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10#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
11
12#include <linux/clk.h>
13#include <linux/interrupt.h>
14#include <linux/kernel.h>
15#include <linux/netdevice.h>
16#include <linux/net_tstamp.h>
17#include <linux/phy.h>
18#include <linux/ptp_clock_kernel.h>
19
20#include "sxgbe_common.h"
21#include "sxgbe_reg.h"
22#include "sxgbe_dma.h"
23
24struct sxgbe_stats {
25 char stat_string[ETH_GSTRING_LEN];
26 int sizeof_stat;
27 int stat_offset;
28};
29
30#define SXGBE_STAT(m) \
31{ \
32 #m, \
33 sizeof_field(struct sxgbe_extra_stats, m), \
34 offsetof(struct sxgbe_priv_data, xstats.m) \
35}
36
37static const struct sxgbe_stats sxgbe_gstrings_stats[] = {
38
39 SXGBE_STAT(tx_process_stopped_irq),
40 SXGBE_STAT(tx_ctxt_desc_err),
41 SXGBE_STAT(tx_threshold),
42 SXGBE_STAT(rx_threshold),
43 SXGBE_STAT(tx_pkt_n),
44 SXGBE_STAT(rx_pkt_n),
45 SXGBE_STAT(normal_irq_n),
46 SXGBE_STAT(tx_normal_irq_n),
47 SXGBE_STAT(rx_normal_irq_n),
48 SXGBE_STAT(napi_poll),
49 SXGBE_STAT(tx_clean),
50 SXGBE_STAT(tx_reset_ic_bit),
51 SXGBE_STAT(rx_process_stopped_irq),
52 SXGBE_STAT(rx_underflow_irq),
53
54
55 SXGBE_STAT(fatal_bus_error_irq),
56 SXGBE_STAT(tx_read_transfer_err),
57 SXGBE_STAT(tx_write_transfer_err),
58 SXGBE_STAT(tx_desc_access_err),
59 SXGBE_STAT(tx_buffer_access_err),
60 SXGBE_STAT(tx_data_transfer_err),
61 SXGBE_STAT(rx_read_transfer_err),
62 SXGBE_STAT(rx_write_transfer_err),
63 SXGBE_STAT(rx_desc_access_err),
64 SXGBE_STAT(rx_buffer_access_err),
65 SXGBE_STAT(rx_data_transfer_err),
66
67
68 SXGBE_STAT(tx_lpi_entry_n),
69 SXGBE_STAT(tx_lpi_exit_n),
70 SXGBE_STAT(rx_lpi_entry_n),
71 SXGBE_STAT(rx_lpi_exit_n),
72 SXGBE_STAT(eee_wakeup_error_n),
73
74
75
76 SXGBE_STAT(rx_code_gmii_err),
77 SXGBE_STAT(rx_watchdog_err),
78 SXGBE_STAT(rx_crc_err),
79 SXGBE_STAT(rx_gaint_pkt_err),
80 SXGBE_STAT(ip_hdr_err),
81 SXGBE_STAT(ip_payload_err),
82 SXGBE_STAT(overflow_error),
83
84
85 SXGBE_STAT(len_pkt),
86 SXGBE_STAT(mac_ctl_pkt),
87 SXGBE_STAT(dcb_ctl_pkt),
88 SXGBE_STAT(arp_pkt),
89 SXGBE_STAT(oam_pkt),
90 SXGBE_STAT(untag_okt),
91 SXGBE_STAT(other_pkt),
92 SXGBE_STAT(svlan_tag_pkt),
93 SXGBE_STAT(cvlan_tag_pkt),
94 SXGBE_STAT(dvlan_ocvlan_icvlan_pkt),
95 SXGBE_STAT(dvlan_osvlan_isvlan_pkt),
96 SXGBE_STAT(dvlan_osvlan_icvlan_pkt),
97 SXGBE_STAT(dvan_ocvlan_icvlan_pkt),
98
99
100 SXGBE_STAT(not_ip_pkt),
101 SXGBE_STAT(ip4_tcp_pkt),
102 SXGBE_STAT(ip4_udp_pkt),
103 SXGBE_STAT(ip4_icmp_pkt),
104 SXGBE_STAT(ip4_unknown_pkt),
105 SXGBE_STAT(ip6_tcp_pkt),
106 SXGBE_STAT(ip6_udp_pkt),
107 SXGBE_STAT(ip6_icmp_pkt),
108 SXGBE_STAT(ip6_unknown_pkt),
109
110
111 SXGBE_STAT(vlan_filter_match),
112 SXGBE_STAT(sa_filter_fail),
113 SXGBE_STAT(da_filter_fail),
114 SXGBE_STAT(hash_filter_pass),
115 SXGBE_STAT(l3_filter_match),
116 SXGBE_STAT(l4_filter_match),
117
118
119 SXGBE_STAT(timestamp_dropped),
120 SXGBE_STAT(rx_msg_type_no_ptp),
121 SXGBE_STAT(rx_ptp_type_sync),
122 SXGBE_STAT(rx_ptp_type_follow_up),
123 SXGBE_STAT(rx_ptp_type_delay_req),
124 SXGBE_STAT(rx_ptp_type_delay_resp),
125 SXGBE_STAT(rx_ptp_type_pdelay_req),
126 SXGBE_STAT(rx_ptp_type_pdelay_resp),
