From mboxrd@z Thu Jan 1 00:00:00 1970 From: Taku Izumi Subject: Re: [PATCH 2/3] e1000e: make ioport free Date: Mon, 23 Jun 2008 17:32:09 +0900 Message-ID: <485F5F89.7070104@jp.fujitsu.com> References: <485B1B8E.1060108@jp.fujitsu.com> <485B1C7E.90203@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Cc: Tomohiro Kusumi , auke-jan.h.kok@intel.com To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, jeffrey.t.kirsher@intel.com Return-path: Received: from fgwmail7.fujitsu.co.jp ([192.51.44.37]:57593 "EHLO fgwmail7.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755327AbYFWIct (ORCPT ); Mon, 23 Jun 2008 04:32:49 -0400 In-Reply-To: <485B1C7E.90203@jp.fujitsu.com> Sender: netdev-owner@vger.kernel.org List-ID: This patch makes e1000e driver ioport-free. This corrects behavior in probe function so as not to request ioport resources. Signed-off-by: Taku Izumi --- drivers/net/e1000e/e1000.h | 3 +++ drivers/net/e1000e/netdev.c | 20 ++++++++++++++------ 2 files changed, 17 insertions(+), 6 deletions(-) Index: linux-2.6.25.7/drivers/net/e1000e/e1000.h =================================================================== --- linux-2.6.25.7.orig/drivers/net/e1000e/e1000.h +++ linux-2.6.25.7/drivers/net/e1000e/e1000.h @@ -266,6 +266,9 @@ struct e1000_adapter { unsigned long led_status; unsigned int flags; + + /* for ioport free */ + int bars; }; struct e1000_info { Index: linux-2.6.25.7/drivers/net/e1000e/netdev.c =================================================================== --- linux-2.6.25.7.orig/drivers/net/e1000e/netdev.c +++ linux-2.6.25.7/drivers/net/e1000e/netdev.c @@ -3523,7 +3523,8 @@ static int e1000_resume(struct pci_dev * pci_set_power_state(pdev, PCI_D0); pci_restore_state(pdev); e1000e_disable_l1aspm(pdev); - err = pci_enable_device(pdev); + + err = pci_enable_device_mem(pdev); if (err) { dev_err(&pdev->dev, "Cannot enable PCI device from suspend\n"); @@ -3622,9 +3623,11 @@ static pci_ers_result_t e1000_io_slot_re 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)) { + 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; @@ -3724,9 +3727,13 @@ static int __devinit e1000_probe(struct int i, err, pci_using_dac; u16 eeprom_data = 0; u16 eeprom_apme_mask = E1000_EEPROM_APME; + int bars; e1000e_disable_l1aspm(pdev); - err = pci_enable_device(pdev); + + /* do not allocate ioport bars when not needed */ + bars = pci_select_bars(pdev, IORESOURCE_MEM); + err = pci_enable_device_mem(pdev); if (err) return err; @@ -3749,7 +3756,7 @@ static int __devinit e1000_probe(struct } } - err = pci_request_regions(pdev, e1000e_driver_name); + err = pci_request_selected_regions(pdev, bars, e1000e_driver_name); if (err) goto err_pci_reg; @@ -3773,6 +3780,7 @@ static int __devinit e1000_probe(struct adapter->hw.adapter = adapter; adapter->hw.mac.type = ei->mac; adapter->msg_enable = (1 << NETIF_MSG_DRV | NETIF_MSG_PROBE) - 1; + adapter->bars = bars; mmio_start = pci_resource_start(pdev, 0); mmio_len = pci_resource_len(pdev, 0); @@ -4001,7 +4009,7 @@ 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); @@ -4045,7 +4053,7 @@ static void __devexit e1000_remove(struc 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);