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2df4dd31e1
qemu/net
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Eugenio Pérez 2df4dd31e1 vdpa: Buffer CVQ support on shadow virtqueue 
Introduce the control virtqueue support for vDPA shadow virtqueue. This
is needed for advanced networking features like rx filtering.

Virtio-net control VQ copies the descriptors to qemu's VA, so we avoid
TOCTOU with the guest's or device's memory every time there is a device
model change.  Otherwise, the guest could change the memory content in
the time between qemu and the device read it.

To demonstrate command handling, VIRTIO_NET_F_CTRL_MACADDR is
implemented.  If the virtio-net driver changes MAC the virtio-net device
model will be updated with the new one, and a rx filtering change event
will be raised.

More cvq commands could be added here straightforwardly but they have
not been tested.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2022-07-20 16:58:08 +08:00
..
can util/log: Remove qemu_log_flush 2022-04-20 10:51:11 -07:00
announce.c include: move C/util-related declarations to cutils.h 2022-04-06 14:31:43 +02:00
checksum.c net/checksum: Remove unused variable in net_checksum_add_iov 2021-07-26 07:06:58 -10:00
clients.h net/vmnet: add vmnet backends to qapi/net 2022-05-17 16:48:23 +08:00
colo-compare.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
colo-compare.h Add the function of colo_compare_cleanup 2021-06-11 10:30:13 +08:00
colo.c Optimized the function of fill_connection_key. 2021-11-03 09:39:48 +01:00
colo.h Optimized the function of fill_connection_key. 2021-11-03 09:39:48 +01:00
dump.c rtc: Move RTC function prototypes to their own header 2022-01-28 14:29:46 +00:00
eth.c net/eth: Don't consider ESP to be an IPv6 option header 2022-02-14 11:50:44 +08:00
filter-buffer.c netfilter: Use class properties 2020-12-15 10:02:07 -05:00
filter-mirror.c net/filter: Optimize filter_send to coroutine 2022-02-14 11:50:44 +08:00
filter-replay.c hw: Do not include qemu/log.h if it is not necessary 2021-05-02 17:24:50 +02:00
filter-rewriter.c Optimized the function of fill_connection_key. 2021-11-03 09:39:48 +01:00
filter.c netfilter: Use class properties 2020-12-15 10:02:07 -05:00
hub.c hw/net: Make NetCanReceive() return a boolean 2020-03-31 21:14:35 +08:00
hub.h net: Remove deprecated [hub_id name] tuple of 'hostfwd_add' / 'hostfwd_remove' 2020-03-09 18:44:04 +00:00
l2tpv3.c util: rename qemu_*block() socket functions 2022-05-03 15:53:20 +04:00
meson.build vhost-net-vdpa: add stubs for when no virtio-net device is present 2022-07-20 16:58:08 +08:00
net.c net/vmnet: add vmnet backends to qapi/net 2022-05-17 16:48:23 +08:00
netmap.c Do not include sysemu/sysemu.h if it's not really necessary 2021-05-02 17:24:50 +02:00
queue.c net: introduce qemu_receive_packet() 2021-03-15 16:41:22 +08:00
slirp.c net: slirp: add support for CFI-friendly timer API 2022-05-12 12:29:44 +02:00
socket.c util: rename qemu_*block() socket functions 2022-05-03 15:53:20 +04:00
tap_int.h net: Added SetSteeringEBPF method for NetClientState. 2021-06-04 15:25:46 +08:00
tap-bsd.c Replace fcntl(O_NONBLOCK) with g_unix_set_fd_nonblocking() 2022-05-03 15:47:38 +04:00
tap-linux.c Replace fcntl(O_NONBLOCK) with g_unix_set_fd_nonblocking() 2022-05-03 15:47:38 +04:00
tap-linux.h net/tap: Added TUNSETSTEERINGEBPF code. 2021-06-04 15:25:46 +08:00
tap-solaris.c Replace fcntl(O_NONBLOCK) with g_unix_set_fd_nonblocking() 2022-05-03 15:47:38 +04:00
tap-stub.c net: Added SetSteeringEBPF method for NetClientState. 2021-06-04 15:25:46 +08:00
tap-win32.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
tap.c net: replace qemu_set_nonblock() 2022-05-03 15:52:47 +04:00
trace-events docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
util.c
util.h Replace config-time define HOST_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
vde.c Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
vhost-user-stub.c
vhost-user.c net/vhost-user: Fix device compatibility check 2021-10-15 16:05:46 +02:00
vhost-vdpa-stub.c vhost-net-vdpa: add stubs for when no virtio-net device is present 2022-07-20 16:58:08 +08:00
vhost-vdpa.c vdpa: Buffer CVQ support on shadow virtqueue 2022-07-20 16:58:08 +08:00
vmnet_int.h net/vmnet: implement shared mode (vmnet-shared) 2022-05-17 16:48:23 +08:00
vmnet-bridged.m net/vmnet: implement bridged mode (vmnet-bridged) 2022-05-17 16:48:23 +08:00
vmnet-common.m net/vmnet: implement shared mode (vmnet-shared) 2022-05-17 16:48:23 +08:00
vmnet-host.c net/vmnet: implement host mode (vmnet-host) 2022-05-17 16:48:23 +08:00
vmnet-shared.c net/vmnet: implement shared mode (vmnet-shared) 2022-05-17 16:48:23 +08:00