zfcp_fsf.c revision 98fc4d5c8cd9bd1a412cca922feecb54c1c22d8e
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * zfcp device driver 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * Implementation of FSF commands. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6a2fa0aede07c9488239dcac1eae58233181c355aChristof Schmitt * Copyright IBM Corporation 2002, 2009 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt#define KMSG_COMPONENT "zfcp" 10ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 11ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt 120997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#include <linux/blktrace_api.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "zfcp_ext.h" 14dcd20e2316cdc333dfdee09649dbe3642eb30e75Christof Schmitt#include "zfcp_dbf.h" 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_request_timeout_handler(unsigned long data) 17287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 18287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; 195ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 205ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsrth_1", NULL); 21287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 22287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 23287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, 24287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt unsigned long timeout) 25287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 26287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_fsf_request_timeout_handler; 27287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->adapter; 28287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + timeout; 29287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 30287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 31287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 32287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) 33287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 34287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt BUG_ON(!fsf_req->erp_action); 35287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_erp_timeout_handler; 36287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->erp_action; 37287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + 30 * HZ; 38287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 39287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 40287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* association between FSF command and FSF QTCB type */ 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 fsf_qtcb_type[] = { 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 58553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) 59553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 60c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u16 subtable = table >> 16; 61553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt u16 rule = table & 0xffff; 62ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; 63553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 64ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt if (subtable && subtable < ARRAY_SIZE(act_type)) 65553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 66ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied according to ACT rule type %s, " 67ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "rule %d\n", act_type[subtable], rule); 68553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 69553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 70553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, 71553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_port *port) 72553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 73553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 74553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 75ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to port 0x%016Lx\n", 767ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 77553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 78553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_access_denied(port, "fspad_1", req); 80553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 81553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 82553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 83553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, 84553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_unit *unit) 85553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 86553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 87553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 88ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to unit 0x%016Lx on port 0x%016Lx\n", 897ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 907ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 91553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 92553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 935ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsuad_1", req); 94553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 95553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 96553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 97553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) 98553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 99ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_err(&req->adapter->ccw_device->dev, "FCP device not " 100ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "operational because of an unsupported FC class\n"); 1015ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); 102553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 103553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 104553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 105c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 106c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_free - free memory used by fsf request 107c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: pointer to struct zfcp_fsf_req 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_free(struct zfcp_fsf_req *req) 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->pool)) { 112a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 113a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); 114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(req, req->pool); 115dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 116dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 117dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens 118a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 119a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb); 120a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kfree(req); 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port; 128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int d_id = sr_buf->d_id & ZFCP_DID_MASK; 129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unsigned long flags; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&zfcp_data.config_lock, flags); 132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_for_each_entry(port, &adapter->port_list_head, list) 133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (port->d_id == d_id) { 134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&zfcp_data.config_lock, flags); 1355ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(port, 0, "fssrpc1", req); 136c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 137c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&zfcp_data.config_lock, flags); 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1415ffd51a5e495a2a002efd523aef0001912b080bdSwen Schilligstatic void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id, 142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *link_down) 143aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin{ 144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 14570932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt unsigned long flags; 146698ec01635819c5ae60090bb4efcbeffc41642fbMartin Peschke 147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) 148ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin return; 149ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 150ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); 15170932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt 15270932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt read_lock_irqsave(&zfcp_data.config_lock, flags); 153a2fa0aede07c9488239dcac1eae58233181c355aChristof Schmitt zfcp_scsi_schedule_rports_block(adapter); 15470932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt read_unlock_irqrestore(&zfcp_data.config_lock, flags); 155ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!link_down) 1572f8f3ed5fc566700cf45d422f4cf1624bd123d93Andreas Herrmann goto out; 158ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 159aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin switch (link_down->error_code) { 160aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_LIGHT: 161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 162ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is no light signal from the local " 163ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel cable\n"); 164aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 165aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WRAP_PLUG: 166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 167ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is a wrap plug instead of a fibre " 168ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "channel cable\n"); 169aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 170aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP: 171c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 172ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent fibre channel node does not " 173ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "support FCP\n"); 174aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 175aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FIRMWARE_UPDATE: 176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 177ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device is suspended because of a " 178ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "firmware update\n"); 179553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt break; 180aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_INVALID_WWPN: 181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 182ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device detected a WWPN that is " 183ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "duplicate or not valid\n"); 184aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 185aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_NPIV_SUPPORT: 186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 187ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The fibre channel fabric does not support NPIV\n"); 188aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 189aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP_RESOURCES: 190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 191ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter cannot support more NPIV ports\n"); 192aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 193aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: 194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 195ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent switch cannot support " 196ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "more NPIV ports\n"); 197aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 198aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: 199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 200ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter could not log in to the " 201ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel fabric\n"); 202aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 203aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: 204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 205ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The WWPN assignment file on the FCP adapter " 206ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 207aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 208aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: 209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 210ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The mode table on the FCP adapter " 211ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 212aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 213aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: 214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 215ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "All NPIV ports on the FCP adapter have " 216ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "been assigned\n"); 217aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 218aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin default: 219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 220ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The link between the FCP adapter and " 221ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "the FC fabric is down\n"); 222aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_failed(adapter, id, req); 225aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin} 226aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *ldi = 231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (struct fsf_link_down_info *) &sr_buf->payload; 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: 