diff options
Diffstat (limited to 'target/linux/generic/hack-5.10/721-net-add-packet-mangeling.patch')
| -rw-r--r-- | target/linux/generic/hack-5.10/721-net-add-packet-mangeling.patch | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/target/linux/generic/hack-5.10/721-net-add-packet-mangeling.patch b/target/linux/generic/hack-5.10/721-net-add-packet-mangeling.patch deleted file mode 100644 index fed3848a9c..0000000000 --- a/target/linux/generic/hack-5.10/721-net-add-packet-mangeling.patch +++ /dev/null @@ -1,167 +0,0 @@ -From ffe387740bbe88dd88bbe04d6375902708003d6e Mon Sep 17 00:00:00 2001 -From: Felix Fietkau <nbd@nbd.name> -Date: Fri, 7 Jul 2017 17:25:00 +0200 -Subject: net: add packet mangeling - -ar8216 switches have a hardware bug, which renders normal 802.1q support -unusable. Packet mangling is required to fix up the vlan for incoming -packets. - -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - include/linux/netdevice.h | 11 +++++++++++ - include/linux/skbuff.h | 14 ++++---------- - net/Kconfig | 6 ++++++ - net/core/dev.c | 20 +++++++++++++++----- - net/core/skbuff.c | 17 +++++++++++++++++ - net/ethernet/eth.c | 6 ++++++ - 6 files changed, 59 insertions(+), 15 deletions(-) - ---- a/include/linux/netdevice.h -+++ b/include/linux/netdevice.h -@@ -1648,6 +1648,7 @@ enum netdev_priv_flags { - IFF_FAILOVER_SLAVE = 1<<28, - IFF_L3MDEV_RX_HANDLER = 1<<29, - IFF_LIVE_RENAME_OK = 1<<30, -+ IFF_NO_IP_ALIGN = 1<<31, - }; - - #define IFF_802_1Q_VLAN IFF_802_1Q_VLAN -@@ -1680,6 +1681,7 @@ enum netdev_priv_flags { - #define IFF_FAILOVER_SLAVE IFF_FAILOVER_SLAVE - #define IFF_L3MDEV_RX_HANDLER IFF_L3MDEV_RX_HANDLER - #define IFF_LIVE_RENAME_OK IFF_LIVE_RENAME_OK -+#define IFF_NO_IP_ALIGN IFF_NO_IP_ALIGN - - /* Specifies the type of the struct net_device::ml_priv pointer */ - enum netdev_ml_priv_type { -@@ -2020,6 +2022,11 @@ struct net_device { - const struct tlsdev_ops *tlsdev_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; -@@ -2110,6 +2117,10 @@ 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 -@@ -2728,6 +2728,10 @@ 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 -@@ -2859,16 +2863,6 @@ 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 -@@ -26,6 +26,12 @@ 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 -@@ -3656,6 +3656,11 @@ static int xmit_one(struct sk_buff *skb, - if (dev_nit_active(dev)) - dev_queue_xmit_nit(skb, dev); - -+#ifdef CONFIG_ETHERNET_PACKET_MANGLE -+ if (dev->eth_mangle_tx && !(skb = dev->eth_mangle_tx(dev, skb))) -+ return NETDEV_TX_OK; -+#endif -+ - len = skb->len; - PRANDOM_ADD_NOISE(skb, dev, txq, len + jiffies); - trace_net_dev_start_xmit(skb, dev); ---- a/net/core/skbuff.c -+++ b/net/core/skbuff.c -@@ -60,6 +60,7 @@ - #include <linux/prefetch.h> - #include <linux/if_vlan.h> - #include <linux/mpls.h> -+#include <linux/if.h> - - #include <net/protocol.h> - #include <net/dst.h> -@@ -553,6 +554,22 @@ 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 -@@ -171,6 +171,12 @@ __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; |