Commit | Line | Data |
---|---|---|
c5aa9e3b LT |
1 | /* |
2 | * AMD 10Gb Ethernet driver | |
3 | * | |
4 | * This file is available to you under your choice of the following two | |
5 | * licenses: | |
6 | * | |
7 | * License 1: GPLv2 | |
8 | * | |
b4eee84f | 9 | * Copyright (c) 2014-2016 Advanced Micro Devices, Inc. |
c5aa9e3b LT |
10 | * |
11 | * This file is free software; you may copy, redistribute and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation, either version 2 of the License, or (at | |
14 | * your option) any later version. | |
15 | * | |
16 | * This file is distributed in the hope that it will be useful, but | |
17 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | * General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
23 | * | |
24 | * This file incorporates work covered by the following copyright and | |
25 | * permission notice: | |
26 | * The Synopsys DWC ETHER XGMAC Software Driver and documentation | |
27 | * (hereinafter "Software") is an unsupported proprietary work of Synopsys, | |
28 | * Inc. unless otherwise expressly agreed to in writing between Synopsys | |
29 | * and you. | |
30 | * | |
31 | * The Software IS NOT an item of Licensed Software or Licensed Product | |
32 | * under any End User Software License Agreement or Agreement for Licensed | |
33 | * Product with Synopsys or any supplement thereto. Permission is hereby | |
34 | * granted, free of charge, to any person obtaining a copy of this software | |
35 | * annotated with this license and the Software, to deal in the Software | |
36 | * without restriction, including without limitation the rights to use, | |
37 | * copy, modify, merge, publish, distribute, sublicense, and/or sell copies | |
38 | * of the Software, and to permit persons to whom the Software is furnished | |
39 | * to do so, subject to the following conditions: | |
40 | * | |
41 | * The above copyright notice and this permission notice shall be included | |
42 | * in all copies or substantial portions of the Software. | |
43 | * | |
44 | * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" | |
45 | * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
46 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | |
47 | * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS | |
48 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
49 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
50 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
51 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
52 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
53 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
54 | * THE POSSIBILITY OF SUCH DAMAGE. | |
55 | * | |
56 | * | |
57 | * License 2: Modified BSD | |
58 | * | |
b4eee84f | 59 | * Copyright (c) 2014-2016 Advanced Micro Devices, Inc. |
c5aa9e3b LT |
60 | * All rights reserved. |
61 | * | |
62 | * Redistribution and use in source and binary forms, with or without | |
63 | * modification, are permitted provided that the following conditions are met: | |
64 | * * Redistributions of source code must retain the above copyright | |
65 | * notice, this list of conditions and the following disclaimer. | |
66 | * * Redistributions in binary form must reproduce the above copyright | |
67 | * notice, this list of conditions and the following disclaimer in the | |
68 | * documentation and/or other materials provided with the distribution. | |
69 | * * Neither the name of Advanced Micro Devices, Inc. nor the | |
70 | * names of its contributors may be used to endorse or promote products | |
71 | * derived from this software without specific prior written permission. | |
72 | * | |
73 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
74 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
75 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
76 | * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY | |
77 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
78 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
79 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
80 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
81 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
82 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
83 | * | |
84 | * This file incorporates work covered by the following copyright and | |
85 | * permission notice: | |
86 | * The Synopsys DWC ETHER XGMAC Software Driver and documentation | |
87 | * (hereinafter "Software") is an unsupported proprietary work of Synopsys, | |
88 | * Inc. unless otherwise expressly agreed to in writing between Synopsys | |
89 | * and you. | |
90 | * | |
91 | * The Software IS NOT an item of Licensed Software or Licensed Product | |
92 | * under any End User Software License Agreement or Agreement for Licensed | |
93 | * Product with Synopsys or any supplement thereto. Permission is hereby | |
94 | * granted, free of charge, to any person obtaining a copy of this software | |
95 | * annotated with this license and the Software, to deal in the Software | |
96 | * without restriction, including without limitation the rights to use, | |
97 | * copy, modify, merge, publish, distribute, sublicense, and/or sell copies | |
98 | * of the Software, and to permit persons to whom the Software is furnished | |
99 | * to do so, subject to the following conditions: | |
100 | * | |
101 | * The above copyright notice and this permission notice shall be included | |
102 | * in all copies or substantial portions of the Software. | |
103 | * | |
104 | * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" | |
105 | * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
106 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | |
107 | * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS | |
108 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
109 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
110 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
111 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
112 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
113 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
114 | * THE POSSIBILITY OF SUCH DAMAGE. | |
115 | */ | |
116 | ||
117 | #include <linux/phy.h> | |
c3152d47 | 118 | #include <linux/mdio.h> |
c5aa9e3b | 119 | #include <linux/clk.h> |
801c62d9 | 120 | #include <linux/bitrev.h> |
b85e4d89 | 121 | #include <linux/crc32.h> |
5d258b48 | 122 | #include <linux/crc32poly.h> |
c5aa9e3b LT |
123 | |
124 | #include "xgbe.h" | |
125 | #include "xgbe-common.h" | |
126 | ||
43e0dcf7 LT |
127 | static inline unsigned int xgbe_get_max_frame(struct xgbe_prv_data *pdata) |
128 | { | |
129 | return pdata->netdev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; | |
130 | } | |
131 | ||
c5aa9e3b LT |
132 | static unsigned int xgbe_usec_to_riwt(struct xgbe_prv_data *pdata, |
133 | unsigned int usec) | |
134 | { | |
135 | unsigned long rate; | |
136 | unsigned int ret; | |
137 | ||
138 | DBGPR("-->xgbe_usec_to_riwt\n"); | |
139 | ||
82a19035 | 140 | rate = pdata->sysclk_rate; |
c5aa9e3b LT |
141 | |
142 | /* | |
143 | * Convert the input usec value to the watchdog timer value. Each | |
144 | * watchdog timer value is equivalent to 256 clock cycles. | |
145 | * Calculate the required value as: | |
146 | * ( usec * ( system_clock_mhz / 10^6 ) / 256 | |
147 | */ | |
148 | ret = (usec * (rate / 1000000)) / 256; | |
149 | ||
150 | DBGPR("<--xgbe_usec_to_riwt\n"); | |
151 | ||
152 | return ret; | |
153 | } | |
154 | ||
155 | static unsigned int xgbe_riwt_to_usec(struct xgbe_prv_data *pdata, | |
156 | unsigned int riwt) | |
157 | { | |
158 | unsigned long rate; | |
159 | unsigned int ret; | |
160 | ||
161 | DBGPR("-->xgbe_riwt_to_usec\n"); | |
162 | ||
82a19035 | 163 | rate = pdata->sysclk_rate; |
c5aa9e3b LT |
164 | |
165 | /* | |
166 | * Convert the input watchdog timer value to the usec value. Each | |
167 | * watchdog timer value is equivalent to 256 clock cycles. | |
168 | * Calculate the required value as: | |
169 | * ( riwt * 256 ) / ( system_clock_mhz / 10^6 ) | |
170 | */ | |
171 | ret = (riwt * 256) / (rate / 1000000); | |
172 | ||
173 | DBGPR("<--xgbe_riwt_to_usec\n"); | |
174 | ||
175 | return ret; | |
176 | } | |
177 | ||
7e1e6b86 | 178 | static int xgbe_config_pbl_val(struct xgbe_prv_data *pdata) |
c5aa9e3b | 179 | { |
7e1e6b86 | 180 | unsigned int pblx8, pbl; |
c5aa9e3b LT |
181 | unsigned int i; |
182 | ||
7e1e6b86 LT |
183 | pblx8 = DMA_PBL_X8_DISABLE; |
184 | pbl = pdata->pbl; | |
c5aa9e3b | 185 | |
7e1e6b86 LT |
186 | if (pdata->pbl > 32) { |
187 | pblx8 = DMA_PBL_X8_ENABLE; | |
188 | pbl >>= 3; | |
c5aa9e3b LT |
189 | } |
190 | ||
18f9f0ac | 191 | for (i = 0; i < pdata->channel_count; i++) { |
7e1e6b86 LT |
192 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_CR, PBLX8, |
193 | pblx8); | |
194 | ||
195 | if (pdata->channel[i]->tx_ring) | |
196 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_TCR, | |
197 | PBL, pbl); | |
c5aa9e3b | 198 | |
7e1e6b86 LT |
199 | if (pdata->channel[i]->rx_ring) |
200 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_RCR, | |
201 | PBL, pbl); | |
c5aa9e3b LT |
202 | } |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
207 | static int xgbe_config_osp_mode(struct xgbe_prv_data *pdata) | |
208 | { | |
c5aa9e3b LT |
209 | unsigned int i; |
210 | ||
18f9f0ac LT |
211 | for (i = 0; i < pdata->channel_count; i++) { |
212 | if (!pdata->channel[i]->tx_ring) | |
c5aa9e3b LT |
213 | break; |
214 | ||
18f9f0ac | 215 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_TCR, OSP, |
c5aa9e3b LT |
216 | pdata->tx_osp_mode); |
217 | } | |
218 | ||
219 | return 0; | |
220 | } | |
221 | ||
222 | static int xgbe_config_rsf_mode(struct xgbe_prv_data *pdata, unsigned int val) | |
223 | { | |
224 | unsigned int i; | |
225 | ||
853eb16b | 226 | for (i = 0; i < pdata->rx_q_count; i++) |
c5aa9e3b LT |
227 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, RSF, val); |
228 | ||
229 | return 0; | |
230 | } | |
231 | ||
232 | static int xgbe_config_tsf_mode(struct xgbe_prv_data *pdata, unsigned int val) | |
233 | { | |
234 | unsigned int i; | |
235 | ||
853eb16b | 236 | for (i = 0; i < pdata->tx_q_count; i++) |
c5aa9e3b LT |
237 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TSF, val); |
238 | ||
239 | return 0; | |
240 | } | |
241 | ||
242 | static int xgbe_config_rx_threshold(struct xgbe_prv_data *pdata, | |
243 | unsigned int val) | |
244 | { | |
245 | unsigned int i; | |
246 | ||
853eb16b | 247 | for (i = 0; i < pdata->rx_q_count; i++) |
c5aa9e3b LT |
248 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, RTC, val); |
249 | ||
250 | return 0; | |
251 | } | |
252 | ||
253 | static int xgbe_config_tx_threshold(struct xgbe_prv_data *pdata, | |
254 | unsigned int val) | |
255 | { | |
256 | unsigned int i; | |
257 | ||
853eb16b | 258 | for (i = 0; i < pdata->tx_q_count; i++) |
c5aa9e3b LT |
259 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TTC, val); |
260 | ||
261 | return 0; | |
262 | } | |
263 | ||
264 | static int xgbe_config_rx_coalesce(struct xgbe_prv_data *pdata) | |
265 | { | |
c5aa9e3b LT |
266 | unsigned int i; |
267 | ||
18f9f0ac LT |
268 | for (i = 0; i < pdata->channel_count; i++) { |
269 | if (!pdata->channel[i]->rx_ring) | |
c5aa9e3b LT |
270 | break; |
271 | ||
18f9f0ac | 272 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_RIWT, RWT, |
c5aa9e3b LT |
273 | pdata->rx_riwt); |
274 | } | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
279 | static int xgbe_config_tx_coalesce(struct xgbe_prv_data *pdata) | |
280 | { | |
281 | return 0; | |
282 | } | |
283 | ||
284 | static void xgbe_config_rx_buffer_size(struct xgbe_prv_data *pdata) | |
285 | { | |
c5aa9e3b LT |
286 | unsigned int i; |
287 | ||
18f9f0ac LT |
288 | for (i = 0; i < pdata->channel_count; i++) { |
289 | if (!pdata->channel[i]->rx_ring) | |
c5aa9e3b LT |
290 | break; |
291 | ||
18f9f0ac | 292 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_RCR, RBSZ, |
c5aa9e3b LT |
293 | pdata->rx_buf_size); |
294 | } | |
295 | } | |
296 | ||
297 | static void xgbe_config_tso_mode(struct xgbe_prv_data *pdata) | |
298 | { | |
c5aa9e3b LT |
299 | unsigned int i; |
300 | ||
18f9f0ac LT |
301 | for (i = 0; i < pdata->channel_count; i++) { |
302 | if (!pdata->channel[i]->tx_ring) | |
c5aa9e3b LT |
303 | break; |
304 | ||
18f9f0ac | 305 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_TCR, TSE, 1); |
c5aa9e3b LT |
306 | } |
307 | } | |
308 | ||
174fd259 LT |
309 | static void xgbe_config_sph_mode(struct xgbe_prv_data *pdata) |
310 | { | |
174fd259 LT |
311 | unsigned int i; |
312 | ||
18f9f0ac LT |
313 | for (i = 0; i < pdata->channel_count; i++) { |
314 | if (!pdata->channel[i]->rx_ring) | |
174fd259 LT |
315 | break; |
316 | ||
18f9f0ac | 317 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_CR, SPH, 1); |
174fd259 LT |
318 | } |
319 | ||
320 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, HDSMS, XGBE_SPH_HDSMS_SIZE); | |
321 | } | |
322 | ||
5b9dfe29 LT |
323 | static int xgbe_write_rss_reg(struct xgbe_prv_data *pdata, unsigned int type, |
324 | unsigned int index, unsigned int val) | |
325 | { | |
326 | unsigned int wait; | |
327 | int ret = 0; | |
328 | ||
329 | mutex_lock(&pdata->rss_mutex); | |
330 | ||
331 | if (XGMAC_IOREAD_BITS(pdata, MAC_RSSAR, OB)) { | |
332 | ret = -EBUSY; | |
333 | goto unlock; | |
334 | } | |
335 | ||
336 | XGMAC_IOWRITE(pdata, MAC_RSSDR, val); | |
337 | ||
338 | XGMAC_IOWRITE_BITS(pdata, MAC_RSSAR, RSSIA, index); | |
339 | XGMAC_IOWRITE_BITS(pdata, MAC_RSSAR, ADDRT, type); | |
340 | XGMAC_IOWRITE_BITS(pdata, MAC_RSSAR, CT, 0); | |
341 | XGMAC_IOWRITE_BITS(pdata, MAC_RSSAR, OB, 1); | |
342 | ||
343 | wait = 1000; | |
344 | while (wait--) { | |
345 | if (!XGMAC_IOREAD_BITS(pdata, MAC_RSSAR, OB)) | |
346 | goto unlock; | |
347 | ||
348 | usleep_range(1000, 1500); | |
349 | } | |
350 | ||
351 | ret = -EBUSY; | |
352 | ||
353 | unlock: | |
354 | mutex_unlock(&pdata->rss_mutex); | |
355 | ||
356 | return ret; | |
357 | } | |
358 | ||
359 | static int xgbe_write_rss_hash_key(struct xgbe_prv_data *pdata) | |
360 | { | |
361 | unsigned int key_regs = sizeof(pdata->rss_key) / sizeof(u32); | |
362 | unsigned int *key = (unsigned int *)&pdata->rss_key; | |
363 | int ret; | |
364 | ||
365 | while (key_regs--) { | |
366 | ret = xgbe_write_rss_reg(pdata, XGBE_RSS_HASH_KEY_TYPE, | |
367 | key_regs, *key++); | |
368 | if (ret) | |
369 | return ret; | |
370 | } | |
371 | ||
372 | return 0; | |
373 | } | |
374 | ||
375 | static int xgbe_write_rss_lookup_table(struct xgbe_prv_data *pdata) | |
376 | { | |
377 | unsigned int i; | |
378 | int ret; | |
379 | ||
380 | for (i = 0; i < ARRAY_SIZE(pdata->rss_table); i++) { | |
381 | ret = xgbe_write_rss_reg(pdata, | |
382 | XGBE_RSS_LOOKUP_TABLE_TYPE, i, | |
383 | pdata->rss_table[i]); | |
384 | if (ret) | |
385 | return ret; | |
386 | } | |
387 | ||
388 | return 0; | |
389 | } | |
390 | ||
f6ac8628 LT |
391 | static int xgbe_set_rss_hash_key(struct xgbe_prv_data *pdata, const u8 *key) |
392 | { | |
393 | memcpy(pdata->rss_key, key, sizeof(pdata->rss_key)); | |
394 | ||
395 | return xgbe_write_rss_hash_key(pdata); | |
396 | } | |
397 | ||
398 | static int xgbe_set_rss_lookup_table(struct xgbe_prv_data *pdata, | |
399 | const u32 *table) | |
400 | { | |
401 | unsigned int i; | |
402 | ||
403 | for (i = 0; i < ARRAY_SIZE(pdata->rss_table); i++) | |
404 | XGMAC_SET_BITS(pdata->rss_table[i], MAC_RSSDR, DMCH, table[i]); | |
405 | ||
406 | return xgbe_write_rss_lookup_table(pdata); | |
407 | } | |
408 | ||
5b9dfe29 LT |
409 | static int xgbe_enable_rss(struct xgbe_prv_data *pdata) |
410 | { | |
411 | int ret; | |
412 | ||
413 | if (!pdata->hw_feat.rss) | |
414 | return -EOPNOTSUPP; | |
415 | ||
416 | /* Program the hash key */ | |
417 | ret = xgbe_write_rss_hash_key(pdata); | |
418 | if (ret) | |
419 | return ret; | |
420 | ||
421 | /* Program the lookup table */ | |
422 | ret = xgbe_write_rss_lookup_table(pdata); | |
423 | if (ret) | |
424 | return ret; | |
425 | ||
426 | /* Set the RSS options */ | |
427 | XGMAC_IOWRITE(pdata, MAC_RSSCR, pdata->rss_options); | |
428 | ||
429 | /* Enable RSS */ | |
430 | XGMAC_IOWRITE_BITS(pdata, MAC_RSSCR, RSSE, 1); | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
435 | static int xgbe_disable_rss(struct xgbe_prv_data *pdata) | |
436 | { | |
437 | if (!pdata->hw_feat.rss) | |
438 | return -EOPNOTSUPP; | |
439 | ||
440 | XGMAC_IOWRITE_BITS(pdata, MAC_RSSCR, RSSE, 0); | |
441 | ||
442 | return 0; | |
443 | } | |
444 | ||
445 | static void xgbe_config_rss(struct xgbe_prv_data *pdata) | |
446 | { | |
447 | int ret; | |
448 | ||
449 | if (!pdata->hw_feat.rss) | |
450 | return; | |
451 | ||
452 | if (pdata->netdev->features & NETIF_F_RXHASH) | |
453 | ret = xgbe_enable_rss(pdata); | |
454 | else | |
455 | ret = xgbe_disable_rss(pdata); | |
456 | ||
457 | if (ret) | |
458 | netdev_err(pdata->netdev, | |
459 | "error configuring RSS, RSS disabled\n"); | |
460 | } | |
461 | ||
43e0dcf7 LT |
462 | static bool xgbe_is_pfc_queue(struct xgbe_prv_data *pdata, |
463 | unsigned int queue) | |
464 | { | |
465 | unsigned int prio, tc; | |
466 | ||
467 | for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; prio++) { | |
468 | /* Does this queue handle the priority? */ | |
469 | if (pdata->prio2q_map[prio] != queue) | |
470 | continue; | |
471 | ||
472 | /* Get the Traffic Class for this priority */ | |
473 | tc = pdata->ets->prio_tc[prio]; | |
474 | ||
475 | /* Check if PFC is enabled for this traffic class */ | |
476 | if (pdata->pfc->pfc_en & (1 << tc)) | |
477 | return true; | |
478 | } | |
479 | ||
480 | return false; | |
481 | } | |
482 | ||
1a510ccf LT |
483 | static void xgbe_set_vxlan_id(struct xgbe_prv_data *pdata) |
484 | { | |
485 | /* Program the VXLAN port */ | |
486 | XGMAC_IOWRITE_BITS(pdata, MAC_TIR, TNID, pdata->vxlan_port); | |
487 | ||
488 | netif_dbg(pdata, drv, pdata->netdev, "VXLAN tunnel id set to %hx\n", | |
