zfcp_fsf.c revision 4318e08c84e4916ac463002ffb7f9901ddb3c385
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * zfcp device driver 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * Implementation of FSF commands. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6a2fa0aede07c9488239dcac1eae58233181c355aChristof Schmitt * Copyright IBM Corporation 2002, 2009 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt#define KMSG_COMPONENT "zfcp" 10ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 11ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt 120997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#include <linux/blktrace_api.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "zfcp_ext.h" 144318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt#include "zfcp_fc.h" 15dcd20e2316cdc333dfdee09649dbe3642eb30e75Christof Schmitt#include "zfcp_dbf.h" 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_request_timeout_handler(unsigned long data) 18287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 19287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; 205ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 215ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsrth_1", NULL); 22287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 23287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 24287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, 25287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt unsigned long timeout) 26287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 27287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_fsf_request_timeout_handler; 28287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->adapter; 29287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + timeout; 30287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 31287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 32287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 33287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) 34287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 35287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt BUG_ON(!fsf_req->erp_action); 36287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_erp_timeout_handler; 37287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->erp_action; 38287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + 30 * HZ; 39287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 40287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 41287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* association between FSF command and FSF QTCB type */ 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 fsf_qtcb_type[] = { 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 59553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) 60553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 61c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u16 subtable = table >> 16; 62553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt u16 rule = table & 0xffff; 63ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; 64553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 65ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt if (subtable && subtable < ARRAY_SIZE(act_type)) 66553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 67ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied according to ACT rule type %s, " 68ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "rule %d\n", act_type[subtable], rule); 69553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 70553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 71553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, 72553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_port *port) 73553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 74553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 75553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 76ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to port 0x%016Lx\n", 777ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 78553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 79553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 805ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_access_denied(port, "fspad_1", req); 81553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 82553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 83553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 84553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, 85553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_unit *unit) 86553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 87553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 88553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 89ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to unit 0x%016Lx on port 0x%016Lx\n", 907ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 917ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 92553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 93553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 945ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsuad_1", req); 95553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 96553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 97553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 98553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) 99553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 100ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_err(&req->adapter->ccw_device->dev, "FCP device not " 101ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "operational because of an unsupported FC class\n"); 1025ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); 103553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 104553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 105553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 106c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 107c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_free - free memory used by fsf request 108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: pointer to struct zfcp_fsf_req 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_free(struct zfcp_fsf_req *req) 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->pool)) { 113a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 114a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); 115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(req, req->pool); 116dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 117dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 118dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens 119a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 120a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb); 121a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kfree(req); 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 126ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig unsigned long flags; 127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port; 130c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int d_id = sr_buf->d_id & ZFCP_DID_MASK; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 132ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock_irqsave(&adapter->port_list_lock, flags); 133ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(port, &adapter->port_list, list) 134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (port->d_id == d_id) { 1355ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(port, 0, "fssrpc1", req); 136ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig break; 137c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 138ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock_irqrestore(&adapter->port_list_lock, flags); 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1415ffd51a5e495a2a002efd523aef0001912b080bdSwen Schilligstatic void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id, 142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *link_down) 143aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin{ 144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 145698ec01635819c5ae60090bb4efcbeffc41642fbMartin Peschke 146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) 147ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin return; 148ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 149ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); 15070932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt 151a2fa0aede07c9488239dcac1eae58233181c355aChristof Schmitt zfcp_scsi_schedule_rports_block(adapter); 152ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!link_down) 1542f8f3ed5fc566700cf45d422f4cf1624bd123d93Andreas Herrmann goto out; 155ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 156aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin switch (link_down->error_code) { 157aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_LIGHT: 158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 159ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is no light signal from the local " 160ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel cable\n"); 161aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 162aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WRAP_PLUG: 163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 164ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is a wrap plug instead of a fibre " 165ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "channel cable\n"); 166aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 167aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP: 168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 169ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent fibre channel node does not " 170ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "support FCP\n"); 171aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 172aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FIRMWARE_UPDATE: 173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 174ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device is suspended because of a " 175ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "firmware update\n"); 176553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt break; 177aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_INVALID_WWPN: 178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 179ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device detected a WWPN that is " 180ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "duplicate or not valid\n"); 181aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 182aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_NPIV_SUPPORT: 183c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 184ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The fibre channel fabric does not support NPIV\n"); 185aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 186aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP_RESOURCES: 187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 188ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter cannot support more NPIV ports\n"); 189aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 190aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: 191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 192ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent switch cannot support " 193ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "more NPIV ports\n"); 194aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 195aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: 196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 197ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter could not log in to the " 198ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel fabric\n"); 199aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 200aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: 201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 202ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The WWPN assignment file on the FCP adapter " 203ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 204aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 205aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: 206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 207ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The mode table on the FCP adapter " 208ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 209aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 210aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: 211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 212ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "All NPIV ports on the FCP adapter have " 213ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "been assigned\n"); 214aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 215aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin default: 216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 217ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The link between the FCP adapter and " 218ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "the FC fabric is down\n"); 219aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_failed(adapter, id, req); 222aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin} 223aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *ldi = 228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (struct fsf_link_down_info *) &sr_buf->payload; 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: 2325ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi); 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FDISC_FAILED: 2355ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi); 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: 2385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL); 239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig }; 240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) 243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 2485771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("dism", adapter->dbf, sr_buf); 249a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2545771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("read", adapter->dbf, sr_buf); 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_type) { 257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_PORT_CLOSED: 258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_port_closed(req); 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_INCOMING_ELS: 261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_incoming_els(req); 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SENSE_DATA_AVAIL: 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: 266ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_warn(&adapter->ccw_device->dev, 267ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The error threshold for checksum statistics " 268ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been exceeded\n"); 2695771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_berr(adapter->dbf, req); 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_DOWN: 272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_link_down(req); 273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_UP: 275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 276ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The local link has been restored\n"); 277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 2785ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, 279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 2845ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fssrh_2", req); 285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_NOTIFICATION_LOST: 287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) 2885ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_3", 2895ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) 2919eae07ef6bb5988163d8bb82cd952905db47b721Swen Schillig queue_work(adapter->work_queue, &adapter->scan_work); 292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_CFDC_UPDATED: 2945ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); 295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: 297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = sr_buf->payload.word[0]; 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 301a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_inc(&adapter->stat_miss); 3054544683a4b1d4e65ccca8c736bac56a195a5206bSwen Schillig queue_work(adapter->work_queue, &adapter->stat_work); 306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) 309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_FCP_RSP_AVAILABLE: 312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RETRY_POSSIBLE: 314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_COMMAND_ABORTED: 317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTED; 318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RECOM: 320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 321ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter reported a problem " 322ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "that cannot be recovered\n"); 3235ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); 324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* all non-return stats set FSFREQ_ERROR*/ 327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_UNKNOWN_COMMAND: 337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 338ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter does not recognize the command 0x%x\n", 339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command); 3405ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); 341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_qual_eval(req); 345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) 350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3555771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_response(req); 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */ 360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->prefix.prot_status) { 364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_GOOD: 365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_FSF_STATUS_PRESENTED: 366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_QTCB_VERSION_ERROR: 368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 369ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "QTCB version 0x%x not supported by FCP adapter " 370ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, 371ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt psq->word[0], psq->word[1]); 3725ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); 373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_ERROR_STATE: 375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_SEQ_NUMB_ERROR: 3765ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); 377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_RETRY; 378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_UNSUPP_QTCB_TYPE: 380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 381ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The QTCB type is not supported by the FCP adapter\n"); 3825ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); 383c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_HOST_CONNECTION_INITIALIZING: 385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, 386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_DUPLICATE_REQUEST_ID: 389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 390ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%Lx is an ambiguous request identifier\n", 391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (unsigned long long)qtcb->bottom.support.req_handle); 3925ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); 393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_LINK_DOWN: 3955ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fspse_5", 3965ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig &psq->link_down_info); 397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* FIXME: reopening adapter now? better wait for link up */ 3985ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); 399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_REEST_QUEUE: 401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 4025ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL, 403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 4075ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 4085ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fspse_8", req); 409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 412ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%x is not a valid transfer protocol status\n", 413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->prefix.prot_status); 4145ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); 415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 419c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_complete - process completion of a FSF request 421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: The FSF request that has been completed. 422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * When a request has been completed either from the FCP adapter, 424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * or it has been dismissed due to a queue shutdown, this function 425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * is called to process the completion status and trigger further 426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * events related to the FSF request. 427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 428bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligstatic void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 430c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { 431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_handler(req); 432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 435c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_protstatus_eval(req); 437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_eval(req); 438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler(req); 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->erp_action) 441287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_notify(req->erp_action, 0); 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) 444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 446058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig complete(&req->completion); 447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 449bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 450bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_req_dismiss_all - dismiss all fsf requests 451bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 452bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * 453bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Never ever call this without shutting down the adapter first. 454bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Otherwise the adapter would continue using and corrupting s390 storage. 455bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Included BUG_ON() call to ensure this is done. 456bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * ERP is supposed to be the only user of this function. 457bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 458bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligvoid zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) 459bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 460bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *req, *tmp; 461bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned long flags; 462bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig LIST_HEAD(remove_queue); 463bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned int i; 464bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 465bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); 466bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_lock_irqsave(&adapter->req_list_lock, flags); 467bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (i = 0; i < REQUEST_LIST_SIZE; i++) 468bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_splice_init(&adapter->req_list[i], &remove_queue); 469bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_unlock_irqrestore(&adapter->req_list_lock, flags); 470bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 471bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_for_each_entry_safe(req, tmp, &remove_queue, list) { 472bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&req->list); 473bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; 474bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(req); 475bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 476bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 477bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) 479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom; 481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.config; 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = bottom->nport_serv_param.wwnn; 490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = bottom->nport_serv_param.wwpn; 491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = bottom->s_id & ZFCP_DID_MASK; 492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = bottom->fc_link_speed; 493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; 494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = bottom->adapter_type; 496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->timer_ticks = bottom->timer_interval; 497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = bottom->peer_d_id & ZFCP_DID_MASK; 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = bottom->plogi_payload.wwpn; 505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = bottom->plogi_payload.wwnn; 506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 513dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 516ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 517ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 5185ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); 519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 526553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 527553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 