diff options
author | Michael Brown <mcb30@ipxe.org> | 2012-04-17 21:35:40 +0100 |
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committer | Michael Brown <mcb30@ipxe.org> | 2012-04-18 16:33:36 +0100 |
commit | 2a0154db5b9a7d60aa363d48d441bf1bfe4ca7ad (patch) | |
tree | 882670ee1f82aaea8f3bbec6af233217e36af09f /src/drivers | |
parent | 9b2aabe534eb3804130ca0861cb23c1479cd7e02 (diff) | |
download | ipxe-2a0154db5b9a7d60aa363d48d441bf1bfe4ca7ad.zip ipxe-2a0154db5b9a7d60aa363d48d441bf1bfe4ca7ad.tar.gz ipxe-2a0154db5b9a7d60aa363d48d441bf1bfe4ca7ad.tar.bz2 |
[realtek] Replace driver for Realtek Gigabit NICs
Tested-by: Thomas Miletich <thomas.miletich@gmail.com>
Debugged-by: Thomas Miletich <thomas.miletich@gmail.com>
Tested-by: Robin Smidsrød <robin@smidsrod.no>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/drivers')
-rw-r--r-- | src/drivers/net/r8169.c | 2232 | ||||
-rw-r--r-- | src/drivers/net/r8169.h | 486 | ||||
-rw-r--r-- | src/drivers/net/realtek.c | 779 | ||||
-rw-r--r-- | src/drivers/net/realtek.h | 205 |
4 files changed, 984 insertions, 2718 deletions
diff --git a/src/drivers/net/r8169.c b/src/drivers/net/r8169.c deleted file mode 100644 index 13ab65b..0000000 --- a/src/drivers/net/r8169.c +++ /dev/null @@ -1,2232 +0,0 @@ -/* - * Copyright (c) 2008 Marty Connor <mdc@etherboot.org> - * Copyright (c) 2008 Entity Cyber, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * This driver is based on rtl8169 data sheets and work by: - * - * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw> - * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com> - * Copyright (c) a lot of people too. Please respect their work. - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <assert.h> -#include <byteswap.h> -#include <errno.h> -#include <ipxe/ethernet.h> -#include <ipxe/if_ether.h> -#include <ipxe/io.h> -#include <ipxe/iobuf.h> -#include <ipxe/malloc.h> -#include <ipxe/netdevice.h> -#include <ipxe/pci.h> -#include <ipxe/timer.h> -#include <mii.h> - -#include "r8169.h" - -/*** Low level hardware routines ***/ - -static void mdio_write(void *ioaddr, int reg_addr, int value) -{ - int i; - - DBGP ( "mdio_write\n" ); - - RTL_W32(PHYAR, 0x80000000 | (reg_addr & 0x1f) << 16 | (value & 0xffff)); - - for (i = 20; i > 0; i--) { - /* - * Check if the RTL8169 has completed writing to the specified - * MII register. - */ - if (!(RTL_R32(PHYAR) & 0x80000000)) - break; - udelay(25); - } -} - -static int mdio_read(void *ioaddr, int reg_addr) -{ - int i, value = -1; - - DBGP ( "mdio_read\n" ); - - RTL_W32(PHYAR, 0x0 | (reg_addr & 0x1f) << 16); - - for (i = 20; i > 0; i--) { - /* - * Check if the RTL8169 has completed retrieving data from - * the specified MII register. - */ - if (RTL_R32(PHYAR) & 0x80000000) { - value = RTL_R32(PHYAR) & 0xffff; - break; - } - udelay(25); - } - return value; -} - -static void mdio_patch(void *ioaddr, int reg_addr, int value) -{ - DBGP ( "mdio_patch\n" ); - - mdio_write(ioaddr, reg_addr, mdio_read(ioaddr, reg_addr) | value); -} - -static void rtl_ephy_write(void *ioaddr, int reg_addr, int value) -{ - unsigned int i; - - DBGP ( "rtl_ephy_write\n" ); - - RTL_W32(EPHYAR, EPHYAR_WRITE_CMD | (value & EPHYAR_DATA_MASK) | - (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT); - - for (i = 0; i < 100; i++) { - if (!(RTL_R32(EPHYAR) & EPHYAR_FLAG)) - break; - udelay(10); - } -} - -static u16 rtl_ephy_read(void *ioaddr, int reg_addr) -{ - u16 value = 0xffff; - unsigned int i; - - DBGP ( "rtl_ephy_read\n" ); - - RTL_W32(EPHYAR, (reg_addr & EPHYAR_REG_MASK) << EPHYAR_REG_SHIFT); - - for (i = 0; i < 100; i++) { - if (RTL_R32(EPHYAR) & EPHYAR_FLAG) { - value = RTL_R32(EPHYAR) & EPHYAR_DATA_MASK; - break; - } - udelay(10); - } - - return value; -} - -static void rtl_csi_write(void *ioaddr, int addr, int value) -{ - unsigned int i; - - DBGP ( "rtl_csi_write\n" ); - - RTL_W32(CSIDR, value); - RTL_W32(CSIAR, CSIAR_WRITE_CMD | (addr & CSIAR_ADDR_MASK) | - CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT); - - for (i = 0; i < 100; i++) { - if (!(RTL_R32(CSIAR) & CSIAR_FLAG)) - break; - udelay(10); - } -} - -static u32 rtl_csi_read(void *ioaddr, int addr) -{ - u32 value = ~0x00; - unsigned int i; - - DBGP ( "rtl_csi_read\n" ); - - RTL_W32(CSIAR, (addr & CSIAR_ADDR_MASK) | - CSIAR_BYTE_ENABLE << CSIAR_BYTE_ENABLE_SHIFT); - - for (i = 0; i < 100; i++) { - if (RTL_R32(CSIAR) & CSIAR_FLAG) { - value = RTL_R32(CSIDR); - break; - } - udelay(10); - } - - return value; -} - -static void rtl8169_irq_mask_and_ack(void *ioaddr) -{ - DBGP ( "rtl8169_irq_mask_and_ack\n" ); - - RTL_W16(IntrMask, 0x0000); - - RTL_W16(IntrStatus, 0xffff); -} - -static unsigned int rtl8169_tbi_reset_pending(void *ioaddr) -{ - DBGP ( "rtl8169_tbi_reset_pending\n" ); - - return RTL_R32(TBICSR) & TBIReset; -} - -static unsigned int rtl8169_xmii_reset_pending(void *ioaddr) -{ - DBGP ( "rtl8169_xmii_reset_pending\n" ); - - return mdio_read(ioaddr, MII_BMCR) & BMCR_RESET; -} - -static unsigned int rtl8169_tbi_link_ok(void *ioaddr) -{ - DBGP ( "rtl8169_tbi_link_ok\n" ); - - return RTL_R32(TBICSR) & TBILinkOk; -} - -static unsigned int rtl8169_xmii_link_ok(void *ioaddr) -{ - DBGP ( "rtl8169_xmii_link_ok\n" ); - - return RTL_R8(PHYstatus) & LinkStatus; -} - -static void rtl8169_tbi_reset_enable(void *ioaddr) -{ - DBGP ( "rtl8169_tbi_reset_enable\n" ); - - RTL_W32(TBICSR, RTL_R32(TBICSR) | TBIReset); -} - -static void rtl8169_xmii_reset_enable(void *ioaddr) -{ - unsigned int val; - - DBGP ( "rtl8169_xmii_reset_enable\n" ); - - val = mdio_read(ioaddr, MII_BMCR) | BMCR_RESET; - mdio_write(ioaddr, MII_BMCR, val & 0xffff); -} - -static int rtl8169_set_speed_tbi(struct net_device *dev, - u8 autoneg, u16 speed, u8 duplex) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void *ioaddr = tp->mmio_addr; - int ret = 0; - u32 reg; - - DBGP ( "rtl8169_set_speed_tbi\n" ); - - reg = RTL_R32(TBICSR); - if ((autoneg == AUTONEG_DISABLE) && (speed == SPEED_1000) && - (duplex == DUPLEX_FULL)) { - RTL_W32(TBICSR, reg & ~(TBINwEnable | TBINwRestart)); - } else if (autoneg == AUTONEG_ENABLE) - RTL_W32(TBICSR, reg | TBINwEnable | TBINwRestart); - else { - DBG ( "incorrect speed setting refused in TBI mode\n" ); - ret = -EOPNOTSUPP; - } - return ret; -} - -static int rtl8169_set_speed_xmii(struct net_device *dev, - u8 autoneg, u16 speed, u8 duplex) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void *ioaddr = tp->mmio_addr; - int auto_nego, giga_ctrl; - - DBGP ( "rtl8169_set_speed_xmii\n" ); - - auto_nego = mdio_read(ioaddr, MII_ADVERTISE); - auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL | - ADVERTISE_100HALF | ADVERTISE_100FULL); - giga_ctrl = mdio_read(ioaddr, MII_CTRL1000); - giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); - - if (autoneg == AUTONEG_ENABLE) { - auto_nego |= (ADVERTISE_10HALF | ADVERTISE_10FULL | - ADVERTISE_100HALF | ADVERTISE_100FULL); - giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; - } else { - if (speed == SPEED_10) - auto_nego |= ADVERTISE_10HALF | ADVERTISE_10FULL; - else if (speed == SPEED_100) - auto_nego |= ADVERTISE_100HALF | ADVERTISE_100FULL; - else if (speed == SPEED_1000) - giga_ctrl |= ADVERTISE_1000FULL | ADVERTISE_1000HALF; - - if (duplex == DUPLEX_HALF) - auto_nego &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL); - - if (duplex == DUPLEX_FULL) - auto_nego &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF); - - /* This tweak comes straight from Realtek's driver. */ - if ((speed == SPEED_100) && (duplex == DUPLEX_HALF) && - ((tp->mac_version == RTL_GIGA_MAC_VER_13) || - (tp->mac_version == RTL_GIGA_MAC_VER_16))) { - auto_nego = ADVERTISE_100HALF | ADVERTISE_CSMA; - } - } - - /* The 8100e/8101e/8102e do Fast Ethernet only. */ - if ((tp->mac_version == RTL_GIGA_MAC_VER_07) || - (tp->mac_version == RTL_GIGA_MAC_VER_08) || - (tp->mac_version == RTL_GIGA_MAC_VER_09) || - (tp->mac_version == RTL_GIGA_MAC_VER_10) || - (tp->mac_version == RTL_GIGA_MAC_VER_13) || - (tp->mac_version == RTL_GIGA_MAC_VER_14) || - (tp->mac_version == RTL_GIGA_MAC_VER_15) || - (tp->mac_version == RTL_GIGA_MAC_VER_16)) { - if ((giga_ctrl & (ADVERTISE_1000FULL | ADVERTISE_1000HALF))) { - DBG ( "PHY does not support 1000Mbps.\n" ); - } - giga_ctrl &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF); - } - - auto_nego |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; - - if ((tp->mac_version == RTL_GIGA_MAC_VER_11) || - (tp->mac_version == RTL_GIGA_MAC_VER_12) || - (tp->mac_version >= RTL_GIGA_MAC_VER_17)) { - /* - * Wake up the PHY. - * Vendor specific (0x1f) and reserved (0x0e) MII registers. - */ - mdio_write(ioaddr, 0x1f, 0x0000); - mdio_write(ioaddr, 0x0e, 0x0000); - } - - tp->phy_auto_nego_reg = auto_nego; - tp->phy_1000_ctrl_reg = giga_ctrl; - - mdio_write(ioaddr, MII_ADVERTISE, auto_nego); - mdio_write(ioaddr, MII_CTRL1000, giga_ctrl); - mdio_write(ioaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART); - return 0; -} - -static int rtl8169_set_speed(struct net_device *dev, - u8 autoneg, u16 speed, u8 duplex) -{ - struct rtl8169_private *tp = netdev_priv(dev); - int ret; - - DBGP ( "rtl8169_set_speed\n" ); - - ret = tp->set_speed(dev, autoneg, speed, duplex); - - return ret; -} - -static void rtl8169_write_gmii_reg_bit(void *ioaddr, int reg, - int bitnum, int bitval) -{ - int val; - - DBGP ( "rtl8169_write_gmii_reg_bit\n" ); - - val = mdio_read(ioaddr, reg); - val = (bitval == 1) ? - val | (bitval << bitnum) : val & ~(0x0001 << bitnum); - mdio_write(ioaddr, reg, val & 0xffff); -} - -static void rtl8169_get_mac_version(struct rtl8169_private *tp, - void *ioaddr) -{ - /* - * The driver currently handles the 8168Bf and the 8168Be identically - * but they can be identified more specifically through the test below - * if needed: - * - * (RTL_R32(TxConfig) & 0x700000) == 0x500000 ? 8168Bf : 8168Be - * - * Same thing for the 8101Eb and the 8101Ec: - * - * (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec - */ - const struct { - u32 mask; - u32 val; - int mac_version; - } mac_info[] = { - /* 8168D family. */ - { 0x7c800000, 0x28000000, RTL_GIGA_MAC_VER_25 }, - - /* 8168C family. */ - { 0x7cf00000, 0x3ca00000, RTL_GIGA_MAC_VER_24 }, - { 0x7cf00000, 0x3c900000, RTL_GIGA_MAC_VER_23 }, - { 0x7cf00000, 0x3c800000, RTL_GIGA_MAC_VER_18 }, - { 0x7c800000, 0x3c800000, RTL_GIGA_MAC_VER_24 }, - { 0x7cf00000, 0x3c000000, RTL_GIGA_MAC_VER_19 }, - { 0x7cf00000, 0x3c200000, RTL_GIGA_MAC_VER_20 }, - { 0x7cf00000, 0x3c300000, RTL_GIGA_MAC_VER_21 }, - { 0x7cf00000, 0x3c400000, RTL_GIGA_MAC_VER_22 }, - { 0x7c800000, 0x3c000000, RTL_GIGA_MAC_VER_22 }, - - /* 8168B family. */ - { 0x7cf00000, 0x38000000, RTL_GIGA_MAC_VER_12 }, - { 0x7cf00000, 0x38500000, RTL_GIGA_MAC_VER_17 }, - { 0x7c800000, 0x38000000, RTL_GIGA_MAC_VER_17 }, - { 0x7c800000, 0x30000000, RTL_GIGA_MAC_VER_11 }, - - /* 8101 family. */ - { 0x7cf00000, 0x34a00000, RTL_GIGA_MAC_VER_09 }, - { 0x7cf00000, 0x24a00000, RTL_GIGA_MAC_VER_09 }, - { 0x7cf00000, 0x34900000, RTL_GIGA_MAC_VER_08 }, - { 0x7cf00000, 0x24900000, RTL_GIGA_MAC_VER_08 }, - { 0x7cf00000, 0x34800000, RTL_GIGA_MAC_VER_07 }, - { 0x7cf00000, 0x24800000, RTL_GIGA_MAC_VER_07 }, - { 0x7cf00000, 0x34000000, RTL_GIGA_MAC_VER_13 }, - { 0x7cf00000, 0x34300000, RTL_GIGA_MAC_VER_10 }, - { 0x7cf00000, 0x34200000, RTL_GIGA_MAC_VER_16 }, - { 0x7c800000, 0x34800000, RTL_GIGA_MAC_VER_09 }, - { 0x7c800000, 0x24800000, RTL_GIGA_MAC_VER_09 }, - { 0x7c800000, 0x34000000, RTL_GIGA_MAC_VER_16 }, - /* FIXME: where did these entries come from ? -- FR */ - { 0xfc800000, 0x38800000, RTL_GIGA_MAC_VER_15 }, - { 0xfc800000, 0x30800000, RTL_GIGA_MAC_VER_14 }, - - /* 8110 family. */ - { 0xfc800000, 0x98000000, RTL_GIGA_MAC_VER_06 }, - { 0xfc800000, 0x18000000, RTL_GIGA_MAC_VER_05 }, - { 0xfc800000, 0x10000000, RTL_GIGA_MAC_VER_04 }, - { 0xfc800000, 0x04000000, RTL_GIGA_MAC_VER_03 }, - { 0xfc800000, 0x00800000, RTL_GIGA_MAC_VER_02 }, - { 0xfc800000, 0x00000000, RTL_GIGA_MAC_VER_01 }, - - { 0x00000000, 0x00000000, RTL_GIGA_MAC_VER_01 } /* Catch-all */ - }, *p = mac_info; - u32 reg; - - DBGP ( "rtl8169_get_mac_version\n" ); - - reg = RTL_R32(TxConfig); - while ((reg & p->mask) != p->val) - p++; - tp->mac_version = p->mac_version; - - DBG ( "tp->mac_version = %d\n", tp->mac_version ); - - if (p->mask == 0x00000000) { - DBG ( "unknown MAC (%08x)\n", reg ); - } -} - -struct phy_reg { - u16 reg; - u16 val; -}; - -static void rtl_phy_write(void *ioaddr, struct phy_reg *regs, int len) -{ - DBGP ( "rtl_phy_write\n" ); - - while (len-- > 0) { - mdio_write(ioaddr, regs->reg, regs->val); - regs++; - } -} - -static void rtl8169s_hw_phy_config(void *ioaddr) -{ - struct { - u16 regs[5]; /* Beware of bit-sign propagation */ - } phy_magic[5] = { { - { 0x0000, //w 4 15 12 0 - 0x00a1, //w 3 15 0 00a1 - 0x0008, //w 2 15 0 0008 - 0x1020, //w 1 15 0 1020 - 0x1000 } },{ //w 0 15 0 1000 - { 0x7000, //w 4 15 12 7 - 0xff41, //w 3 15 0 ff41 - 0xde60, //w 2 15 0 de60 - 0x0140, //w 1 15 0 0140 - 0x0077 } },{ //w 0 15 0 0077 - { 0xa000, //w 4 15 12 a - 0xdf01, //w 3 15 0 df01 - 0xdf20, //w 2 15 0 df20 - 0xff95, //w 1 15 0 ff95 - 0xfa00 } },{ //w 0 15 0 fa00 - { 0xb000, //w 4 15 12 b - 0xff41, //w 3 15 0 ff41 - 0xde20, //w 2 15 0 de20 - 0x0140, //w 1 15 0 0140 - 0x00bb } },{ //w 0 15 0 00bb - { 0xf000, //w 4 15 12 f - 0xdf01, //w 3 15 0 df01 - 0xdf20, //w 2 15 0 df20 - 0xff95, //w 1 15 0 ff95 - 0xbf00 } //w 0 15 0 bf00 - } - }, *p = phy_magic; - unsigned int i; - - DBGP ( "rtl8169s_hw_phy_config\n" ); - - mdio_write(ioaddr, 0x1f, 0x0001); //w 31 2 0 1 - mdio_write(ioaddr, 0x15, 0x1000); //w 21 15 0 1000 - mdio_write(ioaddr, 0x18, 0x65c7); //w 24 15 0 65c7 - rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 - - for (i = 0; i < ARRAY_SIZE(phy_magic); i++, p++) { - int val, pos = 4; - - val = (mdio_read(ioaddr, pos) & 0x0fff) | (p->regs[0] & 0xffff); - mdio_write(ioaddr, pos, val); - while (--pos >= 0) - mdio_write(ioaddr, pos, p->regs[4 - pos] & 0xffff); - rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 1); //w 4 11 11 1 - rtl8169_write_gmii_reg_bit(ioaddr, 4, 11, 0); //w 4 11 11 0 - } - mdio_write(ioaddr, 0x1f, 0x0000); //w 31 2 0 0 -} - -static void rtl8169sb_hw_phy_config(void *ioaddr) -{ - struct phy_reg phy_reg_init[] = { - { 0x1f, 0x0002 }, - { 0x01, 0x90d0 }, - { 0x1f, 0x0000 } - }; - - DBGP ( "rtl8169sb_hw_phy_config\n" ); - - rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); -} - -static void rtl8168bb_hw_phy_config(void *ioaddr) -{ - struct phy_reg phy_reg_init[] = { - { 0x10, 0xf41b }, - { 0x1f, 0x0000 } - }; - - mdio_write(ioaddr, 0x1f, 0x0001); - mdio_patch(ioaddr, 0x16, 1 << 0); - - DBGP ( "rtl8168bb_hw_phy_config\n" ); - - rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); -} - -static void rtl8168bef_hw_phy_config(void *ioaddr) -{ - struct phy_reg phy_reg_init[] = { - { 0x1f, 0x0001 }, - { 0x10, 0xf41b }, - { 0x1f, 0x0000 } - }; - - DBGP ( "rtl8168bef_hw_phy_config\n" ); - - rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); -} - -static void rtl8168cp_1_hw_phy_config(void *ioaddr) -{ - struct phy_reg phy_reg_init[] = { - { 0x1f, 0x0000 }, - { 0x1d, 0x0f00 }, - { 0x1f, 0x0002 }, - { 0x0c, 0x1ec8 }, - { 0x1f, 0x0000 } - }; - - DBGP ( "rtl8168cp_1_hw_phy_config\n" ); - - rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); -} - -static void rtl8168cp_2_hw_phy_config(void *ioaddr) -{ - struct phy_reg phy_reg_init[] = { - { 0x1f, 0x0001 }, - { 0x1d, 0x3d98 }, - { 0x1f, 0x0000 } - }; - - DBGP ( "rtl8168cp_2_hw_phy_config\n" ); - - mdio_write(ioaddr, 0x1f, 0x0000); - mdio_patch(ioaddr, 0x14, 1 << 5); - mdio_patch(ioaddr, 0x0d, 1 << 5); - - rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); -} - -static void rtl8168c_1_hw_phy_config(void *ioaddr) -{ - struct phy_reg phy_reg_init[] = { - { 0x1f, 0x0001 }, - { 0x12, 0x2300 }, - { 0x1f, 0x0002 }, - { 0x00, 0x88d4 }, - { 0x01, 0x82b1 }, - { 0x03, 0x7002 }, - { 0x08, 0x9e30 }, - { 0x09, 0x01f0 }, - { 0x0a, 0x5500 }, - { 0x0c, 0x00c8 }, - { 0x1f, 0x0003 }, - { 0x12, 0xc096 }, - { 0x16, 0x000a }, - { 0x1f, 0x0000 }, - { 0x1f, 0x0000 }, - { 0x09, 0x2000 }, - { 0x09, 0x0000 } - }; - - DBGP ( "rtl8168c_1_hw_phy_config\n" ); - - rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); - - mdio_patch(ioaddr, 0x14, 1 << 5); - mdio_patch(ioaddr, 0x0d, 1 << 5); - mdio_write(ioaddr, 0x1f, 0x0000); -} - -static void rtl8168c_2_hw_phy_config(void *ioaddr) -{ - struct phy_reg phy_reg_init[] = { - { 0x1f, 0x0001 }, - { 0x12, 0x2300 }, - { 0x03, 0x802f }, - { 0x02, 0x4f02 }, - { 0x01, 0x0409 }, - { 0x00, 0xf099 }, - { 0x04, 0x9800 }, - { 0x04, 0x9000 }, - { 0x1d, 0x3d98 }, - { 0x1f, 0x0002 }, - { 0x0c, 0x7eb8 }, - { 0x06, 0x0761 }, - { 0x1f, 0x0003 }, - { 0x16, 0x0f0a }, - { 0x1f, 0x0000 } - }; - - DBGP ( "rtl8168c_2_hw_phy_config\n" ); - - rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); - - mdio_patch(ioaddr, 0x16, 1 << 0); - mdio_patch(ioaddr, 0x14, 1 << 5); - mdio_patch(ioaddr, 0x0d, 1 << 5); - mdio_write(ioaddr, 0x1f, 0x0000); -} - -static void rtl8168c_3_hw_phy_config(void *ioaddr) -{ - struct phy_reg phy_reg_init[] = { - { 0x1f, 0x0001 }, - { 0x12, 0x2300 }, - { 0x1d, 0x3d98 }, - { 0x1f, 0x0002 }, - { 0x0c, 0x7eb8 }, - { 0x06, 0x5461 }, - { 0x1f, 0x0003 }, - { 0x16, 0x0f0a }, - { 0x1f, 0x0000 } - }; - - DBGP ( "rtl8168c_3_hw_phy_config\n" ); - - rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); - - mdio_patch(ioaddr, 0x16, 1 << 0); - mdio_patch(ioaddr, 0x14, 1 << 5); - mdio_patch(ioaddr, 0x0d, 1 << 5); - mdio_write(ioaddr, 0x1f, 0x0000); -} - -static void rtl8168c_4_hw_phy_config(void *ioaddr) -{ - DBGP ( "rtl8168c_4_hw_phy_config\n" ); - - rtl8168c_3_hw_phy_config(ioaddr); -} - -static void rtl8168d_hw_phy_config(void *ioaddr) -{ - struct phy_reg phy_reg_init_0[] = { - { 0x1f, 0x0001 }, - { 0x09, 0x2770 }, - { 0x08, 0x04d0 }, - { 0x0b, 0xad15 }, - { 0x0c, 0x5bf0 }, - { 0x1c, 0xf101 }, - { 0x1f, 0x0003 }, - { 0x14, 0x94d7 }, - { 0x12, 0xf4d6 }, - { 0x09, 0xca0f }, - { 0x1f, 0x0002 }, - { 0x0b, 0x0b10 }, - { 0x0c, 0xd1f7 }, - { 0x1f, 0x0002 }, - { 0x06, 0x5461 }, - { 0x1f, 0x0002 }, - { 0x05, 0x6662 }, - { 0x1f, 0x0000 }, - { 0x14, 0x0060 }, - { 0x1f, 0x0000 }, - { 0x0d, 0xf8a0 }, - { 0x1f, 0x0005 }, - { 0x05, 0xffc2 } - }; - - DBGP ( "rtl8168d_hw_phy_config\n" ); - - rtl_phy_write(ioaddr, phy_reg_init_0, ARRAY_SIZE(phy_reg_init_0)); - - if (mdio_read(ioaddr, 0x06) == 0xc400) { - struct phy_reg phy_reg_init_1[] = { - { 0x1f, 0x0005 }, - { 0x01, 0x0300 }, - { 0x1f, 0x0000 }, - { 0x11, 0x401c }, - { 0x16, 0x4100 }, - { 0x1f, 0x0005 }, - { 0x07, 0x0010 }, - { 0x05, 0x83dc }, - { 0x06, 0x087d }, - { 0x05, 0x8300 }, - { 0x06, 0x0101 }, - { 0x06, 0x05f8 }, - { 0x06, 0xf9fa }, - { 0x06, 0xfbef }, - { 0x06, 0x79e2 }, - { 0x06, 0x835f }, - { 0x06, 0xe0f8 }, - { 0x06, 0x9ae1 }, - { 0x06, 0xf89b }, - { 0x06, 0xef31 }, - { 0x06, 0x3b65 }, - { 0x06, 0xaa07 }, - { 0x06, 0x81e4 }, - { 0x06, 0xf89a }, - { 0x06, 0xe5f8 }, - { 0x06, 0x9baf }, - { 0x06, 0x06ae }, - { 0x05, 0x83dc }, - { 0x06, 0x8300 }, - }; - - rtl_phy_write(ioaddr, phy_reg_init_1, - ARRAY_SIZE(phy_reg_init_1)); - } - - mdio_write(ioaddr, 0x1f, 0x0000); -} - -static void rtl8102e_hw_phy_config(void *ioaddr) -{ - struct phy_reg phy_reg_init[] = { - { 0x1f, 0x0003 }, - { 0x08, 0x441d }, - { 0x01, 0x9100 }, - { 0x1f, 0x0000 } - }; - - DBGP ( "rtl8102e_hw_phy_config\n" ); - - mdio_write(ioaddr, 0x1f, 0x0000); - mdio_patch(ioaddr, 0x11, 1 << 12); - mdio_patch(ioaddr, 0x19, 1 << 13); - - rtl_phy_write(ioaddr, phy_reg_init, ARRAY_SIZE(phy_reg_init)); -} - -static void rtl_hw_phy_config(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void *ioaddr = tp->mmio_addr; - - DBGP ( "rtl_hw_phy_config\n" ); - - DBG ( "mac_version = 0x%02x\n", tp->mac_version ); - - switch (tp->mac_version) { - case RTL_GIGA_MAC_VER_01: - break; - case RTL_GIGA_MAC_VER_02: - case RTL_GIGA_MAC_VER_03: - rtl8169s_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_04: - rtl8169sb_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_07: - case RTL_GIGA_MAC_VER_08: - case RTL_GIGA_MAC_VER_09: - rtl8102e_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_11: - rtl8168bb_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_12: - rtl8168bef_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_17: - rtl8168bef_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_18: - rtl8168cp_1_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_19: - rtl8168c_1_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_20: - rtl8168c_2_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_21: - rtl8168c_3_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_22: - rtl8168c_4_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_23: - case RTL_GIGA_MAC_VER_24: - rtl8168cp_2_hw_phy_config(ioaddr); - break; - case RTL_GIGA_MAC_VER_25: - rtl8168d_hw_phy_config(ioaddr); - break; - - default: - break; - } -} - -static void rtl8169_phy_reset(struct net_device *dev __unused, - struct rtl8169_private *tp) -{ - void *ioaddr = tp->mmio_addr; - unsigned int i; - - DBGP ( "rtl8169_phy_reset\n" ); - - tp->phy_reset_enable(ioaddr); - for (i = 0; i < 100; i++) { - if (!tp->phy_reset_pending(ioaddr)) - return; - mdelay ( 1 ); - } - DBG ( "PHY reset failed.\n" ); -} - -static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp) -{ - void *ioaddr = tp->mmio_addr; - - DBGP ( "rtl8169_init_phy\n" ); - - rtl_hw_phy_config(dev); - - if (tp->mac_version <= RTL_GIGA_MAC_VER_06) { - DBG ( "Set MAC Reg C+CR Offset 0x82h = 0x01h\n" ); - RTL_W8(0x82, 0x01); - } - - pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40); - - if (tp->mac_version <= RTL_GIGA_MAC_VER_06) - pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08); - - if (tp->mac_version == RTL_GIGA_MAC_VER_02) { - DBG ( "Set MAC Reg C+CR Offset 0x82h = 0x01h\n" ); - RTL_W8(0x82, 0x01); - DBG ( "Set PHY Reg 0x0bh = 0x00h\n" ); - mdio_write(ioaddr, 0x0b, 0x0000); //w 0x0b 15 0 0 - } - - rtl8169_phy_reset(dev, tp); - - /* - * rtl8169_set_speed_xmii takes good care of the Fast Ethernet - * only 8101. Don't panic. - */ - rtl8169_set_speed(dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL); - - if ((RTL_R8(PHYstatus) & TBI_Enable)) - DBG ( "TBI auto-negotiating\n" ); -} - -static const struct rtl_cfg_info { - void (*hw_start)(struct net_device *); - unsigned int region; - unsigned int align; - u16 intr_event; - u16 napi_event; - unsigned features; -} rtl_cfg_infos [] = { - [RTL_CFG_0] = { - .hw_start = rtl_hw_start_8169, - .region = 1, - .align = 0, - .intr_event = SYSErr | LinkChg | RxOverflow | - RxFIFOOver | TxErr | TxOK | RxOK | RxErr, - .