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Date: Wed, 12 Oct 2022 18:35:33 +0800
From: Jiawen Wu <jiawenwu@...stnetic.com>
To: netdev@...r.kernel.org
Cc: mengyuanlou@...-swift.com, Jiawen Wu <jiawenwu@...stnetic.com>
Subject: [PATCH net-next v4 3/3] net: txgbe: Set MAC address and register netdev
Add MAC address related operations, and register netdev.
Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>
---
drivers/net/ethernet/wangxun/libwx/wx_hw.c | 233 ++++++++++++++-
drivers/net/ethernet/wangxun/libwx/wx_hw.h | 6 +
drivers/net/ethernet/wangxun/libwx/wx_type.h | 37 +++
drivers/net/ethernet/wangxun/txgbe/txgbe.h | 13 +
drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c | 13 +
.../net/ethernet/wangxun/txgbe/txgbe_main.c | 270 +++++++++++++++++-
.../net/ethernet/wangxun/txgbe/txgbe_type.h | 3 +
7 files changed, 567 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_hw.c b/drivers/net/ethernet/wangxun/libwx/wx_hw.c
index 76f88cfb2476..8dbbac862f27 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_hw.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_hw.c
@@ -1,6 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd. */
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
#include <linux/iopoll.h>
#include <linux/pci.h>
@@ -71,7 +73,230 @@ int wx_check_flash_load(struct wx_hw *hw, u32 check_bit)
}
EXPORT_SYMBOL(wx_check_flash_load);
-static void wx_disable_rx(struct wx_hw *wxhw)
+/**
+ * wx_get_mac_addr - Generic get MAC address
+ * @wxhw: pointer to hardware structure
+ * @mac_addr: Adapter MAC address
+ *
+ * Reads the adapter's MAC address from first Receive Address Register (RAR0)
+ * A reset of the adapter must be performed prior to calling this function
+ * in order for the MAC address to have been loaded from the EEPROM into RAR0
+ **/
+void wx_get_mac_addr(struct wx_hw *wxhw, u8 *mac_addr)
+{
+ u32 rar_high;
+ u32 rar_low;
+ u16 i;
+
+ wr32(wxhw, WX_PSR_MAC_SWC_IDX, 0);
+ rar_high = rd32(wxhw, WX_PSR_MAC_SWC_AD_H);
+ rar_low = rd32(wxhw, WX_PSR_MAC_SWC_AD_L);
+
+ for (i = 0; i < 2; i++)
+ mac_addr[i] = (u8)(rar_high >> (1 - i) * 8);
+
+ for (i = 0; i < 4; i++)
+ mac_addr[i + 2] = (u8)(rar_low >> (3 - i) * 8);
+}
+EXPORT_SYMBOL(wx_get_mac_addr);
+
+/**
+ * wx_set_rar - Set Rx address register
+ * @wxhw: pointer to hardware structure
+ * @index: Receive address register to write
+ * @addr: Address to put into receive address register
+ * @pools: VMDq "set" or "pool" index
+ * @enable_addr: set flag that address is active
+ *
+ * Puts an ethernet address into a receive address register.
+ **/
+int wx_set_rar(struct wx_hw *wxhw, u32 index, u8 *addr, u64 pools,
+ u32 enable_addr)
+{
+ u32 rar_entries = wxhw->mac.num_rar_entries;
+ u32 rar_low, rar_high;
+
+ /* Make sure we are using a valid rar index range */
+ if (index >= rar_entries) {
+ wx_err(wxhw, "RAR index %d is out of range.\n", index);
+ return -EINVAL;
+ }
+
+ /* select the MAC address */
+ wr32(wxhw, WX_PSR_MAC_SWC_IDX, index);
+
+ /* setup VMDq pool mapping */
+ wr32(wxhw, WX_PSR_MAC_SWC_VM_L, pools & 0xFFFFFFFF);
+ if (wxhw->mac.type == wx_mac_sp)
+ wr32(wxhw, WX_PSR_MAC_SWC_VM_H, pools >> 32);
+
+ /* HW expects these in little endian so we reverse the byte
+ * order from network order (big endian) to little endian
+ *
+ * Some parts put the VMDq setting in the extra RAH bits,
+ * so save everything except the lower 16 bits that hold part
+ * of the address and the address valid bit.
