Root/
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 |
9 | * Maintainer: Kumar Gala |
10 | * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com> |
11 | * |
12 | * Copyright 2003-2006, 2008-2009 Freescale Semiconductor, Inc. |
13 | * |
14 | * This software may be used and distributed according to |
15 | * the terms of the GNU Public License, Version 2, incorporated herein |
16 | * by reference. |
17 | */ |
18 | |
19 | #include <linux/kernel.h> |
20 | #include <linux/string.h> |
21 | #include <linux/errno.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> |
35 | #include <linux/crc32.h> |
36 | #include <asm/types.h> |
37 | #include <linux/ethtool.h> |
38 | #include <linux/mii.h> |
39 | #include <linux/phy.h> |
40 | |
41 | #include "gianfar.h" |
42 | |
43 | extern void gfar_start(struct net_device *dev); |
44 | extern int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit); |
45 | |
46 | #define GFAR_MAX_COAL_USECS 0xffff |
47 | #define GFAR_MAX_COAL_FRAMES 0xff |
48 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, |
49 | u64 * buf); |
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); |
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 | |
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); |
123 | |
124 | if (priv->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 | |
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 | */ |
135 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, u64 * buf) |
136 | { |
137 | int i; |
138 | struct gfar_private *priv = netdev_priv(dev); |
139 | struct gfar __iomem *regs = priv->gfargrp[0].regs; |
140 | u64 *extra = (u64 *) & priv->extra_stats; |
141 | |
142 | if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { |
143 | u32 __iomem *rmon = (u32 __iomem *) ®s->rmon; |
144 | struct gfar_stats *stats = (struct gfar_stats *) buf; |
145 | |
146 | for (i = 0; i < GFAR_RMON_LEN; i++) |
147 | stats->rmon[i] = (u64) gfar_read(&rmon[i]); |
148 | |
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]; |
154 | } |
155 | |
156 | static int gfar_sset_count(struct net_device *dev, int sset) |
157 | { |
158 | struct gfar_private *priv = netdev_priv(dev); |
159 | |
160 | switch (sset) { |
161 | case ETH_SS_STATS: |
162 | if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) |
163 | return GFAR_STATS_LEN; |
164 | else |
165 | return GFAR_EXTRA_STATS_LEN; |
166 | default: |
167 | return -EOPNOTSUPP; |
168 | } |
169 | } |
170 | |
171 | /* Fills in the drvinfo structure with some basic info */ |
172 | static void gfar_gdrvinfo(struct net_device *dev, struct |
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->regdump_len = 0; |
180 | drvinfo->eedump_len = 0; |
181 | } |
182 | |
183 | |
184 | static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd) |
185 | { |
186 | struct gfar_private *priv = netdev_priv(dev); |
187 | struct phy_device *phydev = priv->phydev; |
188 | |
189 | if (NULL == phydev) |
190 | return -ENODEV; |
191 | |
192 | return phy_ethtool_sset(phydev, cmd); |
193 | } |
194 | |
195 | |
196 | /* Return the current settings in the ethtool_cmd structure */ |
197 | static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd) |
198 | { |
199 | struct gfar_private *priv = netdev_priv(dev); |
200 | struct phy_device *phydev = priv->phydev; |
201 | struct gfar_priv_rx_q *rx_queue = NULL; |
