1 files changed, 85 insertions, 116 deletions

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 257865647c..e8d5b889ad 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -3,7 +3,6 @@
 
 #include "iavf.h"
 #include "iavf_prototype.h"
-#include "iavf_client.h"
 /* All iavf tracepoints are defined by the include below, which must
  * be included exactly once across the whole kernel with
  * CREATE_TRACE_POINTS defined
@@ -1255,7 +1254,7 @@ static void iavf_configure(struct iavf_adapter *adapter)
  * iavf_up_complete - Finish the last steps of bringing up a connection
  * @adapter: board private structure
  *
- * Expects to be called while holding the __IAVF_IN_CRITICAL_TASK bit lock.
+ * Expects to be called while holding crit_lock.
  **/
 static void iavf_up_complete(struct iavf_adapter *adapter)
 {
@@ -1265,8 +1264,6 @@ static void iavf_up_complete(struct iavf_adapter *adapter)
 	iavf_napi_enable_all(adapter);
 
 	adapter->aq_required |= IAVF_FLAG_AQ_ENABLE_QUEUES;
-	if (CLIENT_ENABLED(adapter))
-		adapter->flags |= IAVF_FLAG_CLIENT_NEEDS_OPEN;
 	mod_delayed_work(adapter->wq, &adapter->watchdog_task, 0);
 }
 
@@ -1381,7 +1378,7 @@ static void iavf_clear_adv_rss_conf(struct iavf_adapter *adapter)
  * iavf_down - Shutdown the connection processing
  * @adapter: board private structure
  *
- * Expects to be called while holding the __IAVF_IN_CRITICAL_TASK bit lock.
+ * Expects to be called while holding crit_lock.
  **/
 void iavf_down(struct iavf_adapter *adapter)
 {
@@ -1401,8 +1398,10 @@ void iavf_down(struct iavf_adapter *adapter)
 	iavf_clear_fdir_filters(adapter);
 	iavf_clear_adv_rss_conf(adapter);
 
-	if (!(adapter->flags & IAVF_FLAG_PF_COMMS_FAILED) &&
-	    !(test_bit(__IAVF_IN_REMOVE_TASK, &adapter->crit_section))) {
+	if (adapter->flags & IAVF_FLAG_PF_COMMS_FAILED)
+		return;
+
+	if (!test_bit(__IAVF_IN_REMOVE_TASK, &adapter->crit_section)) {
 		/* cancel any current operation */
 		adapter->current_op = VIRTCHNL_OP_UNKNOWN;
 		/* Schedule operations to close down the HW. Don't wait
@@ -1934,6 +1933,17 @@ err_alloc_queues:
 }
 
 /**
+ * iavf_free_interrupt_scheme - Undo what iavf_init_interrupt_scheme does
+ * @adapter: board private structure
+ **/
+static void iavf_free_interrupt_scheme(struct iavf_adapter *adapter)
+{
+	iavf_free_q_vectors(adapter);
+	iavf_reset_interrupt_capability(adapter);
+	iavf_free_queues(adapter);
+}
+
+/**
  * iavf_free_rss - Free memory used by RSS structs
  * @adapter: board private structure
  **/
@@ -1961,11 +1971,9 @@ static int iavf_reinit_interrupt_scheme(struct iavf_adapter *adapter, bool runni
 	if (running)
 		iavf_free_traffic_irqs(adapter);
 	iavf_free_misc_irq(adapter);
-	iavf_reset_interrupt_capability(adapter);
-	iavf_free_q_vectors(adapter);
-	iavf_free_queues(adapter);
+	iavf_free_interrupt_scheme(adapter);
 
-	err =  iavf_init_interrupt_scheme(adapter);
+	err = iavf_init_interrupt_scheme(adapter);
 	if (err)
 		goto err;
 
