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 | * | |
6aa20a22 JG |
13 | * This software may be used and distributed according to |
14 | * the terms of the GNU Public License, Version 2, incorporated herein | |
1da177e4 LT |
15 | * by reference. |
16 | */ | |
17 | ||
1da177e4 | 18 | #include <linux/kernel.h> |
1da177e4 LT |
19 | #include <linux/string.h> |
20 | #include <linux/errno.h> | |
21 | #include <linux/slab.h> | |
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> | |
37 | #include <asm/uaccess.h> | |
38 | #include <linux/ethtool.h> | |
bb40dcbb AF |
39 | #include <linux/mii.h> |
40 | #include <linux/phy.h> | |
1da177e4 LT |
41 | |
42 | #include "gianfar.h" | |
43 | ||
0bbaf069 KG |
44 | extern void gfar_start(struct net_device *dev); |
45 | extern int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit); | |
1da177e4 | 46 | |
bb40dcbb AF |
47 | #define GFAR_MAX_COAL_USECS 0xffff |
48 | #define GFAR_MAX_COAL_FRAMES 0xff | |
0bbaf069 | 49 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, |
1da177e4 | 50 | u64 * buf); |
0bbaf069 KG |
51 | static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf); |
52 | static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals); | |
53 | static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals); | |
54 | static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals); | |
55 | static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals); | |
56 | static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo); | |
1da177e4 LT |
57 | |
58 | static char stat_gstrings[][ETH_GSTRING_LEN] = { | |
59 | "rx-dropped-by-kernel", | |
60 | "rx-large-frame-errors", | |
61 | "rx-short-frame-errors", | |
62 | "rx-non-octet-errors", | |
63 | "rx-crc-errors", | |
64 | "rx-overrun-errors", | |
65 | "rx-busy-errors", | |
66 | "rx-babbling-errors", | |
67 | "rx-truncated-frames", | |
68 | "ethernet-bus-error", | |
69 | "tx-babbling-errors", | |
70 | "tx-underrun-errors", | |
71 | "rx-skb-missing-errors", | |
72 | "tx-timeout-errors", | |
73 | "tx-rx-64-frames", | |
74 | "tx-rx-65-127-frames", | |
75 | "tx-rx-128-255-frames", | |
76 | "tx-rx-256-511-frames", | |
77 | "tx-rx-512-1023-frames", | |
78 | "tx-rx-1024-1518-frames", | |
79 | "tx-rx-1519-1522-good-vlan", | |
80 | "rx-bytes", | |
81 | "rx-packets", | |
82 | "rx-fcs-errors", | |
83 | "receive-multicast-packet", | |
84 | "receive-broadcast-packet", | |
85 | "rx-control-frame-packets", | |
86 | "rx-pause-frame-packets", | |
87 | "rx-unknown-op-code", | |
88 | "rx-alignment-error", | |
89 | "rx-frame-length-error", | |
90 | "rx-code-error", | |
91 | "rx-carrier-sense-error", | |
92 | "rx-undersize-packets", | |
93 | "rx-oversize-packets", | |
94 | "rx-fragmented-frames", | |
95 | "rx-jabber-frames", | |
96 | "rx-dropped-frames", | |
97 | "tx-byte-counter", | |
98 | "tx-packets", | |
99 | "tx-multicast-packets", | |
100 | "tx-broadcast-packets", | |
101 | "tx-pause-control-frames", | |
102 | "tx-deferral-packets", | |
103 | "tx-excessive-deferral-packets", | |
104 | "tx-single-collision-packets", | |
105 | "tx-multiple-collision-packets", | |
106 | "tx-late-collision-packets", | |
107 | "tx-excessive-collision-packets", | |
108 | "tx-total-collision", | |
109 | "reserved", | |
110 | "tx-dropped-frames", | |
111 | "tx-jabber-frames", | |
112 | "tx-fcs-errors", | |
113 | "tx-control-frames", | |
114 | "tx-oversize-frames", | |
115 | "tx-undersize-frames", | |
