1 Reply Latest reply on Mar 5, 2017 4:39 AM by aviap

    ib_modify_qp error in Windows Server 2012


      Hello, there was a following problem. Ib_modify_qp the function returns INVALID PARAMETR when using it. Use ConnectX 2 on the system Windows Server 2012.

      This problem arose also in the test example in the SDK.

      Was used for work projects with Windows Servera 2008. Had a similar error.


          rc = ib_modify_qp(resources->ph_qp, &p_qp_mod);

          if (rc != IB_SUCCESS) {

              fprintf(stderr, "ib_modify_qp to INIT failed\n");

              return rc;



      How can I solve this problem?