scsi_transport_fc.c revision ecc3099002c1cc87e9e4b3dc5fdf7821828f6733
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> 305a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 3165d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt#include <linux/delay.h> 32ecc3099002c1cc87e9e4b3dc5fdf7821828f6733Andy Shevchenko#include <linux/kernel.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_device.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_host.h> 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport.h> 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport_fc.h> 37c829c394165f981d49f05a9be228404d7a9398d4James Smart#include <scsi/scsi_cmnd.h> 3884314fd4740ad73550c76dee4a9578979d84af48James Smart#include <linux/netlink.h> 3984314fd4740ad73550c76dee4a9578979d84af48James Smart#include <net/netlink.h> 4084314fd4740ad73550c76dee4a9578979d84af48James Smart#include <scsi/scsi_netlink_fc.h> 419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart#include <scsi/scsi_bsg_fc.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "scsi_priv.h" 437525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori#include "scsi_transport_fc_internal.h" 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 45aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int fc_queue_work(struct Scsi_Host *, struct work_struct *); 469ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartstatic void fc_vport_sched_delete(struct work_struct *work); 47a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezstatic int fc_vport_setup(struct Scsi_Host *shost, int channel, 48a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *pdev, struct fc_vport_identifiers *ids, 49a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport **vport); 509e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_bsg_hostadd(struct Scsi_Host *, struct fc_host_attrs *); 519e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_bsg_rportadd(struct Scsi_Host *, struct fc_rport *); 529e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void fc_bsg_remove(struct request_queue *); 539e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void fc_bsg_goose_queue(struct fc_rport *); 54a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 55a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Redefine so that we can have same named attributes in the 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sdev/starget/host objects. 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 59ee959b00c335d7780136c5abda37809191fe52c3Tony Jones#define FC_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \ 60ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstruct device_attribute device_attr_##_prefix##_##_name = \ 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ATTR(_name,_mode,_show,_store) 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_enum_name_search(title, table_type, table) \ 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const char *get_fc_##title##_name(enum table_type table_key) \ 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name = NULL; \ 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 696391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (table[i].value == table_key) { \ 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = table[i].name; \ 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; \ 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return name; \ 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_enum_name_match(title, table_type, table) \ 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int get_fc_##title##_match(const char *table_key, \ 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum table_type *value) \ 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 846391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(table_key, table[i].name, \ 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds table[i].matchlen) == 0) { \ 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *value = table[i].value; \ 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* success */ \ 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; /* failure */ \ 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_port_type values to ascii string name */ 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_port_type value; 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_type_names[] = { 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_UNKNOWN, "Unknown" }, 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_OTHER, "Other" }, 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NOTPRESENT, "Not Present" }, 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NPORT, "NPort (fabric via point-to-point)" }, 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NLPORT, "NLPort (fabric via loop)" }, 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_LPORT, "LPort (private loop)" }, 106951948a397e3ddc96658efd648b9d66622965b19Christof Schmitt { FC_PORTTYPE_PTP, "Point-To-Point (direct nport connection)" }, 107a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORTTYPE_NPIV, "NPIV VPORT" }, 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(port_type, fc_port_type, fc_port_type_names) 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_PORTTYPE_MAX_NAMELEN 50 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 112a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Reuse fc_port_type enum function for vport_type */ 113a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define get_fc_vport_type_name get_fc_port_type_name 114a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11684314fd4740ad73550c76dee4a9578979d84af48James Smart/* Convert fc_host_event_code values to ascii string name */ 11784314fd4740ad73550c76dee4a9578979d84af48James Smartstatic const struct { 11884314fd4740ad73550c76dee4a9578979d84af48James Smart enum fc_host_event_code value; 11984314fd4740ad73550c76dee4a9578979d84af48James Smart char *name; 12084314fd4740ad73550c76dee4a9578979d84af48James Smart} fc_host_event_code_names[] = { 12184314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LIP, "lip" }, 12284314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINKUP, "link_up" }, 12384314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINKDOWN, "link_down" }, 12484314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LIPRESET, "lip_reset" }, 12584314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_RSCN, "rscn" }, 12684314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_ADAPTER_CHANGE, "adapter_chg" }, 12784314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_UNKNOWN, "port_unknown" }, 12884314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_ONLINE, "port_online" }, 12984314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_OFFLINE, "port_offline" }, 13084314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_FABRIC, "port_fabric" }, 13184314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINK_UNKNOWN, "link_unknown" }, 13284314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_VENDOR_UNIQUE, "vendor_unique" }, 13384314fd4740ad73550c76dee4a9578979d84af48James Smart}; 13484314fd4740ad73550c76dee4a9578979d84af48James Smartfc_enum_name_search(host_event_code, fc_host_event_code, 13584314fd4740ad73550c76dee4a9578979d84af48James Smart fc_host_event_code_names) 13684314fd4740ad73550c76dee4a9578979d84af48James Smart#define FC_HOST_EVENT_CODE_MAX_NAMELEN 30 13784314fd4740ad73550c76dee4a9578979d84af48James Smart 13884314fd4740ad73550c76dee4a9578979d84af48James Smart 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_port_state values to ascii string name */ 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_port_state value; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_state_names[] = { 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_UNKNOWN, "Unknown" }, 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_NOTPRESENT, "Not Present" }, 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_ONLINE, "Online" }, 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_OFFLINE, "Offline" }, 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_BLOCKED, "Blocked" }, 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_BYPASSED, "Bypassed" }, 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_DIAGNOSTICS, "Diagnostics" }, 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_LINKDOWN, "Linkdown" }, 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_ERROR, "Error" }, 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_LOOPBACK, "Loopback" }, 15442e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com { FC_PORTSTATE_DELETED, "Deleted" }, 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(port_state, fc_port_state, fc_port_state_names) 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_PORTSTATE_MAX_NAMELEN 20 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 160a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Convert fc_vport_state values to ascii string name */ 161a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic struct { 162a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart enum fc_vport_state value; 163a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *name; 164a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} fc_vport_state_names[] = { 165a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_UNKNOWN, "Unknown" }, 166a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_ACTIVE, "Active" }, 167a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_DISABLED, "Disabled" }, 168a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_LINKDOWN, "Linkdown" }, 169a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_INITIALIZING, "Initializing" }, 170a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_NO_FABRIC_SUPP, "No Fabric Support" }, 171a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_NO_FABRIC_RSCS, "No Fabric Resources" }, 172a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FABRIC_LOGOUT, "Fabric Logout" }, 173a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FABRIC_REJ_WWN, "Fabric Rejected WWN" }, 174a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FAILED, "VPort Failed" }, 175a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart}; 176a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_enum_name_search(vport_state, fc_vport_state, fc_vport_state_names) 177a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define FC_VPORTSTATE_MAX_NAMELEN 24 178a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 179a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Reuse fc_vport_state enum function for vport_last_state */ 180a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define get_fc_vport_last_state_name get_fc_vport_state_name 181a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 182a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_tgtid_binding_type values to ascii string name */ 1840ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_tgtid_binding_type value; 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int matchlen; 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_tgtid_binding_type_names[] = { 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_NONE, "none", 4 }, 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_WWPN, "wwpn (World Wide Port Name)", 4 }, 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_WWNN, "wwnn (World Wide Node Name)", 4 }, 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_ID, "port_id (FC Address)", 7 }, 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(tgtid_bind_type, fc_tgtid_binding_type, 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_tgtid_binding_type_names) 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_match(tgtid_bind_type, fc_tgtid_binding_type, 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_tgtid_binding_type_names) 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_BINDTYPE_MAX_NAMELEN 30 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_bitfield_name_search(title, table) \ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsget_fc_##title##_names(u32 table_key, char *buf) \ 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *prefix = ""; \ 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssize_t len = 0; \ 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 2096391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (table[i].value & table_key) { \ 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "%s%s", \ 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prefix, table[i].name); \ 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prefix = ", "; \ 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "\n"); \ 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; \ 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert FC_COS bit values to ascii string name */ 2220ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_cos_names[] = { 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS1, "Class 1" }, 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS2, "Class 2" }, 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS3, "Class 3" }, 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS4, "Class 4" }, 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS6, "Class 6" }, 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_bitfield_name_search(cos, fc_cos_names) 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert FC_PORTSPEED bit values to ascii string name */ 2360ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_speed_names[] = { 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_1GBIT, "1 Gbit" }, 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_2GBIT, "2 Gbit" }, 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_4GBIT, "4 Gbit" }, 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_10GBIT, "10 Gbit" }, 244c3d2350a8420dbf9d48f5f8a0fb72117bfcbc1b0James Smart { FC_PORTSPEED_8GBIT, "8 Gbit" }, 245c3d2350a8420dbf9d48f5f8a0fb72117bfcbc1b0James Smart { FC_PORTSPEED_16GBIT, "16 Gbit" }, 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_NOT_NEGOTIATED, "Not Negotiated" }, 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_bitfield_name_search(port_speed, fc_port_speed_names) 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_fc4s (char *buf, u8 *fc4_list) 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, len=0; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < FC_FC4_LIST_SIZE; i++, fc4_list++) 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len , "0x%02x ", *fc4_list); 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "\n"); 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 263a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Convert FC_PORT_ROLE bit values to ascii string name */ 2640ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 267a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} fc_port_role_names[] = { 268a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_FCP_TARGET, "FCP Target" }, 269a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_FCP_INITIATOR, "FCP Initiator" }, 270a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_IP_PORT, "IP Port" }, 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 272a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_bitfield_name_search(port_roles, fc_port_role_names) 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Define roles that are specific to port_id. Values are relative to ROLE_MASK. 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_WELLKNOWN_PORTID_MASK 0xfffff0 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_WELLKNOWN_ROLE_MASK 0x00000f 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FPORT_PORTID 0x00000e 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FABCTLR_PORTID 0x00000d 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_DIRSRVR_PORTID 0x00000c 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_TIMESRVR_PORTID 0x00000b 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_MGMTSRVR_PORTID 0x00000a 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 286c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_timeout_deleted_rport(struct work_struct *work); 287c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_timeout_fail_rport_io(struct work_struct *work); 288c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_scsi_scan_rport(struct work_struct *work); 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Attribute counts pre object type... 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Increase these values if you add attributes 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_STARGET_NUM_ATTRS 3 2950f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart#define FC_RPORT_NUM_ATTRS 10 296a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define FC_VPORT_NUM_ATTRS 9 2974643682ba50634db5cd61292711d031630baf233James Smart#define FC_HOST_NUM_ATTRS 22 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fc_internal { 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_transport_template t; 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_function_template *f; 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For attributes : each object has : 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * An array of the actual attributes structures 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * An array of null-terminated pointers to the attribute 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * structures - used for mid-layer interaction. 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The attribute containers for the starget and host are are 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * part of the midlayer. As the remote port is specific to the 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc transport, we must provide the attribute container. 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 313ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_starget_attrs[ 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FC_STARGET_NUM_ATTRS]; 315ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *starget_attrs[FC_STARGET_NUM_ATTRS + 1]; 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 317ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_host_attrs[FC_HOST_NUM_ATTRS]; 318ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *host_attrs[FC_HOST_NUM_ATTRS + 1]; 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct transport_container rport_attr_cont; 321ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_rport_attrs[FC_RPORT_NUM_ATTRS]; 322ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *rport_attrs[FC_RPORT_NUM_ATTRS + 1]; 323a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 324a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct transport_container vport_attr_cont; 325ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_vport_attrs[FC_VPORT_NUM_ATTRS]; 326ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *vport_attrs[FC_VPORT_NUM_ATTRS + 1]; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define to_fc_internal(tmpl) container_of(tmpl, struct fc_internal, t) 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 331d0a7e574007fd547d72ec693bfa35778623d0738James Bottomleystatic int fc_target_setup(struct transport_container *tc, struct device *dev, 332ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device *cdev) 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_target *starget = to_scsi_target(dev); 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = starget_to_rport(starget); 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if parent is remote port, use values from remote port. 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise, this host uses the fc_transport, but not the 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * remote port interface. As such, initialize to known non-values. 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport) { 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_node_name(starget) = rport->node_name; 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_name(starget) = rport->port_name; 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_id(starget) = rport->port_id; 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_node_name(starget) = -1; 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_name(starget) = -1; 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_id(starget) = -1; 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_transport_class, 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_transport", 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_target_setup, 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 361d0a7e574007fd547d72ec693bfa35778623d0738James Bottomleystatic int fc_host_setup(struct transport_container *tc, struct device *dev, 362ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device *cdev) 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = dev_to_shost(dev); 365aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3679ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart /* 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set default values easily detected by the midlayer as 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * failure cases. The scsi lldd is responsible for initializing 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * all transport attributes to valid values per host. 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 372aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->node_name = -1; 373aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_name = -1; 374aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->permanent_port_name = -1; 375aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->supported_classes = FC_COS_UNSPECIFIED; 376aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->supported_fc4s, 0, 377aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->supported_fc4s)); 378aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->supported_speeds = FC_PORTSPEED_UNKNOWN; 379aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->maxframe_size = -1; 380a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->max_npiv_vports = 0; 381aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->serial_number, 0, 382aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->serial_number)); 383aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 384aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_id = -1; 385aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_type = FC_PORTTYPE_UNKNOWN; 386aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_state = FC_PORTSTATE_UNKNOWN; 387aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->active_fc4s, 0, 388aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->active_fc4s)); 389aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->speed = FC_PORTSPEED_UNKNOWN; 390aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->fabric_name = -1; 391b8d08210126a7b769b857720a59721a453a57a1eJames Smart memset(fc_host->symbolic_name, 0, sizeof(fc_host->symbolic_name)); 392b8d08210126a7b769b857720a59721a453a57a1eJames Smart memset(fc_host->system_hostname, 0, sizeof(fc_host->system_hostname)); 393aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 394aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->tgtid_bind_type = FC_TGTID_BIND_BY_WWPN; 395aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 396aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart INIT_LIST_HEAD(&fc_host->rports); 397aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart INIT_LIST_HEAD(&fc_host->rport_bindings); 398a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart INIT_LIST_HEAD(&fc_host->vports); 399aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->next_rport_number = 0; 400aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->next_target_id = 0; 401a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->next_vport_number = 0; 402a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse = 0; 403aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 404aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name), 405aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers "fc_wq_%d", shost->host_no); 406aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q = create_singlethread_workqueue( 407aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q_name); 408aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host->work_q) 409aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -ENOMEM; 410aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 411aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers snprintf(fc_host->devloss_work_q_name, 412aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers sizeof(fc_host->devloss_work_q_name), 413aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers "fc_dl_%d", shost->host_no); 414aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->devloss_work_q = create_singlethread_workqueue( 415aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->devloss_work_q_name); 416aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host->devloss_work_q) { 417aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(fc_host->work_q); 418aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q = NULL; 419aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -ENOMEM; 420aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 421aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 4229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_hostadd(shost, fc_host); 4239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* ignore any bsg add error - we just can't do sgio */ 4249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 4269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 4279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4289e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_host_remove(struct transport_container *tc, struct device *dev, 4299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *cdev) 4309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 4319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = dev_to_shost(dev); 4329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 4339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_remove(fc_host->rqst_q); 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_host_class, 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_host", 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_setup, 4419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host_remove, 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup and Remove actions for remote ports are handled 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in the service functions below. 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_rport_class, 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_remote_ports", 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 455a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Setup and Remove actions for virtual ports are handled 456a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * in the service functions below. 457a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 458a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic DECLARE_TRANSPORT_CLASS(fc_vport_class, 459a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "fc_vports", 460a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, 461a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, 462a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL); 463a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 464a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Module Parameters 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * dev_loss_tmo: the default number of seconds that the FC transport 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * should insulate the loss of a remote port. 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The maximum will be capped by the value of SCSI_DEVICE_BLOCK_MAX_TIMEOUT. 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4731c9e16e47a22c61d99aabb1c154e5106ddbf3575James Smartstatic unsigned int fc_dev_loss_tmo = 60; /* seconds */ 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 47510f4b89a0f0586a67f57efb2f5d12fffbb371490Masatake YAMATOmodule_param_named(dev_loss_tmo, fc_dev_loss_tmo, uint, S_IRUGO|S_IWUSR); 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(dev_loss_tmo, 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Maximum number of seconds that the FC transport should" 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " insulate the loss of a remote port. Once this value is" 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " exceeded, the scsi target is removed. Value should be" 480f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke " between 1 and SCSI_DEVICE_BLOCK_MAX_TIMEOUT if" 481f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke " fast_io_fail_tmo is not set."); 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 483eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley/* 48484314fd4740ad73550c76dee4a9578979d84af48James Smart * Netlink Infrastructure 485eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 48684314fd4740ad73550c76dee4a9578979d84af48James Smart 48784314fd4740ad73550c76dee4a9578979d84af48James Smartstatic atomic_t fc_event_seq; 48884314fd4740ad73550c76dee4a9578979d84af48James Smart 48984314fd4740ad73550c76dee4a9578979d84af48James Smart/** 49084314fd4740ad73550c76dee4a9578979d84af48James Smart * fc_get_event_number - Obtain the next sequential FC event number 49184314fd4740ad73550c76dee4a9578979d84af48James Smart * 49284314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 493eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * We could have inlined this, but it would have required fc_event_seq to 49484314fd4740ad73550c76dee4a9578979d84af48James Smart * be exposed. For now, live with the subroutine call. 49584314fd4740ad73550c76dee4a9578979d84af48James Smart * Atomic used to avoid lock/unlock... 496eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 49784314fd4740ad73550c76dee4a9578979d84af48James Smartu32 49884314fd4740ad73550c76dee4a9578979d84af48James Smartfc_get_event_number(void) 49984314fd4740ad73550c76dee4a9578979d84af48James Smart{ 50084314fd4740ad73550c76dee4a9578979d84af48James Smart return atomic_add_return(1, &fc_event_seq); 50184314fd4740ad73550c76dee4a9578979d84af48James Smart} 50284314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_get_event_number); 50384314fd4740ad73550c76dee4a9578979d84af48James Smart 50484314fd4740ad73550c76dee4a9578979d84af48James Smart 50584314fd4740ad73550c76dee4a9578979d84af48James Smart/** 50684314fd4740ad73550c76dee4a9578979d84af48James Smart * fc_host_post_event - called to post an even on an fc_host. 50784314fd4740ad73550c76dee4a9578979d84af48James Smart * @shost: host the event occurred on 50884314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_number: fc event number obtained from get_fc_event_number() 50984314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_code: fc_host event being posted 51084314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_data: 32bits of data for the event being posted 51184314fd4740ad73550c76dee4a9578979d84af48James Smart * 51284314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 51384314fd4740ad73550c76dee4a9578979d84af48James Smart * This routine assumes no locks are held on entry. 514eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 51584314fd4740ad73550c76dee4a9578979d84af48James Smartvoid 51684314fd4740ad73550c76dee4a9578979d84af48James Smartfc_host_post_event(struct Scsi_Host *shost, u32 event_number, 51784314fd4740ad73550c76dee4a9578979d84af48James Smart enum fc_host_event_code event_code, u32 event_data) 51884314fd4740ad73550c76dee4a9578979d84af48James Smart{ 51984314fd4740ad73550c76dee4a9578979d84af48James Smart struct sk_buff *skb; 52084314fd4740ad73550c76dee4a9578979d84af48James Smart struct nlmsghdr *nlh; 52184314fd4740ad73550c76dee4a9578979d84af48James Smart struct fc_nl_event *event; 52284314fd4740ad73550c76dee4a9578979d84af48James Smart const char *name; 52384314fd4740ad73550c76dee4a9578979d84af48James Smart u32 len, skblen; 52484314fd4740ad73550c76dee4a9578979d84af48James Smart int err; 52584314fd4740ad73550c76dee4a9578979d84af48James Smart 52684314fd4740ad73550c76dee4a9578979d84af48James Smart if (!scsi_nl_sock) { 52784314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOENT; 52884314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail; 52984314fd4740ad73550c76dee4a9578979d84af48James Smart } 53084314fd4740ad73550c76dee4a9578979d84af48James Smart 53184314fd4740ad73550c76dee4a9578979d84af48James Smart len = FC_NL_MSGALIGN(sizeof(*event)); 53284314fd4740ad73550c76dee4a9578979d84af48James Smart skblen = NLMSG_SPACE(len); 53384314fd4740ad73550c76dee4a9578979d84af48James Smart 53484314fd4740ad73550c76dee4a9578979d84af48James Smart skb = alloc_skb(skblen, GFP_KERNEL); 53584314fd4740ad73550c76dee4a9578979d84af48James Smart if (!skb) { 53684314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 53784314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail; 53884314fd4740ad73550c76dee4a9578979d84af48James Smart } 53984314fd4740ad73550c76dee4a9578979d84af48James Smart 54084314fd4740ad73550c76dee4a9578979d84af48James Smart nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, 54184314fd4740ad73550c76dee4a9578979d84af48James Smart skblen - sizeof(*nlh), 0); 54284314fd4740ad73550c76dee4a9578979d84af48James Smart if (!nlh) { 54384314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 54484314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail_skb; 54584314fd4740ad73550c76dee4a9578979d84af48James Smart } 54684314fd4740ad73550c76dee4a9578979d84af48James Smart event = NLMSG_DATA(nlh); 54784314fd4740ad73550c76dee4a9578979d84af48James Smart 54884314fd4740ad73550c76dee4a9578979d84af48James Smart INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC, 54984314fd4740ad73550c76dee4a9578979d84af48James Smart FC_NL_ASYNC_EVENT, len); 55084314fd4740ad73550c76dee4a9578979d84af48James Smart event->seconds = get_seconds(); 55184314fd4740ad73550c76dee4a9578979d84af48James Smart event->vendor_id = 0; 55284314fd4740ad73550c76dee4a9578979d84af48James Smart event->host_no = shost->host_no; 55384314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_datalen = sizeof(u32); /* bytes */ 55484314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_num = event_number; 55584314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_code = event_code; 55684314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_data = event_data; 55784314fd4740ad73550c76dee4a9578979d84af48James Smart 558ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, 559ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso GFP_KERNEL); 56084314fd4740ad73550c76dee4a9578979d84af48James Smart return; 56184314fd4740ad73550c76dee4a9578979d84af48James Smart 56284314fd4740ad73550c76dee4a9578979d84af48James Smartsend_fail_skb: 56384314fd4740ad73550c76dee4a9578979d84af48James Smart kfree_skb(skb); 56484314fd4740ad73550c76dee4a9578979d84af48James Smartsend_fail: 56584314fd4740ad73550c76dee4a9578979d84af48James Smart name = get_fc_host_event_code_name(event_code); 56684314fd4740ad73550c76dee4a9578979d84af48James Smart printk(KERN_WARNING 56784314fd4740ad73550c76dee4a9578979d84af48James Smart "%s: Dropped Event : host %d %s data 0x%08x - err %d\n", 568cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison __func__, shost->host_no, 56984314fd4740ad73550c76dee4a9578979d84af48James Smart (name) ? name : "<unknown>", event_data, err); 57084314fd4740ad73550c76dee4a9578979d84af48James Smart return; 57184314fd4740ad73550c76dee4a9578979d84af48James Smart} 57284314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_host_post_event); 57384314fd4740ad73550c76dee4a9578979d84af48James Smart 57484314fd4740ad73550c76dee4a9578979d84af48James Smart 57584314fd4740ad73550c76dee4a9578979d84af48James Smart/** 576eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_host_post_vendor_event - called to post a vendor unique event on an fc_host 57784314fd4740ad73550c76dee4a9578979d84af48James Smart * @shost: host the event occurred on 57884314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_number: fc event number obtained from get_fc_event_number() 57984314fd4740ad73550c76dee4a9578979d84af48James Smart * @data_len: amount, in bytes, of vendor unique data 58084314fd4740ad73550c76dee4a9578979d84af48James Smart * @data_buf: pointer to vendor unique data 581eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @vendor_id: Vendor id 58284314fd4740ad73550c76dee4a9578979d84af48James Smart * 58384314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 58484314fd4740ad73550c76dee4a9578979d84af48James Smart * This routine assumes no locks are held on entry. 585eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 58684314fd4740ad73550c76dee4a9578979d84af48James Smartvoid 58784314fd4740ad73550c76dee4a9578979d84af48James Smartfc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number, 588f14e2e29cdd07f80de6dec168dc2bb39de37eec3James Smart u32 data_len, char * data_buf, u64 vendor_id) 58984314fd4740ad73550c76dee4a9578979d84af48James Smart{ 59084314fd4740ad73550c76dee4a9578979d84af48James Smart struct sk_buff *skb; 59184314fd4740ad73550c76dee4a9578979d84af48James Smart struct nlmsghdr *nlh; 59284314fd4740ad73550c76dee4a9578979d84af48James Smart struct fc_nl_event *event; 59384314fd4740ad73550c76dee4a9578979d84af48James Smart u32 len, skblen; 59484314fd4740ad73550c76dee4a9578979d84af48James Smart int err; 59584314fd4740ad73550c76dee4a9578979d84af48James Smart 59684314fd4740ad73550c76dee4a9578979d84af48James Smart if (!scsi_nl_sock) { 59784314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOENT; 59884314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail; 59984314fd4740ad73550c76dee4a9578979d84af48James Smart } 60084314fd4740ad73550c76dee4a9578979d84af48James Smart 60184314fd4740ad73550c76dee4a9578979d84af48James Smart len = FC_NL_MSGALIGN(sizeof(*event) + data_len); 60284314fd4740ad73550c76dee4a9578979d84af48James Smart skblen = NLMSG_SPACE(len); 60384314fd4740ad73550c76dee4a9578979d84af48James Smart 60484314fd4740ad73550c76dee4a9578979d84af48James Smart skb = alloc_skb(skblen, GFP_KERNEL); 60584314fd4740ad73550c76dee4a9578979d84af48James Smart if (!skb) { 60684314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 60784314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail; 60884314fd4740ad73550c76dee4a9578979d84af48James Smart } 60984314fd4740ad73550c76dee4a9578979d84af48James Smart 61084314fd4740ad73550c76dee4a9578979d84af48James Smart nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, 61184314fd4740ad73550c76dee4a9578979d84af48James Smart skblen - sizeof(*nlh), 0); 61284314fd4740ad73550c76dee4a9578979d84af48James Smart if (!nlh) { 61384314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 61484314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail_skb; 61584314fd4740ad73550c76dee4a9578979d84af48James Smart } 61684314fd4740ad73550c76dee4a9578979d84af48James Smart event = NLMSG_DATA(nlh); 61784314fd4740ad73550c76dee4a9578979d84af48James Smart 61884314fd4740ad73550c76dee4a9578979d84af48James Smart INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC, 61984314fd4740ad73550c76dee4a9578979d84af48James Smart FC_NL_ASYNC_EVENT, len); 62084314fd4740ad73550c76dee4a9578979d84af48James Smart event->seconds = get_seconds(); 62184314fd4740ad73550c76dee4a9578979d84af48James Smart event->vendor_id = vendor_id; 62284314fd4740ad73550c76dee4a9578979d84af48James Smart event->host_no = shost->host_no; 62384314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_datalen = data_len; /* bytes */ 62484314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_num = event_number; 62584314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_code = FCH_EVT_VENDOR_UNIQUE; 62684314fd4740ad73550c76dee4a9578979d84af48James Smart memcpy(&event->event_data, data_buf, data_len); 62784314fd4740ad73550c76dee4a9578979d84af48James Smart 628ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, 629ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso GFP_KERNEL); 63084314fd4740ad73550c76dee4a9578979d84af48James Smart return; 63184314fd4740ad73550c76dee4a9578979d84af48James Smart 63284314fd4740ad73550c76dee4a9578979d84af48James Smartsend_vendor_fail_skb: 63384314fd4740ad73550c76dee4a9578979d84af48James Smart kfree_skb(skb); 63484314fd4740ad73550c76dee4a9578979d84af48James Smartsend_vendor_fail: 63584314fd4740ad73550c76dee4a9578979d84af48James Smart printk(KERN_WARNING 63684314fd4740ad73550c76dee4a9578979d84af48James Smart "%s: Dropped Event : host %d vendor_unique - err %d\n", 637cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison __func__, shost->host_no, err); 63884314fd4740ad73550c76dee4a9578979d84af48James Smart return; 63984314fd4740ad73550c76dee4a9578979d84af48James Smart} 64084314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_host_post_vendor_event); 64184314fd4740ad73550c76dee4a9578979d84af48James Smart 64284314fd4740ad73550c76dee4a9578979d84af48James Smart 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __init int fc_transport_init(void) 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 64684314fd4740ad73550c76dee4a9578979d84af48James Smart int error; 64784314fd4740ad73550c76dee4a9578979d84af48James Smart 64884314fd4740ad73550c76dee4a9578979d84af48James Smart atomic_set(&fc_event_seq, 0); 64984314fd4740ad73550c76dee4a9578979d84af48James Smart 65084314fd4740ad73550c76dee4a9578979d84af48James Smart error = transport_class_register(&fc_host_class); 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 653a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = transport_class_register(&fc_vport_class); 654a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) 65548de68a40aef032a2e198437f4781a83bfb938dbMike Christie goto unreg_host_class; 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = transport_class_register(&fc_rport_class); 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 65848de68a40aef032a2e198437f4781a83bfb938dbMike Christie goto unreg_vport_class; 65948de68a40aef032a2e198437f4781a83bfb938dbMike Christie error = transport_class_register(&fc_transport_class); 66048de68a40aef032a2e198437f4781a83bfb938dbMike Christie if (error) 66148de68a40aef032a2e198437f4781a83bfb938dbMike Christie goto unreg_rport_class; 66248de68a40aef032a2e198437f4781a83bfb938dbMike Christie return 0; 66348de68a40aef032a2e198437f4781a83bfb938dbMike Christie 66448de68a40aef032a2e198437f4781a83bfb938dbMike Christieunreg_rport_class: 66548de68a40aef032a2e198437f4781a83bfb938dbMike Christie transport_class_unregister(&fc_rport_class); 66648de68a40aef032a2e198437f4781a83bfb938dbMike Christieunreg_vport_class: 66748de68a40aef032a2e198437f4781a83bfb938dbMike Christie transport_class_unregister(&fc_vport_class); 66848de68a40aef032a2e198437f4781a83bfb938dbMike Christieunreg_host_class: 66948de68a40aef032a2e198437f4781a83bfb938dbMike Christie transport_class_unregister(&fc_host_class); 67048de68a40aef032a2e198437f4781a83bfb938dbMike Christie return error; 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit fc_transport_exit(void) 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_transport_class); 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_rport_class); 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_host_class); 678a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_class_unregister(&fc_vport_class); 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FC Remote Port Attribute Management 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_show_function(field, format_string, sz, cast) \ 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 687ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##field (struct device *dev, \ 688ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 690ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); \ 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 69319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((i->f->get_rport_##field) && \ 69419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com !((rport->port_state == FC_PORTSTATE_BLOCKED) || \ 69542e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || \ 69619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT))) \ 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_rport_##field(rport); \ 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast rport->field); \ 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_store_function(field) \ 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 703ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_rport_##field(struct device *dev, \ 704ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 705ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; \ 708ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); \ 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 7110f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; \ 71219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) || \ 71342e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || \ 71419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT)) \ 71519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return -EBUSY; \ 7160f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); \ 7170f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (*cp && (*cp != '\n')) \ 7180f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; \ 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->set_rport_##field(rport, val); \ 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rd_attr(field, format_string, sz) \ 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, ) \ 725ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rd_attr_cast(field, format_string, sz, cast) \ 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, (cast)) \ 730ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rw_attr(field, format_string, sz) \ 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, ) \ 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_store_function(field) \ 736ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO | S_IWUSR, \ 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, \ 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_rport_##field) 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_show_function(field, format_string, sz, cast) \ 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 743ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##field (struct device *dev, \ 744ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 746ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast rport->field); \ 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_attr(field, format_string, sz) \ 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_rport_show_function(field, format_string, sz, ) \ 752ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_attr_cast(field, format_string, sz, cast) \ 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_rport_show_function(field, format_string, sz, (cast)) \ 757ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_enum_attr(title, maxlen) \ 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 763ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##title (struct device *dev, \ 764ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 766ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; \ 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_##title##_name(rport->title); \ 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) \ 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; \ 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, maxlen, "%s\n", name); \ 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 773ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, title, S_IRUGO, \ 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##title, NULL) 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_RPORT_ATTRIBUTE_RD(field) \ 778ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_rport_##field) \ 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(field) \ 786ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_RPORT_ATTRIBUTE_RW(field) \ 793ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_rport_##field) { \ 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_rport_##field) \ 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8020f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart#define SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(field) \ 8030f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ \ 804ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 8050f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 8060f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart count++; \ 8070f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 8080f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The FC Transport Remote Port Attributes: */ 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Fixed Remote Port Attributes */ 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(maxframe_size, "%u bytes\n", 20); 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 817ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_supported_classes (struct device *dev, 818ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 820ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->supported_classes == FC_COS_UNSPECIFIED) 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unspecified\n"); 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_cos_names(rport->supported_classes, buf); 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 825ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, supported_classes, S_IRUGO, 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_supported_classes, NULL); 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Dynamic Remote Port Attributes */ 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 83019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com/* 83119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * dev_loss_tmo attribute 83219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 83319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Comfc_rport_show_function(dev_loss_tmo, "%d\n", 20, ) 83419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Comstatic ssize_t 835ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_rport_dev_loss_tmo(struct device *dev, struct device_attribute *attr, 836ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 83719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com{ 83836dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke unsigned long val; 839ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 84019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct Scsi_Host *shost = rport_to_shost(rport); 84119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct fc_internal *i = to_fc_internal(shost->transportt); 8420f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; 84319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) || 84442e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || 84519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT)) 84619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return -EBUSY; 8470f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); 848f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke if ((*cp && (*cp != '\n')) || (val < 0)) 84919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return -EINVAL; 850f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke 851f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke /* 85236dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke * Check for overflow; dev_loss_tmo is u32 85336dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke */ 85436dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke if (val > UINT_MAX) 85536dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke return -EINVAL; 85636dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke 85736dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke /* 858f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke * If fast_io_fail is off we have to cap 859f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke * dev_loss_tmo at SCSI_DEVICE_BLOCK_MAX_TIMEOUT 860f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke */ 861f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke if (rport->fast_io_fail_tmo == -1 && 862f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke val > SCSI_DEVICE_BLOCK_MAX_TIMEOUT) 863f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke return -EINVAL; 864f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke 86519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com i->f->set_rport_dev_loss_tmo(rport, val); 86619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return count; 86719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com} 868ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, dev_loss_tmo, S_IRUGO | S_IWUSR, 86919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com show_fc_rport_dev_loss_tmo, store_fc_rport_dev_loss_tmo); 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Private Remote Port Attributes */ 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(port_id, "0x%06x\n", 20); 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 879ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_roles (struct device *dev, struct device_attribute *attr, 880ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 882ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* identify any roles that are port_id specific */ 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((rport->port_id != -1) && 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (rport->port_id & FC_WELLKNOWN_PORTID_MASK) == 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FC_WELLKNOWN_PORTID_MASK) { 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (rport->port_id & FC_WELLKNOWN_ROLE_MASK) { 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_FPORT_PORTID: 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Fabric Port\n"); 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_FABCTLR_PORTID: 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Fabric Controller\n"); 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_DIRSRVR_PORTID: 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Directory Server\n"); 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TIMESRVR_PORTID: 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Time Server\n"); 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_MGMTSRVR_PORTID: 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Management Server\n"); 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Unknown Fabric Entity\n"); 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 903a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles == FC_PORT_ROLE_UNKNOWN) 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 905a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return get_fc_port_roles_names(rport->roles, buf); 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 908ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, roles, S_IRUGO, 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_roles, NULL); 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(scsi_target_id, "%d\n", 20); 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9140f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart/* 9150f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * fast_io_fail_tmo attribute 9160f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart */ 9170f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic ssize_t 918ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_fast_io_fail_tmo (struct device *dev, 919ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 9200f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 921ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 9220f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 9230f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->fast_io_fail_tmo == -1) 9240f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return snprintf(buf, 5, "off\n"); 9250f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return snprintf(buf, 20, "%d\n", rport->fast_io_fail_tmo); 9260f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 9270f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 9280f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic ssize_t 929ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_rport_fast_io_fail_tmo(struct device *dev, 930ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, 931ee959b00c335d7780136c5abda37809191fe52c3Tony Jones size_t count) 9320f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 9330f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart int val; 9340f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; 935ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 9360f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 9370f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((rport->port_state == FC_PORTSTATE_BLOCKED) || 9380f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (rport->port_state == FC_PORTSTATE_DELETED) || 9390f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (rport->port_state == FC_PORTSTATE_NOTPRESENT)) 9400f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EBUSY; 9410f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (strncmp(buf, "off", 3) == 0) 9420f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = -1; 9430f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart else { 9440f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); 945f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke if ((*cp && (*cp != '\n')) || (val < 0)) 946f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke return -EINVAL; 947f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke /* 948f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke * Cap fast_io_fail by dev_loss_tmo or 949f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke * SCSI_DEVICE_BLOCK_MAX_TIMEOUT. 950f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke */ 951f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke if ((val >= rport->dev_loss_tmo) || 952f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke (val > SCSI_DEVICE_BLOCK_MAX_TIMEOUT)) 9530f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; 954f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke 9550f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = val; 9560f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart } 9570f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return count; 9580f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 959ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, fast_io_fail_tmo, S_IRUGO | S_IWUSR, 9600f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart show_fc_rport_fast_io_fail_tmo, store_fc_rport_fast_io_fail_tmo); 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FC SCSI Target Attribute Management 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: in the target show function we recognize when the remote 969732bee7af3102cad811fb047dee8d15966efe569Uwe Kleine-König * port is in the hierarchy and do not allow the driver to get 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * involved in sysfs functions. The driver only gets involved if 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it's the "old" style that doesn't use rports. 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_show_function(field, format_string, sz, cast) \ 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 975ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_starget_##field (struct device *dev, \ 976ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 978ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct scsi_target *starget = transport_class_to_starget(dev); \ 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); \ 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = starget_to_rport(starget); \ 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport) \ 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_##field(starget) = rport->field; \ 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (i->f->get_starget_##field) \ 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_starget_##field(starget); \ 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, \ 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cast fc_starget_##field(starget)); \ 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_rd_attr(field, format_string, sz) \ 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_show_function(field, format_string, sz, ) \ 992ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(starget, field, S_IRUGO, \ 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_starget_##field, NULL) 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_rd_attr_cast(field, format_string, sz, cast) \ 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_show_function(field, format_string, sz, (cast)) \ 997ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(starget, field, S_IRUGO, \ 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_starget_##field, NULL) 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_STARGET_ATTRIBUTE_RD(field) \ 1001ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_starget_attrs[count] = device_attr_starget_##field; \ 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].attr.mode = S_IRUGO; \ 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].store = NULL; \ 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = &i->private_starget_attrs[count]; \ 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_starget_##field) \ 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_STARGET_ATTRIBUTE_RW(field) \ 1009ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_starget_attrs[count] = device_attr_starget_##field; \ 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_starget_##field) { \ 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].attr.mode = S_IRUGO; \ 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].store = NULL; \ 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = &i->private_starget_attrs[count]; \ 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_starget_##field) \ 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The FC Transport SCSI Target Attributes: */ 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr(port_id, "0x%06x\n", 20); 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1025a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * FC Virtual Port Attribute Management 1026a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1027a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1028a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_show_function(field, format_string, sz, cast) \ 1029a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1030ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##field (struct device *dev, \ 1031ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 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 if ((i->f->get_vport_##field) && \ 1037a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart !(vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING))) \ 1038a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->get_vport_##field(vport); \ 1039a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, sz, format_string, cast vport->field); \ 1040a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1041a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1042a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_store_function(field) \ 1043a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1044ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1045ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1046ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1047a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1048a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int val; \ 1049ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1050a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); \ 1051a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1052a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *cp; \ 1053a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ 1054a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; \ 1055a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart val = simple_strtoul(buf, &cp, 0); \ 1056a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*cp && (*cp != '\n')) \ 1057a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1058a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->set_vport_##field(vport, val); \ 1059a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1060a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1061a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1062a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_store_str_function(field, slen) \ 1063a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1064ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1065ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1066ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1067a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1068ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1069a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); \ 1070a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1071a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; \ 1072a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart \ 1073a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ \ 1074a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') \ 1075a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; \ 1076a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (cnt > ((slen) - 1)) \ 1077a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1078a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memcpy(vport->field, buf, cnt); \ 1079a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->set_vport_##field(vport); \ 1080a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1081a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1082a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1083a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rd_attr(field, format_string, sz) \ 1084a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, ) \ 1085ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1086a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1087a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1088a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rd_attr_cast(field, format_string, sz, cast) \ 1089a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, (cast)) \ 1090ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1091a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1092a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1093a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rw_attr(field, format_string, sz) \ 1094a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, ) \ 1095a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_store_function(field) \ 1096ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ 1097a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, \ 1098a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_vport_##field) 1099a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1100a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_show_function(field, format_string, sz, cast) \ 1101a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1102ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##field (struct device *dev, \ 1103ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 1104a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1105ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1106a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, sz, format_string, cast vport->field); \ 1107a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1108a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1109a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_store_u32_function(field) \ 1110a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1111ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1112ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1113ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1114a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1115a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u32 val; \ 1116ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1117a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *cp; \ 1118a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ 1119a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; \ 1120a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart val = simple_strtoul(buf, &cp, 0); \ 1121a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*cp && (*cp != '\n')) \ 1122a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1123a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->field = val; \ 1124a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1125a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1126a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1127a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1128a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_attr(field, format_string, sz) \ 1129a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, ) \ 1130ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1131a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1132a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1133a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_attr_cast(field, format_string, sz, cast) \ 1134a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, (cast)) \ 1135ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1136a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1137a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1138a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rw_u32_attr(field, format_string, sz) \ 1139a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, ) \ 1140a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_store_u32_function(field) \ 1141ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ 1142a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, \ 1143a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_vport_##field) 1144a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1145a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1146a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_enum_attr(title, maxlen) \ 1147a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1148ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##title (struct device *dev, \ 1149ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1150ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) \ 1151a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1152ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1153a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart const char *name; \ 1154a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart name = get_fc_##title##_name(vport->title); \ 1155a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!name) \ 1156a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1157a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, maxlen, "%s\n", name); \ 1158a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} \ 1159ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, title, S_IRUGO, \ 1160a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##title, NULL) 1161a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1162a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1163a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_RD(field) \ 1164ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1165a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1166a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1167a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1168a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->get_##field) \ 1169a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1170a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: checks function not show bit */ 1171a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1172a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(field) \ 1173ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1174a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1175a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1176a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1177a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1178a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1179a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_WR(field) \ 1180ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1181a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1182a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->field) \ 1183a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1184a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: checks function */ 1185a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1186a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_RW(field) \ 1187ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1188a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!i->f->set_vport_##field) { \ 1189a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1190a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1191a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } \ 1192a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1193a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1194a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: does not check show bit */ 1195a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1196a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RW(field) \ 1197a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1198ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1199a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1200a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++; \ 1201a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1202a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1203a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1204a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* The FC Transport Virtual Port Attributes: */ 1205a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1206a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Fixed Virtual Port Attributes */ 1207a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1208a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Dynamic Virtual Port Attributes */ 1209a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1210a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Private Virtual Port Attributes */ 1211a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1212a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_state, FC_VPORTSTATE_MAX_NAMELEN); 1213a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_last_state, FC_VPORTSTATE_MAX_NAMELEN); 1214a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 1215a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 1216a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1217a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1218ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_roles (struct device *dev, struct device_attribute *attr, 1219ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) 1220a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1221ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 1222a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1223a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->roles == FC_PORT_ROLE_UNKNOWN) 1224a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, 20, "unknown\n"); 1225a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return get_fc_port_roles_names(vport->roles, buf); 1226a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1227ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, roles, S_IRUGO, show_fc_vport_roles, NULL); 1228a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1229a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_type, FC_PORTTYPE_MAX_NAMELEN); 1230a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1231a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_show_function(symbolic_name, "%s\n", 1232a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart FC_VPORT_SYMBOLIC_NAMELEN + 1, ) 1233a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_vport_store_str_function(symbolic_name, FC_VPORT_SYMBOLIC_NAMELEN) 1234ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, symbolic_name, S_IRUGO | S_IWUSR, 1235a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_symbolic_name, store_fc_vport_symbolic_name); 1236a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1237a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1238ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_delete(struct device *dev, struct device_attribute *attr, 1239ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1240a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1241ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 12429ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart struct Scsi_Host *shost = vport_to_shost(vport); 12430d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen unsigned long flags; 12440d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen 12450d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen spin_lock_irqsave(shost->host_lock, flags); 12460d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) { 12470d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen spin_unlock_irqrestore(shost->host_lock, flags); 12480d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen return -EBUSY; 12490d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen } 12500d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen vport->flags |= FC_VPORT_DELETING; 12510d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen spin_unlock_irqrestore(shost->host_lock, flags); 1252a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 12539ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart fc_queue_work(shost, &vport->vport_delete_work); 1254a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; 1255a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1256ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, vport_delete, S_IWUSR, 1257a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, store_fc_vport_delete); 1258a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1259a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1260a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1261a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Enable/Disable vport 1262a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Write "1" to disable, write "0" to enable 1263a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1264a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1265ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_disable(struct device *dev, struct device_attribute *attr, 1266ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, 1267a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size_t count) 1268a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1269ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 1270a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); 1271a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 1272a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 1273a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1274a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) 1275a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; 1276a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1277a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*buf == '0') { 1278a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->vport_state != FC_VPORT_DISABLED) 1279a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EALREADY; 1280a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else if (*buf == '1') { 1281a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->vport_state == FC_VPORT_DISABLED) 1282a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EALREADY; 1283a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else 1284a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1285a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1286a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = i->f->vport_disable(vport, ((*buf == '0') ? false : true)); 1287a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1288a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1289ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, vport_disable, S_IWUSR, 1290a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, store_fc_vport_disable); 1291a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1292a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1293a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Attribute Management 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_show_function(field, format_string, sz, cast) \ 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1299ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##field (struct device *dev, \ 1300ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1302ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_##field) \ 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_##field(shost); \ 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_store_function(field) \ 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1311ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_##field(struct device *dev, \ 1312ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1313ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; \ 1316ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 13180f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; \ 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 13200f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); \ 13210f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (*cp && (*cp != '\n')) \ 13220f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; \ 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->set_host_##field(shost, val); \ 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1327b8d08210126a7b769b857720a59721a453a57a1eJames Smart#define fc_host_store_str_function(field, slen) \ 1328b8d08210126a7b769b857720a59721a453a57a1eJames Smartstatic ssize_t \ 1329ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_##field(struct device *dev, \ 1330ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1331ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1332b8d08210126a7b769b857720a59721a453a57a1eJames Smart{ \ 1333ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 1334b8d08210126a7b769b857720a59721a453a57a1eJames Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1335b8d08210126a7b769b857720a59721a453a57a1eJames Smart unsigned int cnt=count; \ 1336b8d08210126a7b769b857720a59721a453a57a1eJames Smart \ 1337b8d08210126a7b769b857720a59721a453a57a1eJames Smart /* count may include a LF at end of string */ \ 1338b8d08210126a7b769b857720a59721a453a57a1eJames Smart if (buf[cnt-1] == '\n') \ 1339b8d08210126a7b769b857720a59721a453a57a1eJames Smart cnt--; \ 1340b8d08210126a7b769b857720a59721a453a57a1eJames Smart if (cnt > ((slen) - 1)) \ 1341b8d08210126a7b769b857720a59721a453a57a1eJames Smart return -EINVAL; \ 1342b8d08210126a7b769b857720a59721a453a57a1eJames Smart memcpy(fc_host_##field(shost), buf, cnt); \ 1343b8d08210126a7b769b857720a59721a453a57a1eJames Smart i->f->set_host_##field(shost); \ 1344b8d08210126a7b769b857720a59721a453a57a1eJames Smart return count; \ 1345b8d08210126a7b769b857720a59721a453a57a1eJames Smart} 1346b8d08210126a7b769b857720a59721a453a57a1eJames Smart 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_attr(field, format_string, sz) \ 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, ) \ 1349ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_attr_cast(field, format_string, sz, cast) \ 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, (cast)) \ 1354ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rw_attr(field, format_string, sz) \ 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, ) \ 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_store_function(field) \ 1360ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO | S_IWUSR, \ 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, \ 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_host_##field) 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_enum_attr(title, maxlen) \ 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1366ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##title (struct device *dev, \ 1367ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1369ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; \ 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_##title) \ 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_##title(shost); \ 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_##title##_name(fc_host_##title(shost)); \ 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) \ 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; \ 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, maxlen, "%s\n", name); \ 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 1379ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, title, S_IRUGO, show_fc_host_##title, NULL) 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_HOST_ATTRIBUTE_RD(field) \ 1382ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_host_##field) \ 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1389a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_HOST_ATTRIBUTE_RD_NS(field) \ 1390ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 1391a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_host_attrs[count].attr.mode = S_IRUGO; \ 1392a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_host_attrs[count].store = NULL; \ 1393a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->host_attrs[count] = &i->private_host_attrs[count]; \ 1394a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1395a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_HOST_ATTRIBUTE_RW(field) \ 1397ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_host_##field) { \ 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_host_##field) \ 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_show_function(field, format_string, sz, cast) \ 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1409ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##field (struct device *dev, \ 1410ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1412ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_rd_attr(field, format_string, sz) \ 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_host_show_function(field, format_string, sz, ) \ 1418ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_rd_attr_cast(field, format_string, sz, cast) \ 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_host_show_function(field, format_string, sz, (cast)) \ 1423ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_HOST_ATTRIBUTE_RD(field) \ 1427ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_HOST_ATTRIBUTE_RW(field) \ 143491ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez{ \ 1435ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 143791ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez count++; \ 143891ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez} 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Fixed Host Attributes */ 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1444ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_classes (struct device *dev, 1445ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1447ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_supported_classes(shost) == FC_COS_UNSPECIFIED) 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unspecified\n"); 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_cos_names(fc_host_supported_classes(shost), buf); 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1454ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_classes, S_IRUGO, 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_classes, NULL); 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1458ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_fc4s (struct device *dev, 1459ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1461ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ssize_t)show_fc_fc4s(buf, fc_host_supported_fc4s(shost)); 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1464ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_fc4s, S_IRUGO, 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_fc4s, NULL); 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1468ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_speeds (struct device *dev, 1469ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1471ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_supported_speeds(shost) == FC_PORTSPEED_UNKNOWN) 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_port_speed_names(fc_host_supported_speeds(shost), buf); 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1478ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_speeds, S_IRUGO, 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_speeds, NULL); 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 14846b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmannfc_private_host_rd_attr_cast(permanent_port_name, "0x%llx\n", 20, 14856b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmann unsigned long long); 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr(maxframe_size, "%u bytes\n", 20); 1487a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_host_rd_attr(max_npiv_vports, "%u\n", 20); 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr(serial_number, "%s\n", (FC_SERIAL_NUMBER_SIZE +1)); 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Dynamic Host Attributes */ 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1494ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_active_fc4s (struct device *dev, 1495ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1497ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_active_fc4s) 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_active_fc4s(shost); 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ssize_t)show_fc_fc4s(buf, fc_host_active_fc4s(shost)); 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1505ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, active_fc4s, S_IRUGO, 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_active_fc4s, NULL); 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1509ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_speed (struct device *dev, 1510ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1512ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_speed) 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_speed(shost); 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_speed(shost) == FC_PORTSPEED_UNKNOWN) 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_port_speed_names(fc_host_speed(shost), buf); 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1523ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, speed, S_IRUGO, 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_speed, NULL); 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_attr(port_id, "0x%06x\n", 20); 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_enum_attr(port_type, FC_PORTTYPE_MAX_NAMELEN); 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_attr_cast(fabric_name, "0x%llx\n", 20, unsigned long long); 1531016131b8fffa1085b4ad165ab228116fdc278ebeJames Smartfc_host_rd_attr(symbolic_name, "%s\n", FC_SYMBOLIC_NAME_SIZE + 1); 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1533b8d08210126a7b769b857720a59721a453a57a1eJames Smartfc_private_host_show_function(system_hostname, "%s\n", 1534b8d08210126a7b769b857720a59721a453a57a1eJames Smart FC_SYMBOLIC_NAME_SIZE + 1, ) 1535b8d08210126a7b769b857720a59721a453a57a1eJames Smartfc_host_store_str_function(system_hostname, FC_SYMBOLIC_NAME_SIZE) 1536ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, system_hostname, S_IRUGO | S_IWUSR, 1537b8d08210126a7b769b857720a59721a453a57a1eJames Smart show_fc_host_system_hostname, store_fc_host_system_hostname); 1538b8d08210126a7b769b857720a59721a453a57a1eJames Smart 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Private Host Attributes */ 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1543ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_private_host_tgtid_bind_type(struct device *dev, 1544ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1546ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_tgtid_bind_type_name(fc_host_tgtid_bind_type(shost)); 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, FC_BINDTYPE_MAX_NAMELEN, "%s\n", name); 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1555d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com#define get_list_head_entry(pos, head, member) \ 1556d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com pos = list_entry((head)->next, typeof(*pos), member) 1557d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1559ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_private_host_tgtid_bind_type(struct device *dev, 1560ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, size_t count) 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1562ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1563d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com struct fc_rport *rport; 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_tgtid_binding_type val; 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (get_fc_tgtid_bind_type_match(buf, &val)) 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* if changing bind type, purge all unused consistent bindings */ 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != fc_host_tgtid_bind_type(shost)) { 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 1573d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com while (!list_empty(&fc_host_rport_bindings(shost))) { 1574d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com get_list_head_entry(rport, 1575d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com &fc_host_rport_bindings(shost), peers); 1576aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 1577aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 1578aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 1579d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com } 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_tgtid_bind_type(shost) = val; 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1587ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, tgtid_bind_type, S_IRUGO | S_IWUSR, 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_private_host_tgtid_bind_type, 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_private_host_tgtid_bind_type); 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 159191ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquezstatic ssize_t 1592ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_private_host_issue_lip(struct device *dev, 1593ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, size_t count) 159491ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez{ 1595ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 159691ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez struct fc_internal *i = to_fc_internal(shost->transportt); 159791ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez int ret; 159891ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 159991ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez /* ignore any data value written to the attribute */ 160091ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez if (i->f->issue_fc_host_lip) { 160191ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez ret = i->f->issue_fc_host_lip(shost); 160291ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez return ret ? ret: count; 160391ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez } 160491ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 160591ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez return -ENOENT; 160691ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez} 160791ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 1608ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, issue_lip, S_IWUSR, NULL, 160991ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez store_fc_private_host_issue_lip); 161091ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 1611a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_host_rd_attr(npiv_vports_inuse, "%u\n", 20); 1612a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1613a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Statistics Management 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Show a given an attribute in the statistics group */ 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1620ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesfc_stat_show(const struct device *dev, char *buf, unsigned long offset) 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1622ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_host_statistics *stats; 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssize_t ret = -ENOENT; 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offset > sizeof(struct fc_host_statistics) || 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset % sizeof(u64) != 0) 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds WARN_ON(1); 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_fc_host_stats) { 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stats = (i->f->get_fc_host_stats)(shost); 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (stats) 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = snprintf(buf, 20, "0x%llx\n", 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long long)*(u64 *)(((u8 *) stats) + offset)); 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* generate a read-only statistics attribute */ 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_statistic(name) \ 1643ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic ssize_t show_fcstat_##name(struct device *cd, \ 1644ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1645ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) \ 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fc_stat_show(cd, buf, \ 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offsetof(struct fc_host_statistics, name)); \ 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 1650ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, name, S_IRUGO, show_fcstat_##name, NULL) 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(seconds_since_last_reset); 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(tx_frames); 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(tx_words); 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(rx_frames); 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(rx_words); 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(lip_count); 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(nos_count); 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(error_frames); 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(dumped_frames); 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(link_failure_count); 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(loss_of_sync_count); 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(loss_of_signal_count); 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(prim_seq_protocol_err_count); 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(invalid_tx_word_count); 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(invalid_crc_count); 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_input_requests); 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_output_requests); 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_control_requests); 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_input_megabytes); 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_output_megabytes); 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1674ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesfc_reset_statistics(struct device *dev, struct device_attribute *attr, 1675ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1677ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* ignore any data value written to the attribute */ 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->reset_fc_host_stats) { 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->reset_fc_host_stats(shost); 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOENT; 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1688ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, reset_statistics, S_IWUSR, NULL, 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_reset_statistics); 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct attribute *fc_statistics_attrs[] = { 1692ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_seconds_since_last_reset.attr, 1693ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_tx_frames.attr, 1694ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_tx_words.attr, 1695ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_rx_frames.attr, 1696ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_rx_words.attr, 1697ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_lip_count.attr, 1698ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_nos_count.attr, 1699ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_error_frames.attr, 1700ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_dumped_frames.attr, 1701ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_link_failure_count.attr, 1702ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_loss_of_sync_count.attr, 1703ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_loss_of_signal_count.attr, 