scsi_transport_fc.c revision e07ebea0ccfaf627464460eb57d7f2fdbcccf8ec
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 <net/netlink.h> 3984314fd4740ad73550c76dee4a9578979d84af48James Smart#include <scsi/scsi_netlink_fc.h> 409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart#include <scsi/scsi_bsg_fc.h> 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "scsi_priv.h" 427525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori#include "scsi_transport_fc_internal.h" 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 44aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int fc_queue_work(struct Scsi_Host *, struct work_struct *); 459ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartstatic void fc_vport_sched_delete(struct work_struct *work); 46a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezstatic int fc_vport_setup(struct Scsi_Host *shost, int channel, 47a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *pdev, struct fc_vport_identifiers *ids, 48a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport **vport); 499e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_bsg_hostadd(struct Scsi_Host *, struct fc_host_attrs *); 509e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_bsg_rportadd(struct Scsi_Host *, struct fc_rport *); 519e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void fc_bsg_remove(struct request_queue *); 529e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void fc_bsg_goose_queue(struct fc_rport *); 53a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 54a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 5543ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie * Module Parameters 5643ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie */ 5743ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 5843ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie/* 5943ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie * dev_loss_tmo: the default number of seconds that the FC transport 6043ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie * should insulate the loss of a remote port. 6143ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie * The maximum will be capped by the value of SCSI_DEVICE_BLOCK_MAX_TIMEOUT. 6243ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie */ 6343ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiestatic unsigned int fc_dev_loss_tmo = 60; /* seconds */ 6443ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 6543ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiemodule_param_named(dev_loss_tmo, fc_dev_loss_tmo, uint, S_IRUGO|S_IWUSR); 6643ca910a9c90566308f39f51ac03a55f94a5f83cMike ChristieMODULE_PARM_DESC(dev_loss_tmo, 6743ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie "Maximum number of seconds that the FC transport should" 6843ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie " insulate the loss of a remote port. Once this value is" 6943ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie " exceeded, the scsi target is removed. Value should be" 7043ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie " between 1 and SCSI_DEVICE_BLOCK_MAX_TIMEOUT if" 7143ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie " fast_io_fail_tmo is not set."); 7243ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 7343ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie/* 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Redefine so that we can have same named attributes in the 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sdev/starget/host objects. 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 77ee959b00c335d7780136c5abda37809191fe52c3Tony Jones#define FC_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \ 78ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstruct device_attribute device_attr_##_prefix##_##_name = \ 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ATTR(_name,_mode,_show,_store) 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_enum_name_search(title, table_type, table) \ 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const char *get_fc_##title##_name(enum table_type table_key) \ 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name = NULL; \ 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 876391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (table[i].value == table_key) { \ 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = table[i].name; \ 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; \ 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return name; \ 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_enum_name_match(title, table_type, table) \ 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int get_fc_##title##_match(const char *table_key, \ 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum table_type *value) \ 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 1026391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(table_key, table[i].name, \ 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds table[i].matchlen) == 0) { \ 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *value = table[i].value; \ 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* success */ \ 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; /* failure */ \ 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_port_type values to ascii string name */ 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_port_type value; 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_type_names[] = { 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_UNKNOWN, "Unknown" }, 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_OTHER, "Other" }, 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NOTPRESENT, "Not Present" }, 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NPORT, "NPort (fabric via point-to-point)" }, 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NLPORT, "NLPort (fabric via loop)" }, 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_LPORT, "LPort (private loop)" }, 124951948a397e3ddc96658efd648b9d66622965b19Christof Schmitt { FC_PORTTYPE_PTP, "Point-To-Point (direct nport connection)" }, 125a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORTTYPE_NPIV, "NPIV VPORT" }, 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(port_type, fc_port_type, fc_port_type_names) 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_PORTTYPE_MAX_NAMELEN 50 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 130a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Reuse fc_port_type enum function for vport_type */ 131a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define get_fc_vport_type_name get_fc_port_type_name 132a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13484314fd4740ad73550c76dee4a9578979d84af48James Smart/* Convert fc_host_event_code values to ascii string name */ 13584314fd4740ad73550c76dee4a9578979d84af48James Smartstatic const struct { 13684314fd4740ad73550c76dee4a9578979d84af48James Smart enum fc_host_event_code value; 13784314fd4740ad73550c76dee4a9578979d84af48James Smart char *name; 13884314fd4740ad73550c76dee4a9578979d84af48James Smart} fc_host_event_code_names[] = { 13984314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LIP, "lip" }, 14084314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINKUP, "link_up" }, 14184314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINKDOWN, "link_down" }, 14284314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LIPRESET, "lip_reset" }, 14384314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_RSCN, "rscn" }, 14484314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_ADAPTER_CHANGE, "adapter_chg" }, 14584314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_UNKNOWN, "port_unknown" }, 14684314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_ONLINE, "port_online" }, 14784314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_OFFLINE, "port_offline" }, 14884314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_PORT_FABRIC, "port_fabric" }, 14984314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_LINK_UNKNOWN, "link_unknown" }, 15084314fd4740ad73550c76dee4a9578979d84af48James Smart { FCH_EVT_VENDOR_UNIQUE, "vendor_unique" }, 15184314fd4740ad73550c76dee4a9578979d84af48James Smart}; 15284314fd4740ad73550c76dee4a9578979d84af48James Smartfc_enum_name_search(host_event_code, fc_host_event_code, 15384314fd4740ad73550c76dee4a9578979d84af48James Smart fc_host_event_code_names) 15484314fd4740ad73550c76dee4a9578979d84af48James Smart#define FC_HOST_EVENT_CODE_MAX_NAMELEN 30 15584314fd4740ad73550c76dee4a9578979d84af48James Smart 15684314fd4740ad73550c76dee4a9578979d84af48James Smart 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_port_state values to ascii string name */ 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_port_state value; 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_state_names[] = { 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_UNKNOWN, "Unknown" }, 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_NOTPRESENT, "Not Present" }, 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_ONLINE, "Online" }, 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_OFFLINE, "Offline" }, 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_BLOCKED, "Blocked" }, 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_BYPASSED, "Bypassed" }, 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_DIAGNOSTICS, "Diagnostics" }, 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_LINKDOWN, "Linkdown" }, 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_ERROR, "Error" }, 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_LOOPBACK, "Loopback" }, 17242e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com { FC_PORTSTATE_DELETED, "Deleted" }, 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(port_state, fc_port_state, fc_port_state_names) 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_PORTSTATE_MAX_NAMELEN 20 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 178a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Convert fc_vport_state values to ascii string name */ 179a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic struct { 180a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart enum fc_vport_state value; 181a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *name; 182a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} fc_vport_state_names[] = { 183a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_UNKNOWN, "Unknown" }, 184a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_ACTIVE, "Active" }, 185a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_DISABLED, "Disabled" }, 186a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_LINKDOWN, "Linkdown" }, 187a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_INITIALIZING, "Initializing" }, 188a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_NO_FABRIC_SUPP, "No Fabric Support" }, 189a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_NO_FABRIC_RSCS, "No Fabric Resources" }, 190a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FABRIC_LOGOUT, "Fabric Logout" }, 191a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FABRIC_REJ_WWN, "Fabric Rejected WWN" }, 192a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_VPORT_FAILED, "VPort Failed" }, 193a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart}; 194a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_enum_name_search(vport_state, fc_vport_state, fc_vport_state_names) 195a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define FC_VPORTSTATE_MAX_NAMELEN 24 196a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 197a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Reuse fc_vport_state enum function for vport_last_state */ 198a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define get_fc_vport_last_state_name get_fc_vport_state_name 199a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 200a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_tgtid_binding_type values to ascii string name */ 2020ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_tgtid_binding_type value; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int matchlen; 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_tgtid_binding_type_names[] = { 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_NONE, "none", 4 }, 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_WWPN, "wwpn (World Wide Port Name)", 4 }, 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_WWNN, "wwnn (World Wide Node Name)", 4 }, 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_ID, "port_id (FC Address)", 7 }, 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(tgtid_bind_type, fc_tgtid_binding_type, 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_tgtid_binding_type_names) 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_match(tgtid_bind_type, fc_tgtid_binding_type, 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_tgtid_binding_type_names) 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_BINDTYPE_MAX_NAMELEN 30 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_bitfield_name_search(title, table) \ 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsget_fc_##title##_names(u32 table_key, char *buf) \ 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *prefix = ""; \ 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssize_t len = 0; \ 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 2276391a11375de5e2bb1eb8481e54619761dc65d9fTobias Klauser for (i = 0; i < ARRAY_SIZE(table); i++) { \ 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (table[i].value & table_key) { \ 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "%s%s", \ 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prefix, table[i].name); \ 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prefix = ", "; \ 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "\n"); \ 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; \ 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert FC_COS bit values to ascii string name */ 2400ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_cos_names[] = { 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS1, "Class 1" }, 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS2, "Class 2" }, 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS3, "Class 3" }, 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS4, "Class 4" }, 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS6, "Class 6" }, 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_bitfield_name_search(cos, fc_cos_names) 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert FC_PORTSPEED bit values to ascii string name */ 2540ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_speed_names[] = { 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_1GBIT, "1 Gbit" }, 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_2GBIT, "2 Gbit" }, 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_4GBIT, "4 Gbit" }, 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_10GBIT, "10 Gbit" }, 262c3d2350a8420dbf9d48f5f8a0fb72117bfcbc1b0James Smart { FC_PORTSPEED_8GBIT, "8 Gbit" }, 263c3d2350a8420dbf9d48f5f8a0fb72117bfcbc1b0James Smart { FC_PORTSPEED_16GBIT, "16 Gbit" }, 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_NOT_NEGOTIATED, "Not Negotiated" }, 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_bitfield_name_search(port_speed, fc_port_speed_names) 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_fc4s (char *buf, u8 *fc4_list) 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, len=0; 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < FC_FC4_LIST_SIZE; i++, fc4_list++) 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len , "0x%02x ", *fc4_list); 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "\n"); 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 281a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Convert FC_PORT_ROLE bit values to ascii string name */ 2820ad78200baf1f85a21e6b26c225717ad80980d8fArjan van de Venstatic const struct { 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 285a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} fc_port_role_names[] = { 286a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_FCP_TARGET, "FCP Target" }, 287a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_FCP_INITIATOR, "FCP Initiator" }, 288a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart { FC_PORT_ROLE_IP_PORT, "IP Port" }, 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 290a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_bitfield_name_search(port_roles, fc_port_role_names) 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Define roles that are specific to port_id. Values are relative to ROLE_MASK. 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_WELLKNOWN_PORTID_MASK 0xfffff0 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_WELLKNOWN_ROLE_MASK 0x00000f 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FPORT_PORTID 0x00000e 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FABCTLR_PORTID 0x00000d 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_DIRSRVR_PORTID 0x00000c 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_TIMESRVR_PORTID 0x00000b 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_MGMTSRVR_PORTID 0x00000a 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 304c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_timeout_deleted_rport(struct work_struct *work); 305c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_timeout_fail_rport_io(struct work_struct *work); 306c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsstatic void fc_scsi_scan_rport(struct work_struct *work); 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Attribute counts pre object type... 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Increase these values if you add attributes 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_STARGET_NUM_ATTRS 3 3130f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart#define FC_RPORT_NUM_ATTRS 10 314a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define FC_VPORT_NUM_ATTRS 9 315bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh#define FC_HOST_NUM_ATTRS 29 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fc_internal { 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_transport_template t; 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_function_template *f; 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For attributes : each object has : 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * An array of the actual attributes structures 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * An array of null-terminated pointers to the attribute 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * structures - used for mid-layer interaction. 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The attribute containers for the starget and host are are 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * part of the midlayer. As the remote port is specific to the 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc transport, we must provide the attribute container. 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 331ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_starget_attrs[ 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FC_STARGET_NUM_ATTRS]; 333ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *starget_attrs[FC_STARGET_NUM_ATTRS + 1]; 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 335ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_host_attrs[FC_HOST_NUM_ATTRS]; 336ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *host_attrs[FC_HOST_NUM_ATTRS + 1]; 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct transport_container rport_attr_cont; 339ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_rport_attrs[FC_RPORT_NUM_ATTRS]; 340ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *rport_attrs[FC_RPORT_NUM_ATTRS + 1]; 341a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 342a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct transport_container vport_attr_cont; 343ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute private_vport_attrs[FC_VPORT_NUM_ATTRS]; 344ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *vport_attrs[FC_VPORT_NUM_ATTRS + 1]; 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define to_fc_internal(tmpl) container_of(tmpl, struct fc_internal, t) 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 349d0a7e574007fd547d72ec693bfa35778623d0738James Bottomleystatic int fc_target_setup(struct transport_container *tc, struct device *dev, 350ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device *cdev) 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_target *starget = to_scsi_target(dev); 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = starget_to_rport(starget); 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if parent is remote port, use values from remote port. 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise, this host uses the fc_transport, but not the 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * remote port interface. As such, initialize to known non-values. 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport) { 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_node_name(starget) = rport->node_name; 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_name(starget) = rport->port_name; 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_id(starget) = rport->port_id; 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_node_name(starget) = -1; 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_name(starget) = -1; 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_id(starget) = -1; 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_transport_class, 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_transport", 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_target_setup, 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 379d0a7e574007fd547d72ec693bfa35778623d0738James Bottomleystatic int fc_host_setup(struct transport_container *tc, struct device *dev, 380ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device *cdev) 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = dev_to_shost(dev); 383aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3859ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart /* 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set default values easily detected by the midlayer as 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * failure cases. The scsi lldd is responsible for initializing 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * all transport attributes to valid values per host. 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 390aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->node_name = -1; 391aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_name = -1; 392aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->permanent_port_name = -1; 393aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->supported_classes = FC_COS_UNSPECIFIED; 394aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->supported_fc4s, 0, 395aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->supported_fc4s)); 396aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->supported_speeds = FC_PORTSPEED_UNKNOWN; 397aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->maxframe_size = -1; 398a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->max_npiv_vports = 0; 399aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->serial_number, 0, 400aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->serial_number)); 401bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh memset(fc_host->manufacturer, 0, 402bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh sizeof(fc_host->manufacturer)); 403bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh memset(fc_host->model, 0, 404bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh sizeof(fc_host->model)); 405bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh memset(fc_host->model_description, 0, 406bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh sizeof(fc_host->model_description)); 407bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh memset(fc_host->hardware_version, 0, 408bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh sizeof(fc_host->hardware_version)); 409bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh memset(fc_host->driver_version, 0, 410bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh sizeof(fc_host->driver_version)); 411bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh memset(fc_host->firmware_version, 0, 412bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh sizeof(fc_host->firmware_version)); 413bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh memset(fc_host->optionrom_version, 0, 414bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh sizeof(fc_host->optionrom_version)); 415aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 416aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_id = -1; 417aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_type = FC_PORTTYPE_UNKNOWN; 418aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->port_state = FC_PORTSTATE_UNKNOWN; 419aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart memset(fc_host->active_fc4s, 0, 420aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart sizeof(fc_host->active_fc4s)); 421aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->speed = FC_PORTSPEED_UNKNOWN; 422aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->fabric_name = -1; 423b8d08210126a7b769b857720a59721a453a57a1eJames Smart memset(fc_host->symbolic_name, 0, sizeof(fc_host->symbolic_name)); 424b8d08210126a7b769b857720a59721a453a57a1eJames Smart memset(fc_host->system_hostname, 0, sizeof(fc_host->system_hostname)); 425aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 426aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->tgtid_bind_type = FC_TGTID_BIND_BY_WWPN; 427aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 428aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart INIT_LIST_HEAD(&fc_host->rports); 429aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart INIT_LIST_HEAD(&fc_host->rport_bindings); 430a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart INIT_LIST_HEAD(&fc_host->vports); 431aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->next_rport_number = 0; 432aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->next_target_id = 0; 433a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->next_vport_number = 0; 434a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse = 0; 435aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 436aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name), 437aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers "fc_wq_%d", shost->host_no); 438112f661d6dac9af1235d2d05299fc2c9cb876ae7Nithin Nayak Sujir fc_host->work_q = alloc_workqueue(fc_host->work_q_name, 0, 0); 439aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host->work_q) 440aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -ENOMEM; 441aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 44243ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie fc_host->dev_loss_tmo = fc_dev_loss_tmo; 443aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers snprintf(fc_host->devloss_work_q_name, 444aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers sizeof(fc_host->devloss_work_q_name), 445aab0de245150c09e61c30962feb16aacde508dc3Kay Sievers "fc_dl_%d", shost->host_no); 446112f661d6dac9af1235d2d05299fc2c9cb876ae7Nithin Nayak Sujir fc_host->devloss_work_q = 447112f661d6dac9af1235d2d05299fc2c9cb876ae7Nithin Nayak Sujir alloc_workqueue(fc_host->devloss_work_q_name, 0, 0); 448aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host->devloss_work_q) { 449aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(fc_host->work_q); 450aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q = NULL; 451aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -ENOMEM; 452aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 453aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 4549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_hostadd(shost, fc_host); 4559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* ignore any bsg add error - we just can't do sgio */ 4569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 4589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 4599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4609e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int fc_host_remove(struct transport_container *tc, struct device *dev, 4619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *cdev) 4629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 4639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = dev_to_shost(dev); 4649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 4659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 4669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_remove(fc_host->rqst_q); 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_host_class, 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_host", 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_setup, 4739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host_remove, 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup and Remove actions for remote ports are handled 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in the service functions below. 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_rport_class, 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_remote_ports", 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 487a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Setup and Remove actions for virtual ports are handled 488a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * in the service functions below. 489a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 490a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic DECLARE_TRANSPORT_CLASS(fc_vport_class, 491a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "fc_vports", 492a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, 493a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, 494a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL); 495a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 496a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 49784314fd4740ad73550c76dee4a9578979d84af48James Smart * Netlink Infrastructure 498eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 49984314fd4740ad73550c76dee4a9578979d84af48James Smart 50084314fd4740ad73550c76dee4a9578979d84af48James Smartstatic atomic_t fc_event_seq; 50184314fd4740ad73550c76dee4a9578979d84af48James Smart 50284314fd4740ad73550c76dee4a9578979d84af48James Smart/** 50384314fd4740ad73550c76dee4a9578979d84af48James Smart * fc_get_event_number - Obtain the next sequential FC event number 50484314fd4740ad73550c76dee4a9578979d84af48James Smart * 50584314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 506eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * We could have inlined this, but it would have required fc_event_seq to 50784314fd4740ad73550c76dee4a9578979d84af48James Smart * be exposed. For now, live with the subroutine call. 50884314fd4740ad73550c76dee4a9578979d84af48James Smart * Atomic used to avoid lock/unlock... 509eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 51084314fd4740ad73550c76dee4a9578979d84af48James Smartu32 51184314fd4740ad73550c76dee4a9578979d84af48James Smartfc_get_event_number(void) 51284314fd4740ad73550c76dee4a9578979d84af48James Smart{ 51384314fd4740ad73550c76dee4a9578979d84af48James Smart return atomic_add_return(1, &fc_event_seq); 51484314fd4740ad73550c76dee4a9578979d84af48James Smart} 51584314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_get_event_number); 51684314fd4740ad73550c76dee4a9578979d84af48James Smart 51784314fd4740ad73550c76dee4a9578979d84af48James Smart 51884314fd4740ad73550c76dee4a9578979d84af48James Smart/** 51984314fd4740ad73550c76dee4a9578979d84af48James Smart * fc_host_post_event - called to post an even on an fc_host. 52084314fd4740ad73550c76dee4a9578979d84af48James Smart * @shost: host the event occurred on 52184314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_number: fc event number obtained from get_fc_event_number() 52284314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_code: fc_host event being posted 52384314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_data: 32bits of data for the event being posted 52484314fd4740ad73550c76dee4a9578979d84af48James Smart * 52584314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 52684314fd4740ad73550c76dee4a9578979d84af48James Smart * This routine assumes no locks are held on entry. 527eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 52884314fd4740ad73550c76dee4a9578979d84af48James Smartvoid 52984314fd4740ad73550c76dee4a9578979d84af48James Smartfc_host_post_event(struct Scsi_Host *shost, u32 event_number, 53084314fd4740ad73550c76dee4a9578979d84af48James Smart enum fc_host_event_code event_code, u32 event_data) 53184314fd4740ad73550c76dee4a9578979d84af48James Smart{ 53284314fd4740ad73550c76dee4a9578979d84af48James Smart struct sk_buff *skb; 53384314fd4740ad73550c76dee4a9578979d84af48James Smart struct nlmsghdr *nlh; 53484314fd4740ad73550c76dee4a9578979d84af48James Smart struct fc_nl_event *event; 53584314fd4740ad73550c76dee4a9578979d84af48James Smart const char *name; 536e07ebea0ccfaf627464460eb57d7f2fdbcccf8ecHong zhi guo u32 len; 53784314fd4740ad73550c76dee4a9578979d84af48James Smart int err; 53884314fd4740ad73550c76dee4a9578979d84af48James Smart 53984314fd4740ad73550c76dee4a9578979d84af48James Smart if (!scsi_nl_sock) { 54084314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOENT; 54184314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail; 54284314fd4740ad73550c76dee4a9578979d84af48James Smart } 54384314fd4740ad73550c76dee4a9578979d84af48James Smart 54484314fd4740ad73550c76dee4a9578979d84af48James Smart len = FC_NL_MSGALIGN(sizeof(*event)); 54584314fd4740ad73550c76dee4a9578979d84af48James Smart 546e07ebea0ccfaf627464460eb57d7f2fdbcccf8ecHong zhi guo skb = nlmsg_new(len, GFP_KERNEL); 54784314fd4740ad73550c76dee4a9578979d84af48James Smart if (!skb) { 54884314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 54984314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail; 55084314fd4740ad73550c76dee4a9578979d84af48James Smart } 55184314fd4740ad73550c76dee4a9578979d84af48James Smart 552e07ebea0ccfaf627464460eb57d7f2fdbcccf8ecHong zhi guo nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, len, 0); 55384314fd4740ad73550c76dee4a9578979d84af48James Smart if (!nlh) { 55484314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 55584314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_fail_skb; 55684314fd4740ad73550c76dee4a9578979d84af48James Smart } 557e07ebea0ccfaf627464460eb57d7f2fdbcccf8ecHong zhi guo event = nlmsg_data(nlh); 55884314fd4740ad73550c76dee4a9578979d84af48James Smart 55984314fd4740ad73550c76dee4a9578979d84af48James Smart INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC, 56084314fd4740ad73550c76dee4a9578979d84af48James Smart FC_NL_ASYNC_EVENT, len); 56184314fd4740ad73550c76dee4a9578979d84af48James Smart event->seconds = get_seconds(); 56284314fd4740ad73550c76dee4a9578979d84af48James Smart event->vendor_id = 0; 56384314fd4740ad73550c76dee4a9578979d84af48James Smart event->host_no = shost->host_no; 56484314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_datalen = sizeof(u32); /* bytes */ 56584314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_num = event_number; 56684314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_code = event_code; 56784314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_data = event_data; 56884314fd4740ad73550c76dee4a9578979d84af48James Smart 569ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, 570ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso GFP_KERNEL); 57184314fd4740ad73550c76dee4a9578979d84af48James Smart return; 57284314fd4740ad73550c76dee4a9578979d84af48James Smart 57384314fd4740ad73550c76dee4a9578979d84af48James Smartsend_fail_skb: 57484314fd4740ad73550c76dee4a9578979d84af48James Smart kfree_skb(skb); 57584314fd4740ad73550c76dee4a9578979d84af48James Smartsend_fail: 57684314fd4740ad73550c76dee4a9578979d84af48James Smart name = get_fc_host_event_code_name(event_code); 57784314fd4740ad73550c76dee4a9578979d84af48James Smart printk(KERN_WARNING 57884314fd4740ad73550c76dee4a9578979d84af48James Smart "%s: Dropped Event : host %d %s data 0x%08x - err %d\n", 579cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison __func__, shost->host_no, 58084314fd4740ad73550c76dee4a9578979d84af48James Smart (name) ? name : "<unknown>", event_data, err); 58184314fd4740ad73550c76dee4a9578979d84af48James Smart return; 58284314fd4740ad73550c76dee4a9578979d84af48James Smart} 58384314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_host_post_event); 58484314fd4740ad73550c76dee4a9578979d84af48James Smart 58584314fd4740ad73550c76dee4a9578979d84af48James Smart 58684314fd4740ad73550c76dee4a9578979d84af48James Smart/** 587eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_host_post_vendor_event - called to post a vendor unique event on an fc_host 58884314fd4740ad73550c76dee4a9578979d84af48James Smart * @shost: host the event occurred on 58984314fd4740ad73550c76dee4a9578979d84af48James Smart * @event_number: fc event number obtained from get_fc_event_number() 59084314fd4740ad73550c76dee4a9578979d84af48James Smart * @data_len: amount, in bytes, of vendor unique data 59184314fd4740ad73550c76dee4a9578979d84af48James Smart * @data_buf: pointer to vendor unique data 592eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @vendor_id: Vendor id 59384314fd4740ad73550c76dee4a9578979d84af48James Smart * 59484314fd4740ad73550c76dee4a9578979d84af48James Smart * Notes: 59584314fd4740ad73550c76dee4a9578979d84af48James Smart * This routine assumes no locks are held on entry. 596eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 59784314fd4740ad73550c76dee4a9578979d84af48James Smartvoid 59884314fd4740ad73550c76dee4a9578979d84af48James Smartfc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number, 599f14e2e29cdd07f80de6dec168dc2bb39de37eec3James Smart u32 data_len, char * data_buf, u64 vendor_id) 60084314fd4740ad73550c76dee4a9578979d84af48James Smart{ 60184314fd4740ad73550c76dee4a9578979d84af48James Smart struct sk_buff *skb; 60284314fd4740ad73550c76dee4a9578979d84af48James Smart struct nlmsghdr *nlh; 60384314fd4740ad73550c76dee4a9578979d84af48James Smart struct fc_nl_event *event; 604e07ebea0ccfaf627464460eb57d7f2fdbcccf8ecHong zhi guo u32 len; 60584314fd4740ad73550c76dee4a9578979d84af48James Smart int err; 60684314fd4740ad73550c76dee4a9578979d84af48James Smart 60784314fd4740ad73550c76dee4a9578979d84af48James Smart if (!scsi_nl_sock) { 60884314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOENT; 60984314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail; 61084314fd4740ad73550c76dee4a9578979d84af48James Smart } 61184314fd4740ad73550c76dee4a9578979d84af48James Smart 61284314fd4740ad73550c76dee4a9578979d84af48James Smart len = FC_NL_MSGALIGN(sizeof(*event) + data_len); 61384314fd4740ad73550c76dee4a9578979d84af48James Smart 614e07ebea0ccfaf627464460eb57d7f2fdbcccf8ecHong zhi guo skb = nlmsg_new(len, GFP_KERNEL); 61584314fd4740ad73550c76dee4a9578979d84af48James Smart if (!skb) { 61684314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 61784314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail; 61884314fd4740ad73550c76dee4a9578979d84af48James Smart } 61984314fd4740ad73550c76dee4a9578979d84af48James Smart 620e07ebea0ccfaf627464460eb57d7f2fdbcccf8ecHong zhi guo nlh = nlmsg_put(skb, 0, 0, SCSI_TRANSPORT_MSG, len, 0); 62184314fd4740ad73550c76dee4a9578979d84af48James Smart if (!nlh) { 62284314fd4740ad73550c76dee4a9578979d84af48James Smart err = -ENOBUFS; 62384314fd4740ad73550c76dee4a9578979d84af48James Smart goto send_vendor_fail_skb; 62484314fd4740ad73550c76dee4a9578979d84af48James Smart } 625e07ebea0ccfaf627464460eb57d7f2fdbcccf8ecHong zhi guo event = nlmsg_data(nlh); 62684314fd4740ad73550c76dee4a9578979d84af48James Smart 62784314fd4740ad73550c76dee4a9578979d84af48James Smart INIT_SCSI_NL_HDR(&event->snlh, SCSI_NL_TRANSPORT_FC, 62884314fd4740ad73550c76dee4a9578979d84af48James Smart FC_NL_ASYNC_EVENT, len); 62984314fd4740ad73550c76dee4a9578979d84af48James Smart event->seconds = get_seconds(); 63084314fd4740ad73550c76dee4a9578979d84af48James Smart event->vendor_id = vendor_id; 63184314fd4740ad73550c76dee4a9578979d84af48James Smart event->host_no = shost->host_no; 63284314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_datalen = data_len; /* bytes */ 63384314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_num = event_number; 63484314fd4740ad73550c76dee4a9578979d84af48James Smart event->event_code = FCH_EVT_VENDOR_UNIQUE; 63584314fd4740ad73550c76dee4a9578979d84af48James Smart memcpy(&event->event_data, data_buf, data_len); 63684314fd4740ad73550c76dee4a9578979d84af48James Smart 637ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso nlmsg_multicast(scsi_nl_sock, skb, 0, SCSI_NL_GRP_FC_EVENTS, 638ff491a7334acfd74e515c896632e37e401f52676Pablo Neira Ayuso GFP_KERNEL); 63984314fd4740ad73550c76dee4a9578979d84af48James Smart return; 64084314fd4740ad73550c76dee4a9578979d84af48James Smart 64184314fd4740ad73550c76dee4a9578979d84af48James Smartsend_vendor_fail_skb: 64284314fd4740ad73550c76dee4a9578979d84af48James Smart kfree_skb(skb); 64384314fd4740ad73550c76dee4a9578979d84af48James Smartsend_vendor_fail: 64484314fd4740ad73550c76dee4a9578979d84af48James Smart printk(KERN_WARNING 64584314fd4740ad73550c76dee4a9578979d84af48James Smart "%s: Dropped Event : host %d vendor_unique - err %d\n", 646cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison __func__, shost->host_no, err); 64784314fd4740ad73550c76dee4a9578979d84af48James Smart return; 64884314fd4740ad73550c76dee4a9578979d84af48James Smart} 64984314fd4740ad73550c76dee4a9578979d84af48James SmartEXPORT_SYMBOL(fc_host_post_vendor_event); 65084314fd4740ad73550c76dee4a9578979d84af48James Smart 65184314fd4740ad73550c76dee4a9578979d84af48James Smart 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __init int fc_transport_init(void) 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 65584314fd4740ad73550c76dee4a9578979d84af48James Smart int error; 65684314fd4740ad73550c76dee4a9578979d84af48James Smart 65784314fd4740ad73550c76dee4a9578979d84af48James Smart atomic_set(&fc_event_seq, 0); 65884314fd4740ad73550c76dee4a9578979d84af48James Smart 65984314fd4740ad73550c76dee4a9578979d84af48James Smart error = transport_class_register(&fc_host_class); 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 662a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = transport_class_register(&fc_vport_class); 663a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) 66448de68a40aef032a2e198437f4781a83bfb938dbMike Christie goto unreg_host_class; 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = transport_class_register(&fc_rport_class); 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 66748de68a40aef032a2e198437f4781a83bfb938dbMike Christie goto unreg_vport_class; 66848de68a40aef032a2e198437f4781a83bfb938dbMike Christie error = transport_class_register(&fc_transport_class); 66948de68a40aef032a2e198437f4781a83bfb938dbMike Christie if (error) 67048de68a40aef032a2e198437f4781a83bfb938dbMike Christie goto unreg_rport_class; 67148de68a40aef032a2e198437f4781a83bfb938dbMike Christie return 0; 67248de68a40aef032a2e198437f4781a83bfb938dbMike Christie 67348de68a40aef032a2e198437f4781a83bfb938dbMike Christieunreg_rport_class: 67448de68a40aef032a2e198437f4781a83bfb938dbMike Christie transport_class_unregister(&fc_rport_class); 67548de68a40aef032a2e198437f4781a83bfb938dbMike Christieunreg_vport_class: 67648de68a40aef032a2e198437f4781a83bfb938dbMike Christie transport_class_unregister(&fc_vport_class); 67748de68a40aef032a2e198437f4781a83bfb938dbMike Christieunreg_host_class: 67848de68a40aef032a2e198437f4781a83bfb938dbMike Christie transport_class_unregister(&fc_host_class); 67948de68a40aef032a2e198437f4781a83bfb938dbMike Christie return error; 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit fc_transport_exit(void) 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_transport_class); 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_rport_class); 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_host_class); 687a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_class_unregister(&fc_vport_class); 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FC Remote Port Attribute Management 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_show_function(field, format_string, sz, cast) \ 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 696ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##field (struct device *dev, \ 697ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 699ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); \ 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 70219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((i->f->get_rport_##field) && \ 70319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com !((rport->port_state == FC_PORTSTATE_BLOCKED) || \ 70442e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || \ 70519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT))) \ 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_rport_##field(rport); \ 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast rport->field); \ 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_store_function(field) \ 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 712ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_rport_##field(struct device *dev, \ 713ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 714ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; \ 717ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); \ 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 7200f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; \ 72119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) || \ 72242e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || \ 72319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT)) \ 72419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return -EBUSY; \ 7250f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); \ 7260f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (*cp && (*cp != '\n')) \ 7270f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; \ 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->set_rport_##field(rport, val); \ 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rd_attr(field, format_string, sz) \ 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, ) \ 734ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rd_attr_cast(field, format_string, sz, cast) \ 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, (cast)) \ 739ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rw_attr(field, format_string, sz) \ 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, ) \ 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_store_function(field) \ 745ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO | S_IWUSR, \ 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, \ 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_rport_##field) 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_show_function(field, format_string, sz, cast) \ 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 752ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##field (struct device *dev, \ 753ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 755ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast rport->field); \ 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_attr(field, format_string, sz) \ 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_rport_show_function(field, format_string, sz, ) \ 761ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_attr_cast(field, format_string, sz, cast) \ 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_rport_show_function(field, format_string, sz, (cast)) \ 766ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, field, S_IRUGO, \ 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_enum_attr(title, maxlen) \ 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 772ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_##title (struct device *dev, \ 773ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 775ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); \ 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; \ 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_##title##_name(rport->title); \ 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) \ 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; \ 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, maxlen, "%s\n", name); \ 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 782ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, title, S_IRUGO, \ 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##title, NULL) 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_RPORT_ATTRIBUTE_RD(field) \ 787ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_rport_##field) \ 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(field) \ 795ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_RPORT_ATTRIBUTE_RW(field) \ 802ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_rport_##field) { \ 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_rport_##field) \ 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8110f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart#define SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(field) \ 8120f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ \ 813ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_rport_attrs[count] = device_attr_rport_##field; \ 8140f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 8150f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart count++; \ 8160f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 8170f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The FC Transport Remote Port Attributes: */ 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Fixed Remote Port Attributes */ 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(maxframe_size, "%u bytes\n", 20); 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 826ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_supported_classes (struct device *dev, 827ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 829ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->supported_classes == FC_COS_UNSPECIFIED) 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unspecified\n"); 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_cos_names(rport->supported_classes, buf); 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 834ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, supported_classes, S_IRUGO, 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_supported_classes, NULL); 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Dynamic Remote Port Attributes */ 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 83919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com/* 84019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * dev_loss_tmo attribute 84119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 84243ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiestatic int fc_str_to_dev_loss(const char *buf, unsigned long *val) 84343ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie{ 84443ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie char *cp; 84543ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 84643ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie *val = simple_strtoul(buf, &cp, 0); 84743ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie if ((*cp && (*cp != '\n')) || (*val < 0)) 84843ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie return -EINVAL; 84943ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie /* 85043ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie * Check for overflow; dev_loss_tmo is u32 85143ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie */ 85243ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie if (*val > UINT_MAX) 85343ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie return -EINVAL; 85443ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 85543ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie return 0; 85643ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie} 85743ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 85843ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiestatic int fc_rport_set_dev_loss_tmo(struct fc_rport *rport, 85943ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie unsigned long val) 86019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com{ 86119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct Scsi_Host *shost = rport_to_shost(rport); 86219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct fc_internal *i = to_fc_internal(shost->transportt); 86343ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 86419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) || 86542e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_DELETED) || 86619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->port_state == FC_PORTSTATE_NOTPRESENT)) 86719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return -EBUSY; 868f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke /* 86936dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke * Check for overflow; dev_loss_tmo is u32 87036dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke */ 87136dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke if (val > UINT_MAX) 87236dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke return -EINVAL; 87336dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke 87436dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke /* 875f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke * If fast_io_fail is off we have to cap 876f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke * dev_loss_tmo at SCSI_DEVICE_BLOCK_MAX_TIMEOUT 877f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke */ 878f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke if (rport->fast_io_fail_tmo == -1 && 879f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke val > SCSI_DEVICE_BLOCK_MAX_TIMEOUT) 880f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke return -EINVAL; 881f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke 88219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com i->f->set_rport_dev_loss_tmo(rport, val); 88343ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie return 0; 88443ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie} 88543ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 88643ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiefc_rport_show_function(dev_loss_tmo, "%d\n", 20, ) 88743ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiestatic ssize_t 88843ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiestore_fc_rport_dev_loss_tmo(struct device *dev, struct device_attribute *attr, 88943ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie const char *buf, size_t count) 89043ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie{ 89143ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie struct fc_rport *rport = transport_class_to_rport(dev); 89243ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie unsigned long val; 89343ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie int rc; 89443ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 89543ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie rc = fc_str_to_dev_loss(buf, &val); 89643ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie if (rc) 89743ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie return rc; 89843ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 89943ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie rc = fc_rport_set_dev_loss_tmo(rport, val); 90043ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie if (rc) 90143ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie return rc; 90219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return count; 90319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com} 904ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, dev_loss_tmo, S_IRUGO | S_IWUSR, 90519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com show_fc_rport_dev_loss_tmo, store_fc_rport_dev_loss_tmo); 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Private Remote Port Attributes */ 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(port_id, "0x%06x\n", 20); 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 915ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_roles (struct device *dev, struct device_attribute *attr, 916ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 918ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* identify any roles that are port_id specific */ 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((rport->port_id != -1) && 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (rport->port_id & FC_WELLKNOWN_PORTID_MASK) == 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FC_WELLKNOWN_PORTID_MASK) { 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (rport->port_id & FC_WELLKNOWN_ROLE_MASK) { 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_FPORT_PORTID: 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Fabric Port\n"); 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_FABCTLR_PORTID: 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Fabric Controller\n"); 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_DIRSRVR_PORTID: 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Directory Server\n"); 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TIMESRVR_PORTID: 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Time Server\n"); 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_MGMTSRVR_PORTID: 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Management Server\n"); 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Unknown Fabric Entity\n"); 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 939a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles == FC_PORT_ROLE_UNKNOWN) 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 941a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return get_fc_port_roles_names(rport->roles, buf); 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 944ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, roles, S_IRUGO, 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_roles, NULL); 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(scsi_target_id, "%d\n", 20); 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9500f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart/* 9510f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * fast_io_fail_tmo attribute 9520f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart */ 9530f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic ssize_t 954ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_rport_fast_io_fail_tmo (struct device *dev, 955ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 9560f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 957ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 9580f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 9590f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->fast_io_fail_tmo == -1) 9600f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return snprintf(buf, 5, "off\n"); 9610f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return snprintf(buf, 20, "%d\n", rport->fast_io_fail_tmo); 9620f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 9630f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 9640f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic ssize_t 965ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_rport_fast_io_fail_tmo(struct device *dev, 966ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, 967ee959b00c335d7780136c5abda37809191fe52c3Tony Jones size_t count) 9680f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 9690f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart int val; 9700f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; 971ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_rport *rport = transport_class_to_rport(dev); 9720f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 9730f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((rport->port_state == FC_PORTSTATE_BLOCKED) || 9740f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (rport->port_state == FC_PORTSTATE_DELETED) || 9750f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart (rport->port_state == FC_PORTSTATE_NOTPRESENT)) 9760f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EBUSY; 9770f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (strncmp(buf, "off", 3) == 0) 9780f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = -1; 9790f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart else { 9800f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); 981f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke if ((*cp && (*cp != '\n')) || (val < 0)) 982f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke return -EINVAL; 983f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke /* 984f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke * Cap fast_io_fail by dev_loss_tmo or 985f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke * SCSI_DEVICE_BLOCK_MAX_TIMEOUT. 986f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke */ 987f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke if ((val >= rport->dev_loss_tmo) || 988f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke (val > SCSI_DEVICE_BLOCK_MAX_TIMEOUT)) 9890f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; 990f2818663c82b7297ff4aa38cbddb870dc02f7104Hannes Reinecke 9910f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = val; 9920f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart } 9930f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return count; 9940f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 995ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(rport, fast_io_fail_tmo, S_IRUGO | S_IWUSR, 9960f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart show_fc_rport_fast_io_fail_tmo, store_fc_rport_fast_io_fail_tmo); 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FC SCSI Target Attribute Management 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: in the target show function we recognize when the remote 1005732bee7af3102cad811fb047dee8d15966efe569Uwe Kleine-König * port is in the hierarchy and do not allow the driver to get 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * involved in sysfs functions. The driver only gets involved if 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it's the "old" style that doesn't use rports. 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_show_function(field, format_string, sz, cast) \ 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1011ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_starget_##field (struct device *dev, \ 1012ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1014ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct scsi_target *starget = transport_class_to_starget(dev); \ 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); \ 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = starget_to_rport(starget); \ 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport) \ 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_##field(starget) = rport->field; \ 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (i->f->get_starget_##field) \ 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_starget_##field(starget); \ 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, \ 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cast fc_starget_##field(starget)); \ 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_rd_attr(field, format_string, sz) \ 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_show_function(field, format_string, sz, ) \ 1028ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(starget, field, S_IRUGO, \ 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_starget_##field, NULL) 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_rd_attr_cast(field, format_string, sz, cast) \ 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_show_function(field, format_string, sz, (cast)) \ 1033ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(starget, field, S_IRUGO, \ 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_starget_##field, NULL) 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_STARGET_ATTRIBUTE_RD(field) \ 1037ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_starget_attrs[count] = device_attr_starget_##field; \ 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].attr.mode = S_IRUGO; \ 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].store = NULL; \ 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = &i->private_starget_attrs[count]; \ 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_starget_##field) \ 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_STARGET_ATTRIBUTE_RW(field) \ 1045ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_starget_attrs[count] = device_attr_starget_##field; \ 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_starget_##field) { \ 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].attr.mode = S_IRUGO; \ 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].store = NULL; \ 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = &i->private_starget_attrs[count]; \ 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_starget_##field) \ 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The FC Transport SCSI Target Attributes: */ 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr(port_id, "0x%06x\n", 20); 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1061a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * FC Virtual Port Attribute Management 1062a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1063a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1064a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_show_function(field, format_string, sz, cast) \ 1065a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1066ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##field (struct device *dev, \ 1067ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 1068a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1069ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1070a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); \ 1071a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1072a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((i->f->get_vport_##field) && \ 1073a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart !(vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING))) \ 1074a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->get_vport_##field(vport); \ 1075a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, sz, format_string, cast vport->field); \ 1076a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1077a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1078a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_store_function(field) \ 1079a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1080ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1081ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1082ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1083a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1084a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int val; \ 1085ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1086a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); \ 1087a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1088a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *cp; \ 1089a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ 1090a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; \ 1091a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart val = simple_strtoul(buf, &cp, 0); \ 1092a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*cp && (*cp != '\n')) \ 1093a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1094a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->set_vport_##field(vport, val); \ 1095a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1096a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1097a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1098a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_store_str_function(field, slen) \ 1099a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1100ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1101ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1102ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1103a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1104ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1105a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); \ 1106a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1107a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; \ 1108a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart \ 1109a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ \ 1110a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') \ 1111a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; \ 1112a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (cnt > ((slen) - 1)) \ 1113a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1114a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memcpy(vport->field, buf, cnt); \ 1115a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->f->set_vport_##field(vport); \ 1116a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1117a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1118a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1119a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rd_attr(field, format_string, sz) \ 1120a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, ) \ 1121ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1122a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1123a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1124a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rd_attr_cast(field, format_string, sz, cast) \ 1125a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, (cast)) \ 1126ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1127a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1128a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1129a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_vport_rw_attr(field, format_string, sz) \ 1130a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_show_function(field, format_string, sz, ) \ 1131a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_vport_store_function(field) \ 1132ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ 1133a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, \ 1134a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_vport_##field) 1135a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1136a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_show_function(field, format_string, sz, cast) \ 1137a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1138ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##field (struct device *dev, \ 1139ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 1140a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1141ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1142a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, sz, format_string, cast vport->field); \ 1143a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1144a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1145a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_store_u32_function(field) \ 1146a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1147ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_##field(struct device *dev, \ 1148ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1149ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1150a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1151a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u32 val; \ 1152ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1153a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart char *cp; \ 1154a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) \ 1155a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; \ 1156a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart val = simple_strtoul(buf, &cp, 0); \ 1157a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*cp && (*cp != '\n')) \ 1158a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1159a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->field = val; \ 1160a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; \ 1161a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1162a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1163a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1164a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_attr(field, format_string, sz) \ 1165a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, ) \ 1166ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1167a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1168a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1169a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_attr_cast(field, format_string, sz, cast) \ 1170a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, (cast)) \ 1171ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO, \ 1172a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, NULL) 1173a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1174a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rw_u32_attr(field, format_string, sz) \ 1175a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_show_function(field, format_string, sz, ) \ 1176a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_private_vport_store_u32_function(field) \ 1177ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, field, S_IRUGO | S_IWUSR, \ 1178a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##field, \ 1179a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_vport_##field) 1180a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1181a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1182a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define fc_private_vport_rd_enum_attr(title, maxlen) \ 1183a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t \ 1184ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_##title (struct device *dev, \ 1185ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1186ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) \ 1187a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1188ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); \ 1189a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart const char *name; \ 1190a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart name = get_fc_##title##_name(vport->title); \ 1191a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!name) \ 1192a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; \ 1193a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, maxlen, "%s\n", name); \ 1194a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} \ 1195ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, title, S_IRUGO, \ 1196a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_##title, NULL) 1197a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1198a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1199a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_RD(field) \ 1200ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1201a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1202a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1203a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1204a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->get_##field) \ 1205a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1206a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: checks function not show bit */ 1207a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1208a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(field) \ 1209ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1210a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1211a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1212a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1213a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1214a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1215a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_WR(field) \ 1216ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1217a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1218a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->field) \ 1219a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1220a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: checks function */ 1221a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1222a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_VPORT_ATTRIBUTE_RW(field) \ 1223ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1224a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!i->f->set_vport_##field) { \ 1225a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].attr.mode = S_IRUGO; \ 1226a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_vport_attrs[count].store = NULL; \ 1227a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } \ 1228a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1229a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1230a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* NOTE: Above MACRO differs: does not check show bit */ 1231a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1232a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_PRIVATE_VPORT_ATTRIBUTE_RW(field) \ 1233a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ \ 1234ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_vport_attrs[count] = device_attr_vport_##field; \ 1235a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = &i->private_vport_attrs[count]; \ 1236a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++; \ 1237a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1238a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1239a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1240a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* The FC Transport Virtual Port Attributes: */ 1241a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1242a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Fixed Virtual Port Attributes */ 1243a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1244a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Dynamic Virtual Port Attributes */ 1245a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1246a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Private Virtual Port Attributes */ 1247a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1248a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_state, FC_VPORTSTATE_MAX_NAMELEN); 1249a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_last_state, FC_VPORTSTATE_MAX_NAMELEN); 1250a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 1251a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 1252a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1253a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1254ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_vport_roles (struct device *dev, struct device_attribute *attr, 1255ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) 1256a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1257ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 1258a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1259a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->roles == FC_PORT_ROLE_UNKNOWN) 1260a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return snprintf(buf, 20, "unknown\n"); 1261a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return get_fc_port_roles_names(vport->roles, buf); 1262a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1263ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, roles, S_IRUGO, show_fc_vport_roles, NULL); 1264a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1265a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_rd_enum_attr(vport_type, FC_PORTTYPE_MAX_NAMELEN); 1266a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1267a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_vport_show_function(symbolic_name, "%s\n", 1268a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart FC_VPORT_SYMBOLIC_NAMELEN + 1, ) 1269a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_vport_store_str_function(symbolic_name, FC_VPORT_SYMBOLIC_NAMELEN) 1270ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, symbolic_name, S_IRUGO | S_IWUSR, 1271a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart show_fc_vport_symbolic_name, store_fc_vport_symbolic_name); 1272a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1273a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1274ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_delete(struct device *dev, struct device_attribute *attr, 1275ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1276a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1277ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 12789ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart struct Scsi_Host *shost = vport_to_shost(vport); 12790d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen unsigned long flags; 12800d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen 12810d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen spin_lock_irqsave(shost->host_lock, flags); 12820d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) { 12830d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen spin_unlock_irqrestore(shost->host_lock, flags); 12840d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen return -EBUSY; 12850d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen } 12860d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen vport->flags |= FC_VPORT_DELETING; 12870d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen spin_unlock_irqrestore(shost->host_lock, flags); 1288a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 12899ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart fc_queue_work(shost, &vport->vport_delete_work); 1290a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return count; 1291a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1292ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, vport_delete, S_IWUSR, 1293a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, store_fc_vport_delete); 1294a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1295a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1296a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1297a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Enable/Disable vport 1298a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Write "1" to disable, write "0" to enable 1299a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1300a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1301ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_vport_disable(struct device *dev, struct device_attribute *attr, 1302ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, 1303a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size_t count) 1304a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1305ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct fc_vport *vport = transport_class_to_vport(dev); 1306a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); 1307a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 1308a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 1309a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1310a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) 1311a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EBUSY; 1312a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1313a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (*buf == '0') { 1314a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->vport_state != FC_VPORT_DISABLED) 1315a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EALREADY; 1316a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else if (*buf == '1') { 1317a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (vport->vport_state == FC_VPORT_DISABLED) 1318a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EALREADY; 1319a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else 1320a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1321a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1322a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = i->f->vport_disable(vport, ((*buf == '0') ? false : true)); 1323a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1324a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1325ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(vport, vport_disable, S_IWUSR, 1326a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart NULL, store_fc_vport_disable); 1327a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1328a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1329a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Attribute Management 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_show_function(field, format_string, sz, cast) \ 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1335ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##field (struct device *dev, \ 1336ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1338ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_##field) \ 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_##field(shost); \ 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_store_function(field) \ 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1347ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_##field(struct device *dev, \ 1348ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1349ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; \ 1352ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 13540f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart char *cp; \ 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 13560f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart val = simple_strtoul(buf, &cp, 0); \ 13570f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (*cp && (*cp != '\n')) \ 13580f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return -EINVAL; \ 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->set_host_##field(shost, val); \ 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1363b8d08210126a7b769b857720a59721a453a57a1eJames Smart#define fc_host_store_str_function(field, slen) \ 1364b8d08210126a7b769b857720a59721a453a57a1eJames Smartstatic ssize_t \ 1365ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_##field(struct device *dev, \ 1366ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1367ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) \ 1368b8d08210126a7b769b857720a59721a453a57a1eJames Smart{ \ 1369ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 1370b8d08210126a7b769b857720a59721a453a57a1eJames Smart struct fc_internal *i = to_fc_internal(shost->transportt); \ 1371b8d08210126a7b769b857720a59721a453a57a1eJames Smart unsigned int cnt=count; \ 1372b8d08210126a7b769b857720a59721a453a57a1eJames Smart \ 1373b8d08210126a7b769b857720a59721a453a57a1eJames Smart /* count may include a LF at end of string */ \ 1374b8d08210126a7b769b857720a59721a453a57a1eJames Smart if (buf[cnt-1] == '\n') \ 1375b8d08210126a7b769b857720a59721a453a57a1eJames Smart cnt--; \ 1376b8d08210126a7b769b857720a59721a453a57a1eJames Smart if (cnt > ((slen) - 1)) \ 1377b8d08210126a7b769b857720a59721a453a57a1eJames Smart return -EINVAL; \ 1378b8d08210126a7b769b857720a59721a453a57a1eJames Smart memcpy(fc_host_##field(shost), buf, cnt); \ 1379b8d08210126a7b769b857720a59721a453a57a1eJames Smart i->f->set_host_##field(shost); \ 1380b8d08210126a7b769b857720a59721a453a57a1eJames Smart return count; \ 1381b8d08210126a7b769b857720a59721a453a57a1eJames Smart} 1382b8d08210126a7b769b857720a59721a453a57a1eJames Smart 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_attr(field, format_string, sz) \ 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, ) \ 1385ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_attr_cast(field, format_string, sz, cast) \ 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, (cast)) \ 1390ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rw_attr(field, format_string, sz) \ 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, ) \ 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_store_function(field) \ 1396ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO | S_IWUSR, \ 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, \ 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_host_##field) 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_enum_attr(title, maxlen) \ 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1402ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##title (struct device *dev, \ 1403ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1405ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; \ 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_##title) \ 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_##title(shost); \ 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_##title##_name(fc_host_##title(shost)); \ 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) \ 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; \ 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, maxlen, "%s\n", name); \ 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 1415ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, title, S_IRUGO, show_fc_host_##title, NULL) 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_HOST_ATTRIBUTE_RD(field) \ 1418ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_host_##field) \ 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1425a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart#define SETUP_HOST_ATTRIBUTE_RD_NS(field) \ 1426ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 1427a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_host_attrs[count].attr.mode = S_IRUGO; \ 1428a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->private_host_attrs[count].store = NULL; \ 1429a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->host_attrs[count] = &i->private_host_attrs[count]; \ 1430a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count++ 1431a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_HOST_ATTRIBUTE_RW(field) \ 1433ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_host_##field) { \ 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_host_##field) \ 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_show_function(field, format_string, sz, cast) \ 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1445ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_##field (struct device *dev, \ 1446ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) \ 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1448ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); \ 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_rd_attr(field, format_string, sz) \ 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_host_show_function(field, format_string, sz, ) \ 1454ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_rd_attr_cast(field, format_string, sz, cast) \ 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_host_show_function(field, format_string, sz, (cast)) \ 1459ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, field, S_IRUGO, \ 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_HOST_ATTRIBUTE_RD(field) \ 1463ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_HOST_ATTRIBUTE_RW(field) \ 147091ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez{ \ 1471ee959b00c335d7780136c5abda37809191fe52c3Tony Jones i->private_host_attrs[count] = device_attr_host_##field; \ 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 147391ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez count++; \ 147491ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez} 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Fixed Host Attributes */ 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1480ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_classes (struct device *dev, 1481ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1483ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_supported_classes(shost) == FC_COS_UNSPECIFIED) 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unspecified\n"); 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_cos_names(fc_host_supported_classes(shost), buf); 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1490ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_classes, S_IRUGO, 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_classes, NULL); 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1494ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_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 return (ssize_t)show_fc_fc4s(buf, fc_host_supported_fc4s(shost)); 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1500ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_fc4s, S_IRUGO, 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_fc4s, NULL); 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1504ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_supported_speeds (struct device *dev, 1505ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1507ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_supported_speeds(shost) == FC_PORTSPEED_UNKNOWN) 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_port_speed_names(fc_host_supported_speeds(shost), buf); 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1514ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, supported_speeds, S_IRUGO, 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_speeds, NULL); 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 15206b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmannfc_private_host_rd_attr_cast(permanent_port_name, "0x%llx\n", 20, 15216b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmann unsigned long long); 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr(maxframe_size, "%u bytes\n", 20); 1523a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_private_host_rd_attr(max_npiv_vports, "%u\n", 20); 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr(serial_number, "%s\n", (FC_SERIAL_NUMBER_SIZE +1)); 1525bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikhfc_private_host_rd_attr(manufacturer, "%s\n", FC_SERIAL_NUMBER_SIZE + 1); 1526bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikhfc_private_host_rd_attr(model, "%s\n", FC_SYMBOLIC_NAME_SIZE + 1); 1527bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikhfc_private_host_rd_attr(model_description, "%s\n", FC_SYMBOLIC_NAME_SIZE + 1); 1528bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikhfc_private_host_rd_attr(hardware_version, "%s\n", FC_VERSION_STRING_SIZE + 1); 1529bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikhfc_private_host_rd_attr(driver_version, "%s\n", FC_VERSION_STRING_SIZE + 1); 1530bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikhfc_private_host_rd_attr(firmware_version, "%s\n", FC_VERSION_STRING_SIZE + 1); 1531bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikhfc_private_host_rd_attr(optionrom_version, "%s\n", FC_VERSION_STRING_SIZE + 1); 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Dynamic Host Attributes */ 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1537ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_active_fc4s (struct device *dev, 1538ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1540ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_active_fc4s) 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_active_fc4s(shost); 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ssize_t)show_fc_fc4s(buf, fc_host_active_fc4s(shost)); 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1548ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, active_fc4s, S_IRUGO, 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_active_fc4s, NULL); 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1552ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_host_speed (struct device *dev, 1553ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1555ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_speed) 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_speed(shost); 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_speed(shost) == FC_PORTSPEED_UNKNOWN) 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_port_speed_names(fc_host_speed(shost), buf); 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1566ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, speed, S_IRUGO, 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_speed, NULL); 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_attr(port_id, "0x%06x\n", 20); 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_enum_attr(port_type, FC_PORTTYPE_MAX_NAMELEN); 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_attr_cast(fabric_name, "0x%llx\n", 20, unsigned long long); 1574016131b8fffa1085b4ad165ab228116fdc278ebeJames Smartfc_host_rd_attr(symbolic_name, "%s\n", FC_SYMBOLIC_NAME_SIZE + 1); 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1576b8d08210126a7b769b857720a59721a453a57a1eJames Smartfc_private_host_show_function(system_hostname, "%s\n", 1577b8d08210126a7b769b857720a59721a453a57a1eJames Smart FC_SYMBOLIC_NAME_SIZE + 1, ) 1578b8d08210126a7b769b857720a59721a453a57a1eJames Smartfc_host_store_str_function(system_hostname, FC_SYMBOLIC_NAME_SIZE) 1579ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, system_hostname, S_IRUGO | S_IWUSR, 1580b8d08210126a7b769b857720a59721a453a57a1eJames Smart show_fc_host_system_hostname, store_fc_host_system_hostname); 1581b8d08210126a7b769b857720a59721a453a57a1eJames Smart 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Private Host Attributes */ 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1586ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesshow_fc_private_host_tgtid_bind_type(struct device *dev, 1587ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, char *buf) 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1589ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_tgtid_bind_type_name(fc_host_tgtid_bind_type(shost)); 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, FC_BINDTYPE_MAX_NAMELEN, "%s\n", name); 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1598d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com#define get_list_head_entry(pos, head, member) \ 1599d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com pos = list_entry((head)->next, typeof(*pos), member) 1600d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1602ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_private_host_tgtid_bind_type(struct device *dev, 1603ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, size_t count) 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1605ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1606d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com struct fc_rport *rport; 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_tgtid_binding_type val; 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (get_fc_tgtid_bind_type_match(buf, &val)) 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* if changing bind type, purge all unused consistent bindings */ 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != fc_host_tgtid_bind_type(shost)) { 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 1616d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com while (!list_empty(&fc_host_rport_bindings(shost))) { 1617d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com get_list_head_entry(rport, 1618d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com &fc_host_rport_bindings(shost), peers); 1619aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 1620aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 1621aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 1622d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com } 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_tgtid_bind_type(shost) = val; 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1630ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, tgtid_bind_type, S_IRUGO | S_IWUSR, 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_private_host_tgtid_bind_type, 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_private_host_tgtid_bind_type); 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 163491ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquezstatic ssize_t 1635ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_private_host_issue_lip(struct device *dev, 1636ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, const char *buf, size_t count) 163791ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez{ 1638ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 163991ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez struct fc_internal *i = to_fc_internal(shost->transportt); 164091ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez int ret; 164191ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 164291ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez /* ignore any data value written to the attribute */ 164391ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez if (i->f->issue_fc_host_lip) { 164491ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez ret = i->f->issue_fc_host_lip(shost); 164591ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez return ret ? ret: count; 164691ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez } 164791ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 164891ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez return -ENOENT; 164991ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez} 165091ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 1651ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, issue_lip, S_IWUSR, NULL, 165291ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez store_fc_private_host_issue_lip); 165391ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez 165443ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiestatic ssize_t 165543ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiestore_fc_private_host_dev_loss_tmo(struct device *dev, 165643ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie struct device_attribute *attr, 165743ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie const char *buf, size_t count) 165843ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie{ 165943ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie struct Scsi_Host *shost = transport_class_to_shost(dev); 166043ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 166143ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie struct fc_rport *rport; 166243ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie unsigned long val, flags; 166343ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie int rc; 166443ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 166543ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie rc = fc_str_to_dev_loss(buf, &val); 166643ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie if (rc) 166743ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie return rc; 166843ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 166943ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie fc_host_dev_loss_tmo(shost) = val; 167043ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie spin_lock_irqsave(shost->host_lock, flags); 167143ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie list_for_each_entry(rport, &fc_host->rports, peers) 167243ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie fc_rport_set_dev_loss_tmo(rport, val); 167343ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie spin_unlock_irqrestore(shost->host_lock, flags); 167443ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie return count; 167543ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie} 1676a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 167743ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiefc_private_host_show_function(dev_loss_tmo, "%d\n", 20, ); 167843ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiestatic FC_DEVICE_ATTR(host, dev_loss_tmo, S_IRUGO | S_IWUSR, 167943ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie show_fc_host_dev_loss_tmo, 168043ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie store_fc_private_host_dev_loss_tmo); 168143ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie 168243ca910a9c90566308f39f51ac03a55f94a5f83cMike Christiefc_private_host_rd_attr(npiv_vports_inuse, "%u\n", 20); 1683a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Statistics Management 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Show a given an attribute in the statistics group */ 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1690ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesfc_stat_show(const struct device *dev, char *buf, unsigned long offset) 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1692ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_host_statistics *stats; 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssize_t ret = -ENOENT; 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offset > sizeof(struct fc_host_statistics) || 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset % sizeof(u64) != 0) 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds WARN_ON(1); 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_fc_host_stats) { 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stats = (i->f->get_fc_host_stats)(shost); 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (stats) 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = snprintf(buf, 20, "0x%llx\n", 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long long)*(u64 *)(((u8 *) stats) + offset)); 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* generate a read-only statistics attribute */ 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_statistic(name) \ 1713ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic ssize_t show_fcstat_##name(struct device *cd, \ 1714ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct device_attribute *attr, \ 1715ee959b00c335d7780136c5abda37809191fe52c3Tony Jones char *buf) \ 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fc_stat_show(cd, buf, \ 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offsetof(struct fc_host_statistics, name)); \ 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 1720ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, name, S_IRUGO, show_fcstat_##name, NULL) 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(seconds_since_last_reset); 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(tx_frames); 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(tx_words); 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(rx_frames); 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(rx_words); 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(lip_count); 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(nos_count); 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(error_frames); 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(dumped_frames); 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(link_failure_count); 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(loss_of_sync_count); 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(loss_of_signal_count); 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(prim_seq_protocol_err_count); 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(invalid_tx_word_count); 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(invalid_crc_count); 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_input_requests); 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_output_requests); 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_control_requests); 