489 | pdata->vxlan_port); | |
490 | } | |
491 | ||
492 | static void xgbe_enable_vxlan(struct xgbe_prv_data *pdata) | |
493 | { | |
494 | if (!pdata->hw_feat.vxn) | |
495 | return; | |
496 | ||
497 | /* Program the VXLAN port */ | |
498 | xgbe_set_vxlan_id(pdata); | |
499 | ||
500 | /* Allow for IPv6/UDP zero-checksum VXLAN packets */ | |
501 | XGMAC_IOWRITE_BITS(pdata, MAC_PFR, VUCC, 1); | |
502 | ||
503 | /* Enable VXLAN tunneling mode */ | |
504 | XGMAC_IOWRITE_BITS(pdata, MAC_TCR, VNM, 0); | |
505 | XGMAC_IOWRITE_BITS(pdata, MAC_TCR, VNE, 1); | |
506 | ||
507 | netif_dbg(pdata, drv, pdata->netdev, "VXLAN acceleration enabled\n"); | |
508 | } | |
509 | ||
510 | static void xgbe_disable_vxlan(struct xgbe_prv_data *pdata) | |
511 | { | |
512 | if (!pdata->hw_feat.vxn) | |
513 | return; | |
514 | ||
515 | /* Disable tunneling mode */ | |
516 | XGMAC_IOWRITE_BITS(pdata, MAC_TCR, VNE, 0); | |
517 | ||
518 | /* Clear IPv6/UDP zero-checksum VXLAN packets setting */ | |
519 | XGMAC_IOWRITE_BITS(pdata, MAC_PFR, VUCC, 0); | |
520 | ||
521 | /* Clear the VXLAN port */ | |
522 | XGMAC_IOWRITE_BITS(pdata, MAC_TIR, TNID, 0); | |
523 | ||
524 | netif_dbg(pdata, drv, pdata->netdev, "VXLAN acceleration disabled\n"); | |
525 | } | |
526 | ||
c5aa9e3b LT |
527 | static int xgbe_disable_tx_flow_control(struct xgbe_prv_data *pdata) |
528 | { | |
529 | unsigned int max_q_count, q_count; | |
530 | unsigned int reg, reg_val; | |
531 | unsigned int i; | |
532 | ||
533 | /* Clear MTL flow control */ | |
853eb16b | 534 | for (i = 0; i < pdata->rx_q_count; i++) |
c5aa9e3b LT |
535 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, EHFC, 0); |
536 | ||
537 | /* Clear MAC flow control */ | |
538 | max_q_count = XGMAC_MAX_FLOW_CONTROL_QUEUES; | |
9fc69aff | 539 | q_count = min_t(unsigned int, pdata->tx_q_count, max_q_count); |
c5aa9e3b LT |
540 | reg = MAC_Q0TFCR; |
541 | for (i = 0; i < q_count; i++) { | |
542 | reg_val = XGMAC_IOREAD(pdata, reg); | |
543 | XGMAC_SET_BITS(reg_val, MAC_Q0TFCR, TFE, 0); | |
544 | XGMAC_IOWRITE(pdata, reg, reg_val); | |
545 | ||
546 | reg += MAC_QTFCR_INC; | |
547 | } | |
548 | ||
549 | return 0; | |
550 | } | |
551 | ||
552 | static int xgbe_enable_tx_flow_control(struct xgbe_prv_data *pdata) | |
553 | { | |
8dba2a2a LT |
554 | struct ieee_pfc *pfc = pdata->pfc; |
555 | struct ieee_ets *ets = pdata->ets; | |
c5aa9e3b LT |
556 | unsigned int max_q_count, q_count; |
557 | unsigned int reg, reg_val; | |
558 | unsigned int i; | |
559 | ||
560 | /* Set MTL flow control */ | |
8dba2a2a LT |
561 | for (i = 0; i < pdata->rx_q_count; i++) { |
562 | unsigned int ehfc = 0; | |
563 | ||
43e0dcf7 LT |
564 | if (pdata->rx_rfd[i]) { |
565 | /* Flow control thresholds are established */ | |
566 | if (pfc && ets) { | |
567 | if (xgbe_is_pfc_queue(pdata, i)) | |
8dba2a2a | 568 | ehfc = 1; |
43e0dcf7 LT |
569 | } else { |
570 | ehfc = 1; | |
8dba2a2a | 571 | } |
8dba2a2a LT |
572 | } |
573 | ||
574 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, EHFC, ehfc); | |
575 | ||
576 | netif_dbg(pdata, drv, pdata->netdev, | |
577 | "flow control %s for RXq%u\n", | |
578 | ehfc ? "enabled" : "disabled", i); | |
579 | } | |
c5aa9e3b LT |
580 | |
581 | /* Set MAC flow control */ | |
582 | max_q_count = XGMAC_MAX_FLOW_CONTROL_QUEUES; | |
9fc69aff | 583 | q_count = min_t(unsigned int, pdata->tx_q_count, max_q_count); |
c5aa9e3b LT |
584 | reg = MAC_Q0TFCR; |
585 | for (i = 0; i < q_count; i++) { | |
586 | reg_val = XGMAC_IOREAD(pdata, reg); | |
587 | ||
588 | /* Enable transmit flow control */ | |
589 | XGMAC_SET_BITS(reg_val, MAC_Q0TFCR, TFE, 1); | |
590 | /* Set pause time */ | |
591 | XGMAC_SET_BITS(reg_val, MAC_Q0TFCR, PT, 0xffff); | |
592 | ||
593 | XGMAC_IOWRITE(pdata, reg, reg_val); | |
594 | ||
595 | reg += MAC_QTFCR_INC; | |
596 | } | |
597 | ||
598 | return 0; | |
599 | } | |
600 | ||
601 | static int xgbe_disable_rx_flow_control(struct xgbe_prv_data *pdata) | |
602 | { | |
603 | XGMAC_IOWRITE_BITS(pdata, MAC_RFCR, RFE, 0); | |
604 | ||
605 | return 0; | |
606 | } | |
607 | ||
608 | static int xgbe_enable_rx_flow_control(struct xgbe_prv_data *pdata) | |
609 | { | |
610 | XGMAC_IOWRITE_BITS(pdata, MAC_RFCR, RFE, 1); | |
611 | ||
612 | return 0; | |
613 | } | |
614 | ||
615 | static int xgbe_config_tx_flow_control(struct xgbe_prv_data *pdata) | |
616 | { | |
fca2d994 LT |
617 | struct ieee_pfc *pfc = pdata->pfc; |
618 | ||
619 | if (pdata->tx_pause || (pfc && pfc->pfc_en)) | |
c5aa9e3b LT |
620 | xgbe_enable_tx_flow_control(pdata); |
621 | else | |
622 | xgbe_disable_tx_flow_control(pdata); | |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
627 | static int xgbe_config_rx_flow_control(struct xgbe_prv_data *pdata) | |
628 | { | |
fca2d994 LT |
629 | struct ieee_pfc *pfc = pdata->pfc; |
630 | ||
631 | if (pdata->rx_pause || (pfc && pfc->pfc_en)) | |
c5aa9e3b LT |
632 | xgbe_enable_rx_flow_control(pdata); |
633 | else | |
634 | xgbe_disable_rx_flow_control(pdata); | |
635 | ||
636 | return 0; | |
637 | } | |
638 | ||
639 | static void xgbe_config_flow_control(struct xgbe_prv_data *pdata) | |
640 | { | |
fca2d994 LT |
641 | struct ieee_pfc *pfc = pdata->pfc; |
642 | ||
c5aa9e3b LT |
643 | xgbe_config_tx_flow_control(pdata); |
644 | xgbe_config_rx_flow_control(pdata); | |
fca2d994 LT |
645 | |
646 | XGMAC_IOWRITE_BITS(pdata, MAC_RFCR, PFCE, | |
647 | (pfc && pfc->pfc_en) ? 1 : 0); | |
c5aa9e3b LT |
648 | } |
649 | ||
650 | static void xgbe_enable_dma_interrupts(struct xgbe_prv_data *pdata) | |
651 | { | |
652 | struct xgbe_channel *channel; | |
f602b976 | 653 | unsigned int i, ver; |
c5aa9e3b | 654 | |
4c70dd8a LT |
655 | /* Set the interrupt mode if supported */ |
656 | if (pdata->channel_irq_mode) | |
657 | XGMAC_IOWRITE_BITS(pdata, DMA_MR, INTM, | |
658 | pdata->channel_irq_mode); | |
659 | ||
f602b976 TL |
660 | ver = XGMAC_GET_BITS(pdata->hw_feat.version, MAC_VR, SNPSVER); |
661 | ||
18f9f0ac LT |
662 | for (i = 0; i < pdata->channel_count; i++) { |
663 | channel = pdata->channel[i]; | |
664 | ||
c5aa9e3b | 665 | /* Clear all the interrupts which are set */ |
caa575af LT |
666 | XGMAC_DMA_IOWRITE(channel, DMA_CH_SR, |
667 | XGMAC_DMA_IOREAD(channel, DMA_CH_SR)); | |
c5aa9e3b LT |
668 | |
669 | /* Clear all interrupt enable bits */ | |
caa575af | 670 | channel->curr_ier = 0; |
c5aa9e3b LT |
671 | |
672 | /* Enable following interrupts | |
673 | * NIE - Normal Interrupt Summary Enable | |
674 | * AIE - Abnormal Interrupt Summary Enable | |
675 | * FBEE - Fatal Bus Error Enable | |
676 | */ | |
f602b976 TL |
677 | if (ver < 0x21) { |
678 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, NIE20, 1); | |
679 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, AIE20, 1); | |
680 | } else { | |
681 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, NIE, 1); | |
682 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, AIE, 1); | |
683 | } | |
caa575af | 684 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, FBEE, 1); |
c5aa9e3b LT |
685 | |
686 | if (channel->tx_ring) { | |
687 | /* Enable the following Tx interrupts | |
9227dc5e | 688 | * TIE - Transmit Interrupt Enable (unless using |
4c70dd8a LT |
689 | * per channel interrupts in edge triggered |
690 | * mode) | |
c5aa9e3b | 691 | */ |
4c70dd8a | 692 | if (!pdata->per_channel_irq || pdata->channel_irq_mode) |
caa575af LT |
693 | XGMAC_SET_BITS(channel->curr_ier, |
694 | DMA_CH_IER, TIE, 1); | |
c5aa9e3b LT |
695 | } |
696 | if (channel->rx_ring) { | |
697 | /* Enable following Rx interrupts | |
698 | * RBUE - Receive Buffer Unavailable Enable | |
9227dc5e | 699 | * RIE - Receive Interrupt Enable (unless using |
4c70dd8a LT |
700 | * per channel interrupts in edge triggered |
701 | * mode) | |
c5aa9e3b | 702 | */ |
caa575af | 703 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RBUE, 1); |
4c70dd8a | 704 | if (!pdata->per_channel_irq || pdata->channel_irq_mode) |
caa575af LT |
705 | XGMAC_SET_BITS(channel->curr_ier, |
706 | DMA_CH_IER, RIE, 1); | |
c5aa9e3b LT |
707 | } |
708 | ||
caa575af | 709 | XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, channel->curr_ier); |
c5aa9e3b LT |
710 | } |
711 | } | |
712 | ||
713 | static void xgbe_enable_mtl_interrupts(struct xgbe_prv_data *pdata) | |
714 | { | |
715 | unsigned int mtl_q_isr; | |
716 | unsigned int q_count, i; | |
717 | ||
718 | q_count = max(pdata->hw_feat.tx_q_cnt, pdata->hw_feat.rx_q_cnt); | |
719 | for (i = 0; i < q_count; i++) { | |
720 | /* Clear all the interrupts which are set */ | |
721 | mtl_q_isr = XGMAC_MTL_IOREAD(pdata, i, MTL_Q_ISR); | |
722 | XGMAC_MTL_IOWRITE(pdata, i, MTL_Q_ISR, mtl_q_isr); | |
723 | ||
724 | /* No MTL interrupts to be enabled */ | |
91f87345 | 725 | XGMAC_MTL_IOWRITE(pdata, i, MTL_Q_IER, 0); |
c5aa9e3b LT |
726 | } |
727 | } | |
728 | ||
729 | static void xgbe_enable_mac_interrupts(struct xgbe_prv_data *pdata) | |
730 | { | |
23e4eef7 LT |
731 | unsigned int mac_ier = 0; |
732 | ||
733 | /* Enable Timestamp interrupt */ | |
734 | XGMAC_SET_BITS(mac_ier, MAC_IER, TSIE, 1); | |
735 | ||
736 | XGMAC_IOWRITE(pdata, MAC_IER, mac_ier); | |
c5aa9e3b LT |
737 | |
738 | /* Enable all counter interrupts */ | |
a3ba7c98 LT |
739 | XGMAC_IOWRITE_BITS(pdata, MMC_RIER, ALL_INTERRUPTS, 0xffffffff); |
740 | XGMAC_IOWRITE_BITS(pdata, MMC_TIER, ALL_INTERRUPTS, 0xffffffff); | |
732f2ab7 LT |
741 | |
742 | /* Enable MDIO single command completion interrupt */ | |
743 | XGMAC_IOWRITE_BITS(pdata, MAC_MDIOIER, SNGLCOMPIE, 1); | |
c5aa9e3b LT |
744 | } |
745 | ||
e78332b2 LT |
746 | static void xgbe_enable_ecc_interrupts(struct xgbe_prv_data *pdata) |
747 | { | |
748 | unsigned int ecc_isr, ecc_ier = 0; | |
749 | ||
750 | if (!pdata->vdata->ecc_support) | |
751 | return; | |
752 | ||
753 | /* Clear all the interrupts which are set */ | |
754 | ecc_isr = XP_IOREAD(pdata, XP_ECC_ISR); | |
755 | XP_IOWRITE(pdata, XP_ECC_ISR, ecc_isr); | |
756 | ||
757 | /* Enable ECC interrupts */ | |
758 | XP_SET_BITS(ecc_ier, XP_ECC_IER, TX_DED, 1); | |
759 | XP_SET_BITS(ecc_ier, XP_ECC_IER, TX_SEC, 1); | |
760 | XP_SET_BITS(ecc_ier, XP_ECC_IER, RX_DED, 1); | |
761 | XP_SET_BITS(ecc_ier, XP_ECC_IER, RX_SEC, 1); | |
762 | XP_SET_BITS(ecc_ier, XP_ECC_IER, DESC_DED, 1); | |
763 | XP_SET_BITS(ecc_ier, XP_ECC_IER, DESC_SEC, 1); | |
764 | ||
765 | XP_IOWRITE(pdata, XP_ECC_IER, ecc_ier); | |
766 | } | |
767 | ||
768 | static void xgbe_disable_ecc_ded(struct xgbe_prv_data *pdata) | |
769 | { | |
770 | unsigned int ecc_ier; | |
771 | ||
772 | ecc_ier = XP_IOREAD(pdata, XP_ECC_IER); | |
773 | ||
774 | /* Disable ECC DED interrupts */ | |
775 | XP_SET_BITS(ecc_ier, XP_ECC_IER, TX_DED, 0); | |
776 | XP_SET_BITS(ecc_ier, XP_ECC_IER, RX_DED, 0); | |
777 | XP_SET_BITS(ecc_ier, XP_ECC_IER, DESC_DED, 0); | |
778 | ||
779 | XP_IOWRITE(pdata, XP_ECC_IER, ecc_ier); | |
780 | } | |
781 | ||
782 | static void xgbe_disable_ecc_sec(struct xgbe_prv_data *pdata, | |
783 | enum xgbe_ecc_sec sec) | |
784 | { | |
785 | unsigned int ecc_ier; | |
786 | ||
787 | ecc_ier = XP_IOREAD(pdata, XP_ECC_IER); | |
788 | ||
789 | /* Disable ECC SEC interrupt */ | |
790 | switch (sec) { | |
791 | case XGBE_ECC_SEC_TX: | |
792 | XP_SET_BITS(ecc_ier, XP_ECC_IER, TX_SEC, 0); | |
793 | break; | |
794 | case XGBE_ECC_SEC_RX: | |
795 | XP_SET_BITS(ecc_ier, XP_ECC_IER, RX_SEC, 0); | |
796 | break; | |
797 | case XGBE_ECC_SEC_DESC: | |
798 | XP_SET_BITS(ecc_ier, XP_ECC_IER, DESC_SEC, 0); | |
799 | break; | |
800 | } | |
801 | ||
802 | XP_IOWRITE(pdata, XP_ECC_IER, ecc_ier); | |
803 | } | |
804 | ||
e57f7a3f | 805 | static int xgbe_set_speed(struct xgbe_prv_data *pdata, int speed) |
c5aa9e3b | 806 | { |
e57f7a3f | 807 | unsigned int ss; |
c3152d47 | 808 | |
e57f7a3f LT |
809 | switch (speed) { |
810 | case SPEED_1000: | |
811 | ss = 0x03; | |
812 | break; | |
813 | case SPEED_2500: | |
814 | ss = 0x02; | |
815 | break; | |
816 | case SPEED_10000: | |
817 | ss = 0x00; | |
818 | break; | |
819 | default: | |
820 | return -EINVAL; | |
821 | } | |
c3152d47 | 822 | |
e57f7a3f LT |
823 | if (XGMAC_IOREAD_BITS(pdata, MAC_TCR, SS) != ss) |
824 | XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, ss); | |
c5aa9e3b LT |
825 | |
826 | return 0; | |
827 | } | |
828 | ||
b4eee84f LT |
829 | static int xgbe_enable_rx_vlan_stripping(struct xgbe_prv_data *pdata) |
830 | { | |
831 | /* Put the VLAN tag in the Rx descriptor */ | |
832 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, EVLRXS, 1); | |
833 | ||
834 | /* Don't check the VLAN type */ | |
835 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, DOVLTC, 1); | |
836 | ||
837 | /* Check only C-TAG (0x8100) packets */ | |
838 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, ERSVLM, 0); | |
839 | ||
840 | /* Don't consider an S-TAG (0x88A8) packet as a VLAN packet */ | |
841 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, ESVL, 0); | |
842 | ||
843 | /* Enable VLAN tag stripping */ | |
844 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, EVLS, 0x3); | |
845 | ||
846 | return 0; | |
847 | } | |
848 | ||
849 | static int xgbe_disable_rx_vlan_stripping(struct xgbe_prv_data *pdata) | |
850 | { | |
851 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, EVLS, 0); | |
852 | ||
853 | return 0; | |
854 | } | |
855 | ||
856 | static int xgbe_enable_rx_vlan_filtering(struct xgbe_prv_data *pdata) | |
857 | { | |
858 | /* Enable VLAN filtering */ | |
859 | XGMAC_IOWRITE_BITS(pdata, MAC_PFR, VTFE, 1); | |
860 | ||
861 | /* Enable VLAN Hash Table filtering */ | |
862 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VTHM, 1); | |
863 | ||
864 | /* Disable VLAN tag inverse matching */ | |
865 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VTIM, 0); | |
866 | ||
867 | /* Only filter on the lower 12-bits of the VLAN tag */ | |
868 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, ETV, 1); | |
869 | ||
870 | /* In order for the VLAN Hash Table filtering to be effective, | |
871 | * the VLAN tag identifier in the VLAN Tag Register must not | |
872 | * be zero. Set the VLAN tag identifier to "1" to enable the | |
873 | * VLAN Hash Table filtering. This implies that a VLAN tag of | |
874 | * 1 will always pass filtering. | |
875 | */ | |
876 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANTR, VL, 1); | |
877 | ||
878 | return 0; | |
879 | } | |
880 | ||
881 | static int xgbe_disable_rx_vlan_filtering(struct xgbe_prv_data *pdata) | |
882 | { | |
883 | /* Disable VLAN filtering */ | |
884 | XGMAC_IOWRITE_BITS(pdata, MAC_PFR, VTFE, 0); | |
885 | ||
886 | return 0; | |
887 | } | |
888 | ||
889 | static u32 xgbe_vid_crc32_le(__le16 vid_le) | |
890 | { | |
b4eee84f LT |
891 | u32 crc = ~0; |
892 | u32 temp = 0; | |
893 | unsigned char *data = (unsigned char *)&vid_le; | |
894 | unsigned char data_byte = 0; | |
895 | int i, bits; | |
896 | ||
897 | bits = get_bitmask_order(VLAN_VID_MASK); | |
898 | for (i = 0; i < bits; i++) { | |
899 | if ((i % 8) == 0) | |
900 | data_byte = data[i / 8]; | |
901 | ||
902 | temp = ((crc & 1) ^ data_byte) & 1; | |
903 | crc >>= 1; | |
904 | data_byte >>= 1; | |
905 | ||
906 | if (temp) | |
5d258b48 | 907 | crc ^= CRC32_POLY_LE; |
b4eee84f LT |
908 | } |
909 | ||
910 | return crc; | |
911 | } | |
912 | ||
913 | static int xgbe_update_vlan_hash_table(struct xgbe_prv_data *pdata) | |
914 | { | |
915 | u32 crc; | |
916 | u16 vid; | |
917 | __le16 vid_le; | |
918 | u16 vlan_hash_table = 0; | |
919 | ||
920 | /* Generate the VLAN Hash Table value */ | |
921 | for_each_set_bit(vid, pdata->active_vlans, VLAN_N_VID) { | |
922 | /* Get the CRC32 value of the VLAN ID */ | |
923 | vid_le = cpu_to_le16(vid); | |
924 | crc = bitrev32(~xgbe_vid_crc32_le(vid_le)) >> 28; | |
925 | ||
926 | vlan_hash_table |= (1 << crc); | |
927 | } | |
928 | ||
929 | /* Set the VLAN Hash Table filtering register */ | |
930 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANHTR, VLHT, vlan_hash_table); | |
931 | ||
932 | return 0; | |
933 | } | |
934 | ||
c5aa9e3b LT |
935 | static int xgbe_set_promiscuous_mode(struct xgbe_prv_data *pdata, |
936 | unsigned int enable) | |
937 | { | |
938 | unsigned int val = enable ? 1 : 0; | |
939 | ||
940 | if (XGMAC_IOREAD_BITS(pdata, MAC_PFR, PR) == val) | |
941 | return 0; | |
942 | ||
34bf65df LT |
943 | netif_dbg(pdata, drv, pdata->netdev, "%s promiscuous mode\n", |
944 | enable ? "entering" : "leaving"); | |
c5aa9e3b LT |
945 | XGMAC_IOWRITE_BITS(pdata, MAC_PFR, PR, val); |
946 | ||
b4eee84f LT |
947 | /* Hardware will still perform VLAN filtering in promiscuous mode */ |
948 | if (enable) { | |
949 | xgbe_disable_rx_vlan_filtering(pdata); | |
950 | } else { | |
951 | if (pdata->netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER) | |
952 | xgbe_enable_rx_vlan_filtering(pdata); | |
953 | } | |
954 | ||
c5aa9e3b LT |
955 | return 0; |
956 | } | |
957 | ||
958 | static int xgbe_set_all_multicast_mode(struct xgbe_prv_data *pdata, | |
959 | unsigned int enable) | |
960 | { | |
961 | unsigned int val = enable ? 1 : 0; | |
962 | ||
963 | if (XGMAC_IOREAD_BITS(pdata, MAC_PFR, PM) == val) | |
964 | return 0; | |
965 | ||
34bf65df LT |
966 | netif_dbg(pdata, drv, pdata->netdev, "%s allmulti mode\n", |
967 | enable ? "entering" : "leaving"); | |
c5aa9e3b LT |
968 | XGMAC_IOWRITE_BITS(pdata, MAC_PFR, PM, val); |
969 | ||
970 | return 0; | |
971 | } | |
972 | ||
b85e4d89 LT |
973 | static void xgbe_set_mac_reg(struct xgbe_prv_data *pdata, |
974 | struct netdev_hw_addr *ha, unsigned int *mac_reg) | |
c5aa9e3b | 975 | { |
c5aa9e3b LT |
976 | unsigned int mac_addr_hi, mac_addr_lo; |
977 | u8 *mac_addr; | |
c5aa9e3b | 978 | |
b85e4d89 LT |
979 | mac_addr_lo = 0; |
980 | mac_addr_hi = 0; | |
c5aa9e3b | 981 | |
b85e4d89 | 982 | if (ha) { |
c5aa9e3b LT |
983 | mac_addr = (u8 *)&mac_addr_lo; |
984 | mac_addr[0] = ha->addr[0]; | |
985 | mac_addr[1] = ha->addr[1]; | |
986 | mac_addr[2] = ha->addr[2]; | |
987 | mac_addr[3] = ha->addr[3]; | |
988 | mac_addr = (u8 *)&mac_addr_hi; | |
989 | mac_addr[0] = ha->addr[4]; | |
990 | mac_addr[1] = ha->addr[5]; | |
