1// SPDX-License-Identifier: GPL-2.0
2/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
3
4#include <linux/pci.h>
5#include <linux/phy.h>
6#include <linux/netdevice.h>
7
8#include "../libwx/wx_ethtool.h"
9#include "../libwx/wx_type.h"
10#include "../libwx/wx_lib.h"
11#include "../libwx/wx_hw.h"
12#include "ngbe_ethtool.h"
13#include "ngbe_type.h"
14
15static void ngbe_get_wol(struct net_device *netdev,
16 struct ethtool_wolinfo *wol)
17{
18 struct wx *wx = netdev_priv(dev: netdev);
19
20 if (!wx->wol_hw_supported)
21 return;
22 wol->supported = WAKE_MAGIC;
23 wol->wolopts = 0;
24 if (wx->wol & WX_PSR_WKUP_CTL_MAG)
25 wol->wolopts |= WAKE_MAGIC;
26}
27
28static int ngbe_set_wol(struct net_device *netdev,
29 struct ethtool_wolinfo *wol)
30{
31 struct wx *wx = netdev_priv(dev: netdev);
32 struct pci_dev *pdev = wx->pdev;
33
34 if (!wx->wol_hw_supported)
35 return -EOPNOTSUPP;
36
37 wx->wol = 0;
38 if (wol->wolopts & WAKE_MAGIC)
39 wx->wol = WX_PSR_WKUP_CTL_MAG;
40 netdev->wol_enabled = !!(wx->wol);
41 wr32(wx, WX_PSR_WKUP_CTL, wx->wol);
42 device_set_wakeup_enable(dev: &pdev->dev, enable: netdev->wol_enabled);
43
44 return 0;
45}
46
47static int ngbe_set_ringparam(struct net_device *netdev,
48 struct ethtool_ringparam *ring,
49 struct kernel_ethtool_ringparam *kernel_ring,
50 struct netlink_ext_ack *extack)
51{
52 struct wx *wx = netdev_priv(dev: netdev);
53 u32 new_rx_count, new_tx_count;
54 struct wx_ring *temp_ring;
55 int i;
56
57 new_tx_count = clamp_t(u32, ring->tx_pending, WX_MIN_TXD, WX_MAX_TXD);
58 new_tx_count = ALIGN(new_tx_count, WX_REQ_TX_DESCRIPTOR_MULTIPLE);
59
60 new_rx_count = clamp_t(u32, ring->rx_pending, WX_MIN_RXD, WX_MAX_RXD);
61 new_rx_count = ALIGN(new_rx_count, WX_REQ_RX_DESCRIPTOR_MULTIPLE);
62
63 if (new_tx_count == wx->tx_ring_count &&
64 new_rx_count == wx->rx_ring_count)
65 return 0;
66
67 if (!netif_running(dev: wx->netdev)) {
68 for (i = 0; i < wx->num_tx_queues; i++)
69 wx->tx_ring[i]->count = new_tx_count;
70 for (i = 0; i < wx->num_rx_queues; i++)
71 wx->rx_ring[i]->count = new_rx_count;
72 wx->tx_ring_count = new_tx_count;
73 wx->rx_ring_count = new_rx_count;
74
75 return 0;
76 }
77
78 /* allocate temporary buffer to store rings in */
79 i = max_t(int, wx->num_tx_queues, wx->num_rx_queues);
80 temp_ring = kvmalloc_array(n: i, size: sizeof(struct wx_ring), GFP_KERNEL);
81 if (!temp_ring)
82 return -ENOMEM;
83
84 ngbe_down(wx);
85
86 wx_set_ring(wx, new_tx_count, new_rx_count, temp_ring);
87 kvfree(addr: temp_ring);
88
89 wx_configure(wx);
90 ngbe_up(wx);
91
92 return 0;
93}
94
95static int ngbe_set_channels(struct net_device *dev,
96 struct ethtool_channels *ch)
97{
98 int err;
99
100 err = wx_set_channels(dev, ch);
101 if (err < 0)
102 return err;
103
104 /* use setup TC to update any traffic class queue mapping */
105 return ngbe_setup_tc(dev, tc: netdev_get_num_tc(dev));
106}
107
108static const struct ethtool_ops ngbe_ethtool_ops = {
109 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
110 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ,
111 .get_drvinfo = wx_get_drvinfo,
112 .get_link = ethtool_op_get_link,
113 .get_link_ksettings = wx_get_link_ksettings,
114 .set_link_ksettings = wx_set_link_ksettings,
115 .nway_reset = wx_nway_reset,
116 .get_wol = ngbe_get_wol,
117 .set_wol = ngbe_set_wol,
118 .get_sset_count = wx_get_sset_count,
119 .get_strings = wx_get_strings,
120 .get_ethtool_stats = wx_get_ethtool_stats,
121 .get_eth_mac_stats = wx_get_mac_stats,
122 .get_pause_stats = wx_get_pause_stats,
123 .get_pauseparam = wx_get_pauseparam,
124 .set_pauseparam = wx_set_pauseparam,
125 .get_ringparam = wx_get_ringparam,
126 .set_ringparam = ngbe_set_ringparam,
127 .get_coalesce = wx_get_coalesce,
128 .set_coalesce = wx_set_coalesce,
129 .get_channels = wx_get_channels,
130 .set_channels = ngbe_set_channels,
131 .get_msglevel = wx_get_msglevel,
132 .set_msglevel = wx_set_msglevel,
133};
134
135void ngbe_set_ethtool_ops(struct net_device *netdev)
136{
137 netdev->ethtool_ops = &ngbe_ethtool_ops;
138}
139

source code of linux/drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c