202 | struct gfar_priv_tx_q *tx_queue = NULL; |
203 | |
204 | if (NULL == phydev) |
205 | return -ENODEV; |
206 | tx_queue = priv->tx_queue[0]; |
207 | rx_queue = priv->rx_queue[0]; |
208 | |
209 | /* etsec-1.7 and older versions have only one txic |
210 | * and rxic regs although they support multiple queues */ |
211 | cmd->maxtxpkt = get_icft_value(tx_queue->txic); |
212 | cmd->maxrxpkt = get_icft_value(rx_queue->rxic); |
213 | |
214 | return phy_ethtool_gset(phydev, cmd); |
215 | } |
216 | |
217 | /* Return the length of the register structure */ |
218 | static int gfar_reglen(struct net_device *dev) |
219 | { |
220 | return sizeof (struct gfar); |
221 | } |
222 | |
223 | /* Return a dump of the GFAR register space */ |
224 | static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) |
225 | { |
226 | int i; |
227 | struct gfar_private *priv = netdev_priv(dev); |
228 | u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs; |
229 | u32 *buf = (u32 *) regbuf; |
230 | |
231 | for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++) |
232 | buf[i] = gfar_read(&theregs[i]); |
233 | } |
234 | |
235 | /* Convert microseconds to ethernet clock ticks, which changes |
236 | * depending on what speed the controller is running at */ |
237 | static unsigned int gfar_usecs2ticks(struct gfar_private *priv, unsigned int usecs) |
238 | { |
239 | unsigned int count; |
240 | |
241 | /* The timer is different, depending on the interface speed */ |
242 | switch (priv->phydev->speed) { |
243 | case SPEED_1000: |
244 | count = GFAR_GBIT_TIME; |
245 | break; |
246 | case SPEED_100: |
247 | count = GFAR_100_TIME; |
248 | break; |
249 | case SPEED_10: |
250 | default: |
251 | count = GFAR_10_TIME; |
252 | break; |
253 | } |
254 | |
255 | /* Make sure we return a number greater than 0 |
256 | * if usecs > 0 */ |
257 | return ((usecs * 1000 + count - 1) / count); |
258 | } |
259 | |
260 | /* Convert ethernet clock ticks to microseconds */ |
261 | static unsigned int gfar_ticks2usecs(struct gfar_private *priv, unsigned int ticks) |
262 | { |
263 | unsigned int count; |
264 | |
265 | /* The timer is different, depending on the interface speed */ |
266 | switch (priv->phydev->speed) { |
267 | case SPEED_1000: |
268 | count = GFAR_GBIT_TIME; |
269 | break; |
270 | case SPEED_100: |
271 | count = GFAR_100_TIME; |
272 | break; |
273 | case SPEED_10: |
274 | default: |
275 | count = GFAR_10_TIME; |
276 | break; |
277 | } |
278 | |
279 | /* Make sure we return a number greater than 0 */ |
280 | /* if ticks is > 0 */ |
281 | return ((ticks * count) / 1000); |
282 | } |
283 | |
284 | /* Get the coalescing parameters, and put them in the cvals |
285 | * structure. */ |
286 | static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
287 | { |
288 | struct gfar_private *priv = netdev_priv(dev); |
289 | struct gfar_priv_rx_q *rx_queue = NULL; |
290 | struct gfar_priv_tx_q *tx_queue = NULL; |
291 | unsigned long rxtime; |
292 | unsigned long rxcount; |
293 | unsigned long txtime; |
294 | unsigned long txcount; |
295 | |
296 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
297 | return -EOPNOTSUPP; |
298 | |
299 | if (NULL == priv->phydev) |
300 | return -ENODEV; |
301 | |
302 | rx_queue = priv->rx_queue[0]; |
303 | tx_queue = priv->tx_queue[0]; |
304 | |
305 | rxtime = get_ictt_value(rx_queue->rxic); |