531553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5418a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 549ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 550ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 551ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 5525ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); 553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 555c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5695ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsecdh2", 570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 5735ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); 574c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 575c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 578c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 579c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 587ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 588ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5895ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); 590c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 591c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 592c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 593c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 594ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 595ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5965ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); 597c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 598c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 600c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 601c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 602c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 603c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 604c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 606c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 607c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 6089eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 6090282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { 610c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 6110282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6120282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt } else 613c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 614c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 615c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 616c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 618c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 619c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 620c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 621c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 622c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 623c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 624c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 626c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 6315ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsepdh1", 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 633aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 636d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 637564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic int zfcp_fsf_sbal_check(struct zfcp_qdio *qdio) 638c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 639564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio_queue *req_q = &qdio->req_q; 640c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 641564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 6427001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann if (atomic_read(&req_q->count)) 6437001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann return 1; 644564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 6457001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann return 0; 6467001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann} 6477001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann 648564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic int zfcp_fsf_req_sbal_get(struct zfcp_qdio *qdio) 6497001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann{ 650564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 6517001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann long ret; 652dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt 653564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 654564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig ret = wait_event_interruptible_timeout(qdio->req_q_wq, 655564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig zfcp_fsf_sbal_check(qdio), 5 * HZ); 656c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret > 0) 657c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 658cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt if (!ret) { 659564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 660cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt /* assume hanging outbound queue, try queue recovery */ 661cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL); 662cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt } 6637001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann 664564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 665c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 666c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 667c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 668a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) 669c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 671a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 672a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 673a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 674a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 675a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = kmalloc(sizeof(*req), GFP_ATOMIC); 676a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 677a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req)) 678c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 679a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 680c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 68188f2a977870af655296a682fe2a58c822cd25bb2Christof Schmitt req->pool = pool; 682c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 683c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 684c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 685a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) 686c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 687a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct fsf_qtcb *qtcb; 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 689c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 692a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); 693a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 695c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 698a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return qtcb; 699c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 700c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 701564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, 70209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig u32 fsf_cmd, mempool_t *pool) 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 70444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 705564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio_queue *req_q = &qdio->req_q; 706564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 707a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 709c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 7101e9b16430ff4fd09408a74342d6b8338228e2f70Christof Schmitt return ERR_PTR(-ENOMEM); 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 717058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig init_completion(&req->completion); 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 720c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 72152bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt req->req_id = adapter->req_no; 72242428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_number = 1; 72342428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_first = req_q->first; 72442428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_last = req_q->first; 72542428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = 1; 726c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 727564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].addr = (void *) req->req_id; 729c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_COMMAND; 730c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 731a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { 732a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 733a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); 734a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 735a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(NULL); 736a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 737a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req->qtcb)) { 738a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig zfcp_fsf_req_free(req); 739a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return ERR_PTR(-ENOMEM); 740a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig } 741a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 742564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 743c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 744c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 748c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->seq_no = adapter->fsf_req_seq_no; 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].addr = (void *) req->qtcb; 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].length = sizeof(struct fsf_qtcb); 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 759951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 763c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 764c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 766564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 767135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann unsigned long flags; 768135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann int idx; 769135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann int with_qtcb = (req->qtcb != NULL); 770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 771c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* put allocated FSF request into hash table */ 77245316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_lock_irqsave(&adapter->req_list_lock, flags); 773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig idx = zfcp_reqlist_hash(req->req_id); 774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_add_tail(&req->list, &adapter->req_list[idx]); 77545316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_unlock_irqrestore(&adapter->req_list_lock, flags); 776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 777564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->queue_req.qdio_outb_usage = atomic_read(&qdio->req_q.count); 778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 779564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_qdio_send(qdio, &req->queue_req)) { 780c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 7813765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_lock_irqsave(&adapter->req_list_lock, flags); 7823765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt /* lookup request again, list might have changed */ 7833765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt if (zfcp_reqlist_find_safe(adapter, req)) 7843765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt zfcp_reqlist_remove(adapter, req); 7853765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_unlock_irqrestore(&adapter->req_list_lock, flags); 7865ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); 787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 788c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 789c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 790c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 791135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann if (with_qtcb) 792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 79352bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt adapter->req_no++; 794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 804564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_status_read(struct zfcp_qdio *qdio) 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 806564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 80944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 810c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 812564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 813564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 816564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 817a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.status_read_req); 818025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 823564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; 82542428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = 2; 826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 