zfcp_fsf.c revision 058b8647892ed49ba6a0d2c0966a72e20e2e69ff
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * zfcp device driver 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * Implementation of FSF commands. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6a2fa0aede07c9488239dcac1eae58233181c355aChristof Schmitt * Copyright IBM Corporation 2002, 2009 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt#define KMSG_COMPONENT "zfcp" 10ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 11ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt 120997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#include <linux/blktrace_api.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "zfcp_ext.h" 14dcd20e2316cdc333dfdee09649dbe3642eb30e75Christof Schmitt#include "zfcp_dbf.h" 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1663caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt#define ZFCP_REQ_AUTO_CLEANUP 0x00000002 1763caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt#define ZFCP_REQ_NO_QTCB 0x00000008 1863caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt 19287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_request_timeout_handler(unsigned long data) 20287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 21287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; 225ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 235ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsrth_1", NULL); 24287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 25287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 26287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, 27287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt unsigned long timeout) 28287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 29287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_fsf_request_timeout_handler; 30287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->adapter; 31287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + timeout; 32287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 33287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 34287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 35287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) 36287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 37287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt BUG_ON(!fsf_req->erp_action); 38287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_erp_timeout_handler; 39287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->erp_action; 40287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + 30 * HZ; 41287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 42287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 43287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* association between FSF command and FSF QTCB type */ 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 fsf_qtcb_type[] = { 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 61553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) 62553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 63c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u16 subtable = table >> 16; 64553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt u16 rule = table & 0xffff; 65ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; 66553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 67ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt if (subtable && subtable < ARRAY_SIZE(act_type)) 68553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 69ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied according to ACT rule type %s, " 70ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "rule %d\n", act_type[subtable], rule); 71553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 72553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 73553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, 74553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_port *port) 75553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 76553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 77553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 78ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to port 0x%016Lx\n", 797ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 80553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 81553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 825ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_access_denied(port, "fspad_1", req); 83553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 84553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 85553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 86553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, 87553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_unit *unit) 88553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 89553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 90553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 91ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to unit 0x%016Lx on port 0x%016Lx\n", 927ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 937ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 94553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 95553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 965ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsuad_1", req); 97553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 98553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 99553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 100553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) 101553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 102ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_err(&req->adapter->ccw_device->dev, "FCP device not " 103ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "operational because of an unsupported FC class\n"); 1045ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); 105553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 106553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 107553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_free - free memory used by fsf request 110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: pointer to struct zfcp_fsf_req 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_free(struct zfcp_fsf_req *req) 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->pool)) { 115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(req, req->pool); 116dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 117dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 118dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens 119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb) { 120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig kmem_cache_free(zfcp_data.fsf_req_qtcb_cache, req); 121dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 122dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port; 130c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int d_id = sr_buf->d_id & ZFCP_DID_MASK; 131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unsigned long flags; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&zfcp_data.config_lock, flags); 134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_for_each_entry(port, &adapter->port_list_head, list) 135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (port->d_id == d_id) { 136c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&zfcp_data.config_lock, flags); 1375ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(port, 0, "fssrpc1", req); 138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 140c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&zfcp_data.config_lock, flags); 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1435ffd51a5e495a2a002efd523aef0001912b080bdSwen Schilligstatic void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id, 144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *link_down) 145aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin{ 146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 14770932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt unsigned long flags; 148698ec01635819c5ae60090bb4efcbeffc41642fbMartin Peschke 149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) 150ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin return; 151ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 152ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); 15370932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt 15470932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt read_lock_irqsave(&zfcp_data.config_lock, flags); 155a2fa0aede07c9488239dcac1eae58233181c355aChristof Schmitt zfcp_scsi_schedule_rports_block(adapter); 15670932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt read_unlock_irqrestore(&zfcp_data.config_lock, flags); 157ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!link_down) 1592f8f3ed5fc566700cf45d422f4cf1624bd123d93Andreas Herrmann goto out; 160ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 161aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin switch (link_down->error_code) { 162aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_LIGHT: 163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 164ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is no light signal from the local " 165ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel cable\n"); 166aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 167aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WRAP_PLUG: 168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 169ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is a wrap plug instead of a fibre " 170ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "channel cable\n"); 171aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 172aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP: 173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 174ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent fibre channel node does not " 175ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "support FCP\n"); 176aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 177aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FIRMWARE_UPDATE: 178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 179ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device is suspended because of a " 180ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "firmware update\n"); 181553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt break; 182aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_INVALID_WWPN: 183c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 184ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device detected a WWPN that is " 185ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "duplicate or not valid\n"); 186aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 187aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_NPIV_SUPPORT: 188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 189ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The fibre channel fabric does not support NPIV\n"); 190aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 191aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP_RESOURCES: 192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 193ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter cannot support more NPIV ports\n"); 194aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 195aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: 196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 197ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent switch cannot support " 198ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "more NPIV ports\n"); 199aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 200aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: 201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 202ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter could not log in to the " 203ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel fabric\n"); 204aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 205aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: 206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 207ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The WWPN assignment file on the FCP adapter " 208ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 209aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 210aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: 211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 212ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The mode table on the FCP adapter " 213ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 214aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 215aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: 216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 217ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "All NPIV ports on the FCP adapter have " 218ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "been assigned\n"); 219aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 220aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin default: 221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 222ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The link between the FCP adapter and " 223ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "the FC fabric is down\n"); 224aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_failed(adapter, id, req); 227aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin} 228aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *ldi = 233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (struct fsf_link_down_info *) &sr_buf->payload; 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: 2375ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi); 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FDISC_FAILED: 2405ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi); 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: 2435ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL); 244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig }; 245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) 248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("dism", adapter, sr_buf); 254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("read", adapter, sr_buf); 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_type) { 262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_PORT_CLOSED: 263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_port_closed(req); 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_INCOMING_ELS: 266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_incoming_els(req); 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SENSE_DATA_AVAIL: 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: 271ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_warn(&adapter->ccw_device->dev, 272ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The error threshold for checksum statistics " 273ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been exceeded\n"); 27457069386699994c3e67042fc4928c418f3a39e01Swen Schillig zfcp_hba_dbf_event_berr(adapter, req); 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_DOWN: 277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_link_down(req); 278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_UP: 280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 281ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The local link has been restored\n"); 282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 2835ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, 284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 2895ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fssrh_2", req); 290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_NOTIFICATION_LOST: 292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) 2935ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_3", 2945ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) 296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig schedule_work(&adapter->scan_work); 297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_CFDC_UPDATED: 2995ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); 300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: 302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = sr_buf->payload.word[0]; 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_inc(&adapter->stat_miss); 310b7f15f3c94196accac799727502ed88a029ae7efSwen Schillig queue_work(zfcp_data.work_queue, &adapter->stat_work); 311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) 314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_FCP_RSP_AVAILABLE: 317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RETRY_POSSIBLE: 319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_COMMAND_ABORTED: 322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTED; 323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RECOM: 325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 326ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter reported a problem " 327ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "that cannot be recovered\n"); 3285ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); 329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* all non-return stats set FSFREQ_ERROR*/ 332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_UNKNOWN_COMMAND: 342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 343ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter does not recognize the command 0x%x\n", 344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command); 3455ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); 346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_qual_eval(req); 350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) 355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_response(req); 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */ 365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->prefix.prot_status) { 369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_GOOD: 370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_FSF_STATUS_PRESENTED: 371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_QTCB_VERSION_ERROR: 373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 374ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "QTCB version 0x%x not supported by FCP adapter " 375ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, 376ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt psq->word[0], psq->word[1]); 3775ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); 378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_ERROR_STATE: 380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_SEQ_NUMB_ERROR: 3815ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); 382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_RETRY; 383c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_UNSUPP_QTCB_TYPE: 385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 386ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The QTCB type is not supported by the FCP adapter\n"); 3875ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); 388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_HOST_CONNECTION_INITIALIZING: 390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, 391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_DUPLICATE_REQUEST_ID: 394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 395ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%Lx is an ambiguous request identifier\n", 396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (unsigned long long)qtcb->bottom.support.req_handle); 3975ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); 398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_LINK_DOWN: 4005ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fspse_5", 4015ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig &psq->link_down_info); 402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* FIXME: reopening adapter now? better wait for link up */ 4035ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); 404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_REEST_QUEUE: 406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 4075ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL, 408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 4125ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 4135ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fspse_8", req); 414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 417ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%x is not a valid transfer protocol status\n", 418c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->prefix.prot_status); 4195ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); 420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_complete - process completion of a FSF request 426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: The FSF request that has been completed. 427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * When a request has been completed either from the FCP adapter, 429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * or it has been dismissed due to a queue shutdown, this function 430c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * is called to process the completion status and trigger further 431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * events related to the FSF request. 432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 433bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligstatic void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 435c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { 436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_handler(req); 437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_protstatus_eval(req); 442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_eval(req); 443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler(req); 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->erp_action) 446287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_notify(req->erp_action, 0); 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) 449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 451058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig complete(&req->completion); 452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 454bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 455bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_req_dismiss_all - dismiss all fsf requests 456bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 457bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * 458bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Never ever call this without shutting down the adapter first. 459bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Otherwise the adapter would continue using and corrupting s390 storage. 460bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Included BUG_ON() call to ensure this is done. 461bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * ERP is supposed to be the only user of this function. 462bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 463bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligvoid zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) 464bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 465bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *req, *tmp; 466bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned long flags; 467bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig LIST_HEAD(remove_queue); 468bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned int i; 469bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 470bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); 471bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_lock_irqsave(&adapter->req_list_lock, flags); 472bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (i = 0; i < REQUEST_LIST_SIZE; i++) 473bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_splice_init(&adapter->req_list[i], &remove_queue); 474bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_unlock_irqrestore(&adapter->req_list_lock, flags); 475bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 476bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_for_each_entry_safe(req, tmp, &remove_queue, list) { 477bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&req->list); 478bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; 479bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(req); 480bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 481bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 482bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) 484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom; 486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.config; 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = bottom->nport_serv_param.wwnn; 495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = bottom->nport_serv_param.wwpn; 496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = bottom->s_id & ZFCP_DID_MASK; 497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = bottom->fc_link_speed; 498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; 499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = bottom->adapter_type; 501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->timer_ticks = bottom->timer_interval; 502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = bottom->peer_d_id & ZFCP_DID_MASK; 509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = bottom->plogi_payload.wwpn; 510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = bottom->plogi_payload.wwnn; 511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 518dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 521ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 522ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 5235ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); 524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 531553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 