net: ngbe: Initialize sw info and register netdev

Initialize ngbe mac/phy type.
Check whether the firmware is initialized.
Initialize ngbe hw and register netdev.
Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/wangxun/Kconfig

@@ -24,6 +24,7 @@ config LIBWX
 config NGBE
 	tristate "Wangxun(R) GbE PCI Express adapters support"
 	depends on PCI
+	select LIBWX
 	help
 	  This driver supports Wangxun(R) GbE PCI Express family of
 	  adapters.

drivers/net/ethernet/wangxun/libwx/wx_hw.c

@@ -162,7 +162,7 @@ static int wx_acquire_sw_sync(struct wx_hw *wxhw, u32 mask)
  *   So we will leave this up to the caller to read back the data
  *   in these cases.
  **/
-static int wx_host_interface_command(struct wx_hw *wxhw, u32 *buffer,
+int wx_host_interface_command(struct wx_hw *wxhw, u32 *buffer,
 			      u32 length, u32 timeout, bool return_data)
 {
 	u32 hdr_size = sizeof(struct wx_hic_hdr);
@@ -265,6 +265,7 @@ static int wx_host_interface_command(struct wx_hw *wxhw, u32 *buffer,
 	wx_release_sw_sync(wxhw, WX_MNG_SWFW_SYNC_SW_MB);
 	return status;
 }
+EXPORT_SYMBOL(wx_host_interface_command);
 
 /**
  *  wx_read_ee_hostif_data - Read EEPROM word using a host interface cmd
@@ -870,6 +871,41 @@ void wx_reset_misc(struct wx_hw *wxhw)
 }
 EXPORT_SYMBOL(wx_reset_misc);
 
+/**
+ *  wx_get_pcie_msix_counts - Gets MSI-X vector count
+ *  @wxhw: pointer to hardware structure
+ *  @msix_count: number of MSI interrupts that can be obtained
+ *  @max_msix_count: number of MSI interrupts that mac need
+ *
+ *  Read PCIe configuration space, and get the MSI-X vector count from
+ *  the capabilities table.
+ **/
+int wx_get_pcie_msix_counts(struct wx_hw *wxhw, u16 *msix_count, u16 max_msix_count)
+{
+	struct pci_dev *pdev = wxhw->pdev;
+	struct device *dev = &pdev->dev;
+	int pos;
+
+	*msix_count = 1;
+	pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
+	if (!pos) {
+		dev_err(dev, "Unable to find MSI-X Capabilities\n");
+		return -EINVAL;
+	}
+	pci_read_config_word(pdev,
+			     pos + PCI_MSIX_FLAGS,
+			     msix_count);
+	*msix_count &= WX_PCIE_MSIX_TBL_SZ_MASK;
+	/* MSI-X count is zero-based in HW */
+	*msix_count += 1;
+
+	if (*msix_count > max_msix_count)
+		*msix_count = max_msix_count;
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_get_pcie_msix_counts);
+
 int wx_sw_init(struct wx_hw *wxhw)
 {
 	struct pci_dev *pdev = wxhw->pdev;

drivers/net/ethernet/wangxun/libwx/wx_hw.h

@@ -7,6 +7,8 @@
 int wx_check_flash_load(struct wx_hw *hw, u32 check_bit);
 void wx_control_hw(struct wx_hw *wxhw, bool drv);
 int wx_mng_present(struct wx_hw *wxhw);
+int wx_host_interface_command(struct wx_hw *wxhw, u32 *buffer,
+			      u32 length, u32 timeout, bool return_data);
 int wx_read_ee_hostif(struct wx_hw *wxhw, u16 offset, u16 *data);
 int wx_read_ee_hostif_buffer(struct wx_hw *wxhw,
 			     u16 offset, u16 words, u16 *data);
@@ -20,6 +22,7 @@ void wx_disable_rx(struct wx_hw *wxhw);
 int wx_disable_pcie_master(struct wx_hw *wxhw);
 int wx_stop_adapter(struct wx_hw *wxhw);
 void wx_reset_misc(struct wx_hw *wxhw);
+int wx_get_pcie_msix_counts(struct wx_hw *wxhw, u16 *msix_count, u16 max_msix_count);
 int wx_sw_init(struct wx_hw *wxhw);
 
 #endif /* _WX_HW_H_ */

drivers/net/ethernet/wangxun/libwx/wx_type.h

@@ -14,6 +14,10 @@
 #define WX_WOL_SUP                              0x4000
 #define WX_WOL_MASK                             0x4000
 
