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[linux-2.6.git] / drivers / net / gianfar_ethtool.c
1 /*
2  *  drivers/net/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 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 #include <linux/kernel.h>
20 #include <linux/string.h>
21 #include <linux/errno.h>
22 #include <linux/interrupt.h>
23 #include <linux/init.h>
24 #include <linux/delay.h>
25 #include <linux/netdevice.h>
26 #include <linux/etherdevice.h>
27 #include <linux/skbuff.h>
28 #include <linux/spinlock.h>
29 #include <linux/mm.h>
30
31 #include <asm/io.h>
32 #include <asm/irq.h>
33 #include <asm/uaccess.h>
34 #include <linux/module.h>
35 #include <linux/crc32.h>
36 #include <asm/types.h>
37 #include <linux/ethtool.h>
38 #include <linux/mii.h>
39 #include <linux/phy.h>
40
41 #include "gianfar.h"
42
43 extern void gfar_start(struct net_device *dev);
44 extern int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit);
45
46 #define GFAR_MAX_COAL_USECS 0xffff
47 #define GFAR_MAX_COAL_FRAMES 0xff
48 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
49                      u64 * buf);
50 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf);
51 static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
52 static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
53 static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
54 static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
55 static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo);
56
57 static char stat_gstrings[][ETH_GSTRING_LEN] = {
58         "rx-dropped-by-kernel",
59         "rx-large-frame-errors",
60         "rx-short-frame-errors",
61         "rx-non-octet-errors",
62         "rx-crc-errors",
63         "rx-overrun-errors",
64         "rx-busy-errors",
65         "rx-babbling-errors",
66         "rx-truncated-frames",
67         "ethernet-bus-error",
68         "tx-babbling-errors",
69         "tx-underrun-errors",
70         "rx-skb-missing-errors",
71         "tx-timeout-errors",
72         "tx-rx-64-frames",
73         "tx-rx-65-127-frames",
74         "tx-rx-128-255-frames",
75         "tx-rx-256-511-frames",
76         "tx-rx-512-1023-frames",
77         "tx-rx-1024-1518-frames",
78         "tx-rx-1519-1522-good-vlan",
79         "rx-bytes",
80         "rx-packets",
81         "rx-fcs-errors",
82         "receive-multicast-packet",
83         "receive-broadcast-packet",
84         "rx-control-frame-packets",
85         "rx-pause-frame-packets",
86         "rx-unknown-op-code",
87         "rx-alignment-error",
88         "rx-frame-length-error",
89         "rx-code-error",
90         "rx-carrier-sense-error",
91         "rx-undersize-packets",
92         "rx-oversize-packets",
93         "rx-fragmented-frames",
94         "rx-jabber-frames",
95         "rx-dropped-frames",
96         "tx-byte-counter",
97         "tx-packets",
98         "tx-multicast-packets",
99         "tx-broadcast-packets",
100         "tx-pause-control-frames",
101         "tx-deferral-packets",
102         "tx-excessive-deferral-packets",
103         "tx-single-collision-packets",
104         "tx-multiple-collision-packets",
105         "tx-late-collision-packets",
106         "tx-excessive-collision-packets",
107         "tx-total-collision",
108         "reserved",
109         "tx-dropped-frames",
110         "tx-jabber-frames",
111         "tx-fcs-errors",
112         "tx-control-frames",
113         "tx-oversize-frames",
114         "tx-undersize-frames",
115         "tx-fragmented-frames",
116 };
117
118 /* Fill in a buffer with the strings which correspond to the
119  * stats */
120 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
121 {
122         struct gfar_private *priv = netdev_priv(dev);
123
124         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
125                 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);
126         else
127                 memcpy(buf, stat_gstrings,
128                                 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);
129 }
130
131 /* Fill in an array of 64-bit statistics from various sources.
