zfcp_fsf.c revision 5ffd51a5e495a2a002efd523aef0001912b080bd
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * zfcp device driver 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * Implementation of FSF commands. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * Copyright IBM Corporation 2002, 2008 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" 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1563caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt#define ZFCP_REQ_AUTO_CLEANUP 0x00000002 1663caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt#define ZFCP_REQ_NO_QTCB 0x00000008 1763caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt 18287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_request_timeout_handler(unsigned long data) 19287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 20287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; 215ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 225ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsrth_1", NULL); 23287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 24287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 25287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, 26287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt unsigned long timeout) 27287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 28287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_fsf_request_timeout_handler; 29287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->adapter; 30287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + timeout; 31287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 32287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 33287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 34287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) 35287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 36287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt BUG_ON(!fsf_req->erp_action); 37287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_erp_timeout_handler; 38287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->erp_action; 39287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + 30 * HZ; 40287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 41287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 42287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* association between FSF command and FSF QTCB type */ 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 fsf_qtcb_type[] = { 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 60553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) 61553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 62c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u16 subtable = table >> 16; 63553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt u16 rule = table & 0xffff; 64ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; 65553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 66ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt if (subtable && subtable < ARRAY_SIZE(act_type)) 67553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 68ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied according to ACT rule type %s, " 69ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "rule %d\n", act_type[subtable], rule); 70553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 71553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 72553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, 73553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_port *port) 74553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 75553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 76553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 77ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to port 0x%016Lx\n", 787ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 79553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 80553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 815ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_access_denied(port, "fspad_1", req); 82553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 83553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 84553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 85553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, 86553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_unit *unit) 87553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 88553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct fsf_qtcb_header *header = &req->qtcb->header; 89553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&req->adapter->ccw_device->dev, 90ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Access denied to unit 0x%016Lx on port 0x%016Lx\n", 917ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 927ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 93553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); 94553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); 955ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsuad_1", req); 96553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 97553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 98553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 99553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) 100553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 101ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_err(&req->adapter->ccw_device->dev, "FCP device not " 102ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "operational because of an unsupported FC class\n"); 1035ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); 104553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 105553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 106553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 107c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_free - free memory used by fsf request 109c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: pointer to struct zfcp_fsf_req 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 111c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_free(struct zfcp_fsf_req *req) 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->pool)) { 114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(req, req->pool); 115dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 116dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 117dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens 118c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb) { 119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig kmem_cache_free(zfcp_data.fsf_req_qtcb_cache, req); 120dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 121dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_dismiss_all - dismiss all fsf requests 126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 128869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * Never ever call this without shutting down the adapter first. 129869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * Otherwise the adapter would continue using and corrupting s390 storage. 130869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * Included BUG_ON() call to ensure this is done. 131869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke * ERP is supposed to be the only user of this function. 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1336fcc47111ae14f284007e1b9a5002babb01d913cSwen Schilligvoid zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req, *tmp; 136fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske unsigned long flags; 1376fcc47111ae14f284007e1b9a5002babb01d913cSwen Schillig LIST_HEAD(remove_queue); 138869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke unsigned int i; 139fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske 140c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); 141fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske spin_lock_irqsave(&adapter->req_list_lock, flags); 142869b2b444c58302e3233ce0b671fabf28135a37dMartin Peschke for (i = 0; i < REQUEST_LIST_SIZE; i++) 1436fcc47111ae14f284007e1b9a5002babb01d913cSwen Schillig list_splice_init(&adapter->req_list[i], &remove_queue); 144fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske spin_unlock_irqrestore(&adapter->req_list_lock, flags); 145fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3Volker Sameske 146c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_for_each_entry_safe(req, tmp, &remove_queue, list) { 147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_del(&req->list); 148c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; 149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_complete(req); 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port; 158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int d_id = sr_buf->d_id & ZFCP_DID_MASK; 159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unsigned long flags; 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&zfcp_data.config_lock, flags); 162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_for_each_entry(port, &adapter->port_list_head, list) 163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (port->d_id == d_id) { 164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&zfcp_data.config_lock, flags); 1655ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(port, 0, "fssrpc1", req); 166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 168c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&zfcp_data.config_lock, flags); 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1715ffd51a5e495a2a002efd523aef0001912b080bdSwen Schilligstatic void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id, 172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *link_down) 173aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin{ 174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 175698ec01635819c5ae60090bb4efcbeffc41642fbMartin Peschke 176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) 177ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin return; 178ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 179ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); 180ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!link_down) 1822f8f3ed5fc566700cf45d422f4cf1624bd123d93Andreas Herrmann goto out; 183ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 184aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin switch (link_down->error_code) { 185aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_LIGHT: 186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 187ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is no light signal from the local " 188ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel cable\n"); 189aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 190aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WRAP_PLUG: 191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 192ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is a wrap plug instead of a fibre " 193ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "channel cable\n"); 194aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 195aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP: 196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 197ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent fibre channel node does not " 198ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "support FCP\n"); 199aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 200aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FIRMWARE_UPDATE: 201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 202ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device is suspended because of a " 203ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "firmware update\n"); 204553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt break; 205aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_INVALID_WWPN: 206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 207ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device detected a WWPN that is " 208ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "duplicate or not valid\n"); 209aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 210aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_NPIV_SUPPORT: 211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 212ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The fibre channel fabric does not support NPIV\n"); 213aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 214aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP_RESOURCES: 215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 216ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter cannot support more NPIV ports\n"); 217aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 218aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: 219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 220ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent switch cannot support " 221ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "more NPIV ports\n"); 222aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 223aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: 224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 225ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter could not log in to the " 226ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel fabric\n"); 227aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 228aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: 229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 230ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The WWPN assignment file on the FCP adapter " 231ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 232aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 233aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: 234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 235ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The mode table on the FCP