diff options
Diffstat (limited to 'target/linux/generic/patches-3.3/721-phy_packets.patch')
| -rw-r--r-- | target/linux/generic/patches-3.3/721-phy_packets.patch | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.3/721-phy_packets.patch b/target/linux/generic/patches-3.3/721-phy_packets.patch new file mode 100644 index 000000000..575fbaeaa --- /dev/null +++ b/target/linux/generic/patches-3.3/721-phy_packets.patch @@ -0,0 +1,175 @@ +--- a/include/linux/netdevice.h ++++ b/include/linux/netdevice.h +@@ -1078,6 +1078,11 @@ struct net_device { + const struct net_device_ops *netdev_ops; + const struct ethtool_ops *ethtool_ops; + ++#ifdef CONFIG_ETHERNET_PACKET_MANGLE ++ void (*eth_mangle_rx)(struct net_device *dev, struct sk_buff *skb); ++ struct sk_buff *(*eth_mangle_tx)(struct net_device *dev, struct sk_buff *skb); ++#endif ++ + /* Hardware header description */ + const struct header_ops *header_ops; + +@@ -1134,6 +1139,9 @@ struct net_device { + void *ax25_ptr; /* AX.25 specific data */ + struct wireless_dev *ieee80211_ptr; /* IEEE 802.11 specific data, + assign before registering */ ++#ifdef CONFIG_ETHERNET_PACKET_MANGLE ++ void *phy_ptr; /* PHY device specific data */ ++#endif + + /* + * Cache lines mostly used on receive path (including eth_type_trans()) +--- a/include/linux/if.h ++++ b/include/linux/if.h +@@ -80,6 +80,7 @@ + * skbs on transmit */ + #define IFF_UNICAST_FLT 0x20000 /* Supports unicast filtering */ + #define IFF_TEAM_PORT 0x40000 /* device used as team port */ ++#define IFF_NO_IP_ALIGN 0x80000 /* do not ip-align allocated rx pkts */ + + #define IF_GET_IFACE 0x0001 /* for querying only */ + #define IF_GET_PROTO 0x0002 +--- a/include/linux/skbuff.h ++++ b/include/linux/skbuff.h +@@ -1661,6 +1661,10 @@ extern struct sk_buff *dev_alloc_skb(uns + extern struct sk_buff *__netdev_alloc_skb(struct net_device *dev, + unsigned int length, gfp_t gfp_mask); + ++extern struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev, ++ unsigned int length, gfp_t gfp); ++ ++ + /** + * netdev_alloc_skb - allocate an skbuff for rx on a specific device + * @dev: network device to receive on +@@ -1680,16 +1684,6 @@ static inline struct sk_buff *netdev_all + return __netdev_alloc_skb(dev, length, GFP_ATOMIC); + } + +-static inline struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev, +- unsigned int length, gfp_t gfp) +-{ +- struct sk_buff *skb = __netdev_alloc_skb(dev, length + NET_IP_ALIGN, gfp); +- +- if (NET_IP_ALIGN && skb) +- skb_reserve(skb, NET_IP_ALIGN); +- return skb; +-} +- + static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev, + unsigned int length) + { +--- a/net/Kconfig ++++ b/net/Kconfig +@@ -23,6 +23,12 @@ menuconfig NET + + if NET + ++config ETHERNET_PACKET_MANGLE ++ bool ++ help ++ This option can be selected by phy drivers that need to mangle ++ packets going in or out of an ethernet device. ++ + config WANT_COMPAT_NETLINK_MESSAGES + bool + help +--- a/net/core/dev.c ++++ b/net/core/dev.c +@@ -2267,9 +2267,19 @@ int dev_hard_start_xmit(struct sk_buff * + } + } + +- skb_len = skb->len; +- rc = ops->ndo_start_xmit(skb, dev); +- trace_net_dev_xmit(skb, rc, dev, skb_len); ++#ifdef CONFIG_ETHERNET_PACKET_MANGLE ++ if (!dev->eth_mangle_tx || ++ (skb = dev->eth_mangle_tx(dev, skb)) != NULL) ++#else ++ if (1) ++#endif ++ { ++ skb_len = skb->len; ++ rc = ops->ndo_start_xmit(skb, dev); ++ trace_net_dev_xmit(skb, rc, dev, skb_len); ++ } else { ++ rc = NETDEV_TX_OK; ++ } + if (rc == NETDEV_TX_OK) + txq_trans_update(txq); + return rc; +@@ -2289,9 +2299,19 @@ gso: + if (dev->priv_flags & IFF_XMIT_DST_RELEASE) + skb_dst_drop(nskb); + +- skb_len = nskb->len; +- rc = ops->ndo_start_xmit(nskb, dev); +- trace_net_dev_xmit(nskb, rc, dev, skb_len); ++#ifdef CONFIG_ETHERNET_PACKET_MANGLE ++ if (!dev->eth_mangle_tx || ++ (nskb = dev->eth_mangle_tx(dev, nskb)) != NULL) ++#else ++ if (1) ++#endif ++ { ++ skb_len = nskb->len; ++ rc = ops->ndo_start_xmit(nskb, dev); ++ trace_net_dev_xmit(nskb, rc, dev, skb_len); ++ } else { ++ rc = NETDEV_TX_OK; ++ } + if (unlikely(rc != NETDEV_TX_OK)) { + if (rc & ~NETDEV_TX_MASK) + goto out_kfree_gso_skb; +--- a/net/core/skbuff.c ++++ b/net/core/skbuff.c +@@ -58,6 +58,7 @@ + #include <linux/scatterlist.h> + #include <linux/errqueue.h> + #include <linux/prefetch.h> ++#include <linux/if.h> + + #include <net/protocol.h> + #include <net/dst.h> +@@ -320,6 +321,22 @@ struct sk_buff *__netdev_alloc_skb(struc + } + EXPORT_SYMBOL(__netdev_alloc_skb); + ++struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev, ++ unsigned int length, gfp_t gfp) ++{ ++ struct sk_buff *skb = __netdev_alloc_skb(dev, length + NET_IP_ALIGN, gfp); ++ ++#ifdef CONFIG_ETHERNET_PACKET_MANGLE ++ if (dev->priv_flags & IFF_NO_IP_ALIGN) ++ return skb; ++#endif ++ ++ if (NET_IP_ALIGN && skb) ++ skb_reserve(skb, NET_IP_ALIGN); ++ return skb; ++} ++EXPORT_SYMBOL(__netdev_alloc_skb_ip_align); ++ + void skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page, int off, + int size) + { +--- a/net/ethernet/eth.c ++++ b/net/ethernet/eth.c +@@ -160,6 +160,12 @@ __be16 eth_type_trans(struct sk_buff *sk + struct ethhdr *eth; + + skb->dev = dev; ++ ++#ifdef CONFIG_ETHERNET_PACKET_MANGLE ++ if (dev->eth_mangle_rx) ++ dev->eth_mangle_rx(dev, skb); ++#endif ++ + skb_reset_mac_header(skb); + skb_pull_inline(skb, ETH_HLEN); + eth = eth_hdr(skb); |