irdma_vchnl_reg_field_info
struct irdma_vchnl_reg_field_info *regfld_array = NULL;
(struct irdma_vchnl_reg_field_info *)®_array[rindex + 1];
buf_len += sizeof(struct irdma_vchnl_reg_field_info);
IRDMA_VCHNL_REGFLD_COUNT * sizeof(struct irdma_vchnl_reg_field_info))