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path: root/drivers/net/ethernet/atheros/alx/hw.c
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-rw-r--r--drivers/net/ethernet/atheros/alx/hw.c1124
1 files changed, 1124 insertions, 0 deletions
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 <johannes@sipsolutions.net>
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ *
+ * 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 <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/mdio.h>
+#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);
+}