scsi_transport_fc.c revision 5415907af1f5ef80c95147bacbd321b0d4236dd5
19ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FiberChannel transport specific attributes exported to sysfs. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ======== 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 22a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Copyright (C) 2004-2007 James Smart, Emulex Corporation 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Rewrite for host, target, device, and remote port attributes, 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * statistics, and service functions... 259ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * Add vports, etc 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_device.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_host.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport_fc.h> 34c829c394165f981d49f05a9be228404d7a9398d4James Smart#include <scsi/scsi_cmnd.h> 3584314fd4740ad73550c76dee4a9578979d84af48James Smart#include <linux/netlink.h> 3684314fd4740ad73550c76dee4a9578979d84af48James Smart#include <net/netlink.h> 3784314fd4740ad73550c76dee4a9578979d84af48James Smart#include <scsi/scsi_netlink_fc.h> 389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart#include <scsi/scsi_bsg_fc.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "scsi_priv.h" 407525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori#include "scsi_transport_fc_internal.h" 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 42aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int fc_queue_work(struct Scsi_Host *, struct work_struct *); 439ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartstatic void fc_vport_sched_delete(struct work_struct *work); 44a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezstatic int fc_vport_setup(struct Scsi_Host *shost, int channel, 45a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *pdev, struct fc_vport_identifiers *ids, 46a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport **vport); 479e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_bsg_hostadd(struct Scsi_Host *, struct fc_host_attrs *); 489e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_bsg_rportadd(struct Scsi_Host *, struct fc_rport *); 499e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void fc_bsg_remove(struct request_queue *); 509e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void fc_bsg_goose_queue(struct fc_rport *); 51a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 52a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Redefine so that we can have same named attributes in the 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sdev/starget/host objects. 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 56ee959b00c335d7780136c5abda37809191fe52c3Tony Jones#define FC_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \ 57ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstruct device_attribute device_attr_##_prefix##_##_name = \ 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ATTR(_name,_mode,_show,_store) 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_enum_name_search(title, table_type, table) \ 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const char *get_fc_##title##_name(enum table_type table_key) \ 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name = NULL; \ 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 666391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (table[i].value == table_key) { \ 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = table[i].name; \ 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; \ 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return name; \ 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_enum_name_match(title, table_type, table) \ 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int get_fc_##title##_match(const char *table_key, \ 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum table_type *value) \ 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 816391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(table_key, table[i].name, \ 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds table[i].matchlen) == 0) { \ 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *value = table[i].value; \ 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* success */ \ 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; /* failure */ \ 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_port_type values to ascii string name */ 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_port_type value; 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_type_names[] = { 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_UNKNOWN, "Unknown" }, 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_OTHER, "Other" }, 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NOTPRESENT, "Not Present" }, 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NPORT, "NPort (fabric via point-to-point)" }, 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NLPORT, "NLPort (fabric via loop)" }, 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_LPORT, "LPort (private loop)" }, 103951948a397e3ddc96658efd648b9d66622965b19Christof Schmitt { FC_PORTTYPE_PTP, "Point-To-Point (direct nport connection)" }, 104a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORTTYPE_NPIV, "NPIV VPORT" }, 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(port_type, fc_port_type, fc_port_type_names) 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_PORTTYPE_MAX_NAMELEN 50 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 109a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Reuse fc_port_type enum function for vport_type */ 110a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define get_fc_vport_type_name get_fc_port_type_name 111a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11384314fd4740ad73550c76dee4a9578979d84af48James Smart/* Convert fc_host_event_code values to ascii string name */ 11484314fd4740ad73550c76dee4a9578979d84af48James Smartstatic const struct { 11584314fd4740ad73550c76dee4a9578979d84af48James Smart enum fc_host_event_code value; 11684314fd4740ad73550c76dee4a9578979d84af48James Smart char *name; 11784314fd4740ad73550c76dee4a9578979d84af48James Smart} fc_host_event_code_names[] = { 11884314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LIP, "lip" }, 11984314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINKUP, "link_up" }, 12084314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINKDOWN, "link_down" }, 12184314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LIPRESET, "lip_reset" }, 12284314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_RSCN, "rscn" }, 12384314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_ADAPTER_CHANGE, "adapter_chg" }, 12484314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_UNKNOWN, "port_unknown" }, 12584314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_ONLINE, "port_online" }, 12684314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_OFFLINE, "port_offline" }, 12784314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_FABRIC, "port_fabric" }, 12884314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINK_UNKNOWN, "link_unknown" }, 12984314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_VENDOR_UNIQUE, "vendor_unique" }, 13084314fd4740ad73550c76dee4a9578979d84af48James Smart}; 13184314fd4740ad73550c76dee4a9578979d84af48James Smartfc_enum_name_search(host_event_code, fc_host_event_code, 13284314fd4740ad73550c76dee4a9578979d84af48James Smart fc_host_event_code_names) 13384314fd4740ad73550c76dee4a9578979d84af48James Smart#define FC_HOST_EVENT_CODE_MAX_NAMELEN 30 13484314fd4740ad73550c76dee4a9578979d84af48James Smart 13584314fd4740ad73550c76dee4a9578979d84af48James Smart 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_port_state values to ascii string name */ 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_port_state value; 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_state_names[] = { 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_UNKNOWN, "Unknown" }, 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_NOTPRESENT, "Not Present" }, 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_ONLINE, "Online" }, 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_OFFLINE, "Offline" }, 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_BLOCKED, "Blocked" }, 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_BYPASSED, "Bypassed" }, 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_DIAGNOSTICS, "Diagnostics" }, 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_LINKDOWN, "Linkdown" }, 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_ERROR, "Error" }, 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_LOOPBACK, "Loopback" }, 15142e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com { FC_PORTSTATE_DELETED, "Deleted" }, 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(port_state, fc_port_state, fc_port_state_names) 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_PORTSTATE_MAX_NAMELEN 20 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 157a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Convert fc_vport_state values to ascii string name */ 158a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic struct { 159a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart enum fc_vport_state value; 160a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *name; 161a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} fc_vport_state_names[] = { 162a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_UNKNOWN, "Unknown" }, 163a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_ACTIVE, "Active" }, 164a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_DISABLED, "Disabled" }, 165a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_LINKDOWN, "Linkdown" }, 166a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_INITIALIZING, "Initializing" }, 167a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_NO_FABRIC_SUPP, "No Fabric Support" }, 168a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_NO_FABRIC_RSCS, "No Fabric Resources" }, 169a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FABRIC_LOGOUT, "Fabric Logout" }, 170a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FABRIC_REJ_WWN, "Fabric Rejected WWN" }, 171a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FAILED, "VPort Failed" }, 172a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart}; 173a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_enum_name_search(vport_state, fc_vport_state, fc_vport_state_names) 174a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define FC_VPORTSTATE_MAX_NAMELEN 24 175a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 176a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Reuse fc_vport_state enum function for vport_last_state */ 177a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define get_fc_vport_last_state_name get_fc_vport_state_name 178a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 179a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_tgtid_binding_type values to ascii string name */ 1810ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_tgtid_binding_type value; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int matchlen; 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_tgtid_binding_type_names[] = { 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_NONE, "none", 4 }, 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_WWPN, "wwpn (World Wide Port Name)", 4 }, 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_WWNN, "wwnn (World Wide Node Name)", 4 }, 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_ID, "port_id (FC Address)", 7 }, 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(tgtid_bind_type, fc_tgtid_binding_type, 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_tgtid_binding_type_names) 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_match(tgtid_bind_type, fc_tgtid_binding_type, 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_tgtid_binding_type_names) 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_BINDTYPE_MAX_NAMELEN 30 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_bitfield_name_search(title, table) \ 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsget_fc_##title##_names(u32 table_key, char *buf) \ 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *prefix = ""; \ 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssize_t len = 0; \ 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 2066391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (table[i].value & table_key) { \ 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "%s%s", \ 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prefix, table[i].name); \ 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prefix = ", "; \ 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "\n"); \ 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; \ 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert FC_COS bit values to ascii string name */ 2190ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_cos_names[] = { 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS1, "Class 1" }, 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS2, "Class 2" }, 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS3, "Class 3" }, 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS4, "Class 4" }, 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS6, "Class 6" }, 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_bitfield_name_search(cos, fc_cos_names) 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert FC_PORTSPEED bit values to ascii string name */ 2330ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_speed_names[] = { 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_1GBIT, "1 Gbit" }, 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_2GBIT, "2 Gbit" }, 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_4GBIT, "4 Gbit" }, 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_10GBIT, "10 Gbit" }, 241c3d2350a8420dbf9d48f5f8a0fb72117bfcbc1b0James Smart { FC_PORTSPEED_8GBIT, "8 Gbit" }, 242c3d2350a8420dbf9d48f5f8a0fb72117bfcbc1b0James Smart { FC_PORTSPEED_16GBIT, "16 Gbit" }, 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_NOT_NEGOTIATED, "Not Negotiated" }, 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_bitfield_name_search(port_speed, fc_port_speed_names) 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_fc4s (char *buf, u8 *fc4_list) 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, len=0; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < FC_FC4_LIST_SIZE; i++, fc4_list++) 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len , "0x%02x ", *fc4_list); 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "\n"); 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 260a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Convert FC_PORT_ROLE bit values to ascii string name */ 2610ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 264a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} fc_port_role_names[] = { 265a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_FCP_TARGET, "FCP Target" }, 266a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_FCP_INITIATOR, "FCP Initiator" }, 267a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_IP_PORT, "IP Port" }, 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 269a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_bitfield_name_search(port_roles, fc_port_role_names) 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Define roles that are specific to port_id. Values are relative to ROLE_MASK. 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_WELLKNOWN_PORTID_MASK 0xfffff0 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_WELLKNOWN_ROLE_MASK 0x00000f 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FPORT_PORTID 0x00000e 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FABCTLR_PORTID 0x00000d 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_DIRSRVR_PORTID 0x00000c 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_TIMESRVR_PORTID 0x00000b 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_MGMTSRVR_PORTID 0x00000a 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 283c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_timeout_deleted_rport(struct work_struct *work); 284c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_timeout_fail_rport_io(struct work_struct *work); 285c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_scsi_scan_rport(struct work_struct *work); 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Attribute counts pre object type... 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Increase these values if you add attributes 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_STARGET_NUM_ATTRS 3 2920f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart#define FC_RPORT_NUM_ATTRS 10 293a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define FC_VPORT_NUM_ATTRS 9 2944643682ba50634db5cd61292711d031630baf233James Smart#define FC_HOST_NUM_ATTRS 22 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fc_internal { 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_transport_template t; 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_function_template *f; 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For attributes : each object has : 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * An array of the actual attributes structures 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * An array of null-terminated pointers to the attribute 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * structures - used for mid-layer interaction. 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The attribute containers for the starget and host are are 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * part of the midlayer. As the remote port is specific to the 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc transport, we must provide the attribute container. 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 310ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_starget_attrs[ 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FC_STARGET_NUM_ATTRS]; 312ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *starget_attrs[FC_STARGET_NUM_ATTRS + 1]; 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 314ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_host_attrs[FC_HOST_NUM_ATTRS]; 315ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *host_attrs[FC_HOST_NUM_ATTRS + 1]; 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct transport_container rport_attr_cont; 318ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_rport_attrs[FC_RPORT_NUM_ATTRS]; 319ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *rport_attrs[FC_RPORT_NUM_ATTRS + 1]; 320a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 321a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct transport_container vport_attr_cont; 322ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_vport_attrs[FC_VPORT_NUM_ATTRS]; 323ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *vport_attrs[FC_VPORT_NUM_ATTRS + 1]; 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define to_fc_internal(tmpl) container_of(tmpl, struct fc_internal, t) 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 328d0a7e574007fd547d72ec693bfa35778623d0738James Bottomleystatic int fc_target_setup(struct transport_container *tc, struct device *dev, 329ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device *cdev) 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_target *starget = to_scsi_target(dev); 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = starget_to_rport(starget); 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if parent is remote port, use values from remote port. 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise, this host uses the fc_transport, but not the 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * remote port interface. As such, initialize to known non-values. 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport) { 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_node_name(starget) = rport->node_name; 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_name(starget) = rport->port_name; 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_id(starget) = rport->port_id; 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_node_name(starget) = -1; 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_name(starget) = -1; 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_id(starget) = -1; 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_transport_class, 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_transport", 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_target_setup, 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 358d0a7e574007fd547d72ec693bfa35778623d0738James Bottomleystatic int fc_host_setup(struct transport_container *tc, struct device *dev, 359ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device *cdev) 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = dev_to_shost(dev); 362aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3649ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart /* 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set default values easily detected by the midlayer as 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * failure cases. The scsi lldd is responsible for initializing 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * all transport attributes to valid values per host. 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 369aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->node_name = -1; 370aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_name = -1; 371aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->permanent_port_name = -1; 372aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->supported_classes = FC_COS_UNSPECIFIED; 373aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->supported_fc4s, 0, 374aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->supported_fc4s)); 375aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->supported_speeds = FC_PORTSPEED_UNKNOWN; 376aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->maxframe_size = -1; 377a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->max_npiv_vports = 0; 378aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->serial_number, 0, 379aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->serial_number)); 380aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 381aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_id = -1; 382aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_type = FC_PORTTYPE_UNKNOWN; 383aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_state = FC_PORTSTATE_UNKNOWN; 384aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->active_fc4s, 0, 385aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->active_fc4s)); 386aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->speed = FC_PORTSPEED_UNKNOWN; 387aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->fabric_name = -1; 388b8d08210126a7b769b857720a59721a453a57a1eJames Smart memset(fc_host->symbolic_name, 0, sizeof(fc_host->symbolic_name)); 389b8d08210126a7b769b857720a59721a453a57a1eJames Smart memset(fc_host->system_hostname, 0, sizeof(fc_host->system_hostname)); 390aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 391aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->tgtid_bind_type = FC_TGTID_BIND_BY_WWPN; 392aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 393aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart INIT_LIST_HEAD(&fc_host->rports); 394aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart INIT_LIST_HEAD(&fc_host->rport_bindings); 395a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart INIT_LIST_HEAD(&fc_host->vports); 396aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->next_rport_number = 0; 397aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->next_target_id = 0; 398a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->next_vport_number = 0; 399a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse = 0; 400aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 401aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name), 402aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers "fc_wq_%d", shost->host_no); 403aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q = create_singlethread_workqueue( 404aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q_name); 405aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host->work_q) 406aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -ENOMEM; 407aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 408aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers snprintf(fc_host->devloss_work_q_name, 409aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers sizeof(fc_host->devloss_work_q_name), 410aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers "fc_dl_%d", shost->host_no); 411aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->devloss_work_q = create_singlethread_workqueue( 412aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->devloss_work_q_name); 413aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host->devloss_work_q) { 414aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(fc_host->work_q); 415aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q = NULL; 416aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -ENOMEM; 417aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 418aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 4199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_hostadd(shost, fc_host); 4209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* ignore any bsg add error - we just can't do sgio */ 4219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 4239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 4249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4259e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_host_remove(struct transport_container *tc, struct device *dev, 4269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *cdev) 4279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 4289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = dev_to_shost(dev); 4299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 4309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_remove(fc_host->rqst_q); 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_host_class, 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_host", 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_setup, 4389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host_remove, 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup and Remove actions for remote ports are handled 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in the service functions below. 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_rport_class, 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_remote_ports", 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 452a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Setup and Remove actions for virtual ports are handled 453a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * in the service functions below. 454a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 455a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic DECLARE_TRANSPORT_CLASS(fc_vport_class, 456a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "fc_vports", 457a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, 458a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, 459a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL); 460a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 461a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Module Parameters 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * dev_loss_tmo: the default number of seconds that the FC transport 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * should insulate the loss of a remote port. 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The maximum will be capped by the value of SCSI_DEVICE_BLOCK_MAX_TIMEOUT. 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4701c9e16e47a22c61d99aabb1c154e5106ddbf3575James Smartstatic unsigned int fc_dev_loss_tmo = 60; /* seconds */ 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 47210f4b89a0f0586a67f57efb2f5d12fffbb371490Masatake YAMATOmodule_param_named(dev_loss_tmo, fc_dev_loss_tmo, uint, S_IRUGO|S_IWUSR); 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(dev_loss_tmo, 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Maximum number of seconds that the FC transport should" 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " insulate the loss of a remote port. Once this value is" 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " exceeded, the scsi target is removed. Value should be" 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " between 1 and SCSI_DEVICE_BLOCK_MAX_TIMEOUT."); 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 479eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley/* 48084314fd4740ad73550c76dee4a9578979d84af48James Smart * Netlink Infrastructure 481eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 48284314fd4740ad73550c76dee4a9578979d84af48James Smart 48384314fd4740ad73550c76dee4a9578979d84af48James Smartstatic atomic_t fc_event_seq; 48484314fd4740ad73550c76dee4a9578979d84af48James Smart 48584314fd4740ad73550c76dee4a9578979d84af48James Smart/** 48684314fd4740ad73550c76dee4a9578979d84af48James Smart * fc_get_event_number - Obtain the next sequential FC event number 48784314fd4740ad73550c76dee4a9578979d84af48James Smart * 48884314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 489eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * We could have inlined this, but it would have required fc_event_seq to 49084314fd4740ad73550c76dee4a9578979d84af48James Smart * be exposed. For now, live with the subroutine call. 49184314fd4740ad73550c76dee4a9578979d84af48James Smart * Atomic used to avoid lock/unlock... 492eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 49384314fd4740ad73550c76dee4a9578979d84af48James Smartu32 49484314fd4740ad73550c76dee4a9578979d84af48James Smartfc_get_event_number(void) 49584314fd4740ad73550c76dee4a9578979d84af48James Smart{ 49684314fd4740ad73550c76dee4a9578979d84af48James Smart return atomic_add_return(1, &fc_event_seq); 49784314fd4740ad73550c76dee4a9578979d84af48James Smart} 49884314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_get_event_number); 49984314fd4740ad73550c76dee4a9578979d84af48James Smart 50084314fd4740ad73550c76dee4a9578979d84af48James Smart 50184314fd4740ad73550c76dee4a9578979d84af48James Smart/** 50284314fd4740ad73550c76dee4a9578979d84af48James Smart * fc_host_post_event - called to post an even on an fc_host. 50384314fd4740ad73550c76dee4a9578979d84af48James Smart * @shost: host the event occurred on 50484314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_number: fc event number obtained from get_fc_event_number() 50584314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_code: fc_host event being posted 50684314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_data: 32bits of data for the event being posted 50784314fd4740ad73550c76dee4a9578979d84af48James Smart * 50884314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 50984314fd4740ad73550c76dee4a9578979d84af48James Smart * This routine assumes no locks are held on entry. 510eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 51184314fd4740ad73550c76dee4a9578979d84af48James Smartvoid 51284314fd4740ad73550c76dee4a9578979d84af48James Smartfc_host_post_event(struct Scsi_Host *shost, u32 event_number, 51384314fd4740ad73550c76dee4a9578979d84af48James Smart enum fc_host_event_code event_code, u32 event_data) 51484314fd4740ad73550c76dee4a9578979d84af48James Smart{ 51584314fd4740ad73550c76dee4a9578979d84af48James Smart struct sk_buff *skb; 51684314fd4740ad73550c76dee4a9578979d84af48James Smart struct nlmsghdr *nlh; 51784314fd4740ad73550c76dee4a9578979d84af48James Smart struct fc_nl_event *event; 51884314fd4740ad73550c76dee4a9578979d84af48James Smart const char *name; 51984314fd4740ad73550c76dee4a9578979d84af48James Smart u32 len, skblen; 52084314fd4740ad73550c76dee4a9578979d84af48James Smart int err; 52184314fd4740ad73550c76dee4a9578979d84af48James Smart 52284314fd4740ad73550c76dee4a9578979d84af48James Smart if (!scsi_nl_sock) { 52384314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOENT; 52484314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail; 52584314fd4740ad73550c76dee4a9578979d84af48James Smart } 52684314fd4740ad73550c76dee4a9578979d84af48James Smart 52784314fd4740ad73550c76dee4a9578979d84af48James Smart len = FC_NL_MSGALIGN(sizeof(*event)); 52884314fd4740ad73550c76dee4a9578979d84af48James Smart skblen = NLMSG_SPACE(len); 52984314fd4740ad73550c76dee4a9578979d84af48James Smart 53084314fd4740ad73550c76dee4a9578979d84af48James Smart skb = alloc_skb(skblen, GFP_KERNEL); 53184314fd4740ad73550c76dee4a9578979d84af48James Smart if (!skb) { 53284314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 53384314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail; 53484314fd4740ad73550c76dee4a9578979d84af48James Smart } 53584314fd4740ad73550c76dee4a9578979d84af48James Smart 53684314fd4740ad73550c76dee4a9578979d84af48James Smart nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, 53784314fd4740ad73550c76dee4a9578979d84af48James Smart skblen - sizeof(*nlh), 0); 53884314fd4740ad73550c76dee4a9578979d84af48James Smart if (!nlh) { 53984314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 54084314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail_skb; 54184314fd4740ad73550c76dee4a9578979d84af48James Smart } 54284314fd4740ad73550c76dee4a9578979d84af48James Smart event = NLMSG_DATA(nlh); 54384314fd4740ad73550c76dee4a9578979d84af48James Smart 54484314fd4740ad73550c76dee4a9578979d84af48James Smart INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC, 54584314fd4740ad73550c76dee4a9578979d84af48James Smart FC_NL_ASYNC_EVENT, len); 54684314fd4740ad73550c76dee4a9578979d84af48James Smart event->seconds = get_seconds(); 54784314fd4740ad73550c76dee4a9578979d84af48James Smart event->vendor_id = 0; 54884314fd4740ad73550c76dee4a9578979d84af48James Smart event->host_no = shost->host_no; 54984314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_datalen = sizeof(u32); /* bytes */ 55084314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_num = event_number; 55184314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_code = event_code; 55284314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_data = event_data; 55384314fd4740ad73550c76dee4a9578979d84af48James Smart 554ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, 555ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso GFP_KERNEL); 55684314fd4740ad73550c76dee4a9578979d84af48James Smart return; 55784314fd4740ad73550c76dee4a9578979d84af48James Smart 55884314fd4740ad73550c76dee4a9578979d84af48James Smartsend_fail_skb: 55984314fd4740ad73550c76dee4a9578979d84af48James Smart kfree_skb(skb); 56084314fd4740ad73550c76dee4a9578979d84af48James Smartsend_fail: 56184314fd4740ad73550c76dee4a9578979d84af48James Smart name = get_fc_host_event_code_name(event_code); 56284314fd4740ad73550c76dee4a9578979d84af48James Smart printk(KERN_WARNING 56384314fd4740ad73550c76dee4a9578979d84af48James Smart "%s: Dropped Event : host %d %s data 0x%08x - err %d\n", 564cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison __func__, shost->host_no, 56584314fd4740ad73550c76dee4a9578979d84af48James Smart (name) ? name : "<unknown>", event_data, err); 56684314fd4740ad73550c76dee4a9578979d84af48James Smart return; 56784314fd4740ad73550c76dee4a9578979d84af48James Smart} 56884314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_host_post_event); 56984314fd4740ad73550c76dee4a9578979d84af48James Smart 57084314fd4740ad73550c76dee4a9578979d84af48James Smart 57184314fd4740ad73550c76dee4a9578979d84af48James Smart/** 572eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_host_post_vendor_event - called to post a vendor unique event on an fc_host 57384314fd4740ad73550c76dee4a9578979d84af48James Smart * @shost: host the event occurred on 57484314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_number: fc event number obtained from get_fc_event_number() 57584314fd4740ad73550c76dee4a9578979d84af48James Smart * @data_len: amount, in bytes, of vendor unique data 57684314fd4740ad73550c76dee4a9578979d84af48James Smart * @data_buf: pointer to vendor unique data 577eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @vendor_id: Vendor id 57884314fd4740ad73550c76dee4a9578979d84af48James Smart * 57984314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 58084314fd4740ad73550c76dee4a9578979d84af48James Smart * This routine assumes no locks are held on entry. 581eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 58284314fd4740ad73550c76dee4a9578979d84af48James Smartvoid 58384314fd4740ad73550c76dee4a9578979d84af48James Smartfc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number, 584f14e2e29cdd07f80de6dec168dc2bb39de37eec3James Smart u32 data_len, char * data_buf, u64 vendor_id) 58584314fd4740ad73550c76dee4a9578979d84af48James Smart{ 58684314fd4740ad73550c76dee4a9578979d84af48James Smart struct sk_buff *skb; 58784314fd4740ad73550c76dee4a9578979d84af48James Smart struct nlmsghdr *nlh; 58884314fd4740ad73550c76dee4a9578979d84af48James Smart struct fc_nl_event *event; 58984314fd4740ad73550c76dee4a9578979d84af48James Smart u32 len, skblen; 59084314fd4740ad73550c76dee4a9578979d84af48James Smart int err; 59184314fd4740ad73550c76dee4a9578979d84af48James Smart 59284314fd4740ad73550c76dee4a9578979d84af48James Smart if (!scsi_nl_sock) { 59384314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOENT; 59484314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail; 59584314fd4740ad73550c76dee4a9578979d84af48James Smart } 59684314fd4740ad73550c76dee4a9578979d84af48James Smart 59784314fd4740ad73550c76dee4a9578979d84af48James Smart len = FC_NL_MSGALIGN(sizeof(*event) + data_len); 59884314fd4740ad73550c76dee4a9578979d84af48James Smart skblen = NLMSG_SPACE(len); 59984314fd4740ad73550c76dee4a9578979d84af48James Smart 60084314fd4740ad73550c76dee4a9578979d84af48James Smart skb = alloc_skb(skblen, GFP_KERNEL); 60184314fd4740ad73550c76dee4a9578979d84af48James Smart if (!skb) { 60284314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 60384314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail; 60484314fd4740ad73550c76dee4a9578979d84af48James Smart } 60584314fd4740ad73550c76dee4a9578979d84af48James Smart 60684314fd4740ad73550c76dee4a9578979d84af48James Smart nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, 60784314fd4740ad73550c76dee4a9578979d84af48James Smart skblen - sizeof(*nlh), 0); 60884314fd4740ad73550c76dee4a9578979d84af48James Smart if (!nlh) { 60984314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 61084314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail_skb; 61184314fd4740ad73550c76dee4a9578979d84af48James Smart } 61284314fd4740ad73550c76dee4a9578979d84af48James Smart event = NLMSG_DATA(nlh); 61384314fd4740ad73550c76dee4a9578979d84af48James Smart 61484314fd4740ad73550c76dee4a9578979d84af48James Smart INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC, 61584314fd4740ad73550c76dee4a9578979d84af48James Smart FC_NL_ASYNC_EVENT, len); 61684314fd4740ad73550c76dee4a9578979d84af48James Smart event->seconds = get_seconds(); 61784314fd4740ad73550c76dee4a9578979d84af48James Smart event->vendor_id = vendor_id; 61884314fd4740ad73550c76dee4a9578979d84af48James Smart event->host_no = shost->host_no; 61984314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_datalen = data_len; /* bytes */ 62084314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_num = event_number; 62184314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_code = FCH_EVT_VENDOR_UNIQUE; 62284314fd4740ad73550c76dee4a9578979d84af48James Smart memcpy(&event->event_data, data_buf, data_len); 62384314fd4740ad73550c76dee4a9578979d84af48James Smart 624ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, 625ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso GFP_KERNEL); 62684314fd4740ad73550c76dee4a9578979d84af48James Smart return; 62784314fd4740ad73550c76dee4a9578979d84af48James Smart 62884314fd4740ad73550c76dee4a9578979d84af48James Smartsend_vendor_fail_skb: 62984314fd4740ad73550c76dee4a9578979d84af48James Smart kfree_skb(skb); 63084314fd4740ad73550c76dee4a9578979d84af48James Smartsend_vendor_fail: 63184314fd4740ad73550c76dee4a9578979d84af48James Smart printk(KERN_WARNING 63284314fd4740ad73550c76dee4a9578979d84af48James Smart "%s: Dropped Event : host %d vendor_unique - err %d\n", 633cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison __func__, shost->host_no, err); 63484314fd4740ad73550c76dee4a9578979d84af48James Smart return; 63584314fd4740ad73550c76dee4a9578979d84af48James Smart} 63684314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_host_post_vendor_event); 63784314fd4740ad73550c76dee4a9578979d84af48James Smart 63884314fd4740ad73550c76dee4a9578979d84af48James Smart 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __init int fc_transport_init(void) 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 64284314fd4740ad73550c76dee4a9578979d84af48James Smart int error; 64384314fd4740ad73550c76dee4a9578979d84af48James Smart 64484314fd4740ad73550c76dee4a9578979d84af48James Smart atomic_set(&fc_event_seq, 0); 64584314fd4740ad73550c76dee4a9578979d84af48James Smart 64684314fd4740ad73550c76dee4a9578979d84af48James Smart error = transport_class_register(&fc_host_class); 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 649a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = transport_class_register(&fc_vport_class); 650a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) 651a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return error; 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = transport_class_register(&fc_rport_class); 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return transport_class_register(&fc_transport_class); 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit fc_transport_exit(void) 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_transport_class); 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_rport_class); 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_host_class); 663a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_class_unregister(&fc_vport_class); 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FC Remote Port Attribute Management 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_show_function(field, format_string, sz, cast) \ 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 672ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##field (struct device *dev, \ 673ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 675ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); \ 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 67819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((i->f->get_rport_##field) && \ 67919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com !((rport->port_state == FC_PORTSTATE_BLOCKED) || \ 68042e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || \ 68119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT))) \ 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_rport_##field(rport); \ 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast rport->field); \ 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_store_function(field) \ 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 688ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_rport_##field(struct device *dev, \ 689ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 690ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; \ 693ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); \ 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 6960f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; \ 69719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) || \ 69842e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || \ 69919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT)) \ 70019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return -EBUSY; \ 7010f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); \ 7020f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (*cp && (*cp != '\n')) \ 7030f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; \ 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->set_rport_##field(rport, val); \ 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rd_attr(field, format_string, sz) \ 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, ) \ 710ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rd_attr_cast(field, format_string, sz, cast) \ 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, (cast)) \ 715ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rw_attr(field, format_string, sz) \ 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, ) \ 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_store_function(field) \ 721ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO | S_IWUSR, \ 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, \ 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_rport_##field) 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_show_function(field, format_string, sz, cast) \ 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 728ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##field (struct device *dev, \ 729ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 731ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast rport->field); \ 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_attr(field, format_string, sz) \ 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_rport_show_function(field, format_string, sz, ) \ 737ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_attr_cast(field, format_string, sz, cast) \ 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_rport_show_function(field, format_string, sz, (cast)) \ 742ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_enum_attr(title, maxlen) \ 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 748ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##title (struct device *dev, \ 749ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 751ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; \ 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_##title##_name(rport->title); \ 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) \ 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; \ 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, maxlen, "%s\n", name); \ 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 758ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, title, S_IRUGO, \ 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##title, NULL) 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_RPORT_ATTRIBUTE_RD(field) \ 763ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_rport_##field) \ 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(field) \ 771ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_RPORT_ATTRIBUTE_RW(field) \ 778ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_rport_##field) { \ 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_rport_##field) \ 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7870f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart#define SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(field) \ 7880f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ \ 789ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7900f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7910f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart count++; \ 7920f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 7930f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The FC Transport Remote Port Attributes: */ 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Fixed Remote Port Attributes */ 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(maxframe_size, "%u bytes\n", 20); 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 802ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_supported_classes (struct device *dev, 803ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 805ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->supported_classes == FC_COS_UNSPECIFIED) 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unspecified\n"); 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_cos_names(rport->supported_classes, buf); 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 810ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, supported_classes, S_IRUGO, 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_supported_classes, NULL); 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Dynamic Remote Port Attributes */ 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 81519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com/* 81619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * dev_loss_tmo attribute 81719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 81819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Comfc_rport_show_function(dev_loss_tmo, "%d\n", 20, ) 81919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Comstatic ssize_t 820ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_rport_dev_loss_tmo(struct device *dev, struct device_attribute *attr, 821ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 82219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com{ 82319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com int val; 824ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 82519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct Scsi_Host *shost = rport_to_shost(rport); 82619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct fc_internal *i = to_fc_internal(shost->transportt); 8270f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; 82819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) || 82942e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || 83019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT)) 83119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return -EBUSY; 8320f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); 8330f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((*cp && (*cp != '\n')) || 8340f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (val < 0) || (val > SCSI_DEVICE_BLOCK_MAX_TIMEOUT)) 83519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return -EINVAL; 83619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com i->f->set_rport_dev_loss_tmo(rport, val); 83719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return count; 83819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com} 839ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, dev_loss_tmo, S_IRUGO | S_IWUSR, 84019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com show_fc_rport_dev_loss_tmo, store_fc_rport_dev_loss_tmo); 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Private Remote Port Attributes */ 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(port_id, "0x%06x\n", 20); 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 850ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_roles (struct device *dev, struct device_attribute *attr, 851ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 853ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* identify any roles that are port_id specific */ 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((rport->port_id != -1) && 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (rport->port_id & FC_WELLKNOWN_PORTID_MASK) == 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FC_WELLKNOWN_PORTID_MASK) { 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (rport->port_id & FC_WELLKNOWN_ROLE_MASK) { 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_FPORT_PORTID: 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Fabric Port\n"); 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_FABCTLR_PORTID: 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Fabric Controller\n"); 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_DIRSRVR_PORTID: 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Directory Server\n"); 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TIMESRVR_PORTID: 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Time Server\n"); 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_MGMTSRVR_PORTID: 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Management Server\n"); 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Unknown Fabric Entity\n"); 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 874a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles == FC_PORT_ROLE_UNKNOWN) 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 876a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return get_fc_port_roles_names(rport->roles, buf); 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 879ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, roles, S_IRUGO, 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_roles, NULL); 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(scsi_target_id, "%d\n", 20); 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8850f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart/* 8860f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * fast_io_fail_tmo attribute 8870f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart */ 8880f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic ssize_t 889ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_fast_io_fail_tmo (struct device *dev, 890ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 8910f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 892ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 8930f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 8940f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->fast_io_fail_tmo == -1) 8950f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return snprintf(buf, 5, "off\n"); 8960f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return snprintf(buf, 20, "%d\n", rport->fast_io_fail_tmo); 8970f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 8980f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 8990f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic ssize_t 900ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_rport_fast_io_fail_tmo(struct device *dev, 901ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, 902ee959b00c335d7780136c5abda37809191fe52c3Tony Jones size_t count) 9030f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 9040f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart int val; 9050f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; 906ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 9070f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 9080f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((rport->port_state == FC_PORTSTATE_BLOCKED) || 9090f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (rport->port_state == FC_PORTSTATE_DELETED) || 9100f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (rport->port_state == FC_PORTSTATE_NOTPRESENT)) 9110f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EBUSY; 9120f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (strncmp(buf, "off", 3) == 0) 9130f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = -1; 9140f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart else { 9150f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); 9160f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((*cp && (*cp != '\n')) || 9170f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (val < 0) || (val >= rport->dev_loss_tmo)) 9180f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; 9190f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = val; 9200f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart } 9210f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return count; 9220f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 923ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, fast_io_fail_tmo, S_IRUGO | S_IWUSR, 9240f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart show_fc_rport_fast_io_fail_tmo, store_fc_rport_fast_io_fail_tmo); 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FC SCSI Target Attribute Management 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: in the target show function we recognize when the remote 933a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * port is in the heirarchy and do not allow the driver to get 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * involved in sysfs functions. The driver only gets involved if 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it's the "old" style that doesn't use rports. 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_show_function(field, format_string, sz, cast) \ 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 939ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_starget_##field (struct device *dev, \ 940ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 942ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct scsi_target *starget = transport_class_to_starget(dev); \ 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); \ 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = starget_to_rport(starget); \ 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport) \ 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_##field(starget) = rport->field; \ 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (i->f->get_starget_##field) \ 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_starget_##field(starget); \ 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, \ 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cast fc_starget_##field(starget)); \ 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_rd_attr(field, format_string, sz) \ 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_show_function(field, format_string, sz, ) \ 956ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(starget, field, S_IRUGO, \ 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_starget_##field, NULL) 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_rd_attr_cast(field, format_string, sz, cast) \ 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_show_function(field, format_string, sz, (cast)) \ 961ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(starget, field, S_IRUGO, \ 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_starget_##field, NULL) 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_STARGET_ATTRIBUTE_RD(field) \ 965ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_starget_attrs[count] = device_attr_starget_##field; \ 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].attr.mode = S_IRUGO; \ 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].store = NULL; \ 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = &i->private_starget_attrs[count]; \ 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_starget_##field) \ 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_STARGET_ATTRIBUTE_RW(field) \ 973ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_starget_attrs[count] = device_attr_starget_##field; \ 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_starget_##field) { \ 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].attr.mode = S_IRUGO; \ 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].store = NULL; \ 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = &i->private_starget_attrs[count]; \ 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_starget_##field) \ 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The FC Transport SCSI Target Attributes: */ 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr(port_id, "0x%06x\n", 20); 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 989a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * FC Virtual Port Attribute Management 990a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 991a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 992a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_show_function(field, format_string, sz, cast) \ 993a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 994ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##field (struct device *dev, \ 995ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 996a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 997ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 998a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); \ 999a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1000a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((i->f->get_vport_##field) && \ 1001a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart !(vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING))) \ 1002a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->get_vport_##field(vport); \ 1003a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, sz, format_string, cast vport->field); \ 1004a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1005a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1006a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_store_function(field) \ 1007a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1008ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1009ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1010ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1011a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1012a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int val; \ 1013ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1014a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); \ 1015a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1016a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *cp; \ 1017a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ 1018a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; \ 1019a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart val = simple_strtoul(buf, &cp, 0); \ 1020a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*cp && (*cp != '\n')) \ 1021a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1022a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->set_vport_##field(vport, val); \ 1023a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1024a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1025a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1026a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_store_str_function(field, slen) \ 1027a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1028ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1029ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1030ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1031a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1032ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1033a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); \ 1034a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1035a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; \ 1036a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart \ 1037a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ \ 1038a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') \ 1039a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; \ 1040a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (cnt > ((slen) - 1)) \ 1041a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1042a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memcpy(vport->field, buf, cnt); \ 1043a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->set_vport_##field(vport); \ 1044a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1045a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1046a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1047a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rd_attr(field, format_string, sz) \ 1048a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, ) \ 1049ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1050a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1051a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1052a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rd_attr_cast(field, format_string, sz, cast) \ 1053a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, (cast)) \ 1054ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1055a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1056a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1057a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rw_attr(field, format_string, sz) \ 1058a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, ) \ 1059a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_store_function(field) \ 1060ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ 1061a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, \ 1062a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_vport_##field) 1063a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1064a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_show_function(field, format_string, sz, cast) \ 1065a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1066ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##field (struct device *dev, \ 1067ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 1068a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1069ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1070a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, sz, format_string, cast vport->field); \ 1071a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1072a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1073a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_store_u32_function(field) \ 1074a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1075ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1076ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1077ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1078a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1079a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u32 val; \ 1080ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1081a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *cp; \ 1082a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ 1083a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; \ 1084a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart val = simple_strtoul(buf, &cp, 0); \ 1085a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*cp && (*cp != '\n')) \ 1086a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1087a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->field = val; \ 1088a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1089a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1090a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1091a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1092a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_attr(field, format_string, sz) \ 1093a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, ) \ 1094ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1095a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1096a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1097a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_attr_cast(field, format_string, sz, cast) \ 1098a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, (cast)) \ 1099ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1100a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1101a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1102a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rw_u32_attr(field, format_string, sz) \ 1103a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, ) \ 1104a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_store_u32_function(field) \ 1105ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ 1106a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, \ 1107a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_vport_##field) 1108a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1109a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1110a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_enum_attr(title, maxlen) \ 1111a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1112ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##title (struct device *dev, \ 1113ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1114ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) \ 1115a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1116ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1117a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart const char *name; \ 1118a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart name = get_fc_##title##_name(vport->title); \ 1119a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!name) \ 1120a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1121a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, maxlen, "%s\n", name); \ 1122a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} \ 1123ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, title, S_IRUGO, \ 1124a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##title, NULL) 1125a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1126a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1127a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_RD(field) \ 1128ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1129a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1130a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1131a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1132a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->get_##field) \ 1133a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1134a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: checks function not show bit */ 1135a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1136a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(field) \ 1137ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1138a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1139a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1140a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1141a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1142a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1143a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_WR(field) \ 1144ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1145a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1146a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->field) \ 1147a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1148a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: checks function */ 1149a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1150a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_RW(field) \ 1151ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1152a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!i->f->set_vport_##field) { \ 1153a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1154a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1155a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } \ 1156a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1157a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1158a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: does not check show bit */ 1159a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1160a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RW(field) \ 1161a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1162ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1163a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1164a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++; \ 1165a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1166a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1167a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1168a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* The FC Transport Virtual Port Attributes: */ 1169a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1170a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Fixed Virtual Port Attributes */ 1171a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1172a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Dynamic Virtual Port Attributes */ 1173a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1174a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Private Virtual Port Attributes */ 1175a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1176a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_state, FC_VPORTSTATE_MAX_NAMELEN); 1177a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_last_state, FC_VPORTSTATE_MAX_NAMELEN); 1178a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 1179a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 1180a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1181a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1182ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_roles (struct device *dev, struct device_attribute *attr, 1183ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) 1184a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1185ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 1186a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1187a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->roles == FC_PORT_ROLE_UNKNOWN) 1188a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, 20, "unknown\n"); 1189a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return get_fc_port_roles_names(vport->roles, buf); 1190a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1191ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, roles, S_IRUGO, show_fc_vport_roles, NULL); 1192a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1193a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_type, FC_PORTTYPE_MAX_NAMELEN); 1194a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1195a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_show_function(symbolic_name, "%s\n", 1196a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart FC_VPORT_SYMBOLIC_NAMELEN + 1, ) 1197a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_vport_store_str_function(symbolic_name, FC_VPORT_SYMBOLIC_NAMELEN) 1198ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, symbolic_name, S_IRUGO | S_IWUSR, 1199a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_symbolic_name, store_fc_vport_symbolic_name); 1200a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1201a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1202ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_delete(struct device *dev, struct device_attribute *attr, 1203ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1204a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1205ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 12069ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart struct Scsi_Host *shost = vport_to_shost(vport); 1207a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 12089ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart fc_queue_work(shost, &vport->vport_delete_work); 1209a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; 1210a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1211ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, vport_delete, S_IWUSR, 1212a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, store_fc_vport_delete); 1213a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1214a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1215a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1216a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Enable/Disable vport 1217a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Write "1" to disable, write "0" to enable 1218a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1219a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1220ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_disable(struct device *dev, struct device_attribute *attr, 1221ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, 1222a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size_t count) 1223a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1224ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 1225a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); 1226a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 1227a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 1228a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1229a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) 1230a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; 1231a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1232a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*buf == '0') { 1233a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->vport_state != FC_VPORT_DISABLED) 1234a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EALREADY; 1235a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else if (*buf == '1') { 1236a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->vport_state == FC_VPORT_DISABLED) 1237a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EALREADY; 1238a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else 1239a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1240a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1241a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = i->f->vport_disable(vport, ((*buf == '0') ? false : true)); 1242a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1243a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1244ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, vport_disable, S_IWUSR, 1245a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, store_fc_vport_disable); 1246a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1247a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1248a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Attribute Management 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_show_function(field, format_string, sz, cast) \ 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1254ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##field (struct device *dev, \ 1255ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1257ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_##field) \ 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_##field(shost); \ 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_store_function(field) \ 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1266ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_##field(struct device *dev, \ 1267ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1268ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; \ 1271ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 12730f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; \ 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 12750f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); \ 12760f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (*cp && (*cp != '\n')) \ 12770f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; \ 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->set_host_##field(shost, val); \ 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1282b8d08210126a7b769b857720a59721a453a57a1eJames Smart#define fc_host_store_str_function(field, slen) \ 1283b8d08210126a7b769b857720a59721a453a57a1eJames Smartstatic ssize_t \ 1284ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_##field(struct device *dev, \ 1285ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1286ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1287b8d08210126a7b769b857720a59721a453a57a1eJames Smart{ \ 1288ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 1289b8d08210126a7b769b857720a59721a453a57a1eJames Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1290b8d08210126a7b769b857720a59721a453a57a1eJames Smart unsigned int cnt=count; \ 1291b8d08210126a7b769b857720a59721a453a57a1eJames Smart \ 1292b8d08210126a7b769b857720a59721a453a57a1eJames Smart /* count may include a LF at end of string */ \ 1293b8d08210126a7b769b857720a59721a453a57a1eJames Smart if (buf[cnt-1] == '\n') \ 1294b8d08210126a7b769b857720a59721a453a57a1eJames Smart cnt--; \ 1295b8d08210126a7b769b857720a59721a453a57a1eJames Smart if (cnt > ((slen) - 1)) \ 1296b8d08210126a7b769b857720a59721a453a57a1eJames Smart return -EINVAL; \ 1297b8d08210126a7b769b857720a59721a453a57a1eJames Smart memcpy(fc_host_##field(shost), buf, cnt); \ 1298b8d08210126a7b769b857720a59721a453a57a1eJames Smart i->f->set_host_##field(shost); \ 1299b8d08210126a7b769b857720a59721a453a57a1eJames Smart return count; \ 1300b8d08210126a7b769b857720a59721a453a57a1eJames Smart} 1301b8d08210126a7b769b857720a59721a453a57a1eJames Smart 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_attr(field, format_string, sz) \ 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, ) \ 1304ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_attr_cast(field, format_string, sz, cast) \ 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, (cast)) \ 1309ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rw_attr(field, format_string, sz) \ 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, ) \ 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_store_function(field) \ 1315ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO | S_IWUSR, \ 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, \ 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_host_##field) 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_enum_attr(title, maxlen) \ 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1321ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##title (struct device *dev, \ 1322ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1324ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; \ 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_##title) \ 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_##title(shost); \ 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_##title##_name(fc_host_##title(shost)); \ 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) \ 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; \ 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, maxlen, "%s\n", name); \ 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 1334ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, title, S_IRUGO, show_fc_host_##title, NULL) 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_HOST_ATTRIBUTE_RD(field) \ 1337ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_host_##field) \ 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1344a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_HOST_ATTRIBUTE_RD_NS(field) \ 1345ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 1346a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_host_attrs[count].attr.mode = S_IRUGO; \ 1347a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_host_attrs[count].store = NULL; \ 1348a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->host_attrs[count] = &i->private_host_attrs[count]; \ 1349a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1350a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_HOST_ATTRIBUTE_RW(field) \ 1352ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_host_##field) { \ 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_host_##field) \ 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_show_function(field, format_string, sz, cast) \ 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1364ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##field (struct device *dev, \ 1365ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1367ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_rd_attr(field, format_string, sz) \ 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_host_show_function(field, format_string, sz, ) \ 1373ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_rd_attr_cast(field, format_string, sz, cast) \ 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_host_show_function(field, format_string, sz, (cast)) \ 1378ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_HOST_ATTRIBUTE_RD(field) \ 1382ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_HOST_ATTRIBUTE_RW(field) \ 138991ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez{ \ 1390ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 139291ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez count++; \ 139391ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez} 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Fixed Host Attributes */ 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1399ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_classes (struct device *dev, 1400ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1402ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_supported_classes(shost) == FC_COS_UNSPECIFIED) 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unspecified\n"); 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_cos_names(fc_host_supported_classes(shost), buf); 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1409ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_classes, S_IRUGO, 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_classes, NULL); 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1413ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_fc4s (struct device *dev, 1414ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1416ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ssize_t)show_fc_fc4s(buf, fc_host_supported_fc4s(shost)); 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1419ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_fc4s, S_IRUGO, 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_fc4s, NULL); 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1423ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_speeds (struct device *dev, 1424ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1426ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_supported_speeds(shost) == FC_PORTSPEED_UNKNOWN) 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_port_speed_names(fc_host_supported_speeds(shost), buf); 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1433ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_speeds, S_IRUGO, 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_speeds, NULL); 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 14396b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmannfc_private_host_rd_attr_cast(permanent_port_name, "0x%llx\n", 20, 14406b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmann unsigned long long); 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr(maxframe_size, "%u bytes\n", 20); 1442a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_host_rd_attr(max_npiv_vports, "%u\n", 20); 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr(serial_number, "%s\n", (FC_SERIAL_NUMBER_SIZE +1)); 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Dynamic Host Attributes */ 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1449ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_active_fc4s (struct device *dev, 1450ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1452ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_active_fc4s) 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_active_fc4s(shost); 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ssize_t)show_fc_fc4s(buf, fc_host_active_fc4s(shost)); 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1460ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, active_fc4s, S_IRUGO, 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_active_fc4s, NULL); 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1464ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_speed (struct device *dev, 1465ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1467ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_speed) 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_speed(shost); 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_speed(shost) == FC_PORTSPEED_UNKNOWN) 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_port_speed_names(fc_host_speed(shost), buf); 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1478ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, speed, S_IRUGO, 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_speed, NULL); 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_attr(port_id, "0x%06x\n", 20); 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_enum_attr(port_type, FC_PORTTYPE_MAX_NAMELEN); 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_attr_cast(fabric_name, "0x%llx\n", 20, unsigned long long); 1486016131b8fffa1085b4ad165ab228116fdc278ebeJames Smartfc_host_rd_attr(symbolic_name, "%s\n", FC_SYMBOLIC_NAME_SIZE + 1); 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1488b8d08210126a7b769b857720a59721a453a57a1eJames Smartfc_private_host_show_function(system_hostname, "%s\n", 1489b8d08210126a7b769b857720a59721a453a57a1eJames Smart FC_SYMBOLIC_NAME_SIZE + 1, ) 1490b8d08210126a7b769b857720a59721a453a57a1eJames Smartfc_host_store_str_function(system_hostname, FC_SYMBOLIC_NAME_SIZE) 1491ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, system_hostname, S_IRUGO | S_IWUSR, 1492b8d08210126a7b769b857720a59721a453a57a1eJames Smart show_fc_host_system_hostname, store_fc_host_system_hostname); 1493b8d08210126a7b769b857720a59721a453a57a1eJames Smart 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Private Host Attributes */ 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1498ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_private_host_tgtid_bind_type(struct device *dev, 1499ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1501ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_tgtid_bind_type_name(fc_host_tgtid_bind_type(shost)); 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, FC_BINDTYPE_MAX_NAMELEN, "%s\n", name); 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1510d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com#define get_list_head_entry(pos, head, member) \ 1511d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com pos = list_entry((head)->next, typeof(*pos), member) 1512d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1514ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_private_host_tgtid_bind_type(struct device *dev, 1515ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, size_t count) 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1517ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1518d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com struct fc_rport *rport; 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_tgtid_binding_type val; 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (get_fc_tgtid_bind_type_match(buf, &val)) 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* if changing bind type, purge all unused consistent bindings */ 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != fc_host_tgtid_bind_type(shost)) { 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 1528d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com while (!list_empty(&fc_host_rport_bindings(shost))) { 1529d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com get_list_head_entry(rport, 1530d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com &fc_host_rport_bindings(shost), peers); 1531aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 1532aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 1533aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 1534d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com } 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_tgtid_bind_type(shost) = val; 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1542ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, tgtid_bind_type, S_IRUGO | S_IWUSR, 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_private_host_tgtid_bind_type, 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_private_host_tgtid_bind_type); 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 154691ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquezstatic ssize_t 1547ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_private_host_issue_lip(struct device *dev, 1548ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, size_t count) 154991ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez{ 1550ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 155191ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez struct fc_internal *i = to_fc_internal(shost->transportt); 155291ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez int ret; 155391ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 155491ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez /* ignore any data value written to the attribute */ 155591ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez if (i->f->issue_fc_host_lip) { 155691ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez ret = i->f->issue_fc_host_lip(shost); 155791ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez return ret ? ret: count; 155891ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez } 155991ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 156091ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez return -ENOENT; 156191ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez} 156291ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 1563ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, issue_lip, S_IWUSR, NULL, 156491ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez store_fc_private_host_issue_lip); 156591ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 1566a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_host_rd_attr(npiv_vports_inuse, "%u\n", 20); 1567a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1568a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Statistics Management 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Show a given an attribute in the statistics group */ 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1575ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesfc_stat_show(const struct device *dev, char *buf, unsigned long offset) 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1577ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_host_statistics *stats; 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssize_t ret = -ENOENT; 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offset > sizeof(struct fc_host_statistics) || 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset % sizeof(u64) != 0) 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds WARN_ON(1); 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_fc_host_stats) { 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stats = (i->f->get_fc_host_stats)(shost); 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (stats) 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = snprintf(buf, 20, "0x%llx\n", 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long long)*(u64 *)(((u8 *) stats) + offset)); 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* generate a read-only statistics attribute */ 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_statistic(name) \ 1598ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic ssize_t show_fcstat_##name(struct device *cd, \ 1599ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1600ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) \ 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fc_stat_show(cd, buf, \ 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offsetof(struct fc_host_statistics, name)); \ 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 1605ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, name, S_IRUGO, show_fcstat_##name, NULL) 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(seconds_since_last_reset); 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(tx_frames); 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(tx_words); 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(rx_frames); 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(rx_words); 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(lip_count); 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(nos_count); 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(error_frames); 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(dumped_frames); 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(link_failure_count); 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(loss_of_sync_count); 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(loss_of_signal_count); 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(prim_seq_protocol_err_count); 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(invalid_tx_word_count); 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(invalid_crc_count); 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_input_requests); 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_output_requests); 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_control_requests); 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_input_megabytes); 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_output_megabytes); 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1629ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesfc_reset_statistics(struct device *dev, struct device_attribute *attr, 1630ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1632ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* ignore any data value written to the attribute */ 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->reset_fc_host_stats) { 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->reset_fc_host_stats(shost); 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOENT; 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1643ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, reset_statistics, S_IWUSR, NULL, 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_reset_statistics); 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct attribute *fc_statistics_attrs[] = { 1647ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_seconds_since_last_reset.attr, 1648ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_tx_frames.attr, 1649ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_tx_words.attr, 1650ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_rx_frames.attr, 1651ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_rx_words.attr, 1652ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_lip_count.attr, 1653ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_nos_count.attr, 1654ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_error_frames.attr, 