Re: [PATCH] atl1c:Atheros L1C Gigabit Ethernet driver

From: Jay Cliburn
Date: Tue Feb 10 2009 - 20:19:00 EST

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Hello Jie,

Net driver stuff goes to Dave Miller now, not Jeff Garzik.

On Mon, 9 Feb 2009 14:34:31 +0800
<jie.yang@xxxxxxxxxxx> wrote:

> From: Jie Yang <jie.yang@xxxxxxxxxxx>
>
> Supporting AR8131, and AR8132.
>
> Signed-off-by: Jie Yang <jie.yang@xxxxxxxxxxx>
> ---
> diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
> index 62bc022..cdb8c46 100644
> --- a/drivers/net/Kconfig
> +++ b/drivers/net/Kconfig
> @@ -2350,6 +2350,17 @@ config ATL1E
> To compile this driver as a module, choose M here. The module
> will be called atl1e.
>
> +config ATL1C
> + tristate "Atheros L1C Gigabit Ethernet support (EXPERIMENTAL)"
> + depends on PCI && EXPERIMENTAL
> + select CRC32
> + select MII
> + help
> + This driver supports the Atheros L1C gigabit ethernet adapter.
> +
> + To compile this driver as a module, choose M here. The module
> + will be called atl1c.
> +
> config JME
> tristate "JMicron(R) PCI-Express Gigabit Ethernet support"
> depends on PCI
> diff --git a/drivers/net/Makefile b/drivers/net/Makefile
> index ad87ba7..3f8cb31 100644
> --- a/drivers/net/Makefile
> +++ b/drivers/net/Makefile
> @@ -17,6 +17,7 @@ obj-$(CONFIG_BONDING) += bonding/
> obj-$(CONFIG_ATL1) += atlx/
> obj-$(CONFIG_ATL2) += atlx/
> obj-$(CONFIG_ATL1E) += atl1e/
> +obj-$(CONFIG_ATL1C) += atl1c/
> obj-$(CONFIG_GIANFAR) += gianfar_driver.o
> obj-$(CONFIG_TEHUTI) += tehuti.o
> obj-$(CONFIG_ENIC) += enic/
> diff --git a/drivers/net/atl1c/Makefile b/drivers/net/atl1c/Makefile
> new file mode 100644
> index 0000000..a2214a6
> --- /dev/null
> +++ b/drivers/net/atl1c/Makefile
> @@ -0,0 +1,2 @@
> +obj-$(CONFIG_ATL1C) += atl1c.o
> +atl1c-objs := atl1c_main.o atl1c_hw.o atl1c_ethtool.o atl1c_param.o
> diff --git a/drivers/net/atl1c/atl1c.h b/drivers/net/atl1c/atl1c.h
> new file mode 100644
> index 0000000..118c9a7
> --- /dev/null
> +++ b/drivers/net/atl1c/atl1c.h
> @@ -0,0 +1,643 @@
> +/*
> + * Copyright(c) 2008 - 2009 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 _ATL1C_H_
> +#define _ATL1C_H_
> +
> +#include <linux/version.h>
> +#include <linux/init.h>
> +#include <linux/types.h>
> +#include <linux/errno.h>
> +#include <linux/module.h>
> +#include <linux/pci.h>
> +#include <linux/netdevice.h>
> +#include <linux/etherdevice.h>
> +#include <linux/skbuff.h>
> +#include <linux/ioport.h>
> +#include <linux/slab.h>
> +#include <linux/list.h>
> +#include <linux/delay.h>
> +#include <linux/sched.h>
> +#include <linux/in.h>
> +#include <linux/ip.h>
> +#include <linux/ipv6.h>
> +#include <linux/udp.h>
> +#include <linux/mii.h>
> +#include <linux/io.h>
> +#include <linux/vmalloc.h>
> +#include <linux/pagemap.h>
> +#include <linux/tcp.h>
> +#include <linux/mii.h>
> +#include <linux/ethtool.h>
> +#include <linux/if_vlan.h>
> +#include <linux/workqueue.h>
> +#include <net/checksum.h>
> +#include <net/ip6_checksum.h>
> +
> +#include "atl1c_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 AT_VLAN_TO_TAG(_vlan, _tag) \
> + _tag = ((((_vlan) >> 8) & 0xF0) |\
> + (((_vlan) & 0xFF) << 8) |\
> + (((_vlan) & 0xF00) >> 8))
> +
> +#define AT_TAG_TO_VLAN(_tag, _vlan) \
> + _vlan = ((((_tag) >> 8) & 0xF) |\
> + (((_tag) & 0xF0) << 8) |\
> + (((_tag) & 0xF) >> 8))
> +
> +#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 AT_RX_BUF_SIZE 1536
> +#define MAX_JUMBO_FRAME_SIZE (9*1024)
> +#define MAX_TX_OFFLOAD_THRESH (9*1024)
> +
> +#define AT_MAX_RECEIVE_QUEUE 4
> +#define AT_DEF_RECEIVE_QUEUE 1
> +#define AT_MAX_TRANSMIT_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 5
> +#define AT_TWSI_EEPROM_TIMEOUT 100
> +#define AT_HW_MAX_IDLE_DELAY 10
> +#define AT_SUSPEND_LINK_TIMEOUT 28
> +
> +#define AT_ASPM_L0S_TIMER 6
> +#define AT_ASPM_L1_TIMER 12
> +
> +#define ATL1C_PCIE_L0S_L1_DISABLE 0x01
> +#define ATL1C_PCIE_PHY_RESET 0x02
> +
> +#define ATL1C_ASPM_L0s_ENABLE 0x0001
> +#define ATL1C_ASPM_L1_ENABLE 0x0002
> +
> +#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)
> +#define ATL1C_GET_DESC(R, i, type) (&(((type *)((R)->desc))[i]))
> +#define ATL1C_RFD_DESC(R, i) ATL1C_GET_DESC(R, i, struct atl1c_rx_free_desc)
> +#define ATL1C_TPD_DESC(R, i) ATL1C_GET_DESC(R, i, struct atl1c_tpd_desc)
> +#define ATL1C_RRD_DESC(R, i) ATL1C_GET_DESC(R, i, struct atl1c_recv_ret_status)
> +
> +/* tpd word 1 bit 0:7 General Checksum task offload */
> +#define TPD_L4HDR_OFFSET_MASK 0x00FF
> +#define TPD_L4HDR_OFFSET_SHIFT 0
> +
> +/* tpd word 1 bit 0:7 Large Send task offload (IPv4/IPV6) */
> +#define TPD_TCPHDR_OFFSET_MASK 0x00FF
> +#define TPD_TCPHDR_OFFSET_SHIFT 0
> +
> +/* tpd word 1 bit 0:7 Custom Checksum task offload */
> +#define TPD_PLOADOFFSET_MASK 0x00FF
> +#define TPD_PLOADOFFSET_SHIFT 0
> +
> +/* tpd word 1 bit 8:17 */
> +#define TPD_CCSUM_EN_MASK 0x0001
> +#define TPD_CCSUM_EN_SHIFT 8
> +#define TPD_IP_CSUM_MASK 0x0001
> +#define TPD_IP_CSUM_SHIFT 9
> +#define TPD_TCP_CSUM_MASK 0x0001
> +#define TPD_TCP_CSUM_SHIFT 10
> +#define TPD_UDP_CSUM_MASK 0x0001
> +#define TPD_UDP_CSUM_SHIFT 11
> +#define TPD_LSO_EN_MASK 0x0001 /* TCP Large Send Offload */
> +#define TPD_LSO_EN_SHIFT 12
> +#define TPD_LSO_VER_MASK 0x0001
> +#define TPD_LSO_VER_SHIFT 13 /* 0 : ipv4; 1 : ipv4/ipv6 */
> +#define TPD_CON_VTAG_MASK 0x0001
> +#define TPD_CON_VTAG_SHIFT 14
> +#define TPD_INS_VTAG_MASK 0x0001
> +#define TPD_INS_VTAG_SHIFT 15
> +#define TPD_IPV4_PACKET_MASK 0x0001 /* valid when LSO VER is 1 */
> +#define TPD_IPV4_PACKET_SHIFT 16
> +#define TPD_ETH_TYPE_MASK 0x0001
> +#define TPD_ETH_TYPE_SHIFT 17 /* 0 : 802.3 frame; 1 : Ethernet */
> +
> +/* tpd word 18:25 Custom Checksum task offload */
> +#define TPD_CCSUM_OFFSET_MASK 0x00FF
> +#define TPD_CCSUM_OFFSET_SHIFT 18
> +#define TPD_CCSUM_EPAD_MASK 0x0001
> +#define TPD_CCSUM_EPAD_SHIFT 30
> +
> +/* tpd word 18:30 Large Send task offload (IPv4/IPV6) */
> +#define TPD_MSS_MASK 0x1FFF
> +#define TPD_MSS_SHIFT 18
> +
> +#define TPD_EOP_MASK 0x0001
> +#define TPD_EOP_SHIFT 31
> +
> +struct atl1c_tpd_desc {
> + __le16 buffer_len; /* include 4-byte CRC */
> + u16 vlan_tag;
> + __le32 word1;
> + __le64 buffer_addr;
> +};
> +
> +struct atl1c_tpd_ext_desc {
> + u32 reservd_0;
> + __le32 word1;
> + __le32 pkt_len;
> + u32 reservd_1;
> +};
> +/* rrs word 0 bit 0:31 */
> +#define RRS_RX_CSUM_MASK 0xFFFF
> +#define RRS_RX_CSUM_SHIFT 0
> +#define RRS_RX_RFD_CNT_MASK 0x000F
> +#define RRS_RX_RFD_CNT_SHIFT 16
> +#define RRS_RX_RFD_INDEX_MASK 0x0FFF
> +#define RRS_RX_RFD_INDEX_SHIFT 20
> +
> +/* rrs flag bit 0:16 */
> +#define RRS_HEAD_LEN_MASK 0x00FF
> +#define RRS_HEAD_LEN_SHIFT 0
> +#define RRS_HDS_TYPE_MASK 0x0003
> +#define RRS_HDS_TYPE_SHIFT 8
> +#define RRS_CPU_NUM_MASK 0x0003
> +#define RRS_CPU_NUM_SHIFT 10
> +#define RRS_HASH_FLG_MASK 0x000F
> +#define RRS_HASH_FLG_SHIFT 12
> +
> +#define RRS_HDS_TYPE_HEAD 1
> +#define RRS_HDS_TYPE_DATA 2
> +
> +#define RRS_IS_NO_HDS_TYPE(flag) \
> + (((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK == 0)
> +
> +#define RRS_IS_HDS_HEAD(flag) \
> + (((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK == \
> + RRS_HDS_TYPE_HEAD)
> +
> +#define RRS_IS_HDS_DATA(flag) \
> + (((flag) >> (RRS_HDS_TYPE_SHIFT)) & RRS_HDS_TYPE_MASK == \
> + RRS_HDS_TYPE_DATA)
> +
> +/* rrs word 3 bit 0:31 */
> +#define RRS_PKT_SIZE_MASK 0x3FFF
> +#define RRS_PKT_SIZE_SHIFT 0
> +#define RRS_ERR_L4_CSUM_MASK 0x0001
> +#define RRS_ERR_L4_CSUM_SHIFT 14
> +#define RRS_ERR_IP_CSUM_MASK 0x0001
> +#define RRS_ERR_IP_CSUM_SHIFT 15
> +#define RRS_VLAN_INS_MASK 0x0001
> +#define RRS_VLAN_INS_SHIFT 16
> +#define RRS_PROT_ID_MASK 0x0007
> +#define RRS_PROT_ID_SHIFT 17
> +#define RRS_RX_ERR_SUM_MASK 0x0001
> +#define RRS_RX_ERR_SUM_SHIFT 20
> +#define RRS_RX_ERR_CRC_MASK 0x0001
> +#define RRS_RX_ERR_CRC_SHIFT 21
> +#define RRS_RX_ERR_FAE_MASK 0x0001
> +#define RRS_RX_ERR_FAE_SHIFT 22
> +#define RRS_RX_ERR_TRUNC_MASK 0x0001
> +#define RRS_RX_ERR_TRUNC_SHIFT 23
> +#define RRS_RX_ERR_RUNC_MASK 0x0001
> +#define RRS_RX_ERR_RUNC_SHIFT 24
> +#define RRS_RX_ERR_ICMP_MASK 0x0001
> +#define RRS_RX_ERR_ICMP_SHIFT 25
> +#define RRS_PACKET_BCAST_MASK 0x0001
> +#define RRS_PACKET_BCAST_SHIFT 26
> +#define RRS_PACKET_MCAST_MASK 0x0001
> +#define RRS_PACKET_MCAST_SHIFT 27
> +#define RRS_PACKET_TYPE_MASK 0x0001
> +#define RRS_PACKET_TYPE_SHIFT 28
> +#define RRS_FIFO_FULL_MASK 0x0001
> +#define RRS_FIFO_FULL_SHIFT 29
> +#define RRS_802_3_LEN_ERR_MASK 0x0001
> +#define RRS_802_3_LEN_ERR_SHIFT 30
> +#define RRS_RXD_UPDATED_MASK 0x0001
> +#define RRS_RXD_UPDATED_SHIFT 31
> +
> +#define RRS_ERR_L4_CSUM 0x00004000
> +#define RRS_ERR_IP_CSUM 0x00008000
> +#define RRS_VLAN_INS 0x00010000
> +#define RRS_RX_ERR_SUM 0x00100000
> +#define RRS_RX_ERR_CRC 0x00200000
> +#define RRS_802_3_LEN_ERR 0x40000000
> +#define RRS_RXD_UPDATED 0x80000000
> +
> +#define RRS_PACKET_TYPE_802_3 1
> +#define RRS_PACKET_TYPE_ETH 0
> +#define RRS_PACKET_IS_ETH(word) \
> + (((word) >> RRS_PACKET_TYPE_SHIFT) & RRS_PACKET_TYPE_MASK == \
> + RRS_PACKET_TYPE_ETH)
> +#define RRS_RXD_IS_VALID(word) \
> + ((((word) >> RRS_RXD_UPDATED_SHIFT) & RRS_RXD_UPDATED_MASK) == 1)
> +
> +#define RRS_PACKET_PROT_IS_IPV4_ONLY(word) \
> + ((((word) >> RRS_PROT_ID_SHIFT) & RRS_PROT_ID_MASK) == 1)
> +#define RRS_PACKET_PROT_IS_IPV6_ONLY(word) \
> + ((((word) >> RRS_PROT_ID_SHIFT) & RRS_PROT_ID_MASK) == 6)
> +
> +struct atl1c_recv_ret_status {
> + __le32 word0;
> + u32 rss_hash;
> + u16 vlan_tag;
> + u16 flag;
> + __le32 word3;
> +};
> +
> +/* RFD desciptor */
> +struct atl1c_rx_free_desc {
> + __le64 buffer_addr;
> +};
> +
> +/* DMA Order Settings */
> +enum atl1c_dma_order {
> + atl1c_dma_ord_in = 1,
> + atl1c_dma_ord_enh = 2,
> + atl1c_dma_ord_out = 4
> +};
> +
> +enum atl1c_dma_rcb {
> + atl1c_rcb_64 = 0,
> + atl1c_rcb_128 = 1
> +};
> +
> +enum atl1c_mac_speed {
> + atl1c_mac_speed_0 = 0,
> + atl1c_mac_speed_10_100 = 1,
> + atl1c_mac_speed_1000 = 2
> +};
> +
> +enum atl1c_dma_req_block {
> + atl1c_dma_req_128 = 0,
> + atl1c_dma_req_256 = 1,
> + atl1c_dma_req_512 = 2,
> + atl1c_dma_req_1024 = 3,
> + atl1c_dma_req_2048 = 4,
> + atl1c_dma_req_4096 = 5
> +};
> +
> +enum atl1c_rss_mode {
> + atl1c_rss_mode_disable = 0,
> + atl1c_rss_sig_que = 1,
> + atl1c_rss_mul_que_sig_int = 2,
> + atl1c_rss_mul_que_mul_int = 4,
> +};
> +
> +enum atl1c_rss_type {
> + atl1c_rss_disable = 0,
> + atl1c_rss_ipv4 = 1,
> + atl1c_rss_ipv4_tcp = 2,
> + atl1c_rss_ipv6 = 4,
> + atl1c_rss_ipv6_tcp = 8
> +};
> +
> +enum atl1c_nic_type {
> + athr_l1c = 0,
> + athr_l2c = 1,
> +};
> +
> +enum atl1c_trans_queue {
> + atl1c_trans_normal = 0,
> + atl1c_trans_high = 1
> +};
> +
> +struct atl1c_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 atl1c_hw {
> + u8 __iomem *hw_addr; /* inner register address */
> + struct atl1c_adapter *adapter;
> + enum atl1c_nic_type nic_type;
> + enum atl1c_dma_order dma_order;
> + enum atl1c_dma_rcb rcb_value;
> + enum atl1c_dma_req_block dmar_block;
> + enum atl1c_dma_req_block dmaw_block;
> +
> + u16 device_id;
> + u16 vendor_id;
> + u16 subsystem_id;
> + u16 subsystem_vendor_id;
> + u8 revision_id;
> +
> + u32 intr_mask;
> + u8 dmaw_dly_cnt;
> + u8 dmar_dly_cnt;
> +
> + u8 preamble_len;
> + u16 max_frame_size;
> + u16 min_frame_size;
> +
> + enum atl1c_mac_speed mac_speed;
> + bool mac_duplex;
> + bool hibernate;
> + 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
> +#define ADVERTISE_DEFAULT (ADVERTISE_10_HALF |\
> + ADVERTISE_10_FULL |\
> + ADVERTISE_100_HALF |\
> + ADVERTISE_100_FULL |\
> + ADVERTISE_1000_FULL)
> + u16 mii_autoneg_adv_reg;
> + u16 mii_1000t_ctrl_reg;
> +
> + u16 tx_imt; /* TX Interrupt Moderator timer ( 2us resolution) */
> + u16 rx_imt; /* RX Interrupt Moderator timer ( 2us resolution) */
> + u16 ict; /* Interrupt Clear timer (2us resolution) */
> + u16 ctrl_flags;
> +#define ATL1C_INTR_CLEAR_ON_READ 0x0001
> +#define ATL1C_INTR_MODRT_ENABLE 0x0002
> +#define ATL1C_CMB_ENABLE 0x0004
> +#define ATL1C_SMB_ENABLE 0x0010
> +#define ATL1C_TXQ_MODE_ENHANCE 0x0020
> +#define ATL1C_RX_IPV6_CHKSUM 0x0040
> +#define ATL1C_ASPM_L0S_SUPPORT 0x0080
> +#define ATL1C_ASPM_L1_SUPPORT 0x0100
> +#define ATL1C_ASPM_CTRL_MON 0x0200
> +#define ATL1C_HIB_DISABLE 0x0400
> +#define ATL1C_LINK_CAP_1000M 0x0800
> +#define ATL1C_FPGA_VERSION 0x8000
> + u16 cmb_tpd;
> + u16 cmb_rrd;
> + u16 cmb_rx_timer; /* 2us resolution */
> + u16 cmb_tx_timer;
> + u32 smb_timer;
> +
> + u16 rrd_thresh; /* Threshold of number of RRD produced to trigger
> + interrupt request */
> + u16 tpd_thresh;
> + u8 tpd_burst; /* Number of TPD to prefetch in cache-aligned burst. */
> + u8 rfd_burst;
> + enum atl1c_rss_type rss_type;
> + enum atl1c_rss_mode rss_mode;
> + u8 rss_hash_bits;
> + u32 base_cpu;
> + u32 indirect_tab;
> + u8 mac_addr[ETH_ALEN];
> + u8 perm_mac_addr[ETH_ALEN];
> +
> + bool phy_configured;
> + bool re_autoneg;
> + bool emi_ca;
> +};
> +
> +/*
> + * atl1c_ring_header represents a single, contiguous block of DMA space
> + * mapped for the three descriptor rings (tpd, rfd, rrd) and the two
> + * message blocks (cmb, smb) described below
> + */
> +struct atl1c_ring_header {
> + void *desc; /* virtual address */
> + dma_addr_t dma; /* physical address*/
> + unsigned int size; /* length in bytes */
> +};
> +
> +/*
> + * atl1c_buffer is wrapper around a pointer to a socket buffer
> + * so a DMA handle can be stored along with the skb
> + */
> +struct atl1c_buffer {
> + struct sk_buff *skb; /* socket buffer */
> + u16 length; /* rx buffer length */
> + u16 state; /* state of buffer */
> +#define ATL1_BUFFER_FREE 0
> +#define ATL1_BUFFER_BUSY 1
> + dma_addr_t dma;
> +};
> +
> +/* transimit packet descriptor (tpd) ring */
> +struct atl1c_tpd_ring {
> + void *desc; /* descriptor ring virtual address */
> + dma_addr_t dma; /* descriptor ring physical address */
> + u16 size; /* descriptor ring length in bytes */
> + u16 count; /* number of descriptors in the ring */
> + u16 next_to_use; /* this is protectd by adapter->tx_lock */
> + atomic_t next_to_clean;
> + struct atl1c_buffer *buffer_info;
> +};
> +
> +/* receive free descriptor (rfd) ring */
> +struct atl1c_rfd_ring {
> + void *desc; /* descriptor ring virtual address */
> + dma_addr_t dma; /* descriptor ring physical address */
> + u16 size; /* descriptor ring length in bytes */
> + u16 count; /* number of descriptors in the ring */
> + u16 next_to_use;
> + u16 next_to_clean;
> + struct atl1c_buffer *buffer_info;
> +};
> +
> +/* receive return desciptor (rrd) ring */
> +struct atl1c_rrd_ring {
> + void *desc; /* descriptor ring virtual address */
> + dma_addr_t dma; /* descriptor ring physical address */
> + u16 size; /* descriptor ring length in bytes */
> + u16 count; /* number of descriptors in the ring */
> + u16 next_to_use;
> + u16 next_to_clean;
> +};
> +
> +struct atl1c_cmb {
> + void *cmb;
> + dma_addr_t dma;
> +};
> +
> +struct atl1c_smb {
> + void *smb;
> + dma_addr_t dma;
> +};
> +
> +/* board specific private data structure */
> +struct atl1c_adapter {
> + struct net_device *netdev;
> + struct pci_dev *pdev;
> + struct vlan_group *vlgrp;
> + struct napi_struct napi;
> + struct atl1c_hw hw;
> + struct atl1c_hw_stats hw_stats;
> + struct net_device_stats net_stats;
> + struct mii_if_info mii; /* MII interface info */
> + u16 rx_buffer_len;
> +
> + unsigned long flags;
> +#define __AT_TESTING 0x0001
> +#define __AT_RESETTING 0x0002
> +#define __AT_DOWN 0x0003
> +
> + 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 */
> + struct atl1c_ring_header ring_header;
> + struct atl1c_tpd_ring tpd_ring[AT_MAX_TRANSMIT_QUEUE];
> + struct atl1c_rfd_ring rfd_ring[AT_MAX_RECEIVE_QUEUE];
> + struct atl1c_rrd_ring rrd_ring[AT_MAX_RECEIVE_QUEUE];
> + struct atl1c_cmb cmb;
> + struct atl1c_smb smb;
> + int num_rx_queues;
> + u32 bd_number; /* board number;*/
> +};
> +
> +#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, pdata) do { \
> + if (unlikely((a)->hibernate)) { \
> + readl((a)->hw_addr + reg); \
> + *(u32 *)pdata = readl((a)->hw_addr + reg); \
> + } else { \
> + *(u32 *)pdata = readl((a)->hw_addr + reg); \
> + } \
> + } while (0)
> +
> +#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 atl1c_driver_name[];
> +extern char atl1c_driver_version[];
> +
> +extern void atl1c_check_options(struct atl1c_adapter *adapter);
> +extern int atl1c_up(struct atl1c_adapter *adapter);
> +extern void atl1c_down(struct atl1c_adapter *adapter);
> +extern void atl1c_reinit_locked(struct atl1c_adapter *adapter);
> +extern s32 atl1c_reset_hw(struct atl1c_hw *hw);
> +extern void atl1c_set_ethtool_ops(struct net_device *netdev);
> +#endif /* _ATL1C_H_ */
> diff --git a/drivers/net/atl1c/atl1c_ethtool.c b/drivers/net/atl1c/atl1c_ethtool.c
> new file mode 100644
> index 0000000..66a9916
> --- /dev/null
> +++ b/drivers/net/atl1c/atl1c_ethtool.c
> @@ -0,0 +1,379 @@
> +/*
> + * Copyright(c) 2009 - 2009 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 <linux/netdevice.h>
> +#include <linux/ethtool.h>
> +
> +#include "atl1c.h"
> +
> +static int atl1c_get_settings(struct net_device *netdev,
> + struct ethtool_cmd *ecmd)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + struct atl1c_hw *hw = &adapter->hw;
> +
> + ecmd->supported = (SUPPORTED_10baseT_Half |
> + SUPPORTED_10baseT_Full |
> + SUPPORTED_100baseT_Half |
> + SUPPORTED_100baseT_Full |
> + SUPPORTED_Autoneg |
> + SUPPORTED_TP);
> + if (hw->ctrl_flags & ATL1C_LINK_CAP_1000M)
> + 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 atl1c_set_settings(struct net_device *netdev,
> + struct ethtool_cmd *ecmd)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + struct atl1c_hw *hw = &adapter->hw;
> + u16 autoneg_advertised;
> + while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
> + msleep(1);
> +
> + if (ecmd->autoneg == AUTONEG_ENABLE) {
> + autoneg_advertised = ADVERTISE_DEFAULT;
> + } else {
> + if (ecmd->speed == SPEED_1000) {
> + if (ecmd->duplex != DUPLEX_FULL) {
> + printk(KERN_WARNING"1000M half is invalid\n");

Consider converting all printks to dev_*...

