From f1bce4ad2f1cee6759711904b9fffe4a3dd8af87 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Wed, 28 Aug 2019 22:28:03 +0200 Subject: [PATCH] r8169: add support for RTL8125 This adds support for 2.5Gbps chip RTL8125, it's partially based on the r8125 vendor driver. Tested with a Delock 89531 PCIe card against a Netgear GS110MX Multi-Gig switch. Firmware isn't strictly needed, but on some systems there may be compatibility issues w/o firmware. Firmware has been submitted to linux-firmware. Signed-off-by: Heiner Kallweit Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/Kconfig | 9 +- drivers/net/ethernet/realtek/r8169_main.c | 274 ++++++++++++++++++++-- 2 files changed, 265 insertions(+), 18 deletions(-) diff --git a/drivers/net/ethernet/realtek/Kconfig b/drivers/net/ethernet/realtek/Kconfig index b18e7a91d5cd..5e0b9d2f14f7 100644 --- a/drivers/net/ethernet/realtek/Kconfig +++ b/drivers/net/ethernet/realtek/Kconfig @@ -96,14 +96,19 @@ config 8139_OLD_RX_RESET old RX-reset behavior. If unsure, say N. config R8169 - tristate "Realtek 8169 gigabit ethernet support" + tristate "Realtek 8169/8168/8101/8125 ethernet support" depends on PCI select FW_LOADER select CRC32 select PHYLIB select REALTEK_PHY ---help--- - Say Y here if you have a Realtek 8169 PCI Gigabit Ethernet adapter. + Say Y here if you have a Realtek Ethernet adapter belonging to + the following families: + RTL8169 Gigabit Ethernet + RTL8168 Gigabit Ethernet + RTL8101 Fast Ethernet + RTL8125 2.5GBit Ethernet To compile this driver as a module, choose M here: the module will be called r8169. This is recommended. diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 4489cd9f2274..4d1779e39175 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -135,6 +135,8 @@ enum mac_version { RTL_GIGA_MAC_VER_49, RTL_GIGA_MAC_VER_50, RTL_GIGA_MAC_VER_51, + RTL_GIGA_MAC_VER_60, + RTL_GIGA_MAC_VER_61, RTL_GIGA_MAC_NONE }; @@ -200,6 +202,8 @@ static const struct { [RTL_GIGA_MAC_VER_49] = {"RTL8168ep/8111ep" }, [RTL_GIGA_MAC_VER_50] = {"RTL8168ep/8111ep" }, [RTL_GIGA_MAC_VER_51] = {"RTL8168ep/8111ep" }, + [RTL_GIGA_MAC_VER_60] = {"RTL8125" }, + [RTL_GIGA_MAC_VER_61] = {"RTL8125" }, }; static const struct pci_device_id rtl8169_pci_tbl[] = { @@ -220,6 +224,8 @@ static const struct pci_device_id rtl8169_pci_tbl[] = { { PCI_VDEVICE(USR, 0x0116) }, { PCI_VENDOR_ID_LINKSYS, 0x1032, PCI_ANY_ID, 0x0024 }, { 0x0001, 0x8168, PCI_ANY_ID, 0x2410 }, + { PCI_VDEVICE(REALTEK, 0x8125) }, + { PCI_VDEVICE(REALTEK, 0x3000) }, {} }; @@ -384,6 +390,19 @@ enum rtl8168_registers { #define EARLY_TALLY_EN (1 << 16) }; +enum rtl8125_registers { + IntrMask_8125 = 0x38, + IntrStatus_8125 = 0x3c, + TxPoll_8125 = 0x90, + MAC0_BKP = 0x19e0, +}; + +#define RX_VLAN_INNER_8125 BIT(22) +#define RX_VLAN_OUTER_8125 BIT(23) +#define RX_VLAN_8125 (RX_VLAN_INNER_8125 | RX_VLAN_OUTER_8125) + +#define RX_FETCH_DFLT_8125 (8 << 27) + enum rtl_register_content { /* InterruptStatusBits */ SYSErr = 0x8000, @@ -727,6 +746,11 @@ static void rtl_tx_performance_tweak(struct rtl8169_private *tp, u16 force) PCI_EXP_DEVCTL_READRQ, force); } +static bool rtl_is_8125(struct rtl8169_private *tp) +{ + return tp->mac_version >= RTL_GIGA_MAC_VER_60; +} + static bool rtl_is_8168evl_up(struct rtl8169_private *tp) { return tp->mac_version >= RTL_GIGA_MAC_VER_34 && @@ -1023,7 +1047,7 @@ static void rtl_writephy(struct rtl8169_private *tp, int location, int val) case RTL_GIGA_MAC_VER_31: r8168dp_2_mdio_write(tp, location, val); break; - case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51: + case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_61: r8168g_mdio_write(tp, location, val); break; default: @@ -1040,7 +1064,7 @@ static int rtl_readphy(struct rtl8169_private *tp, int location) case RTL_GIGA_MAC_VER_28: case RTL_GIGA_MAC_VER_31: return r8168dp_2_mdio_read(tp, location); - case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51: + case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_61: return r8168g_mdio_read(tp, location); default: return r8169_mdio_read(tp, location); @@ -1324,17 +1348,26 @@ static u8 rtl8168d_efuse_read(struct rtl8169_private *tp, int reg_addr) static u32 rtl_get_events(struct rtl8169_private *tp) { - return RTL_R16(tp, IntrStatus); + if (rtl_is_8125(tp)) + return RTL_R32(tp, IntrStatus_8125); + else + return RTL_R16(tp, IntrStatus); } static void rtl_ack_events(struct rtl8169_private *tp, u32 bits) { - RTL_W16(tp, IntrStatus, bits); + if (rtl_is_8125(tp)) + RTL_W32(tp, IntrStatus_8125, bits); + else + RTL_W16(tp, IntrStatus, bits); } static void rtl_irq_disable(struct rtl8169_private *tp) { - RTL_W16(tp, IntrMask, 0); + if (rtl_is_8125(tp)) + RTL_W32(tp, IntrMask_8125, 0); + else + RTL_W16(tp, IntrMask, 0); tp->irq_enabled = 0; } @@ -1345,7 +1378,10 @@ static void rtl_irq_disable(struct rtl8169_private *tp) static void rtl_irq_enable(struct rtl8169_private *tp) { tp->irq_enabled = 1; - RTL_W16(tp, IntrMask, tp->irq_mask); + if (rtl_is_8125(tp)) + RTL_W32(tp, IntrMask_8125, tp->irq_mask); + else + RTL_W16(tp, IntrMask, tp->irq_mask); } static void rtl8169_irq_mask_and_ack(struct rtl8169_private *tp) @@ -1410,7 +1446,6 @@ static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts) { - unsigned int i, tmp; static const struct { u32 opt; u16 reg; @@ -1423,20 +1458,25 @@ static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts) { WAKE_ANY, Config5, LanWake }, { WAKE_MAGIC, Config3, MagicPacket } }; + unsigned int i, tmp = ARRAY_SIZE(cfg); u8 options; rtl_unlock_config_regs(tp); if (rtl_is_8168evl_up(tp)) { - tmp = ARRAY_SIZE(cfg) - 1; + tmp--; if (wolopts & WAKE_MAGIC) rtl_eri_set_bits(tp, 0x0dc, ERIAR_MASK_0100, MagicPacket_v2); else rtl_eri_clear_bits(tp, 0x0dc, ERIAR_MASK_0100, MagicPacket_v2); - } else { - tmp = ARRAY_SIZE(cfg); + } else if (rtl_is_8125(tp)) { + tmp--; + if (wolopts & WAKE_MAGIC) + r8168_mac_ocp_modify(tp, 0xc0b6, 0, BIT(0)); + else + r8168_mac_ocp_modify(tp, 0xc0b6, BIT(0), 0); } for (i = 0; i < tmp; i++) { @@ -1542,6 +1582,13 @@ static int rtl8169_set_features(struct net_device *dev, else rx_config &= ~(AcceptErr | AcceptRunt); + if (rtl_is_8125(tp)) { + if (features & NETIF_F_HW_VLAN_CTAG_RX) + rx_config |= RX_VLAN_8125; + else + rx_config &= ~RX_VLAN_8125; + } + RTL_W32(tp, RxConfig, rx_config); if (features & NETIF_F_RXCSUM) @@ -1549,10 +1596,12 @@ static int rtl8169_set_features(struct net_device *dev, else tp->cp_cmd &= ~RxChkSum; - if (features & NETIF_F_HW_VLAN_CTAG_RX) - tp->cp_cmd |= RxVlan; - else - tp->cp_cmd &= ~RxVlan; + if (!rtl_is_8125(tp)) { + if (features & NETIF_F_HW_VLAN_CTAG_RX) + tp->cp_cmd |= RxVlan; + else + tp->cp_cmd &= ~RxVlan; + } RTL_W16(tp, CPlusCmd, tp->cp_cmd); RTL_R16(tp, CPlusCmd); @@ -1851,6 +1900,9 @@ static int rtl_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec) int i; u16 w; + if (rtl_is_8125(tp)) + return -EOPNOTSUPP; + memset(ec, 0, sizeof(*ec)); /* get rx/tx scale corresponding to current speed and CPlusCmd[0:1] */ @@ -1919,6 +1971,9 @@ static int rtl_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec) u16 w = 0, cp01; int i; + if (rtl_is_8125(tp)) + return -EOPNOTSUPP; + scale = rtl_coalesce_choose_scale(dev, max(p[0].usecs, p[1].usecs) * 1000, &cp01); if (IS_ERR(scale)) @@ -2065,6 +2120,10 @@ static void rtl8169_get_mac_version(struct rtl8169_private *tp) u16 val; u16 mac_version; } mac_info[] = { + /* 8125 family. */ + { 0x7cf, 0x608, RTL_GIGA_MAC_VER_60 }, + { 0x7c8, 0x608, RTL_GIGA_MAC_VER_61 }, + /* 8168EP family. */ { 0x7cf, 0x502, RTL_GIGA_MAC_VER_51 }, { 0x7cf, 0x501, RTL_GIGA_MAC_VER_50 }, @@ -3615,6 +3674,8 @@ static void rtl_hw_phy_config(struct net_device *dev) [RTL_GIGA_MAC_VER_49] = rtl8168ep_1_hw_phy_config, [RTL_GIGA_MAC_VER_50] = rtl8168ep_2_hw_phy_config, [RTL_GIGA_MAC_VER_51] = rtl8168ep_2_hw_phy_config, + [RTL_GIGA_MAC_VER_60] = NULL, + [RTL_GIGA_MAC_VER_61] = NULL, }; struct rtl8169_private *tp = netdev_priv(dev); @@ -3742,6 +3803,8 @@ static void rtl_pll_power_down(struct rtl8169_private *tp) case RTL_GIGA_MAC_VER_48: case RTL_GIGA_MAC_VER_50: case RTL_GIGA_MAC_VER_51: + case RTL_GIGA_MAC_VER_60: + case RTL_GIGA_MAC_VER_61: RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) & ~0x80); break; case RTL_GIGA_MAC_VER_40: @@ -3771,6 +3834,8 @@ static void rtl_pll_power_up(struct rtl8169_private *tp) case RTL_GIGA_MAC_VER_48: case RTL_GIGA_MAC_VER_50: case RTL_GIGA_MAC_VER_51: + case RTL_GIGA_MAC_VER_60: + case RTL_GIGA_MAC_VER_61: RTL_W8(tp, PMCH, RTL_R8(tp, PMCH) | 0xc0); break; case RTL_GIGA_MAC_VER_40: @@ -3803,6 +3868,10 @@ static void rtl_init_rxcfg(struct rtl8169_private *tp) case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51: RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST | RX_EARLY_OFF); break; + case RTL_GIGA_MAC_VER_60 ... RTL_GIGA_MAC_VER_61: + RTL_W32(tp, RxConfig, RX_FETCH_DFLT_8125 | RX_VLAN_8125 | + RX_DMA_BURST); + break; default: RTL_W32(tp, RxConfig, RX128_INT_EN | RX_DMA_BURST); break; @@ -5020,6 +5089,126 @@ static void rtl_hw_start_8106(struct rtl8169_private *tp) rtl_hw_aspm_clkreq_enable(tp, true); } +DECLARE_RTL_COND(rtl_mac_ocp_e00e_cond) +{ + return r8168_mac_ocp_read(tp, 0xe00e) & BIT(13); +} + +static void rtl_hw_start_8125_common(struct rtl8169_private *tp) +{ + rtl_pcie_state_l2l3_disable(tp); + + RTL_W16(tp, 0x382, 0x221b); + RTL_W8(tp, 0x4500, 0); + RTL_W16(tp, 0x4800, 0); + + /* disable UPS */ + r8168_mac_ocp_modify(tp, 0xd40a, 0x0010, 0x0000); + + RTL_W8(tp, Config1, RTL_R8(tp, Config1) & ~0x10); + + r8168_mac_ocp_write(tp, 