+ }
+
+ if (!skb->l4_hash && !skb->sw_hash) {
+ struct flow_keys keys;
+
+ skb_flow_dissect_flow_keys(skb, &keys, FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL);
+ rxq = flow_hash_from_keys(&keys);
+ keys_basic = (struct flow_keys_basic) {
+ .control = keys.control,
+ .basic = keys.basic
+ };
+ } else {
+ skb_flow_dissect_flow_keys_basic(NULL, skb, &keys_basic, NULL, 0, 0, 0,
+ FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL);
+ rxq = skb->hash;
+ }
+ } else {
+ rxq = skb_get_hash(skb);
+ }
+
/* Check if we can use flow to select a queue */
- rxq = skb_get_hash(skb);
if (rxq) {
+ tun_vnet_hash_report(vnet_hash, skb, &keys_basic, rxq, tap_add_hash);
queue = rcu_dereference(tap->taps[rxq % numvtaps]);
goto out;
}
@@ -711,11 +762,12 @@ static ssize_t tap_put_user(struct tap_queue *q,
int total;
if (q->flags & IFF_VNET_HDR) {
- struct virtio_net_hdr vnet_hdr;
+ struct virtio_net_hdr_v1_hash vnet_hdr;
vnet_hdr_len = READ_ONCE(q->vnet_hdr_sz);
- ret = tun_vnet_hdr_from_skb(q->flags, NULL, skb, &vnet_hdr);
+ ret = tun_vnet_hdr_from_skb(vnet_hdr_len, q->flags, NULL, skb,
+ tap_find_hash, &vnet_hdr);
if (ret)
return ret;
@@ -992,6 +1044,16 @@ static long tap_ioctl(struct file *file, unsigned int cmd,
rtnl_unlock();
return ret;
+ case TUNGETVNETHASHCAP:
+ return tun_vnet_ioctl_gethashcap(argp);
+
+ case TUNSETVNETHASH:
+ rtnl_lock();
+ tap = rtnl_dereference(q->tap);
+ ret = tap ? tun_vnet_ioctl_sethash(&tap->vnet_hash, true, argp) : -EBADFD;
+ rtnl_unlock();
+ return ret;
+
case SIOCGIFHWADDR:
rtnl_lock();
tap = tap_get_tap_dev(q);
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index d8f4d3e996a7a81d1f8b04635054081671a14f07..520013df416e93d3a50b46be9b53ae9ab410eab4 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -209,6 +209,7 @@ struct tun_struct {
struct bpf_prog __rcu *xdp_prog;
struct tun_prog __rcu *steering_prog;
struct tun_prog __rcu *filter_prog;
+ struct tun_vnet_hash_container __rcu *vnet_hash;
struct ethtool_link_ksettings link_ksettings;
/* init args */
struct file *file;
@@ -451,20 +452,37 @@ static inline void tun_flow_save_rps_rxhash(struct tun_flow_entry *e, u32 hash)
e->rps_rxhash = hash;
}
+static struct virtio_net_hash *tun_add_hash(struct sk_buff *skb)
+{
+ return skb_ext_add(skb, SKB_EXT_TUN_VNET_HASH);
+}
+
+static const struct virtio_net_hash *tun_find_hash(const struct sk_buff *skb)
+{
+ return skb_ext_find(skb, SKB_EXT_TUN_VNET_HASH);
+}
+
/* We try to identify a flow through its rxhash. The reason that
* we do not check rxq no. is because some cards(e.g 82599), chooses
* the rxq based on the txq where the last packet of the flow comes. As
* the userspace application move between processors, we may get a
* different rxq no. here.
