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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 |
1da177e4 LT |
10 | * |
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> | |
1da177e4 LT |
37 | #include <linux/crc32.h> |
38 | #include <asm/types.h> | |
39 | #include <asm/uaccess.h> | |
40 | #include <linux/ethtool.h> | |
bb40dcbb AF |
41 | #include <linux/mii.h> |
42 | #include <linux/phy.h> | |
1da177e4 LT |
43 | |
44 | #include "gianfar.h" | |
45 | ||
46 | #define is_power_of_2(x) ((x) != 0 && (((x) & ((x) - 1)) == 0)) | |
47 | ||
0bbaf069 KG |
48 | extern void gfar_start(struct net_device *dev); |
49 | extern int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit); | |
1da177e4 | 50 | |
bb40dcbb AF |
51 | #define GFAR_MAX_COAL_USECS 0xffff |
52 | #define GFAR_MAX_COAL_FRAMES 0xff | |
0bbaf069 | 53 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, |
1da177e4 | 54 | u64 * buf); |
0bbaf069 KG |
55 | static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf); |
56 | static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals); | |
57 | static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals); | |
58 | static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals); | |
59 | static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals); | |
60 | static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo); | |
1da177e4 LT |
61 | |
62 | static 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 | ||
0bbaf069 KG |
123 | /* Fill in a buffer with the strings which correspond to the |
124 | * stats */ | |
125 | static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf) | |
126 | { | |
127 | struct gfar_private *priv = netdev_priv(dev); | |
7f7f5316 | 128 | |
0bbaf069 KG |
129 | 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 | ||
1da177e4 LT |
136 | /* 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 | */ | |
0bbaf069 | 140 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf) |
1da177e4 LT |
141 | { |
142 | int i; | |
143 | struct gfar_private *priv = netdev_priv(dev); | |
1da177e4 | 144 | u64 *extra = (u64 *) & priv->extra_stats; |
1da177e4 | 145 | |
0bbaf069 | 146 | if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { |
cc8c6e37 | 147 | u32 __iomem *rmon = (u32 __iomem *) & priv->regs->rmon; |
0bbaf069 | 148 | struct gfar_stats *stats = (struct gfar_stats *) buf; |
1da177e4 | 149 | |
0bbaf069 | 150 | for (i = 0; i < GFAR_RMON_LEN; i++) |
cc8c6e37 | 151 | stats->rmon[i] = (u64) gfar_read(&rmon[i]); |
1da177e4 | 152 | |
0bbaf069 KG |
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]; | |
1da177e4 LT |
158 | } |
159 | ||
0bbaf069 KG |
160 | /* Returns the number of stats (and their corresponding strings) */ |
161 | static int gfar_stats_count(struct net_device *dev) | |
1da177e4 | 162 | { |
1da177e4 | 163 | struct gfar_private *priv = netdev_priv(dev); |
1da177e4 | 164 | |
0bbaf069 KG |
165 | if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) |
166 | return GFAR_STATS_LEN; | |
167 | else | |
168 | return GFAR_EXTRA_STATS_LEN; | |
1da177e4 LT |
169 | } |
170 | ||
1da177e4 | 171 | /* Fills in the drvinfo structure with some basic info */ |
0bbaf069 | 172 | static 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); | |
179 | drvinfo->n_stats = GFAR_STATS_LEN; | |
180 | drvinfo->testinfo_len = 0; | |
181 | drvinfo->regdump_len = 0; | |
182 | drvinfo->eedump_len = 0; | |
183 | } | |
184 | ||
bb40dcbb AF |
185 | |
186 | static 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 | ||
1da177e4 | 198 | /* Return the current settings in the ethtool_cmd structure */ |
0bbaf069 | 199 | static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd) |
1da177e4 LT |
200 | { |
201 | struct gfar_private *priv = netdev_priv(dev); | |
bb40dcbb AF |
202 | struct phy_device *phydev = priv->phydev; |
203 | ||
204 | if (NULL == phydev) | |
205 | return -ENODEV; | |
206 | ||
1da177e4 LT |
207 | cmd->maxtxpkt = priv->txcount; |
208 | cmd->maxrxpkt = priv->rxcount; | |
209 | ||
bb40dcbb | 210 | return phy_ethtool_gset(phydev, cmd); |
