/drivers/net/atlx/atl1.c
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- /*
- * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
- * Copyright(c) 2006 - 2007 Chris Snook <csnook@redhat.com>
- * Copyright(c) 2006 - 2008 Jay Cliburn <jcliburn@gmail.com>
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in the
- * file called COPYING.
- *
- * Contact Information:
- * Xiong Huang <xiong.huang@atheros.com>
- * Jie Yang <jie.yang@atheros.com>
- * Chris Snook <csnook@redhat.com>
- * Jay Cliburn <jcliburn@gmail.com>
- *
- * This version is adapted from the Attansic reference driver.
- *
- * TODO:
- * Add more ethtool functions.
- * Fix abstruse irq enable/disable condition described here:
- * http://marc.theaimsgroup.com/?l=linux-netdev&m=116398508500553&w=2
- *
- * NEEDS TESTING:
- * VLAN
- * multicast
- * promiscuous mode
- * interrupt coalescing
- * SMP torture testing
- */
- #include <asm/atomic.h>
- #include <asm/byteorder.h>
- #include <linux/compiler.h>
- #include <linux/crc32.h>
- #include <linux/delay.h>
- #include <linux/dma-mapping.h>
- #include <linux/etherdevice.h>
- #include <linux/hardirq.h>
- #include <linux/if_ether.h>
- #include <linux/if_vlan.h>
- #include <linux/in.h>
- #include <linux/interrupt.h>
- #include <linux/ip.h>
- #include <linux/irqflags.h>
- #include <linux/irqreturn.h>
- #include <linux/jiffies.h>
- #include <linux/mii.h>
- #include <linux/module.h>
- #include <linux/moduleparam.h>
- #include <linux/net.h>
- #include <linux/netdevice.h>
- #include <linux/pci.h>
- #include <linux/pci_ids.h>
- #include <linux/pm.h>
- #include <linux/skbuff.h>
- #include <linux/slab.h>
- #include <linux/spinlock.h>
- #include <linux/string.h>
- #include <linux/tcp.h>
- #include <linux/timer.h>
- #include <linux/types.h>
- #include <linux/workqueue.h>
- #include <net/checksum.h>
- #include "atl1.h"
- #define ATLX_DRIVER_VERSION "2.1.3"
- MODULE_AUTHOR("Xiong Huang <xiong.huang@atheros.com>, "
- "Chris Snook <csnook@redhat.com>, "
- "Jay Cliburn <jcliburn@gmail.com>");
- MODULE_LICENSE("GPL");
- MODULE_VERSION(ATLX_DRIVER_VERSION);
- /* Temporary hack for merging atl1 and atl2 */
- #include "atlx.c"
- static const struct ethtool_ops atl1_ethtool_ops;
- /*
- * This is the only thing that needs to be changed to adjust the
- * maximum number of ports that the driver can manage.
- */
- #define ATL1_MAX_NIC 4
- #define OPTION_UNSET -1
- #define OPTION_DISABLED 0
- #define OPTION_ENABLED 1
- #define ATL1_PARAM_INIT { [0 ... ATL1_MAX_NIC] = OPTION_UNSET }
- /*
- * Interrupt Moderate Timer in units of 2 us
- *
- * Valid Range: 10-65535
- *
- * Default Value: 100 (200us)
- */
- static int __devinitdata int_mod_timer[ATL1_MAX_NIC+1] = ATL1_PARAM_INIT;
- static unsigned int num_int_mod_timer;
- module_param_array_named(int_mod_timer, int_mod_timer, int,
- &num_int_mod_timer, 0);
- MODULE_PARM_DESC(int_mod_timer, "Interrupt moderator timer");
- #define DEFAULT_INT_MOD_CNT 100 /* 200us */
- #define MAX_INT_MOD_CNT 65000
- #define MIN_INT_MOD_CNT 50
- struct atl1_option {
- enum { enable_option, range_option, list_option } type;
- char *name;
- char *err;
- int def;
- union {
- struct { /* range_option info */
- int min;
- int max;
- } r;
- struct { /* list_option info */
- int nr;
- struct atl1_opt_list {
- int i;
- char *str;
- } *p;
- } l;
- } arg;
- };
- static int __devinit atl1_validate_option(int *value, struct atl1_option *opt,
- struct pci_dev *pdev)
- {
- if (*value == OPTION_UNSET) {
- *value = opt->def;
- return 0;
- }
- switch (opt->type) {
- case enable_option:
- switch (*value) {
- case OPTION_ENABLED:
- dev_info(&pdev->dev, "%s enabled\n", opt->name);
- return 0;
- case OPTION_DISABLED:
- dev_info(&pdev->dev, "%s disabled\n", opt->name);
- return 0;
- }
- break;
- case range_option:
- if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
- dev_info(&pdev->dev, "%s set to %i\n", opt->name,
- *value);
- return 0;
- }
- break;
- case list_option:{
- int i;
- struct atl1_opt_list *ent;
- for (i = 0; i < opt->arg.l.nr; i++) {
- ent = &opt->arg.l.p[i];
- if (*value == ent->i) {
- if (ent->str[0] != '\0')
- dev_info(&pdev->dev, "%s\n",
- ent->str);
- return 0;
- }
- }
- }
- break;
- default:
- break;
- }
- dev_info(&pdev->dev, "invalid %s specified (%i) %s\n",
- opt->name, *value, opt->err);
- *value = opt->def;
- return -1;
- }
- /*
- * atl1_check_options - Range Checking for Command Line Parameters
- * @adapter: board private structure
- *
- * This routine checks all command line parameters for valid user
- * input. If an invalid value is given, or if no user specified
- * value exists, a default value is used. The final value is stored
- * in a variable in the adapter structure.
- */
- static void __devinit atl1_check_options(struct atl1_adapter *adapter)
- {
- struct pci_dev *pdev = adapter->pdev;
- int bd = adapter->bd_number;
- if (bd >= ATL1_MAX_NIC) {
- dev_notice(&pdev->dev, "no configuration for board#%i\n", bd);
- dev_notice(&pdev->dev, "using defaults for all values\n");
- }
- { /* Interrupt Moderate Timer */
- struct atl1_option opt = {
- .type = range_option,
- .name = "Interrupt Moderator Timer",
- .err = "using default of "
- __MODULE_STRING(DEFAULT_INT_MOD_CNT),
- .def = DEFAULT_INT_MOD_CNT,
- .arg = {.r = {.min = MIN_INT_MOD_CNT,
- .max = MAX_INT_MOD_CNT} }
- };
- int val;
- if (num_int_mod_timer > bd) {
- val = int_mod_timer[bd];
- atl1_validate_option(&val, &opt, pdev);
- adapter->imt = (u16) val;
- } else
- adapter->imt = (u16) (opt.def);
- }
- }
- /*
- * atl1_pci_tbl - PCI Device ID Table
- */
- static DEFINE_PCI_DEVICE_TABLE(atl1_pci_tbl) = {
- {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATTANSIC_L1)},
- /* required last entry */
- {0,}
- };
- MODULE_DEVICE_TABLE(pci, atl1_pci_tbl);
- static const u32 atl1_default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE |
- NETIF_MSG_LINK | NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP;
- static int debug = -1;
- module_param(debug, int, 0);
- MODULE_PARM_DESC(debug, "Message level (0=none,...,16=all)");
- /*
- * Reset the transmit and receive units; mask and clear all interrupts.
- * hw - Struct containing variables accessed by shared code
- * return : 0 or idle status (if error)
- */
- static s32 atl1_reset_hw(struct atl1_hw *hw)
- {
- struct pci_dev *pdev = hw->back->pdev;
- struct atl1_adapter *adapter = hw->back;
- u32 icr;
- int i;
- /*
- * Clear Interrupt mask to stop board from generating
- * interrupts & Clear any pending interrupt events
- */
- /*
- * iowrite32(0, hw->hw_addr + REG_IMR);
- * iowrite32(0xffffffff, hw->hw_addr + REG_ISR);
- */
- /*
- * Issue Soft Reset to the MAC. This will reset the chip's
- * transmit, receive, DMA. It will not effect
- * the current PCI configuration. The global reset bit is self-
- * clearing, and should clear within a microsecond.
