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> | |
1da177e4 | 37 | #include <linux/ethtool.h> |
bb40dcbb AF |
38 | #include <linux/mii.h> |
39 | #include <linux/phy.h> | |
1da177e4 LT |
40 | |
41 | #include "gianfar.h" | |
42 | ||
0bbaf069 KG |
43 | extern void gfar_start(struct net_device *dev); |
44 | extern int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit); | |
1da177e4 | 45 | |
bb40dcbb AF |
46 | #define GFAR_MAX_COAL_USECS 0xffff |
47 | #define GFAR_MAX_COAL_FRAMES 0xff | |
0bbaf069 | 48 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, |
1da177e4 | 49 | u64 * buf); |
0bbaf069 KG |
50 | static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf); |
51 | static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals); | |
52 | static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals); | |
53 | static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals); | |
54 | static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals); | |
55 | static void gfar_gdrvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo); | |
1da177e4 LT |
56 | |
57 | static char stat_gstrings[][ETH_GSTRING_LEN] = { | |
58 | "rx-dropped-by-kernel", | |
59 | "rx-large-frame-errors", | |
60 | "rx-short-frame-errors", | |
61 | "rx-non-octet-errors", | |
62 | "rx-crc-errors", | |
63 | "rx-overrun-errors", | |
64 | "rx-busy-errors", | |
65 | "rx-babbling-errors", | |
66 | "rx-truncated-frames", | |
67 | "ethernet-bus-error", | |
68 | "tx-babbling-errors", | |
69 | "tx-underrun-errors", | |
70 | "rx-skb-missing-errors", | |
71 | "tx-timeout-errors", | |
72 | "tx-rx-64-frames", | |
73 | "tx-rx-65-127-frames", | |
74 | "tx-rx-128-255-frames", | |
75 | "tx-rx-256-511-frames", | |
76 | "tx-rx-512-1023-frames", | |
77 | "tx-rx-1024-1518-frames", | |
78 | "tx-rx-1519-1522-good-vlan", | |
79 | "rx-bytes", | |
80 | "rx-packets", | |
81 | "rx-fcs-errors", | |
82 | "receive-multicast-packet", | |
83 | "receive-broadcast-packet", | |
84 | "rx-control-frame-packets", | |
85 | "rx-pause-frame-packets", | |
86 | "rx-unknown-op-code", | |
87 | "rx-alignment-error", | |
88 | "rx-frame-length-error", | |
89 | "rx-code-error", | |
90 | "rx-carrier-sense-error", | |
91 | "rx-undersize-packets", | |
92 | "rx-oversize-packets", | |
93 | "rx-fragmented-frames", | |
94 | "rx-jabber-frames", | |
95 | "rx-dropped-frames", | |
96 | "tx-byte-counter", | |
97 | "tx-packets", | |
98 | "tx-multicast-packets", | |
99 | "tx-broadcast-packets", | |
100 | "tx-pause-control-frames", | |
101 | "tx-deferral-packets", | |
102 | "tx-excessive-deferral-packets", | |
103 | "tx-single-collision-packets", | |
104 | "tx-multiple-collision-packets", | |
105 | "tx-late-collision-packets", | |
106 | "tx-excessive-collision-packets", | |
107 | "tx-total-collision", | |
108 | "reserved", | |
109 | "tx-dropped-frames", | |
110 | "tx-jabber-frames", | |
111 | "tx-fcs-errors", | |
112 | "tx-control-frames", | |
113 | "tx-oversize-frames", | |
114 | "tx-undersize-frames", | |
115 | "tx-fragmented-frames", | |
116 | }; | |
117 | ||
0bbaf069 KG |
118 | /* Fill in a buffer with the strings which correspond to the |
119 | * stats */ | |
120 | static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf) | |
121 | { | |
122 | struct gfar_private *priv = netdev_priv(dev); | |
7f7f5316 | 123 | |
0bbaf069 KG |
124 | if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) |
