1 /* 2 * Copyright (C) 2009 Fen Systems Ltd <mbrown (at) fensystems.co.uk>. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 20 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 21 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 28 * OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 FILE_LICENCE ( BSD2 ); 32 33 /** @file 34 * 35 * SRP boot firmware table 36 * 37 */ 38 39 #include <assert.h> 40 #include <realmode.h> 41 #include <gpxe/srp.h> 42 #include <gpxe/ib_srp.h> 43 #include <gpxe/acpi.h> 44 #include <gpxe/sbft.h> 45 46 #define sbftab __use_data16 ( sbftab ) 47 /** The sBFT used by gPXE */ 48 struct gpxe_sbft __data16 ( sbftab ) = { 49 /* Table header */ 50 .table = { 51 /* ACPI header */ 52 .acpi = { 53 .signature = SBFT_SIG, 54 .length = sizeof ( sbftab ), 55 .revision = 1, 56 .oem_id = "FENSYS", 57 .oem_table_id = "gPXE", 58 }, 59 .scsi_offset = offsetof ( typeof ( sbftab ), scsi ), 60 .srp_offset = offsetof ( typeof ( sbftab ), srp ), 61 .ib_offset = offsetof ( typeof ( sbftab ), ib ), 62 }, 63 }; 64 65 /** 66 * Fill in all variable portions of sBFT 67 * 68 * @v srp SRP device 69 * @ret rc Return status code 70 */ 71 int sbft_fill_data ( struct srp_device *srp ) { 72 struct sbft_scsi_subtable *sbft_scsi = &sbftab.scsi; 73 struct sbft_srp_subtable *sbft_srp = &sbftab.srp; 74 struct sbft_ib_subtable *sbft_ib = &sbftab.ib; 75 struct ib_srp_parameters *ib_params; 76 struct segoff rm_sbftab = { 77 .segment = rm_ds, 78 .offset = __from_data16 ( &sbftab ), 79 }; 80 81 /* Fill in the SCSI subtable */ 82 memcpy ( &sbft_scsi->lun, &srp->lun, sizeof ( sbft_scsi->lun ) ); 83 84 /* Fill in the SRP subtable */ 85 memcpy ( &sbft_srp->port_ids, &srp->port_ids, 86 sizeof ( sbft_srp->port_ids ) ); 87 88 /* Fill in the IB subtable */ 89 assert ( srp->transport == &ib_srp_transport ); 90 ib_params = ib_srp_params ( srp ); 91 memcpy ( &sbft_ib->sgid, &ib_params->sgid, sizeof ( sbft_ib->sgid ) ); 92 memcpy ( &sbft_ib->dgid, &ib_params->dgid, sizeof ( sbft_ib->dgid ) ); 93 memcpy ( &sbft_ib->service_id, &ib_params->service_id, 94 sizeof ( sbft_ib->service_id ) ); 95 sbft_ib->pkey = ib_params->pkey; 96 97 /* Update checksum */ 98 acpi_fix_checksum ( &sbftab.table.acpi ); 99 100 DBGC ( &sbftab, "SRP Boot Firmware Table at %04x:%04x:\n", 101 rm_sbftab.segment, rm_sbftab.offset ); 102 DBGC_HDA ( &sbftab, rm_sbftab, &sbftab, sizeof ( sbftab ) ); 103 104 return 0; 105 } 106
