From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/net/ethernet/atheros/alx/Makefile | 3 + drivers/net/ethernet/atheros/alx/alx.h | 146 ++ drivers/net/ethernet/atheros/alx/ethtool.c | 334 +++++ drivers/net/ethernet/atheros/alx/hw.c | 1124 +++++++++++++++ drivers/net/ethernet/atheros/alx/hw.h | 584 ++++++++ drivers/net/ethernet/atheros/alx/main.c | 2067 ++++++++++++++++++++++++++++ drivers/net/ethernet/atheros/alx/reg.h | 856 ++++++++++++ 7 files changed, 5114 insertions(+) create mode 100644 drivers/net/ethernet/atheros/alx/Makefile create mode 100644 drivers/net/ethernet/atheros/alx/alx.h create mode 100644 drivers/net/ethernet/atheros/alx/ethtool.c create mode 100644 drivers/net/ethernet/atheros/alx/hw.c create mode 100644 drivers/net/ethernet/atheros/alx/hw.h create mode 100644 drivers/net/ethernet/atheros/alx/main.c create mode 100644 drivers/net/ethernet/atheros/alx/reg.h (limited to 'drivers/net/ethernet/atheros/alx') diff --git a/drivers/net/ethernet/atheros/alx/Makefile b/drivers/net/ethernet/atheros/alx/Makefile new file mode 100644 index 000000000..fec7885a5 --- /dev/null +++ b/drivers/net/ethernet/atheros/alx/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only +obj-$(CONFIG_ALX) += alx.o +alx-objs := main.o ethtool.o hw.o diff --git a/drivers/net/ethernet/atheros/alx/alx.h b/drivers/net/ethernet/atheros/alx/alx.h new file mode 100644 index 000000000..693006c5a --- /dev/null +++ b/drivers/net/ethernet/atheros/alx/alx.h @@ -0,0 +1,146 @@ +/* + * Copyright (c) 2013 Johannes Berg + * + * This file is free software: you may copy, redistribute 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 file 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, see . + * + * This file incorporates work covered by the following copyright and + * permission notice: + * + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _ALX_H_ +#define _ALX_H_ + +#include +#include +#include +#include +#include "hw.h" + +#define ALX_WATCHDOG_TIME (5 * HZ) + +struct alx_buffer { + struct sk_buff *skb; + DEFINE_DMA_UNMAP_ADDR(dma); + DEFINE_DMA_UNMAP_LEN(size); +}; + +struct alx_rx_queue { + struct net_device *netdev; + struct device *dev; + struct alx_napi *np; + + struct alx_rrd *rrd; + dma_addr_t rrd_dma; + + struct alx_rfd *rfd; + dma_addr_t rfd_dma; + + struct alx_buffer *bufs; + + u16 count; + u16 write_idx, read_idx; + u16 rrd_read_idx; + u16 queue_idx; +}; +#define ALX_RX_ALLOC_THRESH 32 + +struct alx_tx_queue { + struct net_device *netdev; + struct device *dev; + + struct alx_txd *tpd; + dma_addr_t tpd_dma; + + struct alx_buffer *bufs; + + u16 count; + u16 write_idx, read_idx; + u16 queue_idx; + u16 p_reg, c_reg; +}; + +#define ALX_DEFAULT_TX_WORK 128 + +enum alx_device_quirks { + ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG = BIT(0), +}; + +struct alx_napi { + struct napi_struct napi; + struct alx_priv *alx; + struct alx_rx_queue *rxq; + struct alx_tx_queue *txq; + int vec_idx; + u32 vec_mask; + char irq_lbl[IFNAMSIZ + 8]; +}; + +#define ALX_MAX_NAPIS 8 + +struct alx_priv { + struct net_device *dev; + + struct alx_hw hw; + + /* msi-x vectors */ + int num_vec; + + /* all descriptor memory */ + struct { + dma_addr_t dma; + void *virt; + unsigned int size; + } descmem; + + struct alx_napi *qnapi[ALX_MAX_NAPIS]; + int num_txq; + int num_rxq; + int num_napi; + + /* protect int_mask updates */ + spinlock_t irq_lock; + u32 int_mask; + + unsigned int tx_ringsz; + unsigned int rx_ringsz; + unsigned int rxbuf_size; + + struct work_struct link_check_wk; + struct work_struct reset_wk; + + u16 msg_enable; + + /* protects hw.stats */ + spinlock_t stats_lock; + + struct mutex mtx; +}; + +extern const struct ethtool_ops alx_ethtool_ops; + +#endif diff --git a/drivers/net/ethernet/atheros/alx/ethtool.c b/drivers/net/ethernet/atheros/alx/ethtool.c new file mode 100644 index 000000000..7f6b69a52 --- /dev/null +++ b/drivers/net/ethernet/atheros/alx/ethtool.c @@ -0,0 +1,334 @@ +/* + * Copyright (c) 2013 Johannes Berg + * + * This file is free software: you may copy, redistribute 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 file 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, see . + * + * This file incorporates work covered by the following copyright and + * permission notice: + * + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "alx.h" +#include "reg.h" +#include "hw.h" + +/* The order of these strings must match the order of the fields in + * struct alx_hw_stats + * See hw.h + */ +static const char alx_gstrings_stats[][ETH_GSTRING_LEN] = { + "rx_packets", + "rx_bcast_packets", + "rx_mcast_packets", + "rx_pause_packets", + "rx_ctrl_packets", + "rx_fcs_errors", + "rx_length_errors", + "rx_bytes", + "rx_runt_packets", + "rx_fragments", + "rx_64B_or_less_packets", + "rx_65B_to_127B_packets", + "rx_128B_to_255B_packets", + "rx_256B_to_511B_packets", + "rx_512B_to_1023B_packets", + "rx_1024B_to_1518B_packets", + "rx_1519B_to_mtu_packets", + "rx_oversize_packets", + "rx_rxf_ov_drop_packets", + "rx_rrd_ov_drop_packets", + "rx_align_errors", + "rx_bcast_bytes", + "rx_mcast_bytes", + "rx_address_errors", + "tx_packets", + "tx_bcast_packets", + "tx_mcast_packets", + "tx_pause_packets", + "tx_exc_defer_packets", + "tx_ctrl_packets", + "tx_defer_packets", + "tx_bytes", + "tx_64B_or_less_packets", + "tx_65B_to_127B_packets", + "tx_128B_to_255B_packets", + "tx_256B_to_511B_packets", + "tx_512B_to_1023B_packets", + "tx_1024B_to_1518B_packets", + "tx_1519B_to_mtu_packets", + "tx_single_collision", + "tx_multiple_collisions", + "tx_late_collision", + "tx_abort_collision", + "tx_underrun", + "tx_trd_eop", + "tx_length_errors", + "tx_trunc_packets", + "tx_bcast_bytes", + "tx_mcast_bytes", + "tx_update", +}; + +#define ALX_NUM_STATS ARRAY_SIZE(alx_gstrings_stats) + + +static u32 alx_get_supported_speeds(struct alx_hw *hw) +{ + u32 supported = SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full; + + if (alx_hw_giga(hw)) + supported |= SUPPORTED_1000baseT_Full; + + BUILD_BUG_ON(SUPPORTED_10baseT_Half != ADVERTISED_10baseT_Half); + BUILD_BUG_ON(SUPPORTED_10baseT_Full != ADVERTISED_10baseT_Full); + BUILD_BUG_ON(SUPPORTED_100baseT_Half != ADVERTISED_100baseT_Half); + BUILD_BUG_ON(SUPPORTED_100baseT_Full != ADVERTISED_100baseT_Full); + BUILD_BUG_ON(SUPPORTED_1000baseT_Full != ADVERTISED_1000baseT_Full); + + return supported; +} + +static int alx_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) +{ + struct alx_priv *alx = netdev_priv(netdev); + struct alx_hw *hw = &alx->hw; + u32 supported, advertising; + + supported = SUPPORTED_Autoneg | + SUPPORTED_TP | + SUPPORTED_Pause | + SUPPORTED_Asym_Pause; + if (alx_hw_giga(hw)) + supported |= SUPPORTED_1000baseT_Full; + supported |= alx_get_supported_speeds(hw); + + advertising = ADVERTISED_TP; + if (hw->adv_cfg & ADVERTISED_Autoneg) + advertising |= hw->adv_cfg; + + cmd->base.port = PORT_TP; + cmd->base.phy_address = 0; + + if (hw->adv_cfg & ADVERTISED_Autoneg) + cmd->base.autoneg = AUTONEG_ENABLE; + else + cmd->base.autoneg = AUTONEG_DISABLE; + + if (hw->flowctrl & ALX_FC_ANEG && hw->adv_cfg & ADVERTISED_Autoneg) { + if (hw->flowctrl & ALX_FC_RX) { + advertising |= ADVERTISED_Pause; + + if (!(hw->flowctrl & ALX_FC_TX)) + advertising |= ADVERTISED_Asym_Pause; + } else if (hw->flowctrl & ALX_FC_TX) { + advertising |= ADVERTISED_Asym_Pause; + } + } + + mutex_lock(&alx->mtx); + cmd->base.speed = hw->link_speed; + cmd->base.duplex = hw->duplex; + mutex_unlock(&alx->mtx); + + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + supported); + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, + advertising); + + return 0; +} + +static int alx_set_link_ksettings(struct net_device *netdev, + const struct ethtool_link_ksettings *cmd) +{ + struct alx_priv *alx = netdev_priv(netdev); + struct alx_hw *hw = &alx->hw; + u32 adv_cfg; + u32 advertising; + int ret; + + ethtool_convert_link_mode_to_legacy_u32(&advertising, + cmd->link_modes.advertising); + + if (cmd->base.autoneg == AUTONEG_ENABLE) { + if (advertising & ~alx_get_supported_speeds(hw)) + return -EINVAL; + adv_cfg = advertising | ADVERTISED_Autoneg; + } else { + adv_cfg = alx_speed_to_ethadv(cmd->base.speed, + cmd->base.duplex); + + if (!adv_cfg || adv_cfg == ADVERTISED_1000baseT_Full) + return -EINVAL; + } + + hw->adv_cfg = adv_cfg; + + mutex_lock(&alx->mtx); + ret = alx_setup_speed_duplex(hw, adv_cfg, hw->flowctrl); + mutex_unlock(&alx->mtx); + + return ret; +} + +static void alx_get_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct alx_priv *alx = netdev_priv(netdev); + struct alx_hw *hw = &alx->hw; + + mutex_lock(&alx->mtx); + pause->autoneg = !!(hw->flowctrl & ALX_FC_ANEG && + hw->adv_cfg & ADVERTISED_Autoneg); + pause->tx_pause = !!(hw->flowctrl & ALX_FC_TX); + pause->rx_pause = !!(hw->flowctrl & ALX_FC_RX); + mutex_unlock(&alx->mtx); +} + + +static int alx_set_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + struct alx_priv *alx = netdev_priv(netdev); + struct alx_hw *hw = &alx->hw; + int err = 0; + bool reconfig_phy = false; + u8 fc = 0; + + if (pause->tx_pause) + fc |= ALX_FC_TX; + if (pause->rx_pause) + fc |= ALX_FC_RX; + if (pause->autoneg) + fc |= ALX_FC_ANEG; + + mutex_lock(&alx->mtx); + + /* restart auto-neg for auto-mode */ + if (hw->adv_cfg & ADVERTISED_Autoneg) { + if (!((fc ^ hw->flowctrl) & ALX_FC_ANEG)) + reconfig_phy = true; + if (fc & hw->flowctrl & ALX_FC_ANEG && + (fc ^ hw->flowctrl) & (ALX_FC_RX | ALX_FC_TX)) + reconfig_phy = true; + } + + if (reconfig_phy) { + err = alx_setup_speed_duplex(hw, hw->adv_cfg, fc); + if (err) { + mutex_unlock(&alx->mtx); + return err; + } + } + + /* flow control on mac */ + if ((fc ^ hw->flowctrl) & (ALX_FC_RX | ALX_FC_TX)) + alx_cfg_mac_flowcontrol(hw, fc); + + hw->flowctrl = fc; + mutex_unlock(&alx->mtx); + + return 0; +} + +static u32 alx_get_msglevel(struct net_device *netdev) +{ + struct alx_priv *alx = netdev_priv(netdev); + + return alx->msg_enable; +} + +static void alx_set_msglevel(struct net_device *netdev, u32 data) +{ + struct alx_priv *alx = netdev_priv(netdev); + + alx->msg_enable = data; +} + +static void alx_get_ethtool_stats(struct net_device *netdev, + struct ethtool_stats *estats, u64 *data) +{ + struct alx_priv *alx = netdev_priv(netdev); + struct alx_hw *hw = &alx->hw; + + spin_lock(&alx->stats_lock); + + alx_update_hw_stats(hw); + BUILD_BUG_ON(sizeof(hw->stats) != ALX_NUM_STATS * sizeof(u64)); + memcpy(data, &hw->stats, sizeof(hw->stats)); + + spin_unlock(&alx->stats_lock); +} + +static void alx_get_strings(struct net_device *netdev, u32 stringset, u8 *buf) +{ + switch (stringset) { + case ETH_SS_STATS: + memcpy(buf, &alx_gstrings_stats, sizeof(alx_gstrings_stats)); + break; + default: + WARN_ON(1); + break; + } +} + +static int alx_get_sset_count(struct net_device *netdev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return ALX_NUM_STATS; + default: + return -EINVAL; + } +} + +const struct ethtool_ops alx_ethtool_ops = { + .get_pauseparam = alx_get_pauseparam, + .set_pauseparam = alx_set_pauseparam, + .get_msglevel = alx_get_msglevel, + .set_msglevel = alx_set_msglevel, + .get_link = ethtool_op_get_link, + .get_strings = alx_get_strings, + .get_sset_count = alx_get_sset_count, + .get_ethtool_stats = alx_get_ethtool_stats, + .get_link_ksettings = alx_get_link_ksettings, + .set_link_ksettings = alx_set_link_ksettings, +}; diff --git a/drivers/net/ethernet/atheros/alx/hw.c b/drivers/net/ethernet/atheros/alx/hw.c new file mode 100644 index 000000000..6ac40b000 --- /dev/null +++ b/drivers/net/ethernet/atheros/alx/hw.c @@ -0,0 +1,1124 @@ +/* + * Copyright (c) 2013 Johannes Berg + * + * This file is free software: you may copy, redistribute 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 file 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, see . + * + * This file incorporates work covered by the following copyright and + * permission notice: + * + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +#include +#include +#include +#include +#include "reg.h" +#include "hw.h" + +static inline bool alx_is_rev_a(u8 rev) +{ + return rev == ALX_REV_A0 || rev == ALX_REV_A1; +} + +static int alx_wait_mdio_idle(struct alx_hw *hw) +{ + u32 val; + int i; + + for (i = 0; i < ALX_MDIO_MAX_AC_TO; i++) { + val = alx_read_mem32(hw, ALX_MDIO); + if (!(val & ALX_MDIO_BUSY)) + return 0; + udelay(10); + } + + return -ETIMEDOUT; +} + +static int alx_read_phy_core(struct alx_hw *hw, bool ext, u8 dev, + u16 reg, u16 *phy_data) +{ + u32 val, clk_sel; + int err; + + *phy_data = 0; + + /* use slow clock when it's in hibernation status */ + clk_sel = hw->link_speed != SPEED_UNKNOWN ? + ALX_MDIO_CLK_SEL_25MD4 : + ALX_MDIO_CLK_SEL_25MD128; + + if (ext) { + val = dev << ALX_MDIO_EXTN_DEVAD_SHIFT | + reg << ALX_MDIO_EXTN_REG_SHIFT; + alx_write_mem32(hw, ALX_MDIO_EXTN, val); + + val = ALX_MDIO_SPRES_PRMBL | ALX_MDIO_START | + ALX_MDIO_MODE_EXT | ALX_MDIO_OP_READ | + clk_sel << ALX_MDIO_CLK_SEL_SHIFT; + } else { + val = ALX_MDIO_SPRES_PRMBL | + clk_sel << ALX_MDIO_CLK_SEL_SHIFT | + reg << ALX_MDIO_REG_SHIFT | + ALX_MDIO_START | ALX_MDIO_OP_READ; + } + alx_write_mem32(hw, ALX_MDIO, val); + + err = alx_wait_mdio_idle(hw); + if (err) + return err; + val = alx_read_mem32(hw, ALX_MDIO); + *phy_data = ALX_GET_FIELD(val, ALX_MDIO_DATA); + return 0; +} + +static int alx_write_phy_core(struct alx_hw *hw, bool ext, u8 dev, + u16 reg, u16 phy_data) +{ + u32 val, clk_sel; + + /* use slow clock when it's in hibernation status */ + clk_sel = hw->link_speed != SPEED_UNKNOWN ? + ALX_MDIO_CLK_SEL_25MD4 : + ALX_MDIO_CLK_SEL_25MD128; + + if (ext) { + val = dev << ALX_MDIO_EXTN_DEVAD_SHIFT | + reg << ALX_MDIO_EXTN_REG_SHIFT; + alx_write_mem32(hw, ALX_MDIO_EXTN, val); + + val = ALX_MDIO_SPRES_PRMBL | + clk_sel << ALX_MDIO_CLK_SEL_SHIFT | + phy_data << ALX_MDIO_DATA_SHIFT | + ALX_MDIO_START | ALX_MDIO_MODE_EXT; + } else { + val = ALX_MDIO_SPRES_PRMBL | + clk_sel << ALX_MDIO_CLK_SEL_SHIFT | + reg << ALX_MDIO_REG_SHIFT | + phy_data << ALX_MDIO_DATA_SHIFT | + ALX_MDIO_START; + } + alx_write_mem32(hw, ALX_MDIO, val); + + return alx_wait_mdio_idle(hw); +} + +static int __alx_read_phy_reg(struct alx_hw *hw, u16 reg, u16 *phy_data) +{ + return alx_read_phy_core(hw, false, 0, reg, phy_data); +} + +static int __alx_write_phy_reg(struct alx_hw *hw, u16 reg, u16 phy_data) +{ + return alx_write_phy_core(hw, false, 0, reg, phy_data); +} + +static int __alx_read_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 *pdata) +{ + return alx_read_phy_core(hw, true, dev, reg, pdata); +} + +static int __alx_write_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 data) +{ + return alx_write_phy_core(hw, true, dev, reg, data); +} + +static int __alx_read_phy_dbg(struct alx_hw *hw, u16 reg, u16 *pdata) +{ + int err; + + err = __alx_write_phy_reg(hw, ALX_MII_DBG_ADDR, reg); + if (err) + return err; + + return __alx_read_phy_reg(hw, ALX_MII_DBG_DATA, pdata); +} + +static int __alx_write_phy_dbg(struct alx_hw *hw, u16 reg, u16 data) +{ + int err; + + err = __alx_write_phy_reg(hw, ALX_MII_DBG_ADDR, reg); + if (err) + return err; + + return __alx_write_phy_reg(hw, ALX_MII_DBG_DATA, data); +} + +int alx_read_phy_reg(struct alx_hw *hw, u16 reg, u16 *phy_data) +{ + int err; + + spin_lock(&hw->mdio_lock); + err = __alx_read_phy_reg(hw, reg, phy_data); + spin_unlock(&hw->mdio_lock); + + return err; +} + +int alx_write_phy_reg(struct alx_hw *hw, u16 reg, u16 phy_data) +{ + int err; + + spin_lock(&hw->mdio_lock); + err = __alx_write_phy_reg(hw, reg, phy_data); + spin_unlock(&hw->mdio_lock); + + return err; +} + +int alx_read_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 *pdata) +{ + int err; + + spin_lock(&hw->mdio_lock); + err = __alx_read_phy_ext(hw, dev, reg, pdata); + spin_unlock(&hw->mdio_lock); + + return err; +} + +int alx_write_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 data) +{ + int err; + + spin_lock(&hw->mdio_lock); + err = __alx_write_phy_ext(hw, dev, reg, data); + spin_unlock(&hw->mdio_lock); + + return err; +} + +static int alx_read_phy_dbg(struct alx_hw *hw, u16 reg, u16 *pdata) +{ + int err; + + spin_lock(&hw->mdio_lock); + err = __alx_read_phy_dbg(hw, reg, pdata); + spin_unlock(&hw->mdio_lock); + + return err; +} + +static int alx_write_phy_dbg(struct alx_hw *hw, u16 reg, u16 data) +{ + int err; + + spin_lock(&hw->mdio_lock); + err = __alx_write_phy_dbg(hw, reg, data); + spin_unlock(&hw->mdio_lock); + + return err; +} + +static u16 alx_get_phy_config(struct alx_hw *hw) +{ + u32 val; + u16 phy_val; + + val = alx_read_mem32(hw, ALX_PHY_CTRL); + /* phy in reset */ + if ((val & ALX_PHY_CTRL_DSPRST_OUT) == 0) + return ALX_DRV_PHY_UNKNOWN; + + val = alx_read_mem32(hw, ALX_DRV); + val = ALX_GET_FIELD(val, ALX_DRV_PHY); + if (ALX_DRV_PHY_UNKNOWN == val) + return ALX_DRV_PHY_UNKNOWN; + + alx_read_phy_reg(hw, ALX_MII_DBG_ADDR, &phy_val); + if (ALX_PHY_INITED == phy_val) + return val; + + return ALX_DRV_PHY_UNKNOWN; +} + +static bool alx_wait_reg(struct alx_hw *hw, u32 reg, u32 wait, u32 *val) +{ + u32 read; + int i; + + for (i = 0; i < ALX_SLD_MAX_TO; i++) { + read = alx_read_mem32(hw, reg); + if ((read & wait) == 0) { + if (val) + *val = read; + return true; + } + mdelay(1); + } + + return false; +} + +static bool alx_read_macaddr(struct alx_hw *hw, u8 *addr) +{ + u32 mac0, mac1; + + mac0 = alx_read_mem32(hw, ALX_STAD0); + mac1 = alx_read_mem32(hw, ALX_STAD1); + + /* addr should be big-endian */ + put_unaligned(cpu_to_be32(mac0), (__be32 *)(addr + 2)); + put_unaligned(cpu_to_be16(mac1), (__be16 *)addr); + + return is_valid_ether_addr(addr); +} + +int alx_get_perm_macaddr(struct alx_hw *hw, u8 *addr) +{ + u32 val; + + /* try to get it from register first */ + if (alx_read_macaddr(hw, addr)) + return 0; + + /* try to load from efuse */ + if (!alx_wait_reg(hw, ALX_SLD, ALX_SLD_STAT | ALX_SLD_START, &val)) + return -EIO; + alx_write_mem32(hw, ALX_SLD, val | ALX_SLD_START); + if (!alx_wait_reg(hw, ALX_SLD, ALX_SLD_START, NULL)) + return -EIO; + if (alx_read_macaddr(hw, addr)) + return 0; + + /* try to load from flash/eeprom (if present) */ + val = alx_read_mem32(hw, ALX_EFLD); + if (val & (ALX_EFLD_F_EXIST | ALX_EFLD_E_EXIST)) { + if (!alx_wait_reg(hw, ALX_EFLD, + ALX_EFLD_STAT | ALX_EFLD_START, &val)) + return -EIO; + alx_write_mem32(hw, ALX_EFLD, val | ALX_EFLD_START); + if (!alx_wait_reg(hw, ALX_EFLD, ALX_EFLD_START, NULL)) + return -EIO; + if (alx_read_macaddr(hw, addr)) + return 0; + } + + return -EIO; +} + +void alx_set_macaddr(struct alx_hw *hw, const u8 *addr) +{ + u32 val; + + /* for example: 00-0B-6A-F6-00-DC * STAD0=6AF600DC, STAD1=000B */ + val = be32_to_cpu(get_unaligned((__be32 *)(addr + 2))); + alx_write_mem32(hw, ALX_STAD0, val); + val = be16_to_cpu(get_unaligned((__be16 *)addr)); + alx_write_mem32(hw, ALX_STAD1, val); +} + +static void alx_reset_osc(struct alx_hw *hw, u8 rev) +{ + u32 val, val2; + + /* clear Internal OSC settings, switching OSC by hw itself */ + val = alx_read_mem32(hw, ALX_MISC3); + alx_write_mem32(hw, ALX_MISC3, + (val & ~ALX_MISC3_25M_BY_SW) | + ALX_MISC3_25M_NOTO_INTNL); + + /* 25M clk from chipset may be unstable 1s after de-assert of + * PERST, driver need re-calibrate before enter Sleep for WoL + */ + val = alx_read_mem32(hw, ALX_MISC); + if (rev >= ALX_REV_B0) { + /* restore over current protection def-val, + * this val could be reset by MAC-RST + */ + ALX_SET_FIELD(val, ALX_MISC_PSW_OCP, ALX_MISC_PSW_OCP_DEF); + /* a 0->1 change will update the internal val of osc */ + val &= ~ALX_MISC_INTNLOSC_OPEN; + alx_write_mem32(hw, ALX_MISC, val); + alx_write_mem32(hw, ALX_MISC, val | ALX_MISC_INTNLOSC_OPEN); + /* hw will automatically dis OSC after cab. */ + val2 = alx_read_mem32(hw, ALX_MSIC2); + val2 &= ~ALX_MSIC2_CALB_START; + alx_write_mem32(hw, ALX_MSIC2, val2); + alx_write_mem32(hw, ALX_MSIC2, val2 | ALX_MSIC2_CALB_START); + } else { + val &= ~ALX_MISC_INTNLOSC_OPEN; + /* disable isolate for rev A devices */ + if (alx_is_rev_a(rev)) + val &= ~ALX_MISC_ISO_EN; + + alx_write_mem32(hw, ALX_MISC, val | ALX_MISC_INTNLOSC_OPEN); + alx_write_mem32(hw, ALX_MISC, val); + } + + udelay(20); +} + +static int alx_stop_mac(struct alx_hw *hw) +{ + u32 rxq, txq, val; + u16 i; + + rxq = alx_read_mem32(hw, ALX_RXQ0); + alx_write_mem32(hw, ALX_RXQ0, rxq & ~ALX_RXQ0_EN); + txq = alx_read_mem32(hw, ALX_TXQ0); + alx_write_mem32(hw, ALX_TXQ0, txq & ~ALX_TXQ0_EN); + + udelay(40); + + hw->rx_ctrl &= ~(ALX_MAC_CTRL_RX_EN | ALX_MAC_CTRL_TX_EN); + alx_write_mem32(hw, ALX_MAC_CTRL, hw->rx_ctrl); + + for (i = 0; i < ALX_DMA_MAC_RST_TO; i++) { + val = alx_read_mem32(hw, ALX_MAC_STS); + if (!(val & ALX_MAC_STS_IDLE)) + return 0; + udelay(10); + } + + return -ETIMEDOUT; +} + +int alx_reset_mac(struct alx_hw *hw) +{ + u32 val, pmctrl; + int i, ret; + u8 rev; + bool a_cr; + + pmctrl = 0; + rev = alx_hw_revision(hw); + a_cr = alx_is_rev_a(rev) && alx_hw_with_cr(hw); + + /* disable all interrupts, RXQ/TXQ */ + alx_write_mem32(hw, ALX_MSIX_MASK, 0xFFFFFFFF); + alx_write_mem32(hw, ALX_IMR, 0); + alx_write_mem32(hw, ALX_ISR, ALX_ISR_DIS); + + ret = alx_stop_mac(hw); + if (ret) + return ret; + + /* mac reset workaroud */ + alx_write_mem32(hw, ALX_RFD_PIDX, 1); + + /* dis l0s/l1 before mac reset */ + if (a_cr) { + pmctrl = alx_read_mem32(hw, ALX_PMCTRL); + if (pmctrl & (ALX_PMCTRL_L1_EN | ALX_PMCTRL_L0S_EN)) + alx_write_mem32(hw, ALX_PMCTRL, + pmctrl & ~(ALX_PMCTRL_L1_EN | + ALX_PMCTRL_L0S_EN)); + } + + /* reset whole mac safely */ + val = alx_read_mem32(hw, ALX_MASTER); + alx_write_mem32(hw, ALX_MASTER, + val | ALX_MASTER_DMA_MAC_RST | ALX_MASTER_OOB_DIS); + + /* make sure it's real idle */ + udelay(10); + for (i = 0; i < ALX_DMA_MAC_RST_TO; i++) { + val = alx_read_mem32(hw, ALX_RFD_PIDX); + if (val == 0) + break; + udelay(10); + } + for (; i < ALX_DMA_MAC_RST_TO; i++) { + val = alx_read_mem32(hw, ALX_MASTER); + if ((val & ALX_MASTER_DMA_MAC_RST) == 0) + break; + udelay(10); + } + if (i == ALX_DMA_MAC_RST_TO) + return -EIO; + udelay(10); + + if (a_cr) { + alx_write_mem32(hw, ALX_MASTER, val | ALX_MASTER_PCLKSEL_SRDS); + /* restore l0s / l1 */ + if (pmctrl & (ALX_PMCTRL_L1_EN | ALX_PMCTRL_L0S_EN)) + alx_write_mem32(hw, ALX_PMCTRL, pmctrl); + } + + alx_reset_osc(hw, rev); + + /* clear Internal OSC settings, switching OSC by hw itself, + * disable isolate for rev A devices + */ + val = alx_read_mem32(hw, ALX_MISC3); + alx_write_mem32(hw, ALX_MISC3, + (val & ~ALX_MISC3_25M_BY_SW) | + ALX_MISC3_25M_NOTO_INTNL); + val = alx_read_mem32(hw, ALX_MISC); + val &= ~ALX_MISC_INTNLOSC_OPEN; + if (alx_is_rev_a(rev)) + val &= ~ALX_MISC_ISO_EN; + alx_write_mem32(hw, ALX_MISC, val); + udelay(20); + + /* driver control speed/duplex, hash-alg */ + alx_write_mem32(hw, ALX_MAC_CTRL, hw->rx_ctrl); + + val = alx_read_mem32(hw, ALX_SERDES); + alx_write_mem32(hw, ALX_SERDES, + val | ALX_SERDES_MACCLK_SLWDWN | + ALX_SERDES_PHYCLK_SLWDWN); + + return 0; +} + +void alx_reset_phy(struct alx_hw *hw) +{ + int i; + u32 val; + u16 phy_val; + + /* (DSP)reset PHY core */ + val = alx_read_mem32(hw, ALX_PHY_CTRL); + val &= ~(ALX_PHY_CTRL_DSPRST_OUT | ALX_PHY_CTRL_IDDQ | + ALX_PHY_CTRL_GATE_25M | ALX_PHY_CTRL_POWER_DOWN | + ALX_PHY_CTRL_CLS); + val |= ALX_PHY_CTRL_RST_ANALOG; + + val |= (ALX_PHY_CTRL_HIB_PULSE | ALX_PHY_CTRL_HIB_EN); + alx_write_mem32(hw, ALX_PHY_CTRL, val); + udelay(10); + alx_write_mem32(hw, ALX_PHY_CTRL, val | ALX_PHY_CTRL_DSPRST_OUT); + + for (i = 0; i < ALX_PHY_CTRL_DSPRST_TO; i++) + udelay(10); + + /* phy power saving & hib */ + alx_write_phy_dbg(hw, ALX_MIIDBG_LEGCYPS, ALX_LEGCYPS_DEF); + alx_write_phy_dbg(hw, ALX_MIIDBG_SYSMODCTRL, + ALX_SYSMODCTRL_IECHOADJ_DEF); + alx_write_phy_ext(hw, ALX_MIIEXT_PCS, ALX_MIIEXT_VDRVBIAS, + ALX_VDRVBIAS_DEF); + + /* EEE advertisement */ + val = alx_read_mem32(hw, ALX_LPI_CTRL); + alx_write_mem32(hw, ALX_LPI_CTRL, val & ~ALX_LPI_CTRL_EN); + alx_write_phy_ext(hw, ALX_MIIEXT_ANEG, ALX_MIIEXT_LOCAL_EEEADV, 0); + + /* phy power saving */ + alx_write_phy_dbg(hw, ALX_MIIDBG_TST10BTCFG, ALX_TST10BTCFG_DEF); + alx_write_phy_dbg(hw, ALX_MIIDBG_SRDSYSMOD, ALX_SRDSYSMOD_DEF); + alx_write_phy_dbg(hw, ALX_MIIDBG_TST100BTCFG, ALX_TST100BTCFG_DEF); + alx_write_phy_dbg(hw, ALX_MIIDBG_ANACTRL, ALX_ANACTRL_DEF); + alx_read_phy_dbg(hw, ALX_MIIDBG_GREENCFG2, &phy_val); + alx_write_phy_dbg(hw, ALX_MIIDBG_GREENCFG2, + phy_val & ~ALX_GREENCFG2_GATE_DFSE_EN); + /* rtl8139c, 120m issue */ + alx_write_phy_ext(hw, ALX_MIIEXT_ANEG, ALX_MIIEXT_NLP78, + ALX_MIIEXT_NLP78_120M_DEF); + alx_write_phy_ext(hw, ALX_MIIEXT_ANEG, ALX_MIIEXT_S3DIG10, + ALX_MIIEXT_S3DIG10_DEF); + + if (hw->lnk_patch) { + /* Turn off half amplitude */ + alx_read_phy_ext(hw, ALX_MIIEXT_PCS, ALX_MIIEXT_CLDCTRL3, + &phy_val); + alx_write_phy_ext(hw, ALX_MIIEXT_PCS, ALX_MIIEXT_CLDCTRL3, + phy_val | ALX_CLDCTRL3_BP_CABLE1TH_DET_GT); + /* Turn off Green feature */ + alx_read_phy_dbg(hw, ALX_MIIDBG_GREENCFG2, &phy_val); + alx_write_phy_dbg(hw, ALX_MIIDBG_GREENCFG2, + phy_val | ALX_GREENCFG2_BP_GREEN); + /* Turn off half Bias */ + alx_read_phy_ext(hw, ALX_MIIEXT_PCS, ALX_MIIEXT_CLDCTRL5, + &phy_val); + alx_write_phy_ext(hw, ALX_MIIEXT_PCS, ALX_MIIEXT_CLDCTRL5, + phy_val | ALX_CLDCTRL5_BP_VD_HLFBIAS); + } + + /* set phy interrupt mask */ + alx_write_phy_reg(hw, ALX_MII_IER, ALX_IER_LINK_UP | ALX_IER_LINK_DOWN); +} + +#define ALX_PCI_CMD (PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO) + +void alx_reset_pcie(struct alx_hw *hw) +{ + u8 rev = alx_hw_revision(hw); + u32 val; + u16 val16; + + /* Workaround for PCI problem when BIOS sets MMRBC incorrectly. */ + pci_read_config_word(hw->pdev, PCI_COMMAND, &val16); + if (!(val16 & ALX_PCI_CMD) || (val16 & PCI_COMMAND_INTX_DISABLE)) { + val16 = (val16 | ALX_PCI_CMD) & ~PCI_COMMAND_INTX_DISABLE; + pci_write_config_word(hw->pdev, PCI_COMMAND, val16); + } + + /* clear WoL setting/status */ + val = alx_read_mem32(hw, ALX_WOL0); + alx_write_mem32(hw, ALX_WOL0, 0); + + val = alx_read_mem32(hw, ALX_PDLL_TRNS1); + alx_write_mem32(hw, ALX_PDLL_TRNS1, val & ~ALX_PDLL_TRNS1_D3PLLOFF_EN); + + /* mask some pcie error bits */ + val = alx_read_mem32(hw, ALX_UE_SVRT); + val &= ~(ALX_UE_SVRT_DLPROTERR | ALX_UE_SVRT_FCPROTERR); + alx_write_mem32(hw, ALX_UE_SVRT, val); + + /* wol 25M & pclk */ + val = alx_read_mem32(hw, ALX_MASTER); + if (alx_is_rev_a(rev) && alx_hw_with_cr(hw)) { + if ((val & ALX_MASTER_WAKEN_25M) == 0 || + (val & ALX_MASTER_PCLKSEL_SRDS) == 0) + alx_write_mem32(hw, ALX_MASTER, + val | ALX_MASTER_PCLKSEL_SRDS | + ALX_MASTER_WAKEN_25M); + } else { + if ((val & ALX_MASTER_WAKEN_25M) == 0 || + (val & ALX_MASTER_PCLKSEL_SRDS) != 0) + alx_write_mem32(hw, ALX_MASTER, + (val & ~ALX_MASTER_PCLKSEL_SRDS) | + ALX_MASTER_WAKEN_25M); + } + + /* ASPM setting */ + alx_enable_aspm(hw, true, true); + + udelay(10); +} + +void alx_start_mac(struct alx_hw *hw) +{ + u32 mac, txq, rxq; + + rxq = alx_read_mem32(hw, ALX_RXQ0); + alx_write_mem32(hw, ALX_RXQ0, rxq | ALX_RXQ0_EN); + txq = alx_read_mem32(hw, ALX_TXQ0); + alx_write_mem32(hw, ALX_TXQ0, txq | ALX_TXQ0_EN); + + mac = hw->rx_ctrl; + if (hw->duplex == DUPLEX_FULL) + mac |= ALX_MAC_CTRL_FULLD; + else + mac &= ~ALX_MAC_CTRL_FULLD; + ALX_SET_FIELD(mac, ALX_MAC_CTRL_SPEED, + hw->link_speed == SPEED_1000 ? ALX_MAC_CTRL_SPEED_1000 : + ALX_MAC_CTRL_SPEED_10_100); + mac |= ALX_MAC_CTRL_TX_EN | ALX_MAC_CTRL_RX_EN; + hw->rx_ctrl = mac; + alx_write_mem32(hw, ALX_MAC_CTRL, mac); +} + +void alx_cfg_mac_flowcontrol(struct alx_hw *hw, u8 fc) +{ + if (fc & ALX_FC_RX) + hw->rx_ctrl |= ALX_MAC_CTRL_RXFC_EN; + else + hw->rx_ctrl &= ~ALX_MAC_CTRL_RXFC_EN; + + if (fc & ALX_FC_TX) + hw->rx_ctrl |= ALX_MAC_CTRL_TXFC_EN; + else + hw->rx_ctrl &= ~ALX_MAC_CTRL_TXFC_EN; + + alx_write_mem32(hw, ALX_MAC_CTRL, hw->rx_ctrl); +} + +void alx_enable_aspm(struct alx_hw *hw, bool l0s_en, bool l1_en) +{ + u32 pmctrl; + u8 rev = alx_hw_revision(hw); + + pmctrl = alx_read_mem32(hw, ALX_PMCTRL); + + ALX_SET_FIELD(pmctrl, ALX_PMCTRL_LCKDET_TIMER, + ALX_PMCTRL_LCKDET_TIMER_DEF); + pmctrl |= ALX_PMCTRL_RCVR_WT_1US | + ALX_PMCTRL_L1_CLKSW_EN | + ALX_PMCTRL_L1_SRDSRX_PWD; + ALX_SET_FIELD(pmctrl, ALX_PMCTRL_L1REQ_TO, ALX_PMCTRL_L1REG_TO_DEF); + ALX_SET_FIELD(pmctrl, ALX_PMCTRL_L1_TIMER, ALX_PMCTRL_L1_TIMER_16US); + pmctrl &= ~(ALX_PMCTRL_L1_SRDS_EN | + ALX_PMCTRL_L1_SRDSPLL_EN | + ALX_PMCTRL_L1_BUFSRX_EN | + ALX_PMCTRL_SADLY_EN | + ALX_PMCTRL_HOTRST_WTEN| + ALX_PMCTRL_L0S_EN | + ALX_PMCTRL_L1_EN | + ALX_PMCTRL_ASPM_FCEN | + ALX_PMCTRL_TXL1_AFTER_L0S | + ALX_PMCTRL_RXL1_AFTER_L0S); + if (alx_is_rev_a(rev) && alx_hw_with_cr(hw)) + pmctrl |= ALX_PMCTRL_L1_SRDS_EN | ALX_PMCTRL_L1_SRDSPLL_EN; + + if (l0s_en) + pmctrl |= (ALX_PMCTRL_L0S_EN | ALX_PMCTRL_ASPM_FCEN); + if (l1_en) + pmctrl |= (ALX_PMCTRL_L1_EN | ALX_PMCTRL_ASPM_FCEN); + + alx_write_mem32(hw, ALX_PMCTRL, pmctrl); +} + + +static u32 ethadv_to_hw_cfg(struct alx_hw *hw, u32 ethadv_cfg) +{ + u32 cfg = 0; + + if (ethadv_cfg & ADVERTISED_Autoneg) { + cfg |= ALX_DRV_PHY_AUTO; + if (ethadv_cfg & ADVERTISED_10baseT_Half) + cfg |= ALX_DRV_PHY_10; + if (ethadv_cfg & ADVERTISED_10baseT_Full) + cfg |= ALX_DRV_PHY_10 | ALX_DRV_PHY_DUPLEX; + if (ethadv_cfg & ADVERTISED_100baseT_Half) + cfg |= ALX_DRV_PHY_100; + if (ethadv_cfg & ADVERTISED_100baseT_Full) + cfg |= ALX_DRV_PHY_100 | ALX_DRV_PHY_DUPLEX; + if (ethadv_cfg & ADVERTISED_1000baseT_Half) + cfg |= ALX_DRV_PHY_1000; + if (ethadv_cfg & ADVERTISED_1000baseT_Full) + cfg |= ALX_DRV_PHY_100 | ALX_DRV_PHY_DUPLEX; + if (ethadv_cfg & ADVERTISED_Pause) + cfg |= ADVERTISE_PAUSE_CAP; + if (ethadv_cfg & ADVERTISED_Asym_Pause) + cfg |= ADVERTISE_PAUSE_ASYM; + } else { + switch (ethadv_cfg) { + case ADVERTISED_10baseT_Half: + cfg |= ALX_DRV_PHY_10; + break; + case ADVERTISED_100baseT_Half: + cfg |= ALX_DRV_PHY_100; + break; + case ADVERTISED_10baseT_Full: + cfg |= ALX_DRV_PHY_10 | ALX_DRV_PHY_DUPLEX; + break; + case ADVERTISED_100baseT_Full: + cfg |= ALX_DRV_PHY_100 | ALX_DRV_PHY_DUPLEX; + break; + } + } + + return cfg; +} + +int alx_setup_speed_duplex(struct alx_hw *hw, u32 ethadv, u8 flowctrl) +{ + u16 adv, giga, cr; + u32 val; + int err = 0; + + alx_write_phy_reg(hw, ALX_MII_DBG_ADDR, 0); + val = alx_read_mem32(hw, ALX_DRV); + ALX_SET_FIELD(val, ALX_DRV_PHY, 0); + + if (ethadv & ADVERTISED_Autoneg) { + adv = ADVERTISE_CSMA; + adv |= ethtool_adv_to_mii_adv_t(ethadv); + + if (flowctrl & ALX_FC_ANEG) { + if (flowctrl & ALX_FC_RX) { + adv |= ADVERTISED_Pause; + if (!(flowctrl & ALX_FC_TX)) + adv |= ADVERTISED_Asym_Pause; + } else if (flowctrl & ALX_FC_TX) { + adv |= ADVERTISED_Asym_Pause; + } + } + giga = 0; + if (alx_hw_giga(hw)) + giga = ethtool_adv_to_mii_ctrl1000_t(ethadv); + + cr = BMCR_RESET | BMCR_ANENABLE | BMCR_ANRESTART; + + if (alx_write_phy_reg(hw, MII_ADVERTISE, adv) || + alx_write_phy_reg(hw, MII_CTRL1000, giga) || + alx_write_phy_reg(hw, MII_BMCR, cr)) + err = -EBUSY; + } else { + cr = BMCR_RESET; + if (ethadv == ADVERTISED_100baseT_Half || + ethadv == ADVERTISED_100baseT_Full) + cr |= BMCR_SPEED100; + if (ethadv == ADVERTISED_10baseT_Full || + ethadv == ADVERTISED_100baseT_Full) + cr |= BMCR_FULLDPLX; + + err = alx_write_phy_reg(hw, MII_BMCR, cr); + } + + if (!err) { + alx_write_phy_reg(hw, ALX_MII_DBG_ADDR, ALX_PHY_INITED); + val |= ethadv_to_hw_cfg(hw, ethadv); + } + + alx_write_mem32(hw, ALX_DRV, val); + + return err; +} + + +void alx_post_phy_link(struct alx_hw *hw) +{ + u16 phy_val, len, agc; + u8 revid = alx_hw_revision(hw); + bool adj_th = revid == ALX_REV_B0; + + if (revid != ALX_REV_B0 && !alx_is_rev_a(revid)) + return; + + /* 1000BT/AZ, wrong cable length */ + if (hw->link_speed != SPEED_UNKNOWN) { + alx_read_phy_ext(hw, ALX_MIIEXT_PCS, ALX_MIIEXT_CLDCTRL6, + &phy_val); + len = ALX_GET_FIELD(phy_val, ALX_CLDCTRL6_CAB_LEN); + alx_read_phy_dbg(hw, ALX_MIIDBG_AGC, &phy_val); + agc = ALX_GET_FIELD(phy_val, ALX_AGC_2_VGA); + + if ((hw->link_speed == SPEED_1000 && + (len > ALX_CLDCTRL6_CAB_LEN_SHORT1G || + (len == 0 && agc > ALX_AGC_LONG1G_LIMT))) || + (hw->link_speed == SPEED_100 && + (len > ALX_CLDCTRL6_CAB_LEN_SHORT100M || + (len == 0 && agc > ALX_AGC_LONG100M_LIMT)))) { + alx_write_phy_dbg(hw, ALX_MIIDBG_AZ_ANADECT, + ALX_AZ_ANADECT_LONG); + alx_read_phy_ext(hw, ALX_MIIEXT_ANEG, ALX_MIIEXT_AFE, + &phy_val); + alx_write_phy_ext(hw, ALX_MIIEXT_ANEG, ALX_MIIEXT_AFE, + phy_val | ALX_AFE_10BT_100M_TH); + } else { + alx_write_phy_dbg(hw, ALX_MIIDBG_AZ_ANADECT, + ALX_AZ_ANADECT_DEF); + alx_read_phy_ext(hw, ALX_MIIEXT_ANEG, + ALX_MIIEXT_AFE, &phy_val); + alx_write_phy_ext(hw, ALX_MIIEXT_ANEG, ALX_MIIEXT_AFE, + phy_val & ~ALX_AFE_10BT_100M_TH); + } + + /* threshold adjust */ + if (adj_th && hw->lnk_patch) { + if (hw->link_speed == SPEED_100) { + alx_write_phy_dbg(hw, ALX_MIIDBG_MSE16DB, + ALX_MSE16DB_UP); + } else if (hw->link_speed == SPEED_1000) { + /* + * Giga link threshold, raise the tolerance of + * noise 50% + */ + alx_read_phy_dbg(hw, ALX_MIIDBG_MSE20DB, + &phy_val); + ALX_SET_FIELD(phy_val, ALX_MSE20DB_TH, + ALX_MSE20DB_TH_HI); + alx_write_phy_dbg(hw, ALX_MIIDBG_MSE20DB, + phy_val); + } + } + } else { + alx_read_phy_ext(hw, ALX_MIIEXT_ANEG, ALX_MIIEXT_AFE, + &phy_val); + alx_write_phy_ext(hw, ALX_MIIEXT_ANEG, ALX_MIIEXT_AFE, + phy_val & ~ALX_AFE_10BT_100M_TH); + + if (adj_th && hw->lnk_patch) { + alx_write_phy_dbg(hw, ALX_MIIDBG_MSE16DB, + ALX_MSE16DB_DOWN); + alx_read_phy_dbg(hw, ALX_MIIDBG_MSE20DB, &phy_val); + ALX_SET_FIELD(phy_val, ALX_MSE20DB_TH, + ALX_MSE20DB_TH_DEF); + alx_write_phy_dbg(hw, ALX_MIIDBG_MSE20DB, phy_val); + } + } +} + +bool alx_phy_configured(struct alx_hw *hw) +{ + u32 cfg, hw_cfg; + + cfg = ethadv_to_hw_cfg(hw, hw->adv_cfg); + cfg = ALX_GET_FIELD(cfg, ALX_DRV_PHY); + hw_cfg = alx_get_phy_config(hw); + + if (hw_cfg == ALX_DRV_PHY_UNKNOWN) + return false; + + return cfg == hw_cfg; +} + +int alx_read_phy_link(struct alx_hw *hw) +{ + struct pci_dev *pdev = hw->pdev; + u16 bmsr, giga; + int err; + + err = alx_read_phy_reg(hw, MII_BMSR, &bmsr); + if (err) + return err; + + err = alx_read_phy_reg(hw, MII_BMSR, &bmsr); + if (err) + return err; + + if (!