// SPDX-License-Identifier: GPL-2.0-or-later
/*
* This code is derived from the VIA reference driver ( copyright message
* below ) provided to Red Hat by VIA Networking Technologies , Inc . for
* addition to the Linux kernel .
*
* The code has been merged into one source file , cleaned up to follow
* Linux coding style , ported to the Linux 2 . 6 kernel tree and cleaned
* for 64 bit hardware platforms .
*
* TODO
* rx_copybreak / alignment
* More testing
*
* The changes are ( c ) Copyright 2004 , Red Hat Inc . < alan @ lxorguk . ukuu . org . uk >
* Additional fixes and clean up : Francois Romieu
*
* This source has not been verified for use in safety critical systems .
*
* Please direct queries about the revamped driver to the linux - kernel
* list not VIA .
*
* Original code :
*
* Copyright ( c ) 1996 , 2003 VIA Networking Technologies , Inc .
* All rights reserved .
*
* Author : Chuang Liang - Shing , AJ Jiang
*
* Date : Jan 24 , 2003
*
* MODULE_LICENSE ( " GPL " ) ;
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/types.h>
#include <linux/bitops.h>
#include <linux/init.h>
#include <linux/dma-mapping.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/wait.h>
#include <linux/io.h>
#include <linux/if .h>
#include <linux/uaccess.h>
#include <linux/proc_fs.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/inetdevice.h>
#include <linux/platform_device.h>
#include <linux/reboot.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/in.h>
#include <linux/if_arp.h>
#include <linux/if_vlan.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <linux/crc-ccitt.h>
#include <linux/crc32.h>
#include "via-velocity.h"
enum velocity_bus_type {
BUS_PCI,
BUS_PLATFORM,
};
static int velocity_nics;
static void velocity_set_power_state(struct velocity_info *vptr, char state)
{
void *addr = vptr->mac_regs;
if (vptr->pdev)
pci_set_power_state(vptr->pdev, state);
else
writeb(state, addr + 0 x154);
}
/**
* mac_get_cam_mask - Read a CAM mask
* @ regs : register block for this velocity
* @ mask : buffer to store mask
*
* Fetch the mask bits of the selected CAM and store them into the
* provided mask buffer .
*/
static void mac_get_cam_mask(struct mac_regs __iomem *regs, u8 *mask)
{
int i;
/* Select CAM mask */
BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
writeb(0 , ®s->CAMADDR);
/* read mask */
for (i = 0 ; i < 8 ; i++)
*mask++ = readb(&(regs->MARCAM[i]));
/* disable CAMEN */
writeb(0 , ®s->CAMADDR);
/* Select mar */
BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
}
/**
* mac_set_cam_mask - Set a CAM mask
* @ regs : register block for this velocity
* @ mask : CAM mask to load
*
* Store a new mask into a CAM
*/
static void mac_set_cam_mask(struct mac_regs __iomem *regs, u8 *mask)
{
int i;
/* Select CAM mask */
BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
writeb(CAMADDR_CAMEN, ®s->CAMADDR);
for (i = 0 ; i < 8 ; i++)
writeb(*mask++, &(regs->MARCAM[i]));
/* disable CAMEN */
writeb(0 , ®s->CAMADDR);
/* Select mar */
BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
}
static void mac_set_vlan_cam_mask(struct mac_regs __iomem *regs, u8 *mask)
{
int i;
/* Select CAM mask */
BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, ®s->CAMADDR);
for (i = 0 ; i < 8 ; i++)
writeb(*mask++, &(regs->MARCAM[i]));
/* disable CAMEN */
writeb(0 , ®s->CAMADDR);
/* Select mar */
BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
}
/**
* mac_set_cam - set CAM data
* @ regs : register block of this velocity
* @ idx : Cam index
* @ addr : 2 or 6 bytes of CAM data
*
* Load an address or vlan tag into a CAM
*/
static void mac_set_cam(struct mac_regs __iomem *regs, int idx, const u8 *addr)
{
int i;
/* Select CAM mask */
BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
idx &= (64 - 1 );
writeb(CAMADDR_CAMEN | idx, ®s->CAMADDR);
for (i = 0 ; i < 6 ; i++)
writeb(*addr++, &(regs->MARCAM[i]));
BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR);
udelay(10 );
writeb(0 , ®s->CAMADDR);
/* Select mar */
BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
}
static void mac_set_vlan_cam(struct mac_regs __iomem *regs, int idx,
const u8 *addr)
{
/* Select CAM mask */
BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
idx &= (64 - 1 );
writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx, ®s->CAMADDR);
writew(*((u16 *) addr), ®s->MARCAM[0 ]);
BYTE_REG_BITS_ON(CAMCR_CAMWR, ®s->CAMCR);
udelay(10 );
writeb(0 , ®s->CAMADDR);
/* Select mar */
BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0, ®s->CAMCR);
}
/**
* mac_wol_reset - reset WOL after exiting low power
* @ regs : register block of this velocity
*
* Called after we drop out of wake on lan mode in order to
* reset the Wake on lan features . This function doesn ' t restore
* the rest of the logic from the result of sleep / wakeup
*/
static void mac_wol_reset(struct mac_regs __iomem *regs)
{
/* Turn off SWPTAG right after leaving power mode */
BYTE_REG_BITS_OFF(STICKHW_SWPTAG, ®s->STICKHW);
/* clear sticky bits */
BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, ®s->CHIPGCR);
BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
/* disable force PME-enable */
writeb(WOLCFG_PMEOVR, ®s->WOLCFGClr);
/* disable power-event config bit */
writew(0 xFFFF, ®s->WOLCRClr);
/* clear power status */
writew(0 xFFFF, ®s->WOLSRClr);
}
static const struct ethtool_ops velocity_ethtool_ops;
/*
Define module options
*/
MODULE_AUTHOR("VIA Networking Technologies, Inc." );
MODULE_LICENSE("GPL" );
MODULE_DESCRIPTION("VIA Networking Velocity Family Gigabit Ethernet Adapter Driver" );
#define VELOCITY_PARAM(N, D) \
static int N[MAX_UNITS] = OPTION_DEFAULT;\
module_param_array(N, int , NULL, 0 ); \
MODULE_PARM_DESC(N, D);
#define RX_DESC_MIN 64
#define RX_DESC_MAX 255
#define RX_DESC_DEF 64
VELOCITY_PARAM(RxDescriptors, "Number of receive descriptors" );
#define TX_DESC_MIN 16
#define TX_DESC_MAX 256
#define TX_DESC_DEF 64
VELOCITY_PARAM(TxDescriptors, "Number of transmit descriptors" );
#define RX_THRESH_MIN 0
#define RX_THRESH_MAX 3
#define RX_THRESH_DEF 0
/* rx_thresh[] is used for controlling the receive fifo threshold.
0 : indicate the rxfifo threshold is 128 bytes .
1 : indicate the rxfifo threshold is 512 bytes .
2 : indicate the rxfifo threshold is 1024 bytes .
3 : indicate the rxfifo threshold is store & forward .
*/
VELOCITY_PARAM(rx_thresh, "Receive fifo threshold" );
#define DMA_LENGTH_MIN 0
#define DMA_LENGTH_MAX 7
#define DMA_LENGTH_DEF 6
/* DMA_length[] is used for controlling the DMA length
0 : 8 DWORDs
1 : 16 DWORDs
2 : 32 DWORDs
3 : 64 DWORDs
4 : 128 DWORDs
5 : 256 DWORDs
6 : SF ( flush till emply )
7 : SF ( flush till emply )
*/
VELOCITY_PARAM(DMA_length, "DMA length" );
#define IP_ALIG_DEF 0
/* IP_byte_align[] is used for IP header DWORD byte aligned
0 : indicate the IP header won ' t be DWORD byte aligned . ( Default ) .
1 : indicate the IP header will be DWORD byte aligned .
In some environment , the IP header should be DWORD byte aligned ,
or the packet will be droped when we receive it . ( eg : IPVS )
*/
VELOCITY_PARAM(IP_byte_align, "Enable IP header dword aligned" );
#define FLOW_CNTL_DEF 1
#define FLOW_CNTL_MIN 1
#define FLOW_CNTL_MAX 5
/* flow_control[] is used for setting the flow control ability of NIC.
1 : hardware deafult - AUTO ( default ) . Use Hardware default value in ANAR .
2 : enable TX flow control .
3 : enable RX flow control .
4 : enable RX / TX flow control .
5 : disable
*/
VELOCITY_PARAM(flow_control, "Enable flow control ability" );
#define MED_LNK_DEF 0
#define MED_LNK_MIN 0
#define MED_LNK_MAX 5
/* speed_duplex[] is used for setting the speed and duplex mode of NIC.
0 : indicate autonegotiation for both speed and duplex mode
1 : indicate 100 Mbps half duplex mode
2 : indicate 100 Mbps full duplex mode
3 : indicate 10 Mbps half duplex mode
4 : indicate 10 Mbps full duplex mode
5 : indicate 1000 Mbps full duplex mode
Note :
if EEPROM have been set to the force mode , this option is ignored
by driver .
*/
VELOCITY_PARAM(speed_duplex, "Setting the speed and duplex mode" );
#define WOL_OPT_DEF 0
#define WOL_OPT_MIN 0
#define WOL_OPT_MAX 7
/* wol_opts[] is used for controlling wake on lan behavior.
0 : Wake up if recevied a magic packet . ( Default )
1 : Wake up if link status is on / off .
2 : Wake up if recevied an arp packet .
4 : Wake up if recevied any unicast packet .
Those value can be sumed up to support more than one option .
*/
VELOCITY_PARAM(wol_opts, "Wake On Lan options" );
static int rx_copybreak = 200 ;
module_param(rx_copybreak, int , 0644 );
MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames" );
/*
* Internal board variants . At the moment we have only one
*/
static struct velocity_info_tbl chip_info_table[] = {
{CHIP_TYPE_VT6110, "VIA Networking Velocity Family Gigabit Ethernet Adapter" , 1 , 0 x00FFFFFFUL},
{ }
};
/*
* Describe the PCI device identifiers that we support in this
* device driver . Used for hotplug autoloading .
*/
static const struct pci_device_id velocity_pci_id_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) },
{ }
};
MODULE_DEVICE_TABLE(pci, velocity_pci_id_table);
/*
* Describe the OF device identifiers that we support in this
* device driver . Used for devicetree nodes .
*/
static const struct of_device_id velocity_of_ids[] = {
{ .compatible = "via,velocity-vt6110" , .data = &chip_info_table[0 ] },
{ /* Sentinel */ },
};
MODULE_DEVICE_TABLE(of, velocity_of_ids);
/**
* get_chip_name - identifier to name
* @ chip_id : chip identifier
*
* Given a chip identifier return a suitable description . Returns
* a pointer a static string valid while the driver is loaded .
*/
static const char *get_chip_name(enum chip_type chip_id)
{
int i;
for (i = 0 ; chip_info_table[i].name != NULL; i++)
if (chip_info_table[i].chip_id == chip_id)
break ;
return chip_info_table[i].name;
}
/**
* velocity_set_int_opt - parser for integer options
* @ opt : pointer to option value
* @ val : value the user requested ( or - 1 for default )
* @ min : lowest value allowed
* @ max : highest value allowed
* @ def : default value
* @ name : property name
*
* Set an integer property in the module options . This function does
* all the verification and checking as well as reporting so that
* we don ' t duplicate code for each option .
*/
static void velocity_set_int_opt(int *opt, int val, int min, int max, int def,
char *name)
{
if (val == -1 )
*opt = def;
else if (val < min || val > max) {
pr_notice("the value of parameter %s is invalid, the valid range is (%d-%d)\n" ,
name, min, max);
*opt = def;
} else {
pr_info("set value of parameter %s to %d\n" , name, val);
*opt = val;
}
}
/**
* velocity_set_bool_opt - parser for boolean options
* @ opt : pointer to option value
* @ val : value the user requested ( or - 1 for default )
* @ def : default value ( yes / no )
* @ flag : numeric value to set for true .
* @ name : property name
*
* Set a boolean property in the module options . This function does
* all the verification and checking as well as reporting so that
* we don ' t duplicate code for each option .