2355ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi); 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FDISC_FAILED: 2385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi); 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: 2415ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL); 242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig }; 243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) 246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 2515771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("dism", adapter->dbf, sr_buf); 252a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2575771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("read", adapter->dbf, sr_buf); 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_type) { 260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_PORT_CLOSED: 261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_port_closed(req); 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_INCOMING_ELS: 264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_incoming_els(req); 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SENSE_DATA_AVAIL: 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: 269ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_warn(&adapter->ccw_device->dev, 270ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The error threshold for checksum statistics " 271ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been exceeded\n"); 2725771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_berr(adapter->dbf, req); 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_DOWN: 275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_link_down(req); 276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_UP: 278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 279ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The local link has been restored\n"); 280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 2815ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, 282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 2875ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fssrh_2", req); 288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_NOTIFICATION_LOST: 290c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) 2915ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_3", 2925ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) 294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig schedule_work(&adapter->scan_work); 295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_CFDC_UPDATED: 2975ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); 298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: 300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = sr_buf->payload.word[0]; 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 304a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_inc(&adapter->stat_miss); 3084544683a4b1d4e65ccca8c736bac56a195a5206bSwen Schillig queue_work(adapter->work_queue, &adapter->stat_work); 309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) 312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_FCP_RSP_AVAILABLE: 315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RETRY_POSSIBLE: 317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_COMMAND_ABORTED: 320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTED; 321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RECOM: 323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 324ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter reported a problem " 325ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "that cannot be recovered\n"); 3265ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); 327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* all non-return stats set FSFREQ_ERROR*/ 330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_UNKNOWN_COMMAND: 340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 341ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter does not recognize the command 0x%x\n", 342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command); 3435ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); 344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_qual_eval(req); 348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) 353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3585771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_response(req); 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */ 363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->prefix.prot_status) { 367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_GOOD: 368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_FSF_STATUS_PRESENTED: 369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_QTCB_VERSION_ERROR: 371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 372ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "QTCB version 0x%x not supported by FCP adapter " 373ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, 374ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt psq->word[0], psq->word[1]); 3755ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); 376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_ERROR_STATE: 378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_SEQ_NUMB_ERROR: 3795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); 380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_RETRY; 381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_UNSUPP_QTCB_TYPE: 383c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 384ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The QTCB type is not supported by the FCP adapter\n"); 3855ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); 386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_HOST_CONNECTION_INITIALIZING: 388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, 389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_DUPLICATE_REQUEST_ID: 392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 393ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%Lx is an ambiguous request identifier\n", 394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (unsigned long long)qtcb->bottom.support.req_handle); 3955ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); 396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_LINK_DOWN: 3985ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fspse_5", 3995ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig &psq->link_down_info); 400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* FIXME: reopening adapter now? better wait for link up */ 4015ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); 402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_REEST_QUEUE: 404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 4055ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL, 406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 4105ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 4115ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fspse_8", req); 412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 415ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%x is not a valid transfer protocol status\n", 416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->prefix.prot_status); 4175ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); 418c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 419c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_complete - process completion of a FSF request 424c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: The FSF request that has been completed. 425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * When a request has been completed either from the FCP adapter, 427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * or it has been dismissed due to a queue shutdown, this function 428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * is called to process the completion status and trigger further 429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * events related to the FSF request. 430c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 431bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligstatic void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { 434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_handler(req); 435c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_protstatus_eval(req); 440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_eval(req); 441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler(req); 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->erp_action) 444287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_notify(req->erp_action, 0); 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) 447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 449058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig complete(&req->completion); 450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 452bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 453bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_req_dismiss_all - dismiss all fsf requests 454bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 455bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * 456bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Never ever call this without shutting down the adapter first. 457bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Otherwise the adapter would continue using and corrupting s390 storage. 458bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Included BUG_ON() call to ensure this is done. 459bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * ERP is supposed to be the only user of this function. 460bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 461bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligvoid zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) 462bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 463bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *req, *tmp; 464bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned long flags; 465bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig LIST_HEAD(remove_queue); 466bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned int i; 467bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 468bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); 469bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_lock_irqsave(&adapter->req_list_lock, flags); 470bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (i = 0; i < REQUEST_LIST_SIZE; i++) 471bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_splice_init(&adapter->req_list[i], &remove_queue); 472bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_unlock_irqrestore(&adapter->req_list_lock, flags); 473bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 474bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_for_each_entry_safe(req, tmp, &remove_queue, list) { 475bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&req->list); 476bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; 477bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(req); 478bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 479bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 480bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) 482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom; 484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.config; 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = bottom->nport_serv_param.wwnn; 493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = bottom->nport_serv_param.wwpn; 494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = bottom->s_id & ZFCP_DID_MASK; 495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = bottom->fc_link_speed; 496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; 497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = bottom->adapter_type; 499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->timer_ticks = bottom->timer_interval; 500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = bottom->peer_d_id & ZFCP_DID_MASK; 507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = bottom->plogi_payload.wwpn; 508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = bottom->plogi_payload.wwnn; 509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 516dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 519ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 520ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 5215ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); 522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 529553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 530553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 534553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5448a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 552ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 553ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 554ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 5555ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); 556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5725ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsecdh2", 573c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 575c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 5765ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); 577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 578c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 589c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 590ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 591ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5925ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); 593c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 594c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 595c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 596c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 597ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 598ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5995ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); 600c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 601c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 603c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 604c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 605c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 606c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 607c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 609c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 610c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 6119eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 6120282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { 613c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 6140282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6150282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt } else 616c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 617c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 618c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 619c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 621c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 622c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 623c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 624c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 626c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 6345ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsepdh1", 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 636aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 638c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 639d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 640564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic int zfcp_fsf_sbal_check(struct zfcp_qdio *qdio) 641c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 642564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio_queue *req_q = &qdio->req_q; 643c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 644564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 6457001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann if (atomic_read(&req_q->count)) 6467001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann return 1; 647564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 6487001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann return 0; 6497001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann} 6507001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann 651564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic int zfcp_fsf_req_sbal_get(struct zfcp_qdio *qdio) 6527001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann{ 653564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 6547001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann long ret; 655dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt 656564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 657564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig ret = wait_event_interruptible_timeout(qdio->req_q_wq, 658564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig zfcp_fsf_sbal_check(qdio), 5 * HZ); 659c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret > 0) 660c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 661cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt if (!ret) { 662564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 663cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt /* assume hanging outbound queue, try queue recovery */ 664cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL); 665cbf1ed0264da104573458aedc220ebfcd02567f6Christof Schmitt } 6667001f0c4863230dd1560425fa0f5aad9e21716b8Martin Petermann 667564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 668c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 669c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 671a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) 672c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 673c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 674a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 675a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 676a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 677a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 678a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = kmalloc(sizeof(*req), GFP_ATOMIC); 679a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 680a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req)) 681c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 682a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 683c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 68488f2a977870af655296a682fe2a58c822cd25bb2Christof Schmitt req->pool = pool; 685c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 686c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 687c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 688a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) 689c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 690a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct fsf_qtcb *qtcb; 691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 693c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 695a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); 696a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 698c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 699c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 700c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 701a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return qtcb; 702c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 703c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 704564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, 70509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig u32 fsf_cmd, mempool_t *pool) 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 70744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 708564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio_queue *req_q = &qdio->req_q; 709564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 710a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 7131e9b16430ff4fd09408a74342d6b8338228e2f70Christof Schmitt return ERR_PTR(-ENOMEM); 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 720058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig init_completion(&req->completion); 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 722c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 723c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 72452bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt req->req_id = adapter->req_no; 72542428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_number = 1; 72642428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_first = req_q->first; 72742428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbal_last = req_q->first; 72842428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = 1; 729c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 730564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].addr = (void *) req->req_id; 732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_COMMAND; 733c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 734a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { 735a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 736a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); 737a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 738a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(NULL); 739a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 740a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req->qtcb)) { 741a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig zfcp_fsf_req_free(req); 742a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return ERR_PTR(-ENOMEM); 743a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig } 744a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 745564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 748c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->seq_no = adapter->fsf_req_seq_no; 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].addr = (void *) req->qtcb; 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].length = sizeof(struct fsf_qtcb); 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { 759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 762951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 763c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 766c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 767c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 768c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 769564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 770135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann unsigned long flags; 771135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann int idx; 772135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann int with_qtcb = (req->qtcb != NULL); 773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* put allocated FSF request into hash table */ 77545316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_lock_irqsave(&adapter->req_list_lock, flags); 776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig idx = zfcp_reqlist_hash(req->req_id); 777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_add_tail(&req->list, &adapter->req_list[idx]); 77845316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_unlock_irqrestore(&adapter->req_list_lock, flags); 779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 780564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->queue_req.qdio_outb_usage = atomic_read(&qdio->req_q.count); 781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 782564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_qdio_send(qdio, &req->queue_req)) { 783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 7843765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_lock_irqsave(&adapter->req_list_lock, flags); 7853765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt /* lookup request again, list might have changed */ 7863765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt if (zfcp_reqlist_find_safe(adapter, req)) 7873765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt zfcp_reqlist_remove(adapter, req); 7883765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_unlock_irqrestore(&adapter->req_list_lock, flags); 7895ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); 790c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 794135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann if (with_qtcb) 795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 79652bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt adapter->req_no++; 797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 804c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 807564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_status_read(struct zfcp_qdio *qdio) 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 809564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 810c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 811c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 81244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 815564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 816564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 817c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 819564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 820a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.status_read_req); 821025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 826564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; 82842428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = 2; 829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 830a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); 831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 833c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 834c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 835c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 836c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 837564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_curr(qdio, &req->queue_req); 838c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->addr = (void *) sr_buf; 839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->length = sizeof(*sr_buf); 840059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 841c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 842c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 848a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 8515771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL); 852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 853564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 856c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 865c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8685ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 8695ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsafch1", req); 870c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 