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Commit 87a54bc3 authored by Jeff Garzik's avatar Jeff Garzik
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Merge new gigabit ethernet driver e1000, from Intel. 

Contributors: Christopher Leech @ Intel, Scott Feldman @ Intel
parent 479aba47
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Linux* Base Driver for the Intel(R) PRO/1000 Family of Adapters
===============================================================
February 5, 2002
Contents
========
- In This Release
- Supported Adapters
- Command Line Parameters
- Speed and Duplex Configuration
- Known Issues
- Support
In This Release
===============
This file describes the Linux* Base Driver for the Intel(R) PRO/1000 Family
of Adapters, version 4.2.x.
This driver includes support for Itanium(TM)-based systems.
This release version includes the following:
- support for the ethtool 1.4 interface. A third-party application can use
the ethtool interface to get and set driver parameters.
- the zero copy feature. Zero copy provides faster information throughput.
By default, this feature is enabled if using a kernel that supports it.
Zero copy is not supported on the original PWLA8490 (plain) adapter.
Supported Adapters
==================
The following Intel network adapters are compatible with the drivers in this
release:
Controller Adapter Name Board IDs
---------- ------------ ---------
82542 PRO/1000 Gigabit Server Adapter 700262-xxx, 717037-xxx
82543 PRO/1000 F Server Adapter 738640-xxx, A38888-xxx,
A06512-xxx
82543 PRO/1000 T Server Adapter A19845-xxx, A33948-xxx
82544 PRO/1000 XT Server Adapter A51580-xxx
82544 PRO/1000 XF Server Adapter A50484-xxx
82544 PRO/1000 T Desktop Adapter A62947-xxx
To verify your Intel adapter is supported, find the board ID number on the
adapter. Look for a label that has a barcode and a number in the format of
123456-001 (six digits hyphen three digits). Match this to the list of
numbers above.
For more information on how to identify your adapter, go to the Adapter &
Driver ID Guide at:
http://support.intel.com/support/network/adapter/pro100/21397.htm
For the latest Intel network drivers for Linux, go to:
http://appsr.intel.com/scripts-df/support_intel.asp
Command Line Parameters
=======================
If the driver is built as a module, the following parameters are used by
entering them on the command line with the modprobe or insmod command.
For example, with two PRO/1000 PCI adapters, entering:
insmod e1000 TxDescriptors=80,128
loads the e1000 driver with 80 TX resources for the first adapter and 128 TX
resources for the second adapter.
For more information about the AutoNeg, Duplex, and Speed parameters, see the
"Speed and Duplex Configuration" section in this document.
AutoNeg (Intel PRO/1000 T and PRO/1000 XT server adapters only)
Valid Range: 0-0x0F, 0x20-0x2F
Default Value: 0x2F
This parameter is a bit mask that specifies which speed and duplex
settings the board advertises. When this parameter is used, the Speed and
Duplex parameters must not be specified.
Duplex (Intel PRO/1000 T and PRO/1000 XT server adapters only)
Valid Range: 0-2 (0=auto-negotiate, 1=half, 2=full)
Default Value: 0
Defines the direction in which data is allowed to flow. Can by either one
or two-directional. If both Duplex and the link partner are set to auto-
negotiate, the board auto-detects the correct duplex. If the link partner
is forced (either full or half), Duplex defaults to half-duplex.
FlowControl
Valid Range: 0-3 (0=none, 1=Rx only, 2=Tx only, 3=Rx&Tx)
Default: Read flow control settings from the EEPROM
This parameter controls the automatic generation(Tx) and response(Rx) to
Ethernet PAUSE frames.
RxDescriptors
Valid Range: 80-256 for 82542 and 82543-based adapters
80-4096 for 82544-based adapters
Default Value: 256
This value is the number of receive descriptors allocated by the driver.
Increasing this value allows the driver to buffer more incoming packets.
Each descriptor is 16 bytes. A receive buffer is also allocated for each
descriptor and can be either 2048, 4096, 8192, or 16384 bytes, depending
on the MTU setting.
RxIntDelay
Valid Range: 0-65535 (0=off)
Default Value: 64
This value delays the generation of receive interrupts in units of 1.024
microseconds. Receive interrupt reduction can improve CPU efficiency if
properly tuned for specific network traffic. Increasing this value adds
extra latency to frame reception and can end up decreasing the throughput
of TCP traffic. If the system is reporting dropped receives, this value
may be set too high, causing the driver to run out of available receive
descriptors.
Speed (Intel PRO/1000 T and PRO/1000 XT server adapters only)
Valid Settings: 0, 10, 100, 1000
Default Value: 0 (auto-negotiate at all supported speeds)
Speed forces the line speed to the specified value in megabits per second
(Mbps). If this parameter is not specified or is set to 0 and the link
partner is set to auto-negotiate, the board will auto-detect the correct
speed. Duplex must also be set when Speed is set to either 10 or 100.
TxDescriptors
Valid Range: 80-256 for 82542 and 82543-based adapters
80-4096 for 82544-based adapters
Default Value: 256
This value is the number of transmit descriptors allocated by the driver.
Increasing this value allows the driver to queue more transmits. Each
descriptor is 16 bytes.
TxIntDelay
Valid Range: 0-65535 (0=off)
Default Value: 64
This value delays the generation of transmit interrupts in units of 1.024
microseconds. Transmit interrupt reduction can improve CPU efficiency if
properly tuned for specific network traffic. If the system is reporting
dropped transmits, this value may be set too high causing the driver to
run out of available transmit descriptors.
XsumRX (not available on the PRO/1000 Gigabit Server Adapter)
Valid Range: 0-1
Default Value: 1
A value of '1' indicates that the driver should enable IP checksum
offload for received packets (both UDP and TCP) to the adapter hardware.
Speed and Duplex Configuration
==============================
Three keywords are used to control the speed and duplex configuration of the
PRO/1000 T and PRO/1000 XT server adapters. These keywords are Speed, Duplex,
and AutoNeg.
If the board uses a fiber interface, these keywords are ignored, and the
fiber interface board only links at 1000 Mbps full-duplex.
For copper-based boards, the keywords interact as follows:
The default operation is auto-negotiate. The board advertises all supported
speed and duplex combinations, and it links at the highest common speed and
duplex mode IF the link partner is set to auto-negotiate.
If Speed = 1000, limited auto-negotiation is enabled and only 1000 Mbps is
advertised (The 1000BaseT spec requires auto-negotiation.)
If Speed = 10 or 100, then both Speed and Duplex must be set. Auto-
negotiation is disabled, and the AutoNeg parameter is ignored. Partner MUST
also be forced.
The AutoNeg parameter is used when more control is required over the auto-
negotiation process. When this parameter is used, Speed and Duplex must not
be specified. This parameter is a bitmap that specifies which speed and
duplex settings are advertised to the link partner.
Bit 7 6 5 4 3 2 1 0
Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10
Duplex Full Full Half Full Half
Note that setting AutoNeg does not guarantee that the board will link at the
highest specified speed or duplex mode, but the board will link at the
highest possible speed/duplex of the link partner IF the link partner is also
set to auto-negotiate. If the link partner is forced speed/duplex, the
adapter MUST be forced to the same speed/duplex.
Known Issues
============
Driver Hangs Under Heavy Traffic Loads
--------------------------------------
Intel is aware that previously released e1000 drivers may hang under very
specific types of heavy traffic loads. This version includes a workaround
that resets the adapter automatically if a hang condition is detected. This
workaround ensures network traffic flow is not affected when a hang occurs.
Jumbo Frames System Requirement
-------------------------------
Memory allocation failures have been observed on Linux systems with 64 MB
of RAM or less that are running Jumbo Frames. If you are using Jumbo
Frames, your system may require more than the advertised minimum
requirement of 64 MB of system memory.
Support
=======
For general information and support, go to the Intel support website at:
http://support.intel.com
If an issue is identified with the released source code on the supported
kernel with a supported adapter, email the specific information related to
the issue to linux.nics@intel.com.
License
=======
This software program is released under the terms of a license agreement
between you ('Licensee') and Intel. Do not use or load this software or any
associated materials (collectively, the 'Software') until you have carefully
read the full terms and conditions of the LICENSE located in this software
package. By loading or using the Software, you agree to the terms of this
Agreement. If you do not agree with the terms of this Agreement, do not
install or use the Software.
* Other names and brands may be claimed as the property of others.
MAINTAINERS
View file @ 87a54bc3
...@@ -777,6 +777,13 @@ P: Tigran Aivazian ...@@ -777,6 +777,13 @@ P: Tigran Aivazian
M: tigran@veritas.com M: tigran@veritas.com
S: Maintained S: Maintained
INTEL PRO/1000 GIGABIT ETHERNET SUPPORT
P: Chris Leech
M: christopher.leech@intel.com
P: Scott Feldman
M: scott.feldman@intel.com
S: Supported
INTERMEZZO FILE SYSTEM INTERMEZZO FILE SYSTEM
P: Peter J. Braam P: Peter J. Braam
M: braam@clusterfs.com M: braam@clusterfs.com
......
drivers/net/Config.help
View file @ 87a54bc3
...@@ -806,6 +806,42 @@ CONFIG_DL2K ...@@ -806,6 +806,42 @@ CONFIG_DL2K
say M here and read <file:Documentation/modules.txt>. This is say M here and read <file:Documentation/modules.txt>. This is
recommended. The module will be called dl2k.o. recommended. The module will be called dl2k.o.
CONFIG_E1000
This driver supports Intel(R) PRO/1000 gigabit ethernet family of
adapters, which includes:
Controller Adapter Name Board IDs
---------- ------------ ---------
82542 PRO/1000 Gigabit Server Adapter 700262-xxx,
717037-xxx
82543 PRO/1000 F Server Adapter 738640-xxx,
A38888-xxx,
A06512-xxx
82543 PRO/1000 T Server Adapter A19845-xxx,
A33948-xxx
82544 PRO/1000 XT Server Adapter A51580-xxx
82544 PRO/1000 XF Server Adapter A50484-xxx
82544 PRO/1000 T Desktop Adapter A62947-xxx
For more information on how to identify your adapter, go to the
Adapter & Driver ID Guide at:
<http://support.intel.com/support/network/adapter/pro100/21397.htm>
For general information and support, go to the Intel support
website at:
<http://support.intel.com>
More specific information on configuring the driver is in
<file:Documentation/networking/e1000.txt>.
This driver is also available as a module ( = code which can be
inserted in and removed from the running kernel whenever you want).
The module will be called e1000.o. If you want to compile it as a
module, say M here and read <file:Documentation/modules.txt> as well
as <file:Documentation/networking/net-modules.txt>.
CONFIG_LANCE CONFIG_LANCE
If you have a network (Ethernet) card of this type, say Y and read If you have a network (Ethernet) card of this type, say Y and read
the Ethernet-HOWTO, available from the Ethernet-HOWTO, available from
......
drivers/net/Config.in
View file @ 87a54bc3
...@@ -231,6 +231,7 @@ if [ "$CONFIG_ACENIC" != "n" ]; then ...@@ -231,6 +231,7 @@ if [ "$CONFIG_ACENIC" != "n" ]; then
bool ' Omit support for old Tigon I based AceNICs' CONFIG_ACENIC_OMIT_TIGON_I bool ' Omit support for old Tigon I based AceNICs' CONFIG_ACENIC_OMIT_TIGON_I
fi fi
dep_tristate 'D-Link DL2000-based Gigabit Ethernet support' CONFIG_DL2K $CONFIG_PCI dep_tristate 'D-Link DL2000-based Gigabit Ethernet support' CONFIG_DL2K $CONFIG_PCI
dep_tristate 'Intel(R) PRO/1000 Gigabit Ethernet support' CONFIG_E1000 $CONFIG_PCI
dep_tristate 'MyriCOM Gigabit Ethernet support' CONFIG_MYRI_SBUS $CONFIG_SBUS dep_tristate 'MyriCOM Gigabit Ethernet support' CONFIG_MYRI_SBUS $CONFIG_SBUS
dep_tristate 'National Semiconduct DP83820 support' CONFIG_NS83820 $CONFIG_PCI dep_tristate 'National Semiconduct DP83820 support' CONFIG_NS83820 $CONFIG_PCI
dep_tristate 'Packet Engines Hamachi GNIC-II support' CONFIG_HAMACHI $CONFIG_PCI dep_tristate 'Packet Engines Hamachi GNIC-II support' CONFIG_HAMACHI $CONFIG_PCI
......
drivers/net/Makefile
View file @ 87a54bc3
...@@ -25,6 +25,10 @@ ifeq ($(CONFIG_TULIP),y) ...@@ -25,6 +25,10 @@ ifeq ($(CONFIG_TULIP),y)
obj-y += tulip/tulip.o obj-y += tulip/tulip.o
endif endif
ifeq ($(CONFIG_E1000),y)
obj-y += e1000/e1000.o
endif
ifeq ($(CONFIG_ISDN_PPP),y) ifeq ($(CONFIG_ISDN_PPP),y)
obj-$(CONFIG_ISDN) += slhc.o obj-$(CONFIG_ISDN) += slhc.o
endif endif
...@@ -32,6 +36,7 @@ endif ...@@ -32,6 +36,7 @@ endif
subdir-$(CONFIG_NET_PCMCIA) += pcmcia subdir-$(CONFIG_NET_PCMCIA) += pcmcia
subdir-$(CONFIG_NET_WIRELESS) += wireless subdir-$(CONFIG_NET_WIRELESS) += wireless
subdir-$(CONFIG_TULIP) += tulip subdir-$(CONFIG_TULIP) += tulip
subdir-$(CONFIG_E1000) += e1000
subdir-$(CONFIG_IRDA) += irda subdir-$(CONFIG_IRDA) += irda
subdir-$(CONFIG_TR) += tokenring subdir-$(CONFIG_TR) += tokenring
subdir-$(CONFIG_WAN) += wan subdir-$(CONFIG_WAN) += wan
......
drivers/net/e1000/LICENSE 0 → 100644
View file @ 87a54bc3
This software program is available to you under a choice of one of two
licenses. You may choose to be licensed under either the GNU General Public
License (GPL) Version 2, June 1991, available at
http://www.fsf.org/copyleft/gpl.html, or the Intel BSD + Patent License, the
text of which follows:
Recipient has requested a license and Intel Corporation ("Intel") is willing
to grant a license for the software entitled Linux Base Driver for the
Intel(R) PRO/1000 Family of Adapters (e1000) (the "Software") being provided
by Intel Corporation. The following definitions apply to this license:
"Licensed Patents" means patent claims licensable by Intel Corporation which
are necessarily infringed by the use of sale of the Software alone or when
combined with the operating system referred to below.
"Recipient" means the party to whom Intel delivers this Software.
"Licensee" means Recipient and those third parties that receive a license to
any operating system available under the GNU Public License version 2.0 or
later.
Copyright (c) 1999 - 2002 Intel Corporation.
All rights reserved.
The license is provided to Recipient and Recipient's Licensees under the
following terms.
Redistribution and use in source and binary forms of the Software, with or
without modification, are permitted provided that the following conditions
are met:
Redistributions of source code of the Software may retain the above
copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form of the Software may reproduce the above
copyright notice, this list of conditions and the following disclaimer in
the documentation and/or materials provided with the distribution.
Neither the name of Intel Corporation nor the names of its contributors
shall be used to endorse or promote products derived from this Software
without specific prior written permission.
Intel hereby grants Recipient and Licensees a non-exclusive, worldwide,
royalty-free patent license under Licensed Patents to make, use, sell, offer
to sell, import and otherwise transfer the Software, if any, in source code
and object code form. This license shall include changes to the Software
that are error corrections or other minor changes to the Software that do
not add functionality or features when the Software is incorporated in any
version of an operating system that has been distributed under the GNU
General Public License 2.0 or later. This patent license shall apply to the
combination of the Software and any operating system licensed under the GNU
Public License version 2.0 or later if, at the time Intel provides the
Software to Recipient, such addition of the Software to the then publicly
available versions of such operating systems available under the GNU Public
License version 2.0 or later (whether in gold, beta or alpha form) causes
such combination to be covered by the Licensed Patents. The patent license
shall not apply to any other combinations which include the Software. NO
hardware per se is licensed hereunder.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR IT CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
ANY LOSS OF USE; DATA, OR PROFITS; OR BUSINESS INTERUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY, WHETHER IN 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.
drivers/net/e1000/Makefile 0 → 100644
View file @ 87a54bc3
#
# Makefile for the Intel(R) PRO/1000 ethernet driver
#
# Note! Dependencies are done automagically by 'make dep', which also
# removes any old dependencies. DON'T put your own dependencies here
# unless it's something special (ie not a .c file).
#
# Note 2! The CFLAGS definitions are now in the main makefile...
O_TARGET := e1000.o
obj-y := e1000_main.o e1000_mac.o e1000_phy.o \
e1000_ethtool.o e1000_param.o e1000_proc.o
obj-m := $(O_TARGET)
include $(TOPDIR)/Rules.make
drivers/net/e1000/e1000.h 0 → 100644
View file @ 87a54bc3
/*******************************************************************************
This software program is available to you under a choice of one of two
licenses. You may choose to be licensed under either the GNU General Public
License (GPL) Version 2, June 1991, available at
http://www.fsf.org/copyleft/gpl.html, or the Intel BSD + Patent License, the
text of which follows:
Recipient has requested a license and Intel Corporation ("Intel") is willing
to grant a license for the software entitled Linux Base Driver for the
Intel(R) PRO/1000 Family of Adapters (e1000) (the "Software") being provided
by Intel Corporation. The following definitions apply to this license:
"Licensed Patents" means patent claims licensable by Intel Corporation which
are necessarily infringed by the use of sale of the Software alone or when
combined with the operating system referred to below.
"Recipient" means the party to whom Intel delivers this Software.
"Licensee" means Recipient and those third parties that receive a license to
any operating system available under the GNU Public License version 2.0 or
later.
Copyright (c) 1999 - 2002 Intel Corporation.
All rights reserved.
The license is provided to Recipient and Recipient's Licensees under the
following terms.
Redistribution and use in source and binary forms of the Software, with or
without modification, are permitted provided that the following conditions
are met:
Redistributions of source code of the Software may retain the above
copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form of the Software may reproduce the above
copyright notice, this list of conditions and the following disclaimer in
the documentation and/or materials provided with the distribution.
Neither the name of Intel Corporation nor the names of its contributors
shall be used to endorse or promote products derived from this Software
without specific prior written permission.
Intel hereby grants Recipient and Licensees a non-exclusive, worldwide,
royalty-free patent license under Licensed Patents to make, use, sell, offer
to sell, import and otherwise transfer the Software, if any, in source code
and object code form. This license shall include changes to the Software
that are error corrections or other minor changes to the Software that do
not add functionality or features when the Software is incorporated in any
version of an operating system that has been distributed under the GNU
General Public License 2.0 or later. This patent license shall apply to the
combination of the Software and any operating system licensed under the GNU
Public License version 2.0 or later if, at the time Intel provides the
Software to Recipient, such addition of the Software to the then publicly
available versions of such operating systems available under the GNU Public
License version 2.0 or later (whether in gold, beta or alpha form) causes
such combination to be covered by the Licensed Patents. The patent license
shall not apply to any other combinations which include the Software. NO
hardware per se is licensed hereunder.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR IT CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
ANY LOSS OF USE; DATA, OR PROFITS; OR BUSINESS INTERUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY, WHETHER IN 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.
*******************************************************************************/
/* Linux PRO/1000 Ethernet Driver main header file */
#ifndef _E1000_H_
#define _E1000_H_
#include <linux/stddef.h>
#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <asm/byteorder.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/string.h>
#include <linux/pagemap.h>
#include <asm/bitops.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <linux/capability.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <net/pkt_sched.h>
#include <linux/list.h>
#include <asm/uaccess.h>
struct e1000_adapter;
#include "e1000_mac.h"
#include "e1000_phy.h"
#define BAR_0 0
/* Advertise that we can DMA from any address location */
#define E1000_DMA_MASK (~0x0UL)
#if DBG
#define E1000_DBG(args...) printk(KERN_DEBUG "e1000: " args)
#else
#define E1000_DBG(args...)
#endif
#define E1000_ERR(args...) printk(KERN_ERR "e1000: " args)
#ifdef CONFIG_PPC
#define E1000_MAX_INTR 1
#else
#define E1000_MAX_INTR 10
#endif
/* Supported Rx Buffer Sizes */
#define E1000_RXBUFFER_2048 2048
#define E1000_RXBUFFER_4096 4096
#define E1000_RXBUFFER_8192 8192
#define E1000_RXBUFFER_16384 16384
/* How many Tx Descriptors do we need to call netif_wake_queue ? */
#define E1000_TX_QUEUE_WAKE 16
#define E1000_JUMBO_PBA 0x00000028
#define E1000_DEFAULT_PBA 0x00000030
/* only works for sizes that are powers of 2 */
#define E1000_ROUNDUP(i, size) ((i) = (((i) + (size) - 1) & ~((size) - 1)))
/* wrapper around a pointer to a socket buffer,
* so a DMA handle can be stored along with the buffer */
struct e1000_buffer {
struct sk_buff *skb;
uint64_t dma;
unsigned long length;
};
struct e1000_desc_ring {
/* pointer to the descriptor ring memory */
void *desc;
/* physical address of the descriptor ring */
dma_addr_t dma;
/* length of descriptor ring in bytes */
unsigned int size;
/* number of descriptors in the ring */
unsigned int count;
/* (atomic) number of desc with no buffer */
atomic_t unused;
/* number of desc with no buffer */
unsigned int unused_count;
/* next descriptor to associate a buffer with */
unsigned int next_to_use;
/* next descriptor to check for DD status bit */
unsigned int next_to_clean;
/* array of buffer information structs */
struct e1000_buffer *buffer_info;
};
#define E1000_RX_DESC(ring, i) \
(&(((struct e1000_rx_desc *)((ring).desc))[i]))
#define E1000_TX_DESC(ring, i) \
(&(((struct e1000_tx_desc *)((ring).desc))[i]))
#define E1000_CONTEXT_DESC(ring, i) \
(&(((struct e1000_context_desc *)((ring).desc))[i]))
/* board specific private data structure */
struct e1000_adapter {
struct timer_list watchdog_timer;
struct timer_list phy_info_timer;
#ifdef CONFIG_PROC_FS
struct list_head proc_list_head;
#endif
char *id_string;
uint32_t bd_number;
uint32_t rx_buffer_len;
uint32_t part_num;
uint32_t wol;
uint16_t link_speed;
uint16_t link_duplex;
spinlock_t stats_lock;
atomic_t irq_sem;
boolean_t rx_csum;
/* TX */
struct e1000_desc_ring tx_ring;
unsigned long trans_finish;
uint32_t tx_int_delay;
uint32_t txd_cmd;
/* RX */
struct e1000_desc_ring rx_ring;
uint64_t hw_csum_err;
uint64_t hw_csum_good;
uint32_t rx_int_delay;
/* OS defined structs */
struct net_device *netdev;
struct pci_dev *pdev;
struct net_device_stats net_stats;
/* structs defined in e1000_mac.h or e1000_phy.h */
struct e1000_shared_adapter shared;
struct e1000_shared_stats stats;
struct e1000_phy_info phy_info;
struct e1000_phy_stats phy_stats;
};
#endif /* _E1000_H_ */
drivers/net/e1000/e1000_ethtool.c 0 → 100644
View file @ 87a54bc3
/*******************************************************************************
This software program is available to you under a choice of one of two
licenses. You may choose to be licensed under either the GNU General Public
License (GPL) Version 2, June 1991, available at
http://www.fsf.org/copyleft/gpl.html, or the Intel BSD + Patent License, the
text of which follows:
Recipient has requested a license and Intel Corporation ("Intel") is willing
to grant a license for the software entitled Linux Base Driver for the
Intel(R) PRO/1000 Family of Adapters (e1000) (the "Software") being provided
by Intel Corporation. The following definitions apply to this license:
"Licensed Patents" means patent claims licensable by Intel Corporation which
are necessarily infringed by the use of sale of the Software alone or when
combined with the operating system referred to below.
"Recipient" means the party to whom Intel delivers this Software.
"Licensee" means Recipient and those third parties that receive a license to
any operating system available under the GNU Public License version 2.0 or
later.
Copyright (c) 1999 - 2002 Intel Corporation.
All rights reserved.
The license is provided to Recipient and Recipient's Licensees under the
following terms.
Redistribution and use in source and binary forms of the Software, with or
without modification, are permitted provided that the following conditions
are met:
Redistributions of source code of the Software may retain the above
copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form of the Software may reproduce the above
copyright notice, this list of conditions and the following disclaimer in
the documentation and/or materials provided with the distribution.
Neither the name of Intel Corporation nor the names of its contributors
shall be used to endorse or promote products derived from this Software
without specific prior written permission.
Intel hereby grants Recipient and Licensees a non-exclusive, worldwide,
royalty-free patent license under Licensed Patents to make, use, sell, offer
to sell, import and otherwise transfer the Software, if any, in source code
and object code form. This license shall include changes to the Software
that are error corrections or other minor changes to the Software that do
not add functionality or features when the Software is incorporated in any
version of an operating system that has been distributed under the GNU
General Public License 2.0 or later. This patent license shall apply to the
combination of the Software and any operating system licensed under the GNU
Public License version 2.0 or later if, at the time Intel provides the
Software to Recipient, such addition of the Software to the then publicly
available versions of such operating systems available under the GNU Public
License version 2.0 or later (whether in gold, beta or alpha form) causes
such combination to be covered by the Licensed Patents. The patent license
shall not apply to any other combinations which include the Software. NO
hardware per se is licensed hereunder.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR IT CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
ANY LOSS OF USE; DATA, OR PROFITS; OR BUSINESS INTERUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY, WHETHER IN 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.
*******************************************************************************/
/* ethtool support for e1000 */
#include "e1000.h"
#include <linux/ethtool.h>
#include <asm/uaccess.h>
extern char e1000_driver_name[];
extern char e1000_driver_version[];
extern int e1000_up(struct e1000_adapter *adapter);
extern void e1000_down(struct e1000_adapter *adapter);
extern void e1000_enable_WOL(struct e1000_adapter *adapter);
static void
e1000_ethtool_gset(struct e1000_adapter *adapter, struct ethtool_cmd *ecmd)
{
struct e1000_shared_adapter *shared = &adapter->shared;
if(shared->media_type == e1000_media_type_copper) {
ecmd->supported = (SUPPORTED_10baseT_Half |
SUPPORTED_10baseT_Full |
SUPPORTED_100baseT_Half |
SUPPORTED_100baseT_Full |
SUPPORTED_1000baseT_Full|
SUPPORTED_Autoneg |
SUPPORTED_TP);
ecmd->advertising = ADVERTISED_TP;
if(shared->autoneg == 1) {
ecmd->advertising |= ADVERTISED_Autoneg;
/* the e1000 autoneg seems to match ethtool nicely */
ecmd->advertising |= shared->autoneg_advertised;
}
ecmd->port = PORT_TP;
ecmd->phy_address = shared->phy_addr;
if(shared->mac_type == e1000_82543)
ecmd->transceiver = XCVR_EXTERNAL;
else
ecmd->transceiver = XCVR_INTERNAL;
} else {
ecmd->supported = (SUPPORTED_1000baseT_Full |
SUPPORTED_FIBRE |
SUPPORTED_Autoneg);
ecmd->advertising = (SUPPORTED_1000baseT_Full |
SUPPORTED_FIBRE |
SUPPORTED_Autoneg);
ecmd->port = PORT_FIBRE;
ecmd->transceiver = XCVR_EXTERNAL;
}
if(netif_carrier_ok(adapter->netdev)) {
e1000_get_speed_and_duplex(shared, &adapter->link_speed,
&adapter->link_duplex);
ecmd->speed = adapter->link_speed;
/* unfortunatly FULL_DUPLEX != DUPLEX_FULL
* and HALF_DUPLEX != DUPLEX_HALF */
if(adapter->link_duplex == FULL_DUPLEX)
ecmd->duplex = DUPLEX_FULL;
else
ecmd->duplex = DUPLEX_HALF;
} else {
ecmd->speed = -1;
ecmd->duplex = -1;
}
ecmd->autoneg = (shared->autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
return;
}
static int
e1000_ethtool_sset(struct e1000_adapter *adapter, struct ethtool_cmd *ecmd)
{
struct e1000_shared_adapter *shared = &adapter->shared;
if(ecmd->autoneg == AUTONEG_ENABLE) {
shared->autoneg = 1;
shared->autoneg_advertised = (ecmd->advertising & 0x002F);
} else {
shared->autoneg = 0;
switch(ecmd->speed + ecmd->duplex) {
case SPEED_10 + DUPLEX_HALF:
shared->forced_speed_duplex = e1000_10_half;
break;
case SPEED_10 + DUPLEX_FULL:
shared->forced_speed_duplex = e1000_10_full;
break;
case SPEED_100 + DUPLEX_HALF:
shared->forced_speed_duplex = e1000_100_half;
break;
case SPEED_100 + DUPLEX_FULL:
shared->forced_speed_duplex = e1000_100_full;
break;
case SPEED_1000 + DUPLEX_FULL:
shared->autoneg = 1;
shared->autoneg_advertised = ADVERTISE_1000_FULL;
break;
case SPEED_1000 + DUPLEX_HALF: /* not supported */
default:
return -EINVAL;
}
}
/* reset the link */
e1000_down(adapter);
e1000_up(adapter);
return 0;
}
static inline int
e1000_eeprom_size(struct e1000_shared_adapter *shared)
{
return 128;
}
static void
e1000_ethtool_gdrvinfo(struct e1000_adapter *adapter,
struct ethtool_drvinfo *drvinfo)
{
strncpy(drvinfo->driver, e1000_driver_name, 32);
strncpy(drvinfo->version, e1000_driver_version, 32);
strncpy(drvinfo->fw_version, "", 32);
strncpy(drvinfo->bus_info, adapter->pdev->slot_name, 32);
drvinfo->eedump_len = e1000_eeprom_size(&adapter->shared);
return;
}
static void
e1000_ethtool_geeprom(struct e1000_adapter *adapter,
struct ethtool_eeprom *eeprom, uint16_t *eeprom_buff)
{
struct e1000_shared_adapter *shared = &adapter->shared;
int i, max_len;
eeprom->magic = shared->vendor_id | (shared->device_id << 16);
max_len = e1000_eeprom_size(shared);
if ((eeprom->offset + eeprom->len) > max_len)
eeprom->len = (max_len - eeprom->offset);
for(i = 0; i < max_len; i++)
eeprom_buff[i] = e1000_read_eeprom(&adapter->shared, i);
return;
}
static void
e1000_ethtool_gwol(struct e1000_adapter *adapter, struct ethtool_wolinfo *wol)
{
struct e1000_shared_adapter *shared = &adapter->shared;
if(shared->mac_type < e1000_82544) {
wol->supported = 0;
wol->wolopts = 0;
return;
}
wol->supported = WAKE_PHY | WAKE_UCAST |
WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
wol->wolopts = 0;
if(adapter->wol & E1000_WUFC_LNKC)
wol->wolopts |= WAKE_PHY;
if(adapter->wol & E1000_WUFC_EX)
wol->wolopts |= WAKE_UCAST;
if(adapter->wol & E1000_WUFC_MC)
wol->wolopts |= WAKE_MCAST;
if(adapter->wol & E1000_WUFC_BC)
wol->wolopts |= WAKE_BCAST;
if(adapter->wol & E1000_WUFC_MAG)
wol->wolopts |= WAKE_MAGIC;
return;
}
static int
e1000_ethtool_swol(struct e1000_adapter *adapter, struct ethtool_wolinfo *wol)
{
struct e1000_shared_adapter *shared = &adapter->shared;
if(shared->mac_type < e1000_82544)
return wol->wolopts == 0 ? 0 : -EOPNOTSUPP;
adapter->wol = 0;
if(wol->wolopts & WAKE_PHY)
adapter->wol |= E1000_WUFC_LNKC;
if(wol->wolopts & WAKE_UCAST)
adapter->wol |= E1000_WUFC_EX;
if(wol->wolopts & WAKE_MCAST)
adapter->wol |= E1000_WUFC_MC;
if(wol->wolopts & WAKE_BCAST)
adapter->wol |= E1000_WUFC_BC;
if(wol->wolopts & WAKE_MAGIC)
adapter->wol |= E1000_WUFC_MAG;
e1000_enable_WOL(adapter);
return 0;
}
int
e1000_ethtool_ioctl(struct net_device *netdev, struct ifreq *ifr)
{
struct e1000_adapter *adapter = netdev->priv;
void *addr = ifr->ifr_data;
uint32_t cmd;
if(get_user(cmd, (uint32_t *) addr))
return -EFAULT;
switch(cmd) {
case ETHTOOL_GSET: {
struct ethtool_cmd ecmd = {ETHTOOL_GSET};
e1000_ethtool_gset(adapter, &ecmd);
if(copy_to_user(addr, &ecmd, sizeof(ecmd)))
return -EFAULT;
return 0;
}
case ETHTOOL_SSET: {
struct ethtool_cmd ecmd;
if(!capable(CAP_NET_ADMIN))
return -EPERM;
if(copy_from_user(&ecmd, addr, sizeof(ecmd)))
return -EFAULT;
return e1000_ethtool_sset(adapter, &ecmd);
}
case ETHTOOL_GDRVINFO: {
struct ethtool_drvinfo drvinfo = {ETHTOOL_GDRVINFO};
e1000_ethtool_gdrvinfo(adapter, &drvinfo);
if(copy_to_user(addr, &drvinfo, sizeof(drvinfo)))
return -EFAULT;
return 0;
}
case ETHTOOL_NWAY_RST: {
if(!capable(CAP_NET_ADMIN))
return -EPERM;
e1000_down(adapter);
e1000_up(adapter);
return 0;
}
case ETHTOOL_GLINK: {
struct ethtool_value link = {ETHTOOL_GLINK};
link.data = netif_carrier_ok(netdev);
if(copy_to_user(addr, &link, sizeof(link)))
return -EFAULT;
return 0;
}
case ETHTOOL_GWOL: {
struct ethtool_wolinfo wol = {ETHTOOL_GWOL};
e1000_ethtool_gwol(adapter, &wol);
if(copy_to_user(addr, &wol, sizeof(wol)) != 0)
return -EFAULT;
return 0;
}
case ETHTOOL_SWOL: {
struct ethtool_wolinfo wol;
if(!capable(CAP_NET_ADMIN))
return -EPERM;
if(copy_from_user(&wol, addr, sizeof(wol)) != 0)
return -EFAULT;
return e1000_ethtool_swol(adapter, &wol);
}
case ETHTOOL_GEEPROM: {
struct ethtool_eeprom eeprom = {ETHTOOL_GEEPROM};
uint16_t eeprom_buff[256];
if(copy_from_user(&eeprom, addr, sizeof(eeprom)))
return -EFAULT;
e1000_ethtool_geeprom(adapter, &eeprom, eeprom_buff);
if(copy_to_user(addr, &eeprom, sizeof(eeprom)))
return -EFAULT;
addr += offsetof(struct ethtool_eeprom, data);
if(copy_to_user(addr, eeprom_buff + eeprom.offset, eeprom.len))
return -EFAULT;
return 0;
}
default:
return -EOPNOTSUPP;
}
}
drivers/net/e1000/e1000_mac.c 0 → 100644
View file @ 87a54bc3
/*******************************************************************************
This software program is available to you under a choice of one of two
licenses. You may choose to be licensed under either the GNU General Public
License (GPL) Version 2, June 1991, available at
http://www.fsf.org/copyleft/gpl.html, or the Intel BSD + Patent License, the
text of which follows:
Recipient has requested a license and Intel Corporation ("Intel") is willing
to grant a license for the software entitled Linux Base Driver for the
Intel(R) PRO/1000 Family of Adapters (e1000) (the "Software") being provided
by Intel Corporation. The following definitions apply to this license:
"Licensed Patents" means patent claims licensable by Intel Corporation which
are necessarily infringed by the use of sale of the Software alone or when
combined with the operating system referred to below.
"Recipient" means the party to whom Intel delivers this Software.
"Licensee" means Recipient and those third parties that receive a license to
any operating system available under the GNU Public License version 2.0 or
later.
Copyright (c) 1999 - 2002 Intel Corporation.
All rights reserved.
The license is provided to Recipient and Recipient's Licensees under the
following terms.
Redistribution and use in source and binary forms of the Software, with or
without modification, are permitted provided that the following conditions
are met:
Redistributions of source code of the Software may retain the above
copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form of the Software may reproduce the above
copyright notice, this list of conditions and the following disclaimer in
the documentation and/or materials provided with the distribution.
Neither the name of Intel Corporation nor the names of its contributors
shall be used to endorse or promote products derived from this Software
without specific prior written permission.
Intel hereby grants Recipient and Licensees a non-exclusive, worldwide,
royalty-free patent license under Licensed Patents to make, use, sell, offer
to sell, import and otherwise transfer the Software, if any, in source code
and object code form. This license shall include changes to the Software
that are error corrections or other minor changes to the Software that do
not add functionality or features when the Software is incorporated in any
version of an operating system that has been distributed under the GNU
General Public License 2.0 or later. This patent license shall apply to the
combination of the Software and any operating system licensed under the GNU
Public License version 2.0 or later if, at the time Intel provides the
Software to Recipient, such addition of the Software to the then publicly
available versions of such operating systems available under the GNU Public
License version 2.0 or later (whether in gold, beta or alpha form) causes
such combination to be covered by the Licensed Patents. The patent license
shall not apply to any other combinations which include the Software. NO
hardware per se is licensed hereunder.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR IT CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
ANY LOSS OF USE; DATA, OR PROFITS; OR BUSINESS INTERUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY, WHETHER IN 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.
*******************************************************************************/
/* e1000_mac.c
* Shared functions for accessing and configuring the MAC
*/
#include "e1000_mac.h"
#include "e1000_phy.h"
/******************************************************************************
* Raises the EEPROM's clock input.
*
* shared - Struct containing variables accessed by shared code
* eecd_reg - EECD's current value
*****************************************************************************/
static void
e1000_raise_clock(struct e1000_shared_adapter *shared,
uint32_t *eecd_reg)
{
/* Raise the clock input to the EEPROM (by setting the SK bit), and then
* wait 50 microseconds.
*/
*eecd_reg = *eecd_reg | E1000_EECD_SK;
E1000_WRITE_REG(shared, EECD, *eecd_reg);
usec_delay(50);
return;
}
/******************************************************************************
* Lowers the EEPROM's clock input.
*
* shared - Struct containing variables accessed by shared code
* eecd_reg - EECD's current value
*****************************************************************************/
static void
e1000_lower_clock(struct e1000_shared_adapter *shared,
uint32_t *eecd_reg)
{
/* Lower the clock input to the EEPROM (by clearing the SK bit), and then
* wait 50 microseconds.
*/
*eecd_reg = *eecd_reg & ~E1000_EECD_SK;
E1000_WRITE_REG(shared, EECD, *eecd_reg);
usec_delay(50);
return;
}
/******************************************************************************
* Shift data bits out to the EEPROM.
*
* shared - Struct containing variables accessed by shared code
* data - data to send to the EEPROM
* count - number of bits to shift out
*****************************************************************************/
static void
e1000_shift_out_bits(struct e1000_shared_adapter *shared,
uint16_t data,
uint16_t count)
{
uint32_t eecd_reg;
uint32_t mask;
/* We need to shift "count" bits out to the EEPROM. So, value in the
* "data" parameter will be shifted out to the EEPROM one bit at a time.
* In order to do this, "data" must be broken down into bits.
*/
mask = 0x01 << (count - 1);
eecd_reg = E1000_READ_REG(shared, EECD);
eecd_reg &= ~(E1000_EECD_DO | E1000_EECD_DI);
do {
/* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1",
* and then raising and then lowering the clock (the SK bit controls
* the clock input to the EEPROM). A "0" is shifted out to the EEPROM
* by setting "DI" to "0" and then raising and then lowering the clock.
*/
eecd_reg &= ~E1000_EECD_DI;
if(data & mask)
eecd_reg |= E1000_EECD_DI;
E1000_WRITE_REG(shared, EECD, eecd_reg);
usec_delay(50);
e1000_raise_clock(shared, &eecd_reg);
e1000_lower_clock(shared, &eecd_reg);
mask = mask >> 1;
} while(mask);
/* We leave the "DI" bit set to "0" when we leave this routine. */
eecd_reg &= ~E1000_EECD_DI;
E1000_WRITE_REG(shared, EECD, eecd_reg);
return;
}
/******************************************************************************
* Shift data bits in from the EEPROM
*
* shared - Struct containing variables accessed by shared code
*****************************************************************************/
static uint16_t
e1000_shift_in_bits(struct e1000_shared_adapter *shared)
{
uint32_t eecd_reg;
uint32_t i;
uint16_t data;
/* In order to read a register from the EEPROM, we need to shift 16 bits
* in from the EEPROM. Bits are "shifted in" by raising the clock input to
* the EEPROM (setting the SK bit), and then reading the value of the "DO"
* bit. During this "shifting in" process the "DI" bit should always be
* clear..
*/
eecd_reg = E1000_READ_REG(shared, EECD);
eecd_reg &= ~(E1000_EECD_DO | E1000_EECD_DI);
data = 0;
for(i = 0; i < 16; i++) {
data = data << 1;
e1000_raise_clock(shared, &eecd_reg);
eecd_reg = E1000_READ_REG(shared, EECD);
eecd_reg &= ~(E1000_EECD_DI);
if(eecd_reg & E1000_EECD_DO)
data |= 1;
e1000_lower_clock(shared, &eecd_reg);
}
return data;
}
/******************************************************************************
* Prepares EEPROM for access
*
* shared - Struct containing variables accessed by shared code
*
* Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This
* function should be called before issuing a command to the EEPROM.
*****************************************************************************/
static void
e1000_setup_eeprom(struct e1000_shared_adapter *shared)
{
uint32_t eecd_reg;
eecd_reg = E1000_READ_REG(shared, EECD);
/* Clear SK and DI */
eecd_reg &= ~(E1000_EECD_SK | E1000_EECD_DI);
E1000_WRITE_REG(shared, EECD, eecd_reg);
/* Set CS */
eecd_reg |= E1000_EECD_CS;
E1000_WRITE_REG(shared, EECD, eecd_reg);
return;
}
/******************************************************************************
* Returns EEPROM to a "standby" state
*
* shared - Struct containing variables accessed by shared code
*****************************************************************************/
static void
e1000_standby_eeprom(struct e1000_shared_adapter *shared)
{
uint32_t eecd_reg;
eecd_reg = E1000_READ_REG(shared, EECD);
/* Deselct EEPROM */
eecd_reg &= ~(E1000_EECD_CS | E1000_EECD_SK);
E1000_WRITE_REG(shared, EECD, eecd_reg);
usec_delay(50);
/* Clock high */
eecd_reg |= E1000_EECD_SK;
E1000_WRITE_REG(shared, EECD, eecd_reg);
usec_delay(50);
/* Select EEPROM */
eecd_reg |= E1000_EECD_CS;
E1000_WRITE_REG(shared, EECD, eecd_reg);
usec_delay(50);
/* Clock low */
eecd_reg &= ~E1000_EECD_SK;
E1000_WRITE_REG(shared, EECD, eecd_reg);
usec_delay(50);
return;
}
/******************************************************************************
* Forces the MAC's flow control settings.
*
* shared - Struct containing variables accessed by shared code
*
* Sets the TFCE and RFCE bits in the device control register to reflect
* the adapter settings. TFCE and RFCE need to be explicitly set by
* software when a Copper PHY is used because autonegotiation is managed
* by the PHY rather than the MAC. Software must also configure these
* bits when link is forced on a fiber connection.
*****************************************************************************/
static void
e1000_force_mac_fc(struct e1000_shared_adapter *shared)
{
uint32_t ctrl_reg;
DEBUGFUNC("e1000_force_mac_fc");
/* Get the current configuration of the Device Control Register */
ctrl_reg = E1000_READ_REG(shared, CTRL);
/* Because we didn't get link via the internal auto-negotiation
* mechanism (we either forced link or we got link via PHY
* auto-neg), we have to manually enable/disable transmit an
* receive flow control.
*
* The "Case" statement below enables/disable flow control
* according to the "shared->fc" parameter.
*
* The possible values of the "fc" parameter are:
* 0: Flow control is completely disabled
* 1: Rx flow control is enabled (we can receive pause
* frames but not send pause frames).
* 2: Tx flow control is enabled (we can send pause frames
* frames but we do not receive pause frames).
* 3: Both Rx and TX flow control (symmetric) is enabled.
* other: No other values should be possible at this point.
*/
switch (shared->fc) {
case e1000_fc_none:
ctrl_reg &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE));
break;
case e1000_fc_rx_pause:
ctrl_reg &= (~E1000_CTRL_TFCE);
ctrl_reg |= E1000_CTRL_RFCE;
break;
case e1000_fc_tx_pause:
ctrl_reg &= (~E1000_CTRL_RFCE);
ctrl_reg |= E1000_CTRL_TFCE;
break;
case e1000_fc_full:
ctrl_reg |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE);
break;
default:
DEBUGOUT("Flow control param set incorrectly\n");
ASSERT(0);
break;
}
/* Disable TX Flow Control for 82542 (rev 2.0) */
if(shared->mac_type == e1000_82542_rev2_0)
ctrl_reg &= (~E1000_CTRL_TFCE);
E1000_WRITE_REG(shared, CTRL, ctrl_reg);
return;
}
/******************************************************************************
* Reset the transmit and receive units; mask and clear all interrupts.
