zfcp_fsf.c revision 01b047599ade30051bf6c14fbe64181d1fec3dfa
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> 135a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 149d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt#include <scsi/fc/fc_els.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "zfcp_ext.h" 164318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt#include "zfcp_fc.h" 17dcd20e2316cdc333dfdee09649dbe3642eb30e75Christof Schmitt#include "zfcp_dbf.h" 1834c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt#include "zfcp_qdio.h" 19b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt#include "zfcp_reqlist.h" 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_request_timeout_handler(unsigned long data) 22287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 23287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; 245ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 255ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsrth_1", NULL); 26287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 27287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 28287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, 29287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt unsigned long timeout) 30287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 31287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_fsf_request_timeout_handler; 32287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->adapter; 33287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + timeout; 34287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 35287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 36287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 37287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) 38287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 39287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt BUG_ON(!fsf_req->erp_action); 40287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_erp_timeout_handler; 41287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->erp_action; 42287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + 30 * HZ; 43287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 44287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 45287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* association between FSF command and FSF QTCB type */ 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 fsf_qtcb_type[] = { 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 63553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) 64553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 65c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u16 subtable = table >> 16; 66553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt u16 rule = table & 0xffff; 67ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; 68553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 69ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt if (subtable && subtable < ARRAY_SIZE(act_type)) 70553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 71ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied according to ACT rule type %s, " 72ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "rule %d\n", act_type[subtable], rule); 73553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 74553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 75553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, 76553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_port *port) 77553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 78553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 79553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 80ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to port 0x%016Lx\n", 817ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 82553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 83553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 845ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_access_denied(port, "fspad_1", req); 85553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 86553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 87553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 88553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, 89553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_unit *unit) 90553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 91553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 92553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 93ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to unit 0x%016Lx on port 0x%016Lx\n", 947ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 957ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 96553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 97553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 985ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsuad_1", req); 99553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 100553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 101553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 102553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) 103553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 104ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_err(&req->adapter->ccw_device->dev, "FCP device not " 105ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "operational because of an unsupported FC class\n"); 1065ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); 107553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 108553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 109553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_free - free memory used by fsf request 112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: pointer to struct zfcp_fsf_req 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_free(struct zfcp_fsf_req *req) 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->pool)) { 117a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 118a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); 119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(req, req->pool); 120dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 121dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 122dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens 123a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 124a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb); 125a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kfree(req); 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 130ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig unsigned long flags; 131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port; 134800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt int d_id = ntoh24(sr_buf->d_id); 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 136ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock_irqsave(&adapter->port_list_lock, flags); 137ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(port, &adapter->port_list, list) 138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (port->d_id == d_id) { 1395ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(port, 0, "fssrpc1", req); 140ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig break; 141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 142ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock_irqrestore(&adapter->port_list_lock, flags); 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1455ffd51a5e495a2a002efd523aef0001912b080bdSwen Schilligstatic void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id, 146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *link_down) 147aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin{ 148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 149698ec01635819c5ae60090bb4efcbeffc41642fbMartin Peschke 150c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) 151ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin return; 152ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 153ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); 15470932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt 155a2fa0aede07c9488239dcac1eae58233181c355aChristof Schmitt zfcp_scsi_schedule_rports_block(adapter); 156ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!link_down) 1582f8f3ed5fc566700cf45d422f4cf1624bd123d93Andreas Herrmann goto out; 159ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 160aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin switch (link_down->error_code) { 161aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_LIGHT: 162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 163ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is no light signal from the local " 164ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel cable\n"); 165aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 166aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WRAP_PLUG: 167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 168ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is a wrap plug instead of a fibre " 169ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "channel cable\n"); 170aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 171aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP: 172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 173ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent fibre channel node does not " 174ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "support FCP\n"); 175aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 176aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FIRMWARE_UPDATE: 177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 178ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device is suspended because of a " 179ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "firmware update\n"); 180553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt break; 181aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_INVALID_WWPN: 182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 183ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device detected a WWPN that is " 184ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "duplicate or not valid\n"); 185aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 186aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_NPIV_SUPPORT: 187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 188ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The fibre channel fabric does not support NPIV\n"); 189aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 190aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP_RESOURCES: 191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 192ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter cannot support more NPIV ports\n"); 193aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 194aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: 195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 196ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent switch cannot support " 197ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "more NPIV ports\n"); 198aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 199aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: 200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 201ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter could not log in to the " 202ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel fabric\n"); 203aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 204aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: 205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 206ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The WWPN assignment file on the FCP adapter " 207ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 208aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 209aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: 210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 211ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The mode table on the FCP adapter " 212ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 213aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 214aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: 215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 216ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "All NPIV ports on the FCP adapter have " 217ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "been assigned\n"); 218aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 219aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin default: 220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 221ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The link between the FCP adapter and " 222ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "the FC fabric is down\n"); 223aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_failed(adapter, id, req); 226aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin} 227aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *ldi = 232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (struct fsf_link_down_info *) &sr_buf->payload; 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: 2365ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi); 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FDISC_FAILED: 2395ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi); 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: 2425ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL); 243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig }; 244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) 247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 2525771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("dism", adapter->dbf, sr_buf); 253a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2585771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("read", adapter->dbf, sr_buf); 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_type) { 261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_PORT_CLOSED: 262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_port_closed(req); 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_INCOMING_ELS: 265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_incoming_els(req); 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SENSE_DATA_AVAIL: 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: 270ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_warn(&adapter->ccw_device->dev, 271ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The error threshold for checksum statistics " 272ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been exceeded\n"); 2735771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_berr(adapter->dbf, req); 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_DOWN: 276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_link_down(req); 277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_UP: 279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 280ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The local link has been restored\n"); 281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 2825ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, 283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 2885ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fssrh_2", req); 289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_NOTIFICATION_LOST: 291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) 2925ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_3", 2935ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) 2959eae07ef6bb5988163d8bb82cd952905db47b721Swen Schillig queue_work(adapter->work_queue, &adapter->scan_work); 296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_CFDC_UPDATED: 2985ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); 299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: 301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = sr_buf->payload.word[0]; 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 305a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_inc(&adapter->stat_miss); 3094544683a4b1d4e65ccca8c736bac56a195a5206bSwen Schillig queue_work(adapter->work_queue, &adapter->stat_work); 310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) 313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_FCP_RSP_AVAILABLE: 316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RETRY_POSSIBLE: 318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_COMMAND_ABORTED: 321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RECOM: 323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 324ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter reported a problem " 325ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "that cannot be recovered\n"); 3265ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); 327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* all non-return stats set FSFREQ_ERROR*/ 330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_UNKNOWN_COMMAND: 340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 341ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter does not recognize the command 0x%x\n", 342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command); 3435ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); 344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_qual_eval(req); 348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) 353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3585771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_response(req); 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 3614c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->prefix.prot_status) { 366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_GOOD: 367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_FSF_STATUS_PRESENTED: 368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_QTCB_VERSION_ERROR: 370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 371ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "QTCB version 0x%x not supported by FCP adapter " 372ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, 373ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt psq->word[0], psq->word[1]); 3745ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); 375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_ERROR_STATE: 377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_SEQ_NUMB_ERROR: 3785ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); 3794c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_UNSUPP_QTCB_TYPE: 382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 383ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The QTCB type is not supported by the FCP adapter\n"); 3845ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); 385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_HOST_CONNECTION_INITIALIZING: 387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, 388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_DUPLICATE_REQUEST_ID: 391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 392ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%Lx is an ambiguous request identifier\n", 393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (unsigned long long)qtcb->bottom.support.req_handle); 3945ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); 395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_LINK_DOWN: 3975ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fspse_5", 3985ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig &psq->link_down_info); 399452b505c5ada345103bdfdb39dc550df3ffe9eeaChristof Schmitt /* go through reopen to flush pending requests */ 4005ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); 401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_REEST_QUEUE: 403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 4045ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL, 405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 4095ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 4105ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fspse_8", req); 411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 414ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%x is not a valid transfer protocol status\n", 415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->prefix.prot_status); 4165ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); 417c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 418c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_complete - process completion of a FSF request 423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: The FSF request that has been completed. 424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * When a request has been completed either from the FCP adapter, 426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * or it has been dismissed due to a queue shutdown, this function 427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * is called to process the completion status and trigger further 428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * events related to the FSF request. 429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 430bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligstatic void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { 433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_handler(req); 434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 435c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_protstatus_eval(req); 439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_eval(req); 440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler(req); 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->erp_action) 443287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_notify(req->erp_action, 0); 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) 446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 448058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig complete(&req->completion); 449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 451bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 452bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_req_dismiss_all - dismiss all fsf requests 453bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 454bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * 455bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Never ever call this without shutting down the adapter first. 456bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Otherwise the adapter would continue using and corrupting s390 storage. 457bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Included BUG_ON() call to ensure this is done. 458bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * ERP is supposed to be the only user of this function. 459bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 460bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligvoid zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) 461bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 462bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *req, *tmp; 463bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig LIST_HEAD(remove_queue); 464bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 465bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); 466b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_move(adapter->req_list, &remove_queue); 467bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 468bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_for_each_entry_safe(req, tmp, &remove_queue, list) { 469bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&req->list); 470bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; 471bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(req); 472bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 473bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 474bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) 476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 4779d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config; 478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 4809d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fc_els_flogi *nsp, *plogi; 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4829d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt /* adjust pointers for missing command code */ 4839d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param 4849d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt - sizeof(u32)); 4859d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload 4869d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt - sizeof(u32)); 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 4919d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt fc_host_port_name(shost) = nsp->fl_wwpn; 4929d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt fc_host_node_name(shost) = nsp->fl_wwnn; 493800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt fc_host_port_id(shost) = ntoh24(bottom->s_id); 494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = bottom->fc_link_speed; 495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; 496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = bottom->adapter_type; 498faf4cd854203b26527d81e7e13d66e78774dad44Christof Schmitt adapter->timer_ticks = bottom->timer_interval & ZFCP_FSF_TIMER_INT_MASK; 4998d88cf3f3b9af4713642caeb221b6d6a42019001Christof Schmitt adapter->stat_read_buf_num = max(bottom->status_read_buf_num, 5008d88cf3f3b9af4713642caeb221b6d6a42019001Christof Schmitt (u16)FSF_STATUS_READS_RECOM); 501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 507800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt adapter->peer_d_id = ntoh24(bottom->peer_d_id); 5089d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwpn = plogi->fl_wwpn; 5099d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwnn = plogi->fl_wwnn; 510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 517dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 520ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 521ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 5225ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); 523c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 530553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 531553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 535553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5458a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 553ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 554ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 555ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 5565ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); 557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 571c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5735ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsecdh2", 574c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 576c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 5775ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); 578c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 579c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 587c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 589c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 590c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 591ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 592ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5935ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); 594c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 595c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 596c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 597c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 598ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 599ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 6005ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); 601c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 602c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 604c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 605c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 606c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 607c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 608c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 610c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 611c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 6129eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 6130282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { 614c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 6150282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6160282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt } else 617c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 618c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 619c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 6202d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types, 6212d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt FC_FC4_LIST_SIZE); 6222d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types, 6232d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt FC_FC4_LIST_SIZE); 624c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 626c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 636c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 637c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 638c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 6395ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsepdh1", 640c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 641aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 643c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 644d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 645a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) 646c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 647c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 648a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 649a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 650a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 651a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 652a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = kmalloc(sizeof(*req), GFP_ATOMIC); 653a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 654a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req)) 655c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 656a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 657c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 65888f2a977870af655296a682fe2a58c822cd25bb2Christof Schmitt req->pool = pool; 659c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 660c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 661c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 662a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) 663c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 664a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct fsf_qtcb *qtcb; 665c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 666c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 667c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 668c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 669a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); 670a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 671c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 672c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 673c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 674c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 675a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return qtcb; 676c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 677c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 678564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, 6791674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt u32 fsf_cmd, u32 sbtype, 6801674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt mempool_t *pool) 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 682564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 683a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 685c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 6861e9b16430ff4fd09408a74342d6b8338228e2f70Christof Schmitt return ERR_PTR(-ENOMEM); 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 689c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 693058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig init_completion(&req->completion); 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 695c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 69752bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt req->req_id = adapter->req_no; 698c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 699a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { 700a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 701a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); 702a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 703a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(NULL); 704a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 705a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req->qtcb)) { 706a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig zfcp_fsf_req_free(req); 707a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return ERR_PTR(-ENOMEM); 708a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig } 709a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 7105bdecd2248d4af6f3b311b4d8ca7f3f5f83a7191Christof Schmitt req->seq_no = adapter->fsf_req_seq_no; 711564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 717c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 7201674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_req_init(adapter->qdio, &req->qdio_req, req->req_id, sbtype, 7211674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req->qtcb, sizeof(struct fsf_qtcb)); 7221674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 723c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 726c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 727c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 729564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 730b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt int with_qtcb = (req->qtcb != NULL); 731e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt int req_id = req->req_id; 732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 733b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_add(adapter->req_list, req); 734c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 73534c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q.count); 736c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 73734c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt if (zfcp_qdio_send(qdio, &req->qdio_req)) { 738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 7393765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt /* lookup request again, list might have changed */ 740b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_find_rm(adapter->req_list, req_id); 7415ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); 742c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 743c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 744c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 746135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann if (with_qtcb) 747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 74852bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt adapter->req_no++; 749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 759564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_status_read(struct zfcp_qdio *qdio) 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 761564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 762c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 763c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 764c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 766564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 7676b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 768c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 769c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 7701674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 0, 771a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.status_read_req); 772025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 777a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); 778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 780c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 782c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 7841674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 7851674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, &req->qdio_req, sr_buf, sizeof(*sr_buf)); 7861674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 