874c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8755ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); 876c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 880c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 8835ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsafch3", req); 884c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 885c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 8885ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fsafch4", req); 889c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 893c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 8956f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 896dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 898c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 903c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 910c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 911c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 91663caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_unit *unit) 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 91844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 919c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 920564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 9218a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 922564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 923564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 924c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 925564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, 926564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_abort); 927633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 928633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 929c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 930633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 9312abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 933c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 936564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 941c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 942c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 943c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 944c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 945c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 952c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 953c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 954564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 955c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 960c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 961c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_ct *send_ct = req->data; 962c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 964c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = -EINVAL; 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 966c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 9715771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_ct_response(req); 972c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = 0; 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 975c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 981c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 988c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 989c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 991c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 9925ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); 993dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 994c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 999c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (send_ct->handler) 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_ct->handler(send_ct->handler_data); 1006c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1008426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmittstatic void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale, 1009426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_req, 1010426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_resp) 1011426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 1012426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ; 1013426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[2].addr = sg_virt(sg_req); 1014426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[2].length = sg_req->length; 1015426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].addr = sg_virt(sg_resp); 1016426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].length = sg_resp->length; 1017426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY; 1018426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 1019426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 1020426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmittstatic int zfcp_fsf_one_sbal(struct scatterlist *sg) 1021426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 1022426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return sg_is_last(sg) && sg->length <= PAGE_SIZE; 1023426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 1024426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 102539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmittstatic int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, 102639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_req, 102739eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_resp, 102839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt int max_sbals) 1029c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 103042428f747a8a0db9c6de03e105932316defad65dSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1031564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(adapter->qdio, 103242428f747a8a0db9c6de03e105932316defad65dSwen Schillig &req->queue_req); 103342428f747a8a0db9c6de03e105932316defad65dSwen Schillig u32 feat = adapter->adapter_features; 1034c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 1035c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 103639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { 1037426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt if (!zfcp_fsf_one_sbal(sg_req) || !zfcp_fsf_one_sbal(sg_resp)) 103839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return -EOPNOTSUPP; 103939eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 1040426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); 1041426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return 0; 1042426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt } 1043426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 1044426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt /* use single, unchained SBAL if it can hold the request */ 1045426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt if (zfcp_fsf_one_sbal(sg_req) && zfcp_fsf_one_sbal(sg_resp)) { 1046426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); 104739eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return 0; 104839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt } 104939eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 1050564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req, 105142428f747a8a0db9c6de03e105932316defad65dSwen Schillig SBAL_FLAGS0_TYPE_WRITE_READ, 1052c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_req, max_sbals); 1053c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 10549072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 1055c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 105642428f747a8a0db9c6de03e105932316defad65dSwen Schillig req->queue_req.sbale_curr = ZFCP_LAST_SBALE_PER_SBAL; 1057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1058564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req, 105942428f747a8a0db9c6de03e105932316defad65dSwen Schillig SBAL_FLAGS0_TYPE_WRITE_READ, 1060c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_resp, max_sbals); 1061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 10629072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 106398fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt 106498fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt /* common settings for ct/gs and els requests */ 1065c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.resp_buf_length = bytes; 106698fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.service_class = FSF_CLASS_3; 106798fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.timeout = 2 * R_A_TOV; 106898fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt zfcp_fsf_start_timer(req, 2 * R_A_TOV + 10); 1069c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1070c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1074c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 1075c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 1076c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1078799b76d09aeee558d18c1f5b93e63f58f1d1fc11Christof Schmittint zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool) 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10805ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = ct->wka_port; 1081564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 1082c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1083c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1085564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1086564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1089564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, pool); 109009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1091025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1092c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1093c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10943f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 10953f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 109609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 109739eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt ret = zfcp_fsf_setup_ct_els_sbals(req, ct->req, ct->resp, 109839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt FSF_MAX_SBALS_PER_REQ); 1099553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1102c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 11035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 1104c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1105c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11065771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_ct_request(req); 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1117564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1118c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1121c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_els *send_els = req->data; 1124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 11345771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_response(req); 1135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 114364b29a130901d5b8578e9f602cf2dae56aaff224Andreas Herrmann if (port && (send_els->ls_code != ZFCP_LS_ADISC)) 11446f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(port); 1145c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /*fall through */ 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1158dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt if (port) 1159dc577d554a274b79a6ad05e9e1ac20c320200599Christof Schmitt zfcp_fsf_access_denied_port(req, port); 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1165c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1169aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1171c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 1177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_els(struct zfcp_send_els *els) 1178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1180564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = els->adapter->qdio; 1181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1183564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1184564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 118609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1187564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, NULL); 118809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1189025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 119409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 119539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt ret = zfcp_fsf_setup_ct_els_sbals(req, els->req, els->resp, 2); 119644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig 1197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 120098fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.d_id = els->d_id; 1201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12045771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_request(req); 1205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1215564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 122144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1223564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1226564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1227564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 122909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1230564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 1231564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 123209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1233025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 123809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1239564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 124052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 