blob: 5de7b2e259dcbddbbd770b340c6337282947a400 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Kumar Gala4c8d3d92005-11-13 16:06:30 -08009 * Maintainer: Kumar Gala
Linus Torvalds1da177e2005-04-16 15:20:36 -070010 *
11 * Copyright (c) 2003,2004 Freescale Semiconductor, Inc.
12 *
13 * This software may be used and distributed according to
14 * the terms of the GNU Public License, Version 2, incorporated herein
15 * by reference.
16 */
17
18#include <linux/config.h>
19#include <linux/kernel.h>
20#include <linux/sched.h>
21#include <linux/string.h>
22#include <linux/errno.h>
23#include <linux/slab.h>
24#include <linux/interrupt.h>
25#include <linux/init.h>
26#include <linux/delay.h>
27#include <linux/netdevice.h>
28#include <linux/etherdevice.h>
29#include <linux/skbuff.h>
30#include <linux/spinlock.h>
31#include <linux/mm.h>
32
33#include <asm/io.h>
34#include <asm/irq.h>
35#include <asm/uaccess.h>
36#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070037#include <linux/crc32.h>
38#include <asm/types.h>
39#include <asm/uaccess.h>
40#include <linux/ethtool.h>
Andy Flemingbb40dcb2005-09-23 22:54:21 -040041#include <linux/mii.h>
42#include <linux/phy.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070043
44#include "gianfar.h"
45
46#define is_power_of_2(x) ((x) != 0 && (((x) & ((x) - 1)) == 0))
47
Kumar Gala0bbaf062005-06-20 10:54:21 -050048extern void gfar_start(struct net_device *dev);
49extern int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit);
Linus Torvalds1da177e2005-04-16 15:20:36 -070050
Andy Flemingbb40dcb2005-09-23 22:54:21 -040051#define GFAR_MAX_COAL_USECS 0xffff
52#define GFAR_MAX_COAL_FRAMES 0xff
Kumar Gala0bbaf062005-06-20 10:54:21 -050053static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
Linus Torvalds1da177e2005-04-16 15:20:36 -070054 u64 * buf);
Kumar Gala0bbaf062005-06-20 10:54:21 -050055static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf);
56static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
57static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
58static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
59static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
60static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
62static char stat_gstrings[][ETH_GSTRING_LEN] = {
63 "rx-dropped-by-kernel",
64 "rx-large-frame-errors",
65 "rx-short-frame-errors",
66 "rx-non-octet-errors",
67 "rx-crc-errors",
68 "rx-overrun-errors",
69 "rx-busy-errors",
70 "rx-babbling-errors",
71 "rx-truncated-frames",
72 "ethernet-bus-error",
73 "tx-babbling-errors",
74 "tx-underrun-errors",
75 "rx-skb-missing-errors",
76 "tx-timeout-errors",
77 "tx-rx-64-frames",
78 "tx-rx-65-127-frames",
79 "tx-rx-128-255-frames",
80 "tx-rx-256-511-frames",
81 "tx-rx-512-1023-frames",
82 "tx-rx-1024-1518-frames",
83 "tx-rx-1519-1522-good-vlan",
84 "rx-bytes",
85 "rx-packets",
86 "rx-fcs-errors",
87 "receive-multicast-packet",
88 "receive-broadcast-packet",
89 "rx-control-frame-packets",
90 "rx-pause-frame-packets",
91 "rx-unknown-op-code",
92 "rx-alignment-error",
93 "rx-frame-length-error",
94 "rx-code-error",
95 "rx-carrier-sense-error",
96 "rx-undersize-packets",
97 "rx-oversize-packets",
98 "rx-fragmented-frames",
99 "rx-jabber-frames",
100 "rx-dropped-frames",
101 "tx-byte-counter",
102 "tx-packets",
103 "tx-multicast-packets",
104 "tx-broadcast-packets",
105 "tx-pause-control-frames",
106 "tx-deferral-packets",
107 "tx-excessive-deferral-packets",
108 "tx-single-collision-packets",
109 "tx-multiple-collision-packets",
110 "tx-late-collision-packets",
111 "tx-excessive-collision-packets",
112 "tx-total-collision",
113 "reserved",
114 "tx-dropped-frames",
115 "tx-jabber-frames",
116 "tx-fcs-errors",
117 "tx-control-frames",
118 "tx-oversize-frames",
119 "tx-undersize-frames",
120 "tx-fragmented-frames",
121};
122
Kumar Gala0bbaf062005-06-20 10:54:21 -0500123/* Fill in a buffer with the strings which correspond to the
124 * stats */
125static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
126{
127 struct gfar_private *priv = netdev_priv(dev);
Andy Fleming7f7f5312005-11-11 12:38:59 -0600128
Kumar Gala0bbaf062005-06-20 10:54:21 -0500129 if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
130 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);
131 else
132 memcpy(buf, stat_gstrings,
133 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);
134}
135
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136/* Fill in an array of 64-bit statistics from various sources.