787059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 788c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 789c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 790c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 795a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 7985771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL); 799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 800564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 809c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 810c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 811c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8155ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 8165ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsafch1", req); 817c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 821c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8225ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); 823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 8305ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsafch3", req); 8314c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 8345ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fsafch4", req); 8354c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 838c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 8406f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 841dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 848c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 856c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 86163caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_unit *unit) 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 864564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 8658a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 866564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 8676b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 868c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 869564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, 8701674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 871564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_abort); 872633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 873633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 874c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 875633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 8762abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 877c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 878c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 879c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8811674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 883c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 884c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 885c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 888c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 889c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 891c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 892c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 893c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 894c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 895c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 896c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 897564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 898c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 901c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 903c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 9047c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_fsf_ct_els *ct = req->data; 905c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9077c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->status = -EINVAL; 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 9145771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_ct_response(req); 9157c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->status = 0; 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 918c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 924c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 9314c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 933c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 9345ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); 935dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 941c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 9467c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt if (ct->handler) 9477c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->handler(ct->handler_data); 948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9501674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmittstatic void zfcp_fsf_setup_ct_els_unchained(struct zfcp_qdio *qdio, 9511674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt struct zfcp_qdio_req *q_req, 952426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_req, 953426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_resp) 954426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 9551674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_req), sg_req->length); 9561674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_resp), sg_resp->length); 9571674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, q_req); 958426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 959426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 96039eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmittstatic int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, 96139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_req, 96201b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig struct scatterlist *sg_resp) 963c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 96442428f747a8a0db9c6de03e105932316defad65dSwen Schillig struct zfcp_adapter *adapter = req->adapter; 96542428f747a8a0db9c6de03e105932316defad65dSwen Schillig u32 feat = adapter->adapter_features; 966c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 96839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { 9691674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt if (!zfcp_qdio_sg_one_sbale(sg_req) || 9701674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt !zfcp_qdio_sg_one_sbale(sg_resp)) 97139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return -EOPNOTSUPP; 97239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 9731674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, 9741674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sg_req, sg_resp); 975426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return 0; 976426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt } 977426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 978426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt /* use single, unchained SBAL if it can hold the request */ 97930b6777b8931afc5f3aa42858fe917938b570f79Swen Schillig if (zfcp_qdio_sg_one_sbale(sg_req) && zfcp_qdio_sg_one_sbale(sg_resp)) { 9801674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, 9811674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sg_req, sg_resp); 98239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return 0; 98339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt } 98439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 98501b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, sg_req); 986c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 9879072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 988c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 9891674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_skip_to_last_sbale(&req->qdio_req); 990c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 99134c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, 99201b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig sg_resp); 993b1a58985853574346f1518531bdd82069501b317Christof Schmitt req->qtcb->bottom.support.resp_buf_length = bytes; 994c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 9959072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 99698fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt 997b1a58985853574346f1518531bdd82069501b317Christof Schmitt return 0; 998b1a58985853574346f1518531bdd82069501b317Christof Schmitt} 999b1a58985853574346f1518531bdd82069501b317Christof Schmitt 1000b1a58985853574346f1518531bdd82069501b317Christof Schmittstatic int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, 1001b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_req, 1002b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_resp, 100301b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig unsigned int timeout) 1004b1a58985853574346f1518531bdd82069501b317Christof Schmitt{ 1005b1a58985853574346f1518531bdd82069501b317Christof Schmitt int ret; 1006b1a58985853574346f1518531bdd82069501b317Christof Schmitt 100701b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp); 1008b1a58985853574346f1518531bdd82069501b317Christof Schmitt if (ret) 1009b1a58985853574346f1518531bdd82069501b317Christof Schmitt return ret; 1010b1a58985853574346f1518531bdd82069501b317Christof Schmitt 101198fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt /* common settings for ct/gs and els requests */ 101251375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig if (timeout > 255) 101351375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig timeout = 255; /* max value accepted by hardware */ 101498fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.service_class = FSF_CLASS_3; 101551375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig req->qtcb->bottom.support.timeout = timeout; 101651375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig zfcp_fsf_start_timer(req, (timeout + 10) * HZ); 1017c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1018c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1022c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 1023c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 1024c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10267c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmittint zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, 102751375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig struct zfcp_fsf_ct_els *ct, mempool_t *pool, 102851375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig unsigned int timeout) 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1030564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 1031c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1034564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 10356b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10381674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, 10391674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE_READ, pool); 104009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1041025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1043c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10443f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 10453f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 104609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 104701b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, timeout); 1048553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1051c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 10525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 1053c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1054c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 10557c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt zfcp_dbf_san_ct_request(req, wka_port->d_id); 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1058c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1059c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1063c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1065c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1066564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1067c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1070c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10727c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_fsf_ct_els *send_els = req->data; 