zfcp_fsf.c revision 633528c304f20b5c2e3e04d48f620548ce08b12e
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 90997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#include <linux/blktrace_api.h> 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "zfcp_ext.h" 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_request_timeout_handler(unsigned long data) 13287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 14287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; 15287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 62, 16287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt NULL); 17287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 18287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 19287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, 20287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt unsigned long timeout) 21287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 22287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_fsf_request_timeout_handler; 23287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->adapter; 24287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + timeout; 25287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 26287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 27287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 28287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) 29287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 30287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt BUG_ON(!fsf_req->erp_action); 31287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_erp_timeout_handler; 32287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->erp_action; 33287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + 30 * HZ; 34287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 35287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 36287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* association between FSF command and FSF QTCB type */ 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 fsf_qtcb_type[] = { 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 54553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) 55553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 56c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u16 subtable = table >> 16; 57553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt u16 rule = table & 0xffff; 58ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; 59553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 60ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt if (subtable && subtable < ARRAY_SIZE(act_type)) 61553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 62ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied according to ACT rule type %s, " 63ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "rule %d\n", act_type[subtable], rule); 64553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 65553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 66553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, 67553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_port *port) 68553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 69553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 70553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 71ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to port 0x%016Lx\n", 727ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 73553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 74553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 75553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_erp_port_access_denied(port, 55, req); 76553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 77553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 78553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 79553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, 80553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_unit *unit) 81553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 82553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 83553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 84ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to unit 0x%016Lx on port 0x%016Lx\n", 857ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 867ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 87553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 88553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 89553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_erp_unit_access_denied(unit, 59, req); 90553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 91553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 92553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 93553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) 94553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 95ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_err(&req->adapter->ccw_device->dev, "FCP device not " 96ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "operational because of an unsupported FC class\n"); 97553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_erp_adapter_shutdown(req->adapter, 0, 123, req); 98553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 99553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 100553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 101c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 102c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_free - free memory used by fsf request 103c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: pointer to struct zfcp_fsf_req 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 105c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_free(struct zfcp_fsf_req *req) 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 107c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->pool)) { 108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(req, req->pool); 109dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 110dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 111dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens 112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb) { 113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig kmem_cache_free(zfcp_data.fsf_req_qtcb_cache, req); 114dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 115dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 118c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_dismiss_all - dismiss all fsf requests 120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 121c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 122869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * Never ever call this without shutting down the adapter first. 123869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * Otherwise the adapter would continue using and corrupting s390 storage. 124869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * Included BUG_ON() call to ensure this is done. 125869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * ERP is supposed to be the only user of this function. 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1276fcc47111ae14f284007e1b9a5002babb01d913cSwen Schilligvoid zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req, *tmp; 130fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske unsigned long flags; 1316fcc47111ae14f284007e1b9a5002babb01d913cSwen Schillig LIST_HEAD(remove_queue); 132869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke unsigned int i; 133fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske 134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); 135fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske spin_lock_irqsave(&adapter->req_list_lock, flags); 136869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke for (i = 0; i < REQUEST_LIST_SIZE; i++) 1376fcc47111ae14f284007e1b9a5002babb01d913cSwen Schillig list_splice_init(&adapter->req_list[i], &remove_queue); 138fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske spin_unlock_irqrestore(&adapter->req_list_lock, flags); 139fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske 140c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_for_each_entry_safe(req, tmp, &remove_queue, list) { 141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_del(&req->list); 142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; 143c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_complete(req); 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 150c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 151c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port; 152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int d_id = sr_buf->d_id & ZFCP_DID_MASK; 153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unsigned long flags; 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&zfcp_data.config_lock, flags); 156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_for_each_entry(port, &adapter->port_list_head, list) 157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (port->d_id == d_id) { 158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&zfcp_data.config_lock, flags); 159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_CLOSE_PHYS_PORT: 161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_reopen(port, 0, 101, req); 162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_ERROR_PORT: 164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_shutdown(port, 0, 122, req); 165c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 169c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&zfcp_data.config_lock, flags); 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, u8 id, 173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *link_down) 174aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin{ 175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 176698ec01635819c5ae60090bb4efcbeffc41642fbMartin Peschke 177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) 178ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin return; 179ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 180ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); 181ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!link_down) 1832f8f3ed5fc566700cf45d422f4cf1624bd123d93Andreas Herrmann goto out; 184ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 185aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin switch (link_down->error_code) { 186aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_LIGHT: 187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 188ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is no light signal from the local " 189ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel cable\n"); 190aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 191aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WRAP_PLUG: 