991 | ||
34bf65df LT |
992 | netif_dbg(pdata, drv, pdata->netdev, |
993 | "adding mac address %pM at %#x\n", | |
994 | ha->addr, *mac_reg); | |
c5aa9e3b LT |
995 | |
996 | XGMAC_SET_BITS(mac_addr_hi, MAC_MACA1HR, AE, 1); | |
b85e4d89 | 997 | } |
c5aa9e3b | 998 | |
b85e4d89 LT |
999 | XGMAC_IOWRITE(pdata, *mac_reg, mac_addr_hi); |
1000 | *mac_reg += MAC_MACA_INC; | |
1001 | XGMAC_IOWRITE(pdata, *mac_reg, mac_addr_lo); | |
1002 | *mac_reg += MAC_MACA_INC; | |
1003 | } | |
c5aa9e3b | 1004 | |
b85e4d89 LT |
1005 | static void xgbe_set_mac_addn_addrs(struct xgbe_prv_data *pdata) |
1006 | { | |
1007 | struct net_device *netdev = pdata->netdev; | |
1008 | struct netdev_hw_addr *ha; | |
1009 | unsigned int mac_reg; | |
1010 | unsigned int addn_macs; | |
1011 | ||
1012 | mac_reg = MAC_MACA1HR; | |
1013 | addn_macs = pdata->hw_feat.addn_mac; | |
c5aa9e3b | 1014 | |
b85e4d89 LT |
1015 | if (netdev_uc_count(netdev) > addn_macs) { |
1016 | xgbe_set_promiscuous_mode(pdata, 1); | |
1017 | } else { | |
1018 | netdev_for_each_uc_addr(ha, netdev) { | |
1019 | xgbe_set_mac_reg(pdata, ha, &mac_reg); | |
1020 | addn_macs--; | |
1021 | } | |
1022 | ||
1023 | if (netdev_mc_count(netdev) > addn_macs) { | |
1024 | xgbe_set_all_multicast_mode(pdata, 1); | |
1025 | } else { | |
1026 | netdev_for_each_mc_addr(ha, netdev) { | |
1027 | xgbe_set_mac_reg(pdata, ha, &mac_reg); | |
1028 | addn_macs--; | |
1029 | } | |
c5aa9e3b LT |
1030 | } |
1031 | } | |
1032 | ||
1033 | /* Clear remaining additional MAC address entries */ | |
b85e4d89 LT |
1034 | while (addn_macs--) |
1035 | xgbe_set_mac_reg(pdata, NULL, &mac_reg); | |
1036 | } | |
1037 | ||
1038 | static void xgbe_set_mac_hash_table(struct xgbe_prv_data *pdata) | |
1039 | { | |
1040 | struct net_device *netdev = pdata->netdev; | |
1041 | struct netdev_hw_addr *ha; | |
1042 | unsigned int hash_reg; | |
1043 | unsigned int hash_table_shift, hash_table_count; | |
1044 | u32 hash_table[XGBE_MAC_HASH_TABLE_SIZE]; | |
1045 | u32 crc; | |
1046 | unsigned int i; | |
1047 | ||
1048 | hash_table_shift = 26 - (pdata->hw_feat.hash_table_size >> 7); | |
1049 | hash_table_count = pdata->hw_feat.hash_table_size / 32; | |
1050 | memset(hash_table, 0, sizeof(hash_table)); | |
1051 | ||
1052 | /* Build the MAC Hash Table register values */ | |
1053 | netdev_for_each_uc_addr(ha, netdev) { | |
1054 | crc = bitrev32(~crc32_le(~0, ha->addr, ETH_ALEN)); | |
1055 | crc >>= hash_table_shift; | |
1056 | hash_table[crc >> 5] |= (1 << (crc & 0x1f)); | |
1057 | } | |
1058 | ||
1059 | netdev_for_each_mc_addr(ha, netdev) { | |
1060 | crc = bitrev32(~crc32_le(~0, ha->addr, ETH_ALEN)); | |
1061 | crc >>= hash_table_shift; | |
1062 | hash_table[crc >> 5] |= (1 << (crc & 0x1f)); | |
c5aa9e3b LT |
1063 | } |
1064 | ||
b85e4d89 LT |
1065 | /* Set the MAC Hash Table registers */ |
1066 | hash_reg = MAC_HTR0; | |
1067 | for (i = 0; i < hash_table_count; i++) { | |
1068 | XGMAC_IOWRITE(pdata, hash_reg, hash_table[i]); | |
1069 | hash_reg += MAC_HTR_INC; | |
1070 | } | |
1071 | } | |
1072 | ||
1073 | static int xgbe_add_mac_addresses(struct xgbe_prv_data *pdata) | |
1074 | { | |
1075 | if (pdata->hw_feat.hash_table_size) | |
1076 | xgbe_set_mac_hash_table(pdata); | |
1077 | else | |
1078 | xgbe_set_mac_addn_addrs(pdata); | |
1079 | ||
c5aa9e3b LT |
1080 | return 0; |
1081 | } | |
1082 | ||
76660757 | 1083 | static int xgbe_set_mac_address(struct xgbe_prv_data *pdata, const u8 *addr) |
c5aa9e3b LT |
1084 | { |
1085 | unsigned int mac_addr_hi, mac_addr_lo; | |
1086 | ||
1087 | mac_addr_hi = (addr[5] << 8) | (addr[4] << 0); | |
1088 | mac_addr_lo = (addr[3] << 24) | (addr[2] << 16) | | |
1089 | (addr[1] << 8) | (addr[0] << 0); | |
1090 | ||
1091 | XGMAC_IOWRITE(pdata, MAC_MACA0HR, mac_addr_hi); | |
1092 | XGMAC_IOWRITE(pdata, MAC_MACA0LR, mac_addr_lo); | |
1093 | ||
1094 | return 0; | |
1095 | } | |
1096 | ||
b876382b LT |
1097 | static int xgbe_config_rx_mode(struct xgbe_prv_data *pdata) |
1098 | { | |
1099 | struct net_device *netdev = pdata->netdev; | |
1100 | unsigned int pr_mode, am_mode; | |
1101 | ||
1102 | pr_mode = ((netdev->flags & IFF_PROMISC) != 0); | |
1103 | am_mode = ((netdev->flags & IFF_ALLMULTI) != 0); | |
1104 | ||
1105 | xgbe_set_promiscuous_mode(pdata, pr_mode); | |
1106 | xgbe_set_all_multicast_mode(pdata, am_mode); | |
1107 | ||
1108 | xgbe_add_mac_addresses(pdata); | |
1109 | ||
1110 | return 0; | |
1111 | } | |
1112 | ||
732f2ab7 LT |
1113 | static int xgbe_clr_gpio(struct xgbe_prv_data *pdata, unsigned int gpio) |
1114 | { | |
1115 | unsigned int reg; | |
1116 | ||
1c1f619e | 1117 | if (gpio > 15) |
732f2ab7 LT |
1118 | return -EINVAL; |
1119 | ||
1120 | reg = XGMAC_IOREAD(pdata, MAC_GPIOSR); | |
1121 | ||
1122 | reg &= ~(1 << (gpio + 16)); | |
1123 | XGMAC_IOWRITE(pdata, MAC_GPIOSR, reg); | |
1124 | ||
1125 | return 0; | |
1126 | } | |
1127 | ||
1128 | static int xgbe_set_gpio(struct xgbe_prv_data *pdata, unsigned int gpio) | |
1129 | { | |
1130 | unsigned int reg; | |
1131 | ||
1c1f619e | 1132 | if (gpio > 15) |
732f2ab7 LT |
1133 | return -EINVAL; |
1134 | ||
1135 | reg = XGMAC_IOREAD(pdata, MAC_GPIOSR); | |
1136 | ||
1137 | reg |= (1 << (gpio + 16)); | |
1138 | XGMAC_IOWRITE(pdata, MAC_GPIOSR, reg); | |
1139 | ||
1140 | return 0; | |
1141 | } | |
1142 | ||
b03a4a6f LT |
1143 | static int xgbe_read_mmd_regs_v2(struct xgbe_prv_data *pdata, int prtad, |
1144 | int mmd_reg) | |
1145 | { | |
1146 | unsigned long flags; | |
1147 | unsigned int mmd_address, index, offset; | |
1148 | int mmd_data; | |
1149 | ||
1150 | if (mmd_reg & MII_ADDR_C45) | |
1151 | mmd_address = mmd_reg & ~MII_ADDR_C45; | |
1152 | else | |
1153 | mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff); | |
1154 | ||
1155 | /* The PCS registers are accessed using mmio. The underlying | |
1156 | * management interface uses indirect addressing to access the MMD | |
1157 | * register sets. This requires accessing of the PCS register in two | |
1158 | * phases, an address phase and a data phase. | |
1159 | * | |
1160 | * The mmio interface is based on 16-bit offsets and values. All | |
1161 | * register offsets must therefore be adjusted by left shifting the | |
1162 | * offset 1 bit and reading 16 bits of data. | |
1163 | */ | |
1164 | mmd_address <<= 1; | |
1165 | index = mmd_address & ~pdata->xpcs_window_mask; | |
1166 | offset = pdata->xpcs_window + (mmd_address & pdata->xpcs_window_mask); | |
1167 | ||
1168 | spin_lock_irqsave(&pdata->xpcs_lock, flags); | |
4eccbfc3 | 1169 | XPCS32_IOWRITE(pdata, pdata->xpcs_window_sel_reg, index); |
b03a4a6f LT |
1170 | mmd_data = XPCS16_IOREAD(pdata, offset); |
1171 | spin_unlock_irqrestore(&pdata->xpcs_lock, flags); | |
1172 | ||
1173 | return mmd_data; | |
1174 | } | |
1175 | ||
1176 | static void xgbe_write_mmd_regs_v2(struct xgbe_prv_data *pdata, int prtad, | |
1177 | int mmd_reg, int mmd_data) | |
1178 | { | |
1179 | unsigned long flags; | |
1180 | unsigned int mmd_address, index, offset; | |
1181 | ||
1182 | if (mmd_reg & MII_ADDR_C45) | |
1183 | mmd_address = mmd_reg & ~MII_ADDR_C45; | |
1184 | else | |
1185 | mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff); | |
1186 | ||
1187 | /* The PCS registers are accessed using mmio. The underlying | |
1188 | * management interface uses indirect addressing to access the MMD | |
1189 | * register sets. This requires accessing of the PCS register in two | |
1190 | * phases, an address phase and a data phase. | |
1191 | * | |
1192 | * The mmio interface is based on 16-bit offsets and values. All | |
1193 | * register offsets must therefore be adjusted by left shifting the | |
1194 | * offset 1 bit and writing 16 bits of data. | |
1195 | */ | |
1196 | mmd_address <<= 1; | |
1197 | index = mmd_address & ~pdata->xpcs_window_mask; | |
1198 | offset = pdata->xpcs_window + (mmd_address & pdata->xpcs_window_mask); | |
1199 | ||
1200 | spin_lock_irqsave(&pdata->xpcs_lock, flags); | |
4eccbfc3 | 1201 | XPCS32_IOWRITE(pdata, pdata->xpcs_window_sel_reg, index); |
b03a4a6f LT |
1202 | XPCS16_IOWRITE(pdata, offset, mmd_data); |
1203 | spin_unlock_irqrestore(&pdata->xpcs_lock, flags); | |
1204 | } | |
1205 | ||
1206 | static int xgbe_read_mmd_regs_v1(struct xgbe_prv_data *pdata, int prtad, | |
1207 | int mmd_reg) | |
c5aa9e3b | 1208 | { |
ced3fcae | 1209 | unsigned long flags; |
c5aa9e3b LT |
1210 | unsigned int mmd_address; |
1211 | int mmd_data; | |
1212 | ||
1213 | if (mmd_reg & MII_ADDR_C45) | |
1214 | mmd_address = mmd_reg & ~MII_ADDR_C45; | |
1215 | else | |
1216 | mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff); | |
1217 | ||
1218 | /* The PCS registers are accessed using mmio. The underlying APB3 | |
1219 | * management interface uses indirect addressing to access the MMD | |
1220 | * register sets. This requires accessing of the PCS register in two | |
1221 | * phases, an address phase and a data phase. | |
1222 | * | |
1223 | * The mmio interface is based on 32-bit offsets and values. All | |
1224 | * register offsets must therefore be adjusted by left shifting the | |
1225 | * offset 2 bits and reading 32 bits of data. | |
1226 | */ | |
ced3fcae | 1227 | spin_lock_irqsave(&pdata->xpcs_lock, flags); |
b03a4a6f LT |
1228 | XPCS32_IOWRITE(pdata, PCS_V1_WINDOW_SELECT, mmd_address >> 8); |
1229 | mmd_data = XPCS32_IOREAD(pdata, (mmd_address & 0xff) << 2); | |
ced3fcae | 1230 | spin_unlock_irqrestore(&pdata->xpcs_lock, flags); |
c5aa9e3b LT |
1231 | |
1232 | return mmd_data; | |
1233 | } | |
1234 | ||
b03a4a6f LT |
1235 | static void xgbe_write_mmd_regs_v1(struct xgbe_prv_data *pdata, int prtad, |
1236 | int mmd_reg, int mmd_data) | |
c5aa9e3b LT |
1237 | { |
1238 | unsigned int mmd_address; | |
ced3fcae | 1239 | unsigned long flags; |
c5aa9e3b LT |
1240 | |
1241 | if (mmd_reg & MII_ADDR_C45) | |
1242 | mmd_address = mmd_reg & ~MII_ADDR_C45; | |
1243 | else | |
1244 | mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff); | |
1245 | ||
1246 | /* The PCS registers are accessed using mmio. The underlying APB3 | |
1247 | * management interface uses indirect addressing to access the MMD | |
1248 | * register sets. This requires accessing of the PCS register in two | |
1249 | * phases, an address phase and a data phase. | |
1250 | * | |
1251 | * The mmio interface is based on 32-bit offsets and values. All | |
1252 | * register offsets must therefore be adjusted by left shifting the | |
b03a4a6f | 1253 | * offset 2 bits and writing 32 bits of data. |
c5aa9e3b | 1254 | */ |
ced3fcae | 1255 | spin_lock_irqsave(&pdata->xpcs_lock, flags); |
b03a4a6f LT |
1256 | XPCS32_IOWRITE(pdata, PCS_V1_WINDOW_SELECT, mmd_address >> 8); |
1257 | XPCS32_IOWRITE(pdata, (mmd_address & 0xff) << 2, mmd_data); | |
ced3fcae | 1258 | spin_unlock_irqrestore(&pdata->xpcs_lock, flags); |
c5aa9e3b LT |
1259 | } |
1260 | ||
b03a4a6f LT |
1261 | static int xgbe_read_mmd_regs(struct xgbe_prv_data *pdata, int prtad, |
1262 | int mmd_reg) | |
1263 | { | |
1264 | switch (pdata->vdata->xpcs_access) { | |
1265 | case XGBE_XPCS_ACCESS_V1: | |
1266 | return xgbe_read_mmd_regs_v1(pdata, prtad, mmd_reg); | |
1267 | ||
1268 | case XGBE_XPCS_ACCESS_V2: | |
1269 | default: | |
1270 | return xgbe_read_mmd_regs_v2(pdata, prtad, mmd_reg); | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | static void xgbe_write_mmd_regs(struct xgbe_prv_data *pdata, int prtad, | |
1275 | int mmd_reg, int mmd_data) | |
1276 | { | |
1277 | switch (pdata->vdata->xpcs_access) { | |
1278 | case XGBE_XPCS_ACCESS_V1: | |
1279 | return xgbe_write_mmd_regs_v1(pdata, prtad, mmd_reg, mmd_data); | |
1280 | ||
1281 | case XGBE_XPCS_ACCESS_V2: | |
1282 | default: | |
1283 | return xgbe_write_mmd_regs_v2(pdata, prtad, mmd_reg, mmd_data); | |
1284 | } | |
1285 | } | |
1286 | ||
5ab3121b LT |
1287 | static unsigned int xgbe_create_mdio_sca(int port, int reg) |
1288 | { | |
1289 | unsigned int mdio_sca, da; | |
1290 | ||
1291 | da = (reg & MII_ADDR_C45) ? reg >> 16 : 0; | |
1292 | ||
1293 | mdio_sca = 0; | |
1294 | XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, RA, reg); | |
1295 | XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, PA, port); | |
1296 | XGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, DA, da); | |
1297 | ||
1298 | return mdio_sca; | |
1299 | } | |
1300 | ||
732f2ab7 LT |
1301 | static int xgbe_write_ext_mii_regs(struct xgbe_prv_data *pdata, int addr, |
1302 | int reg, u16 val) | |
1303 | { | |
1304 | unsigned int mdio_sca, mdio_sccd; | |
1305 | ||
1306 | reinit_completion(&pdata->mdio_complete); | |
1307 | ||
5ab3121b | 1308 | mdio_sca = xgbe_create_mdio_sca(addr, reg); |
732f2ab7 LT |
1309 | XGMAC_IOWRITE(pdata, MAC_MDIOSCAR, mdio_sca); |
1310 | ||
1311 | mdio_sccd = 0; | |
1312 | XGMAC_SET_BITS(mdio_sccd, MAC_MDIOSCCDR, DATA, val); | |
1313 | XGMAC_SET_BITS(mdio_sccd, MAC_MDIOSCCDR, CMD, 1); | |
1314 | XGMAC_SET_BITS(mdio_sccd, MAC_MDIOSCCDR, BUSY, 1); | |
1315 | XGMAC_IOWRITE(pdata, MAC_MDIOSCCDR, mdio_sccd); | |
1316 | ||
1317 | if (!wait_for_completion_timeout(&pdata->mdio_complete, HZ)) { | |
1318 | netdev_err(pdata->netdev, "mdio write operation timed out\n"); | |
1319 | return -ETIMEDOUT; | |
1320 | } | |
1321 | ||
1322 | return 0; | |
1323 | } | |
1324 | ||
1325 | static int xgbe_read_ext_mii_regs(struct xgbe_prv_data *pdata, int addr, | |
1326 | int reg) | |
1327 | { | |
1328 | unsigned int mdio_sca, mdio_sccd; | |
1329 | ||
1330 | reinit_completion(&pdata->mdio_complete); | |
1331 | ||
5ab3121b | 1332 | mdio_sca = xgbe_create_mdio_sca(addr, reg); |
732f2ab7 LT |
1333 | XGMAC_IOWRITE(pdata, MAC_MDIOSCAR, mdio_sca); |
1334 | ||
1335 | mdio_sccd = 0; | |
1336 | XGMAC_SET_BITS(mdio_sccd, MAC_MDIOSCCDR, CMD, 3); | |
1337 | XGMAC_SET_BITS(mdio_sccd, MAC_MDIOSCCDR, BUSY, 1); | |
1338 | XGMAC_IOWRITE(pdata, MAC_MDIOSCCDR, mdio_sccd); | |
1339 | ||
1340 | if (!wait_for_completion_timeout(&pdata->mdio_complete, HZ)) { | |
1341 | netdev_err(pdata->netdev, "mdio read operation timed out\n"); | |
1342 | return -ETIMEDOUT; | |
1343 | } | |
1344 | ||
1345 | return XGMAC_IOREAD_BITS(pdata, MAC_MDIOSCCDR, DATA); | |
1346 | } | |
1347 | ||
1348 | static int xgbe_set_ext_mii_mode(struct xgbe_prv_data *pdata, unsigned int port, | |
1349 | enum xgbe_mdio_mode mode) | |
1350 | { | |
b42c6761 | 1351 | unsigned int reg_val = XGMAC_IOREAD(pdata, MAC_MDIOCL22R); |
732f2ab7 LT |
1352 | |
1353 | switch (mode) { | |
1354 | case XGBE_MDIO_MODE_CL22: | |
1355 | if (port > XGMAC_MAX_C22_PORT) | |
1356 | return -EINVAL; | |
1357 | reg_val |= (1 << port); | |
1358 | break; | |
1359 | case XGBE_MDIO_MODE_CL45: | |
1360 | break; | |
1361 | default: | |
1362 | return -EINVAL; | |
1363 | } | |
1364 | ||
1365 | XGMAC_IOWRITE(pdata, MAC_MDIOCL22R, reg_val); | |
1366 | ||
1367 | return 0; | |
1368 | } | |
1369 | ||
c5aa9e3b LT |
1370 | static int xgbe_tx_complete(struct xgbe_ring_desc *rdesc) |
1371 | { | |
1372 | return !XGMAC_GET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, OWN); | |
1373 | } | |
1374 | ||
1375 | static int xgbe_disable_rx_csum(struct xgbe_prv_data *pdata) | |
1376 | { | |
1377 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, IPC, 0); | |
1378 | ||
1379 | return 0; | |
1380 | } | |
1381 | ||
1382 | static int xgbe_enable_rx_csum(struct xgbe_prv_data *pdata) | |
1383 | { | |
1384 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, IPC, 1); | |
1385 | ||
1386 | return 0; | |
1387 | } | |
1388 | ||
c5aa9e3b LT |
1389 | static void xgbe_tx_desc_reset(struct xgbe_ring_data *rdata) |
1390 | { | |
1391 | struct xgbe_ring_desc *rdesc = rdata->rdesc; | |
1392 | ||
1393 | /* Reset the Tx descriptor | |
1394 | * Set buffer 1 (lo) address to zero | |
1395 | * Set buffer 1 (hi) address to zero | |
1396 | * Reset all other control bits (IC, TTSE, B2L & B1L) | |
1397 | * Reset all other control bits (OWN, CTXT, FD, LD, CPC, CIC, etc) | |
1398 | */ | |
1399 | rdesc->desc0 = 0; | |
1400 | rdesc->desc1 = 0; | |
1401 | rdesc->desc2 = 0; | |
1402 | rdesc->desc3 = 0; | |
08dcc47c LT |
1403 | |
1404 | /* Make sure ownership is written to the descriptor */ | |
ceb8f6be | 1405 | dma_wmb(); |
c5aa9e3b LT |
1406 | } |
1407 | ||
1408 | static void xgbe_tx_desc_init(struct xgbe_channel *channel) | |
1409 | { | |
1410 | struct xgbe_ring *ring = channel->tx_ring; | |
1411 | struct xgbe_ring_data *rdata; | |
c5aa9e3b LT |
1412 | int i; |
1413 | int start_index = ring->cur; | |
1414 | ||
1415 | DBGPR("-->tx_desc_init\n"); | |
1416 | ||
1417 | /* Initialze all descriptors */ | |
1418 | for (i = 0; i < ring->rdesc_count; i++) { | |
d0a8ba6c | 1419 | rdata = XGBE_GET_DESC_DATA(ring, i); |
c5aa9e3b | 1420 | |
08dcc47c LT |
1421 | /* Initialize Tx descriptor */ |
1422 | xgbe_tx_desc_reset(rdata); | |
1423 | } | |
c5aa9e3b LT |
1424 | |
1425 | /* Update the total number of Tx descriptors */ | |
1426 | XGMAC_DMA_IOWRITE(channel, DMA_CH_TDRLR, ring->rdesc_count - 1); | |
1427 | ||
1428 | /* Update the starting address of descriptor ring */ | |
d0a8ba6c | 1429 | rdata = XGBE_GET_DESC_DATA(ring, start_index); |
c5aa9e3b LT |
1430 | XGMAC_DMA_IOWRITE(channel, DMA_CH_TDLR_HI, |
1431 | upper_32_bits(rdata->rdesc_dma)); | |
1432 | XGMAC_DMA_IOWRITE(channel, DMA_CH_TDLR_LO, | |
1433 | lower_32_bits(rdata->rdesc_dma)); | |
1434 | ||
1435 | DBGPR("<--tx_desc_init\n"); | |
1436 | } | |
1437 | ||
8dee19e6 LT |
1438 | static void xgbe_rx_desc_reset(struct xgbe_prv_data *pdata, |
1439 | struct xgbe_ring_data *rdata, unsigned int index) | |
c5aa9e3b LT |
1440 | { |
1441 | struct xgbe_ring_desc *rdesc = rdata->rdesc; | |
8dee19e6 LT |
1442 | unsigned int rx_usecs = pdata->rx_usecs; |
1443 | unsigned int rx_frames = pdata->rx_frames; | |
1444 | unsigned int inte; | |
cfbfd86b | 1445 | dma_addr_t hdr_dma, buf_dma; |
8dee19e6 LT |
1446 | |
1447 | if (!rx_usecs && !rx_frames) { | |
1448 | /* No coalescing, interrupt for every descriptor */ | |
1449 | inte = 1; | |
1450 | } else { | |
1451 | /* Set interrupt based on Rx frame coalescing setting */ | |
1452 | if (rx_frames && !((index + 1) % rx_frames)) | |