125 | memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN); | |
126 | else | |
127 | memcpy(buf, stat_gstrings, | |
128 | GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN); | |
129 | } | |
130 | ||
1da177e4 LT |
131 | /* Fill in an array of 64-bit statistics from various sources. |
132 | * This array will be appended to the end of the ethtool_stats | |
133 | * structure, and returned to user space | |
134 | */ | |
0bbaf069 | 135 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf) |
1da177e4 LT |
136 | { |
137 | int i; | |
138 | struct gfar_private *priv = netdev_priv(dev); | |
1da177e4 | 139 | u64 *extra = (u64 *) & priv->extra_stats; |
1da177e4 | 140 | |
0bbaf069 | 141 | if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { |
cc8c6e37 | 142 | u32 __iomem *rmon = (u32 __iomem *) & priv->regs->rmon; |
0bbaf069 | 143 | struct gfar_stats *stats = (struct gfar_stats *) buf; |
1da177e4 | 144 | |
0bbaf069 | 145 | for (i = 0; i < GFAR_RMON_LEN; i++) |
cc8c6e37 | 146 | stats->rmon[i] = (u64) gfar_read(&rmon[i]); |
1da177e4 | 147 | |
0bbaf069 KG |
148 | for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++) |
149 | stats->extra[i] = extra[i]; | |
150 | } else | |
151 | for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++) | |
152 | buf[i] = extra[i]; | |
1da177e4 LT |
153 | } |
154 | ||
b9f2c044 | 155 | static int gfar_sset_count(struct net_device *dev, int sset) |
1da177e4 | 156 | { |
1da177e4 | 157 | struct gfar_private *priv = netdev_priv(dev); |
1da177e4 | 158 | |
b9f2c044 JG |
159 | switch (sset) { |
160 | case ETH_SS_STATS: | |
161 | if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_RMON) | |
162 | return GFAR_STATS_LEN; | |
163 | else | |
164 | return GFAR_EXTRA_STATS_LEN; | |
165 | default: | |
166 | return -EOPNOTSUPP; | |
167 | } | |
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); | |
1da177e4 LT |
178 | drvinfo->regdump_len = 0; |
179 | drvinfo->eedump_len = 0; | |
180 | } | |
181 | ||
bb40dcbb AF |
182 | |
183 | static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd) | |
184 | { | |
185 | struct gfar_private *priv = netdev_priv(dev); | |
186 | struct phy_device *phydev = priv->phydev; | |
187 | ||
188 | if (NULL == phydev) | |
189 | return -ENODEV; | |
190 | ||
191 | return phy_ethtool_sset(phydev, cmd); | |
192 | } | |
193 | ||
194 | ||
1da177e4 | 195 | /* Return the current settings in the ethtool_cmd structure */ |
0bbaf069 | 196 | static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd) |
1da177e4 LT |
197 | { |
198 | struct gfar_private *priv = netdev_priv(dev); | |
bb40dcbb AF |
199 | struct phy_device *phydev = priv->phydev; |
200 | ||
201 | if (NULL == phydev) | |
202 | return -ENODEV; | |
6aa20a22 | 203 | |
1da177e4 LT |
204 | cmd->maxtxpkt = priv->txcount; |
205 | cmd->maxrxpkt = priv->rxcount; | |
206 | ||
bb40dcbb | 207 | return phy_ethtool_gset(phydev, cmd); |
1da177e4 LT |
208 | } |
209 | ||
210 | /* Return the length of the register structure */ | |
0bbaf069 | 211 | static int gfar_reglen(struct net_device *dev) |
1da177e4 LT |
212 | { |
213 | return sizeof (struct gfar); | |
214 | } | |
215 | ||
216 | /* Return a dump of the GFAR register space */ | |
0bbaf069 | 217 | static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) |
1da177e4 LT |
218 | { |
219 | int i; | |
220 | struct gfar_private *priv = netdev_priv(dev); | |
cc8c6e37 | 221 | u32 __iomem *theregs = (u32 __iomem *) priv->regs; |
