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r8125_n.c
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// SPDX-License-Identifier: GPL-2.0-only
/*
################################################################################
#
# r8125 is the Linux device driver released for Realtek 2.5Gigabit Ethernet
# controllers with PCI-Express interface.
#
# Copyright(c) 2022 Realtek Semiconductor Corp. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, see <http://www.gnu.org/licenses/>.
#
# Author:
# Realtek NIC software team <[email protected]>
# No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan
#
################################################################################
*/
/************************************************************************************
* This product is covered by one or more of the following patents:
* US6,570,884, US6,115,776, and US6,327,625.
***********************************************************************************/
/*
* This driver is modified from r8169.c in Linux kernel 2.6.18
*/
#include <linux/module.h>
#include <linux/version.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/mii.h>
#include <linux/if_vlan.h>
#include <linux/crc32.h>
#include <linux/interrupt.h>
#include <linux/in.h>
#include <linux/ip.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
#include <linux/ipv6.h>
#include <net/ip6_checksum.h>
#endif
#include <linux/tcp.h>
#include <linux/init.h>
#include <linux/rtnetlink.h>
#include <linux/completion.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
#if LINUX_VERSION_CODE < KERNEL_VERSION(5,4,0)
#include <linux/pci-aspm.h>
#endif
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,37)
#include <linux/prefetch.h>
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
#define dev_printk(A,B,fmt,args...) printk(A fmt,##args)
#else
#include <linux/dma-mapping.h>
#include <linux/moduleparam.h>
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
#include <linux/mdio.h>
#endif
#include <asm/io.h>
#include <asm/irq.h>
#include "r8125.h"
#include "rtl_eeprom.h"
#include "rtltool.h"
#include "r8125_firmware.h"
#ifdef ENABLE_R8125_PROCFS
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#endif
#define FIRMWARE_8125A_3 "rtl_nic/rtl8125a-3.fw"
#define FIRMWARE_8125B_2 "rtl_nic/rtl8125b-2.fw"
/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
The RTL chips use a 64 element hash table based on the Ethernet CRC. */
static const int multicast_filter_limit = 32;
static const struct {
const char *name;
const char *fw_name;
} rtl_chip_fw_infos[] = {
/* PCI-E devices. */
[CFG_METHOD_2] = {"RTL8125A" },
[CFG_METHOD_3] = {"RTL8125A", FIRMWARE_8125A_3},
[CFG_METHOD_4] = {"RTL8125B", },
[CFG_METHOD_5] = {"RTL8125B", FIRMWARE_8125B_2},
[CFG_METHOD_6] = {"RTL8168KB", FIRMWARE_8125A_3},
[CFG_METHOD_7] = {"RTL8168KB", FIRMWARE_8125B_2},
[CFG_METHOD_DEFAULT] = {"Unknown", },
};
#define _R(NAME,MAC,RCR,MASK,JumFrameSz) \
{ .name = NAME, .mcfg = MAC, .RCR_Cfg = RCR, .RxConfigMask = MASK, .jumbo_frame_sz = JumFrameSz }
static const struct {
const char *name;
u8 mcfg;
u32 RCR_Cfg;
u32 RxConfigMask; /* Clears the bits supported by this chip */
u32 jumbo_frame_sz;
} rtl_chip_info[] = {
_R("RTL8125A",
CFG_METHOD_2,
BIT_30 | EnableInnerVlan | EnableOuterVlan | (RX_DMA_BURST << RxCfgDMAShift),
0xff7e5880,
Jumbo_Frame_9k),
_R("RTL8125A",
CFG_METHOD_3,
BIT_30 | EnableInnerVlan | EnableOuterVlan | (RX_DMA_BURST << RxCfgDMAShift),
0xff7e5880,
Jumbo_Frame_9k),
_R("RTL8125B",
CFG_METHOD_4,
BIT_30 | RxCfg_pause_slot_en | EnableInnerVlan | EnableOuterVlan | (RX_DMA_BURST << RxCfgDMAShift),
0xff7e5880,
Jumbo_Frame_9k),
_R("RTL8125B",
CFG_METHOD_5,
BIT_30 | RxCfg_pause_slot_en | EnableInnerVlan | EnableOuterVlan | (RX_DMA_BURST << RxCfgDMAShift),
0xff7e5880,
Jumbo_Frame_9k),
_R("RTL8168KB",
CFG_METHOD_6,
BIT_30 | EnableInnerVlan | EnableOuterVlan | (RX_DMA_BURST << RxCfgDMAShift),
0xff7e5880,
Jumbo_Frame_9k),
_R("RTL8168KB",
CFG_METHOD_7,
BIT_30 | RxCfg_pause_slot_en | EnableInnerVlan | EnableOuterVlan | (RX_DMA_BURST << RxCfgDMAShift),
0xff7e5880,
Jumbo_Frame_9k),
_R("Unknown",
CFG_METHOD_DEFAULT,
(RX_DMA_BURST << RxCfgDMAShift),
0xff7e5880,
Jumbo_Frame_1k)
};
#undef _R
#ifndef PCI_VENDOR_ID_DLINK
#define PCI_VENDOR_ID_DLINK 0x1186
#endif
static struct pci_device_id rtl8125_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8125), },
{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x8162), },
{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK, 0x3000), },
{0,},
};
MODULE_DEVICE_TABLE(pci, rtl8125_pci_tbl);
static int rx_copybreak = ETH_ZLEN;
static int use_dac = 1;
