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kernel: rewrite the phy packet hook, put it in the network stack to avoid having to keep non-upstream ethernet driver changes

Browse Source 
SVN-Revision: 31637
This commit is contained in:
Felix Fietkau
2012-05-06 21:19:14 +00:00
parent c3f0b757a3
commit 0ff3c396d3
37 changed files with 414 additions and 444 deletions
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220
target/linux/generic/patches-3.3/721-phy_packets.patch
View File

@@ -1,63 +1,175 @@
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -149,6 +149,18 @@ int phy_scan_fixups(struct phy_device *p
}
EXPORT_SYMBOL(phy_scan_fixups);
+static int generic_receive_skb(struct sk_buff *skb)
+{
+ skb->protocol = eth_type_trans(skb, skb->dev);
+ return netif_receive_skb(skb);
+}
+
+static int generic_rx(struct sk_buff *skb)
+{
+ skb->protocol = eth_type_trans(skb, skb->dev);
+ return netif_rx(skb);
+}
+
static struct phy_device* phy_device_create(struct mii_bus *bus,
int addr, int phy_id)
{
@@ -180,6 +192,8 @@ static struct phy_device* phy_device_cre
dev_set_name(&dev->dev, PHY_ID_FMT, bus->id, addr);
dev->state = PHY_DOWN;
+ dev->netif_receive_skb = &generic_receive_skb;
+ dev->netif_rx = &generic_rx;
mutex_init(&dev->lock);
INIT_DELAYED_WORK(&dev->state_queue, phy_state_machine);
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -339,6 +339,20 @@ struct phy_device {
void (*adjust_link)(struct net_device *dev);
void (*adjust_state)(struct net_device *dev);
+
+ /*
+ * By default these point to the original functions
+ * with the same name. adding them to the phy_device
+ * allows the phy driver to override them for packet
+ * mangling if the ethernet driver supports it
+ * This is required to support some really horrible
+ * switches such as the Marvell 88E6060
+ */
+ int (*netif_receive_skb)(struct sk_buff *skb);
+ int (*netif_rx)(struct sk_buff *skb);
+
+ /* alignment offset for packets */
+ int pkt_align;
};
#define to_phy_device(d) container_of(d, struct phy_device, dev)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1134,6 +1134,7 @@ struct net_device {
@@ -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
@@ -2246,9 +2246,19 @@ 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;
@@ -2268,9 +2278,19 @@ 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);

3
target/linux/generic/patches-3.3/722-phy_mvswitch.patch
View File

@@ -1,11 +1,12 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -113,6 +113,9 @@ config ADM6996_PHY
@@ -113,6 +113,10 @@ config ADM6996_PHY
Currently supports the ADM6996FC and ADM6996M switches.
Support for FC is very limited.
+config MVSWITCH_PHY
+ tristate "Driver for Marvell 88E6060 switches"
+ select ETHERNET_PACKET_MANGLE
+
config FIXED_PHY
bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"

4
target/linux/generic/patches-3.3/723-phy_ip175c.patch
View File

@@ -1,8 +1,8 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -116,6 +116,10 @@ config ADM6996_PHY
config MVSWITCH_PHY
@@ -117,6 +117,10 @@ config MVSWITCH_PHY
tristate "Driver for Marvell 88E6060 switches"
select ETHERNET_PACKET_MANGLE
+config IP17XX_PHY
+ tristate "Driver for IC+ IP17xx switches"

3
target/linux/generic/patches-3.3/724-phy_ar8216.patch
View File

@@ -1,11 +1,12 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -120,6 +120,10 @@ config IP17XX_PHY
@@ -121,6 +121,11 @@ config IP17XX_PHY
tristate "Driver for IC+ IP17xx switches"
select SWCONFIG
+config AR8216_PHY
+ tristate "Driver for Atheros AR8216 switches"
+ select ETHERNET_PACKET_MANGLE
+ select SWCONFIG
+
config FIXED_PHY

4
target/linux/generic/patches-3.3/725-phy_rtl8306.patch
View File

@@ -1,7 +1,7 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -124,6 +124,10 @@ config AR8216_PHY
tristate "Driver for Atheros AR8216 switches"
@@ -126,6 +126,10 @@ config AR8216_PHY
select ETHERNET_PACKET_MANGLE
select SWCONFIG
+config RTL8306_PHY

2
target/linux/generic/patches-3.3/726-phy_rtl8366.patch
View File

@@ -1,6 +1,6 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -166,6 +166,31 @@ config MDIO_OCTEON
@@ -168,6 +168,31 @@ config MDIO_OCTEON
If in doubt, say Y.

