Re: kern/53562: bridge(4) breaks segmentation / TX checksum offloading

[Rin Okuyama <rokuyama%rk.phys.keio.ac.jp@localhost>]

On 2018/09/16 22:49, Rin Okuyama wrote:
> I implemented software TX/RX offload engines for ethernet:
>
>    http://www.netbsd.org/~rin/ether_offload_20180916.patch
>
> Using these routines, I wrote a patch where TX offloading is canceled in
> bridge_output() when the destination interface is different from the
> source interface:
>
>    http://www.netbsd.org/~rin/bridge_tx_offload_20180916.patch
>
> With this patch, the guest successfully communicates with the host even
> if any TX offloading is enabled on the host side.
>
> Also, I added TX/RX offloading support to shmif(4):
>
>    http://www.netbsd.org/~rin/shmif_offload_20180916.patch
>
> Since I'm not familiar with rump, this patch has not been tested
> systematically yet. But it seems to work to some extent...

I fixed a bug in the patch for ethernet:

    http://www.netbsd.org/~rin/ether_offload_20180917.patch

Other two patches are not updated:

    http://www.netbsd.org/~rin/bridge_tx_offload_20180916.patch
    http://www.netbsd.org/~rin/shmif_offload_20180916.patch

Thanks,
rin