306 | rxcount = get_icft_value(rx_queue->rxic); |
307 | txtime = get_ictt_value(tx_queue->txic); |
308 | txcount = get_icft_value(tx_queue->txic); |
309 | cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime); |
310 | cvals->rx_max_coalesced_frames = rxcount; |
311 | |
312 | cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime); |
313 | cvals->tx_max_coalesced_frames = txcount; |
314 | |
315 | cvals->use_adaptive_rx_coalesce = 0; |
316 | cvals->use_adaptive_tx_coalesce = 0; |
317 | |
318 | cvals->pkt_rate_low = 0; |
319 | cvals->rx_coalesce_usecs_low = 0; |
320 | cvals->rx_max_coalesced_frames_low = 0; |
321 | cvals->tx_coalesce_usecs_low = 0; |
322 | cvals->tx_max_coalesced_frames_low = 0; |
323 | |
324 | /* When the packet rate is below pkt_rate_high but above |
325 | * pkt_rate_low (both measured in packets per second) the |
326 | * normal {rx,tx}_* coalescing parameters are used. |
327 | */ |
328 | |
329 | /* When the packet rate is (measured in packets per second) |
330 | * is above pkt_rate_high, the {rx,tx}_*_high parameters are |
331 | * used. |
332 | */ |
333 | cvals->pkt_rate_high = 0; |
334 | cvals->rx_coalesce_usecs_high = 0; |
335 | cvals->rx_max_coalesced_frames_high = 0; |
336 | cvals->tx_coalesce_usecs_high = 0; |
337 | cvals->tx_max_coalesced_frames_high = 0; |
338 | |
339 | /* How often to do adaptive coalescing packet rate sampling, |
340 | * measured in seconds. Must not be zero. |
341 | */ |
342 | cvals->rate_sample_interval = 0; |
343 | |
344 | return 0; |
345 | } |
346 | |
347 | /* Change the coalescing values. |
348 | * Both cvals->*_usecs and cvals->*_frames have to be > 0 |
349 | * in order for coalescing to be active |
350 | */ |
351 | static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
352 | { |
353 | struct gfar_private *priv = netdev_priv(dev); |
354 | int i = 0; |
355 | |
356 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
357 | return -EOPNOTSUPP; |
358 | |
359 | /* Set up rx coalescing */ |
360 | /* As of now, we will enable/disable coalescing for all |
361 | * queues together in case of eTSEC2, this will be modified |
362 | * along with the ethtool interface */ |
363 | if ((cvals->rx_coalesce_usecs == 0) || |
364 | (cvals->rx_max_coalesced_frames == 0)) { |
365 | for (i = 0; i < priv->num_rx_queues; i++) |
366 | priv->rx_queue[i]->rxcoalescing = 0; |
367 | } else { |
368 | for (i = 0; i < priv->num_rx_queues; i++) |
369 | priv->rx_queue[i]->rxcoalescing = 1; |
370 | } |
371 | |
372 | if (NULL == priv->phydev) |
373 | return -ENODEV; |
374 | |
375 | /* Check the bounds of the values */ |
376 | if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) { |
377 | pr_info("Coalescing is limited to %d microseconds\n", |
378 | GFAR_MAX_COAL_USECS); |
379 | return -EINVAL; |
380 | } |
381 | |
382 | if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { |
383 | pr_info("Coalescing is limited to %d frames\n", |
384 | GFAR_MAX_COAL_FRAMES); |
385 | return -EINVAL; |
386 | } |
387 | |
388 | for (i = 0; i < priv->num_rx_queues; i++) { |
389 | priv->rx_queue[i]->rxic = mk_ic_value( |
390 | cvals->rx_max_coalesced_frames, |
391 | gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs)); |
392 | } |
393 | |
394 | /* Set up tx coalescing */ |
395 | if ((cvals->tx_coalesce_usecs == 0) || |
396 | (cvals->tx_max_coalesced_frames == 0)) { |
