atl1c: Atheros L1C Gigabit Ethernet driver

Supporting AR8131, and AR8132.

Signed-off-by: Jie Yang <jie.yang@atheros.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 5108 insertions, 0 deletions

diff --git a/drivers/net/atl1c/Makefile b/drivers/net/atl1c/Makefile
new file mode 100644
index 000000000000..c37d966952ee
--- /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
diff --git a/drivers/net/atl1c/atl1c.h b/drivers/net/atl1c/atl1c.h
new file mode 100644
index 000000000000..ac11b84b8377
--- /dev/null
+++ b/drivers/net/atl1c/atl1c.h
@@ -0,0 +1,606 @@
+/*
+ * 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"
+
+/* 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) & 0xFF)  |\
+		 (((_vlan) & 0xFF) << 8))
+
+#define AT_TAG_TO_VLAN(_tag, _vlan) 	 \
+	_vlan = ((((_tag) >> 8) & 0xFF) |\
+		(((_tag) & 0xFF) << 8))
+
+#define SPEED_0		   0xffff
+#define HALF_DUPLEX        1
+#define FULL_DUPLEX        2
+
+#define AT_RX_BUF_SIZE		(ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN)
+#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 * sizeof(u32))
+#define AT_EEPROM_LEN 	512
+
+#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 */
+	__le16	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;
+	__le32	rss_hash;
+	__le16	vlan_tag;
+	__le16	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;
+	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
+	u32 msg_enable;
+
+	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 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 000000000000..45c5b7332cd3
--- /dev/null
+++ b/drivers/net/atl1c/atl1c_ethtool.c
@@ -0,0 +1,317 @@
+/*
+ * 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 |= 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 = ADVERTISED_Autoneg;
+	} else {
+		if (ecmd->speed == SPEED_1000) {
+			if (ecmd->duplex != DUPLEX_FULL) {
+				if (netif_msg_link(adapter))
+					dev_warn(&adapter->pdev->dev,
+						"1000M half is invalid\n");
+				clear_bit(__AT_RESETTING, &adapter->flags);
+				return -EINVAL;
+			}
+			autoneg_advertised = ADVERTISED_1000baseT_Full;
+		} else if (ecmd->speed == SPEED_100) {
+			if (ecmd->duplex == DUPLEX_FULL)
+				autoneg_advertised = ADVERTISED_100baseT_Full;
+			else
+				autoneg_advertised = ADVERTISED_100baseT_Half;
+		} else {
+			if (ecmd->duplex == DUPLEX_FULL)
+				autoneg_advertised = ADVERTISED_10baseT_Full;
+			else
+				autoneg_advertised = ADVERTISED_10baseT_Half;
+		}
+	}
+
+	if (hw->autoneg_advertised != autoneg_advertised) {
+		hw->autoneg_advertised = autoneg_advertised;
+		if (atl1c_restart_autoneg(hw) != 0) {
+			if (netif_msg_link(adapter))
+				dev_warn(&adapter->pdev->dev,
+					"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)
+{
+	struct atl1c_adapter *adapter = netdev_priv(netdev);
+	return adapter->msg_enable;
+}
+
+static void atl1c_set_msglevel(struct net_device *netdev, u32 data)
+{
+	struct atl1c_adapter *adapter = netdev_priv(netdev);
+	adapter->msg_enable = data;
+}
+
+static int atl1c_get_regs_len(struct net_device *netdev)
+{
+	return AT_REGS_LEN;
+}
+
+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);
+
+	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 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, sizeof(drvinfo->driver));
+	strncpy(drvinfo->version, atl1c_driver_version,
+		sizeof(drvinfo->version));
+	strncpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
+	strncpy(drvinfo->bus_info, pci_name(adapter->pdev),
+		sizeof(drvinfo->bus_info));
+	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,
+	.get_tx_csum            = atl1c_get_tx_csum,
+	.get_sg                 = ethtool_op_get_sg,
+	.set_sg                 = ethtool_op_set_sg,
+};
+
+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 000000000000..3e69b940b8f7
--- /dev/null
+++ b/drivers/net/atl1c/atl1c_hw.c
@@ -0,0 +1,527 @@
+/*
+ * 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;
+