+/* MSI-X capability fields masks */
+#define WX_PCIE_MSIX_TBL_SZ_MASK                0x7FF
+#define WX_PCI_LINK_STATUS                      0xB2
+
 /**************** Global Registers ****************************/
 /* chip control Registers */
 #define WX_MIS_PWR                   0x10000
@@ -255,6 +259,8 @@ struct wx_mac_info {
 	u32 num_rar_entries;
 	u32 max_tx_queues;
 	u32 max_rx_queues;
+
+	u16 max_msix_vectors;
 	struct wx_thermal_sensor_data sensor;
 };
 

drivers/net/ethernet/wangxun/ngbe/Makefile

@@ -6,4 +6,4 @@
 
 obj-$(CONFIG_NGBE) += ngbe.o
 
-ngbe-objs := ngbe_main.o
+ngbe-objs := ngbe_main.o ngbe_hw.o

drivers/net/ethernet/wangxun/ngbe/ngbe.h

@@ -11,12 +11,67 @@
 #define NGBE_MAX_RX_QUEUES		(NGBE_MAX_FDIR_INDICES + 1)
 #define NGBE_MAX_TX_QUEUES		(NGBE_MAX_FDIR_INDICES + 1)
 
+#define NGBE_ETH_LENGTH_OF_ADDRESS	6
+#define NGBE_MAX_MSIX_VECTORS		0x09
+#define NGBE_RAR_ENTRIES		32
+
+/* TX/RX descriptor defines */
+#define NGBE_DEFAULT_TXD		512 /* default ring size */
+#define NGBE_DEFAULT_TX_WORK		256
+#define NGBE_MAX_TXD			8192
+#define NGBE_MIN_TXD			128
+
+#define NGBE_DEFAULT_RXD		512 /* default ring size */
+#define NGBE_DEFAULT_RX_WORK		256
+#define NGBE_MAX_RXD			8192
+#define NGBE_MIN_RXD			128
+
+#define NGBE_MAC_STATE_DEFAULT		0x1
+#define NGBE_MAC_STATE_MODIFIED		0x2
+#define NGBE_MAC_STATE_IN_USE		0x4
+
+struct ngbe_mac_addr {
+	u8 addr[ETH_ALEN];
+	u16 state; /* bitmask */
+	u64 pools;
+};
+
 /* board specific private data structure */
 struct ngbe_adapter {
 	u8 __iomem *io_addr;    /* Mainly for iounmap use */
 	/* OS defined structs */
 	struct net_device *netdev;
 	struct pci_dev *pdev;
+
+	/* structs defined in ngbe_hw.h */
+	struct ngbe_hw hw;
+	struct ngbe_mac_addr *mac_table;
+	u16 msg_enable;
+
+	/* Tx fast path data */
+	int num_tx_queues;
+	u16 tx_itr_setting;
+	u16 tx_work_limit;
+
+	/* Rx fast path data */
+	int num_rx_queues;
+	u16 rx_itr_setting;
+	u16 rx_work_limit;
+
+	int num_q_vectors;      /* current number of q_vectors for device */
+	int max_q_vectors;      /* upper limit of q_vectors for device */
+
+	u32 tx_ring_count;
+	u32 rx_ring_count;
+
+#define NGBE_MAX_RETA_ENTRIES 128
+	u8 rss_indir_tbl[NGBE_MAX_RETA_ENTRIES];
+
+#define NGBE_RSS_KEY_SIZE     40  /* size of RSS Hash Key in bytes */
+	u32 *rss_key;
+	u32 wol;
+
+	u16 bd_number;
 };
 
 extern char ngbe_driver_name[];

