atl1e: Atheros L1E Gigabit Ethernet driver

Full patch for the Atheros L1E Gigabit Ethernet driver.
Supportring AR8121, AR8113 and AR8114

Signed-off-by: Jie Yang <jie.yang @atheros.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 405 insertions, 0 deletions

diff --git a/drivers/net/atl1e/atl1e_ethtool.c b/drivers/net/atl1e/atl1e_ethtool.c
new file mode 100644
index 000000000000..cdc3b85b10b9
--- /dev/null
+++ b/drivers/net/atl1e/atl1e_ethtool.c
@@ -0,0 +1,405 @@
+/*
+ * Copyright(c) 2007 Atheros Corporation. All rights reserved.
+ *
+ * Derived from Intel e1000 driver
+ * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ */
+
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+
+#include "atl1e.h"
+
+static int atl1e_get_settings(struct net_device *netdev,
+			      struct ethtool_cmd *ecmd)
+{
+	struct atl1e_adapter *adapter = netdev_priv(netdev);
+	struct atl1e_hw *hw = &adapter->hw;
+
+	ecmd->supported = (SUPPORTED_10baseT_Half  |
+			   SUPPORTED_10baseT_Full  |
+			   SUPPORTED_100baseT_Half |
+			   SUPPORTED_100baseT_Full |
+			   SUPPORTED_Autoneg       |
+			   SUPPORTED_TP);
+	if (hw->nic_type == athr_l1e)
+		ecmd->supported |= SUPPORTED_1000baseT_Full;
+
+	ecmd->advertising = ADVERTISED_TP;
+
+	ecmd->advertising |= ADVERTISED_Autoneg;
+	ecmd->advertising |= hw->autoneg_advertised;
+
+	ecmd->port = PORT_TP;
+	ecmd->phy_address = 0;
+	ecmd->transceiver = XCVR_INTERNAL;
+
+	if (adapter->link_speed != SPEED_0) {
+		ecmd->speed = adapter->link_speed;
+		if (adapter->link_duplex == FULL_DUPLEX)
+			ecmd->duplex = DUPLEX_FULL;
+		else
+			ecmd->duplex = DUPLEX_HALF;
+	} else {
+		ecmd->speed = -1;
+		ecmd->duplex = -1;
+	}
+
+	ecmd->autoneg = AUTONEG_ENABLE;
+	return 0;
+}
+
+static int atl1e_set_settings(struct net_device *netdev,
+			      struct ethtool_cmd *ecmd)
+{
+	struct atl1e_adapter *adapter = netdev_priv(netdev);
+	struct atl1e_hw *hw = &adapter->hw;
+
+	while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
+		msleep(1);
+
+	if (ecmd->autoneg == AUTONEG_ENABLE) {
+		u16 adv4, adv9;
+
+		if ((ecmd->advertising&ADVERTISE_1000_FULL)) {
+			if (hw->nic_type == athr_l1e) {
+				hw->autoneg_advertised =
+					ecmd->advertising & AT_ADV_MASK;
+			} else {
+				clear_bit(__AT_RESETTING, &adapter->flags);
+				return -EINVAL;
+			}
+		} else if (ecmd->advertising&ADVERTISE_1000_HALF) {
+			clear_bit(__AT_RESETTING, &adapter->flags);
+			return -EINVAL;
+		} else {
+			hw->autoneg_advertised =
+				ecmd->advertising & AT_ADV_MASK;
+		}
+		ecmd->advertising = hw->autoneg_advertised |
+				    ADVERTISED_TP | ADVERTISED_Autoneg;
+
+		adv4 = hw->mii_autoneg_adv_reg & ~MII_AR_SPEED_MASK;
+		adv9 = hw->mii_1000t_ctrl_reg & ~MII_AT001_CR_1000T_SPEED_MASK;
+		if (hw->autoneg_advertised & ADVERTISE_10_HALF)
+			adv4 |= MII_AR_10T_HD_CAPS;
+		if (hw->autoneg_advertised & ADVERTISE_10_FULL)
+			adv4 |= MII_AR_10T_FD_CAPS;
+		if (hw->autoneg_advertised & ADVERTISE_100_HALF)
