[PATCH net-next] atl1e: Atheros L1E Gigabit Ethernet driver - Kernel

This is a discussion on [PATCH net-next] atl1e: Atheros L1E Gigabit Ethernet driver - Kernel ; From: Jie Yang Full patch for the Atheros L1E Gigabit Ethernet driver. Supportring AR8121, AR8113 and AR8114 Signed-off-by: Jie Yang --- update on comments: 1) Remove dup MACRO already defined in linux/ethtool.h 2) Remove pci_using_64 logic for the reason as ...

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Thread: [PATCH net-next] atl1e: Atheros L1E Gigabit Ethernet driver

  1. [PATCH net-next] atl1e: Atheros L1E Gigabit Ethernet driver

    From: Jie Yang

    Full patch for the Atheros L1E Gigabit Ethernet driver.
    Supportring AR8121, AR8113 and AR8114

    Signed-off-by: Jie Yang
    ---
    update on comments:
    1) Remove dup MACRO already defined in linux/ethtool.h
    2) Remove pci_using_64 logic for the reason as atl1

    diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
    index 9490cb1..6223ceb 100644
    --- a/drivers/net/Kconfig
    +++ b/drivers/net/Kconfig
    @@ -2314,6 +2314,17 @@ config ATL1
    To compile this driver as a module, choose M here. The module
    will be called atl1.

    +config ATL1E
    + tristate "Atheros L1E Gigabit Ethernet support (EXPERIMENTAL)"
    + depends on PCI && EXPERIMENTAL
    + select CRC32
    + select MII
    + help
    + This driver supports the Atheros L1E gigabit ethernet adapter.
    +
    + To compile this driver as a module, choose M here. The module
    + will be called atl1e.
    +
    endif # NETDEV_1000

    #
    diff --git a/drivers/net/Makefile b/drivers/net/Makefile
    index 3292d0a..a7dc1ca 100644
    --- a/drivers/net/Makefile
    +++ b/drivers/net/Makefile
    @@ -15,6 +15,7 @@ obj-$(CONFIG_EHEA) += ehea/
    obj-$(CONFIG_CAN) += can/
    obj-$(CONFIG_BONDING) += bonding/
    obj-$(CONFIG_ATL1) += atlx/
    +obj-$(CONFIG_ATL1E) += atl1e/
    obj-$(CONFIG_GIANFAR) += gianfar_driver.o
    obj-$(CONFIG_TEHUTI) += tehuti.o

    diff --git a/drivers/net/atl1e/Makefile b/drivers/net/atl1e/Makefile
    new file mode 100644
    index 0000000..bc11be8
    --- /dev/null
    +++ b/drivers/net/atl1e/Makefile
    @@ -0,0 +1,2 @@
    +obj-$(CONFIG_ATL1E) += atl1e.o
    +atl1e-objs += atl1e_main.o atl1e_hw.o atl1e_ethtool.o atl1e_param.o
    diff --git a/drivers/net/atl1e/atl1e.h b/drivers/net/atl1e/atl1e.h
    new file mode 100644
    index 0000000..b645fa0
    --- /dev/null
    +++ b/drivers/net/atl1e/atl1e.h
    @@ -0,0 +1,503 @@
    +/*
    + * Copyright(c) 2007 Atheros Corporation. All rights reserved.
    + * Copyright(c) 2007 xiong huang
    + *
    + * Derived from Intel e1000 driver
    + * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
    + *
    + * This program is free software; you can redistribute it and/or modify it
    + * under the terms of the GNU General Public License as published by the Free
    + * Software Foundation; either version 2 of the License, or (at your option)
    + * any later version.
    + *
    + * This program is distributed in the hope that it will be useful, but WITHOUT
    + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
    + * more details.
    + *
    + * You should have received a copy of the GNU General Public License along with
    + * this program; if not, write to the Free Software Foundation, Inc., 59
    + * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
    + */
    +
    +#ifndef _ATL1E_H_
    +#define _ATL1E_H_
    +
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +#include
    +
    +#include "atl1e_hw.h"
    +
    +#define PCI_REG_COMMAND 0x04 /* PCI Command Register */
    +#define CMD_IO_SPACE 0x0001
    +#define CMD_MEMORY_SPACE 0x0002
    +#define CMD_BUS_MASTER 0x0004
    +
    +#define BAR_0 0
    +#define BAR_1 1
    +#define BAR_5 5
    +
    +/* Wake Up Filter Control */
    +#define AT_WUFC_LNKC 0x00000001 /* Link Status Change Wakeup Enable */
    +#define AT_WUFC_MAG 0x00000002 /* Magic Packet Wakeup Enable */
    +#define AT_WUFC_EX 0x00000004 /* Directed Exact Wakeup Enable */
    +#define AT_WUFC_MC 0x00000008 /* Multicast Wakeup Enable */
    +#define AT_WUFC_BC 0x00000010 /* Broadcast Wakeup Enable */
    +
    +#define SPEED_0 0xffff
    +#define HALF_DUPLEX 1
    +#define FULL_DUPLEX 2
    +
    +/* Error Codes */
    +#define AT_ERR_EEPROM 1
    +#define AT_ERR_PHY 2
    +#define AT_ERR_CONFIG 3
    +#define AT_ERR_PARAM 4
    +#define AT_ERR_MAC_TYPE 5
    +#define AT_ERR_PHY_TYPE 6
    +#define AT_ERR_PHY_SPEED 7
    +#define AT_ERR_PHY_RES 8
    +#define AT_ERR_TIMEOUT 9
    +
    +#define MAX_JUMBO_FRAME_SIZE 0x2000
    +
    +#define AT_VLAN_TAG_TO_TPD_TAG(_vlan, _tpd) \
    + _tpd = (((_vlan) << (4)) | (((_vlan) >> 13) & 7) |\
    + (((_vlan) >> 9) & 8))
    +
    +#define AT_TPD_TAG_TO_VLAN_TAG(_tpd, _vlan) \
    + _vlan = (((_tpd) >> 8) | (((_tpd) & 0x77) << 9) |\
    + (((_tdp) & 0x88) << 5))
    +
    +#define AT_MAX_RECEIVE_QUEUE 4
    +#define AT_PAGE_NUM_PER_QUEUE 2
    +
    +#define AT_DMA_HI_ADDR_MASK 0xffffffff00000000ULL
    +#define AT_DMA_LO_ADDR_MASK 0x00000000ffffffffULL
    +
    +#define AT_TX_WATCHDOG (5 * HZ)
    +#define AT_MAX_INT_WORK 10
    +#define AT_TWSI_EEPROM_TIMEOUT 100
    +#define AT_HW_MAX_IDLE_DELAY 10
    +#define AT_SUSPEND_LINK_TIMEOUT 28
    +
    +#define AT_REGS_LEN 75
    +#define AT_EEPROM_LEN 512
    +#define AT_ADV_MASK (ADVERTISE_10_HALF |\
    + ADVERTISE_10_FULL |\
    + ADVERTISE_100_HALF |\
    + ADVERTISE_100_FULL |\
    + ADVERTISE_1000_FULL)
    +
    +/* tpd word 2 */
    +#define TPD_BUFLEN_MASK 0x3FFF
    +#define TPD_BUFLEN_SHIFT 0
    +#define TPD_DMAINT_MASK 0x0001
    +#define TPD_DMAINT_SHIFT 14
    +#define TPD_PKTNT_MASK 0x0001
    +#define TPD_PKTINT_SHIFT 15
    +#define TPD_VLANTAG_MASK 0xFFFF
    +#define TPD_VLAN_SHIFT 16
    +
    +/* tpd word 3 bits 0:4 */
    +#define TPD_EOP_MASK 0x0001
    +#define TPD_EOP_SHIFT 0
    +#define TPD_IP_VERSION_MASK 0x0001
    +#define TPD_IP_VERSION_SHIFT 1 /* 0 : IPV4, 1 : IPV6 */
    +#define TPD_INS_VL_TAG_MASK 0x0001
    +#define TPD_INS_VL_TAG_SHIFT 2
    +#define TPD_CC_SEGMENT_EN_MASK 0x0001
    +#define TPD_CC_SEGMENT_EN_SHIFT 3
    +#define TPD_SEGMENT_EN_MASK 0x0001
    +#define TPD_SEGMENT_EN_SHIFT 4
    +
    +/* tdp word 3 bits 5:7 if ip version is 0 */
    +#define TPD_IP_CSUM_MASK 0x0001
    +#define TPD_IP_CSUM_SHIFT 5
    +#define TPD_TCP_CSUM_MASK 0x0001
    +#define TPD_TCP_CSUM_SHIFT 6
    +#define TPD_UDP_CSUM_MASK 0x0001
    +#define TPD_UDP_CSUM_SHIFT 7
    +
    +/* tdp word 3 bits 5:7 if ip version is 1 */
    +#define TPD_V6_IPHLLO_MASK 0x0007
    +#define TPD_V6_IPHLLO_SHIFT 7
    +
    +/* tpd word 3 bits 8:9 bit */
    +#define TPD_VL_TAGGED_MASK 0x0001
    +#define TPD_VL_TAGGED_SHIFT 8
    +#define TPD_ETHTYPE_MASK 0x0001
    +#define TPD_ETHTYPE_SHIFT 9
    +
    +/* tdp word 3 bits 10:13 if ip version is 0 */
    +#define TDP_V4_IPHL_MASK 0x000F
    +#define TPD_V4_IPHL_SHIFT 10
    +
    +/* tdp word 3 bits 10:13 if ip version is 1 */
    +#define TPD_V6_IPHLHI_MASK 0x000F
    +#define TPD_V6_IPHLHI_SHIFT 10
    +
    +/* tpd word 3 bit 14:31 if segment enabled */
    +#define TPD_TCPHDRLEN_MASK 0x000F
    +#define TPD_TCPHDRLEN_SHIFT 14
    +#define TPD_HDRFLAG_MASK 0x0001
    +#define TPD_HDRFLAG_SHIFT 18
    +#define TPD_MSS_MASK 0x1FFF
    +#define TPD_MSS_SHIFT 19
    +
    +/* tdp word 3 bit 16:31 if custom csum enabled */
    +#define TPD_PLOADOFFSET_MASK 0x00FF
    +#define TPD_PLOADOFFSET_SHIFT 16
    +#define TPD_CCSUMOFFSET_MASK 0x00FF
    +#define TPD_CCSUMOFFSET_SHIFT 24
    +
    +struct atl1e_tpd_desc {
    + __le64 buffer_addr;
    + __le32 word2;
    + __le32 word3;
    +};
    +
    +/* how about 0x2000 */
    +#define MAX_TX_BUF_LEN 0x2000
    +#define MAX_TX_BUF_SHIFT 13
    +/*#define MAX_TX_BUF_LEN 0x3000 */
    +
    +/* rrs word 1 bit 0:31 */
    +#define RRS_RX_CSUM_MASK 0xFFFF
    +#define RRS_RX_CSUM_SHIFT 0
    +#define RRS_PKT_SIZE_MASK 0x3FFF
    +#define RRS_PKT_SIZE_SHIFT 16
    +#define RRS_CPU_NUM_MASK 0x0003
    +#define RRS_CPU_NUM_SHIFT 30
    +
    +#define RRS_IS_RSS_IPV4 0x0001
    +#define RRS_IS_RSS_IPV4_TCP 0x0002
    +#define RRS_IS_RSS_IPV6 0x0004
    +#define RRS_IS_RSS_IPV6_TCP 0x0008
    +#define RRS_IS_IPV6 0x0010
    +#define RRS_IS_IP_FRAG 0x0020
    +#define RRS_IS_IP_DF 0x0040
    +#define RRS_IS_802_3 0x0080
    +#define RRS_IS_VLAN_TAG 0x0100
    +#define RRS_IS_ERR_FRAME 0x0200
    +#define RRS_IS_IPV4 0x0400
    +#define RRS_IS_UDP 0x0800
    +#define RRS_IS_TCP 0x1000
    +#define RRS_IS_BCAST 0x2000
    +#define RRS_IS_MCAST 0x4000
    +#define RRS_IS_PAUSE 0x8000
    +
    +#define RRS_ERR_BAD_CRC 0x0001
    +#define RRS_ERR_CODE 0x0002
    +#define RRS_ERR_DRIBBLE 0x0004
    +#define RRS_ERR_RUNT 0x0008
    +#define RRS_ERR_RX_OVERFLOW 0x0010
    +#define RRS_ERR_TRUNC 0x0020
    +#define RRS_ERR_IP_CSUM 0x0040
    +#define RRS_ERR_L4_CSUM 0x0080
    +#define RRS_ERR_LENGTH 0x0100
    +#define RRS_ERR_DES_ADDR 0x0200
    +
    +struct atl1e_recv_ret_status {
    + u16 seq_num;
    + u16 hash_lo;
    + __le32 word1;
    + u16 pkt_flag;
    + u16 err_flag;
    + u16 hash_hi;
    + u16 vtag;
    +};
    +
    +enum atl1e_dma_req_block {
    + atl1e_dma_req_128 = 0,
    + atl1e_dma_req_256 = 1,
    + atl1e_dma_req_512 = 2,
    + atl1e_dma_req_1024 = 3,
    + atl1e_dma_req_2048 = 4,
    + atl1e_dma_req_4096 = 5
    +};
    +
    +enum atl1e_rrs_type {
    + atl1e_rrs_disable = 0,
    + atl1e_rrs_ipv4 = 1,
    + atl1e_rrs_ipv4_tcp = 2,
    + atl1e_rrs_ipv6 = 4,
    + atl1e_rrs_ipv6_tcp = 8
    +};
    +
    +enum atl1e_nic_type {
    + athr_l1e = 0,
    + athr_l2e_revA = 1,
    + athr_l2e_revB = 2
    +};
    +
    +struct atl1e_hw_stats {
    + /* rx */
    + unsigned long rx_ok; /* The number of good packet received. */
    + unsigned long rx_bcast; /* The number of good broadcast packet received. */
    + unsigned long rx_mcast; /* The number of good multicast packet received. */
    + unsigned long rx_pause; /* The number of Pause packet received. */
    + unsigned long rx_ctrl; /* The number of Control packet received other than Pause frame. */
    + unsigned long rx_fcs_err; /* The number of packets with bad FCS. */
    + unsigned long rx_len_err; /* The number of packets with mismatch of length field and actual size. */
    + unsigned long rx_byte_cnt; /* The number of bytes of good packet received. FCS is NOT included. */
    + unsigned long rx_runt; /* The number of packets received that are less than 64 byte long and with good FCS. */
    + unsigned long rx_frag; /* The number of packets received that are less than 64 byte long and with bad FCS. */
    + unsigned long rx_sz_64; /* The number of good and bad packets received that are 64 byte long. */
    + unsigned long rx_sz_65_127; /* The number of good and bad packets received that are between 65 and 127-byte long. */
    + unsigned long rx_sz_128_255; /* The number of good and bad packets received that are between 128 and 255-byte long. */
    + unsigned long rx_sz_256_511; /* The number of good and bad packets received that are between 256 and 511-byte long. */
    + unsigned long rx_sz_512_1023; /* The number of good and bad packets received that are between 512 and 1023-byte long. */
    + unsigned long rx_sz_1024_1518; /* The number of good and bad packets received that are between 1024 and 1518-byte long. */
    + unsigned long rx_sz_1519_max; /* The number of good and bad packets received that are between 1519-byte and MTU. */
    + unsigned long rx_sz_ov; /* The number of good and bad packets received that are more than MTU size truncated by Selene. */
    + unsigned long rx_rxf_ov; /* The number of frame dropped due to occurrence of RX FIFO overflow. */
    + unsigned long rx_rrd_ov; /* The number of frame dropped due to occurrence of RRD overflow. */
    + unsigned long rx_align_err; /* Alignment Error */
    + unsigned long rx_bcast_byte_cnt; /* The byte count of broadcast packet received, excluding FCS. */
    + unsigned long rx_mcast_byte_cnt; /* The byte count of multicast packet received, excluding FCS. */
    + unsigned long rx_err_addr; /* The number of packets dropped due to address filtering. */
    +
    + /* tx */
    + unsigned long tx_ok; /* The number of good packet transmitted. */
    + unsigned long tx_bcast; /* The number of good broadcast packet transmitted. */
    + unsigned long tx_mcast; /* The number of good multicast packet transmitted. */
    + unsigned long tx_pause; /* The number of Pause packet transmitted. */
    + unsigned long tx_exc_defer; /* The number of packets transmitted with excessive deferral. */
    + unsigned long tx_ctrl; /* The number of packets transmitted is a control frame, excluding Pause frame. */
    + unsigned long tx_defer; /* The number of packets transmitted that is deferred. */
    + unsigned long tx_byte_cnt; /* The number of bytes of data transmitted. FCS is NOT included. */
    + unsigned long tx_sz_64; /* The number of good and bad packets transmitted that are 64 byte long. */
    + unsigned long tx_sz_65_127; /* The number of good and bad packets transmitted that are between 65 and 127-byte long. */
    + unsigned long tx_sz_128_255; /* The number of good and bad packets transmitted that are between 128 and 255-byte long. */
    + unsigned long tx_sz_256_511; /* The number of good and bad packets transmitted that are between 256 and 511-byte long. */
    + unsigned long tx_sz_512_1023; /* The number of good and bad packets transmitted that are between 512 and 1023-byte long. */
    + unsigned long tx_sz_1024_1518; /* The number of good and bad packets transmitted that are between 1024 and 1518-byte long. */
    + unsigned long tx_sz_1519_max; /* The number of good and bad packets transmitted that are between 1519-byte and MTU. */
    + unsigned long tx_1_col; /* The number of packets subsequently transmitted successfully with a single prior collision. */
    + unsigned long tx_2_col; /* The number of packets subsequently transmitted successfully with multiple prior collisions. */
    + unsigned long tx_late_col; /* The number of packets transmitted with late collisions. */
    + unsigned long tx_abort_col; /* The number of transmit packets aborted due to excessive collisions. */
    + unsigned long tx_underrun; /* The number of transmit packets aborted due to transmit FIFO underrun, or TRD FIFO underrun */
    + unsigned long tx_rd_eop; /* The number of times that read beyond the EOP into the next frame area when TRD was not written timely */
    + unsigned long tx_len_err; /* The number of transmit packets with length field does NOT match the actual frame size. */
    + unsigned long tx_trunc; /* The number of transmit packets truncated due to size exceeding MTU. */
    + unsigned long tx_bcast_byte; /* The byte count of broadcast packet transmitted, excluding FCS. */
    + unsigned long tx_mcast_byte; /* The byte count of multicast packet transmitted, excluding FCS. */
    +};
    +
    +struct atl1e_hw {
    + u8 __iomem *hw_addr; /* inner register address */
    + resource_size_t mem_rang;
    + struct atl1e_adapter *adapter;
    + enum atl1e_nic_type nic_type;
    + u16 device_id;
    + u16 vendor_id;
    + u16 subsystem_id;
    + u16 subsystem_vendor_id;
    + u8 revision_id;
    + u16 pci_cmd_word;
    + u8 mac_addr[ETH_ALEN];
    + u8 perm_mac_addr[ETH_ALEN];
    + u8 preamble_len;
    + u16 max_frame_size;
    + u16 rx_jumbo_th;
    + u16 tx_jumbo_th;
    +
    + u16 media_type;
    +#define MEDIA_TYPE_AUTO_SENSOR 0
    +#define MEDIA_TYPE_100M_FULL 1
    +#define MEDIA_TYPE_100M_HALF 2
    +#define MEDIA_TYPE_10M_FULL 3
    +#define MEDIA_TYPE_10M_HALF 4
    +
    + u16 autoneg_advertised;
    +#define ADVERTISE_10_HALF 0x0001
    +#define ADVERTISE_10_FULL 0x0002
    +#define ADVERTISE_100_HALF 0x0004
    +#define ADVERTISE_100_FULL 0x0008
    +#define ADVERTISE_1000_HALF 0x0010 /* Not used, just FYI */
    +#define ADVERTISE_1000_FULL 0x0020
    + u16 mii_autoneg_adv_reg;
    + u16 mii_1000t_ctrl_reg;
    +
    + u16 imt; /* Interrupt Moderator timer ( 2us resolution) */
    + u16 ict; /* Interrupt Clear timer (2us resolution) */
    + u32 smb_timer;
    + u16 rrd_thresh; /* Threshold of number of RRD produced to trigger
    + interrupt request */
    + u16 tpd_thresh;
    + u16 rx_count_down; /* 2us resolution */
    + u16 tx_count_down;
    +
    + u8 tpd_burst; /* Number of TPD to prefetch in cache-aligned burst. */
    + enum atl1e_rrs_type rrs_type;
    + u32 base_cpu;
    + u32 indirect_tab;
    +
    + enum atl1e_dma_req_block dmar_block;
    + enum atl1e_dma_req_block dmaw_block;
    + u8 dmaw_dly_cnt;
    + u8 dmar_dly_cnt;
    +
    + bool phy_configured;
    + bool re_autoneg;
    + bool emi_ca;
    +};
    +
    +/*
    + * wrapper around a pointer to a socket buffer,
    + * so a DMA handle can be stored along with the buffer
    + */
    +struct atl1e_tx_buffer {
    + struct sk_buff *skb;
    + u16 length;
    + dma_addr_t dma;
    +};
    +
    +struct atl1e_rx_page {
    + dma_addr_t dma; /* receive rage DMA address */
    + u8 *addr; /* receive rage virtual address */
    + dma_addr_t write_offset_dma; /* the DMA address which contain the
    + receive data offset in the page */
    + u32 *write_offset_addr; /* the virtaul address which contain
    + the receive data offset in the page */
    + u32 read_offset; /* the offset where we have read */
    +};
    +
    +struct atl1e_rx_page_desc {
    + struct atl1e_rx_page rx_page[AT_PAGE_NUM_PER_QUEUE];
    + u8 rx_using;
    + u16 rx_nxseq;
    +};
    +
    +/* transmit packet descriptor (tpd) ring */
    +struct atl1e_tx_ring {
    + struct atl1e_tpd_desc *desc; /* descriptor ring virtual address */
    + dma_addr_t dma; /* descriptor ring physical address */
    + u16 count; /* the count of transmit rings */
    + rwlock_t tx_lock;
    + u16 next_to_use;
    + atomic_t next_to_clean;
    + struct atl1e_tx_buffer *tx_buffer;
    + dma_addr_t cmb_dma;
    + u32 *cmb;
    +};
    +
    +/* receive packet descriptor ring */
    +struct atl1e_rx_ring {
    + void *desc;
    + dma_addr_t dma;
    + int size;
    + u32 page_size; /* bytes length of rxf page */
    + u32 real_page_size; /* real_page_size = page_size + jumbo + aliagn */
    + struct atl1e_rx_page_desc rx_page_desc[AT_MAX_RECEIVE_QUEUE];
    +};
    +
    +/* board specific private data structure */
    +struct atl1e_adapter {
    + struct net_device *netdev;
    + struct pci_dev *pdev;
    + struct vlan_group *vlgrp;
    + struct napi_struct napi;
    + struct mii_if_info mii; /* MII interface info */
    + struct atl1e_hw hw;
    + struct atl1e_hw_stats hw_stats;
    + struct net_device_stats net_stats;
    +
    + bool have_msi;
    + u32 wol;
    + u16 link_speed;
    + u16 link_duplex;
    +
    + spinlock_t mdio_lock;
    + spinlock_t tx_lock;
    + atomic_t irq_sem;
    +
    + struct work_struct reset_task;
    + struct work_struct link_chg_task;
    + struct timer_list watchdog_timer;
    + struct timer_list phy_config_timer;
    +
    + /* All Descriptor memory */
    + dma_addr_t ring_dma;
    + void *ring_vir_addr;
    + int ring_size;
    +
    + struct atl1e_tx_ring tx_ring;
    + struct atl1e_rx_ring rx_ring;
    + int num_rx_queues;
    + unsigned long flags;
    +#define __AT_TESTING 0x0001
    +#define __AT_RESETTING 0x0002
    +#define __AT_DOWN 0x0003
    +
    + u32 bd_number; /* board number;*/
    + u32 pci_state[16];
    + u32 *config_space;
    +};
    +
    +#define AT_WRITE_REG(a, reg, value) ( \
    + writel((value), ((a)->hw_addr + reg)))
    +
    +#define AT_WRITE_FLUSH(a) (\
    + readl((a)->hw_addr))
    +
    +#define AT_READ_REG(a, reg) ( \
    + readl((a)->hw_addr + reg))
    +
    +#define AT_WRITE_REGB(a, reg, value) (\
    + writeb((value), ((a)->hw_addr + reg)))
    +
    +#define AT_READ_REGB(a, reg) (\
    + readb((a)->hw_addr + reg))
    +
    +#define AT_WRITE_REGW(a, reg, value) (\
    + writew((value), ((a)->hw_addr + reg)))
    +
    +#define AT_READ_REGW(a, reg) (\
    + readw((a)->hw_addr + reg))
    +
    +#define AT_WRITE_REG_ARRAY(a, reg, offset, value) ( \
    + writel((value), (((a)->hw_addr + reg) + ((offset) << 2))))
    +
    +#define AT_READ_REG_ARRAY(a, reg, offset) ( \
    + readl(((a)->hw_addr + reg) + ((offset) << 2)))
    +
    +extern char atl1e_driver_name[];
    +extern char atl1e_driver_version[];
    +
    +extern void atl1e_check_options(struct atl1e_adapter *adapter);
    +extern int atl1e_up(struct atl1e_adapter *adapter);
    +extern void atl1e_down(struct atl1e_adapter *adapter);
    +extern void atl1e_reinit_locked(struct atl1e_adapter *adapter);
    +extern s32 atl1e_reset_hw(struct atl1e_hw *hw);
    +extern void atl1e_set_ethtool_ops(struct net_device *netdev);
    +#endif /* _ATL1_E_H_ */
    diff --git a/drivers/net/atl1e/atl1e_ethtool.c b/drivers/net/atl1e/atl1e_ethtool.c
    new file mode 100644
    index 0000000..cdc3b85
    --- /dev/null
    +++ b/drivers/net/atl1e/atl1e_ethtool.c
    @@ -0,0 +1,405 @@
    +/*
    + * Copyright(c) 2007 Atheros Corporation. All rights reserved.
    + *
    + * Derived from Intel e1000 driver
    + * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
    + *
    + * This program is free software; you can redistribute it and/or modify it
    + * under the terms of the GNU General Public License as published by the Free
    + * Software Foundation; either version 2 of the License, or (at your option)
    + * any later version.
    + *
    + * This program is distributed in the hope that it will be useful, but WITHOUT
    + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
    + * more details.