static int timer_count = 0x2600;
static int timer_count_v2 = (0x2600 / 0x100);
static struct {
u32 msg_enable;
} debug = { -1 };
static unsigned int speed_mode = SPEED_2500;
static unsigned int duplex_mode = DUPLEX_FULL;
static unsigned int autoneg_mode = AUTONEG_ENABLE;
static unsigned int advertising_mode = ADVERTISED_10baseT_Half |
ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half |
ADVERTISED_100baseT_Full |
ADVERTISED_1000baseT_Half |
ADVERTISED_1000baseT_Full |
ADVERTISED_2500baseX_Full;
#ifdef CONFIG_ASPM
static int aspm = 1;
#else
static int aspm = 0;
#endif
#ifdef ENABLE_S5WOL
static int s5wol = 1;
#else
static int s5wol = 0;
#endif
#ifdef ENABLE_S5_KEEP_CURR_MAC
static int s5_keep_curr_mac = 1;
#else
static int s5_keep_curr_mac = 0;
#endif
#ifdef ENABLE_EEE
static int eee_enable = 1;
#else
static int eee_enable = 0;
#endif
#ifdef CONFIG_SOC_LAN
static ulong hwoptimize = HW_PATCH_SOC_LAN;
#else
static ulong hwoptimize = 0;
#endif
#ifdef ENABLE_S0_MAGIC_PACKET
static int s0_magic_packet = 1;
#else
static int s0_magic_packet = 0;
#endif
#ifdef ENABLE_TX_NO_CLOSE
static int tx_no_close_enable = 1;
#else
static int tx_no_close_enable = 0;
#endif
#ifdef ENABLE_PTP_MASTER_MODE
static int enable_ptp_master_mode = 1;
#else
static int enable_ptp_master_mode = 0;
#endif
#ifdef DISABLE_PM_SUPPORT
static int disable_pm_support = 1;
#else
static int disable_pm_support = 0;
#endif
MODULE_AUTHOR("Realtek and the Linux r8125 crew <[email protected]>");
MODULE_DESCRIPTION("Realtek RTL8125 2.5Gigabit Ethernet driver");
module_param(speed_mode, uint, 0);
MODULE_PARM_DESC(speed_mode, "force phy operation. Deprecated by ethtool (8).");
module_param(duplex_mode, uint, 0);
MODULE_PARM_DESC(duplex_mode, "force phy operation. Deprecated by ethtool (8).");
module_param(autoneg_mode, uint, 0);
MODULE_PARM_DESC(autoneg_mode, "force phy operation. Deprecated by ethtool (8).");
module_param(advertising_mode, uint, 0);
MODULE_PARM_DESC(advertising_mode, "force phy operation. Deprecated by ethtool (8).");
module_param(aspm, int, 0);
MODULE_PARM_DESC(aspm, "Enable ASPM.");
module_param(s5wol, int, 0);
MODULE_PARM_DESC(s5wol, "Enable Shutdown Wake On Lan.");
module_param(s5_keep_curr_mac, int, 0);
MODULE_PARM_DESC(s5_keep_curr_mac, "Enable Shutdown Keep Current MAC Address.");
module_param(rx_copybreak, int, 0);
MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");
module_param(use_dac, int, 0);
MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");
module_param(timer_count, int, 0);
MODULE_PARM_DESC(timer_count, "Timer Interrupt Interval.");
module_param(eee_enable, int, 0);
MODULE_PARM_DESC(eee_enable, "Enable Energy Efficient Ethernet.");
module_param(hwoptimize, ulong, 0);
MODULE_PARM_DESC(hwoptimize, "Enable HW optimization function.");
module_param(s0_magic_packet, int, 0);
MODULE_PARM_DESC(s0_magic_packet, "Enable S0 Magic Packet.");
module_param(tx_no_close_enable, int, 0);
MODULE_PARM_DESC(tx_no_close_enable, "Enable TX No Close.");
module_param(enable_ptp_master_mode, int, 0);
MODULE_PARM_DESC(enable_ptp_master_mode, "Enable PTP Master Mode.");
module_param(disable_pm_support, int, 0);
MODULE_PARM_DESC(disable_pm_support, "Disable PM support.");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0)
module_param_named(debug, debug.msg_enable, int, 0);
MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");
#endif//LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0)
MODULE_LICENSE("GPL");
#ifdef ENABLE_USE_FIRMWARE_FILE
MODULE_FIRMWARE(FIRMWARE_8125A_3);
MODULE_FIRMWARE(FIRMWARE_8125B_2);
#endif
MODULE_VERSION(RTL8125_VERSION);
/*
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
static void rtl8125_esd_timer(unsigned long __opaque);
#else
static void rtl8125_esd_timer(struct timer_list *t);
#endif
*/
/*
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
static void rtl8125_link_timer(unsigned long __opaque);
#else
static void rtl8125_link_timer(struct timer_list *t);
#endif
*/
static netdev_tx_t rtl8125_start_xmit(struct sk_buff *skb, struct net_device *dev);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
static irqreturn_t rtl8125_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
#else
static irqreturn_t rtl8125_interrupt(int irq, void *dev_instance);
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
static irqreturn_t rtl8125_interrupt_msix(int irq, void *dev_instance, struct pt_regs *regs);
#else
static irqreturn_t rtl8125_interrupt_msix(int irq, void *dev_instance);
#endif
static void rtl8125_set_rx_mode(struct net_device *dev);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0)