- */
- iowrite32(MASTER_CTRL_SOFT_RST, hw->hw_addr + REG_MASTER_CTRL);
- ioread32(hw->hw_addr + REG_MASTER_CTRL);
- iowrite16(1, hw->hw_addr + REG_PHY_ENABLE);
- ioread16(hw->hw_addr + REG_PHY_ENABLE);
- /* delay about 1ms */
- msleep(1);
- /* Wait at least 10ms for All module to be Idle */
- for (i = 0; i < 10; i++) {
- icr = ioread32(hw->hw_addr + REG_IDLE_STATUS);
- if (!icr)
- break;
- /* delay 1 ms */
- msleep(1);
- /* FIXME: still the right way to do this? */
- cpu_relax();
- }
- if (icr) {
- if (netif_msg_hw(adapter))
- dev_dbg(&pdev->dev, "ICR = 0x%x\n", icr);
- return icr;
- }
- return 0;
- }
- /* function about EEPROM
- *
- * check_eeprom_exist
- * return 0 if eeprom exist
- */
- static int atl1_check_eeprom_exist(struct atl1_hw *hw)
- {
- u32 value;
- value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
- if (value & SPI_FLASH_CTRL_EN_VPD) {
- value &= ~SPI_FLASH_CTRL_EN_VPD;
- iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
- }
- value = ioread16(hw->hw_addr + REG_PCIE_CAP_LIST);
- return ((value & 0xFF00) == 0x6C00) ? 0 : 1;
- }
- static bool atl1_read_eeprom(struct atl1_hw *hw, u32 offset, u32 *p_value)
- {
- int i;
- u32 control;
- if (offset & 3)
- /* address do not align */
- return false;
- iowrite32(0, hw->hw_addr + REG_VPD_DATA);
- control = (offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT;
- iowrite32(control, hw->hw_addr + REG_VPD_CAP);
- ioread32(hw->hw_addr + REG_VPD_CAP);
- for (i = 0; i < 10; i++) {
- msleep(2);
- control = ioread32(hw->hw_addr + REG_VPD_CAP);
- if (control & VPD_CAP_VPD_FLAG)
- break;
- }
- if (control & VPD_CAP_VPD_FLAG) {
- *p_value = ioread32(hw->hw_addr + REG_VPD_DATA);
- return true;
- }
- /* timeout */
- return false;
- }
- /*
- * Reads the value from a PHY register
- * hw - Struct containing variables accessed by shared code
- * reg_addr - address of the PHY register to read
- */
- static s32 atl1_read_phy_reg(struct atl1_hw *hw, u16 reg_addr, u16 *phy_data)
- {
- u32 val;
- int i;
- val = ((u32) (reg_addr & MDIO_REG_ADDR_MASK)) << MDIO_REG_ADDR_SHIFT |
- MDIO_START | MDIO_SUP_PREAMBLE | MDIO_RW | MDIO_CLK_25_4 <<
- MDIO_CLK_SEL_SHIFT;
- iowrite32(val, hw->hw_addr + REG_MDIO_CTRL);
- ioread32(hw->hw_addr + REG_MDIO_CTRL);
- for (i = 0; i < MDIO_WAIT_TIMES; i++) {
- udelay(2);
- val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
- if (!(val & (MDIO_START | MDIO_BUSY)))
- break;
- }
- if (!(val & (MDIO_START | MDIO_BUSY))) {
- *phy_data = (u16) val;
- return 0;
- }
- return ATLX_ERR_PHY;
- }
- #define CUSTOM_SPI_CS_SETUP 2
- #define CUSTOM_SPI_CLK_HI 2
- #define CUSTOM_SPI_CLK_LO 2
- #define CUSTOM_SPI_CS_HOLD 2
- #define CUSTOM_SPI_CS_HI 3
- static bool atl1_spi_read(struct atl1_hw *hw, u32 addr, u32 *buf)
- {
- int i;
- u32 value;
- iowrite32(0, hw->hw_addr + REG_SPI_DATA);
- iowrite32(addr, hw->hw_addr + REG_SPI_ADDR);
- value = SPI_FLASH_CTRL_WAIT_READY |
- (CUSTOM_SPI_CS_SETUP & SPI_FLASH_CTRL_CS_SETUP_MASK) <<
- SPI_FLASH_CTRL_CS_SETUP_SHIFT | (CUSTOM_SPI_CLK_HI &
- SPI_FLASH_CTRL_CLK_HI_MASK) <<
- SPI_FLASH_CTRL_CLK_HI_SHIFT | (CUSTOM_SPI_CLK_LO &
- SPI_FLASH_CTRL_CLK_LO_MASK) <<
- SPI_FLASH_CTRL_CLK_LO_SHIFT | (CUSTOM_SPI_CS_HOLD &
- SPI_FLASH_CTRL_CS_HOLD_MASK) <<
- SPI_FLASH_CTRL_CS_HOLD_SHIFT | (CUSTOM_SPI_CS_HI &
- SPI_FLASH_CTRL_CS_HI_MASK) <<
- SPI_FLASH_CTRL_CS_HI_SHIFT | (1 & SPI_FLASH_CTRL_INS_MASK) <<
- SPI_FLASH_CTRL_INS_SHIFT;
- iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
- value |= SPI_FLASH_CTRL_START;
- iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
- ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
- for (i = 0; i < 10; i++) {
- msleep(1);
- value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
- if (!(value & SPI_FLASH_CTRL_START))
- break;
- }
- if (value & SPI_FLASH_CTRL_START)
- return false;
- *buf = ioread32(hw->hw_addr + REG_SPI_DATA);
- return true;
- }
- /*
- * get_permanent_address
- * return 0 if get valid mac address,
- */
- static int atl1_get_permanent_address(struct atl1_hw *hw)
- {
- u32 addr[2];
- u32 i, control;
- u16 reg;
- u8 eth_addr[ETH_ALEN];
- bool key_valid;
- if (is_valid_ether_addr(hw->perm_mac_addr))
- return 0;
- /* init */
- addr[0] = addr[1] = 0;
- if (!atl1_check_eeprom_exist(hw)) {
- reg = 0;
- key_valid = false;
- /* Read out all EEPROM content */
- i = 0;
- while (1) {
- if (atl1_read_eeprom(hw, i + 0x100, &control)) {
- if (key_valid) {
- if (reg == REG_MAC_STA_ADDR)
- addr[0] = control;
- else if (reg == (REG_MAC_STA_ADDR + 4))
- addr[1] = control;
- key_valid = false;
- } else if ((control & 0xff) == 0x5A) {
- key_valid = true;
- reg = (u16) (control >> 16);
- } else
- break;
- } else
- /* read error */
- break;
- i += 4;
- }
- *(u32 *) ð_addr[2] = swab32(addr[0]);
- *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]);
- if (is_valid_ether_addr(eth_addr)) {
- memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
- return 0;
- }
- }
- /* see if SPI FLAGS exist ? */
- addr[0] = addr[1] = 0;
- reg = 0;
- key_valid = false;
- i = 0;
- while (1) {
- if (atl1_spi_read(hw, i + 0x1f000, &control)) {
- if (key_valid) {
- if (reg == REG_MAC_STA_ADDR)
- addr[0] = control;
- else if (reg == (REG_MAC_STA_ADDR + 4))
- addr[1] = control;
- key_valid = false;
- } else if ((control & 0xff) == 0x5A) {
- key_valid = true;
- reg = (u16) (control >> 16);
- } else
- /* data end */
- break;
- } else
- /* read error */
- break;
- i += 4;
- }
- *(u32 *) ð_addr[2] = swab32(addr[0]);
- *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]);
- if (is_valid_ether_addr(eth_addr)) {
- memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
- return 0;
- }
- /*
- * On some motherboards, the MAC address is written by the
- * BIOS directly to the MAC register during POST, and is
- * not stored in eeprom. If all else thus far has failed
- * to fetch the permanent MAC address, try reading it directly.