*/
-static u16 tun_automq_select_queue(struct tun_struct *tun, struct sk_buff *skb)
+static u16 tun_automq_select_queue(struct tun_struct *tun,
+ const struct tun_vnet_hash_container *vnet_hash,
+ struct sk_buff *skb)
{
+ struct flow_keys keys;
+ struct flow_keys_basic keys_basic;
struct tun_flow_entry *e;
u32 txq, numqueues;
numqueues = READ_ONCE(tun->numqueues);
- txq = __skb_get_hash_symmetric(skb);
+ memset(&keys, 0, sizeof(keys));
+ skb_flow_dissect(skb, &flow_keys_dissector_symmetric, &keys, 0);
+
+ txq = flow_hash_from_keys(&keys);
e = tun_flow_find(&tun->flows[tun_hashfn(txq)], txq);
if (e) {
tun_flow_save_rps_rxhash(e, txq);
@@ -473,6 +491,13 @@ static u16 tun_automq_select_queue(struct tun_struct *tun, struct sk_buff *skb)
txq = reciprocal_scale(txq, numqueues);
}
+ keys_basic = (struct flow_keys_basic) {
+ .control = keys.control,
+ .basic = keys.basic
+ };
+ tun_vnet_hash_report(vnet_hash, skb, &keys_basic, skb->l4_hash ? skb->hash : txq,
+ tun_add_hash);
+
return txq;
}
@@ -500,10 +525,17 @@ static u16 tun_select_queue(struct net_device *dev, struct sk_buff *skb,
u16 ret;
rcu_read_lock();
- if (rcu_dereference(tun->steering_prog))
+ if (rcu_dereference(tun->steering_prog)) {
ret = tun_ebpf_select_queue(tun, skb);
- else
- ret = tun_automq_select_queue(tun, skb);
+ } else {
+ struct tun_vnet_hash_container *vnet_hash = rcu_dereference(tun->vnet_hash);
+
+ if (vnet_hash && (vnet_hash->common.flags & TUN_VNET_HASH_RSS))
+ ret = tun_vnet_rss_select_queue(READ_ONCE(tun->numqueues), vnet_hash,
+ skb, tun_add_hash);
+ else
+ ret = tun_automq_select_queue(tun, vnet_hash, skb);
+ }
rcu_read_unlock();
return ret;
@@ -1987,7 +2019,7 @@ static ssize_t tun_put_user_xdp(struct tun_struct *tun,
ssize_t ret;
if (tun->flags & IFF_VNET_HDR) {
- struct virtio_net_hdr gso = { 0 };
+ struct virtio_net_hdr_v1_hash gso = { 0 };
vnet_hdr_sz = READ_ONCE(tun->vnet_hdr_sz);
ret = tun_vnet_hdr_put(vnet_hdr_sz, iter, &gso);
@@ -2040,9 +2072,10 @@ static ssize_t tun_put_user(struct tun_struct *tun,
}
if (vnet_hdr_sz) {
- struct virtio_net_hdr gso;
+ struct virtio_net_hdr_v1_hash gso;
- ret = tun_vnet_hdr_from_skb(tun->flags, tun->dev, skb, &gso);
+ ret = tun_vnet_hdr_from_skb(vnet_hdr_sz, tun->flags, tun->dev,
+ skb, tun_find_hash, &gso);
if (ret)
return ret;
@@ -2223,6 +2256,7 @@ static void tun_free_netdev(struct net_device *dev)
security_tun_dev_free_security(tun->security);
__tun_set_ebpf(tun, &tun->steering_prog, NULL);
__tun_set_ebpf(tun, &tun->filter_prog, NULL);
+ kfree_rcu_mightsleep(rcu_access_pointer(tun->vnet_hash));
}
static void tun_setup(struct net_device *dev)
@@ -2921,13 +2955,9 @@ static int tun_set_queue(struct file *file, struct ifreq *ifr)
}
static int tun_set_ebpf(struct tun_struct *tun, struct tun_prog __rcu **prog_p,
- void __user *data)
+ int fd)
{
struct bpf_prog *prog;
- int fd;
-
- if (copy_from_user(&fd, data, sizeof(fd)))
- return -EFAULT;
if (fd == -1) {
prog = NULL;
@@ -2993,7 +3023,9 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
int ifindex;
int sndbuf;
int ret;
+ int fd;
bool do_notify = false;
+ struct tun_vnet_hash_container *vnet_hash;
if (cmd == TUNSETIFF || cmd == TUNSETQUEUE ||
(_IOC_TYPE(cmd) == SOCK_IOC_TYPE && cmd != SIOCGSKNS)) {
@@ -3020,7 +3052,8 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
rtnl_lock();
tun = tun_get(tfile);
- if (cmd == TUNSETIFF) {
+ switch (cmd) {
+ case TUNSETIFF:
ret = -EEXIST;
if (tun)
goto unlock;
@@ -3035,8 +3068,8 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
if (copy_to_user(argp, &ifr, ifreq_len))
ret = -EFAULT;
goto unlock;
- }
- if (cmd == TUNSETIFINDEX) {
+
+ case TUNSETIFINDEX:
ret = -EPERM;
if (tun)
goto unlock;
@@ -3050,6 +3083,10 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
ret = 0;
tfile->ifindex = ifindex;
goto unlock;
+
+ case TUNGETVNETHASHCAP:
+ ret = tun_vnet_ioctl_gethashcap(argp);
+ goto unlock;
}
ret = -EBADFD;
@@ -3230,11 +3267,27 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
break;
case TUNSETSTEERINGEBPF:
- ret = tun_set_ebpf(tun, &tun->steering_prog, argp);
+ if (get_user(fd, (int __user *)argp)) {
+ ret = -EFAULT;
+ break;
+ }
+
+ vnet_hash = rtnl_dereference(tun->vnet_hash);
+ if (fd != -1 && vnet_hash && (vnet_hash->common.flags & TUN_VNET_HASH_RSS)) {
+ ret = -EBUSY;
+ break;
+ }
+
+ ret = tun_set_ebpf(tun, &tun->steering_prog, fd);
break;
case TUNSETFILTEREBPF:
- ret = tun_set_ebpf(tun, &tun->filter_prog, argp);
+ if (get_user(fd, (int __user *)argp)) {
+ ret = -EFAULT;
+ break;
+ }
+
+ ret = tun_set_ebpf(tun, &tun->filter_prog, fd);
break;
case TUNSETCARRIER:
@@ -3252,8 +3305,15 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
ret = open_related_ns(&net->ns, get_net_ns);
break;
+ case TUNSETVNETHASH:
+ ret = tun_vnet_ioctl_sethash(&tun->vnet_hash,
+ !rtnl_dereference(tun->steering_prog),
+ argp);
+ break;
+
default:
- ret = tun_vnet_ioctl(&tun->vnet_hdr_sz, &tun->flags, cmd, argp);
+ ret = tun_vnet_ioctl(&tun->vnet_hdr_sz, &tun->flags,
+ cmd, argp);
break;
}
diff --git a/drivers/net/tun_vnet.h b/drivers/net/tun_vnet.h
index 58b9ac7a5fc4084c789fe94fe36b5f8631bf1fa4..8e7d51fb0b4742cef56e7c5ad778b156cc654bed 100644
--- a/drivers/net/tun_vnet.h
+++ b/drivers/net/tun_vnet.h
@@ -6,6 +6,16 @@
#define TUN_VNET_LE 0x80000000
#define TUN_VNET_BE 0x40000000
+typedef struct virtio_net_hash *(*tun_vnet_hash_add)(struct sk_buff *);
+typedef const struct virtio_net_hash *(*tun_vnet_hash_find)(const struct sk_buff *);
+
+struct tun_vnet_hash_container {
+ struct tun_vnet_hash common;
+ struct tun_vnet_hash_rss rss;
+ u32 rss_key[VIRTIO_NET_RSS_MAX_KEY_SIZE];
+ u16 rss_indirection_table[];
+};
+
static inline bool tun_vnet_legacy_is_little_endian(unsigned int flags)
{
bool be = IS_ENABLED(CONFIG_TUN_VNET_CROSS_LE) &&
@@ -107,6 +117,123 @@ static inline long tun_vnet_ioctl(int *vnet_hdr_sz, unsigned int *flags,
}
}
+static inline long tun_vnet_ioctl_gethashcap(void __user *argp)
+{
+ static const struct tun_vnet_hash cap = {
+ .flags = TUN_VNET_HASH_REPORT | TUN_VNET_HASH_RSS,
+ .types = VIRTIO_NET_SUPPORTED_HASH_TYPES
+ };
+
+ return copy_to_user(argp, &cap, sizeof(cap)) ? -EFAULT : 0;
+}
+
+static inline long tun_vnet_ioctl_sethash(struct tun_vnet_hash_container __rcu **hashp,
+ bool can_rss, void __user *argp)
+{
+ struct tun_vnet_hash hash_buf;
+ struct tun_vnet_hash_container *hash;
+
+ if (copy_from_user(&hash_buf, argp, sizeof(hash_buf)))
+ return -EFAULT;
+ argp = (struct tun_vnet_hash __user *)argp + 1;
+
+ if (hash_buf.flags & TUN_VNET_HASH_RSS) {
+ struct tun_vnet_hash_rss rss;
+ size_t indirection_table_size;
+ size_t key_size;
+ size_t size;
+
+ if (!can_rss)
+ return -EBUSY;
+
+ if (copy_from_user(&rss, argp, sizeof(rss)))
+ return -EFAULT;
+ argp = (struct tun_vnet_hash_rss __user *)argp + 1;
+