(bmsr & BMSR_LSTATUS)) { + hw->link_speed = SPEED_UNKNOWN; + hw->duplex = DUPLEX_UNKNOWN; + return 0; + } + + /* speed/duplex result is saved in PHY Specific Status Register */ + err = alx_read_phy_reg(hw, ALX_MII_GIGA_PSSR, &giga); + if (err) + return err; + + if (!(giga & ALX_GIGA_PSSR_SPD_DPLX_RESOLVED)) + goto wrong_speed; + + switch (giga & ALX_GIGA_PSSR_SPEED) { + case ALX_GIGA_PSSR_1000MBS: + hw->link_speed = SPEED_1000; + break; + case ALX_GIGA_PSSR_100MBS: + hw->link_speed = SPEED_100; + break; + case ALX_GIGA_PSSR_10MBS: + hw->link_speed = SPEED_10; + break; + default: + goto wrong_speed; + } + + hw->duplex = (giga & ALX_GIGA_PSSR_DPLX) ? DUPLEX_FULL : DUPLEX_HALF; + return 0; + +wrong_speed: + dev_err(&pdev->dev, "invalid PHY speed/duplex: 0x%x\n", giga); + return -EINVAL; +} + +int alx_clear_phy_intr(struct alx_hw *hw) +{ + u16 isr; + + /* clear interrupt status by reading it */ + return alx_read_phy_reg(hw, ALX_MII_ISR, &isr); +} + +void alx_disable_rss(struct alx_hw *hw) +{ + u32 ctrl = alx_read_mem32(hw, ALX_RXQ0); + + ctrl &= ~ALX_RXQ0_RSS_HASH_EN; + alx_write_mem32(hw, ALX_RXQ0, ctrl); +} + +void alx_configure_basic(struct alx_hw *hw) +{ + u32 val, raw_mtu, max_payload; + u16 val16; + u8 chip_rev = alx_hw_revision(hw); + + alx_set_macaddr(hw, hw->mac_addr); + + alx_write_mem32(hw, ALX_CLK_GATE, ALX_CLK_GATE_ALL); + + /* idle timeout to switch clk_125M */ + if (chip_rev >= ALX_REV_B0) + alx_write_mem32(hw, ALX_IDLE_DECISN_TIMER, + ALX_IDLE_DECISN_TIMER_DEF); + + alx_write_mem32(hw, ALX_SMB_TIMER, hw->smb_timer * 500UL); + + val = alx_read_mem32(hw, ALX_MASTER); + val |= ALX_MASTER_IRQMOD2_EN | + ALX_MASTER_IRQMOD1_EN | + ALX_MASTER_SYSALVTIMER_EN; + alx_write_mem32(hw, ALX_MASTER, val); + alx_write_mem32(hw, ALX_IRQ_MODU_TIMER, + (hw->imt >> 1) << ALX_IRQ_MODU_TIMER1_SHIFT); + /* intr re-trig timeout */ + alx_write_mem32(hw, ALX_INT_RETRIG, ALX_INT_RETRIG_TO); + /* tpd threshold to trig int */ + alx_write_mem32(hw, ALX_TINT_TPD_THRSHLD, hw->ith_tpd); + alx_write_mem32(hw, ALX_TINT_TIMER, hw->imt); + + raw_mtu = ALX_RAW_MTU(hw->mtu); + alx_write_mem32(hw, ALX_MTU, raw_mtu); + if (raw_mtu > (ALX_MTU_JUMBO_TH + ETH_FCS_LEN + VLAN_HLEN)) + hw->rx_ctrl &= ~ALX_MAC_CTRL_FAST_PAUSE; + + if (raw_mtu < ALX_TXQ1_JUMBO_TSO_TH) + val = (raw_mtu + 7) >> 3; + else + val = ALX_TXQ1_JUMBO_TSO_TH >> 3; + alx_write_mem32(hw, ALX_TXQ1, val | ALX_TXQ1_ERRLGPKT_DROP_EN); + + max_payload = pcie_get_readrq(hw->pdev) >> 8; + /* + * if BIOS had changed the default dma read max length, + * restore it to default value + */ + if (max_payload < ALX_DEV_CTRL_MAXRRS_MIN) + pcie_set_readrq(hw->pdev, 128 << ALX_DEV_CTRL_MAXRRS_MIN); + + val = ALX_TXQ_TPD_BURSTPREF_DEF << ALX_TXQ0_TPD_BURSTPREF_SHIFT | + ALX_TXQ0_MODE_ENHANCE | ALX_TXQ0_LSO_8023_EN | + ALX_TXQ0_SUPT_IPOPT | + ALX_TXQ_TXF_BURST_PREF_DEF << ALX_TXQ0_TXF_BURST_PREF_SHIFT; + alx_write_mem32(hw, ALX_TXQ0, val); + val = ALX_TXQ_TPD_BURSTPREF_DEF << ALX_HQTPD_Q1_NUMPREF_SHIFT | + ALX_TXQ_TPD_BURSTPREF_DEF << ALX_HQTPD_Q2_NUMPREF_SHIFT | + ALX_TXQ_TPD_BURSTPREF_DEF << ALX_HQTPD_Q3_NUMPREF_SHIFT | + ALX_HQTPD_BURST_EN; + alx_write_mem32(hw, ALX_HQTPD, val); + + /* rxq, flow control */ + val = alx_read_mem32(hw, ALX_SRAM5); + val = ALX_GET_FIELD(val, ALX_SRAM_RXF_LEN) << 3; + if (val > ALX_SRAM_RXF_LEN_8K) { + val16 = ALX_MTU_STD_ALGN >> 3; + val = (val - ALX_RXQ2_RXF_FLOW_CTRL_RSVD) >> 3; + } else { + val16 = ALX_MTU_STD_ALGN >> 3; + val = (val - ALX_MTU_STD_ALGN) >> 3; + } + alx_write_mem32(hw, ALX_RXQ2, + val16 << ALX_RXQ2_RXF_XOFF_THRESH_SHIFT | + val << ALX_RXQ2_RXF_XON_THRESH_SHIFT); + val = ALX_RXQ0_NUM_RFD_PREF_DEF << ALX_RXQ0_NUM_RFD_PREF_SHIFT | + ALX_RXQ0_RSS_MODE_DIS << ALX_RXQ0_RSS_MODE_SHIFT | + ALX_RXQ0_IDT_TBL_SIZE_DEF << ALX_RXQ0_IDT_TBL_SIZE_SHIFT | + ALX_RXQ0_RSS_HSTYP_ALL | ALX_RXQ0_RSS_HASH_EN | + ALX_RXQ0_IPV6_PARSE_EN; + + if (alx_hw_giga(hw)) + ALX_SET_FIELD(val, ALX_RXQ0_ASPM_THRESH, + ALX_RXQ0_ASPM_THRESH_100M); + + alx_write_mem32(hw, ALX_RXQ0, val); + + val = alx_read_mem32(hw, ALX_DMA); + val = ALX_DMA_RORDER_MODE_OUT << ALX_DMA_RORDER_MODE_SHIFT | + ALX_DMA_RREQ_PRI_DATA | + max_payload << ALX_DMA_RREQ_BLEN_SHIFT | + ALX_DMA_WDLY_CNT_DEF << ALX_DMA_WDLY_CNT_SHIFT | + ALX_DMA_RDLY_CNT_DEF << ALX_DMA_RDLY_CNT_SHIFT | + (hw->dma_chnl - 1) << ALX_DMA_RCHNL_SEL_SHIFT; + alx_write_mem32(hw, ALX_DMA, val); + + /* default multi-tx-q weights */ + val = ALX_WRR_PRI_RESTRICT_NONE << ALX_WRR_PRI_SHIFT | + 4 << ALX_WRR_PRI0_SHIFT | + 4 << ALX_WRR_PRI1_SHIFT | + 4 << ALX_WRR_PRI2_SHIFT | + 4 << ALX_WRR_PRI3_SHIFT; + alx_write_mem32(hw, ALX_WRR, val); +} + +void alx_mask_msix(struct alx_hw *hw, int index, bool mask) +{ + u32 reg, val; + + reg = ALX_MSIX_ENTRY_BASE + index * PCI_MSIX_ENTRY_SIZE + + PCI_MSIX_ENTRY_VECTOR_CTRL; + + val = mask ? PCI_MSIX_ENTRY_CTRL_MASKBIT : 0; + + alx_write_mem32(hw, reg, val); + alx_post_write(hw); +} + + +bool alx_get_phy_info(struct alx_hw *hw) +{ + u16 devs1, devs2; + + if (alx_read_phy_reg(hw, MII_PHYSID1, &hw->phy_id[0]) || + alx_read_phy_reg(hw, MII_PHYSID2, &hw->phy_id[1])) + return false; + + /* since we haven't PMA/PMD status2 register, we can't + * use mdio45_probe function for prtad and mmds. + * use fixed MMD3 to get mmds. + */ + if (alx_read_phy_ext(hw, 3, MDIO_DEVS1, &devs1) || + alx_read_phy_ext(hw, 3, MDIO_DEVS2, &devs2)) + return false; + hw->mdio.mmds = devs1 | devs2 << 16; + + return true; +} + +void alx_update_hw_stats(struct alx_hw *hw) +{ + /* RX stats */ + hw->stats.rx_ok += alx_read_mem32(hw, ALX_MIB_RX_OK); + hw->stats.rx_bcast += alx_read_mem32(hw, ALX_MIB_RX_BCAST); + hw->stats.rx_mcast += alx_read_mem32(hw, ALX_MIB_RX_MCAST); + hw->stats.rx_pause += alx_read_mem32(hw, ALX_MIB_RX_PAUSE); + hw->stats.rx_ctrl += alx_read_mem32(hw, ALX_MIB_RX_CTRL); + hw->stats.rx_fcs_err += alx_read_mem32(hw, ALX_MIB_RX_FCS_ERR); + hw->stats.rx_len_err += alx_read_mem32(hw, ALX_MIB_RX_LEN_ERR); + hw->stats.rx_byte_cnt += alx_read_mem32(hw, ALX_MIB_RX_BYTE_CNT); + hw->stats.rx_runt += alx_read_mem32(hw, ALX_MIB_RX_RUNT); + hw->stats.rx_frag += alx_read_mem32(hw, ALX_MIB_RX_FRAG); + hw->stats.rx_sz_64B += alx_read_mem32(hw, ALX_MIB_RX_SZ_64B); + hw->stats.rx_sz_127B += alx_read_mem32(hw, ALX_MIB_RX_SZ_127B); + hw->stats.rx_sz_255B += alx_read_mem32(hw, ALX_MIB_RX_SZ_255B); + hw->stats.rx_sz_511B += alx_read_mem32(hw, ALX_MIB_RX_SZ_511B); + hw->stats.rx_sz_1023B += alx_read_mem32(hw, ALX_MIB_RX_SZ_1023B); + hw->stats.rx_sz_1518B += alx_read_mem32(hw, ALX_MIB_RX_SZ_1518B); + hw->stats.rx_sz_max += alx_read_mem32(hw, ALX_MIB_RX_SZ_MAX); + hw->stats.rx_ov_sz += alx_read_mem32(hw, ALX_MIB_RX_OV_SZ); + hw->stats.rx_ov_rxf += alx_read_mem32(hw, ALX_MIB_RX_OV_RXF); + hw->stats.rx_ov_rrd += alx_read_mem32(hw, ALX_MIB_RX_OV_RRD); + hw->stats.rx_align_err += alx_read_mem32(hw, ALX_MIB_RX_ALIGN_ERR); + hw->stats.rx_bc_byte_cnt += alx_read_mem32(hw, ALX_MIB_RX_BCCNT); + hw->stats.rx_mc_byte_cnt += alx_read_mem32(hw, ALX_MIB_RX_MCCNT); + hw->stats.rx_err_addr += alx_read_mem32(hw, ALX_MIB_RX_ERRADDR); + + /* TX stats */ + hw->stats.tx_ok += alx_read_mem32(hw, ALX_MIB_TX_OK); + hw->stats.tx_bcast += alx_read_mem32(hw, ALX_MIB_TX_BCAST); + hw->stats.tx_mcast += alx_read_mem32(hw, ALX_MIB_TX_MCAST); + hw->stats.tx_pause += alx_read_mem32(hw, ALX_MIB_TX_PAUSE); + hw->stats.tx_exc_defer += alx_read_mem32(hw, ALX_MIB_TX_EXC_DEFER); + hw->stats.tx_ctrl += alx_read_mem32(hw, ALX_MIB_TX_CTRL); + hw->stats.tx_defer += alx_read_mem32(hw, ALX_MIB_TX_DEFER); + hw->stats.tx_byte_cnt += alx_read_mem32(hw, ALX_MIB_TX_BYTE_CNT); + hw->stats.tx_sz_64B += alx_read_mem32(hw, ALX_MIB_TX_SZ_64B); + hw->stats.tx_sz_127B += alx_read_mem32(hw, ALX_MIB_TX_SZ_127B); + hw->stats.tx_sz_255B += alx_read_mem32(hw, ALX_MIB_TX_SZ_255B); + hw->stats.tx_sz_511B += alx_read_mem32(hw, ALX_MIB_TX_SZ_511B); + hw->stats.tx_sz_1023B += alx_read_mem32(hw, ALX_MIB_TX_SZ_1023B); + hw->stats.tx_sz_1518B += alx_read_mem32(hw, ALX_MIB_TX_SZ_1518B); + hw->stats.tx_sz_max += alx_read_mem32(hw, ALX_MIB_TX_SZ_MAX); + hw->stats.tx_single_col += alx_read_mem32(hw, ALX_MIB_TX_SINGLE_COL); + hw->stats.tx_multi_col += alx_read_mem32(hw, ALX_MIB_TX_MULTI_COL); + hw->stats.tx_late_col += alx_read_mem32(hw, ALX_MIB_TX_LATE_COL); + hw->stats.tx_abort_col += alx_read_mem32(hw, ALX_MIB_TX_ABORT_COL); + hw->stats.tx_underrun += alx_read_mem32(hw, ALX_MIB_TX_UNDERRUN); + hw->stats.tx_trd_eop += alx_read_mem32(hw, ALX_MIB_TX_TRD_EOP); + hw->stats.tx_len_err += alx_read_mem32(hw, ALX_MIB_TX_LEN_ERR); + hw->stats.tx_trunc += alx_read_mem32(hw, ALX_MIB_TX_TRUNC); + hw->stats.tx_bc_byte_cnt += alx_read_mem32(hw, ALX_MIB_TX_BCCNT); + hw->stats.tx_mc_byte_cnt += alx_read_mem32(hw, ALX_MIB_TX_MCCNT); + + hw->stats.update += alx_read_mem32(hw, ALX_MIB_UPDATE); +} diff --git a/drivers/net/ethernet/atheros/alx/hw.h b/drivers/net/ethernet/atheros/alx/hw.h new file mode 100644 index 000000000..e42d7e094 --- /dev/null +++ b/drivers/net/ethernet/atheros/alx/hw.h @@ -0,0 +1,584 @@ +/* + * Copyright (c) 2013 Johannes Berg + * + * This file is free software: you may copy, redistribute 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 file 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, see . + * + * This file incorporates work covered by the following copyright and + * permission notice: + * + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef ALX_HW_H_ +#define ALX_HW_H_ +#include +#include +#include +#include +#include "reg.h" + +/* Transmit Packet Descriptor, contains 4 32-bit words. + * + * 31 16 0 + * +----------------+----------------+ + * | vlan-tag | buf length | + * +----------------+----------------+ + * | Word 1 | + * +----------------+----------------+ + * | Word 2: buf addr lo | + * +----------------+----------------+ + * | Word 3: buf addr hi | + * +----------------+----------------+ + * + * Word 2 and 3 combine to form a 64-bit buffer address + * + * Word 1 has three forms, depending on the state of bit 8/12/13: + * if bit8 =='1', the definition is just for custom checksum offload. + * if bit8 == '0' && bit12 == '1' && bit13 == '1', the *FIRST* descriptor + * for the skb is special for LSO V2, Word 2 become total skb length , + * Word 3 is meaningless. + * other condition, the definition is for general skb or ip/tcp/udp + * checksum or LSO(TSO) offload. + * + * Here is the depiction: + * + * 0-+ 0-+ + * 1 | 1 | + * 2 | 2 | + * 3 | Payload offset 3 | L4 header offset + * 4 | (7:0) 4 | (7:0) + * 5 | 5 | + * 6 | 6 | + * 7-+ 7-+ + * 8 Custom csum enable = 1 8 Custom csum enable = 0 + * 9 General IPv4 checksum 9 General IPv4 checksum + * 10 General TCP checksum 10 General TCP checksum + * 11 General UDP checksum 11 General UDP checksum + * 12 Large Send Segment enable 12 Large Send Segment enable + * 13 Large Send Segment type 13 Large Send Segment type + * 14 VLAN tagged 14 VLAN tagged + * 15 Insert VLAN tag 15 Insert VLAN tag + * 16 IPv4 packet 16 IPv4 packet + * 17 Ethernet frame type 17 Ethernet frame type + * 18-+ 18-+ + * 19 | 19 | + * 20 | 20 | + * 21 | Custom csum offset 21 | + * 22 | (25:18) 22 | + * 23 | 23 | MSS (30:18) + * 24 | 24 | + * 25-+ 25 | + * 26-+ 26 | + * 27 | 27 | + * 28 | Reserved 28 | + * 29 | 29 | + * 30-+ 30-+ + * 31 End of packet 31 End of packet + */ +struct alx_txd { + __le16 len; + __le16 vlan_tag; + __le32 word1; + union { + __le64 addr; + struct { + __le32 pkt_len; + __le32 resvd; + } l; + } adrl; +} __packed; + +/* tpd word 1 */ +#define TPD_CXSUMSTART_MASK 0x00FF +#define TPD_CXSUMSTART_SHIFT 0 +#define TPD_L4HDROFFSET_MASK 0x00FF +#define TPD_L4HDROFFSET_SHIFT 0 +#define TPD_CXSUM_EN_MASK 0x0001 +#define TPD_CXSUM_EN_SHIFT 8 +#define TPD_IP_XSUM_MASK 0x0001 +#define TPD_IP_XSUM_SHIFT 9 +#define TPD_TCP_XSUM_MASK 0x0001 +#define TPD_TCP_XSUM_SHIFT 10 +#define TPD_UDP_XSUM_MASK 0x0001 +#define TPD_UDP_XSUM_SHIFT 11 +#define TPD_LSO_EN_MASK 0x0001 +#define TPD_LSO_EN_SHIFT 12 +#define TPD_LSO_V2_MASK 0x0001 +#define TPD_LSO_V2_SHIFT 13 +#define TPD_VLTAGGED_MASK 0x0001 +#define TPD_VLTAGGED_SHIFT 14 +#define TPD_INS_VLTAG_MASK 0x0001 +#define TPD_INS_VLTAG_SHIFT 15 +#define TPD_IPV4_MASK 0x0001 +#define TPD_IPV4_SHIFT 16 +#define TPD_ETHTYPE_MASK 0x0001 +#define TPD_ETHTYPE_SHIFT 17 +#define TPD_CXSUMOFFSET_MASK 0x00FF +#define TPD_CXSUMOFFSET_SHIFT 18 +#define TPD_MSS_MASK 0x1FFF +#define TPD_MSS_SHIFT 18 +#define TPD_EOP_MASK 0x0001 +#define TPD_EOP_SHIFT 31 + +#define DESC_GET(_x, _name) ((_x) >> _name##SHIFT & _name##MASK) + +/* Receive Free Descriptor */ +struct alx_rfd { + __le64 addr; /* data buffer address, length is + * declared in register --- every + * buffer has the same size + */ +} __packed; + +/* Receive Return Descriptor, contains 4 32-bit words. + * + * 31 16 0 + * +----------------+----------------+ + * | Word 0 | + * +----------------+----------------+ + * | Word 1: RSS Hash value | + * +----------------+----------------+ + * | Word 2 | + * +----------------+----------------+ + * | Word 3 | + * +----------------+----------------+ + * + * Word 0 depiction & Word 2 depiction: + * + * 0--+ 0--+ + * 1 | 1 | + * 2 | 2 | + * 3 | 3 | + * 4 | 4 | + * 5 | 5 | + * 6 | 6 | + * 7 | IP payload checksum 7 | VLAN tag + * 8 | (15:0) 8 | (15:0) + * 9 | 9 | + * 10 | 10 | + * 11 | 11 | + * 12 | 12 | + * 13 | 13 | + * 14 | 14 | + * 15-+ 15-+ + * 16-+ 16-+ + * 17 | Number of RFDs 17 | + * 18 | (19:16) 18 | + * 19-+ 19 | Protocol ID + * 20-+ 20 | (23:16) + * 21 | 21 | + * 22 | 22 | + * 23 | 23-+ + * 24 | 24 | Reserved + * 25 | Start index of RFD-ring 25-+ + * 26 | (31:20) 26 | RSS Q-num (27:25) + * 27 | 27-+ + * 28 | 28-+ + * 29 | 29 | RSS Hash algorithm + * 30 | 30 | (31:28) + * 31-+ 31-+ + * + * Word 3 depiction: + * + * 0--+ + * 1 | + * 2 | + * 3 | + * 4 | + * 5 | + * 6 | + * 7 | Packet length (include FCS) + * 8 | (13:0) + * 9 | + * 10 | + * 11 | + * 12 | + * 13-+ + * 14 L4 Header checksum error + * 15 IPv4 checksum error + * 16 VLAN tagged + * 17-+ + * 18 | Protocol ID (19:17) + * 19-+ + * 20 Receive error summary + * 21 FCS(CRC) error + * 22 Frame alignment error + * 23 Truncated packet + * 24 Runt packet + * 25 Incomplete packet due to insufficient rx-desc + * 26 Broadcast packet + * 27 Multicast packet + * 28 Ethernet type (EII or 802.3) + * 29 FIFO overflow + * 30 Length error (for 802.3, length field mismatch with actual len) + * 31 Updated, indicate to driver that this RRD is refreshed. + */ +struct alx_rrd { + __le32 word0; + __le32 rss_hash; + __le32 word2; + __le32 word3; +} __packed; + +/* rrd word 0 */ +#define RRD_XSUM_MASK 0xFFFF +#define RRD_XSUM_SHIFT 0 +#define RRD_NOR_MASK 0x000F +#define RRD_NOR_SHIFT 16 +#define RRD_SI_MASK 0x0FFF +#define RRD_SI_SHIFT 20 + +/* rrd word 2 */ +#define RRD_VLTAG_MASK 0xFFFF +#define RRD_VLTAG_SHIFT 0 +#define RRD_PID_MASK 0x00FF +#define RRD_PID_SHIFT 16 +/* non-ip packet */ +#define RRD_PID_NONIP 0 +/* ipv4(only) */ +#define RRD_PID_IPV4 1 +/* tcp/ipv6 */ +#define RRD_PID_IPV6TCP 2 +/* tcp/ipv4 */ +#define RRD_PID_IPV4TCP 3 +/* udp/ipv6 */ +#define RRD_PID_IPV6UDP 4 +/* udp/ipv4 */ +#define RRD_PID_IPV4UDP 5 +/* ipv6(only) */ +#define RRD_PID_IPV6 6 +/* LLDP packet */ +#define RRD_PID_LLDP 7 +/* 1588 packet */ +#define RRD_PID_1588 8 +#define RRD_RSSQ_MASK 0x0007 +#define RRD_RSSQ_SHIFT 25 +#define RRD_RSSALG_MASK 0x000F +#define RRD_RSSALG_SHIFT 28 +#define RRD_RSSALG_TCPV6 0x1 +#define RRD_RSSALG_IPV6 0x2 +#define RRD_RSSALG_TCPV4 0x4 +#define RRD_RSSALG_IPV4 0x8 + +/* rrd word 3 */ +#define RRD_PKTLEN_MASK 0x3FFF +#define RRD_PKTLEN_SHIFT 0 +#define RRD_ERR_L4_MASK 0x0001 +#define RRD_ERR_L4_SHIFT 14 +#define RRD_ERR_IPV4_MASK 0x0001 +#define RRD_ERR_IPV4_SHIFT 15 +#define RRD_VLTAGGED_MASK 0x0001 +#define RRD_VLTAGGED_SHIFT 16 +#define RRD_OLD_PID_MASK 0x0007 +#define RRD_OLD_PID_SHIFT 17 +#define RRD_ERR_RES_MASK 0x0001 +#define RRD_ERR_RES_SHIFT 20 +#define RRD_ERR_FCS_MASK 0x0001 +#define RRD_ERR_FCS_SHIFT 21 +#define RRD_ERR_FAE_MASK 0x0001 +#define RRD_ERR_FAE_SHIFT 22 +#define RRD_ERR_TRUNC_MASK 0x0001 +#define RRD_ERR_TRUNC_SHIFT 23 +#define RRD_ERR_RUNT_MASK 0x0001 +#define RRD_ERR_RUNT_SHIFT 24 +#define RRD_ERR_ICMP_MASK 0x0001 +#define RRD_ERR_ICMP_SHIFT 25 +#define RRD_BCAST_MASK 0x0001 +#define RRD_BCAST_SHIFT 26 +#define RRD_MCAST_MASK 0x0001 +#define RRD_MCAST_SHIFT 27 +#define RRD_ETHTYPE_MASK 0x0001 +#define RRD_ETHTYPE_SHIFT 28 +#define RRD_ERR_FIFOV_MASK 0x0001 +#define RRD_ERR_FIFOV_SHIFT 29 +#define RRD_ERR_LEN_MASK 0x0001 +#define RRD_ERR_LEN_SHIFT 30 +#define RRD_UPDATED_MASK 0x0001 +#define RRD_UPDATED_SHIFT 31 + + +#define ALX_MAX_SETUP_LNK_CYCLE 50 + +/* for FlowControl */ +#define ALX_FC_RX 0x01 +#define