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Date:      Tue, 18 May 2010 13:15:37 -0400
From:      John Baldwin <jhb@freebsd.org>
To:        net@freebsd.org
Cc:        Navdeep Parhar <np@freebsd.org>
Subject:   Configuring flow control for network interfaces
Message-ID:  <201005181315.37609.jhb@freebsd.org>

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I think it would be useful if we could pick a device-independent interface for 
configuring flow control on network interfaces, perhaps as media options via 
ifconfig.  I know that the msk(4) driver allows RX and TX flow control to be 
toggled via the link0 and link1 flags (the manpage for msk(4) needs updating 
on this topic I think).  I have a hack for work to disable TX flow control on 
cxgb(4), but it doesn't use flow control currently.  Is flow control ethernet-
specific?  If so, perhaps we could add two new flags for RX and TX flow 
control to the Ethernet-specific options in that case?  Do folks have other 
ideas?

-- 
John Baldwin



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