From: Yuri Benditovich <yuri.benditov...@daynix.com>
Tap indicates support for USO features according to
capabilities of current kernel module.
Signed-off-by: Yuri Benditovich <yuri.benditov...@daynix.com>
Signed-off-by: Andrew Melnychecnko <and...@daynix.com>
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
include/net/net.h | 3 +++
net/net.c | 9 +++++++++
net/tap-bsd.c | 5 +++++
net/tap-linux.c | 12 ++++++++++++
net/tap-solaris.c | 5 +++++
net/tap-stub.c | 5 +++++
net/tap.c | 12 ++++++++++++
net/tap_int.h | 1 +
8 files changed, 52 insertions(+)
diff --git a/include/net/net.h b/include/net/net.h
index b5ccfbb..330d285 100644
--- a/include/net/net.h
+++ b/include/net/net.h
@@ -54,6 +54,7 @@ typedef void (LinkStatusChanged)(NetClientState *);
typedef void (NetClientDestructor)(NetClientState *);
typedef RxFilterInfo *(QueryRxFilter)(NetClientState *);
typedef bool (HasUfo)(NetClientState *);
+typedef bool (HasUso)(NetClientState *);
typedef bool (HasVnetHdr)(NetClientState *);
typedef bool (HasVnetHdrLen)(NetClientState *, int);
typedef bool (GetUsingVnetHdr)(NetClientState *);
@@ -84,6 +85,7 @@ typedef struct NetClientInfo {
QueryRxFilter *query_rx_filter;
NetPoll *poll;
HasUfo *has_ufo;
+ HasUso *has_uso;
HasVnetHdr *has_vnet_hdr;
HasVnetHdrLen *has_vnet_hdr_len;
GetUsingVnetHdr *get_using_vnet_hdr;
@@ -187,6 +189,7 @@ void qemu_set_info_str(NetClientState *nc,
const char *fmt, ...) G_GNUC_PRINTF(2, 3);
void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]);
bool qemu_has_ufo(NetClientState *nc);
+bool qemu_has_uso(NetClientState *nc);
bool qemu_has_vnet_hdr(NetClientState *nc);
bool qemu_has_vnet_hdr_len(NetClientState *nc, int len);
bool qemu_get_using_vnet_hdr(NetClientState *nc);
diff --git a/net/net.c b/net/net.c
index 543e6de..b110e61 100644
--- a/net/net.c
+++ b/net/net.c
@@ -495,6 +495,15 @@ bool qemu_has_ufo(NetClientState *nc)
return nc->info->has_ufo(nc);
}
+bool qemu_has_uso(NetClientState *nc)
+{
+ if (!nc || !nc->info->has_uso) {
+ return false;
+ }
+
+ return nc->info->has_uso(nc);
+}
+
bool qemu_has_vnet_hdr(NetClientState *nc)
{
if (!nc || !nc->info->has_vnet_hdr) {
diff --git a/net/tap-bsd.c b/net/tap-bsd.c
index abd16a2..274ea7b 100644
--- a/net/tap-bsd.c
+++ b/net/tap-bsd.c
@@ -212,6 +212,11 @@ int tap_probe_has_ufo(int fd)
return 0;
}
+int tap_probe_has_uso(int fd)
+{
+ return 0;
+}
+
int tap_probe_vnet_hdr_len(int fd, int len)
{
return 0;
diff --git a/net/tap-linux.c b/net/tap-linux.c
index 30fcca1..c7e514e 100644
--- a/net/tap-linux.c
+++ b/net/tap-linux.c
@@ -173,6 +173,18 @@ int tap_probe_has_ufo(int fd)
return 1;
}
+int tap_probe_has_uso(int fd)
+{
+ unsigned offload;
+
+ offload = TUN_F_CSUM | TUN_F_USO4 | TUN_F_USO6;
+
+ if (ioctl(fd, TUNSETOFFLOAD, offload) < 0) {
+ return 0;
+ }
+ return 1;
+}
+
/* Verify that we can assign given length */
int tap_probe_vnet_hdr_len(int fd, int len)
{
diff --git a/net/tap-solaris.c b/net/tap-solaris.c
index a617a10..08b13af 100644
--- a/net/tap-solaris.c
+++ b/net/tap-solaris.c
@@ -216,6 +216,11 @@ int tap_probe_has_ufo(int fd)
return 0;
}
+int tap_probe_has_uso(int fd)
+{
+ return 0;
+}
+
int tap_probe_vnet_hdr_len(int fd, int len)
{
return 0;
diff --git a/net/tap-stub.c b/net/tap-stub.c
index ac8dfc0..4b24f61 100644
--- a/net/tap-stub.c
+++ b/net/tap-stub.c
@@ -47,6 +47,11 @@ int tap_probe_has_ufo(int fd)
return 0;
}
+int tap_probe_has_uso(int fd)
+{
+ return 0;
+}
+
int tap_probe_vnet_hdr_len(int fd, int len)
{
return 0;
diff --git a/net/tap.c b/net/tap.c
index 14ea4ef..bcea8d0 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -57,6 +57,7 @@ typedef struct TAPState {
bool write_poll;
bool using_vnet_hdr;
bool has_ufo;
+ bool has_uso;
bool enabled;
VHostNetState *vhost_net;
unsigned host_vnet_hdr_len;
@@ -237,6 +238,15 @@ static bool tap_has_ufo(NetClientState *nc)
return s->has_ufo;
}
+static bool tap_has_uso(NetClientState *nc)
+{
+ TAPState *s = DO_UPCAST(TAPState, nc, nc);
+
+ assert(nc->info->type == NET_CLIENT_DRIVER_TAP);
+
+ return s->has_uso;
+}
+
static bool tap_has_vnet_hdr(NetClientState *nc)
{
TAPState *s = DO_UPCAST(TAPState, nc, nc);
@@ -384,6 +394,7 @@ static NetClientInfo net_tap_info = {
.poll = tap_poll,
.cleanup = tap_cleanup,
.has_ufo = tap_has_ufo,
+ .has_uso = tap_has_uso,
.has_vnet_hdr = tap_has_vnet_hdr,
.has_vnet_hdr_len = tap_has_vnet_hdr_len,
.get_using_vnet_hdr = tap_get_using_vnet_hdr,
@@ -413,6 +424,7 @@ static TAPState *net_tap_fd_init(NetClientState *peer,
s->host_vnet_hdr_len = vnet_hdr ? sizeof(struct virtio_net_hdr) : 0;
s->using_vnet_hdr = false;
s->has_ufo = tap_probe_has_ufo(s->fd);
+ s->has_uso = tap_probe_has_uso(s->fd);
s->enabled = true;
tap_set_offload(&s->nc, 0, 0, 0, 0, 0, 0, 0);
/*
diff --git a/net/tap_int.h b/net/tap_int.h
index d8861d8..9a21756 100644
--- a/net/tap_int.h
+++ b/net/tap_int.h
@@ -37,6 +37,7 @@ void tap_set_sndbuf(int fd, const NetdevTapOptions *tap,
Error **errp);
int tap_probe_vnet_hdr(int fd, Error **errp);
int tap_probe_vnet_hdr_len(int fd, int len);
int tap_probe_has_ufo(int fd);
+int tap_probe_has_uso(int fd);
void tap_fd_set_offload(int fd, int csum, int tso4, int tso6, int ecn, int ufo,
int uso4, int uso6);
void tap_fd_set_vnet_hdr_len(int fd, int len);
--
2.7.4
