Initial AoE implementation. Limitations are:

Cannot yet handle reads of more than two sectors

  No retransmission

  No way to find out a target's MAC address (this proof of concept uses
  broadcasts)

These limitations shall not last long!  :)

src/drivers/ata/aoedev.c

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2006 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.
+ */
+
+#include <stddef.h>
+#include <gpxe/aoe.h>
+
+/** @file
+ *
+ * AoE ATA device
+ *
+ */
+
+/**
+ * Issue ATA command via AoE device
+ *
+ * @v ata		ATA device
+ * @v command		ATA command
+ * @ret rc		Return status code
+ */
+static int aoe_command ( struct ata_device *ata,
+			 struct ata_command *command ) {
+	struct aoe_device *aoedev
+		= container_of ( ata, struct aoe_device, ata );
+
+	return aoe_issue ( &aoedev->aoe, command );
+}
+
+/**
+ * Initialise AoE device
+ *
+ * @v aoedev		AoE device
+ */
+int init_aoedev ( struct aoe_device *aoedev ) {
+	aoedev->ata.command = aoe_command;
+	aoe_open ( &aoedev->aoe );
+	return init_atadev ( &aoedev->ata );
+}