blob: de8da82cb7ee700a252eda2de007184cd1f5d15d [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 *
Jeff Garzik6aa20a22006-09-13 13:24:59 -040013 * This software may be used and distributed according to
14 * the terms of the GNU Public License, Version 2, incorporated herein
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 * by reference.
16 */
17
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <linux/kernel.h>
19#include <linux/sched.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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070036#include <linux/crc32.h>
37#include <asm/types.h>
38#include <asm/uaccess.h>
39#include <linux/ethtool.h>
Andy Flemingbb40dcb2005-09-23 22:54:21 -040040#include <linux/mii.h>
41#include <linux/phy.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
43#include "gianfar.h"
44
45#define is_power_of_2(x) ((x) != 0 && (((x) & ((x) - 1)) == 0))
46
Kumar Gala0bbaf062005-06-20 10:54:21 -050047extern void gfar_start(struct net_device *dev);
48extern int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit);
Linus Torvalds1da177e2005-04-16 15:20:36 -070049
Andy Flemingbb40dcb2005-09-23 22:54:21 -040050#define GFAR_MAX_COAL_USECS 0xffff
51#define GFAR_MAX_COAL_FRAMES 0xff
Kumar Gala0bbaf062005-06-20 10:54:21 -050052static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
Linus Torvalds1da177e2005-04-16 15:20:36 -070053 u64 * buf);
Kumar Gala0bbaf062005-06-20 10:54:21 -050054static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf);
55static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
56static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals);
57static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
58static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals);
59static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -070060
61static char stat_gstrings[][ETH_GSTRING_LEN] = {
62 "rx-dropped-by-kernel",
63 "rx-large-frame-errors",
64 "rx-short-frame-errors",
65 "rx-non-octet-errors",
66 "rx-crc-errors",
67 "rx-overrun-errors",
68 "rx-busy-errors",
69 "rx-babbling-errors",
70 "rx-truncated-frames",
71 "ethernet-bus-error",
72 "tx-babbling-errors",
73 "tx-underrun-errors",
74 "rx-skb-missing-errors",
75 "tx-timeout-errors",
76 "tx-rx-64-frames",
77 "tx-rx-65-127-frames",
78 "tx-rx-128-255-frames",
79 "tx-rx-256-511-frames",
80 "tx-rx-512-1023-frames",
81 "tx-rx-1024-1518-frames",
82 "tx-rx-1519-1522-good-vlan",
83 "rx-bytes",
84 "rx-packets",
85 "rx-fcs-errors",
86 "receive-multicast-packet",
87 "receive-broadcast-packet",
88 "rx-control-frame-packets",
89 "rx-pause-frame-packets",
90 "rx-unknown-op-code",
91 "rx-alignment-error",
92 "rx-frame-length-error",
93 "rx-code-error",
94 "rx-carrier-sense-error",
95 "rx-undersize-packets",
96 "rx-oversize-packets",
97 "rx-fragmented-frames",
98 "rx-jabber-frames",
99 "rx-dropped-frames",
100 "tx-byte-counter",
101 "tx-packets",
102 "tx-multicast-packets",
103 "tx-broadcast-packets",
104 "tx-pause-control-frames",
105 "tx-deferral-packets",
106 "tx-excessive-deferral-packets",
107 "tx-single-collision-packets",
108 "tx-multiple-collision-packets",
109 "tx-late-collision-packets",
110 "tx-excessive-collision-packets",
111 "tx-total-collision",
112 "reserved",
113 "tx-dropped-frames",
114 "tx-jabber-frames",
115 "tx-fcs-errors",
116 "tx-control-frames",
117 "tx-oversize-frames",
118 "tx-undersize-frames",
119 "tx-fragmented-frames",
120};
121
Kumar Gala0bbaf062005-06-20 10:54:21 -0500122/* Fill in a buffer with the strings which correspond to the
123 * stats */
124static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf)
125{
126 struct gfar_private *priv = netdev_priv(dev);
Andy Fleming7f7f5312005-11-11 12:38:59 -0600127
Kumar Gala0bbaf062005-06-20 10:54:21 -0500128 if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
129 memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN);
130 else
131 memcpy(buf, stat_gstrings,
132 GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN);
133}
134
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135/* Fill in an array of 64-bit statistics from various sources.
