These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / net / ethernet / intel / ixgbe / ixgbe_sriov.c

diff --git a/kernel/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/kernel/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 1d17b58..fcd8b27 100644 (file)
--- a/kernel/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/kernel/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -116,6 +116,12 @@ static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
                         * we want to disable the querying by default.
                         */
                        adapter->vfinfo[i].rss_query_enabled = 0;
+
+                       /* Untrust all VFs */
+                       adapter->vfinfo[i].trusted = false;
+
+                       /* set the default xcast mode */
+                       adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE;
                }
 
                return 0;
@@ -1001,6 +1007,59 @@ static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
        return 0;
 }
 
+static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
+                                     u32 *msgbuf, u32 vf)
+{
+       struct ixgbe_hw *hw = &adapter->hw;
+       int xcast_mode = msgbuf[1];
+       u32 vmolr, disable, enable;
+
+       /* verify the PF is supporting the correct APIs */
+       switch (adapter->vfinfo[vf].vf_api) {
+       case ixgbe_mbox_api_12:
+               break;
+       default:
+               return -EOPNOTSUPP;
+       }
+
+       if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
+           !adapter->vfinfo[vf].trusted) {
+               xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
+       }
+
+       if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
+               goto out;
+
+       switch (xcast_mode) {
+       case IXGBEVF_XCAST_MODE_NONE:
+               disable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
+               enable = 0;
+               break;
+       case IXGBEVF_XCAST_MODE_MULTI:
+               disable = IXGBE_VMOLR_MPE;
+               enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
+               break;
+       case IXGBEVF_XCAST_MODE_ALLMULTI:
+               disable = 0;
+               enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
+               break;
+       default:
+               return -EOPNOTSUPP;
+       }
+
+       vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
+       vmolr &= ~disable;
+       vmolr |= enable;
+       IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
+
+       adapter->vfinfo[vf].xcast_mode = xcast_mode;
+
+out:
+       msgbuf[1] = xcast_mode;
+
+       return 0;
+}
+
 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
 {
        u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
@@ -1063,6 +1122,9 @@ 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_UPDATE_XCAST_MODE:
+               retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
+               break;
        default:
                e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
                retval = IXGBE_ERR_MBX;
@@ -1124,6 +1186,17 @@ void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
        IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
 }
 
+static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
+{
+       struct ixgbe_hw *hw = &adapter->hw;
+       u32 ping;
+
+       ping = IXGBE_PF_CONTROL_MSG;
+       if (adapter->vfinfo[vf].clear_to_send)
+               ping |= IXGBE_VT_MSGTYPE_CTS;
+       ixgbe_write_mbx(hw, &ping, 1, vf);
+}
+
 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
 {
        struct ixgbe_hw *hw = &adapter->hw;
@@ -1416,6 +1489,28 @@ int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
        return 0;
 }
 
+int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
+{
+       struct ixgbe_adapter *adapter = netdev_priv(netdev);
+
+       if (vf >= adapter->num_vfs)
+               return -EINVAL;
+
+       /* nothing to do */
+       if (adapter->vfinfo[vf].trusted == setting)
+               return 0;
+
+       adapter->vfinfo[vf].trusted = setting;
+
+       /* reset VF to reconfigure features */
+       adapter->vfinfo[vf].clear_to_send = false;
+       ixgbe_ping_vf(adapter, vf);
+
+       e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
+
+       return 0;
+}
+
 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
                            int vf, struct ifla_vf_info *ivi)
 {
@@ -1430,5 +1525,6 @@ int ixgbe_ndo_get_vf_config(struct net_device *netdev,
        ivi->qos = adapter->vfinfo[vf].pf_qos;
        ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
        ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
+       ivi->trusted = adapter->vfinfo[vf].trusted;
        return 0;
 }