Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
3396c782 | 2 | * drivers/net/ethernet/freescale/gianfar_ethtool.c |
1da177e4 LT |
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 | * |
6c43e046 | 12 | * Copyright 2003-2006, 2008-2009, 2011 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 | ||
59deab26 JP |
19 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
20 | ||
1da177e4 | 21 | #include <linux/kernel.h> |
1da177e4 LT |
22 | #include <linux/string.h> |
23 | #include <linux/errno.h> | |
1da177e4 LT |
24 | #include <linux/interrupt.h> |
25 | #include <linux/init.h> | |
26 | #include <linux/delay.h> | |
27 | #include <linux/netdevice.h> | |
28 | #include <linux/etherdevice.h> | |
65a85a8d | 29 | #include <linux/net_tstamp.h> |
1da177e4 LT |
30 | #include <linux/skbuff.h> |
31 | #include <linux/spinlock.h> | |
32 | #include <linux/mm.h> | |
33 | ||
34 | #include <asm/io.h> | |
35 | #include <asm/irq.h> | |
36 | #include <asm/uaccess.h> | |
37 | #include <linux/module.h> | |
1da177e4 LT |
38 | #include <linux/crc32.h> |
39 | #include <asm/types.h> | |
1da177e4 | 40 | #include <linux/ethtool.h> |
bb40dcbb AF |
41 | #include <linux/mii.h> |
42 | #include <linux/phy.h> | |
4aa3a715 | 43 | #include <linux/sort.h> |
380b153c | 44 | #include <linux/if_vlan.h> |
1da177e4 LT |
45 | |
46 | #include "gianfar.h" | |
47 | ||
0bbaf069 | 48 | extern void gfar_start(struct net_device *dev); |
cbfc6071 JC |
49 | extern int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, |
50 | int rx_work_limit); | |
1da177e4 | 51 | |
bb40dcbb AF |
52 | #define GFAR_MAX_COAL_USECS 0xffff |
53 | #define GFAR_MAX_COAL_FRAMES 0xff | |
0bbaf069 | 54 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, |
cbfc6071 | 55 | u64 *buf); |
0bbaf069 | 56 | static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf); |
cbfc6071 JC |
57 | static int gfar_gcoalesce(struct net_device *dev, |
58 | struct ethtool_coalesce *cvals); | |
59 | static int gfar_scoalesce(struct net_device *dev, | |
60 | struct ethtool_coalesce *cvals); | |
61 | static void gfar_gringparam(struct net_device *dev, | |
62 | struct ethtool_ringparam *rvals); | |
63 | static int gfar_sringparam(struct net_device *dev, | |
64 | struct ethtool_ringparam *rvals); | |
65 | static void gfar_gdrvinfo(struct net_device *dev, | |
66 | struct ethtool_drvinfo *drvinfo); | |
1da177e4 | 67 | |
30f7e310 | 68 | static const char stat_gstrings[][ETH_GSTRING_LEN] = { |
1da177e4 LT |
69 | "rx-dropped-by-kernel", |
70 | "rx-large-frame-errors", | |
71 | "rx-short-frame-errors", | |
72 | "rx-non-octet-errors", | |
73 | "rx-crc-errors", | |
74 | "rx-overrun-errors", | |
75 | "rx-busy-errors", | |
76 | "rx-babbling-errors", | |
77 | "rx-truncated-frames", | |
78 | "ethernet-bus-error", | |
79 | "tx-babbling-errors", | |
80 | "tx-underrun-errors", | |
81 | "rx-skb-missing-errors", | |
82 | "tx-timeout-errors", | |
83 | "tx-rx-64-frames", | |
84 | "tx-rx-65-127-frames", | |
85 | "tx-rx-128-255-frames", | |
86 | "tx-rx-256-511-frames", | |
87 | "tx-rx-512-1023-frames", | |
88 | "tx-rx-1024-1518-frames", | |
89 | "tx-rx-1519-1522-good-vlan", | |
90 | "rx-bytes", | |
91 | "rx-packets", | |
92 | "rx-fcs-errors", | |
93 | "receive-multicast-packet", | |
94 | "receive-broadcast-packet", | |
95 | "rx-control-frame-packets", | |
96 | "rx-pause-frame-packets", | |
97 | "rx-unknown-op-code", | |
98 | "rx-alignment-error", | |
99 | "rx-frame-length-error", | |
100 | "rx-code-error", | |
101 | "rx-carrier-sense-error", | |
102 | "rx-undersize-packets", | |
103 | "rx-oversize-packets", | |
104 | "rx-fragmented-frames", | |
105 | "rx-jabber-frames", | |
106 | "rx-dropped-frames", | |
107 | "tx-byte-counter", | |
108 | "tx-packets", | |
109 | "tx-multicast-packets", | |
110 | "tx-broadcast-packets", | |
111 | "tx-pause-control-frames", | |
112 | "tx-deferral-packets", | |
113 | "tx-excessive-deferral-packets", | |
114 | "tx-single-collision-packets", | |
115 | "tx-multiple-collision-packets", | |
116 | "tx-late-collision-packets", | |
117 | "tx-excessive-collision-packets", | |
118 | "tx-total-collision", | |
119 | "reserved", | |
120 | "tx-dropped-frames", | |
121 | "tx-jabber-frames", | |
122 | "tx-fcs-errors", | |
123 | "tx-control-frames", | |
124 | "tx-oversize-frames", | |
125 | "tx-undersize-frames", | |
126 | "tx-fragmented-frames", | |
127 | }; | |
128 | ||
0bbaf069 KG |
129 | /* Fill in a buffer with the strings which correspond to the |
130 | * stats */ | |
131 | static void gfar_gstrings(struct net_device *dev, u32 stringset, u8 * buf) | |
132 | { | |
133 | struct gfar_private *priv = netdev_priv(dev); | |
7f7f5316 | 134 | |
b31a1d8b | 135 | if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) |
0bbaf069 KG |
136 | memcpy(buf, stat_gstrings, GFAR_STATS_LEN * ETH_GSTRING_LEN); |
137 | else | |
138 | memcpy(buf, stat_gstrings, | |
cbfc6071 | 139 | GFAR_EXTRA_STATS_LEN * ETH_GSTRING_LEN); |
0bbaf069 KG |
140 | } |
141 | ||
1da177e4 LT |
142 | /* Fill in an array of 64-bit statistics from various sources. |
143 | * This array will be appended to the end of the ethtool_stats | |
144 | * structure, and returned to user space | |
145 | */ | |
cbfc6071 JC |
146 | static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy, |
147 | u64 *buf) | |
1da177e4 LT |
148 | { |
149 | int i; | |
150 | struct gfar_private *priv = netdev_priv(dev); | |
46ceb60c | 151 | struct gfar __iomem *regs = priv->gfargrp[0].regs; |
1da177e4 | 152 | u64 *extra = (u64 *) & priv->extra_stats; |
1da177e4 | 153 | |
b31a1d8b | 154 | if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { |
f4983704 | 155 | u32 __iomem *rmon = (u32 __iomem *) ®s->rmon; |
0bbaf069 | 156 | struct gfar_stats *stats = (struct gfar_stats *) buf; |
1da177e4 | 157 | |
0bbaf069 | 158 | for (i = 0; i < GFAR_RMON_LEN; i++) |
cc8c6e37 | 159 | stats->rmon[i] = (u64) gfar_read(&rmon[i]); |
1da177e4 | 160 | |
0bbaf069 KG |
161 | for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++) |
162 | stats->extra[i] = extra[i]; | |
163 | } else | |
164 | for (i = 0; i < GFAR_EXTRA_STATS_LEN; i++) | |
165 | buf[i] = extra[i]; | |
1da177e4 LT |
166 | } |
167 | ||
b9f2c044 | 168 | static int gfar_sset_count(struct net_device *dev, int sset) |
1da177e4 | 169 | { |
1da177e4 | 170 | struct gfar_private *priv = netdev_priv(dev); |
1da177e4 | 171 | |
b9f2c044 JG |
172 | switch (sset) { |
173 | case ETH_SS_STATS: | |
b31a1d8b | 174 | if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) |
b9f2c044 JG |
175 | return GFAR_STATS_LEN; |
176 | else | |
177 | return GFAR_EXTRA_STATS_LEN; | |
178 | default: | |
179 | return -EOPNOTSUPP; | |
180 | } | |
1da177e4 LT |
181 | } |
182 | ||
1da177e4 | 183 | /* Fills in the drvinfo structure with some basic info */ |
cbfc6071 JC |
184 | static void gfar_gdrvinfo(struct net_device *dev, |
185 | struct ethtool_drvinfo *drvinfo) | |
1da177e4 LT |
186 | { |
187 | strncpy(drvinfo->driver, DRV_NAME, GFAR_INFOSTR_LEN); | |
188 | strncpy(drvinfo->version, gfar_driver_version, GFAR_INFOSTR_LEN); | |
189 | strncpy(drvinfo->fw_version, "N/A", GFAR_INFOSTR_LEN); | |
190 | strncpy(drvinfo->bus_info, "N/A", GFAR_INFOSTR_LEN); | |
1da177e4 LT |
191 | drvinfo->regdump_len = 0; |
192 | drvinfo->eedump_len = 0; | |
193 | } | |
194 | ||
bb40dcbb AF |
195 | |
196 | static int gfar_ssettings(struct net_device *dev, struct ethtool_cmd *cmd) | |
197 | { | |
198 | struct gfar_private *priv = netdev_priv(dev); | |
199 | struct phy_device *phydev = priv->phydev; | |
200 | ||
201 | if (NULL == phydev) | |
202 | return -ENODEV; | |
203 | ||
204 | return phy_ethtool_sset(phydev, cmd); | |
205 | } | |
206 | ||
207 | ||
1da177e4 | 208 | /* Return the current settings in the ethtool_cmd structure */ |
0bbaf069 | 209 | static int gfar_gsettings(struct net_device *dev, struct ethtool_cmd *cmd) |
1da177e4 LT |
210 | { |
211 | struct gfar_private *priv = netdev_priv(dev); | |
bb40dcbb | 212 | struct phy_device *phydev = priv->phydev; |
a12f801d SG |
213 | struct gfar_priv_rx_q *rx_queue = NULL; |
214 | struct gfar_priv_tx_q *tx_queue = NULL; | |
bb40dcbb AF |
215 | |
216 | if (NULL == phydev) | |
217 | return -ENODEV; | |
fba4ed03 SG |
218 | tx_queue = priv->tx_queue[0]; |
219 | rx_queue = priv->rx_queue[0]; | |
6aa20a22 | 220 | |
fba4ed03 SG |
221 | /* etsec-1.7 and older versions have only one txic |
222 | * and rxic regs although they support multiple queues */ | |
a12f801d SG |
223 | cmd->maxtxpkt = get_icft_value(tx_queue->txic); |
224 | cmd->maxrxpkt = get_icft_value(rx_queue->rxic); | |
1da177e4 | 225 | |
bb40dcbb | 226 | return phy_ethtool_gset(phydev, cmd); |
1da177e4 LT |
227 | } |
228 | ||
229 | /* Return the length of the register structure */ | |
