zfcp_fsf.c revision 5bfb2c31487eaff3840e02548e6acf89a048765b
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * zfcp device driver 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt * Implementation of FSF commands. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt * Copyright IBM Corporation 2002, 2010 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt#define KMSG_COMPONENT "zfcp" 10ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 11ecf39d42129767c0b4b4a6cf4997c1219c860934Christof Schmitt 120997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl#include <linux/blktrace_api.h> 135a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 149d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt#include <scsi/fc/fc_els.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "zfcp_ext.h" 164318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt#include "zfcp_fc.h" 17dcd20e2316cdc333dfdee09649dbe3642eb30e75Christof Schmitt#include "zfcp_dbf.h" 1834c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt#include "zfcp_qdio.h" 19b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt#include "zfcp_reqlist.h" 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_request_timeout_handler(unsigned long data) 22287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 23287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; 24339f4f4eab80caa6cf0d39fb057ad6ddb84ba91eChristof Schmitt zfcp_qdio_siosl(adapter); 255ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 265ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsrth_1", NULL); 27287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 28287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 29287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, 30287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt unsigned long timeout) 31287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 32287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_fsf_request_timeout_handler; 33287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->adapter; 34287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + timeout; 35287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 36287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 37287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 38287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmittstatic void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) 39287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt{ 40287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt BUG_ON(!fsf_req->erp_action); 41287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.function = zfcp_erp_timeout_handler; 42287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.data = (unsigned long) fsf_req->erp_action; 43287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt fsf_req->timer.expires = jiffies + 30 * HZ; 44287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt add_timer(&fsf_req->timer); 45287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt} 46287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* association between FSF command and FSF QTCB type */ 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic u32 fsf_qtcb_type[] = { 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 64553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmittstatic void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) 65553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 66ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_err(&req->adapter->ccw_device->dev, "FCP device not " 67ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "operational because of an unsupported FC class\n"); 685ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); 69553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 70553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt} 71553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 72c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 73c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_free - free memory used by fsf request 74c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: pointer to struct zfcp_fsf_req 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 76c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligvoid zfcp_fsf_req_free(struct zfcp_fsf_req *req) 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 78c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->pool)) { 79a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 80a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); 81c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig mempool_free(req, req->pool); 82dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens return; 83dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens } 84dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6Heiko Carstens 85a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(req->qtcb)) 86a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb); 87a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig kfree(req); 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 90c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 92ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig unsigned long flags; 93c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 94c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 95c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port; 96800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt int d_id = ntoh24(sr_buf->d_id); 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 98ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_lock_irqsave(&adapter->port_list_lock, flags); 99ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig list_for_each_entry(port, &adapter->port_list, list) 100c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (port->d_id == d_id) { 1015ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_port_reopen(port, 0, "fssrpc1", req); 102ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig break; 103c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 104ecf0c7721b104c0ce9c8ca534c911f6310cf92a8Swen Schillig read_unlock_irqrestore(&adapter->port_list_lock, flags); 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 107edaed859e63aac174fcc3fed81886b91bb124661Swen Schilligstatic void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, 108c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *link_down) 109aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin{ 110c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 111698ec01635819c5ae60090bb4efcbeffc41642fbMartin Peschke 112c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) 113ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin return; 114ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 115ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); 11670932935b61ee3dcc5a419ec4c367feb2ff808e4Christof Schmitt 117a2fa0aede07c9488239dcac1eae58233181c355aChristof Schmitt zfcp_scsi_schedule_rports_block(adapter); 118ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 119c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!link_down) 1202f8f3ed5fc566700cf45d422f4cf1624bd123d93Andreas Herrmann goto out; 121ee69ab7af3cd68423e389272e1276718d4cd8ebcMaxim Shchetynin 122aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin switch (link_down->error_code) { 123aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_LIGHT: 124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 125ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is no light signal from the local " 126ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel cable\n"); 127aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 128aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WRAP_PLUG: 129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 130ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "There is a wrap plug instead of a fibre " 131ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "channel cable\n"); 132aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 133aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP: 134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 135ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent fibre channel node does not " 136ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "support FCP\n"); 137aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 138aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FIRMWARE_UPDATE: 139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 140ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device is suspended because of a " 141ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "firmware update\n"); 142553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt break; 143aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_INVALID_WWPN: 144c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 145ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP device detected a WWPN that is " 146ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "duplicate or not valid\n"); 147aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 148aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_NPIV_SUPPORT: 149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 150ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The fibre channel fabric does not support NPIV\n"); 151aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 152aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FCP_RESOURCES: 153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 154ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter cannot support more NPIV ports\n"); 155aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 156aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: 157c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 158ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The adjacent switch cannot support " 159ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "more NPIV ports\n"); 160aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 161aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: 162c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 163ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter could not log in to the " 164ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel fabric\n"); 165aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 166aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: 167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 168ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The WWPN assignment file on the FCP adapter " 169ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 170aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 171aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: 172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 173ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The mode table on the FCP adapter " 174ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been damaged\n"); 175aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 176aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: 177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 178ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "All NPIV ports on the FCP adapter have " 179ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "been assigned\n"); 180aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 181aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin default: 182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 183ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The link between the FCP adapter and " 184ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "the FC fabric is down\n"); 185aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 186c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 187edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_ERP_FAILED); 188aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin} 189aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_link_down_info *ldi = 194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (struct fsf_link_down_info *) &sr_buf->payload; 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_subtype) { 197c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: 198edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_fsf_link_down_info_eval(req, ldi); 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 200c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FDISC_FAILED: 201edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_fsf_link_down_info_eval(req, ldi); 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 203c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: 204edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_fsf_link_down_info_eval(req, NULL); 205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig }; 206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) 209c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 210c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 211c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf = req->data; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 213c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 2145771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("dism", adapter->dbf, sr_buf); 215a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 216c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2205771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("read", adapter->dbf, sr_buf); 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 222c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (sr_buf->status_type) { 223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_PORT_CLOSED: 224c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_port_closed(req); 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 226c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_INCOMING_ELS: 227c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_incoming_els(req); 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 229c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_SENSE_DATA_AVAIL: 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 231c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: 232ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt dev_warn(&adapter->ccw_device->dev, 233ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The error threshold for checksum statistics " 234ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "has been exceeded\n"); 2355771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_berr(adapter->dbf, req); 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 237c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_DOWN: 238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_link_down(req); 2392d1e547f7523514d1da449bcf08645fe13579378Sven Schuetz zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKDOWN, 0); 240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_LINK_UP: 242c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_info(&adapter->ccw_device->dev, 243ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The local link has been restored\n"); 244c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 245edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_adapter_status(adapter, 246edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig ZFCP_STATUS_COMMON_RUNNING); 247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 248c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 249c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 2505ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fssrh_2", req); 2512d1e547f7523514d1da449bcf08645fe13579378Sven Schuetz zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKUP, 0); 2522d1e547f7523514d1da449bcf08645fe13579378Sven Schuetz 253c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_NOTIFICATION_LOST: 255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) 256a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt zfcp_cfdc_adapter_access_changed(adapter); 257c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) 2589eae07ef6bb5988163d8bb82cd952905db47b721Swen Schillig queue_work(adapter->work_queue, &adapter->scan_work); 259c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 260c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_CFDC_UPDATED: 261a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt zfcp_cfdc_adapter_access_changed(adapter); 262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 263c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: 264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = sr_buf->payload.word[0]; 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 268a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 269c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_inc(&adapter->stat_miss); 2724544683a4b1d4e65ccca8c736bac56a195a5206bSwen Schillig queue_work(adapter->work_queue, &adapter->stat_work); 273c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 275c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) 276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 278c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_FCP_RSP_AVAILABLE: 279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RETRY_POSSIBLE: 281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 282c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_COMMAND_ABORTED: 284c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SQ_NO_RECOM: 286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 287ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter reported a problem " 288ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "that cannot be recovered\n"); 289339f4f4eab80caa6cf0d39fb057ad6ddb84ba91eChristof Schmitt zfcp_qdio_siosl(req->adapter); 2905ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); 291c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 293c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* all non-return stats set FSFREQ_ERROR*/ 294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 302c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 303c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_UNKNOWN_COMMAND: 304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 305ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter does not recognize the command 0x%x\n", 306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command); 3075ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); 308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_qual_eval(req); 