diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/e1000/e1000.h | 4 | ||||
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 83 |
2 files changed, 74 insertions, 13 deletions
diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h index 583b823f760c..19e317eaf5bc 100644 --- a/drivers/net/e1000/e1000.h +++ b/drivers/net/e1000/e1000.h @@ -340,6 +340,10 @@ struct e1000_adapter { bool quad_port_a; unsigned long flags; u32 eeprom_wol; + + /* for ioport free */ + int bars; + int need_ioport; }; enum e1000_state_t { diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 190352c6216e..ad6da7b67e55 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -859,6 +859,42 @@ static void e1000_dump_eeprom(struct e1000_adapter *adapter) } /** + * e1000_is_need_ioport - determine if an adapter needs ioport resources or not + * @pdev: PCI device information struct + * + * Return true if an adapter needs ioport resources + **/ +static int e1000_is_need_ioport(struct pci_dev *pdev) +{ + switch (pdev->device) { + case E1000_DEV_ID_82540EM: + case E1000_DEV_ID_82540EM_LOM: + case E1000_DEV_ID_82540EP: + case E1000_DEV_ID_82540EP_LOM: + case E1000_DEV_ID_82540EP_LP: + case E1000_DEV_ID_82541EI: + case E1000_DEV_ID_82541EI_MOBILE: + case E1000_DEV_ID_82541ER: + case E1000_DEV_ID_82541ER_LOM: + case E1000_DEV_ID_82541GI: + case E1000_DEV_ID_82541GI_LF: + case E1000_DEV_ID_82541GI_MOBILE: + case E1000_DEV_ID_82544EI_COPPER: + case E1000_DEV_ID_82544EI_FIBER: + case E1000_DEV_ID_82544GC_COPPER: + case E1000_DEV_ID_82544GC_LOM: + case E1000_DEV_ID_82545EM_COPPER: + case E1000_DEV_ID_82545EM_FIBER: + case E1000_DEV_ID_82546EB_COPPER: + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546EB_QUAD_COPPER: + return true; + default: + return false; + } +} + +/** * e1000_probe - Device Initialization Routine * @pdev: PCI device information struct * @ent: entry in e1000_pci_tbl @@ -869,7 +905,6 @@ static void e1000_dump_eeprom(struct e1000_adapter *adapter) * The OS initialization, configuring of the adapter private structure, * and a hardware reset occur. **/ - static int __devinit e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { @@ -882,9 +917,18 @@ static int __devinit e1000_probe(struct pci_dev *pdev, int i, err, pci_using_dac; u16 eeprom_data = 0; u16 eeprom_apme_mask = E1000_EEPROM_APME; + int bars, need_ioport; DECLARE_MAC_BUF(mac); - err = pci_enable_device(pdev); + /* do not allocate ioport bars when not needed */ + need_ioport = e1000_is_need_ioport(pdev); + if (need_ioport) { + bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO); + err = pci_enable_device(pdev); + } else { + bars = pci_select_bars(pdev, IORESOURCE_MEM); + err = pci_enable_device(pdev); + } if (err) return err; @@ -904,7 +948,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev, pci_using_dac = 0; } - err = pci_request_regions(pdev, e1000_driver_name); + err = pci_request_selected_regions(pdev, bars, e1000_driver_name); if (err) goto err_pci_reg; @@ -922,6 +966,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev, adapter->netdev = netdev; adapter->pdev = pdev; adapter->msg_enable = (1 << debug) - 1; + adapter->bars = bars; + adapter->need_ioport = need_ioport; hw = &adapter->hw; hw->back = adapter; @@ -932,12 +978,14 @@ static int __devinit e1000_probe(struct pci_dev *pdev, if (!hw->hw_addr) goto err_ioremap; - for (i = BAR_1; i <= BAR_5; i++) { - if (pci_resource_len(pdev, i) == 0) - continue; - if (pci_resource_flags(pdev, i) & IORESOURCE_IO) { - hw->io_base = pci_resource_start(pdev, i); - break; + if (adapter->need_ioport) { + for (i = BAR_1; i <= BAR_5; i++) { + if (pci_resource_len(pdev, i) == 0) + continue; + if (pci_resource_flags(pdev, i) & IORESOURCE_IO) { + hw->io_base = pci_resource_start(pdev, i); + break; + } } } @@ -1202,7 +1250,7 @@ err_sw_init: err_ioremap: free_netdev(netdev); err_alloc_etherdev: - pci_release_regions(pdev); + pci_release_selected_regions(pdev, bars); err_pci_reg: err_dma: pci_disable_device(pdev); @@ -1249,7 +1297,7 @@ static void __devexit e1000_remove(struct pci_dev *pdev) iounmap(hw->hw_addr); if (hw->flash_address) iounmap(hw->flash_address); - pci_release_regions(pdev); + pci_release_selected_regions(pdev, adapter->bars); free_netdev(netdev); @@ -5040,7 +5088,11 @@ static int e1000_resume(struct pci_dev *pdev) pci_set_power_state(pdev, PCI_D0); pci_restore_state(pdev); - err = pci_enable_device(pdev); + + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); if (err) { printk(KERN_ERR "e1000: Cannot enable PCI device from suspend\n"); return err; @@ -5136,8 +5188,13 @@ static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev) struct net_device *netdev = pci_get_drvdata(pdev); struct e1000_adapter *adapter = netdev->priv; struct e1000_hw *hw = &adapter->hw; + int err; - if (pci_enable_device(pdev)) { + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); + if (err) { printk(KERN_ERR "e1000: Cannot re-enable PCI device after reset.\n"); return PCI_ERS_RESULT_DISCONNECT; } |