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_input_megabytes); 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_output_megabytes); 1742e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Devfc_host_statistic(fcp_packet_alloc_failures); 1743e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Devfc_host_statistic(fcp_packet_aborts); 1744e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Devfc_host_statistic(fcp_frame_alloc_failures); 1745e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Devfc_host_statistic(fc_no_free_exch); 1746e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Devfc_host_statistic(fc_no_free_exch_xid); 1747e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Devfc_host_statistic(fc_xid_not_found); 1748e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Devfc_host_statistic(fc_xid_busy); 1749e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Devfc_host_statistic(fc_seq_not_found); 1750e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Devfc_host_statistic(fc_non_bls_resp); 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 1753ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesfc_reset_statistics(struct device *dev, struct device_attribute *attr, 1754ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1756ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* ignore any data value written to the attribute */ 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->reset_fc_host_stats) { 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->reset_fc_host_stats(shost); 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOENT; 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1767ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, reset_statistics, S_IWUSR, NULL, 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_reset_statistics); 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct attribute *fc_statistics_attrs[] = { 1771ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_seconds_since_last_reset.attr, 1772ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_tx_frames.attr, 1773ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_tx_words.attr, 1774ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_rx_frames.attr, 1775ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_rx_words.attr, 1776ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_lip_count.attr, 1777ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_nos_count.attr, 1778ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_error_frames.attr, 1779ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_dumped_frames.attr, 1780ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_link_failure_count.attr, 1781ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_loss_of_sync_count.attr, 1782ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_loss_of_signal_count.attr, 1783ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_prim_seq_protocol_err_count.attr, 1784ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_invalid_tx_word_count.attr, 1785ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_invalid_crc_count.attr, 1786ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_input_requests.attr, 1787ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_output_requests.attr, 1788ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_control_requests.attr, 1789ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_input_megabytes.attr, 1790ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_fcp_output_megabytes.attr, 1791e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Dev &device_attr_host_fcp_packet_alloc_failures.attr, 1792e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Dev &device_attr_host_fcp_packet_aborts.attr, 1793e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Dev &device_attr_host_fcp_frame_alloc_failures.attr, 1794e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Dev &device_attr_host_fc_no_free_exch.attr, 1795e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Dev &device_attr_host_fc_no_free_exch_xid.attr, 1796e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Dev &device_attr_host_fc_xid_not_found.attr, 1797e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Dev &device_attr_host_fc_xid_busy.attr, 1798e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Dev &device_attr_host_fc_seq_not_found.attr, 1799e58abb0ca423fc7adcf70bee018723b87c9e38c2Vasu Dev &device_attr_host_fc_non_bls_resp.attr, 1800ee959b00c335d7780136c5abda37809191fe52c3Tony Jones &device_attr_host_reset_statistics.attr, 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct attribute_group fc_statistics_group = { 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "statistics", 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .attrs = fc_statistics_attrs, 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1809a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1810a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* Host Vport Attributes */ 1811a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1812a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int 1813a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_parse_wwn(const char *ns, u64 *nm) 1814a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1815a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int i, j; 1816a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u8 wwn[8]; 1817a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1818a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memset(wwn, 0, sizeof(wwn)); 1819a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1820a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* Validate and store the new name */ 1821a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart for (i=0, j=0; i < 16; i++) { 1822ecc3099002c1cc87e9e4b3dc5fdf7821828f6733Andy Shevchenko int value; 1823ecc3099002c1cc87e9e4b3dc5fdf7821828f6733Andy Shevchenko 1824ecc3099002c1cc87e9e4b3dc5fdf7821828f6733Andy Shevchenko value = hex_to_bin(*ns++); 1825ecc3099002c1cc87e9e4b3dc5fdf7821828f6733Andy Shevchenko if (value >= 0) 1826ecc3099002c1cc87e9e4b3dc5fdf7821828f6733Andy Shevchenko j = (j << 4) | value; 1827a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else 1828a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1829a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i % 2) { 1830a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart wwn[i/2] = j & 0xff; 1831a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart j = 0; 1832a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1833a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1834a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1835a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *nm = wwn_to_u64(wwn); 1836a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1837a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 1838a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1839a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1840a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1841a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1842a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * "Short-cut" sysfs variable to create a new vport on a FC Host. 1843a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Input is a string of the form "<WWPN>:<WWNN>". Other attributes 1844a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * will default to a NPIV-based FCP_Initiator; The WWNs are specified 1845a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * as hex characters, and may *not* contain any prefixes (e.g. 0x, x, etc) 1846a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1847a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1848ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_vport_create(struct device *dev, struct device_attribute *attr, 1849ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1850a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1851ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1852a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport_identifiers vid; 1853a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 1854a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; 1855a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 1856a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1857a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart memset(&vid, 0, sizeof(vid)); 1858a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1859a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ 1860a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') 1861a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; 1862a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1863a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* validate we have enough characters for WWPN */ 1864a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((cnt != (16+1+16)) || (buf[16] != ':')) 1865a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1866a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1867a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[0], &vid.port_name); 1868a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1869a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1870a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1871a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[17], &vid.node_name); 1872a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1873a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1874a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1875a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.roles = FC_PORT_ROLE_FCP_INITIATOR; 1876a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.vport_type = FC_PORTTYPE_NPIV; 1877a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* vid.symbolic_name is already zero/NULL's */ 1878a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vid.disable = false; /* always enabled */ 1879a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1880a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* we only allow support on Channel 0 !!! */ 1881a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez stat = fc_vport_setup(shost, 0, &shost->shost_gendev, &vid, &vport); 1882a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1883a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1884ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, vport_create, S_IWUSR, NULL, 1885a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_host_vport_create); 1886a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1887a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1888a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/* 1889a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * "Short-cut" sysfs variable to delete a vport on a FC Host. 1890a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Vport is identified by a string containing "<WWPN>:<WWNN>". 1891a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * The WWNs are specified as hex characters, and may *not* contain 1892a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * any prefixes (e.g. 0x, x, etc) 1893a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 1894a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic ssize_t 1895ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstore_fc_host_vport_delete(struct device *dev, struct device_attribute *attr, 1896ee959b00c335d7780136c5abda37809191fe52c3Tony Jones const char *buf, size_t count) 1897a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 1898ee959b00c335d7780136c5abda37809191fe52c3Tony Jones struct Scsi_Host *shost = transport_class_to_shost(dev); 1899a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 1900a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 1901a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart u64 wwpn, wwnn; 1902a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 1903a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned int cnt=count; 1904a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat, match; 1905a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1906a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* count may include a LF at end of string */ 1907a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (buf[cnt-1] == '\n') 1908a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart cnt--; 1909a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1910a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* validate we have enough characters for WWPN */ 1911a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((cnt != (16+1+16)) || (buf[16] != ':')) 1912a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -EINVAL; 1913a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1914a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[0], &wwpn); 1915a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1916a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1917a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1918a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_parse_wwn(&buf[17], &wwnn); 1919a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 1920a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 1921a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1922a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 1923a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart match = 0; 1924a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* we only allow support on Channel 0 !!! */ 1925a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_for_each_entry(vport, &fc_host->vports, peers) { 1926a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ((vport->channel == 0) && 1927a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart (vport->port_name == wwpn) && (vport->node_name == wwnn)) { 19280d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) 19290d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen break; 19300d9dc7c8b9b7fa0f53647423b41056ee1beed735Gal Rosen vport->flags |= FC_VPORT_DELETING; 1931a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart match = 1; 1932a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart break; 1933a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1934a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 1935a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 1936a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1937a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!match) 1938a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENODEV; 1939a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1940a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = fc_vport_terminate(vport); 1941a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat ? stat : count; 1942a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 1943ee959b00c335d7780136c5abda37809191fe52c3Tony Jonesstatic FC_DEVICE_ATTR(host, vport_delete, S_IWUSR, NULL, 1944a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart store_fc_host_vport_delete); 1945a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 1946a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 19471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_host_match(struct attribute_container *cont, 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 19521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_host_device(dev)) 19541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev); 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t.host_attrs.ac == cont; 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_target_match(struct attribute_container *cont, 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_target_device(dev)) 19731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev->parent); 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 19811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t.target_attrs.ac == cont; 19831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fc_rport_dev_release(struct device *dev) 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = dev_to_rport(dev); 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(dev->parent); 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(rport); 19901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint scsi_is_fc_rport(const struct device *dev) 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return dev->release == fc_rport_dev_release; 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(scsi_is_fc_rport); 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_rport_match(struct attribute_container *cont, 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_fc_rport(dev)) 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev->parent); 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 20101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 20131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->rport_attr_cont.ac == cont; 20151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20175c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 2018a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic void fc_vport_dev_release(struct device *dev) 2019a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 2020a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport = dev_to_vport(dev); 2021a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev->parent); /* release kobj parent */ 2022a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 2023a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 2024a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2025a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartint scsi_is_fc_vport(const struct device *dev) 2026a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 2027a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return dev->release == fc_vport_dev_release; 2028a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 2029a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James SmartEXPORT_SYMBOL(scsi_is_fc_vport); 2030a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2031a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int fc_vport_match(struct attribute_container *cont, 2032a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev) 2033a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 2034a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 2035a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost; 2036a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i; 2037a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2038a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!scsi_is_fc_vport(dev)) 2039a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 2040a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport = dev_to_vport(dev); 2041a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2042a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart shost = vport_to_shost(vport); 2043a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!shost->transportt || shost->transportt->host_attrs.ac.class 2044a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart != &fc_host_class.class) 2045a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 2046a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2047a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i = to_fc_internal(shost->transportt); 2048a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return &i->vport_attr_cont.ac == cont; 2049a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 2050a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2051a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2052c829c394165f981d49f05a9be228404d7a9398d4James Smart/** 2053c829c394165f981d49f05a9be228404d7a9398d4James Smart * fc_timed_out - FC Transport I/O timeout intercept handler 2054c829c394165f981d49f05a9be228404d7a9398d4James Smart * @scmd: The SCSI command which timed out 2055c829c394165f981d49f05a9be228404d7a9398d4James Smart * 2056c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine protects against error handlers getting invoked while a 2057c829c394165f981d49f05a9be228404d7a9398d4James Smart * rport is in a blocked state, typically due to a temporarily loss of 2058c829c394165f981d49f05a9be228404d7a9398d4James Smart * connectivity. If the error handlers are allowed to proceed, requests 2059c829c394165f981d49f05a9be228404d7a9398d4James Smart * to abort i/o, reset the target, etc will likely fail as there is no way 2060c829c394165f981d49f05a9be228404d7a9398d4James Smart * to communicate with the device to perform the requested function. These 2061c829c394165f981d49f05a9be228404d7a9398d4James Smart * failures may result in the midlayer taking the device offline, requiring 2062c829c394165f981d49f05a9be228404d7a9398d4James Smart * manual intervention to restore operation. 2063c829c394165f981d49f05a9be228404d7a9398d4James Smart * 2064c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine, called whenever an i/o times out, validates the state of 2065c829c394165f981d49f05a9be228404d7a9398d4James Smart * the underlying rport. If the rport is blocked, it returns 2066c829c394165f981d49f05a9be228404d7a9398d4James Smart * EH_RESET_TIMER, which will continue to reschedule the timeout. 2067c829c394165f981d49f05a9be228404d7a9398d4James Smart * Eventually, either the device will return, or devloss_tmo will fire, 2068c829c394165f981d49f05a9be228404d7a9398d4James Smart * and when the timeout then fires, it will be handled normally. 2069c829c394165f981d49f05a9be228404d7a9398d4James Smart * If the rport is not blocked, normal error handling continues. 2070c829c394165f981d49f05a9be228404d7a9398d4James Smart * 2071c829c394165f981d49f05a9be228404d7a9398d4James Smart * Notes: 2072c829c394165f981d49f05a9be228404d7a9398d4James Smart * This routine assumes no locks are held on entry. 2073eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2074242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboestatic enum blk_eh_timer_return 2075c829c394165f981d49f05a9be228404d7a9398d4James Smartfc_timed_out(struct scsi_cmnd *scmd) 2076c829c394165f981d49f05a9be228404d7a9398d4James Smart{ 2077c829c394165f981d49f05a9be228404d7a9398d4James Smart struct fc_rport *rport = starget_to_rport(scsi_target(scmd->device)); 2078c829c394165f981d49f05a9be228404d7a9398d4James Smart 2079c829c394165f981d49f05a9be228404d7a9398d4James Smart if (rport->port_state == FC_PORTSTATE_BLOCKED) 2080242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboe return BLK_EH_RESET_TIMER; 2081c829c394165f981d49f05a9be228404d7a9398d4James Smart 2082242f9dcb8ba6f68fcd217a119a7648a4f69290e9Jens Axboe return BLK_EH_NOT_HANDLED; 2083c829c394165f981d49f05a9be228404d7a9398d4James Smart} 2084c829c394165f981d49f05a9be228404d7a9398d4James Smart 20855c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com/* 2086bda232531f0c117921690ee3c060953c8f12e5a1James Smart * Called by fc_user_scan to locate an rport on the shost that 2087bda232531f0c117921690ee3c060953c8f12e5a1James Smart * matches the channel and target id, and invoke scsi_scan_target() 2088bda232531f0c117921690ee3c060953c8f12e5a1James Smart * on the rport. 20895c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com */ 2090bda232531f0c117921690ee3c060953c8f12e5a1James Smartstatic void 2091bda232531f0c117921690ee3c060953c8f12e5a1James Smartfc_user_scan_tgt(struct Scsi_Host *shost, uint channel, uint id, uint lun) 20925c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com{ 20935c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com struct fc_rport *rport; 2094bda232531f0c117921690ee3c060953c8f12e5a1James Smart unsigned long flags; 2095bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2096bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_lock_irqsave(shost->host_lock, flags); 20975c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 2098e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig list_for_each_entry(rport, &fc_host_rports(shost), peers) { 2099e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig if (rport->scsi_target_id == -1) 2100e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig continue; 21015c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 21020d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke if (rport->port_state != FC_PORTSTATE_ONLINE) 21030d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke continue; 21040d2fcd9f9858a34f7056b3b1cb60ce0f883d06b6Hannes Reinecke 2105bda232531f0c117921690ee3c060953c8f12e5a1James Smart if ((channel == rport->channel) && 2106bda232531f0c117921690ee3c060953c8f12e5a1James Smart (id == rport->scsi_target_id)) { 2107bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_unlock_irqrestore(shost->host_lock, flags); 2108bda232531f0c117921690ee3c060953c8f12e5a1James Smart scsi_scan_target(&rport->dev, channel, id, lun, 1); 2109bda232531f0c117921690ee3c060953c8f12e5a1James Smart return; 2110e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig } 2111e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig } 2112e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig 2113bda232531f0c117921690ee3c060953c8f12e5a1James Smart spin_unlock_irqrestore(shost->host_lock, flags); 2114bda232531f0c117921690ee3c060953c8f12e5a1James Smart} 2115bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2116bda232531f0c117921690ee3c060953c8f12e5a1James Smart/* 2117bda232531f0c117921690ee3c060953c8f12e5a1James Smart * Called via sysfs scan routines. Necessary, as the FC transport 2118bda232531f0c117921690ee3c060953c8f12e5a1James Smart * wants to place all target objects below the rport object. So this 2119bda232531f0c117921690ee3c060953c8f12e5a1James Smart * routine must invoke the scsi_scan_target() routine with the rport 2120bda232531f0c117921690ee3c060953c8f12e5a1James Smart * object as the parent. 2121bda232531f0c117921690ee3c060953c8f12e5a1James Smart */ 2122bda232531f0c117921690ee3c060953c8f12e5a1James Smartstatic int 2123bda232531f0c117921690ee3c060953c8f12e5a1James Smartfc_user_scan(struct Scsi_Host *shost, uint channel, uint id, uint lun) 2124bda232531f0c117921690ee3c060953c8f12e5a1James Smart{ 2125bda232531f0c117921690ee3c060953c8f12e5a1James Smart uint chlo, chhi; 2126bda232531f0c117921690ee3c060953c8f12e5a1James Smart uint tgtlo, tgthi; 2127bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2128bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (((channel != SCAN_WILD_CARD) && (channel > shost->max_channel)) || 2129bda232531f0c117921690ee3c060953c8f12e5a1James Smart ((id != SCAN_WILD_CARD) && (id >= shost->max_id)) || 2130bda232531f0c117921690ee3c060953c8f12e5a1James Smart ((lun != SCAN_WILD_CARD) && (lun > shost->max_lun))) 2131bda232531f0c117921690ee3c060953c8f12e5a1James Smart return -EINVAL; 2132bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2133bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (channel == SCAN_WILD_CARD) { 2134bda232531f0c117921690ee3c060953c8f12e5a1James Smart chlo = 0; 2135bda232531f0c117921690ee3c060953c8f12e5a1James Smart chhi = shost->max_channel + 1; 2136bda232531f0c117921690ee3c060953c8f12e5a1James Smart } else { 2137bda232531f0c117921690ee3c060953c8f12e5a1James Smart chlo = channel; 2138bda232531f0c117921690ee3c060953c8f12e5a1James Smart chhi = channel + 1; 2139bda232531f0c117921690ee3c060953c8f12e5a1James Smart } 2140bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2141bda232531f0c117921690ee3c060953c8f12e5a1James Smart if (id == SCAN_WILD_CARD) { 2142bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgtlo = 0; 2143bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgthi = shost->max_id; 2144bda232531f0c117921690ee3c060953c8f12e5a1James Smart } else { 2145bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgtlo = id; 2146bda232531f0c117921690ee3c060953c8f12e5a1James Smart tgthi = id + 1; 2147bda232531f0c117921690ee3c060953c8f12e5a1James Smart } 2148bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2149bda232531f0c117921690ee3c060953c8f12e5a1James Smart for ( ; chlo < chhi; chlo++) 2150bda232531f0c117921690ee3c060953c8f12e5a1James Smart for ( ; tgtlo < tgthi; tgtlo++) 2151bda232531f0c117921690ee3c060953c8f12e5a1James Smart fc_user_scan_tgt(shost, chlo, tgtlo, lun); 2152bda232531f0c117921690ee3c060953c8f12e5a1James Smart 2153e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig return 0; 21545c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com} 21555c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 21567525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonoristatic int fc_tsk_mgmt_response(struct Scsi_Host *shost, u64 nexus, u64 tm_id, 21577525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori int result) 21587525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori{ 21597525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori struct fc_internal *i = to_fc_internal(shost->transportt); 21607525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori return i->f->tsk_mgmt_response(shost, nexus, tm_id, result); 21617525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori} 21627525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 21637525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonoristatic int fc_it_nexus_response(struct Scsi_Host *shost, u64 nexus, int result) 21647525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori{ 21657525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori struct fc_internal *i = to_fc_internal(shost->transportt); 21667525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori return i->f->it_nexus_response(shost, nexus, result); 21677525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori} 21687525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 21691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct scsi_transport_template * 21701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_attach_transport(struct fc_function_template *ft) 21711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 21721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int count; 217324669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen struct fc_internal *i = kzalloc(sizeof(struct fc_internal), 217424669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen GFP_KERNEL); 21751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!i)) 21771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 21781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.attrs = &i->starget_attrs[0]; 21801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.class = &fc_transport_class.class; 21811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.match = fc_target_match; 21821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_size = sizeof(struct fc_starget_attrs); 21831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->t.target_attrs); 21841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.attrs = &i->host_attrs[0]; 21861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.class = &fc_host_class.class; 21871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.match = fc_host_match; 21881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_size = sizeof(struct fc_host_attrs); 21891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ft->get_fc_host_stats) 21901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.statistics = &fc_statistics_group; 21911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->t.host_attrs); 21921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.attrs = &i->rport_attrs[0]; 21941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.class = &fc_rport_class.class; 21951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.match = fc_rport_match; 21961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->rport_attr_cont); 21971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2198a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.attrs = &i->vport_attrs[0]; 2199a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.class = &fc_vport_class.class; 2200a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attr_cont.ac.match = fc_vport_match; 2201a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_container_register(&i->vport_attr_cont); 2202a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 22031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f = ft; 22041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Transport uses the shost workq for scsi scanning */ 22061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.create_work_queue = 1; 22075c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 2208c829c394165f981d49f05a9be228404d7a9398d4James Smart i->t.eh_timed_out = fc_timed_out; 2209c829c394165f981d49f05a9be228404d7a9398d4James Smart 2210e02f3f59225d8c3b2a0ad0dc941a09865e27da61Christoph Hellwig i->t.user_scan = fc_user_scan; 22119ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 22127525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori /* target-mode drivers' functions */ 22137525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori i->t.tsk_mgmt_response = fc_tsk_mgmt_response; 22147525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori i->t.it_nexus_response = fc_it_nexus_response; 22157525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 22161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 22171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup SCSI Target Attributes. 22181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 22191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = 0; 22201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(node_name); 22211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(port_name); 22221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(port_id); 22231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_STARGET_NUM_ATTRS); 22251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = NULL; 22271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 22301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup SCSI Host Attributes. 22311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 22321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count=0; 22331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(node_name); 22341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_name); 22356b7281d0a0f8f99d39808088a036459f6f7906a6Andreas Herrmann SETUP_HOST_ATTRIBUTE_RD(permanent_port_name); 22361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_classes); 22371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_fc4s); 22381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_speeds); 22391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(maxframe_size); 2240a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_create) { 2241a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_HOST_ATTRIBUTE_RD_NS(max_npiv_vports); 2242a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_HOST_ATTRIBUTE_RD_NS(npiv_vports_inuse); 2243a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 22441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(serial_number); 2245bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh SETUP_HOST_ATTRIBUTE_RD(manufacturer); 2246bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh SETUP_HOST_ATTRIBUTE_RD(model); 2247bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh SETUP_HOST_ATTRIBUTE_RD(model_description); 2248bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh SETUP_HOST_ATTRIBUTE_RD(hardware_version); 2249bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh SETUP_HOST_ATTRIBUTE_RD(driver_version); 2250bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh SETUP_HOST_ATTRIBUTE_RD(firmware_version); 2251bb8ef587a715c6a084f80b9c311136aa765ebfadNeerav Parikh SETUP_HOST_ATTRIBUTE_RD(optionrom_version); 22521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_id); 22541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_type); 22551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_state); 22561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(active_fc4s); 22571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(speed); 22581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(fabric_name); 2259016131b8fffa1085b4ad165ab228116fdc278ebeJames Smart SETUP_HOST_ATTRIBUTE_RD(symbolic_name); 2260b8d08210126a7b769b857720a59721a453a57a1eJames Smart SETUP_HOST_ATTRIBUTE_RW(system_hostname); 22611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Transport-managed attributes */ 226343ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie SETUP_PRIVATE_HOST_ATTRIBUTE_RW(dev_loss_tmo); 22641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_HOST_ATTRIBUTE_RW(tgtid_bind_type); 226591ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez if (ft->issue_fc_host_lip) 226691ca7b01ecc916632202180569a7ddbfccfc3f05Andrew Vasquez SETUP_PRIVATE_HOST_ATTRIBUTE_RW(issue_lip); 2267a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_create) 2268a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_create); 2269a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (ft->vport_delete) 2270a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_HOST_ATTRIBUTE_RW(vport_delete); 22711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_HOST_NUM_ATTRS); 22731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = NULL; 22751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 22771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup Remote Port Attributes. 22781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 22791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count=0; 22801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RD(maxframe_size); 22811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RD(supported_classes); 22821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RW(dev_loss_tmo); 22831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(node_name); 22841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_name); 22851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_id); 22861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(roles); 22871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_state); 22881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(scsi_target_id); 2289fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo); 22901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_RPORT_NUM_ATTRS); 22921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = NULL; 22941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2295a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 2296a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Setup Virtual Port Attributes. 2297a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 2298a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart count=0; 2299a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_state); 2300a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_last_state); 2301a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(node_name); 2302a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(port_name); 2303a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(roles); 2304a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_PRIVATE_VPORT_ATTRIBUTE_RD(vport_type); 2305a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_RW(symbolic_name); 2306a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_WR(vport_delete); 2307a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart SETUP_VPORT_ATTRIBUTE_WR(vport_disable); 2308a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2309a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart BUG_ON(count > FC_VPORT_NUM_ATTRS); 2310a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2311a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart i->vport_attrs[count] = NULL; 2312a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 23131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t; 23141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_attach_transport); 23161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid fc_release_transport(struct scsi_transport_template *t) 23181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 23191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(t); 23201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->t.target_attrs); 23221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->t.host_attrs); 23231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->rport_attr_cont); 2324a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_container_unregister(&i->vport_attr_cont); 23251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(i); 23271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 23281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_release_transport); 23291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2330aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2331aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_queue_work - Queue work to the fc_host workqueue. 2332aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2333aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @work: Work to queue for execution. 2334aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2335aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * Return value: 2336a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * 1 - work queued for execution 2337a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * 0 - work is already queued 2338a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart * -EINVAL - work queue doesn't exist 2339eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2340aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int 2341aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_queue_work(struct Scsi_Host *shost, struct work_struct *work) 2342aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2343aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (unlikely(!fc_host_work_q(shost))) { 2344aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2345aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to queue work, " 2346aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2347aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2348aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2349aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -EINVAL; 2350aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2351aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2352aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return queue_work(fc_host_work_q(shost), work); 2353aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2354aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2355aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2356aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_flush_work - Flush a fc_host's workqueue. 2357aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2358eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2359aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2360aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_flush_work(struct Scsi_Host *shost) 2361aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2362aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host_work_q(shost)) { 2363aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2364aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to flush work, " 2365aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2366aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2367aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return; 2368aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2369aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2370aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart flush_workqueue(fc_host_work_q(shost)); 2371aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2372aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2373aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2374aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_queue_devloss_work - Schedule work for the fc_host devloss workqueue. 2375aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2376aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @work: Work to queue for execution. 2377aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @delay: jiffies to delay the work queuing 2378aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2379aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * Return value: 23800f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * 1 on success / 0 already queued / < 0 for error 2381eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2382aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic int 2383c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_queue_devloss_work(struct Scsi_Host *shost, struct delayed_work *work, 2384aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart unsigned long delay) 2385aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2386aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (unlikely(!fc_host_devloss_work_q(shost))) { 2387aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2388aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to queue work, " 2389aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2390aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2391aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2392aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return -EINVAL; 2393aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2394aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2395aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return queue_delayed_work(fc_host_devloss_work_q(shost), work, delay); 2396aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2397aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2398aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2399aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_flush_devloss - Flush a fc_host's devloss workqueue. 2400aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * @shost: Pointer to Scsi_Host bound to fc_host. 2401eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2402aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2403aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartfc_flush_devloss(struct Scsi_Host *shost) 2404aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2405aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (!fc_host_devloss_work_q(shost)) { 2406aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart printk(KERN_ERR 2407aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "ERROR: FC host '%s' attempted to flush work, " 2408aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "when no workqueue created.\n", shost->hostt->name); 2409aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart dump_stack(); 2410aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart return; 2411aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2412aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2413aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart flush_workqueue(fc_host_devloss_work_q(shost)); 2414aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2415aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 24161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2418eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remove_host - called to terminate any fc_transport-related elements for a scsi host. 2419eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @shost: Which &Scsi_Host 24201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 242125985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * This routine is expected to be called immediately preceding the 24221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a driver's call to scsi_remove_host(). 24231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 24241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * WARNING: A driver utilizing the fc_transport, which fails to call 2425eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * this routine prior to scsi_remove_host(), will leave dangling 24261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * objects in /sys/class/fc_remote_ports. Access to any of these 24271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * objects can result in a system crash !!! 24281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 24291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 24301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2431eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 24321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 24331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remove_host(struct Scsi_Host *shost) 24341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2435a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport = NULL, *next_vport = NULL; 2436a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_rport *rport = NULL, *next_rport = NULL; 2437aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct workqueue_struct *work_q; 2438aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 2439a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 2440a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2441a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 2442a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2443a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* Remove any vports */ 24449ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers) 24459ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart fc_queue_work(shost, &vport->vport_delete_work); 24461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 24471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Remove any remote ports */ 24481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry_safe(rport, next_rport, 2449aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart &fc_host->rports, peers) { 2450aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 2451aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 2452aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 2453aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2454aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 24551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry_safe(rport, next_rport, 2456aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart &fc_host->rport_bindings, peers) { 2457aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 2458aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 2459aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 2460aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2461aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2462a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 2463a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 2464aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all scan work items */ 2465aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_flush_work(shost); 2466aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2467aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all stgt delete, and rport delete work items, then kill it */ 2468aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->work_q) { 2469aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart work_q = fc_host->work_q; 2470aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->work_q = NULL; 2471aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(work_q); 2472aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 2473aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2474aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* flush all devloss work items, then kill it */ 2475aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->devloss_work_q) { 2476aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart work_q = fc_host->devloss_work_q; 2477aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_host->devloss_work_q = NULL; 2478aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart destroy_workqueue(work_q); 2479aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 24801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 24811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remove_host); 24821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2483fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christiestatic void fc_terminate_rport_io(struct fc_rport *rport) 2484fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie{ 2485fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie struct Scsi_Host *shost = rport_to_shost(rport); 2486fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie struct fc_internal *i = to_fc_internal(shost->transportt); 2487fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie 2488fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie /* Involve the LLDD if possible to terminate all io on the rport. */ 2489fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie if (i->f->terminate_rport_io) 2490fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie i->f->terminate_rport_io(rport); 2491fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie 2492fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie /* 24935d9fb5cc1b88277bb28a2a54e51b34cacaa123c2Mike Christie * Must unblock to flush queued IO. scsi-ml will fail incoming reqs. 2494fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie */ 24955d9fb5cc1b88277bb28a2a54e51b34cacaa123c2Mike Christie scsi_target_unblock(&rport->dev, SDEV_TRANSPORT_OFFLINE); 2496fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie} 2497aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2498aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 249925985edcedea6396277003854657b5f3cb31a628Lucas De Marchi * fc_starget_delete - called to delete the scsi descendants of an rport 2500c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be operated on. 2501eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 2502eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Deletes target and all sdevs. 2503eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 250419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Comstatic void 2505c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_starget_delete(struct work_struct *work) 250619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com{ 2507c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 2508c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, stgt_delete_work); 250919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2510fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie fc_terminate_rport_io(rport); 251119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com scsi_remove_target(&rport->dev); 251219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com} 251319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2514aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2515aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart/** 2516aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * fc_rport_final_delete - finish rport termination and delete it. 2517c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be deleted. 2518eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 2519aedf349773e5877d716a89368d512b9baa3e8c7bJames Smartstatic void 2520c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_rport_final_delete(struct work_struct *work) 2521aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart{ 2522c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 2523c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, rport_delete_work); 2524aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct device *dev = &rport->dev; 2525aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 25260f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 252792740b24ce6ddac6534fae985aab602548692186James Smart unsigned long flags; 25288798a694da59486e4a3ff0abeec183202fb34c20Michael Reed int do_callback = 0; 2529aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2530112f661d6dac9af1235d2d05299fc2c9cb876ae7Nithin Nayak Sujir fc_terminate_rport_io(rport); 2531112f661d6dac9af1235d2d05299fc2c9cb876ae7Nithin Nayak Sujir 2532aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* 25339ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * if a scan is pending, flush the SCSI Host work_q so that 2534aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * that we can reclaim the rport scan work element. 2535aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart */ 2536aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (rport->flags & FC_RPORT_SCAN_PENDING) 2537aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_flush_work(shost); 2538aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 253992740b24ce6ddac6534fae985aab602548692186James Smart /* 254092740b24ce6ddac6534fae985aab602548692186James Smart * Cancel any outstanding timers. These should really exist 254192740b24ce6ddac6534fae985aab602548692186James Smart * only when rmmod'ing the LLDD and we're asking for 254292740b24ce6ddac6534fae985aab602548692186James Smart * immediate termination of the rports 254392740b24ce6ddac6534fae985aab602548692186James Smart */ 254492740b24ce6ddac6534fae985aab602548692186James Smart spin_lock_irqsave(shost->host_lock, flags); 254592740b24ce6ddac6534fae985aab602548692186James Smart if (rport->flags & FC_RPORT_DEVLOSS_PENDING) { 254692740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, flags); 254792740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 254892740b24ce6ddac6534fae985aab602548692186James Smart fc_flush_devloss(shost); 254992740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->dev_loss_work)) 255092740b24ce6ddac6534fae985aab602548692186James Smart fc_flush_devloss(shost); 255192740b24ce6ddac6534fae985aab602548692186James Smart spin_lock_irqsave(shost->host_lock, flags); 255292740b24ce6ddac6534fae985aab602548692186James Smart rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; 255392740b24ce6ddac6534fae985aab602548692186James Smart } 255492740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, flags); 255592740b24ce6ddac6534fae985aab602548692186James Smart 25560f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart /* Delete SCSI target and sdevs */ 25570f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->scsi_target_id != -1) 2558c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells fc_starget_delete(&rport->stgt_delete_work); 255992740b24ce6ddac6534fae985aab602548692186James Smart 256092740b24ce6ddac6534fae985aab602548692186James Smart /* 256192740b24ce6ddac6534fae985aab602548692186James Smart * Notify the driver that the rport is now dead. The LLDD will 256292740b24ce6ddac6534fae985aab602548692186James Smart * also guarantee that any communication to the rport is terminated 25634be98c0ca304c8a47998b29a7993664f71791250James Smart * 25644be98c0ca304c8a47998b29a7993664f71791250James Smart * Avoid this call if we already called it when we preserved the 25654be98c0ca304c8a47998b29a7993664f71791250James Smart * rport for the binding. 256692740b24ce6ddac6534fae985aab602548692186James Smart */ 25678798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_lock_irqsave(shost->host_lock, flags); 25684be98c0ca304c8a47998b29a7993664f71791250James Smart if (!(rport->flags & FC_RPORT_DEVLOSS_CALLBK_DONE) && 25698798a694da59486e4a3ff0abeec183202fb34c20Michael Reed (i->f->dev_loss_tmo_callbk)) { 25708798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->flags |= FC_RPORT_DEVLOSS_CALLBK_DONE; 25718798a694da59486e4a3ff0abeec183202fb34c20Michael Reed do_callback = 1; 25728798a694da59486e4a3ff0abeec183202fb34c20Michael Reed } 25738798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_unlock_irqrestore(shost->host_lock, flags); 25748798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 25758798a694da59486e4a3ff0abeec183202fb34c20Michael Reed if (do_callback) 25760f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart i->f->dev_loss_tmo_callbk(rport); 25770f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 25789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_remove(rport->rqst_q); 25799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 2580aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart transport_remove_device(dev); 2581aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart device_del(dev); 2582aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart transport_destroy_device(dev); 25833bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(&shost->shost_gendev); /* for fc_host->rport list */ 25843bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(dev); /* for self-reference */ 2585aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart} 2586aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2587aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 25881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 25891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_rport_create - allocates and creates a remote FC port. 25901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @shost: scsi host the remote port is connected to. 25911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @channel: Channel on shost port connected to. 25921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ids: The world wide names, fc address, and FC4 port 25931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * roles for the remote port. 25941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Allocates and creates the remoter port structure, including the 25961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * class and sysfs creation. 25971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 25981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 25991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2600eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 260144818efbad185eea75adad0e8cab97650a7370abAdrian Bunkstatic struct fc_rport * 26021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_rport_create(struct Scsi_Host *shost, int channel, 26031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport_identifiers *ids) 26041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2605aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 26061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *fci = to_fc_internal(shost->transportt); 26071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport; 26081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev; 26091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 26101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 26111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t size; 26121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size = (sizeof(struct fc_rport) + fci->f->dd_fcrport_size); 261424669f75a3231fa37444977c92d1f4838bec1233Jes Sorensen rport = kzalloc(size, GFP_KERNEL); 26151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!rport)) { 2616cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison printk(KERN_ERR "%s: allocation failure\n", __func__); 26171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 26181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->maxframe_size = -1; 26211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->supported_classes = FC_COS_UNSPECIFIED; 262243ca910a9c90566308f39f51ac03a55f94a5f83cMike Christie rport->dev_loss_tmo = fc_host->dev_loss_tmo; 26231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->node_name, &ids->node_name, sizeof(rport->node_name)); 26241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->port_name, &ids->port_name, sizeof(rport->port_name)); 26251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = ids->port_id; 26261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = ids->roles; 26271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_ONLINE; 26281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fci->f->dd_fcrport_size) 26291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->dd_data = &rport[1]; 26301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->channel = channel; 26310f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo = -1; 26321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2633c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_DELAYED_WORK(&rport->dev_loss_work, fc_timeout_deleted_rport); 2634c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_DELAYED_WORK(&rport->fail_io_work, fc_timeout_fail_rport_io); 2635c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->scan_work, fc_scsi_scan_rport); 2636c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->stgt_delete_work, fc_starget_delete); 2637c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells INIT_WORK(&rport->rport_delete_work, fc_rport_final_delete); 26381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 26401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->number = fc_host->next_rport_number++; 2642a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles & FC_PORT_ROLE_FCP_TARGET) 26431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->scsi_target_id = fc_host->next_target_id++; 26441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 26451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->scsi_target_id = -1; 2646aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_add_tail(&rport->peers, &fc_host->rports); 26473bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart get_device(&shost->shost_gendev); /* for fc_host->rport list */ 26481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 26501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev = &rport->dev; 26523bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart device_initialize(dev); /* takes self reference */ 26533bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart dev->parent = get_device(&shost->shost_gendev); /* parent reference */ 26541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->release = fc_rport_dev_release; 265571610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_set_name(dev, "rport-%d:%d-%d", 265671610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers shost->host_no, channel, rport->number); 26571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_setup_device(dev); 26581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = device_add(dev); 26601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) { 26611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "FC Remote Port device_add failed\n"); 26621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto delete_rport; 26631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 26641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_add_device(dev); 26651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_configure_device(dev); 26661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_rportadd(shost, rport); 26689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* ignore any bsg add error - we just can't do sgio */ 26699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 2670a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (rport->roles & FC_PORT_ROLE_FCP_TARGET) { 26711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 2672aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 26731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 2674aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart } 26751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 26771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdelete_rport: 26791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_destroy_device(dev); 26801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 26811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_del(&rport->peers); 26823bdad7bd253f17ead00b4af2e82f84e9522c95acJames Smart put_device(&shost->shost_gendev); /* for fc_host->rport list */ 26831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 26841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(dev->parent); 26851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(rport); 26861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 26871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 26881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 26891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2690eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_add - notify fc transport of the existence of a remote FC port. 26911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @shost: scsi host the remote port is connected to. 26921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @channel: Channel on shost port connected to. 26931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ids: The world wide names, fc address, and FC4 port 26941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * roles for the remote port. 26951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 26961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LLDD calls this routine to notify the transport of the existence 26971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of a remote port. The LLDD provides the unique identifiers (wwpn,wwn) 26981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the port, it's FC address (port_id), and the FC4 roles that are 26991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * active for the port. 27001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For ports that are FCP targets (aka scsi targets), the FC transport 27021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * maintains consistent target id bindings on behalf of the LLDD. 27031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A consistent target id binding is an assignment of a target id to 27041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a remote port identifier, which persists while the scsi host is 27051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attached. The remote port can disappear, then later reappear, and 27061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it's target id assignment remains the same. This allows for shifts 27071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in FC addressing (if binding by wwpn or wwnn) with no apparent 27081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * changes to the scsi subsystem which is based on scsi host number and 27091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target id values. Bindings are only valid during the attachment of 27101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the scsi host. If the host detaches, then later re-attaches, target 27111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * id bindings may change. 27121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is responsible for returning a remote port structure. 27141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The routine will search the list of remote ports it maintains 27151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * internally on behalf of consistent target id mappings. If found, the 27161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * remote port structure will be reused. Otherwise, a new remote port 27171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * structure will be allocated. 27181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Whenever a remote port is allocated, a new fc_remote_port class 27201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device is created. 27211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should not be called from interrupt context. 27231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 27241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 27251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2726eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 27271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fc_rport * 27281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_add(struct Scsi_Host *shost, int channel, 27291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport_identifiers *ids) 27301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 273119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct fc_internal *fci = to_fc_internal(shost->transportt); 2732aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 27331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport; 27341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 27351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int match = 0; 27361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2737aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* ensure any stgt delete functions are done */ 2738aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_work(shost); 2739aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 274019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 274119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Search the list of "active" rports, for an rport that has been 274219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * deleted, but we've held off the real delete while the target 274319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * is in a "blocked" state. 