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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
[mirror_ubuntu-zesty-kernel.git] / drivers / net / ethernet / freescale / gianfar_ethtool.c
1 /*
2 * drivers/net/ethernet/freescale/gianfar_ethtool.c
3 *
4 * Gianfar Ethernet Driver
5 * Ethtool support for Gianfar Enet
6 * Based on e1000 ethtool support
7 *
8 * Author: Andy Fleming
9 * Maintainer: Kumar Gala
10 * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com>
11 *
12 * Copyright 2003-2006, 2008-2009, 2011 Freescale Semiconductor, Inc.
13 *
14 * This software may be used and distributed according to
15 * the terms of the GNU Public License, Version 2, incorporated herein
16 * by reference.
17 */
18
19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
20
21 #include <linux/kernel.h>
22 #include <linux/string.h>
23 #include <linux/errno.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/netdevice.h>
27 #include <linux/etherdevice.h>
28 #include <linux/net_tstamp.h>
29 #include <linux/skbuff.h>
30 #include <linux/spinlock.h>
31 #include <linux/mm.h>
32
33 #include <asm/io.h>
34 #include <asm/irq.h>
35 #include <asm/uaccess.h>
36 #include <linux/module.h>
37 #include <linux/crc32.h>
38 #include <asm/types.h>
39 #include <linux/ethtool.h>
40 #include <linux/mii.h>
41 #include <linux/phy.h>
42 #include <linux/sort.h>
43 #include <linux/if_vlan.h>
44
45 #include "gianfar.h"
46
47 #define GFAR_MAX_COAL_USECS 0xffff
48 #define GFAR_MAX_COAL_FRAMES 0xff
49 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
50 u64 *buf);
51 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf);
52 static int gfar_gcoalesce(struct net_device *dev,
53 struct ethtool_coalesce *cvals);
54 static int gfar_scoalesce(struct net_device *dev,
55 struct ethtool_coalesce *cvals);
56 static void gfar_gringparam(struct net_device *dev,
57 struct ethtool_ringparam *rvals);
58 static int gfar_sringparam(struct net_device *dev,
59 struct ethtool_ringparam *rvals);
60 static void gfar_gdrvinfo(struct net_device *dev,
61 struct ethtool_drvinfo *drvinfo);
62
63 static const char stat_gstrings[][ETH_GSTRING_LEN] = {
64 "rx-large-frame-errors",
65 "rx-short-frame-errors",
66 "rx-non-octet-errors",
67 "rx-crc-errors",
68 "rx-overrun-errors",
69 "rx-busy-errors",
70 "rx-babbling-errors",
71 "rx-truncated-frames",
72 "ethernet-bus-error",
73 "tx-babbling-errors",
74 "tx-underrun-errors",
75 "rx-skb-missing-errors",
76 "tx-timeout-errors",
77 "tx-rx-64-frames",
78 "tx-rx-65-127-frames",
79 "tx-rx-128-255-frames",
80 "tx-rx-256-511-frames",
81 "tx-rx-512-1023-frames",
82 "tx-rx-1024-1518-frames",
83 "tx-rx-1519-1522-good-vlan",
84 "rx-bytes",
85 "rx-packets",
86 "rx-fcs-errors",
87 "receive-multicast-packet",
88 "receive-broadcast-packet",
89 "rx-control-frame-packets",
90 "rx-pause-frame-packets",
91 "rx-unknown-op-code",
92 "rx-alignment-error",
93 "rx-frame-length-error",
94 "rx-code-error",
95 "rx-carrier-sense-error",
96 "rx-undersize-packets",
97 "rx-oversize-packets",
98 "rx-fragmented-frames",
99 "rx-jabber-frames",
100 "rx-dropped-frames",
101 "tx-byte-counter",
102 "tx-packets",
103 "tx-multicast-packets",
104 "tx-broadcast-packets",
105 "tx-pause-control-frames",
106 "tx-deferral-packets",
107 "tx-excessive-deferral-packets",
108 "tx-single-collision-packets",
109 "tx-multiple-collision-packets",
110 "tx-late-collision-packets",
111 "tx-excessive-collision-packets",
112 "tx-total-collision",
113 "reserved",
114 "tx-dropped-frames",
115 "tx-jabber-frames",
116 "tx-fcs-errors",
117 "tx-control-frames",
118 "tx-oversize-frames",
119 "tx-undersize-frames",
120 "tx-fragmented-frames",
121 };
122
123 /* Fill in a buffer with the strings which correspond to the
124 * stats */
125 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
126 {
127 struct gfar_private *priv = netdev_priv(dev);
128
129 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
130 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);
131 else
132 memcpy(buf, stat_gstrings,
133 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);
134 }
135
136 /* Fill in an array of 64-bit statistics from various sources.
137 * This array will be appended to the end of the ethtool_stats
138 * structure, and returned to user space
139 */
140 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
141 u64 *buf)
142 {
143 int i;
144 struct gfar_private *priv = netdev_priv(dev);
145 struct gfar __iomem *regs = priv->gfargrp[0].regs;
146 atomic64_t *extra = (atomic64_t *)&priv->extra_stats;
147
148 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
149 buf[i] = atomic64_read(&extra[i]);
150
151 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
152 u32 __iomem *rmon = (u32 __iomem *) &regs->rmon;
153
154 for (; i < GFAR_STATS_LEN; i++, rmon++)
155 buf[i] = (u64) gfar_read(rmon);
156 }
157 }
158
159 static int gfar_sset_count(struct net_device *dev, int sset)
160 {
161 struct gfar_private *priv = netdev_priv(dev);
162
163 switch (sset) {
164 case ETH_SS_STATS:
165 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
166 return GFAR_STATS_LEN;
167 else
168 return GFAR_EXTRA_STATS_LEN;
169 default:
170 return -EOPNOTSUPP;
171 }
172 }
173
174 /* Fills in the drvinfo structure with some basic info */
175 static void gfar_gdrvinfo(struct net_device *dev,