1704ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_prim_seq_protocol_err_count.attr, 1705ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_invalid_tx_word_count.attr, 1706ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_invalid_crc_count.attr, 1707ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_input_requests.attr, 1708ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_output_requests.attr, 1709ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_control_requests.attr, 1710ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_input_megabytes.attr, 1711ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_output_megabytes.attr, 1712ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_reset_statistics.attr, 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct attribute_group fc_statistics_group = { 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "statistics", 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .attrs = fc_statistics_attrs, 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1721a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1722a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Host Vport Attributes */ 1723a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1724a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int 1725a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_parse_wwn(const char *ns, u64 *nm) 1726a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1727a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int i, j; 1728a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u8 wwn[8]; 1729a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1730a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memset(wwn, 0, sizeof(wwn)); 1731a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1732a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* Validate and store the new name */ 1733a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart for (i=0, j=0; i < 16; i++) { 1734ecc3099002c1cc87e9e4b3dc5fdf7821828f6733Andy Shevchenko int value; 1735ecc3099002c1cc87e9e4b3dc5fdf7821828f6733Andy Shevchenko 1736ecc3099002c1cc87e9e4b3dc5fdf7821828f6733Andy Shevchenko value = hex_to_bin(*ns++); 1737ecc3099002c1cc87e9e4b3dc5fdf7821828f6733Andy Shevchenko if (value >= 0) 1738ecc3099002c1cc87e9e4b3dc5fdf7821828f6733Andy Shevchenko j = (j << 4) | value; 1739a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else 1740a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1741a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i % 2) { 1742a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart wwn[i/2] = j & 0xff; 1743a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart j = 0; 1744a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1745a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1746a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1747a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *nm = wwn_to_u64(wwn); 1748a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1749a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 1750a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1751a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1752a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1753a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1754a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * "Short-cut" sysfs variable to create a new vport on a FC Host. 1755a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Input is a string of the form "<WWPN>:<WWNN>". Other attributes 1756a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * will default to a NPIV-based FCP_Initiator; The WWNs are specified 1757a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * as hex characters, and may *not* contain any prefixes (e.g. 0x, x, etc) 1758a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1759a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1760ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_vport_create(struct device *dev, struct device_attribute *attr, 1761ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1762a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1763ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1764a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport_identifiers vid; 1765a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 1766a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; 1767a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 1768a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1769a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memset(&vid, 0, sizeof(vid)); 1770a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1771a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ 1772a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') 1773a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; 1774a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1775a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* validate we have enough characters for WWPN */ 1776a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((cnt != (16+1+16)) || (buf[16] != ':')) 1777a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1778a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1779a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[0], &vid.port_name); 1780a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1781a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1782a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1783a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[17], &vid.node_name); 1784a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1785a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1786a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1787a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.roles = FC_PORT_ROLE_FCP_INITIATOR; 1788a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.vport_type = FC_PORTTYPE_NPIV; 1789a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* vid.symbolic_name is already zero/NULL's */ 1790a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.disable = false; /* always enabled */ 1791a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1792a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* we only allow support on Channel 0 !!! */ 1793a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez stat = fc_vport_setup(shost, 0, &shost->shost_gendev, &vid, &vport); 1794a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1795a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1796ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, vport_create, S_IWUSR, NULL, 1797a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_host_vport_create); 1798a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1799a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1800a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1801a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * "Short-cut" sysfs variable to delete a vport on a FC Host. 1802a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Vport is identified by a string containing "<WWPN>:<WWNN>". 1803a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * The WWNs are specified as hex characters, and may *not* contain 1804a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * any prefixes (e.g. 0x, x, etc) 1805a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1806a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1807ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_vport_delete(struct device *dev, struct device_attribute *attr, 1808ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1809a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1810ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1811a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 1812a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 1813a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u64 wwpn, wwnn; 1814a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 1815a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; 1816a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat, match; 1817a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1818a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ 1819a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') 1820a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; 1821a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1822a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* validate we have enough characters for WWPN */ 1823a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((cnt != (16+1+16)) || (buf[16] != ':')) 1824a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1825a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1826a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[0], &wwpn); 1827a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1828a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1829a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1830a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[17], &wwnn); 1831a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1832a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1833a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1834a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 1835a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart match = 0; 1836a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* we only allow support on Channel 0 !!! */ 1837a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_for_each_entry(vport, &fc_host->vports, peers) { 1838a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((vport->channel == 0) && 1839a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart (vport->port_name == wwpn) && (vport->node_name == wwnn)) { 18400d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) 18410d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen break; 18420d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen vport->flags |= FC_VPORT_DELETING; 1843a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart match = 1; 1844a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart break; 1845a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1846a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1847a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 1848a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1849a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!match) 1850a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENODEV; 1851a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1852a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_vport_terminate(vport); 1853a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1854a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1855ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, vport_delete, S_IWUSR, NULL, 1856a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_host_vport_delete); 1857a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1858a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_host_match(struct attribute_container *cont, 18601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 18631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_host_device(dev)) 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev); 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t.host_attrs.ac == cont; 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_target_match(struct attribute_container *cont, 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_target_device(dev)) 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev->parent); 18881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t.target_attrs.ac == cont; 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fc_rport_dev_release(struct device *dev) 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = dev_to_rport(dev); 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(dev->parent); 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(rport); 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint scsi_is_fc_rport(const struct device *dev) 19051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return dev->release == fc_rport_dev_release; 19071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(scsi_is_fc_rport); 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_rport_match(struct attribute_container *cont, 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 19151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_fc_rport(dev)) 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev->parent); 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 19251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->rport_attr_cont.ac == cont; 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19295c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 1930a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic void fc_vport_dev_release(struct device *dev) 1931a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1932a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport = dev_to_vport(dev); 1933a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev->parent); /* release kobj parent */ 1934a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 1935a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1936a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1937a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartint scsi_is_fc_vport(const struct device *dev) 1938a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1939a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return dev->release == fc_vport_dev_release; 1940a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1941a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James SmartEXPORT_SYMBOL(scsi_is_fc_vport); 1942a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1943a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int fc_vport_match(struct attribute_container *cont, 1944a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev) 1945a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1946a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 1947a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost; 1948a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i; 1949a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1950a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!scsi_is_fc_vport(dev)) 1951a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 1952a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport = dev_to_vport(dev); 1953a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1954a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart shost = vport_to_shost(vport); 1955a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!shost->transportt || shost->transportt->host_attrs.ac.class 1956a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart != &fc_host_class.class) 1957a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 1958a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1959a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i = to_fc_internal(shost->transportt); 1960a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return &i->vport_attr_cont.ac == cont; 1961a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1962a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1963a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1964c829c394165f981d49f05a9be228404d7a9398d4James Smart/** 1965c829c394165f981d49f05a9be228404d7a9398d4James Smart * fc_timed_out - FC Transport I/O timeout intercept handler 1966c829c394165f981d49f05a9be228404d7a9398d4James Smart * @scmd: The SCSI command which timed out 1967c829c394165f981d49f05a9be228404d7a9398d4James Smart * 1968c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine protects against error handlers getting invoked while a 1969c829c394165f981d49f05a9be228404d7a9398d4James Smart * rport is in a blocked state, typically due to a temporarily loss of 1970c829c394165f981d49f05a9be228404d7a9398d4James Smart * connectivity. If the error handlers are allowed to proceed, requests 1971c829c394165f981d49f05a9be228404d7a9398d4James Smart * to abort i/o, reset the target, etc will likely fail as there is no way 1972c829c394165f981d49f05a9be228404d7a9398d4James Smart * to communicate with the device to perform the requested function. These 1973c829c394165f981d49f05a9be228404d7a9398d4James Smart * failures may result in the midlayer taking the device offline, requiring 1974c829c394165f981d49f05a9be228404d7a9398d4James Smart * manual intervention to restore operation. 1975c829c394165f981d49f05a9be228404d7a9398d4James Smart * 1976c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine, called whenever an i/o times out, validates the state of 1977c829c394165f981d49f05a9be228404d7a9398d4James Smart * the underlying rport. If the rport is blocked, it returns 1978c829c394165f981d49f05a9be228404d7a9398d4James Smart * EH_RESET_TIMER, which will continue to reschedule the timeout. 1979c829c394165f981d49f05a9be228404d7a9398d4James Smart * Eventually, either the device will return, or devloss_tmo will fire, 1980c829c394165f981d49f05a9be228404d7a9398d4James Smart * and when the timeout then fires, it will be handled normally. 1981c829c394165f981d49f05a9be228404d7a9398d4James Smart * If the rport is not blocked, normal error handling continues. 1982c829c394165f981d49f05a9be228404d7a9398d4James Smart * 1983c829c394165f981d49f05a9be228404d7a9398d4James Smart * Notes: 1984c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine assumes no locks are held on entry. 1985eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 1986242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboestatic enum blk_eh_timer_return 1987c829c394165f981d49f05a9be228404d7a9398d4James Smartfc_timed_out(struct scsi_cmnd *scmd) 1988c829c394165f981d49f05a9be228404d7a9398d4James Smart{ 1989c829c394165f981d49f05a9be228404d7a9398d4James Smart struct fc_rport *rport = starget_to_rport(scsi_target(scmd->device)); 1990c829c394165f981d49f05a9be228404d7a9398d4James Smart 1991c829c394165f981d49f05a9be228404d7a9398d4James Smart if (rport->port_state == FC_PORTSTATE_BLOCKED) 1992242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboe return BLK_EH_RESET_TIMER; 1993c829c394165f981d49f05a9be228404d7a9398d4James Smart 1994242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboe return BLK_EH_NOT_HANDLED; 1995c829c394165f981d49f05a9be228404d7a9398d4James Smart} 1996c829c394165f981d49f05a9be228404d7a9398d4James Smart 19975c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com/* 1998bda232531f0c117921690ee3c060953c8f12e5a1James Smart * Called by fc_user_scan to locate an rport on the shost that 1999bda232531f0c117921690ee3c060953c8f12e5a1James Smart * matches the channel and target id, and invoke scsi_scan_target() 2000bda232531f0c117921690ee3c060953c8f12e5a1James Smart * on the rport. 20015c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com */ 2002bda232531f0c117921690ee3c060953c8f12e5a1James Smartstatic void 2003bda232531f0c117921690ee3c060953c8f12e5a1James Smartfc_user_scan_tgt(struct Scsi_Host *shost, uint channel, uint id, uint lun) 20045c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com{ 20055c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com struct fc_rport *rport; 2006bda232531f0c117921690ee3c060953c8f12e5a1James Smart unsigned long flags; 2007bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2008bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_lock_irqsave(shost->host_lock, flags); 20095c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 2010e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig list_for_each_entry(rport, &fc_host_rports(shost), peers) { 2011e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig if (rport->scsi_target_id == -1) 2012e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig continue; 20135c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 20140d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke if (rport->port_state != FC_PORTSTATE_ONLINE) 20150d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke continue; 20160d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke 2017bda232531f0c117921690ee3c060953c8f12e5a1James Smart if ((channel == rport->channel) && 2018bda232531f0c117921690ee3c060953c8f12e5a1James Smart (id == rport->scsi_target_id)) { 2019bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_unlock_irqrestore(shost->host_lock, flags); 2020bda232531f0c117921690ee3c060953c8f12e5a1James Smart scsi_scan_target(&rport->dev, channel, id, lun, 1); 2021bda232531f0c117921690ee3c060953c8f12e5a1James Smart return; 2022e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig } 2023e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig } 2024e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig 2025bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_unlock_irqrestore(shost->host_lock, flags); 2026bda232531f0c117921690ee3c060953c8f12e5a1James Smart} 2027bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2028bda232531f0c117921690ee3c060953c8f12e5a1James Smart/* 2029bda232531f0c117921690ee3c060953c8f12e5a1James Smart * Called via sysfs scan routines. Necessary, as the FC transport 2030bda232531f0c117921690ee3c060953c8f12e5a1James Smart * wants to place all target objects below the rport object. So this 2031bda232531f0c117921690ee3c060953c8f12e5a1James Smart * routine must invoke the scsi_scan_target() routine with the rport 2032bda232531f0c117921690ee3c060953c8f12e5a1James Smart * object as the parent. 2033bda232531f0c117921690ee3c060953c8f12e5a1James Smart */ 2034bda232531f0c117921690ee3c060953c8f12e5a1James Smartstatic int 2035bda232531f0c117921690ee3c060953c8f12e5a1James Smartfc_user_scan(struct Scsi_Host *shost, uint channel, uint id, uint lun) 2036bda232531f0c117921690ee3c060953c8f12e5a1James Smart{ 2037bda232531f0c117921690ee3c060953c8f12e5a1James Smart uint chlo, chhi; 2038bda232531f0c117921690ee3c060953c8f12e5a1James Smart uint tgtlo, tgthi; 2039bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2040bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) || 2041bda232531f0c117921690ee3c060953c8f12e5a1James Smart ((id != SCAN_WILD_CARD) && (id >= shost->max_id)) || 2042bda232531f0c117921690ee3c060953c8f12e5a1James Smart ((lun != SCAN_WILD_CARD) && (lun > shost->max_lun))) 2043bda232531f0c117921690ee3c060953c8f12e5a1James Smart return -EINVAL; 2044bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2045bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (channel == SCAN_WILD_CARD) { 2046bda232531f0c117921690ee3c060953c8f12e5a1James Smart chlo = 0; 2047bda232531f0c117921690ee3c060953c8f12e5a1James Smart chhi = shost->max_channel + 1; 2048bda232531f0c117921690ee3c060953c8f12e5a1James Smart } else { 2049bda232531f0c117921690ee3c060953c8f12e5a1James Smart chlo = channel; 2050bda232531f0c117921690ee3c060953c8f12e5a1James Smart chhi = channel + 1; 2051bda232531f0c117921690ee3c060953c8f12e5a1James Smart } 2052bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2053bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (id == SCAN_WILD_CARD) { 2054bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgtlo = 0; 2055bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgthi = shost->max_id; 2056bda232531f0c117921690ee3c060953c8f12e5a1James Smart } else { 2057bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgtlo = id; 2058bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgthi = id + 1; 2059bda232531f0c117921690ee3c060953c8f12e5a1James Smart } 2060bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2061bda232531f0c117921690ee3c060953c8f12e5a1James Smart for ( ; chlo < chhi; chlo++) 2062bda232531f0c117921690ee3c060953c8f12e5a1James Smart for ( ; tgtlo < tgthi; tgtlo++) 2063bda232531f0c117921690ee3c060953c8f12e5a1James Smart fc_user_scan_tgt(shost, chlo, tgtlo, lun); 2064bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2065e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig return 0; 20665c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com} 20675c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 20687525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonoristatic int fc_tsk_mgmt_response(struct Scsi_Host *shost, u64 nexus, u64 tm_id, 20697525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori int result) 20707525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori{ 20717525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori struct fc_internal *i = to_fc_internal(shost->transportt); 20727525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori return i->f->tsk_mgmt_response(shost, nexus, tm_id, result); 20737525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori} 20747525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 20757525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonoristatic int fc_it_nexus_response(struct Scsi_Host *shost, u64 nexus, int result) 20767525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori{ 20777525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori struct fc_internal *i = to_fc_internal(shost->transportt); 20787525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori return i->f->it_nexus_response(shost, nexus, result); 20797525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori} 20807525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 20811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct scsi_transport_template * 20821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_attach_transport(struct fc_function_template *ft) 20831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int count; 208524669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen struct fc_internal *i = kzalloc(sizeof(struct fc_internal), 208624669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen GFP_KERNEL); 20871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!i)) 20891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 20901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.attrs = &i->starget_attrs[0]; 20921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.class = &fc_transport_class.class; 20931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.match = fc_target_match; 20941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_size = sizeof(struct fc_starget_attrs); 20951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->t.target_attrs); 20961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.attrs = &i->host_attrs[0]; 20981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.class = &fc_host_class.class; 20991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.match = fc_host_match; 21001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_size = sizeof(struct fc_host_attrs); 21011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ft->get_fc_host_stats) 21021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.statistics = &fc_statistics_group; 21031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->t.host_attrs); 21041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.attrs = &i->rport_attrs[0]; 21061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.class = &fc_rport_class.class; 21071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.match = fc_rport_match; 21081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->rport_attr_cont); 21091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2110a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.attrs = &i->vport_attrs[0]; 2111a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.class = &fc_vport_class.class; 2112a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.match = fc_vport_match; 2113a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_container_register(&i->vport_attr_cont); 2114a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 21151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f = ft; 21161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Transport uses the shost workq for scsi scanning */ 21181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.create_work_queue = 1; 21195c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 2120c829c394165f981d49f05a9be228404d7a9398d4James Smart i->t.eh_timed_out = fc_timed_out; 2121c829c394165f981d49f05a9be228404d7a9398d4James Smart 2122e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig i->t.user_scan = fc_user_scan; 21239ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 21247525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori /* target-mode drivers' functions */ 21257525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori i->t.tsk_mgmt_response = fc_tsk_mgmt_response; 21267525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori i->t.it_nexus_response = fc_it_nexus_response; 21277525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 21281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 21291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup SCSI Target Attributes. 21301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = 0; 21321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(node_name); 21331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(port_name); 21341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(port_id); 21351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_STARGET_NUM_ATTRS); 21371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = NULL; 21391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 21421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup SCSI Host Attributes. 21431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count=0; 21451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(node_name); 21461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_name); 21476b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmann SETUP_HOST_ATTRIBUTE_RD(permanent_port_name); 21481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_classes); 21491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_fc4s); 21501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_speeds); 21511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(maxframe_size); 2152a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_create) { 2153a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_HOST_ATTRIBUTE_RD_NS(max_npiv_vports); 2154a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_HOST_ATTRIBUTE_RD_NS(npiv_vports_inuse); 2155a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 21561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(serial_number); 21571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_id); 21591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_type); 21601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_state); 21611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(active_fc4s); 21621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(speed); 21631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(fabric_name); 2164016131b8fffa1085b4ad165ab228116fdc278ebeJames Smart SETUP_HOST_ATTRIBUTE_RD(symbolic_name); 2165b8d08210126a7b769b857720a59721a453a57a1eJames Smart SETUP_HOST_ATTRIBUTE_RW(system_hostname); 21661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Transport-managed attributes */ 21681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_HOST_ATTRIBUTE_RW(tgtid_bind_type); 216991ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez if (ft->issue_fc_host_lip) 217091ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez SETUP_PRIVATE_HOST_ATTRIBUTE_RW(issue_lip); 2171a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_create) 2172a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_create); 2173a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_delete) 2174a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_delete); 21751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_HOST_NUM_ATTRS); 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = NULL; 21791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup Remote Port Attributes. 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count=0; 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RD(maxframe_size); 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RD(supported_classes); 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RW(dev_loss_tmo); 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(node_name); 21881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_name); 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_id); 21901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(roles); 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_state); 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(scsi_target_id); 2193fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo); 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_RPORT_NUM_ATTRS); 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = NULL; 21981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2199a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 2200a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Setup Virtual Port Attributes. 2201a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 2202a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count=0; 2203a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_state); 2204a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_last_state); 2205a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(node_name); 2206a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(port_name); 2207a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(roles); 2208a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_type); 2209a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_RW(symbolic_name); 2210a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_WR(vport_delete); 2211a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_WR(vport_disable); 2212a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2213a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart BUG_ON(count > FC_VPORT_NUM_ATTRS); 2214a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2215a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = NULL; 2216a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 22171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t; 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_attach_transport); 22201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid fc_release_transport(struct scsi_transport_template *t) 22221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 22231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(t); 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->t.target_attrs); 22261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->t.host_attrs); 22271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->rport_attr_cont); 2228a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_container_unregister(&i->vport_attr_cont); 22291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(i); 22311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_release_transport); 22331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2234aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2235aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_queue_work - Queue work to the fc_host workqueue. 