zfcp_fsf.c revision 44cc76f2d154aa24340354b4711a0fe7f8f08adc
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 fsf_qtcb *qtcb = req->qtcb; 625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 626c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 43, 636c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 637aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 639c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 640d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 641c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_sbal_check(struct zfcp_qdio_queue *queue) 642c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 643d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&queue->lock); 644c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&queue->count)) 645c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 1; 646d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&queue->lock); 647c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6502450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Rasplstatic int zfcp_fsf_sbal_available(struct zfcp_adapter *adapter) 6512450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl{ 6522450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl unsigned int count = atomic_read(&adapter->req_q.count); 6532450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!count) 6542450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl atomic_inc(&adapter->qdio_outb_full); 6552450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl return count > 0; 6562450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl} 6572450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl 658c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter) 659c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 660c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig long ret; 661c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_qdio_queue *req_q = &adapter->req_q; 662c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 663d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&req_q->lock); 664c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = wait_event_interruptible_timeout(adapter->request_wq, 665c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_sbal_check(req_q), 5 * HZ); 666c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret > 0) 667c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 6682450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!ret) 6692450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl atomic_inc(&adapter->qdio_outb_full); 670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 671d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&req_q->lock); 672c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 673c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 674c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 675c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc_noqtcb(mempool_t *pool) 676c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 677c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 678c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 679c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!req) 680c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 681c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 682c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 683c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 684c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 685c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc_qtcb(mempool_t *pool) 686c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 687c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req_qtcb *qtcb; 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 689c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = kmem_cache_alloc(zfcp_data.fsf_req_qtcb_cache, 693c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig GFP_ATOMIC); 694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 695c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 698c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->fsf_req.qtcb = &qtcb->qtcb; 699c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->fsf_req.pool = pool; 700c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 701c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return &qtcb->fsf_req; 702c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 703c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 704c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter, 705c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u32 fsf_cmd, int req_flags, 706c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_t *pool) 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 70844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 710c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 711c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_qdio_queue *req_q = &adapter->req_q; 712951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req_flags & ZFCP_REQ_NO_QTCB) 714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_alloc_noqtcb(pool); 715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_alloc_qtcb(pool); 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 722c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 724c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 725c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 726c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_waitqueue_head(&req->completion_wq); 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 729c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 730c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->req_id = adapter->req_no++; 731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_number = 1; 732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_first = req_q->first; 733c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_last = req_q->first; 734c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = 1; 735c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 736c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 737c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].addr = (void *) req->req_id; 738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_COMMAND; 739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 740c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->qtcb)) { 741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = req->adapter->fsf_req_seq_no; 742c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 743c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 744c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 748c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->seq_no = adapter->fsf_req_seq_no; 749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].addr = (void *) req->qtcb; 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].length = sizeof(struct fsf_qtcb); 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 758951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req_flags & ZFCP_REQ_AUTO_CLEANUP)) 760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 762c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 766c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 767c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 768c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_qdio_queue *req_q = &adapter->req_q; 769c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int idx; 770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 771c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* put allocated FSF request into hash table */ 772c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_list_lock); 773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig idx = zfcp_reqlist_hash(req->req_id); 774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_add_tail(&req->list, &adapter->req_list[idx]); 775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_list_lock); 776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_qdio_send(req)) { 779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Queues are down..... */ 780c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_list_lock); 782c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_reqlist_remove(adapter, req); 783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_list_lock); 784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* undo changes in request queue made for this request */ 785c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_add(req->sbal_number, &req_q->count); 786c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req_q->first -= req->sbal_number; 787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req_q->first += QDIO_MAX_BUFFERS_PER_Q; 788c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req_q->first %= QDIO_MAX_BUFFERS_PER_Q; /* wrap */ 789c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, 116, req); 790c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb) 795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_status_read(struct zfcp_adapter *adapter) 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 809c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 81044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 811c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 813d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 816c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 817c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_UNSOLICITED_STATUS, 818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_NO_QTCB, 819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_status_read); 820025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 821c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_STATUS; 827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; 828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = 2; 829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sr_buf = mempool_alloc(adapter->pool.data_status_read, GFP_ATOMIC); 831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 833c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 834c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 835c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 836c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 837c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_curr(req); 838c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->addr = (void *) sr_buf; 839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->length = sizeof(*sr_buf); 840059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 841c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 842c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 848c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL); 852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 853d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 856c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 865c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8689467a9b3efdd9041202f71cc270bda827a7ec777Martin Peschke zfcp_erp_adapter_reopen(unit->port->adapter, 0, 104, 869c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req); 870c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 874c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 875c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_reopen(unit->port, 0, 105, req); 876c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 880c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 883c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 47, req); 884c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 885c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 888c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_boxed(unit, 48, req); 889c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 893c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 89565a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 897c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 902c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 908c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 910c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 911c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: integer specifying the request flags 913c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 914c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * FIXME(design): should be watched by a timeout !!! 