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author | Yuri Benditovich <yuri.benditovich@daynix.com> | 2023-08-01 01:31:46 +0300 |
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committer | Jason Wang <jasowang@redhat.com> | 2023-09-18 14:36:13 +0800 |
commit | f03e0cf63b97a2f98d3b642ee5e7b3bb4379b4b1 (patch) | |
tree | c79205f8ff2f632b9670b5f354fd3397f7713988 /net | |
parent | 2ab0ec31215e68f7af6b21b62e49141eb7c083e2 (diff) | |
download | qemu-f03e0cf63b97a2f98d3b642ee5e7b3bb4379b4b1.zip qemu-f03e0cf63b97a2f98d3b642ee5e7b3bb4379b4b1.tar.gz qemu-f03e0cf63b97a2f98d3b642ee5e7b3bb4379b4b1.tar.bz2 |
tap: Add check for USO features
Tap indicates support for USO features according to
capabilities of current kernel module.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Andrew Melnychecnko <andrew@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'net')
-rw-r--r-- | net/net.c | 9 | ||||
-rw-r--r-- | net/tap-bsd.c | 5 | ||||
-rw-r--r-- | net/tap-linux.c | 12 | ||||
-rw-r--r-- | net/tap-solaris.c | 5 | ||||
-rw-r--r-- | net/tap-stub.c | 5 | ||||
-rw-r--r-- | net/tap.c | 12 | ||||
-rw-r--r-- | net/tap_int.h | 1 |
7 files changed, 49 insertions, 0 deletions
@@ -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; @@ -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); |