/*
* Agere Systems Inc.
* 10/100/1000 Base-T Ethernet Driver for the ET1301 and ET131x series MACs
*
* Copyright © 2005 Agere Systems Inc.
* All rights reserved.
* http://www.agere.com
*
*------------------------------------------------------------------------------
*
* et131x_initpci.c - Routines and data used to register the driver with the
* PCI (and PCI Express) subsystem, as well as basic driver
* init and startup.
*
*------------------------------------------------------------------------------
*
* SOFTWARE LICENSE
*
* This software is provided subject to the following terms and conditions,
* which you should read carefully before using the software. Using this
* software indicates your acceptance of these terms and conditions. If you do
* not agree with these terms and conditions, do not use the software.
*
* Copyright © 2005 Agere Systems Inc.
* All rights reserved.
*
* Redistribution and use in source or binary forms, with or without
* modifications, are permitted provided that the following conditions are met:
*
* . Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following Disclaimer as comments in the code as
* well as in the documentation and/or other materials provided with the
* distribution.
*
* . Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following Disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* . Neither the name of Agere Systems Inc. nor the names of the contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* Disclaimer
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY
* USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
* RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*/
#include "et131x_version.h"
#include "et131x_defs.h"
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <linux/ctype.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/in.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/bitops.h>
#include <asm/system.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <linux/ioport.h>
#include <linux/random.h>
#include "et1310_phy.h"
#include "et131x_adapter.h"
#include "et1310_address_map.h"
#include "et1310_tx.h"
#include "et1310_rx.h"
#include "et131x.h"
#define INTERNAL_MEM_SIZE 0x400 /* 1024 of internal memory */
#define INTERNAL_MEM_RX_OFFSET 0x1FF /* 50% Tx, 50% Rx */
/* Defines for Parameter Default/Min/Max vaules */
#define PARM_SPEED_DUPLEX_MIN 0
#define PARM_SPEED_DUPLEX_MAX 5
/* Module parameter for manual speed setting
* Set Link speed and dublex manually (0-5) [0]
* 1 : 10Mb Half-Duplex
* 2 : 10Mb Full-Duplex
* 3 : 100Mb Half-Duplex
* 4 : 100Mb Full-Duplex
* 5 : 1000Mb Full-Duplex
* 0 : Auto Speed Auto Duplex // default
*/
static u32 et131x_speed_set;
module_param(et131x_speed_set, uint, 0);
MODULE_PARM_DESC(et131x_speed_set,
"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");
/**
* et131x_hwaddr_init - set up the MAC Address on the ET1310
* @adapter: pointer to our private adapter structure
*/
void et131x_hwaddr_init(struct et131x_adapter *adapter)
{
/* If have our default mac from init and no mac address from
* EEPROM then we need to generate the last octet and set it on the
* device
*/
if (adapter->rom_addr[0] == 0x00 &&
adapter->rom_addr[1] == 0x00 &&
adapter->rom_addr[2] == 0x00 &&
adapter->rom_addr[3] == 0x00 &&
adapter->rom_addr[4] == 0x00 &&
adapter->rom_addr[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->addr[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->rom_addr,
adapter->addr, 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->addr,
adapter->rom_addr, ETH_ALEN);
}
}
/**
* et131x_pci_init - initial PCI setup
* @adapter: pointer to our private adapter structure
* @pdev: our PCI device
*
* Perform the initial setup of PCI registers and if possible initialise
* the MAC address. At this point the I/O registers have yet to be mapped
*/
static int et131x_pci_init(struct et131x_adapter *adapter,
struct pci_dev *pdev)
{
int i;
u8 max_payload;
u8 read_size_reg;
if (et131x_init_eeprom(adapter) < 0)
return -EIO;
/* Let's set up the PORT LOGIC Register. First we need to know what
* the max_payload_size is
*/
if (pci_read_config_byte(pdev, ET1310_PCI_MAX_PYLD, &max_payload)) {
dev_err(&pdev->dev,
"Could not read PCI config space for Max Payload Size\n");
return -EIO;
}
/* Program the Ack/Nak latency and replay timers */
max_payload &= 0x07; /* Only the lower 3 bits are valid */
if (max_payload < 2) {
static const u16 acknak[2] = { 0x76, 0xD0 };
static const u16 replay[2] = { 0x1E0, 0x2ED };
if (pci_write_config_word(pdev, ET1310_PCI_ACK_NACK,
acknak[max_payload])) {
dev_err(&pdev->dev,
"Could not write PCI config space for ACK/NAK\n");
return -EIO;
}
if (pci_write_config_word(pdev, ET1310_PCI_REPLAY,
replay[max_payload])) {
dev_err(&pdev->dev,
"Could not write PCI config space for Replay Timer\n");
return -EIO;
}
}
/* l0s and l1 latency timers. We are using default values.