adapter " 236ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 237aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 238aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: 239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 240ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "All NPIV ports on the FCP adapter have " 241ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "been assigned\n"); 242aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 243aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin default: 244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 245ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The link between the FCP adapter and " 246ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "the FC fabric is down\n"); 247aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_failed(adapter, id, req); 250aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin} 251aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 252c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *ldi = 256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (struct fsf_link_down_info *) &sr_buf->payload; 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: 2605ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi); 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FDISC_FAILED: 2635ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi); 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: 2665ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL); 267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig }; 268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) 271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("dism", adapter, sr_buf); 277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("read", adapter, sr_buf); 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_type) { 285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_PORT_CLOSED: 286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_port_closed(req); 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 288c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_INCOMING_ELS: 289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_incoming_els(req); 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SENSE_DATA_AVAIL: 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: 294ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_warn(&adapter->ccw_device->dev, 295ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The error threshold for checksum statistics " 296ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been exceeded\n"); 29757069386699994c3e67042fc4928c418f3a39e01Swen Schillig zfcp_hba_dbf_event_berr(adapter, req); 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_DOWN: 300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_link_down(req); 301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_UP: 303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 304ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The local link has been restored\n"); 305c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 3065ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, 307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 3125ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fssrh_2", req); 313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_NOTIFICATION_LOST: 315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) 3165ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_3", 3175ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) 319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig schedule_work(&adapter->scan_work); 320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_CFDC_UPDATED: 3225ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); 323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: 325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = sr_buf->payload.word[0]; 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_inc(&adapter->stat_miss); 333b7f15f3c94196accac799727502ed88a029ae7efSwen Schillig queue_work(zfcp_data.work_queue, &adapter->stat_work); 334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) 337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_FCP_RSP_AVAILABLE: 340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RETRY_POSSIBLE: 342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_COMMAND_ABORTED: 345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTED; 346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RECOM: 348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 349ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter reported a problem " 350ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "that cannot be recovered\n"); 3515ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); 352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* all non-return stats set FSFREQ_ERROR*/ 355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_UNKNOWN_COMMAND: 365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 366ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter does not recognize the command 0x%x\n", 367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command); 3685ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); 369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_qual_eval(req); 373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) 378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 383c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_response(req); 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */ 388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->prefix.prot_status) { 392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_GOOD: 393c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_FSF_STATUS_PRESENTED: 394c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_QTCB_VERSION_ERROR: 396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 397ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "QTCB version 0x%x not supported by FCP adapter " 398ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, 399ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt psq->word[0], psq->word[1]); 4005ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); 401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_ERROR_STATE: 403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_SEQ_NUMB_ERROR: 4045ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); 405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_RETRY; 406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_UNSUPP_QTCB_TYPE: 408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 409ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The QTCB type is not supported by the FCP adapter\n"); 4105ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); 411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_HOST_CONNECTION_INITIALIZING: 413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, 414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 415c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_DUPLICATE_REQUEST_ID: 417c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 418ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%Lx is an ambiguous request identifier\n", 419c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (unsigned long long)qtcb->bottom.support.req_handle); 4205ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); 421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_LINK_DOWN: 4235ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fspse_5", 4245ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig &psq->link_down_info); 425c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* FIXME: reopening adapter now? better wait for link up */ 4265ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); 427c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_REEST_QUEUE: 429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 4305ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL, 431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_RUNNING, 432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_SET); 433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 4355ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 4365ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fspse_8", req); 437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 440ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%x is not a valid transfer protocol status\n", 441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->prefix.prot_status); 4425ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); 443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_complete - process completion of a FSF request 449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: The FSF request that has been completed. 450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 451c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * When a request has been completed either from the FCP adapter, 452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * or it has been dismissed due to a queue shutdown, this function 453c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * is called to process the completion status and trigger further 454c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * events related to the FSF request. 455c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_complete(struct zfcp_fsf_req *req) 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { 459c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_handler(req); 460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 461c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_protstatus_eval(req); 465c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_eval(req); 466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler(req); 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->erp_action) 469287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_notify(req->erp_action, 0); 470c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_COMPLETED; 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) 473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* notify initiator waiting for the requests completion */ 476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * FIXME: Race! We must not access fsf_req here as it might have been 478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * cleaned up already due to the set ZFCP_STATUS_FSFREQ_COMPLETED 479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * flag. It's an improbable case. But, we have the same paranoia for 480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * the cleanup flag already. 481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Might better be handled using complete()? 482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * (setting the flag and doing wakeup ought to be atomic 483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * with regard to checking the flag as long as waitqueue is 484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * part of the to be released structure) 485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wake_up(&req->completion_wq); 487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) 490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom; 492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.config; 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = bottom->nport_serv_param.wwnn; 501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = bottom->nport_serv_param.wwpn; 502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = bottom->s_id & ZFCP_DID_MASK; 503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = bottom->fc_link_speed; 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; 505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = bottom->adapter_type; 507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->timer_ticks = bottom->timer_interval; 508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = bottom->peer_d_id & ZFCP_DID_MASK; 515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = bottom->plogi_payload.wwpn; 516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = bottom->plogi_payload.wwnn; 517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 518c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 520c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 523c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 526ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 527ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 5285ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); 529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 536553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 537553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 541553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 550c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5518a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 555c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 559ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 560ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 561ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 5625ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); 563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 571c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 573c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 574c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 576c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 577c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsecdh2", 580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 582c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 5835ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); 584c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 585c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 587c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 589c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 