• Yi Zou's avatar
    [SCSI] libfc: add support of large receive offload by ddp in fc_fcp · b277d2aa
    Yi Zou authored
    
    
    When LLD supports direct data placement (ddp) for large receive of an scsi
    i/o coming into fc_fcp, we call into libfc_function_template's ddp_setup()
    to prepare for a ddp of large receive for this read I/O. When I/O is complete,
    we call the corresponding ddp_done() to get the length of data ddped as well
    as to let LLD do clean up.
    
    fc_fcp_ddp_setup()/fc_fcp_ddp_done() are added to setup and complete a ddped
    read I/O described by the given fc_fcp_pkt. They would call into corresponding
    ddp_setup/ddp_done implemented by the fcoe layer. Eventually, fcoe layer calls
    into LLD's ddp_setup/ddp_done provided through net_device
    
    Signed-off-by: default avatarYi Zou <yi.zou@intel.com>
    Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
    b277d2aa