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![Alan Cox](/assets/img/avatar_default.png)
Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
1017 lines
30 KiB
C
1017 lines
30 KiB
C
/*
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* Agere Systems Inc.
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* 10/100/1000 Base-T Ethernet Driver for the ET1301 and ET131x series MACs
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*
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* Copyright © 2005 Agere Systems Inc.
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* All rights reserved.
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* http://www.agere.com
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*
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*------------------------------------------------------------------------------
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*
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* et131x_initpci.c - Routines and data used to register the driver with the
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* PCI (and PCI Express) subsystem, as well as basic driver
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* init and startup.
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*
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*------------------------------------------------------------------------------
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*
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* SOFTWARE LICENSE
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*
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* This software is provided subject to the following terms and conditions,
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* which you should read carefully before using the software. Using this
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* software indicates your acceptance of these terms and conditions. If you do
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* not agree with these terms and conditions, do not use the software.
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*
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* Copyright © 2005 Agere Systems Inc.
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* All rights reserved.
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*
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* Redistribution and use in source or binary forms, with or without
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* modifications, are permitted provided that the following conditions are met:
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*
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* . Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following Disclaimer as comments in the code as
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* well as in the documentation and/or other materials provided with the
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* distribution.
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*
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* . Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following Disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* . Neither the name of Agere Systems Inc. nor the names of the contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* Disclaimer
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY
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* USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
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* RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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*/
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#include "et131x_version.h"
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#include "et131x_defs.h"
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/ptrace.h>
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#include <linux/slab.h>
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#include <linux/ctype.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/interrupt.h>
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#include <linux/in.h>
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#include <linux/delay.h>
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#include <linux/io.h>
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#include <linux/bitops.h>
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#include <asm/system.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/if_arp.h>
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#include <linux/ioport.h>
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#include <linux/random.h>
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#include "et1310_phy.h"
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#include "et1310_pm.h"
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#include "et1310_jagcore.h"
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#include "et131x_adapter.h"
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#include "et131x_netdev.h"
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#include "et131x_config.h"
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#include "et131x_isr.h"
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#include "et1310_address_map.h"
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#include "et1310_tx.h"
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#include "et1310_rx.h"
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#include "et1310_mac.h"
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#include "et1310_eeprom.h"
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/* Defines for Parameter Default/Min/Max vaules */
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#define PARM_SPEED_DUPLEX_MIN 0
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#define PARM_SPEED_DUPLEX_MAX 5
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/* Module parameter for disabling NMI
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* et131x_nmi_disable :
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* Disable NMI (0-2) [0]
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* 0 :
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* 1 :
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* 2 :
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*/
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static u32 et131x_nmi_disable; /* 0-2 */
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module_param(et131x_nmi_disable, uint, 0);
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MODULE_PARM_DESC(et131x_nmi_disable, "Disable NMI (0-2) [0]");
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/* Module parameter for manual speed setting
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* Set Link speed and dublex manually (0-5) [0]
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* 1 : 10Mb Half-Duplex
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* 2 : 10Mb Full-Duplex
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* 3 : 100Mb Half-Duplex
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* 4 : 100Mb Full-Duplex
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* 5 : 1000Mb Full-Duplex
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* 0 : Auto Speed Auto Duplex // default
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*/
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static u32 et131x_speed_set;
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module_param(et131x_speed_set, uint, 0);
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MODULE_PARM_DESC(et131x_speed_set,
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"Set Link speed and dublex manually (0-5) [0] \n 1 : 10Mb Half-Duplex \n 2 : 10Mb Full-Duplex \n 3 : 100Mb Half-Duplex \n 4 : 100Mb Full-Duplex \n 5 : 1000Mb Full-Duplex \n 0 : Auto Speed Auto Dublex");
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/**
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* et131x_find_adapter - Find the adapter and get all the assigned resources
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* @adapter: pointer to our private adapter structure
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*
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* Returns 0 on success, errno on failure (as defined in errno.h)
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*/
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int et131x_find_adapter(struct et131x_adapter *adapter, struct pci_dev *pdev)
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{
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int result;
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uint8_t eepromStat;
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uint8_t maxPayload = 0;
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uint8_t read_size_reg;
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u8 rev;
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/* Allow disabling of Non-Maskable Interrupts in I/O space, to
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* support validation.
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*/
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if (adapter->RegistryNMIDisable) {
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uint8_t RegisterVal;
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RegisterVal = inb(ET1310_NMI_DISABLE);
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RegisterVal &= 0xf3;
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if (adapter->RegistryNMIDisable == 2)
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RegisterVal |= 0xc;
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outb(ET1310_NMI_DISABLE, RegisterVal);
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}
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/* We first need to check the EEPROM Status code located at offset
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* 0xB2 of config space
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*/
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result = pci_read_config_byte(pdev, ET1310_PCI_EEPROM_STATUS,
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&eepromStat);
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/* THIS IS A WORKAROUND:
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* I need to call this function twice to get my card in a
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* LG M1 Express Dual running. I tried also a msleep before this
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* function, because I thougth there could be some time condidions
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* but it didn't work. Call the whole function twice also work.