1da177e4 LT |
211 | } |
212 | ||
213 | /* Return the length of the register structure */ | |
0bbaf069 | 214 | static int gfar_reglen(struct net_device *dev) |
1da177e4 LT |
215 | { |
216 | return sizeof (struct gfar); | |
217 | } | |
218 | ||
219 | /* Return a dump of the GFAR register space */ | |
0bbaf069 | 220 | static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) |
1da177e4 LT |
221 | { |
222 | int i; | |
223 | struct gfar_private *priv = netdev_priv(dev); | |
cc8c6e37 | 224 | u32 __iomem *theregs = (u32 __iomem *) priv->regs; |
1da177e4 LT |
225 | u32 *buf = (u32 *) regbuf; |
226 | ||
227 | for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++) | |
cc8c6e37 | 228 | buf[i] = gfar_read(&theregs[i]); |
1da177e4 LT |
229 | } |
230 | ||
1da177e4 LT |
231 | /* Convert microseconds to ethernet clock ticks, which changes |
232 | * depending on what speed the controller is running at */ | |
233 | static 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 */ | |
bb40dcbb AF |
238 | switch (priv->phydev->speed) { |
239 | case SPEED_1000: | |
1da177e4 LT |
240 | count = GFAR_GBIT_TIME; |
241 | break; | |
bb40dcbb | 242 | case SPEED_100: |
1da177e4 LT |
243 | count = GFAR_100_TIME; |
244 | break; | |
bb40dcbb | 245 | case SPEED_10: |
1da177e4 LT |
246 | 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 */ | |
257 | static 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 */ | |
bb40dcbb AF |
262 | switch (priv->phydev->speed) { |
263 | case SPEED_1000: | |
1da177e4 LT |
264 | count = GFAR_GBIT_TIME; |
265 | break; | |
bb40dcbb | 266 | case SPEED_100: |
1da177e4 LT |
267 | count = GFAR_100_TIME; |
268 | break; | |
bb40dcbb | 269 | case SPEED_10: |
1da177e4 LT |
270 | 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. */ | |
0bbaf069 | 282 | static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
1da177e4 LT |
283 | { |
284 | struct gfar_private *priv = netdev_priv(dev); | |
0bbaf069 KG |
285 | |
286 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) | |
287 | return -EOPNOTSUPP; | |
1da177e4 | 288 | |
bb40dcbb AF |
289 | if (NULL == priv->phydev) |
290 | return -ENODEV; | |
291 | ||
1da177e4 LT |
292 | 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 | */ | |
0bbaf069 | 334 | static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
1da177e4 LT |
335 | { |
336 | struct gfar_private *priv = netdev_priv(dev); | |
337 | ||
0bbaf069 KG |
338 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
339 | return -EOPNOTSUPP; | |
340 | ||
1da177e4 LT |
341 | /* 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 | ||
bb40dcbb AF |
348 | 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 | ||
1da177e4 LT |
364 | 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 | ||
bb40dcbb AF |
374 | /* 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 | ||
1da177e4 LT |
387 | 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 */ | |
0bbaf069 | 408 | static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
1da177e4 LT |
409 | { |
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. */ | |
0bbaf069 | 430 | static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
1da177e4 | 431 | { |
1da177e4 LT |
432 | 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 | ||
0bbaf069 KG |
453 | if (dev->flags & IFF_UP) { |
454 | unsigned long flags; | |
1da177e4 | 455 | |
0bbaf069 KG |
456 | /* Halt TX and RX, and process the frames which |
457 | * have already been received */ | |
fef6108d AF |
458 | spin_lock_irqsave(&priv->txlock, flags); |
459 | spin_lock(&priv->rxlock); | |
460 | ||
0bbaf069 KG |
461 | gfar_halt(dev); |
462 | gfar_clean_rx_ring(dev, priv->rx_ring_size); | |
fef6108d AF |
463 | |
464 | spin_unlock(&priv->rxlock); | |
465 | spin_unlock_irqrestore(&priv->txlock, flags); | |
1da177e4 | 466 | |
0bbaf069 KG |
467 | /* Now we take down the rings to rebuild them */ |
468 | stop_gfar(dev); | |
469 | } | |
1da177e4 | 470 | |
0bbaf069 KG |
471 | /* Change the size */ |
472 | priv->rx_ring_size = rvals->rx_pending; | |
