NAME ibv_alloc_dm, ibv_free_dm, ibv_memcpy_to/from_dm – allocate or free a device memory buffer (DMs) and perform memory copy to or from it SYNOPSIS #include <infiniband/verbs.h> struct ibv_dm *ibv_alloc_dm(struct ibv_context *context, struct ibv_alloc_dm_attr *attr); int ibv_free_dm(struct ibv_dm *dm); DESCRIPTION ibv_alloc_dm() allocates a device memory buffer for the RDMA device context context. The argument attr is a pointer…
NAME ibv_init_ah_from_wc, ibv_create_ah_from_wc – initialize or create an address handle (AH) from a work completion SYNOPSIS #include <infiniband/verbs.h> int ibv_init_ah_from_wc(struct ibv_context *context, uint8_t port_num, struct ibv_wc *wc, struct ibv_grh *grh, struct ibv_ah_attr *ah_attr); struct ibv_ah *ibv_create_ah_from_wc(struct ibv_pd *pd, struct ibv_wc *wc, struct ibv_grh *grh, uint8_t port_num); DESCRIPTION ibv_init_ah_from_wc() initializes the address handle (AH) attribute structure…
NAME ibv_inc_rkey – creates a new rkey from the given one SYNOPSIS #include <infiniband/verbs.h> uint32_t ibv_inc_rkey(uint32_t rkey); DESCRIPTION ibv_inc_rkey() Increases the 8 LSB of rkey and returns the new value. RETURN VALUE ibv_inc_rkey() returns the new rkey. NOTES The verb generates a new rkey that is different from the previous one on its tag part…
NAME ibv_get_srq_num – return srq number associated with the given shared receive queue (SRQ) SYNOPSIS #include <infiniband/verbs.h> int ibv_get_srq_num(struct ibv_srq *srq, uint32_t *srq_num); DESCRIPTION ibv_get_srq_num() return srq number associated with the given shared receive queue The argument srq is an ibv_srq struct, as defined in <infiniband/verbs.h>. srq_num is an output parameter that holds the returned…
NAME ibv_get_pkey_index – obtain the index in the P_Key table of a P_Key SYNOPSIS #include <infiniband/verbs.h> int ibv_get_pkey_index(struct ibv_context *context, uint8_t port_num, __be16 pkey); DESCRIPTION Every InfiniBand HCA maintains a P_Key table for each of its ports that is indexed by an integer and with a P_Key in each element. Certain InfiniBand data structures that…
NAME ibv_get_device_name – get an RDMA device’s name SYNOPSIS #include <infiniband/verbs.h> const char *ibv_get_device_name(struct ibv_device *device); DESCRIPTION ibv_get_device_name() returns a human-readable name associated with the RDMA device device. RETURN VALUE ibv_get_device_name() returns a pointer to the device name, or NULL if the request fails. SEE ALSO ibv_get_device_guid(3), ibv_get_device_list(3), ibv_open_device(3) AUTHOR Dotan Barak <dotanba [at] gmail.com>…
NAME ibv_get_device_list, ibv_free_device_list – get and release list of available RDMA devices SYNOPSIS #include <infiniband/verbs.h> struct ibv_device **ibv_get_device_list(int *num_devices); void ibv_free_device_list(struct ibv_device **list); DESCRIPTION ibv_get_device_list() returns a NULL-terminated array of RDMA devices currently available. The argument num_devices is optional; if not NULL, it is set to the number of devices returned in the array. ibv_free_device_list()…
NAME ibv_get_device_guid – get an RDMA device’s GUID SYNOPSIS #include <infiniband/verbs.h> uint64_t ibv_get_device_guid(struct ibv_device *device); DESCRIPTION ibv_get_device_name() returns the Global Unique IDentifier (GUID) of the RDMA device device. RETURN VALUE ibv_get_device_guid() returns the GUID of the device in network byte order. SEE ALSO ibv_get_device_list(3), ibv_get_device_name(3), ibv_open_device(3) AUTHOR Dotan Barak <dotanba [at] gmail.com> Index
NAME ibv_get_cq_event, ibv_ack_cq_events – get and acknowledge completion queue (CQ) events SYNOPSIS #include <infiniband/verbs.h> int ibv_get_cq_event(struct ibv_comp_channel *channel, struct ibv_cq **cq, void **cq_context); void ibv_ack_cq_events(struct ibv_cq *cq, unsigned int nevents); DESCRIPTION ibv_get_cq_event() waits for the next completion event in the completion event channel channel. Fills the arguments cq with the CQ that got the event…
NAME ibv_get_async_event, ibv_ack_async_event – get or acknowledge asynchronous events SYNOPSIS #include <infiniband/verbs.h> int ibv_get_async_event(struct ibv_context *context, struct ibv_async_event *event); void ibv_ack_async_event(struct ibv_async_event *event); DESCRIPTION ibv_get_async_event() waits for the next async event of the RDMA device context context and returns it through the pointer event, which is an ibv_async_event struct, as defined in <infiniband/verbs.h>. struct ibv_async_event…
NAME ibv_alloc_dm, ibv_free_dm, ibv_memcpy_to/from_dm – allocate or free a device memory buffer (DMs) and perform memory copy to or from it SYNOPSIS #include <infiniband/verbs.h> struct ibv_dm *ibv_alloc_dm(struct ibv_context *context, struct ibv_alloc_dm_attr *attr); int ibv_free_dm(struct ibv_dm *dm); DESCRIPTION ibv_alloc_dm() allocates a device memory buffer for the RDMA device context context. The argument attr is a pointer…
NAME ibv_get_device_list, ibv_free_device_list – get and release list of available RDMA devices SYNOPSIS #include <infiniband/verbs.h> struct ibv_device **ibv_get_device_list(int *num_devices); void ibv_free_device_list(struct ibv_device **list); DESCRIPTION ibv_get_device_list() returns a NULL-terminated array of RDMA devices currently available. The argument num_devices is optional; if not NULL, it is set to the number of devices returned in the array. ibv_free_device_list()…
NAME ibv_fork_init – initialize libibverbs to support fork() SYNOPSIS #include <infiniband/verbs.h> int ibv_fork_init(void); DESCRIPTION ibv_fork_init() initializes libibverbs’s data structures to handle fork() function calls correctly and avoid data corruption, whether fork() is called explicitly or implicitly (such as in system()). It is not necessary to use this function if all parent process threads are always…
NAME ibv_event_type_str – Return string describing event_type enum value ibv_node_type_str – Return string describing node_type enum value ibv_port_state_str – Return string describing port_state enum value SYNOPSIS #include <infiniband/verbs.h> const char *ibv_event_type_str(enum ibv_event_type event_type); const char *ibv_node_type_str(enum ibv_node_type node_type); const char *ibv_port_state_str(enum ibv_port_state port_state); DESCRIPTION ibv_node_type_str() returns a string describing the node type enum value node_type….
NAME ibv_attach_mcast, ibv_detach_mcast – attach and detach a queue pair (QPs) to/from a multicast group SYNOPSIS #include <infiniband/verbs.h> int ibv_attach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t lid); int ibv_detach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t lid); DESCRIPTION ibv_attach_mcast() attaches the QP qp to the multicast group having MGID gid and MLID lid. ibv_detach_mcast()…
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, 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, 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…