*
* shared - Struct containing variables accessed by shared code
*****************************************************************************/
void
e1000_adapter_stop(struct e1000_shared_adapter *shared)
{
uint32_t ctrl_reg;
uint32_t ctrl_ext_reg;
uint32_t icr_reg;
uint16_t pci_cmd_word;
DEBUGFUNC("e1000_shared_adapter_stop");
/* If we are stopped or resetting exit gracefully and wait to be
* started again before accessing the hardware.
*/
if(shared->adapter_stopped) {
DEBUGOUT("Exiting because the adapter is already stopped!!!\n");
return;
}
/* Set the Adapter Stopped flag so other driver functions stop
* touching the Hardware.
*/
shared->adapter_stopped = TRUE;
/* For 82542 (rev 2.0), disable MWI before issuing a device reset */
if(shared->mac_type == e1000_82542_rev2_0) {
if(shared->pci_cmd_word & CMD_MEM_WRT_INVALIDATE) {
DEBUGOUT("Disabling MWI on 82542 rev 2.0\n");
pci_cmd_word = shared->pci_cmd_word & ~CMD_MEM_WRT_INVALIDATE;
e1000_write_pci_cfg(shared, PCI_COMMAND_REGISTER, &pci_cmd_word);
}
}
/* Clear interrupt mask to stop board from generating interrupts */
DEBUGOUT("Masking off all interrupts\n");
E1000_WRITE_REG(shared, IMC, 0xffffffff);
/* Disable the Transmit and Receive units. Then delay to allow
* any pending transactions to complete before we hit the MAC with
* the global reset.
*/
E1000_WRITE_REG(shared, RCTL, 0);
E1000_WRITE_REG(shared, TCTL, E1000_TCTL_PSP);
/* The tbi_compatibility_on Flag must be cleared when Rctl is cleared. */
shared->tbi_compatibility_on = FALSE;
msec_delay(10);
/* Issue a global reset to the MAC. This will reset the chip's
* transmit, receive, DMA, and link units. It will not effect
* the current PCI configuration. The global reset bit is self-
* clearing, and should clear within a microsecond.
*/
DEBUGOUT("Issuing a global reset to MAC\n");
ctrl_reg = E1000_READ_REG(shared, CTRL);
E1000_WRITE_REG(shared, CTRL, (ctrl_reg | E1000_CTRL_RST));
/* Delay a few ms just to allow the reset to complete */
msec_delay(10);
#if DBG
/* Make sure the self-clearing global reset bit did self clear */
ctrl_reg = E1000_READ_REG(shared, CTRL);
ASSERT(!(ctrl_reg & E1000_CTRL_RST));
#endif
/* Force a reload from the EEPROM */
ctrl_ext_reg = E1000_READ_REG(shared, CTRL_EXT);
ctrl_ext_reg |= E1000_CTRL_EXT_EE_RST;
E1000_WRITE_REG(shared, CTRL_EXT, ctrl_ext_reg);
msec_delay(2);
/* Clear interrupt mask to stop board from generating interrupts */
DEBUGOUT("Masking off all interrupts\n");
E1000_WRITE_REG(shared, IMC, 0xffffffff);
/* Clear any pending interrupt events. */
icr_reg = E1000_READ_REG(shared, ICR);
/* If MWI was previously enabled, reenable it. */
if(shared->mac_type == e1000_82542_rev2_0) {
if(shared->pci_cmd_word & CMD_MEM_WRT_INVALIDATE) {
e1000_write_pci_cfg(shared,
PCI_COMMAND_REGISTER, &shared->pci_cmd_word);
}
}
return;
}
/******************************************************************************
* Performs basic configuration of the adapter.
*
* shared - Struct containing variables accessed by shared code
*
* Assumes that the controller has previously been reset and is in a
* post-reset uninitialized state. Initializes the receive address registers,
* multicast table, and VLAN filter table. Calls routines to setup link
* configuration and flow control settings. Clears all on-chip counters. Leaves
* the transmit and receive units disabled and uninitialized.
*****************************************************************************/
boolean_t
e1000_init_hw(struct e1000_shared_adapter *shared)
{
uint32_t status_reg;
uint32_t i;
uint16_t pci_cmd_word;
boolean_t status;
DEBUGFUNC("e1000_init_hw");
/* Set the Media Type and exit with error if it is not valid. */
if(shared->mac_type != e1000_82543) {
/* tbi_compatibility is only valid on 82543 */
shared->tbi_compatibility_en = FALSE;
}
if(shared->mac_type >= e1000_82543) {
status_reg = E1000_READ_REG(shared, STATUS);
if(status_reg & E1000_STATUS_TBIMODE) {
shared->media_type = e1000_media_type_fiber;
/* tbi_compatibility not valid on fiber */
shared->tbi_compatibility_en = FALSE;
} else {
shared->media_type = e1000_media_type_copper;
}
} else {
/* This is an 82542 (fiber only) */
shared->media_type = e1000_media_type_fiber;
}
/* Disabling VLAN filtering. */
DEBUGOUT("Initializing the IEEE VLAN\n");
E1000_WRITE_REG(shared, VET, 0);
e1000_clear_vfta(shared);
/* For 82542 (rev 2.0), disable MWI and put the receiver into reset */
if(shared->mac_type == e1000_82542_rev2_0) {
if(shared->pci_cmd_word & CMD_MEM_WRT_INVALIDATE) {
DEBUGOUT("Disabling MWI on 82542 rev 2.0\n");
pci_cmd_word = shared->pci_cmd_word & ~CMD_MEM_WRT_INVALIDATE;
e1000_write_pci_cfg(shared, PCI_COMMAND_REGISTER, &pci_cmd_word);
}
E1000_WRITE_REG(shared, RCTL, E1000_RCTL_RST);
msec_delay(5);
}
/* Setup the receive address. This involves initializing all of the Receive
* Address Registers (RARs 0 - 15).
*/
e1000_init_rx_addrs(shared);
/* For 82542 (rev 2.0), take the receiver out of reset and enable MWI */
if(shared->mac_type == e1000_82542_rev2_0) {
E1000_WRITE_REG(shared, RCTL, 0);
msec_delay(1);
if(shared->pci_cmd_word & CMD_MEM_WRT_INVALIDATE) {
e1000_write_pci_cfg(shared,
PCI_COMMAND_REGISTER, &shared->pci_cmd_word);
}
}
/* Zero out the Multicast HASH table */
DEBUGOUT("Zeroing the MTA\n");
for(i = 0; i < E1000_MC_TBL_SIZE; i++)
E1000_WRITE_REG_ARRAY(shared, MTA, i, 0);
/* Call a subroutine to configure the link and setup flow control. */
status = e1000_setup_fc_and_link(shared);
/* Clear all of the statistics registers (clear on read). It is
* important that we do this after we have tried to establish link
* because the symbol error count will increment wildly if there
* is no link.
*/
e1000_clear_hw_cntrs(shared);
return (status);
}
/******************************************************************************
* Initializes receive address filters.
*
* shared - Struct containing variables accessed by shared code
*
* Places the MAC address in receive address register 0 and clears the rest
* of the receive addresss registers. Clears the multicast table. Assumes
* the receiver is in reset when the routine is called.
*****************************************************************************/
void
e1000_init_rx_addrs(struct e1000_shared_adapter *shared)
{
uint32_t i;
uint32_t addr_low;
uint32_t addr_high;
DEBUGFUNC("e1000_init_rx_addrs");
/* Setup the receive address. */
DEBUGOUT("Programming MAC Address into RAR[0]\n");
addr_low = (shared->mac_addr[0] |
(shared->mac_addr[1] << 8) |
(shared->mac_addr[2] << 16) | (shared->mac_addr[3] << 24));
addr_high = (shared->mac_addr[4] |
(shared->mac_addr[5] << 8) | E1000_RAH_AV);
E1000_WRITE_REG_ARRAY(shared, RA, 0, addr_low);
E1000_WRITE_REG_ARRAY(shared, RA, 1, addr_high);
/* Zero out the other 15 receive addresses. */
DEBUGOUT("Clearing RAR[1-15]\n");
for(i = 1; i < E1000_RAR_ENTRIES; i++) {
E1000_WRITE_REG_ARRAY(shared, RA, (i << 1), 0);
E1000_WRITE_REG_ARRAY(shared, RA, ((i << 1) + 1), 0);
}
return;
}
/******************************************************************************
* Updates the MAC's list of multicast addresses.
*
* shared - Struct containing variables accessed by shared code
* mc_addr_list - the list of new multicast addresses
* mc_addr_count - number of addresses
* pad - number of bytes between addresses in the list
*
* The given list replaces any existing list. Clears the last 15 receive
* address registers and the multicast table. Uses receive address registers
* for the first 15 multicast addresses, and hashes the rest into the
* multicast table.
*****************************************************************************/
void
e1000_mc_addr_list_update(struct e1000_shared_adapter *shared,
uint8_t *mc_addr_list,
uint32_t mc_addr_count,
uint32_t pad)
{
uint32_t hash_value;
uint32_t i;
uint32_t rar_used_count = 1; /* RAR[0] is used for our MAC address */
DEBUGFUNC("e1000_mc_addr_list_update");
/* Set the new number of MC addresses that we are being requested to use. */
shared->num_mc_addrs = mc_addr_count;
/* Clear RAR[1-15] */
DEBUGOUT(" Clearing RAR[1-15]\n");
for(i = rar_used_count; i < E1000_RAR_ENTRIES; i++) {
E1000_WRITE_REG_ARRAY(shared, RA, (i << 1), 0);
E1000_WRITE_REG_ARRAY(shared, RA, ((i << 1) + 1), 0);
}
/* Clear the MTA */
DEBUGOUT(" Clearing MTA\n");
for(i = 0; i < E1000_NUM_MTA_REGISTERS; i++) {
E1000_WRITE_REG_ARRAY(shared, MTA, i, 0);
}
/* Add the new addresses */
for(i = 0; i < mc_addr_count; i++) {
DEBUGOUT(" Adding the multicast addresses:\n");
DEBUGOUT7(" MC Addr #%d =%.2X %.2X %.2X %.2X %.2X %.2X\n", i,
mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad)],
mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad) + 1],
mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad) + 2],
mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad) + 3],
mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad) + 4],
mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad) + 5]);
hash_value = e1000_hash_mc_addr(shared,
mc_addr_list +
(i * (ETH_LENGTH_OF_ADDRESS + pad)));
DEBUGOUT1(" Hash value = 0x%03X\n", hash_value);
/* Place this multicast address in the RAR if there is room, *
* else put it in the MTA
*/
if(rar_used_count < E1000_RAR_ENTRIES) {
e1000_rar_set(shared,
mc_addr_list + (i * (ETH_LENGTH_OF_ADDRESS + pad)),
rar_used_count);
rar_used_count++;
} else {
e1000_mta_set(shared, hash_value);
}
}
DEBUGOUT("MC Update Complete\n");
return;
}
/******************************************************************************
* Hashes an address to determine its location in the multicast table
*
* shared - Struct containing variables accessed by shared code
* mc_addr - the multicast address to hash
*****************************************************************************/
uint32_t
e1000_hash_mc_addr(struct e1000_shared_adapter *shared,
uint8_t *mc_addr)
{
uint32_t hash_value = 0;
/* The portion of the address that is used for the hash table is
* determined by the mc_filter_type setting.
*/
switch (shared->mc_filter_type) {
/* [0] [1] [2] [3] [4] [5]
* 01 AA 00 12 34 56
* LSB MSB - According to H/W docs */
case 0:
/* [47:36] i.e. 0x563 for above example address */
hash_value = ((mc_addr[4] >> 4) | (((uint16_t) mc_addr[5]) << 4));
break;
case 1: /* [46:35] i.e. 0xAC6 for above example address */
hash_value = ((mc_addr[4] >> 3) | (((uint16_t) mc_addr[5]) << 5));
break;
case 2: /* [45:34] i.e. 0x5D8 for above example address */
hash_value = ((mc_addr[4] >> 2) | (((uint16_t) mc_addr[5]) << 6));
break;
case 3: /* [43:32] i.e. 0x634 for above example address */
hash_value = ((mc_addr[4]) | (((uint16_t) mc_addr[5]) << 8));
break;
}
hash_value &= 0xFFF;
return (hash_value);
}
/******************************************************************************
* Sets the bit in the multicast table corresponding to the hash value.
*
* shared - Struct containing variables accessed by shared code
* hash_value - Multicast address hash value
*****************************************************************************/
void
e1000_mta_set(struct e1000_shared_adapter *shared,
uint32_t hash_value)
{
uint32_t hash_bit, hash_reg;
uint32_t mta_reg;
uint32_t temp;
/* The MTA is a register array of 128 32-bit registers.
* It is treated like an array of 4096 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 >> 5) & 0x7F;
hash_bit = hash_value & 0x1F;
mta_reg = E1000_READ_REG_ARRAY(shared, MTA, hash_reg);
mta_reg |= (1 << hash_bit);
/* If we are on an 82544 and we are trying to write an odd offset
* in the MTA, save off the previous entry before writing and
* restore the old value after writing.
*/
if((shared->mac_type == e1000_82544) && ((hash_reg & 0x1) == 1)) {
temp = E1000_READ_REG_ARRAY(shared, MTA, (hash_reg - 1));
E1000_WRITE_REG_ARRAY(shared, MTA, hash_reg, mta_reg);
E1000_WRITE_REG_ARRAY(shared, MTA, (hash_reg - 1), temp);
} else {
E1000_WRITE_REG_ARRAY(shared, MTA, hash_reg, mta_reg);
}
return;
}
/******************************************************************************
* Puts an ethernet address into a receive address register.
*
* shared - Struct containing variables accessed by shared code
* addr - Address to put into receive address register
* index - Receive address register to write
*****************************************************************************/
void
e1000_rar_set(struct e1000_shared_adapter *shared,
uint8_t *addr,
uint32_t index)
{
uint32_t rar_low, rar_high;
/* HW expects these in little endian so we reverse the byte order
* from network order (big endian) to little endian
*/
rar_low = ((uint32_t) addr[0] |
((uint32_t) addr[1] << 8) |
((uint32_t) addr[2] << 16) | ((uint32_t) addr[3] << 24));
rar_high = ((uint32_t) addr[4] | ((uint32_t) addr[5] << 8) | E1000_RAH_AV);
E1000_WRITE_REG_ARRAY(shared, RA, (index << 1), rar_low);
E1000_WRITE_REG_ARRAY(shared, RA, ((index << 1) + 1), rar_high);
return;
}
/******************************************************************************
* Writes a value to the specified offset in the VLAN filter table.
*
* shared - Struct containing variables accessed by shared code
* offset - Offset in VLAN filer table to write
* value - Value to write into VLAN filter table
*****************************************************************************/
void
e1000_write_vfta(struct e1000_shared_adapter *shared,
uint32_t offset,
uint32_t value)
{
uint32_t temp;
if((shared->mac_type == e1000_82544) && ((offset & 0x1) == 1)) {
temp = E1000_READ_REG_ARRAY(shared, VFTA, (offset - 1));
E1000_WRITE_REG_ARRAY(shared, VFTA, offset, value);
E1000_WRITE_REG_ARRAY(shared, VFTA, (offset - 1), temp);
} else {
E1000_WRITE_REG_ARRAY(shared, VFTA, offset, value);
}
return;
}
/******************************************************************************
* Clears the VLAN filer table
*
* shared - Struct containing variables accessed by shared code
*****************************************************************************/
void
e1000_clear_vfta(struct e1000_shared_adapter *shared)
{
uint32_t offset;
for(offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++)
E1000_WRITE_REG_ARRAY(shared, VFTA, offset, 0);
return;
}
/******************************************************************************
* Configures flow control and link settings.
*
* shared - Struct containing variables accessed by shared code
*
* Determines which flow control settings to use. Calls the apropriate media-
* specific link configuration function. Configures the flow control settings.
* Assuming the adapter has a valid link partner, a valid link should be
* established. Assumes the hardware has previously been reset and the
* transmitter and receiver are not enabled.
*****************************************************************************/
boolean_t
e1000_setup_fc_and_link(struct e1000_shared_adapter *shared)
{
uint32_t ctrl_reg;
uint32_t eecd_reg;
uint32_t ctrl_ext_reg;
boolean_t status = TRUE;
DEBUGFUNC("e1000_setup_fc_and_link");
/* Read the SWDPIO bits and the ILOS bit out of word 0x0A in the
* EEPROM. Store these bits in a variable that we will later write
* to the Device Control Register (CTRL).
*/
eecd_reg = e1000_read_eeprom(shared, EEPROM_INIT_CONTROL1_REG);
ctrl_reg =
(((eecd_reg & EEPROM_WORD0A_SWDPIO) << SWDPIO_SHIFT) |
((eecd_reg & EEPROM_WORD0A_ILOS) << ILOS_SHIFT));
/* Set the PCI priority bit correctly in the CTRL register. This
* determines if the adapter gives priority to receives, or if it
* gives equal priority to transmits and receives.
*/
if(shared->dma_fairness)
ctrl_reg |= E1000_CTRL_PRIOR;
/* Read and store word 0x0F of the EEPROM. This word contains bits
* that determine the hardware's default PAUSE (flow control) mode,
* a bit that determines whether the HW defaults to enabling or
* disabling auto-negotiation, and the direction of the
* SW defined pins. If there is no SW over-ride of the flow
* control setting, then the variable shared->fc will
* be initialized based on a value in the EEPROM.
*/
eecd_reg = e1000_read_eeprom(shared, EEPROM_INIT_CONTROL2_REG);
if(shared->fc > e1000_fc_full) {
if((eecd_reg & EEPROM_WORD0F_PAUSE_MASK) == 0)
shared->fc = e1000_fc_none;
else if((eecd_reg & EEPROM_WORD0F_PAUSE_MASK) == EEPROM_WORD0F_ASM_DIR)
shared->fc = e1000_fc_tx_pause;
else
shared->fc = e1000_fc_full;
}
/* We want to save off the original Flow Control configuration just
* in case we get disconnected and then reconnected into a different
* hub or switch with different Flow Control capabilities.
*/
shared->original_fc = shared->fc;
if(shared->mac_type == e1000_82542_rev2_0)
shared->fc &= (~e1000_fc_tx_pause);
if((shared->mac_type < e1000_82543) && (shared->report_tx_early == 1))
shared->fc &= (~e1000_fc_rx_pause);
DEBUGOUT1("After fix-ups FlowControl is now = %x\n", shared->fc);
/* Take the 4 bits from EEPROM word 0x0F that determine the initial
* polarity value for the SW controlled pins, and setup the
* Extended Device Control reg with that info.
* This is needed because one of the SW controlled pins is used for
* signal detection. So this should be done before e1000_setup_pcs_link()
* or e1000_phy_setup() is called.
*/
if(shared->mac_type == e1000_82543) {
ctrl_ext_reg = ((eecd_reg & EEPROM_WORD0F_SWPDIO_EXT)
<< SWDPIO__EXT_SHIFT);
E1000_WRITE_REG(shared, CTRL_EXT, ctrl_ext_reg);
}
/* Call the necessary subroutine to configure the link. */
if(shared->media_type == e1000_media_type_fiber)
status = e1000_setup_pcs_link(shared, ctrl_reg);
else
status = e1000_phy_setup(shared, ctrl_reg);
/* Initialize the flow control address, type, and PAUSE timer
* registers to their default values. This is done even if flow
* control is disabled, because it does not hurt anything to
* initialize these registers.
*/
DEBUGOUT("Initializing the Flow Control address, type and timer regs\n");
E1000_WRITE_REG(shared, FCAL, FLOW_CONTROL_ADDRESS_LOW);
E1000_WRITE_REG(shared, FCAH, FLOW_CONTROL_ADDRESS_HIGH);
E1000_WRITE_REG(shared, FCT, FLOW_CONTROL_TYPE);
E1000_WRITE_REG(shared, FCTTV, shared->fc_pause_time);
/* Set the flow control receive threshold registers. Normally,
* these registers will be set to a default threshold that may be
* adjusted later by the driver's runtime code. However, if the
* ability to transmit pause frames in not enabled, then these
* registers will be set to 0.
*/
if(!(shared->fc & e1000_fc_tx_pause)) {
E1000_WRITE_REG(shared, FCRTL, 0);
E1000_WRITE_REG(shared, FCRTH, 0);
} else {
/* We need to set up the Receive Threshold high and low water marks
* as well as (optionally) enabling the transmission of XON frames.
*/
if(shared->fc_send_xon) {
E1000_WRITE_REG(shared, FCRTL,
(shared->fc_low_water | E1000_FCRTL_XONE));
E1000_WRITE_REG(shared, FCRTH, shared->fc_high_water);
} else {
E1000_WRITE_REG(shared, FCRTL, shared->fc_low_water);
E1000_WRITE_REG(shared, FCRTH, shared->fc_high_water);
}
}
return (status);
}
/******************************************************************************
* Sets up link for a fiber based adapter
*
* shared - Struct containing variables accessed by shared code
* ctrl_reg - Current value of the device control register
*
* Manipulates Physical Coding Sublayer functions in order to configure
* link. Assumes the hardware has been previously reset and the transmitter
* and receiver are not enabled.
*****************************************************************************/
boolean_t
e1000_setup_pcs_link(struct e1000_shared_adapter *shared,
uint32_t ctrl_reg)
{
uint32_t status_reg;
uint32_t tctl_reg;
uint32_t txcw_reg = 0;
uint32_t i;
DEBUGFUNC("e1000_setup_pcs_link");
/* Setup the collsion distance. Since this is configuring the
* TBI it is assumed that we are in Full Duplex.
*/
tctl_reg = E1000_READ_REG(shared, TCTL);
i = E1000_FDX_COLLISION_DISTANCE;
i <<= E1000_COLD_SHIFT;
tctl_reg |= i;
E1000_WRITE_REG(shared, TCTL, tctl_reg);
/* Check for a software override of the flow control settings, and
* setup the device accordingly. If auto-negotiation is enabled,
* then software will have to set the "PAUSE" bits to the correct
* value in the Tranmsit Config Word Register (TXCW) and re-start
* auto-negotiation. However, if auto-negotiation is disabled,
* then software will have to manually configure the two flow
* control enable bits in the CTRL register.
*
* The possible values of the "fc" parameter are:
* 0: Flow control is completely disabled
* 1: Rx flow control is enabled (we can receive pause frames
* but not send pause frames).
* 2: Tx flow control is enabled (we can send pause frames
* but we do not support receiving pause frames).
* 3: Both Rx and TX flow control (symmetric) are enabled.
* other: No software override. The flow control configuration
* in the EEPROM is used.
*/
switch (shared->fc) {
case e1000_fc_none: /* 0 */
/* Flow control (RX & TX) is completely disabled by a
* software over-ride.
*/
txcw_reg = (E1000_TXCW_ANE | E1000_TXCW_FD);
break;
case e1000_fc_rx_pause: /* 1 */
/* RX Flow control is enabled, and TX Flow control is
* disabled, by a software over-ride.
*/
/* Since there really isn't a way to advertise that we are
* capable of RX Pause ONLY, we will advertise that we
* support both symmetric and asymmetric RX PAUSE. Later
* we will disable the adapter's ability to send PAUSE
* frames.
*/
txcw_reg = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
break;
case e1000_fc_tx_pause: /* 2 */
/* TX Flow control is enabled, and RX Flow control is
* disabled, by a software over-ride.
*/
txcw_reg = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR);
break;
case e1000_fc_full: /* 3 */
/* Flow control (both RX and TX) is enabled by a software
* over-ride.
*/
txcw_reg = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
break;
default:
/* We should never get here. The value should be 0-3. */
DEBUGOUT("Flow control param set incorrectly\n");
ASSERT(0);
break;
}
/* Since auto-negotiation is enabled, take the link out of reset.
* (the link will be in reset, because we previously reset the
* chip). This will restart auto-negotiation. If auto-neogtiation
* is successful then the link-up status bit will be set and the
* flow control enable bits (RFCE and TFCE) will be set according
* to their negotiated value.
*/
DEBUGOUT("Auto-negotiation enabled\n");
E1000_WRITE_REG(shared, TXCW, txcw_reg);
E1000_WRITE_REG(shared, CTRL, ctrl_reg);
shared->txcw_reg = txcw_reg;
msec_delay(1);
/* If we have a signal then poll for a "Link-Up" indication in the
* Device Status Register. Time-out if a link isn't seen in 500
* milliseconds seconds (Auto-negotiation should complete in less
* than 500 milliseconds even if the other end is doing it in SW).
*/
if(!(E1000_READ_REG(shared, CTRL) & E1000_CTRL_SWDPIN1)) {
DEBUGOUT("Looking for Link\n");
for(i = 0; i < (LINK_UP_TIMEOUT / 10); i++) {
msec_delay(10);
status_reg = E1000_READ_REG(shared, STATUS);
if(status_reg & E1000_STATUS_LU)
break;
}
if(i == (LINK_UP_TIMEOUT / 10)) {
/* AutoNeg failed to achieve a link, so we'll call the
* "CheckForLink" routine. This routine will force the link
* up if we have "signal-detect". This will allow us to
* communicate with non-autonegotiating link partners.
*/
DEBUGOUT("Never got a valid link from auto-neg!!!\n");
shared->autoneg_failed = 1;
e1000_check_for_link(shared);
shared->autoneg_failed = 0;
} else {
shared->autoneg_failed = 0;
DEBUGOUT("Valid Link Found\n");
}
} else {
DEBUGOUT("No Signal Detected\n");
}
return (TRUE);
}
/******************************************************************************
* Configures flow control settings after link is established
*
* shared - Struct containing variables accessed by shared code
*
* Should be called immediately after a valid link has been established.
* Forces MAC flow control settings if link was forced. When in MII/GMII mode
* and autonegotiation is enabled, the MAC flow control settings will be set
* based on the flow control negotiated by the PHY. In TBI mode, the TFCE
* and RFCE bits will be automaticaly set to the negotiated flow control mode.
*****************************************************************************/
void
e1000_config_fc_after_link_up(struct e1000_shared_adapter *shared)
{
uint16_t mii_status_reg;
uint16_t mii_nway_adv_reg;
uint16_t mii_nway_lp_ability_reg;
uint16_t speed;
uint16_t duplex;
DEBUGFUNC("e1000_config_fc_after_link_up");
/* Check for the case where we have fiber media and auto-neg failed
* so we had to force link. In this case, we need to force the
* configuration of the MAC to match the "fc" parameter.
*/
if(((shared->media_type == e1000_media_type_fiber)
&& (shared->autoneg_failed))
|| ((shared->media_type == e1000_media_type_copper)
&& (!shared->autoneg))) {
e1000_force_mac_fc(shared);
}
/* Check for the case where we have copper media and auto-neg is
* enabled. In this case, we need to check and see if Auto-Neg
* has completed, and if so, how the PHY and link partner has
* flow control configured.
*/
if((shared->media_type == e1000_media_type_copper) && shared->autoneg) {
/* Read the MII Status Register and check to see if AutoNeg
* has completed. We read this twice because this reg has
* some "sticky" (latched) bits.
*/
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
if(mii_status_reg & MII_SR_AUTONEG_COMPLETE) {
/* The AutoNeg process has completed, so we now need to
* read both the Auto Negotiation Advertisement Register
* (Address 4) and the Auto_Negotiation Base Page Ability
* Register (Address 5) to determine how flow control was
* negotiated.
*/
mii_nway_adv_reg = e1000_read_phy_reg(shared,
PHY_AUTONEG_ADV);
mii_nway_lp_ability_reg = e1000_read_phy_reg(shared,
PHY_LP_ABILITY);
/* Two bits in the Auto Negotiation Advertisement Register
* (Address 4) and two bits in the Auto Negotiation Base
* Page Ability Register (Address 5) determine flow control
* for both the PHY and the link partner. The following
* table, taken out of the IEEE 802.3ab/D6.0 dated March 25,
* 1999, describes these PAUSE resolution bits and how flow
* control is determined based upon these settings.
* NOTE: DC = Don't Care
*
* LOCAL DEVICE | LINK PARTNER
* PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution
*-------|---------|-------|---------|--------------------
* 0 | 0 | DC | DC | e1000_fc_none
* 0 | 1 | 0 | DC | e1000_fc_none
* 0 | 1 | 1 | 0 | e1000_fc_none
* 0 | 1 | 1 | 1 | e1000_fc_tx_pause
* 1 | 0 | 0 | DC | e1000_fc_none
* 1 | DC | 1 | DC | e1000_fc_full
* 1 | 1 | 0 | 0 | e1000_fc_none
* 1 | 1 | 0 | 1 | e1000_fc_rx_pause
*
*/
/* Are both PAUSE bits set to 1? If so, this implies
* Symmetric Flow Control is enabled at both ends. The
* ASM_DIR bits are irrelevant per the spec.
*
* For Symmetric Flow Control:
*
* LOCAL DEVICE | LINK PARTNER
* PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
*-------|---------|-------|---------|--------------------
* 1 | DC | 1 | DC | e1000_fc_full
*
*/
if((mii_nway_adv_reg & NWAY_AR_PAUSE) &&
(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) {
/* Now we need to check if the user selected RX ONLY
* of pause frames. In this case, we had to advertise
* FULL flow control because we could not advertise RX
* ONLY. Hence, we must now check to see if we need to
* turn OFF the TRANSMISSION of PAUSE frames.
*/
if(shared->original_fc == e1000_fc_full) {
shared->fc = e1000_fc_full;
DEBUGOUT("Flow Control = FULL.\r\n");
} else {
shared->fc = e1000_fc_rx_pause;
DEBUGOUT("Flow Control = RX PAUSE frames only.\r\n");
}
}
/* For receiving PAUSE frames ONLY.
*
* LOCAL DEVICE | LINK PARTNER
* PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
*-------|---------|-------|---------|--------------------
* 0 | 1 | 1 | 1 | e1000_fc_tx_pause
*
*/
else if(!(mii_nway_adv_reg & NWAY_AR_PAUSE) &&
(mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
(mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) {
shared->fc = e1000_fc_tx_pause;
DEBUGOUT("Flow Control = TX PAUSE frames only.\r\n");
}
/* For transmitting PAUSE frames ONLY.
*
* LOCAL DEVICE | LINK PARTNER
* PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
*-------|---------|-------|---------|--------------------
* 1 | 1 | 0 | 1 | e1000_fc_rx_pause
*
*/
else if((mii_nway_adv_reg & NWAY_AR_PAUSE) &&
(mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
!(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
(mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) {
shared->fc = e1000_fc_rx_pause;
DEBUGOUT("Flow Control = RX PAUSE frames only.\r\n");
}
/* Per the IEEE spec, at this point flow control should be
* disabled. However, we want to consider that we could
* be connected to a legacy switch that doesn't advertise
* desired flow control, but can be forced on the link
* partner. So if we advertised no flow control, that is
* what we will resolve to. If we advertised some kind of
* receive capability (Rx Pause Only or Full Flow Control)
* and the link partner advertised none, we will configure
* ourselves to enable Rx Flow Control only. We can do
* this safely for two reasons: If the link partner really
* didn't want flow control enabled, and we enable Rx, no
* harm done since we won't be receiving any PAUSE frames
* anyway. If the intent on the link partner was to have
* flow control enabled, then by us enabling RX only, we
* can at least receive pause frames and process them.
* This is a good idea because in most cases, since we are
* predominantly a server NIC, more times than not we will
* be asked to delay transmission of packets than asking
* our link partner to pause transmission of frames.
*/
else if(shared->original_fc == e1000_fc_none ||
shared->original_fc == e1000_fc_tx_pause) {
shared->fc = e1000_fc_none;
DEBUGOUT("Flow Control = NONE.\r\n");
} else {
shared->fc = e1000_fc_rx_pause;
DEBUGOUT("Flow Control = RX PAUSE frames only.\r\n");
}
/* Now we need to do one last check... If we auto-
* negotiated to HALF DUPLEX, flow control should not be
* enabled per IEEE 802.3 spec.
*/
e1000_get_speed_and_duplex(shared, &speed, &duplex);
if(duplex == HALF_DUPLEX)
shared->fc = e1000_fc_none;
/* Now we call a subroutine to actually force the MAC
* controller to use the correct flow control settings.
*/
e1000_force_mac_fc(shared);
} else {
DEBUGOUT("Copper PHY and Auto Neg has not completed.\r\n");
}
}
return;
}
/******************************************************************************
* Checks to see if the link status of the hardware has changed.
*
* shared - Struct containing variables accessed by shared code
*
* Called by any function that needs to check the link status of the adapter.
*****************************************************************************/
void
e1000_check_for_link(struct e1000_shared_adapter *shared)
{
uint32_t rxcw_reg;
uint32_t ctrl_reg;
uint32_t status_reg;
uint32_t rctl_reg;
uint16_t phy_data;
uint16_t lp_capability;
DEBUGFUNC("e1000_check_for_link");
ctrl_reg = E1000_READ_REG(shared, CTRL);
status_reg = E1000_READ_REG(shared, STATUS);
rxcw_reg = E1000_READ_REG(shared, RXCW);
/* If we have a copper PHY then we only want to go out to the PHY
* registers to see if Auto-Neg has completed and/or if our link
* status has changed. The get_link_status flag will be set if we
* receive a Link Status Change interrupt or we have Rx Sequence
* Errors.
*/
if(shared->media_type == e1000_media_type_copper
&& shared->get_link_status) {
/* First we want to see if the MII Status Register reports
* link. If so, then we want to get the current speed/duplex
* of the PHY.
* Read the register twice since the link bit is sticky.
*/
phy_data = e1000_read_phy_reg(shared, PHY_STATUS);
phy_data = e1000_read_phy_reg(shared, PHY_STATUS);
if(phy_data & MII_SR_LINK_STATUS) {
shared->get_link_status = FALSE;
} else {
DEBUGOUT("**** CFL - No link detected. ****\r\n");
return;
}
/* If we are forcing speed/duplex, then we simply return since
* we have already determined whether we have link or not.
*/
if(!shared->autoneg) {
return;
}
switch (shared->phy_id) {
case M88E1000_12_PHY_ID:
case M88E1000_14_PHY_ID:
case M88E1000_I_PHY_ID:
/* We have a M88E1000 PHY and Auto-Neg is enabled. If we
* have Si on board that is 82544 or newer, Auto
* Speed Detection takes care of MAC speed/duplex
* configuration. So we only need to configure Collision
* Distance in the MAC. Otherwise, we need to force
* speed/duplex on the MAC to the current PHY speed/duplex
* settings.
*/
if(shared->mac_type >= e1000_82544) {
DEBUGOUT("CFL - Auto-Neg complete.");
DEBUGOUT("Configuring Collision Distance.");
e1000_config_collision_dist(shared);
} else {
/* Read the Phy Specific Status register to get the
* resolved speed/duplex settings. Then call
* e1000_config_mac_to_phy which will retrieve
* PHY register information and configure the MAC to
* equal the negotiated speed/duplex.
*/
phy_data = e1000_read_phy_reg(shared,
M88E1000_PHY_SPEC_STATUS);
DEBUGOUT1("CFL - Auto-Neg complete. phy_data = %x\r\n",
phy_data);
e1000_config_mac_to_phy(shared, phy_data);
}
/* Configure Flow Control now that Auto-Neg has completed.
* We need to first restore the users desired Flow
* Control setting since we may have had to re-autoneg
* with a different link partner.
*/
e1000_config_fc_after_link_up(shared);
break;
default:
DEBUGOUT("CFL - Invalid PHY detected.\r\n");
} /* end switch statement */
/* At this point we know that we are on copper, link is up,
* and we are auto-neg'd. These are pre-conditions for checking
* the link parter capabilities register. We use the link partner
* capabilities to determine if TBI Compatibility needs to be turned on
* or turned off. If the link partner advertises any speed in addition
* to Gigabit, then we assume that they are GMII-based and TBI
* compatibility is not needed.
* If no other speeds are advertised, then we assume the link partner
* is TBI-based and we turn on TBI Compatibility.
*/
if(shared->tbi_compatibility_en) {
lp_capability = e1000_read_phy_reg(shared, PHY_LP_ABILITY);
if(lp_capability & (NWAY_LPAR_10T_HD_CAPS |
NWAY_LPAR_10T_FD_CAPS |
NWAY_LPAR_100TX_HD_CAPS |
NWAY_LPAR_100TX_FD_CAPS |
NWAY_LPAR_100T4_CAPS)) {
/* If our link partner advertises below Gig, then they do not
* need the special Tbi Compatibility mode.
*/
if(shared->tbi_compatibility_on) {
/* If we previously were in the mode, turn it off, now. */
rctl_reg = E1000_READ_REG(shared, RCTL);
rctl_reg &= ~E1000_RCTL_SBP;
E1000_WRITE_REG(shared, RCTL, rctl_reg);
shared->tbi_compatibility_on = FALSE;
}
} else {
/* If the mode is was previously off, turn it on.
* For compatibility with a suspected Tbi link partners,
* we will store bad packets.
* (Certain frames have an additional byte on the end and will
* look like CRC errors to to the hardware).
*/
if(!shared->tbi_compatibility_on) {
shared->tbi_compatibility_on = TRUE;
rctl_reg = E1000_READ_REG(shared, RCTL);
rctl_reg |= E1000_RCTL_SBP;
E1000_WRITE_REG(shared, RCTL, rctl_reg);
}
}
}
} /* end if e1000_media_type_copper statement */
/* If we don't have link (auto-negotiation failed or link partner
* cannot auto-negotiate) and the cable is plugged in since we don't
* have Loss-Of-Signal (we HAVE a signal) and our link partner is
* not trying to AutoNeg with us (we are receiving idles/data
* then we need to force our link to connect to a non
* auto-negotiating link partner. We also need to give
* auto-negotiation time to complete in case the cable was just
* plugged in. The autoneg_failed flag does this.
*/
else if((shared->media_type == e1000_media_type_fiber) && /* Fiber PHY */
(!(status_reg & E1000_STATUS_LU)) && /* no link and */
(!(ctrl_reg & E1000_CTRL_SWDPIN1)) && /* we have signal */
(!(rxcw_reg & E1000_RXCW_C))) { /* and rxing idle/data */
if(shared->autoneg_failed == 0) { /* given AutoNeg time */
shared->autoneg_failed = 1;
return;
}
DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\r\n");
/* Disable auto-negotiation in the TXCW register */
E1000_WRITE_REG(shared, TXCW, (shared->txcw_reg & ~E1000_TXCW_ANE));
/* Force link-up and also force full-duplex. */
ctrl_reg = E1000_READ_REG(shared, CTRL);
ctrl_reg |= (E1000_CTRL_SLU | E1000_CTRL_FD);
E1000_WRITE_REG(shared, CTRL, ctrl_reg);
/* Configure Flow Control after forcing link up. */
e1000_config_fc_after_link_up(shared);
} else if((shared->media_type == e1000_media_type_fiber) && /* Fiber */
(ctrl_reg & E1000_CTRL_SLU) && /* we have forced link */
(rxcw_reg & E1000_RXCW_C)) { /* and Rxing /C/ ordered sets */
/* If we are forcing link and we are receiving /C/ ordered sets,
* then re-enable auto-negotiation in the RXCW register and
* disable forced link in the Device Control register in an attempt
* to AutoNeg with our link partner.
*/
DEBUGOUT("RXing /C/, enable AutoNeg and stop forcing link.\r\n");
/* Enable auto-negotiation in the TXCW register and stop
* forcing link.
*/
E1000_WRITE_REG(shared, TXCW, shared->txcw_reg);
E1000_WRITE_REG(shared, CTRL, (ctrl_reg & ~E1000_CTRL_SLU));
}
return;
}
/******************************************************************************
* Clears all hardware statistics counters.
*
* shared - Struct containing variables accessed by shared code
*****************************************************************************/
void
e1000_clear_hw_cntrs(struct e1000_shared_adapter *shared)
{
volatile uint32_t temp_reg;
DEBUGFUNC("e1000_clear_hw_cntrs");
/* if we are stopped or resetting exit gracefully */
if(shared->adapter_stopped) {
DEBUGOUT("Exiting because the adapter is stopped!!!\n");
return;
}
temp_reg = E1000_READ_REG(shared, CRCERRS);
temp_reg = E1000_READ_REG(shared, SYMERRS);
temp_reg = E1000_READ_REG(shared, MPC);
temp_reg = E1000_READ_REG(shared, SCC);
temp_reg = E1000_READ_REG(shared, ECOL);
temp_reg = E1000_READ_REG(shared, MCC);
temp_reg = E1000_READ_REG(shared, LATECOL);
temp_reg = E1000_READ_REG(shared, COLC);
temp_reg = E1000_READ_REG(shared, DC);
temp_reg = E1000_READ_REG(shared, SEC);
temp_reg = E1000_READ_REG(shared, RLEC);
temp_reg = E1000_READ_REG(shared, XONRXC);
temp_reg = E1000_READ_REG(shared, XONTXC);
temp_reg = E1000_READ_REG(shared, XOFFRXC);
temp_reg = E1000_READ_REG(shared, XOFFTXC);
temp_reg = E1000_READ_REG(shared, FCRUC);
temp_reg = E1000_READ_REG(shared, PRC64);
temp_reg = E1000_READ_REG(shared, PRC127);
temp_reg = E1000_READ_REG(shared, PRC255);
temp_reg = E1000_READ_REG(shared, PRC511);
temp_reg = E1000_READ_REG(shared, PRC1023);
temp_reg = E1000_READ_REG(shared, PRC1522);
temp_reg = E1000_READ_REG(shared, GPRC);
temp_reg = E1000_READ_REG(shared, BPRC);
temp_reg = E1000_READ_REG(shared, MPRC);
temp_reg = E1000_READ_REG(shared, GPTC);
temp_reg = E1000_READ_REG(shared, GORCL);
temp_reg = E1000_READ_REG(shared, GORCH);
temp_reg = E1000_READ_REG(shared, GOTCL);
temp_reg = E1000_READ_REG(shared, GOTCH);
temp_reg = E1000_READ_REG(shared, RNBC);
temp_reg = E1000_READ_REG(shared, RUC);
temp_reg = E1000_READ_REG(shared, RFC);
temp_reg = E1000_READ_REG(shared, ROC);
temp_reg = E1000_READ_REG(shared, RJC);
temp_reg = E1000_READ_REG(shared, TORL);
temp_reg = E1000_READ_REG(shared, TORH);
temp_reg = E1000_READ_REG(shared, TOTL);
temp_reg = E1000_READ_REG(shared, TOTH);
temp_reg = E1000_READ_REG(shared, TPR);
temp_reg = E1000_READ_REG(shared, TPT);
temp_reg = E1000_READ_REG(shared, PTC64);
temp_reg = E1000_READ_REG(shared, PTC127);
temp_reg = E1000_READ_REG(shared, PTC255);
temp_reg = E1000_READ_REG(shared, PTC511);
temp_reg = E1000_READ_REG(shared, PTC1023);
temp_reg = E1000_READ_REG(shared, PTC1522);
temp_reg = E1000_READ_REG(shared, MPTC);
temp_reg = E1000_READ_REG(shared, BPTC);
if(shared->mac_type < e1000_82543)
return;
temp_reg = E1000_READ_REG(shared, ALGNERRC);
temp_reg = E1000_READ_REG(shared, RXERRC);
temp_reg = E1000_READ_REG(shared, TNCRS);
temp_reg = E1000_READ_REG(shared, CEXTERR);
temp_reg = E1000_READ_REG(shared, TSCTC);
temp_reg = E1000_READ_REG(shared, TSCTFC);
return;
}
/******************************************************************************
* Detects the current speed and duplex settings of the hardware.
*
* shared - Struct containing variables accessed by shared code
* speed - Speed of the connection
* duplex - Duplex setting of the connection
*****************************************************************************/
void
e1000_get_speed_and_duplex(struct e1000_shared_adapter *shared,
uint16_t *speed,
uint16_t *duplex)
{
uint32_t status_reg;
#if DBG
uint16_t phy_data;
#endif
DEBUGFUNC("e1000_get_speed_and_duplex");
/* If the adapter is stopped we don't have a speed or duplex */
if(shared->adapter_stopped) {
*speed = 0;
*duplex = 0;
return;
}
if(shared->mac_type >= e1000_82543) {
status_reg = E1000_READ_REG(shared, STATUS);
if(status_reg & E1000_STATUS_SPEED_1000) {
*speed = SPEED_1000;
DEBUGOUT("1000 Mbs, ");
} else if(status_reg & E1000_STATUS_SPEED_100) {
*speed = SPEED_100;
DEBUGOUT("100 Mbs, ");
} else {
*speed = SPEED_10;
DEBUGOUT("10 Mbs, ");
}
if(status_reg & E1000_STATUS_FD) {
*duplex = FULL_DUPLEX;
DEBUGOUT("Full Duplex\r\n");
} else {
*duplex = HALF_DUPLEX;
DEBUGOUT(" Half Duplex\r\n");
}
} else {
DEBUGOUT("1000 Mbs, Full Duplex\r\n");
*speed = SPEED_1000;
*duplex = FULL_DUPLEX;
}
#if DBG
if(shared->phy_id == M88E1000_12_PHY_ID ||
shared->phy_id == M88E1000_14_PHY_ID ||
shared->phy_id == M88E1000_I_PHY_ID) {
/* read the phy specific status register */
phy_data = e1000_read_phy_reg(shared, M88E1000_PHY_SPEC_STATUS);
DEBUGOUT1("M88E1000 Phy Specific Status Reg contents = %x\n", phy_data);
phy_data = e1000_read_phy_reg(shared, PHY_STATUS);
DEBUGOUT1("Phy MII Status Reg contents = %x\n", phy_data);
DEBUGOUT1("Device Status Reg contents = %x\n",
E1000_READ_REG(shared, STATUS));
}
#endif
return;
}
/******************************************************************************
* Reads a 16 bit word from the EEPROM.
