scsi_transport_fc.c revision 2bc1c59dbdefdb6f9767e06efb86bbdb2923a8be
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> 3065d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt#include <linux/delay.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_device.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_host.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport_fc.h> 35c829c394165f981d49f05a9be228404d7a9398d4James Smart#include <scsi/scsi_cmnd.h> 3684314fd4740ad73550c76dee4a9578979d84af48James Smart#include <linux/netlink.h> 3784314fd4740ad73550c76dee4a9578979d84af48James Smart#include <net/netlink.h> 3884314fd4740ad73550c76dee4a9578979d84af48James Smart#include <scsi/scsi_netlink_fc.h> 399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart#include <scsi/scsi_bsg_fc.h> 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "scsi_priv.h" 417525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori#include "scsi_transport_fc_internal.h" 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 43aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int fc_queue_work(struct Scsi_Host *, struct work_struct *); 449ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartstatic void fc_vport_sched_delete(struct work_struct *work); 45a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezstatic int fc_vport_setup(struct Scsi_Host *shost, int channel, 46a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *pdev, struct fc_vport_identifiers *ids, 47a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport **vport); 489e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_bsg_hostadd(struct Scsi_Host *, struct fc_host_attrs *); 499e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_bsg_rportadd(struct Scsi_Host *, struct fc_rport *); 509e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void fc_bsg_remove(struct request_queue *); 519e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void fc_bsg_goose_queue(struct fc_rport *); 52a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 53a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Redefine so that we can have same named attributes in the 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sdev/starget/host objects. 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 57ee959b00c335d7780136c5abda37809191fe52c3Tony Jones#define FC_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \ 58ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstruct device_attribute device_attr_##_prefix##_##_name = \ 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ATTR(_name,_mode,_show,_store) 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_enum_name_search(title, table_type, table) \ 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const char *get_fc_##title##_name(enum table_type table_key) \ 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name = NULL; \ 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 676391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (table[i].value == table_key) { \ 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = table[i].name; \ 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; \ 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return name; \ 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_enum_name_match(title, table_type, table) \ 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int get_fc_##title##_match(const char *table_key, \ 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum table_type *value) \ 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 826391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(table_key, table[i].name, \ 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds table[i].matchlen) == 0) { \ 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *value = table[i].value; \ 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* success */ \ 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; /* failure */ \ 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_port_type values to ascii string name */ 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_port_type value; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_type_names[] = { 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_UNKNOWN, "Unknown" }, 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_OTHER, "Other" }, 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NOTPRESENT, "Not Present" }, 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NPORT, "NPort (fabric via point-to-point)" }, 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NLPORT, "NLPort (fabric via loop)" }, 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_LPORT, "LPort (private loop)" }, 104951948a397e3ddc96658efd648b9d66622965b19Christof Schmitt { FC_PORTTYPE_PTP, "Point-To-Point (direct nport connection)" }, 105a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORTTYPE_NPIV, "NPIV VPORT" }, 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(port_type, fc_port_type, fc_port_type_names) 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_PORTTYPE_MAX_NAMELEN 50 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 110a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Reuse fc_port_type enum function for vport_type */ 111a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define get_fc_vport_type_name get_fc_port_type_name 112a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11484314fd4740ad73550c76dee4a9578979d84af48James Smart/* Convert fc_host_event_code values to ascii string name */ 11584314fd4740ad73550c76dee4a9578979d84af48James Smartstatic const struct { 11684314fd4740ad73550c76dee4a9578979d84af48James Smart enum fc_host_event_code value; 11784314fd4740ad73550c76dee4a9578979d84af48James Smart char *name; 11884314fd4740ad73550c76dee4a9578979d84af48James Smart} fc_host_event_code_names[] = { 11984314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LIP, "lip" }, 12084314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINKUP, "link_up" }, 12184314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINKDOWN, "link_down" }, 12284314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LIPRESET, "lip_reset" }, 12384314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_RSCN, "rscn" }, 12484314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_ADAPTER_CHANGE, "adapter_chg" }, 12584314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_UNKNOWN, "port_unknown" }, 12684314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_ONLINE, "port_online" }, 12784314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_OFFLINE, "port_offline" }, 12884314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_FABRIC, "port_fabric" }, 12984314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINK_UNKNOWN, "link_unknown" }, 13084314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_VENDOR_UNIQUE, "vendor_unique" }, 13184314fd4740ad73550c76dee4a9578979d84af48James Smart}; 13284314fd4740ad73550c76dee4a9578979d84af48James Smartfc_enum_name_search(host_event_code, fc_host_event_code, 13384314fd4740ad73550c76dee4a9578979d84af48James Smart fc_host_event_code_names) 13484314fd4740ad73550c76dee4a9578979d84af48James Smart#define FC_HOST_EVENT_CODE_MAX_NAMELEN 30 13584314fd4740ad73550c76dee4a9578979d84af48James Smart 13684314fd4740ad73550c76dee4a9578979d84af48James Smart 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_port_state values to ascii string name */ 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_port_state value; 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_state_names[] = { 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_UNKNOWN, "Unknown" }, 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_NOTPRESENT, "Not Present" }, 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_ONLINE, "Online" }, 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_OFFLINE, "Offline" }, 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_BLOCKED, "Blocked" }, 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_BYPASSED, "Bypassed" }, 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_DIAGNOSTICS, "Diagnostics" }, 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_LINKDOWN, "Linkdown" }, 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_ERROR, "Error" }, 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_LOOPBACK, "Loopback" }, 15242e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com { FC_PORTSTATE_DELETED, "Deleted" }, 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(port_state, fc_port_state, fc_port_state_names) 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_PORTSTATE_MAX_NAMELEN 20 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 158a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Convert fc_vport_state values to ascii string name */ 159a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic struct { 160a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart enum fc_vport_state value; 161a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *name; 162a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} fc_vport_state_names[] = { 163a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_UNKNOWN, "Unknown" }, 164a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_ACTIVE, "Active" }, 165a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_DISABLED, "Disabled" }, 166a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_LINKDOWN, "Linkdown" }, 167a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_INITIALIZING, "Initializing" }, 168a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_NO_FABRIC_SUPP, "No Fabric Support" }, 169a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_NO_FABRIC_RSCS, "No Fabric Resources" }, 170a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FABRIC_LOGOUT, "Fabric Logout" }, 171a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FABRIC_REJ_WWN, "Fabric Rejected WWN" }, 172a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FAILED, "VPort Failed" }, 173a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart}; 174a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_enum_name_search(vport_state, fc_vport_state, fc_vport_state_names) 175a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define FC_VPORTSTATE_MAX_NAMELEN 24 176a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 177a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Reuse fc_vport_state enum function for vport_last_state */ 178a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define get_fc_vport_last_state_name get_fc_vport_state_name 179a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 180a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_tgtid_binding_type values to ascii string name */ 1820ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_tgtid_binding_type value; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int matchlen; 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_tgtid_binding_type_names[] = { 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_NONE, "none", 4 }, 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_WWPN, "wwpn (World Wide Port Name)", 4 }, 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_WWNN, "wwnn (World Wide Node Name)", 4 }, 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_ID, "port_id (FC Address)", 7 }, 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(tgtid_bind_type, fc_tgtid_binding_type, 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_tgtid_binding_type_names) 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_match(tgtid_bind_type, fc_tgtid_binding_type, 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_tgtid_binding_type_names) 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_BINDTYPE_MAX_NAMELEN 30 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_bitfield_name_search(title, table) \ 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsget_fc_##title##_names(u32 table_key, char *buf) \ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *prefix = ""; \ 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssize_t len = 0; \ 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 2076391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (table[i].value & table_key) { \ 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "%s%s", \ 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prefix, table[i].name); \ 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prefix = ", "; \ 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "\n"); \ 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; \ 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert FC_COS bit values to ascii string name */ 2200ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_cos_names[] = { 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS1, "Class 1" }, 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS2, "Class 2" }, 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS3, "Class 3" }, 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS4, "Class 4" }, 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS6, "Class 6" }, 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_bitfield_name_search(cos, fc_cos_names) 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert FC_PORTSPEED bit values to ascii string name */ 2340ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_speed_names[] = { 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_1GBIT, "1 Gbit" }, 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_2GBIT, "2 Gbit" }, 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_4GBIT, "4 Gbit" }, 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_10GBIT, "10 Gbit" }, 242c3d2350a8420dbf9d48f5f8a0fb72117bfcbc1b0James Smart { FC_PORTSPEED_8GBIT, "8 Gbit" }, 243c3d2350a8420dbf9d48f5f8a0fb72117bfcbc1b0James Smart { FC_PORTSPEED_16GBIT, "16 Gbit" }, 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_NOT_NEGOTIATED, "Not Negotiated" }, 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_bitfield_name_search(port_speed, fc_port_speed_names) 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_fc4s (char *buf, u8 *fc4_list) 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, len=0; 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < FC_FC4_LIST_SIZE; i++, fc4_list++) 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len , "0x%02x ", *fc4_list); 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "\n"); 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 261a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Convert FC_PORT_ROLE bit values to ascii string name */ 2620ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 265a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} fc_port_role_names[] = { 266a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_FCP_TARGET, "FCP Target" }, 267a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_FCP_INITIATOR, "FCP Initiator" }, 268a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_IP_PORT, "IP Port" }, 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 270a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_bitfield_name_search(port_roles, fc_port_role_names) 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Define roles that are specific to port_id. Values are relative to ROLE_MASK. 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_WELLKNOWN_PORTID_MASK 0xfffff0 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_WELLKNOWN_ROLE_MASK 0x00000f 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FPORT_PORTID 0x00000e 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FABCTLR_PORTID 0x00000d 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_DIRSRVR_PORTID 0x00000c 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_TIMESRVR_PORTID 0x00000b 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_MGMTSRVR_PORTID 0x00000a 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 284c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_timeout_deleted_rport(struct work_struct *work); 285c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_timeout_fail_rport_io(struct work_struct *work); 286c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_scsi_scan_rport(struct work_struct *work); 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Attribute counts pre object type... 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Increase these values if you add attributes 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_STARGET_NUM_ATTRS 3 2930f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart#define FC_RPORT_NUM_ATTRS 10 294a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define FC_VPORT_NUM_ATTRS 9 2954643682ba50634db5cd61292711d031630baf233James Smart#define FC_HOST_NUM_ATTRS 22 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fc_internal { 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_transport_template t; 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_function_template *f; 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For attributes : each object has : 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * An array of the actual attributes structures 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * An array of null-terminated pointers to the attribute 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * structures - used for mid-layer interaction. 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The attribute containers for the starget and host are are 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * part of the midlayer. As the remote port is specific to the 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc transport, we must provide the attribute container. 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 311ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_starget_attrs[ 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FC_STARGET_NUM_ATTRS]; 313ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *starget_attrs[FC_STARGET_NUM_ATTRS + 1]; 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 315ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_host_attrs[FC_HOST_NUM_ATTRS]; 316ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *host_attrs[FC_HOST_NUM_ATTRS + 1]; 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct transport_container rport_attr_cont; 319ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_rport_attrs[FC_RPORT_NUM_ATTRS]; 320ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *rport_attrs[FC_RPORT_NUM_ATTRS + 1]; 321a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 322a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct transport_container vport_attr_cont; 323ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_vport_attrs[FC_VPORT_NUM_ATTRS]; 324ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *vport_attrs[FC_VPORT_NUM_ATTRS + 1]; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define to_fc_internal(tmpl) container_of(tmpl, struct fc_internal, t) 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 329d0a7e574007fd547d72ec693bfa35778623d0738James Bottomleystatic int fc_target_setup(struct transport_container *tc, struct device *dev, 330ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device *cdev) 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_target *starget = to_scsi_target(dev); 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = starget_to_rport(starget); 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if parent is remote port, use values from remote port. 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise, this host uses the fc_transport, but not the 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * remote port interface. As such, initialize to known non-values. 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport) { 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_node_name(starget) = rport->node_name; 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_name(starget) = rport->port_name; 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_id(starget) = rport->port_id; 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_node_name(starget) = -1; 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_name(starget) = -1; 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_id(starget) = -1; 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_transport_class, 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_transport", 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_target_setup, 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 359d0a7e574007fd547d72ec693bfa35778623d0738James Bottomleystatic int fc_host_setup(struct transport_container *tc, struct device *dev, 360ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device *cdev) 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = dev_to_shost(dev); 363aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3659ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart /* 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set default values easily detected by the midlayer as 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * failure cases. The scsi lldd is responsible for initializing 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * all transport attributes to valid values per host. 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 370aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->node_name = -1; 371aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_name = -1; 372aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->permanent_port_name = -1; 373aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->supported_classes = FC_COS_UNSPECIFIED; 374aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->supported_fc4s, 0, 375aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->supported_fc4s)); 376aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->supported_speeds = FC_PORTSPEED_UNKNOWN; 377aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->maxframe_size = -1; 378a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->max_npiv_vports = 0; 379aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->serial_number, 0, 380aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->serial_number)); 381aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 382aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_id = -1; 383aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_type = FC_PORTTYPE_UNKNOWN; 384aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_state = FC_PORTSTATE_UNKNOWN; 385aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->active_fc4s, 0, 386aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->active_fc4s)); 387aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->speed = FC_PORTSPEED_UNKNOWN; 388aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->fabric_name = -1; 389b8d08210126a7b769b857720a59721a453a57a1eJames Smart memset(fc_host->symbolic_name, 0, sizeof(fc_host->symbolic_name)); 390b8d08210126a7b769b857720a59721a453a57a1eJames Smart memset(fc_host->system_hostname, 0, sizeof(fc_host->system_hostname)); 391aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 392aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->tgtid_bind_type = FC_TGTID_BIND_BY_WWPN; 393aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 394aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart INIT_LIST_HEAD(&fc_host->rports); 395aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart INIT_LIST_HEAD(&fc_host->rport_bindings); 396a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart INIT_LIST_HEAD(&fc_host->vports); 397aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->next_rport_number = 0; 398aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->next_target_id = 0; 399a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->next_vport_number = 0; 400a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse = 0; 401aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 402aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name), 403aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers "fc_wq_%d", shost->host_no); 404aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q = create_singlethread_workqueue( 405aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q_name); 406aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host->work_q) 407aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -ENOMEM; 408aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 409aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers snprintf(fc_host->devloss_work_q_name, 410aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers sizeof(fc_host->devloss_work_q_name), 411aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers "fc_dl_%d", shost->host_no); 412aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->devloss_work_q = create_singlethread_workqueue( 413aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->devloss_work_q_name); 414aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host->devloss_work_q) { 415aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(fc_host->work_q); 416aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q = NULL; 417aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -ENOMEM; 418aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 419aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 4209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_hostadd(shost, fc_host); 4219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* ignore any bsg add error - we just can't do sgio */ 4229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 4249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 4259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4269e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_host_remove(struct transport_container *tc, struct device *dev, 4279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *cdev) 4289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 4299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = dev_to_shost(dev); 4309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 4319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_remove(fc_host->rqst_q); 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_host_class, 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_host", 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_setup, 4399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host_remove, 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup and Remove actions for remote ports are handled 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in the service functions below. 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_rport_class, 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_remote_ports", 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 453a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Setup and Remove actions for virtual ports are handled 454a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * in the service functions below. 455a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 456a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic DECLARE_TRANSPORT_CLASS(fc_vport_class, 457a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "fc_vports", 458a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, 459a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, 460a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL); 461a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 462a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Module Parameters 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * dev_loss_tmo: the default number of seconds that the FC transport 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * should insulate the loss of a remote port. 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The maximum will be capped by the value of SCSI_DEVICE_BLOCK_MAX_TIMEOUT. 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4711c9e16e47a22c61d99aabb1c154e5106ddbf3575James Smartstatic unsigned int fc_dev_loss_tmo = 60; /* seconds */ 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 47310f4b89a0f0586a67f57efb2f5d12fffbb371490Masatake YAMATOmodule_param_named(dev_loss_tmo, fc_dev_loss_tmo, uint, S_IRUGO|S_IWUSR); 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(dev_loss_tmo, 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Maximum number of seconds that the FC transport should" 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " insulate the loss of a remote port. Once this value is" 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " exceeded, the scsi target is removed. Value should be" 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " between 1 and SCSI_DEVICE_BLOCK_MAX_TIMEOUT."); 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 480eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley/* 48184314fd4740ad73550c76dee4a9578979d84af48James Smart * Netlink Infrastructure 482eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 48384314fd4740ad73550c76dee4a9578979d84af48James Smart 48484314fd4740ad73550c76dee4a9578979d84af48James Smartstatic atomic_t fc_event_seq; 48584314fd4740ad73550c76dee4a9578979d84af48James Smart 48684314fd4740ad73550c76dee4a9578979d84af48James Smart/** 48784314fd4740ad73550c76dee4a9578979d84af48James Smart * fc_get_event_number - Obtain the next sequential FC event number 48884314fd4740ad73550c76dee4a9578979d84af48James Smart * 48984314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 490eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * We could have inlined this, but it would have required fc_event_seq to 49184314fd4740ad73550c76dee4a9578979d84af48James Smart * be exposed. For now, live with the subroutine call. 49284314fd4740ad73550c76dee4a9578979d84af48James Smart * Atomic used to avoid lock/unlock... 493eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 49484314fd4740ad73550c76dee4a9578979d84af48James Smartu32 49584314fd4740ad73550c76dee4a9578979d84af48James Smartfc_get_event_number(void) 49684314fd4740ad73550c76dee4a9578979d84af48James Smart{ 49784314fd4740ad73550c76dee4a9578979d84af48James Smart return atomic_add_return(1, &fc_event_seq); 49884314fd4740ad73550c76dee4a9578979d84af48James Smart} 49984314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_get_event_number); 50084314fd4740ad73550c76dee4a9578979d84af48James Smart 50184314fd4740ad73550c76dee4a9578979d84af48James Smart 50284314fd4740ad73550c76dee4a9578979d84af48James Smart/** 50384314fd4740ad73550c76dee4a9578979d84af48James Smart * fc_host_post_event - called to post an even on an fc_host. 50484314fd4740ad73550c76dee4a9578979d84af48James Smart * @shost: host the event occurred on 50584314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_number: fc event number obtained from get_fc_event_number() 50684314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_code: fc_host event being posted 50784314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_data: 32bits of data for the event being posted 50884314fd4740ad73550c76dee4a9578979d84af48James Smart * 50984314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 51084314fd4740ad73550c76dee4a9578979d84af48James Smart * This routine assumes no locks are held on entry. 511eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 51284314fd4740ad73550c76dee4a9578979d84af48James Smartvoid 51384314fd4740ad73550c76dee4a9578979d84af48James Smartfc_host_post_event(struct Scsi_Host *shost, u32 event_number, 51484314fd4740ad73550c76dee4a9578979d84af48James Smart enum fc_host_event_code event_code, u32 event_data) 51584314fd4740ad73550c76dee4a9578979d84af48James Smart{ 51684314fd4740ad73550c76dee4a9578979d84af48James Smart struct sk_buff *skb; 51784314fd4740ad73550c76dee4a9578979d84af48James Smart struct nlmsghdr *nlh; 51884314fd4740ad73550c76dee4a9578979d84af48James Smart struct fc_nl_event *event; 51984314fd4740ad73550c76dee4a9578979d84af48James Smart const char *name; 52084314fd4740ad73550c76dee4a9578979d84af48James Smart u32 len, skblen; 52184314fd4740ad73550c76dee4a9578979d84af48James Smart int err; 52284314fd4740ad73550c76dee4a9578979d84af48James Smart 52384314fd4740ad73550c76dee4a9578979d84af48James Smart if (!scsi_nl_sock) { 52484314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOENT; 52584314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail; 52684314fd4740ad73550c76dee4a9578979d84af48James Smart } 52784314fd4740ad73550c76dee4a9578979d84af48James Smart 52884314fd4740ad73550c76dee4a9578979d84af48James Smart len = FC_NL_MSGALIGN(sizeof(*event)); 52984314fd4740ad73550c76dee4a9578979d84af48James Smart skblen = NLMSG_SPACE(len); 53084314fd4740ad73550c76dee4a9578979d84af48James Smart 53184314fd4740ad73550c76dee4a9578979d84af48James Smart skb = alloc_skb(skblen, GFP_KERNEL); 53284314fd4740ad73550c76dee4a9578979d84af48James Smart if (!skb) { 53384314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 53484314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail; 53584314fd4740ad73550c76dee4a9578979d84af48James Smart } 53684314fd4740ad73550c76dee4a9578979d84af48James Smart 53784314fd4740ad73550c76dee4a9578979d84af48James Smart nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, 53884314fd4740ad73550c76dee4a9578979d84af48James Smart skblen - sizeof(*nlh), 0); 53984314fd4740ad73550c76dee4a9578979d84af48James Smart if (!nlh) { 54084314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 54184314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail_skb; 54284314fd4740ad73550c76dee4a9578979d84af48James Smart } 54384314fd4740ad73550c76dee4a9578979d84af48James Smart event = NLMSG_DATA(nlh); 54484314fd4740ad73550c76dee4a9578979d84af48James Smart 54584314fd4740ad73550c76dee4a9578979d84af48James Smart INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC, 54684314fd4740ad73550c76dee4a9578979d84af48James Smart FC_NL_ASYNC_EVENT, len); 54784314fd4740ad73550c76dee4a9578979d84af48James Smart event->seconds = get_seconds(); 54884314fd4740ad73550c76dee4a9578979d84af48James Smart event->vendor_id = 0; 54984314fd4740ad73550c76dee4a9578979d84af48James Smart event->host_no = shost->host_no; 55084314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_datalen = sizeof(u32); /* bytes */ 55184314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_num = event_number; 55284314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_code = event_code; 55384314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_data = event_data; 55484314fd4740ad73550c76dee4a9578979d84af48James Smart 555ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, 556ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso GFP_KERNEL); 55784314fd4740ad73550c76dee4a9578979d84af48James Smart return; 55884314fd4740ad73550c76dee4a9578979d84af48James Smart 55984314fd4740ad73550c76dee4a9578979d84af48James Smartsend_fail_skb: 56084314fd4740ad73550c76dee4a9578979d84af48James Smart kfree_skb(skb); 56184314fd4740ad73550c76dee4a9578979d84af48James Smartsend_fail: 56284314fd4740ad73550c76dee4a9578979d84af48James Smart name = get_fc_host_event_code_name(event_code); 56384314fd4740ad73550c76dee4a9578979d84af48James Smart printk(KERN_WARNING 56484314fd4740ad73550c76dee4a9578979d84af48James Smart "%s: Dropped Event : host %d %s data 0x%08x - err %d\n", 565cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison __func__, shost->host_no, 56684314fd4740ad73550c76dee4a9578979d84af48James Smart (name) ? name : "<unknown>", event_data, err); 56784314fd4740ad73550c76dee4a9578979d84af48James Smart return; 56884314fd4740ad73550c76dee4a9578979d84af48James Smart} 56984314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_host_post_event); 57084314fd4740ad73550c76dee4a9578979d84af48James Smart 57184314fd4740ad73550c76dee4a9578979d84af48James Smart 57284314fd4740ad73550c76dee4a9578979d84af48James Smart/** 573eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_host_post_vendor_event - called to post a vendor unique event on an fc_host 57484314fd4740ad73550c76dee4a9578979d84af48James Smart * @shost: host the event occurred on 57584314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_number: fc event number obtained from get_fc_event_number() 57684314fd4740ad73550c76dee4a9578979d84af48James Smart * @data_len: amount, in bytes, of vendor unique data 57784314fd4740ad73550c76dee4a9578979d84af48James Smart * @data_buf: pointer to vendor unique data 578eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @vendor_id: Vendor id 57984314fd4740ad73550c76dee4a9578979d84af48James Smart * 58084314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 58184314fd4740ad73550c76dee4a9578979d84af48James Smart * This routine assumes no locks are held on entry. 582eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 58384314fd4740ad73550c76dee4a9578979d84af48James Smartvoid 58484314fd4740ad73550c76dee4a9578979d84af48James Smartfc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number, 585f14e2e29cdd07f80de6dec168dc2bb39de37eec3James Smart u32 data_len, char * data_buf, u64 vendor_id) 58684314fd4740ad73550c76dee4a9578979d84af48James Smart{ 58784314fd4740ad73550c76dee4a9578979d84af48James Smart struct sk_buff *skb; 58884314fd4740ad73550c76dee4a9578979d84af48James Smart struct nlmsghdr *nlh; 58984314fd4740ad73550c76dee4a9578979d84af48James Smart struct fc_nl_event *event; 59084314fd4740ad73550c76dee4a9578979d84af48James Smart u32 len, skblen; 59184314fd4740ad73550c76dee4a9578979d84af48James Smart int err; 59284314fd4740ad73550c76dee4a9578979d84af48James Smart 59384314fd4740ad73550c76dee4a9578979d84af48James Smart if (!scsi_nl_sock) { 59484314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOENT; 59584314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail; 59684314fd4740ad73550c76dee4a9578979d84af48James Smart } 59784314fd4740ad73550c76dee4a9578979d84af48James Smart 59884314fd4740ad73550c76dee4a9578979d84af48James Smart len = FC_NL_MSGALIGN(sizeof(*event) + data_len); 59984314fd4740ad73550c76dee4a9578979d84af48James Smart skblen = NLMSG_SPACE(len); 60084314fd4740ad73550c76dee4a9578979d84af48James Smart 60184314fd4740ad73550c76dee4a9578979d84af48James Smart skb = alloc_skb(skblen, GFP_KERNEL); 60284314fd4740ad73550c76dee4a9578979d84af48James Smart if (!skb) { 60384314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 60484314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail; 60584314fd4740ad73550c76dee4a9578979d84af48James Smart } 60684314fd4740ad73550c76dee4a9578979d84af48James Smart 60784314fd4740ad73550c76dee4a9578979d84af48James Smart nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, 60884314fd4740ad73550c76dee4a9578979d84af48James Smart skblen - sizeof(*nlh), 0); 60984314fd4740ad73550c76dee4a9578979d84af48James Smart if (!nlh) { 61084314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 61184314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail_skb; 61284314fd4740ad73550c76dee4a9578979d84af48James Smart } 61384314fd4740ad73550c76dee4a9578979d84af48James Smart event = NLMSG_DATA(nlh); 61484314fd4740ad73550c76dee4a9578979d84af48James Smart 61584314fd4740ad73550c76dee4a9578979d84af48James Smart INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC, 61684314fd4740ad73550c76dee4a9578979d84af48James Smart FC_NL_ASYNC_EVENT, len); 61784314fd4740ad73550c76dee4a9578979d84af48James Smart event->seconds = get_seconds(); 61884314fd4740ad73550c76dee4a9578979d84af48James Smart event->vendor_id = vendor_id; 61984314fd4740ad73550c76dee4a9578979d84af48James Smart event->host_no = shost->host_no; 62084314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_datalen = data_len; /* bytes */ 62184314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_num = event_number; 62284314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_code = FCH_EVT_VENDOR_UNIQUE; 62384314fd4740ad73550c76dee4a9578979d84af48James Smart memcpy(&event->event_data, data_buf, data_len); 62484314fd4740ad73550c76dee4a9578979d84af48James Smart 625ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, 626ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso GFP_KERNEL); 62784314fd4740ad73550c76dee4a9578979d84af48James Smart return; 62884314fd4740ad73550c76dee4a9578979d84af48James Smart 62984314fd4740ad73550c76dee4a9578979d84af48James Smartsend_vendor_fail_skb: 63084314fd4740ad73550c76dee4a9578979d84af48James Smart kfree_skb(skb); 63184314fd4740ad73550c76dee4a9578979d84af48James Smartsend_vendor_fail: 63284314fd4740ad73550c76dee4a9578979d84af48James Smart printk(KERN_WARNING 63384314fd4740ad73550c76dee4a9578979d84af48James Smart "%s: Dropped Event : host %d vendor_unique - err %d\n", 634cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison __func__, shost->host_no, err); 63584314fd4740ad73550c76dee4a9578979d84af48James Smart return; 63684314fd4740ad73550c76dee4a9578979d84af48James Smart} 63784314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_host_post_vendor_event); 63884314fd4740ad73550c76dee4a9578979d84af48James Smart 63984314fd4740ad73550c76dee4a9578979d84af48James Smart 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __init int fc_transport_init(void) 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 64384314fd4740ad73550c76dee4a9578979d84af48James Smart int error; 64484314fd4740ad73550c76dee4a9578979d84af48James Smart 64584314fd4740ad73550c76dee4a9578979d84af48James Smart atomic_set(&fc_event_seq, 0); 64684314fd4740ad73550c76dee4a9578979d84af48James Smart 64784314fd4740ad73550c76dee4a9578979d84af48James Smart error = transport_class_register(&fc_host_class); 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 650a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = transport_class_register(&fc_vport_class); 651a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) 652a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return error; 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = transport_class_register(&fc_rport_class); 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return transport_class_register(&fc_transport_class); 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit fc_transport_exit(void) 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_transport_class); 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_rport_class); 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_host_class); 664a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_class_unregister(&fc_vport_class); 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FC Remote Port Attribute Management 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_show_function(field, format_string, sz, cast) \ 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 673ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##field (struct device *dev, \ 674ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 676ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); \ 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 67919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((i->f->get_rport_##field) && \ 68019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com !((rport->port_state == FC_PORTSTATE_BLOCKED) || \ 68142e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || \ 68219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT))) \ 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_rport_##field(rport); \ 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast rport->field); \ 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_store_function(field) \ 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 689ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_rport_##field(struct device *dev, \ 690ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 691ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; \ 694ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); \ 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 6970f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; \ 69819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) || \ 69942e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || \ 70019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT)) \ 70119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return -EBUSY; \ 7020f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); \ 7030f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (*cp && (*cp != '\n')) \ 7040f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; \ 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->set_rport_##field(rport, val); \ 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rd_attr(field, format_string, sz) \ 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, ) \ 711ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rd_attr_cast(field, format_string, sz, cast) \ 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, (cast)) \ 716ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rw_attr(field, format_string, sz) \ 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, ) \ 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_store_function(field) \ 722ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO | S_IWUSR, \ 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, \ 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_rport_##field) 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_show_function(field, format_string, sz, cast) \ 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 729ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##field (struct device *dev, \ 730ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 732ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast rport->field); \ 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_attr(field, format_string, sz) \ 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_rport_show_function(field, format_string, sz, ) \ 738ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_attr_cast(field, format_string, sz, cast) \ 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_rport_show_function(field, format_string, sz, (cast)) \ 743ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_enum_attr(title, maxlen) \ 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 749ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##title (struct device *dev, \ 750ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 752ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; \ 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_##title##_name(rport->title); \ 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) \ 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; \ 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, maxlen, "%s\n", name); \ 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 759ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, title, S_IRUGO, \ 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##title, NULL) 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_RPORT_ATTRIBUTE_RD(field) \ 764ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_rport_##field) \ 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(field) \ 772ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_RPORT_ATTRIBUTE_RW(field) \ 779ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_rport_##field) { \ 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_rport_##field) \ 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7880f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart#define SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(field) \ 7890f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ \ 790ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7910f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7920f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart count++; \ 7930f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 7940f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The FC Transport Remote Port Attributes: */ 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Fixed Remote Port Attributes */ 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(maxframe_size, "%u bytes\n", 20); 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 803ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_supported_classes (struct device *dev, 804ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 806ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->supported_classes == FC_COS_UNSPECIFIED) 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unspecified\n"); 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_cos_names(rport->supported_classes, buf); 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 811ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, supported_classes, S_IRUGO, 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_supported_classes, NULL); 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Dynamic Remote Port Attributes */ 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 81619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com/* 81719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * dev_loss_tmo attribute 81819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 81919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Comfc_rport_show_function(dev_loss_tmo, "%d\n", 20, ) 82019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Comstatic ssize_t 821ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_rport_dev_loss_tmo(struct device *dev, struct device_attribute *attr, 822ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 82319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com{ 82419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com int val; 825ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 82619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct Scsi_Host *shost = rport_to_shost(rport); 82719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct fc_internal *i = to_fc_internal(shost->transportt); 8280f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; 82919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) || 83042e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || 83119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT)) 83219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return -EBUSY; 8330f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); 8340f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((*cp && (*cp != '\n')) || 8350f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (val < 0) || (val > SCSI_DEVICE_BLOCK_MAX_TIMEOUT)) 83619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return -EINVAL; 83719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com i->f->set_rport_dev_loss_tmo(rport, val); 83819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return count; 83919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com} 840ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, dev_loss_tmo, S_IRUGO | S_IWUSR, 84119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com show_fc_rport_dev_loss_tmo, store_fc_rport_dev_loss_tmo); 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Private Remote Port Attributes */ 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(port_id, "0x%06x\n", 20); 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 851ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_roles (struct device *dev, struct device_attribute *attr, 852ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 854ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* identify any roles that are port_id specific */ 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((rport->port_id != -1) && 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (rport->port_id & FC_WELLKNOWN_PORTID_MASK) == 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FC_WELLKNOWN_PORTID_MASK) { 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (rport->port_id & FC_WELLKNOWN_ROLE_MASK) { 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_FPORT_PORTID: 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Fabric Port\n"); 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_FABCTLR_PORTID: 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Fabric Controller\n"); 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_DIRSRVR_PORTID: 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Directory Server\n"); 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TIMESRVR_PORTID: 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Time Server\n"); 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_MGMTSRVR_PORTID: 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Management Server\n"); 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Unknown Fabric Entity\n"); 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 875a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles == FC_PORT_ROLE_UNKNOWN) 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 877a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return get_fc_port_roles_names(rport->roles, buf); 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 880ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, roles, S_IRUGO, 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_roles, NULL); 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(scsi_target_id, "%d\n", 20); 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8860f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart/* 8870f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * fast_io_fail_tmo attribute 8880f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart */ 8890f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic ssize_t 890ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_fast_io_fail_tmo (struct device *dev, 891ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 8920f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 893ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 8940f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 8950f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->fast_io_fail_tmo == -1) 8960f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return snprintf(buf, 5, "off\n"); 8970f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return snprintf(buf, 20, "%d\n", rport->fast_io_fail_tmo); 8980f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 8990f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 9000f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic ssize_t 901ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_rport_fast_io_fail_tmo(struct device *dev, 902ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, 903ee959b00c335d7780136c5abda37809191fe52c3Tony Jones size_t count) 9040f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 9050f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart int val; 9060f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; 907ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 9080f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 9090f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((rport->port_state == FC_PORTSTATE_BLOCKED) || 9100f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (rport->port_state == FC_PORTSTATE_DELETED) || 9110f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (rport->port_state == FC_PORTSTATE_NOTPRESENT)) 9120f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EBUSY; 9130f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (strncmp(buf, "off", 3) == 0) 9140f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = -1; 9150f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart else { 9160f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); 9170f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((*cp && (*cp != '\n')) || 9180f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (val < 0) || (val >= rport->dev_loss_tmo)) 9190f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; 9200f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = val; 9210f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart } 9220f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return count; 9230f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 924ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, fast_io_fail_tmo, S_IRUGO | S_IWUSR, 9250f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart show_fc_rport_fast_io_fail_tmo, store_fc_rport_fast_io_fail_tmo); 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FC SCSI Target Attribute Management 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: in the target show function we recognize when the remote 934a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * port is in the heirarchy and do not allow the driver to get 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * involved in sysfs functions. The driver only gets involved if 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it's the "old" style that doesn't use rports. 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_show_function(field, format_string, sz, cast) \ 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 940ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_starget_##field (struct device *dev, \ 941ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 943ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct scsi_target *starget = transport_class_to_starget(dev); \ 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); \ 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = starget_to_rport(starget); \ 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport) \ 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_##field(starget) = rport->field; \ 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (i->f->get_starget_##field) \ 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_starget_##field(starget); \ 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, \ 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cast fc_starget_##field(starget)); \ 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_rd_attr(field, format_string, sz) \ 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_show_function(field, format_string, sz, ) \ 957ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(starget, field, S_IRUGO, \ 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_starget_##field, NULL) 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_rd_attr_cast(field, format_string, sz, cast) \ 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_show_function(field, format_string, sz, (cast)) \ 962ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(starget, field, S_IRUGO, \ 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_starget_##field, NULL) 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_STARGET_ATTRIBUTE_RD(field) \ 966ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_starget_attrs[count] = device_attr_starget_##field; \ 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].attr.mode = S_IRUGO; \ 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].store = NULL; \ 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = &i->private_starget_attrs[count]; \ 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_starget_##field) \ 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_STARGET_ATTRIBUTE_RW(field) \ 974ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_starget_attrs[count] = device_attr_starget_##field; \ 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_starget_##field) { \ 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].attr.mode = S_IRUGO; \ 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].store = NULL; \ 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = &i->private_starget_attrs[count]; \ 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_starget_##field) \ 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The FC Transport SCSI Target Attributes: */ 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr(port_id, "0x%06x\n", 20); 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 990a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * FC Virtual Port Attribute Management 991a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 992a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 993a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_show_function(field, format_string, sz, cast) \ 994a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 995ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##field (struct device *dev, \ 996ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 997a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 998ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 999a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); \ 1000a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1001a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((i->f->get_vport_##field) && \ 1002a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart !(vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING))) \ 1003a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->get_vport_##field(vport); \ 1004a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, sz, format_string, cast vport->field); \ 1005a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1006a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1007a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_store_function(field) \ 1008a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1009ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1010ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1011ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1012a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1013a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int val; \ 1014ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1015a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); \ 1016a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1017a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *cp; \ 1018a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ 1019a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; \ 1020a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart val = simple_strtoul(buf, &cp, 0); \ 1021a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*cp && (*cp != '\n')) \ 1022a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1023a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->set_vport_##field(vport, val); \ 1024a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1025a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1026a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1027a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_store_str_function(field, slen) \ 1028a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1029ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1030ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1031ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1032a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1033ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1034a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); \ 1035a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1036a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; \ 1037a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart \ 1038a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ \ 1039a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') \ 1040a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; \ 1041a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (cnt > ((slen) - 1)) \ 1042a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1043a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memcpy(vport->field, buf, cnt); \ 1044a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->set_vport_##field(vport); \ 1045a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1046a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1047a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1048a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rd_attr(field, format_string, sz) \ 1049a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, ) \ 1050ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1051a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1052a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1053a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rd_attr_cast(field, format_string, sz, cast) \ 1054a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, (cast)) \ 1055ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1056a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1057a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1058a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rw_attr(field, format_string, sz) \ 1059a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, ) \ 1060a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_store_function(field) \ 1061ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ 1062a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, \ 1063a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_vport_##field) 1064a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1065a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_show_function(field, format_string, sz, cast) \ 1066a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1067ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##field (struct device *dev, \ 1068ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 1069a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1070ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1071a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, sz, format_string, cast vport->field); \ 1072a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1073a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1074a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_store_u32_function(field) \ 1075a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1076ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1077ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1078ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1079a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1080a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u32 val; \ 1081ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1082a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *cp; \ 1083a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ 1084a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; \ 1085a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart val = simple_strtoul(buf, &cp, 0); \ 1086a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*cp && (*cp != '\n')) \ 1087a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1088a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->field = val; \ 1089a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1090a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1091a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1092a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1093a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_attr(field, format_string, sz) \ 