532553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 536553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5468a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 554ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 555ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 556ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 5575ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); 558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 571c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5745ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsecdh2", 575c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 5785ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); 579c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 587c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 590c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 591c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 592ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 593ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5945ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); 595c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 596c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 597c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 598c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 599ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 600ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 6015ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); 602c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 603c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 605c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 606c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 607c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 608c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 609c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 611c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 612c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 6139eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 6140282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { 615c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 6160282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6170282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt } else 618c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 619c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 620c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 621c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 623c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 624c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 626c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 6365ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsepdh1", 637c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 638aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 640c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 641d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 6427001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermannstatic int zfcp_fsf_sbal_check(struct zfcp_adapter *adapter) 643c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 644dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt struct zfcp_qdio_queue *req_q = &adapter->req_q; 645c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 6467001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann spin_lock_bh(&adapter->req_q_lock); 6477001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann if (atomic_read(&req_q->count)) 6487001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann return 1; 6497001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann spin_unlock_bh(&adapter->req_q_lock); 6507001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann return 0; 6517001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann} 6527001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann 6537001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermannstatic int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter) 6547001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann{ 6557001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann long ret; 656dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt 6570406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 658c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = wait_event_interruptible_timeout(adapter->request_wq, 6597001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann zfcp_fsf_sbal_check(adapter), 5 * HZ); 660c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret > 0) 661c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 662cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt if (!ret) { 6632450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl atomic_inc(&adapter->qdio_outb_full); 664cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt /* assume hanging outbound queue, try queue recovery */ 665cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL); 666cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt } 6677001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann 6687001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann spin_lock_bh(&adapter->req_q_lock); 669c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 671c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 672c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc_noqtcb(mempool_t *pool) 673c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 674c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 675c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 676c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!req) 677c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 678c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 67988f2a977870af655296a682fe2a58c822cd25bb2Christof Schmitt req->pool = pool; 680c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 681c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 682c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 683c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc_qtcb(mempool_t *pool) 684c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 685c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req_qtcb *qtcb; 686c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 687c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 689c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = kmem_cache_alloc(zfcp_data.fsf_req_qtcb_cache, 691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig GFP_ATOMIC); 692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 693c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 695c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->fsf_req.qtcb = &qtcb->qtcb; 697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->fsf_req.pool = pool; 698c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 699c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return &qtcb->fsf_req; 700c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 701c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 702c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter, 703c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u32 fsf_cmd, int req_flags, 704c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_t *pool) 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 70644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 708c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 709c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_qdio_queue *req_q = &adapter->req_q; 710951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 711c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req_flags & ZFCP_REQ_NO_QTCB) 712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_alloc_noqtcb(pool); 713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_alloc_qtcb(pool); 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 7171e9b16430ff4fd09408a74342d6b8338228e2f70Christof Schmitt return ERR_PTR(-ENOMEM); 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 720c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 722c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 723c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 724058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig init_completion(&req->completion); 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 726c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 727c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 72852bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt req->req_id = adapter->req_no; 729c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_number = 1; 730c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_first = req_q->first; 731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_last = req_q->first; 732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = 1; 733c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 734c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 735c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].addr = (void *) req->req_id; 736c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_COMMAND; 737c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->qtcb)) { 739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = req->adapter->fsf_req_seq_no; 740c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 742c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 743c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 744c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->seq_no = adapter->fsf_req_seq_no; 747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 748c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].addr = (void *) req->qtcb; 749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].length = sizeof(struct fsf_qtcb); 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 756951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req_flags & ZFCP_REQ_AUTO_CLEANUP)) 758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 763c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 764c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 766135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann unsigned long flags; 767135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann int idx; 768135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann int with_qtcb = (req->qtcb != NULL); 769c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* put allocated FSF request into hash table */ 77145316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_lock_irqsave(&adapter->req_list_lock, flags); 772c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig idx = zfcp_reqlist_hash(req->req_id); 773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_add_tail(&req->list, &adapter->req_list[idx]); 77445316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_unlock_irqrestore(&adapter->req_list_lock, flags); 775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 7763765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt req->qdio_outb_usage = atomic_read(&adapter->req_q.count); 777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_qdio_send(req)) { 779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 7803765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_lock_irqsave(&adapter->req_list_lock, flags); 7813765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt /* lookup request again, list might have changed */ 7823765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt if (zfcp_reqlist_find_safe(adapter, req)) 7833765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt zfcp_reqlist_remove(adapter, req); 7843765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_unlock_irqrestore(&adapter->req_list_lock, flags); 7855ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); 786c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 788c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 789c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 790135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann if (with_qtcb) 791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 79252bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt adapter->req_no++; 793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_status_read(struct zfcp_adapter *adapter) 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 80744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8100406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 811c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_UNSOLICITED_STATUS, 815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_NO_QTCB, 816c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_status_read); 817025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; 824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = 2; 825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sr_buf = mempool_alloc(adapter->pool.data_status_read, GFP_ATOMIC); 827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 833c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_curr(req); 