Commit | Line | Data |
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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 | ||
1da177e4 LT |
18 | #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> | |
1da177e4 LT |
36 | #include <linux/crc32.h> |
37 | #include <asm/types.h> | |
38 | #include <asm/uaccess.h> | |
39 | #include <linux/ethtool.h> | |
bb40dcbb AF |
40 | #include <linux/mii.h> |
41 | #include <linux/phy.h> | |
1da177e4 LT |
42 | |
43 | #include "gianfar.h" | |
44 | ||
45 | #define is_power_of_2(x) ((x) != 0 && (((x) & ((x) - 1)) == 0)) | |
46 | ||
0bbaf069 KG |
47 | extern void gfar_start(struct net_device *dev); |
48 | extern int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit); | |
1da177e4 | 49 | |
bb40dcbb AF |
50 | #define GFAR_MAX_COAL_USECS 0xffff |
51 | #define GFAR_MAX_COAL_FRAMES 0xff | |
0bbaf069 | 52 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, |
1da177e4 | 53 | u64 * buf); |
0bbaf069 KG |
54 | static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf); |
55 | static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals); | |
56 | static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals); | |
57 | static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals); | |
58 | static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals); | |
59 | static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo); | |
1da177e4 LT |
60 | |
61 | static 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 | ||
0bbaf069 KG |
122 | /* Fill in a buffer with the strings which correspond to the |
123 | * stats */ | |
124 | static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf) | |
125 | { | |
126 | struct gfar_private *priv = netdev_priv(dev); | |
7f7f5316 | 127 | |
0bbaf069 KG |
128 | 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 | ||
1da177e4 LT |
135 | /* 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 | */ | |
0bbaf069 | 139 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf) |
1da177e4 LT |
140 | { |
141 | int i; | |
142 | struct gfar_private *priv = netdev_priv(dev); | |
1da177e4 | 143 | u64 *extra = (u64 *) & priv->extra_stats; |
1da177e4 | 144 | |
0bbaf069 | 145 | if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { |
cc8c6e37 | 146 | u32 __iomem *rmon = (u32 __iomem *) & priv->regs->rmon; |
0bbaf069 | 147 | struct gfar_stats *stats = (struct gfar_stats *) buf; |
1da177e4 | 148 | |
0bbaf069 | 149 | for (i = 0; i < GFAR_RMON_LEN; i++) |
cc8c6e37 | 150 | stats->rmon[i] = (u64) gfar_read(&rmon[i]); |
1da177e4 | 151 | |
0bbaf069 KG |
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]; | |
1da177e4 LT |
157 | } |
158 | ||
0bbaf069 KG |
159 | /* Returns the number of stats (and their corresponding strings) */ |
160 | static int gfar_stats_count(struct net_device *dev) | |
1da177e4 | 161 | { |
1da177e4 | 162 | struct gfar_private *priv = netdev_priv(dev); |
1da177e4 | 163 | |
0bbaf069 KG |
164 | if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) |
165 | return GFAR_STATS_LEN; | |
166 | else | |
167 | return GFAR_EXTRA_STATS_LEN; | |
1da177e4 LT |
168 | } |
169 | ||
1da177e4 | 170 | /* Fills in the drvinfo structure with some basic info */ |
0bbaf069 | 171 | static void gfar_gdrvinfo(struct net_device *dev, struct |
1da177e4 LT |
172 | 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 | ||
bb40dcbb AF |
184 | |
185 | static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd) | |
186 | { | |
187 | struct gfar_private *priv = netdev_priv(dev); | |
188 | struct phy_device *phydev = priv->phydev; | |
