diff options
| -rw-r--r-- | drivers/net/e1000e/e1000.h | 4 | ||||
| -rw-r--r-- | drivers/net/e1000e/netdev.c | 48 |
2 files changed, 46 insertions, 6 deletions
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h index d3bc6f8101f..4a4f62e002b 100644 --- a/drivers/net/e1000e/e1000.h +++ b/drivers/net/e1000e/e1000.h @@ -283,6 +283,10 @@ struct e1000_adapter { unsigned long led_status; unsigned int flags; + + /* for ioport free */ + int bars; + int need_ioport; }; struct e1000_info { diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index ccb8ca2cbb2..22f2fc90635 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -4002,7 +4002,11 @@ static int e1000_resume(struct pci_dev *pdev) pci_set_power_state(pdev, PCI_D0); pci_restore_state(pdev); e1000e_disable_l1aspm(pdev); - err = pci_enable_device(pdev); + + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); if (err) { dev_err(&pdev->dev, "Cannot enable PCI device from suspend\n"); @@ -4103,9 +4107,14 @@ 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(netdev); struct e1000_hw *hw = &adapter->hw; + int err; e1000e_disable_l1aspm(pdev); - if (pci_enable_device(pdev)) { + if (adapter->need_ioport) + err = pci_enable_device(pdev); + else + err = pci_enable_device_mem(pdev); + if (err) { dev_err(&pdev->dev, "Cannot re-enable PCI device after reset.\n"); return PCI_ERS_RESULT_DISCONNECT; @@ -4184,6 +4193,21 @@ static void e1000_print_device_info(struct e1000_adapter *adapter) } /** + * e1000e_is_need_ioport - determine if an adapter needs ioport resources or not + * @pdev: PCI device information struct + * + * Returns true if an adapters needs ioport resources + **/ +static int e1000e_is_need_ioport(struct pci_dev *pdev) +{ + switch (pdev->device) { + /* Currently there are no adapters that need ioport resources */ + default: + return false; + } +} + +/** * e1000_probe - Device Initialization Routine * @pdev: PCI device information struct * @ent: entry in e1000_pci_tbl @@ -4208,9 +4232,19 @@ 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; e1000e_disable_l1aspm(pdev); - err = pci_enable_device(pdev); + + /* do not allocate ioport bars when not needed */ + need_ioport = e1000e_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_mem(pdev); + } if (err) return err; @@ -4233,7 +4267,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev, } } - err = pci_request_regions(pdev, e1000e_driver_name); + err = pci_request_selected_regions(pdev, bars, e1000e_driver_name); if (err) goto err_pci_reg; @@ -4258,6 +4292,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev, adapter->hw.adapter = adapter; adapter->hw.mac.type = ei->mac; adapter->msg_enable = (1 << NETIF_MSG_DRV | NETIF_MSG_PROBE) - 1; + adapter->bars = bars; + adapter->need_ioport = need_ioport; mmio_start = pci_resource_start(pdev, 0); mmio_len = pci_resource_len(pdev, 0); @@ -4497,7 +4533,7 @@ 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); @@ -4545,7 +4581,7 @@ static void __devexit e1000_remove(struct pci_dev *pdev) iounmap(adapter->hw.hw_addr); if (adapter->hw.flash_address) iounmap(adapter->hw.flash_address); - pci_release_regions(pdev); + pci_release_selected_regions(pdev, adapter->bars); free_netdev(netdev); |