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 |
a12f801d | 10 | * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com> |
1da177e4 | 11 | * |
a12f801d | 12 | * Copyright 2003-2006, 2008-2009 Freescale Semiconductor, Inc. |
1da177e4 | 13 | * |
6aa20a22 JG |
14 | * This software may be used and distributed according to |
15 | * the terms of the GNU Public License, Version 2, incorporated herein | |
1da177e4 LT |
16 | * by reference. |
17 | */ | |
18 | ||
1da177e4 | 19 | #include <linux/kernel.h> |
1da177e4 LT |
20 | #include <linux/string.h> |
21 | #include <linux/errno.h> | |
1da177e4 LT |
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 | 43 | extern void gfar_start(struct net_device *dev); |
a12f801d | 44 | extern int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, 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 | |
b31a1d8b | 124 | if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) |
0bbaf069 KG |
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); | |
46ceb60c | 139 | struct gfar __iomem *regs = priv->gfargrp[0].regs; |
1da177e4 | 140 | u64 *extra = (u64 *) & priv->extra_stats; |
1da177e4 | 141 | |
b31a1d8b | 142 | if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { |
f4983704 | 143 | u32 __iomem *rmon = (u32 __iomem *) ®s->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 | ||
b9f2c044 | 156 | static int gfar_sset_count(struct net_device *dev, int sset) |
1da177e4 | 157 | { |
1da177e4 | 158 | struct gfar_private *priv = netdev_priv(dev); |
1da177e4 | 159 | |
b9f2c044 JG |
160 | switch (sset) { |
161 | case ETH_SS_STATS: | |
b31a1d8b | 162 | if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) |
b9f2c044 JG |
163 | return GFAR_STATS_LEN; |
164 | else | |
165 | return GFAR_EXTRA_STATS_LEN; | |
166 | default: | |
167 | return -EOPNOTSUPP; | |
168 | } | |
1da177e4 LT |
169 | } |
170 | ||
1da177e4 | 171 | /* Fills in the drvinfo structure with some basic info */ |
0bbaf069 | 172 | static void gfar_gdrvinfo(struct net_device *dev, struct |
1da177e4 LT |
173 | ethtool_drvinfo *drvinfo) |
174 | { | |
175 | strncpy(drvinfo->driver, DRV_NAME, GFAR_INFOSTR_LEN); | |
176 | strncpy(drvinfo->version, gfar_driver_version, GFAR_INFOSTR_LEN); | |
177 | strncpy(drvinfo->fw_version, "N/A", GFAR_INFOSTR_LEN); | |
178 | strncpy(drvinfo->bus_info, "N/A", GFAR_INFOSTR_LEN); | |
1da177e4 LT |
179 | drvinfo->regdump_len = 0; |
180 | drvinfo->eedump_len = 0; | |
181 | } | |
182 | ||
bb40dcbb AF |
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 | ||
1da177e4 | 196 | /* Return the current settings in the ethtool_cmd structure */ |
0bbaf069 | 197 | static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd) |
1da177e4 LT |
198 | { |
199 | struct gfar_private *priv = netdev_priv(dev); | |
bb40dcbb | 200 | struct phy_device *phydev = priv->phydev; |
a12f801d SG |
201 | struct gfar_priv_rx_q *rx_queue = NULL; |
202 | struct gfar_priv_tx_q *tx_queue = NULL; | |
bb40dcbb AF |
203 | |
204 | if (NULL == phydev) | |
205 | return -ENODEV; | |
fba4ed03 SG |
206 | tx_queue = priv->tx_queue[0]; |
207 | rx_queue = priv->rx_queue[0]; | |
6aa20a22 | 208 | |
fba4ed03 SG |
209 | /* etsec-1.7 and older versions have only one txic |
210 | * and rxic regs although they support multiple queues */ | |
a12f801d SG |
211 | cmd->maxtxpkt = get_icft_value(tx_queue->txic); |
212 | cmd->maxrxpkt = get_icft_value(rx_queue->rxic); | |
1da177e4 | 213 | |
