1 // SPDX-License-Identifier: GPL-2.0
2 /* Texas Instruments K3 AM65 Ethernet Switch SubSystem Driver ethtool ops
3  *
4  * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
5  *
6  */
7 
8 #include <linux/net_tstamp.h>
9 #include <linux/phylink.h>
10 #include <linux/platform_device.h>
11 #include <linux/pm_runtime.h>
12 
13 #include "am65-cpsw-nuss.h"
14 #include "cpsw_ale.h"
15 #include "am65-cpts.h"
16 
17 #define AM65_CPSW_REGDUMP_VER 0x1
18 
19 enum {
20 	AM65_CPSW_REGDUMP_MOD_NUSS = 1,
21 	AM65_CPSW_REGDUMP_MOD_RGMII_STATUS = 2,
22 	AM65_CPSW_REGDUMP_MOD_MDIO = 3,
23 	AM65_CPSW_REGDUMP_MOD_CPSW = 4,
24 	AM65_CPSW_REGDUMP_MOD_CPSW_P0 = 5,
25 	AM65_CPSW_REGDUMP_MOD_CPSW_P1 = 6,
26 	AM65_CPSW_REGDUMP_MOD_CPSW_CPTS = 7,
27 	AM65_CPSW_REGDUMP_MOD_CPSW_ALE = 8,
28 	AM65_CPSW_REGDUMP_MOD_CPSW_ALE_TBL = 9,
29 	AM65_CPSW_REGDUMP_MOD_LAST,
30 };
31 
32 /**
33  * struct am65_cpsw_regdump_hdr - regdump record header
34  *
35  * @module_id: CPSW module ID
36  * @len: CPSW module registers space length in u32
37  */
38 
39 struct am65_cpsw_regdump_hdr {
40 	u32 module_id;
41 	u32 len;
42 };
43 
44 /**
45  * struct am65_cpsw_regdump_item - regdump module description
46  *
47  * @hdr: CPSW module header
48  * @start_ofs: CPSW module registers start addr
49  * @end_ofs: CPSW module registers end addr
50  *
51  * Registers dump provided in the format:
52  *  u32 : module ID
53  *  u32 : dump length
54  *  u32[..len]: registers values
55  */
56 struct am65_cpsw_regdump_item {
57 	struct am65_cpsw_regdump_hdr hdr;
58 	u32 start_ofs;
59 	u32 end_ofs;
60 };
61 
62 #define AM65_CPSW_REGDUMP_REC(mod, start, end) { \
63 	.hdr.module_id = (mod), \
64 	.hdr.len = (end + 4 - start) * 2 + \
65 		   sizeof(struct am65_cpsw_regdump_hdr), \
66 	.start_ofs = (start), \
67 	.end_ofs = end, \
68 }
69 
70 static const struct am65_cpsw_regdump_item am65_cpsw_regdump[] = {
71 	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_NUSS, 0x0, 0x1c),
72 	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_RGMII_STATUS, 0x30, 0x4c),
73 	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_MDIO, 0xf00, 0xffc),
74 	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW, 0x20000, 0x2011c),
75 	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_P0, 0x21000, 0x21320),
76 	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_P1, 0x22000, 0x223a4),
77 	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_CPTS,
78 			      0x3d000, 0x3d048),
79 	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_ALE, 0x3e000, 0x3e13c),
80 	AM65_CPSW_REGDUMP_REC(AM65_CPSW_REGDUMP_MOD_CPSW_ALE_TBL, 0, 0),
81 };
82 
83 struct am65_cpsw_stats_regs {
84 	u32	rx_good_frames;
85 	u32	rx_broadcast_frames;
86 	u32	rx_multicast_frames;
87 	u32	rx_pause_frames;		/* slave */
88 	u32	rx_crc_errors;
89 	u32	rx_align_code_errors;		/* slave */
90 	u32	rx_oversized_frames;
91 	u32	rx_jabber_frames;		/* slave */
92 	u32	rx_undersized_frames;
93 	u32	rx_fragments;			/* slave */
94 	u32	ale_drop;
95 	u32	ale_overrun_drop;
96 	u32	rx_octets;
97 	u32	tx_good_frames;
98 	u32	tx_broadcast_frames;
99 	u32	tx_multicast_frames;
100 	u32	tx_pause_frames;		/* slave */
101 	u32	tx_deferred_frames;		/* slave */
