1 files changed, 31 insertions, 212 deletions

diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index be737539f34d..f247f5bff88d 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -65,179 +65,6 @@ static int vlan_dev_rebuild_header(struct sk_buff *skb)
         return 0;
 }
 
-static inline struct sk_buff *vlan_check_reorder_header(struct sk_buff *skb)
-{
-        if (vlan_dev_info(skb->dev)->flags & VLAN_FLAG_REORDER_HDR) {
-                if (skb_cow(skb, skb_headroom(skb)) < 0)
-                        skb = NULL;
-                if (skb) {
-                        /* Lifted from Gleb's VLAN code... */
-                        memmove(skb->data - ETH_HLEN,
-                                skb->data - VLAN_ETH_HLEN, 12);
-                        skb->mac_header += VLAN_HLEN;
-                }
-        }
-
-        return skb;
-}
-
-static inline void vlan_set_encap_proto(struct sk_buff *skb,
-                struct vlan_hdr *vhdr)
-{
-        __be16 proto;
-        unsigned char *rawp;
-
-        /*
-         * Was a VLAN packet, grab the encapsulated protocol, which the layer
-         * three protocols care about.
-         */
-
-        proto = vhdr->h_vlan_encapsulated_proto;
-        if (ntohs(proto) >= 1536) {
-                skb->protocol = proto;
-                return;
-        }
-
-        rawp = skb->data;
-        if (*(unsigned short *)rawp == 0xFFFF)
-                /*
-                 * This is a magic hack to spot IPX packets. Older Novell
-                 * breaks the protocol design and runs IPX over 802.3 without
-                 * an 802.2 LLC layer. We look for FFFF which isn't a used
-                 * 802.2 SSAP/DSAP. This won't work for fault tolerant netware
-                 * but does for the rest.
-                 */
-                skb->protocol = htons(ETH_P_802_3);
-        else
-                /*
-                 * Real 802.2 LLC
-                 */
-                skb->protocol = htons(ETH_P_802_2);
-}
-
-/*
- *      Determine the packet's protocol ID. The rule here is that we
- *      assume 802.3 if the type field is short enough to be a length.
- *      This is normal practice and works for any 'now in use' protocol.
- *
- *  Also, at this point we assume that we ARE dealing exclusively with
- *  VLAN packets, or packets that should be made into VLAN packets based
- *  on a default VLAN ID.
- *
- *  NOTE:  Should be similar to ethernet/eth.c.
- *
- *  SANITY NOTE:  This method is called when a packet is moving up the stack
- *                towards userland.  To get here, it would have already passed
- *                through the ethernet/eth.c eth_type_trans() method.
- *  SANITY NOTE 2: We are referencing to the VLAN_HDR frields, which MAY be
- *                 stored UNALIGNED in the memory.  RISC systems don't like
- *                 such cases very much...
- *  SANITY NOTE 2a: According to Dave Miller & Alexey, it will always be
- *                  aligned, so there doesn't need to be any of the unaligned
- *                  stuff.  It has been commented out now...  --Ben
- *
- */
-int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
-                  struct packet_type *ptype, struct net_device *orig_dev)
-{
-        struct vlan_hdr *vhdr;
-        struct vlan_pcpu_stats *rx_stats;
-        struct net_device *vlan_dev;
-        u16 vlan_id;
-        u16 vlan_tci;
-
-        skb = skb_share_check(skb, GFP_ATOMIC);