- */
- addr[0] = ioread32(hw->hw_addr + REG_MAC_STA_ADDR);
- addr[1] = ioread16(hw->hw_addr + (REG_MAC_STA_ADDR + 4));
- *(u32 *) ð_addr[2] = swab32(addr[0]);
- *(u16 *) ð_addr[0] = swab16(*(u16 *) &addr[1]);
- if (is_valid_ether_addr(eth_addr)) {
- memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
- return 0;
- }
- return 1;
- }
- /*
- * Reads the adapter's MAC address from the EEPROM
- * hw - Struct containing variables accessed by shared code
- */
- static s32 atl1_read_mac_addr(struct atl1_hw *hw)
- {
- u16 i;
- if (atl1_get_permanent_address(hw))
- random_ether_addr(hw->perm_mac_addr);
- for (i = 0; i < ETH_ALEN; i++)
- hw->mac_addr[i] = hw->perm_mac_addr[i];
- return 0;
- }
- /*
- * Hashes an address to determine its location in the multicast table
- * hw - Struct containing variables accessed by shared code
- * mc_addr - the multicast address to hash
- *
- * atl1_hash_mc_addr
- * purpose
- * set hash value for a multicast address
- * hash calcu processing :
- * 1. calcu 32bit CRC for multicast address
- * 2. reverse crc with MSB to LSB
- */
- static u32 atl1_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr)
- {
- u32 crc32, value = 0;
- int i;
- crc32 = ether_crc_le(6, mc_addr);
- for (i = 0; i < 32; i++)
- value |= (((crc32 >> i) & 1) << (31 - i));
- return value;
- }
- /*
- * Sets the bit in the multicast table corresponding to the hash value.
- * hw - Struct containing variables accessed by shared code
- * hash_value - Multicast address hash value
- */
- static void atl1_hash_set(struct atl1_hw *hw, u32 hash_value)
- {
- u32 hash_bit, hash_reg;
- u32 mta;
- /*
- * The HASH Table is a register array of 2 32-bit registers.
- * It is treated like an array of 64 bits. We want to set
- * bit BitArray[hash_value]. So we figure out what register
- * the bit is in, read it, OR in the new bit, then write
- * back the new value. The register is determined by the
- * upper 7 bits of the hash value and the bit within that
- * register are determined by the lower 5 bits of the value.
- */
- hash_reg = (hash_value >> 31) & 0x1;
- hash_bit = (hash_value >> 26) & 0x1F;
- mta = ioread32((hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2));
- mta |= (1 << hash_bit);
- iowrite32(mta, (hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2));
- }
- /*
- * Writes a value to a PHY register
- * hw - Struct containing variables accessed by shared code
- * reg_addr - address of the PHY register to write
- * data - data to write to the PHY
- */
- static s32 atl1_write_phy_reg(struct atl1_hw *hw, u32 reg_addr, u16 phy_data)
- {
- int i;
- u32 val;
- val = ((u32) (phy_data & MDIO_DATA_MASK)) << MDIO_DATA_SHIFT |
- (reg_addr & MDIO_REG_ADDR_MASK) << MDIO_REG_ADDR_SHIFT |
- MDIO_SUP_PREAMBLE |
- MDIO_START | MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT;
- iowrite32(val, hw->hw_addr + REG_MDIO_CTRL);
- ioread32(hw->hw_addr + REG_MDIO_CTRL);
- for (i = 0; i < MDIO_WAIT_TIMES; i++) {
- udelay(2);
- val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
- if (!(val & (MDIO_START | MDIO_BUSY)))
- break;
- }
- if (!(val & (MDIO_START | MDIO_BUSY)))
- return 0;
- return ATLX_ERR_PHY;
- }
- /*
- * Make L001's PHY out of Power Saving State (bug)
- * hw - Struct containing variables accessed by shared code
- * when power on, L001's PHY always on Power saving State
- * (Gigabit Link forbidden)
- */
- static s32 atl1_phy_leave_power_saving(struct atl1_hw *hw)
- {
- s32 ret;
- ret = atl1_write_phy_reg(hw, 29, 0x0029);
- if (ret)
- return ret;
- return atl1_write_phy_reg(hw, 30, 0);
- }
- /*
- * Resets the PHY and make all config validate
- * hw - Struct containing variables accessed by shared code
- *
- * Sets bit 15 and 12 of the MII Control regiser (for F001 bug)
- */
- static s32 atl1_phy_reset(struct atl1_hw *hw)
- {
- struct pci_dev *pdev = hw->back->pdev;
- struct atl1_adapter *adapter = hw->back;
- s32 ret_val;
- u16 phy_data;
- if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
- hw->media_type == MEDIA_TYPE_1000M_FULL)
- phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
- else {
- switch (hw->media_type) {
- case MEDIA_TYPE_100M_FULL:
- phy_data =
- MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
- MII_CR_RESET;
- break;
- case MEDIA_TYPE_100M_HALF:
- phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
- break;
- case MEDIA_TYPE_10M_FULL:
- phy_data =
- MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
- break;
- default:
- /* MEDIA_TYPE_10M_HALF: */
- phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
- break;
- }
- }
- ret_val = atl1_write_phy_reg(hw, MII_BMCR, phy_data);
- if (ret_val) {
- u32 val;
- int i;
- /* pcie serdes link may be down! */
- if (netif_msg_hw(adapter))
- dev_dbg(&pdev->dev, "pcie phy link down\n");
- for (i = 0; i < 25; i++) {
- msleep(1);
- val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
- if (!(val & (MDIO_START | MDIO_BUSY)))
- break;
- }
- if ((val & (MDIO_START | MDIO_BUSY)) != 0) {
- if (netif_msg_hw(adapter))
- dev_warn(&pdev->dev,
- "pcie link down at least 25ms\n");
- return ret_val;
- }
- }
- return 0;
- }
- /*
- * Configures PHY autoneg and flow control advertisement settings
- * hw - Struct containing variables accessed by shared code
- */
- static s32 atl1_phy_setup_autoneg_adv(struct atl1_hw *hw)
- {
- s32 ret_val;
- s16 mii_autoneg_adv_reg;
- s16 mii_1000t_ctrl_reg;
- /* Read the MII Auto-Neg Advertisement Register (Address 4). */
- mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK;
- /* Read the MII 1000Base-T Control Register (Address 9). */
- mii_1000t_ctrl_reg = MII_ATLX_CR_1000T_DEFAULT_CAP_MASK;
- /*
- * First we clear all the 10/100 mb speed bits in the Auto-Neg
- * Advertisement Register (Address 4) and the 1000 mb speed bits in
- * the 1000Base-T Control Register (Address 9).
- */
- mii_autoneg_adv_reg &= ~MII_AR_SPEED_MASK;
- mii_1000t_ctrl_reg &= ~MII_ATLX_CR_1000T_SPEED_MASK;
- /*
- * Need to parse media_type and set up
- * the appropriate PHY registers.
- */
- switch (hw->media_type) {
- case MEDIA_TYPE_AUTO_SENSOR:
- mii_autoneg_adv_reg |= (MII_AR_10T_HD_CAPS |
- MII_AR_10T_FD_CAPS |
- MII_AR_100TX_HD_CAPS |
- MII_AR_100TX_FD_CAPS);
- mii_1000t_ctrl_reg |= MII_ATLX_CR_1000T_FD_CAPS;
- break;
- case MEDIA_TYPE_1000M_FULL:
- mii_1000t_ctrl_reg |= MII_ATLX_CR_1000T_FD_CAPS;
- break;
- case MEDIA_TYPE_100M_FULL:
- mii_autoneg_adv_reg |= MII_AR_100TX_FD_CAPS;
- break;
- case MEDIA_TYPE_100M_HALF:
- mii_autoneg_adv_reg |= MII_AR_100TX_HD_CAPS;
- break;
- case MEDIA_TYPE_10M_FULL:
- mii_autoneg_adv_reg |= MII_AR_10T_FD_CAPS;
- break;
- default:
- mii_autoneg_adv_reg |= MII_AR_10T_HD_CAPS;
- break;
- }
- /* flow control fixed to enable all */
- mii_autoneg_adv_reg |= (MII_AR_ASM_DIR | MII_AR_PAUSE);
- hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg;
- hw->mii_1000t_ctrl_reg = mii_1000t_ctrl_reg;
- ret_val = atl1_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg);
- if (ret_val)
- return ret_val;
- ret_val = atl1_write_phy_reg(hw, MII_ATLX_CR, mii_1000t_ctrl_reg);
- if (ret_val)
- return ret_val;
- return 0;
- }
- /*
- * Configures link settings.