136 * This array will be appended to the end of the ethtool_stats
137 * structure, and returned to user space
138 */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500139static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140{
141 int i;
142 struct gfar_private *priv = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143 u64 *extra = (u64 *) & priv->extra_stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144
Kumar Gala0bbaf062005-06-20 10:54:21 -0500145 if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
Kumar Galacc8c6e32006-02-01 15:18:03 -0600146 u32 __iomem *rmon = (u32 __iomem *) & priv->regs->rmon;
Kumar Gala0bbaf062005-06-20 10:54:21 -0500147 struct gfar_stats *stats = (struct gfar_stats *) buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
Kumar Gala0bbaf062005-06-20 10:54:21 -0500149 for (i = 0; i < GFAR_RMON_LEN; i++)
Kumar Galacc8c6e32006-02-01 15:18:03 -0600150 stats->rmon[i] = (u64) gfar_read(&rmon[i]);
Kumar Gala0bbaf062005-06-20 10:54:21 -0500151
152 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
153 stats->extra[i] = extra[i];
154 } else
155 for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++)
156 buf[i] = extra[i];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157}
158
159/* Returns the number of stats (and their corresponding strings) */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500160static int gfar_stats_count(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162 struct gfar_private *priv = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163
Kumar Gala0bbaf062005-06-20 10:54:21 -0500164 if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON)
165 return GFAR_STATS_LEN;
166 else
167 return GFAR_EXTRA_STATS_LEN;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168}
169
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170/* Fills in the drvinfo structure with some basic info */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500171static void gfar_gdrvinfo(struct net_device *dev, struct
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172 ethtool_drvinfo *drvinfo)
173{
174 strncpy(drvinfo->driver, DRV_NAME, GFAR_INFOSTR_LEN);
175 strncpy(drvinfo->version, gfar_driver_version, GFAR_INFOSTR_LEN);
176 strncpy(drvinfo->fw_version, "N/A", GFAR_INFOSTR_LEN);
177 strncpy(drvinfo->bus_info, "N/A", GFAR_INFOSTR_LEN);
178 drvinfo->n_stats = GFAR_STATS_LEN;
179 drvinfo->testinfo_len = 0;
180 drvinfo->regdump_len = 0;
181 drvinfo->eedump_len = 0;
182}
183
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400184
185static 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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197/* Return the current settings in the ethtool_cmd structure */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500198static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199{
200 struct gfar_private *priv = netdev_priv(dev);
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400201 struct phy_device *phydev = priv->phydev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400203 if (NULL == phydev)
204 return -ENODEV;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400205
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 cmd->maxtxpkt = priv->txcount;
207 cmd->maxrxpkt = priv->rxcount;
208
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400209 return phy_ethtool_gset(phydev, cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210}
211
212/* Return the length of the register structure */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500213static int gfar_reglen(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214{
215 return sizeof (struct gfar);
216}
217
218/* Return a dump of the GFAR register space */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500219static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220{
221 int i;
222 struct gfar_private *priv = netdev_priv(dev);
Kumar Galacc8c6e32006-02-01 15:18:03 -0600223 u32 __iomem *theregs = (u32 __iomem *) priv->regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 u32 *buf = (u32 *) regbuf;
225
226 for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
Kumar Galacc8c6e32006-02-01 15:18:03 -0600227 buf[i] = gfar_read(&theregs[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228}
229
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230/* Convert microseconds to ethernet clock ticks, which changes
