From patchwork Wed Oct 21 16:37:34 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lan,Tianyu" X-Patchwork-Id: 7459101 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D890EBEEA4 for ; Wed, 21 Oct 2015 16:55:03 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 05EFD2089C for ; Wed, 21 Oct 2015 16:55:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 023062087D for ; Wed, 21 Oct 2015 16:55:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755749AbbJUQtU (ORCPT ); Wed, 21 Oct 2015 12:49:20 -0400 Received: from mga02.intel.com ([134.134.136.20]:42549 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752016AbbJUQtS (ORCPT ); Wed, 21 Oct 2015 12:49:18 -0400 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 21 Oct 2015 09:49:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,712,1437462000"; d="scan'208";a="831882804" Received: from lantianyu-ws.sh.intel.com (HELO localhost) ([10.239.159.159]) by orsmga002.jf.intel.com with ESMTP; 21 Oct 2015 09:49:09 -0700 From: Lan Tianyu To: bhelgaas@google.com, carolyn.wyborny@intel.com, donald.c.skidmore@intel.com, eddie.dong@intel.com, nrupal.jani@intel.com, yang.z.zhang@intel.com, agraf@suse.de, kvm@vger.kernel.org, pbonzini@redhat.com, qemu-devel@nongnu.org, emil.s.tantilov@intel.com, intel-wired-lan@lists.osuosl.org, jeffrey.t.kirsher@intel.com, jesse.brandeburg@intel.com, john.ronciak@intel.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, matthew.vick@intel.com, mitch.a.williams@intel.com, netdev@vger.kernel.org, shannon.nelson@intel.com Cc: Lan Tianyu Subject: [RFC Patch 02/12] IXGBE: Add new mail box event to restore VF status in the PF driver Date: Thu, 22 Oct 2015 00:37:34 +0800 Message-Id: <1445445464-5056-3-git-send-email-tianyu.lan@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1445445464-5056-1-git-send-email-tianyu.lan@intel.com> References: <1445445464-5056-1-git-send-email-tianyu.lan@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch is to restore VF status in the PF driver when get event from VF. Signed-off-by: Lan Tianyu --- drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 + drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h | 1 + drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 40 ++++++++++++++++++++++++++ 3 files changed, 42 insertions(+) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index 636f9e3..9d5669a 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -148,6 +148,7 @@ struct vf_data_storage { bool pf_set_mac; u16 pf_vlan; /* When set, guest VLAN config not allowed. */ u16 pf_qos; + u32 vf_lpe; u16 tx_rate; u16 vlan_count; u8 spoofchk_enabled; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h index b1e4703..8fdb38d 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h @@ -91,6 +91,7 @@ enum ixgbe_pfvf_api_rev { /* mailbox API, version 1.1 VF requests */ #define IXGBE_VF_GET_QUEUES 0x09 /* get queue configuration */ +#define IXGBE_VF_NOTIFY_RESUME 0x0c /* VF notify PF migration finishing */ /* GET_QUEUES return data indices within the mailbox */ #define IXGBE_VF_TX_QUEUES 1 /* number of Tx queues supported */ diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c index 1d17b58..ab2a2e2 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c @@ -648,6 +648,42 @@ static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf, } } +/** + * Restore the settings by mailbox, after migration + **/ +void ixgbe_restore_setting(struct ixgbe_adapter *adapter, u32 vf) +{ + struct ixgbe_hw *hw = &adapter->hw; + u32 reg, reg_offset, vf_shift; + int rar_entry = hw->mac.num_rar_entries - (vf + 1); + + vf_shift = vf % 32; + reg_offset = vf / 32; + + /* enable transmit and receive for vf */ + reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); + reg |= (1 << vf_shift); + IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); + + reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); + reg |= (1 << vf_shift); + IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); + + reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); + reg |= (1 << vf_shift); + IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); + + ixgbe_vf_reset_event(adapter, vf); + + hw->mac.ops.set_rar(hw, rar_entry, + adapter->vfinfo[vf].vf_mac_addresses, + vf, IXGBE_RAH_AV); + + + if (adapter->vfinfo[vf].vf_lpe) + ixgbe_set_vf_lpe(adapter, &adapter->vfinfo[vf].vf_lpe, vf); +} + static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) { struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; @@ -1047,6 +1083,7 @@ static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) break; case IXGBE_VF_SET_LPE: retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf); + adapter->vfinfo[vf].vf_lpe = *msgbuf; break; case IXGBE_VF_SET_MACVLAN: retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf); @@ -1063,6 +1100,9 @@ static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) case IXGBE_VF_GET_RSS_KEY: retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf); break; + case IXGBE_VF_NOTIFY_RESUME: + ixgbe_restore_setting(adapter, vf); + break; default: e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); retval = IXGBE_ERR_MBX;