0xc140, 0xffff); + r8168_mac_ocp_write(tp, 0xc142, 0xffff); + + r8168_mac_ocp_modify(tp, 0xd3e2, 0x0fff, 0x03a9); + r8168_mac_ocp_modify(tp, 0xd3e4, 0x00ff, 0x0000); + r8168_mac_ocp_modify(tp, 0xe860, 0x0000, 0x0080); + + /* disable new tx descriptor format */ + r8168_mac_ocp_modify(tp, 0xeb58, 0x0001, 0x0000); + + r8168_mac_ocp_modify(tp, 0xe614, 0x0700, 0x0400); + r8168_mac_ocp_modify(tp, 0xe63e, 0x0c30, 0x0020); + r8168_mac_ocp_modify(tp, 0xc0b4, 0x0000, 0x000c); + r8168_mac_ocp_modify(tp, 0xeb6a, 0x00ff, 0x0033); + r8168_mac_ocp_modify(tp, 0xeb50, 0x03e0, 0x0040); + r8168_mac_ocp_modify(tp, 0xe056, 0x00f0, 0x0030); + r8168_mac_ocp_modify(tp, 0xe040, 0x1000, 0x0000); + r8168_mac_ocp_modify(tp, 0xe0c0, 0x4f0f, 0x4403); + r8168_mac_ocp_modify(tp, 0xe052, 0x0080, 0x0067); + r8168_mac_ocp_modify(tp, 0xc0ac, 0x0080, 0x1f00); + r8168_mac_ocp_modify(tp, 0xd430, 0x0fff, 0x047f); + r8168_mac_ocp_modify(tp, 0xe84c, 0x0000, 0x00c0); + r8168_mac_ocp_modify(tp, 0xea1c, 0x0004, 0x0000); + r8168_mac_ocp_modify(tp, 0xeb54, 0x0000, 0x0001); + udelay(1); + r8168_mac_ocp_modify(tp, 0xeb54, 0x0001, 0x0000); + RTL_W16(tp, 0x1880, RTL_R16(tp, 0x1880) & ~0x0030); + + r8168_mac_ocp_write(tp, 0xe098, 0xc302); + + rtl_udelay_loop_wait_low(tp, &rtl_mac_ocp_e00e_cond, 1000, 10); + + RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN); + udelay(10); +} + +static void rtl_hw_start_8125_1(struct rtl8169_private *tp) +{ + static const struct ephy_info e_info_8125_1[] = { + { 0x01, 0xffff, 0xa812 }, + { 0x09, 0xffff, 0x520c }, + { 0x04, 0xffff, 0xd000 }, + { 0x0d, 0xffff, 0xf702 }, + { 0x0a, 0xffff, 0x8653 }, + { 0x06, 0xffff, 0x001e }, + { 0x08, 0xffff, 0x3595 }, + { 0x20, 0xffff, 0x9455 }, + { 0x21, 0xffff, 0x99ff }, + { 0x02, 0xffff, 0x6046 }, + { 0x29, 0xffff, 0xfe00 }, + { 0x23, 0xffff, 0xab62 }, + + { 0x41, 0xffff, 0xa80c }, + { 0x49, 0xffff, 0x520c }, + { 0x44, 0xffff, 0xd000 }, + { 0x4d, 0xffff, 0xf702 }, + { 0x4a, 0xffff, 0x8653 }, + { 0x46, 0xffff, 0x001e }, + { 0x48, 0xffff, 0x3595 }, + { 0x60, 0xffff, 0x9455 }, + { 0x61, 0xffff, 0x99ff }, + { 0x42, 0xffff, 0x6046 }, + { 0x69, 0xffff, 0xfe00 }, + { 0x63, 0xffff, 0xab62 }, + }; + + rtl_set_def_aspm_entry_latency(tp); + + /* disable aspm and clock request before access ephy */ + rtl_hw_aspm_clkreq_enable(tp, false); + rtl_ephy_init(tp, e_info_8125_1); + + rtl_hw_start_8125_common(tp); +} + +static void rtl_hw_start_8125_2(struct rtl8169_private *tp) +{ + static const struct ephy_info e_info_8125_2[] = { + { 0x04, 0xffff, 0xd000 }, + { 0x0a, 0xffff, 0x8653 }, + { 0x23, 0xffff, 0xab66 }, + { 0x20, 0xffff, 0x9455 }, + { 0x21, 0xffff, 0x99ff }, + { 0x29, 0xffff, 0xfe04 }, + + { 0x44, 0xffff, 0xd000 }, + { 0x4a, 0xffff, 0x8653 }, + { 0x63, 0xffff, 0xab66 }, + { 0x60, 0xffff, 0x9455 }, + { 0x61, 0xffff, 0x99ff }, + { 0x69, 0xffff, 0xfe04 }, + }; + + rtl_set_def_aspm_entry_latency(tp); + + /* disable aspm and clock request before access ephy */ + rtl_hw_aspm_clkreq_enable(tp, false); + rtl_ephy_init(tp, e_info_8125_2); + + rtl_hw_start_8125_common(tp); +} + static void rtl_hw_config(struct rtl8169_private *tp) { static const