scsi_transport_fc.c revision d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccd
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 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 * 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2004-2005 James Smart, Emulex Corporation 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Rewrite for host, target, device, and remote port attributes, 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * statistics, and service functions... 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_device.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_host.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_transport_fc.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "scsi_priv.h" 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_PRINTK(x, l, f, a...) printk(l "scsi(%d:%d:%d:%d): " f, (x)->host->host_no, (x)->channel, (x)->id, (x)->lun , ##a) 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Redefine so that we can have same named attributes in the 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sdev/starget/host objects. 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_CLASS_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \ 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct class_device_attribute class_device_attr_##_prefix##_##_name = \ 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ATTR(_name,_mode,_show,_store) 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_enum_name_search(title, table_type, table) \ 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const char *get_fc_##title##_name(enum table_type table_key) \ 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name = NULL; \ 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < sizeof(table)/sizeof(table[0]); i++) { \ 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (table[i].value == table_key) { \ 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = table[i].name; \ 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; \ 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return name; \ 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_enum_name_match(title, table_type, table) \ 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int get_fc_##title##_match(const char *table_key, \ 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum table_type *value) \ 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < sizeof(table)/sizeof(table[0]); i++) { \ 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(table_key, table[i].name, \ 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds table[i].matchlen) == 0) { \ 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *value = table[i].value; \ 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* success */ \ 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; /* failure */ \ 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_port_type values to ascii string name */ 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_port_type value; 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_type_names[] = { 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_UNKNOWN, "Unknown" }, 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_OTHER, "Other" }, 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NOTPRESENT, "Not Present" }, 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NPORT, "NPort (fabric via point-to-point)" }, 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_NLPORT, "NLPort (fabric via loop)" }, 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_LPORT, "LPort (private loop)" }, 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTTYPE_PTP, "Point-To-Point (direct nport connection" }, 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(port_type, fc_port_type, fc_port_type_names) 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_PORTTYPE_MAX_NAMELEN 50 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_port_state values to ascii string name */ 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_port_state value; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_state_names[] = { 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_UNKNOWN, "Unknown" }, 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_NOTPRESENT, "Not Present" }, 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_ONLINE, "Online" }, 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_OFFLINE, "Offline" }, 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_BLOCKED, "Blocked" }, 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_BYPASSED, "Bypassed" }, 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_DIAGNOSTICS, "Diagnostics" }, 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_LINKDOWN, "Linkdown" }, 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_ERROR, "Error" }, 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSTATE_LOOPBACK, "Loopback" }, 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(port_state, fc_port_state, fc_port_state_names) 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_PORTSTATE_MAX_NAMELEN 20 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert fc_tgtid_binding_type values to ascii string name */ 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_tgtid_binding_type value; 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int matchlen; 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_tgtid_binding_type_names[] = { 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_NONE, "none", 4 }, 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_WWPN, "wwpn (World Wide Port Name)", 4 }, 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_WWNN, "wwnn (World Wide Node Name)", 4 }, 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_TGTID_BIND_BY_ID, "port_id (FC Address)", 7 }, 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_search(tgtid_bind_type, fc_tgtid_binding_type, 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_tgtid_binding_type_names) 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_enum_name_match(tgtid_bind_type, fc_tgtid_binding_type, 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_tgtid_binding_type_names) 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_BINDTYPE_MAX_NAMELEN 30 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_bitfield_name_search(title, table) \ 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsget_fc_##title##_names(u32 table_key, char *buf) \ 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *prefix = ""; \ 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssize_t len = 0; \ 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; \ 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < sizeof(table)/sizeof(table[0]); i++) { \ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (table[i].value & table_key) { \ 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "%s%s", \ 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prefix, table[i].name); \ 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prefix = ", "; \ 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "\n"); \ 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; \ 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert FC_COS bit values to ascii string name */ 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_cos_names[] = { 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS1, "Class 1" }, 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS2, "Class 2" }, 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS3, "Class 3" }, 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS4, "Class 4" }, 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_COS_CLASS6, "Class 6" }, 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_bitfield_name_search(cos, fc_cos_names) 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert FC_PORTSPEED bit values to ascii string name */ 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_port_speed_names[] = { 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_1GBIT, "1 Gbit" }, 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_2GBIT, "2 Gbit" }, 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_4GBIT, "4 Gbit" }, 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_10GBIT, "10 Gbit" }, 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_PORTSPEED_NOT_NEGOTIATED, "Not Negotiated" }, 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_bitfield_name_search(port_speed, fc_port_speed_names) 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_fc4s (char *buf, u8 *fc4_list) 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, len=0; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < FC_FC4_LIST_SIZE; i++, fc4_list++) 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len , "0x%02x ", *fc4_list); 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds len += sprintf(buf + len, "\n"); 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return len; 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Convert FC_RPORT_ROLE bit values to ascii string name */ 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct { 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 value; 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} fc_remote_port_role_names[] = { 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_RPORT_ROLE_FCP_TARGET, "FCP Target" }, 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_RPORT_ROLE_FCP_INITIATOR, "FCP Initiator" }, 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { FC_RPORT_ROLE_IP_PORT, "IP Port" }, 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_bitfield_name_search(remote_port_roles, fc_remote_port_role_names) 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Define roles that are specific to port_id. Values are relative to ROLE_MASK. 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_WELLKNOWN_PORTID_MASK 0xfffff0 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_WELLKNOWN_ROLE_MASK 0x00000f 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FPORT_PORTID 0x00000e 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_FABCTLR_PORTID 0x00000d 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_DIRSRVR_PORTID 0x00000c 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_TIMESRVR_PORTID 0x00000b 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_MGMTSRVR_PORTID 0x00000a 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fc_timeout_blocked_rport(void *data); 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fc_scsi_scan_rport(void *data); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fc_rport_terminate(struct fc_rport *rport); 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Attribute counts pre object type... 