drivers/net/ethernet/wangxun/ngbe/ngbe_hw.c

+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/etherdevice.h>
+#include <linux/iopoll.h>
+#include <linux/pci.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_hw.h"
+#include "ngbe_type.h"
+#include "ngbe_hw.h"
+#include "ngbe.h"
+
+int ngbe_eeprom_chksum_hostif(struct ngbe_hw *hw)
+{
+	struct wx_hic_read_shadow_ram buffer;
+	struct wx_hw *wxhw = &hw->wxhw;
+	int status;
+	int tmp;
+
+	buffer.hdr.req.cmd = NGBE_FW_EEPROM_CHECKSUM_CMD;
+	buffer.hdr.req.buf_lenh = 0;
+	buffer.hdr.req.buf_lenl = 0;
+	buffer.hdr.req.checksum = NGBE_FW_CMD_DEFAULT_CHECKSUM;
+	/* convert offset from words to bytes */
+	buffer.address = 0;
+	/* one word */
+	buffer.length = 0;
+
+	status = wx_host_interface_command(wxhw, (u32 *)&buffer, sizeof(buffer),
+					   WX_HI_COMMAND_TIMEOUT, false);
+
+	if (status < 0)
+		return status;
+	tmp = rd32a(wxhw, WX_MNG_MBOX, 1);
+	if (tmp == NGBE_FW_CMD_ST_PASS)
+		return 0;
+	return -EIO;
+}
+
+static int ngbe_reset_misc(struct ngbe_hw *hw)
+{
+	struct wx_hw *wxhw = &hw->wxhw;
+
+	wx_reset_misc(wxhw);
+	if (hw->mac_type == ngbe_mac_type_rgmii)
+		wr32(wxhw, NGBE_MDIO_CLAUSE_SELECT, 0xF);
+	if (hw->gpio_ctrl) {
+		/* gpio0 is used to power on/off control*/
+		wr32(wxhw, NGBE_GPIO_DDR, 0x1);
+		wr32(wxhw, NGBE_GPIO_DR, NGBE_GPIO_DR_0);
+	}
+	return 0;
+}
+
+/**
+ *  ngbe_reset_hw - Perform hardware reset
+ *  @hw: pointer to hardware structure
+ *
+ *  Resets the hardware by resetting the transmit and receive units, masks
+ *  and clears all interrupts, perform a PHY reset, and perform a link (MAC)
+ *  reset.
+ **/
+int ngbe_reset_hw(struct ngbe_hw *hw)
+{
+	struct wx_hw *wxhw = &hw->wxhw;
+	int status = 0;
+	u32 reset = 0;
+
+	/* Call adapter stop to disable tx/rx and clear interrupts */
+	status = wx_stop_adapter(wxhw);
+	if (status != 0)
+		return status;
+	reset = WX_MIS_RST_LAN_RST(wxhw->bus.func);
+	wr32(wxhw, WX_MIS_RST, reset | rd32(wxhw, WX_MIS_RST));
+	ngbe_reset_misc(hw);
+
+	/* Store the permanent mac address */
+	wx_get_mac_addr(wxhw, wxhw->mac.perm_addr);
+
+	/* reset num_rar_entries to 128 */
+	wxhw->mac.num_rar_entries = NGBE_RAR_ENTRIES;
+	wx_init_rx_addrs(wxhw);
+	pci_set_master(wxhw->pdev);
+
+	return 0;
+}

drivers/net/ethernet/wangxun/ngbe/ngbe_hw.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * WangXun Gigabit PCI Express Linux driver
+ * Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd.
+ */
+
+#ifndef _NGBE_HW_H_
+#define _NGBE_HW_H_
+
+int ngbe_eeprom_chksum_hostif(struct ngbe_hw *hw);
+int ngbe_reset_hw(struct ngbe_hw *hw);
+#endif /* _NGBE_HW_H_ */

drivers/net/ethernet/wangxun/ngbe/ngbe_type.h

@@ -8,11 +8,6 @@
 #include <linux/netdevice.h>
 
 /************ NGBE_register.h ************/
-/* Vendor ID */
-#ifndef PCI_VENDOR_ID_WANGXUN
-#define PCI_VENDOR_ID_WANGXUN			0x8088
-#endif
-
 /* Device IDs */
 #define NGBE_DEV_ID_EM_WX1860AL_W		0x0100
 #define NGBE_DEV_ID_EM_WX1860A2			0x0101
@@ -47,4 +42,98 @@
 #define NGBE_WOL_SUP				0x4000
 #define NGBE_WOL_MASK				0x4000
 
