diff options
Diffstat (limited to 'drivers/net/r8169.c')
| -rw-r--r-- | drivers/net/r8169.c | 209 |
1 files changed, 137 insertions, 72 deletions
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 058524f3eb49..fb03e6ff3716 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -134,47 +134,52 @@ enum mac_version { RTL_GIGA_MAC_VER_33 = 0x21, // 8168E }; -#define _R(NAME,MAC,MASK) \ - { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK } +enum rtl_tx_desc_version { + RTL_TD_0 = 0, + RTL_TD_1 = 1, +}; + +#define _R(NAME,MAC,TD) \ + { .name = NAME, .mac_version = MAC, .txd_version = TD } static const struct { const char *name; u8 mac_version; - u32 RxConfigMask; /* Clears the bits supported by this chip */ + enum rtl_tx_desc_version txd_version; } rtl_chip_info[] = { - _R("RTL8169", RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169 - _R("RTL8169s", RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S - _R("RTL8110s", RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S - _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB - _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd - _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe - _R("RTL8102e", RTL_GIGA_MAC_VER_07, 0xff7e1880), // PCI-E - _R("RTL8102e", RTL_GIGA_MAC_VER_08, 0xff7e1880), // PCI-E - _R("RTL8102e", RTL_GIGA_MAC_VER_09, 0xff7e1880), // PCI-E - _R("RTL8101e", RTL_GIGA_MAC_VER_10, 0xff7e1880), // PCI-E - _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E - _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E - _R("RTL8101e", RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139 - _R("RTL8100e", RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139 - _R("RTL8100e", RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139 - _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E - _R("RTL8101e", RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E - _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E - _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E - _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_20, 0xff7e1880), // PCI-E - _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_21, 0xff7e1880), // PCI-E - _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_22, 0xff7e1880), // PCI-E - _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_23, 0xff7e1880), // PCI-E - _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_24, 0xff7e1880), // PCI-E - _R("RTL8168d/8111d", RTL_GIGA_MAC_VER_25, 0xff7e1880), // PCI-E - _R("RTL8168d/8111d", RTL_GIGA_MAC_VER_26, 0xff7e1880), // PCI-E - _R("RTL8168dp/8111dp", RTL_GIGA_MAC_VER_27, 0xff7e1880), // PCI-E - _R("RTL8168dp/8111dp", RTL_GIGA_MAC_VER_28, 0xff7e1880), // PCI-E - _R("RTL8105e", RTL_GIGA_MAC_VER_29, 0xff7e1880), // PCI-E - _R("RTL8105e", RTL_GIGA_MAC_VER_30, 0xff7e1880), // PCI-E - _R("RTL8168dp/8111dp", RTL_GIGA_MAC_VER_31, 0xff7e1880), // PCI-E - _R("RTL8168e/8111e", RTL_GIGA_MAC_VER_32, 0xff7e1880), // PCI-E - _R("RTL8168e/8111e", RTL_GIGA_MAC_VER_33, 0xff7e1880) // PCI-E + _R("RTL8169", RTL_GIGA_MAC_VER_01, RTL_TD_0), // 8169 + _R("RTL8169s", RTL_GIGA_MAC_VER_02, RTL_TD_0), // 8169S + _R("RTL8110s", RTL_GIGA_MAC_VER_03, RTL_TD_0), // 