1 files changed, 368 insertions, 0 deletions

diff --git a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
index 7674cb6e5700..f0b24366da18 100644
--- a/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
+++ b/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
@@ -8,7 +8,12 @@
 #include <linux/string.h>
 #include <linux/aer.h>
 #include <linux/etherdevice.h>
+#include <net/ip.h>
 
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_hw.h"
+#include "ngbe_type.h"
+#include "ngbe_hw.h"
 #include "ngbe.h"
 char ngbe_driver_name[] = "ngbe";
 
@@ -34,6 +39,247 @@ static const struct pci_device_id ngbe_pci_tbl[] = {
 	{ .device = 0 }
 };
 
+static void ngbe_mac_set_default_filter(struct ngbe_adapter *adapter, u8 *addr)
+{
+	struct ngbe_hw *hw = &adapter->hw;
+
+	memcpy(&adapter->mac_table[0].addr, addr, ETH_ALEN);
+	adapter->mac_table[0].pools = 1ULL;
+	adapter->mac_table[0].state = (NGBE_MAC_STATE_DEFAULT |
+				       NGBE_MAC_STATE_IN_USE);
+	wx_set_rar(&hw->wxhw, 0, adapter->mac_table[0].addr,
+		   adapter->mac_table[0].pools,
+		   WX_PSR_MAC_SWC_AD_H_AV);
+}
+
+/**
+ *  ngbe_init_type_code - Initialize the shared code
+ *  @hw: pointer to hardware structure
+ **/
+static void ngbe_init_type_code(struct ngbe_hw *hw)
+{
+	int wol_mask = 0, ncsi_mask = 0;
+	struct wx_hw *wxhw = &hw->wxhw;
+	u16 type_mask = 0;
+
+	wxhw->mac.type = wx_mac_em;
+	type_mask = (u16)(wxhw->subsystem_device_id & NGBE_OEM_MASK);
+	ncsi_mask = wxhw->subsystem_device_id & NGBE_NCSI_MASK;
+	wol_mask = wxhw->subsystem_device_id & NGBE_WOL_MASK;
+
+	switch (type_mask) {
+	case NGBE_SUBID_M88E1512_SFP:
+	case NGBE_SUBID_LY_M88E1512_SFP:
+		hw->phy.type = ngbe_phy_m88e1512_sfi;
+		break;
+	case NGBE_SUBID_M88E1512_RJ45:
+		hw->phy.type = ngbe_phy_m88e1512;
+		break;
+	case NGBE_SUBID_M88E1512_MIX:
+		hw->phy.type = ngbe_phy_m88e1512_unknown;
+		break;
+	case NGBE_SUBID_YT8521S_SFP:
+	case NGBE_SUBID_YT8521S_SFP_GPIO:
+	case NGBE_SUBID_LY_YT8521S_SFP:
+		hw->phy.type = ngbe_phy_yt8521s_sfi;
+		break;
+	case NGBE_SUBID_INTERNAL_YT8521S_SFP:
+	case NGBE_SUBID_INTERNAL_YT8521S_SFP_GPIO:
+		hw->phy.type = ngbe_phy_internal_yt8521s_sfi;
+		break;
+	case NGBE_SUBID_RGMII_FPGA:
+	case NGBE_SUBID_OCP_CARD:
+		fallthrough;
+	default:
+		hw->phy.type = ngbe_phy_internal;
+		break;
+	}
+
+	if (hw->phy.type == ngbe_phy_internal ||
+	    hw->phy.type == ngbe_phy_internal_yt8521s_sfi)
+		hw->mac_type = ngbe_mac_type_mdi;
+	else
+		hw->mac_type = ngbe_mac_type_rgmii;
+
+	hw->wol_enabled = (wol_mask == NGBE_WOL_SUP) ? 1 : 0;
+	hw->ncsi_enabled = (ncsi_mask == NGBE_NCSI_MASK ||
+			   type_mask == NGBE_SUBID_OCP_CARD) ? 1 : 0;
+
+	switch (type_mask) {
+	case NGBE_SUBID_LY_YT8521S_SFP:
+	case NGBE_SUBID_LY_M88E1512_SFP:
+	case NGBE_SUBID_YT8521S_SFP_GPIO:
+	case NGBE_SUBID_INTERNAL_YT8521S_SFP_GPIO:
+		hw->gpio_ctrl = 1;
+		break;
+	default:
+		hw->gpio_ctrl = 0;
+		break;
+	}
+}
+
+/**
+ * ngbe_init_rss_key - Initialize adapter RSS key
+ * @adapter: device handle
+ *
+ * Allocates and initializes the RSS key if it is not allocated.
+ **/
+static inline int ngbe_init_rss_key(struct ngbe_adapter *adapter)
+{
+	u32 *rss_key;
+
+	if (!adapter->rss_key) {
+		rss_key = kzalloc(NGBE_RSS_KEY_SIZE, GFP_KERNEL);
+		if (unlikely(!rss_key))
+			return -ENOMEM;
+
+		netdev_rss_key_fill(rss_key, NGBE_RSS_KEY_SIZE);
+		adapter->rss_key = rss_key;
+	}
+
+	return 0;
+}
+
+/**
+ * ngbe_sw_init - Initialize general software structures
+ * @adapter: board private structure to initialize
+ **/
+static int ngbe_sw_init(struct ngbe_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	struct ngbe_hw *hw = &adapter->hw;
