Index: share/man/man4/axp.4 =================================================================== --- share/man/man4/axp.4 +++ share/man/man4/axp.4 @@ -29,7 +29,7 @@ .\" .\" * Other names and brands may be claimed as the property of others. .\" -.Dd January 24, 2021 +.Dd February 19, 2021 .Dt AXP 4 .Os .Sh NAME @@ -133,41 +133,23 @@ Configure the log-level for the driver. Default is 0. Supports 0-3. -.It Va dev.ax.X.single_fl -This variable must be set before loading the driver, either via -.Xr loader.conf 5 -or through the use of -.Xr kenv 1 . -This cannot be modified when driver is loaded. -.Pp -Setting this variable in +.It Va dev.ax.X.link_workaround +This variable enables the workaround for an intermittent link issue. +When link does not come up for long time, this variable can be set to 1 to +reset the phy and bring up the link. +.El +.Sh LOADER TUNABLES +The following variable is available as .Xr loader.conf 5 -needs the system to be restarted to take effect. -When using -.Xr kenv 1 , -use the wrapper variable -.Va dev.ax.single_fl\&, -which will configure all AMD interfaces with single freelist per receive queue. -Default is 2 freelist per receive queue. -.Pp -This variable is to configure the interface when single freelist is needed. -(For Eg. netmap). -Basically, this will control the software behavior of how the receive -descriptors are used. -.Pp -Setting this variable to 1, will use 1 Freelist per receive queue. -.Pp -Setting this variable to 0, will use 2 Freelist per receive queue. -.Pp -Based on the setting, the receive buffers are programmed accordingly on the -received descriptors. +tunable. +.Bl -tag -width indent +.It Va dev.ax.X.sph_enable +This variable controls split header feature for the interface. +Default is 1, meaning the split header support is enabled. .Pp -By default, this variable will be set to 0, meaning the interfaces will be -configured for regular data traffic (not netmap traffic). -.It Va dev.ax.X.sph_enabled This variable must be set before loading the driver, either via .Xr loader.conf 5 -or through the use of +or through .Xr kenv 1 . This cannot be modified when driver is loaded. .Pp @@ -177,24 +159,13 @@ When using .Xr kenv 1 , use the wrapper variable -.Va dev.ax.sph_enable\&, -which will configure(enable/disable) split header support in all -AMD interfaces. -.Pp -This variable is to control enable/disable of the split header feature in -the interface. -.Pp -Setting this variable to 1, will enable split header feature. -.Pp -Setting this variable to 0, will disable split header feature. -.Pp -By default, this variable will be set to 1, meaning the Split header support be -enabled. +.Va dev.ax.sph_enable , +which will configure(enable/disable) split header support for all +.Nm +interfaces. .Pp -NOTE: It is recommended to use this variable only when -.Va single_fl\& -is configured. -Otherwise let it be default value. +To use netmap with this device, split header support must be disabled +(set this variable to 0). .El .Sh SEE ALSO .Xr arp 4 ,