1453 | inte = 1; | |
1454 | else | |
1455 | inte = 0; | |
1456 | } | |
c5aa9e3b LT |
1457 | |
1458 | /* Reset the Rx descriptor | |
174fd259 LT |
1459 | * Set buffer 1 (lo) address to header dma address (lo) |
1460 | * Set buffer 1 (hi) address to header dma address (hi) | |
1461 | * Set buffer 2 (lo) address to buffer dma address (lo) | |
1462 | * Set buffer 2 (hi) address to buffer dma address (hi) and | |
1463 | * set control bits OWN and INTE | |
c5aa9e3b | 1464 | */ |
cfbfd86b LT |
1465 | hdr_dma = rdata->rx.hdr.dma_base + rdata->rx.hdr.dma_off; |
1466 | buf_dma = rdata->rx.buf.dma_base + rdata->rx.buf.dma_off; | |
1467 | rdesc->desc0 = cpu_to_le32(lower_32_bits(hdr_dma)); | |
1468 | rdesc->desc1 = cpu_to_le32(upper_32_bits(hdr_dma)); | |
1469 | rdesc->desc2 = cpu_to_le32(lower_32_bits(buf_dma)); | |
1470 | rdesc->desc3 = cpu_to_le32(upper_32_bits(buf_dma)); | |
c5aa9e3b | 1471 | |
8dee19e6 | 1472 | XGMAC_SET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, INTE, inte); |
c5aa9e3b LT |
1473 | |
1474 | /* Since the Rx DMA engine is likely running, make sure everything | |
1475 | * is written to the descriptor(s) before setting the OWN bit | |
1476 | * for the descriptor | |
1477 | */ | |
ceb8f6be | 1478 | dma_wmb(); |
c5aa9e3b LT |
1479 | |
1480 | XGMAC_SET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, OWN, 1); | |
1481 | ||
1482 | /* Make sure ownership is written to the descriptor */ | |
ceb8f6be | 1483 | dma_wmb(); |
c5aa9e3b LT |
1484 | } |
1485 | ||
1486 | static void xgbe_rx_desc_init(struct xgbe_channel *channel) | |
1487 | { | |
1488 | struct xgbe_prv_data *pdata = channel->pdata; | |
1489 | struct xgbe_ring *ring = channel->rx_ring; | |
1490 | struct xgbe_ring_data *rdata; | |
c5aa9e3b | 1491 | unsigned int start_index = ring->cur; |
c5aa9e3b LT |
1492 | unsigned int i; |
1493 | ||
1494 | DBGPR("-->rx_desc_init\n"); | |
1495 | ||
c5aa9e3b LT |
1496 | /* Initialize all descriptors */ |
1497 | for (i = 0; i < ring->rdesc_count; i++) { | |
d0a8ba6c | 1498 | rdata = XGBE_GET_DESC_DATA(ring, i); |
08dcc47c | 1499 | |
08dcc47c | 1500 | /* Initialize Rx descriptor */ |
8dee19e6 | 1501 | xgbe_rx_desc_reset(pdata, rdata, i); |
08dcc47c | 1502 | } |
c5aa9e3b LT |
1503 | |
1504 | /* Update the total number of Rx descriptors */ | |
1505 | XGMAC_DMA_IOWRITE(channel, DMA_CH_RDRLR, ring->rdesc_count - 1); | |
1506 | ||
1507 | /* Update the starting address of descriptor ring */ | |
d0a8ba6c | 1508 | rdata = XGBE_GET_DESC_DATA(ring, start_index); |
c5aa9e3b LT |
1509 | XGMAC_DMA_IOWRITE(channel, DMA_CH_RDLR_HI, |
1510 | upper_32_bits(rdata->rdesc_dma)); | |
1511 | XGMAC_DMA_IOWRITE(channel, DMA_CH_RDLR_LO, | |
1512 | lower_32_bits(rdata->rdesc_dma)); | |
1513 | ||
1514 | /* Update the Rx Descriptor Tail Pointer */ | |
d0a8ba6c | 1515 | rdata = XGBE_GET_DESC_DATA(ring, start_index + ring->rdesc_count - 1); |
c5aa9e3b LT |
1516 | XGMAC_DMA_IOWRITE(channel, DMA_CH_RDTR_LO, |
1517 | lower_32_bits(rdata->rdesc_dma)); | |
1518 | ||
1519 | DBGPR("<--rx_desc_init\n"); | |
1520 | } | |
1521 | ||
23e4eef7 LT |
1522 | static void xgbe_update_tstamp_addend(struct xgbe_prv_data *pdata, |
1523 | unsigned int addend) | |
1524 | { | |
9018ff53 LT |
1525 | unsigned int count = 10000; |
1526 | ||
23e4eef7 LT |
1527 | /* Set the addend register value and tell the device */ |
1528 | XGMAC_IOWRITE(pdata, MAC_TSAR, addend); | |
1529 | XGMAC_IOWRITE_BITS(pdata, MAC_TSCR, TSADDREG, 1); | |
1530 | ||
1531 | /* Wait for addend update to complete */ | |
9018ff53 | 1532 | while (--count && XGMAC_IOREAD_BITS(pdata, MAC_TSCR, TSADDREG)) |
23e4eef7 | 1533 | udelay(5); |
9018ff53 LT |
1534 | |
1535 | if (!count) | |
1536 | netdev_err(pdata->netdev, | |
1537 | "timed out updating timestamp addend register\n"); | |
23e4eef7 LT |
1538 | } |
1539 | ||
1540 | static void xgbe_set_tstamp_time(struct xgbe_prv_data *pdata, unsigned int sec, | |
1541 | unsigned int nsec) | |
1542 | { | |
9018ff53 LT |
1543 | unsigned int count = 10000; |
1544 | ||
23e4eef7 LT |
1545 | /* Set the time values and tell the device */ |
1546 | XGMAC_IOWRITE(pdata, MAC_STSUR, sec); | |
1547 | XGMAC_IOWRITE(pdata, MAC_STNUR, nsec); | |
1548 | XGMAC_IOWRITE_BITS(pdata, MAC_TSCR, TSINIT, 1); | |
1549 | ||
1550 | /* Wait for time update to complete */ | |
9018ff53 | 1551 | while (--count && XGMAC_IOREAD_BITS(pdata, MAC_TSCR, TSINIT)) |
23e4eef7 | 1552 | udelay(5); |
9018ff53 LT |
1553 | |
1554 | if (!count) | |
1555 | netdev_err(pdata->netdev, "timed out initializing timestamp\n"); | |
23e4eef7 LT |
1556 | } |
1557 | ||
1558 | static u64 xgbe_get_tstamp_time(struct xgbe_prv_data *pdata) | |
1559 | { | |
1560 | u64 nsec; | |
1561 | ||
1562 | nsec = XGMAC_IOREAD(pdata, MAC_STSR); | |
1563 | nsec *= NSEC_PER_SEC; | |
1564 | nsec += XGMAC_IOREAD(pdata, MAC_STNR); | |
1565 | ||
1566 | return nsec; | |
1567 | } | |
1568 | ||
1569 | static u64 xgbe_get_tx_tstamp(struct xgbe_prv_data *pdata) | |
1570 | { | |
aba9777a | 1571 | unsigned int tx_snr, tx_ssr; |
23e4eef7 LT |
1572 | u64 nsec; |
1573 | ||
aba9777a LT |
1574 | if (pdata->vdata->tx_tstamp_workaround) { |
1575 | tx_snr = XGMAC_IOREAD(pdata, MAC_TXSNR); | |
1576 | tx_ssr = XGMAC_IOREAD(pdata, MAC_TXSSR); | |
1577 | } else { | |
1578 | tx_ssr = XGMAC_IOREAD(pdata, MAC_TXSSR); | |
1579 | tx_snr = XGMAC_IOREAD(pdata, MAC_TXSNR); | |
1580 | } | |
1581 | ||
23e4eef7 LT |
1582 | if (XGMAC_GET_BITS(tx_snr, MAC_TXSNR, TXTSSTSMIS)) |
1583 | return 0; | |
1584 | ||
aba9777a | 1585 | nsec = tx_ssr; |
23e4eef7 LT |
1586 | nsec *= NSEC_PER_SEC; |
1587 | nsec += tx_snr; | |
1588 | ||
1589 | return nsec; | |
1590 | } | |
1591 | ||
1592 | static void xgbe_get_rx_tstamp(struct xgbe_packet_data *packet, | |
1593 | struct xgbe_ring_desc *rdesc) | |
1594 | { | |
1595 | u64 nsec; | |
1596 | ||
1597 | if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_CONTEXT_DESC3, TSA) && | |
1598 | !XGMAC_GET_BITS_LE(rdesc->desc3, RX_CONTEXT_DESC3, TSD)) { | |
1599 | nsec = le32_to_cpu(rdesc->desc1); | |
1600 | nsec <<= 32; | |
1601 | nsec |= le32_to_cpu(rdesc->desc0); | |
1602 | if (nsec != 0xffffffffffffffffULL) { | |
1603 | packet->rx_tstamp = nsec; | |
1604 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, | |
1605 | RX_TSTAMP, 1); | |
1606 | } | |
1607 | } | |
1608 | } | |
1609 | ||
1610 | static int xgbe_config_tstamp(struct xgbe_prv_data *pdata, | |
1611 | unsigned int mac_tscr) | |
1612 | { | |
1613 | /* Set one nano-second accuracy */ | |
1614 | XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSCTRLSSR, 1); | |
1615 | ||
1616 | /* Set fine timestamp update */ | |
1617 | XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSCFUPDT, 1); | |
1618 | ||
1619 | /* Overwrite earlier timestamps */ | |
1620 | XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TXTSSTSM, 1); | |
1621 | ||
1622 | XGMAC_IOWRITE(pdata, MAC_TSCR, mac_tscr); | |
1623 | ||
1624 | /* Exit if timestamping is not enabled */ | |
1625 | if (!XGMAC_GET_BITS(mac_tscr, MAC_TSCR, TSENA)) | |
1626 | return 0; | |
1627 | ||
1628 | /* Initialize time registers */ | |
1629 | XGMAC_IOWRITE_BITS(pdata, MAC_SSIR, SSINC, XGBE_TSTAMP_SSINC); | |
1630 | XGMAC_IOWRITE_BITS(pdata, MAC_SSIR, SNSINC, XGBE_TSTAMP_SNSINC); | |
1631 | xgbe_update_tstamp_addend(pdata, pdata->tstamp_addend); | |
1632 | xgbe_set_tstamp_time(pdata, 0, 0); | |
1633 | ||
1634 | /* Initialize the timecounter */ | |
1635 | timecounter_init(&pdata->tstamp_tc, &pdata->tstamp_cc, | |
1636 | ktime_to_ns(ktime_get_real())); | |
1637 | ||
1638 | return 0; | |
1639 | } | |
1640 | ||
16958a2b LT |
1641 | static void xgbe_tx_start_xmit(struct xgbe_channel *channel, |
1642 | struct xgbe_ring *ring) | |
1643 | { | |
1644 | struct xgbe_prv_data *pdata = channel->pdata; | |
1645 | struct xgbe_ring_data *rdata; | |
1646 | ||
ceb8f6be LT |
1647 | /* Make sure everything is written before the register write */ |
1648 | wmb(); | |
1649 | ||
16958a2b LT |
1650 | /* Issue a poll command to Tx DMA by writing address |
1651 | * of next immediate free descriptor */ | |
1652 | rdata = XGBE_GET_DESC_DATA(ring, ring->cur); | |
1653 | XGMAC_DMA_IOWRITE(channel, DMA_CH_TDTR_LO, | |
1654 | lower_32_bits(rdata->rdesc_dma)); | |
1655 | ||
c635eaac | 1656 | /* Start the Tx timer */ |
16958a2b LT |
1657 | if (pdata->tx_usecs && !channel->tx_timer_active) { |
1658 | channel->tx_timer_active = 1; | |
c635eaac LT |
1659 | mod_timer(&channel->tx_timer, |
1660 | jiffies + usecs_to_jiffies(pdata->tx_usecs)); | |
16958a2b LT |
1661 | } |
1662 | ||
1663 | ring->tx.xmit_more = 0; | |
1664 | } | |
1665 | ||
a9d41981 | 1666 | static void xgbe_dev_xmit(struct xgbe_channel *channel) |
c5aa9e3b LT |
1667 | { |
1668 | struct xgbe_prv_data *pdata = channel->pdata; | |
1669 | struct xgbe_ring *ring = channel->tx_ring; | |
1670 | struct xgbe_ring_data *rdata; | |
1671 | struct xgbe_ring_desc *rdesc; | |
1672 | struct xgbe_packet_data *packet = &ring->packet_data; | |
80a788c9 | 1673 | unsigned int tx_packets, tx_bytes; |
1a510ccf | 1674 | unsigned int csum, tso, vlan, vxlan; |
c5aa9e3b | 1675 | unsigned int tso_context, vlan_context; |
eb79e640 | 1676 | unsigned int tx_set_ic; |
c5aa9e3b | 1677 | int start_index = ring->cur; |
a83ef427 | 1678 | int cur_index = ring->cur; |
c5aa9e3b LT |
1679 | int i; |
1680 | ||
a9d41981 | 1681 | DBGPR("-->xgbe_dev_xmit\n"); |
c5aa9e3b | 1682 | |
80a788c9 LT |
1683 | tx_packets = packet->tx_packets; |
1684 | tx_bytes = packet->tx_bytes; | |
1685 | ||
c5aa9e3b LT |
1686 | csum = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, |
1687 | CSUM_ENABLE); | |
1688 | tso = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, | |
1689 | TSO_ENABLE); | |
1690 | vlan = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, | |
1691 | VLAN_CTAG); | |
1a510ccf LT |
1692 | vxlan = XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, |
1693 | VXLAN); | |
c5aa9e3b LT |
1694 | |
1695 | if (tso && (packet->mss != ring->tx.cur_mss)) | |
1696 | tso_context = 1; | |
1697 | else | |
1698 | tso_context = 0; | |
1699 | ||
1700 | if (vlan && (packet->vlan_ctag != ring->tx.cur_vlan_ctag)) | |
1701 | vlan_context = 1; | |
1702 | else | |
1703 | vlan_context = 0; | |
1704 | ||
eb79e640 LT |
1705 | /* Determine if an interrupt should be generated for this Tx: |
1706 | * Interrupt: | |
1707 | * - Tx frame count exceeds the frame count setting | |
1708 | * - Addition of Tx frame count to the frame count since the | |
1709 | * last interrupt was set exceeds the frame count setting | |
1710 | * No interrupt: | |
1711 | * - No frame count setting specified (ethtool -C ethX tx-frames 0) | |
1712 | * - Addition of Tx frame count to the frame count since the | |
1713 | * last interrupt was set does not exceed the frame count setting | |
1714 | */ | |
80a788c9 | 1715 | ring->coalesce_count += tx_packets; |
eb79e640 LT |
1716 | if (!pdata->tx_frames) |
1717 | tx_set_ic = 0; | |
80a788c9 | 1718 | else if (tx_packets > pdata->tx_frames) |
eb79e640 | 1719 | tx_set_ic = 1; |
80a788c9 | 1720 | else if ((ring->coalesce_count % pdata->tx_frames) < tx_packets) |
eb79e640 LT |
1721 | tx_set_ic = 1; |
1722 | else | |
1723 | tx_set_ic = 0; | |
c5aa9e3b | 1724 | |
a83ef427 | 1725 | rdata = XGBE_GET_DESC_DATA(ring, cur_index); |
c5aa9e3b LT |
1726 | rdesc = rdata->rdesc; |
1727 | ||
1728 | /* Create a context descriptor if this is a TSO packet */ | |
1729 | if (tso_context || vlan_context) { | |
1730 | if (tso_context) { | |
34bf65df LT |
1731 | netif_dbg(pdata, tx_queued, pdata->netdev, |
1732 | "TSO context descriptor, mss=%u\n", | |
1733 | packet->mss); | |
c5aa9e3b LT |
1734 | |
1735 | /* Set the MSS size */ | |
1736 | XGMAC_SET_BITS_LE(rdesc->desc2, TX_CONTEXT_DESC2, | |
1737 | MSS, packet->mss); | |
1738 | ||
1739 | /* Mark it as a CONTEXT descriptor */ | |
1740 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_CONTEXT_DESC3, | |
1741 | CTXT, 1); | |
1742 | ||
1743 | /* Indicate this descriptor contains the MSS */ | |
1744 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_CONTEXT_DESC3, | |
1745 | TCMSSV, 1); | |
1746 | ||
1747 | ring->tx.cur_mss = packet->mss; | |
1748 | } | |
1749 | ||
1750 | if (vlan_context) { | |
34bf65df LT |
1751 | netif_dbg(pdata, tx_queued, pdata->netdev, |
1752 | "VLAN context descriptor, ctag=%u\n", | |
1753 | packet->vlan_ctag); | |
c5aa9e3b LT |
1754 | |
1755 | /* Mark it as a CONTEXT descriptor */ | |
1756 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_CONTEXT_DESC3, | |
1757 | CTXT, 1); | |
1758 | ||
1759 | /* Set the VLAN tag */ | |
1760 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_CONTEXT_DESC3, | |
1761 | VT, packet->vlan_ctag); | |
1762 | ||
1763 | /* Indicate this descriptor contains the VLAN tag */ | |
1764 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_CONTEXT_DESC3, | |
1765 | VLTV, 1); | |
1766 | ||
1767 | ring->tx.cur_vlan_ctag = packet->vlan_ctag; | |
1768 | } | |
1769 | ||
a83ef427 LT |
1770 | cur_index++; |
1771 | rdata = XGBE_GET_DESC_DATA(ring, cur_index); | |
c5aa9e3b LT |
1772 | rdesc = rdata->rdesc; |
1773 | } | |
1774 | ||
1775 | /* Update buffer address (for TSO this is the header) */ | |
1776 | rdesc->desc0 = cpu_to_le32(lower_32_bits(rdata->skb_dma)); | |
1777 | rdesc->desc1 = cpu_to_le32(upper_32_bits(rdata->skb_dma)); | |
1778 | ||
1779 | /* Update the buffer length */ | |
1780 | XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, HL_B1L, | |
1781 | rdata->skb_dma_len); | |
1782 | ||
1783 | /* VLAN tag insertion check */ | |
1784 | if (vlan) | |
1785 | XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, VTIR, | |
1786 | TX_NORMAL_DESC2_VLAN_INSERT); | |
1787 | ||
23e4eef7 LT |
1788 | /* Timestamp enablement check */ |
1789 | if (XGMAC_GET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES, PTP)) | |
1790 | XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, TTSE, 1); | |
1791 | ||
c5aa9e3b LT |
1792 | /* Mark it as First Descriptor */ |
1793 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, FD, 1); | |
1794 | ||
1795 | /* Mark it as a NORMAL descriptor */ | |
1796 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, CTXT, 0); | |
1797 | ||
1798 | /* Set OWN bit if not the first descriptor */ | |
a83ef427 | 1799 | if (cur_index != start_index) |
c5aa9e3b LT |
1800 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, OWN, 1); |
1801 | ||
1802 | if (tso) { | |
1803 | /* Enable TSO */ | |
1804 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, TSE, 1); | |
1805 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, TCPPL, | |
1806 | packet->tcp_payload_len); | |
1807 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, TCPHDRLEN, | |
1808 | packet->tcp_header_len / 4); | |
5452b2df | 1809 | |
80a788c9 | 1810 | pdata->ext_stats.tx_tso_packets += tx_packets; |
c5aa9e3b LT |
1811 | } else { |
1812 | /* Enable CRC and Pad Insertion */ | |
1813 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, CPC, 0); | |
1814 | ||
1815 | /* Enable HW CSUM */ | |
1816 | if (csum) | |
1817 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, | |
1818 | CIC, 0x3); | |
1819 | ||
1820 | /* Set the total length to be transmitted */ | |
1821 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, FL, | |
1822 | packet->length); | |
1823 | } | |
1824 | ||
3010608d | 1825 | if (vxlan) { |
1a510ccf LT |
1826 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, VNP, |
1827 | TX_NORMAL_DESC3_VXLAN_PACKET); | |
1828 | ||
3010608d LT |
1829 | pdata->ext_stats.tx_vxlan_packets += packet->tx_packets; |
1830 | } | |
1831 | ||
a83ef427 LT |
1832 | for (i = cur_index - start_index + 1; i < packet->rdesc_count; i++) { |
1833 | cur_index++; | |
1834 | rdata = XGBE_GET_DESC_DATA(ring, cur_index); | |
c5aa9e3b LT |
1835 | rdesc = rdata->rdesc; |
1836 | ||
1837 | /* Update buffer address */ | |
1838 | rdesc->desc0 = cpu_to_le32(lower_32_bits(rdata->skb_dma)); | |
1839 | rdesc->desc1 = cpu_to_le32(upper_32_bits(rdata->skb_dma)); | |
1840 | ||
1841 | /* Update the buffer length */ | |
1842 | XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, HL_B1L, | |
1843 | rdata->skb_dma_len); | |
1844 | ||
c5aa9e3b LT |
1845 | /* Set OWN bit */ |
1846 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, OWN, 1); | |
1847 | ||
1848 | /* Mark it as NORMAL descriptor */ | |
1849 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, CTXT, 0); | |
1850 | ||
1851 | /* Enable HW CSUM */ | |
1852 | if (csum) | |
1853 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, | |
1854 | CIC, 0x3); | |
1855 | } | |
1856 | ||
1857 | /* Set LAST bit for the last descriptor */ | |
1858 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, LD, 1); | |
1859 | ||
eb79e640 LT |
1860 | /* Set IC bit based on Tx coalescing settings */ |
1861 | if (tx_set_ic) | |
1862 | XGMAC_SET_BITS_LE(rdesc->desc2, TX_NORMAL_DESC2, IC, 1); | |
1863 | ||
5fb4b86a | 1864 | /* Save the Tx info to report back during cleanup */ |
80a788c9 LT |
1865 | rdata->tx.packets = tx_packets; |
1866 | rdata->tx.bytes = tx_bytes; | |
1867 | ||
1868 | pdata->ext_stats.txq_packets[channel->queue_index] += tx_packets; | |
1869 | pdata->ext_stats.txq_bytes[channel->queue_index] += tx_bytes; | |
5fb4b86a | 1870 | |
c5aa9e3b LT |
1871 | /* In case the Tx DMA engine is running, make sure everything |
1872 | * is written to the descriptor(s) before setting the OWN bit | |
1873 | * for the first descriptor | |
1874 | */ | |
ceb8f6be | 1875 | dma_wmb(); |
c5aa9e3b LT |
1876 | |
1877 | /* Set OWN bit for the first descriptor */ | |
d0a8ba6c | 1878 | rdata = XGBE_GET_DESC_DATA(ring, start_index); |
c5aa9e3b LT |
1879 | rdesc = rdata->rdesc; |
1880 | XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, OWN, 1); | |
1881 | ||
34bf65df LT |
1882 | if (netif_msg_tx_queued(pdata)) |
1883 | xgbe_dump_tx_desc(pdata, ring, start_index, | |
1884 | packet->rdesc_count, 1); | |
c5aa9e3b LT |
1885 | |
1886 | /* Make sure ownership is written to the descriptor */ | |
20986ed8 | 1887 | smp_wmb(); |
c5aa9e3b | 1888 | |
a83ef427 | 1889 | ring->cur = cur_index + 1; |