+ */
+ rar_low = ((u32)addr[5] |
+ ((u32)addr[4] << 8) |
+ ((u32)addr[3] << 16) |
+ ((u32)addr[2] << 24));
+ rar_high = ((u32)addr[1] |
+ ((u32)addr[0] << 8));
+ if (enable_addr != 0)
+ rar_high |= WX_PSR_MAC_SWC_AD_H_AV;
+
+ wr32(wxhw, WX_PSR_MAC_SWC_AD_L, rar_low);
+ wr32m(wxhw, WX_PSR_MAC_SWC_AD_H,
+ (WX_PSR_MAC_SWC_AD_H_AD(~0) |
+ WX_PSR_MAC_SWC_AD_H_ADTYPE(~0) |
+ WX_PSR_MAC_SWC_AD_H_AV),
+ rar_high);
+
+ return 0;
+}
+EXPORT_SYMBOL(wx_set_rar);
+
+/**
+ * wx_clear_rar - Remove Rx address register
+ * @wxhw: pointer to hardware structure
+ * @index: Receive address register to write
+ *
+ * Clears an ethernet address from a receive address register.
+ **/
+int wx_clear_rar(struct wx_hw *wxhw, u32 index)
+{
+ u32 rar_entries = wxhw->mac.num_rar_entries;
+
+ /* Make sure we are using a valid rar index range */
+ if (index >= rar_entries) {
+ wx_err(wxhw, "RAR index %d is out of range.\n", index);
+ return -EINVAL;
+ }
+
+ /* Some parts put the VMDq setting in the extra RAH bits,
+ * so save everything except the lower 16 bits that hold part
+ * of the address and the address valid bit.
+ */
+ wr32(wxhw, WX_PSR_MAC_SWC_IDX, index);
+
+ wr32(wxhw, WX_PSR_MAC_SWC_VM_L, 0);
+ wr32(wxhw, WX_PSR_MAC_SWC_VM_H, 0);
+
+ wr32(wxhw, WX_PSR_MAC_SWC_AD_L, 0);
+ wr32m(wxhw, WX_PSR_MAC_SWC_AD_H,
+ (WX_PSR_MAC_SWC_AD_H_AD(~0) |
+ WX_PSR_MAC_SWC_AD_H_ADTYPE(~0) |
+ WX_PSR_MAC_SWC_AD_H_AV),
+ 0);
+
+ return 0;
+}
+EXPORT_SYMBOL(wx_clear_rar);
+
+/**
+ * wx_clear_vmdq - Disassociate a VMDq pool index from a rx address
+ * @wxhw: pointer to hardware struct
+ * @rar: receive address register index to disassociate
+ * @vmdq: VMDq pool index to remove from the rar
+ **/
+static int wx_clear_vmdq(struct wx_hw *wxhw, u32 rar, u32 __maybe_unused vmdq)
+{
+ u32 rar_entries = wxhw->mac.num_rar_entries;
+ u32 mpsar_lo, mpsar_hi;
+
+ /* Make sure we are using a valid rar index range */
+ if (rar >= rar_entries) {
+ wx_err(wxhw, "RAR index %d is out of range.\n", rar);
+ return -EINVAL;
+ }
+
+ wr32(wxhw, WX_PSR_MAC_SWC_IDX, rar);
+ mpsar_lo = rd32(wxhw, WX_PSR_MAC_SWC_VM_L);
+ mpsar_hi = rd32(wxhw, WX_PSR_MAC_SWC_VM_H);
+
+ if (!mpsar_lo && !mpsar_hi)
+ return 0;
+
+ /* was that the last pool using this rar? */
+ if (mpsar_lo == 0 && mpsar_hi == 0 && rar != 0)
+ wx_clear_rar(wxhw, rar);
+
+ return 0;
+}
+
+/**
+ * wx_init_uta_tables - Initialize the Unicast Table Array
+ * @wxhw: pointer to hardware structure
+ **/
+static void wx_init_uta_tables(struct wx_hw *wxhw)
+{
+ int i;
+
+ wx_dbg(wxhw, " Clearing UTA\n");
+
+ for (i = 0; i < 128; i++)
+ wr32(wxhw, WX_PSR_UC_TBL(i), 0);
+}
+
+/**
+ * wx_init_rx_addrs - Initializes receive address filters.