1655ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_dumped_frames.attr, 1656ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_link_failure_count.attr, 1657ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_loss_of_sync_count.attr, 1658ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_loss_of_signal_count.attr, 1659ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_prim_seq_protocol_err_count.attr, 1660ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_invalid_tx_word_count.attr, 1661ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_invalid_crc_count.attr, 1662ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_input_requests.attr, 1663ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_output_requests.attr, 1664ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_control_requests.attr, 1665ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_input_megabytes.attr, 1666ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_output_megabytes.attr, 1667ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_reset_statistics.attr, 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct attribute_group fc_statistics_group = { 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "statistics", 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .attrs = fc_statistics_attrs, 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1676a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1677a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Host Vport Attributes */ 1678a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1679a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int 1680a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_parse_wwn(const char *ns, u64 *nm) 1681a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1682a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int i, j; 1683a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u8 wwn[8]; 1684a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1685a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memset(wwn, 0, sizeof(wwn)); 1686a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1687a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* Validate and store the new name */ 1688a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart for (i=0, j=0; i < 16; i++) { 1689a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((*ns >= 'a') && (*ns <= 'f')) 1690a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart j = ((j << 4) | ((*ns++ -'a') + 10)); 1691a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else if ((*ns >= 'A') && (*ns <= 'F')) 1692a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart j = ((j << 4) | ((*ns++ -'A') + 10)); 1693a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else if ((*ns >= '0') && (*ns <= '9')) 1694a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart j = ((j << 4) | (*ns++ -'0')); 1695a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else 1696a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1697a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i % 2) { 1698a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart wwn[i/2] = j & 0xff; 1699a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart j = 0; 1700a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1701a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1702a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1703a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *nm = wwn_to_u64(wwn); 1704a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1705a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 1706a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1707a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1708a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1709a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1710a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * "Short-cut" sysfs variable to create a new vport on a FC Host. 1711a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Input is a string of the form "<WWPN>:<WWNN>". Other attributes 1712a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * will default to a NPIV-based FCP_Initiator; The WWNs are specified 1713a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * as hex characters, and may *not* contain any prefixes (e.g. 0x, x, etc) 1714a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1715a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1716ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_vport_create(struct device *dev, struct device_attribute *attr, 1717ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1718a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1719ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1720a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport_identifiers vid; 1721a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 1722a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; 1723a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 1724a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1725a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memset(&vid, 0, sizeof(vid)); 1726a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1727a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ 1728a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') 1729a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; 1730a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1731a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* validate we have enough characters for WWPN */ 1732a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((cnt != (16+1+16)) || (buf[16] != ':')) 1733a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1734a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1735a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[0], &vid.port_name); 1736a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1737a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1738a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1739a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[17], &vid.node_name); 1740a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1741a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1742a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1743a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.roles = FC_PORT_ROLE_FCP_INITIATOR; 1744a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.vport_type = FC_PORTTYPE_NPIV; 1745a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* vid.symbolic_name is already zero/NULL's */ 1746a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.disable = false; /* always enabled */ 1747a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1748a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* we only allow support on Channel 0 !!! */ 1749a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez stat = fc_vport_setup(shost, 0, &shost->shost_gendev, &vid, &vport); 1750a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1751a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1752ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, vport_create, S_IWUSR, NULL, 1753a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_host_vport_create); 1754a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1755a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1756a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1757a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * "Short-cut" sysfs variable to delete a vport on a FC Host. 1758a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Vport is identified by a string containing "<WWPN>:<WWNN>". 1759a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * The WWNs are specified as hex characters, and may *not* contain 1760a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * any prefixes (e.g. 0x, x, etc) 1761a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1762a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1763ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_vport_delete(struct device *dev, struct device_attribute *attr, 1764ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1765a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1766ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1767a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 1768a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 1769a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u64 wwpn, wwnn; 1770a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 1771a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; 1772a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat, match; 1773a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1774a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ 1775a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') 1776a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; 1777a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1778a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* validate we have enough characters for WWPN */ 1779a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((cnt != (16+1+16)) || (buf[16] != ':')) 1780a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1781a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1782a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[0], &wwpn); 1783a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1784a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1785a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1786a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[17], &wwnn); 1787a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1788a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1789a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1790a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 1791a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart match = 0; 1792a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* we only allow support on Channel 0 !!! */ 1793a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_for_each_entry(vport, &fc_host->vports, peers) { 1794a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((vport->channel == 0) && 1795a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart (vport->port_name == wwpn) && (vport->node_name == wwnn)) { 1796a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart match = 1; 1797a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart break; 1798a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1799a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1800a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 1801a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1802a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!match) 1803a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENODEV; 1804a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1805a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_vport_terminate(vport); 1806a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1807a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1808ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, vport_delete, S_IWUSR, NULL, 1809a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_host_vport_delete); 1810a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1811a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_host_match(struct attribute_container *cont, 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_host_device(dev)) 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev); 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t.host_attrs.ac == cont; 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_target_match(struct attribute_container *cont, 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_target_device(dev)) 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev->parent); 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t.target_attrs.ac == cont; 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fc_rport_dev_release(struct device *dev) 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = dev_to_rport(dev); 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(dev->parent); 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(rport); 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint scsi_is_fc_rport(const struct device *dev) 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return dev->release == fc_rport_dev_release; 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(scsi_is_fc_rport); 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_rport_match(struct attribute_container *cont, 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_fc_rport(dev)) 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev->parent); 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->rport_attr_cont.ac == cont; 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18825c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 1883a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic void fc_vport_dev_release(struct device *dev) 1884a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1885a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport = dev_to_vport(dev); 1886a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev->parent); /* release kobj parent */ 1887a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 1888a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1889a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1890a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartint scsi_is_fc_vport(const struct device *dev) 1891a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1892a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return dev->release == fc_vport_dev_release; 1893a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1894a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James SmartEXPORT_SYMBOL(scsi_is_fc_vport); 1895a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1896a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int fc_vport_match(struct attribute_container *cont, 1897a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev) 1898a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1899a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 1900a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost; 1901a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i; 1902a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1903a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!scsi_is_fc_vport(dev)) 1904a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 1905a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport = dev_to_vport(dev); 1906a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1907a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart shost = vport_to_shost(vport); 1908a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!shost->transportt || shost->transportt->host_attrs.ac.class 1909a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart != &fc_host_class.class) 1910a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 1911a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1912a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i = to_fc_internal(shost->transportt); 1913a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return &i->vport_attr_cont.ac == cont; 1914a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1915a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1916a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1917c829c394165f981d49f05a9be228404d7a9398d4James Smart/** 1918c829c394165f981d49f05a9be228404d7a9398d4James Smart * fc_timed_out - FC Transport I/O timeout intercept handler 1919c829c394165f981d49f05a9be228404d7a9398d4James Smart * @scmd: The SCSI command which timed out 1920c829c394165f981d49f05a9be228404d7a9398d4James Smart * 1921c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine protects against error handlers getting invoked while a 1922c829c394165f981d49f05a9be228404d7a9398d4James Smart * rport is in a blocked state, typically due to a temporarily loss of 1923c829c394165f981d49f05a9be228404d7a9398d4James Smart * connectivity. If the error handlers are allowed to proceed, requests 1924c829c394165f981d49f05a9be228404d7a9398d4James Smart * to abort i/o, reset the target, etc will likely fail as there is no way 1925c829c394165f981d49f05a9be228404d7a9398d4James Smart * to communicate with the device to perform the requested function. These 1926c829c394165f981d49f05a9be228404d7a9398d4James Smart * failures may result in the midlayer taking the device offline, requiring 1927c829c394165f981d49f05a9be228404d7a9398d4James Smart * manual intervention to restore operation. 1928c829c394165f981d49f05a9be228404d7a9398d4James Smart * 1929c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine, called whenever an i/o times out, validates the state of 1930c829c394165f981d49f05a9be228404d7a9398d4James Smart * the underlying rport. If the rport is blocked, it returns 1931c829c394165f981d49f05a9be228404d7a9398d4James Smart * EH_RESET_TIMER, which will continue to reschedule the timeout. 1932c829c394165f981d49f05a9be228404d7a9398d4James Smart * Eventually, either the device will return, or devloss_tmo will fire, 1933c829c394165f981d49f05a9be228404d7a9398d4James Smart * and when the timeout then fires, it will be handled normally. 1934c829c394165f981d49f05a9be228404d7a9398d4James Smart * If the rport is not blocked, normal error handling continues. 1935c829c394165f981d49f05a9be228404d7a9398d4James Smart * 1936c829c394165f981d49f05a9be228404d7a9398d4James Smart * Notes: 1937c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine assumes no locks are held on entry. 1938eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 1939242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboestatic enum blk_eh_timer_return 1940c829c394165f981d49f05a9be228404d7a9398d4James Smartfc_timed_out(struct scsi_cmnd *scmd) 1941c829c394165f981d49f05a9be228404d7a9398d4James Smart{ 1942c829c394165f981d49f05a9be228404d7a9398d4James Smart struct fc_rport *rport = starget_to_rport(scsi_target(scmd->device)); 1943c829c394165f981d49f05a9be228404d7a9398d4James Smart 1944c829c394165f981d49f05a9be228404d7a9398d4James Smart if (rport->port_state == FC_PORTSTATE_BLOCKED) 1945242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboe return BLK_EH_RESET_TIMER; 1946c829c394165f981d49f05a9be228404d7a9398d4James Smart 1947242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboe return BLK_EH_NOT_HANDLED; 1948c829c394165f981d49f05a9be228404d7a9398d4James Smart} 1949c829c394165f981d49f05a9be228404d7a9398d4James Smart 19505c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com/* 1951bda232531f0c117921690ee3c060953c8f12e5a1James Smart * Called by fc_user_scan to locate an rport on the shost that 1952bda232531f0c117921690ee3c060953c8f12e5a1James Smart * matches the channel and target id, and invoke scsi_scan_target() 1953bda232531f0c117921690ee3c060953c8f12e5a1James Smart * on the rport. 19545c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com */ 1955bda232531f0c117921690ee3c060953c8f12e5a1James Smartstatic void 1956bda232531f0c117921690ee3c060953c8f12e5a1James Smartfc_user_scan_tgt(struct Scsi_Host *shost, uint channel, uint id, uint lun) 19575c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com{ 19585c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com struct fc_rport *rport; 1959bda232531f0c117921690ee3c060953c8f12e5a1James Smart unsigned long flags; 1960bda232531f0c117921690ee3c060953c8f12e5a1James Smart 1961bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_lock_irqsave(shost->host_lock, flags); 19625c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 1963e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig list_for_each_entry(rport, &fc_host_rports(shost), peers) { 1964e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig if (rport->scsi_target_id == -1) 1965e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig continue; 19665c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 19670d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke if (rport->port_state != FC_PORTSTATE_ONLINE) 19680d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke continue; 19690d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke 1970bda232531f0c117921690ee3c060953c8f12e5a1James Smart if ((channel == rport->channel) && 1971bda232531f0c117921690ee3c060953c8f12e5a1James Smart (id == rport->scsi_target_id)) { 1972bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_unlock_irqrestore(shost->host_lock, flags); 1973bda232531f0c117921690ee3c060953c8f12e5a1James Smart scsi_scan_target(&rport->dev, channel, id, lun, 1); 1974bda232531f0c117921690ee3c060953c8f12e5a1James Smart return; 1975e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig } 1976e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig } 1977e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig 1978bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_unlock_irqrestore(shost->host_lock, flags); 1979bda232531f0c117921690ee3c060953c8f12e5a1James Smart} 1980bda232531f0c117921690ee3c060953c8f12e5a1James Smart 1981bda232531f0c117921690ee3c060953c8f12e5a1James Smart/* 1982bda232531f0c117921690ee3c060953c8f12e5a1James Smart * Called via sysfs scan routines. Necessary, as the FC transport 1983bda232531f0c117921690ee3c060953c8f12e5a1James Smart * wants to place all target objects below the rport object. So this 1984bda232531f0c117921690ee3c060953c8f12e5a1James Smart * routine must invoke the scsi_scan_target() routine with the rport 1985bda232531f0c117921690ee3c060953c8f12e5a1James Smart * object as the parent. 1986bda232531f0c117921690ee3c060953c8f12e5a1James Smart */ 1987bda232531f0c117921690ee3c060953c8f12e5a1James Smartstatic int 1988bda232531f0c117921690ee3c060953c8f12e5a1James Smartfc_user_scan(struct Scsi_Host *shost, uint channel, uint id, uint lun) 1989bda232531f0c117921690ee3c060953c8f12e5a1James Smart{ 1990bda232531f0c117921690ee3c060953c8f12e5a1James Smart uint chlo, chhi; 1991bda232531f0c117921690ee3c060953c8f12e5a1James Smart uint tgtlo, tgthi; 1992bda232531f0c117921690ee3c060953c8f12e5a1James Smart 1993bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) || 1994bda232531f0c117921690ee3c060953c8f12e5a1James Smart ((id != SCAN_WILD_CARD) && (id >= shost->max_id)) || 1995bda232531f0c117921690ee3c060953c8f12e5a1James Smart ((lun != SCAN_WILD_CARD) && (lun > shost->max_lun))) 1996bda232531f0c117921690ee3c060953c8f12e5a1James Smart return -EINVAL; 1997bda232531f0c117921690ee3c060953c8f12e5a1James Smart 1998bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (channel == SCAN_WILD_CARD) { 1999bda232531f0c117921690ee3c060953c8f12e5a1James Smart chlo = 0; 2000bda232531f0c117921690ee3c060953c8f12e5a1James Smart chhi = shost->max_channel + 1; 2001bda232531f0c117921690ee3c060953c8f12e5a1James Smart } else { 2002bda232531f0c117921690ee3c060953c8f12e5a1James Smart chlo = channel; 2003bda232531f0c117921690ee3c060953c8f12e5a1James Smart chhi = channel + 1; 2004bda232531f0c117921690ee3c060953c8f12e5a1James Smart } 2005bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2006bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (id == SCAN_WILD_CARD) { 2007bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgtlo = 0; 2008bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgthi = shost->max_id; 2009bda232531f0c117921690ee3c060953c8f12e5a1James Smart } else { 2010bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgtlo = id; 2011bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgthi = id + 1; 2012bda232531f0c117921690ee3c060953c8f12e5a1James Smart } 2013bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2014bda232531f0c117921690ee3c060953c8f12e5a1James Smart for ( ; chlo < chhi; chlo++) 2015bda232531f0c117921690ee3c060953c8f12e5a1James Smart for ( ; tgtlo < tgthi; tgtlo++) 2016bda232531f0c117921690ee3c060953c8f12e5a1James Smart fc_user_scan_tgt(shost, chlo, tgtlo, lun); 2017bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2018e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig return 0; 20195c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com} 20205c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 20217525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonoristatic int fc_tsk_mgmt_response(struct Scsi_Host *shost, u64 nexus, u64 tm_id, 20227525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori int result) 20237525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori{ 20247525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori struct fc_internal *i = to_fc_internal(shost->transportt); 20257525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori return i->f->tsk_mgmt_response(shost, nexus, tm_id, result); 20267525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori} 20277525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 20287525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonoristatic int fc_it_nexus_response(struct Scsi_Host *shost, u64 nexus, int result) 20297525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori{ 20307525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori struct fc_internal *i = to_fc_internal(shost->transportt); 20317525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori return i->f->it_nexus_response(shost, nexus, result); 20327525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori} 20337525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 20341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct scsi_transport_template * 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_attach_transport(struct fc_function_template *ft) 20361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int count; 203824669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen struct fc_internal *i = kzalloc(sizeof(struct fc_internal), 203924669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen GFP_KERNEL); 20401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!i)) 20421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.attrs = &i->starget_attrs[0]; 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.class = &fc_transport_class.class; 20461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.match = fc_target_match; 20471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_size = sizeof(struct fc_starget_attrs); 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->t.target_attrs); 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.attrs = &i->host_attrs[0]; 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.class = &fc_host_class.class; 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.match = fc_host_match; 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_size = sizeof(struct fc_host_attrs); 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ft->get_fc_host_stats) 20551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.statistics = &fc_statistics_group; 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->t.host_attrs); 20571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.attrs = &i->rport_attrs[0]; 20591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.class = &fc_rport_class.class; 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.match = fc_rport_match; 20611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->rport_attr_cont); 20621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2063a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.attrs = &i->vport_attrs[0]; 2064a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.class = &fc_vport_class.class; 2065a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.match = fc_vport_match; 2066a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_container_register(&i->vport_attr_cont); 2067a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 20681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f = ft; 20691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Transport uses the shost workq for scsi scanning */ 20711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.create_work_queue = 1; 20725c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 2073c829c394165f981d49f05a9be228404d7a9398d4James Smart i->t.eh_timed_out = fc_timed_out; 2074c829c394165f981d49f05a9be228404d7a9398d4James Smart 2075e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig i->t.user_scan = fc_user_scan; 20769ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 20777525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori /* target-mode drivers' functions */ 20787525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori i->t.tsk_mgmt_response = fc_tsk_mgmt_response; 20797525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori i->t.it_nexus_response = fc_it_nexus_response; 20807525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup SCSI Target Attributes. 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = 0; 20851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(node_name); 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(port_name); 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(port_id); 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_STARGET_NUM_ATTRS); 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = NULL; 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup SCSI Host Attributes. 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count=0; 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(node_name); 20991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_name); 21006b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmann SETUP_HOST_ATTRIBUTE_RD(permanent_port_name); 21011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_classes); 21021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_fc4s); 21031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_speeds); 21041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(maxframe_size); 2105a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_create) { 2106a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_HOST_ATTRIBUTE_RD_NS(max_npiv_vports); 2107a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_HOST_ATTRIBUTE_RD_NS(npiv_vports_inuse); 2108a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 21091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(serial_number); 21101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_id); 21121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_type); 21131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_state); 21141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(active_fc4s); 21151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(speed); 21161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(fabric_name); 2117016131b8fffa1085b4ad165ab228116fdc278ebeJames Smart SETUP_HOST_ATTRIBUTE_RD(symbolic_name); 2118b8d08210126a7b769b857720a59721a453a57a1eJames Smart SETUP_HOST_ATTRIBUTE_RW(system_hostname); 21191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Transport-managed attributes */ 21211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_HOST_ATTRIBUTE_RW(tgtid_bind_type); 212291ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez if (ft->issue_fc_host_lip) 212391ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez SETUP_PRIVATE_HOST_ATTRIBUTE_RW(issue_lip); 2124a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_create) 2125a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_create); 2126a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_delete) 2127a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_delete); 21281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_HOST_NUM_ATTRS); 21301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = NULL; 21321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 21341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup Remote Port Attributes. 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count=0; 21371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RD(maxframe_size); 21381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RD(supported_classes); 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RW(dev_loss_tmo); 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(node_name); 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_name); 21421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_id); 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(roles); 21441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_state); 21451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(scsi_target_id); 2146fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo); 21471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_RPORT_NUM_ATTRS); 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = NULL; 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2152a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 2153a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Setup Virtual Port Attributes. 