zfcp_fsf.c revision bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078
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> 139d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt#include <scsi/fc/fc_els.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "zfcp_ext.h" 154318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt#include "zfcp_fc.h" 16dcd20e2316cdc333dfdee09649dbe3642eb30e75Christof Schmitt#include "zfcp_dbf.h" 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_request_timeout_handler(unsigned long data) 19287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 20287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; 215ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 225ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsrth_1", NULL); 23287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 24287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 25287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, 26287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt unsigned long timeout) 27287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 28287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_fsf_request_timeout_handler; 29287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->adapter; 30287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + timeout; 31287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 32287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 33287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 34287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) 35287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 36287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt BUG_ON(!fsf_req->erp_action); 37287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_erp_timeout_handler; 38287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->erp_action; 39287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + 30 * HZ; 40287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 41287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 42287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* association between FSF command and FSF QTCB type */ 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 fsf_qtcb_type[] = { 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 60553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) 61553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 62c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u16 subtable = table >> 16; 63553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt u16 rule = table & 0xffff; 64ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; 65553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 66ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt if (subtable && subtable < ARRAY_SIZE(act_type)) 67553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 68ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied according to ACT rule type %s, " 69ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "rule %d\n", act_type[subtable], rule); 70553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 71553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 72553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, 73553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_port *port) 74553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 75553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 76553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 77ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to port 0x%016Lx\n", 787ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 79553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 80553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 815ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_access_denied(port, "fspad_1", req); 82553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 83553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 84553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 85553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, 86553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_unit *unit) 87553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 88553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 89553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 90ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to unit 0x%016Lx on port 0x%016Lx\n", 917ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 927ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 93553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 94553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 955ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsuad_1", req); 96553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 97553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 98553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 99553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) 100553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 101ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_err(&req->adapter->ccw_device->dev, "FCP device not " 102ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "operational because of an unsupported FC class\n"); 1035ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); 104553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 105553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 106553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 107c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_free - free memory used by fsf request 109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: pointer to struct zfcp_fsf_req 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_free(struct zfcp_fsf_req *req) 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->pool)) { 114a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 115a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); 116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(req, req->pool); 117dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 118dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 119dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens 120a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 121a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb); 122a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kfree(req); 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 127ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig unsigned long flags; 128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 130c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port; 131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int d_id = sr_buf->d_id & ZFCP_DID_MASK; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 133ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock_irqsave(&adapter->port_list_lock, flags); 134ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(port, &adapter->port_list, list) 135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (port->d_id == d_id) { 1365ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(port, 0, "fssrpc1", req); 137ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig break; 138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 139ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock_irqrestore(&adapter->port_list_lock, flags); 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1425ffd51a5e495a2a002efd523aef0001912b080bdSwen Schilligstatic void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id, 143c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *link_down) 144aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin{ 145c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 146698ec01635819c5ae60090bb4efcbeffc41642fbMartin Peschke 147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) 148ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin return; 149ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 150ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); 15170932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt 152a2fa0aede07c9488239dcac1eae58233181c355aChristof Schmitt zfcp_scsi_schedule_rports_block(adapter); 153ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!link_down) 1552f8f3ed5fc566700cf45d422f4cf1624bd123d93Andreas Herrmann goto out; 156ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 157aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin switch (link_down->error_code) { 158aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_LIGHT: 159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 160ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is no light signal from the local " 161ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel cable\n"); 162aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 163aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WRAP_PLUG: 164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 165ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is a wrap plug instead of a fibre " 166ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "channel cable\n"); 167aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 168aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP: 169c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 170ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent fibre channel node does not " 171ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "support FCP\n"); 172aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 173aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FIRMWARE_UPDATE: 174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 175ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device is suspended because of a " 176ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "firmware update\n"); 177553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt break; 178aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_INVALID_WWPN: 179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 180ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device detected a WWPN that is " 181ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "duplicate or not valid\n"); 182aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 183aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_NPIV_SUPPORT: 184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 185ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The fibre channel fabric does not support NPIV\n"); 186aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 187aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP_RESOURCES: 188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 189ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter cannot support more NPIV ports\n"); 190aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 191aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: 192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 193ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent switch cannot support " 194ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "more NPIV ports\n"); 195aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 196aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: 197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 198ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter could not log in to the " 199ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel fabric\n"); 200aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 201aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: 202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 203ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The WWPN assignment file on the FCP adapter " 204ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 205aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 206aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: 207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 208ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The mode table on the FCP adapter " 209ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 210aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 211aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: 212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 213ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "All NPIV ports on the FCP adapter have " 214ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "been assigned\n"); 215aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 216aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin default: 217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 218ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The link between the FCP adapter and " 219ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "the FC fabric is down\n"); 220aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_failed(adapter, id, req); 223aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin} 224aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *ldi = 229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (struct fsf_link_down_info *) &sr_buf->payload; 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: 