zfcp_fsf.c revision 615f59e0daaf56e43dcaaf3ea228967d9bc21584
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * zfcp device driver 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * Implementation of FSF commands. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt * Copyright IBM Corporation 2002, 2010 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt#define KMSG_COMPONENT "zfcp" 10ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 11ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt 120997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#include <linux/blktrace_api.h> 139d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt#include <scsi/fc/fc_els.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "zfcp_ext.h" 154318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt#include "zfcp_fc.h" 16dcd20e2316cdc333dfdee09649dbe3642eb30e75Christof Schmitt#include "zfcp_dbf.h" 17b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt#include "zfcp_reqlist.h" 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_request_timeout_handler(unsigned long data) 20287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 21287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; 225ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 235ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsrth_1", NULL); 24287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 25287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 26287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, 27287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt unsigned long timeout) 28287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 29287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_fsf_request_timeout_handler; 30287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->adapter; 31287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + timeout; 32287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 33287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 34287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 35287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) 36287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 37287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt BUG_ON(!fsf_req->erp_action); 38287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_erp_timeout_handler; 39287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->erp_action; 40287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + 30 * HZ; 41287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 42287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 43287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* association between FSF command and FSF QTCB type */ 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 fsf_qtcb_type[] = { 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 61553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) 62553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 63c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u16 subtable = table >> 16; 64553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt u16 rule = table & 0xffff; 65ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; 66553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 67ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt if (subtable && subtable < ARRAY_SIZE(act_type)) 68553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 69ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied according to ACT rule type %s, " 70ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "rule %d\n", act_type[subtable], rule); 71553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 72553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 73553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, 74553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_port *port) 75553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 76553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 77553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 78ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to port 0x%016Lx\n", 797ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 80553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 81553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 825ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_access_denied(port, "fspad_1", req); 83553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 84553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 85553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 86553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, 87553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_unit *unit) 88553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 89553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 90553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 91ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to unit 0x%016Lx on port 0x%016Lx\n", 927ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 937ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 94553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 95553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 965ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsuad_1", req); 97553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 98553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 99553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 100553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) 101553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 102ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_err(&req->adapter->ccw_device->dev, "FCP device not " 103ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "operational because of an unsupported FC class\n"); 1045ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); 105553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 106553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 107553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_free - free memory used by fsf request 110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: pointer to struct zfcp_fsf_req 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_free(struct zfcp_fsf_req *req) 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->pool)) { 115a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 116a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); 117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(req, req->pool); 118dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 119dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 120dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens 121a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 122a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb); 123a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kfree(req); 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 128ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig unsigned long flags; 129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 130c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port; 132800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt int d_id = ntoh24(sr_buf->d_id); 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 134ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock_irqsave(&adapter->port_list_lock, flags); 135ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(port, &adapter->port_list, list) 136c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (port->d_id == d_id) { 1375ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(port, 0, "fssrpc1", req); 138ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig break; 139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 140ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock_irqrestore(&adapter->port_list_lock, flags); 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1435ffd51a5e495a2a002efd523aef0001912b080bdSwen Schilligstatic void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id, 144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *link_down) 145aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin{ 146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 147698ec01635819c5ae60090bb4efcbeffc41642fbMartin Peschke 148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) 149ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin return; 150ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 151ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); 15270932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt 153a2fa0aede07c9488239dcac1eae58233181c355aChristof Schmitt zfcp_scsi_schedule_rports_block(adapter); 154ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!link_down) 1562f8f3ed5fc566700cf45d422f4cf1624bd123d93Andreas Herrmann goto out; 157ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 158aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin switch (link_down->error_code) { 159aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_LIGHT: 160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 161ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is no light signal from the local " 162ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel cable\n"); 163aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 164aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WRAP_PLUG: 165c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 166ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is a wrap plug instead of a fibre " 167ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "channel cable\n"); 168aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 169aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP: 170c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 171ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent fibre channel node does not " 172ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "support FCP\n"); 173aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 174aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FIRMWARE_UPDATE: 175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 176ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device is suspended because of a " 177ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "firmware update\n"); 178553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt break; 179aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_INVALID_WWPN: 180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 181ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device detected a WWPN that is " 182ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "duplicate or not valid\n"); 183aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 184aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_NPIV_SUPPORT: 185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 186ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The fibre channel fabric does not support NPIV\n"); 187aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 188aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP_RESOURCES: 189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 190ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter cannot support more NPIV ports\n"); 191aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 192aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: 193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 194ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent switch cannot support " 195ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "more NPIV ports\n"); 196aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 197aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: 198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 199ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter could not log in to the " 200ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel fabric\n"); 201aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 202aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: 203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 204ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The WWPN assignment file on the FCP adapter " 205ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 206aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 207aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: 208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 209ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The mode table on the FCP adapter " 210ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 211aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 212aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: 213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 214ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "All NPIV ports on the FCP adapter have " 215ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "been assigned\n"); 216aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 217aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin default: 218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 219ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The link between the FCP adapter and " 220ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "the FC fabric is down\n"); 221aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_failed(adapter, id, req); 224aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin} 225aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *ldi = 230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (struct fsf_link_down_info *) &sr_buf->payload; 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: 2345ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi); 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FDISC_FAILED: 2375ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi); 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: 2405ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL); 241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig }; 242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) 245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 2505771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("dism", adapter->dbf, sr_buf); 251a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2565771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("read", adapter->dbf, sr_buf); 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_type) { 259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_PORT_CLOSED: 260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_port_closed(req); 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_INCOMING_ELS: 263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_incoming_els(req); 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SENSE_DATA_AVAIL: 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: 268ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_warn(&adapter->ccw_device->dev, 269ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The error threshold for checksum statistics " 270ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been exceeded\n"); 2715771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_berr(adapter->dbf, req); 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_DOWN: 274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_link_down(req); 275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_UP: 277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 278ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The local link has been restored\n"); 279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 2805ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, 281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 2865ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fssrh_2", req); 287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_NOTIFICATION_LOST: 289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) 2905ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_3", 2915ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) 2939eae07ef6bb5988163d8bb82cd952905db47b721Swen Schillig queue_work(adapter->work_queue, &adapter->scan_work); 294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_CFDC_UPDATED: 2965ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); 297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: 299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = sr_buf->payload.word[0]; 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 303a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_inc(&adapter->stat_miss); 3074544683a4b1d4e65ccca8c736bac56a195a5206bSwen Schillig queue_work(adapter->work_queue, &adapter->stat_work); 308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) 311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_FCP_RSP_AVAILABLE: 314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RETRY_POSSIBLE: 316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_COMMAND_ABORTED: 319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RECOM: 321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 322ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter reported a problem " 323ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "that cannot be recovered\n"); 3245ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); 325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* all non-return stats set FSFREQ_ERROR*/ 328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_UNKNOWN_COMMAND: 338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 339ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter does not recognize the command 0x%x\n", 340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command); 3415ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); 342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_qual_eval(req); 346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) 351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3565771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_response(req); 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 3594c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 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); 3774c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 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); 397452b505c5ada345103bdfdb39dc550df3ffe9eeaChristof Schmitt /* go through reopen to flush pending requests */ 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 LIST_HEAD(remove_queue); 462bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 463bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); 464b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_move(adapter->req_list, &remove_queue); 465bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 466bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_for_each_entry_safe(req, tmp, &remove_queue, list) { 467bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&req->list); 468bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; 469bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(req); 470bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 471bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 472bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) 474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 4759d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config; 476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 4789d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fc_els_flogi *nsp, *plogi; 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4809d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt /* adjust pointers for missing command code */ 4819d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param 4829d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt - sizeof(u32)); 4839d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload 4849d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt - sizeof(u32)); 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 4899d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt fc_host_port_name(shost) = nsp->fl_wwpn; 4909d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt fc_host_node_name(shost) = nsp->fl_wwnn; 491800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt fc_host_port_id(shost) = ntoh24(bottom->s_id); 492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = bottom->fc_link_speed; 493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; 4940fdd21330a9d7bc6790eae0aed768052c315ae44Christof Schmitt fc_host_supported_fc4s(shost)[2] = 1; /* FCP */ 4950fdd21330a9d7bc6790eae0aed768052c315ae44Christof Schmitt fc_host_active_fc4s(shost)[2] = 1; /* FCP */ 496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = bottom->adapter_type; 498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->timer_ticks = bottom->timer_interval; 499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 505800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt adapter->peer_d_id = ntoh24(bottom->peer_d_id); 5069d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwpn = plogi->fl_wwpn; 5079d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwnn = plogi->fl_wwnn; 508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 515dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 518ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 519ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 5205ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); 521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 523c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 527c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 528553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 529553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 533553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5438a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 551ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 552ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 553ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 5545ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); 555c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5715ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsecdh2", 572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 574c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 5755ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); 576c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 579c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 587c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 589ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 590ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5915ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); 592c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 593c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 594c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 595c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 596ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 597ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5985ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); 599c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 600c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 602c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 603c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 604c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 605c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 606c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 608c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 609c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 6109eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 6110282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { 612c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 6130282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6140282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt } else 615c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 616c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 617c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 618c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 620c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 621c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 622c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 623c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 624c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 