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Increase these values if you add attributes 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_STARGET_NUM_ATTRS 3 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_RPORT_NUM_ATTRS 9 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FC_HOST_NUM_ATTRS 15 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fc_internal { 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_transport_template t; 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_function_template *f; 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For attributes : each object has : 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * An array of the actual attributes structures 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * An array of null-terminated pointers to the attribute 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * structures - used for mid-layer interaction. 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The attribute containers for the starget and host are are 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * part of the midlayer. As the remote port is specific to the 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc transport, we must provide the attribute container. 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct class_device_attribute private_starget_attrs[ 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FC_STARGET_NUM_ATTRS]; 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct class_device_attribute *starget_attrs[FC_STARGET_NUM_ATTRS + 1]; 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct class_device_attribute private_host_attrs[FC_HOST_NUM_ATTRS]; 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct class_device_attribute *host_attrs[FC_HOST_NUM_ATTRS + 1]; 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct transport_container rport_attr_cont; 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct class_device_attribute private_rport_attrs[FC_RPORT_NUM_ATTRS]; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct class_device_attribute *rport_attrs[FC_RPORT_NUM_ATTRS + 1]; 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define to_fc_internal(tmpl) container_of(tmpl, struct fc_internal, t) 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 255d0a7e574007fd547d72ec693bfa35778623d0738James Bottomleystatic int fc_target_setup(struct transport_container *tc, struct device *dev, 256d0a7e574007fd547d72ec693bfa35778623d0738James Bottomley struct class_device *cdev) 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_target *starget = to_scsi_target(dev); 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = starget_to_rport(starget); 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if parent is remote port, use values from remote port. 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Otherwise, this host uses the fc_transport, but not the 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * remote port interface. As such, initialize to known non-values. 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport) { 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_node_name(starget) = rport->node_name; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_name(starget) = rport->port_name; 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_id(starget) = rport->port_id; 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_node_name(starget) = -1; 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_name(starget) = -1; 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_port_id(starget) = -1; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_transport_class, 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_transport", 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_target_setup, 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 285d0a7e574007fd547d72ec693bfa35778623d0738James Bottomleystatic int fc_host_setup(struct transport_container *tc, struct device *dev, 286d0a7e574007fd547d72ec693bfa35778623d0738James Bottomley struct class_device *cdev) 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = dev_to_shost(dev); 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set default values easily detected by the midlayer as 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * failure cases. The scsi lldd is responsible for initializing 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * all transport attributes to valid values per host. 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_node_name(shost) = -1; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_port_name(shost) = -1; 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_supported_classes(shost) = FC_COS_UNSPECIFIED; 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(fc_host_supported_fc4s(shost), 0, 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(fc_host_supported_fc4s(shost))); 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(fc_host_symbolic_name(shost), 0, 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(fc_host_symbolic_name(shost))); 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_supported_speeds(shost) = FC_PORTSPEED_UNKNOWN; 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_maxframe_size(shost) = -1; 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(fc_host_serial_number(shost), 0, 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(fc_host_serial_number(shost))); 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_port_id(shost) = -1; 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(fc_host_active_fc4s(shost), 0, 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(fc_host_active_fc4s(shost))); 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_fabric_name(shost) = -1; 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_tgtid_bind_type(shost) = FC_TGTID_BIND_BY_WWPN; 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds INIT_LIST_HEAD(&fc_host_rports(shost)); 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds INIT_LIST_HEAD(&fc_host_rport_bindings(shost)); 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_next_rport_number(shost) = 0; 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_next_target_id(shost) = 0; 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_host_class, 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_host", 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_setup, 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup and Remove actions for remote ports are handled 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in the service functions below. 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic DECLARE_TRANSPORT_CLASS(fc_rport_class, 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "fc_remote_ports", 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL, 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL); 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Module Parameters 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * dev_loss_tmo: the default number of seconds that the FC transport 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * should insulate the loss of a remote port. 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The maximum will be capped by the value of SCSI_DEVICE_BLOCK_MAX_TIMEOUT. 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic unsigned int fc_dev_loss_tmo = SCSI_DEVICE_BLOCK_MAX_TIMEOUT; 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param_named(dev_loss_tmo, fc_dev_loss_tmo, int, S_IRUGO|S_IWUSR); 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_PARM_DESC(dev_loss_tmo, 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Maximum number of seconds that the FC transport should" 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " insulate the loss of a remote port. Once this value is" 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " exceeded, the scsi target is removed. Value should be" 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds " between 1 and SCSI_DEVICE_BLOCK_MAX_TIMEOUT."); 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic __init int fc_transport_init(void) 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error = transport_class_register(&fc_host_class); 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = transport_class_register(&fc_rport_class); 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return transport_class_register(&fc_transport_class); 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit fc_transport_exit(void) 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_transport_class); 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_rport_class); 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_class_unregister(&fc_host_class); 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FC Remote Port Attribute Management 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_show_function(field, format_string, sz, cast) \ 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_rport_##field (struct class_device *cdev, char *buf) \ 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = transport_class_to_rport(cdev); \ 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); \ 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_rport_##field) \ 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_rport_##field(rport); \ 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast rport->field); \ 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_store_function(field) \ 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstore_fc_rport_##field(struct class_device *cdev, const char *buf, \ 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t count) \ 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; \ 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = transport_class_to_rport(cdev); \ 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); \ 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = simple_strtoul(buf, NULL, 0); \ 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->set_rport_##field(rport, val); \ 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rd_attr(field, format_string, sz) \ 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, ) \ 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(rport, field, S_IRUGO, \ 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rd_attr_cast(field, format_string, sz, cast) \ 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, (cast)) \ 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(rport, field, S_IRUGO, \ 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_rport_rw_attr(field, format_string, sz) \ 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_show_function(field, format_string, sz, ) \ 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_store_function(field) \ 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(rport, field, S_IRUGO | S_IWUSR, \ 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, \ 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_rport_##field) 