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 918c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 919c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter, 920c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit, 921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int req_flags) 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 92344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 924c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 9258a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 926c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_q.lock); 9272450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 928c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 929c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND, 930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req_flags, adapter->pool.fsf_req_abort); 931025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) 932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 9332abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 935c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 942c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 943c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 944c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 945c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 952c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 953c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 955c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_q.lock); 957c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 960c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 962c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 963c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_ct *send_ct = req->data; 964c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_ct->port; 965c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = -EINVAL; 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 969c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 974c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_ct_response(req); 975c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = 0; 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 978c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds zfcp_test_link(port); 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 985c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 990c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(port, 49, req); 994c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 995c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 997c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 998c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, 106, req); 999c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 1004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1009c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (send_ct->handler) 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_ct->handler(send_ct->handler_data); 1011c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1013c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_setup_sbals(struct zfcp_fsf_req *req, 1014c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct scatterlist *sg_req, 1015c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct scatterlist *sg_resp, int max_sbals) 1016c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1017c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 1018c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1019c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ, 1020c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_req, max_sbals); 1021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 1022c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -ENOMEM; 1023c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 1024c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = ZFCP_LAST_SBALE_PER_SBAL; 1025c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1026c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ, 1027c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_resp, max_sbals); 1028c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 1029c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -ENOMEM; 1030c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.resp_buf_length = bytes; 1031c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 1037c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 1038c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 1039c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: if non-null the Generic Service request sent within ERP 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1041c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool, 1042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_erp_action *erp_action) 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1044c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = ct->port; 1045c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = port->adapter; 1046c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1047c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1049d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1050c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1051c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1053c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_GENERIC, 1054c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, pool); 1055025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1056c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10583f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 10593f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 1060c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_setup_sbals(req, ct->req, ct->resp, 1061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 1062553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1065c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 1066c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = port->handle; 1067c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.service_class = FSF_CLASS_3; 1068c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.timeout = ct->timeout; 1069c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1070c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1071c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_ct_request(req); 1072c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1073c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (erp_action) { 1074c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1075c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1076287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1077c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } else 1078c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1080c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1081c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1082c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1084c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1086c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1088c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (erp_action) 1089c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 1090c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1091d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 1092c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1095c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1097c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_els *send_els = req->data; 1098c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1099c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1101c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1103c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 1108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_els_response(req); 1109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 111764b29a130901d5b8578e9f602cf2dae56aaff224Andreas Herrmann if (port && (send_els->ls_code != ZFCP_LS_ADISC)) 111864b29a130901d5b8578e9f602cf2dae56aaff224Andreas Herrmann zfcp_test_link(port); 1119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /*fall through */ 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1122c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1136c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1142aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 1150c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_els(struct zfcp_send_els *els) 1151c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = els->adapter; 1154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 1155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&els->port->status) & 1158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 1159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 1160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_q.lock); 11622450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 1163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_ELS, 1165c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, NULL); 1166025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1169c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1170c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 117144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig ret = zfcp_fsf_setup_sbals(req, els->req, els->resp, 2); 117244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig 1173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 1177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->d_id = els->d_id; 1179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->service_class = FSF_CLASS_3; 1180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->timeout = 2 * R_A_TOV; 1181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1183c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_els_request(req); 1184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_q.lock); 1196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 120144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 120352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1206d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 12072450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 1208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, 1210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_QTCB_EXCHANGE_CONFIG_DATA, 1211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1213025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 121952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 122052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1223aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1224aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 12259eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1226aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1231287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1238d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 123952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 124052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter, 1243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 124452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 124544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1249d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA, 1254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 0, NULL); 1255025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 125852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 125952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 