umad_get_issm_path(3) — Linux manual page

UMAD_GET_ISSM_PATH(3)  OpenIB Programmer's Manual  UMAD_GET_ISSM_PATH(3)

NAME

       umad_get_issm_path - get path of issm device

SYNOPSIS

       #include <infiniband/umad.h>

       int umad_get_issm_path(char *ca_name, int portnum,char*path,intmax);

DESCRIPTION

       umad_get_issm_path() resolves path to issm device (which used for
       setting/clearing PortInfo:CapMask IsSM bit) for portnum of the IB
       device ca_name , it stores resolved path in path array which
       cannot exceed max bytes in length (including NULL terminator).
       Opening issm device sets PortInfo:CapMask IsSM bit and closing
       clears it.

RETURN VALUE

       umad_open_port() returns 0 on success and a negative value on
       error as follows:
        -ENODEV IB device can't be resolved
        -EINVAL port is not valid (bad portnum or no umad device)

SEE ALSO

       umad_open_port(3), umad_get_port(3)

AUTHOR

       Sasha Khapyorsky <sashak@voltaire.com>

COLOPHON

       This page is part of the rdma-core (RDMA Core Userspace Libraries
       and Daemons) project.  Information about the project can be found
       at ⟨https://github.com/linux-rdma/rdma-core⟩.  If you have a bug
       report for this manual page, send it to
       linux-rdma@vger.kernel.org.  This page was obtained from the
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       ⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2024-06-14.  (At
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OpenIB                        Oct 18, 2007         UMAD_GET_ISSM_PATH(3)