netdev - Re: [PATCH net-next 00/14] vsock: add multi-transports support

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Message-ID: <20191027080146.GA4472@stefanha-x1.localdomain>
Date:   Sun, 27 Oct 2019 09:01:46 +0100
From:   Stefan Hajnoczi <stefanha@...il.com>
To:     Stefano Garzarella <sgarzare@...hat.com>
Cc:     netdev@...r.kernel.org, Sasha Levin <sashal@...nel.org>,
        linux-hyperv@...r.kernel.org,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Arnd Bergmann <arnd@...db.de>, kvm@...r.kernel.org,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Dexuan Cui <decui@...rosoft.com>, linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stefan Hajnoczi <stefanha@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jorgen Hansen <jhansen@...are.com>
Subject: Re: [PATCH net-next 00/14] vsock: add multi-transports support

On Wed, Oct 23, 2019 at 11:55:40AM +0200, Stefano Garzarella wrote:
> This series adds the multi-transports support to vsock, following
> this proposal: https://www.spinics.net/lists/netdev/msg575792.html
> 
> With the multi-transports support, we can use VSOCK with nested VMs
> (using also different hypervisors) loading both guest->host and
> host->guest transports at the same time.
> Before this series, vmci-transport supported this behavior but only
> using VMware hypervisor on L0, L1, etc.
> 
> RFC: https://patchwork.ozlabs.org/cover/1168442/
> RFC -> v1:
> - Added R-b/A-b from Dexuan and Stefan
> - Fixed comments and typos in several patches (Stefan)
> - Patch 7: changed .notify_buffer_size return to void (Stefan)
> - Added patch 8 to simplify the API exposed to the transports (Stefan)
> - Patch 11:
>   + documented VSOCK_TRANSPORT_F_* flags (Stefan)
>   + fixed vsock_assign_transport() when the socket is already assigned
>   + moved features outside of struct vsock_transport, and used as
>     parameter of vsock_core_register() as a preparation of Patch 12
> - Removed "vsock: add 'transport_hg' to handle g2h\h2g transports" patch
> - Added patch 12 to register vmci_transport only when VMCI guest/host
>   are active

Has there been feedback from Jorgen or someone else from VMware?  A
Reviewed-by or Acked-by would be nice since this patch series affects
VMCI AF_VSOCK.

Stefan

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