zfcp_fsf.c revision 2d1e547f7523514d1da449bcf08645fe13579378
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); 2772d1e547f7523514d1da449bcf08645fe13579378Sven Schuetz zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKDOWN, 0); 278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_UP: 280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 281ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The local link has been restored\n"); 282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 2835ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, 284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 2895ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fssrh_2", req); 2902d1e547f7523514d1da449bcf08645fe13579378Sven Schuetz zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKUP, 0); 2912d1e547f7523514d1da449bcf08645fe13579378Sven Schuetz 292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_NOTIFICATION_LOST: 294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) 2955ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_3", 2965ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) 2989eae07ef6bb5988163d8bb82cd952905db47b721Swen Schillig queue_work(adapter->work_queue, &adapter->scan_work); 299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_CFDC_UPDATED: 3015ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); 302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: 304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = sr_buf->payload.word[0]; 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 308a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_inc(&adapter->stat_miss); 3124544683a4b1d4e65ccca8c736bac56a195a5206bSwen Schillig queue_work(adapter->work_queue, &adapter->stat_work); 313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) 316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_FCP_RSP_AVAILABLE: 319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RETRY_POSSIBLE: 321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_COMMAND_ABORTED: 324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RECOM: 326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 327ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter reported a problem " 328ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "that cannot be recovered\n"); 3295ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); 330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* all non-return stats set FSFREQ_ERROR*/ 333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_UNKNOWN_COMMAND: 343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 344ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter does not recognize the command 0x%x\n", 345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command); 3465ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); 347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_qual_eval(req); 351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) 356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3615771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_response(req); 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 3644c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->prefix.prot_status) { 369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_GOOD: 370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_FSF_STATUS_PRESENTED: 371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_QTCB_VERSION_ERROR: 373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 374ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "QTCB version 0x%x not supported by FCP adapter " 375ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, 376ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt psq->word[0], psq->word[1]); 3775ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); 378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_ERROR_STATE: 380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_SEQ_NUMB_ERROR: 3815ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); 3824c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 383c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_UNSUPP_QTCB_TYPE: 385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 386ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The QTCB type is not supported by the FCP adapter\n"); 3875ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); 388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_HOST_CONNECTION_INITIALIZING: 390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, 391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_DUPLICATE_REQUEST_ID: 394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 395ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%Lx is an ambiguous request identifier\n", 396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (unsigned long long)qtcb->bottom.support.req_handle); 3975ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); 398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_LINK_DOWN: 4005ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fspse_5", 4015ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig &psq->link_down_info); 402452b505c5ada345103bdfdb39dc550df3ffe9eeaChristof Schmitt /* go through reopen to flush pending requests */ 4035ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); 404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_REEST_QUEUE: 406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 4075ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL, 408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 4125ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 4135ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fspse_8", req); 414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 417ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%x is not a valid transfer protocol status\n", 418c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->prefix.prot_status); 4195ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); 420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_complete - process completion of a FSF request 426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: The FSF request that has been completed. 427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * When a request has been completed either from the FCP adapter, 429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * or it has been dismissed due to a queue shutdown, this function 430c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * is called to process the completion status and trigger further 431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * events related to the FSF request. 432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 433bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligstatic void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 435c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { 436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_handler(req); 437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_protstatus_eval(req); 442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_eval(req); 443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler(req); 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->erp_action) 446287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_notify(req->erp_action, 0); 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) 449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 451058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig complete(&req->completion); 452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 454bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 455bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_req_dismiss_all - dismiss all fsf requests 456bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 457bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * 458bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Never ever call this without shutting down the adapter first. 459bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Otherwise the adapter would continue using and corrupting s390 storage. 460bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Included BUG_ON() call to ensure this is done. 461bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * ERP is supposed to be the only user of this function. 462bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 463bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligvoid zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) 464bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 465bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *req, *tmp; 466bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig LIST_HEAD(remove_queue); 467bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 468bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); 469b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_move(adapter->req_list, &remove_queue); 470bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 471bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_for_each_entry_safe(req, tmp, &remove_queue, list) { 472bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&req->list); 473bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; 474bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(req); 475bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 476bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 477bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) 479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 4809d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config; 481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 4839d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fc_els_flogi *nsp, *plogi; 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4859d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt /* adjust pointers for missing command code */ 4869d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param 4879d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt - sizeof(u32)); 4889d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload 4899d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt - sizeof(u32)); 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 4949d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt fc_host_port_name(shost) = nsp->fl_wwpn; 4959d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt fc_host_node_name(shost) = nsp->fl_wwnn; 496800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt fc_host_port_id(shost) = ntoh24(bottom->s_id); 497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = bottom->fc_link_speed; 498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; 499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = bottom->adapter_type; 501faf4cd854203b26527d81e7e13d66e78774dad44Christof Schmitt adapter->timer_ticks = bottom->timer_interval & ZFCP_FSF_TIMER_INT_MASK; 5028d88cf3f3b9af4713642caeb221b6d6a42019001Christof Schmitt adapter->stat_read_buf_num = max(bottom->status_read_buf_num, 5038d88cf3f3b9af4713642caeb221b6d6a42019001Christof Schmitt (u16)FSF_STATUS_READS_RECOM); 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 510800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt adapter->peer_d_id = ntoh24(bottom->peer_d_id); 5119d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwpn = plogi->fl_wwpn; 5129d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwnn = plogi->fl_wwnn; 513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 520dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 523ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 524ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 5255ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); 526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 533553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 534553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 