116 | "tx-fragmented-frames", | |
117 | }; | |
118 | ||
0bbaf069 KG |
119 | /* Fill in a buffer with the strings which correspond to the |
120 | * stats */ | |
121 | static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf) | |
122 | { | |
123 | struct gfar_private *priv = netdev_priv(dev); | |
7f7f5316 | 124 | |
0bbaf069 KG |
125 | if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) |
126 | memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN); | |
127 | else | |
128 | memcpy(buf, stat_gstrings, | |
129 | GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN); | |
130 | } | |
131 | ||
1da177e4 LT |
132 | /* Fill in an array of 64-bit statistics from various sources. |
133 | * This array will be appended to the end of the ethtool_stats | |
134 | * structure, and returned to user space | |
135 | */ | |
0bbaf069 | 136 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf) |
1da177e4 LT |
137 | { |
138 | int i; | |
139 | struct gfar_private *priv = netdev_priv(dev); | |
1da177e4 | 140 | u64 *extra = (u64 *) & priv->extra_stats; |
1da177e4 | 141 | |
0bbaf069 | 142 | if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { |
cc8c6e37 | 143 | u32 __iomem *rmon = (u32 __iomem *) & priv->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 | ||
0bbaf069 KG |
156 | /* Returns the number of stats (and their corresponding strings) */ |
157 | static int gfar_stats_count(struct net_device *dev) | |
1da177e4 | 158 | { |
1da177e4 | 159 | struct gfar_private *priv = netdev_priv(dev); |
1da177e4 | 160 | |
0bbaf069 KG |
161 | if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) |
162 | return GFAR_STATS_LEN; | |
163 | else | |
164 | return GFAR_EXTRA_STATS_LEN; | |
1da177e4 LT |
165 | } |
166 | ||
1da177e4 | 167 | /* Fills in the drvinfo structure with some basic info */ |
0bbaf069 | 168 | static void gfar_gdrvinfo(struct net_device *dev, struct |
1da177e4 LT |
169 | ethtool_drvinfo *drvinfo) |
170 | { | |
171 | strncpy(drvinfo->driver, DRV_NAME, GFAR_INFOSTR_LEN); | |
172 | strncpy(drvinfo->version, gfar_driver_version, GFAR_INFOSTR_LEN); | |
173 | strncpy(drvinfo->fw_version, "N/A", GFAR_INFOSTR_LEN); | |
174 | strncpy(drvinfo->bus_info, "N/A", GFAR_INFOSTR_LEN); | |
175 | drvinfo->n_stats = GFAR_STATS_LEN; | |
176 | drvinfo->testinfo_len = 0; | |
177 | drvinfo->regdump_len = 0; | |
178 | drvinfo->eedump_len = 0; | |
179 | } | |
180 | ||
bb40dcbb AF |
181 | |
182 | static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd) | |
183 | { | |
184 | struct gfar_private *priv = netdev_priv(dev); | |
185 | struct phy_device *phydev = priv->phydev; | |
186 | ||
187 | if (NULL == phydev) | |
188 | return -ENODEV; | |
189 | ||
190 | return phy_ethtool_sset(phydev, cmd); | |
191 | } | |
192 | ||
193 | ||
1da177e4 | 194 | /* Return the current settings in the ethtool_cmd structure */ |
0bbaf069 | 195 | static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd) |
1da177e4 LT |
196 | { |
197 | struct gfar_private *priv = netdev_priv(dev); | |
bb40dcbb AF |
198 | struct phy_device *phydev = priv->phydev; |
199 | ||
200 | if (NULL == phydev) | |
201 | return -ENODEV; | |
6aa20a22 | 202 | |
1da177e4 LT |
203 | cmd->maxtxpkt = priv->txcount; |
204 | cmd->maxrxpkt = priv->rxcount; | |
205 | ||
bb40dcbb | 206 | return phy_ethtool_gset(phydev, cmd); |
1da177e4 LT |
207 | } |
208 | ||
209 | /* Return the length of the register structure */ | |
