[dpdk-dev] [PATCH] lib: fix DCB config issue on ixgbe

[Lu, Wenzhuo]

Hi Thomas,

> -----Original Message-----
> From: Thomas Monjalon [mailto:thomas.monjalon at 6wind.com]
> Sent: Monday, April 11, 2016 5:52 PM
> To: Lu, Wenzhuo
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] lib: fix DCB config issue on ixgbe
> 
> 2016-04-11 16:24, Wenzhuo Lu:
> > An issue is found that DCB cannot be configged on ixgbe NICs. It's
> > said the TX queue number is not right.
> > On ixgbe the max TX queue number is not fixed, it depends on the
> > multi-queue mode. The API rte_eth_dev_configure should be used to
> > config this mode. But the input of this API includes TX queue number.
> > The problem is before the mode is configged, we cannot decide the TX
> > queue number.
> >
> > This patch adds an API to config RX & TX multi-queue mode separately.
> > After the mode is configged, the max RX & TX queue number is decided.
> > Then we can set the appropriate RX & TX queue number.
> >
> > Fixes: 96c0450dff86 (ixgbe: fix dropping packets from unsupported Tx
> > queues)
> > Signed-off-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
> > ---
> >  app/test-pmd/testpmd.c                 | 40 +++++++++++++++++++---------------
> >  lib/librte_ether/rte_ethdev.c          | 17 +++++++++++++++
> >  lib/librte_ether/rte_ethdev.h          | 19 ++++++++++++++++
> >  lib/librte_ether/rte_ether_version.map |  1 +
> >  4 files changed, 59 insertions(+), 18 deletions(-)
> 
> Obviously, it will be considered for 16.07.
OK. I've got some feedback from the users that DCB is working, so I think it's not a critical issue and maybe only testpmd is impacted.
I'll send a new version later. As rte_ether_version.map should be change for 16.07.
Thanks.