1073c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1074c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1076c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1078c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 10835771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_response(req); 1084c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1094c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1104dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt if (port) 1105dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt zfcp_fsf_access_denied_port(req, port); 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1107c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1115aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1121c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1122c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 11237c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmittint zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, 112451375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig struct zfcp_fsf_ct_els *els, unsigned int timeout) 1125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 11277c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_qdio *qdio = adapter->qdio; 1128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1130564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 11316b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 113309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 11341674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, 11351674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE_READ, NULL); 113609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1137025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1140c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 114209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 114301b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig 114401b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2); 114501b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig 114601b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, timeout); 114744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig 1148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1150c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11517c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt hton24(req->qtcb->bottom.support.d_id, d_id); 1152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11555771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_request(req); 1156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1165c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1166564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1170c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1173564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1176564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 11776b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 117909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1180564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 11811674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1182564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 118309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1184025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 118909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 11901674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1193aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1194aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 11959eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1196aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1199e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1205e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1208564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 120952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 121052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1212564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, 1213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 121452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 1215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1218564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 12196b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1220ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12221674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 12231674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, NULL); 122409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1225025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1227ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 122852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 122952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 12301674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 1231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 123252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 123452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 123552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 123652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 123752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 123852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 123952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 124152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1244564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1245553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1246058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 124752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1249ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 125052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1251ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1252564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1258aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1263564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1267564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 126852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1270564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 12716b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 127309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1274564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 12751674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1276564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 127709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1278025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1281aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1282aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 128309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 12841674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1288e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 128952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1290287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1294e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 129552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1297564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 129852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 129952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 130052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 130152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 130252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1303564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig * @qdio: pointer to struct zfcp_qdio 1304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 130652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1307564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, 1308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 130952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 1310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 131252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1313564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 131452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 131552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1316564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 13176b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1318ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 13201674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 13211674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, NULL); 132209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1323025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1325ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 132852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 133052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 13311674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 133252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1336564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1337ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1338553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1339058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 1340058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig 1341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 1344ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1345ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1346564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1347ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 13549d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fc_els_flogi *plogi; 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1357a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann goto out; 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1367ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 13687ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig "remote port 0x%016Lx\n", 13697ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 13705ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_failed(port, "fsoph_1", req); 1371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1386d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1387d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1388d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14049d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; 140539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (req->qtcb->bottom.support.els1_length >= 14069d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt FSF_PLOGI_MIN_LEN) 1407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1413a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann 1414a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermannout: 1415615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&port->dev); 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1418c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1419c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1425564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1426a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann struct zfcp_port *port = erp_action->port; 1427564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_fsf_req *req; 1428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1430564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 14316b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1434564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 14351674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1436564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 143709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1438025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 144309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 14441674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1447800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt hton24(req->qtcb->bottom.support.d_id, port->d_id); 1448a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->data = port; 1449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1450e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1451615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt get_device(&port->dev); 1452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1453287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1454c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1457e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 