+ * @wxhw: pointer to hardware structure
+ *
+ * Places the MAC address in receive address register 0 and clears the rest
+ * of the receive address registers. Clears the multicast table. Assumes
+ * the receiver is in reset when the routine is called.
+ **/
+void wx_init_rx_addrs(struct wx_hw *wxhw)
+{
+ u32 rar_entries = wxhw->mac.num_rar_entries;
+ u32 psrctl;
+ int i;
+
+ /* If the current mac address is valid, assume it is a software override
+ * to the permanent address.
+ * Otherwise, use the permanent address from the eeprom.
+ */
+ if (!is_valid_ether_addr(wxhw->mac.addr)) {
+ /* Get the MAC address from the RAR0 for later reference */
+ wx_get_mac_addr(wxhw, wxhw->mac.addr);
+ wx_dbg(wxhw, "Keeping Current RAR0 Addr = %pM\n", wxhw->mac.addr);
+ } else {
+ /* Setup the receive address. */
+ wx_dbg(wxhw, "Overriding MAC Address in RAR[0]\n");
+ wx_dbg(wxhw, "New MAC Addr = %pM\n", wxhw->mac.addr);
+
+ wx_set_rar(wxhw, 0, wxhw->mac.addr, 0, WX_PSR_MAC_SWC_AD_H_AV);
+
+ if (wxhw->mac.type == wx_mac_sp) {
+ /* clear VMDq pool/queue selection for RAR 0 */
+ wx_clear_vmdq(wxhw, 0, WX_CLEAR_VMDQ_ALL);
+ }
+ }
+
+ /* Zero out the other receive addresses. */
+ wx_dbg(wxhw, "Clearing RAR[1-%d]\n", rar_entries - 1);
+ for (i = 1; i < rar_entries; i++) {
+ wr32(wxhw, WX_PSR_MAC_SWC_IDX, i);
+ wr32(wxhw, WX_PSR_MAC_SWC_AD_L, 0);
+ wr32(wxhw, WX_PSR_MAC_SWC_AD_H, 0);
+ }
+
+ /* Clear the MTA */
+ wxhw->addr_ctrl.mta_in_use = 0;
+ psrctl = rd32(wxhw, WX_PSR_CTL);
+ psrctl &= ~(WX_PSR_CTL_MO | WX_PSR_CTL_MFE);
+ psrctl |= wxhw->mac.mc_filter_type << WX_PSR_CTL_MO_SHIFT;
+ wr32(wxhw, WX_PSR_CTL, psrctl);
+ wx_dbg(wxhw, " Clearing MTA\n");
+ for (i = 0; i < wxhw->mac.mcft_size; i++)
+ wr32(wxhw, WX_PSR_MC_TBL(i), 0);
+
+ wx_init_uta_tables(wxhw);
+}
+EXPORT_SYMBOL(wx_init_rx_addrs);
+
+void wx_disable_rx(struct wx_hw *wxhw)
{
u32 pfdtxgswc;
u32 rxctrl;
@@ -97,6 +322,7 @@ static void wx_disable_rx(struct wx_hw *wxhw)
}
}
}
+EXPORT_SYMBOL(wx_disable_rx);
/**
* wx_disable_pcie_master - Disable PCI-express master access
@@ -105,7 +331,7 @@ static void wx_disable_rx(struct wx_hw *wxhw)
* Disables PCI-Express master access and verifies there are no pending
* requests.
