Merge branch 'intel-wired-lan-driver-updates-2024-04-23-i40e-iavf-ice'

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2024-04-23 (i40e, iavf, ice)

This series contains updates to i40e, iavf, and ice drivers.

Sindhu removes WQ_MEM_RECLAIM flag from workqueue for i40e.

Erwan Velu adjusts message to avoid confusion on base being reported on
i40e.

Sudheer corrects insufficient check for TC equality on iavf.

Jake corrects ordering of locks to avoid possible deadlock on ice.
====================

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: kuba-moo

drivers/net/ethernet/intel/i40e/i40e_main.c

@@ -16107,8 +16107,8 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	val = FIELD_GET(I40E_PRTGL_SAH_MFS_MASK,
 			rd32(&pf->hw, I40E_PRTGL_SAH));
 	if (val < MAX_FRAME_SIZE_DEFAULT)
-		dev_warn(&pdev->dev, "MFS for port %x has been set below the default: %x\n",
-			 pf->hw.port, val);
+		dev_warn(&pdev->dev, "MFS for port %x (%d) has been set below the default (%d)\n",
+			 pf->hw.port, val, MAX_FRAME_SIZE_DEFAULT);
 
 	/* Add a filter to drop all Flow control frames from any VSI from being
 	 * transmitted. By doing so we stop a malicious VF from sending out
@@ -16650,7 +16650,7 @@ static int __init i40e_init_module(void)
 	 * since we need to be able to guarantee forward progress even under
 	 * memory pressure.
 	 */
-	i40e_wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 0, i40e_driver_name);
+	i40e_wq = alloc_workqueue("%s", 0, 0, i40e_driver_name);
 	if (!i40e_wq) {
 		pr_err("%s: Failed to create workqueue\n", i40e_driver_name);
 		return -ENOMEM;

drivers/net/ethernet/intel/iavf/iavf_main.c

@@ -3502,6 +3502,34 @@ static void iavf_del_all_cloud_filters(struct iavf_adapter *adapter)
 	spin_unlock_bh(&adapter->cloud_filter_list_lock);
 }
 
+/**
+ * iavf_is_tc_config_same - Compare the mqprio TC config with the
+ * TC config already configured on this adapter.
+ * @adapter: board private structure
+ * @mqprio_qopt: TC config received from kernel.
+ *
+ * This function compares the TC config received from the kernel
+ * with the config already configured on the adapter.
+ *
+ * Return: True if configuration is same, false otherwise.
+ **/
+static bool iavf_is_tc_config_same(struct iavf_adapter *adapter,
+				   struct tc_mqprio_qopt *mqprio_qopt)
+{
+	struct virtchnl_channel_info *ch = &adapter->ch_config.ch_info[0];
+	int i;
+
+	if (adapter->num_tc != mqprio_qopt->num_tc)
+		return false;
+
+	for (i = 0; i < adapter->num_tc; i++) {
+		if (ch[i].count != mqprio_qopt->count[i] ||
+		    ch[i].offset != mqprio_qopt->offset[i])
+			return false;
+	}
+	return true;
+}
+
 /**
  * __iavf_setup_tc - configure multiple traffic classes
  * @netdev: network interface device structure
@@ -3559,7 +3587,7 @@ static int __iavf_setup_tc(struct net_device *netdev, void *type_data)
 		if (ret)
 			return ret;
 		/* Return if same TC config is requested */
-		if (adapter->num_tc == num_tc)
+		if (iavf_is_tc_config_same(adapter, &mqprio_qopt->qopt))
 			return 0;
 		adapter->num_tc = num_tc;
 

drivers/net/ethernet/intel/ice/ice_vf_lib.c

@@ -856,6 +856,11 @@ int ice_reset_vf(struct ice_vf *vf, u32 flags)
 		return 0;
 	}
 
+	if (flags & ICE_VF_RESET_LOCK)
+		mutex_lock(&vf->cfg_lock);
+	else
+		lockdep_assert_held(&vf->cfg_lock);
+
 	lag = pf->lag;
 	mutex_lock(&pf->lag_mutex);
 	if (lag && lag->bonded && lag->primary) {
@@ -867,11 +872,6 @@ int ice_reset_vf(struct ice_vf *vf, u32 flags)
 			act_prt = ICE_LAG_INVALID_PORT;
 	}
 
-	if (flags & ICE_VF_RESET_LOCK)
-		mutex_lock(&vf->cfg_lock);
-	else
-		lockdep_assert_held(&vf->cfg_lock);
-
 	if (ice_is_vf_disabled(vf)) {
 		vsi = ice_get_vf_vsi(vf);
 		if (!vsi) {
@@ -956,14 +956,14 @@ int ice_reset_vf(struct ice_vf *vf, u32 flags)
 	ice_mbx_clear_malvf(&vf->mbx_info);
 
 out_unlock:
-	if (flags & ICE_VF_RESET_LOCK)
-		mutex_unlock(&vf->cfg_lock);
-
 	if (lag && lag->bonded && lag->primary &&
 	    act_prt != ICE_LAG_INVALID_PORT)
 		ice_lag_move_vf_nodes_cfg(lag, pri_prt, act_prt);
 	mutex_unlock(&pf->lag_mutex);
 
+	if (flags & ICE_VF_RESET_LOCK)
+		mutex_unlock(&vf->cfg_lock);
+
 	return err;
 }