827a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); 828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 833c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 834564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_curr(qdio, &req->queue_req); 835c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->addr = (void *) sr_buf; 836c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->length = sizeof(*sr_buf); 837059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 838c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 840c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 842c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 844c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 845a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 8485771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL); 849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 850564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 853c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 856c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8655ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 8665ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsafch1", req); 867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 871c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8725ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); 873c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 877c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 8805ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsafch3", req); 881c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 882c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 8855ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fsafch4", req); 886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 8926f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 893dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 895c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 900c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 906c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 907c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 908c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 91363caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_unit *unit) 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 91544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 916c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 917564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 9188a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 919564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 920564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 922564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, 923564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_abort); 924633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 925633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 926c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 927633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 9282abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 929c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 931c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 933564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 935c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 941c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 942c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 943c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 944c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 945c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 951564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 952c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 955c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 957c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_ct *send_ct = req->data; 959c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 961c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = -EINVAL; 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 963c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 9685771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_ct_response(req); 969c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = 0; 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 972c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 978c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 985c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 986c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 988c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 9895ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); 990dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 991c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 996c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1001c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (send_ct->handler) 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_ct->handler(send_ct->handler_data); 1003c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1005426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmittstatic void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale, 1006426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_req, 1007426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_resp) 1008426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 1009426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ; 1010426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[2].addr = sg_virt(sg_req); 1011426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[2].length = sg_req->length; 1012426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].addr = sg_virt(sg_resp); 1013426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].length = sg_resp->length; 1014426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY; 1015426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 1016426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 1017426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmittstatic int zfcp_fsf_one_sbal(struct scatterlist *sg) 1018426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 1019426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return sg_is_last(sg) && sg->length <= PAGE_SIZE; 1020426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 1021426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 102239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmittstatic int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, 102339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_req, 102439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_resp, 102539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt int max_sbals) 1026c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 102742428f747a8a0db9c6de03e105932316defad65dSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1028564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(adapter->qdio, 102942428f747a8a0db9c6de03e105932316defad65dSwen Schillig &req->queue_req); 103042428f747a8a0db9c6de03e105932316defad65dSwen Schillig u32 feat = adapter->adapter_features; 1031c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 1032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 103339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { 1034426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt if (!zfcp_fsf_one_sbal(sg_req) || !zfcp_fsf_one_sbal(sg_resp)) 103539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return -EOPNOTSUPP; 103639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 1037426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); 1038426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return 0; 1039426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt } 1040426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 1041426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt /* use single, unchained SBAL if it can hold the request */ 1042426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt if (zfcp_fsf_one_sbal(sg_req) && zfcp_fsf_one_sbal(sg_resp)) { 1043426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); 104439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return 0; 104539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt } 104639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 1047564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req, 104842428f747a8a0db9c6de03e105932316defad65dSwen Schillig SBAL_FLAGS0_TYPE_WRITE_READ, 1049c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_req, max_sbals); 1050c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 10519072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 1052c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 105342428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = ZFCP_LAST_SBALE_PER_SBAL; 1054c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1055564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req, 105642428f747a8a0db9c6de03e105932316defad65dSwen Schillig SBAL_FLAGS0_TYPE_WRITE_READ, 1057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_resp, max_sbals); 1058b1a58985853574346f1518531bdd82069501b317Christof Schmitt req->qtcb->bottom.support.resp_buf_length = bytes; 1059c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 10609072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 106198fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt 1062b1a58985853574346f1518531bdd82069501b317Christof Schmitt return 0; 1063b1a58985853574346f1518531bdd82069501b317Christof Schmitt} 1064b1a58985853574346f1518531bdd82069501b317Christof Schmitt 1065b1a58985853574346f1518531bdd82069501b317Christof Schmittstatic int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, 1066b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_req, 1067b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_resp, 1068b1a58985853574346f1518531bdd82069501b317Christof Schmitt int max_sbals) 1069b1a58985853574346f1518531bdd82069501b317Christof Schmitt{ 1070b1a58985853574346f1518531bdd82069501b317Christof Schmitt int ret; 1071b1a58985853574346f1518531bdd82069501b317Christof Schmitt 1072b1a58985853574346f1518531bdd82069501b317Christof Schmitt ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp, max_sbals); 1073b1a58985853574346f1518531bdd82069501b317Christof Schmitt if (ret) 1074b1a58985853574346f1518531bdd82069501b317Christof Schmitt return ret; 1075b1a58985853574346f1518531bdd82069501b317Christof Schmitt 107698fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt /* common settings for ct/gs and els requests */ 107798fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.service_class = FSF_CLASS_3; 107898fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.timeout = 2 * R_A_TOV; 10799d38500de156fb28ffa8741acb90c4dc90a9fb4bChristof Schmitt zfcp_fsf_start_timer(req, (2 * R_A_TOV + 10) * HZ); 1080c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1081c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1085c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 1086c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 1087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1089799b76d09aeee558d18c1f5b93e63f58f1d1fc11Christof Schmittint zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool) 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = ct->wka_port; 1092564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 1093c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1094c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1096564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1097564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1098c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1100564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, pool); 110109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1102025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1103c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1104c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11053f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 11063f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 110709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1108b1a58985853574346f1518531bdd82069501b317Christof Schmitt ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, 1109b1a58985853574346f1518531bdd82069501b317Christof Schmitt FSF_MAX_SBALS_PER_REQ); 1110553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 11145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 1115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11175771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_ct_request(req); 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1121c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1128564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_els *send_els = req->data; 1135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1136c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1140c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 11455771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_response(req); 1146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 115464b29a130901d5b8578e9f602cf2dae56aaff224Andreas Herrmann if (port && (send_els->ls_code != ZFCP_LS_ADISC)) 11556f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(port); 1156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /*fall through */ 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1169dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt if (port) 1170dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt zfcp_fsf_access_denied_port(req, port); 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1180aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 1188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_els(struct zfcp_send_els *els) 1189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1191564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = els->adapter->qdio; 1192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1194564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1195564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 119709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1198564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, NULL); 119909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1200025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 120509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1206b1a58985853574346f1518531bdd82069501b317Christof Schmitt ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, 2); 120744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig 1208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 121198fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.d_id = els->d_id; 1212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12155771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_request(req); 1216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1226564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 123244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1234564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1237564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1238564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 124009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1241564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 1242564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 124309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1244025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 124909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1250564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 125152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 125252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1255aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1256aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 12579eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1258aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1263287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1270564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 127152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 127252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1274564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, 1275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 127652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 127744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1281564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1282564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1283ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1285564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, NULL); 128609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1287025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1289ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 129052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 129152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1292564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 129352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 129452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 1295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 129652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 129852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 129952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 130052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 130152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 130252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 130352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 130552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1308564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1309553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1310058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 131152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1313ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 131452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1315ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1316564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1322aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1327564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 132844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1332564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 133352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1335564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1336564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 133809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1339564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 1340564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 134109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1342025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1345aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1346aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 134709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1348564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 134952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 135052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 135552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1356287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 136052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig erp_action->fsf_req = NULL; 136152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1363564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 136452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 136552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 136652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 136752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 136852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1369564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig * @qdio: pointer to struct zfcp_qdio 1370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 137252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1373564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, 1374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 137552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 137644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 137952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1380564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 138152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 138252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1383564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1384564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1385ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1387564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, NULL); 138809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1389025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1391ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 139452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 139652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1397564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 139852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 139952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 140052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1404564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1405ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1406553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1407058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 1408058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig 1409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 1412ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1413ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1414564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1415ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1418c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fsf_plogi *plogi; 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1425a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann goto out; 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1435ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 14367ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig "remote port 0x%016Lx\n", 14377ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 14385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_failed(port, "fsoph_1", req); 1439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1454d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1455d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1456d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els; 147339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (req->qtcb->bottom.support.els1_length >= 147439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt FSF_PLOGI_MIN_LEN) { 147510d00f78e67223ef429fa5f4abfc9ea4ad740490Christof Schmitt if (plogi->serv_param.wwpn != port->wwpn) { 1476b98478d71b0fea6d35f96069612d92b76013589fChristof Schmitt port->d_id = 0; 147710d00f78e67223ef429fa5f4abfc9ea4ad740490Christof Schmitt dev_warn(&port->adapter->ccw_device->dev, 147810d00f78e67223ef429fa5f4abfc9ea4ad740490Christof Schmitt "A port opened with WWPN 0x%016Lx " 147910d00f78e67223ef429fa5f4abfc9ea4ad740490Christof Schmitt "returned data that identifies it as " 148010d00f78e67223ef429fa5f4abfc9ea4ad740490Christof Schmitt "WWPN 0x%016Lx\n", 148110d00f78e67223ef429fa5f4abfc9ea4ad740490Christof Schmitt (unsigned long long) port->wwpn, 148210d00f78e67223ef429fa5f4abfc9ea4ad740490Christof Schmitt (unsigned long long) 148310d00f78e67223ef429fa5f4abfc9ea4ad740490Christof Schmitt plogi->serv_param.wwpn); 148410d00f78e67223ef429fa5f4abfc9ea4ad740490Christof Schmitt } else { 1485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig port->wwnn = plogi->serv_param.wwnn; 1486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1494a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann 1495a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermannout: 1496f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig put_device(&port->sysfs_device); 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 150644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1507564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1508a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann struct zfcp_port *port = erp_action->port; 1509564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_fsf_req *req; 1510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1512564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1513564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1516564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 1517564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 151809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1519025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 152409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1525564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1530a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->qtcb->bottom.support.d_id = port->d_id; 1531a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->data = port; 1532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1534f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig get_device(&port->sysfs_device); 1535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1536287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 1541f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig put_device(&port->sysfs_device); 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1544564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 155344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1555c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 15575ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); 1558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 15635ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_port_status(port, "fscph_2", req, 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1571c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1573c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1575c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 