Add Attansic L1 ethernet driver.

This driver is a modified version of the Attansic reference driver
for the L1 ethernet adapter.  Attansic has granted permission for
its inclusion in the mainline kernel.
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/net/Kconfig

@@ -2335,6 +2335,17 @@ config QLA3XXX
 	  To compile this driver as a module, choose M here: the module
 	  will be called qla3xxx.
 
+config ATL1
+	tristate "Attansic L1 Gigabit Ethernet support (EXPERIMENTAL)"
+	depends on NET_PCI && PCI && EXPERIMENTAL
+	select CRC32
+	select MII
+	help
+	  This driver supports the Attansic L1 gigabit ethernet adapter.
+
+	  To compile this driver as a module, choose M here.  The module
+	  will be called atl1.
+
 endmenu
 
 #

drivers/net/Makefile

@@ -9,6 +9,7 @@ obj-$(CONFIG_CHELSIO_T1) += chelsio/
 obj-$(CONFIG_CHELSIO_T3) += cxgb3/
 obj-$(CONFIG_EHEA) += ehea/
 obj-$(CONFIG_BONDING) += bonding/
+obj-$(CONFIG_ATL1) += atl1/
 obj-$(CONFIG_GIANFAR) += gianfar_driver.o
 
 gianfar_driver-objs := gianfar.o \

drivers/net/atl1/Makefile

+obj-$(CONFIG_ATL1)	+= atl1.o
+atl1-y			+= atl1_main.o atl1_hw.o atl1_ethtool.o atl1_param.o

drivers/net/atl1/atl1.h

+/*
+ * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
+ * Copyright(c) 2006 Chris Snook <csnook@redhat.com>
+ * Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.com>
+ *
+ * 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 _ATL1_H_
+#define _ATL1_H_
+
+#include <linux/types.h>
+#include <linux/if_vlan.h>
+
+#include "atl1_hw.h"
+
+/* function prototypes needed by multiple files */
+s32 atl1_up(struct atl1_adapter *adapter);
+void atl1_down(struct atl1_adapter *adapter);
+int atl1_reset(struct atl1_adapter *adapter);
+s32 atl1_setup_ring_resources(struct atl1_adapter *adapter);
+void atl1_free_ring_resources(struct atl1_adapter *adapter);
+
+extern char atl1_driver_name[];
+extern char atl1_driver_version[];
+extern const struct ethtool_ops atl1_ethtool_ops;
+
+struct atl1_adapter;
+
+#define ATL1_MAX_INTR		3
+
+#define ATL1_DEFAULT_TPD	256
+#define ATL1_MAX_TPD		1024
+#define ATL1_MIN_TPD		64
+#define ATL1_DEFAULT_RFD	512
+#define ATL1_MIN_RFD		128
+#define ATL1_MAX_RFD		2048
+
+#define ATL1_GET_DESC(R, i, type)	(&(((type *)((R)->desc))[i]))
+#define ATL1_RFD_DESC(R, i)	ATL1_GET_DESC(R, i, struct rx_free_desc)
+#define ATL1_TPD_DESC(R, i)	ATL1_GET_DESC(R, i, struct tx_packet_desc)
+#define ATL1_RRD_DESC(R, i)	ATL1_GET_DESC(R, i, struct rx_return_desc)
+
+/*
+ * Some workarounds require millisecond delays and are run during interrupt
+ * context.  Most notably, when establishing link, the phy may need tweaking
+ * but cannot process phy register reads/writes faster than millisecond
+ * intervals...and we establish link due to a "link status change" interrupt.
+ */
+
+/*
+ * wrapper around a pointer to a socket buffer,
+ * so a DMA handle can be stored along with the buffer
+ */
+struct atl1_buffer {
+	struct sk_buff *skb;
+	u16 length;
+	u16 alloced;
+	dma_addr_t dma;
+};
+
+#define MAX_TX_BUF_LEN		0x3000	/* 12KB */
+
+struct atl1_tpd_ring {
+	void *desc;		/* pointer to the descriptor ring memory */
+	dma_addr_t dma;		/* physical adress of the descriptor ring */
+	u16 size;		/* length of descriptor ring in bytes */
+	u16 count;		/* number of descriptors in the ring */
+	u16 hw_idx;		/* hardware index */
+	atomic_t next_to_clean;
+	atomic_t next_to_use;
+	struct atl1_buffer *buffer_info;
+};
+
+struct atl1_rfd_ring {
+	void *desc;
+	dma_addr_t dma;
+	u16 size;
+	u16 count;
+	atomic_t next_to_use;
+	u16 next_to_clean;
+	struct atl1_buffer *buffer_info;
+};
+
+struct atl1_rrd_ring {
+	void *desc;
+	dma_addr_t dma;
+	unsigned int size;
+	u16 count;
+	u16 next_to_use;
+	atomic_t next_to_clean;
+};
+
+struct atl1_ring_header {
+	void *desc;		/* pointer to the descriptor ring memory */
+	dma_addr_t dma;		/* physical adress of the descriptor ring */
+	unsigned int size;	/* length of descriptor ring in bytes */
+};
+
+struct atl1_cmb {
+	struct coals_msg_block *cmb;
+	dma_addr_t dma;
+};
+
+struct atl1_smb {
+	struct stats_msg_block *smb;
+	dma_addr_t dma;
+};
+
+/* Statistics counters */
+struct atl1_sft_stats {
+	u64 rx_packets;
+	u64 tx_packets;
+	u64 rx_bytes;
+	u64 tx_bytes;
+	u64 multicast;
+	u64 collisions;
+	u64 rx_errors;
+	u64 rx_length_errors;
+	u64 rx_crc_errors;
+	u64 rx_frame_errors;
+	u64 rx_fifo_errors;
