Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
[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/slab.h>
23 #include <linux/interrupt.h>
24 #include <linux/init.h>
25 #include <linux/delay.h>
26 #include <linux/netdevice.h>
27 #include <linux/etherdevice.h>
28 #include <linux/skbuff.h>
29 #include <linux/spinlock.h>
30 #include <linux/mm.h>
31
32 #include <asm/io.h>
33 #include <asm/irq.h>
34 #include <asm/uaccess.h>
35 #include <linux/module.h>
36 #include <linux/crc32.h>
37 #include <asm/types.h>
38 #include <linux/ethtool.h>
39 #include <linux/mii.h>
40 #include <linux/phy.h>
41
42 #include "gianfar.h"
43
44 extern void gfar_start(struct net_device *dev);
45 extern int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit);
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, struct ethtool_coalesce *cvals);
53 static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
54 static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
55 static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
56 static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo);
57
58 static char stat_gstrings[][ETH_GSTRING_LEN] = {
59         "rx-dropped-by-kernel",
60         "rx-large-frame-errors",
61         "rx-short-frame-errors",
62         "rx-non-octet-errors",
63         "rx-crc-errors",
64         "rx-overrun-errors",
65         "rx-busy-errors",
66         "rx-babbling-errors",
67         "rx-truncated-frames",
68         "ethernet-bus-error",
69         "tx-babbling-errors",
70         "tx-underrun-errors",
71         "rx-skb-missing-errors",
72         "tx-timeout-errors",
73         "tx-rx-64-frames",
74         "tx-rx-65-127-frames",
75         "tx-rx-128-255-frames",
76         "tx-rx-256-511-frames",
77         "tx-rx-512-1023-frames",
78         "tx-rx-1024-1518-frames",
79         "tx-rx-1519-1522-good-vlan",
80         "rx-bytes",
81         "rx-packets",
82         "rx-fcs-errors",
83         "receive-multicast-packet",
84         "receive-broadcast-packet",
85         "rx-control-frame-packets",
86         "rx-pause-frame-packets",
87         "rx-unknown-op-code",
88         "rx-alignment-error",
89         "rx-frame-length-error",
90         "rx-code-error",
91         "rx-carrier-sense-error",
92         "rx-undersize-packets",
93         "rx-oversize-packets",
94         "rx-fragmented-frames",
95         "rx-jabber-frames",
96         "rx-dropped-frames",
97         "tx-byte-counter",
98         "tx-packets",
99         "tx-multicast-packets",
100         "tx-broadcast-packets",
101         "tx-pause-control-frames",
102         "tx-deferral-packets",
103         "tx-excessive-deferral-packets",
104         "tx-single-collision-packets",
105         "tx-multiple-collision-packets",
106         "tx-late-collision-packets",
107         "tx-excessive-collision-packets",
108         "tx-total-collision",
109         "reserved",
110         "tx-dropped-frames",
111         "tx-jabber-frames",
112         "tx-fcs-errors",
113         "tx-control-frames",
114         "tx-oversize-frames",
115         "tx-undersize-frames",
116         "tx-fragmented-frames",
117 };
118
119 /* Fill in a buffer with the strings which correspond to the
120  * stats */
121 static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
122 {
123         struct gfar_private *priv = netdev_priv(dev);
124
125         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
126                 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);
127         else
128                 memcpy(buf, stat_gstrings,
129                                 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);
130 }
131
132 /* Fill in an array of 64-bit statistics from various sources.