1da177e4 LT |
222 | u32 *buf = (u32 *) regbuf; |
223 | ||
224 | for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++) | |
cc8c6e37 | 225 | buf[i] = gfar_read(&theregs[i]); |
1da177e4 LT |
226 | } |
227 | ||
1da177e4 LT |
228 | /* Convert microseconds to ethernet clock ticks, which changes |
229 | * depending on what speed the controller is running at */ | |
230 | static unsigned int gfar_usecs2ticks(struct gfar_private *priv, unsigned int usecs) | |
231 | { | |
232 | unsigned int count; | |
233 | ||
234 | /* The timer is different, depending on the interface speed */ | |
bb40dcbb AF |
235 | switch (priv->phydev->speed) { |
236 | case SPEED_1000: | |
1da177e4 LT |
237 | count = GFAR_GBIT_TIME; |
238 | break; | |
bb40dcbb | 239 | case SPEED_100: |
1da177e4 LT |
240 | count = GFAR_100_TIME; |
241 | break; | |
bb40dcbb | 242 | case SPEED_10: |
1da177e4 LT |
243 | default: |
244 | count = GFAR_10_TIME; | |
245 | break; | |
246 | } | |
247 | ||
248 | /* Make sure we return a number greater than 0 | |
249 | * if usecs > 0 */ | |
250 | return ((usecs * 1000 + count - 1) / count); | |
251 | } | |
252 | ||
253 | /* Convert ethernet clock ticks to microseconds */ | |
254 | static unsigned int gfar_ticks2usecs(struct gfar_private *priv, unsigned int ticks) | |
255 | { | |
256 | unsigned int count; | |
257 | ||
258 | /* The timer is different, depending on the interface speed */ | |
bb40dcbb AF |
259 | switch (priv->phydev->speed) { |
260 | case SPEED_1000: | |
1da177e4 LT |
261 | count = GFAR_GBIT_TIME; |
262 | break; | |
bb40dcbb | 263 | case SPEED_100: |
1da177e4 LT |
264 | count = GFAR_100_TIME; |
265 | break; | |
bb40dcbb | 266 | case SPEED_10: |
1da177e4 LT |
267 | default: |
268 | count = GFAR_10_TIME; | |
269 | break; | |
270 | } | |
271 | ||
272 | /* Make sure we return a number greater than 0 */ | |
273 | /* if ticks is > 0 */ | |
274 | return ((ticks * count) / 1000); | |
275 | } | |
276 | ||
277 | /* Get the coalescing parameters, and put them in the cvals | |
278 | * structure. */ | |
0bbaf069 | 279 | static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
1da177e4 LT |
280 | { |
281 | struct gfar_private *priv = netdev_priv(dev); | |
6aa20a22 | 282 | |
0bbaf069 KG |
283 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
284 | return -EOPNOTSUPP; | |
1da177e4 | 285 | |
bb40dcbb AF |
286 | if (NULL == priv->phydev) |
287 | return -ENODEV; | |
288 | ||
1da177e4 LT |
289 | cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, priv->rxtime); |
290 | cvals->rx_max_coalesced_frames = priv->rxcount; | |
291 | ||
292 | cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, priv->txtime); | |
293 | cvals->tx_max_coalesced_frames = priv->txcount; | |
294 | ||
295 | cvals->use_adaptive_rx_coalesce = 0; | |
296 | cvals->use_adaptive_tx_coalesce = 0; | |
297 | ||
298 | cvals->pkt_rate_low = 0; | |
299 | cvals->rx_coalesce_usecs_low = 0; | |
300 | cvals->rx_max_coalesced_frames_low = 0; | |
301 | cvals->tx_coalesce_usecs_low = 0; | |
302 | cvals->tx_max_coalesced_frames_low = 0; | |
303 | ||
304 | /* When the packet rate is below pkt_rate_high but above | |
305 | * pkt_rate_low (both measured in packets per second) the | |
306 | * normal {rx,tx}_* coalescing parameters are used. | |
307 | */ | |
308 | ||
309 | /* When the packet rate is (measured in packets per second) | |