rtl_generic_fct hw_configs[] = { @@ -5068,12 +5257,25 @@ static void rtl_hw_config(struct rtl8169_private *tp) [RTL_GIGA_MAC_VER_49] = rtl_hw_start_8168ep_1, [RTL_GIGA_MAC_VER_50] = rtl_hw_start_8168ep_2, [RTL_GIGA_MAC_VER_51] = rtl_hw_start_8168ep_3, + [RTL_GIGA_MAC_VER_60] = rtl_hw_start_8125_1, + [RTL_GIGA_MAC_VER_61] = rtl_hw_start_8125_2, }; if (hw_configs[tp->mac_version]) hw_configs[tp->mac_version](tp); } +static void rtl_hw_start_8125(struct rtl8169_private *tp) +{ + int i; + + /* disable interrupt coalescing */ + for (i = 0xa00; i < 0xb00; i += 4) + RTL_W32(tp, i, 0); + + rtl_hw_config(tp); +} + static void rtl_hw_start_8168(struct rtl8169_private *tp) { if (tp->mac_version == RTL_GIGA_MAC_VER_13 || @@ -5127,6 +5329,8 @@ static void rtl_hw_start(struct rtl8169_private *tp) if (tp->mac_version <= RTL_GIGA_MAC_VER_06) rtl_hw_start_8169(tp); + else if (rtl_is_8125(tp)) + rtl_hw_start_8125(tp); else rtl_hw_start_8168(tp); @@ -5510,6 +5714,14 @@ static bool rtl_chip_supports_csum_v2(struct rtl8169_private *tp) } } +static void rtl8169_doorbell(struct rtl8169_private *tp) +{ + if (rtl_is_8125(tp)) + RTL_W16(tp, TxPoll_8125, BIT(0)); + else + RTL_W8(tp, TxPoll, NPQ); +} + static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb, struct net_device *dev) { @@ -5589,7 +5801,7 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb, } if (door_bell) - RTL_W8(tp, TxPoll, NPQ); + rtl8169_doorbell(tp); if (unlikely(stop_queue)) { /* Sync with rtl_tx: @@ -5751,7 +5963,7 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp, * it is slow enough). -- FR */ if (tp->cur_tx != dirty_tx) - RTL_W8(tp, TxPoll, NPQ); + rtl8169_doorbell(tp); } } @@ -6473,6 +6685,8 @@ static void rtl_read_mac_address(struct rtl8169_private *tp, value = rtl_eri_read(tp, 0xe4); mac_addr[4] = (value >> 0) & 0xff; mac_addr[5] = (value >> 8) & 0xff; + } else if (rtl_is_8125(tp)) { + rtl_read_mac_from_reg(tp, mac_addr, MAC0_BKP); } } @@ -6570,6 +6784,31 @@ static void rtl_hw_init_8168g(struct rtl8169_private *tp) rtl_udelay_loop_wait_high(tp, &rtl_link_list_ready_cond, 100, 42); } +static void rtl_hw_init_8125(struct rtl8169_private *tp) +{ + tp->ocp_base = OCP_STD_PHY_BASE; + + RTL_W32(tp, MISC, RTL_R32(tp, MISC) | RXDV_GATED_EN); + + if (!rtl_udelay_loop_wait_high(tp, &rtl_rxtx_empty_cond, 100, 42)) + return; + + RTL_W8(tp, ChipCmd, RTL_R8(tp, ChipCmd) & ~(CmdTxEnb | CmdRxEnb)); + msleep(1); + RTL_W8(tp, MCU, RTL_R8(tp, MCU) & ~NOW_IS_OOB); + + r8168_mac_ocp_modify(tp, 0xe8de, BIT(14), 0); + + if (!rtl_udelay_loop_wait_high(tp, &rtl_link_list_ready_cond, 100, 42)) + return; + + r8168_mac_ocp_write(tp, 0xc0aa, 0x07d0); + r8168_mac_ocp_write(tp, 0xc0a6, 0x0150); + r8168_mac_ocp_write(tp, 0xc01e, 0x5555); + + rtl_udelay_loop_wait_high(tp, &rtl_link_list_ready_cond, 100, 42); +} + static void rtl_hw_initialize(struct rtl8169_private *tp) { switch (tp->mac_version) { @@ -6579,6 +6818,9 @@ static void rtl_hw_initialize(struct rtl8169_private *tp) case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_48: rtl_hw_init_8168g(tp); break; + case RTL_GIGA_MAC_VER_60 ... RTL_GIGA_MAC_VER_61: + rtl_hw_init_8125(tp); + break; default: break; }