static void rtl8125_tx_timeout(struct net_device *dev, unsigned int txqueue);
#else
static void rtl8125_tx_timeout(struct net_device *dev);
#endif
static struct net_device_stats *rtl8125_get_stats(struct net_device *dev);
static int rtl8125_rx_interrupt(struct net_device *, struct rtl8125_private *, struct rtl8125_rx_ring *, napi_budget);
static int rtl8125_tx_interrupt(struct rtl8125_tx_ring *ring, int budget);
static int rtl8125_tx_interrupt_with_vector(struct rtl8125_private *tp, const int message_id, int budget);
static void rtl8125_wait_for_quiescence(struct net_device *dev);
static int rtl8125_change_mtu(struct net_device *dev, int new_mtu);
static void rtl8125_down(struct net_device *dev);
static int rtl8125_set_mac_address(struct net_device *dev, void *p);
static void rtl8125_rar_set(struct rtl8125_private *tp, const u8 *addr);
static void rtl8125_desc_addr_fill(struct rtl8125_private *);
static void rtl8125_tx_desc_init(struct rtl8125_private *tp);
static void rtl8125_rx_desc_init(struct rtl8125_private *tp);
static u32 mdio_direct_read_phy_ocp(struct rtl8125_private *tp, u16 RegAddr);
static u16 rtl8125_get_hw_phy_mcu_code_ver(struct rtl8125_private *tp);
static void rtl8125_phy_power_up(struct net_device *dev);
static void rtl8125_phy_power_down(struct net_device *dev);
static int rtl8125_set_speed(struct net_device *dev, u8 autoneg, u32 speed, u8 duplex, u32 adv);
static bool rtl8125_set_phy_mcu_patch_request(struct rtl8125_private *tp);
static bool rtl8125_clear_phy_mcu_patch_request(struct rtl8125_private *tp);
#ifdef CONFIG_R8125_NAPI
static int rtl8125_poll(napi_ptr napi, napi_budget budget);
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
static void rtl8125_reset_task(void *_data);
static void rtl8125_esd_task(void *_data);
static void rtl8125_linkchg_task(void *_data);
#else
static void rtl8125_reset_task(struct work_struct *work);
static void rtl8125_esd_task(struct work_struct *work);
static void rtl8125_linkchg_task(struct work_struct *work);
#endif
static void rtl8125_schedule_reset_work(struct rtl8125_private *tp);
static void rtl8125_schedule_esd_work(struct rtl8125_private *tp);
static void rtl8125_schedule_linkchg_work(struct rtl8125_private *tp);
static void rtl8125_init_all_schedule_work(struct rtl8125_private *tp);
static void rtl8125_cancel_all_schedule_work(struct rtl8125_private *tp);
static inline struct device *tp_to_dev(struct rtl8125_private *tp)
{
return &tp->pci_dev->dev;
}
#if ((LINUX_VERSION_CODE < KERNEL_VERSION(4,7,0) && \
LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,00)))
void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst,
u32 legacy_u32)
{
bitmap_zero(dst, __ETHTOOL_LINK_MODE_MASK_NBITS);
dst[0] = legacy_u32;
}
bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
const unsigned long *src)
{
bool retval = true;
/* TODO: following test will soon always be true */
if (__ETHTOOL_LINK_MODE_MASK_NBITS > 32) {
__ETHTOOL_DECLARE_LINK_MODE_MASK(ext);
bitmap_zero(ext, __ETHTOOL_LINK_MODE_MASK_NBITS);
bitmap_fill(ext, 32);
bitmap_complement(ext, ext, __ETHTOOL_LINK_MODE_MASK_NBITS);
if (bitmap_intersects(ext, src,
__ETHTOOL_LINK_MODE_MASK_NBITS)) {
/* src mask goes beyond bit 31 */
retval = false;
}
}
*legacy_u32 = src[0];
return retval;
}
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0)
#ifndef LPA_1000FULL
#define LPA_1000FULL 0x0800
#endif
#ifndef LPA_1000HALF
#define LPA_1000HALF 0x0400
#endif
#endif //LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0)
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0)
static inline void eth_hw_addr_random(struct net_device *dev)
{
random_ether_addr(dev->dev_addr);
}
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
#undef ethtool_ops
#define ethtool_ops _kc_ethtool_ops
struct _kc_ethtool_ops {
int (*get_settings)(struct net_device *, struct ethtool_cmd *);
int (*set_settings)(struct net_device *, struct ethtool_cmd *);
void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *);
int (*get_regs_len)(struct net_device *);
void (*get_regs)(struct net_device *, struct ethtool_regs *, void *);
void (*get_wol)(struct net_device *, struct ethtool_wolinfo *);
int (*set_wol)(struct net_device *, struct ethtool_wolinfo *);
u32 (*get_msglevel)(struct net_device *);
void (*set_msglevel)(struct net_device *, u32);
int (*nway_reset)(struct net_device *);
u32 (*get_link)(struct net_device *);
int (*get_eeprom_len)(struct net_device *);
int (*get_eeprom)(struct net_device *, struct ethtool_eeprom *, u8 *);
int (*set_eeprom)(struct net_device *, struct ethtool_eeprom *, u8 *);
int (*get_coalesce)(struct net_device *, struct ethtool_coalesce *);