- * hw - Struct containing variables accessed by shared code
- * Assumes the hardware has previously been reset and the
- * transmitter and receiver are not enabled.
- */
- static s32 atl1_setup_link(struct atl1_hw *hw)
- {
- struct pci_dev *pdev = hw->back->pdev;
- struct atl1_adapter *adapter = hw->back;
- s32 ret_val;
- /*
- * Options:
- * PHY will advertise value(s) parsed from
- * autoneg_advertised and fc
- * no matter what autoneg is , We will not wait link result.
- */
- ret_val = atl1_phy_setup_autoneg_adv(hw);
- if (ret_val) {
- if (netif_msg_link(adapter))
- dev_dbg(&pdev->dev,
- "error setting up autonegotiation\n");
- return ret_val;
- }
- /* SW.Reset , En-Auto-Neg if needed */
- ret_val = atl1_phy_reset(hw);
- if (ret_val) {
- if (netif_msg_link(adapter))
- dev_dbg(&pdev->dev, "error resetting phy\n");
- return ret_val;
- }
- hw->phy_configured = true;
- return ret_val;
- }
- static void atl1_init_flash_opcode(struct atl1_hw *hw)
- {
- if (hw->flash_vendor >= ARRAY_SIZE(flash_table))
- /* Atmel */
- hw->flash_vendor = 0;
- /* Init OP table */
- iowrite8(flash_table[hw->flash_vendor].cmd_program,
- hw->hw_addr + REG_SPI_FLASH_OP_PROGRAM);
- iowrite8(flash_table[hw->flash_vendor].cmd_sector_erase,
- hw->hw_addr + REG_SPI_FLASH_OP_SC_ERASE);
- iowrite8(flash_table[hw->flash_vendor].cmd_chip_erase,
- hw->hw_addr + REG_SPI_FLASH_OP_CHIP_ERASE);
- iowrite8(flash_table[hw->flash_vendor].cmd_rdid,
- hw->hw_addr + REG_SPI_FLASH_OP_RDID);
- iowrite8(flash_table[hw->flash_vendor].cmd_wren,
- hw->hw_addr + REG_SPI_FLASH_OP_WREN);
- iowrite8(flash_table[hw->flash_vendor].cmd_rdsr,
- hw->hw_addr + REG_SPI_FLASH_OP_RDSR);
- iowrite8(flash_table[hw->flash_vendor].cmd_wrsr,
- hw->hw_addr + REG_SPI_FLASH_OP_WRSR);
- iowrite8(flash_table[hw->flash_vendor].cmd_read,
- hw->hw_addr + REG_SPI_FLASH_OP_READ);
- }
- /*
- * Performs basic configuration of the adapter.
- * hw - Struct containing variables accessed by shared code
- * Assumes that the controller has previously been reset and is in a
- * post-reset uninitialized state. Initializes multicast table,
- * and Calls routines to setup link
- * Leaves the transmit and receive units disabled and uninitialized.
- */
- static s32 atl1_init_hw(struct atl1_hw *hw)
- {
- u32 ret_val = 0;
- /* Zero out the Multicast HASH table */
- iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE);
- /* clear the old settings from the multicast hash table */
- iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2));
- atl1_init_flash_opcode(hw);
- if (!hw->phy_configured) {
- /* enable GPHY LinkChange Interrrupt */
- ret_val = atl1_write_phy_reg(hw, 18, 0xC00);
- if (ret_val)
- return ret_val;
- /* make PHY out of power-saving state */
- ret_val = atl1_phy_leave_power_saving(hw);
- if (ret_val)
- return ret_val;
- /* Call a subroutine to configure the link */
- ret_val = atl1_setup_link(hw);
- }
- return ret_val;
- }
- /*
- * Detects the current speed and duplex settings of the hardware.
- * hw - Struct containing variables accessed by shared code
- * speed - Speed of the connection
- * duplex - Duplex setting of the connection
- */
- static s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex)
- {
- struct pci_dev *pdev = hw->back->pdev;
- struct atl1_adapter *adapter = hw->back;
- s32 ret_val;
- u16 phy_data;
- /* ; --- Read PHY Specific Status Register (17) */
- ret_val = atl1_read_phy_reg(hw, MII_ATLX_PSSR, &phy_data);
- if (ret_val)
- return ret_val;
- if (!(phy_data & MII_ATLX_PSSR_SPD_DPLX_RESOLVED))
- return ATLX_ERR_PHY_RES;
- switch (phy_data & MII_ATLX_PSSR_SPEED) {
- case MII_ATLX_PSSR_1000MBS:
- *speed = SPEED_1000;
- break;
- case MII_ATLX_PSSR_100MBS:
- *speed = SPEED_100;
- break;
- case MII_ATLX_PSSR_10MBS:
- *speed = SPEED_10;
- break;
- default:
- if (netif_msg_hw(adapter))
- dev_dbg(&pdev->dev, "error getting speed\n");
- return ATLX_ERR_PHY_SPEED;
- break;
- }
- if (phy_data & MII_ATLX_PSSR_DPLX)
- *duplex = FULL_DUPLEX;
- else
- *duplex = HALF_DUPLEX;
- return 0;
- }
- static void atl1_set_mac_addr(struct atl1_hw *hw)
- {
- u32 value;
- /*
- * 00-0B-6A-F6-00-DC
- * 0: 6AF600DC 1: 000B
- * low dword
- */
- value = (((u32) hw->mac_addr[2]) << 24) |
- (((u32) hw->mac_addr[3]) << 16) |
- (((u32) hw->mac_addr[4]) << 8) | (((u32) hw->mac_addr[5]));
- iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR);
- /* high dword */
- value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1]));
- iowrite32(value, (hw->hw_addr + REG_MAC_STA_ADDR) + (1 << 2));
- }
- /*
- * atl1_sw_init - Initialize general software structures (struct atl1_adapter)
- * @adapter: board private structure to initialize
- *
- * atl1_sw_init initializes the Adapter private data structure.
- * Fields are initialized based on PCI device information and
- * OS network device settings (MTU size).