    + *
    + * You should have received a copy of the GNU General Public License along with
    + * this program; if not, write to the Free Software Foundation, Inc., 59
    + * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
    + *
    + */
    +
    +#include
    +#include
    +
    +#include "atl1e.h"
    +
    +static int atl1e_get_settings(struct net_device *netdev,
    + struct ethtool_cmd *ecmd)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct atl1e_hw *hw = &adapter->hw;
    +
    + ecmd->supported = (SUPPORTED_10baseT_Half |
    + SUPPORTED_10baseT_Full |
    + SUPPORTED_100baseT_Half |
    + SUPPORTED_100baseT_Full |
    + SUPPORTED_Autoneg |
    + SUPPORTED_TP);
    + if (hw->nic_type == athr_l1e)
    + ecmd->supported |= SUPPORTED_1000baseT_Full;
    +
    + ecmd->advertising = ADVERTISED_TP;
    +
    + ecmd->advertising |= ADVERTISED_Autoneg;
    + ecmd->advertising |= hw->autoneg_advertised;
    +
    + ecmd->port = PORT_TP;
    + ecmd->phy_address = 0;
    + ecmd->transceiver = XCVR_INTERNAL;
    +
    + if (adapter->link_speed != SPEED_0) {
    + ecmd->speed = adapter->link_speed;
    + if (adapter->link_duplex == FULL_DUPLEX)
    + ecmd->duplex = DUPLEX_FULL;
    + else
    + ecmd->duplex = DUPLEX_HALF;
    + } else {
    + ecmd->speed = -1;
    + ecmd->duplex = -1;
    + }
    +
    + ecmd->autoneg = AUTONEG_ENABLE;
    + return 0;
    +}
    +
    +static int atl1e_set_settings(struct net_device *netdev,
    + struct ethtool_cmd *ecmd)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct atl1e_hw *hw = &adapter->hw;
    +
    + while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
    + msleep(1);
    +
    + if (ecmd->autoneg == AUTONEG_ENABLE) {
    + u16 adv4, adv9;
    +
    + if ((ecmd->advertising&ADVERTISE_1000_FULL)) {
    + if (hw->nic_type == athr_l1e) {
    + hw->autoneg_advertised =
    + ecmd->advertising & AT_ADV_MASK;
    + } else {
    + clear_bit(__AT_RESETTING, &adapter->flags);
    + return -EINVAL;
    + }
    + } else if (ecmd->advertising&ADVERTISE_1000_HALF) {
    + clear_bit(__AT_RESETTING, &adapter->flags);
    + return -EINVAL;
    + } else {
    + hw->autoneg_advertised =
    + ecmd->advertising & AT_ADV_MASK;
    + }
    + ecmd->advertising = hw->autoneg_advertised |
    + ADVERTISED_TP | ADVERTISED_Autoneg;
    +
    + adv4 = hw->mii_autoneg_adv_reg & ~MII_AR_SPEED_MASK;
    + adv9 = hw->mii_1000t_ctrl_reg & ~MII_AT001_CR_1000T_SPEED_MASK;
    + if (hw->autoneg_advertised & ADVERTISE_10_HALF)
    + adv4 |= MII_AR_10T_HD_CAPS;
    + if (hw->autoneg_advertised & ADVERTISE_10_FULL)
    + adv4 |= MII_AR_10T_FD_CAPS;
    + if (hw->autoneg_advertised & ADVERTISE_100_HALF)
    + adv4 |= MII_AR_100TX_HD_CAPS;
    + if (hw->autoneg_advertised & ADVERTISE_100_FULL)
    + adv4 |= MII_AR_100TX_FD_CAPS;
    + if (hw->autoneg_advertised & ADVERTISE_1000_FULL)
    + adv9 |= MII_AT001_CR_1000T_FD_CAPS;
    +
    + if (adv4 != hw->mii_autoneg_adv_reg ||
    + adv9 != hw->mii_1000t_ctrl_reg) {
    + hw->mii_autoneg_adv_reg = adv4;
    + hw->mii_1000t_ctrl_reg = adv9;
    + hw->re_autoneg = true;
    + }
    +
    + } else {
    + clear_bit(__AT_RESETTING, &adapter->flags);
    + return -EINVAL;
    + }
    +
    + /* reset the link */
    +
    + if (netif_running(adapter->netdev)) {
    + atl1e_down(adapter);
    + atl1e_up(adapter);
    + } else
    + atl1e_reset_hw(&adapter->hw);
    +
    + clear_bit(__AT_RESETTING, &adapter->flags);
    + return 0;
    +}
    +
    +static u32 atl1e_get_tx_csum(struct net_device *netdev)
    +{
    + return (netdev->features & NETIF_F_HW_CSUM) != 0;
    +}
    +
    +static u32 atl1e_get_msglevel(struct net_device *netdev)
    +{
    +#ifdef DBG
    + return 1;
    +#else
    + return 0;
    +#endif
    +}
    +
    +static void atl1e_set_msglevel(struct net_device *netdev, u32 data)
    +{
    +}
    +
    +static int atl1e_get_regs_len(struct net_device *netdev)
    +{
    + return AT_REGS_LEN * sizeof(u32);
    +}
    +
    +static void atl1e_get_regs(struct net_device *netdev,
    + struct ethtool_regs *regs, void *p)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct atl1e_hw *hw = &adapter->hw;
    + u32 *regs_buff = p;
    + u16 phy_data;
    +
    + memset(p, 0, AT_REGS_LEN * sizeof(u32));
    +
    + regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
    +
    + regs_buff[0] = AT_READ_REG(hw, REG_VPD_CAP);
    + regs_buff[1] = AT_READ_REG(hw, REG_SPI_FLASH_CTRL);
    + regs_buff[2] = AT_READ_REG(hw, REG_SPI_FLASH_CONFIG);
    + regs_buff[3] = AT_READ_REG(hw, REG_TWSI_CTRL);
    + regs_buff[4] = AT_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL);
    + regs_buff[5] = AT_READ_REG(hw, REG_MASTER_CTRL);
    + regs_buff[6] = AT_READ_REG(hw, REG_MANUAL_TIMER_INIT);
    + regs_buff[7] = AT_READ_REG(hw, REG_IRQ_MODU_TIMER_INIT);
    + regs_buff[8] = AT_READ_REG(hw, REG_GPHY_CTRL);
    + regs_buff[9] = AT_READ_REG(hw, REG_CMBDISDMA_TIMER);
    + regs_buff[10] = AT_READ_REG(hw, REG_IDLE_STATUS);
    + regs_buff[11] = AT_READ_REG(hw, REG_MDIO_CTRL);
    + regs_buff[12] = AT_READ_REG(hw, REG_SERDES_LOCK);
    + regs_buff[13] = AT_READ_REG(hw, REG_MAC_CTRL);
    + regs_buff[14] = AT_READ_REG(hw, REG_MAC_IPG_IFG);
    + regs_buff[15] = AT_READ_REG(hw, REG_MAC_STA_ADDR);
    + regs_buff[16] = AT_READ_REG(hw, REG_MAC_STA_ADDR+4);
    + regs_buff[17] = AT_READ_REG(hw, REG_RX_HASH_TABLE);
    + regs_buff[18] = AT_READ_REG(hw, REG_RX_HASH_TABLE+4);
    + regs_buff[19] = AT_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL);
    + regs_buff[20] = AT_READ_REG(hw, REG_MTU);
    + regs_buff[21] = AT_READ_REG(hw, REG_WOL_CTRL);
    + regs_buff[22] = AT_READ_REG(hw, REG_SRAM_TRD_ADDR);
    + regs_buff[23] = AT_READ_REG(hw, REG_SRAM_TRD_LEN);
    + regs_buff[24] = AT_READ_REG(hw, REG_SRAM_RXF_ADDR);
    + regs_buff[25] = AT_READ_REG(hw, REG_SRAM_RXF_LEN);
    + regs_buff[26] = AT_READ_REG(hw, REG_SRAM_TXF_ADDR);
    + regs_buff[27] = AT_READ_REG(hw, REG_SRAM_TXF_LEN);
    + regs_buff[28] = AT_READ_REG(hw, REG_SRAM_TCPH_ADDR);
    + regs_buff[29] = AT_READ_REG(hw, REG_SRAM_PKTH_ADDR);
    +
    + atl1e_read_phy_reg(hw, MII_BMCR, &phy_data);
    + regs_buff[73] = (u32)phy_data;
    + atl1e_read_phy_reg(hw, MII_BMSR, &phy_data);
    + regs_buff[74] = (u32)phy_data;
    +}
    +
    +static int atl1e_get_eeprom_len(struct net_device *netdev)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    +
    + if (!atl1e_check_eeprom_exist(&adapter->hw))
    + return AT_EEPROM_LEN;
    + else
    + return 0;
    +}
    +
    +static int atl1e_get_eeprom(struct net_device *netdev,
    + struct ethtool_eeprom *eeprom, u8 *bytes)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct atl1e_hw *hw = &adapter->hw;
    + u32 *eeprom_buff;
    + int first_dword, last_dword;
    + int ret_val = 0;
    + int i;
    +
    + if (eeprom->len == 0)
    + return -EINVAL;
    +
    + if (atl1e_check_eeprom_exist(hw)) /* not exist */
    + return -EINVAL;
    +
    + eeprom->magic = hw->vendor_id | (hw->device_id << 16);
    +
    + first_dword = eeprom->offset >> 2;
    + last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
    +
    + eeprom_buff = kmalloc(sizeof(u32) *
    + (last_dword - first_dword + 1), GFP_KERNEL);
    + if (eeprom_buff == NULL)
    + return -ENOMEM;
    +
    + for (i = first_dword; i < last_dword; i++) {
    + if (!atl1e_read_eeprom(hw, i * 4, &(eeprom_buff[i-first_dword]))) {
    + kfree(eeprom_buff);
    + return -EIO;
    + }
    + }
    +
    + memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
    + eeprom->len);
    + kfree(eeprom_buff);
    +
    + return ret_val;
    +}
    +
    +static int atl1e_set_eeprom(struct net_device *netdev,
    + struct ethtool_eeprom *eeprom, u8 *bytes)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct atl1e_hw *hw = &adapter->hw;
    + u32 *eeprom_buff;
    + u32 *ptr;
    + int first_dword, last_dword;
    + int ret_val = 0;
    + int i;
    +
    + if (eeprom->len == 0)
    + return -EOPNOTSUPP;
    +
    + if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
    + return -EINVAL;
    +
    + first_dword = eeprom->offset >> 2;
    + last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
    + eeprom_buff = kmalloc(AT_EEPROM_LEN, GFP_KERNEL);
    + if (eeprom_buff == NULL)
    + return -ENOMEM;
    +
    + ptr = (u32 *)eeprom_buff;
    +
    + if (eeprom->offset & 3) {
    + /* need read/modify/write of first changed EEPROM word */
    + /* only the second byte of the word is being modified */
    + if (!atl1e_read_eeprom(hw, first_dword * 4, &(eeprom_buff[0]))) {
    + ret_val = -EIO;
    + goto out;
    + }
    + ptr++;
    + }
    + if (((eeprom->offset + eeprom->len) & 3)) {
    + /* need read/modify/write of last changed EEPROM word */
    + /* only the first byte of the word is being modified */
    +
    + if (!atl1e_read_eeprom(hw, last_dword * 4,
    + &(eeprom_buff[last_dword - first_dword]))) {
    + ret_val = -EIO;
    + goto out;
    + }
    + }
    +
    + /* Device's eeprom is always little-endian, word addressable */
    + memcpy(ptr, bytes, eeprom->len);
    +
    + for (i = 0; i < last_dword - first_dword + 1; i++) {
    + if (!atl1e_write_eeprom(hw, ((first_dword + i) * 4),
    + eeprom_buff[i])) {
    + ret_val = -EIO;
    + goto out;
    + }
    + }
    +out:
    + kfree(eeprom_buff);
    + return ret_val;
    +}
    +
    +static void atl1e_get_drvinfo(struct net_device *netdev,
    + struct ethtool_drvinfo *drvinfo)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    +
    + strncpy(drvinfo->driver, atl1e_driver_name, 32);
    + strncpy(drvinfo->version, atl1e_driver_version, 32);
    + strncpy(drvinfo->fw_version, "L1e", 32);
    + strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
    + drvinfo->n_stats = 0;
    + drvinfo->testinfo_len = 0;
    + drvinfo->regdump_len = atl1e_get_regs_len(netdev);
    + drvinfo->eedump_len = atl1e_get_eeprom_len(netdev);
    +}
    +
    +static void atl1e_get_wol(struct net_device *netdev,
    + struct ethtool_wolinfo *wol)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    +
    + wol->supported = WAKE_MAGIC | WAKE_PHY;
    + wol->wolopts = 0;
    +
    + if (adapter->wol & AT_WUFC_EX)
    + wol->wolopts |= WAKE_UCAST;
    + if (adapter->wol & AT_WUFC_MC)
    + wol->wolopts |= WAKE_MCAST;
    + if (adapter->wol & AT_WUFC_BC)
    + wol->wolopts |= WAKE_BCAST;
    + if (adapter->wol & AT_WUFC_MAG)
    + wol->wolopts |= WAKE_MAGIC;
    + if (adapter->wol & AT_WUFC_LNKC)
    + wol->wolopts |= WAKE_PHY;
    +
    + return;
    +}
    +
    +static int atl1e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    +
    + if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
    + WAKE_MCAST | WAKE_BCAST | WAKE_MCAST))
    + return -EOPNOTSUPP;
    + /* these settings will always override what we currently have */
    + adapter->wol = 0;
    +
    + if (wol->wolopts & WAKE_MAGIC)
    + adapter->wol |= AT_WUFC_MAG;
    + if (wol->wolopts & WAKE_PHY)
    + adapter->wol |= AT_WUFC_LNKC;
    +
    + return 0;
    +}
    +
    +static int atl1e_nway_reset(struct net_device *netdev)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + if (netif_running(netdev))
    + atl1e_reinit_locked(adapter);
    + return 0;
    +}
    +
    +static struct ethtool_ops atl1e_ethtool_ops = {
    + .get_settings = atl1e_get_settings,
    + .set_settings = atl1e_set_settings,
    + .get_drvinfo = atl1e_get_drvinfo,
    + .get_regs_len = atl1e_get_regs_len,
    + .get_regs = atl1e_get_regs,
    + .get_wol = atl1e_get_wol,
    + .set_wol = atl1e_set_wol,
    + .get_msglevel = atl1e_get_msglevel,
    + .set_msglevel = atl1e_set_msglevel,
    + .nway_reset = atl1e_nway_reset,
    + .get_link = ethtool_op_get_link,
    + .get_eeprom_len = atl1e_get_eeprom_len,
    + .get_eeprom = atl1e_get_eeprom,
    + .set_eeprom = atl1e_set_eeprom,
    + .get_tx_csum = atl1e_get_tx_csum,
    + .get_sg = ethtool_op_get_sg,
    + .set_sg = ethtool_op_set_sg,
    +#ifdef NETIF_F_TSO
    + .get_tso = ethtool_op_get_tso,
    +#endif
    +};
    +
    +void atl1e_set_ethtool_ops(struct net_device *netdev)
    +{
    + SET_ETHTOOL_OPS(netdev, &atl1e_ethtool_ops);
    +}
    diff --git a/drivers/net/atl1e/atl1e_hw.c b/drivers/net/atl1e/atl1e_hw.c
    new file mode 100644
    index 0000000..949e753
    --- /dev/null
    +++ b/drivers/net/atl1e/atl1e_hw.c
    @@ -0,0 +1,664 @@
    +/*
    + * Copyright(c) 2007 Atheros Corporation. All rights reserved.
    + *
    + * Derived from Intel e1000 driver
    + * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
    + *
    + * This program is free software; you can redistribute it and/or modify it
    + * under the terms of the GNU General Public License as published by the Free
    + * Software Foundation; either version 2 of the License, or (at your option)
    + * any later version.
    + *
    + * This program is distributed in the hope that it will be useful, but WITHOUT
    + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
    + * more details.
    + *
    + * You should have received a copy of the GNU General Public License along with
    + * this program; if not, write to the Free Software Foundation, Inc., 59
    + * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
    + */
    +#include
    +#include
    +#include
    +#include
    +
    +#include "atl1e.h"
    +
    +/*
    + * check_eeprom_exist
    + * return 0 if eeprom exist
    + */
    +int atl1e_check_eeprom_exist(struct atl1e_hw *hw)
    +{
    + u32 value;
    +
    + value = AT_READ_REG(hw, REG_SPI_FLASH_CTRL);
    + if (value & SPI_FLASH_CTRL_EN_VPD) {
    + value &= ~SPI_FLASH_CTRL_EN_VPD;
    + AT_WRITE_REG(hw, REG_SPI_FLASH_CTRL, value);
    + }
    + value = AT_READ_REGW(hw, REG_PCIE_CAP_LIST);
    + return ((value & 0xFF00) == 0x6C00) ? 0 : 1;
    +}
    +
    +void atl1e_hw_set_mac_addr(struct atl1e_hw *hw)
    +{
    + u32 value;
    + /*
    + * 00-0B-6A-F6-00-DC
    + * 0: 6AF600DC 1: 000B
    + * low dword
    + */
    + value = (((u32)hw->mac_addr[2]) << 24) |
    + (((u32)hw->mac_addr[3]) << 16) |
    + (((u32)hw->mac_addr[4]) << 8) |
    + (((u32)hw->mac_addr[5])) ;
    + AT_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 0, value);
    + /* hight dword */
    + value = (((u32)hw->mac_addr[0]) << 8) |
    + (((u32)hw->mac_addr[1])) ;
    + AT_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 1, value);
    +}
    +
    +/*
    + * atl1e_get_permanent_address
    + * return 0 if get valid mac address,
    + */
    +static int atl1e_get_permanent_address(struct atl1e_hw *hw)
    +{
    + u32 addr[2];
    + u32 i;
    + u32 twsi_ctrl_data;
    + u8 eth_addr[ETH_ALEN];
    +
    + if (is_valid_ether_addr(hw->perm_mac_addr))
    + return 0;
    +
    + /* init */
    + addr[0] = addr[1] = 0;
    +
    + if (!atl1e_check_eeprom_exist(hw)) {
    + /* eeprom exist */
    + twsi_ctrl_data = AT_READ_REG(hw, REG_TWSI_CTRL);
    + twsi_ctrl_data |= TWSI_CTRL_SW_LDSTART;
    + AT_WRITE_REG(hw, REG_TWSI_CTRL, twsi_ctrl_data);
    + for (i = 0; i < AT_TWSI_EEPROM_TIMEOUT; i++) {
    + msleep(10);
    + twsi_ctrl_data = AT_READ_REG(hw, REG_TWSI_CTRL);
    + if ((twsi_ctrl_data & TWSI_CTRL_SW_LDSTART) == 0)
    + break;
    + }
    + if (i >= AT_TWSI_EEPROM_TIMEOUT)
    + return AT_ERR_TIMEOUT;
    + }
    +
    + /* maybe MAC-address is from BIOS */
    + addr[0] = AT_READ_REG(hw, REG_MAC_STA_ADDR);
    + addr[1] = AT_READ_REG(hw, REG_MAC_STA_ADDR + 4);
    + *(u32 *) &eth_addr[2] = swab32(addr[0]);
    + *(u16 *) &eth_addr[0] = swab16(*(u16 *)&addr[1]);
    +
    + if (is_valid_ether_addr(eth_addr)) {
    + memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN);
    + return 0;
    + }
    +
    + return AT_ERR_EEPROM;
    +}
    +
    +bool atl1e_write_eeprom(struct atl1e_hw *hw, u32 offset, u32 value)
    +{
    + return true;
    +}
    +
    +bool atl1e_read_eeprom(struct atl1e_hw *hw, u32 offset, u32 *p_value)
    +{
    + int i;
    + u32 control;
    +
    + if (offset & 3)
    + return false; /* address do not align */
    +
    + AT_WRITE_REG(hw, REG_VPD_DATA, 0);
    + control = (offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT;
    + AT_WRITE_REG(hw, REG_VPD_CAP, control);
    +
    + for (i = 0; i < 10; i++) {
    + msleep(2);
    + control = AT_READ_REG(hw, REG_VPD_CAP);
    + if (control & VPD_CAP_VPD_FLAG)
    + break;
    + }
    + if (control & VPD_CAP_VPD_FLAG) {
    + *p_value = AT_READ_REG(hw, REG_VPD_DATA);
    + return true;
    + }
    + return false; /* timeout */
    +}
    +
    +void atl1e_force_ps(struct atl1e_hw *hw)
    +{
    + AT_WRITE_REGW(hw, REG_GPHY_CTRL,
    + GPHY_CTRL_PW_WOL_DIS | GPHY_CTRL_EXT_RESET);
    +}
    +
    +/*
    + * Reads the adapter's MAC address from the EEPROM
    + *
    + * hw - Struct containing variables accessed by shared code
    + */
    +int atl1e_read_mac_addr(struct atl1e_hw *hw)
    +{
    + int err = 0;
    +
    + err = atl1e_get_permanent_address(hw);
    + if (err)
    + return AT_ERR_EEPROM;
    + memcpy(hw->mac_addr, hw->perm_mac_addr, sizeof(hw->perm_mac_addr));
    + return 0;
    +}
    +
    +/*
    + * atl1e_hash_mc_addr
    + * purpose
    + * set hash value for a multicast address
    + * hash calcu processing :
    + * 1. calcu 32bit CRC for multicast address
    + * 2. reverse crc with MSB to LSB
    + */
    +u32 atl1e_hash_mc_addr(struct atl1e_hw *hw, u8 *mc_addr)
    +{
    + u32 crc32;
    + u32 value = 0;
    + int i;
    +
    + crc32 = ether_crc_le(6, mc_addr);
    + crc32 = ~crc32;
    + for (i = 0; i < 32; i++)
    + value |= (((crc32 >> i) & 1) << (31 - i));
    +
    + return value;
    +}
    +
    +/*
    + * Sets the bit in the multicast table corresponding to the hash value.
    + * hw - Struct containing variables accessed by shared code
    + * hash_value - Multicast address hash value
    + */
    +void atl1e_hash_set(struct atl1e_hw *hw, u32 hash_value)
    +{
    + u32 hash_bit, hash_reg;
    + u32 mta;
    +
    + /*
    + * The HASH Table is a register array of 2 32-bit registers.
    + * It is treated like an array of 64 bits. We want to set
    + * bit BitArray[hash_value]. So we figure out what register
    + * the bit is in, read it, OR in the new bit, then write
    + * back the new value. The register is determined by the
    + * upper 7 bits of the hash value and the bit within that
    + * register are determined by the lower 5 bits of the value.
    + */
    + hash_reg = (hash_value >> 31) & 0x1;
    + hash_bit = (hash_value >> 26) & 0x1F;
    +
    + mta = AT_READ_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg);
    +
    + mta |= (1 << hash_bit);
    +
    + AT_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg, mta);
    +}
    +/*
    + * Reads the value from a PHY register
    + * hw - Struct containing variables accessed by shared code
    + * reg_addr - address of the PHY register to read
    + */
    +int atl1e_read_phy_reg(struct atl1e_hw *hw, u16 reg_addr, u16 *phy_data)
    +{
    + u32 val;
    + int i;
    +
    + val = ((u32)(reg_addr & MDIO_REG_ADDR_MASK)) << MDIO_REG_ADDR_SHIFT |
    + MDIO_START | MDIO_SUP_PREAMBLE | MDIO_RW |
    + MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT;
    +
    + AT_WRITE_REG(hw, REG_MDIO_CTRL, val);
    +
    + wmb();
    +
    + for (i = 0; i < MDIO_WAIT_TIMES; i++) {
    + udelay(2);
    + val = AT_READ_REG(hw, REG_MDIO_CTRL);
    + if (!(val & (MDIO_START | MDIO_BUSY)))
    + break;
    + wmb();
    + }
    + if (!(val & (MDIO_START | MDIO_BUSY))) {
    + *phy_data = (u16)val;
    + return 0;
    + }
    +
    + return AT_ERR_PHY;
    +}
    +
    +/*
    + * Writes a value to a PHY register
    + * hw - Struct containing variables accessed by shared code
    + * reg_addr - address of the PHY register to write
    + * data - data to write to the PHY
    + */
    +int atl1e_write_phy_reg(struct atl1e_hw *hw, u32 reg_addr, u16 phy_data)
    +{
    + int i;
    + u32 val;
    +
    + val = ((u32)(phy_data & MDIO_DATA_MASK)) << MDIO_DATA_SHIFT |
    + (reg_addr&MDIO_REG_ADDR_MASK) << MDIO_REG_ADDR_SHIFT |
    + MDIO_SUP_PREAMBLE |
    + MDIO_START |
    + MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT;
    +
    + AT_WRITE_REG(hw, REG_MDIO_CTRL, val);
    + wmb();
    +
    + for (i = 0; i < MDIO_WAIT_TIMES; i++) {
    + udelay(2);
    + val = AT_READ_REG(hw, REG_MDIO_CTRL);
    + if (!(val & (MDIO_START | MDIO_BUSY)))
    + break;
    + wmb();
    + }
    +
    + if (!(val & (MDIO_START | MDIO_BUSY)))
    + return 0;
    +
    + return AT_ERR_PHY;
    +}
    +
    +/*
    + * atl1e_init_pcie - init PCIE module
    + */
    +static void atl1e_init_pcie(struct atl1e_hw *hw)
    +{
    + u32 value;
    + /* comment 2lines below to save more power when sususpend
    + value = LTSSM_TEST_MODE_DEF;
    + AT_WRITE_REG(hw, REG_LTSSM_TEST_MODE, value);
    + */
    +
    + /* pcie flow control mode change */
    + value = AT_READ_REG(hw, 0x1008);
    + value |= 0x8000;
    + AT_WRITE_REG(hw, 0x1008, value);
    +}
    +/*
    + * Configures PHY autoneg and flow control advertisement settings
    + *
    + * hw - Struct containing variables accessed by shared code
    + */
    +static int atl1e_phy_setup_autoneg_adv(struct atl1e_hw *hw)
    +{
    + s32 ret_val;
    + u16 mii_autoneg_adv_reg;
    + u16 mii_1000t_ctrl_reg;
    +
    + if (0 != hw->mii_autoneg_adv_reg)
    + return 0;
    + /* Read the MII Auto-Neg Advertisement Register (Address 4/9). */
    + mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK;
    + mii_1000t_ctrl_reg = MII_AT001_CR_1000T_DEFAULT_CAP_MASK;
    +
    + /*
    + * Need to parse autoneg_advertised and set up
    + * the appropriate PHY registers. First we will parse for
    + * autoneg_advertised software override. Since we can advertise
    + * a plethora of combinations, we need to check each bit
    + * individually.
    + */
    +
    + /*
    + * First we clear all the 10/100 mb speed bits in the Auto-Neg
    + * Advertisement Register (Address 4) and the 1000 mb speed bits in
    + * the 1000Base-T control Register (Address 9).
    + */
    + mii_autoneg_adv_reg &= ~MII_AR_SPEED_MASK;
    + mii_1000t_ctrl_reg &= ~MII_AT001_CR_1000T_SPEED_MASK;
    +
    + /*
    + * Need to parse MediaType and setup the
    + * appropriate PHY registers.
    + */
    + switch (hw->media_type) {
    + case MEDIA_TYPE_AUTO_SENSOR:
    + mii_autoneg_adv_reg |= (MII_AR_10T_HD_CAPS |
    + MII_AR_10T_FD_CAPS |
    + MII_AR_100TX_HD_CAPS |
    + MII_AR_100TX_FD_CAPS);
    + hw->autoneg_advertised = ADVERTISE_10_HALF |
    + ADVERTISE_10_FULL |
    + ADVERTISE_100_HALF |
    + ADVERTISE_100_FULL;
    + if (hw->nic_type == athr_l1e) {
    + mii_1000t_ctrl_reg |=
    + MII_AT001_CR_1000T_FD_CAPS;
    + hw->autoneg_advertised |= ADVERTISE_1000_FULL;
    + }
    + break;
    +
    + case MEDIA_TYPE_100M_FULL:
    + mii_autoneg_adv_reg |= MII_AR_100TX_FD_CAPS;
    + hw->autoneg_advertised = ADVERTISE_100_FULL;
    + break;
    +
    + case MEDIA_TYPE_100M_HALF:
    + mii_autoneg_adv_reg |= MII_AR_100TX_HD_CAPS;
    + hw->autoneg_advertised = ADVERTISE_100_HALF;
    + break;
    +
    + case MEDIA_TYPE_10M_FULL:
    + mii_autoneg_adv_reg |= MII_AR_10T_FD_CAPS;
    + hw->autoneg_advertised = ADVERTISE_10_FULL;
    + break;
    +
    + default:
    + mii_autoneg_adv_reg |= MII_AR_10T_HD_CAPS;
    + hw->autoneg_advertised = ADVERTISE_10_HALF;
    + break;
    + }
    +
    + /* flow control fixed to enable all */
    + mii_autoneg_adv_reg |= (MII_AR_ASM_DIR | MII_AR_PAUSE);
    +
    + hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg;
    + hw->mii_1000t_ctrl_reg = mii_1000t_ctrl_reg;
    +
    + ret_val = atl1e_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg);
    + if (ret_val)
    + return ret_val;
    +
    + if (hw->nic_type == athr_l1e || hw->nic_type == athr_l2e_revA) {
    + ret_val = atl1e_write_phy_reg(hw, MII_AT001_CR,
    + mii_1000t_ctrl_reg);
    + if (ret_val)
    + return ret_val;
    + }
    +
    + return 0;
    +}
    +
    +
    +/*
    + * Resets the PHY and make all config validate
    + *
    + * hw - Struct containing variables accessed by shared code
    + *
    + * Sets bit 15 and 12 of the MII control regiser (for F001 bug)
    + */
    +int atl1e_phy_commit(struct atl1e_hw *hw)
    +{
    + struct atl1e_adapter *adapter = (struct atl1e_adapter *)hw->adapter;
    + struct pci_dev *pdev = adapter->pdev;
    + int ret_val;
    + u16 phy_data;
    +
    + phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG;
    +
    + ret_val = atl1e_write_phy_reg(hw, MII_BMCR, phy_data);
    + if (ret_val) {
    + u32 val;
    + int i;
    + /**************************************
    + * pcie serdes link may be down !