*/
static void velocity_set_bool_opt(u32 *opt, int val, int def, u32 flag,
char *name)
{
(*opt) &= (~flag);
if (val == -1 )
*opt |= (def ? flag : 0 );
else if (val < 0 || val > 1 ) {
pr_notice("the value of parameter %s is invalid, the valid range is (%d-%d)\n" ,
name, 0 , 1 );
*opt |= (def ? flag : 0 );
} else {
pr_info("set parameter %s to %s\n" ,
name, val ? "TRUE" : "FALSE" );
*opt |= (val ? flag : 0 );
}
}
/**
* velocity_get_options - set options on device
* @ opts : option structure for the device
* @ index : index of option to use in module options array
*
* Turn the module and command options into a single structure
* for the current device
*/
static void velocity_get_options(struct velocity_opt *opts, int index)
{
velocity_set_int_opt(&opts->rx_thresh, rx_thresh[index],
RX_THRESH_MIN, RX_THRESH_MAX, RX_THRESH_DEF,
"rx_thresh" );
velocity_set_int_opt(&opts->DMA_length, DMA_length[index],
DMA_LENGTH_MIN, DMA_LENGTH_MAX, DMA_LENGTH_DEF,
"DMA_length" );
velocity_set_int_opt(&opts->numrx, RxDescriptors[index],
RX_DESC_MIN, RX_DESC_MAX, RX_DESC_DEF,
"RxDescriptors" );
velocity_set_int_opt(&opts->numtx, TxDescriptors[index],
TX_DESC_MIN, TX_DESC_MAX, TX_DESC_DEF,
"TxDescriptors" );
velocity_set_int_opt(&opts->flow_cntl, flow_control[index],
FLOW_CNTL_MIN, FLOW_CNTL_MAX, FLOW_CNTL_DEF,
"flow_control" );
velocity_set_bool_opt(&opts->flags, IP_byte_align[index],
IP_ALIG_DEF, VELOCITY_FLAGS_IP_ALIGN,
"IP_byte_align" );
velocity_set_int_opt((int *) &opts->spd_dpx, speed_duplex[index],
MED_LNK_MIN, MED_LNK_MAX, MED_LNK_DEF,
"Media link mode" );
velocity_set_int_opt(&opts->wol_opts, wol_opts[index],
WOL_OPT_MIN, WOL_OPT_MAX, WOL_OPT_DEF,
"Wake On Lan options" );
opts->numrx = (opts->numrx & ~3 );
}
/**
* velocity_init_cam_filter - initialise CAM
* @ vptr : velocity to program
*
* Initialize the content addressable memory used for filters . Load
* appropriately according to the presence of VLAN
*/
static void velocity_init_cam_filter(struct velocity_info *vptr)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
unsigned int vid, i = 0 ;
/* Turn on MCFG_PQEN, turn off MCFG_RTGOPT */
WORD_REG_BITS_SET(MCFG_PQEN, MCFG_RTGOPT, ®s->MCFG);
WORD_REG_BITS_ON(MCFG_VIDFR, ®s->MCFG);
/* Disable all CAMs */
memset(vptr->vCAMmask, 0 , sizeof (u8) * 8 );
memset(vptr->mCAMmask, 0 , sizeof (u8) * 8 );
mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
mac_set_cam_mask(regs, vptr->mCAMmask);
/* Enable VCAMs */
for_each_set_bit(vid, vptr->active_vlans, VLAN_N_VID) {
mac_set_vlan_cam(regs, i, (u8 *) &vid);
vptr->vCAMmask[i / 8 ] |= 0 x1 << (i % 8 );
if (++i >= VCAM_SIZE)
break ;
}
mac_set_vlan_cam_mask(regs, vptr->vCAMmask);
}
static int velocity_vlan_rx_add_vid(struct net_device *dev,
__be16 proto, u16 vid)
{
struct velocity_info *vptr = netdev_priv(dev);
spin_lock_irq(&vptr->lock);
set_bit(vid, vptr->active_vlans);
velocity_init_cam_filter(vptr);
spin_unlock_irq(&vptr->lock);
return 0 ;
}
static int velocity_vlan_rx_kill_vid(struct net_device *dev,
__be16 proto, u16 vid)
{
struct velocity_info *vptr = netdev_priv(dev);
spin_lock_irq(&vptr->lock);
clear_bit(vid, vptr->active_vlans);
velocity_init_cam_filter(vptr);
spin_unlock_irq(&vptr->lock);
return 0 ;
}
static void velocity_init_rx_ring_indexes(struct velocity_info *vptr)
{
vptr->rx.dirty = vptr->rx.filled = vptr->rx.curr = 0 ;
}
/**
* velocity_rx_reset - handle a receive reset
* @ vptr : velocity we are resetting
*
* Reset the ownership and status for the receive ring side .
* Hand all the receive queue to the NIC .
*/
static void velocity_rx_reset(struct velocity_info *vptr)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
int i;
velocity_init_rx_ring_indexes(vptr);
/*
* Init state , all RD entries belong to the NIC
*/
for (i = 0 ; i < vptr->options.numrx; ++i)
vptr->rx.ring[i].rdesc0.len |= OWNED_BY_NIC;
writew(vptr->options.numrx, ®s->RBRDU);
writel(vptr->rx.pool_dma, ®s->RDBaseLo);
writew(0 , ®s->RDIdx);
writew(vptr->options.numrx - 1 , ®s->RDCSize);
}
/**
* velocity_get_opt_media_mode - get media selection
* @ vptr : velocity adapter
*
* Get the media mode stored in EEPROM or module options and load
* mii_status accordingly . The requested link state information
* is also returned .
*/
static u32 velocity_get_opt_media_mode(struct velocity_info *vptr)
{
u32 status = 0 ;
switch (vptr->options.spd_dpx) {
case SPD_DPX_AUTO:
status = VELOCITY_AUTONEG_ENABLE;
break ;
case SPD_DPX_100_FULL:
status = VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL;
break ;
case SPD_DPX_10_FULL:
status = VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL;
break ;
case SPD_DPX_100_HALF:
status = VELOCITY_SPEED_100;
break ;
case SPD_DPX_10_HALF:
status = VELOCITY_SPEED_10;
break ;
case SPD_DPX_1000_FULL:
status = VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
break ;
}
vptr->mii_status = status;
return status;
}
/**
* safe_disable_mii_autopoll - autopoll off
* @ regs : velocity registers
*
* Turn off the autopoll and wait for it to disable on the chip
*/
static void safe_disable_mii_autopoll(struct mac_regs __iomem *regs)
{
u16 ww;
/* turn off MAUTO */
writeb(0 , ®s->MIICR);
for (ww = 0 ; ww < W_MAX_TIMEOUT; ww++) {
udelay(1 );
if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
break ;
}
}
/**
* enable_mii_autopoll - turn on autopolling
* @ regs : velocity registers
*
* Enable the MII link status autopoll feature on the Velocity
* hardware . Wait for it to enable .
*/
static void enable_mii_autopoll(struct mac_regs __iomem *regs)
{
int ii;
writeb(0 , &(regs->MIICR));
writeb(MIIADR_SWMPL, ®s->MIIADR);
for (ii = 0 ; ii < W_MAX_TIMEOUT; ii++) {
udelay(1 );
if (BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
break ;
}
writeb(MIICR_MAUTO, ®s->MIICR);
for (ii = 0 ; ii < W_MAX_TIMEOUT; ii++) {
udelay(1 );
if (!BYTE_REG_BITS_IS_ON(MIISR_MIDLE, ®s->MIISR))
break ;
}
}
/**
* velocity_mii_read - read MII data
* @ regs : velocity registers
* @ index : MII register index
* @ data : buffer for received data
*
* Perform a single read of an MII 16 bit register . Returns zero
* on success or - ETIMEDOUT if the PHY did not respond .
*/
static int velocity_mii_read(struct mac_regs __iomem *regs, u8 index, u16 *data)
{
u16 ww;
/*
* Disable MIICR_MAUTO , so that mii addr can be set normally
*/
safe_disable_mii_autopoll(regs);
writeb(index, ®s->MIIADR);
BYTE_REG_BITS_ON(MIICR_RCMD, ®s->MIICR);
for (ww = 0 ; ww < W_MAX_TIMEOUT; ww++) {
if (!(readb(®s->MIICR) & MIICR_RCMD))
break ;
}
*data = readw(®s->MIIDATA);
enable_mii_autopoll(regs);
if (ww == W_MAX_TIMEOUT)
return -ETIMEDOUT;
return 0 ;
}
/**
* mii_check_media_mode - check media state
* @ regs : velocity registers
*
* Check the current MII status and determine the link status
* accordingly
*/
static u32 mii_check_media_mode(struct mac_regs __iomem *regs)
{
u32 status = 0 ;
u16 ANAR;
if (!MII_REG_BITS_IS_ON(BMSR_LSTATUS, MII_BMSR, regs))
status |= VELOCITY_LINK_FAIL;
if (MII_REG_BITS_IS_ON(ADVERTISE_1000FULL, MII_CTRL1000, regs))
status |= VELOCITY_SPEED_1000 | VELOCITY_DUPLEX_FULL;
else if (MII_REG_BITS_IS_ON(ADVERTISE_1000HALF, MII_CTRL1000, regs))
status |= (VELOCITY_SPEED_1000);
else {
velocity_mii_read(regs, MII_ADVERTISE, &ANAR);
if (ANAR & ADVERTISE_100FULL)
status |= (VELOCITY_SPEED_100 | VELOCITY_DUPLEX_FULL);
else if (ANAR & ADVERTISE_100HALF)
status |= VELOCITY_SPEED_100;
else if (ANAR & ADVERTISE_10FULL)
status |= (VELOCITY_SPEED_10 | VELOCITY_DUPLEX_FULL);
else
status |= (VELOCITY_SPEED_10);
}
if (MII_REG_BITS_IS_ON(BMCR_ANENABLE, MII_BMCR, regs)) {
velocity_mii_read(regs, MII_ADVERTISE, &ANAR);
if ((ANAR & (ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF))
== (ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF)) {
if (MII_REG_BITS_IS_ON(ADVERTISE_1000HALF | ADVERTISE_1000FULL, MII_CTRL1000, regs))
status |= VELOCITY_AUTONEG_ENABLE;
}
}
return status;
}
/**
* velocity_mii_write - write MII data
* @ regs : velocity registers
* @ mii_addr : MII register index
* @ data : 16 bit data for the MII register
*
* Perform a single write to an MII 16 bit register . Returns zero
* on success or - ETIMEDOUT if the PHY did not respond .
*/
static int velocity_mii_write(struct mac_regs __iomem *regs, u8 mii_addr, u16 data)
{
u16 ww;
/*
* Disable MIICR_MAUTO , so that mii addr can be set normally
*/
safe_disable_mii_autopoll(regs);
/* MII reg offset */
writeb(mii_addr, ®s->MIIADR);
/* set MII data */
writew(data, ®s->MIIDATA);
/* turn on MIICR_WCMD */
BYTE_REG_BITS_ON(MIICR_WCMD, ®s->MIICR);
/* W_MAX_TIMEOUT is the timeout period */
for (ww = 0 ; ww < W_MAX_TIMEOUT; ww++) {
udelay(5 );
if (!(readb(®s->MIICR) & MIICR_WCMD))
break ;
}
enable_mii_autopoll(regs);
if (ww == W_MAX_TIMEOUT)
return -ETIMEDOUT;
return 0 ;
}
/**
* set_mii_flow_control - flow control setup
* @ vptr : velocity interface
*
* Set up the flow control on this interface according to
* the supplied user / eeprom options .
*/
static void set_mii_flow_control(struct velocity_info *vptr)
{
/*Enable or Disable PAUSE in ANAR */
switch (vptr->options.flow_cntl) {
case FLOW_CNTL_TX:
MII_REG_BITS_OFF(ADVERTISE_PAUSE_CAP, MII_ADVERTISE, vptr->mac_regs);
MII_REG_BITS_ON(ADVERTISE_PAUSE_ASYM, MII_ADVERTISE, vptr->mac_regs);
break ;
case FLOW_CNTL_RX:
MII_REG_BITS_ON(ADVERTISE_PAUSE_CAP, MII_ADVERTISE, vptr->mac_regs);
MII_REG_BITS_ON(ADVERTISE_PAUSE_ASYM, MII_ADVERTISE, vptr->mac_regs);
break ;
case FLOW_CNTL_TX_RX:
MII_REG_BITS_ON(ADVERTISE_PAUSE_CAP, MII_ADVERTISE, vptr->mac_regs);
MII_REG_BITS_OFF(ADVERTISE_PAUSE_ASYM, MII_ADVERTISE, vptr->mac_regs);
break ;
case FLOW_CNTL_DISABLE:
MII_REG_BITS_OFF(ADVERTISE_PAUSE_CAP, MII_ADVERTISE, vptr->mac_regs);
MII_REG_BITS_OFF(ADVERTISE_PAUSE_ASYM, MII_ADVERTISE, vptr->mac_regs);
break ;
default :
break ;
}
}
/**
* mii_set_auto_on - autonegotiate on
* @ vptr : velocity
*
* Enable autonegotation on this interface
*/
static void mii_set_auto_on(struct velocity_info *vptr)
{
if (MII_REG_BITS_IS_ON(BMCR_ANENABLE, MII_BMCR, vptr->mac_regs))
MII_REG_BITS_ON(BMCR_ANRESTART, MII_BMCR, vptr->mac_regs);
else
MII_REG_BITS_ON(BMCR_ANENABLE, MII_BMCR, vptr->mac_regs);
}
static u32 check_connection_type(struct mac_regs __iomem *regs)
{
u32 status = 0 ;
u8 PHYSR0;
u16 ANAR;
PHYSR0 = readb(®s->PHYSR0);
/*
if ( ! ( PHYSR0 & PHYSR0_LINKGD ) )
status | = VELOCITY_LINK_FAIL ;
*/
if (PHYSR0 & PHYSR0_FDPX)
status |= VELOCITY_DUPLEX_FULL;
if (PHYSR0 & PHYSR0_SPDG)
status |= VELOCITY_SPEED_1000;
else if (PHYSR0 & PHYSR0_SPD10)
status |= VELOCITY_SPEED_10;
else
status |= VELOCITY_SPEED_100;
if (MII_REG_BITS_IS_ON(BMCR_ANENABLE, MII_BMCR, regs)) {
velocity_mii_read(regs, MII_ADVERTISE, &ANAR);
if ((ANAR & (ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF))
== (ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF)) {
if (MII_REG_BITS_IS_ON(ADVERTISE_1000HALF | ADVERTISE_1000FULL, MII_CTRL1000, regs))
status |= VELOCITY_AUTONEG_ENABLE;
}
}
return status;
}
/**
* velocity_set_media_mode - set media mode
* @ vptr : velocity adapter
* @ mii_status : old MII link state
*
* Check the media link state and configure the flow control
* PHY and also velocity hardware setup accordingly . In particular
* we need to set up CD polling and frame bursting .