- */
- static int __devinit atl1_sw_init(struct atl1_adapter *adapter)
- {
- struct atl1_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- hw->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
- hw->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
- adapter->wol = 0;
- device_set_wakeup_enable(&adapter->pdev->dev, false);
- adapter->rx_buffer_len = (hw->max_frame_size + 7) & ~7;
- adapter->ict = 50000; /* 100ms */
- adapter->link_speed = SPEED_0; /* hardware init */
- adapter->link_duplex = FULL_DUPLEX;
- hw->phy_configured = false;
- hw->preamble_len = 7;
- hw->ipgt = 0x60;
- hw->min_ifg = 0x50;
- hw->ipgr1 = 0x40;
- hw->ipgr2 = 0x60;
- hw->max_retry = 0xf;
- hw->lcol = 0x37;
- hw->jam_ipg = 7;
- hw->rfd_burst = 8;
- hw->rrd_burst = 8;
- hw->rfd_fetch_gap = 1;
- hw->rx_jumbo_th = adapter->rx_buffer_len / 8;
- hw->rx_jumbo_lkah = 1;
- hw->rrd_ret_timer = 16;
- hw->tpd_burst = 4;
- hw->tpd_fetch_th = 16;
- hw->txf_burst = 0x100;
- hw->tx_jumbo_task_th = (hw->max_frame_size + 7) >> 3;
- hw->tpd_fetch_gap = 1;
- hw->rcb_value = atl1_rcb_64;
- hw->dma_ord = atl1_dma_ord_enh;
- hw->dmar_block = atl1_dma_req_256;
- hw->dmaw_block = atl1_dma_req_256;
- hw->cmb_rrd = 4;
- hw->cmb_tpd = 4;
- hw->cmb_rx_timer = 1; /* about 2us */
- hw->cmb_tx_timer = 1; /* about 2us */
- hw->smb_timer = 100000; /* about 200ms */
- spin_lock_init(&adapter->lock);
- spin_lock_init(&adapter->mb_lock);
- return 0;
- }
- static int mdio_read(struct net_device *netdev, int phy_id, int reg_num)
- {
- struct atl1_adapter *adapter = netdev_priv(netdev);
- u16 result;
- atl1_read_phy_reg(&adapter->hw, reg_num & 0x1f, &result);
- return result;
- }
- static void mdio_write(struct net_device *netdev, int phy_id, int reg_num,
- int val)
- {
- struct atl1_adapter *adapter = netdev_priv(netdev);
- atl1_write_phy_reg(&adapter->hw, reg_num, val);
- }
- /*
- * atl1_mii_ioctl -
- * @netdev:
- * @ifreq:
- * @cmd:
- */
- static int atl1_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
- {
- struct atl1_adapter *adapter = netdev_priv(netdev);
- unsigned long flags;
- int retval;
- if (!netif_running(netdev))
- return -EINVAL;
- spin_lock_irqsave(&adapter->lock, flags);
- retval = generic_mii_ioctl(&adapter->mii, if_mii(ifr), cmd, NULL);
- spin_unlock_irqrestore(&adapter->lock, flags);
- return retval;
- }
- /*
- * atl1_setup_mem_resources - allocate Tx / RX descriptor resources
- * @adapter: board private structure
- *
- * Return 0 on success, negative on failure
- */
- static s32 atl1_setup_ring_resources(struct atl1_adapter *adapter)
- {
- struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
- struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
- struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
- struct atl1_ring_header *ring_header = &adapter->ring_header;
- struct pci_dev *pdev = adapter->pdev;
- int size;
- u8 offset = 0;
- size = sizeof(struct atl1_buffer) * (tpd_ring->count + rfd_ring->count);
- tpd_ring->buffer_info = kzalloc(size, GFP_KERNEL);
- if (unlikely(!tpd_ring->buffer_info)) {
- if (netif_msg_drv(adapter))
- dev_err(&pdev->dev, "kzalloc failed , size = D%d\n",
- size);
- goto err_nomem;
- }
- rfd_ring->buffer_info =
- (struct atl1_buffer *)(tpd_ring->buffer_info + tpd_ring->count);
- /*
- * real ring DMA buffer
- * each ring/block may need up to 8 bytes for alignment, hence the
- * additional 40 bytes tacked onto the end.
- */
- ring_header->size = size =
- sizeof(struct tx_packet_desc) * tpd_ring->count
- + sizeof(struct rx_free_desc) * rfd_ring->count
- + sizeof(struct rx_return_desc) * rrd_ring->count
- + sizeof(struct coals_msg_block)
- + sizeof(struct stats_msg_block)
- + 40;
- ring_header->desc = pci_alloc_consistent(pdev, ring_header->size,
- &ring_header->dma);
- if (unlikely(!ring_header->desc)) {
- if (netif_msg_drv(adapter))
- dev_err(&pdev->dev, "pci_alloc_consistent failed\n");
- goto err_nomem;
- }
- memset(ring_header->desc, 0, ring_header->size);
- /* init TPD ring */
- tpd_ring->dma = ring_header->dma;
- offset = (tpd_ring->dma & 0x7) ? (8 - (ring_header->dma & 0x7)) : 0;
- tpd_ring->dma += offset;
- tpd_ring->desc = (u8 *) ring_header->desc + offset;
- tpd_ring->size = sizeof(struct tx_packet_desc) * tpd_ring->count;
- /* init RFD ring */
- rfd_ring->dma = tpd_ring->dma + tpd_ring->size;
- offset = (rfd_ring->dma & 0x7) ? (8 - (rfd_ring->dma & 0x7)) : 0;
- rfd_ring->dma += offset;
- rfd_ring->desc = (u8 *) tpd_ring->desc + (tpd_ring->size + offset);
- rfd_ring->size = sizeof(struct rx_free_desc) * rfd_ring->count;
- /* init RRD ring */
- rrd_ring->dma = rfd_ring->dma + rfd_ring->size;
- offset = (rrd_ring->dma & 0x7) ? (8 - (rrd_ring->dma & 0x7)) : 0;
- rrd_ring->dma += offset;
- rrd_ring->desc = (u8 *) rfd_ring->desc + (rfd_ring->size + offset);
- rrd_ring->size = sizeof(struct rx_return_desc) * rrd_ring->count;
- /* init CMB */
- adapter->cmb.dma = rrd_ring->dma + rrd_ring->size;
- offset = (adapter->cmb.dma & 0x7) ? (8 - (adapter->cmb.dma & 0x7)) : 0;
- adapter->cmb.dma += offset;
- adapter->cmb.cmb = (struct coals_msg_block *)
- ((u8 *) rrd_ring->desc + (rrd_ring->size + offset));
- /* init SMB */
- adapter->smb.dma = adapter->cmb.dma + sizeof(struct coals_msg_block);
- offset = (adapter->smb.dma & 0x7) ? (8 - (adapter->smb.dma & 0x7)) : 0;
- adapter->smb.dma += offset;
- adapter->smb.smb = (struct stats_msg_block *)
- ((u8 *) adapter->cmb.cmb +
- (sizeof(struct coals_msg_block) + offset));
- return 0;
- err_nomem:
- kfree(tpd_ring->buffer_info);
- return -ENOMEM;
- }
- static void atl1_init_ring_ptrs(struct atl1_adapter *adapter)
- {
- struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
- struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
- struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
- atomic_set(&tpd_ring->next_to_use, 0);
- atomic_set(&tpd_ring->next_to_clean, 0);
- rfd_ring->next_to_clean = 0;
- atomic_set(&rfd_ring->next_to_use, 0);
- rrd_ring->next_to_use = 0;
- atomic_set(&rrd_ring->next_to_clean, 0);
- }
- /*
- * atl1_clean_rx_ring - Free RFD Buffers
- * @adapter: board private structure
- */
- static void atl1_clean_rx_ring(struct atl1_adapter *adapter)
- {
- struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
- struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
- struct atl1_buffer *buffer_info;
- struct pci_dev *pdev = adapter->pdev;
- unsigned long size;
- unsigned int i;
- /* Free all the Rx ring sk_buffs */
- for (i = 0; i < rfd_ring->count; i++) {
- buffer_info = &rfd_ring->buffer_info[i];
- if (buffer_info->dma) {
- pci_unmap_page(pdev, buffer_info->dma,
- buffer_info->length, PCI_DMA_FROMDEVICE);
- buffer_info->dma = 0;
- }
- if (buffer_info->skb) {
- dev_kfree_skb(buffer_info->skb);
- buffer_info->skb = NULL;
- }
- }
- size = sizeof(struct atl1_buffer) * rfd_ring->count;
- memset(rfd_ring->buffer_info, 0, size);
- /* Zero out the descriptor ring */
- memset(rfd_ring->desc, 0, rfd_ring->size);
- rfd_ring->next_to_clean = 0;
- atomic_set(&rfd_ring->next_to_use, 0);
- rrd_ring->next_to_use = 0;
- atomic_set(&rrd_ring->next_to_clean, 0);
- }
- /*
- * atl1_clean_tx_ring - Free Tx Buffers
- * @adapter: board private structure
- */
- static void atl1_clean_tx_ring(struct atl1_adapter *adapter)
- {
- struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
- struct atl1_buffer *buffer_info;
- struct pci_dev *pdev = adapter->pdev;
- unsigned long size;
- unsigned int i;
- /* Free all the Tx ring sk_buffs */
- for (i = 0; i < tpd_ring->count; i++) {
- buffer_info = &tpd_ring->buffer_info[i];
- if (buffer_info->dma) {
- pci_unmap_page(pdev, buffer_info->dma,
- buffer_info->length, PCI_DMA_TODEVICE);
- buffer_info->dma = 0;
- }
- }
- for (i = 0; i < tpd_ring->count; i++) {
- buffer_info = &tpd_ring->buffer_info[i];
- if (buffer_info->skb) {
- dev_kfree_skb_any(buffer_info->skb);
- buffer_info->skb = NULL;
- }
- }
- size = sizeof(struct atl1_buffer) * tpd_ring->count;
- memset(tpd_ring->buffer_info, 0, size);
- /* Zero out the descriptor ring */
- memset(tpd_ring->desc, 0, tpd_ring->size);
- atomic_set(&tpd_ring->next_to_use, 0);
- atomic_set(&tpd_ring->next_to_clean, 0);
- }
- /*
- * atl1_free_ring_resources - Free Tx / RX descriptor Resources
- * @adapter: board private structure
- *
- * Free all transmit software resources
- */
- static void atl1_free_ring_resources(struct atl1_adapter *adapter)
- {
- struct pci_dev *pdev = adapter->pdev;
- struct atl1_tpd_ring *tpd_ring = &adapter->tpd_ring;
- struct atl1_rfd_ring *rfd_ring = &adapter->rfd_ring;
- struct atl1_rrd_ring *rrd_ring = &adapter->rrd_ring;
- struct atl1_ring_header *ring_header = &adapter->ring_header;
- atl1_clean_tx_ring(adapter);
- atl1_clean_rx_ring(adapter);
- kfree(tpd_ring->buffer_info);
- pci_free_consistent(pdev, ring_header->size, ring_header->desc,
- ring_header->dma);
- tpd_ring->buffer_info = NULL;
- tpd_ring->desc = NULL;
- tpd_ring->dma = 0;
- rfd_ring->buffer_info = NULL;
- rfd_ring->desc = NULL;
- rfd_ring->dma = 0;
- rrd_ring->desc = NULL;
- rrd_ring->dma = 0;
- adapter->cmb.dma = 0;
- adapter->cmb.cmb = NULL;
- adapter->smb.dma = 0;
- adapter->smb.smb = NULL;
- }
- static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter)
- {
- u32 value;
- struct atl1_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- /* Config MAC CTRL Register */
- value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN;
- /* duplex */
- if (FULL_DUPLEX == adapter->link_duplex)
- value |= MAC_CTRL_DUPLX;
- /* speed */
- value |= ((u32) ((SPEED_1000 == adapter->link_speed) ?
- MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100) <<
- MAC_CTRL_SPEED_SHIFT);
- /* flow control */
- value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW);
- /* PAD & CRC */
- value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
- /* preamble length */
- value |= (((u32) adapter->hw.preamble_len
- & MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
- /* vlan */
- if (adapter->vlgrp)
- value |= MAC_CTRL_RMV_VLAN;
- /* rx checksum
- if (adapter->rx_csum)
- value |= MAC_CTRL_RX_CHKSUM_EN;
- */
- /* filter mode */
- value |= MAC_CTRL_BC_EN;
- if (netdev->flags & IFF_PROMISC)
- value |= MAC_CTRL_PROMIS_EN;
- else if (netdev->flags & IFF_ALLMULTI)
- value |= MAC_CTRL_MC_ALL_EN;
- /* value |= MAC_CTRL_LOOPBACK; */
- iowrite32(value, hw->hw_addr + REG_MAC_CTRL);
- }
- static u32 atl1_check_link(struct atl1_adapter *adapter)
- {
- struct atl1_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- u32 ret_val;
- u16 speed, duplex, phy_data;
- int reconfig = 0;
- /* MII_BMSR must read twice */
- atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
- atl1_read_phy_reg(hw, MII_BMSR, &phy_data);
- if (!(phy_data & BMSR_LSTATUS)) {
- /* link down */
- if (netif_carrier_ok(netdev)) {
- /* old link state: Up */
- if (netif_msg_link(adapter))
- dev_info(&adapter->pdev->dev, "link is down\n");
- adapter->link_speed = SPEED_0;
- netif_carrier_off(netdev);
- }
- return 0;
- }
- /* Link Up */
- ret_val = atl1_get_speed_and_duplex(hw, &speed, &duplex);
- if (ret_val)
- return ret_val;
- switch (hw->media_type) {
- case MEDIA_TYPE_1000M_FULL:
- if (speed != SPEED_1000 || duplex != FULL_DUPLEX)
- reconfig = 1;
- break;
- case MEDIA_TYPE_100M_FULL:
- if (speed != SPEED_100 || duplex != FULL_DUPLEX)
- reconfig = 1;
- break;
- case MEDIA_TYPE_100M_HALF:
- if (speed != SPEED_100 || duplex != HALF_DUPLEX)
- reconfig = 1;
- break;
- case MEDIA_TYPE_10M_FULL:
- if (speed != SPEED_10 || duplex != FULL_DUPLEX)
- reconfig = 1;
- break;
- case MEDIA_TYPE_10M_HALF:
- if (speed != SPEED_10 || duplex != HALF_DUPLEX)
- reconfig = 1;
- break;
- }
- /* link result is our setting */
- if (!reconfig) {
- if (adapter->link_speed != speed ||
- adapter->link_duplex != duplex) {
- adapter->link_speed = speed;
- adapter->link_duplex = duplex;
- atl1_setup_mac_ctrl(adapter);
- if (netif_msg_link(adapter))
- dev_info(&adapter->pdev->dev,
- "%s link is up %d Mbps %s\n",
- netdev->name, adapter->link_speed,
- adapter->link_duplex == FULL_DUPLEX ?
- "full duplex" : "half duplex");
- }
- if (!netif_carrier_ok(netdev)) {
- /* Link down -> Up */
- netif_carrier_on(netdev);
- }
- return 0;
- }
- /* change original link status */
- if (netif_carrier_ok(netdev)) {
- adapter->link_speed = SPEED_0;
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
- }
- if (hw->media_type != MEDIA_TYPE_AUTO_SENSOR &&
- hw->media_type != MEDIA_TYPE_1000M_FULL) {
- switch (hw->media_type) {
- case MEDIA_TYPE_100M_FULL:
- phy_data = MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
- MII_CR_RESET;
- break;
- case MEDIA_TYPE_100M_HALF:
- phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
- break;
- case MEDIA_TYPE_10M_FULL:
- phy_data =
- MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
- break;
- default:
- /* MEDIA_TYPE_10M_HALF: */
- phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
- break;
- }
- atl1_write_phy_reg(hw, MII_BMCR, phy_data);
- return 0;
- }
- /* auto-neg, insert timer to re-config phy */
- if (!adapter->phy_timer_pending) {
- adapter->phy_timer_pending = true;
- mod_timer(&adapter->phy_config_timer,
- round_jiffies(jiffies + 3 * HZ));
- }
- return 0;
- }
- static void set_flow_ctrl_old(struct atl1_adapter *adapter)
- {
- u32 hi, lo, value;
- /* RFD Flow Control */
- value = adapter->rfd_ring.count;
- hi = value / 16;
- if (hi < 2)
- hi = 2;
- lo = value * 7 / 8;
- value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
- ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
- iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
- /* RRD Flow Control */
- value = adapter->rrd_ring.count;
- lo = value / 16;
- hi = value * 7 / 8;
- if (lo < 2)
- lo = 2;
- value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
- ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
- iowrite32(value, adapter->hw.hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
- }
- static void set_flow_ctrl_new(struct atl1_hw *hw)
- {
- u32 hi, lo, value;
- /* RXF Flow Control */
- value = ioread32(hw->hw_addr + REG_SRAM_RXF_LEN);
- lo = value / 16;
- if (lo < 192)
- lo = 192;
- hi = value * 7 / 8;
- if (hi < lo)
- hi = lo + 16;
- value = ((hi & RXQ_RXF_PAUSE_TH_HI_MASK) << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
- ((lo & RXQ_RXF_PAUSE_TH_LO_MASK) << RXQ_RXF_PAUSE_TH_LO_SHIFT);
- iowrite32(value, hw->hw_addr + REG_RXQ_RXF_PAUSE_THRESH);
- /* RRD Flow Control */
- value = ioread32(hw->hw_addr + REG_SRAM_RRD_LEN);
- lo = value / 8;
- hi = value * 7 / 8;
- if (lo < 2)
- lo = 2;
- if (hi < lo)
- hi = lo + 3;
- value = ((hi & RXQ_RRD_PAUSE_TH_HI_MASK) << RXQ_RRD_PAUSE_TH_HI_SHIFT) |
- ((lo & RXQ_RRD_PAUSE_TH_LO_MASK) << RXQ_RRD_PAUSE_TH_LO_SHIFT);
- iowrite32(value, hw->hw_addr + REG_RXQ_RRD_PAUSE_THRESH);
- }
- /*
- * atl1_configure - Configure Transmit&Receive Unit after Reset
- * @adapter: board private structure
- *
- * Configure the Tx /Rx unit of the MAC after a reset.