ALX_FC_TX 0x02 +#define ALX_FC_ANEG 0x04 + +/* for sleep control */ +#define ALX_SLEEP_WOL_PHY 0x00000001 +#define ALX_SLEEP_WOL_MAGIC 0x00000002 +#define ALX_SLEEP_CIFS 0x00000004 +#define ALX_SLEEP_ACTIVE (ALX_SLEEP_WOL_PHY | \ + ALX_SLEEP_WOL_MAGIC | \ + ALX_SLEEP_CIFS) + +/* for RSS hash type */ +#define ALX_RSS_HASH_TYPE_IPV4 0x1 +#define ALX_RSS_HASH_TYPE_IPV4_TCP 0x2 +#define ALX_RSS_HASH_TYPE_IPV6 0x4 +#define ALX_RSS_HASH_TYPE_IPV6_TCP 0x8 +#define ALX_RSS_HASH_TYPE_ALL (ALX_RSS_HASH_TYPE_IPV4 | \ + ALX_RSS_HASH_TYPE_IPV4_TCP | \ + ALX_RSS_HASH_TYPE_IPV6 | \ + ALX_RSS_HASH_TYPE_IPV6_TCP) +#define ALX_FRAME_PAD 16 +#define ALX_RAW_MTU(_mtu) (_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN) +#define ALX_MAX_FRAME_LEN(_mtu) (ALIGN((ALX_RAW_MTU(_mtu) + ALX_FRAME_PAD), 8)) +#define ALX_DEF_RXBUF_SIZE ALX_MAX_FRAME_LEN(1500) +#define ALX_MAX_JUMBO_PKT_SIZE (9*1024) +#define ALX_MAX_TSO_PKT_SIZE (7*1024) +#define ALX_MAX_FRAME_SIZE ALX_MAX_JUMBO_PKT_SIZE + +#define ALX_MAX_RX_QUEUES 8 +#define ALX_MAX_TX_QUEUES 4 +#define ALX_MAX_HANDLED_INTRS 5 + +#define ALX_ISR_MISC (ALX_ISR_PCIE_LNKDOWN | \ + ALX_ISR_DMAW | \ + ALX_ISR_DMAR | \ + ALX_ISR_SMB | \ + ALX_ISR_MANU | \ + ALX_ISR_TIMER) + +#define ALX_ISR_FATAL (ALX_ISR_PCIE_LNKDOWN | \ + ALX_ISR_DMAW | ALX_ISR_DMAR) + +#define ALX_ISR_ALERT (ALX_ISR_RXF_OV | \ + ALX_ISR_TXF_UR | \ + ALX_ISR_RFD_UR) + +#define ALX_ISR_ALL_QUEUES (ALX_ISR_TX_Q0 | \ + ALX_ISR_TX_Q1 | \ + ALX_ISR_TX_Q2 | \ + ALX_ISR_TX_Q3 | \ + ALX_ISR_RX_Q0 | \ + ALX_ISR_RX_Q1 | \ + ALX_ISR_RX_Q2 | \ + ALX_ISR_RX_Q3 | \ + ALX_ISR_RX_Q4 | \ + ALX_ISR_RX_Q5 | \ + ALX_ISR_RX_Q6 | \ + ALX_ISR_RX_Q7) + +/* Statistics counters collected by the MAC + * + * The order of the fields must match the strings in alx_gstrings_stats + * All stats fields should be u64 + * See ethtool.c + */ +struct alx_hw_stats { + /* rx */ + u64 rx_ok; /* good RX packets */ + u64 rx_bcast; /* good RX broadcast packets */ + u64 rx_mcast; /* good RX multicast packets */ + u64 rx_pause; /* RX pause frames */ + u64 rx_ctrl; /* RX control packets other than pause frames */ + u64 rx_fcs_err; /* RX packets with bad FCS */ + u64 rx_len_err; /* RX packets with length != actual size */ + u64 rx_byte_cnt; /* good bytes received. FCS is NOT included */ + u64 rx_runt; /* RX packets < 64 bytes with good FCS */ + u64 rx_frag; /* RX packets < 64 bytes with bad FCS */ + u64 rx_sz_64B; /* 64 byte RX packets */ + u64 rx_sz_127B; /* 65-127 byte RX packets */ + u64 rx_sz_255B; /* 128-255 byte RX packets */ + u64 rx_sz_511B; /* 256-511 byte RX packets */ + u64 rx_sz_1023B; /* 512-1023 byte RX packets */ + u64 rx_sz_1518B; /* 1024-1518 byte RX packets */ + u64 rx_sz_max; /* 1519 byte to MTU RX packets */ + u64 rx_ov_sz; /* truncated RX packets, size > MTU */ + u64 rx_ov_rxf; /* frames dropped due to RX FIFO overflow */ + u64 rx_ov_rrd; /* frames dropped due to RRD overflow */ + u64 rx_align_err; /* alignment errors */ + u64 rx_bc_byte_cnt; /* RX broadcast bytes, excluding FCS */ + u64 rx_mc_byte_cnt; /* RX multicast bytes, excluding FCS */ + u64 rx_err_addr; /* packets dropped due to address filtering */ + + /* tx */ + u64 tx_ok; /* good TX packets */ + u64 tx_bcast; /* good TX broadcast packets */ + u64 tx_mcast; /* good TX multicast packets */ + u64 tx_pause; /* TX pause frames */ + u64 tx_exc_defer; /* TX packets deferred excessively */ + u64 tx_ctrl; /* TX control frames, excluding pause frames */ + u64 tx_defer; /* TX packets deferred */ + u64 tx_byte_cnt; /* bytes transmitted, FCS is NOT included */ + u64 tx_sz_64B; /* 64 byte TX packets */ + u64 tx_sz_127B; /* 65-127 byte TX packets */ + u64 tx_sz_255B; /* 128-255 byte TX packets */ + u64 tx_sz_511B; /* 256-511 byte TX packets */ + u64 tx_sz_1023B; /* 512-1023 byte TX packets */ + u64 tx_sz_1518B; /* 1024-1518 byte TX packets */ + u64 tx_sz_max; /* 1519 byte to MTU TX packets */ + u64 tx_single_col; /* packets TX after a single collision */ + u64 tx_multi_col; /* packets TX after multiple collisions */ + u64 tx_late_col; /* TX packets with late collisions */ + u64 tx_abort_col; /* TX packets aborted w/excessive collisions */ + u64 tx_underrun; /* TX packets aborted due to TX FIFO underrun + * or TRD FIFO underrun + */ + u64 tx_trd_eop; /* reads beyond the EOP into the next frame + * when TRD was not written timely + */ + u64 tx_len_err; /* TX packets where length != actual size */ + u64 tx_trunc; /* TX packets truncated due to size > MTU */ + u64 tx_bc_byte_cnt; /* broadcast bytes transmitted, excluding FCS */ + u64 tx_mc_byte_cnt; /* multicast bytes transmitted, excluding FCS */ + u64 update; +}; + + +/* maximum interrupt vectors for msix */ +#define ALX_MAX_MSIX_INTRS 16 + +#define ALX_GET_FIELD(_data, _field) \ + (((_data) >> _field ## _SHIFT) & _field ## _MASK) + +#define ALX_SET_FIELD(_data, _field, _value) do { \ + (_data) &= ~(_field ## _MASK << _field ## _SHIFT); \ + (_data) |= ((_value) & _field ## _MASK) << _field ## _SHIFT;\ + } while (0) + +struct alx_hw { + struct pci_dev *pdev; + u8 __iomem *hw_addr; + + /* current & permanent mac addr */ + u8 mac_addr[ETH_ALEN]; + u8 perm_addr[ETH_ALEN]; + + u16 mtu; + u16 imt; + u8 dma_chnl; + u8 max_dma_chnl; + /* tpd threshold to trig INT */ + u32 ith_tpd; + u32 rx_ctrl; + u32 mc_hash[2]; + + u32 smb_timer; + /* SPEED_* + DUPLEX_*, SPEED_UNKNOWN if link is down */ + int link_speed; + u8 duplex; + + /* auto-neg advertisement or force mode config */ + u8 flowctrl; + u32 adv_cfg; + + spinlock_t mdio_lock; + struct mdio_if_info mdio; + u16 phy_id[2]; + + /* PHY link patch flag */ + bool lnk_patch; + + /* cumulated stats from the hardware (registers are cleared on read) */ + struct alx_hw_stats stats; +}; + +static inline int alx_hw_revision(struct alx_hw *hw) +{ + return hw->pdev->revision >> ALX_PCI_REVID_SHIFT; +} + +static inline bool alx_hw_with_cr(struct alx_hw *hw) +{ + return hw->pdev->revision & 1; +} + +static inline bool alx_hw_giga(struct alx_hw *hw) +{ + return hw->pdev->device & 1; +} + +static inline void alx_write_mem8(struct alx_hw *hw, u32 reg, u8 val) +{ + writeb(val, hw->hw_addr + reg); +} + +static inline void alx_write_mem16(struct alx_hw *hw, u32 reg, u16 val) +{ + writew(val, hw->hw_addr + reg); +} + +static inline u16 alx_read_mem16(struct alx_hw *hw, u32 reg) +{ + return readw(hw->hw_addr + reg); +} + +static inline void alx_write_mem32(struct alx_hw *hw, u32 reg, u32 val) +{ + writel(val, hw->hw_addr + reg); +} + +static inline u32 alx_read_mem32(struct alx_hw *hw, u32 reg) +{ + return readl(hw->hw_addr + reg); +} + +static inline void alx_post_write(struct alx_hw *hw) +{ + readl(hw->hw_addr); +} + +int alx_get_perm_macaddr(struct alx_hw *hw, u8 *addr); +void alx_reset_phy(struct alx_hw *hw); +void alx_reset_pcie(struct alx_hw *hw); +void alx_enable_aspm(struct alx_hw *hw, bool l0s_en, bool l1_en); +int alx_setup_speed_duplex(struct alx_hw *hw, u32 ethadv, u8 flowctrl); +void alx_post_phy_link(struct alx_hw *hw); +int alx_read_phy_reg(struct alx_hw *hw, u16 reg, u16 *phy_data); +int alx_write_phy_reg(struct alx_hw *hw, u16 reg, u16 phy_data); +int alx_read_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 *pdata); +int alx_write_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 data); +int alx_read_phy_link(struct alx_hw *hw); +int alx_clear_phy_intr(struct alx_hw *hw); +void alx_cfg_mac_flowcontrol(struct alx_hw *hw, u8 fc); +void alx_start_mac(struct alx_hw *hw); +int alx_reset_mac(struct alx_hw *hw); +void alx_set_macaddr(struct alx_hw *hw, const u8 *addr); +bool alx_phy_configured(struct alx_hw *hw); +void alx_configure_basic(struct alx_hw *hw); +void alx_mask_msix(struct alx_hw *hw, int index, bool mask); +void alx_disable_rss(struct alx_hw *hw); +bool alx_get_phy_info(struct alx_hw *hw); +void alx_update_hw_stats(struct alx_hw *hw); + +static inline u32 alx_speed_to_ethadv(int speed, u8 duplex) +{ + if (speed == SPEED_1000 && duplex == DUPLEX_FULL) + return ADVERTISED_1000baseT_Full; + if (speed == SPEED_100 && duplex == DUPLEX_FULL) + return ADVERTISED_100baseT_Full; + if (speed == SPEED_100 && duplex== DUPLEX_HALF) + return ADVERTISED_100baseT_Half; + if (speed == SPEED_10 && duplex == DUPLEX_FULL) + return ADVERTISED_10baseT_Full; + if (speed == SPEED_10 && duplex == DUPLEX_HALF) + return ADVERTISED_10baseT_Half; + return 0; +} + +#endif diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c new file mode 100644 index 000000000..d30d11872 --- /dev/null +++ b/drivers/net/ethernet/atheros/alx/main.c @@ -0,0 +1,2067 @@ +/* + * Copyright (c) 2013, 2021 Johannes Berg + * + * This file is free software: you may copy, redistribute 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 file 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, see . + * + * This file incorporates work covered by the following copyright and + * permission notice: + * + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "alx.h" +#include "hw.h" +#include "reg.h" + +static const char alx_drv_name[] = "alx"; + +static void alx_free_txbuf(struct alx_tx_queue *txq, int entry) +{ + struct alx_buffer *txb = &txq->bufs[entry]; + + if (dma_unmap_len(txb, size)) { + dma_unmap_single(txq->dev, + dma_unmap_addr(txb, dma), + dma_unmap_len(txb, size), + DMA_TO_DEVICE); + dma_unmap_len_set(txb, size, 0); + } + + if (txb->skb) { + dev_kfree_skb_any(txb->skb); + txb->skb = NULL; + } +} + +static int alx_refill_rx_ring(struct alx_priv *alx, gfp_t gfp) +{ + struct alx_rx_queue *rxq = alx->qnapi[0]->rxq; + struct sk_buff *skb; + struct alx_buffer *cur_buf; + dma_addr_t dma; + u16 cur, next, count = 0; + + next = cur = rxq->write_idx; + if (++next == alx->rx_ringsz) + next = 0; + cur_buf = &rxq->bufs[cur]; + + while (!cur_buf->skb && next != rxq->read_idx) { + struct alx_rfd *rfd = &rxq->rfd[cur]; + + /* + * When DMA RX address is set to something like + * 0x....fc0, it will be very likely to cause DMA + * RFD overflow issue. + * + * To work around it, we apply rx skb with 64 bytes + * longer space, and offset the address whenever + * 0x....fc0 is detected. + */ + skb = __netdev_alloc_skb(alx->dev, alx->rxbuf_size + 64, gfp); + if (!skb) + break; + + if (((unsigned long)skb->data & 0xfff) == 0xfc0) + skb_reserve(skb, 64); + + dma = dma_map_single(&alx->hw.pdev->dev, + skb->data, alx->rxbuf_size, + DMA_FROM_DEVICE); + if (dma_mapping_error(&alx->hw.pdev->dev, dma)) { + dev_kfree_skb(skb); + break; + } + + /* Unfortunately, RX descriptor buffers must be 4-byte + * aligned, so we can't use IP alignment. + */ + if (WARN_ON(dma & 3)) { + dev_kfree_skb(skb); + break; + } + + cur_buf->skb = skb; + dma_unmap_len_set(cur_buf, size, alx->rxbuf_size); + dma_unmap_addr_set(cur_buf, dma, dma); + rfd->addr = cpu_to_le64(dma); + + cur = next; + if (++next == alx->rx_ringsz) + next = 0; + cur_buf = &rxq->bufs[cur]; + count++; + } + + if (count) { + /* flush all updates before updating hardware */ + wmb(); + rxq->write_idx = cur; + alx_write_mem16(&alx->hw, ALX_RFD_PIDX, cur); + } + + return count; +} + +static struct alx_tx_queue *alx_tx_queue_mapping(struct alx_priv *alx, + struct sk_buff *skb) +{ + unsigned int r_idx = skb->queue_mapping; + + if (r_idx >= alx->num_txq) + r_idx = r_idx % alx->num_txq; + + return alx->qnapi[r_idx]->txq; +} + +static struct netdev_queue *alx_get_tx_queue(const struct alx_tx_queue *txq) +{ + return netdev_get_tx_queue(txq->netdev, txq->queue_idx); +} + +static inline int alx_tpd_avail(struct alx_tx_queue *txq) +{ + if (txq->write_idx >= txq->read_idx) + return txq->count + txq->read_idx - txq->write_idx - 1; + return txq->read_idx - txq->write_idx - 1; +} + +static bool alx_clean_tx_irq(struct alx_tx_queue *txq) +{ + struct alx_priv *alx; + struct netdev_queue *tx_queue; + u16 hw_read_idx, sw_read_idx; + unsigned int total_bytes = 0, total_packets = 0; + int budget = ALX_DEFAULT_TX_WORK; + + alx = netdev_priv(txq->netdev); + tx_queue = alx_get_tx_queue(txq); + + sw_read_idx = txq->read_idx; + hw_read_idx = alx_read_mem16(&alx->hw, txq->c_reg); + + if (sw_read_idx != hw_read_idx) { + while (sw_read_idx != hw_read_idx && budget > 0) { + struct sk_buff *skb; + + skb = txq->bufs[sw_read_idx].skb; + if (skb) { + total_bytes += skb->len; + total_packets++; + budget--; + } + + alx_free_txbuf(txq, sw_read_idx); + + if (++sw_read_idx == txq->count) + sw_read_idx = 0; + } + txq->read_idx = sw_read_idx; + + netdev_tx_completed_queue(tx_queue, total_packets, total_bytes); + } + + if (netif_tx_queue_stopped(tx_queue) && netif_carrier_ok(alx->dev) && + alx_tpd_avail(txq) > txq->count / 4) + netif_tx_wake_queue(tx_queue); + + return sw_read_idx == hw_read_idx; +} + +static void alx_schedule_link_check(struct alx_priv *alx) +{ + schedule_work(&alx->link_check_wk); +} + +static void alx_schedule_reset(struct alx_priv *alx) +{ + schedule_work(&alx->reset_wk); +} + +static int alx_clean_rx_irq(struct alx_rx_queue *rxq, int budget) +{ + struct alx_priv *alx; + struct alx_rrd *rrd; + struct alx_buffer *rxb; + struct sk_buff *skb; + u16 length, rfd_cleaned = 0; + int work = 0; + + alx = netdev_priv(rxq->netdev); + + while (work < budget) { + rrd = &rxq->rrd[rxq->rrd_read_idx]; + if (!(rrd->word3 & cpu_to_le32(1 << RRD_UPDATED_SHIFT))) + break; + rrd->word3 &= ~cpu_to_le32(1 << RRD_UPDATED_SHIFT); + + if (ALX_GET_FIELD(le32_to_cpu(rrd->word0), + RRD_SI) != rxq->read_idx || + ALX_GET_FIELD(le32_to_cpu(rrd->word0), + RRD_NOR) != 1) { + alx_schedule_reset(alx); + return work; + } + + rxb = &rxq->bufs[rxq->read_idx]; + dma_unmap_single(rxq->dev, + dma_unmap_addr(rxb, dma), + dma_unmap_len(rxb, size), + DMA_FROM_DEVICE); + dma_unmap_len_set(rxb, size, 0); + skb = rxb->skb; + rxb->skb = NULL; + + if (rrd->word3 & cpu_to_le32(1 << RRD_ERR_RES_SHIFT) || + rrd->word3 & cpu_to_le32(1 << RRD_ERR_LEN_SHIFT)) { + rrd->word3 = 0; + dev_kfree_skb_any(skb); + goto next_pkt; + } + + length = ALX_GET_FIELD(le32_to_cpu(rrd->word3), + RRD_PKTLEN) - ETH_FCS_LEN; + skb_put(skb, length); + skb->protocol = eth_type_trans(skb, rxq->netdev); + + skb_checksum_none_assert(skb); + if (alx->dev->features & NETIF_F_RXCSUM && + !(rrd->word3 & (cpu_to_le32(1 << RRD_ERR_L4_SHIFT) | + cpu_to_le32(1 << RRD_ERR_IPV4_SHIFT)))) { + switch (ALX_GET_FIELD(le32_to_cpu(rrd->word2), + RRD_PID)) { + case RRD_PID_IPV6UDP: + case RRD_PID_IPV4UDP: + case RRD_PID_IPV4TCP: + case RRD_PID_IPV6TCP: + skb->ip_summed = CHECKSUM_UNNECESSARY; + break; + } + } + + napi_gro_receive(&rxq->np->napi, skb); + work++; + +next_pkt: + if (++rxq->read_idx == rxq->count) + rxq->read_idx = 0; + if (++rxq->rrd_read_idx == rxq->count) + rxq->rrd_read_idx = 0; + + if (++rfd_cleaned > ALX_RX_ALLOC_THRESH) + rfd_cleaned -= alx_refill_rx_ring(alx, GFP_ATOMIC); + } + + if (rfd_cleaned) + alx_refill_rx_ring(alx, GFP_ATOMIC); + + return work; +} + +static int alx_poll(struct napi_struct *napi, int budget) +{ + struct alx_napi *np = container_of(napi, struct alx_napi, napi); + struct alx_priv *alx = np->alx; + struct alx_hw *hw = &alx->hw; + unsigned long flags; + bool tx_complete = true; + int work = 0; + + if (np->txq) + tx_complete = alx_clean_tx_irq(np->txq); + if (np->rxq) + work = alx_clean_rx_irq(np->rxq, budget); + + if (!tx_complete || work == budget) + return budget; + + napi_complete_done(&np->napi, work); + + /* enable interrupt */ + if (alx->hw.pdev->msix_enabled) { + alx_mask_msix(hw, np->vec_idx, false); + } else { + spin_lock_irqsave(&alx->irq_lock, flags); + alx->int_mask |= ALX_ISR_TX_Q0 | ALX_ISR_RX_Q0; + alx_write_mem32(hw, ALX_IMR, alx->int_mask); + spin_unlock_irqrestore(&alx->irq_lock, flags); + } + + alx_post_write(hw); + + return work; +} + +static bool alx_intr_handle_misc(struct alx_priv *alx, u32 intr) +{ + struct alx_hw *hw = &alx->hw; + + if (intr & ALX_ISR_FATAL) { + netif_warn(alx, hw, alx->dev, + "fatal interrupt 0x%x, resetting\n", intr); + alx_schedule_reset(alx); + return true; + } + + if (intr & ALX_ISR_ALERT) + netdev_warn(alx->dev, "alert interrupt: 0x%x\n", intr); + + if (intr & ALX_ISR_PHY) { + /* suppress PHY interrupt, because the source + * is from PHY internal. only the internal status + * is cleared, the interrupt status could be cleared. + */ + alx->int_mask &= ~ALX_ISR_PHY; + alx_write_mem32(hw, ALX_IMR, alx->int_mask); + alx_schedule_link_check(alx); + } + + return false; +} + +static irqreturn_t alx_intr_handle(struct alx_priv *alx, u32 intr) +{ + struct alx_hw *hw = &alx->hw; + + spin_lock(&alx->irq_lock); + + /* ACK interrupt */ + alx_write_mem32(hw, ALX_ISR, intr | ALX_ISR_DIS); + intr &= alx->int_mask; + + if (alx_intr_handle_misc(alx, intr)) + goto out; + + if (intr & (ALX_ISR_TX_Q0 | ALX_ISR_RX_Q0)) { + napi_schedule(&alx->qnapi[0]->napi); + /* mask rx/tx interrupt, enable them when napi complete */ + alx->int_mask &= ~ALX_ISR_ALL_QUEUES; + alx_write_mem32(hw, ALX_IMR, alx->int_mask); + } + + alx_write_mem32(hw, ALX_ISR, 0); + + out: + spin_unlock(&alx->irq_lock); + return IRQ_HANDLED; +} + +static irqreturn_t alx_intr_msix_ring(int irq, void *data) +{ + struct alx_napi *np = data; + struct alx_hw *hw = &np->alx->hw; + + /* mask interrupt to ACK chip */ + alx_mask_msix(hw, np->vec_idx, true); + /* clear interrupt status */ + alx_write_mem32(hw, ALX_ISR, np->vec_mask); + + napi_schedule(&np->napi); + + return IRQ_HANDLED; +} + +static irqreturn_t alx_intr_msix_misc(int irq, void *data) +{ + struct alx_priv *alx = data; + struct alx_hw *hw = &alx->hw; + u32 intr; + + /* mask interrupt to ACK chip */ + alx_mask_msix(hw, 0, true); + + /* read interrupt status */ + intr = alx_read_mem32(hw, ALX_ISR); + intr &= (alx->int_mask & ~ALX_ISR_ALL_QUEUES); + + if (alx_intr_handle_misc(alx, intr)) + return IRQ_HANDLED; + + /* clear interrupt status */ + alx_write_mem32(hw, ALX_ISR, intr); + + /* enable interrupt again */ + alx_mask_msix(hw, 0, false); + + return IRQ_HANDLED; +} + +static irqreturn_t alx_intr_msi(int irq, void *data) +{ + struct alx_priv *alx = data; + + return alx_intr_handle(alx, alx_read_mem32(&alx->hw, ALX_ISR)); +} + +static irqreturn_t alx_intr_legacy(int irq, void *data) +{ + struct alx_priv *alx = data; + struct alx_hw *hw = &alx->hw; + u32 intr; + + intr = alx_read_mem32(hw, ALX_ISR); + + if (intr & ALX_ISR_DIS || !