590c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 591c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 592c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 593c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 595c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 596c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 597ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 598ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5995ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); 600c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 601c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 602c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 603c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 604ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 605ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 6065ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); 607c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 608c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 610c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 611c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 612c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 613c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 614c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 616c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 617c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 6189eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 619c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) 620c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 621c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 622c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 623c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 624c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 631c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 636c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 637c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 638c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 639c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 6405ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_fsf_link_down_info_eval(req, "fsepdh1", 641c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 642aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 644c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 645d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 646c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter) 647dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt __releases(&adapter->req_q_lock) 648dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt __acquires(&adapter->req_q_lock) 649c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 650dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt struct zfcp_qdio_queue *req_q = &adapter->req_q; 651c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig long ret; 652c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 653dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt if (atomic_read(&req_q->count) <= -REQUEST_LIST_SIZE) 654dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt return -EIO; 655dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt if (atomic_read(&req_q->count) > 0) 656dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt return 0; 657dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt 658dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt atomic_dec(&req_q->count); 6590406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 660c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = wait_event_interruptible_timeout(adapter->request_wq, 661dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt atomic_read(&req_q->count) >= 0, 662dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt 5 * HZ); 663dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt spin_lock_bh(&adapter->req_q_lock); 664dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt atomic_inc(&req_q->count); 665dedbc2b3cb8404c618975bd2811c7605a4ccb51eChristof Schmitt 666c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret > 0) 667c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 6682450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl if (!ret) 6692450d3e7b8604d0abb042817f2502cb7ee0b782fStefan Raspl atomic_inc(&adapter->qdio_outb_full); 670c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 671c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 672c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 673c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc_noqtcb(mempool_t *pool) 674c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 675c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 676c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 677c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!req) 678c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 679c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 68088f2a977870af655296a682fe2a58c822cd25bb2Christof Schmitt req->pool = pool; 681c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 682c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 683c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 684c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc_qtcb(mempool_t *pool) 685c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 686c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req_qtcb *qtcb; 687c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 689c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = kmem_cache_alloc(zfcp_data.fsf_req_qtcb_cache, 692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig GFP_ATOMIC); 693c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 695c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->fsf_req.qtcb = &qtcb->qtcb; 698c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->fsf_req.pool = pool; 699c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 700c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return &qtcb->fsf_req; 701c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 702c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 703c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter, 704c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig u32 fsf_cmd, int req_flags, 705c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_t *pool) 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 70744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 709c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 710c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_qdio_queue *req_q = &adapter->req_q; 711951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req_flags & ZFCP_REQ_NO_QTCB) 713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_alloc_noqtcb(pool); 714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_alloc_qtcb(pool); 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 717c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 720c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 721c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 723c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 724c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 725c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_waitqueue_head(&req->completion_wq); 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 727c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 72952bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt req->req_id = adapter->req_no; 730c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_number = 1; 731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_first = req_q->first; 732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbal_last = req_q->first; 733c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = 1; 734c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 735c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 736c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].addr = (void *) req->req_id; 737c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_COMMAND; 738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->qtcb)) { 740c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = req->adapter->fsf_req_seq_no; 741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 742c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 743c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 744c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->seq_no = adapter->fsf_req_seq_no; 748c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].addr = (void *) req->qtcb; 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].length = sizeof(struct fsf_qtcb); 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EIO); 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 757951f746fece2e24a26853b3872d16e9013b6fe0bChristof Schmitt 758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req_flags & ZFCP_REQ_AUTO_CLEANUP)) 759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 764c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 766c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 76745316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens unsigned long flags; 768c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int idx; 769c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* put allocated FSF request into hash table */ 77145316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_lock_irqsave(&adapter->req_list_lock, flags); 772c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig idx = zfcp_reqlist_hash(req->req_id); 773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig list_add_tail(&req->list, &adapter->req_list[idx]); 77445316a86a67934ab499dcfac44c91aa8f39c4c78Heiko Carstens spin_unlock_irqrestore(&adapter->req_list_lock, flags); 775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 7763765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt req->qdio_outb_usage = atomic_read(&adapter->req_q.count); 777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 778c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_qdio_send(req)) { 779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 7803765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_lock_irqsave(&adapter->req_list_lock, flags); 7813765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt /* lookup request again, list might have changed */ 7823765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt if (zfcp_reqlist_find_safe(adapter, req)) 7833765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt zfcp_reqlist_remove(adapter, req); 7843765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt spin_unlock_irqrestore(&adapter->req_list_lock, flags); 7855ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); 786c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 788c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 789c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 790c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb) 791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 79252bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt adapter->req_no++; 793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 797c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 800c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 801c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_status_read(struct zfcp_adapter *adapter) 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 80744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8100406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 811c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 814c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_UNSOLICITED_STATUS, 815c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_NO_QTCB, 816c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_status_read); 817025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_STATUS; 824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; 825c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = 2; 826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 827c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sr_buf = mempool_alloc(adapter->pool.data_status_read, GFP_ATOMIC); 828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 829c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 833c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 834c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_curr(req); 835c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->addr = (void *) sr_buf; 836c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale->length = sizeof(*sr_buf); 837059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 838c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 840c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 842c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 844c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(sr_buf, adapter->pool.data_status_read); 846c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 847c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 848c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL); 849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 8500406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 852c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 853c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 854c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 856c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8655ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, 8665ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsafch1", req); 867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 871c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 8725ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); 873c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 877c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 8805ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsafch3", req); 