*
* shared - Struct containing variables accessed by shared code
* offset - offset of 16 bit word in the EEPROM to read
*****************************************************************************/
uint16_t
e1000_read_eeprom(struct e1000_shared_adapter *shared,
uint16_t offset)
{
uint16_t data;
/* Prepare the EEPROM for reading */
e1000_setup_eeprom(shared);
/* Send the READ command (opcode + addr) */
e1000_shift_out_bits(shared, EEPROM_READ_OPCODE, 3);
e1000_shift_out_bits(shared, offset, 6);
/* Read the data */
data = e1000_shift_in_bits(shared);
/* End this read operation */
e1000_standby_eeprom(shared);
return (data);
}
/******************************************************************************
* Verifies that the EEPROM has a valid checksum
*
* shared - Struct containing variables accessed by shared code
*
* Reads the first 64 16 bit words of the EEPROM and sums the values read.
* If the the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is
* valid.
*****************************************************************************/
boolean_t
e1000_validate_eeprom_checksum(struct e1000_shared_adapter *shared)
{
uint16_t checksum = 0;
uint16_t i;
for(i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++)
checksum += e1000_read_eeprom(shared, i);
if(checksum == (uint16_t) EEPROM_SUM)
return (TRUE);
else
return (FALSE);
}
/******************************************************************************
* Reads the adapter's part number from the EEPROM
*
* shared - Struct containing variables accessed by shared code
* part_num - Adapter's part number
*****************************************************************************/
boolean_t
e1000_read_part_num(struct e1000_shared_adapter *shared,
uint32_t *part_num)
{
uint16_t eeprom_word;
DEBUGFUNC("e1000_read_part_num");
/* Don't read the EEPROM if we are stopped */
if(shared->adapter_stopped) {
*part_num = 0;
return (FALSE);
}
/* Get word 0 from EEPROM */
eeprom_word = e1000_read_eeprom(shared, (uint16_t) (EEPROM_PBA_BYTE_1));
DEBUGOUT("Read first part number word\n");
/* Save word 0 in upper half is PartNumber */
*part_num = (uint32_t) eeprom_word;
*part_num = *part_num << 16;
/* Get word 1 from EEPROM */
eeprom_word =
e1000_read_eeprom(shared, (uint16_t) (EEPROM_PBA_BYTE_1 + 1));
DEBUGOUT("Read second part number word\n");
/* Save word 1 in lower half of PartNumber */
*part_num |= eeprom_word;
/* read a valid part number */
return (TRUE);
}
void
e1000_read_mac_addr(struct e1000_shared_adapter * shared)
{
uint16_t temp, x;
for(x = 0; x < NODE_ADDRESS_SIZE; x += 2) {
temp = e1000_read_eeprom(shared, (uint16_t)
(EEPROM_NODE_ADDRESS_BYTE_0 + (x/2)));
shared->perm_mac_addr[x] = (uint8_t) (temp & 0x00FF);
shared->perm_mac_addr[x+1] = (uint8_t) (temp >> 8);
}
for(x = 0; x < NODE_ADDRESS_SIZE; x++)
shared->mac_addr[x] = shared->perm_mac_addr[x];
}
/******************************************************************************
* Adjusts the statistic counters when a frame is accepted by TBI_ACCEPT
*
* shared - Struct containing variables accessed by shared code
* frame_len - The length of the frame in question
* mac_addr - The Ethernet destination address of the frame in question
*****************************************************************************/
uint32_t
e1000_tbi_adjust_stats(struct e1000_shared_adapter *shared,
struct e1000_shared_stats *stats,
uint32_t frame_len,
uint8_t *mac_addr)
{
uint64_t carry_bit;
/* First adjust the frame length. */
frame_len--;
/* We need to adjust the statistics counters, since the hardware
* counters overcount this packet as a CRC error and undercount
* the packet as a good packet
*/
/* This packet should not be counted as a CRC error. */
stats->crcerrs--;
/* This packet does count as a Good Packet Received. */
stats->gprc++;
/* Adjust the Good Octets received counters */
carry_bit = 0x80000000 & stats->gorcl;
stats->gorcl += frame_len;
/* If the high bit of Gorcl (the low 32 bits of the Good Octets
* Received Count) was one before the addition,
* AND it is zero after, then we lost the carry out,
* need to add one to Gorch (Good Octets Received Count High).
* This could be simplified if all environments supported
* 64-bit integers.
*/
if(carry_bit && ((stats->gorcl & 0x80000000) == 0))
stats->gorch++;
/* Is this a broadcast or multicast? Check broadcast first,
* since the test for a multicast frame will test positive on
* a broadcast frame.
*/
if((mac_addr[0] == (uint8_t) 0xff) && (mac_addr[1] == (uint8_t) 0xff))
/* Broadcast packet */
stats->bprc++;
else if(*mac_addr & 0x01)
/* Multicast packet */
stats->mprc++;
if(frame_len == shared->max_frame_size) {
/* In this case, the hardware has overcounted the number of
* oversize frames.
*/
if(stats->roc > 0)
stats->roc--;
}
/* Adjust the bin counters when the extra byte put the frame in the
* wrong bin. Remember that the frame_len was adjusted above.
*/
if(frame_len == 64) {
stats->prc64++;
stats->prc127--;
} else if(frame_len == 127) {
stats->prc127++;
stats->prc255--;
} else if(frame_len == 255) {
stats->prc255++;
stats->prc511--;
} else if(frame_len == 511) {
stats->prc511++;
stats->prc1023--;
} else if(frame_len == 1023) {
stats->prc1023++;
stats->prc1522--;
} else if(frame_len == 1522) {
stats->prc1522++;
}
return frame_len;
}
/******************************************************************************
* Gets the current PCI bus type, speed, and width of the hardware
*
* shared - Struct containing variables accessed by shared code
*****************************************************************************/
void
e1000_get_bus_info(struct e1000_shared_adapter *shared)
{
uint32_t status_reg;
if(shared->mac_type < e1000_82543) {
shared->bus_type = e1000_bus_type_unknown;
shared->bus_speed = e1000_bus_speed_unknown;
shared->bus_width = e1000_bus_width_unknown;
return;
}
status_reg = E1000_READ_REG(shared, STATUS);
shared->bus_type = (status_reg & E1000_STATUS_PCIX_MODE) ?
e1000_bus_type_pcix : e1000_bus_type_pci;
if(shared->bus_type == e1000_bus_type_pci) {
shared->bus_speed = (status_reg & E1000_STATUS_PCI66) ?
e1000_bus_speed_66 : e1000_bus_speed_33;
} else {
switch (status_reg & E1000_STATUS_PCIX_SPEED) {
case E1000_STATUS_PCIX_SPEED_66:
shared->bus_speed = e1000_bus_speed_66;
break;
case E1000_STATUS_PCIX_SPEED_100:
shared->bus_speed = e1000_bus_speed_100;
break;
case E1000_STATUS_PCIX_SPEED_133:
shared->bus_speed = e1000_bus_speed_133;
break;
default:
shared->bus_speed = e1000_bus_speed_reserved;
break;
}
}
shared->bus_width = (status_reg & E1000_STATUS_BUS64) ?
e1000_bus_width_64 : e1000_bus_width_32;
return;
}
drivers/net/e1000/e1000_mac.h 0 → 100644
View file @ 87a54bc3
/*******************************************************************************
This software program is available to you under a choice of one of two
licenses. You may choose to be licensed under either the GNU General Public
License (GPL) Version 2, June 1991, available at
http://www.fsf.org/copyleft/gpl.html, or the Intel BSD + Patent License, the
text of which follows:
Recipient has requested a license and Intel Corporation ("Intel") is willing
to grant a license for the software entitled Linux Base Driver for the
Intel(R) PRO/1000 Family of Adapters (e1000) (the "Software") being provided
by Intel Corporation. The following definitions apply to this license:
"Licensed Patents" means patent claims licensable by Intel Corporation which
are necessarily infringed by the use of sale of the Software alone or when
combined with the operating system referred to below.
"Recipient" means the party to whom Intel delivers this Software.
"Licensee" means Recipient and those third parties that receive a license to
any operating system available under the GNU Public License version 2.0 or
later.
Copyright (c) 1999 - 2002 Intel Corporation.
All rights reserved.
The license is provided to Recipient and Recipient's Licensees under the
following terms.
Redistribution and use in source and binary forms of the Software, with or
without modification, are permitted provided that the following conditions
are met:
Redistributions of source code of the Software may retain the above
copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form of the Software may reproduce the above
copyright notice, this list of conditions and the following disclaimer in
the documentation and/or materials provided with the distribution.
Neither the name of Intel Corporation nor the names of its contributors
shall be used to endorse or promote products derived from this Software
without specific prior written permission.
Intel hereby grants Recipient and Licensees a non-exclusive, worldwide,
royalty-free patent license under Licensed Patents to make, use, sell, offer
to sell, import and otherwise transfer the Software, if any, in source code
and object code form. This license shall include changes to the Software
that are error corrections or other minor changes to the Software that do
not add functionality or features when the Software is incorporated in any
version of an operating system that has been distributed under the GNU
General Public License 2.0 or later. This patent license shall apply to the
combination of the Software and any operating system licensed under the GNU
Public License version 2.0 or later if, at the time Intel provides the
Software to Recipient, such addition of the Software to the then publicly
available versions of such operating systems available under the GNU Public
License version 2.0 or later (whether in gold, beta or alpha form) causes
such combination to be covered by the Licensed Patents. The patent license
shall not apply to any other combinations which include the Software. NO
hardware per se is licensed hereunder.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR IT CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
ANY LOSS OF USE; DATA, OR PROFITS; OR BUSINESS INTERUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY, WHETHER IN 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.
*******************************************************************************/
/* e1000_mac.h
* Structures, enums, and macros for the MAC
*/
#ifndef _E1000_MAC_H_
#define _E1000_MAC_H_
#include "e1000_osdep.h"
/* Forward declarations of structures used by the shared code */
struct e1000_shared_adapter;
struct e1000_shared_stats;
/* Enumerated types specific to the e1000 hardware */
/* Media Access Controlers */
typedef enum {
e1000_82542_rev2_0 = 0,
e1000_82542_rev2_1,
e1000_82543,
e1000_82544,
e1000_num_macs
} e1000_mac_type;
/* Media Types */
typedef enum {
e1000_media_type_copper = 0,
e1000_media_type_fiber = 1,
e1000_num_media_types
} e1000_media_type;
typedef enum {
e1000_10_half = 0,
e1000_10_full = 1,
e1000_100_half = 2,
e1000_100_full = 3
} e1000_speed_duplex_type;
/* Flow Control Settings */
typedef enum {
e1000_fc_none = 0,
e1000_fc_rx_pause = 1,
e1000_fc_tx_pause = 2,
e1000_fc_full = 3,
e1000_fc_default = 0xFF
} e1000_fc_type;
/* PCI bus types */
typedef enum {
e1000_bus_type_unknown = 0,
e1000_bus_type_pci,
e1000_bus_type_pcix
} e1000_bus_type;
/* PCI bus speeds */
typedef enum {
e1000_bus_speed_unknown = 0,
e1000_bus_speed_33,
e1000_bus_speed_66,
e1000_bus_speed_100,
e1000_bus_speed_133,
e1000_bus_speed_reserved
} e1000_bus_speed;
/* PCI bus widths */
typedef enum {
e1000_bus_width_unknown = 0,
e1000_bus_width_32,
e1000_bus_width_64
} e1000_bus_width;
/* Function prototypes */
/* Setup */
void e1000_adapter_stop(struct e1000_shared_adapter *shared);
boolean_t e1000_init_hw(struct e1000_shared_adapter *shared);
void e1000_init_rx_addrs(struct e1000_shared_adapter *shared);
/* Filters (multicast, vlan, receive) */
void e1000_mc_addr_list_update(struct e1000_shared_adapter *shared, uint8_t * mc_addr_list, uint32_t mc_addr_count, uint32_t pad);
uint32_t e1000_hash_mc_addr(struct e1000_shared_adapter *shared, uint8_t * mc_addr);
void e1000_mta_set(struct e1000_shared_adapter *shared, uint32_t hash_value);
void e1000_rar_set(struct e1000_shared_adapter *shared, uint8_t * mc_addr, uint32_t rar_index);
void e1000_write_vfta(struct e1000_shared_adapter *shared, uint32_t offset, uint32_t value);
void e1000_clear_vfta(struct e1000_shared_adapter *shared);
/* Link layer setup functions */
boolean_t e1000_setup_fc_and_link(struct e1000_shared_adapter *shared);
boolean_t e1000_setup_pcs_link(struct e1000_shared_adapter *shared, uint32_t dev_ctrl_reg);
void e1000_config_fc_after_link_up(struct e1000_shared_adapter *shared);
void e1000_check_for_link(struct e1000_shared_adapter *shared);
void e1000_get_speed_and_duplex(struct e1000_shared_adapter *shared, uint16_t * speed, uint16_t * duplex);
/* EEPROM Functions */
uint16_t e1000_read_eeprom(struct e1000_shared_adapter *shared, uint16_t reg);
boolean_t e1000_validate_eeprom_checksum(struct e1000_shared_adapter *shared);
/* Everything else */
void e1000_clear_hw_cntrs(struct e1000_shared_adapter *shared);
boolean_t e1000_read_part_num(struct e1000_shared_adapter *shared, uint32_t * part_num);
void e1000_read_mac_addr(struct e1000_shared_adapter * shared);
void e1000_get_bus_info(struct e1000_shared_adapter *shared);
uint32_t e1000_tbi_adjust_stats(struct e1000_shared_adapter *shared, struct e1000_shared_stats *stats, uint32_t frame_len, uint8_t * mac_addr);
void e1000_write_pci_cfg(struct e1000_shared_adapter *shared, uint32_t reg, uint16_t * value);
/* PCI Device IDs */
#define E1000_DEV_ID_82542 0x1000
#define E1000_DEV_ID_82543GC_FIBER 0x1001
#define E1000_DEV_ID_82543GC_COPPER 0x1004
#define E1000_DEV_ID_82544EI_COPPER 0x1008
#define E1000_DEV_ID_82544EI_FIBER 0x1009
#define E1000_DEV_ID_82544GC_COPPER 0x100C
#define E1000_DEV_ID_82544GC_LOM 0x100D
#define NUM_DEV_IDS 7
#define NODE_ADDRESS_SIZE 6
#define ETH_LENGTH_OF_ADDRESS 6
/* MAC decode size is 128K - This is the size of BAR0 */
#define MAC_DECODE_SIZE (128 * 1024)
#define E1000_82542_2_0_REV_ID 2
#define E1000_82542_2_1_REV_ID 3
#define SPEED_10 10
#define SPEED_100 100
#define SPEED_1000 1000
#define HALF_DUPLEX 1
#define FULL_DUPLEX 2
/* The sizes (in bytes) of a ethernet packet */
#define ENET_HEADER_SIZE 14
#define MAXIMUM_ETHERNET_PACKET_SIZE 1514 /* Without FCS */
#define MINIMUM_ETHERNET_PACKET_SIZE 60 /* Without FCS */
#define CRC_LENGTH 4
#define MAX_JUMBO_FRAME_SIZE 0x3F00
/* 802.1q VLAN Packet Sizes */
#define VLAN_TAG_SIZE 4 /* 802.3ac tag (not DMAed) */
/* Ethertype field values */
#define ETHERNET_IEEE_VLAN_TYPE 0x8100 /* 802.3ac packet */
#define ETHERNET_IP_TYPE 0x0800 /* IP packets */
#define ETHERNET_ARP_TYPE 0x0806 /* Address Resolution Protocol (ARP) */
/* Packet Header defines */
#define IP_PROTOCOL_TCP 6
#define IP_PROTOCOL_UDP 0x11
/* This defines the bits that are set in the Interrupt Mask
* Set/Read Register. Each bit is documented below:
* o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0)
* o RXSEQ = Receive Sequence Error
*/
#define POLL_IMS_ENABLE_MASK ( \
E1000_IMS_RXDMT0 | \
E1000_IMS_RXSEQ)
/* This defines the bits that are set in the Interrupt Mask
* Set/Read Register. Each bit is documented below:
* o RXT0 = Receiver Timer Interrupt (ring 0)
* o TXDW = Transmit Descriptor Written Back
* o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0)
* o RXSEQ = Receive Sequence Error
* o LSC = Link Status Change
*/
#define IMS_ENABLE_MASK ( \
E1000_IMS_RXT0 | \
E1000_IMS_TXDW | \
E1000_IMS_RXDMT0 | \
E1000_IMS_RXSEQ | \
E1000_IMS_LSC)
/* The number of high/low register pairs in the RAR. The RAR (Receive Address
* Registers) holds the directed and multicast addresses that we monitor. We
* reserve one of these spots for our directed address, allowing us room for
* E1000_RAR_ENTRIES - 1 multicast addresses.
*/
#define E1000_RAR_ENTRIES 16
#define MIN_NUMBER_OF_DESCRIPTORS 8
#define MAX_NUMBER_OF_DESCRIPTORS 0xFFF8
/* Receive Descriptor */
struct e1000_rx_desc {
uint64_t buffer_addr; /* Address of the descriptor's data buffer */
uint16_t length; /* Length of data DMAed into data buffer */
uint16_t csum; /* Packet checksum */
uint8_t status; /* Descriptor status */
uint8_t errors; /* Descriptor Errors */
uint16_t special;
};
/* Receive Decriptor bit definitions */
#define E1000_RXD_STAT_DD 0x01 /* Descriptor Done */
#define E1000_RXD_STAT_EOP 0x02 /* End of Packet */
#define E1000_RXD_STAT_IXSM 0x04 /* Ignore checksum */
#define E1000_RXD_STAT_VP 0x08 /* IEEE VLAN Packet */
#define E1000_RXD_STAT_TCPCS 0x20 /* TCP xsum calculated */
#define E1000_RXD_STAT_IPCS 0x40 /* IP xsum calculated */
#define E1000_RXD_STAT_PIF 0x80 /* passed in-exact filter */
#define E1000_RXD_ERR_CE 0x01 /* CRC Error */
#define E1000_RXD_ERR_SE 0x02 /* Symbol Error */
#define E1000_RXD_ERR_SEQ 0x04 /* Sequence Error */
#define E1000_RXD_ERR_CXE 0x10 /* Carrier Extension Error */
#define E1000_RXD_ERR_TCPE 0x20 /* TCP/UDP Checksum Error */
#define E1000_RXD_ERR_IPE 0x40 /* IP Checksum Error */
#define E1000_RXD_ERR_RXE 0x80 /* Rx Data Error */
#define E1000_RXD_SPC_VLAN_MASK 0x0FFF /* VLAN ID is in lower 12 bits */
#define E1000_RXD_SPC_PRI_MASK 0xE000 /* Priority is in upper 3 bits */
#define E1000_RXD_SPC_PRI_SHIFT 0x000D /* Priority is in upper 3 of 16 */
#define E1000_RXD_SPC_CFI_MASK 0x1000 /* CFI is bit 12 */
#define E1000_RXD_SPC_CFI_SHIFT 0x000C /* CFI is bit 12 */
/* mask to determine if packets should be dropped due to frame errors */
#define E1000_RXD_ERR_FRAME_ERR_MASK ( \
E1000_RXD_ERR_CE | \
E1000_RXD_ERR_SE | \
E1000_RXD_ERR_SEQ | \
E1000_RXD_ERR_CXE | \
E1000_RXD_ERR_RXE)
/* Transmit Descriptor */
struct e1000_tx_desc {
uint64_t buffer_addr; /* Address of the descriptor's data buffer */
union {
uint32_t data;
struct {
uint16_t length; /* Data buffer length */
uint8_t cso; /* Checksum offset */
uint8_t cmd; /* Descriptor control */
} flags;
} lower;
union {
uint32_t data;
struct {
uint8_t status; /* Descriptor status */
uint8_t css; /* Checksum start */
uint16_t special;
} fields;
} upper;
};
/* Transmit Descriptor bit definitions */
#define E1000_TXD_DTYP_D 0x00100000 /* Data Descriptor */
#define E1000_TXD_DTYP_C 0x00000000 /* Context Descriptor */
#define E1000_TXD_POPTS_IXSM 0x01 /* Insert IP checksum */
#define E1000_TXD_POPTS_TXSM 0x02 /* Insert TCP/UDP checksum */
#define E1000_TXD_CMD_EOP 0x01000000 /* End of Packet */
#define E1000_TXD_CMD_IFCS 0x02000000 /* Insert FCS (Ethernet CRC) */
#define E1000_TXD_CMD_IC 0x04000000 /* Insert Checksum */
#define E1000_TXD_CMD_RS 0x08000000 /* Report Status */
#define E1000_TXD_CMD_RPS 0x10000000 /* Report Packet Sent */
#define E1000_TXD_CMD_DEXT 0x20000000 /* Descriptor extension (0 = legacy) */
#define E1000_TXD_CMD_VLE 0x40000000 /* Add VLAN tag */
#define E1000_TXD_CMD_IDE 0x80000000 /* Enable Tidv register */
#define E1000_TXD_STAT_DD 0x00000001 /* Descriptor Done */
#define E1000_TXD_STAT_EC 0x00000002 /* Excess Collisions */
#define E1000_TXD_STAT_LC 0x00000004 /* Late Collisions */
#define E1000_TXD_STAT_TU 0x00000008 /* Transmit underrun */
#define E1000_TXD_CMD_TCP 0x01000000 /* TCP packet */
#define E1000_TXD_CMD_IP 0x02000000 /* IP packet */
#define E1000_TXD_CMD_TSE 0x04000000 /* TCP Seg enable */
#define E1000_TXD_STAT_TC 0x00000004 /* Tx Underrun */
/* Offload Context Descriptor */
struct e1000_context_desc {
union {
uint32_t ip_config;
struct {
uint8_t ipcss; /* IP checksum start */
uint8_t ipcso; /* IP checksum offset */
uint16_t ipcse; /* IP checksum end */
} ip_fields;
} lower_setup;
union {
uint32_t tcp_config;
struct {
uint8_t tucss; /* TCP checksum start */
uint8_t tucso; /* TCP checksum offset */
uint16_t tucse; /* TCP checksum end */
} tcp_fields;
} upper_setup;
uint32_t cmd_and_length; /* */
union {
uint32_t data;
struct {
uint8_t status; /* Descriptor status */
uint8_t hdr_len; /* Header length */
uint16_t mss; /* Maximum segment size */
} fields;
} tcp_seg_setup;
};
/* Offload data descriptor */
struct e1000_data_desc {
uint64_t buffer_addr; /* Address of the descriptor's buffer address */
union {
uint32_t data;
struct {
uint16_t length; /* Data buffer length */
uint8_t typ_len_ext; /* */
uint8_t cmd; /* */
} flags;
} lower;
union {
uint32_t data;
struct {
uint8_t status; /* Descriptor status */
uint8_t popts; /* Packet Options */
uint16_t special; /* */
} fields;
} upper;
};
/* Filters */
#define E1000_NUM_UNICAST 16 /* Unicast filter entries */
#define E1000_MC_TBL_SIZE 128 /* Multicast Filter Table (4096 bits) */
#define E1000_VLAN_FILTER_TBL_SIZE 128 /* VLAN Filter Table (4096 bits) */
/* Receive Address Register */
struct e1000_rar {
volatile uint32_t low; /* receive address low */
volatile uint32_t high; /* receive address high */
};
/* The number of entries in the Multicast Table Array (MTA). */
#define E1000_NUM_MTA_REGISTERS 128
/* IPv4 Address Table Entry */
struct e1000_ipv4_at_entry {
volatile uint32_t ipv4_addr; /* IP Address (RW) */
volatile uint32_t reserved;
};
/* Four wakeup IP addresses are supported */
#define E1000_WAKEUP_IP_ADDRESS_COUNT_MAX 4
#define E1000_IP4AT_SIZE E1000_WAKEUP_IP_ADDRESS_COUNT_MAX
#define E1000_IP6AT_SIZE 1
/* IPv6 Address Table Entry */
struct e1000_ipv6_at_entry {
volatile uint8_t ipv6_addr[16];
};
/* Flexible Filter Length Table Entry */
struct e1000_fflt_entry {
volatile uint32_t length; /* Flexible Filter Length (RW) */
volatile uint32_t reserved;
};
/* Flexible Filter Mask Table Entry */
struct e1000_ffmt_entry {
volatile uint32_t mask; /* Flexible Filter Mask (RW) */
volatile uint32_t reserved;
};
/* Flexible Filter Value Table Entry */
struct e1000_ffvt_entry {
volatile uint32_t value; /* Flexible Filter Value (RW) */
volatile uint32_t reserved;
};
/* Four Flexible Filters are supported */
#define E1000_FLEXIBLE_FILTER_COUNT_MAX 4
/* Each Flexible Filter is at most 128 (0x80) bytes in length */
#define E1000_FLEXIBLE_FILTER_SIZE_MAX 128
#define E1000_FFLT_SIZE E1000_FLEXIBLE_FILTER_COUNT_MAX
#define E1000_FFMT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX
#define E1000_FFVT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX
/* Register Set. (82543, 82544)
*
* Registers are defined to be 32 bits and should be accessed as 32 bit values.
* These registers are physically located on the NIC, but are mapped into the
* host memory address space.
*
* RW - register is both readable and writable
* RO - register is read only
* WO - register is write only
* R/clr - register is read only and is cleared when read
* A - register array
*/
#define E1000_CTRL 0x00000 /* Device Control - RW */
#define E1000_STATUS 0x00008 /* Device Status - RO */
#define E1000_EECD 0x00010 /* EEPROM/Flash Control - RW */
#define E1000_EERD 0x00014 /* EEPROM Read - RW */
#define E1000_CTRL_EXT 0x00018 /* Extended Device Control - RW */
#define E1000_MDIC 0x00020 /* MDI Control - RW */
#define E1000_FCAL 0x00028 /* Flow Control Address Low - RW */
#define E1000_FCAH 0x0002C /* Flow Control Address High -RW */
#define E1000_FCT 0x00030 /* Flow Control Type - RW */
#define E1000_VET 0x00038 /* VLAN Ether Type - RW */
#define E1000_ICR 0x000C0 /* Interrupt Cause Read - R/clr */
#define E1000_ITR 0x000C4 /* Interrupt Throttling Rate - RW */
#define E1000_ICS 0x000C8 /* Interrupt Cause Set - WO */
#define E1000_IMS 0x000D0 /* Interrupt Mask Set - RW */
#define E1000_IMC 0x000D8 /* Interrupt Mask Clear - WO */
#define E1000_RCTL 0x00100 /* RX Control - RW */
#define E1000_FCTTV 0x00170 /* Flow Control Transmit Timer Value - RW */
#define E1000_TXCW 0x00178 /* TX Configuration Word - RW */
#define E1000_RXCW 0x00180 /* RX Configuration Word - RO */
#define E1000_TCTL 0x00400 /* TX Control - RW */
#define E1000_TIPG 0x00410 /* TX Inter-packet gap -RW */
#define E1000_TBT 0x00448 /* TX Burst Timer - RW */
#define E1000_LEDCTL 0x00E00 /* LED Control - RW */
#define E1000_PBA 0x01000 /* Packet Buffer Allocation - RW */
#define E1000_FCRTL 0x02160 /* Flow Control Receive Threshold Low - RW */
#define E1000_FCRTH 0x02168 /* Flow Control Receive Threshold High - RW */
#define E1000_RDBAL 0x02800 /* RX Descriptor Base Address Low - RW */
#define E1000_RDBAH 0x02804 /* RX Descriptor Base Address High - RW */
#define E1000_RDLEN 0x02808 /* RX Descriptor Length - RW */
#define E1000_RDH 0x02810 /* RX Descriptor Head - RW */
#define E1000_RDT 0x02818 /* RX Descriptor Tail - RW */
#define E1000_RDTR 0x02820 /* RX Delay Timer - RW */
#define E1000_RXDCTL 0x02828 /* RX Descriptor Control - RW */
#define E1000_RADV 0x0282C /* RX Interrupt Absolute Delay Timer - RW */
#define E1000_RSRPD 0x02C00 /* RX Small Packet Detect - RW */
#define E1000_TXDMAC 0x03000 /* TX DMA Control - RW */
#define E1000_TDBAL 0x03800 /* TX Descriptor Base Address Low - RW */
#define E1000_TDBAH 0x03804 /* TX Descriptor Base Address High - RW */
#define E1000_TDLEN 0x03808 /* TX Descriptor Length - RW */
#define E1000_TDH 0x03810 /* TX Descriptor Head - RW */
#define E1000_TDT 0x03818 /* TX Descripotr Tail - RW */
#define E1000_TIDV 0x03820 /* TX Interrupt Delay Value - RW */
#define E1000_TXDCTL 0x03828 /* TX Descriptor Control - RW */
#define E1000_TADV 0x0382C /* TX Interrupt Absolute Delay Val - RW */
#define E1000_TSPMT 0x03830 /* TCP Segmentation PAD & Min Threshold - RW */
#define E1000_CRCERRS 0x04000 /* CRC Error Count - R/clr */
#define E1000_ALGNERRC 0x04004 /* Alignment Error Count - R/clr */
#define E1000_SYMERRS 0x04008 /* Symbol Error Count - R/clr */
#define E1000_RXERRC 0x0400C /* Receive Error Count - R/clr */
#define E1000_MPC 0x04010 /* Missed Packet Count - R/clr */
#define E1000_SCC 0x04014 /* Single Collision Count - R/clr */
#define E1000_ECOL 0x04018 /* Excessive Collision Count - R/clr */
#define E1000_MCC 0x0401C /* Multiple Collision Count - R/clr */
#define E1000_LATECOL 0x04020 /* Late Collision Count - R/clr */
#define E1000_COLC 0x04028 /* Collision Count - R/clr */
#define E1000_DC 0x04030 /* Defer Count - R/clr */
#define E1000_TNCRS 0x04034 /* TX-No CRS - R/clr */
#define E1000_SEC 0x04038 /* Sequence Error Count - R/clr */
#define E1000_CEXTERR 0x0403C /* Carrier Extension Error Count - R/clr */
#define E1000_RLEC 0x04040 /* Receive Length Error Count - R/clr */
#define E1000_XONRXC 0x04048 /* XON RX Count - R/clr */
#define E1000_XONTXC 0x0404C /* XON TX Count - R/clr */
#define E1000_XOFFRXC 0x04050 /* XOFF RX Count - R/clr */
#define E1000_XOFFTXC 0x04054 /* XOFF TX Count - R/clr */
#define E1000_FCRUC 0x04058 /* Flow Control RX Unsupported Count- R/clr */
#define E1000_PRC64 0x0405C /* Packets RX (64 bytes) - R/clr */
#define E1000_PRC127 0x04060 /* Packets RX (65-127 bytes) - R/clr */
#define E1000_PRC255 0x04064 /* Packets RX (128-255 bytes) - R/clr */
#define E1000_PRC511 0x04068 /* Packets RX (255-511 bytes) - R/clr */
#define E1000_PRC1023 0x0406C /* Packets RX (512-1023 bytes) - R/clr */
#define E1000_PRC1522 0x04070 /* Packets RX (1024-1522 bytes) - R/clr */
#define E1000_GPRC 0x04074 /* Good Packets RX Count - R/clr */
#define E1000_BPRC 0x04078 /* Broadcast Packets RX Count - R/clr */
#define E1000_MPRC 0x0407C /* Multicast Packets RX Count - R/clr */
#define E1000_GPTC 0x04080 /* Good Packets TX Count - R/clr */
#define E1000_GORCL 0x04088 /* Good Octets RX Count Low - R/clr */
#define E1000_GORCH 0x0408C /* Good Octets RX Count High - R/clr */
#define E1000_GOTCL 0x04090 /* Good Octets TX Count Low - R/clr */
#define E1000_GOTCH 0x04094 /* Good Octets TX Count High - R/clr */
#define E1000_RNBC 0x040A0 /* RX No Buffers Count - R/clr */
#define E1000_RUC 0x040A4 /* RX Undersize Count - R/clr */
#define E1000_RFC 0x040A8 /* RX Fragment Count - R/clr */
#define E1000_ROC 0x040AC /* RX Oversize Count - R/clr */
#define E1000_RJC 0x040B0 /* RX Jabber Count - R/clr */
#define E1000_MGTPRC 0x040B4 /* Management Packets RX Count - R/clr */
#define E1000_MGTPDC 0x040B8 /* Management Packets Dropped Count - R/clr */
#define E1000_MGTPTC 0x040BC /* Management Packets TX Count - R/clr */
#define E1000_TORL 0x040C0 /* Total Octets RX Low - R/clr */
#define E1000_TORH 0x040C4 /* Total Octets RX High - R/clr */
#define E1000_TOTL 0x040C8 /* Total Octets TX Low - R/clr */
#define E1000_TOTH 0x040CC /* Total Octets TX High - R/clr */
#define E1000_TPR 0x040D0 /* Total Packets RX - R/clr */
#define E1000_TPT 0x040D4 /* Total Packets TX - R/clr */
#define E1000_PTC64 0x040D8 /* Packets TX (64 bytes) - R/clr */
#define E1000_PTC127 0x040DC /* Packets TX (65-127 bytes) - R/clr */
#define E1000_PTC255 0x040E0 /* Packets TX (128-255 bytes) - R/clr */
#define E1000_PTC511 0x040E4 /* Packets TX (256-511 bytes) - R/clr */
#define E1000_PTC1023 0x040E8 /* Packets TX (512-1023 bytes) - R/clr */
#define E1000_PTC1522 0x040EC /* Packets TX (1024-1522 Bytes) - R/clr */
#define E1000_MPTC 0x040F0 /* Multicast Packets TX Count - R/clr */
#define E1000_BPTC 0x040F4 /* Broadcast Packets TX Count - R/clr */
#define E1000_TSCTC 0x040F8 /* TCP Segmentation Context TX - R/clr */
#define E1000_TSCTFC 0x040FC /* TCP Segmentation Context TX Fail - R/clr */
#define E1000_RXCSUM 0x05000 /* RX Checksum Control - RW */
#define E1000_MTA 0x05200 /* Multicast Table Array - RW Array */
#define E1000_RA 0x05400 /* Receive Address - RW Array */
#define E1000_VFTA 0x05600 /* VLAN Filter Table Array - RW Array */
#define E1000_WUC 0x05800 /* Wakeup Control - RW */
#define E1000_WUFC 0x05808 /* Wakeup Filter Control - RW */
#define E1000_WUS 0x05810 /* Wakeup Status - RO */
#define E1000_MANC 0x05820 /* Management Control - RW */
#define E1000_IPAV 0x05838 /* IP Address Valid - RW */
#define E1000_IP4AT 0x05840 /* IPv4 Address Table - RW Array */
#define E1000_IP6AT 0x05880 /* IPv6 Address Table - RW Array */
#define E1000_WUPL 0x05900 /* Wakeup Packet Length - RW */
#define E1000_WUPM 0x05A00 /* Wakeup Packet Memory - RO A */
#define E1000_FFLT 0x05F00 /* Flexible Filter Length Table - RW Array */
#define E1000_FFMT 0x09000 /* Flexible Filter Mask Table - RW Array */
#define E1000_FFVT 0x09800 /* Flexible Filter Value Table - RW Array */
/* Register Set (82542)
*
* Some of the 82542 registers are located at different offsets than they are
* in more current versions of the 8254x. Despite the difference in location,
* the registers function in the same manner.