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_show_function(field, format_string, sz, cast) \ 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_rport_##field (struct class_device *cdev, char *buf) \ 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = transport_class_to_rport(cdev); \ 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast rport->field); \ 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_attr(field, format_string, sz) \ 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_rport_show_function(field, format_string, sz, ) \ 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(rport, field, S_IRUGO, \ 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_attr_cast(field, format_string, sz, cast) \ 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_rport_show_function(field, format_string, sz, (cast)) \ 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(rport, field, S_IRUGO, \ 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##field, NULL) 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_rport_rd_enum_attr(title, maxlen) \ 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_rport_##title (struct class_device *cdev, char *buf) \ 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = transport_class_to_rport(cdev); \ 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; \ 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_##title##_name(rport->title); \ 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) \ 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; \ 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, maxlen, "%s\n", name); \ 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(rport, title, S_IRUGO, \ 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_##title, NULL) 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_RPORT_ATTRIBUTE_RD(field) \ 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count] = class_device_attr_rport_##field; \ 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_rport_##field) \ 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(field) \ 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count] = class_device_attr_rport_##field; \ 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_RPORT_ATTRIBUTE_RW(field) \ 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count] = class_device_attr_rport_##field; \ 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_rport_##field) { \ 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].attr.mode = S_IRUGO; \ 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_rport_attrs[count].store = NULL; \ 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = &i->private_rport_attrs[count]; \ 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_rport_##field) \ 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The FC Transport Remote Port Attributes: */ 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Fixed Remote Port Attributes */ 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(maxframe_size, "%u bytes\n", 20); 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_rport_supported_classes (struct class_device *cdev, char *buf) 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = transport_class_to_rport(cdev); 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->supported_classes == FC_COS_UNSPECIFIED) 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unspecified\n"); 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_cos_names(rport->supported_classes, buf); 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(rport, supported_classes, S_IRUGO, 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_supported_classes, NULL); 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Dynamic Remote Port Attributes */ 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_rport_rw_attr(dev_loss_tmo, "%d\n", 20); 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Private Remote Port Attributes */ 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(port_id, "0x%06x\n", 20); 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_rport_roles (struct class_device *cdev, char *buf) 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = transport_class_to_rport(cdev); 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* identify any roles that are port_id specific */ 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((rport->port_id != -1) && 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (rport->port_id & FC_WELLKNOWN_PORTID_MASK) == 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds FC_WELLKNOWN_PORTID_MASK) { 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (rport->port_id & FC_WELLKNOWN_ROLE_MASK) { 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_FPORT_PORTID: 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Fabric Port\n"); 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_FABCTLR_PORTID: 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Fabric Controller\n"); 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_DIRSRVR_PORTID: 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Directory Server\n"); 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TIMESRVR_PORTID: 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Time Server\n"); 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_MGMTSRVR_PORTID: 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Management Server\n"); 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 30, "Unknown Fabric Entity\n"); 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->roles == FC_RPORT_ROLE_UNKNOWN) 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_remote_port_roles_names(rport->roles, buf); 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(rport, roles, S_IRUGO, 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_rport_roles, NULL); 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_rport_rd_attr(scsi_target_id, "%d\n", 20); 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FC SCSI Target Attribute Management 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: in the target show function we recognize when the remote 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * port is in the heirarchy and do not allow the driver to get 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * involved in sysfs functions. The driver only gets involved if 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it's the "old" style that doesn't use rports. 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_show_function(field, format_string, sz, cast) \ 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_starget_##field (struct class_device *cdev, char *buf) \ 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct scsi_target *starget = transport_class_to_starget(cdev); \ 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); \ 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = starget_to_rport(starget); \ 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport) \ 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_##field(starget) = rport->field; \ 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (i->f->get_starget_##field) \ 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_starget_##field(starget); \ 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, \ 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cast fc_starget_##field(starget)); \ 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_rd_attr(field, format_string, sz) \ 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_show_function(field, format_string, sz, ) \ 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(starget, field, S_IRUGO, \ 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_starget_##field, NULL) 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_starget_rd_attr_cast(field, format_string, sz, cast) \ 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_starget_show_function(field, format_string, sz, (cast)) \ 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(starget, field, S_IRUGO, \ 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_starget_##field, NULL) 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_STARGET_ATTRIBUTE_RD(field) \ 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count] = class_device_attr_starget_##field; \ 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].attr.mode = S_IRUGO; \ 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].store = NULL; \ 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = &i->private_starget_attrs[count]; \ 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_starget_##field) \ 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_STARGET_ATTRIBUTE_RW(field) \ 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count] = class_device_attr_starget_##field; \ 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_starget_##field) { \ 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].attr.mode = S_IRUGO; \ 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_starget_attrs[count].store = NULL; \ 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = &i->private_starget_attrs[count]; \ 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_starget_##field) \ 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* The FC Transport SCSI Target Attributes: */ 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_starget_rd_attr(port_id, "0x%06x\n", 20); 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Attribute Management 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_show_function(field, format_string, sz, cast) \ 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_host_##field (struct class_device *cdev, char *buf) \ 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); \ 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_##field) \ 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_##field(shost); \ 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_store_function(field) \ 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstore_fc_host_##field(struct class_device *cdev, const char *buf, \ 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t count) \ 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val; \ 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); \ 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds \ 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = simple_strtoul(buf, NULL, 0); \ 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->set_host_##field(shost, val); \ 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; \ 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_attr(field, format_string, sz) \ 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, ) \ 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, field, S_IRUGO, \ 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_attr_cast(field, format_string, sz, cast) \ 