int (*set_coalesce)(struct net_device *, struct ethtool_coalesce *);
void (*get_ringparam)(struct net_device *, struct ethtool_ringparam *);
int (*set_ringparam)(struct net_device *, struct ethtool_ringparam *);
void (*get_pauseparam)(struct net_device *,
struct ethtool_pauseparam*);
int (*set_pauseparam)(struct net_device *,
struct ethtool_pauseparam*);
u32 (*get_rx_csum)(struct net_device *);
int (*set_rx_csum)(struct net_device *, u32);
u32 (*get_tx_csum)(struct net_device *);
int (*set_tx_csum)(struct net_device *, u32);
u32 (*get_sg)(struct net_device *);
int (*set_sg)(struct net_device *, u32);
u32 (*get_tso)(struct net_device *);
int (*set_tso)(struct net_device *, u32);
int (*self_test_count)(struct net_device *);
void (*self_test)(struct net_device *, struct ethtool_test *, u64 *);
void (*get_strings)(struct net_device *, u32 stringset, u8 *);
int (*phys_id)(struct net_device *, u32);
int (*get_stats_count)(struct net_device *);
void (*get_ethtool_stats)(struct net_device *, struct ethtool_stats *,
u64 *);
} *ethtool_ops = NULL;
#undef SET_ETHTOOL_OPS
#define SET_ETHTOOL_OPS(netdev, ops) (ethtool_ops = (ops))
#endif //LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)
#ifndef SET_ETHTOOL_OPS
#define SET_ETHTOOL_OPS(netdev,ops) \
( (netdev)->ethtool_ops = (ops) )
#endif //SET_ETHTOOL_OPS
#endif //LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)
//#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,5)
#ifndef netif_msg_init
#define netif_msg_init _kc_netif_msg_init
/* copied from linux kernel 2.6.20 include/linux/netdevice.h */
static inline u32 netif_msg_init(int debug_value, int default_msg_enable_bits)
{
/* use default */
if (debug_value < 0 || debug_value >= (sizeof(u32) * 8))
return default_msg_enable_bits;
if (debug_value == 0) /* no output */
return 0;
/* set low N bits */
return (1 << debug_value) - 1;
}
#endif //LINUX_VERSION_CODE < KERNEL_VERSION(2,6,5)
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22)
static inline void eth_copy_and_sum (struct sk_buff *dest,
const unsigned char *src,
int len, int base)
{
memcpy (dest->data, src, len);
}
#endif //LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22)
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7)
/* copied from linux kernel 2.6.20 /include/linux/time.h */
/* Parameters used to convert the timespec values: */
#define MSEC_PER_SEC 1000L
/* copied from linux kernel 2.6.20 /include/linux/jiffies.h */
/*
* Change timeval to jiffies, trying to avoid the
* most obvious overflows..
*
* And some not so obvious.
*
* Note that we don't want to return MAX_LONG, because
* for various timeout reasons we often end up having
* to wait "jiffies+1" in order to guarantee that we wait
* at _least_ "jiffies" - so "jiffies+1" had better still
* be positive.
*/
#define MAX_JIFFY_OFFSET ((~0UL >> 1)-1)
/*
* Convert jiffies to milliseconds and back.
*
* Avoid unnecessary multiplications/divisions in the
* two most common HZ cases:
*/
static inline unsigned int _kc_jiffies_to_msecs(const unsigned long j)
{
#if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)
return (MSEC_PER_SEC / HZ) * j;
#elif HZ > MSEC_PER_SEC && !(HZ % MSEC_PER_SEC)
return (j + (HZ / MSEC_PER_SEC) - 1)/(HZ / MSEC_PER_SEC);
#else
return (j * MSEC_PER_SEC) / HZ;
#endif
}
static inline unsigned long _kc_msecs_to_jiffies(const unsigned int m)
{
if (m > _kc_jiffies_to_msecs(MAX_JIFFY_OFFSET))
return MAX_JIFFY_OFFSET;
#if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)
return (m + (MSEC_PER_SEC / HZ) - 1) / (MSEC_PER_SEC / HZ);
#elif HZ > MSEC_PER_SEC && !(HZ % MSEC_PER_SEC)
return m * (HZ / MSEC_PER_SEC);
#else
return (m * HZ + MSEC_PER_SEC - 1) / MSEC_PER_SEC;
#endif
}
#endif //LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7)
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
/* copied from linux kernel 2.6.12.6 /include/linux/pm.h */
typedef int __bitwise pci_power_t;
/* copied from linux kernel 2.6.12.6 /include/linux/pci.h */
typedef u32 __bitwise pm_message_t;
#define PCI_D0 ((pci_power_t __force) 0)
#define PCI_D1 ((pci_power_t __force) 1)
#define PCI_D2 ((pci_power_t __force) 2)
#define PCI_D3hot ((pci_power_t __force) 3)
#define PCI_D3cold ((pci_power_t __force) 4)
#define PCI_POWER_ERROR ((pci_power_t __force) -1)
/* copied from linux kernel 2.6.12.6 /drivers/pci/pci.c */
/**
* pci_choose_state - Choose the power state of a PCI device
* @dev: PCI device to be suspended
* @state: target sleep state for the whole system. This is the value
* that is passed to suspend() function.
*
* Returns PCI power state suitable for given device and given system
* message.
