NAME

       nvme_get_feature_length2  -  Retreive  the  command  payload length for a specific feature
       identifier

SYNOPSIS

       int nvme_get_feature_length2 (int fid , __u32 cdw11 , enum nvme_data_tfr dir , __u32  *len
       );

ARGUMENTS

       fid         Feature identifier, see enum nvme_features_id.

       cdw11       The   cdw11   value   may   affect   the   transfer   (only   known   fid   is
                   NVME_FEAT_FID_HOST_ID)

       dir         Data transfer direction: false - host to controller, true - controller to host
                   may affect the transfer (only known fid is NVME_FEAT_FID_HOST_MEM_BUF).

       len         On success, set to this features payload length in bytes.

RETURN

       0 on success, -1 with errno set to EINVAL if the function did not recognize fid.