834c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->addr = (void *) sr_buf; 835c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->length = sizeof(*sr_buf); 836059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 837c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 838c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 841c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 842c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 844c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL); 848c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 8490406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 853c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 856c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8645ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 8655ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsafch1", req); 866c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 870c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8715ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); 872c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 876c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 8795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsafch3", req); 880c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 881c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 8845ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fsafch4", req); 885c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 889c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 89165a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 892dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 894c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 899c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 905c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 906c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 907c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 908c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 91263caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_unit *unit) 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 91444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 91663caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 9178a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 91892cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 91992cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 920c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND, 92263caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt 0, adapter->pool.fsf_req_abort); 923633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 924633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 925c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 926633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 9272abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 928c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 929c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 933c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 941c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 942c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 943c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 944c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 945c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 95092cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 957c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_ct *send_ct = req->data; 958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 960c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = -EINVAL; 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 962c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_ct_response(req); 968c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = 0; 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 971c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 977c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 984c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 985c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 987c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 9885ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); 989dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 990c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 995c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1000c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (send_ct->handler) 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_ct->handler(send_ct->handler_data); 1002c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1004426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmittstatic void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale, 1005426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_req, 1006426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_resp) 1007426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 1008426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ; 1009426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[2].addr = sg_virt(sg_req); 1010426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[2].length = sg_req->length; 1011426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].addr = sg_virt(sg_resp); 1012426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].length = sg_resp->length; 1013426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY; 1014426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 1015426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 1016426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmittstatic int zfcp_fsf_one_sbal(struct scatterlist *sg) 1017426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 1018426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return sg_is_last(sg) && sg->length <= PAGE_SIZE; 1019426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 1020426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 102139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmittstatic int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, 102239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_req, 102339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_resp, 102439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt int max_sbals) 1025c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 102639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(req); 102739eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt u32 feat = req->adapter->adapter_features; 1028c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 1029c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 103039eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { 1031426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt if (!zfcp_fsf_one_sbal(sg_req) || !zfcp_fsf_one_sbal(sg_resp)) 103239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return -EOPNOTSUPP; 103339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 1034426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); 1035426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return 0; 1036426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt } 1037426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 1038426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt /* use single, unchained SBAL if it can hold the request */ 1039426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt if (zfcp_fsf_one_sbal(sg_req) && zfcp_fsf_one_sbal(sg_resp)) { 1040426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); 104139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return 0; 104239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt } 104339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 1044c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ, 1045c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_req, max_sbals); 1046c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 10479072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 1048c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 1049c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = ZFCP_LAST_SBALE_PER_SBAL; 1050c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1051c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ, 1052c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_resp, max_sbals); 1053c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 10549072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 1055c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.resp_buf_length = bytes; 1056c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 1062c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 1063c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 1064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: if non-null the Generic Service request sent within ERP 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1066c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool, 1067c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_erp_action *erp_action) 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10695ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = ct->wka_port; 10705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_adapter *adapter = wka_port->adapter; 1071c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1072c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10740406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1075c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1076c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1078c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_GENERIC, 1079c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, pool); 1080025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1081c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1082c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10833f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 10843f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 108539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt ret = zfcp_fsf_setup_ct_els_sbals(req, ct->req, ct->resp, 108639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt FSF_MAX_SBALS_PER_REQ); 1087553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1090c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 10915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 1092c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.service_class = FSF_CLASS_3; 1093c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.timeout = ct->timeout; 1094c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1095c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1096c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_ct_request(req); 1097c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1098c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (erp_action) { 1099c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1100c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1101287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1102c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } else 1103c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1105c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1106c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1107c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (erp_action) 1114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 1115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 11160406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 1117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1122c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_els *send_els = req->data; 1123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 1133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_els_response(req); 1134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1137c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 114264b29a130901d5b8578e9f602cf2dae56aaff224Andreas Herrmann if (port && (send_els->ls_code != ZFCP_LS_ADISC)) 114364b29a130901d5b8578e9f602cf2dae56aaff224Andreas Herrmann zfcp_test_link(port); 1144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /*fall through */ 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1157dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt if (port) 1158dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt zfcp_fsf_access_denied_port(req, port); 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1168aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1170c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 1176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_els(struct zfcp_send_els *els) 1177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = els->adapter; 1180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 1181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11838fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt spin_lock_bh(&adapter->req_q_lock); 11848fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 1185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_ELS, 1187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, NULL); 