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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-05-20 06:55:16 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-11 16:29:59 -0700
commit2b133ad6e9e96798007e64eb912c42fa00adef0a (patch)
tree34d1760a9257b150289893cda05b4adfa1990306 /drivers/net/atlx/atl2.c
parent3401299a1b9e747cbf7de2cc0c8f6376c3cbe565 (diff)
atl*: Move the Atheros drivers
Move the Atheros drivers into drivers/net/ethernet/atheros/ and make the necessary Kconfig and Makefile changes. CC: Jay Cliburn <jcliburn@gmail.com> CC: Chris Snook <chris.snook@gmail.com> CC: Jie Yang <jie.yang@atheros.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/atlx/atl2.c')
-rw-r--r--drivers/net/atlx/atl2.c3119
1 files changed, 0 insertions, 3119 deletions
diff --git a/drivers/net/atlx/atl2.c b/drivers/net/atlx/atl2.c
deleted file mode 100644
index d4f7dda3972..00000000000
--- a/drivers/net/atlx/atl2.c
+++ /dev/null
@@ -1,3119 +0,0 @@
-/*
- * Copyright(c) 2006 - 2007 Atheros Corporation. All rights reserved.
- * Copyright(c) 2007 - 2008 Chris Snook <csnook@redhat.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/atomic.h>
-#include <linux/crc32.h>
-#include <linux/dma-mapping.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/hardirq.h>
-#include <linux/if_vlan.h>
-#include <linux/in.h>
-#include <linux/interrupt.h>
-#include <linux/ip.h>
-#include <linux/irqflags.h>
-#include <linux/irqreturn.h>
-#include <linux/mii.h>
-#include <linux/net.h>
-#include <linux/netdevice.h>
-#include <linux/pci.h>
-#include <linux/pci_ids.h>
-#include <linux/pm.h>
-#include <linux/skbuff.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/string.h>
-#include <linux/tcp.h>
-#include <linux/timer.h>
-#include <linux/types.h>
-#include <linux/workqueue.h>
-
-#include "atl2.h"
-
-#define ATL2_DRV_VERSION "2.2.3"
-
-static const char atl2_driver_name[] = "atl2";
-static const char atl2_driver_string[] = "Atheros(R) L2 Ethernet Driver";
-static const char atl2_copyright[] = "Copyright (c) 2007 Atheros Corporation.";
-static const char atl2_driver_version[] = ATL2_DRV_VERSION;
-
-MODULE_AUTHOR("Atheros Corporation <xiong.huang@atheros.com>, Chris Snook <csnook@redhat.com>");
-MODULE_DESCRIPTION("Atheros Fast Ethernet Network Driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(ATL2_DRV_VERSION);
-
-/*
- * atl2_pci_tbl - PCI Device ID Table
- */
-static DEFINE_PCI_DEVICE_TABLE(atl2_pci_tbl) = {
- {PCI_DEVICE(PCI_VENDOR_ID_ATTANSIC, PCI_DEVICE_ID_ATTANSIC_L2)},
- /* required last entry */
- {0,}
-};
-MODULE_DEVICE_TABLE(pci, atl2_pci_tbl);
-
-static void atl2_set_ethtool_ops(struct net_device *netdev);
-
-static void atl2_check_options(struct atl2_adapter *adapter);
-
-/*
- * atl2_sw_init - Initialize general software structures (struct atl2_adapter)
- * @adapter: board private structure to initialize
- *
- * atl2_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 atl2_sw_init(struct atl2_adapter *adapter)
-{
- struct atl2_hw *hw = &adapter->hw;
- struct pci_dev *pdev = adapter->pdev;
-
- /* PCI config space info */
- hw->vendor_id = pdev->vendor;
- hw->device_id = pdev->device;
- hw->subsystem_vendor_id = pdev->subsystem_vendor;
- hw->subsystem_id = pdev->subsystem_device;
- hw->revision_id = pdev->revision;
-
- pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
-
- adapter->wol = 0;
- adapter->ict = 50000; /* ~100ms */
- adapter->link_speed = SPEED_0; /* hardware init */
- adapter->link_duplex = FULL_DUPLEX;
-
- hw->phy_configured = false;
- hw->preamble_len = 7;
- hw->ipgt = 0x60;
- hw->min_ifg = 0x50;
- hw->ipgr1 = 0x40;
- hw->ipgr2 = 0x60;
- hw->retry_buf = 2;
- hw->max_retry = 0xf;
- hw->lcol = 0x37;
- hw->jam_ipg = 7;
- hw->fc_rxd_hi = 0;
- hw->fc_rxd_lo = 0;
- hw->max_frame_size = adapter->netdev->mtu;
-
- spin_lock_init(&adapter->stats_lock);
-
- set_bit(__ATL2_DOWN, &adapter->flags);
-
- return 0;
-}
-
-/*
- * atl2_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 atl2_set_multi(struct net_device *netdev)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- struct atl2_hw *hw = &adapter->hw;
- struct netdev_hw_addr *ha;
- u32 rctl;
- u32 hash_value;
-
- /* Check for Promiscuous and All Multicast modes */
- rctl = ATL2_READ_REG(hw, REG_MAC_CTRL);
-
- if (netdev->flags & IFF_PROMISC) {
- rctl |= MAC_CTRL_PROMIS_EN;
- } else if (netdev->flags & IFF_ALLMULTI) {
- rctl |= MAC_CTRL_MC_ALL_EN;
- rctl &= ~MAC_CTRL_PROMIS_EN;
- } else
- rctl &= ~(MAC_CTRL_PROMIS_EN | MAC_CTRL_MC_ALL_EN);
-
- ATL2_WRITE_REG(hw, REG_MAC_CTRL, rctl);
-
- /* clear the old settings from the multicast hash table */
- ATL2_WRITE_REG(hw, REG_RX_HASH_TABLE, 0);
- ATL2_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, 1, 0);
-
- /* comoute mc addresses' hash value ,and put it into hash table */
- netdev_for_each_mc_addr(ha, netdev) {
- hash_value = atl2_hash_mc_addr(hw, ha->addr);
- atl2_hash_set(hw, hash_value);
- }
-}
-
-static void init_ring_ptrs(struct atl2_adapter *adapter)
-{
- /* Read / Write Ptr Initialize: */
- adapter->txd_write_ptr = 0;
- atomic_set(&adapter->txd_read_ptr, 0);
-
- adapter->rxd_read_ptr = 0;
- adapter->rxd_write_ptr = 0;
-
- atomic_set(&adapter->txs_write_ptr, 0);
- adapter->txs_next_clear = 0;
-}
-
-/*
- * atl2_configure - Configure Transmit&Receive Unit after Reset
- * @adapter: board private structure
- *
- * Configure the Tx /Rx unit of the MAC after a reset.
- */
-static int atl2_configure(struct atl2_adapter *adapter)
-{
- struct atl2_hw *hw = &adapter->hw;
- u32 value;
-
- /* clear interrupt status */
- ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0xffffffff);
-
- /* set MAC Address */
- value = (((u32)hw->mac_addr[2]) << 24) |
- (((u32)hw->mac_addr[3]) << 16) |
- (((u32)hw->mac_addr[4]) << 8) |
- (((u32)hw->mac_addr[5]));
- ATL2_WRITE_REG(hw, REG_MAC_STA_ADDR, value);
- value = (((u32)hw->mac_addr[0]) << 8) |
- (((u32)hw->mac_addr[1]));
- ATL2_WRITE_REG(hw, (REG_MAC_STA_ADDR+4), value);
-
- /* HI base address */
- ATL2_WRITE_REG(hw, REG_DESC_BASE_ADDR_HI,
- (u32)((adapter->ring_dma & 0xffffffff00000000ULL) >> 32));
-
- /* LO base address */
- ATL2_WRITE_REG(hw, REG_TXD_BASE_ADDR_LO,
- (u32)(adapter->txd_dma & 0x00000000ffffffffULL));
- ATL2_WRITE_REG(hw, REG_TXS_BASE_ADDR_LO,
- (u32)(adapter->txs_dma & 0x00000000ffffffffULL));
- ATL2_WRITE_REG(hw, REG_RXD_BASE_ADDR_LO,
- (u32)(adapter->rxd_dma & 0x00000000ffffffffULL));
-
- /* element count */
- ATL2_WRITE_REGW(hw, REG_TXD_MEM_SIZE, (u16)(adapter->txd_ring_size/4));
- ATL2_WRITE_REGW(hw, REG_TXS_MEM_SIZE, (u16)adapter->txs_ring_size);
- ATL2_WRITE_REGW(hw, REG_RXD_BUF_NUM, (u16)adapter->rxd_ring_size);
-
- /* config Internal SRAM */
-/*
- ATL2_WRITE_REGW(hw, REG_SRAM_TXRAM_END, sram_tx_end);
- ATL2_WRITE_REGW(hw, REG_SRAM_TXRAM_END, sram_rx_end);
-*/
-
- /* config IPG/IFG */
- value = (((u32)hw->ipgt & MAC_IPG_IFG_IPGT_MASK) <<
- MAC_IPG_IFG_IPGT_SHIFT) |
- (((u32)hw->min_ifg & MAC_IPG_IFG_MIFG_MASK) <<
- MAC_IPG_IFG_MIFG_SHIFT) |
- (((u32)hw->ipgr1 & MAC_IPG_IFG_IPGR1_MASK) <<
- MAC_IPG_IFG_IPGR1_SHIFT)|
- (((u32)hw->ipgr2 & MAC_IPG_IFG_IPGR2_MASK) <<
- MAC_IPG_IFG_IPGR2_SHIFT);
- ATL2_WRITE_REG(hw, REG_MAC_IPG_IFG, value);
-
- /* config Half-Duplex Control */
- value = ((u32)hw->lcol & MAC_HALF_DUPLX_CTRL_LCOL_MASK) |
- (((u32)hw->max_retry & MAC_HALF_DUPLX_CTRL_RETRY_MASK) <<
- MAC_HALF_DUPLX_CTRL_RETRY_SHIFT) |
- MAC_HALF_DUPLX_CTRL_EXC_DEF_EN |
- (0xa << MAC_HALF_DUPLX_CTRL_ABEBT_SHIFT) |
- (((u32)hw->jam_ipg & MAC_HALF_DUPLX_CTRL_JAMIPG_MASK) <<
- MAC_HALF_DUPLX_CTRL_JAMIPG_SHIFT);
- ATL2_WRITE_REG(hw, REG_MAC_HALF_DUPLX_CTRL, value);
-
- /* set Interrupt Moderator Timer */
- ATL2_WRITE_REGW(hw, REG_IRQ_MODU_TIMER_INIT, adapter->imt);
- ATL2_WRITE_REG(hw, REG_MASTER_CTRL, MASTER_CTRL_ITIMER_EN);
-
- /* set Interrupt Clear Timer */
- ATL2_WRITE_REGW(hw, REG_CMBDISDMA_TIMER, adapter->ict);
-
- /* set MTU */
- ATL2_WRITE_REG(hw, REG_MTU, adapter->netdev->mtu +
- ENET_HEADER_SIZE + VLAN_SIZE + ETHERNET_FCS_SIZE);
-
- /* 1590 */
- ATL2_WRITE_REG(hw, REG_TX_CUT_THRESH, 0x177);
-
- /* flow control */
- ATL2_WRITE_REGW(hw, REG_PAUSE_ON_TH, hw->fc_rxd_hi);
- ATL2_WRITE_REGW(hw, REG_PAUSE_OFF_TH, hw->fc_rxd_lo);
-
- /* Init mailbox */
- ATL2_WRITE_REGW(hw, REG_MB_TXD_WR_IDX, (u16)adapter->txd_write_ptr);
- ATL2_WRITE_REGW(hw, REG_MB_RXD_RD_IDX, (u16)adapter->rxd_read_ptr);
-
- /* enable DMA read/write */
- ATL2_WRITE_REGB(hw, REG_DMAR, DMAR_EN);
- ATL2_WRITE_REGB(hw, REG_DMAW, DMAW_EN);
-
- value = ATL2_READ_REG(&adapter->hw, REG_ISR);
- if ((value & ISR_PHY_LINKDOWN) != 0)
- value = 1; /* config failed */
- else
- value = 0;
-
- /* clear all interrupt status */
- ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0x3fffffff);
- ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0);
- return value;
-}
-
-/*
- * atl2_setup_ring_resources - allocate Tx / RX descriptor resources
- * @adapter: board private structure
- *
- * Return 0 on success, negative on failure
- */
-static s32 atl2_setup_ring_resources(struct atl2_adapter *adapter)
-{
- struct pci_dev *pdev = adapter->pdev;
- int size;
- u8 offset = 0;
-
- /* real ring DMA buffer */
- adapter->ring_size = size =
- adapter->txd_ring_size * 1 + 7 + /* dword align */
- adapter->txs_ring_size * 4 + 7 + /* dword align */
- adapter->rxd_ring_size * 1536 + 127; /* 128bytes align */
-
- adapter->ring_vir_addr = pci_alloc_consistent(pdev, size,
- &adapter->ring_dma);
- if (!adapter->ring_vir_addr)
- return -ENOMEM;
- memset(adapter->ring_vir_addr, 0, adapter->ring_size);
-
- /* Init TXD Ring */
- adapter->txd_dma = adapter->ring_dma ;
- offset = (adapter->txd_dma & 0x7) ? (8 - (adapter->txd_dma & 0x7)) : 0;
- adapter->txd_dma += offset;
- adapter->txd_ring = adapter->ring_vir_addr + offset;
-
- /* Init TXS Ring */
- adapter->txs_dma = adapter->txd_dma + adapter->txd_ring_size;
- offset = (adapter->txs_dma & 0x7) ? (8 - (adapter->txs_dma & 0x7)) : 0;
- adapter->txs_dma += offset;
- adapter->txs_ring = (struct tx_pkt_status *)
- (((u8 *)adapter->txd_ring) + (adapter->txd_ring_size + offset));
-
- /* Init RXD Ring */
- adapter->rxd_dma = adapter->txs_dma + adapter->txs_ring_size * 4;
- offset = (adapter->rxd_dma & 127) ?