126152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 126252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 1263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 126452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 126652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 126752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 126852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 126952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 127052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 127152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 127352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1277d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 1278553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wait_event(req->completion_wq, 1280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status & ZFCP_STATUS_FSFREQ_COMPLETED); 128152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 128352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1289aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 129444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 129652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1299553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 130052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1302d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 13032450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 1304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 1306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1308025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1311aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1312aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 131452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 131552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 132052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1321287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 132552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig erp_action->fsf_req = NULL; 132652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1328d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 132952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 133052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 133152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 133252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 133352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 1335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 133752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter, 1339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 134052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 134144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 134452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1345553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 134652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 134752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1348d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 13492450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 1350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 0, 1353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig NULL); 1354025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 135952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 136152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 136352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 136452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 136552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1370d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 1371553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wait_event(req->completion_wq, 1373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status & ZFCP_STATUS_FSFREQ_COMPLETED); 1374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fsf_plogi *plogi; 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 138644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1396ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 1397ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "remote port 0x%016Lx\n", port->wwpn); 1398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_failed(port, 31, req); 1399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1409ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Remote port 0x%016Lx could not be opened\n", 1410ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt port->wwpn); 1411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_failed(port, 32, req); 1412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1420d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1421d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1422d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&port->status) & ZFCP_STATUS_PORT_NO_WWPN) 1439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 1440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els; 1442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb->bottom.support.els1_length >= sizeof(*plogi)) { 1443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (plogi->serv_param.wwpn != port->wwpn) 1444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_PORT_DID_DID, 1445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &port->status); 1446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 1447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig port->wwnn = plogi->serv_param.wwnn; 1448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1453c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1459c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1461c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 146544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1470d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, 1475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_QTCB_OPEN_PORT_WITH_DID, 1476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1478025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.d_id = erp_action->port->d_id; 1489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1493287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1500d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 150944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, 107, req); 1514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 1519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_modify_port_status(port, 33, req, 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1527c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 153344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1538d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT, 1543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1545025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1555c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1560287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1567d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1571c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1573c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1574c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, 108, req); 1583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 1589c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(port, 50, req); 1590c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1591c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 15925c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 15935c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 15945c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 15955c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt list_for_each_entry(unit, &port->unit_list_head, list) 15965c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 15975c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1602c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1604c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry(unit, &port->unit_list_head, list) 1614c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1615c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1618c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_CLOSING, &port->status); 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1622c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1623c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1624c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 162944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1634d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1638c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PHYSICAL_PORT, 1639c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1640c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1641025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1642c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1643c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1644c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1646c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 1647c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 1648c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1650c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1651c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1652c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1653c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1654c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1655c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_PORT_PHYS_CLOSING, 1656c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &erp_action->port->status); 1657c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1658287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1659c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1661c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1664c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1665d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1669c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1671c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1672c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1673c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1674c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1675c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1676c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1677aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1679c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 168044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1683b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 109, req); 1692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1698553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 1701c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 51, req); 1702c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1703c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1706c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1707553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1708ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1709ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 1710553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->fcp_lun, 1711553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->port->wwpn, 1712ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1713ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1715553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1716553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 1717c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_access_denied(unit, 60, req); 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1720c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1723c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1724ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1725ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 1726553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->fcp_lun, unit->port->wwpn); 