Document the link0 option, which downloads the microcode to the board.
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=85463
@ -37,8 +37,8 @@
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The
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The
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.Nm
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.Nm
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driver provides support for the EtherExpress Pro/10, Pro/100B, and Pro/100+
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driver provides support for the EtherExpress Pro/10, Pro/100B, and Pro/100+
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PCI Fast Ethernet adapters based on the Intel i82557 or i82559 ethernet
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PCI Fast Ethernet adapters based on the Intel i82557, i82558, i82559
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chips.
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or i82550 ethernet chips.
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.Pp
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.Pp
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The
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The
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.Nm
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.Nm
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@ -65,6 +65,20 @@ Set full duplex operation
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Note that 100baseTX media type is only available on the Pro/100B and Pro/100+.
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Note that 100baseTX media type is only available on the Pro/100B and Pro/100+.
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For further information on configuring this device, see
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For further information on configuring this device, see
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.Xr ifconfig 8 .
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.Xr ifconfig 8 .
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.Pp
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The
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.Nm
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driver also supports a special link option:
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.Bl -tag -width link0
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.It Cm link0
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Some chip revisions have loadable microcode which can be used to reduce the
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interrupt load on the host cpu. Not all boards have support microcode support.
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Setting the
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.Cm link0
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flag with
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.Xr ifconfig 8
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will load download the microcode to the chip if it is available.
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.El
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.Sh DIAGNOSTICS
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.Sh DIAGNOSTICS
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.Bl -diag
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.Bl -diag
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.It "fxp%d: couldn't map memory"
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.It "fxp%d: couldn't map memory"
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@ -83,6 +97,9 @@ Create, if it does not yet exist, and add to the file
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.Pa /boot/device.hints
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.Pa /boot/device.hints
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the line
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the line
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.Dq Li hint.fxp.0.prefer_iomap="0" .
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.Dq Li hint.fxp.0.prefer_iomap="0" .
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.It "fxp%d: Microcode loaded, int_delay: %d usec bundle_max: %d"
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The chip has successfully downloaded the microcode, and changed the
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parametrized values to the giveng settings.
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.El
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.El
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.Sh SEE ALSO
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.Sh SEE ALSO
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.Xr arp 4 ,
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.Xr arp 4 ,
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