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![James Smart](/assets/img/avatar_default.png)
Add 64GBIT and 128GBIT port speed definitions. Upcoming hardware will reference these speeds. Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
827 lines
26 KiB
C
827 lines
26 KiB
C
/*
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* FiberChannel transport specific attributes exported to sysfs.
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*
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* Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ========
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*
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* Copyright (C) 2004-2007 James Smart, Emulex Corporation
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* Rewrite for host, target, device, and remote port attributes,
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* statistics, and service functions...
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*
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*/
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#ifndef SCSI_TRANSPORT_FC_H
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#define SCSI_TRANSPORT_FC_H
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#include <linux/sched.h>
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#include <linux/bsg-lib.h>
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#include <asm/unaligned.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_netlink.h>
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#include <scsi/scsi_host.h>
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struct scsi_transport_template;
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/*
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* FC Port definitions - Following FC HBAAPI guidelines
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*
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* Note: Not all binary values for the different fields match HBAAPI.
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* Instead, we use densely packed ordinal values or enums.
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* We get away with this as we never present the actual binary values
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* externally. For sysfs, we always present the string that describes
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* the value. Thus, an admin doesn't need a magic HBAAPI decoder ring
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* to understand the values. The HBAAPI user-space library is free to
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* convert the strings into the HBAAPI-specified binary values.
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*
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* Note: Not all HBAAPI-defined values are contained in the definitions
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* below. Those not appropriate to an fc_host (e.g. FCP initiator) have
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* been removed.
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*/
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/*
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* fc_port_type: If you alter this, you also need to alter scsi_transport_fc.c
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* (for the ascii descriptions).
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*/
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enum fc_port_type {
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FC_PORTTYPE_UNKNOWN,
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FC_PORTTYPE_OTHER,
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FC_PORTTYPE_NOTPRESENT,
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FC_PORTTYPE_NPORT, /* Attached to FPort */
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FC_PORTTYPE_NLPORT, /* (Public) Loop w/ FLPort */
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FC_PORTTYPE_LPORT, /* (Private) Loop w/o FLPort */
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FC_PORTTYPE_PTP, /* Point to Point w/ another NPort */
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FC_PORTTYPE_NPIV, /* VPORT based on NPIV */
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};
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/*
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* fc_port_state: If you alter this, you also need to alter scsi_transport_fc.c
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* (for the ascii descriptions).
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*/
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enum fc_port_state {
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FC_PORTSTATE_UNKNOWN,
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FC_PORTSTATE_NOTPRESENT,
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FC_PORTSTATE_ONLINE,
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FC_PORTSTATE_OFFLINE, /* User has taken Port Offline */
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FC_PORTSTATE_BLOCKED,
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FC_PORTSTATE_BYPASSED,
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FC_PORTSTATE_DIAGNOSTICS,
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FC_PORTSTATE_LINKDOWN,
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FC_PORTSTATE_ERROR,
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FC_PORTSTATE_LOOPBACK,
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FC_PORTSTATE_DELETED,
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};
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/*
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* fc_vport_state: If you alter this, you also need to alter
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* scsi_transport_fc.c (for the ascii descriptions).
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*/
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enum fc_vport_state {
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FC_VPORT_UNKNOWN,
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FC_VPORT_ACTIVE,
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FC_VPORT_DISABLED,
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FC_VPORT_LINKDOWN,
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FC_VPORT_INITIALIZING,
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FC_VPORT_NO_FABRIC_SUPP,
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FC_VPORT_NO_FABRIC_RSCS,
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FC_VPORT_FABRIC_LOGOUT,
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FC_VPORT_FABRIC_REJ_WWN,
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FC_VPORT_FAILED,
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};
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/*
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* FC Classes of Service
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* Note: values are not enumerated, as they can be "or'd" together
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* for reporting (e.g. report supported_classes). If you alter this list,
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* you also need to alter scsi_transport_fc.c (for the ascii descriptions).
