Release 4.16 drivers/net/wireless/ath/wil6210/netdev.c

/*
 * Copyright (c) 2012-2017 Qualcomm Atheros, Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <linux/etherdevice.h>
#include "wil6210.h"
#include "txrx.h"



static int wil_open(struct net_device *ndev)
{
	struct wil6210_priv *wil = ndev_to_wil(ndev);
	int rc;

	wil_dbg_misc(wil, "open\n");

	if (debug_fw ||
	    test_bit(WMI_FW_CAPABILITY_WMI_ONLY, wil->fw_capabilities)) {
		wil_err(wil, "while in debug_fw or wmi_only mode\n");
		return -EINVAL;
	}

	rc = wil_pm_runtime_get(wil);
	if (rc < 0)
		return rc;

	rc = wil_up(wil);
	if (rc)
		wil_pm_runtime_put(wil);

	return rc;
}

Contributors
Person
Tokens
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CommitProp
Vladimir Kondratiev
49
53.26%
3
50.00%
Lazar Alexei
33
35.87%
2
33.33%
Dedy Lansky
10
10.87%
1
16.67%
Total
92
100.00%
6
100.00%



static int wil_stop(struct net_device *ndev)
{
	struct wil6210_priv *wil = ndev_to_wil(ndev);
	int rc;

	wil_dbg_misc(wil, "stop\n");

	rc = wil_down(wil);
	if (!rc)
		wil_pm_runtime_put(wil);

	return rc;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vladimir Kondratiev
32
62.75%
2
50.00%
Lazar Alexei
19
37.25%
2
50.00%
Total
51
100.00%
4
100.00%


static const struct net_device_ops wil_netdev_ops = {
	.ndo_open		= wil_open,
	.ndo_stop		= wil_stop,
	.ndo_start_xmit		= wil_start_xmit,
	.ndo_set_mac_address	= eth_mac_addr,
	.ndo_validate_addr	= eth_validate_addr,
};



static int wil6210_netdev_poll_rx(struct napi_struct *napi, int budget)
{
	struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
						napi_rx);
	int quota = budget;
	int done;

	wil_rx_handle(wil, &quota);
	done = budget - quota;

	if (done < budget) {
		napi_complete_done(napi, done);
		wil6210_unmask_irq_rx(wil);
		wil_dbg_txrx(wil, "NAPI RX complete\n");
	}

	wil_dbg_txrx(wil, "NAPI RX poll(%d) done %d\n", budget, done);

	return done;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vladimir Kondratiev
89
96.74%
2
66.67%
Eric Dumazet
3
3.26%
1
33.33%
Total
92
100.00%
3
100.00%



static int wil6210_netdev_poll_tx(struct napi_struct *napi, int budget)
{
	struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
						napi_tx);
	int tx_done = 0;
	uint i;

	/* always process ALL Tx complete, regardless budget - it is fast */
	for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
		struct vring *vring = &wil->vring_tx[i];
		struct vring_tx_data *txdata = &wil->vring_tx_data[i];

		if (!vring->va || !txdata->enabled)
			continue;

		tx_done += wil_tx_complete(wil, i);
	}

	if (tx_done < budget) {
		napi_complete(napi);
		wil6210_unmask_irq_tx(wil);
		wil_dbg_txrx(wil, "NAPI TX complete\n");
	}

	wil_dbg_txrx(wil, "NAPI TX poll(%d) done %d\n", budget, tx_done);

	return min(tx_done, budget);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vladimir Kondratiev
127
87.59%
2
66.67%
Maya Erez
18
12.41%
1
33.33%
Total
145
100.00%
3
100.00%



static void wil_dev_setup(struct net_device *dev)
{
	ether_setup(dev);
	dev->max_mtu = mtu_max;
	dev->tx_queue_len = WIL_TX_Q_LEN_DEFAULT;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vladimir Shulman
22
78.57%
1
50.00%
Jarod Wilson
6
21.43%
1
50.00%
Total
28
100.00%
2
100.00%



void *wil_if_alloc(struct device *dev)
{
	struct net_device *ndev;
	struct wireless_dev *wdev;
	struct wil6210_priv *wil;
	struct ieee80211_channel *ch;
	int rc = 0;

	wdev = wil_cfg80211_init(dev);
	if (IS_ERR(wdev)) {
		dev_err(dev, "wil_cfg80211_init failed\n");
		return wdev;
	}

	wil = wdev_to_wil(wdev);
	wil->wdev = wdev;
	wil->radio_wdev = wdev;

	wil_dbg_misc(wil, "if_alloc\n");

	rc = wil_priv_init(wil);
	if (rc) {
		dev_err(dev, "wil_priv_init failed\n");
		goto out_wdev;
	}

