1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Applied Micro X-Gene SoC Ethernet v2 Driver
4 *
5 * Copyright (c) 2017, Applied Micro Circuits Corporation
6 * Author(s): Iyappan Subramanian <isubramanian@apm.com>
7 * Keyur Chudgar <kchudgar@apm.com>
8 */
9
10#include "main.h"
11
12#define XGE_STAT(m) { #m, offsetof(struct xge_pdata, stats.m) }
13#define XGE_EXTD_STAT(m, n) \
14 { \
15 #m, \
16 n, \
17 0 \
18 }
19
20static const struct xge_gstrings_stats gstrings_stats[] = {
21 XGE_STAT(rx_packets),
22 XGE_STAT(tx_packets),
23 XGE_STAT(rx_bytes),
24 XGE_STAT(tx_bytes),
25 XGE_STAT(rx_errors)
26};
27
28static struct xge_gstrings_extd_stats gstrings_extd_stats[] = {
29 XGE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64),
30 XGE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127),
31 XGE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255),
32 XGE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511),
33 XGE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K),
34 XGE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX),
35 XGE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV),
36 XGE_EXTD_STAT(rx_fcs_error_cntr, RFCS),
37 XGE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA),
38 XGE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA),
39 XGE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF),
40 XGE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF),
41 XGE_EXTD_STAT(rx_unk_opcode_cntr, RXUO),
42 XGE_EXTD_STAT(rx_align_err_cntr, RALN),
43 XGE_EXTD_STAT(rx_frame_len_err_cntr, RFLR),
44 XGE_EXTD_STAT(rx_code_err_cntr, RCDE),
45 XGE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE),
46 XGE_EXTD_STAT(rx_undersize_pkt_cntr, RUND),
47 XGE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR),
48 XGE_EXTD_STAT(rx_fragments_cntr, RFRG),
49 XGE_EXTD_STAT(rx_jabber_cntr, RJBR),
50 XGE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP),
51 XGE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA),
52 XGE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA),
53 XGE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF),
54 XGE_EXTD_STAT(tx_defer_pkt_cntr, TDFR),
55 XGE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF),
56 XGE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL),
57 XGE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL),
58 XGE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL),
59 XGE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL),
60 XGE_EXTD_STAT(tx_total_col_cntr, TNCL),
61 XGE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH),
62 XGE_EXTD_STAT(tx_drop_frame_cntr, TDRP),
63 XGE_EXTD_STAT(tx_jabber_frame_cntr, TJBR),
64 XGE_EXTD_STAT(tx_fcs_error_cntr, TFCS),
65 XGE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF),
66 XGE_EXTD_STAT(tx_oversize_frame_cntr, TOVR),
67 XGE_EXTD_STAT(tx_undersize_frame_cntr, TUND),
68 XGE_EXTD_STAT(tx_fragments_cntr, TFRG)
69};
70
71#define XGE_STATS_LEN ARRAY_SIZE(gstrings_stats)
72#define XGE_EXTD_STATS_LEN ARRAY_SIZE(gstrings_extd_stats)
73
74static void xge_mac_get_extd_stats(struct xge_pdata *pdata)
75{
76 u32 data;
77 int i;
78
79 for (i = 0; i < XGE_EXTD_STATS_LEN; i++) {
80 data = xge_rd_csr(pdata, offset: gstrings_extd_stats[i].addr);
81 gstrings_extd_stats[i].value += data;
82 }
83}
84
85static void xge_get_drvinfo(struct net_device *ndev,
86 struct ethtool_drvinfo *info)
87{
88 struct xge_pdata *pdata = netdev_priv(dev: ndev);
89 struct platform_device *pdev = pdata->pdev;
90
91 strcpy(p: info->driver, q: "xgene-enet-v2");
92 sprintf(buf: info->bus_info, fmt: "%s", pdev->name);
93}
94
95static void xge_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
96{
97 u8 *p = data;
98 int i;
99
100 if (stringset != ETH_SS_STATS)
101 return;
102
103 for (i = 0; i < XGE_STATS_LEN; i++) {
104 memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
105 p += ETH_GSTRING_LEN;
106 }
107
108 for (i = 0; i < XGE_EXTD_STATS_LEN; i++) {
109 memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN);
110 p += ETH_GSTRING_LEN;
111 }
112}
113
114static int xge_get_sset_count(struct net_device *ndev, int sset)
115{
116 if (sset != ETH_SS_STATS)
117 return -EINVAL;
118
119 return XGE_STATS_LEN + XGE_EXTD_STATS_LEN;
120}
121
122static void xge_get_ethtool_stats(struct net_device *ndev,
123 struct ethtool_stats *dummy,
124 u64 *data)
125{
126 void *pdata = netdev_priv(dev: ndev);
127 int i;
128
129 for (i = 0; i < XGE_STATS_LEN; i++)
130 *data++ = *(u64 *)(pdata + gstrings_stats[i].offset);
131
132 xge_mac_get_extd_stats(pdata);
133
134 for (i = 0; i < XGE_EXTD_STATS_LEN; i++)
135 *data++ = gstrings_extd_stats[i].value;
136}
137
138static int xge_get_link_ksettings(struct net_device *ndev,
139 struct ethtool_link_ksettings *cmd)
140{
141 struct phy_device *phydev = ndev->phydev;
142
143 if (!phydev)
144 return -ENODEV;
145
146 phy_ethtool_ksettings_get(phydev, cmd);
147
148 return 0;
149}
150
151static int xge_set_link_ksettings(struct net_device *ndev,
152 const struct ethtool_link_ksettings *cmd)
153{
154 struct phy_device *phydev = ndev->phydev;
155
156 if (!phydev)
157 return -ENODEV;
158
159 return phy_ethtool_ksettings_set(phydev, cmd);
160}
161
162static const struct ethtool_ops xge_ethtool_ops = {
163 .get_drvinfo = xge_get_drvinfo,
164 .get_link = ethtool_op_get_link,
165 .get_strings = xge_get_strings,
166 .get_sset_count = xge_get_sset_count,
167 .get_ethtool_stats = xge_get_ethtool_stats,
168 .get_link_ksettings = xge_get_link_ksettings,
169 .set_link_ksettings = xge_set_link_ksettings,
170};
171
172void xge_set_ethtool_ops(struct net_device *ndev)
173{
174 ndev->ethtool_ops = &xge_ethtool_ops;
175}
176

source code of linux/drivers/net/ethernet/apm/xgene-v2/ethtool.c