310 | * is above pkt_rate_high, the {rx,tx}_*_high parameters are | |
311 | * used. | |
312 | */ | |
313 | cvals->pkt_rate_high = 0; | |
314 | cvals->rx_coalesce_usecs_high = 0; | |
315 | cvals->rx_max_coalesced_frames_high = 0; | |
316 | cvals->tx_coalesce_usecs_high = 0; | |
317 | cvals->tx_max_coalesced_frames_high = 0; | |
318 | ||
319 | /* How often to do adaptive coalescing packet rate sampling, | |
320 | * measured in seconds. Must not be zero. | |
321 | */ | |
322 | cvals->rate_sample_interval = 0; | |
323 | ||
324 | return 0; | |
325 | } | |
326 | ||
327 | /* Change the coalescing values. | |
328 | * Both cvals->*_usecs and cvals->*_frames have to be > 0 | |
329 | * in order for coalescing to be active | |
330 | */ | |
0bbaf069 | 331 | static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
1da177e4 LT |
332 | { |
333 | struct gfar_private *priv = netdev_priv(dev); | |
334 | ||
0bbaf069 KG |
335 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
336 | return -EOPNOTSUPP; | |
337 | ||
1da177e4 LT |
338 | /* Set up rx coalescing */ |
339 | if ((cvals->rx_coalesce_usecs == 0) || | |
340 | (cvals->rx_max_coalesced_frames == 0)) | |
341 | priv->rxcoalescing = 0; | |
342 | else | |
343 | priv->rxcoalescing = 1; | |
344 | ||
bb40dcbb AF |
345 | if (NULL == priv->phydev) |
346 | return -ENODEV; | |
347 | ||
348 | /* Check the bounds of the values */ | |
349 | if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) { | |
350 | pr_info("Coalescing is limited to %d microseconds\n", | |
351 | GFAR_MAX_COAL_USECS); | |
352 | return -EINVAL; | |
353 | } | |
354 | ||
355 | if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { | |
356 | pr_info("Coalescing is limited to %d frames\n", | |
357 | GFAR_MAX_COAL_FRAMES); | |
358 | return -EINVAL; | |
359 | } | |
360 | ||
1da177e4 LT |
361 | priv->rxtime = gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs); |
362 | priv->rxcount = cvals->rx_max_coalesced_frames; | |
363 | ||
364 | /* Set up tx coalescing */ | |
365 | if ((cvals->tx_coalesce_usecs == 0) || | |
366 | (cvals->tx_max_coalesced_frames == 0)) | |
367 | priv->txcoalescing = 0; | |
368 | else | |
369 | priv->txcoalescing = 1; | |
370 | ||
bb40dcbb AF |
371 | /* Check the bounds of the values */ |
372 | if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) { | |
373 | pr_info("Coalescing is limited to %d microseconds\n", | |
374 | GFAR_MAX_COAL_USECS); | |
375 | return -EINVAL; | |
376 | } | |
377 | ||
378 | if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { | |
379 | pr_info("Coalescing is limited to %d frames\n", | |
380 | GFAR_MAX_COAL_FRAMES); | |
381 | return -EINVAL; | |
382 | } | |
383 | ||
1da177e4 LT |
384 | priv->txtime = gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs); |
385 | priv->txcount = cvals->tx_max_coalesced_frames; | |
386 | ||
387 | if (priv->rxcoalescing) | |
388 | gfar_write(&priv->regs->rxic, | |
389 | mk_ic_value(priv->rxcount, priv->rxtime)); | |
390 | else | |
391 | gfar_write(&priv->regs->rxic, 0); | |
392 | ||
393 | if (priv->txcoalescing) | |
394 | gfar_write(&priv->regs->txic, | |
395 | mk_ic_value(priv->txcount, priv->txtime)); | |
396 | else | |
397 | gfar_write(&priv->regs->txic, 0); | |
398 | ||
399 | return 0; | |
400 | } | |
401 | ||
402 | /* Fills in rvals with the current ring parameters. Currently, | |
403 | * rx, rx_mini, and rx_jumbo rings are the same size, as mini and | |