176 struct ethtool_drvinfo *drvinfo)
177 {
178 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
179 strlcpy(drvinfo->version, gfar_driver_version,
180 sizeof(drvinfo->version));
181 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
182 strlcpy(drvinfo->bus_info, "N/A", sizeof(drvinfo->bus_info));
183 drvinfo->regdump_len = 0;
184 drvinfo->eedump_len = 0;
185 }
186
187
188 static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd)
189 {
190 struct gfar_private *priv = netdev_priv(dev);
191 struct phy_device *phydev = priv->phydev;
192
193 if (NULL == phydev)
194 return -ENODEV;
195
196 return phy_ethtool_sset(phydev, cmd);
197 }
198
199
200 /* Return the current settings in the ethtool_cmd structure */
201 static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
202 {
203 struct gfar_private *priv = netdev_priv(dev);
204 struct phy_device *phydev = priv->phydev;
205 struct gfar_priv_rx_q *rx_queue = NULL;
206 struct gfar_priv_tx_q *tx_queue = NULL;
207
208 if (NULL == phydev)
209 return -ENODEV;
210 tx_queue = priv->tx_queue[0];
211 rx_queue = priv->rx_queue[0];
212
213 /* etsec-1.7 and older versions have only one txic
214 * and rxic regs although they support multiple queues */
215 cmd->maxtxpkt = get_icft_value(tx_queue->txic);
216 cmd->maxrxpkt = get_icft_value(rx_queue->rxic);
217
218 return phy_ethtool_gset(phydev, cmd);
219 }
220
221 /* Return the length of the register structure */
222 static int gfar_reglen(struct net_device *dev)
223 {
224 return sizeof (struct gfar);
225 }
226
227 /* Return a dump of the GFAR register space */
228 static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs,
229 void *regbuf)
230 {
231 int i;
232 struct gfar_private *priv = netdev_priv(dev);
233 u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs;
234 u32 *buf = (u32 *) regbuf;
235
236 for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
237 buf[i] = gfar_read(&theregs[i]);
238 }
239
240 /* Convert microseconds to ethernet clock ticks, which changes
241 * depending on what speed the controller is running at */
242 static unsigned int gfar_usecs2ticks(struct gfar_private *priv,
243 unsigned int usecs)
244 {
245 unsigned int count;
246
247 /* The timer is different, depending on the interface speed */
248 switch (priv->phydev->speed) {
249 case SPEED_1000:
250 count = GFAR_GBIT_TIME;
251 break;
252 case SPEED_100:
253 count = GFAR_100_TIME;
254 break;
255 case SPEED_10:
256 default:
257 count = GFAR_10_TIME;
258 break;
259 }
260
261 /* Make sure we return a number greater than 0
262 * if usecs > 0 */
263 return (usecs * 1000 + count - 1) / count;
264 }
265
266 /* Convert ethernet clock ticks to microseconds */
267 static unsigned int gfar_ticks2usecs(struct gfar_private *priv,
268 unsigned int ticks)
269 {
270 unsigned int count;
271
272 /* The timer is different, depending on the interface speed */
273 switch (priv->phydev->speed) {
274 case SPEED_1000:
275 count = GFAR_GBIT_TIME;
276 break;
277 case SPEED_100:
278 count = GFAR_100_TIME;
279 break;
280 case SPEED_10:
281 default:
282 count = GFAR_10_TIME;
283 break;
284 }
285
286 /* Make sure we return a number greater than 0 */
287 /* if ticks is > 0 */
288 return (ticks * count) / 1000;
289 }
290
291 /* Get the coalescing parameters, and put them in the cvals
292 * structure. */
293 static int gfar_gcoalesce(struct net_device *dev,
294 struct ethtool_coalesce *cvals)
295 {
296 struct gfar_private *priv = netdev_priv(dev);
297 struct gfar_priv_rx_q *rx_queue = NULL;
298 struct gfar_priv_tx_q *tx_queue = NULL;
299 unsigned long rxtime;
300 unsigned long rxcount;
301 unsigned long txtime;
302 unsigned long txcount;
303
304 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
305 return -EOPNOTSUPP;
306
307 if (NULL == priv->phydev)
308 return -ENODEV;
309
310 rx_queue = priv->rx_queue[0];
311 tx_queue = priv->tx_queue[0];
312
313 rxtime = get_ictt_value(rx_queue->rxic);
314 rxcount = get_icft_value(rx_queue->rxic);
315 txtime = get_ictt_value(tx_queue->txic);
316 txcount = get_icft_value(tx_queue->txic);
317 cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime);
318 cvals->rx_max_coalesced_frames = rxcount;
319
320 cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime);
321 cvals->tx_max_coalesced_frames = txcount;
322
323 cvals->use_adaptive_rx_coalesce = 0;
324 cvals->use_adaptive_tx_coalesce = 0;
325
326 cvals->pkt_rate_low = 0;
327 cvals->rx_coalesce_usecs_low = 0;
328 cvals->rx_max_coalesced_frames_low = 0;
329 cvals->tx_coalesce_usecs_low = 0;
330 cvals->tx_max_coalesced_frames_low = 0;
331
332 /* When the packet rate is below pkt_rate_high but above
333 * pkt_rate_low (both measured in packets per second) the
334 * normal {rx,tx}_* coalescing parameters are used.
335 */
336
337 /* When the packet rate is (measured in packets per second)
338 * is above pkt_rate_high, the {rx,tx}_*_high parameters are
339 * used.
340 */
341 cvals->pkt_rate_high = 0;
342 cvals->rx_coalesce_usecs_high = 0;
343 cvals->rx_max_coalesced_frames_high = 0;
344 cvals->tx_coalesce_usecs_high = 0;
345 cvals->tx_max_coalesced_frames_high = 0;
346
347 /* How often to do adaptive coalescing packet rate sampling,
348 * measured in seconds. Must not be zero.
349 */
350 cvals->rate_sample_interval = 0;
351
352 return 0;
353 }
354
355 /* Change the coalescing values.
