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 int ret = wil_ioctl(wil, ifr->ifr_data, cmd);
65 wil_dbg_misc(wil, "ioctl(0x%04x) -> %d\n", cmd, ret);
70 static const struct net_device_ops wil_netdev_ops = {
73 .ndo_start_xmit = wil_start_xmit,
74 .ndo_set_mac_address = eth_mac_addr,
75 .ndo_validate_addr = eth_validate_addr,
76 .ndo_change_mtu = wil_change_mtu,
77 .ndo_do_ioctl = wil_do_ioctl,
80 static int wil6210_netdev_poll_rx(struct napi_struct *napi, int budget)
82 struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
87 wil_rx_handle(wil, "a);
88 done = budget - quota;
92 wil6210_unmask_irq_rx(wil);
93 wil_dbg_txrx(wil, "NAPI RX complete\n");
96 wil_dbg_txrx(wil, "NAPI RX poll(%d) done %d\n", budget, done);
101 static int wil6210_netdev_poll_tx(struct napi_struct *napi, int budget)
103 struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
108 /* always process ALL Tx complete, regardless budget - it is fast */
109 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
110 struct vring *vring = &wil->vring_tx[i];
111 struct vring_tx_data *txdata = &wil->vring_tx_data[i];
113 if (!vring->va || !txdata->enabled)
116 tx_done += wil_tx_complete(wil, i);
119 if (tx_done < budget) {
121 wil6210_unmask_irq_tx(wil);
122 wil_dbg_txrx(wil, "NAPI TX complete\n");
125 wil_dbg_txrx(wil, "NAPI TX poll(%d) done %d\n", budget, tx_done);
127 return min(tx_done, budget);
130 static void wil_dev_setup(struct net_device *dev)
133 dev->tx_queue_len = WIL_TX_Q_LEN_DEFAULT;
136 void *wil_if_alloc(struct device *dev)
138 struct net_device *ndev;
139 struct wireless_dev *wdev;
140 struct wil6210_priv *wil;
141 struct ieee80211_channel *ch;
144 wdev = wil_cfg80211_init(dev);
146 dev_err(dev, "wil_cfg80211_init failed\n");
150 wil = wdev_to_wil(wdev);
153 wil_dbg_misc(wil, "%s()\n", __func__);
155 rc = wil_priv_init(wil);
157 dev_err(dev, "wil_priv_init failed\n");
161 wdev->iftype = NL80211_IFTYPE_STATION; /* TODO */
162 /* default monitor channel */
163 ch = wdev->wiphy->bands[IEEE80211_BAND_60GHZ]->channels;
164 cfg80211_chandef_create(&wdev->preset_chandef, ch, NL80211_CHAN_NO_HT);
166 ndev = alloc_netdev(0, "wlan%d", NET_NAME_UNKNOWN, wil_dev_setup);
168 dev_err(dev, "alloc_netdev_mqs failed\n");
173 ndev->netdev_ops = &wil_netdev_ops;
174 wil_set_ethtoolops(ndev);
175 ndev->ieee80211_ptr = wdev;
176 ndev->hw_features = NETIF_F_HW_CSUM | NETIF_F_RXCSUM |
177 NETIF_F_SG | NETIF_F_GRO |
178 NETIF_F_TSO | NETIF_F_TSO6 |
181 ndev->features |= ndev->hw_features;
182 SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy));
185 netif_napi_add(ndev, &wil->napi_rx, wil6210_netdev_poll_rx,
186 WIL6210_NAPI_BUDGET);
187 netif_tx_napi_add(ndev, &wil->napi_tx, wil6210_netdev_poll_tx,
188 WIL6210_NAPI_BUDGET);
190 netif_tx_stop_all_queues(ndev);
195 wil_priv_deinit(wil);
203 void wil_if_free(struct wil6210_priv *wil)
205 struct net_device *ndev = wil_to_ndev(wil);
207 wil_dbg_misc(wil, "%s()\n", __func__);
212 wil_priv_deinit(wil);
214 wil_to_ndev(wil) = NULL;
220 int wil_if_add(struct wil6210_priv *wil)
222 struct net_device *ndev = wil_to_ndev(wil);
225 wil_dbg_misc(wil, "%s()\n", __func__);
227 rc = register_netdev(ndev);
229 dev_err(&ndev->dev, "Failed to register netdev: %d\n", rc);
236 void wil_if_remove(struct wil6210_priv *wil)
238 struct net_device *ndev = wil_to_ndev(wil);
240 wil_dbg_misc(wil, "%s()\n", __func__);
242 unregister_netdev(ndev);