538553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5488a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 555c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 556ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 557ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 558ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 5595ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); 560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 571c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 573c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 574c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5765ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsecdh2", 577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 579c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 5805ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); 581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 587c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 589c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 590c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 592c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 593c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 594ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 595ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5965ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); 597c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 598c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 599c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 600c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 601ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 602ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 6035ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); 604c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 605c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 607c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 608c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 609c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 610c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 611c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 613c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 614c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 6159eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 6160282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { 617c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 6180282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6190282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt } else 620c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 621c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 622c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 6232d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types, 6242d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt FC_FC4_LIST_SIZE); 6252d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types, 6262d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt FC_FC4_LIST_SIZE); 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 636c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 637c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 638c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 639c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 640c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 641c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 6425ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsepdh1", 643c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 644aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 646c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 647d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 648a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) 649c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 650c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 651a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 652a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 653a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 654a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 655a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = kmalloc(sizeof(*req), GFP_ATOMIC); 656a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 657a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req)) 658c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 659a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 660c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 66188f2a977870af655296a682fe2a58c822cd25bb2Christof Schmitt req->pool = pool; 662c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 663c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 664c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 665a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) 666c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 667a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct fsf_qtcb *qtcb; 668c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 669c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 671c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 672a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); 673a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 674c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 675c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 676c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 677c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 678a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return qtcb; 679c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 680c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 681564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, 6821674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt u32 fsf_cmd, u32 sbtype, 6831674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt mempool_t *pool) 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 685564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 686a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 6891e9b16430ff4fd09408a74342d6b8338228e2f70Christof Schmitt return ERR_PTR(-ENOMEM); 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 695c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 696058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig init_completion(&req->completion); 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 698c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 699c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 70052bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt req->req_id = adapter->req_no; 701c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 702a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { 703a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 704a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); 705a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 706a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(NULL); 707a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 708a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req->qtcb)) { 709a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig zfcp_fsf_req_free(req); 710a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return ERR_PTR(-ENOMEM); 711a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig } 712a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 7135bdecd2248d4af6f3b311b4d8ca7f3f5f83a7191Christof Schmitt req->seq_no = adapter->fsf_req_seq_no; 714564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 717c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 720c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 721c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 722c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 7231674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_req_init(adapter->qdio, &req->qdio_req, req->req_id, sbtype, 7241674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req->qtcb, sizeof(struct fsf_qtcb)); 7251674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 726c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 729c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 730c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 732564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 733b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt int with_qtcb = (req->qtcb != NULL); 734e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt int req_id = req->req_id; 735c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 736b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_add(adapter->req_list, req); 737c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 738706eca49a044a1ea89352dcc4b96ffc1631b2cb5Swen Schillig req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q_free); 739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 74034c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt if (zfcp_qdio_send(qdio, &req->qdio_req)) { 741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 7423765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt /* lookup request again, list might have changed */ 743b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_find_rm(adapter->req_list, req_id); 7445ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); 745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 748c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 749135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann if (with_qtcb) 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 75152bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt adapter->req_no++; 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 762564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_status_read(struct zfcp_qdio *qdio) 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 764564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 766c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 767c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 769564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 7706b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 771c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 772c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 7731674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 0, 774a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.status_read_req); 775025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 780a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); 781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 782c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 785c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 786c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 7871674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 7881674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, &req->qdio_req, sr_buf, sizeof(*sr_buf)); 7891674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 790059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 798a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 8015771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL); 802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 803564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 809c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 810c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 811c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 817c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8185ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 8195ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsafch1", req); 820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8255ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); 826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 8335ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsafch3", req); 