2154a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 2155a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count=0; 2156a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_state); 2157a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_last_state); 2158a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(node_name); 2159a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(port_name); 2160a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(roles); 2161a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_type); 2162a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_RW(symbolic_name); 2163a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_WR(vport_delete); 2164a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_WR(vport_disable); 2165a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2166a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart BUG_ON(count > FC_VPORT_NUM_ATTRS); 2167a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2168a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = NULL; 2169a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t; 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_attach_transport); 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid fc_release_transport(struct scsi_transport_template *t) 21751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(t); 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->t.target_attrs); 21791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->t.host_attrs); 21801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->rport_attr_cont); 2181a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_container_unregister(&i->vport_attr_cont); 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(i); 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_release_transport); 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2187aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2188aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_queue_work - Queue work to the fc_host workqueue. 2189aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2190aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @work: Work to queue for execution. 2191aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2192aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * Return value: 2193a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * 1 - work queued for execution 2194a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * 0 - work is already queued 2195a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * -EINVAL - work queue doesn't exist 2196eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2197aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int 2198aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_queue_work(struct Scsi_Host *shost, struct work_struct *work) 2199aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2200aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (unlikely(!fc_host_work_q(shost))) { 2201aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2202aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to queue work, " 2203aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2204aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2205aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2206aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -EINVAL; 2207aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2208aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2209aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return queue_work(fc_host_work_q(shost), work); 2210aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2211aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2212aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2213aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_flush_work - Flush a fc_host's workqueue. 2214aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2215eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2216aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2217aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_flush_work(struct Scsi_Host *shost) 2218aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2219aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host_work_q(shost)) { 2220aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2221aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to flush work, " 2222aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2223aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2224aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return; 2225aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2226aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2227aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart flush_workqueue(fc_host_work_q(shost)); 2228aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2229aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2230aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2231aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_queue_devloss_work - Schedule work for the fc_host devloss workqueue. 2232aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2233aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @work: Work to queue for execution. 2234aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @delay: jiffies to delay the work queuing 2235aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2236aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * Return value: 22370f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * 1 on success / 0 already queued / < 0 for error 2238eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2239aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int 2240c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_queue_devloss_work(struct Scsi_Host *shost, struct delayed_work *work, 2241aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart unsigned long delay) 2242aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2243aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (unlikely(!fc_host_devloss_work_q(shost))) { 2244aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2245aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to queue work, " 2246aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2247aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2248aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2249aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -EINVAL; 2250aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2251aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2252aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return queue_delayed_work(fc_host_devloss_work_q(shost), work, delay); 2253aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2254aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2255aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2256aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_flush_devloss - Flush a fc_host's devloss workqueue. 2257aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2258eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2259aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2260aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_flush_devloss(struct Scsi_Host *shost) 2261aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2262aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host_devloss_work_q(shost)) { 2263aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2264aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to flush work, " 2265aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2266aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2267aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return; 2268aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2269aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2270aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart flush_workqueue(fc_host_devloss_work_q(shost)); 2271aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2272aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 22731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2275eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remove_host - called to terminate any fc_transport-related elements for a scsi host. 2276eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @shost: Which &Scsi_Host 22771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 22781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is expected to be called immediately preceeding the 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a driver's call to scsi_remove_host(). 22801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 22811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * WARNING: A driver utilizing the fc_transport, which fails to call 2282eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * this routine prior to scsi_remove_host(), will leave dangling 22831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * objects in /sys/class/fc_remote_ports. Access to any of these 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * objects can result in a system crash !!! 22851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 22861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 22871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2288eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 22891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 22901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remove_host(struct Scsi_Host *shost) 22911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2292a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport = NULL, *next_vport = NULL; 2293a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_rport *rport = NULL, *next_rport = NULL; 2294aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct workqueue_struct *work_q; 2295aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 2296a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 2297a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2298a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 2299a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2300a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* Remove any vports */ 23019ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers) 23029ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart fc_queue_work(shost, &vport->vport_delete_work); 23031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Remove any remote ports */ 23051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry_safe(rport, next_rport, 2306aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart &fc_host->rports, peers) { 2307aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 2308aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 2309aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 2310aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2311aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 23121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry_safe(rport, next_rport, 2313aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart &fc_host->rport_bindings, peers) { 2314aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 2315aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 2316aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 2317aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2318aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2319a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 2320a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2321aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all scan work items */ 2322aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_flush_work(shost); 2323aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2324aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all stgt delete, and rport delete work items, then kill it */ 2325aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->work_q) { 2326aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart work_q = fc_host->work_q; 2327aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q = NULL; 2328aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(work_q); 2329aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2330aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2331aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all devloss work items, then kill it */ 2332aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->devloss_work_q) { 2333aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart work_q = fc_host->devloss_work_q; 2334aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->devloss_work_q = NULL; 2335aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(work_q); 2336aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 23371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remove_host); 23391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2340fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christiestatic void fc_terminate_rport_io(struct fc_rport *rport) 2341fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie{ 2342fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie struct Scsi_Host *shost = rport_to_shost(rport); 2343fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie struct fc_internal *i = to_fc_internal(shost->transportt); 2344fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie 2345fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie /* Involve the LLDD if possible to terminate all io on the rport. */ 2346fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie if (i->f->terminate_rport_io) 2347fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie i->f->terminate_rport_io(rport); 2348fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie 2349fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie /* 2350fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie * must unblock to flush queued IO. The caller will have set 2351fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie * the port_state or flags, so that fc_remote_port_chkready will 2352fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie * fail IO. 2353fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie */ 2354fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie scsi_target_unblock(&rport->dev); 2355fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie} 2356aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2357aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2358aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_starget_delete - called to delete the scsi decendents of an rport 2359c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be operated on. 2360eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 2361eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Deletes target and all sdevs. 2362eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 236319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Comstatic void 2364c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_starget_delete(struct work_struct *work) 236519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com{ 2366c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 2367c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, stgt_delete_work); 236819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2369fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie fc_terminate_rport_io(rport); 237019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com scsi_remove_target(&rport->dev); 237119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com} 237219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2373aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2374aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2375aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_rport_final_delete - finish rport termination and delete it. 2376c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be deleted. 2377eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2378aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2379c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_rport_final_delete(struct work_struct *work) 2380aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2381c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 2382c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, rport_delete_work); 2383aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct device *dev = &rport->dev; 2384aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 23850f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 238692740b24ce6ddac6534fae985aab602548692186James Smart unsigned long flags; 2387aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2388aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* 23899ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * if a scan is pending, flush the SCSI Host work_q so that 2390aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * that we can reclaim the rport scan work element. 2391aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart */ 2392aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (rport->flags & FC_RPORT_SCAN_PENDING) 2393aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_flush_work(shost); 2394aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2395fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie fc_terminate_rport_io(rport); 23969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 239792740b24ce6ddac6534fae985aab602548692186James Smart /* 239892740b24ce6ddac6534fae985aab602548692186James Smart * Cancel any outstanding timers. These should really exist 239992740b24ce6ddac6534fae985aab602548692186James Smart * only when rmmod'ing the LLDD and we're asking for 240092740b24ce6ddac6534fae985aab602548692186James Smart * immediate termination of the rports 240192740b24ce6ddac6534fae985aab602548692186James Smart */ 240292740b24ce6ddac6534fae985aab602548692186James Smart spin_lock_irqsave(shost->host_lock, flags); 240392740b24ce6ddac6534fae985aab602548692186James Smart if (rport->flags & FC_RPORT_DEVLOSS_PENDING) { 240492740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, flags); 240592740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 240692740b24ce6ddac6534fae985aab602548692186James Smart fc_flush_devloss(shost); 240792740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->dev_loss_work)) 240892740b24ce6ddac6534fae985aab602548692186James Smart fc_flush_devloss(shost); 240992740b24ce6ddac6534fae985aab602548692186James Smart spin_lock_irqsave(shost->host_lock, flags); 241092740b24ce6ddac6534fae985aab602548692186James Smart rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; 241192740b24ce6ddac6534fae985aab602548692186James Smart } 241292740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, flags); 241392740b24ce6ddac6534fae985aab602548692186James Smart 24140f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart /* Delete SCSI target and sdevs */ 24150f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->scsi_target_id != -1) 2416c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells fc_starget_delete(&rport->stgt_delete_work); 241792740b24ce6ddac6534fae985aab602548692186James Smart 241892740b24ce6ddac6534fae985aab602548692186James Smart /* 241992740b24ce6ddac6534fae985aab602548692186James Smart * Notify the driver that the rport is now dead. The LLDD will 242092740b24ce6ddac6534fae985aab602548692186James Smart * also guarantee that any communication to the rport is terminated 24214be98c0ca304c8a47998b29a7993664f71791250James Smart * 24224be98c0ca304c8a47998b29a7993664f71791250James Smart * Avoid this call if we already called it when we preserved the 24234be98c0ca304c8a47998b29a7993664f71791250James Smart * rport for the binding. 242492740b24ce6ddac6534fae985aab602548692186James Smart */ 24254be98c0ca304c8a47998b29a7993664f71791250James Smart if (!(rport->flags & FC_RPORT_DEVLOSS_CALLBK_DONE) && 24264be98c0ca304c8a47998b29a7993664f71791250James Smart (i->f->dev_loss_tmo_callbk)) 24270f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart i->f->dev_loss_tmo_callbk(rport); 24280f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 24299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_remove(rport->rqst_q); 24309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 2431aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart transport_remove_device(dev); 2432aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart device_del(dev); 2433aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart transport_destroy_device(dev); 24343bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(&shost->shost_gendev); /* for fc_host->rport list */ 24353bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(dev); /* for self-reference */ 2436aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2437aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2438aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 24391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 24401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_rport_create - allocates and creates a remote FC port. 24411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @shost: scsi host the remote port is connected to. 24421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @channel: Channel on shost port connected to. 24431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ids: The world wide names, fc address, and FC4 port 24441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * roles for the remote port. 24451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 24461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Allocates and creates the remoter port structure, including the 24471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * class and sysfs creation. 24481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 24491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 24501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2451eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 245244818efbad185eea75adad0e8cab97650a7370abAdrian Bunkstatic struct fc_rport * 24531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_rport_create(struct Scsi_Host *shost, int channel, 24541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport_identifiers *ids) 24551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2456aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 24571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *fci = to_fc_internal(shost->transportt); 24581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport; 24591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev; 24601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 24611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 24621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t size; 24631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size = (sizeof(struct fc_rport) + fci->f->dd_fcrport_size); 246524669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen rport = kzalloc(size, GFP_KERNEL); 24661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!rport)) { 2467cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison printk(KERN_ERR "%s: allocation failure\n", __func__); 24681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 24691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->maxframe_size = -1; 24721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->supported_classes = FC_COS_UNSPECIFIED; 24731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->dev_loss_tmo = fc_dev_loss_tmo; 24741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->node_name, &ids->node_name, sizeof(rport->node_name)); 24751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->port_name, &ids->port_name, sizeof(rport->port_name)); 24761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = ids->port_id; 24771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = ids->roles; 24781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_ONLINE; 24791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fci->f->dd_fcrport_size) 24801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->dd_data = &rport[1]; 24811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->channel = channel; 24820f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = -1; 24831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2484c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_DELAYED_WORK(&rport->dev_loss_work, fc_timeout_deleted_rport); 2485c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_DELAYED_WORK(&rport->fail_io_work, fc_timeout_fail_rport_io); 2486c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->scan_work, fc_scsi_scan_rport); 2487c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->stgt_delete_work, fc_starget_delete); 2488c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->rport_delete_work, fc_rport_final_delete); 24891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 24911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->number = fc_host->next_rport_number++; 2493a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles & FC_PORT_ROLE_FCP_TARGET) 24941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->scsi_target_id = fc_host->next_target_id++; 24951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 24961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->scsi_target_id = -1; 2497aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_add_tail(&rport->peers, &fc_host->rports); 24983bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart get_device(&shost->shost_gendev); /* for fc_host->rport list */ 24991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 25011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev = &rport->dev; 25033bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart device_initialize(dev); /* takes self reference */ 25043bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart dev->parent = get_device(&shost->shost_gendev); /* parent reference */ 25051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->release = fc_rport_dev_release; 250671610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_set_name(dev, "rport-%d:%d-%d", 250771610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers shost->host_no, channel, rport->number); 25081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_setup_device(dev); 25091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = device_add(dev); 25111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) { 25121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "FC Remote Port device_add failed\n"); 25131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto delete_rport; 25141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_add_device(dev); 25161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_configure_device(dev); 25171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_rportadd(shost, rport); 25199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* ignore any bsg add error - we just can't do sgio */ 25209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 2521a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles & FC_PORT_ROLE_FCP_TARGET) { 25221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 2523aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 25241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 2525aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 25261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 25281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdelete_rport: 25301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_destroy_device(dev); 25311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 25321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_del(&rport->peers); 25333bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(&shost->shost_gendev); /* for fc_host->rport list */ 25341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 25351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(dev->parent); 25361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(rport); 25371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 25381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2541eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_add - notify fc transport of the existence of a remote FC port. 25421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @shost: scsi host the remote port is connected to. 25431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @channel: Channel on shost port connected to. 25441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ids: The world wide names, fc address, and FC4 port 25451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * roles for the remote port. 25461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LLDD calls this routine to notify the transport of the existence 25481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of a remote port. The LLDD provides the unique identifiers (wwpn,wwn) 25491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the port, it's FC address (port_id), and the FC4 roles that are 25501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * active for the port. 25511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For ports that are FCP targets (aka scsi targets), the FC transport 25531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * maintains consistent target id bindings on behalf of the LLDD. 25541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A consistent target id binding is an assignment of a target id to 25551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a remote port identifier, which persists while the scsi host is 25561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attached. The remote port can disappear, then later reappear, and 25571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it's target id assignment remains the same. This allows for shifts 25581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in FC addressing (if binding by wwpn or wwnn) with no apparent 25591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * changes to the scsi subsystem which is based on scsi host number and 25601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target id values. Bindings are only valid during the attachment of 25611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the scsi host. If the host detaches, then later re-attaches, target 25621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * id bindings may change. 25631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is responsible for returning a remote port structure. 25651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The routine will search the list of remote ports it maintains 25661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * internally on behalf of consistent target id mappings. If found, the 25671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * remote port structure will be reused. Otherwise, a new remote port 25681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * structure will be allocated. 25691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Whenever a remote port is allocated, a new fc_remote_port class 25711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device is created. 25721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should not be called from interrupt context. 25741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 25761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2577eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 25781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fc_rport * 25791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_add(struct Scsi_Host *shost, int channel, 25801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport_identifiers *ids) 25811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 258219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct fc_internal *fci = to_fc_internal(shost->transportt); 2583aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 25841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport; 25851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 25861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int match = 0; 25871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2588aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* ensure any stgt delete functions are done */ 2589aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_work(shost); 2590aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 259119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 259219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Search the list of "active" rports, for an rport that has been 259319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * deleted, but we've held off the real delete while the target 259419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * is in a "blocked" state. 