.\" -*- nroff -*-
.\" Copyright 2004-2008 by Chelsio Communications.  All Rights Reserved.
.TH CXGBTOOL "8" "July 2008" "cxgbtool 1.17" "Linux"
.SH "NAME"
cxgbtool \- display or change Chelsio network card settings
.SH "SYNOPSIS"
.B cxgbtool
\fIinterface\fR \fBclearstats\fR [\fBport\fR|\fBqueue\fR [\fIindex\fR]]

.B cxgbtool
\fIinterface\fR \fBcontext\fR \fItype\fR \fIid\fR

.B cxgbtool
\fIinterface\fR \fBdesc\fR \fIqueue-set\fR \fIqueue-num\fR \fIindex\fR [\fIcount\fR]

.B cxgbtool
\fIinterface\fR \fBfilter\fR \fIindex\fR [\fIparam\fR \fIval\fR[:\fImask\fR]] ...

.B cxgbtool
\fIinterface\fR \fBfilter\fR \fIindex\fR \fBdelete\fR|\fBclear\fR

.B cxgbtool
\fIinterface\fR \fBloadfw\fR \fIFW-image\fR

.B cxgbtool
\fIinterface\fR \fBloadboot\fR \fIboot-image\fR

.B cxgbtool
\fIinterface\fR \fBlro\fR \fBon\fR|\fBoff\fR

.B cxgbtool
\fIinterface\fR \fBmdio\fR \fIphy-addr\fR \fIMMD-addr\fR
\fIregister-addr\fR [\fIvalue\fR]

.B cxgbtool
\fIinterface\fR \fBmemdump\fR \fImemory\fR \fIaddr\fR \fIcount\fR

.B cxgbtool
\fIinterface\fR \fBmeminfo\fR

.B cxgbtool
\fIinterface\fR \fBmtus\fR [\fImtu0\fR...\fImtuN\fR]

.B cxgbtool
\fIinterface\fR \fBnapi\fR \fBon\fR|\fBoff\fR

.B cxgbtool
\fIinterface\fR \fBpktsched\fR \fBport\fR \fIindex\fR \fImin%\fR \fImax%\fR

.B cxgbtool
\fIinterface\fR \fBpktsched\fR \fBtunnelq\fR \fIindex\fR \fImax%\fR

.B cxgbtool
\fIinterface\fR \fBpktsched\fR \fBtx\fR \fIindex\fR [\fIparam\fR \fIval\fR] ...

.B cxgbtool
\fIinterface\fR \fBpm\fR [\fITx-pages\fR \fIRx-pages\fR]

.B cxgbtool
\fIinterface\fR \fBpolicy\fR \fIoffload-policy\fR

.B cxgbtool
\fIinterface\fR \fBproto\fR

.B cxgbtool
\fIinterface\fR \fBqset\fR [\fIindex\fR [\fIparam\fR \fIvalue\fR] ...]

.B cxgbtool
\fIinterface\fR \fBqsets\fR [\fIcount\fR]

.B cxgbtool
\fIinterface\fR \fBreg\fR \fIaddress\fR[\fB=\fIvalue\fR]

.B cxgbtool
\fIinterface\fR \fBregdump\fR [\fImodule\fR]

.B cxgbtool
\fIinterface\fR \fBtcamdump\fR \fIaddress\fR \fIcount\fR

.B cxgbtool
\fIinterface\fR \fBtcb\fR \fIindex\fR

.B cxgbtool
\fIinterface\fR \fBtrace\fR \fBtx\fR|\fBrx\fR|\fBall\fR \fBon\fR|\fBoff\fR
[\fBnot\fR] [\fIparam\fR \fIval\fR[:\fImask\fR]] ...

.B cxgbtool
\fIinterface\fR \fBtrace\fR \fBtx\fR|\fBrx\fR|\fBall\fR

.B cxgbtool
\fIinterface\fR \fBioqs\fR

.B cxgbtool
\fIinterface\fR \fBla\fR

.B cxgbtool
\fIinterface\fR \fBup\fR

.B cxgbtool \-h | \-\-help

.B cxgbtool \-v | \-\-version
.SH "DESCRIPTION"
.BI cxgbtool
queries or sets various aspects of Chelsio network interface cards.  It
complements standard tools used to configure network settings and provides
functionality not available through such tools.