0bbaf069 | 230 | static int gfar_reglen(struct net_device *dev) |
1da177e4 LT |
231 | { |
232 | return sizeof (struct gfar); | |
233 | } | |
234 | ||
235 | /* Return a dump of the GFAR register space */ | |
cbfc6071 JC |
236 | static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, |
237 | void *regbuf) | |
1da177e4 LT |
238 | { |
239 | int i; | |
240 | struct gfar_private *priv = netdev_priv(dev); | |
46ceb60c | 241 | u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp[0].regs; |
1da177e4 LT |
242 | u32 *buf = (u32 *) regbuf; |
243 | ||
244 | for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++) | |
cc8c6e37 | 245 | buf[i] = gfar_read(&theregs[i]); |
1da177e4 LT |
246 | } |
247 | ||
1da177e4 LT |
248 | /* Convert microseconds to ethernet clock ticks, which changes |
249 | * depending on what speed the controller is running at */ | |
cbfc6071 JC |
250 | static unsigned int gfar_usecs2ticks(struct gfar_private *priv, |
251 | unsigned int usecs) | |
1da177e4 LT |
252 | { |
253 | unsigned int count; | |
254 | ||
255 | /* The timer is different, depending on the interface speed */ | |
bb40dcbb AF |
256 | switch (priv->phydev->speed) { |
257 | case SPEED_1000: | |
1da177e4 LT |
258 | count = GFAR_GBIT_TIME; |
259 | break; | |
bb40dcbb | 260 | case SPEED_100: |
1da177e4 LT |
261 | count = GFAR_100_TIME; |
262 | break; | |
bb40dcbb | 263 | case SPEED_10: |
1da177e4 LT |
264 | default: |
265 | count = GFAR_10_TIME; | |
266 | break; | |
267 | } | |
268 | ||
269 | /* Make sure we return a number greater than 0 | |
270 | * if usecs > 0 */ | |
807540ba | 271 | return (usecs * 1000 + count - 1) / count; |
1da177e4 LT |
272 | } |
273 | ||
274 | /* Convert ethernet clock ticks to microseconds */ | |
cbfc6071 JC |
275 | static unsigned int gfar_ticks2usecs(struct gfar_private *priv, |
276 | unsigned int ticks) | |
1da177e4 LT |
277 | { |
278 | unsigned int count; | |
279 | ||
280 | /* The timer is different, depending on the interface speed */ | |
bb40dcbb AF |
281 | switch (priv->phydev->speed) { |
282 | case SPEED_1000: | |
1da177e4 LT |
283 | count = GFAR_GBIT_TIME; |
284 | break; | |
bb40dcbb | 285 | case SPEED_100: |
1da177e4 LT |
286 | count = GFAR_100_TIME; |
287 | break; | |
bb40dcbb | 288 | case SPEED_10: |
1da177e4 LT |
289 | default: |
290 | count = GFAR_10_TIME; | |
291 | break; | |
292 | } | |
293 | ||
294 | /* Make sure we return a number greater than 0 */ | |
295 | /* if ticks is > 0 */ | |
807540ba | 296 | return (ticks * count) / 1000; |
1da177e4 LT |
297 | } |
298 | ||
299 | /* Get the coalescing parameters, and put them in the cvals | |
300 | * structure. */ | |
cbfc6071 JC |
301 | static int gfar_gcoalesce(struct net_device *dev, |
302 | struct ethtool_coalesce *cvals) | |
1da177e4 LT |
303 | { |
304 | struct gfar_private *priv = netdev_priv(dev); | |
a12f801d SG |
305 | struct gfar_priv_rx_q *rx_queue = NULL; |
306 | struct gfar_priv_tx_q *tx_queue = NULL; | |
b46a8454 DH |
307 | unsigned long rxtime; |
308 | unsigned long rxcount; | |
309 | unsigned long txtime; | |
310 | unsigned long txcount; | |
6aa20a22 | 311 | |
b31a1d8b | 312 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
0bbaf069 | 313 | return -EOPNOTSUPP; |
1da177e4 | 314 | |
bb40dcbb AF |
315 | if (NULL == priv->phydev) |
316 | return -ENODEV; | |
317 | ||
fba4ed03 SG |
318 | rx_queue = priv->rx_queue[0]; |
319 | tx_queue = priv->tx_queue[0]; | |
a12f801d SG |
320 | |
321 | rxtime = get_ictt_value(rx_queue->rxic); | |
322 | rxcount = get_icft_value(rx_queue->rxic); | |
323 | txtime = get_ictt_value(tx_queue->txic); | |
324 | txcount = get_icft_value(tx_queue->txic); | |
b46a8454 DH |
325 | cvals->rx_coalesce_usecs = gfar_ticks2usecs(priv, rxtime); |
326 | cvals->rx_max_coalesced_frames = rxcount; | |
1da177e4 | 327 | |
b46a8454 DH |
328 | cvals->tx_coalesce_usecs = gfar_ticks2usecs(priv, txtime); |
329 | cvals->tx_max_coalesced_frames = txcount; | |
1da177e4 LT |
330 | |
331 | cvals->use_adaptive_rx_coalesce = 0; | |
332 | cvals->use_adaptive_tx_coalesce = 0; | |
333 | ||
334 | cvals->pkt_rate_low = 0; | |
335 | cvals->rx_coalesce_usecs_low = 0; | |
336 | cvals->rx_max_coalesced_frames_low = 0; | |
337 | cvals->tx_coalesce_usecs_low = 0; | |
338 | cvals->tx_max_coalesced_frames_low = 0; | |
339 | ||
340 | /* When the packet rate is below pkt_rate_high but above | |
341 | * pkt_rate_low (both measured in packets per second) the | |
342 | * normal {rx,tx}_* coalescing parameters are used. | |
343 | */ | |
344 | ||
345 | /* When the packet rate is (measured in packets per second) | |
346 | * is above pkt_rate_high, the {rx,tx}_*_high parameters are | |
347 | * used. | |
348 | */ | |
349 | cvals->pkt_rate_high = 0; | |
350 | cvals->rx_coalesce_usecs_high = 0; | |
351 | cvals->rx_max_coalesced_frames_high = 0; | |
352 | cvals->tx_coalesce_usecs_high = 0; | |
353 | cvals->tx_max_coalesced_frames_high = 0; | |
354 | ||
355 | /* How often to do adaptive coalescing packet rate sampling, | |
356 | * measured in seconds. Must not be zero. | |
357 | */ | |
358 | cvals->rate_sample_interval = 0; | |
359 | ||
360 | return 0; | |
361 | } | |
362 | ||
363 | /* Change the coalescing values. | |
364 | * Both cvals->*_usecs and cvals->*_frames have to be > 0 | |
365 | * in order for coalescing to be active | |
366 | */ | |
cbfc6071 JC |
367 | static int gfar_scoalesce(struct net_device *dev, |
368 | struct ethtool_coalesce *cvals) | |
1da177e4 LT |
369 | { |
370 | struct gfar_private *priv = netdev_priv(dev); | |
46ceb60c | 371 | int i = 0; |
1da177e4 | 372 | |
b31a1d8b | 373 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_COALESCE)) |
0bbaf069 KG |
374 | return -EOPNOTSUPP; |
375 | ||
1da177e4 | 376 | /* Set up rx coalescing */ |
46ceb60c SG |
377 | /* As of now, we will enable/disable coalescing for all |
378 | * queues together in case of eTSEC2, this will be modified | |
cbfc6071 JC |
379 | * along with the ethtool interface |
380 | */ | |
1da177e4 | 381 | if ((cvals->rx_coalesce_usecs == 0) || |
46ceb60c SG |
382 | (cvals->rx_max_coalesced_frames == 0)) { |
383 | for (i = 0; i < priv->num_rx_queues; i++) | |
384 | priv->rx_queue[i]->rxcoalescing = 0; | |
385 | } else { | |
386 | for (i = 0; i < priv->num_rx_queues; i++) | |
387 | priv->rx_queue[i]->rxcoalescing = 1; | |
388 | } | |
1da177e4 | 389 | |
bb40dcbb AF |
390 | if (NULL == priv->phydev) |
391 | return -ENODEV; | |
392 | ||
393 | /* Check the bounds of the values */ | |
394 | if (cvals->rx_coalesce_usecs > GFAR_MAX_COAL_USECS) { | |
395 | pr_info("Coalescing is limited to %d microseconds\n", | |
59deab26 | 396 | GFAR_MAX_COAL_USECS); |
bb40dcbb AF |
397 | return -EINVAL; |
398 | } | |
399 | ||
400 | if (cvals->rx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { | |
401 | pr_info("Coalescing is limited to %d frames\n", | |
59deab26 | 402 | GFAR_MAX_COAL_FRAMES); |
bb40dcbb AF |
403 | return -EINVAL; |
404 | } | |
405 | ||
46ceb60c SG |
406 | for (i = 0; i < priv->num_rx_queues; i++) { |
407 | priv->rx_queue[i]->rxic = mk_ic_value( | |
408 | cvals->rx_max_coalesced_frames, | |
409 | gfar_usecs2ticks(priv, cvals->rx_coalesce_usecs)); | |
410 | } | |
1da177e4 LT |
411 | |
412 | /* Set up tx coalescing */ | |
413 | if ((cvals->tx_coalesce_usecs == 0) || | |
46ceb60c SG |
414 | (cvals->tx_max_coalesced_frames == 0)) { |
415 | for (i = 0; i < priv->num_tx_queues; i++) | |
416 | priv->tx_queue[i]->txcoalescing = 0; | |
417 | } else { | |
418 | for (i = 0; i < priv->num_tx_queues; i++) | |
419 | priv->tx_queue[i]->txcoalescing = 1; | |
420 | } | |
1da177e4 | 421 | |
bb40dcbb AF |
422 | /* Check the bounds of the values */ |
423 | if (cvals->tx_coalesce_usecs > GFAR_MAX_COAL_USECS) { | |
424 | pr_info("Coalescing is limited to %d microseconds\n", | |
59deab26 | 425 | GFAR_MAX_COAL_USECS); |
bb40dcbb AF |
426 | return -EINVAL; |
427 | } | |
428 | ||
429 | if (cvals->tx_max_coalesced_frames > GFAR_MAX_COAL_FRAMES) { | |
430 | pr_info("Coalescing is limited to %d frames\n", | |
59deab26 | 431 | GFAR_MAX_COAL_FRAMES); |
bb40dcbb AF |
432 | return -EINVAL; |
433 | } | |
434 | ||
46ceb60c SG |
435 | for (i = 0; i < priv->num_tx_queues; i++) { |
436 | priv->tx_queue[i]->txic = mk_ic_value( | |
437 | cvals->tx_max_coalesced_frames, | |
438 | gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs)); | |
439 | } | |
1da177e4 | 440 | |
46ceb60c | 441 | gfar_configure_coalescing(priv, 0xFF, 0xFF); |
1da177e4 LT |
442 | |
443 | return 0; | |
444 | } | |
445 | ||
446 | /* Fills in rvals with the current ring parameters. Currently, | |
447 | * rx, rx_mini, and rx_jumbo rings are the same size, as mini and | |
448 | * jumbo are ignored by the driver */ | |
cbfc6071 JC |
449 | static void gfar_gringparam(struct net_device *dev, |