137 * This array will be appended to the end of the ethtool_stats
138 * structure, and returned to user space
139 */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500140static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141{
142 int i;
143 struct gfar_private *priv = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144 u64 *extra = (u64 *) & priv->extra_stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145
Kumar Gala0bbaf062005-06-20 10:54:21 -0500146 if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
Kumar Galacc8c6e32006-02-01 15:18:03 -0600147 u32 __iomem *rmon = (u32 __iomem *) & priv->regs->rmon;
Kumar Gala0bbaf062005-06-20 10:54:21 -0500148 struct gfar_stats *stats = (struct gfar_stats *) buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149
Kumar Gala0bbaf062005-06-20 10:54:21 -0500150 for (i = 0; i < GFAR_RMON_LEN; i++)
Kumar Galacc8c6e32006-02-01 15:18:03 -0600151 stats->rmon[i] = (u64) gfar_read(&rmon[i]);
Kumar Gala0bbaf062005-06-20 10:54:21 -0500152
153 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
154 stats->extra[i] = extra[i];
155 } else
156 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
157 buf[i] = extra[i];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158}
159
160/* Returns the number of stats (and their corresponding strings) */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500161static int gfar_stats_count(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163 struct gfar_private *priv = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164
Kumar Gala0bbaf062005-06-20 10:54:21 -0500165 if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
166 return GFAR_STATS_LEN;
167 else
168 return GFAR_EXTRA_STATS_LEN;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169}
170
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171/* Fills in the drvinfo structure with some basic info */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500172static void gfar_gdrvinfo(struct net_device *dev, struct
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173 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->n_stats = GFAR_STATS_LEN;
180 drvinfo->testinfo_len = 0;
181 drvinfo->regdump_len = 0;
182 drvinfo->eedump_len = 0;
183}
184
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400185
186static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd)
187{
188 struct gfar_private *priv = netdev_priv(dev);
189 struct phy_device *phydev = priv->phydev;
190
191 if (NULL == phydev)
192 return -ENODEV;
193
194 return phy_ethtool_sset(phydev, cmd);
195}
196
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198/* Return the current settings in the ethtool_cmd structure */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500199static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200{
201 struct gfar_private *priv = netdev_priv(dev);
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400202 struct phy_device *phydev = priv->phydev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400204 if (NULL == phydev)
205 return -ENODEV;
206
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 cmd->maxtxpkt = priv->txcount;
208 cmd->maxrxpkt = priv->rxcount;
209
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400210 return phy_ethtool_gset(phydev, cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211}
212
213/* Return the length of the register structure */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500214static int gfar_reglen(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215{
216 return sizeof (struct gfar);
217}
218
219/* Return a dump of the GFAR register space */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500220static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221{
222 int i;
223 struct gfar_private *priv = netdev_priv(dev);
Kumar Galacc8c6e32006-02-01 15:18:03 -0600224 u32 __iomem *theregs = (u32 __iomem *) priv->regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 u32 *buf = (u32 *) regbuf;
226
