struct e1000_rx_ring *rx_ring);
static void e1000_set_rx_mode(struct net_device *netdev);
static void e1000_update_phy_info(unsigned long data);
+static void e1000_update_phy_info_task(struct work_struct *work);
static void e1000_watchdog(unsigned long data);
static void e1000_82547_tx_fifo_stall(unsigned long data);
+static void e1000_82547_tx_fifo_stall_task(struct work_struct *work);
static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
struct net_device *netdev);
static struct net_device_stats * e1000_get_stats(struct net_device *netdev);
e1000_clean_all_rx_rings(adapter);
}
+void e1000_reinit_safe(struct e1000_adapter *adapter)
+{
+ while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
+ msleep(1);
+ rtnl_lock();
+ e1000_down(adapter);
+ e1000_up(adapter);
+ rtnl_unlock();
+ clear_bit(__E1000_RESETTING, &adapter->flags);
+}
+
void e1000_reinit_locked(struct e1000_adapter *adapter)
{
+ /* if rtnl_lock is not held the call path is bogus */
+ ASSERT_RTNL();
WARN_ON(in_interrupt());
while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
msleep(1);
#endif
};
+/**
+ * e1000_init_hw_struct - initialize members of hw struct
+ * @adapter: board private struct
+ * @hw: structure used by e1000_hw.c
+ *
+ * Factors out initialization of the e1000_hw struct to its own function
+ * that can be called very early at init (just after struct allocation).
+ * Fields are initialized based on PCI device information and
+ * OS network device settings (MTU size).
+ * Returns negative error codes if MAC type setup fails.
+ */
+static int e1000_init_hw_struct(struct e1000_adapter *adapter,
+ struct e1000_hw *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);
+
+ hw->max_frame_size = adapter->netdev->mtu +
+ ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
+ hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE;
+
+ /* identify the MAC */
+ if (e1000_set_mac_type(hw)) {
+ e_err(probe, "Unknown MAC Type\n");
+ return -EIO;
+ }
+
+ switch (hw->mac_type) {
+ default:
+ break;
+ case e1000_82541:
+ case e1000_82547:
+ case e1000_82541_rev_2:
+ case e1000_82547_rev_2:
+ hw->phy_init_script = 1;
+ break;
+ }
+
+ e1000_set_media_type(hw);
+ e1000_get_bus_info(hw);
+
+ hw->wait_autoneg_complete = false;
+ hw->tbi_compatibility_en = true;
+ hw->adaptive_ifs = true;
+
+ /* Copper options */
+
+ if (hw->media_type == e1000_media_type_copper) {
+ hw->mdix = AUTO_ALL_MODES;
+ hw->disable_polarity_correction = false;
+ hw->master_slave = E1000_MASTER_SLAVE;
+ }
+
+ return 0;
+}
+
/**
* e1000_probe - Device Initialization Routine
* @pdev: PCI device information struct
if (err)
return err;
- if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) &&
- !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
- pci_using_dac = 1;
- } else {
- err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- err = dma_set_coherent_mask(&pdev->dev,
- DMA_BIT_MASK(32));
- if (err) {
- pr_err("No usable DMA config, aborting\n");
- goto err_dma;
- }
- }
- pci_using_dac = 0;
- }
-
err = pci_request_selected_regions(pdev, bars, e1000_driver_name);
if (err)
goto err_pci_reg;
}
}
+ /* make ready for any if (hw->...) below */
+ err = e1000_init_hw_struct(adapter, hw);
+ if (err)
+ goto err_sw_init;
+
+ /*
+ * there is a workaround being applied below that limits
+ * 64-bit DMA addresses to 64-bit hardware. There are some
+ * 32-bit adapters that Tx hang when given 64-bit DMA addresses
+ */
