[driver] Add support for the AoE boot firmware table (aBFT)

Signed-off-by: Michael Brown <mbrown@fensystems.co.uk>
ipxe · Sep 13, 2010 · e604684 · e604684
1 parent 43a46e1
commit e604684
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Showing 7 changed files with 491 additions and 251 deletions.
diff --git a/src/driver/abft.c b/src/driver/abft.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#pragma warning(disable:4100)  /* unreferenced formal parameter */
+
+#include <ntddk.h>
+#include <ntstrsafe.h>
+#include "sanbootconf.h"
+#include "nic.h"
+#include "abft.h"
+
+/**
+ * Do nothing with NIC
+ *
+ * @v pdo		Physical device object
+ * @v netcfginstanceid	Interface name within registry
+ * @v opaque		iBFT NIC structure
+ * @ret ntstatus	NT status
+ */
+static NTSTATUS abft_dummy ( PDEVICE_OBJECT pdo,
+			     LPCWSTR netcfginstanceid,
+			     PVOID opaque ) {
+	return STATUS_SUCCESS;
+}
+
+/**
+ * Parse aBFT
+ *
+ * @v acpi		ACPI description header
+ */
+VOID parse_abft ( PACPI_DESCRIPTION_HEADER acpi ) {
+	PABFT_TABLE abft = ( PABFT_TABLE ) acpi;
+	NTSTATUS status;
+
+	/* Dump structure information */
+	DbgPrint ( "Found aBFT target e%d.%d\n", abft->shelf, abft->slot );
+	DbgPrint ( "Found aBFT NIC %02x:%02x:%02x:%02x:%02x:%02x\n",
+		   abft->mac[0], abft->mac[1], abft->mac[2],
+		   abft->mac[3], abft->mac[4], abft->mac[5] );
+
+	/* Check for existence of NIC */
+	status = find_nic ( abft->mac, abft_dummy, NULL );
+	if ( NT_SUCCESS ( status ) ) {
+		DbgPrint ( "Successfully identified aBFT NIC\n" );
+	} else {
+		DbgPrint ( "Could not identify aBFT NIC\n" );
+	}
+}
diff --git a/src/driver/abft.h b/src/driver/abft.h
@@ -0,0 +1,58 @@
+#ifndef _ABFT_H
+#define _ABFT_H
+
+/*
+ * Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/** @file
+ *
+ * AoE boot firmware table
+ *
+ * The working draft specification for the SRP boot firmware table can
+ * be found at
+ *
+ *   http://www.etherboot.org/wiki/aoe/abft
+ *
+ */
+
+#include "acpi.h"
+
+/** AoE Boot Firmware Table signature */
+#define ABFT_SIG "aBFT"
+
+/**
+ * AoE Boot Firmware Table (aBFT)
+ */
+#pragma pack(1)
+typedef struct _ABFT_TABLE {
+	/** ACPI header */
+	ACPI_DESCRIPTION_HEADER acpi;
+	/** AoE shelf */
+	USHORT shelf;
+	/** AoE slot */
+	UCHAR slot;
+	/** Reserved */
+	UCHAR reserved_a;
+	/** MAC address */
+	UCHAR mac[6];
+} ABFT_TABLE, *PABFT_TABLE;
+#pragma pack()
+
+extern VOID parse_abft ( PACPI_DESCRIPTION_HEADER acpi );
+
+#endif /* _ABFT_H */