From 0e8a23d053a4cf9f5d452e9decf2bf1dbf891dc2 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Wed, 25 Feb 2009 16:47:11 +0000 Subject: ag71xx driver: add a workaround for the ar8216 chip, until we get a suitable switch driver SVN-Revision: 14655 --- target/linux/ar71xx/config-2.6.28 | 1 + .../files/arch/mips/include/asm/mach-ar71xx/platform.h | 1 + target/linux/ar71xx/files/drivers/net/ag71xx/Kconfig | 9 +++++++++ target/linux/ar71xx/files/drivers/net/ag71xx/Makefile | 8 +++++++- target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h | 18 +++++++++++++++++- .../ar71xx/files/drivers/net/ag71xx/ag71xx_main.c | 13 ++++++++++--- 6 files changed, 45 insertions(+), 5 deletions(-) (limited to 'target') diff --git a/target/linux/ar71xx/config-2.6.28 b/target/linux/ar71xx/config-2.6.28 index f2fcc47d8d..17d7c0b441 100644 --- a/target/linux/ar71xx/config-2.6.28 +++ b/target/linux/ar71xx/config-2.6.28 @@ -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 diff --git a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h index a3448f5a8b..672da31c83 100644 --- a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h +++ b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/platform.h @@ -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); diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/Kconfig b/target/linux/ar71xx/files/drivers/net/ag71xx/Kconfig index 18be11593c..56a59648cf 100644 --- a/target/linux/ar71xx/files/drivers/net/ag71xx/Kconfig +++ b/target/linux/ar71xx/files/drivers/net/ag71xx/Kconfig @@ -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. diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile b/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile index 37c98d22a3..aa1798d195 100644 --- a/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile +++ b/target/linux/ar71xx/files/drivers/net/ag71xx/Makefile @@ -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 diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h index 3dbb453fc5..1d22453a97 100644 --- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h +++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h @@ -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 */ diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c index 01834887c5..e5eced2286 100644 --- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c +++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c @@ -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++; -- cgit v1.2.3