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*/
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result = pci_read_config_byte(pdev, ET1310_PCI_EEPROM_STATUS,
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&eepromStat);
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if (result != PCIBIOS_SUCCESSFUL) {
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dev_err(&pdev->dev, "Could not read PCI config space for "
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"EEPROM Status\n");
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return -EIO;
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}
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/* Determine if the error(s) we care about are present. If they are
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* present, we need to fail.
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*/
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if (eepromStat & 0x4C) {
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result = pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
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if (result != PCIBIOS_SUCCESSFUL) {
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dev_err(&pdev->dev,
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"Could not read PCI config space for "
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"Revision ID\n");
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return -EIO;
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} else if (rev == 0x01) {
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int32_t nLoop;
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uint8_t temp[4] = { 0xFE, 0x13, 0x10, 0xFF };
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/* Re-write the first 4 bytes if we have an eeprom
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* present and the revision id is 1, this fixes the
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* corruption seen with 1310 B Silicon
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*/
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for (nLoop = 0; nLoop < 3; nLoop++) {
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EepromWriteByte(adapter, nLoop, temp[nLoop]);
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}
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}
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dev_err(&pdev->dev, "Fatal EEPROM Status Error - 0x%04x\n", eepromStat);
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/* This error could mean that there was an error reading the
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* eeprom or that the eeprom doesn't exist. We will treat
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* each case the same and not try to gather additional
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* information that normally would come from the eeprom, like
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* MAC Address
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*/
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adapter->has_eeprom = 0;
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return -EIO;
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} else
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adapter->has_eeprom = 1;
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/* Read the EEPROM for information regarding LED behavior. Refer to
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* ET1310_phy.c, et131x_xcvr_init(), for its use.
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*/
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EepromReadByte(adapter, 0x70, &adapter->eepromData[0]);
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EepromReadByte(adapter, 0x71, &adapter->eepromData[1]);
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if (adapter->eepromData[0] != 0xcd)
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/* Disable all optional features */
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adapter->eepromData[1] = 0x00;
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/* Let's set up the PORT LOGIC Register. First we need to know what
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* the max_payload_size is
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*/
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result = pci_read_config_byte(pdev, ET1310_PCI_MAX_PYLD, &maxPayload);
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if (result != PCIBIOS_SUCCESSFUL) {
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dev_err(&pdev->dev,
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"Could not read PCI config space for Max Payload Size\n");
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return -EIO;
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}
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/* Program the Ack/Nak latency and replay timers */
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maxPayload &= 0x07; /* Only the lower 3 bits are valid */
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if (maxPayload < 2) {
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const uint16_t AckNak[2] = { 0x76, 0xD0 };
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const uint16_t Replay[2] = { 0x1E0, 0x2ED };
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result = pci_write_config_word(pdev, ET1310_PCI_ACK_NACK,
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AckNak[maxPayload]);
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if (result != PCIBIOS_SUCCESSFUL) {
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dev_err(&pdev->dev,
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"Could not write PCI config space for ACK/NAK\n");
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return -EIO;
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}
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result = pci_write_config_word(pdev, ET1310_PCI_REPLAY,
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Replay[maxPayload]);
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if (result != PCIBIOS_SUCCESSFUL) {
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dev_err(&pdev->dev,
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"Could not write PCI config space for Replay Timer\n");
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return -EIO;
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}
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}
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/* l0s and l1 latency timers. We are using default values.
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* Representing 001 for L0s and 010 for L1
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*/
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result = pci_write_config_byte(pdev, ET1310_PCI_L0L1LATENCY, 0x11);
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if (result != PCIBIOS_SUCCESSFUL) {
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dev_err(&pdev->dev,
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"Could not write PCI config space for Latency Timers\n");
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return -EIO;
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}
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/* Change the max read size to 2k */
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result = pci_read_config_byte(pdev, 0x51, &read_size_reg);
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if (result != PCIBIOS_SUCCESSFUL) {
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dev_err(&pdev->dev,
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"Could not read PCI config space for Max read size\n");
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return -EIO;
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}
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read_size_reg &= 0x8f;
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read_size_reg |= 0x40;
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result = pci_write_config_byte(pdev, 0x51, read_size_reg);
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if (result != PCIBIOS_SUCCESSFUL) {
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dev_err(&pdev->dev,
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"Could not write PCI config space for Max read size\n");
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return -EIO;
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}
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/* Get MAC address from config space if an eeprom exists, otherwise
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* the MAC address there will not be valid
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*/
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if (adapter->has_eeprom) {
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int i;
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for (i = 0; i < ETH_ALEN; i++) {
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result = pci_read_config_byte(
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pdev, ET1310_PCI_MAC_ADDRESS + i,
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adapter->PermanentAddress + i);
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if (result != PCIBIOS_SUCCESSFUL) {
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dev_err(&pdev->dev, ";Could not read PCI config space for MAC address\n");
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return -EIO;
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}
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}
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}
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return 0;
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}
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/**
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* et131x_error_timer_handler
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* @data: timer-specific variable; here a pointer to our adapter structure
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*
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* The routine called when the error timer expires, to track the number of
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* recurring errors.
