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Posts Tagged ‘Posting Work Request ’

What is a loopback message? A loopback message is a message that was sent in an RDMA device, in a specific port from one QP to another/same QP on that device at the same port; the destination address of the...

Let's start with the bottom line: the verbs API is fully thread safe and verbs can be called from every thread in the process. Part of the thread safe is implemented at the libibverbs level and part of it is...

int ibv_post_srq_recv(struct ibv_srq *srq, struct ibv_recv_wr *recv_wr, struct ibv_recv_wr **bad_recv_wr);int ibv_post_srq_recv(struct ibv_srq *srq, struct ibv_recv_wr *recv_wr, struct ibv_recv_wr **bad_recv_wr); Description ibv_post_srq_recv() posts a linked list of Work Requests (WRs) to a Shared Receive Queue (SRQ). ibv_post_srq_recv() go over all of...

int ibv_post_recv(struct ibv_qp *qp, struct ibv_recv_wr *wr, struct ibv_recv_wr **bad_wr);int ibv_post_recv(struct ibv_qp *qp, struct ibv_recv_wr *wr, struct ibv_recv_wr **bad_wr); Description ibv_post_recv() posts a linked list of Work Requests (WRs) to the Receive Queue of a Queue Pair (QP). ibv_post_recv() go...

int ibv_post_send(struct ibv_qp *qp, struct ibv_send_wr *wr, struct ibv_send_wr **bad_wr);int ibv_post_send(struct ibv_qp *qp, struct ibv_send_wr *wr, struct ibv_send_wr **bad_wr); Description ibv_post_send() posts a linked list of Work Requests (WRs) to the Send Queue of a Queue Pair (QP). ibv_post_send() go...