+ indirection_table_size = ((size_t)rss.indirection_table_mask + 1) * 2;
+ key_size = virtio_net_hash_key_length(hash_buf.types);
+ size = struct_size(hash, rss_indirection_table,
+ (size_t)rss.indirection_table_mask + 1);
+
+ hash = kmalloc(size, GFP_KERNEL);
+ if (!hash)
+ return -ENOMEM;
+
+ if (copy_from_user(hash->rss_indirection_table,
+ argp, indirection_table_size)) {
+ kfree(hash);
+ return -EFAULT;
+ }
+ argp = (u16 __user *)argp + rss.indirection_table_mask + 1;
+
+ if (copy_from_user(hash->rss_key, argp, key_size)) {
+ kfree(hash);
+ return -EFAULT;
+ }
+
+ virtio_net_toeplitz_convert_key(hash->rss_key, key_size);
+ hash->rss = rss;
+ } else {
+ hash = kmalloc(sizeof(hash->common), GFP_KERNEL);
+ if (!hash)
+ return -ENOMEM;
+ }
+
+ hash->common = hash_buf;
+ kfree_rcu_mightsleep(rcu_replace_pointer_rtnl(*hashp, hash));
+ return 0;
+}
+
+static void tun_vnet_hash_report(const struct tun_vnet_hash_container *hash,
+ struct sk_buff *skb,
+ const struct flow_keys_basic *keys,
+ u32 value,
+ tun_vnet_hash_add vnet_hash_add)
+{
+ struct virtio_net_hash *report;
+
+ if (!hash || !(hash->common.flags & TUN_VNET_HASH_REPORT))
+ return;
+
+ report = vnet_hash_add(skb);
+ if (!report)
+ return;
+
+ *report = (struct virtio_net_hash) {
+ .report = virtio_net_hash_report(hash->common.types, keys),
+ .value = value
+ };
+}
+
+static u16 tun_vnet_rss_select_queue(u32 numqueues,
+ const struct tun_vnet_hash_container *hash,
+ struct sk_buff *skb,
+ tun_vnet_hash_add vnet_hash_add)
+{
+ struct virtio_net_hash *report;
+ struct virtio_net_hash ret;
+ u16 txq, index;
+
+ if (!numqueues)
+ return 0;
+
+ virtio_net_hash_rss(skb, hash->common.types, hash->rss_key, &ret);
+
+ if (!ret.report)
+ return hash->rss.unclassified_queue % numqueues;
+
+ if (hash->common.flags & TUN_VNET_HASH_REPORT) {
+ report = vnet_hash_add(skb);
+ if (report)
+ *report = ret;
+ }
+
+ index = ret.value & hash->rss.indirection_table_mask;
+ txq = READ_ONCE(hash->rss_indirection_table[index]);
+
+ return txq % numqueues;
+}
+
static inline int tun_vnet_hdr_get(int sz, unsigned int flags,
struct iov_iter *from,
struct virtio_net_hdr *hdr)
@@ -135,15 +262,17 @@ static inline int tun_vnet_hdr_get(int sz, unsigned int flags,
}
static inline int tun_vnet_hdr_put(int sz, struct iov_iter *iter,
- const struct virtio_net_hdr *hdr)
+ const struct virtio_net_hdr_v1_hash *hdr)
{
+ int content_sz = MIN(sizeof(*hdr), sz);
+
if (unlikely(iov_iter_count(iter) < sz))
return -EINVAL;
- if (unlikely(copy_to_iter(hdr, sizeof(*hdr), iter) != sizeof(*hdr)))
+ if (unlikely(copy_to_iter(hdr, content_sz, iter) != content_sz))
return -EFAULT;
- if (iov_iter_zero(sz - sizeof(*hdr), iter) != sz - sizeof(*hdr))
+ if (iov_iter_zero(sz - content_sz, iter) != sz - content_sz)
return -EFAULT;
return 0;
@@ -155,26 +284,38 @@ static inline int tun_vnet_hdr_to_skb(unsigned int flags, struct sk_buff *skb,
return virtio_net_hdr_to_skb(skb, hdr, tun_vnet_is_little_endian(flags));
}
-static inline int tun_vnet_hdr_from_skb(unsigned int flags,
+static inline int tun_vnet_hdr_from_skb(int sz, unsigned int flags,
const struct net_device *dev,
const struct sk_buff *skb,
- struct virtio_net_hdr *hdr)
+ tun_vnet_hash_find vnet_hash_find,
+ struct virtio_net_hdr_v1_hash *hdr)
{
int vlan_hlen = skb_vlan_tag_present(skb) ? VLAN_HLEN : 0;
+ const struct virtio_net_hash *report = sz < sizeof(struct virtio_net_hdr_v1_hash) ?