356 * Both cvals->*_usecs and cvals->*_frames have to be > 0
357 * in order for coalescing to be active
358 */
359 static int gfar_scoalesce(struct net_device *dev,
360 struct ethtool_coalesce *cvals)
361 {
362 struct gfar_private *priv = netdev_priv(dev);
363 int i, err = 0;
364
365 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
366 return -EOPNOTSUPP;
367
368 if (NULL == priv->phydev)
369 return -ENODEV;
370
371 /* Check the bounds of the values */
372 if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
373 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
374 GFAR_MAX_COAL_USECS);
375 return -EINVAL;
376 }
377
378 if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
379 netdev_info(dev, "Coalescing is limited to %d frames\n",
380 GFAR_MAX_COAL_FRAMES);
381 return -EINVAL;
382 }
383
384 /* Check the bounds of the values */
385 if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
386 netdev_info(dev, "Coalescing is limited to %d microseconds\n",
387 GFAR_MAX_COAL_USECS);
388 return -EINVAL;
389 }
390
391 if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
392 netdev_info(dev, "Coalescing is limited to %d frames\n",
393 GFAR_MAX_COAL_FRAMES);
394 return -EINVAL;
395 }
396
397 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
398 cpu_relax();
399
400 /* Set up rx coalescing */
401 if ((cvals->rx_coalesce_usecs == 0) ||
402 (cvals->rx_max_coalesced_frames == 0)) {
403 for (i = 0; i < priv->num_rx_queues; i++)
404 priv->rx_queue[i]->rxcoalescing = 0;
405 } else {
406 for (i = 0; i < priv->num_rx_queues; i++)
407 priv->rx_queue[i]->rxcoalescing = 1;
408 }
409
410 for (i = 0; i < priv->num_rx_queues; i++) {
411 priv->rx_queue[i]->rxic = mk_ic_value(
412 cvals->rx_max_coalesced_frames,
413 gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));
414 }
415
416 /* Set up tx coalescing */
417 if ((cvals->tx_coalesce_usecs == 0) ||
418 (cvals->tx_max_coalesced_frames == 0)) {
419 for (i = 0; i < priv->num_tx_queues; i++)
420 priv->tx_queue[i]->txcoalescing = 0;
421 } else {
422 for (i = 0; i < priv->num_tx_queues; i++)
423 priv->tx_queue[i]->txcoalescing = 1;
424 }
425
426 for (i = 0; i < priv->num_tx_queues; i++) {
427 priv->tx_queue[i]->txic = mk_ic_value(
428 cvals->tx_max_coalesced_frames,
429 gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
430 }
431
432 if (dev->flags & IFF_UP) {
433 stop_gfar(dev);
434 err = startup_gfar(dev);
435 } else {
436 gfar_mac_reset(priv);
437 }
438
439 clear_bit_unlock(GFAR_RESETTING, &priv->state);
440
441 return err;
442 }
443
444 /* Fills in rvals with the current ring parameters. Currently,
445 * rx, rx_mini, and rx_jumbo rings are the same size, as mini and
446 * jumbo are ignored by the driver */
447 static void gfar_gringparam(struct net_device *dev,
448 struct ethtool_ringparam *rvals)
449 {
450 struct gfar_private *priv = netdev_priv(dev);
451 struct gfar_priv_tx_q *tx_queue = NULL;
452 struct gfar_priv_rx_q *rx_queue = NULL;
453
454 tx_queue = priv->tx_queue[0];
455 rx_queue = priv->rx_queue[0];
456
457 rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
458 rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
459 rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
460 rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
461
462 /* Values changeable by the user. The valid values are
463 * in the range 1 to the "*_max_pending" counterpart above.
464 */
465 rvals->rx_pending = rx_queue->rx_ring_size;
466 rvals->rx_mini_pending = rx_queue->rx_ring_size;
467 rvals->rx_jumbo_pending = rx_queue->rx_ring_size;
468 rvals->tx_pending = tx_queue->tx_ring_size;
469 }
470
471 /* Change the current ring parameters, stopping the controller if
472 * necessary so that we don't mess things up while we're in motion.
473 */
474 static int gfar_sringparam(struct net_device *dev,
475 struct ethtool_ringparam *rvals)
476 {
477 struct gfar_private *priv = netdev_priv(dev);
478 int err = 0, i;
479
480 if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
481 return -EINVAL;
482
483 if (!is_power_of_2(rvals->rx_pending)) {
484 netdev_err(dev, "Ring sizes must be a power of 2\n");
485 return -EINVAL;
486 }
487
488 if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
489 return -EINVAL;
490
491 if (!is_power_of_2(rvals->tx_pending)) {
492 netdev_err(dev, "Ring sizes must be a power of 2\n");
493 return -EINVAL;
494 }
495
496 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
497 cpu_relax();
498
499 if (dev->flags & IFF_UP)
500 stop_gfar(dev);
501
502 /* Change the sizes */
503 for (i = 0; i < priv->num_rx_queues; i++)
504 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;
505
506 for (i = 0; i < priv->num_tx_queues; i++)
507 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;
508
509 /* Rebuild the rings with the new size */
510 if (dev->flags & IFF_UP)
511 err = startup_gfar(dev);
512
513 clear_bit_unlock(GFAR_RESETTING, &priv->state);
514
515 return err;
516 }
517
518 static void gfar_gpauseparam(struct net_device *dev,
519 struct ethtool_pauseparam *epause)
520 {
521 struct gfar_private *priv = netdev_priv(dev);
522
523 epause->autoneg = !!priv->pause_aneg_en;
524 epause->rx_pause = !!priv->rx_pause_en;
525 epause->tx_pause = !!priv->tx_pause_en;
526 }
527
528 static int gfar_spauseparam(struct net_device *dev,
529 struct ethtool_pauseparam *epause)
530 {
531 struct gfar_private *priv = netdev_priv(dev);
532 struct phy_device *phydev = priv->phydev;
533 struct gfar __iomem *regs = priv->gfargrp[0].regs;
534 u32 oldadv, newadv;
535
536 if (!phydev)
537 return -ENODEV;
538
539 if (!(phydev->supported & SUPPORTED_Pause) ||
540 (!(phydev->supported & SUPPORTED_Asym_Pause) &&
541 (epause->rx_pause != epause->tx_pause)))
542 return -EINVAL;
543
544 priv->rx_pause_en = priv->tx_pause_en = 0;
545 if (epause->rx_pause) {
546 priv->rx_pause_en = 1;
547
548 if (epause->tx_pause) {
549 priv->tx_pause_en = 1;
550 /* FLOW_CTRL_RX & TX */
551 newadv = ADVERTISED_Pause;