626c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 6335ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsepdh1", 634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 635aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 637c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 638d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 639564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic int zfcp_fsf_sbal_check(struct zfcp_qdio *qdio) 640c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 641564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio_queue *req_q = &qdio->req_q; 642c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 643564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 6447001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann if (atomic_read(&req_q->count)) 6457001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann return 1; 646564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 6477001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann return 0; 6487001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann} 6497001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann 650564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic int zfcp_fsf_req_sbal_get(struct zfcp_qdio *qdio) 6517001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann{ 652564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 6537001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann long ret; 654dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt 655564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 656564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig ret = wait_event_interruptible_timeout(qdio->req_q_wq, 657564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig zfcp_fsf_sbal_check(qdio), 5 * HZ); 658c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret > 0) 659c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 660cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt if (!ret) { 661564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 662cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt /* assume hanging outbound queue, try queue recovery */ 663cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL); 664cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt } 6657001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann 666564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 667c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 668c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 669c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 670a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) 671c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 672c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 673a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 674a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 675a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 676a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 677a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = kmalloc(sizeof(*req), GFP_ATOMIC); 678a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 679a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req)) 680c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 681a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 682c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 68388f2a977870af655296a682fe2a58c822cd25bb2Christof Schmitt req->pool = pool; 684c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 685c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 686c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 687a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 689a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct fsf_qtcb *qtcb; 690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 693c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 694a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); 695a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 698c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 699c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 700a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return qtcb; 701c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 702c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 703564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, 70409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig u32 fsf_cmd, mempool_t *pool) 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 70644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 707564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio_queue *req_q = &qdio->req_q; 708564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 709a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 711c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 7121e9b16430ff4fd09408a74342d6b8338228e2f70Christof Schmitt return ERR_PTR(-ENOMEM); 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 717c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 719058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig init_completion(&req->completion); 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 722c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 72352bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt req->req_id = adapter->req_no; 72442428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_number = 1; 72542428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_first = req_q->first; 72642428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_last = req_q->first; 72742428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = 1; 728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 729564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 730c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].addr = (void *) req->req_id; 731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_COMMAND; 732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 733a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { 734a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 735a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); 736a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 737a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(NULL); 738a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 739a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req->qtcb)) { 740a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig zfcp_fsf_req_free(req); 741a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return ERR_PTR(-ENOMEM); 742a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig } 743a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 7445bdecd2248d4af6f3b311b4d8ca7f3f5f83a7191Christof Schmitt req->seq_no = adapter->fsf_req_seq_no; 745564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 748c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].addr = (void *) req->qtcb; 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].length = sizeof(struct fsf_qtcb); 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { 757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 760951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 764c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 766c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 767564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 768b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt int with_qtcb = (req->qtcb != NULL); 769e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt int req_id = req->req_id; 770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 771b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_add(adapter->req_list, req); 772c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 773564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->queue_req.qdio_outb_usage = atomic_read(&qdio->req_q.count); 774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 775564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_qdio_send(qdio, &req->queue_req)) { 776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 7773765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt /* lookup request again, list might have changed */ 778b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_find_rm(adapter->req_list, req_id); 7795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); 780c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 782c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 784135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann if (with_qtcb) 785c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 78652bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt adapter->req_no++; 787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 788c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 789c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 790c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 797564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_status_read(struct zfcp_qdio *qdio) 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 799564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 80244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 805564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 806564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 809564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 810a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.status_read_req); 811025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 816564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 817c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; 81842428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = 2; 819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 820a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); 821c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 827564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_curr(qdio, &req->queue_req); 828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->addr = (void *) sr_buf; 829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->length = sizeof(*sr_buf); 830059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 833c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 835c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 836c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 837c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 838a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 840c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 8415771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL); 842c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 843564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 844c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 848c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 853c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8585ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 8595ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsafch1", req); 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8655ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); 866c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 870c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 8735ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsafch3", req); 8744c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 8775ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fsafch4", req); 8784c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 881c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 8836f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 884dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 891c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 897c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 898c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 899c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 900c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 903c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 90463caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_unit *unit) 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 90644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 