Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

 1) Seccomp BPF filters can now be JIT'd, from Alexei Starovoitov.

 2) Multiqueue support in xen-netback and xen-netfront, from Andrew J
    Benniston.

 3) Allow tweaking of aggregation settings in cdc_ncm driver, from Bjørn
    Mork.

 4) BPF now has a "random" opcode, from Chema Gonzalez.

 5) Add more BPF documentation and improve test framework, from Daniel
    Borkmann.

 6) Support TCP fastopen over ipv6, from Daniel Lee.

 7) Add software TSO helper functions and use them to support software
    TSO in mvneta and mv643xx_eth drivers.  From Ezequiel Garcia.

 8) Support software TSO in fec driver too, from Nimrod Andy.

 9) Add Broadcom SYSTEMPORT driver, from Florian Fainelli.

10) Handle broadcasts more gracefully over macvlan when there are large
    numbers of interfaces configured, from Herbert Xu.

11) Allow more control over fwmark used for non-socket based responses,
    from Lorenzo Colitti.

12) Do TCP congestion window limiting based upon measurements, from Neal
    Cardwell.

13) Support busy polling in SCTP, from Neal Horman.

14) Allow RSS key to be configured via ethtool, from Venkata Duvvuru.

15) Bridge promisc mode handling improvements from Vlad Yasevich.

16) Don't use inetpeer entries to implement ID generation any more, it
    performs poorly, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1522 commits)
  rtnetlink: fix userspace API breakage for iproute2 < v3.9.0
  tcp: fixing TLP's FIN recovery
  net: fec: Add software TSO support
  net: fec: Add Scatter/gather support
  net: fec: Increase buffer descriptor entry number
  net: fec: Factorize feature setting
  net: fec: Enable IP header hardware checksum
  net: fec: Factorize the .xmit transmit function
  bridge: fix compile error when compiling without IPv6 support
  bridge: fix smatch warning / potential null pointer dereference
  via-rhine: fix full-duplex with autoneg disable
  bnx2x: Enlarge the dorq threshold for VFs
  bnx2x: Check for UNDI in uncommon branch
  bnx2x: Fix 1G-baseT link
  bnx2x: Fix link for KR with swapped polarity lane
  sctp: Fix sk_ack_backlog wrap-around problem
  net/core: Add VF link state control policy
  net/fsl: xgmac_mdio is dependent on OF_MDIO
  net/fsl: Make xgmac_mdio read error message useful
  net_sched: drr: warn when qdisc is not work conserving
  ...

1 files changed, 189 insertions, 20 deletions

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 02c11a7f7d29..f5b9d2062573 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -29,6 +29,24 @@
 /***********************misc routines*****************************/
 
 /**
+ * i40e_vc_disable_vf
+ * @pf: pointer to the pf info
+ * @vf: pointer to the vf info
+ *
+ * Disable the VF through a SW reset
+ **/
+static inline void i40e_vc_disable_vf(struct i40e_pf *pf, struct i40e_vf *vf)
+{
+	struct i40e_hw *hw = &pf->hw;
+	u32 reg;
+
+	reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
+	reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
+	wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
+	i40e_flush(hw);
+}
+
+/**
  * i40e_vc_isvalid_vsi_id
  * @vf: pointer to the vf info
  * @vsi_id: vf relative vsi id
@@ -230,9 +248,8 @@ static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_idx,
 	tx_ctx.qlen = info->ring_len;
 	tx_ctx.rdylist = le16_to_cpu(pf->vsi[vsi_idx]->info.qs_handle[0]);
 	tx_ctx.rdylist_act = 0;
-	tx_ctx.head_wb_ena = 1;
-	tx_ctx.head_wb_addr = info->dma_ring_addr +
-			      (info->ring_len * sizeof(struct i40e_tx_desc));
+	tx_ctx.head_wb_ena = info->headwb_enabled;
+	tx_ctx.head_wb_addr = info->dma_headwb_addr;
 
 	/* clear the context in the HMC */
 	ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
@@ -336,6 +353,7 @@ static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_idx,
 	rx_ctx.tphhead_ena = 1;
 	rx_ctx.lrxqthresh = 2;
 	rx_ctx.crcstrip = 1;
+	rx_ctx.prefena = 1;
 
 	/* clear the context in the HMC */
 	ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
@@ -416,6 +434,15 @@ static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
 	if (ret)
 		dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
 