8344c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 8375ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fsafch4", req); 8384c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 841c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 8436f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 844dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 86463caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_unit *unit) 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 866c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 867564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 8688a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 869564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 8706b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 871c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 872564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, 8731674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 874564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_abort); 875633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 876633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 877c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 878633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 8792abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 880c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 881c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 882c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8841674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 888c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 889c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 891c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 892c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 893c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 894c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 895c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 896c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 897c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 898c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 899c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 900564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 901c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 904c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 906c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 9077c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_fsf_ct_els *ct = req->data; 908c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9107c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->status = -EINVAL; 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 9175771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_ct_response(req); 9187c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->status = 0; 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 927c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 9344c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 9375ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); 938dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 944c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 9497c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt if (ct->handler) 9507c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->handler(ct->handler_data); 951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9531674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmittstatic void zfcp_fsf_setup_ct_els_unchained(struct zfcp_qdio *qdio, 9541674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt struct zfcp_qdio_req *q_req, 955426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_req, 956426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_resp) 957426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 9581674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_req), sg_req->length); 9591674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_resp), sg_resp->length); 9601674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, q_req); 961426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 962426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 96339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmittstatic int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, 96439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_req, 96501b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig struct scatterlist *sg_resp) 966c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 96742428f747a8a0db9c6de03e105932316defad65dSwen Schillig struct zfcp_adapter *adapter = req->adapter; 96842428f747a8a0db9c6de03e105932316defad65dSwen Schillig u32 feat = adapter->adapter_features; 969c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 970c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 97139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { 9721674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt if (!zfcp_qdio_sg_one_sbale(sg_req) || 9731674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt !zfcp_qdio_sg_one_sbale(sg_resp)) 97439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return -EOPNOTSUPP; 97539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 9761674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, 9771674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sg_req, sg_resp); 978426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return 0; 979426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt } 980426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 981426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt /* use single, unchained SBAL if it can hold the request */ 98230b6777b8931afc5f3aa42858fe917938b570f79Swen Schillig if (zfcp_qdio_sg_one_sbale(sg_req) && zfcp_qdio_sg_one_sbale(sg_resp)) { 9831674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, 9841674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sg_req, sg_resp); 98539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return 0; 98639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt } 98739eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 98801b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, sg_req); 989c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 9909072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 991c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 9921674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_skip_to_last_sbale(&req->qdio_req); 993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 99434c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, 99501b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig sg_resp); 996b1a58985853574346f1518531bdd82069501b317Christof Schmitt req->qtcb->bottom.support.resp_buf_length = bytes; 997c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 9989072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 99998fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt 1000b1a58985853574346f1518531bdd82069501b317Christof Schmitt return 0; 1001b1a58985853574346f1518531bdd82069501b317Christof Schmitt} 1002b1a58985853574346f1518531bdd82069501b317Christof Schmitt 1003b1a58985853574346f1518531bdd82069501b317Christof Schmittstatic int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, 1004b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_req, 1005b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_resp, 100601b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig unsigned int timeout) 1007b1a58985853574346f1518531bdd82069501b317Christof Schmitt{ 1008b1a58985853574346f1518531bdd82069501b317Christof Schmitt int ret; 1009b1a58985853574346f1518531bdd82069501b317Christof Schmitt 101001b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp); 1011b1a58985853574346f1518531bdd82069501b317Christof Schmitt if (ret) 1012b1a58985853574346f1518531bdd82069501b317Christof Schmitt return ret; 1013b1a58985853574346f1518531bdd82069501b317Christof Schmitt 101498fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt /* common settings for ct/gs and els requests */ 101551375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig if (timeout > 255) 101651375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig timeout = 255; /* max value accepted by hardware */ 101798fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.service_class = FSF_CLASS_3; 101851375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig req->qtcb->bottom.support.timeout = timeout; 101951375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig zfcp_fsf_start_timer(req, (timeout + 10) * HZ); 1020c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1025c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 1026c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 1027c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10297c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmittint zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, 103051375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig struct zfcp_fsf_ct_els *ct, mempool_t *pool, 103151375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig unsigned int timeout) 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1033564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 1034c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1035c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1037564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 10386b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1039c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10411674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, 10421674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE_READ, pool); 104309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1044025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1045c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1046c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10473f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 10483f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 104909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 105001b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, timeout); 1051553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1054c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 10555ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 1056c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 10587c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt zfcp_dbf_san_ct_request(req, wka_port->d_id); 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1060c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1062c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1066c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1067c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1068c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1069564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1070c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1073c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10757c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_fsf_ct_els *send_els = req->data; 1076c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1077c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1079c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1081c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 10865771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_response(req); 1087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1090c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1097c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1107dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt if (port) 1108dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt zfcp_fsf_access_denied_port(req, port); 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1118aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1122c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 