907c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 908564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 9098a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 910564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 911564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 913564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, 914564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_abort); 915633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 916633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 917c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 918633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 9192abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 920c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 922c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 924564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 925c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 926c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 928c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 929c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 931c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 933c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 935c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 941c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 942564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 943c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 9497c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_fsf_ct_els *ct = req->data; 950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9527c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->status = -EINVAL; 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 9595771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_ct_response(req); 9607c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->status = 0; 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 963c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 969c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 9764c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 978c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 9795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); 980dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 981c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 986c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 9917c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt if (ct->handler) 9927c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->handler(ct->handler_data); 993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 995426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmittstatic void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale, 996426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_req, 997426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_resp) 998426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 999426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ; 1000426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[2].addr = sg_virt(sg_req); 1001426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[2].length = sg_req->length; 1002426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].addr = sg_virt(sg_resp); 1003426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].length = sg_resp->length; 1004426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY; 1005426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 1006426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 1007426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmittstatic int zfcp_fsf_one_sbal(struct scatterlist *sg) 1008426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 1009426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return sg_is_last(sg) && sg->length <= PAGE_SIZE; 1010426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 1011426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 101239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmittstatic int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, 101339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_req, 101439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_resp, 101539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt int max_sbals) 1016c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 101742428f747a8a0db9c6de03e105932316defad65dSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1018564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(adapter->qdio, 101942428f747a8a0db9c6de03e105932316defad65dSwen Schillig &req->queue_req); 102042428f747a8a0db9c6de03e105932316defad65dSwen Schillig u32 feat = adapter->adapter_features; 1021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 1022c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 102339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { 1024426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt if (!zfcp_fsf_one_sbal(sg_req) || !zfcp_fsf_one_sbal(sg_resp)) 102539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return -EOPNOTSUPP; 102639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 1027426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); 1028426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return 0; 1029426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt } 1030426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 1031426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt /* use single, unchained SBAL if it can hold the request */ 1032426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt if (zfcp_fsf_one_sbal(sg_req) && zfcp_fsf_one_sbal(sg_resp)) { 1033426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); 103439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return 0; 103539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt } 103639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 1037564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req, 103842428f747a8a0db9c6de03e105932316defad65dSwen Schillig SBAL_FLAGS0_TYPE_WRITE_READ, 1039c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_req, max_sbals); 1040c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 10419072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 1042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 104342428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = ZFCP_LAST_SBALE_PER_SBAL; 1044c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1045564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req, 104642428f747a8a0db9c6de03e105932316defad65dSwen Schillig SBAL_FLAGS0_TYPE_WRITE_READ, 1047c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_resp, max_sbals); 1048b1a58985853574346f1518531bdd82069501b317Christof Schmitt req->qtcb->bottom.support.resp_buf_length = bytes; 1049c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 10509072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 105198fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt 1052b1a58985853574346f1518531bdd82069501b317Christof Schmitt return 0; 1053b1a58985853574346f1518531bdd82069501b317Christof Schmitt} 1054b1a58985853574346f1518531bdd82069501b317Christof Schmitt 1055b1a58985853574346f1518531bdd82069501b317Christof Schmittstatic int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, 1056b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_req, 1057b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_resp, 105851375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig int max_sbals, unsigned int timeout) 1059b1a58985853574346f1518531bdd82069501b317Christof Schmitt{ 1060b1a58985853574346f1518531bdd82069501b317Christof Schmitt int ret; 1061b1a58985853574346f1518531bdd82069501b317Christof Schmitt 1062b1a58985853574346f1518531bdd82069501b317Christof Schmitt ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp, max_sbals); 1063b1a58985853574346f1518531bdd82069501b317Christof Schmitt if (ret) 1064b1a58985853574346f1518531bdd82069501b317Christof Schmitt return ret; 1065b1a58985853574346f1518531bdd82069501b317Christof Schmitt 106698fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt /* common settings for ct/gs and els requests */ 106751375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig if (timeout > 255) 106851375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig timeout = 255; /* max value accepted by hardware */ 106998fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.service_class = FSF_CLASS_3; 107051375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig req->qtcb->bottom.support.timeout = timeout; 107151375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig zfcp_fsf_start_timer(req, (timeout + 10) * HZ); 1072c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1073c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1077c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 1078c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 1079c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10817c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmittint zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, 108251375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig struct zfcp_fsf_ct_els *ct, mempool_t *pool, 108351375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig unsigned int timeout) 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1085564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 1086c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1089564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1090564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1091c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1093564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, pool); 109409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1095025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1096c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1097c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10983f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 10993f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 110009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1101b1a58985853574346f1518531bdd82069501b317Christof Schmitt ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, 110251375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig FSF_MAX_SBALS_PER_REQ, timeout); 1103553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1106c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 11075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 1108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11107c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt zfcp_dbf_san_ct_request(req, wka_port->d_id); 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1118c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1121564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1122c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11277c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_fsf_ct_els *send_els = req->data; 1128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 11385771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_response(req); 1139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1159dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt if (port) 1160dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt zfcp_fsf_access_denied_port(req, port); 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1170aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 11787c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmittint zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, 117951375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig struct zfcp_fsf_ct_els *els, unsigned int timeout) 1180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 11827c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_qdio *qdio = adapter->qdio; 1183c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1185564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1186564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 118809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1189564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, NULL); 