1188025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 119339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt ret = zfcp_fsf_setup_ct_els_sbals(req, els->req, els->resp, 2); 119444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig 1195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 1199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->d_id = els->d_id; 1201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->service_class = FSF_CLASS_3; 1202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->timeout = 2 * R_A_TOV; 1203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_els_request(req); 1206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 12178fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt spin_unlock_bh(&adapter->req_q_lock); 1218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 122344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 122552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12280406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 122992cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 1230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, 1232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_QTCB_EXCHANGE_CONFIG_DATA, 1233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1235025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 124152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 124252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1245aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1246aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 12479eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1248aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1253287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 12600406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 126152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 126252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter, 1265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 126652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 126744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12710406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1273ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA, 1276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 0, NULL); 1277025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1279ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 128052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 128152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 128352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 128452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 1285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 128652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 128852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 128952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 129052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 129152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 129252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 129352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 129552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12980406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 1299553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1300058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 130152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1303ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 130452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1305ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1306ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1312aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 131744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 131952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1322553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 132352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13250406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 132692cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 1327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 1329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1331025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1334aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1335aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 133752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 133852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 134352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1344287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 134852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig erp_action->fsf_req = NULL; 134952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 13510406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 135252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 135352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 135452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 135552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 135652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 1358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 136052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter, 1362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 136352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 136444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 136752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1368553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 136952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 137052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 13710406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 137292cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 1373ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 0, 1376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig NULL); 1377025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1379ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 138252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1383c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 138452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 138652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 138752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 138852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 13920406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 1393ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1394553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1395058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 1396058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig 1397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 1400ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1401ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1402ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 1403ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fsf_plogi *plogi; 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1413a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann goto out; 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1419c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1423ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 14247ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig "remote port 0x%016Lx\n", 14257ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 14265ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_failed(port, "fsoph_1", req); 1427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1442d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1443d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1444d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els; 146139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (req->qtcb->bottom.support.els1_length >= 146239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt FSF_PLOGI_MIN_LEN) { 1463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (plogi->serv_param.wwpn != port->wwpn) 1464b98478d71b0fea6d35f96069612d92b76013589fChristof Schmitt port->d_id = 0; 1465c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 1466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig port->wwnn = plogi->serv_param.wwnn; 1467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1475a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann 1476a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermannout: 1477a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann zfcp_port_put(port); 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 148744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1490a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann struct zfcp_port *port = erp_action->port; 1491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 14930406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, 1498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_QTCB_OPEN_PORT_WITH_DID, 1499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1501025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1511a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->qtcb->bottom.support.d_id = port->d_id; 1512a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->data = port; 1513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1515a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann zfcp_port_get(port); 1516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1517287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 1522a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann zfcp_port_put(port); 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 15250406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 153444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 15385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); 1539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 15445ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_port_status(port, "fscph_2", req, 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 155844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 15630406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT, 1568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1570025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1571c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1573c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1575c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1579c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1585287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1591c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 15920406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15965ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) 15975ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 15985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = req->data; 15995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 16005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16015ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { 16025ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 16035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16055ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig switch (header->fsf_status) { 16075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 16085ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig dev_warn(&req->adapter->ccw_device->dev, 16095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig "Opening WKA port 0x%x failed\n", wka_port->d_id); 1610dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 16115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 16125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1613dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 16145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ACCESS_DENIED: 16155ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 16165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig break; 16175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_GOOD: 16185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->handle = header->port_handle; 161927f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig /* fall through */ 162027f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig case FSF_PORT_ALREADY_OPEN: 16215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_ONLINE; 16225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 16245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16265ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16275ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_open_wka_port - create and send open wka-port request 16295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * @wka_port: pointer to struct zfcp_wka_port 16305ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16315ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 16325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligint zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port) 16335ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 