From 8801ccd0500437a86e3d15a806f37ebb84605dce Mon Sep 17 00:00:00 2001 From: Si-Wei Liu Date: Sat, 8 Oct 2022 00:58:58 -0700 Subject: vhost-vdpa: allow passing opened vhostfd to vhost-vdpa MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Similar to other vhost backends, vhostfd can be passed to vhost-vdpa backend as another parameter to instantiate vhost-vdpa net client. This would benefit the use case where only open file descriptors, as opposed to raw vhost-vdpa device paths, are accessible from the QEMU process. (qemu) netdev_add type=vhost-vdpa,vhostfd=61,id=vhost-vdpa1 Signed-off-by: Si-Wei Liu Acked-by: Eugenio Pérez Signed-off-by: Jason Wang --- qapi/net.json | 3 +++ 1 file changed, 3 insertions(+) (limited to 'qapi') diff --git a/qapi/net.json b/qapi/net.json index dd088c09c5..926ecc8cca 100644 --- a/qapi/net.json +++ b/qapi/net.json @@ -442,6 +442,8 @@ # @vhostdev: path of vhost-vdpa device # (default:'/dev/vhost-vdpa-0') # +# @vhostfd: file descriptor of an already opened vhost vdpa device +# # @queues: number of queues to be created for multiqueue vhost-vdpa # (default: 1) # @@ -456,6 +458,7 @@ { 'struct': 'NetdevVhostVDPAOptions', 'data': { '*vhostdev': 'str', + '*vhostfd': 'str', '*queues': 'int', '*x-svq': {'type': 'bool', 'features' : [ 'unstable'] } } } -- cgit v1.2.3 From 5166fe0ae46dbfed8cd7e7c3743c591caef81336 Mon Sep 17 00:00:00 2001 From: Laurent Vivier Date: Fri, 21 Oct 2022 11:09:11 +0200 Subject: qapi: net: add stream and dgram netdevs Copied from socket netdev file and modified to use SocketAddress to be able to introduce new features like unix socket. "udp" and "mcast" are squashed into dgram netdev, multicast is detected according to the IP address type. "listen" and "connect" modes are managed by stream netdev. An optional parameter "server" defines the mode (off by default) The two new types need to be parsed the modern way with -netdev, because with the traditional way, the "type" field of netdev structure collides with the "type" field of SocketAddress and prevents the correct evaluation of the command line option. Moreover the traditional way doesn't allow to use the same type (SocketAddress) several times with the -netdev option (needed to specify "local" and "remote" addresses). The previous commit paved the way for parsing the modern way, but omitted one detail: how to pick modern vs. traditional, in netdev_is_modern(). We want to pick based on the value of parameter "type". But how to extract it from the option argument? Parsing the option argument, either the modern or the traditional way, extracts it for us, but only if parsing succeeds. If parsing fails, there is no good option. No matter which parser we pick, it'll be the wrong one for some arguments, and the error reporting will be confusing. Fortunately, the traditional parser accepts *anything* when called in a certain way. This maximizes our chance to extract the value of "type", and in turn minimizes the risk of confusing error reporting. Signed-off-by: Laurent Vivier Reviewed-by: Stefano Brivio Acked-by: Markus Armbruster Acked-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- qapi/net.json | 66 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 64 insertions(+), 2 deletions(-) (limited to 'qapi') diff --git a/qapi/net.json b/qapi/net.json index 926ecc8cca..d476d33c72 100644 --- a/qapi/net.json +++ b/qapi/net.json @@ -7,6 +7,7 @@ ## { 'include': 'common.json' } +{ 'include': 'sockets.json' } ## # @set_link: @@ -576,6 +577,60 @@ '*isolated': 'bool' }, 'if': 'CONFIG_VMNET' } +## +# @NetdevStreamOptions: +# +# Configuration info for stream socket netdev +# +# @addr: socket address to listen on (server=true) +# or connect to (server=false) +# @server: create server socket (default: false) +# +# Only SocketAddress types 'inet' and 'fd' are supported. +# +# Since: 7.2 +## +{ 'struct': 'NetdevStreamOptions', + 'data': { + 'addr': 'SocketAddress', + '*server': 'bool' } } + +## +# @NetdevDgramOptions: +# +# Configuration info for datagram socket netdev. +# +# @remote: remote address +# @local: local address +# +# Only SocketAddress types 'inet' and 'fd' are supported. +# +# If remote address is present and it's a multicast address, local address +# is optional. Otherwise local address is required and remote address is +# optional. +# +# .. table:: Valid parameters combination table +# :widths: auto +# +# ============= ======== ===== +# remote local okay? +# ============= ======== ===== +# absent absent no +# absent not fd no +# absent fd yes +# multicast absent yes +# multicast present yes +# not multicast absent no +# not multicast present yes +# ============= ======== ===== +# +# Since: 7.2 +## +{ 'struct': 'NetdevDgramOptions', + 'data': { + '*local': 'SocketAddress', + '*remote': 'SocketAddress' } } + ## # @NetClientDriver: # @@ -587,10 +642,13 @@ # @vmnet-host since 7.1 # @vmnet-shared since 7.1 # @vmnet-bridged since 7.1 +# @stream since 7.2 +# @dgram since 7.2 ## { 'enum': 'NetClientDriver', - 'data': [ 'none', 'nic', 'user', 'tap', 'l2tpv3', 'socket', 'vde', - 'bridge', 'hubport', 'netmap', 'vhost-user', 'vhost-vdpa', + 'data': [ 'none', 'nic', 'user', 'tap', 'l2tpv3', 'socket', 'stream', + 'dgram', 'vde', 'bridge', 'hubport', 'netmap', 'vhost-user', + 'vhost-vdpa', { 'name': 'vmnet-host', 'if': 'CONFIG_VMNET' }, { 'name': 'vmnet-shared', 'if': 'CONFIG_VMNET' }, { 'name': 'vmnet-bridged', 'if': 'CONFIG_VMNET' }] } @@ -610,6 +668,8 @@ # 'vmnet-host' - since 7.1 # 'vmnet-shared' - since 7.1 # 'vmnet-bridged' - since 7.1 +# 'stream' since 7.2 +# 'dgram' since 7.2 ## { 'union': 'Netdev', 'base': { 'id': 'str', 'type': 'NetClientDriver' }, @@ -620,6 +680,8 @@ 'tap': 'NetdevTapOptions', 'l2tpv3': 'NetdevL2TPv3Options', 'socket': 'NetdevSocketOptions', + 'stream': 'NetdevStreamOptions', + 'dgram': 'NetdevDgramOptions', 'vde': 'NetdevVdeOptions', 'bridge': 'NetdevBridgeOptions', 'hubport': 'NetdevHubPortOptions', -- cgit v1.2.3 From 13c6be96618c4435ba412c098bfe35a76355bc45 Mon Sep 17 00:00:00 2001 From: Laurent Vivier Date: Fri, 21 Oct 2022 11:09:14 +0200 Subject: net: stream: add unix socket MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Laurent Vivier Reviewed-by: Stefano Brivio Acked-by: Michael S. Tsirkin Acked-by: Markus Armbruster (QAPI schema) Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Jason Wang --- qapi/net.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'qapi') diff --git a/qapi/net.json b/qapi/net.json index d476d33c72..b4768ce62b 100644 --- a/qapi/net.json +++ b/qapi/net.json @@ -586,7 +586,7 @@ # or connect to (server=false) # @server: create server socket (default: false) # -# Only SocketAddress types 'inet' and 'fd' are supported. +# Only SocketAddress types 'unix', 'inet' and 'fd' are supported. # # Since: 7.2 ## -- cgit v1.2.3 From 784e7a2531040824f88f33494be256a9e331e219 Mon Sep 17 00:00:00 2001 From: Laurent Vivier Date: Fri, 21 Oct 2022 11:09:17 +0200 Subject: net: dgram: add unix socket Signed-off-by: Laurent Vivier Reviewed-by: Stefano Brivio Reviewed-by: David Gibson Acked-by: Michael S. Tsirkin Acked-by: Markus Armbruster (QAPI schema) Signed-off-by: Jason Wang --- qapi/net.