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linux/drivers/net/sk98lin/skethtool.c
shemminger@osdl.org 09f5a21438 [PATCH] sk98lin: allow ethtool checksum on/off per port 
Allow control of checksumming parameters via ethtool.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-01 02:22:52 -05:00

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/******************************************************************************
*
* Name: skethtool.c
* Project: GEnesis, PCI Gigabit Ethernet Adapter
* Version: $Revision: 1.7 $
* Date: $Date: 2004/09/29 13:32:07 $
* Purpose: All functions regarding ethtool handling
*
******************************************************************************/
/******************************************************************************
*
* (C)Copyright 1998-2002 SysKonnect GmbH.
* (C)Copyright 2002-2004 Marvell.
*
* Driver for Marvell Yukon/2 chipset and SysKonnect Gigabit Ethernet
* Server Adapters.
*
* Author: Ralph Roesler (rroesler@syskonnect.de)
* Mirko Lindner (mlindner@syskonnect.de)
*
* Address all question to: linux@syskonnect.de
*
* The technical manual for the adapters is available from SysKonnect's
* web pages: www.syskonnect.com
*
* 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.
*
* The information in this file is provided "AS IS" without warranty.
*
*****************************************************************************/
#include "h/skdrv1st.h"
#include "h/skdrv2nd.h"
#include "h/skversion.h"
#include <linux/ethtool.h>
#include <linux/timer.h>
#include <linux/delay.h>
/******************************************************************************
*
* Defines
*
*****************************************************************************/
#define SUPP_COPPER_ALL (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | \
SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | \
SUPPORTED_1000baseT_Half| SUPPORTED_1000baseT_Full| \
SUPPORTED_TP)
#define ADV_COPPER_ALL (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
ADVERTISED_1000baseT_Half| ADVERTISED_1000baseT_Full| \
ADVERTISED_TP)
#define SUPP_FIBRE_ALL (SUPPORTED_1000baseT_Full | \
SUPPORTED_FIBRE | \
SUPPORTED_Autoneg)
#define ADV_FIBRE_ALL (ADVERTISED_1000baseT_Full | \
ADVERTISED_FIBRE | \
ADVERTISED_Autoneg)
/******************************************************************************
*
* Local Functions
*
*****************************************************************************/
/*****************************************************************************
*
* getSettings - retrieves the current settings of the selected adapter
*
* Description:
* The current configuration of the selected adapter is returned.
* This configuration involves a)speed, b)duplex and c)autoneg plus
* a number of other variables.
*
* Returns: always 0
*
*/
static int getSettings(struct net_device *dev, struct ethtool_cmd *ecmd)
{
const DEV_NET *pNet = netdev_priv(dev);
int port = pNet->PortNr;
const SK_AC *pAC = pNet->pAC;
const SK_GEPORT *pPort = &pAC->GIni.GP[port];
static int DuplexAutoNegConfMap[9][3]= {
{ -1 , -1 , -1 },
{ 0 , -1 , -1 },
{ SK_LMODE_HALF , DUPLEX_HALF, AUTONEG_DISABLE },
{ SK_LMODE_FULL , DUPLEX_FULL, AUTONEG_DISABLE },
{ SK_LMODE_AUTOHALF , DUPLEX_HALF, AUTONEG_ENABLE },
{ SK_LMODE_AUTOFULL , DUPLEX_FULL, AUTONEG_ENABLE },
{ SK_LMODE_AUTOBOTH , DUPLEX_FULL, AUTONEG_ENABLE },
{ SK_LMODE_AUTOSENSE , -1 , -1 },
{ SK_LMODE_INDETERMINATED, -1 , -1 }
};
static int SpeedConfMap[6][2] = {
{ 0 , -1 },
{ SK_LSPEED_AUTO , -1 },
{ SK_LSPEED_10MBPS , SPEED_10 },
{ SK_LSPEED_100MBPS , SPEED_100 },
{ SK_LSPEED_1000MBPS , SPEED_1000 },
{ SK_LSPEED_INDETERMINATED, -1 }
};