+ pci_using_dac = 0;
+ if ((hw->bus_type == e1000_bus_type_pcix) &&
+ !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
+ /*
+ * according to DMA-API-HOWTO, coherent calls will always
+ * succeed if the set call did
+ */
+ dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
+ pci_using_dac = 1;
+ } else if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
+ dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+ } else {
+ pr_err("No usable DMA config, aborting\n");
+ goto err_dma;
+ }
+
netdev->netdev_ops = &e1000_netdev_ops;
e1000_set_ethtool_ops(netdev);
netdev->watchdog_timeo = 5 * HZ;
(hw->mac_type != e1000_82547))
netdev->features |= NETIF_F_TSO;
- if (pci_using_dac)
+ if (pci_using_dac) {
netdev->features |= NETIF_F_HIGHDMA;
+ netdev->vlan_features |= NETIF_F_HIGHDMA;
+ }
netdev->vlan_features |= NETIF_F_TSO;
netdev->vlan_features |= NETIF_F_HW_CSUM;
if (!is_valid_ether_addr(netdev->perm_addr))
e_err(probe, "Invalid MAC Address\n");
- e1000_get_bus_info(hw);
-
init_timer(&adapter->tx_fifo_stall_timer);
- adapter->tx_fifo_stall_timer.function = &e1000_82547_tx_fifo_stall;
+ adapter->tx_fifo_stall_timer.function = e1000_82547_tx_fifo_stall;
adapter->tx_fifo_stall_timer.data = (unsigned long)adapter;
init_timer(&adapter->watchdog_timer);
- adapter->watchdog_timer.function = &e1000_watchdog;
+ adapter->watchdog_timer.function = e1000_watchdog;
adapter->watchdog_timer.data = (unsigned long) adapter;
init_timer(&adapter->phy_info_timer);
- adapter->phy_info_timer.function = &e1000_update_phy_info;
+ adapter->phy_info_timer.function = e1000_update_phy_info;
adapter->phy_info_timer.data = (unsigned long)adapter;
+ INIT_WORK(&adapter->fifo_stall_task, e1000_82547_tx_fifo_stall_task);
INIT_WORK(&adapter->reset_task, e1000_reset_task);
+ INIT_WORK(&adapter->phy_info_task, e1000_update_phy_info_task);
e1000_check_options(adapter);
iounmap(hw->flash_address);
kfree(adapter->tx_ring);
kfree(adapter->rx_ring);
+err_dma:
err_sw_init:
iounmap(hw->hw_addr);
err_ioremap:
err_alloc_etherdev:
pci_release_selected_regions(pdev, bars);
err_pci_reg:
-err_dma:
pci_disable_device(pdev);
return err;
}
* @adapter: board private structure to initialize
*
* e1000_sw_init initializes the Adapter private data structure.
- * Fields are initialized based on PCI device information and
- * OS network device settings (MTU size).
+ * e1000_init_hw_struct MUST be called before this function
**/
static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
{
- struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
- 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->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
- hw->max_frame_size = netdev->mtu +
- ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
- hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE;
-
- /* identify the MAC */
-
- if (e1000_set_mac_type(hw)) {
- e_err(probe, "Unknown MAC Type\n");
- return -EIO;
- }
-
- switch (hw->mac_type) {
- default:
- break;
- case e1000_82541:
- case e1000_82547:
- case e1000_82541_rev_2:
- case e1000_82547_rev_2:
- hw->phy_init_script = 1;
- break;
- }
-
- e1000_set_media_type(hw);
-
- hw->wait_autoneg_complete = false;
- hw->tbi_compatibility_en = true;
- hw->adaptive_ifs = true;
-
- /* Copper options */
-
- if (hw->media_type == e1000_media_type_copper) {
- hw->mdix = AUTO_ALL_MODES;
- hw->disable_polarity_correction = false;
- hw->master_slave = E1000_MASTER_SLAVE;
- }