132  * This array will be appended to the end of the ethtool_stats
133  * structure, and returned to user space
134  */
135 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf)
136 {
137         int i;
138         struct gfar_private *priv = netdev_priv(dev);
139         struct gfar __iomem *regs = priv->gfargrp[0].regs;
140         u64 *extra = (u64 *) & priv->extra_stats;
141
142         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
143                 u32 __iomem *rmon = (u32 __iomem *) &regs->rmon;
144                 struct gfar_stats *stats = (struct gfar_stats *) buf;
145
146                 for (i = 0; i < GFAR_RMON_LEN; i++)
147                         stats->rmon[i] = (u64) gfar_read(&rmon[i]);
148
149                 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
150                         stats->extra[i] = extra[i];
151         } else
152                 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
153                         buf[i] = extra[i];
154 }
155
156 static int gfar_sset_count(struct net_device *dev, int sset)
157 {
158         struct gfar_private *priv = netdev_priv(dev);
159
160         switch (sset) {
161         case ETH_SS_STATS:
162                 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
163                         return GFAR_STATS_LEN;
164                 else
165                         return GFAR_EXTRA_STATS_LEN;
166         default:
167                 return -EOPNOTSUPP;
168         }
169 }
170
171 /* Fills in the drvinfo structure with some basic info */
172 static void gfar_gdrvinfo(struct net_device *dev, struct
173               ethtool_drvinfo *drvinfo)
174 {
175         strncpy(drvinfo->driver, DRV_NAME, GFAR_INFOSTR_LEN);
176         strncpy(drvinfo->version, gfar_driver_version, GFAR_INFOSTR_LEN);
177         strncpy(drvinfo->fw_version, "N/A", GFAR_INFOSTR_LEN);
178         strncpy(drvinfo->bus_info, "N/A", GFAR_INFOSTR_LEN);
179         drvinfo->regdump_len = 0;
180         drvinfo->eedump_len = 0;
181 }
182
183
184 static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd)
185 {
186         struct gfar_private *priv = netdev_priv(dev);
187         struct phy_device *phydev = priv->phydev;
188
189         if (NULL == phydev)
190                 return -ENODEV;
191
192         return phy_ethtool_sset(phydev, cmd);
193 }
194
195
196 /* Return the current settings in the ethtool_cmd structure */
197 static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
198 {
199         struct gfar_private *priv = netdev_priv(dev);
200         struct phy_device *phydev = priv->phydev;
201         struct gfar_priv_rx_q *rx_queue = NULL;
202         struct gfar_priv_tx_q *tx_queue = NULL;
203
204         if (NULL == phydev)
205                 return -ENODEV;
206         tx_queue = priv->tx_queue[0];
207         rx_queue = priv->rx_queue[0];
208
209         /* etsec-1.7 and older versions have only one txic
210          * and rxic regs although they support multiple queues */
211         cmd->maxtxpkt = get_icft_value(tx_queue->txic);
212         cmd->maxrxpkt = get_icft_value(rx_queue->rxic);
213
214         return phy_ethtool_gset(phydev, cmd);
215 }
216
217 /* Return the length of the register structure */
218 static int gfar_reglen(struct net_device *dev)
219 {
220         return sizeof (struct gfar);
221 }
222
223 /* Return a dump of the GFAR register space */
224 static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
225 {
226         int i;
227         struct gfar_private *priv = netdev_priv(dev);
228         u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs;
229         u32 *buf = (u32 *) regbuf;
230
231         for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
232                 buf[i] = gfar_read(&theregs[i]);
233 }
234
235 /* Convert microseconds to ethernet clock ticks, which changes
236  * depending on what speed the controller is running at */