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*/
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#define FC_COS_UNSPECIFIED 0
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#define FC_COS_CLASS1 2
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#define FC_COS_CLASS2 4
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#define FC_COS_CLASS3 8
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#define FC_COS_CLASS4 0x10
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#define FC_COS_CLASS6 0x40
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/*
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* FC Port Speeds
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* Note: values are not enumerated, as they can be "or'd" together
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* for reporting (e.g. report supported_speeds). If you alter this list,
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* you also need to alter scsi_transport_fc.c (for the ascii descriptions).
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*/
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#define FC_PORTSPEED_UNKNOWN 0 /* Unknown - transceiver
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incapable of reporting */
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#define FC_PORTSPEED_1GBIT 1
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#define FC_PORTSPEED_2GBIT 2
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#define FC_PORTSPEED_10GBIT 4
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#define FC_PORTSPEED_4GBIT 8
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#define FC_PORTSPEED_8GBIT 0x10
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#define FC_PORTSPEED_16GBIT 0x20
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#define FC_PORTSPEED_32GBIT 0x40
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#define FC_PORTSPEED_20GBIT 0x80
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#define FC_PORTSPEED_40GBIT 0x100
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#define FC_PORTSPEED_50GBIT 0x200
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#define FC_PORTSPEED_100GBIT 0x400
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#define FC_PORTSPEED_25GBIT 0x800
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#define FC_PORTSPEED_64BIT 0x1000
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#define FC_PORTSPEED_128BIT 0x2000
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#define FC_PORTSPEED_NOT_NEGOTIATED (1 << 15) /* Speed not established */
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/*
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* fc_tgtid_binding_type: If you alter this, you also need to alter
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* scsi_transport_fc.c (for the ascii descriptions).
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*/
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enum fc_tgtid_binding_type {
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FC_TGTID_BIND_NONE,
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FC_TGTID_BIND_BY_WWPN,
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FC_TGTID_BIND_BY_WWNN,
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FC_TGTID_BIND_BY_ID,
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};
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/*
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* FC Port Roles
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* Note: values are not enumerated, as they can be "or'd" together
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* for reporting (e.g. report roles). If you alter this list,
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* you also need to alter scsi_transport_fc.c (for the ascii descriptions).
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*/
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#define FC_PORT_ROLE_UNKNOWN 0x00
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#define FC_PORT_ROLE_FCP_TARGET 0x01
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#define FC_PORT_ROLE_FCP_INITIATOR 0x02
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#define FC_PORT_ROLE_IP_PORT 0x04
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#define FC_PORT_ROLE_FCP_DUMMY_INITIATOR 0x08
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/* The following are for compatibility */
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#define FC_RPORT_ROLE_UNKNOWN FC_PORT_ROLE_UNKNOWN
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#define FC_RPORT_ROLE_FCP_TARGET FC_PORT_ROLE_FCP_TARGET
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#define FC_RPORT_ROLE_FCP_INITIATOR FC_PORT_ROLE_FCP_INITIATOR
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#define FC_RPORT_ROLE_IP_PORT FC_PORT_ROLE_IP_PORT
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/* Macro for use in defining Virtual Port attributes */
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#define FC_VPORT_ATTR(_name,_mode,_show,_store) \
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struct device_attribute dev_attr_vport_##_name = \
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__ATTR(_name,_mode,_show,_store)
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/*
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* fc_vport_identifiers: This set of data contains all elements
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* to uniquely identify and instantiate a FC virtual port.
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*
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* Notes:
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* symbolic_name: The driver is to append the symbolic_name string data
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* to the symbolic_node_name data that it generates by default.
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* the resulting combination should then be registered with the switch.
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* It is expected that things like Xen may stuff a VM title into
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* this field.
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*/
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#define FC_VPORT_SYMBOLIC_NAMELEN 64
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struct fc_vport_identifiers {
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u64 node_name;
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u64 port_name;
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u32 roles;
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bool disable;
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enum fc_port_type vport_type; /* only FC_PORTTYPE_NPIV allowed */
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char symbolic_name[FC_VPORT_SYMBOLIC_NAMELEN];
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};
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/*
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* FC Virtual Port Attributes
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*
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* This structure exists for each FC port is a virtual FC port. Virtual
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* ports share the physical link with the Physical port. Each virtual
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* ports has a unique presence on the SAN, and may be instantiated via
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* NPIV, Virtual Fabrics, or via additional ALPAs. As the vport is a
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* unique presence, each vport has it's own view of the fabric,
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* authentication privilege, and priorities.