133  * This array will be appended to the end of the ethtool_stats
134  * structure, and returned to user space
135  */
136 static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf)
137 {
138         int i;
139         struct gfar_private *priv = netdev_priv(dev);
140         struct gfar __iomem *regs = priv->gfargrp[0].regs;
141         u64 *extra = (u64 *) & priv->extra_stats;
142
143         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
144                 u32 __iomem *rmon = (u32 __iomem *) &regs->rmon;
145                 struct gfar_stats *stats = (struct gfar_stats *) buf;
146
147                 for (i = 0; i < GFAR_RMON_LEN; i++)
148                         stats->rmon[i] = (u64) gfar_read(&rmon[i]);
149
150                 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
151                         stats->extra[i] = extra[i];
152         } else
153                 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
154                         buf[i] = extra[i];
155 }
156
157 static int gfar_sset_count(struct net_device *dev, int sset)
158 {
159         struct gfar_private *priv = netdev_priv(dev);
160
161         switch (sset) {
162         case ETH_SS_STATS:
163                 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
164                         return GFAR_STATS_LEN;
165                 else
166                         return GFAR_EXTRA_STATS_LEN;
167         default:
168                 return -EOPNOTSUPP;
169         }
170 }
171
172 /* Fills in the drvinfo structure with some basic info */
173 static void gfar_gdrvinfo(struct net_device *dev, struct
174               ethtool_drvinfo *drvinfo)
175 {
176         strncpy(drvinfo->driver, DRV_NAME, GFAR_INFOSTR_LEN);
177         strncpy(drvinfo->version, gfar_driver_version, GFAR_INFOSTR_LEN);
178         strncpy(drvinfo->fw_version, "N/A", GFAR_INFOSTR_LEN);
179         strncpy(drvinfo->bus_info, "N/A", GFAR_INFOSTR_LEN);
180         drvinfo->regdump_len = 0;
181         drvinfo->eedump_len = 0;
182 }
183
184
185 static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd)
186 {
187         struct gfar_private *priv = netdev_priv(dev);
188         struct phy_device *phydev = priv->phydev;
189
190         if (NULL == phydev)
191                 return -ENODEV;
192
193         return phy_ethtool_sset(phydev, cmd);
194 }
195
196
197 /* Return the current settings in the ethtool_cmd structure */
198 static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
199 {
200         struct gfar_private *priv = netdev_priv(dev);
201         struct phy_device *phydev = priv->phydev;
202         struct gfar_priv_rx_q *rx_queue = NULL;
203         struct gfar_priv_tx_q *tx_queue = NULL;
204
205         if (NULL == phydev)
206                 return -ENODEV;
207         tx_queue = priv->tx_queue[0];
208         rx_queue = priv->rx_queue[0];
209
210         /* etsec-1.7 and older versions have only one txic
211          * and rxic regs although they support multiple queues */
212         cmd->maxtxpkt = get_icft_value(tx_queue->txic);
213         cmd->maxrxpkt = get_icft_value(rx_queue->rxic);
214
215         return phy_ethtool_gset(phydev, cmd);
216 }
217
218 /* Return the length of the register structure */
219 static int gfar_reglen(struct net_device *dev)
220 {
221         return sizeof (struct gfar);
222 }
223
224 /* Return a dump of the GFAR register space */
225 static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
226 {
227         int i;
228         struct gfar_private *priv = netdev_priv(dev);
229         u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs;
230         u32 *buf = (u32 *) regbuf;
231
232         for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
233                 buf[i] = gfar_read(&theregs[i]);
234 }
235
236 /* Convert microseconds to ethernet clock ticks, which changes
237  * depending on what speed the controller is running at */
238 static unsigned int gfar_usecs2ticks(struct gfar_private *priv, unsigned int usecs)
239 {
240         unsigned int count;
241
242         /* The timer is different, depending on the interface speed */
243         switch (priv->phydev->speed) {
244         case SPEED_1000:
245                 count = GFAR_GBIT_TIME;
246                 break;
247         case SPEED_100:
248                 count = GFAR_100_TIME;
249                 break;
250         case SPEED_10:
251         default:
252                 count = GFAR_10_TIME;
253                 break;
254         }
255
256         /* Make sure we return a number greater than 0
257          * if usecs > 0 */
258         return ((usecs * 1000 + count - 1) / count);
259 }
260
261 /* Convert ethernet clock ticks to microseconds */
262 static unsigned int gfar_ticks2usecs(struct gfar_private *priv, unsigned int ticks)
263 {
264         unsigned int count;
265
266         /* The timer is different, depending on the interface speed */
267         switch (priv->phydev->speed) {