157744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1578564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1579c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1582564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1583564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1586564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 1587564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 158809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1589025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1590c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1592c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 159409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1595564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1599c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1600c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1601c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1602c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1603c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1604c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1605287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1606c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1608c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1611c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1612564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) 16175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = req->data; 16195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 16205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { 16225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 16235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16265ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig switch (header->fsf_status) { 16275ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 16285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig dev_warn(&req->adapter->ccw_device->dev, 16295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig "Opening WKA port 0x%x failed\n", wka_port->d_id); 1630dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 16315ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 16325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1633dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 16345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ACCESS_DENIED: 16355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 16365ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig break; 16375ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_GOOD: 16385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->handle = header->port_handle; 163927f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig /* fall through */ 164027f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig case FSF_PORT_ALREADY_OPEN: 16415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_ONLINE; 16425ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 16445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16475ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16485ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_open_wka_port - create and send open wka-port request 16495ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * @wka_port: pointer to struct zfcp_wka_port 16505ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 16525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligint zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port) 16535ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16545ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 1655564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 16565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16585ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1659564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1660564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 16615ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16625ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1663564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 1664564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 166509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 16665ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16675ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16685ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16695ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 167109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1672564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 16735ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 16745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 16755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16765ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_open_wka_port_handler; 16775ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->bottom.support.d_id = wka_port->d_id; 16785ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16795ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16805ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16815ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16825ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16835ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1685564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 16865ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16895ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) 16905ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = req->data; 16925ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16935ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { 16945ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16955ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); 16965ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16975ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 16995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 17005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 17015ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17025ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 17035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_close_wka_port - create and send close wka port request 17045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * @erp_action: pointer to struct zfcp_erp_action 17055ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 17065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 17075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligint zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port) 17085ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 17095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 1710564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 17115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 17125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 17135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1714564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1715564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 17165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 17175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1718564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 1719564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 172009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 17215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 17225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 17235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 17245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 17255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 172609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1727564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 17285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 17295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 17305ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17315ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_close_wka_port_handler; 17325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 17335ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 17345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 17365ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 17375ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 17385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 17395ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1740564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 17415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 17425ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 17435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1744c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1751a5b11dda12ed7e3a79180b10ad6209a40a02989fChristof Schmitt return; 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 17555ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); 1756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 17625c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 17635c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 17645c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1765ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock(&port->unit_list_lock); 1766ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(unit, &port->unit_list, list) 17675c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 17685c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 1769ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 1770dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig zfcp_erp_port_boxed(port, "fscpph2", req); 1771dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1772dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig ZFCP_STATUS_FSFREQ_RETRY; 1773dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1780c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1789ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock(&port->unit_list_lock); 1790ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(unit, &port->unit_list, list) 1791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 1793ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 180544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1806564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1809c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1810564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1811564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1814564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, 1815564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 181609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1817025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 182209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1823564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 1824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 1825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1833287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1834c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1836c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1840564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1844c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1848c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1852aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 185544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1858b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 18665ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); 1867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1871c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1873553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 18765ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsouh_2", req); 1877c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1878c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1881c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1882553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1883ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1884ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 18857ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18867ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn, 1887ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1888ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1889c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1890553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1891553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 18925ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsouh_3", req); 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1895c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1898c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1899ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1900ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 19017ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19027ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19035ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_4", req); 1904c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1905c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1906c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 19116f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 