516 lines
14 KiB
C
516 lines
14 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (C) 1999 - 2010 Intel Corporation.
|
|
* Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
|
|
*
|
|
* This code was derived from the Intel e1000e Linux driver.
|
|
*/
|
|
#include "pch_gbe.h"
|
|
#include "pch_gbe_phy.h"
|
|
|
|
static const char pch_driver_version[] = "1.01";
|
|
|
|
/*
|
|
* pch_gbe_stats - Stats item information
|
|
*/
|
|
struct pch_gbe_stats {
|
|
char string[ETH_GSTRING_LEN];
|
|
size_t size;
|
|
size_t offset;
|
|
};
|
|
|
|
#define PCH_GBE_STAT(m) \
|
|
{ \
|
|
.string = #m, \
|
|
.size = sizeof_field(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_link_ksettings - Get device-specific settings
|
|
* @netdev: Network interface device structure
|
|
* @ecmd: Ethtool command
|
|
* Returns:
|
|
* 0: Successful.
|
|
* Negative value: Failed.
|
|
*/
|
|
static int pch_gbe_get_link_ksettings(struct net_device *netdev,
|
|
struct ethtool_link_ksettings *ecmd)
|
|
{
|
|
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
|
|
u32 supported, advertising;
|
|
|
|
mii_ethtool_get_link_ksettings(&adapter->mii, ecmd);
|
|
|
|
ethtool_convert_link_mode_to_legacy_u32(&supported,
|
|
ecmd->link_modes.supported);
|
|
ethtool_convert_link_mode_to_legacy_u32(&advertising,
|
|
ecmd->link_modes.advertising);
|
|
|
|
supported &= ~(SUPPORTED_TP | SUPPORTED_1000baseT_Half);
|
|
advertising &= ~(ADVERTISED_TP | ADVERTISED_1000baseT_Half);
|
|
|
|
ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.supported,
|
|
supported);
|
|
ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.advertising,
|
|
advertising);
|
|
|
|
if (!netif_carrier_ok(adapter->netdev))
|
|
ecmd->base.speed = SPEED_UNKNOWN;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* pch_gbe_set_link_ksettings - Set device-specific settings
|
|
* @netdev: Network interface device structure
|
|
* @ecmd: Ethtool command
|
|
* Returns:
|
|
* 0: Successful.
|
|
* Negative value: Failed.
|
|
*/
|
|
static int pch_gbe_set_link_ksettings(struct net_device *netdev,
|
|
const struct ethtool_link_ksettings *ecmd)
|
|
{
|
|
struct pch_gbe_adapter *adapter = netdev_priv(netdev);
|
|
struct pch_gbe_hw *hw = &adapter->hw;
|
|
struct ethtool_link_ksettings copy_ecmd;
|
|
u32 speed = ecmd->base.speed;
|
|
u32 advertising;
|
|
int ret;
|
|
|
|
pch_gbe_phy_write_reg_miic(hw, MII_BMCR, BMCR_RESET);
|
|
|
|
memcpy(©_ecmd, ecmd, sizeof(*ecmd));
|
|
|
|
/* when set_settings() is called with a ethtool_cmd previously
|
|
* filled by get_settings() on a down link, speed is -1: */
|
|
if (speed == UINT_MAX) {
|
|
speed = SPEED_1000;
|
|
copy_ecmd.base.speed = speed;
|
|
copy_ecmd.base.duplex = DUPLEX_FULL;
|
|
}
|
|
ret = mii_ethtool_set_link_ksettings(&adapter->mii, ©_ecmd);
|
|
if (ret) {
|
|
netdev_err(netdev, "Error: mii_ethtool_set_link_ksettings\n");
|
|
return ret;
|
|
}
|
|
hw->mac.link_speed = speed;
|
|
hw->mac.link_duplex = copy_ecmd.base.duplex;
|
|
ethtool_convert_link_mode_to_legacy_u32(
|
|
&advertising, copy_ecmd.link_modes.advertising);
|
|
hw->phy.autoneg_advertised = advertising;
|
|
hw->mac.autoneg = copy_ecmd.base.autoneg;
|
|
|
|
/* 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);
|
|
|
|
strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
|
|
strscpy(drvinfo->version, pch_driver_version, sizeof(drvinfo->version));
|
|
strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
|
|
sizeof(drvinfo->bus_info));
|
|
}
|
|
|
|
/**
|
|
* 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_phy_read_reg_miic(&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
|
|
* @kernel_ring: Ring external param structure
|
|
* @extack: netlink handle
|
|
*/
|
|
static void pch_gbe_get_ringparam(struct net_device *netdev,
|
|
struct ethtool_ringparam *ring,
|
|
struct kernel_ethtool_ringparam *kernel_ring,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
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_pending = rxdr->count;
|
|
ring->tx_pending = txdr->count;
|
|
}
|
|
|
|
/**
|
|
* pch_gbe_set_ringparam - Set ring sizes
|
|
* @netdev: Network interface device structure
|
|
* @ring: Ring param structure
|
|
* @kernel_ring: Ring external param structure
|
|
* @extack: netlink handle
|
|
* Returns
|
|
* 0: Successful.
|
|
* Negative value: Failed.
|
|
*/
|
|
static int pch_gbe_set_ringparam(struct net_device *netdev,
|
|
struct ethtool_ringparam *ring,
|
|
struct kernel_ethtool_ringparam *kernel_ring,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
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;
|
|
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;
|
|
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 parameters
|
|
* @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_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_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_strings = pch_gbe_get_strings,
|
|
.get_ethtool_stats = pch_gbe_get_ethtool_stats,
|
|
.get_sset_count = pch_gbe_get_sset_count,
|
|
.get_link_ksettings = pch_gbe_get_link_ksettings,
|
|
.set_link_ksettings = pch_gbe_set_link_ksettings,
|
|
};
|
|
|
|
void pch_gbe_set_ethtool_ops(struct net_device *netdev)
|
|
{
|
|
netdev->ethtool_ops = &pch_gbe_ethtool_ops;
|
|
}
|