312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 313c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) 317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 319c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 320c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3225771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_response(req); 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { 3254c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 326c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 329c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->prefix.prot_status) { 330c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_GOOD: 331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_FSF_STATUS_PRESENTED: 332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_QTCB_VERSION_ERROR: 334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 335ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "QTCB version 0x%x not supported by FCP adapter " 336ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, 337ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt psq->word[0], psq->word[1]); 3385ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); 339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_ERROR_STATE: 341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_SEQ_NUMB_ERROR: 3425ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); 3434c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_UNSUPP_QTCB_TYPE: 346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 347ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The QTCB type is not supported by the FCP adapter\n"); 3485ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); 349c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 350c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_HOST_CONNECTION_INITIALIZING: 351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, 352c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 353c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 354c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_DUPLICATE_REQUEST_ID: 355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 356ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%Lx is an ambiguous request identifier\n", 357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig (unsigned long long)qtcb->bottom.support.req_handle); 3585ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); 359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 360c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_LINK_DOWN: 361edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_fsf_link_down_info_eval(req, &psq->link_down_info); 362452b505c5ada345103bdfdb39dc550df3ffe9eeaChristof Schmitt /* go through reopen to flush pending requests */ 3635ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); 364c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 365c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PROT_REEST_QUEUE: 366c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* All ports should be marked as ready to run again */ 367edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_adapter_status(adapter, 368edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig ZFCP_STATUS_COMMON_RUNNING); 369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_erp_adapter_reopen(adapter, 370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | 3715ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, 3725ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fspse_8", req); 373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 376ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%x is not a valid transfer protocol status\n", 377c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb->prefix.prot_status); 378339f4f4eab80caa6cf0d39fb057ad6ddb84ba91eChristof Schmitt zfcp_qdio_siosl(adapter); 3795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); 380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 381c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 385c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_req_complete - process completion of a FSF request 386c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_req: The FSF request that has been completed. 387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * 388c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * When a request has been completed either from the FCP adapter, 389c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * or it has been dismissed due to a queue shutdown, this function 390c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * is called to process the completion status and trigger further 391c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * events related to the FSF request. 392c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 393bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligstatic void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { 396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_status_read_handler(req); 397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 401c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_protstatus_eval(req); 402c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_fsfstatus_eval(req); 403c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler(req); 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->erp_action) 406287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_erp_notify(req->erp_action, 0); 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 408c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) 409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 411058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig complete(&req->completion); 412c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 414bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 415bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_req_dismiss_all - dismiss all fsf requests 416bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 417bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * 418bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Never ever call this without shutting down the adapter first. 419bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Otherwise the adapter would continue using and corrupting s390 storage. 420bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Included BUG_ON() call to ensure this is done. 421bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * ERP is supposed to be the only user of this function. 422bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 423bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schilligvoid zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) 424bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 425bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *req, *tmp; 426bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig LIST_HEAD(remove_queue); 427bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 428bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); 429b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_move(adapter->req_list, &remove_queue); 430bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 431bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_for_each_entry_safe(req, tmp, &remove_queue, list) { 432bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig list_del(&req->list); 433bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; 434bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(req); 435bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 436bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 437bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 438c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) 439c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 4409d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config; 441c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 4439d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fc_els_flogi *nsp, *plogi; 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4459d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt /* adjust pointers for missing command code */ 4469d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param 4479d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt - sizeof(u32)); 4489d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload 4499d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt - sizeof(u32)); 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 451c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 453c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 4549d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt fc_host_port_name(shost) = nsp->fl_wwpn; 4559d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt fc_host_node_name(shost) = nsp->fl_wwnn; 456800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt fc_host_port_id(shost) = ntoh24(bottom->s_id); 457c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = bottom->fc_link_speed; 458c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; 459c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 460c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = bottom->adapter_type; 461faf4cd854203b26527d81e7e13d66e78774dad44Christof Schmitt adapter->timer_ticks = bottom->timer_interval & ZFCP_FSF_TIMER_INT_MASK; 4628d88cf3f3b9af4713642caeb221b6d6a42019001Christof Schmitt adapter->stat_read_buf_num = max(bottom->status_read_buf_num, 4638d88cf3f3b9af4713642caeb221b6d6a42019001Christof Schmitt (u16)FSF_STATUS_READS_RECOM); 464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 465c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fc_host_permanent_port_name(shost) == -1) 466c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 468c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (bottom->fc_topology) { 469c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_P2P: 470800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt adapter->peer_d_id = ntoh24(bottom->peer_d_id); 4719d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwpn = plogi->fl_wwpn; 4729d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt adapter->peer_wwnn = plogi->fl_wwnn; 473c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_PTP; 474c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_FABRIC: 476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 477c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 478c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_TOPO_AL: 479c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 480dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 481c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 483ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Unknown or unsupported arbitrated loop " 484ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "fibre channel topology detected\n"); 4855ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); 486c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 488c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 489ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck zfcp_scsi_set_prot(adapter); 490ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) 495553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt{ 496553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt struct zfcp_adapter *adapter = req->adapter; 497c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; 499c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 500553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt 501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 502c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 504c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_lic_version = bottom->lic_version; 505c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->adapter_features = bottom->adapter_features; 506c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->connection_features = bottom->connection_features; 507c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwpn = 0; 508c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_wwnn = 0; 509c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->peer_d_id = 0; 5108a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 511c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 512c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 513c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (zfcp_fsf_exchange_config_evaluate(req)) 514c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 516c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { 517c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 518ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "FCP adapter maximum QTCB size (%d bytes) " 519ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "is too small\n", 520ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt bottom->max_qtcb_size); 5215ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); 522c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 523c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 524c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, 525c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &adapter->status); 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 527c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 528c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_node_name(shost) = 0; 529c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_name(shost) = 0; 530c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_id(shost) = 0; 531c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 532c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 533c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hydra_version = 0; 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 535edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_fsf_link_down_info_eval(req, 536c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 538c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 5395ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); 540c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 541c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 543c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { 544c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->hardware_version = bottom->hardware_version; 545c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(fc_host_serial_number(shost), bottom->serial_number, 546c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 547c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig EBCASC(fc_host_serial_number(shost), 548c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig min(FC_SERIAL_NUMBER_SIZE, 17)); 549c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 551c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { 552c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 553ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports newer " 554ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5555ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); 556c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 557c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 558c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { 559c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&adapter->ccw_device->dev, 560ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "The FCP adapter only supports older " 561ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "control block versions\n"); 5625ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); 563c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 564c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 566c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) 567c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 568c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 569c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; 570c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct Scsi_Host *shost = adapter->scsi_host; 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 572c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->data) 573c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memcpy(req->data, bottom, sizeof(*bottom)); 5749eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin 5750282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { 576c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = bottom->wwpn; 5770282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 5780282985da5923fa6365adcc1a1586ae0c13c1617Christof Schmitt } else 579c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_permanent_port_name(shost) = fc_host_port_name(shost); 580c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_maxframe_size(shost) = bottom->maximum_frame_size; 581c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig fc_host_supported_speeds(shost) = bottom->supported_speed; 5822d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types, 5832d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt FC_FC4_LIST_SIZE); 5842d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types, 5852d8e62bbf7e83facd5701c100f62fbf0df4ee486Christof Schmitt FC_FC4_LIST_SIZE); 586c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 588c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) 589c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 590c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb *qtcb = req->qtcb; 591c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 592c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 593c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 594c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 595c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (qtcb->header.fsf_status) { 596c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GOOD: 597c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 598c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 599c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: 600c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_exchange_port_evaluate(req); 601edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_fsf_link_down_info_eval(req, 602c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig &qtcb->header.fsf_status_qual.link_down_info); 603aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin break; 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 605c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 606d26ab06ede83287f99067fee3034c5455a75faf9Swen