2 * Copyright (c) 2012-2015 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__);
30 static int wil_stop(struct net_device *ndev)
32 struct wil6210_priv *wil = ndev_to_wil(ndev);
34 wil_dbg_misc(wil, "%s()\n", __func__);
39 static int wil_change_mtu(struct net_device *ndev, int new_mtu)
41 struct wil6210_priv *wil = ndev_to_wil(ndev);
43 if (new_mtu < 68 || new_mtu > mtu_max) {
44 wil_err(wil, "invalid MTU %d\n", new_mtu);
48 wil_dbg_misc(wil, "change MTU %d -> %d\n", ndev->mtu, new_mtu);
54 static int wil_do_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd)
56 struct wil6210_priv *wil = ndev_to_wil(ndev);
58 int ret = wil_ioctl(wil, ifr->ifr_data, cmd);
60 wil_dbg_misc(wil, "ioctl(0x%04x) -> %d\n", cmd, ret);
65 static const struct net_device_ops wil_netdev_ops = {
68 .ndo_start_xmit = wil_start_xmit,
69 .ndo_set_mac_address = eth_mac_addr,
70 .ndo_validate_addr = eth_validate_addr,
71 .ndo_change_mtu = wil_change_mtu,
72 .ndo_do_ioctl = wil_do_ioctl,
75 static int wil6210_netdev_poll_rx(struct napi_struct *napi, int budget)
77 struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
82 wil_rx_handle(wil, "a);
83 done = budget - quota;
87 wil6210_unmask_irq_rx(wil);
88 wil_dbg_txrx(wil, "NAPI RX complete\n");
91 wil_dbg_txrx(wil, "NAPI RX poll(%d) done %d\n", budget, done);
96 static int wil6210_netdev_poll_tx(struct napi_struct *napi, int budget)
98 struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
103 /* always process ALL Tx complete, regardless budget - it is fast */
104 for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
105 struct vring *vring = &wil->vring_tx[i];
110 tx_done += wil_tx_complete(wil, i);
113 if (tx_done < budget) {
115 wil6210_unmask_irq_tx(wil);
116 wil_dbg_txrx(wil, "NAPI TX complete\n");
119 wil_dbg_txrx(wil, "NAPI TX poll(%d) done %d\n", budget, tx_done);
121 return min(tx_done, budget);
124 static void wil_dev_setup(struct net_device *dev)
127 dev->tx_queue_len = WIL_TX_Q_LEN_DEFAULT;
130 void *wil_if_alloc(struct device *dev, void __iomem *csr)
132 struct net_device *ndev;
133 struct wireless_dev *wdev;
134 struct wil6210_priv *wil;
135 struct ieee80211_channel *ch;
138 wdev = wil_cfg80211_init(dev);
140 dev_err(dev, "wil_cfg80211_init failed\n");
144 wil = wdev_to_wil(wdev);
148 wil_dbg_misc(wil, "%s()\n", __func__);
150 rc = wil_priv_init(wil);
152 dev_err(dev, "wil_priv_init failed\n");
156 wdev->iftype = NL80211_IFTYPE_STATION; /* TODO */
157 /* default monitor channel */
158 ch = wdev->wiphy->bands[IEEE80211_BAND_60GHZ]->channels;
159 cfg80211_chandef_create(&wdev->preset_chandef, ch, NL80211_CHAN_NO_HT);
161 ndev = alloc_netdev(0, "wlan%d", NET_NAME_UNKNOWN, wil_dev_setup);
163 dev_err(dev, "alloc_netdev_mqs failed\n");
168 ndev->netdev_ops = &wil_netdev_ops;
169 wil_set_ethtoolops(ndev);
170 ndev->ieee80211_ptr = wdev;
171 ndev->hw_features = NETIF_F_HW_CSUM | NETIF_F_RXCSUM |
172 NETIF_F_SG | NETIF_F_GRO;
173 ndev->features |= ndev->hw_features;
174 SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy));
177 netif_napi_add(ndev, &wil->napi_rx, wil6210_netdev_poll_rx,
178 WIL6210_NAPI_BUDGET);
179 netif_napi_add(ndev, &wil->napi_tx, wil6210_netdev_poll_tx,
180 WIL6210_NAPI_BUDGET);
182 netif_tx_stop_all_queues(ndev);
187 wil_priv_deinit(wil);
195 void wil_if_free(struct wil6210_priv *wil)
197 struct net_device *ndev = wil_to_ndev(wil);
199 wil_dbg_misc(wil, "%s()\n", __func__);
204 wil_priv_deinit(wil);
206 wil_to_ndev(wil) = NULL;
212 int wil_if_add(struct wil6210_priv *wil)
214 struct net_device *ndev = wil_to_ndev(wil);
217 wil_dbg_misc(wil, "%s()\n", __func__);
219 rc = register_netdev(ndev);
221 dev_err(&ndev->dev, "Failed to register netdev: %d\n", rc);
228 void wil_if_remove(struct wil6210_priv *wil)
230 struct net_device *ndev = wil_to_ndev(wil);
232 wil_dbg_misc(wil, "%s()\n", __func__);
234 unregister_netdev(ndev);