2236aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2237aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @work: Work to queue for execution. 2238aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2239aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * Return value: 2240a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * 1 - work queued for execution 2241a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * 0 - work is already queued 2242a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * -EINVAL - work queue doesn't exist 2243eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2244aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int 2245aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_queue_work(struct Scsi_Host *shost, struct work_struct *work) 2246aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2247aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (unlikely(!fc_host_work_q(shost))) { 2248aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2249aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to queue work, " 2250aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2251aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2252aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2253aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -EINVAL; 2254aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2255aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2256aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return queue_work(fc_host_work_q(shost), work); 2257aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2258aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2259aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2260aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_flush_work - Flush a fc_host's workqueue. 2261aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2262eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2263aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2264aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_flush_work(struct Scsi_Host *shost) 2265aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2266aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host_work_q(shost)) { 2267aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2268aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to flush work, " 2269aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2270aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2271aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return; 2272aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2273aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2274aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart flush_workqueue(fc_host_work_q(shost)); 2275aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2276aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2277aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2278aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_queue_devloss_work - Schedule work for the fc_host devloss workqueue. 2279aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2280aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @work: Work to queue for execution. 2281aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @delay: jiffies to delay the work queuing 2282aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2283aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * Return value: 22840f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * 1 on success / 0 already queued / < 0 for error 2285eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2286aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int 2287c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_queue_devloss_work(struct Scsi_Host *shost, struct delayed_work *work, 2288aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart unsigned long delay) 2289aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2290aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (unlikely(!fc_host_devloss_work_q(shost))) { 2291aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2292aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to queue work, " 2293aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2294aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2295aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2296aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -EINVAL; 2297aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2298aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2299aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return queue_delayed_work(fc_host_devloss_work_q(shost), work, delay); 2300aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2301aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2302aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2303aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_flush_devloss - Flush a fc_host's devloss workqueue. 2304aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2305eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2306aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2307aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_flush_devloss(struct Scsi_Host *shost) 2308aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2309aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host_devloss_work_q(shost)) { 2310aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2311aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to flush work, " 2312aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2313aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2314aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return; 2315aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2316aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2317aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart flush_workqueue(fc_host_devloss_work_q(shost)); 2318aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2319aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 23201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2322eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remove_host - called to terminate any fc_transport-related elements for a scsi host. 2323eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @shost: Which &Scsi_Host 23241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 23251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is expected to be called immediately preceeding the 23261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a driver's call to scsi_remove_host(). 23271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 23281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * WARNING: A driver utilizing the fc_transport, which fails to call 2329eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * this routine prior to scsi_remove_host(), will leave dangling 23301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * objects in /sys/class/fc_remote_ports. Access to any of these 23311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * objects can result in a system crash !!! 23321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 23331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 23341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2335eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 23361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 23371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remove_host(struct Scsi_Host *shost) 23381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2339a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport = NULL, *next_vport = NULL; 2340a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_rport *rport = NULL, *next_rport = NULL; 2341aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct workqueue_struct *work_q; 2342aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 2343a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 2344a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2345a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 2346a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2347a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* Remove any vports */ 23489ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers) 23499ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart fc_queue_work(shost, &vport->vport_delete_work); 23501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Remove any remote ports */ 23521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry_safe(rport, next_rport, 2353aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart &fc_host->rports, peers) { 2354aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 2355aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 2356aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 2357aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2358aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 23591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry_safe(rport, next_rport, 2360aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart &fc_host->rport_bindings, peers) { 2361aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 2362aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 2363aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 2364aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2365aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2366a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 2367a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2368aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all scan work items */ 2369aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_flush_work(shost); 2370aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2371aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all stgt delete, and rport delete work items, then kill it */ 2372aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->work_q) { 2373aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart work_q = fc_host->work_q; 2374aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q = NULL; 2375aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(work_q); 2376aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2377aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2378aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all devloss work items, then kill it */ 2379aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->devloss_work_q) { 2380aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart work_q = fc_host->devloss_work_q; 2381aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->devloss_work_q = NULL; 2382aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(work_q); 2383aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 23841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remove_host); 23861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2387fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christiestatic void fc_terminate_rport_io(struct fc_rport *rport) 2388fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie{ 2389fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie struct Scsi_Host *shost = rport_to_shost(rport); 2390fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie struct fc_internal *i = to_fc_internal(shost->transportt); 2391fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie 2392fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie /* Involve the LLDD if possible to terminate all io on the rport. */ 2393fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie if (i->f->terminate_rport_io) 2394fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie i->f->terminate_rport_io(rport); 2395fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie 2396fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie /* 2397fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie * must unblock to flush queued IO. The caller will have set 2398fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie * the port_state or flags, so that fc_remote_port_chkready will 2399fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie * fail IO. 2400fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie */ 2401fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie scsi_target_unblock(&rport->dev); 2402fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie} 2403aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2404aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2405aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_starget_delete - called to delete the scsi decendents of an rport 2406c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be operated on. 2407eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 2408eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Deletes target and all sdevs. 2409eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 241019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Comstatic void 2411c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_starget_delete(struct work_struct *work) 241219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com{ 2413c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 2414c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, stgt_delete_work); 241519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2416fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie fc_terminate_rport_io(rport); 241719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com scsi_remove_target(&rport->dev); 241819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com} 241919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2420aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2421aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2422aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_rport_final_delete - finish rport termination and delete it. 2423c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be deleted. 2424eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2425aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2426c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_rport_final_delete(struct work_struct *work) 2427aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2428c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 2429c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, rport_delete_work); 2430aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct device *dev = &rport->dev; 2431aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 24320f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 243392740b24ce6ddac6534fae985aab602548692186James Smart unsigned long flags; 24348798a694da59486e4a3ff0abeec183202fb34c20Michael Reed int do_callback = 0; 2435aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2436aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* 24379ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * if a scan is pending, flush the SCSI Host work_q so that 2438aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * that we can reclaim the rport scan work element. 2439aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart */ 2440aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (rport->flags & FC_RPORT_SCAN_PENDING) 2441aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_flush_work(shost); 2442aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2443fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie fc_terminate_rport_io(rport); 24449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 244592740b24ce6ddac6534fae985aab602548692186James Smart /* 244692740b24ce6ddac6534fae985aab602548692186James Smart * Cancel any outstanding timers. These should really exist 244792740b24ce6ddac6534fae985aab602548692186James Smart * only when rmmod'ing the LLDD and we're asking for 244892740b24ce6ddac6534fae985aab602548692186James Smart * immediate termination of the rports 244992740b24ce6ddac6534fae985aab602548692186James Smart */ 245092740b24ce6ddac6534fae985aab602548692186James Smart spin_lock_irqsave(shost->host_lock, flags); 245192740b24ce6ddac6534fae985aab602548692186James Smart if (rport->flags & FC_RPORT_DEVLOSS_PENDING) { 245292740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, flags); 245392740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 245492740b24ce6ddac6534fae985aab602548692186James Smart fc_flush_devloss(shost); 245592740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->dev_loss_work)) 245692740b24ce6ddac6534fae985aab602548692186James Smart fc_flush_devloss(shost); 245792740b24ce6ddac6534fae985aab602548692186James Smart spin_lock_irqsave(shost->host_lock, flags); 245892740b24ce6ddac6534fae985aab602548692186James Smart rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; 245992740b24ce6ddac6534fae985aab602548692186James Smart } 246092740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, flags); 246192740b24ce6ddac6534fae985aab602548692186James Smart 24620f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart /* Delete SCSI target and sdevs */ 24630f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->scsi_target_id != -1) 2464c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells fc_starget_delete(&rport->stgt_delete_work); 246592740b24ce6ddac6534fae985aab602548692186James Smart 246692740b24ce6ddac6534fae985aab602548692186James Smart /* 246792740b24ce6ddac6534fae985aab602548692186James Smart * Notify the driver that the rport is now dead. The LLDD will 246892740b24ce6ddac6534fae985aab602548692186James Smart * also guarantee that any communication to the rport is terminated 24694be98c0ca304c8a47998b29a7993664f71791250James Smart * 24704be98c0ca304c8a47998b29a7993664f71791250James Smart * Avoid this call if we already called it when we preserved the 24714be98c0ca304c8a47998b29a7993664f71791250James Smart * rport for the binding. 247292740b24ce6ddac6534fae985aab602548692186James Smart */ 24738798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_lock_irqsave(shost->host_lock, flags); 24744be98c0ca304c8a47998b29a7993664f71791250James Smart if (!(rport->flags & FC_RPORT_DEVLOSS_CALLBK_DONE) && 24758798a694da59486e4a3ff0abeec183202fb34c20Michael Reed (i->f->dev_loss_tmo_callbk)) { 24768798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->flags |= FC_RPORT_DEVLOSS_CALLBK_DONE; 24778798a694da59486e4a3ff0abeec183202fb34c20Michael Reed do_callback = 1; 24788798a694da59486e4a3ff0abeec183202fb34c20Michael Reed } 24798798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_unlock_irqrestore(shost->host_lock, flags); 24808798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 24818798a694da59486e4a3ff0abeec183202fb34c20Michael Reed if (do_callback) 24820f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart i->f->dev_loss_tmo_callbk(rport); 24830f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 24849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_remove(rport->rqst_q); 24859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 2486aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart transport_remove_device(dev); 2487aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart device_del(dev); 2488aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart transport_destroy_device(dev); 24893bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(&shost->shost_gendev); /* for fc_host->rport list */ 24903bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(dev); /* for self-reference */ 2491aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2492aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2493aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 24941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 24951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_rport_create - allocates and creates a remote FC port. 24961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @shost: scsi host the remote port is connected to. 24971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @channel: Channel on shost port connected to. 24981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ids: The world wide names, fc address, and FC4 port 24991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * roles for the remote port. 25001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Allocates and creates the remoter port structure, including the 25021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * class and sysfs creation. 25031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 25051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2506eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 250744818efbad185eea75adad0e8cab97650a7370abAdrian Bunkstatic struct fc_rport * 25081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_rport_create(struct Scsi_Host *shost, int channel, 25091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport_identifiers *ids) 25101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2511aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 25121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *fci = to_fc_internal(shost->transportt); 25131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport; 25141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev; 25151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 25161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 25171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t size; 25181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size = (sizeof(struct fc_rport) + fci->f->dd_fcrport_size); 252024669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen rport = kzalloc(size, GFP_KERNEL); 25211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!rport)) { 2522cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison printk(KERN_ERR "%s: allocation failure\n", __func__); 25231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 25241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->maxframe_size = -1; 25271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->supported_classes = FC_COS_UNSPECIFIED; 25281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->dev_loss_tmo = fc_dev_loss_tmo; 25291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->node_name, &ids->node_name, sizeof(rport->node_name)); 25301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->port_name, &ids->port_name, sizeof(rport->port_name)); 25311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = ids->port_id; 25321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = ids->roles; 25331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_ONLINE; 25341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fci->f->dd_fcrport_size) 25351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->dd_data = &rport[1]; 25361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->channel = channel; 25370f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = -1; 25381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2539c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_DELAYED_WORK(&rport->dev_loss_work, fc_timeout_deleted_rport); 2540c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_DELAYED_WORK(&rport->fail_io_work, fc_timeout_fail_rport_io); 2541c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->scan_work, fc_scsi_scan_rport); 2542c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->stgt_delete_work, fc_starget_delete); 2543c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->rport_delete_work, fc_rport_final_delete); 25441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 25461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->number = fc_host->next_rport_number++; 2548a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles & FC_PORT_ROLE_FCP_TARGET) 25491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->scsi_target_id = fc_host->next_target_id++; 25501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 25511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->scsi_target_id = -1; 2552aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_add_tail(&rport->peers, &fc_host->rports); 25533bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart get_device(&shost->shost_gendev); /* for fc_host->rport list */ 25541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 25561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev = &rport->dev; 25583bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart device_initialize(dev); /* takes self reference */ 25593bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart dev->parent = get_device(&shost->shost_gendev); /* parent reference */ 25601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->release = fc_rport_dev_release; 256171610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_set_name(dev, "rport-%d:%d-%d", 256271610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers shost->host_no, channel, rport->number); 25631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_setup_device(dev); 25641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = device_add(dev); 25661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) { 25671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "FC Remote Port device_add failed\n"); 25681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto delete_rport; 25691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 25701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_add_device(dev); 25711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_configure_device(dev); 25721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_rportadd(shost, rport); 25749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* ignore any bsg add error - we just can't do sgio */ 25759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 2576a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles & FC_PORT_ROLE_FCP_TARGET) { 25771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 2578aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 25791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 2580aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 25811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 25831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdelete_rport: 25851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_destroy_device(dev); 25861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 25871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_del(&rport->peers); 25883bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(&shost->shost_gendev); /* for fc_host->rport list */ 25891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 25901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(dev->parent); 25911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(rport); 25921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 25931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 25941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 25951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2596eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_add - notify fc transport of the existence of a remote FC port. 25971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @shost: scsi host the remote port is connected to. 25981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @channel: Channel on shost port connected to. 25991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ids: The world wide names, fc address, and FC4 port 26001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * roles for the remote port. 26011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 26021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LLDD calls this routine to notify the transport of the existence 26031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of a remote port. The LLDD provides the unique identifiers (wwpn,wwn) 26041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the port, it's FC address (port_id), and the FC4 roles that are 26051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * active for the port. 26061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 26071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For ports that are FCP targets (aka scsi targets), the FC transport 26081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * maintains consistent target id bindings on behalf of the LLDD. 26091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A consistent target id binding is an assignment of a target id to 26101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a remote port identifier, which persists while the scsi host is 26111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attached. The remote port can disappear, then later reappear, and 26121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it's target id assignment remains the same. This allows for shifts 26131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in FC addressing (if binding by wwpn or wwnn) with no apparent 26141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * changes to the scsi subsystem which is based on scsi host number and 26151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target id values. Bindings are only valid during the attachment of 26161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the scsi host. If the host detaches, then later re-attaches, target 26171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * id bindings may change. 26181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 26191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is responsible for returning a remote port structure. 26201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The routine will search the list of remote ports it maintains 26211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * internally on behalf of consistent target id mappings. If found, the 26221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * remote port structure will be reused. Otherwise, a new remote port 26231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * structure will be allocated. 26241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 26251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Whenever a remote port is allocated, a new fc_remote_port class 26261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device is created. 26271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 26281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should not be called from interrupt context. 26291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 26301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 26311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2632eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 26331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fc_rport * 26341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_add(struct Scsi_Host *shost, int channel, 26351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport_identifiers *ids) 26361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 263719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct fc_internal *fci = to_fc_internal(shost->transportt); 2638aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 26391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport; 26401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 26411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int match = 0; 26421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2643aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* ensure any stgt delete functions are done */ 2644aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_work(shost); 2645aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 264619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 264719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Search the list of "active" rports, for an rport that has been 264819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * deleted, but we've held off the real delete while the target 264919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * is in a "blocked" state. 