On Sun, Mar 06, 2016 at 08:20:00PM -0800, Stephen Hemminger wrote:
> On Thu, 18 Feb 2016 21:49:09 +0800
> Yuanhan Liu wrote:
>
> > +static inline void
> > +copy_virtio_net_hdr(struct vhost_virtqueue *vq, uint64_t desc_addr,
> > + struct virtio_net_hdr_mrg_rxbuf hdr)
> > +{
> > + i
On 3/7/2016 12:20 PM, Stephen Hemminger wrote:
> On Thu, 18 Feb 2016 21:49:09 +0800
> Yuanhan Liu wrote:
>
>> +static inline void
>> +copy_virtio_net_hdr(struct vhost_virtqueue *vq, uint64_t desc_addr,
>> +struct virtio_net_hdr_mrg_rxbuf hdr)
>> +{
>> +if (vq->vhost_hlen == siz
On 2/18/2016 9:48 PM, Yuanhan Liu wrote:
> Signed-off-by: Yuanhan Liu
Acked-by: Huawei Xie
On Thu, 18 Feb 2016 21:49:09 +0800
Yuanhan Liu wrote:
> +static inline void
> +copy_virtio_net_hdr(struct vhost_virtqueue *vq, uint64_t desc_addr,
> + struct virtio_net_hdr_mrg_rxbuf hdr)
> +{
> + if (vq->vhost_hlen == sizeof(struct virtio_net_hdr_mrg_rxbuf)) {
> +
First of all, rte_memcpy() is mostly useful for coping big packets
by leveraging hardware advanced instructions like AVX. But for virtio
net hdr, which is 12 bytes at most, invoking rte_memcpy() will not
introduce any performance boost.
And, to my suprise, rte_memcpy() is VERY huge. Since rte_memc
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