+	u64 rx_missed_errors;
+	u64 tx_errors;
+	u64 tx_fifo_errors;
+	u64 tx_aborted_errors;
+	u64 tx_window_errors;
+	u64 tx_carrier_errors;
+
+	u64 tx_pause;		/* num Pause packet transmitted. */
+	u64 excecol;		/* num tx packets aborted due to excessive collisions. */
+	u64 deffer;		/* num deferred tx packets */
+	u64 scc;		/* num packets subsequently transmitted successfully w/ single prior collision. */
+	u64 mcc;		/* num packets subsequently transmitted successfully w/ multiple prior collisions. */
+	u64 latecol;		/* num tx packets  w/ late collisions. */
+	u64 tx_underun;		/* num tx packets aborted due to transmit FIFO underrun, or TRD FIFO underrun */
+	u64 tx_trunc;		/* num tx packets truncated due to size exceeding MTU, regardless whether truncated by Selene or not. (The name doesn't really reflect the meaning in this case.) */
+	u64 rx_pause;		/* num Pause packets received. */
+	u64 rx_rrd_ov;
+	u64 rx_trunc;
+};
+
+/* board specific private data structure */
+#define ATL1_REGS_LEN	8
+
+/* Structure containing variables used by the shared code */
+struct atl1_hw {
+	u8 __iomem *hw_addr;
+	struct atl1_adapter *back;
+	enum atl1_dma_order dma_ord;
+	enum atl1_dma_rcb rcb_value;
+	enum atl1_dma_req_block dmar_block;
+	enum atl1_dma_req_block dmaw_block;
+	u8 preamble_len;
+	u8 max_retry;		/* Retransmission maximum, after which the packet will be discarded */
+	u8 jam_ipg;		/* IPG to start JAM for collision based flow control in half-duplex mode. In units of 8-bit time */
+	u8 ipgt;		/* Desired back to back inter-packet gap. The default is 96-bit time */
+	u8 min_ifg;		/* Minimum number of IFG to enforce in between RX frames. Frame gap below such IFP is dropped */
+	u8 ipgr1;		/* 64bit Carrier-Sense window */
+	u8 ipgr2;		/* 96-bit IPG window */
+	u8 tpd_burst;		/* Number of TPD to prefetch in cache-aligned burst. Each TPD is 16 bytes long */
+	u8 rfd_burst;		/* Number of RFD to prefetch in cache-aligned burst. Each RFD is 12 bytes long */
+	u8 rfd_fetch_gap;
+	u8 rrd_burst;		/* Threshold number of RRDs that can be retired in a burst. Each RRD is 16 bytes long */
+	u8 tpd_fetch_th;
+	u8 tpd_fetch_gap;
+	u16 tx_jumbo_task_th;
+	u16 txf_burst;		/* Number of data bytes to read in a cache-aligned burst. Each SRAM entry is
+				   8 bytes long */
+	u16 rx_jumbo_th;	/* Jumbo packet size for non-VLAN packet. VLAN packets should add 4 bytes */
+	u16 rx_jumbo_lkah;
+	u16 rrd_ret_timer;	/* RRD retirement timer. Decrement by 1 after every 512ns passes. */
+	u16 lcol;		/* Collision Window */
+
+	u16 cmb_tpd;
+	u16 cmb_rrd;
+	u16 cmb_rx_timer;
+	u16 cmb_tx_timer;
+	u32 smb_timer;
+	u16 media_type;
+	u16 autoneg_advertised;
+	u16 pci_cmd_word;
+
+	u16 mii_autoneg_adv_reg;
+	u16 mii_1000t_ctrl_reg;
+
+	u32 mem_rang;
+	u32 txcw;
+	u32 max_frame_size;
+	u32 min_frame_size;
+	u32 mc_filter_type;
+	u32 num_mc_addrs;
+	u32 collision_delta;
+	u32 tx_packet_delta;
+	u16 phy_spd_default;
+
+	u16 dev_rev;
+	u8 revision_id;
+
+	/* spi flash */
+	u8 flash_vendor;
+
+	u8 dma_fairness;
+	u8 mac_addr[ETH_ALEN];
+	u8 perm_mac_addr[ETH_ALEN];
+
+	/* bool phy_preamble_sup; */
+	bool phy_configured;
+};
+
+struct atl1_adapter {
+	/* OS defined structs */
+	struct net_device *netdev;
+	struct pci_dev *pdev;
+	struct net_device_stats net_stats;
+	struct atl1_sft_stats soft_stats;
+
+	struct vlan_group *vlgrp;
+	u32 rx_buffer_len;
+	u32 wol;
+	u16 link_speed;
+	u16 link_duplex;
+	spinlock_t lock;
+	atomic_t irq_sem;
+	struct work_struct tx_timeout_task;
+	struct work_struct link_chg_task;
+	struct work_struct pcie_dma_to_rst_task;
+	struct timer_list watchdog_timer;
+	struct timer_list phy_config_timer;
+	bool phy_timer_pending;
+
+	bool mac_disabled;
+
+	/* All descriptor rings' memory */
+	struct atl1_ring_header ring_header;
+
+	/* TX */
+	struct atl1_tpd_ring tpd_ring;
+	spinlock_t mb_lock;
+
+	/* RX */
+	struct atl1_rfd_ring rfd_ring;
+	struct atl1_rrd_ring rrd_ring;
+	u64 hw_csum_err;
+	u64 hw_csum_good;
+
+	u32 gorcl;
+	u64 gorcl_old;
+
+	/* Interrupt Moderator timer ( 2us resolution) */
+	u16 imt;
+	/* Interrupt Clear timer (2us resolution) */
+	u16 ict;
+
+	/* MII interface info */
+	struct mii_if_info mii;
+
+	/* structs defined in atl1_hw.h */
+	u32 bd_number;		/* board number */
+	bool pci_using_64;
+	struct atl1_hw hw;
+	struct atl1_smb smb;
+	struct atl1_cmb cmb;
+
+	u32 pci_state[16];
+};
+
+#endif	/* _ATL1_H_ */