450 | struct ethtool_ringparam *rvals) | |
1da177e4 LT |
451 | { |
452 | struct gfar_private *priv = netdev_priv(dev); | |
a12f801d SG |
453 | struct gfar_priv_tx_q *tx_queue = NULL; |
454 | struct gfar_priv_rx_q *rx_queue = NULL; | |
455 | ||
fba4ed03 SG |
456 | tx_queue = priv->tx_queue[0]; |
457 | rx_queue = priv->rx_queue[0]; | |
1da177e4 LT |
458 | |
459 | rvals->rx_max_pending = GFAR_RX_MAX_RING_SIZE; | |
460 | rvals->rx_mini_max_pending = GFAR_RX_MAX_RING_SIZE; | |
461 | rvals->rx_jumbo_max_pending = GFAR_RX_MAX_RING_SIZE; | |
462 | rvals->tx_max_pending = GFAR_TX_MAX_RING_SIZE; | |
463 | ||
464 | /* Values changeable by the user. The valid values are | |
465 | * in the range 1 to the "*_max_pending" counterpart above. | |
466 | */ | |
a12f801d SG |
467 | rvals->rx_pending = rx_queue->rx_ring_size; |
468 | rvals->rx_mini_pending = rx_queue->rx_ring_size; | |
469 | rvals->rx_jumbo_pending = rx_queue->rx_ring_size; | |
470 | rvals->tx_pending = tx_queue->tx_ring_size; | |
1da177e4 LT |
471 | } |
472 | ||
473 | /* Change the current ring parameters, stopping the controller if | |
474 | * necessary so that we don't mess things up while we're in | |
475 | * motion. We wait for the ring to be clean before reallocating | |
cbfc6071 JC |
476 | * the rings. |
477 | */ | |
478 | static int gfar_sringparam(struct net_device *dev, | |
479 | struct ethtool_ringparam *rvals) | |
1da177e4 | 480 | { |
1da177e4 | 481 | struct gfar_private *priv = netdev_priv(dev); |
fba4ed03 | 482 | int err = 0, i = 0; |
1da177e4 LT |
483 | |
484 | if (rvals->rx_pending > GFAR_RX_MAX_RING_SIZE) | |
485 | return -EINVAL; | |
486 | ||
487 | if (!is_power_of_2(rvals->rx_pending)) { | |
59deab26 | 488 | netdev_err(dev, "Ring sizes must be a power of 2\n"); |
1da177e4 LT |
489 | return -EINVAL; |
490 | } | |
491 | ||
492 | if (rvals->tx_pending > GFAR_TX_MAX_RING_SIZE) | |
493 | return -EINVAL; | |
494 | ||
495 | if (!is_power_of_2(rvals->tx_pending)) { | |
59deab26 | 496 | netdev_err(dev, "Ring sizes must be a power of 2\n"); |
1da177e4 LT |
497 | return -EINVAL; |
498 | } | |
499 | ||
a12f801d | 500 | |
0bbaf069 KG |
501 | if (dev->flags & IFF_UP) { |
502 | unsigned long flags; | |
1da177e4 | 503 | |
0bbaf069 | 504 | /* Halt TX and RX, and process the frames which |
cbfc6071 JC |
505 | * have already been received |
506 | */ | |
fba4ed03 SG |
507 | local_irq_save(flags); |
508 | lock_tx_qs(priv); | |
509 | lock_rx_qs(priv); | |
fef6108d | 510 | |
0bbaf069 | 511 | gfar_halt(dev); |
fef6108d | 512 | |
fba4ed03 SG |
513 | unlock_rx_qs(priv); |
514 | unlock_tx_qs(priv); | |
515 | local_irq_restore(flags); | |
1da177e4 | 516 | |
fba4ed03 SG |
517 | for (i = 0; i < priv->num_rx_queues; i++) |
518 | gfar_clean_rx_ring(priv->rx_queue[i], | |
cbfc6071 | 519 | priv->rx_queue[i]->rx_ring_size); |
12dea57b | 520 | |
0bbaf069 KG |
521 | /* Now we take down the rings to rebuild them */ |
522 | stop_gfar(dev); | |
523 | } | |
1da177e4 | 524 | |
0bbaf069 | 525 | /* Change the size */ |
fba4ed03 SG |
526 | for (i = 0; i < priv->num_rx_queues; i++) { |
527 | priv->rx_queue[i]->rx_ring_size = rvals->rx_pending; | |
528 | priv->tx_queue[i]->tx_ring_size = rvals->tx_pending; | |
cbfc6071 JC |
529 | priv->tx_queue[i]->num_txbdfree = |
530 | priv->tx_queue[i]->tx_ring_size; | |
fba4ed03 | 531 | } |
1da177e4 | 532 | |
0bbaf069 | 533 | /* Rebuild the rings with the new size */ |
12dea57b | 534 | if (dev->flags & IFF_UP) { |
0bbaf069 | 535 | err = startup_gfar(dev); |
fba4ed03 | 536 | netif_tx_wake_all_queues(dev); |
12dea57b | 537 | } |
0bbaf069 KG |
538 | return err; |
539 | } | |
1da177e4 | 540 | |
c8f44aff | 541 | int gfar_set_features(struct net_device *dev, netdev_features_t features) |
0bbaf069 KG |
542 | { |
543 | struct gfar_private *priv = netdev_priv(dev); | |
d87eb127 | 544 | unsigned long flags; |
fba4ed03 | 545 | int err = 0, i = 0; |
c8f44aff | 546 | netdev_features_t changed = dev->features ^ features; |
1da177e4 | 547 | |
87c288c6 JP |
548 | if (changed & (NETIF_F_HW_VLAN_TX|NETIF_F_HW_VLAN_RX)) |
549 | gfar_vlan_mode(dev, features); | |
550 | ||
8b3afe95 MM |
551 | if (!(changed & NETIF_F_RXCSUM)) |
552 | return 0; | |
a12f801d | 553 | |
0bbaf069 | 554 | if (dev->flags & IFF_UP) { |
0bbaf069 | 555 | /* Halt TX and RX, and process the frames which |
cbfc6071 JC |
556 | * have already been received |
557 | */ | |
fba4ed03 SG |
558 | local_irq_save(flags); |
559 | lock_tx_qs(priv); | |
560 | lock_rx_qs(priv); | |
fef6108d | 561 | |
0bbaf069 | 562 | gfar_halt(dev); |
fef6108d | 563 | |
fba4ed03 SG |
564 | unlock_tx_qs(priv); |
565 | unlock_rx_qs(priv); | |
9756403b | 566 | local_irq_restore(flags); |
0bbaf069 | 567 | |
fba4ed03 SG |
568 | for (i = 0; i < priv->num_rx_queues; i++) |
569 | gfar_clean_rx_ring(priv->rx_queue[i], | |
cbfc6071 | 570 | priv->rx_queue[i]->rx_ring_size); |
12dea57b | 571 | |
0bbaf069 | 572 | /* Now we take down the rings to rebuild them */ |
1da177e4 | 573 | stop_gfar(dev); |
1da177e4 | 574 | |
8b3afe95 | 575 | dev->features = features; |
1da177e4 | 576 | |
1da177e4 | 577 | err = startup_gfar(dev); |
fba4ed03 | 578 | netif_tx_wake_all_queues(dev); |
12dea57b | 579 | } |
1da177e4 LT |
580 | return err; |
581 | } | |
582 | ||
0bbaf069 | 583 | static uint32_t gfar_get_msglevel(struct net_device *dev) |
6aa20a22 | 584 | { |
0bbaf069 | 585 | struct gfar_private *priv = netdev_priv(dev); |
cbfc6071 | 586 | |
0bbaf069 | 587 | return priv->msg_enable; |
6aa20a22 JG |
588 | } |
589 | ||
0bbaf069 | 590 | static void gfar_set_msglevel(struct net_device *dev, uint32_t data) |
6aa20a22 | 591 | { |
0bbaf069 | 592 | struct gfar_private *priv = netdev_priv(dev); |
cbfc6071 | 593 | |
0bbaf069 KG |
594 | priv->msg_enable = data; |
595 | } | |
596 | ||
d87eb127 SW |
597 | #ifdef CONFIG_PM |
598 | static void gfar_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
599 | { | |
600 | struct gfar_private *priv = netdev_priv(dev); | |
601 | ||
b31a1d8b | 602 | if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) { |
d87eb127 SW |
603 | wol->supported = WAKE_MAGIC; |
604 | wol->wolopts = priv->wol_en ? WAKE_MAGIC : 0; | |
605 | } else { | |
606 | wol->supported = wol->wolopts = 0; | |
607 | } | |
608 | } | |
609 | ||
610 | static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
611 | { | |
612 | struct gfar_private *priv = netdev_priv(dev); | |
613 | unsigned long flags; | |
614 | ||
b31a1d8b | 615 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) && |
d87eb127 SW |
616 | wol->wolopts != 0) |
617 | return -EINVAL; | |
618 | ||
619 | if (wol->wolopts & ~WAKE_MAGIC) | |
620 | return -EINVAL; | |
621 | ||
6c4f1994 RW |
622 | device_set_wakeup_enable(&dev->dev, wol->wolopts & WAKE_MAGIC); |
623 | ||
d87eb127 | 624 | spin_lock_irqsave(&priv->bflock, flags); |
6c4f1994 | 625 | priv->wol_en = !!device_may_wakeup(&dev->dev); |
d87eb127 SW |
626 | spin_unlock_irqrestore(&priv->bflock, flags); |
627 | ||
628 | return 0; | |
629 | } | |
630 | #endif | |
0bbaf069 | 631 | |
7a8b3372 SG |
632 | static void ethflow_to_filer_rules (struct gfar_private *priv, u64 ethflow) |
633 | { | |
634 | u32 fcr = 0x0, fpr = FPR_FILER_MASK; | |
635 | ||
636 | if (ethflow & RXH_L2DA) { | |
637 | fcr = RQFCR_PID_DAH |RQFCR_CMP_NOMATCH | | |
cbfc6071 | 638 | RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; |
6c43e046 WJB |
639 | priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; |
640 | priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; | |
7a8b3372 SG |
641 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
642 | priv->cur_filer_idx = priv->cur_filer_idx - 1; | |
643 | ||
644 | fcr = RQFCR_PID_DAL | RQFCR_AND | RQFCR_CMP_NOMATCH | | |
cbfc6071 | 645 | RQFCR_HASH | RQFCR_AND | RQFCR_HASHTBL_0; |
6c43e046 WJB |
646 | priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; |
647 | priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; | |
7a8b3372 SG |
648 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
649 | priv->cur_filer_idx = priv->cur_filer_idx - 1; | |
650 | } | |
651 | ||
652 | if (ethflow & RXH_VLAN) { | |
653 | fcr = RQFCR_PID_VID | RQFCR_CMP_NOMATCH | RQFCR_HASH | | |
cbfc6071 | 654 | RQFCR_AND | RQFCR_HASHTBL_0; |
7a8b3372 | 655 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
6c43e046 WJB |
656 | priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; |
657 | priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; | |
7a8b3372 SG |
658 | priv->cur_filer_idx = priv->cur_filer_idx - 1; |
659 | } | |
660 | ||
661 | if (ethflow & RXH_IP_SRC) { | |
662 | fcr = RQFCR_PID_SIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | | |
cbfc6071 | 663 | RQFCR_AND | RQFCR_HASHTBL_0; |
6c43e046 WJB |