552 } else /* FLOW_CTLR_RX */
553 newadv = ADVERTISED_Pause | ADVERTISED_Asym_Pause;
554 } else if (epause->tx_pause) {
555 priv->tx_pause_en = 1;
556 /* FLOW_CTLR_TX */
557 newadv = ADVERTISED_Asym_Pause;
558 } else
559 newadv = 0;
560
561 if (epause->autoneg)
562 priv->pause_aneg_en = 1;
563 else
564 priv->pause_aneg_en = 0;
565
566 oldadv = phydev->advertising &
567 (ADVERTISED_Pause | ADVERTISED_Asym_Pause);
568 if (oldadv != newadv) {
569 phydev->advertising &=
570 ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
571 phydev->advertising |= newadv;
572 if (phydev->autoneg)
573 /* inform link partner of our
574 * new flow ctrl settings
575 */
576 return phy_start_aneg(phydev);
577
578 if (!epause->autoneg) {
579 u32 tempval;
580 tempval = gfar_read(&regs->maccfg1);
581 tempval &= ~(MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
582
583 priv->tx_actual_en = 0;
584 if (priv->tx_pause_en) {
585 priv->tx_actual_en = 1;
586 tempval |= MACCFG1_TX_FLOW;
587 }
588
589 if (priv->rx_pause_en)
590 tempval |= MACCFG1_RX_FLOW;
591 gfar_write(&regs->maccfg1, tempval);
592 }
593 }
594
595 return 0;
596 }
597
598 int gfar_set_features(struct net_device *dev, netdev_features_t features)
599 {
600 netdev_features_t changed = dev->features ^ features;
601 struct gfar_private *priv = netdev_priv(dev);
602 int err = 0;
603
604 if (!(changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
605 NETIF_F_RXCSUM)))
606 return 0;
607
608 while (test_and_set_bit_lock(GFAR_RESETTING, &priv->state))
609 cpu_relax();
610
611 dev->features = features;
612
613 if (dev->flags & IFF_UP) {
614 /* Now we take down the rings to rebuild them */
615 stop_gfar(dev);
616 err = startup_gfar(dev);
617 } else {
618 gfar_mac_reset(priv);
619 }
620
621 clear_bit_unlock(GFAR_RESETTING, &priv->state);
622
623 return err;
624 }
625
626 static uint32_t gfar_get_msglevel(struct net_device *dev)
627 {
628 struct gfar_private *priv = netdev_priv(dev);
629
630 return priv->msg_enable;
631 }
632
633 static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
634 {
635 struct gfar_private *priv = netdev_priv(dev);
636
637 priv->msg_enable = data;
638 }
639
640 #ifdef CONFIG_PM
641 static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
642 {
643 struct gfar_private *priv = netdev_priv(dev);
644
645 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) {
646 wol->supported = WAKE_MAGIC;
647 wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0;
648 } else {
649 wol->supported = wol->wolopts = 0;
650 }
651 }
652
653 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
654 {
655 struct gfar_private *priv = netdev_priv(dev);
656
657 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
658 wol->wolopts != 0)
659 return -EINVAL;
660
661 if (wol->wolopts & ~WAKE_MAGIC)
662 return -EINVAL;
663
664 device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC);
665
666 priv->wol_en = !!device_may_wakeup(&dev->dev);
667
668 return 0;
669 }
670 #endif
671
672 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow)
673 {
674 u32 fcr = 0x0, fpr = FPR_FILER_MASK;
675
676 if (ethflow & RXH_L2DA) {
677 fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH |
678 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
679 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
680 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
681 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
682 priv->cur_filer_idx = priv->cur_filer_idx - 1;
683
684 fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH |
685 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
686 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
687 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
688 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
689 priv->cur_filer_idx = priv->cur_filer_idx - 1;
690 }
691
692 if (ethflow & RXH_VLAN) {
693 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH |
694 RQFCR_AND | RQFCR_HASHTBL_0;
695 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
696 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
697 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
698 priv->cur_filer_idx = priv->cur_filer_idx - 1;
699 }
700
701 if (ethflow & RXH_IP_SRC) {
702 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
703 RQFCR_AND | RQFCR_HASHTBL_0;
704 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
705 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
706 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
707 priv->cur_filer_idx = priv->cur_filer_idx - 1;
708 }
709
710 if (ethflow & (RXH_IP_DST)) {
711 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
712 RQFCR_AND | RQFCR_HASHTBL_0;
713 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
714 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
715 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
716 priv->cur_filer_idx = priv->cur_filer_idx - 1;
717 }
718
719 if (ethflow & RXH_L3_PROTO) {
720 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH |
721 RQFCR_AND | RQFCR_HASHTBL_0;
722 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
723 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
724 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
725 priv->cur_filer_idx = priv->cur_filer_idx - 1;
726 }
727
728 if (ethflow & RXH_L4_B_0_1) {
729 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
730 RQFCR_AND | RQFCR_HASHTBL_0;
731 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
732 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
733 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
734 priv->cur_filer_idx = priv->cur_filer_idx - 1;
735 }
736
737 if (ethflow & RXH_L4_B_2_3) {
738 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
739 RQFCR_AND | RQFCR_HASHTBL_0;
740 priv->ftp_rqfpr[priv->cur_filer_idx] = fpr;
741 priv->ftp_rqfcr[priv->cur_filer_idx] = fcr;
742 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
743 priv->cur_filer_idx = priv->cur_filer_idx - 1;
744 }
745 }
746
