kernel-ark/drivers/net/stmmac/stmmac_ethtool.c
Michał Mirosław 7903264402 net: Fix too optimistic NETIF_F_HW_CSUM features
NETIF_F_HW_CSUM is a superset of NETIF_F_IP_CSUM+NETIF_F_IPV6_CSUM, but
some drivers miss the difference. Fix this and also fix UFO dependency
on checksumming offload as it makes the same mistake in assumptions.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Jon Mason <jon.mason@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-06 12:59:04 -08:00

381 lines
9.7 KiB
C

/*******************************************************************************
STMMAC Ethtool support
Copyright (C) 2007-2009 STMicroelectronics Ltd
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
version 2, as published by the Free Software Foundation.
This program is distributed in the hope it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
The full GNU General Public License is included in this distribution in
the file called "COPYING".
Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*******************************************************************************/
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include "stmmac.h"
#include "dwmac_dma.h"
#define REG_SPACE_SIZE 0x1054
#define MAC100_ETHTOOL_NAME "st_mac100"
#define GMAC_ETHTOOL_NAME "st_gmac"
struct stmmac_stats {
char stat_string[ETH_GSTRING_LEN];
int sizeof_stat;
int stat_offset;
};
#define STMMAC_STAT(m) \
{ #m, FIELD_SIZEOF(struct stmmac_extra_stats, m), \
offsetof(struct stmmac_priv, xstats.m)}
static const struct stmmac_stats stmmac_gstrings_stats[] = {
STMMAC_STAT(tx_underflow),
STMMAC_STAT(tx_carrier),
STMMAC_STAT(tx_losscarrier),
STMMAC_STAT(tx_heartbeat),
STMMAC_STAT(tx_deferred),
STMMAC_STAT(tx_vlan),
STMMAC_STAT(rx_vlan),
STMMAC_STAT(tx_jabber),
STMMAC_STAT(tx_frame_flushed),
STMMAC_STAT(tx_payload_error),
STMMAC_STAT(tx_ip_header_error),
STMMAC_STAT(rx_desc),
STMMAC_STAT(rx_partial),
STMMAC_STAT(rx_runt),
STMMAC_STAT(rx_toolong),
STMMAC_STAT(rx_collision),
STMMAC_STAT(rx_crc),
STMMAC_STAT(rx_length),
STMMAC_STAT(rx_mii),
STMMAC_STAT(rx_multicast),
STMMAC_STAT(rx_gmac_overflow),
STMMAC_STAT(rx_watchdog),
STMMAC_STAT(da_rx_filter_fail),
STMMAC_STAT(sa_rx_filter_fail),
STMMAC_STAT(rx_missed_cntr),
STMMAC_STAT(rx_overflow_cntr),
STMMAC_STAT(tx_undeflow_irq),
STMMAC_STAT(tx_process_stopped_irq),
STMMAC_STAT(tx_jabber_irq),
STMMAC_STAT(rx_overflow_irq),
STMMAC_STAT(rx_buf_unav_irq),
STMMAC_STAT(rx_process_stopped_irq),
STMMAC_STAT(rx_watchdog_irq),
STMMAC_STAT(tx_early_irq),
STMMAC_STAT(fatal_bus_error_irq),
STMMAC_STAT(threshold),
STMMAC_STAT(tx_pkt_n),
STMMAC_STAT(rx_pkt_n),
STMMAC_STAT(poll_n),
STMMAC_STAT(sched_timer_n),
STMMAC_STAT(normal_irq_n),
};
#define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
struct stmmac_priv *priv = netdev_priv(dev);
if (!priv->plat->has_gmac)
strcpy(info->driver, MAC100_ETHTOOL_NAME);
else
strcpy(info->driver, GMAC_ETHTOOL_NAME);
strcpy(info->version, DRV_MODULE_VERSION);
info->fw_version[0] = '\0';
info->n_stats = STMMAC_STATS_LEN;
}
static int stmmac_ethtool_getsettings(struct net_device *dev,