static int AdvSpeedMap[6][2] = {
{ 0 , -1 },
{ SK_LSPEED_AUTO , -1 },
{ SK_LSPEED_10MBPS , ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full },
{ SK_LSPEED_100MBPS , ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full },
{ SK_LSPEED_1000MBPS , ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full},
{ SK_LSPEED_INDETERMINATED, -1 }
};
ecmd->phy_address = port;
ecmd->speed = SpeedConfMap[pPort->PLinkSpeedUsed][1];
ecmd->duplex = DuplexAutoNegConfMap[pPort->PLinkModeStatus][1];
ecmd->autoneg = DuplexAutoNegConfMap[pPort->PLinkModeStatus][2];
ecmd->transceiver = XCVR_INTERNAL;
if (pAC->GIni.GICopperType) {
ecmd->port = PORT_TP;
ecmd->supported = (SUPP_COPPER_ALL|SUPPORTED_Autoneg);
if (pAC->GIni.GIGenesis) {
ecmd->supported &= ~(SUPPORTED_10baseT_Half);
ecmd->supported &= ~(SUPPORTED_10baseT_Full);
ecmd->supported &= ~(SUPPORTED_100baseT_Half);
ecmd->supported &= ~(SUPPORTED_100baseT_Full);
} else {
if (pAC->GIni.GIChipId == CHIP_ID_YUKON) {
ecmd->supported &= ~(SUPPORTED_1000baseT_Half);
}
#ifdef CHIP_ID_YUKON_FE
if (pAC->GIni.GIChipId == CHIP_ID_YUKON_FE) {
ecmd->supported &= ~(SUPPORTED_1000baseT_Half);
ecmd->supported &= ~(SUPPORTED_1000baseT_Full);
}
#endif
}
if (pAC->GIni.GP[0].PLinkSpeed != SK_LSPEED_AUTO) {
ecmd->advertising = AdvSpeedMap[pPort->PLinkSpeed][1];
if (pAC->GIni.GIChipId == CHIP_ID_YUKON) {
ecmd->advertising &= ~(SUPPORTED_1000baseT_Half);
}
} else {
ecmd->advertising = ecmd->supported;
}
if (ecmd->autoneg == AUTONEG_ENABLE)
ecmd->advertising |= ADVERTISED_Autoneg;
} else {
ecmd->port = PORT_FIBRE;
ecmd->supported = SUPP_FIBRE_ALL;
ecmd->advertising = ADV_FIBRE_ALL;
}
return 0;
}
/*
* MIB infrastructure uses instance value starting at 1
* based on board and port.
*/
static inline u32 pnmiInstance(const DEV_NET *pNet)
{
return 1 + (pNet->pAC->RlmtNets == 2) + pNet->PortNr;
}
/*****************************************************************************
*
* setSettings - configures the settings of a selected adapter
*
* Description:
* Possible settings that may be altered are a)speed, b)duplex or
* c)autonegotiation.
*
* Returns:
* 0: everything fine, no error
* <0: the return value is the error code of the failure
*/
static int setSettings(struct net_device *dev, struct ethtool_cmd *ecmd)
{
DEV_NET *pNet = netdev_priv(dev);
SK_AC *pAC = pNet->pAC;
u32 instance;
char buf[4];
int len = 1;
if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100
&& ecmd->speed != SPEED_1000)
return -EINVAL;
if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
return -EINVAL;
if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE)
return -EINVAL;
if (ecmd->autoneg == AUTONEG_DISABLE)
*buf = (ecmd->duplex == DUPLEX_FULL)
? SK_LMODE_FULL : SK_LMODE_HALF;
else
*buf = (ecmd->duplex == DUPLEX_FULL)
? SK_LMODE_AUTOFULL : SK_LMODE_AUTOHALF;
instance = pnmiInstance(pNet);
if (SkPnmiSetVar(pAC, pAC->IoBase, OID_SKGE_LINK_MODE,
&buf, &len, instance, pNet->NetNr) != SK_PNMI_ERR_OK)
return -EINVAL;
switch(ecmd->speed) {
case SPEED_1000:
*buf = SK_LSPEED_1000MBPS;
break;
case SPEED_100:
*buf = SK_LSPEED_100MBPS;
break;
case SPEED_10:
*buf = SK_LSPEED_10MBPS;
}
if (SkPnmiSetVar(pAC, pAC->IoBase, OID_SKGE_SPEED_MODE,
&buf, &len, instance, pNet->NetNr) != SK_PNMI_ERR_OK)
return -EINVAL;
return 0;
}
/*****************************************************************************
*
* getDriverInfo - returns generic driver and adapter information
*
* Description:
* Generic driver information is returned via this function, such as
* the name of the driver, its version and and firmware version.
* In addition to this, the location of the selected adapter is
* returned as a bus info string (e.g. '01:05.0').