127 SXGBE_STAT(rx_ptp_type_pdelay_follow_up),
128 SXGBE_STAT(rx_ptp_announce),
129 SXGBE_STAT(rx_ptp_mgmt),
130 SXGBE_STAT(rx_ptp_signal),
131 SXGBE_STAT(rx_ptp_resv_msg_type),
132};
133#define SXGBE_STATS_LEN ARRAY_SIZE(sxgbe_gstrings_stats)
134
135static int sxgbe_get_eee(struct net_device *dev,
136 struct ethtool_eee *edata)
137{
138 struct sxgbe_priv_data *priv = netdev_priv(dev);
139
140 if (!priv->hw_cap.eee)
141 return -EOPNOTSUPP;
142
143 edata->eee_enabled = priv->eee_enabled;
144 edata->eee_active = priv->eee_active;
145 edata->tx_lpi_timer = priv->tx_lpi_timer;
146
147 return phy_ethtool_get_eee(dev->phydev, edata);
148}
149
150static int sxgbe_set_eee(struct net_device *dev,
151 struct ethtool_eee *edata)
152{
153 struct sxgbe_priv_data *priv = netdev_priv(dev);
154
155 priv->eee_enabled = edata->eee_enabled;
156
157 if (!priv->eee_enabled) {
158 sxgbe_disable_eee_mode(priv);
159 } else {
160
161
162
163
164 priv->eee_enabled = sxgbe_eee_init(priv);
165 if (!priv->eee_enabled)
166 return -EOPNOTSUPP;
167
168
169 priv->tx_lpi_timer = edata->tx_lpi_timer;
170 }
171
172 return phy_ethtool_set_eee(dev->phydev, edata);
173}
174
175static void sxgbe_getdrvinfo(struct net_device *dev,
176 struct ethtool_drvinfo *info)
177{
178 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
179 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
180}
181
182static u32 sxgbe_getmsglevel(struct net_device *dev)
183{
184 struct sxgbe_priv_data *priv = netdev_priv(dev);
185 return priv->msg_enable;
186}
187
188static void sxgbe_setmsglevel(struct net_device *dev, u32 level)
189{
190 struct sxgbe_priv_data *priv = netdev_priv(dev);
191 priv->msg_enable = level;
192}
193
194static void sxgbe_get_strings(struct net_device *dev, u32 stringset, u8 *data)
195{
196 int i;
197 u8 *p = data;
198
199 switch (stringset) {
200 case ETH_SS_STATS:
201 for (i = 0; i < SXGBE_STATS_LEN; i++) {
202 memcpy(p, sxgbe_gstrings_stats[i].stat_string,
203 ETH_GSTRING_LEN);
204 p += ETH_GSTRING_LEN;
205 }
206 break;
207 default:
208 WARN_ON(1);
209 break;
210 }
211}
212
213static int sxgbe_get_sset_count(struct net_device *netdev, int sset)
214{
215 int len;
216
217 switch (sset) {
218 case ETH_SS_STATS:
219 len = SXGBE_STATS_LEN;
220 return len;
221 default:
222 return -EINVAL;
223 }
224}
225
226static void sxgbe_get_ethtool_stats(struct net_device *dev,
227 struct ethtool_stats *dummy, u64 *data)
228{
229 struct sxgbe_priv_data *priv = netdev_priv(dev);
230 int i;
231 char *p;
232
233 if (priv->eee_enabled) {
234 int val = phy_get_eee_err(dev->phydev);
235
236 if (val)
237 priv->xstats.eee_wakeup_error_n = val;
238 }
239
240 for (i = 0; i < SXGBE_STATS_LEN; i++) {
241 p = (char *)priv + sxgbe_gstrings_stats[i].stat_offset;
242 data[i] = (sxgbe_gstrings_stats[i].sizeof_stat == sizeof(u64))
243 ? (*(u64 *)p) : (*(u32 *)p);
244 }
245}
246
247static void sxgbe_get_channels(struct net_device *dev,
248 struct ethtool_channels *channel)
249{
250 channel->max_rx = SXGBE_MAX_RX_CHANNELS;
251 channel->max_tx = SXGBE_MAX_TX_CHANNELS;
252 channel->rx_count = SXGBE_RX_QUEUES;
253 channel->tx_count = SXGBE_TX_QUEUES;
254}
255
256static u32 sxgbe_riwt2usec(u32 riwt, struct sxgbe_priv_data *priv)