*/
pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state)
{
if (!pci_find_capability(dev, PCI_CAP_ID_PM))
return PCI_D0;
switch (state) {
case 0:
return PCI_D0;
case 3:
return PCI_D3hot;
default:
printk("They asked me for state %d\n", state);
// BUG();
}
return PCI_D0;
}
#endif //LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9)
/**
* msleep_interruptible - sleep waiting for waitqueue interruptions
* @msecs: Time in milliseconds to sleep for
*/
#define msleep_interruptible _kc_msleep_interruptible
unsigned long _kc_msleep_interruptible(unsigned int msecs)
{
unsigned long timeout = _kc_msecs_to_jiffies(msecs);
while (timeout && !signal_pending(current)) {
set_current_state(TASK_INTERRUPTIBLE);
timeout = schedule_timeout(timeout);
}
return _kc_jiffies_to_msecs(timeout);
}
#endif //LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9)
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7)
/* copied from linux kernel 2.6.20 include/linux/sched.h */
#ifndef __sched
#define __sched __attribute__((__section__(".sched.text")))
#endif
/* copied from linux kernel 2.6.20 kernel/timer.c */
signed long __sched schedule_timeout_uninterruptible(signed long timeout)
{
__set_current_state(TASK_UNINTERRUPTIBLE);
return schedule_timeout(timeout);
}
/* copied from linux kernel 2.6.20 include/linux/mii.h */
#undef if_mii
#define if_mii _kc_if_mii
static inline struct mii_ioctl_data *if_mii(struct ifreq *rq)
{
return (struct mii_ioctl_data *) &rq->ifr_ifru;
}
#endif //LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7)
static u32 rtl8125_read_thermal_sensor(struct rtl8125_private *tp)
{
u16 ts_digout;
switch (tp->mcfg) {
case CFG_METHOD_4:
case CFG_METHOD_5:
case CFG_METHOD_7:
ts_digout = mdio_direct_read_phy_ocp(tp, 0xBD84);
ts_digout &= 0x3ff;
break;
default:
ts_digout = 0xffff;
break;
}
return ts_digout;
}
int rtl8125_dump_tally_counter(struct rtl8125_private *tp, dma_addr_t paddr)
{
u32 cmd;
u32 WaitCnt;
int retval = -1;
RTL_W32(tp, CounterAddrHigh, (u64)paddr >> 32);
cmd = (u64)paddr & DMA_BIT_MASK(32);
RTL_W32(tp, CounterAddrLow, cmd);
RTL_W32(tp, CounterAddrLow, cmd | CounterDump);
WaitCnt = 0;
while (RTL_R32(tp, CounterAddrLow) & CounterDump) {
udelay(10);
WaitCnt++;
if (WaitCnt > 20)
break;
}
if (WaitCnt <= 20)
retval = 0;
return retval;
}
#ifdef ENABLE_R8125_PROCFS
/****************************************************************************
* -----------------------------PROCFS STUFF-------------------------
*****************************************************************************
*/
static struct proc_dir_entry *rtl8125_proc;
static int proc_init_num = 0;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
static int proc_get_driver_variable(struct seq_file *m, void *v)
{
struct net_device *dev = m->private;
struct rtl8125_private *tp = netdev_priv(dev);
seq_puts(m, "\nDump Driver Variable\n");
rtnl_lock();
seq_puts(m, "Variable\tValue\n----------\t-----\n");
seq_printf(m, "MODULENAME\t%s\n", MODULENAME);
seq_printf(m, "driver version\t%s\n", RTL8125_VERSION);
seq_printf(m, "mcfg\t%d\n", tp->mcfg);
seq_printf(m, "chipset\t%d\n", tp->chipset);
seq_printf(m, "chipset_name\t%s\n", rtl_chip_info[tp->chipset].name);
seq_printf(m, "mtu\t%d\n", dev->mtu);
seq_printf(m, "NUM_RX_DESC\t0x%x\n", tp->rx_ring[0].num_rx_desc);
seq_printf(m, "cur_rx0\t0x%x\n", tp->rx_ring[0].cur_rx);
seq_printf(m, "dirty_rx0\t0x%x\n", tp->rx_ring[0].dirty_rx);
seq_printf(m, "cur_rx1\t0x%x\n", tp->rx_ring[1].cur_rx);
seq_printf(m, "dirty_rx1\t0x%x\n", tp->rx_ring[1].dirty_rx);
seq_printf(m, "cur_rx2\t0x%x\n", tp->rx_ring[2].cur_rx);
seq_printf(m, "dirty_rx2\t0x%x\n", tp->rx_ring[2].dirty_rx);
seq_printf(m, "cur_rx3\t0x%x\n", tp->rx_ring[3].cur_rx);
seq_printf(m, "dirty_rx3\t0x%x\n", tp->rx_ring[3].dirty_rx);