747 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow,
748 u64 class)
749 {
750 unsigned int last_rule_idx = priv->cur_filer_idx;
751 unsigned int cmp_rqfpr;
752 unsigned int *local_rqfpr;
753 unsigned int *local_rqfcr;
754 int i = 0x0, k = 0x0;
755 int j = MAX_FILER_IDX, l = 0x0;
756 int ret = 1;
757
758 local_rqfpr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
759 GFP_KERNEL);
760 local_rqfcr = kmalloc_array(MAX_FILER_IDX + 1, sizeof(unsigned int),
761 GFP_KERNEL);
762 if (!local_rqfpr || !local_rqfcr) {
763 ret = 0;
764 goto err;
765 }
766
767 switch (class) {
768 case TCP_V4_FLOW:
769 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP;
770 break;
771 case UDP_V4_FLOW:
772 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP;
773 break;
774 case TCP_V6_FLOW:
775 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP;
776 break;
777 case UDP_V6_FLOW:
778 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP;
779 break;
780 default:
781 netdev_err(priv->ndev,
782 "Right now this class is not supported\n");
783 ret = 0;
784 goto err;
785 }
786
787 for (i = 0; i < MAX_FILER_IDX + 1; i++) {
788 local_rqfpr[j] = priv->ftp_rqfpr[i];
789 local_rqfcr[j] = priv->ftp_rqfcr[i];
790 j--;
791 if ((priv->ftp_rqfcr[i] ==
792 (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) &&
793 (priv->ftp_rqfpr[i] == cmp_rqfpr))
794 break;
795 }
796
797 if (i == MAX_FILER_IDX + 1) {
798 netdev_err(priv->ndev,
799 "No parse rule found, can't create hash rules\n");
800 ret = 0;
801 goto err;
802 }
803
804 /* If a match was found, then it begins the starting of a cluster rule
805 * if it was already programmed, we need to overwrite these rules
806 */
807 for (l = i+1; l < MAX_FILER_IDX; l++) {
808 if ((priv->ftp_rqfcr[l] & RQFCR_CLE) &&
809 !(priv->ftp_rqfcr[l] & RQFCR_AND)) {
810 priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |
811 RQFCR_HASHTBL_0 | RQFCR_PID_MASK;
812 priv->ftp_rqfpr[l] = FPR_FILER_MASK;
813 gfar_write_filer(priv, l, priv->ftp_rqfcr[l],
814 priv->ftp_rqfpr[l]);
815 break;
816 }
817
818 if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) &&
819 (priv->ftp_rqfcr[l] & RQFCR_AND))
820 continue;
821 else {
822 local_rqfpr[j] = priv->ftp_rqfpr[l];
823 local_rqfcr[j] = priv->ftp_rqfcr[l];
824 j--;
825 }
826 }
827
828 priv->cur_filer_idx = l - 1;
829 last_rule_idx = l;
830
831 /* hash rules */
832 ethflow_to_filer_rules(priv, ethflow);
833
834 /* Write back the popped out rules again */
835 for (k = j+1; k < MAX_FILER_IDX; k++) {
836 priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];
837 priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k];
838 gfar_write_filer(priv, priv->cur_filer_idx,
839 local_rqfcr[k], local_rqfpr[k]);
840 if (!priv->cur_filer_idx)
841 break;
842 priv->cur_filer_idx = priv->cur_filer_idx - 1;
843 }
844
845 err:
846 kfree(local_rqfcr);
847 kfree(local_rqfpr);
848 return ret;
849 }
850
851 static int gfar_set_hash_opts(struct gfar_private *priv,
852 struct ethtool_rxnfc *cmd)
853 {
854 /* write the filer rules here */
855 if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))
856 return -EINVAL;
857
858 return 0;
859 }
860
861 static int gfar_check_filer_hardware(struct gfar_private *priv)
862 {
863 struct gfar __iomem *regs = priv->gfargrp[0].regs;
864 u32 i;
865
866 /* Check if we are in FIFO mode */
867 i = gfar_read(&regs->ecntrl);
868 i &= ECNTRL_FIFM;
869 if (i == ECNTRL_FIFM) {
870 netdev_notice(priv->ndev, "Interface in FIFO mode\n");
871 i = gfar_read(&regs->rctrl);
872 i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM;
873 if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) {
874 netdev_info(priv->ndev,
875 "Receive Queue Filtering enabled\n");
876 } else {
877 netdev_warn(priv->ndev,
878 "Receive Queue Filtering disabled\n");
879 return -EOPNOTSUPP;
880 }
881 }
882 /* Or in standard mode */
883 else {
884 i = gfar_read(&regs->rctrl);
885 i &= RCTRL_PRSDEP_MASK;
886 if (i == RCTRL_PRSDEP_MASK) {
887 netdev_info(priv->ndev,
888 "Receive Queue Filtering enabled\n");
889 } else {
890 netdev_warn(priv->ndev,
891 "Receive Queue Filtering disabled\n");
892 return -EOPNOTSUPP;
893 }
894 }
895
896 /* Sets the properties for arbitrary filer rule
897 * to the first 4 Layer 4 Bytes
898 */
899 gfar_write(&regs->rbifx, 0xC0C1C2C3);
900 return 0;
901 }
902
903 /* Write a mask to filer cache */
904 static void gfar_set_mask(u32 mask, struct filer_table *tab)
905 {
906 tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT;
907 tab->fe[tab->index].prop = mask;
908 tab->index++;
909 }
910
911 /* Sets parse bits (e.g. IP or TCP) */
912 static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab)
913 {
914 gfar_set_mask(mask, tab);
915 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE |
916 RQFCR_AND;
917 tab->fe[tab->index].prop = value;
918 tab->index++;
919 }
920
921 static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag,
922 struct filer_table *tab)
923 {
924 gfar_set_mask(mask, tab);
925 tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag;
926 tab->fe[tab->index].prop = value;
927 tab->index++;
928 }
929
930 /* For setting a tuple of value and mask of type flag
931 * Example:
932 * IP-Src = 10.0.0.0/255.0.0.0
933 * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4
934 *
935 * Ethtool gives us a value=0 and mask=~0 for don't care a tuple
936 * For a don't care mask it gives us a 0
937 *
938 * The check if don't care and the mask adjustment if mask=0 is done for VLAN
939 * and MAC stuff on an upper level (due to missing information on this level).
940 * For these guys we can discard them if they are value=0 and mask=0.
941 *
942 * Further the all masks are one-padded for better hardware efficiency.
943 */
944 static void gfar_set_attribute(u32 value, u32 mask, u32 flag,
945 struct filer_table *tab)
946 {
947 switch (flag) {
948 /* 3bit */
949 case RQFCR_PID_PRI:
950 if (!(value | mask))
951 return;
952 mask |= RQFCR_PID_PRI_MASK;
953 break;
954 /* 8bit */