0bbaf069 | 210 | static int gfar_reglen(struct net_device *dev) |
1da177e4 LT |
211 | { |
212 | return sizeof (struct gfar); | |
213 | } | |
214 | ||
215 | /* Return a dump of the GFAR register space */ | |
0bbaf069 | 216 | static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) |
1da177e4 LT |
217 | { |
218 | int i; | |
219 | struct gfar_private *priv = netdev_priv(dev); | |
cc8c6e37 | 220 | u32 __iomem *theregs = (u32 __iomem *) priv->regs; |
1da177e4 LT |
221 | u32 *buf = (u32 *) regbuf; |
222 | ||
223 | for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++) | |
cc8c6e37 | 224 | buf[i] = gfar_read(&theregs[i]); |
1da177e4 LT |
225 | } |
226 | ||
1da177e4 LT |
227 | /* Convert microseconds to ethernet clock ticks, which changes |
228 | * depending on what speed the controller is running at */ | |
229 | static unsigned int gfar_usecs2ticks(struct gfar_private *priv, unsigned int usecs) | |
230 | { | |
231 | unsigned int count; | |
232 | ||
233 | /* The timer is different, depending on the interface speed */ | |
bb40dcbb AF |
234 | switch (priv->phydev->speed) { |
235 | case SPEED_1000: | |
1da177e4 LT |
236 | count = GFAR_GBIT_TIME; |
237 | break; | |
bb40dcbb | 238 | case SPEED_100: |
1da177e4 LT |
239 | count = GFAR_100_TIME; |
240 | break; | |
bb40dcbb | 241 | case SPEED_10: |
1da177e4 LT |
242 | default: |
243 | count = GFAR_10_TIME; | |
244 | break; | |
245 | } | |
246 | ||
247 | /* Make sure we return a number greater than 0 | |
248 | * if usecs > 0 */ | |
249 | return ((usecs * 1000 + count - 1) / count); | |
250 | } | |
251 | ||
252 | /* Convert ethernet clock ticks to microseconds */ | |
253 | static unsigned int gfar_ticks2usecs(struct gfar_private *priv, unsigned int ticks) | |
254 | { | |
255 | unsigned int count; | |
256 | ||
257 | /* The timer is different, depending on the interface speed */ | |
bb40dcbb AF |
258 | switch (priv->phydev->speed) { |
259 | case SPEED_1000: | |
1da177e4 LT |
260 | count = GFAR_GBIT_TIME; |
261 | break; | |
bb40dcbb | 262 | case SPEED_100: |
1da177e4 LT |
263 | count = GFAR_100_TIME; |
264 | break; | |
bb40dcbb | 265 | case SPEED_10: |
1da177e4 LT |
266 | default: |
267 | count = GFAR_10_TIME; | |
268 | break; | |
269 | } | |
270 | ||
271 | /* Make sure we return a number greater than 0 */ | |
272 | /* if ticks is > 0 */ | |
273 | return ((ticks * count) / 1000); | |
274 | } | |
275 | ||
276 | /* Get the coalescing parameters, and put them in the cvals | |
277 | * structure. */ | |
0bbaf069 | 278 | static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
1da177e4 LT |
279 | { |
280 | struct gfar_private *priv = netdev_priv(dev); | |
6aa20a22 | 281 | |
0bbaf069 KG |
282 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
283 | return -EOPNOTSUPP; | |
1da177e4 | 284 | |
bb40dcbb AF |
285 | if (NULL == priv->phydev) |
286 | return -ENODEV; | |
287 | ||
1da177e4 LT |
288 | cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, priv->rxtime); |
289 | cvals->rx_max_coalesced_frames = priv->rxcount; | |
290 | ||
291 | cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, priv->txtime); | |
292 | cvals->tx_max_coalesced_frames = priv->txcount; | |
293 | ||
294 | cvals->use_adaptive_rx_coalesce = 0; | |
295 | cvals->use_adaptive_tx_coalesce = 0; | |
296 | ||
297 | cvals->pkt_rate_low = 0; | |
298 | cvals->rx_coalesce_usecs_low = 0; | |
299 | cvals->rx_max_coalesced_frames_low = 0; | |
300 | cvals->tx_coalesce_usecs_low = 0; | |