> + clear_bit(__AT_RESETTING, &adapter->flags);
> + return -EINVAL;
> + }
> + autoneg_advertised = ADVERTISE_1000_FULL;
> + } else if (ecmd->speed == SPEED_100) {
> + if (ecmd->duplex == DUPLEX_FULL)
> + autoneg_advertised = ADVERTISE_100_FULL;
> + else
> + autoneg_advertised = ADVERTISE_100_HALF;
> + } else {
> + if (ecmd->duplex == DUPLEX_FULL)
> + autoneg_advertised = ADVERTISE_10_FULL;
> + else
> + autoneg_advertised = ADVERTISE_10_HALF;
> + }
> + }
> +
> + if (hw->autoneg_advertised != autoneg_advertised) {
> + hw->autoneg_advertised = autoneg_advertised;
> + if (atl1c_restart_autoneg(hw) != 0) {
> + printk(KERN_WARNING
> + "ethtool speed/duplex setting failed\n");
> + clear_bit(__AT_RESETTING, &adapter->flags);
> + return -EINVAL;
> + }
> + }
> + clear_bit(__AT_RESETTING, &adapter->flags);
> + return 0;
> +}
> +
> +static u32 atl1c_get_tx_csum(struct net_device *netdev)
> +{
> + return (netdev->features & NETIF_F_HW_CSUM) != 0;
> +}
> +
> +static u32 atl1c_get_msglevel(struct net_device *netdev)
> +{
> +#ifdef DBG
> + return 1;
> +#else
> + return 0;
> +#endif
> +}
> +
> +static void atl1c_set_msglevel(struct net_device *netdev, u32 data)
> +{
> +}
> +
> +static int atl1c_get_regs_len(struct net_device *netdev)
> +{
> + return AT_REGS_LEN *sizeof(u32);
> +}
> +
> +static void atl1c_get_regs(struct net_device *netdev,
> + struct ethtool_regs *regs, void *p)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + struct atl1c_hw *hw = &adapter->hw;
> + u32 *regs_buff = p;
> + u16 phy_data;
> +
> + memset(p, 0, (AT_REGS_LEN *sizeof(u32)));
> +
> + regs->version = 0;
> + AT_READ_REG(hw, REG_VPD_CAP, p++);
> + AT_READ_REG(hw, REG_PM_CTRL, p++);
> + AT_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL, p++);
> + AT_READ_REG(hw, REG_TWSI_CTRL, p++);
> + AT_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL, p++);
> + AT_READ_REG(hw, REG_MASTER_CTRL, p++);
> + AT_READ_REG(hw, REG_MANUAL_TIMER_INIT, p++);
> + AT_READ_REG(hw, REG_IRQ_MODRT_TIMER_INIT, p++);
> + AT_READ_REG(hw, REG_GPHY_CTRL, p++);
> + AT_READ_REG(hw, REG_LINK_CTRL, p++);
> + AT_READ_REG(hw, REG_IDLE_STATUS, p++);
> + AT_READ_REG(hw, REG_MDIO_CTRL, p++);
> + AT_READ_REG(hw, REG_SERDES_LOCK, p++);
> + AT_READ_REG(hw, REG_MAC_CTRL, p++);
> + AT_READ_REG(hw, REG_MAC_IPG_IFG, p++);
> + AT_READ_REG(hw, REG_MAC_STA_ADDR, p++);
> + AT_READ_REG(hw, REG_MAC_STA_ADDR+4, p++);
> + AT_READ_REG(hw, REG_RX_HASH_TABLE, p++);
> + AT_READ_REG(hw, REG_RX_HASH_TABLE+4, p++);
> + AT_READ_REG(hw, REG_RXQ_CTRL, p++);
> + AT_READ_REG(hw, REG_TXQ_CTRL, p++);
> + AT_READ_REG(hw, REG_MTU, p++);
> + AT_READ_REG(hw, REG_WOL_CTRL, p++);
> +
> + atl1c_read_phy_reg(hw, MII_BMCR, &phy_data);
> + regs_buff[73] = (u32) phy_data;
> + atl1c_read_phy_reg(hw, MII_BMSR, &phy_data);
> + regs_buff[74] = (u32) phy_data;
> +}
> +
> +static int atl1c_get_eeprom_len(struct net_device *netdev)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> +
> + if (atl1c_check_eeprom_exist(&adapter->hw))
> + return AT_EEPROM_LEN;
> + else
> + return 0;
> +}
> +
> +static int atl1c_get_eeprom(struct net_device *netdev,
> + struct ethtool_eeprom *eeprom, u8 *bytes)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + struct atl1c_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 (!atl1c_check_eeprom_exist(hw)) /* not exist */
> + return -EINVAL;
> +
> + eeprom->magic = adapter->pdev->vendor |
> + (adapter->pdev->device << 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 (!atl1c_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;
> + return 0;
> +}
> +
> +static int atl1c_set_eeprom(struct net_device *netdev,
> + struct ethtool_eeprom *eeprom, u8 *bytes)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + struct atl1c_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 != (adapter->pdev->vendor |
> + (adapter->pdev->device << 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 (!atl1c_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 (!atl1c_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 (!atl1c_write_eeprom(hw, ((first_dword + i) * 4),
> + eeprom_buff[i])) {
> + ret_val = -EIO;
> + goto out;
> + }
> + }
> +out:
> + kfree(eeprom_buff);
> + return ret_val;
> + return 0;
> +}
> +
> +static void atl1c_get_drvinfo(struct net_device *netdev,
> + struct ethtool_drvinfo *drvinfo)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> +
> + strncpy(drvinfo->driver, atl1c_driver_name, 32);
> + strncpy(drvinfo->version, atl1c_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 = atl1c_get_regs_len(netdev);
> + drvinfo->eedump_len = atl1c_get_eeprom_len(netdev);
> +}
> +
> +static void atl1c_get_wol(struct net_device *netdev,
> + struct ethtool_wolinfo *wol)
> +{
> + struct atl1c_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 atl1c_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
> +{
> + struct atl1c_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 atl1c_nway_reset(struct net_device *netdev)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + if (netif_running(netdev))
> + atl1c_reinit_locked(adapter);
> + return 0;
> +}
> +
> +static struct ethtool_ops atl1c_ethtool_ops = {
> + .get_settings = atl1c_get_settings,
> + .set_settings = atl1c_set_settings,
> + .get_drvinfo = atl1c_get_drvinfo,
> + .get_regs_len = atl1c_get_regs_len,
> + .get_regs = atl1c_get_regs,
> + .get_wol = atl1c_get_wol,
> + .set_wol = atl1c_set_wol,
> + .get_msglevel = atl1c_get_msglevel,
> + .set_msglevel = atl1c_set_msglevel,
> + .nway_reset = atl1c_nway_reset,
> + .get_link = ethtool_op_get_link,
> + .get_eeprom_len = atl1c_get_eeprom_len,
> + .get_eeprom = atl1c_get_eeprom,
> + .set_eeprom = atl1c_set_eeprom,
> + .get_tx_csum = atl1c_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 atl1c_set_ethtool_ops(struct net_device *netdev)
> +{
> + SET_ETHTOOL_OPS(netdev, &atl1c_ethtool_ops);
> +}
> diff --git a/drivers/net/atl1c/atl1c_hw.c b/drivers/net/atl1c/atl1c_hw.c
> new file mode 100644
> index 0000000..0d3edbf
> --- /dev/null
> +++ b/drivers/net/atl1c/atl1c_hw.c
> @@ -0,0 +1,547 @@
> +/*
> + * 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 <linux/pci.h>
> +#include <linux/delay.h>
> +#include <linux/mii.h>
> +#include <linux/crc32.h>
> +
> +#include "atl1c.h"
> +
> +/*
> + * check_eeprom_exist
> + * return 1 if eeprom exist
> + */
> +int atl1c_check_eeprom_exist(struct atl1c_hw *hw)
> +{
> + u32 data;
> +
> + AT_READ_REG(hw, REG_TWSI_DEBUG, &data);
> + if (data & TWSI_DEBUG_DEV_EXIST)
> + return 1;
> +
> + return 0;
> +}
> +
> +void atl1c_hw_set_mac_addr(struct atl1c_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);
> +}
> +
> +/*
> + * atl1c_get_permanent_address
> + * return 0 if get valid mac address,
> + */
> +static int atl1c_get_permanent_address(struct atl1c_hw *hw)
> +{
> + u32 addr[2];
> + u32 i;
> + u32 otp_ctrl_data;
> + u32 twsi_ctrl_data;
> + u8 eth_addr[ETH_ALEN];
> +
> + /* init */
> + addr[0] = addr[1] = 0;
> + AT_READ_REG(hw, REG_OTP_CTRL, &otp_ctrl_data);
> + if (atl1c_check_eeprom_exist(hw)) {
> + /* Enable OTP CLK */
> + if (!(otp_ctrl_data & OTP_CTRL_CLK_EN)) {
> + otp_ctrl_data |= OTP_CTRL_CLK_EN;
> + AT_WRITE_REG(hw, REG_OTP_CTRL, otp_ctrl_data);
> + msleep(1);
> + }
> +
> + AT_READ_REG(hw, REG_TWSI_CTRL, &twsi_ctrl_data);
> + 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);
> + AT_READ_REG(hw, REG_TWSI_CTRL, &twsi_ctrl_data);
> + if ((twsi_ctrl_data & TWSI_CTRL_SW_LDSTART) == 0)
> + break;
> + }
> + if (i >= AT_TWSI_EEPROM_TIMEOUT)
> + return AT_ERR_TIMEOUT;
> + }
> + /* Disable OTP_CLK */
> + if (otp_ctrl_data & OTP_CTRL_CLK_EN) {
> + otp_ctrl_data &= ~OTP_CTRL_CLK_EN;
> + AT_WRITE_REG(hw, REG_OTP_CTRL, otp_ctrl_data);
> + msleep(1);
> + }
> +
> + /* maybe MAC-address is from BIOS */
> + AT_READ_REG(hw, REG_MAC_STA_ADDR, &addr[0]);
> + AT_READ_REG(hw, REG_MAC_STA_ADDR + 4, &addr[1]);
> + *(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 atl1c_write_eeprom(struct atl1c_hw *hw, u32 offset, u32 value)
> +{
> + return true;
> +}

Do-nothing function. Remove?

> +
> +bool atl1c_read_eeprom(struct atl1c_hw *hw, u32 offset, u32 *p_value)
> +{
> + int i;
> + int ret = false;
> + u32 otp_ctrl_data;
> + u32 control;
> + u32 data;
> +
> + if (offset & 3)
> + return ret; /* address do not align */
> +
> + AT_READ_REG(hw, REG_OTP_CTRL, &otp_ctrl_data);
> + if (!(otp_ctrl_data & OTP_CTRL_CLK_EN))
> + AT_WRITE_REG(hw, REG_OTP_CTRL,
> + (otp_ctrl_data | OTP_CTRL_CLK_EN));
> +
> + AT_WRITE_REG(hw, REG_EEPROM_DATA_LO, 0);
> + control = (offset & EEPROM_CTRL_ADDR_MASK) << EEPROM_CTRL_ADDR_SHIFT;
> + AT_WRITE_REG(hw, REG_EEPROM_CTRL, control);
> +
> + for (i = 0; i < 10; i++) {
> + udelay(100);
> + AT_READ_REG(hw, REG_EEPROM_CTRL, &control);
> + if (control & EEPROM_CTRL_RW)
> + break;
> + }
> + if (control & EEPROM_CTRL_RW) {
> + AT_READ_REG(hw, REG_EEPROM_CTRL, &data);
> + AT_READ_REG(hw, REG_EEPROM_DATA_LO, p_value);
> + data = data & 0xFFFF;
> + *p_value = swab32((data << 16) | (*p_value >> 16));
> + ret = true;
> + }
> + if (!(otp_ctrl_data & OTP_CTRL_CLK_EN))
> + AT_WRITE_REG(hw, REG_OTP_CTRL, otp_ctrl_data);
> +
> + return ret;
> +}
> +/*
> + * Reads the adapter's MAC address from the EEPROM
> + *
> + * hw - Struct containing variables accessed by shared code
> + */
> +int atl1c_read_mac_addr(struct atl1c_hw *hw)
> +{
> + int err = 0;
> +
> + err = atl1c_get_permanent_address(hw);
> + if (err) {
> + hw->perm_mac_addr[0] = 0x00;
> + hw->perm_mac_addr[1] = 0x13;
> + hw->perm_mac_addr[2] = 0x74;
> + hw->perm_mac_addr[3] = 0x00;
> + hw->perm_mac_addr[4] = 0x5c;
> + hw->perm_mac_addr[5] = 0x38;
> + }

Better to use random_ether_addr() here.

> +
> + memcpy(hw->mac_addr, hw->perm_mac_addr, sizeof(hw->perm_mac_addr));
> + return 0;
> +}
> +
> +/*
> + * atl1c_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 atl1c_hash_mc_addr(struct atl1c_hw *hw, u8 *mc_addr)
> +{
> + u32 crc32;
> + u32 value = 0;
> + int i;
> +
> + crc32 = ether_crc_le(6, mc_addr);
> + 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 atl1c_hash_set(struct atl1c_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

Looks like the upper bit, not the upper 7 bits.

> + * 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 atl1c_read_phy_reg(struct atl1c_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);
> + AT_READ_REG(hw, REG_MDIO_CTRL, &val);
> + 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 atl1c_write_phy_reg(struct atl1c_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);
> + AT_READ_REG(hw, REG_MDIO_CTRL, &val);
> + if (!(val & (MDIO_START | MDIO_BUSY)))
> + break;
> + wmb();
> + }
> +
> + if (!(val & (MDIO_START | MDIO_BUSY)))
> + return 0;
> +
> + return AT_ERR_PHY;
> +}
> +
> +/*
> + * Configures PHY autoneg and flow control advertisement settings
> + *
> + * hw - Struct containing variables accessed by shared code
> + */
> +static int atl1c_phy_setup_adv(struct atl1c_hw *hw)
> +{
> + u16 mii_adv_data = ADVERTISE_DEFAULT_CAP & ~ADVERTISE_SPEED_MASK;
> + u16 mii_giga_ctrl_data = GIGA_CR_1000T_DEFAULT_CAP &
> + ~GIGA_CR_1000T_SPEED_MASK;
> +
> + if (hw->autoneg_advertised & ADVERTISE_10_HALF)
> + mii_adv_data |= ADVERTISE_10T_HD_CAPS;
> + if (hw->autoneg_advertised & ADVERTISE_10_FULL)
> + mii_adv_data |= ADVERTISE_10T_FD_CAPS;
> + if (hw->autoneg_advertised & ADVERTISE_100_HALF)
> + mii_adv_data |= ADVERTISE_100TX_HD_CAPS;
> + if (hw->autoneg_advertised & ADVERTISE_100_FULL)
> + mii_adv_data |= ADVERTISE_100TX_FD_CAPS;
> +
> + if (hw->ctrl_flags & ATL1C_LINK_CAP_1000M) {
> + if (hw->autoneg_advertised & ADVERTISE_1000_HALF)
> + mii_giga_ctrl_data |= GIGA_CR_1000T_HD_CAPS;
> + if (hw->autoneg_advertised & ADVERTISE_1000_FULL)
> + mii_giga_ctrl_data |= GIGA_CR_1000T_FD_CAPS;
> + }
> +
> + if (atl1c_write_phy_reg(hw, MII_ADVERTISE, mii_adv_data) != 0 ||
> + atl1c_write_phy_reg(hw, MII_GIGA_CR, mii_giga_ctrl_data) != 0)
> + return AT_ERR_PHY_SPEED;
> + 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)
> + */
> +#if 0
> +int atl1c_phy_commit(struct atl1c_hw *hw)
> +{
> + struct atl1c_adapter *adapter = (struct atl1c_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 = atl1c_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;
> +}
> +#endif
> +
> +void atl1c_phy_disable(struct atl1c_hw *hw)
> +{
> + AT_WRITE_REGW(hw, REG_GPHY_CTRL,
> + GPHY_CTRL_PW_WOL_DIS | GPHY_CTRL_EXT_RESET);
> +}
> +
> +static void atl1c_phy_magic_data(struct atl1c_hw *hw)
> +{
> + u16 data;
> +
> + atl1c_write_phy_reg(hw, MII_DBG_ADDR, 0x12);
> + atl1c_write_phy_reg(hw, MII_DBG_DATA, 0x4C04);
> +
> + atl1c_write_phy_reg(hw, MII_DBG_ADDR, 0x05);
> + atl1c_write_phy_reg(hw, MII_DBG_DATA, 0x2C46);
> +
> + atl1c_write_phy_reg(hw, MII_DBG_ADDR, 0x36);
> + atl1c_write_phy_reg(hw, MII_DBG_DATA, 0xE12C);
> +
> + atl1c_write_phy_reg(hw, MII_DBG_ADDR, 0x04);
> + atl1c_write_phy_reg(hw, MII_DBG_DATA, 0x88BB);
> +
> + atl1c_write_phy_reg(hw, MII_DBG_ADDR, 0x00);
> + atl1c_write_phy_reg(hw, MII_DBG_DATA, 0x02EF);
> +
> + if (hw->ctrl_flags & ATL1C_HIB_DISABLE) {
> + atl1c_write_phy_reg(hw, MII_DBG_ADDR, 0x29);
> + if (atl1c_read_phy_reg(hw, MII_DBG_DATA, &data) != 0)
> + return;
> + data &= 0x7FFF;
> + atl1c_write_phy_reg(hw, MII_DBG_DATA, data);
> +
> + atl1c_write_phy_reg(hw, MII_DBG_ADDR, 0xB);
> + if (atl1c_read_phy_reg(hw, MII_DBG_DATA, &data) != 0)
> + return;
> + data &= 0x7FFF;
> + atl1c_write_phy_reg(hw, MII_DBG_DATA, data);
> + }
> +}
> +
> +int atl1c_phy_reset(struct atl1c_hw *hw)
> +{
> + struct atl1c_adapter *adapter = hw->adapter;
> + struct pci_dev *pdev = adapter->pdev;
> + u32 phy_ctrl_data = GPHY_CTRL_DEFAULT;
> + u32 mii_ier_data = IER_LINK_UP | IER_LINK_DOWN;
> + int err;
> +
> + if (hw->ctrl_flags & ATL1C_HIB_DISABLE)
> + phy_ctrl_data &= ~GPHY_CTRL_HIB_EN;
> +
> + AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl_data);
> + msleep(40);
> + phy_ctrl_data |= GPHY_CTRL_EXT_RESET;
> + AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl_data);
> + msleep(10);
> +
> + /*Enable PHY LinkChange Interrupt */
> + err = atl1c_write_phy_reg(hw, MII_IER, mii_ier_data);
> + if (err) {
> + dev_err(&pdev->dev, "Error enable PHY linkChange Interrupt\n");
> + return err;
> + }
> + if (!(hw->ctrl_flags & ATL1C_FPGA_VERSION))
> + atl1c_phy_magic_data(hw);
> + return 0;
> +}
> +
> +int atl1c_phy_init(struct atl1c_hw *hw)
> +{
> + struct atl1c_adapter *adapter = (struct atl1c_adapter *)hw->adapter;
> + struct pci_dev *pdev = adapter->pdev;
> + int ret_val;
> + u16 mii_bmcr_data = BMCR_RESET;
> + u16 phy_id1, phy_id2;
> +
> + if ((atl1c_read_phy_reg(hw, MII_PHYSID1, &phy_id1) != 0) ||
> + (atl1c_read_phy_reg(hw, MII_PHYSID2, &phy_id2) != 0)) {
> + dev_err(&pdev->dev, "Error get phy ID\n");
> + return -1;
> + }
> + switch (hw->media_type) {
> + case MEDIA_TYPE_AUTO_SENSOR:
> + ret_val = atl1c_phy_setup_adv(hw);
> + if (ret_val) {
> + dev_err(&pdev->dev,
> + "Error Setting up Auto-Negotiation\n");
> + return ret_val;
> + }
> + mii_bmcr_data |= BMCR_AUTO_NEG_EN | BMCR_RESTART_AUTO_NEG;
> + break;
> + case MEDIA_TYPE_100M_FULL:
> + mii_bmcr_data |= BMCR_SPEED_100 | BMCR_FULL_DUPLEX;
> + break;
> + case MEDIA_TYPE_100M_HALF:
> + mii_bmcr_data |= BMCR_SPEED_100;
> + break;
> + case MEDIA_TYPE_10M_FULL:
> + mii_bmcr_data |= BMCR_SPEED_10 | BMCR_FULL_DUPLEX;
> + break;
> + case MEDIA_TYPE_10M_HALF:
> + mii_bmcr_data |= BMCR_SPEED_10;
> + break;
> + default:
> + dev_err(&pdev->dev, "Wrong Media type %d\n", hw->media_type);
> + return AT_ERR_PARAM;
> + break;
> + }
> +
> + ret_val = atl1c_write_phy_reg(hw, MII_BMCR, mii_bmcr_data);
> + if (ret_val)
> + return ret_val;
> + hw->phy_configured = true;
> +
> + return 0;
> +}
> +
> +/*
> + * 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 atl1c_get_speed_and_duplex(struct atl1c_hw *hw, u16 *speed, u16 *duplex)
> +{
> + int err;
> + u16 phy_data;
> +
> + /* Read PHY Specific Status Register (17) */
> + err = atl1c_read_phy_reg(hw, MII_GIGA_PSSR, &phy_data);
> + if (err)
> + return err;
> +
> + if (!(phy_data & GIGA_PSSR_SPD_DPLX_RESOLVED))
> + return AT_ERR_PHY_RES;
> +
> + switch (phy_data & GIGA_PSSR_SPEED) {
> + case GIGA_PSSR_1000MBS:
> + *speed = SPEED_1000;
> + break;
> + case GIGA_PSSR_100MBS:
> + *speed = SPEED_100;
> + break;
> + case GIGA_PSSR_10MBS:
> + *speed = SPEED_10;
> + break;
> + default:
> + return AT_ERR_PHY_SPEED;
> + break;
> + }
> +
> + if (phy_data & GIGA_PSSR_DPLX)
> + *duplex = FULL_DUPLEX;
> + else
> + *duplex = HALF_DUPLEX;
> +
> + return 0;
> +}
> +
> +int atl1c_restart_autoneg(struct atl1c_hw *hw)
> +{
> + int err = 0;
> + u16 mii_bmcr_data = BMCR_RESET;
> +
> + err = atl1c_phy_setup_adv(hw);
> + if (err)
> + return err;
> + mii_bmcr_data |= BMCR_AUTO_NEG_EN | BMCR_RESTART_AUTO_NEG;
> +
> + return atl1c_write_phy_reg(hw, MII_BMCR, mii_bmcr_data);
> +}
> diff --git a/drivers/net/atl1c/atl1c_hw.h b/drivers/net/atl1c/atl1c_hw.h
> new file mode 100644
> index 0000000..aa3fdb0
> --- /dev/null
> +++ b/drivers/net/atl1c/atl1c_hw.h
> @@ -0,0 +1,829 @@
> +/*
> + * Copyright(c) 2008 - 2009 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 _ATL1C_HW_H_
> +#define _ATL1C_HW_H_
> +
> +#include <linux/types.h>
> +#include <linux/mii.h>
> +
> +struct atl1c_adapter;
> +struct atl1c_hw;
> +
> +/* function prototype */
> +void atl1c_phy_disable(struct atl1c_hw *hw);
> +void atl1c_hw_set_mac_addr(struct atl1c_hw *hw);
> +int atl1c_phy_reset(struct atl1c_hw *hw);
> +int atl1c_read_mac_addr(struct atl1c_hw *hw);
> +int atl1c_get_speed_and_duplex(struct atl1c_hw *hw, u16 *speed, u16 *duplex);
> +u32 atl1c_auto_get_fc(struct atl1c_adapter *adapter, u16 duplex);
> +u32 atl1c_hash_mc_addr(struct atl1c_hw *hw, u8 *mc_addr);
> +void atl1c_hash_set(struct atl1c_hw *hw, u32 hash_value);
> +int atl1c_read_phy_reg(struct atl1c_hw *hw, u16 reg_addr, u16 *phy_data);
> +int atl1c_write_phy_reg(struct atl1c_hw *hw, u32 reg_addr, u16 phy_data);
> +int atl1c_validate_mdi_setting(struct atl1c_hw *hw);
> +void atl1c_hw_set_mac_addr(struct atl1c_hw *hw);
> +bool atl1c_read_eeprom(struct atl1c_hw *hw, u32 offset, u32 *p_value);
> +bool atl1c_write_eeprom(struct atl1c_hw *hw, u32 offset, u32 value);
> +int atl1c_phy_enter_power_saving(struct atl1c_hw *hw);
> +int atl1c_phy_leave_power_saving(struct atl1c_hw *hw);
> +int atl1c_phy_init(struct atl1c_hw *hw);
> +int atl1c_check_eeprom_exist(struct atl1c_hw *hw);
> +void atl1c_force_ps(struct atl1c_hw *hw);
> +int atl1c_restart_autoneg(struct atl1c_hw *hw);