- (128 - (adapter->rxd_dma & 127)) : 0;
- if (offset > 7)
- offset -= 8;
- else
- offset += (128 - 8);
-
- adapter->rxd_dma += offset;
- adapter->rxd_ring = (struct rx_desc *) (((u8 *)adapter->txs_ring) +
- (adapter->txs_ring_size * 4 + offset));
-
-/*
- * Read / Write Ptr Initialize:
- * init_ring_ptrs(adapter);
- */
- return 0;
-}
-
-/*
- * atl2_irq_enable - Enable default interrupt generation settings
- * @adapter: board private structure
- */
-static inline void atl2_irq_enable(struct atl2_adapter *adapter)
-{
- ATL2_WRITE_REG(&adapter->hw, REG_IMR, IMR_NORMAL_MASK);
- ATL2_WRITE_FLUSH(&adapter->hw);
-}
-
-/*
- * atl2_irq_disable - Mask off interrupt generation on the NIC
- * @adapter: board private structure
- */
-static inline void atl2_irq_disable(struct atl2_adapter *adapter)
-{
- ATL2_WRITE_REG(&adapter->hw, REG_IMR, 0);
- ATL2_WRITE_FLUSH(&adapter->hw);
- synchronize_irq(adapter->pdev->irq);
-}
-
-static void __atl2_vlan_mode(u32 features, u32 *ctrl)
-{
- if (features & NETIF_F_HW_VLAN_RX) {
- /* enable VLAN tag insert/strip */
- *ctrl |= MAC_CTRL_RMV_VLAN;
- } else {
- /* disable VLAN tag insert/strip */
- *ctrl &= ~MAC_CTRL_RMV_VLAN;
- }
-}
-
-static void atl2_vlan_mode(struct net_device *netdev, u32 features)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- u32 ctrl;
-
- atl2_irq_disable(adapter);
-
- ctrl = ATL2_READ_REG(&adapter->hw, REG_MAC_CTRL);
- __atl2_vlan_mode(features, &ctrl);
- ATL2_WRITE_REG(&adapter->hw, REG_MAC_CTRL, ctrl);
-
- atl2_irq_enable(adapter);
-}
-
-static void atl2_restore_vlan(struct atl2_adapter *adapter)
-{
- atl2_vlan_mode(adapter->netdev, adapter->netdev->features);
-}
-
-static u32 atl2_fix_features(struct net_device *netdev, u32 features)
-{
- /*
- * Since there is no support for separate rx/tx vlan accel
- * enable/disable make sure tx flag is always in same state as rx.
- */
- if (features & NETIF_F_HW_VLAN_RX)
- features |= NETIF_F_HW_VLAN_TX;
- else
- features &= ~NETIF_F_HW_VLAN_TX;
-
- return features;
-}
-
-static int atl2_set_features(struct net_device *netdev, u32 features)
-{
- u32 changed = netdev->features ^ features;
-
- if (changed & NETIF_F_HW_VLAN_RX)
- atl2_vlan_mode(netdev, features);
-
- return 0;
-}
-
-static void atl2_intr_rx(struct atl2_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- struct rx_desc *rxd;
- struct sk_buff *skb;
-
- do {
- rxd = adapter->rxd_ring+adapter->rxd_write_ptr;
- if (!rxd->status.update)
- break; /* end of tx */
-
- /* clear this flag at once */
- rxd->status.update = 0;
-
- if (rxd->status.ok && rxd->status.pkt_size >= 60) {
- int rx_size = (int)(rxd->status.pkt_size - 4);
- /* alloc new buffer */
- skb = netdev_alloc_skb_ip_align(netdev, rx_size);
- if (NULL == skb) {
- printk(KERN_WARNING
- "%s: Mem squeeze, deferring packet.\n",
- netdev->name);
- /*
- * Check that some rx space is free. If not,
- * free one and mark stats->rx_dropped++.
- */
- netdev->stats.rx_dropped++;
- break;
- }
- memcpy(skb->data, rxd->packet, rx_size);
- skb_put(skb, rx_size);
- skb->protocol = eth_type_trans(skb, netdev);
- if (rxd->status.vlan) {
- u16 vlan_tag = (rxd->status.vtag>>4) |
- ((rxd->status.vtag&7) << 13) |
- ((rxd->status.vtag&8) << 9);
-
- __vlan_hwaccel_put_tag(skb, vlan_tag);
- }
- netif_rx(skb);
- netdev->stats.rx_bytes += rx_size;
- netdev->stats.rx_packets++;
- } else {
- netdev->stats.rx_errors++;
-
- if (rxd->status.ok && rxd->status.pkt_size <= 60)
- netdev->stats.rx_length_errors++;
- if (rxd->status.mcast)
- netdev->stats.multicast++;
- if (rxd->status.crc)
- netdev->stats.rx_crc_errors++;
- if (rxd->status.align)
- netdev->stats.rx_frame_errors++;
- }
-
- /* advance write ptr */
- if (++adapter->rxd_write_ptr == adapter->rxd_ring_size)
- adapter->rxd_write_ptr = 0;
- } while (1);
-
- /* update mailbox? */
- adapter->rxd_read_ptr = adapter->rxd_write_ptr;
- ATL2_WRITE_REGW(&adapter->hw, REG_MB_RXD_RD_IDX, adapter->rxd_read_ptr);
-}
-
-static void atl2_intr_tx(struct atl2_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- u32 txd_read_ptr;
- u32 txs_write_ptr;
- struct tx_pkt_status *txs;
- struct tx_pkt_header *txph;
- int free_hole = 0;
-
- do {
- txs_write_ptr = (u32) atomic_read(&adapter->txs_write_ptr);
- txs = adapter->txs_ring + txs_write_ptr;
- if (!txs->update)
- break; /* tx stop here */
-
- free_hole = 1;
- txs->update = 0;
-
- if (++txs_write_ptr == adapter->txs_ring_size)
- txs_write_ptr = 0;
- atomic_set(&adapter->txs_write_ptr, (int)txs_write_ptr);
-
- txd_read_ptr = (u32) atomic_read(&adapter->txd_read_ptr);
- txph = (struct tx_pkt_header *)
- (((u8 *)adapter->txd_ring) + txd_read_ptr);
-
- if (txph->pkt_size != txs->pkt_size) {
- struct tx_pkt_status *old_txs = txs;
- printk(KERN_WARNING
- "%s: txs packet size not consistent with txd"
- " txd_:0x%08x, txs_:0x%08x!\n",
- adapter->netdev->name,
- *(u32 *)txph, *(u32 *)txs);
- printk(KERN_WARNING
- "txd read ptr: 0x%x\n",
- txd_read_ptr);
- txs = adapter->txs_ring + txs_write_ptr;
- printk(KERN_WARNING
- "txs-behind:0x%08x\n",
- *(u32 *)txs);
- if (txs_write_ptr < 2) {
- txs = adapter->txs_ring +
- (adapter->txs_ring_size +
- txs_write_ptr - 2);
- } else {
- txs = adapter->txs_ring + (txs_write_ptr - 2);
- }
- printk(KERN_WARNING
- "txs-before:0x%08x\n",
- *(u32 *)txs);
- txs = old_txs;
- }
-
- /* 4for TPH */
- txd_read_ptr += (((u32)(txph->pkt_size) + 7) & ~3);
- if (txd_read_ptr >= adapter->txd_ring_size)
- txd_read_ptr -= adapter->txd_ring_size;
-
- atomic_set(&adapter->txd_read_ptr, (int)txd_read_ptr);
-
- /* tx statistics: */
- if (txs->ok) {
- netdev->stats.tx_bytes += txs->pkt_size;
- netdev->stats.tx_packets++;
- }
- else
- netdev->stats.tx_errors++;
-
- if (txs->defer)
- netdev->stats.collisions++;
- if (txs->abort_col)
- netdev->stats.tx_aborted_errors++;
- if (txs->late_col)
- netdev->stats.tx_window_errors++;
- if (txs->underun)
- netdev->stats.tx_fifo_errors++;
- } while (1);
-
- if (free_hole) {
- if (netif_queue_stopped(adapter->netdev) &&
- netif_carrier_ok(adapter->netdev))
- netif_wake_queue(adapter->netdev);
- }
-}
-
-static void atl2_check_for_link(struct atl2_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- u16 phy_data = 0;
-
- spin_lock(&adapter->stats_lock);
- atl2_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
- atl2_read_phy_reg(&adapter->hw, MII_BMSR, &phy_data);
- spin_unlock(&adapter->stats_lock);
-
- /* notify upper layer link down ASAP */
- if (!(phy_data & BMSR_LSTATUS)) { /* Link Down */
- if (netif_carrier_ok(netdev)) { /* old link state: Up */
- printk(KERN_INFO "%s: %s NIC Link is Down\n",
- atl2_driver_name, netdev->name);
- adapter->link_speed = SPEED_0;
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
- }
- }
- schedule_work(&adapter->link_chg_task);
-}
-
-static inline void atl2_clear_phy_int(struct atl2_adapter *adapter)
-{
- u16 phy_data;
- spin_lock(&adapter->stats_lock);
- atl2_read_phy_reg(&adapter->hw, 19, &phy_data);
- spin_unlock(&adapter->stats_lock);
-}
-
-/*
- * atl2_intr - Interrupt Handler
- * @irq: interrupt number
- * @data: pointer to a network interface device structure
- * @pt_regs: CPU registers structure
- */
-static irqreturn_t atl2_intr(int irq, void *data)
-{
- struct atl2_adapter *adapter = netdev_priv(data);
- struct atl2_hw *hw = &adapter->hw;
- u32 status;
-
- status = ATL2_READ_REG(hw, REG_ISR);
- if (0 == status)
- return IRQ_NONE;
-
- /* link event */
- if (status & ISR_PHY)
- atl2_clear_phy_int(adapter);
-
- /* clear ISR status, and Enable CMB DMA/Disable Interrupt */
- ATL2_WRITE_REG(hw, REG_ISR, status | ISR_DIS_INT);
-
- /* check if PCIE PHY Link down */
- if (status & ISR_PHY_LINKDOWN) {
- if (netif_running(adapter->netdev)) { /* reset MAC */
- ATL2_WRITE_REG(hw, REG_ISR, 0);
- ATL2_WRITE_REG(hw, REG_IMR, 0);
- ATL2_WRITE_FLUSH(hw);
- schedule_work(&adapter->reset_task);
- return IRQ_HANDLED;
- }
- }
-
- /* check if DMA read/write error? */
- if (status & (ISR_DMAR_TO_RST | ISR_DMAW_TO_RST)) {
- ATL2_WRITE_REG(hw, REG_ISR, 0);
- ATL2_WRITE_REG(hw, REG_IMR, 0);
- ATL2_WRITE_FLUSH(hw);
- schedule_work(&adapter->reset_task);
- return IRQ_HANDLED;
- }
-
- /* link event */
- if (status & (ISR_PHY | ISR_MANUAL)) {
- adapter->netdev->stats.tx_carrier_errors++;
- atl2_check_for_link(adapter);
- }
-
- /* transmit event */
- if (status & ISR_TX_EVENT)
- atl2_intr_tx(adapter);
-
- /* rx exception */
- if (status & ISR_RX_EVENT)
- atl2_intr_rx(adapter);
-
- /* re-enable Interrupt */
- ATL2_WRITE_REG(&adapter->hw, REG_ISR, 0);
- return IRQ_HANDLED;
-}
-
-static int atl2_request_irq(struct atl2_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- int flags, err = 0;
-
- flags = IRQF_SHARED;
- adapter->have_msi = true;
- err = pci_enable_msi(adapter->pdev);
- if (err)
- adapter->have_msi = false;
-
- if (adapter->have_msi)
- flags &= ~IRQF_SHARED;
-
- return request_irq(adapter->pdev->irq, atl2_intr, flags, netdev->name,
- netdev);
-}
-
-/*
- * atl2_free_ring_resources - Free Tx / RX descriptor Resources
- * @adapter: board private structure
- *
- * Free all transmit software resources
- */
-static void atl2_free_ring_resources(struct atl2_adapter *adapter)
-{
- struct pci_dev *pdev = adapter->pdev;
- pci_free_consistent(pdev, adapter->ring_size, adapter->ring_vir_addr,
- adapter->ring_dma);
-}
-
-/*
- * atl2_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 atl2_open(struct net_device *netdev)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- int err;
- u32 val;
-
- /* disallow open during test */
- if (test_bit(__ATL2_TESTING, &adapter->flags))
- return -EBUSY;
-
