e1000_ethtool.c

linux-2.4.29操作系统的源码

{
	uint32_t rctl;
	uint16_t phy_reg;

	rctl = E1000_READ_REG(&adapter->hw, RCTL);
	rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
	E1000_WRITE_REG(&adapter->hw, RCTL, rctl);

	if(adapter->hw.media_type == e1000_media_type_copper ||
	   ((adapter->hw.media_type == e1000_media_type_fiber ||
	     adapter->hw.media_type == e1000_media_type_internal_serdes) &&
	    (adapter->hw.mac_type == e1000_82545 ||
	     adapter->hw.mac_type == e1000_82546 ||
	     adapter->hw.mac_type == e1000_82545_rev_3 ||
	     adapter->hw.mac_type == e1000_82546_rev_3))) {
		adapter->hw.autoneg = TRUE;
		e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &phy_reg);
		if(phy_reg & MII_CR_LOOPBACK) {
			phy_reg &= ~MII_CR_LOOPBACK;
			e1000_write_phy_reg(&adapter->hw, PHY_CTRL, phy_reg);
			e1000_phy_reset(&adapter->hw);
		}
	}
}

static void
e1000_create_lbtest_frame(struct sk_buff *skb, unsigned int frame_size)
{
	memset(skb->data, 0xFF, frame_size);
	frame_size = (frame_size % 2) ? (frame_size - 1) : frame_size;
	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 = (frame_size % 2) ? (frame_size - 1) : frame_size;
	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_desc_ring *txdr = &adapter->test_tx_ring;
	struct e1000_desc_ring *rxdr = &adapter->test_rx_ring;
	struct pci_dev *pdev = adapter->pdev;
	int i;

	E1000_WRITE_REG(&adapter->hw, RDT, rxdr->count - 1);

	for(i = 0; i < 64; i++) {
		e1000_create_lbtest_frame(txdr->buffer_info[i].skb, 1024);
		pci_dma_sync_single(pdev, txdr->buffer_info[i].dma,
				    txdr->buffer_info[i].length,
				    PCI_DMA_TODEVICE);
	}
	E1000_WRITE_REG(&adapter->hw, TDT, i);

	msec_delay(200);

	i = 0;
	do {
		pci_dma_sync_single(pdev, rxdr->buffer_info[i].dma,
					    rxdr->buffer_info[i].length,
					    PCI_DMA_FROMDEVICE);

		if (!e1000_check_lbtest_frame(rxdr->buffer_info[i++].skb, 1024))
			return 0;
	} while (i < 64);

	return 13;
}

static int
e1000_loopback_test(struct e1000_adapter *adapter, uint64_t *data)
{
	if((*data = e1000_setup_desc_rings(adapter))) goto err_loopback;
	if((*data = e1000_setup_loopback_test(adapter))) goto err_loopback;
	*data = e1000_run_loopback_test(adapter);
	e1000_loopback_cleanup(adapter);
	e1000_free_desc_rings(adapter);
err_loopback:
	return *data;
}

static int
e1000_link_test(struct e1000_adapter *adapter, uint64_t *data)
{
	*data = 0;

	if (adapter->hw.media_type == e1000_media_type_internal_serdes) {
		int i = 0;
		adapter->hw.serdes_link_down = TRUE;

		/* on some blade server designs link establishment */
		/* could take as long as 2-3 minutes.              */
		do {
			e1000_check_for_link(&adapter->hw);
			if (adapter->hw.serdes_link_down == FALSE)
				return *data;
			msec_delay(20);
		} while (i++ < 3750);

		*data = 1; 
	} else {
		e1000_check_for_link(&adapter->hw);

		if(!(E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_LU)) {
			*data = 1;
		}
	}
	return *data;
}

static int 
e1000_diag_test_count(struct net_device *netdev)
{
	return E1000_TEST_LEN;
}

static void
e1000_diag_test(struct net_device *netdev,
		   struct ethtool_test *eth_test, uint64_t *data)
{
	struct e1000_adapter *adapter = netdev->priv;
	boolean_t if_running = netif_running(netdev);

	if(eth_test->flags == ETH_TEST_FL_OFFLINE) {
		/* Offline tests */

		/* save speed, duplex, autoneg settings */
		uint16_t autoneg_advertised = adapter->hw.autoneg_advertised;
		uint8_t forced_speed_duplex = adapter->hw.forced_speed_duplex;
		uint8_t autoneg = adapter->hw.autoneg;

		/* 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)
			e1000_down(adapter);
		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);
		if(e1000_loopback_test(adapter, &data[3]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

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

		e1000_reset(adapter);
		if(if_running)
			e1000_up(adapter);
	} else {
		/* Online tests */
		if(e1000_link_test(adapter, &data[4]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