274419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 274519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_lock_irqsave(shost->host_lock, flags); 274619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2747aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_for_each_entry(rport, &fc_host->rports, peers) { 274819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 274919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if ((rport->port_state == FC_PORTSTATE_BLOCKED) && 275019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com (rport->channel == channel)) { 275119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 2752aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart switch (fc_host->tgtid_bind_type) { 275319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_WWPN: 275419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_NONE: 275519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_name == ids->port_name) 275619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 275719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 275819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_WWNN: 275919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->node_name == ids->node_name) 276019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 276119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 276219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com case FC_TGTID_BIND_BY_ID: 276319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_id == ids->port_id) 276419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com match = 1; 276519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com break; 276619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 276719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 276819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (match) { 276919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 277019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memcpy(&rport->node_name, &ids->node_name, 277119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com sizeof(rport->node_name)); 277219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memcpy(&rport->port_name, &ids->port_name, 277319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com sizeof(rport->port_name)); 277419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_id = ids->port_id; 277519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 277619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->port_state = FC_PORTSTATE_ONLINE; 277719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->roles = ids->roles; 277819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 277919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 278019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 278119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (fci->f->dd_fcrport_size) 278219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memset(rport->dd_data, 0, 278319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com fci->f->dd_fcrport_size); 278419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 278519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 278692740b24ce6ddac6534fae985aab602548692186James Smart * If we were not a target, cancel the 278792740b24ce6ddac6534fae985aab602548692186James Smart * io terminate and rport timers, and 278892740b24ce6ddac6534fae985aab602548692186James Smart * we're done. 278992740b24ce6ddac6534fae985aab602548692186James Smart * 279092740b24ce6ddac6534fae985aab602548692186James Smart * If we were a target, but our new role 279192740b24ce6ddac6534fae985aab602548692186James Smart * doesn't indicate a target, leave the 279292740b24ce6ddac6534fae985aab602548692186James Smart * timers running expecting the role to 279392740b24ce6ddac6534fae985aab602548692186James Smart * change as the target fully logs in. If 279492740b24ce6ddac6534fae985aab602548692186James Smart * it doesn't, the target will be torn down. 279592740b24ce6ddac6534fae985aab602548692186James Smart * 279692740b24ce6ddac6534fae985aab602548692186James Smart * If we were a target, and our role shows 279792740b24ce6ddac6534fae985aab602548692186James Smart * we're still a target, cancel the timers 279892740b24ce6ddac6534fae985aab602548692186James Smart * and kick off a scan. 279919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 280019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 280192740b24ce6ddac6534fae985aab602548692186James Smart /* was a target, not in roles */ 280292740b24ce6ddac6534fae985aab602548692186James Smart if ((rport->scsi_target_id != -1) && 2803a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart (!(ids->roles & FC_PORT_ROLE_FCP_TARGET))) 280492740b24ce6ddac6534fae985aab602548692186James Smart return rport; 280519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 280619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 280792740b24ce6ddac6534fae985aab602548692186James Smart * Stop the fail io and dev_loss timers. 280892740b24ce6ddac6534fae985aab602548692186James Smart * If they flush, the port_state will 280992740b24ce6ddac6534fae985aab602548692186James Smart * be checked and will NOOP the function. 281019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 28110f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 28120f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_flush_devloss(shost); 281392740b24ce6ddac6534fae985aab602548692186James Smart if (!cancel_delayed_work(&rport->dev_loss_work)) 2814aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_devloss(shost); 2815aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2816aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 2817aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2818fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | 28194be98c0ca304c8a47998b29a7993664f71791250James Smart FC_RPORT_DEVLOSS_PENDING | 28204be98c0ca304c8a47998b29a7993664f71791250James Smart FC_RPORT_DEVLOSS_CALLBK_DONE); 282119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 28228fb2ef89b696624ea9853868e370d2e132e76f54Mike Christie spin_unlock_irqrestore(shost->host_lock, flags); 28238fb2ef89b696624ea9853868e370d2e132e76f54Mike Christie 282492740b24ce6ddac6534fae985aab602548692186James Smart /* if target, initiate a scan */ 282592740b24ce6ddac6534fae985aab602548692186James Smart if (rport->scsi_target_id != -1) { 28265d9fb5cc1b88277bb28a2a54e51b34cacaa123c2Mike Christie scsi_target_unblock(&rport->dev, 28275d9fb5cc1b88277bb28a2a54e51b34cacaa123c2Mike Christie SDEV_RUNNING); 28288fb2ef89b696624ea9853868e370d2e132e76f54Mike Christie spin_lock_irqsave(shost->host_lock, 28298fb2ef89b696624ea9853868e370d2e132e76f54Mike Christie flags); 283092740b24ce6ddac6534fae985aab602548692186James Smart rport->flags |= FC_RPORT_SCAN_PENDING; 283192740b24ce6ddac6534fae985aab602548692186James Smart scsi_queue_work(shost, 283292740b24ce6ddac6534fae985aab602548692186James Smart &rport->scan_work); 283392740b24ce6ddac6534fae985aab602548692186James Smart spin_unlock_irqrestore(shost->host_lock, 283492740b24ce6ddac6534fae985aab602548692186James Smart flags); 28358fb2ef89b696624ea9853868e370d2e132e76f54Mike Christie } 2836a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart 28379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_goose_queue(rport); 28389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 283919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return rport; 284019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 284119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 284219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 284319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 284492740b24ce6ddac6534fae985aab602548692186James Smart /* 284592740b24ce6ddac6534fae985aab602548692186James Smart * Search the bindings array 284692740b24ce6ddac6534fae985aab602548692186James Smart * Note: if never a FCP target, you won't be on this list 284792740b24ce6ddac6534fae985aab602548692186James Smart */ 2848aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if (fc_host->tgtid_bind_type != FC_TGTID_BIND_NONE) { 28491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* search for a matching consistent binding */ 28511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2852aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_for_each_entry(rport, &fc_host->rport_bindings, 28531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds peers) { 28541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->channel != channel) 28551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 28561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2857aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart switch (fc_host->tgtid_bind_type) { 28581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWPN: 28591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->port_name == ids->port_name) 28601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 28611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 28621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWNN: 28631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->node_name == ids->node_name) 28641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 28651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 28661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_ID: 28671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->port_id == ids->port_id) 28681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 28691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 28701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_NONE: /* to keep compiler happy */ 28711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 28721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match) { 2875aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_move_tail(&rport->peers, &fc_host->rports); 28761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 28771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 28791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match) { 28811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->node_name, &ids->node_name, 28821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(rport->node_name)); 28831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->port_name, &ids->port_name, 28841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(rport->port_name)); 28851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = ids->port_id; 28861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = ids->roles; 28871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_ONLINE; 2888fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; 28891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 289019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (fci->f->dd_fcrport_size) 289119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com memset(rport->dd_data, 0, 289219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com fci->f->dd_fcrport_size); 28938fb2ef89b696624ea9853868e370d2e132e76f54Mike Christie spin_unlock_irqrestore(shost->host_lock, flags); 28948fb2ef89b696624ea9853868e370d2e132e76f54Mike Christie 28958fb2ef89b696624ea9853868e370d2e132e76f54Mike Christie if (ids->roles & FC_PORT_ROLE_FCP_TARGET) { 28965d9fb5cc1b88277bb28a2a54e51b34cacaa123c2Mike Christie scsi_target_unblock(&rport->dev, SDEV_RUNNING); 289719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 28981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 28998fb2ef89b696624ea9853868e370d2e132e76f54Mike Christie spin_lock_irqsave(shost->host_lock, flags); 2900aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 29011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 2902a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 29038fb2ef89b696624ea9853868e370d2e132e76f54Mike Christie } 29041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 29051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 29061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 29071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 290819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 290919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 29101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* No consistent binding found - create new remote port entry */ 29111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport = fc_rport_create(shost, channel, ids); 29121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 29141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 29151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_add); 29161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 29181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2919eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_delete - notifies the fc transport that a remote port is no longer in existence. 29201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port that no longer exists 29211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 29221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LLDD calls this routine to notify the transport that a remote 29231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * port is no longer part of the topology. Note: Although a port 29241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * may no longer be part of the topology, it may persist in the remote 292519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * ports displayed by the fc_host. We do this under 2 conditions: 2926eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 1) If the port was a scsi target, we delay its deletion by "blocking" it. 292719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * This allows the port to temporarily disappear, then reappear without 292819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * disrupting the SCSI device tree attached to it. During the "blocked" 292919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * period the port will still exist. 2930eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 2) If the port was a scsi target and disappears for longer than we 293119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * expect, we'll delete the port and the tear down the SCSI device tree 293219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * attached to it. However, we want to semi-persist the target id assigned 293319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * to that port if it eventually does exist. The port structure will 293419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * remain (although with minimal information) so that the target id 293519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * bindings remails. 29361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 29371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If the remote port is not an FCP Target, it will be fully torn down 29381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and deallocated, including the fc_remote_port class device. 29391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 294019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port is an FCP Target, the port will be placed in a 294119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * temporary blocked state. From the LLDD's perspective, the rport no 294219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * longer exists. From the SCSI midlayer's perspective, the SCSI target 294319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * exists, but all sdevs on it are blocked from further I/O. The following 2944eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * is then expected. 2945eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 294619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port does not return (signaled by a LLDD call to 294719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * fc_remote_port_add()) within the dev_loss_tmo timeout, then the 294819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi target is removed - killing all outstanding i/o and removing the 294919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi devices attached ot it. The port structure will be marked Not 295019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Present and be partially cleared, leaving only enough information to 295119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * recognize the remote port relative to the scsi target id binding if 295219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * it later appears. The port will remain as long as there is a valid 295319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * binding (e.g. until the user changes the binding type or unloads the 295419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi host with the binding). 29551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 295619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * If the remote port returns within the dev_loss_tmo value (and matches 295719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * according to the target id binding type), the port structure will be 295819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * reused. If it is no longer a SCSI target, the target will be torn 295919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * down. If it continues to be a SCSI target, then the target will be 296019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * unblocked (allowing i/o to be resumed), and a scan will be activated 296119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * to ensure that all luns are detected. 296219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * 296319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Called from normal process context only - cannot be called from interrupt. 29641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 29651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 29661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 2967eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 29681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 29691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_delete(struct fc_rport *rport) 29701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2971aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 297236dd288f0f930c154ec6a4d73a6a35f3079418c6Hannes Reinecke unsigned long timeout = rport->dev_loss_tmo; 2973aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart unsigned long flags; 2974aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2975aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* 2976aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * No need to flush the fc_host work_q's, as all adds are synchronous. 2977aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * 2978aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * We do need to reclaim the rport scan work element, so eventually 2979aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * (in fc_rport_final_delete()) we'll flush the scsi host work_q if 2980aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart * there's still a scan pending. 2981aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart */ 2982aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 2983aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 29841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 298592740b24ce6ddac6534fae985aab602548692186James Smart if (rport->port_state != FC_PORTSTATE_ONLINE) { 2986aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 29871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 29881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 29891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 299092740b24ce6ddac6534fae985aab602548692186James Smart /* 299192740b24ce6ddac6534fae985aab602548692186James Smart * In the past, we if this was not an FCP-Target, we would 299292740b24ce6ddac6534fae985aab602548692186James Smart * unconditionally just jump to deleting the rport. 299392740b24ce6ddac6534fae985aab602548692186James Smart * However, rports can be used as node containers by the LLDD, 299492740b24ce6ddac6534fae985aab602548692186James Smart * and its not appropriate to just terminate the rport at the 299592740b24ce6ddac6534fae985aab602548692186James Smart * first sign of a loss in connectivity. The LLDD may want to 299692740b24ce6ddac6534fae985aab602548692186James Smart * send ELS traffic to re-validate the login. If the rport is 299792740b24ce6ddac6534fae985aab602548692186James Smart * immediately deleted, it makes it inappropriate for a node 299892740b24ce6ddac6534fae985aab602548692186James Smart * container. 299992740b24ce6ddac6534fae985aab602548692186James Smart * So... we now unconditionally wait dev_loss_tmo before 300092740b24ce6ddac6534fae985aab602548692186James Smart * destroying an rport. 300192740b24ce6ddac6534fae985aab602548692186James Smart */ 300292740b24ce6ddac6534fae985aab602548692186James Smart 3003aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_BLOCKED; 3004aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 3005aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_DEVLOSS_PENDING; 3006aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 3007aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 3008aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 30097525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori if (rport->roles & FC_PORT_ROLE_FCP_INITIATOR && 30107525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori shost->active_mode & MODE_TARGET) 30117525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori fc_tgt_it_nexus_destroy(shost, (unsigned long)rport); 30127525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori 301319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com scsi_target_block(&rport->dev); 30141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 30150f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart /* see if we need to kill io faster than waiting for device loss */ 30160f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if ((rport->fast_io_fail_tmo != -1) && 3017fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie (rport->fast_io_fail_tmo < timeout)) 30180f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_queue_devloss_work(shost, &rport->fail_io_work, 30190f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart rport->fast_io_fail_tmo * HZ); 30200f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 302119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* cap the length the devices can be blocked until they are deleted */ 3022aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_devloss_work(shost, &rport->dev_loss_work, timeout * HZ); 30231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 30241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_delete); 30251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 30261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3027eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_remote_port_rolechg - notifies the fc transport that the roles on a remote may have changed. 30281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port that changed. 3029eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * @roles: New roles for this port. 30301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3031eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Description: The LLDD calls this routine to notify the transport that the 3032eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * roles on a remote port may have changed. The largest effect of this is 30331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if a port now becomes a FCP Target, it must be allocated a 30341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi target id. If the port is no longer a FCP target, any 30351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi target id value assigned to it will persist in case the 30361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * role changes back to include FCP Target. No changes in the scsi 30371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * midlayer will be invoked if the role changes (in the expectation 30381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that the role will be resumed. If it doesn't normal error processing 30391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * will take place). 30401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 30411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should not be called from interrupt context. 30421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 30431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 30441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 3045eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 30461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 30471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_rolechg(struct fc_rport *rport, u32 roles) 30481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 30491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); 3050aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 30511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 30521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int create = 0; 30537525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori int ret; 30541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 30551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 3056a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (roles & FC_PORT_ROLE_FCP_TARGET) { 305719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->scsi_target_id == -1) { 305819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->scsi_target_id = fc_host->next_target_id++; 305919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com create = 1; 3060a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } else if (!(rport->roles & FC_PORT_ROLE_FCP_TARGET)) 306119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com create = 1; 30627525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori } else if (shost->active_mode & MODE_TARGET) { 30637525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori ret = fc_tgt_it_nexus_create(shost, (unsigned long)rport, 30647525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori (char *)&rport->node_name); 30657525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori if (ret) 30667525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori printk(KERN_ERR "FC Remore Port tgt nexus failed %d\n", 30677525236d0bc7ad17eb5e0733417896cab745d6c8FUJITA Tomonori ret); 30681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 30691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 307019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->roles = roles; 307119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 3072aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 3073aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 307419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (create) { 307519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 307619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * There may have been a delete timer running on the 307719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * port. Ensure that it is cancelled as we now know 307819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * the port is an FCP Target. 307919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Note: we know the rport is exists and in an online 308019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * state as the LLDD would not have had an rport 308119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * reference to pass us. 308219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * 308319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Take no action on the del_timer failure as the state 308419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * machine state change will validate the 308519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * transaction. 308619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 30870f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (!cancel_delayed_work(&rport->fail_io_work)) 30880f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart fc_flush_devloss(shost); 308919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (!cancel_delayed_work(&rport->dev_loss_work)) 3090aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_devloss(shost); 3091aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 3092aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 3093fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | 30940eecee413d3157bac4477362bfc4b907b4b2988bJames Smart FC_RPORT_DEVLOSS_PENDING | 30950eecee413d3157bac4477362bfc4b907b4b2988bJames Smart FC_RPORT_DEVLOSS_CALLBK_DONE); 3096aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 3097aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 3098aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart /* ensure any stgt delete functions are done */ 3099aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_flush_work(shost); 310019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 31015d9fb5cc1b88277bb28a2a54e51b34cacaa123c2Mike Christie scsi_target_unblock(&rport->dev, SDEV_RUNNING); 31021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 3103aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 3104aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags |= FC_RPORT_SCAN_PENDING; 31051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 3106aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 310719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 31081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 31091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_rolechg); 31101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3112eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_timeout_deleted_rport - Timeout handler for a deleted remote port. 311392740b24ce6ddac6534fae985aab602548692186James Smart * @work: rport target that failed to reappear in the allotted time. 3114eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * 3115eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * Description: An attempt to delete a remote port blocks, and if it fails 3116eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * to return in the allotted time this gets called. 3117eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 31181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 3119c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_timeout_deleted_rport(struct work_struct *work) 31201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3121c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 3122c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, dev_loss_work.work); 312319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com struct Scsi_Host *shost = rport_to_shost(rport); 31244be98c0ca304c8a47998b29a7993664f71791250James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 3125aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 312619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com unsigned long flags; 31278798a694da59486e4a3ff0abeec183202fb34c20Michael Reed int do_callback = 0; 31281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 312919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_lock_irqsave(shost->host_lock, flags); 31301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3131aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; 3132aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 31331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 313492740b24ce6ddac6534fae985aab602548692186James Smart * If the port is ONLINE, then it came back. If it was a SCSI 313592740b24ce6ddac6534fae985aab602548692186James Smart * target, validate it still is. If not, tear down the 313692740b24ce6ddac6534fae985aab602548692186James Smart * scsi_target on it. 31371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3138aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if ((rport->port_state == FC_PORTSTATE_ONLINE) && 313992740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) && 3140a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart !(rport->roles & FC_PORT_ROLE_FCP_TARGET)) { 314119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 3142aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart "blocked FC remote port time out: no longer" 3143aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart " a FCP target, removing starget\n"); 3144aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 31455d9fb5cc1b88277bb28a2a54e51b34cacaa123c2Mike Christie scsi_target_unblock(&rport->dev, SDEV_TRANSPORT_OFFLINE); 3146a0785edff7b316cad566bdc369d3d034c4c1a39cJames Smart fc_queue_work(shost, &rport->stgt_delete_work); 314719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 314819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 31491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 315092740b24ce6ddac6534fae985aab602548692186James Smart /* NOOP state - we're flushing workq's */ 315119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com if (rport->port_state != FC_PORTSTATE_BLOCKED) { 315219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 315319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 315492740b24ce6ddac6534fae985aab602548692186James Smart "blocked FC remote port time out: leaving" 315592740b24ce6ddac6534fae985aab602548692186James Smart " rport%s alone\n", 315692740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) ? " and starget" : ""); 315719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 315819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 31591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 316092740b24ce6ddac6534fae985aab602548692186James Smart if ((fc_host->tgtid_bind_type == FC_TGTID_BIND_NONE) || 316192740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id == -1)) { 3162aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_del(&rport->peers); 3163aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_DELETED; 316419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 316592740b24ce6ddac6534fae985aab602548692186James Smart "blocked FC remote port time out: removing" 316692740b24ce6ddac6534fae985aab602548692186James Smart " rport%s\n", 316792740b24ce6ddac6534fae985aab602548692186James Smart (rport->scsi_target_id != -1) ? " and starget" : ""); 3168aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart fc_queue_work(shost, &rport->rport_delete_work); 3169aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_unlock_irqrestore(shost->host_lock, flags); 317019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com return; 317119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 31721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 317319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com dev_printk(KERN_ERR, &rport->dev, 317419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com "blocked FC remote port time out: removing target and " 317519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com "saving binding\n"); 317619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 3177aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart list_move_tail(&rport->peers, &fc_host->rport_bindings); 31781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 318019a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Note: We do not remove or clear the hostdata area. This allows 318119a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * host-specific target data to persist along with the 318219a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * scsi_target_id. It's up to the host to manage it's hostdata area. 31831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 31841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 318519a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com /* 318619a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com * Reinitialize port attributes that may change if the port comes back. 318719a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com */ 318819a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->maxframe_size = -1; 318919a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com rport->supported_classes = FC_COS_UNSPECIFIED; 3190a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart rport->roles = FC_PORT_ROLE_UNKNOWN; 3191aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->port_state = FC_PORTSTATE_NOTPRESENT; 3192fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; 31931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3194f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart /* 3195f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * Pre-emptively kill I/O rather than waiting for the work queue 3196f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * item to teardown the starget. (FCOE libFC folks prefer this 3197f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart * and to have the rport_port_id still set when it's done). 