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, (cast)) \ 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, field, S_IRUGO, \ 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rw_attr(field, format_string, sz) \ 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_show_function(field, format_string, sz, ) \ 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_store_function(field) \ 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, field, S_IRUGO | S_IWUSR, \ 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, \ 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_host_##field) 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_rd_enum_attr(title, maxlen) \ 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_host_##title (struct class_device *cdev, char *buf) \ 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); \ 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); \ 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; \ 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_##title) \ 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_##title(shost); \ 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_##title##_name(fc_host_##title(shost)); \ 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) \ 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; \ 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, maxlen, "%s\n", name); \ 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, title, S_IRUGO, show_fc_host_##title, NULL) 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_HOST_ATTRIBUTE_RD(field) \ 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count] = class_device_attr_host_##field; \ 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_host_##field) \ 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_HOST_ATTRIBUTE_RW(field) \ 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count] = class_device_attr_host_##field; \ 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!i->f->set_host_##field) { \ 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } \ 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->show_host_##field) \ 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_show_function(field, format_string, sz, cast) \ 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t \ 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_host_##field (struct class_device *cdev, char *buf) \ 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); \ 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, sz, format_string, cast fc_host_##field(shost)); \ 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_rd_attr(field, format_string, sz) \ 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_host_show_function(field, format_string, sz, ) \ 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, field, S_IRUGO, \ 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_private_host_rd_attr_cast(field, format_string, sz, cast) \ 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_private_host_show_function(field, format_string, sz, (cast)) \ 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, field, S_IRUGO, \ 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_##field, NULL) 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_HOST_ATTRIBUTE_RD(field) \ 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count] = class_device_attr_host_##field; \ 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].attr.mode = S_IRUGO; \ 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count].store = NULL; \ 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SETUP_PRIVATE_HOST_ATTRIBUTE_RW(field) \ 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->private_host_attrs[count] = class_device_attr_host_##field; \ 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = &i->private_host_attrs[count]; \ 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count++ 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Fixed Host Attributes */ 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_host_supported_classes (struct class_device *cdev, char *buf) 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_supported_classes(shost) == FC_COS_UNSPECIFIED) 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unspecified\n"); 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_cos_names(fc_host_supported_classes(shost), buf); 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, supported_classes, S_IRUGO, 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_classes, NULL); 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_host_supported_fc4s (struct class_device *cdev, char *buf) 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ssize_t)show_fc_fc4s(buf, fc_host_supported_fc4s(shost)); 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, supported_fc4s, S_IRUGO, 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_fc4s, NULL); 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_host_supported_speeds (struct class_device *cdev, char *buf) 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_supported_speeds(shost) == FC_PORTSPEED_UNKNOWN) 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_port_speed_names(fc_host_supported_speeds(shost), buf); 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, supported_speeds, S_IRUGO, 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_supported_speeds, NULL); 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr_cast(node_name, "0x%llx\n", 20, unsigned long long); 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr_cast(port_name, "0x%llx\n", 20, unsigned long long); 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr(symbolic_name, "%s\n", (FC_SYMBOLIC_NAME_SIZE +1)); 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr(maxframe_size, "%u bytes\n", 20); 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_private_host_rd_attr(serial_number, "%s\n", (FC_SERIAL_NUMBER_SIZE +1)); 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Dynamic Host Attributes */ 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_host_active_fc4s (struct class_device *cdev, char *buf) 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_active_fc4s) 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_active_fc4s(shost); 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (ssize_t)show_fc_fc4s(buf, fc_host_active_fc4s(shost)); 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, active_fc4s, S_IRUGO, 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_active_fc4s, NULL); 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_host_speed (struct class_device *cdev, char *buf) 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_host_speed) 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->get_host_speed(shost); 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fc_host_speed(shost) == FC_PORTSPEED_UNKNOWN) 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, 20, "unknown\n"); 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return get_fc_port_speed_names(fc_host_speed(shost), buf); 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, speed, S_IRUGO, 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_host_speed, NULL); 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_attr(port_id, "0x%06x\n", 20); 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_enum_attr(port_type, FC_PORTTYPE_MAX_NAMELEN); 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_enum_attr(port_state, FC_PORTSTATE_MAX_NAMELEN); 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_rd_attr_cast(fabric_name, "0x%llx\n", 20, unsigned long long); 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Private Host Attributes */ 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsshow_fc_private_host_tgtid_bind_type(struct class_device *cdev, char *buf) 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *name; 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name = get_fc_tgtid_bind_type_name(fc_host_tgtid_bind_type(shost)); 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!name) 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return snprintf(buf, FC_BINDTYPE_MAX_NAMELEN, "%s\n", name); 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 822d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com#define get_list_head_entry(pos, head, member) \ 823d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com pos = list_entry((head)->next, typeof(*pos), member) 824d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstore_fc_private_host_tgtid_bind_type(struct class_device *cdev, 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *buf, size_t count) 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); 830d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com struct fc_rport *rport; 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum fc_tgtid_binding_type val; 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (get_fc_tgtid_bind_type_match(buf, &val)) 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* if changing bind type, purge all unused consistent bindings */ 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val != fc_host_tgtid_bind_type(shost)) { 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 840d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com while (!list_empty(&fc_host_rport_bindings(shost))) { 841d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com get_list_head_entry(rport, 842d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com &fc_host_rport_bindings(shost), peers); 843d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com spin_unlock_irqrestore(shost->host_lock, flags); 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_terminate(rport); 845d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com spin_lock_irqsave(shost->host_lock, flags); 846d16794f6ac8d9b50f62e02a6e6175ae1a30d0ccdJames.Smart@Emulex.Com } 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_host_tgtid_bind_type(shost) = val; 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, tgtid_bind_type, S_IRUGO | S_IWUSR, 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds show_fc_private_host_tgtid_bind_type, 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds store_fc_private_host_tgtid_bind_type); 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Host Statistics Management 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Show a given an attribute in the statistics group */ 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_stat_show(const struct class_device *cdev, char *buf, unsigned long offset) 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_host_statistics *stats; 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ssize_t ret = -ENOENT; 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offset > sizeof(struct fc_host_statistics) || 