Reply for correct mail format.
> -----Original Message-----
> From: Dai, Wei
> Sent: Wednesday, October 11, 2017 3:07 PM
> To: Ma, Jianwei <jianwei...@intel.com>; Lu, Wenzhuo
> <wenzhuo...@intel.com>; Ananyev, Konstantin
> <konstantin.anan...@intel.com>; Liang, Cunming
> <cunming.li...@intel.com>
> Cc: dev@dpdk.org; sta...@dpdk.org
> Subject: RE: [PATCH v2] net/ixgbe: fix VFIO interrupt mapping in VF
>
> I look through from web browser and not find following mail from Jianwei
> Ma <jianwei...@intel.com> Hope this can add his test result in the mail list
> to community.
>
> > -----Original Message-----
> > From: Ma, Jianwei
> > Sent: Tuesday, October 10, 2017 4:47 PM
> > To: Dai, Wei <wei....@intel.com>; Lu, Wenzhuo
> <wenzhuo...@intel.com>;
> > Ananyev, Konstantin <konstantin.anan...@intel.com>; Liang, Cunming
> > <cunming.li...@intel.com>
> > Cc: dev@dpdk.org; sta...@dpdk.org
> > Subject: RE: [PATCH v2] net/ixgbe: fix VFIO interrupt mapping in VF
> >
> > Verified with l3fwd-power. It worked well with this patch plus
> > http://dpdk.org/dev/patchwork/patch/29000/ " [dpdk-dev] net/ixgbe:
> > fix Rx queue interrupt mapping in VF"
> >
> > -----Original Message-----
> > From: Dai, Wei
> > Sent: Tuesday, October 10, 2017 11:30
> > To: Lu, Wenzhuo <wenzhuo...@intel.com>; Ananyev, Konstantin
> > <konstantin.anan...@intel.com>; Liang, Cunming
> > <cunming.li...@intel.com>; Ma, Jianwei <jianwei...@intel.com>
> > Cc: dev@dpdk.org; sta...@dpdk.org
> > Subject: RE: [PATCH v2] net/ixgbe: fix VFIO interrupt mapping in VF
> >
> > Hi, Jianwei
> > How about your test result ?
> >
> > Hi Wenzhuo
> > Would you please review this patch ?
> >
> > Thanks a lot !
> >
> > > -----Original Message-----
> > > From: Dai, Wei
> > > Sent: Thursday, September 28, 2017 10:29 AM
> > > To: Lu, Wenzhuo <wenzhuo...@intel.com>; Ananyev, Konstantin
> > > <konstantin.anan...@intel.com>; Liang, Cunming
> > > <cunming.li...@intel.com>; Ma, Jianwei <jianwei...@intel.com>
> > > Cc: dev@dpdk.org; Dai, Wei <wei....@intel.com>; sta...@dpdk.org
> > > Subject: [PATCH v2] net/ixgbe: fix VFIO interrupt mapping in VF
> > >
> > > When a VF port is bound to VFIO-PIC, only miscellaneous interrupt is
> > > mapped to VFIO vector 0 in eth_ixgbevf_dev_init( ).
> > > In ixgbevf_dev_start(), if previous VFIO interrupt mapping set in
> > > eth_ixgbevf_dev_init( ) is not cleard, it will fail when calling
> > > rte_intr_enable( ) tries to map Rx queue interrupt to other VFIO
> > > vectors. This patch clears the VFIO interrupt mappings before
> > > setting both miscellaneous and Rx queue interrupt mappings again to
> > > avoid
> > failure.
> > >
> > > Fixes: 77234603fba0 ("net/ixgbe: support VF mailbox interrupt for
> > > link
> > > up/down")
> > > Cc: sta...@dpdk.org
> > >
> > > Signed-off-by: Wei Dai <wei....@intel.com>
Tested-by: Jianwei Ma <jianwei...@intel.com>
> > > ---
> > > drivers/net/ixgbe/ixgbe_ethdev.c | 9 +++++++++
> > > 1 file changed, 9 insertions(+)
> > >
> > > diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> > > b/drivers/net/ixgbe/ixgbe_ethdev.c
> > > index 9ca5cbc..f49c616 100644
> > > --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> > > +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> > > @@ -5046,6 +5046,15 @@ ixgbevf_dev_start(struct rte_eth_dev *dev)
> > > }
> > > ixgbevf_configure_msix(dev);
> > >
> > > + /* When a VF port is bound to VFIO-PCI, only miscellaneous
> interrupt
> > > + * is mapped to VFIO vector 0 in eth_ixgbevf_dev_init( ).
> > > + * If previous VFIO interrupt mapping setting in
> eth_ixgbevf_dev_init( )
> > > + * is not cleared, it will fail when following rte_intr_enable( ) tries
> > > + * to map Rx queue interrupt to other VFIO vectors.
> > > + * So clear uio/vfio intr/evevnfd first to avoid failure.
> > > + */
> > > + rte_intr_disable(intr_handle);
> > > +
> > > rte_intr_enable(intr_handle);
> > >
> > > /* Re-enable interrupt for VF */
> > > --
> > > 2.7.5
