/*
* Copyright (C) 1999 - 2010 Intel Corporation.
* Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
*
* This code was derived from the Intel e1000e Linux driver.
*
* 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; version 2 of the License.
*
* This program is distributed in the hope that 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
#include "pch_gbe.h"
#include "pch_gbe_api.h"
/**
* pch_gbe_stats - Stats item infomation
*/
struct pch_gbe_stats {
char string[ETH_GSTRING_LEN];
size_t size;
size_t offset;
};
#define PCH_GBE_STAT(m) \
{ \
.string = #m, \
.size = FIELD_SIZEOF(struct pch_gbe_hw_stats, m), \
.offset = offsetof(struct pch_gbe_hw_stats, m), \
}
/**
* pch_gbe_gstrings_stats - ethtool information status name list
*/
static const struct pch_gbe_stats pch_gbe_gstrings_stats[] = {
PCH_GBE_STAT(rx_packets),
PCH_GBE_STAT(tx_packets),
PCH_GBE_STAT(rx_bytes),
PCH_GBE_STAT(tx_bytes),
PCH_GBE_STAT(rx_errors),
PCH_GBE_STAT(tx_errors),
PCH_GBE_STAT(rx_dropped),
PCH_GBE_STAT(tx_dropped),
PCH_GBE_STAT(multicast),
PCH_GBE_STAT(collisions),
PCH_GBE_STAT(rx_crc_errors),
PCH_GBE_STAT(rx_frame_errors),
PCH_GBE_STAT(rx_alloc_buff_failed),
PCH_GBE_STAT(tx_length_errors),
PCH_GBE_STAT(tx_aborted_errors),
PCH_GBE_STAT(tx_carrier_errors),
PCH_GBE_STAT(tx_timeout_count),
PCH_GBE_STAT(tx_restart_count),
PCH_GBE_STAT(intr_rx_dsc_empty_count),
PCH_GBE_STAT(intr_rx_frame_err_count),
PCH_GBE_STAT(intr_rx_fifo_err_count),
PCH_GBE_STAT(intr_rx_dma_err_count),
PCH_GBE_STAT(intr_tx_fifo_err_count),
PCH_GBE_STAT(intr_tx_dma_err_count),
PCH_GBE_STAT(intr_tcpip_err_count)
};
#define PCH_GBE_QUEUE_STATS_LEN 0
#define PCH_GBE_GLOBAL_STATS_LEN ARRAY_SIZE(pch_gbe_gstrings_stats)
#define PCH_GBE_STATS_LEN (PCH_GBE_GLOBAL_STATS_LEN + PCH_GBE_QUEUE_STATS_LEN)
#define PCH_GBE_MAC_REGS_LEN (sizeof(struct pch_gbe_regs) / 4)
#define PCH_GBE_REGS_LEN (PCH_GBE_MAC_REGS_LEN + PCH_GBE_PHY_REGS_LEN)
/**
* pch_gbe_get_settings - Get device-specific settings
* @netdev: Network interface device structure
* @ecmd: Ethtool command
* Returns
* 0: Successful.
* Negative value: Failed.
*/
static int pch_gbe_get_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
int ret;
ret = mii_ethtool_gset(&adapter->mii, ecmd);
ecmd->supported &= ~(SUPPORTED_TP | SUPPORTED_1000baseT_Half);
ecmd->advertising &= ~(ADVERTISED_TP | ADVERTISED_1000baseT_Half);
if (!netif_carrier_ok(adapter->netdev))
ecmd->speed = -1;
return ret;
}
/**
* pch_gbe_set_settings - Set device-specific settings
* @netdev: Network interface device structure
* @ecmd: Ethtool command
* Returns
* 0: Successful.
* Negative value: Failed.
*/
static int pch_gbe_set_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
struct pch_gbe_hw *hw = &adapter->hw;
int ret;
pch_gbe_hal_write_phy_reg(hw, MII_BMCR, BMCR_RESET);
if (ecmd->speed == USHRT_MAX) {
ecmd->speed = SPEED_1000;
ecmd->duplex = DUPLEX_FULL;
}
ret = mii_ethtool_sset(&adapter->mii, ecmd);
if (ret) {
pr_err("Error: mii_ethtool_sset\n");
return ret;
}
hw->mac.link_speed = ecmd->speed;
hw->mac.link_duplex = ecmd->duplex;
hw->phy.autoneg_advertised = ecmd->advertising;
hw->mac.autoneg = ecmd->autoneg;
pch_gbe_hal_phy_sw_reset(hw);
/* reset the link */
if (netif_running(adapter->netdev)) {
pch_gbe_down(adapter);
ret = pch_gbe_up(adapter);
} else {
pch_gbe_reset(adapter);
}
return ret;
}
/**
* pch_gbe_get_regs_len - Report the size of device registers
* @netdev: Network interface device structure
* Returns: the size of device registers.
