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1/*
2 * Copyright (c) 2014,2017 Qualcomm Atheros, Inc.
3 * Copyright (c) 2018, The Linux Foundation. All rights reserved.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18#include <linux/etherdevice.h>
19#include <linux/pci.h>
20#include <linux/rtnetlink.h>
21#include <net/cfg80211.h>
22
23#include "wil6210.h"
24
25static int wil_ethtoolops_begin(struct net_device *ndev)
26{
27 struct wil6210_priv *wil = ndev_to_wil(ndev);
28
29 mutex_lock(&wil->mutex);
30
31 wil_dbg_misc(wil, "ethtoolops_begin\n");
32
33 return 0;
34}
35
36static void wil_ethtoolops_complete(struct net_device *ndev)
37{
38 struct wil6210_priv *wil = ndev_to_wil(ndev);
39
40 wil_dbg_misc(wil, "ethtoolops_complete\n");
41
42 mutex_unlock(&wil->mutex);
43}
44
45static int wil_ethtoolops_get_coalesce(struct net_device *ndev,
46 struct ethtool_coalesce *cp)
47{
48 struct wil6210_priv *wil = ndev_to_wil(ndev);
49 u32 tx_itr_en, tx_itr_val = 0;
50 u32 rx_itr_en, rx_itr_val = 0;
51 int ret;
52
53 wil_dbg_misc(wil, "ethtoolops_get_coalesce\n");
54
55 ret = wil_pm_runtime_get(wil);
56 if (ret < 0)
57 return ret;
58
59 tx_itr_en = wil_r(wil, RGF_DMA_ITR_TX_CNT_CTL);
60 if (tx_itr_en & BIT_DMA_ITR_TX_CNT_CTL_EN)
61 tx_itr_val = wil_r(wil, RGF_DMA_ITR_TX_CNT_TRSH);
62
63 rx_itr_en = wil_r(wil, RGF_DMA_ITR_RX_CNT_CTL);
64 if (rx_itr_en & BIT_DMA_ITR_RX_CNT_CTL_EN)
65 rx_itr_val = wil_r(wil, RGF_DMA_ITR_RX_CNT_TRSH);
66
67 wil_pm_runtime_put(wil);
68
69 cp->tx_coalesce_usecs = tx_itr_val;
70 cp->rx_coalesce_usecs = rx_itr_val;
71 return 0;
72}
73
74static int wil_ethtoolops_set_coalesce(struct net_device *ndev,
75 struct ethtool_coalesce *cp)
76{
77 struct wil6210_priv *wil = ndev_to_wil(ndev);
78 struct wireless_dev *wdev = ndev->ieee80211_ptr;
79 int ret;
80
81 wil_dbg_misc(wil, "ethtoolops_set_coalesce: rx %d usec, tx %d usec\n",
82 cp->rx_coalesce_usecs, cp->tx_coalesce_usecs);
83
84 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
85 wil_dbg_misc(wil, "No IRQ coalescing in monitor mode\n");
86 return -EINVAL;
87 }
88
89 /* only @rx_coalesce_usecs and @tx_coalesce_usecs supported,
90 * ignore other parameters
91 */
92
93 if (cp->rx_coalesce_usecs > WIL6210_ITR_TRSH_MAX ||
94 cp->tx_coalesce_usecs > WIL6210_ITR_TRSH_MAX)
95 goto out_bad;
96
97 wil->tx_max_burst_duration = cp->tx_coalesce_usecs;
98 wil->rx_max_burst_duration = cp->rx_coalesce_usecs;
99
100 ret = wil_pm_runtime_get(wil);
101 if (ret < 0)
102 return ret;
103
104 wil_configure_interrupt_moderation(wil);
105
106 wil_pm_runtime_put(wil);
107
108 return 0;
109
110out_bad:
111 wil_dbg_misc(wil, "Unsupported coalescing params. Raw command:\n");
112 print_hex_dump_debug("DBG[MISC] coal ", DUMP_PREFIX_OFFSET, 16, 4,
113 cp, sizeof(*cp), false);
114 return -EINVAL;
115}
116
117static const struct ethtool_ops wil_ethtool_ops = {
118 .begin = wil_ethtoolops_begin,
119 .complete = wil_ethtoolops_complete,
120 .get_drvinfo = cfg80211_get_drvinfo,
121 .get_coalesce = wil_ethtoolops_get_coalesce,
122 .set_coalesce = wil_ethtoolops_set_coalesce,
123};
124
125void wil_set_ethtoolops(struct net_device *ndev)
126{
127 ndev->ethtool_ops = &wil_ethtool_ops;
128}
1/*
2 * Copyright (c) 2014 Qualcomm Atheros, Inc.