192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 193ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is a wrap plug instead of a fibre " 194ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "channel cable\n"); 195aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 196aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP: 197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 198ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent fibre channel node does not " 199ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "support FCP\n"); 200aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 201aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FIRMWARE_UPDATE: 202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 203ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device is suspended because of a " 204ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "firmware update\n"); 205553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt break; 206aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_INVALID_WWPN: 207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 208ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device detected a WWPN that is " 209ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "duplicate or not valid\n"); 210aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 211aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_NPIV_SUPPORT: 212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 213ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The fibre channel fabric does not support NPIV\n"); 214aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 215aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP_RESOURCES: 216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 217ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter cannot support more NPIV ports\n"); 218aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 219aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: 220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 221ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent switch cannot support " 222ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "more NPIV ports\n"); 223aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 224aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: 225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 226ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter could not log in to the " 227ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel fabric\n"); 228aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 229aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: 230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 231ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The WWPN assignment file on the FCP adapter " 232ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 233aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 234aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: 235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 236ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The mode table on the FCP adapter " 237ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 238aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 239aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: 240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 241ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "All NPIV ports on the FCP adapter have " 242ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "been assigned\n"); 243aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 244aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin default: 245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 246ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The link between the FCP adapter and " 247ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "the FC fabric is down\n"); 248aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_failed(adapter, id, req); 251aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin} 252aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *ldi = 257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (struct fsf_link_down_info *) &sr_buf->payload; 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: 261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 38, ldi); 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FDISC_FAILED: 264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 39, ldi); 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: 267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 40, NULL); 268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig }; 269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) 272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("dism", adapter, sr_buf); 278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("read", adapter, sr_buf); 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_type) { 286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_PORT_CLOSED: 287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_port_closed(req); 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_INCOMING_ELS: 290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_incoming_els(req); 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SENSE_DATA_AVAIL: 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: 295ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_warn(&adapter->ccw_device->dev, 296ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The error threshold for checksum statistics " 297ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been exceeded\n"); 29857069386699994c3e67042fc4928c418f3a39e01Swen Schillig zfcp_hba_dbf_event_berr(adapter, req); 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_DOWN: 301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_link_down(req); 302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_UP: 304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 305ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The local link has been restored\n"); 306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_modify_adapter_status(adapter, 30, NULL, 308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 102, req); 314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_NOTIFICATION_LOST: 316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) 317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_access_changed(adapter, 135, req); 318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) 319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig schedule_work(&adapter->scan_work); 320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_CFDC_UPDATED: 322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_access_changed(adapter, 136, req); 323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: 325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = sr_buf->payload.word[0]; 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_inc(&adapter->stat_miss); 333b7f15f3c94196accac799727502ed88a029ae7efSwen Schillig queue_work(zfcp_data.work_queue, &adapter->stat_work); 334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) 337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_FCP_RSP_AVAILABLE: 340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RETRY_POSSIBLE: 342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_COMMAND_ABORTED: 345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTED; 346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RECOM: 348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 349ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter reported a problem " 350ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "that cannot be recovered\n"); 351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, 121, req); 352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* all non-return stats set FSFREQ_ERROR*/ 355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_UNKNOWN_COMMAND: 365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 366ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter does not recognize the command 0x%x\n", 367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command); 368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, 120, req); 369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_qual_eval(req); 373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) 378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 383c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_response(req); 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */ 388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->prefix.prot_status) { 392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_GOOD: 393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_FSF_STATUS_PRESENTED: 394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_QTCB_VERSION_ERROR: 396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 397ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "QTCB version 0x%x not supported by FCP adapter " 398ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, 399ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt psq->word[0], psq->word[1]); 400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 117, req); 401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_ERROR_STATE: 403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_SEQ_NUMB_ERROR: 404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, 98, req); 405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_RETRY; 406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_UNSUPP_QTCB_TYPE: 408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 409ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The QTCB type is not supported by the FCP adapter\n"); 410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 118, req); 411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_HOST_CONNECTION_INITIALIZING: 413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, 414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_DUPLICATE_REQUEST_ID: 417c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 418ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%Lx is an ambiguous request identifier\n", 419c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (unsigned long long)qtcb->bottom.support.req_handle); 420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 78, req); 421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_LINK_DOWN: 423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 37, &psq->link_down_info); 424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* FIXME: reopening adapter now? better wait for link up */ 425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, 79, req); 426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_REEST_QUEUE: 428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_modify_adapter_status(adapter, 28, NULL, 430c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 99, req); 435c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 438ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%x is not a valid transfer protocol status\n", 439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->prefix.prot_status); 440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 119, req); 441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_complete - process completion of a FSF request 447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: The FSF request that has been completed. 