268         case SPEED_1000:
269                 count = GFAR_GBIT_TIME;
270                 break;
271         case SPEED_100:
272                 count = GFAR_100_TIME;
273                 break;
274         case SPEED_10:
275         default:
276                 count = GFAR_10_TIME;
277                 break;
278         }
279
280         /* Make sure we return a number greater than 0 */
281         /* if ticks is > 0 */
282         return ((ticks * count) / 1000);
283 }
284
285 /* Get the coalescing parameters, and put them in the cvals
286  * structure.  */
287 static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
288 {
289         struct gfar_private *priv = netdev_priv(dev);
290         struct gfar_priv_rx_q *rx_queue = NULL;
291         struct gfar_priv_tx_q *tx_queue = NULL;
292         unsigned long rxtime;
293         unsigned long rxcount;
294         unsigned long txtime;
295         unsigned long txcount;
296
297         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
298                 return -EOPNOTSUPP;
299
300         if (NULL == priv->phydev)
301                 return -ENODEV;
302
303         rx_queue = priv->rx_queue[0];
304         tx_queue = priv->tx_queue[0];
305
306         rxtime  = get_ictt_value(rx_queue->rxic);
307         rxcount = get_icft_value(rx_queue->rxic);
308         txtime  = get_ictt_value(tx_queue->txic);
309         txcount = get_icft_value(tx_queue->txic);
310         cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime);
311         cvals->rx_max_coalesced_frames = rxcount;
312
313         cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime);
314         cvals->tx_max_coalesced_frames = txcount;
315
316         cvals->use_adaptive_rx_coalesce = 0;
317         cvals->use_adaptive_tx_coalesce = 0;
318
319         cvals->pkt_rate_low = 0;
320         cvals->rx_coalesce_usecs_low = 0;
321         cvals->rx_max_coalesced_frames_low = 0;
322         cvals->tx_coalesce_usecs_low = 0;
323         cvals->tx_max_coalesced_frames_low = 0;
324
325         /* When the packet rate is below pkt_rate_high but above
326          * pkt_rate_low (both measured in packets per second) the
327          * normal {rx,tx}_* coalescing parameters are used.
328          */
329
330         /* When the packet rate is (measured in packets per second)
331          * is above pkt_rate_high, the {rx,tx}_*_high parameters are
332          * used.
333          */
334         cvals->pkt_rate_high = 0;
335         cvals->rx_coalesce_usecs_high = 0;
336         cvals->rx_max_coalesced_frames_high = 0;
337         cvals->tx_coalesce_usecs_high = 0;
338         cvals->tx_max_coalesced_frames_high = 0;
339
340         /* How often to do adaptive coalescing packet rate sampling,
341          * measured in seconds.  Must not be zero.
342          */
343         cvals->rate_sample_interval = 0;
344
345         return 0;
346 }
347
348 /* Change the coalescing values.
349  * Both cvals->*_usecs and cvals->*_frames have to be > 0
350  * in order for coalescing to be active
351  */
352 static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
353 {
354         struct gfar_private *priv = netdev_priv(dev);
355         int i = 0;
356
357         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
358                 return -EOPNOTSUPP;
359
360         /* Set up rx coalescing */
361         /* As of now, we will enable/disable coalescing for all
362          * queues together in case of eTSEC2, this will be modified
363          * along with the ethtool interface */
364         if ((cvals->rx_coalesce_usecs == 0) ||
365             (cvals->rx_max_coalesced_frames == 0)) {
366                 for (i = 0; i < priv->num_rx_queues; i++)
367                         priv->rx_queue[i]->rxcoalescing = 0;
368         } else {
369                 for (i = 0; i < priv->num_rx_queues; i++)
370                         priv->rx_queue[i]->rxcoalescing = 1;
371         }
372
373         if (NULL == priv->phydev)
374                 return -ENODEV;
375
376         /* Check the bounds of the values */
377         if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
378                 pr_info("Coalescing is limited to %d microseconds\n",
379                                 GFAR_MAX_COAL_USECS);
380                 return -EINVAL;
381         }
382
383         if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
384                 pr_info("Coalescing is limited to %d frames\n",
385                                 GFAR_MAX_COAL_FRAMES);
386                 return -EINVAL;
387         }
388
389         for (i = 0; i < priv->num_rx_queues; i++) {
390                 priv->rx_queue[i]->rxic = mk_ic_value(
391                         cvals->rx_max_coalesced_frames,
392                         gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs));
393         }
394
395         /* Set up tx coalescing */
396         if ((cvals->tx_coalesce_usecs == 0) ||