Are all these declarations needed?

> +
> +/* register definition */
> +#define REG_PM_CTRLSTAT 0x44
> +#define PM_CTRLSTAT_PME_EN 0x100
> +
> +#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_LINK_CTRL 0x68
> +#define LINK_CTRL_L0S_EN 0x01
> +#define LINK_CTRL_L1_EN 0x02
> +
> +#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_PCIE_UC_SEVERITY 0x10C
> +#define PCIE_UC_SERVRITY_TRN 0x00000001
> +#define PCIE_UC_SERVRITY_DLP 0x00000010
> +#define PCIE_UC_SERVRITY_PSN_TLP 0x00001000
> +#define PCIE_UC_SERVRITY_FCP 0x00002000
> +#define PCIE_UC_SERVRITY_CPL_TO 0x00004000
> +#define PCIE_UC_SERVRITY_CA 0x00008000
> +#define PCIE_UC_SERVRITY_UC 0x00010000
> +#define PCIE_UC_SERVRITY_ROV 0x00020000
> +#define PCIE_UC_SERVRITY_MLFP 0x00040000
> +#define PCIE_UC_SERVRITY_ECRC 0x00080000
> +#define PCIE_UC_SERVRITY_UR 0x00100000
> +
> +#define REG_DEV_SERIALNUM_CTRL 0x200
> +#define REG_DEV_MAC_SEL_MASK 0x0 /* 0:EUI; 1:MAC */
> +#define REG_DEV_MAC_SEL_SHIFT 0
> +#define REG_DEV_SERIAL_NUM_EN_MASK 0x1
> +#define REG_DEV_SERIAL_NUM_EN_SHIFT 1
> +
> +#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 0x7F
> +#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_EXT_PIPE 0x2
> +#define PCIE_DEV_MISC_RETRY_BUFDIS 0x1
> +#define PCIE_DEV_MISC_SPIROM_EXIST 0x4
> +#define PCIE_DEV_MISC_SERDES_ENDIAN 0x8
> +#define PCIE_DEV_MISC_SERDES_SEL_DIN 0x10
> +
> +#define REG_PCIE_PHYMISC 0x1000
> +#define PCIE_PHYMISC_FORCE_RCV_DET 0x4
> +
> +#define REG_TWSI_DEBUG 0x1108
> +#define TWSI_DEBUG_DEV_EXIST 0x20000000
> +
> +#define REG_EEPROM_CTRL 0x12C0
> +#define EEPROM_CTRL_DATA_HI_MASK 0xFFFF
> +#define EEPROM_CTRL_DATA_HI_SHIFT 0
> +#define EEPROM_CTRL_ADDR_MASK 0x3FF
> +#define EEPROM_CTRL_ADDR_SHIFT 16
> +#define EEPROM_CTRL_ACK 0x40000000
> +#define EEPROM_CTRL_RW 0x80000000
> +
> +#define REG_EEPROM_DATA_LO 0x12C4
> +
> +#define REG_OTP_CTRL 0x12F0
> +#define OTP_CTRL_CLK_EN 0x0002
> +
> +#define REG_PM_CTRL 0x12F8
> +#define PM_CTRL_SDES_EN 0x00000001
> +#define PM_CTRL_RBER_EN 0x00000002
> +#define PM_CTRL_CLK_REQ_EN 0x00000004
> +#define PM_CTRL_ASPM_L1_EN 0x00000008
> +#define PM_CTRL_SERDES_L1_EN 0x00000010
> +#define PM_CTRL_SERDES_PLL_L1_EN 0x00000020
> +#define PM_CTRL_SERDES_PD_EX_L1 0x00000040
> +#define PM_CTRL_SERDES_BUDS_RX_L1_EN 0x00000080
> +#define PM_CTRL_L0S_ENTRY_TIMER_MASK 0xF
> +#define PM_CTRL_L0S_ENTRY_TIMER_SHIFT 8
> +#define PM_CTRL_ASPM_L0S_EN 0x00001000
> +#define PM_CTRL_CLK_SWH_L1 0x00002000
> +#define PM_CTRL_CLK_PWM_VER1_1 0x00004000
> +#define PM_CTRL_PCIE_RECV 0x00008000
> +#define PM_CTRL_L1_ENTRY_TIMER_MASK 0xF
> +#define PM_CTRL_L1_ENTRY_TIMER_SHIFT 16
> +#define PM_CTRL_PM_REQ_TIMER_MASK 0xF
> +#define PM_CTRL_PM_REQ_TIMER_SHIFT 20
> +#define PM_CTRL_LCKDET_TIMER_MASK 0x3F
> +#define PM_CTRL_LCKDET_TIMER_SHIFT 24
> +#define PM_CTRL_MAC_ASPM_CHK 0x40000000
> +#define PM_CTRL_HOTRST 0x80000000
> +
> +/* Selene Master Control Register */
> +#define REG_MASTER_CTRL 0x1400
> +#define MASTER_CTRL_SOFT_RST 0x1
> +#define MASTER_CTRL_TEST_MODE_MASK 0x3
> +#define MASTER_CTRL_TEST_MODE_SHIFT 2
> +#define MASTER_CTRL_BERT_START 0x10
> +#define MASTER_CTRL_MTIMER_EN 0x100
> +#define MASTER_CTRL_MANUAL_INT 0x200
> +#define MASTER_CTRL_TX_ITIMER_EN 0x400
> +#define MASTER_CTRL_RX_ITIMER_EN 0x800
> +#define MASTER_CTRL_CLK_SEL_DIS 0x1000
> +#define MASTER_CTRL_CLK_SWH_MODE 0x2000
> +#define MASTER_CTRL_INT_RDCLR 0x4000
> +#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 0x7f
> +#define MASTER_CTRL_OTP_SEL 0x80000000
> +
> +/* Timer Initial Value Register */
> +#define REG_MANUAL_TIMER_INIT 0x1404
> +
> +/* IRQ ModeratorTimer Initial Value Register */
> +#define REG_IRQ_MODRT_TIMER_INIT 0x1408
> +#define IRQ_MODRT_TIMER_MASK 0xffff
> +#define IRQ_MODRT_TX_TIMER_SHIFT 0
> +#define IRQ_MODRT_RX_TIMER_SHIFT 16
> +
> +#define REG_GPHY_CTRL 0x140C
> +#define GPHY_CTRL_EXT_RESET 0x1
> +#define GPHY_CTRL_RTL_MODE 0x2
> +#define GPHY_CTRL_LED_MODE 0x4
> +#define GPHY_CTRL_ANEG_NOW 0x8
> +#define GPHY_CTRL_REV_ANEG 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_GIGA_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_PHY_PLL_BYPASS 0x8000
> +
> +#define GPHY_CTRL_DEFAULT ( \
> + GPHY_CTRL_SEL_ANA_RST |\
> + GPHY_CTRL_HIB_PULSE |\
> + GPHY_CTRL_HIB_EN)
> +
> +#define GPHY_CTRL_PW_WOL_DIS ( \
> + GPHY_CTRL_SEL_ANA_RST |\
> + GPHY_CTRL_HIB_PULSE |\
> + GPHY_CTRL_HIB_EN |\
> + GPHY_CTRL_PWDOWN_HW |\
> + GPHY_CTRL_PHY_IDDQ)
> +
> +/* Block IDLE Status Register */
> +#define REG_IDLE_STATUS 0x1410
> +#define IDLE_STATUS_MASK 0x00FF
> +#define IDLE_STATUS_RXMAC_NO_IDLE 0x1
> +#define IDLE_STATUS_TXMAC_NO_IDLE 0x2
> +#define IDLE_STATUS_RXQ_NO_IDLE 0x4
> +#define IDLE_STATUS_TXQ_NO_IDLE 0x8
> +#define IDLE_STATUS_DMAR_NO_IDLE 0x10
> +#define IDLE_STATUS_DMAW_NO_IDLE 0x20
> +#define IDLE_STATUS_SMB_NO_IDLE 0x40
> +#define IDLE_STATUS_CMB_NO_IDLE 0x80
> +
> +/* 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_GENERAL_STATUS_MASK 0xFFFF
> +#define PHY_STATUS_RECV_ENABLE 0x0001
> +#define PHY_OE_PWSP_STATUS_MASK 0x07FF
> +#define PHY_OE_PWSP_STATUS_SHIFT 16
> +#define PHY_STATUS_LPW_STATE 0x80000000
> +/* BIST Control and Status Register0 (for the Packet Memory) */
> +#define REG_BIST0_CTRL 0x141c
> +#define BIST0_NOW 0x1
> +#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
> +
> +/* BIST Control and Status Register1(for the retry buffer of PCI Express) */
> +#define REG_BIST1_CTRL 0x1420
> +#define BIST1_NOW 0x1
> +#define BIST1_SRAM_FAIL 0x2
> +#define BIST1_FUSE_FLAG 0x4
> +
> +/* SerDes Lock Detect Control and Status Register */
> +#define REG_SERDES_LOCK 0x1424
> +#define SERDES_LOCK_DETECT 0x1 /* SerDes lock detected. This signal
> + * comes from Analog SerDes */
> +#define SERDES_LOCK_DETECT_EN 0x2 /* 1: Enable SerDes Lock detect function */
> +
> +/* MAC Control Register */
> +#define REG_MAC_CTRL 0x1480
> +#define MAC_CTRL_TX_EN 0x1
> +#define MAC_CTRL_RX_EN 0x2
> +#define MAC_CTRL_TX_FLOW 0x4
> +#define MAC_CTRL_RX_FLOW 0x8
> +#define MAC_CTRL_LOOPBACK 0x10
> +#define MAC_CTRL_DUPLX 0x20
> +#define MAC_CTRL_ADD_CRC 0x40
> +#define MAC_CTRL_PAD 0x80
> +#define MAC_CTRL_LENCHK 0x100
> +#define MAC_CTRL_HUGE_EN 0x200
> +#define MAC_CTRL_PRMLEN_SHIFT 10
> +#define MAC_CTRL_PRMLEN_MASK 0xf
> +#define MAC_CTRL_RMV_VLAN 0x4000
> +#define MAC_CTRL_PROMIS_EN 0x8000
> +#define MAC_CTRL_TX_PAUSE 0x10000
> +#define MAC_CTRL_SCNT 0x20000
> +#define MAC_CTRL_SRST_TX 0x40000
> +#define MAC_CTRL_TX_SIMURST 0x80000
> +#define MAC_CTRL_SPEED_SHIFT 20
> +#define MAC_CTRL_SPEED_MASK 0x3
> +#define MAC_CTRL_DBG_TX_BKPRESURE 0x400000
> +#define MAC_CTRL_TX_HUGE 0x800000
> +#define MAC_CTRL_RX_CHKSUM_EN 0x1000000
> +#define MAC_CTRL_MC_ALL_EN 0x2000000
> +#define MAC_CTRL_BC_EN 0x4000000
> +#define MAC_CTRL_DBG 0x8000000
> +#define MAC_CTRL_SINGLE_PAUSE_EN 0x10000000
> +
> +/* 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
> +#define MAC_HALF_DUPLX_CTRL_RETRY_MASK 0xf
> +#define MAC_HALF_DUPLX_CTRL_EXC_DEF_EN 0x10000
> +#define MAC_HALF_DUPLX_CTRL_NO_BACK_C 0x20000
> +#define MAC_HALF_DUPLX_CTRL_NO_BACK_P 0x40000 /* 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 RFDX_HEAD_ADDR_MASK 0x03FF
> +#define RFDX_HARD_ADDR_SHIFT 0
> +#define RFDX_TAIL_ADDR_MASK 0x03FF
> +#define RFDX_TAIL_ADDR_SHIFT 16
> +
> +#define REG_SRAM_RFD0_INFO 0x1500
> +#define REG_SRAM_RFD1_INFO 0x1504
> +#define REG_SRAM_RFD2_INFO 0x1508
> +#define REG_SRAM_RFD3_INFO 0x150C
> +
> +#define REG_RFD_NIC_LEN 0x1510 /* In 8-bytes */
> +#define RFD_NIC_LEN_MASK 0x03FF
> +
> +#define REG_SRAM_TRD_ADDR 0x1518
> +#define TPD_HEAD_ADDR_MASK 0x03FF
> +#define TPD_HEAD_ADDR_SHIFT 0
> +#define TPD_TAIL_ADDR_MASK 0x03FF
> +#define TPD_TAIL_ADDR_SHIFT 16
> +
> +#define REG_SRAM_TRD_LEN 0x151C /* In 8-bytes */
> +#define TPD_NIC_LEN_MASK 0x03FF
> +
> +#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
> + * Software sets this bit after the initialization of the head and tail */
> +#define REG_LOAD_PTR 0x1534
> +
> +/*
> + * 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.
> + */
> +#define REG_RX_BASE_ADDR_HI 0x1540
> +#define REG_TX_BASE_ADDR_HI 0x1544
> +#define REG_SMB_BASE_ADDR_HI 0x1548
> +#define REG_SMB_BASE_ADDR_LO 0x154C
> +#define REG_RFD0_HEAD_ADDR_LO 0x1550
> +#define REG_RFD1_HEAD_ADDR_LO 0x1554
> +#define REG_RFD2_HEAD_ADDR_LO 0x1558
> +#define REG_RFD3_HEAD_ADDR_LO 0x155C
> +#define REG_RFD_RING_SIZE 0x1560
> +#define RFD_RING_SIZE_MASK 0x0FFF
> +#define REG_RX_BUF_SIZE 0x1564
> +#define RX_BUF_SIZE_MASK 0xFFFF
> +#define REG_RRD0_HEAD_ADDR_LO 0x1568
> +#define REG_RRD1_HEAD_ADDR_LO 0x156C
> +#define REG_RRD2_HEAD_ADDR_LO 0x1570
> +#define REG_RRD3_HEAD_ADDR_LO 0x1574
> +#define REG_RRD_RING_SIZE 0x1578
> +#define RRD_RING_SIZE_MASK 0x0FFF
> +#define REG_HTPD_HEAD_ADDR_LO 0x157C
> +#define REG_NTPD_HEAD_ADDR_LO 0x1580
> +#define REG_TPD_RING_SIZE 0x1584
> +#define TPD_RING_SIZE_MASK 0xFFFF
> +#define REG_CMB_BASE_ADDR_LO 0x1588
> +
> +/* 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_TABLE0 0x14E0
> +#define REG_IDT_TABLE1 0x14E4
> +#define REG_IDT_TABLE2 0x14E8
> +#define REG_IDT_TABLE3 0x14EC
> +#define REG_IDT_TABLE4 0x14F0
> +#define REG_IDT_TABLE5 0x14F4
> +#define REG_IDT_TABLE6 0x14F8
> +#define REG_IDT_TABLE7 0x14FC
> +#define REG_IDT_TABLE REG_IDT_TABLE0
> +#define REG_RSS_HASH_VALUE 0x15B0
> +#define REG_RSS_HASH_FLAG 0x15B4
> +#define REG_BASE_CPU_NUMBER 0x15B8
> +
> +/* TXQ Control Register */
> +#define REG_TXQ_CTRL 0x1590
> +#define TXQ_NUM_TPD_BURST_MASK 0xF
> +#define TXQ_NUM_TPD_BURST_SHIFT 0
> +#define TXQ_CTRL_IP_OPTION_EN 0x10
> +#define TXQ_CTRL_EN 0x20
> +#define TXQ_CTRL_ENH_MODE 0x40
> +#define TXQ_CTRL_LS_8023_EN 0x80
> +#define TXQ_TXF_BURST_NUM_SHIFT 16
> +#define TXQ_TXF_BURST_NUM_MASK 0xFFFF
> +
> +/* Jumbo packet Threshold for task offload */
> +#define REG_TX_TSO_OFFLOAD_THRESH 0x1594 /* In 8-bytes */
> +#define TX_TSO_OFFLOAD_THRESH_MASK 0x07FF
> +
> +#define REG_TXF_WATER_MARK 0x1598 /* In 8-bytes */
> +#define TXF_WATER_MARK_MASK 0x0FFF
> +#define TXF_LOW_WATER_MARK_SHIFT 0
> +#define TXF_HIGH_WATER_MARK_SHIFT 16
> +#define TXQ_CTRL_BURST_MODE_EN 0x80000000
> +
> +#define REG_THRUPUT_MON_CTRL 0x159C
> +#define THRUPUT_MON_RATE_MASK 0x3
> +#define THRUPUT_MON_RATE_SHIFT 0
> +#define THRUPUT_MON_EN 0x80
> +
> +/* RXQ Control Register */
> +#define REG_RXQ_CTRL 0x15A0
> +#define ASPM_THRUPUT_LIMIT_MASK 0x3
> +#define ASPM_THRUPUT_LIMIT_SHIFT 0
> +#define ASPM_THRUPUT_LIMIT_NO 0x00
> +#define ASPM_THRUPUT_LIMIT_1M 0x01
> +#define ASPM_THRUPUT_LIMIT_10M 0x02
> +#define ASPM_THRUPUT_LIMIT_100M 0x04
> +#define RXQ1_CTRL_EN 0x10
> +#define RXQ2_CTRL_EN 0x20
> +#define RXQ3_CTRL_EN 0x40
> +#define IPV6_CHKSUM_CTRL_EN 0x80
> +#define RSS_HASH_BITS_MASK 0x00FF
> +#define RSS_HASH_BITS_SHIFT 8
> +#define RSS_HASH_IPV4 0x10000
> +#define RSS_HASH_IPV4_TCP 0x20000
> +#define RSS_HASH_IPV6 0x40000
> +#define RSS_HASH_IPV6_TCP 0x80000
> +#define RXQ_RFD_BURST_NUM_MASK 0x003F
> +#define RXQ_RFD_BURST_NUM_SHIFT 20
> +#define RSS_MODE_MASK 0x0003
> +#define RSS_MODE_SHIFT 26
> +#define RSS_NIP_QUEUE_SEL_MASK 0x1
> +#define RSS_NIP_QUEUE_SEL_SHIFT 28
> +#define RRS_HASH_CTRL_EN 0x20000000
> +#define RX_CUT_THRU_EN 0x40000000
> +#define RXQ_CTRL_EN 0x80000000
> +
> +#define REG_RFD_FREE_THRESH 0x15A4
> +#define RFD_FREE_THRESH_MASK 0x003F
> +#define RFD_FREE_HI_THRESH_SHIFT 0
> +#define RFD_FREE_LO_THRESH_SHIFT 6
> +
> +/* 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 0x0FFF
> +#define RXQ_RXF_PAUSE_TH_LO_SHIFT 16
> +#define RXQ_RXF_PAUSE_TH_LO_MASK 0x0FFF
> +
> +#define REG_RXD_DMA_CTRL 0x15AC
> +#define RXD_DMA_THRESH_MASK 0x0FFF /* In 8-bytes */
> +#define RXD_DMA_THRESH_SHIFT 0
> +#define RXD_DMA_DOWN_TIMER_MASK 0xFFFF
> +#define RXD_DMA_DOWN_TIMER_SHIFT 16
> +
> +/* 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_MASK 0x0007
> +#define DMA_CTRL_DMAR_BURST_LEN_SHIFT 4
> +#define DMA_CTRL_DMAW_BURST_LEN_MASK 0x0007
> +#define DMA_CTRL_DMAW_BURST_LEN_SHIFT 7
> +#define DMA_CTRL_DMAR_REQ_PRI 0x400
> +#define DMA_CTRL_DMAR_DLY_CNT_MASK 0x001F
> +#define DMA_CTRL_DMAR_DLY_CNT_SHIFT 11
> +#define DMA_CTRL_DMAW_DLY_CNT_MASK 0x000F
> +#define DMA_CTRL_DMAW_DLY_CNT_SHIFT 16
> +#define DMA_CTRL_CMB_EN 0x100000
> +#define DMA_CTRL_SMB_EN 0x200000
> +#define DMA_CTRL_CMB_NOW 0x400000
> +#define MAC_CTRL_SMB_DIS 0x1000000
> +#define DMA_CTRL_SMB_NOW 0x80000000
> +
> +/* CMB/SMB Control Register */
> +#define REG_SMB_STAT_TIMER 0x15C4 /* 2us resolution */
> +#define SMB_STAT_TIMER_MASK 0xFFFFFF
> +#define REG_CMB_TPD_THRESH 0x15C8
> +#define CMB_TPD_THRESH_MASK 0xFFFF
> +#define REG_CMB_TX_TIMER 0x15CC /* 2us resolution */
> +#define CMB_TX_TIMER_MASK 0xFFFF
> +
> +/* Mail box */
> +#define MB_RFDX_PROD_IDX_MASK 0xFFFF
> +#define REG_MB_RFD0_PROD_IDX 0x15E0
> +#define REG_MB_RFD1_PROD_IDX 0x15E4
> +#define REG_MB_RFD2_PROD_IDX 0x15E8
> +#define REG_MB_RFD3_PROD_IDX 0x15EC
> +
> +#define MB_PRIO_PROD_IDX_MASK 0xFFFF
> +#define REG_MB_PRIO_PROD_IDX 0x15F0
> +#define MB_HTPD_PROD_IDX_SHIFT 0
> +#define MB_NTPD_PROD_IDX_SHIFT 16
> +
> +#define MB_PRIO_CONS_IDX_MASK 0xFFFF
> +#define REG_MB_PRIO_CONS_IDX 0x15F4
> +#define MB_HTPD_CONS_IDX_SHIFT 0
> +#define MB_NTPD_CONS_IDX_SHIFT 16
> +
> +#define REG_MB_RFD01_CONS_IDX 0x15F8
> +#define MB_RFD0_CONS_IDX_MASK 0x0000FFFF
> +#define MB_RFD1_CONS_IDX_MASK 0xFFFF0000
> +#define REG_MB_RFD23_CONS_IDX 0x15FC
> +#define MB_RFD2_CONS_IDX_MASK 0x0000FFFF
> +#define MB_RFD3_CONS_IDX_MASK 0xFFFF0000
> +
> +/* Interrupt Status Register */
> +#define REG_ISR 0x1600
> +#define ISR_SMB 0x00000001
> +#define ISR_TIMER 0x00000002
> +/*
> + * 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 0x00000004
> +#define ISR_HW_RXF_OV 0x00000008 /* RXF overflow interrupt */
> +#define ISR_RFD0_UR 0x00000010 /* RFD0 under run */
> +#define ISR_RFD1_UR 0x00000020
> +#define ISR_RFD2_UR 0x00000040
> +#define ISR_RFD3_UR 0x00000080
> +#define ISR_TXF_UR 0x00000100
> +#define ISR_DMAR_TO_RST 0x00000200
> +#define ISR_DMAW_TO_RST 0x00000400
> +#define ISR_TX_CREDIT 0x00000800
> +#define ISR_GPHY 0x00001000
> +/* GPHY low power state interrupt */
> +#define ISR_GPHY_LPW 0x00002000
> +#define ISR_TXQ_TO_RST 0x00004000
> +#define ISR_TX_PKT 0x00008000
> +#define ISR_RX_PKT_0 0x00010000
> +#define ISR_RX_PKT_1 0x00020000
> +#define ISR_RX_PKT_2 0x00040000
> +#define ISR_RX_PKT_3 0x00080000
> +#define ISR_MAC_RX 0x00100000
> +#define ISR_MAC_TX 0x00200000
> +#define ISR_UR_DETECTED 0x00400000
> +#define ISR_FERR_DETECTED 0x00800000
> +#define ISR_NFERR_DETECTED 0x01000000
> +#define ISR_CERR_DETECTED 0x02000000
> +#define ISR_PHY_LINKDOWN 0x04000000
> +#define ISR_DIS_INT 0x80000000
> +
> +/* Interrupt Mask Register */
> +#define REG_IMR 0x1604
> +
> +#define IMR_NORMAL_MASK (\
> + ISR_MANUAL |\
> + ISR_HW_RXF_OV |\
> + ISR_RFD0_UR |\
> + ISR_TXF_UR |\
> + ISR_DMAR_TO_RST |\
> + ISR_TXQ_TO_RST |\
> + ISR_DMAW_TO_RST |\
> + ISR_GPHY |\
> + ISR_TX_PKT |\
> + ISR_RX_PKT_0 |\
> + ISR_GPHY_LPW |\
> + ISR_PHY_LINKDOWN)
> +
> +#define ISR_RX_PKT (\
> + ISR_RX_PKT_0 |\
> + ISR_RX_PKT_1 |\
> + ISR_RX_PKT_2 |\
> + ISR_RX_PKT_3)
> +
> +#define ISR_OVER (\
> + ISR_RFD0_UR |\
> + ISR_RFD1_UR |\
> + ISR_RFD2_UR |\
> + ISR_RFD3_UR |\
> + ISR_HW_RXF_OV |\
> + ISR_TXF_UR)
> +
> +#define ISR_ERROR (\
> + ISR_DMAR_TO_RST |\
> + ISR_TXQ_TO_RST |\
> + ISR_DMAW_TO_RST |\
> + ISR_PHY_LINKDOWN)
> +
> +#define REG_INT_RETRIG_TIMER 0x1608
> +#define INT_RETRIG_TIMER_MASK 0xFFFF
> +
> +#define REG_HDS_CTRL 0x160C
> +#define HDS_CTRL_EN 0x0001
> +#define HDS_CTRL_BACKFILLSIZE_SHIFT 8
> +#define HDS_CTRL_BACKFILLSIZE_MASK 0x0FFF
> +#define HDS_CTRL_MAX_HDRSIZE_SHIFT 20
> +#define HDS_CTRL_MAC_HDRSIZE_MASK 0x0FFF
> +
> +#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
> +
> +/* DEBUG ADDR */
> +#define REG_DEBUG_DATA0 0x1900
> +#define REG_DEBUG_DATA1 0x1904
> +
> +/* PHY Control Register */
> +#define MII_BMCR 0x00
> +#define BMCR_SPEED_SELECT_MSB 0x0040 /* bits 6,13: 10=1000, 01=100, 00=10 */
> +#define BMCR_COLL_TEST_ENABLE 0x0080 /* Collision test enable */
> +#define BMCR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */
> +#define BMCR_RESTART_AUTO_NEG 0x0200 /* Restart auto negotiation */
> +#define BMCR_ISOLATE 0x0400 /* Isolate PHY from MII */
> +#define BMCR_POWER_DOWN 0x0800 /* Power down */
> +#define BMCR_AUTO_NEG_EN 0x1000 /* Auto Neg Enable */
> +#define BMCR_SPEED_SELECT_LSB 0x2000 /* bits 6,13: 10=1000, 01=100, 00=10 */
> +#define BMCR_LOOPBACK 0x4000 /* 0 = normal, 1 = loopback */
> +#define BMCR_RESET 0x8000 /* 0 = normal, 1 = PHY reset */
> +#define BMCR_SPEED_MASK 0x2040
> +#define BMCR_SPEED_1000 0x0040
> +#define BMCR_SPEED_100 0x2000
> +#define BMCR_SPEED_10 0x0000
> +
> +/* PHY Status Register */
> +#define MII_BMSR 0x01
> +#define BMMSR_EXTENDED_CAPS 0x0001 /* Extended register capabilities */
> +#define BMSR_JABBER_DETECT 0x0002 /* Jabber Detected */
> +#define BMSR_LINK_STATUS 0x0004 /* Link Status 1 = link */
> +#define BMSR_AUTONEG_CAPS 0x0008 /* Auto Neg Capable */
> +#define BMSR_REMOTE_FAULT 0x0010 /* Remote Fault Detect */
> +#define BMSR_AUTONEG_COMPLETE 0x0020 /* Auto Neg Complete */
> +#define BMSR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */
> +#define BMSR_EXTENDED_STATUS 0x0100 /* Ext. status info in Reg 0x0F */
> +#define BMSR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */
> +#define BMSR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */
> +#define BMSR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */
> +#define BMSR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */
> +#define BMSR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */
> +#define BMMII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */
> +#define BMMII_SR_100T4_CAPS 0x8000 /* 100T4 Capable */
> +
> +#define MII_PHYSID1 0x02
> +#define MII_PHYSID2 0x03
> +
> +/* Autoneg Advertisement Register */
> +#define MII_ADVERTISE 0x04
> +#define ADVERTISE_SELECTOR_FIELD 0x0001 /* indicates IEEE 802.3 CSMA/CD */
> +#define ADVERTISE_10T_HD_CAPS 0x0020 /* 10T Half Duplex Capable */
> +#define ADVERTISE_10T_FD_CAPS 0x0040 /* 10T Full Duplex Capable */
> +#define ADVERTISE_100TX_HD_CAPS 0x0080 /* 100TX Half Duplex Capable */
> +#define ADVERTISE_100TX_FD_CAPS 0x0100 /* 100TX Full Duplex Capable */
> +#define ADVERTISE_100T4_CAPS 0x0200 /* 100T4 Capable */
> +#define ADVERTISE_PAUSE 0x0400 /* Pause operation desired */
> +#define ADVERTISE_ASM_DIR 0x0800 /* Asymmetric Pause Direction bit */
> +#define ADVERTISE_REMOTE_FAULT 0x2000 /* Remote Fault detected */
> +#define ADVERTISE_NEXT_PAGE 0x8000 /* Next Page ability supported */
> +#define ADVERTISE_SPEED_MASK 0x01E0
> +#define ADVERTISE_DEFAULT_CAP 0x0DE0
> +
> +#if 0
> +/* Link partner ability register */
> +#define MII_LPA 0x05
> +#define LPA_SLCT 0x001 /* Same as advertise selector */
> +#define LPA_10HALF 0x002 /* Can do 10mbps half-duplex */
> +#define LPA_10FULL 0x0040 /* Can do 10mbps full-duplex */
> +#define LPA_100HALF 0x0080 /* Can do 100mbps half-duplex */
> +#define LPA_100FULL 0x0100 /* Can do 100mbps full-duplex */
> +#define LPA_100BASE4 0x0200 /* 100BASE-T4 */
> +#define LPA_PAUSE 0x0400 /* PAUSE */
> +#define LPA_ASYPAUSE 0x0800 /* Asymmetrical PAUSE */
> +#define LPA_RFAULT 0x2000 /* Link partner faulted */
> +#define LPA_LPACK 0x4000 /* Link partner acked us */
> +#define LPA_NPAGE 0x8000 /* Next page bit */
> +#endif

