SysTutorials Posts

NAME ibv_create_flow, ibv_destroy_flow – create or destroy flow steering rules SYNOPSIS #include <infiniband/verbs.h> struct ibv_flow *ibv_create_flow(struct ibv_qp *qp, struct ibv_flow_attr *flow_attr); int ibv_destroy_flow(struct ibv_flow *flow_id); DESCRIPTION ibv_create_flow() allows a user application QP qp to be attached into a specified flow flow which is defined in <infiniband/verbs.h> struct ibv_flow_attr { uint32_t comp_mask; /* Future extendibility */…

NAME ibv_create_cq, ibv_destroy_cq – create or destroy a completion queue (CQ) SYNOPSIS #include <infiniband/verbs.h> struct ibv_cq *ibv_create_cq(struct ibv_context *context, int cqe, void *cq_context, struct ibv_comp_channel *channel, int comp_vector); int ibv_destroy_cq(struct ibv_cq *cq); DESCRIPTION ibv_create_cq() creates a completion queue (CQ) with at least cqe entries for the RDMA device context context. The pointer cq_context will be…

NAME ibv_create_counters, ibv_destroy_counters – Create or destroy a counters handle SYNOPSIS #include <infiniband/verbs.h> struct ibv_counters * ibv_create_counters(struct ibv_context *context, struct ibv_counters_init_attr *init_attr); int ibv_destroy_counters(struct ibv_counters *counters); DESCRIPTION ibv_create_counters() creates a new counters handle for the RDMA device context. An ibv_counters handle can be attached to a verbs resource (e.g.: QP, WQ, Flow) statically when these…

NAME ibv_create_comp_channel, ibv_destroy_comp_channel – create or destroy a completion event channel SYNOPSIS #include <infiniband/verbs.h> struct ibv_comp_channel *ibv_create_comp_channel(struct ibv_context *context); int ibv_destroy_comp_channel(struct ibv_comp_channel *channel); DESCRIPTION ibv_create_comp_channel() creates a completion event channel for the RDMA device context context. ibv_destroy_comp_channel() destroys the completion event channel channel. RETURN VALUE ibv_create_comp_channel() returns a pointer to the created completion event channel,…

NAME ibv_create_ah, ibv_destroy_ah – create or destroy an address handle (AH) SYNOPSIS #include <infiniband/verbs.h> struct ibv_ah *ibv_create_ah(struct ibv_pd *pd, struct ibv_ah_attr *attr); int ibv_destroy_ah(struct ibv_ah *ah); DESCRIPTION ibv_create_ah() creates an address handle (AH) associated with the protection domain pd. The argument attr is an ibv_ah_attr struct, as defined in <infiniband/verbs.h>. struct ibv_ah_attr { struct ibv_global_route…

NAME ibv_reg_mr, ibv_reg_mr_iova, ibv_dereg_mr – register or deregister a memory region (MR) SYNOPSIS #include <infiniband/verbs.h> struct ibv_mr *ibv_reg_mr(struct ibv_pd *pd, void *addr, size_t length, int access); struct ibv_mr *ibv_reg_mr_iova(struct ibv_pd *pd, void *addr, size_t length, uint64_t hca_va, int access); int ibv_dereg_mr(struct ibv_mr *mr); DESCRIPTION ibv_reg_mr() registers a memory region (MR) associated with the protection domain…

NAME ibv_alloc_td(), ibv_dealloc_td() – allocate and deallocate thread domain object SYNOPSIS #include <infiniband/verbs.h> struct ibv_td *ibv_alloc_td(struct ibv_context *context, struct ibv_td_init_attr *init_attr); int ibv_dealloc_td(struct ibv_td *td); DESCRIPTION ibv_alloc_td() allocates a thread domain object for the RDMA device context context. The thread domain object defines how the verbs libraries and provider will use locks and additional hardware…

NAME ibv_alloc_pd, ibv_dealloc_pd – allocate or deallocate a protection domain (PDs) SYNOPSIS #include <infiniband/verbs.h> struct ibv_pd *ibv_alloc_pd(struct ibv_context *context); int ibv_dealloc_pd(struct ibv_pd *pd); DESCRIPTION ibv_alloc_pd() allocates a PD for the RDMA device context context. ibv_dealloc_pd() deallocates the PD pd. RETURN VALUE ibv_alloc_pd() returns a pointer to the allocated PD, or NULL if the request fails….

NAME ibv_alloc_mw, ibv_dealloc_mw – allocate or deallocate a memory window (MW) SYNOPSIS #include <infiniband/verbs.h> struct ibv_mw *ibv_alloc_mw(struct ibv_pd *pd, enum ibv_mw_type type); int ibv_dealloc_mw(struct ibv_mw *mw); DESCRIPTION ibv_alloc_mw() allocates a memory window (MW) associated with the protection domain pd. The MW’s type (1 or 2A/2B) is type. The MW is created not bound. For it…

NAME ibv_create_wq, ibv_destroy_wq – create or destroy a Work Queue (WQ). SYNOPSIS #include <infiniband/verbs_exp.h> struct ibv_wq *ibv_create_wq(struct ibv_context *context, struct ibv_wq_init_attr *wq_init_attr); int ibv_destroy_wq(struct ibv_wq *wq); DESCRIPTION ibv_create_wq() creates a WQ associated with the ibv_context context. The argument wq_init_attr is an ibv_wq_init_attr struct, as defined in <infiniband/verbs.h>. struct ibv_wq_init_attr { void *wq_context; /* Associated context…

