From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Rose Subject: [RFC net-next PATCH 0/4] Add new settings for ethtool Date: Wed, 27 Jul 2011 15:17:44 -0700 Message-ID: <20110727221406.8435.44324.stgit@gitlad.jf.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: davem@davemloft.net, bhutchings@solarflare.com, jeffrey.t.kirsher@intel.com To: netdev@vger.kernel.org Return-path: Received: from mga11.intel.com ([192.55.52.93]:58331 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755304Ab1G0WRs (ORCPT ); Wed, 27 Jul 2011 18:17:48 -0400 Sender: netdev-owner@vger.kernel.org List-ID: This series of patches implements several changes to the way SR-IOV can be configured to allow for per port assignment of the number of VFs. In addition, patches 1/4 and 2/4 of this patch series adds a new flag bit to the PCI device structure dev_flags that is used by the kvm module to indicate when a PCI device is assigned to a guest virtual machine (VM) and changes to the ixgbe driver to make use of this new bit. The advantage these first two patches provide is to prevent destruction of virtual functions (VFs) by the physical function (PF) driver when it is removed if the PF driver finds that any VFs are still assigned to guest VMs. This in turn prevents panics that will result when the VF device disappears from the guest VM without notification. Patches 3/4 and 4/4 of this patch series implement new settings for Ethtool that allow for reconfiguration of the number of VFs per PF without resorting to use of the module parameter which is only capable of setting a single number of VFs per PF, to set the number of VM queues for devices that support it and an on/off switch for the anti-spoofing feature. A follow on patch for Ethtool that implements these settings will be sent separately. Patches 1/4 and 2/4 of this series could also be considered for submission to the current net tree and also the stable tree since they prevent catastrophic results when the PF driver is removed while VFs are assigned to guest VMs. --- Greg Rose (4): ixgbe: Add support for new ethtool settings ethtool: Add new set commands ixgbe: Reconfigure SR-IOV Init pci: Add flag indicating device has been assigned by KVM drivers/net/ixgbe/ixgbe.h | 2 drivers/net/ixgbe/ixgbe_ethtool.c | 96 ++++++++++++++++++ drivers/net/ixgbe/ixgbe_main.c | 109 ++------------------ drivers/net/ixgbe/ixgbe_sriov.c | 197 +++++++++++++++++++++++++++++++++++++ drivers/net/ixgbe/ixgbe_sriov.h | 6 + drivers/net/ixgbe/ixgbe_type.h | 4 + include/linux/ethtool.h | 11 ++ include/linux/pci.h | 2 virt/kvm/assigned-dev.c | 2 virt/kvm/iommu.c | 4 + 10 files changed, 333 insertions(+), 100 deletions(-) -- Signed-off-by: Greg Rose