SysTutorials Posts

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_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_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_open_xrcd, ibv_close_xrcd – open or close an XRC protection domain (XRCDs) SYNOPSIS #include <infiniband/verbs.h> struct ibv_xrcd *ibv_open_xrcd(struct ibv_context *context, struct ibv_xrcd_init_attr *xrcd_init_attr); int ibv_close_xrcd(struct ibv_xrcd *xrcd); DESCRIPTION ibv_open_xrcd() open an XRC domain for the RDMA device context context xrcd_init_attr is an ibv_xrcd_init_attr struct, as defined in <infiniband/verbs.h>. struct ibv_xrcd_init_attr { uint32_t comp_mask; /* Identifies…

NAME ibv_open_device, ibv_close_device – open and close an RDMA device context SYNOPSIS #include <infiniband/verbs.h> struct ibv_context *ibv_open_device(struct ibv_device *device); int ibv_close_device(struct ibv_context *context); DESCRIPTION ibv_open_device() opens the device device and creates a context for further use. ibv_close_device() closes the device context context. RETURN VALUE ibv_open_device() returns a pointer to the allocated device context, or NULL…

NAME ibv_bind_mw – post a request to bind a type 1 memory window to a memory region SYNOPSIS #include <infiniband/verbs.h> int ibv_bind_mw(struct ibv_qp *qp, struct ibv_mw *mw, struct ibv_mw_bind *mw_bind); DESCRIPTION ibv_bind_mw() posts to the queue pair qp a request to bind the memory window mw according to the details in mw_bind. The argument mw_bind…

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_attach_counters_point_flow – attach individual counter definition to a flow object SYNOPSIS #include <infiniband/verbs.h> int ibv_attach_counters_point_flow(struct ibv_counters *counters, struct ibv_counter_attach_attr *counter_attach_attr, struct ibv_flow *flow); DESCRIPTION Attach counters point are a family of APIs to attach individual counter description definition to a verb object at a specific index location. Counters object will start collecting values after…

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_parent_domain(), ibv_dealloc_pd() – allocate and deallocate the parent domain object SYNOPSIS #include <infiniband/verbs.h> struct ibv_pd *ibv_alloc_parent_domain(struct ibv_context *context, structibv_parent_domain_init_attr *attr); DESCRIPTION ibv_alloc_parent_domain() allocates a parent domain object for the RDMA device context context. The parent domain object extends the normal protection domain with additional objects, such as a thread domain. A parent domain is…

NAME ibv_alloc_null_mr – allocate a null memory region (MR) SYNOPSIS #include <infiniband/verbs.h> struct ibv_mr *ibv_alloc_null_mr(struct ibv_pd *pd); DESCRIPTION ibv_alloc_null_mr() allocates a null memory region (MR) that is associated with the protection domain pd. A null MR discards all data written to it, and always returns 0 on read. It has the maximum length and only…

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_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_advise_mr – Gives advice or directions to the kernel about an address range belongs to a memory region (MR). SYNOPSIS #include <infiniband/verbs.h> int ibv_advise_mr(struct ibv_pd *pd, enum ibv_advise_mr_advice advice, uint32_t flags, struct ibv_sge *sg_list, uint32_t num_sge) DESCRIPTION ibv_advise_mr() Give advice or directions to the kernel about an address range belonging to a memory region…

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…

QuantLib::SwapIndex – base class for swap-rate indexes Synopsis#include <ql/indexes/swapindex.hpp> Inherits QuantLib::InterestRateIndex. Inherited by ChfLiborSwapIsdaFix, EuriborSwapIfrFix, EuriborSwapIsdaFixA, EuriborSwapIsdaFixB, EurLiborSwapIfrFix, EurLiborSwapIsdaFixA, EurLiborSwapIsdaFixB, GbpLiborSwapIsdaFix, JpyLiborSwapIsdaFixAm, JpyLiborSwapIsdaFixPm, UsdLiborSwapIsdaFixAm, and UsdLiborSwapIsdaFixPm. Public Member FunctionsSwapIndex (const std::string &familyName, const Period &tenor, Natural settlementDays, Currency currency, const Calendar &calendar, const Period &fixedLegTenor, BusinessDayConvention fixedLegConvention, const DayCounter &fixedLegDayCounter, const boost::shared_ptr< IborIndex > &iborIndex)…

NAME ibnd_iter_nodes, ibnd_iter_nodes_type – given a fabric object and a function itterate over the nodes in the fabric. SYNOPSIS #include <infiniband/ibnetdisc.h> void ibnd_iter_nodes(ibnd_fabric_t *fabric, ibnd_iter_func_t func, void *user_data) void ibnd_iter_nodes_type(ibnd_fabric_t *fabric, ibnd_iter_func_t func, ibnd_node_type_t type, void *user_data) DESCRIPTION ibnd_iter_nodes() Itterate through all the nodes in the fabric and call "func" on them. ibnd_iter_nodes_type() The same…

NAME ibnd_find_node_guid, ibnd_find_node_dr – given a fabric object find the node object within it which matches the guid or directed route specified. SYNOPSIS #include <infiniband/ibnetdisc.h> ibnd_node_t *ibnd_find_node_guid(ibnd_fabric_t *fabric, uint64_t guid) ibnd_node_t *ibnd_find_node_dr(ibnd_fabric_t *fabric, char *dr_str) DESCRIPTION ibnd_find_node_guid() Given a fabric object and a guid, return the ibnd_node_t object with that node guid. ibnd_find_node_dr() Given a…