237 static unsigned int gfar_usecs2ticks(struct gfar_private *priv, unsigned int usecs)
238 {
239         unsigned int count;
240
241         /* The timer is different, depending on the interface speed */
242         switch (priv->phydev->speed) {
243         case SPEED_1000:
244                 count = GFAR_GBIT_TIME;
245                 break;
246         case SPEED_100:
247                 count = GFAR_100_TIME;
248                 break;
249         case SPEED_10:
250         default:
251                 count = GFAR_10_TIME;
252                 break;
253         }
254
255         /* Make sure we return a number greater than 0
256          * if usecs > 0 */
257         return ((usecs * 1000 + count - 1) / count);
258 }
259
260 /* Convert ethernet clock ticks to microseconds */
261 static unsigned int gfar_ticks2usecs(struct gfar_private *priv, unsigned int ticks)
262 {
263         unsigned int count;
264
265         /* The timer is different, depending on the interface speed */
266         switch (priv->phydev->speed) {
267         case SPEED_1000:
268                 count = GFAR_GBIT_TIME;
269                 break;
270         case SPEED_100:
271                 count = GFAR_100_TIME;
272                 break;
273         case SPEED_10:
274         default:
275                 count = GFAR_10_TIME;
276                 break;
277         }
278
279         /* Make sure we return a number greater than 0 */
280         /* if ticks is > 0 */
281         return ((ticks * count) / 1000);
282 }
283
284 /* Get the coalescing parameters, and put them in the cvals
285  * structure.  */
286 static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
287 {
288         struct gfar_private *priv = netdev_priv(dev);
289         struct gfar_priv_rx_q *rx_queue = NULL;
290         struct gfar_priv_tx_q *tx_queue = NULL;
291         unsigned long rxtime;
292         unsigned long rxcount;
293         unsigned long txtime;
294         unsigned long txcount;
295
296         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
297                 return -EOPNOTSUPP;
298
299         if (NULL == priv->phydev)
300                 return -ENODEV;
301
302         rx_queue = priv->rx_queue[0];
303         tx_queue = priv->tx_queue[0];
304
305         rxtime  = get_ictt_value(rx_queue->rxic);
306         rxcount = get_icft_value(rx_queue->rxic);
307         txtime  = get_ictt_value(tx_queue->txic);
308         txcount = get_icft_value(tx_queue->txic);
309         cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime);
310         cvals->rx_max_coalesced_frames = rxcount;
311
312         cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime);
313         cvals->tx_max_coalesced_frames = txcount;
314
315         cvals->use_adaptive_rx_coalesce = 0;
316         cvals->use_adaptive_tx_coalesce = 0;
317
318         cvals->pkt_rate_low = 0;
319         cvals->rx_coalesce_usecs_low = 0;
320         cvals->rx_max_coalesced_frames_low = 0;
321         cvals->tx_coalesce_usecs_low = 0;
322         cvals->tx_max_coalesced_frames_low = 0;
323
324         /* When the packet rate is below pkt_rate_high but above
325          * pkt_rate_low (both measured in packets per second) the
326          * normal {rx,tx}_* coalescing parameters are used.
327          */
328
329         /* When the packet rate is (measured in packets per second)
330          * is above pkt_rate_high, the {rx,tx}_*_high parameters are
331          * used.
332          */
333         cvals->pkt_rate_high = 0;
334         cvals->rx_coalesce_usecs_high = 0;
335         cvals->rx_max_coalesced_frames_high = 0;
336         cvals->tx_coalesce_usecs_high = 0;
337         cvals->tx_max_coalesced_frames_high = 0;
338
339         /* How often to do adaptive coalescing packet rate sampling,
340          * measured in seconds.  Must not be zero.
341          */
342         cvals->rate_sample_interval = 0;
343
344         return 0;
345 }
346
347 /* Change the coalescing values.