664 | priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; |
665 | priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; | |
7a8b3372 SG |
666 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
667 | priv->cur_filer_idx = priv->cur_filer_idx - 1; | |
668 | } | |
669 | ||
670 | if (ethflow & (RXH_IP_DST)) { | |
671 | fcr = RQFCR_PID_DIA | RQFCR_CMP_NOMATCH | RQFCR_HASH | | |
cbfc6071 | 672 | RQFCR_AND | RQFCR_HASHTBL_0; |
6c43e046 WJB |
673 | priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; |
674 | priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; | |
7a8b3372 SG |
675 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
676 | priv->cur_filer_idx = priv->cur_filer_idx - 1; | |
677 | } | |
678 | ||
679 | if (ethflow & RXH_L3_PROTO) { | |
680 | fcr = RQFCR_PID_L4P | RQFCR_CMP_NOMATCH | RQFCR_HASH | | |
cbfc6071 | 681 | RQFCR_AND | RQFCR_HASHTBL_0; |
6c43e046 WJB |
682 | priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; |
683 | priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; | |
7a8b3372 SG |
684 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
685 | priv->cur_filer_idx = priv->cur_filer_idx - 1; | |
686 | } | |
687 | ||
688 | if (ethflow & RXH_L4_B_0_1) { | |
689 | fcr = RQFCR_PID_SPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | | |
cbfc6071 | 690 | RQFCR_AND | RQFCR_HASHTBL_0; |
6c43e046 WJB |
691 | priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; |
692 | priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; | |
7a8b3372 SG |
693 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
694 | priv->cur_filer_idx = priv->cur_filer_idx - 1; | |
695 | } | |
696 | ||
697 | if (ethflow & RXH_L4_B_2_3) { | |
698 | fcr = RQFCR_PID_DPT | RQFCR_CMP_NOMATCH | RQFCR_HASH | | |
cbfc6071 | 699 | RQFCR_AND | RQFCR_HASHTBL_0; |
6c43e046 WJB |
700 | priv->ftp_rqfpr[priv->cur_filer_idx] = fpr; |
701 | priv->ftp_rqfcr[priv->cur_filer_idx] = fcr; | |
7a8b3372 SG |
702 | gfar_write_filer(priv, priv->cur_filer_idx, fcr, fpr); |
703 | priv->cur_filer_idx = priv->cur_filer_idx - 1; | |
704 | } | |
705 | } | |
706 | ||
cbfc6071 JC |
707 | static int gfar_ethflow_to_filer_table(struct gfar_private *priv, u64 ethflow, |
708 | u64 class) | |
7a8b3372 SG |
709 | { |
710 | unsigned int last_rule_idx = priv->cur_filer_idx; | |
711 | unsigned int cmp_rqfpr; | |
588dc911 WS |
712 | unsigned int *local_rqfpr; |
713 | unsigned int *local_rqfcr; | |
7a8b3372 SG |
714 | int i = 0x0, k = 0x0; |
715 | int j = MAX_FILER_IDX, l = 0x0; | |
588dc911 WS |
716 | int ret = 1; |
717 | ||
718 | local_rqfpr = kmalloc(sizeof(unsigned int) * (MAX_FILER_IDX + 1), | |
cbfc6071 | 719 | GFP_KERNEL); |
588dc911 | 720 | local_rqfcr = kmalloc(sizeof(unsigned int) * (MAX_FILER_IDX + 1), |
cbfc6071 | 721 | GFP_KERNEL); |
588dc911 WS |
722 | if (!local_rqfpr || !local_rqfcr) { |
723 | pr_err("Out of memory\n"); | |
724 | ret = 0; | |
725 | goto err; | |
726 | } | |
7a8b3372 SG |
727 | |
728 | switch (class) { | |
729 | case TCP_V4_FLOW: | |
730 | cmp_rqfpr = RQFPR_IPV4 |RQFPR_TCP; | |
731 | break; | |
732 | case UDP_V4_FLOW: | |
733 | cmp_rqfpr = RQFPR_IPV4 |RQFPR_UDP; | |
734 | break; | |
735 | case TCP_V6_FLOW: | |
736 | cmp_rqfpr = RQFPR_IPV6 |RQFPR_TCP; | |
737 | break; | |
738 | case UDP_V6_FLOW: | |
739 | cmp_rqfpr = RQFPR_IPV6 |RQFPR_UDP; | |
740 | break; | |
7a8b3372 | 741 | default: |
59deab26 | 742 | pr_err("Right now this class is not supported\n"); |
588dc911 WS |
743 | ret = 0; |
744 | goto err; | |
7a8b3372 SG |
745 | } |
746 | ||
747 | for (i = 0; i < MAX_FILER_IDX + 1; i++) { | |
6c43e046 WJB |
748 | local_rqfpr[j] = priv->ftp_rqfpr[i]; |
749 | local_rqfcr[j] = priv->ftp_rqfcr[i]; | |
7a8b3372 | 750 | j--; |
cbfc6071 JC |
751 | if ((priv->ftp_rqfcr[i] == |
752 | (RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND)) && | |
753 | (priv->ftp_rqfpr[i] == cmp_rqfpr)) | |
7a8b3372 SG |
754 | break; |
755 | } | |
756 | ||
757 | if (i == MAX_FILER_IDX + 1) { | |
59deab26 | 758 | pr_err("No parse rule found, can't create hash rules\n"); |
588dc911 WS |
759 | ret = 0; |
760 | goto err; | |
7a8b3372 SG |
761 | } |
762 | ||
763 | /* If a match was found, then it begins the starting of a cluster rule | |
764 | * if it was already programmed, we need to overwrite these rules | |
765 | */ | |
766 | for (l = i+1; l < MAX_FILER_IDX; l++) { | |
6c43e046 | 767 | if ((priv->ftp_rqfcr[l] & RQFCR_CLE) && |
cbfc6071 | 768 | !(priv->ftp_rqfcr[l] & RQFCR_AND)) { |
6c43e046 | 769 | priv->ftp_rqfcr[l] = RQFCR_CLE | RQFCR_CMP_EXACT | |
cbfc6071 | 770 | RQFCR_HASHTBL_0 | RQFCR_PID_MASK; |
6c43e046 WJB |
771 | priv->ftp_rqfpr[l] = FPR_FILER_MASK; |
772 | gfar_write_filer(priv, l, priv->ftp_rqfcr[l], | |
cbfc6071 | 773 | priv->ftp_rqfpr[l]); |
7a8b3372 SG |
774 | break; |
775 | } | |
776 | ||
6c43e046 WJB |
777 | if (!(priv->ftp_rqfcr[l] & RQFCR_CLE) && |
778 | (priv->ftp_rqfcr[l] & RQFCR_AND)) | |
7a8b3372 SG |
779 | continue; |
780 | else { | |
6c43e046 WJB |
781 | local_rqfpr[j] = priv->ftp_rqfpr[l]; |
782 | local_rqfcr[j] = priv->ftp_rqfcr[l]; | |
7a8b3372 SG |
783 | j--; |
784 | } | |
785 | } | |
786 | ||
787 | priv->cur_filer_idx = l - 1; | |
788 | last_rule_idx = l; | |
789 | ||
790 | /* hash rules */ | |
791 | ethflow_to_filer_rules(priv, ethflow); | |
792 | ||
793 | /* Write back the popped out rules again */ | |
794 | for (k = j+1; k < MAX_FILER_IDX; k++) { | |
6c43e046 WJB |
795 | priv->ftp_rqfpr[priv->cur_filer_idx] = local_rqfpr[k]; |
796 | priv->ftp_rqfcr[priv->cur_filer_idx] = local_rqfcr[k]; | |
7a8b3372 | 797 | gfar_write_filer(priv, priv->cur_filer_idx, |
cbfc6071 | 798 | local_rqfcr[k], local_rqfpr[k]); |
7a8b3372 SG |
799 | if (!priv->cur_filer_idx) |
800 | break; | |
801 | priv->cur_filer_idx = priv->cur_filer_idx - 1; | |
802 | } | |
803 | ||
588dc911 WS |
804 | err: |
805 | kfree(local_rqfcr); | |
806 | kfree(local_rqfpr); | |
807 | return ret; | |
7a8b3372 SG |
808 | } |
809 | ||
cbfc6071 JC |
810 | static int gfar_set_hash_opts(struct gfar_private *priv, |
811 | struct ethtool_rxnfc *cmd) | |
7a8b3372 | 812 | { |
7a8b3372 SG |
813 | /* write the filer rules here */ |
814 | if (!gfar_ethflow_to_filer_table(priv, cmd->data, cmd->flow_type)) | |
bde3528f | 815 | return -EINVAL; |
7a8b3372 SG |
816 | |
817 | return 0; | |
818 | } | |
819 | ||
4aa3a715 SP |
820 | static int gfar_check_filer_hardware(struct gfar_private *priv) |
821 | { | |
822 | struct gfar __iomem *regs = NULL; | |
823 | u32 i; | |
824 | ||
825 | regs = priv->gfargrp[0].regs; | |
826 | ||
827 | /* Check if we are in FIFO mode */ | |
828 | i = gfar_read(®s->ecntrl); | |
829 | i &= ECNTRL_FIFM; | |
830 | if (i == ECNTRL_FIFM) { | |
831 | netdev_notice(priv->ndev, "Interface in FIFO mode\n"); | |
832 | i = gfar_read(®s->rctrl); | |
833 | i &= RCTRL_PRSDEP_MASK | RCTRL_PRSFM; | |
834 | if (i == (RCTRL_PRSDEP_MASK | RCTRL_PRSFM)) { | |
835 | netdev_info(priv->ndev, | |
cbfc6071 | 836 | "Receive Queue Filtering enabled\n"); |
4aa3a715 SP |
837 | } else { |
838 | netdev_warn(priv->ndev, | |
cbfc6071 | 839 | "Receive Queue Filtering disabled\n"); |
4aa3a715 SP |
840 | return -EOPNOTSUPP; |
841 | } | |
842 | } | |
843 | /* Or in standard mode */ | |
844 | else { | |
845 | i = gfar_read(®s->rctrl); | |
846 | i &= RCTRL_PRSDEP_MASK; | |
847 | if (i == RCTRL_PRSDEP_MASK) { | |
848 | netdev_info(priv->ndev, | |
cbfc6071 | 849 | "Receive Queue Filtering enabled\n"); |
4aa3a715 SP |
850 | } else { |
851 | netdev_warn(priv->ndev, | |
cbfc6071 | 852 | "Receive Queue Filtering disabled\n"); |
4aa3a715 SP |
853 | return -EOPNOTSUPP; |
854 | } | |
855 | } | |
856 | ||
857 | /* Sets the properties for arbitrary filer rule | |
cbfc6071 JC |
858 | * to the first 4 Layer 4 Bytes |
859 | */ | |
4aa3a715 SP |
860 | regs->rbifx = 0xC0C1C2C3; |
861 | return 0; | |
862 | } | |
863 | ||
864 | static int gfar_comp_asc(const void *a, const void *b) | |
865 | { | |
866 | return memcmp(a, b, 4); | |
867 | } | |
868 | ||
869 | static int gfar_comp_desc(const void *a, const void *b) | |
870 | { | |
871 | return -memcmp(a, b, 4); | |
872 | } | |
873 | ||
874 | static void gfar_swap(void *a, void *b, int size) | |
875 | { | |
876 | u32 *_a = a; | |
877 | u32 *_b = b; | |
878 | ||
879 | swap(_a[0], _b[0]); | |
880 | swap(_a[1], _b[1]); | |
881 | swap(_a[2], _b[2]); | |
882 | swap(_a[3], _b[3]); | |
883 | } | |
884 | ||
885 | /* Write a mask to filer cache */ | |
886 | static void gfar_set_mask(u32 mask, struct filer_table *tab) | |
887 | { | |
888 | tab->fe[tab->index].ctrl = RQFCR_AND | RQFCR_PID_MASK | RQFCR_CMP_EXACT; | |
889 | tab->fe[tab->index].prop = mask; | |
890 | tab->index++; | |
891 | } | |
892 | ||
893 | /* Sets parse bits (e.g. IP or TCP) */ | |