3 *
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.
7 *
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.
15 */
16
17#include <linux/etherdevice.h>
18#include <linux/pci.h>
19#include <linux/rtnetlink.h>
20#include <net/cfg80211.h>
21
22#include "wil6210.h"
23
24static int wil_ethtoolops_begin(struct net_device *ndev)
25{
26 struct wil6210_priv *wil = ndev_to_wil(ndev);
27
28 mutex_lock(&wil->mutex);
29
30 wil_dbg_misc(wil, "%s()\n", __func__);
31
32 return 0;
33}
34
35static void wil_ethtoolops_complete(struct net_device *ndev)
36{
37 struct wil6210_priv *wil = ndev_to_wil(ndev);
38
39 wil_dbg_misc(wil, "%s()\n", __func__);
40
41 mutex_unlock(&wil->mutex);
42}
43
44static int wil_ethtoolops_get_coalesce(struct net_device *ndev,
45 struct ethtool_coalesce *cp)
46{
47 struct wil6210_priv *wil = ndev_to_wil(ndev);
48 u32 tx_itr_en, tx_itr_val = 0;
49 u32 rx_itr_en, rx_itr_val = 0;
50
51 wil_dbg_misc(wil, "%s()\n", __func__);
52
53 tx_itr_en = wil_r(wil, RGF_DMA_ITR_TX_CNT_CTL);
54 if (tx_itr_en & BIT_DMA_ITR_TX_CNT_CTL_EN)
55 tx_itr_val = wil_r(wil, RGF_DMA_ITR_TX_CNT_TRSH);
56
57 rx_itr_en = wil_r(wil, RGF_DMA_ITR_RX_CNT_CTL);
58 if (rx_itr_en & BIT_DMA_ITR_RX_CNT_CTL_EN)
59 rx_itr_val = wil_r(wil, RGF_DMA_ITR_RX_CNT_TRSH);
60
61 cp->tx_coalesce_usecs = tx_itr_val;
62 cp->rx_coalesce_usecs = rx_itr_val;
63 return 0;
64}
65
66static int wil_ethtoolops_set_coalesce(struct net_device *ndev,
67 struct ethtool_coalesce *cp)
68{
69 struct wil6210_priv *wil = ndev_to_wil(ndev);
70
71 wil_dbg_misc(wil, "%s(rx %d usec, tx %d usec)\n", __func__,
72 cp->rx_coalesce_usecs, cp->tx_coalesce_usecs);
73
74 if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR) {
75 wil_dbg_misc(wil, "No IRQ coalescing in monitor mode\n");
76 return -EINVAL;
77 }
78
79 /* only @rx_coalesce_usecs and @tx_coalesce_usecs supported,
80 * ignore other parameters
81 */
82
83 if (cp->rx_coalesce_usecs > WIL6210_ITR_TRSH_MAX ||
84 cp->tx_coalesce_usecs > WIL6210_ITR_TRSH_MAX)
85 goto out_bad;
86
87 wil->tx_max_burst_duration = cp->tx_coalesce_usecs;
88 wil->rx_max_burst_duration = cp->rx_coalesce_usecs;
89 wil_configure_interrupt_moderation(wil);
90
91 return 0;
92
93out_bad:
94 wil_dbg_misc(wil, "Unsupported coalescing params. Raw command:\n");
95 print_hex_dump_debug("DBG[MISC] coal ", DUMP_PREFIX_OFFSET, 16, 4,
96 cp, sizeof(*cp), false);
97 return -EINVAL;
98}
99
100static const struct ethtool_ops wil_ethtool_ops = {
101 .begin = wil_ethtoolops_begin,
102 .complete = wil_ethtoolops_complete,
103 .get_drvinfo = cfg80211_get_drvinfo,
104 .get_coalesce = wil_ethtoolops_get_coalesce,
105 .set_coalesce = wil_ethtoolops_set_coalesce,
106};
107
108void wil_set_ethtoolops(struct net_device *ndev)
109{
110 ndev->ethtool_ops = &wil_ethtool_ops;
111}