+	/* Set VF bandwidth if specified */
+	if (vf->tx_rate) {
+		ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
+						  vf->tx_rate / 50, 0, NULL);
+		if (ret)
+			dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
+				vf->vf_id, ret);
+	}
+
 error_alloc_vsi_res:
 	return ret;
 }
@@ -815,6 +842,10 @@ void i40e_free_vfs(struct i40e_pf *pf)
 	kfree(pf->vf);
 	pf->vf = NULL;
 
+	/* This check is for when the driver is unloaded while VFs are
+	 * assigned. Setting the number of VFs to 0 through sysfs is caught
+	 * before this function ever gets called.
+	 */
 	if (!i40e_vfs_are_assigned(pf)) {
 		pci_disable_sriov(pf->pdev);
 		/* Acknowledge VFLR for all VFS. Without this, VFs will fail to
@@ -867,6 +898,7 @@ int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
 		ret = -ENOMEM;
 		goto err_alloc;
 	}
+	pf->vf = vfs;
 
 	/* apply default profile */
 	for (i = 0; i < num_alloc_vfs; i++) {
@@ -876,13 +908,13 @@ int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
 
 		/* assign default capabilities */
 		set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
+		vfs[i].spoofchk = true;
 		/* vf resources get allocated during reset */
 		i40e_reset_vf(&vfs[i], false);
 
 		/* enable vf vplan_qtable mappings */
 		i40e_enable_vf_mappings(&vfs[i]);
 	}
-	pf->vf = vfs;
 	pf->num_alloc_vfs = num_alloc_vfs;
 
 	i40e_enable_pf_switch_lb(pf);
@@ -951,7 +983,12 @@ int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
 	if (num_vfs)
 		return i40e_pci_sriov_enable(pdev, num_vfs);
 
-	i40e_free_vfs(pf);
+	if (!i40e_vfs_are_assigned(pf)) {
+		i40e_free_vfs(pf);
+	} else {
+		dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
+		return -EINVAL;
+	}
 	return 0;
 }
 
@@ -2022,16 +2059,14 @@ int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
 	}
 
 	/* delete the temporary mac address */
-	i40e_del_filter(vsi, vf->default_lan_addr.addr, 0, true, false);
+	i40e_del_filter(vsi, vf->default_lan_addr.addr, vf->port_vlan_id,
+			true, false);
 
-	/* add the new mac address */
-	f = i40e_add_filter(vsi, mac, 0, true, false);
-	if (!f) {
-		dev_err(&pf->pdev->dev,
-			"Unable to add VF ucast filter\n");
-		ret = -ENOMEM;
-		goto error_param;
-	}
+	/* Delete all the filters for this VSI - we're going to kill it
+	 * anyway.
+	 */
+	list_for_each_entry(f, &vsi->mac_filter_list, list)
+		i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
 
 	dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
 	/* program mac filter */
@@ -2040,7 +2075,7 @@ int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
 		ret = -EIO;
 		goto error_param;
 	}
-	memcpy(vf->default_lan_addr.addr, mac, ETH_ALEN);
+	ether_addr_copy(vf->default_lan_addr.addr, mac);
 	vf->pf_set_mac = true;
 	dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
 	ret = 0;
@@ -2088,18 +2123,28 @@ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
 		goto error_pvid;
 	}
 
-	if (vsi->info.pvid == 0 && i40e_is_vsi_in_vlan(vsi))
+	if (vsi->info.pvid == 0 && i40e_is_vsi_in_vlan(vsi)) {
 		dev_err(&pf->pdev->dev,
 			"VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",
 			vf_id);
+		/* Administrator Error - knock the VF offline until he does
+		 * the right thing by reconfiguring his network correctly
+		 * and then reloading the VF driver.
+		 */
+		i40e_vc_disable_vf(pf, vf);
+	}
 
 	/* Check for condition where there was already a port VLAN ID
 	 * filter set and now it is being deleted by setting it to zero.
+	 * Additionally check for the condition where there was a port
+	 * VLAN but now there is a new and different port VLAN being set.
 	 * Before deleting all the old VLAN filters we must add new ones
 	 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
 	 * MAC addresses deleted.
 	 */
-	if (!(vlan_id || qos) && vsi->info.pvid)
+	if ((!(vlan_id || qos) ||
+	    (vlan_id | qos) != le16_to_cpu(vsi->info.pvid)) &&
+	    vsi->info.pvid)
 		ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
 
