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[net-next-2.6.git] / drivers / net / gianfar_ethtool.c
CommitLineData
1da177e4
LT		 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
4c8d3d99 9 * Maintainer: Kumar Gala
a12f801d 10 * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com>
1da177e4 11 *
a12f801d 12 * Copyright 2003-2006, 2008-2009 Freescale Semiconductor, Inc.
1da177e4 13 *
6aa20a22
JG		 14 * This software may be used and distributed according to
15 * the terms of the GNU Public License, Version 2, incorporated herein
1da177e4
LT		 16 * by reference.
17 */
18
1da177e4 19#include <linux/kernel.h>
1da177e4
LT		 20#include <linux/string.h>
21#include <linux/errno.h>
1da177e4
LT		 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>
1da177e4
LT		 35#include <linux/crc32.h>
36#include <asm/types.h>
1da177e4 37#include <linux/ethtool.h>
bb40dcbb
AF		 38#include <linux/mii.h>
39#include <linux/phy.h>
1da177e4
LT		 40
41#include "gianfar.h"
42
0bbaf069 43extern void gfar_start(struct net_device *dev);
a12f801d 44extern int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit);
1da177e4 45
bb40dcbb
AF		 46#define GFAR_MAX_COAL_USECS 0xffff
47#define GFAR_MAX_COAL_FRAMES 0xff
0bbaf069 48static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
1da177e4 49 u64 * buf);
0bbaf069
KG		 50static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf);
51static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
52static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
53static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
54static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
55static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo);
1da177e4
LT		 56
57static 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
0bbaf069
KG		 118/* Fill in a buffer with the strings which correspond to the
119 * stats */
120static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
121{
122 struct gfar_private *priv = netdev_priv(dev);
7f7f5316 123
b31a1d8b 124 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
0bbaf069
KG		 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
1da177e4
LT		 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 */
0bbaf069 135static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf)
1da177e4
LT		 136{
137 int i;
138 struct gfar_private *priv = netdev_priv(dev);
46ceb60c 139 struct gfar __iomem *regs = priv->gfargrp[0].regs;
1da177e4 140 u64 *extra = (u64 *) & priv->extra_stats;
1da177e4 141
b31a1d8b 142 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
f4983704 143 u32 __iomem *rmon = (u32 __iomem *) &regs->rmon;
0bbaf069 144 struct gfar_stats *stats = (struct gfar_stats *) buf;
1da177e4 145
0bbaf069 146 for (i = 0; i < GFAR_RMON_LEN; i++)
cc8c6e37 147 stats->rmon[i] = (u64) gfar_read(&rmon[i]);
1da177e4 148
0bbaf069
KG		 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];
1da177e4
LT		 154}
155
b9f2c044 156static int gfar_sset_count(struct net_device *dev, int sset)
1da177e4 157{
1da177e4 158 struct gfar_private *priv = netdev_priv(dev);
1da177e4 159
b9f2c044
JG		 160 switch (sset) {
161 case ETH_SS_STATS:
b31a1d8b 162 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
b9f2c044
JG		 163 return GFAR_STATS_LEN;
164 else
165 return GFAR_EXTRA_STATS_LEN;
166 default:
167 return -EOPNOTSUPP;
168 }
1da177e4
LT		 169}
170
1da177e4 171/* Fills in the drvinfo structure with some basic info */
0bbaf069 172static void gfar_gdrvinfo(struct net_device *dev, struct
1da177e4
LT		 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);
1da177e4
LT		 179 drvinfo->regdump_len = 0;
180 drvinfo->eedump_len = 0;
181}
182
bb40dcbb
AF		 183
184static 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
