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linux-next/drivers/net/gianfar_ethtool.c
Tim Schmielau cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h 
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00

588 lines
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/*
* drivers/net/gianfar_ethtool.c
*
* Gianfar Ethernet Driver
* Ethtool support for Gianfar Enet
* Based on e1000 ethtool support
*
* Author: Andy Fleming
* Maintainer: Kumar Gala
*
* Copyright (c) 2003,2004 Freescale Semiconductor, Inc.
*
* This software may be used and distributed according to
* the terms of the GNU Public License, Version 2, incorporated herein
* by reference.
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <linux/module.h>
#include <linux/crc32.h>
#include <asm/types.h>
#include <asm/uaccess.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include "gianfar.h"
extern void gfar_start(struct net_device *dev);
extern int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit);
#define GFAR_MAX_COAL_USECS 0xffff
#define GFAR_MAX_COAL_FRAMES 0xff
static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
u64 * buf);
static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf);
static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo);
static char stat_gstrings[][ETH_GSTRING_LEN] = {
"rx-dropped-by-kernel",
"rx-large-frame-errors",
"rx-short-frame-errors",
"rx-non-octet-errors",
"rx-crc-errors",
"rx-overrun-errors",
"rx-busy-errors",
"rx-babbling-errors",
"rx-truncated-frames",
"ethernet-bus-error",
"tx-babbling-errors",
"tx-underrun-errors",
"rx-skb-missing-errors",
"tx-timeout-errors",
"tx-rx-64-frames",
"tx-rx-65-127-frames",
"tx-rx-128-255-frames",
"tx-rx-256-511-frames",
"tx-rx-512-1023-frames",
"tx-rx-1024-1518-frames",
"tx-rx-1519-1522-good-vlan",
"rx-bytes",
"rx-packets",
"rx-fcs-errors",
"receive-multicast-packet",
"receive-broadcast-packet",
"rx-control-frame-packets",
"rx-pause-frame-packets",
"rx-unknown-op-code",
"rx-alignment-error",
"rx-frame-length-error",
"rx-code-error",
"rx-carrier-sense-error",
"rx-undersize-packets",
"rx-oversize-packets",
"rx-fragmented-frames",
"rx-jabber-frames",
"rx-dropped-frames",
"tx-byte-counter",
"tx-packets",
"tx-multicast-packets",
"tx-broadcast-packets",
"tx-pause-control-frames",
"tx-deferral-packets",
"tx-excessive-deferral-packets",
"tx-single-collision-packets",
"tx-multiple-collision-packets",
"tx-late-collision-packets",
"tx-excessive-collision-packets",
"tx-total-collision",
"reserved",
"tx-dropped-frames",
"tx-jabber-frames",
"tx-fcs-errors",
"tx-control-frames",
"tx-oversize-frames",
"tx-undersize-frames",
"tx-fragmented-frames",
};
/* Fill in a buffer with the strings which correspond to the
* stats */
static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
{
struct gfar_private *priv = netdev_priv(dev);
if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);
else
memcpy(buf, stat_gstrings,
GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);
}
/* Fill in an array of 64-bit statistics from various sources.
