> -----Original Message----- > From: Stephen Hemminger [mailto:stephen at networkplumber.org] > Sent: Wednesday, February 11, 2015 12:33 PM > To: Ouyang, Changchun > Cc: dev at dpdk.org; Xie, Huawei; Cao, Waterman; Xu, Qian Q > Subject: Re: [PATCH v4 17/26] virtio: Use port IO to get PCI resource. > > On Mon, 9 Feb 2015 09:14:06 +0800 > Ouyang Changchun <changchun.ouyang at intel.com> wrote: > > > Make virtio not require UIO for some security reasons, this is to match > 6Wind's virtio-net-pmd. > > > > Signed-off-by: Changchun Ouyang <changchun.ouyang at intel.com> > > This breaks applications that use link state interrupt. > > If the non-UIO mode is used link state interrupt fd is not available.
If application use link state interrupt, then let it work in uio mode rather than proc/ioports mode, As we know proc/ioports hasn't interrupt, 6wind implementation also don't introduce interrupt in it. Thanks Changchun
