mirror of https://github.com/ipxe/ipxe.git
[infiniband] Add support for the SRP Boot Firmware Table
The SRP Boot Firmware Table serves a similar role to the iSCSI and AoE Boot Firmware Tables; it provides information required by the loaded OS in order to establish a connection back to the SRP boot device.pull/1/head
Michael Brown
parent
0ff5c456cb
commit
e5f14e5a32
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#ifndef _GPXE_SBFT_H
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#define _GPXE_SBFT_H
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/*
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* Copyright (C) 2009 Fen Systems Ltd <mbrown@fensystems.co.uk>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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FILE_LICENCE ( BSD2 );
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/** @file
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*
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* SRP boot firmware table
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*
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* The working draft specification for the SRP boot firmware table can
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* be found at
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*
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* http://etherboot.org/wiki/srp/sbft
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*
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*/
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#include <stdint.h>
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#include <gpxe/acpi.h>
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#include <gpxe/scsi.h>
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#include <gpxe/srp.h>
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#include <gpxe/ib_srp.h>
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/** SRP Boot Firmware Table signature */
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#define SBFT_SIG "sBFT"
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/** An offset from the start of the sBFT */
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typedef uint16_t sbft_off_t;
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/**
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* SRP Boot Firmware Table
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*/
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struct sbft_table {
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/** ACPI header */
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struct acpi_description_header acpi;
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/** Offset to SCSI subtable */
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sbft_off_t scsi_offset;
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/** Offset to SRP subtable */
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sbft_off_t srp_offset;
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/** Offset to IB subtable, if present */
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sbft_off_t ib_offset;
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/** Reserved */
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uint8_t reserved[6];
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} __attribute__ (( packed ));
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/**
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* sBFT SCSI subtable
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*/
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struct sbft_scsi_subtable {
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/** LUN */
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struct scsi_lun lun;
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} __attribute__ (( packed ));
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/**
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* sBFT SRP subtable
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*/
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struct sbft_srp_subtable {
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/** Initiator and target ports */
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struct srp_port_ids port_ids;
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} __attribute__ (( packed ));
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/**
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* sBFT IB subtable
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*/
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struct sbft_ib_subtable {
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/** Source GID */
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struct ib_gid sgid;
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/** Destination GID */
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struct ib_gid dgid;
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/** Service ID */
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struct ib_gid_half service_id;
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/** Partition key */
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uint16_t pkey;
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/** Reserved */
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uint8_t reserved[6];
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} __attribute__ (( packed ));
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/**
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* An sBFT created by gPXE
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*/
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struct gpxe_sbft {
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/** The table header */
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struct sbft_table table;
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/** The SCSI subtable */
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struct sbft_scsi_subtable scsi;
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/** The SRP subtable */
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struct sbft_srp_subtable srp;
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/** The IB subtable */
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struct sbft_ib_subtable ib;
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} __attribute__ (( packed, aligned ( 16 ) ));
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struct srp_device;
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extern int sbft_fill_data ( struct srp_device *srp );
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#endif /* _GPXE_SBFT_H */
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@ -6,6 +6,7 @@
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#include <gpxe/sanboot.h>
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#include <int13.h>
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#include <gpxe/srp.h>
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#include <gpxe/sbft.h>
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FILE_LICENCE ( GPL2_OR_LATER );
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@ -38,6 +39,11 @@ static int ib_srpboot ( const char *root_path ) {
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drive->blockdev = &scsi->blockdev;
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/* FIXME: ugly, ugly hack */
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struct srp_device *srp =
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container_of ( scsi->backend, struct srp_device, refcnt );
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sbft_fill_data ( srp );
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register_int13_drive ( drive );
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printf ( "Registered as BIOS drive %#02x\n", drive->drive );
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printf ( "Booting from BIOS drive %#02x\n", drive->drive );
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@ -0,0 +1,105 @@
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/*
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* Copyright (C) 2009 Fen Systems Ltd <mbrown@fensystems.co.uk>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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FILE_LICENCE ( BSD2 );
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/** @file
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*
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* SRP boot firmware table
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*
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*/
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#include <assert.h>
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#include <realmode.h>
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#include <gpxe/srp.h>
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#include <gpxe/ib_srp.h>
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#include <gpxe/acpi.h>
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#include <gpxe/sbft.h>
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#define sbftab __use_data16 ( sbftab )
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/** The sBFT used by gPXE */
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struct gpxe_sbft __data16 ( sbftab ) = {
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/* Table header */
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.table = {
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/* ACPI header */
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.acpi = {
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.signature = SBFT_SIG,
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.length = sizeof ( sbftab ),
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.revision = 1,
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.oem_id = "FENSYS",
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.oem_table_id = "gPXE",
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},
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.scsi_offset = offsetof ( typeof ( sbftab ), scsi ),
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.srp_offset = offsetof ( typeof ( sbftab ), srp ),
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.ib_offset = offsetof ( typeof ( sbftab ), ib ),
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},
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};
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/**
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* Fill in all variable portions of sBFT
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*
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* @v srp SRP device
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* @ret rc Return status code
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*/
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int sbft_fill_data ( struct srp_device *srp ) {
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struct sbft_scsi_subtable *sbft_scsi = &sbftab.scsi;
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struct sbft_srp_subtable *sbft_srp = &sbftab.srp;
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struct sbft_ib_subtable *sbft_ib = &sbftab.ib;
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struct ib_srp_parameters *ib_params;
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struct segoff rm_sbftab = {
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.segment = rm_ds,
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.offset = __from_data16 ( &sbftab ),
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};
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/* Fill in the SCSI subtable */
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memcpy ( &sbft_scsi->lun, &srp->lun, sizeof ( sbft_scsi->lun ) );
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/* Fill in the SRP subtable */
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memcpy ( &sbft_srp->port_ids, &srp->port_ids,
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sizeof ( sbft_srp->port_ids ) );
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/* Fill in the IB subtable */
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assert ( srp->transport == &ib_srp_transport );
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ib_params = ib_srp_params ( srp );
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memcpy ( &sbft_ib->sgid, &ib_params->sgid, sizeof ( sbft_ib->sgid ) );
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memcpy ( &sbft_ib->dgid, &ib_params->dgid, sizeof ( sbft_ib->dgid ) );
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memcpy ( &sbft_ib->service_id, &ib_params->service_id,
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sizeof ( sbft_ib->service_id ) );
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sbft_ib->pkey = ib_params->pkey;
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/* Update checksum */
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acpi_fix_checksum ( &sbftab.table.acpi );
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DBGC ( &sbftab, "SRP Boot Firmware Table at %04x:%04x:\n",
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rm_sbftab.segment, rm_sbftab.offset );
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DBGC_HDA ( &sbftab, rm_sbftab, &sbftab, sizeof ( sbftab ) );
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return 0;
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}
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