Linux Manuals

NAME mlx5dv_create_qp – creates a queue pair (QP) SYNOPSIS #include <infiniband/mlx5dv.h> struct ibv_qp *mlx5dv_create_qp(struct ibv_context *context, struct ibv_qp_init_attr_ex *qp_attr, struct mlx5dv_qp_init_attr *mlx5_qp_attr) DESCRIPTION mlx5dv_create_qp() creates a queue pair (QP) with specific driver properties. ARGUMENTS Please see ibv_create_qp_ex(3) man page for context and qp_attr. mlx5_qp_attr struct mlx5dv_qp_init_attr { uint64_t comp_mask; uint32_t create_flags; struct mlx5dv_dc_init_attr dc_init_attr; uint64_t…

NAME mlx5dv_create_mkey – Creates an indirect mkey mlx5dv_create_mkey – Destroys an indirect mkey SYNOPSIS #include <infiniband/mlx5dv.h> struct mlx5dv_mkey_init_attr { struct ibv_pd *pd; uint32_t create_flags; uint16_t max_entries; }; struct mlx5dv_mkey { uint32_t lkey; uint32_t rkey; }; struct mlx5dv_mkey * mlx5dv_create_mkey(struct mlx5dv_mkey_init_attr *mkey_init_attr); int mlx5dv_destroy_mkey(struct mlx5dv_mkey *mkey); DESCRIPTION Create / destroy an indirect mkey. Create an indirect…

NAME mlx5dv_create_flow_matcher – creates a matcher to be used with mlx5dv_create_flow(3) SYNOPSIS #include <infiniband/mlx5dv.h> struct mlx5dv_flow_matcher * mlx5dv_create_flow_matcher(struct ibv_context *context, struct mlx5dv_flow_matcher_attr *attr) DESCRIPTION mlx5dv_create_flow_matcher() creates a flow matcher (mask) to be used with mlx5dv_create_flow(3). ARGUMENTS Please see ibv_open_device(3) for context. attr struct mlx5dv_flow_matcher_attr { enum ibv_flow_attr_type type; uint32_t flags; /* From enum ibv_flow_flags */…

NAME mlx5dv_create_flow_action_packet_reformat – Flow action reformat packet for mlx5 provider SYNOPSIS #include <infiniband/mlx5dv.h> struct ibv_flow_action * mlx5dv_create_flow_action_packet_reformat(struct ibv_context *ctx, size_t data_sz, void *data, enum mlx5dv_flow_action_packet_reformat_type reformat_type, enum mlx5dv_flow_table_type ft_type) DESCRIPTION Create a packet reformat flow steering action. It allows adding/removing packet headers. ARGUMENTS ctx RDMA device context to create the action on. data_sz The size…

NAME mlx5dv_create_flow_action_modify_header – Flow action modify header for mlx5 provider SYNOPSIS #include <infiniband/mlx5dv.h> struct ibv_flow_action * mlx5dv_create_flow_action_modify_header(struct ibv_context *ctx, size_t actions_sz, uint64_t actions[], enum mlx5dv_flow_table_type ft_type) DESCRIPTION Create a modify header flow steering action, it allows mutating a packet header. ARGUMENTS ctx RDMA device context to create the action on. actions_sz The size of actions…

NAME mlx5dv_create_flow – creates a steering flow rule SYNOPSIS #include <infiniband/mlx5dv.h> struct ibv_flow * mlx5dv_create_flow(struct mlx5dv_flow_matcher *flow_matcher, struct mlx5dv_flow_match_parameters *match_value, size_t num_actions, struct mlx5dv_flow_action_attr actions_attr[]) DESCRIPTION mlx5dv_create_flow() creates a steering flow rule with the ability to specify specific driver properties. ARGUMENTS Please see mlx5dv_create_flow_matcher(3) for flow_matcher and match_value. num_actions Specifies how many actions are passed…

NAME mlx5dv_create_cq – creates a completion queue (CQ) SYNOPSIS #include <infiniband/mlx5dv.h> struct ibv_cq_ex *mlx5dv_create_cq(struct ibv_context *context, struct ibv_cq_init_attr_ex *cq_attr, struct mlx5dv_cq_init_attr *mlx5_cq_attr); DESCRIPTION mlx5dv_create_cq() creates a completion queue (CQ) with specific driver properties. ARGUMENTS Please see ibv_create_cq_ex(3) man page for context and cq_attr mlx5_cq_attr struct mlx5dv_cq_init_attr { uint64_t comp_mask; uint8_t cqe_comp_res_format; uint32_t flags; uint16_t cqe_size;…

NAME mlx5dv_alloc_var – Allocates a VAR mlx5dv_free_var – Frees a VAR SYNOPSIS #include <infiniband/mlx5dv.h> struct mlx5dv_var * mlx5dv_alloc_var(struct ibv_context *context, uint32_t flags); void mlx5dv_free_var(struct mlx5dv_var *dv_var); DESCRIPTION Create / free a VAR which can be used for some device commands over the DEVX interface. The DEVX API enables direct access from the user space area…

NAME mlx5dv_alloc_dm – allocates device memory (DM) SYNOPSIS #include <infiniband/mlx5dv.h> struct ibv_dm *mlx5dv_alloc_dm(struct ibv_context *context, struct ibv_alloc_dm_attr *dm_attr, struct mlx5dv_alloc_dm_attr *mlx5_dm_attr) DESCRIPTION mlx5dv_alloc_dm() allocates device memory (DM) with specific driver properties. ARGUMENTS Please see ibv_alloc_dm(3) man page for context and dm_attr. mlx5_dm_attr struct mlx5dv_alloc_dm_attr { enum mlx5dv_alloc_dm_type type; uint64_t comp_mask; }; type The device memory…

NAME mlx4dv_set_context_attr – Set context attributes SYNOPSIS #include <infiniband/mlx4dv.h> int mlx4dv_set_context_attr(struct ibv_context *context, enum mlx4dv_set_ctx_attr_type attr_type, void *attr); DESCRIPTION mlx4dv_set_context_attr gives the ability to set vendor specific attributes on the RDMA context. ARGUMENTS context RDMA device context to work on. attr_type The type of the provided attribute. attr Pointer to the attribute to be set….

