I was trying to modify a UD QP to init state and the modify call
was failing with an error code of 22, I am including the code snippet
which does create/ modify of the QP:
memset (&qp_init_attr, 0, sizeof (qp_init_attr));
qp_init_attr.cap.max_recv_wr = 100;
qp_init_attr.cap.max_send_wr = 100;
qp_init_attr.cap.max_recv_sge = 10;
qp_init_attr.cap.max_send_sge = 10;
qp_init_attr.cap.max_inline_data = 0;
qp_init_attr.recv_cq = ud_rcq_hndl; /* Created earlier */
qp_init_attr.send_cq = ud_scq_hndl; /* Created earlier */
qp_init_attr.sq_sig_all = 0;
qp_init_attr.qp_type = IBV_QPT_UD;
ud_qp_hndl= ibv_create_qp (ptag, &qp_init_attr); /* ptag allocated
earlier */
memset (&qp_attr, 0, sizeof (qp_attr));
qp_attr.qp_state = IBV_QPS_INIT;
qp_attr.pkey_index = 0;
qp_attr.port_num = 0;
qp_attr.qkey = 0;
if (ret = ibv_modify_qp(ud_qp_hndl, &qp_attr,
IBV_QP_STATE |
IBV_QP_PKEY_INDEX |
IBV_QP_PORT |
IBV_QP_QKEY))
error : 22
Thanks,
Amith
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