448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * When a request has been completed either from the FCP adapter, 450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * or it has been dismissed due to a queue shutdown, this function 451c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * is called to process the completion status and trigger further 452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * events related to the FSF request. 453c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 454c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_complete(struct zfcp_fsf_req *req) 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { 457c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_handler(req); 458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 459c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 461c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 462c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_protstatus_eval(req); 463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_eval(req); 464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler(req); 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->erp_action) 467287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_notify(req->erp_action, 0); 468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_COMPLETED; 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 470c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) 471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* notify initiator waiting for the requests completion */ 474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * FIXME: Race! We must not access fsf_req here as it might have been 476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * cleaned up already due to the set ZFCP_STATUS_FSFREQ_COMPLETED 477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * flag. It's an improbable case. But, we have the same paranoia for 478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * the cleanup flag already. 479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Might better be handled using complete()? 480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * (setting the flag and doing wakeup ought to be atomic 481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * with regard to checking the flag as long as waitqueue is 482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * part of the to be released structure) 483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wake_up(&req->completion_wq); 485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) 488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom; 490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.config; 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = bottom->nport_serv_param.wwnn; 499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = bottom->nport_serv_param.wwpn; 500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = bottom->s_id & ZFCP_DID_MASK; 501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = bottom->fc_link_speed; 502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; 503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = bottom->adapter_type; 505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->timer_ticks = bottom->timer_interval; 506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = bottom->peer_d_id & ZFCP_DID_MASK; 513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = bottom->plogi_payload.wwpn; 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = bottom->plogi_payload.wwnn; 515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 523c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 524ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 525ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 526ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt zfcp_erp_adapter_shutdown(adapter, 0, 127, req); 527c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 534553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 535553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 539553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5498a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 555c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 557ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 558ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 559ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 129, req); 561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 571c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 574c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 575c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 42, 578c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 130, req); 582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 587c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 589c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 590c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 591c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 593c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 594c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 595ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 596ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 597c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 125, req); 598c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 599c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 600c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 601c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 602ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 603ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 604c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, 126, req); 605c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 606c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 608c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 609c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 610c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 611c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 612c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 614c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 615c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 6169eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 617c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) 618c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 619c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 620c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 621c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 622c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 623c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 626c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 636c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 637c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 638c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_link_down_info_eval(req, 43, 639c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 640aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 642c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 643d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 6440406289ed57955860a4f8d744a14f4c819260ce4Christof Schmittstatic int zfcp_fsf_sbal_check(struct zfcp_adapter *adapter) 645c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 6460406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt struct zfcp_qdio_queue *req_q = &adapter->req_q; 6470406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt 6480406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 6490406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt if (atomic_read(&req_q->count)) 650c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 1; 6510406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 652c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6552450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Rasplstatic int zfcp_fsf_sbal_available(struct zfcp_adapter *adapter) 6562450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl{ 6572450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl unsigned int count = atomic_read(&adapter->req_q.count); 6582450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!count) 6592450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl atomic_inc(&adapter->qdio_outb_full); 6602450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl return count > 0; 6612450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl} 6622450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl 663c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter) 664c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 665c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig long ret; 666c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 6670406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 668c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = wait_event_interruptible_timeout(adapter->request_wq, 6690406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt zfcp_fsf_sbal_check(adapter), 5 * HZ); 670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret > 0) 671c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 6722450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!ret) 6732450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl atomic_inc(&adapter->qdio_outb_full); 674c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 6750406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 676c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 677c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 678c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 679c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc_noqtcb(mempool_t *pool) 680c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 681c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 682c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 683c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!req) 684c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 685c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 68688f2a977870af655296a682fe2a58c822cd25bb2Christof Schmitt req->pool = pool; 