zfcp_fsf.c revision 30b6777b8931afc5f3aa42858fe917938b570f79
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; 498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->timer_ticks = bottom->timer_interval; 49964deb6efdc5504ce97b5c1c6f281fffbc150bd93Christof Schmitt adapter->stat_read_buf_num = max(bottom->status_read_buf_num, (u16)16); 500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 506800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt adapter->peer_d_id = ntoh24(bottom->peer_d_id); 5079d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwpn = plogi->fl_wwpn; 5089d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwnn = plogi->fl_wwnn; 509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 516dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 519ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 520ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 5215ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); 522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 529553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 530553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 534553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5448a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 552ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 553ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 554ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 5555ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); 556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5725ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsecdh2", 573c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 575c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 5765ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); 577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 578c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 589c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 590ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 591ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5925ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); 593c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 594c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 595c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 596c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 597ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 598ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5995ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); 600c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 601c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 603c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 604c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 605c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 606c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 607c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 609c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 610c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 6119eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 6120282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { 613c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 6140282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6150282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt } else 616c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 617c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 618c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 6192d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types, 6202d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt FC_FC4_LIST_SIZE); 6212d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types, 6222d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt FC_FC4_LIST_SIZE); 623c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 626c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 636c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 637c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 6385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsepdh1", 639c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 640aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 642c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 643d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 644a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) 645c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 646c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 647a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 648a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 649a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 650a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 651a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = kmalloc(sizeof(*req), GFP_ATOMIC); 652a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 653a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req)) 654c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 655a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 656c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 65788f2a977870af655296a682fe2a58c822cd25bb2Christof Schmitt req->pool = pool; 658c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 659c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 660c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 661a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) 662c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 663a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct fsf_qtcb *qtcb; 664c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 665c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 666c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 667c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 668a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); 669a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 671c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 672c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 673c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 674a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return qtcb; 675c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 676c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 677564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, 6781674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt u32 fsf_cmd, u32 sbtype, 6791674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt mempool_t *pool) 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 681564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 682a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 684c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 6851e9b16430ff4fd09408a74342d6b8338228e2f70Christof Schmitt return ERR_PTR(-ENOMEM); 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 687c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 692058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig init_completion(&req->completion); 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 695c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 69652bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt req->req_id = adapter->req_no; 697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 698a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { 699a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 700a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); 701a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 702a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(NULL); 703a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 704a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req->qtcb)) { 705a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig zfcp_fsf_req_free(req); 706a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return ERR_PTR(-ENOMEM); 707a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig } 708a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 7095bdecd2248d4af6f3b311b4d8ca7f3f5f83a7191Christof Schmitt req->seq_no = adapter->fsf_req_seq_no; 710564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 711c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 717c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 7191674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_req_init(adapter->qdio, &req->qdio_req, req->req_id, sbtype, 7201674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req->qtcb, sizeof(struct fsf_qtcb)); 7211674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 722c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { 723c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 724c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 725c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 726951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 727c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 730c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 733564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 734b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt int with_qtcb = (req->qtcb != NULL); 735e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt int req_id = req->req_id; 736c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 737b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_add(adapter->req_list, req); 738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 73934c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q.count); 740c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 74134c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt if (zfcp_qdio_send(qdio, &req->qdio_req)) { 742c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 7433765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt /* lookup request again, list might have changed */ 744b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_find_rm(adapter->req_list, req_id); 7455ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); 746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 748c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 750135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann if (with_qtcb) 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 75252bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt adapter->req_no++; 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 763564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_status_read(struct zfcp_qdio *qdio) 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 765564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 766c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 767c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 768c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 770564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 7716b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 772c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 7741674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 0, 775a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.status_read_req); 776025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 781a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); 782c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 785c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 786c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 7881674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 7891674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, &req->qdio_req, sr_buf, sizeof(*sr_buf)); 7901674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 791059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 799a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 8025771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL); 803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 804564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 809c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 810c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 811c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 816c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8195ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 8205ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsafch1", req); 821c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8265ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); 827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 8345ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsafch3", req); 8354c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 8385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fsafch4", req); 8394c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 842c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 8446f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 845dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 86563caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_unit *unit) 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 868564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 8698a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 870564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 8716b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 872c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 873564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, 8741674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 875564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_abort); 876633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 877633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 878c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 879633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 8802abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 881c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 882c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 883c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8851674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 888c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 889c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 891c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 892c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 893c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 894c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 895c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 896c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 897c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 898c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 899c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 900c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 