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow, - .features = RTL_FEATURE_GMII - }, - [RTL_CFG_1] = { - .hw_start = rtl_hw_start_8168, - .region = 2, - .align = 8, - .intr_event = SYSErr | LinkChg | RxOverflow | - TxErr | TxOK | RxOK | RxErr, - .napi_event = TxErr | TxOK | RxOK | RxOverflow, - .features = RTL_FEATURE_GMII - }, - [RTL_CFG_2] = { - .hw_start = rtl_hw_start_8101, - .region = 2, - .align = 8, - .intr_event = SYSErr | LinkChg | RxOverflow | PCSTimeout | - RxFIFOOver | TxErr | TxOK | RxOK | RxErr, - .napi_event = RxFIFOOver | TxErr | TxOK | RxOK | RxOverflow, - } -}; - -static void rtl8169_hw_reset(void *ioaddr) -{ - DBGP ( "rtl8169_hw_reset\n" ); - - /* Disable interrupts */ - rtl8169_irq_mask_and_ack(ioaddr); - - /* Reset the chipset */ - RTL_W8(ChipCmd, CmdReset); - - /* PCI commit */ - RTL_R8(ChipCmd); -} - -static void rtl_set_rx_tx_config_registers(struct rtl8169_private *tp) -{ - void *ioaddr = tp->mmio_addr; - u32 cfg = rtl8169_rx_config; - - DBGP ( "rtl_set_rx_tx_config_registers\n" ); - - cfg |= (RTL_R32(RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask); - RTL_W32(RxConfig, cfg); - - /* Set DMA burst size and Interframe Gap Time */ - RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) | - (InterFrameGap << TxInterFrameGapShift)); -} - -static void rtl_soft_reset ( struct net_device *dev ) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void *ioaddr = tp->mmio_addr; - unsigned int i; - - DBGP ( "rtl_hw_soft_reset\n" ); - - /* Soft reset the chip. */ - RTL_W8(ChipCmd, CmdReset); - - /* Check that the chip has finished the reset. */ - for (i = 0; i < 100; i++) { - if ((RTL_R8(ChipCmd) & CmdReset) == 0) - break; - mdelay ( 1 ); - } - - if ( i == 100 ) { - DBG ( "Reset Failed! (> 100 iterations)\n" ); - } -} - -static void rtl_hw_start ( struct net_device *dev ) -{ - struct rtl8169_private *tp = netdev_priv ( dev ); - - DBGP ( "rtl_hw_start\n" ); - - /* Soft reset NIC */ - rtl_soft_reset ( dev ); - - tp->hw_start ( dev ); -} - -static void rtl_set_rx_tx_desc_registers(struct rtl8169_private *tp, - void *ioaddr) -{ - DBGP ( "rtl_set_rx_tx_desc_registers\n" ); - - /* - * Magic spell: some iop3xx ARM board needs the TxDescAddrHigh - * register to be written before TxDescAddrLow to work. - * Switching from MMIO to I/O access fixes the issue as well. - */ - RTL_W32 ( TxDescStartAddrHigh, 0 ); - RTL_W32 ( TxDescStartAddrLow, virt_to_bus ( tp->tx_base ) ); - RTL_W32 ( RxDescAddrHigh, 0 ); - RTL_W32 ( RxDescAddrLow, virt_to_bus ( tp->rx_base ) ); -} - -static u16 rtl_rw_cpluscmd(void *ioaddr) -{ - u16 cmd; - - DBGP ( "rtl_rw_cpluscmd\n" ); - - cmd = RTL_R16(CPlusCmd); - RTL_W16(CPlusCmd, cmd); - return cmd; -} - -static void rtl_set_rx_max_size(void *ioaddr) -{ - DBGP ( "rtl_set_rx_max_size\n" ); - - RTL_W16 ( RxMaxSize, RX_BUF_SIZE ); -} - -static void rtl8169_set_magic_reg(void *ioaddr, unsigned mac_version) -{ - struct { - u32 mac_version; - u32 clk; - u32 val; - } cfg2_info [] = { - { RTL_GIGA_MAC_VER_05, PCI_Clock_33MHz, 0x000fff00 }, // 8110SCd - { RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff }, - { RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe - { RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff } - }, *p = cfg2_info; - unsigned int i; - u32 clk; - - DBGP ( "rtl8169_set_magic_reg\n" ); - - clk = RTL_R8(Config2) & PCI_Clock_66MHz; - for (i = 0; i < ARRAY_SIZE(cfg2_info); i++, p++) { - if ((p->mac_version == mac_version) && (p->clk == clk)) { - RTL_W32(0x7c, p->val); - break; - } - } -} - -static void rtl_set_rx_mode ( struct net_device *netdev ) -{ - struct rtl8169_private *tp = netdev_priv ( netdev ); - void *ioaddr = tp->mmio_addr; - u32 tmp; - - DBGP ( "rtl_set_rx_mode\n" ); - - /* Accept all Multicast Packets */ - - RTL_W32 ( MAR0 + 0, 0xffffffff ); - RTL_W32 ( MAR0 + 4, 0xffffffff ); - - tmp = rtl8169_rx_config | AcceptBroadcast | AcceptMulticast | AcceptMyPhys | - ( RTL_R32 ( RxConfig ) & rtl_chip_info[tp->chipset].RxConfigMask ); - - RTL_W32 ( RxConfig, tmp ); -} - -static void rtl_hw_start_8169(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void *ioaddr = tp->mmio_addr; - struct pci_device *pdev = tp->pci_dev; - - DBGP ( "rtl_hw_start_8169\n" ); - - if (tp->mac_version == RTL_GIGA_MAC_VER_05) { - RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) | PCIMulRW); - pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x08); - } - - RTL_W8(Cfg9346, Cfg9346_Unlock); - - if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || - (tp->mac_version == RTL_GIGA_MAC_VER_02) || - (tp->mac_version == RTL_GIGA_MAC_VER_03) || - (tp->mac_version == RTL_GIGA_MAC_VER_04)) - RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); - - RTL_W8(EarlyTxThres, EarlyTxThld); - - rtl_set_rx_max_size(ioaddr); - - if ((tp->mac_version == RTL_GIGA_MAC_VER_01) || - (tp->mac_version == RTL_GIGA_MAC_VER_02) || - (tp->mac_version == RTL_GIGA_MAC_VER_03) || - (tp->mac_version == RTL_GIGA_MAC_VER_04)) - rtl_set_rx_tx_config_registers(tp); - - tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW; - - if ((tp->mac_version == RTL_GIGA_MAC_VER_02) || - (tp->mac_version == RTL_GIGA_MAC_VER_03)) { - DBG ( "Set MAC Reg C+CR Offset 0xE0. " - "Bit-3 and bit-14 MUST be 1\n" ); - tp->cp_cmd |= (1 << 14); - } - - RTL_W16(CPlusCmd, tp->cp_cmd); - - rtl8169_set_magic_reg(ioaddr, tp->mac_version); - - /* - * Undocumented corner. Supposedly: - * (TxTimer << 12) | (TxPackets << 8) | (RxTimer << 4) | RxPackets - */ - RTL_W16(IntrMitigate, 0x0000); - - rtl_set_rx_tx_desc_registers(tp, ioaddr); - - if ((tp->mac_version != RTL_GIGA_MAC_VER_01) && - (tp->mac_version != RTL_GIGA_MAC_VER_02) && - (tp->mac_version != RTL_GIGA_MAC_VER_03) && - (tp->mac_version != RTL_GIGA_MAC_VER_04)) { - RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); - rtl_set_rx_tx_config_registers(tp); - } - - RTL_W8(Cfg9346, Cfg9346_Lock); - - /* Initially a 10 us delay. Turned it into a PCI commit. - FR */ - RTL_R8(IntrMask); - - RTL_W32(RxMissed, 0); - - rtl_set_rx_mode(dev); - - /* no early-rx interrupts */ - RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); - - // RTL_W16(IntrMask, tp->intr_event); -} - -static void rtl_tx_performance_tweak(struct pci_device *pdev, u16 force) -{ - struct net_device *dev = pci_get_drvdata(pdev); - struct rtl8169_private *tp = netdev_priv(dev); - int cap = tp->pcie_cap; - - DBGP ( "rtl_tx_performance_tweak\n" ); - - if (cap) { - u16 ctl; - - pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl); - ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force; - pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl); - } -} - -static void rtl_csi_access_enable(void *ioaddr) -{ - u32 csi; - - DBGP ( "rtl_csi_access_enable\n" ); - - csi = rtl_csi_read(ioaddr, 0x070c) & 0x00ffffff; - rtl_csi_write(ioaddr, 0x070c, csi | 0x27000000); -} - -struct ephy_info { - unsigned int offset; - u16 mask; - u16 bits; -}; - -static void rtl_ephy_init(void *ioaddr, struct ephy_info *e, int len) -{ - u16 w; - - DBGP ( "rtl_ephy_init\n" ); - - while (len-- > 0) { - w = (rtl_ephy_read(ioaddr, e->offset) & ~e->mask) | e->bits; - rtl_ephy_write(ioaddr, e->offset, w); - e++; - } -} - -static void rtl_disable_clock_request(struct pci_device *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - struct rtl8169_private *tp = netdev_priv(dev); - int cap = tp->pcie_cap; - - DBGP ( "rtl_disable_clock_request\n" ); - - if (cap) { - u16 ctl; - - pci_read_config_word(pdev, cap + PCI_EXP_LNKCTL, &ctl); - ctl &= ~PCI_EXP_LNKCTL_CLKREQ_EN; - pci_write_config_word(pdev, cap + PCI_EXP_LNKCTL, ctl); - } -} - -#define R8168_CPCMD_QUIRK_MASK (\ - EnableBist | \ - Mac_dbgo_oe | \ - Force_half_dup | \ - Force_rxflow_en | \ - Force_txflow_en | \ - Cxpl_dbg_sel | \ - ASF | \ - PktCntrDisable | \ - Mac_dbgo_sel) - -static void rtl_hw_start_8168bb(void *ioaddr, struct pci_device *pdev) -{ - DBGP ( "rtl_hw_start_8168bb\n" ); - - RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); - - RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK); - - rtl_tx_performance_tweak(pdev, - (0x5 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN); -} - -static void rtl_hw_start_8168bef(void *ioaddr, struct pci_device *pdev) -{ - DBGP ( "rtl_hw_start_8168bef\n" ); - - rtl_hw_start_8168bb(ioaddr, pdev); - - RTL_W8(EarlyTxThres, EarlyTxThld); - - RTL_W8(Config4, RTL_R8(Config4) & ~(1 << 0)); -} - -static void __rtl_hw_start_8168cp(void *ioaddr, struct pci_device *pdev) -{ - DBGP ( "__rtl_hw_start_8168cp\n" ); - - RTL_W8(Config1, RTL_R8(Config1) | Speed_down); - - RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); - - rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); - - rtl_disable_clock_request(pdev); - - RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK); -} - -static void rtl_hw_start_8168cp_1(void *ioaddr, struct pci_device *pdev) -{ - static struct ephy_info e_info_8168cp[] = { - { 0x01, 0, 0x0001 }, - { 0x02, 0x0800, 0x1000 }, - { 0x03, 0, 0x0042 }, - { 0x06, 0x0080, 0x0000 }, - { 0x07, 0, 0x2000 } - }; - - DBGP ( "rtl_hw_start_8168cp_1\n" ); - - rtl_csi_access_enable(ioaddr); - - rtl_ephy_init(ioaddr, e_info_8168cp, ARRAY_SIZE(e_info_8168cp)); - - __rtl_hw_start_8168cp(ioaddr, pdev); -} - -static void rtl_hw_start_8168cp_2(void *ioaddr, struct pci_device *pdev) -{ - DBGP ( "rtl_hw_start_8168cp_2\n" ); - - rtl_csi_access_enable(ioaddr); - - RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); - - rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); - - RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK); -} - -static void rtl_hw_start_8168cp_3(void *ioaddr, struct pci_device *pdev) -{ - DBGP ( "rtl_hw_start_8168cp_3\n" ); - - rtl_csi_access_enable(ioaddr); - - RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); - - /* Magic. */ - RTL_W8(DBG_REG, 0x20); - - RTL_W8(EarlyTxThres, EarlyTxThld); - - rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); - - RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK); -} - -static void rtl_hw_start_8168c_1(void *ioaddr, struct pci_device *pdev) -{ - static struct ephy_info e_info_8168c_1[] = { - { 0x02, 0x0800, 0x1000 }, - { 0x03, 0, 0x0002 }, - { 0x06, 0x0080, 0x0000 } - }; - - DBGP ( "rtl_hw_start_8168c_1\n" ); - - rtl_csi_access_enable(ioaddr); - - RTL_W8(DBG_REG, 0x06 | FIX_NAK_1 | FIX_NAK_2); - - rtl_ephy_init(ioaddr, e_info_8168c_1, ARRAY_SIZE(e_info_8168c_1)); - - __rtl_hw_start_8168cp(ioaddr, pdev); -} - -static void rtl_hw_start_8168c_2(void *ioaddr, struct pci_device *pdev) -{ - static struct ephy_info e_info_8168c_2[] = { - { 0x01, 0, 0x0001 }, - { 0x03, 0x0400, 0x0220 } - }; - - DBGP ( "rtl_hw_start_8168c_2\n" ); - - rtl_csi_access_enable(ioaddr); - - rtl_ephy_init(ioaddr, e_info_8168c_2, ARRAY_SIZE(e_info_8168c_2)); - - __rtl_hw_start_8168cp(ioaddr, pdev); -} - -static void rtl_hw_start_8168c_3(void *ioaddr, struct pci_device *pdev) -{ - DBGP ( "rtl_hw_start_8168c_3\n" ); - - rtl_hw_start_8168c_2(ioaddr, pdev); -} - -static void rtl_hw_start_8168c_4(void *ioaddr, struct pci_device *pdev) -{ - DBGP ( "rtl_hw_start_8168c_4\n" ); - - rtl_csi_access_enable(ioaddr); - - __rtl_hw_start_8168cp(ioaddr, pdev); -} - -static void rtl_hw_start_8168d(void *ioaddr, struct pci_device *pdev) -{ - DBGP ( "rtl_hw_start_8168d\n" ); - - rtl_csi_access_enable(ioaddr); - - rtl_disable_clock_request(pdev); - - RTL_W8(EarlyTxThres, EarlyTxThld); - - rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); - - RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R8168_CPCMD_QUIRK_MASK); -} - -static void rtl_hw_start_8168(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void *ioaddr = tp->mmio_addr; - struct pci_device *pdev = tp->pci_dev; - - DBGP ( "rtl_hw_start_8168\n" ); - - RTL_W8(Cfg9346, Cfg9346_Unlock); - - RTL_W8(EarlyTxThres, EarlyTxThld); - - rtl_set_rx_max_size(ioaddr); - - tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1; - - RTL_W16(CPlusCmd, tp->cp_cmd); - - RTL_W16(IntrMitigate, 0x5151); - - /* Work around for RxFIFO overflow. */ - if (tp->mac_version == RTL_GIGA_MAC_VER_11) { - tp->intr_event |= RxFIFOOver | PCSTimeout; - tp->intr_event &= ~RxOverflow; - } - - rtl_set_rx_tx_desc_registers(tp, ioaddr); - - rtl_set_rx_mode(dev); - - RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) | - (InterFrameGap << TxInterFrameGapShift)); - - RTL_R8(IntrMask); - - switch (tp->mac_version) { - case RTL_GIGA_MAC_VER_11: - rtl_hw_start_8168bb(ioaddr, pdev); - break; - - case RTL_GIGA_MAC_VER_12: - case RTL_GIGA_MAC_VER_17: - rtl_hw_start_8168bef(ioaddr, pdev); - break; - - case RTL_GIGA_MAC_VER_18: - rtl_hw_start_8168cp_1(ioaddr, pdev); - break; - - case RTL_GIGA_MAC_VER_19: - rtl_hw_start_8168c_1(ioaddr, pdev); - break; - - case RTL_GIGA_MAC_VER_20: - rtl_hw_start_8168c_2(ioaddr, pdev); - break; - - case RTL_GIGA_MAC_VER_21: - rtl_hw_start_8168c_3(ioaddr, pdev); - break; - - case RTL_GIGA_MAC_VER_22: - rtl_hw_start_8168c_4(ioaddr, pdev); - break; - - case RTL_GIGA_MAC_VER_23: - rtl_hw_start_8168cp_2(ioaddr, pdev); - break; - - case RTL_GIGA_MAC_VER_24: - rtl_hw_start_8168cp_3(ioaddr, pdev); - break; - - case RTL_GIGA_MAC_VER_25: - rtl_hw_start_8168d(ioaddr, pdev); - break; - - default: - DBG ( "Unknown chipset (mac_version = %d).