473 | priv->tx_ring_size = rvals->tx_pending; | |
1da177e4 | 474 | |
0bbaf069 KG |
475 | /* Rebuild the rings with the new size */ |
476 | if (dev->flags & IFF_UP) | |
477 | err = startup_gfar(dev); | |
1da177e4 | 478 | |
0bbaf069 KG |
479 | return err; |
480 | } | |
1da177e4 | 481 | |
0bbaf069 KG |
482 | static int gfar_set_rx_csum(struct net_device *dev, uint32_t data) |
483 | { | |
484 | struct gfar_private *priv = netdev_priv(dev); | |
485 | int err = 0; | |
1da177e4 | 486 | |
0bbaf069 KG |
487 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) |
488 | return -EOPNOTSUPP; | |
489 | ||
490 | if (dev->flags & IFF_UP) { | |
491 | unsigned long flags; | |
492 | ||
493 | /* Halt TX and RX, and process the frames which | |
494 | * have already been received */ | |
fef6108d AF |
495 | spin_lock_irqsave(&priv->txlock, flags); |
496 | spin_lock(&priv->rxlock); | |
497 | ||
0bbaf069 KG |
498 | gfar_halt(dev); |
499 | gfar_clean_rx_ring(dev, priv->rx_ring_size); | |
fef6108d AF |
500 | |
501 | spin_unlock(&priv->rxlock); | |
502 | spin_unlock_irqrestore(&priv->txlock, flags); | |
0bbaf069 KG |
503 | |
504 | /* Now we take down the rings to rebuild them */ | |
1da177e4 LT |
505 | stop_gfar(dev); |
506 | } | |
507 | ||
0bbaf069 | 508 | priv->rx_csum_enable = data; |
1da177e4 LT |
509 | |
510 | if (dev->flags & IFF_UP) | |
511 | err = startup_gfar(dev); | |
512 | ||
513 | return err; | |
514 | } | |
515 | ||
0bbaf069 KG |
516 | static uint32_t gfar_get_rx_csum(struct net_device *dev) |
517 | { | |
518 | struct gfar_private *priv = netdev_priv(dev); | |
519 | ||
520 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) | |
521 | return 0; | |
522 | ||
523 | return priv->rx_csum_enable; | |
524 | } | |
525 | ||
526 | static int gfar_set_tx_csum(struct net_device *dev, uint32_t data) | |
527 | { | |
528 | unsigned long flags; | |
529 | struct gfar_private *priv = netdev_priv(dev); | |
530 | ||
531 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) | |
532 | return -EOPNOTSUPP; | |
533 | ||
fef6108d | 534 | spin_lock_irqsave(&priv->txlock, flags); |
0bbaf069 KG |
535 | gfar_halt(dev); |
536 | ||
537 | if (data) | |
538 | dev->features |= NETIF_F_IP_CSUM; | |
539 | else | |
540 | dev->features &= ~NETIF_F_IP_CSUM; | |
541 | ||
542 | gfar_start(dev); | |
fef6108d | 543 | spin_unlock_irqrestore(&priv->txlock, flags); |
0bbaf069 KG |
544 | |
545 | return 0; | |
546 | } | |
547 | ||
548 | static uint32_t gfar_get_tx_csum(struct net_device *dev) | |
549 | { | |
550 | struct gfar_private *priv = netdev_priv(dev); | |
551 | ||
552 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) | |
553 | return 0; | |
554 | ||
555 | return (dev->features & NETIF_F_IP_CSUM) != 0; | |
556 | } | |
557 | ||
558 | static uint32_t gfar_get_msglevel(struct net_device *dev) | |
559 | { | |
560 | struct gfar_private *priv = netdev_priv(dev); | |
561 | return priv->msg_enable; | |
562 | } | |
563 | ||
564 | static void gfar_set_msglevel(struct net_device *dev, uint32_t data) | |
565 | { | |
566 | struct gfar_private *priv = netdev_priv(dev); | |
567 | priv->msg_enable = data; | |
568 | } | |
569 | ||
570 | ||
1da177e4 LT |
571 | struct ethtool_ops gfar_ethtool_ops = { |
572 | .get_settings = gfar_gsettings, | |
bb40dcbb | 573 | .set_settings = gfar_ssettings, |
1da177e4 LT |
574 | .get_drvinfo = gfar_gdrvinfo, |
575 | .get_regs_len = gfar_reglen, | |
576 | .get_regs = gfar_get_regs, | |
577 | .get_link = ethtool_op_get_link, | |
578 | .get_coalesce = gfar_gcoalesce, | |
579 | .set_coalesce = gfar_scoalesce, | |
580 | .get_ringparam = gfar_gringparam, | |
581 | .set_ringparam = gfar_sringparam, | |
582 | .get_strings = gfar_gstrings, | |
583 | .get_stats_count = gfar_stats_count, | |
584 | .get_ethtool_stats = gfar_fill_stats, | |
0bbaf069 KG |
585 | .get_rx_csum = gfar_get_rx_csum, |
586 | .get_tx_csum = gfar_get_tx_csum, | |
587 | .set_rx_csum = gfar_set_rx_csum, | |
588 | .set_tx_csum = gfar_set_tx_csum, | |
589 | .get_msglevel = gfar_get_msglevel, | |
590 | .set_msglevel = gfar_set_msglevel, | |
1da177e4 | 591 | }; |