124152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1244aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1245aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 12469eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1247aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1252287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1259564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 126052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 126152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1263564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, 1264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 126552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 126644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1270564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1271564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1272ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1274564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, NULL); 127509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1276025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1278ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 127952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 128052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1281564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 128252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 128352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 1284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 128552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 128752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 128852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 128952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 129052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 129152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 129252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 129452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1295c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1297564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1298553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1299058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 130052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1302ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 130352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1304ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1305564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1311aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1316564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 131744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1321564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 132252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1324564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1325564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 132709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1328564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 1329564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 133009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1331025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1334aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1335aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 133609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1337564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 133852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 133952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 134452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1345287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 134952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig erp_action->fsf_req = NULL; 135052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1352564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 135352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 135452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 135552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 135652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 135752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1358564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig * @qdio: pointer to struct zfcp_qdio 1359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 136152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1362564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, 1363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 136452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 136544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 136852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1369564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 137052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 137152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1372564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1373564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1374ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1376564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, NULL); 137709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1378025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1380ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 138352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 138552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1386564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 138752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 138852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 138952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1393564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1394ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1395553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1396058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 1397058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig 1398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 1401ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1402ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 1403564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 1404ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fsf_plogi *plogi; 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1414a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann goto out; 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1424ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 14257ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig "remote port 0x%016Lx\n", 14267ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 14275ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_failed(port, "fsoph_1", req); 1428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1435c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1443d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1444d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1445d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1461c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els; 146239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (req->qtcb->bottom.support.els1_length >= 146339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt FSF_PLOGI_MIN_LEN) { 1464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (plogi->serv_param.wwpn != port->wwpn) 1465b98478d71b0fea6d35f96069612d92b76013589fChristof Schmitt port->d_id = 0; 1466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 1467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig port->wwnn = plogi->serv_param.wwnn; 1468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1476a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann 1477a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermannout: 1478a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann zfcp_port_put(port); 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 148844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1489564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1490a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann struct zfcp_port *port = erp_action->port; 1491564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_fsf_req *req; 1492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1494564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1495564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1498564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 1499564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 150009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1501025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 150609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1507564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1512a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->qtcb->bottom.support.d_id = port->d_id; 1513a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->data = port; 1514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1516a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann zfcp_port_get(port); 1517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1518287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 1523a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann zfcp_port_put(port); 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1526564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 153544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 15395ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); 1540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 15455ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_port_status(port, "fscph_2", req, 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1555c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 155944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1560564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1564564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1565564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 1566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1568564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 1569564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 157009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1571025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1574c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 157609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1577564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1583c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1587287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1590c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1593c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1594564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) 15995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = req->data; 16015ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 16025ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { 16045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 16055ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16085ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig switch (header->fsf_status) { 16095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 16105ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig dev_warn(&req->adapter->ccw_device->dev, 16115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig "Opening WKA port 0x%x failed\n", wka_port->d_id); 1612dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 16135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 16145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1615dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 16165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ACCESS_DENIED: 16175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 16185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig break; 16195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_GOOD: 16205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->handle = header->port_handle; 162127f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig /* fall through */ 162227f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig case FSF_PORT_ALREADY_OPEN: 16235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_ONLINE; 16245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 16265ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16275ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16305ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_open_wka_port - create and send open wka-port request 16315ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * @wka_port: pointer to struct zfcp_wka_port 16325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16335ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 16345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligint zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port) 16355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16365ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 1637564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 16385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16395ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16405ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1641564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1642564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 16435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1645564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 