301 | cvals->tx_max_coalesced_frames_low = 0; | |
302 | ||
303 | /* When the packet rate is below pkt_rate_high but above | |
304 | * pkt_rate_low (both measured in packets per second) the | |
305 | * normal {rx,tx}_* coalescing parameters are used. | |
306 | */ | |
307 | ||
308 | /* When the packet rate is (measured in packets per second) | |
309 | * is above pkt_rate_high, the {rx,tx}_*_high parameters are | |
310 | * used. | |
311 | */ | |
312 | cvals->pkt_rate_high = 0; | |
313 | cvals->rx_coalesce_usecs_high = 0; | |
314 | cvals->rx_max_coalesced_frames_high = 0; | |
315 | cvals->tx_coalesce_usecs_high = 0; | |
316 | cvals->tx_max_coalesced_frames_high = 0; | |
317 | ||
318 | /* How often to do adaptive coalescing packet rate sampling, | |
319 | * measured in seconds. Must not be zero. | |
320 | */ | |
321 | cvals->rate_sample_interval = 0; | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
326 | /* Change the coalescing values. | |
327 | * Both cvals->*_usecs and cvals->*_frames have to be > 0 | |
328 | * in order for coalescing to be active | |
329 | */ | |
0bbaf069 | 330 | static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
1da177e4 LT |
331 | { |
332 | struct gfar_private *priv = netdev_priv(dev); | |
333 | ||
0bbaf069 KG |
334 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
335 | return -EOPNOTSUPP; | |
336 | ||
1da177e4 LT |
337 | /* Set up rx coalescing */ |
338 | if ((cvals->rx_coalesce_usecs == 0) || | |
339 | (cvals->rx_max_coalesced_frames == 0)) | |
340 | priv->rxcoalescing = 0; | |
341 | else | |
342 | priv->rxcoalescing = 1; | |
343 | ||
bb40dcbb AF |
344 | if (NULL == priv->phydev) |
345 | return -ENODEV; | |
346 | ||
347 | /* Check the bounds of the values */ | |
348 | if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) { | |
349 | pr_info("Coalescing is limited to %d microseconds\n", | |
350 | GFAR_MAX_COAL_USECS); | |
351 | return -EINVAL; | |
352 | } | |
353 | ||
354 | if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { | |
355 | pr_info("Coalescing is limited to %d frames\n", | |
356 | GFAR_MAX_COAL_FRAMES); | |
357 | return -EINVAL; | |
358 | } | |
359 | ||
1da177e4 LT |
360 | priv->rxtime = gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs); |
361 | priv->rxcount = cvals->rx_max_coalesced_frames; | |
362 | ||
363 | /* Set up tx coalescing */ | |
364 | if ((cvals->tx_coalesce_usecs == 0) || | |
365 | (cvals->tx_max_coalesced_frames == 0)) | |
366 | priv->txcoalescing = 0; | |
367 | else | |
368 | priv->txcoalescing = 1; | |
369 | ||
bb40dcbb AF |
370 | /* Check the bounds of the values */ |
371 | if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) { | |
372 | pr_info("Coalescing is limited to %d microseconds\n", | |
373 | GFAR_MAX_COAL_USECS); | |
374 | return -EINVAL; | |
375 | } | |
376 | ||
377 | if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { | |
378 | pr_info("Coalescing is limited to %d frames\n", | |
379 | GFAR_MAX_COAL_FRAMES); | |
380 | return -EINVAL; | |
381 | } | |
382 | ||
1da177e4 LT |
383 | priv->txtime = gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs); |
384 | priv->txcount = cvals->tx_max_coalesced_frames; | |
385 | ||
386 | if (priv->rxcoalescing) | |
387 | gfar_write(&priv->regs->rxic, | |
388 | mk_ic_value(priv->rxcount, priv->rxtime)); | |
389 | else | |
390 | gfar_write(&priv->regs->rxic, 0); | |
391 | ||
392 | if (priv->txcoalescing) | |
