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Added the AoE boot information table as used by Vampyre's AoE

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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.
This commit is contained in:
Michael Brown 2007-07-30 23:58:59 +01:00
parent 847ac4f336
commit d0abffc2f6
1 changed files with 33 additions and 0 deletions
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33
src/usr/aoeboot.c
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@ -8,6 +8,26 @@
#include <int13.h>
#include <usr/aoeboot.h>
/**
* 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;