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*/
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void et131x_error_timer_handler(unsigned long data)
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{
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struct et131x_adapter *etdev = (struct et131x_adapter *) data;
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u32 pm_csr;
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pm_csr = readl(&etdev->regs->global.pm_csr);
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if ((pm_csr & ET_PM_PHY_SW_COMA) == 0)
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UpdateMacStatHostCounters(etdev);
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else
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dev_err(&etdev->pdev->dev,
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"No interrupts, in PHY coma, pm_csr = 0x%x\n", pm_csr);
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if (!etdev->Bmsr.bits.link_status &&
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etdev->RegistryPhyComa &&
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etdev->PoMgmt.TransPhyComaModeOnBoot < 11) {
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etdev->PoMgmt.TransPhyComaModeOnBoot++;
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}
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if (etdev->PoMgmt.TransPhyComaModeOnBoot == 10) {
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if (!etdev->Bmsr.bits.link_status
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&& etdev->RegistryPhyComa) {
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if ((pm_csr & ET_PM_PHY_SW_COMA) == 0) {
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/* NOTE - This was originally a 'sync with
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* interrupt'. How to do that under Linux?
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*/
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et131x_enable_interrupts(etdev);
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EnablePhyComa(etdev);
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}
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}
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}
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/* This is a periodic timer, so reschedule */
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mod_timer(&etdev->ErrorTimer, jiffies +
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TX_ERROR_PERIOD * HZ / 1000);
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}
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/**
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* et131x_link_detection_handler
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*
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* Timer function for link up at driver load time
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*/
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void et131x_link_detection_handler(unsigned long data)
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{
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struct et131x_adapter *etdev = (struct et131x_adapter *) data;
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unsigned long flags;
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if (etdev->MediaState == 0) {
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spin_lock_irqsave(&etdev->Lock, flags);
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etdev->MediaState = NETIF_STATUS_MEDIA_DISCONNECT;
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etdev->Flags &= ~fMP_ADAPTER_LINK_DETECTION;
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spin_unlock_irqrestore(&etdev->Lock, flags);
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netif_carrier_off(etdev->netdev);
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}
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}
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/**
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* et131x_configure_global_regs - configure JAGCore global regs
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* @etdev: pointer to our adapter structure
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*
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* Used to configure the global registers on the JAGCore
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*/
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void ConfigGlobalRegs(struct et131x_adapter *etdev)
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{
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struct _GLOBAL_t __iomem *regs = &etdev->regs->global;
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if (etdev->RegistryPhyLoopbk == false) {
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if (etdev->RegistryJumboPacket < 2048) {
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/* Tx / RxDMA and Tx/Rx MAC interfaces have a 1k word
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* block of RAM that the driver can split between Tx
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* and Rx as it desires. Our default is to split it
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* 50/50:
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*/
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writel(0, ®s->rxq_start_addr);
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writel(PARM_RX_MEM_END_DEF, ®s->rxq_end_addr);
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writel(PARM_RX_MEM_END_DEF + 1, ®s->txq_start_addr);
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writel(INTERNAL_MEM_SIZE - 1, ®s->txq_end_addr);
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} else if (etdev->RegistryJumboPacket < 8192) {
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/* For jumbo packets > 2k but < 8k, split 50-50. */
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writel(0, ®s->rxq_start_addr);
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writel(INTERNAL_MEM_RX_OFFSET, ®s->rxq_end_addr);
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writel(INTERNAL_MEM_RX_OFFSET + 1, ®s->txq_start_addr);
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writel(INTERNAL_MEM_SIZE - 1, ®s->txq_end_addr);
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} else {
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/* 9216 is the only packet size greater than 8k that
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* is available. The Tx buffer has to be big enough
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* for one whole packet on the Tx side. We'll make
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* the Tx 9408, and give the rest to Rx
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*/
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writel(0x0000, ®s->rxq_start_addr);
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writel(0x01b3, ®s->rxq_end_addr);
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writel(0x01b4, ®s->txq_start_addr);
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writel(INTERNAL_MEM_SIZE - 1,®s->txq_end_addr);
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}
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/* Initialize the loopback register. Disable all loopbacks. */
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writel(0, ®s->loopback);
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} else {
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/* For PHY Line loopback, the memory is configured as if Tx
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* and Rx both have all the memory. This is because the
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* RxMAC will write data into the space, and the TxMAC will
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* read it out.
