Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752503AbYKZPS5 (ORCPT ); Wed, 26 Nov 2008 10:18:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752360AbYKZPSq (ORCPT ); Wed, 26 Nov 2008 10:18:46 -0500 Received: from mga02.intel.com ([134.134.136.20]:9984 "EHLO mga02.intel.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751832AbYKZPSp (ORCPT ); Wed, 26 Nov 2008 10:18:45 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.33,669,1220252400"; d="scan'208";a="467573843" Date: Wed, 26 Nov 2008 22:21:56 +0800 From: Yu Zhao To: "linux-pci@vger.kernel.org" Cc: "greg@kroah.com" , "matthew@wil.cx" , "linux-kernel@vger.kernel.org" , "kvm@vger.kernel.org" , "xen-devel@lists.xensource.com" , "virtualization@lists.linux-foundation.org" Subject: [SR-IOV driver example 2/3] PF driver: integrate with SR-IOV core Message-ID: <20081126142156.GB13668@yzhao12-linux.sh.intel.com> References: <20081121183605.GA7810@yzhao12-linux.sh.intel.com> <20081126140303.GA13641@yzhao12-linux.sh.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081126140303.GA13641@yzhao12-linux.sh.intel.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2466 Lines: 75 This patch integrates the IGB driver with the SR-IOV core. It shows how the SR-IOV API is used to support the capability. Obviously people does not need to put much effort to integrate the PF driver with SR-IOV core. All SR-IOV standard stuff are handled by SR-IOV core and PF driver only concerns the device specific resource allocation and deallocation once it gets the necessary information (i.e. number of Virtual Functions) from the callback function. --- drivers/net/igb/igb_main.c | 30 ++++++++++++++++++++++++++++++ 1 files changed, 30 insertions(+), 0 deletions(-) diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index bc063d4..b8c7dc6 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -139,6 +139,7 @@ void igb_set_mc_list_pools(struct igb_adapter *, struct e1000_hw *, int, u16); static int igb_vmm_control(struct igb_adapter *, bool); static int igb_set_vf_mac(struct net_device *, int, u8*); static void igb_mbox_handler(struct igb_adapter *); +static int igb_virtual(struct pci_dev *, int); #endif static int igb_suspend(struct pci_dev *, pm_message_t); @@ -184,6 +185,9 @@ static struct pci_driver igb_driver = { #endif .shutdown = igb_shutdown, .err_handler = &igb_err_handler, +#ifdef CONFIG_PCI_IOV + .virtual = igb_virtual +#endif }; static int global_quad_port_a; /* global quad port a indication */ @@ -5107,6 +5111,32 @@ void igb_set_mc_list_pools(struct igb_adapter *adapter, reg_data |= (1 << 25); wr32(E1000_VMOLR(pool), reg_data); } + +static int +igb_virtual(struct pci_dev *pdev, int nr_virtfn) +{ + unsigned char my_mac_addr[6] = {0x00, 0xDE, 0xAD, 0xBE, 0xEF, 0xFF}; + struct net_device *netdev = pci_get_drvdata(pdev); + struct igb_adapter *adapter = netdev_priv(netdev); + int i; + + if (nr_virtfn > 7) + return -EINVAL; + + if (nr_virtfn) { + for (i = 0; i < nr_virtfn; i++) { + printk(KERN_INFO "SR-IOV: VF %d is enabled\n", i); + my_mac_addr[5] = (unsigned char)i; + igb_set_vf_mac(netdev, i, my_mac_addr); + igb_set_vf_vmolr(adapter, i); + } + } else + printk(KERN_INFO "SR-IOV is disabled\n"); + + adapter->vfs_allocated_count = nr_virtfn; + + return 0; +} #endif /* igb_main.c */ -- 1.5.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/