**/
-static int wx_disable_pcie_master(struct wx_hw *wxhw)
+int wx_disable_pcie_master(struct wx_hw *wxhw)
{
int status = 0;
u32 val;
@@ -125,10 +351,11 @@ static int wx_disable_pcie_master(struct wx_hw *wxhw)
return status;
}
+EXPORT_SYMBOL(wx_disable_pcie_master);
/**
* wx_stop_adapter - Generic stop Tx/Rx units
- * @hw: pointer to hardware structure
+ * @wxhw: pointer to hardware structure
*
* Sets the adapter_stopped flag within wx_hw struct. Clears interrupts,
* disables transmit and receive units. The adapter_stopped flag is used by
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_hw.h b/drivers/net/ethernet/wangxun/libwx/wx_hw.h
index 2c4c4cbbfb46..58a943dc76c1 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_hw.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_hw.h
@@ -5,6 +5,12 @@
#define _WX_HW_H_
int wx_check_flash_load(struct wx_hw *hw, u32 check_bit);
+void wx_get_mac_addr(struct wx_hw *wxhw, u8 *mac_addr);
+int wx_set_rar(struct wx_hw *wxhw, u32 index, u8 *addr, u64 pools, u32 enable_addr);
+int wx_clear_rar(struct wx_hw *wxhw, u32 index);
+void wx_init_rx_addrs(struct wx_hw *wxhw);
+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_sw_init(struct wx_hw *wxhw);
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_type.h b/drivers/net/ethernet/wangxun/libwx/wx_type.h
index c720ad66f36c..a84ff4586013 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_type.h
+++ b/drivers/net/ethernet/wangxun/libwx/wx_type.h
@@ -51,6 +51,12 @@
#define WX_TS_ALARM_ST_DALARM BIT(1)
#define WX_TS_ALARM_ST_ALARM BIT(0)
+/*********************** Transmit DMA registers **************************/
+/* transmit global control */
+#define WX_TDM_CTL 0x18000
+/* TDM CTL BIT */
+#define WX_TDM_CTL_TE BIT(0) /* Transmit Enable */
+
/***************************** RDB registers *********************************/
/* receive packet buffer */
#define WX_RDB_PB_CTL 0x19000
@@ -76,6 +82,9 @@
#define WX_PSR_CTL_MO_SHIFT 5
#define WX_PSR_CTL_MO (0x3 << WX_PSR_CTL_MO_SHIFT)
#define WX_PSR_CTL_TPE BIT(4)
+/* mcasst/ucast overflow tbl */
+#define WX_PSR_MC_TBL(_i) (0x15200 + ((_i) * 4))
+#define WX_PSR_UC_TBL(_i) (0x15400 + ((_i) * 4))
/* Management */
#define WX_PSR_MNG_FLEX_SEL 0x1582C
@@ -87,7 +96,20 @@
#define WX_PSR_LAN_FLEX_DW_H(_i) (0x15C04 + ((_i) * 16))
#define WX_PSR_LAN_FLEX_MSK(_i) (0x15C08 + ((_i) * 16))
+/* mac switcher */
+#define WX_PSR_MAC_SWC_AD_L 0x16200
+#define WX_PSR_MAC_SWC_AD_H 0x16204
+#define WX_PSR_MAC_SWC_AD_H_AD(v) (((v) & 0xFFFF))
+#define WX_PSR_MAC_SWC_AD_H_ADTYPE(v) (((v) & 0x1) << 30)
+#define WX_PSR_MAC_SWC_AD_H_AV BIT(31)
+#define WX_PSR_MAC_SWC_VM_L 0x16208
+#define WX_PSR_MAC_SWC_VM_H 0x1620C
+#define WX_PSR_MAC_SWC_IDX 0x16210