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

static void
e1000_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
	struct e1000_adapter *adapter = netdev->priv;
	struct e1000_hw *hw = &adapter->hw;

	switch(adapter->hw.device_id) {
	case E1000_DEV_ID_82542:
	case E1000_DEV_ID_82543GC_FIBER:
	case E1000_DEV_ID_82543GC_COPPER:
	case E1000_DEV_ID_82544EI_FIBER:
	case E1000_DEV_ID_82546EB_QUAD_COPPER:
	case E1000_DEV_ID_82545EM_FIBER:
	case E1000_DEV_ID_82545EM_COPPER:
		wol->supported = 0;
		wol->wolopts   = 0;
		return;

	case E1000_DEV_ID_82546EB_FIBER:
	case E1000_DEV_ID_82546GB_FIBER:
		/* Wake events only supported on port A for dual fiber */
		if(E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) {
			wol->supported = 0;
			wol->wolopts   = 0;
			return;
		}
		/* Fall Through */

	default:
		wol->supported = WAKE_UCAST | WAKE_MCAST |
				 WAKE_BCAST | WAKE_MAGIC;

		wol->wolopts = 0;
		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;
		return;
	}
}

static int
e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
	struct e1000_adapter *adapter = netdev->priv;
	struct e1000_hw *hw = &adapter->hw;

	switch(adapter->hw.device_id) {
	case E1000_DEV_ID_82542:
	case E1000_DEV_ID_82543GC_FIBER:
	case E1000_DEV_ID_82543GC_COPPER:
	case E1000_DEV_ID_82544EI_FIBER:
	case E1000_DEV_ID_82546EB_QUAD_COPPER:
	case E1000_DEV_ID_82545EM_FIBER:
	case E1000_DEV_ID_82545EM_COPPER:
		return wol->wolopts ? -EOPNOTSUPP : 0;

	case E1000_DEV_ID_82546EB_FIBER:
	case E1000_DEV_ID_82546GB_FIBER:
		/* Wake events only supported on port A for dual fiber */
		if(E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)
			return wol->wolopts ? -EOPNOTSUPP : 0;
		/* Fall Through */

	default:
		if(wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
			return -EOPNOTSUPP;

		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;
	}

	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))
		e1000_led_off(&adapter->hw);
	else
		e1000_led_on(&adapter->hw);

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

static int
e1000_phys_id(struct net_device *netdev, uint32_t data)
{
	struct e1000_adapter *adapter = netdev->priv;

	if(!data || data > (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ))
		data = (uint32_t)(MAX_SCHEDULE_TIMEOUT / HZ);

	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;
	}

	e1000_setup_led(&adapter->hw);
	mod_timer(&adapter->blink_timer, jiffies);

	set_current_state(TASK_INTERRUPTIBLE);

	schedule_timeout(data * HZ);
	del_timer_sync(&adapter->blink_timer);
	e1000_led_off(&adapter->hw);
	clear_bit(E1000_LED_ON, &adapter->led_status);
	e1000_cleanup_led(&adapter->hw);

	return 0;
}

static int
e1000_nway_reset(struct net_device *netdev)
{
	struct e1000_adapter *adapter = netdev->priv;
	if(netif_running(netdev)) {
		e1000_down(adapter);
		e1000_up(adapter);
	}
	return 0;
}

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

static void 
e1000_get_ethtool_stats(struct net_device *netdev, 
		struct ethtool_stats *stats, uint64_t *data)
{
	struct e1000_adapter *adapter = netdev->priv;
	int i;

	e1000_update_stats(adapter);
	for(i = 0; i < E1000_STATS_LEN; i++) {
		char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;	
		data[i] = (e1000_gstrings_stats[i].sizeof_stat == 
			sizeof(uint64_t)) ? *(uint64_t *)p : *(uint32_t *)p;
	}
}

static void 
e1000_get_strings(struct net_device *netdev, uint32_t stringset, uint8_t *data)
{
	int i;

	switch(stringset) {
	case ETH_SS_TEST:
		memcpy(data, *e1000_gstrings_test, 
			E1000_TEST_LEN*ETH_GSTRING_LEN);
		break;
	case ETH_SS_STATS:
		for (i=0; i < E1000_STATS_LEN; i++) {
			memcpy(data + i * ETH_GSTRING_LEN, 
			e1000_gstrings_stats[i].stat_string,
			ETH_GSTRING_LEN);
		}
		break;
	}
}

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               = ethtool_op_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_count        = e1000_diag_test_count,
	.self_test              = e1000_diag_test,
	.get_strings            = e1000_get_strings,
	.phys_id                = e1000_phys_id,
	.get_stats_count        = e1000_get_stats_count,
	.get_ethtool_stats      = e1000_get_ethtool_stats,
};

void set_ethtool_ops(struct net_device *netdev)
{
	SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
}