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35#include <linux/pci.h>
36#include <linux/ip.h>
37#include <linux/tcp.h>
38#include <linux/netdevice.h>
39#include <linux/etherdevice.h>
40#include <linux/ethtool.h>
41#include <linux/mdio.h>
42#include <linux/interrupt.h>
43#include <asm/byteorder.h>
44
45#include "alx.h"
46#include "reg.h"
47#include "hw.h"
48
49
50
51
52
53static const char alx_gstrings_stats[][ETH_GSTRING_LEN] = {
54 "rx_packets",
55 "rx_bcast_packets",
56 "rx_mcast_packets",
57 "rx_pause_packets",
58 "rx_ctrl_packets",
59 "rx_fcs_errors",
60 "rx_length_errors",
61 "rx_bytes",
62 "rx_runt_packets",
63 "rx_fragments",
64 "rx_64B_or_less_packets",
65 "rx_65B_to_127B_packets",
66 "rx_128B_to_255B_packets",
67 "rx_256B_to_511B_packets",
68 "rx_512B_to_1023B_packets",
69 "rx_1024B_to_1518B_packets",
70 "rx_1519B_to_mtu_packets",
71 "rx_oversize_packets",
72 "rx_rxf_ov_drop_packets",
73 "rx_rrd_ov_drop_packets",
74 "rx_align_errors",
75 "rx_bcast_bytes",
76 "rx_mcast_bytes",
77 "rx_address_errors",
78 "tx_packets",
79 "tx_bcast_packets",
80 "tx_mcast_packets",
81 "tx_pause_packets",
82 "tx_exc_defer_packets",
83 "tx_ctrl_packets",
84 "tx_defer_packets",
85 "tx_bytes",
86 "tx_64B_or_less_packets",
87 "tx_65B_to_127B_packets",
88 "tx_128B_to_255B_packets",
89 "tx_256B_to_511B_packets",
90 "tx_512B_to_1023B_packets",
91 "tx_1024B_to_1518B_packets",
92 "tx_1519B_to_mtu_packets",
93 "tx_single_collision",
94 "tx_multiple_collisions",
95 "tx_late_collision",
96 "tx_abort_collision",
97 "tx_underrun",
98 "tx_trd_eop",
99 "tx_length_errors",
100 "tx_trunc_packets",
101 "tx_bcast_bytes",
102 "tx_mcast_bytes",
103 "tx_update",
104};
105
106#define ALX_NUM_STATS ARRAY_SIZE(alx_gstrings_stats)
107
108
109static u32 alx_get_supported_speeds(struct alx_hw *hw)
110{
111 u32 supported = SUPPORTED_10baseT_Half |
112 SUPPORTED_10baseT_Full |
113 SUPPORTED_100baseT_Half |
114 SUPPORTED_100baseT_Full;
115
116 if (alx_hw_giga(hw))
117 supported |= SUPPORTED_1000baseT_Full;
118
119 BUILD_BUG_ON(SUPPORTED_10baseT_Half != ADVERTISED_10baseT_Half);
120 BUILD_BUG_ON(SUPPORTED_10baseT_Full != ADVERTISED_10baseT_Full);
121 BUILD_BUG_ON(SUPPORTED_100baseT_Half != ADVERTISED_100baseT_Half);
122 BUILD_BUG_ON(SUPPORTED_100baseT_Full != ADVERTISED_100baseT_Full);
123 BUILD_BUG_ON(SUPPORTED_1000baseT_Full != ADVERTISED_1000baseT_Full);
124
125 return supported;
126}
127
128static int alx_get_link_ksettings(struct net_device *netdev,
129 struct ethtool_link_ksettings *cmd)
130{
131 struct alx_priv *alx = netdev_priv(netdev);
132 struct alx_hw *hw = &alx->hw;
133 u32 supported, advertising;
134
135 supported = SUPPORTED_Autoneg |
136 SUPPORTED_TP |
137 SUPPORTED_Pause |
138 SUPPORTED_Asym_Pause;
139 if (alx_hw_giga(hw))
140 supported |= SUPPORTED_1000baseT_Full;
141 supported |= alx_get_supported_speeds(hw);
142
143 advertising = ADVERTISED_TP;
144 if (hw->adv_cfg & ADVERTISED_Autoneg)
145 advertising |= hw->adv_cfg;
146
147 cmd->base.port = PORT_TP;
148 cmd->base.phy_address = 0;
149
150 if (hw->adv_cfg & ADVERTISED_Autoneg)
151 cmd->base.autoneg = AUTONEG_ENABLE;
152 else
153 cmd->base.autoneg = AUTONEG_DISABLE;
154
155 if (hw->flowctrl & ALX_FC_ANEG && hw->adv_cfg & ADVERTISED_Autoneg) {
156 if (hw->flowctrl & ALX_FC_RX) {
157 advertising |= ADVERTISED_Pause;
158
159 if (!(hw->flowctrl & ALX_FC_TX))
160 advertising |= ADVERTISED_Asym_Pause;
161 } else if (hw->flowctrl & ALX_FC_TX) {
162 advertising |= ADVERTISED_Asym_Pause;
163 }
164 }
165
166 mutex_lock(&alx->mtx);
167 cmd->base.speed = hw->link_speed;
168 cmd->base.duplex = hw->duplex;
169 mutex_unlock(&alx->mtx);
170
171 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
172 supported);
173 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
174 advertising);
175
176 return 0;
177}
178
179static int alx_set_link_ksettings(struct net_device *netdev,
180 const struct ethtool_link_ksettings *cmd)
181{