*/
static int velocity_set_media_mode(struct velocity_info *vptr, u32 mii_status)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
vptr->mii_status = mii_check_media_mode(vptr->mac_regs);
/* Set mii link status */
set_mii_flow_control(vptr);
if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
MII_REG_BITS_ON(AUXCR_MDPPS, MII_NCONFIG, vptr->mac_regs);
/*
* If connection type is AUTO
*/
if (mii_status & VELOCITY_AUTONEG_ENABLE) {
netdev_info(vptr->netdev, "Velocity is in AUTO mode\n" );
/* clear force MAC mode bit */
BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, ®s->CHIPGCR);
/* set duplex mode of MAC according to duplex mode of MII */
MII_REG_BITS_ON(ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF, MII_ADVERTISE, vptr->mac_regs);
MII_REG_BITS_ON(ADVERTISE_1000FULL | ADVERTISE_1000HALF, MII_CTRL1000, vptr->mac_regs);
MII_REG_BITS_ON(BMCR_SPEED1000, MII_BMCR, vptr->mac_regs);
/* enable AUTO-NEGO mode */
mii_set_auto_on(vptr);
} else {
u16 CTRL1000;
u16 ANAR;
u8 CHIPGCR;
/*
* 1 . if it ' s 3119 , disable frame bursting in halfduplex mode
* and enable it in fullduplex mode
* 2 . set correct MII / GMII and half / full duplex mode in CHIPGCR
* 3 . only enable CD heart beat counter in 10 HD mode
*/
/* set force MAC mode bit */
BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
CHIPGCR = readb(®s->CHIPGCR);
if (mii_status & VELOCITY_SPEED_1000)
CHIPGCR |= CHIPGCR_FCGMII;
else
CHIPGCR &= ~CHIPGCR_FCGMII;
if (mii_status & VELOCITY_DUPLEX_FULL) {
CHIPGCR |= CHIPGCR_FCFDX;
writeb(CHIPGCR, ®s->CHIPGCR);
netdev_info(vptr->netdev,
"set Velocity to forced full mode\n" );
if (vptr->rev_id < REV_ID_VT3216_A0)
BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
} else {
CHIPGCR &= ~CHIPGCR_FCFDX;
netdev_info(vptr->netdev,
"set Velocity to forced half mode\n" );
writeb(CHIPGCR, ®s->CHIPGCR);
if (vptr->rev_id < REV_ID_VT3216_A0)
BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
}
velocity_mii_read(vptr->mac_regs, MII_CTRL1000, &CTRL1000);
CTRL1000 &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
if ((mii_status & VELOCITY_SPEED_1000) &&
(mii_status & VELOCITY_DUPLEX_FULL)) {
CTRL1000 |= ADVERTISE_1000FULL;
}
velocity_mii_write(vptr->mac_regs, MII_CTRL1000, CTRL1000);
if (!(mii_status & VELOCITY_DUPLEX_FULL) && (mii_status & VELOCITY_SPEED_10))
BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
else
BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
/* MII_REG_BITS_OFF(BMCR_SPEED1000, MII_BMCR, vptr->mac_regs); */
velocity_mii_read(vptr->mac_regs, MII_ADVERTISE, &ANAR);
ANAR &= (~(ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF));
if (mii_status & VELOCITY_SPEED_100) {
if (mii_status & VELOCITY_DUPLEX_FULL)
ANAR |= ADVERTISE_100FULL;
else
ANAR |= ADVERTISE_100HALF;
} else if (mii_status & VELOCITY_SPEED_10) {
if (mii_status & VELOCITY_DUPLEX_FULL)
ANAR |= ADVERTISE_10FULL;
else
ANAR |= ADVERTISE_10HALF;
}
velocity_mii_write(vptr->mac_regs, MII_ADVERTISE, ANAR);
/* enable AUTO-NEGO mode */
mii_set_auto_on(vptr);
/* MII_REG_BITS_ON(BMCR_ANENABLE, MII_BMCR, vptr->mac_regs); */
}
/* vptr->mii_status=mii_check_media_mode(vptr->mac_regs); */
/* vptr->mii_status=check_connection_type(vptr->mac_regs); */
return VELOCITY_LINK_CHANGE;
}
/**
* velocity_print_link_status - link status reporting
* @ vptr : velocity to report on
*
* Turn the link status of the velocity card into a kernel log
* description of the new link state , detailing speed and duplex
* status
*/
static void velocity_print_link_status(struct velocity_info *vptr)
{
const char *link;
const char *speed;
const char *duplex;
if (vptr->mii_status & VELOCITY_LINK_FAIL) {
netdev_notice(vptr->netdev, "failed to detect cable link\n" );
return ;
}
if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
link = "auto-negotiation" ;
if (vptr->mii_status & VELOCITY_SPEED_1000)
speed = "1000" ;
else if (vptr->mii_status & VELOCITY_SPEED_100)
speed = "100" ;
else
speed = "10" ;
if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
duplex = "full" ;
else
duplex = "half" ;
} else {
link = "forced" ;
switch (vptr->options.spd_dpx) {
case SPD_DPX_1000_FULL:
speed = "1000" ;
duplex = "full" ;
break ;
case SPD_DPX_100_HALF:
speed = "100" ;
duplex = "half" ;
break ;
case SPD_DPX_100_FULL:
speed = "100" ;
duplex = "full" ;
break ;
case SPD_DPX_10_HALF:
speed = "10" ;
duplex = "half" ;
break ;
case SPD_DPX_10_FULL:
speed = "10" ;
duplex = "full" ;
break ;
default :
speed = "unknown" ;
duplex = "unknown" ;
break ;
}
}
netdev_notice(vptr->netdev, "Link %s speed %sM bps %s duplex\n" ,
link, speed, duplex);
}
/**
* enable_flow_control_ability - flow control
* @ vptr : veloity to configure
*
* Set up flow control according to the flow control options
* determined by the eeprom / configuration .
*/
static void enable_flow_control_ability(struct velocity_info *vptr)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
switch (vptr->options.flow_cntl) {
case FLOW_CNTL_DEFAULT:
if (BYTE_REG_BITS_IS_ON(PHYSR0_RXFLC, ®s->PHYSR0))
writel(CR0_FDXRFCEN, ®s->CR0Set);
else
writel(CR0_FDXRFCEN, ®s->CR0Clr);
if (BYTE_REG_BITS_IS_ON(PHYSR0_TXFLC, ®s->PHYSR0))
writel(CR0_FDXTFCEN, ®s->CR0Set);
else
writel(CR0_FDXTFCEN, ®s->CR0Clr);
break ;
case FLOW_CNTL_TX:
writel(CR0_FDXTFCEN, ®s->CR0Set);
writel(CR0_FDXRFCEN, ®s->CR0Clr);
break ;
case FLOW_CNTL_RX:
writel(CR0_FDXRFCEN, ®s->CR0Set);
writel(CR0_FDXTFCEN, ®s->CR0Clr);
break ;
case FLOW_CNTL_TX_RX:
writel(CR0_FDXTFCEN, ®s->CR0Set);
writel(CR0_FDXRFCEN, ®s->CR0Set);
break ;
case FLOW_CNTL_DISABLE:
writel(CR0_FDXRFCEN, ®s->CR0Clr);
writel(CR0_FDXTFCEN, ®s->CR0Clr);
break ;
default :
break ;
}
}
/**
* velocity_soft_reset - soft reset
* @ vptr : velocity to reset
*
* Kick off a soft reset of the velocity adapter and then poll
* until the reset sequence has completed before returning .
*/
static int velocity_soft_reset(struct velocity_info *vptr)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
int i = 0 ;
writel(CR0_SFRST, ®s->CR0Set);
for (i = 0 ; i < W_MAX_TIMEOUT; i++) {
udelay(5 );
if (!DWORD_REG_BITS_IS_ON(CR0_SFRST, ®s->CR0Set))
break ;
}
if (i == W_MAX_TIMEOUT) {
writel(CR0_FORSRST, ®s->CR0Set);
/* FIXME: PCI POSTING */
/* delay 2ms */
mdelay(2 );
}
return 0 ;
}
/**
* velocity_set_multi - filter list change callback
* @ dev : network device
*
* Called by the network layer when the filter lists need to change
* for a velocity adapter . Reload the CAMs with the new address
* filter ruleset .
*/
static void velocity_set_multi(struct net_device *dev)
{
struct velocity_info *vptr = netdev_priv(dev);
struct mac_regs __iomem *regs = vptr->mac_regs;
u8 rx_mode;
int i;
struct netdev_hw_addr *ha;
if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
writel(0 xffffffff, ®s->MARCAM[0 ]);
writel(0 xffffffff, ®s->MARCAM[4 ]);
rx_mode = (RCR_AM | RCR_AB | RCR_PROM);
} else if ((netdev_mc_count(dev) > vptr->multicast_limit) ||
(dev->flags & IFF_ALLMULTI)) {
writel(0 xffffffff, ®s->MARCAM[0 ]);
writel(0 xffffffff, ®s->MARCAM[4 ]);
rx_mode = (RCR_AM | RCR_AB);
} else {
int offset = MCAM_SIZE - vptr->multicast_limit;
mac_get_cam_mask(regs, vptr->mCAMmask);
i = 0 ;
netdev_for_each_mc_addr(ha, dev) {
mac_set_cam(regs, i + offset, ha->addr);
vptr->mCAMmask[(offset + i) / 8 ] |= 1 << ((offset + i) & 7 );
i++;
}
mac_set_cam_mask(regs, vptr->mCAMmask);
rx_mode = RCR_AM | RCR_AB | RCR_AP;
}
if (dev->mtu > 1500 )
rx_mode |= RCR_AL;
BYTE_REG_BITS_ON(rx_mode, ®s->RCR);
}
/*
* MII access , media link mode setting functions
*/
/**
* mii_init - set up MII
* @ vptr : velocity adapter
* @ mii_status : links tatus
*
* Set up the PHY for the current link state .
*/
static void mii_init(struct velocity_info *vptr, u32 mii_status)
{
u16 BMCR;
switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
case PHYID_ICPLUS_IP101A:
MII_REG_BITS_ON((ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP),
MII_ADVERTISE, vptr->mac_regs);
if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
MII_REG_BITS_ON(TCSR_ECHODIS, MII_SREVISION,
vptr->mac_regs);
else
MII_REG_BITS_OFF(TCSR_ECHODIS, MII_SREVISION,
vptr->mac_regs);
MII_REG_BITS_ON(PLED_LALBE, MII_TPISTATUS, vptr->mac_regs);
break ;
case PHYID_CICADA_CS8201:
/*
* Reset to hardware default
*/
MII_REG_BITS_OFF((ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP), MII_ADVERTISE, vptr->mac_regs);
/*
* Turn on ECHODIS bit in NWay - forced full mode and turn it
* off it in NWay - forced half mode for NWay - forced v . s .
* legacy - forced issue .
*/
if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
MII_REG_BITS_ON(TCSR_ECHODIS, MII_SREVISION, vptr->mac_regs);
else
MII_REG_BITS_OFF(TCSR_ECHODIS, MII_SREVISION, vptr->mac_regs);
/*
* Turn on Link / Activity LED enable bit for CIS8201
*/
MII_REG_BITS_ON(PLED_LALBE, MII_TPISTATUS, vptr->mac_regs);
break ;
case PHYID_VT3216_32BIT:
case PHYID_VT3216_64BIT:
/*
* Reset to hardware default
*/
MII_REG_BITS_ON((ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP), MII_ADVERTISE, vptr->mac_regs);
/*
* Turn on ECHODIS bit in NWay - forced full mode and turn it
* off it in NWay - forced half mode for NWay - forced v . s .
* legacy - forced issue
*/
if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
MII_REG_BITS_ON(TCSR_ECHODIS, MII_SREVISION, vptr->mac_regs);
else
MII_REG_BITS_OFF(TCSR_ECHODIS, MII_SREVISION, vptr->mac_regs);
break ;
case PHYID_MARVELL_1000:
case PHYID_MARVELL_1000S:
/*
* Assert CRS on Transmit
*/
MII_REG_BITS_ON(PSCR_ACRSTX, MII_REG_PSCR, vptr->mac_regs);
/*
* Reset to hardware default
*/
MII_REG_BITS_ON((ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP), MII_ADVERTISE, vptr->mac_regs);
break ;
default :
;
}
velocity_mii_read(vptr->mac_regs, MII_BMCR, &BMCR);
if (BMCR & BMCR_ISOLATE) {
BMCR &= ~BMCR_ISOLATE;
velocity_mii_write(vptr->mac_regs, MII_BMCR, BMCR);
}
}
/**
* setup_queue_timers - Setup interrupt timers
* @ vptr : velocity adapter
*
* Setup interrupt frequency during suppression ( timeout if the frame
* count isn ' t filled ) .
*/
static void setup_queue_timers(struct velocity_info *vptr)
{
/* Only for newer revisions */
if (vptr->rev_id >= REV_ID_VT3216_A0) {
u8 txqueue_timer = 0 ;
u8 rxqueue_timer = 0 ;
if (vptr->mii_status & (VELOCITY_SPEED_1000 |
VELOCITY_SPEED_100)) {
txqueue_timer = vptr->options.txqueue_timer;
rxqueue_timer = vptr->options.rxqueue_timer;
}
writeb(txqueue_timer, &vptr->mac_regs->TQETMR);
writeb(rxqueue_timer, &vptr->mac_regs->RQETMR);
}
}
/**
* setup_adaptive_interrupts - Setup interrupt suppression
* @ vptr : velocity adapter
*
* The velocity is able to suppress interrupt during high interrupt load .
* This function turns on that feature .
*/
static void setup_adaptive_interrupts(struct velocity_info *vptr)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
u16 tx_intsup = vptr->options.tx_intsup;
u16 rx_intsup = vptr->options.rx_intsup;
/* Setup default interrupt mask (will be changed below) */
vptr->int_mask = INT_MASK_DEF;
/* Set Tx Interrupt Suppression Threshold */
writeb(CAMCR_PS0, ®s->CAMCR);
if (tx_intsup != 0 ) {
vptr->int_mask &= ~(ISR_PTXI | ISR_PTX0I | ISR_PTX1I |
ISR_PTX2I | ISR_PTX3I);
writew(tx_intsup, ®s->ISRCTL);
} else
writew(ISRCTL_TSUPDIS, ®s->ISRCTL);
/* Set Rx Interrupt Suppression Threshold */
writeb(CAMCR_PS1, ®s->CAMCR);
if (rx_intsup != 0 ) {
vptr->int_mask &= ~ISR_PRXI;
writew(rx_intsup, ®s->ISRCTL);
} else
writew(ISRCTL_RSUPDIS, ®s->ISRCTL);
/* Select page to interrupt hold timer */
writeb(0 , ®s->CAMCR);
}
/**
* velocity_init_registers - initialise MAC registers
* @ vptr : velocity to init
* @ type : type of initialisation ( hot or cold )
*
* Initialise the MAC on a reset or on first set up on the
* hardware .
*/
static void velocity_init_registers(struct velocity_info *vptr,
enum velocity_init_type type)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
struct net_device *netdev = vptr->netdev;
int i, mii_status;
mac_wol_reset(regs);
switch (type) {
case VELOCITY_INIT_RESET:
case VELOCITY_INIT_WOL:
netif_stop_queue(netdev);
/*
* Reset RX to prevent RX pointer not on the 4 X location
*/
velocity_rx_reset(vptr);
mac_rx_queue_run(regs);
mac_rx_queue_wake(regs);
mii_status = velocity_get_opt_media_mode(vptr);
if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
velocity_print_link_status(vptr);
if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
netif_wake_queue(netdev);
}
enable_flow_control_ability(vptr);
mac_clear_isr(regs);
writel(CR0_STOP, ®s->CR0Clr);
writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT),
®s->CR0Set);
break ;
case VELOCITY_INIT_COLD:
default :
/*
* Do reset
*/
velocity_soft_reset(vptr);
mdelay(5 );
if (!vptr->no_eeprom) {
mac_eeprom_reload(regs);
for (i = 0 ; i < 6 ; i++)
writeb(netdev->dev_addr[i], regs->PAR + i);
}
/*
* clear Pre_ACPI bit .