Remove.

> +/* 1000BASE-T Control Register */
> +#define MII_GIGA_CR 0x09
> +#define GIGA_CR_1000T_HD_CAPS 0x0100 /* Advertise 1000T HD capability */
> +#define GIGA_CR_1000T_FD_CAPS 0x0200 /* Advertise 1000T FD capability */
> +#define GIGA_CR_1000T_REPEATER_DTE 0x0400 /* 1=Repeater/switch device port 0=DTE device */
> +
> +#define GIGA_CR_1000T_MS_VALUE 0x0800 /* 1=Configure PHY as Master 0=Configure PHY as Slave */
> +#define GIGA_CR_1000T_MS_ENABLE 0x1000 /* 1=Master/Slave manual config value 0=Automatic Master/Slave config */
> +#define GIGA_CR_1000T_TEST_MODE_NORMAL 0x0000 /* Normal Operation */
> +#define GIGA_CR_1000T_TEST_MODE_1 0x2000 /* Transmit Waveform test */
> +#define GIGA_CR_1000T_TEST_MODE_2 0x4000 /* Master Transmit Jitter test */
> +#define GIGA_CR_1000T_TEST_MODE_3 0x6000 /* Slave Transmit Jitter test */
> +#define GIGA_CR_1000T_TEST_MODE_4 0x8000 /* Transmitter Distortion test */
> +#define GIGA_CR_1000T_SPEED_MASK 0x0300
> +#define GIGA_CR_1000T_DEFAULT_CAP 0x0300
> +
> +/* PHY Specific Status Register */
> +#define MII_GIGA_PSSR 0x11
> +#define GIGA_PSSR_SPD_DPLX_RESOLVED 0x0800 /* 1=Speed & Duplex resolved */
> +#define GIGA_PSSR_DPLX 0x2000 /* 1=Duplex 0=Half Duplex */
> +#define GIGA_PSSR_SPEED 0xC000 /* Speed, bits 14:15 */
> +#define GIGA_PSSR_10MBS 0x0000 /* 00=10Mbs */
> +#define GIGA_PSSR_100MBS 0x4000 /* 01=100Mbs */
> +#define GIGA_PSSR_1000MBS 0x8000 /* 10=1000Mbs */
> +
> +/* PHY Interrupt Enable Register */
> +#define MII_IER 0x12
> +#define IER_LINK_UP 0x0400
> +#define IER_LINK_DOWN 0x0800
> +
> +/* PHY Interrupt Status Register */
> +#define MII_ISR 0x13
> +#define ISR_LINK_UP 0x0400
> +#define ISR_LINK_DOWN 0x0800
> +
> +/* Cable-Detect-Test Control Register */
> +#define MII_CDTC 0x16
> +#define CDTC_EN_OFF 0 /* sc */
> +#define CDTC_EN_BITS 1
> +#define CDTC_PAIR_OFF 8
> +#define CDTC_PAIR_BIT 2
> +
> +/* Cable-Detect-Test Status Register */
> +#define MII_CDTS 0x1C
> +#define CDTS_STATUS_OFF 8
> +#define CDTS_STATUS_BITS 2
> +#define CDTS_STATUS_NORMAL 0
> +#define CDTS_STATUS_SHORT 1
> +#define CDTS_STATUS_OPEN 2
> +#define CDTS_STATUS_INVALID 3
> +
> +#define MII_DBG_ADDR 0x1D
> +#define MII_DBG_DATA 0x1E
> +
> +#endif /*_ATL1C_HW_H_*/
> diff --git a/drivers/net/atl1c/atl1c_main.c b/drivers/net/atl1c/atl1c_main.c
> new file mode 100644
> index 0000000..5da217d
> --- /dev/null
> +++ b/drivers/net/atl1c/atl1c_main.c
> @@ -0,0 +1,2804 @@
> +/*
> + * Copyright(c) 2008 - 2009 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 "atl1c.h"
> +
> +#define DRV_VERSION "1.0.0.1-NAPI"
> +char atl1c_driver_name[] = "ATL1C";

Minor nit, but why uppercase?

> +char atl1c_driver_version[] = DRV_VERSION;
> +#define PCI_DEVICE_ID_ATTANSIC_L2C 0x1062
> +#define PCI_DEVICE_ID_ATTANSIC_L1C 0x1063

The kconfig file indicates support for only the L1C. Does this driver also support the L2C? Is the L1C a gigabit device and the L2C a 10/100 device?

> +/*
> + * atl1c_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 atl1c_pci_tbl[] = {
> + {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATTANSIC_L1C)},
> + {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATTANSIC_L2C)},
> + /* required last entry */
> + { 0 }
> +};
> +MODULE_DEVICE_TABLE(pci, atl1c_pci_tbl);
> +
> +MODULE_AUTHOR("Jie Yang <jie.yang@xxxxxxxxxxx>");
> +MODULE_DESCRIPTION("Atheros 1000M Ethernet Network Driver");
> +MODULE_LICENSE("GPL");
> +MODULE_VERSION(DRV_VERSION);
> +
> +static int atl1c_stop_mac(struct atl1c_hw *hw);
> +static void atl1c_enable_rx_ctrl(struct atl1c_hw *hw);
> +static void atl1c_enable_tx_ctrl(struct atl1c_hw *hw);
> +static void atl1c_disable_l0s_l1(struct atl1c_hw *hw);
> +static void atl1c_set_aspm(struct atl1c_hw *hw, bool linkup);
> +static void atl1c_setup_mac_ctrl(struct atl1c_adapter *adapter);
> +static void atl1c_clean_rx_irq(struct atl1c_adapter *adapter, u8 que,
> + int *work_done, int work_to_do);

Please reorder the code to eliminate the need for these forward declarations.

> +
> +static const u16 atl1c_pay_load_size[] = {
> + 128, 256, 512, 1024, 2048, 4096,
> +};
> +
> +static const u16 atl1c_rfd_prod_idx_regs[AT_MAX_RECEIVE_QUEUE] =
> +{
> + REG_MB_RFD0_PROD_IDX,
> + REG_MB_RFD1_PROD_IDX,
> + REG_MB_RFD2_PROD_IDX,
> + REG_MB_RFD3_PROD_IDX
> +};
> +
> +static const u16 atl1c_rfd_addr_lo_regs[AT_MAX_RECEIVE_QUEUE] =
> +{
> + REG_RFD0_HEAD_ADDR_LO,
> + REG_RFD1_HEAD_ADDR_LO,
> + REG_RFD2_HEAD_ADDR_LO,
> + REG_RFD3_HEAD_ADDR_LO
> +};
> +
> +static const u16 atl1c_rrd_addr_lo_regs[AT_MAX_RECEIVE_QUEUE] =
> +{
> + REG_RRD0_HEAD_ADDR_LO,
> + REG_RRD1_HEAD_ADDR_LO,
> + REG_RRD2_HEAD_ADDR_LO,
> + REG_RRD3_HEAD_ADDR_LO
> +};
> +
> +/*
> + * atl1c_init_pcie - init PCIE module
> + */
> +static void atl1c_reset_pcie(struct atl1c_hw *hw, u32 flag)
> +{
> + u32 data;
> + u32 pci_cmd;
> +
> + AT_READ_REG(hw, PCI_COMMAND, &pci_cmd);
> + pci_cmd &= ~PCI_COMMAND_INTX_DISABLE;
> + pci_cmd |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER |
> + PCI_COMMAND_IO);
> + AT_WRITE_REG(hw, PCI_COMMAND, pci_cmd);
> +
> + /*
> + * Clear any PowerSaveing Settings
> + */
> + AT_WRITE_REG(hw, REG_PM_CTRLSTAT, 0);
> +
> + /*
> + * Mask some pcie error bits
> + */
> + AT_READ_REG(hw, REG_PCIE_UC_SEVERITY, &data);
> + data &= ~PCIE_UC_SERVRITY_DLP;
> + data &= ~PCIE_UC_SERVRITY_FCP;
> + AT_WRITE_REG(hw, REG_PCIE_UC_SEVERITY, data);
> +
> + if (flag & ATL1C_PCIE_L0S_L1_DISABLE)
> + atl1c_disable_l0s_l1(hw);
> + if (flag & ATL1C_PCIE_PHY_RESET)
> + AT_WRITE_REG(hw, REG_GPHY_CTRL, GPHY_CTRL_DEFAULT);
> + else
> + AT_WRITE_REG(hw, REG_GPHY_CTRL,
> + GPHY_CTRL_DEFAULT | GPHY_CTRL_EXT_RESET);
> +
> + msleep(1);
> +}
> +
> +/*
> + * atl1c_irq_enable - Enable default interrupt generation settings
> + * @adapter: board private structure
> + */
> +static inline void atl1c_irq_enable(struct atl1c_adapter *adapter)
> +{
> + if (likely(atomic_dec_and_test(&adapter->irq_sem))) {
> + AT_WRITE_REG(&adapter->hw, REG_ISR, 0x7FFFFFFF);
> + AT_WRITE_REG(&adapter->hw, REG_IMR, adapter->hw.intr_mask);
> + AT_WRITE_FLUSH(&adapter->hw);
> + }
> +}
> +
> +/*
> + * atl1c_irq_disable - Mask off interrupt generation on the NIC
> + * @adapter: board private structure
> + */
> +static inline void atl1c_irq_disable(struct atl1c_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);
> +}
> +
> +/*
> + * atl1c_irq_reset - reset interrupt confiure on the NIC
> + * @adapter: board private structure
> + */
> +static inline void atl1c_irq_reset(struct atl1c_adapter *adapter)
> +{
> + atomic_set(&adapter->irq_sem, 1);
> + atl1c_irq_enable(adapter);
> +}
> +
> +/*
> + * atl1c_phy_config - Timer Call-back
> + * @data: pointer to netdev cast into an unsigned long
> + */
> +static void atl1c_phy_config(unsigned long data)
> +{
> + struct atl1c_adapter *adapter = (struct atl1c_adapter *) data;
> + struct atl1c_hw *hw = &adapter->hw;
> + unsigned long flags;
> +
> + spin_lock_irqsave(&adapter->mdio_lock, flags);
> + atl1c_restart_autoneg(hw);
> + spin_unlock_irqrestore(&adapter->mdio_lock, flags);
> +}
> +
> +void atl1c_reinit_locked(struct atl1c_adapter *adapter)
> +{
> +
> + WARN_ON(in_interrupt());
> + atl1c_down(adapter);
> + atl1c_up(adapter);
> + clear_bit(__AT_RESETTING, &adapter->flags);
> +}
> +
> +static void atl1c_reset_task(struct work_struct *work)
> +{
> + struct atl1c_adapter *adapter;
> + u32 isr_data;
> +
> + adapter = container_of(work, struct atl1c_adapter, reset_task);
> +
> + if (netif_queue_stopped(adapter->netdev) &&
> + netif_carrier_ok(adapter->netdev)) {
> + AT_READ_REG(&adapter->hw, REG_ISR, &isr_data);
> + printk(KERN_EMERG "TX STOPED!\n");
> + printk(KERN_EMERG "reset hardware!\n");
> + printk(KERN_EMERG "ISR is %x\n", isr_data);
> + netif_wake_queue(adapter->netdev);
> + }
> +}

This function doesn't seem to reset the hardware as the name and comments imply. It just reads the ISR and wakes the tx queue.

