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-rw-r--r--gpxe/src/arch/i386/interface/pcbios/sbft.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/gpxe/src/arch/i386/interface/pcbios/sbft.c b/gpxe/src/arch/i386/interface/pcbios/sbft.c
new file mode 100644
index 00000000..12927c77
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+++ b/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;
+}