* This array will be appended to the end of the ethtool_stats
* structure, and returned to user space
*/
static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf)
{
int i;
struct gfar_private *priv = netdev_priv(dev);
u64 *extra = (u64 *) & priv->extra_stats;
if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
u32 __iomem *rmon = (u32 __iomem *) & priv->regs->rmon;
struct gfar_stats *stats = (struct gfar_stats *) buf;
for (i = 0; i < GFAR_RMON_LEN; i++)
stats->rmon[i] = (u64) gfar_read(&rmon[i]);
for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
stats->extra[i] = extra[i];
} else
for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
buf[i] = extra[i];
}
/* Returns the number of stats (and their corresponding strings) */
static int gfar_stats_count(struct net_device *dev)
{
struct gfar_private *priv = netdev_priv(dev);
if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
return GFAR_STATS_LEN;
else
return GFAR_EXTRA_STATS_LEN;
}
/* Fills in the drvinfo structure with some basic info */
static void gfar_gdrvinfo(struct net_device *dev, struct
ethtool_drvinfo *drvinfo)
{
strncpy(drvinfo->driver, DRV_NAME, GFAR_INFOSTR_LEN);
strncpy(drvinfo->version, gfar_driver_version, GFAR_INFOSTR_LEN);
strncpy(drvinfo->fw_version, "N/A", GFAR_INFOSTR_LEN);
strncpy(drvinfo->bus_info, "N/A", GFAR_INFOSTR_LEN);
drvinfo->n_stats = GFAR_STATS_LEN;
drvinfo->testinfo_len = 0;
drvinfo->regdump_len = 0;
drvinfo->eedump_len = 0;
}
static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct gfar_private *priv = netdev_priv(dev);
struct phy_device *phydev = priv->phydev;
if (NULL == phydev)
return -ENODEV;
return phy_ethtool_sset(phydev, cmd);
}
/* Return the current settings in the ethtool_cmd structure */
static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct gfar_private *priv = netdev_priv(dev);
struct phy_device *phydev = priv->phydev;
if (NULL == phydev)
return -ENODEV;
cmd->maxtxpkt = priv->txcount;
cmd->maxrxpkt = priv->rxcount;
return phy_ethtool_gset(phydev, cmd);
}
/* Return the length of the register structure */
static int gfar_reglen(struct net_device *dev)
{
return sizeof (struct gfar);
}
/* Return a dump of the GFAR register space */
static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
{
int i;
struct gfar_private *priv = netdev_priv(dev);
u32 __iomem *theregs = (u32 __iomem *) priv->regs;
u32 *buf = (u32 *) regbuf;
for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
buf[i] = gfar_read(&theregs[i]);
}
/* Convert microseconds to ethernet clock ticks, which changes
* depending on what speed the controller is running at */
static unsigned int gfar_usecs2ticks(struct gfar_private *priv, unsigned int usecs)
{
unsigned int count;
/* The timer is different, depending on the interface speed */
switch (priv->phydev->speed) {
case SPEED_1000:
count = GFAR_GBIT_TIME;
break;
case SPEED_100:
count = GFAR_100_TIME;
break;
case SPEED_10:
default:
count = GFAR_10_TIME;
break;
}
/* Make sure we return a number greater than 0
* if usecs > 0 */
return ((usecs * 1000 + count - 1) / count);
}
/* Convert ethernet clock ticks to microseconds */
static unsigned int gfar_ticks2usecs(struct gfar_private *priv, unsigned int ticks)
{
unsigned int count;
/* The timer is different, depending on the interface speed */
switch (priv->phydev->speed) {
case SPEED_1000:
count = GFAR_GBIT_TIME;
break;
case SPEED_100:
count = GFAR_100_TIME;
break;
case SPEED_10:
default:
count = GFAR_10_TIME;
break;
}
/* Make sure we return a number greater than 0 */
/* if ticks is > 0 */
return ((ticks * count) / 1000);
}
/* Get the coalescing parameters, and put them in the cvals
* structure. */
static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
{
struct gfar_private *priv = netdev_priv(dev);
if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
return -EOPNOTSUPP;
if (NULL == priv->phydev)
return -ENODEV;
cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, priv->rxtime);
cvals->rx_max_coalesced_frames = priv->rxcount;
cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, priv->txtime);
cvals->tx_max_coalesced_frames = priv->txcount;
cvals->use_adaptive_rx_coalesce = 0;
cvals->use_adaptive_tx_coalesce = 0;
cvals->pkt_rate_low = 0;
cvals->rx_coalesce_usecs_low = 0;
cvals->rx_max_coalesced_frames_low = 0;
cvals->tx_coalesce_usecs_low = 0;
cvals->tx_max_coalesced_frames_low = 0;
/* When the packet rate is below pkt_rate_high but above
* pkt_rate_low (both measured in packets per second) the
* normal {rx,tx}_* coalescing parameters are used.