259519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 259619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_lock_irqsave(shost->host_lock, flags); 259719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2598aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_for_each_entry(rport, &fc_host->rports, peers) { 259919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 260019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) && 260119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->channel == channel)) { 260219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2603aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart switch (fc_host->tgtid_bind_type) { 260419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_WWPN: 260519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_NONE: 260619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_name == ids->port_name) 260719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 260819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 260919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_WWNN: 261019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->node_name == ids->node_name) 261119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 261219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 261319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_ID: 261419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_id == ids->port_id) 261519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 261619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 261719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 261819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 261919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (match) { 262019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 262119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memcpy(&rport->node_name, &ids->node_name, 262219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com sizeof(rport->node_name)); 262319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memcpy(&rport->port_name, &ids->port_name, 262419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com sizeof(rport->port_name)); 262519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_id = ids->port_id; 262619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 262719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_state = FC_PORTSTATE_ONLINE; 262819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->roles = ids->roles; 262919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 263019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 263119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 263219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (fci->f->dd_fcrport_size) 263319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memset(rport->dd_data, 0, 263419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com fci->f->dd_fcrport_size); 263519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 263619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 263792740b24ce6ddac6534fae985aab602548692186James Smart * If we were not a target, cancel the 263892740b24ce6ddac6534fae985aab602548692186James Smart * io terminate and rport timers, and 263992740b24ce6ddac6534fae985aab602548692186James Smart * we're done. 264092740b24ce6ddac6534fae985aab602548692186James Smart * 264192740b24ce6ddac6534fae985aab602548692186James Smart * If we were a target, but our new role 264292740b24ce6ddac6534fae985aab602548692186James Smart * doesn't indicate a target, leave the 264392740b24ce6ddac6534fae985aab602548692186James Smart * timers running expecting the role to 264492740b24ce6ddac6534fae985aab602548692186James Smart * change as the target fully logs in. If 264592740b24ce6ddac6534fae985aab602548692186James Smart * it doesn't, the target will be torn down. 264692740b24ce6ddac6534fae985aab602548692186James Smart * 264792740b24ce6ddac6534fae985aab602548692186James Smart * If we were a target, and our role shows 264892740b24ce6ddac6534fae985aab602548692186James Smart * we're still a target, cancel the timers 264992740b24ce6ddac6534fae985aab602548692186James Smart * and kick off a scan. 265019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 265119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 265292740b24ce6ddac6534fae985aab602548692186James Smart /* was a target, not in roles */ 265392740b24ce6ddac6534fae985aab602548692186James Smart if ((rport->scsi_target_id != -1) && 2654a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart (!(ids->roles & FC_PORT_ROLE_FCP_TARGET))) 265592740b24ce6ddac6534fae985aab602548692186James Smart return rport; 265619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 265719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 265892740b24ce6ddac6534fae985aab602548692186James Smart * Stop the fail io and dev_loss timers. 265992740b24ce6ddac6534fae985aab602548692186James Smart * If they flush, the port_state will 266092740b24ce6ddac6534fae985aab602548692186James Smart * be checked and will NOOP the function. 266119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 26620f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 26630f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_flush_devloss(shost); 266492740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->dev_loss_work)) 2665aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_devloss(shost); 2666aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2667aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 2668aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2669fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | 26704be98c0ca304c8a47998b29a7993664f71791250James Smart FC_RPORT_DEVLOSS_PENDING | 26714be98c0ca304c8a47998b29a7993664f71791250James Smart FC_RPORT_DEVLOSS_CALLBK_DONE); 267219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 267392740b24ce6ddac6534fae985aab602548692186James Smart /* if target, initiate a scan */ 267492740b24ce6ddac6534fae985aab602548692186James Smart if (rport->scsi_target_id != -1) { 267592740b24ce6ddac6534fae985aab602548692186James Smart rport->flags |= FC_RPORT_SCAN_PENDING; 267692740b24ce6ddac6534fae985aab602548692186James Smart scsi_queue_work(shost, 267792740b24ce6ddac6534fae985aab602548692186James Smart &rport->scan_work); 267892740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, 267992740b24ce6ddac6534fae985aab602548692186James Smart flags); 268092740b24ce6ddac6534fae985aab602548692186James Smart scsi_target_unblock(&rport->dev); 268192740b24ce6ddac6534fae985aab602548692186James Smart } else 268292740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, 268392740b24ce6ddac6534fae985aab602548692186James Smart flags); 2684a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart 26859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_goose_queue(rport); 26869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 268719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return rport; 268819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 268919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 269019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 269119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 269292740b24ce6ddac6534fae985aab602548692186James Smart /* 269392740b24ce6ddac6534fae985aab602548692186James Smart * Search the bindings array 269492740b24ce6ddac6534fae985aab602548692186James Smart * Note: if never a FCP target, you won't be on this list 269592740b24ce6ddac6534fae985aab602548692186James Smart */ 2696aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->tgtid_bind_type != FC_TGTID_BIND_NONE) { 26971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* search for a matching consistent binding */ 26991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2700aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_for_each_entry(rport, &fc_host->rport_bindings, 27011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds peers) { 27021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->channel != channel) 27031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 27041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2705aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart switch (fc_host->tgtid_bind_type) { 27061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWPN: 27071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->port_name == ids->port_name) 27081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 27091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWNN: 27111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->node_name == ids->node_name) 27121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 27131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_ID: 27151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->port_id == ids->port_id) 27161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 27171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_NONE: /* to keep compiler happy */ 27191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match) { 2723aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_move_tail(&rport->peers, &fc_host->rports); 27241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match) { 27291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->node_name, &ids->node_name, 27301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(rport->node_name)); 27311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->port_name, &ids->port_name, 27321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(rport->port_name)); 27331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = ids->port_id; 27341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = ids->roles; 27351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_ONLINE; 2736fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; 27371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 273819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (fci->f->dd_fcrport_size) 273919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memset(rport->dd_data, 0, 274019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com fci->f->dd_fcrport_size); 274119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2742a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles & FC_PORT_ROLE_FCP_TARGET) { 27431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 2744aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 27451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 2746a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2747a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart scsi_target_unblock(&rport->dev); 2748a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart } else 2749a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 27501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 27521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 275519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 275619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 27571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* No consistent binding found - create new remote port entry */ 27581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport = fc_rport_create(shost, channel, ids); 27591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 27611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_add); 27631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2766eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_delete - notifies the fc transport that a remote port is no longer in existence. 27671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port that no longer exists 27681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LLDD calls this routine to notify the transport that a remote 27701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * port is no longer part of the topology. Note: Although a port 27711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * may no longer be part of the topology, it may persist in the remote 277219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * ports displayed by the fc_host. We do this under 2 conditions: 2773eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 1) If the port was a scsi target, we delay its deletion by "blocking" it. 277419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * This allows the port to temporarily disappear, then reappear without 277519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * disrupting the SCSI device tree attached to it. During the "blocked" 277619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * period the port will still exist. 2777eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 2) If the port was a scsi target and disappears for longer than we 277819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * expect, we'll delete the port and the tear down the SCSI device tree 277919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * attached to it. However, we want to semi-persist the target id assigned 278019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * to that port if it eventually does exist. The port structure will 278119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * remain (although with minimal information) so that the target id 278219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * bindings remails. 27831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If the remote port is not an FCP Target, it will be fully torn down 27851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and deallocated, including the fc_remote_port class device. 27861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 278719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port is an FCP Target, the port will be placed in a 278819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * temporary blocked state. From the LLDD's perspective, the rport no 278919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * longer exists. From the SCSI midlayer's perspective, the SCSI target 279019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * exists, but all sdevs on it are blocked from further I/O. The following 2791eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * is then expected. 2792eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 279319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port does not return (signaled by a LLDD call to 279419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * fc_remote_port_add()) within the dev_loss_tmo timeout, then the 279519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi target is removed - killing all outstanding i/o and removing the 279619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi devices attached ot it. The port structure will be marked Not 279719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Present and be partially cleared, leaving only enough information to 279819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * recognize the remote port relative to the scsi target id binding if 279919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * it later appears. The port will remain as long as there is a valid 280019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * binding (e.g. until the user changes the binding type or unloads the 280119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi host with the binding). 28021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 280319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port returns within the dev_loss_tmo value (and matches 280419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * according to the target id binding type), the port structure will be 280519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * reused. If it is no longer a SCSI target, the target will be torn 280619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * down. If it continues to be a SCSI target, then the target will be 280719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * unblocked (allowing i/o to be resumed), and a scan will be activated 280819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * to ensure that all luns are detected. 280919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * 281019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Called from normal process context only - cannot be called from interrupt. 28111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 28121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 28131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2814eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 28151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 28161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_delete(struct fc_rport *rport) 28171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2818aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 281919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com int timeout = rport->dev_loss_tmo; 2820aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart unsigned long flags; 2821aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2822aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* 2823aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * No need to flush the fc_host work_q's, as all adds are synchronous. 2824aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2825aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * We do need to reclaim the rport scan work element, so eventually 2826aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * (in fc_rport_final_delete()) we'll flush the scsi host work_q if 2827aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * there's still a scan pending. 2828aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart */ 2829aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2830aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 28311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 283292740b24ce6ddac6534fae985aab602548692186James Smart if (rport->port_state != FC_PORTSTATE_ONLINE) { 2833aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 28341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 28351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 283792740b24ce6ddac6534fae985aab602548692186James Smart /* 283892740b24ce6ddac6534fae985aab602548692186James Smart * In the past, we if this was not an FCP-Target, we would 283992740b24ce6ddac6534fae985aab602548692186James Smart * unconditionally just jump to deleting the rport. 284092740b24ce6ddac6534fae985aab602548692186James Smart * However, rports can be used as node containers by the LLDD, 284192740b24ce6ddac6534fae985aab602548692186James Smart * and its not appropriate to just terminate the rport at the 284292740b24ce6ddac6534fae985aab602548692186James Smart * first sign of a loss in connectivity. The LLDD may want to 284392740b24ce6ddac6534fae985aab602548692186James Smart * send ELS traffic to re-validate the login. If the rport is 284492740b24ce6ddac6534fae985aab602548692186James Smart * immediately deleted, it makes it inappropriate for a node 284592740b24ce6ddac6534fae985aab602548692186James Smart * container. 284692740b24ce6ddac6534fae985aab602548692186James Smart * So... we now unconditionally wait dev_loss_tmo before 284792740b24ce6ddac6534fae985aab602548692186James Smart * destroying an rport. 284892740b24ce6ddac6534fae985aab602548692186James Smart */ 284992740b24ce6ddac6534fae985aab602548692186James Smart 2850aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_BLOCKED; 2851aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2852aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_DEVLOSS_PENDING; 2853aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2854aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2855aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 28567525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori if (rport->roles & FC_PORT_ROLE_FCP_INITIATOR && 28577525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori shost->active_mode & MODE_TARGET) 28587525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori fc_tgt_it_nexus_destroy(shost, (unsigned long)rport); 28597525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 286019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com scsi_target_block(&rport->dev); 28611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28620f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart /* see if we need to kill io faster than waiting for device loss */ 28630f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((rport->fast_io_fail_tmo != -1) && 2864fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie (rport->fast_io_fail_tmo < timeout)) 28650f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_queue_devloss_work(shost, &rport->fail_io_work, 28660f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo * HZ); 28670f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 286819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* cap the length the devices can be blocked until they are deleted */ 2869aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_devloss_work(shost, &rport->dev_loss_work, timeout * HZ); 28701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 28711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_delete); 28721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2874eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_rolechg - notifies the fc transport that the roles on a remote may have changed. 28751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port that changed. 2876eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @roles: New roles for this port. 28771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2878eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Description: The LLDD calls this routine to notify the transport that the 2879eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * roles on a remote port may have changed. The largest effect of this is 28801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if a port now becomes a FCP Target, it must be allocated a 28811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi target id. If the port is no longer a FCP target, any 28821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi target id value assigned to it will persist in case the 28831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * role changes back to include FCP Target. No changes in the scsi 28841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * midlayer will be invoked if the role changes (in the expectation 28851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that the role will be resumed. If it doesn't normal error processing 28861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * will take place). 28871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 28881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should not be called from interrupt context. 28891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 28901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 28911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2892eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 28931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 28941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_rolechg(struct fc_rport *rport, u32 roles) 28951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 28961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); 2897aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 28981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 28991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int create = 0; 29007525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori int ret; 29011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 2903a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (roles & FC_PORT_ROLE_FCP_TARGET) { 290419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->scsi_target_id == -1) { 290519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->scsi_target_id = fc_host->next_target_id++; 290619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com create = 1; 2907a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else if (!(rport->roles & FC_PORT_ROLE_FCP_TARGET)) 290819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com create = 1; 29097525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori } else if (shost->active_mode & MODE_TARGET) { 29107525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori ret = fc_tgt_it_nexus_create(shost, (unsigned long)rport, 29117525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori (char *)&rport->node_name); 29127525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori if (ret) 29137525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori printk(KERN_ERR "FC Remore Port tgt nexus failed %d\n", 29147525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori ret); 29151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 29161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 291719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->roles = roles; 291819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2919aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2920aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 292119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (create) { 292219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 292319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * There may have been a delete timer running on the 292419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * port. Ensure that it is cancelled as we now know 292519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * the port is an FCP Target. 292619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Note: we know the rport is exists and in an online 292719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * state as the LLDD would not have had an rport 292819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * reference to pass us. 292919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * 293019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Take no action on the del_timer failure as the state 293119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * machine state change will validate the 293219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * transaction. 293319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 29340f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 29350f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_flush_devloss(shost); 293619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (!cancel_delayed_work(&rport->dev_loss_work)) 2937aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_devloss(shost); 2938aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2939aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 2940fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | 2941fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie FC_RPORT_DEVLOSS_PENDING); 2942aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2943aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2944aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* ensure any stgt delete functions are done */ 2945aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_work(shost); 294619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 29471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 2948aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 2949aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 29501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 2951aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2952a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart scsi_target_unblock(&rport->dev); 295319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 29541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 29551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_rolechg); 29561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2958eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_timeout_deleted_rport - Timeout handler for a deleted remote port. 295992740b24ce6ddac6534fae985aab602548692186James Smart * @work: rport target that failed to reappear in the allotted time. 2960eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 2961eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Description: An attempt to delete a remote port blocks, and if it fails 2962eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * to return in the allotted time this gets called. 2963eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 29641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 2965c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_timeout_deleted_rport(struct work_struct *work) 29661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2967c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 2968c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, dev_loss_work.work); 296919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct Scsi_Host *shost = rport_to_shost(rport); 29704be98c0ca304c8a47998b29a7993664f71791250James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 2971aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 297219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com unsigned long flags; 29731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 297419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_lock_irqsave(shost->host_lock, flags); 29751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2976aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; 2977aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 29781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 297992740b24ce6ddac6534fae985aab602548692186James Smart * If the port is ONLINE, then it came back. If it was a SCSI 298092740b24ce6ddac6534fae985aab602548692186James Smart * target, validate it still is. If not, tear down the 298192740b24ce6ddac6534fae985aab602548692186James Smart * scsi_target on it. 29821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2983aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if ((rport->port_state == FC_PORTSTATE_ONLINE) && 298492740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) && 2985a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart !(rport->roles & FC_PORT_ROLE_FCP_TARGET)) { 298619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 2987aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "blocked FC remote port time out: no longer" 2988aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart " a FCP target, removing starget\n"); 2989aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2990a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart scsi_target_unblock(&rport->dev); 2991a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart fc_queue_work(shost, &rport->stgt_delete_work); 299219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 299319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 29941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 299592740b24ce6ddac6534fae985aab602548692186James Smart /* NOOP state - we're flushing workq's */ 299619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_state != FC_PORTSTATE_BLOCKED) { 299719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 299819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 299992740b24ce6ddac6534fae985aab602548692186James Smart "blocked FC remote port time out: leaving" 300092740b24ce6ddac6534fae985aab602548692186James Smart " rport%s alone\n", 300192740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) ? " and starget" : ""); 300219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 300319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 30041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 300592740b24ce6ddac6534fae985aab602548692186James Smart if ((fc_host->tgtid_bind_type == FC_TGTID_BIND_NONE) || 300692740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id == -1)) { 3007aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 3008aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 300919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 301092740b24ce6ddac6534fae985aab602548692186James Smart "blocked FC remote port time out: removing" 301192740b24ce6ddac6534fae985aab602548692186James Smart " rport%s\n", 301292740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) ? " and starget" : ""); 3013aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 3014aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 301519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 301619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 30171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 301819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 301919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com "blocked FC remote port time out: removing target and " 302019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com "saving binding\n"); 302119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 3022aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_move_tail(&rport->peers, &fc_host->rport_bindings); 30231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 30241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 302519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Note: We do not remove or clear the hostdata area. This allows 302619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * host-specific target data to persist along with the 302719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi_target_id. It's up to the host to manage it's hostdata area. 30281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 30291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 303019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 303119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Reinitialize port attributes that may change if the port comes back. 303219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 303319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->maxframe_size = -1; 303419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->supported_classes = FC_COS_UNSPECIFIED; 3035a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart rport->roles = FC_PORT_ROLE_UNKNOWN; 3036aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_NOTPRESENT; 3037fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; 30384be98c0ca304c8a47998b29a7993664f71791250James Smart rport->flags |= FC_RPORT_DEVLOSS_CALLBK_DONE; 30391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3040f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart /* 3041f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * Pre-emptively kill I/O rather than waiting for the work queue 3042f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * item to teardown the starget. (FCOE libFC folks prefer this 3043f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * and to have the rport_port_id still set when it's done). 