881c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 882c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 8855ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fsafch4", req); 886c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 887c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 89265a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 894c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 899c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 905c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_abort_fcp_command - abort running SCSI command 906c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @old_req_id: unsigned long 907c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 908c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, 91263caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_unit *unit) 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 91444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 91663caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 9178a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 91892cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 91992cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 920c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND, 92263caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt 0, adapter->pool.fsf_req_abort); 923633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 924633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 925c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 926633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 9272abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 928c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 929c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 933c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 941c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 942c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 943c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 944c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 945c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 95092cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 954c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 956c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 957c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_ct *send_ct = req->data; 958c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 960c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = -EINVAL; 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 962c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_ct_response(req); 968c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_ct->status = 0; 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 971c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 977c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 984c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 985c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 987c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 9885ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); 989c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 994c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 999c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (send_ct->handler) 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_ct->handler(send_ct->handler_data); 1001c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 100339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmittstatic int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, 100439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_req, 100539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_resp, 100639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt int max_sbals) 1007c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 100839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(req); 100939eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt u32 feat = req->adapter->adapter_features; 1010c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 1011c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 101239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { 101339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (sg_req->length > PAGE_SIZE || sg_resp->length > PAGE_SIZE || 101439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt !sg_is_last(sg_req) || !sg_is_last(sg_resp)) 101539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return -EOPNOTSUPP; 101639eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 101739eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ; 101839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt sbale[2].addr = sg_virt(sg_req); 101939eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt sbale[2].length = sg_req->length; 102039eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt sbale[3].addr = sg_virt(sg_resp); 102139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt sbale[3].length = sg_resp->length; 102239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY; 102339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return 0; 102439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt } 102539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 1026c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ, 1027c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_req, max_sbals); 1028c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 1029c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -ENOMEM; 1030c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 1031c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->sbale_curr = ZFCP_LAST_SBALE_PER_SBAL; 1032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1033c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ, 1034c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sg_resp, max_sbals); 1035c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 1036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -ENOMEM; 1037c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.resp_buf_length = bytes; 1038c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1039c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1043c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 1044c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 1045c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 1046c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: if non-null the Generic Service request sent within ERP 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1048c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool, 1049c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_erp_action *erp_action) 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = ct->wka_port; 10525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_adapter *adapter = wka_port->adapter; 1053c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1054c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10560406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1058c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1060c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_GENERIC, 1061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, pool); 1062025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1063c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1064c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10653f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 10663f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 106739eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt ret = zfcp_fsf_setup_ct_els_sbals(req, ct->req, ct->resp, 106839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt FSF_MAX_SBALS_PER_REQ); 1069553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1072c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 10735ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 1074c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.service_class = FSF_CLASS_3; 1075c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.timeout = ct->timeout; 1076c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1077c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1078c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_ct_request(req); 1079c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1080c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (erp_action) { 1081c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1082c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1083287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1084c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } else 1085c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1087c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1088c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1089c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1091c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1093c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1094c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1095c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (erp_action) 1096c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 1097c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 10980406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 1099c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1102c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1104c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_send_els *send_els = req->data; 1105c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1106c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 1115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_els_response(req); 1116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 112464b29a130901d5b8578e9f602cf2dae56aaff224Andreas Herrmann if (port && (send_els->ls_code != ZFCP_LS_ADISC)) 112564b29a130901d5b8578e9f602cf2dae56aaff224Andreas Herrmann zfcp_test_link(port); 1126c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /*fall through */ 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1141c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1143c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1145c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1149aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1151c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1154c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1155c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1156c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 1157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_send_els(struct zfcp_send_els *els) 1158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = els->adapter; 1161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 1162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1163c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&els->port->status) & 1165c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 1166c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 1167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11688fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt spin_lock_bh(&adapter->req_q_lock); 11698fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 1170c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1171c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_ELS, 1172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, NULL); 1173025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 117839eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt ret = zfcp_fsf_setup_ct_els_sbals(req, els->req, els->resp, 2); 117944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig 1180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1183c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 1184c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1185c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->d_id = els->d_id; 1186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->service_class = FSF_CLASS_3; 1187c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->timeout = 2 * R_A_TOV; 1188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1189c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_san_dbf_event_els_request(req); 1191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1195c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1198c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 12028fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt spin_unlock_bh(&adapter->req_q_lock); 1203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 120844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 121052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12130406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 121492cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 1215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, 1217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_QTCB_EXCHANGE_CONFIG_DATA, 1218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1220025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1221c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 122652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 122752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1230aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1231aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 12329eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1233aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1238287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 12450406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 124652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 124752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter, 1250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 125152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 125244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12560406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1258c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA, 