drivers/net/atl1/atl1_ethtool.c

+/*
+ * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
+ * Copyright(c) 2006 Chris Snook <csnook@redhat.com>
+ * Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.com>
+ *
+ * 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/types.h>
+#include <linux/pci.h>
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+#include <linux/mii.h>
+#include <asm/uaccess.h>
+
+#include "atl1.h"
+
+struct atl1_stats {
+	char stat_string[ETH_GSTRING_LEN];
+	int sizeof_stat;
+	int stat_offset;
+};
+
+#define ATL1_STAT(m) sizeof(((struct atl1_adapter *)0)->m), \
+	offsetof(struct atl1_adapter, m)
+
+static struct atl1_stats atl1_gstrings_stats[] = {
+	{"rx_packets", ATL1_STAT(soft_stats.rx_packets)},
+	{"tx_packets", ATL1_STAT(soft_stats.tx_packets)},
+	{"rx_bytes", ATL1_STAT(soft_stats.rx_bytes)},
+	{"tx_bytes", ATL1_STAT(soft_stats.tx_bytes)},
+	{"rx_errors", ATL1_STAT(soft_stats.rx_errors)},
+	{"tx_errors", ATL1_STAT(soft_stats.tx_errors)},
+	{"rx_dropped", ATL1_STAT(net_stats.rx_dropped)},
+	{"tx_dropped", ATL1_STAT(net_stats.tx_dropped)},
+	{"multicast", ATL1_STAT(soft_stats.multicast)},
+	{"collisions", ATL1_STAT(soft_stats.collisions)},
+	{"rx_length_errors", ATL1_STAT(soft_stats.rx_length_errors)},
+	{"rx_over_errors", ATL1_STAT(soft_stats.rx_missed_errors)},
+	{"rx_crc_errors", ATL1_STAT(soft_stats.rx_crc_errors)},
+	{"rx_frame_errors", ATL1_STAT(soft_stats.rx_frame_errors)},
+	{"rx_fifo_errors", ATL1_STAT(soft_stats.rx_fifo_errors)},
+	{"rx_missed_errors", ATL1_STAT(soft_stats.rx_missed_errors)},
+	{"tx_aborted_errors", ATL1_STAT(soft_stats.tx_aborted_errors)},
+	{"tx_carrier_errors", ATL1_STAT(soft_stats.tx_carrier_errors)},
+	{"tx_fifo_errors", ATL1_STAT(soft_stats.tx_fifo_errors)},
+	{"tx_window_errors", ATL1_STAT(soft_stats.tx_window_errors)},
+	{"tx_abort_exce_coll", ATL1_STAT(soft_stats.excecol)},
+	{"tx_abort_late_coll", ATL1_STAT(soft_stats.latecol)},
+	{"tx_deferred_ok", ATL1_STAT(soft_stats.deffer)},
+	{"tx_single_coll_ok", ATL1_STAT(soft_stats.scc)},
+	{"tx_multi_coll_ok", ATL1_STAT(soft_stats.mcc)},
+	{"tx_underun", ATL1_STAT(soft_stats.tx_underun)},
+	{"tx_trunc", ATL1_STAT(soft_stats.tx_trunc)},
+	{"tx_pause", ATL1_STAT(soft_stats.tx_pause)},
+	{"rx_pause", ATL1_STAT(soft_stats.rx_pause)},
+	{"rx_rrd_ov", ATL1_STAT(soft_stats.rx_rrd_ov)},
+	{"rx_trunc", ATL1_STAT(soft_stats.rx_trunc)}
+};
+
+static void atl1_get_ethtool_stats(struct net_device *netdev,
+				struct ethtool_stats *stats, u64 *data)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	int i;
+	char *p;
+
+	for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) {
+		p = (char *)adapter+atl1_gstrings_stats[i].stat_offset;
+		data[i] = (atl1_gstrings_stats[i].sizeof_stat ==
+			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+	}
+
+}
+
+static int atl1_get_stats_count(struct net_device *netdev)
+{
+	return ARRAY_SIZE(atl1_gstrings_stats);
+}
+
+static int atl1_get_settings(struct net_device *netdev,
+				struct ethtool_cmd *ecmd)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+
+	ecmd->supported = (SUPPORTED_10baseT_Half |
+			   SUPPORTED_10baseT_Full |
+			   SUPPORTED_100baseT_Half |
+			   SUPPORTED_100baseT_Full |
+			   SUPPORTED_1000baseT_Full |
+			   SUPPORTED_Autoneg | SUPPORTED_TP);
+	ecmd->advertising = ADVERTISED_TP;
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL) {
+		ecmd->advertising |= ADVERTISED_Autoneg;
+		if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR) {
+			ecmd->advertising |= ADVERTISED_Autoneg;
+			ecmd->advertising |=
+			    (ADVERTISED_10baseT_Half |
+			     ADVERTISED_10baseT_Full |
+			     ADVERTISED_100baseT_Half |
+			     ADVERTISED_100baseT_Full |
+			     ADVERTISED_1000baseT_Full);
+		}
+		else
+			ecmd->advertising |= (ADVERTISED_1000baseT_Full);
+	}
+	ecmd->port = PORT_TP;
+	ecmd->phy_address = 0;
+	ecmd->transceiver = XCVR_INTERNAL;
+
+	if (netif_carrier_ok(adapter->netdev)) {
+		u16 link_speed, link_duplex;
+		atl1_get_speed_and_duplex(hw, &link_speed, &link_duplex);
+		ecmd->speed = link_speed;
+		if (link_duplex == FULL_DUPLEX)
+			ecmd->duplex = DUPLEX_FULL;
+		else
+			ecmd->duplex = DUPLEX_HALF;
+	} else {
+		ecmd->speed = -1;
+		ecmd->duplex = -1;
+	}
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL)
+		ecmd->autoneg = AUTONEG_ENABLE;
+	else
+		ecmd->autoneg = AUTONEG_DISABLE;
+
+	return 0;
+}
+
+static int atl1_set_settings(struct net_device *netdev,
+				struct ethtool_cmd *ecmd)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+	u16 phy_data;
+	int ret_val = 0;
+	u16 old_media_type = hw->media_type;
+
+	if (netif_running(adapter->netdev)) {