257{
258 unsigned long clk = clk_get_rate(priv->sxgbe_clk);
259
260 if (!clk)
261 return 0;
262
263 return (riwt * 256) / (clk / 1000000);
264}
265
266static u32 sxgbe_usec2riwt(u32 usec, struct sxgbe_priv_data *priv)
267{
268 unsigned long clk = clk_get_rate(priv->sxgbe_clk);
269
270 if (!clk)
271 return 0;
272
273 return (usec * (clk / 1000000)) / 256;
274}
275
276static int sxgbe_get_coalesce(struct net_device *dev,
277 struct ethtool_coalesce *ec,
278 struct kernel_ethtool_coalesce *kernel_coal,
279 struct netlink_ext_ack *extack)
280{
281 struct sxgbe_priv_data *priv = netdev_priv(dev);
282
283 if (priv->use_riwt)
284 ec->rx_coalesce_usecs = sxgbe_riwt2usec(priv->rx_riwt, priv);
285
286 return 0;
287}
288
289static int sxgbe_set_coalesce(struct net_device *dev,
290 struct ethtool_coalesce *ec,
291 struct kernel_ethtool_coalesce *kernel_coal,
292 struct netlink_ext_ack *extack)
293{
294 struct sxgbe_priv_data *priv = netdev_priv(dev);
295 unsigned int rx_riwt;
296
297 if (!ec->rx_coalesce_usecs)
298 return -EINVAL;
299
300 rx_riwt = sxgbe_usec2riwt(ec->rx_coalesce_usecs, priv);
301
302 if ((rx_riwt > SXGBE_MAX_DMA_RIWT) || (rx_riwt < SXGBE_MIN_DMA_RIWT))
303 return -EINVAL;
304 else if (!priv->use_riwt)
305 return -EOPNOTSUPP;
306
307 priv->rx_riwt = rx_riwt;
308 priv->hw->dma->rx_watchdog(priv->ioaddr, priv->rx_riwt);
309
310 return 0;
311}
312
313static int sxgbe_get_rss_hash_opts(struct sxgbe_priv_data *priv,
314 struct ethtool_rxnfc *cmd)
315{
316 cmd->data = 0;
317
318
319 switch (cmd->flow_type) {
320 case TCP_V4_FLOW:
321 case UDP_V4_FLOW:
322 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
323 fallthrough;
324 case SCTP_V4_FLOW:
325 case AH_ESP_V4_FLOW:
326 case AH_V4_FLOW:
327 case ESP_V4_FLOW:
328 case IPV4_FLOW:
329 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
330 break;
331 case TCP_V6_FLOW:
332 case UDP_V6_FLOW:
333 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
334 fallthrough;
335 case SCTP_V6_FLOW:
336 case AH_ESP_V6_FLOW:
337 case AH_V6_FLOW:
338 case ESP_V6_FLOW:
339 case IPV6_FLOW:
340 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
341 break;
342 default:
343 return -EINVAL;
344 }
345
346 return 0;
347}
348
349static int sxgbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
350 u32 *rule_locs)
351{
352 struct sxgbe_priv_data *priv = netdev_priv(dev);
353 int ret = -EOPNOTSUPP;
354
355 switch (cmd->cmd) {
356 case ETHTOOL_GRXFH:
357 ret = sxgbe_get_rss_hash_opts(priv, cmd);
358 break;
359 default:
360 break;
361 }
362
363 return ret;
364}
365
366static int sxgbe_set_rss_hash_opt(struct sxgbe_priv_data *priv,
367 struct ethtool_rxnfc *cmd)
368{
369 u32 reg_val = 0;
370
371
372
373
374 if (cmd->data & ~(RXH_IP_SRC | RXH_IP_DST |
375 RXH_L4_B_0_1 | RXH_L4_B_2_3))
376 return -EINVAL;
377
378 switch (cmd->flow_type) {
379 case TCP_V4_FLOW:
380 case TCP_V6_FLOW:
381 if (!(cmd->data & RXH_IP_SRC) ||
382 !(cmd->data & RXH_IP_DST) ||
383 !(cmd->data & RXH_L4_B_0_1) ||
384 !(cmd->data & RXH_L4_B_2_3))
385 return -EINVAL;
386 reg_val = SXGBE_CORE_RSS_CTL_TCP4TE;
387 break;
388 case UDP_V4_FLOW:
389 case UDP_V6_FLOW:
390 if (!(cmd->data & RXH_IP_SRC) ||