231 * depending on what speed the controller is running at */
232static unsigned int gfar_usecs2ticks(struct gfar_private *priv, unsigned int usecs)
233{
234 unsigned int count;
235
236 /* The timer is different, depending on the interface speed */
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400237 switch (priv->phydev->speed) {
238 case SPEED_1000:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239 count = GFAR_GBIT_TIME;
240 break;
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400241 case SPEED_100:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 count = GFAR_100_TIME;
243 break;
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400244 case SPEED_10:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245 default:
246 count = GFAR_10_TIME;
247 break;
248 }
249
250 /* Make sure we return a number greater than 0
251 * if usecs > 0 */
252 return ((usecs * 1000 + count - 1) / count);
253}
254
255/* Convert ethernet clock ticks to microseconds */
256static unsigned int gfar_ticks2usecs(struct gfar_private *priv, unsigned int ticks)
257{
258 unsigned int count;
259
260 /* The timer is different, depending on the interface speed */
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400261 switch (priv->phydev->speed) {
262 case SPEED_1000:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 count = GFAR_GBIT_TIME;
264 break;
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400265 case SPEED_100:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266 count = GFAR_100_TIME;
267 break;
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400268 case SPEED_10:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 default:
270 count = GFAR_10_TIME;
271 break;
272 }
273
274 /* Make sure we return a number greater than 0 */
275 /* if ticks is > 0 */
276 return ((ticks * count) / 1000);
277}
278
279/* Get the coalescing parameters, and put them in the cvals
280 * structure. */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500281static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282{
283 struct gfar_private *priv = netdev_priv(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400284
Kumar Gala0bbaf062005-06-20 10:54:21 -0500285 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
286 return -EOPNOTSUPP;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400288 if (NULL == priv->phydev)
289 return -ENODEV;
290
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, priv->rxtime);
292 cvals->rx_max_coalesced_frames = priv->rxcount;
293
294 cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, priv->txtime);
295 cvals->tx_max_coalesced_frames = priv->txcount;
296
297 cvals->use_adaptive_rx_coalesce = 0;
298 cvals->use_adaptive_tx_coalesce = 0;
299
300 cvals->pkt_rate_low = 0;
301 cvals->rx_coalesce_usecs_low = 0;
302 cvals->rx_max_coalesced_frames_low = 0;
303 cvals->tx_coalesce_usecs_low = 0;
304 cvals->tx_max_coalesced_frames_low = 0;
305
306 /* When the packet rate is below pkt_rate_high but above
307 * pkt_rate_low (both measured in packets per second) the
308 * normal {rx,tx}_* coalescing parameters are used.
309 */
310
311 /* When the packet rate is (measured in packets per second)
312 * is above pkt_rate_high, the {rx,tx}_*_high parameters are
313 * used.
314 */
315 cvals->pkt_rate_high = 0;
316 cvals->rx_coalesce_usecs_high = 0;
317 cvals->rx_max_coalesced_frames_high = 0;
318 cvals->tx_coalesce_usecs_high = 0;
319 cvals->tx_max_coalesced_frames_high = 0;
320
321 /* How often to do adaptive coalescing packet rate sampling,
322 * measured in seconds. Must not be zero.
323 */
324 cvals->rate_sample_interval = 0;
325
326 return 0;
327}
328
329/* Change the coalescing values.
330 * Both cvals->*_usecs and cvals->*_frames have to be > 0
331 * in order for coalescing to be active
332 */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500333static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334{
335 struct gfar_private *priv = netdev_priv(dev);
336
Kumar Gala0bbaf062005-06-20 10:54:21 -0500337 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE))
338 return -EOPNOTSUPP;
339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 /* Set up rx coalescing */
341 if ((cvals->rx_coalesce_usecs == 0) ||
342 (cvals->rx_max_coalesced_frames == 0))
343 priv->rxcoalescing = 0;
344 else
345 priv->rxcoalescing = 1;
346
