From d0abffc2f682975171073b856458b31c79ed3eef Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Mon, 30 Jul 2007 23:58:59 +0100 Subject: [PATCH] Added the AoE boot information table as used by Vampyre's AoE initiator. This table needs to be replaced by something similar to iBFT (i.e. scanned for and identified by signature, rather than being at a fixed address), but it works for now. --- src/usr/aoeboot.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/src/usr/aoeboot.c b/src/usr/aoeboot.c index 54bb5d47..91b80e34 100644 --- a/src/usr/aoeboot.c +++ b/src/usr/aoeboot.c @@ -8,6 +8,26 @@ #include #include +/** + * AoE boot information block + * + * Must be placed at 40:f0. + * + * This structure needs to be replaced by an ACPI table or similar. + */ +struct aoe_boot_info { + /** Must be 0x01 */ + uint8_t one; + /** Client MAC address */ + uint8_t client[ETH_ALEN]; + /** Server MAC address */ + uint8_t server[ETH_ALEN]; + /** Shelf number */ + uint16_t shelf; + /** Slot number */ + uint8_t slot; +} __attribute__ (( packed )); + /** * Guess boot network device * @@ -48,6 +68,19 @@ int aoeboot ( const char *root_path ) { goto error_init; } + /* FIXME: ugly, ugly hack */ + struct aoe_session *aoe = + container_of ( ata.backend, struct aoe_session, refcnt ); + struct aoe_boot_info boot_info; + boot_info.one = 0x01; + memcpy ( boot_info.client, netdev->ll_addr, + sizeof ( boot_info.client ) ); + memcpy ( boot_info.server, aoe->target, + sizeof ( boot_info.server ) ); + boot_info.shelf = aoe->major; + boot_info.slot = aoe->minor; + copy_to_real ( 0x40, 0xf0, &boot_info, sizeof ( boot_info ) ); + drive.drive = find_global_dhcp_num_option ( DHCP_EB_BIOS_DRIVE ); drive.blockdev = &ata.blockdev;