1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
2 /* Copyright 2017-2019 NXP */
4 #include <linux/module.h>
7 #define ENETC_DRV_NAME_STR "ENETC VF driver"
10 static void enetc_msg_vsi_write_msg(struct enetc_hw *hw,
11 struct enetc_msg_swbd *msg)
15 val = enetc_vsi_set_msize(msg->size) | lower_32_bits(msg->dma);
16 enetc_wr(hw, ENETC_VSIMSGSNDAR1, upper_32_bits(msg->dma));
17 enetc_wr(hw, ENETC_VSIMSGSNDAR0, val);
20 static int enetc_msg_vsi_send(struct enetc_si *si, struct enetc_msg_swbd *msg)
25 enetc_msg_vsi_write_msg(&si->hw, msg);
28 vsimsgsr = enetc_rd(&si->hw, ENETC_VSIMSGSR);
29 if (!(vsimsgsr & ENETC_VSIMSGSR_MB))
32 usleep_range(1000, 2000);
38 /* check for message delivery error */
39 if (vsimsgsr & ENETC_VSIMSGSR_MS) {
40 dev_err(&si->pdev->dev, "VSI command execute error: %d\n",
41 ENETC_SIMSGSR_GET_MC(vsimsgsr));
48 static int enetc_msg_vsi_set_primary_mac_addr(struct enetc_ndev_priv *priv,
49 struct sockaddr *saddr)
51 struct enetc_msg_cmd_set_primary_mac *cmd;
52 struct enetc_msg_swbd msg;
55 msg.size = ALIGN(sizeof(struct enetc_msg_cmd_set_primary_mac), 64);
56 msg.vaddr = dma_alloc_coherent(priv->dev, msg.size, &msg.dma,
59 dev_err(priv->dev, "Failed to alloc Tx msg (size: %d)\n",
64 cmd = (struct enetc_msg_cmd_set_primary_mac *)msg.vaddr;
65 cmd->header.type = ENETC_MSG_CMD_MNG_MAC;
66 cmd->header.id = ENETC_MSG_CMD_MNG_ADD;
67 memcpy(&cmd->mac, saddr, sizeof(struct sockaddr));
69 /* send the command and wait */
70 err = enetc_msg_vsi_send(priv->si, &msg);
72 dma_free_coherent(priv->dev, msg.size, msg.vaddr, msg.dma);
77 static int enetc_vf_set_mac_addr(struct net_device *ndev, void *addr)
79 struct enetc_ndev_priv *priv = netdev_priv(ndev);
80 struct sockaddr *saddr = addr;
82 if (!is_valid_ether_addr(saddr->sa_data))
83 return -EADDRNOTAVAIL;
85 return enetc_msg_vsi_set_primary_mac_addr(priv, saddr);
88 static int enetc_vf_set_features(struct net_device *ndev,
89 netdev_features_t features)
91 return enetc_set_features(ndev, features);
95 static const struct net_device_ops enetc_ndev_ops = {
96 .ndo_open = enetc_open,
97 .ndo_stop = enetc_close,
98 .ndo_start_xmit = enetc_xmit,
99 .ndo_get_stats = enetc_get_stats,
100 .ndo_set_mac_address = enetc_vf_set_mac_addr,
101 .ndo_set_features = enetc_vf_set_features,
102 .ndo_eth_ioctl = enetc_ioctl,
103 .ndo_setup_tc = enetc_setup_tc,
106 static void enetc_vf_netdev_setup(struct enetc_si *si, struct net_device *ndev,
107 const struct net_device_ops *ndev_ops)
109 struct enetc_ndev_priv *priv = netdev_priv(ndev);
111 SET_NETDEV_DEV(ndev, &si->pdev->dev);
114 priv->dev = &si->pdev->dev;
117 priv->msg_enable = (NETIF_MSG_IFUP << 1) - 1;
118 ndev->netdev_ops = ndev_ops;
119 enetc_set_ethtool_ops(ndev);
120 ndev->watchdog_timeo = 5 * HZ;
121 ndev->max_mtu = ENETC_MAX_MTU;
123 ndev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM |
124 NETIF_F_HW_VLAN_CTAG_TX |
125 NETIF_F_HW_VLAN_CTAG_RX |
126 NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6;
127 ndev->features = NETIF_F_HIGHDMA | NETIF_F_SG | NETIF_F_RXCSUM |
128 NETIF_F_HW_VLAN_CTAG_TX |
129 NETIF_F_HW_VLAN_CTAG_RX |
130 NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6;
131 ndev->vlan_features = NETIF_F_SG | NETIF_F_HW_CSUM |
132 NETIF_F_TSO | NETIF_F_TSO6;
135 ndev->hw_features |= NETIF_F_RXHASH;
137 /* pick up primary MAC address from SI */
138 enetc_load_primary_mac_addr(&si->hw, ndev);
141 static int enetc_vf_probe(struct pci_dev *pdev,
142 const struct pci_device_id *ent)
144 struct enetc_ndev_priv *priv;
145 struct net_device *ndev;
149 err = enetc_pci_probe(pdev, KBUILD_MODNAME, 0);
151 return dev_err_probe(&pdev->dev, err, "PCI probing failed\n");
153 si = pci_get_drvdata(pdev);
155 enetc_get_si_caps(si);
157 ndev = alloc_etherdev_mq(sizeof(*priv), ENETC_MAX_NUM_TXQS);
160 dev_err(&pdev->dev, "netdev creation failed\n");
161 goto err_alloc_netdev;
164 enetc_vf_netdev_setup(si, ndev, &enetc_ndev_ops);
166 priv = netdev_priv(ndev);
168 enetc_init_si_rings_params(priv);
170 err = enetc_setup_cbdr(priv->dev, &si->hw, ENETC_CBDR_DEFAULT_SIZE,
175 err = enetc_alloc_si_resources(priv);
177 dev_err(&pdev->dev, "SI resource alloc failed\n");
178 goto err_alloc_si_res;
181 err = enetc_configure_si(priv);
183 dev_err(&pdev->dev, "Failed to configure SI\n");
187 err = enetc_alloc_msix(priv);
189 dev_err(&pdev->dev, "MSIX alloc failed\n");
193 err = register_netdev(ndev);
197 netif_carrier_off(ndev);
202 enetc_free_msix(priv);
205 enetc_free_si_resources(priv);
207 enetc_teardown_cbdr(&si->cbd_ring);
212 enetc_pci_remove(pdev);
217 static void enetc_vf_remove(struct pci_dev *pdev)
219 struct enetc_si *si = pci_get_drvdata(pdev);
220 struct enetc_ndev_priv *priv;
222 priv = netdev_priv(si->ndev);
223 unregister_netdev(si->ndev);
225 enetc_free_msix(priv);
227 enetc_free_si_resources(priv);
228 enetc_teardown_cbdr(&si->cbd_ring);
230 free_netdev(si->ndev);
232 enetc_pci_remove(pdev);
235 static const struct pci_device_id enetc_vf_id_table[] = {
236 { PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_VF) },
237 { 0, } /* End of table. */
239 MODULE_DEVICE_TABLE(pci, enetc_vf_id_table);
241 static struct pci_driver enetc_vf_driver = {
242 .name = KBUILD_MODNAME,
243 .id_table = enetc_vf_id_table,
244 .probe = enetc_vf_probe,
245 .remove = enetc_vf_remove,
247 module_pci_driver(enetc_vf_driver);
249 MODULE_DESCRIPTION(ENETC_DRV_NAME_STR);
250 MODULE_LICENSE("Dual BSD/GPL");