*/
static int pch_gbe_get_regs_len(struct net_device *netdev)
{
return PCH_GBE_REGS_LEN * (int)sizeof(u32);
}
/**
* pch_gbe_get_drvinfo - Report driver information
* @netdev: Network interface device structure
* @drvinfo: Driver information structure
*/
static void pch_gbe_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *drvinfo)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
strcpy(drvinfo->driver, KBUILD_MODNAME);
strcpy(drvinfo->version, pch_driver_version);
strcpy(drvinfo->fw_version, "N/A");
strcpy(drvinfo->bus_info, pci_name(adapter->pdev));
drvinfo->regdump_len = pch_gbe_get_regs_len(netdev);
}
/**
* pch_gbe_get_regs - Get device registers
* @netdev: Network interface device structure
* @regs: Ethtool register structure
* @p: Buffer pointer of read device register date
*/
static void pch_gbe_get_regs(struct net_device *netdev,
struct ethtool_regs *regs, void *p)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
struct pch_gbe_hw *hw = &adapter->hw;
struct pci_dev *pdev = adapter->pdev;
u32 *regs_buff = p;
u16 i, tmp;
regs->version = 0x1000000 | (__u32)pdev->revision << 16 | pdev->device;
for (i = 0; i < PCH_GBE_MAC_REGS_LEN; i++)
*regs_buff++ = ioread32(&hw->reg->INT_ST + i);
/* PHY register */
for (i = 0; i < PCH_GBE_PHY_REGS_LEN; i++) {
pch_gbe_hal_read_phy_reg(&adapter->hw, i, &tmp);
*regs_buff++ = tmp;
}
}
/**
* pch_gbe_get_wol - Report whether Wake-on-Lan is enabled
* @netdev: Network interface device structure
* @wol: Wake-on-Lan information
*/
static void pch_gbe_get_wol(struct net_device *netdev,
struct ethtool_wolinfo *wol)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
wol->wolopts = 0;
if ((adapter->wake_up_evt & PCH_GBE_WLC_IND))
wol->wolopts |= WAKE_UCAST;
if ((adapter->wake_up_evt & PCH_GBE_WLC_MLT))
wol->wolopts |= WAKE_MCAST;
if ((adapter->wake_up_evt & PCH_GBE_WLC_BR))
wol->wolopts |= WAKE_BCAST;
if ((adapter->wake_up_evt & PCH_GBE_WLC_MP))
wol->wolopts |= WAKE_MAGIC;
}
/**
* pch_gbe_set_wol - Turn Wake-on-Lan on or off
* @netdev: Network interface device structure
* @wol: Pointer of wake-on-Lan information straucture
* Returns
* 0: Successful.
* Negative value: Failed.
*/
static int pch_gbe_set_wol(struct net_device *netdev,
struct ethtool_wolinfo *wol)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
if ((wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)))
return -EOPNOTSUPP;
/* these settings will always override what we currently have */
adapter->wake_up_evt = 0;
if ((wol->wolopts & WAKE_UCAST))
adapter->wake_up_evt |= PCH_GBE_WLC_IND;
if ((wol->wolopts & WAKE_MCAST))
adapter->wake_up_evt |= PCH_GBE_WLC_MLT;
if ((wol->wolopts & WAKE_BCAST))
adapter->wake_up_evt |= PCH_GBE_WLC_BR;
if ((wol->wolopts & WAKE_MAGIC))
adapter->wake_up_evt |= PCH_GBE_WLC_MP;
return 0;
}
/**
* pch_gbe_nway_reset - Restart autonegotiation
* @netdev: Network interface device structure
* Returns
* 0: Successful.
* Negative value: Failed.
*/
static int pch_gbe_nway_reset(struct net_device *netdev)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
return mii_nway_restart(&adapter->mii);
}
/**
* pch_gbe_get_ringparam - Report ring sizes
* @netdev: Network interface device structure
* @ring: Ring param structure
*/
static void pch_gbe_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
struct pch_gbe_tx_ring *txdr = adapter->tx_ring;
struct pch_gbe_rx_ring *rxdr = adapter->rx_ring;
ring->rx_max_pending = PCH_GBE_MAX_RXD;
ring->tx_max_pending = PCH_GBE_MAX_TXD;
ring->rx_mini_max_pending = 0;
ring->rx_jumbo_max_pending = 0;
ring->rx_pending = rxdr->count;
ring->tx_pending = txdr->count;
ring->rx_mini_pending = 0;
ring->rx_jumbo_pending = 0;
}
/**
* pch_gbe_set_ringparam - Set ring sizes
* @netdev: Network interface device structure
* @ring: Ring param structure
* Returns
* 0: Successful.