NAME ibv_create_srq_ex, ibv_destroy_srq – create or destroy a shared receive queue (SRQ) SYNOPSIS #include <infiniband/verbs.h> struct ibv_srq *ibv_create_srq_ex(struct ibv_context *context, struct ibv_srq_init_attr_ex *srq_init_attr_ex); int ibv_destroy_srq(struct ibv_srq *srq); DESCRIPTION ibv_create_srq_ex() creates a shared receive queue (SRQ) supporting both basic and xrc modes. The argument srq_init_attr_ex is an ibv_srq_init_attr_ex struct, as defined in <infiniband/verbs.h>. struct ibv_srq_init_attr_ex {…

NAME ibv_create_srq, ibv_destroy_srq – create or destroy a shared receive queue (SRQ) SYNOPSIS #include <infiniband/verbs.h> struct ibv_srq *ibv_create_srq(struct ibv_pd *pd, struct ibv_srq_init_attr *srq_init_attr); int ibv_destroy_srq(struct ibv_srq *srq); DESCRIPTION ibv_create_srq() creates a shared receive queue (SRQ) associated with the protection domain pd. The argument srq_init_attr is an ibv_srq_init_attr struct, as defined in <infiniband/verbs.h>. struct ibv_srq_init_attr {…

NAME ibv_create_rwq_ind_table, ibv_destroy_rwq_ind_table – create or destroy a Receive Work Queue Indirection Table (RWQ IND TBL). SYNOPSIS #include <infiniband/verbs.h> struct ibv_rwq_ind_table *ibv_create_rwq_ind_table(struct ibv_context *context, struct ibv_rwq_ind_table_init_attr *init_attr); int ibv_destroy_rwq_ind_table(struct ibv_rwq_ind_table *rwq_ind_table); DESCRIPTION ibv_create_rwq_ind_table() creates a RWQ IND TBL associated with the ibv_context context. The argument init_attr is an ibv_rwq_ind_table_init_attr struct, as defined in <infiniband/verbs.h>. struct…

NAME ibv_create_qp_ex, ibv_destroy_qp – create or destroy a queue pair (QP) SYNOPSIS #include <infiniband/verbs.h> struct ibv_qp *ibv_create_qp_ex(struct ibv_context *context, struct ibv_qp_init_attr_ex *qp_init_attr); int ibv_destroy_qp(struct ibv_qp *qp); DESCRIPTION ibv_create_qp_ex() creates a queue pair (QP) associated with the protection domain pd. The argument qp_init_attr_ex is an ibv_qp_init_attr_ex struct, as defined in <infiniband/verbs.h>. struct ibv_qp_init_attr_ex { void *qp_context;…

NAME ibv_create_qp, ibv_destroy_qp – create or destroy a queue pair (QP) SYNOPSIS #include <infiniband/verbs.h> struct ibv_qp *ibv_create_qp(struct ibv_pd *pd, struct ibv_qp_init_attr *qp_init_attr); int ibv_destroy_qp(struct ibv_qp *qp); DESCRIPTION ibv_create_qp() creates a queue pair (QP) associated with the protection domain pd. The argument qp_init_attr is an ibv_qp_init_attr struct, as defined in <infiniband/verbs.h>. struct ibv_qp_init_attr { void *qp_context;…

NAME ibv_flow_action_esp – Flow action esp for verbs SYNOPSIS #include <infiniband/verbs.h> struct ibv_flow_action * ibv_create_flow_action_esp(struct ibv_context *ctx, struct ibv_flow_action_esp *esp); int ibv_modify_flow_action_esp(struct ibv_flow_action *action, struct ibv_flow_action_esp *esp); int ibv_destroy_flow_action(struct ibv_flow_action *action); DESCRIPTION An IPSEC ESP flow steering action allows a flow steering rule to decrypt or encrypt a packet after matching. Each action contains the…

NAME ibv_create_flow, ibv_destroy_flow – create or destroy flow steering rules SYNOPSIS #include <infiniband/verbs.h> struct ibv_flow *ibv_create_flow(struct ibv_qp *qp, struct ibv_flow_attr *flow_attr); int ibv_destroy_flow(struct ibv_flow *flow_id); DESCRIPTION ibv_create_flow() allows a user application QP qp to be attached into a specified flow flow which is defined in <infiniband/verbs.h> struct ibv_flow_attr { uint32_t comp_mask; /* Future extendibility */…

NAME ibv_create_cq_ex – create a completion queue (CQ) SYNOPSIS #include <infiniband/verbs.h> struct ibv_cq_ex *ibv_create_cq_ex(struct ibv_context *context, struct ibv_cq_init_attr_ex *cq_attr); DESCRIPTION ibv_create_cq_ex() creates a completion queue (CQ) for RDMA device context context. The argument cq_attr is a pointer to struct ibv_cq_init_attr_ex as defined in <infiniband/verbs.h>. struct ibv_cq_init_attr_ex { int cqe; /* Minimum number of entries required…

NAME ibv_create_cq, ibv_destroy_cq – create or destroy a completion queue (CQ) SYNOPSIS #include <infiniband/verbs.h> struct ibv_cq *ibv_create_cq(struct ibv_context *context, int cqe, void *cq_context, struct ibv_comp_channel *channel, int comp_vector); int ibv_destroy_cq(struct ibv_cq *cq); DESCRIPTION ibv_create_cq() creates a completion queue (CQ) with at least cqe entries for the RDMA device context context. The pointer cq_context will be…

NAME ibv_create_counters, ibv_destroy_counters – Create or destroy a counters handle SYNOPSIS #include <infiniband/verbs.h> struct ibv_counters * ibv_create_counters(struct ibv_context *context, struct ibv_counters_init_attr *init_attr); int ibv_destroy_counters(struct ibv_counters *counters); DESCRIPTION ibv_create_counters() creates a new counters handle for the RDMA device context. An ibv_counters handle can be attached to a verbs resource (e.g.: QP, WQ, Flow) statically when these…