2335ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi); 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FDISC_FAILED: 2365ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi); 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: 2395ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL); 240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig }; 241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) 244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 2495771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("dism", adapter->dbf, sr_buf); 250a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2555771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("read", adapter->dbf, sr_buf); 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_type) { 258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_PORT_CLOSED: 259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_port_closed(req); 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_INCOMING_ELS: 262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_incoming_els(req); 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SENSE_DATA_AVAIL: 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: 267ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_warn(&adapter->ccw_device->dev, 268ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The error threshold for checksum statistics " 269ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been exceeded\n"); 2705771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_berr(adapter->dbf, req); 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_DOWN: 273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_link_down(req); 274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_UP: 276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 277ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The local link has been restored\n"); 278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 2795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, 280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 2855ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fssrh_2", req); 286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_NOTIFICATION_LOST: 288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) 2895ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_3", 2905ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) 2929eae07ef6bb5988163d8bb82cd952905db47b721Swen Schillig queue_work(adapter->work_queue, &adapter->scan_work); 293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_CFDC_UPDATED: 2955ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); 296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: 298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = sr_buf->payload.word[0]; 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 302a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_inc(&adapter->stat_miss); 3064544683a4b1d4e65ccca8c736bac56a195a5206bSwen Schillig queue_work(adapter->work_queue, &adapter->stat_work); 307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) 310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_FCP_RSP_AVAILABLE: 313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RETRY_POSSIBLE: 315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_COMMAND_ABORTED: 318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTED; 319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RECOM: 321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 322ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter reported a problem " 323ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "that cannot be recovered\n"); 3245ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); 325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* all non-return stats set FSFREQ_ERROR*/ 328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_UNKNOWN_COMMAND: 338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 339ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter does not recognize the command 0x%x\n", 340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command); 3415ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); 342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_qual_eval(req); 346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) 351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3565771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_response(req); 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */ 361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->prefix.prot_status) { 365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_GOOD: 366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_FSF_STATUS_PRESENTED: 367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_QTCB_VERSION_ERROR: 369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 370ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "QTCB version 0x%x not supported by FCP adapter " 371ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, 372ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt psq->word[0], psq->word[1]); 3735ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); 374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_ERROR_STATE: 376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_SEQ_NUMB_ERROR: 3775ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); 378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_RETRY; 379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_UNSUPP_QTCB_TYPE: 381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 382ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The QTCB type is not supported by the FCP adapter\n"); 3835ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); 384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_HOST_CONNECTION_INITIALIZING: 386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, 387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_DUPLICATE_REQUEST_ID: 390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 391ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%Lx is an ambiguous request identifier\n", 392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (unsigned long long)qtcb->bottom.support.req_handle); 3935ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); 394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_LINK_DOWN: 3965ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fspse_5", 3975ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig &psq->link_down_info); 398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* FIXME: reopening adapter now? better wait for link up */ 3995ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); 400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_REEST_QUEUE: 402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 4035ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL, 404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 4085ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 4095ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fspse_8", req); 410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 413ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%x is not a valid transfer protocol status\n", 414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->prefix.prot_status); 4155ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); 416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 417c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_complete - process completion of a FSF request 422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: The FSF request that has been completed. 423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * When a request has been completed either from the FCP adapter, 425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * or it has been dismissed due to a queue shutdown, this function 426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * is called to process the completion status and trigger further 427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * events related to the FSF request. 428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 429bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligstatic void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { 432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_handler(req); 433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_protstatus_eval(req); 438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_eval(req); 439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler(req); 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->erp_action) 442287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_notify(req->erp_action, 0); 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) 445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 447058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig complete(&req->completion); 448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 450bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 451bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_req_dismiss_all - dismiss all fsf requests 452bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 453bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * 454bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Never ever call this without shutting down the adapter first. 455bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Otherwise the adapter would continue using and corrupting s390 storage. 456bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Included BUG_ON() call to ensure this is done. 457bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * ERP is supposed to be the only user of this function. 458bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 459bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligvoid zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) 460bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 461bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *req, *tmp; 462bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned long flags; 463bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig LIST_HEAD(remove_queue); 464bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned int i; 465bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 466bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); 467bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_lock_irqsave(&adapter->req_list_lock, flags); 468bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (i = 0; i < REQUEST_LIST_SIZE; i++) 469bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_splice_init(&adapter->req_list[i], &remove_queue); 470bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_unlock_irqrestore(&adapter->req_list_lock, flags); 471bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 472bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_for_each_entry_safe(req, tmp, &remove_queue, list) { 473bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&req->list); 474bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; 475bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(req); 476bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 477bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 478bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) 480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 4819d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config; 482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 4849d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fc_els_flogi *nsp, *plogi; 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4869d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt /* adjust pointers for missing command code */ 4879d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param 4889d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt - sizeof(u32)); 4899d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload 4909d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt - sizeof(u32)); 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 4959d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt fc_host_port_name(shost) = nsp->fl_wwpn; 4969d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt fc_host_node_name(shost) = nsp->fl_wwnn; 497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = bottom->s_id & ZFCP_DID_MASK; 498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = bottom->fc_link_speed; 499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; 500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = bottom->adapter_type; 502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->timer_ticks = bottom->timer_interval; 503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = bottom->peer_d_id & ZFCP_DID_MASK; 5109d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwpn = plogi->fl_wwpn; 5119d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwnn = plogi->fl_wwnn; 512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 519dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 522ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 523ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 