* Negative value: Failed.
*/
static int pch_gbe_set_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
struct pch_gbe_tx_ring *txdr, *tx_old;
struct pch_gbe_rx_ring *rxdr, *rx_old;
int tx_ring_size, rx_ring_size;
int err = 0;
if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
return -EINVAL;
tx_ring_size = (int)sizeof(struct pch_gbe_tx_ring);
rx_ring_size = (int)sizeof(struct pch_gbe_rx_ring);
if ((netif_running(adapter->netdev)))
pch_gbe_down(adapter);
tx_old = adapter->tx_ring;
rx_old = adapter->rx_ring;
txdr = kzalloc(tx_ring_size, GFP_KERNEL);
if (!txdr) {
err = -ENOMEM;
goto err_alloc_tx;
}
rxdr = kzalloc(rx_ring_size, GFP_KERNEL);
if (!rxdr) {
err = -ENOMEM;
goto err_alloc_rx;
}
adapter->tx_ring = txdr;
adapter->rx_ring = rxdr;
rxdr->count =
clamp_val(ring->rx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
rxdr->count = roundup(rxdr->count, PCH_GBE_RX_DESC_MULTIPLE);
txdr->count =
clamp_val(ring->tx_pending, PCH_GBE_MIN_RXD, PCH_GBE_MAX_RXD);
txdr->count = roundup(txdr->count, PCH_GBE_TX_DESC_MULTIPLE);
if ((netif_running(adapter->netdev))) {
/* Try to get new resources before deleting old */
err = pch_gbe_setup_rx_resources(adapter, adapter->rx_ring);
if (err)
goto err_setup_rx;
err = pch_gbe_setup_tx_resources(adapter, adapter->tx_ring);
if (err)
goto err_setup_tx;
/* save the new, restore the old in order to free it,
* then restore the new back again */
#ifdef RINGFREE
adapter->rx_ring = rx_old;
adapter->tx_ring = tx_old;
pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
kfree(tx_old);
kfree(rx_old);
adapter->rx_ring = rxdr;
adapter->tx_ring = txdr;
#else
pch_gbe_free_rx_resources(adapter, rx_old);
pch_gbe_free_tx_resources(adapter, tx_old);
kfree(tx_old);
kfree(rx_old);
adapter->rx_ring = rxdr;
adapter->tx_ring = txdr;
#endif
err = pch_gbe_up(adapter);
}
return err;
err_setup_tx:
pch_gbe_free_rx_resources(adapter, adapter->rx_ring);
err_setup_rx:
adapter->rx_ring = rx_old;
adapter->tx_ring = tx_old;
kfree(rxdr);
err_alloc_rx:
kfree(txdr);
err_alloc_tx:
if (netif_running(adapter->netdev))
pch_gbe_up(adapter);
return err;
}
/**
* pch_gbe_get_pauseparam - Report pause parameters
* @netdev: Network interface device structure
* @pause: Pause parameters structure
*/
static void pch_gbe_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
struct pch_gbe_hw *hw = &adapter->hw;
pause->autoneg =
((hw->mac.fc_autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE);
if (hw->mac.fc == PCH_GBE_FC_RX_PAUSE) {
pause->rx_pause = 1;
} else if (hw->mac.fc == PCH_GBE_FC_TX_PAUSE) {
pause->tx_pause = 1;
} else if (hw->mac.fc == PCH_GBE_FC_FULL) {
pause->rx_pause = 1;
pause->tx_pause = 1;
}
}
/**
* pch_gbe_set_pauseparam - Set pause paramters
* @netdev: Network interface device structure
* @pause: Pause parameters structure
* Returns
* 0: Successful.
* Negative value: Failed.
*/
static int pch_gbe_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
struct pch_gbe_hw *hw = &adapter->hw;
int ret = 0;
hw->mac.fc_autoneg = pause->autoneg;
if ((pause->rx_pause) && (pause->tx_pause))
hw->mac.fc = PCH_GBE_FC_FULL;
else if ((pause->rx_pause) && (!pause->tx_pause))
hw->mac.fc = PCH_GBE_FC_RX_PAUSE;
else if ((!pause->rx_pause) && (pause->tx_pause))
hw->mac.fc = PCH_GBE_FC_TX_PAUSE;
else if ((!pause->rx_pause) && (!pause->tx_pause))
hw->mac.fc = PCH_GBE_FC_NONE;
if (hw->mac.fc_autoneg == AUTONEG_ENABLE) {
if ((netif_running(adapter->netdev))) {
pch_gbe_down(adapter);
ret = pch_gbe_up(adapter);
} else {
pch_gbe_reset(adapter);
}
} else {
ret = pch_gbe_mac_force_mac_fc(hw);
}
return ret;
}
/**
* pch_gbe_get_rx_csum - Report whether receive checksums are turned on or off
* @netdev: Network interface device structure
* Returns
* true(1): Checksum On
* false(0): Checksum Off
*/
static u32 pch_gbe_get_rx_csum(struct net_device *netdev)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
return adapter->rx_csum;
}
/**
* pch_gbe_set_rx_csum - Turn receive checksum on or off
* @netdev: Network interface device structure
* @data: Checksum On[true] or Off[false]
* Returns
* 0: Successful.