- /* allocate transmit descriptors */
- err = atl2_setup_ring_resources(adapter);
- if (err)
- return err;
-
- err = atl2_init_hw(&adapter->hw);
- if (err) {
- err = -EIO;
- goto err_init_hw;
- }
-
- /* hardware has been reset, we need to reload some things */
- atl2_set_multi(netdev);
- init_ring_ptrs(adapter);
-
- atl2_restore_vlan(adapter);
-
- if (atl2_configure(adapter)) {
- err = -EIO;
- goto err_config;
- }
-
- err = atl2_request_irq(adapter);
- if (err)
- goto err_req_irq;
-
- clear_bit(__ATL2_DOWN, &adapter->flags);
-
- mod_timer(&adapter->watchdog_timer, round_jiffies(jiffies + 4*HZ));
-
- val = ATL2_READ_REG(&adapter->hw, REG_MASTER_CTRL);
- ATL2_WRITE_REG(&adapter->hw, REG_MASTER_CTRL,
- val | MASTER_CTRL_MANUAL_INT);
-
- atl2_irq_enable(adapter);
-
- return 0;
-
-err_init_hw:
-err_req_irq:
-err_config:
- atl2_free_ring_resources(adapter);
- atl2_reset_hw(&adapter->hw);
-
- return err;
-}
-
-static void atl2_down(struct atl2_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
-
- /* signal that we're down so the interrupt handler does not
- * reschedule our watchdog timer */
- set_bit(__ATL2_DOWN, &adapter->flags);
-
- netif_tx_disable(netdev);
-
- /* reset MAC to disable all RX/TX */
- atl2_reset_hw(&adapter->hw);
- msleep(1);
-
- atl2_irq_disable(adapter);
-
- del_timer_sync(&adapter->watchdog_timer);
- del_timer_sync(&adapter->phy_config_timer);
- clear_bit(0, &adapter->cfg_phy);
-
- netif_carrier_off(netdev);
- adapter->link_speed = SPEED_0;
- adapter->link_duplex = -1;
-}
-
-static void atl2_free_irq(struct atl2_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
-
- free_irq(adapter->pdev->irq, netdev);
-
-#ifdef CONFIG_PCI_MSI
- if (adapter->have_msi)
- pci_disable_msi(adapter->pdev);
-#endif
-}
-
-/*
- * atl2_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 atl2_close(struct net_device *netdev)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
-
- WARN_ON(test_bit(__ATL2_RESETTING, &adapter->flags));
-
- atl2_down(adapter);
- atl2_free_irq(adapter);
- atl2_free_ring_resources(adapter);
-
- return 0;
-}
-
-static inline int TxsFreeUnit(struct atl2_adapter *adapter)
-{
- u32 txs_write_ptr = (u32) atomic_read(&adapter->txs_write_ptr);
-
- return (adapter->txs_next_clear >= txs_write_ptr) ?
- (int) (adapter->txs_ring_size - adapter->txs_next_clear +
- txs_write_ptr - 1) :
- (int) (txs_write_ptr - adapter->txs_next_clear - 1);
-}
-
-static inline int TxdFreeBytes(struct atl2_adapter *adapter)
-{
- u32 txd_read_ptr = (u32)atomic_read(&adapter->txd_read_ptr);
-
- return (adapter->txd_write_ptr >= txd_read_ptr) ?
- (int) (adapter->txd_ring_size - adapter->txd_write_ptr +
- txd_read_ptr - 1) :
- (int) (txd_read_ptr - adapter->txd_write_ptr - 1);
-}
-
-static netdev_tx_t atl2_xmit_frame(struct sk_buff *skb,
- struct net_device *netdev)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- struct tx_pkt_header *txph;
- u32 offset, copy_len;
- int txs_unused;
- int txbuf_unused;
-
- if (test_bit(__ATL2_DOWN, &adapter->flags)) {
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
- }
-
- if (unlikely(skb->len <= 0)) {
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
- }
-
- txs_unused = TxsFreeUnit(adapter);
- txbuf_unused = TxdFreeBytes(adapter);
-
- if (skb->len + sizeof(struct tx_pkt_header) + 4 > txbuf_unused ||
- txs_unused < 1) {
- /* not enough resources */
- netif_stop_queue(netdev);
- return NETDEV_TX_BUSY;
- }
-
- offset = adapter->txd_write_ptr;
-
- txph = (struct tx_pkt_header *) (((u8 *)adapter->txd_ring) + offset);
-
- *(u32 *)txph = 0;
- txph->pkt_size = skb->len;
-
- offset += 4;
- if (offset >= adapter->txd_ring_size)
- offset -= adapter->txd_ring_size;
- copy_len = adapter->txd_ring_size - offset;
- if (copy_len >= skb->len) {
- memcpy(((u8 *)adapter->txd_ring) + offset, skb->data, skb->len);
- offset += ((u32)(skb->len + 3) & ~3);
- } else {
- memcpy(((u8 *)adapter->txd_ring)+offset, skb->data, copy_len);
- memcpy((u8 *)adapter->txd_ring, skb->data+copy_len,
- skb->len-copy_len);
- offset = ((u32)(skb->len-copy_len + 3) & ~3);
- }
-#ifdef NETIF_F_HW_VLAN_TX
- if (vlan_tx_tag_present(skb)) {
- u16 vlan_tag = vlan_tx_tag_get(skb);
- vlan_tag = (vlan_tag << 4) |
- (vlan_tag >> 13) |
- ((vlan_tag >> 9) & 0x8);
- txph->ins_vlan = 1;
- txph->vlan = vlan_tag;
- }
-#endif
- if (offset >= adapter->txd_ring_size)
- offset -= adapter->txd_ring_size;
- adapter->txd_write_ptr = offset;
-
- /* clear txs before send */
- adapter->txs_ring[adapter->txs_next_clear].update = 0;
- if (++adapter->txs_next_clear == adapter->txs_ring_size)
- adapter->txs_next_clear = 0;
-
- ATL2_WRITE_REGW(&adapter->hw, REG_MB_TXD_WR_IDX,
- (adapter->txd_write_ptr >> 2));
-
- mmiowb();
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
-}
-
-/*
- * atl2_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 atl2_change_mtu(struct net_device *netdev, int new_mtu)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- struct atl2_hw *hw = &adapter->hw;
-
- if ((new_mtu < 40) || (new_mtu > (ETH_DATA_LEN + VLAN_SIZE)))
- return -EINVAL;
-
- /* set MTU */
- if (hw->max_frame_size != new_mtu) {
- netdev->mtu = new_mtu;
- ATL2_WRITE_REG(hw, REG_MTU, new_mtu + ENET_HEADER_SIZE +
- VLAN_SIZE + ETHERNET_FCS_SIZE);
- }
-
- return 0;
-}
-
-/*
- * atl2_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 atl2_set_mac(struct net_device *netdev, void *p)
-{
- struct atl2_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);
-
- atl2_set_mac_addr(&adapter->hw);
-
- return 0;
-}
-
-/*
- * atl2_mii_ioctl -
- * @netdev:
- * @ifreq:
- * @cmd:
- */
-static int atl2_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- struct mii_ioctl_data *data = if_mii(ifr);
- unsigned long flags;
-
- switch (cmd) {
- case SIOCGMIIPHY:
- data->phy_id = 0;
- break;
- case SIOCGMIIREG:
- spin_lock_irqsave(&adapter->stats_lock, flags);
- if (atl2_read_phy_reg(&adapter->hw,
- data->reg_num & 0x1F, &data->val_out)) {
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
- return -EIO;
- }
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
- break;
- case SIOCSMIIREG:
- if (data->reg_num & ~(0x1F))
- return -EFAULT;
- spin_lock_irqsave(&adapter->stats_lock, flags);
- if (atl2_write_phy_reg(&adapter->hw, data->reg_num,
- data->val_in)) {
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
- return -EIO;
- }
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
- break;
- default:
- return -EOPNOTSUPP;
- }
- return 0;
-}
-
-/*
- * atl2_ioctl -
- * @netdev:
- * @ifreq:
- * @cmd:
- */
-static int atl2_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
- switch (cmd) {
- case SIOCGMIIPHY:
- case SIOCGMIIREG:
- case SIOCSMIIREG:
- return atl2_mii_ioctl(netdev, ifr, cmd);
-#ifdef ETHTOOL_OPS_COMPAT
- case SIOCETHTOOL:
- return ethtool_ioctl(ifr);
-#endif
- default:
- return -EOPNOTSUPP;
- }
-}
-
-/*
- * atl2_tx_timeout - Respond to a Tx Hang
- * @netdev: network interface device structure
- */
-static void atl2_tx_timeout(struct net_device *netdev)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
-
- /* Do the reset outside of interrupt context */
- schedule_work(&adapter->reset_task);
-}
-
-/*
- * atl2_watchdog - Timer Call-back
- * @data: pointer to netdev cast into an unsigned long
- */
-static void atl2_watchdog(unsigned long data)
-{
- struct atl2_adapter *adapter = (struct atl2_adapter *) data;
-
- if (!test_bit(__ATL2_DOWN, &adapter->flags)) {
- u32 drop_rxd, drop_rxs;
- unsigned long flags;
-
- spin_lock_irqsave(&adapter->stats_lock, flags);
- drop_rxd = ATL2_READ_REG(&adapter->hw, REG_STS_RXD_OV);
- drop_rxs = ATL2_READ_REG(&adapter->hw, REG_STS_RXS_OV);
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
-
- adapter->netdev->stats.rx_over_errors += drop_rxd + drop_rxs;
-
- /* Reset the timer */
- mod_timer(&adapter->watchdog_timer,
- round_jiffies(jiffies + 4 * HZ));
- }
-}
-
-/*
- * atl2_phy_config - Timer Call-back
- * @data: pointer to netdev cast into an unsigned long
- */
-static void atl2_phy_config(unsigned long data)
-{
- struct atl2_adapter *adapter = (struct atl2_adapter *) data;
- struct atl2_hw *hw = &adapter->hw;
- unsigned long flags;
-
- spin_lock_irqsave(&adapter->stats_lock, flags);
- atl2_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg);
- atl2_write_phy_reg(hw, MII_BMCR, MII_CR_RESET | MII_CR_AUTO_NEG_EN |
- MII_CR_RESTART_AUTO_NEG);
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
- clear_bit(0, &adapter->cfg_phy);
-}
-
-static int atl2_up(struct atl2_adapter *adapter)
-{
- struct net_device *netdev = adapter->netdev;
- int err = 0;
- u32 val;
-
- /* hardware has been reset, we need to reload some things */
-
- err = atl2_init_hw(&adapter->hw);
- if (err) {
- err = -EIO;
- return err;
- }
-
- atl2_set_multi(netdev);
- init_ring_ptrs(adapter);
-
- atl2_restore_vlan(adapter);
-
- if (atl2_configure(adapter)) {
- err = -EIO;
- goto err_up;
- }
-
- clear_bit(__ATL2_DOWN, &adapter->flags);
-
- val = ATL2_READ_REG(&adapter->hw, REG_MASTER_CTRL);
- ATL2_WRITE_REG(&adapter->hw, REG_MASTER_CTRL, val |
- MASTER_CTRL_MANUAL_INT);
-
- atl2_irq_enable(adapter);
-
-err_up:
- return err;
-}
-
-static void atl2_reinit_locked(struct atl2_adapter *adapter)
-{
- WARN_ON(in_interrupt());
- while (test_and_set_bit(__ATL2_RESETTING, &adapter->flags))
- msleep(1);
- atl2_down(adapter);
- atl2_up(adapter);
- clear_bit(__ATL2_RESETTING, &adapter->flags);
-}
-
-static void atl2_reset_task(struct work_struct *work)
-{
- struct atl2_adapter *adapter;
- adapter = container_of(work, struct atl2_adapter, reset_task);
-
- atl2_reinit_locked(adapter);
-}
-