* Representing 001 for L0s and 010 for L1
*/
if (pci_write_config_byte(pdev, ET1310_PCI_L0L1LATENCY, 0x11)) {
dev_err(&pdev->dev,
"Could not write PCI config space for Latency Timers\n");
return -EIO;
}
/* Change the max read size to 2k */
if (pci_read_config_byte(pdev, 0x51, &read_size_reg)) {
dev_err(&pdev->dev,
"Could not read PCI config space for Max read size\n");
return -EIO;
}
read_size_reg &= 0x8f;
read_size_reg |= 0x40;
if (pci_write_config_byte(pdev, 0x51, read_size_reg)) {
dev_err(&pdev->dev,
"Could not write PCI config space for Max read size\n");
return -EIO;
}
/* Get MAC address from config space if an eeprom exists, otherwise
* the MAC address there will not be valid
*/
if (!adapter->has_eeprom) {
et131x_hwaddr_init(adapter);
return 0;
}
for (i = 0; i < ETH_ALEN; i++) {
if (pci_read_config_byte(pdev, ET1310_PCI_MAC_ADDRESS + i,
adapter->rom_addr + i)) {
dev_err(&pdev->dev, "Could not read PCI config space for MAC address\n");
return -EIO;
}
}
memcpy(adapter->addr, adapter->rom_addr, ETH_ALEN);
return 0;
}
/**
* et131x_error_timer_handler
* @data: timer-specific variable; here a pointer to our adapter structure
*
* The routine called when the error timer expires, to track the number of
* recurring errors.
*/
void et131x_error_timer_handler(unsigned long data)
{
struct et131x_adapter *etdev = (struct et131x_adapter *) data;
u32 pm_csr;
pm_csr = readl(&etdev->regs->global.pm_csr);
if ((pm_csr & ET_PM_PHY_SW_COMA) == 0)
UpdateMacStatHostCounters(etdev);
else
dev_err(&etdev->pdev->dev,
"No interrupts, in PHY coma, pm_csr = 0x%x\n", pm_csr);
if (!etdev->Bmsr.bits.link_status &&
etdev->RegistryPhyComa &&
etdev->boot_coma < 11) {
etdev->boot_coma++;
}
if (etdev->boot_coma == 10) {
if (!etdev->Bmsr.bits.link_status
&& etdev->RegistryPhyComa) {
if ((pm_csr & ET_PM_PHY_SW_COMA) == 0) {
/* NOTE - This was originally a 'sync with
* interrupt'. How to do that under Linux?
*/
et131x_enable_interrupts(etdev);
EnablePhyComa(etdev);
}
}
}
/* This is a periodic timer, so reschedule */
mod_timer(&etdev->ErrorTimer, jiffies +
TX_ERROR_PERIOD * HZ / 1000);
}
/**
* et131x_link_detection_handler
*
* Timer function for link up at driver load time
*/
void et131x_link_detection_handler(unsigned long data)
{
struct et131x_adapter *etdev = (struct et131x_adapter *) data;
unsigned long flags;
if (etdev->MediaState == 0) {
spin_lock_irqsave(&etdev->Lock, flags);
etdev->MediaState = NETIF_STATUS_MEDIA_DISCONNECT;
etdev->Flags &= ~fMP_ADAPTER_LINK_DETECTION;
spin_unlock_irqrestore(&etdev->Lock, flags);
netif_carrier_off(etdev->netdev);
}
}
/**
* et131x_configure_global_regs - configure JAGCore global regs
* @etdev: pointer to our adapter structure
*
* Used to configure the global registers on the JAGCore
*/
void ConfigGlobalRegs(struct et131x_adapter *etdev)
{
struct global_regs __iomem *regs = &etdev->regs->global;
writel(0, ®s->rxq_start_addr);
writel(INTERNAL_MEM_SIZE - 1, ®s->txq_end_addr);
if (etdev->RegistryJumboPacket < 2048) {
/* Tx / RxDMA and Tx/Rx MAC interfaces have a 1k word
* block of RAM that the driver can split between Tx
* and Rx as it desires. Our default is to split it
* 50/50:
*/
writel(PARM_RX_MEM_END_DEF, ®s->rxq_end_addr);
writel(PARM_RX_MEM_END_DEF + 1, ®s->txq_start_addr);
} else if (etdev->RegistryJumboPacket < 8192) {
/* For jumbo packets > 2k but < 8k, split 50-50. */
writel(INTERNAL_MEM_RX_OFFSET, ®s->rxq_end_addr);
writel(INTERNAL_MEM_RX_OFFSET + 1, ®s->txq_start_addr);
} else {
/* 9216 is the only packet size greater than 8k that
* is available. The Tx buffer has to be big enough
* for one whole packet on the Tx side. We'll make
* the Tx 9408, and give the rest to Rx
*/
writel(0x01b3, ®s->rxq_end_addr);
writel(0x01b4, ®s->txq_start_addr);
}
/* Initialize the loopback register. Disable all loopbacks. */
writel(0, ®s->loopback);
/* MSI Register */
writel(0, ®s->msi_config);
/* By default, disable the watchdog timer. It will be enabled when
* a packet is queued.