    + **************************************/
    + for (i = 0; i < 25; i++) {
    + msleep(1);
    + val = AT_READ_REG(hw, REG_MDIO_CTRL);
    + if (!(val & (MDIO_START | MDIO_BUSY)))
    + break;
    + }
    +
    + if (0 != (val & (MDIO_START | MDIO_BUSY))) {
    + dev_err(&pdev->dev,
    + "pcie linkdown at least for 25ms\n");
    + return ret_val;
    + }
    +
    + dev_err(&pdev->dev, "pcie linkup after %d ms\n", i);
    + }
    + return 0;
    +}
    +
    +int atl1e_phy_init(struct atl1e_hw *hw)
    +{
    + struct atl1e_adapter *adapter = (struct atl1e_adapter *)hw->adapter;
    + struct pci_dev *pdev = adapter->pdev;
    + s32 ret_val;
    + u16 phy_val;
    +
    + if (hw->phy_configured) {
    + if (hw->re_autoneg) {
    + hw->re_autoneg = false;
    + return atl1e_restart_autoneg(hw);
    + }
    + return 0;
    + }
    +
    + /* RESET GPHY Core */
    + AT_WRITE_REGW(hw, REG_GPHY_CTRL, GPHY_CTRL_DEFAULT);
    + msleep(2);
    + AT_WRITE_REGW(hw, REG_GPHY_CTRL, GPHY_CTRL_DEFAULT |
    + GPHY_CTRL_EXT_RESET);
    + msleep(2);
    +
    + /* patches */
    + /* p1. eable hibernation mode */
    + ret_val = atl1e_write_phy_reg(hw, MII_DBG_ADDR, 0xB);
    + if (ret_val)
    + return ret_val;
    + ret_val = atl1e_write_phy_reg(hw, MII_DBG_DATA, 0xBC00);
    + if (ret_val)
    + return ret_val;
    + /* p2. set Class A/B for all modes */
    + ret_val = atl1e_write_phy_reg(hw, MII_DBG_ADDR, 0);
    + if (ret_val)
    + return ret_val;
    + phy_val = 0x02ef;
    + /* remove Class AB */
    + /* phy_val = hw->emi_ca ? 0x02ef : 0x02df; */
    + ret_val = atl1e_write_phy_reg(hw, MII_DBG_DATA, phy_val);
    + if (ret_val)
    + return ret_val;
    + /* p3. 10B ??? */
    + ret_val = atl1e_write_phy_reg(hw, MII_DBG_ADDR, 0x12);
    + if (ret_val)
    + return ret_val;
    + ret_val = atl1e_write_phy_reg(hw, MII_DBG_DATA, 0x4C04);
    + if (ret_val)
    + return ret_val;
    + /* p4. 1000T power */
    + ret_val = atl1e_write_phy_reg(hw, MII_DBG_ADDR, 0x4);
    + if (ret_val)
    + return ret_val;
    + ret_val = atl1e_write_phy_reg(hw, MII_DBG_DATA, 0x8BBB);
    + if (ret_val)
    + return ret_val;
    +
    + ret_val = atl1e_write_phy_reg(hw, MII_DBG_ADDR, 0x5);
    + if (ret_val)
    + return ret_val;
    + ret_val = atl1e_write_phy_reg(hw, MII_DBG_DATA, 0x2C46);
    + if (ret_val)
    + return ret_val;
    +
    + msleep(1);
    +
    + /*Enable PHY LinkChange Interrupt */
    + ret_val = atl1e_write_phy_reg(hw, MII_INT_CTRL, 0xC00);
    + if (ret_val) {
    + dev_err(&pdev->dev, "Error enable PHY linkChange Interrupt\n");
    + return ret_val;
    + }
    + /* setup AutoNeg parameters */
    + ret_val = atl1e_phy_setup_autoneg_adv(hw);
    + if (ret_val) {
    + dev_err(&pdev->dev, "Error Setting up Auto-Negotiation\n");
    + return ret_val;
    + }
    + /* SW.Reset & En-Auto-Neg to restart Auto-Neg*/
    + dev_dbg(&pdev->dev, "Restarting Auto-Neg");
    + ret_val = atl1e_phy_commit(hw);
    + if (ret_val) {
    + dev_err(&pdev->dev, "Error Resetting the phy");
    + return ret_val;
    + }
    +
    + hw->phy_configured = true;
    +
    + return 0;
    +}
    +
    +/*
    + * Reset the transmit and receive units; mask and clear all interrupts.
    + * hw - Struct containing variables accessed by shared code
    + * return : 0 or idle status (if error)
    + */
    +int atl1e_reset_hw(struct atl1e_hw *hw)
    +{
    + struct atl1e_adapter *adapter = (struct atl1e_adapter *)hw->adapter;
    + struct pci_dev *pdev = adapter->pdev;
    +
    + u32 idle_status_data = 0;
    + u16 pci_cfg_cmd_word = 0;
    + int timeout = 0;
    +
    + /* Workaround for PCI problem when BIOS sets MMRBC incorrectly. */
    + pci_read_config_word(pdev, PCI_REG_COMMAND, &pci_cfg_cmd_word);
    + if ((pci_cfg_cmd_word & (CMD_IO_SPACE |
    + CMD_MEMORY_SPACE | CMD_BUS_MASTER))
    + != (CMD_IO_SPACE | CMD_MEMORY_SPACE | CMD_BUS_MASTER)) {
    + pci_cfg_cmd_word |= (CMD_IO_SPACE |
    + CMD_MEMORY_SPACE | CMD_BUS_MASTER);
    + pci_write_config_word(pdev, PCI_REG_COMMAND, pci_cfg_cmd_word);
    + }
    +
    + /*
    + * Issue Soft Reset to the MAC. This will reset the chip's
    + * transmit, receive, DMA. It will not effect
    + * the current PCI configuration. The global reset bit is self-
    + * clearing, and should clear within a microsecond.
    + */
    + AT_WRITE_REG(hw, REG_MASTER_CTRL,
    + MASTER_CTRL_LED_MODE | MASTER_CTRL_SOFT_RST);
    + wmb();
    + msleep(1);
    +
    + /* Wait at least 10ms for All module to be Idle */
    + for (timeout = 0; timeout < AT_HW_MAX_IDLE_DELAY; timeout++) {
    + idle_status_data = AT_READ_REG(hw, REG_IDLE_STATUS);
    + if (idle_status_data == 0)
    + break;
    + msleep(1);
    + cpu_relax();
    + }
    +
    + if (timeout >= AT_HW_MAX_IDLE_DELAY) {
    + dev_err(&pdev->dev,
    + "MAC state machine cann't be idle since"
    + " disabled for 10ms second\n");
    + return AT_ERR_TIMEOUT;
    + }
    +
    + return 0;
    +}
    +
    +
    +/*
    + * Performs basic configuration of the adapter.
    + *
    + * hw - Struct containing variables accessed by shared code
    + * Assumes that the controller has previously been reset and is in a
    + * post-reset uninitialized state. Initializes multicast table,
    + * and Calls routines to setup link
    + * Leaves the transmit and receive units disabled and uninitialized.
    + */
    +int atl1e_init_hw(struct atl1e_hw *hw)
    +{
    + s32 ret_val = 0;
    +
    + atl1e_init_pcie(hw);
    +
    + /* Zero out the Multicast HASH table */
    + /* clear the old settings from the multicast hash table */
    + AT_WRITE_REG(hw, REG_RX_HASH_TABLE, 0);
    + AT_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, 1, 0);
    +
    + ret_val = atl1e_phy_init(hw);
    +
    + return ret_val;
    +}
    +
    +/*
    + * Detects the current speed and duplex settings of the hardware.
    + *
    + * hw - Struct containing variables accessed by shared code
    + * speed - Speed of the connection
    + * duplex - Duplex setting of the connection
    + */
    +int atl1e_get_speed_and_duplex(struct atl1e_hw *hw, u16 *speed, u16 *duplex)
    +{
    + int err;
    + u16 phy_data;
    +
    + /* Read PHY Specific Status Register (17) */
    + err = atl1e_read_phy_reg(hw, MII_AT001_PSSR, &phy_data);
    + if (err)
    + return err;
    +
    + if (!(phy_data & MII_AT001_PSSR_SPD_DPLX_RESOLVED))
    + return AT_ERR_PHY_RES;
    +
    + switch (phy_data & MII_AT001_PSSR_SPEED) {
    + case MII_AT001_PSSR_1000MBS:
    + *speed = SPEED_1000;
    + break;
    + case MII_AT001_PSSR_100MBS:
    + *speed = SPEED_100;
    + break;
    + case MII_AT001_PSSR_10MBS:
    + *speed = SPEED_10;
    + break;
    + default:
    + return AT_ERR_PHY_SPEED;
    + break;
    + }
    +
    + if (phy_data & MII_AT001_PSSR_DPLX)
    + *duplex = FULL_DUPLEX;
    + else
    + *duplex = HALF_DUPLEX;
    +
    + return 0;
    +}
    +
    +int atl1e_restart_autoneg(struct atl1e_hw *hw)
    +{
    + int err = 0;
    +
    + err = atl1e_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg);
    + if (err)
    + return err;
    +
    + if (hw->nic_type == athr_l1e || hw->nic_type == athr_l2e_revA) {
    + err = atl1e_write_phy_reg(hw, MII_AT001_CR,
    + hw->mii_1000t_ctrl_reg);
    + if (err)
    + return err;
    + }
    +
    + err = atl1e_write_phy_reg(hw, MII_BMCR,
    + MII_CR_RESET | MII_CR_AUTO_NEG_EN |
    + MII_CR_RESTART_AUTO_NEG);
    + return err;
    +}
    +
    diff --git a/drivers/net/atl1e/atl1e_hw.h b/drivers/net/atl1e/atl1e_hw.h
    new file mode 100644
    index 0000000..5ea2f4d
    --- /dev/null
    +++ b/drivers/net/atl1e/atl1e_hw.h
    @@ -0,0 +1,793 @@
    +/*
    + * Copyright(c) 2007 Atheros Corporation. All rights reserved.
    + *
    + * Derived from Intel e1000 driver
    + * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
    + *
    + * This program is free software; you can redistribute it and/or modify it
    + * under the terms of the GNU General Public License as published by the Free
    + * Software Foundation; either version 2 of the License, or (at your option)
    + * any later version.
    + *
    + * This program is distributed in the hope that it will be useful, but WITHOUT
    + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
    + * more details.
    + *
    + * You should have received a copy of the GNU General Public License along with
    + * this program; if not, write to the Free Software Foundation, Inc., 59
    + * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
    + */
    +
    +#ifndef _ATHL1E_HW_H_
    +#define _ATHL1E_HW_H_
    +
    +#include
    +#include
    +
    +struct atl1e_adapter;
    +struct atl1e_hw;
    +
    +/* function prototype */
    +s32 atl1e_reset_hw(struct atl1e_hw *hw);
    +s32 atl1e_read_mac_addr(struct atl1e_hw *hw);
    +s32 atl1e_init_hw(struct atl1e_hw *hw);
    +s32 atl1e_phy_commit(struct atl1e_hw *hw);
    +s32 atl1e_get_speed_and_duplex(struct atl1e_hw *hw, u16 *speed, u16 *duplex);
    +u32 atl1e_auto_get_fc(struct atl1e_adapter *adapter, u16 duplex);
    +u32 atl1e_hash_mc_addr(struct atl1e_hw *hw, u8 *mc_addr);
    +void atl1e_hash_set(struct atl1e_hw *hw, u32 hash_value);
    +s32 atl1e_read_phy_reg(struct atl1e_hw *hw, u16 reg_addr, u16 *phy_data);
    +s32 atl1e_write_phy_reg(struct atl1e_hw *hw, u32 reg_addr, u16 phy_data);
    +s32 atl1e_validate_mdi_setting(struct atl1e_hw *hw);
    +void atl1e_hw_set_mac_addr(struct atl1e_hw *hw);
    +bool atl1e_read_eeprom(struct atl1e_hw *hw, u32 offset, u32 *p_value);
    +bool atl1e_write_eeprom(struct atl1e_hw *hw, u32 offset, u32 value);
    +s32 atl1e_phy_enter_power_saving(struct atl1e_hw *hw);
    +s32 atl1e_phy_leave_power_saving(struct atl1e_hw *hw);
    +s32 atl1e_phy_init(struct atl1e_hw *hw);
    +int atl1e_check_eeprom_exist(struct atl1e_hw *hw);
    +void atl1e_force_ps(struct atl1e_hw *hw);
    +s32 atl1e_restart_autoneg(struct atl1e_hw *hw);
    +
    +/* register definition */
    +#define REG_PM_CTRLSTAT 0x44
    +
    +#define REG_PCIE_CAP_LIST 0x58
    +
    +#define REG_DEVICE_CAP 0x5C
    +#define DEVICE_CAP_MAX_PAYLOAD_MASK 0x7
    +#define DEVICE_CAP_MAX_PAYLOAD_SHIFT 0
    +
    +#define REG_DEVICE_CTRL 0x60
    +#define DEVICE_CTRL_MAX_PAYLOAD_MASK 0x7
    +#define DEVICE_CTRL_MAX_PAYLOAD_SHIFT 5
    +#define DEVICE_CTRL_MAX_RREQ_SZ_MASK 0x7
    +#define DEVICE_CTRL_MAX_RREQ_SZ_SHIFT 12
    +
    +#define REG_VPD_CAP 0x6C
    +#define VPD_CAP_ID_MASK 0xff
    +#define VPD_CAP_ID_SHIFT 0
    +#define VPD_CAP_NEXT_PTR_MASK 0xFF
    +#define VPD_CAP_NEXT_PTR_SHIFT 8
    +#define VPD_CAP_VPD_ADDR_MASK 0x7FFF
    +#define VPD_CAP_VPD_ADDR_SHIFT 16
    +#define VPD_CAP_VPD_FLAG 0x80000000
    +
    +#define REG_VPD_DATA 0x70
    +
    +#define REG_SPI_FLASH_CTRL 0x200
    +#define SPI_FLASH_CTRL_STS_NON_RDY 0x1
    +#define SPI_FLASH_CTRL_STS_WEN 0x2
    +#define SPI_FLASH_CTRL_STS_WPEN 0x80
    +#define SPI_FLASH_CTRL_DEV_STS_MASK 0xFF
    +#define SPI_FLASH_CTRL_DEV_STS_SHIFT 0
    +#define SPI_FLASH_CTRL_INS_MASK 0x7
    +#define SPI_FLASH_CTRL_INS_SHIFT 8
    +#define SPI_FLASH_CTRL_START 0x800
    +#define SPI_FLASH_CTRL_EN_VPD 0x2000
    +#define SPI_FLASH_CTRL_LDSTART 0x8000
    +#define SPI_FLASH_CTRL_CS_HI_MASK 0x3
    +#define SPI_FLASH_CTRL_CS_HI_SHIFT 16
    +#define SPI_FLASH_CTRL_CS_HOLD_MASK 0x3
    +#define SPI_FLASH_CTRL_CS_HOLD_SHIFT 18
    +#define SPI_FLASH_CTRL_CLK_LO_MASK 0x3
    +#define SPI_FLASH_CTRL_CLK_LO_SHIFT 20
    +#define SPI_FLASH_CTRL_CLK_HI_MASK 0x3
    +#define SPI_FLASH_CTRL_CLK_HI_SHIFT 22
    +#define SPI_FLASH_CTRL_CS_SETUP_MASK 0x3
    +#define SPI_FLASH_CTRL_CS_SETUP_SHIFT 24
    +#define SPI_FLASH_CTRL_EROM_PGSZ_MASK 0x3
    +#define SPI_FLASH_CTRL_EROM_PGSZ_SHIFT 26
    +#define SPI_FLASH_CTRL_WAIT_READY 0x10000000
    +
    +#define REG_SPI_ADDR 0x204
    +
    +#define REG_SPI_DATA 0x208
    +
    +#define REG_SPI_FLASH_CONFIG 0x20C
    +#define SPI_FLASH_CONFIG_LD_ADDR_MASK 0xFFFFFF
    +#define SPI_FLASH_CONFIG_LD_ADDR_SHIFT 0
    +#define SPI_FLASH_CONFIG_VPD_ADDR_MASK 0x3
    +#define SPI_FLASH_CONFIG_VPD_ADDR_SHIFT 24
    +#define SPI_FLASH_CONFIG_LD_EXIST 0x4000000
    +
    +
    +#define REG_SPI_FLASH_OP_PROGRAM 0x210
    +#define REG_SPI_FLASH_OP_SC_ERASE 0x211
    +#define REG_SPI_FLASH_OP_CHIP_ERASE 0x212
    +#define REG_SPI_FLASH_OP_RDID 0x213
    +#define REG_SPI_FLASH_OP_WREN 0x214
    +#define REG_SPI_FLASH_OP_RDSR 0x215
    +#define REG_SPI_FLASH_OP_WRSR 0x216
    +#define REG_SPI_FLASH_OP_READ 0x217
    +
    +#define REG_TWSI_CTRL 0x218
    +#define TWSI_CTRL_LD_OFFSET_MASK 0xFF
    +#define TWSI_CTRL_LD_OFFSET_SHIFT 0
    +#define TWSI_CTRL_LD_SLV_ADDR_MASK 0x7
    +#define TWSI_CTRL_LD_SLV_ADDR_SHIFT 8
    +#define TWSI_CTRL_SW_LDSTART 0x800
    +#define TWSI_CTRL_HW_LDSTART 0x1000
    +#define TWSI_CTRL_SMB_SLV_ADDR_MASK 0x0x7F
    +#define TWSI_CTRL_SMB_SLV_ADDR_SHIFT 15
    +#define TWSI_CTRL_LD_EXIST 0x400000
    +#define TWSI_CTRL_READ_FREQ_SEL_MASK 0x3
    +#define TWSI_CTRL_READ_FREQ_SEL_SHIFT 23
    +#define TWSI_CTRL_FREQ_SEL_100K 0
    +#define TWSI_CTRL_FREQ_SEL_200K 1
    +#define TWSI_CTRL_FREQ_SEL_300K 2
    +#define TWSI_CTRL_FREQ_SEL_400K 3
    +#define TWSI_CTRL_SMB_SLV_ADDR
    +#define TWSI_CTRL_WRITE_FREQ_SEL_MASK 0x3
    +#define TWSI_CTRL_WRITE_FREQ_SEL_SHIFT 24
    +
    +
    +#define REG_PCIE_DEV_MISC_CTRL 0x21C
    +#define PCIE_DEV_MISC_CTRL_EXT_PIPE 0x2
    +#define PCIE_DEV_MISC_CTRL_RETRY_BUFDIS 0x1
    +#define PCIE_DEV_MISC_CTRL_SPIROM_EXIST 0x4
    +#define PCIE_DEV_MISC_CTRL_SERDES_ENDIAN 0x8
    +#define PCIE_DEV_MISC_CTRL_SERDES_SEL_DIN 0x10
    +
    +#define REG_PCIE_PHYMISC 0x1000
    +#define PCIE_PHYMISC_FORCE_RCV_DET 0x4
    +
    +#define REG_LTSSM_TEST_MODE 0x12FC
    +#define LTSSM_TEST_MODE_DEF 0xE000
    +
    +/* Selene Master Control Register */
    +#define REG_MASTER_CTRL 0x1400
    +#define MASTER_CTRL_SOFT_RST 0x1
    +#define MASTER_CTRL_MTIMER_EN 0x2
    +#define MASTER_CTRL_ITIMER_EN 0x4
    +#define MASTER_CTRL_MANUAL_INT 0x8
    +#define MASTER_CTRL_ITIMER2_EN 0x20
    +#define MASTER_CTRL_INT_RDCLR 0x40
    +#define MASTER_CTRL_LED_MODE 0x200
    +#define MASTER_CTRL_REV_NUM_SHIFT 16
    +#define MASTER_CTRL_REV_NUM_MASK 0xff
    +#define MASTER_CTRL_DEV_ID_SHIFT 24
    +#define MASTER_CTRL_DEV_ID_MASK 0xff
    +
    +/* Timer Initial Value Register */
    +#define REG_MANUAL_TIMER_INIT 0x1404
    +
    +
    +/* IRQ ModeratorTimer Initial Value Register */
    +#define REG_IRQ_MODU_TIMER_INIT 0x1408 /* w */
    +#define REG_IRQ_MODU_TIMER2_INIT 0x140A /* w */
    +
    +
    +#define REG_GPHY_CTRL 0x140C
    +#define GPHY_CTRL_EXT_RESET 1
    +#define GPHY_CTRL_PIPE_MOD 2
    +#define GPHY_CTRL_TEST_MODE_MASK 3
    +#define GPHY_CTRL_TEST_MODE_SHIFT 2
    +#define GPHY_CTRL_BERT_START 0x10
    +#define GPHY_CTRL_GATE_25M_EN 0x20
    +#define GPHY_CTRL_LPW_EXIT 0x40
    +#define GPHY_CTRL_PHY_IDDQ 0x80
    +#define GPHY_CTRL_PHY_IDDQ_DIS 0x100
    +#define GPHY_CTRL_PCLK_SEL_DIS 0x200
    +#define GPHY_CTRL_HIB_EN 0x400
    +#define GPHY_CTRL_HIB_PULSE 0x800
    +#define GPHY_CTRL_SEL_ANA_RST 0x1000
    +#define GPHY_CTRL_PHY_PLL_ON 0x2000
    +#define GPHY_CTRL_PWDOWN_HW 0x4000
    +#define GPHY_CTRL_DEFAULT (\
    + GPHY_CTRL_PHY_PLL_ON |\
    + GPHY_CTRL_SEL_ANA_RST |\
    + GPHY_CTRL_HIB_PULSE |\
    + GPHY_CTRL_HIB_EN)
    +
    +#define GPHY_CTRL_PW_WOL_DIS (\
    + GPHY_CTRL_PHY_PLL_ON |\
    + GPHY_CTRL_SEL_ANA_RST |\
    + GPHY_CTRL_HIB_PULSE |\
    + GPHY_CTRL_HIB_EN |\
    + GPHY_CTRL_PWDOWN_HW |\
    + GPHY_CTRL_PCLK_SEL_DIS |\
    + GPHY_CTRL_PHY_IDDQ)
    +
    +/* IRQ Anti-Lost Timer Initial Value Register */
    +#define REG_CMBDISDMA_TIMER 0x140E
    +
    +
    +/* Block IDLE Status Register */
    +#define REG_IDLE_STATUS 0x1410
    +#define IDLE_STATUS_RXMAC 1 /* 1: RXMAC state machine is in non-IDLE state. 0: RXMAC is idling */
    +#define IDLE_STATUS_TXMAC 2 /* 1: TXMAC state machine is in non-IDLE state. 0: TXMAC is idling */
    +#define IDLE_STATUS_RXQ 4 /* 1: RXQ state machine is in non-IDLE state. 0: RXQ is idling */
    +#define IDLE_STATUS_TXQ 8 /* 1: TXQ state machine is in non-IDLE state. 0: TXQ is idling */
    +#define IDLE_STATUS_DMAR 0x10 /* 1: DMAR state machine is in non-IDLE state. 0: DMAR is idling */
    +#define IDLE_STATUS_DMAW 0x20 /* 1: DMAW state machine is in non-IDLE state. 0: DMAW is idling */
    +#define IDLE_STATUS_SMB 0x40 /* 1: SMB state machine is in non-IDLE state. 0: SMB is idling */
    +#define IDLE_STATUS_CMB 0x80 /* 1: CMB state machine is in non-IDLE state. 0: CMB is idling */
    +
    +/* MDIO Control Register */
    +#define REG_MDIO_CTRL 0x1414
    +#define MDIO_DATA_MASK 0xffff /* On MDIO write, the 16-bit control data to write to PHY MII management register */
    +#define MDIO_DATA_SHIFT 0 /* On MDIO read, the 16-bit status data that was read from the PHY MII management register*/
    +#define MDIO_REG_ADDR_MASK 0x1f /* MDIO register address */
    +#define MDIO_REG_ADDR_SHIFT 16
    +#define MDIO_RW 0x200000 /* 1: read, 0: write */
    +#define MDIO_SUP_PREAMBLE 0x400000 /* Suppress preamble */
    +#define MDIO_START 0x800000 /* Write 1 to initiate the MDIO master. And this bit is self cleared after one cycle*/
    +#define MDIO_CLK_SEL_SHIFT 24
    +#define MDIO_CLK_25_4 0
    +#define MDIO_CLK_25_6 2
    +#define MDIO_CLK_25_8 3
    +#define MDIO_CLK_25_10 4
    +#define MDIO_CLK_25_14 5
    +#define MDIO_CLK_25_20 6
    +#define MDIO_CLK_25_28 7
    +#define MDIO_BUSY 0x8000000
    +#define MDIO_AP_EN 0x10000000
    +#define MDIO_WAIT_TIMES 10
    +
    +/* MII PHY Status Register */
    +#define REG_PHY_STATUS 0x1418
    +#define PHY_STATUS_100M 0x20000
    +#define PHY_STATUS_EMI_CA 0x40000
    +
    +/* BIST Control and Status Register0 (for the Packet Memory) */
    +#define REG_BIST0_CTRL 0x141c
    +#define BIST0_NOW 0x1 /* 1: To trigger BIST0 logic. This bit stays high during the */
    +/* BIST process and reset to zero when BIST is done */
    +#define BIST0_SRAM_FAIL 0x2 /* 1: The SRAM failure is un-repairable because it has address */
    +/* decoder failure or more than 1 cell stuck-to-x failure */
    +#define BIST0_FUSE_FLAG 0x4 /* 1: Indicating one cell has been fixed */
    +
    +/* BIST Control and Status Register1(for the retry buffer of PCI Express) */
    +#define REG_BIST1_CTRL 0x1420
    +#define BIST1_NOW 0x1 /* 1: To trigger BIST0 logic. This bit stays high during the */
    +/* BIST process and reset to zero when BIST is done */
    +#define BIST1_SRAM_FAIL 0x2 /* 1: The SRAM failure is un-repairable because it has address */
    +/* decoder failure or more than 1 cell stuck-to-x failure.*/
    +#define BIST1_FUSE_FLAG 0x4
    +
    +/* SerDes Lock Detect Control and Status Register */
    +#define REG_SERDES_LOCK 0x1424
    +#define SERDES_LOCK_DETECT 1 /* 1: SerDes lock detected . This signal comes from Analog SerDes */
    +#define SERDES_LOCK_DETECT_EN 2 /* 1: Enable SerDes Lock detect function */
    +
    +/* MAC Control Register */
    +#define REG_MAC_CTRL 0x1480
    +#define MAC_CTRL_TX_EN 1 /* 1: Transmit Enable */
    +#define MAC_CTRL_RX_EN 2 /* 1: Receive Enable */
    +#define MAC_CTRL_TX_FLOW 4 /* 1: Transmit Flow Control Enable */
    +#define MAC_CTRL_RX_FLOW 8 /* 1: Receive Flow Control Enable */
    +#define MAC_CTRL_LOOPBACK 0x10 /* 1: Loop back at G/MII Interface */
    +#define MAC_CTRL_DUPLX 0x20 /* 1: Full-duplex mode 0: Half-duplex mode */
    +#define MAC_CTRL_ADD_CRC 0x40 /* 1: Instruct MAC to attach CRC on all egress Ethernet frames */
    +#define MAC_CTRL_PAD 0x80 /* 1: Instruct MAC to pad short frames to 60-bytes, and then attach CRC. This bit has higher priority over CRC_EN */
    +#define MAC_CTRL_LENCHK 0x100 /* 1: Instruct MAC to check if length field matches the real packet length */
    +#define MAC_CTRL_HUGE_EN 0x200 /* 1: receive Jumbo frame enable */
    +#define MAC_CTRL_PRMLEN_SHIFT 10 /* Preamble length */
    +#define MAC_CTRL_PRMLEN_MASK 0xf
    +#define MAC_CTRL_RMV_VLAN 0x4000 /* 1: to remove VLAN Tag automatically from all receive packets */
    +#define MAC_CTRL_PROMIS_EN 0x8000 /* 1: Promiscuous Mode Enable */
    +#define MAC_CTRL_TX_PAUSE 0x10000 /* 1: transmit test pause */
    +#define MAC_CTRL_SCNT 0x20000 /* 1: shortcut slot time counter */
    +#define MAC_CTRL_SRST_TX 0x40000 /* 1: synchronized reset Transmit MAC module */
    +#define MAC_CTRL_TX_SIMURST 0x80000 /* 1: transmit simulation reset */
    +#define MAC_CTRL_SPEED_SHIFT 20 /* 10: gigabit 01:10M/100M */
    +#define MAC_CTRL_SPEED_MASK 0x300000
    +#define MAC_CTRL_SPEED_1000 2
    +#define MAC_CTRL_SPEED_10_100 1
    +#define MAC_CTRL_DBG_TX_BKPRESURE 0x400000 /* 1: transmit maximum backoff (half-duplex test bit) */
    +#define MAC_CTRL_TX_HUGE 0x800000 /* 1: transmit huge enable */
    +#define MAC_CTRL_RX_CHKSUM_EN 0x1000000 /* 1: RX checksum enable */
    +#define MAC_CTRL_MC_ALL_EN 0x2000000 /* 1: upload all multicast frame without error to system */
    +#define MAC_CTRL_BC_EN 0x4000000 /* 1: upload all broadcast frame without error to system */
    +#define MAC_CTRL_DBG 0x8000000 /* 1: upload all received frame to system (Debug Mode) */
    +
    +/* MAC IPG/IFG Control Register */
    +#define REG_MAC_IPG_IFG 0x1484
    +#define MAC_IPG_IFG_IPGT_SHIFT 0 /* Desired back to back inter-packet gap. The default is 96-bit time */
    +#define MAC_IPG_IFG_IPGT_MASK 0x7f
    +#define MAC_IPG_IFG_MIFG_SHIFT 8 /* Minimum number of IFG to enforce in between RX frames */
    +#define MAC_IPG_IFG_MIFG_MASK 0xff /* Frame gap below such IFP is dropped */
    +#define MAC_IPG_IFG_IPGR1_SHIFT 16 /* 64bit Carrier-Sense window */
    +#define MAC_IPG_IFG_IPGR1_MASK 0x7f
    +#define MAC_IPG_IFG_IPGR2_SHIFT 24 /* 96-bit IPG window */
    +#define MAC_IPG_IFG_IPGR2_MASK 0x7f
    +
    +/* MAC STATION ADDRESS */
    +#define REG_MAC_STA_ADDR 0x1488
    +
    +/* Hash table for multicast address */
    +#define REG_RX_HASH_TABLE 0x1490
    +
    +
    +/* MAC Half-Duplex Control Register */
    +#define REG_MAC_HALF_DUPLX_CTRL 0x1498
    +#define MAC_HALF_DUPLX_CTRL_LCOL_SHIFT 0 /* Collision Window */
    +#define MAC_HALF_DUPLX_CTRL_LCOL_MASK 0x3ff
    +#define MAC_HALF_DUPLX_CTRL_RETRY_SHIFT 12 /* Retransmission maximum, afterwards the packet will be discarded */
    +#define MAC_HALF_DUPLX_CTRL_RETRY_MASK 0xf
    +#define MAC_HALF_DUPLX_CTRL_EXC_DEF_EN 0x10000 /* 1: Allow the transmission of a packet which has been excessively deferred */
    +#define MAC_HALF_DUPLX_CTRL_NO_BACK_C 0x20000 /* 1: No back-off on collision, immediately start the retransmission */
    +#define MAC_HALF_DUPLX_CTRL_NO_BACK_P 0x40000 /* 1: No back-off on backpressure, immediately start the transmission after back pressure */
    +#define MAC_HALF_DUPLX_CTRL_ABEBE 0x80000 /* 1: Alternative Binary Exponential Back-off Enabled */
    +#define MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT 20 /* Maximum binary exponential number */
    +#define MAC_HALF_DUPLX_CTRL_ABEBT_MASK 0xf
    +#define MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT 24 /* IPG to start JAM for collision based flow control in half-duplex */
    +#define MAC_HALF_DUPLX_CTRL_JAMIPG_MASK 0xf /* mode. In unit of 8-bit time */
    +
    +/* Maximum Frame Length Control Register */
    +#define REG_MTU 0x149c
    +
    +/* Wake-On-Lan control register */
    +#define REG_WOL_CTRL 0x14a0
    +#define WOL_PATTERN_EN 0x00000001
    +#define WOL_PATTERN_PME_EN 0x00000002
    +#define WOL_MAGIC_EN 0x00000004
    +#define WOL_MAGIC_PME_EN 0x00000008
    +#define WOL_LINK_CHG_EN 0x00000010
    +#define WOL_LINK_CHG_PME_EN 0x00000020
    +#define WOL_PATTERN_ST 0x00000100
    +#define WOL_MAGIC_ST 0x00000200
    +#define WOL_LINKCHG_ST 0x00000400
    +#define WOL_CLK_SWITCH_EN 0x00008000
    +#define WOL_PT0_EN 0x00010000
    +#define WOL_PT1_EN 0x00020000
    +#define WOL_PT2_EN 0x00040000
    +#define WOL_PT3_EN 0x00080000
    +#define WOL_PT4_EN 0x00100000
    +#define WOL_PT5_EN 0x00200000
    +#define WOL_PT6_EN 0x00400000
    +/* WOL Length ( 2 DWORD ) */
    +#define REG_WOL_PATTERN_LEN 0x14a4
    +#define WOL_PT_LEN_MASK 0x7f
    +#define WOL_PT0_LEN_SHIFT 0
    +#define WOL_PT1_LEN_SHIFT 8
    +#define WOL_PT2_LEN_SHIFT 16
    +#define WOL_PT3_LEN_SHIFT 24
    +#define WOL_PT4_LEN_SHIFT 0
    +#define WOL_PT5_LEN_SHIFT 8
    +#define WOL_PT6_LEN_SHIFT 16
    +
    +/* Internal SRAM Partition Register */
    +#define REG_SRAM_TRD_ADDR 0x1518
    +#define REG_SRAM_TRD_LEN 0x151C
    +#define REG_SRAM_RXF_ADDR 0x1520
    +#define REG_SRAM_RXF_LEN 0x1524
    +#define REG_SRAM_TXF_ADDR 0x1528
    +#define REG_SRAM_TXF_LEN 0x152C
    +#define REG_SRAM_TCPH_ADDR 0x1530
    +#define REG_SRAM_PKTH_ADDR 0x1532
    +
    +/* Load Ptr Register */
    +#define REG_LOAD_PTR 0x1534 /* Software sets this bit after the initialization of the head and tail */
    +
    +/*
    + * addresses of all descriptors, as well as the following descriptor
    + * control register, which triggers each function block to load the head
    + * pointer to prepare for the operation. This bit is then self-cleared
    + * after one cycle.