894 | static void gfar_set_parse_bits(u32 value, u32 mask, struct filer_table *tab) | |
895 | { | |
896 | gfar_set_mask(mask, tab); | |
cbfc6071 JC |
897 | tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_PID_PARSE | |
898 | RQFCR_AND; | |
4aa3a715 SP |
899 | tab->fe[tab->index].prop = value; |
900 | tab->index++; | |
901 | } | |
902 | ||
903 | static void gfar_set_general_attribute(u32 value, u32 mask, u32 flag, | |
cbfc6071 | 904 | struct filer_table *tab) |
4aa3a715 SP |
905 | { |
906 | gfar_set_mask(mask, tab); | |
907 | tab->fe[tab->index].ctrl = RQFCR_CMP_EXACT | RQFCR_AND | flag; | |
908 | tab->fe[tab->index].prop = value; | |
909 | tab->index++; | |
910 | } | |
911 | ||
cbfc6071 | 912 | /* For setting a tuple of value and mask of type flag |
4aa3a715 SP |
913 | * Example: |
914 | * IP-Src = 10.0.0.0/255.0.0.0 | |
915 | * value: 0x0A000000 mask: FF000000 flag: RQFPR_IPV4 | |
916 | * | |
917 | * Ethtool gives us a value=0 and mask=~0 for don't care a tuple | |
918 | * For a don't care mask it gives us a 0 | |
919 | * | |
920 | * The check if don't care and the mask adjustment if mask=0 is done for VLAN | |
921 | * and MAC stuff on an upper level (due to missing information on this level). | |
922 | * For these guys we can discard them if they are value=0 and mask=0. | |
923 | * | |
924 | * Further the all masks are one-padded for better hardware efficiency. | |
925 | */ | |
926 | static void gfar_set_attribute(u32 value, u32 mask, u32 flag, | |
cbfc6071 | 927 | struct filer_table *tab) |
4aa3a715 SP |
928 | { |
929 | switch (flag) { | |
380b153c | 930 | /* 3bit */ |
4aa3a715 SP |
931 | case RQFCR_PID_PRI: |
932 | if (!(value | mask)) | |
933 | return; | |
934 | mask |= RQFCR_PID_PRI_MASK; | |
935 | break; | |
936 | /* 8bit */ | |
937 | case RQFCR_PID_L4P: | |
938 | case RQFCR_PID_TOS: | |
939 | if (!~(mask | RQFCR_PID_L4P_MASK)) | |
940 | return; | |
941 | if (!mask) | |
942 | mask = ~0; | |
943 | else | |
944 | mask |= RQFCR_PID_L4P_MASK; | |
945 | break; | |
946 | /* 12bit */ | |
947 | case RQFCR_PID_VID: | |
948 | if (!(value | mask)) | |
949 | return; | |
950 | mask |= RQFCR_PID_VID_MASK; | |
951 | break; | |
952 | /* 16bit */ | |
953 | case RQFCR_PID_DPT: | |
954 | case RQFCR_PID_SPT: | |
955 | case RQFCR_PID_ETY: | |
956 | if (!~(mask | RQFCR_PID_PORT_MASK)) | |
957 | return; | |
958 | if (!mask) | |
959 | mask = ~0; | |
960 | else | |
961 | mask |= RQFCR_PID_PORT_MASK; | |
962 | break; | |
963 | /* 24bit */ | |
964 | case RQFCR_PID_DAH: | |
965 | case RQFCR_PID_DAL: | |
966 | case RQFCR_PID_SAH: | |
967 | case RQFCR_PID_SAL: | |
968 | if (!(value | mask)) | |
969 | return; | |
970 | mask |= RQFCR_PID_MAC_MASK; | |
971 | break; | |
972 | /* for all real 32bit masks */ | |
973 | default: | |
974 | if (!~mask) | |
975 | return; | |
976 | if (!mask) | |
977 | mask = ~0; | |
978 | break; | |
979 | } | |
980 | gfar_set_general_attribute(value, mask, flag, tab); | |
981 | } | |
982 | ||
983 | /* Translates value and mask for UDP, TCP or SCTP */ | |
984 | static void gfar_set_basic_ip(struct ethtool_tcpip4_spec *value, | |
cbfc6071 JC |
985 | struct ethtool_tcpip4_spec *mask, |
986 | struct filer_table *tab) | |
4aa3a715 SP |
987 | { |
988 | gfar_set_attribute(value->ip4src, mask->ip4src, RQFCR_PID_SIA, tab); | |
989 | gfar_set_attribute(value->ip4dst, mask->ip4dst, RQFCR_PID_DIA, tab); | |
990 | gfar_set_attribute(value->pdst, mask->pdst, RQFCR_PID_DPT, tab); | |
991 | gfar_set_attribute(value->psrc, mask->psrc, RQFCR_PID_SPT, tab); | |
992 | gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); | |
993 | } | |
994 | ||
995 | /* Translates value and mask for RAW-IP4 */ | |
996 | static void gfar_set_user_ip(struct ethtool_usrip4_spec *value, | |
cbfc6071 JC |
997 | struct ethtool_usrip4_spec *mask, |
998 | struct filer_table *tab) | |
4aa3a715 SP |
999 | { |
1000 | gfar_set_attribute(value->ip4src, mask->ip4src, RQFCR_PID_SIA, tab); | |
1001 | gfar_set_attribute(value->ip4dst, mask->ip4dst, RQFCR_PID_DIA, tab); | |
1002 | gfar_set_attribute(value->tos, mask->tos, RQFCR_PID_TOS, tab); | |
1003 | gfar_set_attribute(value->proto, mask->proto, RQFCR_PID_L4P, tab); | |
1004 | gfar_set_attribute(value->l4_4_bytes, mask->l4_4_bytes, RQFCR_PID_ARB, | |
cbfc6071 | 1005 | tab); |
4aa3a715 SP |
1006 | |
1007 | } | |
1008 | ||
1009 | /* Translates value and mask for ETHER spec */ | |
1010 | static void gfar_set_ether(struct ethhdr *value, struct ethhdr *mask, | |
cbfc6071 | 1011 | struct filer_table *tab) |
4aa3a715 SP |
1012 | { |
1013 | u32 upper_temp_mask = 0; | |
1014 | u32 lower_temp_mask = 0; | |
cbfc6071 | 1015 | |
4aa3a715 SP |
1016 | /* Source address */ |
1017 | if (!is_broadcast_ether_addr(mask->h_source)) { | |
4aa3a715 SP |
1018 | if (is_zero_ether_addr(mask->h_source)) { |
1019 | upper_temp_mask = 0xFFFFFFFF; | |
1020 | lower_temp_mask = 0xFFFFFFFF; | |
1021 | } else { | |
cbfc6071 JC |
1022 | upper_temp_mask = mask->h_source[0] << 16 | |
1023 | mask->h_source[1] << 8 | | |
1024 | mask->h_source[2]; | |
1025 | lower_temp_mask = mask->h_source[3] << 16 | | |
1026 | mask->h_source[4] << 8 | | |
1027 | mask->h_source[5]; | |
4aa3a715 SP |
1028 | } |
1029 | /* Upper 24bit */ | |
cbfc6071 JC |
1030 | gfar_set_attribute(value->h_source[0] << 16 | |
1031 | value->h_source[1] << 8 | | |
1032 | value->h_source[2], | |
1033 | upper_temp_mask, RQFCR_PID_SAH, tab); | |
4aa3a715 | 1034 | /* And the same for the lower part */ |
cbfc6071 JC |
1035 | gfar_set_attribute(value->h_source[3] << 16 | |
1036 | value->h_source[4] << 8 | | |
1037 | value->h_source[5], | |
1038 | lower_temp_mask, RQFCR_PID_SAL, tab); | |
4aa3a715 SP |
1039 | } |
1040 | /* Destination address */ | |
1041 | if (!is_broadcast_ether_addr(mask->h_dest)) { | |
4aa3a715 | 1042 | /* Special for destination is limited broadcast */ |
cbfc6071 JC |
1043 | if ((is_broadcast_ether_addr(value->h_dest) && |
1044 | is_zero_ether_addr(mask->h_dest))) { | |
4aa3a715 SP |
1045 | gfar_set_parse_bits(RQFPR_EBC, RQFPR_EBC, tab); |
1046 | } else { | |
4aa3a715 SP |
1047 | if (is_zero_ether_addr(mask->h_dest)) { |
1048 | upper_temp_mask = 0xFFFFFFFF; | |
1049 | lower_temp_mask = 0xFFFFFFFF; | |
1050 | } else { | |
cbfc6071 JC |
1051 | upper_temp_mask = mask->h_dest[0] << 16 | |
1052 | mask->h_dest[1] << 8 | | |
1053 | mask->h_dest[2]; | |
1054 | lower_temp_mask = mask->h_dest[3] << 16 | | |
1055 | mask->h_dest[4] << 8 | | |
1056 | mask->h_dest[5]; | |
4aa3a715 SP |
1057 | } |
1058 | ||
1059 | /* Upper 24bit */ | |
cbfc6071 JC |
1060 | gfar_set_attribute(value->h_dest[0] << 16 | |
1061 | value->h_dest[1] << 8 | | |
1062 | value->h_dest[2], | |
1063 | upper_temp_mask, RQFCR_PID_DAH, tab); | |
4aa3a715 | 1064 | /* And the same for the lower part */ |
cbfc6071 JC |
1065 | gfar_set_attribute(value->h_dest[3] << 16 | |
1066 | value->h_dest[4] << 8 | | |
1067 | value->h_dest[5], | |
1068 | lower_temp_mask, RQFCR_PID_DAL, tab); | |
4aa3a715 SP |
1069 | } |
1070 | } | |
1071 | ||
1072 | gfar_set_attribute(value->h_proto, mask->h_proto, RQFCR_PID_ETY, tab); | |
4aa3a715 SP |
1073 | } |
1074 | ||
1075 | /* Convert a rule to binary filter format of gianfar */ | |
1076 | static int gfar_convert_to_filer(struct ethtool_rx_flow_spec *rule, | |
cbfc6071 | 1077 | struct filer_table *tab) |
4aa3a715 SP |
1078 | { |
1079 | u32 vlan = 0, vlan_mask = 0; | |
1080 | u32 id = 0, id_mask = 0; | |
1081 | u32 cfi = 0, cfi_mask = 0; | |
1082 | u32 prio = 0, prio_mask = 0; | |
4aa3a715 SP |
1083 | u32 old_index = tab->index; |
1084 | ||
1085 | /* Check if vlan is wanted */ | |
1086 | if ((rule->flow_type & FLOW_EXT) && (rule->m_ext.vlan_tci != 0xFFFF)) { | |
1087 | if (!rule->m_ext.vlan_tci) | |
1088 | rule->m_ext.vlan_tci = 0xFFFF; | |
1089 | ||
1090 | vlan = RQFPR_VLN; | |
1091 | vlan_mask = RQFPR_VLN; | |
1092 | ||
1093 | /* Separate the fields */ | |
380b153c SP |
1094 | id = rule->h_ext.vlan_tci & VLAN_VID_MASK; |
1095 | id_mask = rule->m_ext.vlan_tci & VLAN_VID_MASK; | |
1096 | cfi = rule->h_ext.vlan_tci & VLAN_CFI_MASK; | |
1097 | cfi_mask = rule->m_ext.vlan_tci & VLAN_CFI_MASK; | |
cbfc6071 JC |
1098 | prio = (rule->h_ext.vlan_tci & VLAN_PRIO_MASK) >> |
1099 | VLAN_PRIO_SHIFT; | |
1100 | prio_mask = (rule->m_ext.vlan_tci & VLAN_PRIO_MASK) >> | |
1101 | VLAN_PRIO_SHIFT; | |
380b153c SP |
1102 | |
1103 | if (cfi == VLAN_TAG_PRESENT && cfi_mask == VLAN_TAG_PRESENT) { | |
4aa3a715 SP |
1104 | vlan |= RQFPR_CFI; |
1105 | vlan_mask |= RQFPR_CFI; | |
cbfc6071 JC |
1106 | } else if (cfi != VLAN_TAG_PRESENT && |
1107 | cfi_mask == VLAN_TAG_PRESENT) { | |
4aa3a715 SP |
1108 | vlan_mask |= RQFPR_CFI; |
1109 | } | |
1110 | } | |
1111 | ||
1112 | switch (rule->flow_type & ~FLOW_EXT) { | |
1113 | case TCP_V4_FLOW: | |