Schillig 607a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) 608c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 609c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 610a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 611a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 612a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = mempool_alloc(pool, GFP_ATOMIC); 613a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 614a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req = kmalloc(sizeof(*req), GFP_ATOMIC); 615a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 616a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req)) 617c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 618a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 619c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(req, 0, sizeof(*req)); 62088f2a977870af655296a682fe2a58c822cd25bb2Christof Schmitt req->pool = pool; 621c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 622c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 623c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 624a4623c467ff76f9258555d44d68371e10c5406c2Swen Schilligstatic struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) 625c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 626a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct fsf_qtcb *qtcb; 627c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 628c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (likely(pool)) 629c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig qtcb = mempool_alloc(pool, GFP_ATOMIC); 630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig else 631a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); 632a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!qtcb)) 634c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 635c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 636c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(qtcb, 0, sizeof(*qtcb)); 637a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return qtcb; 638c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 639c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 640564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligstatic struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, 6411674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt u32 fsf_cmd, u32 sbtype, 6421674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt mempool_t *pool) 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 644564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 645a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 647c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(!req)) 6481e9b16430ff4fd09408a74342d6b8338228e2f70Christof Schmitt return ERR_PTR(-ENOMEM); 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 650c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (adapter->req_no == 0) 651c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->req_no++; 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 653c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig INIT_LIST_HEAD(&req->list); 654c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig init_timer(&req->timer); 655058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig init_completion(&req->completion); 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 657c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->adapter = adapter; 658c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->fsf_command = fsf_cmd; 65952bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt req->req_id = adapter->req_no; 660c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 661a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { 662a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (likely(pool)) 663a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); 664a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig else 665a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig req->qtcb = zfcp_qtcb_alloc(NULL); 666a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 667a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig if (unlikely(!req->qtcb)) { 668a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig zfcp_fsf_req_free(req); 669a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig return ERR_PTR(-ENOMEM); 670a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig } 671a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig 6725bdecd2248d4af6f3b311b4d8ca7f3f5f83a7191Christof Schmitt req->seq_no = adapter->fsf_req_seq_no; 673564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; 674c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.req_id = req->req_id; 675c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.ulp_info = 26; 676c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; 677c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; 678c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.req_handle = req->req_id; 679c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.fsf_command = req->fsf_command; 680c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 681c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 6821674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_req_init(adapter->qdio, &req->qdio_req, req->req_id, sbtype, 6831674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req->qtcb, sizeof(struct fsf_qtcb)); 6841674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 685c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 688c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic int zfcp_fsf_req_send(struct zfcp_fsf_req *req) 689c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 691564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 692b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt int with_qtcb = (req->qtcb != NULL); 693e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt int req_id = req->req_id; 694c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 695b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_add(adapter->req_list, req); 696c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 697706eca49a044a1ea89352dcc4b96ffc1631b2cb5Swen Schillig req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q_free); 698c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->issued = get_clock(); 69934c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt if (zfcp_qdio_send(qdio, &req->qdio_req)) { 700c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig del_timer(&req->timer); 7013765138ae946e6e29b22bf15a9647c600c232639Christof Schmitt /* lookup request again, list might have changed */ 702b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt zfcp_reqlist_find_rm(adapter->req_list, req_id); 7035ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); 704c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EIO; 705c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 706c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 707c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* Don't increase for unsolicited status */ 708135ea137e3c2872448c12d3a8890389fa64990c6Martin Petermann if (with_qtcb) 709c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig adapter->fsf_req_seq_no++; 71052bfb558d2803590f86360ec3af1750897a9c010Christof Schmitt adapter->req_no++; 711c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 713c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 715c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_status_read - send status read request 717c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @req_flags: request flags 719c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, ERROR otherwise 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 721564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_status_read(struct zfcp_qdio *qdio) 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 723564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 724c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 725c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_status_read_buffer *sr_buf; 726c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 72844a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 7296b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 730c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 7321674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 0, 733a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.status_read_req); 734025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 735c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 736c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 739a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); 740c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!sr_buf) { 741c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -ENOMEM; 742c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_buf; 743c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 744c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig memset(sr_buf, 0, sizeof(*sr_buf)); 745c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = sr_buf; 7461674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 7471674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, &req->qdio_req, sr_buf, sizeof(*sr_buf)); 7481674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 749059c97d0434834d291eff94669ca2dd3eaac9d28Andreas Herrmann 750c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 751c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) 752c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_req_send; 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 754c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 755c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 756c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_req_send: 757a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig mempool_free(sr_buf, adapter->pool.status_read_data); 758c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_buf: 759c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 7605771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL); 761c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 76244a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 763c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 764c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 765c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 766c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) 767c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 768b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct scsi_device *sdev = req->data; 769b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); 770c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; 771c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 772c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return; 774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 777c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 778b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, 7795ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig "fsafch1", req); 780c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 784c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (fsq->word[0] == fsq->word[1]) { 785b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fsafch2", 786b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req); 787c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_FCP_COMMAND_DOES_NOT_EXIST: 791c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 794edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_port_status(zfcp_sdev->port, 795edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig ZFCP_STATUS_COMMON_ACCESS_BOXED); 796edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_port_reopen(zfcp_sdev->port, 797edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, "fsafch3", 798edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig req); 7994c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_BOXED: 802edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED); 803edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, 804edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig "fsafch4", req); 8054c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 808c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsq->word[0]) { 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 810b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_fc_test_link(zfcp_sdev->port); 811dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 813c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 824b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt * zfcp_fsf_abort_fcp_cmnd - abort running SCSI command 825b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt * @scmnd: The SCSI command to abort 826c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: pointer to struct zfcp_fsf_req 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 829b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmittstruct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *scmnd) 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 832b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct scsi_device *sdev = scmnd->device; 833b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); 834b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio; 835b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt unsigned long old_req_id = (unsigned long) scmnd->host_scribble; 8368a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 83744a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 8386b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 839c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 840564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, 8411674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 842564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_abort); 843633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 844633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 845c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 846633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 8472abbe866c8eb0296e3f5343bcf73e5371522a738Andreas Herrmann 848b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt if (unlikely(!(atomic_read(&zfcp_sdev->status) & 849c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out_error_free; 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8521674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 854b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->data = zfcp_sdev; 855c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_abort_fcp_command_handler; 856b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; 857b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->qtcb->header.port_handle = zfcp_sdev->port->handle; 858c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_handle = (u64) old_req_id; 859c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 860c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 862c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 863c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 864c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout_error_free: 865c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 866c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 867c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 86844a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 869c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 872c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 874c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 8757c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_fsf_ct_els *ct = req->data; 876c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8787c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->status = -EINVAL; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 880c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 8855771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_ct_response(req); 8867c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->status = 0; 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 889c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 895c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 9024c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 904c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 9055ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); 906dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 907c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_GENERIC_COMMAND_REJECTED: 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SBAL_MISMATCH: 912c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 9177c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt if (ct->handler) 9187c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt ct->handler(ct->handler_data); 919c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9211674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmittstatic void zfcp_fsf_setup_ct_els_unchained(struct zfcp_qdio *qdio, 9221674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt struct zfcp_qdio_req *q_req, 923426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_req, 924426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt struct scatterlist *sg_resp) 925426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt{ 9261674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_req), sg_req->length); 9271674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_resp), sg_resp->length); 9281674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, q_req); 929426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt} 930426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 93139eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmittstatic int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, 93239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt struct scatterlist *sg_req, 93301b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig struct scatterlist *sg_resp) 934c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 93542428f747a8a0db9c6de03e105932316defad65dSwen Schillig struct zfcp_adapter *adapter = req->adapter; 93642428f747a8a0db9c6de03e105932316defad65dSwen Schillig u32 feat = adapter->adapter_features; 937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int bytes; 938c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 93939eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { 9401674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt if (!zfcp_qdio_sg_one_sbale(sg_req) || 9411674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt !zfcp_qdio_sg_one_sbale(sg_resp)) 94239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return -EOPNOTSUPP; 94339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 9441674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, 9451674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sg_req, sg_resp); 946426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt return 0; 947426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt } 948426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt 949426f6059b0eb66cec139f4b9066168ab72b85774Christof Schmitt /* use single, unchained SBAL if it can hold the request */ 95030b6777b8931afc5f3aa42858fe917938b570f79Swen Schillig if (zfcp_qdio_sg_one_sbale(sg_req) && zfcp_qdio_sg_one_sbale(sg_resp)) { 9511674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, 9521674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sg_req, sg_resp); 95339eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt return 0; 95439eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt } 95539eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt 95601b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, sg_req); 957c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 9589072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 959ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); 960c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.req_buf_length = bytes; 9611674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_skip_to_last_sbale(&req->qdio_req); 962c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 96334c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, 96401b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig sg_resp); 965b1a58985853574346f1518531bdd82069501b317Christof Schmitt req->qtcb->bottom.support.resp_buf_length = bytes; 966c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes <= 0) 9679072df4dc6e8fd569d583815edb0198af4b688b8Christof Schmitt return -EIO; 968ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); 96998fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt 970b1a58985853574346f1518531bdd82069501b317Christof Schmitt return 0; 971b1a58985853574346f1518531bdd82069501b317Christof Schmitt} 972b1a58985853574346f1518531bdd82069501b317Christof Schmitt 973b1a58985853574346f1518531bdd82069501b317Christof Schmittstatic int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, 974b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_req, 975b1a58985853574346f1518531bdd82069501b317Christof Schmitt struct scatterlist *sg_resp, 97601b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig unsigned int timeout) 977b1a58985853574346f1518531bdd82069501b317Christof Schmitt{ 978b1a58985853574346f1518531bdd82069501b317Christof Schmitt int ret; 979b1a58985853574346f1518531bdd82069501b317Christof Schmitt 98001b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp); 981b1a58985853574346f1518531bdd82069501b317Christof Schmitt if (ret) 982b1a58985853574346f1518531bdd82069501b317Christof Schmitt return ret; 983b1a58985853574346f1518531bdd82069501b317Christof Schmitt 98498fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt /* common settings for ct/gs and els requests */ 98551375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig if (timeout > 255) 98651375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig timeout = 255; /* max value accepted by hardware */ 98798fc4d5c8cd9bd1a412cca922feecb54c1c22d8eChristof Schmitt req->qtcb->bottom.support.service_class = FSF_CLASS_3; 98851375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig req->qtcb->bottom.support.timeout = timeout; 98951375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig zfcp_fsf_start_timer(req, (timeout + 10) * HZ); 990c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 991c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return 0; 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 995c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) 996c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @ct: pointer to struct zfcp_send_ct with data for request 997c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9997c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmittint zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, 100051375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig struct zfcp_fsf_ct_els *ct, mempool_t *pool, 100151375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig unsigned int timeout) 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1003564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 1004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1005c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 100744a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 10086b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1009c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10111674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, 10121674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE_READ, pool); 101309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1014025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1015c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1016c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10173f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt } 10183f0ca62add34010241db682e63bb68ba765bf4a9Christof Schmitt 101909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 102001b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, timeout); 1021553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (ret) 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto failed_send; 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1024c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_ct_handler; 10255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 1026c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = ct; 1027c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 10287c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt zfcp_dbf_san_ct_request(req, wka_port->d_id); 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1030c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1031c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1034c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1037c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1038c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 103944a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 1040c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1043c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10457c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_fsf_ct_els *send_els = req->data; 1046c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = send_els->port; 1047c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1049c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = -EINVAL; 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1051c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto skip_fsfstatus; 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 10565771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_response(req); 1057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig send_els->status = 0; 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SERVICE_CLASS_NOT_SUPPORTED: 1060c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]){ 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_RETRY_IF_POSSIBLE: 1067c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ELS_COMMAND_REJECTED: 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PAYLOAD_SIZE_MISMATCH: 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_REQUEST_SIZE_TOO_LARGE: 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_RESPONSE_SIZE_TOO_LARGE: 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1077a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt if (port) { 1078a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt zfcp_cfdc_port_denied(port, &header->fsf_status_qual); 1079a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1080a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt } 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1082c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SBAL_MISMATCH: 1083c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* should never occure, avoided in zfcp_fsf_send_els */ 1084c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1086c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsskip_fsfstatus: 1090aa551daf5cc6fb6c6e09bb993737f9cd46dc7145Heiko Carstens if (send_els->handler) 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds send_els->handler(send_els->handler_data); 1092c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1094c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1095c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_send_els - initiate an ELS command (FC-FS) 1096c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @els: pointer to struct zfcp_send_els with data for the command 1097c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig */ 10987c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmittint zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, 109951375ee8374dd7fa574e1a14ebac406c6d28543bSwen Schillig struct zfcp_fsf_ct_els *els, unsigned int timeout) 1100c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1101c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 11027c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt struct zfcp_qdio *qdio = adapter->qdio; 1103c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int ret = -EIO; 1104c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 110544a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 11066b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1107c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 110809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 11091674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, 11101674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE_READ, NULL); 111109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1112025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1113c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = PTR_ERR(req); 1114c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1115c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1116c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 111709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 111801b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig 111901b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2); 112001b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig 112101b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, timeout); 112244cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig 1123c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1124c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1125c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11267c7dc196814b9e1d5cc254dc579a5fa78ae524f7Christof Schmitt hton24(req->qtcb->bottom.support.d_id, d_id); 1127c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_send_els_handler; 1128c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = els; 1129c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11305771710bd5edfafcb8656f49b93690a6fae5a4d2Swen Schillig zfcp_dbf_san_els_request(req); 1131c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1132c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ret = zfcp_fsf_req_send(req); 1133c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (ret) 1134c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_send; 1135c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1136c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1137c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1138c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_send: 1139c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1140c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 114144a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 1142c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ret; 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1145c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1147c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1148564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1149c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1150c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 115144a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 11526b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1153c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 115409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1155564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 11561674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1157564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 115809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1159025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1161c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 116409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 11651674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1167c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 1168aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_CFDC | 1169aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_LUN_SHARING | 11709eb69aff79264b5f35e41922df20a488c67e9ee2Maxim Shchetynin FSF_FEATURE_NOTIFICATION_LOST | 1171aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin FSF_FEATURE_UPDATE_ALERT; 1172c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1173c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 1174e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1176287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1177c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1179c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1180e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1182c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 118344a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 118452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 118552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1187564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, 1188c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_config *data) 118952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 1190c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 119344a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 11946b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1195ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1196c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 11971674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, 11981674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, NULL); 119909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1200025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1201c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1202ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 120352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 120452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 12051674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 1206c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_config_data_handler; 120752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1208c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.config.feature_selection = 120952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_CFDC | 121052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_LUN_SHARING | 121152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_NOTIFICATION_LOST | 121252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig FSF_FEATURE_UPDATE_ALERT; 121352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 121452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1215c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 121652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1217c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1218c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 121944a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 1220553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1221058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 122252ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1223c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1224ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 122552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1226ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 122744a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * zfcp_fsf_exchange_port_data - request information about local port 1233aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin * @erp_action: ERP action for the adapter for which port data is requested 1234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1238564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1242564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 124352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 124544a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 12466b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1247c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 124809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1249564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 12501674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1251564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 125209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1253025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1254c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1255c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1256aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin } 1257aef4a983090fa590481a86d9690dc3fa6bb121faMaxim Shchetynin 125809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 12591674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1261c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1262c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1263e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 126452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1265287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1266c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1268c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1269e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 