102 	u32	tx_collision_frames;		/* slave */
103 	u32	tx_single_coll_frames;		/* slave */
104 	u32	tx_mult_coll_frames;		/* slave */
105 	u32	tx_excessive_collisions;	/* slave */
106 	u32	tx_late_collisions;		/* slave */
107 	u32	rx_ipg_error;			/* slave 10G only */
108 	u32	tx_carrier_sense_errors;	/* slave */
109 	u32	tx_octets;
110 	u32	tx_64B_frames;
111 	u32	tx_65_to_127B_frames;
112 	u32	tx_128_to_255B_frames;
113 	u32	tx_256_to_511B_frames;
114 	u32	tx_512_to_1023B_frames;
115 	u32	tx_1024B_frames;
116 	u32	net_octets;
117 	u32	rx_bottom_fifo_drop;
118 	u32	rx_port_mask_drop;
119 	u32	rx_top_fifo_drop;
120 	u32	ale_rate_limit_drop;
121 	u32	ale_vid_ingress_drop;
122 	u32	ale_da_eq_sa_drop;
123 	u32	ale_block_drop;			/* K3 */
124 	u32	ale_secure_drop;		/* K3 */
125 	u32	ale_auth_drop;			/* K3 */
126 	u32	ale_unknown_ucast;
127 	u32	ale_unknown_ucast_bytes;
128 	u32	ale_unknown_mcast;
129 	u32	ale_unknown_mcast_bytes;
130 	u32	ale_unknown_bcast;
131 	u32	ale_unknown_bcast_bytes;
132 	u32	ale_pol_match;
133 	u32	ale_pol_match_red;
134 	u32	ale_pol_match_yellow;
135 	u32	ale_mcast_sa_drop;		/* K3 */
136 	u32	ale_dual_vlan_drop;		/* K3 */
137 	u32	ale_len_err_drop;		/* K3 */
138 	u32	ale_ip_next_hdr_drop;		/* K3 */
139 	u32	ale_ipv4_frag_drop;		/* K3 */
140 	u32	__rsvd_1[24];
141 	u32	iet_rx_assembly_err;		/* K3 slave */
142 	u32	iet_rx_assembly_ok;		/* K3 slave */
143 	u32	iet_rx_smd_err;			/* K3 slave */
144 	u32	iet_rx_frag;			/* K3 slave */
145 	u32	iet_tx_hold;			/* K3 slave */
146 	u32	iet_tx_frag;			/* K3 slave */
147 	u32	__rsvd_2[9];
148 	u32	tx_mem_protect_err;
149 	/* following NU only */
150 	u32	tx_pri0;
151 	u32	tx_pri1;
152 	u32	tx_pri2;
153 	u32	tx_pri3;
154 	u32	tx_pri4;
155 	u32	tx_pri5;
156 	u32	tx_pri6;
157 	u32	tx_pri7;
158 	u32	tx_pri0_bcnt;
159 	u32	tx_pri1_bcnt;
160 	u32	tx_pri2_bcnt;
161 	u32	tx_pri3_bcnt;
162 	u32	tx_pri4_bcnt;
163 	u32	tx_pri5_bcnt;
164 	u32	tx_pri6_bcnt;
165 	u32	tx_pri7_bcnt;
166 	u32	tx_pri0_drop;
167 	u32	tx_pri1_drop;
168 	u32	tx_pri2_drop;
169 	u32	tx_pri3_drop;
170 	u32	tx_pri4_drop;
171 	u32	tx_pri5_drop;
172 	u32	tx_pri6_drop;
173 	u32	tx_pri7_drop;
174 	u32	tx_pri0_drop_bcnt;
175 	u32	tx_pri1_drop_bcnt;
176 	u32	tx_pri2_drop_bcnt;
177 	u32	tx_pri3_drop_bcnt;
178 	u32	tx_pri4_drop_bcnt;
179 	u32	tx_pri5_drop_bcnt;
180 	u32	tx_pri6_drop_bcnt;
181 	u32	tx_pri7_drop_bcnt;
182 };
183 
184 struct am65_cpsw_ethtool_stat {
185 	char desc[ETH_GSTRING_LEN];
186 	int offset;
187 };
188 
189 #define AM65_CPSW_STATS(prefix, field)			\
190 {							\
191 	#prefix#field,					\
192 	offsetof(struct am65_cpsw_stats_regs, field)	\
193 }
194 
195 static const struct am65_cpsw_ethtool_stat am65_host_stats[] = {
196 	AM65_CPSW_STATS(p0_, rx_good_frames),
197 	AM65_CPSW_STATS(p0_, rx_broadcast_frames),
198 	AM65_CPSW_STATS(p0_, rx_multicast_frames),
199 	AM65_CPSW_STATS(p0_, rx_crc_errors),
200 	AM65_CPSW_STATS(p0_, rx_oversized_frames),
201 	AM65_CPSW_STATS(p0_, rx_undersized_frames),
202 	AM65_CPSW_STATS(p0_, ale_drop),
203 	AM65_CPSW_STATS(p0_, ale_overrun_drop),
204 	AM65_CPSW_STATS(p0_, rx_octets),
205 	AM65_CPSW_STATS(p0_, tx_good_frames),
206 	AM65_CPSW_STATS(p0_, tx_broadcast_frames),
207 	AM65_CPSW_STATS(p0_, tx_multicast_frames),
208 	AM65_CPSW_STATS(p0_, tx_octets),
209 	AM65_CPSW_STATS(p0_, tx_64B_frames),
210 	AM65_CPSW_STATS(p0_, tx_65_to_127B_frames),
211 	AM65_CPSW_STATS(p0_, tx_128_to_255B_frames),
212 	AM65_CPSW_STATS(p0_, tx_256_to_511B_frames),
213 	AM65_CPSW_STATS(p0_, tx_512_to_1023B_frames),
214 	AM65_CPSW_STATS(p0_, tx_1024B_frames),
215 	AM65_CPSW_STATS(p0_, net_octets),
216 	AM65_CPSW_STATS(p0_, rx_bottom_fifo_drop),
217 	AM65_CPSW_STATS(p0_, rx_port_mask_drop),
218 	AM65_CPSW_STATS(p0_, rx_top_fifo_drop),
219 	AM65_CPSW_STATS(p0_, ale_rate_limit_drop),
220 	AM65_CPSW_STATS(p0_, ale_vid_ingress_drop),
221 	AM65_CPSW_STATS(p0_, ale_da_eq_sa_drop),
222 	AM65_CPSW_STATS(p0_, ale_block_drop),
223 	AM65_CPSW_STATS(p0_, ale_secure_drop),
224 	AM65_CPSW_STATS(p0_, ale_auth_drop),
225 	AM65_CPSW_STATS(p0_, ale_unknown_ucast),
226 	AM65_CPSW_STATS(p0_, ale_unknown_ucast_bytes),
227 	AM65_CPSW_STATS(p0_, ale_unknown_mcast),
228 	AM65_CPSW_STATS(p0_, ale_unknown_mcast_bytes),
229 	AM65_CPSW_STATS(p0_, ale_unknown_bcast),
230 	AM65_CPSW_STATS(p0_, ale_unknown_bcast_bytes),
231 	AM65_CPSW_STATS(p0_, ale_pol_match),
232 	AM65_CPSW_STATS(p0_, ale_pol_match_red),
233 	AM65_CPSW_STATS(p0_, ale_pol_match_yellow),
234 	AM65_CPSW_STATS(p0_, ale_mcast_sa_drop),
235 	AM65_CPSW_STATS(p0_, ale_dual_vlan_drop),
236 	AM65_CPSW_STATS(p0_, ale_len_err_drop),
237 	AM65_CPSW_STATS(p0_, ale_ip_next_hdr_drop),
238 	AM65_CPSW_STATS(p0_, ale_ipv4_frag_drop),
239 	AM65_CPSW_STATS(p0_, tx_mem_protect_err),
240 	AM65_CPSW_STATS(p0_, tx_pri0),
241 	AM65_CPSW_STATS(p0_, tx_pri1),
242 	AM65_CPSW_STATS(p0_, tx_pri2),
243 	AM65_CPSW_STATS(p0_, tx_pri3),
244 	AM65_CPSW_STATS(p0_, tx_pri4),
245 	AM65_CPSW_STATS(p0_, tx_pri5),
246 	AM65_CPSW_STATS(p0_, tx_pri6),
247 	AM65_CPSW_STATS(p0_, tx_pri7),
248 	AM65_CPSW_STATS(p0_, tx_pri0_bcnt),
249 	AM65_CPSW_STATS(p0_, tx_pri1_bcnt),
250 	AM65_CPSW_STATS(p0_, tx_pri2_bcnt),
251 	AM65_CPSW_STATS(p0_, tx_pri3_bcnt),
252 	AM65_CPSW_STATS(p0_, tx_pri4_bcnt),
253 	AM65_CPSW_STATS(p0_, tx_pri5_bcnt),
254 	AM65_CPSW_STATS(p0_, tx_pri6_bcnt),
255 	AM65_CPSW_STATS(p0_, tx_pri7_bcnt),
256 	AM65_CPSW_STATS(p0_, tx_pri0_drop),
257 	AM65_CPSW_STATS(p0_, tx_pri1_drop),
258 	AM65_CPSW_STATS(p0_, tx_pri2_drop),
259 	AM65_CPSW_STATS(p0_, tx_pri3_drop),
260 	AM65_CPSW_STATS(p0_, tx_pri4_drop),
261 	AM65_CPSW_STATS(p0_, tx_pri5_drop),
262 	AM65_CPSW_STATS(p0_, tx_pri6_drop),
263 	AM65_CPSW_STATS(p0_, tx_pri7_drop),
264 	AM65_CPSW_STATS(p0_, tx_pri0_drop_bcnt),
265 	AM65_CPSW_STATS(p0_, tx_pri1_drop_bcnt),
266 	AM65_CPSW_STATS(p0_, tx_pri2_drop_bcnt),
267 	AM65_CPSW_STATS(p0_, tx_pri3_drop_bcnt),
268 	AM65_CPSW_STATS(p0_, tx_pri4_drop_bcnt),
269 	AM65_CPSW_STATS(p0_, tx_pri5_drop_bcnt),
270 	AM65_CPSW_STATS(p0_, tx_pri6_drop_bcnt),
271 	AM65_CPSW_STATS(p0_, tx_pri7_drop_bcnt),
272 };
273 
274 static const struct am65_cpsw_ethtool_stat am65_slave_stats[] = {
275 	AM65_CPSW_STATS(, rx_good_frames),
276 	AM65_CPSW_STATS(, rx_broadcast_frames),
277 	AM65_CPSW_STATS(, rx_multicast_frames),
278 	AM65_CPSW_STATS(, rx_pause_frames),
279 	AM65_CPSW_STATS(, rx_crc_errors),
280 	AM65_CPSW_STATS(, rx_align_code_errors),
281 	AM65_CPSW_STATS(, rx_oversized_frames),
282 	AM65_CPSW_STATS(, rx_jabber_frames),
283 	AM65_CPSW_STATS(, rx_undersized_frames),
284 	AM65_CPSW_STATS(, rx_fragments),
285 	AM65_CPSW_STATS(, ale_drop),
286 	AM65_CPSW_STATS(, ale_overrun_drop),
287 	AM65_CPSW_STATS(, rx_octets),
288 	AM65_CPSW_STATS(, tx_good_frames),
289 	AM65_CPSW_STATS(, tx_broadcast_frames),
290 	AM65_CPSW_STATS(, tx_multicast_frames),
291 	AM65_CPSW_STATS(, tx_pause_frames),
292 	AM65_CPSW_STATS(, tx_deferred_frames),
293 	AM65_CPSW_STATS(, tx_collision_frames),
294 	AM65_CPSW_STATS(, tx_single_coll_frames),
295 	AM65_CPSW_STATS(, tx_mult_coll_frames),
296 	AM65_CPSW_STATS(, tx_excessive_collisions),
297 	AM65_CPSW_STATS(, tx_late_collisions),
298 	AM65_CPSW_STATS(, rx_ipg_error),
299 	AM65_CPSW_STATS(, tx_carrier_sense_errors),
300 	AM65_CPSW_STATS(, tx_octets),
301 	AM65_CPSW_STATS(, tx_64B_frames),
302 	AM65_CPSW_STATS(, tx_65_to_127B_frames),
303 	AM65_CPSW_STATS(, tx_128_to_255B_frames),
304 	AM65_CPSW_STATS(, tx_256_to_511B_frames),
305 	AM65_CPSW_STATS(, tx_512_to_1023B_frames),
306 	AM65_CPSW_STATS(, tx_1024B_frames),
307 	AM65_CPSW_STATS(, net_octets),
308 	AM65_CPSW_STATS(, rx_bottom_fifo_drop),
309 	AM65_CPSW_STATS(, rx_port_mask_drop),
310 	AM65_CPSW_STATS(, rx_top_fifo_drop),
311 	AM65_CPSW_STATS(, ale_rate_limit_drop),
312 	AM65_CPSW_STATS(, ale_vid_ingress_drop),
313 	AM65_CPSW_STATS(, ale_da_eq_sa_drop),
314 	AM65_CPSW_STATS(, ale_block_drop),
315 	AM65_CPSW_STATS(, ale_secure_drop),
316 	AM65_CPSW_STATS(, ale_auth_drop),
317 	AM65_CPSW_STATS(, ale_unknown_ucast),
318 	AM65_CPSW_STATS(, ale_unknown_ucast_bytes),
319 	AM65_CPSW_STATS(, ale_unknown_mcast),
320 	AM65_CPSW_STATS(, ale_unknown_mcast_bytes),
321 	AM65_CPSW_STATS(, ale_unknown_bcast),
322 	AM65_CPSW_STATS(, ale_unknown_bcast_bytes),
323 	AM65_CPSW_STATS(, ale_pol_match),
324 	AM65_CPSW_STATS(, ale_pol_match_red),
325 	AM65_CPSW_STATS(, ale_pol_match_yellow),
326 	AM65_CPSW_STATS(, ale_mcast_sa_drop),
327 	AM65_CPSW_STATS(, ale_dual_vlan_drop),
328 	AM65_CPSW_STATS(, ale_len_err_drop),
329 	AM65_CPSW_STATS(, ale_ip_next_hdr_drop),
330 	AM65_CPSW_STATS(, ale_ipv4_frag_drop),
331 	AM65_CPSW_STATS(, iet_rx_assembly_err),
332 	AM65_CPSW_STATS(, iet_rx_assembly_ok),
333 	AM65_CPSW_STATS(, iet_rx_smd_err),
334 	AM65_CPSW_STATS(, iet_rx_frag),
335 	AM65_CPSW_STATS(, iet_tx_hold),
336 	AM65_CPSW_STATS(, iet_tx_frag),
337 	AM65_CPSW_STATS(, tx_mem_protect_err),
338 	AM65_CPSW_STATS(, tx_pri0),
339 	AM65_CPSW_STATS(, tx_pri1),
340 	AM65_CPSW_STATS(, tx_pri2),
341 	AM65_CPSW_STATS(, tx_pri3),
342 	AM65_CPSW_STATS(, tx_pri4),
343 	AM65_CPSW_STATS(, tx_pri5),
344 	AM65_CPSW_STATS(, tx_pri6),
345 	AM65_CPSW_STATS(, tx_pri7),
346 	AM65_CPSW_STATS(, tx_pri0_bcnt),
347 	AM65_CPSW_STATS(, tx_pri1_bcnt),
348 	AM65_CPSW_STATS(, tx_pri2_bcnt),
349 	AM65_CPSW_STATS(, tx_pri3_bcnt),
350 	AM65_CPSW_STATS(, tx_pri4_bcnt),
351 	AM65_CPSW_STATS(, tx_pri5_bcnt),
352 	AM65_CPSW_STATS(, tx_pri6_bcnt),
353 	AM65_CPSW_STATS(, tx_pri7_bcnt),
354 	AM65_CPSW_STATS(, tx_pri0_drop),
355 	AM65_CPSW_STATS(, tx_pri1_drop),
356 	AM65_CPSW_STATS(, tx_pri2_drop),
357 	AM65_CPSW_STATS(, tx_pri3_drop),
358 	AM65_CPSW_STATS(, tx_pri4_drop),
359 	AM65_CPSW_STATS(, tx_pri5_drop),
360 	AM65_CPSW_STATS(, tx_pri6_drop),
361 	AM65_CPSW_STATS(, tx_pri7_drop),
362 	AM65_CPSW_STATS(, tx_pri0_drop_bcnt),
363 	AM65_CPSW_STATS(, tx_pri1_drop_bcnt),
364 	AM65_CPSW_STATS(, tx_pri2_drop_bcnt),
365 	AM65_CPSW_STATS(, tx_pri3_drop_bcnt),
366 	AM65_CPSW_STATS(, tx_pri4_drop_bcnt),
367 	AM65_CPSW_STATS(, tx_pri5_drop_bcnt),
368 	AM65_CPSW_STATS(, tx_pri6_drop_bcnt),
369 	AM65_CPSW_STATS(, tx_pri7_drop_bcnt),
370 };
371 
372 /* Ethtool priv_flags */
373 static const char am65_cpsw_ethtool_priv_flags[][ETH_GSTRING_LEN] = {
374 #define	AM65_CPSW_PRIV_P0_RX_PTYPE_RROBIN	BIT(0)
375 	"p0-rx-ptype-rrobin",
376 };
377 
am65_cpsw_ethtool_op_begin(struct net_device * ndev)378 static int am65_cpsw_ethtool_op_begin(struct net_device *ndev)
379 {
380 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
381 	int ret;
382 
383 	ret = pm_runtime_resume_and_get(common->dev);
384 	if (ret < 0)
385 		dev_err(common->dev, "ethtool begin failed %d\n", ret);
386 
387 	return ret;
388 }
389 
am65_cpsw_ethtool_op_complete(struct net_device * ndev)390 static void am65_cpsw_ethtool_op_complete(struct net_device *ndev)
391 {
392 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
393 	int ret;
394 
395 	ret = pm_runtime_put(common->dev);
396 	if (ret < 0 && ret != -EBUSY)
397 		dev_err(common->dev, "ethtool complete failed %d\n", ret);
398 }
399 
am65_cpsw_get_drvinfo(struct net_device * ndev,struct ethtool_drvinfo * info)400 static void am65_cpsw_get_drvinfo(struct net_device *ndev,
401 				  struct ethtool_drvinfo *info)
402 {
403 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
404 
405 	strscpy(info->driver, dev_driver_string(common->dev),
406 		sizeof(info->driver));
407 	strscpy(info->bus_info, dev_name(common->dev), sizeof(info->bus_info));
408 }
409 
am65_cpsw_get_msglevel(struct net_device * ndev)410 static u32 am65_cpsw_get_msglevel(struct net_device *ndev)
411 {
412 	struct am65_cpsw_ndev_priv *priv = am65_ndev_to_priv(ndev);
413 
414 	return priv->msg_enable;
415 }
416 
am65_cpsw_set_msglevel(struct net_device * ndev,u32 value)417 static void am65_cpsw_set_msglevel(struct net_device *ndev, u32 value)
418 {
419 	struct am65_cpsw_ndev_priv *priv = am65_ndev_to_priv(ndev);
420 
421 	priv->msg_enable = value;
422 }
423 
am65_cpsw_get_channels(struct net_device * ndev,struct ethtool_channels * ch)424 static void am65_cpsw_get_channels(struct net_device *ndev,
425 				   struct ethtool_channels *ch)
426 {
427 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
428 
429 	ch->max_rx = AM65_CPSW_MAX_RX_QUEUES;
430 	ch->max_tx = AM65_CPSW_MAX_TX_QUEUES;
431 	ch->rx_count = AM65_CPSW_MAX_RX_QUEUES;
432 	ch->tx_count = common->tx_ch_num;
433 }
434 
am65_cpsw_set_channels(struct net_device * ndev,struct ethtool_channels * chs)435 static int am65_cpsw_set_channels(struct net_device *ndev,
436 				  struct ethtool_channels *chs)
437 {
438 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
439 
440 	if (!chs->rx_count || !chs->tx_count)
441 		return -EINVAL;
442 
443 	/* Check if interface is up. Can change the num queues when
444 	 * the interface is down.
445 	 */
446 	if (common->usage_count)
447 		return -EBUSY;
448 
449 	am65_cpsw_nuss_remove_tx_chns(common);
450 
451 	return am65_cpsw_nuss_update_tx_chns(common, chs->tx_count);
452 }
453 
454 static void
am65_cpsw_get_ringparam(struct net_device * ndev,struct ethtool_ringparam * ering,struct kernel_ethtool_ringparam * kernel_ering,struct netlink_ext_ack * extack)455 am65_cpsw_get_ringparam(struct net_device *ndev,
456 			struct ethtool_ringparam *ering,
457 			struct kernel_ethtool_ringparam *kernel_ering,
458 			struct netlink_ext_ack *extack)
459 {
460 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
461 
462 	/* not supported */
463 	ering->tx_pending = common->tx_chns[0].descs_num;
464 	ering->rx_pending = common->rx_chns.descs_num;
465 }
466 
am65_cpsw_get_pauseparam(struct net_device * ndev,struct ethtool_pauseparam * pause)467 static void am65_cpsw_get_pauseparam(struct net_device *ndev,
468 				     struct ethtool_pauseparam *pause)
469 {
470 	struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
471 
472 	phylink_ethtool_get_pauseparam(salve->phylink, pause);
473 }
474 
am65_cpsw_set_pauseparam(struct net_device * ndev,struct ethtool_pauseparam * pause)475 static int am65_cpsw_set_pauseparam(struct net_device *ndev,
476 				    struct ethtool_pauseparam *pause)
477 {
478 	struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
479 
480 	return phylink_ethtool_set_pauseparam(salve->phylink, pause);
481 }
482 
am65_cpsw_get_wol(struct net_device * ndev,struct ethtool_wolinfo * wol)483 static void am65_cpsw_get_wol(struct net_device *ndev,
484 			      struct ethtool_wolinfo *wol)
485 {
486 	struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
487 
488 	phylink_ethtool_get_wol(salve->phylink, wol);
489 }
490 
am65_cpsw_set_wol(struct net_device * ndev,struct ethtool_wolinfo * wol)491 static int am65_cpsw_set_wol(struct net_device *ndev,
492 			     struct ethtool_wolinfo *wol)
493 {
494 	struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
495 
496 	return phylink_ethtool_set_wol(salve->phylink, wol);
497 }
498 
am65_cpsw_get_link_ksettings(struct net_device * ndev,struct ethtool_link_ksettings * ecmd)499 static int am65_cpsw_get_link_ksettings(struct net_device *ndev,
500 					struct ethtool_link_ksettings *ecmd)
501 {
502 	struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
503 
504 	return phylink_ethtool_ksettings_get(salve->phylink, ecmd);
505 }
506 
507 static int
am65_cpsw_set_link_ksettings(struct net_device * ndev,const struct ethtool_link_ksettings * ecmd)508 am65_cpsw_set_link_ksettings(struct net_device *ndev,
509 			     const struct ethtool_link_ksettings *ecmd)
510 {
511 	struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
512 
513 	return phylink_ethtool_ksettings_set(salve->phylink, ecmd);
514 }
515 
am65_cpsw_get_eee(struct net_device * ndev,struct ethtool_eee * edata)516 static int am65_cpsw_get_eee(struct net_device *ndev, struct ethtool_eee *edata)
517 {
518 	struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
519 
520 	return phylink_ethtool_get_eee(salve->phylink, edata);
521 }
522 
am65_cpsw_set_eee(struct net_device * ndev,struct ethtool_eee * edata)523 static int am65_cpsw_set_eee(struct net_device *ndev, struct ethtool_eee *edata)
524 {
525 	struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
526 
527 	return phylink_ethtool_set_eee(salve->phylink, edata);
528 }
529 
am65_cpsw_nway_reset(struct net_device * ndev)530 static int am65_cpsw_nway_reset(struct net_device *ndev)
531 {
532 	struct am65_cpsw_slave_data *salve = am65_ndev_to_slave(ndev);
533 
534 	return phylink_ethtool_nway_reset(salve->phylink);
535 }
536 
am65_cpsw_get_regs_len(struct net_device * ndev)537 static int am65_cpsw_get_regs_len(struct net_device *ndev)
538 {
539 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
540 	u32 ale_entries, i, regdump_len = 0;
541 
542 	ale_entries = cpsw_ale_get_num_entries(common->ale);
543 	for (i = 0; i < ARRAY_SIZE(am65_cpsw_regdump); i++) {
544 		if (am65_cpsw_regdump[i].hdr.module_id ==
545 		    AM65_CPSW_REGDUMP_MOD_CPSW_ALE_TBL) {
546 			regdump_len += sizeof(struct am65_cpsw_regdump_hdr);
547 			regdump_len += ale_entries *
548 				       ALE_ENTRY_WORDS * sizeof(u32);
549 			continue;
550 		}
551 		regdump_len += am65_cpsw_regdump[i].hdr.len;
552 	}
553 
554 	return regdump_len;
555 }
556 
am65_cpsw_get_regs(struct net_device * ndev,struct ethtool_regs * regs,void * p)557 static void am65_cpsw_get_regs(struct net_device *ndev,
558 			       struct ethtool_regs *regs, void *p)
559 {
560 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
561 	u32 ale_entries, i, j, pos, *reg = p;
562 
563 	/* update CPSW IP version */
564 	regs->version = AM65_CPSW_REGDUMP_VER;
565 	ale_entries = cpsw_ale_get_num_entries(common->ale);
566 
567 	pos = 0;
568 	for (i = 0; i < ARRAY_SIZE(am65_cpsw_regdump); i++) {
569 		reg[pos++] = am65_cpsw_regdump[i].hdr.module_id;
570 
571 		if (am65_cpsw_regdump[i].hdr.module_id ==
572 		    AM65_CPSW_REGDUMP_MOD_CPSW_ALE_TBL) {
573 			u32 ale_tbl_len = ale_entries *
574 					  ALE_ENTRY_WORDS * sizeof(u32) +
575 					  sizeof(struct am65_cpsw_regdump_hdr);
576 			reg[pos++] = ale_tbl_len;
577 			cpsw_ale_dump(common->ale, &reg[pos]);
578 			pos += ale_tbl_len;
579 			continue;
580 		}
581 
582 		reg[pos++] = am65_cpsw_regdump[i].hdr.len;
583 
584 		j = am65_cpsw_regdump[i].start_ofs;
585 		do {
586 			reg[pos++] = j;
587 			reg[pos++] = readl_relaxed(common->ss_base + j);
588 			j += sizeof(u32);
589 		} while (j <= am65_cpsw_regdump[i].end_ofs);
590 	}
591 }
592 
am65_cpsw_get_sset_count(struct net_device * ndev,int sset)593 static int am65_cpsw_get_sset_count(struct net_device *ndev, int sset)
594 {
595 	switch (sset) {
596 	case ETH_SS_STATS:
597 		return ARRAY_SIZE(am65_host_stats) +
598 		       ARRAY_SIZE(am65_slave_stats);
599 	case ETH_SS_PRIV_FLAGS:
600 		return ARRAY_SIZE(am65_cpsw_ethtool_priv_flags);
601 	default:
602 		return -EOPNOTSUPP;
603 	}
604 }
605 
am65_cpsw_get_strings(struct net_device * ndev,u32 stringset,u8 * data)606 static void am65_cpsw_get_strings(struct net_device *ndev,
607 				  u32 stringset, u8 *data)
608 {
609 	const struct am65_cpsw_ethtool_stat *hw_stats;
610 	u32 i, num_stats;
611 	u8 *p = data;
612 
613 	switch (stringset) {
614 	case ETH_SS_STATS:
615 		num_stats = ARRAY_SIZE(am65_host_stats);
616 		hw_stats = am65_host_stats;
617 		for (i = 0; i < num_stats; i++) {
618 			memcpy(p, hw_stats[i].desc, ETH_GSTRING_LEN);
619 			p += ETH_GSTRING_LEN;
620 		}
621 
622 		num_stats = ARRAY_SIZE(am65_slave_stats);
623 		hw_stats = am65_slave_stats;
624 		for (i = 0; i < num_stats; i++) {
625 			memcpy(p, hw_stats[i].desc, ETH_GSTRING_LEN);
626 			p += ETH_GSTRING_LEN;
627 		}
628 		break;
629 	case ETH_SS_PRIV_FLAGS:
630 		num_stats = ARRAY_SIZE(am65_cpsw_ethtool_priv_flags);
631 
632 		for (i = 0; i < num_stats; i++) {
633 			memcpy(p, am65_cpsw_ethtool_priv_flags[i],
634 			       ETH_GSTRING_LEN);
635 			p += ETH_GSTRING_LEN;
636 		}
637 		break;
638 	}
639 }
640 
am65_cpsw_get_ethtool_stats(struct net_device * ndev,struct ethtool_stats * stats,u64 * data)641 static void am65_cpsw_get_ethtool_stats(struct net_device *ndev,
642 					struct ethtool_stats *stats, u64 *data)
643 {
644 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
645 	const struct am65_cpsw_ethtool_stat *hw_stats;
646 	struct am65_cpsw_host *host_p;
647 	struct am65_cpsw_port *port;
648 	u32 i, num_stats;
649 
650 	host_p = am65_common_get_host(common);
651 	port = am65_ndev_to_port(ndev);
652 	num_stats = ARRAY_SIZE(am65_host_stats);
653 	hw_stats = am65_host_stats;
654 	for (i = 0; i < num_stats; i++)
655 		*data++ = readl_relaxed(host_p->stat_base +
656 					hw_stats[i].offset);
657 
658 	num_stats = ARRAY_SIZE(am65_slave_stats);
659 	hw_stats = am65_slave_stats;
660 	for (i = 0; i < num_stats; i++)
661 		*data++ = readl_relaxed(port->stat_base +
662 					hw_stats[i].offset);
663 }
664 
am65_cpsw_get_ethtool_ts_info(struct net_device * ndev,struct ethtool_ts_info * info)665 static int am65_cpsw_get_ethtool_ts_info(struct net_device *ndev,
666 					 struct ethtool_ts_info *info)
667 {
668 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
669 
670 	if (!IS_ENABLED(CONFIG_TI_K3_AM65_CPTS))
671 		return ethtool_op_get_ts_info(ndev, info);
672 
673 	info->so_timestamping =
674 		SOF_TIMESTAMPING_TX_HARDWARE |
675 		SOF_TIMESTAMPING_TX_SOFTWARE |
676 		SOF_TIMESTAMPING_RX_HARDWARE |
677 		SOF_TIMESTAMPING_RX_SOFTWARE |
678 		SOF_TIMESTAMPING_SOFTWARE |
679 		SOF_TIMESTAMPING_RAW_HARDWARE;
680 	info->phc_index = am65_cpts_phc_index(common->cpts);
681 	info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
682 	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
683 	return 0;
684 }
685 
am65_cpsw_get_ethtool_priv_flags(struct net_device * ndev)686 static u32 am65_cpsw_get_ethtool_priv_flags(struct net_device *ndev)
687 {
688 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
689 	u32 priv_flags = 0;
690 
691 	if (common->pf_p0_rx_ptype_rrobin)
692 		priv_flags |= AM65_CPSW_PRIV_P0_RX_PTYPE_RROBIN;
693 
694 	return priv_flags;
695 }
696 
am65_cpsw_set_ethtool_priv_flags(struct net_device * ndev,u32 flags)697 static int am65_cpsw_set_ethtool_priv_flags(struct net_device *ndev, u32 flags)
698 {
699 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
700 	int rrobin;
701 
702 	rrobin = !!(flags & AM65_CPSW_PRIV_P0_RX_PTYPE_RROBIN);
703 
704 	if (common->usage_count)
705 		return -EBUSY;
706 
707 	if (common->est_enabled && rrobin) {
708 		netdev_err(ndev,
709 			   "p0-rx-ptype-rrobin flag conflicts with QOS\n");
710 		return -EINVAL;
711 	}
712 
713 	common->pf_p0_rx_ptype_rrobin = rrobin;
714 
715 	return 0;
716 }
717 
718 const struct ethtool_ops am65_cpsw_ethtool_ops_slave = {
719 	.begin			= am65_cpsw_ethtool_op_begin,
720 	.complete		= am65_cpsw_ethtool_op_complete,
721 	.get_drvinfo		= am65_cpsw_get_drvinfo,
722 	.get_msglevel		= am65_cpsw_get_msglevel,
723 	.set_msglevel		= am65_cpsw_set_msglevel,
724 	.get_channels		= am65_cpsw_get_channels,
725 	.set_channels		= am65_cpsw_set_channels,
726 	.get_ringparam		= am65_cpsw_get_ringparam,
727 	.get_regs_len		= am65_cpsw_get_regs_len,
728 	.get_regs		= am65_cpsw_get_regs,
729 	.get_sset_count		= am65_cpsw_get_sset_count,
730 	.get_strings		= am65_cpsw_get_strings,
731 	.get_ethtool_stats	= am65_cpsw_get_ethtool_stats,
732 	.get_ts_info		= am65_cpsw_get_ethtool_ts_info,
733 	.get_priv_flags		= am65_cpsw_get_ethtool_priv_flags,
734 	.set_priv_flags		= am65_cpsw_set_ethtool_priv_flags,
735 
736 	.get_link		= ethtool_op_get_link,
737 	.get_link_ksettings	= am65_cpsw_get_link_ksettings,
738 	.set_link_ksettings	= am65_cpsw_set_link_ksettings,
739 	.get_pauseparam		= am65_cpsw_get_pauseparam,
740 	.set_pauseparam		= am65_cpsw_set_pauseparam,
741 	.get_wol		= am65_cpsw_get_wol,
742 	.set_wol		= am65_cpsw_set_wol,
743 	.get_eee		= am65_cpsw_get_eee,
744 	.set_eee		= am65_cpsw_set_eee,
745 	.nway_reset		= am65_cpsw_nway_reset,
746 };
747