1646564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 164709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 16485ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16495ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16505ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 165309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1654564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 16555ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 16565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 16575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16585ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_open_wka_port_handler; 16595ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->bottom.support.d_id = wka_port->d_id; 16605ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16615ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16625ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16635ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16645ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16655ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16665ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1667564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 16685ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16695ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16715ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) 16725ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16735ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = req->data; 16745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { 16765ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16775ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); 16785ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16795ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16805ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 16815ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16825ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16835ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16855ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_close_wka_port - create and send close wka port request 16865ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * @erp_action: pointer to struct zfcp_erp_action 16875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 16895ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligint zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port) 16905ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 1692564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 16935ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16945ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16955ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1696564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1697564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 16985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1700564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 1701564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 170209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 17035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 17045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 17055ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 17065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 17075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 170809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1709564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 17105ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 17115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 17125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_close_wka_port_handler; 17145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 17155ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 17165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 17175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 17185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 17195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 17205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 17215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 1722564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 17235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 17245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 17255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1726c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1729c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1733a5b11dda12ed7e3a79180b10ad6209a40a02989fChristof Schmitt return; 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 17375ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); 1738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 17445c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 17455c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 17465c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 17475c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt list_for_each_entry(unit, &port->unit_list_head, list) 17485c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 17495c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 1750dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig zfcp_erp_port_boxed(port, "fscpph2", req); 1751dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1752dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig ZFCP_STATUS_FSFREQ_RETRY; 1753dfb3cf00e402686f671db697adbd8b9f4c219268Swen Schillig 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry(unit, &port->unit_list_head, list) 1770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1771c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 178344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1784564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1785c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1786c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1788564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1789564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1792564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, 1793564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 179409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1795025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 180009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1801564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 1802c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 1803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1809c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1810c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1811287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1817c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1818564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1830aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 183344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1836b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 18445ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); 1845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1851553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 18545ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsouh_2", req); 1855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1856c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1860553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1861ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1862ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 18637ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18647ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn, 1865ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1866ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1868553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1869553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 18705ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsouh_3", req); 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1873c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1876c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1877ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1878ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 18797ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18807ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18815ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_4", req); 1882c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1883c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1884c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 18896f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 1890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1892c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1900aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1901aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1902aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 19036fcf41d1d8796f41b893754324704e23971c2ea1Christof Schmitt !zfcp_ccw_priv_sch(adapter)) { 1904aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1905aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1906aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1907aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1908aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1916c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1917ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1918ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 19197ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19207ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1924c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1925ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1926ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1927ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 19287ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19297ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19305ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_5", req); 1931c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19325ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1935ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1936ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 193727c3f0a6e4521ba0ff6e76da54969f0bf430f53aChristof Schmitt "0x%016Lx)\n", 19387ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19397ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19405ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_7", req); 1941c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19425ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1952c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 19531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 195644cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1957c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1958564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 1959c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1960c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1961c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1962564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 1963564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1966564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, 1967a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.erp_req); 196809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1969025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1970c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1971c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1972c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1973c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 197409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 1975564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1979c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1980c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 1981c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 1982c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1983c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1984c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1985c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1986c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 1987c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 1988c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1989287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1990c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1992c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1995c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 1996564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2000c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2002c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 200544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2007c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 20095ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); 2010c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 20135ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); 2014c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 20175ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fscuh_3", req); 2018c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2019c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 20201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 2022c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 20231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 20246f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 