adapter->num_tx_queues = 1;
adapter->num_rx_queues = 1;
static void e1000_update_phy_info(unsigned long data)
{
struct e1000_adapter *adapter = (struct e1000_adapter *)data;
+ schedule_work(&adapter->phy_info_task);
+}
+
+static void e1000_update_phy_info_task(struct work_struct *work)
+{
+ struct e1000_adapter *adapter = container_of(work,
+ struct e1000_adapter,
+ phy_info_task);
struct e1000_hw *hw = &adapter->hw;
+
+ rtnl_lock();
e1000_phy_get_info(hw, &adapter->phy_info);
+ rtnl_unlock();
}
/**
* e1000_82547_tx_fifo_stall - Timer Call-back
* @data: pointer to adapter cast into an unsigned long
**/
-
static void e1000_82547_tx_fifo_stall(unsigned long data)
{
struct e1000_adapter *adapter = (struct e1000_adapter *)data;
+ schedule_work(&adapter->fifo_stall_task);
+}
+
+/**
+ * e1000_82547_tx_fifo_stall_task - task to complete work
+ * @work: work struct contained inside adapter struct
+ **/
+static void e1000_82547_tx_fifo_stall_task(struct work_struct *work)
+{
+ struct e1000_adapter *adapter = container_of(work,
+ struct e1000_adapter,
+ fifo_stall_task);
struct e1000_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
u32 tctl;
+ rtnl_lock();
if (atomic_read(&adapter->tx_fifo_stall)) {
if ((er32(TDT) == er32(TDH)) &&
(er32(TDFT) == er32(TDFH)) &&
mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1);
}
}
+ rtnl_unlock();
}
bool e1000_has_link(struct e1000_adapter *adapter)
}
}
- if (unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) {
+ if (unlikely(vlan_tx_tag_present(skb))) {
tx_flags |= E1000_TX_FLAGS_VLAN;
tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT);
}
struct e1000_adapter *adapter =
container_of(work, struct e1000_adapter, reset_task);
- e1000_reinit_locked(adapter);
+ e1000_reinit_safe(adapter);
}
/**
adapter->total_tx_packets += total_tx_packets;
netdev->stats.tx_bytes += total_tx_bytes;
netdev->stats.tx_packets += total_tx_packets;
- return (count < tx_ring->count);
+ return count < tx_ring->count;
}
/**
struct e1000_hw *hw = &adapter->hw;
u16 status = (u16)status_err;
u8 errors = (u8)(status_err >> 24);
- skb->ip_summed = CHECKSUM_NONE;
+
+ skb_checksum_none_assert(skb);
/* 82543 or newer only */
if (unlikely(hw->mac_type < e1000_82543)) return;
static void e1000_receive_skb(struct e1000_adapter *adapter, u8 status,
__le16 vlan, struct sk_buff *skb)
{
- if (unlikely(adapter->vlgrp && (status & E1000_RXD_STAT_VP))) {
- vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
- le16_to_cpu(vlan) &
- E1000_RXD_SPC_VLAN_MASK);
- } else {
- netif_receive_skb(skb);
- }
+ skb->protocol = eth_type_trans(skb, adapter->netdev);
+
+ if ((unlikely(adapter->vlgrp && (status & E1000_RXD_STAT_VP))))
+ vlan_gro_receive(&adapter->napi, adapter->vlgrp,
+ le16_to_cpu(vlan) & E1000_RXD_SPC_VLAN_MASK,
+ skb);
+ else
+ napi_gro_receive(&adapter->napi, skb);
}
/**
goto next_desc;
}
- skb->protocol = eth_type_trans(skb, netdev);
-
e1000_receive_skb(adapter, status, rx_desc->special, skb);
next_desc:
((u32)(rx_desc->errors) << 24),
le16_to_cpu(rx_desc->csum), skb);
- skb->protocol = eth_type_trans(skb, netdev);
-
e1000_receive_skb(adapter, status, rx_desc->special, skb);
next_desc:
if (adapter->vlgrp) {
u16 vid;
- for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
+ for (vid = 0; vid < VLAN_N_VID; vid++) {
if (!vlan_group_get_device(adapter->vlgrp, vid))
continue;
e1000_vlan_rx_add_vid(adapter->netdev, vid);
git://bbs.cooldavid.org / net-next-2.6.git / blobdiff