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authorArnd Bergmann <arnd@arndb.de>2010-02-18 05:46:50 +0000
committerDavid S. Miller <davem@davemloft.net>2010-02-18 14:08:38 -0800
commit501c774cb13c3ef8fb7fc5f08fa19473f7d9a0db (patch)
tree65db25ce76a5c038d69c304d9b6456e4f68e9f47 /drivers/vhost
parent02df55d28c6001a3cdb7a997a34a0b01f01d015e (diff)
downloadop-kernel-dev-501c774cb13c3ef8fb7fc5f08fa19473f7d9a0db.zip
op-kernel-dev-501c774cb13c3ef8fb7fc5f08fa19473f7d9a0db.tar.gz
net/macvtap: add vhost support
This adds support for passing a macvtap file descriptor into vhost-net, much like we already do for tun/tap. Most of the new code is taken from the respective patch in the tun driver and may get consolidated in the future. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/vhost')
-rw-r--r--drivers/vhost/Kconfig2
-rw-r--r--drivers/vhost/net.c8
2 files changed, 7 insertions, 3 deletions
diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
index 9e93553..e4e2fd1 100644
--- a/drivers/vhost/Kconfig
+++ b/drivers/vhost/Kconfig
@@ -1,6 +1,6 @@
config VHOST_NET
tristate "Host kernel accelerator for virtio net (EXPERIMENTAL)"
- depends on NET && EVENTFD && (TUN || !TUN) && EXPERIMENTAL
+ depends on NET && EVENTFD && (TUN || !TUN) && (MACVTAP || !MACVTAP) && EXPERIMENTAL
---help---
This kernel module can be loaded in host kernel to accelerate
guest networking with virtio_net. Not to be confused with virtio_net
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 4c89283..91a324c 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -22,6 +22,7 @@
#include <linux/if_packet.h>
#include <linux/if_arp.h>
#include <linux/if_tun.h>
+#include <linux/if_macvlan.h>
#include <net/sock.h>
@@ -452,13 +453,16 @@ err:
return ERR_PTR(r);
}
-static struct socket *get_tun_socket(int fd)
+static struct socket *get_tap_socket(int fd)
{
struct file *file = fget(fd);
struct socket *sock;
if (!file)
return ERR_PTR(-EBADF);
sock = tun_get_socket(file);
+ if (!IS_ERR(sock))
+ return sock;
+ sock = macvtap_get_socket(file);
if (IS_ERR(sock))
fput(file);
return sock;
@@ -473,7 +477,7 @@ static struct socket *get_socket(int fd)
sock = get_raw_socket(fd);
if (!IS_ERR(sock))
return sock;
- sock = get_tun_socket(fd);
+ sock = get_tap_socket(fd);
if (!IS_ERR(sock))
return sock;
return ERR_PTR(-ENOTSOCK);
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