955 case RQFCR_PID_L4P:
956 case RQFCR_PID_TOS:
957 if (!~(mask | RQFCR_PID_L4P_MASK))
958 return;
959 if (!mask)
960 mask = ~0;
961 else
962 mask |= RQFCR_PID_L4P_MASK;
963 break;
964 /* 12bit */
965 case RQFCR_PID_VID:
966 if (!(value | mask))
967 return;
968 mask |= RQFCR_PID_VID_MASK;
969 break;
970 /* 16bit */
971 case RQFCR_PID_DPT:
972 case RQFCR_PID_SPT:
973 case RQFCR_PID_ETY:
974 if (!~(mask | RQFCR_PID_PORT_MASK))
975 return;
976 if (!mask)
977 mask = ~0;
978 else
979 mask |= RQFCR_PID_PORT_MASK;
980 break;
981 /* 24bit */
982 case RQFCR_PID_DAH:
983 case RQFCR_PID_DAL:
984 case RQFCR_PID_SAH:
985 case RQFCR_PID_SAL:
986 if (!(value | mask))
987 return;
988 mask |= RQFCR_PID_MAC_MASK;
989 break;
990 /* for all real 32bit masks */
991 default:
992 if (!~mask)
993 return;
994 if (!mask)
995 mask = ~0;
996 break;
997 }
998 gfar_set_general_attribute(value, mask, flag, tab);
999 }
1000
1001 /* Translates value and mask for UDP, TCP or SCTP */
1002 static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value,
1003 struct ethtool_tcpip4_spec *mask,
1004 struct filer_table *tab)
1005 {
1006 gfar_set_attribute(be32_to_cpu(value->ip4src),
1007 be32_to_cpu(mask->ip4src),
1008 RQFCR_PID_SIA, tab);
1009 gfar_set_attribute(be32_to_cpu(value->ip4dst),
1010 be32_to_cpu(mask->ip4dst),
1011 RQFCR_PID_DIA, tab);
1012 gfar_set_attribute(be16_to_cpu(value->pdst),
1013 be16_to_cpu(mask->pdst),
1014 RQFCR_PID_DPT, tab);
1015 gfar_set_attribute(be16_to_cpu(value->psrc),
1016 be16_to_cpu(mask->psrc),
1017 RQFCR_PID_SPT, tab);
1018 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
1019 }
1020
1021 /* Translates value and mask for RAW-IP4 */
1022 static void gfar_set_user_ip(struct ethtool_usrip4_spec *value,
1023 struct ethtool_usrip4_spec *mask,
1024 struct filer_table *tab)
1025 {
1026 gfar_set_attribute(be32_to_cpu(value->ip4src),
1027 be32_to_cpu(mask->ip4src),
1028 RQFCR_PID_SIA, tab);
1029 gfar_set_attribute(be32_to_cpu(value->ip4dst),
1030 be32_to_cpu(mask->ip4dst),
1031 RQFCR_PID_DIA, tab);
1032 gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab);
1033 gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab);
1034 gfar_set_attribute(be32_to_cpu(value->l4_4_bytes),
1035 be32_to_cpu(mask->l4_4_bytes),
1036 RQFCR_PID_ARB, tab);
1037
1038 }
1039
1040 /* Translates value and mask for ETHER spec */
1041 static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask,
1042 struct filer_table *tab)
1043 {
1044 u32 upper_temp_mask = 0;
1045 u32 lower_temp_mask = 0;
1046
1047 /* Source address */
1048 if (!is_broadcast_ether_addr(mask->h_source)) {
1049 if (is_zero_ether_addr(mask->h_source)) {
1050 upper_temp_mask = 0xFFFFFFFF;
1051 lower_temp_mask = 0xFFFFFFFF;
1052 } else {
1053 upper_temp_mask = mask->h_source[0] << 16 |
1054 mask->h_source[1] << 8 |
1055 mask->h_source[2];
1056 lower_temp_mask = mask->h_source[3] << 16 |
1057 mask->h_source[4] << 8 |
1058 mask->h_source[5];
1059 }
1060 /* Upper 24bit */
1061 gfar_set_attribute(value->h_source[0] << 16 |
1062 value->h_source[1] << 8 |
1063 value->h_source[2],
1064 upper_temp_mask, RQFCR_PID_SAH, tab);
1065 /* And the same for the lower part */
1066 gfar_set_attribute(value->h_source[3] << 16 |
1067 value->h_source[4] << 8 |
1068 value->h_source[5],
1069 lower_temp_mask, RQFCR_PID_SAL, tab);
1070 }
1071 /* Destination address */
1072 if (!is_broadcast_ether_addr(mask->h_dest)) {
1073 /* Special for destination is limited broadcast */
1074 if ((is_broadcast_ether_addr(value->h_dest) &&
1075 is_zero_ether_addr(mask->h_dest))) {
1076 gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab);
1077 } else {
1078 if (is_zero_ether_addr(mask->h_dest)) {
1079 upper_temp_mask = 0xFFFFFFFF;
1080 lower_temp_mask = 0xFFFFFFFF;
1081 } else {
1082 upper_temp_mask = mask->h_dest[0] << 16 |
1083 mask->h_dest[1] << 8 |
1084 mask->h_dest[2];
1085 lower_temp_mask = mask->h_dest[3] << 16 |
1086 mask->h_dest[4] << 8 |
1087 mask->h_dest[5];
1088 }
1089
1090 /* Upper 24bit */
1091 gfar_set_attribute(value->h_dest[0] << 16 |
1092 value->h_dest[1] << 8 |
1093 value->h_dest[2],
1094 upper_temp_mask, RQFCR_PID_DAH, tab);
1095 /* And the same for the lower part */
1096 gfar_set_attribute(value->h_dest[3] << 16 |
1097 value->h_dest[4] << 8 |
1098 value->h_dest[5],
1099 lower_temp_mask, RQFCR_PID_DAL, tab);
1100 }
1101 }
1102
1103 gfar_set_attribute(be16_to_cpu(value->h_proto),
1104 be16_to_cpu(mask->h_proto),
1105 RQFCR_PID_ETY, tab);
1106 }
1107
1108 static inline u32 vlan_tci_vid(struct ethtool_rx_flow_spec *rule)
1109 {
1110 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_VID_MASK;
1111 }
1112
1113 static inline u32 vlan_tci_vidm(struct ethtool_rx_flow_spec *rule)
1114 {
1115 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_VID_MASK;
1116 }
1117
1118 static inline u32 vlan_tci_cfi(struct ethtool_rx_flow_spec *rule)
1119 {
1120 return be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_CFI_MASK;
1121 }
1122
1123 static inline u32 vlan_tci_cfim(struct ethtool_rx_flow_spec *rule)
1124 {
1125 return be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_CFI_MASK;
1126 }
1127
1128 static inline u32 vlan_tci_prio(struct ethtool_rx_flow_spec *rule)
1129 {
1130 return (be16_to_cpu(rule->h_ext.vlan_tci) & VLAN_PRIO_MASK) >>
1131 VLAN_PRIO_SHIFT;
1132 }
1133
1134 static inline u32 vlan_tci_priom(struct ethtool_rx_flow_spec *rule)
1135 {
1136 return (be16_to_cpu(rule->m_ext.vlan_tci) & VLAN_PRIO_MASK) >>
1137 VLAN_PRIO_SHIFT;
1138 }
1139
1140 /* Convert a rule to binary filter format of gianfar */
1141 static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule,
1142 struct filer_table *tab)
1143 {
1144 u32 vlan = 0, vlan_mask = 0;
1145 u32 id = 0, id_mask = 0;
1146 u32 cfi = 0, cfi_mask = 0;
1147 u32 prio = 0, prio_mask = 0;
1148 u32 old_index = tab->index;
1149
1150 /* Check if vlan is wanted */
1151 if ((rule->flow_type & FLOW_EXT) &&
1152 (rule->m_ext.vlan_tci != cpu_to_be16(0xFFFF))) {