> +
> +static void atl1c_check_link_status(struct atl1c_adapter *adapter)
> +{
> + struct atl1c_hw *hw = &adapter->hw;
> + struct net_device *netdev = adapter->netdev;
> + struct pci_dev *pdev = adapter->pdev;
> + int err = 0;
> + unsigned long flags;
> + u16 speed, duplex, phy_data;
> +
> + spin_lock_irqsave(&adapter->mdio_lock, flags);
> + /* MII_BMSR must read twise */
> + atl1c_read_phy_reg(hw, MII_BMSR, &phy_data);
> + atl1c_read_phy_reg(hw, MII_BMSR, &phy_data);
> + spin_unlock_irqrestore(&adapter->mdio_lock, flags);
> +
> + if ((phy_data & BMSR_LSTATUS) == 0) {
> + /* link down */
> + if (netif_carrier_ok(netdev)) {
> + hw->hibernate = true;
> + atl1c_set_aspm(hw, false);
> + if (atl1c_stop_mac(hw) != 0)
> + dev_info(&pdev->dev, "stop mac failed\n");
> + }
> + netif_carrier_off(netdev);
> + netif_stop_queue(netdev);
> + } else {
> + /* Link Up */
> + hw->hibernate = false;
> + spin_lock_irqsave(&adapter->mdio_lock, flags);
> + err = atl1c_get_speed_and_duplex(hw, &speed, &duplex);
> + spin_unlock_irqrestore(&adapter->mdio_lock, flags);
> + if (unlikely(err))
> + return;
> + /* link result is our setting */
> + if (adapter->link_speed != speed ||
> + adapter->link_duplex != duplex) {
> + adapter->link_speed = speed;
> + adapter->link_duplex = duplex;
> + atl1c_enable_tx_ctrl(hw);
> + atl1c_enable_rx_ctrl(hw);
> + atl1c_setup_mac_ctrl(adapter);
> + atl1c_set_aspm(hw, true);
> + dev_info(&pdev->dev,
> + "%s: %s NIC Link is Up<%d Mbps %s>\n",
> + atl1c_driver_name, netdev->name,
> + adapter->link_speed,
> + adapter->link_duplex == FULL_DUPLEX ?
> + "Full Duplex" : "Half Duplex");
> + }
> + if (!netif_carrier_ok(netdev)) {
> + netif_carrier_on(netdev);
> + netif_wake_queue(netdev);
> + }
> + }
> +}
> +
> +/*
> + * atl1c_link_chg_task - deal with link change event Out of interrupt context
> + * @netdev: network interface device structure
> + */
> +static void atl1c_link_chg_task(struct work_struct *work)
> +{
> + struct atl1c_adapter *adapter;
> +
> + adapter = container_of(work, struct atl1c_adapter, link_chg_task);
> + atl1c_check_link_status(adapter);
> +}
> +
> +static void atl1c_link_chg_event(struct atl1c_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);
> + atl1c_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
> + atl1c_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 */
> + netif_carrier_off(netdev);
> + netif_stop_queue(netdev);
> + dev_info(&pdev->dev, "%s: %s NIC Link is Down\n",
> + atl1c_driver_name, netdev->name);
> + adapter->link_speed = SPEED_0;
> + }
> + }
> + schedule_work(&adapter->link_chg_task);
> +}
> +
> +static void atl1c_del_timer(struct atl1c_adapter *adapter)
> +{
> + del_timer_sync(&adapter->phy_config_timer);
> +}
> +
> +static void atl1c_cancel_work(struct atl1c_adapter *adapter)
> +{
> + cancel_work_sync(&adapter->reset_task);
> + cancel_work_sync(&adapter->link_chg_task);
> +}
> +
> +/*
> + * atl1c_tx_timeout - Respond to a Tx Hang
> + * @netdev: network interface device structure
> + */
> +static void atl1c_tx_timeout(struct net_device *netdev)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> +
> + /* Do the reset outside of interrupt context */
> + schedule_work(&adapter->reset_task);
> +}
> +
> +/*
> + * atl1c_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 atl1c_set_multi(struct net_device *netdev)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + struct atl1c_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 */
> + AT_READ_REG(hw, REG_MAC_CTRL, &mac_ctrl_data);
> +
> + 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 = atl1c_hash_mc_addr(hw, mc_ptr->dmi_addr);
> + atl1c_hash_set(hw, hash_value);
> + }
> +}
> +
> +static void atl1c_vlan_rx_register(struct net_device *netdev,
> + struct vlan_group *grp)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + struct pci_dev *pdev = adapter->pdev;
> + u32 mac_ctrl_data = 0;
> +
> + dev_dbg(&pdev->dev, "atl1c_vlan_rx_register\n");
> +
> + atl1c_irq_disable(adapter);
> +
> + adapter->vlgrp = grp;
> + AT_READ_REG(&adapter->hw, REG_MAC_CTRL, &mac_ctrl_data);
> +
> + 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);
> + atl1c_irq_enable(adapter);
> +}
> +
> +static void atl1c_restore_vlan(struct atl1c_adapter *adapter)
> +{
> + struct pci_dev *pdev = adapter->pdev;
> +
> + dev_dbg(&pdev->dev, "atl1c_restore_vlan !");
> + atl1c_vlan_rx_register(adapter->netdev, adapter->vlgrp);
> +}
> +/*
> + * atl1c_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 atl1c_set_mac_addr(struct net_device *netdev, void *p)
> +{
> + struct atl1c_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);
> +
> + atl1c_hw_set_mac_addr(&adapter->hw);
> +
> + return 0;
> +}
> +
> +static void atl1c_set_rxbufsize(struct atl1c_adapter *adapter,
> + struct net_device *dev)
> +{
> + int mtu = dev->mtu;
> +
> + adapter->rx_buffer_len = mtu > AT_RX_BUF_SIZE ?
> + roundup(mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN, 8) : AT_RX_BUF_SIZE;
> +}
> +/*
> + * atl1c_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 atl1c_change_mtu(struct net_device *netdev, int new_mtu)
> +{
> + struct atl1c_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;
> + atl1c_set_rxbufsize(adapter, netdev);
> + atl1c_down(adapter);
> + atl1c_up(adapter);
> + clear_bit(__AT_RESETTING, &adapter->flags);
> + if (adapter->hw.ctrl_flags & ATL1C_FPGA_VERSION) {
> + u32 phy_data;
> +
> + AT_READ_REG(&adapter->hw, 0x1414, &phy_data);
> + phy_data |= 0x10000000;
> + AT_WRITE_REG(&adapter->hw, 0x1414, phy_data);
> + }
> +
> + }
> + return 0;
> +}
> +
> +/*
> + * caller should hold mdio_lock
> + */
> +static int atl1c_mdio_read(struct net_device *netdev, int phy_id, int reg_num)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + u16 result;
> +
> + atl1c_read_phy_reg(&adapter->hw, reg_num & MDIO_REG_ADDR_MASK, &result);
> + return result;
> +}
> +
> +static void atl1c_mdio_write(struct net_device *netdev, int phy_id,
> + int reg_num, int val)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> +
> + atl1c_write_phy_reg(&adapter->hw, reg_num & MDIO_REG_ADDR_MASK, val);
> +}
> +
> +/*
> + * atl1c_mii_ioctl -
> + * @netdev:
> + * @ifreq:
> + * @cmd:
> + */
> +static int atl1c_mii_ioctl(struct net_device *netdev,
> + struct ifreq *ifr, int cmd)
> +{
> + struct atl1c_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 (atl1c_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, "<atl1c_mii_ioctl> write %x %x",
> + data->reg_num, data->val_in);
> + if (atl1c_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;
> +
> +}
> +
> +/*
> + * atl1c_ioctl -
> + * @netdev:
> + * @ifreq:
> + * @cmd:
> + */
> +static int atl1c_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
> +{
> + switch (cmd) {
> + case SIOCGMIIPHY:
> + case SIOCGMIIREG:
> + case SIOCSMIIREG:
> + return atl1c_mii_ioctl(netdev, ifr, cmd);
> + default:
> + return -EOPNOTSUPP;
> + }
> +}
> +
> +/*
> + * atl1c_alloc_queues - Allocate memory for all rings
> + * @adapter: board private structure to initialize
> + *
> + */
> +static int __devinit atl1c_alloc_queues(struct atl1c_adapter *adapter)
> +{
> + return 0;
> +}
> +
> +static void atl1c_set_mac_type(struct atl1c_hw *hw)
> +{
> + switch (hw->device_id) {
> + case PCI_DEVICE_ID_ATTANSIC_L2C:
> + hw->nic_type = athr_l2c;
> + break;
> +
> + case PCI_DEVICE_ID_ATTANSIC_L1C:
> + hw->nic_type = athr_l1c;
> + break;
> +
> + default:
> + break;
> + }
> +
> + return;
> +}
> +
> +static int atl1c_setup_mac_funcs(struct atl1c_hw *hw)
> +{
> + u32 phy_status_data;
> + u32 link_ctrl_data;
> +
> + atl1c_set_mac_type(hw);
> + AT_READ_REG(hw, REG_PHY_STATUS, &phy_status_data);
> + AT_READ_REG(hw, REG_LINK_CTRL, &link_ctrl_data);
> +
> + hw->ctrl_flags = ATL1C_INTR_CLEAR_ON_READ |
> + ATL1C_INTR_MODRT_ENABLE |
> + ATL1C_RX_IPV6_CHKSUM |
> + ATL1C_TXQ_MODE_ENHANCE;
> + if (link_ctrl_data & LINK_CTRL_L0S_EN)
> + hw->ctrl_flags |= ATL1C_ASPM_L0S_SUPPORT;
> + if (link_ctrl_data & LINK_CTRL_L1_EN)
> + hw->ctrl_flags |= ATL1C_ASPM_L1_SUPPORT;
> +
> + if (hw->nic_type == athr_l1c) {
> + hw->ctrl_flags |= ATL1C_ASPM_CTRL_MON;
> + hw->ctrl_flags |= ATL1C_LINK_CAP_1000M;
> + }
> + return 0;
> +}
> +/*
> + * atl1c_sw_init - Initialize general software structures (struct atl1c_adapter)
> + * @adapter: board private structure to initialize
> + *
> + * atl1c_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 atl1c_sw_init(struct atl1c_adapter *adapter)
> +{
> + struct atl1c_hw *hw = &adapter->hw;
> + struct pci_dev *pdev = adapter->pdev;
> +
> + hw->vendor_id = pdev->vendor;
> + hw->device_id = pdev->device;
> + hw->subsystem_vendor_id = pdev->subsystem_vendor;
> + hw->subsystem_id = pdev->subsystem_device;
> +
> + /* before link up, we assume hibernate is true */
> + hw->hibernate = true;
> + if (atl1c_setup_mac_funcs(hw) != 0) {
> + dev_err(&pdev->dev, "set mac function pointers failed\n");
> + return -1;
> + }
> + adapter->wol = 0;
> + adapter->link_speed = SPEED_0;
> + adapter->link_duplex = FULL_DUPLEX;
> + adapter->num_rx_queues = AT_DEF_RECEIVE_QUEUE;
> +
> + hw->intr_mask = IMR_NORMAL_MASK;
> + hw->phy_configured = false;
> + hw->preamble_len = 7;
> + hw->max_frame_size = adapter->netdev->mtu;
> + if (adapter->num_rx_queues < 2) {
> + hw->rss_type = atl1c_rss_disable;
> + hw->rss_mode = atl1c_rss_mode_disable;
> + } else {
> + hw->rss_type = atl1c_rss_ipv4;
> + hw->rss_mode = atl1c_rss_mul_que_mul_int;
> + hw->rss_hash_bits = 16;
> + }
> + hw->autoneg_advertised = ADVERTISE_DEFAULT;
> + hw->indirect_tab = 0xE4E4E4E4;
> + hw->base_cpu = 0;
> +
> + hw->ict = 50000; /* 100ms */
> + hw->smb_timer = 200000; /* 400ms */
> + hw->cmb_tpd = 4;
> + hw->cmb_tx_timer = 1; /* 2 us */
> +
> + hw->tpd_burst = 5;
> + hw->rfd_burst = 8;
> + hw->dma_order = atl1c_dma_ord_out;
> + hw->dmar_block = atl1c_dma_req_1024;
> + hw->dmaw_block = atl1c_dma_req_1024;
> + hw->dmar_dly_cnt = 15;
> + hw->dmaw_dly_cnt = 4;
> +
> + if (atl1c_alloc_queues(adapter)) {
> + dev_err(&pdev->dev, "Unable to allocate memory for queues\n");
> + return -ENOMEM;
> + }
> + /* TODO */
> + atl1c_set_rxbufsize(adapter, adapter->netdev);
> + 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;
> +}
> +
> +/*
> + * atl1c_clean_tx_ring - Free Tx-skb
> + * @adapter: board private structure
> + */
> +static void atl1c_clean_tx_ring(struct atl1c_adapter *adapter,
> + enum atl1c_trans_queue type)
> +{
> + struct atl1c_tpd_ring *tpd_ring = &adapter->tpd_ring[type];
> + struct atl1c_buffer *buffer_info;
> + struct pci_dev *pdev = adapter->pdev;
> + u16 index, ring_count;
> +
> + ring_count = tpd_ring->count;
> + for (index = 0; index < ring_count; index++) {
> + buffer_info = &tpd_ring->buffer_info[index];
> + if (buffer_info->state == ATL1_BUFFER_FREE)
> + continue;
> + if (buffer_info->dma)
> + pci_unmap_single(pdev, buffer_info->dma,
> + buffer_info->length,
> + PCI_DMA_TODEVICE);
> + if (buffer_info->skb)
> + dev_kfree_skb(buffer_info->skb);
> + buffer_info->dma = 0;
> + buffer_info->skb = NULL;
> + buffer_info->state = ATL1_BUFFER_FREE;
> + }
> +
> + /* Zero out Tx-buffers */
> + memset(tpd_ring->desc, 0, sizeof(struct atl1c_tpd_desc) *
> + ring_count);
> + atomic_set(&tpd_ring->next_to_clean, 0);
> + tpd_ring->next_to_use = 0;
> +}
> +
> +/*
> + * atl1c_clean_rx_ring - Free rx-reservation skbs
> + * @adapter: board private structure
> + */
> +static void atl1c_clean_rx_ring(struct atl1c_adapter *adapter)
> +{
> + struct atl1c_rfd_ring *rfd_ring = adapter->rfd_ring;
> + struct atl1c_rrd_ring *rrd_ring = adapter->rrd_ring;
> + struct atl1c_buffer *buffer_info;
> + struct pci_dev *pdev = adapter->pdev;
> + int i, j;
> +
> + for (i = 0; i < adapter->num_rx_queues; i++) {
> + for (j = 0; j < rfd_ring[i].count; j++) {
> + buffer_info = &rfd_ring[i].buffer_info[j];
> + if (buffer_info->state == ATL1_BUFFER_FREE)
> + continue;
> + if (buffer_info->dma)
> + pci_unmap_single(pdev, buffer_info->dma,
> + buffer_info->length,
> + PCI_DMA_FROMDEVICE);
> + if (buffer_info->skb)
> + dev_kfree_skb(buffer_info->skb);
> + buffer_info->state = ATL1_BUFFER_FREE;
> + buffer_info->skb = NULL;
> + }
> + /* zero out the descriptor ring */
> + memset(rfd_ring[i].desc, 0, rfd_ring[i].size);
> + rfd_ring[i].next_to_clean = 0;
> + rfd_ring[i].next_to_use = 0;
> + rrd_ring[i].next_to_use = 0;
> + rrd_ring[i].next_to_clean = 0;
> + }
> +}
> +
> +/*
> + * Read / Write Ptr Initialize:
> + */
> +static void atl1c_init_ring_ptrs(struct atl1c_adapter *adapter)
> +{
> + struct atl1c_tpd_ring *tpd_ring = adapter->tpd_ring;
> + struct atl1c_rfd_ring *rfd_ring = adapter->rfd_ring;
> + struct atl1c_rrd_ring *rrd_ring = adapter->rrd_ring;
> + struct atl1c_buffer *buffer_info;
> + int i, j;
> +
> + for (i = 0; i < AT_MAX_TRANSMIT_QUEUE; i++) {
> + tpd_ring[i].next_to_use = 0;
> + atomic_set(&tpd_ring[i].next_to_clean, 0);
> + buffer_info = tpd_ring[i].buffer_info;
> + for (j = 0; j < tpd_ring->count; j++)
> + buffer_info[i].state = ATL1_BUFFER_FREE;
> + }
> + for (i = 0; i < adapter->num_rx_queues; i++) {
> + rfd_ring[i].next_to_use = 0;
> + rfd_ring[i].next_to_clean = 0;
> + rrd_ring[i].next_to_use = 0;
> + rrd_ring[i].next_to_clean = 0;
> + for (j = 0; j < rfd_ring[i].count; j++) {
> + buffer_info = &rfd_ring[i].buffer_info[j];
> + buffer_info->state = ATL1_BUFFER_FREE;
> + }
> + }
> +}
> +
> +/*
> + * atl1c_free_ring_resources - Free Tx / RX descriptor Resources
> + * @adapter: board private structure
> + *
> + * Free all transmit software resources
> + */
> +static void atl1c_free_ring_resources(struct atl1c_adapter *adapter)
> +{
> + struct pci_dev *pdev = adapter->pdev;
> +
> + pci_free_consistent(pdev, adapter->ring_header.size,
> + adapter->ring_header.desc,
> + adapter->ring_header.dma);
> + adapter->ring_header.desc = NULL;
> +
> + /* Note: just free tdp_ring.buffer_info,
> + * it contain rfd_ring.buffer_info, do not double free */
> + if (adapter->tpd_ring[0].buffer_info) {
> + kfree(adapter->tpd_ring[0].buffer_info);
> + adapter->tpd_ring[0].buffer_info = NULL;
> + }
> +}
> +
> +/*
> + * atl1c_setup_mem_resources - allocate Tx / RX descriptor resources
> + * @adapter: board private structure
> + *
> + * Return 0 on success, negative on failure
> + */
> +static int atl1c_setup_ring_resources(struct atl1c_adapter *adapter)
> +{
> + struct pci_dev *pdev = adapter->pdev;
> + struct atl1c_tpd_ring *tpd_ring = adapter->tpd_ring;
> + struct atl1c_rfd_ring *rfd_ring = adapter->rfd_ring;
> + struct atl1c_rrd_ring *rrd_ring = adapter->rrd_ring;
> + struct atl1c_ring_header *ring_header = &adapter->ring_header;
> + int num_rx_queues = adapter->num_rx_queues;
> + int size;
> + int i;
> + int count = 0;
> + int rx_desc_count = 0;
> + u32 offset = 0;
> +
> + rrd_ring[0].count = rfd_ring[0].count;
> + for (i = 1; i < AT_MAX_TRANSMIT_QUEUE; i++)
> + tpd_ring[i].count = tpd_ring[0].count;
> +
> + for (i = 1; i < adapter->num_rx_queues; i++)
> + rfd_ring[i].count = rrd_ring[i].count = rfd_ring[0].count;
> +
> + /* 2 tpd queue, one high priority queue,
> + * another normal priority queue */
> + size = sizeof(struct atl1c_buffer) * (tpd_ring->count * 2 +
> + rfd_ring->count * num_rx_queues);
> + tpd_ring->buffer_info = kzalloc(size, GFP_KERNEL);
> + if (unlikely(!tpd_ring->buffer_info)) {
> + dev_err(&pdev->dev, "kzalloc failed, size = %d\n",
> + size);
> + goto err_nomem;
> + }
> + for (i = 0; i < AT_MAX_TRANSMIT_QUEUE; i++) {
> + tpd_ring[i].buffer_info =
> + (struct atl1c_buffer *) (tpd_ring->buffer_info + count);
> + count += tpd_ring[i].count;
> + }
> +
> + for (i = 0; i < num_rx_queues; i++) {
> + rfd_ring[i].buffer_info =
> + (struct atl1c_buffer *) (tpd_ring->buffer_info + count);
> + count += rfd_ring[i].count;
> + rx_desc_count += rfd_ring[i].count;
> + }
> + /*
> + * real ring DMA buffer
> + * each ring/block may need up to 8 bytes for alignment, hence the
> + * additional bytes tacked onto the end.
> + */
> + ring_header->size = size =
> + sizeof(struct atl1c_tpd_desc) * tpd_ring->count * 2 +
> + sizeof(struct atl1c_rx_free_desc) * rx_desc_count +
> + sizeof(struct atl1c_recv_ret_status) * rx_desc_count +
> + sizeof(struct atl1c_hw_stats) +
> + 8 * 4 + 8 * 2 * num_rx_queues;
> +
> + ring_header->desc = pci_alloc_consistent(pdev, ring_header->size,
> + &ring_header->dma);
> + if (unlikely(!ring_header->desc)) {
> + dev_err(&pdev->dev, "pci_alloc_consistend failed\n");
> + goto err_nomem;
> + }
> + memset(ring_header->desc, 0, ring_header->size);
> + /* init TPD ring */
> +
> + tpd_ring[0].dma = roundup(ring_header->dma, 8);
> + offset = tpd_ring[0].dma - ring_header->dma;
> + for (i = 0; i < AT_MAX_TRANSMIT_QUEUE; i++) {
> + tpd_ring[i].dma = ring_header->dma + offset;
> + tpd_ring[i].desc = (u8 *) ring_header->desc + offset;
> + tpd_ring[i].size =
> + sizeof(struct atl1c_tpd_desc) * tpd_ring[i].count;
> + offset += roundup(tpd_ring[i].size, 8);
> + }
> + /* init RFD ring */
> + for (i = 0; i < num_rx_queues; i++) {
> + rfd_ring[i].dma = ring_header->dma + offset;
> + rfd_ring[i].desc = (u8 *) ring_header->desc + offset;
> + rfd_ring[i].size = sizeof(struct atl1c_rx_free_desc) *
> + rfd_ring[i].count;
> + offset += roundup(rfd_ring[i].size, 8);
> + }
> +
> + /* init RRD ring */
> + for (i = 0; i < num_rx_queues; i++) {
> + rrd_ring[i].dma = ring_header->dma + offset;
> + rrd_ring[i].desc = (u8 *) ring_header->desc + offset;
> + rrd_ring[i].size = sizeof(struct atl1c_recv_ret_status) *
> + rrd_ring[i].count;
> + offset += roundup(rrd_ring[i].size, 8);
> + }
> +
> + adapter->smb.dma = ring_header->dma + offset;
> + adapter->smb.smb = (u8 *)ring_header->desc + offset;
> + return 0;
> +
> +err_nomem:
> + kfree(tpd_ring->buffer_info);
> + return -ENOMEM;
> +}
> +
> +static void atl1c_configure_des_ring(const struct atl1c_adapter *adapter)
> +{
> + struct atl1c_hw *hw = (struct atl1c_hw *)&adapter->hw;
> + struct atl1c_rfd_ring *rfd_ring = (struct atl1c_rfd_ring *)
> + adapter->rfd_ring;
> + struct atl1c_rrd_ring *rrd_ring = (struct atl1c_rrd_ring *)
> + adapter->rrd_ring;
> + struct atl1c_tpd_ring *tpd_ring = (struct atl1c_tpd_ring *)
> + adapter->tpd_ring;
> + struct atl1c_cmb *cmb = (struct atl1c_cmb *) &adapter->cmb;
> + struct atl1c_smb *smb = (struct atl1c_smb *) &adapter->smb;
> + int i;
> +
> + /* TPD */
> + AT_WRITE_REG(hw, REG_TX_BASE_ADDR_HI,
> + (u32)((tpd_ring[atl1c_trans_normal].dma &
> + AT_DMA_HI_ADDR_MASK) >> 32));
> + /* just enable normal priority TX queue */
> + AT_WRITE_REG(hw, REG_NTPD_HEAD_ADDR_LO,
> + (u32)(tpd_ring[atl1c_trans_normal].dma &
> + AT_DMA_LO_ADDR_MASK));
> + AT_WRITE_REG(hw, REG_HTPD_HEAD_ADDR_LO,
> + (u32)(tpd_ring[atl1c_trans_high].dma &
> + AT_DMA_LO_ADDR_MASK));
> + AT_WRITE_REG(hw, REG_TPD_RING_SIZE,
> + (u32)(tpd_ring[0].count & TPD_RING_SIZE_MASK));
> +
> +
> + /* RFD */
> + AT_WRITE_REG(hw, REG_RX_BASE_ADDR_HI,
> + (u32)((rfd_ring[0].dma & AT_DMA_HI_ADDR_MASK) >> 32));
> + for (i = 0; i < adapter->num_rx_queues; i++)
> + AT_WRITE_REG(hw, atl1c_rfd_addr_lo_regs[i],
> + (u32)(rfd_ring[i].dma & AT_DMA_LO_ADDR_MASK));
> +
> + AT_WRITE_REG(hw, REG_RFD_RING_SIZE,
> + rfd_ring[0].count & RFD_RING_SIZE_MASK);
> + AT_WRITE_REG(hw, REG_RX_BUF_SIZE,
> + adapter->rx_buffer_len & RX_BUF_SIZE_MASK);
> +
> + /* RRD */
> + for (i = 0; i < adapter->num_rx_queues; i++)
> + AT_WRITE_REG(hw, atl1c_rrd_addr_lo_regs[i],
> + (u32)(rrd_ring[i].dma & AT_DMA_LO_ADDR_MASK));
> + AT_WRITE_REG(hw, REG_RRD_RING_SIZE,
> + (rrd_ring[0].count & RRD_RING_SIZE_MASK));
> +
> + /* CMB */
> + AT_WRITE_REG(hw, REG_CMB_BASE_ADDR_LO, cmb->dma & AT_DMA_LO_ADDR_MASK);
> +
> + /* SMB */
> + AT_WRITE_REG(hw, REG_SMB_BASE_ADDR_HI,
> + (u32)((smb->dma & AT_DMA_HI_ADDR_MASK) >> 32));
> + AT_WRITE_REG(hw, REG_SMB_BASE_ADDR_LO,
> + (u32)(smb->dma & AT_DMA_LO_ADDR_MASK));
> + /* Load all of base address above */
> + AT_WRITE_REG(hw, REG_LOAD_PTR, 1);