189 | ||
190 | if (NULL == phydev) | |
191 | return -ENODEV; | |
192 | ||
193 | return phy_ethtool_sset(phydev, cmd); | |
194 | } | |
195 | ||
196 | ||
1da177e4 | 197 | /* Return the current settings in the ethtool_cmd structure */ |
0bbaf069 | 198 | static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd) |
1da177e4 LT |
199 | { |
200 | struct gfar_private *priv = netdev_priv(dev); | |
bb40dcbb AF |
201 | struct phy_device *phydev = priv->phydev; |
202 | ||
203 | if (NULL == phydev) | |
204 | return -ENODEV; | |
205 | ||
1da177e4 LT |
206 | cmd->maxtxpkt = priv->txcount; |
207 | cmd->maxrxpkt = priv->rxcount; | |
208 | ||
bb40dcbb | 209 | return phy_ethtool_gset(phydev, cmd); |
1da177e4 LT |
210 | } |
211 | ||
212 | /* Return the length of the register structure */ | |
0bbaf069 | 213 | static int gfar_reglen(struct net_device *dev) |
1da177e4 LT |
214 | { |
215 | return sizeof (struct gfar); | |
216 | } | |
217 | ||
218 | /* Return a dump of the GFAR register space */ | |
0bbaf069 | 219 | static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) |
1da177e4 LT |
220 | { |
221 | int i; | |
222 | struct gfar_private *priv = netdev_priv(dev); | |
cc8c6e37 | 223 | u32 __iomem *theregs = (u32 __iomem *) priv->regs; |
1da177e4 LT |
224 | u32 *buf = (u32 *) regbuf; |
225 | ||
226 | for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++) | |
cc8c6e37 | 227 | buf[i] = gfar_read(&theregs[i]); |
1da177e4 LT |
228 | } |
229 | ||
1da177e4 LT |
230 | /* Convert microseconds to ethernet clock ticks, which changes |
231 | * depending on what speed the controller is running at */ | |
232 | static 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 */ | |
bb40dcbb AF |
237 | switch (priv->phydev->speed) { |
238 | case SPEED_1000: | |
1da177e4 LT |
239 | count = GFAR_GBIT_TIME; |
240 | break; | |
bb40dcbb | 241 | case SPEED_100: |
1da177e4 LT |
242 | count = GFAR_100_TIME; |
243 | break; | |
bb40dcbb | 244 | case SPEED_10: |
1da177e4 LT |
245 | 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 */ | |
256 | static 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 */ | |
bb40dcbb AF |
261 | switch (priv->phydev->speed) { |
262 | case SPEED_1000: | |
1da177e4 LT |
263 | count = GFAR_GBIT_TIME; |
264 | break; | |
bb40dcbb | 265 | case SPEED_100: |
1da177e4 LT |
266 | count = GFAR_100_TIME; |
267 | break; | |
bb40dcbb | 268 | case SPEED_10: |
1da177e4 LT |
269 | 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. */ | |
0bbaf069 | 281 | static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
1da177e4 LT |
282 | { |
283 | struct gfar_private *priv = netdev_priv(dev); | |
0bbaf069 KG |
284 | |
285 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) | |
286 | return -EOPNOTSUPP; | |
1da177e4 | 287 | |
bb40dcbb AF |
288 | if (NULL == priv->phydev) |
289 | return -ENODEV; | |
290 | ||
1da177e4 LT |
291 | 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 | */ | |
0bbaf069 | 333 | static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
1da177e4 LT |
334 | { |
335 | struct gfar_private *priv = netdev_priv(dev); | |
336 | ||
0bbaf069 KG |
337 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
338 | return -EOPNOTSUPP; | |
339 | ||
1da177e4 LT |
340 | /* 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 | ||
bb40dcbb AF |
347 | 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 | ||
1da177e4 LT |
363 | 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 | ||
bb40dcbb AF |
373 | /* 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 | ||