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offset % sizeof(u64) != 0) 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds WARN_ON(1); 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->get_fc_host_stats) { 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds stats = (i->f->get_fc_host_stats)(shost); 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (stats) 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = snprintf(buf, 20, "0x%llx\n", 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long long)*(u64 *)(((u8 *) stats) + offset)); 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* generate a read-only statistics attribute */ 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define fc_host_statistic(name) \ 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t show_fcstat_##name(struct class_device *cd, char *buf) \ 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ \ 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return fc_stat_show(cd, buf, \ 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds offsetof(struct fc_host_statistics, name)); \ 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} \ 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, name, S_IRUGO, show_fcstat_##name, NULL) 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(seconds_since_last_reset); 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(tx_frames); 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(tx_words); 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(rx_frames); 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(rx_words); 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(lip_count); 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(nos_count); 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(error_frames); 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(dumped_frames); 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(link_failure_count); 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(loss_of_sync_count); 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(loss_of_signal_count); 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(prim_seq_protocol_err_count); 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(invalid_tx_word_count); 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(invalid_crc_count); 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_input_requests); 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_output_requests); 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_control_requests); 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_input_megabytes); 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_host_statistic(fcp_output_megabytes); 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ssize_t 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_reset_statistics(struct class_device *cdev, const char *buf, 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t count) 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = transport_class_to_shost(cdev); 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(shost->transportt); 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* ignore any data value written to the attribute */ 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i->f->reset_fc_host_stats) { 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f->reset_fc_host_stats(shost); 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOENT; 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic FC_CLASS_DEVICE_ATTR(host, reset_statistics, S_IWUSR, NULL, 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_reset_statistics); 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct attribute *fc_statistics_attrs[] = { 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_seconds_since_last_reset.attr, 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_tx_frames.attr, 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_tx_words.attr, 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_rx_frames.attr, 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_rx_words.attr, 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_lip_count.attr, 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_nos_count.attr, 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_error_frames.attr, 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_dumped_frames.attr, 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_link_failure_count.attr, 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_loss_of_sync_count.attr, 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_loss_of_signal_count.attr, 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_prim_seq_protocol_err_count.attr, 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_invalid_tx_word_count.attr, 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_invalid_crc_count.attr, 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_fcp_input_requests.attr, 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_fcp_output_requests.attr, 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_fcp_control_requests.attr, 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_fcp_input_megabytes.attr, 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_fcp_output_megabytes.attr, 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &class_device_attr_host_reset_statistics.attr, 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds NULL 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct attribute_group fc_statistics_group = { 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "statistics", 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .attrs = fc_statistics_attrs, 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_host_match(struct attribute_container *cont, 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_host_device(dev)) 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev); 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t.host_attrs.ac == cont; 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_target_match(struct attribute_container *cont, 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_target_device(dev)) 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev->parent); 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t.target_attrs.ac == cont; 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void fc_rport_dev_release(struct device *dev) 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = dev_to_rport(dev); 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(dev->parent); 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(rport); 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint scsi_is_fc_rport(const struct device *dev) 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return dev->release == fc_rport_dev_release; 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(scsi_is_fc_rport); 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int fc_rport_match(struct attribute_container *cont, 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev) 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost; 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i; 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!scsi_is_fc_rport(dev)) 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost = dev_to_shost(dev->parent); 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!shost->transportt || shost->transportt->host_attrs.ac.class 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds != &fc_host_class.class) 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = to_fc_internal(shost->transportt); 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->rport_attr_cont.ac == cont; 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10345c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 10355c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com/* 10365c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com * Must be called with shost->host_lock held 10375c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com */ 10385c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Comstatic struct device *fc_target_parent(struct Scsi_Host *shost, 10395c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com int channel, uint id) 10405c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com{ 10415c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com struct fc_rport *rport; 10425c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 10435c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com list_for_each_entry(rport, &fc_host_rports(shost), peers) 10445c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com if ((rport->channel == channel) && 10455c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com (rport->scsi_target_id == id)) 10465c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com return &rport->dev; 10475c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 10485c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com return NULL; 10495c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com} 10505c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct scsi_transport_template * 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_attach_transport(struct fc_function_template *ft) 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = kmalloc(sizeof(struct fc_internal), 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds GFP_KERNEL); 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int count; 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!i)) 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(i, 0, sizeof(struct fc_internal)); 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.attrs = &i->starget_attrs[0]; 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.class = &fc_transport_class.class; 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_attrs.ac.match = fc_target_match; 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.target_size = sizeof(struct fc_starget_attrs); 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->t.target_attrs); 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.attrs = &i->host_attrs[0]; 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.class = &fc_host_class.class; 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.ac.match = fc_host_match; 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_size = sizeof(struct fc_host_attrs); 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ft->get_fc_host_stats) 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.host_attrs.statistics = &fc_statistics_group; 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->t.host_attrs); 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.attrs = &i->rport_attrs[0]; 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.class = &fc_rport_class.class; 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attr_cont.ac.match = fc_rport_match; 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_register(&i->rport_attr_cont); 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->f = ft; 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Transport uses the shost workq for scsi scanning */ 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->t.create_work_queue = 1; 10865c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com 10875c44cd2afad3f7b015542187e147a820600172f1James.Smart@Emulex.Com i->t.target_parent = fc_target_parent; 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup SCSI Target Attributes. 