    + */
    +
    +/* Descriptor Control register */
    +#define REG_RXF3_BASE_ADDR_HI 0x153C
    +#define REG_DESC_BASE_ADDR_HI 0x1540
    +#define REG_RXF0_BASE_ADDR_HI 0x1540 /* share with DESC BASE ADDR HI */
    +#define REG_HOST_RXF0_PAGE0_LO 0x1544
    +#define REG_HOST_RXF0_PAGE1_LO 0x1548
    +#define REG_TPD_BASE_ADDR_LO 0x154C
    +#define REG_RXF1_BASE_ADDR_HI 0x1550
    +#define REG_RXF2_BASE_ADDR_HI 0x1554
    +#define REG_HOST_RXFPAGE_SIZE 0x1558
    +#define REG_TPD_RING_SIZE 0x155C
    +/* RSS about */
    +#define REG_RSS_KEY0 0x14B0
    +#define REG_RSS_KEY1 0x14B4
    +#define REG_RSS_KEY2 0x14B8
    +#define REG_RSS_KEY3 0x14BC
    +#define REG_RSS_KEY4 0x14C0
    +#define REG_RSS_KEY5 0x14C4
    +#define REG_RSS_KEY6 0x14C8
    +#define REG_RSS_KEY7 0x14CC
    +#define REG_RSS_KEY8 0x14D0
    +#define REG_RSS_KEY9 0x14D4
    +#define REG_IDT_TABLE4 0x14E0
    +#define REG_IDT_TABLE5 0x14E4
    +#define REG_IDT_TABLE6 0x14E8
    +#define REG_IDT_TABLE7 0x14EC
    +#define REG_IDT_TABLE0 0x1560
    +#define REG_IDT_TABLE1 0x1564
    +#define REG_IDT_TABLE2 0x1568
    +#define REG_IDT_TABLE3 0x156C
    +#define REG_IDT_TABLE REG_IDT_TABLE0
    +#define REG_RSS_HASH_VALUE 0x1570
    +#define REG_RSS_HASH_FLAG 0x1574
    +#define REG_BASE_CPU_NUMBER 0x157C
    +
    +
    +/* TXQ Control Register */
    +#define REG_TXQ_CTRL 0x1580
    +#define TXQ_CTRL_NUM_TPD_BURST_MASK 0xF
    +#define TXQ_CTRL_NUM_TPD_BURST_SHIFT 0
    +#define TXQ_CTRL_EN 0x20 /* 1: Enable TXQ */
    +#define TXQ_CTRL_ENH_MODE 0x40 /* Performance enhancement mode, in which up to two back-to-back DMA read commands might be dispatched. */
    +#define TXQ_CTRL_TXF_BURST_NUM_SHIFT 16 /* Number of data byte to read in a cache-aligned burst. Each SRAM entry is 8-byte in length. */
    +#define TXQ_CTRL_TXF_BURST_NUM_MASK 0xffff
    +
    +/* Jumbo packet Threshold for task offload */
    +#define REG_TX_EARLY_TH 0x1584 /* Jumbo frame threshold in QWORD unit. Packet greater than */
    +/* JUMBO_TASK_OFFLOAD_THRESHOLD will not be task offloaded. */
    +#define TX_TX_EARLY_TH_MASK 0x7ff
    +#define TX_TX_EARLY_TH_SHIFT 0
    +
    +
    +/* RXQ Control Register */
    +#define REG_RXQ_CTRL 0x15A0
    +#define RXQ_CTRL_PBA_ALIGN_32 0 /* rx-packet alignment */
    +#define RXQ_CTRL_PBA_ALIGN_64 1
    +#define RXQ_CTRL_PBA_ALIGN_128 2
    +#define RXQ_CTRL_PBA_ALIGN_256 3
    +#define RXQ_CTRL_Q1_EN 0x10
    +#define RXQ_CTRL_Q2_EN 0x20
    +#define RXQ_CTRL_Q3_EN 0x40
    +#define RXQ_CTRL_IPV6_XSUM_VERIFY_EN 0x80
    +#define RXQ_CTRL_HASH_TLEN_SHIFT 8
    +#define RXQ_CTRL_HASH_TLEN_MASK 0xFF
    +#define RXQ_CTRL_HASH_TYPE_IPV4 0x10000
    +#define RXQ_CTRL_HASH_TYPE_IPV4_TCP 0x20000
    +#define RXQ_CTRL_HASH_TYPE_IPV6 0x40000
    +#define RXQ_CTRL_HASH_TYPE_IPV6_TCP 0x80000
    +#define RXQ_CTRL_RSS_MODE_DISABLE 0
    +#define RXQ_CTRL_RSS_MODE_SQSINT 0x4000000
    +#define RXQ_CTRL_RSS_MODE_MQUESINT 0x8000000
    +#define RXQ_CTRL_RSS_MODE_MQUEMINT 0xC000000
    +#define RXQ_CTRL_NIP_QUEUE_SEL_TBL 0x10000000
    +#define RXQ_CTRL_HASH_ENABLE 0x20000000
    +#define RXQ_CTRL_CUT_THRU_EN 0x40000000
    +#define RXQ_CTRL_EN 0x80000000
    +
    +/* Rx jumbo packet threshold and rrd retirement timer */
    +#define REG_RXQ_JMBOSZ_RRDTIM 0x15A4
    +/*
    + * Jumbo packet threshold for non-VLAN packet, in QWORD (64-bit) unit.
    + * When the packet length greater than or equal to this value, RXQ
    + * shall start cut-through forwarding of the received packet.
    + */
    +#define RXQ_JMBOSZ_TH_MASK 0x7ff
    +#define RXQ_JMBOSZ_TH_SHIFT 0 /* RRD retirement timer. Decrement by 1 after every 512ns passes*/
    +#define RXQ_JMBO_LKAH_MASK 0xf
    +#define RXQ_JMBO_LKAH_SHIFT 11
    +
    +/* RXF flow control register */
    +#define REG_RXQ_RXF_PAUSE_THRESH 0x15A8
    +#define RXQ_RXF_PAUSE_TH_HI_SHIFT 0
    +#define RXQ_RXF_PAUSE_TH_HI_MASK 0xfff
    +#define RXQ_RXF_PAUSE_TH_LO_SHIFT 16
    +#define RXQ_RXF_PAUSE_TH_LO_MASK 0xfff
    +
    +
    +/* DMA Engine Control Register */
    +#define REG_DMA_CTRL 0x15C0
    +#define DMA_CTRL_DMAR_IN_ORDER 0x1
    +#define DMA_CTRL_DMAR_ENH_ORDER 0x2
    +#define DMA_CTRL_DMAR_OUT_ORDER 0x4
    +#define DMA_CTRL_RCB_VALUE 0x8
    +#define DMA_CTRL_DMAR_BURST_LEN_SHIFT 4
    +#define DMA_CTRL_DMAR_BURST_LEN_MASK 7
    +#define DMA_CTRL_DMAW_BURST_LEN_SHIFT 7
    +#define DMA_CTRL_DMAW_BURST_LEN_MASK 7
    +#define DMA_CTRL_DMAR_REQ_PRI 0x400
    +#define DMA_CTRL_DMAR_DLY_CNT_MASK 0x1F
    +#define DMA_CTRL_DMAR_DLY_CNT_SHIFT 11
    +#define DMA_CTRL_DMAW_DLY_CNT_MASK 0xF
    +#define DMA_CTRL_DMAW_DLY_CNT_SHIFT 16
    +#define DMA_CTRL_TXCMB_EN 0x100000
    +#define DMA_CTRL_RXCMB_EN 0x200000
    +
    +
    +/* CMB/SMB Control Register */
    +#define REG_SMB_STAT_TIMER 0x15C4
    +#define REG_TRIG_RRD_THRESH 0x15CA
    +#define REG_TRIG_TPD_THRESH 0x15C8
    +#define REG_TRIG_TXTIMER 0x15CC
    +#define REG_TRIG_RXTIMER 0x15CE
    +
    +/* HOST RXF Page 1,2,3 address */
    +#define REG_HOST_RXF1_PAGE0_LO 0x15D0
    +#define REG_HOST_RXF1_PAGE1_LO 0x15D4
    +#define REG_HOST_RXF2_PAGE0_LO 0x15D8
    +#define REG_HOST_RXF2_PAGE1_LO 0x15DC
    +#define REG_HOST_RXF3_PAGE0_LO 0x15E0
    +#define REG_HOST_RXF3_PAGE1_LO 0x15E4
    +
    +/* Mail box */
    +#define REG_MB_RXF1_RADDR 0x15B4
    +#define REG_MB_RXF2_RADDR 0x15B8
    +#define REG_MB_RXF3_RADDR 0x15BC
    +#define REG_MB_TPD_PROD_IDX 0x15F0
    +
    +/* RXF-Page 0-3 PageNo & Valid bit */
    +#define REG_HOST_RXF0_PAGE0_VLD 0x15F4
    +#define HOST_RXF_VALID 1
    +#define HOST_RXF_PAGENO_SHIFT 1
    +#define HOST_RXF_PAGENO_MASK 0x7F
    +#define REG_HOST_RXF0_PAGE1_VLD 0x15F5
    +#define REG_HOST_RXF1_PAGE0_VLD 0x15F6
    +#define REG_HOST_RXF1_PAGE1_VLD 0x15F7
    +#define REG_HOST_RXF2_PAGE0_VLD 0x15F8
    +#define REG_HOST_RXF2_PAGE1_VLD 0x15F9
    +#define REG_HOST_RXF3_PAGE0_VLD 0x15FA
    +#define REG_HOST_RXF3_PAGE1_VLD 0x15FB
    +
    +/* Interrupt Status Register */
    +#define REG_ISR 0x1600
    +#define ISR_SMB 1
    +#define ISR_TIMER 2 /* Interrupt when Timer is counted down to zero */
    +/*
    + * Software manual interrupt, for debug. Set when SW_MAN_INT_EN is set
    + * in Table 51 Selene Master Control Register (Offset 0x1400).
    + */
    +#define ISR_MANUAL 4
    +#define ISR_HW_RXF_OV 8 /* RXF overflow interrupt */
    +#define ISR_HOST_RXF0_OV 0x10
    +#define ISR_HOST_RXF1_OV 0x20
    +#define ISR_HOST_RXF2_OV 0x40
    +#define ISR_HOST_RXF3_OV 0x80
    +#define ISR_TXF_UN 0x100
    +#define ISR_RX0_PAGE_FULL 0x200
    +#define ISR_DMAR_TO_RST 0x400
    +#define ISR_DMAW_TO_RST 0x800
    +#define ISR_GPHY 0x1000
    +#define ISR_TX_CREDIT 0x2000
    +#define ISR_GPHY_LPW 0x4000 /* GPHY low power state interrupt */
    +#define ISR_RX_PKT 0x10000 /* One packet received, triggered by RFD */
    +#define ISR_TX_PKT 0x20000 /* One packet transmitted, triggered by TPD */
    +#define ISR_TX_DMA 0x40000
    +#define ISR_RX_PKT_1 0x80000
    +#define ISR_RX_PKT_2 0x100000
    +#define ISR_RX_PKT_3 0x200000
    +#define ISR_MAC_RX 0x400000
    +#define ISR_MAC_TX 0x800000
    +#define ISR_UR_DETECTED 0x1000000
    +#define ISR_FERR_DETECTED 0x2000000
    +#define ISR_NFERR_DETECTED 0x4000000
    +#define ISR_CERR_DETECTED 0x8000000
    +#define ISR_PHY_LINKDOWN 0x10000000
    +#define ISR_DIS_INT 0x80000000
    +
    +
    +/* Interrupt Mask Register */
    +#define REG_IMR 0x1604
    +
    +
    +#define IMR_NORMAL_MASK (\
    + ISR_SMB |\
    + ISR_TXF_UN |\
    + ISR_HW_RXF_OV |\
    + ISR_HOST_RXF0_OV|\
    + ISR_MANUAL |\
    + ISR_GPHY |\
    + ISR_GPHY_LPW |\
    + ISR_DMAR_TO_RST |\
    + ISR_DMAW_TO_RST |\
    + ISR_PHY_LINKDOWN|\
    + ISR_RX_PKT |\
    + ISR_TX_PKT)
    +
    +#define ISR_TX_EVENT (ISR_TXF_UN | ISR_TX_PKT)
    +#define ISR_RX_EVENT (ISR_HOST_RXF0_OV | ISR_HW_RXF_OV | ISR_RX_PKT)
    +
    +#define REG_MAC_RX_STATUS_BIN 0x1700
    +#define REG_MAC_RX_STATUS_END 0x175c
    +#define REG_MAC_TX_STATUS_BIN 0x1760
    +#define REG_MAC_TX_STATUS_END 0x17c0
    +
    +/* Hardware Offset Register */
    +#define REG_HOST_RXF0_PAGEOFF 0x1800
    +#define REG_TPD_CONS_IDX 0x1804
    +#define REG_HOST_RXF1_PAGEOFF 0x1808
    +#define REG_HOST_RXF2_PAGEOFF 0x180C
    +#define REG_HOST_RXF3_PAGEOFF 0x1810
    +
    +/* RXF-Page 0-3 Offset DMA Address */
    +#define REG_HOST_RXF0_MB0_LO 0x1820
    +#define REG_HOST_RXF0_MB1_LO 0x1824
    +#define REG_HOST_RXF1_MB0_LO 0x1828
    +#define REG_HOST_RXF1_MB1_LO 0x182C
    +#define REG_HOST_RXF2_MB0_LO 0x1830
    +#define REG_HOST_RXF2_MB1_LO 0x1834
    +#define REG_HOST_RXF3_MB0_LO 0x1838
    +#define REG_HOST_RXF3_MB1_LO 0x183C
    +
    +/* Tpd CMB DMA Address */
    +#define REG_HOST_TX_CMB_LO 0x1840
    +#define REG_HOST_SMB_ADDR_LO 0x1844
    +
    +/* DEBUG ADDR */
    +#define REG_DEBUG_DATA0 0x1900
    +#define REG_DEBUG_DATA1 0x1904
    +
    +/***************************** MII definition ***************************************/
    +/* PHY Common Register */
    +#define MII_BMCR 0x00
    +#define MII_BMSR 0x01
    +#define MII_PHYSID1 0x02
    +#define MII_PHYSID2 0x03
    +#define MII_ADVERTISE 0x04
    +#define MII_LPA 0x05
    +#define MII_EXPANSION 0x06
    +#define MII_AT001_CR 0x09
    +#define MII_AT001_SR 0x0A
    +#define MII_AT001_ESR 0x0F
    +#define MII_AT001_PSCR 0x10
    +#define MII_AT001_PSSR 0x11
    +#define MII_INT_CTRL 0x12
    +#define MII_INT_STATUS 0x13
    +#define MII_SMARTSPEED 0x14
    +#define MII_RERRCOUNTER 0x15
    +#define MII_SREVISION 0x16
    +#define MII_RESV1 0x17
    +#define MII_LBRERROR 0x18
    +#define MII_PHYADDR 0x19
    +#define MII_RESV2 0x1a
    +#define MII_TPISTATUS 0x1b
    +#define MII_NCONFIG 0x1c
    +
    +#define MII_DBG_ADDR 0x1D
    +#define MII_DBG_DATA 0x1E
    +
    +
    +/* PHY Control Register */
    +#define MII_CR_SPEED_SELECT_MSB 0x0040 /* bits 6,13: 10=1000, 01=100, 00=10 */
    +#define MII_CR_COLL_TEST_ENABLE 0x0080 /* Collision test enable */
    +#define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */
    +#define MII_CR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */
    +#define MII_CR_ISOLATE 0x0400 /* Isolate PHY from MII */
    +#define MII_CR_POWER_DOWN 0x0800 /* Power down */
    +#define MII_CR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */
    +#define MII_CR_SPEED_SELECT_LSB 0x2000 /* bits 6,13: 10=1000, 01=100, 00=10 */
    +#define MII_CR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */
    +#define MII_CR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */
    +#define MII_CR_SPEED_MASK 0x2040
    +#define MII_CR_SPEED_1000 0x0040
    +#define MII_CR_SPEED_100 0x2000
    +#define MII_CR_SPEED_10 0x0000
    +
    +
    +/* PHY Status Register */
    +#define MII_SR_EXTENDED_CAPS 0x0001 /* Extended register capabilities */
    +#define MII_SR_JABBER_DETECT 0x0002 /* Jabber Detected */
    +#define MII_SR_LINK_STATUS 0x0004 /* Link Status 1 = link */
    +#define MII_SR_AUTONEG_CAPS 0x0008 /* Auto Neg Capable */
    +#define MII_SR_REMOTE_FAULT 0x0010 /* Remote Fault Detect */
    +#define MII_SR_AUTONEG_COMPLETE 0x0020 /* Auto Neg Complete */
    +#define MII_SR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */
    +#define MII_SR_EXTENDED_STATUS 0x0100 /* Ext. status info in Reg 0x0F */
    +#define MII_SR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */
    +#define MII_SR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */
    +#define MII_SR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */
    +#define MII_SR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */
    +#define MII_SR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */
    +#define MII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */
    +#define MII_SR_100T4_CAPS 0x8000 /* 100T4 Capable */
    +
    +/* Link partner ability register. */
    +#define MII_LPA_SLCT 0x001f /* Same as advertise selector */
    +#define MII_LPA_10HALF 0x0020 /* Can do 10mbps half-duplex */
    +#define MII_LPA_10FULL 0x0040 /* Can do 10mbps full-duplex */
    +#define MII_LPA_100HALF 0x0080 /* Can do 100mbps half-duplex */
    +#define MII_LPA_100FULL 0x0100 /* Can do 100mbps full-duplex */
    +#define MII_LPA_100BASE4 0x0200 /* 100BASE-T4 */
    +#define MII_LPA_PAUSE 0x0400 /* PAUSE */
    +#define MII_LPA_ASYPAUSE 0x0800 /* Asymmetrical PAUSE */
    +#define MII_LPA_RFAULT 0x2000 /* Link partner faulted */
    +#define MII_LPA_LPACK 0x4000 /* Link partner acked us */
    +#define MII_LPA_NPAGE 0x8000 /* Next page bit */
    +
    +/* Autoneg Advertisement Register */
    +#define MII_AR_SELECTOR_FIELD 0x0001 /* indicates IEEE 802.3 CSMA/CD */
    +#define MII_AR_10T_HD_CAPS 0x0020 /* 10T Half Duplex Capable */
    +#define MII_AR_10T_FD_CAPS 0x0040 /* 10T Full Duplex Capable */
    +#define MII_AR_100TX_HD_CAPS 0x0080 /* 100TX Half Duplex Capable */
    +#define MII_AR_100TX_FD_CAPS 0x0100 /* 100TX Full Duplex Capable */
    +#define MII_AR_100T4_CAPS 0x0200 /* 100T4 Capable */
    +#define MII_AR_PAUSE 0x0400 /* Pause operation desired */
    +#define MII_AR_ASM_DIR 0x0800 /* Asymmetric Pause Direction bit */
    +#define MII_AR_REMOTE_FAULT 0x2000 /* Remote Fault detected */
    +#define MII_AR_NEXT_PAGE 0x8000 /* Next Page ability supported */
    +#define MII_AR_SPEED_MASK 0x01E0
    +#define MII_AR_DEFAULT_CAP_MASK 0x0DE0
    +
    +/* 1000BASE-T Control Register */
    +#define MII_AT001_CR_1000T_HD_CAPS 0x0100 /* Advertise 1000T HD capability */
    +#define MII_AT001_CR_1000T_FD_CAPS 0x0200 /* Advertise 1000T FD capability */
    +#define MII_AT001_CR_1000T_REPEATER_DTE 0x0400 /* 1=Repeater/switch device port */
    +/* 0=DTE device */
    +#define MII_AT001_CR_1000T_MS_VALUE 0x0800 /* 1=Configure PHY as Master */
    +/* 0=Configure PHY as Slave */
    +#define MII_AT001_CR_1000T_MS_ENABLE 0x1000 /* 1=Master/Slave manual config value */
    +/* 0=Automatic Master/Slave config */
    +#define MII_AT001_CR_1000T_TEST_MODE_NORMAL 0x0000 /* Normal Operation */
    +#define MII_AT001_CR_1000T_TEST_MODE_1 0x2000 /* Transmit Waveform test */
    +#define MII_AT001_CR_1000T_TEST_MODE_2 0x4000 /* Master Transmit Jitter test */
    +#define MII_AT001_CR_1000T_TEST_MODE_3 0x6000 /* Slave Transmit Jitter test */
    +#define MII_AT001_CR_1000T_TEST_MODE_4 0x8000 /* Transmitter Distortion test */
    +#define MII_AT001_CR_1000T_SPEED_MASK 0x0300
    +#define MII_AT001_CR_1000T_DEFAULT_CAP_MASK 0x0300
    +
    +/* 1000BASE-T Status Register */
    +#define MII_AT001_SR_1000T_LP_HD_CAPS 0x0400 /* LP is 1000T HD capable */
    +#define MII_AT001_SR_1000T_LP_FD_CAPS 0x0800 /* LP is 1000T FD capable */
    +#define MII_AT001_SR_1000T_REMOTE_RX_STATUS 0x1000 /* Remote receiver OK */
    +#define MII_AT001_SR_1000T_LOCAL_RX_STATUS 0x2000 /* Local receiver OK */
    +#define MII_AT001_SR_1000T_MS_CONFIG_RES 0x4000 /* 1=Local TX is Master, 0=Slave */
    +#define MII_AT001_SR_1000T_MS_CONFIG_FAULT 0x8000 /* Master/Slave config fault */
    +#define MII_AT001_SR_1000T_REMOTE_RX_STATUS_SHIFT 12
    +#define MII_AT001_SR_1000T_LOCAL_RX_STATUS_SHIFT 13
    +
    +/* Extended Status Register */
    +#define MII_AT001_ESR_1000T_HD_CAPS 0x1000 /* 1000T HD capable */
    +#define MII_AT001_ESR_1000T_FD_CAPS 0x2000 /* 1000T FD capable */
    +#define MII_AT001_ESR_1000X_HD_CAPS 0x4000 /* 1000X HD capable */
    +#define MII_AT001_ESR_1000X_FD_CAPS 0x8000 /* 1000X FD capable */
    +
    +/* AT001 PHY Specific Control Register */
    +#define MII_AT001_PSCR_JABBER_DISABLE 0x0001 /* 1=Jabber Function disabled */
    +#define MII_AT001_PSCR_POLARITY_REVERSAL 0x0002 /* 1=Polarity Reversal enabled */
    +#define MII_AT001_PSCR_SQE_TEST 0x0004 /* 1=SQE Test enabled */
    +#define MII_AT001_PSCR_MAC_POWERDOWN 0x0008
    +#define MII_AT001_PSCR_CLK125_DISABLE 0x0010 /* 1=CLK125 low,
    + * 0=CLK125 toggling
    + */
    +#define MII_AT001_PSCR_MDI_MANUAL_MODE 0x0000 /* MDI Crossover Mode bits 6:5 */
    +/* Manual MDI configuration */
    +#define MII_AT001_PSCR_MDIX_MANUAL_MODE 0x0020 /* Manual MDIX configuration */
    +#define MII_AT001_PSCR_AUTO_X_1000T 0x0040 /* 1000BASE-T: Auto crossover,
    + * 100BASE-TX/10BASE-T:
    + * MDI Mode
    + */
    +#define MII_AT001_PSCR_AUTO_X_MODE 0x0060 /* Auto crossover enabled
    + * all speeds.