+#define WX_CLEAR_VMDQ_ALL 0xFFFFFFFFU
+
/************************************* ETH MAC *****************************/
+#define WX_MAC_TX_CFG 0x11000
+#define WX_MAC_TX_CFG_TE BIT(0)
#define WX_MAC_RX_CFG 0x11004
#define WX_MAC_RX_CFG_RE BIT(0)
#define WX_MAC_RX_CFG_JE BIT(8)
@@ -143,16 +165,28 @@ enum wx_mac_type {
struct wx_mac_info {
enum wx_mac_type type;
bool set_lben;
+ u8 addr[ETH_ALEN];
+ u8 perm_addr[ETH_ALEN];
+ s32 mc_filter_type;
+ u32 mcft_size;
+ u32 num_rar_entries;
u32 max_tx_queues;
u32 max_rx_queues;
struct wx_thermal_sensor_data sensor;
};
+struct wx_addr_filter_info {
+ u32 num_mc_addrs;
+ u32 mta_in_use;
+ bool user_set_promisc;
+};
+
struct wx_hw {
u8 __iomem *hw_addr;
struct pci_dev *pdev;
struct wx_bus_info bus;
struct wx_mac_info mac;
+ struct wx_addr_filter_info addr_ctrl;
u16 device_id;
u16 vendor_id;
u16 subsystem_device_id;
@@ -199,4 +233,7 @@ wr32m(struct wx_hw *wxhw, u32 reg, u32 mask, u32 field)
#define wx_err(wxhw, fmt, arg...) \
dev_err(&(wxhw)->pdev->dev, fmt, ##arg)
+#define wx_dbg(wxhw, fmt, arg...) \
+ dev_dbg(&(wxhw)->pdev->dev, fmt, ##arg)
+
#endif /* _WX_TYPE_H_ */
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe.h b/drivers/net/ethernet/wangxun/txgbe/txgbe.h
index f866d7fa7161..52e350f9a7d9 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe.h
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe.h
@@ -11,6 +11,18 @@
#define TXGBE_SP_MAX_TX_QUEUES 128
#define TXGBE_SP_MAX_RX_QUEUES 128
+#define TXGBE_SP_RAR_ENTRIES 128
+#define TXGBE_SP_MC_TBL_SIZE 128
+
+struct txgbe_mac_addr {
+ u8 addr[ETH_ALEN];
+ u16 state; /* bitmask */
+ u64 pools;
+};
+
+#define TXGBE_MAC_STATE_DEFAULT 0x1
+#define TXGBE_MAC_STATE_MODIFIED 0x2
+#define TXGBE_MAC_STATE_IN_USE 0x4
/* board specific private data structure */
struct txgbe_adapter {
@@ -22,6 +34,7 @@ struct txgbe_adapter {
/* structs defined in txgbe_type.h */
struct txgbe_hw hw;
u16 msg_enable;
+ struct txgbe_mac_addr *mac_table;
};
extern char txgbe_driver_name[];
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c
index a679db3f2e41..c7c92c0ec561 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c
@@ -1,6 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd. */
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
#include <linux/string.h>
#include <linux/iopoll.h>
#include <linux/types.h>
@@ -80,6 +82,17 @@ int txgbe_reset_hw(struct txgbe_hw *hw)
return status;
txgbe_reset_misc(hw);
+
+ /* Store the permanent mac address */
+ wx_get_mac_addr(wxhw, wxhw->mac.perm_addr);
+
+ /* Store MAC address from RAR0, clear receive address registers, and
+ * clear the multicast table. Also reset num_rar_entries to 128,
+ * since we modify this value when programming the SAN MAC address.