1094a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, ) \ 1095ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1096a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1097a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1098a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_attr_cast(field, format_string, sz, cast) \ 1099a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, (cast)) \ 1100ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1101a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1102a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1103a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rw_u32_attr(field, format_string, sz) \ 1104a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, ) \ 1105a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_store_u32_function(field) \ 1106ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ 1107a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, \ 1108a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_vport_##field) 1109a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1110a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1111a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_enum_attr(title, maxlen) \ 1112a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1113ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##title (struct device *dev, \ 1114ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1115ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) \ 1116a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1117ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1118a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart const char *name; \ 1119a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart name = get_fc_##title##_name(vport->title); \ 1120a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!name) \ 1121a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1122a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, maxlen, "%s\n", name); \ 1123a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} \ 1124ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, title, S_IRUGO, \ 1125a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##title, NULL) 1126a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1127a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1128a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_RD(field) \ 1129ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1130a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1131a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1132a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1133a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->get_##field) \ 1134a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1135a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: checks function not show bit */ 1136a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1137a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(field) \ 1138ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1139a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1140a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1141a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1142a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1143a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1144a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_WR(field) \ 1145ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1146a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1147a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->field) \ 1148a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1149a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: checks function */ 1150a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1151a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_RW(field) \ 1152ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1153a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!i->f->set_vport_##field) { \ 1154a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1155a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1156a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } \ 1157a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1158a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1159a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: does not check show bit */ 1160a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1161a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RW(field) \ 1162a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1163ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1164a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1165a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++; \ 1166a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1167a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1168a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1169a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* The FC Transport Virtual Port Attributes: */ 1170a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1171a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Fixed Virtual Port Attributes */ 1172a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1173a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Dynamic Virtual Port Attributes */ 1174a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1175a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Private Virtual Port Attributes */ 1176a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1177a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_state, FC_VPORTSTATE_MAX_NAMELEN); 1178a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_last_state, FC_VPORTSTATE_MAX_NAMELEN); 1179a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 1180a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 1181a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1182a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1183ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_roles (struct device *dev, struct device_attribute *attr, 1184ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) 1185a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1186ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 1187a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1188a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->roles == FC_PORT_ROLE_UNKNOWN) 1189a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, 20, "unknown\n"); 1190a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return get_fc_port_roles_names(vport->roles, buf); 1191a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1192ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, roles, S_IRUGO, show_fc_vport_roles, NULL); 1193a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1194a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_type, FC_PORTTYPE_MAX_NAMELEN); 1195a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1196a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_show_function(symbolic_name, "%s\n", 1197a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart FC_VPORT_SYMBOLIC_NAMELEN + 1, ) 1198a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_vport_store_str_function(symbolic_name, FC_VPORT_SYMBOLIC_NAMELEN) 1199ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, symbolic_name, S_IRUGO | S_IWUSR, 1200a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_symbolic_name, store_fc_vport_symbolic_name); 1201a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1202a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1203ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_delete(struct device *dev, struct device_attribute *attr, 1204ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1205a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1206ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 12079ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart struct Scsi_Host *shost = vport_to_shost(vport); 1208a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 12099ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart fc_queue_work(shost, &vport->vport_delete_work); 1210a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; 1211a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1212ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, vport_delete, S_IWUSR, 1213a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, store_fc_vport_delete); 1214a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1215a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1216a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1217a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Enable/Disable vport 1218a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Write "1" to disable, write "0" to enable 1219a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1220a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1221ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_disable(struct device *dev, struct device_attribute *attr, 1222ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, 1223a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size_t count) 1224a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1225ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 1226a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); 1227a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 1228a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 1229a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1230a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) 1231a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; 1232a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1233a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*buf == '0') { 1234a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->vport_state != FC_VPORT_DISABLED) 1235a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EALREADY; 1236a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else if (*buf == '1') { 1237a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->vport_state == FC_VPORT_DISABLED) 1238a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EALREADY; 1239a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else 1240a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1241a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1242a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = i->f->vport_disable(vport, ((*buf == '0') ? false : true)); 1243a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1244a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1245ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, vport_disable, S_IWUSR, 1246a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, store_fc_vport_disable); 1247a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1248a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1249a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Attribute Management 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_show_function(field, format_string, sz, cast) \ 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1255ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##field (struct device *dev, \ 1256ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1258ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_##field) \ 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_##field(shost); \ 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_store_function(field) \ 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1267ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_##field(struct device *dev, \ 1268ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1269ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; \ 1272ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 12740f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; \ 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 12760f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); \ 12770f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (*cp && (*cp != '\n')) \ 12780f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; \ 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->set_host_##field(shost, val); \ 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1283b8d08210126a7b769b857720a59721a453a57a1eJames Smart#define fc_host_store_str_function(field, slen) \ 1284b8d08210126a7b769b857720a59721a453a57a1eJames Smartstatic ssize_t \ 1285ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_##field(struct device *dev, \ 1286ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1287ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1288b8d08210126a7b769b857720a59721a453a57a1eJames Smart{ \ 1289ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 1290b8d08210126a7b769b857720a59721a453a57a1eJames Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1291b8d08210126a7b769b857720a59721a453a57a1eJames Smart unsigned int cnt=count; \ 1292b8d08210126a7b769b857720a59721a453a57a1eJames Smart \ 1293b8d08210126a7b769b857720a59721a453a57a1eJames Smart /* count may include a LF at end of string */ \ 1294b8d08210126a7b769b857720a59721a453a57a1eJames Smart if (buf[cnt-1] == '\n') \ 1295b8d08210126a7b769b857720a59721a453a57a1eJames Smart cnt--; \ 1296b8d08210126a7b769b857720a59721a453a57a1eJames Smart if (cnt > ((slen) - 1)) \ 1297b8d08210126a7b769b857720a59721a453a57a1eJames Smart return -EINVAL; \ 1298b8d08210126a7b769b857720a59721a453a57a1eJames Smart memcpy(fc_host_##field(shost), buf, cnt); \ 1299b8d08210126a7b769b857720a59721a453a57a1eJames Smart i->f->set_host_##field(shost); \ 1300b8d08210126a7b769b857720a59721a453a57a1eJames Smart return count; \ 1301b8d08210126a7b769b857720a59721a453a57a1eJames Smart} 1302b8d08210126a7b769b857720a59721a453a57a1eJames Smart 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_attr(field, format_string, sz) \ 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, ) \ 1305ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_attr_cast(field, format_string, sz, cast) \ 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, (cast)) \ 1310ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rw_attr(field, format_string, sz) \ 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, ) \ 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_store_function(field) \ 1316ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO | S_IWUSR, \ 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, \ 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_host_##field) 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_enum_attr(title, maxlen) \ 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1322ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##title (struct device *dev, \ 1323ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1325ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; \ 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_##title) \ 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_##title(shost); \ 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_##title##_name(fc_host_##title(shost)); \ 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) \ 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; \ 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, maxlen, "%s\n", name); \ 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 1335ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, title, S_IRUGO, show_fc_host_##title, NULL) 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_HOST_ATTRIBUTE_RD(field) \ 1338ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_host_##field) \ 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1345a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_HOST_ATTRIBUTE_RD_NS(field) \ 1346ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 1347a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_host_attrs[count].attr.mode = S_IRUGO; \ 1348a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_host_attrs[count].store = NULL; \ 1349a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->host_attrs[count] = &i->private_host_attrs[count]; \ 1350a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1351a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_HOST_ATTRIBUTE_RW(field) \ 1353ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_host_##field) { \ 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_host_##field) \ 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_show_function(field, format_string, sz, cast) \ 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1365ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##field (struct device *dev, \ 1366ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1368ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_rd_attr(field, format_string, sz) \ 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_host_show_function(field, format_string, sz, ) \ 1374ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_rd_attr_cast(field, format_string, sz, cast) \ 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_host_show_function(field, format_string, sz, (cast)) \ 1379ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_HOST_ATTRIBUTE_RD(field) \ 1383ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_HOST_ATTRIBUTE_RW(field) \ 139091ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez{ \ 1391ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 139391ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez count++; \ 139491ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez} 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Fixed Host Attributes */ 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1400ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_classes (struct device *dev, 1401ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1403ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_supported_classes(shost) == FC_COS_UNSPECIFIED) 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unspecified\n"); 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_cos_names(fc_host_supported_classes(shost), buf); 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1410ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_classes, S_IRUGO, 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_classes, NULL); 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1414ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_fc4s (struct device *dev, 1415ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1417ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ssize_t)show_fc_fc4s(buf, fc_host_supported_fc4s(shost)); 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1420ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_fc4s, S_IRUGO, 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_fc4s, NULL); 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1424ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_speeds (struct device *dev, 1425ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1427ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_supported_speeds(shost) == FC_PORTSPEED_UNKNOWN) 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_port_speed_names(fc_host_supported_speeds(shost), buf); 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1434ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_speeds, S_IRUGO, 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_speeds, NULL); 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 14406b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmannfc_private_host_rd_attr_cast(permanent_port_name, "0x%llx\n", 20, 14416b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmann unsigned long long); 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr(maxframe_size, "%u bytes\n", 20); 1443a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_host_rd_attr(max_npiv_vports, "%u\n", 20); 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr(serial_number, "%s\n", (FC_SERIAL_NUMBER_SIZE +1)); 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Dynamic Host Attributes */ 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1450ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_active_fc4s (struct device *dev, 1451ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1453ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_active_fc4s) 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_active_fc4s(shost); 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ssize_t)show_fc_fc4s(buf, fc_host_active_fc4s(shost)); 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1461ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, active_fc4s, S_IRUGO, 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_active_fc4s, NULL); 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1465ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_speed (struct device *dev, 1466ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1468ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_speed) 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_speed(shost); 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_speed(shost) == FC_PORTSPEED_UNKNOWN) 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_port_speed_names(fc_host_speed(shost), buf); 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1479ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, speed, S_IRUGO, 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_speed, NULL); 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_attr(port_id, "0x%06x\n", 20); 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_enum_attr(port_type, FC_PORTTYPE_MAX_NAMELEN); 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_attr_cast(fabric_name, "0x%llx\n", 20, unsigned long long); 1487016131b8fffa1085b4ad165ab228116fdc278ebeJames Smartfc_host_rd_attr(symbolic_name, "%s\n", FC_SYMBOLIC_NAME_SIZE + 1); 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1489b8d08210126a7b769b857720a59721a453a57a1eJames Smartfc_private_host_show_function(system_hostname, "%s\n", 1490b8d08210126a7b769b857720a59721a453a57a1eJames Smart FC_SYMBOLIC_NAME_SIZE + 1, ) 1491b8d08210126a7b769b857720a59721a453a57a1eJames Smartfc_host_store_str_function(system_hostname, FC_SYMBOLIC_NAME_SIZE) 1492ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, system_hostname, S_IRUGO | S_IWUSR, 1493b8d08210126a7b769b857720a59721a453a57a1eJames Smart show_fc_host_system_hostname, store_fc_host_system_hostname); 1494b8d08210126a7b769b857720a59721a453a57a1eJames Smart 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Private Host Attributes */ 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1499ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_private_host_tgtid_bind_type(struct device *dev, 1500ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1502ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_tgtid_bind_type_name(fc_host_tgtid_bind_type(shost)); 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, FC_BINDTYPE_MAX_NAMELEN, "%s\n", name); 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1511d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com#define get_list_head_entry(pos, head, member) \ 1512d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com pos = list_entry((head)->next, typeof(*pos), member) 1513d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1515ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_private_host_tgtid_bind_type(struct device *dev, 1516ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, size_t count) 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1518ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1519d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com struct fc_rport *rport; 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_tgtid_binding_type val; 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (get_fc_tgtid_bind_type_match(buf, &val)) 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* if changing bind type, purge all unused consistent bindings */ 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != fc_host_tgtid_bind_type(shost)) { 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 1529d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com while (!list_empty(&fc_host_rport_bindings(shost))) { 1530d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com get_list_head_entry(rport, 1531d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com &fc_host_rport_bindings(shost), peers); 1532aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 1533aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 1534aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 1535d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com } 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_tgtid_bind_type(shost) = val; 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1543ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, tgtid_bind_type, S_IRUGO | S_IWUSR, 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_private_host_tgtid_bind_type, 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_private_host_tgtid_bind_type); 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 154791ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquezstatic ssize_t 1548ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_private_host_issue_lip(struct device *dev, 1549ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, size_t count) 155091ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez{ 1551ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 155291ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez struct fc_internal *i = to_fc_internal(shost->transportt); 155391ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez int ret; 155491ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 155591ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez /* ignore any data value written to the attribute */ 155691ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez if (i->f->issue_fc_host_lip) { 155791ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez ret = i->f->issue_fc_host_lip(shost); 155891ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez return ret ? ret: count; 155991ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez } 156091ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 156191ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez return -ENOENT; 156291ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez} 156391ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 1564ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, issue_lip, S_IWUSR, NULL, 156591ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez store_fc_private_host_issue_lip); 156691ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 1567a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_host_rd_attr(npiv_vports_inuse, "%u\n", 20); 1568a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1569a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Statistics Management 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Show a given an attribute in the statistics group */ 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1576ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesfc_stat_show(const struct device *dev, char *buf, unsigned long offset) 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1578ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_host_statistics *stats; 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssize_t ret = -ENOENT; 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offset > sizeof(struct fc_host_statistics) || 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset % sizeof(u64) != 0) 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds WARN_ON(1); 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_fc_host_stats) { 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stats = (i->f->get_fc_host_stats)(shost); 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (stats) 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = snprintf(buf, 20, "0x%llx\n", 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long long)*(u64 *)(((u8 *) stats) + offset)); 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* generate a read-only statistics attribute */ 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_statistic(name) \ 1599ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic ssize_t show_fcstat_##name(struct device *cd, \ 1600ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1601ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) \ 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fc_stat_show(cd, buf, \ 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offsetof(struct fc_host_statistics, name)); \ 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 1606ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, name, S_IRUGO, show_fcstat_##name, NULL) 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(seconds_since_last_reset); 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(tx_frames); 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(tx_words); 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(rx_frames); 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(rx_words); 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(lip_count); 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(nos_count); 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(error_frames); 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(dumped_frames); 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(link_failure_count); 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(loss_of_sync_count); 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(loss_of_signal_count); 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(prim_seq_protocol_err_count); 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(invalid_tx_word_count); 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(invalid_crc_count); 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_input_requests); 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_output_requests); 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_control_requests); 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_input_megabytes); 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_output_megabytes); 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1630ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesfc_reset_statistics(struct device *dev, struct device_attribute *attr, 1631ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1633ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* ignore any data value written to the attribute */ 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->reset_fc_host_stats) { 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->reset_fc_host_stats(shost); 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOENT; 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1644ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, reset_statistics, S_IWUSR, NULL, 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_reset_statistics); 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct attribute *fc_statistics_attrs[] = { 1648ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_seconds_since_last_reset.attr, 1649ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_tx_frames.attr, 1650ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_tx_words.attr, 1651ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_rx_frames.attr, 1652ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_rx_words.attr, 1653ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_lip_count.attr, 1654ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_nos_count.attr, 1655ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_error_frames.attr, 1656ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_dumped_frames.attr, 1657ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_link_failure_count.attr, 1658ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_loss_of_sync_count.attr, 1659ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_loss_of_signal_count.attr, 1660ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_prim_seq_protocol_err_count.attr, 1661ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_invalid_tx_word_count.attr, 1662ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_invalid_crc_count.attr, 1663ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_input_requests.attr, 1664ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_output_requests.attr, 1665ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_control_requests.attr, 1666ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_input_megabytes.attr, 1667ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_output_megabytes.attr, 1668ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_reset_statistics.attr, 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct attribute_group fc_statistics_group = { 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "statistics", 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .attrs = fc_statistics_attrs, 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1677a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1678a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Host Vport Attributes */ 1679a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1680a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int 