*/
BYTE_REG_BITS_OFF(CFGA_PACPI, &(regs->CFGA));
mac_set_rx_thresh(regs, vptr->options.rx_thresh);
mac_set_dma_length(regs, vptr->options.DMA_length);
writeb(WOLCFG_SAM | WOLCFG_SAB, ®s->WOLCFGSet);
/*
* Back off algorithm use original IEEE standard
*/
BYTE_REG_BITS_SET(CFGB_OFSET, (CFGB_CRANDOM | CFGB_CAP | CFGB_MBA | CFGB_BAKOPT), ®s->CFGB);
/*
* Init CAM filter
*/
velocity_init_cam_filter(vptr);
/*
* Set packet filter : Receive directed and broadcast address
*/
velocity_set_multi(netdev);
/*
* Enable MII auto - polling
*/
enable_mii_autopoll(regs);
setup_adaptive_interrupts(vptr);
writel(vptr->rx.pool_dma, ®s->RDBaseLo);
writew(vptr->options.numrx - 1 , ®s->RDCSize);
mac_rx_queue_run(regs);
mac_rx_queue_wake(regs);
writew(vptr->options.numtx - 1 , ®s->TDCSize);
for (i = 0 ; i < vptr->tx.numq; i++) {
writel(vptr->tx.pool_dma[i], ®s->TDBaseLo[i]);
mac_tx_queue_run(regs, i);
}
init_flow_control_register(vptr);
writel(CR0_STOP, ®s->CR0Clr);
writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), ®s->CR0Set);
mii_status = velocity_get_opt_media_mode(vptr);
netif_stop_queue(netdev);
mii_init(vptr, mii_status);
if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
velocity_print_link_status(vptr);
if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
netif_wake_queue(netdev);
}
enable_flow_control_ability(vptr);
mac_hw_mibs_init(regs);
mac_write_int_mask(vptr->int_mask, regs);
mac_clear_isr(regs);
}
}
static void velocity_give_many_rx_descs(struct velocity_info *vptr)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
int avail, dirty, unusable;
/*
* RD number must be equal to 4 X per hardware spec
* ( programming guide rev 1 . 20 , p . 13 )
*/
if (vptr->rx.filled < 4 )
return ;
wmb();
unusable = vptr->rx.filled & 0 x0003;
dirty = vptr->rx.dirty - unusable;
for (avail = vptr->rx.filled & 0 xfffc; avail; avail--) {
dirty = (dirty > 0 ) ? dirty - 1 : vptr->options.numrx - 1 ;
vptr->rx.ring[dirty].rdesc0.len |= OWNED_BY_NIC;
}
writew(vptr->rx.filled & 0 xfffc, ®s->RBRDU);
vptr->rx.filled = unusable;
}
/**
* velocity_init_dma_rings - set up DMA rings
* @ vptr : Velocity to set up
*
* Allocate PCI mapped DMA rings for the receive and transmit layer
* to use .
*/
static int velocity_init_dma_rings(struct velocity_info *vptr)
{
struct velocity_opt *opt = &vptr->options;
const unsigned int rx_ring_size = opt->numrx * sizeof (struct rx_desc);
const unsigned int tx_ring_size = opt->numtx * sizeof (struct tx_desc);
dma_addr_t pool_dma;
void *pool;
unsigned int i;
/*
* Allocate all RD / TD rings a single pool .
*
* dma_alloc_coherent ( ) fulfills the requirement for 64 bytes
* alignment
*/
pool = dma_alloc_coherent(vptr->dev, tx_ring_size * vptr->tx.numq +
rx_ring_size, &pool_dma, GFP_ATOMIC);
if (!pool) {
dev_err(vptr->dev, "%s : DMA memory allocation failed.\n" ,
vptr->netdev->name);
return -ENOMEM;
}
vptr->rx.ring = pool;
vptr->rx.pool_dma = pool_dma;
pool += rx_ring_size;
pool_dma += rx_ring_size;
for (i = 0 ; i < vptr->tx.numq; i++) {
vptr->tx.rings[i] = pool;
vptr->tx.pool_dma[i] = pool_dma;
pool += tx_ring_size;
pool_dma += tx_ring_size;
}
return 0 ;
}
static void velocity_set_rxbufsize(struct velocity_info *vptr, int mtu)
{
vptr->rx.buf_sz = (mtu <= ETH_DATA_LEN) ? PKT_BUF_SZ : mtu + 32 ;
}
/**
* velocity_alloc_rx_buf - allocate aligned receive buffer
* @ vptr : velocity
* @ idx : ring index
*
* Allocate a new full sized buffer for the reception of a frame and
* map it into PCI space for the hardware to use . The hardware
* requires * 64 * byte alignment of the buffer which makes life
* less fun than would be ideal .
*/
static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
{
struct rx_desc *rd = &(vptr->rx.ring[idx]);
struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
rd_info->skb = netdev_alloc_skb(vptr->netdev, vptr->rx.buf_sz + 64 );
if (rd_info->skb == NULL)
return -ENOMEM;
/*
* Do the gymnastics to get the buffer head for data at
* 64 byte alignment .
*/
skb_reserve(rd_info->skb,
64 - ((unsigned long ) rd_info->skb->data & 63 ));
rd_info->skb_dma = dma_map_single(vptr->dev, rd_info->skb->data,
vptr->rx.buf_sz, DMA_FROM_DEVICE);
/*
* Fill in the descriptor to match
*/
*((u32 *) & (rd->rdesc0)) = 0 ;
rd->size = cpu_to_le16(vptr->rx.buf_sz) | RX_INTEN;
rd->pa_low = cpu_to_le32(rd_info->skb_dma);
rd->pa_high = 0 ;
return 0 ;
}
static int velocity_rx_refill(struct velocity_info *vptr)
{
int dirty = vptr->rx.dirty, done = 0 ;
do {
struct rx_desc *rd = vptr->rx.ring + dirty;
/* Fine for an all zero Rx desc at init time as well */
if (rd->rdesc0.len & OWNED_BY_NIC)
break ;
if (!vptr->rx.info[dirty].skb) {
if (velocity_alloc_rx_buf(vptr, dirty) < 0 )
break ;
}
done++;
dirty = (dirty < vptr->options.numrx - 1 ) ? dirty + 1 : 0 ;
} while (dirty != vptr->rx.curr);
if (done) {
vptr->rx.dirty = dirty;
vptr->rx.filled += done;
}
return done;
}
/**
* velocity_free_rd_ring - free receive ring
* @ vptr : velocity to clean up
*
* Free the receive buffers for each ring slot and any
* attached socket buffers that need to go away .
*/
static void velocity_free_rd_ring(struct velocity_info *vptr)
{
int i;
if (vptr->rx.info == NULL)
return ;
for (i = 0 ; i < vptr->options.numrx; i++) {
struct velocity_rd_info *rd_info = &(vptr->rx.info[i]);
struct rx_desc *rd = vptr->rx.ring + i;
memset(rd, 0 , sizeof (*rd));
if (!rd_info->skb)
continue ;
dma_unmap_single(vptr->dev, rd_info->skb_dma, vptr->rx.buf_sz,
DMA_FROM_DEVICE);
rd_info->skb_dma = 0 ;
dev_kfree_skb(rd_info->skb);
rd_info->skb = NULL;
}
kfree(vptr->rx.info);
vptr->rx.info = NULL;
}
/**
* velocity_init_rd_ring - set up receive ring
* @ vptr : velocity to configure
*
* Allocate and set up the receive buffers for each ring slot and
* assign them to the network adapter .
*/
static int velocity_init_rd_ring(struct velocity_info *vptr)
{
int ret = -ENOMEM;
vptr->rx.info = kcalloc(vptr->options.numrx,
sizeof (struct velocity_rd_info), GFP_KERNEL);
if (!vptr->rx.info)
goto out;
velocity_init_rx_ring_indexes(vptr);
if (velocity_rx_refill(vptr) != vptr->options.numrx) {
netdev_err(vptr->netdev, "failed to allocate RX buffer\n" );
velocity_free_rd_ring(vptr);
goto out;
}
ret = 0 ;
out:
return ret;
}
/**
* velocity_init_td_ring - set up transmit ring
* @ vptr : velocity
*
* Set up the transmit ring and chain the ring pointers together .
* Returns zero on success or a negative posix errno code for
* failure .
*/
static int velocity_init_td_ring(struct velocity_info *vptr)
{
int j;
/* Init the TD ring entries */
for (j = 0 ; j < vptr->tx.numq; j++) {
vptr->tx.infos[j] = kcalloc(vptr->options.numtx,
sizeof (struct velocity_td_info),
GFP_KERNEL);
if (!vptr->tx.infos[j]) {
while (--j >= 0 )
kfree(vptr->tx.infos[j]);
return -ENOMEM;
}
vptr->tx.tail[j] = vptr->tx.curr[j] = vptr->tx.used[j] = 0 ;
}
return 0 ;
}
/**
* velocity_free_dma_rings - free PCI ring pointers
* @ vptr : Velocity to free from
*
* Clean up the PCI ring buffers allocated to this velocity .
*/
static void velocity_free_dma_rings(struct velocity_info *vptr)
{
const int size = vptr->options.numrx * sizeof (struct rx_desc) +
vptr->options.numtx * sizeof (struct tx_desc) * vptr->tx.numq;
dma_free_coherent(vptr->dev, size, vptr->rx.ring, vptr->rx.pool_dma);
}
static int velocity_init_rings(struct velocity_info *vptr, int mtu)
{
int ret;
velocity_set_rxbufsize(vptr, mtu);
ret = velocity_init_dma_rings(vptr);
if (ret < 0 )
goto out;
ret = velocity_init_rd_ring(vptr);
if (ret < 0 )
goto err_free_dma_rings_0;
ret = velocity_init_td_ring(vptr);
if (ret < 0 )
goto err_free_rd_ring_1;
out:
return ret;
err_free_rd_ring_1:
velocity_free_rd_ring(vptr);
err_free_dma_rings_0:
velocity_free_dma_rings(vptr);
goto out;
}
/**
* velocity_free_tx_buf - free transmit buffer
* @ vptr : velocity
* @ tdinfo : buffer
* @ td : transmit descriptor to free
*
* Release an transmit buffer . If the buffer was preallocated then
* recycle it , if not then unmap the buffer .
*/
static void velocity_free_tx_buf(struct velocity_info *vptr,
struct velocity_td_info *tdinfo, struct tx_desc *td)
{
struct sk_buff *skb = tdinfo->skb;
int i;
/*
* Don ' t unmap the pre - allocated tx_bufs
*/
for (i = 0 ; i < tdinfo->nskb_dma; i++) {
size_t pktlen = max_t(size_t, skb->len, ETH_ZLEN);
/* For scatter-gather */
if (skb_shinfo(skb)->nr_frags > 0 )
pktlen = max_t(size_t, pktlen,
td->td_buf[i].size & ~TD_QUEUE);
dma_unmap_single(vptr->dev, tdinfo->skb_dma[i],
le16_to_cpu(pktlen), DMA_TO_DEVICE);
}
dev_consume_skb_irq(skb);
tdinfo->skb = NULL;
}
/*
* FIXME : could we merge this with velocity_free_tx_buf ?
*/
static void velocity_free_td_ring_entry(struct velocity_info *vptr,
int q, int n)
{
struct velocity_td_info *td_info = &(vptr->tx.infos[q][n]);
int i;
if (td_info == NULL)
return ;
if (td_info->skb) {
for (i = 0 ; i < td_info->nskb_dma; i++) {
if (td_info->skb_dma[i]) {
dma_unmap_single(vptr->dev, td_info->skb_dma[i],
td_info->skb->len, DMA_TO_DEVICE);
td_info->skb_dma[i] = 0 ;
}
}
dev_kfree_skb(td_info->skb);
td_info->skb = NULL;
}
}
/**
* velocity_free_td_ring - free td ring
* @ vptr : velocity
*
* Free up the transmit ring for this particular velocity adapter .
* We free the ring contents but not the ring itself .