397 | for (i = 0; i < priv->num_tx_queues; i++) |
398 | priv->tx_queue[i]->txcoalescing = 0; |
399 | } else { |
400 | for (i = 0; i < priv->num_tx_queues; i++) |
401 | priv->tx_queue[i]->txcoalescing = 1; |
402 | } |
403 | |
404 | /* Check the bounds of the values */ |
405 | if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) { |
406 | pr_info("Coalescing is limited to %d microseconds\n", |
407 | GFAR_MAX_COAL_USECS); |
408 | return -EINVAL; |
409 | } |
410 | |
411 | if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { |
412 | pr_info("Coalescing is limited to %d frames\n", |
413 | GFAR_MAX_COAL_FRAMES); |
414 | return -EINVAL; |
415 | } |
416 | |
417 | for (i = 0; i < priv->num_tx_queues; i++) { |
418 | priv->tx_queue[i]->txic = mk_ic_value( |
419 | cvals->tx_max_coalesced_frames, |
420 | gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs)); |
421 | } |
422 | |
423 | gfar_configure_coalescing(priv, 0xFF, 0xFF); |
424 | |
425 | return 0; |
426 | } |
427 | |
428 | /* Fills in rvals with the current ring parameters. Currently, |
429 | * rx, rx_mini, and rx_jumbo rings are the same size, as mini and |
430 | * jumbo are ignored by the driver */ |
431 | static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
432 | { |
433 | struct gfar_private *priv = netdev_priv(dev); |
434 | struct gfar_priv_tx_q *tx_queue = NULL; |
435 | struct gfar_priv_rx_q *rx_queue = NULL; |
436 | |
437 | tx_queue = priv->tx_queue[0]; |
438 | rx_queue = priv->rx_queue[0]; |
439 | |
440 | rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE; |
441 | rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE; |
442 | rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE; |
443 | rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE; |
444 | |
445 | /* Values changeable by the user. The valid values are |
446 | * in the range 1 to the "*_max_pending" counterpart above. |
447 | */ |
448 | rvals->rx_pending = rx_queue->rx_ring_size; |
449 | rvals->rx_mini_pending = rx_queue->rx_ring_size; |
450 | rvals->rx_jumbo_pending = rx_queue->rx_ring_size; |
451 | rvals->tx_pending = tx_queue->tx_ring_size; |
452 | } |
453 | |
454 | /* Change the current ring parameters, stopping the controller if |
455 | * necessary so that we don't mess things up while we're in |
456 | * motion. We wait for the ring to be clean before reallocating |
457 | * the rings. */ |
458 | static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
459 | { |
460 | struct gfar_private *priv = netdev_priv(dev); |
461 | int err = 0, i = 0; |
462 | |
463 | if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE) |
464 | return -EINVAL; |
465 | |
466 | if (!is_power_of_2(rvals->rx_pending)) { |
467 | printk("%s: Ring sizes must be a power of 2\n", |
468 | dev->name); |
469 | return -EINVAL; |
470 | } |
471 | |
472 | if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE) |
473 | return -EINVAL; |
474 | |
475 | if (!is_power_of_2(rvals->tx_pending)) { |
476 | printk("%s: Ring sizes must be a power of 2\n", |
477 | dev->name); |
478 | return -EINVAL; |
479 | } |
480 | |
481 | |
482 | if (dev->flags & IFF_UP) { |
483 | unsigned long flags; |
484 | |
485 | /* Halt TX and RX, and process the frames which |
486 | * have already been received */ |
487 | local_irq_save(flags); |
488 | lock_tx_qs(priv); |
489 | lock_rx_qs(priv); |
490 | |
491 | gfar_halt(dev); |
