diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/Kconfig | 20 | ||||
| -rw-r--r-- | drivers/net/ioc3-eth.c | 48 |
2 files changed, 32 insertions, 36 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 10ed28ef356..734f8403c80 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -486,26 +486,6 @@ config SGI_IOC3_ETH the Ethernet-HOWTO, available from <http://www.tldp.org/docs.html#howto>. -config SGI_IOC3_ETH_HW_RX_CSUM - bool "Receive hardware checksums" - depends on SGI_IOC3_ETH && INET - default y - help - The SGI IOC3 network adapter supports TCP and UDP checksums in - hardware to offload processing of these checksums from the CPU. At - the moment only acceleration of IPv4 is supported. This option - enables offloading for checksums on receive. If unsure, say Y. - -config SGI_IOC3_ETH_HW_TX_CSUM - bool "Transmit hardware checksums" - depends on SGI_IOC3_ETH && INET - default y - help - The SGI IOC3 network adapter supports TCP and UDP checksums in - hardware to offload processing of these checksums from the CPU. At - the moment only acceleration of IPv4 is supported. This option - enables offloading for checksums on transmit. If unsure, say Y. - config MIPS_SIM_NET tristate "MIPS simulator Network device" depends on MIPS_SIM diff --git a/drivers/net/ioc3-eth.c b/drivers/net/ioc3-eth.c index 0834ef0eddb..c030030e586 100644 --- a/drivers/net/ioc3-eth.c +++ b/drivers/net/ioc3-eth.c @@ -5,7 +5,7 @@ * * Driver for SGI's IOC3 based Ethernet cards as found in the PCI card. * - * Copyright (C) 1999, 2000, 2001, 2003 Ralf Baechle + * Copyright (C) 1999, 2000, 01, 03, 06 Ralf Baechle * Copyright (C) 1995, 1999, 2000, 2001 by Silicon Graphics, Inc. * * References: @@ -62,12 +62,7 @@ #include <asm/pgtable.h> #include <asm/uaccess.h> #include <asm/sn/types.h> -#include <asm/sn/sn0/addrs.h> -#include <asm/sn/sn0/hubni.h> -#include <asm/sn/sn0/hubio.h> -#include <asm/sn/klconfig.h> #include <asm/sn/ioc3.h> -#include <asm/sn/sn0/ip27.h> #include <asm/pci/bridge.h> /* @@ -95,6 +90,9 @@ struct ioc3_private { u32 emcr, ehar_h, ehar_l; spinlock_t ioc3_lock; struct mii_if_info mii; + unsigned long flags; +#define IOC3_FLAG_RX_CHECKSUMS 1 + struct pci_dev *pdev; /* Members used by autonegotiation */ @@ -521,8 +519,6 @@ static struct net_device_stats *ioc3_get_stats(struct net_device *dev) return &ip->stats; } -#ifdef CONFIG_SGI_IOC3_ETH_HW_RX_CSUM - static void ioc3_tcpudp_checksum(struct sk_buff *skb, uint32_t hwsum, int len) { struct ethhdr *eh = eth_hdr(skb); @@ -590,7 +586,6 @@ static void ioc3_tcpudp_checksum(struct sk_buff *skb, uint32_t hwsum, int len) if (csum == 0xffff) skb->ip_summed = CHECKSUM_UNNECESSARY; } -#endif /* CONFIG_SGI_IOC3_ETH_HW_RX_CSUM */ static inline void ioc3_rx(struct ioc3_private *ip) { @@ -625,9 +620,9 @@ static inline void ioc3_rx(struct ioc3_private *ip) goto next; } -#ifdef CONFIG_SGI_IOC3_ETH_HW_RX_CSUM - ioc3_tcpudp_checksum(skb, w0 & ERXBUF_IPCKSUM_MASK,len); -#endif + if (likely(ip->flags & IOC3_FLAG_RX_CHECKSUMS)) + ioc3_tcpudp_checksum(skb, + w0 & ERXBUF_IPCKSUM_MASK, len); netif_rx(skb); @@ -1338,9 +1333,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dev->set_multicast_list = ioc3_set_multicast_list; dev->set_mac_address = ioc3_set_mac_address; dev->ethtool_ops = &ioc3_ethtool_ops; -#ifdef CONFIG_SGI_IOC3_ETH_HW_TX_CSUM dev->features = NETIF_F_IP_CSUM; -#endif sw_physid1 = ioc3_mdio_read(dev, ip->mii.phy_id, MII_PHYSID1); sw_physid2 = ioc3_mdio_read(dev, ip->mii.phy_id, MII_PHYSID2); @@ -1430,7 +1423,6 @@ static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) uint32_t w0 = 0; int produce; -#ifdef CONFIG_SGI_IOC3_ETH_HW_TX_CSUM /* * IOC3 has a fairly simple minded checksumming hardware which simply * adds up the 1's complement checksum for the entire packet and @@ -1478,7 +1470,6 @@ static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) w0 = ETXD_DOCHECKSUM | (csoff << ETXD_CHKOFF_SHIFT); } -#endif /* CONFIG_SGI_IOC3_ETH_HW_TX_CSUM */ spin_lock_irq(&ip->ioc3_lock); @@ -1633,12 +1624,37 @@ static u32 ioc3_get_link(struct net_device *dev) return rc; } +static u32 ioc3_get_rx_csum(struct net_device *dev) +{ + struct ioc3_private *ip = netdev_priv(dev); + + return ip->flags & IOC3_FLAG_RX_CHECKSUMS; +} + +static int ioc3_set_rx_csum(struct net_device *dev, u32 data) +{ + struct ioc3_private *ip = netdev_priv(dev); + + spin_lock_bh(&ip->ioc3_lock); + if (data) + ip->flags |= IOC3_FLAG_RX_CHECKSUMS; + else + ip->flags &= ~IOC3_FLAG_RX_CHECKSUMS; + spin_unlock_bh(&ip->ioc3_lock); + + return 0; +} + static const struct ethtool_ops ioc3_ethtool_ops = { .get_drvinfo = ioc3_get_drvinfo, .get_settings = ioc3_get_settings, .set_settings = ioc3_set_settings, .nway_reset = ioc3_nway_reset, .get_link = ioc3_get_link, + .get_rx_csum = ioc3_get_rx_csum, + .set_rx_csum = ioc3_set_rx_csum, + .get_tx_csum = ethtool_op_get_tx_csum, + .set_tx_csum = ethtool_op_set_tx_csum }; static int ioc3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |