ethtool.c

DELL755 Intel 网卡驱动

	memset(skb->data, 0xFF, frame_size);
	frame_size &= ~1;
	memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
	memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
	memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
}

static int e1000_check_lbtest_frame(struct sk_buff *skb,
				    unsigned int frame_size)
{
	frame_size &= ~1;
	if (*(skb->data + 3) == 0xFF)
		if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
		   (*(skb->data + frame_size / 2 + 12) == 0xAF))
			return 0;
	return 13;
}

static int e1000_run_loopback_test(struct e1000_adapter *adapter)
{
	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
	struct pci_dev *pdev = adapter->pdev;
	struct e1000_hw *hw = &adapter->hw;
	int i, j, k, l;
	int lc;
	int good_cnt;
	int ret_val = 0;
	unsigned long time;

	ew32(RDT(0), rx_ring->count - 1);

	/*
	 * Calculate the loop count based on the largest descriptor ring
	 * The idea is to wrap the largest ring a number of times using 64
	 * send/receive pairs during each loop
	 */

	if (rx_ring->count <= tx_ring->count)
		lc = ((tx_ring->count / 64) * 2) + 1;
	else
		lc = ((rx_ring->count / 64) * 2) + 1;

	k = 0;
	l = 0;
	for (j = 0; j <= lc; j++) { /* loop count loop */
		for (i = 0; i < 64; i++) { /* send the packets */
			e1000_create_lbtest_frame(tx_ring->buffer_info[k].skb,
			                          1024);
			pci_dma_sync_single_for_device(pdev,
					tx_ring->buffer_info[k].dma,
					tx_ring->buffer_info[k].length,
					PCI_DMA_TODEVICE);
			k++;
			if (k == tx_ring->count)
				k = 0;
		}
		ew32(TDT(0), k);
		msleep(200);
		time = jiffies; /* set the start time for the receive */
		good_cnt = 0;
		do { /* receive the sent packets */
			pci_dma_sync_single_for_cpu(pdev,
					rx_ring->buffer_info[l].dma, 2048,
					PCI_DMA_FROMDEVICE);

			ret_val = e1000_check_lbtest_frame(
					rx_ring->buffer_info[l].skb, 1024);
			if (!ret_val)
				good_cnt++;
			l++;
			if (l == rx_ring->count)
				l = 0;
			/*
			 * time + 20 msecs (200 msecs on 2.4) is more than
			 * enough time to complete the receives, if it's
			 * exceeded, break and error off
			 */
		} while ((good_cnt < 64) && !time_after(jiffies, time + 20));
		if (good_cnt != 64) {
			ret_val = 13; /* ret_val is the same as mis-compare */
			break;
		}
		if (jiffies >= (time + 20)) {
			ret_val = 14; /* error code for time out error */
			break;
		}
	} /* end loop count loop */
	return ret_val;
}

static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
{
	struct e1000_hw *hw = &adapter->hw;
	/*
	 * PHY loopback cannot be performed if SoL/IDER
	 * sessions are active
	 */
	if (hw->phy.ops.check_reset_block &&
	    hw->phy.ops.check_reset_block(&adapter->hw)) {
		e_err("Cannot do PHY loopback test when SoL/IDER is active.\n");
		*data = 0;
		goto out;
	}

	*data = e1000_setup_desc_rings(adapter);
	if (*data)
		goto out;

	*data = e1000_setup_loopback_test(adapter);
	if (*data)
		goto err_loopback;

	*data = e1000_run_loopback_test(adapter);
	e1000_loopback_cleanup(adapter);

err_loopback:
	e1000_free_desc_rings(adapter);
out:
	return *data;
}

static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
{
	struct e1000_hw *hw = &adapter->hw;

	*data = 0;
	if (hw->phy.media_type == e1000_media_type_internal_serdes) {
		int i = 0;
		hw->mac.serdes_has_link = 0;

		/*
		 * On some blade server designs, link establishment
		 * could take as long as 2-3 minutes
		 */
		do {
			hw->mac.ops.check_for_link(hw);
			if (hw->mac.serdes_has_link)
				return *data;
			msleep(20);
		} while (i++ < 3750);

		*data = 1;
	} else {
		hw->mac.ops.check_for_link(hw);
		if (hw->mac.autoneg)
			msleep(4000);

		if (!(er32(STATUS) &
		      E1000_STATUS_LU))
			*data = 1;
	}
	return *data;
}

static int e1000_get_self_test_count(struct net_device *netdev)
{
	return E1000_TEST_LEN;
}

static int e1000_get_stats_count(struct net_device *netdev)
{
	return E1000_STATS_LEN;
}

static void e1000_diag_test(struct net_device *netdev,
			    struct ethtool_test *eth_test, u64 *data)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	u16 autoneg_advertised;
	u8 forced_speed_duplex;
	u8 autoneg;
	bool if_running = netif_running(netdev);

	set_bit(__E1000_TESTING, &adapter->state);
	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
		/* Offline tests */

		/* save speed, duplex, autoneg settings */
		autoneg_advertised = adapter->hw.phy.autoneg_advertised;
		forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
		autoneg = adapter->hw.mac.autoneg;

		e_info("offline testing starting\n");