901564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 902c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 905c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 907c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 9087c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_fsf_ct_els *ct = req->data; 909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9117c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->status = -EINVAL; 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 913c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 9185771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_ct_response(req); 9197c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->status = 0; 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 922c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 928c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 9354c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 9385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); 939dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 945c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 9507c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt if (ct->handler) 9517c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->handler(ct->handler_data); 952c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9541674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmittstatic void zfcp_fsf_setup_ct_els_unchained(struct zfcp_qdio *qdio, 9551674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt struct zfcp_qdio_req *q_req, 956426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_req, 957426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_resp) 958426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 9591674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_req), sg_req->length); 9601674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_resp), sg_resp->length); 9611674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, q_req); 962426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 963426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 96439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmittstatic int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, 96539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_req, 96639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_resp, 96739eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt int max_sbals) 968c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 96942428f747a8a0db9c6de03e105932316defad65dSwen Schillig struct zfcp_adapter *adapter = req->adapter; 97042428f747a8a0db9c6de03e105932316defad65dSwen Schillig u32 feat = adapter->adapter_features; 971c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 972c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 97339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { 9741674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt if (!zfcp_qdio_sg_one_sbale(sg_req) || 9751674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt !zfcp_qdio_sg_one_sbale(sg_resp)) 97639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return -EOPNOTSUPP; 97739eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 9781674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, 9791674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sg_req, sg_resp); 980426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return 0; 981426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt } 982426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 983426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt /* use single, unchained SBAL if it can hold the request */ 98430b6777b8931afc5f3aa42858fe917938b570f79Swen Schillig if (zfcp_qdio_sg_one_sbale(sg_req) && zfcp_qdio_sg_one_sbale(sg_resp)) { 9851674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, 9861674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sg_req, sg_resp); 98739eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return 0; 98839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt } 98939eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 99034c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, 991c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_req, max_sbals); 992c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 9939072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 994c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 9951674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_skip_to_last_sbale(&req->qdio_req); 996c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 99734c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, 998c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_resp, max_sbals); 999b1a58985853574346f1518531bdd82069501b317Christof Schmitt req->qtcb->bottom.support.resp_buf_length = bytes; 1000c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 10019072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 100298fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt 1003b1a58985853574346f1518531bdd82069501b317Christof Schmitt return 0; 1004b1a58985853574346f1518531bdd82069501b317Christof Schmitt} 1005b1a58985853574346f1518531bdd82069501b317Christof Schmitt 1006b1a58985853574346f1518531bdd82069501b317Christof Schmittstatic int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, 1007b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_req, 1008b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_resp, 100951375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig int max_sbals, unsigned int timeout) 1010b1a58985853574346f1518531bdd82069501b317Christof Schmitt{ 1011b1a58985853574346f1518531bdd82069501b317Christof Schmitt int ret; 1012b1a58985853574346f1518531bdd82069501b317Christof Schmitt 1013b1a58985853574346f1518531bdd82069501b317Christof Schmitt ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp, max_sbals); 1014b1a58985853574346f1518531bdd82069501b317Christof Schmitt if (ret) 1015b1a58985853574346f1518531bdd82069501b317Christof Schmitt return ret; 1016b1a58985853574346f1518531bdd82069501b317Christof Schmitt 101798fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt /* common settings for ct/gs and els requests */ 101851375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig if (timeout > 255) 101951375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig timeout = 255; /* max value accepted by hardware */ 102098fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.service_class = FSF_CLASS_3; 102151375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig req->qtcb->bottom.support.timeout = timeout; 102251375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig zfcp_fsf_start_timer(req, (timeout + 10) * HZ); 1023c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1024c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1028c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 1029c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 1030c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10327c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmittint zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, 103351375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig struct zfcp_fsf_ct_els *ct, mempool_t *pool, 103451375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig unsigned int timeout) 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1036564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 1037c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1038c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1040564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 10416b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10441674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, 10451674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE_READ, pool); 104609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1047025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1048c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1049c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10503f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 10513f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 105209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1053b1a58985853574346f1518531bdd82069501b317Christof Schmitt ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, 10541674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt ZFCP_FSF_MAX_SBALS_PER_REQ, timeout); 1055553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1058c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 10595ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 1060c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 10627c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt zfcp_dbf_san_ct_request(req, wka_port->d_id); 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1065c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1066c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1068c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1070c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1071c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1072c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1073564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1074c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1077c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10797c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_fsf_ct_els *send_els = req->data; 1080c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1081c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1083c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1085c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 10905771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_response(req); 1091c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1094c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1101c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1111dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt if (port) 1112dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt zfcp_fsf_access_denied_port(req, port); 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1118c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1122aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 11307c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmittint zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, 113151375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig struct zfcp_fsf_ct_els *els, unsigned int timeout) 1132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 11347c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_qdio *qdio = adapter->qdio; 1135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1136c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1137564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 11386b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 114009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 11411674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, 11421674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE_READ, NULL); 114309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1144025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1145c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 114909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 115051375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, 2, timeout); 115144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig 1152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11557c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt hton24(req->qtcb->bottom.support.d_id, d_id); 1156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11595771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_request(req); 1160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1165c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1169c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1170564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1171c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1177564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1180564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 11816b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 118309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1184564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 11851674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1186564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 118709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1188025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 119309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 11941674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1197aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1198aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 11999eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1200aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1203e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1205287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1209e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1212564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 121352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 121452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1216564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, 1217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 121852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 1219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1222564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 12236b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1224ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12261674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 12271674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, NULL); 122809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1229025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1231ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 123252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 123352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 12341674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 1235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 123652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 123852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 123952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 124052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 124152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 124252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 124352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 