*/
#define E1000_82542_CTRL E1000_CTRL
#define E1000_82542_STATUS E1000_STATUS
#define E1000_82542_EECD E1000_EECD
#define E1000_82542_EERD E1000_EERD
#define E1000_82542_CTRL_EXT E1000_CTRL_EXT
#define E1000_82542_MDIC E1000_MDIC
#define E1000_82542_FCAL E1000_FCAL
#define E1000_82542_FCAH E1000_FCAH
#define E1000_82542_FCT E1000_FCT
#define E1000_82542_VET E1000_VET
#define E1000_82542_RA 0x00040
#define E1000_82542_ICR E1000_ICR
#define E1000_82542_ITR E1000_ITR
#define E1000_82542_ICS E1000_ICS
#define E1000_82542_IMS E1000_IMS
#define E1000_82542_IMC E1000_IMC
#define E1000_82542_RCTL E1000_RCTL
#define E1000_82542_RDTR 0x00108
#define E1000_82542_RDBAL 0x00110
#define E1000_82542_RDBAH 0x00114
#define E1000_82542_RDLEN 0x00118
#define E1000_82542_RDH 0x00120
#define E1000_82542_RDT 0x00128
#define E1000_82542_FCRTH 0x00160
#define E1000_82542_FCRTL 0x00168
#define E1000_82542_FCTTV E1000_FCTTV
#define E1000_82542_TXCW E1000_TXCW
#define E1000_82542_RXCW E1000_RXCW
#define E1000_82542_MTA 0x00200
#define E1000_82542_TCTL E1000_TCTL
#define E1000_82542_TIPG E1000_TIPG
#define E1000_82542_TDBAL 0x00420
#define E1000_82542_TDBAH 0x00424
#define E1000_82542_TDLEN 0x00428
#define E1000_82542_TDH 0x00430
#define E1000_82542_TDT 0x00438
#define E1000_82542_TIDV 0x00440
#define E1000_82542_TBT E1000_TBT
#define E1000_82542_VFTA 0x00600
#define E1000_82542_LEDCTL E1000_LEDCTL
#define E1000_82542_PBA E1000_PBA
#define E1000_82542_RXDCTL E1000_RXDCTL
#define E1000_82542_RADV E1000_RADV
#define E1000_82542_RSRPD E1000_RSRPD
#define E1000_82542_TXDMAC E1000_TXDMAC
#define E1000_82542_TXDCTL E1000_TXDCTL
#define E1000_82542_TADV E1000_TADV
#define E1000_82542_TSPMT E1000_TSPMT
#define E1000_82542_CRCERRS E1000_CRCERRS
#define E1000_82542_ALGNERRC E1000_ALGNERRC
#define E1000_82542_SYMERRS E1000_SYMERRS
#define E1000_82542_RXERRC E1000_RXERRC
#define E1000_82542_MPC E1000_MPC
#define E1000_82542_SCC E1000_SCC
#define E1000_82542_ECOL E1000_ECOL
#define E1000_82542_MCC E1000_MCC
#define E1000_82542_LATECOL E1000_LATECOL
#define E1000_82542_COLC E1000_COLC
#define E1000_82542_DC E1000_DC
#define E1000_82542_TNCRS E1000_TNCRS
#define E1000_82542_SEC E1000_SEC
#define E1000_82542_CEXTERR E1000_CEXTERR
#define E1000_82542_RLEC E1000_RLEC
#define E1000_82542_XONRXC E1000_XONRXC
#define E1000_82542_XONTXC E1000_XONTXC
#define E1000_82542_XOFFRXC E1000_XOFFRXC
#define E1000_82542_XOFFTXC E1000_XOFFTXC
#define E1000_82542_FCRUC E1000_FCRUC
#define E1000_82542_PRC64 E1000_PRC64
#define E1000_82542_PRC127 E1000_PRC127
#define E1000_82542_PRC255 E1000_PRC255
#define E1000_82542_PRC511 E1000_PRC511
#define E1000_82542_PRC1023 E1000_PRC1023
#define E1000_82542_PRC1522 E1000_PRC1522
#define E1000_82542_GPRC E1000_GPRC
#define E1000_82542_BPRC E1000_BPRC
#define E1000_82542_MPRC E1000_MPRC
#define E1000_82542_GPTC E1000_GPTC
#define E1000_82542_GORCL E1000_GORCL
#define E1000_82542_GORCH E1000_GORCH
#define E1000_82542_GOTCL E1000_GOTCL
#define E1000_82542_GOTCH E1000_GOTCH
#define E1000_82542_RNBC E1000_RNBC
#define E1000_82542_RUC E1000_RUC
#define E1000_82542_RFC E1000_RFC
#define E1000_82542_ROC E1000_ROC
#define E1000_82542_RJC E1000_RJC
#define E1000_82542_MGTPRC E1000_MGTPRC
#define E1000_82542_MGTPDC E1000_MGTPDC
#define E1000_82542_MGTPTC E1000_MGTPTC
#define E1000_82542_TORL E1000_TORL
#define E1000_82542_TORH E1000_TORH
#define E1000_82542_TOTL E1000_TOTL
#define E1000_82542_TOTH E1000_TOTH
#define E1000_82542_TPR E1000_TPR
#define E1000_82542_TPT E1000_TPT
#define E1000_82542_PTC64 E1000_PTC64
#define E1000_82542_PTC127 E1000_PTC127
#define E1000_82542_PTC255 E1000_PTC255
#define E1000_82542_PTC511 E1000_PTC511
#define E1000_82542_PTC1023 E1000_PTC1023
#define E1000_82542_PTC1522 E1000_PTC1522
#define E1000_82542_MPTC E1000_MPTC
#define E1000_82542_BPTC E1000_BPTC
#define E1000_82542_TSCTC E1000_TSCTC
#define E1000_82542_TSCTFC E1000_TSCTFC
#define E1000_82542_RXCSUM E1000_RXCSUM
#define E1000_82542_WUC E1000_WUC
#define E1000_82542_WUFC E1000_WUFC
#define E1000_82542_WUS E1000_WUS
#define E1000_82542_MANC E1000_MANC
#define E1000_82542_IPAV E1000_IPAV
#define E1000_82542_IP4AT E1000_IP4AT
#define E1000_82542_IP6AT E1000_IP6AT
#define E1000_82542_WUPL E1000_WUPL
#define E1000_82542_WUPM E1000_WUPM
#define E1000_82542_FFLT E1000_FFLT
#define E1000_82542_FFMT E1000_FFMT
#define E1000_82542_FFVT E1000_FFVT
/* Statistics counters collected by the MAC */
struct e1000_shared_stats {
uint64_t crcerrs;
uint64_t algnerrc;
uint64_t symerrs;
uint64_t rxerrc;
uint64_t mpc;
uint64_t scc;
uint64_t ecol;
uint64_t mcc;
uint64_t latecol;
uint64_t colc;
uint64_t dc;
uint64_t tncrs;
uint64_t sec;
uint64_t cexterr;
uint64_t rlec;
uint64_t xonrxc;
uint64_t xontxc;
uint64_t xoffrxc;
uint64_t xofftxc;
uint64_t fcruc;
uint64_t prc64;
uint64_t prc127;
uint64_t prc255;
uint64_t prc511;
uint64_t prc1023;
uint64_t prc1522;
uint64_t gprc;
uint64_t bprc;
uint64_t mprc;
uint64_t gptc;
uint64_t gorcl;
uint64_t gorch;
uint64_t gotcl;
uint64_t gotch;
uint64_t rnbc;
uint64_t ruc;
uint64_t rfc;
uint64_t roc;
uint64_t rjc;
uint64_t mgprc;
uint64_t mgpdc;
uint64_t mgptc;
uint64_t torl;
uint64_t torh;
uint64_t totl;
uint64_t toth;
uint64_t tpr;
uint64_t tpt;
uint64_t ptc64;
uint64_t ptc127;
uint64_t ptc255;
uint64_t ptc511;
uint64_t ptc1023;
uint64_t ptc1522;
uint64_t mptc;
uint64_t bptc;
uint64_t tsctc;
uint64_t tsctfc;
};
/* Structure containing variables used by the shared code (e1000_mac.c and
* e1000_phy.c)
*/
struct e1000_shared_adapter {
uint8_t *hw_addr;
e1000_mac_type mac_type;
e1000_media_type media_type;
void *back;
e1000_fc_type fc;
e1000_bus_speed bus_speed;
e1000_bus_width bus_width;
e1000_bus_type bus_type;
uint32_t phy_id;
uint32_t phy_addr;
uint32_t original_fc;
uint32_t txcw_reg;
uint32_t autoneg_failed;
uint32_t max_frame_size;
uint32_t min_frame_size;
uint32_t mc_filter_type;
uint32_t num_mc_addrs;
uint16_t autoneg_advertised;
uint16_t pci_cmd_word;
uint16_t fc_high_water;
uint16_t fc_low_water;
uint16_t fc_pause_time;
uint16_t device_id;
uint16_t vendor_id;
uint16_t subsystem_id;
uint16_t subsystem_vendor_id;
uint8_t revision_id;
boolean_t disable_polarity_correction;
boolean_t get_link_status;
boolean_t tbi_compatibility_en;
boolean_t tbi_compatibility_on;
boolean_t adapter_stopped;
boolean_t fc_send_xon;
boolean_t report_tx_early;
uint8_t autoneg;
uint8_t mdix;
uint8_t forced_speed_duplex;
uint8_t wait_autoneg_complete;
uint8_t dma_fairness;
uint8_t mac_addr[NODE_ADDRESS_SIZE];
uint8_t perm_mac_addr[NODE_ADDRESS_SIZE];
};
#define E1000_EEPROM_SWDPIN0 0x0001 /* SWDPIN 0 EEPROM Value */
#define E1000_EEPROM_LED_LOGIC 0x0020 /* Led Logic Word */
/* Register Bit Masks */
/* Device Control */
#define E1000_CTRL_FD 0x00000001 /* Full duplex.0=half; 1=full */
#define E1000_CTRL_BEM 0x00000002 /* Endian Mode.0=little,1=big */
#define E1000_CTRL_PRIOR 0x00000004 /* Priority on PCI. 0=rx,1=fair */
#define E1000_CTRL_LRST 0x00000008 /* Link reset. 0=normal,1=reset */
#define E1000_CTRL_TME 0x00000010 /* Test mode. 0=normal,1=test */
#define E1000_CTRL_SLE 0x00000020 /* Serial Link on 0=dis,1=en */
#define E1000_CTRL_ASDE 0x00000020 /* Auto-speed detect enable */
#define E1000_CTRL_SLU 0x00000040 /* Set link up (Force Link) */
#define E1000_CTRL_ILOS 0x00000080 /* Invert Loss-Of Signal */
#define E1000_CTRL_SPD_SEL 0x00000300 /* Speed Select Mask */
#define E1000_CTRL_SPD_10 0x00000000 /* Force 10Mb */
#define E1000_CTRL_SPD_100 0x00000100 /* Force 100Mb */
#define E1000_CTRL_SPD_1000 0x00000200 /* Force 1Gb */
#define E1000_CTRL_BEM32 0x00000400 /* Big Endian 32 mode */
#define E1000_CTRL_FRCSPD 0x00000800 /* Force Speed */
#define E1000_CTRL_FRCDPX 0x00001000 /* Force Duplex */
#define E1000_CTRL_SWDPIN0 0x00040000 /* SWDPIN 0 value */
#define E1000_CTRL_SWDPIN1 0x00080000 /* SWDPIN 1 value */
#define E1000_CTRL_SWDPIN2 0x00100000 /* SWDPIN 2 value */
#define E1000_CTRL_SWDPIN3 0x00200000 /* SWDPIN 3 value */
#define E1000_CTRL_SWDPIO0 0x00400000 /* SWDPIN 0 Input or output */
#define E1000_CTRL_SWDPIO1 0x00800000 /* SWDPIN 1 input or output */
#define E1000_CTRL_SWDPIO2 0x01000000 /* SWDPIN 2 input or output */
#define E1000_CTRL_SWDPIO3 0x02000000 /* SWDPIN 3 input or output */
#define E1000_CTRL_RST 0x04000000 /* Global reset */
#define E1000_CTRL_RFCE 0x08000000 /* Receive Flow Control enable */
#define E1000_CTRL_TFCE 0x10000000 /* Transmit flow control enable */
#define E1000_CTRL_RTE 0x20000000 /* Routing tag enable */
#define E1000_CTRL_VME 0x40000000 /* IEEE VLAN mode enable */
#define E1000_CTRL_PHY_RST 0x80000000 /* PHY Reset */
/* Device Status */
#define E1000_STATUS_FD 0x00000001 /* Full duplex.0=half,1=full */
#define E1000_STATUS_LU 0x00000002 /* Link up.0=no,1=link */
#define E1000_STATUS_FUNC_MASK 0x0000000C /* PCI Function Mask */
#define E1000_STATUS_FUNC_0 0x00000000 /* Function 0 */
#define E1000_STATUS_FUNC_1 0x00000004 /* Function 1 */
#define E1000_STATUS_TXOFF 0x00000010 /* transmission paused */
#define E1000_STATUS_TBIMODE 0x00000020 /* TBI mode */
#define E1000_STATUS_SPEED_MASK 0x000000C0
#define E1000_STATUS_SPEED_10 0x00000000 /* Speed 10Mb/s */
#define E1000_STATUS_SPEED_100 0x00000040 /* Speed 100Mb/s */
#define E1000_STATUS_SPEED_1000 0x00000080 /* Speed 1000Mb/s */
#define E1000_STATUS_ASDV 0x00000300 /* Auto speed detect value */
#define E1000_STATUS_MTXCKOK 0x00000400 /* MTX clock running OK */
#define E1000_STATUS_PCI66 0x00000800 /* In 66Mhz slot */
#define E1000_STATUS_BUS64 0x00001000 /* In 64 bit slot */
#define E1000_STATUS_PCIX_MODE 0x00002000 /* PCI-X mode */
#define E1000_STATUS_PCIX_SPEED 0x0000C000 /* PCI-X bus speed */
/* Constants used to intrepret the masked PCI-X bus speed. */
#define E1000_STATUS_PCIX_SPEED_66 0x00000000 /* PCI-X bus speed 50-66 MHz */
#define E1000_STATUS_PCIX_SPEED_100 0x00004000 /* PCI-X bus speed 66-100 MHz */
#define E1000_STATUS_PCIX_SPEED_133 0x00008000 /* PCI-X bus speed 100-133 MHz */
/* EEPROM/Flash Control */
#define E1000_EECD_SK 0x00000001 /* EEPROM Clock */
#define E1000_EECD_CS 0x00000002 /* EEPROM Chip Select */
#define E1000_EECD_DI 0x00000004 /* EEPROM Data In */
#define E1000_EECD_DO 0x00000008 /* EEPROM Data Out */
#define E1000_EECD_FWE_MASK 0x00000030
#define E1000_EECD_FWE_DIS 0x00000010 /* Disable FLASH writes */
#define E1000_EECD_FWE_EN 0x00000020 /* Enable FLASH writes */
#define E1000_EECD_FWE_SHIFT 4
#define E1000_EECD_SIZE 0x00000200 /* EEPROM Size (0=64 word 1=256 word) */
#define E1000_EECD_REQ 0x00000040 /* EEPROM Access Request */
#define E1000_EECD_GNT 0x00000080 /* EEPROM Access Grant */
#define E1000_EECD_PRES 0x00000100 /* EEPROM Present */
/* EEPROM Read */
#define E1000_EERD_START 0x00000001 /* Start Read */
#define E1000_EERD_DONE 0x00000010 /* Read Done */
#define E1000_EERD_ADDR_SHIFT 8
#define E1000_EERD_ADDR_MASK 0x0000FF00 /* Read Address */
#define E1000_EERD_DATA_SHIFT 16
#define E1000_EERD_DATA_MASK 0xFFFF0000 /* Read Data */
/* Extended Device Control */
#define E1000_CTRL_EXT_GPI0_EN 0x00000001 /* Maps SDP4 to GPI0 */
#define E1000_CTRL_EXT_GPI1_EN 0x00000002 /* Maps SDP5 to GPI1 */
#define E1000_CTRL_EXT_PHYINT_EN E1000_CTRL_EXT_GPI1_EN
#define E1000_CTRL_EXT_GPI2_EN 0x00000004 /* Maps SDP6 to GPI2 */
#define E1000_CTRL_EXT_GPI3_EN 0x00000008 /* Maps SDP7 to GPI3 */
#define E1000_CTRL_EXT_SDP4_DATA 0x00000010 /* Value of SW Defineable Pin 4 */
#define E1000_CTRL_EXT_SDP5_DATA 0x00000020 /* Value of SW Defineable Pin 5 */
#define E1000_CTRL_EXT_PHY_INT E1000_CTRL_EXT_SDP5_DATA
#define E1000_CTRL_EXT_SDP6_DATA 0x00000040 /* Value of SW Defineable Pin 6 */
#define E1000_CTRL_EXT_SDP7_DATA 0x00000080 /* Value of SW Defineable Pin 7 */
#define E1000_CTRL_EXT_SDP4_DIR 0x00000100 /* Direction of SDP4 0=in 1=out */
#define E1000_CTRL_EXT_SDP5_DIR 0x00000200 /* Direction of SDP5 0=in 1=out */
#define E1000_CTRL_EXT_SDP6_DIR 0x00000400 /* Direction of SDP6 0=in 1=out */
#define E1000_CTRL_EXT_SDP7_DIR 0x00000800 /* Direction of SDP7 0=in 1=out */
#define E1000_CTRL_EXT_ASDCHK 0x00001000 /* Initiate an ASD sequence */
#define E1000_CTRL_EXT_EE_RST 0x00002000 /* Reinitialize from EEPROM */
#define E1000_CTRL_EXT_IPS 0x00004000 /* Invert Power State */
#define E1000_CTRL_EXT_SPD_BYPS 0x00008000 /* Speed Select Bypass */
#define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000
#define E1000_CTRL_EXT_LINK_MODE_GMII 0x00000000
#define E1000_CTRL_EXT_LINK_MODE_TBI 0x00C00000
#define E1000_CTRL_EXT_WR_WMARK_MASK 0x03000000
#define E1000_CTRL_EXT_WR_WMARK_256 0x00000000
#define E1000_CTRL_EXT_WR_WMARK_320 0x01000000
#define E1000_CTRL_EXT_WR_WMARK_384 0x02000000
#define E1000_CTRL_EXT_WR_WMARK_448 0x03000000
/* MDI Control */
#define E1000_MDIC_DATA_MASK 0x0000FFFF
#define E1000_MDIC_REG_MASK 0x001F0000
#define E1000_MDIC_REG_SHIFT 16
#define E1000_MDIC_PHY_MASK 0x03E00000
#define E1000_MDIC_PHY_SHIFT 21
#define E1000_MDIC_OP_WRITE 0x04000000
#define E1000_MDIC_OP_READ 0x08000000
#define E1000_MDIC_READY 0x10000000
#define E1000_MDIC_INT_EN 0x20000000
#define E1000_MDIC_ERROR 0x40000000
/* LED Control */
#define E1000_LEDCTL_LED0_MODE_MASK 0x0000000F
#define E1000_LEDCTL_LED0_MODE_SHIFT 0
#define E1000_LEDCTL_LED0_IVRT 0x00000040
#define E1000_LEDCTL_LED0_BLINK 0x00000080
#define E1000_LEDCTL_LED1_MODE_MASK 0x00000F00
#define E1000_LEDCTL_LED1_MODE_SHIFT 8
#define E1000_LEDCTL_LED1_IVRT 0x00004000
#define E1000_LEDCTL_LED1_BLINK 0x00008000
#define E1000_LEDCTL_LED2_MODE_MASK 0x000F0000
#define E1000_LEDCTL_LED2_MODE_SHIFT 16
#define E1000_LEDCTL_LED2_IVRT 0x00400000
#define E1000_LEDCTL_LED2_BLINK 0x00800000
#define E1000_LEDCTL_LED3_MODE_MASK 0x0F000000
#define E1000_LEDCTL_LED3_MODE_SHIFT 24
#define E1000_LEDCTL_LED3_IVRT 0x40000000
#define E1000_LEDCTL_LED3_BLINK 0x80000000
#define E1000_LEDCTL_MODE_LINK_10_1000 0x0
#define E1000_LEDCTL_MODE_LINK_100_1000 0x1
#define E1000_LEDCTL_MODE_LINK_UP 0x2
#define E1000_LEDCTL_MODE_ACTIVITY 0x3
#define E1000_LEDCTL_MODE_LINK_ACTIVITY 0x4
#define E1000_LEDCTL_MODE_LINK_10 0x5
#define E1000_LEDCTL_MODE_LINK_100 0x6
#define E1000_LEDCTL_MODE_LINK_1000 0x7
#define E1000_LEDCTL_MODE_PCIX_MODE 0x8
#define E1000_LEDCTL_MODE_FULL_DUPLEX 0x9
#define E1000_LEDCTL_MODE_COLLISION 0xA
#define E1000_LEDCTL_MODE_BUS_SPEED 0xB
#define E1000_LEDCTL_MODE_BUS_SIZE 0xC
#define E1000_LEDCTL_MODE_PAUSED 0xD
#define E1000_LEDCTL_MODE_LED_ON 0xE
#define E1000_LEDCTL_MODE_LED_OFF 0xF
/* Receive Address */
#define E1000_RAH_AV 0x80000000 /* Receive descriptor valid */
/* Interrupt Cause Read */
#define E1000_ICR_TXDW 0x00000001 /* Transmit desc written back */
#define E1000_ICR_TXQE 0x00000002 /* Transmit Queue empty */
#define E1000_ICR_LSC 0x00000004 /* Link Status Change */
#define E1000_ICR_RXSEQ 0x00000008 /* rx sequence error */
#define E1000_ICR_RXDMT0 0x00000010 /* rx desc min. threshold (0) */
#define E1000_ICR_RXO 0x00000040 /* rx overrun */
#define E1000_ICR_RXT0 0x00000080 /* rx timer intr (ring 0) */
#define E1000_ICR_MDAC 0x00000200 /* MDIO access complete */
#define E1000_ICR_RXCFG 0x00000400 /* RX /c/ ordered set */
#define E1000_ICR_GPI_EN0 0x00000800 /* GP Int 0 */
#define E1000_ICR_GPI_EN1 0x00001000 /* GP Int 1 */
#define E1000_ICR_GPI_EN2 0x00002000 /* GP Int 2 */
#define E1000_ICR_GPI_EN3 0x00004000 /* GP Int 3 */
#define E1000_ICR_TXD_LOW 0x00008000
#define E1000_ICR_SRPD 0x00010000
/* Interrupt Cause Set */
#define E1000_ICS_TXDW E1000_ICR_TXDW /* Transmit desc written back */
#define E1000_ICS_TXQE E1000_ICR_TXQE /* Transmit Queue empty */
#define E1000_ICS_LSC E1000_ICR_LSC /* Link Status Change */
#define E1000_ICS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */
#define E1000_ICS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */
#define E1000_ICS_RXO E1000_ICR_RXO /* rx overrun */
#define E1000_ICS_RXT0 E1000_ICR_RXT0 /* rx timer intr */
#define E1000_ICS_MDAC E1000_ICR_MDAC /* MDIO access complete */
#define E1000_ICS_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */
#define E1000_ICS_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */
#define E1000_ICS_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */
#define E1000_ICS_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */
#define E1000_ICS_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */
#define E1000_ICS_TXD_LOW E1000_ICR_TXD_LOW
#define E1000_ICS_SRPD E1000_ICR_SRPD
/* Interrupt Mask Set */
#define E1000_IMS_TXDW E1000_ICR_TXDW /* Transmit desc written back */
#define E1000_IMS_TXQE E1000_ICR_TXQE /* Transmit Queue empty */
#define E1000_IMS_LSC E1000_ICR_LSC /* Link Status Change */
#define E1000_IMS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */
#define E1000_IMS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */
#define E1000_IMS_RXO E1000_ICR_RXO /* rx overrun */
#define E1000_IMS_RXT0 E1000_ICR_RXT0 /* rx timer intr */
#define E1000_IMS_MDAC E1000_ICR_MDAC /* MDIO access complete */
#define E1000_IMS_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */
#define E1000_IMS_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */
#define E1000_IMS_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */
#define E1000_IMS_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */
#define E1000_IMS_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */
#define E1000_IMS_TXD_LOW E1000_ICR_TXD_LOW
#define E1000_IMS_SRPD E1000_ICR_SRPD
/* Interrupt Mask Clear */
#define E1000_IMC_TXDW E1000_ICR_TXDW /* Transmit desc written back */
#define E1000_IMC_TXQE E1000_ICR_TXQE /* Transmit Queue empty */
#define E1000_IMC_LSC E1000_ICR_LSC /* Link Status Change */
#define E1000_IMC_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */
#define E1000_IMC_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */
#define E1000_IMC_RXO E1000_ICR_RXO /* rx overrun */
#define E1000_IMC_RXT0 E1000_ICR_RXT0 /* rx timer intr */
#define E1000_IMC_MDAC E1000_ICR_MDAC /* MDIO access complete */
#define E1000_IMC_RXCFG E1000_ICR_RXCFG /* RX /c/ ordered set */
#define E1000_IMC_GPI_EN0 E1000_ICR_GPI_EN0 /* GP Int 0 */
#define E1000_IMC_GPI_EN1 E1000_ICR_GPI_EN1 /* GP Int 1 */
#define E1000_IMC_GPI_EN2 E1000_ICR_GPI_EN2 /* GP Int 2 */
#define E1000_IMC_GPI_EN3 E1000_ICR_GPI_EN3 /* GP Int 3 */
#define E1000_IMC_TXD_LOW E1000_ICR_TXD_LOW
#define E1000_IMC_SRPD E1000_ICR_SRPD
/* Receive Control */
#define E1000_RCTL_RST 0x00000001 /* Software reset */
#define E1000_RCTL_EN 0x00000002 /* enable */
#define E1000_RCTL_SBP 0x00000004 /* store bad packet */
#define E1000_RCTL_UPE 0x00000008 /* unicast promiscuous enable */
#define E1000_RCTL_MPE 0x00000010 /* multicast promiscuous enab */
#define E1000_RCTL_LPE 0x00000020 /* long packet enable */
#define E1000_RCTL_LBM_NO 0x00000000 /* no loopback mode */
#define E1000_RCTL_LBM_MAC 0x00000040 /* MAC loopback mode */
#define E1000_RCTL_LBM_SLP 0x00000080 /* serial link loopback mode */
#define E1000_RCTL_LBM_TCVR 0x000000C0 /* tcvr loopback mode */
#define E1000_RCTL_RDMTS_HALF 0x00000000 /* rx desc min threshold size */
#define E1000_RCTL_RDMTS_QUAT 0x00000100 /* rx desc min threshold size */
#define E1000_RCTL_RDMTS_EIGTH 0x00000200 /* rx desc min threshold size */
#define E1000_RCTL_MO_SHIFT 12 /* multicast offset shift */
#define E1000_RCTL_MO_0 0x00000000 /* multicast offset 11:0 */
#define E1000_RCTL_MO_1 0x00001000 /* multicast offset 12:1 */
#define E1000_RCTL_MO_2 0x00002000 /* multicast offset 13:2 */
#define E1000_RCTL_MO_3 0x00003000 /* multicast offset 15:4 */
#define E1000_RCTL_MDR 0x00004000 /* multicast desc ring 0 */
#define E1000_RCTL_BAM 0x00008000 /* broadcast enable */
/* these buffer sizes are valid if E1000_RCTL_BSEX is 0 */
#define E1000_RCTL_SZ_2048 0x00000000 /* rx buffer size 2048 */
#define E1000_RCTL_SZ_1024 0x00010000 /* rx buffer size 1024 */
#define E1000_RCTL_SZ_512 0x00020000 /* rx buffer size 512 */
#define E1000_RCTL_SZ_256 0x00030000 /* rx buffer size 256 */
/* these buffer sizes are valid if E1000_RCTL_BSEX is 1 */
#define E1000_RCTL_SZ_16384 0x00010000 /* rx buffer size 16384 */
#define E1000_RCTL_SZ_8192 0x00020000 /* rx buffer size 8192 */
#define E1000_RCTL_SZ_4096 0x00030000 /* rx buffer size 4096 */
#define E1000_RCTL_VFE 0x00040000 /* vlan filter enable */
#define E1000_RCTL_CFIEN 0x00080000 /* canonical form enable */
#define E1000_RCTL_CFI 0x00100000 /* canonical form indicator */
#define E1000_RCTL_DPF 0x00400000 /* discard pause frames */
#define E1000_RCTL_PMCF 0x00800000 /* pass MAC control frames */
#define E1000_RCTL_BSEX 0x02000000 /* Buffer size extension */
/* Receive Descriptor */
#define E1000_RDT_DELAY 0x0000ffff /* Delay timer (1=1024us) */
#define E1000_RDT_FPDB 0x80000000 /* Flush descriptor block */
#define E1000_RDLEN_LEN 0x0007ff80 /* descriptor length */
#define E1000_RDH_RDH 0x0000ffff /* receive descriptor head */
#define E1000_RDT_RDT 0x0000ffff /* receive descriptor tail */
/* Flow Control */
#define E1000_FCRTH_RTH 0x0000FFF8 /* Mask Bits[15:3] for RTH */
#define E1000_FCRTH_XFCE 0x80000000 /* External Flow Control Enable */
#define E1000_FCRTL_RTL 0x0000FFF8 /* Mask Bits[15:3] for RTL */
#define E1000_FCRTL_XONE 0x80000000 /* Enable XON frame transmission */
/* Receive Descriptor Control */
#define E1000_RXDCTL_PTHRESH 0x0000003F /* RXDCTL Prefetch Threshold */
#define E1000_RXDCTL_HTHRESH 0x00003F00 /* RXDCTL Host Threshold */
#define E1000_RXDCTL_WTHRESH 0x003F0000 /* RXDCTL Writeback Threshold */
#define E1000_RXDCTL_GRAN 0x01000000 /* RXDCTL Granularity */
/* Transmit Descriptor Control */
#define E1000_TXDCTL_PTHRESH 0x000000FF /* TXDCTL Prefetch Threshold */
#define E1000_TXDCTL_HTHRESH 0x0000FF00 /* TXDCTL Host Threshold */
#define E1000_TXDCTL_WTHRESH 0x00FF0000 /* TXDCTL Writeback Threshold */
#define E1000_TXDCTL_GRAN 0x01000000 /* TXDCTL Granularity */
#define E1000_TXDCTL_LWTHRESH 0xFE000000 /* TXDCTL Low Threshold */
/* Transmit Configuration Word */
#define E1000_TXCW_FD 0x00000020 /* TXCW full duplex */
#define E1000_TXCW_HD 0x00000040 /* TXCW half duplex */
#define E1000_TXCW_PAUSE 0x00000080 /* TXCW sym pause request */
#define E1000_TXCW_ASM_DIR 0x00000100 /* TXCW astm pause direction */
#define E1000_TXCW_PAUSE_MASK 0x00000180 /* TXCW pause request mask */
#define E1000_TXCW_RF 0x00003000 /* TXCW remote fault */
#define E1000_TXCW_NP 0x00008000 /* TXCW next page */
#define E1000_TXCW_CW 0x0000ffff /* TxConfigWord mask */
#define E1000_TXCW_TXC 0x40000000 /* Transmit Config control */
#define E1000_TXCW_ANE 0x80000000 /* Auto-neg enable */
/* Receive Configuration Word */
#define E1000_RXCW_CW 0x0000ffff /* RxConfigWord mask */
#define E1000_RXCW_NC 0x04000000 /* Receive config no carrier */
#define E1000_RXCW_IV 0x08000000 /* Receive config invalid */
#define E1000_RXCW_CC 0x10000000 /* Receive config change */
#define E1000_RXCW_C 0x20000000 /* Receive config */
#define E1000_RXCW_SYNCH 0x40000000 /* Receive config synch */
#define E1000_RXCW_ANC 0x80000000 /* Auto-neg complete */
/* Transmit Control */
#define E1000_TCTL_RST 0x00000001 /* software reset */
#define E1000_TCTL_EN 0x00000002 /* enable tx */
#define E1000_TCTL_BCE 0x00000004 /* busy check enable */
#define E1000_TCTL_PSP 0x00000008 /* pad short packets */
#define E1000_TCTL_CT 0x00000ff0 /* collision threshold */
#define E1000_TCTL_COLD 0x003ff000 /* collision distance */
#define E1000_TCTL_SWXOFF 0x00400000 /* SW Xoff transmission */
#define E1000_TCTL_PBE 0x00800000 /* Packet Burst Enable */
#define E1000_TCTL_RTLC 0x01000000 /* Re-transmit on late collision */
#define E1000_TCTL_NRTU 0x02000000 /* No Re-transmit on underrun */
/* Receive Checksum Control */
#define E1000_RXCSUM_PCSS_MASK 0x000000FF /* Packet Checksum Start */
#define E1000_RXCSUM_IPOFL 0x00000100 /* IPv4 checksum offload */
#define E1000_RXCSUM_TUOFL 0x00000200 /* TCP / UDP checksum offload */
#define E1000_RXCSUM_IPV6OFL 0x00000400 /* IPv6 checksum offload */
/* Definitions for power management and wakeup registers */
/* Wake Up Control */
#define E1000_WUC_APME 0x00000001 /* APM Enable */
#define E1000_WUC_PME_EN 0x00000002 /* PME Enable */
#define E1000_WUC_PME_STATUS 0x00000004 /* PME Status */
#define E1000_WUC_APMPME 0x00000008 /* Assert PME on APM Wakeup */
/* Wake Up Filter Control */
#define E1000_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */
#define E1000_WUFC_MAG 0x00000002 /* Magic Packet Wakeup Enable */
#define E1000_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */
#define E1000_WUFC_MC 0x00000008 /* Directed Multicast Wakeup Enable */
#define E1000_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */
#define E1000_WUFC_ARP 0x00000020 /* ARP Request Packet Wakeup Enable */
#define E1000_WUFC_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Enable */
#define E1000_WUFC_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Enable */
#define E1000_WUFC_FLX0 0x00010000 /* Flexible Filter 0 Enable */
#define E1000_WUFC_FLX1 0x00020000 /* Flexible Filter 1 Enable */
#define E1000_WUFC_FLX2 0x00040000 /* Flexible Filter 2 Enable */
#define E1000_WUFC_FLX3 0x00080000 /* Flexible Filter 3 Enable */
#define E1000_WUFC_ALL_FILTERS 0x000F00FF /* Mask for all wakeup filters */
#define E1000_WUFC_FLX_OFFSET 16 /* Offset to the Flexible Filters bits */
#define E1000_WUFC_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */
/* Wake Up Status */
#define E1000_WUS_LNKC 0x00000001 /* Link Status Changed */
#define E1000_WUS_MAG 0x00000002 /* Magic Packet Received */
#define E1000_WUS_EX 0x00000004 /* Directed Exact Received */
#define E1000_WUS_MC 0x00000008 /* Directed Multicast Received */
#define E1000_WUS_BC 0x00000010 /* Broadcast Received */
#define E1000_WUS_ARP 0x00000020 /* ARP Request Packet Received */
#define E1000_WUS_IPV4 0x00000040 /* Directed IPv4 Packet Wakeup Received */
#define E1000_WUS_IPV6 0x00000080 /* Directed IPv6 Packet Wakeup Received */
#define E1000_WUS_FLX0 0x00010000 /* Flexible Filter 0 Match */
#define E1000_WUS_FLX1 0x00020000 /* Flexible Filter 1 Match */
#define E1000_WUS_FLX2 0x00040000 /* Flexible Filter 2 Match */
#define E1000_WUS_FLX3 0x00080000 /* Flexible Filter 3 Match */
#define E1000_WUS_FLX_FILTERS 0x000F0000 /* Mask for the 4 flexible filters */
/* Management Control */
#define E1000_MANC_SMBUS_EN 0x00000001 /* SMBus Enabled - RO */
#define E1000_MANC_ASF_EN 0x00000002 /* ASF Enabled - RO */
#define E1000_MANC_R_ON_FORCE 0x00000004 /* Reset on Force TCO - RO */
#define E1000_MANC_RMCP_EN 0x00000100 /* Enable RCMP 026Fh Filtering */
#define E1000_MANC_0298_EN 0x00000200 /* Enable RCMP 0298h Filtering */
#define E1000_MANC_IPV4_EN 0x00000400 /* Enable IPv4 */
#define E1000_MANC_IPV6_EN 0x00000800 /* Enable IPv6 */
#define E1000_MANC_SNAP_EN 0x00001000 /* Accept LLC/SNAP */
#define E1000_MANC_ARP_EN 0x00002000 /* Enable ARP Request Filtering */
#define E1000_MANC_NEIGHBOR_EN 0x00004000 /* Enable Neighbor Discovery
* Filtering */
#define E1000_MANC_TCO_RESET 0x00010000 /* TCO Reset Occurred */
#define E1000_MANC_RCV_TCO_EN 0x00020000 /* Receive TCO Packets Enabled */
#define E1000_MANC_REPORT_STATUS 0x00040000 /* Status Reporting Enabled */
#define E1000_MANC_SMB_REQ 0x01000000 /* SMBus Request */
#define E1000_MANC_SMB_GNT 0x02000000 /* SMBus Grant */
#define E1000_MANC_SMB_CLK_IN 0x04000000 /* SMBus Clock In */
#define E1000_MANC_SMB_DATA_IN 0x08000000 /* SMBus Data In */
#define E1000_MANC_SMB_DATA_OUT 0x10000000 /* SMBus Data Out */
#define E1000_MANC_SMB_CLK_OUT 0x20000000 /* SMBus Clock Out */
#define E1000_MANC_SMB_DATA_OUT_SHIFT 28 /* SMBus Data Out Shift */
#define E1000_MANC_SMB_CLK_OUT_SHIFT 29 /* SMBus Clock Out Shift */
/* Wake Up Packet Length */
#define E1000_WUPL_LENGTH_MASK 0x0FFF /* Only the lower 12 bits are valid */
#define E1000_MDALIGN 4096
/* EEPROM Commands */
#define EEPROM_READ_OPCODE 0x6 /* EERPOM read opcode */
#define EEPROM_WRITE_OPCODE 0x5 /* EERPOM write opcode */
#define EEPROM_ERASE_OPCODE 0x7 /* EERPOM erase opcode */
#define EEPROM_EWEN_OPCODE 0x13 /* EERPOM erase/write enable */
#define EEPROM_EWDS_OPCODE 0x10 /* EERPOM erast/write disable */
/* EEPROM Word Offsets */
#define EEPROM_INIT_CONTROL1_REG 0x000A
#define EEPROM_INIT_CONTROL2_REG 0x000F
#define EEPROM_FLASH_VERSION 0x0032
#define EEPROM_CHECKSUM_REG 0x003F
/* Mask bits for fields in Word 0x0a of the EEPROM */
#define EEPROM_WORD0A_ILOS 0x0010
#define EEPROM_WORD0A_SWDPIO 0x01E0
#define EEPROM_WORD0A_LRST 0x0200
#define EEPROM_WORD0A_FD 0x0400
#define EEPROM_WORD0A_66MHZ 0x0800
/* Mask bits for fields in Word 0x0f of the EEPROM */
#define EEPROM_WORD0F_PAUSE_MASK 0x3000
#define EEPROM_WORD0F_PAUSE 0x1000
#define EEPROM_WORD0F_ASM_DIR 0x2000
#define EEPROM_WORD0F_ANE 0x0800
#define EEPROM_WORD0F_SWPDIO_EXT 0x00F0
/* For checksumming, the sum of all words in the EEPROM should equal 0xBABA. */
#define EEPROM_SUM 0xBABA
/* EEPROM Map defines (WORD OFFSETS)*/
#define EEPROM_NODE_ADDRESS_BYTE_0 0
#define EEPROM_PBA_BYTE_1 8
/* EEPROM Map Sizes (Byte Counts) */
#define PBA_SIZE 4
/* Collision related configuration parameters */
#define E1000_COLLISION_THRESHOLD 16
#define E1000_CT_SHIFT 4
#define E1000_FDX_COLLISION_DISTANCE 64
#define E1000_HDX_COLLISION_DISTANCE 64
#define E1000_GB_HDX_COLLISION_DISTANCE 512
#define E1000_COLD_SHIFT 12
/* The number of Transmit and Receive Descriptors must be a multiple of 8 */
#define REQ_TX_DESCRIPTOR_MULTIPLE 8
#define REQ_RX_DESCRIPTOR_MULTIPLE 8
/* Default values for the transmit IPG register */
#define DEFAULT_82542_TIPG_IPGT 10
#define DEFAULT_82543_TIPG_IPGT_FIBER 9
#define DEFAULT_82543_TIPG_IPGT_COPPER 8
#define E1000_TIPG_IPGT_MASK 0x000003FF
#define E1000_TIPG_IPGR1_MASK 0x000FFC00
#define E1000_TIPG_IPGR2_MASK 0x3FF00000
#define DEFAULT_82542_TIPG_IPGR1 2
#define DEFAULT_82543_TIPG_IPGR1 8
#define E1000_TIPG_IPGR1_SHIFT 10
#define DEFAULT_82542_TIPG_IPGR2 10
#define DEFAULT_82543_TIPG_IPGR2 6
#define E1000_TIPG_IPGR2_SHIFT 20
#define E1000_TXDMAC_DPP 0x00000001
/* PBA constants */
#define E1000_PBA_16K 0x0010 /* 16KB, default TX allocation */
#define E1000_PBA_24K 0x0018
#define E1000_PBA_40K 0x0028
#define E1000_PBA_48K 0x0030 /* 48KB, default RX allocation */
/* Flow Control Constants */
#define FLOW_CONTROL_ADDRESS_LOW 0x00C28001
#define FLOW_CONTROL_ADDRESS_HIGH 0x00000100
#define FLOW_CONTROL_TYPE 0x8808
/* The historical defaults for the flow control values are given below. */
#define FC_DEFAULT_HI_THRESH (0x8000) /* 32KB */
#define FC_DEFAULT_LO_THRESH (0x4000) /* 16KB */
#define FC_DEFAULT_TX_TIMER (0x100) /* ~130 us */
/* The number of bits that we need to shift right to move the "pause"
* bits from the EEPROM (bits 13:12) to the "pause" (bits 8:7) field
* in the TXCW register
*/
#define PAUSE_SHIFT 5
/* The number of bits that we need to shift left to move the "SWDPIO"
* bits from the EEPROM (bits 8:5) to the "SWDPIO" (bits 25:22) field
* in the CTRL register
*/
#define SWDPIO_SHIFT 17
/* The number of bits that we need to shift left to move the "SWDPIO_EXT"
* bits from the EEPROM word F (bits 7:4) to the bits 11:8 of The
* Extended CTRL register.
* in the CTRL register
*/
#define SWDPIO__EXT_SHIFT 4
/* The number of bits that we need to shift left to move the "ILOS"
* bit from the EEPROM (bit 4) to the "ILOS" (bit 7) field
* in the CTRL register
*/
#define ILOS_SHIFT 3
#define RECEIVE_BUFFER_ALIGN_SIZE (256)
/* The number of milliseconds we wait for auto-negotiation to complete */
#define LINK_UP_TIMEOUT 500
#define E1000_TX_BUFFER_SIZE ((uint32_t)1514)
/* The carrier extension symbol, as received by the NIC. */
#define CARRIER_EXTENSION 0x0F
/* TBI_ACCEPT macro definition:
*
* If Tbi Compatibility mode is turned-on, then we should accept frames with
* receive errors if and only if:
* 1) errors is equal to the CRC error bit.
* 2) The last byte is a Carrier extension (0x0F).
* 3) The frame length (as reported by Hardware) is greater than 64 (60
* if a VLAN tag was stripped from the frame.
* 4) " " " " " " " <= max_frame_size+1.
*
* This macro requires:
* adapter = a pointer to struct e1000_shared_adapter
* special = the 16 bit special field of the RX descriptor with EOP set
* error = the 8 bit error field of the RX descriptor with EOP set
* length = the sum of all the length fields of the RX descriptors that
* make up the current frame
* last_byte = the last byte of the frame DMAed by the hardware
* max_frame_length = the maximum frame length we want to accept.
* min_frame_length = the minimum frame length we want to accept.
*
* This macro is a conditional that should be used in the interrupt
* handler's Rx processing routine when RxErrors have been detected.
*
* Typical use:
* ...
* if (TBI_ACCEPT) {
* accept_frame = TRUE;
* e1000_tbi_adjust_stats(adapter, MacAddress);
* frame_length--;
* } else {
* accept_frame = FALSE;
* }
* ...
*/
#define TBI_ACCEPT(adapter, special, errors, length, last_byte) \
((adapter)->tbi_compatibility_on && \
(((errors) & E1000_RXD_ERR_FRAME_ERR_MASK) == E1000_RXD_ERR_CE) && \
((last_byte) == CARRIER_EXTENSION) && \
((length) <= ((adapter)->max_frame_size + 1)) && \
((length) > ((special == 0x0000) ? \
((adapter)->min_frame_size) : \
((adapter)->min_frame_size - VLAN_TAG_SIZE))))
#endif /* _E1000_MAC_H_ */
drivers/net/e1000/e1000_main.c 0 → 100644
View file @ 87a54bc3
/*******************************************************************************
This software program is available to you under a choice of one of two
licenses. You may choose to be licensed under either the GNU General Public
License (GPL) Version 2, June 1991, available at
http://www.fsf.org/copyleft/gpl.html, or the Intel BSD + Patent License, the
text of which follows:
Recipient has requested a license and Intel Corporation ("Intel") is willing
to grant a license for the software entitled Linux Base Driver for the
Intel(R) PRO/1000 Family of Adapters (e1000) (the "Software") being provided
by Intel Corporation. The following definitions apply to this license:
"Licensed Patents" means patent claims licensable by Intel Corporation which
are necessarily infringed by the use of sale of the Software alone or when
combined with the operating system referred to below.
"Recipient" means the party to whom Intel delivers this Software.
"Licensee" means Recipient and those third parties that receive a license to
any operating system available under the GNU Public License version 2.0 or
later.
Copyright (c) 1999 - 2002 Intel Corporation.
All rights reserved.
The license is provided to Recipient and Recipient's Licensees under the
following terms.
Redistribution and use in source and binary forms of the Software, with or
without modification, are permitted provided that the following conditions
are met:
Redistributions of source code of the Software may retain the above
copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form of the Software may reproduce the above
copyright notice, this list of conditions and the following disclaimer in
the documentation and/or materials provided with the distribution.
Neither the name of Intel Corporation nor the names of its contributors
shall be used to endorse or promote products derived from this Software
without specific prior written permission.
Intel hereby grants Recipient and Licensees a non-exclusive, worldwide,
royalty-free patent license under Licensed Patents to make, use, sell, offer
to sell, import and otherwise transfer the Software, if any, in source code
and object code form. This license shall include changes to the Software
that are error corrections or other minor changes to the Software that do
not add functionality or features when the Software is incorporated in any
version of an operating system that has been distributed under the GNU
General Public License 2.0 or later. This patent license shall apply to the
combination of the Software and any operating system licensed under the GNU
Public License version 2.0 or later if, at the time Intel provides the
Software to Recipient, such addition of the Software to the then publicly
available versions of such operating systems available under the GNU Public
License version 2.0 or later (whether in gold, beta or alpha form) causes
such combination to be covered by the Licensed Patents. The patent license
shall not apply to any other combinations which include the Software. NO
hardware per se is licensed hereunder.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR IT CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
ANY LOSS OF USE; DATA, OR PROFITS; OR BUSINESS INTERUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY, WHETHER IN 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.
*******************************************************************************/
#define __E1000_MAIN__
#include "e1000.h"
char e1000_driver_name[] = "e1000";
char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
char e1000_driver_version[] = "4.2.4-k1";
char e1000_copyright[] = "Copyright (c) 1999-2002 Intel Corporation.";
/* e1000_pci_tbl - PCI Device ID Table
*
* Private driver_data field (last one) stores an index into e1000_strings
* Wildcard entries (PCI_ANY_ID) should come last
* Last entry must be all 0s
*
* { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
* Class, Class Mask, String Index }
*/
static struct pci_device_id e1000_pci_tbl[] __devinitdata = {
/* Intel(R) PRO/1000 Network Connection */
{0x8086, 0x1000, 0x8086, 0x1000, 0, 0, 0},
{0x8086, 0x1001, 0x8086, 0x1003, 0, 0, 0},
{0x8086, 0x1004, 0x8086, 0x1004, 0, 0, 0},
{0x8086, 0x1008, 0x8086, 0x1107, 0, 0, 0},
{0x8086, 0x1009, 0x8086, 0x1109, 0, 0, 0},
{0x8086, 0x100C, 0x8086, 0x1112, 0, 0, 0},
/* Compaq Gigabit Ethernet Server Adapter */
{0x8086, 0x1000, 0x0E11, PCI_ANY_ID, 0, 0, 1},
{0x8086, 0x1001, 0x0E11, PCI_ANY_ID, 0, 0, 1},
{0x8086, 0x1004, 0x0E11, PCI_ANY_ID, 0, 0, 1},
/* IBM Mobile, Desktop & Server Adapters */
{0x8086, 0x1000, 0x1014, PCI_ANY_ID, 0, 0, 2},
{0x8086, 0x1001, 0x1014, PCI_ANY_ID, 0, 0, 2},
{0x8086, 0x1004, 0x1014, PCI_ANY_ID, 0, 0, 2},
/* Generic */
{0x8086, 0x1000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{0x8086, 0x1001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{0x8086, 0x1004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{0x8086, 0x1008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{0x8086, 0x1009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{0x8086, 0x100C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{0x8086, 0x100D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
/* required last entry */
{0,}
};
MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);
static char *e1000_strings[] = {
"Intel(R) PRO/1000 Network Connection",
"Compaq Gigabit Ethernet Server Adapter",
"IBM Mobile, Desktop & Server Adapters"
};
/* Local Function Prototypes */
int e1000_up(struct e1000_adapter *adapter);
void e1000_down(struct e1000_adapter *adapter);
static int e1000_init_module(void);
static void e1000_exit_module(void);
static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static void e1000_remove(struct pci_dev *pdev);
static void e1000_sw_init(struct e1000_adapter *adapter);
static int e1000_open(struct net_device *netdev);
static int e1000_close(struct net_device *netdev);
static int e1000_setup_tx_resources(struct e1000_adapter *adapter);
static int e1000_setup_rx_resources(struct e1000_adapter *adapter);
static void e1000_configure_tx(struct e1000_adapter *adapter);
static void e1000_configure_rx(struct e1000_adapter *adapter);
static void e1000_setup_rctl(struct e1000_adapter *adapter);
static void e1000_clean_tx_ring(struct e1000_adapter *adapter);
static void e1000_clean_rx_ring(struct e1000_adapter *adapter);
static void e1000_free_tx_resources(struct e1000_adapter *adapter);
static void e1000_free_rx_resources(struct e1000_adapter *adapter);
static void e1000_set_multi(struct net_device *netdev);
static void e1000_update_phy_info(unsigned long data);
static void e1000_watchdog(unsigned long data);
static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
static void e1000_tx_timeout(struct net_device *dev);
static struct net_device_stats * e1000_get_stats(struct net_device *netdev);
static int e1000_change_mtu(struct net_device *netdev, int new_mtu);
static int e1000_set_mac(struct net_device *netdev, void *p);
static void e1000_update_stats(struct e1000_adapter *adapter);
static inline void e1000_irq_disable(struct e1000_adapter *adapter);
static inline void e1000_irq_enable(struct e1000_adapter *adapter);
static void e1000_intr(int irq, void *data, struct pt_regs *regs);
static void e1000_clean_tx_irq(struct e1000_adapter *adapter);
static void e1000_clean_rx_irq(struct e1000_adapter *adapter);
static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter);
static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
static void e1000_reset(struct e1000_adapter *adapter);
static void e1000_enter_82542_rst(struct e1000_adapter *adapter);
static void e1000_leave_82542_rst(struct e1000_adapter *adapter);
static inline void e1000_rx_checksum(struct e1000_adapter *adapter,
struct e1000_rx_desc *rx_desc,
struct sk_buff *skb);
void e1000_enable_WOL(struct e1000_adapter *adapter);
/* Exported from other modules */
extern void e1000_check_options(struct e1000_adapter *adapter);
extern void e1000_proc_dev_setup(struct e1000_adapter *adapter);
extern void e1000_proc_dev_free(struct e1000_adapter *adapter);
extern int e1000_ethtool_ioctl(struct net_device *netdev, struct ifreq *ifr);
static struct pci_driver e1000_driver = {
name: e1000_driver_name,
id_table: e1000_pci_tbl,
probe: e1000_probe,
remove: e1000_remove,
/* Power Managment Hooks */
suspend: NULL,
resume: NULL
};
MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver");
MODULE_LICENSE("Dual BSD/GPL");
#ifdef EXPORT_SYMTAB
EXPORT_SYMBOL(e1000_init_module);
EXPORT_SYMBOL(e1000_exit_module);
EXPORT_SYMBOL(e1000_probe);
EXPORT_SYMBOL(e1000_remove);
EXPORT_SYMBOL(e1000_open);
EXPORT_SYMBOL(e1000_close);
EXPORT_SYMBOL(e1000_xmit_frame);
EXPORT_SYMBOL(e1000_intr);
EXPORT_SYMBOL(e1000_set_multi);
EXPORT_SYMBOL(e1000_change_mtu);
EXPORT_SYMBOL(e1000_set_mac);
EXPORT_SYMBOL(e1000_get_stats);
EXPORT_SYMBOL(e1000_watchdog);
EXPORT_SYMBOL(e1000_ioctl);
#endif
/**
* e1000_init_module - Driver Registration Routine
*
* e1000_init_module is the first routine called when the driver is
* loaded. All it does is register with the PCI subsystem.