1681a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_parse_wwn(const char *ns, u64 *nm) 1682a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1683a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int i, j; 1684a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u8 wwn[8]; 1685a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1686a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memset(wwn, 0, sizeof(wwn)); 1687a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1688a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* Validate and store the new name */ 1689a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart for (i=0, j=0; i < 16; i++) { 1690a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((*ns >= 'a') && (*ns <= 'f')) 1691a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart j = ((j << 4) | ((*ns++ -'a') + 10)); 1692a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else if ((*ns >= 'A') && (*ns <= 'F')) 1693a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart j = ((j << 4) | ((*ns++ -'A') + 10)); 1694a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else if ((*ns >= '0') && (*ns <= '9')) 1695a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart j = ((j << 4) | (*ns++ -'0')); 1696a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else 1697a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1698a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i % 2) { 1699a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart wwn[i/2] = j & 0xff; 1700a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart j = 0; 1701a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1702a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1703a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1704a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *nm = wwn_to_u64(wwn); 1705a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1706a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 1707a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1708a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1709a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1710a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1711a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * "Short-cut" sysfs variable to create a new vport on a FC Host. 1712a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Input is a string of the form "<WWPN>:<WWNN>". Other attributes 1713a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * will default to a NPIV-based FCP_Initiator; The WWNs are specified 1714a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * as hex characters, and may *not* contain any prefixes (e.g. 0x, x, etc) 1715a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1716a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1717ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_vport_create(struct device *dev, struct device_attribute *attr, 1718ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1719a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1720ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1721a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport_identifiers vid; 1722a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 1723a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; 1724a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 1725a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1726a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memset(&vid, 0, sizeof(vid)); 1727a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1728a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ 1729a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') 1730a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; 1731a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1732a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* validate we have enough characters for WWPN */ 1733a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((cnt != (16+1+16)) || (buf[16] != ':')) 1734a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1735a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1736a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[0], &vid.port_name); 1737a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1738a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1739a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1740a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[17], &vid.node_name); 1741a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1742a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1743a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1744a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.roles = FC_PORT_ROLE_FCP_INITIATOR; 1745a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.vport_type = FC_PORTTYPE_NPIV; 1746a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* vid.symbolic_name is already zero/NULL's */ 1747a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.disable = false; /* always enabled */ 1748a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1749a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* we only allow support on Channel 0 !!! */ 1750a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez stat = fc_vport_setup(shost, 0, &shost->shost_gendev, &vid, &vport); 1751a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1752a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1753ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, vport_create, S_IWUSR, NULL, 1754a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_host_vport_create); 1755a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1756a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1757a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1758a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * "Short-cut" sysfs variable to delete a vport on a FC Host. 1759a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Vport is identified by a string containing "<WWPN>:<WWNN>". 1760a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * The WWNs are specified as hex characters, and may *not* contain 1761a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * any prefixes (e.g. 0x, x, etc) 1762a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1763a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1764ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_vport_delete(struct device *dev, struct device_attribute *attr, 1765ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1766a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1767ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1768a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 1769a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 1770a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u64 wwpn, wwnn; 1771a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 1772a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; 1773a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat, match; 1774a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1775a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ 1776a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') 1777a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; 1778a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1779a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* validate we have enough characters for WWPN */ 1780a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((cnt != (16+1+16)) || (buf[16] != ':')) 1781a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1782a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1783a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[0], &wwpn); 1784a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1785a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1786a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1787a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[17], &wwnn); 1788a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1789a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1790a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1791a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 1792a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart match = 0; 1793a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* we only allow support on Channel 0 !!! */ 1794a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_for_each_entry(vport, &fc_host->vports, peers) { 1795a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((vport->channel == 0) && 1796a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart (vport->port_name == wwpn) && (vport->node_name == wwnn)) { 1797a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart match = 1; 1798a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart break; 1799a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1800a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1801a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 1802a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1803a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!match) 1804a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENODEV; 1805a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1806a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_vport_terminate(vport); 1807a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1808a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1809ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, vport_delete, S_IWUSR, NULL, 1810a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_host_vport_delete); 1811a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1812a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_host_match(struct attribute_container *cont, 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_host_device(dev)) 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev); 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t.host_attrs.ac == cont; 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_target_match(struct attribute_container *cont, 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_target_device(dev)) 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev->parent); 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t.target_attrs.ac == cont; 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fc_rport_dev_release(struct device *dev) 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = dev_to_rport(dev); 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(dev->parent); 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(rport); 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint scsi_is_fc_rport(const struct device *dev) 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return dev->release == fc_rport_dev_release; 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(scsi_is_fc_rport); 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_rport_match(struct attribute_container *cont, 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_fc_rport(dev)) 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev->parent); 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->rport_attr_cont.ac == cont; 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18835c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 1884a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic void fc_vport_dev_release(struct device *dev) 1885a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1886a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport = dev_to_vport(dev); 1887a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev->parent); /* release kobj parent */ 1888a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 1889a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1890a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1891a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartint scsi_is_fc_vport(const struct device *dev) 1892a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1893a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return dev->release == fc_vport_dev_release; 1894a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1895a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James SmartEXPORT_SYMBOL(scsi_is_fc_vport); 1896a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1897a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int fc_vport_match(struct attribute_container *cont, 1898a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev) 1899a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1900a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 1901a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost; 1902a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i; 1903a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1904a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!scsi_is_fc_vport(dev)) 1905a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 1906a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport = dev_to_vport(dev); 1907a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1908a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart shost = vport_to_shost(vport); 1909a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!shost->transportt || shost->transportt->host_attrs.ac.class 1910a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart != &fc_host_class.class) 1911a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 1912a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1913a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i = to_fc_internal(shost->transportt); 1914a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return &i->vport_attr_cont.ac == cont; 1915a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1916a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1917a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1918c829c394165f981d49f05a9be228404d7a9398d4James Smart/** 1919c829c394165f981d49f05a9be228404d7a9398d4James Smart * fc_timed_out - FC Transport I/O timeout intercept handler 1920c829c394165f981d49f05a9be228404d7a9398d4James Smart * @scmd: The SCSI command which timed out 1921c829c394165f981d49f05a9be228404d7a9398d4James Smart * 1922c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine protects against error handlers getting invoked while a 1923c829c394165f981d49f05a9be228404d7a9398d4James Smart * rport is in a blocked state, typically due to a temporarily loss of 1924c829c394165f981d49f05a9be228404d7a9398d4James Smart * connectivity. If the error handlers are allowed to proceed, requests 1925c829c394165f981d49f05a9be228404d7a9398d4James Smart * to abort i/o, reset the target, etc will likely fail as there is no way 1926c829c394165f981d49f05a9be228404d7a9398d4James Smart * to communicate with the device to perform the requested function. These 1927c829c394165f981d49f05a9be228404d7a9398d4James Smart * failures may result in the midlayer taking the device offline, requiring 1928c829c394165f981d49f05a9be228404d7a9398d4James Smart * manual intervention to restore operation. 1929c829c394165f981d49f05a9be228404d7a9398d4James Smart * 1930c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine, called whenever an i/o times out, validates the state of 1931c829c394165f981d49f05a9be228404d7a9398d4James Smart * the underlying rport. If the rport is blocked, it returns 1932c829c394165f981d49f05a9be228404d7a9398d4James Smart * EH_RESET_TIMER, which will continue to reschedule the timeout. 1933c829c394165f981d49f05a9be228404d7a9398d4James Smart * Eventually, either the device will return, or devloss_tmo will fire, 1934c829c394165f981d49f05a9be228404d7a9398d4James Smart * and when the timeout then fires, it will be handled normally. 1935c829c394165f981d49f05a9be228404d7a9398d4James Smart * If the rport is not blocked, normal error handling continues. 1936c829c394165f981d49f05a9be228404d7a9398d4James Smart * 1937c829c394165f981d49f05a9be228404d7a9398d4James Smart * Notes: 1938c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine assumes no locks are held on entry. 1939eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 1940242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboestatic enum blk_eh_timer_return 1941c829c394165f981d49f05a9be228404d7a9398d4James Smartfc_timed_out(struct scsi_cmnd *scmd) 1942c829c394165f981d49f05a9be228404d7a9398d4James Smart{ 1943c829c394165f981d49f05a9be228404d7a9398d4James Smart struct fc_rport *rport = starget_to_rport(scsi_target(scmd->device)); 1944c829c394165f981d49f05a9be228404d7a9398d4James Smart 1945c829c394165f981d49f05a9be228404d7a9398d4James Smart if (rport->port_state == FC_PORTSTATE_BLOCKED) 1946242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboe return BLK_EH_RESET_TIMER; 1947c829c394165f981d49f05a9be228404d7a9398d4James Smart 1948242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboe return BLK_EH_NOT_HANDLED; 1949c829c394165f981d49f05a9be228404d7a9398d4James Smart} 1950c829c394165f981d49f05a9be228404d7a9398d4James Smart 19515c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com/* 1952bda232531f0c117921690ee3c060953c8f12e5a1James Smart * Called by fc_user_scan to locate an rport on the shost that 1953bda232531f0c117921690ee3c060953c8f12e5a1James Smart * matches the channel and target id, and invoke scsi_scan_target() 1954bda232531f0c117921690ee3c060953c8f12e5a1James Smart * on the rport. 19555c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com */ 1956bda232531f0c117921690ee3c060953c8f12e5a1James Smartstatic void 1957bda232531f0c117921690ee3c060953c8f12e5a1James Smartfc_user_scan_tgt(struct Scsi_Host *shost, uint channel, uint id, uint lun) 19585c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com{ 19595c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com struct fc_rport *rport; 1960bda232531f0c117921690ee3c060953c8f12e5a1James Smart unsigned long flags; 1961bda232531f0c117921690ee3c060953c8f12e5a1James Smart 1962bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_lock_irqsave(shost->host_lock, flags); 19635c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 1964e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig list_for_each_entry(rport, &fc_host_rports(shost), peers) { 1965e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig if (rport->scsi_target_id == -1) 1966e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig continue; 19675c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 19680d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke if (rport->port_state != FC_PORTSTATE_ONLINE) 19690d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke continue; 19700d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke 1971bda232531f0c117921690ee3c060953c8f12e5a1James Smart if ((channel == rport->channel) && 1972bda232531f0c117921690ee3c060953c8f12e5a1James Smart (id == rport->scsi_target_id)) { 1973bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_unlock_irqrestore(shost->host_lock, flags); 1974bda232531f0c117921690ee3c060953c8f12e5a1James Smart scsi_scan_target(&rport->dev, channel, id, lun, 1); 1975bda232531f0c117921690ee3c060953c8f12e5a1James Smart return; 1976e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig } 1977e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig } 1978e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig 1979bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_unlock_irqrestore(shost->host_lock, flags); 1980bda232531f0c117921690ee3c060953c8f12e5a1James Smart} 1981bda232531f0c117921690ee3c060953c8f12e5a1James Smart 1982bda232531f0c117921690ee3c060953c8f12e5a1James Smart/* 1983bda232531f0c117921690ee3c060953c8f12e5a1James Smart * Called via sysfs scan routines. Necessary, as the FC transport 1984bda232531f0c117921690ee3c060953c8f12e5a1James Smart * wants to place all target objects below the rport object. So this 1985bda232531f0c117921690ee3c060953c8f12e5a1James Smart * routine must invoke the scsi_scan_target() routine with the rport 1986bda232531f0c117921690ee3c060953c8f12e5a1James Smart * object as the parent. 1987bda232531f0c117921690ee3c060953c8f12e5a1James Smart */ 1988bda232531f0c117921690ee3c060953c8f12e5a1James Smartstatic int 1989bda232531f0c117921690ee3c060953c8f12e5a1James Smartfc_user_scan(struct Scsi_Host *shost, uint channel, uint id, uint lun) 1990bda232531f0c117921690ee3c060953c8f12e5a1James Smart{ 1991bda232531f0c117921690ee3c060953c8f12e5a1James Smart uint chlo, chhi; 1992bda232531f0c117921690ee3c060953c8f12e5a1James Smart uint tgtlo, tgthi; 1993bda232531f0c117921690ee3c060953c8f12e5a1James Smart 1994bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) || 1995bda232531f0c117921690ee3c060953c8f12e5a1James Smart ((id != SCAN_WILD_CARD) && (id >= shost->max_id)) || 1996bda232531f0c117921690ee3c060953c8f12e5a1James Smart ((lun != SCAN_WILD_CARD) && (lun > shost->max_lun))) 1997bda232531f0c117921690ee3c060953c8f12e5a1James Smart return -EINVAL; 1998bda232531f0c117921690ee3c060953c8f12e5a1James Smart 1999bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (channel == SCAN_WILD_CARD) { 2000bda232531f0c117921690ee3c060953c8f12e5a1James Smart chlo = 0; 2001bda232531f0c117921690ee3c060953c8f12e5a1James Smart chhi = shost->max_channel + 1; 2002bda232531f0c117921690ee3c060953c8f12e5a1James Smart } else { 2003bda232531f0c117921690ee3c060953c8f12e5a1James Smart chlo = channel; 2004bda232531f0c117921690ee3c060953c8f12e5a1James Smart chhi = channel + 1; 2005bda232531f0c117921690ee3c060953c8f12e5a1James Smart } 2006bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2007bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (id == SCAN_WILD_CARD) { 2008bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgtlo = 0; 2009bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgthi = shost->max_id; 2010bda232531f0c117921690ee3c060953c8f12e5a1James Smart } else { 2011bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgtlo = id; 2012bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgthi = id + 1; 2013bda232531f0c117921690ee3c060953c8f12e5a1James Smart } 2014bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2015bda232531f0c117921690ee3c060953c8f12e5a1James Smart for ( ; chlo < chhi; chlo++) 2016bda232531f0c117921690ee3c060953c8f12e5a1James Smart for ( ; tgtlo < tgthi; tgtlo++) 2017bda232531f0c117921690ee3c060953c8f12e5a1James Smart fc_user_scan_tgt(shost, chlo, tgtlo, lun); 2018bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2019e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig return 0; 20205c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com} 20215c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 20227525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonoristatic int fc_tsk_mgmt_response(struct Scsi_Host *shost, u64 nexus, u64 tm_id, 20237525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori int result) 20247525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori{ 20257525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori struct fc_internal *i = to_fc_internal(shost->transportt); 20267525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori return i->f->tsk_mgmt_response(shost, nexus, tm_id, result); 20277525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori} 20287525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 20297525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonoristatic int fc_it_nexus_response(struct Scsi_Host *shost, u64 nexus, int result) 20307525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori{ 20317525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori struct fc_internal *i = to_fc_internal(shost->transportt); 20327525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori return i->f->it_nexus_response(shost, nexus, result); 20337525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori} 20347525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 20351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct scsi_transport_template * 20361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_attach_transport(struct fc_function_template *ft) 20371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int count; 203924669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen struct fc_internal *i = kzalloc(sizeof(struct fc_internal), 204024669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen GFP_KERNEL); 20411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!i)) 20431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 20441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.attrs = &i->starget_attrs[0]; 20461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.class = &fc_transport_class.class; 20471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.match = fc_target_match; 20481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_size = sizeof(struct fc_starget_attrs); 20491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->t.target_attrs); 20501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.attrs = &i->host_attrs[0]; 20521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.class = &fc_host_class.class; 20531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.match = fc_host_match; 20541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_size = sizeof(struct fc_host_attrs); 20551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ft->get_fc_host_stats) 20561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.statistics = &fc_statistics_group; 20571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->t.host_attrs); 20581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.attrs = &i->rport_attrs[0]; 20601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.class = &fc_rport_class.class; 20611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.match = fc_rport_match; 20621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->rport_attr_cont); 20631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2064a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.attrs = &i->vport_attrs[0]; 2065a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.class = &fc_vport_class.class; 2066a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.match = fc_vport_match; 2067a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_container_register(&i->vport_attr_cont); 2068a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 20691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f = ft; 20701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Transport uses the shost workq for scsi scanning */ 20721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.create_work_queue = 1; 20735c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 2074c829c394165f981d49f05a9be228404d7a9398d4James Smart i->t.eh_timed_out = fc_timed_out; 2075c829c394165f981d49f05a9be228404d7a9398d4James Smart 2076e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig i->t.user_scan = fc_user_scan; 20779ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 20787525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori /* target-mode drivers' functions */ 20797525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori i->t.tsk_mgmt_response = fc_tsk_mgmt_response; 20807525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori i->t.it_nexus_response = fc_it_nexus_response; 20817525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup SCSI Target Attributes. 20841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = 0; 20861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(node_name); 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(port_name); 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(port_id); 20891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_STARGET_NUM_ATTRS); 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = NULL; 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup SCSI Host Attributes. 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count=0; 20991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(node_name); 21001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_name); 21016b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmann SETUP_HOST_ATTRIBUTE_RD(permanent_port_name); 21021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_classes); 21031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_fc4s); 21041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_speeds); 21051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(maxframe_size); 2106a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_create) { 2107a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_HOST_ATTRIBUTE_RD_NS(max_npiv_vports); 2108a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_HOST_ATTRIBUTE_RD_NS(npiv_vports_inuse); 2109a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 21101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(serial_number); 21111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_id); 21131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_type); 21141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_state); 21151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(active_fc4s); 21161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(speed); 21171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(fabric_name); 2118016131b8fffa1085b4ad165ab228116fdc278ebeJames Smart SETUP_HOST_ATTRIBUTE_RD(symbolic_name); 2119b8d08210126a7b769b857720a59721a453a57a1eJames Smart SETUP_HOST_ATTRIBUTE_RW(system_hostname); 21201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Transport-managed attributes */ 21221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_HOST_ATTRIBUTE_RW(tgtid_bind_type); 212391ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez if (ft->issue_fc_host_lip) 212491ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez SETUP_PRIVATE_HOST_ATTRIBUTE_RW(issue_lip); 2125a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_create) 2126a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_create); 2127a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_delete) 2128a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_delete); 21291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_HOST_NUM_ATTRS); 21311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = NULL; 21331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup Remote Port Attributes. 21361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count=0; 21381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RD(maxframe_size); 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RD(supported_classes); 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RW(dev_loss_tmo); 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(node_name); 21421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_name); 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_id); 21441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(roles); 21451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_state); 21461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(scsi_target_id); 2147fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo); 21481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_RPORT_NUM_ATTRS); 21501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = NULL; 21521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2153a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 2154a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Setup Virtual Port Attributes. 2155a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 2156a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count=0; 2157a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_state); 2158a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_last_state); 2159a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(node_name); 2160a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(port_name); 2161a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(roles); 2162a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_type); 2163a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_RW(symbolic_name); 2164a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_WR(vport_delete); 2165a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_WR(vport_disable); 2166a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2167a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart BUG_ON(count > FC_VPORT_NUM_ATTRS); 2168a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2169a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = NULL; 2170a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t; 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_attach_transport); 21741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid fc_release_transport(struct scsi_transport_template *t) 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(t); 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->t.target_attrs); 21801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->t.host_attrs); 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->rport_attr_cont); 2182a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_container_unregister(&i->vport_attr_cont); 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(i); 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_release_transport); 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2188aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2189aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_queue_work - Queue work to the fc_host workqueue. 