NAME mlx4dv_query_device – Query device capabilities specific to mlx4 SYNOPSIS #include <infiniband/mlx4dv.h> int mlx4dv_query_device(struct ibv_context *ctx_in, struct mlx4dv_context *attrs_out); DESCRIPTION mlx4dv_query_device() Query mlx4 specific device information that is usable via the direct verbs interface. This function returns a version and compatibility mask. The version represents the format of the internal hardware structures that mlx4dv.h exposes….

NAME mlx4dv_init_obj – Initialize mlx4 direct verbs object from ibv_xxx structures SYNOPSIS #include <infiniband/mlx4dv.h> int mlx4dv_init_obj(struct mlx4dv_obj *obj, uint64_t obj_type); DESCRIPTION mlx4dv_init_obj() This function will initialize mlx4dv_xxx structs based on supplied type. The information for initialization is taken from ibv_xx structs supplied as part of input. Request information of CQ marks its owned by direct…

NAME asctime, ctime, gmtime, localtime, mktime, asctime_r, ctime_r, gmtime_r, localtime_r – transform date and time to broken-down time or ASCII SYNOPSIS #include <time.h> char *asctime(const struct tm *tm); char *asctime_r(const struct tm *tm, char *buf); char *ctime(const time_t *timep); char *ctime_r(const time_t *timep, char *buf); struct tm *gmtime(const time_t *timep); struct tm *gmtime_r(const time_t *timep,…

NAME mktemp – make a unique temporary filename SYNOPSIS #include <stdlib.h> char *mktemp(char *template); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): mktemp(): Since glibc 2.12: (_XOPEN_SOURCE >= 500) && ! (_POSIX_C_SOURCE >= 200112L)     || /* Glibc since 2.19: */ _DEFAULT_SOURCE     || /* Glibc <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE Before glibc 2.12: _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 500 DESCRIPTION Never use this function; see BUGS. The mktemp() function generates a…

NAME mkstemp, mkostemp, mkstemps, mkostemps – create a unique temporary file SYNOPSIS #include <stdlib.h> int mkstemp(char *template); int mkostemp(char *template, int flags); int mkstemps(char *template, int suffixlen); int mkostemps(char *template, int suffixlen, int flags); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): mkstemp(): _XOPEN_SOURCE >= 500     || /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L     || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE mkostemp(): _GNU_SOURCE mkstemps():     /* Glibc since…

NAME mkstemp, mkostemp, mkstemps, mkostemps – create a unique temporary file SYNOPSIS #include <stdlib.h> int mkstemp(char *template); int mkostemp(char *template, int flags); int mkstemps(char *template, int suffixlen); int mkostemps(char *template, int suffixlen, int flags); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): mkstemp(): _XOPEN_SOURCE >= 500     || /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L     || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE mkostemp(): _GNU_SOURCE mkstemps():     /* Glibc since…

NAME mkstemp, mkostemp, mkstemps, mkostemps – create a unique temporary file SYNOPSIS #include <stdlib.h> int mkstemp(char *template); int mkostemp(char *template, int flags); int mkstemps(char *template, int suffixlen); int mkostemps(char *template, int suffixlen, int flags); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): mkstemp(): _XOPEN_SOURCE >= 500     || /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L     || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE mkostemp(): _GNU_SOURCE mkstemps():     /* Glibc since…

NAME mkstemp, mkostemp, mkstemps, mkostemps – create a unique temporary file SYNOPSIS #include <stdlib.h> int mkstemp(char *template); int mkostemp(char *template, int flags); int mkstemps(char *template, int suffixlen); int mkostemps(char *template, int suffixlen, int flags); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): mkstemp(): _XOPEN_SOURCE >= 500     || /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L     || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE mkostemp(): _GNU_SOURCE mkstemps():     /* Glibc since…

NAME mkfifo, mkfifoat – make a FIFO special file (a named pipe) SYNOPSIS #include <sys/stat.h> #include <sys/types.h> int mkfifo(const char *pathname, mode_t mode); #include <fcntl.h> /* Definition of AT_* constants */ #include <sys/stat.h> int mkfifoat(int dirfd, const char *pathname, mode_t mode); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): mkfifoat(): Since glibc 2.10: _POSIX_C_SOURCE >= 200809L Before…

NAME mkfifo, mkfifoat – make a FIFO special file (a named pipe) SYNOPSIS #include <sys/stat.h> #include <sys/types.h> int mkfifo(const char *pathname, mode_t mode); #include <fcntl.h> /* Definition of AT_* constants */ #include <sys/stat.h> int mkfifoat(int dirfd, const char *pathname, mode_t mode); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): mkfifoat(): Since glibc 2.10: _POSIX_C_SOURCE >= 200809L Before…