- */
- static u32 atl1_configure(struct atl1_adapter *adapter)
- {
- struct atl1_hw *hw = &adapter->hw;
- u32 value;
- /* clear interrupt status */
- iowrite32(0xffffffff, adapter->hw.hw_addr + REG_ISR);
- /* set MAC Address */
- value = (((u32) hw->mac_addr[2]) << 24) |
- (((u32) hw->mac_addr[3]) << 16) |
- (((u32) hw->mac_addr[4]) << 8) |
- (((u32) hw->mac_addr[5]));
- iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR);
- value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1]));
- iowrite32(value, hw->hw_addr + (REG_MAC_STA_ADDR + 4));
- /* tx / rx ring */
- /* HI base address */
- iowrite32((u32) ((adapter->tpd_ring.dma & 0xffffffff00000000ULL) >> 32),
- hw->hw_addr + REG_DESC_BASE_ADDR_HI);
- /* LO base address */
- iowrite32((u32) (adapter->rfd_ring.dma & 0x00000000ffffffffULL),
- hw->hw_addr + REG_DESC_RFD_ADDR_LO);
- iowrite32((u32) (adapter->rrd_ring.dma & 0x00000000ffffffffULL),
- hw->hw_addr + REG_DESC_RRD_ADDR_LO);
- iowrite32((u32) (adapter->tpd_ring.dma & 0x00000000ffffffffULL),
- hw->hw_addr + REG_DESC_TPD_ADDR_LO);
- iowrite32((u32) (adapter->cmb.dma & 0x00000000ffffffffULL),
- hw->hw_addr + REG_DESC_CMB_ADDR_LO);
- iowrite32((u32) (adapter->smb.dma & 0x00000000ffffffffULL),
- hw->hw_addr + REG_DESC_SMB_ADDR_LO);
- /* element count */
- value = adapter->rrd_ring.count;
- value <<= 16;
- value += adapter->rfd_ring.count;
- iowrite32(value, hw->hw_addr + REG_DESC_RFD_RRD_RING_SIZE);
- iowrite32(adapter->tpd_ring.count, hw->hw_addr +
- REG_DESC_TPD_RING_SIZE);
- /* Load Ptr */
- iowrite32(1, hw->hw_addr + REG_LOAD_PTR);
- /* config Mailbox */
- value = ((atomic_read(&adapter->tpd_ring.next_to_use)
- & MB_TPD_PROD_INDX_MASK) << MB_TPD_PROD_INDX_SHIFT) |
- ((atomic_read(&adapter->rrd_ring.next_to_clean)
- & MB_RRD_CONS_INDX_MASK) << MB_RRD_CONS_INDX_SHIFT) |
- ((atomic_read(&adapter->rfd_ring.next_to_use)
- & MB_RFD_PROD_INDX_MASK) << MB_RFD_PROD_INDX_SHIFT);
- iowrite32(value, hw->hw_addr + REG_MAILBOX);
- /* config IPG/IFG */
- value = (((u32) hw->ipgt & MAC_IPG_IFG_IPGT_MASK)
- << MAC_IPG_IFG_IPGT_SHIFT) |
- (((u32) hw->min_ifg & MAC_IPG_IFG_MIFG_MASK)
- << MAC_IPG_IFG_MIFG_SHIFT) |
- (((u32) hw->ipgr1 & MAC_IPG_IFG_IPGR1_MASK)
- << MAC_IPG_IFG_IPGR1_SHIFT) |
- (((u32) hw->ipgr2 & MAC_IPG_IFG_IPGR2_MASK)
- << MAC_IPG_IFG_IPGR2_SHIFT);
- iowrite32(value, hw->hw_addr + REG_MAC_IPG_IFG);
- /* config Half-Duplex Control */
- value = ((u32) hw->lcol & MAC_HALF_DUPLX_CTRL_LCOL_MASK) |
- (((u32) hw->max_retry & MAC_HALF_DUPLX_CTRL_RETRY_MASK)
- << MAC_HALF_DUPLX_CTRL_RETRY_SHIFT) |
- MAC_HALF_DUPLX_CTRL_EXC_DEF_EN |
- (0xa << MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT) |
- (((u32) hw->jam_ipg & MAC_HALF_DUPLX_CTRL_JAMIPG_MASK)
- << MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT);
- iowrite32(value, hw->hw_addr + REG_MAC_HALF_DUPLX_CTRL);
- /* set Interrupt Moderator Timer */
- iowrite16(adapter->imt, hw->hw_addr + REG_IRQ_MODU_TIMER_INIT);
- iowrite32(MASTER_CTRL_ITIMER_EN, hw->hw_addr + REG_MASTER_CTRL);
- /* set Interrupt Clear Timer */
- iowrite16(adapter->ict, hw->hw_addr + REG_CMBDISDMA_TIMER);
- /* set max frame size hw will accept */
- iowrite32(hw->max_frame_size, hw->hw_addr + REG_MTU);
- /* jumbo size & rrd retirement timer */
- value = (((u32) hw->rx_jumbo_th & RXQ_JMBOSZ_TH_MASK)
- << RXQ_JMBOSZ_TH_SHIFT) |
- (((u32) hw->rx_jumbo_lkah & RXQ_JMBO_LKAH_MASK)
- << RXQ_JMBO_LKAH_SHIFT) |
- (((u32) hw->rrd_ret_timer & RXQ_RRD_TIMER_MASK)
- << RXQ_RRD_TIMER_SHIFT);
- iowrite32(value, hw->hw_addr + REG_RXQ_JMBOSZ_RRDTIM);
- /* Flow Control */
- switch (hw->dev_rev) {
- case 0x8001:
- case 0x9001:
- case 0x9002:
- case 0x9003:
- set_flow_ctrl_old(adapter);
- break;
- default:
- set_flow_ctrl_new(hw);
- break;
- }
- /* config TXQ */
- value = (((u32) hw->tpd_burst & TXQ_CTRL_TPD_BURST_NUM_MASK)
- << TXQ_CTRL_TPD_BURST_NUM_SHIFT) |
- (((u32) hw->txf_burst & TXQ_CTRL_TXF_BURST_NUM_MASK)
- << TXQ_CTRL_TXF_BURST_NUM_SHIFT) |
- (((u32) hw->tpd_fetch_th & TXQ_CTRL_TPD_FETCH_TH_MASK)
- << TXQ_CTRL_TPD_FETCH_TH_SHIFT) | TXQ_CTRL_ENH_MODE |
- TXQ_CTRL_EN;
- iowrite32(value, hw->hw_addr + REG_TXQ_CTRL);
- /* min tpd fetch gap & tx jumbo packet size threshold for taskoffload */
- value = (((u32) hw->tx_jumbo_task_th & TX_JUMBO_TASK_TH_MASK)
- << TX_JUMBO_TASK_TH_SHIFT) |
- (((u32) hw->tpd_fetch_gap & TX_TPD_MIN_IPG_MASK)
- << TX_TPD_MIN_IPG_SHIFT);
- iowrite32(value, hw->hw_addr + REG_TX_JUMBO_TASK_TH_TPD_IPG);
- /* config RXQ */
- value = (((u32) hw->rfd_burst & RXQ_CTRL_RFD_BURST_NUM_MASK)
- << RXQ_CTRL_RFD_BURST_NUM_SHIFT) |
- (((u32) hw->rrd_burst & RXQ_CTRL_RRD_BURST_THRESH_MASK)
- << RXQ_CTRL_RRD_BURST_THRESH_SHIFT) |
- (((u32) hw->rfd_fetch_gap & RXQ_CTRL_RFD_PREF_MIN_IPG_MASK)
- << RXQ_CTRL_RFD_PREF_MIN_IPG_SHIFT) | RXQ_CTRL_CUT_THRU_EN |
- RXQ_CTRL_EN;
- iowrite32(value, hw->hw_addr + REG_RXQ_CTRL);
- /* config DMA Engine */
- value = ((((u32) hw->dmar_block) & DMA_CTRL_DMAR_BURST_LEN_MASK)
- << DMA_CTRL_DMAR_BURST_LEN_SHIFT) |
- ((((u32) hw->dmaw_block) & DMA_CTRL_DMAW_BURST_LEN_MASK)
- << DMA_CTRL_DMAW_BURST_LEN_SHIFT) | DMA_CTRL_DMAR_EN |
- DMA_CTRL_DMAW_EN;
- value |= (u32) hw->dma_ord;
- if (atl1_rcb_128 == hw->rcb_value)
- value |= DMA_CTRL_RCB_VALUE;
- iowrite32(value, hw->hw_addr + REG_DMA_CTRL);
- /* config CMB / SMB */
- value = (hw->cmb_tpd > adapter->tpd_ring.count) ?