1458615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&port->dev); 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1461564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1465c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 147044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 14745ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); 1475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14805ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_port_status(port, "fscph_2", req, 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1494564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1498564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 14996b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1502564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 15031674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1504564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 150509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1506025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 151109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 15121674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1518e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1520287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1523c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1524e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1527564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15315ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) 15325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1533bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 15345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 15355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15365ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { 1537bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 15385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15395ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15405ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig switch (header->fsf_status) { 15425ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 15435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig dev_warn(&req->adapter->ccw_device->dev, 15445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig "Opening WKA port 0x%x failed\n", wka_port->d_id); 1545dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 15465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 15475ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1548dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 15495ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ACCESS_DENIED: 1550bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 15515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig break; 15525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_GOOD: 15535ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->handle = header->port_handle; 155427f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig /* fall through */ 155527f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig case FSF_PORT_ALREADY_OPEN: 1556bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; 15575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15585ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 15595ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 15605ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 15615ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15625ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 15635ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_open_wka_port - create and send open wka-port request 1564bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: pointer to struct zfcp_fc_wka_port 15655ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 15665ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1567bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) 15685ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1569564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 15705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 15715ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 15725ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1573564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 15746b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 15755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15765ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1577564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 15781674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1579564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 158009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 15815ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 15825ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 15835ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15855ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 158609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 15871674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 15885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15895ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_open_wka_port_handler; 1590800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); 15915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 15925ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15935ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 15945ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 15955ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 15965ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 15975ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1598564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 15995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16015ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16025ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) 16035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1604bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 16055ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { 16075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16085ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); 16095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16105ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1611bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 16125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16155ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_close_wka_port - create and send close wka port request 1617bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: WKA port to open 16185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1620bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) 16215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1622564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 16235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1626564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 16276b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 16285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1630564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 16311674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1632564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 163309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 16345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16365ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16375ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 163909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 16401674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 16415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16425ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_close_wka_port_handler; 16435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 16455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16475ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16485ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16495ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16505ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1651564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 16525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16535ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16545ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1655c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1657c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1658c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1662a5b11dda12ed7e3a79180b10ad6209a40a02989fChristof Schmitt return; 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 16665ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); 1667c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 16735c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 16745c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 16755c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1676ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock(&port->unit_list_lock); 1677ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(unit, &port->unit_list, list) 16785c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 16795c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 1680ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 1681dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig zfcp_erp_port_boxed(port, "fscpph2", req); 16824c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1687c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1689c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1698ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock(&port->unit_list_lock); 1699ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(unit, &port->unit_list, list) 1700c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1701c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 1702ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1707c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1708c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1709c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1710c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1714564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1717c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1718564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 17196b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1722564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, 17231674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1724564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 172509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1726025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1727c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1729c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 173109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 17321674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1734c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1735c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1736c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1737c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1738e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1740287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1743c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1744e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1747564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1759aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 176244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1765b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 17735ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); 1774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1780553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 17835ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsouh_2", req); 17844c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1788553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1789ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1790ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 17917ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 17927ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn, 