> +
> + return;
> +}
> +
> +static void atl1c_configure_tx(struct atl1c_adapter *adapter)
> +{
> + struct atl1c_hw *hw = (struct atl1c_hw *)&adapter->hw;
> + u32 dev_ctrl_data;
> + u32 max_pay_load;
> + u16 tx_offload_thresh;
> + u32 txq_ctrl_data;
> + u32 extra_size = 0; /* Jumbo frame threshold in QWORD unit */
> +
> + extra_size = ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN;
> + tx_offload_thresh = MAX_TX_OFFLOAD_THRESH;
> + AT_WRITE_REG(hw, REG_TX_TSO_OFFLOAD_THRESH,
> + (tx_offload_thresh >> 3) & TX_TSO_OFFLOAD_THRESH_MASK);
> + AT_READ_REG(hw, REG_DEVICE_CTRL, &dev_ctrl_data);
> + 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);
> +
> + txq_ctrl_data = (hw->tpd_burst & TXQ_NUM_TPD_BURST_MASK) <<
> + TXQ_NUM_TPD_BURST_SHIFT;
> + if (hw->ctrl_flags & ATL1C_TXQ_MODE_ENHANCE)
> + txq_ctrl_data |= TXQ_CTRL_ENH_MODE;
> + txq_ctrl_data |= (atl1c_pay_load_size[hw->dmar_block] &
> + TXQ_TXF_BURST_NUM_MASK) << TXQ_TXF_BURST_NUM_SHIFT;
> +
> + AT_WRITE_REG(hw, REG_TXQ_CTRL, txq_ctrl_data);
> + return;
> +}
> +
> +static void atl1c_configure_rx(struct atl1c_adapter *adapter)
> +{
> + struct atl1c_hw *hw = (struct atl1c_hw *)&adapter->hw;
> + u32 rxq_ctrl_data;
> +
> + rxq_ctrl_data = (hw->rfd_burst & RXQ_RFD_BURST_NUM_MASK) <<
> + RXQ_RFD_BURST_NUM_SHIFT;
> +
> + if (hw->ctrl_flags & ATL1C_RX_IPV6_CHKSUM)
> + rxq_ctrl_data |= IPV6_CHKSUM_CTRL_EN;
> + if (hw->rss_type == atl1c_rss_ipv4)
> + rxq_ctrl_data |= RSS_HASH_IPV4;
> + if (hw->rss_type == atl1c_rss_ipv4_tcp)
> + rxq_ctrl_data |= RSS_HASH_IPV4_TCP;
> + if (hw->rss_type == atl1c_rss_ipv6)
> + rxq_ctrl_data |= RSS_HASH_IPV6;
> + if (hw->rss_type == atl1c_rss_ipv6_tcp)
> + rxq_ctrl_data |= RSS_HASH_IPV6_TCP;
> + if (hw->rss_type != atl1c_rss_disable)
> + rxq_ctrl_data |= RRS_HASH_CTRL_EN;
> +
> + rxq_ctrl_data |= (hw->rss_mode & RSS_MODE_MASK) <<
> + RSS_MODE_SHIFT;
> + rxq_ctrl_data |= (hw->rss_hash_bits & RSS_HASH_BITS_MASK) <<
> + RSS_HASH_BITS_SHIFT;
> + if (hw->ctrl_flags & ATL1C_ASPM_CTRL_MON)
> + rxq_ctrl_data |= (ASPM_THRUPUT_LIMIT_100M &
> + ASPM_THRUPUT_LIMIT_MASK) << ASPM_THRUPUT_LIMIT_SHIFT;
> +
> + AT_WRITE_REG(hw, REG_RXQ_CTRL, rxq_ctrl_data);
> +
> + return;
> +}
> +
> +static void atl1c_configure_rss(struct atl1c_adapter *adapter)
> +{
> + struct atl1c_hw *hw = (struct atl1c_hw *)&adapter->hw;
> +
> + AT_WRITE_REG(hw, REG_IDT_TABLE, hw->indirect_tab);
> + AT_WRITE_REG(hw, REG_BASE_CPU_NUMBER, hw->base_cpu);
> +
> + return;
> +}
> +
> +static void atl1c_configure_dma(struct atl1c_adapter *adapter)
> +{
> + struct atl1c_hw *hw = &adapter->hw;
> + u32 dma_ctrl_data;
> +
> + dma_ctrl_data = DMA_CTRL_DMAR_REQ_PRI;
> + if (hw->ctrl_flags & ATL1C_CMB_ENABLE)
> + dma_ctrl_data |= DMA_CTRL_CMB_EN;
> + if (hw->ctrl_flags & ATL1C_SMB_ENABLE)
> + dma_ctrl_data |= DMA_CTRL_SMB_EN;
> + else
> + dma_ctrl_data |= MAC_CTRL_SMB_DIS;
> +
> + switch (hw->dma_order) {
> + case atl1c_dma_ord_in:
> + dma_ctrl_data |= DMA_CTRL_DMAR_IN_ORDER;
> + break;
> + case atl1c_dma_ord_enh:
> + dma_ctrl_data |= DMA_CTRL_DMAR_ENH_ORDER;
> + break;
> + case atl1c_dma_ord_out:
> + dma_ctrl_data |= DMA_CTRL_DMAR_OUT_ORDER;
> + break;
> + default:
> + break;
> + }
> +
> + 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 |= (((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;
> +}
> +
> +/*
> + * Stop the mac, transmit and receive units
> + * hw - Struct containing variables accessed by shared code
> + * return : 0 or idle status (if error)
> + */
> +static int atl1c_stop_mac(struct atl1c_hw *hw)
> +{
> + u32 data;
> + int timeout;
> +
> + AT_READ_REG(hw, REG_RXQ_CTRL, &data);
> + data &= ~(RXQ1_CTRL_EN | RXQ2_CTRL_EN |
> + RXQ3_CTRL_EN | RXQ_CTRL_EN);
> + AT_WRITE_REG(hw, REG_RXQ_CTRL, data);
> +
> + AT_READ_REG(hw, REG_TXQ_CTRL, &data);
> + data &= ~TXQ_CTRL_EN;
> + AT_WRITE_REG(hw, REG_TWSI_CTRL, data);
> +
> + for (timeout = 0; timeout < AT_HW_MAX_IDLE_DELAY; timeout++) {
> + AT_READ_REG(hw, REG_IDLE_STATUS, &data);
> + if ((data & (IDLE_STATUS_RXQ_NO_IDLE |
> + IDLE_STATUS_TXQ_NO_IDLE)) == 0)
> + break;
> + msleep(1);
> + }
> +
> + AT_READ_REG(hw, REG_MAC_CTRL, &data);
> + data &= ~(MAC_CTRL_TX_EN | MAC_CTRL_RX_EN);
> + AT_WRITE_REG(hw, REG_MAC_CTRL, data);
> +
> + for (timeout = 0; timeout < AT_HW_MAX_IDLE_DELAY; timeout++) {
> + AT_READ_REG(hw, REG_IDLE_STATUS, &data);
> + if ((data & IDLE_STATUS_MASK) == 0)
> + return 0;
> + msleep(1);
> + }
> + return data;
> +}
> +
> +static void atl1c_enable_rx_ctrl(struct atl1c_hw *hw)
> +{
> + u32 data;
> +
> + AT_READ_REG(hw, REG_RXQ_CTRL, &data);
> + switch (hw->adapter->num_rx_queues) {
> + case 4:
> + data |= (RXQ3_CTRL_EN | RXQ2_CTRL_EN | RXQ1_CTRL_EN);
> + break;
> + case 3:
> + data |= (RXQ2_CTRL_EN | RXQ1_CTRL_EN);
> + break;
> + case 2:
> + data |= RXQ1_CTRL_EN;
> + break;
> + default:
> + break;
> + }
> + data |= RXQ_CTRL_EN;
> + AT_WRITE_REG(hw, REG_RXQ_CTRL, data);
> +}
> +
> +static void atl1c_enable_tx_ctrl(struct atl1c_hw *hw)
> +{
> + u32 data;
> +
> + AT_READ_REG(hw, REG_TXQ_CTRL, &data);
> + data |= TXQ_CTRL_EN;
> + AT_WRITE_REG(hw, REG_TXQ_CTRL, data);
> +}
> +
> +/*
> + * 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)
> + */
> +static int atl1c_reset_mac(struct atl1c_hw *hw)
> +{
> + struct atl1c_adapter *adapter = (struct atl1c_adapter *)hw->adapter;
> + struct pci_dev *pdev = adapter->pdev;
> + u32 idle_status_data = 0;
> + int timeout = 0;
> + int ret;
> +
> + AT_WRITE_REG(hw, REG_IMR, 0);
> + AT_WRITE_REG(hw, REG_ISR, ISR_DIS_INT);
> +
> + ret = atl1c_stop_mac(hw);
> + if (ret)
> + return ret;
> + /*
> + * 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_REGW(hw, REG_MASTER_CTRL, MASTER_CTRL_SOFT_RST);
> + msleep(10);
> + wmb();
> + /* Wait at least 10ms for All module to be Idle */
> + for (timeout = 0; timeout < AT_HW_MAX_IDLE_DELAY; timeout++) {
> + AT_READ_REG(hw, REG_IDLE_STATUS, &idle_status_data);
> + if ((idle_status_data & IDLE_STATUS_MASK) == 0)
> + break;
> + msleep(1);
> + }
> + 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;
> +}
> +
> +static void atl1c_disable_l0s_l1(struct atl1c_hw *hw)
> +{
> + u32 pm_ctrl_data;
> +
> + AT_READ_REG(hw, REG_PM_CTRL, &pm_ctrl_data);
> + pm_ctrl_data &= ~(PM_CTRL_L1_ENTRY_TIMER_MASK <<
> + PM_CTRL_L1_ENTRY_TIMER_SHIFT);
> + pm_ctrl_data &= ~PM_CTRL_CLK_SWH_L1;
> + pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN;
> + pm_ctrl_data &= ~PM_CTRL_ASPM_L1_EN;
> + pm_ctrl_data &= ~PM_CTRL_MAC_ASPM_CHK;
> + pm_ctrl_data &= ~PM_CTRL_SERDES_PD_EX_L1;
> +
> + pm_ctrl_data |= PM_CTRL_SERDES_BUDS_RX_L1_EN;
> + pm_ctrl_data |= PM_CTRL_SERDES_PLL_L1_EN;
> + pm_ctrl_data |= PM_CTRL_SERDES_L1_EN;
> + AT_WRITE_REG(hw, REG_PM_CTRL, pm_ctrl_data);
> +}
> +
> +/*
> + * Set ASPM state.
> + * Enable/disable L0s/L1 depend on link state.
> + */
> +static void atl1c_set_aspm(struct atl1c_hw *hw, bool linkup)
> +{
> + u32 pm_ctrl_data;
> +
> + AT_READ_REG(hw, REG_PM_CTRL, &pm_ctrl_data);
> +
> + pm_ctrl_data &= PM_CTRL_SERDES_PD_EX_L1;
> + pm_ctrl_data |= ~PM_CTRL_SERDES_BUDS_RX_L1_EN;
> + pm_ctrl_data |= ~PM_CTRL_SERDES_L1_EN;
> + pm_ctrl_data &= ~(PM_CTRL_L1_ENTRY_TIMER_MASK <<
> + PM_CTRL_L1_ENTRY_TIMER_SHIFT);
> +
> + pm_ctrl_data |= PM_CTRL_MAC_ASPM_CHK;
> +
> + if (linkup) {
> + pm_ctrl_data |= PM_CTRL_SERDES_PLL_L1_EN;
> + pm_ctrl_data &= ~PM_CTRL_CLK_SWH_L1;
> +
> + if (hw->ctrl_flags & ATL1C_ASPM_L1_SUPPORT) {
> + pm_ctrl_data |= AT_ASPM_L1_TIMER <<
> + PM_CTRL_L1_ENTRY_TIMER_SHIFT;
> + pm_ctrl_data |= PM_CTRL_ASPM_L1_EN;
> + } else
> + pm_ctrl_data &= ~PM_CTRL_ASPM_L1_EN;
> +
> + if (hw->ctrl_flags & ATL1C_ASPM_L0S_SUPPORT)
> + pm_ctrl_data |= PM_CTRL_ASPM_L0S_EN;
> + else
> + pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN;
> +
> + } else {
> + pm_ctrl_data &= ~PM_CTRL_ASPM_L0S_EN;
> + pm_ctrl_data &= ~PM_CTRL_SERDES_PLL_L1_EN;
> +
> + pm_ctrl_data |= PM_CTRL_CLK_SWH_L1;
> +
> + if (hw->ctrl_flags & ATL1C_ASPM_L1_SUPPORT)
> + pm_ctrl_data |= PM_CTRL_ASPM_L1_EN;
> + else
> + pm_ctrl_data &= ~PM_CTRL_ASPM_L1_EN;
> + }
> +
> + AT_WRITE_REG(hw, REG_PM_CTRL, pm_ctrl_data);
> +
> + return;
> +}
> +
> +static void atl1c_setup_mac_ctrl(struct atl1c_adapter *adapter)
> +{
> + struct atl1c_hw *hw = &adapter->hw;
> + struct net_device *netdev = adapter->netdev;
> + u32 mac_ctrl_data;
> +
> + mac_ctrl_data = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN;
> + mac_ctrl_data |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW);
> +
> + if (adapter->link_duplex == FULL_DUPLEX) {
> + hw->mac_duplex = true;
> + mac_ctrl_data |= MAC_CTRL_DUPLX;
> + }
> +
> + if (adapter->link_speed == SPEED_1000)
> + hw->mac_speed = atl1c_mac_speed_1000;
> + else
> + hw->mac_speed = atl1c_mac_speed_10_100;
> +
> + mac_ctrl_data |= (hw->mac_speed & MAC_CTRL_SPEED_MASK) <<
> + MAC_CTRL_SPEED_SHIFT;
> +
> + mac_ctrl_data |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
> + mac_ctrl_data |= ((hw->preamble_len & MAC_CTRL_PRMLEN_MASK) <<
> + MAC_CTRL_PRMLEN_SHIFT);
> +
> + if (adapter->vlgrp)
> + mac_ctrl_data |= MAC_CTRL_RMV_VLAN;
> +
> + mac_ctrl_data |= MAC_CTRL_BC_EN;
> + if (netdev->flags & IFF_PROMISC)
> + mac_ctrl_data |= MAC_CTRL_PROMIS_EN;
> + if (netdev->flags & IFF_ALLMULTI)
> + mac_ctrl_data |= MAC_CTRL_MC_ALL_EN;
> +
> + mac_ctrl_data |= MAC_CTRL_SINGLE_PAUSE_EN;
> + AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl_data);
> +}
> +
> +/*
> + * atl1c_configure - Configure Transmit&Receive Unit after Reset
> + * @adapter: board private structure
> + *
> + * Configure the Tx /Rx unit of the MAC after a reset.
> + */
> +static int atl1c_configure(struct atl1c_adapter *adapter)
> +{
> + struct atl1c_hw *hw = &adapter->hw;
> + u32 master_ctrl_data = 0;
> + u32 intr_modrt_data;
> +
> + /* clear interrupt status */
> + AT_WRITE_REG(hw, REG_ISR, 0xFFFFFFFF);
> + /* Clear any WOL status */
> + AT_WRITE_REG(hw, REG_WOL_CTRL, 0);
> + /* set Interrupt Clear Timer
> + * HW will enable self to assert interrupt event to system after
> + * waiting x-time for software to notify it accept interrupt.
> + */
> + AT_WRITE_REG(hw, REG_INT_RETRIG_TIMER,
> + hw->ict & INT_RETRIG_TIMER_MASK);
> +
> + atl1c_configure_des_ring(adapter);
> +
> + if (hw->ctrl_flags & ATL1C_INTR_MODRT_ENABLE) {
> + intr_modrt_data = (hw->tx_imt & IRQ_MODRT_TIMER_MASK) <<
> + IRQ_MODRT_TX_TIMER_SHIFT;
> + intr_modrt_data |= (hw->rx_imt & IRQ_MODRT_TIMER_MASK) <<
> + IRQ_MODRT_RX_TIMER_SHIFT;
> + AT_WRITE_REG(hw, REG_IRQ_MODRT_TIMER_INIT, intr_modrt_data);
> + master_ctrl_data |=
> + MASTER_CTRL_TX_ITIMER_EN | MASTER_CTRL_RX_ITIMER_EN;
> + }
> +
> + if (hw->ctrl_flags & ATL1C_INTR_CLEAR_ON_READ)
> + master_ctrl_data |= MASTER_CTRL_INT_RDCLR;
> +
> + AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl_data);
> +
> + if (hw->ctrl_flags & ATL1C_CMB_ENABLE) {
> + AT_WRITE_REG(hw, REG_CMB_TPD_THRESH,
> + hw->cmb_tpd & CMB_TPD_THRESH_MASK);
> + AT_WRITE_REG(hw, REG_CMB_TX_TIMER,
> + hw->cmb_tx_timer & CMB_TX_TIMER_MASK);
> + }
> +
> + if (hw->ctrl_flags & ATL1C_SMB_ENABLE)
> + AT_WRITE_REG(hw, REG_SMB_STAT_TIMER,
> + hw->smb_timer & SMB_STAT_TIMER_MASK);
> + /* set MTU */
> + AT_WRITE_REG(hw, REG_MTU, hw->max_frame_size + ETH_HLEN +
> + VLAN_HLEN + ETH_FCS_LEN);
> + /* HDS, disable */
> + AT_WRITE_REG(hw, REG_HDS_CTRL, 0);
> +
> + atl1c_configure_tx(adapter);
> + atl1c_configure_rx(adapter);
> + atl1c_configure_rss(adapter);
> + atl1c_configure_dma(adapter);
> +
> + return 0;
> +}
> +
> +static void atl1c_update_hw_stats(struct atl1c_adapter *adapter)
> +{
> + u16 hw_reg_addr = 0;
> + unsigned long *stats_item = NULL;
> + u32 data;
> +
> + /* 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) {
> + AT_READ_REG(&adapter->hw, hw_reg_addr, &data);
> + *stats_item += data;
> + 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) {
> + AT_READ_REG(&adapter->hw, hw_reg_addr, &data);
> + *stats_item += data;
> + stats_item++;
> + hw_reg_addr += 4;
> + }
> +}
> +
> +/*
> + * atl1c_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 *atl1c_get_stats(struct net_device *netdev)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + struct atl1c_hw_stats *hw_stats = &adapter->hw_stats;
> + struct net_device_stats *net_stats = &adapter->net_stats;
> +
> + atl1c_update_hw_stats(adapter);
> + 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 inline void atl1c_clear_phy_int(struct atl1c_adapter *adapter)
> +{
> + u16 phy_data;
> +
> + spin_lock(&adapter->mdio_lock);
> + atl1c_read_phy_reg(&adapter->hw, MII_ISR, &phy_data);
> + spin_unlock(&adapter->mdio_lock);
> +}
> +
> +static bool atl1c_clean_tx_irq(struct atl1c_adapter *adapter,
> + enum atl1c_trans_queue type)
> +{
> + struct atl1c_tpd_ring *tpd_ring = (struct atl1c_tpd_ring *)
> + &adapter->tpd_ring[type];
> + struct atl1c_buffer *buffer_info;
> + u16 next_to_clean = atomic_read(&tpd_ring->next_to_clean);
> + u16 hw_next_to_clean;
> + u16 shift;
> + u32 data;
> +
> + if (type == atl1c_trans_high)
> + shift = MB_HTPD_CONS_IDX_SHIFT;
> + else
> + shift = MB_NTPD_CONS_IDX_SHIFT;
> +
> + AT_READ_REG(&adapter->hw, REG_MB_PRIO_CONS_IDX, &data);
> + hw_next_to_clean = (data >> shift) & MB_PRIO_PROD_IDX_MASK;
> +
> + while (next_to_clean != hw_next_to_clean) {
> + buffer_info = &tpd_ring->buffer_info[next_to_clean];
> + if (buffer_info->state == ATL1_BUFFER_BUSY) {
> + pci_unmap_page(adapter->pdev, buffer_info->dma,
> + buffer_info->length, PCI_DMA_TODEVICE);
> + buffer_info->dma = 0;
> + if (buffer_info->skb) {
> + dev_kfree_skb_irq(buffer_info->skb);
> + buffer_info->skb = NULL;
> + }
> + buffer_info->state = ATL1_BUFFER_FREE;
> + }
> + if (++next_to_clean == tpd_ring->count)
> + next_to_clean = 0;
> + atomic_set(&tpd_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;
> +}
> +
> +/*
> + * atl1c_intr - Interrupt Handler
> + * @irq: interrupt number
> + * @data: pointer to a network interface device structure
> + * @pt_regs: CPU registers structure
> + */
> +static irqreturn_t atl1c_intr(int irq, void *data)
> +{
> + struct net_device *netdev = data;
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + struct pci_dev *pdev = adapter->pdev;
> + struct atl1c_hw *hw = &adapter->hw;
> + int max_ints = AT_MAX_INT_WORK;
> + int handled = IRQ_NONE;
> + u32 status;
> + u32 reg_data;
> +
> + do {
> + AT_READ_REG(hw, REG_ISR, &reg_data);
> + status = reg_data & hw->intr_mask;
> +
> + if (status == 0 || (status & ISR_DIS_INT) != 0) {
> + if (max_ints != AT_MAX_INT_WORK)
> + handled = IRQ_HANDLED;
> + break;
> + }
> + /* link event */
> + if (status & ISR_GPHY)
> + atl1c_clear_phy_int(adapter);
> + /* Ack ISR */
> + AT_WRITE_REG(hw, REG_ISR, status | ISR_DIS_INT);
> + if (status & ISR_RX_PKT) {
> + if (likely(napi_schedule_prep(&adapter->napi))) {
> + hw->intr_mask &= ~ISR_RX_PKT;
> + AT_WRITE_REG(hw, REG_IMR, hw->intr_mask);
> + __napi_schedule(&adapter->napi);
> + }
> + }
> + if (status & ISR_TX_PKT)
> + atl1c_clean_tx_irq(adapter, atl1c_trans_normal);
> +
> + handled = IRQ_HANDLED;
> + /* check if PCIE PHY Link down */
> + if (status & ISR_ERROR) {
> + dev_err(&pdev->dev,
> + "atl1c hardware error (status = 0x%x)\n",
> + status & ISR_ERROR);
> + /* reset MAC */
> + hw->intr_mask &= ~ISR_ERROR;
> + AT_WRITE_REG(hw, REG_IMR, hw->intr_mask);
> + schedule_work(&adapter->reset_task);
> + break;
> + }
> +
> + if (status & ISR_OVER)
> + dev_err(&pdev->dev,
> + "TX/RX over flow (status = 0x%x)\n",
> + status & ISR_OVER);
> +
> + /* link event */
> + if (status & (ISR_GPHY | ISR_MANUAL)) {
> + adapter->net_stats.tx_carrier_errors++;
> + atl1c_link_chg_event(adapter);
> + break;
> + }
> +
> + } while (--max_ints > 0);
> + /* re-enable Interrupt*/
> + AT_WRITE_REG(&adapter->hw, REG_ISR, 0);
> + return handled;
> +}
> +
> +static inline void atl1c_rx_checksum(struct atl1c_adapter *adapter,
> + struct sk_buff *skb, struct atl1c_recv_ret_status *prrs)
> +{
> + /*
> + * The pid field in RRS in not correct sometimes, so we
> + * cannot figure out if the packet is fragmented or not,
> + * so we tell the KERNEL CHECKSUM_NONE
> + */
> + skb->ip_summed = CHECKSUM_NONE;
> +
> + return;
> +}
> +
> +static int atl1c_alloc_rx_buffer(struct atl1c_adapter *adapter, const int ringid)
> +{
> + struct atl1c_rfd_ring *rfd_ring = &adapter->rfd_ring[ringid];
> + struct pci_dev *pdev = adapter->pdev;
> + struct atl1c_buffer *buffer_info, *next_info;
> + struct sk_buff *skb;
> + void *vir_addr = NULL;
> + u16 num_alloc = 0;
> + u16 rfd_next_to_use, next_next;
> + struct atl1c_rx_free_desc *rfd_desc;
> +
> + next_next = rfd_next_to_use = rfd_ring->next_to_use;
> + if (++next_next == rfd_ring->count)
> + next_next = 0;
> + buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
> + next_info = &rfd_ring->buffer_info[next_next];
> +
> + while (next_info->state == ATL1_BUFFER_FREE) {
> + rfd_desc = ATL1C_RFD_DESC(rfd_ring, rfd_next_to_use);
> +
> + skb = dev_alloc_skb(adapter->rx_buffer_len);
> + if (unlikely(!skb)) {
> + dev_dbg(&pdev->dev, "alloc rx buffer failed\n");
> + break;
> + }
> +
> + /*
> + * Make buffer alignment 2 beyond a 16 byte boundary
> + * this will result in a 16 byte aligned IP header after
> + * the 14 byte MAC header is removed
> + */
> + vir_addr = skb->data;
> + buffer_info->state = ATL1_BUFFER_BUSY;
> + buffer_info->skb = skb;
> + buffer_info->length = adapter->rx_buffer_len;
> + buffer_info->dma = pci_map_single(pdev, vir_addr,
> + buffer_info->length,
> + PCI_DMA_FROMDEVICE);
> + rfd_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
> + rfd_next_to_use = next_next;
> + if (++next_next == rfd_ring->count)
> + next_next = 0;
> + buffer_info = &rfd_ring->buffer_info[rfd_next_to_use];
> + next_info = &rfd_ring->buffer_info[next_next];
> + num_alloc++;
> + }
> +
> + if (num_alloc) {
> + /* TODO: update mailbox here */
> + wmb();
> + rfd_ring->next_to_use = rfd_next_to_use;
> + AT_WRITE_REG(&adapter->hw, atl1c_rfd_prod_idx_regs[ringid],
> + rfd_ring->next_to_use & MB_RFDX_PROD_IDX_MASK);
> + }
> +
> + return num_alloc;
> +}
> +
> +static void atl1c_clean_rrd(struct atl1c_rrd_ring *rrd_ring,
> + struct atl1c_recv_ret_status *rrs, u16 num)
> +{
> + u16 i;
> + /* the relationship between rrd and rfd is one map one */
> + for (i = 0; i < num; i++, rrs = ATL1C_RRD_DESC(rrd_ring,
> + rrd_ring->next_to_clean)) {
> + rrs->word3 &= ~RRS_RXD_UPDATED;
> + if (++rrd_ring->next_to_clean == rrd_ring->count)
> + rrd_ring->next_to_clean = 0;
> + }
> + return;
> +}
> +
> +static void atl1c_clean_rfd(struct atl1c_rfd_ring *rfd_ring,
> + struct atl1c_recv_ret_status *rrs, u16 num)
> +{
> + u16 i;
> + u16 rfd_index;
> + struct atl1c_buffer *buffer_info = rfd_ring->buffer_info;
> +
> + rfd_index = (rrs->word0 >> RRS_RX_RFD_INDEX_SHIFT) &
> + RRS_RX_RFD_INDEX_MASK;
> + for (i = 0; i < num; i++) {
> + buffer_info[rfd_index].skb = NULL;
> + buffer_info[rfd_index].state = ATL1_BUFFER_FREE;
> + if (++rfd_index == rfd_ring->count)
> + rfd_index = 0;
> + }
> + rfd_ring->next_to_clean = rfd_index;
> +
> + return;
> +}
> +
> +static void atl1c_clean_rx_irq(struct atl1c_adapter *adapter, u8 que,
> + int *work_done, int work_to_do)
> +{
> + u16 rfd_num, rfd_index;
> + u16 count = 0;
> + u16 length;
> + struct pci_dev *pdev = adapter->pdev;
> + struct net_device *netdev = adapter->netdev;
> + struct atl1c_rfd_ring *rfd_ring = &adapter->rfd_ring[que];
> + struct atl1c_rrd_ring *rrd_ring = &adapter->rrd_ring[que];
> + struct sk_buff *skb;
> + struct atl1c_recv_ret_status *rrs;
> + struct atl1c_buffer *buffer_info;
> +
> + while (1) {
> + if (*work_done >= work_to_do)
> + break;
> + rrs = ATL1C_RRD_DESC(rrd_ring, rrd_ring->next_to_clean);
> + if (likely(RRS_RXD_IS_VALID(rrs->word3))) {
> + rfd_num = (rrs->word0 >> RRS_RX_RFD_CNT_SHIFT) &
> + RRS_RX_RFD_CNT_MASK;
> + if (unlikely(rfd_num) != 1)
> + /* TODO support mul rfd*/
> + printk(KERN_EMERG "Multi rfd not support yet!\n");