1da177e4 196/* Return the current settings in the ethtool_cmd structure */
0bbaf069 197static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
1da177e4
LT		 198{
199 struct gfar_private *priv = netdev_priv(dev);
bb40dcbb 200 struct phy_device *phydev = priv->phydev;
a12f801d
SG		 201 struct gfar_priv_rx_q *rx_queue = NULL;
202 struct gfar_priv_tx_q *tx_queue = NULL;
bb40dcbb
AF		 203
204 if (NULL == phydev)
205 return -ENODEV;
fba4ed03
SG		 206 tx_queue = priv->tx_queue[0];
207 rx_queue = priv->rx_queue[0];
6aa20a22 208
fba4ed03
SG		 209 /* etsec-1.7 and older versions have only one txic
210 * and rxic regs although they support multiple queues */
a12f801d
SG		 211 cmd->maxtxpkt = get_icft_value(tx_queue->txic);
212 cmd->maxrxpkt = get_icft_value(rx_queue->rxic);
1da177e4 213
bb40dcbb 214 return phy_ethtool_gset(phydev, cmd);
1da177e4
LT		 215}
216
217/* Return the length of the register structure */
0bbaf069 218static int gfar_reglen(struct net_device *dev)
1da177e4
LT		 219{
220 return sizeof (struct gfar);
221}
222
223/* Return a dump of the GFAR register space */
0bbaf069 224static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
1da177e4
LT		 225{
226 int i;
227 struct gfar_private *priv = netdev_priv(dev);
46ceb60c 228 u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs;
1da177e4
LT		 229 u32 *buf = (u32 *) regbuf;
230
231 for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
cc8c6e37 232 buf[i] = gfar_read(&theregs[i]);
1da177e4
LT		 233}
234
1da177e4
LT		 235/* Convert microseconds to ethernet clock ticks, which changes
236 * depending on what speed the controller is running at */
237static 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 */
bb40dcbb
AF		 242 switch (priv->phydev->speed) {
243 case SPEED_1000:
1da177e4
LT		 244 count = GFAR_GBIT_TIME;
245 break;
bb40dcbb 246 case SPEED_100:
1da177e4
LT		 247 count = GFAR_100_TIME;
248 break;
bb40dcbb 249 case SPEED_10:
1da177e4
LT		 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 */
807540ba 257 return (usecs * 1000 + count - 1) / count;
1da177e4
LT		 258}
259
260/* Convert ethernet clock ticks to microseconds */
261static 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 */
bb40dcbb
AF		 266 switch (priv->phydev->speed) {
267 case SPEED_1000:
1da177e4
LT		 268 count = GFAR_GBIT_TIME;
269 break;
bb40dcbb 270 case SPEED_100:
1da177e4
LT		 271 count = GFAR_100_TIME;
272 break;
bb40dcbb 273 case SPEED_10:
1da177e4
LT		 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 */
807540ba 281 return (ticks * count) / 1000;
1da177e4
LT		 282}
283
284/* Get the coalescing parameters, and put them in the cvals
285 * structure. */
0bbaf069 286static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
1da177e4
LT		 287{
288 struct gfar_private *priv = netdev_priv(dev);
a12f801d
SG		 289 struct gfar_priv_rx_q *rx_queue = NULL;
290 struct gfar_priv_tx_q *tx_queue = NULL;
b46a8454
DH		 291 unsigned long rxtime;
292 unsigned long rxcount;
293 unsigned long txtime;
294 unsigned long txcount;
6aa20a22 295
b31a1d8b 296 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
0bbaf069 297 return -EOPNOTSUPP;
1da177e4 298
bb40dcbb
AF		 299 if (NULL == priv->phydev)
300 return -ENODEV;
301
fba4ed03
SG		 302 rx_queue = priv->rx_queue[0];
303 tx_queue = priv->tx_queue[0];
a12f801d
SG		 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);
b46a8454
DH		 309 cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime);
310 cvals->rx_max_coalesced_frames = rxcount;
1da177e4 311
b46a8454
DH		 312 cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime);
313 cvals->tx_max_coalesced_frames = txcount;
1da177e4
LT		 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 */
0bbaf069 351static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