+ NULL : vnet_hash_find(skb);
+
+ *hdr = (struct virtio_net_hdr_v1_hash) {
+ .hash_report = VIRTIO_NET_HASH_REPORT_NONE
+ };
+
+ if (report) {
+ hdr->hash_value = cpu_to_le32(report->value);
+ hdr->hash_report = cpu_to_le16(report->report);
+ }
- if (virtio_net_hdr_from_skb(skb, hdr,
+ if (virtio_net_hdr_from_skb(skb, (struct virtio_net_hdr *)hdr,
tun_vnet_is_little_endian(flags), true,
vlan_hlen)) {
struct skb_shared_info *sinfo = skb_shinfo(skb);
if (net_ratelimit()) {
netdev_err(dev, "unexpected GSO type: 0x%x, gso_size %d, hdr_len %d\n",
- sinfo->gso_type, tun_vnet16_to_cpu(flags, hdr->gso_size),
- tun_vnet16_to_cpu(flags, hdr->hdr_len));
+ sinfo->gso_type, tun_vnet16_to_cpu(flags, hdr->hdr.gso_size),
+ tun_vnet16_to_cpu(flags, hdr->hdr.hdr_len));
print_hex_dump(KERN_ERR, "tun: ",
DUMP_PREFIX_NONE,
16, 1, skb->head,
- min(tun_vnet16_to_cpu(flags, hdr->hdr_len), 64), true);
+ min(tun_vnet16_to_cpu(flags, hdr->hdr.hdr_len), 64), true);
}
WARN_ON_ONCE(1);
return -EINVAL;
diff --git a/include/linux/if_tap.h b/include/linux/if_tap.h
index 553552fa635c3e1e53d1a63c203d32e4c4fd5a4f..7334c46a3f101675a0d4e5a036987cfe18842f9f 100644
--- a/include/linux/if_tap.h
+++ b/include/linux/if_tap.h
@@ -31,6 +31,7 @@ static inline struct ptr_ring *tap_get_ptr_ring(struct file *f)
#define MAX_TAP_QUEUES 256
struct tap_queue;
+struct tun_vnet_hash_container;
struct tap_dev {
struct net_device *dev;
@@ -43,6 +44,7 @@ struct tap_dev {
int numqueues;
netdev_features_t tap_features;
int minor;
+ struct tun_vnet_hash_container __rcu *vnet_hash;
void (*update_features)(struct tap_dev *tap, netdev_features_t features);
void (*count_tx_dropped)(struct tap_dev *tap);
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index bb2b751d274acff931281a72e8b4b0c699b4e8af..cdd793f1c360ad5f63fcc4cbf67d845f5e2ccf6f 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -4842,6 +4842,9 @@ enum skb_ext_id {
#endif
#if IS_ENABLED(CONFIG_MCTP_FLOWS)
SKB_EXT_MCTP,
+#endif
+#if IS_ENABLED(CONFIG_TUN)
+ SKB_EXT_TUN_VNET_HASH,
#endif
SKB_EXT_NUM, /* must be last */
};
diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index 287cdc81c9390c289a30545aa7ed23d81c3329d3..4887f97500a870c7ef3c96a5837b2d0a5a225040 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -62,6 +62,42 @@
#define TUNSETCARRIER _IOW('T', 226, int)
#define TUNGETDEVNETNS _IO('T', 227)
+/**
+ * define TUNGETVNETHASHCAP - ioctl to get virtio_net hashing capability.