11267c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmittint zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, 112751375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig struct zfcp_fsf_ct_els *els, unsigned int timeout) 1128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 11307c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_qdio *qdio = adapter->qdio; 1131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1133564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 11346b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 113609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 11371674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, 11381674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE_READ, NULL); 113909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1140025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1143c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 114509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 114601b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig 114701b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2); 114801b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig 114901b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, timeout); 115044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig 1151c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11547c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt hton24(req->qtcb->bottom.support.d_id, d_id); 1155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11585771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_request(req); 1159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1165c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1169564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1170c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1176564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1179564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 11806b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 118209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1183564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 11841674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1185564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 118609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1187025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 119209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 11931674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1196aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1197aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 11989eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1199aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1202e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1204287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1208e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1211564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 121252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 121352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1215564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, 1216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 121752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 1218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1221564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 12226b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1223ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12251674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 12261674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, NULL); 122709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1228025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1230ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 123152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 123252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 12331674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 1234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 123552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 123752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 123852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 123952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 124052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 124152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 124252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 124452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1247564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1248553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1249058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 125052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1252ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 125352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1254ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1255564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1261aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1266564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1270564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 127152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1273564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 12746b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 127609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1277564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 12781674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1279564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 128009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1281025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1284aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1285aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 128609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 12871674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1291e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 129252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1293287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1297e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 129852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1300564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 130152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 130252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 130352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 130452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 130552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1306564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig * @qdio: pointer to struct zfcp_qdio 1307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 130952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1310564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, 1311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 131252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 1313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 131552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1316564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 131752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 131852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1319564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 13206b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1321ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 13231674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 13241674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, NULL); 132509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1326025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1328ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 133152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 133352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 13341674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 133552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1339564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1340ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1341553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1342058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 1343058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig 1344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 1347ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1348ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1349564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1350ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 13579d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fc_els_flogi *plogi; 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1360a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann goto out; 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1370ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 13717ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig "remote port 0x%016Lx\n", 13727ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 13735ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_failed(port, "fsoph_1", req); 1374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1389d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1390d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1391d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14079d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; 140839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (req->qtcb->bottom.support.els1_length >= 14099d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt FSF_PLOGI_MIN_LEN) 1410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1416a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann 1417a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermannout: 1418615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&port->dev); 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1428564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1429a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann struct zfcp_port *port = erp_action->port; 1430564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_fsf_req *req; 1431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1433564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 14346b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1435c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1437564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 14381674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1439564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 144009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1441025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 144609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 14471674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1450800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt hton24(req->qtcb->bottom.support.d_id, port->d_id); 1451a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->data = port; 1452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1453e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1454615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt get_device(&port->dev); 1455c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1456287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1457c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1459c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1460e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 1461615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&port->dev); 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1464564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1470c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 147344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 14775ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); 