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umad_get_issm_path(3) — Linux manual page

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

NAME        top

       umad_get_issm_path - get path of issm device

SYNOPSIS        top

#include <infiniband/umad.h>int umad_get_issm_path(char*ca_name, intportnum,char*path,intmax);

DESCRIPTION        top

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

RETURN VALUE        top

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 (badportnum or no umad device)

SEE ALSO        top

umad_open_port(3),umad_get_port(3)

AUTHOR        top

       Sasha Khapyorsky <sashak@voltaire.com>

COLOPHON        top

       This page is part of therdma-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       project's upstream Git repository       ⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2025-08-11.  (At       that time, the date of the most recent commit that was found in       the repository was 2025-08-04.)  If you discover any rendering       problems in this HTML version of the page, or you believe there is       a better or more up-to-date source for the page, or you have       corrections or improvements to the information in this COLOPHON       (which isnot part of the original manual page), send a mail to       man-pages@man7.orgOpenIB                         Oct 18, 2007UMAD_GET_ISSM_PATH(3)

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