227 for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
Kumar Galacc8c6e32006-02-01 15:18:03 -0600228 buf[i] = gfar_read(&theregs[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229}
230
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231/* Convert microseconds to ethernet clock ticks, which changes
232 * depending on what speed the controller is running at */
233static unsigned int gfar_usecs2ticks(struct gfar_private *priv, unsigned int usecs)
234{
235 unsigned int count;
236
237 /* The timer is different, depending on the interface speed */
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400238 switch (priv->phydev->speed) {
239 case SPEED_1000:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 count = GFAR_GBIT_TIME;
241 break;
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400242 case SPEED_100:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243 count = GFAR_100_TIME;
244 break;
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400245 case SPEED_10:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 default:
247 count = GFAR_10_TIME;
248 break;
249 }
250
251 /* Make sure we return a number greater than 0
252 * if usecs > 0 */
253 return ((usecs * 1000 + count - 1) / count);
254}
255
256/* Convert ethernet clock ticks to microseconds */
257static unsigned int gfar_ticks2usecs(struct gfar_private *priv, unsigned int ticks)
258{
259 unsigned int count;
260
261 /* The timer is different, depending on the interface speed */
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400262 switch (priv->phydev->speed) {
263 case SPEED_1000:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 count = GFAR_GBIT_TIME;
265 break;
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400266 case SPEED_100:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 count = GFAR_100_TIME;
268 break;
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400269 case SPEED_10:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 default:
271 count = GFAR_10_TIME;
272 break;
273 }
274
275 /* Make sure we return a number greater than 0 */
276 /* if ticks is > 0 */
277 return ((ticks * count) / 1000);
278}
279
280/* Get the coalescing parameters, and put them in the cvals
281 * structure. */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500282static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283{
284 struct gfar_private *priv = netdev_priv(dev);
Kumar Gala0bbaf062005-06-20 10:54:21 -0500285
286 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
287 return -EOPNOTSUPP;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400289 if (NULL == priv->phydev)
290 return -ENODEV;
291
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292 cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, priv->rxtime);
293 cvals->rx_max_coalesced_frames = priv->rxcount;
294
295 cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, priv->txtime);
296 cvals->tx_max_coalesced_frames = priv->txcount;
297
298 cvals->use_adaptive_rx_coalesce = 0;
299 cvals->use_adaptive_tx_coalesce = 0;
300
301 cvals->pkt_rate_low = 0;
302 cvals->rx_coalesce_usecs_low = 0;
303 cvals->rx_max_coalesced_frames_low = 0;
304 cvals->tx_coalesce_usecs_low = 0;
305 cvals->tx_max_coalesced_frames_low = 0;
306
307 /* When the packet rate is below pkt_rate_high but above
308 * pkt_rate_low (both measured in packets per second) the
309 * normal {rx,tx}_* coalescing parameters are used.
310 */
311
312 /* When the packet rate is (measured in packets per second)
313 * is above pkt_rate_high, the {rx,tx}_*_high parameters are
314 * used.
315 */
316 cvals->pkt_rate_high = 0;
317 cvals->rx_coalesce_usecs_high = 0;
318 cvals->rx_max_coalesced_frames_high = 0;
319 cvals->tx_coalesce_usecs_high = 0;
320 cvals->tx_max_coalesced_frames_high = 0;
321
322 /* How often to do adaptive coalescing packet rate sampling,
323 * measured in seconds. Must not be zero.
324 */
325 cvals->rate_sample_interval = 0;
326
327 return 0;
328}
329
330/* Change the coalescing values.