1478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14835ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_port_status(port, "fscph_2", req, 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1497564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1501564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 15026b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1505564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 15061674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1507564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 150809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1509025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 151409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 15151674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1521e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1523287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1527e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1530564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) 15355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1536bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 15375ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 15385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15395ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { 1540bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 15415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15425ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig switch (header->fsf_status) { 15455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 15465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig dev_warn(&req->adapter->ccw_device->dev, 15475ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig "Opening WKA port 0x%x failed\n", wka_port->d_id); 1548dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 15495ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 15505ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1551dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 15525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ACCESS_DENIED: 1553bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 15545ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig break; 15555ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_GOOD: 15565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->handle = header->port_handle; 155727f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig /* fall through */ 155827f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig case FSF_PORT_ALREADY_OPEN: 1559bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; 15605ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15615ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 15625ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 15635ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 15645ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15655ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 15665ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_open_wka_port - create and send open wka-port request 1567bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: pointer to struct zfcp_fc_wka_port 15685ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 15695ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1570bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) 15715ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1572564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 15735ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 15745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 15755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1576564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 15776b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 15785ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15795ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1580564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 15811674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1582564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 158309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 15845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 15855ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 15865ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 158909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 15901674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 15915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15925ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_open_wka_port_handler; 1593800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); 15945ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 15955ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15965ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 15975ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 15985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 15995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1601564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 16025ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16055ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) 16065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1607bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 16085ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { 16105ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16115ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); 16125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1614bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 16155ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_close_wka_port - create and send close wka port request 1620bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: WKA port to open 16215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1623bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) 16245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1625564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 16265ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16275ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1629564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 16306b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 16315ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1633564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 16341674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1635564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 163609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 16375ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16395ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16405ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 164209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 16431674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 16445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_close_wka_port_handler; 16465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16475ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 16485ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16495ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16505ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16535ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1654564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 16555ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1658c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1660c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1661c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1664c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1665a5b11dda12ed7e3a79180b10ad6209a40a02989fChristof Schmitt return; 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 16695ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); 1670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1673c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 16765c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 16775c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 16785c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1679ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock(&port->unit_list_lock); 1680ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(unit, &port->unit_list, list) 16815c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 16825c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 1683ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 1684dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig zfcp_erp_port_boxed(port, "fscpph2", req); 16854c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1701ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock(&port->unit_list_lock); 1702ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(unit, &port->unit_list, list) 1703c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1704c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 1705ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock(&port->unit_list_lock); 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1710c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1711c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1717564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1720c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1721564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 17226b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1725564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, 17261674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1727564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 172809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1729025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1730c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 173409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 17351674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1737c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1740c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1741e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1742c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1743287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1744c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1747e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1750564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1762aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1764c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 176544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1768b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 17765ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); 1777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1783553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 17865ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsouh_2", req); 17874c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1790c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1791553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1792ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1793ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 17947ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 17957ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn, 1796ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1797ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1799553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1800553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 18015ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsouh_3", req); 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1808ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1809ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 18107ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18117ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18125ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_4", req); 