1727c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_failed(unit, 34, req); 1728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1729c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1730c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 173565a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 1736c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1746aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1747aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1748aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 1749aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->ccw_device->id.dev_model != ZFCP_DEVICE_MODEL_PRIV)) { 1750aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1751aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1752aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1753aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1754aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1762c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1763ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1764ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 1765553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->fcp_lun, unit->port->wwpn); 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1769c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1770ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1771ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1772ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 1773553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->fcp_lun, unit->port->wwpn); 1774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_failed(unit, 35, req); 1775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_shutdown(unit, 0, 80, req); 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1779ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1780ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 1781ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx\n)", 1782553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt unit->fcp_lun, unit->port->wwpn); 1783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_failed(unit, 36, req); 1784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1785c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_shutdown(unit, 0, 81, req); 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 179944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1804d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_OPEN_LUN, 1809c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1810c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1811025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1816c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1821c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 1822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 1823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 1828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 1829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1830287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1833c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1836c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1837d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1841c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 184644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1848c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 110, req); 1851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 1854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_reopen(unit->port, 0, 111, req); 1855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 1858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 52, req); 1859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 1863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 186565a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 1866c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1868c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1879c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 1880c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 1881c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1883c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 188544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1888c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1890d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 1891c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1893c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_LUN, 1894c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1895c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1896025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1897c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1898c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1899c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1901c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 1902c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1905c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1906c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 1907c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 1908c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1910c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1911fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 1912287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1913c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1914c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 1915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1916c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 1917c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1918c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1919d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 1920c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1923c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 1924c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 1925c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 1926c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 1927c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 1928c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 1929c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 1930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_req_latency(struct zfcp_fsf_req *req) 1931c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 1932c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct fsf_qual_latency_info *lat_inf; 1933c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct latency_cont *lat; 1934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 1935c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt unsigned long flags; 1936c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 1937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_inf = &req->qtcb->prefix.prot_status_qual.latency_info; 1938c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 1939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->bottom.io.data_direction) { 1940c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_READ: 1941c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.read; 1942c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 1943c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_WRITE: 1944c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.write; 1945c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 1946c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_CMND: 1947c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.cmd; 1948c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 1949c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt default: 1950c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt return; 1951c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt } 1952c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 1953c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt spin_lock_irqsave(&unit->latencies.lock, flags); 1954c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_inf->channel_lat); 1955c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_inf->fabric_lat); 1956c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat->counter++; 1957c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock_irqrestore(&unit->latencies.lock, flags); 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1960c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1962c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct scsi_cmnd *scpnt = req->data; 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 1964c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 sns_len; 1966f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1969553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (unlikely(!scpnt)) 1970c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 1971553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 1972c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 1973c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1974c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) { 1975feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_SOFT_ERROR); 1976feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_driver_byte(scpnt, SUGGEST_RETRY); 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1980c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 1981feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 19831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1985feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_msg_byte(scpnt, COMMAND_COMPLETE); 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->result |= fcp_rsp_iu->scsi_status; 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1989c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) 1990c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_latency(req); 1991c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_rsp_len_valid)) { 1993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fcp_rsp_info[3] == RSP_CODE_GOOD) 1994feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_OK); 1995c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 1996feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 19976f71d9bc025b02a8cbc2be83b0226a7043a507a5<jejb@titanic.il.steeleye.com> goto skip_fsfstatus; 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_sns_len_valid)) { 2002c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sns_len = FSF_FCP_RSP_SIZE - sizeof(struct fcp_rsp_iu) + 2003c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_rsp_iu->fcp_rsp_len; 20041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, (u32) SCSI_SENSE_BUFFERSIZE); 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, fcp_rsp_iu->fcp_sns_len); 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20079d058ecfd444d247b7448e0ef44647514d91a4f2FUJITA Tomonori memcpy(scpnt->sense_buffer, 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds zfcp_get_fcp_sns_info_ptr(fcp_rsp_iu), sns_len); 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_resid_under)) { 20127936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scsi_set_resid(scpnt, fcp_rsp_iu->fcp_resid); 20137936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori if (scsi_bufflen(scpnt) - scsi_get_resid(scpnt) < 20147936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scpnt->underflow) 2015feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2017c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 20188a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin if (scpnt->result != 0) 2019c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("erro", 3, req->adapter, scpnt, req); 20208a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else if (scpnt->retries > 0) 2021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("retr", 4, req->adapter, scpnt, req); 20228a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else 2023c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("norm", 6, req->adapter, scpnt, req); 