"Multiple rfd not supported"

> + goto rrs_checked;
> + } else {
> + break;
> + }
> +rrs_checked:
> + atl1c_clean_rrd(rrd_ring, rrs, rfd_num);
> + if (rrs->word3 & (RRS_RX_ERR_SUM | RRS_802_3_LEN_ERR)) {
> + atl1c_clean_rfd(rfd_ring, rrs, rfd_num);
> + printk(KERN_WARNING "wrong packet! rrs word3 is %x\n", rrs->word3);
> + continue;
> + }
> +
> + length = le16_to_cpu((rrs->word3 >> RRS_PKT_SIZE_SHIFT) &
> + RRS_PKT_SIZE_MASK);
> + /* Good Receive */
> + if (likely(rfd_num == 1)) {
> + rfd_index = (rrs->word0 >> RRS_RX_RFD_INDEX_SHIFT) &
> + RRS_RX_RFD_INDEX_MASK;
> + buffer_info = &rfd_ring->buffer_info[rfd_index];
> + pci_unmap_single(pdev, buffer_info->dma,
> + buffer_info->length, PCI_DMA_FROMDEVICE);
> + skb = buffer_info->skb;
> + } else {
> + /* TODO */
> + printk(KERN_EMERG "Multil rfd not support yet!\n");

"Multiple rfd not supported"

> + break;
> + }
> + atl1c_clean_rfd(rfd_ring, rrs, rfd_num);
> + skb_put(skb, length - ETH_FCS_LEN);
> + skb->protocol = eth_type_trans(skb, netdev);
> + skb->dev = netdev;
> + atl1c_rx_checksum(adapter, skb, rrs);
> + if (unlikely(adapter->vlgrp) && rrs->word3 & RRS_VLAN_INS) {
> + u16 vlan;
> +
> + AT_TAG_TO_VLAN(rrs->vlan_tag, vlan);
> + vlan_hwaccel_receive_skb(skb, adapter->vlgrp, vlan);
> + } else
> + netif_receive_skb(skb);
> +
> + netdev->last_rx = jiffies;
> + (*work_done)++;
> + count++;
> + }
> + if (count)
> + atl1c_alloc_rx_buffer(adapter, que);
> +}
> +
> +/*
> + * atl1c_clean - NAPI Rx polling callback
> + * @adapter: board private structure
> + */
> +static int atl1c_clean(struct napi_struct *napi, int budget)
> +{
> + struct atl1c_adapter *adapter =
> + container_of(napi, struct atl1c_adapter, napi);
> + int work_done = 0;
> + int i;
> +
> + /* Keep link state information with original netdev */
> + if (!netif_carrier_ok(adapter->netdev))
> + goto quit_polling;
> +
> + for (i = 0; i < adapter->num_rx_queues; i++)
> + atl1c_clean_rx_irq(adapter, i, &work_done, budget);
> +
> + if (work_done < budget) {
> +quit_polling:
> + napi_complete(napi);
> + adapter->hw.intr_mask |= ISR_RX_PKT;
> + AT_WRITE_REG(&adapter->hw, REG_IMR, adapter->hw.intr_mask);
> + }
> + 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 atl1c_netpoll(struct net_device *netdev)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> +
> + disable_irq(adapter->pdev->irq);
> + atl1c_intr(adapter->pdev->irq, netdev);
> + enable_irq(adapter->pdev->irq);
> +}
> +#endif
> +
> +static inline u16 atl1c_tpd_avail(struct atl1c_adapter *adapter, enum atl1c_trans_queue type)
> +{
> + struct atl1c_tpd_ring *tpd_ring = &adapter->tpd_ring[type];
> + u16 next_to_use = 0;
> + u16 next_to_clean = 0;

Unnecessary initialization. (Lots of other places, too.)

> +
> + next_to_clean = atomic_read(&tpd_ring->next_to_clean);
> + next_to_use = tpd_ring->next_to_use;
> +
> + return (u16)(next_to_clean > next_to_use) ?
> + (next_to_clean - next_to_use - 1) :
> + (tpd_ring->count + next_to_clean - next_to_use - 1);
> +}
> +
> +/*
> + * get next usable tpd
> + * Note: should call atl1c_tdp_avail to make sure
> + * there is enough tpd to use
> + */
> +static struct atl1c_tpd_desc *atl1c_get_tpd(struct atl1c_adapter *adapter,
> + enum atl1c_trans_queue type)
> +{
> + struct atl1c_tpd_ring *tpd_ring = &adapter->tpd_ring[type];
> + struct atl1c_tpd_desc *tpd_desc;
> + u16 next_to_use = 0;
> +
> + next_to_use = tpd_ring->next_to_use;
> + if (++tpd_ring->next_to_use == tpd_ring->count)
> + tpd_ring->next_to_use = 0;
> + tpd_desc = ATL1C_TPD_DESC(tpd_ring, next_to_use);
> + memset(tpd_desc, 0, sizeof(struct atl1c_tpd_desc));
> + return tpd_desc;
> +}
> +
> +static struct atl1c_buffer *
> +atl1c_get_tx_buffer(struct atl1c_adapter *adapter, struct atl1c_tpd_desc *tpd)
> +{
> + struct atl1c_tpd_ring *tpd_ring = adapter->tpd_ring;
> +
> + return &tpd_ring->buffer_info[tpd -
> + (struct atl1c_tpd_desc *)tpd_ring->desc];
> +}
> +
> +/* Calculate the transmit packet descript needed*/
> +static u16 atl1c_cal_tpd_req(const struct sk_buff *skb)
> +{
> + int i = 0;
> + u16 tpd_req = 1;
> + u16 proto_hdr_len = 0;
> +
> + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
> + tpd_req++;
> +
> + if (skb_is_gso(skb)) {
> + proto_hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
> + if (proto_hdr_len < skb_headlen(skb))
> + tpd_req++;
> + if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
> + tpd_req++;
> + }
> + return tpd_req;
> +}
> +
> +static int atl1c_tso_csum(struct atl1c_adapter *adapter,
> + struct sk_buff *skb,
> + struct atl1c_tpd_desc **tpd,
> + enum atl1c_trans_queue type)
> +{
> + 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;
> + tcp_hdr(skb)->check = ~csum_tcpudp_magic(
> + ip_hdr(skb)->saddr,
> + ip_hdr(skb)->daddr,
> + 0, IPPROTO_TCP, 0);
> + (*tpd)->word1 |= 1 << TPD_IPV4_PACKET_SHIFT;
> + }
> + }
> +
> + if (offload_type & SKB_GSO_TCPV6) {
> + struct atl1c_tpd_ext_desc *etpd =
> + *(struct atl1c_tpd_ext_desc **)(tpd);
> +
> + memset(etpd, 0, sizeof(struct atl1c_tpd_ext_desc));
> + *tpd = atl1c_get_tpd(adapter, type);
> + ipv6_hdr(skb)->payload_len = 0;
> + /* 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);
> + etpd->word1 |= 1 << TPD_LSO_EN_SHIFT;
> + etpd->word1 |= 1 << TPD_LSO_VER_SHIFT;
> + etpd->pkt_len = cpu_to_le32(skb->len);
> + (*tpd)->word1 |= 1 << TPD_LSO_VER_SHIFT;
> + }
> +
> + (*tpd)->word1 |= 1 << TPD_LSO_EN_SHIFT;
> + (*tpd)->word1 |= (skb_transport_offset(skb) & TPD_TCPHDR_OFFSET_MASK) <<
> + TPD_TCPHDR_OFFSET_SHIFT;
> + (*tpd)->word1 |= (skb_shinfo(skb)->gso_size & TPD_MSS_MASK) <<
> + TPD_MSS_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");

s/pay load/payload
s/ant/an

> + return -1;
> + } else {
> + css = cso + skb->csum_offset;
> +
> + (*tpd)->word1 |= ((cso >> 1) & TPD_PLOADOFFSET_MASK) <<
> + TPD_PLOADOFFSET_SHIFT;
> + (*tpd)->word1 |= ((css >> 1) & TPD_CCSUM_OFFSET_MASK) <<
> + TPD_CCSUM_OFFSET_SHIFT;
> + (*tpd)->word1 |= 1 << TPD_CCSUM_EN_SHIFT;
> + }
> + }
> + return 0;
> +}
> +
> +static void atl1c_tx_map(struct atl1c_adapter *adapter,
> + struct sk_buff *skb, struct atl1c_tpd_desc *tpd,
> + enum atl1c_trans_queue type)
> +{
> + struct atl1c_tpd_desc *use_tpd = NULL;
> + struct atl1c_buffer *buffer_info = 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 tso;
> +
> + nr_frags = skb_shinfo(skb)->nr_frags;
> + tso = (tpd->word1 >> TPD_LSO_EN_SHIFT) & TPD_LSO_EN_MASK;
> + if (tso) {
> + /* TSO */
> + map_len = hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
> + use_tpd = tpd;
> +
> + buffer_info = atl1c_get_tx_buffer(adapter, use_tpd);
> + buffer_info->length = map_len;
> + buffer_info->dma = pci_map_single(adapter->pdev,
> + skb->data, hdr_len, PCI_DMA_TODEVICE);
> + buffer_info->state = ATL1_BUFFER_BUSY;
> + if (buffer_info->dma == 0) {
> + printk(KERN_EMERG "buffer_info dma is 0\n");
> + dump_stack();

BUG_ON?

> + }
> + mapped_len += map_len;
> + use_tpd->buffer_addr = cpu_to_le64(buffer_info->dma);
> + use_tpd->buffer_len = cpu_to_le16(buffer_info->length);
> + }
> +
> + if (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 = atl1c_get_tpd(adapter, type);
> + memcpy(use_tpd, tpd, sizeof(struct atl1c_tpd_desc));
> + use_tpd = atl1c_get_tpd(adapter, type);
> + memcpy(use_tpd, tpd, sizeof(struct atl1c_tpd_desc));
> + }
> + buffer_info = atl1c_get_tx_buffer(adapter, use_tpd);
> + buffer_info->length = buf_len - mapped_len;
> + buffer_info->dma =
> + pci_map_single(adapter->pdev, skb->data + mapped_len,
> + buffer_info->length, PCI_DMA_TODEVICE);
> + buffer_info->state = ATL1_BUFFER_BUSY;
> + if (buffer_info->dma == 0) {
> + printk(KERN_EMERG "buffer_info dma is 0\n");
> + dump_stack();

BUG_ON?

> + }
> +
> + use_tpd->buffer_addr = cpu_to_le64(buffer_info->dma);
> + use_tpd->buffer_len = cpu_to_le16(buffer_info->length);
> + }
> +
> + for (f = 0; f < nr_frags; f++) {
> + struct skb_frag_struct *frag;
> +
> + frag = &skb_shinfo(skb)->frags[f];
> +
> + use_tpd = atl1c_get_tpd(adapter, type);
> + memcpy(use_tpd, tpd, sizeof(struct atl1c_tpd_desc));
> +
> + buffer_info = atl1c_get_tx_buffer(adapter, use_tpd);
> + buffer_info->length = frag->size;
> + buffer_info->dma =
> + pci_map_page(adapter->pdev, frag->page,
> + frag->page_offset,
> + buffer_info->length,
> + PCI_DMA_TODEVICE);
> + buffer_info->state = ATL1_BUFFER_BUSY;
> + if (buffer_info->dma == 0) {
> + printk(KERN_EMERG "buffer_info dma is 0\n");
> + dump_stack();
> + }

BUG_ON?