    + */
    +#define MII_AT001_PSCR_10BT_EXT_DIST_ENABLE 0x0080
    +/* 1=Enable Extended 10BASE-T distance
    + * (Lower 10BASE-T RX Threshold)
    + * 0=Normal 10BASE-T RX Threshold */
    +#define MII_AT001_PSCR_MII_5BIT_ENABLE 0x0100
    +/* 1=5-Bit interface in 100BASE-TX
    + * 0=MII interface in 100BASE-TX */
    +#define MII_AT001_PSCR_SCRAMBLER_DISABLE 0x0200 /* 1=Scrambler disable */
    +#define MII_AT001_PSCR_FORCE_LINK_GOOD 0x0400 /* 1=Force link good */
    +#define MII_AT001_PSCR_ASSERT_CRS_ON_TX 0x0800 /* 1=Assert CRS on Transmit */
    +#define MII_AT001_PSCR_POLARITY_REVERSAL_SHIFT 1
    +#define MII_AT001_PSCR_AUTO_X_MODE_SHIFT 5
    +#define MII_AT001_PSCR_10BT_EXT_DIST_ENABLE_SHIFT 7
    +/* AT001 PHY Specific Status Register */
    +#define MII_AT001_PSSR_SPD_DPLX_RESOLVED 0x0800 /* 1=Speed & Duplex resolved */
    +#define MII_AT001_PSSR_DPLX 0x2000 /* 1=Duplex 0=Half Duplex */
    +#define MII_AT001_PSSR_SPEED 0xC000 /* Speed, bits 14:15 */
    +#define MII_AT001_PSSR_10MBS 0x0000 /* 00=10Mbs */
    +#define MII_AT001_PSSR_100MBS 0x4000 /* 01=100Mbs */
    +#define MII_AT001_PSSR_1000MBS 0x8000 /* 10=1000Mbs */
    +
    +#endif /*_ATHL1E_HW_H_*/
    diff --git a/drivers/net/atl1e/atl1e_main.c b/drivers/net/atl1e/atl1e_main.c
    new file mode 100644
    index 0000000..367c727
    --- /dev/null
    +++ b/drivers/net/atl1e/atl1e_main.c
    @@ -0,0 +1,2599 @@
    +/*
    + * Copyright(c) 2007 Atheros Corporation. All rights reserved.
    + *
    + * Derived from Intel e1000 driver
    + * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
    + *
    + * This program is free software; you can redistribute it and/or modify it
    + * under the terms of the GNU General Public License as published by the Free
    + * Software Foundation; either version 2 of the License, or (at your option)
    + * any later version.
    + *
    + * This program is distributed in the hope that it will be useful, but WITHOUT
    + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
    + * more details.
    + *
    + * You should have received a copy of the GNU General Public License along with
    + * this program; if not, write to the Free Software Foundation, Inc., 59
    + * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
    + */
    +
    +#include "atl1e.h"
    +
    +#define DRV_VERSION "1.0.0.7-NAPI"
    +
    +char atl1e_driver_name[] = "ATL1E";
    +char atl1e_driver_version[] = DRV_VERSION;
    +#define PCI_DEVICE_ID_ATTANSIC_L1E 0x1026
    +/*
    + * atl1e_pci_tbl - PCI Device ID Table
    + *
    + * Wildcard entries (PCI_ANY_ID) should come last
    + * Last entry must be all 0s
    + *
    + * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
    + * Class, Class Mask, private data (not used) }
    + */
    +static struct pci_device_id atl1e_pci_tbl[] = {
    + {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATTANSIC_L1E)},
    + /* required last entry */
    + { 0 }
    +};
    +MODULE_DEVICE_TABLE(pci, atl1e_pci_tbl);
    +
    +MODULE_AUTHOR("Atheros Corporation, , Jie Yang ");
    +MODULE_DESCRIPTION("Atheros 1000M Ethernet Network Driver");
    +MODULE_LICENSE("GPL");
    +MODULE_VERSION(DRV_VERSION);
    +
    +static inline void atl1e_setup_mac_ctrl(struct atl1e_adapter *adapter);
    +
    +static const u16
    +atl1e_rx_page_vld_regs[AT_MAX_RECEIVE_QUEUE][AT_PAGE_NUM_PER_QUEUE] =
    +{
    + {REG_HOST_RXF0_PAGE0_VLD, REG_HOST_RXF0_PAGE1_VLD},
    + {REG_HOST_RXF1_PAGE0_VLD, REG_HOST_RXF1_PAGE1_VLD},
    + {REG_HOST_RXF2_PAGE0_VLD, REG_HOST_RXF2_PAGE1_VLD},
    + {REG_HOST_RXF3_PAGE0_VLD, REG_HOST_RXF3_PAGE1_VLD}
    +};
    +
    +static const u16 atl1e_rx_page_hi_addr_regs[AT_MAX_RECEIVE_QUEUE] =
    +{
    + REG_RXF0_BASE_ADDR_HI,
    + REG_RXF1_BASE_ADDR_HI,
    + REG_RXF2_BASE_ADDR_HI,
    + REG_RXF3_BASE_ADDR_HI
    +};
    +
    +static const u16
    +atl1e_rx_page_lo_addr_regs[AT_MAX_RECEIVE_QUEUE][AT_PAGE_NUM_PER_QUEUE] =
    +{
    + {REG_HOST_RXF0_PAGE0_LO, REG_HOST_RXF0_PAGE1_LO},
    + {REG_HOST_RXF1_PAGE0_LO, REG_HOST_RXF1_PAGE1_LO},
    + {REG_HOST_RXF2_PAGE0_LO, REG_HOST_RXF2_PAGE1_LO},
    + {REG_HOST_RXF3_PAGE0_LO, REG_HOST_RXF3_PAGE1_LO}
    +};
    +
    +static const u16
    +atl1e_rx_page_write_offset_regs[AT_MAX_RECEIVE_QUEUE][AT_PAGE_NUM_PER_QUEUE] =
    +{
    + {REG_HOST_RXF0_MB0_LO, REG_HOST_RXF0_MB1_LO},
    + {REG_HOST_RXF1_MB0_LO, REG_HOST_RXF1_MB1_LO},
    + {REG_HOST_RXF2_MB0_LO, REG_HOST_RXF2_MB1_LO},
    + {REG_HOST_RXF3_MB0_LO, REG_HOST_RXF3_MB1_LO}
    +};
    +
    +static const u16 atl1e_pay_load_size[] = {
    + 128, 256, 512, 1024, 2048, 4096,
    +};
    +
    +/*
    + * atl1e_irq_enable - Enable default interrupt generation settings
    + * @adapter: board private structure
    + */
    +static inline void atl1e_irq_enable(struct atl1e_adapter *adapter)
    +{
    + if (likely(atomic_dec_and_test(&adapter->irq_sem))) {
    + AT_WRITE_REG(&adapter->hw, REG_ISR, 0);
    + AT_WRITE_REG(&adapter->hw, REG_IMR, IMR_NORMAL_MASK);
    + AT_WRITE_FLUSH(&adapter->hw);
    + }
    +}
    +
    +/*
    + * atl1e_irq_disable - Mask off interrupt generation on the NIC
    + * @adapter: board private structure
    + */
    +static inline void atl1e_irq_disable(struct atl1e_adapter *adapter)
    +{
    + atomic_inc(&adapter->irq_sem);
    + AT_WRITE_REG(&adapter->hw, REG_IMR, 0);
    + AT_WRITE_FLUSH(&adapter->hw);
    + synchronize_irq(adapter->pdev->irq);
    +}
    +
    +/*
    + * atl1e_irq_reset - reset interrupt confiure on the NIC
    + * @adapter: board private structure
    + */
    +static inline void atl1e_irq_reset(struct atl1e_adapter *adapter)
    +{
    + atomic_set(&adapter->irq_sem, 0);
    + AT_WRITE_REG(&adapter->hw, REG_ISR, 0);
    + AT_WRITE_REG(&adapter->hw, REG_IMR, 0);
    + AT_WRITE_FLUSH(&adapter->hw);
    +}
    +
    +/*
    + * atl1e_phy_config - Timer Call-back
    + * @data: pointer to netdev cast into an unsigned long
    + */
    +static void atl1e_phy_config(unsigned long data)
    +{
    + struct atl1e_adapter *adapter = (struct atl1e_adapter *) data;
    + struct atl1e_hw *hw = &adapter->hw;
    + unsigned long flags;
    +
    + spin_lock_irqsave(&adapter->mdio_lock, flags);
    + atl1e_restart_autoneg(hw);
    + spin_unlock_irqrestore(&adapter->mdio_lock, flags);
    +}
    +
    +void atl1e_reinit_locked(struct atl1e_adapter *adapter)
    +{
    +
    + WARN_ON(in_interrupt());
    + while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
    + msleep(1);
    + atl1e_down(adapter);
    + atl1e_up(adapter);
    + clear_bit(__AT_RESETTING, &adapter->flags);
    +}
    +
    +static void atl1e_reset_task(struct work_struct *work)
    +{
    + struct atl1e_adapter *adapter;
    + adapter = container_of(work, struct atl1e_adapter, reset_task);
    +
    + atl1e_reinit_locked(adapter);
    +}
    +
    +static int atl1e_check_link(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_hw *hw = &adapter->hw;
    + struct net_device *netdev = adapter->netdev;
    + struct pci_dev *pdev = adapter->pdev;
    + int err = 0;
    + u16 speed, duplex, phy_data;
    +
    + /* MII_BMSR must read twise */
    + atl1e_read_phy_reg(hw, MII_BMSR, &phy_data);
    + atl1e_read_phy_reg(hw, MII_BMSR, &phy_data);
    + if ((phy_data & BMSR_LSTATUS) == 0) {
    + /* link down */
    + if (netif_carrier_ok(netdev)) { /* old link state: Up */
    + u32 value;
    + /* disable rx */
    + value = AT_READ_REG(hw, REG_MAC_CTRL);
    + value &= ~MAC_CTRL_RX_EN;
    + AT_WRITE_REG(hw, REG_MAC_CTRL, value);
    + adapter->link_speed = SPEED_0;
    + netif_carrier_off(netdev);
    + netif_stop_queue(netdev);
    + }
    + } else {
    + /* Link Up */
    + err = atl1e_get_speed_and_duplex(hw, &speed, &duplex);
    + if (unlikely(err))
    + return err;
    +
    + /* link result is our setting */
    + if (adapter->link_speed != speed ||
    + adapter->link_duplex != duplex) {
    + adapter->link_speed = speed;
    + adapter->link_duplex = duplex;
    + atl1e_setup_mac_ctrl(adapter);
    + dev_info(&pdev->dev,
    + "%s: %s NIC Link is Up<%d Mbps %s>\n",
    + atl1e_driver_name, netdev->name,
    + adapter->link_speed,
    + adapter->link_duplex == FULL_DUPLEX ?
    + "Full Duplex" : "Half Duplex");
    + }
    +
    + if (!netif_carrier_ok(netdev)) {
    + /* Link down -> Up */
    + netif_carrier_on(netdev);
    + netif_wake_queue(netdev);
    + }
    + }
    + return 0;
    +}
    +
    +/*
    + * atl1e_link_chg_task - deal with link change event Out of interrupt context
    + * @netdev: network interface device structure
    + */
    +static void atl1e_link_chg_task(struct work_struct *work)
    +{
    + struct atl1e_adapter *adapter;
    + unsigned long flags;
    +
    + adapter = container_of(work, struct atl1e_adapter, link_chg_task);
    + spin_lock_irqsave(&adapter->mdio_lock, flags);
    + atl1e_check_link(adapter);
    + spin_unlock_irqrestore(&adapter->mdio_lock, flags);
    +}
    +
    +static void atl1e_link_chg_event(struct atl1e_adapter *adapter)
    +{
    + struct net_device *netdev = adapter->netdev;
    + struct pci_dev *pdev = adapter->pdev;
    + u16 phy_data = 0;
    + u16 link_up = 0;
    +
    + spin_lock(&adapter->mdio_lock);
    + atl1e_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
    + atl1e_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
    + spin_unlock(&adapter->mdio_lock);
    + link_up = phy_data & BMSR_LSTATUS;
    + /* notify upper layer link down ASAP */
    + if (!link_up) {
    + if (netif_carrier_ok(netdev)) {
    + /* old link state: Up */
    + dev_info(&pdev->dev, "%s: %s NIC Link is Down\n",
    + atl1e_driver_name, netdev->name);
    + adapter->link_speed = SPEED_0;
    + netif_stop_queue(netdev);
    + }
    + }
    + schedule_work(&adapter->link_chg_task);
    +}
    +
    +static void atl1e_del_timer(struct atl1e_adapter *adapter)
    +{
    + del_timer_sync(&adapter->phy_config_timer);
    +}
    +
    +static void atl1e_cancel_work(struct atl1e_adapter *adapter)
    +{
    + cancel_work_sync(&adapter->reset_task);
    + cancel_work_sync(&adapter->link_chg_task);
    +}
    +
    +/*
    + * atl1e_tx_timeout - Respond to a Tx Hang
    + * @netdev: network interface device structure
    + */
    +static void atl1e_tx_timeout(struct net_device *netdev)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    +
    + /* Do the reset outside of interrupt context */
    + schedule_work(&adapter->reset_task);
    +}
    +
    +/*
    + * atl1e_set_multi - Multicast and Promiscuous mode set
    + * @netdev: network interface device structure
    + *
    + * The set_multi entry point is called whenever the multicast address
    + * list or the network interface flags are updated. This routine is
    + * responsible for configuring the hardware for proper multicast,
    + * promiscuous mode, and all-multi behavior.
    + */
    +static void atl1e_set_multi(struct net_device *netdev)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct atl1e_hw *hw = &adapter->hw;
    + struct dev_mc_list *mc_ptr;
    + u32 mac_ctrl_data = 0;
    + u32 hash_value;
    +
    + /* Check for Promiscuous and All Multicast modes */
    + mac_ctrl_data = AT_READ_REG(hw, REG_MAC_CTRL);
    +
    + if (netdev->flags & IFF_PROMISC) {
    + mac_ctrl_data |= MAC_CTRL_PROMIS_EN;
    + } else if (netdev->flags & IFF_ALLMULTI) {
    + mac_ctrl_data |= MAC_CTRL_MC_ALL_EN;
    + mac_ctrl_data &= ~MAC_CTRL_PROMIS_EN;
    + } else {
    + mac_ctrl_data &= ~(MAC_CTRL_PROMIS_EN | MAC_CTRL_MC_ALL_EN);
    + }
    +
    + AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl_data);
    +
    + /* clear the old settings from the multicast hash table */
    + AT_WRITE_REG(hw, REG_RX_HASH_TABLE, 0);
    + AT_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, 1, 0);
    +
    + /* comoute mc addresses' hash value ,and put it into hash table */
    + for (mc_ptr = netdev->mc_list; mc_ptr; mc_ptr = mc_ptr->next) {
    + hash_value = atl1e_hash_mc_addr(hw, mc_ptr->dmi_addr);
    + atl1e_hash_set(hw, hash_value);
    + }
    +}
    +
    +static void atl1e_vlan_rx_register(struct net_device *netdev,
    + struct vlan_group *grp)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct pci_dev *pdev = adapter->pdev;
    + u32 mac_ctrl_data = 0;
    +
    + dev_dbg(&pdev->dev, "atl1e_vlan_rx_register\n");
    +
    + atl1e_irq_disable(adapter);
    +
    + adapter->vlgrp = grp;
    + mac_ctrl_data = AT_READ_REG(&adapter->hw, REG_MAC_CTRL);
    +
    + if (grp) {
    + /* enable VLAN tag insert/strip */
    + mac_ctrl_data |= MAC_CTRL_RMV_VLAN;
    + } else {
    + /* disable VLAN tag insert/strip */
    + mac_ctrl_data &= ~MAC_CTRL_RMV_VLAN;
    + }
    +
    + AT_WRITE_REG(&adapter->hw, REG_MAC_CTRL, mac_ctrl_data);
    + atl1e_irq_enable(adapter);
    +}
    +
    +static void atl1e_restore_vlan(struct atl1e_adapter *adapter)
    +{
    + struct pci_dev *pdev = adapter->pdev;
    +
    + dev_dbg(&pdev->dev, "atl1e_restore_vlan !");
    + atl1e_vlan_rx_register(adapter->netdev, adapter->vlgrp);
    +}
    +/*
    + * atl1e_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 atl1e_set_mac_addr(struct net_device *netdev, void *p)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct sockaddr *addr = p;
    +
    + if (!is_valid_ether_addr(addr->sa_data))
    + return -EADDRNOTAVAIL;
    +
    + if (netif_running(netdev))
    + return -EBUSY;
    +
    + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
    + memcpy(adapter->hw.mac_addr, addr->sa_data, netdev->addr_len);
    +
    + atl1e_hw_set_mac_addr(&adapter->hw);
    +
    + return 0;
    +}
    +
    +/*
    + * atl1e_change_mtu - Change the Maximum Transfer Unit
    + * @netdev: network interface device structure
    + * @new_mtu: new value for maximum frame size
    + *
    + * Returns 0 on success, negative on failure
    + */
    +static int atl1e_change_mtu(struct net_device *netdev, int new_mtu)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + int old_mtu = netdev->mtu;
    + int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
    +
    + if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) ||
    + (max_frame > MAX_JUMBO_FRAME_SIZE)) {
    + dev_warn(&adapter->pdev->dev, "invalid MTU setting\n");
    + return -EINVAL;
    + }
    + /* set MTU */
    + if (old_mtu != new_mtu && netif_running(netdev)) {
    + while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
    + msleep(1);
    + netdev->mtu = new_mtu;
    + adapter->hw.max_frame_size = new_mtu;
    + adapter->hw.rx_jumbo_th = (max_frame + 7) >> 3;
    + atl1e_down(adapter);
    + atl1e_up(adapter);
    + clear_bit(__AT_RESETTING, &adapter->flags);
    + }
    + return 0;
    +}
    +
    +/*
    + * caller should hold mdio_lock
    + */
    +static int atl1e_mdio_read(struct net_device *netdev, int phy_id, int reg_num)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + u16 result;
    +
    + atl1e_read_phy_reg(&adapter->hw, reg_num & MDIO_REG_ADDR_MASK, &result);
    + return result;
    +}
    +
    +static void atl1e_mdio_write(struct net_device *netdev, int phy_id,
    + int reg_num, int val)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    +
    + atl1e_write_phy_reg(&adapter->hw, reg_num & MDIO_REG_ADDR_MASK, val);
    +}
    +
    +/*
    + * atl1e_mii_ioctl -
    + * @netdev:
    + * @ifreq:
    + * @cmd:
    + */
    +static int atl1e_mii_ioctl(struct net_device *netdev,
    + struct ifreq *ifr, int cmd)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct pci_dev *pdev = adapter->pdev;
    + struct mii_ioctl_data *data = if_mii(ifr);
    + unsigned long flags;
    + int retval = 0;
    +
    + if (!netif_running(netdev))
    + return -EINVAL;
    +
    + spin_lock_irqsave(&adapter->mdio_lock, flags);
    + switch (cmd) {
    + case SIOCGMIIPHY:
    + data->phy_id = 0;
    + break;
    +
    + case SIOCGMIIREG:
    + if (!capable(CAP_NET_ADMIN)) {
    + retval = -EPERM;
    + goto out;
    + }
    + if (atl1e_read_phy_reg(&adapter->hw, data->reg_num & 0x1F,
    + &data->val_out)) {
    + retval = -EIO;
    + goto out;
    + }
    + break;
    +
    + case SIOCSMIIREG:
    + if (!capable(CAP_NET_ADMIN)) {
    + retval = -EPERM;
    + goto out;
    + }
    + if (data->reg_num & ~(0x1F)) {
    + retval = -EFAULT;
    + goto out;
    + }
    +
    + dev_dbg(&pdev->dev, " write %x %x",
    + data->reg_num, data->val_in);
    + if (atl1e_write_phy_reg(&adapter->hw,
    + data->reg_num, data->val_in)) {
    + retval = -EIO;
    + goto out;
    + }
    + break;
    +
    + default:
    + retval = -EOPNOTSUPP;
    + break;
    + }
    +out:
    + spin_unlock_irqrestore(&adapter->mdio_lock, flags);
    + return retval;
    +
    +}
    +
    +/*
    + * atl1e_ioctl -
    + * @netdev:
    + * @ifreq:
    + * @cmd:
    + */
    +static int atl1e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
    +{
    + switch (cmd) {
    + case SIOCGMIIPHY:
    + case SIOCGMIIREG:
    + case SIOCSMIIREG:
    + return atl1e_mii_ioctl(netdev, ifr, cmd);
    + default:
    + return -EOPNOTSUPP;
    + }
    +}
    +
    +static void atl1e_setup_pcicmd(struct pci_dev *pdev)
    +{
    + u16 cmd;
    +
    + pci_read_config_word(pdev, PCI_COMMAND, &cmd);
    + cmd &= ~(PCI_COMMAND_INTX_DISABLE | PCI_COMMAND_IO);
    + cmd |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
    + pci_write_config_word(pdev, PCI_COMMAND, cmd);
    +
    + /*
    + * some motherboards BIOS(PXE/EFI) driver may set PME
    + * while they transfer control to OS (Windows/Linux)
    + * so we should clear this bit before NIC work normally
    + */
    + pci_write_config_dword(pdev, REG_PM_CTRLSTAT, 0);
    + msleep(1);
    +}
    +
    +/*
    + * atl1e_alloc_queues - Allocate memory for all rings
    + * @adapter: board private structure to initialize
    + *
    + */
    +static int __devinit atl1e_alloc_queues(struct atl1e_adapter *adapter)
    +{
    + return 0;
    +}
    +
    +/*
    + * atl1e_sw_init - Initialize general software structures (struct atl1e_adapter)
    + * @adapter: board private structure to initialize
    + *
    + * atl1e_sw_init initializes the Adapter private data structure.
    + * Fields are initialized based on PCI device information and
    + * OS network device settings (MTU size).