(intr & alx->int_mask)) + return IRQ_NONE; + + return alx_intr_handle(alx, intr); +} + +static const u16 txring_header_reg[] = {ALX_TPD_PRI0_ADDR_LO, + ALX_TPD_PRI1_ADDR_LO, + ALX_TPD_PRI2_ADDR_LO, + ALX_TPD_PRI3_ADDR_LO}; + +static void alx_init_ring_ptrs(struct alx_priv *alx) +{ + struct alx_hw *hw = &alx->hw; + u32 addr_hi = ((u64)alx->descmem.dma) >> 32; + struct alx_napi *np; + int i; + + for (i = 0; i < alx->num_napi; i++) { + np = alx->qnapi[i]; + if (np->txq) { + np->txq->read_idx = 0; + np->txq->write_idx = 0; + alx_write_mem32(hw, + txring_header_reg[np->txq->queue_idx], + np->txq->tpd_dma); + } + + if (np->rxq) { + np->rxq->read_idx = 0; + np->rxq->write_idx = 0; + np->rxq->rrd_read_idx = 0; + alx_write_mem32(hw, ALX_RRD_ADDR_LO, np->rxq->rrd_dma); + alx_write_mem32(hw, ALX_RFD_ADDR_LO, np->rxq->rfd_dma); + } + } + + alx_write_mem32(hw, ALX_TX_BASE_ADDR_HI, addr_hi); + alx_write_mem32(hw, ALX_TPD_RING_SZ, alx->tx_ringsz); + + alx_write_mem32(hw, ALX_RX_BASE_ADDR_HI, addr_hi); + alx_write_mem32(hw, ALX_RRD_RING_SZ, alx->rx_ringsz); + alx_write_mem32(hw, ALX_RFD_RING_SZ, alx->rx_ringsz); + alx_write_mem32(hw, ALX_RFD_BUF_SZ, alx->rxbuf_size); + + /* load these pointers into the chip */ + alx_write_mem32(hw, ALX_SRAM9, ALX_SRAM_LOAD_PTR); +} + +static void alx_free_txring_buf(struct alx_tx_queue *txq) +{ + int i; + + if (!txq->bufs) + return; + + for (i = 0; i < txq->count; i++) + alx_free_txbuf(txq, i); + + memset(txq->bufs, 0, txq->count * sizeof(struct alx_buffer)); + memset(txq->tpd, 0, txq->count * sizeof(struct alx_txd)); + txq->write_idx = 0; + txq->read_idx = 0; + + netdev_tx_reset_queue(alx_get_tx_queue(txq)); +} + +static void alx_free_rxring_buf(struct alx_rx_queue *rxq) +{ + struct alx_buffer *cur_buf; + u16 i; + + if (!rxq->bufs) + return; + + for (i = 0; i < rxq->count; i++) { + cur_buf = rxq->bufs + i; + if (cur_buf->skb) { + dma_unmap_single(rxq->dev, + dma_unmap_addr(cur_buf, dma), + dma_unmap_len(cur_buf, size), + DMA_FROM_DEVICE); + dev_kfree_skb(cur_buf->skb); + cur_buf->skb = NULL; + dma_unmap_len_set(cur_buf, size, 0); + dma_unmap_addr_set(cur_buf, dma, 0); + } + } + + rxq->write_idx = 0; + rxq->read_idx = 0; + rxq->rrd_read_idx = 0; +} + +static void alx_free_buffers(struct alx_priv *alx) +{ + int i; + + for (i = 0; i < alx->num_txq; i++) + if (alx->qnapi[i] && alx->qnapi[i]->txq) + alx_free_txring_buf(alx->qnapi[i]->txq); + + if (alx->qnapi[0] && alx->qnapi[0]->rxq) + alx_free_rxring_buf(alx->qnapi[0]->rxq); +} + +static int alx_reinit_rings(struct alx_priv *alx) +{ + alx_free_buffers(alx); + + alx_init_ring_ptrs(alx); + + if (!alx_refill_rx_ring(alx, GFP_KERNEL)) + return -ENOMEM; + + return 0; +} + +static void alx_add_mc_addr(struct alx_hw *hw, const u8 *addr, u32 *mc_hash) +{ + u32 crc32, bit, reg; + + crc32 = ether_crc(ETH_ALEN, addr); + reg = (crc32 >> 31) & 0x1; + bit = (crc32 >> 26) & 0x1F; + + mc_hash[reg] |= BIT(bit); +} + +static void __alx_set_rx_mode(struct net_device *netdev) +{ + struct alx_priv *alx = netdev_priv(netdev); + struct alx_hw *hw = &alx->hw; + struct netdev_hw_addr *ha; + u32 mc_hash[2] = {}; + + if (!(netdev->flags & IFF_ALLMULTI)) { + netdev_for_each_mc_addr(ha, netdev) + alx_add_mc_addr(hw, ha->addr, mc_hash); + + alx_write_mem32(hw, ALX_HASH_TBL0, mc_hash[0]); + alx_write_mem32(hw, ALX_HASH_TBL1, mc_hash[1]); + } + + hw->rx_ctrl &= ~(ALX_MAC_CTRL_MULTIALL_EN | ALX_MAC_CTRL_PROMISC_EN); + if (netdev->flags & IFF_PROMISC) + hw->rx_ctrl |= ALX_MAC_CTRL_PROMISC_EN; + if (netdev->flags & IFF_ALLMULTI) + hw->rx_ctrl |= ALX_MAC_CTRL_MULTIALL_EN; + + alx_write_mem32(hw, ALX_MAC_CTRL, hw->rx_ctrl); +} + +static void alx_set_rx_mode(struct net_device *netdev) +{ + __alx_set_rx_mode(netdev); +} + +static int alx_set_mac_address(struct net_device *netdev, void *data) +{ + struct alx_priv *alx = netdev_priv(netdev); + struct alx_hw *hw = &alx->hw; + struct sockaddr *addr = data; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + if (netdev->addr_assign_type & NET_ADDR_RANDOM) + netdev->addr_assign_type ^= NET_ADDR_RANDOM; + + eth_hw_addr_set(netdev, addr->sa_data); + memcpy(hw->mac_addr, addr->sa_data, netdev->addr_len); + alx_set_macaddr(hw, hw->mac_addr); + + return 0; +} + +static int alx_alloc_tx_ring(struct alx_priv *alx, struct alx_tx_queue *txq, + int offset) +{ + txq->bufs = kcalloc(txq->count, sizeof(struct alx_buffer), GFP_KERNEL); + if (!txq->bufs) + return -ENOMEM; + + txq->tpd = alx->descmem.virt + offset; + txq->tpd_dma = alx->descmem.dma + offset; + offset += sizeof(struct alx_txd) * txq->count; + + return offset; +} + +static int alx_alloc_rx_ring(struct alx_priv *alx, struct alx_rx_queue *rxq, + int offset) +{ + rxq->bufs = kcalloc(rxq->count, sizeof(struct alx_buffer), GFP_KERNEL); + if (!rxq->bufs) + return -ENOMEM; + + rxq->rrd = alx->descmem.virt + offset; + rxq->rrd_dma = alx->descmem.dma + offset; + offset += sizeof(struct alx_rrd) * rxq->count; + + rxq->rfd = alx->descmem.virt + offset; + rxq->rfd_dma = alx->descmem.dma + offset; + offset += sizeof(struct alx_rfd) * rxq->count; + + return offset; +} + +static int alx_alloc_rings(struct alx_priv *alx) +{ + int i, offset = 0; + + /* physical tx/rx ring descriptors + * + * Allocate them as a single chunk because they must not cross a + * 4G boundary (hardware has a single register for high 32 bits + * of addresses only) + */ + alx->descmem.size = sizeof(struct alx_txd) * alx->tx_ringsz * + alx->num_txq + + sizeof(struct alx_rrd) * alx->rx_ringsz + + sizeof(struct alx_rfd) * alx->rx_ringsz; + alx->descmem.virt = dma_alloc_coherent(&alx->hw.pdev->dev, + alx->descmem.size, + &alx->descmem.dma, GFP_KERNEL); + if (!alx->descmem.virt) + return -ENOMEM; + + /* alignment requirements */ + BUILD_BUG_ON(sizeof(struct alx_txd) % 8); + BUILD_BUG_ON(sizeof(struct alx_rrd) % 8); + + for (i = 0; i < alx->num_txq; i++) { + offset = alx_alloc_tx_ring(alx, alx->qnapi[i]->txq, offset); + if (offset < 0) { + netdev_err(alx->dev, "Allocation of tx buffer failed!\n"); + return -ENOMEM; + } + } + + offset = alx_alloc_rx_ring(alx, alx->qnapi[0]->rxq, offset); + if (offset < 0) { + netdev_err(alx->dev, "Allocation of rx buffer failed!\n"); + return -ENOMEM; + } + + return 0; +} + +static void alx_free_rings(struct alx_priv *alx) +{ + int i; + + alx_free_buffers(alx); + + for (i = 0; i < alx->num_txq; i++) + if (alx->qnapi[i] && alx->qnapi[i]->txq) + kfree(alx->qnapi[i]->txq->bufs); + + if (alx->qnapi[0] && alx->qnapi[0]->rxq) + kfree(alx->qnapi[0]->rxq->bufs); + + if (alx->descmem.virt) + dma_free_coherent(&alx->hw.pdev->dev, + alx->descmem.size, + alx->descmem.virt, + alx->descmem.dma); +} + +static void alx_free_napis(struct alx_priv *alx) +{ + struct alx_napi *np; + int i; + + for (i = 0; i < alx->num_napi; i++) { + np = alx->qnapi[i]; + if (!np) + continue; + + netif_napi_del(&np->napi); + kfree(np->txq); + kfree(np->rxq); + kfree(np); + alx->qnapi[i] = NULL; + } +} + +static const u16 tx_pidx_reg[] = {ALX_TPD_PRI0_PIDX, ALX_TPD_PRI1_PIDX, + ALX_TPD_PRI2_PIDX, ALX_TPD_PRI3_PIDX}; +static const u16 tx_cidx_reg[] = {ALX_TPD_PRI0_CIDX, ALX_TPD_PRI1_CIDX, + ALX_TPD_PRI2_CIDX, ALX_TPD_PRI3_CIDX}; +static const u32 tx_vect_mask[] = {ALX_ISR_TX_Q0, ALX_ISR_TX_Q1, + ALX_ISR_TX_Q2, ALX_ISR_TX_Q3}; +static const u32 rx_vect_mask[] = {ALX_ISR_RX_Q0, ALX_ISR_RX_Q1, + ALX_ISR_RX_Q2, ALX_ISR_RX_Q3, + ALX_ISR_RX_Q4, ALX_ISR_RX_Q5, + ALX_ISR_RX_Q6, ALX_ISR_RX_Q7}; + +static int alx_alloc_napis(struct alx_priv *alx) +{ + struct alx_napi *np; + struct alx_rx_queue *rxq; + struct alx_tx_queue *txq; + int i; + + alx->int_mask &= ~ALX_ISR_ALL_QUEUES; + + /* allocate alx_napi structures */ + for (i = 0; i < alx->num_napi; i++) { + np = kzalloc(sizeof(struct alx_napi), GFP_KERNEL); + if (!np) + goto err_out; + + np->alx = alx; + netif_napi_add(alx->dev, &np->napi, alx_poll); + alx->qnapi[i] = np; + } + + /* allocate tx queues */ + for (i = 0; i < alx->num_txq; i++) { + np = alx->qnapi[i]; + txq = kzalloc(sizeof(*txq), GFP_KERNEL); + if (!txq) + goto err_out; + + np->txq = txq; + txq->p_reg = tx_pidx_reg[i]; + txq->c_reg = tx_cidx_reg[i]; + txq->queue_idx = i; + txq->count = alx->tx_ringsz; + txq->netdev = alx->dev; + txq->dev = &alx->hw.pdev->dev; + np->vec_mask |= tx_vect_mask[i]; + alx->int_mask |= tx_vect_mask[i]; + } + + /* allocate rx queues */ + np = alx->qnapi[0]; + rxq = kzalloc(sizeof(*rxq), GFP_KERNEL); + if (!rxq) + goto err_out; + + np->rxq = rxq; + rxq->np = alx->qnapi[0]; + rxq->queue_idx = 0; + rxq->count = alx->rx_ringsz; + rxq->netdev = alx->dev; + rxq->dev = &alx->hw.pdev->dev; + np->vec_mask |= rx_vect_mask[0]; + alx->int_mask |= rx_vect_mask[0]; + + return 0; + +err_out: + netdev_err(alx->dev, "error allocating internal structures\n"); + alx_free_napis(alx); + return -ENOMEM; +} + +static const int txq_vec_mapping_shift[] = { + 0, ALX_MSI_MAP_TBL1_TXQ0_SHIFT, + 0, ALX_MSI_MAP_TBL1_TXQ1_SHIFT, + 1, ALX_MSI_MAP_TBL2_TXQ2_SHIFT, + 1, ALX_MSI_MAP_TBL2_TXQ3_SHIFT, +}; + +static void alx_config_vector_mapping(struct alx_priv *alx) +{ + struct alx_hw *hw = &alx->hw; + u32 tbl[2] = {0, 0}; + int i, vector, idx, shift; + + if (alx->hw.pdev->msix_enabled) { + /* tx mappings */ + for (i = 0, vector = 1; i < alx->num_txq; i++, vector++) { + idx = txq_vec_mapping_shift[i * 2]; + shift = txq_vec_mapping_shift[i * 2 + 1]; + tbl[idx] |= vector << shift; + } + + /* rx mapping */ + tbl[0] |= 1 << ALX_MSI_MAP_TBL1_RXQ0_SHIFT; + } + + alx_write_mem32(hw, ALX_MSI_MAP_TBL1, tbl[0]); + alx_write_mem32(hw, ALX_MSI_MAP_TBL2, tbl[1]); + alx_write_mem32(hw, ALX_MSI_ID_MAP, 0); +} + +static int alx_enable_msix(struct alx_priv *alx) +{ + int err, num_vec, num_txq, num_rxq; + + num_txq = min_t(int, num_online_cpus(), ALX_MAX_TX_QUEUES); + num_rxq = 1; + num_vec = max_t(int, num_txq, num_rxq) + 1; + + err = pci_alloc_irq_vectors(alx->hw.pdev, num_vec, num_vec, + PCI_IRQ_MSIX); + if (err < 0) { + netdev_warn(alx->dev, "Enabling MSI-X interrupts failed!\n"); + return err; + } + + alx->num_vec = num_vec; + alx->num_napi = num_vec - 1; + alx->num_txq = num_txq; + alx->num_rxq = num_rxq; + + return err; +} + +static int alx_request_msix(struct alx_priv *alx) +{ + struct net_device *netdev = alx->dev; + int i, err, vector = 0, free_vector = 0; + + err = request_irq(pci_irq_vector(alx->hw.pdev, 0), alx_intr_msix_misc, + 0, netdev->name, alx); + if (err) + goto out_err; + + for (i = 0; i < alx->num_napi; i++) { + struct alx_napi *np = alx->qnapi[i]; + + vector++; + + if (np->txq && np->rxq) + sprintf(np->irq_lbl, "%s-TxRx-%u", netdev->name, + np->txq->queue_idx); + else if (np->txq) + sprintf(np->irq_lbl, "%s-tx-%u", netdev->name, + np->txq->queue_idx); + else if (np->rxq) + sprintf(np->irq_lbl, "%s-rx-%u", netdev->name, + np->rxq->queue_idx); + else + sprintf(np->irq_lbl, "%s-unused", netdev->name); + + np->vec_idx = vector; + err = request_irq(pci_irq_vector(alx->hw.pdev, vector), + alx_intr_msix_ring, 0, np->irq_lbl, np); + if (err) + goto out_free; + } + return 0; + +out_free: + free_irq(pci_irq_vector(alx->hw.pdev, free_vector++), alx); + + vector--; + for (i = 0; i < vector; i++) + free_irq(pci_irq_vector(alx->hw.pdev,free_vector++), + alx->qnapi[i]); + +out_err: + return err; +} + +static int alx_init_intr(struct alx_priv *alx) +{ + int ret; + + ret = pci_alloc_irq_vectors(alx->hw.pdev, 1, 1, + PCI_IRQ_MSI | PCI_IRQ_LEGACY); + if (ret < 0) + return ret; + + alx->num_vec = 1; + alx->num_napi = 1; + alx->num_txq = 1; + alx->num_rxq = 1; + return 0; +} + +static void alx_irq_enable(struct alx_priv *alx) +{ + struct alx_hw *hw = &alx->hw; + int i; + + /* level-1 interrupt switch */ + alx_write_mem32(hw, ALX_ISR, 0); + alx_write_mem32(hw, ALX_IMR, alx->int_mask); + alx_post_write(hw); + + if (alx->hw.pdev->msix_enabled) { + /* enable all msix irqs */ + for (i = 0; i < alx->num_vec; i++) + alx_mask_msix(hw, i, false); + } +} + +static void alx_irq_disable(struct alx_priv *alx) +{ + struct alx_hw *hw = &alx->hw; + int i; + + alx_write_mem32(hw, ALX_ISR, ALX_ISR_DIS); + alx_write_mem32(hw, ALX_IMR, 0); + alx_post_write(hw); + + if (alx->hw.pdev->msix_enabled) { + for (i = 0; i < alx->num_vec; i++) { + alx_mask_msix(hw, i, true); + synchronize_irq(pci_irq_vector(alx->hw.pdev, i)); + } + } else { + synchronize_irq(pci_irq_vector(alx->hw.pdev, 0)); + } +} + +static int alx_realloc_resources(struct alx_priv *alx) +{ + int err; + + alx_free_rings(alx); + alx_free_napis(alx); + pci_free_irq_vectors(alx->hw.pdev); + + err = alx_init_intr(alx); + if (err) + return err; + + err = alx_alloc_napis(alx); + if (err) + return err; + + err = alx_alloc_rings(alx); + if (err) + return err; + + return 0; +} + +static int alx_request_irq(struct alx_priv *alx) +{ + struct pci_dev *pdev = alx->hw.pdev; + struct alx_hw *hw = &alx->hw; + int err; + u32 msi_ctrl; + + msi_ctrl = (hw->imt >> 1) << ALX_MSI_RETRANS_TM_SHIFT; + + if (alx->hw.pdev->msix_enabled) { + alx_write_mem32(hw, ALX_MSI_RETRANS_TIMER, msi_ctrl); + err = alx_request_msix(alx); + if (!err) + goto out; + + /* msix request failed, realloc resources */ + err = alx_realloc_resources(alx); + if (err) + goto out; + } + + if (alx->hw.pdev->msi_enabled) { + alx_write_mem32(hw, ALX_MSI_RETRANS_TIMER, + msi_ctrl | ALX_MSI_MASK_SEL_LINE); + err = request_irq(pci_irq_vector(pdev, 0), alx_intr_msi, 0, + alx->dev->name, alx); + if (!err) + goto out; + + /* fall back to legacy interrupt */ + pci_free_irq_vectors(alx->hw.pdev); + } + + alx_write_mem32(hw, ALX_MSI_RETRANS_TIMER, 0); + err = request_irq(pci_irq_vector(pdev, 0), alx_intr_legacy, IRQF_SHARED, + alx->dev->name, alx); +out: + if (!err) + alx_config_vector_mapping(alx); + else + netdev_err(alx->dev, "IRQ registration failed!\n"); + return err; +} + +static void alx_free_irq(struct alx_priv *alx) +{ + struct pci_dev *pdev = alx->hw.pdev; + int i; + + free_irq(pci_irq_vector(pdev, 0), alx); + if (alx->hw.pdev->msix_enabled) { + for (i = 0; i < alx->num_napi; i++) + free_irq(pci_irq_vector(pdev, i + 1), alx->qnapi[i]); + } + + pci_free_irq_vectors(pdev); +} + +static int alx_identify_hw(struct alx_priv *alx) +{ + struct alx_hw *hw = &alx->hw; + int rev = alx_hw_revision(hw); + + if (rev > ALX_REV_C0) + return -EINVAL; + + hw->max_dma_chnl = rev >= ALX_REV_B0 ? 