		/*
		 * Link test performed before hardware reset so autoneg doesn't
		 * interfere with test result
		 */
		if (e1000_link_test(adapter, &data[4]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		if (if_running)
			/* indicate we're in test mode */
			dev_close(netdev);
		else
			e1000_reset(adapter);

		if (e1000_reg_test(adapter, &data[0]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		e1000_reset(adapter);
		if (e1000_eeprom_test(adapter, &data[1]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		e1000_reset(adapter);
		if (e1000_intr_test(adapter, &data[2]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		e1000_reset(adapter);
		/* make sure the phy is powered up */
		e1000_power_up_phy(&adapter->hw);
		if (e1000_loopback_test(adapter, &data[3]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		/* restore speed, duplex, autoneg settings */
		adapter->hw.phy.autoneg_advertised = autoneg_advertised;
		adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
		adapter->hw.mac.autoneg = autoneg;

		/* force this routine to wait until autoneg complete/timeout */
		adapter->hw.phy.autoneg_wait_to_complete = 1;
		e1000_reset(adapter);
		adapter->hw.phy.autoneg_wait_to_complete = 0;

		clear_bit(__E1000_TESTING, &adapter->state);
		if (if_running)
			dev_open(netdev);
	} else {
		e_info("online testing starting\n");
		/* Online tests */
		if (e1000_link_test(adapter, &data[4]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		/* Online tests aren't run; pass by default */
		data[0] = 0;
		data[1] = 0;
		data[2] = 0;
		data[3] = 0;

		clear_bit(__E1000_TESTING, &adapter->state);
	}
	msleep_interruptible(4 * 1000);
}

static void e1000_get_wol(struct net_device *netdev,
			  struct ethtool_wolinfo *wol)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);

	wol->supported = 0;
	wol->wolopts = 0;

	if (!(adapter->flags & FLAG_HAS_WOL))
		return;

	wol->supported = WAKE_UCAST | WAKE_MCAST |
	                 WAKE_BCAST | WAKE_MAGIC |
	                 WAKE_PHY | WAKE_ARP;

	/* apply any specific unsupported masks here */
	if (adapter->flags & FLAG_NO_WAKE_UCAST) {
		wol->supported &= ~WAKE_UCAST;

		if (adapter->wol & E1000_WUFC_EX)
			e_err("Interface does not support directed (unicast)"
			      " frame wake-up packets\n");
	}

	if (adapter->wol & E1000_WUFC_EX)
		wol->wolopts |= WAKE_UCAST;
	if (adapter->wol & E1000_WUFC_MC)
		wol->wolopts |= WAKE_MCAST;
	if (adapter->wol & E1000_WUFC_BC)
		wol->wolopts |= WAKE_BCAST;
	if (adapter->wol & E1000_WUFC_MAG)
		wol->wolopts |= WAKE_MAGIC;
	if (adapter->wol & E1000_WUFC_LNKC)
		wol->wolopts |= WAKE_PHY;
	if (adapter->wol & E1000_WUFC_ARP)
		wol->wolopts |= WAKE_ARP;
}

static int e1000_set_wol(struct net_device *netdev,
			 struct ethtool_wolinfo *wol)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);

	if (wol->wolopts & WAKE_MAGICSECURE)
		return -EOPNOTSUPP;

	if (!(adapter->flags & FLAG_HAS_WOL))
		return wol->wolopts ? -EOPNOTSUPP : 0;

	/* these settings will always override what we currently have */
	adapter->wol = 0;

	if (wol->wolopts & WAKE_UCAST)
		adapter->wol |= E1000_WUFC_EX;
	if (wol->wolopts & WAKE_MCAST)
		adapter->wol |= E1000_WUFC_MC;
	if (wol->wolopts & WAKE_BCAST)
		adapter->wol |= E1000_WUFC_BC;
	if (wol->wolopts & WAKE_MAGIC)
		adapter->wol |= E1000_WUFC_MAG;
	if (wol->wolopts & WAKE_PHY)
		adapter->wol |= E1000_WUFC_LNKC;
	if (wol->wolopts & WAKE_ARP)
		adapter->wol |= E1000_WUFC_ARP;

	return 0;
}

/* toggle LED 4 times per second = 2 "blinks" per second */
#define E1000_ID_INTERVAL	(HZ/4)

/* bit defines for adapter->led_status */
#define E1000_LED_ON		0

static void e1000_led_blink_callback(unsigned long data)
{
	struct e1000_adapter *adapter = (struct e1000_adapter *) data;

	if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
		adapter->hw.mac.ops.led_off(&adapter->hw);
	else
		adapter->hw.mac.ops.led_on(&adapter->hw);

	mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
}

static int e1000_phys_id(struct net_device *netdev, u32 data)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_hw *hw = &adapter->hw;

	if (!data)
		data = INT_MAX;

