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[infiniband] Add support for the SRP Boot Firmware Table

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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.
This commit is contained in:
Michael Brown 2009-08-10 21:22:31 +01:00
parent 0ff5c456cb
commit e5f14e5a32
3 changed files with 236 additions and 0 deletions
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125
src/arch/i386/include/gpxe/sbft.h Normal file
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@ -0,0 +1,125 @@
#ifndef _GPXE_SBFT_H
#define _GPXE_SBFT_H
/*
* Copyright (C) 2009 Fen Systems Ltd <mbrown@fensystems.co.uk>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
FILE_LICENCE ( BSD2 );
/** @file
*
* SRP boot firmware table
*
* The working draft specification for the SRP boot firmware table can
* be found at
*
* http://etherboot.org/wiki/srp/sbft
*
*/
#include <stdint.h>
#include <gpxe/acpi.h>
#include <gpxe/scsi.h>
#include <gpxe/srp.h>
#include <gpxe/ib_srp.h>
/** SRP Boot Firmware Table signature */
#define SBFT_SIG "sBFT"
/** An offset from the start of the sBFT */
typedef uint16_t sbft_off_t;
/**
* SRP Boot Firmware Table
*/
struct sbft_table {
/** ACPI header */
struct acpi_description_header acpi;
/** Offset to SCSI subtable */
sbft_off_t scsi_offset;
/** Offset to SRP subtable */
sbft_off_t srp_offset;
/** Offset to IB subtable, if present */
sbft_off_t ib_offset;
/** Reserved */
uint8_t reserved[6];
} __attribute__ (( packed ));
/**
* sBFT SCSI subtable
*/
struct sbft_scsi_subtable {
/** LUN */
struct scsi_lun lun;
} __attribute__ (( packed ));
/**
* sBFT SRP subtable
*/
struct sbft_srp_subtable {
/** Initiator and target ports */
struct srp_port_ids port_ids;
} __attribute__ (( packed ));
/**
* sBFT IB subtable
*/
struct sbft_ib_subtable {
/** Source GID */
struct ib_gid sgid;
/** Destination GID */
struct ib_gid dgid;
/** Service ID */
struct ib_gid_half service_id;
/** Partition key */
uint16_t pkey;
/** Reserved */
uint8_t reserved[6];
} __attribute__ (( packed ));
/**
* An sBFT created by gPXE
*/
struct gpxe_sbft {
/** The table header */
struct sbft_table table;
/** The SCSI subtable */
struct sbft_scsi_subtable scsi;
/** The SRP subtable */
struct sbft_srp_subtable srp;
/** The IB subtable */
struct sbft_ib_subtable ib;
} __attribute__ (( packed, aligned ( 16 ) ));
struct srp_device;
extern int sbft_fill_data ( struct srp_device *srp );
#endif /* _GPXE_SBFT_H */

6
src/arch/i386/interface/pcbios/ib_srpboot.c
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@ -6,6 +6,7 @@
#include <gpxe/sanboot.h>
#include <int13.h>
#include <gpxe/srp.h>
#include <gpxe/sbft.h>
FILE_LICENCE ( GPL2_OR_LATER );
@ -38,6 +39,11 @@ static int ib_srpboot ( const char *root_path ) {
drive->blockdev = &scsi->blockdev;
/* FIXME: ugly, ugly hack */
struct srp_device *srp =
container_of ( scsi->backend, struct srp_device, refcnt );
sbft_fill_data ( srp );
register_int13_drive ( drive );
printf ( "Registered as BIOS drive %#02x\n", drive->drive );
printf ( "Booting from BIOS drive %#02x\n", drive->drive );

105
src/arch/i386/interface/pcbios/sbft.c Normal file
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@ -0,0 +1,105 @@
/*
* Copyright (C) 2009 Fen Systems Ltd <mbrown@fensystems.co.uk>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
FILE_LICENCE ( BSD2 );
/** @file
*
* SRP boot firmware table
*
*/
#include <assert.h>
#include <realmode.h>
#include <gpxe/srp.h>
#include <gpxe/ib_srp.h>
#include <gpxe/acpi.h>
#include <gpxe/sbft.h>
#define sbftab __use_data16 ( sbftab )
/** The sBFT used by gPXE */
struct gpxe_sbft __data16 ( sbftab ) = {
/* Table header */
.table = {
/* ACPI header */
.acpi = {
.signature = SBFT_SIG,
.length = sizeof ( sbftab ),
.revision = 1,
.oem_id = "FENSYS",
.oem_table_id = "gPXE",
},
.scsi_offset = offsetof ( typeof ( sbftab ), scsi ),
.srp_offset = offsetof ( typeof ( sbftab ), srp ),
.ib_offset = offsetof ( typeof ( sbftab ), ib ),
},
};
/**
* Fill in all variable portions of sBFT
*
* @v srp SRP device
* @ret rc Return status code
*/
int sbft_fill_data ( struct srp_device *srp ) {
struct sbft_scsi_subtable *sbft_scsi = &sbftab.scsi;
struct sbft_srp_subtable *sbft_srp = &sbftab.srp;
struct sbft_ib_subtable *sbft_ib = &sbftab.ib;
struct ib_srp_parameters *ib_params;
struct segoff rm_sbftab = {
.segment = rm_ds,
.offset = __from_data16 ( &sbftab ),
};
/* Fill in the SCSI subtable */
memcpy ( &sbft_scsi->lun, &srp->lun, sizeof ( sbft_scsi->lun ) );
/* Fill in the SRP subtable */
memcpy ( &sbft_srp->port_ids, &srp->port_ids,
sizeof ( sbft_srp->port_ids ) );
/* Fill in the IB subtable */
assert ( srp->transport == &ib_srp_transport );
ib_params = ib_srp_params ( srp );
memcpy ( &sbft_ib->sgid, &ib_params->sgid, sizeof ( sbft_ib->sgid ) );
memcpy ( &sbft_ib->dgid, &ib_params->dgid, sizeof ( sbft_ib->dgid ) );
memcpy ( &sbft_ib->service_id, &ib_params->service_id,
sizeof ( sbft_ib->service_id ) );
sbft_ib->pkey = ib_params->pkey;
/* Update checksum */
acpi_fix_checksum ( &sbftab.table.acpi );
DBGC ( &sbftab, "SRP Boot Firmware Table at %04x:%04x:\n",
rm_sbftab.segment, rm_sbftab.offset );
DBGC_HDA ( &sbftab, rm_sbftab, &sbftab, sizeof ( sbftab ) );
return 0;
}