687c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 689c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc_qtcb(mempool_t *pool) 691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req_qtcb *qtcb; 693c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 695c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = kmem_cache_alloc(zfcp_data.fsf_req_qtcb_cache, 698c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig GFP_ATOMIC); 699c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 700c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 701c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 702c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 703c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->fsf_req.qtcb = &qtcb->qtcb; 704c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->fsf_req.pool = pool; 705c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 706c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return &qtcb->fsf_req; 707c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 708c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 709c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter, 710c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u32 fsf_cmd, int req_flags, 711c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_t *pool) 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 71344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_qdio_queue *req_q = &adapter->req_q; 717951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req_flags & ZFCP_REQ_NO_QTCB) 719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_alloc_noqtcb(pool); 720c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 721c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_alloc_qtcb(pool); 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 723c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 724c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 726c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 727c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 729c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 730c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_waitqueue_head(&req->completion_wq); 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 733c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 734c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 735c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->req_id = adapter->req_no++; 736c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_number = 1; 737c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_first = req_q->first; 738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_last = req_q->first; 739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = 1; 740c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 742c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].addr = (void *) req->req_id; 743c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_COMMAND; 744c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->qtcb)) { 746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = req->adapter->fsf_req_seq_no; 747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 748c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->seq_no = adapter->fsf_req_seq_no; 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].addr = (void *) req->qtcb; 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].length = sizeof(struct fsf_qtcb); 757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { 760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 762c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 763951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 764c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req_flags & ZFCP_REQ_AUTO_CLEANUP)) 765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 767c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 771c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 772c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 77345316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens unsigned long flags; 774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int idx; 775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* put allocated FSF request into hash table */ 77745316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_lock_irqsave(&adapter->req_list_lock, flags); 778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig idx = zfcp_reqlist_hash(req->req_id); 779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_add_tail(&req->list, &adapter->req_list[idx]); 78045316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_unlock_irqrestore(&adapter->req_list_lock, flags); 781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 7823765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt req->qdio_outb_usage = atomic_read(&adapter->req_q.count); 783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_qdio_send(req)) { 785c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 7863765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_lock_irqsave(&adapter->req_list_lock, flags); 7873765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt /* lookup request again, list might have changed */ 7883765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt if (zfcp_reqlist_find_safe(adapter, req)) 7893765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt zfcp_reqlist_remove(adapter, req); 7903765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_unlock_irqrestore(&adapter->req_list_lock, flags); 791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, 116, req); 792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb) 797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_status_read(struct zfcp_adapter *adapter) 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 810c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 811c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 81244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8150406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 816c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 817c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_UNSOLICITED_STATUS, 820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_NO_QTCB, 821c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_status_read); 822025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_STATUS; 829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; 830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = 2; 831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sr_buf = mempool_alloc(adapter->pool.data_status_read, GFP_ATOMIC); 833c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 834c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 835c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 836c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 837c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 838c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_curr(req); 840c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->addr = (void *) sr_buf; 841c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->length = sizeof(*sr_buf); 842059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 844c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 848c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 853c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL); 854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 8550406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 856c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 865c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 866c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 869c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8709467a9b3efdd9041202f71cc270bda827a7ec777Martin Peschke zfcp_erp_adapter_reopen(unit->port->adapter, 0, 104, 871c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req); 872c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 876c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 877c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_reopen(unit->port, 0, 105, req); 878c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 882c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 885c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 47, req); 886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_boxed(unit, 48, req); 891c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 892c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 895c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 89765a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 899c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 904c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 910c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 911c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 913c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 914c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: integer specifying the request flags 915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 916c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 917c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * FIXME(design): should be watched by a timeout !!! 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 920c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter, 922c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit, 923c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int req_flags) 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 92544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 926c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 9278a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 9280406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock(&adapter->req_q_lock); 9292450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 931c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND, 932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req_flags, adapter->pool.fsf_req_abort); 933633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 934633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 935c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 936633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 9372abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 942c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 943c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 944c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 952c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 953c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 955c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 957c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 959c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 9600406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock(&adapter->req_q_lock); 