2190aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2191aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @work: Work to queue for execution. 2192aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2193aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * Return value: 2194a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * 1 - work queued for execution 2195a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * 0 - work is already queued 2196a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * -EINVAL - work queue doesn't exist 2197eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2198aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int 2199aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_queue_work(struct Scsi_Host *shost, struct work_struct *work) 2200aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2201aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (unlikely(!fc_host_work_q(shost))) { 2202aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2203aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to queue work, " 2204aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2205aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2206aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2207aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -EINVAL; 2208aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2209aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2210aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return queue_work(fc_host_work_q(shost), work); 2211aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2212aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2213aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2214aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_flush_work - Flush a fc_host's workqueue. 2215aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2216eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2217aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2218aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_flush_work(struct Scsi_Host *shost) 2219aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2220aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host_work_q(shost)) { 2221aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2222aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to flush work, " 2223aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2224aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2225aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return; 2226aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2227aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2228aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart flush_workqueue(fc_host_work_q(shost)); 2229aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2230aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2231aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2232aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_queue_devloss_work - Schedule work for the fc_host devloss workqueue. 2233aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2234aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @work: Work to queue for execution. 2235aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @delay: jiffies to delay the work queuing 2236aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2237aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * Return value: 22380f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * 1 on success / 0 already queued / < 0 for error 2239eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2240aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int 2241c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_queue_devloss_work(struct Scsi_Host *shost, struct delayed_work *work, 2242aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart unsigned long delay) 2243aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2244aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (unlikely(!fc_host_devloss_work_q(shost))) { 2245aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2246aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to queue work, " 2247aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2248aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2249aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2250aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -EINVAL; 2251aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2252aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2253aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return queue_delayed_work(fc_host_devloss_work_q(shost), work, delay); 2254aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2255aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2256aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2257aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_flush_devloss - Flush a fc_host's devloss workqueue. 2258aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2259eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2260aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2261aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_flush_devloss(struct Scsi_Host *shost) 2262aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2263aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host_devloss_work_q(shost)) { 2264aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2265aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to flush work, " 2266aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2267aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2268aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return; 2269aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2270aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2271aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart flush_workqueue(fc_host_devloss_work_q(shost)); 2272aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2273aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2276eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remove_host - called to terminate any fc_transport-related elements for a scsi host. 2277eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @shost: Which &Scsi_Host 22781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is expected to be called immediately preceeding the 22801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a driver's call to scsi_remove_host(). 22811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * WARNING: A driver utilizing the fc_transport, which fails to call 2283eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * this routine prior to scsi_remove_host(), will leave dangling 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * objects in /sys/class/fc_remote_ports. Access to any of these 22851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * objects can result in a system crash !!! 22861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 22871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 22881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2289eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 22901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 22911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remove_host(struct Scsi_Host *shost) 22921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2293a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport = NULL, *next_vport = NULL; 2294a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_rport *rport = NULL, *next_rport = NULL; 2295aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct workqueue_struct *work_q; 2296aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 2297a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 2298a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2299a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 2300a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2301a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* Remove any vports */ 23029ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers) 23039ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart fc_queue_work(shost, &vport->vport_delete_work); 23041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Remove any remote ports */ 23061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry_safe(rport, next_rport, 2307aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart &fc_host->rports, peers) { 2308aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 2309aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 2310aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 2311aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2312aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 23131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry_safe(rport, next_rport, 2314aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart &fc_host->rport_bindings, peers) { 2315aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 2316aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 2317aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 2318aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2319aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2320a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 2321a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2322aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all scan work items */ 2323aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_flush_work(shost); 2324aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2325aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all stgt delete, and rport delete work items, then kill it */ 2326aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->work_q) { 2327aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart work_q = fc_host->work_q; 2328aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q = NULL; 2329aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(work_q); 2330aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2331aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2332aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all devloss work items, then kill it */ 2333aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->devloss_work_q) { 2334aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart work_q = fc_host->devloss_work_q; 2335aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->devloss_work_q = NULL; 2336aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(work_q); 2337aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 23381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remove_host); 23401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christiestatic void fc_terminate_rport_io(struct fc_rport *rport) 2342fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie{ 2343fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie struct Scsi_Host *shost = rport_to_shost(rport); 2344fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie struct fc_internal *i = to_fc_internal(shost->transportt); 2345fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie 2346fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie /* Involve the LLDD if possible to terminate all io on the rport. */ 2347fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie if (i->f->terminate_rport_io) 2348fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie i->f->terminate_rport_io(rport); 2349fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie 2350fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie /* 2351fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie * must unblock to flush queued IO. The caller will have set 2352fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie * the port_state or flags, so that fc_remote_port_chkready will 2353fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie * fail IO. 2354fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie */ 2355fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie scsi_target_unblock(&rport->dev); 2356fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie} 2357aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2358aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2359aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_starget_delete - called to delete the scsi decendents of an rport 2360c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be operated on. 2361eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 2362eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Deletes target and all sdevs. 2363eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 236419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Comstatic void 2365c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_starget_delete(struct work_struct *work) 236619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com{ 2367c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 2368c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, stgt_delete_work); 236919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2370fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie fc_terminate_rport_io(rport); 237119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com scsi_remove_target(&rport->dev); 237219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com} 237319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2374aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2375aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2376aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_rport_final_delete - finish rport termination and delete it. 2377c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be deleted. 2378eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2379aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2380c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_rport_final_delete(struct work_struct *work) 2381aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2382c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 2383c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, rport_delete_work); 2384aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct device *dev = &rport->dev; 2385aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 23860f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 238792740b24ce6ddac6534fae985aab602548692186James Smart unsigned long flags; 23888798a694da59486e4a3ff0abeec183202fb34c20Michael Reed int do_callback = 0; 2389aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2390aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* 23919ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * if a scan is pending, flush the SCSI Host work_q so that 2392aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * that we can reclaim the rport scan work element. 2393aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart */ 2394aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (rport->flags & FC_RPORT_SCAN_PENDING) 2395aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_flush_work(shost); 2396aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2397fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie fc_terminate_rport_io(rport); 23989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 239992740b24ce6ddac6534fae985aab602548692186James Smart /* 240092740b24ce6ddac6534fae985aab602548692186James Smart * Cancel any outstanding timers. These should really exist 240192740b24ce6ddac6534fae985aab602548692186James Smart * only when rmmod'ing the LLDD and we're asking for 240292740b24ce6ddac6534fae985aab602548692186James Smart * immediate termination of the rports 240392740b24ce6ddac6534fae985aab602548692186James Smart */ 240492740b24ce6ddac6534fae985aab602548692186James Smart spin_lock_irqsave(shost->host_lock, flags); 240592740b24ce6ddac6534fae985aab602548692186James Smart if (rport->flags & FC_RPORT_DEVLOSS_PENDING) { 240692740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, flags); 240792740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 240892740b24ce6ddac6534fae985aab602548692186James Smart fc_flush_devloss(shost); 240992740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->dev_loss_work)) 241092740b24ce6ddac6534fae985aab602548692186James Smart fc_flush_devloss(shost); 241192740b24ce6ddac6534fae985aab602548692186James Smart spin_lock_irqsave(shost->host_lock, flags); 241292740b24ce6ddac6534fae985aab602548692186James Smart rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; 241392740b24ce6ddac6534fae985aab602548692186James Smart } 241492740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, flags); 241592740b24ce6ddac6534fae985aab602548692186James Smart 24160f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart /* Delete SCSI target and sdevs */ 24170f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->scsi_target_id != -1) 2418c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells fc_starget_delete(&rport->stgt_delete_work); 241992740b24ce6ddac6534fae985aab602548692186James Smart 242092740b24ce6ddac6534fae985aab602548692186James Smart /* 242192740b24ce6ddac6534fae985aab602548692186James Smart * Notify the driver that the rport is now dead. The LLDD will 242292740b24ce6ddac6534fae985aab602548692186James Smart * also guarantee that any communication to the rport is terminated 24234be98c0ca304c8a47998b29a7993664f71791250James Smart * 24244be98c0ca304c8a47998b29a7993664f71791250James Smart * Avoid this call if we already called it when we preserved the 24254be98c0ca304c8a47998b29a7993664f71791250James Smart * rport for the binding. 242692740b24ce6ddac6534fae985aab602548692186James Smart */ 24278798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_lock_irqsave(shost->host_lock, flags); 24284be98c0ca304c8a47998b29a7993664f71791250James Smart if (!(rport->flags & FC_RPORT_DEVLOSS_CALLBK_DONE) && 24298798a694da59486e4a3ff0abeec183202fb34c20Michael Reed (i->f->dev_loss_tmo_callbk)) { 24308798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->flags |= FC_RPORT_DEVLOSS_CALLBK_DONE; 24318798a694da59486e4a3ff0abeec183202fb34c20Michael Reed do_callback = 1; 24328798a694da59486e4a3ff0abeec183202fb34c20Michael Reed } 24338798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_unlock_irqrestore(shost->host_lock, flags); 24348798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 24358798a694da59486e4a3ff0abeec183202fb34c20Michael Reed if (do_callback) 24360f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart i->f->dev_loss_tmo_callbk(rport); 24370f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 24389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_remove(rport->rqst_q); 24399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 2440aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart transport_remove_device(dev); 2441aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart device_del(dev); 2442aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart transport_destroy_device(dev); 24433bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(&shost->shost_gendev); /* for fc_host->rport list */ 24443bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(dev); /* for self-reference */ 2445aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2446aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2447aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 24481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 24491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_rport_create - allocates and creates a remote FC port. 24501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @shost: scsi host the remote port is connected to. 24511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @channel: Channel on shost port connected to. 24521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ids: The world wide names, fc address, and FC4 port 24531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * roles for the remote port. 24541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 24551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Allocates and creates the remoter port structure, including the 24561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * class and sysfs creation. 24571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 24581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 24591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2460eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 246144818efbad185eea75adad0e8cab97650a7370abAdrian Bunkstatic struct fc_rport * 24621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_rport_create(struct Scsi_Host *shost, int channel, 24631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport_identifiers *ids) 24641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2465aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 24661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *fci = to_fc_internal(shost->transportt); 24671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport; 24681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev; 24691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 24701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 24711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t size; 24721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size = (sizeof(struct fc_rport) + fci->f->dd_fcrport_size); 247424669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen rport = kzalloc(size, GFP_KERNEL); 24751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!rport)) { 2476cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison printk(KERN_ERR "%s: allocation failure\n", __func__); 24771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 24781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 24791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->maxframe_size = -1; 24811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->supported_classes = FC_COS_UNSPECIFIED; 24821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->dev_loss_tmo = fc_dev_loss_tmo; 24831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->node_name, &ids->node_name, sizeof(rport->node_name)); 24841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->port_name, &ids->port_name, sizeof(rport->port_name)); 24851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = ids->port_id; 24861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = ids->roles; 24871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_ONLINE; 24881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fci->f->dd_fcrport_size) 24891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->dd_data = &rport[1]; 24901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->channel = channel; 24910f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = -1; 24921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2493c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_DELAYED_WORK(&rport->dev_loss_work, fc_timeout_deleted_rport); 2494c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_DELAYED_WORK(&rport->fail_io_work, fc_timeout_fail_rport_io); 2495c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->scan_work, fc_scsi_scan_rport); 2496c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->stgt_delete_work, fc_starget_delete); 2497c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->rport_delete_work, fc_rport_final_delete); 24981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 25001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->number = fc_host->next_rport_number++; 2502a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles & FC_PORT_ROLE_FCP_TARGET) 25031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->scsi_target_id = fc_host->next_target_id++; 25041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 25051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->scsi_target_id = -1; 2506aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_add_tail(&rport->peers, &fc_host->rports); 25073bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart get_device(&shost->shost_gendev); /* for fc_host->rport list */ 25081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev = &rport->dev; 25123bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart device_initialize(dev); /* takes self reference */ 25133bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart dev->parent = get_device(&shost->shost_gendev); /* parent reference */ 25141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->release = fc_rport_dev_release; 251571610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_set_name(dev, "rport-%d:%d-%d", 251671610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers shost->host_no, channel, rport->number); 25171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_setup_device(dev); 25181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = device_add(dev); 25201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) { 25211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "FC Remote Port device_add failed\n"); 25221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto delete_rport; 25231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_add_device(dev); 25251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_configure_device(dev); 25261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_rportadd(shost, rport); 25289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* ignore any bsg add error - we just can't do sgio */ 25299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 2530a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles & FC_PORT_ROLE_FCP_TARGET) { 25311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 2532aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 25331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 2534aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 25351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 25371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdelete_rport: 25391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_destroy_device(dev); 25401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 25411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_del(&rport->peers); 25423bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(&shost->shost_gendev); /* for fc_host->rport list */ 25431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 25441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(dev->parent); 25451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(rport); 25461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 25471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2550eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_add - notify fc transport of the existence of a remote FC port. 25511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @shost: scsi host the remote port is connected to. 25521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @channel: Channel on shost port connected to. 25531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ids: The world wide names, fc address, and FC4 port 25541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * roles for the remote port. 25551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LLDD calls this routine to notify the transport of the existence 25571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of a remote port. The LLDD provides the unique identifiers (wwpn,wwn) 25581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the port, it's FC address (port_id), and the FC4 roles that are 25591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * active for the port. 25601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For ports that are FCP targets (aka scsi targets), the FC transport 25621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * maintains consistent target id bindings on behalf of the LLDD. 25631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A consistent target id binding is an assignment of a target id to 25641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a remote port identifier, which persists while the scsi host is 25651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attached. The remote port can disappear, then later reappear, and 25661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it's target id assignment remains the same. This allows for shifts 25671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in FC addressing (if binding by wwpn or wwnn) with no apparent 25681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * changes to the scsi subsystem which is based on scsi host number and 25691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target id values. Bindings are only valid during the attachment of 25701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the scsi host. If the host detaches, then later re-attaches, target 25711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * id bindings may change. 25721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is responsible for returning a remote port structure. 25741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The routine will search the list of remote ports it maintains 25751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * internally on behalf of consistent target id mappings. If found, the 25761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * remote port structure will be reused. Otherwise, a new remote port 25771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * structure will be allocated. 25781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Whenever a remote port is allocated, a new fc_remote_port class 25801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device is created. 25811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should not be called from interrupt context. 25831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 25851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2586eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 25871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fc_rport * 25881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_add(struct Scsi_Host *shost, int channel, 25891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport_identifiers *ids) 25901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 259119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct fc_internal *fci = to_fc_internal(shost->transportt); 2592aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 25931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport; 25941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 25951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int match = 0; 25961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2597aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* ensure any stgt delete functions are done */ 2598aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_work(shost); 2599aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 260019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 260119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Search the list of "active" rports, for an rport that has been 260219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * deleted, but we've held off the real delete while the target 260319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * is in a "blocked" state. 