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Message-Id: <20221027061116.683903-4-jiawenwu@trustnetic.com> Date: Thu, 27 Oct 2022 14:11:16 +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 v6 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 | 231 ++++++++++++++- 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, 566 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/wangxun/libwx/wx_hw.c b/drivers/net/ethernet/wangxun/libwx/wx_hw.c index 6e2a2d251a09..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; @@ -125,6 +351,7 @@ 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 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 1d8e8a529d7a..790497cec603 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; @@ -197,4 +231,7 @@ 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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