1153 if (!rule->m_ext.vlan_tci)
1154 rule->m_ext.vlan_tci = cpu_to_be16(0xFFFF);
1155
1156 vlan = RQFPR_VLN;
1157 vlan_mask = RQFPR_VLN;
1158
1159 /* Separate the fields */
1160 id = vlan_tci_vid(rule);
1161 id_mask = vlan_tci_vidm(rule);
1162 cfi = vlan_tci_cfi(rule);
1163 cfi_mask = vlan_tci_cfim(rule);
1164 prio = vlan_tci_prio(rule);
1165 prio_mask = vlan_tci_priom(rule);
1166
1167 if (cfi == VLAN_TAG_PRESENT && cfi_mask == VLAN_TAG_PRESENT) {
1168 vlan |= RQFPR_CFI;
1169 vlan_mask |= RQFPR_CFI;
1170 } else if (cfi != VLAN_TAG_PRESENT &&
1171 cfi_mask == VLAN_TAG_PRESENT) {
1172 vlan_mask |= RQFPR_CFI;
1173 }
1174 }
1175
1176 switch (rule->flow_type & ~FLOW_EXT) {
1177 case TCP_V4_FLOW:
1178 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan,
1179 RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab);
1180 gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec,
1181 &rule->m_u.tcp_ip4_spec, tab);
1182 break;
1183 case UDP_V4_FLOW:
1184 gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan,
1185 RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab);
1186 gfar_set_basic_ip(&rule->h_u.udp_ip4_spec,
1187 &rule->m_u.udp_ip4_spec, tab);
1188 break;
1189 case SCTP_V4_FLOW:
1190 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1191 tab);
1192 gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab);
1193 gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u,
1194 (struct ethtool_tcpip4_spec *)&rule->m_u,
1195 tab);
1196 break;
1197 case IP_USER_FLOW:
1198 gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask,
1199 tab);
1200 gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u,
1201 (struct ethtool_usrip4_spec *) &rule->m_u,
1202 tab);
1203 break;
1204 case ETHER_FLOW:
1205 if (vlan)
1206 gfar_set_parse_bits(vlan, vlan_mask, tab);
1207 gfar_set_ether((struct ethhdr *) &rule->h_u,
1208 (struct ethhdr *) &rule->m_u, tab);
1209 break;
1210 default:
1211 return -1;
1212 }
1213
1214 /* Set the vlan attributes in the end */
1215 if (vlan) {
1216 gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab);
1217 gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab);
1218 }
1219
1220 /* If there has been nothing written till now, it must be a default */
1221 if (tab->index == old_index) {
1222 gfar_set_mask(0xFFFFFFFF, tab);
1223 tab->fe[tab->index].ctrl = 0x20;
1224 tab->fe[tab->index].prop = 0x0;
1225 tab->index++;
1226 }
1227
1228 /* Remove last AND */
1229 tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND);
1230
1231 /* Specify which queue to use or to drop */
1232 if (rule->ring_cookie == RX_CLS_FLOW_DISC)
1233 tab->fe[tab->index - 1].ctrl |= RQFCR_RJE;
1234 else
1235 tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10);
1236
1237 /* Only big enough entries can be clustered */
1238 if (tab->index > (old_index + 2)) {
1239 tab->fe[old_index + 1].ctrl |= RQFCR_CLE;
1240 tab->fe[tab->index - 1].ctrl |= RQFCR_CLE;
1241 }
1242
1243 /* In rare cases the cache can be full while there is
1244 * free space in hw
1245 */
1246 if (tab->index > MAX_FILER_CACHE_IDX - 1)
1247 return -EBUSY;
1248
1249 return 0;
1250 }
1251
1252 /* Write the bit-pattern from software's buffer to hardware registers */
1253 static int gfar_write_filer_table(struct gfar_private *priv,
1254 struct filer_table *tab)
1255 {
1256 u32 i = 0;
1257 if (tab->index > MAX_FILER_IDX - 1)
1258 return -EBUSY;
1259
1260 /* Fill regular entries */
1261 for (; i < MAX_FILER_IDX && (tab->fe[i].ctrl | tab->fe[i].prop); i++)
1262 gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop);
1263 /* Fill the rest with fall-troughs */
1264 for (; i < MAX_FILER_IDX; i++)
1265 gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF);
1266 /* Last entry must be default accept
1267 * because that's what people expect
1268 */
1269 gfar_write_filer(priv, i, 0x20, 0x0);
1270
1271 return 0;
1272 }
1273
1274 static int gfar_check_capability(struct ethtool_rx_flow_spec *flow,
1275 struct gfar_private *priv)
1276 {
1277
1278 if (flow->flow_type & FLOW_EXT) {
1279 if (~flow->m_ext.data[0] || ~flow->m_ext.data[1])
1280 netdev_warn(priv->ndev,
1281 "User-specific data not supported!\n");
1282 if (~flow->m_ext.vlan_etype)
1283 netdev_warn(priv->ndev,
1284 "VLAN-etype not supported!\n");
1285 }
1286 if (flow->flow_type == IP_USER_FLOW)
1287 if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4)
1288 netdev_warn(priv->ndev,
1289 "IP-Version differing from IPv4 not supported!\n");
1290
1291 return 0;
1292 }
1293
1294 static int gfar_process_filer_changes(struct gfar_private *priv)
1295 {
1296 struct ethtool_flow_spec_container *j;
1297 struct filer_table *tab;
1298 s32 ret = 0;
1299
1300 /* So index is set to zero, too! */
1301 tab = kzalloc(sizeof(*tab), GFP_KERNEL);
1302 if (tab == NULL)
1303 return -ENOMEM;
1304
1305 /* Now convert the existing filer data from flow_spec into
1306 * filer tables binary format
1307 */
1308 list_for_each_entry(j, &priv->rx_list.list, list) {
1309 ret = gfar_convert_to_filer(&j->fs, tab);
1310 if (ret == -EBUSY) {
1311 netdev_err(priv->ndev,
1312 "Rule not added: No free space!\n");
1313 goto end;
1314 }
1315 if (ret == -1) {
1316 netdev_err(priv->ndev,
1317 "Rule not added: Unsupported Flow-type!\n");
1318 goto end;
1319 }
1320 }
1321
1322 /* Write everything to hardware */
1323 ret = gfar_write_filer_table(priv, tab);
1324 if (ret == -EBUSY) {
1325 netdev_err(priv->ndev, "Rule not added: No free space!\n");
1326 goto end;
1327 }
1328
1329 end:
1330 kfree(tab);
1331 return ret;
1332 }
1333
1334 static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow)
1335 {
1336 u32 i = 0;
1337
1338 for (i = 0; i < sizeof(flow->m_u); i++)
1339 flow->m_u.hdata[i] ^= 0xFF;
1340
1341 flow->m_ext.vlan_etype ^= cpu_to_be16(0xFFFF);
1342 flow->m_ext.vlan_tci ^= cpu_to_be16(0xFFFF);
1343 flow->m_ext.data[0] ^= cpu_to_be32(~0);
1344 flow->m_ext.data[1] ^= cpu_to_be32(~0);
1345 }
1346
1347 static int gfar_add_cls(struct gfar_private *priv,
1348 struct ethtool_rx_flow_spec *flow)