3044f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart */ 3045f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3046f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart fc_terminate_rport_io(rport); 3047f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart 3048f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart BUG_ON(rport->port_state != FC_PORTSTATE_NOTPRESENT); 3049f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart 305019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* remove the identifiers that aren't used in the consisting binding */ 3051aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart switch (fc_host->tgtid_bind_type) { 305219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_WWPN: 305319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->node_name = -1; 305419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_id = -1; 305519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 305619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_WWNN: 305719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_name = -1; 305819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_id = -1; 305919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 306019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_ID: 306119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->node_name = -1; 306219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_name = -1; 306319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 306419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_NONE: /* to keep compiler happy */ 306519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 306619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 306719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 306819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 306919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * As this only occurs if the remote port (scsi target) 307019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * went away and didn't come back - we'll remove 307119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * all attached scsi devices. 307219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 3073a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart fc_queue_work(shost, &rport->stgt_delete_work); 30744be98c0ca304c8a47998b29a7993664f71791250James Smart 30754be98c0ca304c8a47998b29a7993664f71791250James Smart /* 30764be98c0ca304c8a47998b29a7993664f71791250James Smart * Notify the driver that the rport is now dead. The LLDD will 30774be98c0ca304c8a47998b29a7993664f71791250James Smart * also guarantee that any communication to the rport is terminated 30784be98c0ca304c8a47998b29a7993664f71791250James Smart * 30794be98c0ca304c8a47998b29a7993664f71791250James Smart * Note: we set the CALLBK_DONE flag above to correspond 30804be98c0ca304c8a47998b29a7993664f71791250James Smart */ 30814be98c0ca304c8a47998b29a7993664f71791250James Smart if (i->f->dev_loss_tmo_callbk) 30824be98c0ca304c8a47998b29a7993664f71791250James Smart i->f->dev_loss_tmo_callbk(rport); 30831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 30841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 30854be98c0ca304c8a47998b29a7993664f71791250James Smart 30861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3087eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_timeout_fail_rport_io - Timeout handler for a fast io failing on a disconnected SCSI target. 3088c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: rport to terminate io on. 30890f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * 30900f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * Notes: Only requests the failure of the io, not that all are flushed 30910f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * prior to returning. 3092eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 30930f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic void 3094c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_timeout_fail_rport_io(struct work_struct *work) 30950f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 3096c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 3097c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, fail_io_work.work); 30980f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 30990f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->port_state != FC_PORTSTATE_BLOCKED) 31000f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return; 31010f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 3102fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags |= FC_RPORT_FAST_FAIL_TIMEDOUT; 3103fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie fc_terminate_rport_io(rport); 31040f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 31050f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 31060f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart/** 31071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_scsi_scan_rport - called to perform a scsi scan on a remote port. 3108c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be scanned. 3109eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 31101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 3111c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_scsi_scan_rport(struct work_struct *work) 31121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3113c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 3114c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, scan_work); 3115aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 311603f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt struct fc_internal *i = to_fc_internal(shost->transportt); 311742e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com unsigned long flags; 311842e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 3119aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if ((rport->port_state == FC_PORTSTATE_ONLINE) && 312003f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt (rport->roles & FC_PORT_ROLE_FCP_TARGET) && 312103f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt !(i->f->disable_target_scan)) { 3122aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_scan_target(&rport->dev, rport->channel, 3123aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->scsi_target_id, SCAN_WILD_CARD, 1); 312442e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com } 3125aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 3126aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 3127aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags &= ~FC_RPORT_SCAN_PENDING; 312842e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 312942e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com} 313042e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 313142e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 3132a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/** 3133a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * fc_vport_setup - allocates and creates a FC virtual port. 3134a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @shost: scsi host the virtual port is connected to. 3135a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @channel: Channel on shost port connected to. 3136a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @pdev: parent device for vport 3137a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @ids: The world wide names, FC4 port roles, etc for 3138a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the virtual port. 3139a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @ret_vport: The pointer to the created vport. 3140a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3141a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Allocates and creates the vport structure, calls the parent host 3142a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * to instantiate the vport, the completes w/ class and sysfs creation. 3143a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3144a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Notes: 3145a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * This routine assumes no locks are held on entry. 3146eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 3147a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int 3148a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezfc_vport_setup(struct Scsi_Host *shost, int channel, struct device *pdev, 3149a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport_identifiers *ids, struct fc_vport **ret_vport) 3150a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 3151a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3152a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *fci = to_fc_internal(shost->transportt); 3153a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 3154a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev; 3155a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 3156a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size_t size; 3157a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int error; 3158a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3159a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *ret_vport = NULL; 3160a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3161a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ( ! fci->f->vport_create) 3162a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOENT; 3163a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3164a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size = (sizeof(struct fc_vport) + fci->f->dd_fcvport_size); 3165a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport = kzalloc(size, GFP_KERNEL); 3166a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (unlikely(!vport)) { 3167cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison printk(KERN_ERR "%s: allocation failure\n", __func__); 3168a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOMEM; 3169a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3170a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3171a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_state = FC_VPORT_UNKNOWN; 3172a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_last_state = FC_VPORT_UNKNOWN; 3173a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->node_name = ids->node_name; 3174a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->port_name = ids->port_name; 3175a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->roles = ids->roles; 3176a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_type = ids->vport_type; 3177a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (fci->f->dd_fcvport_size) 3178a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->dd_data = &vport[1]; 3179a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->shost = shost; 3180a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->channel = channel; 3181a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags = FC_VPORT_CREATING; 31829ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart INIT_WORK(&vport->vport_delete_work, fc_vport_sched_delete); 3183a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3184a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3185a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3186a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (fc_host->npiv_vports_inuse >= fc_host->max_npiv_vports) { 3187a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3188a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 3189a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOSPC; 3190a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3191a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse++; 3192a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->number = fc_host->next_vport_number++; 3193a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_add_tail(&vport->peers, &fc_host->vports); 3194a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart get_device(&shost->shost_gendev); /* for fc_host->vport list */ 3195a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3196a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3197a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3198a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev = &vport->dev; 3199a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_initialize(dev); /* takes self reference */ 3200a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev->parent = get_device(pdev); /* takes parent reference */ 3201a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev->release = fc_vport_dev_release; 320271610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_set_name(dev, "vport-%d:%d-%d", 320371610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers shost->host_no, channel, vport->number); 3204a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_setup_device(dev); 3205a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3206a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = device_add(dev); 3207a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) { 3208a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR "FC Virtual Port device_add failed\n"); 3209a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart goto delete_vport; 3210a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3211a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_add_device(dev); 3212a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_configure_device(dev); 3213a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3214a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = fci->f->vport_create(vport, ids->disable); 3215a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) { 3216a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR "FC Virtual Port LLDD Create failed\n"); 3217a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart goto delete_vport_all; 3218a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3219a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3220a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 3221a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * if the parent isn't the physical adapter's Scsi_Host, ensure 3222a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the Scsi_Host at least contains ia symlink to the vport. 3223a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 3224a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (pdev != &shost->shost_gendev) { 3225a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = sysfs_create_link(&shost->shost_gendev.kobj, 322671610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers &dev->kobj, dev_name(dev)); 3227a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) 3228a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR 3229a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "%s: Cannot create vport symlinks for " 3230a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "%s, err=%d\n", 323171610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers __func__, dev_name(dev), error); 3232a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3233a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3234a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags &= ~FC_VPORT_CREATING; 3235a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3236a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3237a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev_printk(KERN_NOTICE, pdev, 323871610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers "%s created via shost%d channel %d\n", dev_name(dev), 3239a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart shost->host_no, channel); 3240a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3241a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *ret_vport = vport; 3242a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3243a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 3244a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3245a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartdelete_vport_all: 3246a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_remove_device(dev); 3247a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_del(dev); 3248a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartdelete_vport: 3249a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_destroy_device(dev); 3250a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3251a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_del(&vport->peers); 3252a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(&shost->shost_gendev); /* for fc_host->vport list */ 3253a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse--; 3254a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3255a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev->parent); 3256a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 3257a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3258a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return error; 3259a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 3260a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3261a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez/** 3262a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * fc_vport_create - Admin App or LLDD requests creation of a vport 3263a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @shost: scsi host the virtual port is connected to. 3264a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @channel: channel on shost port connected to. 3265a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @ids: The world wide names, FC4 port roles, etc for 3266a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * the virtual port. 3267a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * 3268a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * Notes: 3269a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * This routine assumes no locks are held on entry. 3270a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez */ 3271a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezstruct fc_vport * 3272a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezfc_vport_create(struct Scsi_Host *shost, int channel, 3273a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez struct fc_vport_identifiers *ids) 3274a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez{ 3275a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez int stat; 3276a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez struct fc_vport *vport; 3277a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez 3278a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez stat = fc_vport_setup(shost, channel, &shost->shost_gendev, 3279a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez ids, &vport); 3280a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez return stat ? NULL : vport; 3281a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez} 3282a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew VasquezEXPORT_SYMBOL(fc_vport_create); 3283a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3284a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/** 3285a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * fc_vport_terminate - Admin App or LLDD requests termination of a vport 3286a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @vport: fc_vport to be terminated 3287a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3288a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Calls the LLDD vport_delete() function, then deallocates and removes 3289a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the vport from the shost and object tree. 3290a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3291a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Notes: 3292a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * This routine assumes no locks are held on entry. 3293eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 3294a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartint 3295a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_vport_terminate(struct fc_vport *vport) 3296a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 3297a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); 3298a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3299a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 3300a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev = &vport->dev; 3301a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 3302a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 3303a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3304a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3305a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & FC_VPORT_CREATING) { 3306a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3307a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; 3308a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3309a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL)) { 3310a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3311a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EALREADY; 3312a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3313a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags |= FC_VPORT_DELETING; 3314a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3315a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3316a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->vport_delete) 3317a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = i->f->vport_delete(vport); 3318a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else 3319a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = -ENOENT; 3320a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3321a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3322a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags &= ~FC_VPORT_DELETING; 3323a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!stat) { 3324a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags |= FC_VPORT_DELETED; 3325a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_del(&vport->peers); 3326a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse--; 3327a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(&shost->shost_gendev); /* for fc_host->vport list */ 3328a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3329a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3330a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3331a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 3332a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 3333a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3334a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (dev->parent != &shost->shost_gendev) 333571610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers sysfs_remove_link(&shost->shost_gendev.kobj, dev_name(dev)); 3336a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_remove_device(dev); 3337a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_del(dev); 3338a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_destroy_device(dev); 3339a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3340a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 3341a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Removing our self-reference should mean our 3342a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * release function gets called, which will drop the remaining 3343a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * parent reference and free the data structure. 3344a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 3345a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev); /* for self-reference */ 3346a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3347a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; /* SUCCESS */ 3348a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 3349a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James SmartEXPORT_SYMBOL(fc_vport_terminate); 3350a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 33519ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart/** 33529ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * fc_vport_sched_delete - workq-based delete request for a vport 33539ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * @work: vport to be deleted. 3354eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 33559ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartstatic void 33569ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartfc_vport_sched_delete(struct work_struct *work) 33579ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart{ 33589ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart struct fc_vport *vport = 33599ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart container_of(work, struct fc_vport, vport_delete_work); 33609ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart int stat; 33619ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 33629ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart stat = fc_vport_terminate(vport); 33639ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart if (stat) 33649ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart dev_printk(KERN_ERR, vport->dev.parent, 33659ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart "%s: %s could not be deleted created via " 3366cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison "shost%d channel %d - error %d\n", __func__, 336771610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_name(&vport->dev), vport->shost->host_no, 33689ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart vport->channel, stat); 33699ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart} 33709ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 3371a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 33729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/* 33739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * BSG support 33749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 33759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 33769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 33779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 33789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_destroy_bsgjob - routine to teardown/delete a fc bsg job 33799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: fc_bsg_job that is to be torn down 33809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 33819e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 33829e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_destroy_bsgjob(struct fc_bsg_job *job) 33839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 33849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart unsigned long flags; 33859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 33869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irqsave(&job->job_lock, flags); 33879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->ref_cnt) { 33889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 33899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 33909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 33919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 33929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 33939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(job->dev); /* release reference for the request */ 33949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 33959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->request_payload.sg_list); 33969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->reply_payload.sg_list); 33979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job); 33989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 33999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 34019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_jobdone - completion routine for bsg requests that the LLD has 34029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * completed 34039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: fc_bsg_job that is complete 34049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 34059e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 34069e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_jobdone(struct fc_bsg_job *job) 34079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 34089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req = job->req; 34099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *rsp = req->next_rq; 34109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 34119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = job->req->errors = job->reply->result; 3413b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali 34149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err < 0) 34159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* we're only returning the result field in the reply */ 34169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req->sense_len = sizeof(uint32_t); 34179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 34189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req->sense_len = job->reply_len; 34199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* we assume all request payload was transferred, residual == 0 */ 34219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->resid_len = 0; 34229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rsp) { 34249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart WARN_ON(job->reply->reply_payload_rcv_len > rsp->resid_len); 34259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* set reply (bidi) residual */ 34279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rsp->resid_len -= min(job->reply->reply_payload_rcv_len, 34289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rsp->resid_len); 34299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 3430b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_complete_request(req); 3431b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali} 3432b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali 3433b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali/** 3434b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali * fc_bsg_softirq_done - softirq done routine for destroying the bsg requests 3435fe5d20c818a8c5fe83d9f2223a051fb5bc50d180Randy Dunlap * @rq: BSG request that holds the job to be destroyed 3436b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali */ 3437b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavalistatic void fc_bsg_softirq_done(struct request *rq) 3438b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali{ 3439b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali struct fc_bsg_job *job = rq->special; 3440b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali unsigned long flags; 34419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 3442b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali spin_lock_irqsave(&job->job_lock, flags); 3443b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali job->state_flags |= FC_RQST_STATE_DONE; 3444b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali job->ref_cnt--; 3445b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali spin_unlock_irqrestore(&job->job_lock, flags); 34469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 3447b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_end_request_all(rq, rq->errors); 