 	if (vsi->info.pvid) {
@@ -2150,6 +2195,8 @@ error_pvid:
 	return ret;
 }
 
+#define I40E_BW_CREDIT_DIVISOR 50     /* 50Mbps per BW credit */
+#define I40E_MAX_BW_INACTIVE_ACCUM 4  /* device can accumulate 4 credits max */
 /**
  * i40e_ndo_set_vf_bw
  * @netdev: network interface device structure
@@ -2158,9 +2205,76 @@ error_pvid:
  *
  * configure vf tx rate
  **/
-int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int tx_rate)
+int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
+		       int max_tx_rate)
 {
-	return -EOPNOTSUPP;
+	struct i40e_netdev_priv *np = netdev_priv(netdev);
+	struct i40e_pf *pf = np->vsi->back;
+	struct i40e_vsi *vsi;
+	struct i40e_vf *vf;
+	int speed = 0;
+	int ret = 0;
+
+	/* validate the request */
+	if (vf_id >= pf->num_alloc_vfs) {
+		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
+		ret = -EINVAL;
+		goto error;
+	}
+
+	if (min_tx_rate) {
+		dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for vf %d.\n",
+			min_tx_rate, vf_id);
+		return -EINVAL;
+	}
+
+	vf = &(pf->vf[vf_id]);
+	vsi = pf->vsi[vf->lan_vsi_index];
+	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
+		dev_err(&pf->pdev->dev, "Uninitialized VF %d.\n", vf_id);
+		ret = -EINVAL;
+		goto error;
+	}
+
+	switch (pf->hw.phy.link_info.link_speed) {
+	case I40E_LINK_SPEED_40GB:
+		speed = 40000;
+		break;
+	case I40E_LINK_SPEED_10GB:
+		speed = 10000;
+		break;
+	case I40E_LINK_SPEED_1GB:
+		speed = 1000;
+		break;
+	default:
+		break;
+	}
+
+	if (max_tx_rate > speed) {
+		dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for vf %d.",
+			max_tx_rate, vf->vf_id);
+		ret = -EINVAL;
+		goto error;
+	}
+
+	if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
+		dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
+		max_tx_rate = 50;
+	}
+
+	/* Tx rate credits are in values of 50Mbps, 0 is disabled*/
+	ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
+					  max_tx_rate / I40E_BW_CREDIT_DIVISOR,
+					  I40E_MAX_BW_INACTIVE_ACCUM, NULL);
+	if (ret) {
+		dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
+			ret);
+		ret = -EIO;
+		goto error;
+	}
+	vf->tx_rate = max_tx_rate;
+error:
+	return ret;
 }
 
 /**
@@ -2200,10 +2314,18 @@ int i40e_ndo_get_vf_config(struct net_device *netdev,
 
 	memcpy(&ivi->mac, vf->default_lan_addr.addr, ETH_ALEN);
 
-	ivi->tx_rate = 0;
+	ivi->max_tx_rate = vf->tx_rate;
+	ivi->min_tx_rate = 0;
 	ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
 	ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
 		   I40E_VLAN_PRIORITY_SHIFT;
+	if (vf->link_forced == false)
+		ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
+	else if (vf->link_up == true)
+		ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
+	else
+		ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
+	ivi->spoofchk = vf->spoofchk;
 	ret = 0;
 
 error_param:
@@ -2270,3 +2392,50 @@ int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
 error_out:
 	return ret;
 }
+
+/**
+ * i40e_ndo_set_vf_spoofchk
+ * @netdev: network interface device structure
+ * @vf_id: vf identifier
+ * @enable: flag to enable or disable feature
+ *
+ * Enable or disable VF spoof checking
+ **/
+int i40e_ndo_set_vf_spoofck(struct net_device *netdev, int vf_id, bool enable)
+{
+	struct i40e_netdev_priv *np = netdev_priv(netdev);
+	struct i40e_vsi *vsi = np->vsi;
+	struct i40e_pf *pf = vsi->back;
+	struct i40e_vsi_context ctxt;
+	struct i40e_hw *hw = &pf->hw;
+	struct i40e_vf *vf;
+	int ret = 0;
+
+	/* validate the request */
+	if (vf_id >= pf->num_alloc_vfs) {
+		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	vf = &(pf->vf[vf_id]);
+
+	if (enable == vf->spoofchk)
+		goto out;
+
+	vf->spoofchk = enable;
+	memset(&ctxt, 0, sizeof(ctxt));
+	ctxt.seid = pf->vsi[vf->lan_vsi_index]->seid;
+	ctxt.pf_num = pf->hw.pf_id;
+	ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
+	if (enable)
+		ctxt.info.sec_flags |= I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK;
+	ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
+	if (ret) {
+		dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
+			ret);
+		ret = -EIO;
+	}
+out:
+	return ret;
+}