struct ethtool_cmd *cmd)
{
struct stmmac_priv *priv = netdev_priv(dev);
struct phy_device *phy = priv->phydev;
int rc;
if (phy == NULL) {
pr_err("%s: %s: PHY is not registered\n",
__func__, dev->name);
return -ENODEV;
}
if (!netif_running(dev)) {
pr_err("%s: interface is disabled: we cannot track "
"link speed / duplex setting\n", dev->name);
return -EBUSY;
}
cmd->transceiver = XCVR_INTERNAL;
spin_lock_irq(&priv->lock);
rc = phy_ethtool_gset(phy, cmd);
spin_unlock_irq(&priv->lock);
return rc;
}
static int stmmac_ethtool_setsettings(struct net_device *dev,
struct ethtool_cmd *cmd)
{
struct stmmac_priv *priv = netdev_priv(dev);
struct phy_device *phy = priv->phydev;
int rc;
spin_lock(&priv->lock);
rc = phy_ethtool_sset(phy, cmd);
spin_unlock(&priv->lock);
return rc;
}
static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
{
struct stmmac_priv *priv = netdev_priv(dev);
return priv->msg_enable;
}
static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
{
struct stmmac_priv *priv = netdev_priv(dev);
priv->msg_enable = level;
}
static int stmmac_check_if_running(struct net_device *dev)
{
if (!netif_running(dev))
return -EBUSY;
return 0;
}
static int stmmac_ethtool_get_regs_len(struct net_device *dev)
{
return REG_SPACE_SIZE;
}
static void stmmac_ethtool_gregs(struct net_device *dev,
struct ethtool_regs *regs, void *space)
{
int i;
u32 *reg_space = (u32 *) space;
struct stmmac_priv *priv = netdev_priv(dev);
memset(reg_space, 0x0, REG_SPACE_SIZE);
if (!priv->plat->has_gmac) {
/* MAC registers */
for (i = 0; i < 12; i++)
reg_space[i] = readl(priv->ioaddr + (i * 4));
/* DMA registers */
for (i = 0; i < 9; i++)
reg_space[i + 12] =
readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
reg_space[22] = readl(priv->ioaddr + DMA_CUR_TX_BUF_ADDR);
reg_space[23] = readl(priv->ioaddr + DMA_CUR_RX_BUF_ADDR);
} else {
/* MAC registers */
for (i = 0; i < 55; i++)
reg_space[i] = readl(priv->ioaddr + (i * 4));
/* DMA registers */
for (i = 0; i < 22; i++)
reg_space[i + 55] =
readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
}
}
static u32 stmmac_ethtool_get_rx_csum(struct net_device *dev)
{
struct stmmac_priv *priv = netdev_priv(dev);
return priv->rx_coe;
}
static void
stmmac_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct stmmac_priv *priv = netdev_priv(netdev);
spin_lock(&priv->lock);
pause->rx_pause = 0;
pause->tx_pause = 0;
pause->autoneg = priv->phydev->autoneg;
if (priv->flow_ctrl & FLOW_RX)
pause->rx_pause = 1;
if (priv->flow_ctrl & FLOW_TX)
pause->tx_pause = 1;
spin_unlock(&priv->lock);
}
static int
stmmac_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct stmmac_priv *priv = netdev_priv(netdev);
struct phy_device *phy = priv->phydev;
int new_pause = FLOW_OFF;
int ret = 0;
spin_lock(&priv->lock);
if (pause->rx_pause)
new_pause |= FLOW_RX;
if (pause->tx_pause)
new_pause |= FLOW_TX;
priv->flow_ctrl = new_pause;
if (phy->autoneg) {
if (netif_running(netdev)) {
struct ethtool_cmd cmd;
/* auto-negotiation automatically restarted */
cmd.cmd = ETHTOOL_NWAY_RST;
cmd.supported = phy->supported;
cmd.advertising = phy->advertising;