1912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1914c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1922aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1923aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1924aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 19256fcf41d1d8796f41b893754324704e23971c2ea1Christof Schmitt !zfcp_ccw_priv_sch(adapter)) { 1926aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1927aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1928aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1929aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1930aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 19361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1939ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1940ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 19417ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19427ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1947ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1948ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1949ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 19507ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19517ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19525ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_5", req); 1953c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19545ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1957ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1958ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 195927c3f0a6e4521ba0ff6e76da54969f0bf430f53aChristof Schmitt "0x%016Lx)\n", 19607ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19617ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19625ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_7", req); 1963c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19645ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1971c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1972c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1973c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1974c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1976c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 197844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1979c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1980564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 1981c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1982c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1983c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1984564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1985564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 19871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1988564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, 1989a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.erp_req); 199009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1991025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1992c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1994c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1995c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 199609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1997564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2001c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 2002c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 2003c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 2004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 2005c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 2006c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 2007c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2008c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 2009c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 2010c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2011287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 2012c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 2014c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2017c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2018564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2022c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2024c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2026c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 202744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2029c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 20315ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); 2032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 20355ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); 2036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 20395ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fscuh_3", req); 2040c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2041c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 20421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 2044c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 20466f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 2047c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 2049c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 20551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2060c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 2061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 2062c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 20631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 20651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 206644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2067564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 2068c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2069c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2071564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2072564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 20731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 207409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2075564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, 2076564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 207709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2078025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2079c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2080c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2081c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 208309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2084564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2085c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2088c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 2089c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 2090c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 2091c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 2092c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 2093c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 2094fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 2095287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 2096c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2097c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 2098c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2099c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 2100c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2101c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2102564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2103c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 21041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2106c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 2107c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2108c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 2109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 2110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 2111c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 2112c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2113d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmittstatic void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) 2114c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2115d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct fsf_qual_latency_info *lat_in; 2116d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct latency_cont *lat = NULL; 2117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 2118d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct zfcp_blk_drv_data blktrc; 2119d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt int ticks = req->adapter->timer_ticks; 2120c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2121d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; 2122c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2123d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags = 0; 2124d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; 2125d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 2126d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_REQ_ERROR; 2127d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.inb_usage = req->queue_req.qdio_inb_usage; 2128d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.outb_usage = req->queue_req.qdio_outb_usage; 2129d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 2130d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) { 2131d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_LAT_VALID; 2132d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.channel_lat = lat_in->channel_lat * ticks; 2133d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.fabric_lat = lat_in->fabric_lat * ticks; 2134d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 2135d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt switch (req->qtcb->bottom.io.data_direction) { 2136d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_READ: 2137d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.read; 2138d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2139d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_WRITE: 2140d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.write; 2141d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2142d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_CMND: 2143d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.cmd; 2144d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2145d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 21461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2147d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (lat) { 2148d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_lock(&unit->latencies.lock); 2149d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); 2150d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); 2151d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat->counter++; 2152d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_unlock(&unit->latencies.lock); 2153d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 21540997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl } 21550997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2156d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, 2157d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt sizeof(blktrc)); 21580997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 21590997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21620ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig struct scsi_cmnd *scpnt; 21634318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 21641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 21651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 2167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 21680ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig scpnt = req->data; 21690ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig if (unlikely(!scpnt)) { 21700ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21710ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig return; 21720ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig } 21730ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig 2174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) { 2175feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_SOFT_ERROR); 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 2180feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21844318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 21854318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2187d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_req_trace(req, scpnt); 21880997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 21908a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin if (scpnt->result != 0) 21915771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("erro", 3, req->adapter->dbf, scpnt, req); 21928a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else if (scpnt->retries > 0) 21935771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("retr", 4, req->adapter->dbf, scpnt, req); 21948a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else 21955771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("norm", 6, req->adapter->dbf, scpnt, req); 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 