From: Michał Mirosław Date: Fri, 8 Apr 2011 06:35:56 +0000 (+0000) Subject: net: r8169: convert to hw_features X-Git-Tag: Ubuntu-snapdragon-4.4.0-1050.54~17027^2~625 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=350fb32ae45ec74ea9cc117c728c48b8e840f0f9;p=mirror_ubuntu-artful-kernel.git net: r8169: convert to hw_features Simple conversion with a bit of needed cleanup. This also fixes: - confusion around vlan_features in rtl8169_vlan_mode(), - problem with broken TSO for too big MTU (the limit is set at 0xFFF --- max MSS field value). SG+IP_CSUM+TSO is left disabled by default, based on suggestion by David Dillow. Signed-off-by: Michał Mirosław Signed-off-by: David S. Miller --- diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index caa99cdb5818..058524f3eb49 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -1286,14 +1286,15 @@ static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) return ret; } -static u32 rtl8169_get_rx_csum(struct net_device *dev) +static u32 rtl8169_fix_features(struct net_device *dev, u32 features) { - struct rtl8169_private *tp = netdev_priv(dev); + if (dev->mtu > MSSMask) + features &= ~NETIF_F_ALL_TSO; - return tp->cp_cmd & RxChkSum; + return features; } -static int rtl8169_set_rx_csum(struct net_device *dev, u32 data) +static int rtl8169_set_features(struct net_device *dev, u32 features) { struct rtl8169_private *tp = netdev_priv(dev); void __iomem *ioaddr = tp->mmio_addr; @@ -1301,11 +1302,16 @@ static int rtl8169_set_rx_csum(struct net_device *dev, u32 data) spin_lock_irqsave(&tp->lock, flags); - if (data) + if (features & NETIF_F_RXCSUM) tp->cp_cmd |= RxChkSum; else tp->cp_cmd &= ~RxChkSum; + if (dev->features & NETIF_F_HW_VLAN_RX) + tp->cp_cmd |= RxVlan; + else + tp->cp_cmd &= ~RxVlan; + RTL_W16(CPlusCmd, tp->cp_cmd); RTL_R16(CPlusCmd); @@ -1321,27 +1327,6 @@ static inline u32 rtl8169_tx_vlan_tag(struct rtl8169_private *tp, TxVlanTag | swab16(vlan_tx_tag_get(skb)) : 0x00; } -#define NETIF_F_HW_VLAN_TX_RX (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX) - -static void rtl8169_vlan_mode(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - unsigned long flags; - - spin_lock_irqsave(&tp->lock, flags); - if (dev->features & NETIF_F_HW_VLAN_RX) - tp->cp_cmd |= RxVlan; - else - tp->cp_cmd &= ~RxVlan; - RTL_W16(CPlusCmd, tp->cp_cmd); - /* PCI commit */ - RTL_R16(CPlusCmd); - spin_unlock_irqrestore(&tp->lock, flags); - - dev->vlan_features = dev->features &~ NETIF_F_HW_VLAN_TX_RX; -} - static void rtl8169_rx_vlan_tag(struct RxDesc *desc, struct sk_buff *skb) { u32 opts2 = le32_to_cpu(desc->opts2); @@ -1522,28 +1507,6 @@ static void rtl8169_get_strings(struct net_device *dev, u32 stringset, u8 *data) } } -static int rtl8169_set_flags(struct net_device *dev, u32 data) -{ - struct rtl8169_private *tp = netdev_priv(dev); - unsigned long old_feat = dev->features; - int rc; - - if ((tp->mac_version == RTL_GIGA_MAC_VER_05) && - !(data & ETH_FLAG_RXVLAN)) { - netif_info(tp, drv, dev, "8110SCd requires hardware Rx VLAN\n"); - return -EINVAL; - } - - rc = ethtool_op_set_flags(dev, data, ETH_FLAG_TXVLAN | ETH_FLAG_RXVLAN); - if (rc) - return rc; - - if ((old_feat ^ dev->features) & NETIF_F_HW_VLAN_RX) - rtl8169_vlan_mode(dev); - - return 0; -} - static const struct ethtool_ops rtl8169_ethtool_ops = { .get_drvinfo = rtl8169_get_drvinfo, .get_regs_len = rtl8169_get_regs_len, @@ -1552,19 +1515,12 @@ static const struct ethtool_ops rtl8169_ethtool_ops = { .set_settings = rtl8169_set_settings, .get_msglevel = rtl8169_get_msglevel, .set_msglevel = rtl8169_set_msglevel, - .get_rx_csum = rtl8169_get_rx_csum, - .set_rx_csum = rtl8169_set_rx_csum, - .set_tx_csum = ethtool_op_set_tx_csum, - .set_sg = ethtool_op_set_sg, - .set_tso = ethtool_op_set_tso, .get_regs = rtl8169_get_regs, .get_wol = rtl8169_get_wol, .set_wol = rtl8169_set_wol, .get_strings = rtl8169_get_strings, .get_sset_count = rtl8169_get_sset_count, .get_ethtool_stats = rtl8169_get_ethtool_stats, - .set_flags = rtl8169_set_flags, - .get_flags = ethtool_op_get_flags, }; static void rtl8169_get_mac_version(struct rtl8169_private *tp, @@ -2979,6 +2935,8 @@ static const struct net_device_ops rtl8169_netdev_ops = { .ndo_tx_timeout = rtl8169_tx_timeout, .ndo_validate_addr = eth_validate_addr, .ndo_change_mtu = rtl8169_change_mtu, + .ndo_fix_features = rtl8169_fix_features, + .ndo_set_features = rtl8169_set_features, .ndo_set_mac_address = rtl_set_mac_address, .ndo_do_ioctl = rtl8169_ioctl, .ndo_set_multicast_list = rtl_set_rx_mode, @@ -3425,7 +3383,19 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) netif_napi_add(dev, &tp->napi, rtl8169_poll, R8169_NAPI_WEIGHT); - dev->features |= NETIF_F_HW_VLAN_TX_RX | NETIF_F_GRO; + /* don't enable SG, IP_CSUM and TSO by default - it might not work + * properly for all devices */ + dev->features |= NETIF_F_RXCSUM | + NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; + + dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | + NETIF_F_RXCSUM | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; + dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | + NETIF_F_HIGHDMA; + + if (tp->mac_version == RTL_GIGA_MAC_VER_05) + /* 8110SCd requires hardware Rx VLAN - disallow toggling */ + dev->hw_features &= ~NETIF_F_HW_VLAN_RX; tp->intr_mask = 0xffff; tp->hw_start = cfg->hw_start; @@ -3545,7 +3515,7 @@ static int rtl8169_open(struct net_device *dev) rtl8169_init_phy(dev, tp); - rtl8169_vlan_mode(dev); + rtl8169_set_features(dev, dev->features); rtl_pll_power_up(tp); @@ -4318,6 +4288,8 @@ static int rtl8169_change_mtu(struct net_device *dev, int new_mtu) return -EINVAL; dev->mtu = new_mtu; + netdev_update_features(dev); + return 0; } @@ -4642,12 +4614,11 @@ err_out: static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev) { - if (dev->features & NETIF_F_TSO) { - u32 mss = skb_shinfo(skb)->gso_size; + u32 mss = skb_shinfo(skb)->gso_size; + + if (mss) + return LargeSend | ((mss & MSSMask) << MSSShift); - if (mss) - return LargeSend | ((mss & MSSMask) << MSSShift); - } if (skb->ip_summed == CHECKSUM_PARTIAL) { const struct iphdr *ip = ip_hdr(skb);