1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Copyright (c) 2007 Freescale Semiconductor, Inc. All rights reserved. |
4 | * |
5 | * Description: QE UCC Gigabit Ethernet Ethtool API Set |
6 | * |
7 | * Author: Li Yang <leoli@freescale.com> |
8 | * |
9 | * Limitation: |
10 | * Can only get/set settings of the first queue. |
11 | * Need to re-open the interface manually after changing some parameters. |
12 | */ |
13 | |
14 | #include <linux/kernel.h> |
15 | #include <linux/errno.h> |
16 | #include <linux/stddef.h> |
17 | #include <linux/interrupt.h> |
18 | #include <linux/netdevice.h> |
19 | #include <linux/etherdevice.h> |
20 | #include <linux/skbuff.h> |
21 | #include <linux/spinlock.h> |
22 | #include <linux/mm.h> |
23 | #include <linux/delay.h> |
24 | #include <linux/dma-mapping.h> |
25 | #include <linux/ethtool.h> |
26 | #include <linux/mii.h> |
27 | #include <linux/phy.h> |
28 | |
29 | #include <asm/io.h> |
30 | #include <asm/irq.h> |
31 | #include <linux/uaccess.h> |
32 | #include <asm/types.h> |
33 | |
34 | #include "ucc_geth.h" |
35 | |
36 | static const char hw_stat_gstrings[][ETH_GSTRING_LEN] = { |
37 | "tx-64-frames" , |
38 | "tx-65-127-frames" , |
39 | "tx-128-255-frames" , |
40 | "rx-64-frames" , |
41 | "rx-65-127-frames" , |
42 | "rx-128-255-frames" , |
43 | "tx-bytes-ok" , |
44 | "tx-pause-frames" , |
45 | "tx-multicast-frames" , |
46 | "tx-broadcast-frames" , |
47 | "rx-frames" , |
48 | "rx-bytes-ok" , |
49 | "rx-bytes-all" , |
50 | "rx-multicast-frames" , |
51 | "rx-broadcast-frames" , |
52 | "stats-counter-carry" , |
53 | "stats-counter-mask" , |
54 | "rx-dropped-frames" , |
55 | }; |
56 | |
57 | static const char tx_fw_stat_gstrings[][ETH_GSTRING_LEN] = { |
58 | "tx-single-collision" , |
59 | "tx-multiple-collision" , |
60 | "tx-late-collision" , |
61 | "tx-aborted-frames" , |
62 | "tx-lost-frames" , |
63 | "tx-carrier-sense-errors" , |
64 | "tx-frames-ok" , |
65 | "tx-excessive-differ-frames" , |
66 | "tx-256-511-frames" , |
67 | "tx-512-1023-frames" , |
68 | "tx-1024-1518-frames" , |
69 | "tx-jumbo-frames" , |
70 | }; |
71 | |
72 | static const char rx_fw_stat_gstrings[][ETH_GSTRING_LEN] = { |
73 | "rx-crc-errors" , |
74 | "rx-alignment-errors" , |
75 | "rx-in-range-length-errors" , |
76 | "rx-out-of-range-length-errors" , |
77 | "rx-too-long-frames" , |
78 | "rx-runt" , |
79 | "rx-very-long-event" , |
80 | "rx-symbol-errors" , |
81 | "rx-busy-drop-frames" , |
82 | "reserved" , |
83 | "reserved" , |
84 | "rx-mismatch-drop-frames" , |
85 | "rx-small-than-64" , |
86 | "rx-256-511-frames" , |
87 | "rx-512-1023-frames" , |
88 | "rx-1024-1518-frames" , |
89 | "rx-jumbo-frames" , |
90 | "rx-mac-error-loss" , |
91 | "rx-pause-frames" , |
92 | "reserved" , |
93 | "rx-vlan-removed" , |
94 | "rx-vlan-replaced" , |
95 | "rx-vlan-inserted" , |
96 | "rx-ip-checksum-errors" , |
97 | }; |
98 | |
99 | #define UEC_HW_STATS_LEN ARRAY_SIZE(hw_stat_gstrings) |
100 | #define UEC_TX_FW_STATS_LEN ARRAY_SIZE(tx_fw_stat_gstrings) |
101 | #define UEC_RX_FW_STATS_LEN ARRAY_SIZE(rx_fw_stat_gstrings) |
102 | |
103 | static int |
104 | uec_get_ksettings(struct net_device *netdev, struct ethtool_link_ksettings *cmd) |
105 | { |
106 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
107 | struct phy_device *phydev = ugeth->phydev; |
108 | |
109 | if (!phydev) |
110 | return -ENODEV; |
111 | |
112 | phy_ethtool_ksettings_get(phydev, cmd); |
113 | |
114 | return 0; |
115 | } |
116 | |
117 | static int |
118 | uec_set_ksettings(struct net_device *netdev, |
119 | const struct ethtool_link_ksettings *cmd) |
120 | { |
121 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
122 | struct phy_device *phydev = ugeth->phydev; |
123 | |
124 | if (!phydev) |
125 | return -ENODEV; |
126 | |
127 | return phy_ethtool_ksettings_set(phydev, cmd); |
128 | } |
129 | |
130 | static void |
131 | uec_get_pauseparam(struct net_device *netdev, |
132 | struct ethtool_pauseparam *pause) |
133 | { |
134 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
135 | |
136 | pause->autoneg = ugeth->phydev->autoneg; |
137 | |
138 | if (ugeth->ug_info->receiveFlowControl) |
139 | pause->rx_pause = 1; |
140 | if (ugeth->ug_info->transmitFlowControl) |
141 | pause->tx_pause = 1; |
142 | } |
143 | |
144 | static int |
145 | uec_set_pauseparam(struct net_device *netdev, |
146 | struct ethtool_pauseparam *pause) |
147 | { |
148 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
149 | int ret = 0; |
150 | |
151 | ugeth->ug_info->receiveFlowControl = pause->rx_pause; |
152 | ugeth->ug_info->transmitFlowControl = pause->tx_pause; |
153 | |
154 | if (ugeth->phydev->autoneg) { |
155 | if (netif_running(dev: netdev)) { |
156 | /* FIXME: automatically restart */ |
157 | netdev_info(dev: netdev, format: "Please re-open the interface\n" ); |
158 | } |
159 | } else { |
160 | struct ucc_geth_info *ug_info = ugeth->ug_info; |
161 | |
162 | ret = init_flow_control_params(automatic_flow_control_mode: ug_info->aufc, |
163 | rx_flow_control_enable: ug_info->receiveFlowControl, |
164 | tx_flow_control_enable: ug_info->transmitFlowControl, |
165 | pause_period: ug_info->pausePeriod, |
166 | extension_field: ug_info->extensionField, |
167 | upsmr_register: &ugeth->uccf->uf_regs->upsmr, |
168 | uempr_register: &ugeth->ug_regs->uempr, |
169 | maccfg1_register: &ugeth->ug_regs->maccfg1); |
170 | } |
171 | |
172 | return ret; |
173 | } |
174 | |
175 | static uint32_t |
176 | uec_get_msglevel(struct net_device *netdev) |
177 | { |
178 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
179 | return ugeth->msg_enable; |
180 | } |
181 | |
182 | static void |
183 | uec_set_msglevel(struct net_device *netdev, uint32_t data) |
184 | { |
185 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
186 | ugeth->msg_enable = data; |
187 | } |
188 | |
189 | static int |
190 | uec_get_regs_len(struct net_device *netdev) |
191 | { |
192 | return sizeof(struct ucc_geth); |
193 | } |
194 | |
195 | static void |
196 | uec_get_regs(struct net_device *netdev, |
197 | struct ethtool_regs *regs, void *p) |
198 | { |
199 | int i; |
200 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
201 | u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs; |
202 | u32 *buff = p; |
203 | |
204 | for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++) |
205 | buff[i] = in_be32(&ug_regs[i]); |
206 | } |
207 | |
208 | static void |
209 | uec_get_ringparam(struct net_device *netdev, |
210 | struct ethtool_ringparam *ring, |
211 | struct kernel_ethtool_ringparam *kernel_ring, |
212 | struct netlink_ext_ack *extack) |
213 | { |
214 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
215 | struct ucc_geth_info *ug_info = ugeth->ug_info; |
216 | int queue = 0; |
217 | |
218 | ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; |
219 | ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX; |
220 | ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX; |
221 | ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX; |
222 | |
223 | ring->rx_pending = ug_info->bdRingLenRx[queue]; |
224 | ring->rx_mini_pending = ug_info->bdRingLenRx[queue]; |
225 | ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue]; |
226 | ring->tx_pending = ug_info->bdRingLenTx[queue]; |
227 | } |
228 | |
229 | static int |
230 | uec_set_ringparam(struct net_device *netdev, |
231 | struct ethtool_ringparam *ring, |
232 | struct kernel_ethtool_ringparam *kernel_ring, |
233 | struct netlink_ext_ack *extack) |
234 | { |
235 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
236 | struct ucc_geth_info *ug_info = ugeth->ug_info; |
237 | int queue = 0, ret = 0; |
238 | |
239 | if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) { |
240 | netdev_info(dev: netdev, format: "RxBD ring size must be no smaller than %d\n" , |
241 | UCC_GETH_RX_BD_RING_SIZE_MIN); |
242 | return -EINVAL; |
243 | } |
244 | if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) { |
245 | netdev_info(dev: netdev, format: "RxBD ring size must be multiple of %d\n" , |
246 | UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT); |
247 | return -EINVAL; |
248 | } |
249 | if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) { |
250 | netdev_info(dev: netdev, format: "TxBD ring size must be no smaller than %d\n" , |
251 | UCC_GETH_TX_BD_RING_SIZE_MIN); |
252 | return -EINVAL; |
253 | } |
254 | |
255 | if (netif_running(dev: netdev)) |
256 | return -EBUSY; |
257 | |
258 | ug_info->bdRingLenRx[queue] = ring->rx_pending; |
259 | ug_info->bdRingLenTx[queue] = ring->tx_pending; |
260 | |
261 | return ret; |
262 | } |
263 | |
264 | static int uec_get_sset_count(struct net_device *netdev, int sset) |
265 | { |
266 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
267 | u32 stats_mode = ugeth->ug_info->statisticsMode; |
268 | int len = 0; |
269 | |
270 | switch (sset) { |
271 | case ETH_SS_STATS: |
272 | if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) |
273 | len += UEC_HW_STATS_LEN; |
274 | if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) |
275 | len += UEC_TX_FW_STATS_LEN; |
276 | if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) |
277 | len += UEC_RX_FW_STATS_LEN; |
278 | |
279 | return len; |
280 | |
281 | default: |
282 | return -EOPNOTSUPP; |
283 | } |
284 | } |
285 | |
286 | static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf) |
287 | { |
288 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
289 | u32 stats_mode = ugeth->ug_info->statisticsMode; |
290 | |
291 | if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) { |
292 | memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN * |
293 | ETH_GSTRING_LEN); |
294 | buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN; |
295 | } |
296 | if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) { |
297 | memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN * |
298 | ETH_GSTRING_LEN); |
299 | buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN; |
300 | } |
301 | if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) |
302 | memcpy(buf, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN * |
303 | ETH_GSTRING_LEN); |
304 | } |
305 | |
306 | static void uec_get_ethtool_stats(struct net_device *netdev, |
307 | struct ethtool_stats *stats, uint64_t *data) |
308 | { |
309 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
310 | u32 stats_mode = ugeth->ug_info->statisticsMode; |