@@ -2000,7 +2008,7 @@ static void iavf_finish_config(struct work_struct *work)
 	mutex_lock(&adapter->crit_lock);
 
 	if ((adapter->flags & IAVF_FLAG_SETUP_NETDEV_FEATURES) &&
-	    adapter->netdev_registered &&
+	    adapter->netdev->reg_state == NETREG_REGISTERED &&
 	    !test_bit(__IAVF_IN_REMOVE_TASK, &adapter->crit_section)) {
 		netdev_update_features(adapter->netdev);
 		adapter->flags &= ~IAVF_FLAG_SETUP_NETDEV_FEATURES;
@@ -2008,7 +2016,7 @@ static void iavf_finish_config(struct work_struct *work)
 
 	switch (adapter->state) {
 	case __IAVF_DOWN:
-		if (!adapter->netdev_registered) {
+		if (adapter->netdev->reg_state != NETREG_REGISTERED) {
 			err = register_netdevice(adapter->netdev);
 			if (err) {
 				dev_err(&adapter->pdev->dev, "Unable to register netdev (%d)\n",
@@ -2022,7 +2030,6 @@ static void iavf_finish_config(struct work_struct *work)
 						  __IAVF_INIT_CONFIG_ADAPTER);
 				goto out;
 			}
-			adapter->netdev_registered = true;
 		}
 
 		/* Set the real number of queues when reset occurs while
@@ -2337,11 +2344,6 @@ static void iavf_startup(struct iavf_adapter *adapter)
 	/* driver loaded, probe complete */
 	adapter->flags &= ~IAVF_FLAG_PF_COMMS_FAILED;
 	adapter->flags &= ~IAVF_FLAG_RESET_PENDING;
-	status = iavf_set_mac_type(hw);
-	if (status) {
-		dev_err(&pdev->dev, "Failed to set MAC type (%d)\n", status);
-		goto err;
-	}
 
 	ret = iavf_check_reset_complete(hw);
 	if (ret) {
@@ -2682,12 +2684,6 @@ static void iavf_init_config_adapter(struct iavf_adapter *adapter)
 	adapter->link_up = false;
 	netif_tx_stop_all_queues(netdev);
 
-	if (CLIENT_ALLOWED(adapter)) {
-		err = iavf_lan_add_device(adapter);
-		if (err)
-			dev_info(&pdev->dev, "Failed to add VF to client API service list: %d\n",
-				 err);
-	}
 	dev_info(&pdev->dev, "MAC address: %pM\n", adapter->hw.mac.addr);
 	if (netdev->features & NETIF_F_GRO)
 		dev_info(&pdev->dev, "GRO is enabled\n");
@@ -2884,7 +2880,6 @@ static void iavf_watchdog_task(struct work_struct *work)
 		return;
 	}
 
-	schedule_delayed_work(&adapter->client_task, msecs_to_jiffies(5));
 	mutex_unlock(&adapter->crit_lock);
 restart_watchdog:
 	if (adapter->state >= __IAVF_DOWN)
@@ -2953,9 +2948,7 @@ static void iavf_disable_vf(struct iavf_adapter *adapter)
 	spin_unlock_bh(&adapter->cloud_filter_list_lock);
 
 	iavf_free_misc_irq(adapter);
-	iavf_reset_interrupt_capability(adapter);
-	iavf_free_q_vectors(adapter);
-	iavf_free_queues(adapter);
+	iavf_free_interrupt_scheme(adapter);
 	memset(adapter->vf_res, 0, IAVF_VIRTCHNL_VF_RESOURCE_SIZE);
 	iavf_shutdown_adminq(&adapter->hw);
 	adapter->flags &= ~IAVF_FLAG_RESET_PENDING;
@@ -2997,16 +2990,6 @@ static void iavf_reset_task(struct work_struct *work)
 		return;
 	}
 
-	while (!mutex_trylock(&adapter->client_lock))
-		usleep_range(500, 1000);
-	if (CLIENT_ENABLED(adapter)) {
-		adapter->flags &= ~(IAVF_FLAG_CLIENT_NEEDS_OPEN |
-				    IAVF_FLAG_CLIENT_NEEDS_CLOSE |
-				    IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS |
-				    IAVF_FLAG_SERVICE_CLIENT_REQUESTED);
-		cancel_delayed_work_sync(&adapter->client_task);
-		iavf_notify_client_close(&adapter->vsi, true);
-	}
 	iavf_misc_irq_disable(adapter);
 	if (adapter->flags & IAVF_FLAG_RESET_NEEDED) {
 		adapter->flags &= ~IAVF_FLAG_RESET_NEEDED;
@@ -3050,7 +3033,6 @@ static void iavf_reset_task(struct work_struct *work)
 		dev_err(&adapter->pdev->dev, "Reset never finished (%x)\n",
 			reg_val);
 		iavf_disable_vf(adapter);
-		mutex_unlock(&adapter->client_lock);
 		mutex_unlock(&adapter->crit_lock);
 		return; /* Do not attempt to reinit. It's dead, Jim. */
 	}
@@ -3189,7 +3171,6 @@ continue_reset:
 	adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
 