seq_printf(m, "NUM_TX_DESC\t0x%x\n", tp->tx_ring[0].num_tx_desc);
seq_printf(m, "cur_tx0\t0x%x\n", tp->tx_ring[0].cur_tx);
seq_printf(m, "dirty_tx0\t0x%x\n", tp->tx_ring[0].dirty_tx);
seq_printf(m, "cur_tx1\t0x%x\n", tp->tx_ring[1].cur_tx);
seq_printf(m, "dirty_tx1\t0x%x\n", tp->tx_ring[1].dirty_tx);
seq_printf(m, "rx_buf_sz\t0x%x\n", tp->rx_buf_sz);
seq_printf(m, "esd_flag\t0x%x\n", tp->esd_flag);
seq_printf(m, "pci_cfg_is_read\t0x%x\n", tp->pci_cfg_is_read);
seq_printf(m, "rtl8125_rx_config\t0x%x\n", tp->rtl8125_rx_config);
seq_printf(m, "cp_cmd\t0x%x\n", tp->cp_cmd);
seq_printf(m, "intr_mask\t0x%x\n", tp->intr_mask);
seq_printf(m, "timer_intr_mask\t0x%x\n", tp->timer_intr_mask);
seq_printf(m, "wol_enabled\t0x%x\n", tp->wol_enabled);
seq_printf(m, "wol_opts\t0x%x\n", tp->wol_opts);
seq_printf(m, "efuse_ver\t0x%x\n", tp->efuse_ver);
seq_printf(m, "eeprom_type\t0x%x\n", tp->eeprom_type);
seq_printf(m, "autoneg\t0x%x\n", tp->autoneg);
seq_printf(m, "duplex\t0x%x\n", tp->duplex);
seq_printf(m, "speed\t%d\n", tp->speed);
seq_printf(m, "advertising\t0x%x\n", tp->advertising);
seq_printf(m, "eeprom_len\t0x%x\n", tp->eeprom_len);
seq_printf(m, "cur_page\t0x%x\n", tp->cur_page);
seq_printf(m, "bios_setting\t0x%x\n", tp->bios_setting);
seq_printf(m, "features\t0x%x\n", tp->features);
seq_printf(m, "org_pci_offset_99\t0x%x\n", tp->org_pci_offset_99);
seq_printf(m, "org_pci_offset_180\t0x%x\n", tp->org_pci_offset_180);
seq_printf(m, "issue_offset_99_event\t0x%x\n", tp->issue_offset_99_event);
seq_printf(m, "org_pci_offset_80\t0x%x\n", tp->org_pci_offset_80);
seq_printf(m, "org_pci_offset_81\t0x%x\n", tp->org_pci_offset_81);
seq_printf(m, "use_timer_interrrupt\t0x%x\n", tp->use_timer_interrrupt);
seq_printf(m, "timer_count_v2\t0x%x\n", timer_count_v2);
seq_printf(m, "INT_MITI_V2_0_RX\t0x%x\n", RTL_R8(tp, INT_MITI_V2_0_RX));
seq_printf(m, "INT_MITI_V2_0_TX\t0x%x\n", RTL_R8(tp, INT_MITI_V2_0_TX));
seq_printf(m, "HwIcVerUnknown\t0x%x\n", tp->HwIcVerUnknown);
seq_printf(m, "NotWrRamCodeToMicroP\t0x%x\n", tp->NotWrRamCodeToMicroP);
seq_printf(m, "NotWrMcuPatchCode\t0x%x\n", tp->NotWrMcuPatchCode);
seq_printf(m, "HwHasWrRamCodeToMicroP\t0x%x\n", tp->HwHasWrRamCodeToMicroP);
seq_printf(m, "sw_ram_code_ver\t0x%x\n", tp->sw_ram_code_ver);
seq_printf(m, "hw_ram_code_ver\t0x%x\n", tp->hw_ram_code_ver);
seq_printf(m, "rtk_enable_diag\t0x%x\n", tp->rtk_enable_diag);
seq_printf(m, "ShortPacketSwChecksum\t0x%x\n", tp->ShortPacketSwChecksum);
seq_printf(m, "UseSwPaddingShortPkt\t0x%x\n", tp->UseSwPaddingShortPkt);
seq_printf(m, "RequireRduNonStopPatch\t0x%x\n", tp->RequireRduNonStopPatch);
seq_printf(m, "RequireAdcBiasPatch\t0x%x\n", tp->RequireAdcBiasPatch);
seq_printf(m, "AdcBiasPatchIoffset\t0x%x\n", tp->AdcBiasPatchIoffset);
seq_printf(m, "RequireAdjustUpsTxLinkPulseTiming\t0x%x\n", tp->RequireAdjustUpsTxLinkPulseTiming);
seq_printf(m, "SwrCnt1msIni\t0x%x\n", tp->SwrCnt1msIni);
seq_printf(m, "HwSuppNowIsOobVer\t0x%x\n", tp->HwSuppNowIsOobVer);
seq_printf(m, "HwFiberModeVer\t0x%x\n", tp->HwFiberModeVer);
seq_printf(m, "HwFiberStat\t0x%x\n", tp->HwFiberStat);
seq_printf(m, "HwSwitchMdiToFiber\t0x%x\n", tp->HwSwitchMdiToFiber);
seq_printf(m, "NicCustLedValue\t0x%x\n", tp->NicCustLedValue);
seq_printf(m, "RequiredSecLanDonglePatch\t0x%x\n", tp->RequiredSecLanDonglePatch);
seq_printf(m, "HwSuppDashVer\t0x%x\n", tp->HwSuppDashVer);
seq_printf(m, "DASH\t0x%x\n", tp->DASH);
seq_printf(m, "dash_printer_enabled\t0x%x\n", tp->dash_printer_enabled);
seq_printf(m, "HwSuppKCPOffloadVer\t0x%x\n", tp->HwSuppKCPOffloadVer);
seq_printf(m, "speed_mode\t0x%x\n", speed_mode);
seq_printf(m, "duplex_mode\t0x%x\n", duplex_mode);
seq_printf(m, "autoneg_mode\t0x%x\n", autoneg_mode);
seq_printf(m, "advertising_mode\t0x%x\n", advertising_mode);
seq_printf(m, "aspm\t0x%x\n", aspm);