961c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 964c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 966c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_ct *send_ct = req->data; 968c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 970c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = -EINVAL; 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 972c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 977c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_ct_response(req); 978c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = 0; 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 981c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 987c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 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{ 10445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = ct->wka_port; 10455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_adapter *adapter = wka_port->adapter; 1046c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1047c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10490406289ed57955860a4f8d744a14f4c819260ce4Christof 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; 10665ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_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: 10910406289ed57955860a4f8d744a14f4c819260ce4Christof 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 11610406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt 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: 11950406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt 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 12060406289ed57955860a4f8d744a14f4c819260ce4Christof 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: 12380406289ed57955860a4f8d744a14f4c819260ce4Christof 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 12490406289ed57955860a4f8d744a14f4c819260ce4Christof 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: 12770406289ed57955860a4f8d744a14f4c819260ce4Christof 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 13020406289ed57955860a4f8d744a14f4c819260ce4Christof 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: 13280406289ed57955860a4f8d744a14f4c819260ce4Christof 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 13480406289ed57955860a4f8d744a14f4c819260ce4Christof 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: 13700406289ed57955860a4f8d744a14f4c819260ce4Christof 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 " 13977ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig "remote port 0x%016Lx\n", 13987ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 1399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_failed(port, 31, req); 1400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1410ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Remote port 0x%016Lx could not be opened\n", 14117ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 1412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_failed(port, 32, req); 1413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1421d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1422d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1423d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els; 1440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb->bottom.support.els1_length >= sizeof(*plogi)) { 1441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (plogi->serv_param.wwpn != port->wwpn) 1442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_PORT_DID_DID, 1443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &port->status); 1444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 1445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig port->wwnn = plogi->serv_param.wwnn; 1446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1451c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1457c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1459c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1461c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 146344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1465c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 14680406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1470c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, 1473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_QTCB_OPEN_PORT_WITH_DID, 1474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1476025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.d_id = erp_action->port->d_id; 1487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1491287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 14980406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 150744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, 107, req); 1512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 1517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_modify_port_status(port, 33, req, 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1527c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 153144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 15360406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT, 1541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1543025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1555c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1558287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 15650406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15695ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) 15705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 15715ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = req->data; 15725ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 15735ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { 15755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 15765ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15775ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15785ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15795ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig switch (header->fsf_status) { 15805ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 15815ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig dev_warn(&req->adapter->ccw_device->dev, 15825ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig "Opening WKA port 0x%x failed\n", wka_port->d_id); 15835ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 15845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15855ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ACCESS_DENIED: 15865ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 15875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig break; 15885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_PORT_ALREADY_OPEN: 15891c1cba17a9078c83a80a099bc207b208d664a13aChristof Schmitt break; 15905ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_GOOD: 15915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->handle = header->port_handle; 15925ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_ONLINE; 15935ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15945ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 15955ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 15965ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 15975ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 15995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_open_wka_port - create and send open wka-port request 16005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * @wka_port: pointer to struct zfcp_wka_port 16015ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16025ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 16035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligint zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port) 16045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16055ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 16065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_adapter *adapter = wka_port->adapter; 16075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16085ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16100406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 16115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 16125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req = zfcp_fsf_req_create(adapter, 16155ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig FSF_QTCB_OPEN_PORT_WITH_DID, 16165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig ZFCP_REQ_AUTO_CLEANUP, 16175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig adapter->pool.fsf_req_erp); 16185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale = zfcp_qdio_sbale_req(req); 16245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 16255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 16265ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16275ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_open_wka_port_handler; 16285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->bottom.support.d_id = wka_port->d_id; 16295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16305ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16315ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16335ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 16360406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 16375ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16395ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16405ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) 16415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16425ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = req->data; 16435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { 16455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 164641bfcf90101601f9507240ff0435c1b73d28a132Swen Schillig zfcp_erp_adapter_reopen(wka_port->adapter, 0, 84, req); 16475ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16485ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16495ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 16505ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16535ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16545ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_close_wka_port - create and send close wka port request 16555ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * @erp_action: pointer to struct zfcp_erp_action 16565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 16585ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligint zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port) 16595ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16605ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 16615ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_adapter *adapter = wka_port->adapter; 