diff options
Diffstat (limited to 'contrib/syslinux-4.02/gpxe/src/arch/i386/interface/pcbios/sbft.c')
| -rw-r--r-- | contrib/syslinux-4.02/gpxe/src/arch/i386/interface/pcbios/sbft.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/gpxe/src/arch/i386/interface/pcbios/sbft.c b/contrib/syslinux-4.02/gpxe/src/arch/i386/interface/pcbios/sbft.c new file mode 100644 index 0000000..12927c7 --- /dev/null +++ b/contrib/syslinux-4.02/gpxe/src/arch/i386/interface/pcbios/sbft.c @@ -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; +} |