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = 0; 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(node_name); 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(port_name); 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_STARGET_ATTRIBUTE_RD(port_id); 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_STARGET_NUM_ATTRS); 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->starget_attrs[count] = NULL; 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup SCSI Host Attributes. 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count=0; 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(node_name); 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_name); 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_classes); 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_fc4s); 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(symbolic_name); 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(supported_speeds); 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(maxframe_size); 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(serial_number); 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_id); 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_type); 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(port_state); 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(active_fc4s); 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(speed); 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_HOST_ATTRIBUTE_RD(fabric_name); 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Transport-managed attributes */ 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_HOST_ATTRIBUTE_RW(tgtid_bind_type); 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_HOST_NUM_ATTRS); 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->host_attrs[count] = NULL; 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup Remote Port Attributes. 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count=0; 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RD(maxframe_size); 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RD(supported_classes); 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_RPORT_ATTRIBUTE_RW(dev_loss_tmo); 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(node_name); 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_name); 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_id); 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(roles); 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_state); 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(scsi_target_id); 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(count > FC_RPORT_NUM_ATTRS); 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i->rport_attrs[count] = NULL; 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return &i->t; 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_attach_transport); 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid fc_release_transport(struct scsi_transport_template *t) 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *i = to_fc_internal(t); 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->t.target_attrs); 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->t.host_attrs); 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_container_unregister(&i->rport_attr_cont); 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(i); 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_release_transport); 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_remove_host - called to terminate any fc_transport-related elements 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for a scsi host. 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: remote port to be unblocked. 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is expected to be called immediately preceeding the 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a driver's call to scsi_remove_host(). 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * WARNING: A driver utilizing the fc_transport, which fails to call 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this routine prior to scsi_remote_host(), will leave dangling 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * objects in /sys/class/fc_remote_ports. Access to any of these 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * objects can result in a system crash !!! 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds **/ 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remove_host(struct Scsi_Host *shost) 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport, *next_rport; 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Remove any remote ports */ 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry_safe(rport, next_rport, 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &fc_host_rports(shost), peers) 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_terminate(rport); 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry_safe(rport, next_rport, 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &fc_host_rport_bindings(shost), peers) 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_terminate(rport); 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remove_host); 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_rport_create - allocates and creates a remote FC port. 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @shost: scsi host the remote port is connected to. 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @channel: Channel on shost port connected to. 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ids: The world wide names, fc address, and FC4 port 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * roles for the remote port. 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Allocates and creates the remoter port structure, including the 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * class and sysfs creation. 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds **/ 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fc_rport * 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_rport_create(struct Scsi_Host *shost, int channel, 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport_identifiers *ids) 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_host_attrs *fc_host = 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (struct fc_host_attrs *)shost->shost_data; 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_internal *fci = to_fc_internal(shost->transportt); 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport; 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev; 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t size; 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size = (sizeof(struct fc_rport) + fci->f->dd_fcrport_size); 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport = kmalloc(size, GFP_KERNEL); 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (unlikely(!rport)) { 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__); 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(rport, 0, size); 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->maxframe_size = -1; 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->supported_classes = FC_COS_UNSPECIFIED; 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->dev_loss_tmo = fc_dev_loss_tmo; 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->node_name, &ids->node_name, sizeof(rport->node_name)); 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->port_name, &ids->port_name, sizeof(rport->port_name)); 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = ids->port_id; 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = ids->roles; 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_ONLINE; 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (fci->f->dd_fcrport_size) 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->dd_data = &rport[1]; 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->channel = channel; 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds INIT_WORK(&rport->dev_loss_work, fc_timeout_blocked_rport, rport); 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds INIT_WORK(&rport->scan_work, fc_scsi_scan_rport, rport); 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->number = fc_host->next_rport_number++; 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->scsi_target_id = fc_host->next_target_id++; 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->scsi_target_id = -1; 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_add_tail(&rport->peers, &fc_host_rports(shost)); 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds get_device(&shost->shost_gendev); 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev = &rport->dev; 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_initialize(dev); 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->parent = get_device(&shost->shost_gendev); 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev->release = fc_rport_dev_release; 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sprintf(dev->bus_id, "rport-%d:%d-%d", 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds shost->host_no, channel, rport->number); 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_setup_device(dev); 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = device_add(dev); 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) { 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "FC Remote Port device_add failed\n"); 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto delete_rport; 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_add_device(dev); 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_configure_device(dev); 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdelete_rport: 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_destroy_device(dev); 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(dev->parent); 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_del(&rport->peers); 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(&shost->shost_gendev); 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(dev->parent); 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(rport); 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_remote_port_add - notifies the fc transport of the existence 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of a remote FC port. 