bb40dcbb | 214 | return phy_ethtool_gset(phydev, cmd); |
1da177e4 LT |
215 | } |
216 | ||
217 | /* Return the length of the register structure */ | |
0bbaf069 | 218 | static int gfar_reglen(struct net_device *dev) |
1da177e4 LT |
219 | { |
220 | return sizeof (struct gfar); | |
221 | } | |
222 | ||
223 | /* Return a dump of the GFAR register space */ | |
0bbaf069 | 224 | static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *regbuf) |
1da177e4 LT |
225 | { |
226 | int i; | |
227 | struct gfar_private *priv = netdev_priv(dev); | |
46ceb60c | 228 | u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs; |
1da177e4 LT |
229 | u32 *buf = (u32 *) regbuf; |
230 | ||
231 | for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++) | |
cc8c6e37 | 232 | buf[i] = gfar_read(&theregs[i]); |
1da177e4 LT |
233 | } |
234 | ||
1da177e4 LT |
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 */ | |
bb40dcbb AF |
242 | switch (priv->phydev->speed) { |
243 | case SPEED_1000: | |
1da177e4 LT |
244 | count = GFAR_GBIT_TIME; |
245 | break; | |
bb40dcbb | 246 | case SPEED_100: |
1da177e4 LT |
247 | count = GFAR_100_TIME; |
248 | break; | |
bb40dcbb | 249 | case SPEED_10: |
1da177e4 LT |
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 */ | |
bb40dcbb AF |
266 | switch (priv->phydev->speed) { |
267 | case SPEED_1000: | |
1da177e4 LT |
268 | count = GFAR_GBIT_TIME; |
269 | break; | |
bb40dcbb | 270 | case SPEED_100: |
1da177e4 LT |
271 | count = GFAR_100_TIME; |
272 | break; | |
bb40dcbb | 273 | case SPEED_10: |
1da177e4 LT |
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. */ | |
0bbaf069 | 286 | static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
1da177e4 LT |
287 | { |
288 | struct gfar_private *priv = netdev_priv(dev); | |
a12f801d SG |
289 | struct gfar_priv_rx_q *rx_queue = NULL; |
290 | struct gfar_priv_tx_q *tx_queue = NULL; | |
b46a8454 DH |
291 | unsigned long rxtime; |
292 | unsigned long rxcount; | |
293 | unsigned long txtime; | |
294 | unsigned long txcount; | |
6aa20a22 | 295 | |
b31a1d8b | 296 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
0bbaf069 | 297 | return -EOPNOTSUPP; |
1da177e4 | 298 | |
bb40dcbb AF |
299 | if (NULL == priv->phydev) |
300 | return -ENODEV; | |
301 | ||
fba4ed03 SG |
302 | rx_queue = priv->rx_queue[0]; |
303 | tx_queue = priv->tx_queue[0]; | |
a12f801d SG |
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); | |
b46a8454 DH |
309 | cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime); |
310 | cvals->rx_max_coalesced_frames = rxcount; | |
1da177e4 | 311 | |
b46a8454 DH |
312 | cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime); |
313 | cvals->tx_max_coalesced_frames = txcount; | |
1da177e4 LT |
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 | */ | |
0bbaf069 | 351 | static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals) |
1da177e4 LT |
352 | { |
353 | struct gfar_private *priv = netdev_priv(dev); | |
46ceb60c | 354 | int i = 0; |
1da177e4 | 355 | |
b31a1d8b | 356 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
0bbaf069 KG |
357 | return -EOPNOTSUPP; |
358 | ||
1da177e4 | 359 | /* Set up rx coalescing */ |
46ceb60c SG |
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 */ | |
1da177e4 | 363 | if ((cvals->rx_coalesce_usecs == 0) || |
46ceb60c SG |
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 | } | |
1da177e4 | 371 | |
bb40dcbb AF |
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 | ||
46ceb60c SG |
