From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51149) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZowZw-0000Ie-WB for qemu-devel@nongnu.org; Wed, 21 Oct 2015 12:49:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZowZt-0002Uw-Jh for qemu-devel@nongnu.org; Wed, 21 Oct 2015 12:49:32 -0400 Received: from mga11.intel.com ([192.55.52.93]:18254) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZowZt-0002Ug-AV for qemu-devel@nongnu.org; Wed, 21 Oct 2015 12:49:29 -0400 From: Lan Tianyu Date: Thu, 22 Oct 2015 00:37:34 +0800 Message-Id: <1445445464-5056-3-git-send-email-tianyu.lan@intel.com> In-Reply-To: <1445445464-5056-1-git-send-email-tianyu.lan@intel.com> References: <1445445464-5056-1-git-send-email-tianyu.lan@intel.com> Subject: [Qemu-devel] [RFC Patch 02/12] IXGBE: Add new mail box event to restore VF status in the PF driver List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 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; -- 1.8.4.rc0.1.g8f6a3e5.dirty