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400347 if (NULL == priv->phydev)
348 return -ENODEV;
349
350 /* Check the bounds of the values */
351 if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
352 pr_info("Coalescing is limited to %d microseconds\n",
353 GFAR_MAX_COAL_USECS);
354 return -EINVAL;
355 }
356
357 if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
358 pr_info("Coalescing is limited to %d frames\n",
359 GFAR_MAX_COAL_FRAMES);
360 return -EINVAL;
361 }
362
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 priv->rxtime = gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs);
364 priv->rxcount = cvals->rx_max_coalesced_frames;
365
366 /* Set up tx coalescing */
367 if ((cvals->tx_coalesce_usecs == 0) ||
368 (cvals->tx_max_coalesced_frames == 0))
369 priv->txcoalescing = 0;
370 else
371 priv->txcoalescing = 1;
372
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400373 /* Check the bounds of the values */
374 if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) {
375 pr_info("Coalescing is limited to %d microseconds\n",
376 GFAR_MAX_COAL_USECS);
377 return -EINVAL;
378 }
379
380 if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) {
381 pr_info("Coalescing is limited to %d frames\n",
382 GFAR_MAX_COAL_FRAMES);
383 return -EINVAL;
384 }
385
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386 priv->txtime = gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs);
387 priv->txcount = cvals->tx_max_coalesced_frames;
388
389 if (priv->rxcoalescing)
390 gfar_write(&priv->regs->rxic,
391 mk_ic_value(priv->rxcount, priv->rxtime));
392 else
393 gfar_write(&priv->regs->rxic, 0);
394
395 if (priv->txcoalescing)
396 gfar_write(&priv->regs->txic,
397 mk_ic_value(priv->txcount, priv->txtime));
398 else
399 gfar_write(&priv->regs->txic, 0);
400
401 return 0;
402}
403
404/* Fills in rvals with the current ring parameters. Currently,
405 * rx, rx_mini, and rx_jumbo rings are the same size, as mini and
406 * jumbo are ignored by the driver */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500407static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408{
409 struct gfar_private *priv = netdev_priv(dev);
410
411 rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE;
412 rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE;
413 rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE;
414 rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE;
415
416 /* Values changeable by the user. The valid values are
417 * in the range 1 to the "*_max_pending" counterpart above.
418 */
419 rvals->rx_pending = priv->rx_ring_size;
420 rvals->rx_mini_pending = priv->rx_ring_size;
421 rvals->rx_jumbo_pending = priv->rx_ring_size;
422 rvals->tx_pending = priv->tx_ring_size;
423}
424
425/* Change the current ring parameters, stopping the controller if
426 * necessary so that we don't mess things up while we're in
427 * motion. We wait for the ring to be clean before reallocating
428 * the rings. */
Kumar Gala0bbaf062005-06-20 10:54:21 -0500429static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431 struct gfar_private *priv = netdev_priv(dev);
432 int err = 0;
433
434 if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE)
435 return -EINVAL;
436
437 if (!is_power_of_2(rvals->rx_pending)) {
438 printk("%s: Ring sizes must be a power of 2\n",
439 dev->name);
440 return -EINVAL;
441 }
442
443 if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE)
444 return -EINVAL;
445
446 if (!is_power_of_2(rvals->tx_pending)) {
447 printk("%s: Ring sizes must be a power of 2\n",
448 dev->name);
449 return -EINVAL;
450 }
451
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 if (dev->flags & IFF_UP) {
Kumar Gala0bbaf062005-06-20 10:54:21 -0500453 unsigned long flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454
Kumar Gala0bbaf062005-06-20 10:54:21 -0500455 /* Halt TX and RX, and process the frames which
456 * have already been received */
Andy Flemingfef61082006-04-20 16:44:29 -0500457 spin_lock_irqsave(&priv->txlock, flags);
458 spin_lock(&priv->rxlock);
459
Kumar Gala0bbaf062005-06-20 10:54:21 -0500460 gfar_halt(dev);
461 gfar_clean_rx_ring(dev, priv->rx_ring_size);
Andy Flemingfef61082006-04-20 16:44:29 -0500462
463 spin_unlock(&priv->rxlock);
464 spin_unlock_irqrestore(&priv->txlock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465