	if ((hw->phy.type == e1000_phy_ife) ||
	    (hw->mac.type == e1000_82574)) {
		if (!adapter->blink_timer.function) {
			init_timer(&adapter->blink_timer);
			adapter->blink_timer.function =
				e1000_led_blink_callback;
			adapter->blink_timer.data = (unsigned long) adapter;
		}
		mod_timer(&adapter->blink_timer, jiffies);
		msleep_interruptible(data * 1000);
		del_timer_sync(&adapter->blink_timer);
	if (hw->phy.type == e1000_phy_ife)
			hw->phy.ops.write_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED,
			                      0);
	} else {
		hw->mac.ops.blink_led(hw);
		msleep_interruptible(data * 1000);
	}

	hw->mac.ops.led_off(hw);
	clear_bit(E1000_LED_ON, &adapter->led_status);
	hw->mac.ops.cleanup_led(hw);

	return 0;
}

static int e1000_get_coalesce(struct net_device *netdev,
			      struct ethtool_coalesce *ec)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);

	if (adapter->itr_setting <= 3)
		ec->rx_coalesce_usecs = adapter->itr_setting;
	else
		ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting;

	ec->stats_block_coalesce_usecs = adapter->stats_freq_us;

	return 0;
}

static int e1000_set_coalesce(struct net_device *netdev,
			      struct ethtool_coalesce *ec)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_hw *hw = &adapter->hw;

	if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) ||
	    ((ec->rx_coalesce_usecs > 3) &&
	     (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) ||
	    (ec->rx_coalesce_usecs == 2) ||
	    (ec->stats_block_coalesce_usecs > (10 * 1000000)))
		return -EINVAL;

	adapter->stats_freq_us = ec->stats_block_coalesce_usecs;

	if (ec->rx_coalesce_usecs <= 3) {
		adapter->itr = 20000;
		adapter->itr_setting = ec->rx_coalesce_usecs;
	} else {
		adapter->itr = (1000000 / ec->rx_coalesce_usecs);
		adapter->itr_setting = adapter->itr & ~3;
	}

	if (adapter->itr_setting != 0)
		ew32(ITR, 1000000000 / (adapter->itr * 256));
	else
		ew32(ITR, 0);

	return 0;
}

static int e1000_nway_reset(struct net_device *netdev)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	if (netif_running(netdev))
		e1000_reinit_locked(adapter);
	return 0;
}

static void e1000_get_ethtool_stats(struct net_device *netdev,
				    struct ethtool_stats *stats,
				    u64 *data)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	int i;

	e1000_update_stats(adapter);
	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
		char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
		data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
	}
}

static void e1000_get_strings(struct net_device *netdev, u32 stringset,
			      u8 *data)
{
	u8 *p = data;
	int i;

	switch (stringset) {
	case ETH_SS_TEST:
		memcpy(data, *e1000_gstrings_test, sizeof(e1000_gstrings_test));
		break;
	case ETH_SS_STATS:
		for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
			memcpy(p, e1000_gstrings_stats[i].stat_string,
			       ETH_GSTRING_LEN);
			p += ETH_GSTRING_LEN;
		}
		break;
	}
}

static const struct ethtool_ops e1000_ethtool_ops = {
	.get_settings		= e1000_get_settings,
	.set_settings		= e1000_set_settings,
	.get_drvinfo		= e1000_get_drvinfo,
	.get_regs_len		= e1000_get_regs_len,
	.get_regs		= e1000_get_regs,
	.get_wol		= e1000_get_wol,
	.set_wol		= e1000_set_wol,
	.get_msglevel		= e1000_get_msglevel,
	.set_msglevel		= e1000_set_msglevel,
	.nway_reset		= e1000_nway_reset,
	.get_link		= e1000_get_link,
	.get_eeprom_len		= e1000_get_eeprom_len,
	.get_eeprom		= e1000_get_eeprom,
	.set_eeprom		= e1000_set_eeprom,
	.get_ringparam		= e1000_get_ringparam,
	.set_ringparam		= e1000_set_ringparam,
	.get_pauseparam		= e1000_get_pauseparam,
	.set_pauseparam		= e1000_set_pauseparam,
	.get_rx_csum		= e1000_get_rx_csum,
	.set_rx_csum		= e1000_set_rx_csum,
	.get_tx_csum		= e1000_get_tx_csum,
	.set_tx_csum		= e1000_set_tx_csum,
	.get_sg			= ethtool_op_get_sg,
	.set_sg			= ethtool_op_set_sg,
#ifdef NETIF_F_TSO
	.get_tso		= ethtool_op_get_tso,
	.set_tso		= e1000_set_tso,
#endif
	.self_test		= e1000_diag_test,
	.get_strings		= e1000_get_strings,
	.phys_id		= e1000_phys_id,
	.get_ethtool_stats	= e1000_get_ethtool_stats,
	.self_test_count	= e1000_get_self_test_count,
	.get_stats_count	= e1000_get_stats_count,
	.get_coalesce		= e1000_get_coalesce,
	.set_coalesce		= e1000_set_coalesce,
};

void e1000_set_ethtool_ops(struct net_device *netdev)
{
	/* have to "undeclare" const on this struct to remove warnings */
	SET_ETHTOOL_OPS(netdev, (struct ethtool_ops *)&e1000_ethtool_ops);
}
#endif /* SIOCETHTOOL */