8110S + _R("RTL8169sb/8110sb", RTL_GIGA_MAC_VER_04, RTL_TD_0), // 8169SB + _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_05, RTL_TD_0), // 8110SCd + _R("RTL8169sc/8110sc", RTL_GIGA_MAC_VER_06, RTL_TD_0), // 8110SCe + _R("RTL8102e", RTL_GIGA_MAC_VER_07, RTL_TD_1), // PCI-E + _R("RTL8102e", RTL_GIGA_MAC_VER_08, RTL_TD_1), // PCI-E + _R("RTL8102e", RTL_GIGA_MAC_VER_09, RTL_TD_1), // PCI-E + _R("RTL8101e", RTL_GIGA_MAC_VER_10, RTL_TD_0), // PCI-E + _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_11, RTL_TD_0), // PCI-E + _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_12, RTL_TD_0), // PCI-E + _R("RTL8101e", RTL_GIGA_MAC_VER_13, RTL_TD_0), // PCI-E 8139 + _R("RTL8100e", RTL_GIGA_MAC_VER_14, RTL_TD_0), // PCI-E 8139 + _R("RTL8100e", RTL_GIGA_MAC_VER_15, RTL_TD_0), // PCI-E 8139 + _R("RTL8168b/8111b", RTL_GIGA_MAC_VER_17, RTL_TD_0), // PCI-E + _R("RTL8101e", RTL_GIGA_MAC_VER_16, RTL_TD_0), // PCI-E + _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_18, RTL_TD_1), // PCI-E + _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_19, RTL_TD_1), // PCI-E + _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_20, RTL_TD_1), // PCI-E + _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_21, RTL_TD_1), // PCI-E + _R("RTL8168c/8111c", RTL_GIGA_MAC_VER_22, RTL_TD_1), // PCI-E + _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_23, RTL_TD_1), // PCI-E + _R("RTL8168cp/8111cp", RTL_GIGA_MAC_VER_24, RTL_TD_1), // PCI-E + _R("RTL8168d/8111d", RTL_GIGA_MAC_VER_25, RTL_TD_1), // PCI-E + _R("RTL8168d/8111d", RTL_GIGA_MAC_VER_26, RTL_TD_1), // PCI-E + _R("RTL8168dp/8111dp", RTL_GIGA_MAC_VER_27, RTL_TD_1), // PCI-E + _R("RTL8168dp/8111dp", RTL_GIGA_MAC_VER_28, RTL_TD_1), // PCI-E + _R("RTL8105e", RTL_GIGA_MAC_VER_29, RTL_TD_1), // PCI-E + _R("RTL8105e", RTL_GIGA_MAC_VER_30, RTL_TD_1), // PCI-E + _R("RTL8168dp/8111dp", RTL_GIGA_MAC_VER_31, RTL_TD_1), // PCI-E + _R("RTL8168e/8111e", RTL_GIGA_MAC_VER_32, RTL_TD_1), // PCI-E + _R("RTL8168e/8111e", RTL_GIGA_MAC_VER_33, RTL_TD_1) // PCI-E }; #undef _R @@ -230,6 +235,9 @@ enum rtl_registers { IntrStatus = 0x3e, TxConfig = 0x40, RxConfig = 0x44, + +#define RTL_RX_CONFIG_MASK 0xff7e1880u + RxMissed = 0x4c, Cfg9346 = 0x50, Config0 = 0x51, @@ -452,21 +460,69 @@ enum rtl_register_content { CounterDump = 0x8, }; -enum desc_status_bit { +enum rtl_desc_bit { + /* First doubleword. */ DescOwn = (1 << 31), /* Descriptor is owned by NIC */ RingEnd = (1 << 30), /* End of descriptor ring */ FirstFrag = (1 << 29), /* First segment of a packet */ LastFrag = (1 << 28), /* Final segment of a packet */ +}; + +/* Generic case. */ +enum rtl_tx_desc_bit { + /* First doubleword. */ + TD_LSO = (1 << 27), /* Large Send Offload */ +#define TD_MSS_MAX 0x07ffu /* MSS value */ - /* Tx private */ - LargeSend = (1 << 27), /* TCP Large Send Offload (TSO) */ - MSSShift = 16, /* MSS value position */ - MSSMask = 0xfff, /* MSS value + LargeSend bit: 12 bits */ - IPCS = (1 << 18), /* Calculate IP checksum */ - UDPCS = (1 << 17), /* Calculate UDP/IP checksum */ - TCPCS = (1 << 16), /* Calculate TCP/IP checksum */ - TxVlanTag = (1 << 17), /* Add VLAN tag */ + /* Second doubleword. */ + TxVlanTag = (1 << 17), /* Add VLAN tag */ +}; + +/* 8169, 8168b and 810x except 8102e. */ +enum rtl_tx_desc_bit_0 { + /* First doubleword. */ +#define TD0_MSS_SHIFT 16 /* MSS position (11 bits) */ + TD0_TCP_CS = (1 << 16), /* Calculate TCP/IP checksum */ + TD0_UDP_CS = (1 << 17), /* Calculate UDP/IP checksum */ + TD0_IP_CS = (1 << 18), /* Calculate IP checksum */ +}; + +/* 8102e, 8168c and beyond. */ +enum rtl_tx_desc_bit_1 { + /* Second doubleword. */ +#define TD1_MSS_SHIFT 18 /* MSS position (11 bits) */ + TD1_IP_CS = (1 << 29), /* Calculate IP checksum */ + TD1_TCP_CS = (1 << 30), /* Calculate TCP/IP checksum */ + TD1_UDP_CS = (1 << 31), /* Calculate UDP/IP checksum */ +}; +static const struct rtl_tx_desc_info { + struct { + u32 udp; + u32 tcp; + } checksum; + u16 mss_shift; + u16 opts_offset; +} tx_desc_info [] = { + [RTL_TD_0] = { + .checksum = { + .udp = TD0_IP_CS | TD0_UDP_CS, + .tcp = TD0_IP_CS | TD0_TCP_CS + }, + .mss_shift = TD0_MSS_SHIFT, + .opts_offset = 0 + }, + [RTL_TD_1] = { + .checksum = { + .udp = TD1_IP_CS | TD1_UDP_CS, + .tcp = TD1_IP_CS | TD1_TCP_CS + }, + .mss_shift = TD1_MSS_SHIFT, + .opts_offset = 1 + } +}; + +enum rtl_rx_desc_bit { /* Rx private */ PID1 = (1 << 18), /* Protocol ID bit 1/2 */ PID0 = (1 << 17), /* Protocol ID bit 2/2 */ @@ -531,8 +587,8 @@ struct rtl8169_private { struct napi_struct napi; spinlock_t lock; /* spin lock flag */ u32 msg_enable; - int chipset; - int mac_version; + u16 txd_version; + u16 mac_version; u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */ u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */ u32 dirty_rx; @@ -1288,7 +1344,7 @@ static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) static u32 rtl8169_fix_features(struct net_device *dev, u32 features) { - if (dev->mtu > MSSMask) + if (dev->mtu > TD_MSS_MAX) features &= ~NETIF_F_ALL_TSO; return features; @@ -3194,7 +3250,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) struct mii_if_info *mii; struct net_device *dev; void __iomem *ioaddr; - unsigned int i; + int chipset, i; int rc; if (netif_msg_drv(&debug)) { @@ -3336,7 +3392,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) "driver bug, MAC version not found in rtl_chip_info\n"); goto err_out_msi_4; } - tp->chipset = i; + chipset = i; + tp->txd_version = rtl_chip_info[chipset].txd_version; RTL_W8(Cfg9346, Cfg9346_Unlock); RTL_W8(Config1, RTL_R8(Config1) | PMEnable); @@ -3413,8 +3470,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_drvdata(pdev, dev); netif_info(tp, probe, dev, "%s at 0x%lx, %pM, XID %08x IRQ %d\n", - rtl_chip_info[tp->chipset].name, - dev->base_addr, dev->dev_addr, + rtl_chip_info[chipset].name, dev->base_addr, dev->dev_addr, (u32)(RTL_R32(TxConfig) & 0x9cf0f8ff), dev->irq); if ((tp->mac_version == RTL_GIGA_MAC_VER_27) || @@ -3572,7 +3628,7 @@ static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp) void __iomem *ioaddr = tp->mmio_addr; u32 cfg = rtl8169_rx_config; - cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); + cfg |= (RTL_R32(RxConfig) & RTL_RX_CONFIG_MASK); RTL_W32(RxConfig, cfg); /* Set DMA burst size and Interframe Gap Time */ @@ -4564,7 +4620,7 @@ static void rtl8169_tx_timeout(struct net_device *dev) } static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb, - u32 opts1) + u32 *opts) { struct skb_shared_info *info = skb_shinfo(skb); unsigned int cur_frag, entry; @@ -4592,9 +4648,11 @@ static int rtl8169_xmit_frags(struct rtl8169_private *tp, struct sk_buff *skb, } /* anti gcc 2.95.3 bugware (sic) */ - status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); + status = opts[0] | len | + (RingEnd * !