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As a preparation to support multiple transports, this patch adds the 'transport' member at the 'struct vsock_sock'. This new field is initialized during the creation in the __vsock_create() function. This patch also renames the global 'transport' pointer to 'transport_single', since for now we're only supporting a single transport registered at run-time. Signed-off-by: Stefano Garzarella <sgarzare at redhat.com> --- include/net/af_vsock.h | 1 + net/vmw_vsock/af_vsock.c | 56 +++++++++++++++++++++++++++------------- 2 files changed, 39 insertions(+)...

As a preparation to support multiple transports, this patch adds the 'transport' member at the 'struct vsock_sock'. This new field is initialized during the creation in the __vsock_create() function. This patch also renames the global 'transport' pointer to 'transport_single', since for now we're only supporting a single transport registered at run-time. Reviewed-by: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Stefano Garzarella <sgarzare at redhat.com> --- include/net/af_vsock.h | 1 + net/vmw_vsock/af_vsock.c | 56 +++++++++++++++...

...onst struct vsock_transport *vsock_core_get_transport(void) > +const struct vsock_transport *vsock_core_get_transport(struct vsock_sock *vsk) > { > /* vsock_register_mutex not taken since only the transport uses this > * function and only while registered. > */ > - return transport_single; This comment is about protecting transport_single. It no longer applies when using vsk->transport. Please drop it. Otherwise: Reviewed-by: Stefan Hajnoczi <stefanha at redhat.com> -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type:...

...ock.c index d89381166028..dddd85d9a147 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -130,7 +130,12 @@ static struct proto vsock_proto = { #define VSOCK_DEFAULT_BUFFER_MAX_SIZE (1024 * 256) #define VSOCK_DEFAULT_BUFFER_MIN_SIZE 128 -static const struct vsock_transport *transport_single; +/* Transport used for host->guest communication */ +static const struct vsock_transport *transport_h2g; +/* Transport used for guest->host communication */ +static const struct vsock_transport *transport_g2h; +/* Transport used for DGRAM communication */ +static const struct vsock_transpor...

...ock.c index 95e6db21e7e1..c52203fe52c4 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -130,7 +130,12 @@ static struct proto vsock_proto = { #define VSOCK_DEFAULT_BUFFER_MAX_SIZE (1024 * 256) #define VSOCK_DEFAULT_BUFFER_MIN_SIZE 128 -static const struct vsock_transport *transport_single; +/* Transport used for host->guest communication */ +static const struct vsock_transport *transport_h2g; +/* Transport used for guest->host communication */ +static const struct vsock_transport *transport_g2h; +/* Transport used for DGRAM communication */ +static const struct vsock_transpor...

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

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

Hi all, 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

Hi all, 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

...irtio_transport_get_ops(), that uses the vsock_core_get_transport(), adding the 'struct vsock_sock *' parameter. Reviewed-by: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Stefano Garzarella <sgarzare at redhat.com> --- RFC -> v1: - Removed comment about protecting transport_single (Stefan) --- include/net/af_vsock.h | 2 +- net/vmw_vsock/af_vsock.c | 7 ++----- net/vmw_vsock/virtio_transport_common.c | 9 +++++---- 3 files changed, 8 insertions(+), 10 deletions(-) diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h index a5e1e13426...

Most of the patches are reviewed by Dexuan, Stefan, and Jorgen. The following patches need reviews: - [11/15] vsock: add multi-transports support - [12/15] vsock/vmci: register vmci_transport only when VMCI guest/host are active - [15/15] vhost/vsock: refuse CID assigned to the guest->host transport RFC: https://patchwork.ozlabs.org/cover/1168442/ v1:

...BOL_GPL(vsock_core_exit); -const struct vsock_transport *vsock_core_get_transport(void) +const struct vsock_transport *vsock_core_get_transport(struct vsock_sock *vsk) { /* vsock_register_mutex not taken since only the transport uses this * function and only while registered. */ - return transport_single; + return vsk->transport; } EXPORT_SYMBOL_GPL(vsock_core_get_transport); diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index 382536b69029..fc046c071178 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_...

...a147 100644 > --- a/net/vmw_vsock/af_vsock.c > +++ b/net/vmw_vsock/af_vsock.c > @@ -130,7 +130,12 @@ static struct proto vsock_proto = { #define > VSOCK_DEFAULT_BUFFER_MAX_SIZE (1024 * 256) #define > VSOCK_DEFAULT_BUFFER_MIN_SIZE 128 > > -static const struct vsock_transport *transport_single; > +/* Transport used for host->guest communication */ static const struct > +vsock_transport *transport_h2g; > +/* Transport used for guest->host communication */ static const struct > +vsock_transport *transport_g2h; > +/* Transport used for DGRAM communication */ static con...

...a147 100644 > --- a/net/vmw_vsock/af_vsock.c > +++ b/net/vmw_vsock/af_vsock.c > @@ -130,7 +130,12 @@ static struct proto vsock_proto = { #define > VSOCK_DEFAULT_BUFFER_MAX_SIZE (1024 * 256) #define > VSOCK_DEFAULT_BUFFER_MIN_SIZE 128 > > -static const struct vsock_transport *transport_single; > +/* Transport used for host->guest communication */ static const struct > +vsock_transport *transport_h2g; > +/* Transport used for guest->host communication */ static const struct > +vsock_transport *transport_g2h; > +/* Transport used for DGRAM communication */ static con...

...gt; +++ b/net/vmw_vsock/af_vsock.c > > > @@ -130,7 +130,12 @@ static struct proto vsock_proto = { #define > > > VSOCK_DEFAULT_BUFFER_MAX_SIZE (1024 * 256) #define > > > VSOCK_DEFAULT_BUFFER_MIN_SIZE 128 > > > > > > -static const struct vsock_transport *transport_single; > > > +/* Transport used for host->guest communication */ static const struct > > > +vsock_transport *transport_h2g; > > > +/* Transport used for guest->host communication */ static const struct > > > +vsock_transport *transport_g2h; > > > +/* Tr...

...gt; +++ b/net/vmw_vsock/af_vsock.c > > > @@ -130,7 +130,12 @@ static struct proto vsock_proto = { #define > > > VSOCK_DEFAULT_BUFFER_MAX_SIZE (1024 * 256) #define > > > VSOCK_DEFAULT_BUFFER_MIN_SIZE 128 > > > > > > -static const struct vsock_transport *transport_single; > > > +/* Transport used for host->guest communication */ static const struct > > > +vsock_transport *transport_h2g; > > > +/* Transport used for guest->host communication */ static const struct > > > +vsock_transport *transport_g2h; > > > +/* Tr...

..._vsock/af_vsock.c > > +++ b/net/vmw_vsock/af_vsock.c > > @@ -130,7 +130,12 @@ static struct proto vsock_proto = { #define > > VSOCK_DEFAULT_BUFFER_MAX_SIZE (1024 * 256) #define > > VSOCK_DEFAULT_BUFFER_MIN_SIZE 128 > > > > -static const struct vsock_transport *transport_single; > > +/* Transport used for host->guest communication */ static const struct > > +vsock_transport *transport_h2g; > > +/* Transport used for guest->host communication */ static const struct > > +vsock_transport *transport_g2h; > > +/* Transport used for DGRAM co...

...f_vsock.c > > > > @@ -130,7 +130,12 @@ static struct proto vsock_proto = { #define > > > > VSOCK_DEFAULT_BUFFER_MAX_SIZE (1024 * 256) #define > > > > VSOCK_DEFAULT_BUFFER_MIN_SIZE 128 > > > > > > > > -static const struct vsock_transport *transport_single; > > > > +/* Transport used for host->guest communication */ static const struct > > > > +vsock_transport *transport_h2g; > > > > +/* Transport used for guest->host communication */ static const struct > > > > +vsock_transport *transport_g2h; &...

...9a147 100644 > --- a/net/vmw_vsock/af_vsock.c > +++ b/net/vmw_vsock/af_vsock.c > @@ -130,7 +130,12 @@ static struct proto vsock_proto = { > #define VSOCK_DEFAULT_BUFFER_MAX_SIZE (1024 * 256) > #define VSOCK_DEFAULT_BUFFER_MIN_SIZE 128 > > -static const struct vsock_transport *transport_single; > +/* Transport used for host->guest communication */ > +static const struct vsock_transport *transport_h2g; > +/* Transport used for guest->host communication */ > +static const struct vsock_transport *transport_g2h; > +/* Transport used for DGRAM communication */ > +stat...

...9a147 100644 > --- a/net/vmw_vsock/af_vsock.c > +++ b/net/vmw_vsock/af_vsock.c > @@ -130,7 +130,12 @@ static struct proto vsock_proto = { > #define VSOCK_DEFAULT_BUFFER_MAX_SIZE (1024 * 256) > #define VSOCK_DEFAULT_BUFFER_MIN_SIZE 128 > > -static const struct vsock_transport *transport_single; > +/* Transport used for host->guest communication */ > +static const struct vsock_transport *transport_h2g; > +/* Transport used for guest->host communication */ > +static const struct vsock_transport *transport_g2h; > +/* Transport used for DGRAM communication */ > +stat...