127052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig } 1271c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 127244a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 127352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return retval; 127452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig} 127552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 127652ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig/** 127752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig * zfcp_fsf_exchange_port_data_sync - request information about local port 1278564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig * @qdio: pointer to struct zfcp_qdio 1279c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @data: pointer to struct fsf_qtcb_bottom_port 1280c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 128152ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig */ 1282564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligint zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, 1283c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_port *data) 128452ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig{ 1285c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 1286c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 128752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1288564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) 128952ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig return -EOPNOTSUPP; 129052ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 129144a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 12926b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1293ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 1294c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 12951674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, 12961674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, NULL); 129709a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1298025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1299c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1300ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt goto out_unlock; 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 130352ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig if (data) 1304c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = data; 130552ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 13061674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 130752ef11a7170e1b8a0d5f9a42dbb43c38c335c32eSwen Schillig 1308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_exchange_port_data_handler; 1309c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 1310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 131144a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 1312ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1313553448f6c4838a1e4bed2bc9301c748278d7d9ceChristof Schmitt if (!retval) 1314058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 1315058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig 1316c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 1319ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt 1320ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmittout_unlock: 132144a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 1322ada81b748b768eb5b75567fd1db5e87ba5c98bf0Christof Schmitt return retval; 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 13299d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt struct fc_els_flogi *plogi; 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1332a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann goto out; 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_ALREADY_OPEN: 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1338a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt zfcp_cfdc_port_denied(port, &header->fsf_status_qual); 1339a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 1342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&req->adapter->ccw_device->dev, 1343ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "Not enough FCP adapter resources to open " 13447ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig "remote port 0x%016Lx\n", 13457ba58c9cc16d296290fe645acb11db2b01276544Swen Schillig (unsigned long long)port->wwpn); 1346edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_port_status(port, 1347edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig ZFCP_STATUS_COMMON_ERP_FAILED); 1348c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_NO_RETRY_POSSIBLE: 1355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->handle = header->port_handle; 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1363d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1364d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann ZFCP_STATUS_COMMON_ACCESS_BOXED, 1365d736a27b7efbc835c7b83db5c1bbd41edbadf32eAndreas Herrmann &port->status); 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* check whether D_ID has changed during open */ 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This check is not airtight, as the FCP channel does 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not monitor closures of target port connections caused on 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the remote side. Thus, they might miss out on invalidating 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * locally cached WWPNs (and other N_Port parameters) of gone 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target ports. So, our heroic attempt to make things safe 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * could be undermined by 'open port' response data tagged with 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * obsolete WWPNs. Another reason to monitor potential 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * connection closures ourself at least (by interpreting 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * incoming ELS' and unsolicited status). It just crosses my 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mind that one should be able to cross-check by means of 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * another GID_PN straight after a port has been opened. 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Alternately, an ADISC/PDISC ELS should suffice, as well. 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13819d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; 138239eb7e9aca2a582330ddb6f1167272268e6b3965Christof Schmitt if (req->qtcb->bottom.support.els1_length >= 13839d05ce2c0a6704ff84df02cbb3baef94fcac4f5dChristof Schmitt FSF_PLOGI_MIN_LEN) 1384c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fc_plogi_evaluate(port, plogi); 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_UNKNOWN_OP_SUBTYPE: 1387c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1390a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann 1391a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermannout: 1392615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&port->dev); 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1395c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1396c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_open_port - create and send open port request 1397c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1398c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1400c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1402564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1403a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann struct zfcp_port *port = erp_action->port; 1404564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_fsf_req *req; 1405c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1406c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 140744a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 14086b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1409c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1410c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1411564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 14121674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1413564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 141409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1415025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1416c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1418c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 142009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 14211674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1423c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_open_port_handler; 1424800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt hton24(req->qtcb->bottom.support.d_id, port->d_id); 1425a17c5855643afa7838f542cbd0a1ed9a73968cefMartin Petermann req->data = port; 1426c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1427e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1428615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt get_device(&port->dev); 1429c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1430287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1431c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1433c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1434e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 1435615f59e0daaf56e43dcaaf3ea228967d9bc21584Christof Schmitt put_device(&port->dev); 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1437c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 143844a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1442c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1444c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1446c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 144744cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1449c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 14515ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); 1452c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 1457edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_clear_port_status(port, ZFCP_STATUS_COMMON_OPEN); 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1462c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1463c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_port - create and send close port request 1464c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1465c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1467c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1469564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1470c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1471c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1472c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 147344a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 14746b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 1475c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1476c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1477564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 14781674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1479564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 148009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1481025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1482c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1484c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 148609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 14871674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1489c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_port_handler; 1490c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1491c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1492c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1493e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1494c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1495287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1496c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1498c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1499e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1501c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 150244a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15065ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) 15075ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1508bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 15095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 15105ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { 1512bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 15135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15145ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15155ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig switch (header->fsf_status) { 15175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: 15185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig dev_warn(&req->adapter->ccw_device->dev, 15195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig "Opening WKA port 0x%x failed\n", wka_port->d_id); 1520dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 15215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 15225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 1523dceab655d9f7d99881c2033c8ff4e1c7b444e104Christof Schmitt /* fall through */ 15245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_ACCESS_DENIED: 1525bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 15265ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig break; 15275ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig case FSF_GOOD: 15285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wka_port->handle = header->port_handle; 152927f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig /* fall through */ 153027f492ccec94b6acd8440c83bfe0515ce4db0af0Swen Schillig case FSF_PORT_ALREADY_OPEN: 1531bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; 15325ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15335ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 15345ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 15355ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 15365ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15375ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 15385ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_open_wka_port - create and send open wka-port request 1539bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: pointer to struct zfcp_fc_wka_port 15405ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 15415ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1542bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) 15435ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1544564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 15455ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 15465ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 15475ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 154844a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 15496b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 15505ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15515ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1552564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, 15531674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1554564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 155509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 15565ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 15575ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 15585ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 15595ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15605ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 156109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 15621674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 15635ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15645ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_open_wka_port_handler; 1565800c0cad962dcf630cabf3efdc5983619e73d4c9Christof Schmitt hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); 15665ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 15675ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15685ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 15695ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 15705ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 15715ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 15725ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 157344a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 15745ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 15755ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 15765ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15775ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligstatic void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) 15785ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1579bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt struct zfcp_fc_wka_port *wka_port = req->data; 15805ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15815ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { 15825ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 15835ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); 15845ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 15855ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1586bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; 15875ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig wake_up(&wka_port->completion_wq); 15885ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 15895ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 15905ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig/** 15915ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * zfcp_fsf_close_wka_port - create and send close wka port request 1592bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmitt * @wka_port: WKA port to open 15935ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig * Returns: 0 on success, error otherwise 15945ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig */ 1595bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078Christof Schmittint zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) 15965ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig{ 1597564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = wka_port->adapter->qdio; 