3198f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart */ 3199f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3200f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart fc_terminate_rport_io(rport); 3201f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart 32028798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_lock_irqsave(shost->host_lock, flags); 32038798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 32048798a694da59486e4a3ff0abeec183202fb34c20Michael Reed if (rport->port_state == FC_PORTSTATE_NOTPRESENT) { /* still missing */ 3205f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4James Smart 32068798a694da59486e4a3ff0abeec183202fb34c20Michael Reed /* remove the identifiers that aren't used in the consisting binding */ 32078798a694da59486e4a3ff0abeec183202fb34c20Michael Reed switch (fc_host->tgtid_bind_type) { 32088798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_BY_WWPN: 32098798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->node_name = -1; 32108798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_id = -1; 32118798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 32128798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_BY_WWNN: 32138798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_name = -1; 32148798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_id = -1; 32158798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 32168798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_BY_ID: 32178798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->node_name = -1; 32188798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->port_name = -1; 32198798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 32208798a694da59486e4a3ff0abeec183202fb34c20Michael Reed case FC_TGTID_BIND_NONE: /* to keep compiler happy */ 32218798a694da59486e4a3ff0abeec183202fb34c20Michael Reed break; 32228798a694da59486e4a3ff0abeec183202fb34c20Michael Reed } 32238798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 32248798a694da59486e4a3ff0abeec183202fb34c20Michael Reed /* 32258798a694da59486e4a3ff0abeec183202fb34c20Michael Reed * As this only occurs if the remote port (scsi target) 32268798a694da59486e4a3ff0abeec183202fb34c20Michael Reed * went away and didn't come back - we'll remove 32278798a694da59486e4a3ff0abeec183202fb34c20Michael Reed * all attached scsi devices. 32288798a694da59486e4a3ff0abeec183202fb34c20Michael Reed */ 32298798a694da59486e4a3ff0abeec183202fb34c20Michael Reed rport->flags |= FC_RPORT_DEVLOSS_CALLBK_DONE; 32308798a694da59486e4a3ff0abeec183202fb34c20Michael Reed fc_queue_work(shost, &rport->stgt_delete_work); 32318798a694da59486e4a3ff0abeec183202fb34c20Michael Reed 32328798a694da59486e4a3ff0abeec183202fb34c20Michael Reed do_callback = 1; 323319a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com } 323419a7b4aebf9ad435c69a7e39930338499af4d152James.Smart@Emulex.Com 32358798a694da59486e4a3ff0abeec183202fb34c20Michael Reed spin_unlock_irqrestore(shost->host_lock, flags); 32364be98c0ca304c8a47998b29a7993664f71791250James Smart 32374be98c0ca304c8a47998b29a7993664f71791250James Smart /* 32384be98c0ca304c8a47998b29a7993664f71791250James Smart * Notify the driver that the rport is now dead. The LLDD will 32394be98c0ca304c8a47998b29a7993664f71791250James Smart * also guarantee that any communication to the rport is terminated 32404be98c0ca304c8a47998b29a7993664f71791250James Smart * 32414be98c0ca304c8a47998b29a7993664f71791250James Smart * Note: we set the CALLBK_DONE flag above to correspond 32424be98c0ca304c8a47998b29a7993664f71791250James Smart */ 32438798a694da59486e4a3ff0abeec183202fb34c20Michael Reed if (do_callback && i->f->dev_loss_tmo_callbk) 32444be98c0ca304c8a47998b29a7993664f71791250James Smart i->f->dev_loss_tmo_callbk(rport); 32451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 32461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 32474be98c0ca304c8a47998b29a7993664f71791250James Smart 32481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3249eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley * fc_timeout_fail_rport_io - Timeout handler for a fast io failing on a disconnected SCSI target. 3250c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: rport to terminate io on. 32510f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * 32520f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * Notes: Only requests the failure of the io, not that all are flushed 32530f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart * prior to returning. 3254eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 32550f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smartstatic void 3256c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_timeout_fail_rport_io(struct work_struct *work) 32570f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart{ 3258c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 3259c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, fail_io_work.work); 32600f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 32610f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart if (rport->port_state != FC_PORTSTATE_BLOCKED) 32620f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart return; 32630f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 3264fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie rport->flags |= FC_RPORT_FAST_FAIL_TIMEDOUT; 3265fff9d40ce0eb4b46f3e186823ceab6bc02c3e5d3Mike Christie fc_terminate_rport_io(rport); 32660f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart} 32670f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart 32680f29b966d60e9a4f5ecff9f3832257b38aea4f13James Smart/** 32691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_scsi_scan_rport - called to perform a scsi scan on a remote port. 3270c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells * @work: remote port to be scanned. 3271eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 32721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 3273c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howellsfc_scsi_scan_rport(struct work_struct *work) 32741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3275c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells struct fc_rport *rport = 3276c4028958b6ecad064b1a6303a6a5906d4fe48d73David Howells container_of(work, struct fc_rport, scan_work); 3277aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart struct Scsi_Host *shost = rport_to_shost(rport); 327803f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt struct fc_internal *i = to_fc_internal(shost->transportt); 327942e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com unsigned long flags; 328042e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 3281aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart if ((rport->port_state == FC_PORTSTATE_ONLINE) && 328203f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt (rport->roles & FC_PORT_ROLE_FCP_TARGET) && 328303f002f778e58e9056e8e9a22952c5c6f4d76269Christof Schmitt !(i->f->disable_target_scan)) { 3284aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart scsi_scan_target(&rport->dev, rport->channel, 3285aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->scsi_target_id, SCAN_WILD_CARD, 1); 328642e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com } 3287aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart 3288aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart spin_lock_irqsave(shost->host_lock, flags); 3289aedf349773e5877d716a89368d512b9baa3e8c7bJames Smart rport->flags &= ~FC_RPORT_SCAN_PENDING; 329042e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 329142e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com} 329242e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 329365d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt/** 329465d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * fc_block_scsi_eh - Block SCSI eh thread for blocked fc_rport 329565d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * @cmnd: SCSI command that scsi_eh is trying to recover 329665d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * 329765d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * This routine can be called from a FC LLD scsi_eh callback. It 329865d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt * blocks the scsi_eh thread until the fc_rport leaves the 32992f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * FC_PORTSTATE_BLOCKED, or the fast_io_fail_tmo fires. This is 33002f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * necessary to avoid the scsi_eh failing recovery actions for blocked 33012f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * rports which would lead to offlined SCSI devices. 33022f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * 33032f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * Returns: 0 if the fc_rport left the state FC_PORTSTATE_BLOCKED. 33042f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * FAST_IO_FAIL if the fast_io_fail_tmo fired, this should be 33052f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt * passed back to scsi_eh. 330665d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt */ 33072f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmittint fc_block_scsi_eh(struct scsi_cmnd *cmnd) 330865d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt{ 330965d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt struct Scsi_Host *shost = cmnd->device->host; 331065d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); 331165d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt unsigned long flags; 331265d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt 331365d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_lock_irqsave(shost->host_lock, flags); 33142f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt while (rport->port_state == FC_PORTSTATE_BLOCKED && 33152f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt !(rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT)) { 331665d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_unlock_irqrestore(shost->host_lock, flags); 331765d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt msleep(1000); 331865d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_lock_irqsave(shost->host_lock, flags); 331965d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt } 332065d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt spin_unlock_irqrestore(shost->host_lock, flags); 33212f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt 33222f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt if (rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT) 33232f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt return FAST_IO_FAIL; 33242f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt 33252f2eb58762b4dcddfe25c90800323765c1257ecaChristof Schmitt return 0; 332665d430fa99cbd0e88d09a3343f697c51fc8a7009Christof Schmitt} 332765d430fa99cbd0e88d09a3343f697c51fc8a7009Christof SchmittEXPORT_SYMBOL(fc_block_scsi_eh); 332842e33148df38c60b99d984b76b302c64397ebe4cJames.Smart@Emulex.Com 3329a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/** 3330a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * fc_vport_setup - allocates and creates a FC virtual port. 3331a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @shost: scsi host the virtual port is connected to. 3332a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @channel: Channel on shost port connected to. 3333a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @pdev: parent device for vport 3334a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @ids: The world wide names, FC4 port roles, etc for 3335a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the virtual port. 3336a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @ret_vport: The pointer to the created vport. 3337a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3338a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Allocates and creates the vport structure, calls the parent host 3339a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * to instantiate the vport, the completes w/ class and sysfs creation. 3340a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3341a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Notes: 3342a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * This routine assumes no locks are held on entry. 3343eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 3344a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartstatic int 3345a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezfc_vport_setup(struct Scsi_Host *shost, int channel, struct device *pdev, 3346a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport_identifiers *ids, struct fc_vport **ret_vport) 3347a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 3348a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3349a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *fci = to_fc_internal(shost->transportt); 3350a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_vport *vport; 3351a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev; 3352a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 3353a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size_t size; 3354a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int error; 3355a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3356a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *ret_vport = NULL; 3357a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3358a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if ( ! fci->f->vport_create) 3359a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOENT; 3360a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3361a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart size = (sizeof(struct fc_vport) + fci->f->dd_fcvport_size); 3362a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport = kzalloc(size, GFP_KERNEL); 3363a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (unlikely(!vport)) { 3364cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison printk(KERN_ERR "%s: allocation failure\n", __func__); 3365a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOMEM; 3366a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3367a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3368a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_state = FC_VPORT_UNKNOWN; 3369a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_last_state = FC_VPORT_UNKNOWN; 3370a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->node_name = ids->node_name; 3371a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->port_name = ids->port_name; 3372a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->roles = ids->roles; 3373a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->vport_type = ids->vport_type; 3374a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (fci->f->dd_fcvport_size) 3375a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->dd_data = &vport[1]; 3376a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->shost = shost; 3377a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->channel = channel; 3378a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags = FC_VPORT_CREATING; 33799ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart INIT_WORK(&vport->vport_delete_work, fc_vport_sched_delete); 3380a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3381a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3382a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3383a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (fc_host->npiv_vports_inuse >= fc_host->max_npiv_vports) { 3384a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3385a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 3386a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return -ENOSPC; 3387a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3388a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse++; 3389a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->number = fc_host->next_vport_number++; 3390a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_add_tail(&vport->peers, &fc_host->vports); 3391a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart get_device(&shost->shost_gendev); /* for fc_host->vport list */ 3392a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3393a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3394a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3395a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev = &vport->dev; 3396a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_initialize(dev); /* takes self reference */ 3397a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev->parent = get_device(pdev); /* takes parent reference */ 3398a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev->release = fc_vport_dev_release; 339971610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_set_name(dev, "vport-%d:%d-%d", 340071610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers shost->host_no, channel, vport->number); 3401a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_setup_device(dev); 3402a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3403a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = device_add(dev); 3404a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) { 3405a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR "FC Virtual Port device_add failed\n"); 3406a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart goto delete_vport; 3407a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3408a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_add_device(dev); 3409a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_configure_device(dev); 3410a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3411a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = fci->f->vport_create(vport, ids->disable); 3412a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) { 3413a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR "FC Virtual Port LLDD Create failed\n"); 3414a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart goto delete_vport_all; 3415a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3416a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3417a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 3418a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * if the parent isn't the physical adapter's Scsi_Host, ensure 3419a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the Scsi_Host at least contains ia symlink to the vport. 3420a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 3421a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (pdev != &shost->shost_gendev) { 3422a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart error = sysfs_create_link(&shost->shost_gendev.kobj, 342371610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers &dev->kobj, dev_name(dev)); 3424a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (error) 3425a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart printk(KERN_ERR 3426a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "%s: Cannot create vport symlinks for " 3427a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart "%s, err=%d\n", 342871610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers __func__, dev_name(dev), error); 3429a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3430a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3431a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags &= ~FC_VPORT_CREATING; 3432a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3433a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3434a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart dev_printk(KERN_NOTICE, pdev, 343571610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers "%s created via shost%d channel %d\n", dev_name(dev), 3436a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart shost->host_no, channel); 3437a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3438a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart *ret_vport = vport; 3439a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3440a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; 3441a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3442a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartdelete_vport_all: 3443a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_remove_device(dev); 3444a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_del(dev); 3445a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartdelete_vport: 3446a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_destroy_device(dev); 3447a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3448a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_del(&vport->peers); 3449a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(&shost->shost_gendev); /* for fc_host->vport list */ 3450a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse--; 3451a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3452a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev->parent); 3453a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart kfree(vport); 3454a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3455a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return error; 3456a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 3457a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3458a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez/** 3459a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * fc_vport_create - Admin App or LLDD requests creation of a vport 3460a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @shost: scsi host the virtual port is connected to. 3461a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @channel: channel on shost port connected to. 3462a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * @ids: The world wide names, FC4 port roles, etc for 3463a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * the virtual port. 3464a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * 3465a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * Notes: 3466a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez * This routine assumes no locks are held on entry. 3467a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez */ 3468a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezstruct fc_vport * 3469a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquezfc_vport_create(struct Scsi_Host *shost, int channel, 3470a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez struct fc_vport_identifiers *ids) 3471a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez{ 3472a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez int stat; 3473a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez struct fc_vport *vport; 3474a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez 3475a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez stat = fc_vport_setup(shost, channel, &shost->shost_gendev, 3476a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez ids, &vport); 3477a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez return stat ? NULL : vport; 3478a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew Vasquez} 3479a30c3f69e6336cb9b09a989595e417367e4e9b1bAndrew VasquezEXPORT_SYMBOL(fc_vport_create); 3480a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3481a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart/** 3482a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * fc_vport_terminate - Admin App or LLDD requests termination of a vport 3483a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * @vport: fc_vport to be terminated 3484a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3485a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Calls the LLDD vport_delete() function, then deallocates and removes 3486a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * the vport from the shost and object tree. 3487a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * 3488a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Notes: 3489a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * This routine assumes no locks are held on entry. 3490eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 3491a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartint 3492a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smartfc_vport_terminate(struct fc_vport *vport) 3493a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart{ 3494a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct Scsi_Host *shost = vport_to_shost(vport); 3495a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_host_attrs *fc_host = shost_to_fc_host(shost); 3496a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 3497a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart struct device *dev = &vport->dev; 3498a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart unsigned long flags; 3499a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart int stat; 3500a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3501a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (i->f->vport_delete) 3502a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = i->f->vport_delete(vport); 3503a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart else 3504a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart stat = -ENOENT; 3505a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3506a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_lock_irqsave(shost->host_lock, flags); 3507a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags &= ~FC_VPORT_DELETING; 3508a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (!stat) { 3509a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart vport->flags |= FC_VPORT_DELETED; 3510a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart list_del(&vport->peers); 3511a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart fc_host->npiv_vports_inuse--; 3512a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(&shost->shost_gendev); /* for fc_host->vport list */ 3513a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart } 3514a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart spin_unlock_irqrestore(shost->host_lock, flags); 3515a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3516a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (stat) 3517a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return stat; 3518a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3519a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart if (dev->parent != &shost->shost_gendev) 352071610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers sysfs_remove_link(&shost->shost_gendev.kobj, dev_name(dev)); 3521a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_remove_device(dev); 3522a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart device_del(dev); 3523a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart transport_destroy_device(dev); 3524a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3525a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart /* 3526a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * Removing our self-reference should mean our 3527a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * release function gets called, which will drop the remaining 3528a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart * parent reference and free the data structure. 3529a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart */ 3530a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart put_device(dev); /* for self-reference */ 3531a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 3532a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart return 0; /* SUCCESS */ 3533a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart} 3534a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James SmartEXPORT_SYMBOL(fc_vport_terminate); 3535a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 35369ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart/** 35379ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * fc_vport_sched_delete - workq-based delete request for a vport 35389ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart * @work: vport to be deleted. 3539eb44820c28bc9a042e1157b41c677018a8fdfc74Rob Landley */ 35409ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartstatic void 35419ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smartfc_vport_sched_delete(struct work_struct *work) 35429ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart{ 35439ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart struct fc_vport *vport = 35449ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart container_of(work, struct fc_vport, vport_delete_work); 35459ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart int stat; 35469ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 35479ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart stat = fc_vport_terminate(vport); 35489ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart if (stat) 35499ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart dev_printk(KERN_ERR, vport->dev.parent, 35509ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart "%s: %s could not be deleted created via " 3551cadbd4a5e36dde7e6c49b587b2c419103c0b7218Harvey Harrison "shost%d channel %d - error %d\n", __func__, 355271610f55fa4db63dbf5385929a47c9fb2451f332Kay Sievers dev_name(&vport->dev), vport->shost->host_no, 35539ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart vport->channel, stat); 35549ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart} 35559ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart 3556a53eb5e060c0ec7245c8f93b9dcd94afa6041e06James Smart 35579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/* 35589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * BSG support 35599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 35609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 35639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_destroy_bsgjob - routine to teardown/delete a fc bsg job 35649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: fc_bsg_job that is to be torn down 35659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 35669e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 35679e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_destroy_bsgjob(struct fc_bsg_job *job) 35689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 35699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart unsigned long flags; 35709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irqsave(&job->job_lock, flags); 35729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->ref_cnt) { 35739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 35749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 35759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 35769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 35779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(job->dev); /* release reference for the request */ 35799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->request_payload.sg_list); 35819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->reply_payload.sg_list); 35829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job); 35839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 35849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 35869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_jobdone - completion routine for bsg requests that the LLD has 35879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * completed 35889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: fc_bsg_job that is complete 35899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 35909e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 35919e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_jobdone(struct fc_bsg_job *job) 35929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 35939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req = job->req; 35949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *rsp = req->next_rq; 35959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 35969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 35979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = job->req->errors = job->reply->result; 3598b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali 35999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err < 0) 36009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* we're only returning the result field in the reply */ 36019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req->sense_len = sizeof(uint32_t); 36029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 36039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req->sense_len = job->reply_len; 36049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* we assume all request payload was transferred, residual == 0 */ 36069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->resid_len = 0; 36079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rsp) { 36099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart WARN_ON(job->reply->reply_payload_rcv_len > rsp->resid_len); 36109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* set reply (bidi) residual */ 36129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rsp->resid_len -= min(job->reply->reply_payload_rcv_len, 36139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rsp->resid_len); 36149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 3615b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_complete_request(req); 3616b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali} 3617b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali 3618b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali/** 3619b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali * fc_bsg_softirq_done - softirq done routine for destroying the bsg requests 3620fe5d20c818a8c5fe83d9f2223a051fb5bc50d180Randy Dunlap * @rq: BSG request that holds the job to be destroyed 3621b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali */ 3622b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavalistatic void fc_bsg_softirq_done(struct request *rq) 3623b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali{ 3624b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali struct fc_bsg_job *job = rq->special; 3625b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali unsigned long flags; 36269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 3627b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali spin_lock_irqsave(&job->job_lock, flags); 3628b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali job->state_flags |= FC_RQST_STATE_DONE; 3629b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali job->ref_cnt--; 3630b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali spin_unlock_irqrestore(&job->job_lock, flags); 36319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 3632b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_end_request_all(rq, rq->errors); 