16355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_adapter *adapter = wka_port->adapter; 16365ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16375ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16390406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 16405ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 16415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16425ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req = zfcp_fsf_req_create(adapter, 16445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig FSF_QTCB_OPEN_PORT_WITH_DID, 16455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig ZFCP_REQ_AUTO_CLEANUP, 16465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig adapter->pool.fsf_req_erp); 16475ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16485ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16495ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16505ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale = zfcp_qdio_sbale_req(req); 16535ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 16545ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 16555ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_open_wka_port_handler; 16575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->bottom.support.d_id = wka_port->d_id; 16585ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16595ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16605ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16615ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16625ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16635ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16645ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 16650406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 16665ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16675ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16685ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16695ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) 16705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16715ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = req->data; 16725ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16735ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { 16745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16755ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); 16765ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16775ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16785ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 16795ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16805ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16815ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16825ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16835ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_close_wka_port - create and send close wka port request 16845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * @erp_action: pointer to struct zfcp_erp_action 16855ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16865ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 16875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligint zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port) 16885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16895ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 16905ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_adapter *adapter = wka_port->adapter; 16915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16925ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16935ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16940406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 16955ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 16965ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16975ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT, 16995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig ZFCP_REQ_AUTO_CLEANUP, 17005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig adapter->pool.fsf_req_erp); 17015ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 17025ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 17035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 17045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 17055ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale = zfcp_qdio_sbale_req(req); 17075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 17085ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 17095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17105ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_close_wka_port_handler; 17115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 17125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 17135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 17155ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 17165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 17175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 17185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 17190406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 17205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 17215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 17225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1723c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1725c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1726c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1729c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1730a5b11dda12ed7e3a79180b10ad6209a40a02989fChristof Schmitt return; 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 17345ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); 1735c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 17415c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 17425c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 17435c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 17445c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt list_for_each_entry(unit, &port->unit_list_head, list) 17455c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 17465c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 1747dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig zfcp_erp_port_boxed(port, "fscpph2", req); 1748dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1749dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig ZFCP_STATUS_FSFREQ_RETRY; 1750dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry(unit, &port->unit_list_head, list) 1767c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1768c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 178044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1782c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 17850406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1786c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1789c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PHYSICAL_PORT, 1790c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1792025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 1798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 1799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1807287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 18091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1810c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 18140406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1821c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1826aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 182944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1832b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 18405ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); 1841c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1847553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 18505ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsouh_2", req); 1851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1856553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1857ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1858ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 18597ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18607ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn, 1861ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1862ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1864553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1865553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 18665ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsouh_3", req); 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1869c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1872c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1873ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1874ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 18757ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18767ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18775ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_4", req); 1878c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1879c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1880c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 188565a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 1886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1888c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1896aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1897aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1898aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 18996fcf41d1d8796f41b893754324704e23971c2ea1Christof Schmitt !zfcp_ccw_priv_sch(adapter)) { 1900aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1901aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1902aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1903aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1904aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 19061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1913ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1914ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 19157ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19167ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1920c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1921ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1922ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1923ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 19247ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19257ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19265ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_5", req); 1927c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19285ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1931ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1932ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 193327c3f0a6e4521ba0ff6e76da54969f0bf430f53aChristof Schmitt "0x%016Lx)\n", 19347ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19357ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19365ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_7", req); 1937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); 19391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1945c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 195244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1953c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1955c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 19570406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1961c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_OPEN_LUN, 1962c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1963c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1964025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1965c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1966c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1968c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1969c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1973c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1974c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 1975c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 1976c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1977c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1978c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1979c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1980c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 1981c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 1982c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1983287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1984c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 19851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1986c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 19871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1989c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 19900406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1994c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1996c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1998c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 