397             (cvals->tx_max_coalesced_frames == 0)) {
398                 for (i = 0; i < priv->num_tx_queues; i++)
399                         priv->tx_queue[i]->txcoalescing = 0;
400         } else {
401                 for (i = 0; i < priv->num_tx_queues; i++)
402                         priv->tx_queue[i]->txcoalescing = 1;
403         }
404
405         /* Check the bounds of the values */
406         if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
407                 pr_info("Coalescing is limited to %d microseconds\n",
408                                 GFAR_MAX_COAL_USECS);
409                 return -EINVAL;
410         }
411
412         if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
413                 pr_info("Coalescing is limited to %d frames\n",
414                                 GFAR_MAX_COAL_FRAMES);
415                 return -EINVAL;
416         }
417
418         for (i = 0; i < priv->num_tx_queues; i++) {
419                 priv->tx_queue[i]->txic = mk_ic_value(
420                         cvals->tx_max_coalesced_frames,
421                         gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
422         }
423
424         gfar_configure_coalescing(priv, 0xFF, 0xFF);
425
426         return 0;
427 }
428
429 /* Fills in rvals with the current ring parameters.  Currently,
430  * rx, rx_mini, and rx_jumbo rings are the same size, as mini and
431  * jumbo are ignored by the driver */
432 static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
433 {
434         struct gfar_private *priv = netdev_priv(dev);
435         struct gfar_priv_tx_q *tx_queue = NULL;
436         struct gfar_priv_rx_q *rx_queue = NULL;
437
438         tx_queue = priv->tx_queue[0];
439         rx_queue = priv->rx_queue[0];
440
441         rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
442         rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
443         rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
444         rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
445
446         /* Values changeable by the user.  The valid values are
447          * in the range 1 to the "*_max_pending" counterpart above.
448          */
449         rvals->rx_pending = rx_queue->rx_ring_size;
450         rvals->rx_mini_pending = rx_queue->rx_ring_size;
451         rvals->rx_jumbo_pending = rx_queue->rx_ring_size;
452         rvals->tx_pending = tx_queue->tx_ring_size;
453 }
454
455 /* Change the current ring parameters, stopping the controller if
456  * necessary so that we don't mess things up while we're in
457  * motion.  We wait for the ring to be clean before reallocating
458  * the rings. */
459 static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
460 {
461         struct gfar_private *priv = netdev_priv(dev);
462         int err = 0, i = 0;
463
464         if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
465                 return -EINVAL;
466
467         if (!is_power_of_2(rvals->rx_pending)) {
468                 printk("%s: Ring sizes must be a power of 2\n",
469                                 dev->name);
470                 return -EINVAL;
471         }
472
473         if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
474                 return -EINVAL;
475
476         if (!is_power_of_2(rvals->tx_pending)) {
477                 printk("%s: Ring sizes must be a power of 2\n",
478                                 dev->name);
479                 return -EINVAL;
480         }
481
482
483         if (dev->flags & IFF_UP) {
484                 unsigned long flags;
485
486                 /* Halt TX and RX, and process the frames which
487                  * have already been received */
488                 local_irq_save(flags);
489                 lock_tx_qs(priv);
490                 lock_rx_qs(priv);
491
492                 gfar_halt(dev);
493
494                 unlock_rx_qs(priv);
495                 unlock_tx_qs(priv);
496                 local_irq_restore(flags);
497
498                 for (i = 0; i < priv->num_rx_queues; i++)
499                         gfar_clean_rx_ring(priv->rx_queue[i],
500                                         priv->rx_queue[i]->rx_ring_size);
501
502                 /* Now we take down the rings to rebuild them */
503                 stop_gfar(dev);
504         }
505
506         /* Change the size */
507         for (i = 0; i < priv->num_rx_queues; i++) {
508                 priv->rx_queue[i]->rx_ring_size = rvals->rx_pending;
509                 priv->tx_queue[i]->tx_ring_size = rvals->tx_pending;
510                 priv->tx_queue[i]->num_txbdfree = priv->tx_queue[i]->tx_ring_size;
511         }
512
513         /* Rebuild the rings with the new size */
514         if (dev->flags & IFF_UP) {
515                 err = startup_gfar(dev);
516                 netif_tx_wake_all_queues(dev);
517         }
518         return err;
519 }
520