119009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1191025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 119609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 119751375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, 2, timeout); 119844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig 1199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12027c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt hton24(req->qtcb->bottom.support.d_id, d_id); 1203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12065771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_request(req); 1207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1217564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 122344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1225564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1228564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1229564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 123109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1232564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 1233564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 123409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1235025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 124009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1241564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 124252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 124352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1246aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1247aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 12489eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1249aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1252e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1254287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1258e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1261564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 126252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 126352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1265564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, 1266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 126752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 126844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1272564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1273564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1274ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1276564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, NULL); 127709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1278025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1280ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 128152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 128252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1283564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 128452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 128552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 1286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 128752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 128952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 129052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 129152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 129252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 129352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 129452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 129652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1299564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1300553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1301058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 130252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1304ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 130552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1306ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1307564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1313aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1318564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 131944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1323564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 132452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1326564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1327564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 132909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1330564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 1331564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 133209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1333025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1336aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1337aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 133809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1339564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 134052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 134152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1345e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 134652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1347287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1351e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 135252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1354564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 135552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 135652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 135752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 135852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 135952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1360564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig * @qdio: pointer to struct zfcp_qdio 1361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 136352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1364564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, 1365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 136652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 136744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 137052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1371564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 137252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 137352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1374564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1375564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1376ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1378564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, NULL); 137909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1380025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1382ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 138552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 138752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1388564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 138952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 139052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 139152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1395564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1396ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1397553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1398058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 1399058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig 1400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 1403ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1404ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1405564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1406ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 14139d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fc_els_flogi *plogi; 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1416a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann goto out; 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1426ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 14277ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig "remote port 0x%016Lx\n", 14287ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 14295ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_failed(port, "fsoph_1", req); 1430c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1445d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1446d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1447d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14639d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; 146439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (req->qtcb->bottom.support.els1_length >= 14659d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt FSF_PLOGI_MIN_LEN) 1466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1472a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann 1473a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermannout: 1474615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&port->dev); 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 148444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1485564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1486a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann struct zfcp_port *port = erp_action->port; 1487564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_fsf_req *req; 1488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1490564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1491564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1494564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 1495564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 149609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1497025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 150209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1503564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1508800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt hton24(req->qtcb->bottom.support.d_id, port->d_id); 1509a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->data = port; 1510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1511e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1512615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt get_device(&port->dev); 1513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1514287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1518e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 1519615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&port->dev); 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1522564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 153144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 15355ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); 1536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 15415ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_port_status(port, "fscph_2", req, 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 155544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1556564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1560564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1561564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1564564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 1565564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 156609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1567025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 157209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1573564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1578c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1579c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1581e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1583287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1587e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1589c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1590564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15945ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) 15955ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1596bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 