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 | } | |
1da177e4 LT |
393 | |
394 | /* Set up tx coalescing */ | |
395 | if ((cvals->tx_coalesce_usecs == 0) || | |
46ceb60c SG |
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 | } | |
1da177e4 | 403 | |
bb40dcbb AF |
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 | ||
46ceb60c SG |
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 | } | |
1da177e4 | 422 | |
46ceb60c | 423 | gfar_configure_coalescing(priv, 0xFF, 0xFF); |
1da177e4 LT |
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 */ | |
0bbaf069 | 431 | static void gfar_gringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
1da177e4 LT |
432 | { |
433 | struct gfar_private *priv = netdev_priv(dev); | |
a12f801d SG |
434 | struct gfar_priv_tx_q *tx_queue = NULL; |
435 | struct gfar_priv_rx_q *rx_queue = NULL; | |
436 | ||
fba4ed03 SG |
437 | tx_queue = priv->tx_queue[0]; |
438 | rx_queue = priv->rx_queue[0]; | |
1da177e4 LT |
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 | */ | |
a12f801d SG |
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; | |
1da177e4 LT |
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. */ | |
0bbaf069 | 458 | static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rvals) |
1da177e4 | 459 | { |
1da177e4 | 460 | struct gfar_private *priv = netdev_priv(dev); |
fba4ed03 | 461 | int err = 0, i = 0; |
1da177e4 LT |
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 | ||
a12f801d | 481 | |
0bbaf069 KG |
482 | if (dev->flags & IFF_UP) { |
483 | unsigned long flags; | |
1da177e4 | 484 | |
0bbaf069 KG |
485 | /* Halt TX and RX, and process the frames which |
486 | * have already been received */ | |
fba4ed03 SG |
487 | local_irq_save(flags); |
488 | lock_tx_qs(priv); | |
489 | lock_rx_qs(priv); | |
fef6108d | 490 | |
0bbaf069 | 491 | gfar_halt(dev); |
fef6108d | 492 | |
fba4ed03 SG |
493 | unlock_rx_qs(priv); |
494 | unlock_tx_qs(priv); | |
495 | local_irq_restore(flags); | |
1da177e4 | 496 | |
fba4ed03 SG |
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); | |
12dea57b | 500 | |
0bbaf069 KG |
501 | /* Now we take down the rings to rebuild them */ |
502 | stop_gfar(dev); | |
503 | } | |
1da177e4 | 504 | |
0bbaf069 | 505 | /* Change the size */ |
fba4ed03 SG |
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 | } | |
1da177e4 | 511 | |
0bbaf069 | 512 | /* Rebuild the rings with the new size */ |
12dea57b | 513 | if (dev->flags & IFF_UP) { |
0bbaf069 | 514 | err = startup_gfar(dev); |
fba4ed03 | 515 | netif_tx_wake_all_queues(dev); |
12dea57b | 516 | } |
0bbaf069 KG |
517 | return err; |
518 | } | |
1da177e4 | 519 | |
0bbaf069 KG |
520 | static int gfar_set_rx_csum(struct net_device *dev, uint32_t data) |
521 | { | |
522 | struct gfar_private *priv = netdev_priv(dev); | |
d87eb127 | 523 | unsigned long flags; |
fba4ed03 | 524 | int err = 0, i = 0; |
1da177e4 | 525 | |
b31a1d8b | 526 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) |
0bbaf069 KG |
527 | return -EOPNOTSUPP; |
528 | ||
a12f801d | 529 | |
0bbaf069 | 530 | if (dev->flags & IFF_UP) { |
0bbaf069 KG |
531 | /* Halt TX and RX, and process the frames which |
532 | * have already been received */ | |
fba4ed03 SG |
533 | local_irq_save(flags); |
534 | lock_tx_qs(priv); | |
535 | lock_rx_qs(priv); | |
fef6108d | 536 | |
0bbaf069 | 537 | gfar_halt(dev); |
fef6108d | 538 | |
fba4ed03 SG |
539 | unlock_tx_qs(priv); |
540 | unlock_rx_qs(priv); | |