1813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 18206f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 1821c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1831aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1832aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1833aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 18346fcf41d1d8796f41b893754324704e23971c2ea1Christof Schmitt !zfcp_ccw_priv_sch(adapter)) { 1835aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1836aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1837aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1838aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1839aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1848ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1849ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 18507ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18517ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1856ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1857ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1858ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 18597ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18607ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18615ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_5", req); 1862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18635ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1865c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1866ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1867ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 186827c3f0a6e4521ba0ff6e76da54969f0bf430f53aChristof Schmitt "0x%016Lx)\n", 18697ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18707ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18715ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_7", req); 1872c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18735ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1880c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1881c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1882c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1883c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1885c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1888564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 1889c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1891c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1892564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 18936b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1896564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, 18971674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1898a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.erp_req); 189909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1900025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1901c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1902c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1903c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1904c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 190509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 19061674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1908c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 1910c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 1911c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1913e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1914c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 1916c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 1917c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1918287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1919c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1922e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1924c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1925564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1929c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1931c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1933c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 193444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 19351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 19385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); 1939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 19425ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); 1943c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 19465ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fscuh_3", req); 19474c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 1950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 19526f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 1953c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 19541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1955c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1966c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 1967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 1968c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 19691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1970c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1972564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1973c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1974c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1976564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 19776b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 197909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1980564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, 19811674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1982564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 198309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1984025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1985c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1986c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1987c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 198909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 19901674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1992c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 1994c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 1995c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1996c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1997e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1998fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 1999287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 2000c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2001c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 2002c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2003e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 2004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2005c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2006564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2007c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2010c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 2011c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2012c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 2013c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 2014c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 2015c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 2016c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2017d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmittstatic void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) 2018c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2019d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct fsf_qual_latency_info *lat_in; 2020d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct latency_cont *lat = NULL; 2021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 2022d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct zfcp_blk_drv_data blktrc; 2023d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt int ticks = req->adapter->timer_ticks; 2024c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2025d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; 2026c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2027d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags = 0; 2028d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; 2029d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 2030d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_REQ_ERROR; 2031706eca49a044a1ea89352dcc4b96ffc1631b2cb5Swen Schillig blktrc.inb_usage = 0; 203234c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt blktrc.outb_usage = req->qdio_req.qdio_outb_usage; 2033d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 20345bbf297cc652713a0a6511004b8d4c1cc21a3b02Christof Schmitt if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA && 20355bbf297cc652713a0a6511004b8d4c1cc21a3b02Christof Schmitt !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 2036d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_LAT_VALID; 2037d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.channel_lat = lat_in->channel_lat * ticks; 2038d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.fabric_lat = lat_in->fabric_lat * ticks; 2039d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 2040d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt switch (req->qtcb->bottom.io.data_direction) { 2041d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_READ: 2042d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.read; 2043d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2044d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_WRITE: 2045d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.write; 2046d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2047d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_CMND: 2048d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat = &unit->latencies.cmd; 2049d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 2050d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2052d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (lat) { 2053d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_lock(&unit->latencies.lock); 2054d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); 2055d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); 2056d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat->counter++; 2057d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt spin_unlock(&unit->latencies.lock); 2058d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 20590997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl } 20600997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2061d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, 2062d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt sizeof(blktrc)); 20630997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 20640997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2065c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 20661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20670ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig struct scsi_cmnd *scpnt; 20684318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 20691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2071c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 2072c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 20730ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig scpnt = req->data; 20740ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig if (unlikely(!scpnt)) { 20750ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 20760ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig return; 20770ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig } 20780ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig 2079c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 