124552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1248564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1249553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1250058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 125152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1253ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 125452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1255ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1256564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1262aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1267564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1271564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 127252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1274564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 12756b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 127709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1278564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 12791674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1280564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 128109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1282025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1285aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1286aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 128709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 12881674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1292e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 129352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1294287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1298e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 129952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1301564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 130252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 130352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 130452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 130552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 130652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1307564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig * @qdio: pointer to struct zfcp_qdio 1308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 131052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1311564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, 1312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 131352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 1314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 131652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1317564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 131852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 131952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1320564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 13216b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1322ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 13241674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 13251674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, NULL); 132609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1327025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1329ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 133252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 133452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 13351674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 133652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1340564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1341ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1342553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1343058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 1344058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig 1345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 1348ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1349ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1350564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1351ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 13589d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fc_els_flogi *plogi; 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1361a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann goto out; 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1371ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 13727ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig "remote port 0x%016Lx\n", 13737ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 13745ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_failed(port, "fsoph_1", req); 1375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1390d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1391d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1392d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14089d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; 140939eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (req->qtcb->bottom.support.els1_length >= 14109d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt FSF_PLOGI_MIN_LEN) 1411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1417a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann 1418a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermannout: 1419615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&port->dev); 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1429564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1430a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann struct zfcp_port *port = erp_action->port; 1431564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_fsf_req *req; 1432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1434564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 14356b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1438564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 14391674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1440564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 144109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1442025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 144709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 14481674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1451800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt hton24(req->qtcb->bottom.support.d_id, port->d_id); 1452a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->data = port; 1453c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1454e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1455615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt get_device(&port->dev); 1456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1457287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1461e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 1462615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&port->dev); 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1465564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 147444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 14785ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); 1479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14845ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_port_status(port, "fscph_2", req, 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1498564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1502564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 15036b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1506564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 15071674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1508564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 150909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1510025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 151509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 15161674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1522e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1523c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1524287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1527c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1528e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1531564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) 15365ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1537bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 15385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 15395ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15405ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { 1541bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 15425ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig switch (header->fsf_status) { 15465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 15475ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig dev_warn(&req->adapter->ccw_device->dev, 15485ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig "Opening WKA port 0x%x failed\n", wka_port->d_id); 1549dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 15505ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 15515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1552dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 15535ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ACCESS_DENIED: 1554bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 15555ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig break; 15565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_GOOD: 15575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->handle = header->port_handle; 155827f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig /* fall through */ 155927f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig case FSF_PORT_ALREADY_OPEN: 1560bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; 15615ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15625ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 15635ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 15645ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 15655ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15665ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 15675ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_open_wka_port - create and send open wka-port request 1568bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: pointer to struct zfcp_fc_wka_port 15695ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 15705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1571bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) 15725ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1573564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 15745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 15755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 15765ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1577564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 15786b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 15795ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15805ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1581564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 15821674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1583564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 158409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 15855ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 15865ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 15875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15895ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 159009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 15911674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 15925ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15935ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_open_wka_port_handler; 1594800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); 15955ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 15965ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15975ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 15985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 15995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16015ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1602564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 16035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16055ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) 16075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1608bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 16095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16105ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { 16115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16125ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); 16135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1615bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 16165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_close_wka_port - create and send close wka port request 1621bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: WKA port to open 16225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1624bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) 16255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1626564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 16275ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1630564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 16316b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 16325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16335ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1634564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 16351674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1636564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 163709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 16385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16395ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16405ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16425ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 164309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 16441674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 16455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_close_wka_port_handler; 16475ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16485ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 16495ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16505ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16535ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16545ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1655564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 