1da177e4
LT		 352{
353 struct gfar_private *priv = netdev_priv(dev);
46ceb60c 354 int i = 0;
1da177e4 355
b31a1d8b 356 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
0bbaf069
KG		 357 return -EOPNOTSUPP;
358
1da177e4 359 /* Set up rx coalescing */
46ceb60c
SG		 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 */
1da177e4 363 if ((cvals->rx_coalesce_usecs == 0) ||
46ceb60c
SG		 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 }
1da177e4 371
bb40dcbb
AF		 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
46ceb60c
SG		 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 }
1da177e4
LT		 393
394 /* Set up tx coalescing */
395 if ((cvals->tx_coalesce_usecs == 0) ||
46ceb60c
SG		 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 }
1da177e4 403
bb40dcbb
AF		 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
46ceb60c
SG		 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 }
1da177e4 422
46ceb60c 423 gfar_configure_coalescing(priv, 0xFF, 0xFF);
1da177e4
LT		 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 */
0bbaf069 431static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
1da177e4
LT		 432{
433 struct gfar_private *priv = netdev_priv(dev);
a12f801d
SG		 434 struct gfar_priv_tx_q *tx_queue = NULL;
435 struct gfar_priv_rx_q *rx_queue = NULL;
436
fba4ed03
SG		 437 tx_queue = priv->tx_queue[0];
438 rx_queue = priv->rx_queue[0];
1da177e4
LT		 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 */
a12f801d
SG		 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;
1da177e4
LT		 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. */
0bbaf069 458static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
1da177e4 459{
1da177e4 460 struct gfar_private *priv = netdev_priv(dev);
fba4ed03 461 int err = 0, i = 0;
1da177e4
LT		 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
a12f801d 481
0bbaf069
KG		 482 if (dev->flags & IFF_UP) {
483 unsigned long flags;
1da177e4 484
0bbaf069
KG		 485 /* Halt TX and RX, and process the frames which
486 * have already been received */
fba4ed03
SG		 487 local_irq_save(flags);
488 lock_tx_qs(priv);
489 lock_rx_qs(priv);
fef6108d 490
0bbaf069 491 gfar_halt(dev);
fef6108d 492
fba4ed03
SG		 493 unlock_rx_qs(priv);
494 unlock_tx_qs(priv);
495 local_irq_restore(flags);
1da177e4 496
fba4ed03
SG		 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);
12dea57b 500
0bbaf069
KG		 501 /* Now we take down the rings to rebuild them */
502 stop_gfar(dev);
503 }
1da177e4 504
0bbaf069 505 /* Change the size */
fba4ed03
SG		 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 }
1da177e4 511
0bbaf069 512 /* Rebuild the rings with the new size */
12dea57b 513 if (dev->flags & IFF_UP) {
0bbaf069 514 err = startup_gfar(dev);
fba4ed03 515 netif_tx_wake_all_queues(dev);
12dea57b 516 }
0bbaf069
KG		 517 return err;
518}
1da177e4 519
0bbaf069
KG		 520static int gfar_set_rx_csum(struct net_device *dev, uint32_t data)
521{
522 struct gfar_private *priv = netdev_priv(dev);
d87eb127 523 unsigned long flags;
fba4ed03 524 int err = 0, i = 0;
1da177e4 525
b31a1d8b 526 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
0bbaf069
KG		 527 return -EOPNOTSUPP;
528
a12f801d 529
0bbaf069 530 if (dev->flags & IFF_UP) {
0bbaf069
KG		 531 /* Halt TX and RX, and process the frames which
532 * have already been received */
fba4ed03
SG		 533 local_irq_save(flags);
534 lock_tx_qs(priv);
535 lock_rx_qs(priv);
fef6108d 536
0bbaf069 537 gfar_halt(dev);
fef6108d 538
fba4ed03
SG		 539 unlock_tx_qs(priv);
540 unlock_rx_qs(priv);
9756403b 541 local_irq_restore(flags);
0bbaf069 542
fba4ed03
SG		 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);
12dea57b 546
0bbaf069 547 /* Now we take down the rings to rebuild them */