15975ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 15985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { 1600bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 16015ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16025ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig switch (header->fsf_status) { 16055ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 16065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig dev_warn(&req->adapter->ccw_device->dev, 16075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig "Opening WKA port 0x%x failed\n", wka_port->d_id); 1608dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 16095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 16105ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1611dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 16125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ACCESS_DENIED: 1613bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 16145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig break; 16155ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_GOOD: 16165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->handle = header->port_handle; 161727f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig /* fall through */ 161827f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig case FSF_PORT_ALREADY_OPEN: 1619bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; 16205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 16225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16265ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_open_wka_port - create and send open wka-port request 1627bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: pointer to struct zfcp_fc_wka_port 16285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1630bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) 16315ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 1633564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 16345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16365ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1637564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1638564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 16395ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16405ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1641564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 1642564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 164309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 16445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16475ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16485ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 164909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1650564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 16515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 16525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 16535ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16545ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_open_wka_port_handler; 1655800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); 16565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16585ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16595ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16605ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16615ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16625ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1663564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 16645ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16655ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16665ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16675ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) 16685ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1669bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 16705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16715ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { 16725ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16735ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); 16745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1676bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 16775ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16785ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16795ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16805ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16815ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_close_wka_port - create and send close wka port request 1682bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: WKA port to open 16835ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1685bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) 16865ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 1688564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 16895ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16905ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1692564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1693564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 16945ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16955ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1696564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 1697564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 169809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 16995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 17005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 17015ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 17025ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 17035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 170409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1705564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 17065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 17075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 17085ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_close_wka_port_handler; 17105ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 17115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 17125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 17145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 17155ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 17165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 17175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1718564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 17195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 17205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 17215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1722c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1724c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1725c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1729a5b11dda12ed7e3a79180b10ad6209a40a02989fChristof Schmitt return; 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 17335ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); 1734c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1737c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 17405c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 17415c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 17425c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1743ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock(&port->unit_list_lock); 1744ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(unit, &port->unit_list, list) 17455c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 17465c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 1747ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 1748dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig zfcp_erp_port_boxed(port, "fscpph2", req); 17494c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 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) 1767c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1768c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 1769ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 178144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1782564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1785c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1786564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1787564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1790564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, 1791564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 179209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1793025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 179809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1799564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 1800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 1801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1807e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1809287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1810c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1813e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1816564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1828aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 183144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1834b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 18425ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); 1843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1849553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 18525ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsouh_2", req); 18534c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1856c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1857553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1858ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1859ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 18607ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18617ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn, 1862ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1863ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1865553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1866553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 18675ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsouh_3", req); 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1870c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1873c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1874ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1875ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 18767ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18777ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18785ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_4", req); 1879c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1880c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1881c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 18866f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 1887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1889c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1897aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1898aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1899aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 19006fcf41d1d8796f41b893754324704e23971c2ea1Christof Schmitt !zfcp_ccw_priv_sch(adapter)) { 1901aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1902aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1903aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1904aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1905aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 19061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1913c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1914ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1915ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 19167ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19177ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1922ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1923ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1924ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 