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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Bruce Richardson <bruce.richardson@intel.com>
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Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [BUG] ixgbe vector cannot compile without bulk alloc
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2014-12-01 17:18, Bruce Richardson:
> On Mon, Dec 01, 2014 at 06:10:18PM +0100, Thomas Monjalon wrote:
> > These 2 configuration options are incompatible:
> > =09CONFIG_RTE_LIBRTE_IXGBE_RX_ALLOW_BULK_ALLOC=3Dn
> > =09CONFIG_RTE_IXGBE_INC_VECTOR=3Dy
> > Building this config gives this error:
> > =09lib/librte_pmd_ixgbe/ixgbe_rxtx_vec.c:69:24:
> > =09error: =E2=80=98struct igb_rx_queue=E2=80=99 has no member named=
 =E2=80=98fake_mbuf=E2=80=99
> >=20
> > I'd like a confirmation that it will be always incompatible.
> > Thanks
>=20
> Hi Thomas,
>=20
> I don't think these options should always be incompatible, though as =
you point
> out you do need to turn on bulk alloc support in order to use the vec=
tor PMD.
> Why do you ask? There are no immediate plans to remove the dependency=
 on our end.

I think the compilation shouldn't fail without a proper message.
In order to distinguish a real compilation error from an incompatibilit=
y,
we should add a warning in the makefile.
Ideally, the build system should handle dependencies. But waiting this =
ideal
time, a warning would be graceful.

--=20
Thomas