-static void atl2_setup_mac_ctrl(struct atl2_adapter *adapter)
-{
- u32 value;
- struct atl2_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
-
- /* Config MAC CTRL Register */
- value = MAC_CTRL_TX_EN | MAC_CTRL_RX_EN | MAC_CTRL_MACLP_CLK_PHY;
-
- /* duplex */
- if (FULL_DUPLEX == adapter->link_duplex)
- value |= MAC_CTRL_DUPLX;
-
- /* flow control */
- value |= (MAC_CTRL_TX_FLOW | MAC_CTRL_RX_FLOW);
-
- /* PAD & CRC */
- value |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
-
- /* preamble length */
- value |= (((u32)adapter->hw.preamble_len & MAC_CTRL_PRMLEN_MASK) <<
- MAC_CTRL_PRMLEN_SHIFT);
-
- /* vlan */
- __atl2_vlan_mode(netdev->features, &value);
-
- /* filter mode */
- value |= MAC_CTRL_BC_EN;
- if (netdev->flags & IFF_PROMISC)
- value |= MAC_CTRL_PROMIS_EN;
- else if (netdev->flags & IFF_ALLMULTI)
- value |= MAC_CTRL_MC_ALL_EN;
-
- /* half retry buffer */
- value |= (((u32)(adapter->hw.retry_buf &
- MAC_CTRL_HALF_LEFT_BUF_MASK)) << MAC_CTRL_HALF_LEFT_BUF_SHIFT);
-
- ATL2_WRITE_REG(hw, REG_MAC_CTRL, value);
-}
-
-static int atl2_check_link(struct atl2_adapter *adapter)
-{
- struct atl2_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- int ret_val;
- u16 speed, duplex, phy_data;
- int reconfig = 0;
-
- /* MII_BMSR must read twise */
- atl2_read_phy_reg(hw, MII_BMSR, &phy_data);
- atl2_read_phy_reg(hw, MII_BMSR, &phy_data);
- if (!(phy_data&BMSR_LSTATUS)) { /* link down */
- if (netif_carrier_ok(netdev)) { /* old link state: Up */
- u32 value;
- /* disable rx */
- value = ATL2_READ_REG(hw, REG_MAC_CTRL);
- value &= ~MAC_CTRL_RX_EN;
- ATL2_WRITE_REG(hw, REG_MAC_CTRL, value);
- adapter->link_speed = SPEED_0;
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
- }
- return 0;
- }
-
- /* Link Up */
- ret_val = atl2_get_speed_and_duplex(hw, &speed, &duplex);
- if (ret_val)
- return ret_val;
- switch (hw->MediaType) {
- case MEDIA_TYPE_100M_FULL:
- if (speed != SPEED_100 || duplex != FULL_DUPLEX)
- reconfig = 1;
- break;
- case MEDIA_TYPE_100M_HALF:
- if (speed != SPEED_100 || duplex != HALF_DUPLEX)
- reconfig = 1;
- break;
- case MEDIA_TYPE_10M_FULL:
- if (speed != SPEED_10 || duplex != FULL_DUPLEX)
- reconfig = 1;
- break;
- case MEDIA_TYPE_10M_HALF:
- if (speed != SPEED_10 || duplex != HALF_DUPLEX)
- reconfig = 1;
- break;
- }
- /* link result is our setting */
- if (reconfig == 0) {
- if (adapter->link_speed != speed ||
- adapter->link_duplex != duplex) {
- adapter->link_speed = speed;
- adapter->link_duplex = duplex;
- atl2_setup_mac_ctrl(adapter);
- printk(KERN_INFO "%s: %s NIC Link is Up<%d Mbps %s>\n",
- atl2_driver_name, netdev->name,
- adapter->link_speed,
- adapter->link_duplex == FULL_DUPLEX ?
- "Full Duplex" : "Half Duplex");
- }
-
- if (!netif_carrier_ok(netdev)) { /* Link down -> Up */
- netif_carrier_on(netdev);
- netif_wake_queue(netdev);
- }
- return 0;
- }
-
- /* change original link status */
- if (netif_carrier_ok(netdev)) {
- u32 value;
- /* disable rx */
- value = ATL2_READ_REG(hw, REG_MAC_CTRL);
- value &= ~MAC_CTRL_RX_EN;
- ATL2_WRITE_REG(hw, REG_MAC_CTRL, value);
-
- adapter->link_speed = SPEED_0;
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
- }
-
- /* auto-neg, insert timer to re-config phy
- * (if interval smaller than 5 seconds, something strange) */
- if (!test_bit(__ATL2_DOWN, &adapter->flags)) {
- if (!test_and_set_bit(0, &adapter->cfg_phy))
- mod_timer(&adapter->phy_config_timer,
- round_jiffies(jiffies + 5 * HZ));
- }
-
- return 0;
-}
-
-/*
- * atl2_link_chg_task - deal with link change event Out of interrupt context
- * @netdev: network interface device structure
- */
-static void atl2_link_chg_task(struct work_struct *work)
-{
- struct atl2_adapter *adapter;
- unsigned long flags;
-
- adapter = container_of(work, struct atl2_adapter, link_chg_task);
-
- spin_lock_irqsave(&adapter->stats_lock, flags);
- atl2_check_link(adapter);
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
-}
-
-static void atl2_setup_pcicmd(struct pci_dev *pdev)
-{
- u16 cmd;
-
- pci_read_config_word(pdev, PCI_COMMAND, &cmd);
-
- if (cmd & PCI_COMMAND_INTX_DISABLE)
- cmd &= ~PCI_COMMAND_INTX_DISABLE;
- if (cmd & PCI_COMMAND_IO)
- cmd &= ~PCI_COMMAND_IO;
- if (0 == (cmd & PCI_COMMAND_MEMORY))
- cmd |= PCI_COMMAND_MEMORY;
- if (0 == (cmd & PCI_COMMAND_MASTER))
- cmd |= PCI_COMMAND_MASTER;
- pci_write_config_word(pdev, PCI_COMMAND, cmd);
-
- /*
- * some motherboards BIOS(PXE/EFI) driver may set PME
- * while they transfer control to OS (Windows/Linux)
- * so we should clear this bit before NIC work normally
- */
- pci_write_config_dword(pdev, REG_PM_CTRLSTAT, 0);
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void atl2_poll_controller(struct net_device *netdev)
-{
- disable_irq(netdev->irq);
- atl2_intr(netdev->irq, netdev);
- enable_irq(netdev->irq);
-}
-#endif
-
-
-static const struct net_device_ops atl2_netdev_ops = {
- .ndo_open = atl2_open,
- .ndo_stop = atl2_close,
- .ndo_start_xmit = atl2_xmit_frame,
- .ndo_set_multicast_list = atl2_set_multi,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_set_mac_address = atl2_set_mac,
- .ndo_change_mtu = atl2_change_mtu,
- .ndo_fix_features = atl2_fix_features,
- .ndo_set_features = atl2_set_features,
- .ndo_do_ioctl = atl2_ioctl,
- .ndo_tx_timeout = atl2_tx_timeout,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = atl2_poll_controller,
-#endif
-};
-
-/*
- * atl2_probe - Device Initialization Routine
- * @pdev: PCI device information struct
- * @ent: entry in atl2_pci_tbl
- *
- * Returns 0 on success, negative on failure
- *
- * atl2_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 atl2_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct net_device *netdev;
- struct atl2_adapter *adapter;
- static int cards_found;
- unsigned long mmio_start;
- int mmio_len;
- int err;
-
- cards_found = 0;
-
- err = pci_enable_device(pdev);
- if (err)
- return err;
-
- /*
- * atl2 is a shared-high-32-bit device, so we're stuck with 32-bit DMA
- * until the kernel has the proper infrastructure to support 64-bit DMA
- * on these devices.
- */
- if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
- pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
- printk(KERN_ERR "atl2: No usable DMA configuration, aborting\n");
- goto err_dma;
- }
-
- /* Mark all PCI regions associated with PCI device
- * pdev as being reserved by owner atl2_driver_name */
- err = pci_request_regions(pdev, atl2_driver_name);
- if (err)
- goto err_pci_reg;
-
- /* Enables bus-mastering on the device and calls
- * pcibios_set_master to do the needed arch specific settings */
- pci_set_master(pdev);
-
- err = -ENOMEM;
- netdev = alloc_etherdev(sizeof(struct atl2_adapter));
- if (!netdev)
- goto err_alloc_etherdev;
-
- SET_NETDEV_DEV(netdev, &pdev->dev);
-
- pci_set_drvdata(pdev, netdev);
- adapter = netdev_priv(netdev);
- adapter->netdev = netdev;
- adapter->pdev = pdev;
- adapter->hw.back = adapter;
-
- mmio_start = pci_resource_start(pdev, 0x0);
- mmio_len = pci_resource_len(pdev, 0x0);
-
- adapter->hw.mem_rang = (u32)mmio_len;
- adapter->hw.hw_addr = ioremap(mmio_start, mmio_len);
- if (!adapter->hw.hw_addr) {
- err = -EIO;
- goto err_ioremap;
- }
-
- atl2_setup_pcicmd(pdev);
-
- netdev->netdev_ops = &atl2_netdev_ops;
- atl2_set_ethtool_ops(netdev);
- netdev->watchdog_timeo = 5 * HZ;
- strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
-
- netdev->mem_start = mmio_start;
- netdev->mem_end = mmio_start + mmio_len;
- adapter->bd_number = cards_found;
- adapter->pci_using_64 = false;
-
- /* setup the private structure */
- err = atl2_sw_init(adapter);
- if (err)
- goto err_sw_init;
-
- err = -EIO;
-
- netdev->hw_features = NETIF_F_SG | NETIF_F_HW_VLAN_RX;
- netdev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX);
-
- /* Init PHY as early as possible due to power saving issue */
- atl2_phy_init(&adapter->hw);
-
- /* reset the controller to
- * put the device in a known good starting state */
-
- if (atl2_reset_hw(&adapter->hw)) {
- err = -EIO;
- goto err_reset;
- }
-
- /* copy the MAC address out of the EEPROM */
- atl2_read_mac_addr(&adapter->hw);
- memcpy(netdev->dev_addr, adapter->hw.mac_addr, netdev->addr_len);
-/* FIXME: do we still need this? */
-#ifdef ETHTOOL_GPERMADDR
- memcpy(netdev->perm_addr, adapter->hw.mac_addr, netdev->addr_len);
-
- if (!is_valid_ether_addr(netdev->perm_addr)) {
-#else
- if (!is_valid_ether_addr(netdev->dev_addr)) {
-#endif
- err = -EIO;
- goto err_eeprom;
- }
-
- atl2_check_options(adapter);
-
- init_timer(&adapter->watchdog_timer);
- adapter->watchdog_timer.function = atl2_watchdog;
- adapter->watchdog_timer.data = (unsigned long) adapter;
-
- init_timer(&adapter->phy_config_timer);
- adapter->phy_config_timer.function = atl2_phy_config;
- adapter->phy_config_timer.data = (unsigned long) adapter;
-
- INIT_WORK(&adapter->reset_task, atl2_reset_task);
- INIT_WORK(&adapter->link_chg_task, atl2_link_chg_task);
-
- strcpy(netdev->name, "eth%d"); /* ?? */
- err = register_netdev(netdev);
- if (err)
- goto err_register;
-
- /* assume we have no link for now */
- netif_carrier_off(netdev);
- netif_stop_queue(netdev);
-
- cards_found++;
-
- return 0;
-
-err_reset:
-err_register:
-err_sw_init:
-err_eeprom:
- iounmap(adapter->hw.hw_addr);
-err_ioremap:
- free_netdev(netdev);
-err_alloc_etherdev:
- pci_release_regions(pdev);
-err_pci_reg:
-err_dma:
- pci_disable_device(pdev);
- return err;
-}
-
-/*
- * atl2_remove - Device Removal Routine
- * @pdev: PCI device information struct
- *
- * atl2_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.