16625ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16635ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16645ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16650406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 16665ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 16675ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16685ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16695ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT, 16705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig ZFCP_REQ_AUTO_CLEANUP, 16715ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig adapter->pool.fsf_req_erp); 16725ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16735ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16765ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16775ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale = zfcp_qdio_sbale_req(req); 16785ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 16795ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 16805ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16815ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_close_wka_port_handler; 16825ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16835ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 16845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16855ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16865ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16895ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 16900406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 16915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16925ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16935ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1700c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1705c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, 108, req); 1706c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1709c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 1712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(port, 50, req); 1713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 17155c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 17165c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 17175c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 17185c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt list_for_each_entry(unit, &port->unit_list_head, list) 17195c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 17205c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1725c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1727c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry(unit, &port->unit_list_head, list) 1737c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_CLOSING, &port->status); 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1748c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 175244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 17570406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PHYSICAL_PORT, 1762c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1763c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1764025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1766c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1767c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1769c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 1770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 1771c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_PORT_PHYS_CLOSING, 1779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &erp_action->port->status); 1780c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1781287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1782c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 17880406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 17931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1800aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 180344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1806b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 18091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 109, req); 1815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1821553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 1824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 51, req); 1825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1830553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1831ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1832ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 18337ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18347ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn, 1835ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1836ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1837c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1838553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1839553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 1840c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_access_denied(unit, 60, req); 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1847ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1848ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 18497ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18507ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 1851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_failed(unit, 34, req); 1852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1853c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 185965a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 1860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1870aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1871aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1872aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 1873aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->ccw_device->id.dev_model != ZFCP_DEVICE_MODEL_PRIV)) { 1874aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1875aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1876aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1877aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1878aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1887ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1888ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 18897ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18907ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1894c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1895ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1896ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1897ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 18987ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18997ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 1900c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_failed(unit, 35, req); 1901c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1902c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_shutdown(unit, 0, 80, req); 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1904c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1905ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1906ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 1907ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx\n)", 19087ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19097ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 1910c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_failed(unit, 36, req); 1911c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_shutdown(unit, 0, 81, req); 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1919c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1920c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1922c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1924c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 19251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 192644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1927c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1928c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1929c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 19310406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1935c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_OPEN_LUN, 1936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1938025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1941c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1942c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1943c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 1949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 1950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1952c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1953c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 1955c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 1956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1957287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1960c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1963c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 19640406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1968c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 19691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1970c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1972c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 197344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 19741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1975c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1977c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 110, req); 1978c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 1981c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_reopen(unit->port, 0, 111, req); 1982c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 1985c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 52, req); 1986c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1987c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 1990c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 199265a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 1993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1995c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2006c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 2007c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 2008c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2010c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 201244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2013c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 2014c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2015c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20170406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 2018c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2020c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_LUN, 