6b16f9ee | 1890 | if (!netdev_xmit_more() || |
16958a2b LT |
1891 | netif_xmit_stopped(netdev_get_tx_queue(pdata->netdev, |
1892 | channel->queue_index))) | |
1893 | xgbe_tx_start_xmit(channel, ring); | |
1894 | else | |
1895 | ring->tx.xmit_more = 1; | |
c5aa9e3b LT |
1896 | |
1897 | DBGPR(" %s: descriptors %u to %u written\n", | |
1898 | channel->name, start_index & (ring->rdesc_count - 1), | |
1899 | (ring->cur - 1) & (ring->rdesc_count - 1)); | |
1900 | ||
a9d41981 | 1901 | DBGPR("<--xgbe_dev_xmit\n"); |
c5aa9e3b LT |
1902 | } |
1903 | ||
1904 | static int xgbe_dev_read(struct xgbe_channel *channel) | |
1905 | { | |
5452b2df | 1906 | struct xgbe_prv_data *pdata = channel->pdata; |
c5aa9e3b LT |
1907 | struct xgbe_ring *ring = channel->rx_ring; |
1908 | struct xgbe_ring_data *rdata; | |
1909 | struct xgbe_ring_desc *rdesc; | |
1910 | struct xgbe_packet_data *packet = &ring->packet_data; | |
5452b2df | 1911 | struct net_device *netdev = pdata->netdev; |
5b9dfe29 | 1912 | unsigned int err, etlt, l34t; |
c5aa9e3b LT |
1913 | |
1914 | DBGPR("-->xgbe_dev_read: cur = %d\n", ring->cur); | |
1915 | ||
d0a8ba6c | 1916 | rdata = XGBE_GET_DESC_DATA(ring, ring->cur); |
c5aa9e3b LT |
1917 | rdesc = rdata->rdesc; |
1918 | ||
1919 | /* Check for data availability */ | |
1920 | if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, OWN)) | |
1921 | return 1; | |
1922 | ||
5449e271 | 1923 | /* Make sure descriptor fields are read after reading the OWN bit */ |
ceb8f6be | 1924 | dma_rmb(); |
5449e271 | 1925 | |
34bf65df LT |
1926 | if (netif_msg_rx_status(pdata)) |
1927 | xgbe_dump_rx_desc(pdata, ring, ring->cur); | |
c5aa9e3b | 1928 | |
23e4eef7 LT |
1929 | if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, CTXT)) { |
1930 | /* Timestamp Context Descriptor */ | |
1931 | xgbe_get_rx_tstamp(packet, rdesc); | |
1932 | ||
1933 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, | |
1934 | CONTEXT, 1); | |
1935 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, | |
1936 | CONTEXT_NEXT, 0); | |
1937 | return 0; | |
1938 | } | |
1939 | ||
1940 | /* Normal Descriptor, be sure Context Descriptor bit is off */ | |
1941 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, CONTEXT, 0); | |
1942 | ||
1943 | /* Indicate if a Context Descriptor is next */ | |
1944 | if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, CDA)) | |
1945 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, | |
1946 | CONTEXT_NEXT, 1); | |
1947 | ||
174fd259 | 1948 | /* Get the header length */ |
5452b2df | 1949 | if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, FD)) { |
622c36f1 LT |
1950 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, |
1951 | FIRST, 1); | |
c9f140eb LT |
1952 | rdata->rx.hdr_len = XGMAC_GET_BITS_LE(rdesc->desc2, |
1953 | RX_NORMAL_DESC2, HL); | |
5452b2df LT |
1954 | if (rdata->rx.hdr_len) |
1955 | pdata->ext_stats.rx_split_header_packets++; | |
622c36f1 LT |
1956 | } else { |
1957 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, | |
1958 | FIRST, 0); | |
5452b2df | 1959 | } |
174fd259 | 1960 | |
5b9dfe29 LT |
1961 | /* Get the RSS hash */ |
1962 | if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, RSV)) { | |
1963 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, | |
1964 | RSS_HASH, 1); | |
1965 | ||
1966 | packet->rss_hash = le32_to_cpu(rdesc->desc1); | |
1967 | ||
1968 | l34t = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, L34T); | |
1969 | switch (l34t) { | |
1970 | case RX_DESC3_L34T_IPV4_TCP: | |
1971 | case RX_DESC3_L34T_IPV4_UDP: | |
1972 | case RX_DESC3_L34T_IPV6_TCP: | |
1973 | case RX_DESC3_L34T_IPV6_UDP: | |
1974 | packet->rss_hash_type = PKT_HASH_TYPE_L4; | |
b6267d3e | 1975 | break; |
5b9dfe29 LT |
1976 | default: |
1977 | packet->rss_hash_type = PKT_HASH_TYPE_L3; | |
1978 | } | |
1979 | } | |
1980 | ||
622c36f1 LT |
1981 | /* Not all the data has been transferred for this packet */ |
1982 | if (!XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, LD)) | |
c5aa9e3b | 1983 | return 0; |
c5aa9e3b LT |
1984 | |
1985 | /* This is the last of the data for this packet */ | |
1986 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, | |
622c36f1 LT |
1987 | LAST, 1); |
1988 | ||
1989 | /* Get the packet length */ | |
1990 | rdata->rx.len = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, PL); | |
c5aa9e3b LT |
1991 | |
1992 | /* Set checksum done indicator as appropriate */ | |
1a510ccf | 1993 | if (netdev->features & NETIF_F_RXCSUM) { |
c5aa9e3b LT |
1994 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, |
1995 | CSUM_DONE, 1); | |
1a510ccf LT |
1996 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, |
1997 | TNPCSUM_DONE, 1); | |
1998 | } | |
1999 | ||
2000 | /* Set the tunneled packet indicator */ | |
2001 | if (XGMAC_GET_BITS_LE(rdesc->desc2, RX_NORMAL_DESC2, TNP)) { | |
2002 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, | |
2003 | TNP, 1); | |
3010608d | 2004 | pdata->ext_stats.rx_vxlan_packets++; |
1a510ccf LT |
2005 | |
2006 | l34t = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, L34T); | |
2007 | switch (l34t) { | |
2008 | case RX_DESC3_L34T_IPV4_UNKNOWN: | |
2009 | case RX_DESC3_L34T_IPV6_UNKNOWN: | |
2010 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, | |
2011 | TNPCSUM_DONE, 0); | |
2012 | break; | |
2013 | } | |
2014 | } | |
c5aa9e3b LT |
2015 | |
2016 | /* Check for errors (only valid in last descriptor) */ | |
2017 | err = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, ES); | |
2018 | etlt = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, ETLT); | |
34bf65df | 2019 | netif_dbg(pdata, rx_status, netdev, "err=%u, etlt=%#x\n", err, etlt); |
c5aa9e3b | 2020 | |
7bba35bd LT |
2021 | if (!err || !etlt) { |
2022 | /* No error if err is 0 or etlt is 0 */ | |
c52e9c63 LT |
2023 | if ((etlt == 0x09) && |
2024 | (netdev->features & NETIF_F_HW_VLAN_CTAG_RX)) { | |
c5aa9e3b LT |
2025 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, |
2026 | VLAN_CTAG, 1); | |
2027 | packet->vlan_ctag = XGMAC_GET_BITS_LE(rdesc->desc0, | |
2028 | RX_NORMAL_DESC0, | |
2029 | OVT); | |
34bf65df LT |
2030 | netif_dbg(pdata, rx_status, netdev, "vlan-ctag=%#06x\n", |
2031 | packet->vlan_ctag); | |
c5aa9e3b LT |
2032 | } |
2033 | } else { | |
1a510ccf LT |
2034 | unsigned int tnp = XGMAC_GET_BITS(packet->attributes, |
2035 | RX_PACKET_ATTRIBUTES, TNP); | |
2036 | ||
2037 | if ((etlt == 0x05) || (etlt == 0x06)) { | |
c5aa9e3b LT |
2038 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, |
2039 | CSUM_DONE, 0); | |
1a510ccf LT |
2040 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, |
2041 | TNPCSUM_DONE, 0); | |
3010608d | 2042 | pdata->ext_stats.rx_csum_errors++; |
1a510ccf LT |
2043 | } else if (tnp && ((etlt == 0x09) || (etlt == 0x0a))) { |
2044 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, | |
2045 | CSUM_DONE, 0); | |
2046 | XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, | |
2047 | TNPCSUM_DONE, 0); | |
3010608d | 2048 | pdata->ext_stats.rx_vxlan_csum_errors++; |
1a510ccf | 2049 | } else { |
c5aa9e3b LT |
2050 | XGMAC_SET_BITS(packet->errors, RX_PACKET_ERRORS, |
2051 | FRAME, 1); | |
1a510ccf | 2052 | } |
c5aa9e3b LT |
2053 | } |
2054 | ||
80a788c9 LT |
2055 | pdata->ext_stats.rxq_packets[channel->queue_index]++; |
2056 | pdata->ext_stats.rxq_bytes[channel->queue_index] += rdata->rx.len; | |
2057 | ||
c5aa9e3b LT |
2058 | DBGPR("<--xgbe_dev_read: %s - descriptor=%u (cur=%d)\n", channel->name, |
2059 | ring->cur & (ring->rdesc_count - 1), ring->cur); | |
2060 | ||
2061 | return 0; | |
2062 | } | |
2063 | ||
2064 | static int xgbe_is_context_desc(struct xgbe_ring_desc *rdesc) | |
2065 | { | |
2066 | /* Rx and Tx share CTXT bit, so check TDES3.CTXT bit */ | |
2067 | return XGMAC_GET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, CTXT); | |
2068 | } | |
2069 | ||
2070 | static int xgbe_is_last_desc(struct xgbe_ring_desc *rdesc) | |
2071 | { | |
2072 | /* Rx and Tx share LD bit, so check TDES3.LD bit */ | |
2073 | return XGMAC_GET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, LD); | |
2074 | } | |
2075 | ||
9867e8fb LT |
2076 | static int xgbe_enable_int(struct xgbe_channel *channel, |
2077 | enum xgbe_int int_id) | |
c5aa9e3b | 2078 | { |
c5aa9e3b | 2079 | switch (int_id) { |
c5aa9e3b | 2080 | case XGMAC_INT_DMA_CH_SR_TI: |
caa575af | 2081 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TIE, 1); |
c5aa9e3b LT |
2082 | break; |
2083 | case XGMAC_INT_DMA_CH_SR_TPS: | |
caa575af | 2084 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TXSE, 1); |
c5aa9e3b LT |
2085 | break; |
2086 | case XGMAC_INT_DMA_CH_SR_TBU: | |
caa575af | 2087 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TBUE, 1); |
c5aa9e3b LT |
2088 | break; |
2089 | case XGMAC_INT_DMA_CH_SR_RI: | |
caa575af | 2090 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RIE, 1); |
c5aa9e3b LT |
2091 | break; |
2092 | case XGMAC_INT_DMA_CH_SR_RBU: | |
caa575af | 2093 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RBUE, 1); |
c5aa9e3b LT |
2094 | break; |
2095 | case XGMAC_INT_DMA_CH_SR_RPS: | |
caa575af | 2096 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RSE, 1); |
9867e8fb LT |
2097 | break; |
2098 | case XGMAC_INT_DMA_CH_SR_TI_RI: | |
caa575af LT |
2099 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TIE, 1); |
2100 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RIE, 1); | |
c5aa9e3b LT |
2101 | break; |
2102 | case XGMAC_INT_DMA_CH_SR_FBE: | |
caa575af | 2103 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, FBEE, 1); |
c5aa9e3b LT |
2104 | break; |
2105 | case XGMAC_INT_DMA_ALL: | |
caa575af | 2106 | channel->curr_ier |= channel->saved_ier; |
c5aa9e3b LT |
2107 | break; |
2108 | default: | |
2109 | return -1; | |
2110 | } | |
2111 | ||
caa575af | 2112 | XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, channel->curr_ier); |
9867e8fb | 2113 | |
c5aa9e3b LT |
2114 | return 0; |
2115 | } | |
2116 | ||
2117 | static int xgbe_disable_int(struct xgbe_channel *channel, | |
2118 | enum xgbe_int int_id) | |
2119 | { | |
c5aa9e3b | 2120 | switch (int_id) { |
c5aa9e3b | 2121 | case XGMAC_INT_DMA_CH_SR_TI: |
caa575af | 2122 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TIE, 0); |
c5aa9e3b LT |
2123 | break; |
2124 | case XGMAC_INT_DMA_CH_SR_TPS: | |
caa575af | 2125 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TXSE, 0); |
c5aa9e3b LT |
2126 | break; |
2127 | case XGMAC_INT_DMA_CH_SR_TBU: | |
caa575af | 2128 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TBUE, 0); |
c5aa9e3b LT |
2129 | break; |
2130 | case XGMAC_INT_DMA_CH_SR_RI: | |
caa575af | 2131 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RIE, 0); |
c5aa9e3b LT |
2132 | break; |
2133 | case XGMAC_INT_DMA_CH_SR_RBU: | |
caa575af | 2134 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RBUE, 0); |
c5aa9e3b LT |
2135 | break; |
2136 | case XGMAC_INT_DMA_CH_SR_RPS: | |
caa575af | 2137 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RSE, 0); |
9867e8fb LT |
2138 | break; |
2139 | case XGMAC_INT_DMA_CH_SR_TI_RI: | |
caa575af LT |
2140 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, TIE, 0); |
2141 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, RIE, 0); | |
c5aa9e3b LT |
2142 | break; |
2143 | case XGMAC_INT_DMA_CH_SR_FBE: | |
caa575af | 2144 | XGMAC_SET_BITS(channel->curr_ier, DMA_CH_IER, FBEE, 0); |
c5aa9e3b LT |
2145 | break; |
2146 | case XGMAC_INT_DMA_ALL: | |
caa575af LT |
2147 | channel->saved_ier = channel->curr_ier; |
2148 | channel->curr_ier = 0; | |
c5aa9e3b LT |
2149 | break; |
2150 | default: | |
2151 | return -1; | |
2152 | } | |
2153 | ||
caa575af | 2154 | XGMAC_DMA_IOWRITE(channel, DMA_CH_IER, channel->curr_ier); |
9867e8fb | 2155 | |
c5aa9e3b LT |
2156 | return 0; |
2157 | } | |
2158 | ||
5ffc0335 | 2159 | static int __xgbe_exit(struct xgbe_prv_data *pdata) |
c5aa9e3b LT |
2160 | { |
2161 | unsigned int count = 2000; | |
2162 | ||
2163 | DBGPR("-->xgbe_exit\n"); | |
2164 | ||
2165 | /* Issue a software reset */ | |
2166 | XGMAC_IOWRITE_BITS(pdata, DMA_MR, SWR, 1); | |
2167 | usleep_range(10, 15); | |
2168 | ||
2169 | /* Poll Until Poll Condition */ | |
c7557e6a | 2170 | while (--count && XGMAC_IOREAD_BITS(pdata, DMA_MR, SWR)) |
c5aa9e3b LT |
2171 | usleep_range(500, 600); |
2172 | ||
2173 | if (!count) | |
2174 | return -EBUSY; | |
2175 | ||
2176 | DBGPR("<--xgbe_exit\n"); | |
2177 | ||
2178 | return 0; | |
2179 | } | |
2180 | ||
5ffc0335 LT |
2181 | static int xgbe_exit(struct xgbe_prv_data *pdata) |
2182 | { | |
2183 | int ret; | |
2184 | ||
2185 | /* To guard against possible incorrectly generated interrupts, | |
2186 | * issue the software reset twice. | |
2187 | */ | |
2188 | ret = __xgbe_exit(pdata); | |
2189 | if (ret) | |
2190 | return ret; | |
2191 | ||
2192 | return __xgbe_exit(pdata); | |
2193 | } | |
2194 | ||
c5aa9e3b LT |
2195 | static int xgbe_flush_tx_queues(struct xgbe_prv_data *pdata) |
2196 | { | |
2197 | unsigned int i, count; | |
2198 | ||
a9a4a2d9 LT |
2199 | if (XGMAC_GET_BITS(pdata->hw_feat.version, MAC_VR, SNPSVER) < 0x21) |
2200 | return 0; | |
2201 | ||
853eb16b | 2202 | for (i = 0; i < pdata->tx_q_count; i++) |
c5aa9e3b LT |
2203 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, FTQ, 1); |
2204 | ||
2205 | /* Poll Until Poll Condition */ | |
853eb16b | 2206 | for (i = 0; i < pdata->tx_q_count; i++) { |
c5aa9e3b | 2207 | count = 2000; |
c7557e6a | 2208 | while (--count && XGMAC_MTL_IOREAD_BITS(pdata, i, |
c5aa9e3b LT |
2209 | MTL_Q_TQOMR, FTQ)) |
2210 | usleep_range(500, 600); | |
2211 | ||
2212 | if (!count) | |
2213 | return -EBUSY; | |
2214 | } | |
2215 | ||
2216 | return 0; | |
2217 | } | |
2218 | ||
2219 | static void xgbe_config_dma_bus(struct xgbe_prv_data *pdata) | |
2220 | { | |
6f595959 LT |
2221 | unsigned int sbmr; |
2222 | ||
2223 | sbmr = XGMAC_IOREAD(pdata, DMA_SBMR); | |
2224 | ||
c5aa9e3b | 2225 | /* Set enhanced addressing mode */ |
6f595959 | 2226 | XGMAC_SET_BITS(sbmr, DMA_SBMR, EAME, 1); |
c5aa9e3b LT |
2227 | |
2228 | /* Set the System Bus mode */ | |
6f595959 LT |
2229 | XGMAC_SET_BITS(sbmr, DMA_SBMR, UNDEF, 1); |
2230 | XGMAC_SET_BITS(sbmr, DMA_SBMR, BLEN, pdata->blen >> 2); | |
2231 | XGMAC_SET_BITS(sbmr, DMA_SBMR, AAL, pdata->aal); | |
2232 | XGMAC_SET_BITS(sbmr, DMA_SBMR, RD_OSR_LMT, pdata->rd_osr_limit - 1); | |
2233 | XGMAC_SET_BITS(sbmr, DMA_SBMR, WR_OSR_LMT, pdata->wr_osr_limit - 1); | |
2234 | ||
2235 | XGMAC_IOWRITE(pdata, DMA_SBMR, sbmr); | |
2236 | ||
2237 | /* Set descriptor fetching threshold */ | |
2238 | if (pdata->vdata->tx_desc_prefetch) | |
2239 | XGMAC_IOWRITE_BITS(pdata, DMA_TXEDMACR, TDPS, | |
2240 | pdata->vdata->tx_desc_prefetch); | |
2241 | ||
2242 | if (pdata->vdata->rx_desc_prefetch) | |
2243 | XGMAC_IOWRITE_BITS(pdata, DMA_RXEDMACR, RDPS, | |
2244 | pdata->vdata->rx_desc_prefetch); | |
c5aa9e3b LT |
2245 | } |
2246 | ||
2247 | static void xgbe_config_dma_cache(struct xgbe_prv_data *pdata) | |
2248 | { | |
9916716a LT |
2249 | XGMAC_IOWRITE(pdata, DMA_AXIARCR, pdata->arcr); |
2250 | XGMAC_IOWRITE(pdata, DMA_AXIAWCR, pdata->awcr); | |
6f595959 LT |
2251 | if (pdata->awarcr) |
2252 | XGMAC_IOWRITE(pdata, DMA_AXIAWARCR, pdata->awarcr); | |
c5aa9e3b LT |
2253 | } |
2254 | ||
2255 | static void xgbe_config_mtl_mode(struct xgbe_prv_data *pdata) | |
2256 | { | |
2257 | unsigned int i; | |
2258 | ||
fca2d994 | 2259 | /* Set Tx to weighted round robin scheduling algorithm */ |
c5aa9e3b LT |
2260 | XGMAC_IOWRITE_BITS(pdata, MTL_OMR, ETSALG, MTL_ETSALG_WRR); |
2261 | ||
fca2d994 LT |
2262 | /* Set Tx traffic classes to use WRR algorithm with equal weights */ |
2263 | for (i = 0; i < pdata->hw_feat.tc_cnt; i++) { | |
2264 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_ETSCR, TSA, | |
2265 | MTL_TSA_ETS); | |
2266 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_QWR, QW, 1); | |
2267 | } | |
c5aa9e3b LT |
2268 | |
2269 | /* Set Rx to strict priority algorithm */ | |
2270 | XGMAC_IOWRITE_BITS(pdata, MTL_OMR, RAA, MTL_RAA_SP); | |
2271 | } | |
2272 | ||
43e0dcf7 LT |
2273 | static void xgbe_queue_flow_control_threshold(struct xgbe_prv_data *pdata, |
2274 | unsigned int queue, | |
2275 | unsigned int q_fifo_size) | |
2276 | { | |
2277 | unsigned int frame_fifo_size; | |
2278 | unsigned int rfa, rfd; | |
2279 | ||
2280 | frame_fifo_size = XGMAC_FLOW_CONTROL_ALIGN(xgbe_get_max_frame(pdata)); | |
2281 | ||
2282 | if (pdata->pfcq[queue] && (q_fifo_size > pdata->pfc_rfa)) { | |
2283 | /* PFC is active for this queue */ | |
2284 | rfa = pdata->pfc_rfa; | |
2285 | rfd = rfa + frame_fifo_size; | |
2286 | if (rfd > XGMAC_FLOW_CONTROL_MAX) | |
2287 | rfd = XGMAC_FLOW_CONTROL_MAX; | |
2288 | if (rfa >= XGMAC_FLOW_CONTROL_MAX) | |
2289 | rfa = XGMAC_FLOW_CONTROL_MAX - XGMAC_FLOW_CONTROL_UNIT; | |
2290 | } else { | |
2291 | /* This path deals with just maximum frame sizes which are | |
2292 | * limited to a jumbo frame of 9,000 (plus headers, etc.) | |
2293 | * so we can never exceed the maximum allowable RFA/RFD | |
2294 | * values. | |
2295 | */ | |
2296 | if (q_fifo_size <= 2048) { | |
2297 | /* rx_rfd to zero to signal no flow control */ | |
2298 | pdata->rx_rfa[queue] = 0; | |
2299 | pdata->rx_rfd[queue] = 0; | |
2300 | return; | |
2301 | } | |
2302 | ||
2303 | if (q_fifo_size <= 4096) { | |
2304 | /* Between 2048 and 4096 */ | |
2305 | pdata->rx_rfa[queue] = 0; /* Full - 1024 bytes */ | |
2306 | pdata->rx_rfd[queue] = 1; /* Full - 1536 bytes */ | |
2307 | return; | |
2308 | } | |
2309 | ||
2310 | if (q_fifo_size <= frame_fifo_size) { | |
2311 | /* Between 4096 and max-frame */ | |
2312 | pdata->rx_rfa[queue] = 2; /* Full - 2048 bytes */ | |
2313 | pdata->rx_rfd[queue] = 5; /* Full - 3584 bytes */ | |
2314 | return; | |
2315 | } | |
2316 | ||
2317 | if (q_fifo_size <= (frame_fifo_size * 3)) { | |
2318 | /* Between max-frame and 3 max-frames, | |
2319 | * trigger if we get just over a frame of data and | |
2320 | * resume when we have just under half a frame left. | |
2321 | */ | |