 	wake_up(&adapter->reset_waitqueue);
-	mutex_unlock(&adapter->client_lock);
 	mutex_unlock(&adapter->crit_lock);
 
 	return;
@@ -3200,7 +3181,6 @@ reset_err:
 	}
 	iavf_disable_vf(adapter);
 
-	mutex_unlock(&adapter->client_lock);
 	mutex_unlock(&adapter->crit_lock);
 	dev_err(&adapter->pdev->dev, "failed to allocate resources during reinit\n");
 }
@@ -3300,48 +3280,6 @@ out:
 }
 
 /**
- * iavf_client_task - worker thread to perform client work
- * @work: pointer to work_struct containing our data
- *
- * This task handles client interactions. Because client calls can be
- * reentrant, we can't handle them in the watchdog.
- **/
-static void iavf_client_task(struct work_struct *work)
-{
-	struct iavf_adapter *adapter =
-		container_of(work, struct iavf_adapter, client_task.work);
-
-	/* If we can't get the client bit, just give up. We'll be rescheduled
-	 * later.
-	 */
-
-	if (!mutex_trylock(&adapter->client_lock))
-		return;
-
-	if (adapter->flags & IAVF_FLAG_SERVICE_CLIENT_REQUESTED) {
-		iavf_client_subtask(adapter);
-		adapter->flags &= ~IAVF_FLAG_SERVICE_CLIENT_REQUESTED;
-		goto out;
-	}
-	if (adapter->flags & IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS) {
-		iavf_notify_client_l2_params(&adapter->vsi);
-		adapter->flags &= ~IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS;
-		goto out;
-	}
-	if (adapter->flags & IAVF_FLAG_CLIENT_NEEDS_CLOSE) {
-		iavf_notify_client_close(&adapter->vsi, false);
-		adapter->flags &= ~IAVF_FLAG_CLIENT_NEEDS_CLOSE;
-		goto out;
-	}
-	if (adapter->flags & IAVF_FLAG_CLIENT_NEEDS_OPEN) {
-		iavf_notify_client_open(&adapter->vsi);
-		adapter->flags &= ~IAVF_FLAG_CLIENT_NEEDS_OPEN;
-	}
-out:
-	mutex_unlock(&adapter->client_lock);
-}
-
-/**
  * iavf_free_all_tx_resources - Free Tx Resources for All Queues
  * @adapter: board private structure
  *
@@ -4301,8 +4239,6 @@ static int iavf_close(struct net_device *netdev)
 	}
 
 	set_bit(__IAVF_VSI_DOWN, adapter->vsi.state);
-	if (CLIENT_ENABLED(adapter))
-		adapter->flags |= IAVF_FLAG_CLIENT_NEEDS_CLOSE;
 	/* We cannot send IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS before
 	 * IAVF_FLAG_AQ_DISABLE_QUEUES because in such case there is rtnl
 	 * deadlock with adminq_task() until iavf_close timeouts. We must send
@@ -4371,10 +4307,6 @@ static int iavf_change_mtu(struct net_device *netdev, int new_mtu)
 	netdev_dbg(netdev, "changing MTU from %d to %d\n",
 		   netdev->mtu, new_mtu);
 	netdev->mtu = new_mtu;
-	if (CLIENT_ENABLED(adapter)) {
-		iavf_notify_client_l2_params(&adapter->vsi);
-		adapter->flags |= IAVF_FLAG_SERVICE_CLIENT_REQUESTED;
-	}
 