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*/
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writel(0, ®s->rxq_start_addr);
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writel(INTERNAL_MEM_SIZE - 1, ®s->rxq_end_addr);
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writel(0, ®s->txq_start_addr);
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writel(INTERNAL_MEM_SIZE - 1, ®s->txq_end_addr);
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/* Initialize the loopback register (MAC loopback). */
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writel(ET_LOOP_MAC, ®s->loopback);
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}
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/* MSI Register */
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writel(0, ®s->msi_config);
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/* By default, disable the watchdog timer. It will be enabled when
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* a packet is queued.
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*/
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writel(0, ®s->watchdog_timer);
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}
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/**
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* et131x_adapter_setup - Set the adapter up as per cassini+ documentation
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* @adapter: pointer to our private adapter structure
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*
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* Returns 0 on success, errno on failure (as defined in errno.h)
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*/
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int et131x_adapter_setup(struct et131x_adapter *etdev)
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{
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int status = 0;
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/* Configure the JAGCore */
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ConfigGlobalRegs(etdev);
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ConfigMACRegs1(etdev);
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/* Configure the MMC registers */
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/* All we need to do is initialize the Memory Control Register */
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writel(ET_MMC_ENABLE, &etdev->regs->mmc.mmc_ctrl);
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ConfigRxMacRegs(etdev);
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ConfigTxMacRegs(etdev);
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ConfigRxDmaRegs(etdev);
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ConfigTxDmaRegs(etdev);
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ConfigMacStatRegs(etdev);
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/* Move the following code to Timer function?? */
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status = et131x_xcvr_find(etdev);
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if (status != 0)
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dev_warn(&etdev->pdev->dev, "Could not find the xcvr\n");
|
|
|
|
/* Prepare the TRUEPHY library. */
|
|
ET1310_PhyInit(etdev);
|
|
|
|
/* Reset the phy now so changes take place */
|
|
ET1310_PhyReset(etdev);
|
|
|
|
/* Power down PHY */
|
|
ET1310_PhyPowerDown(etdev, 1);
|
|
|
|
/*
|
|
* We need to turn off 1000 base half dulplex, the mac does not
|
|
* support it. For the 10/100 part, turn off all gig advertisement
|
|
*/
|
|
if (etdev->pdev->device != ET131X_PCI_DEVICE_ID_FAST)
|
|
ET1310_PhyAdvertise1000BaseT(etdev, TRUEPHY_ADV_DUPLEX_FULL);
|
|
else
|
|
ET1310_PhyAdvertise1000BaseT(etdev, TRUEPHY_ADV_DUPLEX_NONE);
|
|
|
|
/* Power up PHY */
|
|
ET1310_PhyPowerDown(etdev, 0);
|
|
|
|
et131x_setphy_normal(etdev);
|
|
; return status;
|
|
}
|
|
|
|
/**
|
|
* et131x_setup_hardware_properties - set up the MAC Address on the ET1310
|
|
* @adapter: pointer to our private adapter structure
|
|
*/
|
|
void et131x_setup_hardware_properties(struct et131x_adapter *adapter)
|
|
{
|
|
/* If have our default mac from registry and no mac address from
|
|
* EEPROM then we need to generate the last octet and set it on the
|
|
* device
|
|
*/
|
|
if (adapter->PermanentAddress[0] == 0x00 &&
|
|
adapter->PermanentAddress[1] == 0x00 &&
|
|
adapter->PermanentAddress[2] == 0x00 &&
|
|
adapter->PermanentAddress[3] == 0x00 &&
|
|
adapter->PermanentAddress[4] == 0x00 &&
|
|
adapter->PermanentAddress[5] == 0x00) {
|
|
/*
|
|
* We need to randomly generate the last octet so we
|
|
* decrease our chances of setting the mac address to