4 : 2; + + return 0; +} + +static int alx_init_sw(struct alx_priv *alx) +{ + struct pci_dev *pdev = alx->hw.pdev; + struct alx_hw *hw = &alx->hw; + int err; + + err = alx_identify_hw(alx); + if (err) { + dev_err(&pdev->dev, "unrecognized chip, aborting\n"); + return err; + } + + alx->hw.lnk_patch = + pdev->device == ALX_DEV_ID_AR8161 && + pdev->subsystem_vendor == PCI_VENDOR_ID_ATTANSIC && + pdev->subsystem_device == 0x0091 && + pdev->revision == 0; + + hw->smb_timer = 400; + hw->mtu = alx->dev->mtu; + alx->rxbuf_size = ALX_MAX_FRAME_LEN(hw->mtu); + /* MTU range: 34 - 9256 */ + alx->dev->min_mtu = 34; + alx->dev->max_mtu = ALX_MAX_FRAME_LEN(ALX_MAX_FRAME_SIZE); + alx->tx_ringsz = 256; + alx->rx_ringsz = 512; + hw->imt = 200; + alx->int_mask = ALX_ISR_MISC; + hw->dma_chnl = hw->max_dma_chnl; + hw->ith_tpd = alx->tx_ringsz / 3; + hw->link_speed = SPEED_UNKNOWN; + hw->duplex = DUPLEX_UNKNOWN; + hw->adv_cfg = ADVERTISED_Autoneg | + ADVERTISED_10baseT_Half | + ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Full | + ADVERTISED_100baseT_Half | + ADVERTISED_1000baseT_Full; + hw->flowctrl = ALX_FC_ANEG | ALX_FC_RX | ALX_FC_TX; + + hw->rx_ctrl = ALX_MAC_CTRL_WOLSPED_SWEN | + ALX_MAC_CTRL_MHASH_ALG_HI5B | + ALX_MAC_CTRL_BRD_EN | + ALX_MAC_CTRL_PCRCE | + ALX_MAC_CTRL_CRCE | + ALX_MAC_CTRL_RXFC_EN | + ALX_MAC_CTRL_TXFC_EN | + 7 << ALX_MAC_CTRL_PRMBLEN_SHIFT; + mutex_init(&alx->mtx); + + return 0; +} + + +static netdev_features_t alx_fix_features(struct net_device *netdev, + netdev_features_t features) +{ + if (netdev->mtu > ALX_MAX_TSO_PKT_SIZE) + features &= ~(NETIF_F_TSO | NETIF_F_TSO6); + + return features; +} + +static void alx_netif_stop(struct alx_priv *alx) +{ + int i; + + netif_trans_update(alx->dev); + if (netif_carrier_ok(alx->dev)) { + netif_carrier_off(alx->dev); + netif_tx_disable(alx->dev); + for (i = 0; i < alx->num_napi; i++) + napi_disable(&alx->qnapi[i]->napi); + } +} + +static void alx_halt(struct alx_priv *alx) +{ + struct alx_hw *hw = &alx->hw; + + lockdep_assert_held(&alx->mtx); + + alx_netif_stop(alx); + hw->link_speed = SPEED_UNKNOWN; + hw->duplex = DUPLEX_UNKNOWN; + + alx_reset_mac(hw); + + /* disable l0s/l1 */ + alx_enable_aspm(hw, false, false); + alx_irq_disable(alx); + alx_free_buffers(alx); +} + +static void alx_configure(struct alx_priv *alx) +{ + struct alx_hw *hw = &alx->hw; + + alx_configure_basic(hw); + alx_disable_rss(hw); + __alx_set_rx_mode(alx->dev); + + alx_write_mem32(hw, ALX_MAC_CTRL, hw->rx_ctrl); +} + +static void alx_activate(struct alx_priv *alx) +{ + lockdep_assert_held(&alx->mtx); + + /* hardware setting lost, restore it */ + alx_reinit_rings(alx); + alx_configure(alx); + + /* clear old interrupts */ + alx_write_mem32(&alx->hw, ALX_ISR, ~(u32)ALX_ISR_DIS); + + alx_irq_enable(alx); + + alx_schedule_link_check(alx); +} + +static void alx_reinit(struct alx_priv *alx) +{ + lockdep_assert_held(&alx->mtx); + + alx_halt(alx); + alx_activate(alx); +} + +static int alx_change_mtu(struct net_device *netdev, int mtu) +{ + struct alx_priv *alx = netdev_priv(netdev); + int max_frame = ALX_MAX_FRAME_LEN(mtu); + + netdev->mtu = mtu; + alx->hw.mtu = mtu; + alx->rxbuf_size = max(max_frame, ALX_DEF_RXBUF_SIZE); + netdev_update_features(netdev); + if (netif_running(netdev)) { + mutex_lock(&alx->mtx); + alx_reinit(alx); + mutex_unlock(&alx->mtx); + } + return 0; +} + +static void alx_netif_start(struct alx_priv *alx) +{ + int i; + + netif_tx_wake_all_queues(alx->dev); + for (i = 0; i < alx->num_napi; i++) + napi_enable(&alx->qnapi[i]->napi); + netif_carrier_on(alx->dev); +} + +static int __alx_open(struct alx_priv *alx, bool resume) +{ + int err; + + err = alx_enable_msix(alx); + if (err < 0) { + err = alx_init_intr(alx); + if (err) + return err; + } + + if (!resume) + netif_carrier_off(alx->dev); + + err = alx_alloc_napis(alx); + if (err) + goto out_disable_adv_intr; + + err = alx_alloc_rings(alx); + if (err) + goto out_free_rings; + + alx_configure(alx); + + err = alx_request_irq(alx); + if (err) + goto out_free_rings; + + /* must be called after alx_request_irq because the chip stops working + * if we copy the dma addresses in alx_init_ring_ptrs twice when + * requesting msi-x interrupts failed + */ + alx_reinit_rings(alx); + + netif_set_real_num_tx_queues(alx->dev, alx->num_txq); + netif_set_real_num_rx_queues(alx->dev, alx->num_rxq); + + /* clear old interrupts */ + alx_write_mem32(&alx->hw, ALX_ISR, ~(u32)ALX_ISR_DIS); + + alx_irq_enable(alx); + + if (!resume) + netif_tx_start_all_queues(alx->dev); + + alx_schedule_link_check(alx); + return 0; + +out_free_rings: + alx_free_rings(alx); + alx_free_napis(alx); +out_disable_adv_intr: + pci_free_irq_vectors(alx->hw.pdev); + return err; +} + +static void __alx_stop(struct alx_priv *alx) +{ + lockdep_assert_held(&alx->mtx); + + alx_free_irq(alx); + + cancel_work_sync(&alx->link_check_wk); + cancel_work_sync(&alx->reset_wk); + + alx_halt(alx); + alx_free_rings(alx); + alx_free_napis(alx); +} + +static const char *alx_speed_desc(struct alx_hw *hw) +{ + switch (alx_speed_to_ethadv(hw->link_speed, hw->duplex)) { + case ADVERTISED_1000baseT_Full: + return "1 Gbps Full"; + case ADVERTISED_100baseT_Full: + return "100 Mbps Full"; + case ADVERTISED_100baseT_Half: + return "100 Mbps Half"; + case ADVERTISED_10baseT_Full: + return "10 Mbps Full"; + case ADVERTISED_10baseT_Half: + return "10 Mbps Half"; + default: + return "Unknown speed"; + } +} + +static void alx_check_link(struct alx_priv *alx) +{ + struct alx_hw *hw = &alx->hw; + unsigned long flags; + int old_speed; + int err; + + lockdep_assert_held(&alx->mtx); + + /* clear PHY internal interrupt status, otherwise the main + * interrupt status will be asserted forever + */ + alx_clear_phy_intr(hw); + + old_speed = hw->link_speed; + err = alx_read_phy_link(hw); + if (err < 0) + goto reset; + + spin_lock_irqsave(&alx->irq_lock, flags); + alx->int_mask |= ALX_ISR_PHY; + alx_write_mem32(hw, ALX_IMR, alx->int_mask); + spin_unlock_irqrestore(&alx->irq_lock, flags); + + if (old_speed == hw->link_speed) + return; + + if (hw->link_speed != SPEED_UNKNOWN) { + netif_info(alx, link, alx->dev, + "NIC Up: %s\n", alx_speed_desc(hw)); + alx_post_phy_link(hw); + alx_enable_aspm(hw, true, true); + alx_start_mac(hw); + + if (old_speed == SPEED_UNKNOWN) + alx_netif_start(alx); + } else { + /* link is now down */ + alx_netif_stop(alx); + netif_info(alx, link, alx->dev, "Link Down\n"); + err = alx_reset_mac(hw); + if (err) + goto reset; + alx_irq_disable(alx); + + /* MAC reset causes all HW settings to be lost, restore all */ + err = alx_reinit_rings(alx); + if (err) + goto reset; + alx_configure(alx); + alx_enable_aspm(hw, false, true); + alx_post_phy_link(hw); + alx_irq_enable(alx); + } + + return; + +reset: + alx_schedule_reset(alx); +} + +static int alx_open(struct net_device *netdev) +{ + struct alx_priv *alx = netdev_priv(netdev); + int ret; + + mutex_lock(&alx->mtx); + ret = __alx_open(alx, false); + mutex_unlock(&alx->mtx); + + return ret; +} + +static int alx_stop(struct net_device *netdev) +{ + struct alx_priv *alx = netdev_priv(netdev); + + mutex_lock(&alx->mtx); + __alx_stop(alx); + mutex_unlock(&alx->mtx); + + return 0; +} + +static void alx_link_check(struct work_struct *work) +{ + struct alx_priv *alx; + + alx = container_of(work, struct alx_priv, link_check_wk); + + mutex_lock(&alx->mtx); + alx_check_link(alx); + mutex_unlock(&alx->mtx); +} + +static void alx_reset(struct work_struct *work) +{ + struct alx_priv *alx = container_of(work, struct alx_priv, reset_wk); + + mutex_lock(&alx->mtx); + alx_reinit(alx); + mutex_unlock(&alx->mtx); +} + +static int alx_tpd_req(struct sk_buff *skb) +{ + int num; + + num = skb_shinfo(skb)->nr_frags + 1; + /* we need one extra descriptor for LSOv2 */ + if (skb_is_gso(skb) && skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) + num++; + + return num; +} + +static int alx_tx_csum(struct sk_buff *skb, struct alx_txd *first) +{ + u8 cso, css; + + if (skb->ip_summed != CHECKSUM_PARTIAL) + return 0; + + cso = skb_checksum_start_offset(skb); + if (cso & 1) + return -EINVAL; + + css = cso + skb->csum_offset; + first->word1 |= cpu_to_le32((cso >> 1) << TPD_CXSUMSTART_SHIFT); + first->word1 |= cpu_to_le32((css >> 1) << TPD_CXSUMOFFSET_SHIFT); + first->word1 |= cpu_to_le32(1 << TPD_CXSUM_EN_SHIFT); + + return 0; +} + +static int alx_tso(struct sk_buff *skb, struct alx_txd *first) +{ + int err; + + if (skb->ip_summed != CHECKSUM_PARTIAL) + return 0; + + if (!skb_is_gso(skb)) + return 0; + + err = skb_cow_head(skb, 0); + if (err < 0) + return err; + + if (skb->protocol == htons(ETH_P_IP)) { + struct iphdr *iph = ip_hdr(skb); + + iph->check = 0; + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, + 0, IPPROTO_TCP, 0); + first->word1 |= 1 << TPD_IPV4_SHIFT; + } else if (skb_is_gso_v6(skb)) { + tcp_v6_gso_csum_prep(skb); + /* LSOv2: the first TPD only provides the packet length */ + first->adrl.l.pkt_len = skb->len; + first->word1 |= 1 << TPD_LSO_V2_SHIFT; + } + + first->word1 |= 1 << TPD_LSO_EN_SHIFT; + first->word1 |= (skb_transport_offset(skb) & + TPD_L4HDROFFSET_MASK) << TPD_L4HDROFFSET_SHIFT; + first->word1 |= (skb_shinfo(skb)->gso_size & + TPD_MSS_MASK) << TPD_MSS_SHIFT; + return 1; +} + +static int alx_map_tx_skb(struct alx_tx_queue *txq, struct sk_buff *skb) +{ + struct alx_txd *tpd, *first_tpd; + dma_addr_t dma; + int maplen, f, first_idx = txq->write_idx; + + first_tpd = &txq->tpd[txq->write_idx]; + tpd = first_tpd; + + if (tpd->word1 & (1 << TPD_LSO_V2_SHIFT)) { + if (++txq->write_idx == txq->count) + txq->write_idx = 0; + + tpd = &txq->tpd[txq->write_idx]; + tpd->len = first_tpd->len; + tpd->vlan_tag = first_tpd->vlan_tag; + tpd->word1 = first_tpd->word1; + } + + maplen = skb_headlen(skb); + dma = dma_map_single(txq->dev, skb->data, maplen, + DMA_TO_DEVICE); + if (dma_mapping_error(txq->dev, dma)) + goto err_dma; + + dma_unmap_len_set(&txq->bufs[txq->write_idx], size, maplen); + dma_unmap_addr_set(&txq->bufs[txq->write_idx], dma, dma); + + tpd->adrl.addr = cpu_to_le64(dma); + tpd->len = cpu_to_le16(maplen); + + for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) { + skb_frag_t *frag = &skb_shinfo(skb)->frags[f]; + + if (++txq->write_idx == txq->count) + txq->write_idx = 0; + tpd = &txq->tpd[txq->write_idx]; + + tpd->word1 = first_tpd->word1; + + maplen = skb_frag_size(frag); + dma = skb_frag_dma_map(txq->dev, frag, 0, + maplen, DMA_TO_DEVICE); + if (dma_mapping_error(txq->dev, dma)) + goto err_dma; + dma_unmap_len_set(&txq->bufs[txq->write_idx], size, maplen); + dma_unmap_addr_set(&txq->bufs[txq->write_idx], dma, dma); + + tpd->adrl.addr = cpu_to_le64(dma); + tpd->len = cpu_to_le16(maplen); + } + + /* last TPD, set EOP flag and store skb */ + tpd->word1 |= cpu_to_le32(1 << TPD_EOP_SHIFT); + txq->bufs[txq->write_idx].skb = skb; + + if (++txq->write_idx == txq->count) + txq->write_idx = 0; + + return 0; + +err_dma: + f = first_idx; + while (f != txq->write_idx) { + alx_free_txbuf(txq, f); + if (++f == txq->count) + f = 0; + } + return -ENOMEM; +} + +static netdev_tx_t alx_start_xmit_ring(struct sk_buff *skb, + struct alx_tx_queue *txq) +{ + struct alx_priv *alx; + struct alx_txd *first; + int tso; + + alx = netdev_priv(txq->netdev); + + if (alx_tpd_avail(txq) < alx_tpd_req(skb)) { + netif_tx_stop_queue(alx_get_tx_queue(txq)); + goto drop; + } + + first = &txq->tpd[txq->write_idx]; + memset(first, 0, sizeof(*first)); + + tso = alx_tso(skb, first); + if (tso < 0) + goto drop; + else if (!tso && alx_tx_csum(skb, first)) + goto drop; + + if (alx_map_tx_skb(txq, skb) < 0) + goto drop; + + netdev_tx_sent_queue(alx_get_tx_queue(txq), skb->len); + + /* flush updates before updating hardware */ + wmb(); + alx_write_mem16(&alx->hw, txq->p_reg, txq->write_idx); + + if (alx_tpd_avail(txq) < txq->count / 8) + netif_tx_stop_queue(alx_get_tx_queue(txq)); + + return NETDEV_TX_OK; + +drop: + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; +} + +static netdev_tx_t alx_start_xmit(struct sk_buff *skb, + struct net_device *netdev) +{ + struct alx_priv *alx = netdev_priv(netdev); + return alx_start_xmit_ring(skb, alx_tx_queue_mapping(alx, skb)); +} + +static void alx_tx_timeout(struct net_device *dev, unsigned int txqueue) +{ + struct alx_priv *alx = netdev_priv(dev); + + alx_schedule_reset(alx); +} + +static int alx_mdio_read(struct net_device *netdev, + int prtad, int devad, u16 addr) +{ + struct alx_priv *alx = netdev_priv(netdev); + struct alx_hw *hw = &alx->hw; + u16 val; + int err; + + if (prtad != hw->mdio.prtad) + return -EINVAL; + + if (devad == MDIO_DEVAD_NONE) + err = alx_read_phy_reg(hw, addr, &val); + else + err = alx_read_phy_ext(hw, devad, addr, &val); + + if (err) + return err; + return val; +} + +static int alx_mdio_write(struct net_device *netdev, + int prtad, int devad, u16 addr, u16 val) +{ + struct alx_priv *alx = netdev_priv(netdev); + struct alx_hw *hw = &alx->hw; + + if (prtad != hw->mdio.prtad) + return -EINVAL; + + if (devad == MDIO_DEVAD_NONE) + return alx_write_phy_reg(hw, addr, val); + + return alx_write_phy_ext(hw, devad, addr, val); +} + +static int alx_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) +{ + struct alx_priv *alx = netdev_priv(netdev); + + if (!netif_running(netdev)) + return -EAGAIN; + + return mdio_mii_ioctl(&alx->hw.mdio, if_mii(ifr), cmd); +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void alx_poll_controller(struct net_device *netdev) +{ + struct alx_priv *alx = netdev_priv(netdev); + int i; + + if (alx->hw.pdev->msix_enabled) { + alx_intr_msix_misc(0, alx); + for (i = 0; i < alx->num_txq; i++) + alx_intr_msix_ring(0, alx->qnapi[i]); + } else if (alx->hw.pdev->msi_enabled) + alx_intr_msi(0, alx); + else + alx_intr_legacy(0, alx); +} +#endif + +static void alx_get_stats64(struct net_device *dev, + struct rtnl_link_stats64 *net_stats) +{ + struct alx_priv *alx = netdev_priv(dev); + struct alx_hw_stats *hw_stats = &alx->hw.stats; + + spin_lock(&alx->stats_lock); + + alx_update_hw_stats(&alx->hw); + + net_stats->tx_bytes = hw_stats->tx_byte_cnt; + net_stats->rx_bytes = hw_stats->rx_byte_cnt; + net_stats->multicast = hw_stats->rx_mcast; + net_stats->collisions = hw_stats->tx_single_col + + hw_stats->tx_multi_col + + hw_stats->tx_late_col + + hw_stats->tx_abort_col; + + net_stats->rx_errors = hw_stats->rx_frag + + hw_stats->rx_fcs_err + + hw_stats->rx_len_err + + hw_stats->rx_ov_sz + + hw_stats->rx_ov_rrd + + hw_stats->rx_align_err + + hw_stats->rx_ov_rxf; + + net_stats->rx_fifo_errors = hw_stats->rx_ov_rxf; + net_stats->rx_length_errors = hw_stats->rx_len_err; + net_stats->rx_crc_errors = hw_stats->rx_fcs_err; + net_stats->rx_frame_errors = hw_stats->rx_align_err; + net_stats->rx_dropped = hw_stats->rx_ov_rrd; + + net_stats->tx_errors = hw_stats->tx_late_col + + hw_stats->tx_abort_col + + hw_stats->tx_underrun + + hw_stats->tx_trunc; + + net_stats->tx_aborted_errors = hw_stats->tx_abort_col; + net_stats->tx_fifo_errors = hw_stats->tx_underrun; + net_stats->tx_window_errors = hw_stats->tx_late_col; + + net_stats->tx_packets = hw_stats->tx_ok + net_stats->tx_errors; + net_stats->rx_packets = hw_stats->rx_ok + net_stats->rx_errors; + + spin_unlock(&alx->stats_lock); +} + +static const struct net_device_ops alx_netdev_ops = { + .ndo_open = alx_open, + .ndo_stop = alx_stop, + .ndo_start_xmit = alx_start_xmit, + .ndo_get_stats64 = alx_get_stats64, + .ndo_set_rx_mode = alx_set_rx_mode, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = alx_set_mac_address, + .ndo_change_mtu = alx_change_mtu, + .ndo_eth_ioctl = alx_ioctl, + .ndo_tx_timeout = alx_tx_timeout, + .ndo_fix_features = alx_fix_features, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = alx_poll_controller, +#endif +}; + +static int alx_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + struct net_device *netdev; + struct alx_priv *alx; + struct alx_hw *hw; + bool phy_configured; + int err; + + err = pci_enable_device_mem(pdev); + if (err) + return err; + + /* The alx chip can DMA to 64-bit addresses, but it uses a single + * shared register for the high 32 bits, so only a single, aligned, + * 4 GB physical address range can be used for descriptors. + */ + if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) { + dev_dbg(&pdev->dev, "DMA to 64-BIT addresses\n"); + } else { + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + if (err) { + dev_err(&pdev->dev, "No usable DMA config, aborting\n"); + goto out_pci_disable; + } + } + + err = pci_request_mem_regions(pdev, alx_drv_name); + if (err) { + dev_err(&pdev->dev, + "pci_request_mem_regions failed\n"); + goto out_pci_disable; + } + + pci_enable_pcie_error_reporting(pdev); + pci_set_master(pdev); + + if (!pdev->pm_cap) { + dev_err(&pdev->dev, + "Can't find power management capability, aborting\n"); + err = -EIO; + goto out_pci_release; + } + + netdev = alloc_etherdev_mqs(sizeof(*alx), + ALX_MAX_TX_QUEUES, 1); + if (!netdev) { + err = -ENOMEM; + goto out_pci_release; + } + + SET_NETDEV_DEV(netdev, &pdev->dev); + alx = netdev_priv(netdev); + spin_lock_init(&alx->hw.mdio_lock); + spin_lock_init(&alx->irq_lock); + spin_lock_init(&alx->stats_lock); + alx->dev = netdev; + alx->hw.pdev = pdev; + alx->msg_enable = NETIF_MSG_LINK | NETIF_MSG_HW | NETIF_MSG_IFUP | + NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR | NETIF_MSG_WOL; + hw = &alx->hw; + pci_set_drvdata(pdev, alx); + + hw->hw_addr = pci_ioremap_bar(pdev, 0); + if (!hw->hw_addr) { + dev_err(&pdev->dev, "cannot map device registers\n"); + err = -EIO; + goto out_free_netdev; + } + + netdev->netdev_ops = &alx_netdev_ops; + netdev->ethtool_ops = &alx_ethtool_ops; + netdev->irq = pci_irq_vector(pdev, 0); + netdev->watchdog_timeo = ALX_WATCHDOG_TIME; + + if (ent->driver_data & ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG) + pdev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; + + err = alx_init_sw(alx); + if (err) { + dev_err(&pdev->dev, "net device private data init failed\n"); + goto out_unmap; + } + + mutex_lock(&alx->mtx); + + alx_reset_pcie(hw); + + phy_configured = alx_phy_configured(hw); + + if (!phy_configured) + alx_reset_phy(hw); + + err = alx_reset_mac(hw); + if (err) { + dev_err(&pdev->dev, "MAC Reset failed, error = %d\n", err); + goto out_unlock; + } + + /* setup link to put it in a known good starting state */ + if (!phy_configured) { + err = alx_setup_speed_duplex(hw, hw->adv_cfg, hw->flowctrl); + if (err) { + dev_err(&pdev->dev, + "failed to configure PHY speed/duplex (err=%d)\n", + err); + goto out_unlock; + } + } + + netdev->hw_features = NETIF_F_SG | + NETIF_F_HW_CSUM | + NETIF_F_RXCSUM | + NETIF_F_TSO | + NETIF_F_TSO6; + + if (alx_get_perm_macaddr(hw, hw->perm_addr)) { + dev_warn(&pdev->dev, + "Invalid permanent address programmed, using random one\n"); + eth_hw_addr_random(netdev); + memcpy(hw->perm_addr, netdev->dev_addr, netdev->addr_len); + } + + memcpy(hw->mac_addr, hw->perm_addr, ETH_ALEN); + eth_hw_addr_set(netdev, hw->mac_addr); + memcpy(netdev->perm_addr, hw->perm_addr, ETH_ALEN); + + hw->mdio.prtad = 0; + hw->mdio.mmds = 0; + hw->mdio.dev = netdev; + hw->mdio.mode_support = MDIO_SUPPORTS_C45 | + MDIO_SUPPORTS_C22 | + MDIO_EMULATE_C22; + hw->mdio.mdio_read = alx_mdio_read; + hw->mdio.mdio_write = alx_mdio_write; + + if (!alx_get_phy_info(hw)) { + dev_err(&pdev->dev, "failed to identify PHY\n"); + err = -EIO; + goto out_unlock; + } + + mutex_unlock(&alx->mtx); + + INIT_WORK(&alx->link_check_wk, alx_link_check); + INIT_WORK(&alx->reset_wk, alx_reset); + netif_carrier_off(netdev); + + err = register_netdev(netdev); + if (err) { + dev_err(&pdev->dev, "register netdevice failed\n"); + goto out_unmap; + } + + netdev_info(netdev, + "Qualcomm Atheros AR816x/AR817x Ethernet [%pM]\n", + netdev->dev_addr); + + return 0; + +out_unlock: + mutex_unlock(&alx->mtx); +out_unmap: + iounmap(hw->hw_addr); +out_free_netdev: + free_netdev(netdev); +out_pci_release: + pci_release_mem_regions(pdev); + pci_disable_pcie_error_reporting(pdev); +out_pci_disable: + pci_disable_device(pdev); + return err; +} + +static void alx_remove(struct pci_dev *pdev) +{ + struct alx_priv *alx = pci_get_drvdata(pdev); + struct alx_hw *hw = &alx->hw; + + /* restore permanent mac address */ + alx_set_macaddr(hw, hw->perm_addr); + + unregister_netdev(alx->dev); + iounmap(hw->hw_addr); + pci_release_mem_regions(pdev); + + pci_disable_pcie_error_reporting(pdev); + pci_disable_device(pdev); + + mutex_destroy(&alx->mtx); + + free_netdev(alx->dev); +} + +#ifdef CONFIG_PM_SLEEP +static int alx_suspend(struct device *dev) +{ + struct alx_priv *alx = dev_get_drvdata(dev); + + if (!netif_running(alx->dev)) + return 0; + + rtnl_lock(); + netif_device_detach(alx->dev); + + mutex_lock(&alx->mtx); + __alx_stop(alx); + mutex_unlock(&alx->mtx); + rtnl_unlock(); + + return 0; +} + +static int alx_resume(struct device *dev) +{ + struct alx_priv *alx = dev_get_drvdata(dev); + struct alx_hw *hw = &alx->hw; + int err; + + rtnl_lock(); + mutex_lock(&alx->mtx); + alx_reset_phy(hw); + + if (!netif_running(alx->dev)) { + err = 0; + goto unlock; + } + + err = __alx_open(alx, true); + if (err) + goto unlock; + + netif_device_attach(alx->dev); + +unlock: + mutex_unlock(&alx->mtx); + rtnl_unlock(); + return err; +} + +static SIMPLE_DEV_PM_OPS(alx_pm_ops, alx_suspend, alx_resume); +#define ALX_PM_OPS (&alx_pm_ops) +#else +#define ALX_PM_OPS NULL +#endif + + +static pci_ers_result_t alx_pci_error_detected(struct pci_dev *pdev, + pci_channel_state_t state) +{ + struct alx_priv *alx = pci_get_drvdata(pdev); + struct net_device *netdev = alx->dev; + pci_ers_result_t rc = PCI_ERS_RESULT_NEED_RESET; + + dev_info(&pdev->dev, "pci error detected\n"); + + mutex_lock(&alx->mtx); + + if (netif_running(netdev)) { + netif_device_detach(netdev); + alx_halt(alx); + } + + if (state == pci_channel_io_perm_failure) + rc = PCI_ERS_RESULT_DISCONNECT; + else + pci_disable_device(pdev); + + mutex_unlock(&alx->mtx); + + return rc; +} + +static pci_ers_result_t alx_pci_error_slot_reset(struct pci_dev *pdev) +{ + struct alx_priv *alx = pci_get_drvdata(pdev); + struct alx_hw *hw = &alx->hw; + pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; + + dev_info(&pdev->dev, "pci error slot reset\n"); + + mutex_lock(&alx->mtx); + + if (pci_enable_device(pdev)) { + dev_err(&pdev->dev, "Failed to re-enable PCI device after reset\n"); + goto out; + } + + pci_set_master(pdev); + + alx_reset_pcie(hw); + if (!alx_reset_mac(hw)) + rc = PCI_ERS_RESULT_RECOVERED; +out: + mutex_unlock(&alx->mtx); + + return rc; +} + +static void alx_pci_error_resume(struct pci_dev *pdev) +{ + struct alx_priv *alx = pci_get_drvdata(pdev); + struct net_device *netdev = alx->dev; + + dev_info(&pdev->dev, "pci error resume\n"); + + mutex_lock(&alx->mtx); + + if (netif_running(netdev)) { + alx_activate(alx); + netif_device_attach(netdev); + } + + mutex_unlock(&alx->mtx); +} + +static const struct pci_error_handlers alx_err_handlers = { + .error_detected = alx_pci_error_detected, + .slot_reset = alx_pci_error_slot_reset, + .resume = alx_pci_error_resume, +}; + +static const struct pci_device_id alx_pci_tbl[] = { + { PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_AR8161), + .driver_data = ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG }, + { PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_E2200), + .driver_data = ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG }, + { PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_E2400), + .driver_data = ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG }, + { PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_E2500), + .driver_data = ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG }, + { PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_AR8162), + .driver_data = ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG }, + { PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_AR8171) }, + { PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_AR8172) }, + {} +}; + +static struct pci_driver alx_driver = { + .name = alx_drv_name, + .id_table = alx_pci_tbl, + .probe = alx_probe, + .remove = alx_remove, + .err_handler = &alx_err_handlers, + .driver.pm = ALX_PM_OPS, +}; + +module_pci_driver(alx_driver); +MODULE_DEVICE_TABLE(pci, alx_pci_tbl); +MODULE_AUTHOR("Johannes Berg "); +MODULE_AUTHOR("Qualcomm Corporation"); +MODULE_DESCRIPTION( + "Qualcomm Atheros(R) AR816x/AR817x PCI-E Ethernet Network Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/atheros/alx/reg.h b/drivers/net/ethernet/atheros/alx/reg.h new file mode 100644 index 000000000..1fc2d8522 --- /dev/null +++ b/drivers/net/ethernet/atheros/alx/reg.h @@ -0,0 +1,856 @@ +/* + * Copyright (c) 2013 Johannes Berg + * + * This file is free software: you may copy, redistribute 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 file 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, see . + * + * This file incorporates work covered by the following copyright and + * permission notice: + * + * Copyright (c) 2012 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef ALX_REG_H +#define ALX_REG_H + +#define ALX_DEV_ID_AR8161 0x1091 +#define ALX_DEV_ID_E2200 0xe091 +#define ALX_DEV_ID_E2400 0xe0a1 +#define ALX_DEV_ID_E2500 0xe0b1 +#define ALX_DEV_ID_AR8162 0x1090 +#define ALX_DEV_ID_AR8171 0x10A1 +#define ALX_DEV_ID_AR8172 0x10A0 + +/* rev definition, + * bit(0): with xD support + * bit(1): with Card Reader function + * bit(7:2): real revision + */ +#define ALX_PCI_REVID_SHIFT 3 +#define ALX_REV_A0 0 +#define ALX_REV_A1 1 +#define ALX_REV_B0 2 +#define ALX_REV_C0 3 + +#define ALX_DEV_CTRL 0x0060 +#define ALX_DEV_CTRL_MAXRRS_MIN 2 + +#define ALX_MSIX_MASK 0x0090 + +#define ALX_UE_SVRT 0x010C +#define ALX_UE_SVRT_FCPROTERR BIT(13) +#define ALX_UE_SVRT_DLPROTERR BIT(4) + +/* eeprom & flash load register */ +#define ALX_EFLD 0x0204 +#define ALX_EFLD_F_EXIST BIT(10) +#define ALX_EFLD_E_EXIST BIT(9) +#define ALX_EFLD_STAT BIT(5) +#define ALX_EFLD_START BIT(0) + +/* eFuse load register */ +#define ALX_SLD 0x0218 +#define ALX_SLD_STAT BIT(12) +#define ALX_SLD_START BIT(11) +#define ALX_SLD_MAX_TO 100 + +#define ALX_PDLL_TRNS1 0x1104 +#define ALX_PDLL_TRNS1_D3PLLOFF_EN BIT(11) + +#define ALX_PMCTRL 0x12F8 +#define ALX_PMCTRL_HOTRST_WTEN BIT(31) +/* bit30: L0s/L1 controlled by MAC based on throughput(setting in 15A0) */ +#define ALX_PMCTRL_ASPM_FCEN BIT(30) +#define ALX_PMCTRL_SADLY_EN BIT(29) +#define ALX_PMCTRL_LCKDET_TIMER_MASK 0xF +#define ALX_PMCTRL_LCKDET_TIMER_SHIFT 24 +#define ALX_PMCTRL_LCKDET_TIMER_DEF 0xC +/* bit[23:20] if pm_request_l1 time > @, then enter L0s not L1 */ +#define ALX_PMCTRL_L1REQ_TO_MASK 0xF +#define ALX_PMCTRL_L1REQ_TO_SHIFT 20 +#define ALX_PMCTRL_L1REG_TO_DEF 0xF +#define ALX_PMCTRL_TXL1_AFTER_L0S BIT(19) +#define ALX_PMCTRL_L1_TIMER_MASK 0x7 +#define ALX_PMCTRL_L1_TIMER_SHIFT 16 +#define ALX_PMCTRL_L1_TIMER_16US 4 +#define ALX_PMCTRL_RCVR_WT_1US BIT(15) +/* bit13: enable pcie clk switch in L1 state */ +#define ALX_PMCTRL_L1_CLKSW_EN BIT(13) +#define ALX_PMCTRL_L0S_EN BIT(12) +#define ALX_PMCTRL_RXL1_AFTER_L0S BIT(11) +#define ALX_PMCTRL_L1_BUFSRX_EN BIT(7) +/* bit6: power down serdes RX */ +#define ALX_PMCTRL_L1_SRDSRX_PWD BIT(6) +#define ALX_PMCTRL_L1_SRDSPLL_EN BIT(5) +#define ALX_PMCTRL_L1_SRDS_EN BIT(4) +#define ALX_PMCTRL_L1_EN BIT(3) + +/*******************************************************/ +/* following registers are mapped only to memory space */ +/*******************************************************/ + +#define ALX_MASTER 0x1400 +/* bit12: 1:alwys select pclk from serdes, not sw to 25M */ +#define ALX_MASTER_PCLKSEL_SRDS BIT(12) +/* bit11: irq moduration for rx */ +#define ALX_MASTER_IRQMOD2_EN BIT(11) +/* bit10: irq moduration for tx/rx */ +#define ALX_MASTER_IRQMOD1_EN BIT(10) +#define ALX_MASTER_SYSALVTIMER_EN BIT(7) +#define ALX_MASTER_OOB_DIS BIT(6) +/* bit5: wakeup without pcie clk */ +#define ALX_MASTER_WAKEN_25M BIT(5) +/* bit0: MAC & DMA reset */ +#define ALX_MASTER_DMA_MAC_RST BIT(0) +#define ALX_DMA_MAC_RST_TO 50 + +#define ALX_IRQ_MODU_TIMER 0x1408 +#define ALX_IRQ_MODU_TIMER1_MASK 0xFFFF +#define ALX_IRQ_MODU_TIMER1_SHIFT 0 + +#define ALX_PHY_CTRL 0x140C +#define ALX_PHY_CTRL_100AB_EN BIT(17) +/* bit14: affect MAC & PHY, go to low power sts */ +#define ALX_PHY_CTRL_POWER_DOWN BIT(14) +/* bit13: 1:pll always ON, 0:can switch in lpw */ +#define ALX_PHY_CTRL_PLL_ON BIT(13) +#define ALX_PHY_CTRL_RST_ANALOG BIT(12) +#define ALX_PHY_CTRL_HIB_PULSE BIT(11) +#define ALX_PHY_CTRL_HIB_EN BIT(10) +#define ALX_PHY_CTRL_IDDQ BIT(7) +#define ALX_PHY_CTRL_GATE_25M BIT(5) +#define ALX_PHY_CTRL_LED_MODE BIT(2) +/* bit0: out of dsp RST state */ +#define ALX_PHY_CTRL_DSPRST_OUT BIT(0) +#define ALX_PHY_CTRL_DSPRST_TO 80 +#define ALX_PHY_CTRL_CLS (ALX_PHY_CTRL_LED_MODE | \ + ALX_PHY_CTRL_100AB_EN | \ + ALX_PHY_CTRL_PLL_ON) + +#define ALX_MAC_STS 0x1410 +#define ALX_MAC_STS_TXQ_BUSY BIT(3) +#define ALX_MAC_STS_RXQ_BUSY BIT(2) +#define ALX_MAC_STS_TXMAC_BUSY BIT(1) +#define ALX_MAC_STS_RXMAC_BUSY BIT(0) +#define ALX_MAC_STS_IDLE (ALX_MAC_STS_TXQ_BUSY | \ + ALX_MAC_STS_RXQ_BUSY | \ + ALX_MAC_STS_TXMAC_BUSY | \ + ALX_MAC_STS_RXMAC_BUSY) + +#define ALX_MDIO 0x1414 +#define ALX_MDIO_MODE_EXT BIT(30) +#define ALX_MDIO_BUSY BIT(27) +#define ALX_MDIO_CLK_SEL_MASK 0x7 +#define ALX_MDIO_CLK_SEL_SHIFT 24 +#define ALX_MDIO_CLK_SEL_25MD4 0 +#define ALX_MDIO_CLK_SEL_25MD128 7 +#define ALX_MDIO_START BIT(23) +#define ALX_MDIO_SPRES_PRMBL BIT(22) +/* bit21: 1:read,0:write */ +#define ALX_MDIO_OP_READ BIT(21) +#define ALX_MDIO_REG_MASK 0x1F +#define ALX_MDIO_REG_SHIFT 16 +#define ALX_MDIO_DATA_MASK 0xFFFF +#define ALX_MDIO_DATA_SHIFT 0 +#define ALX_MDIO_MAX_AC_TO 120 + +#define ALX_MDIO_EXTN 0x1448 +#define ALX_MDIO_EXTN_DEVAD_MASK 0x1F +#define ALX_MDIO_EXTN_DEVAD_SHIFT 16 +#define ALX_MDIO_EXTN_REG_MASK 0xFFFF +#define ALX_MDIO_EXTN_REG_SHIFT 0 + +#define ALX_SERDES 0x1424 +#define ALX_SERDES_PHYCLK_SLWDWN BIT(18) +#define ALX_SERDES_MACCLK_SLWDWN BIT(17) + +#define ALX_LPI_CTRL 0x1440 +#define ALX_LPI_CTRL_EN BIT(0) + +/* for B0+, bit[13..] for C0+ */ +#define ALX_HRTBT_EXT_CTRL 0x1AD0 +#define L1F_HRTBT_EXT_CTRL_PERIOD_HIGH_MASK 0x3F +#define L1F_HRTBT_EXT_CTRL_PERIOD_HIGH_SHIFT 24 +#define L1F_HRTBT_EXT_CTRL_SWOI_STARTUP_PKT_EN BIT(23) +#define L1F_HRTBT_EXT_CTRL_IOAC_2_FRAGMENTED BIT(22) +#define L1F_HRTBT_EXT_CTRL_IOAC_1_FRAGMENTED BIT(21) +#define L1F_HRTBT_EXT_CTRL_IOAC_1_KEEPALIVE_EN BIT(20) +#define L1F_HRTBT_EXT_CTRL_IOAC_1_HAS_VLAN BIT(19) +#define L1F_HRTBT_EXT_CTRL_IOAC_1_IS_8023 BIT(18) +#define L1F_HRTBT_EXT_CTRL_IOAC_1_IS_IPV6 BIT(17) +#define L1F_HRTBT_EXT_CTRL_IOAC_2_KEEPALIVE_EN BIT(16) +#define L1F_HRTBT_EXT_CTRL_IOAC_2_HAS_VLAN BIT(15) +#define L1F_HRTBT_EXT_CTRL_IOAC_2_IS_8023 BIT(14) +#define L1F_HRTBT_EXT_CTRL_IOAC_2_IS_IPV6 BIT(13) +#define ALX_HRTBT_EXT_CTRL_NS_EN BIT(12) +#define ALX_HRTBT_EXT_CTRL_FRAG_LEN_MASK 0xFF +#define ALX_HRTBT_EXT_CTRL_FRAG_LEN_SHIFT 4 +#define ALX_HRTBT_EXT_CTRL_IS_8023 BIT(3) +#define ALX_HRTBT_EXT_CTRL_IS_IPV6 BIT(2) +#define ALX_HRTBT_EXT_CTRL_WAKEUP_EN BIT(1) +#define ALX_HRTBT_EXT_CTRL_ARP_EN BIT(0) + +#define ALX_HRTBT_REM_IPV4_ADDR 0x1AD4 +#define ALX_HRTBT_HOST_IPV4_ADDR 0x1478 +#define ALX_HRTBT_REM_IPV6_ADDR3 0x1AD8 +#define ALX_HRTBT_REM_IPV6_ADDR2 0x1ADC +#define ALX_HRTBT_REM_IPV6_ADDR1 0x1AE0 +#define ALX_HRTBT_REM_IPV6_ADDR0 0x1AE4 + +/* 1B8C ~ 1B94 for C0+ */ +#define ALX_SWOI_ACER_CTRL 0x1B8C +#define ALX_SWOI_ORIG_ACK_NAK_EN BIT(20) +#define ALX_SWOI_ORIG_ACK_NAK_PKT_LEN_MASK 0XFF +#define ALX_SWOI_ORIG_ACK_NAK_PKT_LEN_SHIFT 12 +#define ALX_SWOI_ORIG_ACK_ADDR_MASK 0XFFF +#define ALX_SWOI_ORIG_ACK_ADDR_SHIFT 0 + +#define ALX_SWOI_IOAC_CTRL_2 0x1B90 +#define ALX_SWOI_IOAC_CTRL_2_SWOI_1_FRAG_LEN_MASK 0xFF +#define ALX_SWOI_IOAC_CTRL_2_SWOI_1_FRAG_LEN_SHIFT 24 +#define ALX_SWOI_IOAC_CTRL_2_SWOI_1_PKT_LEN_MASK 0xFFF +#define ALX_SWOI_IOAC_CTRL_2_SWOI_1_PKT_LEN_SHIFT 12 +#define ALX_SWOI_IOAC_CTRL_2_SWOI_1_HDR_ADDR_MASK 0xFFF +#define ALX_SWOI_IOAC_CTRL_2_SWOI_1_HDR_ADDR_SHIFT 0 + +#define ALX_SWOI_IOAC_CTRL_3 0x1B94 +#define ALX_SWOI_IOAC_CTRL_3_SWOI_2_FRAG_LEN_MASK 0xFF +#define ALX_SWOI_IOAC_CTRL_3_SWOI_2_FRAG_LEN_SHIFT 24 +#define ALX_SWOI_IOAC_CTRL_3_SWOI_2_PKT_LEN_MASK 0xFFF +#define ALX_SWOI_IOAC_CTRL_3_SWOI_2_PKT_LEN_SHIFT 12 +#define ALX_SWOI_IOAC_CTRL_3_SWOI_2_HDR_ADDR_MASK 0xFFF +#define ALX_SWOI_IOAC_CTRL_3_SWOI_2_HDR_ADDR_SHIFT 0 + +/* for B0 */ +#define ALX_IDLE_DECISN_TIMER 0x1474 +/* 1ms */ +#define ALX_IDLE_DECISN_TIMER_DEF 0x400 + +#define ALX_MAC_CTRL 0x1480 +#define ALX_MAC_CTRL_FAST_PAUSE BIT(31) +#define ALX_MAC_CTRL_WOLSPED_SWEN BIT(30) +/* bit29: 1:legacy(hi5b), 0:marvl(lo5b)*/ +#define ALX_MAC_CTRL_MHASH_ALG_HI5B BIT(29) +#define ALX_MAC_CTRL_BRD_EN BIT(26) +#define ALX_MAC_CTRL_MULTIALL_EN BIT(25) +#define ALX_MAC_CTRL_SPEED_MASK 0x3 +#define ALX_MAC_CTRL_SPEED_SHIFT 20 +#define ALX_MAC_CTRL_SPEED_10_100 1 +#define ALX_MAC_CTRL_SPEED_1000 2 +#define ALX_MAC_CTRL_PROMISC_EN BIT(15) +#define ALX_MAC_CTRL_VLANSTRIP BIT(14) +#define ALX_MAC_CTRL_PRMBLEN_MASK 0xF +#define ALX_MAC_CTRL_PRMBLEN_SHIFT 10 +#define ALX_MAC_CTRL_PCRCE BIT(7) +#define ALX_MAC_CTRL_CRCE BIT(6) +#define ALX_MAC_CTRL_FULLD BIT(5) +#define ALX_MAC_CTRL_RXFC_EN BIT(3) +#define ALX_MAC_CTRL_TXFC_EN BIT(2) +#define ALX_MAC_CTRL_RX_EN BIT(1) +#define ALX_MAC_CTRL_TX_EN BIT(0) + +#define ALX_STAD0 0x1488 +#define ALX_STAD1 0x148C + +#define ALX_HASH_TBL0 0x1490 +#define ALX_HASH_TBL1 0x1494 + +#define ALX_MTU 0x149C +#define ALX_MTU_JUMBO_TH 1514 +#define ALX_MTU_STD_ALGN 1536 + +#define ALX_SRAM5 0x1524 +#define ALX_SRAM_RXF_LEN_MASK 0xFFF +#define ALX_SRAM_RXF_LEN_SHIFT 0 +#define ALX_SRAM_RXF_LEN_8K (8*1024) + +#define ALX_SRAM9 0x1534 +#define ALX_SRAM_LOAD_PTR BIT(0) + +#define ALX_RX_BASE_ADDR_HI 0x1540 + +#define ALX_TX_BASE_ADDR_HI 0x1544 + +#define ALX_RFD_ADDR_LO 0x1550 +#define ALX_RFD_RING_SZ 0x1560 +#define ALX_RFD_BUF_SZ 0x1564 + +#define ALX_RRD_ADDR_LO 0x1568 +#define ALX_RRD_RING_SZ 0x1578 + +/* pri3: highest, pri0: lowest */ +#define ALX_TPD_PRI3_ADDR_LO 0x14E4 +#define ALX_TPD_PRI2_ADDR_LO 0x14E0 +#define ALX_TPD_PRI1_ADDR_LO 0x157C +#define ALX_TPD_PRI0_ADDR_LO 0x1580 + +/* producer index is 16bit */ +#define ALX_TPD_PRI3_PIDX 0x1618 +#define ALX_TPD_PRI2_PIDX 0x161A +#define ALX_TPD_PRI1_PIDX 0x15F0 +#define ALX_TPD_PRI0_PIDX 0x15F2 + +/* consumer index is 16bit */ +#define ALX_TPD_PRI3_CIDX 0x161C +#define ALX_TPD_PRI2_CIDX 0x161E +#define ALX_TPD_PRI1_CIDX 0x15F4 +#define ALX_TPD_PRI0_CIDX 0x15F6 + +#define ALX_TPD_RING_SZ 0x1584 + +#define ALX_TXQ0 0x1590 +#define ALX_TXQ0_TXF_BURST_PREF_MASK 0xFFFF +#define ALX_TXQ0_TXF_BURST_PREF_SHIFT 16 +#define ALX_TXQ_TXF_BURST_PREF_DEF 0x200 +#define ALX_TXQ0_LSO_8023_EN BIT(7) +#define ALX_TXQ0_MODE_ENHANCE BIT(6) +#define ALX_TXQ0_EN BIT(5) +#define ALX_TXQ0_SUPT_IPOPT BIT(4) +#define ALX_TXQ0_TPD_BURSTPREF_MASK 0xF +#define ALX_TXQ0_TPD_BURSTPREF_SHIFT 0 +#define ALX_TXQ_TPD_BURSTPREF_DEF 5 + +#define ALX_TXQ1 0x1594 +/* bit11: drop large packet, len > (rfd buf) */ +#define ALX_TXQ1_ERRLGPKT_DROP_EN