 	if (netif_running(netdev)) {
 		iavf_schedule_reset(adapter, IAVF_FLAG_RESET_NEEDED);
@@ -4452,6 +4384,9 @@ static int iavf_set_features(struct net_device *netdev,
 	    (features & NETIF_VLAN_OFFLOAD_FEATURES))
 		iavf_set_vlan_offload_features(adapter, netdev->features,
 					       features);
+	if (CRC_OFFLOAD_ALLOWED(adapter) &&
+	    ((netdev->features & NETIF_F_RXFCS) ^ (features & NETIF_F_RXFCS)))
+		iavf_schedule_reset(adapter, IAVF_FLAG_RESET_NEEDED);
 
 	if ((netdev->features & NETIF_F_NTUPLE) ^ (features & NETIF_F_NTUPLE)) {
 		if (features & NETIF_F_NTUPLE)
@@ -4580,6 +4515,9 @@ iavf_get_netdev_vlan_hw_features(struct iavf_adapter *adapter)
 		}
 	}
 
+	if (CRC_OFFLOAD_ALLOWED(adapter))
+		hw_features |= NETIF_F_RXFCS;
+
 	return hw_features;
 }
 
@@ -4744,6 +4682,55 @@ iavf_fix_netdev_vlan_features(struct iavf_adapter *adapter,
 }
 
 /**
+ * iavf_fix_strip_features - fix NETDEV CRC and VLAN strip features
+ * @adapter: board private structure
+ * @requested_features: stack requested NETDEV features
+ *
+ * Returns fixed-up features bits
+ **/
+static netdev_features_t
+iavf_fix_strip_features(struct iavf_adapter *adapter,
+			netdev_features_t requested_features)
+{
+	struct net_device *netdev = adapter->netdev;
+	bool crc_offload_req, is_vlan_strip;
+	netdev_features_t vlan_strip;
+	int num_non_zero_vlan;
+
+	crc_offload_req = CRC_OFFLOAD_ALLOWED(adapter) &&
+			  (requested_features & NETIF_F_RXFCS);
+	num_non_zero_vlan = iavf_get_num_vlans_added(adapter);
+	vlan_strip = (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX);
+	is_vlan_strip = requested_features & vlan_strip;
+
+	if (!crc_offload_req)
+		return requested_features;
+
+	if (!num_non_zero_vlan && (netdev->features & vlan_strip) &&
+	    !(netdev->features & NETIF_F_RXFCS) && is_vlan_strip) {
+		requested_features &= ~vlan_strip;
+		netdev_info(netdev, "Disabling VLAN stripping as FCS/CRC stripping is also disabled and there is no VLAN configured\n");
+		return requested_features;
+	}
+
+	if ((netdev->features & NETIF_F_RXFCS) && is_vlan_strip) {
+		requested_features &= ~vlan_strip;
+		if (!(netdev->features & vlan_strip))
+			netdev_info(netdev, "To enable VLAN stripping, first need to enable FCS/CRC stripping");
+
+		return requested_features;
+	}
+
+	if (num_non_zero_vlan && is_vlan_strip &&
+	    !(netdev->features & NETIF_F_RXFCS)) {
+		requested_features &= ~NETIF_F_RXFCS;
+		netdev_info(netdev, "To disable FCS/CRC stripping, first need to disable VLAN stripping");
+	}
+
+	return requested_features;
+}
+
+/**
  * iavf_fix_features - fix up the netdev feature bits
  * @netdev: our net device
  * @features: desired feature bits
@@ -4755,10 +4742,12 @@ static netdev_features_t iavf_fix_features(struct net_device *netdev,
 {
 	struct iavf_adapter *adapter = netdev_priv(netdev);
 
+	features = iavf_fix_netdev_vlan_features(adapter, features);
+
 	if (!FDIR_FLTR_SUPPORT(adapter))
 		features &= ~NETIF_F_NTUPLE;
 
-	return iavf_fix_netdev_vlan_features(adapter, features);
+	return iavf_fix_strip_features(adapter, features);
 }
 
 static const struct net_device_ops iavf_netdev_ops = {
@@ -4795,7 +4784,7 @@ static int iavf_check_reset_complete(struct iavf_hw *hw)
 		if ((rstat == VIRTCHNL_VFR_VFACTIVE) ||
 		    (rstat == VIRTCHNL_VFR_COMPLETED))
 			return 0;
-		usleep_range(10, 20);
+		msleep(IAVF_RESET_WAIT_MS);
 	}
 	return -EBUSY;
 }
@@ -4992,7 +4981,6 @@ static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * and destroy them only once in remove
 	 */
 	mutex_init(&adapter->crit_lock);
-	mutex_init(&adapter->client_lock);
 	mutex_init(&hw->aq.asq_mutex);
 	mutex_init(&hw->aq.arq_mutex);
 