**/
static int __init
e1000_init_module(void)
{
printk(KERN_INFO "%s - version %s\n",
e1000_driver_string, e1000_driver_version);
printk(KERN_INFO "%s\n", e1000_copyright);
return pci_module_init(&e1000_driver);
}
module_init(e1000_init_module);
/**
* e1000_exit_module - Driver Exit Cleanup Routine
*
* e1000_exit_module is called just before the driver is removed
* from memory.
**/
static void __exit
e1000_exit_module(void)
{
pci_unregister_driver(&e1000_driver);
return;
}
module_exit(e1000_exit_module);
int
e1000_up(struct e1000_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
if(request_irq(netdev->irq, &e1000_intr, SA_SHIRQ,
netdev->name, netdev))
return -1;
/* hardware has been reset, we need to reload some things */
e1000_set_multi(netdev);
e1000_configure_tx(adapter);
e1000_setup_rctl(adapter);
e1000_configure_rx(adapter);
e1000_alloc_rx_buffers(adapter);
e1000_clear_hw_cntrs(&adapter->shared);
mod_timer(&adapter->watchdog_timer, jiffies);
e1000_irq_enable(adapter);
return 0;
}
void
e1000_down(struct e1000_adapter *adapter)
{
struct e1000_shared_adapter *shared = &adapter->shared;
struct net_device *netdev = adapter->netdev;
e1000_irq_disable(adapter);
free_irq(netdev->irq, netdev);
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer);
netif_carrier_off(netdev);
netif_stop_queue(netdev);
/* disable the transmit and receive units */
E1000_WRITE_REG(shared, RCTL, 0);
E1000_WRITE_REG(shared, TCTL, E1000_TCTL_PSP);
/* delay to allow PCI transactions to complete */
msec_delay(10);
e1000_clean_tx_ring(adapter);
e1000_clean_rx_ring(adapter);
e1000_reset(adapter);
}
static void
e1000_reset(struct e1000_adapter *adapter)
{
struct e1000_shared_adapter *shared = &adapter->shared;
uint32_t ctrl_ext;
/* Repartition Pba for greater than 9k mtu
* To take effect CTRL.RST is required.
*/
if(adapter->rx_buffer_len > E1000_RXBUFFER_8192)
E1000_WRITE_REG(shared, PBA, E1000_JUMBO_PBA);
else
E1000_WRITE_REG(shared, PBA, E1000_DEFAULT_PBA);
/* 82542 2.0 needs MWI disabled while issuing a reset */
if(shared->mac_type == e1000_82542_rev2_0)
e1000_enter_82542_rst(adapter);
/* global reset */
E1000_WRITE_REG(shared, CTRL, E1000_CTRL_RST);
msec_delay(10);
/* EEPROM reload */
ctrl_ext = E1000_READ_REG(shared, CTRL_EXT);
ctrl_ext |= E1000_CTRL_EXT_EE_RST;
E1000_WRITE_REG(shared, CTRL_EXT, ctrl_ext);
msec_delay(5);
if(shared->mac_type == e1000_82542_rev2_0)
e1000_leave_82542_rst(adapter);
shared->tbi_compatibility_on = FALSE;
shared->fc = shared->original_fc;
e1000_init_hw(shared);
e1000_enable_WOL(adapter);
return;
}
/**
* e1000_probe - Device Initialization Routine
* @pdev: PCI device information struct
* @ent: entry in e1000_pci_tbl
*
* Returns 0 on success, negative on failure
*
* e1000_probe initializes an adapter identified by a pci_dev structure.
* The OS initialization, configuring of the adapter private structure,
* and a hardware reset occur.
**/
static int __devinit
e1000_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct net_device *netdev;
struct e1000_adapter *adapter;
static int cards_found = 0;
unsigned long mmio_start;
int mmio_len;
int i;
if((i = pci_enable_device(pdev)))
return i;
if((i = pci_set_dma_mask(pdev, E1000_DMA_MASK)))
return i;
if((i = pci_request_regions(pdev, e1000_driver_name)))
return i;
pci_set_master(pdev);
netdev = alloc_etherdev(sizeof(struct e1000_adapter));
if(!netdev)
goto err_alloc_etherdev;
SET_MODULE_OWNER(netdev);
pci_set_drvdata(pdev, netdev);
adapter = netdev->priv;
adapter->netdev = netdev;
adapter->pdev = pdev;
adapter->shared.back = adapter;
mmio_start = pci_resource_start(pdev, BAR_0);
mmio_len = pci_resource_len(pdev, BAR_0);
adapter->shared.hw_addr = ioremap(mmio_start, mmio_len);
if(!adapter->shared.hw_addr)
goto err_ioremap;
netdev->open = &e1000_open;
netdev->stop = &e1000_close;
netdev->hard_start_xmit = &e1000_xmit_frame;
netdev->get_stats = &e1000_get_stats;
netdev->set_multicast_list = &e1000_set_multi;
netdev->set_mac_address = &e1000_set_mac;
netdev->change_mtu = &e1000_change_mtu;
netdev->do_ioctl = &e1000_ioctl;
netdev->tx_timeout = &e1000_tx_timeout;
netdev->watchdog_timeo = HZ;
netdev->irq = pdev->irq;
netdev->base_addr = mmio_start;
adapter->bd_number = cards_found;
adapter->id_string = e1000_strings[ent->driver_data];
/* setup the private structure */
e1000_sw_init(adapter);
if(adapter->shared.mac_type >= e1000_82543) {
netdev->features = NETIF_F_SG |
NETIF_F_IP_CSUM |
NETIF_F_HIGHDMA;
} else {
netdev->features = NETIF_F_SG | NETIF_F_HIGHDMA;
}
/* make sure the EEPROM is good */
if(!e1000_validate_eeprom_checksum(&adapter->shared))
goto err_eeprom;
/* copy the MAC address out of the EEPROM */
e1000_read_mac_addr(&adapter->shared);
memcpy(netdev->dev_addr, adapter->shared.mac_addr, netdev->addr_len);
if(!is_valid_ether_addr(netdev->dev_addr))
goto err_eeprom;
e1000_read_part_num(&adapter->shared, &(adapter->part_num));
e1000_get_bus_info(&adapter->shared);
init_timer(&adapter->watchdog_timer);
adapter->watchdog_timer.function = &e1000_watchdog;
adapter->watchdog_timer.data = (unsigned long) adapter;
init_timer(&adapter->phy_info_timer);
adapter->phy_info_timer.function = &e1000_update_phy_info;
adapter->phy_info_timer.data = (unsigned long) adapter;
register_netdev(netdev);
/* we're going to reset, so assume we have no link for now */
netif_carrier_off(netdev);
netif_stop_queue(netdev);
printk(KERN_INFO "%s: %s\n", netdev->name, adapter->id_string);
e1000_check_options(adapter);
e1000_proc_dev_setup(adapter);
/* reset the hardware with the new settings */
e1000_reset(adapter);
cards_found++;
return 0;
err_eeprom:
iounmap(adapter->shared.hw_addr);
err_ioremap:
pci_release_regions(pdev);
kfree(netdev);
err_alloc_etherdev:
return -ENOMEM;
}
/**
* e1000_remove - Device Removal Routine
* @pdev: PCI device information struct
*
* e1000_remove is called by the PCI subsystem to alert the driver
* that it should release a PCI device. The could be caused by a
* Hot-Plug event, or because the driver is going to be removed from
* memory.
*
* This routine is also called to clean up from a failure in
* e1000_probe. The Adapter struct and netdev will always exist,
* all other pointers must be checked for NULL before freeing.
**/
static void __devexit
e1000_remove(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev->priv;
unregister_netdev(netdev);
e1000_phy_hw_reset(&adapter->shared);
e1000_proc_dev_free(adapter);
iounmap(adapter->shared.hw_addr);
pci_release_regions(pdev);
kfree(netdev);
return;
}
/**
* e1000_sw_init - Initialize general software structures (struct e1000_adapter)
* @adapter: board private structure to initialize
*
* e1000_sw_init initializes the Adapter private data structure.
* Fields are initialized based on PCI device information and
* OS network device settings (MTU size).
**/
static void __devinit
e1000_sw_init(struct e1000_adapter *adapter)
{
struct e1000_shared_adapter *shared = &adapter->shared;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
/* PCI config space info */
uint16_t *vendor = &shared->vendor_id;
uint16_t *device = &shared->device_id;
uint16_t *subvendor = &shared->subsystem_vendor_id;
uint16_t *subsystem = &shared->subsystem_id;
uint8_t *revision = &shared->revision_id;
pci_read_config_word(pdev, PCI_VENDOR_ID, vendor);
pci_read_config_word(pdev, PCI_DEVICE_ID, device);
pci_read_config_byte(pdev, PCI_REVISION_ID, revision);
pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, subvendor);
pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, subsystem);
pci_read_config_word(pdev, PCI_COMMAND, &shared->pci_cmd_word);
adapter->rx_buffer_len = E1000_RXBUFFER_2048;
shared->max_frame_size = netdev->mtu + ENET_HEADER_SIZE + CRC_LENGTH;
shared->min_frame_size = MINIMUM_ETHERNET_PACKET_SIZE + CRC_LENGTH;
/* identify the MAC */
switch (*device) {
case E1000_DEV_ID_82542:
switch (*revision) {
case E1000_82542_2_0_REV_ID:
shared->mac_type = e1000_82542_rev2_0;
break;
case E1000_82542_2_1_REV_ID:
shared->mac_type = e1000_82542_rev2_1;
break;
default:
shared->mac_type = e1000_82542_rev2_0;
E1000_ERR("Could not identify 82542 revision\n");
}
break;
case E1000_DEV_ID_82543GC_FIBER:
case E1000_DEV_ID_82543GC_COPPER:
shared->mac_type = e1000_82543;
break;
case E1000_DEV_ID_82544EI_COPPER:
case E1000_DEV_ID_82544EI_FIBER:
case E1000_DEV_ID_82544GC_COPPER:
case E1000_DEV_ID_82544GC_LOM:
shared->mac_type = e1000_82544;
break;
default:
/* should never have loaded on this device */
BUG();
}
/* flow control settings */
shared->fc_high_water = FC_DEFAULT_HI_THRESH;
shared->fc_low_water = FC_DEFAULT_LO_THRESH;
shared->fc_pause_time = FC_DEFAULT_TX_TIMER;
shared->fc_send_xon = 1;
/* Media type - copper or fiber */
if(shared->mac_type >= e1000_82543) {
uint32_t status = E1000_READ_REG(shared, STATUS);
if(status & E1000_STATUS_TBIMODE)
shared->media_type = e1000_media_type_fiber;
else
shared->media_type = e1000_media_type_copper;
} else {
shared->media_type = e1000_media_type_fiber;
}
if(shared->mac_type < e1000_82543)
shared->report_tx_early = 0;
else
shared->report_tx_early = 1;
shared->wait_autoneg_complete = FALSE;
shared->tbi_compatibility_en = TRUE;
atomic_set(&adapter->irq_sem, 1);
spin_lock_init(&adapter->stats_lock);
}
/**
* e1000_open - Called when a network interface is made active
* @netdev: network interface device structure
*
* Returns 0 on success, negative value on failure
*
* The open entry point is called when a network interface is made
* active by the system (IFF_UP). At this point all resources needed
* for transmit and receive operations are allocated, the interrupt
* handler is registered with the OS, the watchdog timer is started,
* and the stack is notified that the interface is ready.
**/
static int
e1000_open(struct net_device *netdev)
{
struct e1000_adapter *adapter = netdev->priv;
/* allocate transmit descriptors */
if(e1000_setup_tx_resources(adapter))
goto err_setup_tx;
/* allocate receive descriptors */
if(e1000_setup_rx_resources(adapter))
goto err_setup_rx;
if(e1000_up(adapter))
goto err_up;
return 0;
err_up:
e1000_free_rx_resources(adapter);
err_setup_rx:
e1000_free_tx_resources(adapter);
err_setup_tx:
e1000_reset(adapter);
return -EBUSY;
}
/**
* e1000_close - Disables a network interface
* @netdev: network interface device structure
*
* Returns 0, this is not allowed to fail
*
* The close entry point is called when an interface is de-activated
* by the OS. The hardware is still under the drivers control, but
* needs to be disabled. A global MAC reset is issued to stop the
* hardware, and all transmit and receive resources are freed.
**/
static int
e1000_close(struct net_device *netdev)
{
struct e1000_adapter *adapter = netdev->priv;
e1000_down(adapter);
e1000_free_tx_resources(adapter);
e1000_free_rx_resources(adapter);
return 0;
}
/**
* e1000_setup_tx_resources - allocate Tx resources (Descriptors)
* @adapter: board private structure
*
* Return 0 on success, negative on failure
*
* e1000_setup_tx_resources allocates all software transmit resources
* and enabled the Tx unit of the MAC.
**/
static int
e1000_setup_tx_resources(struct e1000_adapter *adapter)
{
struct e1000_desc_ring *txdr = &adapter->tx_ring;
struct pci_dev *pdev = adapter->pdev;
int size;
size = sizeof(struct e1000_buffer) * txdr->count;
txdr->buffer_info = kmalloc(size, GFP_KERNEL);
if(!txdr->buffer_info) {
return -ENOMEM;
}
memset(txdr->buffer_info, 0, size);
/* round up to nearest 4K */
txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
E1000_ROUNDUP(txdr->size, 4096);
txdr->desc = pci_alloc_consistent(pdev, txdr->size, &txdr->dma);
if(!txdr->desc) {
kfree(txdr->buffer_info);
return -ENOMEM;
}
memset(txdr->desc, 0, txdr->size);
atomic_set(&txdr->unused, txdr->count);
txdr->next_to_use = 0;
txdr->next_to_clean = 0;
return 0;
}
/**
* e1000_configure_tx - Configure 8254x Transmit Unit after Reset
* @adapter: board private structure
*
* Configure the Tx unit of the MAC after a reset.
**/
static void
e1000_configure_tx(struct e1000_adapter *adapter)
{
uint64_t tdba = adapter->tx_ring.dma;
uint32_t tdlen = adapter->tx_ring.count * sizeof(struct e1000_tx_desc);
uint32_t tctl, tipg;
E1000_WRITE_REG(&adapter->shared, TDBAL, (tdba & 0x00000000FFFFFFFF));
E1000_WRITE_REG(&adapter->shared, TDBAH, (tdba >> 32));
E1000_WRITE_REG(&adapter->shared, TDLEN, tdlen);
/* Setup the HW Tx Head and Tail descriptor pointers */
E1000_WRITE_REG(&adapter->shared, TDH, 0);
E1000_WRITE_REG(&adapter->shared, TDT, 0);
/* Set the default values for the Tx Inter Packet Gap timer */
switch (adapter->shared.mac_type) {
case e1000_82542_rev2_0:
case e1000_82542_rev2_1:
tipg = DEFAULT_82542_TIPG_IPGT;
tipg |= DEFAULT_82542_TIPG_IPGR1 << E1000_TIPG_IPGR1_SHIFT;
tipg |= DEFAULT_82542_TIPG_IPGR2 << E1000_TIPG_IPGR2_SHIFT;
break;
default:
if(adapter->shared.media_type == e1000_media_type_fiber)
tipg = DEFAULT_82543_TIPG_IPGT_FIBER;
else
tipg = DEFAULT_82543_TIPG_IPGT_COPPER;
tipg |= DEFAULT_82543_TIPG_IPGR1 << E1000_TIPG_IPGR1_SHIFT;
tipg |= DEFAULT_82543_TIPG_IPGR2 << E1000_TIPG_IPGR2_SHIFT;
}
E1000_WRITE_REG(&adapter->shared, TIPG, tipg);
/* Set the Tx Interrupt Delay register */
E1000_WRITE_REG(&adapter->shared, TIDV, adapter->tx_int_delay);
/* Program the Transmit Control Register */
tctl = E1000_TCTL_PSP | E1000_TCTL_EN |
(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
if(adapter->link_duplex == FULL_DUPLEX) {
tctl |= E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT;
} else {
tctl |= E1000_HDX_COLLISION_DISTANCE << E1000_COLD_SHIFT;
}
E1000_WRITE_REG(&adapter->shared, TCTL, tctl);
#ifdef CONFIG_PPC
if(adapter->shared.mac_type >= e1000_82543) {
E1000_WRITE_REG(&adapter->shared, TXDCTL, 0x00020000);
}
#endif
/* Setup Transmit Descriptor Settings for this adapter */
adapter->txd_cmd = E1000_TXD_CMD_IFCS;
if(adapter->tx_int_delay > 0)
adapter->txd_cmd |= E1000_TXD_CMD_IDE;
if(adapter->shared.report_tx_early == 1)
adapter->txd_cmd |= E1000_TXD_CMD_RS;
else
adapter->txd_cmd |= E1000_TXD_CMD_RPS;
return;
}
/**
* e1000_setup_rx_resources - allocate Rx resources (Descriptors, receive SKBs)
* @adapter: board private structure
*
* Returns 0 on success, negative on failure
*
* e1000_setup_rx_resources allocates all software receive resources
* and network buffers, and enables the Rx unit of the MAC.
**/
static int
e1000_setup_rx_resources(struct e1000_adapter *adapter)
{
struct e1000_desc_ring *rxdr = &adapter->rx_ring;
struct pci_dev *pdev = adapter->pdev;
int size;
size = sizeof(struct e1000_buffer) * rxdr->count;
rxdr->buffer_info = kmalloc(size, GFP_KERNEL);
if(!rxdr->buffer_info) {
return -ENOMEM;
}
memset(rxdr->buffer_info, 0, size);
/* Round up to nearest 4K */
rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc);
E1000_ROUNDUP(rxdr->size, 4096);
rxdr->desc = pci_alloc_consistent(pdev, rxdr->size, &rxdr->dma);
if(!rxdr->desc) {
kfree(rxdr->buffer_info);
return -ENOMEM;
}
memset(rxdr->desc, 0, rxdr->size);
rxdr->next_to_clean = 0;
rxdr->unused_count = rxdr->count;
rxdr->next_to_use = 0;
return 0;
}
/**
* e1000_setup_rctl - configure the receive control register
* @adapter: Board private structure
**/
static void
e1000_setup_rctl(struct e1000_adapter *adapter)
{
uint32_t rctl;
/* Setup the Receive Control Register */
rctl = E1000_RCTL_EN | E1000_RCTL_BAM |
E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
(adapter->shared.mc_filter_type << E1000_RCTL_MO_SHIFT);
if(adapter->shared.tbi_compatibility_on == 1)
rctl |= E1000_RCTL_SBP;
switch (adapter->rx_buffer_len) {
case E1000_RXBUFFER_2048:
default:
rctl |= E1000_RCTL_SZ_2048;
break;
case E1000_RXBUFFER_4096:
rctl |= E1000_RCTL_SZ_4096 | E1000_RCTL_BSEX | E1000_RCTL_LPE;
break;
case E1000_RXBUFFER_8192:
rctl |= E1000_RCTL_SZ_8192 | E1000_RCTL_BSEX | E1000_RCTL_LPE;
break;
case E1000_RXBUFFER_16384:
rctl |= E1000_RCTL_SZ_16384 | E1000_RCTL_BSEX | E1000_RCTL_LPE;
break;
}
E1000_WRITE_REG(&adapter->shared, RCTL, rctl);
}
/**
* e1000_configure_rx - Configure 8254x Receive Unit after Reset
* @adapter: board private structure
*
* Configure the Rx unit of the MAC after a reset.
**/
static void
e1000_configure_rx(struct e1000_adapter *adapter)
{
uint64_t rdba = adapter->rx_ring.dma;
uint32_t rdlen = adapter->rx_ring.count * sizeof(struct e1000_rx_desc);
uint32_t rctl;
uint32_t rxcsum;
/* make sure receives are disabled while setting up the descriptors */
rctl = E1000_READ_REG(&adapter->shared, RCTL);
E1000_WRITE_REG(&adapter->shared, RCTL, rctl & ~E1000_RCTL_EN);
/* set the Receive Delay Timer Register */
E1000_WRITE_REG(&adapter->shared, RDTR,
adapter->rx_int_delay | E1000_RDT_FPDB);
/* Setup the Base and Length of the Rx Descriptor Ring */
E1000_WRITE_REG(&adapter->shared, RDBAL, (rdba & 0x00000000FFFFFFFF));
E1000_WRITE_REG(&adapter->shared, RDBAH, (rdba >> 32));
E1000_WRITE_REG(&adapter->shared, RDLEN, rdlen);
/* Setup the HW Rx Head and Tail Descriptor Pointers */
E1000_WRITE_REG(&adapter->shared, RDH, 0);
E1000_WRITE_REG(&adapter->shared, RDT, 0);
/* Enable 82543 Receive Checksum Offload for TCP and UDP */
if((adapter->shared.mac_type >= e1000_82543) &&
(adapter->rx_csum == TRUE)) {
rxcsum = E1000_READ_REG(&adapter->shared, RXCSUM);
rxcsum |= E1000_RXCSUM_TUOFL;
E1000_WRITE_REG(&adapter->shared, RXCSUM, rxcsum);
}
#ifdef CONFIG_PPC
if(adapter->shared.mac_type >= e1000_82543) {
E1000_WRITE_REG(&adapter->shared, RXDCTL, 0x00020000);
}
#endif
/* Enable Receives */
E1000_WRITE_REG(&adapter->shared, RCTL, rctl);
return;
}
/**
* e1000_free_tx_resources - Free Tx Resources
* @adapter: board private structure
*
* Free all transmit software resources
**/
static void
e1000_free_tx_resources(struct e1000_adapter *adapter)
{
struct pci_dev *pdev = adapter->pdev;
e1000_clean_tx_ring(adapter);
kfree(adapter->tx_ring.buffer_info);
adapter->tx_ring.buffer_info = NULL;
pci_free_consistent(pdev, adapter->tx_ring.size,
adapter->tx_ring.desc, adapter->tx_ring.dma);
adapter->tx_ring.desc = NULL;
return;
}
/**
* e1000_clean_tx_ring - Free Tx Buffers
* @adapter: board private structure
**/
static void
e1000_clean_tx_ring(struct e1000_adapter *adapter)
{
struct pci_dev *pdev = adapter->pdev;
unsigned long size;
int i;
/* Free all the Tx ring sk_buffs */
for(i = 0; i < adapter->tx_ring.count; i++) {
if(adapter->tx_ring.buffer_info[i].skb) {
pci_unmap_page(pdev,
adapter->tx_ring.buffer_info[i].dma,
adapter->tx_ring.buffer_info[i].length,
PCI_DMA_TODEVICE);
dev_kfree_skb(adapter->tx_ring.buffer_info[i].skb);
adapter->tx_ring.buffer_info[i].skb = NULL;
}
}
size = sizeof(struct e1000_buffer) * adapter->tx_ring.count;
memset(adapter->tx_ring.buffer_info, 0, size);
/* Zero out the descriptor ring */
memset(adapter->tx_ring.desc, 0, adapter->tx_ring.size);
atomic_set(&adapter->tx_ring.unused, adapter->tx_ring.count);
adapter->tx_ring.next_to_use = 0;
adapter->tx_ring.next_to_clean = 0;
E1000_WRITE_REG(&adapter->shared, TDH, 0);
E1000_WRITE_REG(&adapter->shared, TDT, 0);
return;
}
/**
* e1000_free_rx_resources - Free Rx Resources
* @adapter: board private structure
*
* Free all receive software resources
**/
static void
e1000_free_rx_resources(struct e1000_adapter *adapter)
{
struct pci_dev *pdev = adapter->pdev;
e1000_clean_rx_ring(adapter);
kfree(adapter->rx_ring.buffer_info);
adapter->rx_ring.buffer_info = NULL;
pci_free_consistent(pdev, adapter->rx_ring.size,
adapter->rx_ring.desc, adapter->rx_ring.dma);
adapter->rx_ring.desc = NULL;
return;
}
/**
* e1000_clean_rx_ring - Free Rx Buffers
* @adapter: board private structure
**/
static void
e1000_clean_rx_ring(struct e1000_adapter *adapter)
{
struct pci_dev *pdev = adapter->pdev;
unsigned long size;
int i;
/* Free all the Rx ring sk_buffs */
for(i = 0; i < adapter->rx_ring.count; i++) {
if(adapter->rx_ring.buffer_info[i].skb) {
pci_unmap_single(pdev,
adapter->rx_ring.buffer_info[i].dma,
adapter->rx_ring.buffer_info[i].length,
PCI_DMA_FROMDEVICE);
dev_kfree_skb(adapter->rx_ring.buffer_info[i].skb);
adapter->rx_ring.buffer_info[i].skb = NULL;
}
}
size = sizeof(struct e1000_buffer) * adapter->rx_ring.count;
memset(adapter->rx_ring.buffer_info, 0, size);
/* Zero out the descriptor ring */
memset(adapter->rx_ring.desc, 0, adapter->rx_ring.size);
adapter->rx_ring.unused_count = adapter->rx_ring.count;
adapter->rx_ring.next_to_clean = 0;
adapter->rx_ring.next_to_use = 0;
E1000_WRITE_REG(&adapter->shared, RDH, 0);
E1000_WRITE_REG(&adapter->shared, RDT, 0);
return;
}
/* The 82542 2.0 (revision 2) needs to have the receive unit in reset
* and memory write and invalidate disabled for certain operations
*/
static void
e1000_enter_82542_rst(struct e1000_adapter *adapter)
{
struct pci_dev *pdev = adapter->pdev;
struct net_device *netdev = adapter->netdev;
uint16_t pci_command_word = adapter->shared.pci_cmd_word;
uint32_t rctl;
if(pci_command_word & PCI_COMMAND_INVALIDATE) {
pci_command_word &= ~PCI_COMMAND_INVALIDATE;
pci_write_config_word(pdev, PCI_COMMAND, pci_command_word);
}
rctl = E1000_READ_REG(&adapter->shared, RCTL);
rctl |= E1000_RCTL_RST;
E1000_WRITE_REG(&adapter->shared, RCTL, rctl);
msec_delay(5);
if(netif_running(netdev))
e1000_clean_rx_ring(adapter);
return;
}
static void
e1000_leave_82542_rst(struct e1000_adapter *adapter)
{
struct pci_dev *pdev = adapter->pdev;
struct net_device *netdev = adapter->netdev;
uint16_t pci_command_word = adapter->shared.pci_cmd_word;
uint32_t rctl;
rctl = E1000_READ_REG(&adapter->shared, RCTL);
rctl &= ~E1000_RCTL_RST;
E1000_WRITE_REG(&adapter->shared, RCTL, rctl);
msec_delay(5);
if(pci_command_word & PCI_COMMAND_INVALIDATE)
pci_write_config_word(pdev, PCI_COMMAND, pci_command_word);
if(netif_running(netdev)) {
e1000_configure_rx(adapter);
e1000_alloc_rx_buffers(adapter);
}
return;
}
/**
* e1000_set_mac - Change the Ethernet Address of the NIC
* @netdev: network interface device structure
* @p: pointer to an address structure
*
* Returns 0 on success, negative on failure
**/
static int
e1000_set_mac(struct net_device *netdev, void *p)
{
struct e1000_adapter *adapter = netdev->priv;
struct sockaddr *addr = p;
/* 82542 2.0 needs to be in reset to write receive address registers */
if(adapter->shared.mac_type == e1000_82542_rev2_0)
e1000_enter_82542_rst(adapter);
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
memcpy(adapter->shared.mac_addr, addr->sa_data, netdev->addr_len);
e1000_rar_set(&adapter->shared, adapter->shared.mac_addr, 0);
if(adapter->shared.mac_type == e1000_82542_rev2_0)
e1000_leave_82542_rst(adapter);
return 0;
}
/**
* e1000_set_multi - Multicast and Promiscuous mode set
* @netdev: network interface device structure
*
* The set_multi entry point is called whenever the multicast address
* list or the network interface flags are updated. This routine is
* resposible for configuring the hardware for proper multicast,
* promiscuous mode, and all-multi behavior.
**/
static void
e1000_set_multi(struct net_device *netdev)
{
struct e1000_adapter *adapter = netdev->priv;
struct e1000_shared_adapter *shared = &adapter->shared;
struct dev_mc_list *mc_ptr;
uint32_t rctl;
uint32_t hash_value;
int i;
/* Check for Promiscuous and All Multicast modes */
rctl = E1000_READ_REG(shared, RCTL);
if(netdev->flags & IFF_PROMISC) {
rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
} else if(netdev->flags & IFF_ALLMULTI) {
rctl |= E1000_RCTL_MPE;
rctl &= ~E1000_RCTL_UPE;
} else {
rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE);
}
E1000_WRITE_REG(shared, RCTL, rctl);
/* 82542 2.0 needs to be in reset to write receive address registers */
if(shared->mac_type == e1000_82542_rev2_0)
e1000_enter_82542_rst(adapter);
/* load the first 15 multicast address into the exact filters 1-15
* RAR 0 is used for the station MAC adddress
* if there are not 15 addresses, go ahead and clear the filters
*/
mc_ptr = netdev->mc_list;
for(i = 1; i < E1000_RAR_ENTRIES; i++) {
if(mc_ptr) {
e1000_rar_set(shared, mc_ptr->dmi_addr, i);
mc_ptr = mc_ptr->next;
} else {
E1000_WRITE_REG_ARRAY(shared, RA, i << 1, 0);
E1000_WRITE_REG_ARRAY(shared, RA, (i << 1) + 1, 0);
}
}
/* clear the old settings from the multicast hash table */
for(i = 0; i < E1000_NUM_MTA_REGISTERS; i++)
E1000_WRITE_REG_ARRAY(shared, MTA, i, 0);
/* load any remaining addresses into the hash table */
for(; mc_ptr; mc_ptr = mc_ptr->next) {
hash_value = e1000_hash_mc_addr(shared, mc_ptr->dmi_addr);
e1000_mta_set(shared, hash_value);
}
if(shared->mac_type == e1000_82542_rev2_0)
e1000_leave_82542_rst(adapter);
return;
}
/* need to wait a few seconds after link up to get diagnostic information from the phy */
static void
e1000_update_phy_info(unsigned long data)
{
struct e1000_adapter *adapter = (struct e1000_adapter *) data;
e1000_phy_get_info(&adapter->shared, &adapter->phy_info);
return;
}
/**
* e1000_watchdog - Timer Call-back
* @data: pointer to netdev cast into an unsigned long
**/
static void
e1000_watchdog(unsigned long data)
{
struct e1000_adapter *adapter = (struct e1000_adapter *) data;
struct net_device *netdev = adapter->netdev;
e1000_check_for_link(&adapter->shared);
if(E1000_READ_REG(&adapter->shared, STATUS) & E1000_STATUS_LU) {
if(!netif_carrier_ok(netdev)) {
e1000_get_speed_and_duplex(&adapter->shared,
&adapter->link_speed,
&adapter->link_duplex);
printk(KERN_INFO
"e1000: %s NIC Link is Up %d Mbps %s\n",
netdev->name, adapter->link_speed,
adapter->link_duplex == FULL_DUPLEX ?
"Full Duplex" : "Half Duplex");
netif_carrier_on(netdev);
adapter->trans_finish = jiffies;
netif_wake_queue(netdev);
mod_timer(&adapter->phy_info_timer, jiffies + 2 * HZ);
}
} else {
if(netif_carrier_ok(netdev)) {
adapter->link_speed = 0;
adapter->link_duplex = 0;
printk(KERN_INFO
"e1000: %s NIC Link is Down\n",
netdev->name);
netif_carrier_off(netdev);
netif_stop_queue(netdev);
}
}
e1000_update_stats(adapter);
/* Reset the timer */
mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
return;
}
/**
* e1000_xmit_frame - Transmit entry point
* @skb: buffer with frame data to transmit
* @netdev: network interface device structure
*
* Returns 0 on success, 1 on error
*
* e1000_xmit_frame is called by the stack to initiate a transmit.
* The out of resource condition is checked after each successful Tx
* so that the stack can be notified, preventing the driver from
* ever needing to drop a frame. The atomic operations on
* tx_ring.unused are used to syncronize with the transmit
* interrupt processing code without the need for a spinlock.
**/
#define TXD_USE_COUNT(x) (((x) >> 12) + ((x) & 0x0fff ? 1 : 0))
#define SETUP_TXD_PAGE(L, P, O) do { \
tx_ring->buffer_info[i].length = (L); \
tx_ring->buffer_info[i].dma = \
pci_map_page(pdev, (P), (O), (L), PCI_DMA_TODEVICE); \
tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma); \
tx_desc->lower.data = cpu_to_le32(txd_lower | (L)); \
tx_desc->upper.data = cpu_to_le32(txd_upper); \
} while (0)
#define SETUP_TXD_PTR(L, P) \
SETUP_TXD_PAGE((L), virt_to_page(P), (unsigned long)(P) & ~PAGE_MASK)
#define QUEUE_TXD() do { i = (i + 1) % tx_ring->count; \
atomic_dec(&tx_ring->unused); } while (0)
static int
e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
{
struct e1000_adapter *adapter = netdev->priv;
struct e1000_desc_ring *tx_ring = &adapter->tx_ring;
struct pci_dev *pdev = adapter->pdev;
struct e1000_tx_desc *tx_desc;
int f, len, offset, txd_needed;
skb_frag_t *frag;
int i = tx_ring->next_to_use;
uint32_t txd_upper = 0;
uint32_t txd_lower = adapter->txd_cmd;
/* If controller appears hung, force transmit timeout */
if (time_after(netdev->trans_start, adapter->trans_finish + HZ) &&
/* If transmitting XOFFs, we're not really hung */
!(E1000_READ_REG(&adapter->shared, STATUS) & E1000_STATUS_TXOFF)) {
adapter->trans_finish = jiffies;
netif_stop_queue(netdev);
return 1;
}
txd_needed = TXD_USE_COUNT(skb->len - skb->data_len);
for(f = 0; f < skb_shinfo(skb)->nr_frags; f++) {
frag = &skb_shinfo(skb)->frags[f];
txd_needed += TXD_USE_COUNT(frag->size);
}
if(skb->ip_summed == CHECKSUM_HW)
txd_needed += 1;
/* make sure there are enough Tx descriptors available in the ring */
if(atomic_read(&tx_ring->unused) <= (txd_needed + 1)) {
adapter->net_stats.tx_dropped++;
netif_stop_queue(netdev);
return 1;
}
if(skb->ip_summed == CHECKSUM_HW) {
struct e1000_context_desc *context_desc;
uint8_t css = skb->h.raw - skb->data;
uint8_t cso = (skb->h.raw + skb->csum) - skb->data;
context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
context_desc->upper_setup.tcp_fields.tucss = css;
context_desc->upper_setup.tcp_fields.tucso = cso;
context_desc->upper_setup.tcp_fields.tucse = 0;
context_desc->tcp_seg_setup.data = 0;
context_desc->cmd_and_length =
cpu_to_le32(txd_lower | E1000_TXD_CMD_DEXT);
QUEUE_TXD();
txd_upper |= E1000_TXD_POPTS_TXSM << 8;
txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D;
}
tx_desc = E1000_TX_DESC(*tx_ring, i);
len = skb->len - skb->data_len;
offset = 0;
while(len > 4096) {
SETUP_TXD_PTR(4096, skb->data + offset);
QUEUE_TXD();
tx_desc = E1000_TX_DESC(*tx_ring, i);
len -= 4096;
offset += 4096;
}
SETUP_TXD_PTR(len, skb->data + offset);
for(f = 0; f < skb_shinfo(skb)->nr_frags; f++) {
frag = &skb_shinfo(skb)->frags[f];
QUEUE_TXD();
tx_desc = E1000_TX_DESC(*tx_ring, i);
len = frag->size;
offset = 0;
while(len > 4096) {
SETUP_TXD_PAGE(4096, frag->page,
frag->page_offset + offset);
QUEUE_TXD();
tx_desc = E1000_TX_DESC(*tx_ring, i);
len -= 4096;
offset += 4096;
}
SETUP_TXD_PAGE(len, frag->page, frag->page_offset + offset);
}
/* EOP and SKB pointer go with the last fragment */
tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP);
tx_ring->buffer_info[i].skb = skb;
QUEUE_TXD();
tx_ring->next_to_use = i;
/* Move the HW Tx Tail Pointer */
E1000_WRITE_REG(&adapter->shared, TDT, i);
netdev->trans_start = jiffies;
return 0;
}
#undef TXD_USE_COUNT
#undef SETUP_TXD
#undef QUEUE_TXD
/**
* e1000_tx_timeout - Respond to a Tx Hang
* @netdev: network interface device structure
**/
static void
e1000_tx_timeout(struct net_device *netdev)
{
struct e1000_adapter *adapter = netdev->priv;
e1000_down(adapter);
e1000_up(adapter);
}
/**
* e1000_get_stats - Get System Network Statistics
* @netdev: network interface device structure
*
* Returns the address of the device statistics structure.
* The statistics are actually updated from the timer callback.