BIT(11) +#define ALX_TXQ1_JUMBO_TSO_TH (7*1024) + +#define ALX_RXQ0 0x15A0 +#define ALX_RXQ0_EN BIT(31) +#define ALX_RXQ0_RSS_HASH_EN BIT(29) +#define ALX_RXQ0_RSS_MODE_MASK 0x3 +#define ALX_RXQ0_RSS_MODE_SHIFT 26 +#define ALX_RXQ0_RSS_MODE_DIS 0 +#define ALX_RXQ0_RSS_MODE_MQMI 3 +#define ALX_RXQ0_NUM_RFD_PREF_MASK 0x3F +#define ALX_RXQ0_NUM_RFD_PREF_SHIFT 20 +#define ALX_RXQ0_NUM_RFD_PREF_DEF 8 +#define ALX_RXQ0_IDT_TBL_SIZE_MASK 0x1FF +#define ALX_RXQ0_IDT_TBL_SIZE_SHIFT 8 +#define ALX_RXQ0_IDT_TBL_SIZE_DEF 0x100 +#define ALX_RXQ0_IDT_TBL_SIZE_NORMAL 128 +#define ALX_RXQ0_IPV6_PARSE_EN BIT(7) +#define ALX_RXQ0_RSS_HSTYP_MASK 0xF +#define ALX_RXQ0_RSS_HSTYP_SHIFT 2 +#define ALX_RXQ0_RSS_HSTYP_IPV6_TCP_EN BIT(5) +#define ALX_RXQ0_RSS_HSTYP_IPV6_EN BIT(4) +#define ALX_RXQ0_RSS_HSTYP_IPV4_TCP_EN BIT(3) +#define ALX_RXQ0_RSS_HSTYP_IPV4_EN BIT(2) +#define ALX_RXQ0_RSS_HSTYP_ALL (ALX_RXQ0_RSS_HSTYP_IPV6_TCP_EN | \ + ALX_RXQ0_RSS_HSTYP_IPV4_TCP_EN | \ + ALX_RXQ0_RSS_HSTYP_IPV6_EN | \ + ALX_RXQ0_RSS_HSTYP_IPV4_EN) +#define ALX_RXQ0_ASPM_THRESH_MASK 0x3 +#define ALX_RXQ0_ASPM_THRESH_SHIFT 0 +#define ALX_RXQ0_ASPM_THRESH_100M 3 + +#define ALX_RXQ2 0x15A8 +#define ALX_RXQ2_RXF_XOFF_THRESH_MASK 0xFFF +#define ALX_RXQ2_RXF_XOFF_THRESH_SHIFT 16 +#define ALX_RXQ2_RXF_XON_THRESH_MASK 0xFFF +#define ALX_RXQ2_RXF_XON_THRESH_SHIFT 0 +/* Size = tx-packet(1522) + IPG(12) + SOF(8) + 64(Pause) + IPG(12) + SOF(8) + + * rx-packet(1522) + delay-of-link(64) + * = 3212. + */ +#define ALX_RXQ2_RXF_FLOW_CTRL_RSVD 3212 + +#define ALX_DMA 0x15C0 +#define ALX_DMA_RCHNL_SEL_MASK 0x3 +#define ALX_DMA_RCHNL_SEL_SHIFT 26 +#define ALX_DMA_WDLY_CNT_MASK 0xF +#define ALX_DMA_WDLY_CNT_SHIFT 16 +#define ALX_DMA_WDLY_CNT_DEF 4 +#define ALX_DMA_RDLY_CNT_MASK 0x1F +#define ALX_DMA_RDLY_CNT_SHIFT 11 +#define ALX_DMA_RDLY_CNT_DEF 15 +/* bit10: 0:tpd with pri, 1: data */ +#define ALX_DMA_RREQ_PRI_DATA BIT(10) +#define ALX_DMA_RREQ_BLEN_MASK 0x7 +#define ALX_DMA_RREQ_BLEN_SHIFT 4 +#define ALX_DMA_RORDER_MODE_MASK 0x7 +#define ALX_DMA_RORDER_MODE_SHIFT 0 +#define ALX_DMA_RORDER_MODE_OUT 4 + +#define ALX_WOL0 0x14A0 +#define ALX_WOL0_PME_LINK BIT(5) +#define ALX_WOL0_LINK_EN BIT(4) +#define ALX_WOL0_PME_MAGIC_EN BIT(3) +#define ALX_WOL0_MAGIC_EN BIT(2) + +#define ALX_RFD_PIDX 0x15E0 + +#define ALX_RFD_CIDX 0x15F8 + +/* MIB */ +#define ALX_MIB_BASE 0x1700 + +#define ALX_MIB_RX_OK (ALX_MIB_BASE + 0) +#define ALX_MIB_RX_BCAST (ALX_MIB_BASE + 4) +#define ALX_MIB_RX_MCAST (ALX_MIB_BASE + 8) +#define ALX_MIB_RX_PAUSE (ALX_MIB_BASE + 12) +#define ALX_MIB_RX_CTRL (ALX_MIB_BASE + 16) +#define ALX_MIB_RX_FCS_ERR (ALX_MIB_BASE + 20) +#define ALX_MIB_RX_LEN_ERR (ALX_MIB_BASE + 24) +#define ALX_MIB_RX_BYTE_CNT (ALX_MIB_BASE + 28) +#define ALX_MIB_RX_RUNT (ALX_MIB_BASE + 32) +#define ALX_MIB_RX_FRAG (ALX_MIB_BASE + 36) +#define ALX_MIB_RX_SZ_64B (ALX_MIB_BASE + 40) +#define ALX_MIB_RX_SZ_127B (ALX_MIB_BASE + 44) +#define ALX_MIB_RX_SZ_255B (ALX_MIB_BASE + 48) +#define ALX_MIB_RX_SZ_511B (ALX_MIB_BASE + 52) +#define ALX_MIB_RX_SZ_1023B (ALX_MIB_BASE + 56) +#define ALX_MIB_RX_SZ_1518B (ALX_MIB_BASE + 60) +#define ALX_MIB_RX_SZ_MAX (ALX_MIB_BASE + 64) +#define ALX_MIB_RX_OV_SZ (ALX_MIB_BASE + 68) +#define ALX_MIB_RX_OV_RXF (ALX_MIB_BASE + 72) +#define ALX_MIB_RX_OV_RRD (ALX_MIB_BASE + 76) +#define ALX_MIB_RX_ALIGN_ERR (ALX_MIB_BASE + 80) +#define ALX_MIB_RX_BCCNT (ALX_MIB_BASE + 84) +#define ALX_MIB_RX_MCCNT (ALX_MIB_BASE + 88) +#define ALX_MIB_RX_ERRADDR (ALX_MIB_BASE + 92) + +#define ALX_MIB_TX_OK (ALX_MIB_BASE + 96) +#define ALX_MIB_TX_BCAST (ALX_MIB_BASE + 100) +#define ALX_MIB_TX_MCAST (ALX_MIB_BASE + 104) +#define ALX_MIB_TX_PAUSE (ALX_MIB_BASE + 108) +#define ALX_MIB_TX_EXC_DEFER (ALX_MIB_BASE + 112) +#define ALX_MIB_TX_CTRL (ALX_MIB_BASE + 116) +#define ALX_MIB_TX_DEFER (ALX_MIB_BASE + 120) +#define ALX_MIB_TX_BYTE_CNT (ALX_MIB_BASE + 124) +#define ALX_MIB_TX_SZ_64B (ALX_MIB_BASE + 128) +#define ALX_MIB_TX_SZ_127B (ALX_MIB_BASE + 132) +#define ALX_MIB_TX_SZ_255B (ALX_MIB_BASE + 136) +#define ALX_MIB_TX_SZ_511B (ALX_MIB_BASE + 140) +#define ALX_MIB_TX_SZ_1023B (ALX_MIB_BASE + 144) +#define ALX_MIB_TX_SZ_1518B (ALX_MIB_BASE + 148) +#define ALX_MIB_TX_SZ_MAX (ALX_MIB_BASE + 152) +#define ALX_MIB_TX_SINGLE_COL (ALX_MIB_BASE + 156) +#define ALX_MIB_TX_MULTI_COL (ALX_MIB_BASE + 160) +#define ALX_MIB_TX_LATE_COL (ALX_MIB_BASE + 164) +#define ALX_MIB_TX_ABORT_COL (ALX_MIB_BASE + 168) +#define ALX_MIB_TX_UNDERRUN (ALX_MIB_BASE + 172) +#define ALX_MIB_TX_TRD_EOP (ALX_MIB_BASE + 176) +#define ALX_MIB_TX_LEN_ERR (ALX_MIB_BASE + 180) +#define ALX_MIB_TX_TRUNC (ALX_MIB_BASE + 184) +#define ALX_MIB_TX_BCCNT (ALX_MIB_BASE + 188) +#define ALX_MIB_TX_MCCNT (ALX_MIB_BASE + 192) +#define ALX_MIB_UPDATE (ALX_MIB_BASE + 196) + + +#define ALX_ISR 0x1600 +#define ALX_ISR_DIS BIT(31) +#define ALX_ISR_RX_Q7 BIT(30) +#define ALX_ISR_RX_Q6 BIT(29) +#define ALX_ISR_RX_Q5 BIT(28) +#define ALX_ISR_RX_Q4 BIT(27) +#define ALX_ISR_PCIE_LNKDOWN BIT(26) +#define ALX_ISR_RX_Q3 BIT(19) +#define ALX_ISR_RX_Q2 BIT(18) +#define ALX_ISR_RX_Q1 BIT(17) +#define ALX_ISR_RX_Q0 BIT(16) +#define ALX_ISR_TX_Q0 BIT(15) +#define ALX_ISR_PHY BIT(12) +#define ALX_ISR_DMAW BIT(10) +#define ALX_ISR_DMAR BIT(9) +#define ALX_ISR_TXF_UR BIT(8) +#define ALX_ISR_TX_Q3 BIT(7) +#define ALX_ISR_TX_Q2 BIT(6) +#define ALX_ISR_TX_Q1 BIT(5) +#define ALX_ISR_RFD_UR BIT(4) +#define ALX_ISR_RXF_OV BIT(3) +#define ALX_ISR_MANU BIT(2) +#define ALX_ISR_TIMER BIT(1) +#define ALX_ISR_SMB BIT(0) + +#define ALX_IMR 0x1604 + +/* re-send assert msg if SW no response */ +#define ALX_INT_RETRIG 0x1608 +/* 40ms */ +#define ALX_INT_RETRIG_TO 20000 + +#define ALX_SMB_TIMER 0x15C4 + +#define ALX_TINT_TPD_THRSHLD 0x15C8 + +#define ALX_TINT_TIMER 0x15CC + +#define ALX_CLK_GATE 0x1814 +#define ALX_CLK_GATE_RXMAC BIT(5) +#define ALX_CLK_GATE_TXMAC BIT(4) +#define ALX_CLK_GATE_RXQ BIT(3) +#define ALX_CLK_GATE_TXQ BIT(2) +#define ALX_CLK_GATE_DMAR BIT(1) +#define ALX_CLK_GATE_DMAW BIT(0) +#define ALX_CLK_GATE_ALL (ALX_CLK_GATE_RXMAC | \ + ALX_CLK_GATE_TXMAC | \ + ALX_CLK_GATE_RXQ | \ + ALX_CLK_GATE_TXQ | \ + ALX_CLK_GATE_DMAR | \ + ALX_CLK_GATE_DMAW) + +/* interop between drivers */ +#define ALX_DRV 0x1804 +#define ALX_DRV_PHY_AUTO BIT(28) +#define ALX_DRV_PHY_1000 BIT(27) +#define ALX_DRV_PHY_100 BIT(26) +#define ALX_DRV_PHY_10 BIT(25) +#define ALX_DRV_PHY_DUPLEX BIT(24) +/* bit23: adv Pause */ +#define ALX_DRV_PHY_PAUSE BIT(23) +/* bit22: adv Asym Pause */ +#define ALX_DRV_PHY_MASK 0xFF +#define ALX_DRV_PHY_SHIFT 21 +#define ALX_DRV_PHY_UNKNOWN 0 + +/* flag of phy inited */ +#define ALX_PHY_INITED 0x003F + +/* reg 1830 ~ 186C for C0+, 16 bit map patterns and wake packet detection */ +#define ALX_WOL_CTRL2 0x1830 +#define ALX_WOL_CTRL2_DATA_STORE BIT(3) +#define ALX_WOL_CTRL2_PTRN_EVT BIT(2) +#define ALX_WOL_CTRL2_PME_PTRN_EN BIT(1) +#define ALX_WOL_CTRL2_PTRN_EN BIT(0) + +#define ALX_WOL_CTRL3 0x1834 +#define ALX_WOL_CTRL3_PTRN_ADDR_MASK 0xFFFFF +#define ALX_WOL_CTRL3_PTRN_ADDR_SHIFT 0 + +#define ALX_WOL_CTRL4 0x1838 +#define ALX_WOL_CTRL4_PT15_MATCH BIT(31) +#define ALX_WOL_CTRL4_PT14_MATCH BIT(30) +#define ALX_WOL_CTRL4_PT13_MATCH BIT(29) +#define ALX_WOL_CTRL4_PT12_MATCH BIT(28) +#define ALX_WOL_CTRL4_PT11_MATCH BIT(27) +#define ALX_WOL_CTRL4_PT10_MATCH BIT(26) +#define ALX_WOL_CTRL4_PT9_MATCH BIT(25) +#define ALX_WOL_CTRL4_PT8_MATCH BIT(24) +#define ALX_WOL_CTRL4_PT7_MATCH BIT(23) +#define ALX_WOL_CTRL4_PT6_MATCH BIT(22) +#define ALX_WOL_CTRL4_PT5_MATCH BIT(21) +#define ALX_WOL_CTRL4_PT4_MATCH BIT(20) +#define ALX_WOL_CTRL4_PT3_MATCH BIT(19) +#define ALX_WOL_CTRL4_PT2_MATCH BIT(18) +#define ALX_WOL_CTRL4_PT1_MATCH BIT(17) +#define ALX_WOL_CTRL4_PT0_MATCH BIT(16) +#define ALX_WOL_CTRL4_PT15_EN BIT(15) +#define ALX_WOL_CTRL4_PT14_EN BIT(14) +#define ALX_WOL_CTRL4_PT13_EN BIT(13) +#define ALX_WOL_CTRL4_PT12_EN BIT(12) +#define ALX_WOL_CTRL4_PT11_EN BIT(11) +#define ALX_WOL_CTRL4_PT10_EN BIT(10) +#define ALX_WOL_CTRL4_PT9_EN BIT(9) +#define ALX_WOL_CTRL4_PT8_EN BIT(8) +#define ALX_WOL_CTRL4_PT7_EN BIT(7) +#define ALX_WOL_CTRL4_PT6_EN BIT(6) +#define ALX_WOL_CTRL4_PT5_EN BIT(5) +#define ALX_WOL_CTRL4_PT4_EN BIT(4) +#define ALX_WOL_CTRL4_PT3_EN BIT(3) +#define ALX_WOL_CTRL4_PT2_EN BIT(2) +#define ALX_WOL_CTRL4_PT1_EN BIT(1) +#define ALX_WOL_CTRL4_PT0_EN BIT(0) + +#define ALX_WOL_CTRL5 0x183C +#define ALX_WOL_CTRL5_PT3_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT3_LEN_SHIFT 24 +#define ALX_WOL_CTRL5_PT2_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT2_LEN_SHIFT 16 +#define ALX_WOL_CTRL5_PT1_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT1_LEN_SHIFT 8 +#define ALX_WOL_CTRL5_PT0_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT0_LEN_SHIFT 0 + +#define ALX_WOL_CTRL6 0x1840 +#define ALX_WOL_CTRL5_PT7_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT7_LEN_SHIFT 24 +#define ALX_WOL_CTRL5_PT6_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT6_LEN_SHIFT 16 +#define ALX_WOL_CTRL5_PT5_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT5_LEN_SHIFT 8 +#define ALX_WOL_CTRL5_PT4_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT4_LEN_SHIFT 0 + +#define ALX_WOL_CTRL7 0x1844 +#define ALX_WOL_CTRL5_PT11_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT11_LEN_SHIFT 24 +#define ALX_WOL_CTRL5_PT10_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT10_LEN_SHIFT 16 +#define ALX_WOL_CTRL5_PT9_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT9_LEN_SHIFT 8 +#define ALX_WOL_CTRL5_PT8_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT8_LEN_SHIFT 0 + +#define ALX_WOL_CTRL8 0x1848 +#define ALX_WOL_CTRL5_PT15_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT15_LEN_SHIFT 24 +#define ALX_WOL_CTRL5_PT14_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT14_LEN_SHIFT 16 +#define ALX_WOL_CTRL5_PT13_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT13_LEN_SHIFT 8 +#define ALX_WOL_CTRL5_PT12_LEN_MASK 0xFF +#define ALX_WOL_CTRL5_PT12_LEN_SHIFT 0 + +#define ALX_ACER_FIXED_PTN0 0x1850 +#define ALX_ACER_FIXED_PTN0_MASK 0xFFFFFFFF +#define ALX_ACER_FIXED_PTN0_SHIFT 0 + +#define ALX_ACER_FIXED_PTN1 0x1854 +#define ALX_ACER_FIXED_PTN1_MASK 0xFFFF +#define ALX_ACER_FIXED_PTN1_SHIFT 0 + +#define ALX_ACER_RANDOM_NUM0 0x1858 +#define ALX_ACER_RANDOM_NUM0_MASK 0xFFFFFFFF +#define ALX_ACER_RANDOM_NUM0_SHIFT 0 + +#define ALX_ACER_RANDOM_NUM1 0x185C +#define ALX_ACER_RANDOM_NUM1_MASK 0xFFFFFFFF +#define ALX_ACER_RANDOM_NUM1_SHIFT 0 + +#define ALX_ACER_RANDOM_NUM2 0x1860 +#define ALX_ACER_RANDOM_NUM2_MASK 0xFFFFFFFF +#define ALX_ACER_RANDOM_NUM2_SHIFT 0 + +#define ALX_ACER_RANDOM_NUM3 0x1864 +#define ALX_ACER_RANDOM_NUM3_MASK 0xFFFFFFFF +#define ALX_ACER_RANDOM_NUM3_SHIFT 0 + +#define ALX_ACER_MAGIC 0x1868 +#define ALX_ACER_MAGIC_EN BIT(31) +#define ALX_ACER_MAGIC_PME_EN BIT(30) +#define ALX_ACER_MAGIC_MATCH BIT(29) +#define ALX_ACER_MAGIC_FF_CHECK BIT(10) +#define ALX_ACER_MAGIC_RAN_LEN_MASK 0x1F +#define ALX_ACER_MAGIC_RAN_LEN_SHIFT 5 +#define ALX_ACER_MAGIC_FIX_LEN_MASK 0x1F +#define ALX_ACER_MAGIC_FIX_LEN_SHIFT 0 + +#define ALX_ACER_TIMER 0x186C +#define ALX_ACER_TIMER_EN BIT(31) +#define ALX_ACER_TIMER_PME_EN BIT(30) +#define ALX_ACER_TIMER_MATCH BIT(29) +#define ALX_ACER_TIMER_THRES_MASK 0x1FFFF +#define ALX_ACER_TIMER_THRES_SHIFT 0 +#define ALX_ACER_TIMER_THRES_DEF 1 + +/* RSS definitions */ +#define ALX_RSS_KEY0 0x14B0 +#define ALX_RSS_KEY1 0x14B4 +#define ALX_RSS_KEY2 0x14B8 +#define ALX_RSS_KEY3 0x14BC +#define ALX_RSS_KEY4 0x14C0 +#define ALX_RSS_KEY5 0x14C4 +#define ALX_RSS_KEY6 0x14C8 +#define ALX_RSS_KEY7 0x14CC +#define ALX_RSS_KEY8 0x14D0 +#define ALX_RSS_KEY9 0x14D4 + +#define ALX_RSS_IDT_TBL0 0x1B00 + +#define ALX_MSI_MAP_TBL1 0x15D0 +#define ALX_MSI_MAP_TBL1_TXQ1_SHIFT 20 +#define ALX_MSI_MAP_TBL1_TXQ0_SHIFT 16 +#define ALX_MSI_MAP_TBL1_RXQ3_SHIFT 12 +#define ALX_MSI_MAP_TBL1_RXQ2_SHIFT 8 +#define ALX_MSI_MAP_TBL1_RXQ1_SHIFT 4 +#define ALX_MSI_MAP_TBL1_RXQ0_SHIFT 0 + +#define ALX_MSI_MAP_TBL2 0x15D8 +#define ALX_MSI_MAP_TBL2_TXQ3_SHIFT 20 +#define ALX_MSI_MAP_TBL2_TXQ2_SHIFT 16 +#define ALX_MSI_MAP_TBL2_RXQ7_SHIFT 12 +#define ALX_MSI_MAP_TBL2_RXQ6_SHIFT 8 +#define ALX_MSI_MAP_TBL2_RXQ5_SHIFT 4 +#define ALX_MSI_MAP_TBL2_RXQ4_SHIFT 0 + +#define ALX_MSI_ID_MAP 0x15D4 + +#define ALX_MSI_RETRANS_TIMER 0x1920 +/* bit16: 1:line,0:standard */ +#define ALX_MSI_MASK_SEL_LINE BIT(16) +#define ALX_MSI_RETRANS_TM_MASK 0xFFFF +#define ALX_MSI_RETRANS_TM_SHIFT 0 + +/* CR DMA ctrl */ + +/* TX QoS */ +#define ALX_WRR 0x1938 +#define ALX_WRR_PRI_MASK 0x3 +#define ALX_WRR_PRI_SHIFT 29 +#define ALX_WRR_PRI_RESTRICT_NONE 3 +#define ALX_WRR_PRI3_MASK 0x1F +#define ALX_WRR_PRI3_SHIFT 24 +#define ALX_WRR_PRI2_MASK 0x1F +#define ALX_WRR_PRI2_SHIFT 16 +#define ALX_WRR_PRI1_MASK 0x1F +#define ALX_WRR_PRI1_SHIFT 8 +#define ALX_WRR_PRI0_MASK 0x1F +#define ALX_WRR_PRI0_SHIFT 0 + +#define ALX_HQTPD 0x193C +#define ALX_HQTPD_BURST_EN BIT(31) +#define ALX_HQTPD_Q3_NUMPREF_MASK 0xF +#define ALX_HQTPD_Q3_NUMPREF_SHIFT 8 +#define ALX_HQTPD_Q2_NUMPREF_MASK 0xF +#define ALX_HQTPD_Q2_NUMPREF_SHIFT 4 +#define ALX_HQTPD_Q1_NUMPREF_MASK 0xF +#define ALX_HQTPD_Q1_NUMPREF_SHIFT 0 + +#define ALX_MISC 0x19C0 +#define ALX_MISC_PSW_OCP_MASK 0x7 +#define ALX_MISC_PSW_OCP_SHIFT 21 +#define ALX_MISC_PSW_OCP_DEF 0x7 +#define ALX_MISC_ISO_EN BIT(12) +#define ALX_MISC_INTNLOSC_OPEN BIT(3) + +#define ALX_MSIC2 0x19C8 +#define ALX_MSIC2_CALB_START BIT(0) + +#define ALX_MISC3 0x19CC +/* bit1: 1:Software control 25M */ +#define ALX_MISC3_25M_BY_SW BIT(1) +/* bit0: 25M switch to intnl OSC */ +#define ALX_MISC3_25M_NOTO_INTNL BIT(0) + +/* MSIX tbl in memory space */ +#define ALX_MSIX_ENTRY_BASE 0x2000 + +/********************* PHY regs definition ***************************/ + +/* PHY Specific Status Register */ +#define ALX_MII_GIGA_PSSR 0x11 +#define ALX_GIGA_PSSR_SPD_DPLX_RESOLVED 0x0800 +#define ALX_GIGA_PSSR_DPLX 0x2000 +#define ALX_GIGA_PSSR_SPEED 0xC000 +#define ALX_GIGA_PSSR_10MBS 0x0000 +#define ALX_GIGA_PSSR_100MBS 0x4000 +#define ALX_GIGA_PSSR_1000MBS 0x8000 + +/* PHY Interrupt Enable Register */ +#define ALX_MII_IER 0x12 +#define ALX_IER_LINK_UP 0x0400 +#define ALX_IER_LINK_DOWN 0x0800 + +/* PHY Interrupt Status Register */ +#define ALX_MII_ISR 0x13 + +#define ALX_MII_DBG_ADDR 0x1D +#define ALX_MII_DBG_DATA 0x1E + +/***************************** debug port *************************************/ + +#define ALX_MIIDBG_ANACTRL 0x00 +#define ALX_ANACTRL_DEF 0x02EF + +#define ALX_MIIDBG_SYSMODCTRL 0x04 +/* en half bias */ +#define ALX_SYSMODCTRL_IECHOADJ_DEF 0xBB8B + +#define ALX_MIIDBG_SRDSYSMOD 0x05 +#define ALX_SRDSYSMOD_DEEMP_EN 0x0040 +#define ALX_SRDSYSMOD_DEF 0x2C46 + +#define ALX_MIIDBG_HIBNEG 0x0B +#define ALX_HIBNEG_PSHIB_EN 0x8000 +#define ALX_HIBNEG_HIB_PSE 0x1000 +#define ALX_HIBNEG_DEF 0xBC40 +#define ALX_HIBNEG_NOHIB (ALX_HIBNEG_DEF & \ + ~(ALX_HIBNEG_PSHIB_EN | ALX_HIBNEG_HIB_PSE)) + +#define ALX_MIIDBG_TST10BTCFG 0x12 +#define ALX_TST10BTCFG_DEF 0x4C04 + +#define ALX_MIIDBG_AZ_ANADECT 0x15 +#define ALX_AZ_ANADECT_DEF 0x3220 +#define ALX_AZ_ANADECT_LONG 0x3210 + +#define ALX_MIIDBG_MSE16DB 0x18 +#define ALX_MSE16DB_UP 0x05EA +#define ALX_MSE16DB_DOWN 0x02EA + +#define ALX_MIIDBG_MSE20DB 0x1C +#define ALX_MSE20DB_TH_MASK 0x7F +#define ALX_MSE20DB_TH_SHIFT 2 +#define ALX_MSE20DB_TH_DEF 0x2E +#define ALX_MSE20DB_TH_HI 0x54 + +#define ALX_MIIDBG_AGC 0x23 +#define ALX_AGC_2_VGA_MASK 0x3FU +#define ALX_AGC_2_VGA_SHIFT 8 +#define ALX_AGC_LONG1G_LIMT 40 +#define ALX_AGC_LONG100M_LIMT 44 + +#define ALX_MIIDBG_LEGCYPS 0x29 +#define ALX_LEGCYPS_EN 0x8000 +#define ALX_LEGCYPS_DEF 0x129D + +#define ALX_MIIDBG_TST100BTCFG 0x36 +#define ALX_TST100BTCFG_DEF 0xE12C + +#define ALX_MIIDBG_GREENCFG 0x3B +#define ALX_GREENCFG_DEF 0x7078 + +#define ALX_MIIDBG_GREENCFG2 0x3D +#define ALX_GREENCFG2_BP_GREEN 0x8000 +#define ALX_GREENCFG2_GATE_DFSE_EN 0x0080 + +/******* dev 3 *********/ +#define ALX_MIIEXT_PCS 3 + +#define ALX_MIIEXT_CLDCTRL3 0x8003 +#define ALX_CLDCTRL3_BP_CABLE1TH_DET_GT 0x8000 + +#define ALX_MIIEXT_CLDCTRL5 0x8005 +#define ALX_CLDCTRL5_BP_VD_HLFBIAS 0x4000 + +#define ALX_MIIEXT_CLDCTRL6 0x8006 +#define ALX_CLDCTRL6_CAB_LEN_MASK 0xFF +#define ALX_CLDCTRL6_CAB_LEN_SHIFT 0 +#define ALX_CLDCTRL6_CAB_LEN_SHORT1G 116 +#define ALX_CLDCTRL6_CAB_LEN_SHORT100M 152 + +#define ALX_MIIEXT_VDRVBIAS 0x8062 +#define ALX_VDRVBIAS_DEF 0x3 + +/********* dev 7 **********/ +#define ALX_MIIEXT_ANEG 7 + +#define ALX_MIIEXT_LOCAL_EEEADV 0x3C +#define ALX_LOCAL_EEEADV_1000BT 0x0004 +#define ALX_LOCAL_EEEADV_100BT 0x0002 + +#define ALX_MIIEXT_AFE 0x801A +#define ALX_AFE_10BT_100M_TH 0x0040 + +#define ALX_MIIEXT_S3DIG10 0x8023 +/* bit0: 1:bypass 10BT rx fifo, 0:original 10BT rx */ +#define ALX_MIIEXT_S3DIG10_SL 0x0001 +#define ALX_MIIEXT_S3DIG10_DEF 0 + +#define ALX_MIIEXT_NLP78 0x8027 +#define ALX_MIIEXT_NLP78_120M_DEF 0x8A05 + +#endif -- cgit v1.2.3