*/
static void velocity_free_td_ring(struct velocity_info *vptr)
{
int i, j;
for (j = 0 ; j < vptr->tx.numq; j++) {
if (vptr->tx.infos[j] == NULL)
continue ;
for (i = 0 ; i < vptr->options.numtx; i++)
velocity_free_td_ring_entry(vptr, j, i);
kfree(vptr->tx.infos[j]);
vptr->tx.infos[j] = NULL;
}
}
static void velocity_free_rings(struct velocity_info *vptr)
{
velocity_free_td_ring(vptr);
velocity_free_rd_ring(vptr);
velocity_free_dma_rings(vptr);
}
/**
* velocity_error - handle error from controller
* @ vptr : velocity
* @ status : card status
*
* Process an error report from the hardware and attempt to recover
* the card itself . At the moment we cannot recover from some
* theoretically impossible errors but this could be fixed using
* the pci_device_failed logic to bounce the hardware
*
*/
static void velocity_error(struct velocity_info *vptr, int status)
{
if (status & ISR_TXSTLI) {
struct mac_regs __iomem *regs = vptr->mac_regs;
netdev_err(vptr->netdev, "TD structure error TDindex=%hx\n" ,
readw(®s->TDIdx[0 ]));
BYTE_REG_BITS_ON(TXESR_TDSTR, ®s->TXESR);
writew(TRDCSR_RUN, ®s->TDCSRClr);
netif_stop_queue(vptr->netdev);
/* FIXME: port over the pci_device_failed code and use it
here */
}
if (status & ISR_SRCI) {
struct mac_regs __iomem *regs = vptr->mac_regs;
int linked;
if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
vptr->mii_status = check_connection_type(regs);
/*
* If it is a 3119 , disable frame bursting in
* halfduplex mode and enable it in fullduplex
* mode
*/
if (vptr->rev_id < REV_ID_VT3216_A0) {
if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
BYTE_REG_BITS_ON(TCR_TB2BDIS, ®s->TCR);
else
BYTE_REG_BITS_OFF(TCR_TB2BDIS, ®s->TCR);
}
/*
* Only enable CD heart beat counter in 10 HD mode
*/
if (!(vptr->mii_status & VELOCITY_DUPLEX_FULL) && (vptr->mii_status & VELOCITY_SPEED_10))
BYTE_REG_BITS_OFF(TESTCFG_HBDIS, ®s->TESTCFG);
else
BYTE_REG_BITS_ON(TESTCFG_HBDIS, ®s->TESTCFG);
setup_queue_timers(vptr);
}
/*
* Get link status from PHYSR0
*/
linked = readb(®s->PHYSR0) & PHYSR0_LINKGD;
if (linked) {
vptr->mii_status &= ~VELOCITY_LINK_FAIL;
netif_carrier_on(vptr->netdev);
} else {
vptr->mii_status |= VELOCITY_LINK_FAIL;
netif_carrier_off(vptr->netdev);
}
velocity_print_link_status(vptr);
enable_flow_control_ability(vptr);
/*
* Re - enable auto - polling because SRCI will disable
* auto - polling
*/
enable_mii_autopoll(regs);
if (vptr->mii_status & VELOCITY_LINK_FAIL)
netif_stop_queue(vptr->netdev);
else
netif_wake_queue(vptr->netdev);
}
if (status & ISR_MIBFI)
velocity_update_hw_mibs(vptr);
if (status & ISR_LSTEI)
mac_rx_queue_wake(vptr->mac_regs);
}
/**
* velocity_tx_srv - transmit interrupt service
* @ vptr : Velocity
*
* Scan the queues looking for transmitted packets that
* we can complete and clean up . Update any statistics as
* necessary /
*/
static int velocity_tx_srv(struct velocity_info *vptr)
{
struct tx_desc *td;
int qnum;
int full = 0 ;
int idx;
int works = 0 ;
struct velocity_td_info *tdinfo;
struct net_device_stats *stats = &vptr->netdev->stats;
for (qnum = 0 ; qnum < vptr->tx.numq; qnum++) {
for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0 ;
idx = (idx + 1 ) % vptr->options.numtx) {
/*
* Get Tx Descriptor
*/
td = &(vptr->tx.rings[qnum][idx]);
tdinfo = &(vptr->tx.infos[qnum][idx]);
if (td->tdesc0.len & OWNED_BY_NIC)
break ;
if ((works++ > 15 ))
break ;
if (td->tdesc0.TSR & TSR0_TERR) {
stats->tx_errors++;
stats->tx_dropped++;
if (td->tdesc0.TSR & TSR0_CDH)
stats->tx_heartbeat_errors++;
if (td->tdesc0.TSR & TSR0_CRS)
stats->tx_carrier_errors++;
if (td->tdesc0.TSR & TSR0_ABT)
stats->tx_aborted_errors++;
if (td->tdesc0.TSR & TSR0_OWC)
stats->tx_window_errors++;
} else {
stats->tx_packets++;
stats->tx_bytes += tdinfo->skb->len;
}
velocity_free_tx_buf(vptr, tdinfo, td);
vptr->tx.used[qnum]--;
}
vptr->tx.tail[qnum] = idx;
if (AVAIL_TD(vptr, qnum) < 1 )
full = 1 ;
}
/*
* Look to see if we should kick the transmit network
* layer for more work .
*/
if (netif_queue_stopped(vptr->netdev) && (full == 0 ) &&
(!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
netif_wake_queue(vptr->netdev);
}
return works;
}
/**
* velocity_rx_csum - checksum process
* @ rd : receive packet descriptor
* @ skb : network layer packet buffer
*
* Process the status bits for the received packet and determine
* if the checksum was computed and verified by the hardware
*/
static inline void velocity_rx_csum(struct rx_desc *rd, struct sk_buff *skb)
{
skb_checksum_none_assert(skb);
if (rd->rdesc1.CSM & CSM_IPKT) {
if (rd->rdesc1.CSM & CSM_IPOK) {
if ((rd->rdesc1.CSM & CSM_TCPKT) ||
(rd->rdesc1.CSM & CSM_UDPKT)) {
if (!(rd->rdesc1.CSM & CSM_TUPOK))
return ;
}
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
}
}
/**
* velocity_rx_copy - in place Rx copy for small packets
* @ rx_skb : network layer packet buffer candidate
* @ pkt_size : received data size
* @ vptr : velocity adapter
*
* Replace the current skb that is scheduled for Rx processing by a
* shorter , immediately allocated skb , if the received packet is small
* enough . This function returns a negative value if the received
* packet is too big or if memory is exhausted .
*/
static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
struct velocity_info *vptr)
{
int ret = -1 ;
if (pkt_size < rx_copybreak) {
struct sk_buff *new_skb;
new_skb = netdev_alloc_skb_ip_align(vptr->netdev, pkt_size);
if (new_skb) {
new_skb->ip_summed = rx_skb[0 ]->ip_summed;
skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size);
*rx_skb = new_skb;
ret = 0 ;
}
}
return ret;
}
/**
* velocity_iph_realign - IP header alignment
* @ vptr : velocity we are handling
* @ skb : network layer packet buffer
* @ pkt_size : received data size
*
* Align IP header on a 2 bytes boundary . This behavior can be
* configured by the user .
*/
static inline void velocity_iph_realign(struct velocity_info *vptr,
struct sk_buff *skb, int pkt_size)
{
if (vptr->flags & VELOCITY_FLAGS_IP_ALIGN) {
memmove(skb->data + 2 , skb->data, pkt_size);
skb_reserve(skb, 2 );
}
}
/**
* velocity_receive_frame - received packet processor
* @ vptr : velocity we are handling
* @ idx : ring index
*
* A packet has arrived . We process the packet and if appropriate
* pass the frame up the network stack
*/
static int velocity_receive_frame(struct velocity_info *vptr, int idx)
{
struct net_device_stats *stats = &vptr->netdev->stats;
struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
struct rx_desc *rd = &(vptr->rx.ring[idx]);
int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0 x3fff;
struct sk_buff *skb;
if (unlikely(rd->rdesc0.RSR & (RSR_STP | RSR_EDP | RSR_RL))) {
if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP))
netdev_err(vptr->netdev, "received frame spans multiple RDs\n" );
stats->rx_length_errors++;
return -EINVAL;
}
if (rd->rdesc0.RSR & RSR_MAR)
stats->multicast++;
skb = rd_info->skb;
dma_sync_single_for_cpu(vptr->dev, rd_info->skb_dma,
vptr->rx.buf_sz, DMA_FROM_DEVICE);
velocity_rx_csum(rd, skb);
if (velocity_rx_copy(&skb, pkt_len, vptr) < 0 ) {
velocity_iph_realign(vptr, skb, pkt_len);
rd_info->skb = NULL;
dma_unmap_single(vptr->dev, rd_info->skb_dma, vptr->rx.buf_sz,
DMA_FROM_DEVICE);
} else {
dma_sync_single_for_device(vptr->dev, rd_info->skb_dma,
vptr->rx.buf_sz, DMA_FROM_DEVICE);
}
skb_put(skb, pkt_len - 4 );
skb->protocol = eth_type_trans(skb, vptr->netdev);
if (rd->rdesc0.RSR & RSR_DETAG) {
u16 vid = swab16(le16_to_cpu(rd->rdesc1.PQTAG));
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid);
}
netif_receive_skb(skb);
stats->rx_bytes += pkt_len;
stats->rx_packets++;
return 0 ;
}
/**
* velocity_rx_srv - service RX interrupt
* @ vptr : velocity
* @ budget_left : remaining budget
*
* Walk the receive ring of the velocity adapter and remove
* any received packets from the receive queue . Hand the ring
* slots back to the adapter for reuse .
*/
static int velocity_rx_srv(struct velocity_info *vptr, int budget_left)
{
struct net_device_stats *stats = &vptr->netdev->stats;
int rd_curr = vptr->rx.curr;
int works = 0 ;
while (works < budget_left) {
struct rx_desc *rd = vptr->rx.ring + rd_curr;
if (!vptr->rx.info[rd_curr].skb)
break ;
if (rd->rdesc0.len & OWNED_BY_NIC)
break ;
rmb();
/*
* Don ' t drop CE or RL error frame although RXOK is off
*/
if (rd->rdesc0.RSR & (RSR_RXOK | RSR_CE | RSR_RL)) {
if (velocity_receive_frame(vptr, rd_curr) < 0 )
stats->rx_dropped++;
} else {
if (rd->rdesc0.RSR & RSR_CRC)
stats->rx_crc_errors++;
if (rd->rdesc0.RSR & RSR_FAE)
stats->rx_frame_errors++;
stats->rx_dropped++;
}
rd->size |= RX_INTEN;
rd_curr++;
if (rd_curr >= vptr->options.numrx)
rd_curr = 0 ;
works++;
}
vptr->rx.curr = rd_curr;
if ((works > 0 ) && (velocity_rx_refill(vptr) > 0 ))
velocity_give_many_rx_descs(vptr);
VAR_USED(stats);
return works;
}
static int velocity_poll(struct napi_struct *napi, int budget)
{
struct velocity_info *vptr = container_of(napi,
struct velocity_info, napi);
unsigned int rx_done;
unsigned long flags;
/*
* Do rx and tx twice for performance ( taken from the VIA
* out - of - tree driver ) .
*/
rx_done = velocity_rx_srv(vptr, budget);
spin_lock_irqsave(&vptr->lock, flags);
velocity_tx_srv(vptr);
/* If budget not fully consumed, exit the polling mode */
if (rx_done < budget) {
napi_complete_done(napi, rx_done);
mac_enable_int(vptr->mac_regs);
}
spin_unlock_irqrestore(&vptr->lock, flags);
return rx_done;
}
/**
* velocity_intr - interrupt callback
* @ irq : interrupt number
* @ dev_instance : interrupting device
*
* Called whenever an interrupt is generated by the velocity
* adapter IRQ line . We may not be the source of the interrupt
* and need to identify initially if we are , and if not exit as
* efficiently as possible .
*/
static irqreturn_t velocity_intr(int irq, void *dev_instance)
{
struct net_device *dev = dev_instance;
struct velocity_info *vptr = netdev_priv(dev);
u32 isr_status;
spin_lock(&vptr->lock);
isr_status = mac_read_isr(vptr->mac_regs);
/* Not us ? */
if (isr_status == 0 ) {
spin_unlock(&vptr->lock);
return IRQ_NONE;
}
/* Ack the interrupt */
mac_write_isr(vptr->mac_regs, isr_status);
if (likely(napi_schedule_prep(&vptr->napi))) {
mac_disable_int(vptr->mac_regs);
__napi_schedule(&vptr->napi);
}
if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
velocity_error(vptr, isr_status);
spin_unlock(&vptr->lock);
return IRQ_HANDLED;
}
/**
* velocity_open - interface activation callback
* @ dev : network layer device to open
*
* Called when the network layer brings the interface up . Returns
* a negative posix error code on failure , or zero on success .
*
* All the ring allocation and set up is done on open for this
* adapter to minimise memory usage when inactive
*/
static int velocity_open(struct net_device *dev)
{
struct velocity_info *vptr = netdev_priv(dev);
int ret;
ret = velocity_init_rings(vptr, dev->mtu);
if (ret < 0 )
goto out;
/* Ensure chip is running */
velocity_set_power_state(vptr, PCI_D0);
velocity_init_registers(vptr, VELOCITY_INIT_COLD);
ret = request_irq(dev->irq, velocity_intr, IRQF_SHARED,
dev->name, dev);
if (ret < 0 ) {
/* Power down the chip */
velocity_set_power_state(vptr, PCI_D3hot);
velocity_free_rings(vptr);
goto out;
}
velocity_give_many_rx_descs(vptr);
mac_enable_int(vptr->mac_regs);
netif_start_queue(dev);
napi_enable(&vptr->napi);
vptr->flags |= VELOCITY_FLAGS_OPENED;
out:
return ret;
}
/**
* velocity_shutdown - shut down the chip
* @ vptr : velocity to deactivate
*
* Shuts down the internal operations of the velocity and
* disables interrupts , autopolling , transmit and receive
*/
static void velocity_shutdown(struct velocity_info *vptr)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
mac_disable_int(regs);
writel(CR0_STOP, ®s->CR0Set);
writew(0 xFFFF, ®s->TDCSRClr);
writeb(0 xFF, ®s->RDCSRClr);
safe_disable_mii_autopoll(regs);
mac_clear_isr(regs);
}
/**
* velocity_change_mtu - MTU change callback
* @ dev : network device
* @ new_mtu : desired MTU
*
* Handle requests from the networking layer for MTU change on
* this interface . It gets called on a change by the network layer .
* Return zero for success or negative posix error code .
*/
static int velocity_change_mtu(struct net_device *dev, int new_mtu)
{
struct velocity_info *vptr = netdev_priv(dev);
int ret = 0 ;
if (!netif_running(dev)) {
WRITE_ONCE(dev->mtu, new_mtu);
goto out_0;
}
if (dev->mtu != new_mtu) {
struct velocity_info *tmp_vptr;
unsigned long flags;
struct rx_info rx;
struct tx_info tx;
tmp_vptr = kzalloc(sizeof (*tmp_vptr), GFP_KERNEL);
if (!tmp_vptr) {
ret = -ENOMEM;
goto out_0;
}
tmp_vptr->netdev = dev;
tmp_vptr->pdev = vptr->pdev;
tmp_vptr->dev = vptr->dev;
tmp_vptr->options = vptr->options;
tmp_vptr->tx.numq = vptr->tx.numq;
ret = velocity_init_rings(tmp_vptr, new_mtu);
if (ret < 0 )
goto out_free_tmp_vptr_1;
netdev_lock(dev);
napi_disable_locked(&vptr->napi);
spin_lock_irqsave(&vptr->lock, flags);
netif_stop_queue(dev);
velocity_shutdown(vptr);
rx = vptr->rx;
tx = vptr->tx;
vptr->rx = tmp_vptr->rx;
vptr->tx = tmp_vptr->tx;
tmp_vptr->rx = rx;
tmp_vptr->tx = tx;
WRITE_ONCE(dev->mtu, new_mtu);
velocity_init_registers(vptr, VELOCITY_INIT_COLD);
velocity_give_many_rx_descs(vptr);
napi_enable_locked(&vptr->napi);
mac_enable_int(vptr->mac_regs);
netif_start_queue(dev);
spin_unlock_irqrestore(&vptr->lock, flags);
netdev_unlock(dev);
velocity_free_rings(tmp_vptr);
out_free_tmp_vptr_1:
kfree(tmp_vptr);
}
out_0:
return ret;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
/**
* velocity_poll_controller - Velocity Poll controller function
* @ dev : network device
*
*
* Used by NETCONSOLE and other diagnostic tools to allow network I / P
* with interrupts disabled .