+ */
+ wxhw->mac.num_rar_entries = TXGBE_SP_RAR_ENTRIES;
+ wx_init_rx_addrs(wxhw);
+
pci_set_master(wxhw->pdev);
return 0;
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
index 409103d5ac2b..adfa4e7d0d52 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
@@ -8,6 +8,7 @@
#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"
@@ -72,6 +73,143 @@ static int txgbe_enumerate_functions(struct txgbe_adapter *adapter)
return physfns;
}
+static void txgbe_sync_mac_table(struct txgbe_adapter *adapter)
+{
+ struct txgbe_hw *hw = &adapter->hw;
+ struct wx_hw *wxhw = &hw->wxhw;
+ int i;
+
+ for (i = 0; i < wxhw->mac.num_rar_entries; i++) {
+ if (adapter->mac_table[i].state & TXGBE_MAC_STATE_MODIFIED) {
+ if (adapter->mac_table[i].state & TXGBE_MAC_STATE_IN_USE) {
+ wx_set_rar(wxhw, i,
+ adapter->mac_table[i].addr,
+ adapter->mac_table[i].pools,
+ WX_PSR_MAC_SWC_AD_H_AV);
+ } else {
+ wx_clear_rar(wxhw, i);
+ }
+ adapter->mac_table[i].state &= ~(TXGBE_MAC_STATE_MODIFIED);
+ }
+ }
+}
+
+/* this function destroys the first RAR entry */
+static void txgbe_mac_set_default_filter(struct txgbe_adapter *adapter,
+ u8 *addr)
+{
+ struct wx_hw *wxhw = &adapter->hw.wxhw;
+
+ memcpy(&adapter->mac_table[0].addr, addr, ETH_ALEN);
+ adapter->mac_table[0].pools = 1ULL;
+ adapter->mac_table[0].state = (TXGBE_MAC_STATE_DEFAULT |
+ TXGBE_MAC_STATE_IN_USE);
+ wx_set_rar(wxhw, 0, adapter->mac_table[0].addr,
+ adapter->mac_table[0].pools,
+ WX_PSR_MAC_SWC_AD_H_AV);
+}
+
+static void txgbe_flush_sw_mac_table(struct txgbe_adapter *adapter)
+{
+ struct wx_hw *wxhw = &adapter->hw.wxhw;
+ u32 i;
+
+ for (i = 0; i < wxhw->mac.num_rar_entries; i++) {
+ adapter->mac_table[i].state |= TXGBE_MAC_STATE_MODIFIED;
+ adapter->mac_table[i].state &= ~TXGBE_MAC_STATE_IN_USE;
+ memset(adapter->mac_table[i].addr, 0, ETH_ALEN);
+ adapter->mac_table[i].pools = 0;
+ }
+ txgbe_sync_mac_table(adapter);
+}
+
+static int txgbe_del_mac_filter(struct txgbe_adapter *adapter, u8 *addr, u16 pool)
+{
+ struct wx_hw *wxhw = &adapter->hw.wxhw;
+ u32 i;
+
+ if (is_zero_ether_addr(addr))
+ return -EINVAL;
+
+ /* search table for addr, if found, set to 0 and sync */
+ for (i = 0; i < wxhw->mac.num_rar_entries; i++) {
+ if (ether_addr_equal(addr, adapter->mac_table[i].addr)) {
+ if (adapter->mac_table[i].pools & (1ULL << pool)) {
+ adapter->mac_table[i].state |= TXGBE_MAC_STATE_MODIFIED;
+ adapter->mac_table[i].state &= ~TXGBE_MAC_STATE_IN_USE;
+ adapter->mac_table[i].pools &= ~(1ULL << pool);
+ txgbe_sync_mac_table(adapter);
+ }
+ return 0;
+ }
+
+ if (adapter->mac_table[i].pools != (1 << pool))
+ continue;
+ if (!ether_addr_equal(addr, adapter->mac_table[i].addr))
+ continue;
+
