IBCCCONFIG - Online Linux Manual PageSection : 8
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Note : OpenIB Diagnostics
NAMEIBCCCONFIG − configure congestion control settings
SYNOPSISibccconfig [common_options] [−c cckey] <op> <lid|guid> [port]
DESCRIPTIONibccconfig supports the configuration of congestion control settings on switches and HCAs. WARNING −− You should understand what you are doing before using this tool. Misuse of this tool could result in a broken fabric.
OPTIONS Current supported operations and their parameters: CongestionKeyInfo (CK) <lid|guid> <cckey> <cckeyprotectbit> <cckeyleaseperiod> <cckeyviolations> SwitchCongestionSetting (SS) <lid|guid> <controlmap> <victimmask> <creditmask> <threshold> <packetsize> <csthreshold> <csreturndelay> <markingrate> SwitchPortCongestionSetting (SP) <lid|guid> <portnum> <valid> <control_type> <threshold> <packet_size> <cong_parm_marking_rate> CACongestionSetting (CS) <lid|guid> <port_control> <control_map> <ccti_timer> <ccti_increase> <trigger_threshold> <ccti_min> CongestionControlTable (CT) <lid|guid> <cctilimit> <index> <cctentry> <cctentry> ... −−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 SelectionMultiple 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
EXAMPLES ibccconfig SwitchCongestionSetting 2 0x1F 0x1FFFFFFFFF 0x0 0xF 8 0 0:0 1 # Configure Switch Congestion Settings
ibccconfig CACongestionSetting 1 0 0x3 150 1 0 0 # Configure CA Congestion Settings to SL 0 and SL 1
ibccconfig CACongestionSetting 1 0 0x4 200 1 0 0 # Configure CA Congestion Settings to SL 2
ibccconfig CongestionControlTable 1 63 0 0:0 0:1 ... # Configure first block of Congestion Control Table
ibccconfig CongestionControlTable 1 127 0 0:64 0:65 ... # Configure second block of Congestion Control Table
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.
AUTHOR Albert Chu < chu11@llnl.gov > 0
Johanes Gumabo
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