.I interface
is the name of the network device to work on.

All numerical parameters can be specified in hex (with a \fB0x\fR prefix)
or decimal.
.SH "OPTIONS"
.TP
\fB\-h\fR, \fB\-\-help\fR
show usage information
.PP
.TP
\fB\-v\fR, \fB\-\-version\fR
show version information
.PP
.B cxgbtool
supports the following operations:
.TP
\fBcontext\fR \fItype\fR \fIid\fR
Display the contents of an SGE context of the given type.  The context type is
one of \fBegress\fR, \fBfl\fR, \fBcq\fR, or \fBresponse\fR.
.TP
\fBdesc\fR \fIqueue-set\fR \fIqueue-num\fR \fIindex\fR [\fIcount\fR]
Display the contents of \fIcount\fR SGE descriptors of the given queue of the
given SGE queue set starting at \fIindex\fR.  Queues are numbered from 0 to 5
in the order Tx Ethernet queue, Tx Offload queue, Tx control queue, response queue,
Rx queue 0, and Rx queue 1.  \fIcount\fR defaults to 1.
.TP
\fBfilter\fR \fIindex\fR [\fIparam\fR \fIval\fR[{:\fImask\fR | /\fImask-len\fR}]] ...
configure the HW packet filter with the given index.  Supported parameters
are \fBsip\fR, \fBdip\fR, \fBsport\fR, \fBdport\fR, \fBvlan\fR, \fBprio\fR,
\fBmac\fR, \fBtype\fR, \fBaction\fR, and \fBqueue\fR.  The first six specify
the source and destination IP addresses, the source and destination layer 4
ports, and the VLAN id and priority.  IP addresses and optional masks are
specified in CIDR notation (address [/ prefix mask length]), whereas ports
and the VLAN parameters take an optional mask with an explicit value.
\fBmac\fR specifies an index within the adapter's exact-match HW MAC filter
table to compare against the destination address of Ethernet frames.
Packets that do not hit any of these exact MAC filters can be selected by
specifying the special values \fB-1\fR or \fBnone\fR for the \fBmac\fR
parameter. \fBtype\fR can be one of \fBtcp\fR, \fBudp\fR, or \fBfrag\fR.
\fBaction\fR determines what should happen to a matching packet and can be
\fBpass\fR or \fBdrop\fR.  \fBqueue\fR specifies which queue a packet should
be delivered to if the filter lets it through.