2
target/linux/generic/patches-3.3/727-phy-rtl8367.patch
View File

@@ -1,6 +1,6 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -183,6 +183,10 @@ config RTL8366RB_PHY
@@ -185,6 +185,10 @@ config RTL8366RB_PHY
tristate "Driver for the Realtek RTL8366RB switch"
select SWCONFIG

2
target/linux/generic/patches-3.3/728-phy-micrel.patch
View File

@@ -1,6 +1,6 @@
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -128,6 +128,11 @@ config RTL8306_PHY
@@ -130,6 +130,11 @@ config RTL8306_PHY
tristate "Driver for Realtek RTL8306S switches"
select SWCONFIG

2
target/linux/generic/patches-3.3/750-hostap_txpower.patch
View File

@@ -1,6 +1,6 @@
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -2340,13 +2340,13 @@ int prism2_ap_get_sta_qual(local_info_t
@@ -2340,13 +2340,13 @@ int prism2_ap_get_sta_qual(local_info_t
addr[count].sa_family = ARPHRD_ETHER;
memcpy(addr[count].sa_data, sta->addr, ETH_ALEN);
if (sta->last_rx_silence == 0)

2
target/linux/generic/patches-3.3/830-ledtrig_morse.patch
View File

@@ -11,7 +11,7 @@
endif # NEW_LEDS
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -57,3 +57,4 @@ obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT) +=
@@ -57,3 +57,4 @@ obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT) +=
obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += ledtrig-backlight.o
obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o
obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o

2
target/linux/generic/patches-3.3/831-ledtrig_netdev.patch
View File

@@ -14,7 +14,7 @@
endif # NEW_LEDS
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -58,3 +58,4 @@ obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) +=
@@ -58,3 +58,4 @@ obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) +=
obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o
obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o
obj-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o

2
target/linux/generic/patches-3.3/941-ocf_20110720.patch
View File

@@ -34,7 +34,7 @@
* All of these routines try to estimate how many bits of randomness a
* particular randomness source. They do this by keeping track of the
* first and second order deltas of the event timings.
@@ -726,6 +736,63 @@ void add_disk_randomness(struct gendisk
@@ -726,6 +736,63 @@ void add_disk_randomness(struct gendisk
}
#endif

2
target/linux/generic/patches-3.3/980-update_arm_machtypes.patch
View File

@@ -3335,7 +3335,7 @@
pluto MACH_PLUTO PLUTO 3869
acfx100 MACH_ACFX100 ACFX100 3870
msm8625_rumi3 MACH_MSM8625_RUMI3 MSM8625_RUMI3 3871
@@ -1161,6 +3833,8 @@ valente_wx MACH_VALENTE_WX VALENTE_WX
@@ -1161,6 +3833,8 @@ valente_wx MACH_VALENTE_WX VALENTE_WX
huangshans MACH_HUANGSHANS HUANGSHANS 3879
bosphorus1 MACH_BOSPHORUS1 BOSPHORUS1 3880
prima MACH_PRIMA PRIMA 3881

2
target/linux/generic/patches-3.3/992-mpcore_wdt_fix_watchdog_counter_loading.patch
View File

@@ -51,7 +51,7 @@ Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>
+EXPORT_SYMBOL_GPL(twd_timer_get_rate);
--- a/drivers/watchdog/mpcore_wdt.c
+++ b/drivers/watchdog/mpcore_wdt.c
@@ -99,9 +99,7 @@ static void mpcore_wdt_keepalive(struct
@@ -99,9 +99,7 @@ static void mpcore_wdt_keepalive(struct
spin_lock(&wdt_lock);
/* Assume prescale is set to 256 */