cmd.autoneg = phy->autoneg;
cmd.speed = phy->speed;
cmd.duplex = phy->duplex;
cmd.phy_address = phy->addr;
ret = phy_ethtool_sset(phy, &cmd);
}
} else
priv->hw->mac->flow_ctrl(priv->ioaddr, phy->duplex,
priv->flow_ctrl, priv->pause);
spin_unlock(&priv->lock);
return ret;
}
static void stmmac_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *dummy, u64 *data)
{
struct stmmac_priv *priv = netdev_priv(dev);
int i;
/* Update HW stats if supported */
priv->hw->dma->dma_diagnostic_fr(&dev->stats, (void *) &priv->xstats,
priv->ioaddr);
for (i = 0; i < STMMAC_STATS_LEN; i++) {
char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
data[i] = (stmmac_gstrings_stats[i].sizeof_stat ==
sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
}
}
static int stmmac_get_sset_count(struct net_device *netdev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return STMMAC_STATS_LEN;
default:
return -EOPNOTSUPP;
}
}
static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
{
int i;
u8 *p = data;
switch (stringset) {
case ETH_SS_STATS:
for (i = 0; i < STMMAC_STATS_LEN; i++) {
memcpy(p, stmmac_gstrings_stats[i].stat_string,
ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
break;
default:
WARN_ON(1);
break;
}
}
/* Currently only support WOL through Magic packet. */
static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct stmmac_priv *priv = netdev_priv(dev);
spin_lock_irq(&priv->lock);
if (device_can_wakeup(priv->device)) {
wol->supported = WAKE_MAGIC;
wol->wolopts = priv->wolopts;
}
spin_unlock_irq(&priv->lock);
}
static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct stmmac_priv *priv = netdev_priv(dev);
u32 support = WAKE_MAGIC;
if (!device_can_wakeup(priv->device))
return -EINVAL;
if (wol->wolopts & ~support)
return -EINVAL;
if (wol->wolopts) {
pr_info("stmmac: wakeup enable\n");
device_set_wakeup_enable(priv->device, 1);
enable_irq_wake(dev->irq);
} else {
device_set_wakeup_enable(priv->device, 0);
disable_irq_wake(dev->irq);
}
spin_lock_irq(&priv->lock);
priv->wolopts = wol->wolopts;
spin_unlock_irq(&priv->lock);
return 0;
}
static struct ethtool_ops stmmac_ethtool_ops = {
.begin = stmmac_check_if_running,
.get_drvinfo = stmmac_ethtool_getdrvinfo,
.get_settings = stmmac_ethtool_getsettings,
.set_settings = stmmac_ethtool_setsettings,
.get_msglevel = stmmac_ethtool_getmsglevel,
.set_msglevel = stmmac_ethtool_setmsglevel,
.get_regs = stmmac_ethtool_gregs,
.get_regs_len = stmmac_ethtool_get_regs_len,
.get_link = ethtool_op_get_link,
.get_rx_csum = stmmac_ethtool_get_rx_csum,
.get_tx_csum = ethtool_op_get_tx_csum,
.set_tx_csum = ethtool_op_set_tx_ipv6_csum,
.get_sg = ethtool_op_get_sg,
.set_sg = ethtool_op_set_sg,
.get_pauseparam = stmmac_get_pauseparam,
.set_pauseparam = stmmac_set_pauseparam,
.get_ethtool_stats = stmmac_get_ethtool_stats,
.get_strings = stmmac_get_strings,
.get_wol = stmmac_get_wol,
.set_wol = stmmac_set_wol,
.get_sset_count = stmmac_get_sset_count,
.get_tso = ethtool_op_get_tso,
.set_tso = ethtool_op_set_tso,
};
void stmmac_set_ethtool_ops(struct net_device *netdev)
{
SET_ETHTOOL_OPS(netdev, &stmmac_ethtool_ops);
}