521 static int gfar_set_rx_csum(struct net_device *dev, uint32_t data)
522 {
523         struct gfar_private *priv = netdev_priv(dev);
524         unsigned long flags;
525         int err = 0, i = 0;
526
527         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
528                 return -EOPNOTSUPP;
529
530
531         if (dev->flags & IFF_UP) {
532                 /* Halt TX and RX, and process the frames which
533                  * have already been received */
534                 local_irq_save(flags);
535                 lock_tx_qs(priv);
536                 lock_rx_qs(priv);
537
538                 gfar_halt(dev);
539
540                 unlock_tx_qs(priv);
541                 unlock_rx_qs(priv);
542                 local_irq_save(flags);
543
544                 for (i = 0; i < priv->num_rx_queues; i++)
545                         gfar_clean_rx_ring(priv->rx_queue[i],
546                                         priv->rx_queue[i]->rx_ring_size);
547
548                 /* Now we take down the rings to rebuild them */
549                 stop_gfar(dev);
550         }
551
552         spin_lock_irqsave(&priv->bflock, flags);
553         priv->rx_csum_enable = data;
554         spin_unlock_irqrestore(&priv->bflock, flags);
555
556         if (dev->flags & IFF_UP) {
557                 err = startup_gfar(dev);
558                 netif_tx_wake_all_queues(dev);
559         }
560         return err;
561 }
562
563 static uint32_t gfar_get_rx_csum(struct net_device *dev)
564 {
565         struct gfar_private *priv = netdev_priv(dev);
566
567         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
568                 return 0;
569
570         return priv->rx_csum_enable;
571 }
572
573 static int gfar_set_tx_csum(struct net_device *dev, uint32_t data)
574 {
575         struct gfar_private *priv = netdev_priv(dev);
576
577         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
578                 return -EOPNOTSUPP;
579
580         netif_tx_lock_bh(dev);
581
582         if (data)
583                 dev->features |= NETIF_F_IP_CSUM;
584         else
585                 dev->features &= ~NETIF_F_IP_CSUM;
586
587         netif_tx_unlock_bh(dev);
588
589         return 0;
590 }
591
592 static uint32_t gfar_get_tx_csum(struct net_device *dev)
593 {
594         struct gfar_private *priv = netdev_priv(dev);
595
596         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
597                 return 0;
598
599         return (dev->features & NETIF_F_IP_CSUM) != 0;
600 }
601
602 static uint32_t gfar_get_msglevel(struct net_device *dev)
603 {
604         struct gfar_private *priv = netdev_priv(dev);
605         return priv->msg_enable;
606 }
607
608 static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
609 {
610         struct gfar_private *priv = netdev_priv(dev);
611         priv->msg_enable = data;
612 }
613
614 #ifdef CONFIG_PM
615 static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
616 {
617         struct gfar_private *priv = netdev_priv(dev);
618
619         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) {
620                 wol->supported = WAKE_MAGIC;
621                 wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0;
622         } else {
623                 wol->supported = wol->wolopts = 0;
624         }
625 }
626
627 static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
628 {
629         struct gfar_private *priv = netdev_priv(dev);
630         unsigned long flags;
631
632         if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
633             wol->wolopts != 0)
634                 return -EINVAL;
635
636         if (wol->wolopts & ~WAKE_MAGIC)
637                 return -EINVAL;
638
639         spin_lock_irqsave(&priv->bflock, flags);
640         priv->wol_en = wol->wolopts & WAKE_MAGIC ? 1 : 0;
641         device_set_wakeup_enable(&dev->dev, priv->wol_en);
642         spin_unlock_irqrestore(&priv->bflock, flags);
643
644         return 0;
645 }
646 #endif
647
648 static int gfar_ethflow_to_class(int flow_type, u64 *class)
649 {
650         switch (flow_type) {
651         case TCP_V4_FLOW:
652                 *class = CLASS_CODE_TCP_IPV4;
653                 break;
654         case UDP_V4_FLOW:
655                 *class = CLASS_CODE_UDP_IPV4;
656                 break;
657         case AH_V4_FLOW:
658         case ESP_V4_FLOW:
659                 *class = CLASS_CODE_AH_ESP_IPV4;
660                 break;
661         case SCTP_V4_FLOW:
662                 *class = CLASS_CODE_SCTP_IPV4;
663                 break;
664         case TCP_V6_FLOW:
665                 *class = CLASS_CODE_TCP_IPV6;
666                 break;
667         case UDP_V6_FLOW:
668                 *class = CLASS_CODE_UDP_IPV6;
669                 break;
670         case AH_V6_FLOW:
671         case ESP_V6_FLOW:
672                 *class = CLASS_CODE_AH_ESP_IPV6;
673                 break;
674         case SCTP_V6_FLOW:
675                 *class = CLASS_CODE_SCTP_IPV6;
676                 break;
677         default:
678                 return 0;
679         }
680
681         return 1;
682 }
683
684 static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow)
685 {
686         u32 fcr = 0x0, fpr = FPR_FILER_MASK;
687
688         if (ethflow & RXH_L2DA) {
689                 fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH |
690                         RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
691                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
692                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
693                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
694                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
695
696                 fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH |
697                                 RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0;
698                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
699                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
700                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
701                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
702         }
703
704         if (ethflow & RXH_VLAN) {
705                 fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH |
706                                 RQFCR_AND | RQFCR_HASHTBL_0;
707                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
708                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
709                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
710                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
711         }
712
713         if (ethflow & RXH_IP_SRC) {
714                 fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
715                         RQFCR_AND | RQFCR_HASHTBL_0;
716                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
717                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
718                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
719                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
720         }
721
722         if (ethflow & (RXH_IP_DST)) {
723                 fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH |
724                         RQFCR_AND | RQFCR_HASHTBL_0;
725                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
726                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
727                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
728                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
729         }
730
731         if (ethflow & RXH_L3_PROTO) {
732                 fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH |
733                         RQFCR_AND | RQFCR_HASHTBL_0;
734                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
735                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
736                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
737                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
738         }
739
740         if (ethflow & RXH_L4_B_0_1) {
741                 fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
742                         RQFCR_AND | RQFCR_HASHTBL_0;
743                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
744                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
745                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
746                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
747         }
748
749         if (ethflow & RXH_L4_B_2_3) {
750                 fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH |
751                         RQFCR_AND | RQFCR_HASHTBL_0;
752                 ftp_rqfpr[priv->cur_filer_idx] = fpr;
753                 ftp_rqfcr[priv->cur_filer_idx] = fcr;
754                 gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr);
755                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
756         }
757 }
758
759 static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, u64 class)
760 {
761         unsigned int last_rule_idx = priv->cur_filer_idx;
762         unsigned int cmp_rqfpr;
763         unsigned int local_rqfpr[MAX_FILER_IDX + 1];
764         unsigned int local_rqfcr[MAX_FILER_IDX + 1];
765         int i = 0x0, k = 0x0;
766         int j = MAX_FILER_IDX, l = 0x0;
767
768         switch (class) {
769         case TCP_V4_FLOW:
770                 cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP;
771                 break;
772         case UDP_V4_FLOW:
773                 cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP;
774                 break;
775         case TCP_V6_FLOW:
776                 cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP;
