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authorJonas Gorski <jogo@openwrt.org>2015-12-02 22:23:22 +0000
committerJonas Gorski <jogo@openwrt.org>2015-12-02 22:23:22 +0000
commit621677154f39f2e0b698a558b8b795db84a8e014 (patch)
tree3c4d60241f9ad7f52f12aa022af8b5a684b2ab08 /target/linux/generic/patches-4.4/721-phy_packets.patch
parent4454a3fb6375cf1adf17f63a54cd7660bc40caa7 (diff)
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kernel: add linux 4.4 support
Based on 4.4-rc3. Runtime tested on MIPS. Signed-off-by: Jonas Gorski <jogo@openwrt.org> SVN-Revision: 47701
Diffstat (limited to 'target/linux/generic/patches-4.4/721-phy_packets.patch')
-rw-r--r--target/linux/generic/patches-4.4/721-phy_packets.patch161
1 files changed, 161 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.4/721-phy_packets.patch b/target/linux/generic/patches-4.4/721-phy_packets.patch
new file mode 100644
index 0000000000..08165087e4
--- /dev/null
+++ b/target/linux/generic/patches-4.4/721-phy_packets.patch
@@ -0,0 +1,161 @@
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -1297,6 +1297,7 @@ enum netdev_priv_flags {
+ IFF_NO_QUEUE = 1<<21,
+ IFF_OPENVSWITCH = 1<<22,
+ IFF_L3MDEV_SLAVE = 1<<23,
++ IFF_NO_IP_ALIGN = 1<<24,
+ };
+
+ #define IFF_802_1Q_VLAN IFF_802_1Q_VLAN
+@@ -1323,6 +1324,7 @@ enum netdev_priv_flags {
+ #define IFF_NO_QUEUE IFF_NO_QUEUE
+ #define IFF_OPENVSWITCH IFF_OPENVSWITCH
+ #define IFF_L3MDEV_SLAVE IFF_L3MDEV_SLAVE
++#define IFF_NO_IP_ALIGN IFF_NO_IP_ALIGN
+
+ /**
+ * struct net_device - The DEVICE structure.
+@@ -1602,6 +1604,11 @@ struct net_device {
+ const struct l3mdev_ops *l3mdev_ops;
+ #endif
+
++#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
++
+ const struct header_ops *header_ops;
+
+ unsigned int flags;
+@@ -1668,6 +1675,10 @@ struct net_device {
+ struct mpls_dev __rcu *mpls_ptr;
+ #endif
+
++#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/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -2185,6 +2185,10 @@ static inline int pskb_trim(struct sk_bu
+ return (len < skb->len) ? __pskb_trim(skb, len) : 0;
+ }
+
++extern struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev,
++ unsigned int length, gfp_t gfp);
++
++
+ /**
+ * pskb_trim_unique - remove end from a paged unique (not cloned) buffer
+ * @skb: buffer to alter
+@@ -2307,16 +2311,6 @@ static inline struct sk_buff *dev_alloc_
+ }
+
+
+-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
+@@ -25,6 +25,12 @@ 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
+@@ -2708,10 +2708,20 @@ static int xmit_one(struct sk_buff *skb,
+ if (!list_empty(&ptype_all) || !list_empty(&dev->ptype_all))
+ dev_queue_xmit_nit(skb, dev);
+
+- len = skb->len;
+- trace_net_dev_start_xmit(skb, dev);
+- rc = netdev_start_xmit(skb, dev, txq, more);
+- trace_net_dev_xmit(skb, rc, dev, len);
++#ifdef CONFIG_ETHERNET_PACKET_MANGLE
++ if (!dev->eth_mangle_tx ||
++ (skb = dev->eth_mangle_tx(dev, skb)) != NULL)
++#else
++ if (1)
++#endif
++ {
++ len = skb->len;
++ trace_net_dev_start_xmit(skb, dev);
++ rc = netdev_start_xmit(skb, dev, txq, more);
++ trace_net_dev_xmit(skb, rc, dev, len);
++ } else {
++ rc = NETDEV_TX_OK;
++ }
+
+ return rc;
+ }
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -63,6 +63,7 @@
+ #include <linux/errqueue.h>
+ #include <linux/prefetch.h>
+ #include <linux/if_vlan.h>
++#include <linux/if.h>
+
+ #include <net/protocol.h>
+ #include <net/dst.h>
+@@ -518,6 +519,22 @@ skb_fail:
+ }
+ EXPORT_SYMBOL(__napi_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 && (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, unsigned int truesize)
+ {
+--- a/net/ethernet/eth.c
++++ b/net/ethernet/eth.c
+@@ -168,6 +168,12 @@ __be16 eth_type_trans(struct sk_buff *sk
+ const 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);
+
+ eth = (struct ethhdr *)skb->data;