|
|
* same as another one of our cards in the system
|
|
*/
|
|
get_random_bytes(&adapter->CurrentAddress[5], 1);
|
|
/*
|
|
* We have the default value in the register we are
|
|
* working with so we need to copy the current
|
|
* address into the permanent address
|
|
*/
|
|
memcpy(adapter->PermanentAddress,
|
|
adapter->CurrentAddress, ETH_ALEN);
|
|
} else {
|
|
/* We do not have an override address, so set the
|
|
* current address to the permanent address and add
|
|
* it to the device
|
|
*/
|
|
memcpy(adapter->CurrentAddress,
|
|
adapter->PermanentAddress, ETH_ALEN);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* et131x_soft_reset - Issue a soft reset to the hardware, complete for ET1310
|
|
* @adapter: pointer to our private adapter structure
|
|
*/
|
|
void et131x_soft_reset(struct et131x_adapter *adapter)
|
|
{
|
|
/* Disable MAC Core */
|
|
writel(0xc00f0000, &adapter->regs->mac.cfg1.value);
|
|
|
|
/* Set everything to a reset value */
|
|
writel(0x7F, &adapter->regs->global.sw_reset);
|
|
writel(0x000f0000, &adapter->regs->mac.cfg1.value);
|
|
writel(0x00000000, &adapter->regs->mac.cfg1.value);
|
|
}
|
|
|
|
/**
|
|
* et131x_align_allocated_memory - Align allocated memory on a given boundary
|
|
* @adapter: pointer to our adapter structure
|
|
* @phys_addr: pointer to Physical address
|
|
* @offset: pointer to the offset variable
|
|
* @mask: correct mask
|
|
*/
|
|
void et131x_align_allocated_memory(struct et131x_adapter *adapter,
|
|
uint64_t *phys_addr,
|
|
uint64_t *offset, uint64_t mask)
|
|
{
|
|
uint64_t new_addr;
|
|
|
|
*offset = 0;
|
|
|
|
new_addr = *phys_addr & ~mask;
|
|
|
|
if (new_addr != *phys_addr) {
|
|
/* Move to next aligned block */
|
|
new_addr += mask + 1;
|
|
/* Return offset for adjusting virt addr */
|
|
*offset = new_addr - *phys_addr;
|
|
/* Return new physical address */
|
|
*phys_addr = new_addr;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* et131x_adapter_memory_alloc
|
|
* @adapter: pointer to our private adapter structure
|
|
*
|
|
* Returns 0 on success, errno on failure (as defined in errno.h).
|
|
*
|
|
* Allocate all the memory blocks for send, receive and others.
|
|
*/
|
|
int et131x_adapter_memory_alloc(struct et131x_adapter *adapter)
|
|
{
|
|
int status = 0;
|
|
|
|
do {
|
|
/* Allocate memory for the Tx Ring */
|
|
status = et131x_tx_dma_memory_alloc(adapter);
|
|
if (status != 0) {
|
|
dev_err(&adapter->pdev->dev,
|
|
"et131x_tx_dma_memory_alloc FAILED\n");
|
|
break;
|
|
}
|
|
|
|
/* Receive buffer memory allocation */
|
|
status = et131x_rx_dma_memory_alloc(adapter);
|
|
if (status != 0) {
|
|
dev_err(&adapter->pdev->dev,
|
|
"et131x_rx_dma_memory_alloc FAILED\n");
|
|
et131x_tx_dma_memory_free(adapter);
|
|
break;
|
|
}
|
|
|
|
/* Init receive data structures */
|
|
status = et131x_init_recv(adapter);
|
|
if (status != 0) {
|
|
dev_err(&adapter->pdev->dev,
|
|
"et131x_init_recv FAILED\n");
|
|
et131x_tx_dma_memory_free(adapter);
|
|
et131x_rx_dma_memory_free(adapter);
|
|
break;
|
|
}
|
|
} while (0);
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* et131x_adapter_memory_free - Free all memory allocated for use by Tx & Rx
|
|
* @adapter: pointer to our private adapter structure
|
|
*/
|
|
void et131x_adapter_memory_free(struct et131x_adapter *adapter)
|
|
{
|
|
/* Free DMA memory */
|
|
et131x_tx_dma_memory_free(adapter);
|
|
et131x_rx_dma_memory_free(adapter);
|
|
}
|
|
|
|
/**
|
|
* et131x_config_parse
|
|
* @etdev: pointer to the private adapter struct
|
|
*
|
|
* Parses a configuration from some location (module parameters, for example)
|
|
* into the private adapter struct. This really has no sensible analogy in
|
|
* Linux as sysfs parameters are dynamic. Several things that were hee could
|
|
* go into sysfs, but other stuff like speed handling is part of the mii
|
|
* interfaces/ethtool.
|
|
*/
|
|
void et131x_config_parse(struct et131x_adapter *etdev)
|
|
{
|
|
static const u8 default_mac[] = { 0x00, 0x05, 0x3d, 0x00, 0x02, 0x00 };
|
|
static const u8 duplex[] = { 0, 1, 2, 1, 2, 2 };
|
|
static const u16 speed[] = { 0, 10, 10, 100, 100, 1000 };
|
|
|
|
if (et131x_speed_set)
|
|
dev_info(&etdev->pdev->dev,
|
|
"Speed set manually to : %d \n", et131x_speed_set);
|
|
|
|
etdev->SpeedDuplex = et131x_speed_set;
|
|
etdev->RegistryJumboPacket = 1514; /* 1514-9216 */
|
|
|
|
etdev->RegistryNMIDisable = et131x_nmi_disable;
|
|
|
|
/* Set the MAC address to a default */
|
|
memcpy(etdev->CurrentAddress, default_mac, ETH_ALEN);
|
|
|
|
/* Decode SpeedDuplex
|
|
*
|
|
* Set up as if we are auto negotiating always and then change if we
|
|
* go into force mode
|
|
*
|
|
* If we are the 10/100 device, and gigabit is somehow requested then
|
|
* knock it down to 100 full.
