Ibccquery (8) Linux Manual Page

IBCCQUERY – query congestion control settings/info

Synopsis

ibccquery [common_options] [-c cckey] <op> <lid|guid> [port]

Description

ibccquery support the querying of settings and other information related to congestion control.

Options

Current supported operations and their parameters:

CongestionInfo (CI) <addr> CongestionKeyInfo (CK) <addr> CongestionLog (CL) <addr> SwitchCongestionSetting (SS) <addr> SwitchPortCongestionSetting (SP) <addr> [<portnum>] CACongestionSetting (CS) <addr> CongestionControlTable (CT) <addr> Timestamp (TI) <addr>

–cckey, -c <cckey> Specify a congestion control (CC) key. If none is specified, a key of 0 is used.

Debugging flags

-d

raise the IB debugging level. May be used several times (-ddd or -d -d -d).

-e

show send and receive errors (timeouts and others)

-h, –help show the usage message

-v, –verbose

increase the application verbosity level. May be used several times (-vv or -v -v -v)

-V, –version show the version info.

Addressing Flags

-G, –Guid The address specified is a Port GUID

-L, –Lid The address specified is a LID

-s, –sm_port <smlid> use ‘smlid’ as the target lid for SA queries.

Port Selection flags

-C, –Ca <ca_name> use the specified ca_name.

-P, –Port <ca_port> use the specified ca_port.

Local port Selection

Multiple port/Multiple CA support: when no IB device or port is specified (see the "local umad parameters" below), the libibumad library selects the port to use by the following criteria:

1.

the first port that is ACTIVE.

2.

if not found, the first port that is UP (physical link up).

If a port and/or CA name is specified, the libibumad library attempts to fulfill the user request, and will fail if it is not possible.

For example:

ibaddr # use the first port (criteria #1 above)
ibaddr -C mthca1 # pick the best port from "mthca1" only.
ibaddr -P 2 # use the second (active/up) port from the first available IB device.
ibaddr -C mthca0 -P 2 # use the specified port only.

Configuration flags

-y, –m_key <key>

use the specified M_key for requests. If non-numeric value (like ‘x’) is specified then a value will be prompted for.

–config, -z <config_file> Specify alternate config file. Default: /etc/infiniband-diags/ibdiag.conf

Files

Config File

/etc/infiniband-diags/ibdiag.conf

A global config file is provided to set some of the common options for all tools. See supplied config file for details.

Examples

ibccquery CongestionInfo 3 # Congestion Info by lid
ibccquery SwitchPortCongestionSetting 3 # Query all Switch Port Congestion Settings
ibccquery SwitchPortCongestionSetting 3 1 # Query Switch Port Congestion Setting for port 1

Author

Albert Chu: < chu11 [at] llnl.gov >

ibccquery (8) Linux Manual Page