199944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2001c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 20035ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); 2004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 20075ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); 2008c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 20115ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fscuh_3", req); 2012c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2013c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 2016c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 201865a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 2019c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 2021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 2033c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 2034c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 203844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2039c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 2040c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2041c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 20421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20430406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 2044c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2046c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_LUN, 2047c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 2048c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 2049025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2050c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2051c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2052c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2054c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2055c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 20571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2058c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 2059c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 2060c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 2061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 2062c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 2063c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 2064fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 2065287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 2066c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2067c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 2068c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2069c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 2070c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2071c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 20720406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 2073c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 20741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2076c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 2077c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2078c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 2079c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 2080c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 2081c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 2082c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2083c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_req_latency(struct zfcp_fsf_req *req) 2084c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2085c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct fsf_qual_latency_info *lat_inf; 2086c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct latency_cont *lat; 2087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 2088c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2089c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_inf = &req->qtcb->prefix.prot_status_qual.latency_info; 2090c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2091c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->bottom.io.data_direction) { 2092c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_READ: 2093c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.read; 2094c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2095c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_WRITE: 2096c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.write; 2097c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2098c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_CMND: 2099c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.cmd; 2100c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2101c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt default: 2102c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt return; 2103c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt } 2104c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 210549f0f01c9966639f8fd7ce784a412e22057d9f2aChristof Schmitt spin_lock(&unit->latencies.lock); 2106c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_inf->channel_lat); 2107c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_inf->fabric_lat); 2108c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat->counter++; 210949f0f01c9966639f8fd7ce784a412e22057d9f2aChristof Schmitt spin_unlock(&unit->latencies.lock); 21101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21120997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#ifdef CONFIG_BLK_DEV_IO_TRACE 21130997f1c5fec0b540784611036d458a84a1f7029aStefan Rasplstatic void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req) 21140997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl{ 21150997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct fsf_qual_latency_info *lat_inf; 21160997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct scsi_cmnd *scsi_cmnd = (struct scsi_cmnd *)fsf_req->data; 21170997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct request *req = scsi_cmnd->request; 21180997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct zfcp_blk_drv_data trace; 21190997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl int ticks = fsf_req->adapter->timer_ticks; 21200997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 21210997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags = 0; 21220997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.magic = ZFCP_BLK_DRV_DATA_MAGIC; 21230997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl if (fsf_req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) { 21240997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags |= ZFCP_BLK_LAT_VALID; 21250997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl lat_inf = &fsf_req->qtcb->prefix.prot_status_qual.latency_info; 21260997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.channel_lat = lat_inf->channel_lat * ticks; 21270997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.fabric_lat = lat_inf->fabric_lat * ticks; 21280997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl } 21290997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl if (fsf_req->status & ZFCP_STATUS_FSFREQ_ERROR) 21300997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags |= ZFCP_BLK_REQ_ERROR; 21310997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.inb_usage = fsf_req->qdio_inb_usage; 21320997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.outb_usage = fsf_req->qdio_outb_usage; 21330997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 21340997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl blk_add_driver_data(req->q, req, &trace, sizeof(trace)); 21350997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 21360997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#else 21370997f1c5fec0b540784611036d458a84a1f7029aStefan Rasplstatic inline void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req) 21380997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl{ 21390997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 21400997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#endif 21410997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21440ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig struct scsi_cmnd *scpnt; 21451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 2146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 21471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 sns_len; 2148f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 21501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2151c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 2152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 21530ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig scpnt = req->data; 21540ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig if (unlikely(!scpnt)) { 21550ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21560ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig return; 21570ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig } 21580ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig 2159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) { 2160feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_SOFT_ERROR); 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 2165feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2169feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_msg_byte(scpnt, COMMAND_COMPLETE); 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->result |= fcp_rsp_iu->scsi_status; 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) 2174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_latency(req); 2175c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 21760997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl zfcp_fsf_trace_latency(req); 21770997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_rsp_len_valid)) { 2179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fcp_rsp_info[3] == RSP_CODE_GOOD) 2180feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_OK); 2181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2182feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21836f71d9bc025b02a8cbc2be83b0226a7043a507a5<jejb@titanic.il.steeleye.com> goto skip_fsfstatus; 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_sns_len_valid)) { 2188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sns_len = FSF_FCP_RSP_SIZE - sizeof(struct fcp_rsp_iu) + 2189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_rsp_iu->fcp_rsp_len; 21901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, (u32) SCSI_SENSE_BUFFERSIZE); 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, fcp_rsp_iu->fcp_sns_len); 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21939d058ecfd444d247b7448e0ef44647514d91a4f2FUJITA Tomonori memcpy(scpnt->sense_buffer, 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds zfcp_get_fcp_sns_info_ptr(fcp_rsp_iu), sns_len); 21951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_resid_under)) { 21987936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scsi_set_resid(scpnt, fcp_rsp_iu->fcp_resid); 21997936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori if (scsi_bufflen(scpnt) - scsi_get_resid(scpnt) < 22007936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scpnt->underflow) 2201feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 22048a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin if (scpnt->result != 0) 2205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("erro", 3, req->adapter, scpnt, req); 22068a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else if (scpnt->retries > 0) 2207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("retr", 4, req->adapter, scpnt, req); 22088a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else 2209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("norm", 6, req->adapter, scpnt, req); 22101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 22121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 22131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 22141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 22151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 22161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 22171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 22201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 22231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 2225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 2226f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 22271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if ((fcp_rsp_info[3] != RSP_CODE_GOOD) || 2229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 22461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 22505ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); 2251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 22555ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); 2256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 22601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2266ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2267ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 