393 | gfar_write(&priv->regs->txic, | |
394 | mk_ic_value(priv->txcount, priv->txtime)); | |
395 | else | |
396 | gfar_write(&priv->regs->txic, 0); | |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
401 | /* Fills in rvals with the current ring parameters. Currently, | |
402 | * rx, rx_mini, and rx_jumbo rings are the same size, as mini and | |
403 | * jumbo are ignored by the driver */ | |
0bbaf069 | 404 | static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
1da177e4 LT |
405 | { |
406 | struct gfar_private *priv = netdev_priv(dev); | |
407 | ||
408 | rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE; | |
409 | rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE; | |
410 | rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE; | |
411 | rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE; | |
412 | ||
413 | /* Values changeable by the user. The valid values are | |
414 | * in the range 1 to the "*_max_pending" counterpart above. | |
415 | */ | |
416 | rvals->rx_pending = priv->rx_ring_size; | |
417 | rvals->rx_mini_pending = priv->rx_ring_size; | |
418 | rvals->rx_jumbo_pending = priv->rx_ring_size; | |
419 | rvals->tx_pending = priv->tx_ring_size; | |
420 | } | |
421 | ||
422 | /* Change the current ring parameters, stopping the controller if | |
423 | * necessary so that we don't mess things up while we're in | |
424 | * motion. We wait for the ring to be clean before reallocating | |
425 | * the rings. */ | |
0bbaf069 | 426 | static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
1da177e4 | 427 | { |
1da177e4 LT |
428 | struct gfar_private *priv = netdev_priv(dev); |
429 | int err = 0; | |
430 | ||
431 | if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE) | |
432 | return -EINVAL; | |
433 | ||
434 | if (!is_power_of_2(rvals->rx_pending)) { | |
435 | printk("%s: Ring sizes must be a power of 2\n", | |
436 | dev->name); | |
437 | return -EINVAL; | |
438 | } | |
439 | ||
440 | if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE) | |
441 | return -EINVAL; | |
442 | ||
443 | if (!is_power_of_2(rvals->tx_pending)) { | |
444 | printk("%s: Ring sizes must be a power of 2\n", | |
445 | dev->name); | |
446 | return -EINVAL; | |
447 | } | |
448 | ||
0bbaf069 KG |
449 | if (dev->flags & IFF_UP) { |
450 | unsigned long flags; | |
1da177e4 | 451 | |
0bbaf069 KG |
452 | /* Halt TX and RX, and process the frames which |
453 | * have already been received */ | |
fef6108d AF |
454 | spin_lock_irqsave(&priv->txlock, flags); |
455 | spin_lock(&priv->rxlock); | |
456 | ||
0bbaf069 KG |
457 | gfar_halt(dev); |
458 | gfar_clean_rx_ring(dev, priv->rx_ring_size); | |
fef6108d AF |
459 | |
460 | spin_unlock(&priv->rxlock); | |
461 | spin_unlock_irqrestore(&priv->txlock, flags); | |
1da177e4 | 462 | |
0bbaf069 KG |
463 | /* Now we take down the rings to rebuild them */ |
464 | stop_gfar(dev); | |
465 | } | |
1da177e4 | 466 | |
0bbaf069 KG |
467 | /* Change the size */ |
468 | priv->rx_ring_size = rvals->rx_pending; | |
469 | priv->tx_ring_size = rvals->tx_pending; | |
1da177e4 | 470 | |
0bbaf069 KG |
471 | /* Rebuild the rings with the new size */ |
472 | if (dev->flags & IFF_UP) | |
473 | err = startup_gfar(dev); | |
1da177e4 | 474 | |
0bbaf069 KG |
475 | return err; |
476 | } | |
1da177e4 | 477 | |
0bbaf069 KG |
478 | static 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; | |
1da177e4 | 482 | |
0bbaf069 KG |