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'qapi') diff --git a/qapi/net.json b/qapi/net.json index b4768ce62b..cbc8d77c97 100644 --- a/qapi/net.json +++ b/qapi/net.json @@ -603,7 +603,7 @@ # @remote: remote address # @local: local address # -# Only SocketAddress types 'inet' and 'fd' are supported. +# Only SocketAddress types 'unix', 'inet' and 'fd' are supported. # # If remote address is present and it's a multicast address, local address # is optional. Otherwise local address is required and remote address is -- cgit v1.2.3 From e506fee8b1e092f6ac6f9459bf6a35b807644ad2 Mon Sep 17 00:00:00 2001 From: Laurent Vivier Date: Fri, 21 Oct 2022 11:09:22 +0200 Subject: net: stream: add QAPI events to report connection state The netdev reports NETDEV_STREAM_CONNECTED event when the backend is connected, and NETDEV_STREAM_DISCONNECTED when it is disconnected. The NETDEV_STREAM_CONNECTED event includes the destination address. This allows a system manager like libvirt to detect when the server fails. For instance with passt: { 'execute': 'qmp_capabilities' } { "return": { } } { "timestamp": { "seconds": 1666341395, "microseconds": 505347 }, "event": "NETDEV_STREAM_CONNECTED", "data": { "netdev-id": "netdev0", "addr": { "path": "/tmp/passt_1.socket", "type": "unix" } } } [killing passt here] { "timestamp": { "seconds": 1666341430, "microseconds": 968694 }, "event": "NETDEV_STREAM_DISCONNECTED", "data": { "netdev-id": "netdev0" } } Signed-off-by: Laurent Vivier Acked-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- qapi/net.json | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) (limited to 'qapi') diff --git a/qapi/net.json b/qapi/net.json index cbc8d77c97..522ac582ed 100644 --- a/qapi/net.json +++ b/qapi/net.json @@ -898,3 +898,52 @@ ## { 'event': 'FAILOVER_NEGOTIATED', 'data': {'device-id': 'str'} } + +## +# @NETDEV_STREAM_CONNECTED: +# +# Emitted when the netdev stream backend is connected +# +# @netdev-id: QEMU netdev id that is connected +# @addr: The destination address +# +# Since: 7.2 +# +# Example: +# +# <- { "event": "NETDEV_STREAM_CONNECTED", +# "data": { "netdev-id": "netdev0", +# "addr": { "port": "47666", "ipv6": true, +# "host": "::1", "type": "inet" } }, +# "timestamp": { "seconds": 1666269863, "microseconds": 311222 } } +# +# or +# +# <- { "event": "NETDEV_STREAM_CONNECTED", +# "data": { "netdev-id": "netdev0", +# "addr": { "path": "/tmp/qemu0", "type": "unix" } }, +# "timestamp": { "seconds": 1666269706, "microseconds": 413651 } } +# +## +{ 'event': 'NETDEV_STREAM_CONNECTED', + 'data': { 'netdev-id': 'str', + 'addr': 'SocketAddress' } } + +## +# @NETDEV_STREAM_DISCONNECTED: +# +# Emitted when the netdev stream backend is disconnected +# +# @netdev-id: QEMU netdev id that is disconnected +# +# Since: 7.2 +# +# Example: +# +# <- { 'event': 'NETDEV_STREAM_DISCONNECTED', +# 'data': {'netdev-id': 'netdev0'}, +# 'timestamp': {'seconds': 1663330937, 'microseconds': 526695} } +# +## +{ 'event': 'NETDEV_STREAM_DISCONNECTED', + 'data': { 'netdev-id': 'str' } } -- cgit v1.2.3