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Updated: Thursday, June 13, 2019
 
 

ibv_create_ah (3)

Name

ibv_create_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

Libibverbs Programmer's Manual                                IBV_CREATE_AH(3)



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 pro-
       tection  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 grh;            /* Global Routing Header (GRH) attributes */
               uint16_t                dlid;           /* Destination LID */
               uint8_t                 sl;             /* Service Level */
               uint8_t                 src_path_bits;  /* Source path bits */
               uint8_t                 static_rate;    /* Maximum static rate */
               uint8_t                 is_global;      /* GRH attributes are valid */
               uint8_t                 port_num;       /* Physical port number */
       };

       struct ibv_global_route {
               union ibv_gid           dgid;           /* Destination GID or MGID */
               uint32_t                flow_label;     /* Flow label */
               uint8_t                 sgid_index;     /* Source GID index */
               uint8_t                 hop_limit;      /* Hop limit */
               uint8_t                 traffic_class;  /* Traffic class */
       };


       ibv_destroy_ah() destroys the AH ah.

RETURN VALUE
       ibv_create_ah() returns a pointer to the created AH,  or  NULL  if  the
       request fails.

       ibv_destroy_ah() returns 0 on success, or the value of errno on failure
       (which indicates the failure reason).


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+-----------------------+
       |ATTRIBUTE TYPE |   ATTRIBUTE VALUE     |
       +---------------+-----------------------+
       |Availability   | network/open-fabrics  |
       +---------------+-----------------------+
       |Stability      | Pass-through volatile |
       +---------------+-----------------------+
SEE ALSO
       ibv_alloc_pd(3), ibv_init_ah_from_wc(3), ibv_create_ah_from_wc(3)

AUTHORS
       Dotan Barak <dotanba@gmail.com>



NOTES
       This    software    was    built    from    source     available     at
       https://github.com/oracle/solaris-userland.    The  original  community
       source   was   downloaded   from    ['https://www.openfabrics.org/down-
       loads/ibutils/ibutils-1.5.7-0.2.gbd7e502.tar.gz', 'https://www.openfab-
       rics.org/downloads/libibverbs/libibverbs-1.1.8.tar.gz',
       'https://www.openfabrics.org/downloads/libmlx4/libmlx4-1.0.6.tar.gz',
       'https://www.openfabrics.org/downloads/libsdp/lib-
       sdp-1.1.108-0.15.gd7fdb72.tar.gz',   'https://www.openfabrics.org/down-
       loads/management/infiniband-diags-1.6.5.tar.gz',  'https://www.openfab-
       rics.org/downloads/management/libibmad-1.3.12.tar.gz',
       'https://www.openfabrics.org/downloads/management/libibu-
       mad-1.3.10.2.tar.gz',    'https://www.openfabrics.org/downloads/manage-
       ment/opensm-3.3.19.tar.gz',          'https://www.openfabrics.org/down-
       loads/perftest/perftest-1.3.0-0.42.gf350d3d.tar.gz', 'https://www.open-
       fabrics.org/downloads/qperf/qperf-0.4.9.tar.gz',  'https://www.openfab-
       rics.org/downloads/rdmacm/librdmacm-1.0.21.tar.gz',  'https://www.open-
       fabrics.org/downloads/rds-tools/rds-tools-2.0.4.tar.gz']

       Further information about this software can be found on the open source
       community website at http://www.openfabrics.org/.



libibverbs                        2006-10-31                  IBV_CREATE_AH(3)