*
* Returns: N/A
*
*/
static void getDriverInfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
const DEV_NET *pNet = netdev_priv(dev);
const SK_AC *pAC = pNet->pAC;
char vers[32];
snprintf(vers, sizeof(vers)-1, VER_STRING "(v%d.%d)",
(pAC->GIni.GIPciHwRev >> 4) & 0xf, pAC->GIni.GIPciHwRev & 0xf);
strlcpy(info->driver, DRIVER_FILE_NAME, sizeof(info->driver));
strcpy(info->version, vers);
strcpy(info->fw_version, "N/A");
strlcpy(info->bus_info, pci_name(pAC->PciDev), ETHTOOL_BUSINFO_LEN);
}
/*
* Ethtool statistics support.
*/
static const char StringsStats[][ETH_GSTRING_LEN] = {
"rx_packets", "tx_packets",
"rx_bytes", "tx_bytes",
"rx_errors", "tx_errors",
"rx_dropped", "tx_dropped",
"multicasts", "collisions",
"rx_length_errors", "rx_buffer_overflow_errors",
"rx_crc_errors", "rx_frame_errors",
"rx_too_short_errors", "rx_too_long_errors",
"rx_carrier_extension_errors", "rx_symbol_errors",
"rx_llc_mac_size_errors", "rx_carrier_errors",
"rx_jabber_errors", "rx_missed_errors",
"tx_abort_collision_errors", "tx_carrier_errors",
"tx_buffer_underrun_errors", "tx_heartbeat_errors",
"tx_window_errors",
};
static int getStatsCount(struct net_device *dev)
{
return ARRAY_SIZE(StringsStats);
}
static void getStrings(struct net_device *dev, u32 stringset, u8 *data)
{
switch(stringset) {
case ETH_SS_STATS:
memcpy(data, *StringsStats, sizeof(StringsStats));
break;
}
}
static void getEthtoolStats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
const DEV_NET *pNet = netdev_priv(dev);
const SK_AC *pAC = pNet->pAC;
const SK_PNMI_STRUCT_DATA *pPnmiStruct = &pAC->PnmiStruct;
*data++ = pPnmiStruct->Stat[0].StatRxOkCts;
*data++ = pPnmiStruct->Stat[0].StatTxOkCts;
*data++ = pPnmiStruct->Stat[0].StatRxOctetsOkCts;
*data++ = pPnmiStruct->Stat[0].StatTxOctetsOkCts;
*data++ = pPnmiStruct->InErrorsCts;
*data++ = pPnmiStruct->Stat[0].StatTxSingleCollisionCts;
*data++ = pPnmiStruct->RxNoBufCts;
*data++ = pPnmiStruct->TxNoBufCts;
*data++ = pPnmiStruct->Stat[0].StatRxMulticastOkCts;
*data++ = pPnmiStruct->Stat[0].StatTxSingleCollisionCts;
*data++ = pPnmiStruct->Stat[0].StatRxRuntCts;
*data++ = pPnmiStruct->Stat[0].StatRxFifoOverflowCts;
*data++ = pPnmiStruct->Stat[0].StatRxFcsCts;
*data++ = pPnmiStruct->Stat[0].StatRxFramingCts;
*data++ = pPnmiStruct->Stat[0].StatRxShortsCts;
*data++ = pPnmiStruct->Stat[0].StatRxTooLongCts;
*data++ = pPnmiStruct->Stat[0].StatRxCextCts;
*data++ = pPnmiStruct->Stat[0].StatRxSymbolCts;
*data++ = pPnmiStruct->Stat[0].StatRxIRLengthCts;
*data++ = pPnmiStruct->Stat[0].StatRxCarrierCts;
*data++ = pPnmiStruct->Stat[0].StatRxJabberCts;
*data++ = pPnmiStruct->Stat[0].StatRxMissedCts;
*data++ = pAC->stats.tx_aborted_errors;
*data++ = pPnmiStruct->Stat[0].StatTxCarrierCts;
*data++ = pPnmiStruct->Stat[0].StatTxFifoUnderrunCts;
*data++ = pPnmiStruct->Stat[0].StatTxCarrierCts;
*data++ = pAC->stats.tx_window_errors;
}
/*****************************************************************************
*
* toggleLeds - Changes the LED state of an adapter
*
* Description:
* This function changes the current state of all LEDs of an adapter so
* that it can be located by a user.