5245ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); 525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 527c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 532553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 533553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 537553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5478a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 555ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 556ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 557ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 5585ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); 559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 573c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5755ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsecdh2", 576c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 578c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 5795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); 580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 587c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 589c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 591c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 592c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 593ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 594ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5955ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); 596c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 597c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 598c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 599c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 600ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 601ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 6025ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); 603c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 604c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 606c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 607c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 608c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 609c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 610c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 612c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 613c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 6149eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 6150282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { 616c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 6170282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6180282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt } else 619c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 620c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 621c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 622c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 624c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 626c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 636c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 6375ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsepdh1", 638c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 639aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 641c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 642d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 643564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic int zfcp_fsf_sbal_check(struct zfcp_qdio *qdio) 644c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 645564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio_queue *req_q = &qdio->req_q; 646c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 647564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 6487001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann if (atomic_read(&req_q->count)) 6497001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann return 1; 650564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 6517001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann return 0; 6527001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann} 6537001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann 654564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic int zfcp_fsf_req_sbal_get(struct zfcp_qdio *qdio) 6557001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann{ 656564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 6577001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann long ret; 658dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt 659564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 660564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig ret = wait_event_interruptible_timeout(qdio->req_q_wq, 661564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig zfcp_fsf_sbal_check(qdio), 5 * HZ); 662c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret > 0) 663c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 664cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt if (!ret) { 665564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 666cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt /* assume hanging outbound queue, try queue recovery */ 667cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL); 668cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt } 6697001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann 670564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 671c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 672c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 673c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 674a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) 675c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 676c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 677a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 678a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 679a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 680a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 681a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = kmalloc(sizeof(*req), GFP_ATOMIC); 682a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 683a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req)) 684c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 685a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 686c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 68788f2a977870af655296a682fe2a58c822cd25bb2Christof Schmitt req->pool = pool; 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 689c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 691a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) 692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 693a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct fsf_qtcb *qtcb; 694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 695c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 698a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); 699a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 700c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 701c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 702c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 703c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 704a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return qtcb; 705c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 706c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 707564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, 70809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig u32 fsf_cmd, mempool_t *pool) 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 71044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 711564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio_queue *req_q = &qdio->req_q; 712564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 713a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 7161e9b16430ff4fd09408a74342d6b8338228e2f70Christof Schmitt return ERR_PTR(-ENOMEM); 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 722c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 723058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig init_completion(&req->completion); 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 725c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 726c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 72752bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt req->req_id = adapter->req_no; 72842428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_number = 1; 72942428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_first = req_q->first; 73042428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_last = req_q->first; 73142428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = 1; 732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 733564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 734c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].addr = (void *) req->req_id; 735c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_COMMAND; 736c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 737a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { 738a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 739a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); 740a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 741a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(NULL); 742a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 743a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req->qtcb)) { 744a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig zfcp_fsf_req_free(req); 745a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return ERR_PTR(-ENOMEM); 746a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig } 747a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 748564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->seq_no = adapter->fsf_req_seq_no; 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].addr = (void *) req->qtcb; 758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].length = sizeof(struct fsf_qtcb); 759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { 762c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 763c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 764c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 765951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 766c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 769c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 771c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 772564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 773135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann unsigned long flags; 774135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann int idx; 775135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann int with_qtcb = (req->qtcb != NULL); 776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* put allocated FSF request into hash table */ 77845316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_lock_irqsave(&adapter->req_list_lock, flags); 779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig idx = zfcp_reqlist_hash(req->req_id); 780c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_add_tail(&req->list, &adapter->req_list[idx]); 78145316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_unlock_irqrestore(&adapter->req_list_lock, flags); 782c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 783564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->queue_req.qdio_outb_usage = atomic_read(&qdio->req_q.count); 784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 785564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_qdio_send(qdio, &req->queue_req)) { 786c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 7873765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_lock_irqsave(&adapter->req_list_lock, flags); 7883765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt /* lookup request again, list might have changed */ 7893765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt if (zfcp_reqlist_find_safe(adapter, req)) 7903765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt zfcp_reqlist_remove(adapter, req); 7913765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_unlock_irqrestore(&adapter->req_list_lock, flags); 7925ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); 793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 797135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann if (with_qtcb) 798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 79952bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt adapter->req_no++; 800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 810564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_status_read(struct zfcp_qdio *qdio) 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 812564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 81544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 816c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 818564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 819564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 