+	struct wx_hw *wxhw = &hw->wxhw;
+	u16 msix_count = 0;
+	int err = 0;
+
+	wxhw->hw_addr = adapter->io_addr;
+	wxhw->pdev = pdev;
+
+	/* PCI config space info */
+	err = wx_sw_init(wxhw);
+	if (err < 0) {
+		netif_err(adapter, probe, adapter->netdev,
+			  "Read of internal subsystem device id failed\n");
+		return err;
+	}
+
+	/* mac type, phy type , oem type */
+	ngbe_init_type_code(hw);
+
+	wxhw->mac.max_rx_queues = NGBE_MAX_RX_QUEUES;
+	wxhw->mac.max_tx_queues = NGBE_MAX_TX_QUEUES;
+	wxhw->mac.num_rar_entries = NGBE_RAR_ENTRIES;
+	/* Set common capability flags and settings */
+	adapter->max_q_vectors = NGBE_MAX_MSIX_VECTORS;
+
+	err = wx_get_pcie_msix_counts(wxhw, &msix_count, NGBE_MAX_MSIX_VECTORS);
+	if (err)
+		dev_err(&pdev->dev, "Do not support MSI-X\n");
+	wxhw->mac.max_msix_vectors = msix_count;
+
+	adapter->mac_table = kcalloc(wxhw->mac.num_rar_entries,
+				     sizeof(struct ngbe_mac_addr),
+				     GFP_KERNEL);
+	if (!adapter->mac_table) {
+		dev_err(&pdev->dev, "mac_table allocation failed: %d\n", err);
+		return -ENOMEM;
+	}
+
+	if (ngbe_init_rss_key(adapter))
+		return -ENOMEM;
+
+	/* enable itr by default in dynamic mode */
+	adapter->rx_itr_setting = 1;
+	adapter->tx_itr_setting = 1;
+
+	/* set default ring sizes */
+	adapter->tx_ring_count = NGBE_DEFAULT_TXD;
+	adapter->rx_ring_count = NGBE_DEFAULT_RXD;
+
+	/* set default work limits */
+	adapter->tx_work_limit = NGBE_DEFAULT_TX_WORK;
+	adapter->rx_work_limit = NGBE_DEFAULT_RX_WORK;
+
+	return 0;
+}
+
+static void ngbe_down(struct ngbe_adapter *adapter)
+{
+	netif_carrier_off(adapter->netdev);
+	netif_tx_disable(adapter->netdev);
+};
+
+/**
+ * ngbe_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+ * Returns 0 on success, negative value on failure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP).
+ **/
+static int ngbe_open(struct net_device *netdev)
+{
+	struct ngbe_adapter *adapter = netdev_priv(netdev);
+	struct ngbe_hw *hw = &adapter->hw;
+	struct wx_hw *wxhw = &hw->wxhw;
+
+	wx_control_hw(wxhw, true);
+
+	return 0;
+}
+
+/**
+ * ngbe_close - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * Returns 0, this is not allowed to fail
+ *
+ * The close entry point is called when an interface is de-activated
+ * by the OS.  The hardware is still under the drivers control, but
+ * needs to be disabled.  A global MAC reset is issued to stop the
+ * hardware, and all transmit and receive resources are freed.
+ **/
+static int ngbe_close(struct net_device *netdev)
+{
+	struct ngbe_adapter *adapter = netdev_priv(netdev);
+
+	ngbe_down(adapter);
+	wx_control_hw(&adapter->hw.wxhw, false);
+
+	return 0;
+}
+
+static netdev_tx_t ngbe_xmit_frame(struct sk_buff *skb,
+				   struct net_device *netdev)
+{
+	return NETDEV_TX_OK;
+}
+
+/**
+ * ngbe_set_mac - Change the Ethernet Address of the NIC
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int ngbe_set_mac(struct net_device *netdev, void *p)
+{
+	struct ngbe_adapter *adapter = netdev_priv(netdev);
+	struct wx_hw *wxhw = &adapter->hw.wxhw;
+	struct sockaddr *addr = p;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	eth_hw_addr_set(netdev, addr->sa_data);
+	memcpy(wxhw->mac.addr, addr->sa_data, netdev->addr_len);
+
+	ngbe_mac_set_default_filter(adapter, wxhw->mac.addr);
+
+	return 0;
+}
+
 static void ngbe_dev_shutdown(struct pci_dev *pdev, bool *enable_wake)
 {
 	struct ngbe_adapter *adapter = pci_get_drvdata(pdev);
@@ -41,13 +287,22 @@ static void ngbe_dev_shutdown(struct pci_dev *pdev, bool *enable_wake)
 