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 20321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2033c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 20341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 2039c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 2040f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 20411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if ((fcp_rsp_info[3] != RSP_CODE_GOOD) || 2043c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2044c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2045c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2046c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2047c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2048c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2049c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2050c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2051c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2052c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2053c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2054c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2055c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2056c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2058c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 20591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2062c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2063c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 2064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 112, req); 2065c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2066c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2067c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2068c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 2069c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_reopen(unit->port, 0, 113, req); 2070c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2072c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2073c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 20741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2075c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2076c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2077c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2078c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2079c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2080ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2081ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2082c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 2083c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit->fcp_lun, unit->port->wwpn); 2084c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 133, req); 2085c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2086c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2088c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2089ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2090ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2091c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 2092c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit->fcp_lun, unit->port->wwpn); 2093c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 134, req); 2094c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2095c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2096c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 2097c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 53, req); 2098c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2099c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2100c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2101c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 2102c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_boxed(unit, 54, req); 2103c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2104c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2105c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2106c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2107c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 2109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_test_link(unit->port); 2110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 21111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 21121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2118c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 21211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: adapter where scsi command is issued 2126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 2128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @timer: timer to be started when request is initiated 2129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: flags for fsf_request 21301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter, 2132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit, 2133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct scsi_cmnd *scsi_cmnd, 2134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int use_timer, int req_flags) 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2136c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2137c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 2138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unsigned int sbtype; 2139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2143c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 21441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2145c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_q.lock); 21462450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 2147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, 2149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_scsi); 2150025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2151c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_get(unit); 2156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2165c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &(req->qtcb->bottom.io.fcp_cmnd); 2166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2169c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2170c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2171c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in FCP_CMND IU 2172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_READ; 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_READ; 2181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->rddata = 1; 2182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2183c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 2185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_WRITE; 2186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->wddata = 1; 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 2190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EIO; 2191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely((scsi_cmnd->device->simple_tags) || 2195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ((atomic_read(&unit->status) & ZFCP_STATUS_UNIT_READONLY) && 2196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (atomic_read(&unit->status) & ZFCP_STATUS_UNIT_SHARED)))) 2197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = SIMPLE_Q; 2198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = UNTAGGED; 22001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(scsi_cmnd->cmd_len > FCP_CDB_LENGTH)) 2202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->add_fcp_cdb_length = 2203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (scsi_cmnd->cmd_len - FCP_CDB_LENGTH) >> 2; 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fcp_cmnd_iu->fcp_cdb, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); 220645633fdc9615f9fd2a0ae18e301562298b15abf3Christof Schmitt 2207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 2208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->add_fcp_cdb_length + sizeof(fcp_dl_t); 22091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig real_bytes = zfcp_qdio_sbals_from_sg(req, sbtype, 2211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_sglist(scsi_cmnd), 2212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(real_bytes < 0)) { 2214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->sbal_number < FSF_MAX_SBALS_PER_REQ) 2215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EIO; 2216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 2218ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Oversize data package, unit 0x%016Lx " 2219ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "on port 0x%016Lx closed\n", 2220ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt unit->fcp_lun, unit->port->wwpn); 2221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_shutdown(unit, 0, 131, req); 2222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EINVAL; 2223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_set_fcp_dl(fcp_cmnd_iu, real_bytes); 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (use_timer) 2230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 22311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_q.lock); 2244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp-adapter 2250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: int request flags 2253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter, 2256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit, 2257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u8 tm_flags, int req_flags) 22581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 225944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 22621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 22661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_lock(&adapter->req_q.lock); 22682450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 2269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, 2271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_scsi); 2272025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) 2273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 2283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sizeof(fcp_dl_t); 2284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE; 2287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 22881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &req->qtcb->bottom.io.fcp_cmnd; 2290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_management_flags = tm_flags; 22921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock(&adapter->req_q.lock); 2301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 23031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb->header.fsf_status != FSF_GOOD) 2307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 23081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 23151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 23181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 231944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2338d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_lock_bh(&adapter->req_q.lock); 2339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 2340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, fsf_cfdc->command, 0, NULL); 2343025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 23491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= direction; 23528a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 23568a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, direction, fsf_cfdc->sg, 2358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 2361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2368d4538817287e56abc938900886301a5bdfafbfcdChristof Schmitt spin_unlock_bh(&adapter->req_q.lock); 23698a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wait_event(req->completion_wq, 2372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status & ZFCP_STATUS_FSFREQ_COMPLETED); 2373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 23741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 23761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2377