2021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 2022c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 2023025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2024c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2025c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2026c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2028c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2029c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 2033c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 2034c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 2035c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 2036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 2037c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 2038fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 2039287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 2040c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2041c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 2042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2043c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 2044c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2045c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 20460406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 2047c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2050c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 2051c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2052c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 2053c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 2054c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 2055c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 2056c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_req_latency(struct zfcp_fsf_req *req) 2058c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2059c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct fsf_qual_latency_info *lat_inf; 2060c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct latency_cont *lat; 2061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 2062c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt unsigned long flags; 2063c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_inf = &req->qtcb->prefix.prot_status_qual.latency_info; 2065c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2066c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->bottom.io.data_direction) { 2067c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_READ: 2068c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.read; 2069c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2070c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_WRITE: 2071c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.write; 2072c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2073c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_CMND: 2074c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.cmd; 2075c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2076c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt default: 2077c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt return; 2078c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt } 2079c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2080c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt spin_lock_irqsave(&unit->latencies.lock, flags); 2081c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_inf->channel_lat); 2082c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_inf->fabric_lat); 2083c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat->counter++; 2084c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig spin_unlock_irqrestore(&unit->latencies.lock, flags); 20851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20870997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#ifdef CONFIG_BLK_DEV_IO_TRACE 20880997f1c5fec0b540784611036d458a84a1f7029aStefan Rasplstatic void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req) 20890997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl{ 20900997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct fsf_qual_latency_info *lat_inf; 20910997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct scsi_cmnd *scsi_cmnd = (struct scsi_cmnd *)fsf_req->data; 20920997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct request *req = scsi_cmnd->request; 20930997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct zfcp_blk_drv_data trace; 20940997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl int ticks = fsf_req->adapter->timer_ticks; 20950997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 20960997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags = 0; 20970997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.magic = ZFCP_BLK_DRV_DATA_MAGIC; 20980997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl if (fsf_req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) { 20990997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags |= ZFCP_BLK_LAT_VALID; 21000997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl lat_inf = &fsf_req->qtcb->prefix.prot_status_qual.latency_info; 21010997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.channel_lat = lat_inf->channel_lat * ticks; 21020997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.fabric_lat = lat_inf->fabric_lat * ticks; 21030997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl } 21040997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl if (fsf_req->status & ZFCP_STATUS_FSFREQ_ERROR) 21050997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags |= ZFCP_BLK_REQ_ERROR; 21060997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.inb_usage = fsf_req->qdio_inb_usage; 21070997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.outb_usage = fsf_req->qdio_outb_usage; 21080997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 21090997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl blk_add_driver_data(req->q, req, &trace, sizeof(trace)); 21100997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 21110997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#else 21120997f1c5fec0b540784611036d458a84a1f7029aStefan Rasplstatic inline void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req) 21130997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl{ 21140997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 21150997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#endif 21160997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct scsi_cmnd *scpnt = req->data; 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 2121c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 21221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 sns_len; 2123f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 21241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 21251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2126553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (unlikely(!scpnt)) 2127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 2128553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 2129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 2130c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) { 2132feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_SOFT_ERROR); 2133feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_driver_byte(scpnt, SUGGEST_RETRY); 21341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2137c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 2138feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2142feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_msg_byte(scpnt, COMMAND_COMPLETE); 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->result |= fcp_rsp_iu->scsi_status; 21451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) 2147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_latency(req); 2148c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 21490997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl zfcp_fsf_trace_latency(req); 21500997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_rsp_len_valid)) { 2152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fcp_rsp_info[3] == RSP_CODE_GOOD) 2153feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_OK); 2154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2155feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21566f71d9bc025b02a8cbc2be83b0226a7043a507a5<jejb@titanic.il.steeleye.com> goto skip_fsfstatus; 21571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_sns_len_valid)) { 2161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sns_len = FSF_FCP_RSP_SIZE - sizeof(struct fcp_rsp_iu) + 2162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_rsp_iu->fcp_rsp_len; 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, (u32) SCSI_SENSE_BUFFERSIZE); 21641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, fcp_rsp_iu->fcp_sns_len); 21651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21669d058ecfd444d247b7448e0ef44647514d91a4f2FUJITA Tomonori memcpy(scpnt->sense_buffer, 21671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds zfcp_get_fcp_sns_info_ptr(fcp_rsp_iu), sns_len); 21681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_resid_under)) { 21717936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scsi_set_resid(scpnt, fcp_rsp_iu->fcp_resid); 21727936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori if (scsi_bufflen(scpnt) - scsi_get_resid(scpnt) < 21737936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scpnt->underflow) 2174feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 21778a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin if (scpnt->result != 0) 2178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("erro", 3, req->adapter, scpnt, req); 21798a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else if (scpnt->retries > 0) 2180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("retr", 4, req->adapter, scpnt, req); 21818a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else 2182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("norm", 6, req->adapter, scpnt, req); 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 21881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 21901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 2198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 2199f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 22001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if ((fcp_rsp_info[3] != RSP_CODE_GOOD) || 2202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 22191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 2223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 112, req); 2224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 2228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_reopen(unit->port, 