**/
static struct net_device_stats *
e1000_get_stats(struct net_device *netdev)
{
struct e1000_adapter *adapter = netdev->priv;
return &adapter->net_stats;
}
/**
* e1000_change_mtu - Change the Maximum Transfer Unit
* @netdev: network interface device structure
* @new_mtu: new value for maximum frame size
*
* Returns 0 on success, negative on failure
**/
static int
e1000_change_mtu(struct net_device *netdev, int new_mtu)
{
struct e1000_adapter *adapter = netdev->priv;
int old_mtu = adapter->rx_buffer_len;
int max_frame = new_mtu + ENET_HEADER_SIZE + CRC_LENGTH;
if((max_frame < MINIMUM_ETHERNET_PACKET_SIZE + CRC_LENGTH) ||
(max_frame > MAX_JUMBO_FRAME_SIZE + CRC_LENGTH)) {
E1000_ERR("Invalid MTU setting\n");
return -EINVAL;
}
if(max_frame <= MAXIMUM_ETHERNET_PACKET_SIZE + CRC_LENGTH) {
adapter->rx_buffer_len = E1000_RXBUFFER_2048;
} else if(adapter->shared.mac_type < e1000_82543) {
E1000_ERR("Jumbo Frames not supported on 82542\n");
return -EINVAL;
} else if(max_frame <= E1000_RXBUFFER_2048) {
adapter->rx_buffer_len = E1000_RXBUFFER_2048;
} else if(max_frame <= E1000_RXBUFFER_4096) {
adapter->rx_buffer_len = E1000_RXBUFFER_4096;
} else if(max_frame <= E1000_RXBUFFER_8192) {
adapter->rx_buffer_len = E1000_RXBUFFER_8192;
} else {
adapter->rx_buffer_len = E1000_RXBUFFER_16384;
}
if(old_mtu != adapter->rx_buffer_len && netif_running(netdev)) {
e1000_down(adapter);
e1000_clean_rx_ring(adapter);
e1000_clean_tx_ring(adapter);
e1000_up(adapter);
}
netdev->mtu = new_mtu;
adapter->shared.max_frame_size = max_frame;
return 0;
}
/**
* e1000_update_stats - Update the board statistics counters
* @adapter: board private structure
**/
static void
e1000_update_stats(struct e1000_adapter *adapter)
{
struct e1000_shared_adapter *shared = &adapter->shared;
unsigned long flags;
#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF
spin_lock_irqsave(&adapter->stats_lock, flags);
/* these counters are modified from e1000_adjust_tbi_stats,
* called from the interrupt context, so they must only
* be written while holding adapter->stats_lock
*/
adapter->stats.crcerrs += E1000_READ_REG(shared, CRCERRS);
adapter->stats.gprc += E1000_READ_REG(shared, GPRC);
adapter->stats.gorcl += E1000_READ_REG(shared, GORCL);
adapter->stats.gorch += E1000_READ_REG(shared, GORCH);
adapter->stats.bprc += E1000_READ_REG(shared, BPRC);
adapter->stats.mprc += E1000_READ_REG(shared, MPRC);
adapter->stats.roc += E1000_READ_REG(shared, ROC);
adapter->stats.prc64 += E1000_READ_REG(shared, PRC64);
adapter->stats.prc127 += E1000_READ_REG(shared, PRC127);
adapter->stats.prc255 += E1000_READ_REG(shared, PRC255);
adapter->stats.prc511 += E1000_READ_REG(shared, PRC511);
adapter->stats.prc1023 += E1000_READ_REG(shared, PRC1023);
adapter->stats.prc1522 += E1000_READ_REG(shared, PRC1522);
spin_unlock_irqrestore(&adapter->stats_lock, flags);
/* the rest of the counters are only modified here */
adapter->stats.symerrs += E1000_READ_REG(shared, SYMERRS);
adapter->stats.mpc += E1000_READ_REG(shared, MPC);
adapter->stats.scc += E1000_READ_REG(shared, SCC);
adapter->stats.ecol += E1000_READ_REG(shared, ECOL);
adapter->stats.mcc += E1000_READ_REG(shared, MCC);
adapter->stats.latecol += E1000_READ_REG(shared, LATECOL);
adapter->stats.colc += E1000_READ_REG(shared, COLC);
adapter->stats.dc += E1000_READ_REG(shared, DC);
adapter->stats.sec += E1000_READ_REG(shared, SEC);
adapter->stats.rlec += E1000_READ_REG(shared, RLEC);
adapter->stats.xonrxc += E1000_READ_REG(shared, XONRXC);
adapter->stats.xontxc += E1000_READ_REG(shared, XONTXC);
adapter->stats.xoffrxc += E1000_READ_REG(shared, XOFFRXC);
adapter->stats.xofftxc += E1000_READ_REG(shared, XOFFTXC);
adapter->stats.fcruc += E1000_READ_REG(shared, FCRUC);
adapter->stats.gptc += E1000_READ_REG(shared, GPTC);
adapter->stats.gotcl += E1000_READ_REG(shared, GOTCL);
adapter->stats.gotch += E1000_READ_REG(shared, GOTCH);
adapter->stats.rnbc += E1000_READ_REG(shared, RNBC);
adapter->stats.ruc += E1000_READ_REG(shared, RUC);
adapter->stats.rfc += E1000_READ_REG(shared, RFC);
adapter->stats.rjc += E1000_READ_REG(shared, RJC);
adapter->stats.torl += E1000_READ_REG(shared, TORL);
adapter->stats.torh += E1000_READ_REG(shared, TORH);
adapter->stats.totl += E1000_READ_REG(shared, TOTL);
adapter->stats.toth += E1000_READ_REG(shared, TOTH);
adapter->stats.tpr += E1000_READ_REG(shared, TPR);
adapter->stats.tpt += E1000_READ_REG(shared, TPT);
adapter->stats.ptc64 += E1000_READ_REG(shared, PTC64);
adapter->stats.ptc127 += E1000_READ_REG(shared, PTC127);
adapter->stats.ptc255 += E1000_READ_REG(shared, PTC255);
adapter->stats.ptc511 += E1000_READ_REG(shared, PTC511);
adapter->stats.ptc1023 += E1000_READ_REG(shared, PTC1023);
adapter->stats.ptc1522 += E1000_READ_REG(shared, PTC1522);
adapter->stats.mptc += E1000_READ_REG(shared, MPTC);
adapter->stats.bptc += E1000_READ_REG(shared, BPTC);
if(adapter->shared.mac_type >= e1000_82543) {
adapter->stats.algnerrc += E1000_READ_REG(shared, ALGNERRC);
adapter->stats.rxerrc += E1000_READ_REG(shared, RXERRC);
adapter->stats.tncrs += E1000_READ_REG(shared, TNCRS);
adapter->stats.cexterr += E1000_READ_REG(shared, CEXTERR);
adapter->stats.tsctc += E1000_READ_REG(shared, TSCTC);
adapter->stats.tsctfc += E1000_READ_REG(shared, TSCTFC);
}
/* Fill out the OS statistics structure */
adapter->net_stats.rx_packets = adapter->stats.gprc;
adapter->net_stats.tx_packets = adapter->stats.gptc;
adapter->net_stats.rx_bytes = adapter->stats.gorcl;
adapter->net_stats.tx_bytes = adapter->stats.gotcl;
adapter->net_stats.multicast = adapter->stats.mprc;
adapter->net_stats.collisions = adapter->stats.colc;
/* Rx Errors */
adapter->net_stats.rx_errors = adapter->stats.rxerrc +
adapter->stats.crcerrs + adapter->stats.algnerrc +
adapter->stats.rlec + adapter->stats.rnbc +
adapter->stats.mpc + adapter->stats.cexterr;
adapter->net_stats.rx_dropped = adapter->stats.rnbc;
adapter->net_stats.rx_length_errors = adapter->stats.rlec;
adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs;
adapter->net_stats.rx_frame_errors = adapter->stats.algnerrc;
adapter->net_stats.rx_fifo_errors = adapter->stats.mpc;
adapter->net_stats.rx_missed_errors = adapter->stats.mpc;
/* Tx Errors */
adapter->net_stats.tx_errors = adapter->stats.ecol +
adapter->stats.latecol;
adapter->net_stats.tx_aborted_errors = adapter->stats.ecol;
adapter->net_stats.tx_window_errors = adapter->stats.latecol;
/* Tx Dropped needs to be maintained elsewhere */
if(adapter->shared.media_type == e1000_media_type_copper) {
adapter->phy_stats.idle_errors +=
(e1000_read_phy_reg(shared, PHY_1000T_STATUS)
& PHY_IDLE_ERROR_COUNT_MASK);
adapter->phy_stats.receive_errors +=
e1000_read_phy_reg(shared, M88E1000_RX_ERR_CNTR);
}
return;
}
/**
* e1000_irq_disable - Mask off interrupt generation on the NIC
* @adapter: board private structure
**/
static inline void
e1000_irq_disable(struct e1000_adapter *adapter)
{
atomic_inc(&adapter->irq_sem);
E1000_WRITE_REG(&adapter->shared, IMC, ~0);
synchronize_irq();
return;
}
/**
* e1000_irq_enable - Enable default interrupt generation settings
* @adapter: board private structure
**/
static inline void
e1000_irq_enable(struct e1000_adapter *adapter)
{
if(atomic_dec_and_test(&adapter->irq_sem))
E1000_WRITE_REG(&adapter->shared, IMS, IMS_ENABLE_MASK);
return;
}
/**
* e1000_intr - Interrupt Handler
* @irq: interrupt number
* @data: pointer to a network interface device structure
* @pt_regs: CPU registers structure
**/
static void
e1000_intr(int irq, void *data, struct pt_regs *regs)
{
struct net_device *netdev = data;
struct e1000_adapter *adapter = netdev->priv;
uint32_t icr;
int i = E1000_MAX_INTR;
while(i && (icr = E1000_READ_REG(&adapter->shared, ICR))) {
if(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
/* run the watchdog ASAP */
adapter->shared.get_link_status = 1;
mod_timer(&adapter->watchdog_timer, jiffies);
}
e1000_clean_rx_irq(adapter);
e1000_clean_tx_irq(adapter);
i--;
}
return;
}
/**
* e1000_clean_tx_irq - Reclaim resources after transmit completes
* @adapter: board private structure
**/
static void
e1000_clean_tx_irq(struct e1000_adapter *adapter)
{
struct e1000_desc_ring *tx_ring = &adapter->tx_ring;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
struct e1000_tx_desc *tx_desc;
int i;
i = tx_ring->next_to_clean;
tx_desc = E1000_TX_DESC(*tx_ring, i);
while(tx_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
if(tx_ring->buffer_info[i].dma) {
pci_unmap_page(pdev,
tx_ring->buffer_info[i].dma,
tx_ring->buffer_info[i].length,
PCI_DMA_TODEVICE);
tx_ring->buffer_info[i].dma = 0;
}
if(tx_ring->buffer_info[i].skb) {
dev_kfree_skb_irq(tx_ring->buffer_info[i].skb);
tx_ring->buffer_info[i].skb = NULL;
}
memset(tx_desc, 0, sizeof(struct e1000_tx_desc));
mb();
atomic_inc(&tx_ring->unused);
i = (i + 1) % tx_ring->count;
tx_desc = E1000_TX_DESC(*tx_ring, i);
adapter->trans_finish = jiffies;
}
tx_ring->next_to_clean = i;
if(netif_queue_stopped(netdev) && netif_carrier_ok(netdev) &&
(atomic_read(&tx_ring->unused) > E1000_TX_QUEUE_WAKE)) {
netif_wake_queue(netdev);
}
return;
}
/**
* e1000_clean_rx_irq - Send received data up the network stack,
* @adapter: board private structure
**/
static void
e1000_clean_rx_irq(struct e1000_adapter *adapter)
{
struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
struct e1000_rx_desc *rx_desc;
struct sk_buff *skb;
unsigned long flags;
uint32_t length;
uint8_t last_byte;
int i;
i = rx_ring->next_to_clean;
rx_desc = E1000_RX_DESC(*rx_ring, i);
while(rx_desc->status & E1000_RXD_STAT_DD) {
pci_unmap_single(pdev,
rx_ring->buffer_info[i].dma,
rx_ring->buffer_info[i].length,
PCI_DMA_FROMDEVICE);
skb = rx_ring->buffer_info[i].skb;
length = le16_to_cpu(rx_desc->length);
if(!(rx_desc->status & E1000_RXD_STAT_EOP)) {
/* All receives must fit into a single buffer */
E1000_DBG("Receive packet consumed multiple buffers\n");
dev_kfree_skb_irq(skb);
memset(rx_desc, 0, 16);
mb();
rx_ring->buffer_info[i].skb = NULL;
rx_ring->unused_count++;
i = (i + 1) % rx_ring->count;
rx_desc = E1000_RX_DESC(*rx_ring, i);
continue;
}
if(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK) {
last_byte = *(skb->data + length - 1);
if(TBI_ACCEPT(&adapter->shared, rx_desc->special,
rx_desc->errors, length, last_byte)) {
spin_lock_irqsave(&adapter->stats_lock, flags);
e1000_tbi_adjust_stats(&adapter->shared,
&adapter->stats,
length, skb->data);
spin_unlock_irqrestore(&adapter->stats_lock,
flags);
length--;
} else {
dev_kfree_skb_irq(skb);
memset(rx_desc, 0, 16);
mb();
rx_ring->buffer_info[i].skb = NULL;
rx_ring->unused_count++;
i = (i + 1) % rx_ring->count;
rx_desc = E1000_RX_DESC(*rx_ring, i);
continue;
}
}
/* Good Receive */
skb_put(skb, length - CRC_LENGTH);
/* Receive Checksum Offload */
e1000_rx_checksum(adapter, rx_desc, skb);
skb->protocol = eth_type_trans(skb, netdev);
netif_rx(skb);
memset(rx_desc, 0, sizeof(struct e1000_rx_desc));
mb();
rx_ring->buffer_info[i].skb = NULL;
rx_ring->unused_count++;
i = (i + 1) % rx_ring->count;
rx_desc = E1000_RX_DESC(*rx_ring, i);
}
rx_ring->next_to_clean = i;
e1000_alloc_rx_buffers(adapter);
return;
}
/**
* e1000_alloc_rx_buffers - Replace used receive buffers
* @data: address of board private structure
**/
static void
e1000_alloc_rx_buffers(struct e1000_adapter *adapter)
{
struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
struct e1000_rx_desc *rx_desc;
struct sk_buff *skb;
int reserve_len;
int i;
if(!netif_running(netdev))
return;
reserve_len = 2;
i = rx_ring->next_to_use;
while(!rx_ring->buffer_info[i].skb) {
rx_desc = E1000_RX_DESC(*rx_ring, i);
skb = alloc_skb(adapter->rx_buffer_len + reserve_len,
GFP_ATOMIC);
if(!skb) {
/* Better luck next round */
break;
}
/* Make buffer alignment 2 beyond a 16 byte boundary
* this will result in a 16 byte aligned IP header after
* the 14 byte MAC header is removed
*/
skb_reserve(skb, reserve_len);
skb->dev = netdev;
rx_ring->buffer_info[i].skb = skb;
rx_ring->buffer_info[i].length = adapter->rx_buffer_len;
rx_ring->buffer_info[i].dma =
pci_map_single(pdev,
skb->data,
adapter->rx_buffer_len,
PCI_DMA_FROMDEVICE);
rx_desc->buffer_addr = cpu_to_le64(rx_ring->buffer_info[i].dma);
/* move tail */
E1000_WRITE_REG(&adapter->shared, RDT, i);
atomic_dec(&rx_ring->unused);
i = (i + 1) % rx_ring->count;
}
rx_ring->next_to_use = i;
return;
}
/**
* e1000_ioctl -
* @netdev:
* @ifreq:
* @cmd:
**/
static int
e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
{
switch (cmd) {
case SIOCETHTOOL:
return e1000_ethtool_ioctl(netdev, ifr);
default:
return -EOPNOTSUPP;
}
}
/**
* e1000_rx_checksum - Receive Checksum Offload for 82543
* @adapter: board private structure
* @rx_desc: receive descriptor
* @sk_buff: socket buffer with received data
**/
static inline void
e1000_rx_checksum(struct e1000_adapter *adapter,
struct e1000_rx_desc *rx_desc,
struct sk_buff *skb)
{
/* 82543 or newer only */
if((adapter->shared.mac_type < e1000_82543) ||
/* Ignore Checksum bit is set */
(rx_desc->status & E1000_RXD_STAT_IXSM) ||
/* TCP Checksum has not been calculated */
(!(rx_desc->status & E1000_RXD_STAT_TCPCS))) {
skb->ip_summed = CHECKSUM_NONE;
return;
}
/* At this point we know the hardware did the TCP checksum */
/* now look at the TCP checksum error bit */
if(rx_desc->errors & E1000_RXD_ERR_TCPE) {
/* let the stack verify checksum errors */
skb->ip_summed = CHECKSUM_NONE;
adapter->hw_csum_err++;
} else {
/* TCP checksum is good */
skb->ip_summed = CHECKSUM_UNNECESSARY;
adapter->hw_csum_good++;
}
return;
}
/**
* e1000_enable_WOL - Wake On Lan Support (Magic Pkt)
* @adapter: Adapter structure
**/
void
e1000_enable_WOL(struct e1000_adapter *adapter)
{
uint32_t wuc;
if(adapter->shared.mac_type < e1000_82544)
return;
if(adapter->wol) {
wuc = E1000_WUC_APME | E1000_WUC_PME_EN |
E1000_WUC_PME_STATUS | E1000_WUC_APMPME;
E1000_WRITE_REG(&adapter->shared, WUC, wuc);
E1000_WRITE_REG(&adapter->shared, WUFC, adapter->wol);
}
return;
}
void
e1000_write_pci_cfg(struct e1000_shared_adapter *shared,
uint32_t reg, uint16_t *value)
{
struct e1000_adapter *adapter = shared->back;
pci_write_config_word(adapter->pdev, reg, *value);
return;
}
/* e1000_main.c */
drivers/net/e1000/e1000_osdep.h 0 → 100644
View file @ 87a54bc3
/*******************************************************************************
This software program is available to you under a choice of one of two
licenses. You may choose to be licensed under either the GNU General Public
License (GPL) Version 2, June 1991, available at
http://www.fsf.org/copyleft/gpl.html, or the Intel BSD + Patent License, the
text of which follows:
Recipient has requested a license and Intel Corporation ("Intel") is willing
to grant a license for the software entitled Linux Base Driver for the
Intel(R) PRO/1000 Family of Adapters (e1000) (the "Software") being provided
by Intel Corporation. The following definitions apply to this license:
"Licensed Patents" means patent claims licensable by Intel Corporation which
are necessarily infringed by the use of sale of the Software alone or when
combined with the operating system referred to below.
"Recipient" means the party to whom Intel delivers this Software.
"Licensee" means Recipient and those third parties that receive a license to
any operating system available under the GNU Public License version 2.0 or
later.
Copyright (c) 1999 - 2002 Intel Corporation.
All rights reserved.
The license is provided to Recipient and Recipient's Licensees under the
following terms.
Redistribution and use in source and binary forms of the Software, with or
without modification, are permitted provided that the following conditions
are met:
Redistributions of source code of the Software may retain the above
copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form of the Software may reproduce the above
copyright notice, this list of conditions and the following disclaimer in
the documentation and/or materials provided with the distribution.
Neither the name of Intel Corporation nor the names of its contributors
shall be used to endorse or promote products derived from this Software
without specific prior written permission.
Intel hereby grants Recipient and Licensees a non-exclusive, worldwide,
royalty-free patent license under Licensed Patents to make, use, sell, offer
to sell, import and otherwise transfer the Software, if any, in source code
and object code form. This license shall include changes to the Software
that are error corrections or other minor changes to the Software that do
not add functionality or features when the Software is incorporated in any
version of an operating system that has been distributed under the GNU
General Public License 2.0 or later. This patent license shall apply to the
combination of the Software and any operating system licensed under the GNU
Public License version 2.0 or later if, at the time Intel provides the
Software to Recipient, such addition of the Software to the then publicly
available versions of such operating systems available under the GNU Public
License version 2.0 or later (whether in gold, beta or alpha form) causes
such combination to be covered by the Licensed Patents. The patent license
shall not apply to any other combinations which include the Software. NO
hardware per se is licensed hereunder.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR IT CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
ANY LOSS OF USE; DATA, OR PROFITS; OR BUSINESS INTERUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY, WHETHER IN 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.
*******************************************************************************/
/* glue for the OS independant part of e1000
* includes register access macros
*/
#ifndef _E1000_OSDEP_H_
#define _E1000_OSDEP_H_
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <linux/interrupt.h>
#define usec_delay(x) udelay(x)
#define msec_delay(x) do { if(in_interrupt()) { \
mdelay(x); \
} else { \
set_current_state(TASK_UNINTERRUPTIBLE); \
schedule_timeout((x * HZ)/1000); \
} } while(0)
#define PCI_COMMAND_REGISTER PCI_COMMAND
#define CMD_MEM_WRT_INVALIDATE PCI_COMMAND_INVALIDATE
typedef enum {
FALSE = 0,
TRUE = 1
} boolean_t;
#define ASSERT(x) if(!(x)) BUG()
#define MSGOUT(S, A, B) printk(KERN_DEBUG S "\n", A, B)
#if DBG
#define DEBUGOUT(S) printk(KERN_DEBUG S "\n")
#define DEBUGOUT1(S, A...) printk(KERN_DEBUG S "\n", A)
#else
#define DEBUGOUT(S)
#define DEBUGOUT1(S, A...)
#endif
#define DEBUGFUNC(F) DEBUGOUT(F)
#define DEBUGOUT2 DEBUGOUT1
#define DEBUGOUT3 DEBUGOUT2
#define DEBUGOUT7 DEBUGOUT3
#define E1000_WRITE_REG(a, reg, value) ( \
((a)->mac_type >= e1000_82543) ? \
(writel((value), ((a)->hw_addr + E1000_##reg))) : \
(writel((value), ((a)->hw_addr + E1000_82542_##reg))))
#define E1000_READ_REG(a, reg) ( \
((a)->mac_type >= e1000_82543) ? \
readl((a)->hw_addr + E1000_##reg) : \
readl((a)->hw_addr + E1000_82542_##reg))
#define E1000_WRITE_REG_ARRAY(a, reg, offset, value) ( \
((a)->mac_type >= e1000_82543) ? \
writel((value), ((a)->hw_addr + E1000_##reg + ((offset) << 2))) : \
writel((value), ((a)->hw_addr + E1000_82542_##reg + ((offset) << 2))))
#define E1000_READ_REG_ARRAY(a, reg, offset) ( \
((a)->mac_type >= e1000_82543) ? \
readl((a)->hw_addr + E1000_##reg + ((offset) << 2)) : \
readl((a)->hw_addr + E1000_82542_##reg + ((offset) << 2)))
#endif /* _E1000_OSDEP_H_ */
drivers/net/e1000/e1000_param.c 0 → 100644
View file @ 87a54bc3
/*******************************************************************************
This software program is available to you under a choice of one of two
licenses. You may choose to be licensed under either the GNU General Public
License (GPL) Version 2, June 1991, available at
http://www.fsf.org/copyleft/gpl.html, or the Intel BSD + Patent License, the
text of which follows:
Recipient has requested a license and Intel Corporation ("Intel") is willing
to grant a license for the software entitled Linux Base Driver for the
Intel(R) PRO/1000 Family of Adapters (e1000) (the "Software") being provided
by Intel Corporation. The following definitions apply to this license:
"Licensed Patents" means patent claims licensable by Intel Corporation which
are necessarily infringed by the use of sale of the Software alone or when
combined with the operating system referred to below.
"Recipient" means the party to whom Intel delivers this Software.
"Licensee" means Recipient and those third parties that receive a license to
any operating system available under the GNU Public License version 2.0 or
later.
Copyright (c) 1999 - 2002 Intel Corporation.
All rights reserved.
The license is provided to Recipient and Recipient's Licensees under the
following terms.
Redistribution and use in source and binary forms of the Software, with or
without modification, are permitted provided that the following conditions
are met:
Redistributions of source code of the Software may retain the above
copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form of the Software may reproduce the above
copyright notice, this list of conditions and the following disclaimer in
the documentation and/or materials provided with the distribution.
Neither the name of Intel Corporation nor the names of its contributors
shall be used to endorse or promote products derived from this Software
without specific prior written permission.
Intel hereby grants Recipient and Licensees a non-exclusive, worldwide,
royalty-free patent license under Licensed Patents to make, use, sell, offer
to sell, import and otherwise transfer the Software, if any, in source code
and object code form. This license shall include changes to the Software
that are error corrections or other minor changes to the Software that do
not add functionality or features when the Software is incorporated in any
version of an operating system that has been distributed under the GNU
General Public License 2.0 or later. This patent license shall apply to the
combination of the Software and any operating system licensed under the GNU
Public License version 2.0 or later if, at the time Intel provides the
Software to Recipient, such addition of the Software to the then publicly
available versions of such operating systems available under the GNU Public
License version 2.0 or later (whether in gold, beta or alpha form) causes
such combination to be covered by the Licensed Patents. The patent license
shall not apply to any other combinations which include the Software. NO
hardware per se is licensed hereunder.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR IT CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
ANY LOSS OF USE; DATA, OR PROFITS; OR BUSINESS INTERUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY, WHETHER IN 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 "e1000.h"
/* This is the only thing that needs to be changed to adjust the
* maximum number of ports that the driver can manage.
*/
#define E1000_MAX_NIC 32
#define OPTION_UNSET -1
#define OPTION_DISABLED 0
#define OPTION_ENABLED 1
/* Module Parameters are always initialized to -1, so that the driver
* can tell the difference between no user specified value or the
* user asking for the default value.
* The true default values are loaded in when e1000_check_options is called.
*
* This is a GCC extension to ANSI C.
* See the item "Labeled Elements in Initializers" in the section
* "Extensions to the C Language Family" of the GCC documentation.
*/
#define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET }
/* All parameters are treated the same, as an integer array of values.
* This macro just reduces the need to repeat the same declaration code
* over and over (plus this helps to avoid typo bugs).
*/
#define E1000_PARAM(X, S) \
static const int __devinitdata X[E1000_MAX_NIC + 1] = E1000_PARAM_INIT; \
MODULE_PARM(X, "1-" __MODULE_STRING(E1000_MAX_NIC) "i"); \
MODULE_PARM_DESC(X, S);
/* Transmit Descriptor Count
*
* Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers
* Valid Range: 80-4096 for 82544
*
* Default Value: 256
*/
E1000_PARAM(TxDescriptors, "Number of transmit descriptors");
/* Receive Descriptor Count
*
* Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers
* Valid Range: 80-4096 for 82544
*
* Default Value: 80
*/
E1000_PARAM(RxDescriptors, "Number of receive descriptors");
/* User Specified Speed Override
*
* Valid Range: 0, 10, 100, 1000
* - 0 - auto-negotiate at all supported speeds
* - 10 - only link at 10 Mbps
* - 100 - only link at 100 Mbps
* - 1000 - only link at 1000 Mbps
*
* Default Value: 0
*/
E1000_PARAM(Speed, "Speed setting");
/* User Specified Duplex Override
*
* Valid Range: 0-2
* - 0 - auto-negotiate for duplex
* - 1 - only link at half duplex
* - 2 - only link at full duplex
*
* Default Value: 0
*/
E1000_PARAM(Duplex, "Duplex setting");
/* Auto-negotiation Advertisement Override
*
* Valid Range: 0x00-0x0F, 0x20-0x2F
*
* The AutoNeg value is a bit mask describing which speed and duplex
* combinations should be advertised during auto-negotiation.
* The supported speed and duplex modes are listed below
*
* Bit 7 6 5 4 3 2 1 0
* Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10
* Duplex Full Full Half Full Half
*
* Default Value: 0x2F
*/
E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting");
/* User Specified Flow Control Override
*
* Valid Range: 0-3
* - 0 - No Flow Control
* - 1 - Rx only, respond to PAUSE frames but do not generate them
* - 2 - Tx only, generate PAUSE frames but ignore them on receive
* - 3 - Full Flow Control Support
*
* Default Value: Read flow control settings from the EEPROM
*/
E1000_PARAM(FlowControl, "Flow Control setting");
/* XsumRX - Receive Checksum Offload Enable/Disable
*
* Valid Range: 0, 1
* - 0 - disables all checksum offload
* - 1 - enables receive IP/TCP/UDP checksum offload
* on 82543 based NICs
*
* Default Value: 1
*/
E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload");
/* Transmit Interrupt Delay in units of 1.024 microseconds
*
* Valid Range: 0-65535
*
* Default Value: 64
*/
E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay");
/* Receive Interrupt Delay in units of 1.024 microseconds
*
* Valid Range: 0-65535
*
* Default Value: 64
*/
E1000_PARAM(RxIntDelay, "Receive Interrupt Delay");
/* MDI-X Support Enable/Disable - Applies only to Copper PHY
*
* Valid Range: 0, 3
* - 0 - Auto in all modes
* - 1 - MDI
* - 2 - MDI-X
* - 3 - Auto in 1000 Base-T mode (MDI in 10 Base-T and 100 Base-T)
*
* Default Value: 0 (Auto)
*/
E1000_PARAM(MdiX, "Set MDI/MDI-X Mode");
/* Automatic Correction of Reversed Cable Polarity Enable/Disable
* This setting applies only to Copper PHY
*
* Valid Range: 0, 1
* - 0 - Disabled
* - 1 - Enabled
*
* Default Value: 1 (Enabled)
*/
E1000_PARAM(DisablePolarityCorrection,
"Disable or enable Automatic Correction for Reversed Cable Polarity");
#define AUTONEG_ADV_DEFAULT 0x2F
#define AUTONEG_ADV_MASK 0x2F
#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL
#define DEFAULT_TXD 256
#define MAX_TXD 256
#define MIN_TXD 80
#define MAX_82544_TXD 4096
#define DEFAULT_RXD 80
#define MAX_RXD 256
#define MIN_RXD 80
#define MAX_82544_RXD 4096
#define DEFAULT_TIDV 64
#define MAX_TIDV 0xFFFF
#define MIN_TIDV 0
#define DEFAULT_RIDV 64
#define MAX_RIDV 0xFFFF
#define MIN_RIDV 0
#define DEFAULT_MDIX 0
#define MAX_MDIX 3
#define MIN_MDIX 0
struct e1000_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 e1000_opt_list { int i; char *str; } *p;
} l;
} arg;
};
static int __devinit
e1000_validate_option(int *value, struct e1000_option *opt)
{
if(*value == OPTION_UNSET) {
*value = opt->def;
return 0;
}
switch (opt->type) {
case enable_option:
switch (*value) {
case OPTION_ENABLED:
printk(KERN_INFO "%s Enabled\n", opt->name);
return 0;
case OPTION_DISABLED:
printk(KERN_INFO "%s Disabled\n", opt->name);
return 0;
}
break;
case range_option:
if(*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
printk(KERN_INFO "%s set to %i\n", opt->name, *value);
return 0;
}
break;
case list_option: {
int i;
struct e1000_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')
printk(KERN_INFO "%s\n", ent->str);
return 0;
}
}
}
break;
default:
BUG();
}
printk(KERN_INFO "Invalid %s specified (%i) %s\n",
opt->name, *value, opt->err);
*value = opt->def;
return -1;
}
#define LIST_LEN(l) (sizeof(l) / sizeof(l[0]))
static void e1000_check_fiber_options(struct e1000_adapter *adapter);
static void e1000_check_copper_options(struct e1000_adapter *adapter);
/**
* e1000_check_options - Range Checking for Command Line Parameters
* @adapter: board private structure
*
* This routine checks all command line paramters 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.
**/
void __devinit
e1000_check_options(struct e1000_adapter *adapter)
{
int bd = adapter->bd_number;
if(bd >= E1000_MAX_NIC) {
printk(KERN_NOTICE
"Warning: no configuration for board #%i\n", bd);
printk(KERN_NOTICE "Using defaults for all values\n");
bd = E1000_MAX_NIC;
}
{ /* Transmit Descriptor Count */
struct e1000_option opt = {
type: range_option,
name: "Transmit Descriptors",
err: "using default of " __MODULE_STRING(DEFAULT_TXD),
def: DEFAULT_TXD,
arg: { r: { min: MIN_TXD }}
};
struct e1000_desc_ring *tx_ring = &adapter->tx_ring;
e1000_mac_type mac_type = adapter->shared.mac_type;
opt.arg.r.max = mac_type < e1000_82544 ? MAX_TXD : MAX_82544_TXD;
tx_ring->count = TxDescriptors[bd];
e1000_validate_option(&tx_ring->count, &opt);
E1000_ROUNDUP(tx_ring->count, REQ_TX_DESCRIPTOR_MULTIPLE);
}
{ /* Receive Descriptor Count */
struct e1000_option opt = {
type: range_option,
name: "Receive Descriptors",
err: "using default of " __MODULE_STRING(DEFAULT_RXD),
def: DEFAULT_RXD,
arg: { r: { min: MIN_RXD }}
};
struct e1000_desc_ring *rx_ring = &adapter->rx_ring;
e1000_mac_type mac_type = adapter->shared.mac_type;
opt.arg.r.max = mac_type < e1000_82544 ? MAX_RXD : MAX_82544_RXD;
rx_ring->count = RxDescriptors[bd];
e1000_validate_option(&rx_ring->count, &opt);
E1000_ROUNDUP(rx_ring->count, REQ_RX_DESCRIPTOR_MULTIPLE);
}
{ /* Checksum Offload Enable/Disable */
struct e1000_option opt = {
type: enable_option,
name: "Checksum Offload",
err: "defaulting to Enabled",
def: OPTION_ENABLED
};
int rx_csum = XsumRX[bd];
e1000_validate_option(&rx_csum, &opt);
adapter->rx_csum = rx_csum;
}
{ /* Flow Control */
struct e1000_opt_list fc_list[] =
{{ e1000_fc_none, "Flow Control Disabled" },
{ e1000_fc_rx_pause,"Flow Control Receive Only" },
{ e1000_fc_tx_pause,"Flow Control Transmit Only" },
{ e1000_fc_full, "Flow Control Enabled" },
{ e1000_fc_default, "Flow Control Hardware Default" }};
struct e1000_option opt = {
type: list_option,
name: "Flow Control",
err: "reading default settings from EEPROM",
def: e1000_fc_default,
arg: { l: { nr: LIST_LEN(fc_list), p: fc_list }}
};
int fc = FlowControl[bd];
e1000_validate_option(&fc, &opt);
adapter->shared.fc = adapter->shared.original_fc = fc;
}
{ /* Transmit Interrupt Delay */
struct e1000_option opt = {
type: range_option,
name: "Transmit Interrupt Delay",
err: "using default of " __MODULE_STRING(DEFAULT_TIDV),
def: DEFAULT_TIDV,
arg: { r: { min: MIN_TIDV, max: MAX_TIDV }}
};
adapter->tx_int_delay = TxIntDelay[bd];
e1000_validate_option(&adapter->tx_int_delay, &opt);
}
{ /* Receive Interrupt Delay */
struct e1000_option opt = {
type: range_option,
name: "Receive Interrupt Delay",
err: "using default of " __MODULE_STRING(DEFAULT_RIDV),
def: DEFAULT_RIDV,
arg: { r: { min: MIN_RIDV, max: MAX_RIDV }}
};
adapter->rx_int_delay = RxIntDelay[bd];
e1000_validate_option(&adapter->rx_int_delay, &opt);
}
switch(adapter->shared.media_type) {
case e1000_media_type_fiber:
e1000_check_fiber_options(adapter);
break;
case e1000_media_type_copper:
e1000_check_copper_options(adapter);
break;
default:
BUG();
}
}
/**
* e1000_check_fiber_options - Range Checking for Link Options, Fiber Version
* @adapter: board private structure
*
* Handles speed and duplex options on fiber adapters
**/
static void __devinit
e1000_check_fiber_options(struct e1000_adapter *adapter)
{
int bd = adapter->bd_number;
bd = bd > E1000_MAX_NIC ? E1000_MAX_NIC : bd;
if((Speed[bd] != OPTION_UNSET)) {
printk(KERN_INFO "Speed not valid for fiber adapters, "
"parameter ignored\n");
}
if((Duplex[bd] != OPTION_UNSET)) {
printk(KERN_INFO "Duplex not valid for fiber adapters, "
"parameter ignored\n");
}
if((AutoNeg[bd] != OPTION_UNSET)) {
printk(KERN_INFO "AutoNeg not valid for fiber adapters, "
"parameter ignored\n");
}
}
/**
* e1000_check_copper_options - Range Checking for Link Options, Copper Version
* @adapter: board private structure
*
* Handles speed and duplex options on copper adapters
**/
static void __devinit
e1000_check_copper_options(struct e1000_adapter *adapter)
{
int speed, dplx;
int bd = adapter->bd_number;
bd = bd > E1000_MAX_NIC ? E1000_MAX_NIC : bd;
{ /* Speed */
struct e1000_opt_list speed_list[] = {{ 0, "" },
{ SPEED_10, "" },
{ SPEED_100, "" },
{ SPEED_1000, "" }};
struct e1000_option opt = {
type: list_option,
name: "Speed",
err: "parameter ignored",
def: 0,
arg: { l: { nr: LIST_LEN(speed_list), p: speed_list }}
};
speed = Speed[bd];
e1000_validate_option(&speed, &opt);
}
{ /* Duplex */
struct e1000_opt_list dplx_list[] = {{ 0, "" },
{ HALF_DUPLEX, "" },
{ FULL_DUPLEX, "" }};
struct e1000_option opt = {
type: list_option,
name: "Duplex",
err: "parameter ignored",
def: 0,
arg: { l: { nr: LIST_LEN(dplx_list), p: dplx_list }}
};
dplx = Duplex[bd];
e1000_validate_option(&dplx, &opt);
}
if(AutoNeg[bd] != OPTION_UNSET && (speed != 0 || dplx != 0)) {
printk(KERN_INFO
"AutoNeg specified along with Speed or Duplex, "
"parameter ignored\n");
adapter->shared.autoneg_advertised = AUTONEG_ADV_DEFAULT;
} else { /* Autoneg */
struct e1000_opt_list an_list[] =
#define AA "Autoneg advertising "
{{ 0x01, AA "10/HD" },
{ 0x02, AA "10/FD" },
{ 0x03, AA "10/FD, 10/HD" },
{ 0x04, AA "100/HD" },
{ 0x05, AA "100/HD, 10/HD" },
{ 0x06, AA "100/HD, 10/FD" },
{ 0x07, AA "100/HD, 10/FD, 10/HD" },
{ 0x08, AA "100/FD" },
{ 0x09, AA "100/FD, 10/HD" },
{ 0x0a, AA "100/FD, 10/FD" },
{ 0x0b, AA "100/FD, 10/FD, 10/HD" },
{ 0x0c, AA "100/FD, 100/HD" },
{ 0x0d, AA "100/FD, 100/HD, 10/HD" },
{ 0x0e, AA "100/FD, 100/HD, 10/FD" },
{ 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" },
{ 0x20, AA "1000/FD" },
{ 0x21, AA "1000/FD, 10/HD" },
{ 0x22, AA "1000/FD, 10/FD" },
{ 0x23, AA "1000/FD, 10/FD, 10/HD" },
{ 0x24, AA "1000/FD, 100/HD" },
{ 0x25, AA "1000/FD, 100/HD, 10/HD" },
{ 0x26, AA "1000/FD, 100/HD, 10/FD" },
{ 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" },
{ 0x28, AA "1000/FD, 100/FD" },
{ 0x29, AA "1000/FD, 100/FD, 10/HD" },
{ 0x2a, AA "1000/FD, 100/FD, 10/FD" },
{ 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" },
{ 0x2c, AA "1000/FD, 100/FD, 100/HD" },
{ 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" },
{ 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" },
{ 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }};
struct e1000_option opt = {
type: list_option,
name: "Autoneg",
err: "parameter ignored",
def: AUTONEG_ADV_DEFAULT,
arg: { l: { nr: LIST_LEN(an_list), p: an_list }}
};
int an = AutoNeg[bd];
e1000_validate_option(&an, &opt);
adapter->shared.autoneg_advertised = an;
}
switch (speed + dplx) {
case 0:
adapter->shared.autoneg = 1;
if(Speed[bd] != OPTION_UNSET || Duplex[bd] != OPTION_UNSET)
printk(KERN_INFO
"Speed and duplex autonegotiation enabled\n");
break;
case HALF_DUPLEX:
printk(KERN_INFO "Half Duplex specified without Speed\n");
printk(KERN_INFO "Using Autonegotiation at Half Duplex only\n");
adapter->shared.autoneg = 1;
adapter->shared.autoneg_advertised = ADVERTISE_10_HALF |
ADVERTISE_100_HALF;
break;
case FULL_DUPLEX:
printk(KERN_INFO "Full Duplex specified without Speed\n");
printk(KERN_INFO "Using Autonegotiation at Full Duplex only\n");
adapter->shared.autoneg = 1;
adapter->shared.autoneg_advertised = ADVERTISE_10_FULL |
ADVERTISE_100_FULL |
ADVERTISE_1000_FULL;
break;
case SPEED_10:
printk(KERN_INFO "10 Mbps Speed specified without Duplex\n");
printk(KERN_INFO "Using Autonegotiation at 10 Mbps only\n");
adapter->shared.autoneg = 1;
adapter->shared.autoneg_advertised = ADVERTISE_10_HALF |
ADVERTISE_10_FULL;
break;
case SPEED_10 + HALF_DUPLEX:
printk(KERN_INFO "Forcing to 10 Mbps Half Duplex\n");
adapter->shared.autoneg = 0;
adapter->shared.forced_speed_duplex = e1000_10_half;
adapter->shared.autoneg_advertised = 0;
break;
case SPEED_10 + FULL_DUPLEX:
printk(KERN_INFO "Forcing to 10 Mbps Full Duplex\n");
adapter->shared.autoneg = 0;
adapter->shared.forced_speed_duplex = e1000_10_full;
adapter->shared.autoneg_advertised = 0;
break;
case SPEED_100:
printk(KERN_INFO "100 Mbps Speed specified without Duplex\n");
printk(KERN_INFO "Using Autonegotiation at 100 Mbps only\n");
adapter->shared.autoneg = 1;
adapter->shared.autoneg_advertised = ADVERTISE_100_HALF |
ADVERTISE_100_FULL;
break;
case SPEED_100 + HALF_DUPLEX:
printk(KERN_INFO "Forcing to 100 Mbps Half Duplex\n");
adapter->shared.autoneg = 0;
adapter->shared.forced_speed_duplex = e1000_100_half;
adapter->shared.autoneg_advertised = 0;
break;
case SPEED_100 + FULL_DUPLEX:
printk(KERN_INFO "Forcing to 100 Mbps Full Duplex\n");
adapter->shared.autoneg = 0;
adapter->shared.forced_speed_duplex = e1000_100_full;
adapter->shared.autoneg_advertised = 0;
break;
case SPEED_1000:
printk(KERN_INFO "1000 Mbps Speed specified without Duplex\n");
printk(KERN_INFO
"Using Autonegotiation at 1000 Mbps Full Duplex only\n");
adapter->shared.autoneg = 1;
adapter->shared.autoneg_advertised = ADVERTISE_1000_FULL;
break;
case SPEED_1000 + HALF_DUPLEX:
printk(KERN_INFO "Half Duplex is not supported at 1000 Mbps\n");
printk(KERN_INFO
"Using Autonegotiation at 1000 Mbps Full Duplex only\n");
adapter->shared.autoneg = 1;
adapter->shared.autoneg_advertised = ADVERTISE_1000_FULL;
break;
case SPEED_1000 + FULL_DUPLEX:
printk(KERN_INFO
"Using Autonegotiation at 1000 Mbps Full Duplex only\n");
adapter->shared.autoneg = 1;
adapter->shared.autoneg_advertised = ADVERTISE_1000_FULL;
break;
default:
BUG();
}
/* a few other copper only options */
{ /* MDI/MDI-X */
struct e1000_option opt = {
type: range_option,
name: "MDI/MDI-X",
err: "using default of " __MODULE_STRING(DEFAULT_MDIX),
def: DEFAULT_MDIX,
arg: { r: { min: MIN_MDIX, max: MAX_MDIX }}
};
int mdix = MdiX[bd];
e1000_validate_option(&mdix, &opt);
adapter->shared.mdix = mdix;
}
{ /* Automatic Correction for Reverse Cable Polarity */
/* option is actually to disable polarity correction,
* so setting to OPTION_ENABLED turns the hardware feature off */
struct e1000_option opt = {
type: enable_option,
name: "Disable Polarity Correction",
err: "defaulting to Disabled",
def: OPTION_DISABLED,
};
int dpc = DisablePolarityCorrection[bd];
e1000_validate_option(&dpc, &opt);
adapter->shared.disable_polarity_correction = dpc;
}
/* Speed, AutoNeg and MDI/MDI-X must all play nice */
if (!e1000_validate_mdi_setting(&(adapter->shared))) {
printk(KERN_INFO "Speed, AutoNeg and MDI-X specifications are "
"incompatible. Setting MDI-X to a compatible value.\n");
}
}
drivers/net/e1000/e1000_phy.c 0 → 100644
View file @ 87a54bc3
/*******************************************************************************
This software program is available to you under a choice of one of two
licenses. You may choose to be licensed under either the GNU General Public
License (GPL) Version 2, June 1991, available at
http://www.fsf.org/copyleft/gpl.html, or the Intel BSD + Patent License, the
text of which follows:
Recipient has requested a license and Intel Corporation ("Intel") is willing
to grant a license for the software entitled Linux Base Driver for the
Intel(R) PRO/1000 Family of Adapters (e1000) (the "Software") being provided
by Intel Corporation. The following definitions apply to this license:
"Licensed Patents" means patent claims licensable by Intel Corporation which
are necessarily infringed by the use of sale of the Software alone or when
combined with the operating system referred to below.
"Recipient" means the party to whom Intel delivers this Software.
"Licensee" means Recipient and those third parties that receive a license to
any operating system available under the GNU Public License version 2.0 or
later.
Copyright (c) 1999 - 2002 Intel Corporation.
All rights reserved.
The license is provided to Recipient and Recipient's Licensees under the
following terms.
Redistribution and use in source and binary forms of the Software, with or
without modification, are permitted provided that the following conditions
are met:
Redistributions of source code of the Software may retain the above
copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form of the Software may reproduce the above
copyright notice, this list of conditions and the following disclaimer in
the documentation and/or materials provided with the distribution.
Neither the name of Intel Corporation nor the names of its contributors
shall be used to endorse or promote products derived from this Software
without specific prior written permission.
Intel hereby grants Recipient and Licensees a non-exclusive, worldwide,
royalty-free patent license under Licensed Patents to make, use, sell, offer
to sell, import and otherwise transfer the Software, if any, in source code
and object code form. This license shall include changes to the Software
that are error corrections or other minor changes to the Software that do
not add functionality or features when the Software is incorporated in any
version of an operating system that has been distributed under the GNU
General Public License 2.0 or later. This patent license shall apply to the
combination of the Software and any operating system licensed under the GNU
Public License version 2.0 or later if, at the time Intel provides the
Software to Recipient, such addition of the Software to the then publicly
available versions of such operating systems available under the GNU Public
License version 2.0 or later (whether in gold, beta or alpha form) causes
such combination to be covered by the Licensed Patents. The patent license
shall not apply to any other combinations which include the Software. NO
hardware per se is licensed hereunder.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR IT CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
ANY LOSS OF USE; DATA, OR PROFITS; OR BUSINESS INTERUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY, WHETHER IN 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.
*******************************************************************************/
/* e1000_phy.c
* Shared functions for accessing and configuring the PHY
*/
#include "e1000_mac.h"
#include "e1000_phy.h"
/******************************************************************************
* Raises the Management Data Clock
*
* shared - Struct containing variables accessed by shared code
* ctrl_reg - Device control register's current value
******************************************************************************/
static void
e1000_raise_mdc(struct e1000_shared_adapter *shared,
uint32_t *ctrl_reg)
{
/* Raise the clock input to the Management Data Clock (by setting
* the MDC bit), and then delay 2 microseconds.
*/
E1000_WRITE_REG(shared, CTRL, (*ctrl_reg | E1000_CTRL_MDC));
usec_delay(2);
return;
}
/******************************************************************************
* Lowers the Management Data Clock
*
* shared - Struct containing variables accessed by shared code
* ctrl_reg - Device control register's current value
******************************************************************************/
static void
e1000_lower_mdc(struct e1000_shared_adapter *shared,
uint32_t *ctrl_reg)
{
/* Lower the clock input to the Management Data Clock (by clearing
* the MDC bit), and then delay 2 microseconds.
*/
E1000_WRITE_REG(shared, CTRL, (*ctrl_reg & ~E1000_CTRL_MDC));
usec_delay(2);
return;
}
/******************************************************************************
* Shifts data bits out to the PHY
*
* shared - Struct containing variables accessed by shared code
* data - Data to send out to the PHY
* count - Number of bits to shift out
*
* Bits are shifted out in MSB to LSB order.
******************************************************************************/
static void
e1000_phy_shift_out(struct e1000_shared_adapter *shared,
uint32_t data,
uint16_t count)
{
uint32_t ctrl_reg;
uint32_t mask;
ASSERT(count <= 32);
/* We need to shift "count" number of bits out to the PHY. So, the
* value in the "Data" parameter will be shifted out to the PHY
* one bit at a time. In order to do this, "Data" must be broken
* down into bits, which is what the "while" logic does below.
*/
mask = 0x01;
mask <<= (count - 1);
ctrl_reg = E1000_READ_REG(shared, CTRL);
/* Set MDIO_DIR (SWDPIO1) and MDC_DIR (SWDPIO2) direction bits to
* be used as output pins.
*/
ctrl_reg |= (E1000_CTRL_MDIO_DIR | E1000_CTRL_MDC_DIR);
while(mask) {
/* A "1" is shifted out to the PHY by setting the MDIO bit to
* "1" and then raising and lowering the Management Data Clock
* (MDC). A "0" is shifted out to the PHY by setting the MDIO
* bit to "0" and then raising and lowering the clock.
*/
if(data & mask)
ctrl_reg |= E1000_CTRL_MDIO;
else
ctrl_reg &= ~E1000_CTRL_MDIO;
E1000_WRITE_REG(shared, CTRL, ctrl_reg);
usec_delay(2);
e1000_raise_mdc(shared, &ctrl_reg);
e1000_lower_mdc(shared, &ctrl_reg);
mask = mask >> 1;
}
/* Clear the data bit just before leaving this routine. */
ctrl_reg &= ~E1000_CTRL_MDIO;
return;
}
/******************************************************************************
* Shifts data bits in from the PHY
*
* shared - Struct containing variables accessed by shared code
*
* Bits are shifted in in MSB to LSB order.
******************************************************************************/
static uint16_t
e1000_phy_shift_in(struct e1000_shared_adapter *shared)
{
uint32_t ctrl_reg;
uint16_t data = 0;
uint8_t i;
/* In order to read a register from the PHY, we need to shift in a
* total of 18 bits from the PHY. The first two bit (TurnAround)
* times are used to avoid contention on the MDIO pin when a read
* operation is performed. These two bits are ignored by us and
* thrown away. Bits are "shifted in" by raising the clock input
* to the Management Data Clock (setting the MDC bit), and then
* reading the value of the MDIO bit.
*/
ctrl_reg = E1000_READ_REG(shared, CTRL);
/* Clear MDIO_DIR (SWDPIO1) to indicate this bit is to be used as
* input.
*/
ctrl_reg &= ~E1000_CTRL_MDIO_DIR;
ctrl_reg &= ~E1000_CTRL_MDIO;
E1000_WRITE_REG(shared, CTRL, ctrl_reg);
/* Raise and Lower the clock before reading in the data. This
* accounts for the TurnAround bits. The first clock occurred
* when we clocked out the last bit of the Register Address.
*/
e1000_raise_mdc(shared, &ctrl_reg);
e1000_lower_mdc(shared, &ctrl_reg);
for(data = 0, i = 0; i < 16; i++) {
data = data << 1;
e1000_raise_mdc(shared, &ctrl_reg);
ctrl_reg = E1000_READ_REG(shared, CTRL);
/* Check to see if we shifted in a "1". */
if(ctrl_reg & E1000_CTRL_MDIO)
data |= 1;
e1000_lower_mdc(shared, &ctrl_reg);
}
e1000_raise_mdc(shared, &ctrl_reg);
e1000_lower_mdc(shared, &ctrl_reg);
/* Clear the MDIO bit just before leaving this routine. */
ctrl_reg &= ~E1000_CTRL_MDIO;
return (data);
}
/******************************************************************************
* Force PHY speed and duplex settings to shared->forced_speed_duplex
*
* shared - Struct containing variables accessed by shared code
******************************************************************************/
static void
e1000_phy_force_speed_duplex(struct e1000_shared_adapter *shared)
{
uint32_t tctl_reg;
uint32_t ctrl_reg;
uint32_t shift;
uint16_t mii_ctrl_reg;
uint16_t mii_status_reg;
uint16_t phy_data;
uint16_t i;
DEBUGFUNC("e1000_phy_force_speed_duplex");
/* Turn off Flow control if we are forcing speed and duplex. */
shared->fc = e1000_fc_none;
DEBUGOUT1("shared->fc = %d\n", shared->fc);
/* Read the Device Control Register. */
ctrl_reg = E1000_READ_REG(shared, CTRL);
/* Set the bits to Force Speed and Duplex in the Device Ctrl Reg. */
ctrl_reg |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl_reg &= ~(DEVICE_SPEED_MASK);
/* Clear the Auto Speed Detect Enable bit. */
ctrl_reg &= ~E1000_CTRL_ASDE;
/* Read the MII Control Register. */
mii_ctrl_reg = e1000_read_phy_reg(shared, PHY_CTRL);
/* We need to disable autoneg in order to force link and duplex. */
mii_ctrl_reg &= ~MII_CR_AUTO_NEG_EN;
/* Are we forcing Full or Half Duplex? */
if(shared->forced_speed_duplex == e1000_100_full ||
shared->forced_speed_duplex == e1000_10_full) {
/* We want to force full duplex so we SET the full duplex bits
* in the Device and MII Control Registers.