34489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_destroy_bsgjob(job); 34499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 34509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 34529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_job_timeout - handler for when a bsg request timesout 34539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @req: request that timed out 34549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 34559e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum blk_eh_timer_return 34569e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_job_timeout(struct request *req) 34579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 34589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job = (void *) req->special; 34599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = job->shost; 34609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 34619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart unsigned long flags; 34629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err = 0, done = 0; 34639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->rport && job->rport->port_state == FC_PORTSTATE_BLOCKED) 34659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return BLK_EH_RESET_TIMER; 34669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irqsave(&job->job_lock, flags); 34689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->state_flags & FC_RQST_STATE_DONE) 34699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart done = 1; 34709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 34719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->ref_cnt++; 34729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 34739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!done && i->f->bsg_timeout) { 34759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* call LLDD to abort the i/o as it has timed out */ 34769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = i->f->bsg_timeout(job); 34779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err) 34789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "ERROR: FC BSG request timeout - LLD " 34799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "abort failed with status %d\n", err); 34809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 34819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* the blk_end_sync_io() doesn't check the error */ 348347e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali if (done) 348447e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali return BLK_EH_NOT_HANDLED; 348547e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali else 348647e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali return BLK_EH_HANDLED; 34879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 34889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34899e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 34909e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_map_buffer(struct fc_bsg_buffer *buf, struct request *req) 34919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 34929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart size_t sz = (sizeof(struct scatterlist) * req->nr_phys_segments); 34939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(!req->nr_phys_segments); 34959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->sg_list = kzalloc(sz, GFP_KERNEL); 34979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!buf->sg_list) 34989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 34999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart sg_init_table(buf->sg_list, req->nr_phys_segments); 35009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->sg_cnt = blk_rq_map_sg(req->q, req, buf->sg_list); 35019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->payload_len = blk_rq_bytes(req); 35029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 35039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 35049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 35079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_req_to_bsgjob - Allocate/create the fc_bsg_job structure for the 35089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * bsg request 35099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: SCSI Host corresponding to the bsg object 35109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: (optional) FC Remote Port corresponding to the bsg object 35119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @req: BSG request that needs a job structure 35129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 35139e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 35149e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_req_to_bsgjob(struct Scsi_Host *shost, struct fc_rport *rport, 35159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req) 35169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 35179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 35189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *rsp = req->next_rq; 35199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job; 35209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 35219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(req->special); 35239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job = kzalloc(sizeof(struct fc_bsg_job) + i->f->dd_bsg_size, 35259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart GFP_KERNEL); 35269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!job) 35279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 35289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* 35309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * Note: this is a bit silly. 35319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * The request gets formatted as a SGIO v4 ioctl request, which 35329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * then gets reformatted as a blk request, which then gets 35339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * reformatted as a fc bsg request. And on completion, we have 35349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * to wrap return results such that SGIO v4 thinks it was a scsi 35359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * status. I hope this was all worth it. 35369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 35379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->special = job; 35399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->shost = shost; 35409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->rport = rport; 35419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req = req; 35429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (i->f->dd_bsg_size) 35439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dd_data = (void *)&job[1]; 35449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_init(&job->job_lock); 35459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->request = (struct fc_bsg_request *)req->cmd; 35469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->request_len = req->cmd_len; 35479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply = req->sense; 35489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = SCSI_SENSE_BUFFERSIZE; /* Size of sense buffer 35499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * allocated */ 35509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (req->bio) { 35519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_map_buffer(&job->request_payload, req); 35529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) 35539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto failjob_rls_job; 35549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 35559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rsp && rsp->bio) { 35569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_map_buffer(&job->reply_payload, rsp); 35579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) 35589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto failjob_rls_rqst_payload; 35599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 35609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->job_done = fc_bsg_jobdone; 35619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport) 35629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dev = &rport->dev; 35639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 35649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dev = &shost->shost_gendev; 35659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart get_device(job->dev); /* take a reference for the request */ 35669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->ref_cnt = 1; 35689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 35709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35729e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfailjob_rls_rqst_payload: 35739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->request_payload.sg_list); 35749e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfailjob_rls_job: 35759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job); 35769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 35779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 35789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35809e4f5e29610162fd426366f3b29e3cc6e575b858James Smartenum fc_dispatch_result { 35819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_BREAK, /* on return, q is locked, break from q loop */ 35829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_LOCKED, /* on return, q is locked, continue on */ 35839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_UNLOCKED, /* on return, q is unlocked, continue on */ 35849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart}; 35859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 35889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_host_dispatch - process fc host bsg requests and dispatch to LLDD 35895415907af1f5ef80c95147bacbd321b0d4236dd5Randy Dunlap * @q: fc host request queue 35909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: scsi host rport attached to 35919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: bsg job to be processed 35929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 35939e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum fc_dispatch_result 35949e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_host_dispatch(struct request_queue *q, struct Scsi_Host *shost, 35959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job) 35969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 35979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 35989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int cmdlen = sizeof(uint32_t); /* start with length of msgcode */ 35999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 36009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* Validate the host command */ 36029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart switch (job->request->msgcode) { 36039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_ADD_RPORT: 36049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_add_rport); 36059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_DEL_RPORT: 36089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_del_rport); 36099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_ELS_NOLOGIN: 36129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_els); 36139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be a xmt and rcv payloads */ 36149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 36159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 36169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 36179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 36189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_CT: 36229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_ct); 36239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be xmt and rcv payloads */ 36249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 36259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 36269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 36279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 36289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_VENDOR: 36329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_vendor); 36339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((shost->hostt->vendor_id == 0L) || 36349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (job->request->rqst_data.h_vendor.vendor_id != 36359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->hostt->vendor_id)) { 36369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ESRCH; 36379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 36389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart default: 36429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EBADR; 36439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 36449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we really have all the request data needed */ 36479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < cmdlen) { 36489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ENOMSG; 36499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 36509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = i->f->bsg_request(job); 36539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!ret) 36549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 36559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36569e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfail_host_msg: 36579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* return the errno failure code as the only status */ 36589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 36599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = ret; 36609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 36619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 36629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 36639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 36649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/* 36679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_goose_queue - restart rport queue in case it was stopped 36689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport to be restarted 36699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 36709e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 36719e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_goose_queue(struct fc_rport *rport) 36729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 36739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int flagset; 367439562e783928e3ea9ee2cbce99a756ab48d3c06aChristof Schmitt unsigned long flags; 36759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!rport->rqst_q) 36779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 36789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart get_device(&rport->dev); 36809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 368139562e783928e3ea9ee2cbce99a756ab48d3c06aChristof Schmitt spin_lock_irqsave(rport->rqst_q->queue_lock, flags); 36829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart flagset = test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags) && 36839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart !test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags); 36849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (flagset) 36859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_set(QUEUE_FLAG_REENTER, rport->rqst_q); 36869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart __blk_run_queue(rport->rqst_q); 36879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (flagset) 36889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_clear(QUEUE_FLAG_REENTER, rport->rqst_q); 368939562e783928e3ea9ee2cbce99a756ab48d3c06aChristof Schmitt spin_unlock_irqrestore(rport->rqst_q->queue_lock, flags); 36909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(&rport->dev); 36929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 36939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 36969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rport_dispatch - process rport bsg requests and dispatch to LLDD 36975415907af1f5ef80c95147bacbd321b0d4236dd5Randy Dunlap * @q: rport request queue 36989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: scsi host rport attached to 36999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport request destined to 37009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: bsg job to be processed 37019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 37029e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum fc_dispatch_result 37039e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rport_dispatch(struct request_queue *q, struct Scsi_Host *shost, 37049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport, struct fc_bsg_job *job) 37059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 37069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 37079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int cmdlen = sizeof(uint32_t); /* start with length of msgcode */ 37089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 37099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* Validate the rport command */ 37119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart switch (job->request->msgcode) { 37129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_RPT_ELS: 37139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_rport_els); 37149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto check_bidi; 37159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_RPT_CT: 37179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_rport_ct); 37189e4f5e29610162fd426366f3b29e3cc6e575b858James Smartcheck_bidi: 37199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be xmt and rcv payloads */ 37209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 37219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 37229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 37239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 37249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 37269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart default: 37279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EBADR; 37289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 37299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we really have all the request data needed */ 37329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < cmdlen) { 37339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ENOMSG; 37349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 37359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = i->f->bsg_request(job); 37389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!ret) 37399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 37409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37419e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfail_rport_msg: 37429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* return the errno failure code as the only status */ 37439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 37449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = ret; 37459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 37469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 37479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 37489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 37499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 37529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_request_handler - generic handler for bsg requests 37539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: request queue to manage 37549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: Scsi_Host related to the bsg object 37559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: FC remote port related to the bsg object (optional) 37569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @dev: device structure for bsg object 37579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 37589e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 37599e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_request_handler(struct request_queue *q, struct Scsi_Host *shost, 37609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport, struct device *dev) 37619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 37629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req; 37639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job; 37649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart enum fc_dispatch_result ret; 37659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!get_device(dev)) 37679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 37689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart while (!blk_queue_plugged(q)) { 37709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport && (rport->port_state == FC_PORTSTATE_BLOCKED)) 37719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 37729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req = blk_fetch_request(q); 37749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!req) 37759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 37769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport && (rport->port_state != FC_PORTSTATE_ONLINE)) { 37789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->errors = -ENXIO; 37799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 37809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_end_request(req, -ENXIO, blk_rq_bytes(req)); 37819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 37829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 37839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 37869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_req_to_bsgjob(shost, rport, req); 37889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) { 37899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->errors = ret; 37909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_end_request(req, ret, blk_rq_bytes(req)); 37919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 37929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 37939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job = req->special; 37969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we have the msgcode value at least */ 37989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < sizeof(uint32_t)) { 37999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 38009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = -ENOMSG; 38019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 38029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 38039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 38049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 38059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* the dispatch routines will unlock the queue_lock */ 38089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport) 38099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_rport_dispatch(q, shost, rport, job); 38109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 38119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_host_dispatch(q, shost, job); 38129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* did dispatcher hit state that can't process any more */ 38149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret == FC_DISPATCH_BREAK) 38159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 38169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* did dispatcher had released the lock */ 38189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret == FC_DISPATCH_UNLOCKED) 38199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 38209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 38239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(dev); 38249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 38259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 38269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 38299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_host_handler - handler for bsg requests for a fc host 38309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: fc host request queue 38319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 38329e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 38339e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_host_handler(struct request_queue *q) 38349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 38359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = q->queuedata; 38369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_request_handler(q, shost, NULL, &shost->shost_gendev); 38389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 38399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 38429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rport_handler - handler for bsg requests for a fc rport 38439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: rport request queue 38449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 38459e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 38469e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rport_handler(struct request_queue *q) 38479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 38489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport = q->queuedata; 38499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = rport_to_shost(rport); 38509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_request_handler(q, shost, rport, &rport->dev); 38529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 38539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 38569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_hostadd - Create and add the bsg hooks so we can receive requests 38579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: shost for fc_host 38589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @fc_host: fc_host adding the structures to 38599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 38609e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 38619e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_hostadd(struct Scsi_Host *shost, struct fc_host_attrs *fc_host) 38629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 38639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *dev = &shost->shost_gendev; 38649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 38659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request_queue *q; 38669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 38673c559ea8fd003962d9a28c64b2dd5c6d83ca6edbJames Bottomley char bsg_name[20]; 38689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host->rqst_q = NULL; 38709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!i->f->bsg_request) 38729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOTSUPP; 38739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart snprintf(bsg_name, sizeof(bsg_name), 38759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "fc_host%d", shost->host_no); 38769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q = __scsi_alloc_queue(shost, fc_bsg_host_handler); 38789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!q) { 38799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "fc_host%d: bsg interface failed to " 38809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - no request queue\n", 38819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->host_no); 38829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 38839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q->queuedata = shost; 38869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q); 3887b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_queue_softirq_done(q, fc_bsg_softirq_done); 38889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timed_out(q, fc_bsg_job_timeout); 38899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timeout(q, FC_DEFAULT_BSG_TIMEOUT); 38909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = bsg_register_queue(q, dev, bsg_name, NULL); 38929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err) { 38939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "fc_host%d: bsg interface failed to " 38949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - register queue\n", 38959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->host_no); 38969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 38979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return err; 38989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host->rqst_q = q; 39019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 39029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 39039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 39069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rportadd - Create and add the bsg hooks so we can receive requests 39079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: shost that rport is attached to 39089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport that the bsg hooks are being attached to 39099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 39109e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 39119e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rportadd(struct Scsi_Host *shost, struct fc_rport *rport) 39129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 39139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *dev = &rport->dev; 39149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 39159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request_queue *q; 39169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 39179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rport->rqst_q = NULL; 39199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!i->f->bsg_request) 39219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOTSUPP; 39229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q = __scsi_alloc_queue(shost, fc_bsg_rport_handler); 39249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!q) { 39259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "%s: bsg interface failed to " 39269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - no request queue\n", 39279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart dev->kobj.name); 39289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 39299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q->queuedata = rport; 39329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q); 3933b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_queue_softirq_done(q, fc_bsg_softirq_done); 39349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timed_out(q, fc_bsg_job_timeout); 39359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timeout(q, BLK_DEFAULT_SG_TIMEOUT); 39369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = bsg_register_queue(q, dev, NULL, NULL); 39389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err) { 39399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "%s: bsg interface failed to " 39409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - register queue\n", 39419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart dev->kobj.name); 39429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 39439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return err; 39449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rport->rqst_q = q; 39479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 39489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 39499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 39529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_remove - Deletes the bsg hooks on fchosts/rports 39539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: the request_queue that is to be torn down. 39549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 39559e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 39569e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_remove(struct request_queue *q) 39579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 39589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (q) { 39599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart bsg_unregister_queue(q); 39609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 39619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 39639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39659ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart/* Original Author: Martin Hicks */ 39669ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames SmartMODULE_AUTHOR("James Smart"); 39671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("FC Transport Attributes"); 39681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 39691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 39701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(fc_transport_init); 39711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(fc_transport_exit); 3972