331 * Both cvals->*_usecs and cvals->*_frames have to be > 0
332 * in order for coalescing to be active
333 */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500334static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335{
336 struct gfar_private *priv = netdev_priv(dev);
337
Kumar Gala0bbaf062005-06-20 10:54:21 -0500338 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
339 return -EOPNOTSUPP;
340
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 /* Set up rx coalescing */
342 if ((cvals->rx_coalesce_usecs == 0) ||
343 (cvals->rx_max_coalesced_frames == 0))
344 priv->rxcoalescing = 0;
345 else
346 priv->rxcoalescing = 1;
347
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400348 if (NULL == priv->phydev)
349 return -ENODEV;
350
351 /* Check the bounds of the values */
352 if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
353 pr_info("Coalescing is limited to %d microseconds\n",
354 GFAR_MAX_COAL_USECS);
355 return -EINVAL;
356 }
357
358 if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
359 pr_info("Coalescing is limited to %d frames\n",
360 GFAR_MAX_COAL_FRAMES);
361 return -EINVAL;
362 }
363
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364 priv->rxtime = gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs);
365 priv->rxcount = cvals->rx_max_coalesced_frames;
366
367 /* Set up tx coalescing */
368 if ((cvals->tx_coalesce_usecs == 0) ||
369 (cvals->tx_max_coalesced_frames == 0))
370 priv->txcoalescing = 0;
371 else
372 priv->txcoalescing = 1;
373
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400374 /* Check the bounds of the values */
375 if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
376 pr_info("Coalescing is limited to %d microseconds\n",
377 GFAR_MAX_COAL_USECS);
378 return -EINVAL;
379 }
380
381 if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
382 pr_info("Coalescing is limited to %d frames\n",
383 GFAR_MAX_COAL_FRAMES);
384 return -EINVAL;
385 }
386
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 priv->txtime = gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs);
388 priv->txcount = cvals->tx_max_coalesced_frames;
389
390 if (priv->rxcoalescing)
391 gfar_write(&priv->regs->rxic,
392 mk_ic_value(priv->rxcount, priv->rxtime));
393 else
394 gfar_write(&priv->regs->rxic, 0);
395
396 if (priv->txcoalescing)
397 gfar_write(&priv->regs->txic,
398 mk_ic_value(priv->txcount, priv->txtime));
399 else
400 gfar_write(&priv->regs->txic, 0);
401
402 return 0;
403}
404
405/* Fills in rvals with the current ring parameters. Currently,
406 * rx, rx_mini, and rx_jumbo rings are the same size, as mini and
407 * jumbo are ignored by the driver */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500408static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409{
410 struct gfar_private *priv = netdev_priv(dev);
411
412 rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
413 rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
414 rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
415 rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
416
417 /* Values changeable by the user. The valid values are
418 * in the range 1 to the "*_max_pending" counterpart above.
419 */
420 rvals->rx_pending = priv->rx_ring_size;
421 rvals->rx_mini_pending = priv->rx_ring_size;
422 rvals->rx_jumbo_pending = priv->rx_ring_size;
423 rvals->tx_pending = priv->tx_ring_size;
424}
425
426/* Change the current ring parameters, stopping the controller if
427 * necessary so that we don't mess things up while we're in
428 * motion. We wait for the ring to be clean before reallocating
429 * the rings. */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500430static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432 struct gfar_private *priv = netdev_priv(dev);
433 int err = 0;
434
435 if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
436 return -EINVAL;
437
438 if (!is_power_of_2(rvals->rx_pending)) {
439 printk("%s: Ring sizes must be a power of 2\n",
440 dev->name);
441 return -EINVAL;
442 }
443
444 if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
445 return -EINVAL;
446
447 if (!is_power_of_2(rvals->tx_pending)) {
448 printk("%s: Ring sizes must be a power of 2\n",
449 dev->name);
450 return -EINVAL;