492 | |
493 | unlock_rx_qs(priv); |
494 | unlock_tx_qs(priv); |
495 | local_irq_restore(flags); |
496 | |
497 | for (i = 0; i < priv->num_rx_queues; i++) |
498 | gfar_clean_rx_ring(priv->rx_queue[i], |
499 | priv->rx_queue[i]->rx_ring_size); |
500 | |
501 | /* Now we take down the rings to rebuild them */ |
502 | stop_gfar(dev); |
503 | } |
504 | |
505 | /* Change the size */ |
506 | for (i = 0; i < priv->num_rx_queues; i++) { |
507 | priv->rx_queue[i]->rx_ring_size = rvals->rx_pending; |
508 | priv->tx_queue[i]->tx_ring_size = rvals->tx_pending; |
509 | priv->tx_queue[i]->num_txbdfree = priv->tx_queue[i]->tx_ring_size; |
510 | } |
511 | |
512 | /* Rebuild the rings with the new size */ |
513 | if (dev->flags & IFF_UP) { |
514 | err = startup_gfar(dev); |
515 | netif_tx_wake_all_queues(dev); |
516 | } |
517 | return err; |
518 | } |
519 | |
520 | static int gfar_set_rx_csum(struct net_device *dev, uint32_t data) |
521 | { |
522 | struct gfar_private *priv = netdev_priv(dev); |
523 | unsigned long flags; |
524 | int err = 0, i = 0; |
525 | |
526 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) |
527 | return -EOPNOTSUPP; |
528 | |
529 | |
530 | if (dev->flags & IFF_UP) { |
531 | /* Halt TX and RX, and process the frames which |
532 | * have already been received */ |
533 | local_irq_save(flags); |
534 | lock_tx_qs(priv); |
535 | lock_rx_qs(priv); |
536 | |
537 | gfar_halt(dev); |
538 | |
539 | unlock_tx_qs(priv); |
540 | unlock_rx_qs(priv); |
541 | local_irq_save(flags); |
542 | |
543 | for (i = 0; i < priv->num_rx_queues; i++) |
544 | gfar_clean_rx_ring(priv->rx_queue[i], |
545 | priv->rx_queue[i]->rx_ring_size); |
546 | |
547 | /* Now we take down the rings to rebuild them */ |
548 | stop_gfar(dev); |
549 | } |
550 | |
551 | spin_lock_irqsave(&priv->bflock, flags); |
552 | priv->rx_csum_enable = data; |
553 | spin_unlock_irqrestore(&priv->bflock, flags); |
554 | |
555 | if (dev->flags & IFF_UP) { |
556 | err = startup_gfar(dev); |
557 | netif_tx_wake_all_queues(dev); |
558 | } |
559 | return err; |
560 | } |
561 | |
562 | static uint32_t gfar_get_rx_csum(struct net_device *dev) |
563 | { |
564 | struct gfar_private *priv = netdev_priv(dev); |
565 | |
566 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) |
567 | return 0; |
568 | |
569 | return priv->rx_csum_enable; |
570 | } |
571 | |
572 | static int gfar_set_tx_csum(struct net_device *dev, uint32_t data) |
573 | { |
574 | struct gfar_private *priv = netdev_priv(dev); |
575 | |
576 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) |
577 | return -EOPNOTSUPP; |
578 | |
579 | netif_tx_lock_bh(dev); |
580 | |
581 | if (data) |
582 | dev->features |= NETIF_F_IP_CSUM; |
583 | else |
584 | dev->features &= ~NETIF_F_IP_CSUM; |
585 | |
586 | netif_tx_unlock_bh(dev); |
587 | |
588 | return 0; |
589 | } |
590 | |
591 | static uint32_t gfar_get_tx_csum(struct net_device *dev) |
592 | { |
593 | struct gfar_private *priv = netdev_priv(dev); |
594 | |
595 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) |
596 | return 0; |
597 | |
598 | return (dev->features & NETIF_F_IP_CSUM) != 0; |
599 | } |
600 | |
601 | static uint32_t gfar_get_msglevel(struct net_device *dev) |
602 | { |
603 | struct gfar_private *priv = netdev_priv(dev); |
604 | return priv->msg_enable; |
605 | } |
606 | |