+/**************** EM Registers ****************************/
+/* chip control Registers */
+#define NGBE_MIS_PRB_CTL			0x10010
+/* FMGR Registers */
+#define NGBE_SPI_ILDR_STATUS			0x10120
+#define NGBE_SPI_ILDR_STATUS_PERST		BIT(0) /* PCIE_PERST is done */
+#define NGBE_SPI_ILDR_STATUS_PWRRST		BIT(1) /* Power on reset is done */
+#define NGBE_SPI_ILDR_STATUS_LAN_SW_RST(_i)	BIT((_i) + 9) /* lan soft reset done */
+
+/* Checksum and EEPROM pointers */
+#define NGBE_CALSUM_COMMAND			0xE9
+#define NGBE_CALSUM_CAP_STATUS			0x10224
+#define NGBE_EEPROM_VERSION_STORE_REG		0x1022C
+#define NGBE_SAN_MAC_ADDR_PTR			0x18
+#define NGBE_DEVICE_CAPS			0x1C
+#define NGBE_EEPROM_VERSION_L			0x1D
+#define NGBE_EEPROM_VERSION_H			0x1E
+
+/* Media-dependent registers. */
+#define NGBE_MDIO_CLAUSE_SELECT			0x11220
+
+/* GPIO Registers */
+#define NGBE_GPIO_DR				0x14800
+#define NGBE_GPIO_DDR				0x14804
+/*GPIO bit */
+#define NGBE_GPIO_DR_0				BIT(0) /* SDP0 Data Value */
+#define NGBE_GPIO_DR_1				BIT(1) /* SDP1 Data Value */
+#define NGBE_GPIO_DDR_0				BIT(0) /* SDP0 IO direction */
+#define NGBE_GPIO_DDR_1				BIT(1) /* SDP1 IO direction */
+
+/* Wake up registers */
+#define NGBE_PSR_WKUP_CTL			0x15B80
+/* Wake Up Filter Control Bit */
+#define NGBE_PSR_WKUP_CTL_LNKC			BIT(0) /* Link Status Change Wakeup Enable*/
+#define NGBE_PSR_WKUP_CTL_MAG			BIT(1) /* Magic Packet Wakeup Enable */
+#define NGBE_PSR_WKUP_CTL_EX			BIT(2) /* Directed Exact Wakeup Enable */
+#define NGBE_PSR_WKUP_CTL_MC			BIT(3) /* Directed Multicast Wakeup Enable*/
+#define NGBE_PSR_WKUP_CTL_BC			BIT(4) /* Broadcast Wakeup Enable */
+#define NGBE_PSR_WKUP_CTL_ARP			BIT(5) /* ARP Request Packet Wakeup Enable*/
+#define NGBE_PSR_WKUP_CTL_IPV4			BIT(6) /* Directed IPv4 Pkt Wakeup Enable */
+#define NGBE_PSR_WKUP_CTL_IPV6			BIT(7) /* Directed IPv6 Pkt Wakeup Enable */
+
+#define NGBE_FW_EEPROM_CHECKSUM_CMD		0xE9
+#define NGBE_FW_NVM_DATA_OFFSET			3
+#define NGBE_FW_CMD_DEFAULT_CHECKSUM		0xFF /* checksum always 0xFF */
+#define NGBE_FW_CMD_ST_PASS			0x80658383
+#define NGBE_FW_CMD_ST_FAIL			0x70657376
+
+enum ngbe_phy_type {
+	ngbe_phy_unknown = 0,
+	ngbe_phy_none,
+	ngbe_phy_internal,
+	ngbe_phy_m88e1512,
+	ngbe_phy_m88e1512_sfi,
+	ngbe_phy_m88e1512_unknown,
+	ngbe_phy_yt8521s,
+	ngbe_phy_yt8521s_sfi,
+	ngbe_phy_internal_yt8521s_sfi,
+	ngbe_phy_generic
+};
+
+enum ngbe_media_type {
+	ngbe_media_type_unknown = 0,
+	ngbe_media_type_fiber,
+	ngbe_media_type_copper,
+	ngbe_media_type_backplane,
+};
+
+enum ngbe_mac_type {
+	ngbe_mac_type_unknown = 0,
+	ngbe_mac_type_mdi,
+	ngbe_mac_type_rgmii
+};
+
+struct ngbe_phy_info {
+	enum ngbe_phy_type type;
+	enum ngbe_media_type media_type;
+
+	u32 addr;
+	u32 id;
+
+	bool reset_if_overtemp;
+
+};
+
+struct ngbe_hw {
+	struct wx_hw wxhw;
+	struct ngbe_phy_info phy;
+	enum ngbe_mac_type mac_type;
+
+	bool wol_enabled;
+	bool ncsi_enabled;
+	bool gpio_ctrl;
+};
 #endif /* _NGBE_TYPE_H_ */