> +
> + use_tpd->buffer_addr = cpu_to_le64(buffer_info->dma);
> + use_tpd->buffer_len = cpu_to_le16(buffer_info->length);
> + }
> +
> + /* The last tpd */
> + use_tpd->word1 |= 1 << TPD_EOP_SHIFT;
> + /* The last buffer info contain the skb address,
> + so it will be free after unmap */
> + buffer_info->skb = skb;
> +}
> +
> +static void atl1c_tx_queue(struct atl1c_adapter *adapter, struct sk_buff *skb,
> + struct atl1c_tpd_desc *tpd, enum atl1c_trans_queue type)
> +{
> + struct atl1c_tpd_ring *tpd_ring = &adapter->tpd_ring[type];
> + u32 prod_data;
> + wmb();
> + AT_READ_REG(&adapter->hw, REG_MB_PRIO_PROD_IDX, &prod_data);
> + switch (type) {
> + case atl1c_trans_high:
> + prod_data &= 0xFFFF0000;
> + prod_data |= tpd_ring->next_to_use & 0xFFFF;
> + break;
> + case atl1c_trans_normal:
> + prod_data &= 0x0000FFFF;
> + prod_data |= (tpd_ring->next_to_use & 0xFFFF) << 16;
> + break;
> + default:
> + break;
> + }
> +
> + AT_WRITE_REG(&adapter->hw, REG_MB_PRIO_PROD_IDX, prod_data);
> +}
> +
> +static int atl1c_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + unsigned long flags;
> + u16 tpd_req = 1;
> + struct atl1c_tpd_desc *tpd;
> + enum atl1c_trans_queue type = atl1c_trans_normal;
> +
> + if (test_bit(__AT_DOWN, &adapter->flags)) {
> + dev_kfree_skb_any(skb);
> + return NETDEV_TX_OK;
> + }
> +
> + tpd_req = atl1c_cal_tpd_req(skb);
> + if (!spin_trylock_irqsave(&adapter->tx_lock, flags)) {
> + printk(KERN_EMERG "TX locked!\n");
> + return NETDEV_TX_LOCKED;
> + }
> + if (skb->mark == 0x01)
> + type = atl1c_trans_high;
> + else
> + type = atl1c_trans_normal;
> +
> + if (atl1c_tpd_avail(adapter, type) < tpd_req) {
> + /* no enough descriptor, just stop queue */
> + netif_stop_queue(netdev);
> + spin_unlock_irqrestore(&adapter->tx_lock, flags);
> + return NETDEV_TX_BUSY;
> + }
> +
> + tpd = atl1c_get_tpd(adapter, type);
> +
> + /* do TSO and check sum */
> + if (atl1c_tso_csum(adapter, skb, &tpd, type) != 0) {
> + spin_unlock_irqrestore(&adapter->tx_lock, flags);
> + dev_kfree_skb_any(skb);
> + return NETDEV_TX_OK;
> + }
> +
> + if (unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) {
> + u16 vlan = vlan_tx_tag_get(skb);
> + u16 tag;
> + AT_VLAN_TO_TAG(vlan, tag);
> + tpd->word1 |= 1 << TPD_INS_VTAG_SHIFT;
> + tpd->vlan_tag = tag;
> + }
> +
> + if (skb_network_offset(skb) != ETH_HLEN)
> + tpd->word1 |= 1 << TPD_ETH_TYPE_SHIFT; /* Ethernet frame */
> +
> + atl1c_tx_map(adapter, skb, tpd, type);
> + atl1c_tx_queue(adapter, skb, tpd, type);
> +
> + netdev->trans_start = jiffies;
> + spin_unlock_irqrestore(&adapter->tx_lock, flags);
> + return NETDEV_TX_OK;
> +}
> +
> +static void atl1c_free_irq(struct atl1c_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 atl1c_request_irq(struct atl1c_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, &atl1c_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, "atl1c_request_irq OK\n");
> + return err;
> +}
> +
> +int atl1c_up(struct atl1c_adapter *adapter)
> +{
> + struct net_device *netdev = adapter->netdev;
> + int num;
> + int err;
> + int i;
> +
> + netif_carrier_off(netdev);
> + atl1c_init_ring_ptrs(adapter);
> + atl1c_set_multi(netdev);
> + atl1c_restore_vlan(adapter);
> +
> + for (i = 0; i < adapter->num_rx_queues; i++) {
> + num = atl1c_alloc_rx_buffer(adapter, i);
> + if (unlikely(num == 0)) {
> + err = -ENOMEM;
> + goto err_alloc_rx;
> + }
> + }
> +
> + if (atl1c_configure(adapter)) {
> + err = -EIO;
> + goto err_up;
> + }
> +
> + err = atl1c_request_irq(adapter);
> + if (unlikely(err))
> + goto err_up;
> +
> + clear_bit(__AT_DOWN, &adapter->flags);
> + napi_enable(&adapter->napi);
> + atl1c_irq_enable(adapter);
> + atl1c_check_link_status(adapter);
> + netif_start_queue(netdev);
> + return err;
> +
> +err_up:
> +err_alloc_rx:
> + atl1c_clean_rx_ring(adapter);
> + return err;
> +}
> +
> +void atl1c_down(struct atl1c_adapter *adapter)
> +{
> + struct net_device *netdev = adapter->netdev;
> +
> + atl1c_del_timer(adapter);
> + atl1c_cancel_work(adapter);
> +
> + /* signal that we're down so the interrupt handler does not
> + * reschedule our watchdog timer */
> + set_bit(__AT_DOWN, &adapter->flags);
> + netif_carrier_off(netdev);
> + netif_stop_queue(netdev);
> + napi_disable(&adapter->napi);
> + atl1c_irq_disable(adapter);
> + atl1c_free_irq(adapter);
> + AT_WRITE_REG(&adapter->hw, REG_ISR, ISR_DIS_INT);
> + /* reset MAC to disable all RX/TX */
> + atl1c_reset_mac(&adapter->hw);
> + msleep(1);
> +
> + adapter->link_speed = SPEED_0;
> + adapter->link_duplex = -1;
> + atl1c_clean_tx_ring(adapter, atl1c_trans_normal);
> + atl1c_clean_tx_ring(adapter, atl1c_trans_high);
> + atl1c_clean_rx_ring(adapter);
> +}
> +
> +/*
> + * atl1c_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 atl1c_open(struct net_device *netdev)
> +{
> + struct atl1c_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 */
> + err = atl1c_setup_ring_resources(adapter);
> + if (unlikely(err))
> + return err;
> +
> + err = atl1c_up(adapter);
> + if (unlikely(err))
> + goto err_up;
> +
> + if (adapter->hw.ctrl_flags & ATL1C_FPGA_VERSION) {
> + u32 phy_data;
> +
> + AT_READ_REG(&adapter->hw, 0x1414, &phy_data);
> + phy_data |= 0x10000000;
> + AT_WRITE_REG(&adapter->hw, 0x1414, phy_data);

Please use the defined constant, REG_MDIO_CTRL.

> + }
> + return 0;
> +
> +err_up:
> + atl1c_free_irq(adapter);
> + atl1c_free_ring_resources(adapter);
> + atl1c_reset_mac(&adapter->hw);
> + return err;
> +}
> +
> +/*
> + * atl1c_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 atl1c_close(struct net_device *netdev)
> +{
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> +
> + WARN_ON(test_bit(__AT_RESETTING, &adapter->flags));
> + atl1c_down(adapter);
> + atl1c_free_ring_resources(adapter);
> + return 0;
> +}
> +
> +#ifdef CONFIG_PM
> +static int atl1c_suspend(struct pci_dev *pdev, pm_message_t state)
> +{
> + struct net_device *netdev = pci_get_drvdata(pdev);
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> + struct atl1c_hw *hw = &adapter->hw;
> + u32 ctrl = 0;
> + u32 mac_ctrl_data = 0;
> + u32 master_ctrl_data = 0;
> + u32 wol_ctrl_data = 0;
> + u32 pm_data;
> + u16 mii_bmsr_data = 0;
> + u16 save_autoneg_advertised;
> + u16 mii_intr_status_data = 0;
> + u32 wufc = adapter->wol;
> + u32 i;
> +#ifdef CONFIG_PM
> + int retval = 0;
> +#endif

Unnecessary ifdef/endif.

> +
> + if (netif_running(netdev)) {
> + WARN_ON(test_bit(__AT_RESETTING, &adapter->flags));
> + atl1c_down(adapter);
> + }
> + netif_device_detach(netdev);
> + atl1c_disable_l0s_l1(hw);
> +#ifdef CONFIG_PM
> + retval = pci_save_state(pdev);
> + if (retval)
> + return retval;
> +#endif

Unnecessary ifdef/endif.

> + if (wufc) {
> + AT_READ_REG(hw, REG_MASTER_CTRL, &master_ctrl_data);
> + master_ctrl_data &= ~MASTER_CTRL_CLK_SEL_DIS;
> +
> + /* get link status */
> + atl1c_read_phy_reg(hw, MII_BMSR, (u16 *)&mii_bmsr_data);
> + atl1c_read_phy_reg(hw, MII_BMSR, (u16 *)&mii_bmsr_data);
> + save_autoneg_advertised = hw->autoneg_advertised;
> + hw->autoneg_advertised = ADVERTISE_10_HALF;
> + if (atl1c_restart_autoneg(hw) != 0)
> + dev_dbg(&pdev->dev, "phy autoneg failed\n");
> + hw->phy_configured = false; /* re-init PHY when resume */
> + hw->autoneg_advertised = save_autoneg_advertised;
> + /* 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) {
> + for (i = 0; i < AT_SUSPEND_LINK_TIMEOUT; i++) {
> + msleep(100);
> + atl1c_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",
> + atl1c_driver_name);
> + wol_ctrl_data |= WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN;
> + /* only link up can wake up */
> + if (atl1c_write_phy_reg(hw, MII_IER, IER_LINK_UP) != 0) {
> + dev_dbg(&pdev->dev, "%s: read write phy "
> + "register failed.\n",
> + atl1c_driver_name);
> + goto wol_dis;
> + }
> + }
> + /* clear phy interrupt */
> + atl1c_read_phy_reg(hw, MII_ISR, &mii_intr_status_data);
> + /* Config MAC Ctrl register */
> + mac_ctrl_data = MAC_CTRL_RX_EN;
> + /* set to 10/100M halt duplex */
> + mac_ctrl_data |= atl1c_mac_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",
> + atl1c_driver_name, mac_ctrl_data);
> + AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl_data);
> + AT_WRITE_REG(hw, REG_WOL_CTRL, wol_ctrl_data);
> + AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl_data);
> +
> + /* pcie patch */
> + AT_READ_REG(hw, REG_PCIE_PHYMISC, &ctrl);
> + ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
> + device_set_wakeup_enable(&pdev->dev, 1);
> + AT_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl);
> +
> + AT_READ_REG(hw, REG_PM_CTRLSTAT, &pm_data);
> + pm_data |= PM_CTRLSTAT_PME_EN;
> + AT_WRITE_REG(hw, REG_PM_CTRLSTAT, pm_data);
> +
> + 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 */
> + AT_READ_REG(hw, REG_PCIE_PHYMISC, &ctrl);
> + ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
> + AT_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl);
> +
> + atl1c_phy_disable(hw);
> + hw->phy_configured = false; /* re-init PHY when resume */
> +
> + pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
> +
> +suspend_exit:
> +
> + pci_disable_device(pdev);
> + pci_set_power_state(pdev, pci_choose_state(pdev, state));
> +
> + return 0;
> +}
> +
> +static int atl1c_resume(struct pci_dev *pdev)
> +{
> + struct net_device *netdev = pci_get_drvdata(pdev);
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> +
> + pci_set_power_state(pdev, PCI_D0);
> + pci_restore_state(pdev);
> + pci_enable_wake(pdev, PCI_D3hot, 0);
> + pci_enable_wake(pdev, PCI_D3cold, 0);
> +
> + AT_WRITE_REG(&adapter->hw, REG_WOL_CTRL, 0);
> +
> + atl1c_phy_reset(&adapter->hw);
> + atl1c_reset_mac(&adapter->hw);
> + netif_device_attach(netdev);
> + if (netif_running(netdev))
> + atl1c_up(adapter);
> +
> + return 0;
> +}
> +#endif
> +
> +static void atl1c_shutdown(struct pci_dev *pdev)
> +{
> + atl1c_suspend(pdev, PMSG_SUSPEND);

I didn't try, but I don't think this will compile without CONFIG_PM.

> +}
> +
> +static int atl1c_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 = &atl1c_open;
> + netdev->stop = &atl1c_close;
> + netdev->hard_start_xmit = &atl1c_xmit_frame;
> + netdev->get_stats = &atl1c_get_stats;
> + netdev->set_multicast_list = &atl1c_set_multi;
> + netdev->set_mac_address = &atl1c_set_mac_addr;
> + netdev->change_mtu = &atl1c_change_mtu;
> + netdev->do_ioctl = &atl1c_ioctl;
> + netdev->tx_timeout = &atl1c_tx_timeout;
> + netdev->watchdog_timeo = AT_TX_WATCHDOG;
> + netdev->vlan_rx_register = atl1c_vlan_rx_register;
> +#ifdef CONFIG_NET_POLL_CONTROLLER
> + netdev->poll_controller = atl1c_netpoll;
> +#endif
> + atl1c_set_ethtool_ops(netdev);
> +
> + /* TODO: add when ready */
> + netdev->features = NETIF_F_SG | NETIF_F_HW_CSUM |
> + NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
> + netdev->features |= NETIF_F_TSO;
> + netdev->features |= NETIF_F_TSO6;
> +
> + return 0;
> +}
> +
> +/*
> + * atl1c_probe - Device Initialization Routine
> + * @pdev: PCI device information struct
> + * @ent: entry in atl1c_pci_tbl
> + *
> + * Returns 0 on success, negative on failure
> + *
> + * atl1c_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 atl1c_probe(struct pci_dev *pdev,
> + const struct pci_device_id *ent)
> +{
> + struct net_device *netdev;
> + struct atl1c_adapter *adapter = NULL;
> + static int cards_found;
> +
> + int err = 0;
> +
> + /* enable device (incl. PCI PM wakeup and hotplug setup) */
> + err = pci_enable_device(pdev);
> + if (err) {
> + dev_err(&pdev->dev, "cannot enable PCI device\n");
> + return err;
> + }
> +
> + /*
> + * The atl1c 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, atl1c_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 atl1c_adapter));
> + if (netdev == NULL) {
> + err = -ENOMEM;
> + dev_err(&pdev->dev, "etherdev alloc failed\n");
> + goto err_alloc_etherdev;
> + }
> +
> + err = atl1c_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 = atl1c_mdio_read;
> + adapter->mii.mdio_write = atl1c_mdio_write;
> + adapter->mii.phy_id_mask = 0x1f;
> + adapter->mii.reg_num_mask = MDIO_REG_ADDR_MASK;
> + netif_napi_add(netdev, &adapter->napi, atl1c_clean, 64);
> + init_timer(&adapter->phy_config_timer);
> + adapter->phy_config_timer.function = &atl1c_phy_config;
> + adapter->phy_config_timer.data = (unsigned long) adapter;
> +
> + /* get user settings */
> + atl1c_check_options(adapter);
> +
> +
> + /* setup the private structure */
> + err = atl1c_sw_init(adapter);
> + if (err) {
> + dev_err(&pdev->dev, "net device private data init failed\n");
> + goto err_sw_init;
> + }
> + atl1c_reset_pcie(&adapter->hw, ATL1C_PCIE_L0S_L1_DISABLE |
> + ATL1C_PCIE_PHY_RESET);
> +
> + /* Init GPHY as early as possible due to power saving issue */
> + atl1c_phy_reset(&adapter->hw);
> +
> + err = atl1c_reset_mac(&adapter->hw);
> + if (err) {
> + err = -EIO;
> + goto err_reset;
> + }
> +
> +
> + /* reset the controller to
> + * put the device in a known good starting state */
> + err = atl1c_phy_init(&adapter->hw);
> + if (err) {
> + err = -EIO;
> + goto err_reset;
> + }
> + if (atl1c_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]);
> +
> + atl1c_hw_set_mac_addr(&adapter->hw);
> + INIT_WORK(&adapter->reset_task, atl1c_reset_task);
> + /* FIXME: should remove future ? */
> + INIT_WORK(&adapter->link_chg_task, atl1c_link_chg_task);
> + err = register_netdev(netdev);
> + if (err) {
> + dev_err(&pdev->dev, "register netdevice failed\n");
> + goto err_register;
> + }
> +
> + 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;
> +}
> +
> +/*
> + * atl1c_remove - Device Removal Routine
> + * @pdev: PCI device information struct
> + *
> + * atl1c_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 atl1c_remove(struct pci_dev *pdev)
> +{
> + struct net_device *netdev = pci_get_drvdata(pdev);
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> +
> + unregister_netdev(netdev);
> + atl1c_phy_disable(&adapter->hw);
> +
> + iounmap(adapter->hw.hw_addr);
> +
> + pci_release_regions(pdev);
> + pci_disable_device(pdev);
> + free_netdev(netdev);
> +}
> +
> +/*
> + * atl1c_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 atl1c_io_error_detected(struct pci_dev *pdev,
> + pci_channel_state_t state)
> +{
> + struct net_device *netdev = pci_get_drvdata(pdev);
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> +
> + netif_device_detach(netdev);
> +
> + if (netif_running(netdev))
> + atl1c_down(adapter);
> +
> + pci_disable_device(pdev);
> +
> + /* Request a slot slot reset. */
> + return PCI_ERS_RESULT_NEED_RESET;
> +}
> +
> +/*
> + * atl1c_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 atl1c_io_slot_reset(struct pci_dev *pdev)
> +{
> + struct net_device *netdev = pci_get_drvdata(pdev);
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> +
> + if (pci_enable_device(pdev)) {
> + dev_err(&pdev->dev,
> + "ATL1e: Cannot re-enable PCI device after reset.\n");

Remove ATL1e.

> + return PCI_ERS_RESULT_DISCONNECT;
> + }
> + pci_set_master(pdev);
> +
> + pci_enable_wake(pdev, PCI_D3hot, 0);
> + pci_enable_wake(pdev, PCI_D3cold, 0);
> +
> + atl1c_reset_mac(&adapter->hw);
> +
> + return PCI_ERS_RESULT_RECOVERED;
> +}
> +
> +/*
> + * atl1c_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 atl1c_resume routine.
> + */
> +static void atl1c_io_resume(struct pci_dev *pdev)
> +{
> + struct net_device *netdev = pci_get_drvdata(pdev);
> + struct atl1c_adapter *adapter = netdev_priv(netdev);
> +
> + if (netif_running(netdev)) {
> + if (atl1c_up(adapter)) {
> + dev_err(&pdev->dev,
> + "ATL1e: can't bring device back up after reset\n");

Remove ATL1e.

> + return;
> + }
> + }
> +
> + netif_device_attach(netdev);
> +}
> +
> +static struct pci_error_handlers atl1c_err_handler = {
> + .error_detected = atl1c_io_error_detected,
> + .slot_reset = atl1c_io_slot_reset,
> + .resume = atl1c_io_resume,
> +};
> +
> +static struct pci_driver atl1c_driver = {
> + .name = atl1c_driver_name,
> + .id_table = atl1c_pci_tbl,
> + .probe = atl1c_probe,
> + .remove = __devexit_p(atl1c_remove),
> + /* Power Managment Hooks */
> +#ifdef CONFIG_PM
> + .suspend = atl1c_suspend,
> + .resume = atl1c_resume,
> +#endif
> + .shutdown = atl1c_shutdown,

atl1c_shutdown() calls atl1c_suspend(), which won't be defined without CONFIG_PM.

> + .err_handler = &atl1c_err_handler
> +};
> +
> +/*
> + * atl1c_init_module - Driver Registration Routine
> + *
> + * atl1c_init_module is the first routine called when the driver is
> + * loaded. All it does is register with the PCI subsystem.
> + */
> +static int __init atl1c_init_module(void)
> +{
> + return pci_register_driver(&atl1c_driver);
> +}
> +
> +/*
> + * atl1c_exit_module - Driver Exit Cleanup Routine
> + *
> + * atl1c_exit_module is called just before the driver is removed
> + * from memory.
> + */
> +static void __exit atl1c_exit_module(void)
> +{
> + pci_unregister_driver(&atl1c_driver);
> +}
> +
> +module_init(atl1c_init_module);
> +module_exit(atl1c_exit_module);
> diff --git a/drivers/net/atl1c/atl1c_param.c b/drivers/net/atl1c/atl1c_param.c
> new file mode 100644
> index 0000000..722ce94
> --- /dev/null
> +++ b/drivers/net/atl1c/atl1c_param.c
> @@ -0,0 +1,283 @@
> +/*
> + * Copyright(c) 2008 - 2009 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 <linux/netdevice.h>
> +
> +#include "atl1c.h"
> +
> +/* This is the only thing that needs to be changed to adjust the
> + * maximum number of ports that the driver can manage.
> + */
> +
> +#define ATL1C_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 ATL1C_PARAM_INIT { [0 ... ATL1C_MAX_NIC] = OPTION_UNSET }
> +
> +#define ATL1C_PARAM(x, desc) \
> + static int __devinitdata x[ATL1C_MAX_NIC + 1] = ATL1C_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 ATL1C_MIN_TX_DESC_CNT 32
> +#define ATL1C_MAX_TX_DESC_CNT 1024
> +#define ATL1C_DEFAULT_TX_DESC_CNT 1024
> +ATL1C_PARAM(tx_desc_cnt, "Transmit description count");
> +
> +/* Receive Memory Block Count
> + *
> + * Valid Range: 16-512
> + *
> + * Default Value: 128
> + */
> +#define ATL1C_MIN_RX_MEM_SIZE 128
> +#define ATL1C_MAX_RX_MEM_SIZE 1024
> +#define ATL1C_DEFAULT_RX_MEM_SIZE 512
> +ATL1C_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
> + */
> +
> +ATL1C_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 200 /* 200us */
> +#define INT_MOD_MAX_CNT 65000
> +#define INT_MOD_MIN_CNT 50
> +ATL1C_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 atl1c_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 atl1c_opt_list { int i; char *str; } *p;
> + } l;
> + } arg;
> +};
> +
> +static int __devinit atl1c_validate_option(int *value, struct atl1c_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 atl1c_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;
> +}
> +
> +/*
> + * atl1c_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 atl1c_check_options(struct atl1c_adapter *adapter)
> +{
> + struct pci_dev *pdev = adapter->pdev;
> + int bd = adapter->bd_number;
> + if (bd >= ATL1C_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 atl1c_option opt = {
> + .type = range_option,
> + .name = "Transmit Ddescription Count",
> + .err = "using default of "
> + __MODULE_STRING(ATL1C_DEFAULT_TX_DESC_CNT),
> + .def = ATL1C_DEFAULT_TX_DESC_CNT,
> + .arg = { .r = { .min = ATL1C_MIN_TX_DESC_CNT,
> + .max = ATL1C_MAX_TX_DESC_CNT} }
> + };
> + int val;
> + if (num_tx_desc_cnt > bd) {
> + val = tx_desc_cnt[bd];
> + atl1c_validate_option(&val, &opt, pdev);
> + adapter->tpd_ring[0].count = (u16) val & 0xFFFC;
> + } else
> + adapter->tpd_ring[0].count = (u16)opt.def;
> + }
> +
> + { /* Receive Memory Block Count */
> + struct atl1c_option opt = {
> + .type = range_option,
> + .name = "Memory size of rx buffer(KB)",
> + .err = "using default of "
> + __MODULE_STRING(ATL1C_DEFAULT_RX_MEM_SIZE),
> + .def = ATL1C_DEFAULT_RX_MEM_SIZE,
> + .arg = { .r = { .min = ATL1C_MIN_RX_MEM_SIZE,
> + .max = ATL1C_MAX_RX_MEM_SIZE} }
> + };
> + int val;
> + if (num_rx_mem_size > bd) {
> + val = rx_mem_size[bd];
> + atl1c_validate_option(&val, &opt, pdev);
> + adapter->rfd_ring[0].count = (u32)val;
> + } else {
> + adapter->rfd_ring[0].count = (u32)opt.def;
> + }
> + }
> +
> + { /* Interrupt Moderate Timer */
> + struct atl1c_option opt = {
> + .type = range_option,
> + .name = "Interrupt Moderate TX Timer",
> + .err = "using default of "
> + __MODULE_STRING(INT_MOD_DEFAULT_CNT),
> + .def = INT_MOD_DEFAULT_CNT * 5,
> + .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];
> + atl1c_validate_option(&val, &opt, pdev);
> + adapter->hw.tx_imt = (u16) val;
> + } else
> + adapter->hw.tx_imt = (u16)(opt.def);
> + }
> + { /* Interrupt Moderate Timer */
> + struct atl1c_option opt = {
> + .type = range_option,
> + .name = "Interrupt Moderate RX 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];
> + atl1c_validate_option(&val, &opt, pdev);
> + adapter->hw.rx_imt = (u16) val;
> + } else
> + adapter->hw.rx_imt = (u16)(opt.def);
> + }
> +
> +
> +
> + { /* MediaType */
> + struct atl1c_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];
> + atl1c_validate_option(&val, &opt, pdev);
> + adapter->hw.media_type = (u16) val;
> + } else
> + adapter->hw.media_type = (u16)(opt.def);
> +
> + }
> +}
>
> --
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