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NAME | SYNOPSIS | DESCRIPTION | REGISTRATION ATTRIBUTE STRUCTURE | RETURN VALUE | SEE ALSO | AUTHOR | COLOPHON |
UMAD_REGISTER2(3) OpenIB Programmer´s Manual UMAD_REGISTER2(3)
umad_register2 - register the specified management class and version
for port
#include <infiniband/umad.h>
int umad_register2(int port_fd, struct umad_reg_attr *attr, uint32_t *agent_id);
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.
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.
umad_register2() returns 0 on success and +ERRNO on failure.
umad_unregister(3)
Ira Weiny <ira.weiny@intel.com>
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 project's upstream Git repository
⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2020-08-13. (At
that time, the date of the most recent commit that was found in the
repository was 2020-08-05.) If you discover any rendering problems
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OpenIB March 25, 2014 UMAD_REGISTER2(3)