607 | static void gfar_set_msglevel(struct net_device *dev, uint32_t data) |
608 | { |
609 | struct gfar_private *priv = netdev_priv(dev); |
610 | priv->msg_enable = data; |
611 | } |
612 | |
613 | #ifdef CONFIG_PM |
614 | static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
615 | { |
616 | struct gfar_private *priv = netdev_priv(dev); |
617 | |
618 | if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) { |
619 | wol->supported = WAKE_MAGIC; |
620 | wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0; |
621 | } else { |
622 | wol->supported = wol->wolopts = 0; |
623 | } |
624 | } |
625 | |
626 | static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) |
627 | { |
628 | struct gfar_private *priv = netdev_priv(dev); |
629 | unsigned long flags; |
630 | |
631 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && |
632 | wol->wolopts != 0) |
633 | return -EINVAL; |
634 | |
635 | if (wol->wolopts & ~WAKE_MAGIC) |
636 | return -EINVAL; |
637 | |
638 | spin_lock_irqsave(&priv->bflock, flags); |
639 | priv->wol_en = wol->wolopts & WAKE_MAGIC ? 1 : 0; |
640 | device_set_wakeup_enable(&dev->dev, priv->wol_en); |
641 | spin_unlock_irqrestore(&priv->bflock, flags); |
642 | |
643 | return 0; |
644 | } |
645 | #endif |
646 | |
647 | static int gfar_ethflow_to_class(int flow_type, u64 *class) |
648 | { |
649 | switch (flow_type) { |
650 | case TCP_V4_FLOW: |
651 | *class = CLASS_CODE_TCP_IPV4; |
652 | break; |
653 | case UDP_V4_FLOW: |
654 | *class = CLASS_CODE_UDP_IPV4; |
655 | break; |
656 | case AH_V4_FLOW: |
657 | case ESP_V4_FLOW: |
658 | *class = CLASS_CODE_AH_ESP_IPV4; |
659 | break; |
660 | case SCTP_V4_FLOW: |
661 | *class = CLASS_CODE_SCTP_IPV4; |
662 | break; |
663 | case TCP_V6_FLOW: |
664 | *class = CLASS_CODE_TCP_IPV6; |
665 | break; |
666 | case UDP_V6_FLOW: |
667 | *class = CLASS_CODE_UDP_IPV6; |
668 | break; |
669 | case AH_V6_FLOW: |
670 | case ESP_V6_FLOW: |
671 | *class = CLASS_CODE_AH_ESP_IPV6; |
672 | break; |
673 | case SCTP_V6_FLOW: |
674 | *class = CLASS_CODE_SCTP_IPV6; |
675 | break; |
676 | default: |
677 | return 0; |
678 | } |
679 | |
680 | return 1; |
681 | } |
682 | |
683 | static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow) |
684 | { |
685 | u32 fcr = 0x0, fpr = FPR_FILER_MASK; |
686 | |
687 | if (ethflow & RXH_L2DA) { |
688 | fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH | |
689 | RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; |
690 | ftp_rqfpr[priv->cur_filer_idx] = fpr; |
691 | ftp_rqfcr[priv->cur_filer_idx] = fcr; |
692 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
693 | priv->cur_filer_idx = priv->cur_filer_idx - 1; |
694 | |
695 | fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH | |
696 | RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; |
697 | ftp_rqfpr[priv->cur_filer_idx] = fpr; |
698 | ftp_rqfcr[priv->cur_filer_idx] = fcr; |
699 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
700 | priv->cur_filer_idx = priv->cur_filer_idx - 1; |
701 | } |
702 | |
703 | if (ethflow & RXH_VLAN) { |
704 | fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH | |
705 | RQFCR_AND | RQFCR_HASHTBL_0; |
706 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
707 | ftp_rqfpr[priv->cur_filer_idx] = fpr; |
708 | ftp_rqfcr[priv->cur_filer_idx] = fcr; |
709 | priv->cur_filer_idx = priv->cur_filer_idx - 1; |
710 | } |
711 | |