*/
/* When the packet rate is (measured in packets per second)
* is above pkt_rate_high, the {rx,tx}_*_high parameters are
* used.
*/
cvals->pkt_rate_high = 0;
cvals->rx_coalesce_usecs_high = 0;
cvals->rx_max_coalesced_frames_high = 0;
cvals->tx_coalesce_usecs_high = 0;
cvals->tx_max_coalesced_frames_high = 0;
/* How often to do adaptive coalescing packet rate sampling,
* measured in seconds. Must not be zero.
*/
cvals->rate_sample_interval = 0;
return 0;
}
/* Change the coalescing values.
* Both cvals->*_usecs and cvals->*_frames have to be > 0
* in order for coalescing to be active
*/
static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
{
struct gfar_private *priv = netdev_priv(dev);
if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
return -EOPNOTSUPP;
/* Set up rx coalescing */
if ((cvals->rx_coalesce_usecs == 0) ||
(cvals->rx_max_coalesced_frames == 0))
priv->rxcoalescing = 0;
else
priv->rxcoalescing = 1;
if (NULL == priv->phydev)
return -ENODEV;
/* Check the bounds of the values */
if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
pr_info("Coalescing is limited to %d microseconds\n",
GFAR_MAX_COAL_USECS);
return -EINVAL;
}
if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
pr_info("Coalescing is limited to %d frames\n",
GFAR_MAX_COAL_FRAMES);
return -EINVAL;
}
priv->rxtime = gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs);
priv->rxcount = cvals->rx_max_coalesced_frames;
/* Set up tx coalescing */
if ((cvals->tx_coalesce_usecs == 0) ||
(cvals->tx_max_coalesced_frames == 0))
priv->txcoalescing = 0;
else
priv->txcoalescing = 1;
/* Check the bounds of the values */
if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
pr_info("Coalescing is limited to %d microseconds\n",
GFAR_MAX_COAL_USECS);
return -EINVAL;
}
if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
pr_info("Coalescing is limited to %d frames\n",
GFAR_MAX_COAL_FRAMES);
return -EINVAL;
}
priv->txtime = gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs);
priv->txcount = cvals->tx_max_coalesced_frames;
if (priv->rxcoalescing)
gfar_write(&priv->regs->rxic,
mk_ic_value(priv->rxcount, priv->rxtime));
else
gfar_write(&priv->regs->rxic, 0);
if (priv->txcoalescing)
gfar_write(&priv->regs->txic,
mk_ic_value(priv->txcount, priv->txtime));
else
gfar_write(&priv->regs->txic, 0);
return 0;
}
/* Fills in rvals with the current ring parameters. Currently,
* rx, rx_mini, and rx_jumbo rings are the same size, as mini and
* jumbo are ignored by the driver */
static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
{
struct gfar_private *priv = netdev_priv(dev);
rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
/* Values changeable by the user. The valid values are
* in the range 1 to the "*_max_pending" counterpart above.