- */
-/* FIXME: write the original MAC address back in case it was changed from a
- * BIOS-set value, as in atl1 -- CHS */
-static void __devexit atl2_remove(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct atl2_adapter *adapter = netdev_priv(netdev);
-
- /* flush_scheduled work may reschedule our watchdog task, so
- * explicitly disable watchdog tasks from being rescheduled */
- set_bit(__ATL2_DOWN, &adapter->flags);
-
- del_timer_sync(&adapter->watchdog_timer);
- del_timer_sync(&adapter->phy_config_timer);
- cancel_work_sync(&adapter->reset_task);
- cancel_work_sync(&adapter->link_chg_task);
-
- unregister_netdev(netdev);
-
- atl2_force_ps(&adapter->hw);
-
- iounmap(adapter->hw.hw_addr);
- pci_release_regions(pdev);
-
- free_netdev(netdev);
-
- pci_disable_device(pdev);
-}
-
-static int atl2_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct atl2_adapter *adapter = netdev_priv(netdev);
- struct atl2_hw *hw = &adapter->hw;
- u16 speed, duplex;
- u32 ctrl = 0;
- u32 wufc = adapter->wol;
-
-#ifdef CONFIG_PM
- int retval = 0;
-#endif
-
- netif_device_detach(netdev);
-
- if (netif_running(netdev)) {
- WARN_ON(test_bit(__ATL2_RESETTING, &adapter->flags));
- atl2_down(adapter);
- }
-
-#ifdef CONFIG_PM
- retval = pci_save_state(pdev);
- if (retval)
- return retval;
-#endif
-
- atl2_read_phy_reg(hw, MII_BMSR, (u16 *)&ctrl);
- atl2_read_phy_reg(hw, MII_BMSR, (u16 *)&ctrl);
- if (ctrl & BMSR_LSTATUS)
- wufc &= ~ATLX_WUFC_LNKC;
-
- if (0 != (ctrl & BMSR_LSTATUS) && 0 != wufc) {
- u32 ret_val;
- /* get current link speed & duplex */
- ret_val = atl2_get_speed_and_duplex(hw, &speed, &duplex);
- if (ret_val) {
- printk(KERN_DEBUG
- "%s: get speed&duplex error while suspend\n",
- atl2_driver_name);
- goto wol_dis;
- }
-
- ctrl = 0;
-
- /* turn on magic packet wol */
- if (wufc & ATLX_WUFC_MAG)
- ctrl |= (WOL_MAGIC_EN | WOL_MAGIC_PME_EN);
-
- /* ignore Link Chg event when Link is up */
- ATL2_WRITE_REG(hw, REG_WOL_CTRL, ctrl);
-
- /* Config MAC CTRL Register */
- ctrl = MAC_CTRL_RX_EN | MAC_CTRL_MACLP_CLK_PHY;
- if (FULL_DUPLEX == adapter->link_duplex)
- ctrl |= MAC_CTRL_DUPLX;
- ctrl |= (MAC_CTRL_ADD_CRC | MAC_CTRL_PAD);
- ctrl |= (((u32)adapter->hw.preamble_len &
- MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
- ctrl |= (((u32)(adapter->hw.retry_buf &
- MAC_CTRL_HALF_LEFT_BUF_MASK)) <<
- MAC_CTRL_HALF_LEFT_BUF_SHIFT);
- if (wufc & ATLX_WUFC_MAG) {
- /* magic packet maybe Broadcast&multicast&Unicast */
- ctrl |= MAC_CTRL_BC_EN;
- }
-
- ATL2_WRITE_REG(hw, REG_MAC_CTRL, ctrl);
-
- /* pcie patch */
- ctrl = ATL2_READ_REG(hw, REG_PCIE_PHYMISC);
- ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
- ATL2_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl);
- ctrl = ATL2_READ_REG(hw, REG_PCIE_DLL_TX_CTRL1);
- ctrl |= PCIE_DLL_TX_CTRL1_SEL_NOR_CLK;
- ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, ctrl);
-
- pci_enable_wake(pdev, pci_choose_state(pdev, state), 1);
- goto suspend_exit;
- }
-
- if (0 == (ctrl&BMSR_LSTATUS) && 0 != (wufc&ATLX_WUFC_LNKC)) {
- /* link is down, so only LINK CHG WOL event enable */
- ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN);
- ATL2_WRITE_REG(hw, REG_WOL_CTRL, ctrl);
- ATL2_WRITE_REG(hw, REG_MAC_CTRL, 0);
-
- /* pcie patch */
- ctrl = ATL2_READ_REG(hw, REG_PCIE_PHYMISC);
- ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
- ATL2_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl);
- ctrl = ATL2_READ_REG(hw, REG_PCIE_DLL_TX_CTRL1);
- ctrl |= PCIE_DLL_TX_CTRL1_SEL_NOR_CLK;
- ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, ctrl);
-
- hw->phy_configured = false; /* re-init PHY when resume */
-
- pci_enable_wake(pdev, pci_choose_state(pdev, state), 1);
-
- goto suspend_exit;
- }
-
-wol_dis:
- /* WOL disabled */
- ATL2_WRITE_REG(hw, REG_WOL_CTRL, 0);
-
- /* pcie patch */
- ctrl = ATL2_READ_REG(hw, REG_PCIE_PHYMISC);
- ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
- ATL2_WRITE_REG(hw, REG_PCIE_PHYMISC, ctrl);
- ctrl = ATL2_READ_REG(hw, REG_PCIE_DLL_TX_CTRL1);
- ctrl |= PCIE_DLL_TX_CTRL1_SEL_NOR_CLK;
- ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, ctrl);
-
- atl2_force_ps(hw);
- hw->phy_configured = false; /* re-init PHY when resume */
-
- pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
-
-suspend_exit:
- if (netif_running(netdev))
- atl2_free_irq(adapter);
-
- pci_disable_device(pdev);
-
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int atl2_resume(struct pci_dev *pdev)
-{
- struct net_device *netdev = pci_get_drvdata(pdev);
- struct atl2_adapter *adapter = netdev_priv(netdev);
- u32 err;
-
- pci_set_power_state(pdev, PCI_D0);
- pci_restore_state(pdev);
-
- err = pci_enable_device(pdev);
- if (err) {
- printk(KERN_ERR
- "atl2: Cannot enable PCI device from suspend\n");
- return err;
- }
-
- pci_set_master(pdev);
-
- ATL2_READ_REG(&adapter->hw, REG_WOL_CTRL); /* clear WOL status */
-
- pci_enable_wake(pdev, PCI_D3hot, 0);
- pci_enable_wake(pdev, PCI_D3cold, 0);
-
- ATL2_WRITE_REG(&adapter->hw, REG_WOL_CTRL, 0);
-
- if (netif_running(netdev)) {
- err = atl2_request_irq(adapter);
- if (err)
- return err;
- }
-
- atl2_reset_hw(&adapter->hw);
-
- if (netif_running(netdev))
- atl2_up(adapter);
-
- netif_device_attach(netdev);
-
- return 0;
-}
-#endif
-
-static void atl2_shutdown(struct pci_dev *pdev)
-{
- atl2_suspend(pdev, PMSG_SUSPEND);
-}
-
-static struct pci_driver atl2_driver = {
- .name = atl2_driver_name,
- .id_table = atl2_pci_tbl,
- .probe = atl2_probe,
- .remove = __devexit_p(atl2_remove),
- /* Power Management Hooks */
- .suspend = atl2_suspend,
-#ifdef CONFIG_PM
- .resume = atl2_resume,
-#endif
- .shutdown = atl2_shutdown,
-};
-
-/*
- * atl2_init_module - Driver Registration Routine
- *
- * atl2_init_module is the first routine called when the driver is
- * loaded. All it does is register with the PCI subsystem.
- */
-static int __init atl2_init_module(void)
-{
- printk(KERN_INFO "%s - version %s\n", atl2_driver_string,
- atl2_driver_version);
- printk(KERN_INFO "%s\n", atl2_copyright);
- return pci_register_driver(&atl2_driver);
-}
-module_init(atl2_init_module);
-
-/*
- * atl2_exit_module - Driver Exit Cleanup Routine
- *
- * atl2_exit_module is called just before the driver is removed
- * from memory.
- */
-static void __exit atl2_exit_module(void)
-{
- pci_unregister_driver(&atl2_driver);
-}
-module_exit(atl2_exit_module);
-
-static void atl2_read_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value)
-{
- struct atl2_adapter *adapter = hw->back;
- pci_read_config_word(adapter->pdev, reg, value);
-}
-
-static void atl2_write_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value)
-{
- struct atl2_adapter *adapter = hw->back;
- pci_write_config_word(adapter->pdev, reg, *value);
-}
-
-static int atl2_get_settings(struct net_device *netdev,
- struct ethtool_cmd *ecmd)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- struct atl2_hw *hw = &adapter->hw;
-
- ecmd->supported = (SUPPORTED_10baseT_Half |
- SUPPORTED_10baseT_Full |
- SUPPORTED_100baseT_Half |
- SUPPORTED_100baseT_Full |
- SUPPORTED_Autoneg |
- SUPPORTED_TP);
- 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) {
- ethtool_cmd_speed_set(ecmd, adapter->link_speed);
- if (adapter->link_duplex == FULL_DUPLEX)
- ecmd->duplex = DUPLEX_FULL;
- else
- ecmd->duplex = DUPLEX_HALF;
- } else {
- ethtool_cmd_speed_set(ecmd, -1);
- ecmd->duplex = -1;
- }
-
- ecmd->autoneg = AUTONEG_ENABLE;
- return 0;
-}
-
-static int atl2_set_settings(struct net_device *netdev,
- struct ethtool_cmd *ecmd)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- struct atl2_hw *hw = &adapter->hw;
-
- while (test_and_set_bit(__ATL2_RESETTING, &adapter->flags))
- msleep(1);
-
- if (ecmd->autoneg == AUTONEG_ENABLE) {
-#define MY_ADV_MASK (ADVERTISE_10_HALF | \
- ADVERTISE_10_FULL | \
- ADVERTISE_100_HALF| \
- ADVERTISE_100_FULL)
-
- if ((ecmd->advertising & MY_ADV_MASK) == MY_ADV_MASK) {
- hw->MediaType = MEDIA_TYPE_AUTO_SENSOR;
- hw->autoneg_advertised = MY_ADV_MASK;
- } else if ((ecmd->advertising & MY_ADV_MASK) ==
- ADVERTISE_100_FULL) {
- hw->MediaType = MEDIA_TYPE_100M_FULL;
- hw->autoneg_advertised = ADVERTISE_100_FULL;
- } else if ((ecmd->advertising & MY_ADV_MASK) ==
- ADVERTISE_100_HALF) {
- hw->MediaType = MEDIA_TYPE_100M_HALF;
- hw->autoneg_advertised = ADVERTISE_100_HALF;
- } else if ((ecmd->advertising & MY_ADV_MASK) ==
- ADVERTISE_10_FULL) {
- hw->MediaType = MEDIA_TYPE_10M_FULL;
- hw->autoneg_advertised = ADVERTISE_10_FULL;
- } else if ((ecmd->advertising & MY_ADV_MASK) ==
- ADVERTISE_10_HALF) {
- hw->MediaType = MEDIA_TYPE_10M_HALF;
- hw->autoneg_advertised = ADVERTISE_10_HALF;
- } else {
- clear_bit(__ATL2_RESETTING, &adapter->flags);
- return -EINVAL;
- }
- ecmd->advertising = hw->autoneg_advertised |
- ADVERTISED_TP | ADVERTISED_Autoneg;
- } else {
- clear_bit(__ATL2_RESETTING, &adapter->flags);
- return -EINVAL;
- }
-
- /* reset the link */
- if (netif_running(adapter->netdev)) {
- atl2_down(adapter);
- atl2_up(adapter);
- } else
- atl2_reset_hw(&adapter->hw);
-
- clear_bit(__ATL2_RESETTING, &adapter->flags);
- return 0;
-}
-
-static u32 atl2_get_msglevel(struct net_device *netdev)
-{
- return 0;
-}
-
-/*
- * It's sane for this to be empty, but we might want to take advantage of this.