 	netif_device_detach(netdev);
 
+	rtnl_lock();
+	if (netif_running(netdev))
+		ngbe_down(adapter);
+	rtnl_unlock();
+	wx_control_hw(&adapter->hw.wxhw, false);
+
 	pci_disable_device(pdev);
 }
 
 static void ngbe_shutdown(struct pci_dev *pdev)
 {
+	struct ngbe_adapter *adapter = pci_get_drvdata(pdev);
 	bool wake;
 
+	wake = !!adapter->wol;
+
 	ngbe_dev_shutdown(pdev, &wake);
 
 	if (system_state == SYSTEM_POWER_OFF) {
@@ -56,6 +311,14 @@ static void ngbe_shutdown(struct pci_dev *pdev)
 	}
 }
 
+static const struct net_device_ops ngbe_netdev_ops = {
+	.ndo_open               = ngbe_open,
+	.ndo_stop               = ngbe_close,
+	.ndo_start_xmit         = ngbe_xmit_frame,
+	.ndo_validate_addr      = eth_validate_addr,
+	.ndo_set_mac_address    = ngbe_set_mac,
+};
+
 /**
  * ngbe_probe - Device Initialization Routine
  * @pdev: PCI device information struct
@@ -71,7 +334,14 @@ static int ngbe_probe(struct pci_dev *pdev,
 		      const struct pci_device_id __always_unused *ent)
 {
 	struct ngbe_adapter *adapter = NULL;
+	struct ngbe_hw *hw = NULL;
+	struct wx_hw *wxhw = NULL;
 	struct net_device *netdev;
+	u32 e2rom_cksum_cap = 0;
+	static int func_nums;
+	u16 e2rom_ver = 0;
+	u32 etrack_id = 0;
+	u32 saved_ver = 0;
 	int err;
 
 	err = pci_enable_device_mem(pdev);
@@ -111,6 +381,9 @@ static int ngbe_probe(struct pci_dev *pdev,
 	adapter = netdev_priv(netdev);
 	adapter->netdev = netdev;
 	adapter->pdev = pdev;
+	hw = &adapter->hw;
+	wxhw = &hw->wxhw;
+	adapter->msg_enable = BIT(3) - 1;
 
 	adapter->io_addr = devm_ioremap(&pdev->dev,
 					pci_resource_start(pdev, 0),
@@ -120,12 +393,101 @@ static int ngbe_probe(struct pci_dev *pdev,
 		goto err_pci_release_regions;
 	}
 
+	netdev->netdev_ops = &ngbe_netdev_ops;
+
 	netdev->features |= NETIF_F_HIGHDMA;
 
