NAME

       umad_register2 - register the specified management class and version for port

SYNOPSIS

       #include <infiniband/umad.h>

       int umad_register2(int port_fd, struct umad_reg_attr *attr, uint32_t *agent_id);

DESCRIPTION

       umad_register2() registers for a MAD agent using the provided registration attributes

       port_fd the port on which to register the agent

       attr  The  registration  attributes  as  defined  by  the structure passed.  See below for
       details of this structure.

       agent_id returned on success.  agent_id identifies the kernel MAD agent a MAD is  received
       by or to be sent by.  agent_id is returned in the umad header "struct ib_user_mad" on recv
       and specified in umad_send when sending.

REGISTRATION ATTRIBUTE STRUCTURE

       struct umad_reg_attr {
               uint8_t    mgmt_class;
               uint8_t    mgmt_class_version;
               uint32_t   flags;
               uint64_t   method_mask[2];
               uint32_t   oui;
               uint8_t    rmpp_version;
       };

       mgmt_class
       Management class to register for.

       mgmt_class_version
       Management class version to register for.

       flags
       Registration flags.  If a flag specified is not supported by the kernel,
       an error is returned, and the supported flags are returned in this field.

       Current flags are:
               UMAD_USER_RMPP -- flag to indicate the kernel should not process
               RMPP packets.  All RMPP packets will be treated like individual
               MADs.  The user is responsible for implementing the RMPP
               protocol.

       method_mask
       A bit mask which indicates which unsolicited methods this agent should
       receive.  Setting this array to 0 will result in the agent only
       receiving response MADs for which a request was sent.

       oui
       The oui (in host order) to use for vendor classes 0x30 - 0x4f.
       Otherwise ignored.

       rmpp_version
       If the class supports RMPP and kernel RMPP is enabled (the default)
       indicate which rmpp_version to use.

RETURN VALUE

       umad_register2() returns 0 on success and +ERRNO on failure.

SEE ALSO

       umad_unregister(3)

AUTHOR

       Ira Weiny <ira.weiny@intel.com>