451 }
452
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 if (dev->flags & IFF_UP) {
Kumar Gala0bbaf062005-06-20 10:54:21 -0500454 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455
Kumar Gala0bbaf062005-06-20 10:54:21 -0500456 /* Halt TX and RX, and process the frames which
457 * have already been received */
458 spin_lock_irqsave(&priv->lock, flags);
459 gfar_halt(dev);
460 gfar_clean_rx_ring(dev, priv->rx_ring_size);
461 spin_unlock_irqrestore(&priv->lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462
Kumar Gala0bbaf062005-06-20 10:54:21 -0500463 /* Now we take down the rings to rebuild them */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464 stop_gfar(dev);
465 }
466
Kumar Gala0bbaf062005-06-20 10:54:21 -0500467 /* Change the size */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468 priv->rx_ring_size = rvals->rx_pending;
469 priv->tx_ring_size = rvals->tx_pending;
470
Kumar Gala0bbaf062005-06-20 10:54:21 -0500471 /* Rebuild the rings with the new size */
472 if (dev->flags & IFF_UP)
473 err = startup_gfar(dev);
474
475 return err;
476}
477
478static int gfar_set_rx_csum(struct net_device *dev, uint32_t data)
479{
480 struct gfar_private *priv = netdev_priv(dev);
481 int err = 0;
482
483 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
484 return -EOPNOTSUPP;
485
486 if (dev->flags & IFF_UP) {
487 unsigned long flags;
488
489 /* Halt TX and RX, and process the frames which
490 * have already been received */
491 spin_lock_irqsave(&priv->lock, flags);
492 gfar_halt(dev);
493 gfar_clean_rx_ring(dev, priv->rx_ring_size);
494 spin_unlock_irqrestore(&priv->lock, flags);
495
496 /* Now we take down the rings to rebuild them */
497 stop_gfar(dev);
498 }
499
500 priv->rx_csum_enable = data;
501
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502 if (dev->flags & IFF_UP)
503 err = startup_gfar(dev);
504
505 return err;
506}
507
Kumar Gala0bbaf062005-06-20 10:54:21 -0500508static uint32_t gfar_get_rx_csum(struct net_device *dev)
509{
510 struct gfar_private *priv = netdev_priv(dev);
511
512 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
513 return 0;
514
515 return priv->rx_csum_enable;
516}
517
518static int gfar_set_tx_csum(struct net_device *dev, uint32_t data)
519{
520 unsigned long flags;
521 struct gfar_private *priv = netdev_priv(dev);
522
523 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
524 return -EOPNOTSUPP;
525
526 spin_lock_irqsave(&priv->lock, flags);
527 gfar_halt(dev);
528
529 if (data)
530 dev->features |= NETIF_F_IP_CSUM;
531 else
532 dev->features &= ~NETIF_F_IP_CSUM;
533
534 gfar_start(dev);
535 spin_unlock_irqrestore(&priv->lock, flags);
536
537 return 0;
538}
539
540static uint32_t gfar_get_tx_csum(struct net_device *dev)
541{
542 struct gfar_private *priv = netdev_priv(dev);
543
544 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
545 return 0;
546
547 return (dev->features & NETIF_F_IP_CSUM) != 0;
548}
549
550static uint32_t gfar_get_msglevel(struct net_device *dev)
551{
552 struct gfar_private *priv = netdev_priv(dev);
553 return priv->msg_enable;
554}
555
556static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
557{
558 struct gfar_private *priv = netdev_priv(dev);
559 priv->msg_enable = data;
560}
561
562
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563struct ethtool_ops gfar_ethtool_ops = {
564 .get_settings = gfar_gsettings,
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400565 .set_settings = gfar_ssettings,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566 .get_drvinfo = gfar_gdrvinfo,
567 .get_regs_len = gfar_reglen,
568 .get_regs = gfar_get_regs,
569 .get_link = ethtool_op_get_link,
570 .get_coalesce = gfar_gcoalesce,
571 .set_coalesce = gfar_scoalesce,
572 .get_ringparam = gfar_gringparam,
573 .set_ringparam = gfar_sringparam,
574 .get_strings = gfar_gstrings,
575 .get_stats_count = gfar_stats_count,
576 .get_ethtool_stats = gfar_fill_stats,
Kumar Gala0bbaf062005-06-20 10:54:21 -0500577 .get_rx_csum = gfar_get_rx_csum,
578 .get_tx_csum = gfar_get_tx_csum,
579 .set_rx_csum = gfar_set_rx_csum,
580 .set_tx_csum = gfar_set_tx_csum,
581 .get_msglevel = gfar_get_msglevel,
582 .set_msglevel = gfar_set_msglevel,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583};