260419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 260519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_lock_irqsave(shost->host_lock, flags); 260619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2607aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_for_each_entry(rport, &fc_host->rports, peers) { 260819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 260919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) && 261019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->channel == channel)) { 261119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2612aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart switch (fc_host->tgtid_bind_type) { 261319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_WWPN: 261419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_NONE: 261519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_name == ids->port_name) 261619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 261719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 261819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_WWNN: 261919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->node_name == ids->node_name) 262019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 262119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 262219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_ID: 262319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_id == ids->port_id) 262419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 262519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 262619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 262719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 262819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (match) { 262919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 263019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memcpy(&rport->node_name, &ids->node_name, 263119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com sizeof(rport->node_name)); 263219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memcpy(&rport->port_name, &ids->port_name, 263319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com sizeof(rport->port_name)); 263419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_id = ids->port_id; 263519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 263619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_state = FC_PORTSTATE_ONLINE; 263719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->roles = ids->roles; 263819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 263919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 264019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 264119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (fci->f->dd_fcrport_size) 264219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memset(rport->dd_data, 0, 264319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com fci->f->dd_fcrport_size); 264419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 264519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 264692740b24ce6ddac6534fae985aab602548692186James Smart * If we were not a target, cancel the 264792740b24ce6ddac6534fae985aab602548692186James Smart * io terminate and rport timers, and 264892740b24ce6ddac6534fae985aab602548692186James Smart * we're done. 264992740b24ce6ddac6534fae985aab602548692186James Smart * 265092740b24ce6ddac6534fae985aab602548692186James Smart * If we were a target, but our new role 265192740b24ce6ddac6534fae985aab602548692186James Smart * doesn't indicate a target, leave the 265292740b24ce6ddac6534fae985aab602548692186James Smart * timers running expecting the role to 265392740b24ce6ddac6534fae985aab602548692186James Smart * change as the target fully logs in. If 265492740b24ce6ddac6534fae985aab602548692186James Smart * it doesn't, the target will be torn down. 265592740b24ce6ddac6534fae985aab602548692186James Smart * 265692740b24ce6ddac6534fae985aab602548692186James Smart * If we were a target, and our role shows 265792740b24ce6ddac6534fae985aab602548692186James Smart * we're still a target, cancel the timers 265892740b24ce6ddac6534fae985aab602548692186James Smart * and kick off a scan. 265919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 266019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 266192740b24ce6ddac6534fae985aab602548692186James Smart /* was a target, not in roles */ 266292740b24ce6ddac6534fae985aab602548692186James Smart if ((rport->scsi_target_id != -1) && 2663a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart (!(ids->roles & FC_PORT_ROLE_FCP_TARGET))) 266492740b24ce6ddac6534fae985aab602548692186James Smart return rport; 266519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 266619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 266792740b24ce6ddac6534fae985aab602548692186James Smart * Stop the fail io and dev_loss timers. 266892740b24ce6ddac6534fae985aab602548692186James Smart * If they flush, the port_state will 266992740b24ce6ddac6534fae985aab602548692186James Smart * be checked and will NOOP the function. 267019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 26710f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 26720f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_flush_devloss(shost); 267392740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->dev_loss_work)) 2674aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_devloss(shost); 2675aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2676aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 2677aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2678fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | 26794be98c0ca304c8a47998b29a7993664f71791250James Smart FC_RPORT_DEVLOSS_PENDING | 26804be98c0ca304c8a47998b29a7993664f71791250James Smart FC_RPORT_DEVLOSS_CALLBK_DONE); 268119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 268292740b24ce6ddac6534fae985aab602548692186James Smart /* if target, initiate a scan */ 268392740b24ce6ddac6534fae985aab602548692186James Smart if (rport->scsi_target_id != -1) { 268492740b24ce6ddac6534fae985aab602548692186James Smart rport->flags |= FC_RPORT_SCAN_PENDING; 268592740b24ce6ddac6534fae985aab602548692186James Smart scsi_queue_work(shost, 268692740b24ce6ddac6534fae985aab602548692186James Smart &rport->scan_work); 268792740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, 268892740b24ce6ddac6534fae985aab602548692186James Smart flags); 268992740b24ce6ddac6534fae985aab602548692186James Smart scsi_target_unblock(&rport->dev); 269092740b24ce6ddac6534fae985aab602548692186James Smart } else 269192740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, 269292740b24ce6ddac6534fae985aab602548692186James Smart flags); 2693a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart 26949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_goose_queue(rport); 26959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 269619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return rport; 269719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 269819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 269919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 270019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 270192740b24ce6ddac6534fae985aab602548692186James Smart /* 270292740b24ce6ddac6534fae985aab602548692186James Smart * Search the bindings array 270392740b24ce6ddac6534fae985aab602548692186James Smart * Note: if never a FCP target, you won't be on this list 270492740b24ce6ddac6534fae985aab602548692186James Smart */ 2705aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->tgtid_bind_type != FC_TGTID_BIND_NONE) { 27061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* search for a matching consistent binding */ 27081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2709aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_for_each_entry(rport, &fc_host->rport_bindings, 27101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds peers) { 27111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->channel != channel) 27121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 27131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2714aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart switch (fc_host->tgtid_bind_type) { 27151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWPN: 27161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->port_name == ids->port_name) 27171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 27181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWNN: 27201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->node_name == ids->node_name) 27211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 27221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_ID: 27241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->port_id == ids->port_id) 27251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 27261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_NONE: /* to keep compiler happy */ 27281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match) { 2732aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_move_tail(&rport->peers, &fc_host->rports); 27331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match) { 27381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->node_name, &ids->node_name, 27391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(rport->node_name)); 27401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->port_name, &ids->port_name, 27411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(rport->port_name)); 27421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = ids->port_id; 27431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = ids->roles; 27441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_ONLINE; 2745fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; 27461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 274719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (fci->f->dd_fcrport_size) 274819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memset(rport->dd_data, 0, 274919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com fci->f->dd_fcrport_size); 275019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2751a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles & FC_PORT_ROLE_FCP_TARGET) { 27521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 2753aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 27541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 2755a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2756a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart scsi_target_unblock(&rport->dev); 2757a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart } else 2758a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 27591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 27611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 276419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 276519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 27661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* No consistent binding found - create new remote port entry */ 27671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport = fc_rport_create(shost, channel, ids); 27681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 27701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 27711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_add); 27721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2775eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_delete - notifies the fc transport that a remote port is no longer in existence. 27761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port that no longer exists 27771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LLDD calls this routine to notify the transport that a remote 27791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * port is no longer part of the topology. Note: Although a port 27801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * may no longer be part of the topology, it may persist in the remote 278119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * ports displayed by the fc_host. We do this under 2 conditions: 2782eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 1) If the port was a scsi target, we delay its deletion by "blocking" it. 278319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * This allows the port to temporarily disappear, then reappear without 278419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * disrupting the SCSI device tree attached to it. During the "blocked" 278519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * period the port will still exist. 2786eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 2) If the port was a scsi target and disappears for longer than we 278719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * expect, we'll delete the port and the tear down the SCSI device tree 278819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * attached to it. However, we want to semi-persist the target id assigned 278919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * to that port if it eventually does exist. The port structure will 279019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * remain (although with minimal information) so that the target id 279119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * bindings remails. 27921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If the remote port is not an FCP Target, it will be fully torn down 27941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and deallocated, including the fc_remote_port class device. 27951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 279619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port is an FCP Target, the port will be placed in a 279719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * temporary blocked state. From the LLDD's perspective, the rport no 279819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * longer exists. From the SCSI midlayer's perspective, the SCSI target 279919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * exists, but all sdevs on it are blocked from further I/O. The following 2800eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * is then expected. 2801eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 280219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port does not return (signaled by a LLDD call to 280319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * fc_remote_port_add()) within the dev_loss_tmo timeout, then the 280419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi target is removed - killing all outstanding i/o and removing the 280519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi devices attached ot it. The port structure will be marked Not 280619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Present and be partially cleared, leaving only enough information to 280719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * recognize the remote port relative to the scsi target id binding if 280819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * it later appears. The port will remain as long as there is a valid 280919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * binding (e.g. until the user changes the binding type or unloads the 281019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi host with the binding). 28111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 281219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port returns within the dev_loss_tmo value (and matches 281319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * according to the target id binding type), the port structure will be 281419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * reused. If it is no longer a SCSI target, the target will be torn 281519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * down. If it continues to be a SCSI target, then the target will be 281619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * unblocked (allowing i/o to be resumed), and a scan will be activated 281719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * to ensure that all luns are detected. 281819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * 281919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Called from normal process context only - cannot be called from interrupt. 28201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 28211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 28221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2823eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 28241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 28251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_delete(struct fc_rport *rport) 28261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2827aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 282819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com int timeout = rport->dev_loss_tmo; 2829aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart unsigned long flags; 2830aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2831aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* 2832aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * No need to flush the fc_host work_q's, as all adds are synchronous. 2833aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2834aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * We do need to reclaim the rport scan work element, so eventually 2835aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * (in fc_rport_final_delete()) we'll flush the scsi host work_q if 2836aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * there's still a scan pending. 2837aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart */ 2838aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2839aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 28401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 284192740b24ce6ddac6534fae985aab602548692186James Smart if (rport->port_state != FC_PORTSTATE_ONLINE) { 2842aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 28431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 28441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 284692740b24ce6ddac6534fae985aab602548692186James Smart /* 284792740b24ce6ddac6534fae985aab602548692186James Smart * In the past, we if this was not an FCP-Target, we would 284892740b24ce6ddac6534fae985aab602548692186James Smart * unconditionally just jump to deleting the rport. 284992740b24ce6ddac6534fae985aab602548692186James Smart * However, rports can be used as node containers by the LLDD, 285092740b24ce6ddac6534fae985aab602548692186James Smart * and its not appropriate to just terminate the rport at the 285192740b24ce6ddac6534fae985aab602548692186James Smart * first sign of a loss in connectivity. The LLDD may want to 285292740b24ce6ddac6534fae985aab602548692186James Smart * send ELS traffic to re-validate the login. If the rport is 285392740b24ce6ddac6534fae985aab602548692186James Smart * immediately deleted, it makes it inappropriate for a node 285492740b24ce6ddac6534fae985aab602548692186James Smart * container. 285592740b24ce6ddac6534fae985aab602548692186James Smart * So... we now unconditionally wait dev_loss_tmo before 285692740b24ce6ddac6534fae985aab602548692186James Smart * destroying an rport. 285792740b24ce6ddac6534fae985aab602548692186James Smart */ 285892740b24ce6ddac6534fae985aab602548692186James Smart 2859aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_BLOCKED; 2860aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2861aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_DEVLOSS_PENDING; 2862aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2863aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2864aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 28657525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori if (rport->roles & FC_PORT_ROLE_FCP_INITIATOR && 28667525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori shost->active_mode & MODE_TARGET) 28677525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori fc_tgt_it_nexus_destroy(shost, (unsigned long)rport); 28687525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 286919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com scsi_target_block(&rport->dev); 28701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28710f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart /* see if we need to kill io faster than waiting for device loss */ 28720f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((rport->fast_io_fail_tmo != -1) && 2873fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie (rport->fast_io_fail_tmo < timeout)) 28740f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_queue_devloss_work(shost, &rport->fail_io_work, 28750f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo * HZ); 28760f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 287719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* cap the length the devices can be blocked until they are deleted */ 2878aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_devloss_work(shost, &rport->dev_loss_work, timeout * HZ); 28791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 28801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_delete); 28811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2883eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_rolechg - notifies the fc transport that the roles on a remote may have changed. 28841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port that changed. 2885eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @roles: New roles for this port. 28861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2887eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Description: The LLDD calls this routine to notify the transport that the 2888eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * roles on a remote port may have changed. The largest effect of this is 28891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if a port now becomes a FCP Target, it must be allocated a 28901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi target id. If the port is no longer a FCP target, any 28911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi target id value assigned to it will persist in case the 28921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * role changes back to include FCP Target. No changes in the scsi 28931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * midlayer will be invoked if the role changes (in the expectation 28941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that the role will be resumed. If it doesn't normal error processing 28951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * will take place). 28961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 28971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should not be called from interrupt context. 28981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 28991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 29001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2901eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 29021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 29031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_rolechg(struct fc_rport *rport, u32 roles) 29041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 29051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); 2906aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 29071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 29081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int create = 0; 29097525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori int ret; 29101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 2912a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (roles & FC_PORT_ROLE_FCP_TARGET) { 291319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->scsi_target_id == -1) { 291419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->scsi_target_id = fc_host->next_target_id++; 291519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com create = 1; 2916a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else if (!(rport->roles & FC_PORT_ROLE_FCP_TARGET)) 291719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com create = 1; 29187525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori } else if (shost->active_mode & MODE_TARGET) { 29197525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori ret = fc_tgt_it_nexus_create(shost, (unsigned long)rport, 29207525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori (char *)&rport->node_name); 29217525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori if (ret) 29227525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori printk(KERN_ERR "FC Remore Port tgt nexus failed %d\n", 29237525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori ret); 29241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 29251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 292619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->roles = roles; 292719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2928aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2929aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 293019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (create) { 293119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 293219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * There may have been a delete timer running on the 293319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * port. Ensure that it is cancelled as we now know 293419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * the port is an FCP Target. 293519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Note: we know the rport is exists and in an online 293619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * state as the LLDD would not have had an rport 293719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * reference to pass us. 293819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * 293919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Take no action on the del_timer failure as the state 294019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * machine state change will validate the 294119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * transaction. 294219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 29430f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 29440f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_flush_devloss(shost); 294519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (!cancel_delayed_work(&rport->dev_loss_work)) 2946aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_devloss(shost); 2947aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2948aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 2949fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | 2950fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie FC_RPORT_DEVLOSS_PENDING); 2951aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2952aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2953aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* ensure any stgt delete functions are done */ 2954aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_work(shost); 295519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 29561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 2957aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 2958aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 29591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 2960aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2961a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart scsi_target_unblock(&rport->dev); 296219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 29631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 29641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_rolechg); 29651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2967eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_timeout_deleted_rport - Timeout handler for a deleted remote port. 296892740b24ce6ddac6534fae985aab602548692186James Smart * @work: rport target that failed to reappear in the allotted time. 2969eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 2970eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Description: An attempt to delete a remote port blocks, and if it fails 2971eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * to return in the allotted time this gets called. 2972eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 29731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 2974c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_timeout_deleted_rport(struct work_struct *work) 29751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2976c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 2977c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, dev_loss_work.work); 297819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct Scsi_Host *shost = rport_to_shost(rport); 29794be98c0ca304c8a47998b29a7993664f71791250James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 2980aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 298119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com unsigned long flags; 29828798a694da59486e4a3ff0abeec183202fb34c20Michael Reed int do_callback = 0; 29831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 298419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_lock_irqsave(shost->host_lock, flags); 29851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2986aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; 2987aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 29881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 298992740b24ce6ddac6534fae985aab602548692186James Smart * If the port is ONLINE, then it came back. If it was a SCSI 299092740b24ce6ddac6534fae985aab602548692186James Smart * target, validate it still is. If not, tear down the 299192740b24ce6ddac6534fae985aab602548692186James Smart * scsi_target on it. 29921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2993aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if ((rport->port_state == FC_PORTSTATE_ONLINE) && 299492740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) && 2995a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart !(rport->roles & FC_PORT_ROLE_FCP_TARGET)) { 299619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 2997aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "blocked FC remote port time out: no longer" 2998aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart " a FCP target, removing starget\n"); 2999aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 3000a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart scsi_target_unblock(&rport->dev); 3001a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart fc_queue_work(shost, &rport->stgt_delete_work); 300219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 300319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 30041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 300592740b24ce6ddac6534fae985aab602548692186James Smart /* NOOP state - we're flushing workq's */ 300619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_state != FC_PORTSTATE_BLOCKED) { 300719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 300819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 300992740b24ce6ddac6534fae985aab602548692186James Smart "blocked FC remote port time out: leaving" 301092740b24ce6ddac6534fae985aab602548692186James Smart " rport%s alone\n", 301192740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) ? " and starget" : ""); 301219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 301319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 30141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 301592740b24ce6ddac6534fae985aab602548692186James Smart if ((fc_host->tgtid_bind_type == FC_TGTID_BIND_NONE) || 301692740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id == -1)) { 3017aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 3018aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 301919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 302092740b24ce6ddac6534fae985aab602548692186James Smart "blocked FC remote port time out: removing" 302192740b24ce6ddac6534fae985aab602548692186James Smart " rport%s\n", 302292740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) ? " and starget" : ""); 3023aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 3024aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 302519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 302619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 30271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 302819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 302919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com "blocked FC remote port time out: removing target and " 303019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com "saving binding\n"); 303119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 3032aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_move_tail(&rport->peers, &fc_host->rport_bindings); 30331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 30341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 303519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Note: We do not remove or clear the hostdata area. This allows 303619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * host-specific target data to persist along with the 303719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi_target_id. It's up to the host to manage it's hostdata area. 30381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 30391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 304019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 304119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Reinitialize port attributes that may change if the port comes back. 304219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 304319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->maxframe_size = -1; 304419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->supported_classes = FC_COS_UNSPECIFIED; 3045a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart rport->roles = FC_PORT_ROLE_UNKNOWN; 3046aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_NOTPRESENT; 3047fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; 30481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3049f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart /* 3050f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * Pre-emptively kill I/O rather than waiting for the work queue 3051f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * item to teardown the starget. (FCOE libFC folks prefer this 3052f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * and to have the rport_port_id still set when it's done). 