DEFINE_MODE

typedef struct define_mode
{
        unsigned short  opcode;                 /* verb operation code          */
        unsigned char   reserv2;                /* reserved                     */
        unsigned char   format;                 /* format                       */
        unsigned short  primary_rc;             /* primary return code          */
        unsigned long   secondary_rc;           /* secondary return code        */
        unsigned char   mode_name[8];           /* mode name                    */
        unsigned short  reserv3;                /* reserved                     */
        MODE_CHARS      mode_chars;             /* mode characteristics         */
} DEFINE_MODE;

typedef struct mode_chars
{
        unsigned char   description[RD_LEN]
                                                /* resource description         */
        unsigned short  max_ru_size_upp;        /* max RU size upper bound      */
        unsigned char   receive_pacing_win;     /* receive pacing window        */
        unsigned char   default_ru_size;        /* default RU size to maximize  */
                                                /* performance                  */
        unsigned short  max_neg_sess_lim;       /* max negotiable session limit */
        unsigned short  plu_mode_session_limit; /* LU-mode session limit        */
        unsigned short  min_conwin_src;         /* min source contention winner */
                                                /* sessions                     */
        unsigned char   cos_name[8];            /* class-of-service name        */
        unsigned char   cryptography;           /* cryptography                 */
        unsigned char   compression;            /* compression                  */
        unsigned short  auto_act;               /* initial auto-activation count*/
        unsigned short  min_conloser_src;       /* min source contention loser  */
        unsigned short  max_ru_size_low         /* maximum RU size lower bound  */
        unsigned short  max_receive_pacing_win;
                                                /* maximum receive pacing window*/
        unsigned char   max_compress_lvl;       /* maximum compression level    */
        unsigned char   max_decompression_lvl;  /* maximum decompression level  */
        unsigned char   comp_in_series;         /* support for LZ and RLE       */
        unsigned char   reserv4[24];            /* reserved                     */
} MODE_CHARS;