iavf: Add framework to enable ethtool RSS config

Add the virtchnl message interface to VF, so that VF can request RSS
input set(s) based on PF's capability.

This framework allows ethtool RSS config support on the VF driver.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 6cd6b9dfe5d41..7a81e7ceea653 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -962,6 +962,7 @@ void iavf_down(struct iavf_adapter *adapter)
 	struct iavf_cloud_filter *cf;
 	struct iavf_fdir_fltr *fdir;
 	struct iavf_mac_filter *f;
+	struct iavf_adv_rss *rss;
 
 	if (adapter->state <= __IAVF_DOWN_PENDING)
 		return;
@@ -1004,6 +1005,12 @@ void iavf_down(struct iavf_adapter *adapter)
 	}
 	spin_unlock_bh(&adapter->fdir_fltr_lock);
 
+	/* remove all advance RSS configuration */
+	spin_lock_bh(&adapter->adv_rss_lock);
+	list_for_each_entry(rss, &adapter->adv_rss_list_head, list)
+		rss->state = IAVF_ADV_RSS_DEL_REQUEST;
+	spin_unlock_bh(&adapter->adv_rss_lock);
+
 	if (!(adapter->flags & IAVF_FLAG_PF_COMMS_FAILED) &&
 	    adapter->state != __IAVF_RESETTING) {
 		/* cancel any current operation */
@@ -1016,6 +1023,7 @@ void iavf_down(struct iavf_adapter *adapter)
 		adapter->aq_required |= IAVF_FLAG_AQ_DEL_VLAN_FILTER;
 		adapter->aq_required |= IAVF_FLAG_AQ_DEL_CLOUD_FILTER;
 		adapter->aq_required |= IAVF_FLAG_AQ_DEL_FDIR_FILTER;
+		adapter->aq_required |= IAVF_FLAG_AQ_DEL_ADV_RSS_CFG;
 		adapter->aq_required |= IAVF_FLAG_AQ_DISABLE_QUEUES;
 	}
 
@@ -1646,6 +1654,14 @@ static int iavf_process_aq_command(struct iavf_adapter *adapter)
 		iavf_del_fdir_filter(adapter);
 		return IAVF_SUCCESS;
 	}
+	if (adapter->aq_required & IAVF_FLAG_AQ_ADD_ADV_RSS_CFG) {
+		iavf_add_adv_rss_cfg(adapter);
+		return 0;
+	}
+	if (adapter->aq_required & IAVF_FLAG_AQ_DEL_ADV_RSS_CFG) {
+		iavf_del_adv_rss_cfg(adapter);
+		return 0;
+	}
 	return -EAGAIN;
 }
 
@@ -3758,11 +3774,13 @@ static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	spin_lock_init(&adapter->mac_vlan_list_lock);
 	spin_lock_init(&adapter->cloud_filter_list_lock);
 	spin_lock_init(&adapter->fdir_fltr_lock);
+	spin_lock_init(&adapter->adv_rss_lock);
 
 	INIT_LIST_HEAD(&adapter->mac_filter_list);
 	INIT_LIST_HEAD(&adapter->vlan_filter_list);
 	INIT_LIST_HEAD(&adapter->cloud_filter_list);
 	INIT_LIST_HEAD(&adapter->fdir_list_head);
+	INIT_LIST_HEAD(&adapter->adv_rss_list_head);
 
 	INIT_WORK(&adapter->reset_task, iavf_reset_task);
 	INIT_WORK(&adapter->adminq_task, iavf_adminq_task);
@@ -3868,6 +3886,7 @@ static void iavf_remove(struct pci_dev *pdev)
 	struct iavf_adapter *adapter = netdev_priv(netdev);
 	struct iavf_fdir_fltr *fdir, *fdirtmp;
 	struct iavf_vlan_filter *vlf, *vlftmp;
+	struct iavf_adv_rss *rss, *rsstmp;
 	struct iavf_mac_filter *f, *ftmp;
 	struct iavf_cloud_filter *cf, *cftmp;
 	struct iavf_hw *hw = &adapter->hw;
@@ -3955,6 +3974,14 @@ static void iavf_remove(struct pci_dev *pdev)
 	}
 	spin_unlock_bh(&adapter->fdir_fltr_lock);
 
+	spin_lock_bh(&adapter->adv_rss_lock);
+	list_for_each_entry_safe(rss, rsstmp, &adapter->adv_rss_list_head,
+				 list) {
+		list_del(&rss->list);
+		kfree(rss);
+	}
+	spin_unlock_bh(&adapter->adv_rss_lock);
+
 	free_netdev(netdev);
 
 	pci_disable_pcie_error_reporting(pdev);