* Negative value: Failed.
*/
static int pch_gbe_set_rx_csum(struct net_device *netdev, u32 data)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
adapter->rx_csum = data;
if ((netif_running(netdev)))
pch_gbe_reinit_locked(adapter);
else
pch_gbe_reset(adapter);
return 0;
}
/**
* pch_gbe_get_tx_csum - Report whether transmit checksums are turned on or off
* @netdev: Network interface device structure
* Returns
* true(1): Checksum On
* false(0): Checksum Off
*/
static u32 pch_gbe_get_tx_csum(struct net_device *netdev)
{
return (netdev->features & NETIF_F_HW_CSUM) != 0;
}
/**
* pch_gbe_set_tx_csum - Turn transmit checksums on or off
* @netdev: Network interface device structure
* @data: Checksum on[true] or off[false]
* Returns
* 0: Successful.
* Negative value: Failed.
*/
static int pch_gbe_set_tx_csum(struct net_device *netdev, u32 data)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
adapter->tx_csum = data;
if (data)
netdev->features |= NETIF_F_HW_CSUM;
else
netdev->features &= ~NETIF_F_HW_CSUM;
return 0;
}
/**
* pch_gbe_get_strings - Return a set of strings that describe the requested
* objects
* @netdev: Network interface device structure
* @stringset: Select the stringset. [ETH_SS_TEST] [ETH_SS_STATS]
* @data: Pointer of read string data.
*/
static void pch_gbe_get_strings(struct net_device *netdev, u32 stringset,
u8 *data)
{
u8 *p = data;
int i;
switch (stringset) {
case (u32) ETH_SS_STATS:
for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
memcpy(p, pch_gbe_gstrings_stats[i].string,
ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
break;
}
}
/**
* pch_gbe_get_ethtool_stats - Return statistics about the device
* @netdev: Network interface device structure
* @stats: Ethtool statue structure
* @data: Pointer of read status area
*/
static void pch_gbe_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
int i;
const struct pch_gbe_stats *gstats = pch_gbe_gstrings_stats;
char *hw_stats = (char *)&adapter->stats;
pch_gbe_update_stats(adapter);
for (i = 0; i < PCH_GBE_GLOBAL_STATS_LEN; i++) {
char *p = hw_stats + gstats->offset;
data[i] = gstats->size == sizeof(u64) ? *(u64 *)p:(*(u32 *)p);
gstats++;
}
}
static int pch_gbe_get_sset_count(struct net_device *netdev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return PCH_GBE_STATS_LEN;
default:
return -EOPNOTSUPP;
}
}
static const struct ethtool_ops pch_gbe_ethtool_ops = {
.get_settings = pch_gbe_get_settings,
.set_settings = pch_gbe_set_settings,
.get_drvinfo = pch_gbe_get_drvinfo,
.get_regs_len = pch_gbe_get_regs_len,
.get_regs = pch_gbe_get_regs,
.get_wol = pch_gbe_get_wol,
.set_wol = pch_gbe_set_wol,
.nway_reset = pch_gbe_nway_reset,
.get_link = ethtool_op_get_link,
.get_ringparam = pch_gbe_get_ringparam,
.set_ringparam = pch_gbe_set_ringparam,
.get_pauseparam = pch_gbe_get_pauseparam,
.set_pauseparam = pch_gbe_set_pauseparam,
.get_rx_csum = pch_gbe_get_rx_csum,
.set_rx_csum = pch_gbe_set_rx_csum,
.get_tx_csum = pch_gbe_get_tx_csum,
.set_tx_csum = pch_gbe_set_tx_csum,
.get_strings = pch_gbe_get_strings,
.get_ethtool_stats = pch_gbe_get_ethtool_stats,
.get_sset_count = pch_gbe_get_sset_count,
};
void pch_gbe_set_ethtool_ops(struct net_device *netdev)
{
SET_ETHTOOL_OPS(netdev, &pch_gbe_ethtool_ops);
}