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*
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* A virtual port may support 1 or more FC4 roles. Typically it is a
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* FCP Initiator. It could be a FCP Target, or exist sole for an IP over FC
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* roles. FC port attributes for the vport will be reported on any
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* fc_host class object allocated for an FCP Initiator.
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*
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* --
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*
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* Fixed attributes are not expected to change. The driver is
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* expected to set these values after receiving the fc_vport structure
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* via the vport_create() call from the transport.
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* The transport fully manages all get functions w/o driver interaction.
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*
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* Dynamic attributes are expected to change. The driver participates
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* in all get/set operations via functions provided by the driver.
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*
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* Private attributes are transport-managed values. They are fully
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* managed by the transport w/o driver interaction.
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*/
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struct fc_vport {
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/* Fixed Attributes */
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/* Dynamic Attributes */
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/* Private (Transport-managed) Attributes */
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enum fc_vport_state vport_state;
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enum fc_vport_state vport_last_state;
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u64 node_name;
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u64 port_name;
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u32 roles;
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u32 vport_id; /* Admin Identifier for the vport */
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enum fc_port_type vport_type;
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char symbolic_name[FC_VPORT_SYMBOLIC_NAMELEN];
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/* exported data */
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void *dd_data; /* Used for driver-specific storage */
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/* internal data */
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struct Scsi_Host *shost; /* Physical Port Parent */
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unsigned int channel;
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u32 number;
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u8 flags;
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struct list_head peers;
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struct device dev;
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struct work_struct vport_delete_work;
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} __attribute__((aligned(sizeof(unsigned long))));
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/* bit field values for struct fc_vport "flags" field: */
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#define FC_VPORT_CREATING 0x01
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#define FC_VPORT_DELETING 0x02
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#define FC_VPORT_DELETED 0x04
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#define FC_VPORT_DEL 0x06 /* Any DELETE state */
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#define dev_to_vport(d) \
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container_of(d, struct fc_vport, dev)
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#define transport_class_to_vport(dev) \
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dev_to_vport(dev->parent)
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#define vport_to_shost(v) \
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(v->shost)
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#define vport_to_shost_channel(v) \
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(v->channel)
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#define vport_to_parent(v) \
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(v->dev.parent)
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/* Error return codes for vport_create() callback */
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#define VPCERR_UNSUPPORTED -ENOSYS /* no driver/adapter
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support */
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#define VPCERR_BAD_WWN -ENOTUNIQ /* driver validation
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of WWNs failed */
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#define VPCERR_NO_FABRIC_SUPP -EOPNOTSUPP /* Fabric connection
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is loop or the
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Fabric Port does
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not support NPIV */
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/*
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* fc_rport_identifiers: This set of data contains all elements
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* to uniquely identify a remote FC port. The driver uses this data
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* to report the existence of a remote FC port in the topology. Internally,
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* the transport uses this data for attributes and to manage consistent
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* target id bindings.
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*/
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struct fc_rport_identifiers {
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u64 node_name;
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u64 port_name;
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u32 port_id;
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u32 roles;
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};
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/* Macro for use in defining Remote Port attributes */
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#define FC_RPORT_ATTR(_name,_mode,_show,_store) \
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struct device_attribute dev_attr_rport_##_name = \
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__ATTR(_name,_mode,_show,_store)
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/*
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* FC Remote Port Attributes
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*
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* This structure exists for each remote FC port that a LLDD notifies
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* the subsystem of. A remote FC port may or may not be a SCSI Target,
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* also be a SCSI initiator, IP endpoint, etc. As such, the remote
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* port is considered a separate entity, independent of "role" (such
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* as scsi target).
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*
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* --
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*
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* Attributes are based on HBAAPI V2.0 definitions. Only those
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* attributes that are determinable by the local port (aka Host)
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* are contained.
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*
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* Fixed attributes are not expected to change. The driver is
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* expected to set these values after successfully calling
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* fc_remote_port_add(). The transport fully manages all get functions
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* w/o driver interaction.
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*
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* Dynamic attributes are expected to change. The driver participates
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* in all get/set operations via functions provided by the driver.