265019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 265119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_lock_irqsave(shost->host_lock, flags); 265219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2653aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_for_each_entry(rport, &fc_host->rports, peers) { 265419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 265519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) && 265619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->channel == channel)) { 265719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2658aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart switch (fc_host->tgtid_bind_type) { 265919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_WWPN: 266019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_NONE: 266119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_name == ids->port_name) 266219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 266319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 266419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_WWNN: 266519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->node_name == ids->node_name) 266619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 266719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 266819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_ID: 266919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_id == ids->port_id) 267019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 267119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 267219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 267319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 267419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (match) { 267519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 267619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memcpy(&rport->node_name, &ids->node_name, 267719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com sizeof(rport->node_name)); 267819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memcpy(&rport->port_name, &ids->port_name, 267919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com sizeof(rport->port_name)); 268019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_id = ids->port_id; 268119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 268219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_state = FC_PORTSTATE_ONLINE; 268319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->roles = ids->roles; 268419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 268519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 268619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 268719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (fci->f->dd_fcrport_size) 268819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memset(rport->dd_data, 0, 268919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com fci->f->dd_fcrport_size); 269019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 269119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 269292740b24ce6ddac6534fae985aab602548692186James Smart * If we were not a target, cancel the 269392740b24ce6ddac6534fae985aab602548692186James Smart * io terminate and rport timers, and 269492740b24ce6ddac6534fae985aab602548692186James Smart * we're done. 269592740b24ce6ddac6534fae985aab602548692186James Smart * 269692740b24ce6ddac6534fae985aab602548692186James Smart * If we were a target, but our new role 269792740b24ce6ddac6534fae985aab602548692186James Smart * doesn't indicate a target, leave the 269892740b24ce6ddac6534fae985aab602548692186James Smart * timers running expecting the role to 269992740b24ce6ddac6534fae985aab602548692186James Smart * change as the target fully logs in. If 270092740b24ce6ddac6534fae985aab602548692186James Smart * it doesn't, the target will be torn down. 270192740b24ce6ddac6534fae985aab602548692186James Smart * 270292740b24ce6ddac6534fae985aab602548692186James Smart * If we were a target, and our role shows 270392740b24ce6ddac6534fae985aab602548692186James Smart * we're still a target, cancel the timers 270492740b24ce6ddac6534fae985aab602548692186James Smart * and kick off a scan. 270519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 270619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 270792740b24ce6ddac6534fae985aab602548692186James Smart /* was a target, not in roles */ 270892740b24ce6ddac6534fae985aab602548692186James Smart if ((rport->scsi_target_id != -1) && 2709a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart (!(ids->roles & FC_PORT_ROLE_FCP_TARGET))) 271092740b24ce6ddac6534fae985aab602548692186James Smart return rport; 271119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 271219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 271392740b24ce6ddac6534fae985aab602548692186James Smart * Stop the fail io and dev_loss timers. 271492740b24ce6ddac6534fae985aab602548692186James Smart * If they flush, the port_state will 271592740b24ce6ddac6534fae985aab602548692186James Smart * be checked and will NOOP the function. 271619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 27170f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 27180f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_flush_devloss(shost); 271992740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->dev_loss_work)) 2720aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_devloss(shost); 2721aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2722aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 2723aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2724fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | 27254be98c0ca304c8a47998b29a7993664f71791250James Smart FC_RPORT_DEVLOSS_PENDING | 27264be98c0ca304c8a47998b29a7993664f71791250James Smart FC_RPORT_DEVLOSS_CALLBK_DONE); 272719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 272892740b24ce6ddac6534fae985aab602548692186James Smart /* if target, initiate a scan */ 272992740b24ce6ddac6534fae985aab602548692186James Smart if (rport->scsi_target_id != -1) { 273092740b24ce6ddac6534fae985aab602548692186James Smart rport->flags |= FC_RPORT_SCAN_PENDING; 273192740b24ce6ddac6534fae985aab602548692186James Smart scsi_queue_work(shost, 273292740b24ce6ddac6534fae985aab602548692186James Smart &rport->scan_work); 273392740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, 273492740b24ce6ddac6534fae985aab602548692186James Smart flags); 273592740b24ce6ddac6534fae985aab602548692186James Smart scsi_target_unblock(&rport->dev); 273692740b24ce6ddac6534fae985aab602548692186James Smart } else 273792740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, 273892740b24ce6ddac6534fae985aab602548692186James Smart flags); 2739a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart 27409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_goose_queue(rport); 27419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 274219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return rport; 274319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 274419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 274519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 274619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 274792740b24ce6ddac6534fae985aab602548692186James Smart /* 274892740b24ce6ddac6534fae985aab602548692186James Smart * Search the bindings array 274992740b24ce6ddac6534fae985aab602548692186James Smart * Note: if never a FCP target, you won't be on this list 275092740b24ce6ddac6534fae985aab602548692186James Smart */ 2751aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->tgtid_bind_type != FC_TGTID_BIND_NONE) { 27521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* search for a matching consistent binding */ 27541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2755aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_for_each_entry(rport, &fc_host->rport_bindings, 27561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds peers) { 27571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->channel != channel) 27581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 27591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2760aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart switch (fc_host->tgtid_bind_type) { 27611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWPN: 27621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->port_name == ids->port_name) 27631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 27641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWNN: 27661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->node_name == ids->node_name) 27671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 27681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_ID: 27701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->port_id == ids->port_id) 27711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 27721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_NONE: /* to keep compiler happy */ 27741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match) { 2778aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_move_tail(&rport->peers, &fc_host->rports); 27791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 27801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 27821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 27831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match) { 27841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->node_name, &ids->node_name, 27851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(rport->node_name)); 27861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->port_name, &ids->port_name, 27871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(rport->port_name)); 27881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = ids->port_id; 27891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = ids->roles; 27901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_ONLINE; 2791fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; 27921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 279319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (fci->f->dd_fcrport_size) 279419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memset(rport->dd_data, 0, 279519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com fci->f->dd_fcrport_size); 279619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2797a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles & FC_PORT_ROLE_FCP_TARGET) { 27981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 2799aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 28001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 2801a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2802a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart scsi_target_unblock(&rport->dev); 2803a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart } else 2804a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 28051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 28071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 281019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 281119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 28121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* No consistent binding found - create new remote port entry */ 28131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport = fc_rport_create(shost, channel, ids); 28141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 28161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 28171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_add); 28181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2821eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_delete - notifies the fc transport that a remote port is no longer in existence. 28221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port that no longer exists 28231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 28241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LLDD calls this routine to notify the transport that a remote 28251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * port is no longer part of the topology. Note: Although a port 28261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * may no longer be part of the topology, it may persist in the remote 282719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * ports displayed by the fc_host. We do this under 2 conditions: 2828eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 1) If the port was a scsi target, we delay its deletion by "blocking" it. 282919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * This allows the port to temporarily disappear, then reappear without 283019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * disrupting the SCSI device tree attached to it. During the "blocked" 283119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * period the port will still exist. 2832eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 2) If the port was a scsi target and disappears for longer than we 283319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * expect, we'll delete the port and the tear down the SCSI device tree 283419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * attached to it. However, we want to semi-persist the target id assigned 283519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * to that port if it eventually does exist. The port structure will 283619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * remain (although with minimal information) so that the target id 283719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * bindings remails. 28381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 28391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If the remote port is not an FCP Target, it will be fully torn down 28401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and deallocated, including the fc_remote_port class device. 28411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 284219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port is an FCP Target, the port will be placed in a 284319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * temporary blocked state. From the LLDD's perspective, the rport no 284419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * longer exists. From the SCSI midlayer's perspective, the SCSI target 284519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * exists, but all sdevs on it are blocked from further I/O. The following 2846eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * is then expected. 2847eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 284819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port does not return (signaled by a LLDD call to 284919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * fc_remote_port_add()) within the dev_loss_tmo timeout, then the 285019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi target is removed - killing all outstanding i/o and removing the 285119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi devices attached ot it. The port structure will be marked Not 285219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Present and be partially cleared, leaving only enough information to 285319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * recognize the remote port relative to the scsi target id binding if 285419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * it later appears. The port will remain as long as there is a valid 285519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * binding (e.g. until the user changes the binding type or unloads the 285619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi host with the binding). 28571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 285819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port returns within the dev_loss_tmo value (and matches 285919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * according to the target id binding type), the port structure will be 286019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * reused. If it is no longer a SCSI target, the target will be torn 286119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * down. If it continues to be a SCSI target, then the target will be 286219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * unblocked (allowing i/o to be resumed), and a scan will be activated 286319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * to ensure that all luns are detected. 286419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * 286519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Called from normal process context only - cannot be called from interrupt. 28661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 28671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 28681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2869eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 28701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 28711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_delete(struct fc_rport *rport) 28721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2873aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 287436dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke unsigned long timeout = rport->dev_loss_tmo; 2875aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart unsigned long flags; 2876aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2877aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* 2878aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * No need to flush the fc_host work_q's, as all adds are synchronous. 2879aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2880aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * We do need to reclaim the rport scan work element, so eventually 2881aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * (in fc_rport_final_delete()) we'll flush the scsi host work_q if 2882aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * there's still a scan pending. 2883aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart */ 2884aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2885aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 28861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 288792740b24ce6ddac6534fae985aab602548692186James Smart if (rport->port_state != FC_PORTSTATE_ONLINE) { 2888aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 28891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 28901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 289292740b24ce6ddac6534fae985aab602548692186James Smart /* 289392740b24ce6ddac6534fae985aab602548692186James Smart * In the past, we if this was not an FCP-Target, we would 289492740b24ce6ddac6534fae985aab602548692186James Smart * unconditionally just jump to deleting the rport. 289592740b24ce6ddac6534fae985aab602548692186James Smart * However, rports can be used as node containers by the LLDD, 289692740b24ce6ddac6534fae985aab602548692186James Smart * and its not appropriate to just terminate the rport at the 289792740b24ce6ddac6534fae985aab602548692186James Smart * first sign of a loss in connectivity. The LLDD may want to 289892740b24ce6ddac6534fae985aab602548692186James Smart * send ELS traffic to re-validate the login. If the rport is 289992740b24ce6ddac6534fae985aab602548692186James Smart * immediately deleted, it makes it inappropriate for a node 290092740b24ce6ddac6534fae985aab602548692186James Smart * container. 290192740b24ce6ddac6534fae985aab602548692186James Smart * So... we now unconditionally wait dev_loss_tmo before 290292740b24ce6ddac6534fae985aab602548692186James Smart * destroying an rport. 290392740b24ce6ddac6534fae985aab602548692186James Smart */ 290492740b24ce6ddac6534fae985aab602548692186James Smart 2905aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_BLOCKED; 2906aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2907aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_DEVLOSS_PENDING; 2908aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2909aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2910aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 29117525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori if (rport->roles & FC_PORT_ROLE_FCP_INITIATOR && 29127525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori shost->active_mode & MODE_TARGET) 29137525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori fc_tgt_it_nexus_destroy(shost, (unsigned long)rport); 29147525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 291519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com scsi_target_block(&rport->dev); 29161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29170f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart /* see if we need to kill io faster than waiting for device loss */ 29180f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((rport->fast_io_fail_tmo != -1) && 2919fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie (rport->fast_io_fail_tmo < timeout)) 29200f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_queue_devloss_work(shost, &rport->fail_io_work, 29210f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo * HZ); 29220f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 292319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* cap the length the devices can be blocked until they are deleted */ 2924aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_devloss_work(shost, &rport->dev_loss_work, timeout * HZ); 29251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 29261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_delete); 29271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2929eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_rolechg - notifies the fc transport that the roles on a remote may have changed. 29301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port that changed. 2931eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @roles: New roles for this port. 29321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2933eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Description: The LLDD calls this routine to notify the transport that the 2934eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * roles on a remote port may have changed. The largest effect of this is 29351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if a port now becomes a FCP Target, it must be allocated a 29361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi target id. If the port is no longer a FCP target, any 29371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi target id value assigned to it will persist in case the 29381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * role changes back to include FCP Target. No changes in the scsi 29391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * midlayer will be invoked if the role changes (in the expectation 29401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that the role will be resumed. If it doesn't normal error processing 29411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * will take place). 29421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 29431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should not be called from interrupt context. 29441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 29451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 29461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2947eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 29481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 29491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_rolechg(struct fc_rport *rport, u32 roles) 29501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 29511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); 2952aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 29531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 29541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int create = 0; 29557525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori int ret; 29561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 2958a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (roles & FC_PORT_ROLE_FCP_TARGET) { 295919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->scsi_target_id == -1) { 296019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->scsi_target_id = fc_host->next_target_id++; 296119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com create = 1; 2962a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else if (!(rport->roles & FC_PORT_ROLE_FCP_TARGET)) 296319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com create = 1; 29647525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori } else if (shost->active_mode & MODE_TARGET) { 29657525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori ret = fc_tgt_it_nexus_create(shost, (unsigned long)rport, 29667525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori (char *)&rport->node_name); 29677525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori if (ret) 29687525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori printk(KERN_ERR "FC Remore Port tgt nexus failed %d\n", 29697525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori ret); 29701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 29711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 297219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->roles = roles; 297319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2974aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2975aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 297619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (create) { 297719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 297819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * There may have been a delete timer running on the 297919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * port. Ensure that it is cancelled as we now know 298019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * the port is an FCP Target. 298119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Note: we know the rport is exists and in an online 298219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * state as the LLDD would not have had an rport 298319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * reference to pass us. 298419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * 298519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Take no action on the del_timer failure as the state 298619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * machine state change will validate the 298719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * transaction. 298819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 29890f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 29900f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_flush_devloss(shost); 299119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (!cancel_delayed_work(&rport->dev_loss_work)) 2992aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_devloss(shost); 2993aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2994aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 2995fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | 2996fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie FC_RPORT_DEVLOSS_PENDING); 2997aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 2998aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2999aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* ensure any stgt delete functions are done */ 3000aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_work(shost); 300119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 30021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 3003aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 3004aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 30051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 3006aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 3007a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart scsi_target_unblock(&rport->dev); 300819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 30091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 30101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_rolechg); 30111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 30121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3013eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_timeout_deleted_rport - Timeout handler for a deleted remote port. 301492740b24ce6ddac6534fae985aab602548692186James Smart * @work: rport target that failed to reappear in the allotted time. 3015eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 3016eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Description: An attempt to delete a remote port blocks, and if it fails 3017eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * to return in the allotted time this gets called. 3018eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 30191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 3020c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_timeout_deleted_rport(struct work_struct *work) 30211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3022c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 3023c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, dev_loss_work.work); 302419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct Scsi_Host *shost = rport_to_shost(rport); 30254be98c0ca304c8a47998b29a7993664f71791250James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 3026aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 302719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com unsigned long flags; 30288798a694da59486e4a3ff0abeec183202fb34c20Michael Reed int do_callback = 0; 30291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 303019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_lock_irqsave(shost->host_lock, flags); 30311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3032aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; 3033aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 30341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 303592740b24ce6ddac6534fae985aab602548692186James Smart * If the port is ONLINE, then it came back. If it was a SCSI 303692740b24ce6ddac6534fae985aab602548692186James Smart * target, validate it still is. If not, tear down the 303792740b24ce6ddac6534fae985aab602548692186James Smart * scsi_target on it. 30381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3039aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if ((rport->port_state == FC_PORTSTATE_ONLINE) && 304092740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) && 3041a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart !(rport->roles & FC_PORT_ROLE_FCP_TARGET)) { 304219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 3043aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "blocked FC remote port time out: no longer" 3044aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart " a FCP target, removing starget\n"); 3045aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 3046a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart scsi_target_unblock(&rport->dev); 3047a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart fc_queue_work(shost, &rport->stgt_delete_work); 304819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 304919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 30501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 305192740b24ce6ddac6534fae985aab602548692186James Smart /* NOOP state - we're flushing workq's */ 305219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_state != FC_PORTSTATE_BLOCKED) { 305319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 305419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 305592740b24ce6ddac6534fae985aab602548692186James Smart "blocked FC remote port time out: leaving" 305692740b24ce6ddac6534fae985aab602548692186James Smart " rport%s alone\n", 305792740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) ? " and starget" : ""); 305819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 305919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 30601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 306192740b24ce6ddac6534fae985aab602548692186James Smart if ((fc_host->tgtid_bind_type == FC_TGTID_BIND_NONE) || 306292740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id == -1)) { 3063aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 3064aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 306519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 306692740b24ce6ddac6534fae985aab602548692186James Smart "blocked FC remote port time out: removing" 306792740b24ce6ddac6534fae985aab602548692186James Smart " rport%s\n", 306892740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) ? " and starget" : ""); 3069aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 3070aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 307119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 307219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 30731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 307419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 307519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com "blocked FC remote port time out: removing target and " 307619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com "saving binding\n"); 307719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 3078aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_move_tail(&rport->peers, &fc_host->rport_bindings); 30791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 30801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 308119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Note: We do not remove or clear the hostdata area. This allows 308219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * host-specific target data to persist along with the 308319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi_target_id. It's up to the host to manage it's hostdata area. 30841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 30851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 308619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 308719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Reinitialize port attributes that may change if the port comes back. 308819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 308919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->maxframe_size = -1; 309019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->supported_classes = FC_COS_UNSPECIFIED; 3091a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart rport->roles = FC_PORT_ROLE_UNKNOWN; 3092aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_NOTPRESENT; 3093fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; 30941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3095f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart /* 3096f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * Pre-emptively kill I/O rather than waiting for the work queue 3097f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * item to teardown the starget. (FCOE libFC folks prefer this 3098f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * and to have the rport_port_id still set when it's done). 