*
* Returns: N/A
*
*/
static void toggleLeds(DEV_NET *pNet, int on)
{
SK_AC *pAC = pNet->pAC;
int port = pNet->PortNr;
void __iomem *io = pAC->IoBase;
if (pAC->GIni.GIGenesis) {
SK_OUT8(io, MR_ADDR(port,LNK_LED_REG),
on ? SK_LNK_ON : SK_LNK_OFF);
SkGeYellowLED(pAC, io,
on ? (LED_ON >> 1) : (LED_OFF >> 1));
SkGeXmitLED(pAC, io, MR_ADDR(port,RX_LED_INI),
on ? SK_LED_TST : SK_LED_DIS);
if (pAC->GIni.GP[port].PhyType == SK_PHY_BCOM)
SkXmPhyWrite(pAC, io, port, PHY_BCOM_P_EXT_CTRL,
on ? PHY_B_PEC_LED_ON : PHY_B_PEC_LED_OFF);
else if (pAC->GIni.GP[port].PhyType == SK_PHY_LONE)
SkXmPhyWrite(pAC, io, port, PHY_LONE_LED_CFG,
on ? 0x0800 : PHY_L_LC_LEDT);
else
SkGeXmitLED(pAC, io, MR_ADDR(port,TX_LED_INI),
on ? SK_LED_TST : SK_LED_DIS);
} else {
const u16 YukLedOn = (PHY_M_LED_MO_DUP(MO_LED_ON) |
PHY_M_LED_MO_10(MO_LED_ON) |
PHY_M_LED_MO_100(MO_LED_ON) |
PHY_M_LED_MO_1000(MO_LED_ON) |
PHY_M_LED_MO_RX(MO_LED_ON));
const u16 YukLedOff = (PHY_M_LED_MO_DUP(MO_LED_OFF) |
PHY_M_LED_MO_10(MO_LED_OFF) |
PHY_M_LED_MO_100(MO_LED_OFF) |
PHY_M_LED_MO_1000(MO_LED_OFF) |
PHY_M_LED_MO_RX(MO_LED_OFF));
SkGmPhyWrite(pAC,io,port,PHY_MARV_LED_CTRL,0);
SkGmPhyWrite(pAC,io,port,PHY_MARV_LED_OVER,
on ? YukLedOn : YukLedOff);
}
}
/*****************************************************************************
*
* skGeBlinkTimer - Changes the LED state of an adapter
*
* Description:
* This function changes the current state of all LEDs of an adapter so
* that it can be located by a user. If the requested time interval for
* this test has elapsed, this function cleans up everything that was
* temporarily setup during the locate NIC test. This involves of course
* also closing or opening any adapter so that the initial board state
* is recovered.
*
* Returns: N/A
*
*/
void SkGeBlinkTimer(unsigned long data)
{
struct net_device *dev = (struct net_device *) data;
DEV_NET *pNet = netdev_priv(dev);
SK_AC *pAC = pNet->pAC;
toggleLeds(pNet, pAC->LedsOn);
pAC->LedsOn = !pAC->LedsOn;
mod_timer(&pAC->BlinkTimer, jiffies + HZ/4);
}
/*****************************************************************************
*
* locateDevice - start the locate NIC feature of the elected adapter
*
* Description:
* This function is used if the user want to locate a particular NIC.
* All LEDs are regularly switched on and off, so the NIC can easily
* be identified.
*
* Returns:
* ==0: everything fine, no error, locateNIC test was started
* !=0: one locateNIC test runs already
*
*/
static int locateDevice(struct net_device *dev, u32 data)
{
DEV_NET *pNet = netdev_priv(dev);
SK_AC *pAC = pNet->pAC;
if(!data || data > (u32)(MAX_SCHEDULE_TIMEOUT / HZ))
data = (u32)(MAX_SCHEDULE_TIMEOUT / HZ);
/* start blinking */
pAC->LedsOn = 0;
mod_timer(&pAC->BlinkTimer, jiffies);
msleep_interruptible(data * 1000);
del_timer_sync(&pAC->BlinkTimer);
toggleLeds(pNet, 0);
return 0;
}
/*****************************************************************************
*
* getPauseParams - retrieves the pause parameters
*
* Description:
* All current pause parameters of a selected adapter are placed
* in the passed ethtool_pauseparam structure and are returned.
