2 * Copyright (c) 2012-2016 Qualcomm Atheros, Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <linux/etherdevice.h>
21 static int wil_open(struct net_device *ndev)
23 struct wil6210_priv *wil = ndev_to_wil(ndev);
25 wil_dbg_misc(wil, "%s()\n", __func__);
28 wil_err(wil, "%s() while in debug_fw mode\n", __func__);
35 static int wil_stop(struct net_device *ndev)
37 struct wil6210_priv *wil = ndev_to_wil(ndev);
39 wil_dbg_misc(wil, "%s()\n", __func__);
44 static int wil_change_mtu(struct net_device *ndev, int new_mtu)
46 struct wil6210_priv *wil = ndev_to_wil(ndev);
48 if (new_mtu < 68 || new_mtu > mtu_max) {
49 wil_err(wil, "invalid MTU %d\n", new_mtu);
53 wil_dbg_misc(wil, "change MTU %d -> %d\n", ndev->mtu, new_mtu);
59 static int wil_do_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd)
61 struct wil6210_priv *wil = ndev_to_wil(ndev);
63 return wil_ioctl(wil, ifr->ifr_data, cmd);
66 static const struct net_device_ops wil_netdev_ops = {
69 .ndo_start_xmit = wil_start_xmit,
70 .ndo_set_mac_address = eth_mac_addr,
71 .ndo_validate_addr = eth_validate_addr,
72 .ndo_change_mtu = wil_change_mtu,
73 .ndo_do_ioctl = wil_do_ioctl,
76 static int wil6210_netdev_poll_rx(struct napi_struct *napi, int budget)
78 struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
83 wil_rx_handle(wil, "a);
84 done = budget - quota;
88 wil6210_unmask_irq_rx(wil);
89 wil_dbg_txrx(wil, "NAPI RX complete\n");
92 wil_dbg_txrx(wil, "NAPI RX poll(%d) done %d\n", budget, done);
97 static int wil6210_netdev_poll_tx(struct napi_struct *napi, int budget)
99 struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
104 /* always process ALL Tx complete, regardless budget - it is fast */
105 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
106 struct vring *vring = &wil->vring_tx[i];
107 struct vring_tx_data *txdata = &wil->vring_tx_data[i];
109 if (!vring->va || !txdata->enabled)
112 tx_done += wil_tx_complete(wil, i);
115 if (tx_done < budget) {
117 wil6210_unmask_irq_tx(wil);
118 wil_dbg_txrx(wil, "NAPI TX complete\n");
121 wil_dbg_txrx(wil, "NAPI TX poll(%d) done %d\n", budget, tx_done);
123 return min(tx_done, budget);
126 static void wil_dev_setup(struct net_device *dev)
129 dev->tx_queue_len = WIL_TX_Q_LEN_DEFAULT;
132 void *wil_if_alloc(struct device *dev)
134 struct net_device *ndev;
135 struct wireless_dev *wdev;
136 struct wil6210_priv *wil;
137 struct ieee80211_channel *ch;
140 wdev = wil_cfg80211_init(dev);
142 dev_err(dev, "wil_cfg80211_init failed\n");
146 wil = wdev_to_wil(wdev);
148 wil->radio_wdev = wdev;
150 wil_dbg_misc(wil, "%s()\n", __func__);
152 rc = wil_priv_init(wil);
154 dev_err(dev, "wil_priv_init failed\n");
158 wdev->iftype = NL80211_IFTYPE_STATION; /* TODO */
159 /* default monitor channel */
160 ch = wdev->wiphy->bands[NL80211_BAND_60GHZ]->channels;
161 cfg80211_chandef_create(&wdev->preset_chandef, ch, NL80211_CHAN_NO_HT);
163 ndev = alloc_netdev(0, "wlan%d", NET_NAME_UNKNOWN, wil_dev_setup);
165 dev_err(dev, "alloc_netdev_mqs failed\n");
170 ndev->netdev_ops = &wil_netdev_ops;
171 wil_set_ethtoolops(ndev);
172 ndev->ieee80211_ptr = wdev;
173 ndev->hw_features = NETIF_F_HW_CSUM | NETIF_F_RXCSUM |
174 NETIF_F_SG | NETIF_F_GRO |
175 NETIF_F_TSO | NETIF_F_TSO6 |
178 ndev->features |= ndev->hw_features;
179 SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy));
185 wil_priv_deinit(wil);
193 void wil_if_free(struct wil6210_priv *wil)
195 struct net_device *ndev = wil_to_ndev(wil);
197 wil_dbg_misc(wil, "%s()\n", __func__);
202 wil_priv_deinit(wil);
204 wil_to_ndev(wil) = NULL;
210 int wil_if_add(struct wil6210_priv *wil)
212 struct wireless_dev *wdev = wil_to_wdev(wil);
213 struct wiphy *wiphy = wdev->wiphy;
214 struct net_device *ndev = wil_to_ndev(wil);
217 wil_dbg_misc(wil, "entered");
219 strlcpy(wiphy->fw_version, wil->fw_version, sizeof(wiphy->fw_version));
221 rc = wiphy_register(wiphy);
223 wil_err(wil, "failed to register wiphy, err %d\n", rc);
227 netif_napi_add(ndev, &wil->napi_rx, wil6210_netdev_poll_rx,
228 WIL6210_NAPI_BUDGET);
229 netif_tx_napi_add(ndev, &wil->napi_tx, wil6210_netdev_poll_tx,
230 WIL6210_NAPI_BUDGET);
232 netif_tx_stop_all_queues(ndev);
234 rc = register_netdev(ndev);
236 dev_err(&ndev->dev, "Failed to register netdev: %d\n", rc);
243 wiphy_unregister(wdev->wiphy);
247 void wil_if_remove(struct wil6210_priv *wil)
249 struct net_device *ndev = wil_to_ndev(wil);
250 struct wireless_dev *wdev = wil_to_wdev(wil);
252 wil_dbg_misc(wil, "%s()\n", __func__);
254 unregister_netdev(ndev);
255 wiphy_unregister(wdev->wiphy);