821c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 822564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 823a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.status_read_req); 824025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 829564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; 83142428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = 2; 832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 833a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); 834c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 835c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 836c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 837c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 838c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 840564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_curr(qdio, &req->queue_req); 841c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->addr = (void *) sr_buf; 842c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->length = sizeof(*sr_buf); 843059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 844c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 848c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 851a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 853c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 8545771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL); 855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 856564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 865c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 866c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 868c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 870c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8715ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 8725ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsafch1", req); 873c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 877c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8785ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); 879c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 883c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 8865ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsafch3", req); 887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 888c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 8915ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fsafch4", req); 892c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 893c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 896c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 8986f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 899dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 901c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 906c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 913c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 914c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 918c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 91963caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_unit *unit) 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 92144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 922c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 923564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 9248a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 925564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 926564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 927c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 928564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, 929564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_abort); 930633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 931633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 933633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 9342abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 935c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 939564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 941c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 943c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 944c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 945c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 952c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 953c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 955c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 957564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 961c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 963c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 964c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_ct *send_ct = req->data; 965c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = -EINVAL; 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 969c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 9745771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_ct_response(req); 975c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = 0; 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 978c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 984c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 991c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 992c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 994c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 9955ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); 996dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 997c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 1002c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1007c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (send_ct->handler) 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_ct->handler(send_ct->handler_data); 1009c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1011426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmittstatic void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale, 1012426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_req, 1013426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_resp) 1014426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 1015426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ; 1016426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[2].addr = sg_virt(sg_req); 1017426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[2].length = sg_req->length; 1018426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].addr = sg_virt(sg_resp); 1019426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].length = sg_resp->length; 1020426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY; 1021426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 1022426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 1023426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmittstatic int zfcp_fsf_one_sbal(struct scatterlist *sg) 1024426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 1025426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return sg_is_last(sg) && sg->length <= PAGE_SIZE; 1026426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 1027426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 102839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmittstatic int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, 102939eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_req, 103039eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_resp, 103139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt int max_sbals) 1032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 103342428f747a8a0db9c6de03e105932316defad65dSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1034564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(adapter->qdio, 103542428f747a8a0db9c6de03e105932316defad65dSwen Schillig &req->queue_req); 103642428f747a8a0db9c6de03e105932316defad65dSwen Schillig u32 feat = adapter->adapter_features; 1037c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 1038c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 103939eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { 1040426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt if (!zfcp_fsf_one_sbal(sg_req) || !zfcp_fsf_one_sbal(sg_resp)) 104139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return -EOPNOTSUPP; 104239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 1043426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); 1044426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return 0; 1045426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt } 1046426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 1047426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt /* use single, unchained SBAL if it can hold the request */ 1048426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt if (zfcp_fsf_one_sbal(sg_req) && zfcp_fsf_one_sbal(sg_resp)) { 1049426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); 105039eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return 0; 105139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt } 105239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 1053564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req, 105442428f747a8a0db9c6de03e105932316defad65dSwen Schillig SBAL_FLAGS0_TYPE_WRITE_READ, 1055c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_req, max_sbals); 1056c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 10579072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 1058c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 105942428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = ZFCP_LAST_SBALE_PER_SBAL; 1060c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1061564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req, 106242428f747a8a0db9c6de03e105932316defad65dSwen Schillig SBAL_FLAGS0_TYPE_WRITE_READ, 1063c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_resp, max_sbals); 1064b1a58985853574346f1518531bdd82069501b317Christof Schmitt req->qtcb->bottom.support.resp_buf_length = bytes; 1065c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 10669072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 106798fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt 1068b1a58985853574346f1518531bdd82069501b317Christof Schmitt return 0; 1069b1a58985853574346f1518531bdd82069501b317Christof Schmitt} 1070b1a58985853574346f1518531bdd82069501b317Christof Schmitt 1071b1a58985853574346f1518531bdd82069501b317Christof Schmittstatic int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, 1072b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_req, 1073b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_resp, 1074b1a58985853574346f1518531bdd82069501b317Christof Schmitt int max_sbals) 1075b1a58985853574346f1518531bdd82069501b317Christof Schmitt{ 1076b1a58985853574346f1518531bdd82069501b317Christof Schmitt int ret; 10779d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt unsigned int fcp_chan_timeout; 1078b1a58985853574346f1518531bdd82069501b317Christof Schmitt 1079b1a58985853574346f1518531bdd82069501b317Christof Schmitt ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp, max_sbals); 1080b1a58985853574346f1518531bdd82069501b317Christof Schmitt if (ret) 1081b1a58985853574346f1518531bdd82069501b317Christof Schmitt return ret; 1082b1a58985853574346f1518531bdd82069501b317Christof Schmitt 108398fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt /* common settings for ct/gs and els requests */ 10849d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt fcp_chan_timeout = 2 * FC_DEF_R_A_TOV / 1000; 108598fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.service_class = FSF_CLASS_3; 10869d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt req->qtcb->bottom.support.timeout = fcp_chan_timeout; 10879d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt zfcp_fsf_start_timer(req, (fcp_chan_timeout + 10) * HZ); 1088c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1089c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1093c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 1094c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 1095c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1097799b76d09aeee558d18c1f5b93e63f58f1d1fc11Christof Schmittint zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool) 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1099bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = ct->wka_port; 1100564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 1101c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1102c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1104564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1105564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1106c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1108564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, pool); 110909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1110025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11133f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 11143f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 