\n", - tp->mac_version ); - break; - } - - RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); - - RTL_W8(Cfg9346, Cfg9346_Lock); - - RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000); - - // RTL_W16(IntrMask, tp->intr_event); -} - -#define R810X_CPCMD_QUIRK_MASK (\ - EnableBist | \ - Mac_dbgo_oe | \ - Force_half_dup | \ - Force_half_dup | \ - Force_txflow_en | \ - Cxpl_dbg_sel | \ - ASF | \ - PktCntrDisable | \ - PCIDAC | \ - PCIMulRW) - -static void rtl_hw_start_8102e_1(void *ioaddr, struct pci_device *pdev) -{ - static struct ephy_info e_info_8102e_1[] = { - { 0x01, 0, 0x6e65 }, - { 0x02, 0, 0x091f }, - { 0x03, 0, 0xc2f9 }, - { 0x06, 0, 0xafb5 }, - { 0x07, 0, 0x0e00 }, - { 0x19, 0, 0xec80 }, - { 0x01, 0, 0x2e65 }, - { 0x01, 0, 0x6e65 } - }; - u8 cfg1; - - DBGP ( "rtl_hw_start_8102e_1\n" ); - - rtl_csi_access_enable(ioaddr); - - RTL_W8(DBG_REG, FIX_NAK_1); - - rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); - - RTL_W8(Config1, - LEDS1 | LEDS0 | Speed_down | MEMMAP | IOMAP | VPD | PMEnable); - RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); - - cfg1 = RTL_R8(Config1); - if ((cfg1 & LEDS0) && (cfg1 & LEDS1)) - RTL_W8(Config1, cfg1 & ~LEDS0); - - RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK); - - rtl_ephy_init(ioaddr, e_info_8102e_1, ARRAY_SIZE(e_info_8102e_1)); -} - -static void rtl_hw_start_8102e_2(void *ioaddr, struct pci_device *pdev) -{ - DBGP ( "rtl_hw_start_8102e_2\n" ); - - rtl_csi_access_enable(ioaddr); - - rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT); - - RTL_W8(Config1, MEMMAP | IOMAP | VPD | PMEnable); - RTL_W8(Config3, RTL_R8(Config3) & ~Beacon_en); - - RTL_W16(CPlusCmd, RTL_R16(CPlusCmd) & ~R810X_CPCMD_QUIRK_MASK); -} - -static void rtl_hw_start_8102e_3(void *ioaddr, struct pci_device *pdev) -{ - DBGP ( "rtl_hw_start_8102e_3\n" ); - - rtl_hw_start_8102e_2(ioaddr, pdev); - - rtl_ephy_write(ioaddr, 0x03, 0xc2f9); -} - -static void rtl_hw_start_8101(struct net_device *dev) -{ - struct rtl8169_private *tp = netdev_priv(dev); - void *ioaddr = tp->mmio_addr; - struct pci_device *pdev = tp->pci_dev; - - DBGP ( "rtl_hw_start_8101\n" ); - - if ((tp->mac_version == RTL_GIGA_MAC_VER_13) || - (tp->mac_version == RTL_GIGA_MAC_VER_16)) { - int cap = tp->pcie_cap; - - if (cap) { - pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, - PCI_EXP_DEVCTL_NOSNOOP_EN); - } - } - - switch (tp->mac_version) { - case RTL_GIGA_MAC_VER_07: - rtl_hw_start_8102e_1(ioaddr, pdev); - break; - - case RTL_GIGA_MAC_VER_08: - rtl_hw_start_8102e_3(ioaddr, pdev); - break; - - case RTL_GIGA_MAC_VER_09: - rtl_hw_start_8102e_2(ioaddr, pdev); - break; - } - - RTL_W8(Cfg9346, Cfg9346_Unlock); - - RTL_W8(EarlyTxThres, EarlyTxThld); - - rtl_set_rx_max_size(ioaddr); - - tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW; - - RTL_W16(CPlusCmd, tp->cp_cmd); - - RTL_W16(IntrMitigate, 0x0000); - - rtl_set_rx_tx_desc_registers(tp, ioaddr); - - RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); - rtl_set_rx_tx_config_registers(tp); - - RTL_W8(Cfg9346, Cfg9346_Lock); - - RTL_R8(IntrMask); - - rtl_set_rx_mode(dev); - - RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb); - - RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xf000); - - // RTL_W16(IntrMask, tp->intr_event); -} - -/*** iPXE API Support Routines ***/ - -/** - * setup_tx_resources - allocate tx resources (descriptors) - * - * @v tp Driver private storage - * - * @ret rc Returns 0 on success, negative on failure - **/ -static int -rtl8169_setup_tx_resources ( struct rtl8169_private *tp ) -{ - DBGP ( "rtl8169_setup_tx_resources\n" ); - - tp->tx_base = malloc_dma ( R8169_TX_RING_BYTES, TX_RING_ALIGN ); - - if ( ! tp->tx_base ) { - return -ENOMEM; - } - - memset ( tp->tx_base, 0, R8169_TX_RING_BYTES ); - - DBG ( "tp->tx_base = %#08lx\n", virt_to_bus ( tp->tx_base ) ); - - tp->tx_fill_ctr = 0; - tp->tx_curr = 0; - tp->tx_tail = 0; - - return 0; -} - -static void -rtl8169_process_tx_packets ( struct net_device *netdev ) -{ - struct rtl8169_private *tp = netdev_priv ( netdev ); - - uint32_t tx_status; - struct TxDesc *tx_curr_desc; - - DBGP ( "rtl8169_process_tx_packets\n" ); - - while ( tp->tx_tail != tp->tx_curr ) { - - tx_curr_desc = tp->tx_base + tp->tx_tail; - - tx_status = tx_curr_desc->opts1; - - DBG2 ( "Before DescOwn check tx_status: %#08x\n", tx_status ); - - /* if the packet at tx_tail is not owned by hardware it is for us */ - if ( tx_status & DescOwn ) - break; - - DBG ( "Transmitted packet.\n" ); - DBG ( "tp->tx_fill_ctr = %d\n", tp->tx_fill_ctr ); - DBG ( "tp->tx_tail = %d\n", tp->tx_tail ); - DBG ( "tp->tx_curr = %d\n", tp->tx_curr ); - DBG ( "tx_status = %d\n", tx_status ); - DBG ( "tx_curr_desc = %#08lx\n", virt_to_bus ( tx_curr_desc ) ); - - /* Pass packet to core for processing */ - netdev_tx_complete ( netdev, tp->tx_iobuf[tp->tx_tail] ); - - memset ( tx_curr_desc, 0, sizeof ( *tx_curr_desc ) ); - - /* Decrement count of used descriptors */ - tp->tx_fill_ctr--; - - /* Increment sent packets index */ - tp->tx_tail = ( tp->tx_tail + 1 ) % NUM_TX_DESC; - } -} - -static void -rtl8169_free_tx_resources ( struct rtl8169_private *tp ) -{ - DBGP ( "rtl8169_free_tx_resources\n" ); - - free_dma ( tp->tx_base, R8169_TX_RING_BYTES ); -} - -static void -rtl8169_populate_rx_descriptor ( struct rtl8169_private *tp, struct RxDesc *rx_desc, uint32_t index ) -{ - DBGP ( "rtl8169_populate_rx_descriptor\n" ); - - DBG ( "Populating rx descriptor %d\n", index ); - - memset ( rx_desc, 0, sizeof ( *rx_desc ) ); - - rx_desc->addr_hi = 0; - rx_desc->addr_lo = virt_to_bus ( tp->rx_iobuf[index]->data ); - rx_desc->opts2 = 0; - rx_desc->opts1 = ( index == ( NUM_RX_DESC - 1 ) ? RingEnd : 0 ) | - RX_BUF_SIZE; - rx_desc->opts1 |= DescOwn; -} - -/** - * Refill descriptor ring - * - * @v netdev Net device - */ -static void rtl8169_refill_rx_ring ( struct rtl8169_private *tp ) -{ - struct RxDesc *rx_curr_desc; - int i; - - DBGP ( "rtl8169_refill_rx_ring\n" ); - - for ( i = 0; i < NUM_RX_DESC; i++ ) { - - rx_curr_desc = ( tp->rx_base ) + i; - - /* Don't touch descriptors owned by the NIC */ - if ( rx_curr_desc->opts1 & DescOwn ) - continue; - - /* Don't touch descriptors with iobufs, they still need to be - processed by the poll routine */ - if ( tp->rx_iobuf[tp->rx_curr] != NULL ) - continue; - - /** If we can't get an iobuf for this descriptor - try again later (next poll). - */ - if ( ! ( tp->rx_iobuf[i] = alloc_iob ( RX_BUF_SIZE ) ) ) { - DBG ( "Refill rx ring failed!!\n" ); - break; - } - - rtl8169_populate_rx_descriptor ( tp, rx_curr_desc, i ); - } -} - -/** - * setup_rx_resources - allocate Rx resources (Descriptors) - * - * @v tp: Driver private structure - * - * @ret rc Returns 0 on success, negative on failure - * - **/ -static int -rtl8169_setup_rx_resources ( struct rtl8169_private *tp ) -{ - DBGP ( "rtl8169_setup_rx_resources\n" ); - - tp->rx_base = malloc_dma ( R8169_RX_RING_BYTES, RX_RING_ALIGN ); - - DBG ( "tp->rx_base = %#08lx\n", virt_to_bus ( tp->rx_base ) ); - - if ( ! tp->rx_base ) { - return -ENOMEM; - } - memset ( tp->rx_base, 0, R8169_RX_RING_BYTES ); - - rtl8169_refill_rx_ring ( tp ); - - tp->rx_curr = 0; - - return 0; -} - -static void -rtl8169_process_rx_packets ( struct net_device *netdev ) -{ - struct rtl8169_private *tp = netdev_priv ( netdev ); - uint32_t rx_status; - uint16_t rx_len; - struct RxDesc *rx_curr_desc; - int i; - - DBGP ( "rtl8169_process_rx_packets\n" ); - - for ( i = 0; i < NUM_RX_DESC; i++ ) { - - rx_curr_desc = tp->rx_base + tp->rx_curr; - - rx_status = rx_curr_desc->opts1; - - DBG2 ( "Before DescOwn check rx_status: %#08x\n", rx_status ); - - /* Hardware still owns the descriptor */ - if ( rx_status & DescOwn ) - break; - - /* We own the descriptor, but it has not been refilled yet */ - if ( tp->rx_iobuf[tp->rx_curr] == NULL ) - break; - - rx_len = rx_status & 0x3fff; - - DBG ( "Received packet.\n" ); - DBG ( "tp->rx_curr = %d\n", tp->rx_curr ); - DBG ( "rx_len = %d\n", rx_len ); - DBG ( "rx_status = %#08x\n", rx_status ); - DBG ( "rx_curr_desc = %#08lx\n", virt_to_bus ( rx_curr_desc ) ); - - if ( rx_status & RxRES ) { - - netdev_rx_err ( netdev, tp->rx_iobuf[tp->rx_curr], -EINVAL ); - - DBG ( "rtl8169_poll: Corrupted packet received!\n" - " rx_status: %#08x\n", rx_status ); - - } else { - - /* Adjust size of the iobuf to reflect received data */ - iob_put ( tp->rx_iobuf[tp->rx_curr], rx_len ); - - /* Add this packet to the receive queue. */ - netdev_rx ( netdev, tp->rx_iobuf[tp->rx_curr] ); - } - - /* Invalidate this iobuf and descriptor */ - tp->rx_iobuf[tp->rx_curr] = NULL; - memset ( rx_curr_desc, 0, sizeof ( *rx_curr_desc ) ); - - /* Update pointer to next available rx descriptor */ - tp->rx_curr = ( tp->rx_curr + 1 ) % NUM_RX_DESC; - } - rtl8169_refill_rx_ring ( tp ); -} - -static void -rtl8169_free_rx_resources ( struct rtl8169_private *tp ) -{ - int i; - - DBGP ( "rtl8169_free_rx_resources\n" ); - - free_dma ( tp->rx_base, R8169_RX_RING_BYTES ); - - for ( i = 0; i < NUM_RX_DESC; i++ ) { - free_iob ( tp->rx_iobuf[i] ); - tp->rx_iobuf[i] = NULL; - } -} - -static void rtl8169_irq_enable ( struct rtl8169_private *tp ) -{ - void *ioaddr = tp->mmio_addr; - - DBGP ( "rtl8169_irq_enable\n" ); - - RTL_W16 ( IntrMask, tp->intr_event ); -} - -static void rtl8169_irq_disable ( struct rtl8169_private *tp ) -{ - void *ioaddr = tp->mmio_addr; - - DBGP ( "rtl8169_irq_disable\n" ); - - RTL_W16 ( IntrMask, 0x0000 ); -} - -/*** iPXE Core API Routines ***/ - -/** - * open - Called when a network interface is made active - * - * @v netdev network interface device structure - * @ret rc Return status code, 0 on success, negative value on failure - * - **/ -static int -rtl8169_open ( struct net_device *netdev ) -{ - struct rtl8169_private *tp = netdev_priv ( netdev ); - void *ioaddr = tp->mmio_addr; - int rc; - - DBGP ( "rtl8169_open\n" ); - - /* allocate transmit descriptors */ - rc = rtl8169_setup_tx_resources ( tp ); - if ( rc ) { - DBG ( "Error setting up TX resources!\n" ); - goto err_setup_tx; - } - - /* allocate receive descriptors */ - rc = rtl8169_setup_rx_resources ( tp ); - if ( rc ) { - DBG ( "Error setting up RX resources!