348  * Both cvals->*_usecs and cvals->*_frames have to be > 0
349  * in order for coalescing to be active
350  */
351 static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
352 {
353         struct gfar_private *priv = netdev_priv(dev);
354         int i = 0;
355
356         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
357                 return -EOPNOTSUPP;
358
359         /* Set up rx coalescing */
360         /* As of now, we will enable/disable coalescing for all
361          * queues together in case of eTSEC2, this will be modified
362          * along with the ethtool interface */
363         if ((cvals->rx_coalesce_usecs == 0) ||
364             (cvals->rx_max_coalesced_frames == 0)) {
365                 for (i = 0; i < priv->num_rx_queues; i++)
366                         priv->rx_queue[i]->rxcoalescing = 0;
367         } else {
368                 for (i = 0; i < priv->num_rx_queues; i++)
369                         priv->rx_queue[i]->rxcoalescing = 1;
370         }
371
372         if (NULL == priv->phydev)
373                 return -ENODEV;
374
375         /* Check the bounds of the values */
376         if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
377                 pr_info("Coalescing is limited to %d microseconds\n",
378                                 GFAR_MAX_COAL_USECS);
379                 return -EINVAL;
380         }
381
382         if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
383                 pr_info("Coalescing is limited to %d frames\n",
384                                 GFAR_MAX_COAL_FRAMES);
385                 return -EINVAL;
386         }
387
388         for (i = 0; i < priv->num_rx_queues; i++) {
389                 priv->rx_queue[i]->rxic = mk_ic_value(
390                         cvals->rx_max_coalesced_frames,
391                         gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));
392         }
393
394         /* Set up tx coalescing */
395         if ((cvals->tx_coalesce_usecs == 0) ||
396             (cvals->tx_max_coalesced_frames == 0)) {
397                 for (i = 0; i < priv->num_tx_queues; i++)
398                         priv->tx_queue[i]->txcoalescing = 0;
399         } else {
400                 for (i = 0; i < priv->num_tx_queues; i++)
401                         priv->tx_queue[i]->txcoalescing = 1;
402         }
403
404         /* Check the bounds of the values */
405         if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
406                 pr_info("Coalescing is limited to %d microseconds\n",
407                                 GFAR_MAX_COAL_USECS);
408                 return -EINVAL;
409         }
410
411         if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
412                 pr_info("Coalescing is limited to %d frames\n",
413                                 GFAR_MAX_COAL_FRAMES);
414                 return -EINVAL;
415         }
416
417         for (i = 0; i < priv->num_tx_queues; i++) {
418                 priv->tx_queue[i]->txic = mk_ic_value(
419                         cvals->tx_max_coalesced_frames,
420                         gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
421         }
422
423         gfar_configure_coalescing(priv, 0xFF, 0xFF);
424
425         return 0;
426 }
427
428 /* Fills in rvals with the current ring parameters.  Currently,
429  * rx, rx_mini, and rx_jumbo rings are the same size, as mini and
430  * jumbo are ignored by the driver */
431 static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
432 {
433         struct gfar_private *priv = netdev_priv(dev);
434         struct gfar_priv_tx_q *tx_queue = NULL;
435         struct gfar_priv_rx_q *rx_queue = NULL;
436
437         tx_queue = priv->tx_queue[0];
438         rx_queue = priv->rx_queue[0];
439
440         rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
441         rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
442         rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
443         rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
444
445         /* Values changeable by the user.  The valid values are
446          * in the range 1 to the "*_max_pending" counterpart above.
447          */
448         rvals->rx_pending = rx_queue->rx_ring_size;
449         rvals->rx_mini_pending = rx_queue->rx_ring_size;
450         rvals->rx_jumbo_pending = rx_queue->rx_ring_size;
451         rvals->tx_pending = tx_queue->tx_ring_size;
452 }
453
454 /* Change the current ring parameters, stopping the controller if
455  * necessary so that we don't mess things up while we're in
456  * motion.  We wait for the ring to be clean before reallocating
457  * the rings. */
458 static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
459 {
460         struct gfar_private *priv = netdev_priv(dev);
461         int err = 0, i = 0;
462
463         if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
464                 return -EINVAL;
465
466         if (!is_power_of_2(rvals->rx_pending)) {
467                 printk("%s: Ring sizes must be a power of 2\n",
468                                 dev->name);
469                 return -EINVAL;