111509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1116b1a58985853574346f1518531bdd82069501b317Christof Schmitt ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, 1117b1a58985853574346f1518531bdd82069501b317Christof Schmitt FSF_MAX_SBALS_PER_REQ); 1118553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1121c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 11225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 1123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11255771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_ct_request(req); 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1136564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1137c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1140c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_els *send_els = req->data; 1143c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 11535771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_response(req); 1154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 11629d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt if (port && (send_els->ls_code != ELS_ADISC)) 11636f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(port); 1164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /*fall through */ 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1177dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt if (port) 1178dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt zfcp_fsf_access_denied_port(req, port); 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1188aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 1196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_els(struct zfcp_send_els *els) 1197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1199564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = els->adapter->qdio; 1200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1202564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1203564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 120509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1206564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, NULL); 120709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1208025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 121309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1214b1a58985853574346f1518531bdd82069501b317Christof Schmitt ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, 2); 121544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig 1216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 121998fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.d_id = els->d_id; 1220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12235771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_request(req); 1224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1234564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 124044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1242564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1245564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1246564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 124809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1249564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 1250564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 125109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1252025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 125709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1258564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 125952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 126052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1263aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1264aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 12659eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1266aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1271287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1278564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 127952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 128052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1282564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, 1283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 128452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 128544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1289564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1290564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1291ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1293564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, NULL); 129409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1295025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1297ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 129852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 129952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1300564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 130152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 130252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 1303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 130452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 130652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 130752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 130852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 130952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 131052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 131152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 131352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1316564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1317553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1318058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 131952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1321ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 132252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1323ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1324564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1330aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1335564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 133644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1340564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 134152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1343564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1344564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 134609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1347564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 1348564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 134909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1350025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1353aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1354aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 135509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1356564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 135752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 135852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 136352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1364287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 136852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig erp_action->fsf_req = NULL; 136952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1371564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 137252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 137352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 137452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 137552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 137652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1377564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig * @qdio: pointer to struct zfcp_qdio 1378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 138052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1381564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, 1382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 138352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 138444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 138752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1388564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 138952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 139052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1391564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1392564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1393ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1395564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, NULL); 139609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1397025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1399ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 140252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 140452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1405564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 140652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 140752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 140852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1412564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1413ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1414553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1415058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 1416058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig 1417c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 1420ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1421ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1422564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1423ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 14309d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fc_els_flogi *plogi; 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1433a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann goto out; 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1443ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 14447ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig "remote port 0x%016Lx\n", 14457ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 14465ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_failed(port, "fsoph_1", req); 1447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1454c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1462d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1463d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1464d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14809d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; 148139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (req->qtcb->bottom.support.els1_length >= 14829d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt FSF_PLOGI_MIN_LEN) 1483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1489a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann 1490a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermannout: 1491f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig put_device(&port->sysfs_device); 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 150144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1502564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1503a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann struct zfcp_port *port = erp_action->port; 1504564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_fsf_req *req; 1505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1507564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1508564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1511564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 1512564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 151309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1514025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 151909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1520564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1525a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->qtcb->bottom.support.d_id = port->d_id; 1526a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->data = port; 1527c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1529f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig get_device(&port->sysfs_device); 1530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1531287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 1536f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig put_device(&port->sysfs_device); 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1539564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 154844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 15525ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); 1553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 15585ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_port_status(port, "fscph_2", req, 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 