19257ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19267ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19275ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_5", req); 1928c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19295ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1931c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1932ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1933ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 193427c3f0a6e4521ba0ff6e76da54969f0bf430f53aChristof Schmitt "0x%016Lx)\n", 19357ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19367ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19375ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_7", req); 1938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19395ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); 19401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 19521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 195344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1955564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 1956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1957c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1959564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1960564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1963564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, 1964a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.erp_req); 196509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1966025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1968c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1969c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1970c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 197109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1972564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 19731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 19741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1976c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1977c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 1978c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 1979c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1980c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1981e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1982c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1983c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 1984c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 1985c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1986287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1987c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1989c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1990e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1992c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1993564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1997c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1999c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2001c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 200244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 20065ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); 2007c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 20105ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); 2011c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 20145ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fscuh_3", req); 20154c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 2018c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 20191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 20206f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 2021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 20221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 2023c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2034c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 2035c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 2036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2038c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 20391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 204044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2041564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 2042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2043c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 20441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2045564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2046564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 20471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 204809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2049564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, 2050564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 205109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2052025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2053c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2054c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2055c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 205709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2058564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2059c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 20611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2062c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 2063c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 2064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 2065c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 2066c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 2067e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 2068fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 2069287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 2070c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2071c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 2072c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2073e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 2074c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2075c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2076564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2077c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 20781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2080c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 2081c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2082c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 2083c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 2084c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 2085c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 2086c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2087d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmittstatic void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) 2088c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2089d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct fsf_qual_latency_info *lat_in; 2090d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct latency_cont *lat = NULL; 2091c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 2092d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct zfcp_blk_drv_data blktrc; 2093d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt int ticks = req->adapter->timer_ticks; 2094c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2095d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; 2096c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2097d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags = 0; 2098d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; 2099d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 2100d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_REQ_ERROR; 2101d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.inb_usage = req->queue_req.qdio_inb_usage; 2102d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.outb_usage = req->queue_req.qdio_outb_usage; 2103d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 2104d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) { 2105d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_LAT_VALID; 2106d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.channel_lat = lat_in->channel_lat * ticks; 2107d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.fabric_lat = lat_in->fabric_lat * ticks; 2108d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 2109d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt switch (req->qtcb->bottom.io.data_direction) { 2110d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_READ: 2111d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.read; 2112d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2113d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_WRITE: 2114d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.write; 2115d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2116d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_CMND: 2117d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.cmd; 2118d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2119d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2121d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (lat) { 2122d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_lock(&unit->latencies.lock); 2123d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); 2124d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); 2125d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat->counter++; 2126d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_unlock(&unit->latencies.lock); 2127d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 21280997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl } 21290997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2130d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, 2131d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt sizeof(blktrc)); 21320997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 21330997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21360ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig struct scsi_cmnd *scpnt; 21374318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 21381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2140c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 2141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 21420ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig scpnt = req->data; 21430ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig if (unlikely(!scpnt)) { 21440ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21450ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig return; 21460ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig } 21470ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig 2148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 21494c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); 21501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21534318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 21544318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); 21551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2156d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_req_trace(req, scpnt); 21570997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 21598a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin if (scpnt->result != 0) 21605771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("erro", 3, req->adapter->dbf, scpnt, req); 21618a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else if (scpnt->retries > 0) 21625771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("retr", 4, req->adapter->dbf, scpnt, req); 21638a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else 21645771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("norm", 6, req->adapter->dbf, scpnt, req); 21651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 21671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 21681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 21691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21794318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 