+			adv4 |= MII_AR_100TX_HD_CAPS;
+		if (hw->autoneg_advertised & ADVERTISE_100_FULL)
+			adv4 |= MII_AR_100TX_FD_CAPS;
+		if (hw->autoneg_advertised & ADVERTISE_1000_FULL)
+			adv9 |= MII_AT001_CR_1000T_FD_CAPS;
+
+		if (adv4 != hw->mii_autoneg_adv_reg ||
+				adv9 != hw->mii_1000t_ctrl_reg) {
+			hw->mii_autoneg_adv_reg = adv4;
+			hw->mii_1000t_ctrl_reg = adv9;
+			hw->re_autoneg = true;
+		}
+
+	} else {
+		clear_bit(__AT_RESETTING, &adapter->flags);
+		return -EINVAL;
+	}
+
+	/* reset the link */
+
+	if (netif_running(adapter->netdev)) {
+		atl1e_down(adapter);
+		atl1e_up(adapter);
+	} else
+		atl1e_reset_hw(&adapter->hw);
+
+	clear_bit(__AT_RESETTING, &adapter->flags);
+	return 0;
+}
+
+static u32 atl1e_get_tx_csum(struct net_device *netdev)
+{
+	return (netdev->features & NETIF_F_HW_CSUM) != 0;
+}
+
+static u32 atl1e_get_msglevel(struct net_device *netdev)
+{
+#ifdef DBG
+	return 1;
+#else
+	return 0;
+#endif
+}
+
+static void atl1e_set_msglevel(struct net_device *netdev, u32 data)
+{
+}
+
+static int atl1e_get_regs_len(struct net_device *netdev)
+{
+	return AT_REGS_LEN * sizeof(u32);
+}
+
+static void atl1e_get_regs(struct net_device *netdev,
+			   struct ethtool_regs *regs, void *p)
+{
+	struct atl1e_adapter *adapter = netdev_priv(netdev);
+	struct atl1e_hw *hw = &adapter->hw;
+	u32 *regs_buff = p;
+	u16 phy_data;
+
+	memset(p, 0, AT_REGS_LEN * sizeof(u32));
+
+	regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
+
+	regs_buff[0]  = AT_READ_REG(hw, REG_VPD_CAP);
+	regs_buff[1]  = AT_READ_REG(hw, REG_SPI_FLASH_CTRL);
+	regs_buff[2]  = AT_READ_REG(hw, REG_SPI_FLASH_CONFIG);
+	regs_buff[3]  = AT_READ_REG(hw, REG_TWSI_CTRL);
+	regs_buff[4]  = AT_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL);
+	regs_buff[5]  = AT_READ_REG(hw, REG_MASTER_CTRL);
+	regs_buff[6]  = AT_READ_REG(hw, REG_MANUAL_TIMER_INIT);
+	regs_buff[7]  = AT_READ_REG(hw, REG_IRQ_MODU_TIMER_INIT);
+	regs_buff[8]  = AT_READ_REG(hw, REG_GPHY_CTRL);
+	regs_buff[9]  = AT_READ_REG(hw, REG_CMBDISDMA_TIMER);
+	regs_buff[10] = AT_READ_REG(hw, REG_IDLE_STATUS);
+	regs_buff[11] = AT_READ_REG(hw, REG_MDIO_CTRL);
+	regs_buff[12] = AT_READ_REG(hw, REG_SERDES_LOCK);
+	regs_buff[13] = AT_READ_REG(hw, REG_MAC_CTRL);
+	regs_buff[14] = AT_READ_REG(hw, REG_MAC_IPG_IFG);
+	regs_buff[15] = AT_READ_REG(hw, REG_MAC_STA_ADDR);
+	regs_buff[16] = AT_READ_REG(hw, REG_MAC_STA_ADDR+4);
+	regs_buff[17] = AT_READ_REG(hw, REG_RX_HASH_TABLE);
+	regs_buff[18] = AT_READ_REG(hw, REG_RX_HASH_TABLE+4);
+	regs_buff[19] = AT_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL);
+	regs_buff[20] = AT_READ_REG(hw, REG_MTU);
+	regs_buff[21] = AT_READ_REG(hw, REG_WOL_CTRL);
+	regs_buff[22] = AT_READ_REG(hw, REG_SRAM_TRD_ADDR);
+	regs_buff[23] = AT_READ_REG(hw, REG_SRAM_TRD_LEN);
+	regs_buff[24] = AT_READ_REG(hw, REG_SRAM_RXF_ADDR);
+	regs_buff[25] = AT_READ_REG(hw, REG_SRAM_RXF_LEN);
+	regs_buff[26] = AT_READ_REG(hw, REG_SRAM_TXF_ADDR);