*/
static void velocity_poll_controller(struct net_device *dev)
{
disable_irq(dev->irq);
velocity_intr(dev->irq, dev);
enable_irq(dev->irq);
}
#endif
/**
* velocity_mii_ioctl - MII ioctl handler
* @ dev : network device
* @ ifr : the ifreq block for the ioctl
* @ cmd : the command
*
* Process MII requests made via ioctl from the network layer . These
* are used by tools like kudzu to interrogate the link state of the
* hardware
*/
static int velocity_mii_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct velocity_info *vptr = netdev_priv(dev);
struct mac_regs __iomem *regs = vptr->mac_regs;
unsigned long flags;
struct mii_ioctl_data *miidata = if_mii(ifr);
int err;
switch (cmd) {
case SIOCGMIIPHY:
miidata->phy_id = readb(®s->MIIADR) & 0 x1f;
break ;
case SIOCGMIIREG:
if (velocity_mii_read(vptr->mac_regs, miidata->reg_num & 0 x1f, &(miidata->val_out)) < 0 )
return -ETIMEDOUT;
break ;
case SIOCSMIIREG:
spin_lock_irqsave(&vptr->lock, flags);
err = velocity_mii_write(vptr->mac_regs, miidata->reg_num & 0 x1f, miidata->val_in);
spin_unlock_irqrestore(&vptr->lock, flags);
check_connection_type(vptr->mac_regs);
if (err)
return err;
break ;
default :
return -EOPNOTSUPP;
}
return 0 ;
}
/**
* velocity_ioctl - ioctl entry point
* @ dev : network device
* @ rq : interface request ioctl
* @ cmd : command code
*
* Called when the user issues an ioctl request to the network
* device in question . The velocity interface supports MII .
*/
static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
struct velocity_info *vptr = netdev_priv(dev);
int ret;
/* If we are asked for information and the device is power
saving then we need to bring the device back up to talk to it */
if (!netif_running(dev))
velocity_set_power_state(vptr, PCI_D0);
switch (cmd) {
case SIOCGMIIPHY: /* Get address of MII PHY in use. */
case SIOCGMIIREG: /* Read MII PHY register. */
case SIOCSMIIREG: /* Write to MII PHY register. */
ret = velocity_mii_ioctl(dev, rq, cmd);
break ;
default :
ret = -EOPNOTSUPP;
}
if (!netif_running(dev))
velocity_set_power_state(vptr, PCI_D3hot);
return ret;
}
/**
* velocity_get_stats - statistics callback
* @ dev : network device
*
* Callback from the network layer to allow driver statistics
* to be resynchronized with hardware collected state . In the
* case of the velocity we need to pull the MIB counters from
* the hardware into the counters before letting the network
* layer display them .
*/
static struct net_device_stats *velocity_get_stats(struct net_device *dev)
{
struct velocity_info *vptr = netdev_priv(dev);
/* If the hardware is down, don't touch MII */
if (!netif_running(dev))
return &dev->stats;
spin_lock_irq(&vptr->lock);
velocity_update_hw_mibs(vptr);
spin_unlock_irq(&vptr->lock);
dev->stats.rx_packets = vptr->mib_counter[HW_MIB_ifRxAllPkts];
dev->stats.rx_errors = vptr->mib_counter[HW_MIB_ifRxErrorPkts];
dev->stats.rx_length_errors = vptr->mib_counter[HW_MIB_ifInRangeLengthErrors];
// unsigned long rx_dropped; /* no space in linux buffers */
dev->stats.collisions = vptr->mib_counter[HW_MIB_ifTxEtherCollisions];
/* detailed rx_errors: */
// unsigned long rx_length_errors;
// unsigned long rx_over_errors; /* receiver ring buff overflow */
dev->stats.rx_crc_errors = vptr->mib_counter[HW_MIB_ifRxPktCRCE];
// unsigned long rx_frame_errors; /* recv'd frame alignment error */
// unsigned long rx_fifo_errors; /* recv'r fifo overrun */
// unsigned long rx_missed_errors; /* receiver missed packet */
/* detailed tx_errors */
// unsigned long tx_fifo_errors;
return &dev->stats;
}
/**
* velocity_close - close adapter callback
* @ dev : network device
*
* Callback from the network layer when the velocity is being
* deactivated by the network layer
*/
static int velocity_close(struct net_device *dev)
{
struct velocity_info *vptr = netdev_priv(dev);
napi_disable(&vptr->napi);
netif_stop_queue(dev);
velocity_shutdown(vptr);
if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
velocity_get_ip(vptr);
free_irq(dev->irq, dev);
velocity_free_rings(vptr);
vptr->flags &= (~VELOCITY_FLAGS_OPENED);
return 0 ;
}
/**
* velocity_xmit - transmit packet callback
* @ skb : buffer to transmit
* @ dev : network device
*
* Called by the network layer to request a packet is queued to
* the velocity . Returns zero on success .
*/
static netdev_tx_t velocity_xmit(struct sk_buff *skb,
struct net_device *dev)
{
struct velocity_info *vptr = netdev_priv(dev);
int qnum = 0 ;
struct tx_desc *td_ptr;
struct velocity_td_info *tdinfo;
unsigned long flags;
int pktlen;
int index, prev;
int i = 0 ;
if (skb_padto(skb, ETH_ZLEN))
goto out;
/* The hardware can handle at most 7 memory segments, so merge
* the skb if there are more */
if (skb_shinfo(skb)->nr_frags > 6 && __skb_linearize(skb)) {
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
pktlen = skb_shinfo(skb)->nr_frags == 0 ?
max_t(unsigned int , skb->len, ETH_ZLEN) :
skb_headlen(skb);
spin_lock_irqsave(&vptr->lock, flags);
index = vptr->tx.curr[qnum];
td_ptr = &(vptr->tx.rings[qnum][index]);
tdinfo = &(vptr->tx.infos[qnum][index]);
td_ptr->tdesc1.TCR = TCR0_TIC;
td_ptr->td_buf[0 ].size &= ~TD_QUEUE;
/*
* Map the linear network buffer into PCI space and
* add it to the transmit ring .
*/
tdinfo->skb = skb;
tdinfo->skb_dma[0 ] = dma_map_single(vptr->dev, skb->data, pktlen,
DMA_TO_DEVICE);
td_ptr->tdesc0.len = cpu_to_le16(pktlen);
td_ptr->td_buf[0 ].pa_low = cpu_to_le32(tdinfo->skb_dma[0 ]);
td_ptr->td_buf[0 ].pa_high = 0 ;
td_ptr->td_buf[0 ].size = cpu_to_le16(pktlen);
/* Handle fragments */
for (i = 0 ; i < skb_shinfo(skb)->nr_frags; i++) {
const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
tdinfo->skb_dma[i + 1 ] = skb_frag_dma_map(vptr->dev,
frag, 0 ,
skb_frag_size(frag),
DMA_TO_DEVICE);
td_ptr->td_buf[i + 1 ].pa_low = cpu_to_le32(tdinfo->skb_dma[i + 1 ]);
td_ptr->td_buf[i + 1 ].pa_high = 0 ;
td_ptr->td_buf[i + 1 ].size = cpu_to_le16(skb_frag_size(frag));
}
tdinfo->nskb_dma = i + 1 ;
td_ptr->tdesc1.cmd = TCPLS_NORMAL + (tdinfo->nskb_dma + 1 ) * 16 ;
if (skb_vlan_tag_present(skb)) {
td_ptr->tdesc1.vlan = cpu_to_le16(skb_vlan_tag_get(skb));
td_ptr->tdesc1.TCR |= TCR0_VETAG;
}
/*
* Handle hardware checksum
*/
if (skb->ip_summed == CHECKSUM_PARTIAL) {
const struct iphdr *ip = ip_hdr(skb);
if (ip->protocol == IPPROTO_TCP)
td_ptr->tdesc1.TCR |= TCR0_TCPCK;
else if (ip->protocol == IPPROTO_UDP)
td_ptr->tdesc1.TCR |= (TCR0_UDPCK);
td_ptr->tdesc1.TCR |= TCR0_IPCK;
}
prev = index - 1 ;
if (prev < 0 )
prev = vptr->options.numtx - 1 ;
td_ptr->tdesc0.len |= OWNED_BY_NIC;
vptr->tx.used[qnum]++;
vptr->tx.curr[qnum] = (index + 1 ) % vptr->options.numtx;
if (AVAIL_TD(vptr, qnum) < 1 )
netif_stop_queue(dev);
td_ptr = &(vptr->tx.rings[qnum][prev]);
td_ptr->td_buf[0 ].size |= TD_QUEUE;
mac_tx_queue_wake(vptr->mac_regs, qnum);
spin_unlock_irqrestore(&vptr->lock, flags);
out:
return NETDEV_TX_OK;
}
static const struct net_device_ops velocity_netdev_ops = {
.ndo_open = velocity_open,
.ndo_stop = velocity_close,
.ndo_start_xmit = velocity_xmit,
.ndo_get_stats = velocity_get_stats,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
.ndo_set_rx_mode = velocity_set_multi,
.ndo_change_mtu = velocity_change_mtu,
.ndo_eth_ioctl = velocity_ioctl,
.ndo_vlan_rx_add_vid = velocity_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = velocity_vlan_rx_kill_vid,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = velocity_poll_controller,
#endif
};
/**
* velocity_init_info - init private data
* @ vptr : Velocity info
* @ info : Board type
*
* Set up the initial velocity_info struct for the device that has been
* discovered .
*/
static void velocity_init_info(struct velocity_info *vptr,
const struct velocity_info_tbl *info)
{
vptr->chip_id = info->chip_id;
vptr->tx.numq = info->txqueue;
vptr->multicast_limit = MCAM_SIZE;
spin_lock_init(&vptr->lock);
}
/**
* velocity_get_pci_info - retrieve PCI info for device
* @ vptr : velocity device
*
* Retrieve the PCI configuration space data that interests us from
* the kernel PCI layer
*/
static int velocity_get_pci_info(struct velocity_info *vptr)
{
struct pci_dev *pdev = vptr->pdev;
pci_set_master(pdev);
vptr->ioaddr = pci_resource_start(pdev, 0 );
vptr->memaddr = pci_resource_start(pdev, 1 );
if (!(pci_resource_flags(pdev, 0 ) & IORESOURCE_IO)) {
dev_err(&pdev->dev,
"region #0 is not an I/O resource, aborting.\n" );
return -EINVAL;
}
if ((pci_resource_flags(pdev, 1 ) & IORESOURCE_IO)) {
dev_err(&pdev->dev,
"region #1 is an I/O resource, aborting.\n" );
return -EINVAL;
}
if (pci_resource_len(pdev, 1 ) < VELOCITY_IO_SIZE) {
dev_err(&pdev->dev, "region #1 is too small.\n" );
return -EINVAL;
}
return 0 ;
}
/**
* velocity_get_platform_info - retrieve platform info for device
* @ vptr : velocity device
*
* Retrieve the Platform configuration data that interests us
*/
static int velocity_get_platform_info(struct velocity_info *vptr)
{
struct resource res;
int ret;
vptr->no_eeprom = of_property_read_bool(vptr->dev->of_node, "no-eeprom" );
ret = of_address_to_resource(vptr->dev->of_node, 0 , &res);
if (ret) {
dev_err(vptr->dev, "unable to find memory address\n" );
return ret;
}
vptr->memaddr = res.start;
if (resource_size(&res) < VELOCITY_IO_SIZE) {
dev_err(vptr->dev, "memory region is too small.\n" );
return -EINVAL;
}
return 0 ;
}
/**
* velocity_print_info - per driver data
* @ vptr : velocity
*
* Print per driver data as the kernel driver finds Velocity
* hardware
*/
static void velocity_print_info(struct velocity_info *vptr)
{
netdev_info(vptr->netdev, "%s - Ethernet Address: %pM\n" ,
get_chip_name(vptr->chip_id), vptr->netdev->dev_addr);
}
static u32 velocity_get_link(struct net_device *dev)
{
struct velocity_info *vptr = netdev_priv(dev);
struct mac_regs __iomem *regs = vptr->mac_regs;
return BYTE_REG_BITS_IS_ON(PHYSR0_LINKGD, ®s->PHYSR0) ? 1 : 0 ;
}
/**
* velocity_probe - set up discovered velocity device
* @ dev : PCI device
* @ info : table of match
* @ irq : interrupt info
* @ bustype : bus that device is connected to
*
* Configure a discovered adapter from scratch . Return a negative
* errno error code on failure paths .
*/
static int velocity_probe(struct device *dev, int irq,
const struct velocity_info_tbl *info,
enum velocity_bus_type bustype)
{
struct net_device *netdev;
int i;
struct velocity_info *vptr;
struct mac_regs __iomem *regs;
int ret = -ENOMEM;
u8 addr[ETH_ALEN];
/* FIXME: this driver, like almost all other ethernet drivers,
* can support more than MAX_UNITS .