16565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16585ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1659c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1661c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1662c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1665c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1666a5b11dda12ed7e3a79180b10ad6209a40a02989fChristof Schmitt return; 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 16705ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); 1671c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1674c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 16775c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 16785c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 16795c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1680ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock(&port->unit_list_lock); 1681ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(unit, &port->unit_list, list) 16825c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 16835c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 1684ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 1685dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig zfcp_erp_port_boxed(port, "fscpph2", req); 16864c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1693c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1702ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock(&port->unit_list_lock); 1703ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(unit, &port->unit_list, list) 1704c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1705c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 1706ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1711c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1718564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1720c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1721c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1722564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 17236b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1726564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, 17271674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1728564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 172909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1730025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1733c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 173509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 17361674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1740c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1742e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1743c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1744287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1748e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1751564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1762c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1763aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 176644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1769b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 17775ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); 1778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1782c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1784553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 17875ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsouh_2", req); 17884c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1792553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1793ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1794ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 17957ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 17967ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn, 1797ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1798ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1800553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1801553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 18025ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsouh_3", req); 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1809ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1810ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 18117ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18127ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18135ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_4", req); 1814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1816c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 18216f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 1822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1832aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1833aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1834aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 18356fcf41d1d8796f41b893754324704e23971c2ea1Christof Schmitt !zfcp_ccw_priv_sch(adapter)) { 1836aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1837aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1838aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1839aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1840aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1848c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1849ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1850ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 18517ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18527ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1856c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1857ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1858ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1859ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 18607ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18617ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18625ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_5", req); 1863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18645ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1866c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1867ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1868ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 186927c3f0a6e4521ba0ff6e76da54969f0bf430f53aChristof Schmitt "0x%016Lx)\n", 18707ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18717ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18725ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_7", req); 1873c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18745ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1881c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1882c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1883c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1884c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1888c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1889564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 1890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1891c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1892c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1893564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 18946b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1897564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, 18981674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1899a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.erp_req); 190009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1901025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1902c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1903c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1904c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1905c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 190609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 19071674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1910c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 1911c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 1912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1913c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1914e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1916c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 1917c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 1918c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1919287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1920c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1922c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1923e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1925c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1926564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 193544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 19361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 19381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 19395ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); 1940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 19435ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); 1944c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 19475ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fscuh_3", req); 19484c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 1951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 19521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 19536f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 1954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 1968c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 1969c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1971c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1973564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1974c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1975c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1977564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 19786b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 19791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 198009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1981564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, 19821674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1983564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 198409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1985025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1986c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1987c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1988c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 199009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 19911674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1994c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 1995c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 1996c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1997c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1998e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1999fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 2000287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 2001c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2002c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 2003c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2004e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 2005c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2006c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2007564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2008c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2011c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 2012c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2013c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 2014c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 2015c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 2016c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 2017c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2018d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmittstatic void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) 2019c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2020d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct fsf_qual_latency_info *lat_in; 2021d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct latency_cont *lat = NULL; 2022c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 2023d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct zfcp_blk_drv_data blktrc; 2024d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt int ticks = req->adapter->timer_ticks; 2025c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2026d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; 2027c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2028d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags = 0; 2029d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; 2030d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 2031d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_REQ_ERROR; 203234c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt blktrc.inb_usage = req->qdio_req.qdio_inb_usage; 203334c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt blktrc.outb_usage = req->qdio_req.qdio_outb_usage; 2034d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 20355bbf297cc652713a0a6511004b8d4c1cc21a3b02Christof Schmitt if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA && 20365bbf297cc652713a0a6511004b8d4c1cc21a3b02Christof Schmitt !