2322 | rfa = q_fifo_size - frame_fifo_size; | |
2323 | rfd = rfa + (frame_fifo_size / 2); | |
2324 | } else { | |
2325 | /* Above 3 max-frames - trigger when just over | |
2326 | * 2 frames of space available | |
2327 | */ | |
2328 | rfa = frame_fifo_size * 2; | |
2329 | rfa += XGMAC_FLOW_CONTROL_UNIT; | |
2330 | rfd = rfa + frame_fifo_size; | |
2331 | } | |
2332 | } | |
2333 | ||
2334 | pdata->rx_rfa[queue] = XGMAC_FLOW_CONTROL_VALUE(rfa); | |
2335 | pdata->rx_rfd[queue] = XGMAC_FLOW_CONTROL_VALUE(rfd); | |
2336 | } | |
2337 | ||
2338 | static void xgbe_calculate_flow_control_threshold(struct xgbe_prv_data *pdata, | |
2339 | unsigned int *fifo) | |
2340 | { | |
2341 | unsigned int q_fifo_size; | |
2342 | unsigned int i; | |
2343 | ||
2344 | for (i = 0; i < pdata->rx_q_count; i++) { | |
2345 | q_fifo_size = (fifo[i] + 1) * XGMAC_FIFO_UNIT; | |
2346 | ||
2347 | xgbe_queue_flow_control_threshold(pdata, i, q_fifo_size); | |
2348 | } | |
2349 | } | |
2350 | ||
2351 | static void xgbe_config_flow_control_threshold(struct xgbe_prv_data *pdata) | |
2352 | { | |
2353 | unsigned int i; | |
2354 | ||
2355 | for (i = 0; i < pdata->rx_q_count; i++) { | |
2356 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQFCR, RFA, | |
2357 | pdata->rx_rfa[i]); | |
2358 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQFCR, RFD, | |
2359 | pdata->rx_rfd[i]); | |
2360 | } | |
2361 | } | |
2362 | ||
586e3cfb | 2363 | static unsigned int xgbe_get_tx_fifo_size(struct xgbe_prv_data *pdata) |
c5aa9e3b | 2364 | { |
9c439e4b | 2365 | /* The configured value may not be the actual amount of fifo RAM */ |
bd8255d8 LT |
2366 | return min_t(unsigned int, pdata->tx_max_fifo_size, |
2367 | pdata->hw_feat.tx_fifo_size); | |
586e3cfb LT |
2368 | } |
2369 | ||
2370 | static unsigned int xgbe_get_rx_fifo_size(struct xgbe_prv_data *pdata) | |
2371 | { | |
586e3cfb | 2372 | /* The configured value may not be the actual amount of fifo RAM */ |
bd8255d8 LT |
2373 | return min_t(unsigned int, pdata->rx_max_fifo_size, |
2374 | pdata->hw_feat.rx_fifo_size); | |
586e3cfb LT |
2375 | } |
2376 | ||
2377 | static void xgbe_calculate_equal_fifo(unsigned int fifo_size, | |
2378 | unsigned int queue_count, | |
2379 | unsigned int *fifo) | |
2380 | { | |
2381 | unsigned int q_fifo_size; | |
2382 | unsigned int p_fifo; | |
2383 | unsigned int i; | |
2384 | ||
2385 | q_fifo_size = fifo_size / queue_count; | |
c5aa9e3b | 2386 | |
43e0dcf7 LT |
2387 | /* Calculate the fifo setting by dividing the queue's fifo size |
2388 | * by the fifo allocation increment (with 0 representing the | |
2389 | * base allocation increment so decrement the result by 1). | |
9c439e4b | 2390 | */ |
43e0dcf7 | 2391 | p_fifo = q_fifo_size / XGMAC_FIFO_UNIT; |
9c439e4b LT |
2392 | if (p_fifo) |
2393 | p_fifo--; | |
c5aa9e3b | 2394 | |
43e0dcf7 | 2395 | /* Distribute the fifo equally amongst the queues */ |
586e3cfb LT |
2396 | for (i = 0; i < queue_count; i++) |
2397 | fifo[i] = p_fifo; | |
c5aa9e3b LT |
2398 | } |
2399 | ||
43e0dcf7 LT |
2400 | static unsigned int xgbe_set_nonprio_fifos(unsigned int fifo_size, |
2401 | unsigned int queue_count, | |
2402 | unsigned int *fifo) | |
2403 | { | |
2404 | unsigned int i; | |
2405 | ||
2406 | BUILD_BUG_ON_NOT_POWER_OF_2(XGMAC_FIFO_MIN_ALLOC); | |
2407 | ||
2408 | if (queue_count <= IEEE_8021QAZ_MAX_TCS) | |
2409 | return fifo_size; | |
2410 | ||
2411 | /* Rx queues 9 and up are for specialized packets, | |
2412 | * such as PTP or DCB control packets, etc. and | |
2413 | * don't require a large fifo | |
2414 | */ | |
2415 | for (i = IEEE_8021QAZ_MAX_TCS; i < queue_count; i++) { | |
2416 | fifo[i] = (XGMAC_FIFO_MIN_ALLOC / XGMAC_FIFO_UNIT) - 1; | |
2417 | fifo_size -= XGMAC_FIFO_MIN_ALLOC; | |
2418 | } | |
2419 | ||
2420 | return fifo_size; | |
2421 | } | |
2422 | ||
2423 | static unsigned int xgbe_get_pfc_delay(struct xgbe_prv_data *pdata) | |
2424 | { | |
2425 | unsigned int delay; | |
2426 | ||
2427 | /* If a delay has been provided, use that */ | |
2428 | if (pdata->pfc->delay) | |
2429 | return pdata->pfc->delay / 8; | |
2430 | ||
2431 | /* Allow for two maximum size frames */ | |
2432 | delay = xgbe_get_max_frame(pdata); | |
2433 | delay += XGMAC_ETH_PREAMBLE; | |
2434 | delay *= 2; | |
2435 | ||
2436 | /* Allow for PFC frame */ | |
2437 | delay += XGMAC_PFC_DATA_LEN; | |
2438 | delay += ETH_HLEN + ETH_FCS_LEN; | |
2439 | delay += XGMAC_ETH_PREAMBLE; | |
2440 | ||
2441 | /* Allow for miscellaneous delays (LPI exit, cable, etc.) */ | |
2442 | delay += XGMAC_PFC_DELAYS; | |
2443 | ||
2444 | return delay; | |
2445 | } | |
2446 | ||
2447 | static unsigned int xgbe_get_pfc_queues(struct xgbe_prv_data *pdata) | |
2448 | { | |
2449 | unsigned int count, prio_queues; | |
2450 | unsigned int i; | |
2451 | ||
2452 | if (!pdata->pfc->pfc_en) | |
2453 | return 0; | |
2454 | ||
2455 | count = 0; | |
2456 | prio_queues = XGMAC_PRIO_QUEUES(pdata->rx_q_count); | |
2457 | for (i = 0; i < prio_queues; i++) { | |
2458 | if (!xgbe_is_pfc_queue(pdata, i)) | |
2459 | continue; | |
2460 | ||
2461 | pdata->pfcq[i] = 1; | |
2462 | count++; | |
2463 | } | |
2464 | ||
2465 | return count; | |
2466 | } | |
2467 | ||
2468 | static void xgbe_calculate_dcb_fifo(struct xgbe_prv_data *pdata, | |
2469 | unsigned int fifo_size, | |
2470 | unsigned int *fifo) | |
2471 | { | |
2472 | unsigned int q_fifo_size, rem_fifo, addn_fifo; | |
2473 | unsigned int prio_queues; | |
2474 | unsigned int pfc_count; | |
2475 | unsigned int i; | |
2476 | ||
2477 | q_fifo_size = XGMAC_FIFO_ALIGN(xgbe_get_max_frame(pdata)); | |
2478 | prio_queues = XGMAC_PRIO_QUEUES(pdata->rx_q_count); | |
2479 | pfc_count = xgbe_get_pfc_queues(pdata); | |
2480 | ||
2481 | if (!pfc_count || ((q_fifo_size * prio_queues) > fifo_size)) { | |
2482 | /* No traffic classes with PFC enabled or can't do lossless */ | |
2483 | xgbe_calculate_equal_fifo(fifo_size, prio_queues, fifo); | |
2484 | return; | |
2485 | } | |
2486 | ||
2487 | /* Calculate how much fifo we have to play with */ | |
2488 | rem_fifo = fifo_size - (q_fifo_size * prio_queues); | |
2489 | ||
2490 | /* Calculate how much more than base fifo PFC needs, which also | |
2491 | * becomes the threshold activation point (RFA) | |
2492 | */ | |
2493 | pdata->pfc_rfa = xgbe_get_pfc_delay(pdata); | |
2494 | pdata->pfc_rfa = XGMAC_FLOW_CONTROL_ALIGN(pdata->pfc_rfa); | |
2495 | ||
2496 | if (pdata->pfc_rfa > q_fifo_size) { | |
2497 | addn_fifo = pdata->pfc_rfa - q_fifo_size; | |
2498 | addn_fifo = XGMAC_FIFO_ALIGN(addn_fifo); | |
2499 | } else { | |
2500 | addn_fifo = 0; | |
2501 | } | |
2502 | ||
2503 | /* Calculate DCB fifo settings: | |
2504 | * - distribute remaining fifo between the VLAN priority | |
2505 | * queues based on traffic class PFC enablement and overall | |
2506 | * priority (0 is lowest priority, so start at highest) | |
2507 | */ | |
2508 | i = prio_queues; | |
2509 | while (i > 0) { | |
2510 | i--; | |
2511 | ||
2512 | fifo[i] = (q_fifo_size / XGMAC_FIFO_UNIT) - 1; | |
2513 | ||
2514 | if (!pdata->pfcq[i] || !addn_fifo) | |
2515 | continue; | |
2516 | ||
2517 | if (addn_fifo > rem_fifo) { | |
2518 | netdev_warn(pdata->netdev, | |
2519 | "RXq%u cannot set needed fifo size\n", i); | |
2520 | if (!rem_fifo) | |
2521 | continue; | |
2522 | ||
2523 | addn_fifo = rem_fifo; | |
2524 | } | |
2525 | ||
2526 | fifo[i] += (addn_fifo / XGMAC_FIFO_UNIT); | |
2527 | rem_fifo -= addn_fifo; | |
2528 | } | |
2529 | ||
2530 | if (rem_fifo) { | |
2531 | unsigned int inc_fifo = rem_fifo / prio_queues; | |
2532 | ||
2533 | /* Distribute remaining fifo across queues */ | |
2534 | for (i = 0; i < prio_queues; i++) | |
2535 | fifo[i] += (inc_fifo / XGMAC_FIFO_UNIT); | |
2536 | } | |
2537 | } | |
2538 | ||
c5aa9e3b LT |
2539 | static void xgbe_config_tx_fifo_size(struct xgbe_prv_data *pdata) |
2540 | { | |
9c439e4b | 2541 | unsigned int fifo_size; |
586e3cfb | 2542 | unsigned int fifo[XGBE_MAX_QUEUES]; |
c5aa9e3b LT |
2543 | unsigned int i; |
2544 | ||
586e3cfb LT |
2545 | fifo_size = xgbe_get_tx_fifo_size(pdata); |
2546 | ||
2547 | xgbe_calculate_equal_fifo(fifo_size, pdata->tx_q_count, fifo); | |
c5aa9e3b | 2548 | |
853eb16b | 2549 | for (i = 0; i < pdata->tx_q_count; i++) |
586e3cfb | 2550 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TQS, fifo[i]); |
c5aa9e3b | 2551 | |
34bf65df LT |
2552 | netif_info(pdata, drv, pdata->netdev, |
2553 | "%d Tx hardware queues, %d byte fifo per queue\n", | |
43e0dcf7 | 2554 | pdata->tx_q_count, ((fifo[0] + 1) * XGMAC_FIFO_UNIT)); |
c5aa9e3b LT |
2555 | } |
2556 | ||
2557 | static void xgbe_config_rx_fifo_size(struct xgbe_prv_data *pdata) | |
2558 | { | |
9c439e4b | 2559 | unsigned int fifo_size; |
586e3cfb | 2560 | unsigned int fifo[XGBE_MAX_QUEUES]; |
43e0dcf7 | 2561 | unsigned int prio_queues; |
c5aa9e3b LT |
2562 | unsigned int i; |
2563 | ||
43e0dcf7 LT |
2564 | /* Clear any DCB related fifo/queue information */ |
2565 | memset(pdata->pfcq, 0, sizeof(pdata->pfcq)); | |
2566 | pdata->pfc_rfa = 0; | |
2567 | ||
586e3cfb | 2568 | fifo_size = xgbe_get_rx_fifo_size(pdata); |
43e0dcf7 LT |
2569 | prio_queues = XGMAC_PRIO_QUEUES(pdata->rx_q_count); |
2570 | ||
2571 | /* Assign a minimum fifo to the non-VLAN priority queues */ | |
2572 | fifo_size = xgbe_set_nonprio_fifos(fifo_size, pdata->rx_q_count, fifo); | |
586e3cfb | 2573 | |
43e0dcf7 LT |
2574 | if (pdata->pfc && pdata->ets) |
2575 | xgbe_calculate_dcb_fifo(pdata, fifo_size, fifo); | |
2576 | else | |
2577 | xgbe_calculate_equal_fifo(fifo_size, prio_queues, fifo); | |
c5aa9e3b | 2578 | |
853eb16b | 2579 | for (i = 0; i < pdata->rx_q_count; i++) |
586e3cfb | 2580 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, RQS, fifo[i]); |
c5aa9e3b | 2581 | |
43e0dcf7 LT |
2582 | xgbe_calculate_flow_control_threshold(pdata, fifo); |
2583 | xgbe_config_flow_control_threshold(pdata); | |
2584 | ||
2585 | if (pdata->pfc && pdata->ets && pdata->pfc->pfc_en) { | |
2586 | netif_info(pdata, drv, pdata->netdev, | |
2587 | "%u Rx hardware queues\n", pdata->rx_q_count); | |
2588 | for (i = 0; i < pdata->rx_q_count; i++) | |
2589 | netif_info(pdata, drv, pdata->netdev, | |
2590 | "RxQ%u, %u byte fifo queue\n", i, | |
2591 | ((fifo[i] + 1) * XGMAC_FIFO_UNIT)); | |
2592 | } else { | |
2593 | netif_info(pdata, drv, pdata->netdev, | |
2594 | "%u Rx hardware queues, %u byte fifo per queue\n", | |
2595 | pdata->rx_q_count, | |
2596 | ((fifo[0] + 1) * XGMAC_FIFO_UNIT)); | |
2597 | } | |
c5aa9e3b LT |
2598 | } |
2599 | ||
fca2d994 | 2600 | static void xgbe_config_queue_mapping(struct xgbe_prv_data *pdata) |
c5aa9e3b | 2601 | { |
fca2d994 LT |
2602 | unsigned int qptc, qptc_extra, queue; |
2603 | unsigned int prio_queues; | |
2604 | unsigned int ppq, ppq_extra, prio; | |
2605 | unsigned int mask; | |
2606 | unsigned int i, j, reg, reg_val; | |
2607 | ||
2608 | /* Map the MTL Tx Queues to Traffic Classes | |
2609 | * Note: Tx Queues >= Traffic Classes | |
2610 | */ | |
2611 | qptc = pdata->tx_q_count / pdata->hw_feat.tc_cnt; | |
2612 | qptc_extra = pdata->tx_q_count % pdata->hw_feat.tc_cnt; | |
2613 | ||
2614 | for (i = 0, queue = 0; i < pdata->hw_feat.tc_cnt; i++) { | |
2615 | for (j = 0; j < qptc; j++) { | |
34bf65df LT |
2616 | netif_dbg(pdata, drv, pdata->netdev, |
2617 | "TXq%u mapped to TC%u\n", queue, i); | |
fca2d994 LT |
2618 | XGMAC_MTL_IOWRITE_BITS(pdata, queue, MTL_Q_TQOMR, |
2619 | Q2TCMAP, i); | |
2620 | pdata->q2tc_map[queue++] = i; | |
2621 | } | |
2622 | ||
2623 | if (i < qptc_extra) { | |
34bf65df LT |
2624 | netif_dbg(pdata, drv, pdata->netdev, |
2625 | "TXq%u mapped to TC%u\n", queue, i); | |
fca2d994 LT |
2626 | XGMAC_MTL_IOWRITE_BITS(pdata, queue, MTL_Q_TQOMR, |
2627 | Q2TCMAP, i); | |
2628 | pdata->q2tc_map[queue++] = i; | |
2629 | } | |
2630 | } | |
2631 | ||
2632 | /* Map the 8 VLAN priority values to available MTL Rx queues */ | |
43e0dcf7 | 2633 | prio_queues = XGMAC_PRIO_QUEUES(pdata->rx_q_count); |
fca2d994 LT |
2634 | ppq = IEEE_8021QAZ_MAX_TCS / prio_queues; |
2635 | ppq_extra = IEEE_8021QAZ_MAX_TCS % prio_queues; | |
2636 | ||
2637 | reg = MAC_RQC2R; | |
2638 | reg_val = 0; | |
2639 | for (i = 0, prio = 0; i < prio_queues;) { | |
2640 | mask = 0; | |
2641 | for (j = 0; j < ppq; j++) { | |
34bf65df LT |
2642 | netif_dbg(pdata, drv, pdata->netdev, |
2643 | "PRIO%u mapped to RXq%u\n", prio, i); | |
fca2d994 LT |
2644 | mask |= (1 << prio); |
2645 | pdata->prio2q_map[prio++] = i; | |
2646 | } | |
2647 | ||
2648 | if (i < ppq_extra) { | |
34bf65df LT |
2649 | netif_dbg(pdata, drv, pdata->netdev, |
2650 | "PRIO%u mapped to RXq%u\n", prio, i); | |
fca2d994 LT |
2651 | mask |= (1 << prio); |
2652 | pdata->prio2q_map[prio++] = i; | |
2653 | } | |
2654 | ||
2655 | reg_val |= (mask << ((i++ % MAC_RQC2_Q_PER_REG) << 3)); | |
2656 | ||
2657 | if ((i % MAC_RQC2_Q_PER_REG) && (i != prio_queues)) | |
2658 | continue; | |
2659 | ||
2660 | XGMAC_IOWRITE(pdata, reg, reg_val); | |
2661 | reg += MAC_RQC2_INC; | |
2662 | reg_val = 0; | |
2663 | } | |
c5aa9e3b LT |
2664 | |
2665 | /* Select dynamic mapping of MTL Rx queue to DMA Rx channel */ | |
2666 | reg = MTL_RQDCM0R; | |
2667 | reg_val = 0; | |
fca2d994 | 2668 | for (i = 0; i < pdata->rx_q_count;) { |
c5aa9e3b LT |
2669 | reg_val |= (0x80 << ((i++ % MTL_RQDCM_Q_PER_REG) << 3)); |
2670 | ||
fca2d994 | 2671 | if ((i % MTL_RQDCM_Q_PER_REG) && (i != pdata->rx_q_count)) |
c5aa9e3b LT |
2672 | continue; |
2673 | ||
2674 | XGMAC_IOWRITE(pdata, reg, reg_val); | |
2675 | ||
2676 | reg += MTL_RQDCM_INC; | |
2677 | reg_val = 0; | |
2678 | } | |
2679 | } | |
2680 | ||
43e0dcf7 | 2681 | static void xgbe_config_tc(struct xgbe_prv_data *pdata) |
c5aa9e3b | 2682 | { |
43e0dcf7 LT |
2683 | unsigned int offset, queue, prio; |
2684 | u8 i; | |
c5aa9e3b | 2685 | |
43e0dcf7 LT |
2686 | netdev_reset_tc(pdata->netdev); |
2687 | if (!pdata->num_tcs) | |
2688 | return; | |
2689 | ||
2690 | netdev_set_num_tc(pdata->netdev, pdata->num_tcs); | |
2691 | ||
2692 | for (i = 0, queue = 0, offset = 0; i < pdata->num_tcs; i++) { | |
2693 | while ((queue < pdata->tx_q_count) && | |
2694 | (pdata->q2tc_map[queue] == i)) | |
2695 | queue++; | |
2696 | ||
2697 | netif_dbg(pdata, drv, pdata->netdev, "TC%u using TXq%u-%u\n", | |
2698 | i, offset, queue - 1); | |
2699 | netdev_set_tc_queue(pdata->netdev, i, queue - offset, offset); | |
2700 | offset = queue; | |
2701 | } | |
2702 | ||
2703 | if (!pdata->ets) | |
2704 | return; | |
2705 | ||
2706 | for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; prio++) | |
2707 | netdev_set_prio_tc_map(pdata->netdev, prio, | |
2708 | pdata->ets->prio_tc[prio]); | |
2709 | } | |
2710 | ||
2711 | static void xgbe_config_dcb_tc(struct xgbe_prv_data *pdata) | |
2712 | { | |
2713 | struct ieee_ets *ets = pdata->ets; | |
2714 | unsigned int total_weight, min_weight, weight; | |
2715 | unsigned int mask, reg, reg_val; | |
2716 | unsigned int i, prio; | |
2717 | ||
2718 | if (!ets) | |
2719 | return; | |
2720 | ||
2721 | /* Set Tx to deficit weighted round robin scheduling algorithm (when | |
2722 | * traffic class is using ETS algorithm) | |
2723 | */ | |
2724 | XGMAC_IOWRITE_BITS(pdata, MTL_OMR, ETSALG, MTL_ETSALG_DWRR); | |
2725 | ||
2726 | /* Set Traffic Class algorithms */ | |
2727 | total_weight = pdata->netdev->mtu * pdata->hw_feat.tc_cnt; | |
2728 | min_weight = total_weight / 100; | |
2729 | if (!min_weight) | |
2730 | min_weight = 1; | |
2731 | ||
2732 | for (i = 0; i < pdata->hw_feat.tc_cnt; i++) { | |
2733 | /* Map the priorities to the traffic class */ | |
2734 | mask = 0; | |
2735 | for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; prio++) { | |
2736 | if (ets->prio_tc[prio] == i) | |
2737 | mask |= (1 << prio); | |
2738 | } | |
2739 | mask &= 0xff; | |
2740 | ||
2741 | netif_dbg(pdata, drv, pdata->netdev, "TC%u PRIO mask=%#x\n", | |
2742 | i, mask); | |
2743 | reg = MTL_TCPM0R + (MTL_TCPM_INC * (i / MTL_TCPM_TC_PER_REG)); | |
2744 | reg_val = XGMAC_IOREAD(pdata, reg); | |
c5aa9e3b | 2745 | |
43e0dcf7 LT |
2746 | reg_val &= ~(0xff << ((i % MTL_TCPM_TC_PER_REG) << 3)); |
2747 | reg_val |= (mask << ((i % MTL_TCPM_TC_PER_REG) << 3)); | |
2748 | ||
2749 | XGMAC_IOWRITE(pdata, reg, reg_val); | |
2750 | ||
2751 | /* Set the traffic class algorithm */ | |
2752 | switch (ets->tc_tsa[i]) { | |
2753 | case IEEE_8021QAZ_TSA_STRICT: | |
2754 | netif_dbg(pdata, drv, pdata->netdev, | |
2755 | "TC%u using SP\n", i); | |
2756 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_ETSCR, TSA, | |
2757 | MTL_TSA_SP); | |
2758 | break; | |
2759 | case IEEE_8021QAZ_TSA_ETS: | |
2760 | weight = total_weight * ets->tc_tx_bw[i] / 100; | |
2761 | weight = clamp(weight, min_weight, total_weight); | |
2762 | ||
2763 | netif_dbg(pdata, drv, pdata->netdev, | |
2764 | "TC%u using DWRR (weight %u)\n", i, weight); | |
2765 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_ETSCR, TSA, | |
2766 | MTL_TSA_ETS); | |
2767 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_QWR, QW, | |
2768 | weight); | |
2769 | break; | |
2770 | } | |
2771 | } | |
2772 | ||
2773 | xgbe_config_tc(pdata); | |
2774 | } | |
2775 | ||
2776 | static void xgbe_config_dcb_pfc(struct xgbe_prv_data *pdata) | |
2777 | { | |
2778 | if (!test_bit(XGBE_DOWN, &pdata->dev_state)) { | |
2779 | /* Just stop the Tx queues while Rx fifo is changed */ | |
2780 | netif_tx_stop_all_queues(pdata->netdev); | |
2781 | ||
2782 | /* Suspend Rx so that fifo's can be adjusted */ | |
2783 | pdata->hw_if.disable_rx(pdata); | |
2784 | } | |
2785 | ||
2786 | xgbe_config_rx_fifo_size(pdata); | |
2787 | xgbe_config_flow_control(pdata); | |
2788 | ||
2789 | if (!test_bit(XGBE_DOWN, &pdata->dev_state)) { | |
2790 | /* Resume Rx */ | |
2791 | pdata->hw_if.enable_rx(pdata); | |
2792 | ||
2793 | /* Resume Tx queues */ | |
2794 | netif_tx_start_all_queues(pdata->netdev); | |
c5aa9e3b LT |
2795 | } |
2796 | } | |
2797 | ||
2798 | static void xgbe_config_mac_address(struct xgbe_prv_data *pdata) | |
2799 | { | |
2800 | xgbe_set_mac_address(pdata, pdata->netdev->dev_addr); | |
b85e4d89 LT |