404 | * jumbo are ignored by the driver */ | |
0bbaf069 | 405 | static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
1da177e4 LT |
406 | { |
407 | struct gfar_private *priv = netdev_priv(dev); | |
408 | ||
409 | rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE; | |
410 | rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE; | |
411 | rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE; | |
412 | rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE; | |
413 | ||
414 | /* Values changeable by the user. The valid values are | |
415 | * in the range 1 to the "*_max_pending" counterpart above. | |
416 | */ | |
417 | rvals->rx_pending = priv->rx_ring_size; | |
418 | rvals->rx_mini_pending = priv->rx_ring_size; | |
419 | rvals->rx_jumbo_pending = priv->rx_ring_size; | |
420 | rvals->tx_pending = priv->tx_ring_size; | |
421 | } | |
422 | ||
423 | /* Change the current ring parameters, stopping the controller if | |
424 | * necessary so that we don't mess things up while we're in | |
425 | * motion. We wait for the ring to be clean before reallocating | |
426 | * the rings. */ | |
0bbaf069 | 427 | static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
1da177e4 | 428 | { |
1da177e4 LT |
429 | struct gfar_private *priv = netdev_priv(dev); |
430 | int err = 0; | |
431 | ||
432 | if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE) | |
433 | return -EINVAL; | |
434 | ||
435 | if (!is_power_of_2(rvals->rx_pending)) { | |
436 | printk("%s: Ring sizes must be a power of 2\n", | |
437 | dev->name); | |
438 | return -EINVAL; | |
439 | } | |
440 | ||
441 | if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE) | |
442 | return -EINVAL; | |
443 | ||
444 | if (!is_power_of_2(rvals->tx_pending)) { | |
445 | printk("%s: Ring sizes must be a power of 2\n", | |
446 | dev->name); | |
447 | return -EINVAL; | |
448 | } | |
449 | ||
0bbaf069 KG |
450 | if (dev->flags & IFF_UP) { |
451 | unsigned long flags; | |
1da177e4 | 452 | |
0bbaf069 KG |
453 | /* Halt TX and RX, and process the frames which |
454 | * have already been received */ | |
fef6108d AF |
455 | spin_lock_irqsave(&priv->txlock, flags); |
456 | spin_lock(&priv->rxlock); | |
457 | ||
0bbaf069 KG |
458 | gfar_halt(dev); |
459 | gfar_clean_rx_ring(dev, priv->rx_ring_size); | |
fef6108d AF |
460 | |
461 | spin_unlock(&priv->rxlock); | |
462 | spin_unlock_irqrestore(&priv->txlock, flags); | |
1da177e4 | 463 | |
0bbaf069 KG |
464 | /* Now we take down the rings to rebuild them */ |
465 | stop_gfar(dev); | |
466 | } | |
1da177e4 | 467 | |
0bbaf069 KG |
468 | /* Change the size */ |
469 | priv->rx_ring_size = rvals->rx_pending; | |
470 | priv->tx_ring_size = rvals->tx_pending; | |
1da177e4 | 471 | |
0bbaf069 KG |
472 | /* Rebuild the rings with the new size */ |
473 | if (dev->flags & IFF_UP) | |
474 | err = startup_gfar(dev); | |
1da177e4 | 475 | |
0bbaf069 KG |
476 | return err; |
477 | } | |
1da177e4 | 478 | |
0bbaf069 KG |
479 | static int gfar_set_rx_csum(struct net_device *dev, uint32_t data) |
480 | { | |
481 | struct gfar_private *priv = netdev_priv(dev); | |
482 | int err = 0; | |
1da177e4 | 483 | |
0bbaf069 KG |
484 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) |
485 | return -EOPNOTSUPP; | |
486 | ||
487 | if (dev->flags & IFF_UP) { | |
488 | unsigned long flags; | |
489 | ||
490 | /* Halt TX and RX, and process the frames which | |
491 | * have already been received */ | |