- hw->cmb_tpd : adapter->tpd_ring.count;
- value <<= 16;
- value |= hw->cmb_rrd;
- iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TH);
- value = hw->cmb_rx_timer | ((u32) hw->cmb_tx_timer << 16);
- iowrite32(value, hw->hw_addr + REG_CMB_WRITE_TIMER);
- iowrite32(hw->smb_timer, hw->hw_addr + REG_SMB_TIMER);
- /* --- enable CMB / SMB */
- value = CSMB_CTRL_CMB_EN | CSMB_CTRL_SMB_EN;
- iowrite32(value, hw->hw_addr + REG_CSMB_CTRL);
- value = ioread32(adapter->hw.hw_addr + REG_ISR);
- if (unlikely((value & ISR_PHY_LINKDOWN) != 0))
- value = 1; /* config failed */
- else
- value = 0;
- /* clear all interrupt status */
- iowrite32(0x3fffffff, adapter->hw.hw_addr + REG_ISR);
- iowrite32(0, adapter->hw.hw_addr + REG_ISR);
- return value;
- }
- /*
- * atl1_pcie_patch - Patch for PCIE module
- */
- static void atl1_pcie_patch(struct atl1_adapter *adapter)
- {
- u32 value;
- /* much vendor magic here */
- value = 0x6500;
- iowrite32(value, adapter->hw.hw_addr + 0x12FC);
- /* pcie flow control mode change */
- value = ioread32(adapter->hw.hw_addr + 0x1008);
- value |= 0x8000;
- iowrite32(value, adapter->hw.hw_addr + 0x1008);
- }
- /*
- * When ACPI resume on some VIA MotherBoard, the Interrupt Disable bit/0x400
- * on PCI Command register is disable.
- * The function enable this bit.
- * Brackett, 2006/03/15
- */
- static void atl1_via_workaround(struct atl1_adapter *adapter)
- {
- unsigned long value;
- value = ioread16(adapter->hw.hw_addr + PCI_COMMAND);
- if (value & PCI_COMMAND_INTX_DISABLE)
- value &= ~PCI_COMMAND_INTX_DISABLE;
- iowrite32(value, adapter->hw.hw_addr + PCI_COMMAND);
- }
- static void atl1_inc_smb(struct atl1_adapter *adapter)
- {
- struct net_device *netdev = adapter->netdev;
- struct stats_msg_block *smb = adapter->smb.smb;
- /* Fill out the OS statistics structure */
- adapter->soft_stats.rx_packets += smb->rx_ok;
- adapter->soft_stats.tx_packets += smb->tx_ok;
- adapter->soft_stats.rx_bytes += smb->rx_byte_cnt;
- adapter->soft_stats.tx_bytes += smb->tx_byte_cnt;
- adapter->soft_stats.multicast += smb->rx_mcast;
- adapter->soft_stats.collisions += (smb->tx_1_col + smb->tx_2_col * 2 +
- smb->tx_late_col + smb->tx_abort_col * adapter->hw.max_retry);
- /* Rx Errors */
- adapter->soft_stats.rx_errors += (smb->rx_frag + smb->rx_fcs_err +
- smb->rx_len_err + smb->rx_sz_ov + smb->rx_rxf_ov +
- smb->rx_rrd_ov + smb->rx_align_err);
- adapter->soft_stats.rx_fifo_errors += smb->rx_rxf_ov;
- adapter->soft_stats.rx_length_errors += smb->rx_len_err;
- adapter->soft_stats.rx_crc_errors += smb->rx_fcs_err;
- adapter->soft_stats.rx_frame_errors += smb->rx_align_err;
- adapter->soft_stats.rx_missed_errors += (smb->rx_rrd_ov +
- smb->rx_rxf_ov);
- adapter->soft_stats.rx_pause += smb->rx_pause;
- adapter->soft_stats.rx_rrd_ov += smb->rx_rrd_ov;
- adapter->soft_stats.rx_trunc += smb->rx_sz_ov;
- /* Tx Errors */
- adapter->soft_stats.tx_errors += (smb->tx_late_col +
- smb->tx_abort_col + smb->tx_underrun + smb->tx_trunc);
- adapter->soft_stats.tx_fifo_errors += smb->tx_underrun;
- adapter->soft_stats.tx_aborted_errors += smb->tx_abort_col;
- adapter->soft_stats.tx_window_errors += smb->tx_late_col;
- adapter->soft_stats.excecol += smb->tx_abort_col;
- adapter->soft_stats.deffer += smb->tx_defer;
- adapter->soft_stats.scc += smb->tx_1_col;
- adapter->soft_stats.mcc += smb->tx_2_col;
- adapter->soft_stats.latecol += smb->tx_late_col;
- adapter->soft_stats.tx_underun += smb->tx_underrun;
- adapter->soft_stats.tx_trunc += smb->tx_trunc;
- adapter->soft_stats.tx_pause += smb->tx_pause;
- netdev->stats.rx_packets = adapter->soft_stats.rx_packets;
- netdev->stats.tx_packets = adapter->soft_stats.tx_packets;
- netdev->stats.rx_bytes = adapter->soft_stats.rx_bytes;
- netdev->stats.tx_bytes = adapter->soft_stats.tx_bytes;
- netdev->stats.multicast = adapter->soft_stats.multicast;
- netdev->stats.collisions = adapter->soft_stats.collisions;
- netdev->stats.rx_errors = adapter->soft_stats.rx_errors;
- netdev->stats.rx_over_errors =
- adapter->soft_stats.rx_missed_errors;
- netdev->stats.rx_length_errors =
- adapter->soft_stats.rx_length_errors;
- netdev->stats.rx_crc_errors = adapter->soft_stats.rx_crc_errors;
- netdev->stats.rx_frame_errors =
- adapter->soft_stats.rx_frame_errors;
- netdev->stats.rx_fifo_errors = adapter->soft_stats.rx_fifo_errors;
- netdev->stats.rx_missed_errors =
- adapter->soft_stats.rx_missed_errors;
- netdev->stats.tx_errors = adapter->soft_stats.tx_errors;
- netdev->stats.tx_fifo_errors = adapter->soft_stats.tx_fifo_errors;
- netdev->stats.tx_aborted_errors =
- adapter->soft_stats.tx_aborted_errors;
- netdev->stats.tx_window_errors =
- adapter->soft_stats.tx_window_errors;
- netdev->stats.tx_carrier_errors =
- adapter->soft_stats.tx_carrier_errors;
- }
- static void atl1_update_mailbox(struct atl1_adapter *adapter)
- {
- unsigned long flags;
- u32 tpd_next_to_use;
- u32 rfd_next_to_use;
- u32 rrd_next_to_clean;
- u32 value;
- spin_lock_irqsave(&adapter->mb_lock, flags);
- tpd_next_to_use = atomic_read(&adapter->tpd_ring.next_to_use);
- rfd_next_to_use = atomic_read(&adapter->rfd_ring.next_to_use);
- rrd_next_to_clean = atomic_read(&adapter->rrd_ring.next_to_clean);
- value = ((rfd_next_to_use & MB_RFD_PROD_INDX_MASK) <<
- MB_RFD_PROD_INDX_SHIFT) |
- ((rrd_next_to_clean & MB_RRD_CONS_INDX_MASK) <<
- MB_RRD_CONS_INDX_SHIFT) |
- ((tpd_next_to_use & MB_TPD_PROD_INDX_MASK) <<
- MB_TPD_PROD_INDX_SHIFT);
- iowrite32(value, adapter->hw.hw_addr + REG_MAILBOX);
- spin_unlock_ir…