2801 | |
2802 | /* Filtering is done using perfect filtering and hash filtering */ | |
2803 | if (pdata->hw_feat.hash_table_size) { | |
2804 | XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HPF, 1); | |
2805 | XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HUC, 1); | |
2806 | XGMAC_IOWRITE_BITS(pdata, MAC_PFR, HMC, 1); | |
2807 | } | |
c5aa9e3b LT |
2808 | } |
2809 | ||
2810 | static void xgbe_config_jumbo_enable(struct xgbe_prv_data *pdata) | |
2811 | { | |
2812 | unsigned int val; | |
2813 | ||
2814 | val = (pdata->netdev->mtu > XGMAC_STD_PACKET_MTU) ? 1 : 0; | |
2815 | ||
2816 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, JE, val); | |
2817 | } | |
2818 | ||
916102c6 LT |
2819 | static void xgbe_config_mac_speed(struct xgbe_prv_data *pdata) |
2820 | { | |
e57f7a3f | 2821 | xgbe_set_speed(pdata, pdata->phy_speed); |
916102c6 LT |
2822 | } |
2823 | ||
c5aa9e3b LT |
2824 | static void xgbe_config_checksum_offload(struct xgbe_prv_data *pdata) |
2825 | { | |
2826 | if (pdata->netdev->features & NETIF_F_RXCSUM) | |
2827 | xgbe_enable_rx_csum(pdata); | |
2828 | else | |
2829 | xgbe_disable_rx_csum(pdata); | |
2830 | } | |
2831 | ||
2832 | static void xgbe_config_vlan_support(struct xgbe_prv_data *pdata) | |
2833 | { | |
6e5eed04 LT |
2834 | /* Indicate that VLAN Tx CTAGs come from context descriptors */ |
2835 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANIR, CSVL, 0); | |
2836 | XGMAC_IOWRITE_BITS(pdata, MAC_VLANIR, VLTI, 1); | |
2837 | ||
801c62d9 LT |
2838 | /* Set the current VLAN Hash Table register value */ |
2839 | xgbe_update_vlan_hash_table(pdata); | |
2840 | ||
2841 | if (pdata->netdev->features & NETIF_F_HW_VLAN_CTAG_FILTER) | |
2842 | xgbe_enable_rx_vlan_filtering(pdata); | |
2843 | else | |
2844 | xgbe_disable_rx_vlan_filtering(pdata); | |
2845 | ||
c5aa9e3b LT |
2846 | if (pdata->netdev->features & NETIF_F_HW_VLAN_CTAG_RX) |
2847 | xgbe_enable_rx_vlan_stripping(pdata); | |
2848 | else | |
2849 | xgbe_disable_rx_vlan_stripping(pdata); | |
2850 | } | |
2851 | ||
60265108 LT |
2852 | static u64 xgbe_mmc_read(struct xgbe_prv_data *pdata, unsigned int reg_lo) |
2853 | { | |
2854 | bool read_hi; | |
2855 | u64 val; | |
2856 | ||
e5a20b90 LT |
2857 | if (pdata->vdata->mmc_64bit) { |
2858 | switch (reg_lo) { | |
2859 | /* These registers are always 32 bit */ | |
2860 | case MMC_RXRUNTERROR: | |
2861 | case MMC_RXJABBERERROR: | |
2862 | case MMC_RXUNDERSIZE_G: | |
2863 | case MMC_RXOVERSIZE_G: | |
2864 | case MMC_RXWATCHDOGERROR: | |
2865 | read_hi = false; | |
2866 | break; | |
60265108 | 2867 | |
e5a20b90 LT |
2868 | default: |
2869 | read_hi = true; | |
2870 | } | |
2871 | } else { | |
2872 | switch (reg_lo) { | |
2873 | /* These registers are always 64 bit */ | |
2874 | case MMC_TXOCTETCOUNT_GB_LO: | |
2875 | case MMC_TXOCTETCOUNT_G_LO: | |
2876 | case MMC_RXOCTETCOUNT_GB_LO: | |
2877 | case MMC_RXOCTETCOUNT_G_LO: | |
2878 | read_hi = true; | |
2879 | break; | |
2880 | ||
2881 | default: | |
2882 | read_hi = false; | |
2883 | } | |
3947d78a | 2884 | } |
60265108 LT |
2885 | |
2886 | val = XGMAC_IOREAD(pdata, reg_lo); | |
2887 | ||
2888 | if (read_hi) | |
2889 | val |= ((u64)XGMAC_IOREAD(pdata, reg_lo + 4) << 32); | |
2890 | ||
2891 | return val; | |
2892 | } | |
2893 | ||
c5aa9e3b LT |
2894 | static void xgbe_tx_mmc_int(struct xgbe_prv_data *pdata) |
2895 | { | |
2896 | struct xgbe_mmc_stats *stats = &pdata->mmc_stats; | |
2897 | unsigned int mmc_isr = XGMAC_IOREAD(pdata, MMC_TISR); | |
2898 | ||
2899 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXOCTETCOUNT_GB)) | |
2900 | stats->txoctetcount_gb += | |
60265108 | 2901 | xgbe_mmc_read(pdata, MMC_TXOCTETCOUNT_GB_LO); |
c5aa9e3b LT |
2902 | |
2903 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXFRAMECOUNT_GB)) | |
2904 | stats->txframecount_gb += | |
60265108 | 2905 | xgbe_mmc_read(pdata, MMC_TXFRAMECOUNT_GB_LO); |
c5aa9e3b LT |
2906 | |
2907 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXBROADCASTFRAMES_G)) | |
2908 | stats->txbroadcastframes_g += | |
60265108 | 2909 | xgbe_mmc_read(pdata, MMC_TXBROADCASTFRAMES_G_LO); |
c5aa9e3b LT |
2910 | |
2911 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXMULTICASTFRAMES_G)) | |
2912 | stats->txmulticastframes_g += | |
60265108 | 2913 | xgbe_mmc_read(pdata, MMC_TXMULTICASTFRAMES_G_LO); |
c5aa9e3b LT |
2914 | |
2915 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX64OCTETS_GB)) | |
2916 | stats->tx64octets_gb += | |
60265108 | 2917 | xgbe_mmc_read(pdata, MMC_TX64OCTETS_GB_LO); |
c5aa9e3b LT |
2918 | |
2919 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX65TO127OCTETS_GB)) | |
2920 | stats->tx65to127octets_gb += | |
60265108 | 2921 | xgbe_mmc_read(pdata, MMC_TX65TO127OCTETS_GB_LO); |
c5aa9e3b LT |
2922 | |
2923 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX128TO255OCTETS_GB)) | |
2924 | stats->tx128to255octets_gb += | |
60265108 | 2925 | xgbe_mmc_read(pdata, MMC_TX128TO255OCTETS_GB_LO); |
c5aa9e3b LT |
2926 | |
2927 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX256TO511OCTETS_GB)) | |
2928 | stats->tx256to511octets_gb += | |
60265108 | 2929 | xgbe_mmc_read(pdata, MMC_TX256TO511OCTETS_GB_LO); |
c5aa9e3b LT |
2930 | |
2931 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX512TO1023OCTETS_GB)) | |
2932 | stats->tx512to1023octets_gb += | |
60265108 | 2933 | xgbe_mmc_read(pdata, MMC_TX512TO1023OCTETS_GB_LO); |
c5aa9e3b LT |
2934 | |
2935 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TX1024TOMAXOCTETS_GB)) | |
2936 | stats->tx1024tomaxoctets_gb += | |
60265108 | 2937 | xgbe_mmc_read(pdata, MMC_TX1024TOMAXOCTETS_GB_LO); |
c5aa9e3b LT |
2938 | |
2939 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXUNICASTFRAMES_GB)) | |
2940 | stats->txunicastframes_gb += | |
60265108 | 2941 | xgbe_mmc_read(pdata, MMC_TXUNICASTFRAMES_GB_LO); |
c5aa9e3b LT |
2942 | |
2943 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXMULTICASTFRAMES_GB)) | |
2944 | stats->txmulticastframes_gb += | |
60265108 | 2945 | xgbe_mmc_read(pdata, MMC_TXMULTICASTFRAMES_GB_LO); |
c5aa9e3b LT |
2946 | |
2947 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXBROADCASTFRAMES_GB)) | |
2948 | stats->txbroadcastframes_g += | |
60265108 | 2949 | xgbe_mmc_read(pdata, MMC_TXBROADCASTFRAMES_GB_LO); |
c5aa9e3b LT |
2950 | |
2951 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXUNDERFLOWERROR)) | |
2952 | stats->txunderflowerror += | |
60265108 | 2953 | xgbe_mmc_read(pdata, MMC_TXUNDERFLOWERROR_LO); |
c5aa9e3b LT |
2954 | |
2955 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXOCTETCOUNT_G)) | |
2956 | stats->txoctetcount_g += | |
60265108 | 2957 | xgbe_mmc_read(pdata, MMC_TXOCTETCOUNT_G_LO); |
c5aa9e3b LT |
2958 | |
2959 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXFRAMECOUNT_G)) | |
2960 | stats->txframecount_g += | |
60265108 | 2961 | xgbe_mmc_read(pdata, MMC_TXFRAMECOUNT_G_LO); |
c5aa9e3b LT |
2962 | |
2963 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXPAUSEFRAMES)) | |
2964 | stats->txpauseframes += | |
60265108 | 2965 | xgbe_mmc_read(pdata, MMC_TXPAUSEFRAMES_LO); |
c5aa9e3b LT |
2966 | |
2967 | if (XGMAC_GET_BITS(mmc_isr, MMC_TISR, TXVLANFRAMES_G)) | |
2968 | stats->txvlanframes_g += | |
60265108 | 2969 | xgbe_mmc_read(pdata, MMC_TXVLANFRAMES_G_LO); |
c5aa9e3b LT |
2970 | } |
2971 | ||
2972 | static void xgbe_rx_mmc_int(struct xgbe_prv_data *pdata) | |
2973 | { | |
2974 | struct xgbe_mmc_stats *stats = &pdata->mmc_stats; | |
2975 | unsigned int mmc_isr = XGMAC_IOREAD(pdata, MMC_RISR); | |
2976 | ||
2977 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXFRAMECOUNT_GB)) | |
2978 | stats->rxframecount_gb += | |
60265108 | 2979 | xgbe_mmc_read(pdata, MMC_RXFRAMECOUNT_GB_LO); |
c5aa9e3b LT |
2980 | |
2981 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOCTETCOUNT_GB)) | |
2982 | stats->rxoctetcount_gb += | |
60265108 | 2983 | xgbe_mmc_read(pdata, MMC_RXOCTETCOUNT_GB_LO); |
c5aa9e3b LT |
2984 | |
2985 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOCTETCOUNT_G)) | |
2986 | stats->rxoctetcount_g += | |
60265108 | 2987 | xgbe_mmc_read(pdata, MMC_RXOCTETCOUNT_G_LO); |
c5aa9e3b LT |
2988 | |
2989 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXBROADCASTFRAMES_G)) | |
2990 | stats->rxbroadcastframes_g += | |
60265108 | 2991 | xgbe_mmc_read(pdata, MMC_RXBROADCASTFRAMES_G_LO); |
c5aa9e3b LT |
2992 | |
2993 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXMULTICASTFRAMES_G)) | |
2994 | stats->rxmulticastframes_g += | |
60265108 | 2995 | xgbe_mmc_read(pdata, MMC_RXMULTICASTFRAMES_G_LO); |
c5aa9e3b LT |
2996 | |
2997 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXCRCERROR)) | |
2998 | stats->rxcrcerror += | |
60265108 | 2999 | xgbe_mmc_read(pdata, MMC_RXCRCERROR_LO); |
c5aa9e3b LT |
3000 | |
3001 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXRUNTERROR)) | |
3002 | stats->rxrunterror += | |
60265108 | 3003 | xgbe_mmc_read(pdata, MMC_RXRUNTERROR); |
c5aa9e3b LT |
3004 | |
3005 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXJABBERERROR)) | |
3006 | stats->rxjabbererror += | |
60265108 | 3007 | xgbe_mmc_read(pdata, MMC_RXJABBERERROR); |
c5aa9e3b LT |
3008 | |
3009 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXUNDERSIZE_G)) | |
3010 | stats->rxundersize_g += | |
60265108 | 3011 | xgbe_mmc_read(pdata, MMC_RXUNDERSIZE_G); |
c5aa9e3b LT |
3012 | |
3013 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOVERSIZE_G)) | |
3014 | stats->rxoversize_g += | |
60265108 | 3015 | xgbe_mmc_read(pdata, MMC_RXOVERSIZE_G); |
c5aa9e3b LT |
3016 | |
3017 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX64OCTETS_GB)) | |
3018 | stats->rx64octets_gb += | |
60265108 | 3019 | xgbe_mmc_read(pdata, MMC_RX64OCTETS_GB_LO); |
c5aa9e3b LT |
3020 | |
3021 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX65TO127OCTETS_GB)) | |
3022 | stats->rx65to127octets_gb += | |
60265108 | 3023 | xgbe_mmc_read(pdata, MMC_RX65TO127OCTETS_GB_LO); |
c5aa9e3b LT |
3024 | |
3025 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX128TO255OCTETS_GB)) | |
3026 | stats->rx128to255octets_gb += | |
60265108 | 3027 | xgbe_mmc_read(pdata, MMC_RX128TO255OCTETS_GB_LO); |
c5aa9e3b LT |
3028 | |
3029 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX256TO511OCTETS_GB)) | |
3030 | stats->rx256to511octets_gb += | |
60265108 | 3031 | xgbe_mmc_read(pdata, MMC_RX256TO511OCTETS_GB_LO); |
c5aa9e3b LT |
3032 | |
3033 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX512TO1023OCTETS_GB)) | |
3034 | stats->rx512to1023octets_gb += | |
60265108 | 3035 | xgbe_mmc_read(pdata, MMC_RX512TO1023OCTETS_GB_LO); |
c5aa9e3b LT |
3036 | |
3037 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RX1024TOMAXOCTETS_GB)) | |
3038 | stats->rx1024tomaxoctets_gb += | |
60265108 | 3039 | xgbe_mmc_read(pdata, MMC_RX1024TOMAXOCTETS_GB_LO); |
c5aa9e3b LT |
3040 | |
3041 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXUNICASTFRAMES_G)) | |
3042 | stats->rxunicastframes_g += | |
60265108 | 3043 | xgbe_mmc_read(pdata, MMC_RXUNICASTFRAMES_G_LO); |
c5aa9e3b LT |
3044 | |
3045 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXLENGTHERROR)) | |
3046 | stats->rxlengtherror += | |
60265108 | 3047 | xgbe_mmc_read(pdata, MMC_RXLENGTHERROR_LO); |
c5aa9e3b LT |
3048 | |
3049 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXOUTOFRANGETYPE)) | |
3050 | stats->rxoutofrangetype += | |
60265108 | 3051 | xgbe_mmc_read(pdata, MMC_RXOUTOFRANGETYPE_LO); |
c5aa9e3b LT |
3052 | |
3053 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXPAUSEFRAMES)) | |
3054 | stats->rxpauseframes += | |
60265108 | 3055 | xgbe_mmc_read(pdata, MMC_RXPAUSEFRAMES_LO); |
c5aa9e3b LT |
3056 | |
3057 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXFIFOOVERFLOW)) | |
3058 | stats->rxfifooverflow += | |
60265108 | 3059 | xgbe_mmc_read(pdata, MMC_RXFIFOOVERFLOW_LO); |
c5aa9e3b LT |
3060 | |
3061 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXVLANFRAMES_GB)) | |
3062 | stats->rxvlanframes_gb += | |
60265108 | 3063 | xgbe_mmc_read(pdata, MMC_RXVLANFRAMES_GB_LO); |
c5aa9e3b LT |
3064 | |
3065 | if (XGMAC_GET_BITS(mmc_isr, MMC_RISR, RXWATCHDOGERROR)) | |
3066 | stats->rxwatchdogerror += | |
60265108 | 3067 | xgbe_mmc_read(pdata, MMC_RXWATCHDOGERROR); |
c5aa9e3b LT |
3068 | } |
3069 | ||
3070 | static void xgbe_read_mmc_stats(struct xgbe_prv_data *pdata) | |
3071 | { | |
3072 | struct xgbe_mmc_stats *stats = &pdata->mmc_stats; | |
3073 | ||
3074 | /* Freeze counters */ | |
3075 | XGMAC_IOWRITE_BITS(pdata, MMC_CR, MCF, 1); | |
3076 | ||
3077 | stats->txoctetcount_gb += | |
60265108 | 3078 | xgbe_mmc_read(pdata, MMC_TXOCTETCOUNT_GB_LO); |
c5aa9e3b LT |
3079 | |
3080 | stats->txframecount_gb += | |
60265108 | 3081 | xgbe_mmc_read(pdata, MMC_TXFRAMECOUNT_GB_LO); |
c5aa9e3b LT |
3082 | |
3083 | stats->txbroadcastframes_g += | |
60265108 | 3084 | xgbe_mmc_read(pdata, MMC_TXBROADCASTFRAMES_G_LO); |
c5aa9e3b LT |
3085 | |
3086 | stats->txmulticastframes_g += | |
60265108 | 3087 | xgbe_mmc_read(pdata, MMC_TXMULTICASTFRAMES_G_LO); |
c5aa9e3b LT |
3088 | |
3089 | stats->tx64octets_gb += | |
60265108 | 3090 | xgbe_mmc_read(pdata, MMC_TX64OCTETS_GB_LO); |
c5aa9e3b LT |
3091 | |
3092 | stats->tx65to127octets_gb += | |
60265108 | 3093 | xgbe_mmc_read(pdata, MMC_TX65TO127OCTETS_GB_LO); |
c5aa9e3b LT |
3094 | |
3095 | stats->tx128to255octets_gb += | |
60265108 | 3096 | xgbe_mmc_read(pdata, MMC_TX128TO255OCTETS_GB_LO); |
c5aa9e3b LT |
3097 | |
3098 | stats->tx256to511octets_gb += | |
60265108 | 3099 | xgbe_mmc_read(pdata, MMC_TX256TO511OCTETS_GB_LO); |
c5aa9e3b LT |
3100 | |
3101 | stats->tx512to1023octets_gb += | |
60265108 | 3102 | xgbe_mmc_read(pdata, MMC_TX512TO1023OCTETS_GB_LO); |
c5aa9e3b LT |
3103 | |
3104 | stats->tx1024tomaxoctets_gb += | |
60265108 | 3105 | xgbe_mmc_read(pdata, MMC_TX1024TOMAXOCTETS_GB_LO); |
c5aa9e3b LT |
3106 | |
3107 | stats->txunicastframes_gb += | |
60265108 | 3108 | xgbe_mmc_read(pdata, MMC_TXUNICASTFRAMES_GB_LO); |
c5aa9e3b LT |
3109 | |
3110 | stats->txmulticastframes_gb += | |
60265108 | 3111 | xgbe_mmc_read(pdata, MMC_TXMULTICASTFRAMES_GB_LO); |
c5aa9e3b LT |
3112 | |
3113 | stats->txbroadcastframes_g += | |
60265108 | 3114 | xgbe_mmc_read(pdata, MMC_TXBROADCASTFRAMES_GB_LO); |
c5aa9e3b LT |
3115 | |
3116 | stats->txunderflowerror += | |
60265108 | 3117 | xgbe_mmc_read(pdata, MMC_TXUNDERFLOWERROR_LO); |
c5aa9e3b LT |
3118 | |
3119 | stats->txoctetcount_g += | |
60265108 | 3120 | xgbe_mmc_read(pdata, MMC_TXOCTETCOUNT_G_LO); |
c5aa9e3b LT |
3121 | |
3122 | stats->txframecount_g += | |
60265108 | 3123 | xgbe_mmc_read(pdata, MMC_TXFRAMECOUNT_G_LO); |
c5aa9e3b LT |
3124 | |
3125 | stats->txpauseframes += | |
60265108 | 3126 | xgbe_mmc_read(pdata, MMC_TXPAUSEFRAMES_LO); |
c5aa9e3b LT |
3127 | |
3128 | stats->txvlanframes_g += | |
60265108 | 3129 | xgbe_mmc_read(pdata, MMC_TXVLANFRAMES_G_LO); |
c5aa9e3b LT |
3130 | |
3131 | stats->rxframecount_gb += | |
60265108 | 3132 | xgbe_mmc_read(pdata, MMC_RXFRAMECOUNT_GB_LO); |
c5aa9e3b LT |
3133 | |
3134 | stats->rxoctetcount_gb += | |
60265108 | 3135 | xgbe_mmc_read(pdata, MMC_RXOCTETCOUNT_GB_LO); |
c5aa9e3b LT |
3136 | |
3137 | stats->rxoctetcount_g += | |
60265108 | 3138 | xgbe_mmc_read(pdata, MMC_RXOCTETCOUNT_G_LO); |
c5aa9e3b LT |
3139 | |
3140 | stats->rxbroadcastframes_g += | |
60265108 | 3141 | xgbe_mmc_read(pdata, MMC_RXBROADCASTFRAMES_G_LO); |
c5aa9e3b LT |
3142 | |
3143 | stats->rxmulticastframes_g += | |
60265108 | 3144 | xgbe_mmc_read(pdata, MMC_RXMULTICASTFRAMES_G_LO); |
c5aa9e3b LT |
3145 | |
3146 | stats->rxcrcerror += | |
60265108 | 3147 | xgbe_mmc_read(pdata, MMC_RXCRCERROR_LO); |
c5aa9e3b LT |
3148 | |
3149 | stats->rxrunterror += | |
60265108 | 3150 | xgbe_mmc_read(pdata, MMC_RXRUNTERROR); |
c5aa9e3b LT |
3151 | |
3152 | stats->rxjabbererror += | |
60265108 | 3153 | xgbe_mmc_read(pdata, MMC_RXJABBERERROR); |
c5aa9e3b LT |
3154 | |
3155 | stats->rxundersize_g += | |
60265108 | 3156 | xgbe_mmc_read(pdata, MMC_RXUNDERSIZE_G); |
c5aa9e3b LT |
3157 | |
3158 | stats->rxoversize_g += | |
60265108 | 3159 | xgbe_mmc_read(pdata, MMC_RXOVERSIZE_G); |
c5aa9e3b LT |
3160 | |
3161 | stats->rx64octets_gb += | |
60265108 | 3162 | xgbe_mmc_read(pdata, MMC_RX64OCTETS_GB_LO); |
c5aa9e3b LT |
3163 | |
3164 | stats->rx65to127octets_gb += | |
60265108 | 3165 | xgbe_mmc_read(pdata, MMC_RX65TO127OCTETS_GB_LO); |
c5aa9e3b LT |
3166 | |
3167 | stats->rx128to255octets_gb += | |
60265108 | 3168 | xgbe_mmc_read(pdata, MMC_RX128TO255OCTETS_GB_LO); |
c5aa9e3b LT |
3169 | |
3170 | stats->rx256to511octets_gb += | |
60265108 | 3171 | xgbe_mmc_read(pdata, MMC_RX256TO511OCTETS_GB_LO); |
c5aa9e3b LT |
3172 | |
3173 | stats->rx512to1023octets_gb += | |
60265108 | 3174 | xgbe_mmc_read(pdata, MMC_RX512TO1023OCTETS_GB_LO); |
c5aa9e3b LT |
3175 | |
3176 | stats->rx1024tomaxoctets_gb += | |
60265108 | 3177 | xgbe_mmc_read(pdata, MMC_RX1024TOMAXOCTETS_GB_LO); |
c5aa9e3b LT |
3178 | |
3179 | stats->rxunicastframes_g += | |
60265108 | 3180 | xgbe_mmc_read(pdata, MMC_RXUNICASTFRAMES_G_LO); |
c5aa9e3b LT |
3181 | |
3182 | stats->rxlengtherror += | |
60265108 | 3183 | xgbe_mmc_read(pdata, MMC_RXLENGTHERROR_LO); |
c5aa9e3b LT |
3184 | |
3185 | stats->rxoutofrangetype += | |
60265108 | 3186 | xgbe_mmc_read(pdata, MMC_RXOUTOFRANGETYPE_LO); |
c5aa9e3b LT |
3187 | |
3188 | stats->rxpauseframes += | |
60265108 | 3189 | xgbe_mmc_read(pdata, MMC_RXPAUSEFRAMES_LO); |
c5aa9e3b LT |
3190 | |
3191 | stats->rxfifooverflow += | |
60265108 | 3192 | xgbe_mmc_read(pdata, MMC_RXFIFOOVERFLOW_LO); |
c5aa9e3b LT |
3193 | |
3194 | stats->rxvlanframes_gb += | |
60265108 | 3195 | xgbe_mmc_read(pdata, MMC_RXVLANFRAMES_GB_LO); |
c5aa9e3b LT |
3196 | |
3197 | stats->rxwatchdogerror += | |
60265108 | 3198 | xgbe_mmc_read(pdata, MMC_RXWATCHDOGERROR); |
c5aa9e3b LT |
3199 | |
3200 | /* Un-freeze counters */ | |
3201 | XGMAC_IOWRITE_BITS(pdata, MMC_CR, MCF, 0); | |
3202 | } | |
3203 | ||
3204 | static void xgbe_config_mmc(struct xgbe_prv_data *pdata) | |
3205 | { | |
