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13925ae9eb
Add support for configuration parameters set and show.
Each parameter can be either generic or driver-specific.
The user can retrieve data on these configuration parameters by devlink
param show command and can set new value to a configuration parameter
by devlink param set command.
The configuration parameters can be set in different configuration
modes:
runtime - set while driver is running, no reset required.
driverinit - applied while driver initializes, requires restart
driver by devlink reload command.
permanent - written to device's non-volatile memory, hard reset
required to apply.
New commands added:
devlink dev param show [DEV name PARAMETER]
devlink dev param set DEV name PARAMETER value VALUE
cmode { permanent | driverinit | runtime }
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
199 lines
3.9 KiB
Groff
199 lines
3.9 KiB
Groff
.TH DEVLINK\-DEV 8 "14 Mar 2016" "iproute2" "Linux"
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.SH NAME
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devlink-dev \- devlink device configuration
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.SH SYNOPSIS
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.sp
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.ad l
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.in +8
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.ti -8
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.B devlink
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.RI "[ " OPTIONS " ]"
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.B dev
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.RI " { " COMMAND " | "
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.BR help " }"
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.sp
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.ti -8
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.IR OPTIONS " := { "
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\fB\-V\fR[\fIersion\fR] |
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\fB\-n\fR[\fIno-nice-names\fR] }
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.ti -8
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.B devlink dev show
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.RI "[ " DEV " ]"
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.ti -8
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.B devlink dev help
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.ti -8
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.BR "devlink dev eswitch set"
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.IR DEV
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.RI "[ "
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.BR mode " { " legacy " | " switchdev " } "
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.RI "]"
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.RI "[ "
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.BR inline-mode " { " none " | " link " | " network " | " transport " } "
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.RI "]"
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.RI "[ "
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.BR encap " { " disable " | " enable " } "
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.RI "]"
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.ti -8
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.BR "devlink dev eswitch show"
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.IR DEV
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.ti -8
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.BR "devlink dev param set"
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.IR DEV
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.BR name
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.IR PARAMETER
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.BR value
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.IR VALUE
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.BR cmode " { " runtime " | " driverinit " | " permanent " } "
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.ti -8
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.BR "devlink dev param show"
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.RI "[ "
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.IR DEV
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.BR name
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.IR PARAMETER
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.RI "]"
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.ti -8
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.BR "devlink dev reload"
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.IR DEV
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.SH "DESCRIPTION"
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.SS devlink dev show - display devlink device attributes
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.PP
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.I "DEV"
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- specifies the devlink device to show.
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If this argument is omitted all devices are listed.
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.in +4
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Format is:
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.in +2
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BUS_NAME/BUS_ADDRESS
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.SS devlink dev eswitch show - display devlink device eswitch attributes
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.SS devlink dev eswitch set - sets devlink device eswitch attributes
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.TP
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.BR mode " { " legacy " | " switchdev " } "
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Set eswitch mode
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.I legacy
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- Legacy SRIOV
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.I switchdev
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- SRIOV switchdev offloads
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.TP
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.BR inline-mode " { " none " | " link " | " network " | " transport " } "
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Some HWs need the VF driver to put part of the packet headers on the TX descriptor so the e-switch can do proper matching and steering.
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.I none
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- None
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.I link
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- L2 mode
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.I network
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- L3 mode
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.I transport
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- L4 mode
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.TP
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.BR encap " { " disable " | " enable " } "
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Set eswitch encapsulation support
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.I disable
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- Disable encapsulation support
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.I enable
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- Enable encapsulation support
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.SS devlink dev param set - set new value to devlink device configuration parameter
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.TP
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.BI name " PARAMETER"
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Specify parameter name to set.
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.TP
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.BI value " VALUE"
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New value to set.
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.TP
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.BR cmode " { " runtime " | " driverinit " | " permanent " } "
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Configuration mode in which the new value is set.
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.I runtime
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- Set new value while driver is running. This configuration mode doesn't require any reset to apply the new value.
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.I driverinit
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- Set new value which will be applied during driver initialization. This configuration mode requires restart driver by devlink reload command to apply the new value.
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.I permanent
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- New value is written to device's non-volatile memory. This configuration mode requires hard reset to apply the new value.
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.SS devlink dev param show - display devlink device supported configuration parameters attributes
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.BR name
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.IR PARAMETER
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Specify parameter name to show.
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If this argument is omitted all parameters supported by devlink devices are listed.
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.SS devlink dev reload - perform hot reload of the driver.
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.PP
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.I "DEV"
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- Specifies the devlink device to reload.
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.SH "EXAMPLES"
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.PP
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devlink dev show
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.RS 4
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Shows the state of all devlink devices on the system.
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.RE
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.PP
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devlink dev show pci/0000:01:00.0
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.RS 4
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Shows the state of specified devlink device.
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.RE
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.PP
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devlink dev eswitch show pci/0000:01:00.0
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.RS 4
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Shows the eswitch mode of specified devlink device.
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.RE
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.PP
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devlink dev eswitch set pci/0000:01:00.0 mode switchdev
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.RS 4
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Sets the eswitch mode of specified devlink device to switchdev.
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.RE
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.PP
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devlink dev param show pci/0000:01:00.0 name max_macs
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.RS 4
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Shows the parameter max_macs attributes.
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.RE
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.PP
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devlink dev param set pci/0000:01:00.0 name internal_error_reset value true cmode runtime
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.RS 4
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Sets the parameter internal_error_reset of specified devlink device to true.
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.RE
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.PP
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devlink dev reload pci/0000:01:00.0
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.RS 4
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Performs hot reload of specified devlink device.
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.SH SEE ALSO
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.BR devlink (8),
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.BR devlink-port (8),
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.BR devlink-sb (8),
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.BR devlink-monitor (8),
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.br
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.SH AUTHOR
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Jiri Pirko <jiri@mellanox.com>
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