1349 {
1350 struct ethtool_flow_spec_container *temp, *comp;
1351 int ret = 0;
1352
1353 temp = kmalloc(sizeof(*temp), GFP_KERNEL);
1354 if (temp == NULL)
1355 return -ENOMEM;
1356 memcpy(&temp->fs, flow, sizeof(temp->fs));
1357
1358 gfar_invert_masks(&temp->fs);
1359 ret = gfar_check_capability(&temp->fs, priv);
1360 if (ret)
1361 goto clean_mem;
1362 /* Link in the new element at the right @location */
1363 if (list_empty(&priv->rx_list.list)) {
1364 ret = gfar_check_filer_hardware(priv);
1365 if (ret != 0)
1366 goto clean_mem;
1367 list_add(&temp->list, &priv->rx_list.list);
1368 goto process;
1369 } else {
1370 list_for_each_entry(comp, &priv->rx_list.list, list) {
1371 if (comp->fs.location > flow->location) {
1372 list_add_tail(&temp->list, &comp->list);
1373 goto process;
1374 }
1375 if (comp->fs.location == flow->location) {
1376 netdev_err(priv->ndev,
1377 "Rule not added: ID %d not free!\n",
1378 flow->location);
1379 ret = -EBUSY;
1380 goto clean_mem;
1381 }
1382 }
1383 list_add_tail(&temp->list, &priv->rx_list.list);
1384 }
1385
1386 process:
1387 priv->rx_list.count++;
1388 ret = gfar_process_filer_changes(priv);
1389 if (ret)
1390 goto clean_list;
1391 return ret;
1392
1393 clean_list:
1394 priv->rx_list.count--;
1395 list_del(&temp->list);
1396 clean_mem:
1397 kfree(temp);
1398 return ret;
1399 }
1400
1401 static int gfar_del_cls(struct gfar_private *priv, u32 loc)
1402 {
1403 struct ethtool_flow_spec_container *comp;
1404 u32 ret = -EINVAL;
1405
1406 if (list_empty(&priv->rx_list.list))
1407 return ret;
1408
1409 list_for_each_entry(comp, &priv->rx_list.list, list) {
1410 if (comp->fs.location == loc) {
1411 list_del(&comp->list);
1412 kfree(comp);
1413 priv->rx_list.count--;
1414 gfar_process_filer_changes(priv);
1415 ret = 0;
1416 break;
1417 }
1418 }
1419
1420 return ret;
1421 }
1422
1423 static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd)
1424 {
1425 struct ethtool_flow_spec_container *comp;
1426 u32 ret = -EINVAL;
1427
1428 list_for_each_entry(comp, &priv->rx_list.list, list) {
1429 if (comp->fs.location == cmd->fs.location) {
1430 memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs));
1431 gfar_invert_masks(&cmd->fs);
1432 ret = 0;
1433 break;
1434 }
1435 }
1436
1437 return ret;
1438 }
1439
1440 static int gfar_get_cls_all(struct gfar_private *priv,
1441 struct ethtool_rxnfc *cmd, u32 *rule_locs)
1442 {
1443 struct ethtool_flow_spec_container *comp;
1444 u32 i = 0;
1445
1446 list_for_each_entry(comp, &priv->rx_list.list, list) {
1447 if (i == cmd->rule_cnt)
1448 return -EMSGSIZE;
1449 rule_locs[i] = comp->fs.location;
1450 i++;
1451 }
1452
1453 cmd->data = MAX_FILER_IDX;
1454 cmd->rule_cnt = i;
1455
1456 return 0;
1457 }
1458
1459 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1460 {
1461 struct gfar_private *priv = netdev_priv(dev);
1462 int ret = 0;
1463
1464 if (test_bit(GFAR_RESETTING, &priv->state))
1465 return -EBUSY;
1466
1467 mutex_lock(&priv->rx_queue_access);
1468
1469 switch (cmd->cmd) {
1470 case ETHTOOL_SRXFH:
1471 ret = gfar_set_hash_opts(priv, cmd);
1472 break;
1473 case ETHTOOL_SRXCLSRLINS:
1474 if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC &&
1475 cmd->fs.ring_cookie >= priv->num_rx_queues) ||
1476 cmd->fs.location >= MAX_FILER_IDX) {
1477 ret = -EINVAL;
1478 break;
1479 }
1480 ret = gfar_add_cls(priv, &cmd->fs);
1481 break;
1482 case ETHTOOL_SRXCLSRLDEL:
1483 ret = gfar_del_cls(priv, cmd->fs.location);
1484 break;
1485 default:
1486 ret = -EINVAL;
1487 }
1488
1489 mutex_unlock(&priv->rx_queue_access);
1490
1491 return ret;
1492 }
1493
1494 static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1495 u32 *rule_locs)
1496 {
1497 struct gfar_private *priv = netdev_priv(dev);
1498 int ret = 0;
1499
1500 switch (cmd->cmd) {
1501 case ETHTOOL_GRXRINGS:
1502 cmd->data = priv->num_rx_queues;
1503 break;
1504 case ETHTOOL_GRXCLSRLCNT:
1505 cmd->rule_cnt = priv->rx_list.count;
1506 break;
1507 case ETHTOOL_GRXCLSRULE:
1508 ret = gfar_get_cls(priv, cmd);
1509 break;
1510 case ETHTOOL_GRXCLSRLALL:
1511 ret = gfar_get_cls_all(priv, cmd, rule_locs);
1512 break;
1513 default:
1514 ret = -EINVAL;
1515 break;
1516 }
1517
1518 return ret;
1519 }
1520
1521 int gfar_phc_index = -1;
1522 EXPORT_SYMBOL(gfar_phc_index);
1523
1524 static int gfar_get_ts_info(struct net_device *dev,
1525 struct ethtool_ts_info *info)
1526 {
1527 struct gfar_private *priv = netdev_priv(dev);
1528
1529 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) {
1530 info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
1531 SOF_TIMESTAMPING_SOFTWARE;
1532 info->phc_index = -1;
1533 return 0;
1534 }
1535 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
1536 SOF_TIMESTAMPING_RX_HARDWARE |
1537 SOF_TIMESTAMPING_RAW_HARDWARE;
1538 info->phc_index = gfar_phc_index;
1539 info->tx_types = (1 << HWTSTAMP_TX_OFF) |
1540 (1 << HWTSTAMP_TX_ON);
1541 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
1542 (1 << HWTSTAMP_FILTER_ALL);
1543 return 0;
1544 }
1545
1546 const struct ethtool_ops gfar_ethtool_ops = {
1547 .get_settings = gfar_gsettings,
1548 .set_settings = gfar_ssettings,
1549 .get_drvinfo = gfar_gdrvinfo,
1550 .get_regs_len = gfar_reglen,
1551 .get_regs = gfar_get_regs,
1552 .get_link = ethtool_op_get_link,
1553 .get_coalesce = gfar_gcoalesce,
1554 .set_coalesce = gfar_scoalesce,
1555 .get_ringparam = gfar_gringparam,
1556 .set_ringparam = gfar_sringparam,
1557 .get_pauseparam = gfar_gpauseparam,
1558 .set_pauseparam = gfar_spauseparam,
1559 .get_strings = gfar_gstrings,
1560 .get_sset_count = gfar_sset_count,
1561 .get_ethtool_stats = gfar_fill_stats,
1562 .get_msglevel = gfar_get_msglevel,
1563 .set_msglevel = gfar_set_msglevel,
1564 #ifdef CONFIG_PM
1565 .get_wol = gfar_get_wol,
1566 .set_wol = gfar_set_wol,
1567 #endif
1568 .set_rxnfc = gfar_set_nfc,
1569 .get_rxnfc = gfar_get_nfc,
1570 .get_ts_info = gfar_get_ts_info,
1571 };
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