3206 | /* Set counters to reset on read */ | |
3207 | XGMAC_IOWRITE_BITS(pdata, MMC_CR, ROR, 1); | |
3208 | ||
3209 | /* Reset the counters */ | |
3210 | XGMAC_IOWRITE_BITS(pdata, MMC_CR, CR, 1); | |
3211 | } | |
3212 | ||
4b8acdf5 LT |
3213 | static void xgbe_txq_prepare_tx_stop(struct xgbe_prv_data *pdata, |
3214 | unsigned int queue) | |
3215 | { | |
3216 | unsigned int tx_status; | |
3217 | unsigned long tx_timeout; | |
3218 | ||
3219 | /* The Tx engine cannot be stopped if it is actively processing | |
3220 | * packets. Wait for the Tx queue to empty the Tx fifo. Don't | |
3221 | * wait forever though... | |
3222 | */ | |
3223 | tx_timeout = jiffies + (XGBE_DMA_STOP_TIMEOUT * HZ); | |
3224 | while (time_before(jiffies, tx_timeout)) { | |
3225 | tx_status = XGMAC_MTL_IOREAD(pdata, queue, MTL_Q_TQDR); | |
3226 | if ((XGMAC_GET_BITS(tx_status, MTL_Q_TQDR, TRCSTS) != 1) && | |
3227 | (XGMAC_GET_BITS(tx_status, MTL_Q_TQDR, TXQSTS) == 0)) | |
3228 | break; | |
3229 | ||
3230 | usleep_range(500, 1000); | |
3231 | } | |
3232 | ||
3233 | if (!time_before(jiffies, tx_timeout)) | |
3234 | netdev_info(pdata->netdev, | |
3235 | "timed out waiting for Tx queue %u to empty\n", | |
3236 | queue); | |
3237 | } | |
3238 | ||
16edd34e | 3239 | static void xgbe_prepare_tx_stop(struct xgbe_prv_data *pdata, |
4b8acdf5 | 3240 | unsigned int queue) |
16edd34e LT |
3241 | { |
3242 | unsigned int tx_dsr, tx_pos, tx_qidx; | |
3243 | unsigned int tx_status; | |
3244 | unsigned long tx_timeout; | |
3245 | ||
4b8acdf5 LT |
3246 | if (XGMAC_GET_BITS(pdata->hw_feat.version, MAC_VR, SNPSVER) > 0x20) |
3247 | return xgbe_txq_prepare_tx_stop(pdata, queue); | |
3248 | ||
16edd34e | 3249 | /* Calculate the status register to read and the position within */ |
4b8acdf5 | 3250 | if (queue < DMA_DSRX_FIRST_QUEUE) { |
16edd34e | 3251 | tx_dsr = DMA_DSR0; |
4b8acdf5 | 3252 | tx_pos = (queue * DMA_DSR_Q_WIDTH) + DMA_DSR0_TPS_START; |
16edd34e | 3253 | } else { |
4b8acdf5 | 3254 | tx_qidx = queue - DMA_DSRX_FIRST_QUEUE; |
16edd34e LT |
3255 | |
3256 | tx_dsr = DMA_DSR1 + ((tx_qidx / DMA_DSRX_QPR) * DMA_DSRX_INC); | |
3257 | tx_pos = ((tx_qidx % DMA_DSRX_QPR) * DMA_DSR_Q_WIDTH) + | |
3258 | DMA_DSRX_TPS_START; | |
3259 | } | |
3260 | ||
3261 | /* The Tx engine cannot be stopped if it is actively processing | |
3262 | * descriptors. Wait for the Tx engine to enter the stopped or | |
3263 | * suspended state. Don't wait forever though... | |
3264 | */ | |
3265 | tx_timeout = jiffies + (XGBE_DMA_STOP_TIMEOUT * HZ); | |
3266 | while (time_before(jiffies, tx_timeout)) { | |
3267 | tx_status = XGMAC_IOREAD(pdata, tx_dsr); | |
3268 | tx_status = GET_BITS(tx_status, tx_pos, DMA_DSR_TPS_WIDTH); | |
3269 | if ((tx_status == DMA_TPS_STOPPED) || | |
3270 | (tx_status == DMA_TPS_SUSPENDED)) | |
3271 | break; | |
3272 | ||
3273 | usleep_range(500, 1000); | |
3274 | } | |
3275 | ||
3276 | if (!time_before(jiffies, tx_timeout)) | |
3277 | netdev_info(pdata->netdev, | |
3278 | "timed out waiting for Tx DMA channel %u to stop\n", | |
4b8acdf5 | 3279 | queue); |
16edd34e LT |
3280 | } |
3281 | ||
c5aa9e3b LT |
3282 | static void xgbe_enable_tx(struct xgbe_prv_data *pdata) |
3283 | { | |
c5aa9e3b LT |
3284 | unsigned int i; |
3285 | ||
3286 | /* Enable each Tx DMA channel */ | |
18f9f0ac LT |
3287 | for (i = 0; i < pdata->channel_count; i++) { |
3288 | if (!pdata->channel[i]->tx_ring) | |
c5aa9e3b LT |
3289 | break; |
3290 | ||
18f9f0ac | 3291 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_TCR, ST, 1); |
c5aa9e3b LT |
3292 | } |
3293 | ||
3294 | /* Enable each Tx queue */ | |
853eb16b | 3295 | for (i = 0; i < pdata->tx_q_count; i++) |
c5aa9e3b LT |
3296 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TXQEN, |
3297 | MTL_Q_ENABLED); | |
3298 | ||
3299 | /* Enable MAC Tx */ | |
3300 | XGMAC_IOWRITE_BITS(pdata, MAC_TCR, TE, 1); | |
3301 | } | |
3302 | ||
3303 | static void xgbe_disable_tx(struct xgbe_prv_data *pdata) | |
3304 | { | |
c5aa9e3b LT |
3305 | unsigned int i; |
3306 | ||
16edd34e | 3307 | /* Prepare for Tx DMA channel stop */ |
4b8acdf5 LT |
3308 | for (i = 0; i < pdata->tx_q_count; i++) |
3309 | xgbe_prepare_tx_stop(pdata, i); | |
16edd34e | 3310 | |
c5aa9e3b LT |
3311 | /* Disable MAC Tx */ |
3312 | XGMAC_IOWRITE_BITS(pdata, MAC_TCR, TE, 0); | |
3313 | ||
3314 | /* Disable each Tx queue */ | |
853eb16b | 3315 | for (i = 0; i < pdata->tx_q_count; i++) |
c5aa9e3b LT |
3316 | XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TXQEN, 0); |
3317 | ||
3318 | /* Disable each Tx DMA channel */ | |
18f9f0ac LT |
3319 | for (i = 0; i < pdata->channel_count; i++) { |
3320 | if (!pdata->channel[i]->tx_ring) | |
c5aa9e3b LT |
3321 | break; |
3322 | ||
18f9f0ac | 3323 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_TCR, ST, 0); |
c5aa9e3b LT |
3324 | } |
3325 | } | |
3326 | ||
c3727d61 LT |
3327 | static void xgbe_prepare_rx_stop(struct xgbe_prv_data *pdata, |
3328 | unsigned int queue) | |
3329 | { | |
3330 | unsigned int rx_status; | |
3331 | unsigned long rx_timeout; | |
3332 | ||
3333 | /* The Rx engine cannot be stopped if it is actively processing | |
3334 | * packets. Wait for the Rx queue to empty the Rx fifo. Don't | |
3335 | * wait forever though... | |
3336 | */ | |
3337 | rx_timeout = jiffies + (XGBE_DMA_STOP_TIMEOUT * HZ); | |
3338 | while (time_before(jiffies, rx_timeout)) { | |
3339 | rx_status = XGMAC_MTL_IOREAD(pdata, queue, MTL_Q_RQDR); | |
3340 | if ((XGMAC_GET_BITS(rx_status, MTL_Q_RQDR, PRXQ) == 0) && | |
3341 | (XGMAC_GET_BITS(rx_status, MTL_Q_RQDR, RXQSTS) == 0)) | |
3342 | break; | |
3343 | ||
3344 | usleep_range(500, 1000); | |
3345 | } | |
3346 | ||
3347 | if (!time_before(jiffies, rx_timeout)) | |
3348 | netdev_info(pdata->netdev, | |
3349 | "timed out waiting for Rx queue %u to empty\n", | |
3350 | queue); | |
3351 | } | |
3352 | ||
c5aa9e3b LT |
3353 | static void xgbe_enable_rx(struct xgbe_prv_data *pdata) |
3354 | { | |
c5aa9e3b LT |
3355 | unsigned int reg_val, i; |
3356 | ||
3357 | /* Enable each Rx DMA channel */ | |
18f9f0ac LT |
3358 | for (i = 0; i < pdata->channel_count; i++) { |
3359 | if (!pdata->channel[i]->rx_ring) | |
c5aa9e3b LT |
3360 | break; |
3361 | ||
18f9f0ac | 3362 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_RCR, SR, 1); |
c5aa9e3b LT |
3363 | } |
3364 | ||
3365 | /* Enable each Rx queue */ | |
3366 | reg_val = 0; | |
853eb16b | 3367 | for (i = 0; i < pdata->rx_q_count; i++) |
c5aa9e3b LT |
3368 | reg_val |= (0x02 << (i << 1)); |
3369 | XGMAC_IOWRITE(pdata, MAC_RQC0R, reg_val); | |
3370 | ||
3371 | /* Enable MAC Rx */ | |
3372 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, DCRCC, 1); | |
3373 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, CST, 1); | |
3374 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, ACS, 1); | |
3375 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, RE, 1); | |
3376 | } | |
3377 | ||
3378 | static void xgbe_disable_rx(struct xgbe_prv_data *pdata) | |
3379 | { | |
c5aa9e3b LT |
3380 | unsigned int i; |
3381 | ||
3382 | /* Disable MAC Rx */ | |
3383 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, DCRCC, 0); | |
3384 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, CST, 0); | |
3385 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, ACS, 0); | |
3386 | XGMAC_IOWRITE_BITS(pdata, MAC_RCR, RE, 0); | |
3387 | ||
c3727d61 LT |
3388 | /* Prepare for Rx DMA channel stop */ |
3389 | for (i = 0; i < pdata->rx_q_count; i++) | |
3390 | xgbe_prepare_rx_stop(pdata, i); | |
3391 | ||
c5aa9e3b LT |
3392 | /* Disable each Rx queue */ |
3393 | XGMAC_IOWRITE(pdata, MAC_RQC0R, 0); | |
3394 | ||
3395 | /* Disable each Rx DMA channel */ | |
18f9f0ac LT |
3396 | for (i = 0; i < pdata->channel_count; i++) { |
3397 | if (!pdata->channel[i]->rx_ring) | |
c5aa9e3b LT |
3398 | break; |
3399 | ||
18f9f0ac | 3400 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_RCR, SR, 0); |
c5aa9e3b LT |
3401 | } |
3402 | } | |
3403 | ||
3404 | static void xgbe_powerup_tx(struct xgbe_prv_data *pdata) | |
3405 | { | |
c5aa9e3b LT |
3406 | unsigned int i; |
3407 | ||
3408 | /* Enable each Tx DMA channel */ | |
18f9f0ac LT |
3409 | for (i = 0; i < pdata->channel_count; i++) { |
3410 | if (!pdata->channel[i]->tx_ring) | |
c5aa9e3b LT |
3411 | break; |
3412 | ||
18f9f0ac | 3413 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_TCR, ST, 1); |
c5aa9e3b LT |
3414 | } |
3415 | ||
3416 | /* Enable MAC Tx */ | |
3417 | XGMAC_IOWRITE_BITS(pdata, MAC_TCR, TE, 1); | |
3418 | } | |
3419 | ||
3420 | static void xgbe_powerdown_tx(struct xgbe_prv_data *pdata) | |
3421 | { | |
c5aa9e3b LT |
3422 | unsigned int i; |
3423 | ||
16edd34e | 3424 | /* Prepare for Tx DMA channel stop */ |
4b8acdf5 LT |
3425 | for (i = 0; i < pdata->tx_q_count; i++) |
3426 | xgbe_prepare_tx_stop(pdata, i); | |
16edd34e | 3427 | |
c5aa9e3b LT |
3428 | /* Disable MAC Tx */ |
3429 | XGMAC_IOWRITE_BITS(pdata, MAC_TCR, TE, 0); | |
3430 | ||
3431 | /* Disable each Tx DMA channel */ | |
18f9f0ac LT |
3432 | for (i = 0; i < pdata->channel_count; i++) { |
3433 | if (!pdata->channel[i]->tx_ring) | |
c5aa9e3b LT |
3434 | break; |
3435 | ||
18f9f0ac | 3436 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_TCR, ST, 0); |
c5aa9e3b LT |
3437 | } |
3438 | } | |
3439 | ||
3440 | static void xgbe_powerup_rx(struct xgbe_prv_data *pdata) | |
3441 | { | |
c5aa9e3b LT |
3442 | unsigned int i; |
3443 | ||
3444 | /* Enable each Rx DMA channel */ | |
18f9f0ac LT |
3445 | for (i = 0; i < pdata->channel_count; i++) { |
3446 | if (!pdata->channel[i]->rx_ring) | |
c5aa9e3b LT |
3447 | break; |
3448 | ||
18f9f0ac | 3449 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_RCR, SR, 1); |
c5aa9e3b LT |
3450 | } |
3451 | } | |
3452 | ||
3453 | static void xgbe_powerdown_rx(struct xgbe_prv_data *pdata) | |
3454 | { | |
c5aa9e3b LT |
3455 | unsigned int i; |
3456 | ||
3457 | /* Disable each Rx DMA channel */ | |
18f9f0ac LT |
3458 | for (i = 0; i < pdata->channel_count; i++) { |
3459 | if (!pdata->channel[i]->rx_ring) | |
c5aa9e3b LT |
3460 | break; |
3461 | ||
18f9f0ac | 3462 | XGMAC_DMA_IOWRITE_BITS(pdata->channel[i], DMA_CH_RCR, SR, 0); |
c5aa9e3b LT |
3463 | } |
3464 | } | |
3465 | ||
3466 | static int xgbe_init(struct xgbe_prv_data *pdata) | |
3467 | { | |
3468 | struct xgbe_desc_if *desc_if = &pdata->desc_if; | |
3469 | int ret; | |
3470 | ||
3471 | DBGPR("-->xgbe_init\n"); | |
3472 | ||
3473 | /* Flush Tx queues */ | |
3474 | ret = xgbe_flush_tx_queues(pdata); | |
738f7f64 LT |
3475 | if (ret) { |
3476 | netdev_err(pdata->netdev, "error flushing TX queues\n"); | |
c5aa9e3b | 3477 | return ret; |
738f7f64 | 3478 | } |
c5aa9e3b LT |
3479 | |
3480 | /* | |
3481 | * Initialize DMA related features | |
3482 | */ | |
3483 | xgbe_config_dma_bus(pdata); | |
3484 | xgbe_config_dma_cache(pdata); | |
3485 | xgbe_config_osp_mode(pdata); | |
7e1e6b86 | 3486 | xgbe_config_pbl_val(pdata); |
c5aa9e3b LT |
3487 | xgbe_config_rx_coalesce(pdata); |
3488 | xgbe_config_tx_coalesce(pdata); | |
3489 | xgbe_config_rx_buffer_size(pdata); | |
3490 | xgbe_config_tso_mode(pdata); | |
174fd259 | 3491 | xgbe_config_sph_mode(pdata); |
5b9dfe29 | 3492 | xgbe_config_rss(pdata); |
c5aa9e3b LT |
3493 | desc_if->wrapper_tx_desc_init(pdata); |
3494 | desc_if->wrapper_rx_desc_init(pdata); | |
3495 | xgbe_enable_dma_interrupts(pdata); | |
3496 | ||
3497 | /* | |
3498 | * Initialize MTL related features | |
3499 | */ | |
3500 | xgbe_config_mtl_mode(pdata); | |
fca2d994 | 3501 | xgbe_config_queue_mapping(pdata); |
c5aa9e3b LT |
3502 | xgbe_config_tsf_mode(pdata, pdata->tx_sf_mode); |
3503 | xgbe_config_rsf_mode(pdata, pdata->rx_sf_mode); | |
3504 | xgbe_config_tx_threshold(pdata, pdata->tx_threshold); | |
3505 | xgbe_config_rx_threshold(pdata, pdata->rx_threshold); | |
3506 | xgbe_config_tx_fifo_size(pdata); | |
3507 | xgbe_config_rx_fifo_size(pdata); | |
c5aa9e3b LT |
3508 | /*TODO: Error Packet and undersized good Packet forwarding enable |
3509 | (FEP and FUP) | |
3510 | */ | |
fca2d994 | 3511 | xgbe_config_dcb_tc(pdata); |
c5aa9e3b LT |
3512 | xgbe_enable_mtl_interrupts(pdata); |
3513 | ||
c5aa9e3b LT |
3514 | /* |
3515 | * Initialize MAC related features | |
3516 | */ | |
3517 | xgbe_config_mac_address(pdata); | |
b876382b | 3518 | xgbe_config_rx_mode(pdata); |
c5aa9e3b LT |
3519 | xgbe_config_jumbo_enable(pdata); |
3520 | xgbe_config_flow_control(pdata); | |
916102c6 | 3521 | xgbe_config_mac_speed(pdata); |
c5aa9e3b LT |
3522 | xgbe_config_checksum_offload(pdata); |
3523 | xgbe_config_vlan_support(pdata); | |
3524 | xgbe_config_mmc(pdata); | |
3525 | xgbe_enable_mac_interrupts(pdata); | |
3526 | ||
e78332b2 LT |
3527 | /* |
3528 | * Initialize ECC related features | |
3529 | */ | |
3530 | xgbe_enable_ecc_interrupts(pdata); | |
3531 | ||
c5aa9e3b LT |
3532 | DBGPR("<--xgbe_init\n"); |
3533 | ||
3534 | return 0; | |
3535 | } | |
3536 | ||
3537 | void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *hw_if) | |
3538 | { | |
3539 | DBGPR("-->xgbe_init_function_ptrs\n"); | |
3540 | ||
3541 | hw_if->tx_complete = xgbe_tx_complete; | |
3542 | ||
c5aa9e3b | 3543 | hw_if->set_mac_address = xgbe_set_mac_address; |
b876382b | 3544 | hw_if->config_rx_mode = xgbe_config_rx_mode; |
c5aa9e3b LT |
3545 | |
3546 | hw_if->enable_rx_csum = xgbe_enable_rx_csum; | |
3547 | hw_if->disable_rx_csum = xgbe_disable_rx_csum; | |
3548 | ||
3549 | hw_if->enable_rx_vlan_stripping = xgbe_enable_rx_vlan_stripping; | |
3550 | hw_if->disable_rx_vlan_stripping = xgbe_disable_rx_vlan_stripping; | |
801c62d9 LT |
3551 | hw_if->enable_rx_vlan_filtering = xgbe_enable_rx_vlan_filtering; |
3552 | hw_if->disable_rx_vlan_filtering = xgbe_disable_rx_vlan_filtering; | |
3553 | hw_if->update_vlan_hash_table = xgbe_update_vlan_hash_table; | |
c5aa9e3b LT |
3554 | |
3555 | hw_if->read_mmd_regs = xgbe_read_mmd_regs; | |
3556 | hw_if->write_mmd_regs = xgbe_write_mmd_regs; | |
3557 | ||
e57f7a3f | 3558 | hw_if->set_speed = xgbe_set_speed; |
c5aa9e3b | 3559 | |
732f2ab7 LT |
3560 | hw_if->set_ext_mii_mode = xgbe_set_ext_mii_mode; |
3561 | hw_if->read_ext_mii_regs = xgbe_read_ext_mii_regs; | |
3562 | hw_if->write_ext_mii_regs = xgbe_write_ext_mii_regs; | |
3563 | ||
3564 | hw_if->set_gpio = xgbe_set_gpio; | |
3565 | hw_if->clr_gpio = xgbe_clr_gpio; | |
3566 | ||
c5aa9e3b LT |
3567 | hw_if->enable_tx = xgbe_enable_tx; |
3568 | hw_if->disable_tx = xgbe_disable_tx; | |
3569 | hw_if->enable_rx = xgbe_enable_rx; | |
3570 | hw_if->disable_rx = xgbe_disable_rx; | |
3571 | ||
3572 | hw_if->powerup_tx = xgbe_powerup_tx; | |
3573 | hw_if->powerdown_tx = xgbe_powerdown_tx; | |
3574 | hw_if->powerup_rx = xgbe_powerup_rx; | |
3575 | hw_if->powerdown_rx = xgbe_powerdown_rx; | |
3576 | ||
a9d41981 | 3577 | hw_if->dev_xmit = xgbe_dev_xmit; |
c5aa9e3b LT |
3578 | hw_if->dev_read = xgbe_dev_read; |
3579 | hw_if->enable_int = xgbe_enable_int; | |
3580 | hw_if->disable_int = xgbe_disable_int; | |
3581 | hw_if->init = xgbe_init; | |
3582 | hw_if->exit = xgbe_exit; | |
3583 | ||
3584 | /* Descriptor related Sequences have to be initialized here */ | |
3585 | hw_if->tx_desc_init = xgbe_tx_desc_init; | |
3586 | hw_if->rx_desc_init = xgbe_rx_desc_init; | |
3587 | hw_if->tx_desc_reset = xgbe_tx_desc_reset; | |
3588 | hw_if->rx_desc_reset = xgbe_rx_desc_reset; | |
3589 | hw_if->is_last_desc = xgbe_is_last_desc; | |
3590 | hw_if->is_context_desc = xgbe_is_context_desc; | |
16958a2b | 3591 | hw_if->tx_start_xmit = xgbe_tx_start_xmit; |
c5aa9e3b LT |
3592 | |
3593 | /* For FLOW ctrl */ | |
3594 | hw_if->config_tx_flow_control = xgbe_config_tx_flow_control; | |
3595 | hw_if->config_rx_flow_control = xgbe_config_rx_flow_control; | |
3596 | ||
3597 | /* For RX coalescing */ | |
3598 | hw_if->config_rx_coalesce = xgbe_config_rx_coalesce; | |
3599 | hw_if->config_tx_coalesce = xgbe_config_tx_coalesce; | |
3600 | hw_if->usec_to_riwt = xgbe_usec_to_riwt; | |
3601 | hw_if->riwt_to_usec = xgbe_riwt_to_usec; | |
3602 | ||
3603 | /* For RX and TX threshold config */ | |
3604 | hw_if->config_rx_threshold = xgbe_config_rx_threshold; | |
3605 | hw_if->config_tx_threshold = xgbe_config_tx_threshold; | |
3606 | ||
3607 | /* For RX and TX Store and Forward Mode config */ | |
3608 | hw_if->config_rsf_mode = xgbe_config_rsf_mode; | |
3609 | hw_if->config_tsf_mode = xgbe_config_tsf_mode; | |
3610 | ||
3611 | /* For TX DMA Operating on Second Frame config */ | |
3612 | hw_if->config_osp_mode = xgbe_config_osp_mode; | |
3613 | ||
c5aa9e3b LT |
3614 | /* For MMC statistics support */ |
3615 | hw_if->tx_mmc_int = xgbe_tx_mmc_int; | |
3616 | hw_if->rx_mmc_int = xgbe_rx_mmc_int; | |
3617 | hw_if->read_mmc_stats = xgbe_read_mmc_stats; | |
3618 | ||
23e4eef7 LT |
3619 | /* For PTP config */ |
3620 | hw_if->config_tstamp = xgbe_config_tstamp; | |
3621 | hw_if->update_tstamp_addend = xgbe_update_tstamp_addend; | |
3622 | hw_if->set_tstamp_time = xgbe_set_tstamp_time; | |
3623 | hw_if->get_tstamp_time = xgbe_get_tstamp_time; | |
3624 | hw_if->get_tx_tstamp = xgbe_get_tx_tstamp; | |
3625 | ||
fca2d994 | 3626 | /* For Data Center Bridging config */ |
b3b71597 | 3627 | hw_if->config_tc = xgbe_config_tc; |
fca2d994 LT |
3628 | hw_if->config_dcb_tc = xgbe_config_dcb_tc; |
3629 | hw_if->config_dcb_pfc = xgbe_config_dcb_pfc; | |
3630 | ||
5b9dfe29 LT |
3631 | /* For Receive Side Scaling */ |
3632 | hw_if->enable_rss = xgbe_enable_rss; | |
3633 | hw_if->disable_rss = xgbe_disable_rss; | |
f6ac8628 LT |
3634 | hw_if->set_rss_hash_key = xgbe_set_rss_hash_key; |
3635 | hw_if->set_rss_lookup_table = xgbe_set_rss_lookup_table; | |
5b9dfe29 | 3636 | |
e78332b2 LT |
3637 | /* For ECC */ |
3638 | hw_if->disable_ecc_ded = xgbe_disable_ecc_ded; | |
3639 | hw_if->disable_ecc_sec = xgbe_disable_ecc_sec; | |
3640 | ||
1a510ccf LT |
3641 | /* For VXLAN */ |
3642 | hw_if->enable_vxlan = xgbe_enable_vxlan; | |
3643 | hw_if->disable_vxlan = xgbe_disable_vxlan; | |
3644 | hw_if->set_vxlan_id = xgbe_set_vxlan_id; | |
3645 | ||
c5aa9e3b LT |
3646 | DBGPR("<--xgbe_init_function_ptrs\n"); |
3647 | } |