+		printk(KERN_DEBUG "%s: ethtool shutting down adapter\n",
+			atl1_driver_name);
+		atl1_down(adapter);
+	}
+
+	if (ecmd->autoneg == AUTONEG_ENABLE)
+		hw->media_type = MEDIA_TYPE_AUTO_SENSOR;
+	else {
+		if (ecmd->speed == SPEED_1000) {
+			if (ecmd->duplex != DUPLEX_FULL) {
+				printk(KERN_WARNING
+				       "%s: can't force to 1000M half duplex\n",
+					atl1_driver_name);
+				ret_val = -EINVAL;
+				goto exit_sset;
+			}
+			hw->media_type = MEDIA_TYPE_1000M_FULL;
+		} else if (ecmd->speed == SPEED_100) {
+			if (ecmd->duplex == DUPLEX_FULL) {
+				hw->media_type = MEDIA_TYPE_100M_FULL;
+			} else
+				hw->media_type = MEDIA_TYPE_100M_HALF;
+		} else {
+			if (ecmd->duplex == DUPLEX_FULL)
+				hw->media_type = MEDIA_TYPE_10M_FULL;
+			else
+				hw->media_type = MEDIA_TYPE_10M_HALF;
+		}
+	}
+	switch (hw->media_type) {
+	case MEDIA_TYPE_AUTO_SENSOR:
+		ecmd->advertising =
+		    ADVERTISED_10baseT_Half |
+		    ADVERTISED_10baseT_Full |
+		    ADVERTISED_100baseT_Half |
+		    ADVERTISED_100baseT_Full |
+		    ADVERTISED_1000baseT_Full |
+		    ADVERTISED_Autoneg | ADVERTISED_TP;
+		break;
+	case MEDIA_TYPE_1000M_FULL:
+		ecmd->advertising =
+		    ADVERTISED_1000baseT_Full |
+		    ADVERTISED_Autoneg | ADVERTISED_TP;
+		break;
+	default:
+		ecmd->advertising = 0;
+		break;
+	}
+	if (atl1_phy_setup_autoneg_adv(hw)) {
+		ret_val = -EINVAL;
+		printk(KERN_WARNING
+			"%s: invalid ethtool speed/duplex setting\n",
+			atl1_driver_name);
+		goto exit_sset;
+	}
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL)
+		phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
+	else {
+		switch (hw->media_type) {
+		case MEDIA_TYPE_100M_FULL:
+			phy_data =
+			    MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
+			    MII_CR_RESET;
+			break;
+		case MEDIA_TYPE_100M_HALF:
+			phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
+			break;
+		case MEDIA_TYPE_10M_FULL:
+			phy_data =
+			    MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
+			break;
+		default:	/* MEDIA_TYPE_10M_HALF: */
+			phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
+			break;
+		}
+	}
+	atl1_write_phy_reg(hw, MII_BMCR, phy_data);
+exit_sset:
+	if (ret_val)
+		hw->media_type = old_media_type;
+
+	if (netif_running(adapter->netdev)) {
+		printk(KERN_DEBUG "%s: ethtool starting adapter\n",
+			atl1_driver_name);
+		atl1_up(adapter);
+	} else if (!ret_val) {
+		printk(KERN_DEBUG "%s: ethtool resetting adapter\n",
+			atl1_driver_name);
+		atl1_reset(adapter);
+	}
+	return ret_val;
+}
+
+static void atl1_get_drvinfo(struct net_device *netdev,
+				struct ethtool_drvinfo *drvinfo)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+
+	strncpy(drvinfo->driver, atl1_driver_name, sizeof(drvinfo->driver));
+	strncpy(drvinfo->version, atl1_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->eedump_len = ATL1_EEDUMP_LEN;
+}
+
+static void atl1_get_wol(struct net_device *netdev,
+			    struct ethtool_wolinfo *wol)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+
+	wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
+	wol->wolopts = 0;
+	if (adapter->wol & ATL1_WUFC_EX)
+		wol->wolopts |= WAKE_UCAST;
+	if (adapter->wol & ATL1_WUFC_MC)
+		wol->wolopts |= WAKE_MCAST;
+	if (adapter->wol & ATL1_WUFC_BC)
+		wol->wolopts |= WAKE_BCAST;
+	if (adapter->wol & ATL1_WUFC_MAG)
+		wol->wolopts |= WAKE_MAGIC;
+	return;
+}
+
+static int atl1_set_wol(struct net_device *netdev,
+			struct ethtool_wolinfo *wol)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+
+	if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
+		return -EOPNOTSUPP;
+	adapter->wol = 0;
+	if (wol->wolopts & WAKE_UCAST)
+		adapter->wol |= ATL1_WUFC_EX;
+	if (wol->wolopts & WAKE_MCAST)
+		adapter->wol |= ATL1_WUFC_MC;
+	if (wol->wolopts & WAKE_BCAST)
+		adapter->wol |= ATL1_WUFC_BC;
+	if (wol->wolopts & WAKE_MAGIC)
+		adapter->wol |= ATL1_WUFC_MAG;
+	return 0;
+}
+
+static void atl1_get_ringparam(struct net_device *netdev,
+			    struct ethtool_ringparam *ring)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_tpd_ring *txdr = &adapter->tpd_ring;
+	struct atl1_rfd_ring *rxdr = &adapter->rfd_ring;
+
+	ring->rx_max_pending = ATL1_MAX_RFD;
+	ring->tx_max_pending = ATL1_MAX_TPD;
+	ring->rx_mini_max_pending = 0;
+	ring->rx_jumbo_max_pending = 0;
+	ring->rx_pending = rxdr->count;
+	ring->tx_pending = txdr->count;
+	ring->rx_mini_pending = 0;
+	ring->rx_jumbo_pending = 0;
+}
+
+static int atl1_set_ringparam(struct net_device *netdev,
+				struct ethtool_ringparam *ring)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_tpd_ring *tpdr = &adapter->tpd_ring;
+	struct atl1_rrd_ring *rrdr = &adapter->rrd_ring;