1da177e4 LT |
386 | 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 */ | |
0bbaf069 | 407 | static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
1da177e4 LT |
408 | { |
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. */ | |
0bbaf069 | 429 | static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
1da177e4 | 430 | { |
1da177e4 LT |
431 | 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 | ||
0bbaf069 KG |
452 | if (dev->flags & IFF_UP) { |
453 | unsigned long flags; | |
1da177e4 | 454 | |
0bbaf069 KG |
455 | /* Halt TX and RX, and process the frames which |
456 | * have already been received */ | |
fef6108d AF |
457 | spin_lock_irqsave(&priv->txlock, flags); |
458 | spin_lock(&priv->rxlock); | |
459 | ||
0bbaf069 KG |
460 | gfar_halt(dev); |
461 | gfar_clean_rx_ring(dev, priv->rx_ring_size); | |
fef6108d AF |
462 | |
463 | spin_unlock(&priv->rxlock); | |
464 | spin_unlock_irqrestore(&priv->txlock, flags); | |
1da177e4 | 465 | |
0bbaf069 KG |
466 | /* Now we take down the rings to rebuild them */ |
467 | stop_gfar(dev); | |
468 | } | |
1da177e4 | 469 | |
0bbaf069 KG |
470 | /* Change the size */ |
471 | priv->rx_ring_size = rvals->rx_pending; | |
472 | priv->tx_ring_size = rvals->tx_pending; | |
1da177e4 | 473 | |
0bbaf069 KG |
474 | /* Rebuild the rings with the new size */ |
475 | if (dev->flags & IFF_UP) | |
476 | err = startup_gfar(dev); | |
1da177e4 | 477 | |
0bbaf069 KG |
478 | return err; |
479 | } | |
1da177e4 | 480 | |
0bbaf069 KG |
481 | static 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; | |
1da177e4 | 485 | |
0bbaf069 KG |
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 */ | |
fef6108d AF |
494 | spin_lock_irqsave(&priv->txlock, flags); |
495 | spin_lock(&priv->rxlock); | |
496 | ||
0bbaf069 KG |
497 | gfar_halt(dev); |
498 | gfar_clean_rx_ring(dev, priv->rx_ring_size); | |
fef6108d AF |
499 | |
500 | spin_unlock(&priv->rxlock); | |
501 | spin_unlock_irqrestore(&priv->txlock, flags); | |
0bbaf069 KG |
502 | |
503 | /* Now we take down the rings to rebuild them */ | |
1da177e4 LT |
504 | stop_gfar(dev); |
505 | } | |
506 | ||
0bbaf069 | 507 | priv->rx_csum_enable = data; |
1da177e4 LT |
508 | |
509 | if (dev->flags & IFF_UP) | |
510 | err = startup_gfar(dev); | |
511 | ||
512 | return err; | |
513 | } | |
514 | ||
0bbaf069 KG |
515 | static 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 | ||
525 | static 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 | ||
fef6108d | 533 | spin_lock_irqsave(&priv->txlock, flags); |
0bbaf069 KG |
534 | 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); | |
fef6108d | 542 | spin_unlock_irqrestore(&priv->txlock, flags); |
0bbaf069 KG |
543 | |
544 | return 0; | |
545 | } | |
546 | ||
547 | static 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 | ||
557 | static uint32_t gfar_get_msglevel(struct net_device *dev) | |
558 | { | |
559 | struct gfar_private *priv = netdev_priv(dev); | |
560 | return priv->msg_enable; | |
561 | } | |
562 | ||
563 | static void gfar_set_msglevel(struct net_device *dev, uint32_t data) | |
564 | { | |
565 | struct gfar_private *priv = netdev_priv(dev); | |
566 | priv->msg_enable = data; | |
567 | } | |
568 | ||
569 | ||
1da177e4 LT |
570 | struct ethtool_ops gfar_ethtool_ops = { |
571 | .get_settings = gfar_gsettings, | |
bb40dcbb | 572 | .set_settings = gfar_ssettings, |
1da177e4 LT |
573 | .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, | |
0bbaf069 KG |
584 | .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, | |
1da177e4 | 590 | }; |