36339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_destroy_bsgjob(job); 36349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 36359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 36379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_job_timeout - handler for when a bsg request timesout 36389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @req: request that timed out 36399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 36409e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum blk_eh_timer_return 36419e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_job_timeout(struct request *req) 36429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 36439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job = (void *) req->special; 36449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = job->shost; 36459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 36469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart unsigned long flags; 36479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err = 0, done = 0; 36489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->rport && job->rport->port_state == FC_PORTSTATE_BLOCKED) 36509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return BLK_EH_RESET_TIMER; 36519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irqsave(&job->job_lock, flags); 36539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->state_flags & FC_RQST_STATE_DONE) 36549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart done = 1; 36559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 36569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->ref_cnt++; 36579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irqrestore(&job->job_lock, flags); 36589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!done && i->f->bsg_timeout) { 36609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* call LLDD to abort the i/o as it has timed out */ 36619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = i->f->bsg_timeout(job); 3662b8f08645f80a0c93246f3539ce53d3cae6a91fa0Swen Schillig if (err == -EAGAIN) { 3663b8f08645f80a0c93246f3539ce53d3cae6a91fa0Swen Schillig job->ref_cnt--; 3664b8f08645f80a0c93246f3539ce53d3cae6a91fa0Swen Schillig return BLK_EH_RESET_TIMER; 3665b8f08645f80a0c93246f3539ce53d3cae6a91fa0Swen Schillig } else if (err) 36669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "ERROR: FC BSG request timeout - LLD " 36679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "abort failed with status %d\n", err); 36689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 36699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* the blk_end_sync_io() doesn't check the error */ 367147e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali if (done) 367247e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali return BLK_EH_NOT_HANDLED; 367347e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali else 367447e7e89ed029780adf2cc0cf506fcd4c2d5ca1e2Giridhar Malavali return BLK_EH_HANDLED; 36759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 36769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36779e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 36789e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_map_buffer(struct fc_bsg_buffer *buf, struct request *req) 36799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 36809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart size_t sz = (sizeof(struct scatterlist) * req->nr_phys_segments); 36819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(!req->nr_phys_segments); 36839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->sg_list = kzalloc(sz, GFP_KERNEL); 36859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!buf->sg_list) 36869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 36879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart sg_init_table(buf->sg_list, req->nr_phys_segments); 36889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->sg_cnt = blk_rq_map_sg(req->q, req, buf->sg_list); 36899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart buf->payload_len = blk_rq_bytes(req); 36909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 36919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 36929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 36949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 36959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_req_to_bsgjob - Allocate/create the fc_bsg_job structure for the 36969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * bsg request 36979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: SCSI Host corresponding to the bsg object 36989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: (optional) FC Remote Port corresponding to the bsg object 36999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @req: BSG request that needs a job structure 37009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 37019e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 37029e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_req_to_bsgjob(struct Scsi_Host *shost, struct fc_rport *rport, 37039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req) 37049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 37059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 37069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *rsp = req->next_rq; 37079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job; 37089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 37099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(req->special); 37119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job = kzalloc(sizeof(struct fc_bsg_job) + i->f->dd_bsg_size, 37139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart GFP_KERNEL); 37149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!job) 37159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 37169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* 37189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * Note: this is a bit silly. 37199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * The request gets formatted as a SGIO v4 ioctl request, which 37209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * then gets reformatted as a blk request, which then gets 37219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * reformatted as a fc bsg request. And on completion, we have 37229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * to wrap return results such that SGIO v4 thinks it was a scsi 37239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * status. I hope this was all worth it. 37249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 37259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->special = job; 37279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->shost = shost; 37289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->rport = rport; 37299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->req = req; 37309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (i->f->dd_bsg_size) 37319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dd_data = (void *)&job[1]; 37329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_init(&job->job_lock); 37339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->request = (struct fc_bsg_request *)req->cmd; 37349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->request_len = req->cmd_len; 37359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply = req->sense; 37369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = SCSI_SENSE_BUFFERSIZE; /* Size of sense buffer 37379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * allocated */ 37389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (req->bio) { 37399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_map_buffer(&job->request_payload, req); 37409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) 37419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto failjob_rls_job; 37429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rsp && rsp->bio) { 37449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_map_buffer(&job->reply_payload, rsp); 37459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) 37469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto failjob_rls_rqst_payload; 37479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 37489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->job_done = fc_bsg_jobdone; 37499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport) 37509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dev = &rport->dev; 37519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 37529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->dev = &shost->shost_gendev; 37539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart get_device(job->dev); /* take a reference for the request */ 37549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->ref_cnt = 1; 37569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 37589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37609e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfailjob_rls_rqst_payload: 37619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job->request_payload.sg_list); 37629e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfailjob_rls_job: 37639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart kfree(job); 37649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 37659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 37669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37689e4f5e29610162fd426366f3b29e3cc6e575b858James Smartenum fc_dispatch_result { 37699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_BREAK, /* on return, q is locked, break from q loop */ 37709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_LOCKED, /* on return, q is locked, continue on */ 37719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart FC_DISPATCH_UNLOCKED, /* on return, q is unlocked, continue on */ 37729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart}; 37739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 37769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_host_dispatch - process fc host bsg requests and dispatch to LLDD 37775415907af1f5ef80c95147bacbd321b0d4236dd5Randy Dunlap * @q: fc host request queue 37789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: scsi host rport attached to 37799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: bsg job to be processed 37809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 37819e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum fc_dispatch_result 37829e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_host_dispatch(struct request_queue *q, struct Scsi_Host *shost, 37839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job) 37849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 37859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 37869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int cmdlen = sizeof(uint32_t); /* start with length of msgcode */ 37879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 37889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* Validate the host command */ 37909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart switch (job->request->msgcode) { 37919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_ADD_RPORT: 37929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_add_rport); 37939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 37949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_DEL_RPORT: 37969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_del_rport); 37979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 37989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 37999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_ELS_NOLOGIN: 38009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_els); 38019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be a xmt and rcv payloads */ 38029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 38039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 38049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 38059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 38069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 38089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_CT: 38109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_ct); 38119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be xmt and rcv payloads */ 38129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 38139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 38149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 38159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 38169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 38189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_HST_VENDOR: 38209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_host_vendor); 38219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((shost->hostt->vendor_id == 0L) || 38229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (job->request->rqst_data.h_vendor.vendor_id != 38239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->hostt->vendor_id)) { 38249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ESRCH; 38259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 38269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 38289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart default: 38309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EBADR; 38319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 38329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we really have all the request data needed */ 38359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < cmdlen) { 38369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ENOMSG; 38379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_host_msg; 38389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 38399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = i->f->bsg_request(job); 38419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!ret) 38429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 38439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38449e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfail_host_msg: 38459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* return the errno failure code as the only status */ 38469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 384761ec33eb7d8e1e94a93a8243238dc5f9a183001aBrian King job->reply->reply_payload_rcv_len = 0; 38489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = ret; 38499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 38509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 38519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 38529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 38539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/* 38569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_goose_queue - restart rport queue in case it was stopped 38579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport to be restarted 38589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 38599e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 38609e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_goose_queue(struct fc_rport *rport) 38619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 38629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!rport->rqst_q) 38639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 38649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 3865c21e6beba8835d09bb80e34961430b13e60381c5Jens Axboe /* 3866c21e6beba8835d09bb80e34961430b13e60381c5Jens Axboe * This get/put dance makes no sense 3867c21e6beba8835d09bb80e34961430b13e60381c5Jens Axboe */ 38689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart get_device(&rport->dev); 3869c21e6beba8835d09bb80e34961430b13e60381c5Jens Axboe blk_run_queue_async(rport->rqst_q); 38709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(&rport->dev); 38719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 38729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 38749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rport_dispatch - process rport bsg requests and dispatch to LLDD 38755415907af1f5ef80c95147bacbd321b0d4236dd5Randy Dunlap * @q: rport request queue 38769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: scsi host rport attached to 38779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport request destined to 38789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @job: bsg job to be processed 38799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 38809e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic enum fc_dispatch_result 38819e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rport_dispatch(struct request_queue *q, struct Scsi_Host *shost, 38829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport, struct fc_bsg_job *job) 38839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 38849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 38859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int cmdlen = sizeof(uint32_t); /* start with length of msgcode */ 38869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int ret; 38879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* Validate the rport command */ 38899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart switch (job->request->msgcode) { 38909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_RPT_ELS: 38919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_rport_els); 38929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto check_bidi; 38939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 38949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart case FC_BSG_RPT_CT: 38959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart cmdlen += sizeof(struct fc_bsg_rport_ct); 38969e4f5e29610162fd426366f3b29e3cc6e575b858James Smartcheck_bidi: 38979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* there better be xmt and rcv payloads */ 38989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if ((!job->request_payload.payload_len) || 38999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart (!job->reply_payload.payload_len)) { 39009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EINVAL; 39019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 39029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 39049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart default: 39059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -EBADR; 39069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 39079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we really have all the request data needed */ 39109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < cmdlen) { 39119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = -ENOMSG; 39129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart goto fail_rport_msg; 39139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39149e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = i->f->bsg_request(job); 39169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!ret) 39179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 39189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39199e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfail_rport_msg: 39209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* return the errno failure code as the only status */ 39219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 392261ec33eb7d8e1e94a93a8243238dc5f9a183001aBrian King job->reply->reply_payload_rcv_len = 0; 39239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = ret; 39249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 39259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 39269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return FC_DISPATCH_UNLOCKED; 39279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 39289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 39319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_request_handler - generic handler for bsg requests 39329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: request queue to manage 39339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: Scsi_Host related to the bsg object 39349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: FC remote port related to the bsg object (optional) 39359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @dev: device structure for bsg object 39369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 39379e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 39389e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_request_handler(struct request_queue *q, struct Scsi_Host *shost, 39399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport, struct device *dev) 39409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 39419e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request *req; 39429e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_bsg_job *job; 39439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart enum fc_dispatch_result ret; 39449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!get_device(dev)) 39469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return; 39479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39487eaceaccab5f40bbfda044629a6298616aeaed50Jens Axboe while (1) { 39492bc1c59dbdefdb6f9767e06efb86bbdb2923a8beMike Christie if (rport && (rport->port_state == FC_PORTSTATE_BLOCKED) && 39502bc1c59dbdefdb6f9767e06efb86bbdb2923a8beMike Christie !(rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT)) 39512bc1c59dbdefdb6f9767e06efb86bbdb2923a8beMike Christie break; 39529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req = blk_fetch_request(q); 39549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!req) 39559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 39569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport && (rport->port_state != FC_PORTSTATE_ONLINE)) { 39589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->errors = -ENXIO; 39599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 3960d88a714bfefa7aed7b9cb6c3721707fcd056b472Sarang Radke blk_end_request_all(req, -ENXIO); 39619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 39629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 39639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 39669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_req_to_bsgjob(shost, rport, req); 39689e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret) { 39699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart req->errors = ret; 3970d88a714bfefa7aed7b9cb6c3721707fcd056b472Sarang Radke blk_end_request_all(req, ret); 39719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 39729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 39739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job = req->special; 39769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* check if we have the msgcode value at least */ 39789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (job->request_len < sizeof(uint32_t)) { 39799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart BUG_ON(job->reply_len < sizeof(uint32_t)); 398061ec33eb7d8e1e94a93a8243238dc5f9a183001aBrian King job->reply->reply_payload_rcv_len = 0; 39819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply->result = -ENOMSG; 39829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart job->reply_len = sizeof(uint32_t); 39839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_jobdone(job); 39849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 39859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart continue; 39869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 39879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* the dispatch routines will unlock the queue_lock */ 39899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (rport) 39909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_rport_dispatch(q, shost, rport, job); 39919e4f5e29610162fd426366f3b29e3cc6e575b858James Smart else 39929e4f5e29610162fd426366f3b29e3cc6e575b858James Smart ret = fc_bsg_host_dispatch(q, shost, job); 39939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* did dispatcher hit state that can't process any more */ 39959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret == FC_DISPATCH_BREAK) 39969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart break; 39979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 39989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart /* did dispatcher had released the lock */ 39999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (ret == FC_DISPATCH_UNLOCKED) 40009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 40019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 40029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_unlock_irq(q->queue_lock); 40049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart put_device(dev); 40059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart spin_lock_irq(q->queue_lock); 40069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 40079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 40109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_host_handler - handler for bsg requests for a fc host 40119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: fc host request queue 40129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 40139e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 40149e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_host_handler(struct request_queue *q) 40159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 40169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = q->queuedata; 40179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_request_handler(q, shost, NULL, &shost->shost_gendev); 40199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 40209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 40239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rport_handler - handler for bsg requests for a fc rport 40249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: rport request queue 40259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 40269e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 40279e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rport_handler(struct request_queue *q) 40289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 40299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_rport *rport = q->queuedata; 40309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct Scsi_Host *shost = rport_to_shost(rport); 40319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_bsg_request_handler(q, shost, rport, &rport->dev); 40339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 40349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40359e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40369e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 40379e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_hostadd - Create and add the bsg hooks so we can receive requests 40389e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: shost for fc_host 40399e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @fc_host: fc_host adding the structures to 40409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 40419e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 40429e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_hostadd(struct Scsi_Host *shost, struct fc_host_attrs *fc_host) 40439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 40449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *dev = &shost->shost_gendev; 40459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 40469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request_queue *q; 40479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 40483c559ea8fd003962d9a28c64b2dd5c6d83ca6edbJames Bottomley char bsg_name[20]; 40499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host->rqst_q = NULL; 40519e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40529e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!i->f->bsg_request) 40539e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOTSUPP; 40549e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40559e4f5e29610162fd426366f3b29e3cc6e575b858James Smart snprintf(bsg_name, sizeof(bsg_name), 40569e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "fc_host%d", shost->host_no); 40579e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40589e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q = __scsi_alloc_queue(shost, fc_bsg_host_handler); 40599e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!q) { 40609e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "fc_host%d: bsg interface failed to " 40619e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - no request queue\n", 40629e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->host_no); 40639e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 40649e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 40659e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40669e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q->queuedata = shost; 40679e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q); 4068b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_queue_softirq_done(q, fc_bsg_softirq_done); 40699e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timed_out(q, fc_bsg_job_timeout); 40709e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timeout(q, FC_DEFAULT_BSG_TIMEOUT); 40719e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40729e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = bsg_register_queue(q, dev, bsg_name, NULL); 40739e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err) { 40749e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "fc_host%d: bsg interface failed to " 40759e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - register queue\n", 40769e4f5e29610162fd426366f3b29e3cc6e575b858James Smart shost->host_no); 40779e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 40789e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return err; 40799e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 40809e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40819e4f5e29610162fd426366f3b29e3cc6e575b858James Smart fc_host->rqst_q = q; 40829e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 40839e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 40849e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40859e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40869e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 40879e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_rportadd - Create and add the bsg hooks so we can receive requests 40889e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @shost: shost that rport is attached to 40899e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @rport: rport that the bsg hooks are being attached to 40909e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 40919e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic int 40929e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_rportadd(struct Scsi_Host *shost, struct fc_rport *rport) 40939e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 40949e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct device *dev = &rport->dev; 40959e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct fc_internal *i = to_fc_internal(shost->transportt); 40969e4f5e29610162fd426366f3b29e3cc6e575b858James Smart struct request_queue *q; 40979e4f5e29610162fd426366f3b29e3cc6e575b858James Smart int err; 40989e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 40999e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rport->rqst_q = NULL; 41009e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 41019e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!i->f->bsg_request) 41029e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOTSUPP; 41039e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 41049e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q = __scsi_alloc_queue(shost, fc_bsg_rport_handler); 41059e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (!q) { 41069e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "%s: bsg interface failed to " 41079e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - no request queue\n", 41089e4f5e29610162fd426366f3b29e3cc6e575b858James Smart dev->kobj.name); 41099e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return -ENOMEM; 41109e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 41119e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 41129e4f5e29610162fd426366f3b29e3cc6e575b858James Smart q->queuedata = rport; 41139e4f5e29610162fd426366f3b29e3cc6e575b858James Smart queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q); 4114b5c6f77680f4ff1775838fcedfdd6026bf5ad777Giridhar Malavali blk_queue_softirq_done(q, fc_bsg_softirq_done); 41159e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timed_out(q, fc_bsg_job_timeout); 41169e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_queue_rq_timeout(q, BLK_DEFAULT_SG_TIMEOUT); 41179e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 41189e4f5e29610162fd426366f3b29e3cc6e575b858James Smart err = bsg_register_queue(q, dev, NULL, NULL); 41199e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (err) { 41209e4f5e29610162fd426366f3b29e3cc6e575b858James Smart printk(KERN_ERR "%s: bsg interface failed to " 41219e4f5e29610162fd426366f3b29e3cc6e575b858James Smart "initialize - register queue\n", 41229e4f5e29610162fd426366f3b29e3cc6e575b858James Smart dev->kobj.name); 41239e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 41249e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return err; 41259e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 41269e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 41279e4f5e29610162fd426366f3b29e3cc6e575b858James Smart rport->rqst_q = q; 41289e4f5e29610162fd426366f3b29e3cc6e575b858James Smart return 0; 41299e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 41309e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 41319e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 41329e4f5e29610162fd426366f3b29e3cc6e575b858James Smart/** 41339e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * fc_bsg_remove - Deletes the bsg hooks on fchosts/rports 41349e4f5e29610162fd426366f3b29e3cc6e575b858James Smart * @q: the request_queue that is to be torn down. 413578d16341facf829a71b6f7c68ec5511b9c168060James Smart * 413678d16341facf829a71b6f7c68ec5511b9c168060James Smart * Notes: 413778d16341facf829a71b6f7c68ec5511b9c168060James Smart * Before unregistering the queue empty any requests that are blocked 413878d16341facf829a71b6f7c68ec5511b9c168060James Smart * 413978d16341facf829a71b6f7c68ec5511b9c168060James Smart * 41409e4f5e29610162fd426366f3b29e3cc6e575b858James Smart */ 41419e4f5e29610162fd426366f3b29e3cc6e575b858James Smartstatic void 41429e4f5e29610162fd426366f3b29e3cc6e575b858James Smartfc_bsg_remove(struct request_queue *q) 41439e4f5e29610162fd426366f3b29e3cc6e575b858James Smart{ 41449e4f5e29610162fd426366f3b29e3cc6e575b858James Smart if (q) { 41459e4f5e29610162fd426366f3b29e3cc6e575b858James Smart bsg_unregister_queue(q); 41469e4f5e29610162fd426366f3b29e3cc6e575b858James Smart blk_cleanup_queue(q); 41479e4f5e29610162fd426366f3b29e3cc6e575b858James Smart } 41489e4f5e29610162fd426366f3b29e3cc6e575b858James Smart} 41499e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 41509e4f5e29610162fd426366f3b29e3cc6e575b858James Smart 41519ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames Smart/* Original Author: Martin Hicks */ 41529ef3e4a4527e1f65b8776287c6d4fd1fca5ba98fJames SmartMODULE_AUTHOR("James Smart"); 41531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("FC Transport Attributes"); 41541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 41551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 41561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(fc_transport_init); 41571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(fc_transport_exit); 4158