|
|
*/
|
|
if (etdev->pdev->device == ET131X_PCI_DEVICE_ID_FAST &&
|
|
etdev->SpeedDuplex == 5)
|
|
etdev->SpeedDuplex = 4;
|
|
|
|
etdev->AiForceSpeed = speed[etdev->SpeedDuplex];
|
|
etdev->AiForceDpx = duplex[etdev->SpeedDuplex]; /* Auto FDX */
|
|
}
|
|
|
|
|
|
/**
|
|
* et131x_pci_remove
|
|
* @pdev: a pointer to the device's pci_dev structure
|
|
*
|
|
* Registered in the pci_driver structure, this function is called when the
|
|
* PCI subsystem detects that a PCI device which matches the information
|
|
* contained in the pci_device_id table has been removed.
|
|
*/
|
|
|
|
void __devexit et131x_pci_remove(struct pci_dev *pdev)
|
|
{
|
|
struct net_device *netdev;
|
|
struct et131x_adapter *adapter;
|
|
|
|
/* Retrieve the net_device pointer from the pci_dev struct, as well
|
|
* as the private adapter struct
|
|
*/
|
|
netdev = (struct net_device *) pci_get_drvdata(pdev);
|
|
adapter = netdev_priv(netdev);
|
|
|
|
/* Perform device cleanup */
|
|
unregister_netdev(netdev);
|
|
et131x_adapter_memory_free(adapter);
|
|
iounmap(adapter->regs);
|
|
pci_dev_put(adapter->pdev);
|
|
free_netdev(netdev);
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
}
|
|
|
|
|
|
/**
|
|
* et131x_pci_setup - Perform device initialization
|
|
* @pdev: a pointer to the device's pci_dev structure
|
|
* @ent: this device's entry in the pci_device_id table
|
|
*
|
|
* Returns 0 on success, errno on failure (as defined in errno.h)
|
|
*
|
|
* Registered in the pci_driver structure, this function is called when the
|
|
* PCI subsystem finds a new PCI device which matches the information
|
|
* contained in the pci_device_id table. This routine is the equivalent to
|
|
* a device insertion routine.
|
|
*/
|
|
|
|
int __devinit et131x_pci_setup(struct pci_dev *pdev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
int result = 0;
|
|
int pm_cap;
|
|
bool pci_using_dac;
|
|
struct net_device *netdev = NULL;
|
|
struct et131x_adapter *adapter = NULL;
|
|
|
|
/* Enable the device via the PCI subsystem */
|
|
result = pci_enable_device(pdev);
|
|
if (result != 0) {
|
|
dev_err(&adapter->pdev->dev,
|
|
"pci_enable_device() failed\n");
|
|
goto out;
|
|
}
|
|
|
|
/* Perform some basic PCI checks */
|
|
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
|
|
dev_err(&adapter->pdev->dev,
|
|
"Can't find PCI device's base address\n");
|
|
result = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
result = pci_request_regions(pdev, DRIVER_NAME);
|
|
if (result != 0) {
|
|
dev_err(&adapter->pdev->dev,
|
|
"Can't get PCI resources\n");
|
|
goto err_disable;
|
|
}
|
|
|
|
/* Enable PCI bus mastering */
|
|
pci_set_master(pdev);
|
|
|
|
/* Query PCI for Power Mgmt Capabilities
|
|
*
|
|
* NOTE: Now reading PowerMgmt in another location; is this still
|
|
* needed?
|
|
*/
|
|
pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
|
|
if (pm_cap == 0) {
|
|
dev_err(&adapter->pdev->dev,
|
|
"Cannot find Power Management capabilities\n");
|
|
result = -EIO;
|
|
goto err_release_res;
|
|
}
|
|
|
|
/* Check the DMA addressing support of this device */
|
|
if (!pci_set_dma_mask(pdev, 0xffffffffffffffffULL)) {
|
|
pci_using_dac = true;
|
|
|
|
result =
|
|
pci_set_consistent_dma_mask(pdev, 0xffffffffffffffffULL);
|
|
if (result != 0) {
|
|
dev_err(&pdev->dev,
|
|
"Unable to obtain 64 bit DMA for consistent allocations\n");
|
|
goto err_release_res;
|
|
}
|
|
} else if (!pci_set_dma_mask(pdev, 0xffffffffULL)) {
|
|
pci_using_dac = false;
|
|
} else {
|
|
dev_err(&adapter->pdev->dev,
|
|
"No usable DMA addressing method\n");
|
|
result = -EIO;
|
|
goto err_release_res;
|
|
}
|
|
|
|
/* Allocate netdev and private adapter structs */
|
|
netdev = et131x_device_alloc();
|
|
if (netdev == NULL) {
|
|
dev_err(&adapter->pdev->dev,
|
|
"Couldn't alloc netdev struct\n");
|
|
result = -ENOMEM;
|
|
goto err_release_res;
|
|
}
|
|
|
|
/* Setup the fundamental net_device and private adapter structure elements */
|
|
SET_NETDEV_DEV(netdev, &pdev->dev);
|
|
/*
|
|
if (pci_using_dac) {
|
|
netdev->features |= NETIF_F_HIGHDMA;
|
|
}
|
|
*/
|
|
|
|
/*
|
|
* NOTE - Turn this on when we're ready to deal with SG-DMA
|
|
*
|
|
* NOTE: According to "Linux Device Drivers", 3rd ed, Rubini et al,
|
|
* if checksumming is not performed in HW, then the kernel will not
|
|
* use SG.