- */
-static void atl2_set_msglevel(struct net_device *netdev, u32 data)
-{
-}
-
-static int atl2_get_regs_len(struct net_device *netdev)
-{
-#define ATL2_REGS_LEN 42
- return sizeof(u32) * ATL2_REGS_LEN;
-}
-
-static void atl2_get_regs(struct net_device *netdev,
- struct ethtool_regs *regs, void *p)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- struct atl2_hw *hw = &adapter->hw;
- u32 *regs_buff = p;
- u16 phy_data;
-
- memset(p, 0, sizeof(u32) * ATL2_REGS_LEN);
-
- regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
-
- regs_buff[0] = ATL2_READ_REG(hw, REG_VPD_CAP);
- regs_buff[1] = ATL2_READ_REG(hw, REG_SPI_FLASH_CTRL);
- regs_buff[2] = ATL2_READ_REG(hw, REG_SPI_FLASH_CONFIG);
- regs_buff[3] = ATL2_READ_REG(hw, REG_TWSI_CTRL);
- regs_buff[4] = ATL2_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL);
- regs_buff[5] = ATL2_READ_REG(hw, REG_MASTER_CTRL);
- regs_buff[6] = ATL2_READ_REG(hw, REG_MANUAL_TIMER_INIT);
- regs_buff[7] = ATL2_READ_REG(hw, REG_IRQ_MODU_TIMER_INIT);
- regs_buff[8] = ATL2_READ_REG(hw, REG_PHY_ENABLE);
- regs_buff[9] = ATL2_READ_REG(hw, REG_CMBDISDMA_TIMER);
- regs_buff[10] = ATL2_READ_REG(hw, REG_IDLE_STATUS);
- regs_buff[11] = ATL2_READ_REG(hw, REG_MDIO_CTRL);
- regs_buff[12] = ATL2_READ_REG(hw, REG_SERDES_LOCK);
- regs_buff[13] = ATL2_READ_REG(hw, REG_MAC_CTRL);
- regs_buff[14] = ATL2_READ_REG(hw, REG_MAC_IPG_IFG);
- regs_buff[15] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR);
- regs_buff[16] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR+4);
- regs_buff[17] = ATL2_READ_REG(hw, REG_RX_HASH_TABLE);
- regs_buff[18] = ATL2_READ_REG(hw, REG_RX_HASH_TABLE+4);
- regs_buff[19] = ATL2_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL);
- regs_buff[20] = ATL2_READ_REG(hw, REG_MTU);
- regs_buff[21] = ATL2_READ_REG(hw, REG_WOL_CTRL);
- regs_buff[22] = ATL2_READ_REG(hw, REG_SRAM_TXRAM_END);
- regs_buff[23] = ATL2_READ_REG(hw, REG_DESC_BASE_ADDR_HI);
- regs_buff[24] = ATL2_READ_REG(hw, REG_TXD_BASE_ADDR_LO);
- regs_buff[25] = ATL2_READ_REG(hw, REG_TXD_MEM_SIZE);
- regs_buff[26] = ATL2_READ_REG(hw, REG_TXS_BASE_ADDR_LO);
- regs_buff[27] = ATL2_READ_REG(hw, REG_TXS_MEM_SIZE);
- regs_buff[28] = ATL2_READ_REG(hw, REG_RXD_BASE_ADDR_LO);
- regs_buff[29] = ATL2_READ_REG(hw, REG_RXD_BUF_NUM);
- regs_buff[30] = ATL2_READ_REG(hw, REG_DMAR);
- regs_buff[31] = ATL2_READ_REG(hw, REG_TX_CUT_THRESH);
- regs_buff[32] = ATL2_READ_REG(hw, REG_DMAW);
- regs_buff[33] = ATL2_READ_REG(hw, REG_PAUSE_ON_TH);
- regs_buff[34] = ATL2_READ_REG(hw, REG_PAUSE_OFF_TH);
- regs_buff[35] = ATL2_READ_REG(hw, REG_MB_TXD_WR_IDX);
- regs_buff[36] = ATL2_READ_REG(hw, REG_MB_RXD_RD_IDX);
- regs_buff[38] = ATL2_READ_REG(hw, REG_ISR);
- regs_buff[39] = ATL2_READ_REG(hw, REG_IMR);
-
- atl2_read_phy_reg(hw, MII_BMCR, &phy_data);
- regs_buff[40] = (u32)phy_data;
- atl2_read_phy_reg(hw, MII_BMSR, &phy_data);
- regs_buff[41] = (u32)phy_data;
-}
-
-static int atl2_get_eeprom_len(struct net_device *netdev)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
-
- if (!atl2_check_eeprom_exist(&adapter->hw))
- return 512;
- else
- return 0;
-}
-
-static int atl2_get_eeprom(struct net_device *netdev,
- struct ethtool_eeprom *eeprom, u8 *bytes)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- struct atl2_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 (atl2_check_eeprom_exist(hw))
- return -EINVAL;
-
- eeprom->magic = hw->vendor_id | (hw->device_id << 16);
-
- first_dword = eeprom->offset >> 2;
- last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
-
- eeprom_buff = kmalloc(sizeof(u32) * (last_dword - first_dword + 1),
- GFP_KERNEL);
- if (!eeprom_buff)
- return -ENOMEM;
-
- for (i = first_dword; i < last_dword; i++) {
- if (!atl2_read_eeprom(hw, i*4, &(eeprom_buff[i-first_dword]))) {
- ret_val = -EIO;
- goto free;
- }
- }
-
- memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
- eeprom->len);
-free:
- kfree(eeprom_buff);
-
- return ret_val;
-}
-
-static int atl2_set_eeprom(struct net_device *netdev,
- struct ethtool_eeprom *eeprom, u8 *bytes)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- struct atl2_hw *hw = &adapter->hw;
- u32 *eeprom_buff;
- u32 *ptr;
- int max_len, first_dword, last_dword, ret_val = 0;
- int i;
-
- if (eeprom->len == 0)
- return -EOPNOTSUPP;
-
- if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
- return -EFAULT;
-
- max_len = 512;
-
- first_dword = eeprom->offset >> 2;
- last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
- eeprom_buff = kmalloc(max_len, GFP_KERNEL);
- if (!eeprom_buff)
- return -ENOMEM;
-
- ptr = 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 (!atl2_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 (!atl2_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 (!atl2_write_eeprom(hw, ((first_dword+i)*4), eeprom_buff[i])) {
- ret_val = -EIO;
- goto out;
- }
- }
- out:
- kfree(eeprom_buff);
- return ret_val;
-}
-
-static void atl2_get_drvinfo(struct net_device *netdev,
- struct ethtool_drvinfo *drvinfo)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
-
- strncpy(drvinfo->driver, atl2_driver_name, 32);
- strncpy(drvinfo->version, atl2_driver_version, 32);
- strncpy(drvinfo->fw_version, "L2", 32);
- strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
- drvinfo->n_stats = 0;
- drvinfo->testinfo_len = 0;
- drvinfo->regdump_len = atl2_get_regs_len(netdev);
- drvinfo->eedump_len = atl2_get_eeprom_len(netdev);
-}
-
-static void atl2_get_wol(struct net_device *netdev,
- struct ethtool_wolinfo *wol)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
-
- wol->supported = WAKE_MAGIC;
- wol->wolopts = 0;
-
- if (adapter->wol & ATLX_WUFC_EX)
- wol->wolopts |= WAKE_UCAST;
- if (adapter->wol & ATLX_WUFC_MC)
- wol->wolopts |= WAKE_MCAST;
- if (adapter->wol & ATLX_WUFC_BC)
- wol->wolopts |= WAKE_BCAST;
- if (adapter->wol & ATLX_WUFC_MAG)
- wol->wolopts |= WAKE_MAGIC;
- if (adapter->wol & ATLX_WUFC_LNKC)
- wol->wolopts |= WAKE_PHY;
-}
-
-static int atl2_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
-
- if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE))
- return -EOPNOTSUPP;
-
- if (wol->wolopts & (WAKE_UCAST | 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 |= ATLX_WUFC_MAG;
- if (wol->wolopts & WAKE_PHY)
- adapter->wol |= ATLX_WUFC_LNKC;
-
- return 0;
-}
-
-static int atl2_nway_reset(struct net_device *netdev)
-{
- struct atl2_adapter *adapter = netdev_priv(netdev);
- if (netif_running(netdev))
- atl2_reinit_locked(adapter);
- return 0;
-}
-
-static const struct ethtool_ops atl2_ethtool_ops = {
- .get_settings = atl2_get_settings,
- .set_settings = atl2_set_settings,
- .get_drvinfo = atl2_get_drvinfo,
- .get_regs_len = atl2_get_regs_len,
- .get_regs = atl2_get_regs,
- .get_wol = atl2_get_wol,
- .set_wol = atl2_set_wol,
- .get_msglevel = atl2_get_msglevel,
- .set_msglevel = atl2_set_msglevel,
- .nway_reset = atl2_nway_reset,
- .get_link = ethtool_op_get_link,
- .get_eeprom_len = atl2_get_eeprom_len,
- .get_eeprom = atl2_get_eeprom,
- .set_eeprom = atl2_set_eeprom,
-};
-
-static void atl2_set_ethtool_ops(struct net_device *netdev)
-{
- SET_ETHTOOL_OPS(netdev, &atl2_ethtool_ops);
-}
-
-#define LBYTESWAP(a) ((((a) & 0x00ff00ff) << 8) | \
- (((a) & 0xff00ff00) >> 8))
-#define LONGSWAP(a) ((LBYTESWAP(a) << 16) | (LBYTESWAP(a) >> 16))
-#define SHORTSWAP(a) (((a) << 8) | ((a) >> 8))
-
-/*
- * 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 s32 atl2_reset_hw(struct atl2_hw *hw)
-{
- u32 icr;
- u16 pci_cfg_cmd_word;
- int i;
-
- /* Workaround for PCI problem when BIOS sets MMRBC incorrectly. */
- atl2_read_pci_cfg(hw, PCI_REG_COMMAND, &pci_cfg_cmd_word);
- if ((pci_cfg_cmd_word &
- (CMD_IO_SPACE|CMD_MEMORY_SPACE|CMD_BUS_MASTER)) !=
- (CMD_IO_SPACE|CMD_MEMORY_SPACE|CMD_BUS_MASTER)) {
- pci_cfg_cmd_word |=
- (CMD_IO_SPACE|CMD_MEMORY_SPACE|CMD_BUS_MASTER);
- atl2_write_pci_cfg(hw, PCI_REG_COMMAND, &pci_cfg_cmd_word);
- }
-
- /* Clear Interrupt mask to stop board from generating
- * interrupts & Clear any pending interrupt events
- */
- /* FIXME */
- /* ATL2_WRITE_REG(hw, REG_IMR, 0); */
- /* ATL2_WRITE_REG(hw, REG_ISR, 0xffffffff); */
-
- /* 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.
