diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/rocker/rocker.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/ef10.c | 16 | ||||
| -rw-r--r-- | drivers/net/geneve.c | 41 | ||||
| -rw-r--r-- | drivers/net/team/team.c | 9 | ||||
| -rw-r--r-- | drivers/net/tun.c | 6 | ||||
| -rw-r--r-- | drivers/net/vxlan.c | 60 |
6 files changed, 95 insertions, 41 deletions
diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c index 2b34622a4bfe..3920c3eb6006 100644 --- a/drivers/net/ethernet/rocker/rocker.c +++ b/drivers/net/ethernet/rocker/rocker.c @@ -4475,7 +4475,7 @@ static int rocker_port_obj_add(struct net_device *dev, fib4 = SWITCHDEV_OBJ_IPV4_FIB(obj); err = rocker_port_fib_ipv4(rocker_port, trans, htonl(fib4->dst), fib4->dst_len, - &fib4->fi, fib4->tb_id, 0); + fib4->fi, fib4->tb_id, 0); break; case SWITCHDEV_OBJ_ID_PORT_FDB: err = rocker_port_fdb_add(rocker_port, trans, @@ -4547,7 +4547,7 @@ static int rocker_port_obj_del(struct net_device *dev, fib4 = SWITCHDEV_OBJ_IPV4_FIB(obj); err = rocker_port_fib_ipv4(rocker_port, NULL, htonl(fib4->dst), fib4->dst_len, - &fib4->fi, fib4->tb_id, + fib4->fi, fib4->tb_id, ROCKER_OP_FLAG_REMOVE); break; case SWITCHDEV_OBJ_ID_PORT_FDB: diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index e6a084a6be12..cbe9a330117a 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -619,6 +619,17 @@ fail: return rc; } +static void efx_ef10_forget_old_piobufs(struct efx_nic *efx) +{ + struct efx_channel *channel; + struct efx_tx_queue *tx_queue; + + /* All our existing PIO buffers went away */ + efx_for_each_channel(channel, efx) + efx_for_each_channel_tx_queue(tx_queue, channel) + tx_queue->piobuf = NULL; +} + #else /* !EFX_USE_PIO */ static int efx_ef10_alloc_piobufs(struct efx_nic *efx, unsigned int n) @@ -635,6 +646,10 @@ static void efx_ef10_free_piobufs(struct efx_nic *efx) { } +static void efx_ef10_forget_old_piobufs(struct efx_nic *efx) +{ +} + #endif /* EFX_USE_PIO */ static void efx_ef10_remove(struct efx_nic *efx) @@ -1018,6 +1033,7 @@ static void efx_ef10_reset_mc_allocations(struct efx_nic *efx) nic_data->must_realloc_vis = true; nic_data->must_restore_filters = true; nic_data->must_restore_piobufs = true; + efx_ef10_forget_old_piobufs(efx); nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID; /* Driver-created vswitches and vports must be re-created */ diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index 58efdec12f30..69e31e2a68fc 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -310,15 +310,15 @@ static int geneve_udp_encap_recv(struct sock *sk, struct sk_buff *skb) /* Need Geneve and inner Ethernet header to be present */ if (unlikely(!pskb_may_pull(skb, GENEVE_BASE_HLEN))) - goto error; + goto drop; /* Return packets with reserved bits set */ geneveh = geneve_hdr(skb); if (unlikely(geneveh->ver != GENEVE_VER)) - goto error; + goto drop; if (unlikely(geneveh->proto_type != htons(ETH_P_TEB))) - goto error; + goto drop; opts_len = geneveh->opt_len * 4; if (iptunnel_pull_header(skb, GENEVE_BASE_HLEN + opts_len, @@ -336,10 +336,6 @@ drop: /* Consume bad packet */ kfree_skb(skb); return 0; - -error: - /* Let the UDP layer deal with the skb */ - return 1; } static struct socket *geneve_create_sock(struct net *net, bool ipv6, @@ -998,6 +994,17 @@ static netdev_tx_t geneve_xmit(struct sk_buff *skb, struct net_device *dev) return geneve_xmit_skb(skb, dev, info); } +static int geneve_change_mtu(struct net_device *dev, int new_mtu) +{ + /* GENEVE overhead is not fixed, so