3099f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart */ 3100f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3101f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart fc_terminate_rport_io(rport); 3102f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart 31038798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_lock_irqsave(shost->host_lock, flags); 31048798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 31058798a694da59486e4a3ff0abeec183202fb34c20Michael Reed if (rport->port_state == FC_PORTSTATE_NOTPRESENT) { /* still missing */ 3106f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart 31078798a694da59486e4a3ff0abeec183202fb34c20Michael Reed /* remove the identifiers that aren't used in the consisting binding */ 31088798a694da59486e4a3ff0abeec183202fb34c20Michael Reed switch (fc_host->tgtid_bind_type) { 31098798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_BY_WWPN: 31108798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->node_name = -1; 31118798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_id = -1; 31128798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 31138798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_BY_WWNN: 31148798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_name = -1; 31158798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_id = -1; 31168798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 31178798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_BY_ID: 31188798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->node_name = -1; 31198798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_name = -1; 31208798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 31218798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_NONE: /* to keep compiler happy */ 31228798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 31238798a694da59486e4a3ff0abeec183202fb34c20Michael Reed } 31248798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 31258798a694da59486e4a3ff0abeec183202fb34c20Michael Reed /* 31268798a694da59486e4a3ff0abeec183202fb34c20Michael Reed * As this only occurs if the remote port (scsi target) 31278798a694da59486e4a3ff0abeec183202fb34c20Michael Reed * went away and didn't come back - we'll remove 31288798a694da59486e4a3ff0abeec183202fb34c20Michael Reed * all attached scsi devices. 31298798a694da59486e4a3ff0abeec183202fb34c20Michael Reed */ 31308798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->flags |= FC_RPORT_DEVLOSS_CALLBK_DONE; 31318798a694da59486e4a3ff0abeec183202fb34c20Michael Reed fc_queue_work(shost, &rport->stgt_delete_work); 31328798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 31338798a694da59486e4a3ff0abeec183202fb34c20Michael Reed do_callback = 1; 313419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 313519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 31368798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_unlock_irqrestore(shost->host_lock, flags); 31374be98c0ca304c8a47998b29a7993664f71791250James Smart 31384be98c0ca304c8a47998b29a7993664f71791250James Smart /* 31394be98c0ca304c8a47998b29a7993664f71791250James Smart * Notify the driver that the rport is now dead. The LLDD will 31404be98c0ca304c8a47998b29a7993664f71791250James Smart * also guarantee that any communication to the rport is terminated 31414be98c0ca304c8a47998b29a7993664f71791250James Smart * 31424be98c0ca304c8a47998b29a7993664f71791250James Smart * Note: we set the CALLBK_DONE flag above to correspond 31434be98c0ca304c8a47998b29a7993664f71791250James Smart */ 31448798a694da59486e4a3ff0abeec183202fb34c20Michael Reed if (do_callback && i->f->dev_loss_tmo_callbk) 31454be98c0ca304c8a47998b29a7993664f71791250James Smart i->f->dev_loss_tmo_callbk(rport); 31461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 31471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31484be98c0ca304c8a47998b29a7993664f71791250James Smart 31491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3150eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_timeout_fail_rport_io - Timeout handler for a fast io failing on a disconnected SCSI target. 3151c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: rport to terminate io on. 31520f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * 31530f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * Notes: Only requests the failure of the io, not that all are flushed 31540f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * prior to returning. 3155eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 31560f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic void 3157c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_timeout_fail_rport_io(struct work_struct *work) 31580f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 3159c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 3160c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, fail_io_work.work); 31610f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 31620f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->port_state != FC_PORTSTATE_BLOCKED) 31630f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return; 31640f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 3165fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags |= FC_RPORT_FAST_FAIL_TIMEDOUT; 3166fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie fc_terminate_rport_io(rport); 31670f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 31680f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 31690f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart/** 31701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_scsi_scan_rport - called to perform a scsi scan on a remote port. 3171c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be scanned. 3172eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 31731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 3174c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_scsi_scan_rport(struct work_struct *work) 31751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3176c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 3177c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, scan_work); 3178aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 317903f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt struct fc_internal *i = to_fc_internal(shost->transportt); 318042e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com unsigned long flags; 318142e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 3182aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if ((rport->port_state == FC_PORTSTATE_ONLINE) && 318303f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt (rport->roles & FC_PORT_ROLE_FCP_TARGET) && 318403f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt !(i->f->disable_target_scan)) { 3185aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_scan_target(&rport->dev, rport->channel, 3186aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->scsi_target_id, SCAN_WILD_CARD, 1); 318742e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com } 3188aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 3189aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 3190aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags &= ~FC_RPORT_SCAN_PENDING; 319142e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 319242e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com} 319342e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 319465d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt/** 319565d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * fc_block_scsi_eh - Block SCSI eh thread for blocked fc_rport 319665d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * @cmnd: SCSI command that scsi_eh is trying to recover 319765d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * 319865d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * This routine can be called from a FC LLD scsi_eh callback. It 319965d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * blocks the scsi_eh thread until the fc_rport leaves the 32002f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * FC_PORTSTATE_BLOCKED, or the fast_io_fail_tmo fires. This is 32012f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * necessary to avoid the scsi_eh failing recovery actions for blocked 32022f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * rports which would lead to offlined SCSI devices. 32032f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * 32042f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * Returns: 0 if the fc_rport left the state FC_PORTSTATE_BLOCKED. 32052f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * FAST_IO_FAIL if the fast_io_fail_tmo fired, this should be 32062f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * passed back to scsi_eh. 320765d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt */ 32082f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmittint fc_block_scsi_eh(struct scsi_cmnd *cmnd) 320965d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt{ 321065d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt struct Scsi_Host *shost = cmnd->device->host; 321165d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); 321265d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt unsigned long flags; 321365d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt 321465d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_lock_irqsave(shost->host_lock, flags); 32152f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt while (rport->port_state == FC_PORTSTATE_BLOCKED && 32162f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt !(rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT)) { 321765d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_unlock_irqrestore(shost->host_lock, flags); 321865d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt msleep(1000); 321965d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_lock_irqsave(shost->host_lock, flags); 322065d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt } 322165d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_unlock_irqrestore(shost->host_lock, flags); 32222f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt 32232f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt if (rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT) 32242f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt return FAST_IO_FAIL; 32252f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt 32262f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt return 0; 322765d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt} 322865d430fa99cbd0e88d09a3343f697c51fc8a7009Christof SchmittEXPORT_SYMBOL(fc_block_scsi_eh); 322942e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 3230a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/** 3231a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * fc_vport_setup - allocates and creates a FC virtual port. 3232a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @shost: scsi host the virtual port is connected to. 3233a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @channel: Channel on shost port connected to. 3234a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @pdev: parent device for vport 3235a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @ids: The world wide names, FC4 port roles, etc for 3236a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the virtual port. 3237a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @ret_vport: The pointer to the created vport. 3238a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3239a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Allocates and creates the vport structure, calls the parent host 3240a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * to instantiate the vport, the completes w/ class and sysfs creation. 3241a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3242a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Notes: 3243a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * This routine assumes no locks are held on entry. 3244eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 3245a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int 3246a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezfc_vport_setup(struct Scsi_Host *shost, int channel, struct device *pdev, 3247a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport_identifiers *ids, struct fc_vport **ret_vport) 3248a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 3249a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3250a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *fci = to_fc_internal(shost->transportt); 3251a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 3252a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev; 3253a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 3254a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size_t size; 3255a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int error; 3256a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3257a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *ret_vport = NULL; 3258a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3259a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ( ! fci->f->vport_create) 3260a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOENT; 3261a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3262a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size = (sizeof(struct fc_vport) + fci->f->dd_fcvport_size); 3263a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport = kzalloc(size, GFP_KERNEL); 3264a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (unlikely(!vport)) { 3265cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison printk(KERN_ERR "%s: allocation failure\n", __func__); 3266a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOMEM; 3267a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3268a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3269a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_state = FC_VPORT_UNKNOWN; 3270a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_last_state = FC_VPORT_UNKNOWN; 3271a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->node_name = ids->node_name; 3272a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->port_name = ids->port_name; 3273a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->roles = ids->roles; 3274a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_type = ids->vport_type; 3275a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (fci->f->dd_fcvport_size) 3276a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->dd_data = &vport[1]; 3277a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->shost = shost; 3278a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->channel = channel; 3279a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags = FC_VPORT_CREATING; 32809ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart INIT_WORK(&vport->vport_delete_work, fc_vport_sched_delete); 3281a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3282a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3283a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3284a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (fc_host->npiv_vports_inuse >= fc_host->max_npiv_vports) { 3285a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3286a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 3287a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOSPC; 3288a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3289a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse++; 3290a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->number = fc_host->next_vport_number++; 3291a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_add_tail(&vport->peers, &fc_host->vports); 3292a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart get_device(&shost->shost_gendev); /* for fc_host->vport list */ 3293a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3294a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3295a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3296a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev = &vport->dev; 3297a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_initialize(dev); /* takes self reference */ 3298a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev->parent = get_device(pdev); /* takes parent reference */ 3299a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev->release = fc_vport_dev_release; 330071610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_set_name(dev, "vport-%d:%d-%d", 330171610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers shost->host_no, channel, vport->number); 3302a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_setup_device(dev); 3303a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3304a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = device_add(dev); 3305a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) { 3306a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR "FC Virtual Port device_add failed\n"); 3307a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart goto delete_vport; 3308a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3309a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_add_device(dev); 3310a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_configure_device(dev); 3311a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3312a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = fci->f->vport_create(vport, ids->disable); 3313a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) { 3314a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR "FC Virtual Port LLDD Create failed\n"); 3315a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart goto delete_vport_all; 3316a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3317a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3318a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 3319a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * if the parent isn't the physical adapter's Scsi_Host, ensure 3320a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the Scsi_Host at least contains ia symlink to the vport. 3321a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 3322a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (pdev != &shost->shost_gendev) { 3323a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = sysfs_create_link(&shost->shost_gendev.kobj, 332471610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers &dev->kobj, dev_name(dev)); 3325a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) 3326a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR 3327a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "%s: Cannot create vport symlinks for " 3328a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "%s, err=%d\n", 332971610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers __func__, dev_name(dev), error); 3330a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3331a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3332a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags &= ~FC_VPORT_CREATING; 3333a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3334a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3335a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev_printk(KERN_NOTICE, pdev, 333671610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers "%s created via shost%d channel %d\n", dev_name(dev), 3337a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart shost->host_no, channel); 3338a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3339a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *ret_vport = vport; 3340a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3341a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 3342a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3343a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartdelete_vport_all: 3344a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_remove_device(dev); 3345a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_del(dev); 3346a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartdelete_vport: 3347a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_destroy_device(dev); 3348a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3349a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_del(&vport->peers); 3350a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(&shost->shost_gendev); /* for fc_host->vport list */ 3351a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse--; 3352a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3353a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev->parent); 3354a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 3355a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3356a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return error; 3357a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 3358a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3359a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez/** 3360a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * fc_vport_create - Admin App or LLDD requests creation of a vport 3361a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @shost: scsi host the virtual port is connected to. 3362a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @channel: channel on shost port connected to. 3363a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @ids: The world wide names, FC4 port roles, etc for 3364a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * the virtual port. 3365a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * 3366a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * Notes: 3367a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * This routine assumes no locks are held on entry. 3368a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez */ 3369a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezstruct fc_vport * 3370a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezfc_vport_create(struct Scsi_Host *shost, int channel, 3371a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez struct fc_vport_identifiers *ids) 3372a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez{ 3373a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez int stat; 3374a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez struct fc_vport *vport; 3375a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez 3376a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez stat = fc_vport_setup(shost, channel, &shost->shost_gendev, 3377a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez ids, &vport); 3378a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez return stat ? NULL : vport; 3379a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez} 3380a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew VasquezEXPORT_SYMBOL(fc_vport_create); 3381a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3382a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/** 3383a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * fc_vport_terminate - Admin App or LLDD requests termination of a vport 3384a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @vport: fc_vport to be terminated 3385a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3386a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Calls the LLDD vport_delete() function, then deallocates and removes 3387a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the vport from the shost and object tree. 3388a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3389a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Notes: 3390a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * This routine assumes no locks are held on entry. 3391eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 3392a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartint 3393a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_vport_terminate(struct fc_vport *vport) 3394a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 3395a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); 3396a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3397a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 3398a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev = &vport->dev; 3399a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 3400a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 3401a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3402a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->vport_delete) 3403a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = i->f->vport_delete(vport); 3404a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else 3405a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = -ENOENT; 3406a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3407a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3408a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags &= ~FC_VPORT_DELETING; 3409a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!stat) { 3410a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags |= FC_VPORT_DELETED; 3411a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_del(&vport->peers); 3412a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse--; 3413a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(&shost->shost_gendev); /* for fc_host->vport list */ 3414a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3415a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3416a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3417a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 3418a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 3419a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3420a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (dev->parent != &shost->shost_gendev) 342171610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers sysfs_remove_link(&shost->shost_gendev.kobj, dev_name(dev)); 3422a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_remove_device(dev); 3423a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_del(dev); 3424a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_destroy_device(dev); 3425a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3426a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 3427a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Removing our self-reference should mean our 3428a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * release function gets called, which will drop the remaining 3429a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * parent reference and free the data structure. 3430a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 3431a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev); /* for self-reference */ 3432a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3433a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; /* SUCCESS */ 3434a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 3435a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James SmartEXPORT_SYMBOL(fc_vport_terminate); 3436a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 34379ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart/** 34389ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * fc_vport_sched_delete - workq-based delete request for a vport 34399ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * @work: vport to be deleted. 3440eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 34419ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartstatic void 34429ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartfc_vport_sched_delete(struct work_struct *work) 34439ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart{ 34449ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart struct fc_vport *vport = 34459ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart container_of(work, struct fc_vport, vport_delete_work); 34469ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart int stat; 34479ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 34489ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart stat = fc_vport_terminate(vport); 34499ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart if (stat) 34509ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart dev_printk(KERN_ERR, vport->dev.parent, 34519ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart "%s: %s could not be deleted created via " 3452cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison "shost%d channel %d - error %d\n", __func__, 345371610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_name(&vport->dev), vport->shost->host_no, 34549ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart vport->channel, stat); 34559ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart} 34569ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 3457a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 34589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/* 34599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * BSG support 34609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 34619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 34649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_destroy_bsgjob - routine to teardown/delete a fc bsg job 34659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: fc_bsg_job that is to be torn down 34669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 34679e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 34689e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_destroy_bsgjob(struct fc_bsg_job *job) 34699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 34709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart unsigned long flags; 34719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irqsave(&job->job_lock, flags); 34739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->ref_cnt) { 34749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 34759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 34769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 34779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 34789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(job->dev); /* release reference for the request */ 34809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->request_payload.sg_list); 34829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->reply_payload.sg_list); 34839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job); 34849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 34859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 34879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_jobdone - completion routine for bsg requests that the LLD has 34889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * completed 34899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: fc_bsg_job that is complete 34909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 34919e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 34929e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_jobdone(struct fc_bsg_job *job) 34939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 34949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req = job->req; 34959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *rsp = req->next_rq; 34969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 34979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 34989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = job->req->errors = job->reply->result; 3499b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali 35009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err < 0) 35019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* we're only returning the result field in the reply */ 35029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req->sense_len = sizeof(uint32_t); 35039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 35049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req->sense_len = job->reply_len; 35059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* we assume all request payload was transferred, residual == 0 */ 35079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->resid_len = 0; 35089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rsp) { 35109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart WARN_ON(job->reply->reply_payload_rcv_len > rsp->resid_len); 35119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* set reply (bidi) residual */ 35139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rsp->resid_len -= min(job->reply->reply_payload_rcv_len, 35149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rsp->resid_len); 35159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 3516b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_complete_request(req); 3517b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali} 3518b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali 3519b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali/** 3520b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali * fc_bsg_softirq_done - softirq done routine for destroying the bsg requests 3521fe5d20c818a8c5fe83d9f2223a051fb5bc50d180Randy Dunlap * @rq: BSG request that holds the job to be destroyed 3522b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali */ 3523b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavalistatic void fc_bsg_softirq_done(struct request *rq) 3524b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali{ 3525b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali struct fc_bsg_job *job = rq->special; 3526b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali unsigned long flags; 35279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 3528b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali spin_lock_irqsave(&job->job_lock, flags); 3529b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali job->state_flags |= FC_RQST_STATE_DONE; 3530b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali job->ref_cnt--; 