seq_printf(m, "s5wol\t0x%x\n", s5wol);
seq_printf(m, "s5_keep_curr_mac\t0x%x\n", s5_keep_curr_mac);
seq_printf(m, "eee_enable\t0x%x\n", tp->eee.eee_enabled);
seq_printf(m, "hwoptimize\t0x%lx\n", hwoptimize);
seq_printf(m, "proc_init_num\t0x%x\n", proc_init_num);
seq_printf(m, "s0_magic_packet\t0x%x\n", s0_magic_packet);
seq_printf(m, "HwSuppMagicPktVer\t0x%x\n", tp->HwSuppMagicPktVer);
seq_printf(m, "HwSuppLinkChgWakeUpVer\t0x%x\n", tp->HwSuppLinkChgWakeUpVer);
seq_printf(m, "HwSuppD0SpeedUpVer\t0x%x\n", tp->HwSuppD0SpeedUpVer);
seq_printf(m, "D0SpeedUpSpeed\t0x%x\n", tp->D0SpeedUpSpeed);
seq_printf(m, "HwSuppCheckPhyDisableModeVer\t0x%x\n", tp->HwSuppCheckPhyDisableModeVer);
seq_printf(m, "HwPkgDet\t0x%x\n", tp->HwPkgDet);
seq_printf(m, "HwSuppTxNoCloseVer\t0x%x\n", tp->HwSuppTxNoCloseVer);
seq_printf(m, "EnableTxNoClose\t0x%x\n", tp->EnableTxNoClose);
seq_printf(m, "NextHwDesCloPtr0\t0x%x\n", tp->tx_ring[0].NextHwDesCloPtr);
seq_printf(m, "BeginHwDesCloPtr0\t0x%x\n", tp->tx_ring[0].BeginHwDesCloPtr);
seq_printf(m, "NextHwDesCloPtr1\t0x%x\n", tp->tx_ring[1].NextHwDesCloPtr);
seq_printf(m, "BeginHwDesCloPtr1\t0x%x\n", tp->tx_ring[1].BeginHwDesCloPtr);
seq_printf(m, "InitRxDescType\t0x%x\n", tp->InitRxDescType);
seq_printf(m, "RxDescLength\t0x%x\n", tp->RxDescLength);
seq_printf(m, "num_rx_rings\t0x%x\n", tp->num_rx_rings);
seq_printf(m, "num_tx_rings\t0x%x\n", tp->num_tx_rings);
seq_printf(m, "tot_rx_rings\t0x%x\n", rtl8125_tot_rx_rings(tp));
seq_printf(m, "tot_tx_rings\t0x%x\n", rtl8125_tot_tx_rings(tp));
seq_printf(m, "EnableRss\t0x%x\n", tp->EnableRss);
seq_printf(m, "EnablePtp\t0x%x\n", tp->EnablePtp);
seq_printf(m, "ptp_master_mode\t0x%x\n", tp->ptp_master_mode);
seq_printf(m, "min_irq_nvecs\t0x%x\n", tp->min_irq_nvecs);
seq_printf(m, "irq_nvecs\t0x%x\n", tp->irq_nvecs);
seq_printf(m, "ring_lib_enabled\t0x%x\n", tp->ring_lib_enabled);
seq_printf(m, "HwSuppIsrVer\t0x%x\n", tp->HwSuppIsrVer);
seq_printf(m, "HwCurrIsrVer\t0x%x\n", tp->HwCurrIsrVer);
#ifdef ENABLE_PTP_SUPPORT
seq_printf(m, "tx_hwtstamp_timeouts\t0x%x\n", tp->tx_hwtstamp_timeouts);
seq_printf(m, "tx_hwtstamp_skipped\t0x%x\n", tp->tx_hwtstamp_skipped);
#endif
seq_printf(m, "random_mac\t0x%x\n", tp->random_mac);
seq_printf(m, "org_mac_addr\t%pM\n", tp->org_mac_addr);
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)
seq_printf(m, "perm_addr\t%pM\n", dev->perm_addr);
#endif
seq_printf(m, "dev_addr\t%pM\n", dev->dev_addr);
rtnl_unlock();
seq_putc(m, '\n');
return 0;
}
static int proc_get_tally_counter(struct seq_file *m, void *v)
{
struct net_device *dev = m->private;
struct rtl8125_private *tp = netdev_priv(dev);
struct rtl8125_counters *counters;
dma_addr_t paddr;
seq_puts(m, "\nDump Tally Counter\n");
rtnl_lock();
counters = tp->tally_vaddr;
paddr = tp->tally_paddr;
if (!counters) {
seq_puts(m, "\nDump Tally Counter Fail\n");
goto out_unlock;
}
rtl8125_dump_tally_counter(tp, paddr);
seq_puts(m, "Statistics\tValue\n----------\t-----\n");
seq_printf(m, "tx_packets\t%lld\n", le64_to_cpu(counters->tx_packets));
seq_printf(m, "rx_packets\t%lld\n", le64_to_cpu(counters->rx_packets));
seq_printf(m, "tx_errors\t%lld\n", le64_to_cpu(counters->tx_errors));
seq_printf(m, "rx_errors\t%d\n", le32_to_cpu(counters->rx_errors));
seq_printf(m, "rx_missed\t%d\n", le16_to_cpu(counters->rx_missed));
seq_printf(m, "align_errors\t%d\n", le16_to_cpu(counters->align_errors));
seq_printf(m, "tx_one_collision\t%d\n", le32_to_cpu(counters->tx_one_collision));
seq_printf(m, "tx_multi_collision\t%d\n", le32_to_cpu(counters->tx_multi_collision));
seq_printf(m, "rx_unicast\t%lld\n", le64_to_cpu(counters->rx_unicast));
seq_printf(m, "rx_broadcast\t%lld\n", le64_to_cpu(counters->rx_broadcast));
seq_printf(m, "rx_multicast\t%d\n", le32_to_cpu(counters->rx_multicast));
