Re: [PATCH netdev 5/5] virtio-net, xsk: virtio-net support xsk zero copy tx

2021-01-05 Thread kernel test robot
Hi Xuan, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on ipvs/master] [also build test WARNING on linus/master v5.11-rc2 next-20210104] [cannot apply to sparc-next/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submittin

[kbuild] Re: [PATCH netdev 5/5] virtio-net, xsk: virtio-net support xsk zero copy tx

2021-01-05 Thread Dan Carpenter
Hi Xuan, url: https://github.com/0day-ci/linux/commits/Xuan-Zhuo/virtio-net-support-xdp-socket-zero-copy-xmit/20210105-171505 base: https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs.git master config: i386-randconfig-m021-20210105 (attached as .config) compiler: gcc-9 (Debian 9.3.0

Re: [PATCH netdev 5/5] virtio-net, xsk: virtio-net support xsk zero copy tx

2021-01-05 Thread kernel test robot
Hi Xuan, Thank you for the patch! Yet something to improve: [auto build test ERROR on ipvs/master] [also build test ERROR on linus/master v5.11-rc2 next-20210104] [cannot apply to sparc-next/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch,

Re: [PATCH netdev 5/5] virtio-net, xsk: virtio-net support xsk zero copy tx

2021-01-05 Thread Michael S. Tsirkin
On Tue, Jan 05, 2021 at 05:11:43PM +0800, Xuan Zhuo wrote: > Virtio net support xdp socket. > > We should open the module param "napi_tx" for using this feature. what does this imply exactly? > In fact, various virtio implementations have some problems: > 1. The tx interrupt may be lost > 2. The

Re: [PATCH netdev 5/5] virtio-net, xsk: virtio-net support xsk zero copy tx

2021-01-05 Thread kernel test robot
Hi Xuan, Thank you for the patch! Yet something to improve: [auto build test ERROR on ipvs/master] [also build test ERROR on linus/master v5.11-rc2 next-20210104] [cannot apply to sparc-next/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch,

[PATCH netdev 5/5] virtio-net, xsk: virtio-net support xsk zero copy tx

2021-01-05 Thread Xuan Zhuo
Virtio net support xdp socket. We should open the module param "napi_tx" for using this feature. In fact, various virtio implementations have some problems: 1. The tx interrupt may be lost 2. The tx interrupt may have a relatively large delay This brings us to several questions: 1. Wakeup wakes