21991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 22001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 22011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 22031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 22061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 22091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22104318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 22114318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_rsp_info *rsp_info; 22121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22134318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 22144318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; 22154318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt 22164318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt if ((rsp_info->rsp_code != FCP_TMF_CMPL) || 2217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 22331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 22341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 22385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); 2239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 22435ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); 2244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 22481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2254ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2255ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 22577ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22587ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22595ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", 22605ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2265ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2266ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 22687ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22697ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22705ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", 22715ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 22755ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fssfch5", req); 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 22805ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fssfch6", req); 2281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 22876f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 2288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 22901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2297f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig put_device(&unit->sysfs_device); 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 22991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 23051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 230663caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittint zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, 230763caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct scsi_cmnd *scsi_cmnd) 23081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 23104318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2311bc90c8632f63cd94246e3fb6f1b6d7ecba48f1a0Christof Schmitt unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; 2312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 231363caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 2314564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 23151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 23191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2320564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock(&qdio->req_q_lock); 2321564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (atomic_read(&qdio->req_q.count) <= 0) { 2322564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 2323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23248fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt } 232509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2326564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 2327a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.scsi_req); 232809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2329025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 233409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2335f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig get_device(&unit->sysfs_device); 2336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 23424318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 23541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 2360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_WRITE; 23611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 2363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23664318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 23674318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); 23681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2369564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, sbtype, 2370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_sglist(scsi_cmnd), 2371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(real_bytes < 0)) { 237342428f747a8a0db9c6de03e105932316defad65dSwen Schillig if (req->queue_req.sbal_number >= FSF_MAX_SBALS_PER_REQ) { 2374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 2375ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Oversize data package, unit 0x%016Lx " 2376ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "on port 0x%016Lx closed\n", 23777ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 23787ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 23795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req); 2380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EINVAL; 2381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2392f3450c7b917201bb49d67032e9f60d5125675d6aSwen Schillig put_device(&unit->sysfs_device); 2393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2396564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock(&qdio->req_q_lock); 2397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 23981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 24051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 240663caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) 24071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 240844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 24104318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2411564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 24121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 24161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2417564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2418564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 2419c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 242009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2421564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 2422564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_req); 242309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2424633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 2425633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 2426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2427633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 24281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2430c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2435c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 24364318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2438564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE; 2440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 24411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24424318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 24434318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags); 24441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2451c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2452564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2453c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2454c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 24551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2457c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 24581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2461c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2462c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 24651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 24681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 246944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2470564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 2471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 24881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2489564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2490564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 2491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2493564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, NULL); 2494025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 24981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 25001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2501564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= direction; 25038a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 25078a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2508564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, 2509564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig direction, fsf_cfdc->sg, 2510564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig FSF_MAX_SBALS_PER_REQ); 2511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2519564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 25208a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2522058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 2523c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 25241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 25261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2527bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2528bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 2529bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO 2530bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 2531bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @sbal_idx: response queue index of SBAL to be processed 2532bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2533564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligvoid zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) 2534bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 2535564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 2536564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct qdio_buffer *sbal = qdio->resp_q.sbal[sbal_idx]; 2537bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct qdio_buffer_element *sbale; 2538bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *fsf_req; 2539bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned long flags, req_id; 2540bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig int idx; 2541bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2542bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { 2543bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2544bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig sbale = &sbal->element[idx]; 2545bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id = (unsigned long) sbale->addr; 2546bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_lock_irqsave(&adapter->req_list_lock, flags); 2547bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig fsf_req = zfcp_reqlist_find(adapter, req_id); 2548bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2549bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (!fsf_req) 2550bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig /* 2551bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Unknown request means that we have potentially memory 2552bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * corruption and must stop the machine immediately. 2553bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2554bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig panic("error: unknown req_id (%lx) on adapter %s.\n", 2555bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id, dev_name(&adapter->ccw_device->dev)); 2556bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2557bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&fsf_req->list); 2558bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_unlock_irqrestore(&adapter->req_list_lock, flags); 2559bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 256042428f747a8a0db9c6de03e105932316defad65dSwen Schillig fsf_req->queue_req.sbal_response = sbal_idx; 256142428f747a8a0db9c6de03e105932316defad65dSwen Schillig fsf_req->queue_req.qdio_inb_usage = 2562564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_read(&qdio->resp_q.count); 2563bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(fsf_req); 2564bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2565bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) 2566bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig break; 2567bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 2568bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 2569