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vhost-user: add vhost-user

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add virtio and vhost-user functions to connect with QEMU.

  $ ./passt --vhost-user

and

  # qemu-system-x86_64 ... -m 4G \
        -object memory-backend-memfd,id=memfd0,share=on,size=4G \
        -numa node,memdev=memfd0 \
        -chardev socket,id=chr0,path=/tmp/passt_1.socket \
        -netdev vhost-user,id=netdev0,chardev=chr0 \
        -device virtio-net,mac=9a:2b:2c:2d:2e:2f,netdev=netdev0 \
        ...

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
This commit is contained in:
Laurent Vivier 2024-11-13 09:04:06 +01:00 • committed by Stefano Brivio
parent 007af94bb9
commit 92fe7e967a
24 changed files with 1412 additions and 54 deletions

11
udp.c
View file

@ -110,6 +110,7 @@
#include "log.h"
#include "flow_table.h"
#include "udp_internal.h"
#include "udp_vu.h"
/* "Spliced" sockets indexed by bound port (host order) */
static int udp_splice_ns [IP_VERSIONS][NUM_PORTS];
@ -628,6 +629,11 @@ void udp_listen_sock_handler(const struct ctx *c,
union epoll_ref ref, uint32_t events,
const struct timespec *now)
{
if (c->mode == MODE_VU) {
udp_vu_listen_sock_handler(c, ref, events, now);
return;
}
udp_buf_listen_sock_handler(c, ref, events, now);
}
@ -698,6 +704,11 @@ static void udp_buf_reply_sock_handler(const struct ctx *c, union epoll_ref ref,
void udp_reply_sock_handler(const struct ctx *c, union epoll_ref ref,
uint32_t events, const struct timespec *now)
{
if (c->mode == MODE_VU) {
udp_vu_reply_sock_handler(c, ref, events, now);
return;
}
udp_buf_reply_sock_handler(c, ref, events, now);
}