Kumar Gala0bbaf062005-06-20 10:54:21 -0500466 /* Now we take down the rings to rebuild them */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467 stop_gfar(dev);
468 }
469
Kumar Gala0bbaf062005-06-20 10:54:21 -0500470 /* Change the size */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 priv->rx_ring_size = rvals->rx_pending;
472 priv->tx_ring_size = rvals->tx_pending;
473
Kumar Gala0bbaf062005-06-20 10:54:21 -0500474 /* Rebuild the rings with the new size */
475 if (dev->flags & IFF_UP)
476 err = startup_gfar(dev);
477
478 return err;
479}
480
481static int gfar_set_rx_csum(struct net_device *dev, uint32_t data)
482{
483 struct gfar_private *priv = netdev_priv(dev);
484 int err = 0;
485
486 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
487 return -EOPNOTSUPP;
488
489 if (dev->flags & IFF_UP) {
490 unsigned long flags;
491
492 /* Halt TX and RX, and process the frames which
493 * have already been received */
Andy Flemingfef61082006-04-20 16:44:29 -0500494 spin_lock_irqsave(&priv->txlock, flags);
495 spin_lock(&priv->rxlock);
496
Kumar Gala0bbaf062005-06-20 10:54:21 -0500497 gfar_halt(dev);
498 gfar_clean_rx_ring(dev, priv->rx_ring_size);
Andy Flemingfef61082006-04-20 16:44:29 -0500499
500 spin_unlock(&priv->rxlock);
501 spin_unlock_irqrestore(&priv->txlock, flags);
Kumar Gala0bbaf062005-06-20 10:54:21 -0500502
503 /* Now we take down the rings to rebuild them */
504 stop_gfar(dev);
505 }
506
507 priv->rx_csum_enable = data;
508
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509 if (dev->flags & IFF_UP)
510 err = startup_gfar(dev);
511
512 return err;
513}
514
Kumar Gala0bbaf062005-06-20 10:54:21 -0500515static uint32_t gfar_get_rx_csum(struct net_device *dev)
516{
517 struct gfar_private *priv = netdev_priv(dev);
518
519 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
520 return 0;
521
522 return priv->rx_csum_enable;
523}
524
525static int gfar_set_tx_csum(struct net_device *dev, uint32_t data)
526{
527 unsigned long flags;
528 struct gfar_private *priv = netdev_priv(dev);
529
530 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
531 return -EOPNOTSUPP;
532
Andy Flemingfef61082006-04-20 16:44:29 -0500533 spin_lock_irqsave(&priv->txlock, flags);
Kumar Gala0bbaf062005-06-20 10:54:21 -0500534 gfar_halt(dev);
535
536 if (data)
537 dev->features |= NETIF_F_IP_CSUM;
538 else
539 dev->features &= ~NETIF_F_IP_CSUM;
540
541 gfar_start(dev);
Andy Flemingfef61082006-04-20 16:44:29 -0500542 spin_unlock_irqrestore(&priv->txlock, flags);
Kumar Gala0bbaf062005-06-20 10:54:21 -0500543
544 return 0;
545}
546
547static uint32_t gfar_get_tx_csum(struct net_device *dev)
548{
549 struct gfar_private *priv = netdev_priv(dev);
550
551 if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
552 return 0;
553
554 return (dev->features & NETIF_F_IP_CSUM) != 0;
555}
556
557static uint32_t gfar_get_msglevel(struct net_device *dev)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400558{
Kumar Gala0bbaf062005-06-20 10:54:21 -0500559 struct gfar_private *priv = netdev_priv(dev);
560 return priv->msg_enable;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400561}
562
Kumar Gala0bbaf062005-06-20 10:54:21 -0500563static void gfar_set_msglevel(struct net_device *dev, uint32_t data)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400564{
Kumar Gala0bbaf062005-06-20 10:54:21 -0500565 struct gfar_private *priv = netdev_priv(dev);
566 priv->msg_enable = data;
567}
568
569
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570struct ethtool_ops gfar_ethtool_ops = {
571 .get_settings = gfar_gsettings,
Andy Flemingbb40dcb2005-09-23 22:54:21 -0400572 .set_settings = gfar_ssettings,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573 .get_drvinfo = gfar_gdrvinfo,
574 .get_regs_len = gfar_reglen,
575 .get_regs = gfar_get_regs,
576 .get_link = ethtool_op_get_link,
577 .get_coalesce = gfar_gcoalesce,
578 .set_coalesce = gfar_scoalesce,
579 .get_ringparam = gfar_gringparam,
580 .set_ringparam = gfar_sringparam,
581 .get_strings = gfar_gstrings,
582 .get_stats_count = gfar_stats_count,
583 .get_ethtool_stats = gfar_fill_stats,
Kumar Gala0bbaf062005-06-20 10:54:21 -0500584 .get_rx_csum = gfar_get_rx_csum,
585 .get_tx_csum = gfar_get_tx_csum,
586 .set_rx_csum = gfar_set_rx_csum,
587 .set_tx_csum = gfar_set_tx_csum,
588 .get_msglevel = gfar_get_msglevel,
589 .set_msglevel = gfar_set_msglevel,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590};