+ adapter->mac_table[i].state |= TXGBE_MAC_STATE_MODIFIED;
+ adapter->mac_table[i].state &= ~TXGBE_MAC_STATE_IN_USE;
+ memset(adapter->mac_table[i].addr, 0, ETH_ALEN);
+ adapter->mac_table[i].pools = 0;
+ txgbe_sync_mac_table(adapter);
+ return 0;
+ }
+ return -ENOMEM;
+}
+
+static void txgbe_reset(struct txgbe_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct txgbe_hw *hw = &adapter->hw;
+ u8 old_addr[ETH_ALEN];
+ int err;
+
+ err = txgbe_reset_hw(hw);
+ if (err != 0)
+ dev_err(&adapter->pdev->dev, "Hardware Error: %d\n", err);
+
+ /* do not flush user set addresses */
+ memcpy(old_addr, &adapter->mac_table[0].addr, netdev->addr_len);
+ txgbe_flush_sw_mac_table(adapter);
+ txgbe_mac_set_default_filter(adapter, old_addr);
+}
+
+static void txgbe_disable_device(struct txgbe_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct wx_hw *wxhw = &adapter->hw.wxhw;
+
+ wx_disable_pcie_master(wxhw);
+ /* disable receives */
+ wx_disable_rx(wxhw);
+
+ netif_carrier_off(netdev);
+ netif_tx_disable(netdev);
+
+ if (wxhw->bus.func < 2)
+ wr32m(wxhw, TXGBE_MIS_PRB_CTL, TXGBE_MIS_PRB_CTL_LAN_UP(wxhw->bus.func), 0);
+ else
+ dev_err(&adapter->pdev->dev,
+ "%s: invalid bus lan id %d\n",
+ __func__, wxhw->bus.func);
+
+ if (!(((wxhw->subsystem_device_id & WX_NCSI_MASK) == WX_NCSI_SUP) ||
+ ((wxhw->subsystem_device_id & WX_WOL_MASK) == WX_WOL_SUP))) {
+ /* disable mac transmiter */
+ wr32m(wxhw, WX_MAC_TX_CFG, WX_MAC_TX_CFG_TE, 0);
+ }
+
+ /* Disable the Tx DMA engine */
+ wr32m(wxhw, WX_TDM_CTL, WX_TDM_CTL_TE, 0);
+}
+
+static void txgbe_down(struct txgbe_adapter *adapter)
+{
+ txgbe_disable_device(adapter);
+ txgbe_reset(adapter);
+}
+
/**
* txgbe_sw_init - Initialize general software structures (struct txgbe_adapter)
* @adapter: board private structure to initialize
@@ -104,8 +242,65 @@ static int txgbe_sw_init(struct txgbe_adapter *adapter)
break;
}
+ wxhw->mac.num_rar_entries = TXGBE_SP_RAR_ENTRIES;
wxhw->mac.max_tx_queues = TXGBE_SP_MAX_TX_QUEUES;
wxhw->mac.max_rx_queues = TXGBE_SP_MAX_RX_QUEUES;
+ wxhw->mac.mcft_size = TXGBE_SP_MC_TBL_SIZE;
+
+ adapter->mac_table = kcalloc(wxhw->mac.num_rar_entries,
+ sizeof(struct txgbe_mac_addr),
+ GFP_KERNEL);
+ if (!adapter->mac_table) {
+ netif_err(adapter, probe, adapter->netdev,
+ "mac_table allocation failed\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+/**
+ * txgbe_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 txgbe_open(struct net_device *netdev)
+{
+ return 0;
+}
+
+/**
+ * txgbe_close_suspend - actions necessary to both suspend and close flows
+ * @adapter: the private adapter struct
+ *
+ * This function should contain the necessary work common to both suspending
+ * and closing of the device.
