e1000_ethtool.c

e1000 8.0.1 version.最新的e1000 linux下的驱动

					tx_ring->buffer_info[k].dma,
				    	tx_ring->buffer_info[k].length,
				    	PCI_DMA_TODEVICE);
			if (unlikely(++k == tx_ring->count)) k = 0;
		}
		E1000_WRITE_REG(&adapter->hw, E1000_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,
			                E1000_RXBUFFER_2048,
			                PCI_DMA_FROMDEVICE);

			ret_val = e1000_check_lbtest_frame(
					rx_ring->buffer_info[l].skb,
				   	1024);
			if (!ret_val)
				good_cnt++;
			if (unlikely(++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 && 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)
{
	/* PHY loopback cannot be performed if SoL/IDER
	 * sessions are active */
	if (e1000_check_reset_block(&adapter->hw)) {
		DPRINTK(DRV, ERR, "Cannot do PHY loopback test "
		        "when SoL/IDER is active.\n");
		*data = 0;
		goto out;
	}

	if ((*data = e1000_setup_desc_rings(adapter)))
		goto out;
	if ((*data = e1000_setup_loopback_test(adapter)))
		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)
{
	*data = 0;
	if (adapter->hw.phy.media_type == e1000_media_type_internal_serdes) {
		int i = 0;
		adapter->hw.mac.serdes_has_link = FALSE;

		/* 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.mac.serdes_has_link == TRUE)
				return *data;
			msleep(20);
		} while (i++ < 3750);

		*data = 1;
	} else {
		e1000_check_for_link(&adapter->hw);
		if (adapter->hw.mac.autoneg)
			msleep(4000);

		if (!(E1000_READ_REG(&adapter->hw, E1000_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, u64 *data)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	u16 autoneg_advertised;
	u8 forced_speed_duplex, 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;

		DPRINTK(HW, 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 */
		if (adapter->hw.phy.media_type == e1000_media_type_copper)
			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 = TRUE;
		e1000_reset(adapter);
		adapter->hw.phy.autoneg_wait_to_complete = FALSE;

		clear_bit(__E1000_TESTING, &adapter->state);
		if (if_running)
			dev_open(netdev);
	} else {
		DPRINTK(HW, 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 int e1000_wol_exclusion(struct e1000_adapter *adapter,
                               struct ethtool_wolinfo *wol)
{
	struct e1000_hw *hw = &adapter->hw;
	int retval = 1; /* fail by default */

	switch (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:
	case E1000_DEV_ID_82546GB_QUAD_COPPER:
	case E1000_DEV_ID_82546GB_PCIE:
		/* these don't support WoL at all */
		wol->supported = 0;
		break;
	case E1000_DEV_ID_82546EB_FIBER:
	case E1000_DEV_ID_82546GB_FIBER:
		/* Wake events not supported on port B */
		if (E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_FUNC_1) {
			wol->supported = 0;
			break;
		}
		/* return success for non excluded adapter ports */
		retval = 0;
		break;
	case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
		/* quad port adapters only support WoL on port A */
		if (!(adapter->flags & E1000_FLAG_QUAD_PORT_A)) {
			wol->supported = 0;
			break;
		}
		/* return success for non excluded adapter ports */
		retval = 0;
		break;
	default:
		/* dual port cards only support WoL on port A from now on
		 * unless it was enabled in the eeprom for port B
		 * so exclude FUNC_1 ports from having WoL enabled */
		if (E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_FUNC_1 &&
		    !adapter->eeprom_wol) {
			wol->supported = 0;
			break;
		}

		retval = 0;
	}

	return retval;
}

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

	wol->supported = WAKE_UCAST | WAKE_MCAST |
	                 WAKE_BCAST | WAKE_MAGIC;
	wol->wolopts = 0;

	/* this function will set ->supported = 0 and return 1 if wol is not
	 * supported by this hardware */
	if (e1000_wol_exclusion(adapter, wol))
		return;

	/* apply any specific unsupported masks here */
	switch (adapter->hw.device_id) {
	case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
		/* KSP3 does not support UCAST wake-ups */
		wol->supported &= ~WAKE_UCAST;

		if (adapter->wol & E1000_WUFC_EX)
			DPRINTK(DRV, ERR, "Interface does not support "
		        "directed (unicast) frame wake-up packets\n");
		break;
	default:
		break;
	}

	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(netdev);
	struct e1000_hw *hw = &adapter->hw;

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

	if (e1000_wol_exclusion(adapter, wol))
		return wol->wolopts ? -EOPNOTSUPP : 0;

	switch (hw->device_id) {
	case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
		if (wol->wolopts & WAKE_UCAST) {
			DPRINTK(DRV, ERR, "Interface does not support "
		        "directed (unicast) frame wake-up packets\n");
			return -EOPNOTSUPP;
		}
		break;
	default:
		break;
	}

	/* 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;

	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, u32 data)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);

	if (!data)
		data = INT_MAX;

	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);
	msleep_interruptible(data * 1000);
	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_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;

	return 0;
}

static int e1000_set_coalesce(struct net_device *netdev,
			      struct ethtool_coalesce *ec)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);

	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))
		return -EINVAL;

	if (!(adapter->flags & E1000_FLAG_HAS_INTR_MODERATION))
		return -ENOTSUPP;

	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)
		E1000_WRITE_REG(&adapter->hw, E1000_ITR,
			1000000000 / (adapter->itr * 256));
	else
		E1000_WRITE_REG(&adapter->hw, E1000_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 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, 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;
	}
/*	BUG_ON(i != E1000_STATS_LEN); */
}

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,
			E1000_TEST_LEN*ETH_GSTRING_LEN);
		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;
		}
/*		BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */
		break;
	}
}

static 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,
#ifdef ETHTOOL_GPERMADDR
	.get_perm_addr          = ethtool_op_get_perm_addr,
#endif
	.get_coalesce           = e1000_get_coalesce,
	.set_coalesce           = e1000_set_coalesce,
};

void e1000_set_ethtool_ops(struct net_device *netdev)
{
	SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
}
#endif	/* SIOCETHTOOL */