182 struct alx_priv *alx = netdev_priv(netdev);
183 struct alx_hw *hw = &alx->hw;
184 u32 adv_cfg;
185 u32 advertising;
186 int ret;
187
188 ethtool_convert_link_mode_to_legacy_u32(&advertising,
189 cmd->link_modes.advertising);
190
191 if (cmd->base.autoneg == AUTONEG_ENABLE) {
192 if (advertising & ~alx_get_supported_speeds(hw))
193 return -EINVAL;
194 adv_cfg = advertising | ADVERTISED_Autoneg;
195 } else {
196 adv_cfg = alx_speed_to_ethadv(cmd->base.speed,
197 cmd->base.duplex);
198
199 if (!adv_cfg || adv_cfg == ADVERTISED_1000baseT_Full)
200 return -EINVAL;
201 }
202
203 hw->adv_cfg = adv_cfg;
204
205 mutex_lock(&alx->mtx);
206 ret = alx_setup_speed_duplex(hw, adv_cfg, hw->flowctrl);
207 mutex_unlock(&alx->mtx);
208
209 return ret;
210}
211
212static void alx_get_pauseparam(struct net_device *netdev,
213 struct ethtool_pauseparam *pause)
214{
215 struct alx_priv *alx = netdev_priv(netdev);
216 struct alx_hw *hw = &alx->hw;
217
218 mutex_lock(&alx->mtx);
219 pause->autoneg = !!(hw->flowctrl & ALX_FC_ANEG &&
220 hw->adv_cfg & ADVERTISED_Autoneg);
221 pause->tx_pause = !!(hw->flowctrl & ALX_FC_TX);
222 pause->rx_pause = !!(hw->flowctrl & ALX_FC_RX);
223 mutex_unlock(&alx->mtx);
224}
225
226
227static int alx_set_pauseparam(struct net_device *netdev,
228 struct ethtool_pauseparam *pause)
229{
230 struct alx_priv *alx = netdev_priv(netdev);
231 struct alx_hw *hw = &alx->hw;
232 int err = 0;
233 bool reconfig_phy = false;
234 u8 fc = 0;
235
236 if (pause->tx_pause)
237 fc |= ALX_FC_TX;
238 if (pause->rx_pause)
239 fc |= ALX_FC_RX;
240 if (pause->autoneg)
241 fc |= ALX_FC_ANEG;
242
243 mutex_lock(&alx->mtx);
244
245
246 if (hw->adv_cfg & ADVERTISED_Autoneg) {
247 if (!((fc ^ hw->flowctrl) & ALX_FC_ANEG))
248 reconfig_phy = true;
249 if (fc & hw->flowctrl & ALX_FC_ANEG &&
250 (fc ^ hw->flowctrl) & (ALX_FC_RX | ALX_FC_TX))
251 reconfig_phy = true;
252 }
253
254 if (reconfig_phy) {
255 err = alx_setup_speed_duplex(hw, hw->adv_cfg, fc);
256 if (err) {
257 mutex_unlock(&alx->mtx);
258 return err;
259 }
260 }
261
262
263 if ((fc ^ hw->flowctrl) & (ALX_FC_RX | ALX_FC_TX))
264 alx_cfg_mac_flowcontrol(hw, fc);
265
266 hw->flowctrl = fc;
267 mutex_unlock(&alx->mtx);
268
269 return 0;
270}
271
272static u32 alx_get_msglevel(struct net_device *netdev)
273{
274 struct alx_priv *alx = netdev_priv(netdev);
275
276 return alx->msg_enable;
277}
278
279static void alx_set_msglevel(struct net_device *netdev, u32 data)
280{
281 struct alx_priv *alx = netdev_priv(netdev);
282
283 alx->msg_enable = data;
284}
285
286static void alx_get_ethtool_stats(struct net_device *netdev,
287 struct ethtool_stats *estats, u64 *data)
288{
289 struct alx_priv *alx = netdev_priv(netdev);
290 struct alx_hw *hw = &alx->hw;
291
292 spin_lock(&alx->stats_lock);
293
294 alx_update_hw_stats(hw);
295 BUILD_BUG_ON(sizeof(hw->stats) - offsetof(struct alx_hw_stats, rx_ok) <
296 ALX_NUM_STATS * sizeof(u64));
297 memcpy(data, &hw->stats.rx_ok, ALX_NUM_STATS * sizeof(u64));
298
299 spin_unlock(&alx->stats_lock);
300}
301
302static void alx_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
303{
304 switch (stringset) {
305 case ETH_SS_STATS:
306 memcpy(buf, &alx_gstrings_stats, sizeof(alx_gstrings_stats));
307 break;
308 default:
309 WARN_ON(1);
310 break;
311 }
312}
313
314static int alx_get_sset_count(struct net_device *netdev, int sset)
315{
316 switch (sset) {
317 case ETH_SS_STATS:
318 return ALX_NUM_STATS;
319 default:
320 return -EINVAL;
321 }
322}
323
324const struct ethtool_ops alx_ethtool_ops = {
325 .get_pauseparam = alx_get_pauseparam,
326 .set_pauseparam = alx_set_pauseparam,
327 .get_msglevel = alx_get_msglevel,
328 .set_msglevel = alx_set_msglevel,
329 .get_link = ethtool_op_get_link,
330 .get_strings = alx_get_strings,
331 .get_sset_count = alx_get_sset_count,
332 .get_ethtool_stats = alx_get_ethtool_stats,
333 .get_link_ksettings = alx_get_link_ksettings,
334 .set_link_ksettings = alx_set_link_ksettings,
335};
336