((entry + 1) % NUM_TX_DESC)); txd->opts1 = cpu_to_le32(status); + txd->opts2 = cpu_to_le32(opts[1]); txd->addr = cpu_to_le64(mapping); tp->tx_skb[entry].len = len; @@ -4612,23 +4670,26 @@ err_out: return -EIO; } -static inline u32 rtl8169_tso_csum(struct sk_buff *skb, struct net_device *dev) +static inline void rtl8169_tso_csum(struct rtl8169_private *tp, + struct sk_buff *skb, u32 *opts) { + const struct rtl_tx_desc_info *info = tx_desc_info + tp->txd_version; u32 mss = skb_shinfo(skb)->gso_size; + int offset = info->opts_offset; - if (mss) - return LargeSend | ((mss & MSSMask) << MSSShift); - - if (skb->ip_summed == CHECKSUM_PARTIAL) { + if (mss) { + opts[0] |= TD_LSO; + opts[offset] |= min(mss, TD_MSS_MAX) << info->mss_shift; + } else if (skb->ip_summed == CHECKSUM_PARTIAL) { const struct iphdr *ip = ip_hdr(skb); if (ip->protocol == IPPROTO_TCP) - return IPCS | TCPCS; + opts[offset] |= info->checksum.tcp; else if (ip->protocol == IPPROTO_UDP) - return IPCS | UDPCS; - WARN_ON(1); /* we need a WARN() */ + opts[offset] |= info->checksum.udp; + else + WARN_ON_ONCE(1); } - return 0; } static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb, @@ -4641,7 +4702,7 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb, struct device *d = &tp->pci_dev->dev; dma_addr_t mapping; u32 status, len; - u32 opts1; + u32 opts[2]; int frags; if (unlikely(TX_BUFFS_AVAIL(tp) < skb_shinfo(skb)->nr_frags)) { @@ -4662,24 +4723,28 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb, tp->tx_skb[entry].len = len; txd->addr = cpu_to_le64(mapping); - txd->opts2 = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb)); - opts1 = DescOwn | rtl8169_tso_csum(skb, dev); + opts[1] = cpu_to_le32(rtl8169_tx_vlan_tag(tp, skb)); + opts[0] = DescOwn; - frags = rtl8169_xmit_frags(tp, skb, opts1); + rtl8169_tso_csum(tp, skb, opts); + + frags = rtl8169_xmit_frags(tp, skb, opts); if (frags < 0) goto err_dma_1; else if (frags) - opts1 |= FirstFrag; + opts[0] |= FirstFrag; else { - opts1 |= FirstFrag | LastFrag; + opts[0] |= FirstFrag | LastFrag; tp->tx_skb[entry].skb = skb; } + txd->opts2 = cpu_to_le32(opts[1]); + wmb(); /* anti gcc 2.95.3 bugware (sic) */ - status = opts1 | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); + status = opts[0] | len | (RingEnd * !((entry + 1) % NUM_TX_DESC)); txd->opts1 = cpu_to_le32(status); tp->cur_tx += frags + 1; @@ -5167,7 +5232,7 @@ static void rtl_set_rx_mode(struct net_device *dev) spin_lock_irqsave(&tp->lock, flags); tmp = rtl8169_rx_config | rx_mode | - (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); + (RTL_R32(RxConfig) & RTL_RX_CONFIG_MASK); if (tp->mac_version > RTL_GIGA_MAC_VER_06) { u32 data = mc_filter[0]; |
