VSW_NUM_MBLKS
uint32_t vsw_chain_len = (VSW_NUM_MBLKS * 0.6);
uint32_t vsw_num_mblks1 = VSW_NUM_MBLKS; /* number of mblks for pool1 */
uint32_t vsw_num_mblks2 = VSW_NUM_MBLKS; /* number of mblks for pool2 */
uint32_t vsw_num_mblks3 = VSW_NUM_MBLKS; /* number of mblks for pool3 */
uint32_t vsw_num_mblks4 = VSW_NUM_MBLKS; /* number of mblks for pool4 */