we can't enforce a more + * precise max MTU. + */ + if (new_mtu < 68 || new_mtu > IP_MAX_MTU) + return -EINVAL; + dev->mtu = new_mtu; + return 0; +} + static int geneve_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb) { struct ip_tunnel_info *info = skb_tunnel_info(skb); @@ -1042,7 +1049,7 @@ static const struct net_device_ops geneve_netdev_ops = { .ndo_stop = geneve_stop, .ndo_start_xmit = geneve_xmit, .ndo_get_stats64 = ip_tunnel_get_stats64, - .ndo_change_mtu = eth_change_mtu, + .ndo_change_mtu = geneve_change_mtu, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = eth_mac_addr, .ndo_fill_metadata_dst = geneve_fill_metadata_dst, @@ -1349,11 +1356,21 @@ struct net_device *geneve_dev_create_fb(struct net *net, const char *name, err = geneve_configure(net, dev, &geneve_remote_unspec, 0, 0, 0, htons(dst_port), true); - if (err) { - free_netdev(dev); - return ERR_PTR(err); - } + if (err) + goto err; + + /* openvswitch users expect packet sizes to be unrestricted, + * so set the largest MTU we can. + */ + err = geneve_change_mtu(dev, IP_MAX_MTU); + if (err) + goto err; + return dev; + + err: + free_netdev(dev); + return ERR_PTR(err); } EXPORT_SYMBOL_GPL(geneve_dev_create_fb); diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 59fefca74263..a5f392ae30d5 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -969,7 +969,7 @@ static void team_port_disable(struct team *team, NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ NETIF_F_HIGHDMA | NETIF_F_LRO) -static void __team_compute_features(struct team *team) +static void ___team_compute_features(struct team *team) { struct team_port *port; u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL; @@ -993,15 +993,20 @@ static void __team_compute_features(struct team *team) team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM)) team->dev->priv_flags |= IFF_XMIT_DST_RELEASE; +} +static void __team_compute_features(struct team *team) +{ + ___team_compute_features(team); netdev_change_features(team->dev); } static void team_compute_features(struct team *team) { mutex_lock(&team->lock); - __team_compute_features(team); + ___team_compute_features(team); mutex_unlock(&team->lock); + netdev_change_features(team->dev); } static int team_port_enter(struct team *team, struct team_port *port) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 2d186bd66d43..111b972e3053 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -567,11 +567,13 @@ static void tun_detach_all(struct net_device *dev) for (i = 0; i < n; i++) { tfile = rtnl_dereference(tun->tfiles[i]); BUG_ON(!tfile); + tfile->socket.sk->sk_shutdown = RCV_SHUTDOWN; tfile->socket.sk->sk_data_ready(tfile->socket.sk); RCU_INIT_POINTER(tfile->tun, NULL); --tun->numqueues; } list_for_each_entry(tfile, &tun->disabled, next) { + tfile->socket.sk->sk_shutdown = RCV_SHUTDOWN; tfile->socket.sk->sk_data_ready(tfile->socket.sk); RCU_INIT_POINTER(tfile->tun, NULL); } @@ -627,6 +629,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file, bool skip_filte goto out; } tfile->queue_index = tun->numqueues; + tfile->socket.sk->sk_shutdown &= ~RCV_SHUTDOWN; rcu_assign_pointer(tfile->tun, tun); rcu_assign_pointer(tun->tfiles[tun->numqueues], tfile); tun->numqueues++; @@ -1408,9 +1411,6 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile, if (!iov_iter_count(to)) return 0; - if (tun->dev->reg_state != NETREG_REGISTERED) - return -EIO; - /* Read frames from queue */ skb = __skb_recv_datagram(tfile->socket.sk, noblock ? MSG_DONTWAIT : 0, &peeked, &off, &err); diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 3c0df70e2f53..003780901628 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1254,7 +1254,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb) /* Need Vxlan and inner Ethernet header to be present */ if (!pskb_may_pull(skb, VXLAN_HLEN)) - goto error; + goto drop; vxh = (struct vxlanhdr *)(udp_hdr(skb) + 1); flags = ntohl(vxh->vx_flags); @@ -1344,13 +1344,7 @@ drop: bad_flags: netdev_dbg(skb->dev, "invalid vxlan flags=%#x vni=%#x\n", ntohl(vxh->vx_flags), ntohl(vxh->vx_vni)); - -error: - if (tun_dst) - dst_release((struct dst_entry *)tun_dst); - - /* Return non vxlan pkt */ - return 1; + goto drop; } static int arp_reduce(struct net_device *dev, struct sk_buff *skb) @@ -2370,29 +2364,43 @@ static void vxlan_set_multicast_list(struct net_device *dev) { } -static int vxlan_change_mtu(struct net_device *dev, int new_mtu) +static int __vxlan_change_mtu(struct net_device *dev, + struct net_device *lowerdev, + struct vxlan_rdst *dst, int new_mtu, bool strict) { - struct vxlan_dev *vxlan = netdev_priv(dev); - struct vxlan_rdst *dst = &vxlan->default_dst; - struct net_device *lowerdev; - int max_mtu; + int max_mtu = IP_MAX_MTU; - lowerdev = __dev_get_by_index(vxlan->net, dst->remote_ifindex); - if (lowerdev == NULL) - return eth_change_mtu(dev, new_mtu); + if (lowerdev) + max_mtu = lowerdev->mtu; if (dst->remote_ip.sa.sa_family == AF_INET6) - max_mtu = lowerdev->mtu - VXLAN6_HEADROOM; + max_mtu -= VXLAN6_HEADROOM; else - max_mtu = lowerdev->mtu - VXLAN_HEADROOM; + max_mtu -= VXLAN_HEADROOM; - if (new_mtu < 68 || new_mtu > max_mtu) + if (new_mtu < 68) return -EINVAL; + if (new_mtu > max_mtu) { + if (strict) + return -EINVAL; + + new_mtu = max_mtu; + } + dev->mtu = new_mtu; return 0; } +static int vxlan_change_mtu(struct net_device *dev, int new_mtu) +{ + struct vxlan_dev *vxlan = netdev_priv(dev); + struct vxlan_rdst *dst = &vxlan->default_dst; + struct net_device *lowerdev = __dev_get_by_index(vxlan->net, + dst->remote_ifindex); + return __vxlan_change_mtu(dev, lowerdev, dst, new_mtu, true); +} + static int egress_ipv4_tun_info(struct net_device *dev, struct sk_buff *skb, struct ip_tunnel_info *info, __be16 sport, __be16 dport) @@ -2768,6 +2776,7 @@ static int vxlan_dev_configure(struct net *src_net, struct net_device *dev, int err; bool use_ipv6 = false; __be16 default_port = vxlan->cfg.dst_port; + struct net_device *lowerdev = NULL; vxlan->net = src_net; @@ -2788,9 +2797,7 @@ static int vxlan_dev_configure(struct net *src_net, struct net_device *dev, } if (conf->remote_ifindex) { - struct net_device *lowerdev - = __dev_get_by_index(src_net, conf->remote_ifindex); - + lowerdev = __dev_get_by_index(src_net, conf->remote_ifindex); dst->remote_ifindex = conf->remote_ifindex; if (!lowerdev) { @@ -2814,6 +2821,12 @@ static int vxlan_dev_configure(struct net *src_net, struct net_device *dev, needed_headroom = lowerdev->hard_header_len; } + if (conf->mtu) { + err = __vxlan_change_mtu(dev, lowerdev, dst, conf->mtu, false); + if (err) + return err; + } + if (use_ipv6 || conf->flags & VXLAN_F_COLLECT_METADATA) needed_headroom += VXLAN6_HEADROOM; else @@ -2991,6 +3004,9 @@ static int vxlan_newlink(struct net *src_net, struct net_device *dev, if (data[IFLA_VXLAN_REMCSUM_NOPARTIAL]) conf.flags |= VXLAN_F_REMCSUM_NOPARTIAL; + if (tb[IFLA_MTU]) + conf.mtu = nla_get_u32(tb[IFLA_MTU]); + err = vxlan_dev_configure(src_net, dev, &conf); switch (err) { case -ENODEV: |