311 | u32 __iomem *base; |
312 | int i, j = 0; |
313 | |
314 | if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) { |
315 | if (ugeth->ug_regs) |
316 | base = (u32 __iomem *)&ugeth->ug_regs->tx64; |
317 | else |
318 | base = NULL; |
319 | |
320 | for (i = 0; i < UEC_HW_STATS_LEN; i++) |
321 | data[j++] = base ? in_be32(&base[i]) : 0; |
322 | } |
323 | if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) { |
324 | base = (u32 __iomem *)ugeth->p_tx_fw_statistics_pram; |
325 | for (i = 0; i < UEC_TX_FW_STATS_LEN; i++) |
326 | data[j++] = base ? in_be32(&base[i]) : 0; |
327 | } |
328 | if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) { |
329 | base = (u32 __iomem *)ugeth->p_rx_fw_statistics_pram; |
330 | for (i = 0; i < UEC_RX_FW_STATS_LEN; i++) |
331 | data[j++] = base ? in_be32(&base[i]) : 0; |
332 | } |
333 | } |
334 | |
335 | /* Report driver information */ |
336 | static void |
337 | uec_get_drvinfo(struct net_device *netdev, |
338 | struct ethtool_drvinfo *drvinfo) |
339 | { |
340 | strscpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); |
341 | strscpy(drvinfo->bus_info, "QUICC ENGINE" , sizeof(drvinfo->bus_info)); |
342 | } |
343 | |
344 | #ifdef CONFIG_PM |
345 | |
346 | static void uec_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) |
347 | { |
348 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
349 | struct phy_device *phydev = ugeth->phydev; |
350 | |
351 | if (phydev && phydev->irq) |
352 | wol->supported |= WAKE_PHY; |
353 | if (qe_alive_during_sleep()) |
354 | wol->supported |= WAKE_MAGIC; |
355 | |
356 | wol->wolopts = ugeth->wol_en; |
357 | } |
358 | |
359 | static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) |
360 | { |
361 | struct ucc_geth_private *ugeth = netdev_priv(dev: netdev); |
362 | struct phy_device *phydev = ugeth->phydev; |
363 | |
364 | if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC)) |
365 | return -EINVAL; |
366 | else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq)) |
367 | return -EINVAL; |
368 | else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep()) |
369 | return -EINVAL; |
370 | |
371 | ugeth->wol_en = wol->wolopts; |
372 | device_set_wakeup_enable(dev: &netdev->dev, enable: ugeth->wol_en); |
373 | |
374 | return 0; |
375 | } |
376 | |
377 | #else |
378 | #define uec_get_wol NULL |
379 | #define uec_set_wol NULL |
380 | #endif /* CONFIG_PM */ |
381 | |
382 | static const struct ethtool_ops uec_ethtool_ops = { |
383 | .get_drvinfo = uec_get_drvinfo, |
384 | .get_regs_len = uec_get_regs_len, |
385 | .get_regs = uec_get_regs, |
386 | .get_msglevel = uec_get_msglevel, |
387 | .set_msglevel = uec_set_msglevel, |
388 | .nway_reset = phy_ethtool_nway_reset, |
389 | .get_link = ethtool_op_get_link, |
390 | .get_ringparam = uec_get_ringparam, |
391 | .set_ringparam = uec_set_ringparam, |
392 | .get_pauseparam = uec_get_pauseparam, |
393 | .set_pauseparam = uec_set_pauseparam, |
394 | .get_sset_count = uec_get_sset_count, |
395 | .get_strings = uec_get_strings, |
396 | .get_ethtool_stats = uec_get_ethtool_stats, |
397 | .get_wol = uec_get_wol, |
398 | .set_wol = uec_set_wol, |
399 | .get_ts_info = ethtool_op_get_ts_info, |
400 | .get_link_ksettings = uec_get_ksettings, |
401 | .set_link_ksettings = uec_set_ksettings, |
402 | }; |
403 | |
404 | void uec_set_ethtool_ops(struct net_device *netdev) |
405 | { |
406 | netdev->ethtool_ops = &uec_ethtool_ops; |
407 | } |
408 | |