-        if (skb == NULL)
-                goto err_free;
-
-        if (unlikely(!pskb_may_pull(skb, VLAN_HLEN)))
-                goto err_free;
-
-        vhdr = (struct vlan_hdr *)skb->data;
-        vlan_tci = ntohs(vhdr->h_vlan_TCI);
-        vlan_id = vlan_tci & VLAN_VID_MASK;
-
-        rcu_read_lock();
-        vlan_dev = vlan_find_dev(dev, vlan_id);
-
-        /* If the VLAN device is defined, we use it.
-         * If not, and the VID is 0, it is a 802.1p packet (not
-         * really a VLAN), so we will just netif_rx it later to the
-         * original interface, but with the skb->proto set to the
-         * wrapped proto: we do nothing here.
-         */
-
-        if (!vlan_dev) {
-                if (vlan_id) {
-                        pr_debug("%s: ERROR: No net_device for VID: %u on dev: %s\n",
-                                 __func__, vlan_id, dev->name);
-                        goto err_unlock;
-                }
-                rx_stats = NULL;
-        } else {
-                skb->dev = vlan_dev;
-
-                rx_stats = this_cpu_ptr(vlan_dev_info(skb->dev)->vlan_pcpu_stats);
-
-                u64_stats_update_begin(&rx_stats->syncp);
-                rx_stats->rx_packets++;
-                rx_stats->rx_bytes += skb->len;
-
-                skb->priority = vlan_get_ingress_priority(skb->dev, vlan_tci);
-
-                pr_debug("%s: priority: %u for TCI: %hu\n",
-                         __func__, skb->priority, vlan_tci);
-
-                switch (skb->pkt_type) {
-                case PACKET_BROADCAST:
-                        /* Yeah, stats collect these together.. */
-                        /* stats->broadcast ++; // no such counter :-( */
-                        break;
-
-                case PACKET_MULTICAST:
-                        rx_stats->rx_multicast++;
-                        break;
-
-                case PACKET_OTHERHOST:
-                        /* Our lower layer thinks this is not local, let's make
-                         * sure.
-                         * This allows the VLAN to have a different MAC than the
-                         * underlying device, and still route correctly.
-                         */
-                        if (!compare_ether_addr(eth_hdr(skb)->h_dest,
-                                                skb->dev->dev_addr))
-                                skb->pkt_type = PACKET_HOST;
-                        break;
-                default:
-                        break;
-                }
-                u64_stats_update_end(&rx_stats->syncp);
-        }
-
-        skb_pull_rcsum(skb, VLAN_HLEN);
-        vlan_set_encap_proto(skb, vhdr);
-
-        if (vlan_dev) {
-                skb = vlan_check_reorder_header(skb);
-                if (!skb) {
-                        rx_stats->rx_errors++;
-                        goto err_unlock;
-                }
-        }
-
-        netif_rx(skb);
-
-        rcu_read_unlock();
-        return NET_RX_SUCCESS;
-
-err_unlock:
-        rcu_read_unlock();
-err_free:
-        atomic_long_inc(&dev->rx_dropped);
-        kfree_skb(skb);
-        return NET_RX_DROP;
-}
-
 static inline u16
 vlan_dev_get_egress_qos_mask(struct net_device *dev, struct sk_buff *skb)
 {
@@ -487,9 +314,6 @@ static int vlan_dev_stop(struct net_device *dev)
         struct vlan_dev_info *vlan = vlan_dev_info(dev);
         struct net_device *real_dev = vlan->real_dev;
 