391 !(cmd->data & RXH_IP_DST) ||
392 !(cmd->data & RXH_L4_B_0_1) ||
393 !(cmd->data & RXH_L4_B_2_3))
394 return -EINVAL;
395 reg_val = SXGBE_CORE_RSS_CTL_UDP4TE;
396 break;
397 case SCTP_V4_FLOW:
398 case AH_ESP_V4_FLOW:
399 case AH_V4_FLOW:
400 case ESP_V4_FLOW:
401 case AH_ESP_V6_FLOW:
402 case AH_V6_FLOW:
403 case ESP_V6_FLOW:
404 case SCTP_V6_FLOW:
405 case IPV4_FLOW:
406 case IPV6_FLOW:
407 if (!(cmd->data & RXH_IP_SRC) ||
408 !(cmd->data & RXH_IP_DST) ||
409 (cmd->data & RXH_L4_B_0_1) ||
410 (cmd->data & RXH_L4_B_2_3))
411 return -EINVAL;
412 reg_val = SXGBE_CORE_RSS_CTL_IP2TE;
413 break;
414 default:
415 return -EINVAL;
416 }
417
418
419 reg_val |= readl(priv->ioaddr + SXGBE_CORE_RSS_CTL_REG);
420 writel(reg_val, priv->ioaddr + SXGBE_CORE_RSS_CTL_REG);
421 readl(priv->ioaddr + SXGBE_CORE_RSS_CTL_REG);
422
423 return 0;
424}
425
426static int sxgbe_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
427{
428 struct sxgbe_priv_data *priv = netdev_priv(dev);
429 int ret = -EOPNOTSUPP;
430
431 switch (cmd->cmd) {
432 case ETHTOOL_SRXFH:
433 ret = sxgbe_set_rss_hash_opt(priv, cmd);
434 break;
435 default:
436 break;
437 }
438
439 return ret;
440}
441
442static void sxgbe_get_regs(struct net_device *dev,
443 struct ethtool_regs *regs, void *space)
444{
445 struct sxgbe_priv_data *priv = netdev_priv(dev);
446 u32 *reg_space = (u32 *)space;
447 int reg_offset;
448 int reg_ix = 0;
449 void __iomem *ioaddr = priv->ioaddr;
450
451 memset(reg_space, 0x0, REG_SPACE_SIZE);
452
453
454 for (reg_offset = START_MAC_REG_OFFSET;
455 reg_offset <= MAX_MAC_REG_OFFSET; reg_offset += 4) {
456 reg_space[reg_ix] = readl(ioaddr + reg_offset);
457 reg_ix++;
458 }
459
460
461 for (reg_offset = START_MTL_REG_OFFSET;
462 reg_offset <= MAX_MTL_REG_OFFSET; reg_offset += 4) {
463 reg_space[reg_ix] = readl(ioaddr + reg_offset);
464 reg_ix++;
465 }
466
467
468 for (reg_offset = START_DMA_REG_OFFSET;
469 reg_offset <= MAX_DMA_REG_OFFSET; reg_offset += 4) {
470 reg_space[reg_ix] = readl(ioaddr + reg_offset);
471 reg_ix++;
472 }
473
474 BUG_ON(reg_ix * 4 > REG_SPACE_SIZE);
475}
476
477static int sxgbe_get_regs_len(struct net_device *dev)
478{
479 return REG_SPACE_SIZE;
480}
481
482static const struct ethtool_ops sxgbe_ethtool_ops = {
483 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS,
484 .get_drvinfo = sxgbe_getdrvinfo,
485 .get_msglevel = sxgbe_getmsglevel,
486 .set_msglevel = sxgbe_setmsglevel,
487 .get_link = ethtool_op_get_link,
488 .get_strings = sxgbe_get_strings,
489 .get_ethtool_stats = sxgbe_get_ethtool_stats,
490 .get_sset_count = sxgbe_get_sset_count,
491 .get_channels = sxgbe_get_channels,
492 .get_coalesce = sxgbe_get_coalesce,
493 .set_coalesce = sxgbe_set_coalesce,
494 .get_rxnfc = sxgbe_get_rxnfc,
495 .set_rxnfc = sxgbe_set_rxnfc,
496 .get_regs = sxgbe_get_regs,
497 .get_regs_len = sxgbe_get_regs_len,
498 .get_eee = sxgbe_get_eee,
499 .set_eee = sxgbe_set_eee,
500 .get_link_ksettings = phy_ethtool_get_link_ksettings,
501 .set_link_ksettings = phy_ethtool_set_link_ksettings,
502};
503
504void sxgbe_set_ethtool_ops(struct net_device *netdev)
505{
506 netdev->ethtool_ops = &sxgbe_ethtool_ops;
507}
508