*/
if (velocity_nics >= MAX_UNITS) {
dev_notice(dev, "already found %d NICs.\n" , velocity_nics);
return -ENODEV;
}
netdev = alloc_etherdev(sizeof (struct velocity_info));
if (!netdev)
goto out;
/* Chain it all together */
SET_NETDEV_DEV(netdev, dev);
vptr = netdev_priv(netdev);
pr_info_once("%s Ver. %s\n" , VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
pr_info_once("Copyright (c) 2002, 2003 VIA Networking Technologies, Inc.\n" );
pr_info_once("Copyright (c) 2004 Red Hat Inc.\n" );
netdev->irq = irq;
vptr->netdev = netdev;
vptr->dev = dev;
velocity_init_info(vptr, info);
if (bustype == BUS_PCI) {
vptr->pdev = to_pci_dev(dev);
ret = velocity_get_pci_info(vptr);
if (ret < 0 )
goto err_free_dev;
} else {
vptr->pdev = NULL;
ret = velocity_get_platform_info(vptr);
if (ret < 0 )
goto err_free_dev;
}
regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE);
if (regs == NULL) {
ret = -EIO;
goto err_free_dev;
}
vptr->mac_regs = regs;
vptr->rev_id = readb(®s->rev_id);
mac_wol_reset(regs);
for (i = 0 ; i < 6 ; i++)
addr[i] = readb(®s->PAR[i]);
eth_hw_addr_set(netdev, addr);
velocity_get_options(&vptr->options, velocity_nics);
/*
* Mask out the options cannot be set to the chip
*/
vptr->options.flags &= info->flags;
/*
* Enable the chip specified capbilities
*/
vptr->flags = vptr->options.flags | (info->flags & 0 xFF000000UL);
vptr->wol_opts = vptr->options.wol_opts;
vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
netdev->netdev_ops = &velocity_netdev_ops;
netdev->ethtool_ops = &velocity_ethtool_ops;
netif_napi_add(netdev, &vptr->napi, velocity_poll);
netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
NETIF_F_HW_VLAN_CTAG_TX;
netdev->features |= NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_IP_CSUM;
/* MTU range: 64 - 9000 */
netdev->min_mtu = VELOCITY_MIN_MTU;
netdev->max_mtu = VELOCITY_MAX_MTU;
ret = register_netdev(netdev);
if (ret < 0 )
goto err_iounmap;
if (!velocity_get_link(netdev)) {
netif_carrier_off(netdev);
vptr->mii_status |= VELOCITY_LINK_FAIL;
}
velocity_print_info(vptr);
dev_set_drvdata(vptr->dev, netdev);
/* and leave the chip powered down */
velocity_set_power_state(vptr, PCI_D3hot);
velocity_nics++;
out:
return ret;
err_iounmap:
netif_napi_del(&vptr->napi);
iounmap(regs);
err_free_dev:
free_netdev(netdev);
goto out;
}
/**
* velocity_remove - device unplug
* @ dev : device being removed
*
* Device unload callback . Called on an unplug or on module
* unload for each active device that is present . Disconnects
* the device from the network layer and frees all the resources
*/
static int velocity_remove(struct device *dev)
{
struct net_device *netdev = dev_get_drvdata(dev);
struct velocity_info *vptr = netdev_priv(netdev);
unregister_netdev(netdev);
netif_napi_del(&vptr->napi);
iounmap(vptr->mac_regs);
free_netdev(netdev);
velocity_nics--;
return 0 ;
}
static int velocity_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
const struct velocity_info_tbl *info =
&chip_info_table[ent->driver_data];
int ret;
ret = pci_enable_device(pdev);
if (ret < 0 )
return ret;
ret = pci_request_regions(pdev, VELOCITY_NAME);
if (ret < 0 ) {
dev_err(&pdev->dev, "No PCI resources.\n" );
goto fail1;
}
ret = velocity_probe(&pdev->dev, pdev->irq, info, BUS_PCI);
if (ret == 0 )
return 0 ;
pci_release_regions(pdev);
fail1:
pci_disable_device(pdev);
return ret;
}
static void velocity_pci_remove(struct pci_dev *pdev)
{
velocity_remove(&pdev->dev);
pci_release_regions(pdev);
pci_disable_device(pdev);
}
static int velocity_platform_probe(struct platform_device *pdev)
{
const struct velocity_info_tbl *info;
int irq;
info = of_device_get_match_data(&pdev->dev);
if (!info)
return -EINVAL;
irq = irq_of_parse_and_map(pdev->dev.of_node, 0 );
if (!irq)
return -EINVAL;
return velocity_probe(&pdev->dev, irq, info, BUS_PLATFORM);
}
static void velocity_platform_remove(struct platform_device *pdev)
{
velocity_remove(&pdev->dev);
}
#ifdef CONFIG_PM_SLEEP
/**
* wol_calc_crc - WOL CRC
* @ size : size of the wake mask
* @ pattern : data pattern
* @ mask_pattern : mask
*
* Compute the wake on lan crc hashes for the packet header
* we are interested in .
*/
static u16 wol_calc_crc(int size, u8 *pattern, u8 *mask_pattern)
{
u16 crc = 0 xFFFF;
u8 mask;
int i, j;
for (i = 0 ; i < size; i++) {
mask = mask_pattern[i];
/* Skip this loop if the mask equals to zero */
if (mask == 0 x00)
continue ;
for (j = 0 ; j < 8 ; j++) {
if ((mask & 0 x01) == 0 ) {
mask >>= 1 ;
continue ;
}
mask >>= 1 ;
crc = crc_ccitt(crc, &(pattern[i * 8 + j]), 1 );
}
}
/* Finally, invert the result once to get the correct data */
crc = ~crc;
return bitrev32(crc) >> 16 ;
}
/**
* velocity_set_wol - set up for wake on lan
* @ vptr : velocity to set WOL status on
*
* Set a card up for wake on lan either by unicast or by
* ARP packet .
*
* FIXME : check static buffer is safe here
*/
static int velocity_set_wol(struct velocity_info *vptr)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
enum speed_opt spd_dpx = vptr->options.spd_dpx;
static u8 buf[256 ];
int i;
static u32 mask_pattern[2 ][4 ] = {
{0 x00203000, 0 x000003C0, 0 x00000000, 0 x0000000}, /* ARP */
{0 xfffff000, 0 xffffffff, 0 xffffffff, 0 x000ffff} /* Magic Packet */
};
writew(0 xFFFF, ®s->WOLCRClr);
writeb(WOLCFG_SAB | WOLCFG_SAM, ®s->WOLCFGSet);
writew(WOLCR_MAGIC_EN, ®s->WOLCRSet);
/*
if ( vptr - > wol_opts & VELOCITY_WOL_PHY )
writew ( ( WOLCR_LINKON_EN | WOLCR_LINKOFF_EN ) , & regs - > WOLCRSet ) ;
*/
if (vptr->wol_opts & VELOCITY_WOL_UCAST)
writew(WOLCR_UNICAST_EN, ®s->WOLCRSet);
if (vptr->wol_opts & VELOCITY_WOL_ARP) {
struct arp_packet *arp = (struct arp_packet *) buf;
u16 crc;
memset(buf, 0 , sizeof (struct arp_packet) + 7 );
for (i = 0 ; i < 4 ; i++)
writel(mask_pattern[0 ][i], ®s->ByteMask[0 ][i]);
arp->type = htons(ETH_P_ARP);
arp->ar_op = htons(1 );
memcpy(arp->ar_tip, vptr->ip_addr, 4 );
crc = wol_calc_crc((sizeof (struct arp_packet) + 7 ) / 8 , buf,
(u8 *) & mask_pattern[0 ][0 ]);
writew(crc, ®s->PatternCRC[0 ]);
writew(WOLCR_ARP_EN, ®s->WOLCRSet);
}
BYTE_REG_BITS_ON(PWCFG_WOLTYPE, ®s->PWCFGSet);
BYTE_REG_BITS_ON(PWCFG_LEGACY_WOLEN, ®s->PWCFGSet);
writew(0 x0FFF, ®s->WOLSRClr);
if (spd_dpx == SPD_DPX_1000_FULL)
goto mac_done;
if (spd_dpx != SPD_DPX_AUTO)
goto advertise_done;
if (vptr->mii_status & VELOCITY_AUTONEG_ENABLE) {
if (PHYID_GET_PHY_ID(vptr->phy_id) == PHYID_CICADA_CS8201)
MII_REG_BITS_ON(AUXCR_MDPPS, MII_NCONFIG, vptr->mac_regs);
MII_REG_BITS_OFF(ADVERTISE_1000FULL | ADVERTISE_1000HALF, MII_CTRL1000, vptr->mac_regs);
}
if (vptr->mii_status & VELOCITY_SPEED_1000)
MII_REG_BITS_ON(BMCR_ANRESTART, MII_BMCR, vptr->mac_regs);
advertise_done:
BYTE_REG_BITS_ON(CHIPGCR_FCMODE, ®s->CHIPGCR);
{
u8 GCR;
GCR = readb(®s->CHIPGCR);
GCR = (GCR & ~CHIPGCR_FCGMII) | CHIPGCR_FCFDX;
writeb(GCR, ®s->CHIPGCR);
}
mac_done:
BYTE_REG_BITS_OFF(ISR_PWEI, ®s->ISR);
/* Turn on SWPTAG just before entering power mode */
BYTE_REG_BITS_ON(STICKHW_SWPTAG, ®s->STICKHW);
/* Go to bed ..... */
BYTE_REG_BITS_ON((STICKHW_DS1 | STICKHW_DS0), ®s->STICKHW);
return 0 ;
}
/**
* velocity_save_context - save registers
* @ vptr : velocity
* @ context : buffer for stored context
*
* Retrieve the current configuration from the velocity hardware
* and stash it in the context structure , for use by the context
* restore functions . This allows us to save things we need across
* power down states
*/
static void velocity_save_context(struct velocity_info *vptr, struct velocity_context *context)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
u16 i;
u8 __iomem *ptr = (u8 __iomem *)regs;
for (i = MAC_REG_PAR; i < MAC_REG_CR0_CLR; i += 4 )
*((u32 *) (context->mac_reg + i)) = readl(ptr + i);
for (i = MAC_REG_MAR; i < MAC_REG_TDCSR_CLR; i += 4 )
*((u32 *) (context->mac_reg + i)) = readl(ptr + i);
for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4 )
*((u32 *) (context->mac_reg + i)) = readl(ptr + i);
}
static int velocity_suspend(struct device *dev)
{
struct net_device *netdev = dev_get_drvdata(dev);
struct velocity_info *vptr = netdev_priv(netdev);
unsigned long flags;
if (!netif_running(vptr->netdev))
return 0 ;
netif_device_detach(vptr->netdev);
spin_lock_irqsave(&vptr->lock, flags);
if (vptr->pdev)
pci_save_state(vptr->pdev);
if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
velocity_get_ip(vptr);
velocity_save_context(vptr, &vptr->context);
velocity_shutdown(vptr);
velocity_set_wol(vptr);
if (vptr->pdev)
pci_enable_wake(vptr->pdev, PCI_D3hot, 1 );
velocity_set_power_state(vptr, PCI_D3hot);
} else {
velocity_save_context(vptr, &vptr->context);
velocity_shutdown(vptr);
if (vptr->pdev)
pci_disable_device(vptr->pdev);
velocity_set_power_state(vptr, PCI_D3hot);
}
spin_unlock_irqrestore(&vptr->lock, flags);
return 0 ;
}
/**
* velocity_restore_context - restore registers
* @ vptr : velocity
* @ context : buffer for stored context
*
* Reload the register configuration from the velocity context
* created by velocity_save_context .
*/
static void velocity_restore_context(struct velocity_info *vptr, struct velocity_context *context)
{
struct mac_regs __iomem *regs = vptr->mac_regs;
int i;
u8 __iomem *ptr = (u8 __iomem *)regs;
for (i = MAC_REG_PAR; i < MAC_REG_CR0_SET; i += 4 )
writel(*((u32 *) (context->mac_reg + i)), ptr + i);
/* Just skip cr0 */
for (i = MAC_REG_CR1_SET; i < MAC_REG_CR0_CLR; i++) {
/* Clear */
writeb(~(*((u8 *) (context->mac_reg + i))), ptr + i + 4 );
/* Set */
writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
}
for (i = MAC_REG_MAR; i < MAC_REG_IMR; i += 4 )
writel(*((u32 *) (context->mac_reg + i)), ptr + i);
for (i = MAC_REG_RDBASE_LO; i < MAC_REG_FIFO_TEST0; i += 4 )
writel(*((u32 *) (context->mac_reg + i)), ptr + i);
for (i = MAC_REG_TDCSR_SET; i <= MAC_REG_RDCSR_SET; i++)
writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
}
static int velocity_resume(struct device *dev)
{
struct net_device *netdev = dev_get_drvdata(dev);
struct velocity_info *vptr = netdev_priv(netdev);
unsigned long flags;
int i;
if (!netif_running(vptr->netdev))
return 0 ;
velocity_set_power_state(vptr, PCI_D0);
if (vptr->pdev) {
pci_enable_wake(vptr->pdev, PCI_D0, 0 );
pci_restore_state(vptr->pdev);
}
mac_wol_reset(vptr->mac_regs);
spin_lock_irqsave(&vptr->lock, flags);
velocity_restore_context(vptr, &vptr->context);
velocity_init_registers(vptr, VELOCITY_INIT_WOL);
mac_disable_int(vptr->mac_regs);
velocity_tx_srv(vptr);
for (i = 0 ; i < vptr->tx.numq; i++) {
if (vptr->tx.used[i])
mac_tx_queue_wake(vptr->mac_regs, i);
}
mac_enable_int(vptr->mac_regs);
spin_unlock_irqrestore(&vptr->lock, flags);
netif_device_attach(vptr->netdev);
return 0 ;
}
#endif /* CONFIG_PM_SLEEP */
static SIMPLE_DEV_PM_OPS(velocity_pm_ops, velocity_suspend, velocity_resume);
/*
* Definition for our device driver . The PCI layer interface
* uses this to handle all our card discover and plugging
*/
static struct pci_driver velocity_pci_driver = {
.name = VELOCITY_NAME,
.id_table = velocity_pci_id_table,
.probe = velocity_pci_probe,
.remove = velocity_pci_remove,
.driver = {
.pm = &velocity_pm_ops,
},
};
static struct platform_driver velocity_platform_driver = {
.probe = velocity_platform_probe,
.remove = velocity_platform_remove,
.driver = {
.name = "via-velocity" ,
.of_match_table = velocity_of_ids,
.pm = &velocity_pm_ops,
},
};
/**
* velocity_ethtool_up - pre hook for ethtool
* @ dev : network device
*
* Called before an ethtool operation . We need to make sure the
* chip is out of D3 state before we poke at it . In case of ethtool
* ops nesting , only wake the device up in the outermost block .
*/
static int velocity_ethtool_up(struct net_device *dev)
{
struct velocity_info *vptr = netdev_priv(dev);
if (vptr->ethtool_ops_nesting == U32_MAX)
return -EBUSY;
if (!vptr->ethtool_ops_nesting++ && !netif_running(dev))
velocity_set_power_state(vptr, PCI_D0);
return 0 ;
}
/**
* velocity_ethtool_down - post hook for ethtool
* @ dev : network device
*
* Called after an ethtool operation . Restore the chip back to D3
* state if it isn ' t running . In case of ethtool ops nesting , only
* put the device to sleep in the outermost block .