+	regs_buff[27] = AT_READ_REG(hw, REG_SRAM_TXF_LEN);
+	regs_buff[28] = AT_READ_REG(hw, REG_SRAM_TCPH_ADDR);
+	regs_buff[29] = AT_READ_REG(hw, REG_SRAM_PKTH_ADDR);
+
+	atl1e_read_phy_reg(hw, MII_BMCR, &phy_data);
+	regs_buff[73] = (u32)phy_data;
+	atl1e_read_phy_reg(hw, MII_BMSR, &phy_data);
+	regs_buff[74] = (u32)phy_data;
+}
+
+static int atl1e_get_eeprom_len(struct net_device *netdev)
+{
+	struct atl1e_adapter *adapter = netdev_priv(netdev);
+
+	if (!atl1e_check_eeprom_exist(&adapter->hw))
+		return AT_EEPROM_LEN;
+	else
+		return 0;
+}
+
+static int atl1e_get_eeprom(struct net_device *netdev,
+		struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+	struct atl1e_adapter *adapter = netdev_priv(netdev);
+	struct atl1e_hw *hw = &adapter->hw;
+	u32 *eeprom_buff;
+	int first_dword, last_dword;
+	int ret_val = 0;
+	int i;
+
+	if (eeprom->len == 0)
+		return -EINVAL;
+
+	if (atl1e_check_eeprom_exist(hw)) /* not exist */
+		return -EINVAL;
+
+	eeprom->magic = hw->vendor_id | (hw->device_id << 16);
+
+	first_dword = eeprom->offset >> 2;
+	last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
+
+	eeprom_buff = kmalloc(sizeof(u32) *
+			(last_dword - first_dword + 1), GFP_KERNEL);
+	if (eeprom_buff == NULL)
+		return -ENOMEM;
+
+	for (i = first_dword; i < last_dword; i++) {
+		if (!atl1e_read_eeprom(hw, i * 4, &(eeprom_buff[i-first_dword]))) {
+			kfree(eeprom_buff);
+			return -EIO;
+		}
+	}
+
+	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
+			eeprom->len);
+	kfree(eeprom_buff);
+
+	return ret_val;
+}
+
+static int atl1e_set_eeprom(struct net_device *netdev,
+			    struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+	struct atl1e_adapter *adapter = netdev_priv(netdev);
+	struct atl1e_hw *hw = &adapter->hw;
+	u32 *eeprom_buff;
+	u32 *ptr;
+	int first_dword, last_dword;
+	int ret_val = 0;
+	int i;
+
+	if (eeprom->len == 0)
+		return -EOPNOTSUPP;
+
+	if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
+		return -EINVAL;
+
+	first_dword = eeprom->offset >> 2;
+	last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
+	eeprom_buff = kmalloc(AT_EEPROM_LEN, GFP_KERNEL);
+	if (eeprom_buff == NULL)
+		return -ENOMEM;
+
+	ptr = (u32 *)eeprom_buff;
+
+	if (eeprom->offset & 3) {
+		/* need read/modify/write of first changed EEPROM word */
+		/* only the second byte of the word is being modified */
+		if (!atl1e_read_eeprom(hw, first_dword * 4, &(eeprom_buff[0]))) {
+			ret_val = -EIO;
+			goto out;
+		}
+		ptr++;
+	}
+	if (((eeprom->offset + eeprom->len) & 3)) {
+		/* need read/modify/write of last changed EEPROM word */
+		/* only the first byte of the word is being modified */
+
+		if (!atl1e_read_eeprom(hw, last_dword * 4,
+				&(eeprom_buff[last_dword - first_dword]))) {
+			ret_val = -EIO;
+			goto out;
+		}
+	}
+
+	/* Device's eeprom is always little-endian, word addressable */
+	memcpy(ptr, bytes, eeprom->len);
+
+	for (i = 0; i < last_dword - first_dword + 1; i++) {
+		if (!atl1e_write_eeprom(hw, ((first_dword + i) * 4),