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*
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* Private attributes are transport-managed values. They are fully
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* managed by the transport w/o driver interaction.
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*/
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struct fc_rport { /* aka fc_starget_attrs */
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/* Fixed Attributes */
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u32 maxframe_size;
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u32 supported_classes;
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/* Dynamic Attributes */
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u32 dev_loss_tmo; /* Remote Port loss timeout in seconds. */
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/* Private (Transport-managed) Attributes */
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u64 node_name;
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u64 port_name;
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u32 port_id;
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u32 roles;
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enum fc_port_state port_state; /* Will only be ONLINE or UNKNOWN */
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u32 scsi_target_id;
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u32 fast_io_fail_tmo;
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/* exported data */
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void *dd_data; /* Used for driver-specific storage */
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/* internal data */
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unsigned int channel;
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u32 number;
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u8 flags;
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struct list_head peers;
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struct device dev;
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struct delayed_work dev_loss_work;
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struct work_struct scan_work;
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struct delayed_work fail_io_work;
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struct work_struct stgt_delete_work;
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struct work_struct rport_delete_work;
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struct request_queue *rqst_q; /* bsg support */
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} __attribute__((aligned(sizeof(unsigned long))));
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/* bit field values for struct fc_rport "flags" field: */
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#define FC_RPORT_DEVLOSS_PENDING 0x01
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#define FC_RPORT_SCAN_PENDING 0x02
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#define FC_RPORT_FAST_FAIL_TIMEDOUT 0x04
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#define FC_RPORT_DEVLOSS_CALLBK_DONE 0x08
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#define dev_to_rport(d) \
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container_of(d, struct fc_rport, dev)
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#define transport_class_to_rport(dev) \
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dev_to_rport(dev->parent)
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#define rport_to_shost(r) \
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dev_to_shost(r->dev.parent)
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/*
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* FC SCSI Target Attributes
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*
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* The SCSI Target is considered an extension of a remote port (as
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* a remote port can be more than a SCSI Target). Within the scsi
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* subsystem, we leave the Target as a separate entity. Doing so
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* provides backward compatibility with prior FC transport api's,
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* and lets remote ports be handled entirely within the FC transport
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* and independently from the scsi subsystem. The drawback is that
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* some data will be duplicated.
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*/
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struct fc_starget_attrs { /* aka fc_target_attrs */
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/* Dynamic Attributes */
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u64 node_name;
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u64 port_name;
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u32 port_id;
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};
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#define fc_starget_node_name(x) \
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(((struct fc_starget_attrs *)&(x)->starget_data)->node_name)
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#define fc_starget_port_name(x) \
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(((struct fc_starget_attrs *)&(x)->starget_data)->port_name)
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#define fc_starget_port_id(x) \
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(((struct fc_starget_attrs *)&(x)->starget_data)->port_id)
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#define starget_to_rport(s) \
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scsi_is_fc_rport(s->dev.parent) ? dev_to_rport(s->dev.parent) : NULL
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/*
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* FC Local Port (Host) Statistics
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*/
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/* FC Statistics - Following FC HBAAPI v2.0 guidelines */
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struct fc_host_statistics {
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/* port statistics */
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u64 seconds_since_last_reset;
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u64 tx_frames;
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u64 tx_words;
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u64 rx_frames;
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u64 rx_words;
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u64 lip_count;
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u64 nos_count;
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u64 error_frames;
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u64 dumped_frames;
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u64 link_failure_count;
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u64 loss_of_sync_count;
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u64 loss_of_signal_count;
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u64 prim_seq_protocol_err_count;
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u64 invalid_tx_word_count;
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u64 invalid_crc_count;
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/* fc4 statistics (only FCP supported currently) */
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u64 fcp_input_requests;
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u64 fcp_output_requests;
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u64 fcp_control_requests;
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u64 fcp_input_megabytes;
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u64 fcp_output_megabytes;
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u64 fcp_packet_alloc_failures; /* fcp packet allocation failures */
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u64 fcp_packet_aborts; /* fcp packet aborted */
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u64 fcp_frame_alloc_failures; /* fcp frame allocation failures */
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/* fc exches statistics */
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u64 fc_no_free_exch; /* no free exch memory */
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u64 fc_no_free_exch_xid; /* no free exch id */
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u64 fc_xid_not_found; /* exch not found for a response */
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u64 fc_xid_busy; /* exch exist for new a request */
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u64 fc_seq_not_found; /* seq is not found for exchange */
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u64 fc_non_bls_resp; /* a non BLS response frame with
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a sequence responder in new exch */
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};
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/*
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* FC Event Codes - Polled and Async, following FC HBAAPI v2.0 guidelines
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*/
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/*
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* fc_host_event_code: If you alter this, you also need to alter
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* scsi_transport_fc.c (for the ascii descriptions).