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @shost: scsi host the remote port is connected to. 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @channel: Channel on shost port connected to. 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ids: The world wide names, fc address, and FC4 port 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * roles for the remote port. 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LLDD calls this routine to notify the transport of the existence 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of a remote port. The LLDD provides the unique identifiers (wwpn,wwn) 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the port, it's FC address (port_id), and the FC4 roles that are 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * active for the port. 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For ports that are FCP targets (aka scsi targets), the FC transport 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * maintains consistent target id bindings on behalf of the LLDD. 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * A consistent target id binding is an assignment of a target id to 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a remote port identifier, which persists while the scsi host is 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attached. The remote port can disappear, then later reappear, and 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it's target id assignment remains the same. This allows for shifts 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * in FC addressing (if binding by wwpn or wwnn) with no apparent 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * changes to the scsi subsystem which is based on scsi host number and 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * target id values. Bindings are only valid during the attachment of 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the scsi host. If the host detaches, then later re-attaches, target 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * id bindings may change. 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is responsible for returning a remote port structure. 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The routine will search the list of remote ports it maintains 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * internally on behalf of consistent target id mappings. If found, the 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * remote port structure will be reused. Otherwise, a new remote port 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * structure will be allocated. 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Whenever a remote port is allocated, a new fc_remote_port class 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device is created. 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should not be called from interrupt context. 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds **/ 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct fc_rport * 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_add(struct Scsi_Host *shost, int channel, 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport_identifiers *ids) 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport; 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int match = 0; 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (likely((ids->roles & FC_RPORT_ROLE_FCP_TARGET) && 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (fc_host_tgtid_bind_type(shost) != FC_TGTID_BIND_NONE))) { 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* search for a matching consistent binding */ 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry(rport, &fc_host_rport_bindings(shost), 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds peers) { 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->channel != channel) 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (fc_host_tgtid_bind_type(shost)) { 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWPN: 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->port_name == ids->port_name) 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWNN: 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->node_name == ids->node_name) 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_ID: 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->port_id == ids->port_id) 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds match = 1; 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_NONE: /* to keep compiler happy */ 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match) { 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_move_tail(&rport->peers, 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &fc_host_rports(shost)); 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match) { 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->node_name, &ids->node_name, 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(rport->node_name)); 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&rport->port_name, &ids->port_name, 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(rport->port_name)); 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = ids->port_id; 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = ids->roles; 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_ONLINE; 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->roles & FC_RPORT_ROLE_FCP_TARGET) 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* No consistent binding found - create new remote port entry */ 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport = fc_rport_create(shost, channel, ids); 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rport; 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_add); 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_rport_tgt_remove - Removes the scsi target on the remote port 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port to be operated on 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_rport_tgt_remove(struct fc_rport *rport) 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_target_unblock(&rport->dev); 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Stop anything on the workq */ 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!cancel_delayed_work(&rport->dev_loss_work)) 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flush_scheduled_work(); 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_flush_work(shost); 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_remove_target(&rport->dev); 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_rport_terminate - this routine tears down and deallocates a remote port. 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port to be terminated 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_rport_terminate(struct fc_rport *rport) 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev = &rport->dev; 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_tgt_remove(rport); 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_remove_device(dev); 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_del(dev); 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds transport_destroy_device(dev); 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_del(&rport->peers); 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds put_device(&shost->shost_gendev); 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_remote_port_delete - notifies the fc transport that a remote 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * port is no longer in existence. 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port that no longer exists 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LLDD calls this routine to notify the transport that a remote 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * port is no longer part of the topology. Note: Although a port 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * may no longer be part of the topology, it may persist in the remote 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ports displayed by the fc_host. This is done so that target id 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mappings (managed via the remote port structures), are always visible 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * as long as the mapping is valid, regardless of port state, 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If the remote port is not an FCP Target, it will be fully torn down 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and deallocated, including the fc_remote_port class device. 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If the remote port is an FCP Target, the port structure will be 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * marked as Not Present, but will remain as long as there is a valid 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * SCSI target id mapping associated with the port structure. Validity 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * is determined by the binding type. If binding by wwpn, then the port 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * structure is always valid and will not be deallocated until the host 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * is removed. If binding by wwnn, then the port structure is valid 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * until another port with the same node name is found in the topology. 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If binding by port id (fc address), then the port structure is valid 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * valid until another port with the same address is identified. 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Called from interrupt or normal process context. 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds **/ 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_delete(struct fc_rport *rport) 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* If no scsi target id mapping or consistent binding type, delete it */ 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((rport->scsi_target_id == -1) || 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (fc_host_tgtid_bind_type(shost) == FC_TGTID_BIND_NONE)) { 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_terminate(rport); 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fc_rport_tgt_remove(rport); 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_move_tail(&rport->peers, &fc_host_rport_bindings(shost)); 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: We do not remove or clear the hostdata area. This allows 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * host-specific target data to persist along with the 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi_target_id. It's up to the host to manage it's hostdata area. 