2025c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 20261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 2027c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 20321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 20331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2038c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 2039c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 2040c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 20411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 204444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2045564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 2046c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2047c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2049564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2050564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 205209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2053564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, 2054564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 205509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2056025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2058c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2059c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 206109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2062564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2063c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 20641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 20651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2066c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 2067c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 2068c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 2069c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 2070c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 2071c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 2072fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 2073287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 2074c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2075c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 2076c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2077c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 2078c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2079c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2080564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2081c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2084c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 2085c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2086c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 2087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 2088c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 2089c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 2090c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2091c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_req_latency(struct zfcp_fsf_req *req) 2092c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2093c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct fsf_qual_latency_info *lat_inf; 2094c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct latency_cont *lat; 2095c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 2096c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2097c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_inf = &req->qtcb->prefix.prot_status_qual.latency_info; 2098c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2099c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->bottom.io.data_direction) { 2100c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_READ: 2101c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.read; 2102c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2103c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_WRITE: 2104c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.write; 2105c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2106c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_CMND: 2107c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.cmd; 2108c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2109c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt default: 2110c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt return; 2111c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt } 2112c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 211349f0f01c9966639f8fd7ce784a412e22057d9f2aChristof Schmitt spin_lock(&unit->latencies.lock); 2114c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_inf->channel_lat); 2115c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_inf->fabric_lat); 2116c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat->counter++; 211749f0f01c9966639f8fd7ce784a412e22057d9f2aChristof Schmitt spin_unlock(&unit->latencies.lock); 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21200997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#ifdef CONFIG_BLK_DEV_IO_TRACE 21210997f1c5fec0b540784611036d458a84a1f7029aStefan Rasplstatic void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req) 21220997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl{ 21230997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct fsf_qual_latency_info *lat_inf; 21240997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct scsi_cmnd *scsi_cmnd = (struct scsi_cmnd *)fsf_req->data; 21250997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct request *req = scsi_cmnd->request; 21260997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct zfcp_blk_drv_data trace; 21270997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl int ticks = fsf_req->adapter->timer_ticks; 21280997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 21290997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags = 0; 21300997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.magic = ZFCP_BLK_DRV_DATA_MAGIC; 21310997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl if (fsf_req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) { 21320997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags |= ZFCP_BLK_LAT_VALID; 21330997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl lat_inf = &fsf_req->qtcb->prefix.prot_status_qual.latency_info; 21340997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.channel_lat = lat_inf->channel_lat * ticks; 21350997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.fabric_lat = lat_inf->fabric_lat * ticks; 21360997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl } 21370997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl if (fsf_req->status & ZFCP_STATUS_FSFREQ_ERROR) 21380997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags |= ZFCP_BLK_REQ_ERROR; 213942428f747a8a0db9c6de03e105932316defad65dSwen Schillig trace.inb_usage = fsf_req->queue_req.qdio_inb_usage; 214042428f747a8a0db9c6de03e105932316defad65dSwen Schillig trace.outb_usage = fsf_req->queue_req.qdio_outb_usage; 21410997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 21420997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl blk_add_driver_data(req->q, req, &trace, sizeof(trace)); 21430997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 21440997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#else 21450997f1c5fec0b540784611036d458a84a1f7029aStefan Rasplstatic inline void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req) 21460997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl{ 21470997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 21480997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#endif 21490997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2150c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21520ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig struct scsi_cmnd *scpnt; 21531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 2154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 21551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 sns_len; 2156f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 21571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 21581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 2160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 21610ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig scpnt = req->data; 21620ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig if (unlikely(!scpnt)) { 21630ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21640ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig return; 21650ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig } 21660ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig 2167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) { 2168feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_SOFT_ERROR); 21691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 2173feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2177feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_msg_byte(scpnt, COMMAND_COMPLETE); 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->result |= fcp_rsp_iu->scsi_status; 21801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) 2182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_latency(req); 2183c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 21840997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl zfcp_fsf_trace_latency(req); 21850997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_rsp_len_valid)) { 2187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fcp_rsp_info[3] == RSP_CODE_GOOD) 2188feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_OK); 2189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2190feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21916f71d9bc025b02a8cbc2be83b0226a7043a507a5<jejb@titanic.il.steeleye.com> goto skip_fsfstatus; 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_sns_len_valid)) { 2196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sns_len = FSF_FCP_RSP_SIZE - sizeof(struct fcp_rsp_iu) + 2197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_rsp_iu->fcp_rsp_len; 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, (u32) SCSI_SENSE_BUFFERSIZE); 21991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, fcp_rsp_iu->fcp_sns_len); 22001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22019d058ecfd444d247b7448e0ef44647514d91a4f2FUJITA Tomonori memcpy(scpnt->sense_buffer, 22021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds zfcp_get_fcp_sns_info_ptr(fcp_rsp_iu), sns_len); 22031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_resid_under)) { 22067936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scsi_set_resid(scpnt, fcp_rsp_iu->fcp_resid); 22077936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori if (scsi_bufflen(scpnt) - scsi_get_resid(scpnt) < 22087936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scpnt->underflow) 2209feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 22101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 22128a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin if (scpnt->result != 0) 22135771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("erro", 3, req->adapter->dbf, scpnt, req); 22148a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else if (scpnt->retries > 0) 22155771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("retr", 4, req->adapter->dbf, scpnt, req); 22168a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else 22175771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_scsi_result("norm", 6, req->adapter->dbf, scpnt, req); 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 22201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 22211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 22221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 22231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 22261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 22311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 2233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 2234f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 22351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if ((fcp_rsp_info[3] != RSP_CODE_GOOD) || 2237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2251c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 22531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 22585ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); 2259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 22635ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); 2264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 22681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2274ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2275ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 22777ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22787ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", 22805ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2285ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2286ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 22887ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22897ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22905ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", 22915ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 22955ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fssfch5", req); 2296c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 23005ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fssfch6", req); 2301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 