157244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1573564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1574c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1575c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1576c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1577564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1578564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1579c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1581564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 1582564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 158309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1584025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1587c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 158909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1590564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1594c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1595c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1596c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1597c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1598c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1599c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1600287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1601c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1603c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1606c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1607564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) 16125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1613bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 16145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 16155ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { 1617bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 16185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig switch (header->fsf_status) { 16225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 16235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig dev_warn(&req->adapter->ccw_device->dev, 16245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig "Opening WKA port 0x%x failed\n", wka_port->d_id); 1625dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 16265ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 16275ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1628dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 16295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ACCESS_DENIED: 1630bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 16315ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig break; 16325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_GOOD: 16335ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->handle = header->port_handle; 163427f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig /* fall through */ 163527f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig case FSF_PORT_ALREADY_OPEN: 1636bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; 16375ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 16395ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16405ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16425ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_open_wka_port - create and send open wka-port request 1644bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: pointer to struct zfcp_fc_wka_port 16455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1647bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) 16485ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16495ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 1650564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 16515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16535ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1654564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1655564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 16565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1658564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 1659564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 166009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 16615ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16625ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16635ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16645ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16655ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 166609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1667564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 16685ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 16695ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 16705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16715ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_open_wka_port_handler; 16725ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->bottom.support.d_id = wka_port->d_id; 16735ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16765ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16775ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16785ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16795ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1680564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 16815ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16825ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16835ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) 16855ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1686bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 16875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { 16895ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16905ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); 16915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16925ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1693bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 16945ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16955ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16965ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16975ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_close_wka_port - create and send close wka port request 1699bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: WKA port to open 17005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 17015ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1702bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) 17035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 17045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 1705564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 17065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 17075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 17085ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1709564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1710564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 17115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 17125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1713564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 1714564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 171509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 17165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 17175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 17185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 17195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 17205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 172109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1722564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 17235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 17245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 17255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17265ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_close_wka_port_handler; 17275ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 17285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 17295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17305ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 17315ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 17325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 17335ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 17345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1735564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 17365ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 17375ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 17385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1742c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1746a5b11dda12ed7e3a79180b10ad6209a40a02989fChristof Schmitt return; 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 17505ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); 1751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 17575c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 17585c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 17595c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1760ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock(&port->unit_list_lock); 1761ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(unit, &port->unit_list, list) 17625c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 17635c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 1764ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 1765dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig zfcp_erp_port_boxed(port, "fscpph2", req); 1766dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1767dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig ZFCP_STATUS_FSFREQ_RETRY; 1768dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1784ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock(&port->unit_list_lock); 1785ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(unit, &port->unit_list, list) 1786c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 1788ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 180044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1801564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1805564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1806564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1809564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, 1810564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 181109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1812025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 181709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1818564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 1819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 1820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1828287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1834c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1835564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1841c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1842c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1844c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1847aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 185044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1853b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 18615ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); 1862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1866c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1868553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 18715ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsouh_2", req); 1872c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1873c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1876c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1877553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1878ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1879ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 18807ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18817ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn, 1882ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1883ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1884c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1885553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1886553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 18875ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsouh_3", req); 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1893c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1894ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1895ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 18967ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18977ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18985ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_4", req); 1899c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1900c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1901c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 19066f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 1907c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 