	wdev->iftype = NL80211_IFTYPE_STATION; /* TODO */
	/* default monitor channel */
	ch = wdev->wiphy->bands[NL80211_BAND_60GHZ]->channels;
	cfg80211_chandef_create(&wil->monitor_chandef, ch, NL80211_CHAN_NO_HT);

	ndev = alloc_netdev(0, "wlan%d", NET_NAME_UNKNOWN, wil_dev_setup);
	if (!ndev) {
		dev_err(dev, "alloc_netdev_mqs failed\n");
		rc = -ENOMEM;
		goto out_priv;
	}

	ndev->netdev_ops = &wil_netdev_ops;
	wil_set_ethtoolops(ndev);
	ndev->ieee80211_ptr = wdev;
	ndev->hw_features = NETIF_F_HW_CSUM | NETIF_F_RXCSUM |
			    NETIF_F_SG | NETIF_F_GRO |
			    NETIF_F_TSO | NETIF_F_TSO6 |
			    NETIF_F_RXHASH;

	ndev->features |= ndev->hw_features;
	SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy));
	wdev->netdev = ndev;

	return wil;

 out_priv:
	wil_priv_deinit(wil);

 out_wdev:
	wil_wdev_free(wil);

	return ERR_PTR(rc);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vladimir Kondratiev
236
89.39%
7
46.67%
Kirshenbaum Erez
13
4.92%
1
6.67%
Lior David
8
3.03%
2
13.33%
Vladimir Shulman
3
1.14%
2
13.33%
Tom Gundersen
2
0.76%
1
6.67%
Johannes Berg
1
0.38%
1
6.67%
Lazar Alexei
1
0.38%
1
6.67%
Total
264
100.00%
15
100.00%



void wil_if_free(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);

	wil_dbg_misc(wil, "if_free\n");

	if (!ndev)
		return;

	wil_priv_deinit(wil);

	wil_to_ndev(wil) = NULL;
	free_netdev(ndev);

	wil_wdev_free(wil);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Vladimir Kondratiev
54
98.18%
3
75.00%
Lazar Alexei
1
1.82%
1
25.00%
Total
55
100.00%
4
100.00%



int wil_if_add(struct wil6210_priv *wil)
{
	struct wireless_dev *wdev = wil_to_wdev(wil);
	struct wiphy *wiphy = wdev->wiphy;
	struct net_device *ndev = wil_to_ndev(wil);
	int rc;

	wil_dbg_misc(wil, "entered");

	strlcpy(wiphy->fw_version, wil->fw_version, sizeof(wiphy->fw_version));

	rc = wiphy_register(wiphy);
	if (rc < 0) {
		wil_err(wil, "failed to register wiphy, err %d\n", rc);
		return rc;
	}

	netif_napi_add(ndev, &wil->napi_rx, wil6210_netdev_poll_rx,
		       WIL6210_NAPI_BUDGET);
	netif_tx_napi_add(ndev, &wil->napi_tx, wil6210_netdev_poll_tx,
			  WIL6210_NAPI_BUDGET);

	wil_update_net_queues_bh(wil, NULL, true);

	rc = register_netdev(ndev);
	if (rc < 0) {
		dev_err(&ndev->dev, "Failed to register netdev: %d\n", rc);
		goto out_wiphy;
	}

	return 0;

out_wiphy:
	wiphy_unregister(wdev->wiphy);
	return rc;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Lior David
110
62.50%
2
40.00%
Vladimir Kondratiev
60
34.09%
2
40.00%
Dedy Lansky
6
3.41%
1
20.00%
Total
176
100.00%
5
100.00%



void wil_if_remove(struct wil6210_priv *wil)
{
	struct net_device *ndev = wil_to_ndev(wil);
	struct wireless_dev *wdev = wil_to_wdev(wil);

	wil_dbg_misc(wil, "if_remove\n");

	unregister_netdev(ndev);
	wiphy_unregister(wdev->wiphy);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Vladimir Kondratiev
31
63.27%
2
50.00%
Lior David
17
34.69%
1
25.00%
Lazar Alexei
1
2.04%
1
25.00%
Total
49
100.00%
4
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Vladimir Kondratiev
720
72.36%
12
42.86%
Lior David
135
13.57%
4
14.29%
Lazar Alexei
56
5.63%
2
7.14%
Vladimir Shulman
25
2.51%
2
7.14%
Maya Erez
18
1.81%
1
3.57%
Dedy Lansky
16
1.61%
2
7.14%
Kirshenbaum Erez
13
1.31%
1
3.57%
Jarod Wilson
6
0.60%
1
3.57%
Eric Dumazet
3
0.30%
1
3.57%
Tom Gundersen
2
0.20%
1
3.57%
Johannes Berg
1
0.10%
1
3.57%
Total
995
100.00%
28
100.00%
Directory: drivers/net/wireless/ath/wil6210

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