From e5f14e5a3258473d6b1973b75cd97b4e75af8380 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Mon, 10 Aug 2009 21:22:31 +0100 Subject: [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. --- src/arch/i386/include/gpxe/sbft.h | 125 ++++++++++++++++++++++++++++ src/arch/i386/interface/pcbios/ib_srpboot.c | 6 ++ src/arch/i386/interface/pcbios/sbft.c | 105 +++++++++++++++++++++++ 3 files changed, 236 insertions(+) create mode 100644 src/arch/i386/include/gpxe/sbft.h create mode 100644 src/arch/i386/interface/pcbios/sbft.c diff --git a/src/arch/i386/include/gpxe/sbft.h b/src/arch/i386/include/gpxe/sbft.h new file mode 100644 index 00000000..30038436 --- /dev/null +++ b/src/arch/i386/include/gpxe/sbft.h @@ -0,0 +1,125 @@ +#ifndef _GPXE_SBFT_H +#define _GPXE_SBFT_H + +/* + * Copyright (C) 2009 Fen Systems Ltd . + * 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 +#include +#include +#include +#include + +/** 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 */ diff --git a/src/arch/i386/interface/pcbios/ib_srpboot.c b/src/arch/i386/interface/pcbios/ib_srpboot.c index ab90c44f..5b9c2c9a 100644 --- a/src/arch/i386/interface/pcbios/ib_srpboot.c +++ b/src/arch/i386/interface/pcbios/ib_srpboot.c @@ -6,6 +6,7 @@ #include #include #include +#include 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 ); diff --git a/src/arch/i386/interface/pcbios/sbft.c b/src/arch/i386/interface/pcbios/sbft.c new file mode 100644 index 00000000..12927c77 --- /dev/null +++ b/src/arch/i386/interface/pcbios/sbft.c @@ -0,0 +1,105 @@ +/* + * Copyright (C) 2009 Fen Systems Ltd . + * 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 +#include +#include +#include +#include +#include + +#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; +} -- cgit v1.2.3-55-g7522