-        if (vlan->flags & VLAN_FLAG_GVRP)
-                vlan_gvrp_request_leave(dev);
-
         dev_mc_unsync(real_dev, dev);
         dev_uc_unsync(real_dev, dev);
         if (dev->flags & IFF_ALLMULTI)
@@ -625,6 +449,19 @@ static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type)
                 rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type);
         return rc;
 }
+
+static int vlan_dev_fcoe_ddp_target(struct net_device *dev, u16 xid,
+                                    struct scatterlist *sgl, unsigned int sgc)
+{
+        struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
+        const struct net_device_ops *ops = real_dev->netdev_ops;
+        int rc = 0;
+
+        if (ops->ndo_fcoe_ddp_target)
+                rc = ops->ndo_fcoe_ddp_target(real_dev, xid, sgl, sgc);
+
+        return rc;
+}
 #endif
 
 static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
@@ -691,8 +528,8 @@ static int vlan_dev_init(struct net_device *dev)
                                           (1<<__LINK_STATE_DORMANT))) |
                       (1<<__LINK_STATE_PRESENT);
 
-        dev->features |= real_dev->features & real_dev->vlan_features;
-        dev->features |= NETIF_F_LLTX;
+        dev->hw_features = NETIF_F_ALL_TX_OFFLOADS;
+        dev->features |= real_dev->vlan_features | NETIF_F_LLTX;
         dev->gso_max_size = real_dev->gso_max_size;
 
         /* ipv6 shared card related stuff */
@@ -707,6 +544,7 @@ static int vlan_dev_init(struct net_device *dev)
         dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid;
 #endif
 
+        dev->needed_headroom = real_dev->needed_headroom;
         if (real_dev->features & NETIF_F_HW_VLAN_TX) {
                 dev->header_ops      = real_dev->header_ops;
                 dev->hard_header_len = real_dev->hard_header_len;
@@ -745,6 +583,19 @@ static void vlan_dev_uninit(struct net_device *dev)
         }
 }
 
+static u32 vlan_dev_fix_features(struct net_device *dev, u32 features)
+{
+        struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
+
+        features &= real_dev->features;
+        features &= real_dev->vlan_features;
+        if (dev_ethtool_get_rx_csum(real_dev))
+                features |= NETIF_F_RXCSUM;
+        features |= NETIF_F_LLTX;
+
+        return features;
+}
+
 static int vlan_ethtool_get_settings(struct net_device *dev,
                                      struct ethtool_cmd *cmd)
 {
@@ -760,18 +611,6 @@ static void vlan_ethtool_get_drvinfo(struct net_device *dev,
         strcpy(info->fw_version, "N/A");
 }
 
-static u32 vlan_ethtool_get_rx_csum(struct net_device *dev)
-{
-        const struct vlan_dev_info *vlan = vlan_dev_info(dev);
-        return dev_ethtool_get_rx_csum(vlan->real_dev);
-}
-
-static u32 vlan_ethtool_get_flags(struct net_device *dev)
-{
-        const struct vlan_dev_info *vlan = vlan_dev_info(dev);
-        return dev_ethtool_get_flags(vlan->real_dev);
-}
-
 static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
 {
 
@@ -809,32 +648,10 @@ static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev, st
         return stats;
 }
 
-static int vlan_ethtool_set_tso(struct net_device *dev, u32 data)
-{
-       if (data) {
-                struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
-
-                /* Underlying device must support TSO for VLAN-tagged packets
-                 * and must have TSO enabled now.
-                 */
-                if (!(real_dev->vlan_features & NETIF_F_TSO))
-                        return -EOPNOTSUPP;
-                if (!(real_dev->features & NETIF_F_TSO))
-                        return -EINVAL;
-                dev->features |= NETIF_F_TSO;
-        } else {
-                dev->features &= ~NETIF_F_TSO;
-        }
-        return 0;
-}
-
 static const struct ethtool_ops vlan_ethtool_ops = {
         .get_settings           = vlan_ethtool_get_settings,
         .get_drvinfo            = vlan_ethtool_get_drvinfo,
         .get_link               = ethtool_op_get_link,
-        .get_rx_csum            = vlan_ethtool_get_rx_csum,
-        .get_flags              = vlan_ethtool_get_flags,
-        .set_tso                = vlan_ethtool_set_tso,
 };
 
 static const struct net_device_ops vlan_netdev_ops = {
@@ -858,7 +675,9 @@ static const struct net_device_ops vlan_netdev_ops = {
         .ndo_fcoe_enable        = vlan_dev_fcoe_enable,
         .ndo_fcoe_disable       = vlan_dev_fcoe_disable,
         .ndo_fcoe_get_wwn       = vlan_dev_fcoe_get_wwn,
+        .ndo_fcoe_ddp_target    = vlan_dev_fcoe_ddp_target,
 #endif
+        .ndo_fix_features       = vlan_dev_fix_features,
 };
 
 void vlan_setup(struct net_device *dev)