• David Bond's avatar
    ibft: Expose iBFT acpi header via sysfs · b3c8eb50
    David Bond authored
    Some ethernet adapter vendors are supplying products which support optional
    (payed license) features. On some adapters this includes a hardware iscsi
    initiator.  The same adapters in a normal (no extra licenses) mode of
    operation can be used as a software iscsi initiator.  In addition, software
    iscsi boot initiators are becoming a standard part of many vendors uefi
    implementations.  This is creating difficulties during early boot/install
    determining the proper configuration method for these adapters when they
    are used as a boot device.
    
    The attached patch creates sysfs entries to expose information from the
    acpi header of the ibft table.  This information allows for a method to
    easily determining if an ibft table was created by a ethernet card's
    firmware or the system uefi/bios.  In the case of a hardware initiator this
    information in combination with the pci vendor and device id can be used
    to ascertain any vendor specific behaviors that need to be accommodated.
    Reviewed-by: 's avatarLee Duncan <lduncan@suse.com>
    Signed-off-by: 's avatarDavid Bond <dbond@suse.com>
    Signed-off-by: 's avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
    b3c8eb50
iscsi_boot_sysfs.h 4.09 KB