diff options
Diffstat (limited to 'drivers/net/gianfar_ethtool.c')
| -rw-r--r-- | drivers/net/gianfar_ethtool.c | 588 |
1 files changed, 0 insertions, 588 deletions
diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c deleted file mode 100644 index 6007147cc1e..00000000000 --- a/drivers/net/gianfar_ethtool.c +++ /dev/null @@ -1,588 +0,0 @@ -/* - * 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 <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]; -} - -static int gfar_sset_count(struct net_device *dev, int sset) -{ - struct gfar_private *priv = netdev_priv(dev); - - switch (sset) { - case ETH_SS_STATS: - if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) - return GFAR_STATS_LEN; - else - return GFAR_EXTRA_STATS_LEN; - default: - return -EOPNOTSUPP; - } -} - -/* 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->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_sset_count = gfar_sset_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, -}; |