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*/
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enum fc_host_event_code {
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FCH_EVT_LIP = 0x1,
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FCH_EVT_LINKUP = 0x2,
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FCH_EVT_LINKDOWN = 0x3,
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FCH_EVT_LIPRESET = 0x4,
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FCH_EVT_RSCN = 0x5,
|
|
FCH_EVT_ADAPTER_CHANGE = 0x103,
|
|
FCH_EVT_PORT_UNKNOWN = 0x200,
|
|
FCH_EVT_PORT_OFFLINE = 0x201,
|
|
FCH_EVT_PORT_ONLINE = 0x202,
|
|
FCH_EVT_PORT_FABRIC = 0x204,
|
|
FCH_EVT_LINK_UNKNOWN = 0x500,
|
|
FCH_EVT_VENDOR_UNIQUE = 0xffff,
|
|
};
|
|
|
|
|
|
/*
|
|
* FC Local Port (Host) Attributes
|
|
*
|
|
* Attributes are based on HBAAPI V2.0 definitions.
|
|
* Note: OSDeviceName is determined by user-space library
|
|
*
|
|
* Fixed attributes are not expected to change. The driver is
|
|
* expected to set these values after successfully calling scsi_add_host().
|
|
* The transport fully manages all get functions w/o driver interaction.
|
|
*
|
|
* Dynamic attributes are expected to change. The driver participates
|
|
* in all get/set operations via functions provided by the driver.
|
|
*
|
|
* Private attributes are transport-managed values. They are fully
|
|
* managed by the transport w/o driver interaction.
|
|
*/
|
|
|
|
#define FC_FC4_LIST_SIZE 32
|
|
#define FC_SYMBOLIC_NAME_SIZE 256
|
|
#define FC_VERSION_STRING_SIZE 64
|
|
#define FC_SERIAL_NUMBER_SIZE 80
|
|
|
|
struct fc_host_attrs {
|
|
/* Fixed Attributes */
|
|
u64 node_name;
|
|
u64 port_name;
|
|
u64 permanent_port_name;
|
|
u32 supported_classes;
|
|
u8 supported_fc4s[FC_FC4_LIST_SIZE];
|
|
u32 supported_speeds;
|
|
u32 maxframe_size;
|
|
u16 max_npiv_vports;
|
|
char serial_number[FC_SERIAL_NUMBER_SIZE];
|
|
char manufacturer[FC_SERIAL_NUMBER_SIZE];
|
|
char model[FC_SYMBOLIC_NAME_SIZE];
|
|
char model_description[FC_SYMBOLIC_NAME_SIZE];
|
|
char hardware_version[FC_VERSION_STRING_SIZE];
|
|
char driver_version[FC_VERSION_STRING_SIZE];
|
|
char firmware_version[FC_VERSION_STRING_SIZE];
|
|
char optionrom_version[FC_VERSION_STRING_SIZE];
|
|
|
|
/* Dynamic Attributes */
|
|
u32 port_id;
|
|
enum fc_port_type port_type;
|
|
enum fc_port_state port_state;
|
|
u8 active_fc4s[FC_FC4_LIST_SIZE];
|
|
u32 speed;
|
|
u64 fabric_name;
|
|
char symbolic_name[FC_SYMBOLIC_NAME_SIZE];
|
|
char system_hostname[FC_SYMBOLIC_NAME_SIZE];
|
|
u32 dev_loss_tmo;
|
|
|
|
/* Private (Transport-managed) Attributes */
|
|
enum fc_tgtid_binding_type tgtid_bind_type;
|
|
|
|
/* internal data */
|
|
struct list_head rports;
|
|
struct list_head rport_bindings;
|
|
struct list_head vports;
|
|
u32 next_rport_number;
|
|
u32 next_target_id;
|
|
u32 next_vport_number;
|
|
u16 npiv_vports_inuse;
|
|
|
|
/* work queues for rport state manipulation */
|
|
char work_q_name[20];
|
|
struct workqueue_struct *work_q;
|
|
char devloss_work_q_name[20];
|
|
struct workqueue_struct *devloss_work_q;
|
|
|
|
/* bsg support */
|
|
struct request_queue *rqst_q;
|
|
};
|
|
|
|
#define shost_to_fc_host(x) \
|
|
((struct fc_host_attrs *)(x)->shost_data)
|
|
|
|
#define fc_host_node_name(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->node_name)
|
|
#define fc_host_port_name(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->port_name)
|
|
#define fc_host_permanent_port_name(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->permanent_port_name)
|
|