3053f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart */ 3054f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3055f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart fc_terminate_rport_io(rport); 3056f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart 30578798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_lock_irqsave(shost->host_lock, flags); 30588798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 30598798a694da59486e4a3ff0abeec183202fb34c20Michael Reed if (rport->port_state == FC_PORTSTATE_NOTPRESENT) { /* still missing */ 30608798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 30618798a694da59486e4a3ff0abeec183202fb34c20Michael Reed /* remove the identifiers that aren't used in the consisting binding */ 30628798a694da59486e4a3ff0abeec183202fb34c20Michael Reed switch (fc_host->tgtid_bind_type) { 30638798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_BY_WWPN: 30648798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->node_name = -1; 30658798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_id = -1; 30668798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 30678798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_BY_WWNN: 30688798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_name = -1; 30698798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_id = -1; 30708798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 30718798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_BY_ID: 30728798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->node_name = -1; 30738798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_name = -1; 30748798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 30758798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_NONE: /* to keep compiler happy */ 30768798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 30778798a694da59486e4a3ff0abeec183202fb34c20Michael Reed } 30788798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 30798798a694da59486e4a3ff0abeec183202fb34c20Michael Reed /* 30808798a694da59486e4a3ff0abeec183202fb34c20Michael Reed * As this only occurs if the remote port (scsi target) 30818798a694da59486e4a3ff0abeec183202fb34c20Michael Reed * went away and didn't come back - we'll remove 30828798a694da59486e4a3ff0abeec183202fb34c20Michael Reed * all attached scsi devices. 30838798a694da59486e4a3ff0abeec183202fb34c20Michael Reed */ 30848798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->flags |= FC_RPORT_DEVLOSS_CALLBK_DONE; 30858798a694da59486e4a3ff0abeec183202fb34c20Michael Reed fc_queue_work(shost, &rport->stgt_delete_work); 30868798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 30878798a694da59486e4a3ff0abeec183202fb34c20Michael Reed do_callback = 1; 308819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 308919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 30908798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_unlock_irqrestore(shost->host_lock, flags); 30914be98c0ca304c8a47998b29a7993664f71791250James Smart 30924be98c0ca304c8a47998b29a7993664f71791250James Smart /* 30934be98c0ca304c8a47998b29a7993664f71791250James Smart * Notify the driver that the rport is now dead. The LLDD will 30944be98c0ca304c8a47998b29a7993664f71791250James Smart * also guarantee that any communication to the rport is terminated 30954be98c0ca304c8a47998b29a7993664f71791250James Smart * 30964be98c0ca304c8a47998b29a7993664f71791250James Smart * Note: we set the CALLBK_DONE flag above to correspond 30974be98c0ca304c8a47998b29a7993664f71791250James Smart */ 30988798a694da59486e4a3ff0abeec183202fb34c20Michael Reed if (do_callback && i->f->dev_loss_tmo_callbk) 30994be98c0ca304c8a47998b29a7993664f71791250James Smart i->f->dev_loss_tmo_callbk(rport); 31001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 31011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31024be98c0ca304c8a47998b29a7993664f71791250James Smart 31031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3104eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_timeout_fail_rport_io - Timeout handler for a fast io failing on a disconnected SCSI target. 3105c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: rport to terminate io on. 31060f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * 31070f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * Notes: Only requests the failure of the io, not that all are flushed 31080f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * prior to returning. 3109eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 31100f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic void 3111c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_timeout_fail_rport_io(struct work_struct *work) 31120f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 3113c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 3114c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, fail_io_work.work); 31150f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 31160f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->port_state != FC_PORTSTATE_BLOCKED) 31170f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return; 31180f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 3119fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags |= FC_RPORT_FAST_FAIL_TIMEDOUT; 3120fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie fc_terminate_rport_io(rport); 31210f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 31220f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 31230f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart/** 31241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_scsi_scan_rport - called to perform a scsi scan on a remote port. 3125c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be scanned. 3126eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 31271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 3128c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_scsi_scan_rport(struct work_struct *work) 31291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3130c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 3131c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, scan_work); 3132aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 313303f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt struct fc_internal *i = to_fc_internal(shost->transportt); 313442e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com unsigned long flags; 313542e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 3136aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if ((rport->port_state == FC_PORTSTATE_ONLINE) && 313703f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt (rport->roles & FC_PORT_ROLE_FCP_TARGET) && 313803f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt !(i->f->disable_target_scan)) { 3139aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_scan_target(&rport->dev, rport->channel, 3140aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->scsi_target_id, SCAN_WILD_CARD, 1); 314142e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com } 3142aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 3143aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 3144aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags &= ~FC_RPORT_SCAN_PENDING; 314542e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 314642e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com} 314742e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 314865d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt/** 314965d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * fc_block_scsi_eh - Block SCSI eh thread for blocked fc_rport 315065d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * @cmnd: SCSI command that scsi_eh is trying to recover 315165d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * 315265d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * This routine can be called from a FC LLD scsi_eh callback. It 315365d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * blocks the scsi_eh thread until the fc_rport leaves the 315465d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * FC_PORTSTATE_BLOCKED. This is necessary to avoid the scsi_eh 315565d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * failing recovery actions for blocked rports which would lead to 315665d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * offlined SCSI devices. 315765d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt */ 315865d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmittvoid fc_block_scsi_eh(struct scsi_cmnd *cmnd) 315965d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt{ 316065d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt struct Scsi_Host *shost = cmnd->device->host; 316165d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); 316265d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt unsigned long flags; 316365d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt 316465d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_lock_irqsave(shost->host_lock, flags); 316565d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt while (rport->port_state == FC_PORTSTATE_BLOCKED) { 316665d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_unlock_irqrestore(shost->host_lock, flags); 316765d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt msleep(1000); 316865d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_lock_irqsave(shost->host_lock, flags); 316965d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt } 317065d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_unlock_irqrestore(shost->host_lock, flags); 317165d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt} 317265d430fa99cbd0e88d09a3343f697c51fc8a7009Christof SchmittEXPORT_SYMBOL(fc_block_scsi_eh); 317342e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 3174a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/** 3175a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * fc_vport_setup - allocates and creates a FC virtual port. 3176a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @shost: scsi host the virtual port is connected to. 3177a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @channel: Channel on shost port connected to. 3178a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @pdev: parent device for vport 3179a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @ids: The world wide names, FC4 port roles, etc for 3180a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the virtual port. 3181a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @ret_vport: The pointer to the created vport. 3182a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3183a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Allocates and creates the vport structure, calls the parent host 3184a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * to instantiate the vport, the completes w/ class and sysfs creation. 3185a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3186a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Notes: 3187a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * This routine assumes no locks are held on entry. 3188eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 3189a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int 3190a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezfc_vport_setup(struct Scsi_Host *shost, int channel, struct device *pdev, 3191a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport_identifiers *ids, struct fc_vport **ret_vport) 3192a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 3193a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3194a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *fci = to_fc_internal(shost->transportt); 3195a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 3196a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev; 3197a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 3198a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size_t size; 3199a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int error; 3200a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3201a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *ret_vport = NULL; 3202a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3203a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ( ! fci->f->vport_create) 3204a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOENT; 3205a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3206a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size = (sizeof(struct fc_vport) + fci->f->dd_fcvport_size); 3207a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport = kzalloc(size, GFP_KERNEL); 3208a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (unlikely(!vport)) { 3209cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison printk(KERN_ERR "%s: allocation failure\n", __func__); 3210a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOMEM; 3211a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3212a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3213a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_state = FC_VPORT_UNKNOWN; 3214a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_last_state = FC_VPORT_UNKNOWN; 3215a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->node_name = ids->node_name; 3216a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->port_name = ids->port_name; 3217a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->roles = ids->roles; 3218a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_type = ids->vport_type; 3219a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (fci->f->dd_fcvport_size) 3220a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->dd_data = &vport[1]; 3221a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->shost = shost; 3222a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->channel = channel; 3223a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags = FC_VPORT_CREATING; 32249ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart INIT_WORK(&vport->vport_delete_work, fc_vport_sched_delete); 3225a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3226a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3227a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3228a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (fc_host->npiv_vports_inuse >= fc_host->max_npiv_vports) { 3229a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3230a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 3231a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOSPC; 3232a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3233a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse++; 3234a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->number = fc_host->next_vport_number++; 3235a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_add_tail(&vport->peers, &fc_host->vports); 3236a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart get_device(&shost->shost_gendev); /* for fc_host->vport list */ 3237a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3238a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3239a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3240a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev = &vport->dev; 3241a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_initialize(dev); /* takes self reference */ 3242a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev->parent = get_device(pdev); /* takes parent reference */ 3243a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev->release = fc_vport_dev_release; 324471610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_set_name(dev, "vport-%d:%d-%d", 324571610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers shost->host_no, channel, vport->number); 3246a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_setup_device(dev); 3247a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3248a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = device_add(dev); 3249a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) { 3250a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR "FC Virtual Port device_add failed\n"); 3251a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart goto delete_vport; 3252a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3253a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_add_device(dev); 3254a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_configure_device(dev); 3255a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3256a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = fci->f->vport_create(vport, ids->disable); 3257a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) { 3258a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR "FC Virtual Port LLDD Create failed\n"); 3259a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart goto delete_vport_all; 3260a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3261a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3262a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 3263a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * if the parent isn't the physical adapter's Scsi_Host, ensure 3264a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the Scsi_Host at least contains ia symlink to the vport. 3265a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 3266a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (pdev != &shost->shost_gendev) { 3267a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = sysfs_create_link(&shost->shost_gendev.kobj, 326871610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers &dev->kobj, dev_name(dev)); 3269a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) 3270a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR 3271a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "%s: Cannot create vport symlinks for " 3272a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "%s, err=%d\n", 327371610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers __func__, dev_name(dev), error); 3274a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3275a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3276a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags &= ~FC_VPORT_CREATING; 3277a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3278a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3279a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev_printk(KERN_NOTICE, pdev, 328071610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers "%s created via shost%d channel %d\n", dev_name(dev), 3281a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart shost->host_no, channel); 3282a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3283a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *ret_vport = vport; 3284a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3285a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 3286a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3287a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartdelete_vport_all: 3288a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_remove_device(dev); 3289a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_del(dev); 3290a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartdelete_vport: 3291a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_destroy_device(dev); 3292a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3293a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_del(&vport->peers); 3294a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(&shost->shost_gendev); /* for fc_host->vport list */ 3295a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse--; 3296a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3297a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev->parent); 3298a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 3299a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3300a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return error; 3301a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 3302a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3303a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez/** 3304a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * fc_vport_create - Admin App or LLDD requests creation of a vport 3305a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @shost: scsi host the virtual port is connected to. 3306a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @channel: channel on shost port connected to. 3307a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @ids: The world wide names, FC4 port roles, etc for 3308a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * the virtual port. 3309a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * 3310a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * Notes: 3311a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * This routine assumes no locks are held on entry. 3312a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez */ 3313a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezstruct fc_vport * 3314a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezfc_vport_create(struct Scsi_Host *shost, int channel, 3315a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez struct fc_vport_identifiers *ids) 3316a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez{ 3317a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez int stat; 3318a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez struct fc_vport *vport; 3319a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez 3320a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez stat = fc_vport_setup(shost, channel, &shost->shost_gendev, 3321a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez ids, &vport); 3322a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez return stat ? NULL : vport; 3323a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez} 3324a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew VasquezEXPORT_SYMBOL(fc_vport_create); 3325a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3326a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/** 3327a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * fc_vport_terminate - Admin App or LLDD requests termination of a vport 3328a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @vport: fc_vport to be terminated 3329a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3330a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Calls the LLDD vport_delete() function, then deallocates and removes 3331a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the vport from the shost and object tree. 3332a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3333a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Notes: 3334a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * This routine assumes no locks are held on entry. 3335eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 3336a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartint 3337a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_vport_terminate(struct fc_vport *vport) 3338a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 3339a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); 3340a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3341a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 3342a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev = &vport->dev; 3343a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 3344a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 3345a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3346a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3347a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & FC_VPORT_CREATING) { 3348a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3349a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; 3350a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3351a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL)) { 3352a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3353a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EALREADY; 3354a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3355a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags |= FC_VPORT_DELETING; 3356a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3357a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3358a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->vport_delete) 3359a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = i->f->vport_delete(vport); 3360a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else 3361a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = -ENOENT; 3362a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3363a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3364a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags &= ~FC_VPORT_DELETING; 3365a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!stat) { 3366a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags |= FC_VPORT_DELETED; 3367a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_del(&vport->peers); 3368a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse--; 3369a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(&shost->shost_gendev); /* for fc_host->vport list */ 3370a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3371a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3372a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3373a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 3374a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 3375a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3376a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (dev->parent != &shost->shost_gendev) 337771610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers sysfs_remove_link(&shost->shost_gendev.kobj, dev_name(dev)); 3378a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_remove_device(dev); 3379a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_del(dev); 3380a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_destroy_device(dev); 3381a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3382a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 3383a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Removing our self-reference should mean our 3384a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * release function gets called, which will drop the remaining 3385a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * parent reference and free the data structure. 3386a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 3387a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev); /* for self-reference */ 3388a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3389a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; /* SUCCESS */ 3390a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 3391a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James SmartEXPORT_SYMBOL(fc_vport_terminate); 3392a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 33939ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart/** 33949ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * fc_vport_sched_delete - workq-based delete request for a vport 33959ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * @work: vport to be deleted. 3396eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 33979ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartstatic void 33989ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartfc_vport_sched_delete(struct work_struct *work) 33999ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart{ 34009ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart struct fc_vport *vport = 34019ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart container_of(work, struct fc_vport, vport_delete_work); 34029ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart int stat; 34039ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 34049ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart stat = fc_vport_terminate(vport); 34059ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart if (stat) 34069ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart dev_printk(KERN_ERR, vport->dev.parent, 34079ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart "%s: %s could not be deleted created via " 3408cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison "shost%d channel %d - error %d\n", __func__, 340971610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_name(&vport->dev), vport->shost->host_no, 34109ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart vport->channel, stat); 34119ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart} 34129ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 3413a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 34149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/* 34159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * BSG support 34169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 34179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 34209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_destroy_bsgjob - routine to teardown/delete a fc bsg job 34219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: fc_bsg_job that is to be torn down 34229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 34239e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 34249e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_destroy_bsgjob(struct fc_bsg_job *job) 34259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 34269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart unsigned long flags; 34279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irqsave(&job->job_lock, flags); 34299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->ref_cnt) { 34309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 34319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 34329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 34339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 34349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(job->dev); /* release reference for the request */ 34369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->request_payload.sg_list); 34389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->reply_payload.sg_list); 34399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job); 34409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 34419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 34439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_jobdone - completion routine for bsg requests that the LLD has 34449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * completed 34459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: fc_bsg_job that is complete 34469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 34479e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 34489e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_jobdone(struct fc_bsg_job *job) 34499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 34509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req = job->req; 34519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *rsp = req->next_rq; 34529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 34539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = job->req->errors = job->reply->result; 3455b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali 34569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err < 0) 34579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* we're only returning the result field in the reply */ 34589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req->sense_len = sizeof(uint32_t); 34599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 34609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req->sense_len = job->reply_len; 34619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* we assume all request payload was transferred, residual == 0 */ 34639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->resid_len = 0; 34649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rsp) { 34669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart WARN_ON(job->reply->reply_payload_rcv_len > rsp->resid_len); 34679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* set reply (bidi) residual */ 34699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rsp->resid_len -= min(job->reply->reply_payload_rcv_len, 34709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rsp->resid_len); 34719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 3472b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_complete_request(req); 3473b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali} 3474b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali 3475b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali/** 3476b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali * fc_bsg_softirq_done - softirq done routine for destroying the bsg requests 3477fe5d20c818a8c5fe83d9f2223a051fb5bc50d180Randy Dunlap * @rq: BSG request that holds the job to be destroyed 3478b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali */ 3479b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavalistatic void fc_bsg_softirq_done(struct request *rq) 3480b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali{ 3481b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali struct fc_bsg_job *job = rq->special; 3482b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali unsigned long flags; 34839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 3484b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali spin_lock_irqsave(&job->job_lock, flags); 3485b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali job->state_flags |= FC_RQST_STATE_DONE; 3486b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali job->ref_cnt--; 3487b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali spin_unlock_irqrestore(&job->job_lock, flags); 34889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 3489b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_end_request_all(rq, rq->errors); 34909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_destroy_bsgjob(job); 34919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 34929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 34949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_job_timeout - handler for when a bsg request timesout 34959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @req: request that timed out 34969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 34979e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum blk_eh_timer_return 34989e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_job_timeout(struct request *req) 34999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 35009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job = (void *) req->special; 35019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = job->shost; 35029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 35039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart unsigned long flags; 35049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err = 0, done = 0; 35059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->rport && job->rport->port_state == FC_PORTSTATE_BLOCKED) 35079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return BLK_EH_RESET_TIMER; 35089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irqsave(&job->job_lock, flags); 35109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->state_flags & FC_RQST_STATE_DONE) 35119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart done = 1; 35129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 35139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->ref_cnt++; 35149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 35159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!done && i->f->bsg_timeout) { 35179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* call LLDD to abort the i/o as it has timed out */ 35189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = i->f->bsg_timeout(job); 35199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err) 35209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "ERROR: FC BSG request timeout - LLD " 35219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "abort failed with status %d\n", err); 35229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 35239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* the blk_end_sync_io() doesn't check the error */ 352547e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali if (done) 352647e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali return BLK_EH_NOT_HANDLED; 352747e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali else 352847e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali return BLK_EH_HANDLED; 35299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 35309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35319e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 35329e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_map_buffer(struct fc_bsg_buffer *buf, struct request *req) 35339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 35349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart size_t sz = (sizeof(struct scatterlist) * req->nr_phys_segments); 35359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(!req->nr_phys_segments); 35379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->sg_list = kzalloc(sz, GFP_KERNEL); 35399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!buf->sg_list) 35409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 35419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart sg_init_table(buf->sg_list, req->nr_phys_segments); 35429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->sg_cnt = blk_rq_map_sg(req->q, req, buf->sg_list); 35439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->payload_len = blk_rq_bytes(req); 35449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 35459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 35469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 35499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_req_to_bsgjob - Allocate/create the fc_bsg_job structure for the 35509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * bsg request 35519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: SCSI Host corresponding to the bsg object 35529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: (optional) FC Remote Port corresponding to the bsg object 35539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @req: BSG request that needs a job structure 35549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 35559e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 35569e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_req_to_bsgjob(struct Scsi_Host *shost, struct fc_rport *rport, 35579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req) 35589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 35599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 35609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *rsp = req->next_rq; 35619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job; 35629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 35639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(req->special); 35659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job = kzalloc(sizeof(struct fc_bsg_job) + i->f->dd_bsg_size, 35679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart GFP_KERNEL); 35689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!job) 35699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 35709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* 35729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * Note: this is a bit silly. 35739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * The request gets formatted as a SGIO v4 ioctl request, which 35749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * then gets reformatted as a blk request, which then gets 35759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * reformatted as a fc bsg request. And on completion, we have 35769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * to wrap return results such that SGIO v4 thinks it was a scsi 35779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * status. I hope this was all worth it. 35789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 35799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->special = job; 35819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->shost = shost; 35829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->rport = rport; 35839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req = req; 35849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (i->f->dd_bsg_size) 35859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dd_data = (void *)&job[1]; 35869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_init(&job->job_lock); 35879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->request = (struct fc_bsg_request *)req->cmd; 35889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->request_len = req->cmd_len; 35899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply = req->sense; 35909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = SCSI_SENSE_BUFFERSIZE; /* Size of sense buffer 35919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * allocated */ 35929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (req->bio) { 35939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_map_buffer(&job->request_payload, req); 35949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) 35959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto failjob_rls_job; 35969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 35979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rsp && rsp->bio) { 35989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_map_buffer(&job->reply_payload, rsp); 35999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) 36009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto failjob_rls_rqst_payload; 36019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->job_done = fc_bsg_jobdone; 36039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport) 36049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dev = &rport->dev; 36059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 36069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dev = &shost->shost_gendev; 36079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart get_device(job->dev); /* take a reference for the request */ 36089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->ref_cnt = 1; 36109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 36129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36149e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfailjob_rls_rqst_payload: 36159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->request_payload.sg_list); 36169e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfailjob_rls_job: 36179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job); 36189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 36199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 36209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36229e4f5e29610162fd426366f3b29e3cc6e575b858James Smartenum fc_dispatch_result { 36239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_BREAK, /* on return, q is locked, break from q loop */ 36249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_LOCKED, /* on return, q is locked, continue on */ 36259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_UNLOCKED, /* on return, q is unlocked, continue on */ 36269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart}; 36279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 36309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_host_dispatch - process fc host bsg requests and dispatch to LLDD 36315415907af1f5ef80c95147bacbd321b0d4236dd5Randy Dunlap * @q: fc host request queue 36329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: scsi host rport attached to 36339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: bsg job to be processed 36349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 36359e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum fc_dispatch_result 36369e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_host_dispatch(struct request_queue *q, struct Scsi_Host *shost, 36379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job) 36389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 36399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 36409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int cmdlen = sizeof(uint32_t); /* start with length of msgcode */ 36419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 36429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* Validate the host command */ 36449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart switch (job->request->msgcode) { 36459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_ADD_RPORT: 36469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_add_rport); 36479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_DEL_RPORT: 36509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_del_rport); 36519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_ELS_NOLOGIN: 36549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_els); 36559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be a xmt and rcv payloads */ 36569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 36579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 36589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 36599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 36609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_CT: 36649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_ct); 36659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be xmt and rcv payloads */ 36669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 36679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 36689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 36699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 36709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_VENDOR: 36749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_vendor); 36759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((shost->hostt->vendor_id == 0L) || 36769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (job->request->rqst_data.h_vendor.vendor_id != 36779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->hostt->vendor_id)) { 36789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ESRCH; 36799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 36809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart default: 36849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EBADR; 36859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 36869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we really have all the request data needed */ 36899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < cmdlen) { 36909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ENOMSG; 36919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 36929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = i->f->bsg_request(job); 36959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!ret) 36969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 36979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36989e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfail_host_msg: 36999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* return the errno failure code as the only status */ 37009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 37019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = ret; 37029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 37039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 37049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 37059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 37069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/* 37099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_goose_queue - restart rport queue in case it was stopped 37109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport to be restarted 37119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 37129e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 37139e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_goose_queue(struct fc_rport *rport) 37149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 37159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int flagset; 371639562e783928e3ea9ee2cbce99a756ab48d3c06aChristof Schmitt unsigned long flags; 37179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!rport->rqst_q) 37199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 37209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart get_device(&rport->dev); 37229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 372339562e783928e3ea9ee2cbce99a756ab48d3c06aChristof Schmitt spin_lock_irqsave(rport->rqst_q->queue_lock, flags); 37249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart flagset = test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags) && 37259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart !test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags); 37269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (flagset) 37279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_set(QUEUE_FLAG_REENTER, rport->rqst_q); 37289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart __blk_run_queue(rport->rqst_q); 37299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (flagset) 37309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_clear(QUEUE_FLAG_REENTER, rport->rqst_q); 373139562e783928e3ea9ee2cbce99a756ab48d3c06aChristof Schmitt spin_unlock_irqrestore(rport->rqst_q->queue_lock, flags); 37329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(&rport->dev); 37349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 37359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 37389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rport_dispatch - process rport bsg requests and dispatch to LLDD 37395415907af1f5ef80c95147bacbd321b0d4236dd5Randy Dunlap * @q: rport request queue 37409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: scsi host rport attached to 37419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport request destined to 37429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: bsg job to be processed 37439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 37449e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum fc_dispatch_result 37459e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rport_dispatch(struct request_queue *q, struct Scsi_Host *shost, 37469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport, struct fc_bsg_job *job) 37479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 37489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 37499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int cmdlen = sizeof(uint32_t); /* start with length of msgcode */ 37509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 37519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* Validate the rport command */ 37539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart switch (job->request->msgcode) { 37549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_RPT_ELS: 37559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_rport_els); 37569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto check_bidi; 37579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_RPT_CT: 37599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_rport_ct); 37609e4f5e29610162fd426366f3b29e3cc6e575b858James Smartcheck_bidi: 37619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be xmt and rcv payloads */ 37629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 37639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 37649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 37659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 37669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 37689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart default: 37699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EBADR; 37709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 37719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we really have all the request data needed */ 37749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < cmdlen) { 37759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ENOMSG; 37769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 37779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = i->f->bsg_request(job); 37809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!ret) 37819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 37829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37839e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfail_rport_msg: 37849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* return the errno failure code as the only status */ 37859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 37869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = ret; 37879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 37889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 37899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 37909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 37919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 37949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_request_handler - generic handler for bsg requests 37959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: request queue to manage 37969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: Scsi_Host related to the bsg object 37979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: FC remote port related to the bsg object (optional) 37989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @dev: device structure for bsg object 37999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 38009e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 38019e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_request_handler(struct request_queue *q, struct Scsi_Host *shost, 38029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport, struct device *dev) 38039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 38049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req; 38059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job; 38069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart enum fc_dispatch_result ret; 38079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!get_device(dev)) 38099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 38109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart while (!blk_queue_plugged(q)) { 38122bc1c59dbdefdb6f9767e06efb86bbdb2923a8beMike Christie if (rport && (rport->port_state == FC_PORTSTATE_BLOCKED) && 38132bc1c59dbdefdb6f9767e06efb86bbdb2923a8beMike Christie !(rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT)) 38142bc1c59dbdefdb6f9767e06efb86bbdb2923a8beMike Christie break; 38159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req = blk_fetch_request(q); 38179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!req) 38189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 38199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport && (rport->port_state != FC_PORTSTATE_ONLINE)) { 38219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->errors = -ENXIO; 38229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 38239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_end_request(req, -ENXIO, blk_rq_bytes(req)); 38249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 38259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 38269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 38299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_req_to_bsgjob(shost, rport, req); 38319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) { 38329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->errors = ret; 38339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_end_request(req, ret, blk_rq_bytes(req)); 38349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 38359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 38369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job = req->special; 38399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we have the msgcode value at least */ 38419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < sizeof(uint32_t)) { 38429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 38439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = -ENOMSG; 38449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 38459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 38469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 38479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 38489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* the dispatch routines will unlock the queue_lock */ 38519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport) 38529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_rport_dispatch(q, shost, rport, job); 38539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 38549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_host_dispatch(q, shost, job); 38559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* did dispatcher hit state that can't process any more */ 38579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret == FC_DISPATCH_BREAK) 38589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 38599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* did dispatcher had released the lock */ 38619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret == FC_DISPATCH_UNLOCKED) 38629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 38639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 38669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(dev); 38679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 38689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 38699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 38729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_host_handler - handler for bsg requests for a fc host 38739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: fc host request queue 38749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 38759e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 38769e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_host_handler(struct request_queue *q) 38779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 38789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = q->queuedata; 38799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_request_handler(q, shost, NULL, &shost->shost_gendev); 38819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 38829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 38859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rport_handler - handler for bsg requests for a fc rport 38869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: rport request queue 38879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 38889e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 38899e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rport_handler(struct request_queue *q) 38909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 38919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport = q->queuedata; 38929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = rport_to_shost(rport); 38939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_request_handler(q, shost, rport, &rport->dev); 38959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 38969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 38999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_hostadd - Create and add the bsg hooks so we can receive requests 39009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: shost for fc_host 39019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @fc_host: fc_host adding the structures to 39029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 39039e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 39049e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_hostadd(struct Scsi_Host *shost, struct fc_host_attrs *fc_host) 39059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 39069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *dev = &shost->shost_gendev; 39079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 39089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request_queue *q; 39099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 39103c559ea8fd003962d9a28c64b2dd5c6d83ca6edbJames Bottomley char bsg_name[20]; 39119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host->rqst_q = NULL; 39139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!i->f->bsg_request) 39159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOTSUPP; 39169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart snprintf(bsg_name, sizeof(bsg_name), 39189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "fc_host%d", shost->host_no); 39199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q = __scsi_alloc_queue(shost, fc_bsg_host_handler); 39219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!q) { 39229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "fc_host%d: bsg interface failed to " 39239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - no request queue\n", 39249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->host_no); 39259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 39269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q->queuedata = shost; 39299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q); 3930b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_queue_softirq_done(q, fc_bsg_softirq_done); 39319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timed_out(q, fc_bsg_job_timeout); 39329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timeout(q, FC_DEFAULT_BSG_TIMEOUT); 39339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = bsg_register_queue(q, dev, bsg_name, NULL); 39359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err) { 39369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "fc_host%d: bsg interface failed to " 39379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - register queue\n", 39389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->host_no); 39399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 39409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return err; 39419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host->rqst_q = q; 39449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 39459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 39469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 39499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rportadd - Create and add the bsg hooks so we can receive requests 39509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: shost that rport is attached to 39519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport that the bsg hooks are being attached to 39529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 39539e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 39549e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rportadd(struct Scsi_Host *shost, struct fc_rport *rport) 39559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 39569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *dev = &rport->dev; 39579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 39589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request_queue *q; 39599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 39609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rport->rqst_q = NULL; 39629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!i->f->bsg_request) 39649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOTSUPP; 39659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q = __scsi_alloc_queue(shost, fc_bsg_rport_handler); 39679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!q) { 39689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "%s: bsg interface failed to " 39699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - no request queue\n", 39709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart dev->kobj.name); 39719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 39729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q->queuedata = rport; 39759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q); 3976b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_queue_softirq_done(q, fc_bsg_softirq_done); 39779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timed_out(q, fc_bsg_job_timeout); 39789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timeout(q, BLK_DEFAULT_SG_TIMEOUT); 39799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = bsg_register_queue(q, dev, NULL, NULL); 39819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err) { 39829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "%s: bsg interface failed to " 39839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - register queue\n", 39849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart dev->kobj.name); 39859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 39869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return err; 39879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rport->rqst_q = q; 39909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 39919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 39929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 39959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_remove - Deletes the bsg hooks on fchosts/rports 39969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: the request_queue that is to be torn down. 39979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 39989e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 39999e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_remove(struct request_queue *q) 40009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 40019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (q) { 40029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart bsg_unregister_queue(q); 40039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 40049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 40059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 40069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40089ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart/* Original Author: Martin Hicks */ 40099ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames SmartMODULE_AUTHOR("James Smart"); 40101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("FC Transport Attributes"); 40111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 40121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 40131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(fc_transport_init); 40141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(fc_transport_exit); 4015