*/
writel(0, ®s->watchdog_timer);
}
/**
* et131x_adapter_setup - Set the adapter up as per cassini+ documentation
* @adapter: pointer to our private adapter structure
*
* Returns 0 on success, errno on failure (as defined in errno.h)
*/
int et131x_adapter_setup(struct et131x_adapter *etdev)
{
int status = 0;
/* Configure the JAGCore */
ConfigGlobalRegs(etdev);
ConfigMACRegs1(etdev);
/* Configure the MMC registers */
/* All we need to do is initialize the Memory Control Register */
writel(ET_MMC_ENABLE, &etdev->regs->mmc.mmc_ctrl);
ConfigRxMacRegs(etdev);
ConfigTxMacRegs(etdev);
ConfigRxDmaRegs(etdev);
ConfigTxDmaRegs(etdev);
ConfigMacStatRegs(etdev);
/* Move the following code to Timer function?? */
status = et131x_xcvr_find(etdev);
if (status != 0)
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_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);
/* Set everything to a reset value */
writel(0x7F, &adapter->regs->global.sw_reset);
writel(0x000f0000, &adapter->regs->mac.cfg1);
writel(0x00000000, &adapter->regs->mac.cfg1);
}
/**
* 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;
/* 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");
return status;
}
/* 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);
return status;
}
/* 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);
}
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_adapter_init
* @etdev: pointer to the private adapter struct
* @pdev: pointer to the PCI device
*
* Initialize the data structures for the et131x_adapter object and link
* them together with the platform provided device structures.
*/
static struct et131x_adapter *et131x_adapter_init(struct net_device *netdev,
struct pci_dev *pdev)
{
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 };
struct et131x_adapter *etdev;
/* Setup the fundamental net_device and private adapter structure elements */
SET_NETDEV_DEV(netdev, &pdev->dev);
/* Allocate private adapter struct and copy in relevant information */
etdev = netdev_priv(netdev);
etdev->pdev = pci_dev_get(pdev);
etdev->netdev = netdev;
/* Do the same for the netdev struct */
netdev->irq = pdev->irq;
netdev->base_addr = pci_resource_start(pdev, 0);
/* Initialize spinlocks here */
spin_lock_init(&etdev->Lock);
spin_lock_init(&etdev->TCBSendQLock);
spin_lock_init(&etdev->TCBReadyQLock);
spin_lock_init(&etdev->send_hw_lock);
spin_lock_init(&etdev->rcv_lock);
spin_lock_init(&etdev->RcvPendLock);
spin_lock_init(&etdev->FbrLock);
spin_lock_init(&etdev->PHYLock);
/* Parse configuration parameters into the private adapter struct */
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 */
/* Set the MAC address to a default */
memcpy(etdev->addr, 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 */
return etdev;
}
/**
* 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.
*/
static int __devinit et131x_pci_setup(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
int result = -EBUSY;
int pm_cap;
bool pci_using_dac;
struct net_device *netdev;
struct et131x_adapter *adapter;
/* Enable the device via the PCI subsystem */
if (pci_enable_device(pdev) != 0) {
dev_err(&pdev->dev,
"pci_enable_device() failed\n");
return -EIO;
}
/* Perform some basic PCI checks */
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
dev_err(&pdev->dev,
"Can't find PCI device's base address\n");
goto err_disable;
}
if (pci_request_regions(pdev, DRIVER_NAME)) {
dev_err(&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(&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, DMA_BIT_MASK(64))) {
pci_using_dac = true;
result = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
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, DMA_BIT_MASK(32))) {
pci_using_dac = false;
} else {
dev_err(&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(&pdev->dev, "Couldn't alloc netdev struct\n");
result = -ENOMEM;
goto err_release_res;
}
adapter = et131x_adapter_init(netdev, pdev);
/* Initialise the PCI setup for the device */
et131x_pci_init(adapter, pdev);
/* Map the bus-relative registers to system virtual memory */
adapter->regs = pci_ioremap_bar(pdev, 0);
if (adapter->regs == NULL) {
dev_err(&pdev->dev, "Cannot map device registers\n");
result = -ENOMEM;
goto err_free_dev;
}
/* 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);
/*
* Set up the task structure for the ISR's deferred handler
*/
INIT_WORK(&adapter->task, et131x_isr_handler);
/* Copy address into the net_device struct */
memcpy(netdev->dev_addr, adapter->addr, 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);
/* Initialize variable for counting how long we do not have
link status */
adapter->boot_coma = 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);
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);
return result;
}
/**
* 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.
*/
static 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 = 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);
}
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 __init 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 __exit 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);