|
|
* From pp 510-511:
|
|
*
|
|
* "Note that the kernel does not perform scatter/gather I/O to your
|
|
* device if it does not also provide some form of checksumming as
|
|
* well. The reason is that, if the kernel has to make a pass over a
|
|
* fragmented ("nonlinear") packet to calculate the checksum, it
|
|
* might as well copy the data and coalesce the packet at the same
|
|
* time."
|
|
*
|
|
* This has been verified by setting the flags below and still not
|
|
* receiving a scattered buffer from the network stack, so leave it
|
|
* off until checksums are calculated in HW.
|
|
*/
|
|
/* netdev->features |= NETIF_F_SG; */
|
|
/* netdev->features |= NETIF_F_NO_CSUM; */
|
|
/* netdev->features |= NETIF_F_LLTX; */
|
|
|
|
/* Allocate private adapter struct and copy in relevant information */
|
|
adapter = netdev_priv(netdev);
|
|
adapter->pdev = pci_dev_get(pdev);
|
|
adapter->netdev = netdev;
|
|
|
|
/* Do the same for the netdev struct */
|
|
netdev->irq = pdev->irq;
|
|
netdev->base_addr = pdev->resource[0].start;
|
|
|
|
/* Initialize spinlocks here */
|
|
spin_lock_init(&adapter->Lock);
|
|
spin_lock_init(&adapter->TCBSendQLock);
|
|
spin_lock_init(&adapter->TCBReadyQLock);
|
|
spin_lock_init(&adapter->SendHWLock);
|
|
spin_lock_init(&adapter->SendWaitLock);
|
|
spin_lock_init(&adapter->RcvLock);
|
|
spin_lock_init(&adapter->RcvPendLock);
|
|
spin_lock_init(&adapter->FbrLock);
|
|
spin_lock_init(&adapter->PHYLock);
|
|
|
|
/* Parse configuration parameters into the private adapter struct */
|
|
et131x_config_parse(adapter);
|
|
|
|
/* Find the physical adapter
|
|
*
|
|
* NOTE: This is the equivalent of the MpFindAdapter() routine; can we
|
|
* lump it's init with the device specific init below into a
|
|
* single init function?
|
|
*/
|
|
/* while (et131x_find_adapter(adapter, pdev) != 0); */
|
|
et131x_find_adapter(adapter, pdev);
|
|
|
|
/* Map the bus-relative registers to system virtual memory */
|
|
|
|
adapter->regs = ioremap_nocache(pci_resource_start(pdev, 0),
|
|
pci_resource_len(pdev, 0));
|
|
if (adapter->regs == NULL) {
|
|
dev_err(&pdev->dev, "Cannot map device registers\n");
|
|
result = -ENOMEM;
|
|
goto err_free_dev;
|
|
}
|
|
|
|
/* Perform device-specific initialization here (See code below) */
|
|
|
|
/* If Phy COMA mode was enabled when we went down, disable it here. */
|
|
writel(ET_PMCSR_INIT, &adapter->regs->global.pm_csr);
|
|
|
|
/* Issue a global reset to the et1310 */
|
|
et131x_soft_reset(adapter);
|
|
|
|
/* Disable all interrupts (paranoid) */
|
|
et131x_disable_interrupts(adapter);
|
|
|
|
/* Allocate DMA memory */
|
|
result = et131x_adapter_memory_alloc(adapter);
|
|
if (result != 0) {
|
|
dev_err(&pdev->dev, "Could not alloc adapater memory (DMA)\n");
|
|
goto err_iounmap;
|
|
}
|
|
|
|
/* Init send data structures */
|
|
et131x_init_send(adapter);
|
|
|
|
/* Register the interrupt
|
|
*
|
|
* NOTE - This is being done in the open routine, where most other
|
|
* Linux drivers setup IRQ handlers. Make sure device
|
|
* interrupts are not turned on before the IRQ is registered!!