470         }
471
472         if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
473                 return -EINVAL;
474
475         if (!is_power_of_2(rvals->tx_pending)) {
476                 printk("%s: Ring sizes must be a power of 2\n",
477                                 dev->name);
478                 return -EINVAL;
479         }
480
481
482         if (dev->flags & IFF_UP) {
483                 unsigned long flags;
484
485                 /* Halt TX and RX, and process the frames which
486                  * have already been received */
487                 local_irq_save(flags);
488                 lock_tx_qs(priv);
489                 lock_rx_qs(priv);
490
491                 gfar_halt(dev);
492
493                 unlock_rx_qs(priv);
494                 unlock_tx_qs(priv);
495                 local_irq_restore(flags);
496
497                 for (i = 0; i < priv->num_rx_queues; i++)
498                         gfar_clean_rx_ring(priv->rx_queue[i],
499                                         priv->rx_queue[i]->rx_ring_size);
500
501                 /* Now we take down the rings to rebuild them */
502                 stop_gfar(dev);
503         }
504
505         /* Change the size */
506         for (i = 0; i < priv->num_rx_queues; i++) {
507                 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;
508                 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;
509                 priv->tx_queue[i]->num_txbdfree = priv->tx_queue[i]->tx_ring_size;
510         }
511
512         /* Rebuild the rings with the new size */
513         if (dev->flags & IFF_UP) {
514                 err = startup_gfar(dev);
515                 netif_tx_wake_all_queues(dev);
516         }
517         return err;
518 }
519
520 static int gfar_set_rx_csum(struct net_device *dev, uint32_t data)
521 {
522         struct gfar_private *priv = netdev_priv(dev);
523         unsigned long flags;
524         int err = 0, i = 0;
525
526         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
527                 return -EOPNOTSUPP;
528
529
530         if (dev->flags & IFF_UP) {
531                 /* Halt TX and RX, and process the frames which
532                  * have already been received */
533                 local_irq_save(flags);
534                 lock_tx_qs(priv);
535                 lock_rx_qs(priv);
536
537                 gfar_halt(dev);
538
539                 unlock_tx_qs(priv);
540                 unlock_rx_qs(priv);
541                 local_irq_save(flags);
542
543                 for (i = 0; i < priv->num_rx_queues; i++)
544                         gfar_clean_rx_ring(priv->rx_queue[i],
545                                         priv->rx_queue[i]->rx_ring_size);
546
547                 /* Now we take down the rings to rebuild them */
548                 stop_gfar(dev);
549         }
550
551         spin_lock_irqsave(&priv->bflock, flags);
552         priv->rx_csum_enable = data;
553         spin_unlock_irqrestore(&priv->bflock, flags);
554
555         if (dev->flags & IFF_UP) {
556                 err = startup_gfar(dev);
557                 netif_tx_wake_all_queues(dev);
558         }
559         return err;
560 }
561
562 static uint32_t gfar_get_rx_csum(struct net_device *dev)
563 {
564         struct gfar_private *priv = netdev_priv(dev);
565
566         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
567                 return 0;
568
569         return priv->rx_csum_enable;
570 }
571
572 static int gfar_set_tx_csum(struct net_device *dev, uint32_t data)
573 {
574         struct gfar_private *priv = netdev_priv(dev);
575
576         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
577                 return -EOPNOTSUPP;
578
579         netif_tx_lock_bh(dev);
580
581         if (data)
582                 dev->features |= NETIF_F_IP_CSUM;
583         else
584                 dev->features &= ~NETIF_F_IP_CSUM;
585
586         netif_tx_unlock_bh(dev);
587
588         return 0;
589 }
590
591 static uint32_t gfar_get_tx_csum(struct net_device *dev)
592 {
593         struct gfar_private *priv = netdev_priv(dev);
594
595         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
596                 return 0;
597
598         return (dev->features & NETIF_F_IP_CSUM) != 0;
599 }
600
601 static uint32_t gfar_get_msglevel(struct net_device *dev)
602 {
603         struct gfar_private *priv = netdev_priv(dev);
604         return priv->msg_enable;
605 }
606
607 static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
608 {
609         struct gfar_private *priv = netdev_priv(dev);
610         priv->msg_enable = data;
611 }
612
613 #ifdef CONFIG_PM
614 static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
615 {
616         struct gfar_private *priv = netdev_priv(dev);
617
618         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) {
619                 wol->supported = WAKE_MAGIC;
620                 wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0;
621         } else {
622                 wol->supported = wol->wolopts = 0;
623         }
624 }
625
626 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
627 {