*/
static void velocity_ethtool_down(struct net_device *dev)
{
struct velocity_info *vptr = netdev_priv(dev);
if (!--vptr->ethtool_ops_nesting && !netif_running(dev))
velocity_set_power_state(vptr, PCI_D3hot);
}
static int velocity_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *cmd)
{
struct velocity_info *vptr = netdev_priv(dev);
struct mac_regs __iomem *regs = vptr->mac_regs;
u32 status;
u32 supported, advertising;
status = check_connection_type(vptr->mac_regs);
supported = SUPPORTED_TP |
SUPPORTED_Autoneg |
SUPPORTED_10baseT_Half |
SUPPORTED_10baseT_Full |
SUPPORTED_100baseT_Half |
SUPPORTED_100baseT_Full |
SUPPORTED_1000baseT_Half |
SUPPORTED_1000baseT_Full;
advertising = ADVERTISED_TP | ADVERTISED_Autoneg;
if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
advertising |=
ADVERTISED_10baseT_Half |
ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half |
ADVERTISED_100baseT_Full |
ADVERTISED_1000baseT_Half |
ADVERTISED_1000baseT_Full;
} else {
switch (vptr->options.spd_dpx) {
case SPD_DPX_1000_FULL:
advertising |= ADVERTISED_1000baseT_Full;
break ;
case SPD_DPX_100_HALF:
advertising |= ADVERTISED_100baseT_Half;
break ;
case SPD_DPX_100_FULL:
advertising |= ADVERTISED_100baseT_Full;
break ;
case SPD_DPX_10_HALF:
advertising |= ADVERTISED_10baseT_Half;
break ;
case SPD_DPX_10_FULL:
advertising |= ADVERTISED_10baseT_Full;
break ;
default :
break ;
}
}
if (status & VELOCITY_SPEED_1000)
cmd->base.speed = SPEED_1000;
else if (status & VELOCITY_SPEED_100)
cmd->base.speed = SPEED_100;
else
cmd->base.speed = SPEED_10;
cmd->base.autoneg = (status & VELOCITY_AUTONEG_ENABLE) ?
AUTONEG_ENABLE : AUTONEG_DISABLE;
cmd->base.port = PORT_TP;
cmd->base.phy_address = readb(®s->MIIADR) & 0 x1F;
if (status & VELOCITY_DUPLEX_FULL)
cmd->base.duplex = DUPLEX_FULL;
else
cmd->base.duplex = DUPLEX_HALF;
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
supported);
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
advertising);
return 0 ;
}
static int velocity_set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *cmd)
{
struct velocity_info *vptr = netdev_priv(dev);
u32 speed = cmd->base.speed;
u32 curr_status;
u32 new_status = 0 ;
int ret = 0 ;
curr_status = check_connection_type(vptr->mac_regs);
curr_status &= (~VELOCITY_LINK_FAIL);
new_status |= ((cmd->base.autoneg) ? VELOCITY_AUTONEG_ENABLE : 0 );
new_status |= ((speed == SPEED_1000) ? VELOCITY_SPEED_1000 : 0 );
new_status |= ((speed == SPEED_100) ? VELOCITY_SPEED_100 : 0 );
new_status |= ((speed == SPEED_10) ? VELOCITY_SPEED_10 : 0 );
new_status |= ((cmd->base.duplex == DUPLEX_FULL) ?
VELOCITY_DUPLEX_FULL : 0 );
if ((new_status & VELOCITY_AUTONEG_ENABLE) &&
(new_status != (curr_status | VELOCITY_AUTONEG_ENABLE))) {
ret = -EINVAL;
} else {
enum speed_opt spd_dpx;
if (new_status & VELOCITY_AUTONEG_ENABLE)
spd_dpx = SPD_DPX_AUTO;
else if ((new_status & VELOCITY_SPEED_1000) &&
(new_status & VELOCITY_DUPLEX_FULL)) {
spd_dpx = SPD_DPX_1000_FULL;
} else if (new_status & VELOCITY_SPEED_100)
spd_dpx = (new_status & VELOCITY_DUPLEX_FULL) ?
SPD_DPX_100_FULL : SPD_DPX_100_HALF;
else if (new_status & VELOCITY_SPEED_10)
spd_dpx = (new_status & VELOCITY_DUPLEX_FULL) ?
SPD_DPX_10_FULL : SPD_DPX_10_HALF;
else
return -EOPNOTSUPP;
vptr->options.spd_dpx = spd_dpx;
velocity_set_media_mode(vptr, new_status);
}
return ret;
}
static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
struct velocity_info *vptr = netdev_priv(dev);
strscpy(info->driver, VELOCITY_NAME, sizeof (info->driver));
strscpy(info->version, VELOCITY_VERSION, sizeof (info->version));
if (vptr->pdev)
strscpy(info->bus_info, pci_name(vptr->pdev),
sizeof (info->bus_info));
else
strscpy(info->bus_info, "platform" , sizeof (info->bus_info));
}
static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct velocity_info *vptr = netdev_priv(dev);
wol->supported = WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP;
wol->wolopts |= WAKE_MAGIC;
/*
if ( vptr - > wol_opts & VELOCITY_WOL_PHY )
wol . wolopts | = WAKE_PHY ;
*/
if (vptr->wol_opts & VELOCITY_WOL_UCAST)
wol->wolopts |= WAKE_UCAST;
if (vptr->wol_opts & VELOCITY_WOL_ARP)
wol->wolopts |= WAKE_ARP;
memcpy(&wol->sopass, vptr->wol_passwd, 6 );
}
static int velocity_ethtool_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct velocity_info *vptr = netdev_priv(dev);
if (!(wol->wolopts & (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_ARP)))
return -EFAULT;
vptr->wol_opts = VELOCITY_WOL_MAGIC;
/*
if ( wol . wolopts & WAKE_PHY ) {
vptr - > wol_opts | = VELOCITY_WOL_PHY ;
vptr - > flags | = VELOCITY_FLAGS_WOL_ENABLED ;
}
*/
if (wol->wolopts & WAKE_MAGIC) {
vptr->wol_opts |= VELOCITY_WOL_MAGIC;
vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
}
if (wol->wolopts & WAKE_UCAST) {
vptr->wol_opts |= VELOCITY_WOL_UCAST;
vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
}
if (wol->wolopts & WAKE_ARP) {
vptr->wol_opts |= VELOCITY_WOL_ARP;
vptr->flags |= VELOCITY_FLAGS_WOL_ENABLED;
}
memcpy(vptr->wol_passwd, wol->sopass, 6 );
return 0 ;
}
static int get_pending_timer_val(int val)
{
int mult_bits = val >> 6 ;
int mult = 1 ;
switch (mult_bits)
{
case 1 :
mult = 4 ; break ;
case 2 :
mult = 16 ; break ;
case 3 :
mult = 64 ; break ;
case 0 :
default :
break ;
}
return (val & 0 x3f) * mult;
}
static void set_pending_timer_val(int *val, u32 us)
{
u8 mult = 0 ;
u8 shift = 0 ;
if (us >= 0 x3f) {
mult = 1 ; /* mult with 4 */
shift = 2 ;
}
if (us >= 0 x3f * 4 ) {
mult = 2 ; /* mult with 16 */
shift = 4 ;
}
if (us >= 0 x3f * 16 ) {
mult = 3 ; /* mult with 64 */
shift = 6 ;
}
*val = (mult << 6 ) | ((us >> shift) & 0 x3f);
}
static int velocity_get_coalesce(struct net_device *dev,
struct ethtool_coalesce *ecmd,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct velocity_info *vptr = netdev_priv(dev);
ecmd->tx_max_coalesced_frames = vptr->options.tx_intsup;
ecmd->rx_max_coalesced_frames = vptr->options.rx_intsup;
ecmd->rx_coalesce_usecs = get_pending_timer_val(vptr->options.rxqueue_timer);
ecmd->tx_coalesce_usecs = get_pending_timer_val(vptr->options.txqueue_timer);
return 0 ;
}
static int velocity_set_coalesce(struct net_device *dev,
struct ethtool_coalesce *ecmd,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct velocity_info *vptr = netdev_priv(dev);
int max_us = 0 x3f * 64 ;
unsigned long flags;
/* 6 bits of */
if (ecmd->tx_coalesce_usecs > max_us)
return -EINVAL;
if (ecmd->rx_coalesce_usecs > max_us)
return -EINVAL;
if (ecmd->tx_max_coalesced_frames > 0 xff)
return -EINVAL;
if (ecmd->rx_max_coalesced_frames > 0 xff)
return -EINVAL;
vptr->options.rx_intsup = ecmd->rx_max_coalesced_frames;
vptr->options.tx_intsup = ecmd->tx_max_coalesced_frames;
set_pending_timer_val(&vptr->options.rxqueue_timer,
ecmd->rx_coalesce_usecs);
set_pending_timer_val(&vptr->options.txqueue_timer,
ecmd->tx_coalesce_usecs);
/* Setup the interrupt suppression and queue timers */
spin_lock_irqsave(&vptr->lock, flags);
mac_disable_int(vptr->mac_regs);
setup_adaptive_interrupts(vptr);
setup_queue_timers(vptr);
mac_write_int_mask(vptr->int_mask, vptr->mac_regs);
mac_clear_isr(vptr->mac_regs);
mac_enable_int(vptr->mac_regs);
spin_unlock_irqrestore(&vptr->lock, flags);
return 0 ;
}
static const char velocity_gstrings[][ETH_GSTRING_LEN] = {
"rx_all" ,
"rx_ok" ,
"tx_ok" ,
"rx_error" ,
"rx_runt_ok" ,
"rx_runt_err" ,
"rx_64" ,
"tx_64" ,
"rx_65_to_127" ,
"tx_65_to_127" ,
"rx_128_to_255" ,
"tx_128_to_255" ,
"rx_256_to_511" ,
"tx_256_to_511" ,
"rx_512_to_1023" ,
"tx_512_to_1023" ,
"rx_1024_to_1518" ,
"tx_1024_to_1518" ,
"tx_ether_collisions" ,
"rx_crc_errors" ,
"rx_jumbo" ,
"tx_jumbo" ,
"rx_mac_control_frames" ,
"tx_mac_control_frames" ,
"rx_frame_alignment_errors" ,
"rx_long_ok" ,
"rx_long_err" ,
"tx_sqe_errors" ,
"rx_no_buf" ,
"rx_symbol_errors" ,
"in_range_length_errors" ,
"late_collisions"
};
static void velocity_get_strings(struct net_device *dev, u32 sset, u8 *data)
{
switch (sset) {
case ETH_SS_STATS:
memcpy(data, *velocity_gstrings, sizeof (velocity_gstrings));
break ;
}
}
static int velocity_get_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return ARRAY_SIZE(velocity_gstrings);
default :
return -EOPNOTSUPP;
}
}
static void velocity_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
if (netif_running(dev)) {
struct velocity_info *vptr = netdev_priv(dev);
u32 *p = vptr->mib_counter;
int i;
spin_lock_irq(&vptr->lock);
velocity_update_hw_mibs(vptr);
spin_unlock_irq(&vptr->lock);
for (i = 0 ; i < ARRAY_SIZE(velocity_gstrings); i++)
*data++ = *p++;
}
}
static const struct ethtool_ops velocity_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES,
.get_drvinfo = velocity_get_drvinfo,
.get_wol = velocity_ethtool_get_wol,
.set_wol = velocity_ethtool_set_wol,
.get_link = velocity_get_link,
.get_strings = velocity_get_strings,
.get_sset_count = velocity_get_sset_count,
.get_ethtool_stats = velocity_get_ethtool_stats,
.get_coalesce = velocity_get_coalesce,
.set_coalesce = velocity_set_coalesce,
.begin = velocity_ethtool_up,
.complete = velocity_ethtool_down,
.get_link_ksettings = velocity_get_link_ksettings,
.set_link_ksettings = velocity_set_link_ksettings,
};
#if defined (CONFIG_PM) && defined (CONFIG_INET)
static int velocity_netdev_event(struct notifier_block *nb, unsigned long notification, void *ptr)
{
struct in_ifaddr *ifa = ptr;
struct net_device *dev = ifa->ifa_dev->dev;
if (dev_net(dev) == &init_net &&
dev->netdev_ops == &velocity_netdev_ops)
velocity_get_ip(netdev_priv(dev));
return NOTIFY_DONE;
}
static struct notifier_block velocity_inetaddr_notifier = {
.notifier_call = velocity_netdev_event,
};
static void velocity_register_notifier(void )
{
register_inetaddr_notifier(&velocity_inetaddr_notifier);
}
static void velocity_unregister_notifier(void )
{
unregister_inetaddr_notifier(&velocity_inetaddr_notifier);
}
#else
#define velocity_register_notifier() do {} while (0 )
#define velocity_unregister_notifier() do {} while (0 )
#endif /* defined(CONFIG_PM) && defined(CONFIG_INET) */
/**
* velocity_init_module - load time function
*
* Called when the velocity module is loaded . The PCI driver
* is registered with the PCI layer , and in turn will call
* the probe functions for each velocity adapter installed
* in the system .
*/
static int __init velocity_init_module(void )
{
int ret_pci, ret_platform;
velocity_register_notifier();
ret_pci = pci_register_driver(&velocity_pci_driver);
ret_platform = platform_driver_register(&velocity_platform_driver);
/* if both_registers failed, remove the notifier */
if ((ret_pci < 0 ) && (ret_platform < 0 )) {
velocity_unregister_notifier();
return ret_pci;
}
return 0 ;
}
/**
* velocity_cleanup_module - module unload
*
* When the velocity hardware is unloaded this function is called .
* It will clean up the notifiers and the unregister the PCI
* driver interface for this hardware . This in turn cleans up
* all discovered interfaces before returning from the function
*/
static void __exit velocity_cleanup_module(void )
{
velocity_unregister_notifier();
pci_unregister_driver(&velocity_pci_driver);
platform_driver_unregister(&velocity_platform_driver);
}
module_init(velocity_init_module);
module_exit(velocity_cleanup_module);
Messung V0.5 in Prozent C=95 H=89 G=91
¤ Dauer der Verarbeitung: 0.86 Sekunden
(vorverarbeitet am 2026-10-01)
¤
*© Formatika GbR, Deutschland