    + */
    +static int __devinit atl1e_sw_init(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_hw *hw = &adapter->hw;
    + struct pci_dev *pdev = adapter->pdev;
    + u32 phy_status_data = 0;
    +
    + adapter->wol = 0;
    + adapter->link_speed = SPEED_0; /* hardware init */
    + adapter->link_duplex = FULL_DUPLEX;
    + adapter->num_rx_queues = 1;
    +
    + /* PCI config space info */
    + hw->vendor_id = pdev->vendor;
    + hw->device_id = pdev->device;
    + hw->subsystem_vendor_id = pdev->subsystem_vendor;
    + hw->subsystem_id = pdev->subsystem_device;
    +
    + pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
    + pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
    +
    + phy_status_data = AT_READ_REG(hw, REG_PHY_STATUS);
    + /* nic type */
    + if (hw->revision_id >= 0xF0) {
    + hw->nic_type = athr_l2e_revB;
    + } else {
    + if (phy_status_data & PHY_STATUS_100M)
    + hw->nic_type = athr_l1e;
    + else
    + hw->nic_type = athr_l2e_revA;
    + }
    +
    + phy_status_data = AT_READ_REG(hw, REG_PHY_STATUS);
    +
    + if (phy_status_data & PHY_STATUS_EMI_CA)
    + hw->emi_ca = true;
    + else
    + hw->emi_ca = false;
    +
    + hw->phy_configured = false;
    + hw->preamble_len = 7;
    + hw->max_frame_size = adapter->netdev->mtu;
    + hw->rx_jumbo_th = (hw->max_frame_size + ETH_HLEN +
    + VLAN_HLEN + ETH_FCS_LEN + 7) >> 3;
    +
    + hw->rrs_type = atl1e_rrs_disable;
    + hw->indirect_tab = 0;
    + hw->base_cpu = 0;
    +
    + /* need confirm */
    +
    + hw->ict = 50000; /* 100ms */
    + hw->smb_timer = 200000; /* 200ms */
    + hw->tpd_burst = 5;
    + hw->rrd_thresh = 1;
    + hw->tpd_thresh = adapter->tx_ring.count / 2;
    + hw->rx_count_down = 4; /* 2us resolution */
    + hw->tx_count_down = hw->imt * 4 / 3;
    + hw->dmar_block = atl1e_dma_req_1024;
    + hw->dmaw_block = atl1e_dma_req_1024;
    + hw->dmar_dly_cnt = 15;
    + hw->dmaw_dly_cnt = 4;
    +
    + if (atl1e_alloc_queues(adapter)) {
    + dev_err(&pdev->dev, "Unable to allocate memory for queues\n");
    + return -ENOMEM;
    + }
    +
    + atomic_set(&adapter->irq_sem, 1);
    + spin_lock_init(&adapter->mdio_lock);
    + spin_lock_init(&adapter->tx_lock);
    +
    + set_bit(__AT_DOWN, &adapter->flags);
    +
    + return 0;
    +}
    +
    +/*
    + * atl1e_clean_tx_ring - Free Tx-skb
    + * @adapter: board private structure
    + */
    +static void atl1e_clean_tx_ring(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_tx_ring *tx_ring = (struct atl1e_tx_ring *)
    + &adapter->tx_ring;
    + struct atl1e_tx_buffer *tx_buffer = NULL;
    + struct pci_dev *pdev = adapter->pdev;
    + u16 index, ring_count;
    +
    + if (tx_ring->desc == NULL || tx_ring->tx_buffer == NULL)
    + return;
    +
    + ring_count = tx_ring->count;
    + /* first unmmap dma */
    + for (index = 0; index < ring_count; index++) {
    + tx_buffer = &tx_ring->tx_buffer[index];
    + if (tx_buffer->dma) {
    + pci_unmap_page(pdev, tx_buffer->dma,
    + tx_buffer->length, PCI_DMA_TODEVICE);
    + tx_buffer->dma = 0;
    + }
    + }
    + /* second free skb */
    + for (index = 0; index < ring_count; index++) {
    + tx_buffer = &tx_ring->tx_buffer[index];
    + if (tx_buffer->skb) {
    + dev_kfree_skb_any(tx_buffer->skb);
    + tx_buffer->skb = NULL;
    + }
    + }
    + /* Zero out Tx-buffers */
    + memset(tx_ring->desc, 0, sizeof(struct atl1e_tpd_desc) *
    + ring_count);
    + memset(tx_ring->tx_buffer, 0, sizeof(struct atl1e_tx_buffer) *
    + ring_count);
    +}
    +
    +/*
    + * atl1e_clean_rx_ring - Free rx-reservation skbs
    + * @adapter: board private structure
    + */
    +static void atl1e_clean_rx_ring(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_rx_ring *rx_ring =
    + (struct atl1e_rx_ring *)&adapter->rx_ring;
    + struct atl1e_rx_page_desc *rx_page_desc = rx_ring->rx_page_desc;
    + u16 i, j;
    +
    +
    + if (adapter->ring_vir_addr == NULL)
    + return;
    + /* Zero out the descriptor ring */
    + for (i = 0; i < adapter->num_rx_queues; i++) {
    + for (j = 0; j < AT_PAGE_NUM_PER_QUEUE; j++) {
    + if (rx_page_desc[i].rx_page[j].addr != NULL) {
    + memset(rx_page_desc[i].rx_page[j].addr, 0,
    + rx_ring->real_page_size);
    + }
    + }
    + }
    +}
    +
    +static void atl1e_cal_ring_size(struct atl1e_adapter *adapter, u32 *ring_size)
    +{
    + *ring_size = ((u32)(adapter->tx_ring.count *
    + sizeof(struct atl1e_tpd_desc) + 7
    + /* tx ring, qword align */
    + + adapter->rx_ring.real_page_size * AT_PAGE_NUM_PER_QUEUE *
    + adapter->num_rx_queues + 31
    + /* rx ring, 32 bytes align */
    + + (1 + AT_PAGE_NUM_PER_QUEUE * adapter->num_rx_queues) *
    + sizeof(u32) + 3));
    + /* tx, rx cmd, dword align */
    +}
    +
    +static void atl1e_init_ring_resources(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_tx_ring *tx_ring = NULL;
    + struct atl1e_rx_ring *rx_ring = NULL;
    +
    + tx_ring = &adapter->tx_ring;
    + rx_ring = &adapter->rx_ring;
    +
    + rx_ring->real_page_size = adapter->rx_ring.page_size
    + + adapter->hw.max_frame_size
    + + ETH_HLEN + VLAN_HLEN
    + + ETH_FCS_LEN;
    + rx_ring->real_page_size = roundup(rx_ring->real_page_size, 32);
    + atl1e_cal_ring_size(adapter, &adapter->ring_size);
    +
    + adapter->ring_vir_addr = NULL;
    + adapter->rx_ring.desc = NULL;
    + rwlock_init(&adapter->tx_ring.tx_lock);
    +
    + return;
    +}
    +
    +/*
    + * Read / Write Ptr Initialize:
    + */
    +static void atl1e_init_ring_ptrs(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_tx_ring *tx_ring = NULL;
    + struct atl1e_rx_ring *rx_ring = NULL;
    + struct atl1e_rx_page_desc *rx_page_desc = NULL;
    + int i, j;
    +
    + tx_ring = &adapter->tx_ring;
    + rx_ring = &adapter->rx_ring;
    + rx_page_desc = rx_ring->rx_page_desc;
    +
    + tx_ring->next_to_use = 0;
    + atomic_set(&tx_ring->next_to_clean, 0);
    +
    + for (i = 0; i < adapter->num_rx_queues; i++) {
    + rx_page_desc[i].rx_using = 0;
    + rx_page_desc[i].rx_nxseq = 0;
    + for (j = 0; j < AT_PAGE_NUM_PER_QUEUE; j++) {
    + *rx_page_desc[i].rx_page[j].write_offset_addr = 0;
    + rx_page_desc[i].rx_page[j].read_offset = 0;
    + }
    + }
    +}
    +
    +/*
    + * atl1e_free_ring_resources - Free Tx / RX descriptor Resources
    + * @adapter: board private structure
    + *
    + * Free all transmit software resources
    + */
    +static void atl1e_free_ring_resources(struct atl1e_adapter *adapter)
    +{
    + struct pci_dev *pdev = adapter->pdev;
    +
    + atl1e_clean_tx_ring(adapter);
    + atl1e_clean_rx_ring(adapter);
    +
    + if (adapter->ring_vir_addr) {
    + pci_free_consistent(pdev, adapter->ring_size,
    + adapter->ring_vir_addr, adapter->ring_dma);
    + adapter->ring_vir_addr = NULL;
    + }
    +
    + if (adapter->tx_ring.tx_buffer) {
    + kfree(adapter->tx_ring.tx_buffer);
    + adapter->tx_ring.tx_buffer = NULL;
    + }
    +}
    +
    +/*
    + * atl1e_setup_mem_resources - allocate Tx / RX descriptor resources
    + * @adapter: board private structure
    + *
    + * Return 0 on success, negative on failure
    + */
    +static int atl1e_setup_ring_resources(struct atl1e_adapter *adapter)
    +{
    + struct pci_dev *pdev = adapter->pdev;
    + struct atl1e_tx_ring *tx_ring;
    + struct atl1e_rx_ring *rx_ring;
    + struct atl1e_rx_page_desc *rx_page_desc;
    + int size, i, j;
    + u32 offset = 0;
    + int err = 0;
    +
    + if (adapter->ring_vir_addr != NULL)
    + return 0; /* alloced already */
    +
    + tx_ring = &adapter->tx_ring;
    + rx_ring = &adapter->rx_ring;
    +
    + /* real ring DMA buffer */
    +
    + size = adapter->ring_size;
    + adapter->ring_vir_addr = pci_alloc_consistent(pdev,
    + adapter->ring_size, &adapter->ring_dma);
    +
    + if (adapter->ring_vir_addr == NULL) {
    + dev_err(&pdev->dev, "pci_alloc_consistent failed, "
    + "size = D%d", size);
    + return -ENOMEM;
    + }
    +
    + memset(adapter->ring_vir_addr, 0, adapter->ring_size);
    +
    + rx_page_desc = rx_ring->rx_page_desc;
    +
    + /* Init TPD Ring */
    + tx_ring->dma = roundup(adapter->ring_dma, 8);
    + offset = tx_ring->dma - adapter->ring_dma;
    + tx_ring->desc = (struct atl1e_tpd_desc *)
    + (adapter->ring_vir_addr + offset);
    + size = sizeof(struct atl1e_tx_buffer) * (tx_ring->count);
    + tx_ring->tx_buffer = kzalloc(size, GFP_KERNEL);
    + if (tx_ring->tx_buffer == NULL) {
    + dev_err(&pdev->dev, "kzalloc failed , size = D%d", size);
    + err = -ENOMEM;
    + goto failed;
    + }
    +
    + /* Init RXF-Pages */
    + offset += (sizeof(struct atl1e_tpd_desc) * tx_ring->count);
    + offset = roundup(offset, 32);
    +
    + for (i = 0; i < adapter->num_rx_queues; i++) {
    + for (j = 0; j < AT_PAGE_NUM_PER_QUEUE; j++) {
    + rx_page_desc[i].rx_page[j].dma =
    + adapter->ring_dma + offset;
    + rx_page_desc[i].rx_page[j].addr =
    + adapter->ring_vir_addr + offset;
    + offset += rx_ring->real_page_size;
    + }
    + }
    +
    + /* Init CMB dma address */
    + tx_ring->cmb_dma = adapter->ring_dma + offset;
    + tx_ring->cmb = (u32 *)(adapter->ring_vir_addr + offset);
    + offset += sizeof(u32);
    +
    + for (i = 0; i < adapter->num_rx_queues; i++) {
    + for (j = 0; j < AT_PAGE_NUM_PER_QUEUE; j++) {
    + rx_page_desc[i].rx_page[j].write_offset_dma =
    + adapter->ring_dma + offset;
    + rx_page_desc[i].rx_page[j].write_offset_addr =
    + adapter->ring_vir_addr + offset;
    + offset += sizeof(u32);
    + }
    + }
    +
    + if (unlikely(offset > adapter->ring_size)) {
    + dev_err(&pdev->dev, "offset(%d) > ring size(%d) !!\n",
    + offset, adapter->ring_size);
    + err = -1;
    + goto failed;
    + }
    +
    + return 0;
    +failed:
    + if (adapter->ring_vir_addr != NULL) {
    + pci_free_consistent(pdev, adapter->ring_size,
    + adapter->ring_vir_addr, adapter->ring_dma);
    + adapter->ring_vir_addr = NULL;
    + }
    + return err;
    +}
    +
    +static inline void atl1e_configure_des_ring(const struct atl1e_adapter *adapter)
    +{
    +
    + struct atl1e_hw *hw = (struct atl1e_hw *)&adapter->hw;
    + struct atl1e_rx_ring *rx_ring =
    + (struct atl1e_rx_ring *)&adapter->rx_ring;
    + struct atl1e_tx_ring *tx_ring =
    + (struct atl1e_tx_ring *)&adapter->tx_ring;
    + struct atl1e_rx_page_desc *rx_page_desc = NULL;
    + int i, j;
    +
    + AT_WRITE_REG(hw, REG_DESC_BASE_ADDR_HI,
    + (u32)((adapter->ring_dma & AT_DMA_HI_ADDR_MASK) >> 32));
    + AT_WRITE_REG(hw, REG_TPD_BASE_ADDR_LO,
    + (u32)((tx_ring->dma) & AT_DMA_LO_ADDR_MASK));
    + AT_WRITE_REG(hw, REG_TPD_RING_SIZE, (u16)(tx_ring->count));
    + AT_WRITE_REG(hw, REG_HOST_TX_CMB_LO,
    + (u32)((tx_ring->cmb_dma) & AT_DMA_LO_ADDR_MASK));
    +
    + rx_page_desc = rx_ring->rx_page_desc;
    + /* RXF Page Physical address / Page Length */
    + for (i = 0; i < AT_MAX_RECEIVE_QUEUE; i++) {
    + AT_WRITE_REG(hw, atl1e_rx_page_hi_addr_regs[i],
    + (u32)((adapter->ring_dma &
    + AT_DMA_HI_ADDR_MASK) >> 32));
    + for (j = 0; j < AT_PAGE_NUM_PER_QUEUE; j++) {
    + u32 page_phy_addr;
    + u32 offset_phy_addr;
    +
    + page_phy_addr = rx_page_desc[i].rx_page[j].dma;
    + offset_phy_addr =
    + rx_page_desc[i].rx_page[j].write_offset_dma;
    +
    + AT_WRITE_REG(hw, atl1e_rx_page_lo_addr_regs[i][j],
    + page_phy_addr & AT_DMA_LO_ADDR_MASK);
    + AT_WRITE_REG(hw, atl1e_rx_page_write_offset_regs[i][j],
    + offset_phy_addr & AT_DMA_LO_ADDR_MASK);
    + AT_WRITE_REGB(hw, atl1e_rx_page_vld_regs[i][j], 1);
    + }
    + }
    + /* Page Length */
    + AT_WRITE_REG(hw, REG_HOST_RXFPAGE_SIZE, rx_ring->page_size);
    + /* Load all of base address above */
    + AT_WRITE_REG(hw, REG_LOAD_PTR, 1);
    +
    + return;
    +}
    +
    +static inline void atl1e_configure_tx(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_hw *hw = (struct atl1e_hw *)&adapter->hw;
    + u32 dev_ctrl_data = 0;
    + u32 max_pay_load = 0;
    + u32 jumbo_thresh = 0;
    + u32 extra_size = 0; /* Jumbo frame threshold in QWORD unit */
    +
    + /* configure TXQ param */
    + if (hw->nic_type != athr_l2e_revB) {
    + extra_size = ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN;
    + if (hw->max_frame_size <= 1500) {
    + jumbo_thresh = hw->max_frame_size + extra_size;
    + } else if (hw->max_frame_size < 6*1024) {
    + jumbo_thresh =
    + (hw->max_frame_size + extra_size) * 2 / 3;
    + } else {
    + jumbo_thresh = (hw->max_frame_size + extra_size) / 2;
    + }
    + AT_WRITE_REG(hw, REG_TX_EARLY_TH, (jumbo_thresh + 7) >> 3);
    + }
    +
    + dev_ctrl_data = AT_READ_REG(hw, REG_DEVICE_CTRL);
    +
    + max_pay_load = ((dev_ctrl_data >> DEVICE_CTRL_MAX_PAYLOAD_SHIFT)) &
    + DEVICE_CTRL_MAX_PAYLOAD_MASK;
    +
    + hw->dmaw_block = min(max_pay_load, hw->dmaw_block);
    +
    + max_pay_load = ((dev_ctrl_data >> DEVICE_CTRL_MAX_RREQ_SZ_SHIFT)) &
    + DEVICE_CTRL_MAX_RREQ_SZ_MASK;
    + hw->dmar_block = min(max_pay_load, hw->dmar_block);
    +
    + if (hw->nic_type != athr_l2e_revB)
    + AT_WRITE_REGW(hw, REG_TXQ_CTRL + 2,
    + atl1e_pay_load_size[hw->dmar_block]);
    + /* enable TXQ */
    + AT_WRITE_REGW(hw, REG_TXQ_CTRL,
    + (((u16)hw->tpd_burst & TXQ_CTRL_NUM_TPD_BURST_MASK)
    + << TXQ_CTRL_NUM_TPD_BURST_SHIFT)
    + | TXQ_CTRL_ENH_MODE | TXQ_CTRL_EN);
    + return;
    +}
    +
    +static inline void atl1e_configure_rx(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_hw *hw = (struct atl1e_hw *)&adapter->hw;
    + u32 rxf_len = 0;
    + u32 rxf_low = 0;
    + u32 rxf_high = 0;
    + u32 rxf_thresh_data = 0;
    + u32 rxq_ctrl_data = 0;
    +
    + if (hw->nic_type != athr_l2e_revB) {
    + AT_WRITE_REGW(hw, REG_RXQ_JMBOSZ_RRDTIM,
    + (u16)((hw->rx_jumbo_th & RXQ_JMBOSZ_TH_MASK) <<
    + RXQ_JMBOSZ_TH_SHIFT |
    + (1 & RXQ_JMBO_LKAH_MASK) <<
    + RXQ_JMBO_LKAH_SHIFT));
    +
    + rxf_len = AT_READ_REG(hw, REG_SRAM_RXF_LEN);
    + rxf_high = rxf_len * 4 / 5;
    + rxf_low = rxf_len / 5;
    + rxf_thresh_data = ((rxf_high & RXQ_RXF_PAUSE_TH_HI_MASK)
    + << RXQ_RXF_PAUSE_TH_HI_SHIFT) |
    + ((rxf_low & RXQ_RXF_PAUSE_TH_LO_MASK)
    + << RXQ_RXF_PAUSE_TH_LO_SHIFT);
    +
    + AT_WRITE_REG(hw, REG_RXQ_RXF_PAUSE_THRESH, rxf_thresh_data);
    + }
    +
    + /* RRS */
    + AT_WRITE_REG(hw, REG_IDT_TABLE, hw->indirect_tab);
    + AT_WRITE_REG(hw, REG_BASE_CPU_NUMBER, hw->base_cpu);
    +
    + if (hw->rrs_type & atl1e_rrs_ipv4)
    + rxq_ctrl_data |= RXQ_CTRL_HASH_TYPE_IPV4;
    +
    + if (hw->rrs_type & atl1e_rrs_ipv4_tcp)
    + rxq_ctrl_data |= RXQ_CTRL_HASH_TYPE_IPV4_TCP;
    +
    + if (hw->rrs_type & atl1e_rrs_ipv6)
    + rxq_ctrl_data |= RXQ_CTRL_HASH_TYPE_IPV6;
    +
    + if (hw->rrs_type & atl1e_rrs_ipv6_tcp)
    + rxq_ctrl_data |= RXQ_CTRL_HASH_TYPE_IPV6_TCP;
    +
    + if (hw->rrs_type != atl1e_rrs_disable)
    + rxq_ctrl_data |=
    + (RXQ_CTRL_HASH_ENABLE | RXQ_CTRL_RSS_MODE_MQUESINT);
    +
    + rxq_ctrl_data |= RXQ_CTRL_IPV6_XSUM_VERIFY_EN | RXQ_CTRL_PBA_ALIGN_32 |
    + RXQ_CTRL_CUT_THRU_EN | RXQ_CTRL_EN;
    +
    + AT_WRITE_REG(hw, REG_RXQ_CTRL, rxq_ctrl_data);
    + return;
    +}
    +
    +static inline void atl1e_configure_dma(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_hw *hw = &adapter->hw;
    + u32 dma_ctrl_data = 0;
    +
    + dma_ctrl_data = DMA_CTRL_RXCMB_EN;
    + dma_ctrl_data |= (((u32)hw->dmar_block) & DMA_CTRL_DMAR_BURST_LEN_MASK)
    + << DMA_CTRL_DMAR_BURST_LEN_SHIFT;
    + dma_ctrl_data |= (((u32)hw->dmaw_block) & DMA_CTRL_DMAW_BURST_LEN_MASK)
    + << DMA_CTRL_DMAW_BURST_LEN_SHIFT;
    + dma_ctrl_data |= DMA_CTRL_DMAR_REQ_PRI | DMA_CTRL_DMAR_OUT_ORDER;
    + dma_ctrl_data |= (((u32)hw->dmar_dly_cnt) & DMA_CTRL_DMAR_DLY_CNT_MASK)
    + << DMA_CTRL_DMAR_DLY_CNT_SHIFT;
    + dma_ctrl_data |= (((u32)hw->dmaw_dly_cnt) & DMA_CTRL_DMAW_DLY_CNT_MASK)
    + << DMA_CTRL_DMAW_DLY_CNT_SHIFT;
    +
    + AT_WRITE_REG(hw, REG_DMA_CTRL, dma_ctrl_data);
    + return;
    +}
    +
    +static inline void atl1e_setup_mac_ctrl(struct atl1e_adapter *adapter)
    +{
    + u32 value;
    + struct atl1e_hw *hw = &adapter->hw;
    + struct net_device *netdev = adapter->netdev;
    +
    + /* Config MAC CTRL Register */
    + value = MAC_CTRL_TX_EN |
    + MAC_CTRL_RX_EN ;
    +
    + if (FULL_DUPLEX == adapter->link_duplex)
    + value |= MAC_CTRL_DUPLX;
    +
    + value |= ((u32)((SPEED_1000 == adapter->link_speed) ?
    + MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100) <<
    + MAC_CTRL_SPEED_SHIFT);
    + value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW);
    +
    + value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
    + value |= (((u32)adapter->hw.preamble_len &
    + MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
    +
    + if (adapter->vlgrp)
    + value |= MAC_CTRL_RMV_VLAN;
    +
    + value |= MAC_CTRL_BC_EN;
    + if (netdev->flags & IFF_PROMISC)
    + value |= MAC_CTRL_PROMIS_EN;
    + if (netdev->flags & IFF_ALLMULTI)
    + value |= MAC_CTRL_MC_ALL_EN;
    +
    + AT_WRITE_REG(hw, REG_MAC_CTRL, value);
    +}
    +
    +/*
    + * atl1e_configure - Configure Transmit&Receive Unit after Reset
    + * @adapter: board private structure
    + *
    + * Configure the Tx /Rx unit of the MAC after a reset.
    + */
    +static int atl1e_configure(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_hw *hw = &adapter->hw;
    + struct pci_dev *pdev = adapter->pdev;
    +
    + u32 intr_status_data = 0;
    +
    + /* clear interrupt status */
    + AT_WRITE_REG(hw, REG_ISR, ~0);
    +
    + /* 1. set MAC Address */
    + atl1e_hw_set_mac_addr(hw);
    +
    + /* 2. Init the Multicast HASH table done by set_muti */
    +
    + /* 3. Clear any WOL status */
    + AT_WRITE_REG(hw, REG_WOL_CTRL, 0);
    +
    + /* 4. Descripter Ring BaseMem/Length/Read ptr/Write ptr
    + * TPD Ring/SMB/RXF0 Page CMBs, they use the same
    + * High 32bits memory */
    + atl1e_configure_des_ring(adapter);
    +
    + /* 5. set Interrupt Moderator Timer */
    + AT_WRITE_REGW(hw, REG_IRQ_MODU_TIMER_INIT, hw->imt);
    + AT_WRITE_REGW(hw, REG_IRQ_MODU_TIMER2_INIT, hw->imt);
    + AT_WRITE_REG(hw, REG_MASTER_CTRL, MASTER_CTRL_LED_MODE |
    + MASTER_CTRL_ITIMER_EN | MASTER_CTRL_ITIMER2_EN);
    +
    + /* 6. rx/tx threshold to trig interrupt */
    + AT_WRITE_REGW(hw, REG_TRIG_RRD_THRESH, hw->rrd_thresh);
    + AT_WRITE_REGW(hw, REG_TRIG_TPD_THRESH, hw->tpd_thresh);
    + AT_WRITE_REGW(hw, REG_TRIG_RXTIMER, hw->rx_count_down);
    + AT_WRITE_REGW(hw, REG_TRIG_TXTIMER, hw->tx_count_down);
    +
    + /* 7. set Interrupt Clear Timer */
    + AT_WRITE_REGW(hw, REG_CMBDISDMA_TIMER, hw->ict);
    +
    + /* 8. set MTU */
    + AT_WRITE_REG(hw, REG_MTU, hw->max_frame_size + ETH_HLEN +
    + VLAN_HLEN + ETH_FCS_LEN);
    +
    + /* 9. config TXQ early tx threshold */
    + atl1e_configure_tx(adapter);
    +
    + /* 10. config RXQ */
    + atl1e_configure_rx(adapter);
    +
    + /* 11. config DMA Engine */
    + atl1e_configure_dma(adapter);
    +
    + /* 12. smb timer to trig interrupt */
    + AT_WRITE_REG(hw, REG_SMB_STAT_TIMER, hw->smb_timer);
    +
    + intr_status_data = AT_READ_REG(hw, REG_ISR);
    + if (unlikely((intr_status_data & ISR_PHY_LINKDOWN) != 0)) {
    + dev_err(&pdev->dev, "atl1e_configure failed,"
    + "PCIE phy link down\n");
    + return -1;
    + }
    +
    + AT_WRITE_REG(hw, REG_ISR, 0x7fffffff);
    + return 0;
    +}
    +
    +/*
    + * atl1e_get_stats - Get System Network Statistics
    + * @netdev: network interface device structure
    + *
    + * Returns the address of the device statistics structure.
    + * The statistics are actually updated from the timer callback.
    + */
    +static struct net_device_stats *atl1e_get_stats(struct net_device *netdev)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct atl1e_hw_stats *hw_stats = &adapter->hw_stats;
    + struct net_device_stats *net_stats = &adapter->net_stats;
    +
    + net_stats->rx_packets = hw_stats->rx_ok;
    + net_stats->tx_packets = hw_stats->tx_ok;
    + net_stats->rx_bytes = hw_stats->rx_byte_cnt;
    + net_stats->tx_bytes = hw_stats->tx_byte_cnt;
    + net_stats->multicast = hw_stats->rx_mcast;
    + net_stats->collisions = hw_stats->tx_1_col +
    + hw_stats->tx_2_col * 2 +
    + hw_stats->tx_late_col + hw_stats->tx_abort_col;
    +
    + net_stats->rx_errors = hw_stats->rx_frag + hw_stats->rx_fcs_err +
    + hw_stats->rx_len_err + hw_stats->rx_sz_ov +
    + hw_stats->rx_rrd_ov + hw_stats->rx_align_err;
    + net_stats->rx_fifo_errors = hw_stats->rx_rxf_ov;
    + net_stats->rx_length_errors = hw_stats->rx_len_err;
    + net_stats->rx_crc_errors = hw_stats->rx_fcs_err;
    + net_stats->rx_frame_errors = hw_stats->rx_align_err;
    + net_stats->rx_over_errors = hw_stats->rx_rrd_ov + hw_stats->rx_rxf_ov;
    +
    + net_stats->rx_missed_errors = hw_stats->rx_rrd_ov + hw_stats->rx_rxf_ov;
    +
    + net_stats->tx_errors = hw_stats->tx_late_col + hw_stats->tx_abort_col +
    + hw_stats->tx_underrun + hw_stats->tx_trunc;
    + net_stats->tx_fifo_errors = hw_stats->tx_underrun;
    + net_stats->tx_aborted_errors = hw_stats->tx_abort_col;
    + net_stats->tx_window_errors = hw_stats->tx_late_col;
    +
    + return &adapter->net_stats;
    +}
    +
    +static void atl1e_update_hw_stats(struct atl1e_adapter *adapter)
    +{
    + u16 hw_reg_addr = 0;
    + unsigned long *stats_item = NULL;
    +
    + /* update rx status */
    + hw_reg_addr = REG_MAC_RX_STATUS_BIN;
    + stats_item = &adapter->hw_stats.rx_ok;
    + while (hw_reg_addr <= REG_MAC_RX_STATUS_END) {
    + *stats_item += AT_READ_REG(&adapter->hw, hw_reg_addr);
    + stats_item++;
    + hw_reg_addr += 4;
    + }
    + /* update tx status */
    + hw_reg_addr = REG_MAC_TX_STATUS_BIN;
    + stats_item = &adapter->hw_stats.tx_ok;
    + while (hw_reg_addr <= REG_MAC_TX_STATUS_END) {
    + *stats_item += AT_READ_REG(&adapter->hw, hw_reg_addr);
    + stats_item++;
    + hw_reg_addr += 4;
    + }
    +}
    +
    +static inline void atl1e_clear_phy_int(struct atl1e_adapter *adapter)
    +{
    + u16 phy_data;
    +
    + spin_lock(&adapter->mdio_lock);
    + atl1e_read_phy_reg(&adapter->hw, MII_INT_STATUS, &phy_data);
    + spin_unlock(&adapter->mdio_lock);
    +}
    +
    +static bool atl1e_clean_tx_irq(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_tx_ring *tx_ring = (struct atl1e_tx_ring *)
    + &adapter->tx_ring;
    + struct atl1e_tx_buffer *tx_buffer = NULL;
    + u16 hw_next_to_clean = AT_READ_REGW(&adapter->hw, REG_TPD_CONS_IDX);
    + u16 next_to_clean = atomic_read(&tx_ring->next_to_clean);
    +
    + while (next_to_clean != hw_next_to_clean) {
    + tx_buffer = &tx_ring->tx_buffer[next_to_clean];
    + if (tx_buffer->dma) {
    + pci_unmap_page(adapter->pdev, tx_buffer->dma,
    + tx_buffer->length, PCI_DMA_TODEVICE);
    + tx_buffer->dma = 0;
    + }
    +
    + if (tx_buffer->skb) {
    + dev_kfree_skb_irq(tx_buffer->skb);
    + tx_buffer->skb = NULL;
    + }
    +
    + if (++next_to_clean == tx_ring->count)
    + next_to_clean = 0;
    + }
    +
    + atomic_set(&tx_ring->next_to_clean, next_to_clean);
    +
    + if (netif_queue_stopped(adapter->netdev) &&
    + netif_carrier_ok(adapter->netdev)) {
    + netif_wake_queue(adapter->netdev);
    + }
    +
    + return true;
    +}
    +
    +/*
    + * atl1e_intr - Interrupt Handler
    + * @irq: interrupt number
    + * @data: pointer to a network interface device structure
    + * @pt_regs: CPU registers structure
    + */
    +static irqreturn_t atl1e_intr(int irq, void *data)
    +{
    + struct net_device *netdev = data;
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct pci_dev *pdev = adapter->pdev;
    + struct atl1e_hw *hw = &adapter->hw;
    + int max_ints = AT_MAX_INT_WORK;
    + int handled = IRQ_NONE;
    + u32 status;
    +
    + do {
    + status = AT_READ_REG(hw, REG_ISR);
    + if ((status & IMR_NORMAL_MASK) == 0 ||
    + (status & ISR_DIS_INT) != 0) {
    + if (max_ints != AT_MAX_INT_WORK)
    + handled = IRQ_HANDLED;
    + break;
    + }
    + /* link event */
    + if (status & ISR_GPHY)
    + atl1e_clear_phy_int(adapter);
    + /* Ack ISR */
    + AT_WRITE_REG(hw, REG_ISR, status | ISR_DIS_INT);
    +
    + handled = IRQ_HANDLED;
    + /* check if PCIE PHY Link down */
    + if (status & ISR_PHY_LINKDOWN) {
    + dev_err(&pdev->dev,
    + "pcie phy linkdown %x\n", status);
    + if (netif_running(adapter->netdev)) {
    + /* reset MAC */
    + atl1e_irq_reset(adapter);
    + schedule_work(&adapter->reset_task);
    + break;
    + }
    + }
    +
    + /* check if DMA read/write error */
    + if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) {
    + dev_err(&pdev->dev,
    + "PCIE DMA RW error (status = 0x%x)\n",
    + status);
    + atl1e_irq_reset(adapter);
    + schedule_work(&adapter->reset_task);
    + break;
    + }
    +
    + if (status & ISR_SMB)
    + atl1e_update_hw_stats(adapter);
    +
    + /* link event */
    + if (status & (ISR_GPHY | ISR_MANUAL)) {
    + adapter->net_stats.tx_carrier_errors++;
    + atl1e_link_chg_event(adapter);
    + break;
    + }
    +
    + /* transmit event */
    + if (status & ISR_TX_EVENT)
    + atl1e_clean_tx_irq(adapter);
    +
    + if (status & ISR_RX_EVENT) {
    + /*
    + * disable rx interrupts, without
    + * the synchronize_irq bit
    + */
    + AT_WRITE_REG(hw, REG_IMR,
    + IMR_NORMAL_MASK & ~ISR_RX_EVENT);
    + AT_WRITE_FLUSH(hw);
    + if (likely(netif_rx_schedule_prep(netdev,
    + &adapter->napi)))
    + __netif_rx_schedule(netdev, &adapter->napi);
    + }
    + } while (--max_ints > 0);
    + /* re-enable Interrupt*/
    + AT_WRITE_REG(&adapter->hw, REG_ISR, 0);
    +
    + return handled;
    +}
    +
    +static inline void atl1e_rx_checksum(struct atl1e_adapter *adapter,
    + struct sk_buff *skb, struct atl1e_recv_ret_status *prrs)
    +{
    + u8 *packet = (u8 *)(prrs + 1);
    + struct iphdr *iph;
    + u16 head_len = ETH_HLEN;
    + u16 pkt_flags;
    + u16 err_flags;
    +
    + skb->ip_summed = CHECKSUM_NONE;
    + pkt_flags = prrs->pkt_flag;
    + err_flags = prrs->err_flag;
    + if (((pkt_flags & RRS_IS_IPV4) || (pkt_flags & RRS_IS_IPV6)) &&
    + ((pkt_flags & RRS_IS_TCP) || (pkt_flags & RRS_IS_UDP))) {
    + if (pkt_flags & RRS_IS_IPV4) {
    + if (pkt_flags & RRS_IS_802_3)
    + head_len += 8;
    + iph = (struct iphdr *) (packet + head_len);
    + if (iph->frag_off != 0 && !(pkt_flags & RRS_IS_IP_DF))
    + goto hw_xsum;
    + }
    + if (!(err_flags & (RRS_ERR_IP_CSUM | RRS_ERR_L4_CSUM))) {
    + skb->ip_summed = CHECKSUM_UNNECESSARY;
    + return;
    + }
    + }
    +
    +hw_xsum :
    + return;
    +}
    +
    +static struct atl1e_rx_page *atl1e_get_rx_page(struct atl1e_adapter *adapter,
    + u8 que)
    +{
    + struct atl1e_rx_page_desc *rx_page_desc =
    + (struct atl1e_rx_page_desc *) adapter->rx_ring.rx_page_desc;
    + u8 rx_using = rx_page_desc[que].rx_using;
    +
    + return (struct atl1e_rx_page *)&(rx_page_desc[que].rx_page[rx_using]);
    +}
    +
    +static void atl1e_clean_rx_irq(struct atl1e_adapter *adapter, u8 que,
    + int *work_done, int work_to_do)
    +{
    + struct pci_dev *pdev = adapter->pdev;
    + struct net_device *netdev = adapter->netdev;
    + struct atl1e_rx_ring *rx_ring = (struct atl1e_rx_ring *)
    + &adapter->rx_ring;
    + struct atl1e_rx_page_desc *rx_page_desc =
    + (struct atl1e_rx_page_desc *) rx_ring->rx_page_desc;
    + struct sk_buff *skb = NULL;
    + struct atl1e_rx_page *rx_page = atl1e_get_rx_page(adapter, que);
    + u32 packet_size, write_offset;
    + struct atl1e_recv_ret_status *prrs;
    +
    + write_offset = *(rx_page->write_offset_addr);
    + if (likely(rx_page->read_offset < write_offset)) {
    + do {
    + if (*work_done >= work_to_do)
    + break;
    + (*work_done)++;
    + /* get new packet's rrs */
    + prrs = (struct atl1e_recv_ret_status *) (rx_page->addr +
    + rx_page->read_offset);
    + /* check sequence number */
    + if (prrs->seq_num != rx_page_desc[que].rx_nxseq) {
    + dev_err(&pdev->dev,
    + "rx sequence number"
    + " error (rx=%d) (expect=%d)\n",
    + prrs->seq_num,
    + rx_page_desc[que].rx_nxseq);
    + rx_page_desc[que].rx_nxseq++;
    + /* just for debug use */
    + AT_WRITE_REG(&adapter->hw, REG_DEBUG_DATA0,
    + (((u32)prrs->seq_num) << 16) |
    + rx_page_desc[que].rx_nxseq);
    + goto fatal_err;
    + }
    + rx_page_desc[que].rx_nxseq++;
    +
    + /* error packet */
    + if (prrs->pkt_flag & RRS_IS_ERR_FRAME) {
    + if (prrs->err_flag & (RRS_ERR_BAD_CRC |
    + RRS_ERR_DRIBBLE | RRS_ERR_CODE |
    + RRS_ERR_TRUNC)) {
    + /* hardware error, discard this packet*/
    + dev_err(&pdev->dev,
    + "rx packet desc error %x\n",
    + *((u32 *)prrs + 1));
    + goto skip_pkt;
    + }
    + }
    +
    + packet_size = ((prrs->word1 >> RRS_PKT_SIZE_SHIFT) &
    + RRS_PKT_SIZE_MASK) - 4; /* CRC */
    + skb = netdev_alloc_skb(netdev,
    + packet_size + NET_IP_ALIGN);
    + if (skb == NULL) {
    + dev_warn(&pdev->dev, "%s: Memory squeeze,"
    + "deferring packet.\n", netdev->name);
    + goto skip_pkt;
    + }
    + skb_reserve(skb, NET_IP_ALIGN);
    + skb->dev = netdev;
    + memcpy(skb->data, (u8 *)(prrs + 1), packet_size);
    + skb_put(skb, packet_size);
    + skb->protocol = eth_type_trans(skb, netdev);
    + atl1e_rx_checksum(adapter, skb, prrs);
    +
    + if (unlikely(adapter->vlgrp &&
    + (prrs->pkt_flag & RRS_IS_VLAN_TAG))) {
    + u16 vlan_tag = (prrs->vtag >> 4) |
    + ((prrs->vtag & 7) << 13) |
    + ((prrs->vtag & 8) << 9);
    + dev_dbg(&pdev->dev,
    + "RXD VLAN TAG=0x%04x\n",
    + prrs->vtag);
    + vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
    + vlan_tag);
    + } else {
    + netif_receive_skb(skb);
    + }
    +
    + netdev->last_rx = jiffies;
    +skip_pkt:
    + /* skip current packet whether it's ok or not. */
    + rx_page->read_offset +=
    + (((u32)((prrs->word1 >> RRS_PKT_SIZE_SHIFT) &
    + RRS_PKT_SIZE_MASK) +
    + sizeof(struct atl1e_recv_ret_status) + 31) &
    + 0xFFFFFFE0);
    +
    + if (rx_page->read_offset >= rx_ring->page_size) {
    + /* mark this page clean */
    + u16 reg_addr;
    + u8 rx_using;
    +
    + rx_page->read_offset =
    + *(rx_page->write_offset_addr) = 0;
    + rx_using = rx_page_desc[que].rx_using;
    + reg_addr =
    + atl1e_rx_page_vld_regs[que][rx_using];
    + AT_WRITE_REGB(&adapter->hw, reg_addr, 1);
    + rx_page_desc[que].rx_using ^= 1;
    + rx_page = atl1e_get_rx_page(adapter, que);
    + }
    + write_offset = *(rx_page->write_offset_addr);
    + } while (rx_page->read_offset < write_offset);
    + }
    +
    + return;
    +
    +fatal_err:
    + if (!test_bit(__AT_DOWN, &adapter->flags))
    + schedule_work(&adapter->reset_task);
    +}
    +
    +/*
    + * atl1e_clean - NAPI Rx polling callback
    + * @adapter: board private structure
    + */
    +static int atl1e_clean(struct napi_struct *napi, int budget)
    +{
    + struct atl1e_adapter *adapter =
    + container_of(napi, struct atl1e_adapter, napi);
    + struct net_device *netdev = adapter->netdev;
    + struct pci_dev *pdev = adapter->pdev;
    + u32 imr_data;
    + int work_done = 0;
    +
    + /* Keep link state information with original netdev */
    + if (!netif_carrier_ok(adapter->netdev))
    + goto quit_polling;
    +
    + atl1e_clean_rx_irq(adapter, 0, &work_done, budget);
    +
    + /* If no Tx and not enough Rx work done, exit the polling mode */
    + if (work_done < budget) {
    +quit_polling:
    + netif_rx_complete(netdev, napi);
    + imr_data = AT_READ_REG(&adapter->hw, REG_IMR);
    + AT_WRITE_REG(&adapter->hw, REG_IMR, imr_data | ISR_RX_EVENT);
    + /* test debug */
    + if (test_bit(__AT_DOWN, &adapter->flags)) {
    + atomic_dec(&adapter->irq_sem);
    + dev_err(&pdev->dev,
    + "atl1e_clean is called when AT_DOWN\n");
    + }
    + /* reenable RX intr */
    + /*atl1e_irq_enable(adapter); */
    +
    + }
    + return work_done;
    +}
    +
    +#ifdef CONFIG_NET_POLL_CONTROLLER
    +
    +/*
    + * Polling 'interrupt' - used by things like netconsole to send skbs
    + * without having to re-enable interrupts. It's not called while
    + * the interrupt routine is executing.