15985ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig struct zfcp_fsf_req *req; 15995ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig int retval = -EIO; 16005ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 160144a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 16026b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 16035ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16045ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1605564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, 16061674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1607564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 160809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 16095ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (unlikely(IS_ERR(req))) { 16105ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = PTR_ERR(req); 16115ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig goto out; 16125ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig } 16135ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 161409a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 16151674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 16165ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16175ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->handler = zfcp_fsf_close_wka_port_handler; 16185ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->data = wka_port; 16195ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig req->qtcb->header.port_handle = wka_port->handle; 16205ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 16215ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 16225ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig retval = zfcp_fsf_req_send(req); 16235ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig if (retval) 16245ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig zfcp_fsf_req_free(req); 16255ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schilligout: 162644a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 16275ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig return retval; 16285ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig} 16295ab944f97e09a3d52951fe903eed9a7b88d810b2Swen Schillig 1630c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1632c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_port *port = req->data; 1633c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1634b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct scsi_device *sdev; 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1636c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1637a5b11dda12ed7e3a79180b10ad6209a40a02989fChristof Schmitt return; 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 16415ffd51a5e495a2a002efd523aef0001912b080bdSwen Schillig zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); 1642c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1645a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt zfcp_cfdc_port_denied(port, &header->fsf_status_qual); 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 16485c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt /* can't use generic zfcp_erp_modify_port_status because 16495c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ 16505c815d1501a9ce84578cb3ec64c9d31ef91e3de2Christof Schmitt atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1651b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt shost_for_each_device(sdev, port->adapter->scsi_host) 1652b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt if (sdev_to_zfcp(sdev)->port == port) 1653b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1654b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt &sdev_to_zfcp(sdev)->status); 1655edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_ACCESS_BOXED); 1656edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, 1657edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig "fscpph2", req); 16584c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1663c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1665c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* can't use generic zfcp_erp_modify_port_status because 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ZFCP_STATUS_COMMON_OPEN must not be reset for the port 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); 1674b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt shost_for_each_device(sdev, port->adapter->scsi_host) 1675b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt if (sdev_to_zfcp(sdev)->port == port) 1676b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, 1677b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt &sdev_to_zfcp(sdev)->status); 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1682c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1683c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_close_physical_port - close physical port 1684c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1685c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1687c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligint zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1689564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1690c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1691c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1692c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 169344a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 16946b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1697564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, 16981674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1699564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 170009a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1701025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1702c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1703c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1704c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 170609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 17071674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1709c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = erp_action->port; 1710c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1711c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1712c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_close_physical_port_handler; 1713e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1714c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1715287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1716c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1718c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1719e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1721c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 172244a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1726b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmittstatic void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req) 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1728c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = req->adapter; 1729b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct scsi_device *sdev = req->data; 1730b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); 1731c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1732c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1734c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 173544cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | 1738b64ddf96456cde17be22bf74cafed381a29d58baHeiko Carstens ZFCP_STATUS_COMMON_ACCESS_BOXED | 1739b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt ZFCP_STATUS_LUN_SHARED | 1740b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt ZFCP_STATUS_LUN_READONLY, 1741b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt &zfcp_sdev->status); 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status) { 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1746b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_erp_adapter_reopen(adapter, 0, "fsouh_1", req); 1747c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_ALREADY_OPEN: 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ACCESS_DENIED: 1751a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual); 1752a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 1755edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_port_status(zfcp_sdev->port, 1756edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig ZFCP_STATUS_COMMON_ACCESS_BOXED); 1757edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_port_reopen(zfcp_sdev->port, 1758edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, "fsouh_2", 1759edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig req); 17604c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_SHARING_VIOLATION: 1763a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt zfcp_cfdc_lun_shrng_vltn(sdev, &header->fsf_status_qual); 1764c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: 1767c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_warn(&adapter->ccw_device->dev, 1768ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "No handle is available for LUN " 1769ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx on port 0x%016Lx\n", 1770b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt (unsigned long long)zfcp_scsi_dev_lun(sdev), 1771b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt (unsigned long long)zfcp_sdev->port->wwpn); 1772edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED); 1773c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 1774c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_INVALID_COMMAND_OPTION: 1775c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (header->fsf_status_qual.word[0]) { 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1780b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_fc_test_link(zfcp_sdev->port); 1781c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1783c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 1789b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_sdev->lun_handle = header->lun_handle; 1790b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); 1791a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt zfcp_cfdc_open_lun_eval(sdev, bottom); 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 17931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1796c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 1797b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt * zfcp_fsf_open_lun - open LUN 1798c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @erp_action: pointer to struct zfcp_erp_action 1799c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1801b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmittint zfcp_fsf_open_lun(struct zfcp_erp_action *erp_action) 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1803c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_adapter *adapter = erp_action->adapter; 1804564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 1805c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1806c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 1807c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 180844a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 18096b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1812564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, 18131674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1814a4623c467ff76f9258555d44d68371e10c5406c2Swen Schillig adapter->pool.erp_req); 181509a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1816025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1817c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1818c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1819c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1820c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 182109a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 18221674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1824c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1825b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->qtcb->bottom.support.fcp_lun = zfcp_scsi_dev_lun(erp_action->sdev); 1826b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->handler = zfcp_fsf_open_lun_handler; 1827b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->data = erp_action->sdev; 1828c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1829e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1830c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1831c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) 1832c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; 1833c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1834287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1835c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) { 1837c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1838e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1840c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 184144a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1845b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmittstatic void zfcp_fsf_close_lun_handler(struct zfcp_fsf_req *req) 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1847b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct scsi_device *sdev = req->data; 1848b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1850c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 185144cc76f2d154aa24340354b4711a0fe7f8f08adcSwen Schillig return; 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1853c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status) { 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_HANDLE_NOT_VALID: 1855b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1", 1856b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req); 1857c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_LUN_HANDLE_NOT_VALID: 1860b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fscuh_2", req); 1861c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_PORT_BOXED: 1864edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_port_status(zfcp_sdev->port, 1865edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig ZFCP_STATUS_COMMON_ACCESS_BOXED); 1866edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_port_reopen(zfcp_sdev->port, 1867edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, "fscuh_3", 1868edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig req); 18694c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_ADAPTER_STATUS_AVAILABLE: 1872c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (req->qtcb->header.fsf_status_qual.word[0]) { 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: 1874b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_fc_test_link(zfcp_sdev->port); 1875c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig /* fall through */ 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: 1877c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FSF_GOOD: 1882b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1888b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt * zfcp_fsf_close_LUN - close LUN 1889b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt * @erp_action: pointer to erp_action triggering the "close LUN" 1890c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: 0 on success, error otherwise 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1892b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmittint zfcp_fsf_close_lun(struct zfcp_erp_action *erp_action) 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1894564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = erp_action->adapter->qdio; 1895b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(erp_action->sdev); 1896c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 1897c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int retval = -EIO; 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 189944a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 19006b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 190209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1903564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, 19041674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_READ, 1905564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.erp_req); 190609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 1907025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 1908c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 1909c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 1910c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 191209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 19131674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1915c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->header.port_handle = erp_action->port->handle; 1916b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; 1917b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->handler = zfcp_fsf_close_lun_handler; 1918b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->data = erp_action->sdev; 1919c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->erp_action = erp_action; 1920e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = req->req_id; 1921fdf234527a070f6fc89f3ec5ee4ae1b263e59939Christof Schmitt 1922287ac01acf22ab6aaaf9f5a4919ce2449c8b391cChristof Schmitt zfcp_fsf_start_erp_timer(req); 1923c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 1924c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (retval) { 1925c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 1926e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934Christof Schmitt erp_action->fsf_req_id = 0; 1927c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 1928c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 192944a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 1930c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1933c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmittstatic void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) 1934c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 1935c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt lat_rec->sum += lat; 1936c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->min = min(lat_rec->min, lat); 1937c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig lat_rec->max = max(lat_rec->max, lat); 1938c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt} 1939c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 1940d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmittstatic void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) 1941c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt{ 1942d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct fsf_qual_latency_info *lat_in; 1943d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct latency_cont *lat = NULL; 1944b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scsi->device); 1945d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt struct zfcp_blk_drv_data blktrc; 1946d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt int ticks = req->adapter->timer_ticks; 1947c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 1948d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; 1949c9615858a81d2424c78b10a2f689ba24b156937cChristof Schmitt 1950d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags = 0; 1951d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; 1952d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (req->status & ZFCP_STATUS_FSFREQ_ERROR) 1953d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_REQ_ERROR; 1954706eca49a044a1ea89352dcc4b96ffc1631b2cb5Swen Schillig blktrc.inb_usage = 0; 195534c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt blktrc.outb_usage = req->qdio_req.qdio_outb_usage; 1956d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 19575bbf297cc652713a0a6511004b8d4c1cc21a3b02Christof Schmitt if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA && 19585bbf297cc652713a0a6511004b8d4c1cc21a3b02Christof Schmitt !