1114 | gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_TCP | vlan, | |
cbfc6071 | 1115 | RQFPR_IPV4 | RQFPR_TCP | vlan_mask, tab); |
4aa3a715 | 1116 | gfar_set_basic_ip(&rule->h_u.tcp_ip4_spec, |
cbfc6071 | 1117 | &rule->m_u.tcp_ip4_spec, tab); |
4aa3a715 SP |
1118 | break; |
1119 | case UDP_V4_FLOW: | |
1120 | gfar_set_parse_bits(RQFPR_IPV4 | RQFPR_UDP | vlan, | |
cbfc6071 | 1121 | RQFPR_IPV4 | RQFPR_UDP | vlan_mask, tab); |
4aa3a715 | 1122 | gfar_set_basic_ip(&rule->h_u.udp_ip4_spec, |
cbfc6071 | 1123 | &rule->m_u.udp_ip4_spec, tab); |
4aa3a715 SP |
1124 | break; |
1125 | case SCTP_V4_FLOW: | |
1126 | gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, | |
cbfc6071 | 1127 | tab); |
4aa3a715 | 1128 | gfar_set_attribute(132, 0, RQFCR_PID_L4P, tab); |
cbfc6071 JC |
1129 | gfar_set_basic_ip((struct ethtool_tcpip4_spec *)&rule->h_u, |
1130 | (struct ethtool_tcpip4_spec *)&rule->m_u, | |
1131 | tab); | |
4aa3a715 SP |
1132 | break; |
1133 | case IP_USER_FLOW: | |
1134 | gfar_set_parse_bits(RQFPR_IPV4 | vlan, RQFPR_IPV4 | vlan_mask, | |
cbfc6071 | 1135 | tab); |
4aa3a715 | 1136 | gfar_set_user_ip((struct ethtool_usrip4_spec *) &rule->h_u, |
cbfc6071 JC |
1137 | (struct ethtool_usrip4_spec *) &rule->m_u, |
1138 | tab); | |
4aa3a715 SP |
1139 | break; |
1140 | case ETHER_FLOW: | |
1141 | if (vlan) | |
1142 | gfar_set_parse_bits(vlan, vlan_mask, tab); | |
1143 | gfar_set_ether((struct ethhdr *) &rule->h_u, | |
cbfc6071 | 1144 | (struct ethhdr *) &rule->m_u, tab); |
4aa3a715 SP |
1145 | break; |
1146 | default: | |
1147 | return -1; | |
1148 | } | |
1149 | ||
1150 | /* Set the vlan attributes in the end */ | |
1151 | if (vlan) { | |
1152 | gfar_set_attribute(id, id_mask, RQFCR_PID_VID, tab); | |
1153 | gfar_set_attribute(prio, prio_mask, RQFCR_PID_PRI, tab); | |
1154 | } | |
1155 | ||
1156 | /* If there has been nothing written till now, it must be a default */ | |
1157 | if (tab->index == old_index) { | |
1158 | gfar_set_mask(0xFFFFFFFF, tab); | |
1159 | tab->fe[tab->index].ctrl = 0x20; | |
1160 | tab->fe[tab->index].prop = 0x0; | |
1161 | tab->index++; | |
1162 | } | |
1163 | ||
1164 | /* Remove last AND */ | |
1165 | tab->fe[tab->index - 1].ctrl &= (~RQFCR_AND); | |
1166 | ||
1167 | /* Specify which queue to use or to drop */ | |
1168 | if (rule->ring_cookie == RX_CLS_FLOW_DISC) | |
1169 | tab->fe[tab->index - 1].ctrl |= RQFCR_RJE; | |
1170 | else | |
1171 | tab->fe[tab->index - 1].ctrl |= (rule->ring_cookie << 10); | |
1172 | ||
1173 | /* Only big enough entries can be clustered */ | |
1174 | if (tab->index > (old_index + 2)) { | |
1175 | tab->fe[old_index + 1].ctrl |= RQFCR_CLE; | |
1176 | tab->fe[tab->index - 1].ctrl |= RQFCR_CLE; | |
1177 | } | |
1178 | ||
cbfc6071 JC |
1179 | /* In rare cases the cache can be full while there is |
1180 | * free space in hw | |
1181 | */ | |
4aa3a715 SP |
1182 | if (tab->index > MAX_FILER_CACHE_IDX - 1) |
1183 | return -EBUSY; | |
1184 | ||
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | /* Copy size filer entries */ | |
1189 | static void gfar_copy_filer_entries(struct gfar_filer_entry dst[0], | |
cbfc6071 | 1190 | struct gfar_filer_entry src[0], s32 size) |
4aa3a715 SP |
1191 | { |
1192 | while (size > 0) { | |
1193 | size--; | |
1194 | dst[size].ctrl = src[size].ctrl; | |
1195 | dst[size].prop = src[size].prop; | |
1196 | } | |
1197 | } | |
1198 | ||
1199 | /* Delete the contents of the filer-table between start and end | |
cbfc6071 JC |
1200 | * and collapse them |
1201 | */ | |
4aa3a715 SP |
1202 | static int gfar_trim_filer_entries(u32 begin, u32 end, struct filer_table *tab) |
1203 | { | |
1204 | int length; | |
cbfc6071 | 1205 | |
4aa3a715 SP |
1206 | if (end > MAX_FILER_CACHE_IDX || end < begin) |
1207 | return -EINVAL; | |
1208 | ||
1209 | end++; | |
1210 | length = end - begin; | |
1211 | ||
1212 | /* Copy */ | |
1213 | while (end < tab->index) { | |
1214 | tab->fe[begin].ctrl = tab->fe[end].ctrl; | |
1215 | tab->fe[begin++].prop = tab->fe[end++].prop; | |
1216 | ||
1217 | } | |
1218 | /* Fill up with don't cares */ | |
1219 | while (begin < tab->index) { | |
1220 | tab->fe[begin].ctrl = 0x60; | |
1221 | tab->fe[begin].prop = 0xFFFFFFFF; | |
1222 | begin++; | |
1223 | } | |
1224 | ||
1225 | tab->index -= length; | |
1226 | return 0; | |
1227 | } | |
1228 | ||
1229 | /* Make space on the wanted location */ | |
1230 | static int gfar_expand_filer_entries(u32 begin, u32 length, | |
cbfc6071 | 1231 | struct filer_table *tab) |
4aa3a715 | 1232 | { |
cbfc6071 JC |
1233 | if (length == 0 || length + tab->index > MAX_FILER_CACHE_IDX || |
1234 | begin > MAX_FILER_CACHE_IDX) | |
4aa3a715 SP |
1235 | return -EINVAL; |
1236 | ||
1237 | gfar_copy_filer_entries(&(tab->fe[begin + length]), &(tab->fe[begin]), | |
cbfc6071 | 1238 | tab->index - length + 1); |
4aa3a715 SP |
1239 | |
1240 | tab->index += length; | |
1241 | return 0; | |
1242 | } | |
1243 | ||
1244 | static int gfar_get_next_cluster_start(int start, struct filer_table *tab) | |
1245 | { | |
cbfc6071 JC |
1246 | for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1); |
1247 | start++) { | |
1248 | if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) == | |
1249 | (RQFCR_AND | RQFCR_CLE)) | |
4aa3a715 SP |
1250 | return start; |
1251 | } | |
1252 | return -1; | |
1253 | } | |
1254 | ||
1255 | static int gfar_get_next_cluster_end(int start, struct filer_table *tab) | |
1256 | { | |
cbfc6071 JC |
1257 | for (; (start < tab->index) && (start < MAX_FILER_CACHE_IDX - 1); |
1258 | start++) { | |
1259 | if ((tab->fe[start].ctrl & (RQFCR_AND | RQFCR_CLE)) == | |
1260 | (RQFCR_CLE)) | |
4aa3a715 SP |
1261 | return start; |
1262 | } | |
1263 | return -1; | |
1264 | } | |
1265 | ||
cbfc6071 | 1266 | /* Uses hardwares clustering option to reduce |
4aa3a715 SP |
1267 | * the number of filer table entries |
1268 | */ | |
1269 | static void gfar_cluster_filer(struct filer_table *tab) | |
1270 | { | |
1271 | s32 i = -1, j, iend, jend; | |
1272 | ||
1273 | while ((i = gfar_get_next_cluster_start(++i, tab)) != -1) { | |
1274 | j = i; | |
1275 | while ((j = gfar_get_next_cluster_start(++j, tab)) != -1) { | |
cbfc6071 | 1276 | /* The cluster entries self and the previous one |
4aa3a715 SP |
1277 | * (a mask) must be identical! |
1278 | */ | |
1279 | if (tab->fe[i].ctrl != tab->fe[j].ctrl) | |
1280 | break; | |
1281 | if (tab->fe[i].prop != tab->fe[j].prop) | |
1282 | break; | |
1283 | if (tab->fe[i - 1].ctrl != tab->fe[j - 1].ctrl) | |
1284 | break; | |
1285 | if (tab->fe[i - 1].prop != tab->fe[j - 1].prop) | |
1286 | break; | |
1287 | iend = gfar_get_next_cluster_end(i, tab); | |
1288 | jend = gfar_get_next_cluster_end(j, tab); | |
1289 | if (jend == -1 || iend == -1) | |
1290 | break; | |
cbfc6071 JC |
1291 | |
1292 | /* First we make some free space, where our cluster | |
4aa3a715 SP |
1293 | * element should be. Then we copy it there and finally |
1294 | * delete in from its old location. | |
1295 | */ | |
cbfc6071 JC |
1296 | if (gfar_expand_filer_entries(iend, (jend - j), tab) == |
1297 | -EINVAL) | |
4aa3a715 SP |
1298 | break; |
1299 | ||
1300 | gfar_copy_filer_entries(&(tab->fe[iend + 1]), | |
cbfc6071 | 1301 | &(tab->fe[jend + 1]), jend - j); |
4aa3a715 SP |
1302 | |
1303 | if (gfar_trim_filer_entries(jend - 1, | |
cbfc6071 JC |
1304 | jend + (jend - j), |
1305 | tab) == -EINVAL) | |
4aa3a715 SP |
1306 | return; |
1307 | ||
1308 | /* Mask out cluster bit */ | |
1309 | tab->fe[iend].ctrl &= ~(RQFCR_CLE); | |
1310 | } | |
1311 | } | |
1312 | } | |
1313 | ||
380b153c SP |
1314 | /* Swaps the masked bits of a1<>a2 and b1<>b2 */ |
1315 | static void gfar_swap_bits(struct gfar_filer_entry *a1, | |
cbfc6071 JC |
1316 | struct gfar_filer_entry *a2, |
1317 | struct gfar_filer_entry *b1, | |
1318 | struct gfar_filer_entry *b2, u32 mask) | |
4aa3a715 SP |
1319 | { |
1320 | u32 temp[4]; | |
380b153c SP |
1321 | temp[0] = a1->ctrl & mask; |
1322 | temp[1] = a2->ctrl & mask; | |
1323 | temp[2] = b1->ctrl & mask; | |
1324 | temp[3] = b2->ctrl & mask; | |
4aa3a715 | 1325 | |
380b153c SP |
1326 | a1->ctrl &= ~mask; |
1327 | a2->ctrl &= ~mask; | |
1328 | b1->ctrl &= ~mask; | |
1329 | b2->ctrl &= ~mask; | |
4aa3a715 SP |
1330 | |
1331 | a1->ctrl |= temp[1]; | |
1332 | a2->ctrl |= temp[0]; | |
1333 | b1->ctrl |= temp[3]; | |
1334 | b2->ctrl |= temp[2]; | |
1335 | } | |
1336 | ||
cbfc6071 | 1337 | /* Generate a list consisting of masks values with their start and |
4aa3a715 SP |
1338 | * end of validity and block as indicator for parts belonging |
1339 | * together (glued by ANDs) in mask_table | |
1340 | */ | |
1341 | static u32 gfar_generate_mask_table(struct gfar_mask_entry *mask_table, | |
cbfc6071 | 1342 | struct filer_table *tab) |
4aa3a715 SP |
1343 | { |