1261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 0, NULL); 1262025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 126552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 126652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 126852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 126952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 1270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 127152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1272c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 127352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 127452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 127552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 127652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 127752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 127852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 128052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 12840406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 1285553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wait_event(req->completion_wq, 1287c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status & ZFCP_STATUS_FSFREQ_COMPLETED); 128852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 129052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1296aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 130144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 130352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1306553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 130752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13090406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 131092cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 1311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 1313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1315025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1318aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1319aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 132152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 132252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 132752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1328287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 133252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig erp_action->fsf_req = NULL; 133352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 13350406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 133652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 133752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 133852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 133952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 134052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 1342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 134452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter, 1346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 134752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 134844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 135152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1352553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 135352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 135452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 13550406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 135692cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 1357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 0, 1360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig NULL); 1361025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 136652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 136852ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 137052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 137152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 137252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 13770406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 1378553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wait_event(req->completion_wq, 1380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status & ZFCP_STATUS_FSFREQ_COMPLETED); 1381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fsf_plogi *plogi; 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 139344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1403ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 14047ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig "remote port 0x%016Lx\n", 14057ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 14065ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_failed(port, "fsoph_1", req); 1407c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1422d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1423d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1424d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els; 144139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (req->qtcb->bottom.support.els1_length >= 144239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt FSF_PLOGI_MIN_LEN) { 1443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (plogi->serv_param.wwpn != port->wwpn) 1444b98478d71b0fea6d35f96069612d92b76013589fChristof Schmitt port->d_id = 0; 1445c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 1446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig port->wwnn = plogi->serv_param.wwnn; 1447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1457c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1459c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1462c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 146444cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1465c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 14690406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1470c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, 1474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_QTCB_OPEN_PORT_WITH_DID, 1475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1477025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1480c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.d_id = erp_action->port->d_id; 1488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1492287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 14990406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 150844cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 15125ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); 1513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 15185ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_modify_port_status(port, "fscph_2", req, 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_COMMON_OPEN, 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_CLEAR); 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1527c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 153244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1535c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 15370406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 1539c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT, 1542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1544025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1553c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1554c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1555c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1559287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1560c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1562c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1565c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 15660406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) 15715ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 15725ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = req->data; 15735ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 15745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { 15765ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 15775ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15785ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15795ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15805ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig switch (header->fsf_status) { 15815ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 15825ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig dev_warn(&req->adapter->ccw_device->dev, 15835ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig "Opening WKA port 0x%x failed\n", wka_port->d_id); 15845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 15855ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15865ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ACCESS_DENIED: 15875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 15885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig break; 15895ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_PORT_ALREADY_OPEN: 15901c1cba17a9078c83a80a099bc207b208d664a13aChristof Schmitt break; 15915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_GOOD: 15925ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->handle = header->port_handle; 15935ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_ONLINE; 15945ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15955ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 15965ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 15975ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 15985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_open_wka_port - create and send open wka-port request 16015ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * @wka_port: pointer to struct zfcp_wka_port 16025ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 16045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligint zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port) 16055ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 16075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_adapter *adapter = wka_port->adapter; 16085ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16105ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16110406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 16125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 16135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16155ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req = zfcp_fsf_req_create(adapter, 16165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig FSF_QTCB_OPEN_PORT_WITH_DID, 16175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig ZFCP_REQ_AUTO_CLEANUP, 16185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig adapter->pool.fsf_req_erp); 16195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale = zfcp_qdio_sbale_req(req); 16255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 16265ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 16275ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_open_wka_port_handler; 16295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->bottom.support.d_id = wka_port->d_id; 16305ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16315ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16335ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16365ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 16370406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 16385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16395ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16405ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) 16425ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_wka_port *wka_port = req->data; 16445ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { 16465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16475ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); 16485ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16495ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16505ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->status = ZFCP_WKA_PORT_OFFLINE; 16515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 16525ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16535ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16545ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 16555ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_close_wka_port - create and send close wka port request 16565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * @erp_action: pointer to struct zfcp_erp_action 16575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 16585ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 16595ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligint zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port) 16605ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 16615ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct qdio_buffer_element *sbale; 16625ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_adapter *adapter = wka_port->adapter; 16635ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 16645ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16655ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16660406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 16675ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 16685ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16695ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT, 16715ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig ZFCP_REQ_AUTO_CLEANUP, 16725ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig adapter->pool.fsf_req_erp); 16735ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16765ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16775ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16785ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale = zfcp_qdio_sbale_req(req); 16795ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 16805ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 