*/
ctrl_reg |= E1000_CTRL_FD;
mii_ctrl_reg |= MII_CR_FULL_DUPLEX;
DEBUGOUT("Full Duplex\n");
} else {
/* We want to force half duplex so we CLEAR the full duplex
* bits in the Device and MII Control Registers.
*/
ctrl_reg &= ~E1000_CTRL_FD;
mii_ctrl_reg &= ~MII_CR_FULL_DUPLEX; /* Do this implies HALF */
DEBUGOUT("Half Duplex\n");
}
/* Are we forcing 100Mbps??? */
if(shared->forced_speed_duplex == e1000_100_full ||
shared->forced_speed_duplex == e1000_100_half) {
/* Set the 100Mb bit and turn off the 1000Mb and 10Mb bits. */
ctrl_reg |= E1000_CTRL_SPD_100;
mii_ctrl_reg |= MII_CR_SPEED_100;
mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_10);
DEBUGOUT("Forcing 100mb ");
} else { /* Force 10MB Full or Half */
/* Set the 10Mb bit and turn off the 1000Mb and 100Mb bits. */
ctrl_reg &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
mii_ctrl_reg |= MII_CR_SPEED_10;
mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_100);
DEBUGOUT("Forcing 10mb ");
}
/* Now we need to configure the Collision Distance. We need to read
* the Transmit Control Register to do this.
* Note: This must be done for both Half or Full Duplex.
*/
tctl_reg = E1000_READ_REG(shared, TCTL);
DEBUGOUT1("tctl_reg = %x\n", tctl_reg);
if(!(mii_ctrl_reg & MII_CR_FULL_DUPLEX)) {
/* We are in Half Duplex mode so we need to set up our collision
* distance for 10/100.
*/
tctl_reg &= ~E1000_TCTL_COLD;
shift = E1000_HDX_COLLISION_DISTANCE;
shift <<= E1000_COLD_SHIFT;
tctl_reg |= shift;
} else {
/* We are in Full Duplex mode. We have the same collision
* distance regardless of speed.
*/
tctl_reg &= ~E1000_TCTL_COLD;
shift = E1000_FDX_COLLISION_DISTANCE;
shift <<= E1000_COLD_SHIFT;
tctl_reg |= shift;
}
/* Write the configured values back to the Transmit Control Reg. */
E1000_WRITE_REG(shared, TCTL, tctl_reg);
/* Write the configured values back to the Device Control Reg. */
E1000_WRITE_REG(shared, CTRL, ctrl_reg);
/* Write the MII Control Register with the new PHY configuration. */
phy_data = e1000_read_phy_reg(shared, M88E1000_PHY_SPEC_CTRL);
/* Clear Auto-Crossover to force MDI manually.
* M88E1000 requires MDI forced whenever speed/duplex is forced
*/
phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
e1000_write_phy_reg(shared, M88E1000_PHY_SPEC_CTRL, phy_data);
DEBUGOUT1("M88E1000 PSCR: %x \n", phy_data);
/* Need to reset the PHY or these bits will get ignored. */
mii_ctrl_reg |= MII_CR_RESET;
e1000_write_phy_reg(shared, PHY_CTRL, mii_ctrl_reg);
/* The wait_autoneg_complete flag may be a little misleading here.
* Since we are forcing speed and duplex, Auto-Neg is not enabled.
* But we do want to delay for a period while forcing only so we
* don't generate false No Link messages. So we will wait here
* only if the user has set wait_autoneg_complete to 1, which is
* the default.
*/
if(shared->wait_autoneg_complete) {
/* We will wait for autoneg to complete. */
DEBUGOUT("Waiting for forced speed/duplex link.\n");
mii_status_reg = 0;
/* We will wait for autoneg to complete or 4.5 seconds to expire. */
for(i = PHY_FORCE_TIME; i > 0; i--) {
/* Read the MII Status Register and wait for Auto-Neg
* Complete bit to be set.
*/
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
if(mii_status_reg & MII_SR_LINK_STATUS)
break;
msec_delay(100);
} /* end for loop */
if(i == 0) { /* We didn't get link */
/* Reset the DSP and wait again for link. */
e1000_phy_reset_dsp(shared);
}
/* This loop will early-out if the link condition has been met. */
for(i = PHY_FORCE_TIME; i > 0; i--) {
if(mii_status_reg & MII_SR_LINK_STATUS)
break;
msec_delay(100);
/* Read the MII Status Register and wait for Auto-Neg
* Complete bit to be set.
*/
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
} /* end for loop */
} /* end if wait_autoneg_complete */
/*
* Because we reset the PHY above, we need to re-force TX_CLK in the
* Extended PHY Specific Control Register to 25MHz clock. This
* value defaults back to a 2.5MHz clock when the PHY is reset.
*/
phy_data = e1000_read_phy_reg(shared, M88E1000_EXT_PHY_SPEC_CTRL);
phy_data |= M88E1000_EPSCR_TX_CLK_25;
e1000_write_phy_reg(shared, M88E1000_EXT_PHY_SPEC_CTRL, phy_data);
/* In addition, because of the s/w reset above, we need to enable
* CRS on TX. This must be set for both full and half duplex
* operation.
*/
phy_data = e1000_read_phy_reg(shared, M88E1000_PHY_SPEC_CTRL);
phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
e1000_write_phy_reg(shared, M88E1000_PHY_SPEC_CTRL, phy_data);
DEBUGOUT1("M88E1000 Phy Specific Ctrl Reg = %4x\r\n", phy_data);
return;
}
/*****************************************************************************
* Reads the value from a PHY register
*
* shared - Struct containing variables accessed by shared code
* reg_addr - address of the PHY register to read
******************************************************************************/
uint16_t
e1000_read_phy_reg(struct e1000_shared_adapter *shared,
uint32_t reg_addr)
{
uint32_t i;
uint32_t data = 0;
uint32_t command = 0;
ASSERT(reg_addr <= MAX_PHY_REG_ADDRESS);
if(shared->mac_type > e1000_82543) {
/* Set up Op-code, Phy Address, and
* register address in the MDI Control register. The MAC will
* take care of interfacing with the PHY to retrieve the
* desired data.
*/
command = ((reg_addr << E1000_MDIC_REG_SHIFT) |
(shared->phy_addr << E1000_MDIC_PHY_SHIFT) |
(E1000_MDIC_OP_READ));
E1000_WRITE_REG(shared, MDIC, command);
/* Check every 10 usec to see if the read completed. The read
* may take as long as 64 usecs (we'll wait 100 usecs max)
* from the CPU Write to the Ready bit assertion.
*/
for(i = 0; i < 64; i++) {
usec_delay(10);
data = E1000_READ_REG(shared, MDIC);
if(data & E1000_MDIC_READY)
break;
}
} else {
/* We must first send a preamble through the MDIO pin to signal the
* beginning of an MII instruction. This is done by sending 32
* consecutive "1" bits.
*/
e1000_phy_shift_out(shared, PHY_PREAMBLE, PHY_PREAMBLE_SIZE);
/* Now combine the next few fields that are required for a read
* operation. We use this method instead of calling the
* e1000_phy_shift_out routine five different times. The format of
* a MII read instruction consists of a shift out of 14 bits and is
* defined as follows:
* <Preamble><SOF><Op Code><Phy Addr><Reg Addr>
* followed by a shift in of 18 bits. This first two bits shifted
* in are TurnAround bits used to avoid contention on the MDIO pin
* when a READ operation is performed. These two bits are thrown
* away followed by a shift in of 16 bits which contains the
* desired data.
*/
command = ((reg_addr) |
(shared->phy_addr << 5) |
(PHY_OP_READ << 10) | (PHY_SOF << 12));
e1000_phy_shift_out(shared, command, 14);
/* Now that we've shifted out the read command to the MII, we need
* to "shift in" the 16-bit value (18 total bits) of the requested
* PHY register address.
*/
data = (uint32_t) e1000_phy_shift_in(shared);
}
ASSERT(!(data & E1000_MDIC_ERROR));
return ((uint16_t) data);
}
/******************************************************************************
* Writes a value to a PHY register
*
* shared - Struct containing variables accessed by shared code
* reg_addr - address of the PHY register to write
* data - data to write to the PHY
******************************************************************************/
void
e1000_write_phy_reg(struct e1000_shared_adapter *shared,
uint32_t reg_addr,
uint16_t data)
{
uint32_t i;
uint32_t command = 0;
uint32_t mdic_reg;
ASSERT(reg_addr <= MAX_PHY_REG_ADDRESS);
if(shared->mac_type > e1000_82543) {
/* Set up Op-code, Phy Address, register
* address, and data intended for the PHY register in the MDI
* Control register. The MAC will take care of interfacing
* with the PHY to send the desired data.
*/
command = (((uint32_t) data) |
(reg_addr << E1000_MDIC_REG_SHIFT) |
(shared->phy_addr << E1000_MDIC_PHY_SHIFT) |
(E1000_MDIC_OP_WRITE));
E1000_WRITE_REG(shared, MDIC, command);
/* Check every 10 usec to see if the read completed. The read
* may take as long as 64 usecs (we'll wait 100 usecs max)
* from the CPU Write to the Ready bit assertion.
*/
for(i = 0; i < 10; i++) {
usec_delay(10);
mdic_reg = E1000_READ_REG(shared, MDIC);
if(mdic_reg & E1000_MDIC_READY)
break;
}
} else {
/* We'll need to use the SW defined pins to shift the write command
* out to the PHY. We first send a preamble to the PHY to signal the
* beginning of the MII instruction. This is done by sending 32
* consecutive "1" bits.
*/
e1000_phy_shift_out(shared, PHY_PREAMBLE, PHY_PREAMBLE_SIZE);
/* Now combine the remaining required fields that will indicate
* a write operation. We use this method instead of calling the
* e1000_phy_shift_out routine for each field in the command. The
* format of a MII write instruction is as follows:
* <Preamble><SOF><Op Code><Phy Addr><Reg Addr><Turnaround><Data>.
*/
command = ((PHY_TURNAROUND) |
(reg_addr << 2) |
(shared->phy_addr << 7) |
(PHY_OP_WRITE << 12) | (PHY_SOF << 14));
command <<= 16;
command |= ((uint32_t) data);
e1000_phy_shift_out(shared, command, 32);
}
return;
}
/******************************************************************************
* Returns the PHY to the power-on reset state
*
* shared - Struct containing variables accessed by shared code
******************************************************************************/
void
e1000_phy_hw_reset(struct e1000_shared_adapter *shared)
{
uint32_t ctrl_reg;
uint32_t ctrl_ext_reg;
DEBUGFUNC("e1000_phy_hw_reset");
DEBUGOUT("Resetting Phy...\n");
if(shared->mac_type > e1000_82543) {
/* Read the device control register and assert the
* E1000_CTRL_PHY_RST bit. Hold for 20ms and then take it out
* of reset.
*/
ctrl_reg = E1000_READ_REG(shared, CTRL);
ctrl_reg |= E1000_CTRL_PHY_RST;
E1000_WRITE_REG(shared, CTRL, ctrl_reg);
msec_delay(20);
ctrl_reg &= ~E1000_CTRL_PHY_RST;
E1000_WRITE_REG(shared, CTRL, ctrl_reg);
msec_delay(20);
} else {
/* Read the Extended Device Control Register, assert the
* PHY_RESET_DIR bit. Then clock it out to the PHY.
*/
ctrl_ext_reg = E1000_READ_REG(shared, CTRL_EXT);
ctrl_ext_reg |= E1000_CTRL_PHY_RESET_DIR4;
E1000_WRITE_REG(shared, CTRL_EXT, ctrl_ext_reg);
msec_delay(20);
/* Set the reset bit in the device control register and clock
* it out to the PHY.
*/
ctrl_ext_reg = E1000_READ_REG(shared, CTRL_EXT);
ctrl_ext_reg &= ~E1000_CTRL_PHY_RESET4;
E1000_WRITE_REG(shared, CTRL_EXT, ctrl_ext_reg);
msec_delay(20);
ctrl_ext_reg = E1000_READ_REG(shared, CTRL_EXT);
ctrl_ext_reg |= E1000_CTRL_PHY_RESET4;
E1000_WRITE_REG(shared, CTRL_EXT, ctrl_ext_reg);
msec_delay(20);
}
return;
}
/******************************************************************************
* Resets the PHY
*
* shared - Struct containing variables accessed by shared code
*
* Sets bit 15 of the MII Control regiser
******************************************************************************/
boolean_t
e1000_phy_reset(struct e1000_shared_adapter *shared)
{
uint16_t reg_data;
uint16_t i;
DEBUGFUNC("e1000_phy_reset");
/* Read the MII control register, set the reset bit and write the
* value back by clocking it out to the PHY.
*/
reg_data = e1000_read_phy_reg(shared, PHY_CTRL);
reg_data |= MII_CR_RESET;
e1000_write_phy_reg(shared, PHY_CTRL, reg_data);
/* Wait for bit 15 of the MII Control Register to be cleared
* indicating the PHY has been reset.
*/
i = 0;
while((reg_data & MII_CR_RESET) && i++ < 500) {
reg_data = e1000_read_phy_reg(shared, PHY_CTRL);
usec_delay(1);
}
if(i >= 500) {
DEBUGOUT("Timeout waiting for PHY to reset.\n");
return FALSE;
}
return TRUE;
}
/******************************************************************************
* Detects which PHY is present and the speed and duplex
*
* shared - Struct containing variables accessed by shared code
* ctrl_reg - current value of the device control register
******************************************************************************/
boolean_t
e1000_phy_setup(struct e1000_shared_adapter *shared,
uint32_t ctrl_reg)
{
uint16_t mii_ctrl_reg;
uint16_t mii_status_reg;
uint16_t phy_specific_ctrl_reg;
uint16_t mii_autoneg_adv_reg;
uint16_t mii_1000t_ctrl_reg;
uint16_t i;
uint16_t data;
uint16_t autoneg_hw_setting;
uint16_t autoneg_fc_setting;
boolean_t restart_autoneg = FALSE;
boolean_t force_autoneg_restart = FALSE;
DEBUGFUNC("e1000_phy_setup");
/* We want to enable the Auto-Speed Detection bit in the Device
* Control Register. When set to 1, the MAC automatically detects
* the resolved speed of the link and self-configures appropriately.
* The Set Link Up bit must also be set for this behavior work
* properly.
*/
/* Nothing but 82543 and newer */
ASSERT(shared->mac_type >= e1000_82543);
/* With 82543, we need to force speed/duplex
* on the MAC equal to what the PHY speed/duplex configuration is.
* In addition, on 82543, we need to perform a hardware reset
* on the PHY to take it out of reset.
*/
if(shared->mac_type >= e1000_82544) {
ctrl_reg |= E1000_CTRL_SLU;
E1000_WRITE_REG(shared, CTRL, ctrl_reg);
} else {
ctrl_reg |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX | E1000_CTRL_SLU);
E1000_WRITE_REG(shared, CTRL, ctrl_reg);
if(shared->mac_type == e1000_82543)
e1000_phy_hw_reset(shared);
}
if(!e1000_detect_gig_phy(shared)) {
/* No PHY detected, return FALSE */
DEBUGOUT("PhySetup failure, did not detect valid phy.\n");
return (FALSE);
}
DEBUGOUT1("Phy ID = %x \n", shared->phy_id);
/* Read the MII Control Register. */
mii_ctrl_reg = e1000_read_phy_reg(shared, PHY_CTRL);
DEBUGOUT1("MII Ctrl Reg contents = %x\n", mii_ctrl_reg);
/* Check to see if the Auto Neg Enable bit is set in the MII Control
* Register. If not, we could be in a situation where a driver was
* loaded previously and was forcing speed and duplex. Then the
* driver was unloaded but a e1000_phy_hw_reset was not performed, so
* link was still being forced and link was still achieved. Then
* the driver was reloaded with the intention to auto-negotiate, but
* since link is already established we end up not restarting
* auto-neg. So if the auto-neg bit is not enabled and the driver
* is being loaded with the desire to auto-neg, we set this flag to
* to ensure the restart of the auto-neg engine later in the logic.
*/
if(!(mii_ctrl_reg & MII_CR_AUTO_NEG_EN))
force_autoneg_restart = TRUE;
/* Clear the isolate bit for normal operation and write it back to
* the MII Control Reg. Although the spec says this doesn't need
* to be done when the PHY address is not equal to zero, we do it
* anyway just to be safe.
*/
mii_ctrl_reg &= ~(MII_CR_ISOLATE);
e1000_write_phy_reg(shared, PHY_CTRL, mii_ctrl_reg);
data = e1000_read_phy_reg(shared, M88E1000_PHY_SPEC_CTRL);
/* Enable CRS on TX. This must be set for half-duplex operation. */
data |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
DEBUGOUT1("M88E1000 PSCR: %x \n", data);
e1000_write_phy_reg(shared, M88E1000_PHY_SPEC_CTRL, data);
data = e1000_read_phy_reg(shared, M88E1000_EXT_PHY_SPEC_CTRL);
/* Force TX_CLK in the Extended PHY Specific Control Register
* to 25MHz clock.
*/
data |= M88E1000_EPSCR_TX_CLK_25;
e1000_write_phy_reg(shared, M88E1000_EXT_PHY_SPEC_CTRL, data);
/* Certain PHYs will set the default of MII register 4 differently.
* We need to check this against our fc value. If it is
* different, we need to setup up register 4 correctly and restart
* autonegotiation.
*/
/* Read the MII Auto-Neg Advertisement Register (Address 4). */
mii_autoneg_adv_reg = e1000_read_phy_reg(shared, PHY_AUTONEG_ADV);
/* Shift right to put 10T-Half bit in bit 0
* Isolate the four bits for 100/10 Full/Half.
*/
autoneg_hw_setting = (mii_autoneg_adv_reg >> 5) & 0xF;
/* Get the 1000T settings. */
mii_1000t_ctrl_reg = e1000_read_phy_reg(shared, PHY_1000T_CTRL);
/* Isolate and OR in the 1000T settings. */
autoneg_hw_setting |= ((mii_1000t_ctrl_reg & 0x0300) >> 4);
/* mask all bits in the MII Auto-Neg Advertisement Register
* except for ASM_DIR and PAUSE and shift. This value
* will be used later to see if we need to restart Auto-Negotiation.
*/
autoneg_fc_setting = ((mii_autoneg_adv_reg & 0x0C00) >> 10);
/* Perform some bounds checking on the shared->autoneg_advertised
* parameter. If this variable is zero, then set it to the default.
*/
shared->autoneg_advertised &= AUTONEG_ADVERTISE_SPEED_DEFAULT;
/* If autoneg_advertised is zero, we assume it was not defaulted
* by the calling code so we set to advertise full capability.
*/
if(shared->autoneg_advertised == 0)
shared->autoneg_advertised = AUTONEG_ADVERTISE_SPEED_DEFAULT;
/* We could be in the situation where Auto-Neg has already completed
* and the user has not indicated any overrides. In this case we
* simply need to call e1000_get_speed_and_duplex to obtain the Auto-
* Negotiated speed and duplex, then return.
*/
if(!force_autoneg_restart && shared->autoneg &&
(shared->autoneg_advertised == autoneg_hw_setting) &&
(shared->fc == autoneg_fc_setting)) {
DEBUGOUT("No overrides - Reading MII Status Reg..\n");
/* Read the MII Status Register. We read this twice because
* certain bits are "sticky" and need to be read twice.
*/
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
DEBUGOUT1("MII Status Reg contents = %x\n", mii_status_reg);
/* Do we have link now? (if so, auto-neg has completed) */
if(mii_status_reg & MII_SR_LINK_STATUS) {
data = e1000_read_phy_reg(shared, M88E1000_PHY_SPEC_STATUS);
DEBUGOUT1("M88E1000 Phy Specific Status Reg contents = %x\n", data);
/* We have link, so we need to finish the config process:
* 1) Set up the MAC to the current PHY speed/duplex
* if we are on 82543. If we
* are on newer silicon, we only need to configure
* collision distance in the Transmit Control Register.
* 2) Set up flow control on the MAC to that established
* with the link partner.
*/
if(shared->mac_type >= e1000_82544)
e1000_config_collision_dist(shared);
else
e1000_config_mac_to_phy(shared, data);
e1000_config_fc_after_link_up(shared);
return (TRUE);
}
}
/* Options:
* MDI/MDI-X = 0 (default)
* 0 - Auto for all speeds
* 1 - MDI mode
* 2 - MDI-X mode
* 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
*/
phy_specific_ctrl_reg = e1000_read_phy_reg(shared, M88E1000_PHY_SPEC_CTRL);
phy_specific_ctrl_reg &= ~M88E1000_PSCR_AUTO_X_MODE;
switch (shared->mdix) {
case 1:
phy_specific_ctrl_reg |= M88E1000_PSCR_MDI_MANUAL_MODE;
break;
case 2:
phy_specific_ctrl_reg |= M88E1000_PSCR_MDIX_MANUAL_MODE;
break;
case 3:
phy_specific_ctrl_reg |= M88E1000_PSCR_AUTO_X_1000T;
break;
case 0:
default:
phy_specific_ctrl_reg |= M88E1000_PSCR_AUTO_X_MODE;
break;
}
e1000_write_phy_reg(shared, M88E1000_PHY_SPEC_CTRL, phy_specific_ctrl_reg);
/* Options:
* disable_polarity_correction = 0 (default)
* Automatic Correction for Reversed Cable Polarity
* 0 - Disabled
* 1 - Enabled
*/
phy_specific_ctrl_reg = e1000_read_phy_reg(shared, M88E1000_PHY_SPEC_CTRL);
phy_specific_ctrl_reg &= ~M88E1000_PSCR_POLARITY_REVERSAL;
if(shared->disable_polarity_correction == 1)
phy_specific_ctrl_reg |= M88E1000_PSCR_POLARITY_REVERSAL;
e1000_write_phy_reg(shared, M88E1000_PHY_SPEC_CTRL, phy_specific_ctrl_reg);
/* Options:
* autoneg = 1 (default)
* PHY will advertise value(s) parsed from
* autoneg_advertised and fc
* autoneg = 0
* PHY will be set to 10H, 10F, 100H, or 100F
* depending on value parsed from forced_speed_duplex.
*/
/* Is autoneg enabled? This is enabled by default or by software override.
* If so, call e1000_phy_setup_autoneg routine to parse the
* autoneg_advertised and fc options. If autoneg is NOT enabled, then the
* user should have provided a speed/duplex override. If so, then call
* e1000_phy_force_speed_duplex to parse and set this up. Otherwise,
* we are in an error situation and need to bail.
*/
if(shared->autoneg) {
DEBUGOUT("Reconfiguring auto-neg advertisement params\n");
restart_autoneg = e1000_phy_setup_autoneg(shared);
} else {
DEBUGOUT("Forcing speed and duplex\n");
e1000_phy_force_speed_duplex(shared);
}
/* Based on information parsed above, check the flag to indicate
* whether we need to restart Auto-Neg.
*/
if(restart_autoneg) {
DEBUGOUT("Restarting Auto-Neg\n");
/* Read the MII Control Register. */
mii_ctrl_reg = e1000_read_phy_reg(shared, PHY_CTRL);
/* Restart auto-negotiation by setting the Auto Neg Enable bit and
* the Auto Neg Restart bit.
*/
mii_ctrl_reg |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG);
e1000_write_phy_reg(shared, PHY_CTRL, mii_ctrl_reg);
/* Does the user want to wait for Auto-Neg to complete here, or
* check at a later time (for example, callback routine).
*/
if(shared->wait_autoneg_complete)
e1000_wait_autoneg(shared);
} /* end if restart_autoneg */
/* Read the MII Status Register. */
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
DEBUGOUT1("Checking for link status - MII Status Reg contents = %x\n",
mii_status_reg);
/* Check link status. Wait up to 100 microseconds for link to
* become valid.
*/
for(i = 0; i < 10; i++) {
if(mii_status_reg & MII_SR_LINK_STATUS)
break;
usec_delay(10);
DEBUGOUT(". ");
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
}
if(mii_status_reg & MII_SR_LINK_STATUS) {
/* Yes, so configure MAC to PHY settings as well as flow control
* registers.
*/
data = e1000_read_phy_reg(shared, M88E1000_PHY_SPEC_STATUS);
DEBUGOUT1("M88E1000 Phy Specific Status Reg contents = %x\n", data);
/* We have link, so we need to finish the config process:
* 1) Set up the MAC to the current PHY speed/duplex
* if we are on 82543. If we
* are on newer silicon, we only need to configure
* collision distance in the Transmit Control Register.
* 2) Set up flow control on the MAC to that established with
* the link partner.
*/
if(shared->mac_type >= e1000_82544)
e1000_config_collision_dist(shared);
else
e1000_config_mac_to_phy(shared, data);
e1000_config_fc_after_link_up(shared);
DEBUGOUT("Valid link established!!!\n");
} else {
DEBUGOUT("Unable to establish link!!!\n");
}
return (TRUE);
}
/******************************************************************************
* Configures PHY autoneg and flow control advertisement settings
*
* shared - Struct containing variables accessed by shared code
******************************************************************************/
boolean_t
e1000_phy_setup_autoneg(struct e1000_shared_adapter *shared)
{
uint16_t mii_autoneg_adv_reg;
uint16_t mii_1000t_ctrl_reg;
DEBUGFUNC("e1000_phy_setup_autoneg");
/* Read the MII Auto-Neg Advertisement Register (Address 4). */
mii_autoneg_adv_reg = e1000_read_phy_reg(shared, PHY_AUTONEG_ADV);
/* Read the MII 1000Base-T Control Register (Address 9). */
mii_1000t_ctrl_reg = e1000_read_phy_reg(shared, PHY_1000T_CTRL);
/* Need to parse both autoneg_advertised and fc and set up
* the appropriate PHY registers. First we will parse for
* autoneg_advertised software override. Since we can advertise
* a plethora of combinations, we need to check each bit
* individually.
*/
/* 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 &= ~REG4_SPEED_MASK;
mii_1000t_ctrl_reg &= ~REG9_SPEED_MASK;
DEBUGOUT1("autoneg_advertised %x\n", shared->autoneg_advertised);
/* Do we want to advertise 10 Mb Half Duplex? */
if(shared->autoneg_advertised & ADVERTISE_10_HALF) {
DEBUGOUT("Advertise 10mb Half duplex\n");
mii_autoneg_adv_reg |= NWAY_AR_10T_HD_CAPS;
}
/* Do we want to advertise 10 Mb Full Duplex? */
if(shared->autoneg_advertised & ADVERTISE_10_FULL) {
DEBUGOUT("Advertise 10mb Full duplex\n");
mii_autoneg_adv_reg |= NWAY_AR_10T_FD_CAPS;
}
/* Do we want to advertise 100 Mb Half Duplex? */
if(shared->autoneg_advertised & ADVERTISE_100_HALF) {
DEBUGOUT("Advertise 100mb Half duplex\n");
mii_autoneg_adv_reg |= NWAY_AR_100TX_HD_CAPS;
}
/* Do we want to advertise 100 Mb Full Duplex? */
if(shared->autoneg_advertised & ADVERTISE_100_FULL) {
DEBUGOUT("Advertise 100mb Full duplex\n");
mii_autoneg_adv_reg |= NWAY_AR_100TX_FD_CAPS;
}
/* We do not allow the Phy to advertise 1000 Mb Half Duplex */
if(shared->autoneg_advertised & ADVERTISE_1000_HALF) {
DEBUGOUT("Advertise 1000mb Half duplex requested, request denied!\n");
}
/* Do we want to advertise 1000 Mb Full Duplex? */
if(shared->autoneg_advertised & ADVERTISE_1000_FULL) {
DEBUGOUT("Advertise 1000mb Full duplex\n");
mii_1000t_ctrl_reg |= CR_1000T_FD_CAPS;
}
/* Check for a software override of the flow control settings, and
* setup the PHY advertisement registers accordingly. If
* auto-negotiation is enabled, then software will have to set the
* "PAUSE" bits to the correct value in the Auto-Negotiation
* Advertisement Register (PHY_AUTONEG_ADV) and re-start auto-negotiation.
*
* The possible values of the "fc" parameter are:
* 0: Flow control is completely disabled
* 1: Rx flow control is enabled (we can receive pause frames
* but not send pause frames).
* 2: Tx flow control is enabled (we can send pause frames
* but we do not support receiving pause frames).
* 3: Both Rx and TX flow control (symmetric) are enabled.
* other: No software override. The flow control configuration
* in the EEPROM is used.
*/
switch (shared->fc) {
case e1000_fc_none: /* 0 */
/* Flow control (RX & TX) is completely disabled by a
* software over-ride.
*/
mii_autoneg_adv_reg &= ~(NWAY_AR_ASM_DIR | NWAY_AR_PAUSE);
break;
case e1000_fc_rx_pause: /* 1 */
/* RX Flow control is enabled, and TX Flow control is
* disabled, by a software over-ride.
*/
/* Since there really isn't a way to advertise that we are
* capable of RX Pause ONLY, we will advertise that we
* support both symmetric and asymmetric RX PAUSE. Later
* (in e1000_config_fc_after_link_up) we will disable the
*shared's ability to send PAUSE frames.
*/
mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE);
break;
case e1000_fc_tx_pause: /* 2 */
/* TX Flow control is enabled, and RX Flow control is
* disabled, by a software over-ride.
*/
mii_autoneg_adv_reg |= NWAY_AR_ASM_DIR;
mii_autoneg_adv_reg &= ~NWAY_AR_PAUSE;
break;
case e1000_fc_full: /* 3 */
/* Flow control (both RX and TX) is enabled by a software
* over-ride.
*/
mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE);
break;
default:
/* We should never get here. The value should be 0-3. */
DEBUGOUT("Flow control param set incorrectly\n");
ASSERT(0);
break;
}
/* Write the MII Auto-Neg Advertisement Register (Address 4). */
e1000_write_phy_reg(shared, PHY_AUTONEG_ADV, mii_autoneg_adv_reg);
DEBUGOUT1("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg);
/* Write the MII 1000Base-T Control Register (Address 9). */
e1000_write_phy_reg(shared, PHY_1000T_CTRL, mii_1000t_ctrl_reg);
return (TRUE);
}
/******************************************************************************
* Sets MAC speed and duplex settings to reflect the those in the PHY
*
* shared - Struct containing variables accessed by shared code
* mii_reg - data to write to the MII control register
*
* The contents of the PHY register containing the needed information need to
* be passed in.
******************************************************************************/
void
e1000_config_mac_to_phy(struct e1000_shared_adapter *shared,
uint16_t mii_reg)
{
uint32_t ctrl_reg;
uint32_t tctl_reg;
uint32_t shift;
DEBUGFUNC("e1000_config_mac_to_phy");
/* We need to read the Transmit Control register to configure the
* collision distance.
* Note: This must be done for both Half or Full Duplex.
*/
tctl_reg = E1000_READ_REG(shared, TCTL);
DEBUGOUT1("tctl_reg = %x\n", tctl_reg);
/* Read the Device Control Register and set the bits to Force Speed
* and Duplex.
*/
ctrl_reg = E1000_READ_REG(shared, CTRL);
ctrl_reg |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
ctrl_reg &= ~(DEVICE_SPEED_MASK);
DEBUGOUT1("MII Register Data = %x\r\n", mii_reg);
/* Clear the ILOS bit. */
ctrl_reg &= ~E1000_CTRL_ILOS;
/* Set up duplex in the Device Control and Transmit Control
* registers depending on negotiated values.
*/
if(mii_reg & M88E1000_PSSR_DPLX) {
ctrl_reg |= E1000_CTRL_FD;
/* We are in Full Duplex mode. We have the same collision
* distance regardless of speed.
*/
tctl_reg &= ~E1000_TCTL_COLD;
shift = E1000_FDX_COLLISION_DISTANCE;
shift <<= E1000_COLD_SHIFT;
tctl_reg |= shift;
} else {
ctrl_reg &= ~E1000_CTRL_FD;
/* We are in Half Duplex mode. Our Half Duplex collision
* distance is different for Gigabit than for 10/100 so we will
* set accordingly.
*/
if((mii_reg & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) {
/* 1000Mbs HDX */
tctl_reg &= ~E1000_TCTL_COLD;
shift = E1000_GB_HDX_COLLISION_DISTANCE;
shift <<= E1000_COLD_SHIFT;
tctl_reg |= shift;
tctl_reg |= E1000_TCTL_PBE; /* Enable Packet Bursting */
} else {
/* 10/100Mbs HDX */
tctl_reg &= ~E1000_TCTL_COLD;
shift = E1000_HDX_COLLISION_DISTANCE;
shift <<= E1000_COLD_SHIFT;
tctl_reg |= shift;
}
}
/* Set up speed in the Device Control register depending on
* negotiated values.
*/
if((mii_reg & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS)
ctrl_reg |= E1000_CTRL_SPD_1000;
else if((mii_reg & M88E1000_PSSR_SPEED) == M88E1000_PSSR_100MBS)
ctrl_reg |= E1000_CTRL_SPD_100;
else
ctrl_reg &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
/* Write the configured values back to the Transmit Control Reg. */
E1000_WRITE_REG(shared, TCTL, tctl_reg);
/* Write the configured values back to the Device Control Reg. */
E1000_WRITE_REG(shared, CTRL, ctrl_reg);
return;
}
/******************************************************************************
* Sets the collision distance in the Transmit Control register
*
* shared - Struct containing variables accessed by shared code
*
* Link should have been established previously. Reads the speed and duplex
* information from the Device Status register.
******************************************************************************/
void
e1000_config_collision_dist(struct e1000_shared_adapter *shared)
{
uint32_t tctl_reg;
uint16_t speed;
uint16_t duplex;
uint32_t shift;
DEBUGFUNC("e1000_config_collision_dist");
/* Get our current speed and duplex from the Device Status Register. */
e1000_get_speed_and_duplex(shared, &speed, &duplex);
/* We need to configure the Collision Distance for both Full or
* Half Duplex.
*/
tctl_reg = E1000_READ_REG(shared, TCTL);
DEBUGOUT1("tctl_reg = %x\n", tctl_reg);
/* mask the Collision Distance bits in the Transmit Control Reg. */
tctl_reg &= ~E1000_TCTL_COLD;
if(duplex == FULL_DUPLEX) {
/* We are in Full Duplex mode. Therefore, the collision distance
* is the same regardless of speed.
*/
shift = E1000_FDX_COLLISION_DISTANCE;
shift <<= E1000_COLD_SHIFT;
tctl_reg |= shift;
} else {
/* We are in Half Duplex mode. Half Duplex collision distance is
* different for Gigabit vs. 10/100, so we will set accordingly.
*/
if(speed == SPEED_1000) { /* 1000Mbs HDX */
shift = E1000_GB_HDX_COLLISION_DISTANCE;
shift <<= E1000_COLD_SHIFT;
tctl_reg |= shift;
tctl_reg |= E1000_TCTL_PBE; /* Enable Packet Bursting */
} else { /* 10/100Mbs HDX */
shift = E1000_HDX_COLLISION_DISTANCE;
shift <<= E1000_COLD_SHIFT;
tctl_reg |= shift;
}
}
/* Write the configured values back to the Transmit Control Reg. */
E1000_WRITE_REG(shared, TCTL, tctl_reg);
return;
}
/******************************************************************************
* Probes the expected PHY address for known PHY IDs
*
* shared - Struct containing variables accessed by shared code
******************************************************************************/
boolean_t
e1000_detect_gig_phy(struct e1000_shared_adapter *shared)
{
uint32_t phy_id_high;
uint16_t phy_id_low;
DEBUGFUNC("e1000_detect_gig_phy");
/* Read the PHY ID Registers to identify which PHY is onboard. */
shared->phy_addr = 1;
phy_id_high = e1000_read_phy_reg(shared, PHY_ID1);
usec_delay(2);
phy_id_low = e1000_read_phy_reg(shared, PHY_ID2);
shared->phy_id = (phy_id_low | (phy_id_high << 16)) & PHY_REVISION_MASK;
if(shared->phy_id == M88E1000_12_PHY_ID ||
shared->phy_id == M88E1000_14_PHY_ID ||
shared->phy_id == M88E1000_I_PHY_ID) {
DEBUGOUT2("phy_id 0x%x detected at address 0x%x\n",
shared->phy_id, shared->phy_addr);
return (TRUE);
} else {
DEBUGOUT("Could not auto-detect Phy!\n");
return (FALSE);
}
}
/******************************************************************************
* Resets the PHY's DSP
*
* shared - Struct containing variables accessed by shared code
******************************************************************************/
void
e1000_phy_reset_dsp(struct e1000_shared_adapter *shared)
{
e1000_write_phy_reg(shared, 29, 0x1d);
e1000_write_phy_reg(shared, 30, 0xc1);
e1000_write_phy_reg(shared, 30, 0x00);
return;
}
/******************************************************************************
* Blocks until autoneg completes or times out (~4.5 seconds)
*
* shared - Struct containing variables accessed by shared code
******************************************************************************/
boolean_t
e1000_wait_autoneg(struct e1000_shared_adapter *shared)
{
uint16_t i;
uint16_t mii_status_reg;
boolean_t autoneg_complete = FALSE;
DEBUGFUNC("e1000_wait_autoneg");
/* We will wait for autoneg to complete. */
DEBUGOUT("Waiting for Auto-Neg to complete.\n");
mii_status_reg = 0;
/* We will wait for autoneg to complete or 4.5 seconds to expire. */
for(i = PHY_AUTO_NEG_TIME; i > 0; i--) {
/* Read the MII Status Register and wait for Auto-Neg
* Complete bit to be set.
*/
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
if(mii_status_reg & MII_SR_AUTONEG_COMPLETE) {
autoneg_complete = TRUE;
break;
}
msec_delay(100);
}
return (autoneg_complete);
}
/******************************************************************************
* Get PHY information from various PHY registers
*
* shared - Struct containing variables accessed by shared code
* phy_status_info - PHY information structure
******************************************************************************/
boolean_t
e1000_phy_get_info(struct e1000_shared_adapter *shared,
struct e1000_phy_info *phy_status_info)
{
uint16_t phy_mii_status_reg;
uint16_t phy_specific_ctrl_reg;
uint16_t phy_specific_status_reg;
uint16_t phy_specific_ext_ctrl_reg;
uint16_t phy_1000t_stat_reg;
phy_status_info->cable_length = e1000_cable_length_undefined;
phy_status_info->extended_10bt_distance =
e1000_10bt_ext_dist_enable_undefined;
phy_status_info->cable_polarity = e1000_rev_polarity_undefined;
phy_status_info->polarity_correction = e1000_polarity_reversal_undefined;
phy_status_info->link_reset = e1000_down_no_idle_undefined;
phy_status_info->mdix_mode = e1000_auto_x_mode_undefined;
phy_status_info->local_rx = e1000_1000t_rx_status_undefined;
phy_status_info->remote_rx = e1000_1000t_rx_status_undefined;
/* PHY info only valid for copper media. */
if(shared == NULL || shared->media_type != e1000_media_type_copper)
return FALSE;
/* PHY info only valid for LINK UP. Read MII status reg
* back-to-back to get link status.
*/
phy_mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
phy_mii_status_reg = e1000_read_phy_reg(shared, PHY_STATUS);
if((phy_mii_status_reg & MII_SR_LINK_STATUS) != MII_SR_LINK_STATUS)
return FALSE;
/* Read various PHY registers to get the PHY info. */
phy_specific_ctrl_reg = e1000_read_phy_reg(shared, M88E1000_PHY_SPEC_CTRL);
phy_specific_status_reg =
e1000_read_phy_reg(shared, M88E1000_PHY_SPEC_STATUS);
phy_specific_ext_ctrl_reg =
e1000_read_phy_reg(shared, M88E1000_EXT_PHY_SPEC_CTRL);
phy_1000t_stat_reg = e1000_read_phy_reg(shared, PHY_1000T_STATUS);
phy_status_info->cable_length =
((phy_specific_status_reg & M88E1000_PSSR_CABLE_LENGTH) >>
M88E1000_PSSR_CABLE_LENGTH_SHIFT);
phy_status_info->extended_10bt_distance =
(phy_specific_ctrl_reg & M88E1000_PSCR_10BT_EXT_DIST_ENABLE) >>
M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT;
phy_status_info->cable_polarity =
(phy_specific_status_reg & M88E1000_PSSR_REV_POLARITY) >>
M88E1000_PSSR_REV_POLARITY_SHIFT;
phy_status_info->polarity_correction =
(phy_specific_ctrl_reg & M88E1000_PSCR_POLARITY_REVERSAL) >>
M88E1000_PSCR_POLARITY_REVERSAL_SHIFT;
phy_status_info->link_reset =
(phy_specific_ext_ctrl_reg & M88E1000_EPSCR_DOWN_NO_IDLE) >>
M88E1000_EPSCR_DOWN_NO_IDLE_SHIFT;
phy_status_info->mdix_mode =
(phy_specific_status_reg & M88E1000_PSSR_MDIX) >>
M88E1000_PSSR_MDIX_SHIFT;
phy_status_info->local_rx =
(phy_1000t_stat_reg & SR_1000T_LOCAL_RX_STATUS) >>
SR_1000T_LOCAL_RX_STATUS_SHIFT;
phy_status_info->remote_rx =
(phy_1000t_stat_reg & SR_1000T_REMOTE_RX_STATUS) >>
SR_1000T_REMOTE_RX_STATUS_SHIFT;
return TRUE;
}
boolean_t
e1000_validate_mdi_setting(struct e1000_shared_adapter *shared)
{
if(!shared->autoneg && (shared->mdix == 0 || shared->mdix == 3)) {
shared->mdix = 1;
return FALSE;
}
return TRUE;
}
drivers/net/e1000/e1000_phy.h 0 → 100644
View file @ 87a54bc3
/*******************************************************************************
This software program is available to you under a choice of one of two
licenses. You may choose to be licensed under either the GNU General Public
License (GPL) Version 2, June 1991, available at
http://www.fsf.org/copyleft/gpl.html, or the Intel BSD + Patent License, the
text of which follows:
Recipient has requested a license and Intel Corporation ("Intel") is willing
to grant a license for the software entitled Linux Base Driver for the
Intel(R) PRO/1000 Family of Adapters (e1000) (the "Software") being provided
by Intel Corporation. The following definitions apply to this license:
"Licensed Patents" means patent claims licensable by Intel Corporation which
are necessarily infringed by the use of sale of the Software alone or when
combined with the operating system referred to below.
"Recipient" means the party to whom Intel delivers this Software.
"Licensee" means Recipient and those third parties that receive a license to
any operating system available under the GNU Public License version 2.0 or
later.
Copyright (c) 1999 - 2002 Intel Corporation.
All rights reserved.
The license is provided to Recipient and Recipient's Licensees under the
following terms.
Redistribution and use in source and binary forms of the Software, with or
without modification, are permitted provided that the following conditions
are met:
Redistributions of source code of the Software may retain the above
copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form of the Software may reproduce the above
copyright notice, this list of conditions and the following disclaimer in
the documentation and/or materials provided with the distribution.
Neither the name of Intel Corporation nor the names of its contributors
shall be used to endorse or promote products derived from this Software
without specific prior written permission.
Intel hereby grants Recipient and Licensees a non-exclusive, worldwide,
royalty-free patent license under Licensed Patents to make, use, sell, offer
to sell, import and otherwise transfer the Software, if any, in source code
and object code form. This license shall include changes to the Software
that are error corrections or other minor changes to the Software that do
not add functionality or features when the Software is incorporated in any
version of an operating system that has been distributed under the GNU
General Public License 2.0 or later. This patent license shall apply to the
combination of the Software and any operating system licensed under the GNU
Public License version 2.0 or later if, at the time Intel provides the
Software to Recipient, such addition of the Software to the then publicly
available versions of such operating systems available under the GNU Public
License version 2.0 or later (whether in gold, beta or alpha form) causes
such combination to be covered by the Licensed Patents. The patent license
shall not apply to any other combinations which include the Software. NO
hardware per se is licensed hereunder.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR IT CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
ANY LOSS OF USE; DATA, OR PROFITS; OR BUSINESS INTERUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY, WHETHER IN 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.