*
* Returns: N/A
*
*/
static void getPauseParams(struct net_device *dev, struct ethtool_pauseparam *epause)
{
DEV_NET *pNet = netdev_priv(dev);
SK_AC *pAC = pNet->pAC;
SK_GEPORT *pPort = &pAC->GIni.GP[pNet->PortNr];
epause->rx_pause = (pPort->PFlowCtrlMode == SK_FLOW_MODE_SYMMETRIC) ||
(pPort->PFlowCtrlMode == SK_FLOW_MODE_SYM_OR_REM);
epause->tx_pause = epause->rx_pause || (pPort->PFlowCtrlMode == SK_FLOW_MODE_LOC_SEND);
epause->autoneg = epause->rx_pause || epause->tx_pause;
}
/*****************************************************************************
*
* setPauseParams - configures the pause parameters of an adapter
*
* Description:
* This function sets the Rx or Tx pause parameters
*
* Returns:
* ==0: everything fine, no error
* !=0: the return value is the error code of the failure
*/
static int setPauseParams(struct net_device *dev , struct ethtool_pauseparam *epause)
{
DEV_NET *pNet = netdev_priv(dev);
SK_AC *pAC = pNet->pAC;
SK_GEPORT *pPort = &pAC->GIni.GP[pNet->PortNr];
u32 instance = pnmiInstance(pNet);
struct ethtool_pauseparam old;
u8 oldspeed = pPort->PLinkSpeedUsed;
char buf[4];
int len = 1;
int ret;
/*
** we have to determine the current settings to see if
** the operator requested any modification of the flow
** control parameters...
*/
getPauseParams(dev, &old);
/*
** perform modifications regarding the changes
** requested by the operator
*/
if (epause->autoneg != old.autoneg)
*buf = epause->autoneg ? SK_FLOW_MODE_NONE : SK_FLOW_MODE_SYMMETRIC;
else {
if (epause->rx_pause && epause->tx_pause)
*buf = SK_FLOW_MODE_SYMMETRIC;
else if (epause->rx_pause && !epause->tx_pause)
*buf = SK_FLOW_MODE_SYM_OR_REM;
else if (!epause->rx_pause && epause->tx_pause)
*buf = SK_FLOW_MODE_LOC_SEND;
else
*buf = SK_FLOW_MODE_NONE;
}
ret = SkPnmiSetVar(pAC, pAC->IoBase, OID_SKGE_FLOWCTRL_MODE,
&buf, &len, instance, pNet->NetNr);
if (ret != SK_PNMI_ERR_OK) {
SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_CTRL,
("ethtool (sk98lin): error changing rx/tx pause (%i)\n", ret));
goto err;
}
/*
** It may be that autoneg has been disabled! Therefore
** set the speed to the previously used value...
*/
if (!epause->autoneg) {
len = 1;
ret = SkPnmiSetVar(pAC, pAC->IoBase, OID_SKGE_SPEED_MODE,
&oldspeed, &len, instance, pNet->NetNr);
if (ret != SK_PNMI_ERR_OK)
SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_CTRL,
("ethtool (sk98lin): error setting speed (%i)\n", ret));
}
err:
return ret ? -EIO : 0;
}
/* Only Yukon supports checksum offload. */
static int setScatterGather(struct net_device *dev, u32 data)
{
DEV_NET *pNet = netdev_priv(dev);
SK_AC *pAC = pNet->pAC;
if (pAC->GIni.GIChipId == CHIP_ID_GENESIS)
return -EOPNOTSUPP;
return ethtool_op_set_sg(dev, data);
}
static int setTxCsum(struct net_device *dev, u32 data)
{
DEV_NET *pNet = netdev_priv(dev);
SK_AC *pAC = pNet->pAC;
if (pAC->GIni.GIChipId == CHIP_ID_GENESIS)
return -EOPNOTSUPP;
return ethtool_op_set_tx_csum(dev, data);
}
static u32 getRxCsum(struct net_device *dev)
{
DEV_NET *pNet = netdev_priv(dev);
SK_AC *pAC = pNet->pAC;
return pAC->RxPort[pNet->PortNr].RxCsum;
}
static int setRxCsum(struct net_device *dev, u32 data)
{
DEV_NET *pNet = netdev_priv(dev);
SK_AC *pAC = pNet->pAC;
if (pAC->GIni.GIChipId == CHIP_ID_GENESIS)
return -EOPNOTSUPP;
pAC->RxPort[pNet->PortNr].RxCsum = data != 0;
return 0;
}
struct ethtool_ops SkGeEthtoolOps = {
.get_settings = getSettings,
.set_settings = setSettings,
.get_drvinfo = getDriverInfo,
.get_strings = getStrings,
.get_stats_count = getStatsCount,
.get_ethtool_stats = getEthtoolStats,
.phys_id = locateDevice,
.get_pauseparam = getPauseParams,
.set_pauseparam = setPauseParams,
.get_link = ethtool_op_get_link,
.get_perm_addr = ethtool_op_get_perm_addr,
.get_sg = ethtool_op_get_sg,
.set_sg = setScatterGather,
.get_tx_csum = ethtool_op_get_tx_csum,
.set_tx_csum = setTxCsum,
.get_rx_csum = getRxCsum,
.set_rx_csum = setRxCsum,
};
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