16815ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16825ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_close_wka_port_handler; 16835ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 16855ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16865ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16895ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16905ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 16910406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 16925ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16935ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16945ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1695c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1697c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1698c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct zfcp_unit *unit; 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1701c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1702a5b11dda12ed7e3a79180b10ad6209a40a02989fChristof Schmitt return; 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 17065ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); 1707c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1710c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_port(req, port); 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 17135ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(port, "fscpph2", req); 1714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 17165c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 17175c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 17185c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 17195c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt list_for_each_entry(unit, &port->unit_list_head, list) 17205c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 17215c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt &unit->status); 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1726c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry(unit, &port->unit_list_head, list) 1738c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1739c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &unit->status); 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1744c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1746c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1749c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 175144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1753c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 17560406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1757c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1760c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PHYSICAL_PORT, 1761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1762c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1763025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1764c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1766c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1768c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 1769c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 1770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1772c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1776c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1778287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1779c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 17850406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1789c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1792c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 1793c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1794c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 1795c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_queue_designator *queue_designator = 1796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &header->fsf_status_qual.fsf_queue_designator; 1797aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin int exclusive, readwrite; 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 180044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1803b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_SHARED | 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_UNIT_READONLY, 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 18091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 18115ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); 1812c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1816c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 1818553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 18215ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fsouh_2", req); 1822c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1823c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0]) 1827553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt dev_warn(&adapter->ccw_device->dev, 1828ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "LUN 0x%Lx on port 0x%Lx is already in " 1829ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "use by CSS%d, MIF Image ID %x\n", 18307ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18317ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn, 1832ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->cssid, 1833ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt queue_designator->hla); 1834c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 1835553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt zfcp_act_eval_err(adapter, 1836553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt header->fsf_status_qual.word[2]); 18375ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_access_denied(unit, "fsouh_3", req); 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); 1840c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1843c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1844ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1845ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 18467ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18477ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18485ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_4", req); 1849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1851c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 185665a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 1857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit->handle = header->lun_handle; 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 1867aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 1868aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && 1869aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && 1870aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin (adapter->ccw_device->id.dev_model != ZFCP_DEVICE_MODEL_PRIV)) { 1871aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin exclusive = (bottom->lun_access_info & 1872aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_EXCLUSIVE); 1873aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin readwrite = (bottom->lun_access_info & 1874aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); 1875aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!exclusive) 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!readwrite) { 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &unit->status); 1883c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 1884ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "SCSI device at LUN 0x%016Lx on port " 1885ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx opened read-only\n", 18867ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18877ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (exclusive && !readwrite) { 1891c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1892ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Exclusive read-only access not " 1893ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, " 1894ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx)\n", 18957ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 18967ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 18975ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_5", req); 1898c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18995ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!exclusive && readwrite) { 1901c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 1902ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Shared read-write access not " 1903ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "supported (unit 0x%016Lx, port " 190427c3f0a6e4521ba0ff6e76da54969f0bf430f53aChristof Schmitt "0x%016Lx)\n", 19057ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 19067ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 19075ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_failed(unit, "fsouh_7", req); 1908c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19095ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1916c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1917c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_unit - open unit 1918c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1919c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1921c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 192344cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 1924c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1925c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1926c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1927c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 19280406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 1929c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1932c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_OPEN_LUN, 1933c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 1934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 1935025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1939c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1940c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1944c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1945c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; 1946c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_unit_handler; 1947c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 1948c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1949c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 1950c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1951c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 1952c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 1953c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1954287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1955c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1957c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds erp_action->fsf_req = NULL; 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1960c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 19610406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1965c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1967c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->data; 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1969c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 197044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1972c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 19731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 19745ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); 1975c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 19785ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); 1979c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 19825ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fscuh_3", req); 1983c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 1984c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 19851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 1987c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 198965a8d4e1a3754f0bfaa62949ebe919930e3127a1Andreas Herrmann zfcp_test_link(unit->port); 1990c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1992c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2003c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_unit - close zfcp unit 2004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_unit 2005c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2007c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 200944cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2010c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 2011c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2012c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20140406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 2015c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2017c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_LUN, 2018c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_REQ_AUTO_CLEANUP, 2019c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_erp); 2020025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2022c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2023c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 20241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2025c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2026c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; 20271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 20281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2029c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 2030c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = erp_action->unit->handle; 2031c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_unit_handler; 2032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->unit; 2033c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 2034c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = req; 2035fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 2036287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 