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 1959d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.flags |= ZFCP_BLK_LAT_VALID; 1960d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.channel_lat = lat_in->channel_lat * ticks; 1961d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blktrc.fabric_lat = lat_in->fabric_lat * ticks; 1962d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt 1963d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt switch (req->qtcb->bottom.io.data_direction) { 1964ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case FSF_DATADIR_DIF_READ_STRIP: 1965ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case FSF_DATADIR_DIF_READ_CONVERT: 1966d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_READ: 1967b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt lat = &zfcp_sdev->latencies.read; 1968d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 1969ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case FSF_DATADIR_DIF_WRITE_INSERT: 1970ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case FSF_DATADIR_DIF_WRITE_CONVERT: 1971d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_WRITE: 1972b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt lat = &zfcp_sdev->latencies.write; 1973d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 1974d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt case FSF_DATADIR_CMND: 1975b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt lat = &zfcp_sdev->latencies.cmd; 1976d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt break; 1977d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1979d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt if (lat) { 1980b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt spin_lock(&zfcp_sdev->latencies.lock); 1981d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); 1982d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); 1983d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt lat->counter++; 1984b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt spin_unlock(&zfcp_sdev->latencies.lock); 1985d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt } 19860997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl } 19870997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 1988d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, 1989d9742b42b5c76e2a3a39de0d187fac4f6852134eChristof Schmitt sizeof(blktrc)); 19900997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl} 19910997f1c5fec0b540784611036d458a84a1f7029aStefan Raspl 1992c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmittstatic void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req) 1993c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 1994b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct scsi_cmnd *scmnd = req->data; 1995b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct scsi_device *sdev = scmnd->device; 1996b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); 1997c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_header *header = &req->qtcb->header; 1998c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 1999c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2000c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt return; 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2002c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (header->fsf_status) { 2003c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_HANDLE_MISMATCH: 2004c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_HANDLE_NOT_VALID: 2005b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fssfch1", 2006b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req); 2007c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2008c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2009c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_FCPLUN_NOT_VALID: 2010c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_HANDLE_NOT_VALID: 2011b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fssfch2", req); 2012c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2014c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_SERVICE_CLASS_NOT_SUPPORTED: 2015c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_class_not_supp(req); 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2017c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ACCESS_DENIED: 2018a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual); 2019a1ca48319a9aa1c5b57ce142f538e76050bb8972Christof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2020c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2021c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_DIRECTION_INDICATOR_NOT_VALID: 2022c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2023b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt "Incorrect direction %d, LUN 0x%016Lx on port " 2024ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "0x%016Lx closed\n", 2025c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction, 2026b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt (unsigned long long)zfcp_scsi_dev_lun(sdev), 2027b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt (unsigned long long)zfcp_sdev->port->wwpn); 2028b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, 2029b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt "fssfch3", req); 2030c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2031c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2032c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_CMND_LENGTH_NOT_VALID: 2033c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig dev_err(&req->adapter->ccw_device->dev, 2034b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt "Incorrect CDB length %d, LUN 0x%016Lx on " 2035ff3b24fa5370a7ca618f212284d9b36fcedb9c0eChristof Schmitt "port 0x%016Lx closed\n", 2036c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.fcp_cmnd_length, 2037b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt (unsigned long long)zfcp_scsi_dev_lun(sdev), 2038b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt (unsigned long long)zfcp_sdev->port->wwpn); 2039b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, 2040b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt "fssfch4", req); 2041c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2042c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2043c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_PORT_BOXED: 2044edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_port_status(zfcp_sdev->port, 2045edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig ZFCP_STATUS_COMMON_ACCESS_BOXED); 2046edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_port_reopen(zfcp_sdev->port, 2047edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig ZFCP_STATUS_COMMON_ERP_FAILED, "fssfch5", 2048edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig req); 20494c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2050c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2051c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_LUN_BOXED: 2052edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED); 2053edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, 2054edaed859e63aac174fcc3fed81886b91bb124661Swen Schillig "fssfch6", req); 20554c571c659e9d41332b6981ca5379047681ce9d2fChristof Schmitt req->status |= ZFCP_STATUS_FSFREQ_ERROR; 2056c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2057c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_ADAPTER_STATUS_AVAILABLE: 2058c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (header->fsf_status_qual.word[0] == 2059c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) 2060b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_fc_test_link(zfcp_sdev->port); 2061c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_ERROR; 20621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 20631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2064c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt} 2065c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt 2066c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmittstatic void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req) 2067c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt{ 2068c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt struct scsi_cmnd *scpnt; 2069c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 2070c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt unsigned long flags; 2071c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt 2072c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt read_lock_irqsave(&req->adapter->abort_lock, flags); 2073c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt 2074c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt scpnt = req->data; 2075c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt if (unlikely(!scpnt)) { 2076c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt read_unlock_irqrestore(&req->adapter->abort_lock, flags); 2077c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt return; 2078c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2079c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt 20805bfb2c31487eaff3840e02548e6acf89a048765bSwen Schillig zfcp_fsf_fcp_handler_common(req); 20815bfb2c31487eaff3840e02548e6acf89a048765bSwen Schillig 2082c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { 2083c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); 2084c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt goto skip_fsfstatus; 2085c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt } 2086c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt 2087c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt switch (req->qtcb->header.fsf_status) { 2088c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt case FSF_INCONSISTENT_PROT_DATA: 2089c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt case FSF_INVALID_PROT_PARM: 2090c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt set_host_byte(scpnt, DID_ERROR); 2091c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt goto skip_fsfstatus; 2092c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt case FSF_BLOCK_GUARD_CHECK_FAILURE: 2093c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt zfcp_scsi_dif_sense_error(scpnt, 0x1); 2094c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt goto skip_fsfstatus; 2095c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt case FSF_APP_TAG_CHECK_FAILURE: 2096c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt zfcp_scsi_dif_sense_error(scpnt, 0x2); 2097c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt goto skip_fsfstatus; 2098c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt case FSF_REF_TAG_CHECK_FAILURE: 2099c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt zfcp_scsi_dif_sense_error(scpnt, 0x3); 2100c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt goto skip_fsfstatus; 2101c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt } 2102c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 2103c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); 2104c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt 2105c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmittskip_fsfstatus: 2106c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt zfcp_fsf_req_trace(req, scpnt); 2107c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt zfcp_dbf_scsi_result(req->adapter->dbf, scpnt, req); 2108c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt 2109c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt scpnt->host_scribble = NULL; 2110c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt (scpnt->scsi_done) (scpnt); 2111c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt /* 2112c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt * We must hold this lock until scsi_done has been called. 2113c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt * Otherwise we may call scsi_done after abort regarding this 2114c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt * command has completed. 2115c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt * Note: scsi_done must not block! 2116c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt */ 2117c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt read_unlock_irqrestore(&req->adapter->abort_lock, flags); 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2120ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beckstatic int zfcp_fsf_set_data_dir(struct scsi_cmnd *scsi_cmnd, u32 *data_dir) 2121ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck{ 2122ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck switch (scsi_get_prot_op(scsi_cmnd)) { 2123ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case SCSI_PROT_NORMAL: 2124ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck switch (scsi_cmnd->sc_data_direction) { 2125ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case DMA_NONE: 2126ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck *data_dir = FSF_DATADIR_CMND; 2127ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck break; 2128ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case DMA_FROM_DEVICE: 2129ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck *data_dir = FSF_DATADIR_READ; 2130ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck break; 2131ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case DMA_TO_DEVICE: 2132ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck *data_dir = FSF_DATADIR_WRITE; 2133ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck break; 2134ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case DMA_BIDIRECTIONAL: 2135ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck return -EINVAL; 2136ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck } 2137ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck break; 2138ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck 2139ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case SCSI_PROT_READ_STRIP: 2140ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck *data_dir = FSF_DATADIR_DIF_READ_STRIP; 2141ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck break; 2142ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case SCSI_PROT_WRITE_INSERT: 2143ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck *data_dir = FSF_DATADIR_DIF_WRITE_INSERT; 2144ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck break; 2145ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case SCSI_PROT_READ_PASS: 2146ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck *data_dir = FSF_DATADIR_DIF_READ_CONVERT; 2147ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck break; 2148ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck case SCSI_PROT_WRITE_PASS: 2149ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck *data_dir = FSF_DATADIR_DIF_WRITE_CONVERT; 2150ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck break; 2151ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck default: 2152ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck return -EINVAL; 2153ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck } 2154ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck 2155ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck return 0; 2156ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck} 2157ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck 2158c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2159b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt * zfcp_fsf_fcp_cmnd - initiate an FCP command (for a SCSI command) 2160c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @scsi_cmnd: scsi command to be sent 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2162b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmittint zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd) 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2164c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req; 21654318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2166bc90c8632f63cd94246e3fb6f1b6d7ecba48f1a0Christof Schmitt unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; 2167ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck int real_bytes, retval = -EIO, dix_bytes = 0; 2168b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct scsi_device *sdev = scsi_cmnd->device; 2169b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); 2170b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; 2171564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 2172ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck struct fsf_qtcb_bottom_io *io; 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2174b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt if (unlikely(!