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>