*******************************************************************************/
/* e1000_phy.h
* Structures, enums, and macros for the PHY
*/
#ifndef _E1000_PHY_H_
#define _E1000_PHY_H_
#include "e1000_osdep.h"
/* PHY status info structure and supporting enums */
typedef enum {
e1000_cable_length_50 = 0,
e1000_cable_length_50_80,
e1000_cable_length_80_110,
e1000_cable_length_110_140,
e1000_cable_length_140,
e1000_cable_length_undefined = 0xFF
} e1000_cable_length;
typedef enum {
e1000_10bt_ext_dist_enable_normal = 0,
e1000_10bt_ext_dist_enable_lower,
e1000_10bt_ext_dist_enable_undefined = 0xFF
} e1000_10bt_ext_dist_enable;
typedef enum {
e1000_rev_polarity_normal = 0,
e1000_rev_polarity_reversed,
e1000_rev_polarity_undefined = 0xFF
} e1000_rev_polarity;
typedef enum {
e1000_polarity_reversal_enabled = 0,
e1000_polarity_reversal_disabled,
e1000_polarity_reversal_undefined = 0xFF
} e1000_polarity_reversal;
typedef enum {
e1000_down_no_idle_no_detect = 0,
e1000_down_no_idle_detect,
e1000_down_no_idle_undefined = 0xFF
} e1000_down_no_idle;
typedef enum {
e1000_auto_x_mode_manual_mdi = 0,
e1000_auto_x_mode_manual_mdix,
e1000_auto_x_mode_auto1,
e1000_auto_x_mode_auto2,
e1000_auto_x_mode_undefined = 0xFF
} e1000_auto_x_mode;
typedef enum {
e1000_1000t_rx_status_not_ok = 0,
e1000_1000t_rx_status_ok,
e1000_1000t_rx_status_undefined = 0xFF
} e1000_1000t_rx_status;
struct e1000_phy_info {
e1000_cable_length cable_length;
e1000_10bt_ext_dist_enable extended_10bt_distance;
e1000_rev_polarity cable_polarity;
e1000_polarity_reversal polarity_correction;
e1000_down_no_idle link_reset;
e1000_auto_x_mode mdix_mode;
e1000_1000t_rx_status local_rx;
e1000_1000t_rx_status remote_rx;
};
struct e1000_phy_stats {
uint32_t idle_errors;
uint32_t receive_errors;
};
/* Function Prototypes */
uint16_t e1000_read_phy_reg(struct e1000_shared_adapter *shared, uint32_t reg_addr);
void e1000_write_phy_reg(struct e1000_shared_adapter *shared, uint32_t reg_addr, uint16_t data);
void e1000_phy_hw_reset(struct e1000_shared_adapter *shared);
boolean_t e1000_phy_reset(struct e1000_shared_adapter *shared);
boolean_t e1000_phy_setup(struct e1000_shared_adapter *shared, uint32_t ctrl_reg);
boolean_t e1000_phy_setup_autoneg(struct e1000_shared_adapter *shared);
void e1000_config_mac_to_phy(struct e1000_shared_adapter *shared, uint16_t mii_reg);
void e1000_config_collision_dist(struct e1000_shared_adapter *shared);
boolean_t e1000_detect_gig_phy(struct e1000_shared_adapter *shared);
void e1000_phy_reset_dsp(struct e1000_shared_adapter *shared);
boolean_t e1000_wait_autoneg(struct e1000_shared_adapter *shared);
boolean_t e1000_phy_get_info(struct e1000_shared_adapter *shared, struct e1000_phy_info *phy_status_info);
boolean_t e1000_validate_mdi_setting(struct e1000_shared_adapter *shared);
/* Bit definitions for the Management Data IO (MDIO) and Management Data
* Clock (MDC) pins in the Device Control Register.
*/
#define E1000_CTRL_PHY_RESET_DIR E1000_CTRL_SWDPIO0
#define E1000_CTRL_PHY_RESET E1000_CTRL_SWDPIN0
#define E1000_CTRL_MDIO_DIR E1000_CTRL_SWDPIO2
#define E1000_CTRL_MDIO E1000_CTRL_SWDPIN2
#define E1000_CTRL_MDC_DIR E1000_CTRL_SWDPIO3
#define E1000_CTRL_MDC E1000_CTRL_SWDPIN3
#define E1000_CTRL_PHY_RESET_DIR4 E1000_CTRL_EXT_SDP4_DIR
#define E1000_CTRL_PHY_RESET4 E1000_CTRL_EXT_SDP4_DATA
/* PHY 1000 MII Register/Bit Definitions */
/* PHY Registers defined by IEEE */
#define PHY_CTRL 0x00 /* Control Register */
#define PHY_STATUS 0x01 /* Status Regiser */
#define PHY_ID1 0x02 /* Phy Id Reg (word 1) */
#define PHY_ID2 0x03 /* Phy Id Reg (word 2) */
#define PHY_AUTONEG_ADV 0x04 /* Autoneg Advertisement */
#define PHY_LP_ABILITY 0x05 /* Link Partner Ability (Base Page) */
#define PHY_AUTONEG_EXP 0x06 /* Autoneg Expansion Reg */
#define PHY_NEXT_PAGE_TX 0x07 /* Next Page TX */
#define PHY_LP_NEXT_PAGE 0x08 /* Link Partner Next Page */
#define PHY_1000T_CTRL 0x09 /* 1000Base-T Control Reg */
#define PHY_1000T_STATUS 0x0A /* 1000Base-T Status Reg */
#define PHY_EXT_STATUS 0x0F /* Extended Status Reg */
/* M88E1000 Specific Registers */
#define M88E1000_PHY_SPEC_CTRL 0x10 /* PHY Specific Control Register */
#define M88E1000_PHY_SPEC_STATUS 0x11 /* PHY Specific Status Register */
#define M88E1000_INT_ENABLE 0x12 /* Interrupt Enable Register */
#define M88E1000_INT_STATUS 0x13 /* Interrupt Status Register */
#define M88E1000_EXT_PHY_SPEC_CTRL 0x14 /* Extended PHY Specific Control */
#define M88E1000_RX_ERR_CNTR 0x15 /* Receive Error Counter */
#define MAX_PHY_REG_ADDRESS 0x1F /* 5 bit address bus (0-0x1F) */
/* PHY Control Register */
#define MII_CR_SPEED_SELECT_MSB 0x0040 /* bits 6,13: 10=1000, 01=100, 00=10 */
#define MII_CR_COLL_TEST_ENABLE 0x0080 /* Collision test enable */
#define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */
#define MII_CR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */
#define MII_CR_ISOLATE 0x0400 /* Isolate PHY from MII */
#define MII_CR_POWER_DOWN 0x0800 /* Power down */
#define MII_CR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */
#define MII_CR_SPEED_SELECT_LSB 0x2000 /* bits 6,13: 10=1000, 01=100, 00=10 */
#define MII_CR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */
#define MII_CR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */
/* PHY Status Register */
#define MII_SR_EXTENDED_CAPS 0x0001 /* Extended register capabilities */
#define MII_SR_JABBER_DETECT 0x0002 /* Jabber Detected */
#define MII_SR_LINK_STATUS 0x0004 /* Link Status 1 = link */
#define MII_SR_AUTONEG_CAPS 0x0008 /* Auto Neg Capable */
#define MII_SR_REMOTE_FAULT 0x0010 /* Remote Fault Detect */
#define MII_SR_AUTONEG_COMPLETE 0x0020 /* Auto Neg Complete */
#define MII_SR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */
#define MII_SR_EXTENDED_STATUS 0x0100 /* Ext. status info in Reg 0x0F */
#define MII_SR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */
#define MII_SR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */
#define MII_SR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */
#define MII_SR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */
#define MII_SR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */
#define MII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */
#define MII_SR_100T4_CAPS 0x8000 /* 100T4 Capable */
/* Autoneg Advertisement Register */
#define NWAY_AR_SELECTOR_FIELD 0x0001 /* indicates IEEE 802.3 CSMA/CD */
#define NWAY_AR_10T_HD_CAPS 0x0020 /* 10T Half Duplex Capable */
#define NWAY_AR_10T_FD_CAPS 0x0040 /* 10T Full Duplex Capable */
#define NWAY_AR_100TX_HD_CAPS 0x0080 /* 100TX Half Duplex Capable */
#define NWAY_AR_100TX_FD_CAPS 0x0100 /* 100TX Full Duplex Capable */
#define NWAY_AR_100T4_CAPS 0x0200 /* 100T4 Capable */
#define NWAY_AR_PAUSE 0x0400 /* Pause operation desired */
#define NWAY_AR_ASM_DIR 0x0800 /* Asymmetric Pause Direction bit */
#define NWAY_AR_REMOTE_FAULT 0x2000 /* Remote Fault detected */
#define NWAY_AR_NEXT_PAGE 0x8000 /* Next Page ability supported */
/* Link Partner Ability Register (Base Page) */
#define NWAY_LPAR_SELECTOR_FIELD 0x0000 /* LP protocol selector field */
#define NWAY_LPAR_10T_HD_CAPS 0x0020 /* LP is 10T Half Duplex Capable */
#define NWAY_LPAR_10T_FD_CAPS 0x0040 /* LP is 10T Full Duplex Capable */
#define NWAY_LPAR_100TX_HD_CAPS 0x0080 /* LP is 100TX Half Duplex Capable */
#define NWAY_LPAR_100TX_FD_CAPS 0x0100 /* LP is 100TX Full Duplex Capable */
#define NWAY_LPAR_100T4_CAPS 0x0200 /* LP is 100T4 Capable */
#define NWAY_LPAR_PAUSE 0x0400 /* LP Pause operation desired */
#define NWAY_LPAR_ASM_DIR 0x0800 /* LP Asymmetric Pause Direction bit */
#define NWAY_LPAR_REMOTE_FAULT 0x2000 /* LP has detected Remote Fault */
#define NWAY_LPAR_ACKNOWLEDGE 0x4000 /* LP has rx'd link code word */
#define NWAY_LPAR_NEXT_PAGE 0x8000 /* Next Page ability supported */
/* Autoneg Expansion Register */
#define NWAY_ER_LP_NWAY_CAPS 0x0001 /* LP has Auto Neg Capability */
#define NWAY_ER_PAGE_RXD 0x0002 /* LP is 10T Half Duplex Capable */
#define NWAY_ER_NEXT_PAGE_CAPS 0x0004 /* LP is 10T Full Duplex Capable */
#define NWAY_ER_LP_NEXT_PAGE_CAPS 0x0008 /* LP is 100TX Half Duplex Capable */
#define NWAY_ER_PAR_DETECT_FAULT 0x0100 /* LP is 100TX Full Duplex Capable */
/* Next Page TX Register */
#define NPTX_MSG_CODE_FIELD 0x0001 /* NP msg code or unformatted data */
#define NPTX_TOGGLE 0x0800 /* Toggles between exchanges
* of different NP
*/
#define NPTX_ACKNOWLDGE2 0x1000 /* 1 = will comply with msg
* 0 = cannot comply with msg
*/
#define NPTX_MSG_PAGE 0x2000 /* formatted(1)/unformatted(0) pg */
#define NPTX_NEXT_PAGE 0x8000 /* 1 = addition NP will follow
* 0 = sending last NP
*/
/* Link Partner Next Page Register */
#define LP_RNPR_MSG_CODE_FIELD 0x0001 /* NP msg code or unformatted data */
#define LP_RNPR_TOGGLE 0x0800 /* Toggles between exchanges
* of different NP
*/
#define LP_RNPR_ACKNOWLDGE2 0x1000 /* 1 = will comply with msg
* 0 = cannot comply with msg
*/
#define LP_RNPR_MSG_PAGE 0x2000 /* formatted(1)/unformatted(0) pg */
#define LP_RNPR_ACKNOWLDGE 0x4000 /* 1 = ACK / 0 = NO ACK */
#define LP_RNPR_NEXT_PAGE 0x8000 /* 1 = addition NP will follow
* 0 = sending last NP
*/
/* 1000BASE-T Control Register */
#define CR_1000T_ASYM_PAUSE 0x0080 /* Advertise asymmetric pause bit */
#define CR_1000T_HD_CAPS 0x0100 /* Advertise 1000T HD capability */
#define CR_1000T_FD_CAPS 0x0200 /* Advertise 1000T FD capability */
#define CR_1000T_REPEATER_DTE 0x0400 /* 1=Repeater/switch device port */
/* 0=DTE device */
#define CR_1000T_MS_VALUE 0x0800 /* 1=Configure PHY as Master */
/* 0=Configure PHY as Slave */
#define CR_1000T_MS_ENABLE 0x1000 /* 1=Master/Slave manual config value */
/* 0=Automatic Master/Slave config */
#define CR_1000T_TEST_MODE_NORMAL 0x0000 /* Normal Operation */
#define CR_1000T_TEST_MODE_1 0x2000 /* Transmit Waveform test */
#define CR_1000T_TEST_MODE_2 0x4000 /* Master Transmit Jitter test */
#define CR_1000T_TEST_MODE_3 0x6000 /* Slave Transmit Jitter test */
#define CR_1000T_TEST_MODE_4 0x8000 /* Transmitter Distortion test */
/* 1000BASE-T Status Register */
#define SR_1000T_IDLE_ERROR_CNT 0x00FF /* Num idle errors since last read */
#define SR_1000T_ASYM_PAUSE_DIR 0x0100 /* LP asymmetric pause direction bit */
#define SR_1000T_LP_HD_CAPS 0x0400 /* LP is 1000T HD capable */
#define SR_1000T_LP_FD_CAPS 0x0800 /* LP is 1000T FD capable */
#define SR_1000T_REMOTE_RX_STATUS 0x1000 /* Remote receiver OK */
#define SR_1000T_LOCAL_RX_STATUS 0x2000 /* Local receiver OK */
#define SR_1000T_MS_CONFIG_RES 0x4000 /* 1=Local TX is Master, 0=Slave */
#define SR_1000T_MS_CONFIG_FAULT 0x8000 /* Master/Slave config fault */
#define SR_1000T_REMOTE_RX_STATUS_SHIFT 12
#define SR_1000T_LOCAL_RX_STATUS_SHIFT 13
/* Extended Status Register */
#define IEEE_ESR_1000T_HD_CAPS 0x1000 /* 1000T HD capable */
#define IEEE_ESR_1000T_FD_CAPS 0x2000 /* 1000T FD capable */
#define IEEE_ESR_1000X_HD_CAPS 0x4000 /* 1000X HD capable */
#define IEEE_ESR_1000X_FD_CAPS 0x8000 /* 1000X FD capable */
#define PHY_TX_POLARITY_MASK 0x0100 /* register 10h bit 8 (polarity bit) */
#define PHY_TX_NORMAL_POLARITY 0 /* register 10h bit 8 (normal polarity) */
#define AUTO_POLARITY_DISABLE 0x0010 /* register 11h bit 4 */
/* (0=enable, 1=disable) */
/* M88E1000 PHY Specific Control Register */
#define M88E1000_PSCR_JABBER_DISABLE 0x0001 /* 1=Jabber Function disabled */
#define M88E1000_PSCR_POLARITY_REVERSAL 0x0002 /* 1=Polarity Reversal enabled */
#define M88E1000_PSCR_SQE_TEST 0x0004 /* 1=SQE Test enabled */
#define M88E1000_PSCR_CLK125_DISABLE 0x0010 /* 1=CLK125 low,
* 0=CLK125 toggling
*/
#define M88E1000_PSCR_MDI_MANUAL_MODE 0x0000 /* MDI Crossover Mode bits 6:5 */
/* Manual MDI configuration */
#define M88E1000_PSCR_MDIX_MANUAL_MODE 0x0020 /* Manual MDIX configuration */
#define M88E1000_PSCR_AUTO_X_1000T 0x0040 /* 1000BASE-T: Auto crossover,
* 100BASE-TX/10BASE-T:
* MDI Mode
*/
#define M88E1000_PSCR_AUTO_X_MODE 0x0060 /* Auto crossover enabled
* all speeds.
*/
#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE 0x0080
/* 1=Enable Extended 10BASE-T distance
* (Lower 10BASE-T RX Threshold)
* 0=Normal 10BASE-T RX Threshold */
#define M88E1000_PSCR_MII_5BIT_ENABLE 0x0100
/* 1=5-Bit interface in 100BASE-TX
* 0=MII interface in 100BASE-TX */
#define M88E1000_PSCR_SCRAMBLER_DISABLE 0x0200 /* 1=Scrambler disable */
#define M88E1000_PSCR_FORCE_LINK_GOOD 0x0400 /* 1=Force link good */
#define M88E1000_PSCR_ASSERT_CRS_ON_TX 0x0800 /* 1=Assert CRS on Transmit */
#define M88E1000_PSCR_POLARITY_REVERSAL_SHIFT 1
#define M88E1000_PSCR_AUTO_X_MODE_SHIFT 5
#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT 7
/* M88E1000 PHY Specific Status Register */
#define M88E1000_PSSR_JABBER 0x0001 /* 1=Jabber */
#define M88E1000_PSSR_REV_POLARITY 0x0002 /* 1=Polarity reversed */
#define M88E1000_PSSR_MDIX 0x0040 /* 1=MDIX; 0=MDI */
#define M88E1000_PSSR_CABLE_LENGTH 0x0380 /* 0=<50M;1=50-80M;2=80-110M;
* 3=110-140M;4=>140M */
#define M88E1000_PSSR_LINK 0x0400 /* 1=Link up, 0=Link down */
#define M88E1000_PSSR_SPD_DPLX_RESOLVED 0x0800 /* 1=Speed & Duplex resolved */
#define M88E1000_PSSR_PAGE_RCVD 0x1000 /* 1=Page received */
#define M88E1000_PSSR_DPLX 0x2000 /* 1=Duplex 0=Half Duplex */
#define M88E1000_PSSR_SPEED 0xC000 /* Speed, bits 14:15 */
#define M88E1000_PSSR_10MBS 0x0000 /* 00=10Mbs */
#define M88E1000_PSSR_100MBS 0x4000 /* 01=100Mbs */
#define M88E1000_PSSR_1000MBS 0x8000 /* 10=1000Mbs */
#define M88E1000_PSSR_REV_POLARITY_SHIFT 1
#define M88E1000_PSSR_MDIX_SHIFT 6
#define M88E1000_PSSR_CABLE_LENGTH_SHIFT 7
/* M88E1000 Extended PHY Specific Control Register */
#define M88E1000_EPSCR_FIBER_LOOPBACK 0x4000 /* 1=Fiber loopback */
#define M88E1000_EPSCR_DOWN_NO_IDLE 0x8000 /* 1=Lost lock detect enabled.
* Will assert lost lock and bring
* link down if idle not seen
* within 1ms in 1000BASE-T
*/
#define M88E1000_EPSCR_TX_CLK_2_5 0x0060 /* 2.5 MHz TX_CLK */
#define M88E1000_EPSCR_TX_CLK_25 0x0070 /* 25 MHz TX_CLK */
#define M88E1000_EPSCR_TX_CLK_0 0x0000 /* NO TX_CLK */
#define M88E1000_EPSCR_DOWN_NO_IDLE_SHIFT 15
/* Bit definitions for valid PHY IDs. */
#define M88E1000_12_PHY_ID 0x01410C50
#define M88E1000_14_PHY_ID 0x01410C40
#define M88E1000_I_PHY_ID 0x01410C30
/* Miscellaneous PHY bit definitions. */
#define PHY_PREAMBLE 0xFFFFFFFF
#define PHY_SOF 0x01
#define PHY_OP_READ 0x02
#define PHY_OP_WRITE 0x01
#define PHY_TURNAROUND 0x02
#define PHY_PREAMBLE_SIZE 32
#define MII_CR_SPEED_1000 0x0040
#define MII_CR_SPEED_100 0x2000
#define MII_CR_SPEED_10 0x0000
#define E1000_PHY_ADDRESS 0x01
#define PHY_AUTO_NEG_TIME 45 /* 4.5 Seconds */
#define PHY_FORCE_TIME 20 /* 2.0 Seconds */
#define PHY_REVISION_MASK 0xFFFFFFF0
#define DEVICE_SPEED_MASK 0x00000300 /* Device Ctrl Reg Speed Mask */
#define REG4_SPEED_MASK 0x01E0
#define REG9_SPEED_MASK 0x0300
#define ADVERTISE_10_HALF 0x0001
#define ADVERTISE_10_FULL 0x0002
#define ADVERTISE_100_HALF 0x0004
#define ADVERTISE_100_FULL 0x0008
#define ADVERTISE_1000_HALF 0x0010
#define ADVERTISE_1000_FULL 0x0020
#define AUTONEG_ADVERTISE_SPEED_DEFAULT 0x002F /* Everything but 1000-Half */
#endif /* _E1000_PHY_H_ */
drivers/net/e1000/e1000_proc.c 0 → 100644
View file @ 87a54bc3
/*******************************************************************************
This software program is available to you under a choice of one of two
licenses. You may choose to be licensed under either the GNU General Public
License (GPL) Version 2, June 1991, available at
http://www.fsf.org/copyleft/gpl.html, or the Intel BSD + Patent License, the
text of which follows:
Recipient has requested a license and Intel Corporation ("Intel") is willing
to grant a license for the software entitled Linux Base Driver for the
Intel(R) PRO/1000 Family of Adapters (e1000) (the "Software") being provided
by Intel Corporation. The following definitions apply to this license:
"Licensed Patents" means patent claims licensable by Intel Corporation which
are necessarily infringed by the use of sale of the Software alone or when
combined with the operating system referred to below.
"Recipient" means the party to whom Intel delivers this Software.
"Licensee" means Recipient and those third parties that receive a license to
any operating system available under the GNU Public License version 2.0 or
later.
Copyright (c) 1999 - 2002 Intel Corporation.
All rights reserved.
The license is provided to Recipient and Recipient's Licensees under the
following terms.
Redistribution and use in source and binary forms of the Software, with or
without modification, are permitted provided that the following conditions
are met:
Redistributions of source code of the Software may retain the above
copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form of the Software may reproduce the above
copyright notice, this list of conditions and the following disclaimer in
the documentation and/or materials provided with the distribution.
Neither the name of Intel Corporation nor the names of its contributors
shall be used to endorse or promote products derived from this Software
without specific prior written permission.
Intel hereby grants Recipient and Licensees a non-exclusive, worldwide,
royalty-free patent license under Licensed Patents to make, use, sell, offer
to sell, import and otherwise transfer the Software, if any, in source code
and object code form. This license shall include changes to the Software
that are error corrections or other minor changes to the Software that do
not add functionality or features when the Software is incorporated in any
version of an operating system that has been distributed under the GNU
General Public License 2.0 or later. This patent license shall apply to the
combination of the Software and any operating system licensed under the GNU
Public License version 2.0 or later if, at the time Intel provides the
Software to Recipient, such addition of the Software to the then publicly
available versions of such operating systems available under the GNU Public
License version 2.0 or later (whether in gold, beta or alpha form) causes
such combination to be covered by the Licensed Patents. The patent license
shall not apply to any other combinations which include the Software. NO
hardware per se is licensed hereunder.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MECHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR IT CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
ANY LOSS OF USE; DATA, OR PROFITS; OR BUSINESS INTERUPTION) HOWEVER CAUSED
AND ON ANY THEORY OF LIABILITY, WHETHER IN 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.
*******************************************************************************/
/*
* Proc fs support.
*
* Read-only files created by driver (if CONFIG_PROC_FS):
*
* /proc/net/PRO_LAN_Adapters/<ethx>.info
* /proc/net/PRO_LAN_Adapters/<ethx>/<attribute>
*
* where <ethx> is the system device name, i.e eth0.
* <attribute> is the driver attribute name.
*
* There is one file for each driver attribute, where the contents
* of the file is the attribute value. The ethx.info file contains
* a list of all driver attributes in one file.
*
*/
#include "e1000.h"
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
#define ADAPTERS_PROC_DIR "PRO_LAN_Adapters"
#define TAG_MAX_LENGTH 36
extern char e1000_driver_name[];
extern char e1000_driver_version[];
/*
* The list of driver proc attributes is stored in a proc_list link
* list. The list is build with proc_list_setup and is used to
* build the proc fs nodes. The private data for each node is the
* corresponding link in the link list.
*/
struct proc_list {
struct list_head list; /* link list */
char tag[TAG_MAX_LENGTH]; /* attribute name */
void *data; /* attribute data */
size_t len; /* sizeof data */
char *(*func)(void *, size_t, char *); /* format data func */
};
static int
e1000_proc_read(char *page, char **start, off_t off, int count, int *eof)
{
int len = strlen(page);
page[len++] = '\n';
if(len <= off + count)
*eof = 1;
*start = page + off;
len -= off;
if(len > count)
len = count;
if(len < 0)
len = 0;
return len;
}
static int
e1000_proc_info_read(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct list_head *proc_list_head = data, *curr;
struct proc_list *elem;
char *p = page;
char buf[64];
list_for_each(curr, proc_list_head) {
elem = list_entry(curr, struct proc_list, list);
if(strlen(elem->tag) == 0)
p += sprintf(p, "\n");
else
p += sprintf(p, "%-32s %s\n", elem->tag,
elem->func(elem->data, elem->len, buf));
}
*p = '\0';
return e1000_proc_read(page, start, off, count, eof);
}
static int
e1000_proc_single_read(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct proc_list *elem = data;
sprintf(page, "%s", elem->func(elem->data, elem->len, page));
return e1000_proc_read(page, start, off, count, eof);
}
static void __devexit
e1000_proc_dirs_free(char *name, struct list_head *proc_list_head)
{
struct proc_dir_entry *intel_proc_dir, *proc_dir;
char info_name[strlen(name) + strlen(".info")];
for(intel_proc_dir = proc_net->subdir; intel_proc_dir;
intel_proc_dir = intel_proc_dir->next) {
if((intel_proc_dir->namelen == strlen(ADAPTERS_PROC_DIR)) &&
(memcmp(intel_proc_dir->name,
ADAPTERS_PROC_DIR, strlen(ADAPTERS_PROC_DIR)) == 0))
break;
}
if(!intel_proc_dir)
return;
for(proc_dir = intel_proc_dir->subdir; proc_dir;
proc_dir = proc_dir->next) {
if ((proc_dir->namelen == strlen(name)) &&
!memcmp(proc_dir->name, name, strlen(name)))
break;
}
if(proc_dir) {
struct list_head *curr;
struct proc_list *elem;
list_for_each(curr, proc_list_head) {
elem = list_entry(curr, struct proc_list, list);
remove_proc_entry(elem->tag, proc_dir);
}
strcpy(info_name, name);
strcat(info_name, ".info");
remove_proc_entry(info_name, intel_proc_dir);
remove_proc_entry(name, intel_proc_dir);
}
/* If the intel dir is empty, remove it */
for(proc_dir = intel_proc_dir->subdir; proc_dir;
proc_dir = proc_dir->next) {
/* ignore . and .. */
if(*(proc_dir->name) == '.')
continue;
break;
}
if(!proc_dir)
remove_proc_entry(ADAPTERS_PROC_DIR, proc_net);
return;
}
static int __devinit
e1000_proc_singles_create(struct proc_dir_entry *parent,
struct list_head *proc_list_head)
{
struct list_head *curr;
struct proc_list *elem;
list_for_each(curr, proc_list_head) {
struct proc_dir_entry *proc_entry;
elem = list_entry(curr, struct proc_list, list);
if(strlen(elem->tag) == 0)
continue;
if(!(proc_entry =
create_proc_entry(elem->tag, S_IFREG, parent)))
return 0;
proc_entry->read_proc = e1000_proc_single_read;
proc_entry->data = elem;
SET_MODULE_OWNER(proc_entry);
}
return 1;
}
static int __devinit
e1000_proc_dirs_create(char *name, struct list_head *proc_list_head)
{
struct proc_dir_entry *intel_proc_dir, *proc_dir, *info_entry;
char info_name[strlen(name) + strlen(".info")];
for(intel_proc_dir = proc_net->subdir; intel_proc_dir;
intel_proc_dir = intel_proc_dir->next) {
if((intel_proc_dir->namelen == strlen(ADAPTERS_PROC_DIR)) &&
(memcmp(intel_proc_dir->name,
ADAPTERS_PROC_DIR, strlen(ADAPTERS_PROC_DIR)) == 0))
break;
}
if(!intel_proc_dir)
if(!(intel_proc_dir =
create_proc_entry(ADAPTERS_PROC_DIR,
S_IFDIR, proc_net)))
return 0;
if(!(proc_dir =
create_proc_entry(name, S_IFDIR, intel_proc_dir)))
return 0;
SET_MODULE_OWNER(proc_dir);
if(!e1000_proc_singles_create(proc_dir, proc_list_head))
return 0;
strcpy(info_name, name);
strcat(info_name, ".info");
if(!(info_entry =
create_proc_entry(info_name, S_IFREG, intel_proc_dir)))
return 0;
SET_MODULE_OWNER(info_entry);
info_entry->read_proc = e1000_proc_info_read;
info_entry->data = proc_list_head;
return 1;
}
static void __devinit
e1000_proc_list_add(struct list_head *proc_list_head, char *tag,
void *data, size_t len,
char *(*func)(void *, size_t, char *))
{
struct proc_list *new = (struct proc_list *)
kmalloc(sizeof(struct proc_list), GFP_KERNEL);
if(!new)
return;
strncpy(new->tag, tag, TAG_MAX_LENGTH);
new->data = data;
new->len = len;
new->func = func;
list_add_tail(&new->list, proc_list_head);
return;
}
static void __devexit
e1000_proc_list_free(struct list_head *proc_list_head)
{
struct proc_list *elem;
while(!list_empty(proc_list_head)) {
elem = list_entry(proc_list_head->next, struct proc_list, list);
list_del(&elem->list);
kfree(elem);
}
return;
}
/*
* General purpose formating functions
*/
static char *
e1000_proc_str(void *data, size_t len, char *buf)
{
sprintf(buf, "%s", (char *)data);
return buf;
}
static char *
e1000_proc_hex(void *data, size_t len, char *buf)
{
switch(len) {
case sizeof(uint8_t):
sprintf(buf, "0x%02x", *(uint8_t *)data);
break;
case sizeof(uint16_t):
sprintf(buf, "0x%04x", *(uint16_t *)data);
break;
case sizeof(uint32_t):
sprintf(buf, "0x%08x", *(uint32_t *)data);
break;
case sizeof(uint64_t):
sprintf(buf, "0x%08Lx", (unsigned long long)*(uint64_t *)data);
break;
}
return buf;
}
static char *
e1000_proc_unsigned(void *data, size_t len, char *buf)
{
switch(len) {
case sizeof(uint8_t):
sprintf(buf, "%u", *(uint8_t *)data);
break;
case sizeof(uint16_t):
sprintf(buf, "%u", *(uint16_t *)data);
break;
case sizeof(uint32_t):
sprintf(buf, "%u", *(uint32_t *)data);
break;
case sizeof(uint64_t):
sprintf(buf, "%Lu", (unsigned long long)*(uint64_t *)data);
break;
}
return buf;
}
/*
* Specific formating functions
*/
static char *
e1000_proc_part_number(void *data, size_t len, char *buf)
{
sprintf(buf, "%06x-%03x", *(uint32_t *)data >> 8,
*(uint32_t *)data & 0x000000FF);
return buf;
}
static char *
e1000_proc_slot(void *data, size_t len, char *buf)
{
struct e1000_adapter *adapter = data;
sprintf(buf, "%u", PCI_SLOT(adapter->pdev->devfn));
return buf;
}
static char *
e1000_proc_bus_type(void *data, size_t len, char *buf)
{
e1000_bus_type bus_type = *(e1000_bus_type *)data;
sprintf(buf,
bus_type == e1000_bus_type_pci ? "PCI" :
bus_type == e1000_bus_type_pcix ? "PCI-X" :
"UNKNOWN");
return buf;
}
static char *
e1000_proc_bus_speed(void *data, size_t len, char *buf)
{
e1000_bus_speed bus_speed = *(e1000_bus_speed *)data;
sprintf(buf,
bus_speed == e1000_bus_speed_33 ? "33MHz" :
bus_speed == e1000_bus_speed_66 ? "66MHz" :
bus_speed == e1000_bus_speed_100 ? "100MHz" :
bus_speed == e1000_bus_speed_133 ? "133MHz" :
"UNKNOWN");
return buf;
}
static char *
e1000_proc_bus_width(void *data, size_t len, char *buf)
{
e1000_bus_width bus_width = *(e1000_bus_width *)data;
sprintf(buf,
bus_width == e1000_bus_width_32 ? "32-bit" :
bus_width == e1000_bus_width_64 ? "64-bit" :
"UNKNOWN");
return buf;
}
static char *
e1000_proc_hwaddr(void *data, size_t len, char *buf)
{
unsigned char *hwaddr = data;
sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
hwaddr[0], hwaddr[1], hwaddr[2],
hwaddr[3], hwaddr[4], hwaddr[5]);
return buf;
}
static char *
e1000_proc_link(void *data, size_t len, char *buf)
{
struct e1000_adapter *adapter = data;
sprintf(buf, netif_running(adapter->netdev) ?
netif_carrier_ok(adapter->netdev) ?
"up" : "down" : "N/A");
return buf;
}
static char *
e1000_proc_link_speed(void *data, size_t len, char *buf)
{
uint16_t link_speed = *(uint16_t *)data;
sprintf(buf, link_speed ? "%u" : "N/A", link_speed);
return buf;
}
static char *
e1000_proc_link_duplex(void *data, size_t len, char *buf)
{
uint16_t link_duplex = *(uint16_t *)data;
sprintf(buf,
link_duplex == FULL_DUPLEX ? "Full" :
link_duplex == HALF_DUPLEX ? "Half" :
"N/A");
return buf;
}
static char *
e1000_proc_state(void *data, size_t len, char *buf)
{
struct e1000_adapter *adapter = data;
sprintf(buf, adapter->netdev->flags & IFF_UP ? "up" : "down");
return buf;
}
static char *
e1000_proc_media_type(void *data, size_t len, char *buf)
{
struct e1000_adapter *adapter = data;
sprintf(buf,
adapter->shared.media_type == e1000_media_type_copper ?
"Copper" : "Fiber");
return buf;
}
static char *
e1000_proc_cable_length(void *data, size_t len, char *buf)
{
struct e1000_adapter *adapter = data;
e1000_cable_length cable_length = adapter->phy_info.cable_length;
sprintf(buf, "%s%s",
cable_length == e1000_cable_length_50 ? "0-50" :
cable_length == e1000_cable_length_50_80 ? "50-80" :
cable_length == e1000_cable_length_80_110 ? "80-110" :
cable_length == e1000_cable_length_110_140 ? "110-140" :
cable_length == e1000_cable_length_140 ? "> 140" :
"Unknown",
cable_length != e1000_cable_length_undefined ?
" Meters (+/- 20 Meters)" : "");
return buf;
}
static char *
e1000_proc_extended(void *data, size_t len, char *buf)
{
struct e1000_adapter *adapter = data;
e1000_10bt_ext_dist_enable dist_enable =
adapter->phy_info.extended_10bt_distance;
sprintf(buf,
dist_enable == e1000_10bt_ext_dist_enable_normal ? "Disabled" :
dist_enable == e1000_10bt_ext_dist_enable_lower ? "Enabled" :
"Unknown");
return buf;
}
static char *
e1000_proc_cable_polarity(void *data, size_t len, char *buf)
{
struct e1000_adapter *adapter = data;
e1000_rev_polarity polarity = adapter->phy_info.cable_polarity;
sprintf(buf,
polarity == e1000_rev_polarity_normal ? "Normal" :
polarity == e1000_rev_polarity_reversed ? "Reversed" :
"Unknown");
return buf;
}
static char *
e1000_proc_polarity_correction(void *data, size_t len, char *buf)
{
struct e1000_adapter *adapter = data;
e1000_polarity_reversal correction =
adapter->phy_info.polarity_correction;
sprintf(buf,
correction == e1000_polarity_reversal_enabled ? "Disabled" :
correction == e1000_polarity_reversal_disabled ? "Enabled" :
"Undefined");
return buf;
}
static char *
e1000_proc_link_reset_enabled(void *data, size_t len, char *buf)
{
struct e1000_adapter *adapter = data;
e1000_down_no_idle link_reset = adapter->phy_info.link_reset;
sprintf(buf,
link_reset == e1000_down_no_idle_no_detect ? "Disabled" :
link_reset == e1000_down_no_idle_detect ? "Enabled" :
"Unknown");
return buf;
}
static char *
e1000_proc_mdi_x_enabled(void *data, size_t len, char *buf)
{
struct e1000_adapter *adapter = data;
e1000_auto_x_mode mdix_mode = adapter->phy_info.mdix_mode;
sprintf(buf, mdix_mode == 0 ? "MDI" : "MDI-X");
return buf;
}
static char *
e1000_proc_rx_status(void *data, size_t len, char *buf)
{
e1000_1000t_rx_status rx_status = *(e1000_1000t_rx_status *)data;
sprintf(buf,
rx_status == e1000_1000t_rx_status_not_ok ? "NOT_OK" :
rx_status == e1000_1000t_rx_status_ok ? "OK" :
"Unknown");
return buf;
}
/*
* e1000_proc_list_setup - build link list of proc praramters
* @adapter: board private structure
*
* Order matters - ethx.info entries are ordered in the order links
* are added to list.
*/
#define LIST_ADD_F(T,D,F) \
e1000_proc_list_add(proc_list_head, (T), (D), sizeof(*(D)), (F))
#define LIST_ADD_BLANK() LIST_ADD_F("", NULL, NULL)
#define LIST_ADD_S(T,D) LIST_ADD_F((T), (D), e1000_proc_str)
#define LIST_ADD_H(T,D) LIST_ADD_F((T), (D), e1000_proc_hex)
#define LIST_ADD_U(T,D) LIST_ADD_F((T), (D), e1000_proc_unsigned)
static void __devinit
e1000_proc_list_setup(struct e1000_adapter *adapter)
{
struct e1000_shared_adapter *shared = &adapter->shared;
struct list_head *proc_list_head = &adapter->proc_list_head;
INIT_LIST_HEAD(proc_list_head);
LIST_ADD_S("Description", adapter->id_string);
LIST_ADD_F("Part_Number", &adapter->part_num, e1000_proc_part_number);
LIST_ADD_S("Driver_Name", e1000_driver_name);
LIST_ADD_S("Driver_Version", e1000_driver_version);
LIST_ADD_H("PCI_Vendor", &shared->vendor_id);
LIST_ADD_H("PCI_Device_ID", &shared->device_id);
LIST_ADD_H("PCI_Subsystem_Vendor", &shared->subsystem_vendor_id);
LIST_ADD_H("PCI_Subsystem_ID", &shared->subsystem_id);
LIST_ADD_H("PCI_Revision_ID", &shared->revision_id);
LIST_ADD_U("PCI_Bus", &adapter->pdev->bus->number);
LIST_ADD_F("PCI_Slot", adapter, e1000_proc_slot);
if(adapter->shared.mac_type >= e1000_82543) {
LIST_ADD_F("PCI_Bus_Type",
&shared->bus_type, e1000_proc_bus_type);
LIST_ADD_F("PCI_Bus_Speed",
&shared->bus_speed, e1000_proc_bus_speed);
LIST_ADD_F("PCI_Bus_Width",
&shared->bus_width, e1000_proc_bus_width);
}
LIST_ADD_U("IRQ", &adapter->pdev->irq);
LIST_ADD_S("System_Device_Name", adapter->netdev->name);
LIST_ADD_F("Current_HWaddr",
adapter->netdev->dev_addr, e1000_proc_hwaddr);
LIST_ADD_F("Permanent_HWaddr",
adapter->shared.perm_mac_addr, e1000_proc_hwaddr);
LIST_ADD_BLANK();
LIST_ADD_F("Link", adapter, e1000_proc_link);
LIST_ADD_F("Speed", &adapter->link_speed, e1000_proc_link_speed);
LIST_ADD_F("Duplex", &adapter->link_duplex, e1000_proc_link_duplex);
LIST_ADD_F("State", adapter, e1000_proc_state);
LIST_ADD_BLANK();
/* Standard net device stats */
LIST_ADD_U("Rx_Packets", &adapter->net_stats.rx_packets);
LIST_ADD_U("Tx_Packets", &adapter->net_stats.tx_packets);
LIST_ADD_U("Rx_Bytes", &adapter->net_stats.rx_bytes);
LIST_ADD_U("Tx_Bytes", &adapter->net_stats.tx_bytes);
LIST_ADD_U("Rx_Errors", &adapter->net_stats.rx_errors);
LIST_ADD_U("Tx_Errors", &adapter->net_stats.tx_errors);
LIST_ADD_U("Rx_Dropped", &adapter->net_stats.rx_dropped);
LIST_ADD_U("Tx_Dropped", &adapter->net_stats.tx_dropped);
LIST_ADD_U("Multicast", &adapter->net_stats.multicast);
LIST_ADD_U("Collisions", &adapter->net_stats.collisions);
LIST_ADD_U("Rx_Length_Errors", &adapter->net_stats.rx_length_errors);
LIST_ADD_U("Rx_Over_Errors", &adapter->net_stats.rx_over_errors);
LIST_ADD_U("Rx_CRC_Errors", &adapter->net_stats.rx_crc_errors);
LIST_ADD_U("Rx_Frame_Errors", &adapter->net_stats.rx_frame_errors);
LIST_ADD_U("Rx_FIFO_Errors", &adapter->net_stats.rx_fifo_errors);
LIST_ADD_U("Rx_Missed_Errors", &adapter->net_stats.rx_missed_errors);
LIST_ADD_U("Tx_Aborted_Errors", &adapter->net_stats.tx_aborted_errors);
LIST_ADD_U("Tx_Carrier_Errors", &adapter->net_stats.tx_carrier_errors);
LIST_ADD_U("Tx_FIFO_Errors", &adapter->net_stats.tx_fifo_errors);
LIST_ADD_U("Tx_Heartbeat_Errors",
&adapter->net_stats.tx_heartbeat_errors);
LIST_ADD_U("Tx_Window_Errors", &adapter->net_stats.tx_window_errors);
/* 8254x-specific stats */
LIST_ADD_U("Tx_Abort_Late_Coll", &adapter->stats.latecol);
LIST_ADD_U("Tx_Deferred_Ok", &adapter->stats.dc);
LIST_ADD_U("Tx_Single_Coll_Ok", &adapter->stats.scc);
LIST_ADD_U("Tx_Multi_Coll_Ok", &adapter->stats.mcc);
LIST_ADD_U("Rx_Long_Length_Errors", &adapter->stats.roc);
LIST_ADD_U("Rx_Short_Length_Errors", &adapter->stats.ruc);
/* The 82542 does not have an alignment error count register */
if(adapter->shared.mac_type >= e1000_82543)
LIST_ADD_U("Rx_Align_Errors", &adapter->stats.algnerrc);
LIST_ADD_U("Rx_Flow_Control_XON", &adapter->stats.xonrxc);
LIST_ADD_U("Rx_Flow_Control_XOFF", &adapter->stats.xoffrxc);
LIST_ADD_U("Tx_Flow_Control_XON", &adapter->stats.xontxc);
LIST_ADD_U("Tx_Flow_Control_XOFF", &adapter->stats.xofftxc);
LIST_ADD_U("Rx_CSum_Offload_Good", &adapter->hw_csum_good);
LIST_ADD_U("Rx_CSum_Offload_Errors", &adapter->hw_csum_err);
LIST_ADD_BLANK();
/* Cable diags */
LIST_ADD_F("PHY_Media_Type", adapter, e1000_proc_media_type);
if(adapter->shared.media_type == e1000_media_type_copper) {
LIST_ADD_F("PHY_Cable_Length",
adapter, e1000_proc_cable_length);
LIST_ADD_F("PHY_Extended_10Base_T_Distance",
adapter, e1000_proc_extended);
LIST_ADD_F("PHY_Cable_Polarity",
adapter, e1000_proc_cable_polarity);
LIST_ADD_F("PHY_Disable_Polarity_Correction",
adapter, e1000_proc_polarity_correction);
LIST_ADD_U("PHY_Idle_Errors",
&adapter->phy_stats.idle_errors);
LIST_ADD_F("PHY_Link_Reset_Enabled",
adapter, e1000_proc_link_reset_enabled);
LIST_ADD_U("PHY_Receive_Errors",
&adapter->phy_stats.receive_errors);
LIST_ADD_F("PHY_MDI_X_Enabled",
adapter, e1000_proc_mdi_x_enabled);
LIST_ADD_F("PHY_Local_Receiver_Status",
&adapter->phy_info.local_rx,
e1000_proc_rx_status);
LIST_ADD_F("PHY_Remote_Receiver_Status",
&adapter->phy_info.remote_rx,
e1000_proc_rx_status);
}
return;
}
/*
* e1000_proc_dev_setup - create proc fs nodes and link list
* @adapter: board private structure
*/
void __devinit
e1000_proc_dev_setup(struct e1000_adapter *adapter)
{
e1000_proc_list_setup(adapter);
e1000_proc_dirs_create(adapter->netdev->name,&adapter->proc_list_head);
return;
}
/*
* e1000_proc_dev_free - free proc fs nodes and link list
* @adapter: board private structure
*/
void __devexit
e1000_proc_dev_free(struct e1000_adapter *adapter)
{
e1000_proc_dirs_free(adapter->netdev->name, &adapter->proc_list_head);
e1000_proc_list_free(&adapter->proc_list_head);
return;
}
#else /* CONFIG_PROC_FS */
void __devinit e1000_proc_dev_setup(struct e1000_adapter *adapter) {}
void __devexit e1000_proc_dev_free(struct e1000_adapter *adapter) {}
#endif /* CONFIG_PROC_FS */
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