NOTE: The number of available filters as well as the exact set of values
allowed for the filter parameters and masks depends on the adapter.  Consult
the adapter documentation for specific information on any limitations.
.TP
\fBfilter\fR \fIindex\fR \fBdelete\fR|\fBclear\fR
delete the filter with the given index.
.TP
\fBloadfw\fR \fIFW-image\fR
Load the supplied firmware image to the serial flash.
.TP
\fBloadboot\fR \fIboot-image\fR
Load the supplied BIOS boot ROM image to the serial flash.
.TP
\fBlro \fBon\fR|\fBoff\fR
Enable or disable LRO for all queues on the interface. This is a shortcut to
globally modify LRO for all queue-sets assigned to a port. To enable/disable
LRO on specific queues, use the \fBqset\fR option.
.TP
\fBmdio\fR \fIphy-addr\fR \fIMMD-addr\fR \fIregister-addr\fR [\fIvalue\fR]
Display or set the value of a register accessible over the MDIO interface.
.TP
\fBmemdump\fR \fImemory\fR \fIaddr\fR \fIcount\fR
Display the contents of \fIcount\fR bytes of the given memory starting at
address \fIaddr\fR.  Both the address and the count must be multiples of 8.
\fImemory\fR must be one of \fBcm\fR, \fBtx\fR, or \fBrx\fR.
.TP
\fBmeminfo\fR
Display the memory maps for on-card memories.
.TP
\fBmtus\fR [\fImtu0\fR...\fImtuN\fR]
Display or set the contents of the on-chip MTU table.  If an MTU list is
supplied it must be sorted in ascending order.  Modifying the MTU table
must be done before enabling any ports on the card or activating TCP
offloading.  The number of mtus depends on the card.
.TP
\fBnapi \fBon\fR|\fBoff\fR
Enable or disable NAPI for all queues on the interface. When NAPI is disabled,
the interface will use irq mode. This is a shortcut to globally change
the interrupt mode for all queue-sets assigned to a port. To enable/disable
NAPI on specific queues, use the \fBqset\fR option.
.TP
\fBpktsched\fR \fBport\fR \fIindex\fR \fImin%\fR \fImax%\fR
Configure minimum (\fImin%\fR) and maximum (\fImax%\fR) transmit port
(\fIindex\fR) utilization for non-offload traffic.  Without these
limitations non-offload transmit traffic may block offload transmit traffic.
The default values are 50 and 100 indicating that non-offload will be
limited to 50% of the port's transmit capability when offload traffic is
competing for transmit bandwidth, and will be allowed to use 100% of the
transmit capacity when no offload traffic is present.
.TP
\fBpktsched\fR \fBtunnelq\fR \fIindex\fR \fImax%\fR
Configure the maximum percentage (\fImax%\fR) of allowed non-offload
transmit bandwidth for which a non-offload (tunnel) transmit queue
(\fIindex\fR) is allowed to compete.  (The total allowed non-offload
transmit bandwidth is configured via the \fBpktsched\fR \fBport\fR described
above.)  This can be useful in order to limit a non-offload transmit queue
to a traffic rate matched to a consuming peer application and prevent
burstiness in the network.  It is allowed to specify 100 for all non-offload
transmit queues which would mean that each queue would try to utilize 100%
of the total allowed non-offload transmit bandwidth (this is the default).
The number of non-offload transmit queues is hardware-specific.  For
\fBT3\fR-based adapters, there are 8 non-offload transmit queues.
.TP
\fBpktsched\fR \fBtx\fR \fIindex\fR [\fIparam\fR \fIval\fR] ...
Configure the hardware Offload Transmit Traffic Shaping Class schedulers.
\fIindex\fR identifies which Traffic Shaping Class scheduler to
configure, the possible values depend on the adapter model.  The accepted
parameters are \fBmode\fR, \fBchannel\fR, \fBrate\fR, \fBipg\fR, and
\fBflowipg\fR.  \fBmode\fR can have the values \fBclass\fR or \fBflow\fR to
set the scheduler in per-class or per-flow mode, respectively.  \fBchannel\fR
specifies which Tx channel the scheduler will be mapped to.  The value is an
integer whose range depends on the adapter capabilities.  \fBrate\fR specifies
the value for the scheduler's byte-rate limiter in Kbps, \fBipg\fR specifies
the setting for the scheduler's per-class inter-packet delay in tenths of
nanoseconds, and \fBflowipg\fR specifies the value for the per-flow inter-packet
delay in microseconds.  Omitted parameters retain their current settings.

Note that the \fBrate\fR, \fBipg\fR, and \fBflowipg\fR values must lie in
certain adapter-dependent ranges and values outside those ranges will trigger
an "invalid argument" error.
.TP
\fBpm\fR [\fITx-pages\fR \fIRx-pages\fR]
Display or set the number and size of Tx and Rx pages for the on-chip payload
memory.  The page specifiers are of the form
.I number-of-pages\fBx\fIpage-size-in-KB\fR.
Modifying memory settings must be done before enabling any ports on the card
or activating TCP offloading.
.TP
\fBpolicy\fR \fIoffload-policy\fR
set the offload policy of the device.  \fIoffload-policy\fR can be \fBnone\fR
to clear any existing policy or a path to a policy file generated by the
\fBcop(8)\fR utility.
.TP
\fBproto\fR
Dump the contents of the protocol SRAM.
.TP
\fBqset\fR [\fIindex\fR {\fIparam\fR \fIvalue\fR} ...]
Display or set the parameters of the SGE queue sets.  The parameters that may
be specified are \fBtxq0\fR, \fBtxq1\fR, \fBtxq2\fR, \fBrspq\fR, \fBfl0\fR,
\fBfl1\fR, \fBcong\fR, \fBlat\fR, and \fBmode\fR.  For \fBtxq0\fR, \fBtxq1\fR,
\fBtxq2\fR, \fBrspq\fR, \fBfl0\fR, and \fBfl1\fR the supplied value specifies
the number of entries of the corresponding queue in the queue set, \fBcong\fR
is the congestion threshold for the free lists, \fBlat\fR is the
interrupt coalescing latency for the queue set in microseconds, \fBmode\fR
specifies the service mode for the response queue and can be \fBirq\fR or
\fBnapi\fR, and \fBlro\fR specifies if Large Receive Offload is enabled 
\fB1\fR or disabled \fB0\fR.  Omitted parameters retain their current value.  
If no parameters are specified the current settings for all queue sets are displayed.

