netdev - [PATCH RFC 0/2] Add extended pause query capability

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Date:	Fri, 14 Oct 2011 13:54:00 -0700
From:	"Matt Carlson" <mcarlson@...adcom.com>
To:	davem@...emloft.net
cc:	netdev@...r.kernel.org, mcarlson@...adcom.com,
	bhutchings@...arflare.com
Subject: [PATCH RFC 0/2] Add extended pause query capability

The current implementation of get_pauseparam allows userspace to query the
flow control configuration, but not the flow control status.  This patchset
defines a new ethtool_pauseparamext structure and adds a new
get_pauseparamext ethtool callback to support it.  The new facilities allow
the driver to report both config and status in the same query.

Please note that Ben Hutchings' suggestion to deduce the flow control settings
through the 'advertising' and 'lp_advertising' from ETHTOOL_GSET was considered,
but rejected because there was no way to know if the flow control
advertisements reported were valid.

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