(atomic_read(&zfcp_sdev->status) & 2175c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2176c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return -EBUSY; 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2178564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_lock(&qdio->req_q_lock); 2179706eca49a044a1ea89352dcc4b96ffc1631b2cb5Swen Schillig if (atomic_read(&qdio->req_q_free) <= 0) { 2180564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig atomic_inc(&qdio->req_q_full); 2181c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 21828fdf30d5429605a4c30cc515c73e5eab140035deChristof Schmitt } 218309a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 21841674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) 21851674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sbtype = SBAL_FLAGS0_TYPE_WRITE; 21861674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt 2187564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 21881674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt sbtype, adapter->pool.scsi_req); 218909a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2190025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2191c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = PTR_ERR(req); 2192c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2193c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2194c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2195ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck scsi_cmnd->host_scribble = (unsigned char *) req->req_id; 2196ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck 2197ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck io = &req->qtcb->bottom.io; 219809a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; 2199c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->data = scsi_cmnd; 2200c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt req->handler = zfcp_fsf_fcp_cmnd_handler; 2201b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; 2202b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->qtcb->header.port_handle = zfcp_sdev->port->handle; 2203ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck io->service_class = FSF_CLASS_3; 2204ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck io->fcp_cmnd_length = FCP_CMND_LEN; 2205c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2206ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck if (scsi_get_prot_op(scsi_cmnd) != SCSI_PROT_NORMAL) { 2207ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck io->data_block_length = scsi_cmnd->device->sector_size; 2208ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck io->ref_tag_value = scsi_get_lba(scsi_cmnd) & 0xFFFFFFFF; 22091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 22101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2211ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck zfcp_fsf_set_data_dir(scsi_cmnd, &io->data_direction); 2212ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck 22134318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 22144318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); 22151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2216ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck if (scsi_prot_sg_count(scsi_cmnd)) { 2217ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck zfcp_qdio_set_data_div(qdio, &req->qdio_req, 2218ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck scsi_prot_sg_count(scsi_cmnd)); 2219ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck dix_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, 2220ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck scsi_prot_sglist(scsi_cmnd)); 2221ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck io->prot_data_length = dix_bytes; 2222ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck } 2223ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck 22241674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, 222501b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig scsi_sglist(scsi_cmnd)); 2226ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck 2227ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck if (unlikely(real_bytes < 0) || unlikely(dix_bytes < 0)) 2228c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2230ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); 2231ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck 2232c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2233c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (unlikely(retval)) 2234c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto failed_scsi_cmnd; 22351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2236c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 22371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2238c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligfailed_scsi_cmnd: 2239c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2240c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig scsi_cmnd->host_scribble = NULL; 2241c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 2242564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig spin_unlock(&qdio->req_q_lock); 2243c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return retval; 22441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2246c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmittstatic void zfcp_fsf_fcp_task_mgmt_handler(struct zfcp_fsf_req *req) 2247c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt{ 2248c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt struct fcp_resp_with_ext *fcp_rsp; 2249c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt struct fcp_resp_rsp_info *rsp_info; 2250c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt 2251c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt zfcp_fsf_fcp_handler_common(req); 2252c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt 2253c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; 2254c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; 2255c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt 2256c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt if ((rsp_info->rsp_code != FCP_TMF_CMPL) || 2257c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt (req->status & ZFCP_STATUS_FSFREQ_ERROR)) 2258c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; 2259c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt} 2260c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt 22611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2262b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt * zfcp_fsf_fcp_task_mgmt - send SCSI task management command 2263b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt * @scmnd: SCSI command to send the task management command for 2264c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @tm_flags: unsigned byte for task management flags 2265c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct fsf_req, NULL otherwise 22661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2267b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmittstruct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd, 2268b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt u8 tm_flags) 22691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2270c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 22714318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt struct fcp_cmnd *fcp_cmnd; 2272b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scmnd->device); 2273b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio; 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2275b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt if (unlikely(!(atomic_read(&zfcp_sdev->status) & 2276c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig ZFCP_STATUS_COMMON_UNBLOCKED))) 2277c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return NULL; 22781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 227944a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 22806b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 2281c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 228209a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2283564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, 22841674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt SBAL_FLAGS0_TYPE_WRITE, 2285564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig qdio->adapter->pool.scsi_req); 228609a46c6e34ba152169b7400d266d2efb4c391a43Swen Schillig 2287633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig if (IS_ERR(req)) { 2288633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig req = NULL; 2289c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2290633528c304f20b5c2e3e04d48f620548ce08b12eSwen Schillig } 22911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2292c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2293b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->data = scmnd; 2294c61b536c97f225a74cf430716fdb243dfafe9d48Christof Schmitt req->handler = zfcp_fsf_fcp_task_mgmt_handler; 2295b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; 2296b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt req->qtcb->header.port_handle = zfcp_sdev->port->handle; 2297c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; 2298c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->qtcb->bottom.io.service_class = FSF_CLASS_3; 22994318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; 2300c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 23011674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); 23021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23034318e08c84e4916ac463002ffb7f9901ddb3c385Christof Schmitt fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; 2304b62a8d9b45b971a67a0f8413338c230e3117dff5Christof Schmitt zfcp_fc_fcp_tm(fcp_cmnd, scmnd->device, tm_flags); 23051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2306c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); 2307c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!zfcp_fsf_req_send(req)) 2308c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2310c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2311c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req = NULL; 2312c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 231344a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 2314c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 2315c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig} 23161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2317c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstatic void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) 2318c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig{ 23191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2321c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig/** 2322c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * zfcp_fsf_control_file - control file upload/download 2323c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @adapter: pointer to struct zfcp_adapter 2324c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc 2325c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise 23261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2327c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligstruct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, 2328c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_cfdc *fsf_cfdc) 23291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2330564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_qdio *qdio = adapter->qdio; 2331c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct zfcp_fsf_req *req = NULL; 2332c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig struct fsf_qtcb_bottom_support *bottom; 2333c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig int direction, retval = -EIO, bytes; 2334c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2335c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) 2336c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EOPNOTSUPP); 2337c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig 2338c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig switch (fsf_cfdc->command) { 2339c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_DOWNLOAD_CONTROL_FILE: 2340c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_WRITE; 2341c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2342c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig case FSF_QTCB_UPLOAD_CONTROL_FILE: 2343c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig direction = SBAL_FLAGS0_TYPE_READ; 2344c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig break; 2345c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig default: 2346c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(-EINVAL); 2347c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 234944a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_lock_irq(&qdio->req_q_lock); 23506b9e1520094a8aa68009c265eb694e0be9f5be3fChristof Schmitt if (zfcp_qdio_sbal_get(qdio)) 2351c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 23521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23531674b4054744c2cfd6573e43eca45d86ff581d0eChristof Schmitt req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL); 2354025270f0eaa2def673747ed6f77cca41f694f354Hirofumi Nakagawa if (IS_ERR(req)) { 2355c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = -EPERM; 2356c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2357c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 23581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2359c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig req->handler = zfcp_fsf_control_file_handler; 23601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2361c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom = &req->qtcb->bottom.support; 2362c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; 2363c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig bottom->option = fsf_cfdc->option; 23648a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 236501b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg); 236601b047599ade30051bf6c14fbe64181d1fec3dfaSwen Schillig 2367c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (bytes != ZFCP_CFDC_MAX_SIZE) { 2368c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_req_free(req); 2369c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig goto out; 2370c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig } 2371ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4Felix Beck zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); 23721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2373c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); 2374c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig retval = zfcp_fsf_req_send(req); 2375c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schilligout: 237644a24cb3731495336d77f3a955a7004997270dfdChristof Schmitt spin_unlock_irq(&qdio->req_q_lock); 23778a36e4532ea10471f0a8605207d071361d7be2c3Maxim Shchetynin 2378c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig if (!retval) { 2379058b8647892ed49ba6a0d2c0966a72e20e2e69ffSwen Schillig wait_for_completion(&req->completion); 2380c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return req; 23811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2382c41f8cbddd4e0e72951e0575165dea8ea26f1c4bSwen Schillig return ERR_PTR(retval); 23831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2384bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2385bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig/** 2386bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO 2387bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @adapter: pointer to struct zfcp_adapter 2388bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * @sbal_idx: response queue index of SBAL to be processed 2389bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2390564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schilligvoid zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) 2391bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig{ 2392564e1c86c810f9ccfe4300afa402815e3db4886dSwen Schillig struct zfcp_adapter *adapter = qdio->adapter; 2393706eca49a044a1ea89352dcc4b96ffc1631b2cb5Swen Schillig struct qdio_buffer *sbal = qdio->res_q[sbal_idx]; 2394bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct qdio_buffer_element *sbale; 2395bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig struct zfcp_fsf_req *fsf_req; 2396b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt unsigned long req_id; 2397bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig int idx; 2398bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2399bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { 2400bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2401bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig sbale = &sbal->element[idx]; 2402bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id = (unsigned long) sbale->addr; 2403b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51Christof Schmitt fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id); 2404bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2405339f4f4eab80caa6cf0d39fb057ad6ddb84ba91eChristof Schmitt if (!fsf_req) { 2406bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig /* 2407bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * Unknown request means that we have potentially memory 2408bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig * corruption and must stop the machine immediately. 2409bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig */ 2410339f4f4eab80caa6cf0d39fb057ad6ddb84ba91eChristof Schmitt zfcp_qdio_siosl(adapter); 2411bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig panic("error: unknown req_id (%lx) on adapter %s.\n", 2412bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig req_id, dev_name(&adapter->ccw_device->dev)); 2413339f4f4eab80caa6cf0d39fb057ad6ddb84ba91eChristof Schmitt } 2414bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 241534c2b712992540ca436e97432ffc57c84c8f8c18Christof Schmitt fsf_req->qdio_req.sbal_response = sbal_idx; 2416bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig zfcp_fsf_req_complete(fsf_req); 2417bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig 2418bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) 2419bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig break; 2420bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig } 2421bd63eaf4b8d783e6033930e377e516169abcadc4Swen Schillig} 2422