#define fc_host_supported_classes(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->supported_classes)
|
|
#define fc_host_supported_fc4s(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->supported_fc4s)
|
|
#define fc_host_supported_speeds(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->supported_speeds)
|
|
#define fc_host_maxframe_size(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->maxframe_size)
|
|
#define fc_host_max_npiv_vports(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->max_npiv_vports)
|
|
#define fc_host_serial_number(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->serial_number)
|
|
#define fc_host_manufacturer(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->manufacturer)
|
|
#define fc_host_model(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->model)
|
|
#define fc_host_model_description(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->model_description)
|
|
#define fc_host_hardware_version(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->hardware_version)
|
|
#define fc_host_driver_version(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->driver_version)
|
|
#define fc_host_firmware_version(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->firmware_version)
|
|
#define fc_host_optionrom_version(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->optionrom_version)
|
|
#define fc_host_port_id(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->port_id)
|
|
#define fc_host_port_type(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->port_type)
|
|
#define fc_host_port_state(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->port_state)
|
|
#define fc_host_active_fc4s(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->active_fc4s)
|
|
#define fc_host_speed(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->speed)
|
|
#define fc_host_fabric_name(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->fabric_name)
|
|
#define fc_host_symbolic_name(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->symbolic_name)
|
|
#define fc_host_system_hostname(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->system_hostname)
|
|
#define fc_host_tgtid_bind_type(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->tgtid_bind_type)
|
|
#define fc_host_rports(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->rports)
|
|
#define fc_host_rport_bindings(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->rport_bindings)
|
|
#define fc_host_vports(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->vports)
|
|
#define fc_host_next_rport_number(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->next_rport_number)
|
|
#define fc_host_next_target_id(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->next_target_id)
|
|
#define fc_host_next_vport_number(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->next_vport_number)
|
|
#define fc_host_npiv_vports_inuse(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->npiv_vports_inuse)
|
|
#define fc_host_work_q_name(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->work_q_name)
|
|
#define fc_host_work_q(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->work_q)
|
|
#define fc_host_devloss_work_q_name(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q_name)
|
|
#define fc_host_devloss_work_q(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q)
|
|
#define fc_host_dev_loss_tmo(x) \
|
|
(((struct fc_host_attrs *)(x)->shost_data)->dev_loss_tmo)
|
|
|
|
/* The functions by which the transport class and the driver communicate */