0, 113, req); 2229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 22331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2239ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2240ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 22427ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22437ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 2244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 133, req); 2245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2249ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2250ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 22527ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22537ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 2254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 134, req); 2255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 2258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_port_boxed(unit->port, 53, req); 2259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 2263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_boxed(unit, 54, req); 2264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 2270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_test_link(unit->port); 2271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 22731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22847ba58c9cc16d296290fe645acb11db2b01276544Swen Schilligstatic void zfcp_set_fcp_dl(struct fcp_cmnd_iu *fcp_cmd, u32 fcp_dl) 22857ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig{ 22867ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig u32 *fcp_dl_ptr; 22877ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig 22887ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig /* 22897ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * fcp_dl_addr = start address of fcp_cmnd structure + 22907ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * size of fixed part + size of dynamically sized add_dcp_cdb field 22917ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * SEE FCP-2 documentation 22927ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig */ 22937ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig fcp_dl_ptr = (u32 *) ((unsigned char *) &fcp_cmd[1] + 22947ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (fcp_cmd->add_fcp_cdb_length << 2)); 22957ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig *fcp_dl_ptr = fcp_dl; 22967ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig} 22977ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: adapter where scsi command is issued 2301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 2303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @timer: timer to be started when request is initiated 2304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: flags for fsf_request 23051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter, 2307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit, 2308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct scsi_cmnd *scsi_cmnd, 2309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int use_timer, int req_flags) 23101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 2313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unsigned int sbtype; 2314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 23151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 23191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23200406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock(&adapter->req_q_lock); 23212450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 2322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, 2324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_scsi); 2325025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_get(unit); 2331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &(req->qtcb->bottom.io.fcp_cmnd); 2341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in FCP_CMND IU 2347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_READ; 23521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_READ; 2356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->rddata = 1; 2357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 2360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_WRITE; 2361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->wddata = 1; 23621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 23641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 2365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EIO; 2366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely((scsi_cmnd->device->simple_tags) || 2370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ((atomic_read(&unit->status) & ZFCP_STATUS_UNIT_READONLY) && 2371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (atomic_read(&unit->status) & ZFCP_STATUS_UNIT_SHARED)))) 2372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = SIMPLE_Q; 2373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = UNTAGGED; 23751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(scsi_cmnd->cmd_len > FCP_CDB_LENGTH)) 2377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->add_fcp_cdb_length = 2378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (scsi_cmnd->cmd_len - FCP_CDB_LENGTH) >> 2; 23791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fcp_cmnd_iu->fcp_cdb, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); 238145633fdc9615f9fd2a0ae18e301562298b15abf3Christof Schmitt 2382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 23837ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig fcp_cmnd_iu->add_fcp_cdb_length + sizeof(u32); 23841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig real_bytes = zfcp_qdio_sbals_from_sg(req, sbtype, 2386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_sglist(scsi_cmnd), 2387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(real_bytes < 0)) { 2389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->sbal_number < FSF_MAX_SBALS_PER_REQ) 2390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EIO; 2391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 2393ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Oversize data package, unit 0x%016Lx " 2394ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "on port 0x%016Lx closed\n", 23957ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 23967ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 2397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_unit_shutdown(unit, 0, 131, req); 2398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EINVAL; 2399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 24011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_set_fcp_dl(fcp_cmnd_iu, real_bytes); 24041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (use_timer) 2406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 24071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 24111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2417c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2418c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 24190406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock(&adapter->req_q_lock); 2420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 24211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp-adapter 2426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: int request flags 2429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 24301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter, 2432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit, 2433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u8 tm_flags, int req_flags) 24341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 243544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 24381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 24421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24430406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock(&adapter->req_q_lock); 24442450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!zfcp_fsf_sbal_available(adapter)) 2445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, 2447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_scsi); 2448633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 2449633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 2450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2451633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 24521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2453c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2454c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2455c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2457c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2459c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 24617ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig sizeof(u32); 2462c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE; 2465c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 24661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &req->qtcb->bottom.io.fcp_cmnd; 2468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_management_flags = tm_flags; 24701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 24780406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock(&adapter->req_q_lock); 2479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 24811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb->header.fsf_status != FSF_GOOD) 2485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 24861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 24931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 24961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 249744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25160406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 2517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 2518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 25191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, fsf_cfdc->command, 0, NULL); 2521025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2523c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 25271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= direction; 25308a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 25348a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, direction, fsf_cfdc->sg, 2536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 2539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 25460406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 25478a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wait_event(req->completion_wq, 2550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status & ZFCP_STATUS_FSFREQ_COMPLETED); 2551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 25521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 25541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2555