+	struct atl1_rfd_ring *rfdr = &adapter->rfd_ring;
+
+	struct atl1_tpd_ring tpd_old, tpd_new;
+	struct atl1_rfd_ring rfd_old, rfd_new;
+	struct atl1_rrd_ring rrd_old, rrd_new;
+	struct atl1_ring_header rhdr_old, rhdr_new;
+	int err;
+
+	tpd_old = adapter->tpd_ring;
+	rfd_old = adapter->rfd_ring;
+	rrd_old = adapter->rrd_ring;
+	rhdr_old = adapter->ring_header;
+
+	if (netif_running(adapter->netdev))
+		atl1_down(adapter);
+
+	rfdr->count = (u16) max(ring->rx_pending, (u32) ATL1_MIN_RFD);
+	rfdr->count = rfdr->count > ATL1_MAX_RFD ? ATL1_MAX_RFD :
+			rfdr->count;
+	rfdr->count = (rfdr->count + 3) & ~3;
+	rrdr->count = rfdr->count;
+
+	tpdr->count = (u16) max(ring->tx_pending, (u32) ATL1_MIN_TPD);
+	tpdr->count = tpdr->count > ATL1_MAX_TPD ? ATL1_MAX_TPD :
+			tpdr->count;
+	tpdr->count = (tpdr->count + 3) & ~3;
+
+	if (netif_running(adapter->netdev)) {
+		/* try to get new resources before deleting old */
+		err = atl1_setup_ring_resources(adapter);
+		if (err)
+			goto err_setup_ring;
+
+		/*
+		 * save the new, restore the old in order to free it,
+		 * then restore the new back again
+		 */
+
+		rfd_new = adapter->rfd_ring;
+		rrd_new = adapter->rrd_ring;
+		tpd_new = adapter->tpd_ring;
+		rhdr_new = adapter->ring_header;
+		adapter->rfd_ring = rfd_old;
+		adapter->rrd_ring = rrd_old;
+		adapter->tpd_ring = tpd_old;
+		adapter->ring_header = rhdr_old;
+		atl1_free_ring_resources(adapter);
+		adapter->rfd_ring = rfd_new;
+		adapter->rrd_ring = rrd_new;
+		adapter->tpd_ring = tpd_new;
+		adapter->ring_header = rhdr_new;
+
+		err = atl1_up(adapter);
+		if (err)
+			return err;
+	}
+	return 0;
+
+err_setup_ring:
+	adapter->rfd_ring = rfd_old;
+	adapter->rrd_ring = rrd_old;
+	adapter->tpd_ring = tpd_old;
+	adapter->ring_header = rhdr_old;
+	atl1_up(adapter);
+	return err;
+}
+
+static void atl1_get_pauseparam(struct net_device *netdev,
+			     struct ethtool_pauseparam *epause)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL) {
+		epause->autoneg = AUTONEG_ENABLE;
+	} else {
+		epause->autoneg = AUTONEG_DISABLE;
+	}
+	epause->rx_pause = 1;
+	epause->tx_pause = 1;
+}
+
+static int atl1_set_pauseparam(struct net_device *netdev,
+			     struct ethtool_pauseparam *epause)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL) {
+		epause->autoneg = AUTONEG_ENABLE;
+	} else {
+		epause->autoneg = AUTONEG_DISABLE;
+	}
+
+	epause->rx_pause = 1;
+	epause->tx_pause = 1;
+
+	return 0;
+}
+
+static u32 atl1_get_rx_csum(struct net_device *netdev)
+{
+	return 1;
+}
+
+static void atl1_get_strings(struct net_device *netdev, u32 stringset,
+				u8 *data)
+{
+	u8 *p = data;
+	int i;
+
+	switch (stringset) {
+	case ETH_SS_STATS:
+		for (i = 0; i < ARRAY_SIZE(atl1_gstrings_stats); i++) {
+			memcpy(p, atl1_gstrings_stats[i].stat_string,
+				ETH_GSTRING_LEN);
+			p += ETH_GSTRING_LEN;
+		}
+		break;
+	}
+}
+
+static int atl1_nway_reset(struct net_device *netdev)
+{
+	struct atl1_adapter *adapter = netdev_priv(netdev);
+	struct atl1_hw *hw = &adapter->hw;
+
+	if (netif_running(netdev)) {
+		u16 phy_data;
+		atl1_down(adapter);
+
+		if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+			hw->media_type == MEDIA_TYPE_1000M_FULL) {
+			phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
+		} else {
+			switch (hw->media_type) {
+			case MEDIA_TYPE_100M_FULL:
+				phy_data = MII_CR_FULL_DUPLEX |
+					MII_CR_SPEED_100 | MII_CR_RESET;
+				break;
+			case MEDIA_TYPE_100M_HALF:
+				phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
+				break;
+			case MEDIA_TYPE_10M_FULL:
+				phy_data = MII_CR_FULL_DUPLEX |
+					MII_CR_SPEED_10 | MII_CR_RESET;
+				break;
+			default:  /* MEDIA_TYPE_10M_HALF */
+				phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
+			}
+		}
+		atl1_write_phy_reg(hw, MII_BMCR, phy_data);
+		atl1_up(adapter);
+	}
+	return 0;
+}
+
+const struct ethtool_ops atl1_ethtool_ops = {
+	.get_settings		= atl1_get_settings,
+	.set_settings		= atl1_set_settings,
+	.get_drvinfo		= atl1_get_drvinfo,
+	.get_wol		= atl1_get_wol,
+	.set_wol		= atl1_set_wol,
+	.get_ringparam		= atl1_get_ringparam,
+	.set_ringparam		= atl1_set_ringparam,
+	.get_pauseparam		= atl1_get_pauseparam,
+	.set_pauseparam 	= atl1_set_pauseparam,
+	.get_rx_csum		= atl1_get_rx_csum,
+	.get_tx_csum		= ethtool_op_get_tx_csum,
+	.set_tx_csum		= ethtool_op_set_tx_hw_csum,
+	.get_link		= ethtool_op_get_link,
+	.get_sg			= ethtool_op_get_sg,
+	.set_sg			= ethtool_op_set_sg,
+	.get_strings		= atl1_get_strings,
+	.nway_reset		= atl1_nway_reset,
+	.get_ethtool_stats	= atl1_get_ethtool_stats,
+	.get_stats_count	= atl1_get_stats_count,
+	.get_tso		= ethtool_op_get_tso,
+	.set_tso		= ethtool_op_set_tso,
+};