628         struct gfar_private *priv = netdev_priv(dev);
629         unsigned long flags;
630
631         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
632             wol->wolopts != 0)
633                 return -EINVAL;
634
635         if (wol->wolopts & ~WAKE_MAGIC)
636                 return -EINVAL;
637
638         spin_lock_irqsave(&priv->bflock, flags);
639         priv->wol_en = wol->wolopts & WAKE_MAGIC ? 1 : 0;
640         device_set_wakeup_enable(&dev->dev, priv->wol_en);
641         spin_unlock_irqrestore(&priv->bflock, flags);
642
643         return 0;
644 }
645 #endif
646
647 static int gfar_ethflow_to_class(int flow_type, u64 *class)
648 {
649         switch (flow_type) {
650         case TCP_V4_FLOW:
651                 *class = CLASS_CODE_TCP_IPV4;
652                 break;
653         case UDP_V4_FLOW:
654                 *class = CLASS_CODE_UDP_IPV4;
655                 break;
656         case AH_V4_FLOW:
657         case ESP_V4_FLOW:
658                 *class = CLASS_CODE_AH_ESP_IPV4;
659                 break;
660         case SCTP_V4_FLOW:
661                 *class = CLASS_CODE_SCTP_IPV4;
662                 break;
663         case TCP_V6_FLOW:
664                 *class = CLASS_CODE_TCP_IPV6;
665                 break;
666         case UDP_V6_FLOW:
667                 *class = CLASS_CODE_UDP_IPV6;
668                 break;
669         case AH_V6_FLOW:
670         case ESP_V6_FLOW:
671                 *class = CLASS_CODE_AH_ESP_IPV6;
672                 break;
673         case SCTP_V6_FLOW:
674                 *class = CLASS_CODE_SCTP_IPV6;
675                 break;
676         default:
677                 return 0;
678         }
679
680         return 1;
681 }
682
683 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow)
684 {
685         u32 fcr = 0x0, fpr = FPR_FILER_MASK;
686
687         if (ethflow & RXH_L2DA) {
688                 fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH |
689                         RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
690                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
691                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
692                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
693                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
694
695                 fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH |
696                                 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
697                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
698                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
699                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
700                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
701         }
702
703         if (ethflow & RXH_VLAN) {
704                 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH |
705                                 RQFCR_AND | RQFCR_HASHTBL_0;
706                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
707                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
708                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
709                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
710         }
711
712         if (ethflow & RXH_IP_SRC) {
713                 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
714                         RQFCR_AND | RQFCR_HASHTBL_0;
715                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
716                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
717                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
718                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
719         }
720
721         if (ethflow & (RXH_IP_DST)) {
722                 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
723                         RQFCR_AND | RQFCR_HASHTBL_0;
724                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
725                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
726                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
727                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
728         }
729
730         if (ethflow & RXH_L3_PROTO) {
731                 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH |
732                         RQFCR_AND | RQFCR_HASHTBL_0;
733                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
734                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
735                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
736                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
737         }
738
739         if (ethflow & RXH_L4_B_0_1) {
740                 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
741                         RQFCR_AND | RQFCR_HASHTBL_0;
742                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
743                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
744                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