|
|
*
|
|
* What we will do here is setup the task structure for the
|
|
* ISR's deferred handler
|
|
*/
|
|
INIT_WORK(&adapter->task, et131x_isr_handler);
|
|
|
|
/* Determine MAC Address, and copy into the net_device struct */
|
|
et131x_setup_hardware_properties(adapter);
|
|
|
|
memcpy(netdev->dev_addr, adapter->CurrentAddress, ETH_ALEN);
|
|
|
|
/* Setup et1310 as per the documentation */
|
|
et131x_adapter_setup(adapter);
|
|
|
|
/* Create a timer to count errors received by the NIC */
|
|
init_timer(&adapter->ErrorTimer);
|
|
|
|
adapter->ErrorTimer.expires = jiffies + TX_ERROR_PERIOD * HZ / 1000;
|
|
adapter->ErrorTimer.function = et131x_error_timer_handler;
|
|
adapter->ErrorTimer.data = (unsigned long)adapter;
|
|
|
|
/* Initialize link state */
|
|
et131x_link_detection_handler((unsigned long)adapter);
|
|
|
|
/* Intialize variable for counting how long we do not have
|
|
link status */
|
|
adapter->PoMgmt.TransPhyComaModeOnBoot = 0;
|
|
|
|
/* We can enable interrupts now
|
|
*
|
|
* NOTE - Because registration of interrupt handler is done in the
|
|
* device's open(), defer enabling device interrupts to that
|
|
* point
|
|
*/
|
|
|
|
/* Register the net_device struct with the Linux network layer */
|
|
result = register_netdev(netdev);
|
|
if (result != 0) {
|
|
dev_err(&pdev->dev, "register_netdev() failed\n");
|
|
goto err_mem_free;
|
|
}
|
|
|
|
/* Register the net_device struct with the PCI subsystem. Save a copy
|
|
* of the PCI config space for this device now that the device has
|
|
* been initialized, just in case it needs to be quickly restored.
|
|
*/
|
|
pci_set_drvdata(pdev, netdev);
|
|
|
|
pci_save_state(adapter->pdev);
|
|
|
|
out:
|
|
return result;
|
|
|
|
err_mem_free:
|
|
et131x_adapter_memory_free(adapter);
|
|
err_iounmap:
|
|
iounmap(adapter->regs);
|
|
err_free_dev:
|
|
pci_dev_put(pdev);
|
|
free_netdev(netdev);
|
|
err_release_res:
|
|
pci_release_regions(pdev);
|
|
err_disable:
|
|
pci_disable_device(pdev);
|
|
goto out;
|
|
}
|
|
|
|
static struct pci_device_id et131x_pci_table[] __devinitdata = {
|
|
{ET131X_PCI_VENDOR_ID, ET131X_PCI_DEVICE_ID_GIG, PCI_ANY_ID,
|
|
PCI_ANY_ID, 0, 0, 0UL},
|
|
{ET131X_PCI_VENDOR_ID, ET131X_PCI_DEVICE_ID_FAST, PCI_ANY_ID,
|
|
PCI_ANY_ID, 0, 0, 0UL},
|
|
{0,}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, et131x_pci_table);
|
|
|
|
static struct pci_driver et131x_driver = {
|
|
.name = DRIVER_NAME,
|
|
.id_table = et131x_pci_table,
|
|
.probe = et131x_pci_setup,
|
|
.remove = __devexit_p(et131x_pci_remove),
|
|
.suspend = NULL, /* et131x_pci_suspend */
|
|
.resume = NULL, /* et131x_pci_resume */
|
|
};
|
|
|
|
|
|
/**
|
|
* et131x_init_module - The "main" entry point called on driver initialization
|
|
*
|
|
* Returns 0 on success, errno on failure (as defined in errno.h)
|
|
*/
|
|
static int et131x_init_module(void)
|
|
{
|
|
if (et131x_speed_set < PARM_SPEED_DUPLEX_MIN ||
|
|
et131x_speed_set > PARM_SPEED_DUPLEX_MAX) {
|
|
printk(KERN_WARNING "et131x: invalid speed setting ignored.\n");
|
|
et131x_speed_set = 0;
|
|
}
|
|
return pci_register_driver(&et131x_driver);
|
|
}
|
|
|
|
/**
|
|
* et131x_cleanup_module - The entry point called on driver cleanup
|
|
*/
|
|
static void et131x_cleanup_module(void)
|
|
{
|
|
pci_unregister_driver(&et131x_driver);
|
|
}
|
|
|
|
module_init(et131x_init_module);
|
|
module_exit(et131x_cleanup_module);
|
|
|
|
|
|
/* Modinfo parameters (filled out using defines from et131x_version.h) */
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_INFO);
|
|
MODULE_LICENSE(DRIVER_LICENSE);
|