1344 | u32 i, and_index = 0, block_index = 1; | |
1345 | ||
1346 | for (i = 0; i < tab->index; i++) { | |
1347 | ||
1348 | /* LSByte of control = 0 sets a mask */ | |
1349 | if (!(tab->fe[i].ctrl & 0xF)) { | |
1350 | mask_table[and_index].mask = tab->fe[i].prop; | |
1351 | mask_table[and_index].start = i; | |
1352 | mask_table[and_index].block = block_index; | |
1353 | if (and_index >= 1) | |
1354 | mask_table[and_index - 1].end = i - 1; | |
1355 | and_index++; | |
1356 | } | |
380b153c | 1357 | /* cluster starts and ends will be separated because they should |
cbfc6071 JC |
1358 | * hold their position |
1359 | */ | |
4aa3a715 SP |
1360 | if (tab->fe[i].ctrl & RQFCR_CLE) |
1361 | block_index++; | |
1362 | /* A not set AND indicates the end of a depended block */ | |
1363 | if (!(tab->fe[i].ctrl & RQFCR_AND)) | |
1364 | block_index++; | |
4aa3a715 SP |
1365 | } |
1366 | ||
1367 | mask_table[and_index - 1].end = i - 1; | |
1368 | ||
1369 | return and_index; | |
1370 | } | |
1371 | ||
cbfc6071 | 1372 | /* Sorts the entries of mask_table by the values of the masks. |
4aa3a715 SP |
1373 | * Important: The 0xFF80 flags of the first and last entry of a |
1374 | * block must hold their position (which queue, CLusterEnable, ReJEct, | |
1375 | * AND) | |
1376 | */ | |
1377 | static void gfar_sort_mask_table(struct gfar_mask_entry *mask_table, | |
cbfc6071 | 1378 | struct filer_table *temp_table, u32 and_index) |
4aa3a715 SP |
1379 | { |
1380 | /* Pointer to compare function (_asc or _desc) */ | |
1381 | int (*gfar_comp)(const void *, const void *); | |
1382 | ||
1383 | u32 i, size = 0, start = 0, prev = 1; | |
1384 | u32 old_first, old_last, new_first, new_last; | |
1385 | ||
1386 | gfar_comp = &gfar_comp_desc; | |
1387 | ||
1388 | for (i = 0; i < and_index; i++) { | |
4aa3a715 SP |
1389 | if (prev != mask_table[i].block) { |
1390 | old_first = mask_table[start].start + 1; | |
1391 | old_last = mask_table[i - 1].end; | |
1392 | sort(mask_table + start, size, | |
cbfc6071 JC |
1393 | sizeof(struct gfar_mask_entry), |
1394 | gfar_comp, &gfar_swap); | |
4aa3a715 SP |
1395 | |
1396 | /* Toggle order for every block. This makes the | |
cbfc6071 JC |
1397 | * thing more efficient! |
1398 | */ | |
4aa3a715 SP |
1399 | if (gfar_comp == gfar_comp_desc) |
1400 | gfar_comp = &gfar_comp_asc; | |
1401 | else | |
1402 | gfar_comp = &gfar_comp_desc; | |
1403 | ||
1404 | new_first = mask_table[start].start + 1; | |
1405 | new_last = mask_table[i - 1].end; | |
1406 | ||
380b153c | 1407 | gfar_swap_bits(&temp_table->fe[new_first], |
cbfc6071 JC |
1408 | &temp_table->fe[old_first], |
1409 | &temp_table->fe[new_last], | |
1410 | &temp_table->fe[old_last], | |
1411 | RQFCR_QUEUE | RQFCR_CLE | | |
1412 | RQFCR_RJE | RQFCR_AND); | |
4aa3a715 SP |
1413 | |
1414 | start = i; | |
1415 | size = 0; | |
1416 | } | |
1417 | size++; | |
1418 | prev = mask_table[i].block; | |
1419 | } | |
4aa3a715 SP |
1420 | } |
1421 | ||
cbfc6071 | 1422 | /* Reduces the number of masks needed in the filer table to save entries |
4aa3a715 SP |
1423 | * This is done by sorting the masks of a depended block. A depended block is |
1424 | * identified by gluing ANDs or CLE. The sorting order toggles after every | |
1425 | * block. Of course entries in scope of a mask must change their location with | |
1426 | * it. | |
1427 | */ | |
1428 | static int gfar_optimize_filer_masks(struct filer_table *tab) | |
1429 | { | |
1430 | struct filer_table *temp_table; | |
1431 | struct gfar_mask_entry *mask_table; | |
1432 | ||
1433 | u32 and_index = 0, previous_mask = 0, i = 0, j = 0, size = 0; | |
1434 | s32 ret = 0; | |
1435 | ||
1436 | /* We need a copy of the filer table because | |
cbfc6071 JC |
1437 | * we want to change its order |
1438 | */ | |
b8ffdbd0 | 1439 | temp_table = kmemdup(tab, sizeof(*temp_table), GFP_KERNEL); |
4aa3a715 SP |
1440 | if (temp_table == NULL) |
1441 | return -ENOMEM; | |
4aa3a715 SP |
1442 | |
1443 | mask_table = kcalloc(MAX_FILER_CACHE_IDX / 2 + 1, | |
cbfc6071 | 1444 | sizeof(struct gfar_mask_entry), GFP_KERNEL); |
4aa3a715 SP |
1445 | |
1446 | if (mask_table == NULL) { | |
1447 | ret = -ENOMEM; | |
1448 | goto end; | |
1449 | } | |
1450 | ||
1451 | and_index = gfar_generate_mask_table(mask_table, tab); | |
1452 | ||
1453 | gfar_sort_mask_table(mask_table, temp_table, and_index); | |
1454 | ||
1455 | /* Now we can copy the data from our duplicated filer table to | |
cbfc6071 JC |
1456 | * the real one in the order the mask table says |
1457 | */ | |
4aa3a715 SP |
1458 | for (i = 0; i < and_index; i++) { |
1459 | size = mask_table[i].end - mask_table[i].start + 1; | |
1460 | gfar_copy_filer_entries(&(tab->fe[j]), | |
1461 | &(temp_table->fe[mask_table[i].start]), size); | |
1462 | j += size; | |
1463 | } | |
1464 | ||
1465 | /* And finally we just have to check for duplicated masks and drop the | |
cbfc6071 JC |
1466 | * second ones |
1467 | */ | |
4aa3a715 SP |
1468 | for (i = 0; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) { |
1469 | if (tab->fe[i].ctrl == 0x80) { | |
1470 | previous_mask = i++; | |
1471 | break; | |
1472 | } | |
1473 | } | |
1474 | for (; i < tab->index && i < MAX_FILER_CACHE_IDX; i++) { | |
1475 | if (tab->fe[i].ctrl == 0x80) { | |
1476 | if (tab->fe[i].prop == tab->fe[previous_mask].prop) { | |
1477 | /* Two identical ones found! | |
cbfc6071 JC |
1478 | * So drop the second one! |
1479 | */ | |
4aa3a715 SP |
1480 | gfar_trim_filer_entries(i, i, tab); |
1481 | } else | |
1482 | /* Not identical! */ | |
1483 | previous_mask = i; | |
1484 | } | |
1485 | } | |
1486 | ||
1487 | kfree(mask_table); | |
1488 | end: kfree(temp_table); | |
1489 | return ret; | |
1490 | } | |
1491 | ||
1492 | /* Write the bit-pattern from software's buffer to hardware registers */ | |
1493 | static int gfar_write_filer_table(struct gfar_private *priv, | |
cbfc6071 | 1494 | struct filer_table *tab) |
4aa3a715 SP |
1495 | { |
1496 | u32 i = 0; | |
1497 | if (tab->index > MAX_FILER_IDX - 1) | |
1498 | return -EBUSY; | |
1499 | ||
1500 | /* Avoid inconsistent filer table to be processed */ | |
1501 | lock_rx_qs(priv); | |
1502 | ||
1503 | /* Fill regular entries */ | |
cbfc6071 JC |
1504 | for (; i < MAX_FILER_IDX - 1 && (tab->fe[i].ctrl | tab->fe[i].ctrl); |
1505 | i++) | |
4aa3a715 SP |
1506 | gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop); |
1507 | /* Fill the rest with fall-troughs */ | |
1508 | for (; i < MAX_FILER_IDX - 1; i++) | |
1509 | gfar_write_filer(priv, i, 0x60, 0xFFFFFFFF); | |
1510 | /* Last entry must be default accept | |
cbfc6071 JC |
1511 | * because that's what people expect |
1512 | */ | |
4aa3a715 SP |
1513 | gfar_write_filer(priv, i, 0x20, 0x0); |
1514 | ||
1515 | unlock_rx_qs(priv); | |
1516 | ||
1517 | return 0; | |
1518 | } | |
1519 | ||
1520 | static int gfar_check_capability(struct ethtool_rx_flow_spec *flow, | |
cbfc6071 | 1521 | struct gfar_private *priv) |
4aa3a715 SP |
1522 | { |
1523 | ||
1524 | if (flow->flow_type & FLOW_EXT) { | |
1525 | if (~flow->m_ext.data[0] || ~flow->m_ext.data[1]) | |
1526 | netdev_warn(priv->ndev, | |
cbfc6071 | 1527 | "User-specific data not supported!\n"); |
4aa3a715 SP |
1528 | if (~flow->m_ext.vlan_etype) |
1529 | netdev_warn(priv->ndev, | |
cbfc6071 | 1530 | "VLAN-etype not supported!\n"); |
4aa3a715 SP |
1531 | } |
1532 | if (flow->flow_type == IP_USER_FLOW) | |
1533 | if (flow->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4) | |
1534 | netdev_warn(priv->ndev, | |
cbfc6071 | 1535 | "IP-Version differing from IPv4 not supported!\n"); |
4aa3a715 SP |
1536 | |
1537 | return 0; | |
1538 | } | |
1539 | ||
1540 | static int gfar_process_filer_changes(struct gfar_private *priv) | |
1541 | { | |
1542 | struct ethtool_flow_spec_container *j; | |
1543 | struct filer_table *tab; | |
1544 | s32 i = 0; | |
1545 | s32 ret = 0; | |
1546 | ||
1547 | /* So index is set to zero, too! */ | |
1548 | tab = kzalloc(sizeof(*tab), GFP_KERNEL); | |
1549 | if (tab == NULL) | |
1550 | return -ENOMEM; | |
1551 | ||
1552 | /* Now convert the existing filer data from flow_spec into | |
cbfc6071 JC |
1553 | * filer tables binary format |
1554 | */ | |
4aa3a715 SP |
1555 | list_for_each_entry(j, &priv->rx_list.list, list) { |
1556 | ret = gfar_convert_to_filer(&j->fs, tab); | |
1557 | if (ret == -EBUSY) { | |
cbfc6071 JC |
1558 | netdev_err(priv->ndev, |
1559 | "Rule not added: No free space!\n"); | |
4aa3a715 SP |
1560 | goto end; |
1561 | } | |
1562 | if (ret == -1) { | |
cbfc6071 JC |
1563 | netdev_err(priv->ndev, |
1564 | "Rule not added: Unsupported Flow-type!\n"); | |
4aa3a715 SP |
1565 | goto end; |
1566 | } | |
1567 | } | |
1568 | ||
1569 | i = tab->index; | |
1570 | ||
1571 | /* Optimizations to save entries */ | |