- */
- ATL2_WRITE_REG(hw, REG_MASTER_CTRL, MASTER_CTRL_SOFT_RST);
- wmb();
- msleep(1); /* delay about 1ms */
-
- /* Wait at least 10ms for All module to be Idle */
- for (i = 0; i < 10; i++) {
- icr = ATL2_READ_REG(hw, REG_IDLE_STATUS);
- if (!icr)
- break;
- msleep(1); /* delay 1 ms */
- cpu_relax();
- }
-
- if (icr)
- return icr;
-
- return 0;
-}
-
-#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 struct atl2_spi_flash_dev flash_table[] =
-{
-/* MFR WRSR READ PROGRAM WREN WRDI RDSR RDID SECTOR_ERASE CHIP_ERASE */
-{"Atmel", 0x0, 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 bool atl2_spi_read(struct atl2_hw *hw, u32 addr, u32 *buf)
-{
- int i;
- u32 value;
-
- ATL2_WRITE_REG(hw, REG_SPI_DATA, 0);
- ATL2_WRITE_REG(hw, REG_SPI_ADDR, 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 |
- (0x1 & SPI_FLASH_CTRL_INS_MASK) << SPI_FLASH_CTRL_INS_SHIFT;
-
- ATL2_WRITE_REG(hw, REG_SPI_FLASH_CTRL, value);
-
- value |= SPI_FLASH_CTRL_START;
-
- ATL2_WRITE_REG(hw, REG_SPI_FLASH_CTRL, value);
-
- for (i = 0; i < 10; i++) {
- msleep(1);
- value = ATL2_READ_REG(hw, REG_SPI_FLASH_CTRL);
- if (!(value & SPI_FLASH_CTRL_START))
- break;
- }
-
- if (value & SPI_FLASH_CTRL_START)
- return false;
-
- *buf = ATL2_READ_REG(hw, REG_SPI_DATA);
-
- return true;
-}
-
-/*
- * get_permanent_address
- * return 0 if get valid mac address,
- */
-static int get_permanent_address(struct atl2_hw *hw)
-{
- u32 Addr[2];
- u32 i, Control;
- u16 Register;
- u8 EthAddr[NODE_ADDRESS_SIZE];
- bool KeyValid;
-
- if (is_valid_ether_addr(hw->perm_mac_addr))
- return 0;
-
- Addr[0] = 0;
- Addr[1] = 0;
-
- if (!atl2_check_eeprom_exist(hw)) { /* eeprom exists */
- Register = 0;
- KeyValid = false;
-
- /* Read out all EEPROM content */
- i = 0;
- while (1) {
- if (atl2_read_eeprom(hw, i + 0x100, &Control)) {
- if (KeyValid) {
- if (Register == REG_MAC_STA_ADDR)
- Addr[0] = Control;
- else if (Register ==
- (REG_MAC_STA_ADDR + 4))
- Addr[1] = Control;
- KeyValid = false;
- } else if ((Control & 0xff) == 0x5A) {
- KeyValid = true;
- Register = (u16) (Control >> 16);
- } else {
- /* assume data end while encount an invalid KEYWORD */
- break;
- }
- } else {
- break; /* read error */
- }
- i += 4;
- }
-
- *(u32 *) &EthAddr[2] = LONGSWAP(Addr[0]);
- *(u16 *) &EthAddr[0] = SHORTSWAP(*(u16 *) &Addr[1]);
-
- if (is_valid_ether_addr(EthAddr)) {
- memcpy(hw->perm_mac_addr, EthAddr, NODE_ADDRESS_SIZE);
- return 0;
- }
- return 1;
- }
-
- /* see if SPI flash exists? */
- Addr[0] = 0;
- Addr[1] = 0;
- Register = 0;
- KeyValid = false;
- i = 0;
- while (1) {
- if (atl2_spi_read(hw, i + 0x1f000, &Control)) {
- if (KeyValid) {
- if (Register == REG_MAC_STA_ADDR)
- Addr[0] = Control;
- else if (Register == (REG_MAC_STA_ADDR + 4))
- Addr[1] = Control;
- KeyValid = false;
- } else if ((Control & 0xff) == 0x5A) {
- KeyValid = true;
- Register = (u16) (Control >> 16);
- } else {
- break; /* data end */
- }
- } else {
- break; /* read error */
- }
- i += 4;
- }
-
- *(u32 *) &EthAddr[2] = LONGSWAP(Addr[0]);
- *(u16 *) &EthAddr[0] = SHORTSWAP(*(u16 *)&Addr[1]);
- if (is_valid_ether_addr(EthAddr)) {
- memcpy(hw->perm_mac_addr, EthAddr, NODE_ADDRESS_SIZE);
- return 0;
- }
- /* maybe MAC-address is from BIOS */
- Addr[0] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR);
- Addr[1] = ATL2_READ_REG(hw, REG_MAC_STA_ADDR + 4);
- *(u32 *) &EthAddr[2] = LONGSWAP(Addr[0]);
- *(u16 *) &EthAddr[0] = SHORTSWAP(*(u16 *) &Addr[1]);
-
- if (is_valid_ether_addr(EthAddr)) {
- memcpy(hw->perm_mac_addr, EthAddr, NODE_ADDRESS_SIZE);
- return 0;
- }
-
- return 1;
-}
-
-/*
- * Reads the adapter's MAC address from the EEPROM
- *
- * hw - Struct containing variables accessed by shared code
- */
-static s32 atl2_read_mac_addr(struct atl2_hw *hw)
-{
- u16 i;
-
- if (get_permanent_address(hw)) {
- /* for test */
- /* FIXME: shouldn't we use random_ether_addr() here? */
- 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;
- }
-
- for (i = 0; i < NODE_ADDRESS_SIZE; i++)
- hw->mac_addr[i] = hw->perm_mac_addr[i];
-
- return 0;
-}
-
-/*
- * 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
- *
- * atl2_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
- */
-static u32 atl2_hash_mc_addr(struct atl2_hw *hw, u8 *mc_addr)
-{
- u32 crc32, value;
- int i;
-
- value = 0;
- 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
- */
-static void atl2_hash_set(struct atl2_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 = ATL2_READ_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg);
-
- mta |= (1 << hash_bit);
-
- ATL2_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg, mta);
-}
-
-/*
- * atl2_init_pcie - init PCIE module
- */
-static void atl2_init_pcie(struct atl2_hw *hw)
-{
- u32 value;
- value = LTSSM_TEST_MODE_DEF;
- ATL2_WRITE_REG(hw, REG_LTSSM_TEST_MODE, value);
-
- value = PCIE_DLL_TX_CTRL1_DEF;
- ATL2_WRITE_REG(hw, REG_PCIE_DLL_TX_CTRL1, value);
-}
-
-static void atl2_init_flash_opcode(struct atl2_hw *hw)
-{
- if (hw->flash_vendor >= ARRAY_SIZE(flash_table))
- hw->flash_vendor = 0; /* ATMEL */
-
- /* Init OP table */
- ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_PROGRAM,
- flash_table[hw->flash_vendor].cmdPROGRAM);
- ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_SC_ERASE,
- flash_table[hw->flash_vendor].cmdSECTOR_ERASE);
- ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_CHIP_ERASE,
- flash_table[hw->flash_vendor].cmdCHIP_ERASE);
- ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_RDID,
- flash_table[hw->flash_vendor].cmdRDID);
- ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_WREN,
- flash_table[hw->flash_vendor].cmdWREN);
- ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_RDSR,
- flash_table[hw->flash_vendor].cmdRDSR);
- ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_WRSR,
- flash_table[hw->flash_vendor].cmdWRSR);
- ATL2_WRITE_REGB(hw, REG_SPI_FLASH_OP_READ,
- flash_table[hw->flash_vendor].cmdREAD);
-}
-
-/********************************************************************
-* 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.
-********************************************************************/
-static s32 atl2_init_hw(struct atl2_hw *hw)
-{
- u32 ret_val = 0;
-
- atl2_init_pcie(hw);
-
- /* Zero out the Multicast HASH table */
- /* clear the old settings from the multicast hash table */
- ATL2_WRITE_REG(hw, REG_RX_HASH_TABLE, 0);
- ATL2_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, 1, 0);
-
- atl2_init_flash_opcode(hw);
-
- ret_val = atl2_phy_init(hw);
-
- return ret_val;
-}
-
-/*
- * Detects the current speed and duplex settings of the hardware.
- *
- * hw - Struct containing variables accessed by shared code
- * speed - Speed of the connection
- * duplex - Duplex setting of the connection
- */
-static s32 atl2_get_speed_and_duplex(struct atl2_hw *hw, u16 *speed,
- u16 *duplex)
-{
- s32 ret_val;
- u16 phy_data;
-
- /* Read PHY Specific Status Register (17) */
- ret_val = atl2_read_phy_reg(hw, MII_ATLX_PSSR, &phy_data);
- if (ret_val)
- return ret_val;
-
- if (!(phy_data & MII_ATLX_PSSR_SPD_DPLX_RESOLVED))
- return ATLX_ERR_PHY_RES;
-
- switch (phy_data & MII_ATLX_PSSR_SPEED) {
- case MII_ATLX_PSSR_100MBS:
- *speed = SPEED_100;
- break;
- case MII_ATLX_PSSR_10MBS:
- *speed = SPEED_10;
- break;
- default:
- return ATLX_ERR_PHY_SPEED;
- break;
- }
-
- if (phy_data & MII_ATLX_PSSR_DPLX)
- *duplex = FULL_DUPLEX;
- else
- *duplex = HALF_DUPLEX;
-
- return 0;
-}
-
-/*
- * Reads the value from a PHY register
- * hw - Struct containing variables accessed by shared code
- * reg_addr - address of the PHY register to read
- */
-static s32 atl2_read_phy_reg(struct atl2_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;
- ATL2_WRITE_REG(hw, REG_MDIO_CTRL, val);
-
- wmb();
-
- for (i = 0; i < MDIO_WAIT_TIMES; i++) {
- udelay(2);
- val = ATL2_READ_REG(hw, REG_MDIO_CTRL);
- if (!(val & (MDIO_START | MDIO_BUSY)))
- break;
- wmb();
- }
- if (!(val & (MDIO_START | MDIO_BUSY))) {
- *phy_data = (u16)val;
- return 0;
- }
-
- return ATLX_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
- */
-static s32 atl2_write_phy_reg(struct atl2_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;
- ATL2_WRITE_REG(hw, REG_MDIO_CTRL, val);
-
- wmb();
-
- for (i = 0; i < MDIO_WAIT_TIMES; i++) {
- udelay(2);
- val = ATL2_READ_REG(hw, REG_MDIO_CTRL);
- if (!(val & (MDIO_START | MDIO_BUSY)))
- break;
-
- wmb();
- }
-
- if (!(val & (MDIO_START | MDIO_BUSY)))
- return 0;
-
- return ATLX_ERR_PHY;
-}
-
-/*
- * Configures PHY autoneg and flow control advertisement settings
- *
- * hw - Struct containing variables accessed by shared code
- */
-static s32 atl2_phy_setup_autoneg_adv(struct atl2_hw *hw)
-{
- s32 ret_val;
- s16 mii_autoneg_adv_reg;
-
- /* Read the MII Auto-Neg Advertisement Register (Address 4). */
- mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK;
-
- /* Need to parse autoneg_advertised and set up
- * the appropriate PHY registers. First we will parse for
- * autoneg_advertised software override. Since we can advertise
- * a plethora of combinations, we need to check each bit
- * individually.
- */
-
- /* First we clear all the 10/100 mb speed bits in the Auto-Neg
- * Advertisement Register (Address 4) and the 1000 mb speed bits in
- * the 1000Base-T Control Register (Address 9). */
- mii_autoneg_adv_reg &= ~MII_AR_SPEED_MASK;
-
- /* Need to parse MediaType and setup the
- * appropriate PHY registers. */
- switch (hw->MediaType) {
- case MEDIA_TYPE_AUTO_SENSOR:
- mii_autoneg_adv_reg |=
- (MII_AR_10T_HD_CAPS |
- MII_AR_10T_FD_CAPS |
- MII_AR_100TX_HD_CAPS|
- MII_AR_100TX_FD_CAPS);
- hw->autoneg_advertised =
- ADVERTISE_10_HALF |
- ADVERTISE_10_FULL |
- ADVERTISE_100_HALF|
- ADVERTISE_100_FULL;
- break;
- case MEDIA_TYPE_100M_FULL:
- mii_autoneg_adv_reg |= MII_AR_100TX_FD_CAPS;
- hw->autoneg_advertised = ADVERTISE_100_FULL;
- break;
- case MEDIA_TYPE_100M_HALF:
- mii_autoneg_adv_reg |= MII_AR_100TX_HD_CAPS;
- hw->autoneg_advertised = ADVERTISE_100_HALF;
- break;
- case MEDIA_TYPE_10M_FULL:
- mii_autoneg_adv_reg |= MII_AR_10T_FD_CAPS;
- hw->autoneg_advertised = ADVERTISE_10_FULL;
- break;
- default:
- mii_autoneg_adv_reg |= MII_AR_10T_HD_CAPS;
- hw->autoneg_advertised = ADVERTISE_10_HALF;
- break;
- }
-
- /* flow control fixed to enable all */
- mii_autoneg_adv_reg |= (MII_AR_ASM_DIR | MII_AR_PAUSE);
-
- hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg;
-
- ret_val = atl2_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg);
-
- if (ret_val)
- return ret_val;
-
- return 0;
-}
-
-/*
- * Resets the PHY and make all config validate
- *
- * hw - Struct containing variables accessed by shared code
- *
- * Sets bit 15 and 12 of the MII Control regiser (for F001 bug)
- */
-static s32 atl2_phy_commit(struct atl2_hw *hw)
-{
- s32 ret_val;
- u16 phy_data;
-
- phy_data = MII_CR_RESET | MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG;
- ret_val = atl2_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 = ATL2_READ_REG(hw, REG_MDIO_CTRL);
- if (!(val & (MDIO_START | MDIO_BUSY)))
- break;
- }
-
- if (0 != (val & (MDIO_START | MDIO_BUSY))) {
- printk(KERN_ERR "atl2: PCIe link down for at least 25ms !\n");
- return ret_val;
- }
- }
- return 0;
-}
-
-static s32 atl2_phy_init(struct atl2_hw *hw)
-{
- s32 ret_val;
- u16 phy_val;
-
- if (hw->phy_configured)
- return 0;
-
- /* Enable PHY */
- ATL2_WRITE_REGW(hw, REG_PHY_ENABLE, 1);
- ATL2_WRITE_FLUSH(hw);
- msleep(1);
-
- /* check if the PHY is in powersaving mode */
- atl2_write_phy_reg(hw, MII_DBG_ADDR, 0);
- atl2_read_phy_reg(hw, MII_DBG_DATA, &phy_val);
-
- /* 024E / 124E 0r 0274 / 1274 ? */
- if (phy_val & 0x1000) {
- phy_val &= ~0x1000;
- atl2_write_phy_reg(hw, MII_DBG_DATA, phy_val);
- }
-
- msleep(1);
-
- /*Enable PHY LinkChange Interrupt */
- ret_val = atl2_write_phy_reg(hw, 18, 0xC00);
- if (ret_val)
- return ret_val;
-
- /* setup AutoNeg parameters */
- ret_val = atl2_phy_setup_autoneg_adv(hw);
- if (ret_val)
- return ret_val;
-
- /* SW.Reset & En-Auto-Neg to restart Auto-Neg */
- ret_val = atl2_phy_commit(hw);
- if (ret_val)
- return ret_val;
-
- hw->phy_configured = true;
-
- return ret_val;
-}
-
-static void atl2_set_mac_addr(struct atl2_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]));
- ATL2_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 0, value);
- /* hight dword */
- value = (((u32)hw->mac_addr[0]) << 8) |
- (((u32)hw->mac_addr[1]));
- ATL2_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 1, value);
-}
-
-/*
- * check_eeprom_exist
- * return 0 if eeprom exist
- */
-static int atl2_check_eeprom_exist(struct atl2_hw *hw)
-{
- u32 value;
-
- value = ATL2_READ_REG(hw, REG_SPI_FLASH_CTRL);
- if (value & SPI_FLASH_CTRL_EN_VPD) {
- value &= ~SPI_FLASH_CTRL_EN_VPD;
- ATL2_WRITE_REG(hw, REG_SPI_FLASH_CTRL, value);
- }
- value = ATL2_READ_REGW(hw, REG_PCIE_CAP_LIST);
- return ((value & 0xFF00) == 0x6C00) ? 0 : 1;
-}
-
-/* FIXME: This doesn't look right. -- CHS */
-static bool atl2_write_eeprom(struct atl2_hw *hw, u32 offset, u32 value)
-{
- return true;
-}
-
-static bool atl2_read_eeprom(struct atl2_hw *hw, u32 Offset, u32 *pValue)
-{
- int i;
- u32 Control;
-
- if (Offset & 0x3)
- return false; /* address do not align */
-
- ATL2_WRITE_REG(hw, REG_VPD_DATA, 0);
- Control = (Offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT;
- ATL2_WRITE_REG(hw, REG_VPD_CAP, Control);
-
- for (i = 0; i < 10; i++) {
- msleep(2);
- Control = ATL2_READ_REG(hw, REG_VPD_CAP);
- if (Control & VPD_CAP_VPD_FLAG)
- break;
- }
-
- if (Control & VPD_CAP_VPD_FLAG) {
- *pValue = ATL2_READ_REG(hw, REG_VPD_DATA);
- return true;
- }
- return false; /* timeout */
-}
-
-static void atl2_force_ps(struct atl2_hw *hw)
-{
- u16 phy_val;
-
- atl2_write_phy_reg(hw, MII_DBG_ADDR, 0);
- atl2_read_phy_reg(hw, MII_DBG_DATA, &phy_val);
- atl2_write_phy_reg(hw, MII_DBG_DATA, phy_val | 0x1000);
-
- atl2_write_phy_reg(hw, MII_DBG_ADDR, 2);
- atl2_write_phy_reg(hw, MII_DBG_DATA, 0x3000);
- atl2_write_phy_reg(hw, MII_DBG_ADDR, 3);
- atl2_write_phy_reg(hw, MII_DBG_DATA, 0);
-}
-
-/* This is the only thing that needs to be changed to adjust the
- * maximum number of ports that the driver can manage.