*/
rvals->rx_pending = priv->rx_ring_size;
rvals->rx_mini_pending = priv->rx_ring_size;
rvals->rx_jumbo_pending = priv->rx_ring_size;
rvals->tx_pending = priv->tx_ring_size;
}
/* Change the current ring parameters, stopping the controller if
* necessary so that we don't mess things up while we're in
* motion. We wait for the ring to be clean before reallocating
* the rings. */
static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
{
struct gfar_private *priv = netdev_priv(dev);
int err = 0;
if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
return -EINVAL;
if (!is_power_of_2(rvals->rx_pending)) {
printk("%s: Ring sizes must be a power of 2\n",
dev->name);
return -EINVAL;
}
if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
return -EINVAL;
if (!is_power_of_2(rvals->tx_pending)) {
printk("%s: Ring sizes must be a power of 2\n",
dev->name);
return -EINVAL;
}
if (dev->flags & IFF_UP) {
unsigned long flags;
/* Halt TX and RX, and process the frames which
* have already been received */
spin_lock_irqsave(&priv->txlock, flags);
spin_lock(&priv->rxlock);
gfar_halt(dev);
gfar_clean_rx_ring(dev, priv->rx_ring_size);
spin_unlock(&priv->rxlock);
spin_unlock_irqrestore(&priv->txlock, flags);
/* Now we take down the rings to rebuild them */
stop_gfar(dev);
}
/* Change the size */
priv->rx_ring_size = rvals->rx_pending;
priv->tx_ring_size = rvals->tx_pending;
/* Rebuild the rings with the new size */
if (dev->flags & IFF_UP)
err = startup_gfar(dev);
return err;
}
static int gfar_set_rx_csum(struct net_device *dev, uint32_t data)
{
struct gfar_private *priv = netdev_priv(dev);
int err = 0;
if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
return -EOPNOTSUPP;
if (dev->flags & IFF_UP) {
unsigned long flags;
/* Halt TX and RX, and process the frames which
* have already been received */
spin_lock_irqsave(&priv->txlock, flags);
spin_lock(&priv->rxlock);
gfar_halt(dev);
gfar_clean_rx_ring(dev, priv->rx_ring_size);
spin_unlock(&priv->rxlock);
spin_unlock_irqrestore(&priv->txlock, flags);
/* Now we take down the rings to rebuild them */
stop_gfar(dev);
}
priv->rx_csum_enable = data;
if (dev->flags & IFF_UP)
err = startup_gfar(dev);
return err;
}
static uint32_t gfar_get_rx_csum(struct net_device *dev)
{
struct gfar_private *priv = netdev_priv(dev);
if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
return 0;
return priv->rx_csum_enable;
}
static int gfar_set_tx_csum(struct net_device *dev, uint32_t data)
{
unsigned long flags;
struct gfar_private *priv = netdev_priv(dev);
if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
return -EOPNOTSUPP;
spin_lock_irqsave(&priv->txlock, flags);
gfar_halt(dev);
if (data)
dev->features |= NETIF_F_IP_CSUM;
else
dev->features &= ~NETIF_F_IP_CSUM;
gfar_start(dev);
spin_unlock_irqrestore(&priv->txlock, flags);
return 0;
}
static uint32_t gfar_get_tx_csum(struct net_device *dev)
{
struct gfar_private *priv = netdev_priv(dev);
if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
return 0;
return (dev->features & NETIF_F_IP_CSUM) != 0;
}
static uint32_t gfar_get_msglevel(struct net_device *dev)
{
struct gfar_private *priv = netdev_priv(dev);
return priv->msg_enable;
}
static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
{
struct gfar_private *priv = netdev_priv(dev);
priv->msg_enable = data;
}
const struct ethtool_ops gfar_ethtool_ops = {
.get_settings = gfar_gsettings,
.set_settings = gfar_ssettings,
.get_drvinfo = gfar_gdrvinfo,
.get_regs_len = gfar_reglen,
.get_regs = gfar_get_regs,
.get_link = ethtool_op_get_link,
.get_coalesce = gfar_gcoalesce,
.set_coalesce = gfar_scoalesce,
.get_ringparam = gfar_gringparam,
.set_ringparam = gfar_sringparam,
.get_strings = gfar_gstrings,
.get_stats_count = gfar_stats_count,
.get_ethtool_stats = gfar_fill_stats,
.get_rx_csum = gfar_get_rx_csum,
.get_tx_csum = gfar_get_tx_csum,
.set_rx_csum = gfar_set_rx_csum,
.set_tx_csum = gfar_set_tx_csum,
.get_msglevel = gfar_get_msglevel,
.set_msglevel = gfar_set_msglevel,
};
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