19161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1917aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1918aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1919aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 19206fcf41d1d8796f41b893754324704e23971c2ea1Christof Schmitt !zfcp_ccw_priv_sch(adapter)) { 1921aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1922aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1923aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1924aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1925aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1933c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1934ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1935ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 19367ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19377ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1941c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1942ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1943ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1944ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 19457ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19467ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19475ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_5", req); 1948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19495ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1952ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1953ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 195427c3f0a6e4521ba0ff6e76da54969f0bf430f53aChristof Schmitt "0x%016Lx)\n", 19557ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19567ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19575ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_7", req); 1958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19595ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1966c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1968c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1969c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1971c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 197344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1974c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1975564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 1976c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1977c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1978c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1979564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1980564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 19811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1983564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, 1984a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.erp_req); 198509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1986025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1987c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1988c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1989c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1990c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 199109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1992564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1996c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1997c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 1998c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 1999c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 2000c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 2001c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 2002c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2003c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 2004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 2005c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2006287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 2007c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 2009c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 20101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2012c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2013564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2017c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 20181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2019c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 202244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2024c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 20265ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); 2027c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 20305ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); 2031c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 20345ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fscuh_3", req); 2035c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 2039c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 20401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 20416f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 2042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 2044c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 20501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2055c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 2056c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 2057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 20581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2059c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 206144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2062564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 2063c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 20651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2066564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2067564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 20681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 206909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2070564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, 2071564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 207209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2073025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2074c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2075c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2076c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 20771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 207809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2079564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2080c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2083c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 2084c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 2085c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 2086c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 2087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 2088c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 2089fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 2090287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 2091c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2092c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 2093c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2094c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 2095c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2096c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2097564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2098c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 20991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2101c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 2102c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2103c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 2104c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 2105c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 2106c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 2107c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2108d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmittstatic void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) 2109c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2110d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct fsf_qual_latency_info *lat_in; 2111d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct latency_cont *lat = NULL; 2112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 2113d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct zfcp_blk_drv_data blktrc; 2114d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt int ticks = req->adapter->timer_ticks; 2115c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2116d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; 2117c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2118d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags = 0; 2119d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; 2120d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 2121d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_REQ_ERROR; 2122d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.inb_usage = req->queue_req.qdio_inb_usage; 2123d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.outb_usage = req->queue_req.qdio_outb_usage; 2124d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 2125d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) { 2126d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_LAT_VALID; 2127d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.channel_lat = lat_in->channel_lat * ticks; 2128d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.fabric_lat = lat_in->fabric_lat * ticks; 2129d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 2130d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt switch (req->qtcb->bottom.io.data_direction) { 2131d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_READ: 2132d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.read; 2133d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2134d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_WRITE: 2135d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.write; 2136d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2137d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_CMND: 2138d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.cmd; 2139d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2140d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2142d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (lat) { 2143d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_lock(&unit->latencies.lock); 2144d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); 2145d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); 2146d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat->counter++; 2147d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_unlock(&unit->latencies.lock); 2148d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 21490997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl } 21500997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2151d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, 2152d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt sizeof(blktrc)); 21530997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 21540997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 21561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21570ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig struct scsi_cmnd *scpnt; 21584318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 21591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 21601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 2162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 21630ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig scpnt = req->data; 21640ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig if (unlikely(!scpnt)) { 21650ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21660ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig return; 21670ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig } 21680ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig 2169c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) { 2170feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_SOFT_ERROR); 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 2175feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21794318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 21804318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2182d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_req_trace(req, scpnt); 21830997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 21858a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin if (scpnt->result != 0) 21865771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("erro", 3, req->adapter->dbf, scpnt, req); 21878a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else if (scpnt->retries > 0) 21885771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("retr", 4, req->adapter->dbf, scpnt, req); 21898a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else 21905771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("norm", 