- */
-#define ATL2_MAX_NIC 4
-
-#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 ATL2_PARAM_INIT {[0 ... ATL2_MAX_NIC] = OPTION_UNSET}
-#ifndef module_param_array
-/* Module Parameters are always initialized to -1, so that the driver
- * can tell the difference between no user specified value or the
- * user asking for the default value.
- * The true default values are loaded in when atl2_check_options is called.
- *
- * This is a GCC extension to ANSI C.
- * See the item "Labeled Elements in Initializers" in the section
- * "Extensions to the C Language Family" of the GCC documentation.
- */
-
-#define ATL2_PARAM(X, desc) \
- static const int __devinitdata X[ATL2_MAX_NIC + 1] = ATL2_PARAM_INIT; \
- MODULE_PARM(X, "1-" __MODULE_STRING(ATL2_MAX_NIC) "i"); \
- MODULE_PARM_DESC(X, desc);
-#else
-#define ATL2_PARAM(X, desc) \
- static int __devinitdata X[ATL2_MAX_NIC+1] = ATL2_PARAM_INIT; \
- static unsigned int num_##X; \
- module_param_array_named(X, X, int, &num_##X, 0); \
- MODULE_PARM_DESC(X, desc);
-#endif
-
-/*
- * Transmit Memory Size
- * Valid Range: 64-2048
- * Default Value: 128
- */
-#define ATL2_MIN_TX_MEMSIZE 4 /* 4KB */
-#define ATL2_MAX_TX_MEMSIZE 64 /* 64KB */
-#define ATL2_DEFAULT_TX_MEMSIZE 8 /* 8KB */
-ATL2_PARAM(TxMemSize, "Bytes of Transmit Memory");
-
-/*
- * Receive Memory Block Count
- * Valid Range: 16-512
- * Default Value: 128
- */
-#define ATL2_MIN_RXD_COUNT 16
-#define ATL2_MAX_RXD_COUNT 512
-#define ATL2_DEFAULT_RXD_COUNT 64
-ATL2_PARAM(RxMemBlock, "Number of receive memory block");
-
-/*
- * User Specified MediaType Override
- *
- * Valid Range: 0-5
- * - 0 - auto-negotiate at all supported speeds
- * - 1 - only link at 1000Mbps Full Duplex
- * - 2 - only link at 100Mbps Full Duplex
- * - 3 - only link at 100Mbps Half Duplex
- * - 4 - only link at 10Mbps Full Duplex
- * - 5 - only link at 10Mbps Half Duplex
- * Default Value: 0
- */
-ATL2_PARAM(MediaType, "MediaType Select");
-
-/*
- * Interrupt Moderate Timer in units of 2048 ns (~2 us)
- * Valid Range: 10-65535
- * Default Value: 45000(90ms)
- */
-#define INT_MOD_DEFAULT_CNT 100 /* 200us */
-#define INT_MOD_MAX_CNT 65000
-#define INT_MOD_MIN_CNT 50
-ATL2_PARAM(IntModTimer, "Interrupt Moderator Timer");
-
-/*
- * FlashVendor
- * Valid Range: 0-2
- * 0 - Atmel
- * 1 - SST
- * 2 - ST
- */
-ATL2_PARAM(FlashVendor, "SPI Flash Vendor");
-
-#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 atl2_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 atl2_opt_list { int i; char *str; } *p;
- } l;
- } arg;
-};
-
-static int __devinit atl2_validate_option(int *value, struct atl2_option *opt)
-{
- int i;
- struct atl2_opt_list *ent;
-
- if (*value == OPTION_UNSET) {
- *value = opt->def;
- return 0;
- }
-
- switch (opt->type) {
- case enable_option:
- switch (*value) {
- case OPTION_ENABLED:
- printk(KERN_INFO "%s Enabled\n", opt->name);
- return 0;
- break;
- case OPTION_DISABLED:
- printk(KERN_INFO "%s Disabled\n", opt->name);
- return 0;
- break;
- }
- break;
- case range_option:
- if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
- printk(KERN_INFO "%s set to %i\n", opt->name, *value);
- return 0;
- }
- break;
- case list_option:
- for (i = 0; i < opt->arg.l.nr; i++) {
- ent = &opt->arg.l.p[i];
- if (*value == ent->i) {
- if (ent->str[0] != '\0')
- printk(KERN_INFO "%s\n", ent->str);
- return 0;
- }
- }
- break;
- default:
- BUG();
- }
-
- printk(KERN_INFO "Invalid %s specified (%i) %s\n",
- opt->name, *value, opt->err);
- *value = opt->def;
- return -1;
-}
-
-/*
- * atl2_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.
- */
-static void __devinit atl2_check_options(struct atl2_adapter *adapter)
-{
- int val;
- struct atl2_option opt;
- int bd = adapter->bd_number;
- if (bd >= ATL2_MAX_NIC) {
- printk(KERN_NOTICE "Warning: no configuration for board #%i\n",
- bd);
- printk(KERN_NOTICE "Using defaults for all values\n");
-#ifndef module_param_array
- bd = ATL2_MAX_NIC;
-#endif
- }
-
- /* Bytes of Transmit Memory */
- opt.type = range_option;
- opt.name = "Bytes of Transmit Memory";
- opt.err = "using default of " __MODULE_STRING(ATL2_DEFAULT_TX_MEMSIZE);
- opt.def = ATL2_DEFAULT_TX_MEMSIZE;
- opt.arg.r.min = ATL2_MIN_TX_MEMSIZE;
- opt.arg.r.max = ATL2_MAX_TX_MEMSIZE;
-#ifdef module_param_array
- if (num_TxMemSize > bd) {
-#endif
- val = TxMemSize[bd];
- atl2_validate_option(&val, &opt);
- adapter->txd_ring_size = ((u32) val) * 1024;
-#ifdef module_param_array
- } else
- adapter->txd_ring_size = ((u32)opt.def) * 1024;
-#endif
- /* txs ring size: */
- adapter->txs_ring_size = adapter->txd_ring_size / 128;
- if (adapter->txs_ring_size > 160)
- adapter->txs_ring_size = 160;
-
- /* Receive Memory Block Count */
- opt.type = range_option;
- opt.name = "Number of receive memory block";
- opt.err = "using default of " __MODULE_STRING(ATL2_DEFAULT_RXD_COUNT);
- opt.def = ATL2_DEFAULT_RXD_COUNT;
- opt.arg.r.min = ATL2_MIN_RXD_COUNT;
- opt.arg.r.max = ATL2_MAX_RXD_COUNT;
-#ifdef module_param_array
- if (num_RxMemBlock > bd) {
-#endif
- val = RxMemBlock[bd];
- atl2_validate_option(&val, &opt);
- adapter->rxd_ring_size = (u32)val;
- /* FIXME */
- /* ((u16)val)&~1; */ /* even number */
-#ifdef module_param_array
- } else
- adapter->rxd_ring_size = (u32)opt.def;
-#endif
- /* init RXD Flow control value */
- adapter->hw.fc_rxd_hi = (adapter->rxd_ring_size / 8) * 7;
- adapter->hw.fc_rxd_lo = (ATL2_MIN_RXD_COUNT / 8) >
- (adapter->rxd_ring_size / 12) ? (ATL2_MIN_RXD_COUNT / 8) :
- (adapter->rxd_ring_size / 12);
-
- /* Interrupt Moderate Timer */
- opt.type = range_option;
- opt.name = "Interrupt Moderate Timer";
- opt.err = "using default of " __MODULE_STRING(INT_MOD_DEFAULT_CNT);
- opt.def = INT_MOD_DEFAULT_CNT;
- opt.arg.r.min = INT_MOD_MIN_CNT;
- opt.arg.r.max = INT_MOD_MAX_CNT;
-#ifdef module_param_array
- if (num_IntModTimer > bd) {
-#endif
- val = IntModTimer[bd];
- atl2_validate_option(&val, &opt);
- adapter->imt = (u16) val;
-#ifdef module_param_array
- } else
- adapter->imt = (u16)(opt.def);
-#endif
- /* Flash Vendor */
- opt.type = range_option;
- opt.name = "SPI Flash Vendor";
- opt.err = "using default of " __MODULE_STRING(FLASH_VENDOR_DEFAULT);
- opt.def = FLASH_VENDOR_DEFAULT;
- opt.arg.r.min = FLASH_VENDOR_MIN;
- opt.arg.r.max = FLASH_VENDOR_MAX;
-#ifdef module_param_array
- if (num_FlashVendor > bd) {
-#endif
- val = FlashVendor[bd];
- atl2_validate_option(&val, &opt);
- adapter->hw.flash_vendor = (u8) val;
-#ifdef module_param_array
- } else
- adapter->hw.flash_vendor = (u8)(opt.def);
-#endif
- /* MediaType */
- opt.type = range_option;
- opt.name = "Speed/Duplex Selection";
- opt.err = "using default of " __MODULE_STRING(MEDIA_TYPE_AUTO_SENSOR);
- opt.def = MEDIA_TYPE_AUTO_SENSOR;
- opt.arg.r.min = MEDIA_TYPE_AUTO_SENSOR;
- opt.arg.r.max = MEDIA_TYPE_10M_HALF;
-#ifdef module_param_array
- if (num_MediaType > bd) {
-#endif
- val = MediaType[bd];
- atl2_validate_option(&val, &opt);
- adapter->hw.MediaType = (u16) val;
-#ifdef module_param_array
- } else
- adapter->hw.MediaType = (u16)(opt.def);
-#endif
-}