nfp: make nfp_net alloc/init/cleanup/free not depend on netdevs

struct nfp_net represents a vNIC, we will be moving away from the
requirement for every vNIC to have a netdev associated with it.
Remove "netdev" from some function names and prefer passing
struct nfp_net pointer as argument instead of struct net_device *.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/netronome/nfp/nfp_net.h

@@ -807,11 +807,13 @@ void nfp_net_get_fw_version(struct nfp_net_fw_version *fw_ver,
 			    void __iomem *ctrl_bar);
 
 struct nfp_net *
-nfp_net_netdev_alloc(struct pci_dev *pdev,
-		     unsigned int max_tx_rings, unsigned int max_rx_rings);
-void nfp_net_netdev_free(struct nfp_net *nn);
-int nfp_net_netdev_init(struct net_device *netdev);
-void nfp_net_netdev_clean(struct net_device *netdev);
+nfp_net_alloc(struct pci_dev *pdev,
+	      unsigned int max_tx_rings, unsigned int max_rx_rings);
+void nfp_net_free(struct nfp_net *nn);
+
+int nfp_net_init(struct nfp_net *nn);
+void nfp_net_clean(struct nfp_net *nn);
+
 void nfp_net_set_ethtool_ops(struct net_device *netdev);
 void nfp_net_info(struct nfp_net *nn);
 int nfp_net_reconfig(struct nfp_net *nn, u32 update);

drivers/net/ethernet/netronome/nfp/nfp_net_common.c

@@ -516,11 +516,10 @@ nfp_net_rx_ring_init(struct nfp_net_rx_ring *rx_ring,
 
 /**
  * nfp_net_vecs_init() - Assign IRQs and setup rvecs.
- * @netdev:   netdev structure
+ * @nn:		NFP Network structure
  */
-static void nfp_net_vecs_init(struct net_device *netdev)
+static void nfp_net_vecs_init(struct nfp_net *nn)
 {
-	struct nfp_net *nn = netdev_priv(netdev);
 	struct nfp_net_r_vector *r_vec;
 	int r;
 
@@ -3087,7 +3086,7 @@ void nfp_net_info(struct nfp_net *nn)
 }
 
 /**
- * nfp_net_netdev_alloc() - Allocate netdev and related structure
+ * nfp_net_alloc() - Allocate netdev and related structure
  * @pdev:         PCI device
  * @max_tx_rings: Maximum number of TX rings supported by device
  * @max_rx_rings: Maximum number of RX rings supported by device
@@ -3097,9 +3096,9 @@ void nfp_net_info(struct nfp_net *nn)
  *
  * Return: NFP Net device structure, or ERR_PTR on error.
  */
-struct nfp_net *nfp_net_netdev_alloc(struct pci_dev *pdev,
-				     unsigned int max_tx_rings,
-				     unsigned int max_rx_rings)
+struct nfp_net *nfp_net_alloc(struct pci_dev *pdev,
+			      unsigned int max_tx_rings,
+			      unsigned int max_rx_rings)
 {
 	struct net_device *netdev;
 	struct nfp_net *nn;
@@ -3144,10 +3143,10 @@ struct nfp_net *nfp_net_netdev_alloc(struct pci_dev *pdev,
 }
 
 /**
- * nfp_net_netdev_free() - Undo what @nfp_net_netdev_alloc() did
+ * nfp_net_free() - Undo what @nfp_net_alloc() did
  * @nn:      NFP Net device to reconfigure
  */
-void nfp_net_netdev_free(struct nfp_net *nn)
+void nfp_net_free(struct nfp_net *nn)
 {
 	free_netdev(nn->dp.netdev);
 }
@@ -3221,14 +3220,14 @@ static void nfp_net_irqmod_init(struct nfp_net *nn)
 }
 
 /**
- * nfp_net_netdev_init() - Initialise/finalise the netdev structure
- * @netdev:      netdev structure
+ * nfp_net_init() - Initialise/finalise the nfp_net structure
+ * @nn:		NFP Net device structure
  *
  * Return: 0 on success or negative errno on error.
  */
-int nfp_net_netdev_init(struct net_device *netdev)
+int nfp_net_init(struct nfp_net *nn)
 {
-	struct nfp_net *nn = netdev_priv(netdev);
+	struct net_device *netdev = nn->dp.netdev;
 	int err;
 
 	nn->dp.rx_dma_dir = DMA_FROM_DEVICE;
@@ -3367,19 +3366,17 @@ int nfp_net_netdev_init(struct net_device *netdev)
 	netif_carrier_off(netdev);
 
 	nfp_net_set_ethtool_ops(netdev);
-	nfp_net_vecs_init(netdev);
+	nfp_net_vecs_init(nn);
 
 	return register_netdev(netdev);
 }
 
 /**
- * nfp_net_netdev_clean() - Undo what nfp_net_netdev_init() did.
- * @netdev:      netdev structure
+ * nfp_net_clean() - Undo what nfp_net_init() did.
+ * @nn:		NFP Net device structure
  */
-void nfp_net_netdev_clean(struct net_device *netdev)
+void nfp_net_clean(struct nfp_net *nn)
 {
-	struct nfp_net *nn = netdev_priv(netdev);
-
 	unregister_netdev(nn->dp.netdev);
 
 	if (nn->dp.xdp_prog)

drivers/net/ethernet/netronome/nfp/nfp_net_main.c

@@ -277,7 +277,7 @@ static void nfp_net_pf_free_netdevs(struct nfp_pf *pf)
 		list_del(&nn->port_list);
 		pf->num_netdevs--;
 