|
|
struct fc_function_template {
|
|
void (*get_rport_dev_loss_tmo)(struct fc_rport *);
|
|
void (*set_rport_dev_loss_tmo)(struct fc_rport *, u32);
|
|
|
|
void (*get_starget_node_name)(struct scsi_target *);
|
|
void (*get_starget_port_name)(struct scsi_target *);
|
|
void (*get_starget_port_id)(struct scsi_target *);
|
|
|
|
void (*get_host_port_id)(struct Scsi_Host *);
|
|
void (*get_host_port_type)(struct Scsi_Host *);
|
|
void (*get_host_port_state)(struct Scsi_Host *);
|
|
void (*get_host_active_fc4s)(struct Scsi_Host *);
|
|
void (*get_host_speed)(struct Scsi_Host *);
|
|
void (*get_host_fabric_name)(struct Scsi_Host *);
|
|
void (*get_host_symbolic_name)(struct Scsi_Host *);
|
|
void (*set_host_system_hostname)(struct Scsi_Host *);
|
|
|
|
struct fc_host_statistics * (*get_fc_host_stats)(struct Scsi_Host *);
|
|
void (*reset_fc_host_stats)(struct Scsi_Host *);
|
|
|
|
int (*issue_fc_host_lip)(struct Scsi_Host *);
|
|
|
|
void (*dev_loss_tmo_callbk)(struct fc_rport *);
|
|
void (*terminate_rport_io)(struct fc_rport *);
|
|
|
|
void (*set_vport_symbolic_name)(struct fc_vport *);
|
|
int (*vport_create)(struct fc_vport *, bool);
|
|
int (*vport_disable)(struct fc_vport *, bool);
|
|
int (*vport_delete)(struct fc_vport *);
|
|
|
|
/* bsg support */
|
|
int (*bsg_request)(struct bsg_job *);
|
|
int (*bsg_timeout)(struct bsg_job *);
|
|
|
|
/* allocation lengths for host-specific data */
|
|
u32 dd_fcrport_size;
|
|
u32 dd_fcvport_size;
|
|
u32 dd_bsg_size;
|
|
|
|
/*
|
|
* The driver sets these to tell the transport class it
|
|
* wants the attributes displayed in sysfs. If the show_ flag
|
|
* is not set, the attribute will be private to the transport
|
|
* class
|
|
*/
|
|
|
|
/* remote port fixed attributes */
|
|
unsigned long show_rport_maxframe_size:1;
|
|
unsigned long show_rport_supported_classes:1;
|
|
unsigned long show_rport_dev_loss_tmo:1;
|
|
|
|
/*
|
|
* target dynamic attributes
|
|
* These should all be "1" if the driver uses the remote port
|
|
* add/delete functions (so attributes reflect rport values).
|
|
*/
|
|
unsigned long show_starget_node_name:1;
|
|
unsigned long show_starget_port_name:1;
|
|
unsigned long show_starget_port_id:1;
|
|
|
|
/* host fixed attributes */
|
|
unsigned long show_host_node_name:1;
|
|
unsigned long show_host_port_name:1;
|
|
unsigned long show_host_permanent_port_name:1;
|
|
unsigned long show_host_supported_classes:1;
|
|
unsigned long show_host_supported_fc4s:1;
|
|
unsigned long show_host_supported_speeds:1;
|
|
unsigned long show_host_maxframe_size:1;
|
|
unsigned long show_host_serial_number:1;
|
|
unsigned long show_host_manufacturer:1;
|
|
unsigned long show_host_model:1;
|
|
unsigned long show_host_model_description:1;
|
|
unsigned long show_host_hardware_version:1;
|
|
unsigned long show_host_driver_version:1;
|
|
unsigned long show_host_firmware_version:1;
|
|
unsigned long show_host_optionrom_version:1;
|
|
/* host dynamic attributes */
|
|
unsigned long show_host_port_id:1;
|
|
unsigned long show_host_port_type:1;
|
|
unsigned long show_host_port_state:1;
|
|
unsigned long show_host_active_fc4s:1;
|
|
unsigned long show_host_speed:1;
|
|
unsigned long show_host_fabric_name:1;
|
|
unsigned long show_host_symbolic_name:1;
|
|
unsigned long show_host_system_hostname:1;
|
|
|
|
unsigned long disable_target_scan:1;
|
|
};
|
|
|
|
|
|
/**
|
|
* fc_remote_port_chkready - called to validate the remote port state
|
|
* prior to initiating io to the port.
|
|
*
|
|
* Returns a scsi result code that can be returned by the LLDD.