21804318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_rsp_info *rsp_info; 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21824318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 21834318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; 21844318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt 21854318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt if ((rsp_info->rsp_code != FCP_TMF_CMPL) || 2186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 22031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 22075ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); 2208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 22125ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); 2213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 22171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2223ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2224ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 22267ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22277ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22285ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", 22295ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2234ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2235ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 22377ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22387ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22395ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", 22405ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 22445ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fssfch5", req); 22454c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 22485ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fssfch6", req); 22494c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 22546f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 2255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2264615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&unit->dev); 2265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 22661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 22721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 227363caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittint zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, 227463caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct scsi_cmnd *scsi_cmnd) 22751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 22774318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2278bc90c8632f63cd94246e3fb6f1b6d7ecba48f1a0Christof Schmitt unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; 2279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 228063caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 2281564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 22861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2287564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock(&qdio->req_q_lock); 2288564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (atomic_read(&qdio->req_q.count) <= 0) { 2289564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 2290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22918fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt } 229209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2293564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 2294a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.scsi_req); 229509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2296025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 230109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2302615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt get_device(&unit->dev); 2303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 23094318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 23211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 2327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_WRITE; 23281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 2330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23334318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 23344318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); 23351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2336564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, sbtype, 2337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_sglist(scsi_cmnd), 2338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(real_bytes < 0)) { 234042428f747a8a0db9c6de03e105932316defad65dSwen Schillig if (req->queue_req.sbal_number >= FSF_MAX_SBALS_PER_REQ) { 2341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 2342ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Oversize data package, unit 0x%016Lx " 2343ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "on port 0x%016Lx closed\n", 23447ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 23457ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 23465ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req); 2347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EINVAL; 2348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2359615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&unit->dev); 2360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2363564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock(&qdio->req_q_lock); 2364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 23651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 23721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 237363caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) 23741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 237544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 23774318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2378564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 23791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 23831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2384564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2385564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 2386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 238709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2388564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 2389564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_req); 239009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2391633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 2392633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 2393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2394633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 23951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 24034318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2405564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE; 2407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 24081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24094318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 24104318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags); 24111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2417c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2418c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2419564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 24221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 24251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2430c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 24321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 24351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 243644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2437564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 2438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2451c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2453c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2454c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 24551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2456564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2457564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 2458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2460564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, NULL); 2461025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2462c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 24651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 24671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2468564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= direction; 24708a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 24748a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2475564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, 2476564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig direction, fsf_cfdc->sg, 2477564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig FSF_MAX_SBALS_PER_REQ); 2478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 24821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2486564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 24878a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2489058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 2490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 24911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 24931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2494bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2495bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 2496bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO 2497bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 2498bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @sbal_idx: response queue index of SBAL to be processed 2499bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2500564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligvoid zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) 2501bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 2502564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 2503564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct qdio_buffer *sbal = qdio->resp_q.sbal[sbal_idx]; 2504bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct qdio_buffer_element *sbale; 2505bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *fsf_req; 2506b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt unsigned long req_id; 2507bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig int idx; 2508bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2509bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { 2510bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2511bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig sbale = &sbal->element[idx]; 2512bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id = (unsigned long) sbale->addr; 2513b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id); 2514bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2515bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (!fsf_req) 2516bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig /* 2517bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Unknown request means that we have potentially memory 2518bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * corruption and must stop the machine immediately. 2519bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2520bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig panic("error: unknown req_id (%lx) on adapter %s.\n", 2521bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id, dev_name(&adapter->ccw_device->dev)); 2522bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 252342428f747a8a0db9c6de03e105932316defad65dSwen Schillig fsf_req->queue_req.sbal_response = sbal_idx; 252442428f747a8a0db9c6de03e105932316defad65dSwen Schillig fsf_req->queue_req.qdio_inb_usage = 2525564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_read(&qdio->resp_q.count); 2526bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(fsf_req); 2527bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2528bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) 2529bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig break; 2530bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 2531bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 2532