+				  eeprom_buff[i])) {
+			ret_val = -EIO;
+			goto out;
+		}
+	}
+out:
+	kfree(eeprom_buff);
+	return ret_val;
+}
+
+static void atl1e_get_drvinfo(struct net_device *netdev,
+		struct ethtool_drvinfo *drvinfo)
+{
+	struct atl1e_adapter *adapter = netdev_priv(netdev);
+
+	strncpy(drvinfo->driver,  atl1e_driver_name, 32);
+	strncpy(drvinfo->version, atl1e_driver_version, 32);
+	strncpy(drvinfo->fw_version, "L1e", 32);
+	strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
+	drvinfo->n_stats = 0;
+	drvinfo->testinfo_len = 0;
+	drvinfo->regdump_len = atl1e_get_regs_len(netdev);
+	drvinfo->eedump_len = atl1e_get_eeprom_len(netdev);
+}
+
+static void atl1e_get_wol(struct net_device *netdev,
+			  struct ethtool_wolinfo *wol)
+{
+	struct atl1e_adapter *adapter = netdev_priv(netdev);
+
+	wol->supported = WAKE_MAGIC | WAKE_PHY;
+	wol->wolopts = 0;
+
+	if (adapter->wol & AT_WUFC_EX)
+		wol->wolopts |= WAKE_UCAST;
+	if (adapter->wol & AT_WUFC_MC)
+		wol->wolopts |= WAKE_MCAST;
+	if (adapter->wol & AT_WUFC_BC)
+		wol->wolopts |= WAKE_BCAST;
+	if (adapter->wol & AT_WUFC_MAG)
+		wol->wolopts |= WAKE_MAGIC;
+	if (adapter->wol & AT_WUFC_LNKC)
+		wol->wolopts |= WAKE_PHY;
+
+	return;
+}
+
+static int atl1e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
+{
+	struct atl1e_adapter *adapter = netdev_priv(netdev);
+
+	if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
+			    WAKE_MCAST | WAKE_BCAST | WAKE_MCAST))
+		return -EOPNOTSUPP;
+	/* these settings will always override what we currently have */
+	adapter->wol = 0;
+
+	if (wol->wolopts & WAKE_MAGIC)
+		adapter->wol |= AT_WUFC_MAG;
+	if (wol->wolopts & WAKE_PHY)
+		adapter->wol |= AT_WUFC_LNKC;
+
+	return 0;
+}
+
+static int atl1e_nway_reset(struct net_device *netdev)
+{
+	struct atl1e_adapter *adapter = netdev_priv(netdev);
+	if (netif_running(netdev))
+		atl1e_reinit_locked(adapter);
+	return 0;
+}
+
+static struct ethtool_ops atl1e_ethtool_ops = {
+	.get_settings           = atl1e_get_settings,
+	.set_settings           = atl1e_set_settings,
+	.get_drvinfo            = atl1e_get_drvinfo,
+	.get_regs_len           = atl1e_get_regs_len,
+	.get_regs               = atl1e_get_regs,
+	.get_wol                = atl1e_get_wol,
+	.set_wol                = atl1e_set_wol,
+	.get_msglevel           = atl1e_get_msglevel,
+	.set_msglevel           = atl1e_set_msglevel,
+	.nway_reset             = atl1e_nway_reset,
+	.get_link               = ethtool_op_get_link,
+	.get_eeprom_len         = atl1e_get_eeprom_len,
+	.get_eeprom             = atl1e_get_eeprom,
+	.set_eeprom             = atl1e_set_eeprom,
+	.get_tx_csum            = atl1e_get_tx_csum,
+	.get_sg                 = ethtool_op_get_sg,
+	.set_sg                 = ethtool_op_set_sg,
+#ifdef NETIF_F_TSO
+	.get_tso                = ethtool_op_get_tso,
+#endif
+};
+
+void atl1e_set_ethtool_ops(struct net_device *netdev)
+{
+	SET_ETHTOOL_OPS(netdev, &atl1e_ethtool_ops);
+}