|
|
*
|
|
* @rport: remote port to be checked
|
|
**/
|
|
static inline int
|
|
fc_remote_port_chkready(struct fc_rport *rport)
|
|
{
|
|
int result;
|
|
|
|
switch (rport->port_state) {
|
|
case FC_PORTSTATE_ONLINE:
|
|
if (rport->roles & FC_PORT_ROLE_FCP_TARGET)
|
|
result = 0;
|
|
else if (rport->flags & FC_RPORT_DEVLOSS_PENDING)
|
|
result = DID_IMM_RETRY << 16;
|
|
else
|
|
result = DID_NO_CONNECT << 16;
|
|
break;
|
|
case FC_PORTSTATE_BLOCKED:
|
|
if (rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT)
|
|
result = DID_TRANSPORT_FAILFAST << 16;
|
|
else
|
|
result = DID_IMM_RETRY << 16;
|
|
break;
|
|
default:
|
|
result = DID_NO_CONNECT << 16;
|
|
break;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static inline u64 wwn_to_u64(u8 *wwn)
|
|
{
|
|
return get_unaligned_be64(wwn);
|
|
}
|
|
|
|
static inline void u64_to_wwn(u64 inm, u8 *wwn)
|
|
{
|
|
put_unaligned_be64(inm, wwn);
|
|
}
|
|
|
|
/**
|
|
* fc_vport_set_state() - called to set a vport's state. Saves the old state,
|
|
* excepting the transitory states of initializing and sending the ELS
|
|
* traffic to instantiate the vport on the link.
|
|
*
|
|
* Assumes the driver has surrounded this with the proper locking to ensure
|
|
* a coherent state change.
|
|
*
|
|
* @vport: virtual port whose state is changing
|
|
* @new_state: new state
|
|
**/
|
|
static inline void
|
|
fc_vport_set_state(struct fc_vport *vport, enum fc_vport_state new_state)
|
|
{
|
|
if ((new_state != FC_VPORT_UNKNOWN) &&
|
|
(new_state != FC_VPORT_INITIALIZING))
|
|
vport->vport_last_state = vport->vport_state;
|
|
vport->vport_state = new_state;
|
|
}
|
|
|
|
struct scsi_transport_template *fc_attach_transport(
|
|
struct fc_function_template *);
|
|
void fc_release_transport(struct scsi_transport_template *);
|
|
void fc_remove_host(struct Scsi_Host *);
|
|
struct fc_rport *fc_remote_port_add(struct Scsi_Host *shost,
|
|
int channel, struct fc_rport_identifiers *ids);
|
|
void fc_remote_port_delete(struct fc_rport *rport);
|
|
void fc_remote_port_rolechg(struct fc_rport *rport, u32 roles);
|
|
int scsi_is_fc_rport(const struct device *);
|
|
u32 fc_get_event_number(void);
|
|
void fc_host_post_event(struct Scsi_Host *shost, u32 event_number,
|
|
enum fc_host_event_code event_code, u32 event_data);
|
|
void fc_host_post_vendor_event(struct Scsi_Host *shost, u32 event_number,
|
|
u32 data_len, char * data_buf, u64 vendor_id);
|
|
/* Note: when specifying vendor_id to fc_host_post_vendor_event()
|
|
* be sure to read the Vendor Type and ID formatting requirements
|
|
* specified in scsi_netlink.h
|
|
*/
|
|
struct fc_vport *fc_vport_create(struct Scsi_Host *shost, int channel,
|
|
struct fc_vport_identifiers *);
|
|
int fc_vport_terminate(struct fc_vport *vport);
|
|
int fc_block_rport(struct fc_rport *rport);
|
|
int fc_block_scsi_eh(struct scsi_cmnd *cmnd);
|
|
enum blk_eh_timer_return fc_eh_timed_out(struct scsi_cmnd *scmd);
|
|
|
|
static inline struct Scsi_Host *fc_bsg_to_shost(struct bsg_job *job)
|
|
{
|
|
if (scsi_is_host_device(job->dev))
|
|
return dev_to_shost(job->dev);
|
|
return rport_to_shost(dev_to_rport(job->dev));
|
|
}
|
|
|
|
static inline struct fc_rport *fc_bsg_to_rport(struct bsg_job *job)
|
|
{
|
|
if (scsi_is_fc_rport(job->dev))
|
|
return dev_to_rport(job->dev);
|
|
return NULL;
|
|
}
|
|
|
|
#endif /* SCSI_TRANSPORT_FC_H */
|