541 | local_irq_save(flags); | |
0bbaf069 | 542 | |
fba4ed03 SG |
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); | |
12dea57b | 546 | |
0bbaf069 | 547 | /* Now we take down the rings to rebuild them */ |
1da177e4 LT |
548 | stop_gfar(dev); |
549 | } | |
550 | ||
d87eb127 | 551 | spin_lock_irqsave(&priv->bflock, flags); |
0bbaf069 | 552 | priv->rx_csum_enable = data; |
d87eb127 | 553 | spin_unlock_irqrestore(&priv->bflock, flags); |
1da177e4 | 554 | |
12dea57b | 555 | if (dev->flags & IFF_UP) { |
1da177e4 | 556 | err = startup_gfar(dev); |
fba4ed03 | 557 | netif_tx_wake_all_queues(dev); |
12dea57b | 558 | } |
1da177e4 LT |
559 | return err; |
560 | } | |
561 | ||
0bbaf069 KG |
562 | static uint32_t gfar_get_rx_csum(struct net_device *dev) |
563 | { | |
564 | struct gfar_private *priv = netdev_priv(dev); | |
565 | ||
b31a1d8b | 566 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) |
0bbaf069 KG |
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 | { | |
0bbaf069 KG |
574 | struct gfar_private *priv = netdev_priv(dev); |
575 | ||
b31a1d8b | 576 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) |
0bbaf069 KG |
577 | return -EOPNOTSUPP; |
578 | ||
12dea57b | 579 | netif_tx_lock_bh(dev); |
0bbaf069 KG |
580 | |
581 | if (data) | |
582 | dev->features |= NETIF_F_IP_CSUM; | |
583 | else | |
584 | dev->features &= ~NETIF_F_IP_CSUM; | |
585 | ||
12dea57b | 586 | netif_tx_unlock_bh(dev); |
0bbaf069 KG |
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 | ||
b31a1d8b | 595 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM)) |
0bbaf069 KG |
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) | |
6aa20a22 | 602 | { |
0bbaf069 KG |
603 | struct gfar_private *priv = netdev_priv(dev); |
604 | return priv->msg_enable; | |
6aa20a22 JG |
605 | } |
606 | ||
0bbaf069 | 607 | static void gfar_set_msglevel(struct net_device *dev, uint32_t data) |
6aa20a22 | 608 | { |
0bbaf069 KG |
609 | struct gfar_private *priv = netdev_priv(dev); |
610 | priv->msg_enable = data; | |
611 | } | |
612 | ||
d87eb127 SW |
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 | ||
b31a1d8b | 618 | if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) { |
d87eb127 SW |
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 | ||
b31a1d8b | 631 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && |
d87eb127 SW |
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; | |
2884e5cc | 640 | device_set_wakeup_enable(&dev->dev, priv->wol_en); |
d87eb127 SW |
641 | spin_unlock_irqrestore(&priv->bflock, flags); |
642 | ||
643 | return 0; | |
644 | } | |
645 | #endif | |
0bbaf069 | 646 | |
7a8b3372 SG |
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 | ||
7282d491 | 882 | const struct ethtool_ops gfar_ethtool_ops = { |
1da177e4 | 883 | .get_settings = gfar_gsettings, |
bb40dcbb | 884 | .set_settings = gfar_ssettings, |
1da177e4 LT |
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, | |
b9f2c044 | 894 | .get_sset_count = gfar_sset_count, |
1da177e4 | 895 | .get_ethtool_stats = gfar_fill_stats, |
0bbaf069 KG |
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, | |
4669bc90 | 900 | .set_sg = ethtool_op_set_sg, |
0bbaf069 KG |
901 | .get_msglevel = gfar_get_msglevel, |
902 | .set_msglevel = gfar_set_msglevel, | |
d87eb127 SW |
903 | #ifdef CONFIG_PM |
904 | .get_wol = gfar_get_wol, | |
905 | .set_wol = gfar_set_wol, | |
906 | #endif | |
7a8b3372 | 907 | .set_rxnfc = gfar_set_nfc, |
1da177e4 | 908 | }; |