2037c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2038c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 2039c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2040c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig erp_action->fsf_req = NULL; 2041c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 20430406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 2044c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2047c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 2048c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2049c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 2050c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 2051c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 2052c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 2053c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2054c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_req_latency(struct zfcp_fsf_req *req) 2055c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 2056c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct fsf_qual_latency_info *lat_inf; 2057c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt struct latency_cont *lat; 2058c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit = req->unit; 2059c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2060c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_inf = &req->qtcb->prefix.prot_status_qual.latency_info; 2061c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 2062c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->bottom.io.data_direction) { 2063c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_READ: 2064c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.read; 2065c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2066c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_WRITE: 2067c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.write; 2068c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2069c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt case FSF_DATADIR_CMND: 2070c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat = &unit->latencies.cmd; 2071c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt break; 2072c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt default: 2073c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt return; 2074c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt } 2075c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 207649f0f01c9966639f8fd7ce784a412e22057d9f2aChristof Schmitt spin_lock(&unit->latencies.lock); 2077c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_inf->channel_lat); 2078c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_inf->fabric_lat); 2079c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat->counter++; 208049f0f01c9966639f8fd7ce784a412e22057d9f2aChristof Schmitt spin_unlock(&unit->latencies.lock); 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20830997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#ifdef CONFIG_BLK_DEV_IO_TRACE 20840997f1c5fec0b540784611036d458a84a1f7029aStefan Rasplstatic void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req) 20850997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl{ 20860997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct fsf_qual_latency_info *lat_inf; 20870997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct scsi_cmnd *scsi_cmnd = (struct scsi_cmnd *)fsf_req->data; 20880997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct request *req = scsi_cmnd->request; 20890997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl struct zfcp_blk_drv_data trace; 20900997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl int ticks = fsf_req->adapter->timer_ticks; 20910997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 20920997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags = 0; 20930997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.magic = ZFCP_BLK_DRV_DATA_MAGIC; 20940997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl if (fsf_req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) { 20950997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags |= ZFCP_BLK_LAT_VALID; 20960997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl lat_inf = &fsf_req->qtcb->prefix.prot_status_qual.latency_info; 20970997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.channel_lat = lat_inf->channel_lat * ticks; 20980997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.fabric_lat = lat_inf->fabric_lat * ticks; 20990997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl } 21000997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl if (fsf_req->status & ZFCP_STATUS_FSFREQ_ERROR) 21010997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.flags |= ZFCP_BLK_REQ_ERROR; 21020997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.inb_usage = fsf_req->qdio_inb_usage; 21030997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl trace.outb_usage = fsf_req->qdio_outb_usage; 21040997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 21050997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl blk_add_driver_data(req->q, req, &trace, sizeof(trace)); 21060997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 21070997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#else 21080997f1c5fec0b540784611036d458a84a1f7029aStefan Rasplstatic inline void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req) 21090997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl{ 21100997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 21110997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#endif 21120997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 2113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 21141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21150ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig struct scsi_cmnd *scpnt; 21161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 2117c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 sns_len; 2119f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 21211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2122c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_lock_irqsave(&req->adapter->abort_lock, flags); 2123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 21240ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig scpnt = req->data; 21250ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig if (unlikely(!scpnt)) { 21260ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21270ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig return; 21280ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig } 21290ac55aa90f2c3bd08e57e52a513b82b18ce0a5bcSwen Schillig 2130c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) { 2131feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_SOFT_ERROR); 21321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 2136feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 21381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2140feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_msg_byte(scpnt, COMMAND_COMPLETE); 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->result |= fcp_rsp_iu->scsi_status; 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) 2145c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_latency(req); 2146c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 21470997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl zfcp_fsf_trace_latency(req); 21480997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_rsp_len_valid)) { 2150c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fcp_rsp_info[3] == RSP_CODE_GOOD) 2151feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_OK); 2152c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2153feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21546f71d9bc025b02a8cbc2be83b0226a7043a507a5<jejb@titanic.il.steeleye.com> goto skip_fsfstatus; 21551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_sns_len_valid)) { 2159c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sns_len = FSF_FCP_RSP_SIZE - sizeof(struct fcp_rsp_iu) + 2160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_rsp_iu->fcp_rsp_len; 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, (u32) SCSI_SENSE_BUFFERSIZE); 21621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sns_len = min(sns_len, fcp_rsp_iu->fcp_sns_len); 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21649d058ecfd444d247b7448e0ef44647514d91a4f2FUJITA Tomonori memcpy(scpnt->sense_buffer, 21651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds zfcp_get_fcp_sns_info_ptr(fcp_rsp_iu), sns_len); 21661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 21671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(fcp_rsp_iu->validity.bits.fcp_resid_under)) { 21697936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scsi_set_resid(scpnt, fcp_rsp_iu->fcp_resid); 21707936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori if (scsi_bufflen(scpnt) - scsi_get_resid(scpnt) < 21717936a892e72498a05b9a7fb1fec6506d65c8e435FUJITA Tomonori scpnt->underflow) 2172feac6a07c4a3578bffd6769bb4927e8a7e1f3ffeMartin Petermann set_host_byte(scpnt, DID_ERROR); 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2174c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 21758a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin if (scpnt->result != 0) 2176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("erro", 3, req->adapter, scpnt, req); 21778a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else if (scpnt->retries > 0) 2178c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("retr", 4, req->adapter, scpnt, req); 21798a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin else 2180c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_scsi_dbf_event_result("norm", 6, req->adapter, scpnt, req); 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scpnt->host_scribble = NULL; 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (scpnt->scsi_done) (scpnt); 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We must hold this lock until scsi_done has been called. 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise we may call scsi_done after abort regarding this 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * command has completed. 21881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: scsi_done must not block! 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 2196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &(req->qtcb->bottom.io.fcp_rsp); 2197f76af7d7e36373179be7a9e09f6b0aae330549b7Martin Petermann char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if ((fcp_rsp_info[3] != RSP_CODE_GOOD) || 2200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2202c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2204c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) 2206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2207c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_unit *unit; 2208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 2209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) 2211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->data; 2212c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unit = req->unit; 2214c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 22161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 22171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2219c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2220c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 22215ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); 2222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2225c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 22265ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); 2227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2230c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 22311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_access_denied_unit(req, unit); 2234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2235c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2237ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect direction %d, unit 0x%016Lx on port " 2238ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 22407ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22417ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22425ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", 22435ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2245c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2246c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2248ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Incorrect CDB length %d, unit 0x%016Lx on " 2249ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2250c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 22517ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 22527ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 22535ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", 22545ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig req); 2255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2256c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 22585ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_boxed(unit->port, "fssfch5", req); 2259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 22635ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_boxed(unit, "fssfch6", req); 2264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR | 2265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_FSFREQ_RETRY; 2266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2267c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 2270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_test_link(unit->port); 2271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 22721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 22731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2274c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligskip_fsfstatus: 