    + */
    +static void atl1e_netpoll(struct net_device *netdev)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    +
    + disable_irq(adapter->pdev->irq);
    + atl1e_intr(adapter->pdev->irq, netdev);
    + enable_irq(adapter->pdev->irq);
    +}
    +#endif
    +
    +static inline u16 atl1e_tpd_avail(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_tx_ring *tx_ring = &adapter->tx_ring;
    + u16 next_to_use = 0;
    + u16 next_to_clean = 0;
    +
    + next_to_clean = atomic_read(&tx_ring->next_to_clean);
    + next_to_use = tx_ring->next_to_use;
    +
    + return (u16)(next_to_clean > next_to_use) ?
    + (next_to_clean - next_to_use - 1) :
    + (tx_ring->count + next_to_clean - next_to_use - 1);
    +}
    +
    +/*
    + * get next usable tpd
    + * Note: should call atl1e_tdp_avail to make sure
    + * there is enough tpd to use
    + */
    +static struct atl1e_tpd_desc *atl1e_get_tpd(struct atl1e_adapter *adapter)
    +{
    + struct atl1e_tx_ring *tx_ring = &adapter->tx_ring;
    + u16 next_to_use = 0;
    +
    + next_to_use = tx_ring->next_to_use;
    + if (++tx_ring->next_to_use == tx_ring->count)
    + tx_ring->next_to_use = 0;
    +
    + memset(&tx_ring->desc[next_to_use], 0, sizeof(struct atl1e_tpd_desc));
    + return (struct atl1e_tpd_desc *)&tx_ring->desc[next_to_use];
    +}
    +
    +static struct atl1e_tx_buffer *
    +atl1e_get_tx_buffer(struct atl1e_adapter *adapter, struct atl1e_tpd_desc *tpd)
    +{
    + struct atl1e_tx_ring *tx_ring = &adapter->tx_ring;
    +
    + return &tx_ring->tx_buffer[tpd - tx_ring->desc];
    +}
    +
    +/* Calculate the transmit packet descript needed*/
    +static u16 atl1e_cal_tdp_req(const struct sk_buff *skb)
    +{
    + int i = 0;
    + u16 tpd_req = 1;
    + u16 fg_size = 0;
    + u16 proto_hdr_len = 0;
    +
    + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
    + fg_size = skb_shinfo(skb)->frags[i].size;
    + tpd_req += ((fg_size + MAX_TX_BUF_LEN - 1) >> MAX_TX_BUF_SHIFT);
    + }
    +
    + if (skb_is_gso(skb)) {
    + if (skb->protocol == ntohs(ETH_P_IP) ||
    + (skb_shinfo(skb)->gso_type == SKB_GSO_TCPV6)) {
    + proto_hdr_len = skb_transport_offset(skb) +
    + tcp_hdrlen(skb);
    + if (proto_hdr_len < skb_headlen(skb)) {
    + tpd_req += ((skb_headlen(skb) - proto_hdr_len +
    + MAX_TX_BUF_LEN - 1) >>
    + MAX_TX_BUF_SHIFT);
    + }
    + }
    +
    + }
    + return tpd_req;
    +}
    +
    +static int atl1e_tso_csum(struct atl1e_adapter *adapter,
    + struct sk_buff *skb, struct atl1e_tpd_desc *tpd)
    +{
    + struct pci_dev *pdev = adapter->pdev;
    + u8 hdr_len;
    + u32 real_len;
    + unsigned short offload_type;
    + int err;
    +
    + if (skb_is_gso(skb)) {
    + if (skb_header_cloned(skb)) {
    + err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
    + if (unlikely(err))
    + return -1;
    + }
    + offload_type = skb_shinfo(skb)->gso_type;
    +
    + if (offload_type & SKB_GSO_TCPV4) {
    + real_len = (((unsigned char *)ip_hdr(skb) - skb->data)
    + + ntohs(ip_hdr(skb)->tot_len));
    +
    + if (real_len < skb->len)
    + pskb_trim(skb, real_len);
    +
    + hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb));
    + if (unlikely(skb->len == hdr_len)) {
    + /* only xsum need */
    + dev_warn(&pdev->dev,
    + "IPV4 tso with zero data??\n");
    + goto check_sum;
    + } else {
    + ip_hdr(skb)->check = 0;
    + ip_hdr(skb)->tot_len = 0;
    + tcp_hdr(skb)->check = ~csum_tcpudp_magic(
    + ip_hdr(skb)->saddr,
    + ip_hdr(skb)->daddr,
    + 0, IPPROTO_TCP, 0);
    + tpd->word3 |= (ip_hdr(skb)->ihl &
    + TDP_V4_IPHL_MASK) <<
    + TPD_V4_IPHL_SHIFT;
    + tpd->word3 |= ((tcp_hdrlen(skb) >> 2) &
    + TPD_TCPHDRLEN_MASK) <<
    + TPD_TCPHDRLEN_SHIFT;
    + tpd->word3 |= ((skb_shinfo(skb)->gso_size) &
    + TPD_MSS_MASK) << TPD_MSS_SHIFT;
    + tpd->word3 |= 1 << TPD_SEGMENT_EN_SHIFT;
    + }
    + return 0;
    + }
    +
    + if (offload_type & SKB_GSO_TCPV6) {
    + real_len = (((unsigned char *)ipv6_hdr(skb) - skb->data)
    + + ntohs(ipv6_hdr(skb)->payload_len));
    + if (real_len < skb->len)
    + pskb_trim(skb, real_len);
    +
    + /* check payload == 0 byte ? */
    + hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb));
    + if (unlikely(skb->len == hdr_len)) {
    + /* only xsum need */
    + dev_warn(&pdev->dev,
    + "IPV6 tso with zero data??\n");
    + goto check_sum;
    + } else {
    + tcp_hdr(skb)->check = ~csum_ipv6_magic(
    + &ipv6_hdr(skb)->saddr,
    + &ipv6_hdr(skb)->daddr,
    + 0, IPPROTO_TCP, 0);
    + tpd->word3 |= 1 << TPD_IP_VERSION_SHIFT;
    + hdr_len >>= 1;
    + tpd->word3 |= (hdr_len & TPD_V6_IPHLLO_MASK) <<
    + TPD_V6_IPHLLO_SHIFT;
    + tpd->word3 |= ((hdr_len >> 3) &
    + TPD_V6_IPHLHI_MASK) <<
    + TPD_V6_IPHLHI_SHIFT;
    + tpd->word3 |= (tcp_hdrlen(skb) >> 2 &
    + TPD_TCPHDRLEN_MASK) <<
    + TPD_TCPHDRLEN_SHIFT;
    + tpd->word3 |= ((skb_shinfo(skb)->gso_size) &
    + TPD_MSS_MASK) << TPD_MSS_SHIFT;
    + tpd->word3 |= 1 << TPD_SEGMENT_EN_SHIFT;
    + }
    + }
    + return 0;
    + }
    +
    +check_sum:
    + if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
    + u8 css, cso;
    +
    + cso = skb_transport_offset(skb);
    + if (unlikely(cso & 0x1)) {
    + dev_err(&adapter->pdev->dev,
    + "pay load offset should not ant event number\n");
    + return -1;
    + } else {
    + css = cso + skb->csum_offset;
    + tpd->word3 |= (cso & TPD_PLOADOFFSET_MASK) <<
    + TPD_PLOADOFFSET_SHIFT;
    + tpd->word3 |= (css & TPD_CCSUMOFFSET_MASK) <<
    + TPD_CCSUMOFFSET_SHIFT;
    + tpd->word3 |= 1 << TPD_CC_SEGMENT_EN_SHIFT;
    + }
    + }
    +
    + return 0;
    +}
    +
    +static void atl1e_tx_map(struct atl1e_adapter *adapter,
    + struct sk_buff *skb, struct atl1e_tpd_desc *tpd)
    +{
    + struct atl1e_tpd_desc *use_tpd = NULL;
    + struct atl1e_tx_buffer *tx_buffer = NULL;
    + u16 buf_len = skb->len - skb->data_len;
    + u16 map_len = 0;
    + u16 mapped_len = 0;
    + u16 hdr_len = 0;
    + u16 nr_frags;
    + u16 f;
    + int segment;
    +
    + nr_frags = skb_shinfo(skb)->nr_frags;
    + segment = (tpd->word3 >> TPD_SEGMENT_EN_SHIFT) & TPD_SEGMENT_EN_MASK;
    + if (segment) {
    + /* TSO */
    + map_len = hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
    + use_tpd = tpd;
    +
    + tx_buffer = atl1e_get_tx_buffer(adapter, use_tpd);
    + tx_buffer->length = map_len;
    + tx_buffer->dma = pci_map_single(adapter->pdev,
    + skb->data, hdr_len, PCI_DMA_TODEVICE);
    + mapped_len += map_len;
    + use_tpd->buffer_addr = cpu_to_le64(tx_buffer->dma);
    + use_tpd->word2 = (use_tpd->word2 & (~TPD_BUFLEN_MASK)) |
    + ((cpu_to_le32(tx_buffer->length) &
    + TPD_BUFLEN_MASK) << TPD_BUFLEN_SHIFT);
    + }
    +
    + while (mapped_len < buf_len) {
    + /* mapped_len == 0, means we should use the first tpd,
    + which is given by caller */
    + if (mapped_len == 0) {
    + use_tpd = tpd;
    + } else {
    + use_tpd = atl1e_get_tpd(adapter);
    + memcpy(use_tpd, tpd, sizeof(struct atl1e_tpd_desc));
    + }
    + tx_buffer = atl1e_get_tx_buffer(adapter, use_tpd);
    + tx_buffer->skb = NULL;
    +
    + tx_buffer->length = map_len =
    + ((buf_len - mapped_len) >= MAX_TX_BUF_LEN) ?
    + MAX_TX_BUF_LEN : (buf_len - mapped_len);
    + tx_buffer->dma =
    + pci_map_single(adapter->pdev, skb->data + mapped_len,
    + map_len, PCI_DMA_TODEVICE);
    + mapped_len += map_len;
    + use_tpd->buffer_addr = cpu_to_le64(tx_buffer->dma);
    + use_tpd->word2 = (use_tpd->word2 & (~TPD_BUFLEN_MASK)) |
    + ((cpu_to_le32(tx_buffer->length) &
    + TPD_BUFLEN_MASK) << TPD_BUFLEN_SHIFT);
    + }
    +
    + for (f = 0; f < nr_frags; f++) {
    + struct skb_frag_struct *frag;
    + u16 i;
    + u16 seg_num;
    +
    + frag = &skb_shinfo(skb)->frags[f];
    + buf_len = frag->size;
    +
    + seg_num = (buf_len + MAX_TX_BUF_LEN - 1) / MAX_TX_BUF_LEN;
    + for (i = 0; i < seg_num; i++) {
    + use_tpd = atl1e_get_tpd(adapter);
    + memcpy(use_tpd, tpd, sizeof(struct atl1e_tpd_desc));
    +
    + tx_buffer = atl1e_get_tx_buffer(adapter, use_tpd);
    + if (tx_buffer->skb)
    + BUG();
    +
    + tx_buffer->skb = NULL;
    + tx_buffer->length =
    + (buf_len > MAX_TX_BUF_LEN) ?
    + MAX_TX_BUF_LEN : buf_len;
    + buf_len -= tx_buffer->length;
    +
    + tx_buffer->dma =
    + pci_map_page(adapter->pdev, frag->page,
    + frag->page_offset +
    + (i * MAX_TX_BUF_LEN),
    + tx_buffer->length,
    + PCI_DMA_TODEVICE);
    + use_tpd->buffer_addr = cpu_to_le64(tx_buffer->dma);
    + use_tpd->word2 = (use_tpd->word2 & (~TPD_BUFLEN_MASK)) |
    + ((cpu_to_le32(tx_buffer->length) &
    + TPD_BUFLEN_MASK) << TPD_BUFLEN_SHIFT);
    + }
    + }
    +
    + if ((tpd->word3 >> TPD_SEGMENT_EN_SHIFT) & TPD_SEGMENT_EN_MASK)
    + /* note this one is a tcp header */
    + tpd->word3 |= 1 << TPD_HDRFLAG_SHIFT;
    + /* The last tpd */
    +
    + use_tpd->word3 |= 1 << TPD_EOP_SHIFT;
    + /* The last buffer info contain the skb address,
    + so it will be free after unmap */
    + tx_buffer->skb = skb;
    +}
    +
    +static void atl1e_tx_queue(struct atl1e_adapter *adapter, u16 count,
    + struct atl1e_tpd_desc *tpd)
    +{
    + struct atl1e_tx_ring *tx_ring = &adapter->tx_ring;
    + /* Force memory writes to complete before letting h/w
    + * know there are new descriptors to fetch. (Only
    + * applicable for weak-ordered memory model archs,
    + * such as IA-64). */
    + wmb();
    + AT_WRITE_REG(&adapter->hw, REG_MB_TPD_PROD_IDX, tx_ring->next_to_use);
    +}
    +
    +static int atl1e_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + unsigned long flags;
    + u16 tpd_req = 1;
    + struct atl1e_tpd_desc *tpd;
    +
    + if (test_bit(__AT_DOWN, &adapter->flags)) {
    + dev_kfree_skb_any(skb);
    + return NETDEV_TX_OK;
    + }
    +
    + if (unlikely(skb->len <= 0)) {
    + dev_kfree_skb_any(skb);
    + return NETDEV_TX_OK;
    + }
    + tpd_req = atl1e_cal_tdp_req(skb);
    + if (!spin_trylock_irqsave(&adapter->tx_lock, flags))
    + return NETDEV_TX_LOCKED;
    +
    + if (atl1e_tpd_avail(adapter) < tpd_req) {
    + /* no enough descriptor, just stop queue */
    + netif_stop_queue(netdev);
    + spin_unlock_irqrestore(&adapter->tx_lock, flags);
    + return NETDEV_TX_BUSY;
    + }
    +
    + tpd = atl1e_get_tpd(adapter);
    +
    + if (unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) {
    + u16 vlan_tag = vlan_tx_tag_get(skb);
    + u16 atl1e_vlan_tag;
    +
    + tpd->word3 |= 1 << TPD_INS_VL_TAG_SHIFT;
    + AT_VLAN_TAG_TO_TPD_TAG(vlan_tag, atl1e_vlan_tag);
    + tpd->word2 |= (atl1e_vlan_tag & TPD_VLANTAG_MASK) <<
    + TPD_VLAN_SHIFT;
    + }
    +
    + if (skb->protocol == ntohs(ETH_P_8021Q))
    + tpd->word3 |= 1 << TPD_VL_TAGGED_SHIFT;
    +
    + if (skb_network_offset(skb) != ETH_HLEN)
    + tpd->word3 |= 1 << TPD_ETHTYPE_SHIFT; /* 802.3 frame */
    +
    + /* do TSO and check sum */
    + if (atl1e_tso_csum(adapter, skb, tpd) != 0) {
    + spin_unlock_irqrestore(&adapter->tx_lock, flags);
    + dev_kfree_skb_any(skb);
    + return NETDEV_TX_OK;
    + }
    +
    + atl1e_tx_map(adapter, skb, tpd);
    + atl1e_tx_queue(adapter, tpd_req, tpd);
    +
    + netdev->trans_start = jiffies;
    + spin_unlock_irqrestore(&adapter->tx_lock, flags);
    + return NETDEV_TX_OK;
    +}
    +
    +static void atl1e_free_irq(struct atl1e_adapter *adapter)
    +{
    + struct net_device *netdev = adapter->netdev;
    +
    + free_irq(adapter->pdev->irq, netdev);
    +
    + if (adapter->have_msi)
    + pci_disable_msi(adapter->pdev);
    +}
    +
    +static int atl1e_request_irq(struct atl1e_adapter *adapter)
    +{
    + struct pci_dev *pdev = adapter->pdev;
    + struct net_device *netdev = adapter->netdev;
    + int flags = 0;
    + int err = 0;
    +
    + adapter->have_msi = true;
    + err = pci_enable_msi(adapter->pdev);
    + if (err) {
    + dev_dbg(&pdev->dev,
    + "Unable to allocate MSI interrupt Error: %d\n", err);
    + adapter->have_msi = false;
    + } else
    + netdev->irq = pdev->irq;
    +
    +
    + if (!adapter->have_msi)
    + flags |= IRQF_SHARED;
    + err = request_irq(adapter->pdev->irq, &atl1e_intr, flags,
    + netdev->name, netdev);
    + if (err) {
    + dev_dbg(&pdev->dev,
    + "Unable to allocate interrupt Error: %d\n", err);
    + if (adapter->have_msi)
    + pci_disable_msi(adapter->pdev);
    + return err;
    + }
    + dev_dbg(&pdev->dev, "atl1e_request_irq OK\n");
    + return err;
    +}
    +
    +int atl1e_up(struct atl1e_adapter *adapter)
    +{
    + struct net_device *netdev = adapter->netdev;
    + int err = 0;
    + u32 val;
    +
    + /* hardware has been reset, we need to reload some things */
    + err = atl1e_init_hw(&adapter->hw);
    + if (err) {
    + err = -EIO;
    + return err;
    + }
    + atl1e_init_ring_ptrs(adapter);
    + atl1e_set_multi(netdev);
    + atl1e_restore_vlan(adapter);
    +
    + if (atl1e_configure(adapter)) {
    + err = -EIO;
    + goto err_up;
    + }
    +
    + clear_bit(__AT_DOWN, &adapter->flags);
    + napi_enable(&adapter->napi);
    + atl1e_irq_enable(adapter);
    + val = AT_READ_REG(&adapter->hw, REG_MASTER_CTRL);
    + AT_WRITE_REG(&adapter->hw, REG_MASTER_CTRL,
    + val | MASTER_CTRL_MANUAL_INT);
    +
    +err_up:
    + return err;
    +}
    +
    +void atl1e_down(struct atl1e_adapter *adapter)
    +{
    + struct net_device *netdev = adapter->netdev;
    +
    + /* signal that we're down so the interrupt handler does not
    + * reschedule our watchdog timer */
    + set_bit(__AT_DOWN, &adapter->flags);
    +
    +#ifdef NETIF_F_LLTX
    + netif_stop_queue(netdev);
    +#else
    + netif_tx_disable(netdev);
    +#endif
    +
    + /* reset MAC to disable all RX/TX */
    + atl1e_reset_hw(&adapter->hw);
    + msleep(1);
    +
    + napi_disable(&adapter->napi);
    + atl1e_del_timer(adapter);
    + atl1e_irq_disable(adapter);
    +
    + netif_carrier_off(netdev);
    + adapter->link_speed = SPEED_0;
    + adapter->link_duplex = -1;
    + atl1e_clean_tx_ring(adapter);
    + atl1e_clean_rx_ring(adapter);
    +}
    +
    +/*
    + * atl1e_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). At this point all resources needed
    + * for transmit and receive operations are allocated, the interrupt
    + * handler is registered with the OS, the watchdog timer is started,
    + * and the stack is notified that the interface is ready.