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 */ | |
fef6108d AF |
491 | spin_lock_irqsave(&priv->txlock, flags); |
492 | spin_lock(&priv->rxlock); | |
493 | ||
0bbaf069 KG |
494 | gfar_halt(dev); |
495 | gfar_clean_rx_ring(dev, priv->rx_ring_size); | |
fef6108d AF |
496 | |
497 | spin_unlock(&priv->rxlock); | |
498 | spin_unlock_irqrestore(&priv->txlock, flags); | |
0bbaf069 KG |
499 | |
500 | /* Now we take down the rings to rebuild them */ | |
1da177e4 LT |
501 | stop_gfar(dev); |
502 | } | |
503 | ||
0bbaf069 | 504 | priv->rx_csum_enable = data; |
1da177e4 LT |
505 | |
506 | if (dev->flags & IFF_UP) | |
507 | err = startup_gfar(dev); | |
508 | ||
509 | return err; | |
510 | } | |
511 | ||
0bbaf069 KG |
512 | static uint32_t gfar_get_rx_csum(struct net_device *dev) |
513 | { | |
514 | struct gfar_private *priv = netdev_priv(dev); | |
515 | ||
516 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) | |
517 | return 0; | |
518 | ||
519 | return priv->rx_csum_enable; | |
520 | } | |
521 | ||
522 | static int gfar_set_tx_csum(struct net_device *dev, uint32_t data) | |
523 | { | |
524 | unsigned long flags; | |
525 | struct gfar_private *priv = netdev_priv(dev); | |
526 | ||
527 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) | |
528 | return -EOPNOTSUPP; | |
529 | ||
fef6108d | 530 | spin_lock_irqsave(&priv->txlock, flags); |
0bbaf069 KG |
531 | gfar_halt(dev); |
532 | ||
533 | if (data) | |
534 | dev->features |= NETIF_F_IP_CSUM; | |
535 | else | |
536 | dev->features &= ~NETIF_F_IP_CSUM; | |
537 | ||
538 | gfar_start(dev); | |
fef6108d | 539 | spin_unlock_irqrestore(&priv->txlock, flags); |
0bbaf069 KG |
540 | |
541 | return 0; | |
542 | } | |
543 | ||
544 | static uint32_t gfar_get_tx_csum(struct net_device *dev) | |
545 | { | |
546 | struct gfar_private *priv = netdev_priv(dev); | |
547 | ||
548 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) | |
549 | return 0; | |
550 | ||
551 | return (dev->features & NETIF_F_IP_CSUM) != 0; | |
552 | } | |
553 | ||
554 | static uint32_t gfar_get_msglevel(struct net_device *dev) | |
6aa20a22 | 555 | { |
0bbaf069 KG |
556 | struct gfar_private *priv = netdev_priv(dev); |
557 | return priv->msg_enable; | |
6aa20a22 JG |
558 | } |
559 | ||
0bbaf069 | 560 | static void gfar_set_msglevel(struct net_device *dev, uint32_t data) |
6aa20a22 | 561 | { |
0bbaf069 KG |
562 | struct gfar_private *priv = netdev_priv(dev); |
563 | priv->msg_enable = data; | |
564 | } | |
565 | ||
566 | ||
7282d491 | 567 | const struct ethtool_ops gfar_ethtool_ops = { |
1da177e4 | 568 | .get_settings = gfar_gsettings, |
bb40dcbb | 569 | .set_settings = gfar_ssettings, |
1da177e4 LT |
570 | .get_drvinfo = gfar_gdrvinfo, |
571 | .get_regs_len = gfar_reglen, | |
572 | .get_regs = gfar_get_regs, | |
573 | .get_link = ethtool_op_get_link, | |
574 | .get_coalesce = gfar_gcoalesce, | |
575 | .set_coalesce = gfar_scoalesce, | |
576 | .get_ringparam = gfar_gringparam, | |
577 | .set_ringparam = gfar_sringparam, | |
578 | .get_strings = gfar_gstrings, | |
579 | .get_stats_count = gfar_stats_count, | |
580 | .get_ethtool_stats = gfar_fill_stats, | |
0bbaf069 KG |
581 | .get_rx_csum = gfar_get_rx_csum, |
582 | .get_tx_csum = gfar_get_tx_csum, | |
583 | .set_rx_csum = gfar_set_rx_csum, | |
584 | .set_tx_csum = gfar_set_tx_csum, | |
585 | .get_msglevel = gfar_get_msglevel, | |
586 | .set_msglevel = gfar_set_msglevel, | |
1da177e4 | 587 | }; |