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Reinitialize port attributes that may change if the port comes back. 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->maxframe_size = -1; 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->supported_classes = FC_COS_UNSPECIFIED; 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = FC_RPORT_ROLE_UNKNOWN; 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_NOTPRESENT; 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* remove the identifiers that aren't used in the consisting binding */ 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (fc_host_tgtid_bind_type(shost)) { 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWPN: 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->node_name = -1; 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = -1; 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_WWNN: 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_name = -1; 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_id = -1; 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_BY_ID: 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->node_name = -1; 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_name = -1; 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case FC_TGTID_BIND_NONE: /* to keep compiler happy */ 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_delete); 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_remote_port_rolechg - notifies the fc transport that the roles 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * on a remote may have changed. 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: The remote port that changed. 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The LLDD calls this routine to notify the transport that the roles 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * on a remote port may have changed. The largest effect of this is 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * if a port now becomes a FCP Target, it must be allocated a 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi target id. If the port is no longer a FCP target, any 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi target id value assigned to it will persist in case the 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * role changes back to include FCP Target. No changes in the scsi 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * midlayer will be invoked if the role changes (in the expectation 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that the role will be resumed. If it doesn't normal error processing 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * will take place). 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should not be called from interrupt context. 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds **/ 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_rolechg(struct fc_rport *rport, u32 roles) 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_host_attrs *fc_host = 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (struct fc_host_attrs *)shost->shost_data; 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int create = 0; 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->roles = roles; 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(shost->host_lock, flags); 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((rport->scsi_target_id == -1) && 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (rport->roles & FC_RPORT_ROLE_FCP_TARGET)) { 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->scsi_target_id = fc_host->next_target_id++; 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds create = 1; 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(shost->host_lock, flags); 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (create) 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* initiate a scan of the target */ 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_rolechg); 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_timeout_blocked_rport - Timeout handler for blocked remote port 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that fails to return in the alloted time. 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @data: scsi target that failed to reappear in the alloted time. 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds **/ 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_timeout_blocked_rport(void *data) 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = (struct fc_rport *)data; 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_OFFLINE; 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_printk(KERN_ERR, &rport->dev, 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "blocked FC remote port time out: removing target\n"); 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * As this only occurs if the remote port (scsi target) 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * went away and didn't come back - we'll remove 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * all attached scsi devices. 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_target_unblock(&rport->dev); 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_remove_target(&rport->dev); 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_remote_port_block - temporarily block any scsi traffic to a remote port. 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: remote port to be blocked. 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi lldd's with a FC transport call this routine to temporarily stop 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * all scsi traffic to a remote port. If the port is not a SCSI target, 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * no action is taken. If the port is a SCSI target, all attached devices 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * are placed into a SDEV_BLOCK state and a timer is started. The timer is 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * represents the maximum amount of time the port may be blocked. If the 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * timer expires, the port is considered non-existent and the attached 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi devices will be removed. 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Called from interrupt or normal process context. 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns zero if successful or error if not 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The timeout and timer types are extracted from the fc transport 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attributes from the caller's rport pointer. 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds **/ 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_block(struct fc_rport *rport) 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int timeout = rport->dev_loss_tmo; 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct work_struct *work = &rport->dev_loss_work; 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (timeout < 0 || timeout > SCSI_DEVICE_BLOCK_MAX_TIMEOUT) 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_target_block(&rport->dev); 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* cap the length the devices can be blocked */ 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule_delayed_work(work, timeout * HZ); 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_BLOCKED; 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_block); 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_remote_port_unblock - restart any blocked scsi traffic to a remote port. 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rport: remote port to be unblocked. 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * scsi lld's with a FC transport call this routine to restart IO to all 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * devices associated with the caller's scsi target following a fc_target_block 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * request. Called from interrupt or normal process context. 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Notes: 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine assumes no locks are held on entry. 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds **/ 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_remote_port_unblock(struct fc_rport *rport) 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct work_struct *work = &rport->dev_loss_work; 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct Scsi_Host *shost = rport_to_shost(rport); 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Stop the target timer first. Take no action on the del_timer 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * failure as the state machine state change will validate the 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * transaction. 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!cancel_delayed_work(work)) 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flush_scheduled_work(); 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rport->port_state == FC_PORTSTATE_OFFLINE) 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * initiate a scan of the target as the target has 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * been torn down. 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_queue_work(shost, &rport->scan_work); 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_target_unblock(&rport->dev); 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rport->port_state = FC_PORTSTATE_ONLINE; 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(fc_remote_port_unblock); 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fc_scsi_scan_rport - called to perform a scsi scan on a remote port. 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @data: remote port to be scanned. 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds **/ 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfc_scsi_scan_rport(void *data) 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct fc_rport *rport = (struct fc_rport *)data; 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds scsi_scan_target(&rport->dev, rport->channel, rport->scsi_target_id, 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SCAN_WILD_CARD, 1); 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("Martin Hicks"); 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("FC Transport Attributes"); 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(fc_transport_init); 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(fc_transport_exit); 1694