20804c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20844318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 20854318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 20885bbf297cc652713a0a6511004b8d4c1cc21a3b02Christof Schmitt zfcp_fsf_req_trace(req, scpnt); 2089ab72528a4498251a702fa7693b51b9311b2432f8Christof Schmitt zfcp_dbf_scsi_result(req->adapter->dbf, scpnt, req); 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2099c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2102c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 21031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21044318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 21054318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_resp_rsp_info *rsp_info; 21061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21074318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 21084318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; 21094318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt 21104318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt if ((rsp_info->rsp_code != FCP_TMF_CMPL) || 2111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2118c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2120c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2121c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2122c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 21271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2130c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 21325ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); 2133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2136c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 21375ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); 2138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2140c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 21421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2143c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2145c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2148ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2149ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2150c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 21517ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 21527ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 21535ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", 21545ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2159ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2160ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 21627ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 21637ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 21645ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", 21655ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 21695ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fssfch5", req); 21704c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2171c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 21735ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fssfch6", req); 21744c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 21796f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 2180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2183c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2189615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&unit->dev); 2190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 219863caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittint zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, 219963caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct scsi_cmnd *scsi_cmnd) 22001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 22024318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2203bc90c8632f63cd94246e3fb6f1b6d7ecba48f1a0Christof Schmitt unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; 2204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 220563caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 2206564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 22071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 22111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2212564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock(&qdio->req_q_lock); 2213706eca49a044a1ea89352dcc4b96ffc1631b2cb5Swen Schillig if (atomic_read(&qdio->req_q_free) <= 0) { 2214564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 2215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22168fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt } 221709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 22181674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) 22191674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sbtype = SBAL_FLAGS0_TYPE_WRITE; 22201674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 2221564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 22221674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sbtype, adapter->pool.scsi_req); 222309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2224025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 222909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 22364318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 22481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 2256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22591674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt get_device(&unit->dev); 22601674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 22614318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 22624318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); 22631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22641674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, 226501b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig scsi_sglist(scsi_cmnd)); 226601b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig if (unlikely(real_bytes < 0)) 2267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2276615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&unit->dev); 2277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2280564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock(&qdio->req_q_lock); 2281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 22891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 229063caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) 22911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 22934318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2294564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 22951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 22991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2300564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 23016b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 2302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 230309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2304564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 23051674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE, 2306564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_req); 230709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2308633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 2309633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 2310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2311633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 23121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 23204318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 23221674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 23231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23244318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 23254318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags); 23261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2334564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 23371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 23401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 23471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 23501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2351564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 2352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2370564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 23716b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 2372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23741674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL); 2375025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 23811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2383c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 23858a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 238601b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg); 238701b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig 2388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2396564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 23978a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2399058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 2400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 24011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 24031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2404bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2405bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 2406bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO 2407bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 2408bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @sbal_idx: response queue index of SBAL to be processed 2409bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2410564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligvoid zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) 2411bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 2412564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 2413706eca49a044a1ea89352dcc4b96ffc1631b2cb5Swen Schillig struct qdio_buffer *sbal = qdio->res_q[sbal_idx]; 2414bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct qdio_buffer_element *sbale; 2415bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *fsf_req; 2416b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt unsigned long req_id; 2417bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig int idx; 2418bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2419bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { 2420bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2421bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig sbale = &sbal->element[idx]; 2422bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id = (unsigned long) sbale->addr; 2423b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id); 2424bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2425bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (!fsf_req) 2426bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig /* 2427bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Unknown request means that we have potentially memory 2428bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * corruption and must stop the machine immediately. 2429bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2430bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig panic("error: unknown req_id (%lx) on adapter %s.\n", 2431bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id, dev_name(&adapter->ccw_device->dev)); 2432bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 243334c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt fsf_req->qdio_req.sbal_response = sbal_idx; 2434bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(fsf_req); 2435bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2436bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) 2437bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig break; 2438bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 2439bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 2440