1 /*
2 * Applied Micro X-Gene SoC Ethernet v2 Driver
3 *
4 * Copyright (c) 2017, Applied Micro Circuits Corporation
5 * Author(s): Iyappan Subramanian <isubramanian@apm.com>
6 * Keyur Chudgar <kchudgar@apm.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include "main.h"
23
24 #define XGE_STAT(m) { #m, offsetof(struct xge_pdata, stats.m) }
25 #define XGE_EXTD_STAT(m, n) \
26 { \
27 #m, \
28 n, \
29 0 \
30 }
31
32 static const struct xge_gstrings_stats gstrings_stats[] = {
33 XGE_STAT(rx_packets),
34 XGE_STAT(tx_packets),
35 XGE_STAT(rx_bytes),
36 XGE_STAT(tx_bytes),
37 XGE_STAT(rx_errors)
38 };
39
40 static struct xge_gstrings_extd_stats gstrings_extd_stats[] = {
41 XGE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64),
42 XGE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127),
43 XGE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255),
44 XGE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511),
45 XGE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K),
46 XGE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX),
47 XGE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV),
48 XGE_EXTD_STAT(rx_fcs_error_cntr, RFCS),
49 XGE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA),
50 XGE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA),
51 XGE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF),
52 XGE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF),
53 XGE_EXTD_STAT(rx_unk_opcode_cntr, RXUO),
54 XGE_EXTD_STAT(rx_align_err_cntr, RALN),
55 XGE_EXTD_STAT(rx_frame_len_err_cntr, RFLR),
56 XGE_EXTD_STAT(rx_code_err_cntr, RCDE),
57 XGE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE),
58 XGE_EXTD_STAT(rx_undersize_pkt_cntr, RUND),
59 XGE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR),
60 XGE_EXTD_STAT(rx_fragments_cntr, RFRG),
61 XGE_EXTD_STAT(rx_jabber_cntr, RJBR),
62 XGE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP),
63 XGE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA),
64 XGE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA),
65 XGE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF),
66 XGE_EXTD_STAT(tx_defer_pkt_cntr, TDFR),
67 XGE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF),
68 XGE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL),
69 XGE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL),
70 XGE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL),
71 XGE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL),
72 XGE_EXTD_STAT(tx_total_col_cntr, TNCL),
73 XGE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH),
74 XGE_EXTD_STAT(tx_drop_frame_cntr, TDRP),
75 XGE_EXTD_STAT(tx_jabber_frame_cntr, TJBR),
76 XGE_EXTD_STAT(tx_fcs_error_cntr, TFCS),
77 XGE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF),
78 XGE_EXTD_STAT(tx_oversize_frame_cntr, TOVR),
79 XGE_EXTD_STAT(tx_undersize_frame_cntr, TUND),
80 XGE_EXTD_STAT(tx_fragments_cntr, TFRG)
81 };
82
83 #define XGE_STATS_LEN ARRAY_SIZE(gstrings_stats)
84 #define XGE_EXTD_STATS_LEN ARRAY_SIZE(gstrings_extd_stats)
85
xge_mac_get_extd_stats(struct xge_pdata * pdata)86 static void xge_mac_get_extd_stats(struct xge_pdata *pdata)
87 {
88 u32 data;
89 int i;
90
91 for (i = 0; i < XGE_EXTD_STATS_LEN; i++) {
92 data = xge_rd_csr(pdata, gstrings_extd_stats[i].addr);
93 gstrings_extd_stats[i].value += data;
94 }
95 }
96
xge_get_drvinfo(struct net_device * ndev,struct ethtool_drvinfo * info)97 static void xge_get_drvinfo(struct net_device *ndev,
98 struct ethtool_drvinfo *info)
99 {
100 struct xge_pdata *pdata = netdev_priv(ndev);
101 struct platform_device *pdev = pdata->pdev;
102
103 strcpy(info->driver, "xgene-enet-v2");
104 strcpy(info->version, XGENE_ENET_V2_VERSION);
105 snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A");
106 sprintf(info->bus_info, "%s", pdev->name);
107 }
108
xge_get_strings(struct net_device * ndev,u32 stringset,u8 * data)109 static void xge_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
110 {
111 u8 *p = data;
112 int i;
113
114 if (stringset != ETH_SS_STATS)
115 return;
116
117 for (i = 0; i < XGE_STATS_LEN; i++) {
118 memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
119 p += ETH_GSTRING_LEN;
120 }
121
122 for (i = 0; i < XGE_EXTD_STATS_LEN; i++) {
123 memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN);
124 p += ETH_GSTRING_LEN;
125 }
126 }
127
xge_get_sset_count(struct net_device * ndev,int sset)128 static int xge_get_sset_count(struct net_device *ndev, int sset)
129 {
130 if (sset != ETH_SS_STATS)
131 return -EINVAL;
132
133 return XGE_STATS_LEN + XGE_EXTD_STATS_LEN;
134 }
135
xge_get_ethtool_stats(struct net_device * ndev,struct ethtool_stats * dummy,u64 * data)136 static void xge_get_ethtool_stats(struct net_device *ndev,
137 struct ethtool_stats *dummy,
138 u64 *data)
139 {
140 void *pdata = netdev_priv(ndev);
141 int i;
142
143 for (i = 0; i < XGE_STATS_LEN; i++)
144 *data++ = *(u64 *)(pdata + gstrings_stats[i].offset);
145
146 xge_mac_get_extd_stats(pdata);
147
148 for (i = 0; i < XGE_EXTD_STATS_LEN; i++)
149 *data++ = gstrings_extd_stats[i].value;
150 }
151
xge_get_link_ksettings(struct net_device * ndev,struct ethtool_link_ksettings * cmd)152 static int xge_get_link_ksettings(struct net_device *ndev,
153 struct ethtool_link_ksettings *cmd)
154 {
155 struct phy_device *phydev = ndev->phydev;
156
157 if (!phydev)
158 return -ENODEV;
159
160 phy_ethtool_ksettings_get(phydev, cmd);
161
162 return 0;
163 }
164
xge_set_link_ksettings(struct net_device * ndev,const struct ethtool_link_ksettings * cmd)165 static int xge_set_link_ksettings(struct net_device *ndev,
166 const struct ethtool_link_ksettings *cmd)
167 {
168 struct phy_device *phydev = ndev->phydev;
169
170 if (!phydev)
171 return -ENODEV;
172
173 return phy_ethtool_ksettings_set(phydev, cmd);
174 }
175
176 static const struct ethtool_ops xge_ethtool_ops = {
177 .get_drvinfo = xge_get_drvinfo,
178 .get_link = ethtool_op_get_link,
179 .get_strings = xge_get_strings,
180 .get_sset_count = xge_get_sset_count,
181 .get_ethtool_stats = xge_get_ethtool_stats,
182 .get_link_ksettings = xge_get_link_ksettings,
183 .set_link_ksettings = xge_set_link_ksettings,
184 };
185
xge_set_ethtool_ops(struct net_device * ndev)186 void xge_set_ethtool_ops(struct net_device *ndev)
187 {
188 ndev->ethtool_ops = &xge_ethtool_ops;
189 }
190