23076f53a2d2ecaefa3ffff8864f51a3ae38737e1152Swen Schillig zfcp_fc_test_link(unit->port); 2308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 23091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 23101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23217ba58c9cc16d296290fe645acb11db2b01276544Swen Schilligstatic void zfcp_set_fcp_dl(struct fcp_cmnd_iu *fcp_cmd, u32 fcp_dl) 23227ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig{ 23237ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig u32 *fcp_dl_ptr; 23247ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig 23257ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig /* 23267ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * fcp_dl_addr = start address of fcp_cmnd structure + 23277ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * size of fixed part + size of dynamically sized add_dcp_cdb field 23287ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * SEE FCP-2 documentation 23297ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig */ 23307ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig fcp_dl_ptr = (u32 *) ((unsigned char *) &fcp_cmd[1] + 23317ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (fcp_cmd->add_fcp_cdb_length << 2)); 23327ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig *fcp_dl_ptr = fcp_dl; 23337ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig} 23347ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig 2335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 23391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 234063caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittint zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, 234163caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct scsi_cmnd *scsi_cmnd) 23421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 2345bc90c8632f63cd94246e3fb6f1b6d7ecba48f1a0Christof Schmitt unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; 2346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 234763caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 2348564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 23491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 23531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2354564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock(&qdio->req_q_lock); 2355564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (atomic_read(&qdio->req_q.count) <= 0) { 2356564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 2357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23588fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt } 235909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2360564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 2361a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.scsi_req); 236209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2363025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 236809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_get(unit); 2370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &(req->qtcb->bottom.io.fcp_cmnd); 2380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2383c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in FCP_CMND IU 2386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 23901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->rddata = 1; 2394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 2397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_WRITE; 2398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->wddata = 1; 23991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 2401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 24021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely((scsi_cmnd->device->simple_tags) || 2405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ((atomic_read(&unit->status) & ZFCP_STATUS_UNIT_READONLY) && 2406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (atomic_read(&unit->status) & ZFCP_STATUS_UNIT_SHARED)))) 2407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = SIMPLE_Q; 2408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = UNTAGGED; 24101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(scsi_cmnd->cmd_len > FCP_CDB_LENGTH)) 2412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->add_fcp_cdb_length = 2413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (scsi_cmnd->cmd_len - FCP_CDB_LENGTH) >> 2; 24141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fcp_cmnd_iu->fcp_cdb, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); 241645633fdc9615f9fd2a0ae18e301562298b15abf3Christof Schmitt 2417c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 24187ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig fcp_cmnd_iu->add_fcp_cdb_length + sizeof(u32); 24191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2420564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, sbtype, 2421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_sglist(scsi_cmnd), 2422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(real_bytes < 0)) { 242442428f747a8a0db9c6de03e105932316defad65dSwen Schillig if (req->queue_req.sbal_number >= FSF_MAX_SBALS_PER_REQ) { 2425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 2426ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Oversize data package, unit 0x%016Lx " 2427ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "on port 0x%016Lx closed\n", 24287ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 24297ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 24305ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req); 2431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EINVAL; 2432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 24341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2436c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_set_fcp_dl(fcp_cmnd_iu, real_bytes); 24371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 24411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2449564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock(&qdio->req_q_lock); 2450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 24511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2454c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2455c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2457c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 24581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 245963caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) 24601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 246144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2462c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 2464564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = unit->port->adapter->qdio; 24651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 24691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2470564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2471564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 2472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 247309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2474564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 2475564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_req); 247609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2477633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 2478633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 2479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2480633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 24811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 24907ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig sizeof(u32); 2491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2492564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE; 2494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 24951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &req->qtcb->bottom.io.fcp_cmnd; 2497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_management_flags = tm_flags; 24991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 25031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2507564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 2508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 25131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 25201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 25231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 252444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2525564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 2526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2527c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2544564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock_bh(&qdio->req_q_lock); 2545564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (zfcp_fsf_req_sbal_get(qdio)) 2546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 25471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2548564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, NULL); 2549025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 25551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2556564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); 2557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= direction; 25588a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2561c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 25628a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2563564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, 2564564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig direction, fsf_cfdc->sg, 2565564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig FSF_MAX_SBALS_PER_REQ); 2566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2571c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2573c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2574564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock_bh(&qdio->req_q_lock); 25758a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2576c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2577058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 2578c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 25791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 25811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2582bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2583bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 2584bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO 2585bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 2586bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @sbal_idx: response queue index of SBAL to be processed 2587bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2588564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligvoid zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) 2589bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 2590564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 2591564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct qdio_buffer *sbal = qdio->resp_q.sbal[sbal_idx]; 2592bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct qdio_buffer_element *sbale; 2593bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *fsf_req; 2594bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig unsigned long flags, req_id; 2595bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig int idx; 2596bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2597bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { 2598bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2599bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig sbale = &sbal->element[idx]; 2600bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id = (unsigned long) sbale->addr; 2601bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_lock_irqsave(&adapter->req_list_lock, flags); 2602bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig fsf_req = zfcp_reqlist_find(adapter, req_id); 2603bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2604bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (!fsf_req) 2605bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig /* 2606bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Unknown request means that we have potentially memory 2607bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * corruption and must stop the machine immediately. 2608bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2609bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig panic("error: unknown req_id (%lx) on adapter %s.\n", 2610bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id, dev_name(&adapter->ccw_device->dev)); 2611bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2612bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&fsf_req->list); 2613bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig spin_unlock_irqrestore(&adapter->req_list_lock, flags); 2614bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 261542428f747a8a0db9c6de03e105932316defad65dSwen Schillig fsf_req->queue_req.sbal_response = sbal_idx; 261642428f747a8a0db9c6de03e105932316defad65dSwen Schillig fsf_req->queue_req.qdio_inb_usage = 2617564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_read(&qdio->resp_q.count); 2618bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(fsf_req); 2619bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2620bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) 2621bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig break; 2622bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 2623bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 2624