1793ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1794ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1796553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1797553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 17985ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsouh_3", req); 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1805ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1806ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 18077ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18087ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18095ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_4", req); 1810c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1811c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 18176f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 1818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1828aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1829aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1830aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 18316fcf41d1d8796f41b893754324704e23971c2ea1Christof Schmitt !zfcp_ccw_priv_sch(adapter)) { 1832aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1833aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1834aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1835aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1836aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1844c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1845ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1846ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 18477ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18487ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1853ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1854ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1855ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 18567ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18577ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18585ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_5", req); 1859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18605ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1863ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1864ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 186527c3f0a6e4521ba0ff6e76da54969f0bf430f53aChristof Schmitt "0x%016Lx)\n", 18667ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18677ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18685ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_7", req); 1869c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18705ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1877c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1878c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1879c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1880c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1882c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1884c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1885564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 1886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1888c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1889564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 18906b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1893564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, 18941674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1895a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.erp_req); 189609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1897025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1898c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1899c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1900c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1901c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 190209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 19031674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1905c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1906c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 1907c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 1908c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1910e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1911c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 1913c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 1914c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1915287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1916c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1918c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1919e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1922564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1926c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1928c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 193144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1933c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 19355ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); 1936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 19395ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); 1940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 19435ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fscuh_3", req); 19444c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 1947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 19496f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 1950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1952c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1963c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 1964c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 1965c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1969564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1970c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1971c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1973564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 19746b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 197609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1977564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, 19781674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1979564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 198009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1981025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1982c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1983c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1984c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 19851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 198609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 19871674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1989c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1990c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 1991c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 1992c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1994e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1995fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 1996287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1997c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1998c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 1999c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2000e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 2001c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2002c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2003564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2007c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 2008c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2009c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 2010c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 2011c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 2012c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 2013c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2014d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmittstatic void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) 2015c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2016d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct fsf_qual_latency_info *lat_in; 2017d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct latency_cont *lat = NULL; 2018c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 2019d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct zfcp_blk_drv_data blktrc; 2020d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt int ticks = req->adapter->timer_ticks; 2021c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2022d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; 2023c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2024d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags = 0; 2025d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; 2026d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 2027d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_REQ_ERROR; 202834c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt blktrc.inb_usage = req->qdio_req.qdio_inb_usage; 202934c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt blktrc.outb_usage = req->qdio_req.qdio_outb_usage; 2030d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 20315bbf297cc652713a0a6511004b8d4c1cc21a3b02Christof Schmitt if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA && 20325bbf297cc652713a0a6511004b8d4c1cc21a3b02Christof Schmitt !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 2033d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_LAT_VALID; 2034d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.channel_lat = lat_in->channel_lat * ticks; 2035d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.fabric_lat = lat_in->fabric_lat * ticks; 2036d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 2037d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt switch (req->qtcb->bottom.io.data_direction) { 2038d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_READ: 2039d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.read; 2040d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2041d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_WRITE: 2042d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.write; 2043d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2044d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_CMND: 2045d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.cmd; 2046d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2047d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2049d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (lat) { 2050d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_lock(&unit->latencies.lock); 2051d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); 2052d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); 2053d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat->counter++; 2054d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_unlock(&unit->latencies.lock); 2055d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 20560997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl } 20570997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2058d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, 2059d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt sizeof(blktrc)); 20600997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 20610997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2062c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 20631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20640ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig struct scsi_cmnd *scpnt; 20654318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 20661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 20671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2068c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 2069c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 20700ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig scpnt = req->data; 20710ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig if (unlikely(!scpnt)) { 20720ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 20730ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig return; 20740ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig } 20750ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig 2076c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 20774c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); 20781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 20791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20814318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 20824318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2084c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 20855bbf297cc652713a0a6511004b8d4c1cc21a3b02Christof Schmitt zfcp_fsf_req_trace(req, scpnt); 2086ab72528a4498251a702fa7693b51b9311b2432f8Christof Schmitt zfcp_dbf_scsi_result(req->adapter->dbf, scpnt, req); 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 20891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2096c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2099c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 21001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21014318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 21024318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_rsp_info *rsp_info; 21031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21044318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 21054318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; 21064318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt 21074318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt if ((rsp_info->rsp_code != FCP_TMF_CMPL) || 2108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2118c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2121c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2122c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 21241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 21295ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); 2130c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 21345ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); 2135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 21361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2137c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2140c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2143c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2145ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2146ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 21487ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 21497ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 21505ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", 21515ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2156ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2157ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 21597ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 21607ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 21615ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", 21625ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2165c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 21665ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fssfch5", req); 21674c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2169c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 21705ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fssfch6", req); 21714c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 21766f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 2177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 21791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2183c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2186615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&unit->dev); 2187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 21881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 219563caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittint zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, 219663caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct scsi_cmnd *scsi_cmnd) 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 21994318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2200bc90c8632f63cd94246e3fb6f1b6d7ecba48f1a0Christof Schmitt unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; 2201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 220263caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 2203564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 22081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2209564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock(&qdio->req_q_lock); 2210564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (atomic_read(&qdio->req_q.count) <= 0) { 2211564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 2212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22138fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt } 221409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 22151674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) 22161674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sbtype = SBAL_FLAGS0_TYPE_WRITE; 22171674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 2218564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 22191674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sbtype, adapter->pool.scsi_req); 222009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2221025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 222609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 22334318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 22511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 2253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22561674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt get_device(&unit->dev); 22571674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 22584318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 22594318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); 22601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22611674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, 226201b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig scsi_sglist(scsi_cmnd)); 226301b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig if (unlikely(real_bytes < 0)) 2264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2273615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&unit->dev); 2274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2277564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock(&qdio->req_q_lock); 2278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 22861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 228763caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) 22881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 22904318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2291564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 22921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 22961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2297564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 22986b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 2299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 230009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2301564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 23021674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE, 2303564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_req); 230409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2305633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 2306633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 2307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2308633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 23091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 23174318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 23191674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 23201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23214318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 23224318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags); 23231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2331564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 23341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 23371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 23441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 23471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2348564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 2349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2367564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 23686b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 2369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23711674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL); 2372025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 23781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 23828a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 238301b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg); 238401b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig 2385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2393564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 23948a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2396058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 2397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 23981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 24001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2401bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2402bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 2403bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO 2404bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 2405bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @sbal_idx: response queue index of SBAL to be processed 2406bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2407564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligvoid zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) 2408bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 2409564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 2410564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct qdio_buffer *sbal = qdio->resp_q.sbal[sbal_idx]; 2411bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct qdio_buffer_element *sbale; 2412bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *fsf_req; 2413b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt unsigned long req_id; 2414bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig int idx; 2415bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2416bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { 2417bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2418bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig sbale = &sbal->element[idx]; 2419bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id = (unsigned long) sbale->addr; 2420b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id); 2421bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2422bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (!fsf_req) 2423bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig /* 2424bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Unknown request means that we have potentially memory 2425bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * corruption and must stop the machine immediately. 2426bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2427bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig panic("error: unknown req_id (%lx) on adapter %s.\n", 2428bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id, dev_name(&adapter->ccw_device->dev)); 2429bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 243034c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt fsf_req->qdio_req.sbal_response = sbal_idx; 243134c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt fsf_req->qdio_req.qdio_inb_usage = 2432564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_read(&qdio->resp_q.count); 2433bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(fsf_req); 2434bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2435bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) 2436bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig break; 2437bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 2438bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 2439