seq_printf(m, "tx_aborted\t%d\n", le16_to_cpu(counters->tx_aborted));
seq_printf(m, "tx_underrun\t%d\n", le16_to_cpu(counters->tx_underrun));
seq_printf(m, "tx_octets\t%lld\n", le64_to_cpu(counters->tx_octets));
seq_printf(m, "rx_octets\t%lld\n", le64_to_cpu(counters->rx_octets));
seq_printf(m, "rx_multicast64\t%lld\n", le64_to_cpu(counters->rx_multicast64));
seq_printf(m, "tx_unicast64\t%lld\n", le64_to_cpu(counters->tx_unicast64));
seq_printf(m, "tx_broadcast64\t%lld\n", le64_to_cpu(counters->tx_broadcast64));
seq_printf(m, "tx_multicast64\t%lld\n", le64_to_cpu(counters->tx_multicast64));
seq_printf(m, "tx_pause_on\t%d\n", le32_to_cpu(counters->tx_pause_on));
seq_printf(m, "tx_pause_off\t%d\n", le32_to_cpu(counters->tx_pause_off));
seq_printf(m, "tx_pause_all\t%d\n", le32_to_cpu(counters->tx_pause_all));
seq_printf(m, "tx_deferred\t%d\n", le32_to_cpu(counters->tx_deferred));
seq_printf(m, "tx_late_collision\t%d\n", le32_to_cpu(counters->tx_late_collision));
seq_printf(m, "tx_all_collision\t%d\n", le32_to_cpu(counters->tx_all_collision));
seq_printf(m, "tx_aborted32\t%d\n", le32_to_cpu(counters->tx_aborted32));
seq_printf(m, "align_errors32\t%d\n", le32_to_cpu(counters->align_errors32));
seq_printf(m, "rx_frame_too_long\t%d\n", le32_to_cpu(counters->rx_frame_too_long));
seq_printf(m, "rx_runt\t%d\n", le32_to_cpu(counters->rx_runt));
seq_printf(m, "rx_pause_on\t%d\n", le32_to_cpu(counters->rx_pause_on));
seq_printf(m, "rx_pause_off\t%d\n", le32_to_cpu(counters->rx_pause_off));
seq_printf(m, "rx_pause_all\t%d\n", le32_to_cpu(counters->rx_pause_all));
seq_printf(m, "rx_unknown_opcode\t%d\n", le32_to_cpu(counters->rx_unknown_opcode));
seq_printf(m, "rx_mac_error\t%d\n", le32_to_cpu(counters->rx_mac_error));
seq_printf(m, "tx_underrun32\t%d\n", le32_to_cpu(counters->tx_underrun32));
seq_printf(m, "rx_mac_missed\t%d\n", le32_to_cpu(counters->rx_mac_missed));
seq_printf(m, "rx_tcam_dropped\t%d\n", le32_to_cpu(counters->rx_tcam_dropped));
seq_printf(m, "tdu\t%d\n", le32_to_cpu(counters->tdu));
seq_printf(m, "rdu\t%d\n", le32_to_cpu(counters->rdu));
seq_putc(m, '\n');
out_unlock:
rtnl_unlock();
return 0;
}
static int proc_get_registers(struct seq_file *m, void *v)
{
struct net_device *dev = m->private;
int i, n, max = R8125_MAC_REGS_SIZE;
u8 byte_rd;
struct rtl8125_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->mmio_addr;
seq_puts(m, "\nDump MAC Registers\n");
seq_puts(m, "Offset\tValue\n------\t-----\n");
rtnl_lock();
for (n = 0; n < max;) {
seq_printf(m, "\n0x%02x:\t", n);
for (i = 0; i < 16 && n < max; i++, n++) {
byte_rd = readb(ioaddr + n);
seq_printf(m, "%02x ", byte_rd);
}
}
rtnl_unlock();
seq_putc(m, '\n');
return 0;
}
static int proc_get_pcie_phy(struct seq_file *m, void *v)
{
struct net_device *dev = m->private;
int i, n, max = R8125_EPHY_REGS_SIZE/2;
u16 word_rd;
struct rtl8125_private *tp = netdev_priv(dev);
seq_puts(m, "\nDump PCIE PHY\n");
seq_puts(m, "\nOffset\tValue\n------\t-----\n ");
rtnl_lock();
for (n = 0; n < max;) {
seq_printf(m, "\n0x%02x:\t", n);
for (i = 0; i < 8 && n < max; i++, n++) {
word_rd = rtl8125_ephy_read(tp, n);
seq_printf(m, "%04x ", word_rd);
}
}
rtnl_unlock();
seq_putc(m, '\n');
return 0;
}
static int proc_get_eth_phy(struct seq_file *m, void *v)
{
struct net_device *dev = m->private;
int i, n, max = R8125_PHY_REGS_SIZE/2;
u16 word_rd;
struct rtl8125_private *tp = netdev_priv(dev);
seq_puts(m, "\nDump Ethernet PHY\n");
seq_puts(m, "\nOffset\tValue\n------\t-----\n ");
rtnl_lock();
seq_puts(m, "\n####################page 0##################\n ");
rtl8125_mdio_write(tp, 0x1f, 0x0000);
for (n = 0; n < max;) {
seq_printf(m, "\n0x%02x:\t", n);
for (i = 0; i < 8 && n < max; i++, n++) {
word_rd = rtl8125_mdio_read(tp, n);
seq_printf(m, "%04x ", word_rd);
}
}
rtnl_unlock();
seq_putc(m, '\n');
return 0;