    + */
    +static int atl1e_open(struct net_device *netdev)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + int err;
    +
    + /* disallow open during test */
    + if (test_bit(__AT_TESTING, &adapter->flags))
    + return -EBUSY;
    +
    + /* allocate rx/tx dma buffer & descriptors */
    + atl1e_init_ring_resources(adapter);
    + err = atl1e_setup_ring_resources(adapter);
    + if (unlikely(err))
    + return err;
    +
    + err = atl1e_request_irq(adapter);
    + if (unlikely(err))
    + goto err_req_irq;
    +
    + err = atl1e_up(adapter);
    + if (unlikely(err))
    + goto err_up;
    +
    + return 0;
    +
    +err_up:
    + atl1e_free_irq(adapter);
    +err_req_irq:
    + atl1e_free_ring_resources(adapter);
    + atl1e_reset_hw(&adapter->hw);
    +
    + return err;
    +}
    +
    +/*
    + * atl1e_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 atl1e_close(struct net_device *netdev)
    +{
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    +
    + WARN_ON(test_bit(__AT_RESETTING, &adapter->flags));
    + atl1e_down(adapter);
    + atl1e_free_irq(adapter);
    + atl1e_free_ring_resources(adapter);
    +
    + return 0;
    +}
    +
    +#ifdef CONFIG_PM
    +static int atl1e_suspend(struct pci_dev *pdev, pm_message_t state)
    +{
    + struct net_device *netdev = pci_get_drvdata(pdev);
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + struct atl1e_hw *hw = &adapter->hw;
    + u32 ctrl = 0;
    + u32 mac_ctrl_data = 0;
    + u32 wol_ctrl_data = 0;
    + u16 mii_advertise_data = 0;
    + u16 mii_bmsr_data = 0;
    + u16 mii_intr_status_data = 0;
    + u32 wufc = adapter->wol;
    + u32 i;
    +#ifdef CONFIG_PM
    + int retval = 0;
    +#endif
    +
    + if (netif_running(netdev)) {
    + WARN_ON(test_bit(__AT_RESETTING, &adapter->flags));
    + atl1e_down(adapter);
    + }
    + netif_device_detach(netdev);
    +
    +#ifdef CONFIG_PM
    + retval = pci_save_state(pdev);
    + if (retval)
    + return retval;
    +#endif
    +
    + if (wufc) {
    + /* get link status */
    + atl1e_read_phy_reg(hw, MII_BMSR, (u16 *)&mii_bmsr_data);
    + atl1e_read_phy_reg(hw, MII_BMSR, (u16 *)&mii_bmsr_data);
    +
    + mii_advertise_data = MII_AR_10T_HD_CAPS;
    +
    + if ((atl1e_write_phy_reg(hw, MII_AT001_CR, 0) != 0) ||
    + (atl1e_write_phy_reg(hw,
    + MII_ADVERTISE, mii_advertise_data) != 0) ||
    + (atl1e_phy_commit(hw)) != 0) {
    + dev_dbg(&pdev->dev, "set phy register failed\n");
    + goto wol_dis;
    + }
    +
    + hw->phy_configured = false; /* re-init PHY when resume */
    +
    + /* turn on magic packet wol */
    + if (wufc & AT_WUFC_MAG)
    + wol_ctrl_data |= WOL_MAGIC_EN | WOL_MAGIC_PME_EN;
    +
    + if (wufc & AT_WUFC_LNKC) {
    + /* if orignal link status is link, just wait for retrive link */
    + if (mii_bmsr_data & BMSR_LSTATUS) {
    + for (i = 0; i < AT_SUSPEND_LINK_TIMEOUT; i++) {
    + msleep(100);
    + atl1e_read_phy_reg(hw, MII_BMSR,
    + (u16 *)&mii_bmsr_data);
    + if (mii_bmsr_data & BMSR_LSTATUS)
    + break;
    + }
    +
    + if ((mii_bmsr_data & BMSR_LSTATUS) == 0)
    + dev_dbg(&pdev->dev,
    + "%s: Link may change"
    + "when suspend\n",
    + atl1e_driver_name);
    + }
    + wol_ctrl_data |= WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN;
    + /* only link up can wake up */
    + if (atl1e_write_phy_reg(hw, MII_INT_CTRL, 0x400) != 0) {
    + dev_dbg(&pdev->dev, "%s: read write phy "
    + "register failed.\n",
    + atl1e_driver_name);
    + goto wol_dis;
    + }
    + }
    + /* clear phy interrupt */
    + atl1e_read_phy_reg(hw, MII_INT_STATUS, &mii_intr_status_data);
    + /* Config MAC Ctrl register */
    + mac_ctrl_data = MAC_CTRL_RX_EN;
    + /* set to 10/100M halt duplex */
    + mac_ctrl_data |= MAC_CTRL_SPEED_10_100 << MAC_CTRL_SPEED_SHIFT;
    + mac_ctrl_data |= (((u32)adapter->hw.preamble_len &
    + MAC_CTRL_PRMLEN_MASK) <<
    + MAC_CTRL_PRMLEN_SHIFT);
    +
    + if (adapter->vlgrp)
    + mac_ctrl_data |= MAC_CTRL_RMV_VLAN;
    +
    + /* magic packet maybe Broadcast&multicast&Unicast frame */
    + if (wufc & AT_WUFC_MAG)
    + mac_ctrl_data |= MAC_CTRL_BC_EN;
    +
    + dev_dbg(&pdev->dev,
    + "%s: suspend MAC=0x%x\n",
    + atl1e_driver_name, mac_ctrl_data);
    +
    + AT_WRITE_REG(hw, REG_WOL_CTRL, wol_ctrl_data);
    + AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl_data);
    + /* pcie patch */
    + ctrl = AT_READ_REG(hw, REG_PCIE_PHYMISC);
    + ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
    + AT_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl);
    + pci_enable_wake(pdev, pci_choose_state(pdev, state), 1);
    + goto suspend_exit;
    + }
    +wol_dis:
    +
    + /* WOL disabled */
    + AT_WRITE_REG(hw, REG_WOL_CTRL, 0);
    +
    + /* pcie patch */
    + ctrl = AT_READ_REG(hw, REG_PCIE_PHYMISC);
    + ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
    + AT_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl);
    +
    + atl1e_force_ps(hw);
    + hw->phy_configured = false; /* re-init PHY when resume */
    +
    + pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
    +
    +suspend_exit:
    +
    + if (netif_running(netdev))
    + atl1e_free_irq(adapter);
    +
    + pci_disable_device(pdev);
    +
    + pci_set_power_state(pdev, pci_choose_state(pdev, state));
    +
    + return 0;
    +}
    +
    +static int atl1e_resume(struct pci_dev *pdev)
    +{
    + struct net_device *netdev = pci_get_drvdata(pdev);
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    + u32 err;
    +
    + pci_set_power_state(pdev, PCI_D0);
    + pci_restore_state(pdev);
    +
    + err = pci_enable_device(pdev);
    + if (err) {
    + dev_err(&pdev->dev, "ATL1e: Cannot enable PCI"
    + " device from suspend\n");
    + return err;
    + }
    +
    + pci_set_master(pdev);
    +
    + AT_READ_REG(&adapter->hw, REG_WOL_CTRL); /* clear WOL status */
    +
    + pci_enable_wake(pdev, PCI_D3hot, 0);
    + pci_enable_wake(pdev, PCI_D3cold, 0);
    +
    + AT_WRITE_REG(&adapter->hw, REG_WOL_CTRL, 0);
    +
    + if (netif_running(netdev))
    + err = atl1e_request_irq(adapter);
    + if (err)
    + return err;
    +
    + atl1e_reset_hw(&adapter->hw);
    +
    + if (netif_running(netdev))
    + atl1e_up(adapter);
    +
    + netif_device_attach(netdev);
    +
    + return 0;
    +}
    +#endif
    +
    +static void atl1e_shutdown(struct pci_dev *pdev)
    +{
    + atl1e_suspend(pdev, PMSG_SUSPEND);
    +}
    +
    +static int atl1e_init_netdev(struct net_device *netdev, struct pci_dev *pdev)
    +{
    + SET_NETDEV_DEV(netdev, &pdev->dev);
    + pci_set_drvdata(pdev, netdev);
    +
    + netdev->irq = pdev->irq;
    + netdev->open = &atl1e_open;
    + netdev->stop = &atl1e_close;
    + netdev->hard_start_xmit = &atl1e_xmit_frame;
    + netdev->get_stats = &atl1e_get_stats;
    + netdev->set_multicast_list = &atl1e_set_multi;
    + netdev->set_mac_address = &atl1e_set_mac_addr;
    + netdev->change_mtu = &atl1e_change_mtu;
    + netdev->do_ioctl = &atl1e_ioctl;
    + netdev->tx_timeout = &atl1e_tx_timeout;
    + netdev->watchdog_timeo = AT_TX_WATCHDOG;
    + netdev->vlan_rx_register = atl1e_vlan_rx_register;
    +#ifdef CONFIG_NET_POLL_CONTROLLER
    + netdev->poll_controller = atl1e_netpoll;
    +#endif
    + atl1e_set_ethtool_ops(netdev);
    +
    + netdev->features = NETIF_F_SG | NETIF_F_HW_CSUM |
    + NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
    + netdev->features |= NETIF_F_LLTX;
    + netdev->features |= NETIF_F_TSO;
    + netdev->features |= NETIF_F_TSO6;
    +
    + return 0;
    +}
    +
    +/*
    + * atl1e_probe - Device Initialization Routine
    + * @pdev: PCI device information struct
    + * @ent: entry in atl1e_pci_tbl
    + *
    + * Returns 0 on success, negative on failure
    + *
    + * atl1e_probe initializes an adapter identified by a pci_dev structure.
    + * The OS initialization, configuring of the adapter private structure,
    + * and a hardware reset occur.
    + */
    +static int __devinit atl1e_probe(struct pci_dev *pdev,
    + const struct pci_device_id *ent)
    +{
    + struct net_device *netdev;
    + struct atl1e_adapter *adapter = NULL;
    + static int cards_found;
    +
    + int err = 0;
    +
    + err = pci_enable_device(pdev);
    + if (err) {
    + dev_err(&pdev->dev, "cannot enable PCI device\n");
    + return err;
    + }
    +
    + /*
    + * The atl1e chip can DMA to 64-bit addresses, but it uses a single
    + * shared register for the high 32 bits, so only a single, aligned,
    + * 4 GB physical address range can be used at a time.
    + *
    + * Supporting 64-bit DMA on this hardware is more trouble than it's
    + * worth. It is far easier to limit to 32-bit DMA than update
    + * various kernel subsystems to support the mechanics required by a
    + * fixed-high-32-bit system.
    + */
    + if ((pci_set_dma_mask(pdev, DMA_32BIT_MASK) != 0) ||
    + (pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK) != 0)) {
    + dev_err(&pdev->dev, "No usable DMA configuration,aborting\n");
    + goto err_dma;
    + }
    +
    + err = pci_request_regions(pdev, atl1e_driver_name);
    + if (err) {
    + dev_err(&pdev->dev, "cannot obtain PCI resources\n");
    + goto err_pci_reg;
    + }
    +
    + pci_set_master(pdev);
    +
    + netdev = alloc_etherdev(sizeof(struct atl1e_adapter));
    + if (netdev == NULL) {
    + err = -ENOMEM;
    + dev_err(&pdev->dev, "etherdev alloc failed\n");
    + goto err_alloc_etherdev;
    + }
    +
    + err = atl1e_init_netdev(netdev, pdev);
    + if (err) {
    + dev_err(&pdev->dev, "init netdevice failed\n");
    + goto err_init_netdev;
    + }
    + adapter = netdev_priv(netdev);
    + adapter->bd_number = cards_found;
    + adapter->netdev = netdev;
    + adapter->pdev = pdev;
    + adapter->hw.adapter = adapter;
    + adapter->hw.hw_addr = pci_iomap(pdev, BAR_0, 0);
    + if (!adapter->hw.hw_addr) {
    + err = -EIO;
    + dev_err(&pdev->dev, "cannot map device registers\n");
    + goto err_ioremap;
    + }
    + netdev->base_addr = (unsigned long)adapter->hw.hw_addr;
    +
    + /* init mii data */
    + adapter->mii.dev = netdev;
    + adapter->mii.mdio_read = atl1e_mdio_read;
    + adapter->mii.mdio_write = atl1e_mdio_write;
    + adapter->mii.phy_id_mask = 0x1f;
    + adapter->mii.reg_num_mask = MDIO_REG_ADDR_MASK;
    +
    + netif_napi_add(netdev, &adapter->napi, atl1e_clean, 64);
    +
    + init_timer(&adapter->phy_config_timer);
    + adapter->phy_config_timer.function = &atl1e_phy_config;
    + adapter->phy_config_timer.data = (unsigned long) adapter;
    +
    + /* get user settings */
    + atl1e_check_options(adapter);
    + /*
    + * Mark all PCI regions associated with PCI device
    + * pdev as being reserved by owner atl1e_driver_name
    + * Enables bus-mastering on the device and calls
    + * pcibios_set_master to do the needed arch specific settings
    + */
    + atl1e_setup_pcicmd(pdev);
    + /* setup the private structure */
    + err = atl1e_sw_init(adapter);
    + if (err) {
    + dev_err(&pdev->dev, "net device private data init failed\n");
    + goto err_sw_init;
    + }
    +
    + /* Init GPHY as early as possible due to power saving issue */
    + spin_lock(&adapter->mdio_lock);
    + atl1e_phy_init(&adapter->hw);
    + spin_unlock(&adapter->mdio_lock);
    + /* reset the controller to
    + * put the device in a known good starting state */
    + err = atl1e_reset_hw(&adapter->hw);
    + if (err) {
    + err = -EIO;
    + goto err_reset;
    + }
    +
    + if (atl1e_read_mac_addr(&adapter->hw) != 0) {
    + err = -EIO;
    + dev_err(&pdev->dev, "get mac address failed\n");
    + goto err_eeprom;
    + }
    +
    + memcpy(netdev->dev_addr, adapter->hw.mac_addr, netdev->addr_len);
    + memcpy(netdev->perm_addr, adapter->hw.mac_addr, netdev->addr_len);
    + dev_dbg(&pdev->dev, "mac address : %02x-%02x-%02x-%02x-%02x-%02x\n",
    + adapter->hw.mac_addr[0], adapter->hw.mac_addr[1],
    + adapter->hw.mac_addr[2], adapter->hw.mac_addr[3],
    + adapter->hw.mac_addr[4], adapter->hw.mac_addr[5]);
    +
    + INIT_WORK(&adapter->reset_task, atl1e_reset_task);
    + INIT_WORK(&adapter->link_chg_task, atl1e_link_chg_task);
    + err = register_netdev(netdev);
    + if (err) {
    + dev_err(&pdev->dev, "register netdevice failed\n");
    + goto err_register;
    + }
    +
    + /* assume we have no link for now */
    + netif_stop_queue(netdev);
    + netif_carrier_off(netdev);
    +
    + cards_found++;
    +
    + return 0;
    +
    +err_reset:
    +err_register:
    +err_sw_init:
    +err_eeprom:
    + iounmap(adapter->hw.hw_addr);
    +err_init_netdev:
    +err_ioremap:
    + free_netdev(netdev);
    +err_alloc_etherdev:
    + pci_release_regions(pdev);
    +err_pci_reg:
    +err_dma:
    + pci_disable_device(pdev);
    + return err;
    +}
    +
    +/*
    + * atl1e_remove - Device Removal Routine
    + * @pdev: PCI device information struct
    + *
    + * atl1e_remove is called by the PCI subsystem to alert the driver
    + * that it should release a PCI device. The could be caused by a
    + * Hot-Plug event, or because the driver is going to be removed from
    + * memory.
    + */
    +static void __devexit atl1e_remove(struct pci_dev *pdev)
    +{
    + struct net_device *netdev = pci_get_drvdata(pdev);
    + struct atl1e_adapter *adapter = netdev_priv(netdev);
    +
    + /*
    + * flush_scheduled work may reschedule our watchdog task, so
    + * explicitly disable watchdog tasks from being rescheduled
    + */
    + set_bit(__AT_DOWN, &adapter->flags);
    +
    + atl1e_del_timer(adapter);
    + atl1e_cancel_work(adapter);
    +
    + unregister_netdev(netdev);
    + atl1e_free_ring_resources(adapter);
    + atl1e_force_ps(&adapter->hw);
    + iounmap(adapter->hw.hw_addr);
    + pci_release_regions(pdev);
    + free_netdev(netdev);
    + pci_disable_device(pdev);
    +}
    +
    +/*
    + * atl1e_io_error_detected - called when PCI error is detected
    + * @pdev: Pointer to PCI device
    + * @state: The current pci connection state
    + *
    + * This function is called after a PCI bus error affecting
    + * this device has been detected.
    + */
    +static pci_ers_result_t
    +atl1e_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
    +{
    + struct net_device *netdev = pci_get_drvdata(pdev);
    + struct atl1e_adapter *adapter = netdev->priv;
    +
    + netif_device_detach(netdev);
    +
    + if (netif_running(netdev))
    + atl1e_down(adapter);
    +
    + pci_disable_device(pdev);
    +
    + /* Request a slot slot reset. */
    + return PCI_ERS_RESULT_NEED_RESET;
    +}
    +
    +/*
    + * atl1e_io_slot_reset - called after the pci bus has been reset.
    + * @pdev: Pointer to PCI device
    + *
    + * Restart the card from scratch, as if from a cold-boot. Implementation
    + * resembles the first-half of the e1000_resume routine.
    + */
    +static pci_ers_result_t atl1e_io_slot_reset(struct pci_dev *pdev)
    +{
    + struct net_device *netdev = pci_get_drvdata(pdev);
    + struct atl1e_adapter *adapter = netdev->priv;
    +
    + if (pci_enable_device(pdev)) {
    + dev_err(&pdev->dev,
    + "ATL1e: Cannot re-enable PCI device after reset.\n");
    + return PCI_ERS_RESULT_DISCONNECT;
    + }
    + pci_set_master(pdev);
    +
    + pci_enable_wake(pdev, PCI_D3hot, 0);
    + pci_enable_wake(pdev, PCI_D3cold, 0);
    +
    + atl1e_reset_hw(&adapter->hw);
    +
    + return PCI_ERS_RESULT_RECOVERED;
    +}
    +
    +/*
    + * atl1e_io_resume - called when traffic can start flowing again.
    + * @pdev: Pointer to PCI device
    + *
    + * This callback is called when the error recovery driver tells us that
    + * its OK to resume normal operation. Implementation resembles the
    + * second-half of the atl1e_resume routine.
    + */
    +static void atl1e_io_resume(struct pci_dev *pdev)
    +{
    + struct net_device *netdev = pci_get_drvdata(pdev);
    + struct atl1e_adapter *adapter = netdev->priv;
    +
    + if (netif_running(netdev)) {
    + if (atl1e_up(adapter)) {
    + dev_err(&pdev->dev,
    + "ATL1e: can't bring device back up after reset\n");
    + return;
    + }
    + }
    +
    + netif_device_attach(netdev);
    +}
    +
    +static struct pci_error_handlers atl1e_err_handler = {
    + .error_detected = atl1e_io_error_detected,
    + .slot_reset = atl1e_io_slot_reset,
    + .resume = atl1e_io_resume,
    +};
    +
    +static struct pci_driver atl1e_driver = {
    + .name = atl1e_driver_name,
    + .id_table = atl1e_pci_tbl,
    + .probe = atl1e_probe,
    + .remove = __devexit_p(atl1e_remove),
    + /* Power Managment Hooks */
    +#ifdef CONFIG_PM
    + .suspend = atl1e_suspend,
    + .resume = atl1e_resume,
    +#endif
    + .shutdown = atl1e_shutdown,
    + .err_handler = &atl1e_err_handler
    +};
    +
    +/*
    + * atl1e_init_module - Driver Registration Routine
    + *
    + * atl1e_init_module is the first routine called when the driver is
    + * loaded. All it does is register with the PCI subsystem.
    + */
    +static int __init atl1e_init_module(void)
    +{
    + return pci_register_driver(&atl1e_driver);
    +}
    +
    +/*
    + * atl1e_exit_module - Driver Exit Cleanup Routine
    + *
    + * atl1e_exit_module is called just before the driver is removed
    + * from memory.
    + */
    +static void __exit atl1e_exit_module(void)
    +{
    + pci_unregister_driver(&atl1e_driver);
    +}
    +
    +module_init(atl1e_init_module);
    +module_exit(atl1e_exit_module);
    diff --git a/drivers/net/atl1e/atl1e_param.c b/drivers/net/atl1e/atl1e_param.c
    new file mode 100644
    index 0000000..f72abb3
    --- /dev/null
    +++ b/drivers/net/atl1e/atl1e_param.c
    @@ -0,0 +1,263 @@
    +/*
    + * Copyright(c) 2007 Atheros Corporation. All rights reserved.
    + *
    + * Derived from Intel e1000 driver
    + * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
    + *
    + * This program is free software; you can redistribute it and/or modify it
    + * under the terms of the GNU General Public License as published by the Free
    + * Software Foundation; either version 2 of the License, or (at your option)
    + * any later version.
    + *
    + * This program is distributed in the hope that it will be useful, but WITHOUT
    + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
    + * more details.
    + *
    + * You should have received a copy of the GNU General Public License along with
    + * this program; if not, write to the Free Software Foundation, Inc., 59
    + * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
    + */
    +
    +#include
    +
    +#include "atl1e.h"
    +
    +/* This is the only thing that needs to be changed to adjust the
    + * maximum number of ports that the driver can manage.
    + */
    +
    +#define ATL1E_MAX_NIC 32
    +
    +#define OPTION_UNSET -1
    +#define OPTION_DISABLED 0
    +#define OPTION_ENABLED 1
    +
    +/* All parameters are treated the same, as an integer array of values.
    + * This macro just reduces the need to repeat the same declaration code
    + * over and over (plus this helps to avoid typo bugs).
    + */
    +#define ATL1E_PARAM_INIT { [0 ... ATL1E_MAX_NIC] = OPTION_UNSET }
    +
    +#define ATL1E_PARAM(x, desc) \
    + static int __devinitdata x[ATL1E_MAX_NIC + 1] = ATL1E_PARAM_INIT; \
    + static int num_##x; \
    + module_param_array_named(x, x, int, &num_##x, 0); \
    + MODULE_PARM_DESC(x, desc);
    +
    +/* Transmit Memory count
    + *
    + * Valid Range: 64-2048
    + *
    + * Default Value: 128
    + */
    +#define ATL1E_MIN_TX_DESC_CNT 32
    +#define ATL1E_MAX_TX_DESC_CNT 1020
    +#define ATL1E_DEFAULT_TX_DESC_CNT 128
    +ATL1E_PARAM(tx_desc_cnt, "Transmit description count");
    +
    +/* Receive Memory Block Count
    + *
    + * Valid Range: 16-512
    + *
    + * Default Value: 128
    + */
    +#define ATL1E_MIN_RX_MEM_SIZE 8 /* 8KB */
    +#define ATL1E_MAX_RX_MEM_SIZE 1024 /* 1MB */
    +#define ATL1E_DEFAULT_RX_MEM_SIZE 256 /* 128KB */
    +ATL1E_PARAM(rx_mem_size, "memory size of rx buffer(KB)");
    +
    +/* User Specified MediaType Override
    + *
    + * Valid Range: 0-5
    + * - 0 - auto-negotiate at all supported speeds
    + * - 1 - only link at 100Mbps Full Duplex
    + * - 2 - only link at 100Mbps Half Duplex
    + * - 3 - only link at 10Mbps Full Duplex
    + * - 4 - only link at 10Mbps Half Duplex
    + * Default Value: 0
    + */
    +
    +ATL1E_PARAM(media_type, "MediaType Select");
    +
    +/* Interrupt Moderate Timer in units of 2 us
    + *
    + * Valid Range: 10-65535
    + *
    + * Default Value: 45000(90ms)
    + */
    +#define INT_MOD_DEFAULT_CNT 100 /* 200us */
    +#define INT_MOD_MAX_CNT 65000
    +#define INT_MOD_MIN_CNT 50
    +ATL1E_PARAM(int_mod_timer, "Interrupt Moderator Timer");
    +
    +#define AUTONEG_ADV_DEFAULT 0x2F
    +#define AUTONEG_ADV_MASK 0x2F
    +#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL
    +
    +#define FLASH_VENDOR_DEFAULT 0
    +#define FLASH_VENDOR_MIN 0
    +#define FLASH_VENDOR_MAX 2
    +
    +struct atl1e_option {
    + enum { enable_option, range_option, list_option } type;
    + char *name;
    + char *err;
    + int def;
    + union {
    + struct { /* range_option info */
    + int min;
    + int max;
    + } r;
    + struct { /* list_option info */
    + int nr;
    + struct atl1e_opt_list { int i; char *str; } *p;
    + } l;
    + } arg;
    +};
    +
    +static int __devinit atl1e_validate_option(int *value, struct atl1e_option *opt, struct pci_dev *pdev)
    +{
    + if (*value == OPTION_UNSET) {
    + *value = opt->def;
    + return 0;
    + }
    +
    + switch (opt->type) {
    + case enable_option:
    + switch (*value) {
    + case OPTION_ENABLED:
    + dev_info(&pdev->dev, "%s Enabled\n", opt->name);
    + return 0;
    + case OPTION_DISABLED:
    + dev_info(&pdev->dev, "%s Disabled\n", opt->name);
    + return 0;
    + }
    + break;
    + case range_option:
    + if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
    + dev_info(&pdev->dev, "%s set to %i\n", opt->name, *value);
    + return 0;
    + }
    + break;
    + case list_option:{
    + int i;
    + struct atl1e_opt_list *ent;
    +
    + for (i = 0; i < opt->arg.l.nr; i++) {
    + ent = &opt->arg.l.p[i];
    + if (*value == ent->i) {
    + if (ent->str[0] != '\0')
    + dev_info(&pdev->dev, "%s\n",
    + ent->str);
    + return 0;
    + }
    + }
    + break;
    + }
    + default:
    + BUG();
    + }
    +
    + dev_info(&pdev->dev, "Invalid %s specified (%i) %s\n",
    + opt->name, *value, opt->err);
    + *value = opt->def;
    + return -1;
    +}
    +
    +/*
    + * atl1e_check_options - Range Checking for Command Line Parameters
    + * @adapter: board private structure
    + *
    + * This routine checks all command line parameters for valid user
    + * input. If an invalid value is given, or if no user specified
    + * value exists, a default value is used. The final value is stored
    + * in a variable in the adapter structure.
    + */
    +void __devinit atl1e_check_options(struct atl1e_adapter *adapter)
    +{
    + struct pci_dev *pdev = adapter->pdev;
    + int bd = adapter->bd_number;
    + if (bd >= ATL1E_MAX_NIC) {
    + dev_notice(&pdev->dev, "no configuration for board #%i\n", bd);
    + dev_notice(&pdev->dev, "Using defaults for all values\n");
    + }
    +
    + { /* Transmit Ring Size */
    + struct atl1e_option opt = {
    + .type = range_option,
    + .name = "Transmit Ddescription Count",
    + .err = "using default of "
    + __MODULE_STRING(ATL1E_DEFAULT_TX_DESC_CNT),
    + .def = ATL1E_DEFAULT_TX_DESC_CNT,
    + .arg = { .r = { .min = ATL1E_MIN_TX_DESC_CNT,
    + .max = ATL1E_MAX_TX_DESC_CNT} }
    + };
    + int val;
    + if (num_tx_desc_cnt > bd) {
    + val = tx_desc_cnt[bd];
    + atl1e_validate_option(&val, &opt, pdev);
    + adapter->tx_ring.count = (u16) val & 0xFFFC;
    + } else
    + adapter->tx_ring.count = (u16)opt.def;
    + }
    +
    + { /* Receive Memory Block Count */
    + struct atl1e_option opt = {
    + .type = range_option,
    + .name = "Memory size of rx buffer(KB)",
    + .err = "using default of "
    + __MODULE_STRING(ATL1E_DEFAULT_RX_MEM_SIZE),
    + .def = ATL1E_DEFAULT_RX_MEM_SIZE,
    + .arg = { .r = { .min = ATL1E_MIN_RX_MEM_SIZE,
    + .max = ATL1E_MAX_RX_MEM_SIZE} }
    + };
    + int val;
    + if (num_rx_mem_size > bd) {
    + val = rx_mem_size[bd];
    + atl1e_validate_option(&val, &opt, pdev);
    + adapter->rx_ring.page_size = (u32)val * 1024;
    + } else {
    + adapter->rx_ring.page_size = (u32)opt.def * 1024;
    + }
    + }
    +
    + { /* Interrupt Moderate Timer */
    + struct atl1e_option opt = {
    + .type = range_option,
    + .name = "Interrupt Moderate Timer",
    + .err = "using default of "
    + __MODULE_STRING(INT_MOD_DEFAULT_CNT),
    + .def = INT_MOD_DEFAULT_CNT,
    + .arg = { .r = { .min = INT_MOD_MIN_CNT,
    + .max = INT_MOD_MAX_CNT} }
    + } ;
    + int val;
    + if (num_int_mod_timer > bd) {
    + val = int_mod_timer[bd];
    + atl1e_validate_option(&val, &opt, pdev);
    + adapter->hw.imt = (u16) val;
    + } else
    + adapter->hw.imt = (u16)(opt.def);
    + }
    +
    + { /* MediaType */
    + struct atl1e_option opt = {
    + .type = range_option,
    + .name = "Speed/Duplex Selection",
    + .err = "using default of "
    + __MODULE_STRING(MEDIA_TYPE_AUTO_SENSOR),
    + .def = MEDIA_TYPE_AUTO_SENSOR,
    + .arg = { .r = { .min = MEDIA_TYPE_AUTO_SENSOR,
    + .max = MEDIA_TYPE_10M_HALF} }
    + } ;
    + int val;
    + if (num_media_type > bd) {
    + val = media_type[bd];
    + atl1e_validate_option(&val, &opt, pdev);
    + adapter->hw.media_type = (u16) val;
    + } else
    + adapter->hw.media_type = (u16)(opt.def);
    +
    + }
    +}

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  2. Re: [PATCH net-next] atl1e: Atheros L1E Gigabit Ethernet driver

    jie.yang@atheros.com wrote:
    > From: Jie Yang
    >
    > Full patch for the Atheros L1E Gigabit Ethernet driver.
    > Supportring AR8121, AR8113 and AR8114
    >
    > Signed-off-by: Jie Yang
    > ---
    > update on comments:
    > 1) Remove dup MACRO already defined in linux/ethtool.h
    > 2) Remove pci_using_64 logic for the reason as atl1
    >


    applied


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+ Reply to Thread