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 2037d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_LAT_VALID; 2038d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.channel_lat = lat_in->channel_lat * ticks; 2039d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.fabric_lat = lat_in->fabric_lat * ticks; 2040d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 2041d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt switch (req->qtcb->bottom.io.data_direction) { 2042d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_READ: 2043d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.read; 2044d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2045d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_WRITE: 2046d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.write; 2047d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2048d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_CMND: 2049d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.cmd; 2050d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2051d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2053d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (lat) { 2054d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_lock(&unit->latencies.lock); 2055d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); 2056d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); 2057d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat->counter++; 2058d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_unlock(&unit->latencies.lock); 2059d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 20600997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl } 20610997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2062d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, 2063d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt sizeof(blktrc)); 20640997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 20650997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2066c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 20671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20680ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig struct scsi_cmnd *scpnt; 20694318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 20711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2072c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 2073c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 20740ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig scpnt = req->data; 20750ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig if (unlikely(!scpnt)) { 20760ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 20770ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig return; 20780ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig } 20790ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig 2080c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 20814c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20854318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 20864318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2088c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 20895bbf297cc652713a0a6511004b8d4c1cc21a3b02Christof Schmitt zfcp_fsf_req_trace(req, scpnt); 2090ab72528a4498251a702fa7693b51b9311b2432f8Christof Schmitt zfcp_dbf_scsi_result(req->adapter->dbf, scpnt, req); 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 20991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2100c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2103c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 21041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21054318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 21064318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_rsp_info *rsp_info; 21071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21084318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 21094318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; 21104318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt 21114318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt if ((rsp_info->rsp_code != FCP_TMF_CMPL) || 2112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2118c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2121c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2122c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 21281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2130c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 21335ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); 2134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2136c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2137c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 21385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); 2139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2145c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2149ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2150ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2151c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 21527ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 21537ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 21545ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", 21555ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2160ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2161ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 21637ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 21647ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 21655ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", 21665ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2169c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 21705ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fssfch5", req); 21714c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 21745ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fssfch6", req); 21754c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 21806f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 2181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2190615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&unit->dev); 2191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 219963caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittint zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, 220063caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct scsi_cmnd *scsi_cmnd) 22011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 22034318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2204bc90c8632f63cd94246e3fb6f1b6d7ecba48f1a0Christof Schmitt unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; 2205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 220663caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 2207564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 22081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 22121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2213564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock(&qdio->req_q_lock); 2214564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (atomic_read(&qdio->req_q.count) <= 0) { 2215564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 2216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22178fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt } 221809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 22191674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) 22201674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sbtype = SBAL_FLAGS0_TYPE_WRITE; 22211674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 2222564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 22231674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sbtype, adapter->pool.scsi_req); 222409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2225025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 223009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 22374318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 22491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 22551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 2257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22601674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt get_device(&unit->dev); 22611674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 22624318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 22634318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); 22641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22651674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, 2266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_sglist(scsi_cmnd), 22671674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt ZFCP_FSF_MAX_SBALS_PER_REQ); 2268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(real_bytes < 0)) { 22691674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt if (req->qdio_req.sbal_number >= ZFCP_FSF_MAX_SBALS_PER_REQ) { 2270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 2271ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Oversize data package, unit 0x%016Lx " 2272ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "on port 0x%016Lx closed\n", 22737ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22747ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22755ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req); 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EINVAL; 2277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2288615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&unit->dev); 2289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2292564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock(&qdio->req_q_lock); 2293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 22941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 23011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 230263caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) 23031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 23054318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2306564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 23071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 23111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2312564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 23136b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 2314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 231509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2316564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 23171674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE, 2318564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_req); 231909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2320633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 2321633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 2322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2323633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 23241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 23324318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 23341674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 23351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23364318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 23374318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags); 23381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2346564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 23491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 23521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 23591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 23621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2363564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 2364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2382564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 23836b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 2384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23861674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL); 2387025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 23931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 23978a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 239834c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, 23991674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt fsf_cfdc->sg, 24001674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt ZFCP_FSF_MAX_SBALS_PER_REQ); 2401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 24051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2409564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 24108a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2412058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 2413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 24141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 24161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2417bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2418bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 2419bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO 2420bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 2421bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @sbal_idx: response queue index of SBAL to be processed 2422bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2423564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligvoid zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) 2424bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 2425564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 2426564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct qdio_buffer *sbal = qdio->resp_q.sbal[sbal_idx]; 2427bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct qdio_buffer_element *sbale; 2428bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *fsf_req; 2429b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt unsigned long req_id; 2430bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig int idx; 2431bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2432bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { 2433bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2434bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig sbale = &sbal->element[idx]; 2435bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id = (unsigned long) sbale->addr; 2436b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id); 2437bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2438bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (!fsf_req) 2439bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig /* 2440bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Unknown request means that we have potentially memory 2441bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * corruption and must stop the machine immediately. 2442bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2443bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig panic("error: unknown req_id (%lx) on adapter %s.\n", 2444bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id, dev_name(&adapter->ccw_device->dev)); 2445bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 244634c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt fsf_req->qdio_req.sbal_response = sbal_idx; 244734c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt fsf_req->qdio_req.qdio_inb_usage = 2448564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_read(&qdio->resp_q.count); 2449bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(fsf_req); 2450bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2451bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) 2452bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig break; 2453bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 2454bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 2455