Note that the mode can be set independently for each queue set only when using
MSI-X interrupts.  In other cases a mode change applies to all queue sets.
.TP
\fBqsets\fR [\fIcount\fR]
Display or set the number of qsets assigned to the given interface.
.TP
\fBclearstats\fR [\fBport\fR|\fBqueue\fR [\fIindex\fR]]
clear statistics.  \fBport\fR clears interface statistics, \fBqueue\fR clears
statistics for all queue sets associated with \fIinterface\fR if no index is
specified or just the statistics of the queue set \fIindex\fR.  Without optional
arguments the command clears all statistics.
.TP
\fBreg\fR \fIaddress\fR[\fB=\fIvalue\fR]
Display or set the value of the device register at \fIaddress\fR.  This
operation applies to device registers accessible on the PCI bus.
.TP
\fBregdump\fR [\fImodule\fR]
Dump the registers of a HW module.  Supported module names are \fBsge\fR,
\fBtp\fR, \fBpl\fR, \fBpci\fR, \fBt3dbg\fR, \fBpmrx\fR, \fBpmtx\fR, \fBcm\fR,
\fBcim\fR, \fBulp_rx\fR, \fBulp_tx\fR, \fBpmrx\fR, \fBpmtx\fR, \fBmps\fR,
\fBcplsw\fR, \fBsmb\fR, \fBi2c\fR, \fBmi1\fR, \fBsf\fR, \fBxgmac0\fR, \fBxgmac1\fR,
and \fBmc5\fR. Not all modules are available on all cards. If the module is not
specified, all modules will be displayed.
.TP
\fBtcamdump\fR \fIaddress\fR \fIcount\fR
Display \fIcount\fR TCAM entries starting at \fIaddress\fR.
.TP
\fBtcb\fR \fIindex\fR
Display the contents of a TCB.
.TP
\fBtrace\fR \fBtx\fR|\fBrx\fR|\fBall\fR \fBon\fR|\fBoff\fR [\fBnot\fR] [\fIparam\fR \fIval\fR[:\fImask\fR]] ...
Configure the packet tracing filters.  The first argument selects the filter(s)
to be programmed, and the second selects whether packet tracing is to be
enabled or not for the specified filters.  The filter parameters that may be
specified are \fBinterface\fR, \fBsip\fR, \fBdip\fR, \fBsport\fR, \fBdport\fR,
\fBvlan\fR, and \fBproto\fR.  For each parameter a value and an optional mask
can be specified.  If the mask is omitted it defaults to all 1s, i.e., the
value will be matched exactly.  If a parameter is omitted its mask defaults to
0 and the parameter is treated as a wildcard.  If the optional \fBnot\fR is
specified the matching criteria are inverted, i.e., packets that do not match
the criteria will be traced.
.TP
\fBtrace\fR \fBtx\fR|\fBrx\fR|\fBall
Display the packet tracing filters.
.TP
\fBioqs\fR
Display the firmware egress ioqs.
.TP
\fBla\fR
Display the firmware Logic analyzer trace.
.TP
.B up
Enable TCP offloading.
.SH BUGS
None known.
.SH "SEE ALSO"
ifconfig(8), ip(8), ethtool(8), mii-tool(8), cop(8)
.SH "AUTHOR"
.B cxgbtool
was written by Dimitris Michailidis.
.SH "AVAILABILITY"
.B cxgbtool
is available from Chelsio Communications.