fef6108d AF |
492 | spin_lock_irqsave(&priv->txlock, flags); |
493 | spin_lock(&priv->rxlock); | |
494 | ||
0bbaf069 KG |
495 | gfar_halt(dev); |
496 | gfar_clean_rx_ring(dev, priv->rx_ring_size); | |
fef6108d AF |
497 | |
498 | spin_unlock(&priv->rxlock); | |
499 | spin_unlock_irqrestore(&priv->txlock, flags); | |
0bbaf069 KG |
500 | |
501 | /* Now we take down the rings to rebuild them */ | |
1da177e4 LT |
502 | stop_gfar(dev); |
503 | } | |
504 | ||
0bbaf069 | 505 | priv->rx_csum_enable = data; |
1da177e4 LT |
506 | |
507 | if (dev->flags & IFF_UP) | |
508 | err = startup_gfar(dev); | |
509 | ||
510 | return err; | |
511 | } | |
512 | ||
0bbaf069 KG |
513 | static uint32_t gfar_get_rx_csum(struct net_device *dev) |
514 | { | |
515 | struct gfar_private *priv = netdev_priv(dev); | |
516 | ||
517 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) | |
518 | return 0; | |
519 | ||
520 | return priv->rx_csum_enable; | |
521 | } | |
522 | ||
523 | static int gfar_set_tx_csum(struct net_device *dev, uint32_t data) | |
524 | { | |
525 | unsigned long flags; | |
526 | struct gfar_private *priv = netdev_priv(dev); | |
527 | ||
528 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) | |
529 | return -EOPNOTSUPP; | |
530 | ||
fef6108d | 531 | spin_lock_irqsave(&priv->txlock, flags); |
0bbaf069 KG |
532 | gfar_halt(dev); |
533 | ||
534 | if (data) | |
535 | dev->features |= NETIF_F_IP_CSUM; | |
536 | else | |
537 | dev->features &= ~NETIF_F_IP_CSUM; | |
538 | ||
539 | gfar_start(dev); | |
fef6108d | 540 | spin_unlock_irqrestore(&priv->txlock, flags); |
0bbaf069 KG |
541 | |
542 | return 0; | |
543 | } | |
544 | ||
545 | static uint32_t gfar_get_tx_csum(struct net_device *dev) | |
546 | { | |
547 | struct gfar_private *priv = netdev_priv(dev); | |
548 | ||
549 | if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) | |
550 | return 0; | |
551 | ||
552 | return (dev->features & NETIF_F_IP_CSUM) != 0; | |
553 | } | |
554 | ||
555 | static uint32_t gfar_get_msglevel(struct net_device *dev) | |
6aa20a22 | 556 | { |
0bbaf069 KG |
557 | struct gfar_private *priv = netdev_priv(dev); |
558 | return priv->msg_enable; | |
6aa20a22 JG |
559 | } |
560 | ||
0bbaf069 | 561 | static void gfar_set_msglevel(struct net_device *dev, uint32_t data) |
6aa20a22 | 562 | { |
0bbaf069 KG |
563 | struct gfar_private *priv = netdev_priv(dev); |
564 | priv->msg_enable = data; | |
565 | } | |
566 | ||
567 | ||
7282d491 | 568 | const struct ethtool_ops gfar_ethtool_ops = { |
1da177e4 | 569 | .get_settings = gfar_gsettings, |
bb40dcbb | 570 | .set_settings = gfar_ssettings, |
1da177e4 LT |
571 | .get_drvinfo = gfar_gdrvinfo, |
572 | .get_regs_len = gfar_reglen, | |
573 | .get_regs = gfar_get_regs, | |
574 | .get_link = ethtool_op_get_link, | |
575 | .get_coalesce = gfar_gcoalesce, | |
576 | .set_coalesce = gfar_scoalesce, | |
577 | .get_ringparam = gfar_gringparam, | |
578 | .set_ringparam = gfar_sringparam, | |
579 | .get_strings = gfar_gstrings, | |
b9f2c044 | 580 | .get_sset_count = gfar_sset_count, |
1da177e4 | 581 | .get_ethtool_stats = gfar_fill_stats, |
0bbaf069 KG |
582 | .get_rx_csum = gfar_get_rx_csum, |
583 | .get_tx_csum = gfar_get_tx_csum, | |
584 | .set_rx_csum = gfar_set_rx_csum, | |
585 | .set_tx_csum = gfar_set_tx_csum, | |
586 | .get_msglevel = gfar_get_msglevel, | |
587 | .set_msglevel = gfar_set_msglevel, | |
1da177e4 | 588 | }; |