712 | if (ethflow & RXH_IP_SRC) { |
713 | fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | |
714 | RQFCR_AND | RQFCR_HASHTBL_0; |
715 | ftp_rqfpr[priv->cur_filer_idx] = fpr; |
716 | ftp_rqfcr[priv->cur_filer_idx] = fcr; |
717 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
718 | priv->cur_filer_idx = priv->cur_filer_idx - 1; |
719 | } |
720 | |
721 | if (ethflow & (RXH_IP_DST)) { |
722 | fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | |
723 | RQFCR_AND | RQFCR_HASHTBL_0; |
724 | ftp_rqfpr[priv->cur_filer_idx] = fpr; |
725 | ftp_rqfcr[priv->cur_filer_idx] = fcr; |
726 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
727 | priv->cur_filer_idx = priv->cur_filer_idx - 1; |
728 | } |
729 | |
730 | if (ethflow & RXH_L3_PROTO) { |
731 | fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH | |
732 | RQFCR_AND | RQFCR_HASHTBL_0; |
733 | ftp_rqfpr[priv->cur_filer_idx] = fpr; |
734 | ftp_rqfcr[priv->cur_filer_idx] = fcr; |
735 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
736 | priv->cur_filer_idx = priv->cur_filer_idx - 1; |
737 | } |
738 | |
739 | if (ethflow & RXH_L4_B_0_1) { |
740 | fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | |
741 | RQFCR_AND | RQFCR_HASHTBL_0; |
742 | ftp_rqfpr[priv->cur_filer_idx] = fpr; |
743 | ftp_rqfcr[priv->cur_filer_idx] = fcr; |
744 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
745 | priv->cur_filer_idx = priv->cur_filer_idx - 1; |
746 | } |
747 | |
748 | if (ethflow & RXH_L4_B_2_3) { |
749 | fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | |
750 | RQFCR_AND | RQFCR_HASHTBL_0; |
751 | ftp_rqfpr[priv->cur_filer_idx] = fpr; |
752 | ftp_rqfcr[priv->cur_filer_idx] = fcr; |
753 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
754 | priv->cur_filer_idx = priv->cur_filer_idx - 1; |
755 | } |
756 | } |
757 | |
758 | static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, u64 class) |
759 | { |
760 | unsigned int last_rule_idx = priv->cur_filer_idx; |
761 | unsigned int cmp_rqfpr; |
762 | unsigned int local_rqfpr[MAX_FILER_IDX + 1]; |
763 | unsigned int local_rqfcr[MAX_FILER_IDX + 1]; |
764 | int i = 0x0, k = 0x0; |
765 | int j = MAX_FILER_IDX, l = 0x0; |
766 | |
767 | switch (class) { |
768 | case TCP_V4_FLOW: |
769 | cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP; |
770 | break; |
771 | case UDP_V4_FLOW: |
772 | cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP; |
773 | break; |
774 | case TCP_V6_FLOW: |
775 | cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP; |
776 | break; |
777 | case UDP_V6_FLOW: |
778 | cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP; |
779 | break; |
780 | case IPV4_FLOW: |
781 | cmp_rqfpr = RQFPR_IPV4; |
782 | case IPV6_FLOW: |
783 | cmp_rqfpr = RQFPR_IPV6; |
784 | break; |
785 | default: |
786 | printk(KERN_ERR "Right now this class is not supported\n"); |
787 | return 0; |
788 | } |
789 | |
790 | for (i = 0; i < MAX_FILER_IDX + 1; i++) { |
791 | local_rqfpr[j] = ftp_rqfpr[i]; |
792 | local_rqfcr[j] = ftp_rqfcr[i]; |
793 | j--; |
794 | if ((ftp_rqfcr[i] == (RQFCR_PID_PARSE | |
795 | RQFCR_CLE |RQFCR_AND)) && |
796 | (ftp_rqfpr[i] == cmp_rqfpr)) |
797 | break; |
798 | } |
799 | |
800 | if (i == MAX_FILER_IDX + 1) { |
801 | printk(KERN_ERR "No parse rule found, "); |
802 | printk(KERN_ERR "can't create hash rules\n"); |
803 | return 0; |
804 | } |
805 | |