drivers/net/atl1/atl1_hw.c

+/*
+ * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved.
+ * Copyright(c) 2006 Chris Snook <csnook@redhat.com>
+ * Copyright(c) 2006 Jay Cliburn <jcliburn@gmail.com>
+ * 
+ * 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/types.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/if_vlan.h>
+#include <linux/etherdevice.h>
+#include <linux/crc32.h>
+#include <asm/byteorder.h>
+
+#include "atl1.h"
+
+/*
+ * Reset the transmit and receive units; mask and clear all interrupts.
+ * hw - Struct containing variables accessed by shared code
+ * return : ATL1_SUCCESS  or  idle status (if error)
+ */
+s32 atl1_reset_hw(struct atl1_hw *hw)
+{
+	u32 icr;
+	int i;
+
+	/* 
+	 * Clear Interrupt mask to stop board from generating
+	 * interrupts & Clear any pending interrupt events 
+	 */
+	/*
+	 * iowrite32(0, hw->hw_addr + REG_IMR);
+	 * iowrite32(0xffffffff, hw->hw_addr + REG_ISR);
+	 */
+
+	/*
+	 * 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.
+	 */
+	iowrite32(MASTER_CTRL_SOFT_RST, hw->hw_addr + REG_MASTER_CTRL);
+	ioread32(hw->hw_addr + REG_MASTER_CTRL);
+
+	iowrite16(1, hw->hw_addr + REG_GPHY_ENABLE);
+	ioread16(hw->hw_addr + REG_GPHY_ENABLE);
+
+	msleep(1);		/* delay about 1ms */
+
+	/* Wait at least 10ms for All module to be Idle */
+	for (i = 0; i < 10; i++) {
+		icr = ioread32(hw->hw_addr + REG_IDLE_STATUS);
+		if (!icr)
+			break;
+		msleep(1);	/* delay 1 ms */
+		cpu_relax();	/* FIXME: is this still the right way to do this? */
+	}
+
+	if (icr) {
+		printk (KERN_DEBUG "icr = %x\n", icr); 
+		return icr;
+	}
+
+	return ATL1_SUCCESS;
+}
+
+/* function about EEPROM
+ *
+ * check_eeprom_exist
+ * return 0 if eeprom exist
+ */
+static int atl1_check_eeprom_exist(struct atl1_hw *hw)
+{
+	u32 value;
+	value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
+	if (value & SPI_FLASH_CTRL_EN_VPD) {
+		value &= ~SPI_FLASH_CTRL_EN_VPD;
+		iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
+	}
+
+	value = ioread16(hw->hw_addr + REG_PCIE_CAP_LIST);
+	return ((value & 0xFF00) == 0x6C00) ? 0 : 1;
+}
+
+static bool atl1_read_eeprom(struct atl1_hw *hw, u32 offset, u32 *p_value)
+{
+	int i;
+	u32 control;
+
+	if (offset & 3)
+		return false;	/* address do not align */
+
+	iowrite32(0, hw->hw_addr + REG_VPD_DATA);
+	control = (offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT;
+	iowrite32(control, hw->hw_addr + REG_VPD_CAP);
+	ioread32(hw->hw_addr + REG_VPD_CAP);
+
+	for (i = 0; i < 10; i++) {
+		msleep(2);
+		control = ioread32(hw->hw_addr + REG_VPD_CAP);
+		if (control & VPD_CAP_VPD_FLAG)
+			break;
+	}
+	if (control & VPD_CAP_VPD_FLAG) {
+		*p_value = ioread32(hw->hw_addr + REG_VPD_DATA);
+		return true;
+	}
+	return false;		/* timeout */
+}
+
+/*
+ * Reads the value from a PHY register
+ * hw - Struct containing variables accessed by shared code
+ * reg_addr - address of the PHY register to read
+ */
+s32 atl1_read_phy_reg(struct atl1_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;
+	iowrite32(val, hw->hw_addr + REG_MDIO_CTRL);
+	ioread32(hw->hw_addr + REG_MDIO_CTRL);
+
+	for (i = 0; i < MDIO_WAIT_TIMES; i++) {
+		udelay(2);
+		val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
+		if (!(val & (MDIO_START | MDIO_BUSY)))
+			break;
+	}
+	if (!(val & (MDIO_START | MDIO_BUSY))) {
+		*phy_data = (u16) val;
+		return ATL1_SUCCESS;
+	}
+	return ATL1_ERR_PHY;
+}
+
+#define CUSTOM_SPI_CS_SETUP	2
+#define CUSTOM_SPI_CLK_HI	2
+#define CUSTOM_SPI_CLK_LO	2
+#define CUSTOM_SPI_CS_HOLD	2
+#define CUSTOM_SPI_CS_HI	3
+
+static bool atl1_spi_read(struct atl1_hw *hw, u32 addr, u32 *buf)
+{
+	int i;
+	u32 value;
+
+	iowrite32(0, hw->hw_addr + REG_SPI_DATA);
+	iowrite32(addr, hw->hw_addr + REG_SPI_ADDR);
+
+	value = SPI_FLASH_CTRL_WAIT_READY |
+	    (CUSTOM_SPI_CS_SETUP & SPI_FLASH_CTRL_CS_SETUP_MASK) <<
+	    SPI_FLASH_CTRL_CS_SETUP_SHIFT | (CUSTOM_SPI_CLK_HI &
+					     SPI_FLASH_CTRL_CLK_HI_MASK) <<
+	    SPI_FLASH_CTRL_CLK_HI_SHIFT | (CUSTOM_SPI_CLK_LO &
+					   SPI_FLASH_CTRL_CLK_LO_MASK) <<
+	    SPI_FLASH_CTRL_CLK_LO_SHIFT | (CUSTOM_SPI_CS_HOLD &
+					   SPI_FLASH_CTRL_CS_HOLD_MASK) <<
+	    SPI_FLASH_CTRL_CS_HOLD_SHIFT | (CUSTOM_SPI_CS_HI &
+					    SPI_FLASH_CTRL_CS_HI_MASK) <<
+	    SPI_FLASH_CTRL_CS_HI_SHIFT | (1 & SPI_FLASH_CTRL_INS_MASK) <<
+	    SPI_FLASH_CTRL_INS_SHIFT;
+
+	iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
+
+	value |= SPI_FLASH_CTRL_START;
+	iowrite32(value, hw->hw_addr + REG_SPI_FLASH_CTRL);
+	ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
+
+	for (i = 0; i < 10; i++) {
+		msleep(1);	/* 1ms */
+		value = ioread32(hw->hw_addr + REG_SPI_FLASH_CTRL);
+		if (!(value & SPI_FLASH_CTRL_START))
+			break;
+	}
+
+	if (value & SPI_FLASH_CTRL_START)
+		return false;
+
+	*buf = ioread32(hw->hw_addr + REG_SPI_DATA);
+
+	return true;
+}
+
+/*
+ * get_permanent_address
+ * return 0 if get valid mac address, 
+ */
+static int atl1_get_permanent_address(struct atl1_hw *hw)
+{
+	u32 addr[2];
+	u32 i, control;
+	u16 reg;
+	u8 eth_addr[ETH_ALEN];
+	bool key_valid;
+
+	if (is_valid_ether_addr(hw->perm_mac_addr))
+		return 0;
+
+	/* init */
+	addr[0] = addr[1] = 0;
+
+	if (!atl1_check_eeprom_exist(hw)) {	/* eeprom exist */
+		reg = 0;
+		key_valid = false;
+		/* Read out all EEPROM content */
+		i = 0;
+		while (1) {
+			if (atl1_read_eeprom(hw, i + 0x100, &control)) {
+				if (key_valid) {
+					if (reg == REG_MAC_STA_ADDR)
+						addr[0] = control;
+					else if (reg == (REG_MAC_STA_ADDR + 4))
+						addr[1] = control;
+					key_valid = false;
+				} else if ((control & 0xff) == 0x5A) {
+					key_valid = true;
+					reg = (u16) (control >> 16);
+				} else
+					break;	/* assume data end while encount an invalid KEYWORD */
+			} else
+				break;	/* read error */
+			i += 4;
+		}
+
+/*
+ * The following 2 lines are the Attansic originals.  Saving for posterity.
+ *		*(u32 *) & eth_addr[2] = LONGSWAP(addr[0]);
+ *		*(u16 *) & eth_addr[0] = SHORTSWAP(*(u16 *) & 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 1;
+	}
+
+	/* see if SPI FLAGS exist ? */
