Re: [dpdk-dev] [PATCH v2 2/3] net/virtio: virtual PCI requires smp barriers

2019-12-20 Thread Gavin Hu
Hi Tiwei, Thanks for review. > -Original Message- > From: Tiwei Bie > Sent: Friday, December 20, 2019 4:18 PM > To: Gavin Hu > Cc: dev@dpdk.org; nd ; david.march...@redhat.com; > tho...@monjalon.net; rasl...@mellanox.com; > maxime.coque...@redhat.com; hemant.agra...@nxp.com; > jer...@ma

Re: [dpdk-dev] [PATCH v2 2/3] net/virtio: virtual PCI requires smp barriers

2019-12-20 Thread Tiwei Bie
On Fri, Dec 20, 2019 at 11:09:50AM +0800, Gavin Hu wrote: > Other than real PCI reads and writes to the device memory requiring > the io barriers, virtual pci memories are normal memory in the smp > configuration, which requires the smp barriers. > > Since the smp barriers and io barriers are iden