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   umad_open_port    ( 3 )

открыть порт устройства InfiniBand для доступа umad (open InfiniBand device port for umad access)

Имя (Name)

umad_open_port - open InfiniBand device port for umad access


Синопсис (Synopsis)

#include <infiniband/umad.h>

int umad_open_port(char *ca_name, int portnum);


Описание (Description)

umad_open_port() opens the port portnum of the IB device ca_name for umad access. The port is selected by the library if not all parameters are provided (see umad_get_port() for details).


Возвращаемое значение (Return value)

umad_open_port() returns 0 or an unique positive value of umad device descriptor on success, and a negative value on error as follows: -EOPNOTSUPP ABI version doesn't match -ENODEV IB device can't be resolved -EINVAL port is not valid (bad portnum or no umad device) -EIO umad device for this port can't be opened


Смотри также (See also)

umad_close_port(3), umad_get_cas_names(3), umad_get_port(3)