+ *
+ * The argument is a pointer to &struct tun_vnet_hash which will store the
+ * maximal virtio_net hashing configuration.
+ */
+#define TUNGETVNETHASHCAP _IOR('T', 228, struct tun_vnet_hash)
+
+/**
+ * define TUNSETVNETHASH - ioctl to configure virtio_net hashing
+ *
+ * The argument is a pointer to &struct tun_vnet_hash.
+ *
+ * The argument is a pointer to the compound of the following in order if
+ * %TUN_VNET_HASH_RSS is set:
+ *
+ * 1. &struct tun_vnet_hash
+ * 2. &struct tun_vnet_hash_rss
+ * 3. Indirection table
+ * 4. Key
+ *
+ * The %TUN_VNET_HASH_REPORT flag set with this ioctl will be effective only
+ * after calling the %TUNSETVNETHDRSZ ioctl with a number greater than or equal
+ * to the size of &struct virtio_net_hdr_v1_hash.
+ *
+ * The members added to the legacy header by %TUN_VNET_HASH_REPORT flag will
+ * always be little-endian.
+ *
+ * This ioctl results in %EBADFD if the underlying device is deleted. It affects
+ * all queues attached to the same device.
+ *
+ * This ioctl currently has no effect on XDP packets and packets with
+ * queue_mapping set by TC.
+ */
+#define TUNSETVNETHASH _IOW('T', 229, struct tun_vnet_hash)
+
/* TUNSETIFF ifr flags */
#define IFF_TUN 0x0001
#define IFF_TAP 0x0002
@@ -115,4 +151,43 @@ struct tun_filter {
__u8 addr[][ETH_ALEN];
};
+/**
+ * define TUN_VNET_HASH_REPORT - Request virtio_net hash reporting for vhost
+ */
+#define TUN_VNET_HASH_REPORT 0x0001
+
+/**
+ * define TUN_VNET_HASH_RSS - Request virtio_net RSS
+ *
+ * This is mutually exclusive with eBPF steering program.
+ */
+#define TUN_VNET_HASH_RSS 0x0002
+
+/**
+ * struct tun_vnet_hash - virtio_net hashing configuration
+ * @flags:
+ * Bitmask consists of %TUN_VNET_HASH_REPORT and %TUN_VNET_HASH_RSS
+ * @pad:
+ * Should be filled with zero before passing to %TUNSETVNETHASH
+ * @types:
+ * Bitmask of allowed hash types
+ */
+struct tun_vnet_hash {
+ __u16 flags;
+ __u8 pad[2];
+ __u32 types;
+};
+
+/**
+ * struct tun_vnet_hash_rss - virtio_net RSS configuration
+ * @indirection_table_mask:
+ * Bitmask to be applied to the indirection table index
+ * @unclassified_queue:
+ * The index of the queue to place unclassified packets in
+ */
+struct tun_vnet_hash_rss {
+ __u16 indirection_table_mask;
+ __u16 unclassified_queue;
+};
+
#endif /* _UAPI__IF_TUN_H */
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 7b03b64fdcb276f68ce881d1d8da8e4c6b897efc..aa2a091b649f0c9d6e0196f34f345ba78b5498fb 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -64,6 +64,7 @@
#include <linux/mpls.h>
#include <linux/kcov.h>
#include <linux/iov_iter.h>
+#include <linux/virtio_net.h>
#include <net/protocol.h>
#include <net/dst.h>
@@ -4969,6 +4970,9 @@ static const u8 skb_ext_type_len[] = {
#if IS_ENABLED(CONFIG_MCTP_FLOWS)
[SKB_EXT_MCTP] = SKB_EXT_CHUNKSIZEOF(struct mctp_flow),
#endif
+#if IS_ENABLED(CONFIG_TUN)
+ [SKB_EXT_TUN_VNET_HASH] = SKB_EXT_CHUNKSIZEOF(struct virtio_net_hash),
+#endif
};
static __always_inline unsigned int skb_ext_total_length(void)
--
2.48.1
