c1a1980675
According to UEFI spec, a BUFFER_FULL return status in UNDI Transmit command indicates UNDI "Transmit buffer is full. Call Get Status command toempty buffer." So this patch updates the SNP Transmit to return EFI_NOT_READY for BUFFER_FULL to let the call know the buffer full status. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Fu Siyuan <siyuan.fu@intel.com> Reviewed-by: Sriram Subramanian <sriram-s@hpe.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Ye Ting <ting.ye@intel.com>