777                 break;
778         case UDP_V6_FLOW:
779                 cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP;
780                 break;
781         case IPV4_FLOW:
782                 cmp_rqfpr = RQFPR_IPV4;
783         case IPV6_FLOW:
784                 cmp_rqfpr = RQFPR_IPV6;
785                 break;
786         default:
787                 printk(KERN_ERR "Right now this class is not supported\n");
788                 return 0;
789         }
790
791         for (i = 0; i < MAX_FILER_IDX + 1; i++) {
792                 local_rqfpr[j] = ftp_rqfpr[i];
793                 local_rqfcr[j] = ftp_rqfcr[i];
794                 j--;
795                 if ((ftp_rqfcr[i] == (RQFCR_PID_PARSE |
796                         RQFCR_CLE |RQFCR_AND)) &&
797                         (ftp_rqfpr[i] == cmp_rqfpr))
798                         break;
799         }
800
801         if (i == MAX_FILER_IDX + 1) {
802                 printk(KERN_ERR "No parse rule found, ");
803                 printk(KERN_ERR "can't create hash rules\n");
804                 return 0;
805         }
806
807         /* If a match was found, then it begins the starting of a cluster rule
808          * if it was already programmed, we need to overwrite these rules
809          */
810         for (l = i+1; l < MAX_FILER_IDX; l++) {
811                 if ((ftp_rqfcr[l] & RQFCR_CLE) &&
812                         !(ftp_rqfcr[l] & RQFCR_AND)) {
813                         ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT |
814                                 RQFCR_HASHTBL_0 | RQFCR_PID_MASK;
815                         ftp_rqfpr[l] = FPR_FILER_MASK;
816                         gfar_write_filer(priv, l, ftp_rqfcr[l], ftp_rqfpr[l]);
817                         break;
818                 }
819
820                 if (!(ftp_rqfcr[l] & RQFCR_CLE) && (ftp_rqfcr[l] & RQFCR_AND))
821                         continue;
822                 else {
823                         local_rqfpr[j] = ftp_rqfpr[l];
824                         local_rqfcr[j] = ftp_rqfcr[l];
825                         j--;
826                 }
827         }
828
829         priv->cur_filer_idx = l - 1;
830         last_rule_idx = l;
831
832         /* hash rules */
833         ethflow_to_filer_rules(priv, ethflow);
834
835         /* Write back the popped out rules again */
836         for (k = j+1; k < MAX_FILER_IDX; k++) {
837                 ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k];
838                 ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k];
839                 gfar_write_filer(priv, priv->cur_filer_idx,
840                                 local_rqfcr[k], local_rqfpr[k]);
841                 if (!priv->cur_filer_idx)
842                         break;
843                 priv->cur_filer_idx = priv->cur_filer_idx - 1;
844         }
845
846         return 1;
847 }
848
849 static int gfar_set_hash_opts(struct gfar_private *priv, struct ethtool_rxnfc *cmd)
850 {
851         u64 class;
852
853         if (!gfar_ethflow_to_class(cmd->flow_type, &class))
854                 return -EINVAL;
855
856         if (class < CLASS_CODE_USER_PROG1 ||
857                         class > CLASS_CODE_SCTP_IPV6)
858                 return -EINVAL;
859
860         /* write the filer rules here */
861         if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type))
862                 return -1;
863
864         return 0;
865 }
866
867 static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
868 {
869         struct gfar_private *priv = netdev_priv(dev);
870         int ret = 0;
871
872         switch(cmd->cmd) {
873         case ETHTOOL_SRXFH:
874                 ret = gfar_set_hash_opts(priv, cmd);
875                 break;
876         default:
877                 ret = -EINVAL;
878         }
879
880         return ret;
881 }
882
883 const struct ethtool_ops gfar_ethtool_ops = {
884         .get_settings = gfar_gsettings,
885         .set_settings = gfar_ssettings,
886         .get_drvinfo = gfar_gdrvinfo,
887         .get_regs_len = gfar_reglen,
888         .get_regs = gfar_get_regs,
889         .get_link = ethtool_op_get_link,
890         .get_coalesce = gfar_gcoalesce,
891         .set_coalesce = gfar_scoalesce,
892         .get_ringparam = gfar_gringparam,
893         .set_ringparam = gfar_sringparam,
894         .get_strings = gfar_gstrings,
895         .get_sset_count = gfar_sset_count,
896         .get_ethtool_stats = gfar_fill_stats,
897         .get_rx_csum = gfar_get_rx_csum,
898         .get_tx_csum = gfar_get_tx_csum,
899         .set_rx_csum = gfar_set_rx_csum,
900         .set_tx_csum = gfar_set_tx_csum,
901         .set_sg = ethtool_op_set_sg,
902         .get_msglevel = gfar_get_msglevel,
903         .set_msglevel = gfar_set_msglevel,
904 #ifdef CONFIG_PM
905         .get_wol = gfar_get_wol,
906         .set_wol = gfar_set_wol,
907 #endif
908         .set_rxnfc = gfar_set_nfc,
909 };