\n" ); - goto err_setup_rx; - } - - rtl_hw_start ( netdev ); - - DBG ( "TxDescStartAddrHigh = %#08lx\n", RTL_R32 ( TxDescStartAddrHigh ) ); - DBG ( "TxDescStartAddrLow = %#08lx\n", RTL_R32 ( TxDescStartAddrLow ) ); - DBG ( "RxDescAddrHigh = %#08lx\n", RTL_R32 ( RxDescAddrHigh ) ); - DBG ( "RxDescAddrLow = %#08lx\n", RTL_R32 ( RxDescAddrLow ) ); - - return 0; - -err_setup_rx: - rtl8169_free_tx_resources ( tp ); -err_setup_tx: - rtl8169_hw_reset ( ioaddr ); - - return rc; -} - -/** - * transmit - Transmit a packet - * - * @v netdev Network device - * @v iobuf I/O buffer - * - * @ret rc Returns 0 on success, negative on failure - */ -static int -rtl8169_transmit ( struct net_device *netdev, struct io_buffer *iobuf ) -{ - struct rtl8169_private *tp = netdev_priv ( netdev ); - void *ioaddr = tp->mmio_addr; - uint32_t tx_len = iob_len ( iobuf ); - - struct TxDesc *tx_curr_desc; - - DBGP ("rtl8169_transmit\n"); - - if ( tp->tx_fill_ctr == NUM_TX_DESC ) { - DBG ("TX overflow\n"); - return -ENOBUFS; - } - - /** - * The rtl8169 family automatically pads short packets to a - * minimum size, but if it did not, like some older cards, - * we could do: - * iob_pad ( iobuf, ETH_ZLEN ); - */ - - /* Save pointer to this iobuf we have been given to transmit so - we can pass it to netdev_tx_complete() later */ - tp->tx_iobuf[tp->tx_curr] = iobuf; - - tx_curr_desc = tp->tx_base + tp->tx_curr; - - DBG ( "tp->tx_fill_ctr = %d\n", tp->tx_fill_ctr ); - DBG ( "tp->tx_curr = %d\n", tp->tx_curr ); - DBG ( "tx_curr_desc = %#08lx\n", virt_to_bus ( tx_curr_desc ) ); - DBG ( "iobuf->data = %#08lx\n", virt_to_bus ( iobuf->data ) ); - DBG ( "tx_len = %d\n", tx_len ); - - /* Configure current descriptor to transmit supplied packet */ - tx_curr_desc->addr_hi = 0; - tx_curr_desc->addr_lo = virt_to_bus ( iobuf->data ); - tx_curr_desc->opts2 = 0; - tx_curr_desc->opts1 = FirstFrag | LastFrag | - ( tp->tx_curr == ( NUM_TX_DESC - 1 ) ? RingEnd : 0 ) | - tx_len; - - /* Mark descriptor as owned by NIC */ - tx_curr_desc->opts1 |= DescOwn; - - DBG ( "tx_curr_desc->opts1 = %#08x\n", tx_curr_desc->opts1 ); - DBG ( "tx_curr_desc->opts2 = %#08x\n", tx_curr_desc->opts2 ); - DBG ( "tx_curr_desc->addr_hi = %#08x\n", tx_curr_desc->addr_hi ); - DBG ( "tx_curr_desc->addr_lo = %#08x\n", tx_curr_desc->addr_lo ); - - RTL_W8 ( TxPoll, NPQ ); /* set polling bit */ - - /* Point to next free descriptor */ - tp->tx_curr = ( tp->tx_curr + 1 ) % NUM_TX_DESC; - - /* Increment number of tx descriptors in use */ - tp->tx_fill_ctr++; - - return 0; -} - -/** - * poll - Poll for received packets - * - * @v netdev Network device - */ -static void -rtl8169_poll ( struct net_device *netdev ) -{ - struct rtl8169_private *tp = netdev_priv ( netdev ); - void *ioaddr = tp->mmio_addr; - - uint16_t intr_status; - uint16_t intr_mask; - - DBGP ( "rtl8169_poll\n" ); - - intr_status = RTL_R16 ( IntrStatus ); - intr_mask = RTL_R16 ( IntrMask ); - - DBG2 ( "rtl8169_poll (before): intr_mask = %#04x intr_status = %#04x\n", - intr_mask, intr_status ); - - RTL_W16 ( IntrStatus, 0xffff ); - - /* hotplug / major error / no more work / shared irq */ - if ( intr_status == 0xffff ) - return; - - /* Process transmitted packets */ - rtl8169_process_tx_packets ( netdev ); - - /* Process received packets */ - rtl8169_process_rx_packets ( netdev ); -} - -/** - * close - Disable network interface - * - * @v netdev network interface device structure - * - **/ -static void -rtl8169_close ( struct net_device *netdev ) -{ - struct rtl8169_private *tp = netdev_priv ( netdev ); - void *ioaddr = tp->mmio_addr; - - DBGP ( "r8169_close\n" ); - - rtl8169_hw_reset ( ioaddr ); - - rtl8169_free_tx_resources ( tp ); - rtl8169_free_rx_resources ( tp ); -} - -/** - * irq - enable or Disable interrupts - * - * @v netdev network adapter - * @v action requested interrupt action - * - **/ -static void -rtl8169_irq ( struct net_device *netdev, int action ) -{ - struct rtl8169_private *tp = netdev_priv ( netdev ); - - DBGP ( "rtl8169_irq\n" ); - - switch ( action ) { - case 0 : - rtl8169_irq_disable ( tp ); - break; - default : - rtl8169_irq_enable ( tp ); - break; - } -} - -static struct net_device_operations rtl8169_operations = { - .open = rtl8169_open, - .transmit = rtl8169_transmit, - .poll = rtl8169_poll, - .close = rtl8169_close, - .irq = rtl8169_irq, -}; - -/** - * probe - Initial configuration of NIC - * - * @v pci PCI device - * @v id PCI IDs - * - * @ret rc Return status code - **/ -static int -rtl8169_probe ( struct pci_device *pdev ) -{ - int i, rc; - struct net_device *netdev; - struct rtl8169_private *tp; - void *ioaddr; - - const struct rtl_cfg_info *cfg = rtl_cfg_infos + pdev->id->driver_data; - - DBGP ( "rtl8169_probe\n" ); - - DBG ( "id->vendor = %#04x, id->device = %#04x\n", - pdev->id->vendor, pdev->id->device ); - - DBG ( "cfg->intr_event = %#04x\n", cfg->intr_event ); - - rc = -ENOMEM; - - /* Allocate net device ( also allocates memory for netdev->priv - and makes netdev-priv point to it ) - */ - netdev = alloc_etherdev ( sizeof ( *tp ) ); - - if ( ! netdev ) - goto err_alloc_etherdev; - - /* Associate driver-specific network operations with - generic network device layer - */ - netdev_init ( netdev, &rtl8169_operations ); - - /* Associate this network device with the given PCI device */ - pci_set_drvdata ( pdev, netdev ); - netdev->dev = &pdev->dev; - - /* Initialize driver private storage */ - tp = netdev_priv ( netdev ); - memset ( tp, 0, ( sizeof ( *tp ) ) ); - - tp->pci_dev = pdev; - tp->irqno = pdev->irq; - tp->netdev = netdev; - tp->intr_event = cfg->intr_event; - tp->cp_cmd = PCIMulRW; - - tp->hw_start = cfg->hw_start; - - rc = -EIO; - - adjust_pci_device ( pdev ); - - /* ioremap MMIO region */ - ioaddr = ioremap ( pdev->membase, R8169_REGS_SIZE ); - - if ( ! ioaddr ) { - DBG ( "cannot remap MMIO\n" ); - rc = -EIO; - goto err_ioremap; - } - - tp->mmio_addr = ioaddr; - - tp->pcie_cap = pci_find_capability ( pdev, PCI_CAP_ID_EXP ); - if ( tp->pcie_cap ) { - DBG ( "PCI Express capability\n" ); - } else { - DBG ( "No PCI Express capability\n" ); - } - - /* Mask interrupts just in case */ - rtl8169_irq_mask_and_ack ( ioaddr ); - - /* Soft reset NIC */ - rtl_soft_reset ( netdev ); - - /* Identify chip attached to board */ - rtl8169_get_mac_version ( tp, ioaddr ); - - for ( i = 0; (u32) i < ARRAY_SIZE ( rtl_chip_info ); i++ ) { - if ( tp->mac_version == rtl_chip_info[i].mac_version ) - break; - } - if ( i == ARRAY_SIZE(rtl_chip_info ) ) { - /* Unknown chip: assume array element #0, original RTL-8169 */ - DBG ( "Unknown chip version, assuming %s\n", rtl_chip_info[0].name ); - i = 0; - } - tp->chipset = i; - - if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) && - (RTL_R8(PHYstatus) & TBI_Enable)) { - tp->set_speed = rtl8169_set_speed_tbi; - tp->phy_reset_enable = rtl8169_tbi_reset_enable; - tp->phy_reset_pending = rtl8169_tbi_reset_pending; - tp->link_ok = rtl8169_tbi_link_ok; - - tp->phy_1000_ctrl_reg = ADVERTISE_1000FULL; /* Implied by TBI */ - } else { - tp->set_speed = rtl8169_set_speed_xmii; - tp->phy_reset_enable = rtl8169_xmii_reset_enable; - tp->phy_reset_pending = rtl8169_xmii_reset_pending; - tp->link_ok = rtl8169_xmii_link_ok; - } - - /* Get MAC address */ - for ( i = 0; i < MAC_ADDR_LEN; i++ ) - netdev->hw_addr[i] = RTL_R8 ( MAC0 + i ); - - DBG ( "%s\n", eth_ntoa ( netdev->hw_addr ) ); - - rtl8169_init_phy ( netdev, tp ); - - if ( ( rc = register_netdev ( netdev ) ) != 0 ) - goto err_register; - - /* Mark as link up; we don't yet handle link state */ - netdev_link_up ( netdev ); - - DBG ( "rtl8169_probe succeeded!\n" ); - - /* No errors, return success */ - return 0; - -/* Error return paths */ -err_register: -err_ioremap: - netdev_put ( netdev ); -err_alloc_etherdev: - return rc; -} - -/** - * remove - Device Removal Routine - * - * @v pdev PCI device information struct - * - **/ -static void -rtl8169_remove ( struct pci_device *pdev ) -{ - struct net_device *netdev = pci_get_drvdata ( pdev ); - struct rtl8169_private *tp = netdev_priv ( netdev ); - void *ioaddr = tp->mmio_addr; - - DBGP ( "rtl8169_remove\n" ); - - rtl8169_hw_reset ( ioaddr ); - - unregister_netdev ( netdev ); - netdev_nullify ( netdev ); - netdev_put ( netdev ); -} - -static struct pci_device_id rtl8169_nics[] = { - PCI_ROM(0x10ec, 0x8129, "rtl8169-0x8129", "rtl8169-0x8129", RTL_CFG_0), - PCI_ROM(0x10ec, 0x8136, "rtl8169-0x8136", "rtl8169-0x8136", RTL_CFG_2), - PCI_ROM(0x10ec, 0x8167, "rtl8169-0x8167", "rtl8169-0x8167", RTL_CFG_0), - PCI_ROM(0x10ec, 0x8168, "rtl8169-0x8168", "rtl8169-0x8168", RTL_CFG_1), - PCI_ROM(0x10ec, 0x8169, "rtl8169-0x8169", "rtl8169-0x8169", RTL_CFG_0), - PCI_ROM(0x1186, 0x4300, "rtl8169-0x4300", "rtl8169-0x4300", RTL_CFG_0), - PCI_ROM(0x1259, 0xc107, "rtl8169-0xc107", "rtl8169-0xc107", RTL_CFG_0), - PCI_ROM(0x16ec, 0x0116, "rtl8169-0x0116", "rtl8169-0x0116", RTL_CFG_0), - PCI_ROM(0x1737, 0x1032, "rtl8169-0x1032", "rtl8169-0x1032", RTL_CFG_0), - PCI_ROM(0x0001, 0x8168, "rtl8169-0x8168", "rtl8169-0x8168", RTL_CFG_2), -}; - -struct pci_driver rtl8169_driver __pci_driver = { - .ids = rtl8169_nics, - .id_count = ( sizeof ( rtl8169_nics ) / sizeof ( rtl8169_nics[0] ) ), - .probe = rtl8169_probe, - .remove = rtl8169_remove, -}; - -/* - * Local variables: - * c-basic-offset: 8 - * c-indent-level: 8 - * tab-width: 8 - * End: - */ diff --git a/src/drivers/net/r8169.h b/src/drivers/net/r8169.h deleted file mode 100644 index bcf3df0..0000000 --- a/src/drivers/net/r8169.h +++ /dev/null @@ -1,486 +0,0 @@ -/* - * Copyright (c) 2008 Marty Connor <mdc@etherboot.org> - * Copyright (c) 2008 Entity Cyber, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * This driver is based on rtl8169 data sheets and work by: - * - * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw> - * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com> - * Copyright (c) a lot of people too. Please respect their work. - * - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -#ifndef _R8169_H_ -#define _R8169_H_ - -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) - -/** FIXME: include/linux/pci_regs.h has these PCI regs, maybe - we need such a file in iPXE? -**/ -#define PCI_EXP_DEVCTL 8 /* Device Control */ -#define PCI_EXP_DEVCTL_READRQ 0x7000 /* Max_Read_Request_Size */ -#define PCI_EXP_LNKCTL 16 /* Link Control */ -#define PCI_EXP_LNKCTL_CLKREQ_EN 0x100 /* Enable clkreq */ -#define PCI_EXP_DEVCTL_NOSNOOP_EN 0x0800 /* Enable No Snoop */ - -/** FIXME: update mii.h in src/include/mii.h from Linux sources - so we don't have to include these definitiions. -**/ -/* The forced speed, 10Mb, 100Mb, gigabit, 2.5Gb, 10GbE. */ -#define SPEED_10 10 -#define SPEED_100 100 -#define SPEED_1000 1000 -#define SPEED_2500 2500 -#define SPEED_10000 10000 - -/* Duplex, half or full. */ -#define DUPLEX_HALF 0x00 -#define DUPLEX_FULL 0x01 - -#define AUTONEG_DISABLE 0x00 -#define AUTONEG_ENABLE 0x01 - -/* MAC address length */ -#define MAC_ADDR_LEN 6 - -#define MAX_READ_REQUEST_SHIFT 12 -#define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */ -#define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ -#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */ -#define EarlyTxThld 0x3F /* 0x3F means NO early transmit */ -#define RxPacketMaxSize 0x3FE8 /* 16K - 1 - ETH_HLEN - VLAN - CRC... */ -#define SafeMtu 0x1c20 /* ... actually life sucks beyond ~7k */ -#define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */ - -#define R8169_REGS_SIZE 256 -#define R8169_NAPI_WEIGHT 64 -#define NUM_TX_DESC 8 /* Number of Tx descriptor registers */ -#define NUM_RX_DESC 8 /* Number of Rx descriptor registers */ -#define RX_BUF_SIZE 1536 /* Rx Buffer size */ -#define R8169_TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) -#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) - -#define TX_RING_ALIGN 256 -#define RX_RING_ALIGN 256 - -#define RTL8169_TX_TIMEOUT (6*HZ) -#define RTL8169_PHY_TIMEOUT (10*HZ) - -#define RTL_EEPROM_SIG cpu_to_le32(0x8129) -#define RTL_EEPROM_SIG_MASK cpu_to_le32(0xffff) -#define RTL_EEPROM_SIG_ADDR 0x0000 - -/* write/read MMIO register */ -#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg)) -#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg)) -#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg)) -#define RTL_R8(reg) readb (ioaddr + (reg)) -#define RTL_R16(reg) readw (ioaddr + (reg)) -#define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg))) - -enum mac_version { - RTL_GIGA_MAC_VER_01 = 0x01, // 8169 - RTL_GIGA_MAC_VER_02 = 0x02, // 8169S - RTL_GIGA_MAC_VER_03 = 0x03, // 8110S - RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB - RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd - RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe - RTL_GIGA_MAC_VER_07 = 0x07, // 8102e - RTL_GIGA_MAC_VER_08 = 0x08, // 8102e - RTL_GIGA_MAC_VER_09 = 0x09, // 8102e - RTL_GIGA_MAC_VER_10 = 0x0a, // 8101e - RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb - RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be - RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb - RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ? - RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ? - RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec - RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf - RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP - RTL_GIGA_MAC_VER_19 = 0x13, // 8168C - RTL_GIGA_MAC_VER_20 = 0x14, // 8168C - RTL_GIGA_MAC_VER_21 = 0x15, // 8168C - RTL_GIGA_MAC_VER_22 = 0x16, // 8168C - RTL_GIGA_MAC_VER_23 = 0x17, // 8168CP - RTL_GIGA_MAC_VER_24 = 0x18, // 8168CP - RTL_GIGA_MAC_VER_25 = 0x19, // 8168D -}; - -#define _R(NAME,MAC,MASK) \ - { .name = NAME, .mac_version = MAC, .RxConfigMask = MASK } - -static const struct { - const char *name; - u8 mac_version; - u32 RxConfigMask; /* Clears the bits supported by this chip */ -} 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 -}; -#undef _R - -enum cfg_version { - RTL_CFG_0 = 0x00, - RTL_CFG_1, - RTL_CFG_2 -}; - -#if 0 -/** Device Table from Linux Driver **/ -static struct pci_device_id rtl8169_pci_tbl[] = { - { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8129), 0, 0, RTL_CFG_0 }, - { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8136), 0, 0, RTL_CFG_2 }, - { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8167), 0, 0, RTL_CFG_0 }, - { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8168), 0, 0, RTL_CFG_1 }, - { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8169), 0, 0, RTL_CFG_0 }, - { PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4300), 0, 0, RTL_CFG_0 }, - { PCI_DEVICE(PCI_VENDOR_ID_AT, 0xc107), 0, 0, RTL_CFG_0 }, - { PCI_DEVICE(0x16ec, 0x0116), 0, 0, RTL_CFG_0 }, - { PCI_VENDOR_ID_LINKSYS, 0x1032, - PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 }, - { 0x0001, 0x8168, - PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 }, - {0,}, -}; -#endif - -enum rtl_registers { - MAC0 = 0, /* Ethernet hardware address. */ - MAC4 = 4, - MAR0 = 8, /* Multicast filter. */ - CounterAddrLow = 0x10, - CounterAddrHigh = 0x14, - TxDescStartAddrLow = 0x20, - TxDescStartAddrHigh = 0x24, - TxHDescStartAddrLow = 0x28, - TxHDescStartAddrHigh = 0x2c, - FLASH = 0x30, - ERSR = 0x36, - ChipCmd = 0x37, - TxPoll = 0x38, - IntrMask = 0x3c, - IntrStatus = 0x3e, - TxConfig = 0x40, - RxConfig = 0x44, - RxMissed = 0x4c, - Cfg9346 = 0x50, - Config0 = 0x51, - Config1 = 0x52, - Config2 = 0x53, - Config3 = 0x54, - Config4 = 0x55, - Config5 = 0x56, - MultiIntr = 0x5c, - PHYAR = 0x60, - PHYstatus = 0x6c, - RxMaxSize = 0xda, - CPlusCmd = 0xe0, - IntrMitigate = 0xe2, - RxDescAddrLow = 0xe4, - RxDescAddrHigh = 0xe8, - EarlyTxThres = 0xec, - FuncEvent = 0xf0, - FuncEventMask = 0xf4, - FuncPresetState = 0xf8, - FuncForceEvent = 0xfc, -}; - -enum rtl8110_registers { - TBICSR = 0x64, - TBI_ANAR = 0x68, - TBI_LPAR = 0x6a, -}; - -enum rtl8168_8101_registers { - CSIDR = 0x64, - CSIAR = 0x68, -#define CSIAR_FLAG 0x80000000 -#define CSIAR_WRITE_CMD 0x80000000 -#define CSIAR_BYTE_ENABLE 0x0f -#define CSIAR_BYTE_ENABLE_SHIFT 12 -#define CSIAR_ADDR_MASK 0x0fff - - EPHYAR = 0x80, -#define EPHYAR_FLAG 0x80000000 -#define EPHYAR_WRITE_CMD 0x80000000 -#define EPHYAR_REG_MASK 0x1f -#define EPHYAR_REG_SHIFT 16 -#define EPHYAR_DATA_MASK 0xffff - DBG_REG = 0xd1, -#define FIX_NAK_1 (1 << 4) -#define FIX_NAK_2 (1 << 3) -}; - -enum rtl_register_content { - /* InterruptStatusBits */ - SYSErr = 0x8000, - PCSTimeout = 0x4000, - SWInt = 0x0100, - TxDescUnavail = 0x0080, - RxFIFOOver = 0x0040, - LinkChg = 0x0020, - RxOverflow = 0x0010, - TxErr = 0x0008, - TxOK = 0x0004, - RxErr = 0x0002, - RxOK = 0x0001, - - /* RxStatusDesc */ - RxFOVF = (1 << 23), - RxRWT = (1 << 22), - RxRES = (1 << 21), - RxRUNT = (1 << 20), - RxCRC = (1 << 19), - - /* ChipCmdBits */ - CmdReset = 0x10, - CmdRxEnb = 0x08, - CmdTxEnb = 0x04, - RxBufEmpty = 0x01, - - /* TXPoll register p.5 */ - HPQ = 0x80, /* Poll cmd on the high prio queue */ - NPQ = 0x40, /* Poll cmd on the low prio queue */ - FSWInt = 0x01, /* Forced software interrupt */ - - /* Cfg9346Bits */ - Cfg9346_Lock = 0x00, - Cfg9346_Unlock = 0xc0, - - /* rx_mode_bits */ - AcceptErr = 0x20, - AcceptRunt = 0x10, - AcceptBroadcast = 0x08, - AcceptMulticast = 0x04, - AcceptMyPhys = 0x02, - AcceptAllPhys = 0x01, - - /* RxConfigBits */ - RxCfgFIFOShift = 13, - RxCfgDMAShift = 8, - - /* TxConfigBits */ - TxInterFrameGapShift = 24, - TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ - - /* Config1 register p.24 */ - LEDS1 = (1 << 7), - LEDS0 = (1 << 6), - MSIEnable = (1 << 5), /* Enable Message Signaled Interrupt */ - Speed_down = (1 << 4), - MEMMAP = (1 << 3), - IOMAP = (1 << 2), - VPD = (1 << 1), - PMEnable = (1 << 0), /* Power Management Enable */ - - /* Config2 register p. 25 */ - PCI_Clock_66MHz = 0x01, - PCI_Clock_33MHz = 0x00, - - /* Config3 register p.25 */ - MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */ - LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */ - Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */ - - /* Config5 register p.27 */ - BWF = (1 << 6), /* Accept Broadcast wakeup frame */ - MWF = (1 << 5), /* Accept Multicast wakeup frame */ - UWF = (1 << 4), /* Accept Unicast wakeup frame */ - LanWake = (1 << 1), /* LanWake enable/disable */ - PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */ - - /* TBICSR p.28 */ - TBIReset = 0x80000000, - TBILoopback = 0x40000000, - TBINwEnable = 0x20000000, - TBINwRestart = 0x10000000, - TBILinkOk = 0x02000000, - TBINwComplete = 0x01000000, - - /* CPlusCmd p.31 */ - EnableBist = (1 << 15), // 8168 8101 - Mac_dbgo_oe = (1 << 14), // 8168 8101 - Normal_mode = (1 << 13), // unused - Force_half_dup = (1 << 12), // 8168 8101 - Force_rxflow_en = (1 << 11), // 8168 8101 - Force_txflow_en = (1 << 10), // 8168 8101 - Cxpl_dbg_sel = (1 << 9), // 8168 8101 - ASF = (1 << 8), // 8168 8101 - PktCntrDisable = (1 << 7), // 8168 8101 - Mac_dbgo_sel = 0x001c, // 8168 - RxVlan = (1 << 6), - RxChkSum = (1 << 5), - PCIDAC = (1 << 4), - PCIMulRW = (1 << 3), - INTT_0 = 0x0000, // 8168 - INTT_1 = 0x0001, // 8168 - INTT_2 = 0x0002, // 8168 - INTT_3 = 0x0003, // 8168 - - /* rtl8169_PHYstatus */ - TBI_Enable = 0x80, - TxFlowCtrl = 0x40, - RxFlowCtrl = 0x20, - _1000bpsF = 0x10, - _100bps = 0x08, - _10bps = 0x04, - LinkStatus = 0x02, - FullDup = 0x01, - - /* _TBICSRBit */ - TBILinkOK = 0x02000000, - - /* DumpCounterCommand */ - CounterDump = 0x8, -}; - -enum desc_status_bit { - 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 */ - - /* 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 */ - - /* Rx private */ - PID1 = (1 << 18), /* Protocol ID bit 1/2 */ - PID0 = (1 << 17), /* Protocol ID bit 2/2 */ - -#define RxProtoUDP (PID1) -#define RxProtoTCP (PID0) -#define RxProtoIP (PID1 | PID0) -#define RxProtoMask RxProtoIP - - IPFail = (1 << 16), /* IP checksum failed */ - UDPFail = (1 << 15), /* UDP/IP checksum failed */ - TCPFail = (1 << 14), /* TCP/IP checksum failed */ - RxVlanTag = (1 << 16), /* VLAN tag available */ -}; - -#define RsvdMask 0x3fffc000 - -struct TxDesc { - volatile uint32_t opts1; - volatile uint32_t opts2; - volatile uint32_t addr_lo; - volatile uint32_t addr_hi; -}; - -struct RxDesc { - volatile uint32_t opts1; - volatile uint32_t opts2; - volatile uint32_t addr_lo; - volatile uint32_t addr_hi; -}; - -enum features { - RTL_FEATURE_WOL = (1 << 0), - RTL_FEATURE_MSI = (1 << 1), - RTL_FEATURE_GMII = (1 << 2), -}; - -static void rtl_hw_start_8169(struct net_device *); -static void rtl_hw_start_8168(struct net_device *); -static void rtl_hw_start_8101(struct net_device *); - -struct rtl8169_private { - - struct pci_device *pci_dev; - struct net_device *netdev; - uint8_t *hw_addr; - void *mmio_addr; - uint32_t irqno; - - int chipset; - int mac_version; - u16 intr_event; - - struct io_buffer *tx_iobuf[NUM_TX_DESC]; - struct io_buffer *rx_iobuf[NUM_RX_DESC]; - - struct TxDesc *tx_base; - struct RxDesc *rx_base; - - uint32_t tx_curr; - uint32_t rx_curr; - - uint32_t tx_tail; - - uint32_t tx_fill_ctr; - - u16 cp_cmd; - - int phy_auto_nego_reg; - int phy_1000_ctrl_reg; - - int ( *set_speed ) (struct net_device *, u8 autoneg, u16 speed, u8 duplex ); - void ( *phy_reset_enable ) ( void *ioaddr ); - void ( *hw_start ) ( struct net_device * ); - unsigned int ( *phy_reset_pending ) ( void *ioaddr ); - unsigned int ( *link_ok ) ( void *ioaddr ); - - int pcie_cap; - - unsigned features; - -}; - -static const unsigned int rtl8169_rx_config = - (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift); - -#endif /* _R8169_H_ */ - -/* - * Local variables: - * c-basic-offset: 8 - * c-indent-level: 8 - * tab-width: 8 - * End: - */ diff --git a/src/drivers/net/realtek.c b/src/drivers/net/realtek.c new file mode 100644 index 0000000..eb16cb7 --- /dev/null +++ b/src/drivers/net/realtek.c @@ -0,0 +1,779 @@ +/* + * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. + * + * (EEPROM code originally implemented for rtl8139.c) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <stdint.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> +#include <byteswap.h> +#include <ipxe/netdevice.h> +#include <ipxe/ethernet.h> +#include <ipxe/if_ether.h> +#include <ipxe/iobuf.h> +#include <ipxe/malloc.h> +#include <ipxe/pci.h> +#include <ipxe/nvs.h> +#include <ipxe/threewire.h> +#include <ipxe/bitbash.h> +#include <ipxe/mii.h> +#include "realtek.h" + +/** @file + * + * Realtek 10/100/1000 network card driver + * + * Based on the following datasheets: + * + * http://www.datasheetarchive.com/dl/Datasheets-8/DSA-153536.pdf + * http://www.datasheetarchive.com/indexdl/Datasheet-028/DSA00494723.pdf + */ + +/****************************************************************************** + * + * EEPROM interface + * + ****************************************************************************** + */ + +/** Pin mapping for SPI bit-bashing interface */ +static const uint8_t realtek_eeprom_bits[] = { + [SPI_BIT_SCLK] = RTL_9346CR_EESK, + [SPI_BIT_MOSI] = RTL_9346CR_EEDI, + [SPI_BIT_MISO] = RTL_9346CR_EEDO, + [SPI_BIT_SS(0)] = ( RTL_9346CR_EECS | RTL_9346CR_EEM1 ), +}; + +/** + * Read input bit + * + * @v basher Bit-bashing interface + * @v bit_id Bit number + * @ret zero Input is a logic 0 + * @ret non-zero Input is a logic 1 + */ +static int realtek_spi_read_bit ( struct bit_basher *basher, + unsigned int bit_id ) { + struct realtek_nic *rtl = container_of ( basher, struct realtek_nic, + spibit.basher ); + uint8_t mask = realtek_eeprom_bits[bit_id]; + uint8_t reg; + + reg = readb ( rtl->regs + RTL_9346CR ); + return ( reg & mask ); +} + +/** + * Set/clear output bit + * + * @v basher Bit-bashing interface + * @v bit_id Bit number + * @v data Value to write + */ +static void realtek_spi_write_bit ( struct bit_basher *basher, + unsigned int bit_id, unsigned long data ) { + struct realtek_nic *rtl = container_of ( basher, struct realtek_nic, + spibit.basher ); + uint8_t mask = realtek_eeprom_bits[bit_id]; + uint8_t reg; + + reg = readb ( rtl->regs + RTL_9346CR ); + reg &= ~mask; + reg |= ( data & mask ); + writeb ( reg, rtl->regs + RTL_9346CR ); +} + +/** SPI bit-bashing interface */ +static struct bit_basher_operations realtek_basher_ops = { + .read = realtek_spi_read_bit, + .write = realtek_spi_write_bit, +}; + +/** + * Initialise EEPROM + * + * @v netdev Network device + */ +static void realtek_init_eeprom ( struct net_device *netdev ) { + struct realtek_nic *rtl = netdev->priv; + + /* Initialise SPI bit-bashing interface */ + rtl->spibit.basher.op = &realtek_basher_ops; + rtl->spibit.bus.mode = SPI_MODE_THREEWIRE; + init_spi_bit_basher ( &rtl->spibit ); + + /* Detect EEPROM type and initialise three-wire device */ + if ( readl ( rtl->regs + RTL_RCR ) & RTL_RCR_9356SEL ) { + DBGC ( rtl, "REALTEK %p EEPROM is a 93C56\n", rtl ); + init_at93c56 ( &rtl->eeprom, 16 ); + } else { + DBGC ( rtl, "REALTEK %p EEPROM is a 93C46\n", rtl ); + init_at93c46 ( &rtl->eeprom, 16 ); + } + rtl->eeprom.bus = &rtl->spibit.bus; + + /* Initialise space for non-volatile options, if available + * + * We use offset 0x40 (i.e. address 0x20), length 0x40. This + * block is marked as VPD in the Realtek datasheets, so we use + * it only if we detect that the card is not supporting VPD. + */ + if ( readb ( rtl->regs + RTL_CONFIG1 ) & RTL_CONFIG1_VPD ) { + DBGC ( rtl, "REALTEK %p EEPROM in use for VPD; cannot use " + "for options\n", rtl ); + } else { + nvo_init ( &rtl->nvo, &rtl->eeprom.nvs, RTL_EEPROM_VPD, + RTL_EEPROM_VPD_LEN, NULL, &netdev->refcnt ); + } +} + +/****************************************************************************** + * + * MII interface + * + ****************************************************************************** + */ + +/** + * Read from MII register + * + * @v mii MII interface + * @v reg Register address + * @ret value Data read, or negative error + */ +static int realtek_mii_read ( struct mii_interface *mii, unsigned int reg ) { + struct realtek_nic *rtl = container_of ( mii, struct realtek_nic, mii ); + unsigned int i; + uint32_t value; + + /* Initiate read */ + writel ( RTL_PHYAR_VALUE ( 0, reg, 0 ), rtl->regs + RTL_PHYAR ); + + /* Wait for read to complete */ + for ( i = 0 ; i < RTL_MII_MAX_WAIT_US ; i++ ) { + + /* If read is not complete, delay 1us and retry */ + value = readl ( rtl->regs + RTL_PHYAR ); + if ( ! ( value & RTL_PHYAR_FLAG ) ) { + udelay ( 1 ); + continue; + } + + /* Return register value */ + return ( RTL_PHYAR_DATA ( value ) ); + } + + DBGC ( rtl, "REALTEK %p timed out waiting for MII read\n", rtl ); + return -ETIMEDOUT; +} + +/** + * Write to MII register + * + * @v mii MII interface + * @v reg Register address + * @v data Data to write + * @ret rc Return status code + */ +static int realtek_mii_write ( struct mii_interface *mii, unsigned int reg, + unsigned int data) { + struct realtek_nic *rtl = container_of ( mii, struct realtek_nic, mii ); + unsigned int i; + + /* Initiate write */ + writel ( RTL_PHYAR_VALUE ( RTL_PHYAR_FLAG, reg, data ), + rtl->regs + RTL_PHYAR ); + + /* Wait for write to complete */ + for ( i = 0 ; i < RTL_MII_MAX_WAIT_US ; i++ ) { + + /* If write is not complete, delay 1us and retry */ + if ( readl ( rtl->regs + RTL_PHYAR ) & RTL_PHYAR_FLAG ) { + udelay ( 1 ); + continue; + } + + return 0; + } + + DBGC ( rtl, "REALTEK %p timed out waiting for MII write\n", rtl ); + return -ETIMEDOUT; +} + +/** Realtek MII operations */ +static struct mii_operations realtek_mii_operations = { + .read = realtek_mii_read, + .write = realtek_mii_write, +}; + +/****************************************************************************** + * + * Device reset + * + ****************************************************************************** + */ + +/** + * Reset hardware + * + * @v rtl Realtek device + * @ret rc Return status code + */ +static int realtek_reset ( struct realtek_nic *rtl ) { + unsigned int i; + + /* Issue reset */ + writeb ( RTL_CR_RST, rtl->regs + RTL_CR ); + + /* Wait for reset to complete */ + for ( i = 0 ; i < RTL_RESET_MAX_WAIT_MS ; i++ ) { + + /* If reset is not complete, delay 1ms and retry */ + if ( readb ( rtl->regs + RTL_CR ) & RTL_CR_RST ) { + mdelay ( 1 ); + continue; + } + + /* Enable PCI Dual Address Cycle (for 64-bit systems) */ + writew ( ( RTL_CPCR_DAC | RTL_CPCR_MULRW ), + rtl->regs + RTL_CPCR ); + + return 0; + } + + DBGC ( rtl, "REALTEK %p timed out waiting for reset\n", rtl ); + return -ETIMEDOUT; +} + +/****************************************************************************** + * + * Link state + * + ****************************************************************************** + */ + +/** + * Check link state + * + * @v netdev Network device + */ +static void realtek_check_link ( struct net_device *netdev ) { + struct realtek_nic *rtl = netdev->priv; + + if ( readb ( rtl->regs + RTL_PHYSTATUS ) & RTL_PHYSTATUS_LINKSTS ) { + netdev_link_up ( netdev ); + } else { + netdev_link_down ( netdev ); + } +} + +/****************************************************************************** + * + * Network device interface + * + ****************************************************************************** + */ + +/** + * Create descriptor ring + * + * @v rtl Realtek device + * @v ring Descriptor ring + * @ret rc Return status code + */ +static int realtek_create_ring ( struct realtek_nic *rtl, + struct realtek_ring *ring ) { + physaddr_t address; + + /* Allocate descriptor ring */ + ring->desc = malloc_dma ( ring->len, RTL_RING_ALIGN ); + if ( ! ring->desc ) + return -ENOMEM; + + /* Initialise descriptor ring */ + memset ( ring->desc, 0, ring->len ); + + /* Program ring address */ + address = virt_to_bus ( ring->desc ); + writel ( ( address & 0xffffffffUL ), rtl->regs + ring->reg ); + if ( sizeof ( physaddr_t ) > sizeof ( uint32_t ) ) { + writel ( ( ( ( uint64_t ) address ) >> 32 ), + rtl->regs + ring->reg + 4 ); + } + DBGC ( rtl, "REALTEK %p ring %02x is at [%08llx,%08llx)\n", + rtl, ring->reg, ( ( unsigned long long ) address ), + ( ( unsigned long long ) address + ring->len ) ); + + return 0; +} + +/** + * Destroy descriptor ring + * + * @v rtl Realtek device + * @v ring Descriptor ring + */ +static void realtek_destroy_ring ( struct realtek_nic *rtl, + struct realtek_ring *ring ) { + + /* Clear ring address */ + writel ( 0, rtl->regs + ring->reg ); + writel ( 0, rtl->regs + ring->reg + 4 ); + + /* Free descriptor ring */ + free_dma ( ring->desc, ring->len ); + ring->desc = NULL; + ring->prod = 0; + ring->cons = 0; +} + +/** + * Refill receive descriptor ring + * + * @v rtl Realtek device + */ +static void realtek_refill_rx ( struct realtek_nic *rtl ) { + struct realtek_descriptor *rx; + struct io_buffer *iobuf; + unsigned int rx_idx; + physaddr_t address; + int is_last; + + while ( ( rtl->rx.prod - rtl->rx.cons ) < RTL_NUM_RX_DESC ) { + + /* Allocate I/O buffer */ + iobuf = alloc_iob ( RTL_RX_MAX_LEN ); + if ( ! iobuf ) { + /* Wait for next refill */ + return; + } + + /* Get next receive descriptor */ + rx_idx = ( rtl->rx.prod++ % RTL_NUM_RX_DESC ); + is_last = ( rx_idx == ( RTL_NUM_RX_DESC - 1 ) ); + rx = &rtl->rx.desc[rx_idx]; + + /* Populate receive descriptor */ + address = virt_to_bus ( iobuf->data ); + rx->address = cpu_to_le64 ( address ); + rx->length = RTL_RX_MAX_LEN; + wmb(); + rx->flags = ( cpu_to_le16 ( RTL_DESC_OWN ) | + ( is_last ? cpu_to_le16 ( RTL_DESC_EOR ) : 0 ) ); + wmb(); + + /* Record I/O buffer */ + assert ( rtl->rx_iobuf[rx_idx] == NULL ); + rtl->rx_iobuf[rx_idx] = iobuf; + + DBGC2 ( rtl, "REALTEK %p RX %d is [%llx,%llx)\n", rtl, rx_idx, + ( ( unsigned long long ) address ), + ( ( unsigned long long ) address + RTL_RX_MAX_LEN ) ); + } +} + +/** + * Open network device + * + * @v netdev Network device + * @ret rc Return status code + */ +static int realtek_open ( struct net_device *netdev ) { + struct realtek_nic *rtl = netdev->priv; + uint32_t rcr; + int rc; + + /* Create transmit descriptor ring */ + if ( ( rc = realtek_create_ring ( rtl, &rtl->tx ) ) != 0 ) + goto err_create_tx; + + /* Create receive descriptor ring */ + if ( ( rc = realtek_create_ring ( rtl, &rtl->rx ) ) != 0 ) + goto err_create_rx; + + /* Configure MTU */ + writew ( RTL_RX_MAX_LEN, rtl->regs + RTL_RMS ); + + /* Accept all packets */ + writel ( 0xffffffffUL, rtl->regs + RTL_MAR0 ); + writel ( 0xffffffffUL, rtl->regs + RTL_MAR4 ); + rcr = readl ( rtl->regs + RTL_RCR ); + writel ( ( rcr | RTL_RCR_AB | RTL_RCR_AM | RTL_RCR_APM | RTL_RCR_AAP ), + rtl->regs + RTL_RCR ); + + /* Fill receive ring */ + realtek_refill_rx ( rtl ); + + /* Enable transmitter and receiver */ + writeb ( ( RTL_CR_TE | RTL_CR_RE ), rtl->regs + RTL_CR ); + + return 0; + + realtek_destroy_ring ( rtl, &rtl->rx ); + err_create_rx: + realtek_destroy_ring ( rtl, &rtl->tx ); + err_create_tx: + return rc; +} + +/** + * Close network device + * + * @v netdev Network device + */ +static void realtek_close ( struct net_device *netdev ) { + struct realtek_nic *rtl = netdev->priv; + unsigned int i; + + /* Disable receiver and transmitter */ + writeb ( 0, rtl->regs + RTL_CR ); + + /* Destroy receive descriptor ring */ + realtek_destroy_ring ( rtl, &rtl->rx ); + + /* Discard any unused receive buffers */ + for ( i = 0 ; i < RTL_NUM_RX_DESC ; i++ ) { + if ( rtl->rx_iobuf[i] ) + free_iob ( rtl->rx_iobuf[i] ); + rtl->rx_iobuf[i] = NULL; + } + + /* Destroy transmit descriptor ring */ + realtek_destroy_ring ( rtl, &rtl->tx ); +} + +/** + * Transmit packet + * + * @v netdev Network device + * @v iobuf I/O buffer + * @ret rc Return status code + */ +static int realtek_transmit ( struct net_device *netdev, + struct io_buffer *iobuf ) { + struct realtek_nic *rtl = netdev->priv; + struct realtek_descriptor *tx; + unsigned int tx_idx; + physaddr_t address; + int is_last; + + /* Get next transmit descriptor */ + if ( ( rtl->tx.prod - rtl->tx.cons ) >= RTL_NUM_TX_DESC ) { + DBGC ( rtl, "REALTEK %p out of transmit descriptors\n", rtl ); + return -ENOBUFS; + } + tx_idx = ( rtl->tx.prod++ % RTL_NUM_TX_DESC ); + is_last = ( tx_idx == ( RTL_NUM_TX_DESC - 1 ) ); + tx = &rtl->tx.desc[tx_idx]; + + /* Populate transmit descriptor */ + address = virt_to_bus ( iobuf->data ); + tx->address = cpu_to_le64 ( address ); + tx->length = cpu_to_le16 ( iob_len ( iobuf ) ); + wmb(); + tx->flags = ( cpu_to_le16 ( RTL_DESC_OWN | RTL_DESC_FS | RTL_DESC_LS ) | + ( is_last ? cpu_to_le16 ( RTL_DESC_EOR ) : 0 ) ); + wmb(); + + /* Notify card that there are packets ready to transmit */ + writeb ( RTL_TPPOLL_NPQ, rtl->regs + RTL_TPPOLL ); + + DBGC2 ( rtl, "REALTEK %p TX %d is [%llx,%llx)\n", rtl, tx_idx, + ( ( unsigned long long ) address ), + ( ( unsigned long long ) address + iob_len ( iobuf ) ) ); + + return 0; +} + +/** + * Poll for completed packets + * + * @v netdev Network device + */ +static void realtek_poll_tx ( struct net_device *netdev ) { + struct realtek_nic *rtl = netdev->priv; + struct realtek_descriptor *tx; + unsigned int tx_idx; + + /* Check for completed packets */ + while ( rtl->tx.cons != rtl->tx.prod ) { + + /* Get next transmit descriptor */ + tx_idx = ( rtl->tx.cons % RTL_NUM_TX_DESC ); + tx = &rtl->tx.desc[tx_idx]; + + /* Stop if descriptor is still in use */ + if ( tx->flags & cpu_to_le16 ( RTL_DESC_OWN ) ) + return; + + DBGC2 ( rtl, "REALTEK %p TX %d complete\n", rtl, tx_idx ); + + /* Complete TX descriptor */ + netdev_tx_complete_next ( netdev ); + rtl->tx.cons++; + } +} + +/** + * Poll for received packets + * + * @v netdev Network device + */ +static void realtek_poll_rx ( struct net_device *netdev ) { + struct realtek_nic *rtl = netdev->priv; + struct realtek_descriptor *rx; + struct io_buffer *iobuf; + unsigned int rx_idx; + size_t len; + + /* Check for received packets */ + while ( rtl->rx.cons != rtl->rx.prod ) { + + /* Get next receive descriptor */ + rx_idx = ( rtl->rx.cons % RTL_NUM_RX_DESC ); + rx = &rtl->rx.desc[rx_idx]; + + /* Stop if descriptor is still in use */ + if ( rx->flags & cpu_to_le16 ( RTL_DESC_OWN ) ) + return; + + /* Populate I/O buffer */ + iobuf = rtl->rx_iobuf[rx_idx]; + rtl->rx_iobuf[rx_idx] = NULL; + len = ( le16_to_cpu ( rx->length ) & RTL_DESC_SIZE_MASK ); + iob_put ( iobuf, ( len - 4 /* strip