+	adapter->bd_number = func_nums;
+	/* setup the private structure */
+	err = ngbe_sw_init(adapter);
+	if (err)
+		goto err_free_mac_table;
+
+	/* check if flash load is done after hw power up */
+	err = wx_check_flash_load(wxhw, NGBE_SPI_ILDR_STATUS_PERST);
+	if (err)
+		goto err_free_mac_table;
+	err = wx_check_flash_load(wxhw, NGBE_SPI_ILDR_STATUS_PWRRST);
+	if (err)
+		goto err_free_mac_table;
+
+	err = wx_mng_present(wxhw);
+	if (err) {
+		dev_err(&pdev->dev, "Management capability is not present\n");
+		goto err_free_mac_table;
+	}
+
+	err = ngbe_reset_hw(hw);
+	if (err) {
+		dev_err(&pdev->dev, "HW Init failed: %d\n", err);
+		goto err_free_mac_table;
+	}
+
+	if (wxhw->bus.func == 0) {
+		wr32(wxhw, NGBE_CALSUM_CAP_STATUS, 0x0);
+		wr32(wxhw, NGBE_EEPROM_VERSION_STORE_REG, 0x0);
+	} else {
+		e2rom_cksum_cap = rd32(wxhw, NGBE_CALSUM_CAP_STATUS);
+		saved_ver = rd32(wxhw, NGBE_EEPROM_VERSION_STORE_REG);
+	}
+
+	wx_init_eeprom_params(wxhw);
+	if (wxhw->bus.func == 0 || e2rom_cksum_cap == 0) {
+		/* make sure the EEPROM is ready */
+		err = ngbe_eeprom_chksum_hostif(hw);
+		if (err) {
+			dev_err(&pdev->dev, "The EEPROM Checksum Is Not Valid\n");
+			err = -EIO;
+			goto err_free_mac_table;
+		}
+	}
+
+	adapter->wol = 0;
+	if (hw->wol_enabled)
+		adapter->wol = NGBE_PSR_WKUP_CTL_MAG;
+
+	hw->wol_enabled = !!(adapter->wol);
+	wr32(wxhw, NGBE_PSR_WKUP_CTL, adapter->wol);
+
+	device_set_wakeup_enable(&pdev->dev, adapter->wol);
+
+	/* Save off EEPROM version number and Option Rom version which
+	 * together make a unique identify for the eeprom
+	 */
+	if (saved_ver) {
+		etrack_id = saved_ver;
+	} else {
+		wx_read_ee_hostif(wxhw,
+				  wxhw->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_H,
+				  &e2rom_ver);
+		etrack_id = e2rom_ver << 16;
+		wx_read_ee_hostif(wxhw,
+				  wxhw->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_L,
+				  &e2rom_ver);
+		etrack_id |= e2rom_ver;
+		wr32(wxhw, NGBE_EEPROM_VERSION_STORE_REG, etrack_id);
+	}
+
+	eth_hw_addr_set(netdev, wxhw->mac.perm_addr);
+	ngbe_mac_set_default_filter(adapter, wxhw->mac.perm_addr);
+
+	err = register_netdev(netdev);
+	if (err)
+		goto err_register;
+
 	pci_set_drvdata(pdev, adapter);
 
+	netif_info(adapter, probe, netdev,
+		   "PHY: %s, PBA No: Wang Xun GbE Family Controller\n",
+		   hw->phy.type == ngbe_phy_internal ? "Internal" : "External");
+	netif_info(adapter, probe, netdev, "%pM\n", netdev->dev_addr);
+
 	return 0;
 
+err_register:
+	wx_control_hw(wxhw, false);
+err_free_mac_table:
+	kfree(adapter->mac_table);
 err_pci_release_regions:
 	pci_disable_pcie_error_reporting(pdev);
 	pci_release_selected_regions(pdev,
@@ -146,9 +508,15 @@ err_pci_disable_dev:
  **/
 static void ngbe_remove(struct pci_dev *pdev)
 {
+	struct ngbe_adapter *adapter = pci_get_drvdata(pdev);
+	struct net_device *netdev;
+
+	netdev = adapter->netdev;
+	unregister_netdev(netdev);
 	pci_release_selected_regions(pdev,
 				     pci_select_bars(pdev, IORESOURCE_MEM));
 
+	kfree(adapter->mac_table);
 	pci_disable_pcie_error_reporting(pdev);
 
 	pci_disable_device(pdev);