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ag71xx driver: add a workaround for the ar8216 chip, until we get a suitable switch driver

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SVN-Revision: 14655
This commit is contained in:
Gabor Juhos 2009-02-25 16:47:11 +00:00
parent 9da4abfe58
commit 0e8a23d053
6 changed files with 45 additions and 5 deletions
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1
target/linux/ar71xx/config-2.6.28
View file

@ -4,6 +4,7 @@ CONFIG_32BIT=y
CONFIG_ADM6996_PHY=y
CONFIG_AG71XX=y
# CONFIG_AG71XX_DEBUG is not set
CONFIG_AG71XX_AR8216_SUPPORT=y
# CONFIG_AR71XX_EARLY_SERIAL is not set
CONFIG_AR71XX_MACH_AP83=y
CONFIG_AR71XX_MACH_AW_NR580=y

1
target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h
View file

@ -28,6 +28,7 @@ struct ag71xx_platform_data {
u8 has_gbit:1;
u8 is_ar91xx:1;
u8 has_ar8216:1;
void (* ddr_flush)(void);
void (* set_pll)(u32 pll);

9
target/linux/ar71xx/files/drivers/net/ag71xx/Kconfig
View file

@ -12,3 +12,12 @@ config AG71XX_DEBUG
default n
help
Atheros AR71xx built-in ethernet driver debugging messages.
config AG71XX_AR8216_SUPPORT
bool "special support for the Atheros AR8216 switch"
depends on AG71XX
default n
default y if AR71XX_MACH_WNR2000 || AR71XX_MACH_MZK_W04NU
help
Say 'y' here if you want to enable special support for the
Atheros AR8216 switch found on some boards.

8
target/linux/ar71xx/files/drivers/net/ag71xx/Makefile
View file

@ -2,6 +2,12 @@
# Makefile for the Atheros AR71xx built-in ethernet macs
#
ag71xx-y += ag71xx_main.o
ag71xx-y += ag71xx_ethtool.o
ag71xx-y += ag71xx_phy.o
ag71xx-y += ag71xx_mdio.o
ag71xx-$(CONFIG_AG71XX_AR8216_SUPPORT) += ag71xx_ar8216.o
obj-$(CONFIG_AG71XX) += ag71xx.o
ag71xx-objs := ag71xx_main.o ag71xx_ethtool.o ag71xx_phy.o ag71xx_mdio.o

18
target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
View file

@ -38,7 +38,7 @@
#define ETH_FCS_LEN 4
#define AG71XX_DRV_NAME "ag71xx"
#define AG71XX_DRV_VERSION "0.5.20"
#define AG71XX_DRV_VERSION "0.5.21"
#define AG71XX_NAPI_WEIGHT 64
#define AG71XX_OOM_REFILL (1 + HZ/10)
@ -430,4 +430,20 @@ static void inline ag71xx_mii_ctrl_set_speed(struct ag71xx *ag,
ag71xx_mii_ctrl_wr(ag, t);
}
#ifdef CONFIG_AG71XX_AR8216_SUPPORT
void ag71xx_add_ar8216_header(struct ag71xx *ag, struct sk_buff *skb);
int ag71xx_remove_ar8216_header(struct ag71xx *ag, struct sk_buff *skb);
#else
static inline void ag71xx_add_ar8216_header(struct ag71xx *ag,
struct sk_buff *skb)
{
}
static inline int ag71xx_remove_ar8216_header(struct ag71xx *ag,
struct sk_buff *skb)
{
return 0;
}
#endif
#endif /* _AG71XX_H */

13
target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
View file

@ -473,6 +473,8 @@ static int ag71xx_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (!ag71xx_desc_empty(desc))
goto err_drop;
ag71xx_add_ar8216_header(ag, skb);
if (skb->len <= 0) {
DBG("%s: packet len is too small\n", ag->dev->name);
goto err_drop;
@ -647,15 +649,20 @@ static int ag71xx_rx_packets(struct ag71xx *ag, int limit)
skb_put(skb, pktlen);
skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
skb->ip_summed = CHECKSUM_NONE;
netif_receive_skb(skb);
dev->last_rx = jiffies;
dev->stats.rx_packets++;
dev->stats.rx_bytes += pktlen;
if (ag71xx_remove_ar8216_header(ag, skb) != 0) {
dev->stats.rx_dropped++;
kfree_skb(skb);
} else {
skb->protocol = eth_type_trans(skb, dev);
netif_receive_skb(skb);
}
ring->buf[i].skb = NULL;
done++;