-		nfp_net_netdev_free(nn);
+		nfp_net_free(nn);
 	}
 }
 
@@ -294,7 +294,7 @@ nfp_net_pf_alloc_port_netdev(struct nfp_pf *pf, void __iomem *ctrl_bar,
 	n_rx_rings = readl(ctrl_bar + NFP_NET_CFG_MAX_RXRINGS);
 
 	/* Allocate and initialise the netdev */
-	nn = nfp_net_netdev_alloc(pf->pdev, n_tx_rings, n_rx_rings);
+	nn = nfp_net_alloc(pf->pdev, n_tx_rings, n_rx_rings);
 	if (IS_ERR(nn))
 		return nn;
 
@@ -326,7 +326,7 @@ nfp_net_pf_init_port_netdev(struct nfp_pf *pf, struct nfp_net *nn,
 	 */
 	nn->me_freq_mhz = 1200;
 
-	err = nfp_net_netdev_init(nn->dp.netdev);
+	err = nfp_net_init(nn);
 	if (err)
 		return err;
 
@@ -451,7 +451,7 @@ nfp_net_pf_spawn_netdevs(struct nfp_pf *pf,
 err_prev_deinit:
 	list_for_each_entry_continue_reverse(nn, &pf->ports, port_list) {
 		nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
-		nfp_net_netdev_clean(nn->dp.netdev);
+		nfp_net_clean(nn);
 	}
 	nfp_net_irqs_disable(pf->pdev);
 err_vec_free:
@@ -518,11 +518,11 @@ static void nfp_net_refresh_netdevs(struct work_struct *work)
 		nn_warn(nn, "Port config changed, unregistering. Reboot required before port will be operational again.\n");
 
 		nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
-		nfp_net_netdev_clean(nn->dp.netdev);
+		nfp_net_clean(nn);
 
 		list_del(&nn->port_list);
 		pf->num_netdevs--;
-		nfp_net_netdev_free(nn);
+		nfp_net_free(nn);
 	}
 
 	if (list_empty(&pf->ports))
@@ -693,7 +693,7 @@ void nfp_net_pci_remove(struct nfp_pf *pf)
 	list_for_each_entry(nn, &pf->ports, port_list) {
 		nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
 
-		nfp_net_netdev_clean(nn->dp.netdev);
+		nfp_net_clean(nn);
 	}
 
 	nfp_net_pf_free_netdevs(pf);

drivers/net/ethernet/netronome/nfp/nfp_netvf_main.c

@@ -202,7 +202,7 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev,
 	rx_bar_off = NFP_PCIE_QUEUE(startq);
 
 	/* Allocate and initialise the netdev */
-	nn = nfp_net_netdev_alloc(pdev, max_tx_rings, max_rx_rings);
+	nn = nfp_net_alloc(pdev, max_tx_rings, max_rx_rings);
 	if (IS_ERR(nn)) {
 		err = PTR_ERR(nn);
 		goto err_ctrl_unmap;
@@ -283,7 +283,7 @@ static int nfp_netvf_pci_probe(struct pci_dev *pdev,
 	 */
 	nn->me_freq_mhz = 1200;
 
-	err = nfp_net_netdev_init(nn->dp.netdev);
+	err = nfp_net_init(nn);
 	if (err)
 		goto err_irqs_disable;
 
@@ -304,7 +304,7 @@ err_unmap_tx:
 	else
 		iounmap(vf->q_bar);
 err_netdev_free:
-	nfp_net_netdev_free(nn);
+	nfp_net_free(nn);
 err_ctrl_unmap:
 	iounmap(ctrl_bar);
 err_pci_regions:
@@ -328,7 +328,7 @@ static void nfp_netvf_pci_remove(struct pci_dev *pdev)
 	nfp_net_debugfs_dir_clean(&nn->debugfs_dir);
 	nfp_net_debugfs_dir_clean(&vf->ddir);
 
-	nfp_net_netdev_clean(nn->dp.netdev);
+	nfp_net_clean(nn);
 
 	nfp_net_irqs_disable(pdev);
 
@@ -340,7 +340,7 @@ static void nfp_netvf_pci_remove(struct pci_dev *pdev)
 	}
 	iounmap(nn->dp.ctrl_bar);
 
-	nfp_net_netdev_free(nn);
+	nfp_net_free(nn);
 
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);