+	addr[0] = addr[1] = 0;
+	reg = 0;
+	key_valid = false;
+	i = 0;
+	while (1) {
+		if (atl1_spi_read(hw, i + 0x1f000, &control)) {
+			if (key_valid) {
+				if (reg == REG_MAC_STA_ADDR)
+					addr[0] = control;
+				else if (reg == (REG_MAC_STA_ADDR + 4))
+					addr[1] = control;
+				key_valid = false;
+			} else if ((control & 0xff) == 0x5A) {
+				key_valid = true;
+				reg = (u16) (control >> 16);
+			} else
+				break;	/* data end */
+		} else
+			break;	/* read error */
+		i += 4;
+	}
+
+/*
+ * The following 2 lines are the Attansic originals.  Saving for posterity.
+ *	*(u32 *) & eth_addr[2] = LONGSWAP(addr[0]);
+ *	*(u16 *) & eth_addr[0] = SHORTSWAP(*(u16 *) & 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 1;
+}
+
+/*
+ * Reads the adapter's MAC address from the EEPROM 
+ * hw - Struct containing variables accessed by shared code
+ */
+s32 atl1_read_mac_addr(struct atl1_hw *hw)
+{
+	u16 i;
+
+	if (atl1_get_permanent_address(hw))
+		random_ether_addr(hw->perm_mac_addr);
+
+	for (i = 0; i < ETH_ALEN; i++)
+		hw->mac_addr[i] = hw->perm_mac_addr[i];
+	return ATL1_SUCCESS;
+}
+
+/*
+ * Hashes an address to determine its location in the multicast table
+ * hw - Struct containing variables accessed by shared code
+ * mc_addr - the multicast address to hash
+ *
+ * atl1_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 atl1_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr)
+{
+	u32 crc32, value = 0;
+	int i;
+
+	crc32 = ether_crc_le(6, mc_addr);
+	crc32 = ~crc32;
+	for (i = 0; i < 32; i++)
+		value |= (((crc32 >> i) & 1) << (31 - i));
+
+	return value;
+}
+
+/*
+ * Sets the bit in the multicast table corresponding to the hash value.
+ * hw - Struct containing variables accessed by shared code
+ * hash_value - Multicast address hash value
+ */
+void atl1_hash_set(struct atl1_hw *hw, u32 hash_value)
+{
+	u32 hash_bit, hash_reg;
+	u32 mta;
+
+	/*
+	 * The HASH Table  is a register array of 2 32-bit registers.
+	 * It is treated like an array of 64 bits.  We want to set
+	 * bit BitArray[hash_value]. So we figure out what register
+	 * the bit is in, read it, OR in the new bit, then write
+	 * back the new value.  The register is determined by the
+	 * upper 7 bits of the hash value and the bit within that
+	 * register are determined by the lower 5 bits of the value.
+	 */
+	hash_reg = (hash_value >> 31) & 0x1;
+	hash_bit = (hash_value >> 26) & 0x1F;
+	mta = ioread32((hw + REG_RX_HASH_TABLE) + (hash_reg << 2));
+	mta |= (1 << hash_bit);
+	iowrite32(mta, (hw->hw_addr + REG_RX_HASH_TABLE) + (hash_reg << 2));
+}
+
+/*
+ * 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
+ */
+s32 atl1_write_phy_reg(struct atl1_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;
+	iowrite32(val, hw->hw_addr + REG_MDIO_CTRL);
+	ioread32(hw->hw_addr + REG_MDIO_CTRL);
+
+	for (i = 0; i < MDIO_WAIT_TIMES; i++) {
+		udelay(2);
+		val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
+		if (!(val & (MDIO_START | MDIO_BUSY)))
+			break;
+	}
+
+	if (!(val & (MDIO_START | MDIO_BUSY)))
+		return ATL1_SUCCESS;
+
+	return ATL1_ERR_PHY;
+}
+
+/*
+ * Make L001's PHY out of Power Saving State (bug)
+ * hw - Struct containing variables accessed by shared code
+ * when power on, L001's PHY always on Power saving State
+ * (Gigabit Link forbidden)
+ */
+static s32 atl1_phy_leave_power_saving(struct atl1_hw *hw)
+{
+	s32 ret;
+	ret = atl1_write_phy_reg(hw, 29, 0x0029);
+	if (ret)
+		return ret;
+	return atl1_write_phy_reg(hw, 30, 0);
+}
+
+/*
+ *TODO: do something or get rid of this
+ */
+s32 atl1_phy_enter_power_saving(struct atl1_hw *hw)
+{
+/*    s32 ret_val;
+ *    u16 phy_data;
+ */
+
+/*
+    ret_val = atl1_write_phy_reg(hw, ...);
+    ret_val = atl1_write_phy_reg(hw, ...);
+    ....
+*/
+	return ATL1_SUCCESS;
+}
+
+/*
+ * 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)
+ */
+static s32 atl1_phy_reset(struct atl1_hw *hw)
+{
+	s32 ret_val;
+	u16 phy_data;
+
+	if (hw->media_type == MEDIA_TYPE_AUTO_SENSOR ||
+	    hw->media_type == MEDIA_TYPE_1000M_FULL)
+		phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN;
+	else {
+		switch (hw->media_type) {
+		case MEDIA_TYPE_100M_FULL:
+			phy_data =
+			    MII_CR_FULL_DUPLEX | MII_CR_SPEED_100 |
+			    MII_CR_RESET;
+			break;
+		case MEDIA_TYPE_100M_HALF:
+			phy_data = MII_CR_SPEED_100 | MII_CR_RESET;
+			break;
+		case MEDIA_TYPE_10M_FULL:
+			phy_data =
+			    MII_CR_FULL_DUPLEX | MII_CR_SPEED_10 | MII_CR_RESET;
+			break;
+		default:	/* MEDIA_TYPE_10M_HALF: */
+			phy_data = MII_CR_SPEED_10 | MII_CR_RESET;
+			break;
+		}
+	}
+
+	ret_val = atl1_write_phy_reg(hw, MII_BMCR, phy_data);
+	if (ret_val) {
+		u32 val;
+		int i;
+		/* pcie serdes link may be down! */
+		printk(KERN_DEBUG "%s: autoneg caused pcie phy link down\n", 
+			atl1_driver_name);
+
+		for (i = 0; i < 25; i++) {
+			msleep(1);
+			val = ioread32(hw->hw_addr + REG_MDIO_CTRL);
+			if (!(val & (MDIO_START | MDIO_BUSY)))
+				break;
+		}
+
+		if ((val & (MDIO_START | MDIO_BUSY)) != 0) {
+			printk(KERN_WARNING 
+				"%s: pcie link down at least for 25ms\n", 
+				atl1_driver_name);
+			return ret_val;
+		}
+	}
+	return ATL1_SUCCESS;
+}
+
+/*
+ * Configures PHY autoneg and flow control advertisement settings
+ * hw - Struct containing variables accessed by shared code
+ */
+s32 atl1_phy_setup_autoneg_adv(struct atl1_hw *hw)
+{
+	s32 ret_val;
+	s16 mii_autoneg_adv_reg;
+	s16 mii_1000t_ctrl_reg;
+
+	/* Read the MII Auto-Neg Advertisement Register (Address 4). */
+	mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK;
+
+	/* Read the MII 1000Base-T Control Register (Address 9). */
+	mii_1000t_ctrl_reg = MII_AT001_CR_1000T_DEFAULT_CAP_MASK;
+
+	/*
+	 * First we clear all the 10/100 mb speed bits in the Auto-Neg
+	 * Advertisement Register (Address 4) and the 1000 mb speed bits in
+	 * the  1000Base-T Control Register (Address 9).
+	 */
+	mii_autoneg_adv_reg &= ~MII_AR_SPEED_MASK;
+	mii_1000t_ctrl_reg &= ~MII_AT001_CR_1000T_SPEED_MASK;
+
+	/*
+	 * Need to parse media_type  and set up
+	 * the appropriate PHY registers.