CRC */ ) ); + + DBGC2 ( rtl, "REALTEK %p RX %d complete (length %zd)\n", + rtl, rx_idx, len ); + + /* Hand off to network stack */ + if ( rx->flags & cpu_to_le16 ( RTL_DESC_RES ) ) { + netdev_rx_err ( netdev, iobuf, -EIO ); + } else { + netdev_rx ( netdev, iobuf ); + } + rtl->rx.cons++; + } +} + +/** + * Poll for completed and received packets + * + * @v netdev Network device + */ +static void realtek_poll ( struct net_device *netdev ) { + struct realtek_nic *rtl = netdev->priv; + uint16_t isr; + + /* Check for and acknowledge interrupts */ + isr = readw ( rtl->regs + RTL_ISR ); + if ( ! isr ) + return; + writew ( isr, rtl->regs + RTL_ISR ); + + /* Poll for TX completions, if applicable */ + if ( isr & ( RTL_IRQ_TER | RTL_IRQ_TOK ) ) + realtek_poll_tx ( netdev ); + + /* Poll for RX completionsm, if applicable */ + if ( isr & ( RTL_IRQ_RER | RTL_IRQ_ROK ) ) + realtek_poll_rx ( netdev ); + + /* Check link state, if applicable */ + if ( isr & RTL_IRQ_PUN_LINKCHG ) + realtek_check_link ( netdev ); + + /* Refill RX ring */ + realtek_refill_rx ( rtl ); +} + +/** + * Enable or disable interrupts + * + * @v netdev Network device + * @v enable Interrupts should be enabled + */ +static void realtek_irq ( struct net_device *netdev, int enable ) { + struct realtek_nic *rtl = netdev->priv; + uint16_t imr; + + /* Set interrupt mask */ + imr = ( enable ? ( RTL_IRQ_PUN_LINKCHG | RTL_IRQ_TER | RTL_IRQ_TOK | + RTL_IRQ_RER | RTL_IRQ_ROK ) : 0 ); + writew ( imr, rtl->regs + RTL_IMR ); +} + +/** Realtek network device operations */ +static struct net_device_operations realtek_operations = { + .open = realtek_open, + .close = realtek_close, + .transmit = realtek_transmit, + .poll = realtek_poll, + .irq = realtek_irq, +}; + +/****************************************************************************** + * + * PCI interface + * + ****************************************************************************** + */ + +/** + * Probe PCI device + * + * @v pci PCI device + * @ret rc Return status code + */ +static int realtek_probe ( struct pci_device *pci ) { + struct net_device *netdev; + struct realtek_nic *rtl; + unsigned int i; + int rc; + + /* Allocate and initialise net device */ + netdev = alloc_etherdev ( sizeof ( *rtl ) ); + if ( ! netdev ) { + rc = -ENOMEM; + goto err_alloc; + } + netdev_init ( netdev, &realtek_operations ); + rtl = netdev->priv; + pci_set_drvdata ( pci, netdev ); + netdev->dev = &pci->dev; + memset ( rtl, 0, sizeof ( *rtl ) ); + realtek_init_ring ( &rtl->tx, RTL_NUM_TX_DESC, RTL_TNPDS ); + realtek_init_ring ( &rtl->rx, RTL_NUM_RX_DESC, RTL_RDSAR ); + + /* Fix up PCI device */ + adjust_pci_device ( pci ); + + /* Map registers */ + rtl->regs = ioremap ( pci->membase, RTL_BAR_SIZE ); + + /* Reset the NIC */ + if ( ( rc = realtek_reset ( rtl ) ) != 0 ) + goto err_reset; + + /* Initialise EEPROM */ + realtek_init_eeprom ( netdev ); + + /* Read MAC address from EEPROM */ + if ( ( rc = nvs_read ( &rtl->eeprom.nvs, RTL_EEPROM_MAC, + netdev->hw_addr, ETH_ALEN ) ) != 0 ) { + DBGC ( rtl, "REALTEK %p could not read MAC address: %s\n", + rtl, strerror ( rc ) ); + goto err_nvs_read; + } + + /* The EEPROM may not be present for onboard NICs. Fall back + * to reading the current ID register value, which will + * hopefully have been programmed by the platform firmware. + */ + if ( ! is_valid_ether_addr ( netdev->hw_addr ) ) { + DBGC ( rtl, "REALTEK %p seems to have no EEPROM\n", rtl ); + for ( i = 0 ; i < ETH_ALEN ; i++ ) + netdev->hw_addr[i] = readb ( rtl->regs + RTL_IDR0 + i ); + } + + /* Initialise and reset MII interface */ + mii_init ( &rtl->mii, &realtek_mii_operations ); + if ( ( rc = mii_reset ( &rtl->mii ) ) != 0 ) { + DBGC ( rtl, "REALTEK %p could not reset MII: %s\n", + rtl, strerror ( rc ) ); + goto err_mii_reset; + } + + /* Register network device */ + if ( ( rc = register_netdev ( netdev ) ) != 0 ) + goto err_register_netdev; + + /* Set initial link state */ + realtek_check_link ( netdev ); + + /* Register non-volatile options, if applicable */ + if ( rtl->nvo.nvs ) { + if ( ( rc = register_nvo ( &rtl->nvo, + netdev_settings ( netdev ) ) ) != 0) + goto err_register_nvo; + } + + return 0; + + err_register_nvo: + unregister_netdev ( netdev ); + err_register_netdev: + err_mii_reset: + err_nvs_read: + realtek_reset ( rtl ); + err_reset: + netdev_nullify ( netdev ); + netdev_put ( netdev ); + err_alloc: + return rc; +} + +/** + * Remove PCI device + * + * @v pci PCI device + */ +static void realtek_remove ( struct pci_device *pci ) { + struct net_device *netdev = pci_get_drvdata ( pci ); + struct realtek_nic *rtl = netdev->priv; + + /* Unregister non-volatile options, if applicable */ + if ( rtl->nvo.nvs ) + unregister_nvo ( &rtl->nvo ); + + /* Unregister network device */ + unregister_netdev ( netdev ); + + /* Reset card */ + realtek_reset ( rtl ); + + /* Free network device */ + netdev_nullify ( netdev ); + netdev_put ( netdev ); +} + +/** Realtek PCI device IDs */ +static struct pci_device_id realtek_nics[] = { + PCI_ROM ( 0x10ec, 0x8129, "r8129", "RTL-8129", 0 ), + PCI_ROM ( 0x10ec, 0x8136, "r8136", "RTL8101E/RTL8102E", 0 ), + PCI_ROM ( 0x10ec, 0x8167, "r8167", "RTL-8110SC/8169SC", 0 ), + PCI_ROM ( 0x10ec, 0x8168, "r8168", "RTL8111/8168B", 0 ), + PCI_ROM ( 0x10ec, 0x8169, "r8169", "RTL-8169", 0 ), + PCI_ROM ( 0x1186, 0x4300, "dge528t", "DGE-528T", 0 ), + PCI_ROM ( 0x1259, 0xc107, "allied8169", "Allied Telesyn 8169", 0 ), + PCI_ROM ( 0x16ec, 0x0116, "usr997902", "USR997902", 0 ), + PCI_ROM ( 0x1737, 0x1032, "linksys8169","Linksys 8169", 0 ), + PCI_ROM ( 0x0001, 0x8168, "clone8169", "Cloned 8169", 0 ), +}; + +/** Realtek PCI driver */ +struct pci_driver realtek_driver __pci_driver = { + .ids = realtek_nics, + .id_count = ( sizeof ( realtek_nics ) / sizeof ( realtek_nics[0] ) ), + .probe = realtek_probe, + .remove = realtek_remove, +}; diff --git a/src/drivers/net/realtek.h b/src/drivers/net/realtek.h new file mode 100644 index 0000000..aad4b34 --- /dev/null +++ b/src/drivers/net/realtek.h @@ -0,0 +1,205 @@ +#ifndef _REALTEK_H +#define _REALTEK_H + +/** @file + * + * Realtek 10/100/1000 network card driver + * + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include <ipxe/spi.h> +#include <ipxe/spi_bit.h> +#include <ipxe/nvo.h> +#include <ipxe/if_ether.h> + +/** PCI memory BAR size */ +#define RTL_BAR_SIZE 0x100 + +/** A packet descriptor */ +struct realtek_descriptor { + /** Buffer size */ + uint16_t length; + /** Flags */ + uint16_t flags; + /** Reserved */ + uint32_t reserved; + /** Buffer address */ + uint64_t address; +} __attribute__ (( packed )); + +/** Descriptor buffer size mask */ +#define RTL_DESC_SIZE_MASK 0x3fff + +/** Packet descriptor flags */ +enum realtek_descriptor_flags { + /** Descriptor is owned by NIC */ + RTL_DESC_OWN = 0x8000, + /** End of descriptor ring */ + RTL_DESC_EOR = 0x4000, + /** First segment descriptor */ + RTL_DESC_FS = 0x2000, + /** Last segment descriptor */ + RTL_DESC_LS = 0x1000, + /** Receive error summary */ + RTL_DESC_RES = 0x0020, +}; + +/** Descriptor ring alignment */ +#define RTL_RING_ALIGN 256 + +/** ID Register 0 (6 bytes) */ +#define RTL_IDR0 0x00 + +/** Multicast Register 0 (dword) */ +#define RTL_MAR0 0x08 + +/** Multicast Register 4 (dword) */ +#define RTL_MAR4 0x0c + +/** Transmit Normal Priority Descriptors (qword) */ +#define RTL_TNPDS 0x20 + +/** Number of transmit descriptors */ +#define RTL_NUM_TX_DESC 4 + +/** Command Register (byte) */ +#define RTL_CR 0x37 +#define RTL_CR_RST 0x10 /**< Reset */ +#define RTL_CR_RE 0x08 /**< Receiver Enable */ +#define RTL_CR_TE 0x04 /**< Transmit Enable */ + +/** Maximum time to wait for a reset, in milliseconds */ +#define RTL_RESET_MAX_WAIT_MS 100 + +/** Transmit Priority Polling Register (byte) */ +#define RTL_TPPOLL 0x38 +#define RTL_TPPOLL_NPQ 0x40 /**< Normal Priority Queue Polling */ + +/** Interrupt Mask Register (word) */ +#define RTL_IMR 0x3c +#define RTL_IRQ_PUN_LINKCHG 0x20 /**< Packet underrun / link change */ +#define RTL_IRQ_TER 0x08 /**< Transmit error */ +#define RTL_IRQ_TOK 0x04 /**< Transmit OK */ +#define RTL_IRQ_RER 0x02 /**< Receive error */ +#define RTL_IRQ_ROK 0x01 /**< Receive OK */ + +/** Interrupt Status Register (word) */ +#define RTL_ISR 0x3e + +/** Receive (Rx) Configuration Register (dword) */ +#define RTL_RCR 0x44 +#define RTL_RCR_9356SEL 0x40 /**< EEPROM is a 93C56 */ +#define RTL_RCR_AB 0x08 /**< Accept broadcast packets */ +#define RTL_RCR_AM 0x04 /**< Accept multicast packets */ +#define RTL_RCR_APM 0x02 /**< Accept physical match packets */ +#define RTL_RCR_AAP 0x01 /**< Accept all packets */ + +/** 93C46 (93C56) Command Register (byte) */ +#define RTL_9346CR 0x50 +#define RTL_9346CR_EEM1 0x80 /**< Mode select bit 1 */ +#define RTL_9346CR_EEM0 0x40 /**< Mode select bit 0 */ +#define RTL_9346CR_EECS 0x08 /**< Chip select */ +#define RTL_9346CR_EESK 0x04 /**< Clock */ +#define RTL_9346CR_EEDI 0x02 /**< Data in */ +#define RTL_9346CR_EEDO 0x01 /**< Data out */ + +/** Word offset of MAC address within EEPROM */ +#define RTL_EEPROM_MAC ( 0x0e / 2 ) + +/** Word offset of VPD / non-volatile options within EEPROM */ +#define RTL_EEPROM_VPD ( 0x40 / 2 ) + +/** Length of VPD / non-volatile options within EEPROM */ +#define RTL_EEPROM_VPD_LEN 0x40 + +/** Configuration Register 1 (byte) */ +#define RTL_CONFIG1 0x52 +#define RTL_CONFIG1_VPD 0x02 /**< Vital Product Data enabled */ + +/** PHY Access Register (dword) */ +#define RTL_PHYAR 0x60 +#define RTL_PHYAR_FLAG 0x80000000UL /**< Read/write flag */ + +/** Construct PHY Access Register value */ +#define RTL_PHYAR_VALUE( flag, reg, data ) ( (flag) | ( (reg) << 16 ) | (data) ) + +/** Extract PHY Access Register data */ +#define RTL_PHYAR_DATA( value ) ( (value) & 0xffff ) + +/** Maximum time to wait for PHY access, in microseconds */ +#define RTL_MII_MAX_WAIT_US 500 + +/** PHY (GMII, MII, or TBI) Status Register (byte) */ +#define RTL_PHYSTATUS 0x6c +#define RTL_PHYSTATUS_LINKSTS 0x02 /**< Link ok */ + +/** RX Packet Maximum Size Register (word) */ +#define RTL_RMS 0xda + +/** C+ Command Register (word) */ +#define RTL_CPCR 0xe0 +#define RTL_CPCR_DAC 0x10 /**< PCI Dual Address Cycle Enable */ +#define RTL_CPCR_MULRW 0x08 /**< PCI Multiple Read/Write Enable */ + +/** Receive Descriptor Start Address Register (qword) */ +#define RTL_RDSAR 0xe4 + +/** Number of receive descriptors */ +#define RTL_NUM_RX_DESC 4 + +/** Receive buffer length */ +#define RTL_RX_MAX_LEN ( ETH_FRAME_LEN + 4 /* VLAN */ + 4 /* CRC */ ) + +/** A Realtek descriptor ring */ +struct realtek_ring { + /** Descriptors */ + struct realtek_descriptor *desc; + /** Producer index */ + unsigned int prod; + /** Consumer index */ + unsigned int cons; + + /** Descriptor start address register */ + unsigned int reg; + /** Length (in bytes) */ + size_t len; +}; + +/** + * Initialise descriptor ring + * + * @v ring Descriptor ring + * @v count Number of descriptors + * @v reg Descriptor start address register + */ +static inline __attribute__ (( always_inline)) void +realtek_init_ring ( struct realtek_ring *ring, unsigned int count, + unsigned int reg ) { + ring->len = ( count * sizeof ( ring->desc[0] ) ); + ring->reg = reg; +} + +/** A Realtek network card */ +struct realtek_nic { + /** Registers */ + void *regs; + /** SPI bit-bashing interface */ + struct spi_bit_basher spibit; + /** EEPROM */ + struct spi_device eeprom; + /** Non-volatile options */ + struct nvo_block nvo; + /** MII interface */ + struct mii_interface mii; + + /** Transmit descriptor ring */ + struct realtek_ring tx; + /** Receive descriptor ring */ + struct realtek_ring rx; + /** Receive I/O buffers */ + struct io_buffer *rx_iobuf[RTL_NUM_RX_DESC]; +}; + +#endif /* _REALTEK_H */ |