806 | /* If a match was found, then it begins the starting of a cluster rule |
807 | * if it was already programmed, we need to overwrite these rules |
808 | */ |
809 | for (l = i+1; l < MAX_FILER_IDX; l++) { |
810 | if ((ftp_rqfcr[l] & RQFCR_CLE) && |
811 | !(ftp_rqfcr[l] & RQFCR_AND)) { |
812 | ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT | |
813 | RQFCR_HASHTBL_0 | RQFCR_PID_MASK; |
814 | ftp_rqfpr[l] = FPR_FILER_MASK; |
815 | gfar_write_filer(priv, l, ftp_rqfcr[l], ftp_rqfpr[l]); |
816 | break; |
817 | } |
818 | |
819 | if (!(ftp_rqfcr[l] & RQFCR_CLE) && (ftp_rqfcr[l] & RQFCR_AND)) |
820 | continue; |
821 | else { |
822 | local_rqfpr[j] = ftp_rqfpr[l]; |
823 | local_rqfcr[j] = ftp_rqfcr[l]; |
824 | j--; |
825 | } |
826 | } |
827 | |
828 | priv->cur_filer_idx = l - 1; |
829 | last_rule_idx = l; |
830 | |
831 | /* hash rules */ |
832 | ethflow_to_filer_rules(priv, ethflow); |
833 | |
834 | /* Write back the popped out rules again */ |
835 | for (k = j+1; k < MAX_FILER_IDX; k++) { |
836 | ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k]; |
837 | ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k]; |
838 | gfar_write_filer(priv, priv->cur_filer_idx, |
839 | local_rqfcr[k], local_rqfpr[k]); |
840 | if (!priv->cur_filer_idx) |
841 | break; |
842 | priv->cur_filer_idx = priv->cur_filer_idx - 1; |
843 | } |
844 | |
845 | return 1; |
846 | } |
847 | |
848 | static int gfar_set_hash_opts(struct gfar_private *priv, struct ethtool_rxnfc *cmd) |
849 | { |
850 | u64 class; |
851 | |
852 | if (!gfar_ethflow_to_class(cmd->flow_type, &class)) |
853 | return -EINVAL; |
854 | |
855 | if (class < CLASS_CODE_USER_PROG1 || |
856 | class > CLASS_CODE_SCTP_IPV6) |
857 | return -EINVAL; |
858 | |
859 | /* write the filer rules here */ |
860 | if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type)) |
861 | return -1; |
862 | |
863 | return 0; |
864 | } |
865 | |
866 | static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) |
867 | { |
868 | struct gfar_private *priv = netdev_priv(dev); |
869 | int ret = 0; |
870 | |
871 | switch(cmd->cmd) { |
872 | case ETHTOOL_SRXFH: |
873 | ret = gfar_set_hash_opts(priv, cmd); |
874 | break; |
875 | default: |
876 | ret = -EINVAL; |
877 | } |
878 | |
879 | return ret; |
880 | } |
881 | |
882 | const struct ethtool_ops gfar_ethtool_ops = { |
883 | .get_settings = gfar_gsettings, |
884 | .set_settings = gfar_ssettings, |
885 | .get_drvinfo = gfar_gdrvinfo, |
886 | .get_regs_len = gfar_reglen, |
887 | .get_regs = gfar_get_regs, |
888 | .get_link = ethtool_op_get_link, |
889 | .get_coalesce = gfar_gcoalesce, |
890 | .set_coalesce = gfar_scoalesce, |
891 | .get_ringparam = gfar_gringparam, |
892 | .set_ringparam = gfar_sringparam, |
893 | .get_strings = gfar_gstrings, |
894 | .get_sset_count = gfar_sset_count, |
895 | .get_ethtool_stats = gfar_fill_stats, |
896 | .get_rx_csum = gfar_get_rx_csum, |
897 | .get_tx_csum = gfar_get_tx_csum, |
898 | .set_rx_csum = gfar_set_rx_csum, |
899 | .set_tx_csum = gfar_set_tx_csum, |
900 | .set_sg = ethtool_op_set_sg, |
901 | .get_msglevel = gfar_get_msglevel, |
902 | .set_msglevel = gfar_set_msglevel, |
903 | #ifdef CONFIG_PM |
904 | .get_wol = gfar_get_wol, |
905 | .set_wol = gfar_set_wol, |
906 | #endif |
907 | .set_rxnfc = gfar_set_nfc, |
908 | }; |
909 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9