From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCH v4 1/7] ether: add function to query for link
 state interrupt
Date: Wed, 8 Feb 2017 15:25:08 -0800
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On Wed, 8 Jul 2015 23:42:05 +0000
Thomas Monjalon <thomas.monjalon@6wind.com> wrote:

> 2015-04-21 10:32, Stephen Hemminger:
> > Allow application to query whether link state will work.
> > This is also part of abstracting dependency on PCI.
> > 
> > Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> > ---
> >  lib/librte_ether/rte_ethdev.c | 14 ++++++++++++++
> >  lib/librte_ether/rte_ethdev.h | 12 ++++++++++++  
> [...]
> >  /**
> > + * Test whether device supports link state interrupt mode.
> > + *
> > + * @param port_id
> > + *   The port identifier of the Ethernet device.
> > + * @return
> > + *   - (1) if link state interrupt is supported
> > + *   - (0) if link state interrupt is not supported
> > + */
> > +extern int
> > +rte_eth_has_link_state(uint8_t port_id);  
> 
> It requires change in map file to work with shared library.

A better way to solve this to move drv_flags out of PCI driver and into generic driver
data structure.