3531b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali spin_unlock_irqrestore(&job->job_lock, flags); 35329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 3533b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_end_request_all(rq, rq->errors); 35349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_destroy_bsgjob(job); 35359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 35369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 35389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_job_timeout - handler for when a bsg request timesout 35399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @req: request that timed out 35409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 35419e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum blk_eh_timer_return 35429e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_job_timeout(struct request *req) 35439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 35449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job = (void *) req->special; 35459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = job->shost; 35469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 35479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart unsigned long flags; 35489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err = 0, done = 0; 35499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->rport && job->rport->port_state == FC_PORTSTATE_BLOCKED) 35519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return BLK_EH_RESET_TIMER; 35529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irqsave(&job->job_lock, flags); 35549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->state_flags & FC_RQST_STATE_DONE) 35559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart done = 1; 35569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 35579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->ref_cnt++; 35589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 35599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!done && i->f->bsg_timeout) { 35619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* call LLDD to abort the i/o as it has timed out */ 35629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = i->f->bsg_timeout(job); 3563b8f08645f80a0c93246f3539ce53d3cae6a91fa0Swen Schillig if (err == -EAGAIN) { 3564b8f08645f80a0c93246f3539ce53d3cae6a91fa0Swen Schillig job->ref_cnt--; 3565b8f08645f80a0c93246f3539ce53d3cae6a91fa0Swen Schillig return BLK_EH_RESET_TIMER; 3566b8f08645f80a0c93246f3539ce53d3cae6a91fa0Swen Schillig } else if (err) 35679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "ERROR: FC BSG request timeout - LLD " 35689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "abort failed with status %d\n", err); 35699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 35709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* the blk_end_sync_io() doesn't check the error */ 357247e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali if (done) 357347e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali return BLK_EH_NOT_HANDLED; 357447e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali else 357547e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali return BLK_EH_HANDLED; 35769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 35779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35789e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 35799e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_map_buffer(struct fc_bsg_buffer *buf, struct request *req) 35809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 35819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart size_t sz = (sizeof(struct scatterlist) * req->nr_phys_segments); 35829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(!req->nr_phys_segments); 35849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->sg_list = kzalloc(sz, GFP_KERNEL); 35869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!buf->sg_list) 35879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 35889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart sg_init_table(buf->sg_list, req->nr_phys_segments); 35899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->sg_cnt = blk_rq_map_sg(req->q, req, buf->sg_list); 35909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->payload_len = blk_rq_bytes(req); 35919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 35929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 35939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 35969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_req_to_bsgjob - Allocate/create the fc_bsg_job structure for the 35979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * bsg request 35989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: SCSI Host corresponding to the bsg object 35999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: (optional) FC Remote Port corresponding to the bsg object 36009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @req: BSG request that needs a job structure 36019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 36029e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 36039e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_req_to_bsgjob(struct Scsi_Host *shost, struct fc_rport *rport, 36049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req) 36059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 36069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 36079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *rsp = req->next_rq; 36089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job; 36099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 36109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(req->special); 36129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job = kzalloc(sizeof(struct fc_bsg_job) + i->f->dd_bsg_size, 36149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart GFP_KERNEL); 36159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!job) 36169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 36179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* 36199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * Note: this is a bit silly. 36209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * The request gets formatted as a SGIO v4 ioctl request, which 36219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * then gets reformatted as a blk request, which then gets 36229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * reformatted as a fc bsg request. And on completion, we have 36239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * to wrap return results such that SGIO v4 thinks it was a scsi 36249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * status. I hope this was all worth it. 36259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 36269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->special = job; 36289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->shost = shost; 36299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->rport = rport; 36309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req = req; 36319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (i->f->dd_bsg_size) 36329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dd_data = (void *)&job[1]; 36339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_init(&job->job_lock); 36349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->request = (struct fc_bsg_request *)req->cmd; 36359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->request_len = req->cmd_len; 36369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply = req->sense; 36379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = SCSI_SENSE_BUFFERSIZE; /* Size of sense buffer 36389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * allocated */ 36399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (req->bio) { 36409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_map_buffer(&job->request_payload, req); 36419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) 36429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto failjob_rls_job; 36439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rsp && rsp->bio) { 36459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_map_buffer(&job->reply_payload, rsp); 36469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) 36479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto failjob_rls_rqst_payload; 36489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->job_done = fc_bsg_jobdone; 36509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport) 36519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dev = &rport->dev; 36529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 36539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dev = &shost->shost_gendev; 36549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart get_device(job->dev); /* take a reference for the request */ 36559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->ref_cnt = 1; 36579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 36599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36619e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfailjob_rls_rqst_payload: 36629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->request_payload.sg_list); 36639e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfailjob_rls_job: 36649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job); 36659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 36669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 36679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36699e4f5e29610162fd426366f3b29e3cc6e575b858James Smartenum fc_dispatch_result { 36709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_BREAK, /* on return, q is locked, break from q loop */ 36719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_LOCKED, /* on return, q is locked, continue on */ 36729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_UNLOCKED, /* on return, q is unlocked, continue on */ 36739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart}; 36749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 36779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_host_dispatch - process fc host bsg requests and dispatch to LLDD 36785415907af1f5ef80c95147bacbd321b0d4236dd5Randy Dunlap * @q: fc host request queue 36799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: scsi host rport attached to 36809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: bsg job to be processed 36819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 36829e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum fc_dispatch_result 36839e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_host_dispatch(struct request_queue *q, struct Scsi_Host *shost, 36849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job) 36859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 36869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 36879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int cmdlen = sizeof(uint32_t); /* start with length of msgcode */ 36889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 36899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* Validate the host command */ 36919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart switch (job->request->msgcode) { 36929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_ADD_RPORT: 36939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_add_rport); 36949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_DEL_RPORT: 36979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_del_rport); 36989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 36999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_ELS_NOLOGIN: 37019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_els); 37029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be a xmt and rcv payloads */ 37039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 37049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 37059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 37069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 37079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 37099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_CT: 37119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_ct); 37129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be xmt and rcv payloads */ 37139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 37149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 37159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 37169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 37179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 37199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_VENDOR: 37219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_vendor); 37229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((shost->hostt->vendor_id == 0L) || 37239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (job->request->rqst_data.h_vendor.vendor_id != 37249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->hostt->vendor_id)) { 37259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ESRCH; 37269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 37279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 37299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart default: 37319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EBADR; 37329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 37339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we really have all the request data needed */ 37369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < cmdlen) { 37379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ENOMSG; 37389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 37399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = i->f->bsg_request(job); 37429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!ret) 37439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 37449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37459e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfail_host_msg: 37469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* return the errno failure code as the only status */ 37479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 374861ec33eb7d8e1e94a93a8243238dc5f9a183001aBrian King job->reply->reply_payload_rcv_len = 0; 37499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = ret; 37509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 37519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 37529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 37539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 37549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/* 37579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_goose_queue - restart rport queue in case it was stopped 37589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport to be restarted 37599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 37609e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 37619e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_goose_queue(struct fc_rport *rport) 37629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 37639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int flagset; 376439562e783928e3ea9ee2cbce99a756ab48d3c06aChristof Schmitt unsigned long flags; 37659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!rport->rqst_q) 37679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 37689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart get_device(&rport->dev); 37709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 377139562e783928e3ea9ee2cbce99a756ab48d3c06aChristof Schmitt spin_lock_irqsave(rport->rqst_q->queue_lock, flags); 37729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart flagset = test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags) && 37739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart !test_bit(QUEUE_FLAG_REENTER, &rport->rqst_q->queue_flags); 37749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (flagset) 37759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_set(QUEUE_FLAG_REENTER, rport->rqst_q); 37769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart __blk_run_queue(rport->rqst_q); 37779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (flagset) 37789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_clear(QUEUE_FLAG_REENTER, rport->rqst_q); 377939562e783928e3ea9ee2cbce99a756ab48d3c06aChristof Schmitt spin_unlock_irqrestore(rport->rqst_q->queue_lock, flags); 37809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(&rport->dev); 37829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 37839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 37869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rport_dispatch - process rport bsg requests and dispatch to LLDD 37875415907af1f5ef80c95147bacbd321b0d4236dd5Randy Dunlap * @q: rport request queue 37889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: scsi host rport attached to 37899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport request destined to 37909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: bsg job to be processed 37919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 37929e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum fc_dispatch_result 37939e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rport_dispatch(struct request_queue *q, struct Scsi_Host *shost, 37949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport, struct fc_bsg_job *job) 37959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 37969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 37979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int cmdlen = sizeof(uint32_t); /* start with length of msgcode */ 37989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 37999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* Validate the rport command */ 38019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart switch (job->request->msgcode) { 38029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_RPT_ELS: 38039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_rport_els); 38049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto check_bidi; 38059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_RPT_CT: 38079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_rport_ct); 38089e4f5e29610162fd426366f3b29e3cc6e575b858James Smartcheck_bidi: 38099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be xmt and rcv payloads */ 38109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 38119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 38129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 38139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 38149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 38169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart default: 38179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EBADR; 38189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 38199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we really have all the request data needed */ 38229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < cmdlen) { 38239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ENOMSG; 38249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 38259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = i->f->bsg_request(job); 38289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!ret) 38299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 38309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38319e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfail_rport_msg: 38329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* return the errno failure code as the only status */ 38339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 383461ec33eb7d8e1e94a93a8243238dc5f9a183001aBrian King job->reply->reply_payload_rcv_len = 0; 38359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = ret; 38369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 38379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 38389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 38399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 38409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 38439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_request_handler - generic handler for bsg requests 38449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: request queue to manage 38459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: Scsi_Host related to the bsg object 38469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: FC remote port related to the bsg object (optional) 38479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @dev: device structure for bsg object 38489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 38499e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 38509e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_request_handler(struct request_queue *q, struct Scsi_Host *shost, 38519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport, struct device *dev) 38529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 38539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req; 38549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job; 38559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart enum fc_dispatch_result ret; 38569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!get_device(dev)) 38589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 38599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart while (!blk_queue_plugged(q)) { 38612bc1c59dbdefdb6f9767e06efb86bbdb2923a8beMike Christie if (rport && (rport->port_state == FC_PORTSTATE_BLOCKED) && 38622bc1c59dbdefdb6f9767e06efb86bbdb2923a8beMike Christie !(rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT)) 38632bc1c59dbdefdb6f9767e06efb86bbdb2923a8beMike Christie break; 38649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req = blk_fetch_request(q); 38669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!req) 38679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 38689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport && (rport->port_state != FC_PORTSTATE_ONLINE)) { 38709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->errors = -ENXIO; 38719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 3872d88a714bfefa7aed7b9cb6c3721707fcd056b472Sarang Radke blk_end_request_all(req, -ENXIO); 38739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 38749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 38759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 38789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_req_to_bsgjob(shost, rport, req); 38809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) { 38819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->errors = ret; 3882d88a714bfefa7aed7b9cb6c3721707fcd056b472Sarang Radke blk_end_request_all(req, ret); 38839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 38849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 38859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job = req->special; 38889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we have the msgcode value at least */ 38909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < sizeof(uint32_t)) { 38919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 389261ec33eb7d8e1e94a93a8243238dc5f9a183001aBrian King job->reply->reply_payload_rcv_len = 0; 38939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = -ENOMSG; 38949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 38959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 38969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 38979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 38989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* the dispatch routines will unlock the queue_lock */ 39019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport) 39029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_rport_dispatch(q, shost, rport, job); 39039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 39049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_host_dispatch(q, shost, job); 39059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* did dispatcher hit state that can't process any more */ 39079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret == FC_DISPATCH_BREAK) 39089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 39099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* did dispatcher had released the lock */ 39119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret == FC_DISPATCH_UNLOCKED) 39129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 39139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 39169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(dev); 39179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 39189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 39199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 39229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_host_handler - handler for bsg requests for a fc host 39239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: fc host request queue 39249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 39259e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 39269e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_host_handler(struct request_queue *q) 39279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 39289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = q->queuedata; 39299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_request_handler(q, shost, NULL, &shost->shost_gendev); 39319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 39329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 39359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rport_handler - handler for bsg requests for a fc rport 39369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: rport request queue 39379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 39389e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 39399e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rport_handler(struct request_queue *q) 39409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 39419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport = q->queuedata; 39429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = rport_to_shost(rport); 39439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_request_handler(q, shost, rport, &rport->dev); 39459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 39469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 39499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_hostadd - Create and add the bsg hooks so we can receive requests 39509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: shost for fc_host 39519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @fc_host: fc_host adding the structures to 39529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 39539e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 39549e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_hostadd(struct Scsi_Host *shost, struct fc_host_attrs *fc_host) 39559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 39569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *dev = &shost->shost_gendev; 39579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 39589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request_queue *q; 39599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 39603c559ea8fd003962d9a28c64b2dd5c6d83ca6edbJames Bottomley char bsg_name[20]; 39619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host->rqst_q = NULL; 39639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!i->f->bsg_request) 39659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOTSUPP; 39669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart snprintf(bsg_name, sizeof(bsg_name), 39689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "fc_host%d", shost->host_no); 39699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q = __scsi_alloc_queue(shost, fc_bsg_host_handler); 39719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!q) { 39729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "fc_host%d: bsg interface failed to " 39739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - no request queue\n", 39749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->host_no); 39759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 39769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q->queuedata = shost; 39799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q); 3980b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_queue_softirq_done(q, fc_bsg_softirq_done); 39819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timed_out(q, fc_bsg_job_timeout); 39829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timeout(q, FC_DEFAULT_BSG_TIMEOUT); 39839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = bsg_register_queue(q, dev, bsg_name, NULL); 39859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err) { 39869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "fc_host%d: bsg interface failed to " 39879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - register queue\n", 39889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->host_no); 39899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 39909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return err; 39919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host->rqst_q = q; 39949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 39959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 39969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 39999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rportadd - Create and add the bsg hooks so we can receive requests 40009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: shost that rport is attached to 40019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport that the bsg hooks are being attached to 40029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 40039e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 40049e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rportadd(struct Scsi_Host *shost, struct fc_rport *rport) 40059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 40069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *dev = &rport->dev; 40079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 40089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request_queue *q; 40099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 40109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rport->rqst_q = NULL; 40129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!i->f->bsg_request) 40149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOTSUPP; 40159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q = __scsi_alloc_queue(shost, fc_bsg_rport_handler); 40179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!q) { 40189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "%s: bsg interface failed to " 40199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - no request queue\n", 40209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart dev->kobj.name); 40219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 40229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 40239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q->queuedata = rport; 40259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q); 4026b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_queue_softirq_done(q, fc_bsg_softirq_done); 40279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timed_out(q, fc_bsg_job_timeout); 40289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timeout(q, BLK_DEFAULT_SG_TIMEOUT); 40299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = bsg_register_queue(q, dev, NULL, NULL); 40319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err) { 40329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "%s: bsg interface failed to " 40339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - register queue\n", 40349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart dev->kobj.name); 40359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 40369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return err; 40379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 40389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rport->rqst_q = q; 40409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 40419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 40429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 40459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_remove - Deletes the bsg hooks on fchosts/rports 40469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: the request_queue that is to be torn down. 40479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 40489e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 40499e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_remove(struct request_queue *q) 40509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 40519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (q) { 40529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart bsg_unregister_queue(q); 40539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 40549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 40559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 40569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40589ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart/* Original Author: Martin Hicks */ 40599ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames SmartMODULE_AUTHOR("James Smart"); 40601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("FC Transport Attributes"); 40611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 40621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 40631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(fc_transport_init); 40641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(fc_transport_exit); 4065