22697ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22707ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22715ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", 22725ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2277ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2278ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 22807ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22817ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22825ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", 22835ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 22875ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fssfch5", req); 2288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 22925ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fssfch6", req); 2293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 2299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_test_link(unit->port); 2300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 23011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 23021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23137ba58c9cc16d296290fe645acb11db2b01276544Swen Schilligstatic void zfcp_set_fcp_dl(struct fcp_cmnd_iu *fcp_cmd, u32 fcp_dl) 23147ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig{ 23157ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig u32 *fcp_dl_ptr; 23167ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig 23177ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig /* 23187ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * fcp_dl_addr = start address of fcp_cmnd structure + 23197ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * size of fixed part + size of dynamically sized add_dcp_cdb field 23207ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * SEE FCP-2 documentation 23217ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig */ 23227ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig fcp_dl_ptr = (u32 *) ((unsigned char *) &fcp_cmd[1] + 23237ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (fcp_cmd->add_fcp_cdb_length << 2)); 23247ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig *fcp_dl_ptr = fcp_dl; 23257ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig} 23267ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig 2327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 23311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 233263caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittint zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, 233363caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct scsi_cmnd *scsi_cmnd) 23341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 2337bc90c8632f63cd94246e3fb6f1b6d7ecba48f1a0Christof Schmitt unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; 2338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 233963caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 23401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 23441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23450406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock(&adapter->req_q_lock); 23468fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt if (atomic_read(&adapter->req_q.count) <= 0) { 23478fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt atomic_inc(&adapter->qdio_outb_full); 2348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23498fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt } 235063caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, 235163caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt ZFCP_REQ_AUTO_CLEANUP, 2352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_scsi); 2353025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_get(unit); 2359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &(req->qtcb->bottom.io.fcp_cmnd); 2369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in FCP_CMND IU 2375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 23791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->rddata = 1; 2383c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 2386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_WRITE; 2387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->wddata = 1; 23881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 2390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely((scsi_cmnd->device->simple_tags) || 2394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ((atomic_read(&unit->status) & ZFCP_STATUS_UNIT_READONLY) && 2395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (atomic_read(&unit->status) & ZFCP_STATUS_UNIT_SHARED)))) 2396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = SIMPLE_Q; 2397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = UNTAGGED; 23991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(scsi_cmnd->cmd_len > FCP_CDB_LENGTH)) 2401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->add_fcp_cdb_length = 2402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (scsi_cmnd->cmd_len - FCP_CDB_LENGTH) >> 2; 24031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fcp_cmnd_iu->fcp_cdb, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); 240545633fdc9615f9fd2a0ae18e301562298b15abf3Christof Schmitt 2406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 24077ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig fcp_cmnd_iu->add_fcp_cdb_length + sizeof(u32); 24081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig real_bytes = zfcp_qdio_sbals_from_sg(req, sbtype, 2410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_sglist(scsi_cmnd), 2411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(real_bytes < 0)) { 2413bc90c8632f63cd94246e3fb6f1b6d7ecba48f1a0Christof Schmitt if (req->sbal_number >= FSF_MAX_SBALS_PER_REQ) { 2414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 2415ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Oversize data package, unit 0x%016Lx " 2416ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "on port 0x%016Lx closed\n", 24177ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 24187ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 24195ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req); 2420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EINVAL; 2421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 24231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_set_fcp_dl(fcp_cmnd_iu, real_bytes); 24261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 24301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2435c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 24380406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock(&adapter->req_q_lock); 2439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 24401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 24471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 244863caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) 24491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 245044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2451c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 245363caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 24541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2455c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2457c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 24581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 245992cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 246092cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 2461c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 246263caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, 0, 2463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_scsi); 2464633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 2465633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 2466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2467633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 24681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2470c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 24777ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig sizeof(u32); 2478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE; 2481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 24821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &req->qtcb->bottom.io.fcp_cmnd; 2484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_management_flags = tm_flags; 24861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 249492cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 2495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 24971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 25001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 25071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 251144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2523c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2527c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25300406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 2531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 2532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 25331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, fsf_cfdc->command, 0, NULL); 2535025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 25411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= direction; 25448a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 25488a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, direction, fsf_cfdc->sg, 2550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 25590406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 25608a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2562058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 2563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 25641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 25661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2567bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2568bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 2569bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO 2570bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 2571bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @sbal_idx: response queue index of SBAL to be processed 2572bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2573bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligvoid zfcp_fsf_reqid_check(struct zfcp_adapter *adapter, int sbal_idx) 2574bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 2575bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct qdio_buffer *sbal = adapter->resp_q.sbal[sbal_idx]; 2576bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct qdio_buffer_element *sbale; 2577bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *fsf_req; 2578bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned long flags, req_id; 2579bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig int idx; 2580bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2581bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { 2582bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2583bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig sbale = &sbal->element[idx]; 2584bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id = (unsigned long) sbale->addr; 2585bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_lock_irqsave(&adapter->req_list_lock, flags); 2586bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig fsf_req = zfcp_reqlist_find(adapter, req_id); 2587bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2588bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (!fsf_req) 2589bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig /* 2590bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Unknown request means that we have potentially memory 2591bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * corruption and must stop the machine immediately. 2592bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2593bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig panic("error: unknown req_id (%lx) on adapter %s.\n", 2594bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id, dev_name(&adapter->ccw_device->dev)); 2595bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2596bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&fsf_req->list); 2597bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_unlock_irqrestore(&adapter->req_list_lock, flags); 2598bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2599bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig fsf_req->sbal_response = sbal_idx; 2600bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig fsf_req->qdio_inb_usage = atomic_read(&adapter->resp_q.count); 2601bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(fsf_req); 2602bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2603bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) 2604bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig break; 2605bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 2606bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 2607