+	 */
+	switch (hw->media_type) {
+	case MEDIA_TYPE_AUTO_SENSOR:
+		mii_autoneg_adv_reg |= (MII_AR_10T_HD_CAPS |
+					MII_AR_10T_FD_CAPS |
+					MII_AR_100TX_HD_CAPS |
+					MII_AR_100TX_FD_CAPS);
+		mii_1000t_ctrl_reg |= MII_AT001_CR_1000T_FD_CAPS;
+		break;
+
+	case MEDIA_TYPE_1000M_FULL:
+		mii_1000t_ctrl_reg |= MII_AT001_CR_1000T_FD_CAPS;
+		break;
+
+	case MEDIA_TYPE_100M_FULL:
+		mii_autoneg_adv_reg |= MII_AR_100TX_FD_CAPS;
+		break;
+
+	case MEDIA_TYPE_100M_HALF:
+		mii_autoneg_adv_reg |= MII_AR_100TX_HD_CAPS;
+		break;
+
+	case MEDIA_TYPE_10M_FULL:
+		mii_autoneg_adv_reg |= MII_AR_10T_FD_CAPS;
+		break;
+
+	default:
+		mii_autoneg_adv_reg |= MII_AR_10T_HD_CAPS;
+		break;
+	}
+
+	/* flow control fixed to enable all */
+	mii_autoneg_adv_reg |= (MII_AR_ASM_DIR | MII_AR_PAUSE);
+
+	hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg;
+	hw->mii_1000t_ctrl_reg = mii_1000t_ctrl_reg;
+
+	ret_val = atl1_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg);
+	if (ret_val)
+		return ret_val;
+
+	ret_val = atl1_write_phy_reg(hw, MII_AT001_CR, mii_1000t_ctrl_reg);
+	if (ret_val)
+		return ret_val;
+
+	return ATL1_SUCCESS;
+}
+
+/*
+ * Configures link settings.
+ * hw - Struct containing variables accessed by shared code
+ * Assumes the hardware has previously been reset and the
+ * transmitter and receiver are not enabled.
+ */
+static s32 atl1_setup_link(struct atl1_hw *hw)
+{
+	s32 ret_val;
+
+	/*
+	 * Options:
+	 *  PHY will advertise value(s) parsed from
+	 *  autoneg_advertised and fc
+	 *  no matter what autoneg is , We will not wait link result.
+	 */
+	ret_val = atl1_phy_setup_autoneg_adv(hw);
+	if (ret_val) {
+		printk(KERN_DEBUG "%s: error setting up autonegotiation\n", 
+			atl1_driver_name);
+		return ret_val;
+	}
+	/* SW.Reset , En-Auto-Neg if needed */
+	ret_val = atl1_phy_reset(hw);
+	if (ret_val) {
+		printk(KERN_DEBUG "%s: error resetting the phy\n", 
+			atl1_driver_name);
+		return ret_val;
+	}
+	hw->phy_configured = true;
+	return ret_val;
+}
+
+static struct atl1_spi_flash_dev flash_table[] = {
+/*	MFR_NAME  WRSR  READ  PRGM  WREN  WRDI  RDSR  RDID  SECTOR_ERASE CHIP_ERASE */
+	{"Atmel", 0x00, 0x03, 0x02, 0x06, 0x04, 0x05, 0x15, 0x52,        0x62},
+	{"SST",   0x01, 0x03, 0x02, 0x06, 0x04, 0x05, 0x90, 0x20,        0x60},
+	{"ST",    0x01, 0x03, 0x02, 0x06, 0x04, 0x05, 0xAB, 0xD8,        0xC7},
+};
+
+static void atl1_init_flash_opcode(struct atl1_hw *hw)
+{
+	if (hw->flash_vendor >= sizeof(flash_table) / sizeof(flash_table[0]))
+		hw->flash_vendor = 0;	/* ATMEL */
+
+	/* Init OP table */
+	iowrite8(flash_table[hw->flash_vendor].cmd_program,
+		hw->hw_addr + REG_SPI_FLASH_OP_PROGRAM);
+	iowrite8(flash_table[hw->flash_vendor].cmd_sector_erase,
+		hw->hw_addr + REG_SPI_FLASH_OP_SC_ERASE);
+	iowrite8(flash_table[hw->flash_vendor].cmd_chip_erase,
+		hw->hw_addr + REG_SPI_FLASH_OP_CHIP_ERASE);
+	iowrite8(flash_table[hw->flash_vendor].cmd_rdid,
+		hw->hw_addr + REG_SPI_FLASH_OP_RDID);
+	iowrite8(flash_table[hw->flash_vendor].cmd_wren,
+		hw->hw_addr + REG_SPI_FLASH_OP_WREN);
+	iowrite8(flash_table[hw->flash_vendor].cmd_rdsr,
+		hw->hw_addr + REG_SPI_FLASH_OP_RDSR);
+	iowrite8(flash_table[hw->flash_vendor].cmd_wrsr,
+		hw->hw_addr + REG_SPI_FLASH_OP_WRSR);
+	iowrite8(flash_table[hw->flash_vendor].cmd_read,
+		hw->hw_addr + REG_SPI_FLASH_OP_READ);
+}
+
+/*
+ * Performs basic configuration of the adapter.
+ * hw - Struct containing variables accessed by shared code
+ * Assumes that the controller has previously been reset and is in a
+ * post-reset uninitialized state. Initializes multicast table, 
+ * and  Calls routines to setup link
+ * Leaves the transmit and receive units disabled and uninitialized.
+ */
+s32 atl1_init_hw(struct atl1_hw *hw)
+{
+	u32 ret_val = 0;
+
+	/* Zero out the Multicast HASH table */
+	iowrite32(0, hw->hw_addr + REG_RX_HASH_TABLE);
+	/* clear the old settings from the multicast hash table */
+	iowrite32(0, (hw->hw_addr + REG_RX_HASH_TABLE) + (1 << 2));
+
+	atl1_init_flash_opcode(hw);
+
+	if (!hw->phy_configured) {
+		/* enable GPHY LinkChange Interrrupt */
+		ret_val = atl1_write_phy_reg(hw, 18, 0xC00);
+		if (ret_val)
+			return ret_val;
+		/* make PHY out of power-saving state */
+		ret_val = atl1_phy_leave_power_saving(hw);
+		if (ret_val)
+			return ret_val;
+		/* Call a subroutine to configure the link */
+		ret_val = atl1_setup_link(hw);
+	}
+	return ret_val;
+}
+
+/*
+ * Detects the current speed and duplex settings of the hardware.
+ * hw - Struct containing variables accessed by shared code
+ * speed - Speed of the connection
+ * duplex - Duplex setting of the connection
+ */
+s32 atl1_get_speed_and_duplex(struct atl1_hw *hw, u16 *speed, u16 *duplex)
+{
+	s32 ret_val;
+	u16 phy_data;
+
+	/* ; --- Read   PHY Specific Status Register (17) */
+	ret_val = atl1_read_phy_reg(hw, MII_AT001_PSSR, &phy_data);
+	if (ret_val)
+		return ret_val;
+
+	if (!(phy_data & MII_AT001_PSSR_SPD_DPLX_RESOLVED))
+		return ATL1_ERR_PHY_RES;
+
+	switch (phy_data & MII_AT001_PSSR_SPEED) {
+	case MII_AT001_PSSR_1000MBS:
+		*speed = SPEED_1000;
+		break;
+	case MII_AT001_PSSR_100MBS:
+		*speed = SPEED_100;
+		break;
+	case MII_AT001_PSSR_10MBS:
+		*speed = SPEED_10;
+		break;
+	default:
+		printk(KERN_DEBUG "%s: error getting speed\n", 
+			atl1_driver_name);
+		return ATL1_ERR_PHY_SPEED;
+		break;
+	}
+	if (phy_data & MII_AT001_PSSR_DPLX)
+		*duplex = FULL_DUPLEX;
+	else
+		*duplex = HALF_DUPLEX;
+
+	return ATL1_SUCCESS;
+}
+
+void atl1_set_mac_addr(struct atl1_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]));
+	iowrite32(value, hw->hw_addr + REG_MAC_STA_ADDR);
+	/* high dword */
+	value = (((u32) hw->mac_addr[0]) << 8) | (((u32) hw->mac_addr[1]));
+	iowrite32(value, (hw->hw_addr + REG_MAC_STA_ADDR) + (1 << 2));
+}

include/linux/pci_ids.h

@@ -2073,6 +2073,8 @@
 
 #define PCI_VENDOR_ID_PASEMI		0x1959
 
+#define PCI_VENDOR_ID_ATTANSIC		0x1969
+
 #define PCI_VENDOR_ID_JMICRON		0x197B
 #define PCI_DEVICE_ID_JMICRON_JMB360	0x2360
 #define PCI_DEVICE_ID_JMICRON_JMB361	0x2361