1da177e4
LT		 548 stop_gfar(dev);
549 }
550
d87eb127 551 spin_lock_irqsave(&priv->bflock, flags);
0bbaf069 552 priv->rx_csum_enable = data;
d87eb127 553 spin_unlock_irqrestore(&priv->bflock, flags);
1da177e4 554
12dea57b 555 if (dev->flags & IFF_UP) {
1da177e4 556 err = startup_gfar(dev);
fba4ed03 557 netif_tx_wake_all_queues(dev);
12dea57b 558 }
1da177e4
LT		 559 return err;
560}
561
0bbaf069
KG		 562static uint32_t gfar_get_rx_csum(struct net_device *dev)
563{
564 struct gfar_private *priv = netdev_priv(dev);
565
b31a1d8b 566 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
0bbaf069
KG		 567 return 0;
568
569 return priv->rx_csum_enable;
570}
571
572static int gfar_set_tx_csum(struct net_device *dev, uint32_t data)
573{
0bbaf069
KG		 574 struct gfar_private *priv = netdev_priv(dev);
575
b31a1d8b 576 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
0bbaf069
KG		 577 return -EOPNOTSUPP;
578
12dea57b 579 netif_tx_lock_bh(dev);
0bbaf069
KG		 580
581 if (data)
582 dev->features |= NETIF_F_IP_CSUM;
583 else
584 dev->features &= ~NETIF_F_IP_CSUM;
585
12dea57b 586 netif_tx_unlock_bh(dev);
0bbaf069
KG		 587
588 return 0;
589}
590
591static uint32_t gfar_get_tx_csum(struct net_device *dev)
592{
593 struct gfar_private *priv = netdev_priv(dev);
594
b31a1d8b 595 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
0bbaf069
KG		 596 return 0;
597
598 return (dev->features & NETIF_F_IP_CSUM) != 0;
599}
600
601static uint32_t gfar_get_msglevel(struct net_device *dev)
6aa20a22 602{
0bbaf069
KG		 603 struct gfar_private *priv = netdev_priv(dev);
604 return priv->msg_enable;
6aa20a22
JG		 605}
606
0bbaf069 607static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
6aa20a22 608{
0bbaf069
KG		 609 struct gfar_private *priv = netdev_priv(dev);
610 priv->msg_enable = data;
611}
612
d87eb127
SW		 613#ifdef CONFIG_PM
614static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
615{
616 struct gfar_private *priv = netdev_priv(dev);
617
b31a1d8b 618 if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) {
d87eb127
SW		 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
626static 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
b31a1d8b 631 if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
d87eb127
SW		 632 wol->wolopts != 0)
633 return -EINVAL;
634
635 if (wol->wolopts & ~WAKE_MAGIC)
636 return -EINVAL;
637
6c4f1994
RW		 638 device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC);
639
d87eb127 640 spin_lock_irqsave(&priv->bflock, flags);
6c4f1994 641 priv->wol_en = !!device_may_wakeup(&dev->dev);
d87eb127
SW		 642 spin_unlock_irqrestore(&priv->bflock, flags);
643
644 return 0;
645}
646#endif
0bbaf069 647
7a8b3372
SG		 648static 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
684static 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
759static 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
849static 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
867static 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
7282d491 883const struct ethtool_ops gfar_ethtool_ops = {
1da177e4 884 .get_settings = gfar_gsettings,
bb40dcbb 885 .set_settings = gfar_ssettings,
1da177e4
LT		 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,
b9f2c044 895 .get_sset_count = gfar_sset_count,
1da177e4 896 .get_ethtool_stats = gfar_fill_stats,
0bbaf069
KG		 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,
4669bc90 901 .set_sg = ethtool_op_set_sg,
0bbaf069
KG		 902 .get_msglevel = gfar_get_msglevel,
903 .set_msglevel = gfar_set_msglevel,
d87eb127
SW		 904#ifdef CONFIG_PM
905 .get_wol = gfar_get_wol,
906 .set_wol = gfar_set_wol,
907#endif
7a8b3372 908 .set_rxnfc = gfar_set_nfc,
1da177e4 909};
Clone of davem's net-next-2.6 tree