745                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
746         }
747
748         if (ethflow & RXH_L4_B_2_3) {
749                 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
750                         RQFCR_AND | RQFCR_HASHTBL_0;
751                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
752                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
753                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
754                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
755         }
756 }
757
758 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, u64 class)
759 {
760         unsigned int last_rule_idx = priv->cur_filer_idx;
761         unsigned int cmp_rqfpr;
762         unsigned int local_rqfpr[MAX_FILER_IDX + 1];
763         unsigned int local_rqfcr[MAX_FILER_IDX + 1];
764         int i = 0x0, k = 0x0;
765         int j = MAX_FILER_IDX, l = 0x0;
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         case IPV4_FLOW:
781                 cmp_rqfpr = RQFPR_IPV4;
782         case IPV6_FLOW:
783                 cmp_rqfpr = RQFPR_IPV6;
784                 break;
785         default:
786                 printk(KERN_ERR "Right now this class is not supported\n");
787                 return 0;
788         }
789
790         for (i = 0; i < MAX_FILER_IDX + 1; i++) {
791                 local_rqfpr[j] = ftp_rqfpr[i];
792                 local_rqfcr[j] = ftp_rqfcr[i];
793                 j--;
794                 if ((ftp_rqfcr[i] == (RQFCR_PID_PARSE |
795                         RQFCR_CLE |RQFCR_AND)) &&
796                         (ftp_rqfpr[i] == cmp_rqfpr))
797                         break;
798         }
799
800         if (i == MAX_FILER_IDX + 1) {
801                 printk(KERN_ERR "No parse rule found, ");
802                 printk(KERN_ERR "can't create hash rules\n");
803                 return 0;
804         }
805
806         /* If a match was found, then it begins the starting of a cluster rule
807          * if it was already programmed, we need to overwrite these rules
808          */
809         for (l = i+1; l < MAX_FILER_IDX; l++) {
810                 if ((ftp_rqfcr[l] & RQFCR_CLE) &&
811                         !(ftp_rqfcr[l] & RQFCR_AND)) {
812                         ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |
813                                 RQFCR_HASHTBL_0 | RQFCR_PID_MASK;
814                         ftp_rqfpr[l] = FPR_FILER_MASK;
815                         gfar_write_filer(priv, l, ftp_rqfcr[l], ftp_rqfpr[l]);
816                         break;
817                 }
818
819                 if (!(ftp_rqfcr[l] & RQFCR_CLE) && (ftp_rqfcr[l] & RQFCR_AND))
820                         continue;
821                 else {
822                         local_rqfpr[j] = ftp_rqfpr[l];
823                         local_rqfcr[j] = 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                 ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];
837                 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         return 1;
846 }
847
848 static int gfar_set_hash_opts(struct gfar_private *priv, struct ethtool_rxnfc *cmd)
849 {
850         u64 class;
851
852         if (!gfar_ethflow_to_class(cmd->flow_type, &class))
853                 return -EINVAL;
854
855         if (class < CLASS_CODE_USER_PROG1 ||
856                         class > CLASS_CODE_SCTP_IPV6)
857                 return -EINVAL;
858
859         /* write the filer rules here */
860         if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))
861                 return -1;
862
863         return 0;
864 }
865
866 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
867 {
868         struct gfar_private *priv = netdev_priv(dev);
869         int ret = 0;
870
871         switch(cmd->cmd) {
872         case ETHTOOL_SRXFH:
873                 ret = gfar_set_hash_opts(priv, cmd);
874                 break;
875         default:
876                 ret = -EINVAL;
877         }
878
879         return ret;
880 }
881
882 const struct ethtool_ops gfar_ethtool_ops = {
883         .get_settings = gfar_gsettings,
884         .set_settings = gfar_ssettings,
885         .get_drvinfo = gfar_gdrvinfo,
886         .get_regs_len = gfar_reglen,
887         .get_regs = gfar_get_regs,
888         .get_link = ethtool_op_get_link,
889         .get_coalesce = gfar_gcoalesce,
890         .set_coalesce = gfar_scoalesce,
891         .get_ringparam = gfar_gringparam,
892         .set_ringparam = gfar_sringparam,
893         .get_strings = gfar_gstrings,
894         .get_sset_count = gfar_sset_count,
895         .get_ethtool_stats = gfar_fill_stats,
896         .get_rx_csum = gfar_get_rx_csum,
897         .get_tx_csum = gfar_get_tx_csum,
898         .set_rx_csum = gfar_set_rx_csum,
899         .set_tx_csum = gfar_set_tx_csum,
900         .set_sg = ethtool_op_set_sg,
901         .get_msglevel = gfar_get_msglevel,
902         .set_msglevel = gfar_set_msglevel,
903 #ifdef CONFIG_PM
904         .get_wol = gfar_get_wol,
905         .set_wol = gfar_set_wol,
906 #endif
907         .set_rxnfc = gfar_set_nfc,
908 };