6, req->adapter->dbf, scpnt, req); 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 21951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 21991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 22011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22054318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 22064318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_rsp_info *rsp_info; 22071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22084318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 22094318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; 22104318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt 22114318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt if ((rsp_info->rsp_code != FCP_TMF_CMPL) || 2212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 22291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 22335ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); 2234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 22385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); 2239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 22431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2249ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2250ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 22527ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22537ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22545ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", 22555ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2260ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2261ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 22637ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22647ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22655ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", 22665ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 22705ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fssfch5", req); 2271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 22755ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fssfch6", req); 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 22826f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 2283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 22851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2292f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig put_device(&unit->sysfs_device); 2293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 22941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 23001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 230163caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittint zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, 230263caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct scsi_cmnd *scsi_cmnd) 23031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 23054318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2306bc90c8632f63cd94246e3fb6f1b6d7ecba48f1a0Christof Schmitt unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; 2307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 230863caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 2309564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 23101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 23141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2315564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock(&qdio->req_q_lock); 2316564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (atomic_read(&qdio->req_q.count) <= 0) { 2317564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 2318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23198fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt } 232009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2321564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 2322a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.scsi_req); 232309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2324025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 232909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2330f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig get_device(&unit->sysfs_device); 2331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 23374318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 23491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 2355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_WRITE; 23561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 2358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23614318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 23624318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); 23631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2364564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, sbtype, 2365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_sglist(scsi_cmnd), 2366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(real_bytes < 0)) { 236842428f747a8a0db9c6de03e105932316defad65dSwen Schillig if (req->queue_req.sbal_number >= FSF_MAX_SBALS_PER_REQ) { 2369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 2370ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Oversize data package, unit 0x%016Lx " 2371ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "on port 0x%016Lx closed\n", 23727ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 23737ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 23745ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req); 2375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EINVAL; 2376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2387f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig put_device(&unit->sysfs_device); 2388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2391564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock(&qdio->req_q_lock); 2392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 23931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 24001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 240163caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) 24021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 240344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 24054318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2406564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 24071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 24111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2412564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2413564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 2414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 241509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2416564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 2417564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_req); 241809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2419633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 2420633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 2421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2422633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 24231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2430c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 24314318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2433564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE; 2435c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 24361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24374318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 24384318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags); 24391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2447564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 24501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2451c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 24531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2455c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2457c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2459c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 24601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2461c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2462c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 24631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 246444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2465564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 2466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2470c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 24831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2484564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2485564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 2486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2488564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, NULL); 2489025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 24931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 24951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2496564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= direction; 24988a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 25028a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2503564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, 2504564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig direction, fsf_cfdc->sg, 2505564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig FSF_MAX_SBALS_PER_REQ); 2506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2514564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 25158a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2517058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 2518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 25191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 25211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2522bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2523bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 2524bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO 2525bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 2526bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @sbal_idx: response queue index of SBAL to be processed 2527bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2528564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligvoid zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) 2529bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 2530564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 2531564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct qdio_buffer *sbal = qdio->resp_q.sbal[sbal_idx]; 2532bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct qdio_buffer_element *sbale; 2533bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *fsf_req; 2534bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned long flags, req_id; 2535bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig int idx; 2536bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2537bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { 2538bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2539bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig sbale = &sbal->element[idx]; 2540bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id = (unsigned long) sbale->addr; 2541bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_lock_irqsave(&adapter->req_list_lock, flags); 2542bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig fsf_req = zfcp_reqlist_find(adapter, req_id); 2543bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2544bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (!fsf_req) 2545bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig /* 2546bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Unknown request means that we have potentially memory 2547bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * corruption and must stop the machine immediately. 2548bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2549bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig panic("error: unknown req_id (%lx) on adapter %s.\n", 2550bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id, dev_name(&adapter->ccw_device->dev)); 2551bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2552bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&fsf_req->list); 2553bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_unlock_irqrestore(&adapter->req_list_lock, flags); 2554bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 255542428f747a8a0db9c6de03e105932316defad65dSwen Schillig fsf_req->queue_req.sbal_response = sbal_idx; 255642428f747a8a0db9c6de03e105932316defad65dSwen Schillig fsf_req->queue_req.qdio_inb_usage = 2557564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_read(&qdio->resp_q.count); 2558bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(fsf_req); 2559bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2560bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) 2561bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig break; 2562bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 2563bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 2564