+ */
+static void txgbe_close_suspend(struct txgbe_adapter *adapter)
+{
+ txgbe_disable_device(adapter);
+}
+
+/**
+ * txgbe_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 txgbe_close(struct net_device *netdev)
+{
+ struct txgbe_adapter *adapter = netdev_priv(netdev);
+
+ txgbe_down(adapter);
return 0;
}
@@ -117,6 +312,11 @@ static void txgbe_dev_shutdown(struct pci_dev *pdev, bool *enable_wake)
netif_device_detach(netdev);
+ rtnl_lock();
+ if (netif_running(netdev))
+ txgbe_close_suspend(adapter);
+ rtnl_unlock();
+
pci_disable_device(pdev);
}
@@ -132,6 +332,47 @@ static void txgbe_shutdown(struct pci_dev *pdev)
}
}
+static netdev_tx_t txgbe_xmit_frame(struct sk_buff *skb,
+ struct net_device *netdev)
+{
+ return NETDEV_TX_OK;
+}
+
+/**
+ * txgbe_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 txgbe_set_mac(struct net_device *netdev, void *p)
+{
+ struct txgbe_adapter *adapter = netdev_priv(netdev);
+ struct wx_hw *wxhw = &adapter->hw.wxhw;
+ struct sockaddr *addr = p;
+ int retval;
+
+ retval = eth_prepare_mac_addr_change(netdev, addr);
+ if (retval)
+ return retval;
+
+ txgbe_del_mac_filter(adapter, wxhw->mac.addr, 0);
+ eth_hw_addr_set(netdev, addr->sa_data);
+ memcpy(wxhw->mac.addr, addr->sa_data, netdev->addr_len);
+
+ txgbe_mac_set_default_filter(adapter, wxhw->mac.addr);
+
+ return 0;
+}
+
+static const struct net_device_ops txgbe_netdev_ops = {
+ .ndo_open = txgbe_open,
+ .ndo_stop = txgbe_close,
+ .ndo_start_xmit = txgbe_xmit_frame,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = txgbe_set_mac,
+};
+
/**
* txgbe_probe - Device Initialization Routine
* @pdev: PCI device information struct
@@ -201,29 +442,36 @@ static int txgbe_probe(struct pci_dev *pdev,
goto err_pci_release_regions;
}
- strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
+ netdev->netdev_ops = &txgbe_netdev_ops;
/* setup the private structure */
err = txgbe_sw_init(adapter);
if (err)
- goto err_pci_release_regions;
+ goto err_free_mac_table;
/* check if flash load is done after hw power up */
err = wx_check_flash_load(wxhw, TXGBE_SPI_ILDR_STATUS_PERST);
if (err)
- goto err_pci_release_regions;
+ goto err_free_mac_table;
err = wx_check_flash_load(wxhw, TXGBE_SPI_ILDR_STATUS_PWRRST);
if (err)
- goto err_pci_release_regions;
+ goto err_free_mac_table;
err = txgbe_reset_hw(hw);
if (err) {
dev_err(&pdev->dev, "HW Init failed: %d\n", err);
- goto err_pci_release_regions;
+ goto err_free_mac_table;
}
netdev->features |= NETIF_F_HIGHDMA;
+ eth_hw_addr_set(netdev, wxhw->mac.perm_addr);
+ txgbe_mac_set_default_filter(adapter, wxhw->mac.perm_addr);
+
+ err = register_netdev(netdev);
+ if (err)
+ goto err_free_mac_table;
+
pci_set_drvdata(pdev, adapter);
/* calculate the expected PCIe bandwidth required for optimal
@@ -240,8 +488,12 @@ static int txgbe_probe(struct pci_dev *pdev,
else
dev_warn(&pdev->dev, "Failed to enumerate PF devices.\n");
+ netif_info(adapter, probe, netdev, "%pM\n", netdev->dev_addr);
+
return 0;
+err_free_mac_table:
+ kfree(adapter->mac_table);
err_pci_release_regions:
pci_disable_pcie_error_reporting(pdev);
pci_release_selected_regions(pdev,
@@ -262,9 +514,17 @@ static int txgbe_probe(struct pci_dev *pdev,
**/
static void txgbe_remove(struct pci_dev *pdev)
{
+ struct txgbe_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);
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
index c891b0f07227..4082d3b76709 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h
@@ -40,6 +40,9 @@
#define TXGBE_SP_MPW 1
/**************** SP Registers ****************************/
+/* chip control Registers */
+#define TXGBE_MIS_PRB_CTL 0x10010
+#define TXGBE_MIS_PRB_CTL_LAN_UP(_i) BIT(1 - (_i))
/* FMGR Registers */
#define TXGBE_SPI_ILDR_STATUS 0x10120
#define TXGBE_SPI_ILDR_STATUS_PERST BIT(0) /* PCIE_PERST is done */
--
2.27.0
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