2275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_ctm_handler(req); 2277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_send_fcp_command_task_handler(req); 2279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = NULL; 2280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22847ba58c9cc16d296290fe645acb11db2b01276544Swen Schilligstatic void zfcp_set_fcp_dl(struct fcp_cmnd_iu *fcp_cmd, u32 fcp_dl) 22857ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig{ 22867ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig u32 *fcp_dl_ptr; 22877ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig 22887ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig /* 22897ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * fcp_dl_addr = start address of fcp_cmnd structure + 22907ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * size of fixed part + size of dynamically sized add_dcp_cdb field 22917ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig * SEE FCP-2 documentation 22927ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig */ 22937ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig fcp_dl_ptr = (u32 *) ((unsigned char *) &fcp_cmd[1] + 22947ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (fcp_cmd->add_fcp_cdb_length << 2)); 22957ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig *fcp_dl_ptr = fcp_dl; 22967ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig} 22977ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) 2300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: unit where command is sent to 2301c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 23021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 230363caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittint zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, 230463caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct scsi_cmnd *scsi_cmnd) 23051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 2307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 2308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig unsigned int sbtype; 2309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int real_bytes, retval = -EIO; 231063caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 23111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 23151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23160406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock(&adapter->req_q_lock); 23178fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt if (atomic_read(&adapter->req_q.count) <= 0) { 23188fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt atomic_inc(&adapter->qdio_outb_full); 2319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23208fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt } 232163caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, 232263caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt ZFCP_REQ_AUTO_CLEANUP, 2323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_scsi); 2324025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_get(unit); 2330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->unit = unit; 2331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &(req->qtcb->bottom.io.fcp_cmnd); 2340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* 2342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * set depending on data direction: 2343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in SBALE (SB Type) 2344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in QTCB 2345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * data direction bits in FCP_CMND IU 2346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 2347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (scsi_cmnd->sc_data_direction) { 2348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_NONE: 2349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_READ; 23511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_FROM_DEVICE: 2353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; 2354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_READ; 2355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->rddata = 1; 2356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_TO_DEVICE: 2358c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; 2359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbtype = SBAL_FLAGS0_TYPE_WRITE; 2360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->wddata = 1; 23611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case DMA_BIDIRECTIONAL: 23631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 2364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EIO; 2365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 23661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 23671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely((scsi_cmnd->device->simple_tags) || 2369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ((atomic_read(&unit->status) & ZFCP_STATUS_UNIT_READONLY) && 2370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (atomic_read(&unit->status) & ZFCP_STATUS_UNIT_SHARED)))) 2371c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = SIMPLE_Q; 2372c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 2373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_attribute = UNTAGGED; 23741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(scsi_cmnd->cmd_len > FCP_CDB_LENGTH)) 2376c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->add_fcp_cdb_length = 2377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (scsi_cmnd->cmd_len - FCP_CDB_LENGTH) >> 2; 23781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2379c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fcp_cmnd_iu->fcp_cdb, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); 238045633fdc9615f9fd2a0ae18e301562298b15abf3Christof Schmitt 2381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 23827ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig fcp_cmnd_iu->add_fcp_cdb_length + sizeof(u32); 23831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig real_bytes = zfcp_qdio_sbals_from_sg(req, sbtype, 2385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_sglist(scsi_cmnd), 2386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(real_bytes < 0)) { 2388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->sbal_number < FSF_MAX_SBALS_PER_REQ) 2389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EIO; 2390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else { 2391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 2392ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Oversize data package, unit 0x%016Lx " 2393ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "on port 0x%016Lx closed\n", 23947ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->fcp_lun, 23957ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)unit->port->wwpn); 23965ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req); 2397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EINVAL; 2398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2399c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 24001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_set_fcp_dl(fcp_cmnd_iu, real_bytes); 24031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2404c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 24071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2411c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_unit_put(unit); 2412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2413c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2414c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 24150406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock(&adapter->req_q_lock); 2416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 24171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2420c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_fcp_ctm - send SCSI task management command 2421c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @unit: pointer to struct zfcp_unit 2422c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 24241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 242563caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmittstruct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) 24261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 242744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2428c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fcp_cmnd_iu *fcp_cmnd_iu; 243063caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt struct zfcp_adapter *adapter = unit->port->adapter; 24311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2432c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!(atomic_read(&unit->status) & 2433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2434c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 24351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 243692cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 243792cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt if (zfcp_fsf_req_sbal_get(adapter)) 2438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 243963caf367e1c92e0667a344d9b687c04e6ef054b5Christof Schmitt req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, 0, 2440c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->pool.fsf_req_scsi); 2441633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 2442633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 2443c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2444633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 24451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2447c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = unit; 2448c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_fcp_command_handler; 2449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.lun_handle = unit->handle; 2450c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = unit->port->handle; 2451c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 2453c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) + 24547ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig sizeof(u32); 2455c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2456c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2457c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE; 2458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; 24591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu = (struct fcp_cmnd_iu *) &req->qtcb->bottom.io.fcp_cmnd; 2461c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->fcp_lun = unit->fcp_lun; 2462c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fcp_cmnd_iu->task_management_flags = tm_flags; 24631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2465c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 24671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2470c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 247192cab0d93a1107ad7f6d827fde62d1aa4db15e86Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 2472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 24741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 2477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->qtcb->header.fsf_status != FSF_GOOD) 2478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 24791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2483c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2485c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 24861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2487c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 24891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 249044cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig struct qdio_buffer_element *sbale; 2491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2493c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2495c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2500c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2503c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25090406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_lock_bh(&adapter->req_q_lock); 2510c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_req_sbal_get(adapter)) 2511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 25121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = zfcp_fsf_req_create(adapter, fsf_cfdc->command, 0, NULL); 2514025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2515c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2519c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 25201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2521c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale = zfcp_qdio_sbale_req(req); 2522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig sbale[0].flags |= direction; 25238a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2526c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 25278a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bytes = zfcp_qdio_sbals_from_sg(req, direction, fsf_cfdc->sg, 2529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_MAX_SBALS_PER_REQ); 2530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 2532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2534c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 25351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2537c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 25390406289ed57955860a4f8d744a14f4c819260ce4Christof Schmitt spin_unlock_bh(&adapter->req_q_lock); 25408a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2542c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig wait_event(req->completion_wq, 2543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status & ZFCP_STATUS_FSFREQ_COMPLETED); 2544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 25451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 25471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2548