1572 | gfar_cluster_filer(tab); | |
1573 | gfar_optimize_filer_masks(tab); | |
1574 | ||
1575 | pr_debug("\n\tSummary:\n" | |
cbfc6071 JC |
1576 | "\tData on hardware: %d\n" |
1577 | "\tCompression rate: %d%%\n", | |
1578 | tab->index, 100 - (100 * tab->index) / i); | |
4aa3a715 SP |
1579 | |
1580 | /* Write everything to hardware */ | |
1581 | ret = gfar_write_filer_table(priv, tab); | |
1582 | if (ret == -EBUSY) { | |
1583 | netdev_err(priv->ndev, "Rule not added: No free space!\n"); | |
1584 | goto end; | |
1585 | } | |
1586 | ||
cbfc6071 JC |
1587 | end: |
1588 | kfree(tab); | |
4aa3a715 SP |
1589 | return ret; |
1590 | } | |
1591 | ||
1592 | static void gfar_invert_masks(struct ethtool_rx_flow_spec *flow) | |
1593 | { | |
1594 | u32 i = 0; | |
1595 | ||
1596 | for (i = 0; i < sizeof(flow->m_u); i++) | |
1597 | flow->m_u.hdata[i] ^= 0xFF; | |
1598 | ||
1599 | flow->m_ext.vlan_etype ^= 0xFFFF; | |
1600 | flow->m_ext.vlan_tci ^= 0xFFFF; | |
1601 | flow->m_ext.data[0] ^= ~0; | |
1602 | flow->m_ext.data[1] ^= ~0; | |
1603 | } | |
1604 | ||
1605 | static int gfar_add_cls(struct gfar_private *priv, | |
cbfc6071 | 1606 | struct ethtool_rx_flow_spec *flow) |
4aa3a715 SP |
1607 | { |
1608 | struct ethtool_flow_spec_container *temp, *comp; | |
1609 | int ret = 0; | |
1610 | ||
1611 | temp = kmalloc(sizeof(*temp), GFP_KERNEL); | |
1612 | if (temp == NULL) | |
1613 | return -ENOMEM; | |
1614 | memcpy(&temp->fs, flow, sizeof(temp->fs)); | |
1615 | ||
1616 | gfar_invert_masks(&temp->fs); | |
1617 | ret = gfar_check_capability(&temp->fs, priv); | |
1618 | if (ret) | |
1619 | goto clean_mem; | |
1620 | /* Link in the new element at the right @location */ | |
1621 | if (list_empty(&priv->rx_list.list)) { | |
1622 | ret = gfar_check_filer_hardware(priv); | |
1623 | if (ret != 0) | |
1624 | goto clean_mem; | |
1625 | list_add(&temp->list, &priv->rx_list.list); | |
1626 | goto process; | |
1627 | } else { | |
4aa3a715 SP |
1628 | list_for_each_entry(comp, &priv->rx_list.list, list) { |
1629 | if (comp->fs.location > flow->location) { | |
1630 | list_add_tail(&temp->list, &comp->list); | |
1631 | goto process; | |
1632 | } | |
1633 | if (comp->fs.location == flow->location) { | |
1634 | netdev_err(priv->ndev, | |
cbfc6071 JC |
1635 | "Rule not added: ID %d not free!\n", |
1636 | flow->location); | |
4aa3a715 SP |
1637 | ret = -EBUSY; |
1638 | goto clean_mem; | |
1639 | } | |
1640 | } | |
1641 | list_add_tail(&temp->list, &priv->rx_list.list); | |
1642 | } | |
1643 | ||
1644 | process: | |
1645 | ret = gfar_process_filer_changes(priv); | |
1646 | if (ret) | |
1647 | goto clean_list; | |
1648 | priv->rx_list.count++; | |
1649 | return ret; | |
1650 | ||
1651 | clean_list: | |
1652 | list_del(&temp->list); | |
1653 | clean_mem: | |
1654 | kfree(temp); | |
1655 | return ret; | |
1656 | } | |
1657 | ||
1658 | static int gfar_del_cls(struct gfar_private *priv, u32 loc) | |
1659 | { | |
1660 | struct ethtool_flow_spec_container *comp; | |
1661 | u32 ret = -EINVAL; | |
1662 | ||
1663 | if (list_empty(&priv->rx_list.list)) | |
1664 | return ret; | |
1665 | ||
1666 | list_for_each_entry(comp, &priv->rx_list.list, list) { | |
1667 | if (comp->fs.location == loc) { | |
1668 | list_del(&comp->list); | |
1669 | kfree(comp); | |
1670 | priv->rx_list.count--; | |
1671 | gfar_process_filer_changes(priv); | |
1672 | ret = 0; | |
1673 | break; | |
1674 | } | |
1675 | } | |
1676 | ||
1677 | return ret; | |
4aa3a715 SP |
1678 | } |
1679 | ||
1680 | static int gfar_get_cls(struct gfar_private *priv, struct ethtool_rxnfc *cmd) | |
1681 | { | |
1682 | struct ethtool_flow_spec_container *comp; | |
1683 | u32 ret = -EINVAL; | |
1684 | ||
1685 | list_for_each_entry(comp, &priv->rx_list.list, list) { | |
1686 | if (comp->fs.location == cmd->fs.location) { | |
1687 | memcpy(&cmd->fs, &comp->fs, sizeof(cmd->fs)); | |
1688 | gfar_invert_masks(&cmd->fs); | |
1689 | ret = 0; | |
1690 | break; | |
1691 | } | |
1692 | } | |
1693 | ||
1694 | return ret; | |
1695 | } | |
1696 | ||
1697 | static int gfar_get_cls_all(struct gfar_private *priv, | |
cbfc6071 | 1698 | struct ethtool_rxnfc *cmd, u32 *rule_locs) |
4aa3a715 SP |
1699 | { |
1700 | struct ethtool_flow_spec_container *comp; | |
1701 | u32 i = 0; | |
1702 | ||
1703 | list_for_each_entry(comp, &priv->rx_list.list, list) { | |
710778ff BH |
1704 | if (i == cmd->rule_cnt) |
1705 | return -EMSGSIZE; | |
1706 | rule_locs[i] = comp->fs.location; | |
1707 | i++; | |
4aa3a715 SP |
1708 | } |
1709 | ||
1710 | cmd->data = MAX_FILER_IDX; | |
473e64ee | 1711 | cmd->rule_cnt = i; |
4aa3a715 SP |
1712 | |
1713 | return 0; | |
1714 | } | |
1715 | ||
7a8b3372 SG |
1716 | static int gfar_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) |
1717 | { | |
1718 | struct gfar_private *priv = netdev_priv(dev); | |
1719 | int ret = 0; | |
1720 | ||
4aa3a715 SP |
1721 | mutex_lock(&priv->rx_queue_access); |
1722 | ||
1723 | switch (cmd->cmd) { | |
7a8b3372 SG |
1724 | case ETHTOOL_SRXFH: |
1725 | ret = gfar_set_hash_opts(priv, cmd); | |
1726 | break; | |
4aa3a715 | 1727 | case ETHTOOL_SRXCLSRLINS: |
3a73e49c BH |
1728 | if ((cmd->fs.ring_cookie != RX_CLS_FLOW_DISC && |
1729 | cmd->fs.ring_cookie >= priv->num_rx_queues) || | |
1730 | cmd->fs.location >= MAX_FILER_IDX) { | |
4aa3a715 SP |
1731 | ret = -EINVAL; |
1732 | break; | |
1733 | } | |
1734 | ret = gfar_add_cls(priv, &cmd->fs); | |
1735 | break; | |
1736 | case ETHTOOL_SRXCLSRLDEL: | |
1737 | ret = gfar_del_cls(priv, cmd->fs.location); | |
1738 | break; | |
7a8b3372 SG |
1739 | default: |
1740 | ret = -EINVAL; | |
1741 | } | |
1742 | ||
4aa3a715 SP |
1743 | mutex_unlock(&priv->rx_queue_access); |
1744 | ||
1745 | return ret; | |
1746 | } | |
1747 | ||
1748 | static int gfar_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, | |
cbfc6071 | 1749 | u32 *rule_locs) |
4aa3a715 SP |
1750 | { |
1751 | struct gfar_private *priv = netdev_priv(dev); | |
1752 | int ret = 0; | |
1753 | ||
1754 | switch (cmd->cmd) { | |
1755 | case ETHTOOL_GRXRINGS: | |
1756 | cmd->data = priv->num_rx_queues; | |
1757 | break; | |
1758 | case ETHTOOL_GRXCLSRLCNT: | |
1759 | cmd->rule_cnt = priv->rx_list.count; | |
1760 | break; | |
1761 | case ETHTOOL_GRXCLSRULE: | |
1762 | ret = gfar_get_cls(priv, cmd); | |
1763 | break; | |
1764 | case ETHTOOL_GRXCLSRLALL: | |
815c7db5 | 1765 | ret = gfar_get_cls_all(priv, cmd, rule_locs); |
4aa3a715 SP |
1766 | break; |
1767 | default: | |
1768 | ret = -EINVAL; | |
1769 | break; | |
1770 | } | |
1771 | ||
7a8b3372 SG |
1772 | return ret; |
1773 | } | |
1774 | ||
66636287 | 1775 | int gfar_phc_index = -1; |
28889b7e | 1776 | EXPORT_SYMBOL(gfar_phc_index); |
66636287 RC |
1777 | |
1778 | static int gfar_get_ts_info(struct net_device *dev, | |
1779 | struct ethtool_ts_info *info) | |
1780 | { | |
1781 | struct gfar_private *priv = netdev_priv(dev); | |
1782 | ||
1783 | if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) { | |
cbfc6071 JC |
1784 | info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | |
1785 | SOF_TIMESTAMPING_SOFTWARE; | |
66636287 RC |
1786 | info->phc_index = -1; |
1787 | return 0; | |
1788 | } | |
cbfc6071 JC |
1789 | info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE | |
1790 | SOF_TIMESTAMPING_RX_HARDWARE | | |
1791 | SOF_TIMESTAMPING_RAW_HARDWARE; | |
66636287 | 1792 | info->phc_index = gfar_phc_index; |
cbfc6071 JC |
1793 | info->tx_types = (1 << HWTSTAMP_TX_OFF) | |
1794 | (1 << HWTSTAMP_TX_ON); | |
1795 | info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | | |
1796 | (1 << HWTSTAMP_FILTER_ALL); | |
66636287 RC |
1797 | return 0; |
1798 | } | |
1799 | ||
7282d491 | 1800 | const struct ethtool_ops gfar_ethtool_ops = { |
1da177e4 | 1801 | .get_settings = gfar_gsettings, |
bb40dcbb | 1802 | .set_settings = gfar_ssettings, |
1da177e4 LT |
1803 | .get_drvinfo = gfar_gdrvinfo, |
1804 | .get_regs_len = gfar_reglen, | |
1805 | .get_regs = gfar_get_regs, | |
1806 | .get_link = ethtool_op_get_link, | |
1807 | .get_coalesce = gfar_gcoalesce, | |
1808 | .set_coalesce = gfar_scoalesce, | |
1809 | .get_ringparam = gfar_gringparam, | |
1810 | .set_ringparam = gfar_sringparam, | |
1811 | .get_strings = gfar_gstrings, | |
b9f2c044 | 1812 | .get_sset_count = gfar_sset_count, |
1da177e4 | 1813 | .get_ethtool_stats = gfar_fill_stats, |
0bbaf069 KG |
1814 | .get_msglevel = gfar_get_msglevel, |
1815 | .set_msglevel = gfar_set_msglevel, | |
d87eb127 SW |
1816 | #ifdef CONFIG_PM |
1817 | .get_wol = gfar_get_wol, | |
1818 | .set_wol = gfar_set_wol, | |
1819 | #endif | |
7a8b3372 | 1820 | .set_rxnfc = gfar_set_nfc, |
4aa3a715 | 1821 | .get_rxnfc = gfar_get_nfc, |
66636287 | 1822 | .get_ts_info = gfar_get_ts_info, |
1da177e4 | 1823 | }; |