@@ -5012,7 +5000,6 @@ static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	INIT_WORK(&adapter->adminq_task, iavf_adminq_task);
 	INIT_WORK(&adapter->finish_config, iavf_finish_config);
 	INIT_DELAYED_WORK(&adapter->watchdog_task, iavf_watchdog_task);
-	INIT_DELAYED_WORK(&adapter->client_task, iavf_client_task);
 
 	/* Setup the wait queue for indicating transition to down status */
 	init_waitqueue_head(&adapter->down_waitqueue);
@@ -5053,8 +5040,7 @@ static int __maybe_unused iavf_suspend(struct device *dev_d)
 
 	netif_device_detach(netdev);
 
-	while (!mutex_trylock(&adapter->crit_lock))
-		usleep_range(500, 1000);
+	mutex_lock(&adapter->crit_lock);
 
 	if (netif_running(netdev)) {
 		rtnl_lock();
@@ -5125,7 +5111,6 @@ static void iavf_remove(struct pci_dev *pdev)
 	struct iavf_adapter *adapter;
 	struct net_device *netdev;
 	struct iavf_hw *hw;
-	int err;
 
 	/* Don't proceed with remove if netdev is already freed */
 	netdev = pci_get_drvdata(pdev);
@@ -5161,19 +5146,8 @@ static void iavf_remove(struct pci_dev *pdev)
 	cancel_delayed_work_sync(&adapter->watchdog_task);
 	cancel_work_sync(&adapter->finish_config);
 
-	rtnl_lock();
-	if (adapter->netdev_registered) {
-		unregister_netdevice(netdev);
-		adapter->netdev_registered = false;
-	}
-	rtnl_unlock();
-
-	if (CLIENT_ALLOWED(adapter)) {
-		err = iavf_lan_del_device(adapter);
-		if (err)
-			dev_warn(&pdev->dev, "Failed to delete client device: %d\n",
-				 err);
-	}
+	if (netdev->reg_state == NETREG_REGISTERED)
+		unregister_netdev(netdev);
 
 	mutex_lock(&adapter->crit_lock);
 	dev_info(&adapter->pdev->dev, "Removing device\n");
@@ -5192,7 +5166,6 @@ static void iavf_remove(struct pci_dev *pdev)
 	cancel_work_sync(&adapter->reset_task);
 	cancel_delayed_work_sync(&adapter->watchdog_task);
 	cancel_work_sync(&adapter->adminq_task);
-	cancel_delayed_work_sync(&adapter->client_task);
 
 	adapter->aq_required = 0;
 	adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
@@ -5200,9 +5173,7 @@ static void iavf_remove(struct pci_dev *pdev)
 	iavf_free_all_tx_resources(adapter);
 	iavf_free_all_rx_resources(adapter);
 	iavf_free_misc_irq(adapter);
-
-	iavf_reset_interrupt_capability(adapter);
-	iavf_free_q_vectors(adapter);
+	iavf_free_interrupt_scheme(adapter);
 
 	iavf_free_rss(adapter);
 
@@ -5212,13 +5183,11 @@ static void iavf_remove(struct pci_dev *pdev)
 	/* destroy the locks only once, here */
 	mutex_destroy(&hw->aq.arq_mutex);
 	mutex_destroy(&hw->aq.asq_mutex);
-	mutex_destroy(&adapter->client_lock);
 	mutex_unlock(&adapter->crit_lock);
 	mutex_destroy(&adapter->crit_lock);
 
 	iounmap(hw->hw_addr);
 	pci_release_regions(pdev);
-	iavf_free_queues(adapter);
 	kfree(adapter->vf_res);
 	spin_lock_bh(&adapter->mac_vlan_list_lock);
 	/* If we got removed before an up/down sequence, we've got a filter