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1// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
2/* Copyright 2019 NXP */
3
4#include "enetc.h"
5
6#include <net/pkt_sched.h>
7#include <linux/math64.h>
8#include <linux/refcount.h>
9#include <net/pkt_cls.h>
10#include <net/tc_act/tc_gate.h>
11
12static u16 enetc_get_max_gcl_len(struct enetc_hw *hw)
13{
14 return enetc_rd(hw, ENETC_PTGCAPR) & ENETC_PTGCAPR_MAX_GCL_LEN_MASK;
15}
16
17void enetc_sched_speed_set(struct enetc_ndev_priv *priv, int speed)
18{
19 struct enetc_hw *hw = &priv->si->hw;
20 u32 old_speed = priv->speed;
21 u32 pspeed, tmp;
22
23 if (speed == old_speed)
24 return;
25
26 switch (speed) {
27 case SPEED_1000:
28 pspeed = ENETC_PMR_PSPEED_1000M;
29 break;
30 case SPEED_2500:
31 pspeed = ENETC_PMR_PSPEED_2500M;
32 break;
33 case SPEED_100:
34 pspeed = ENETC_PMR_PSPEED_100M;
35 break;
36 case SPEED_10:
37 default:
38 pspeed = ENETC_PMR_PSPEED_10M;
39 }
40
41 priv->speed = speed;
42 tmp = enetc_port_rd(hw, ENETC_PMR);
43 enetc_port_wr(hw, ENETC_PMR, (tmp & ~ENETC_PMR_PSPEED_MASK) | pspeed);
44}
45
46static int enetc_setup_taprio(struct enetc_ndev_priv *priv,
47 struct tc_taprio_qopt_offload *admin_conf)
48{
49 struct enetc_hw *hw = &priv->si->hw;
50 struct enetc_cbd cbd = {.cmd = 0};
51 struct tgs_gcl_conf *gcl_config;
52 struct tgs_gcl_data *gcl_data;
53 dma_addr_t dma;
54 struct gce *gce;
55 u16 data_size;
56 u16 gcl_len;
57 void *tmp;
58 u32 tge;
59 int err;
60 int i;
61
62 /* TSD and Qbv are mutually exclusive in hardware */
63 for (i = 0; i < priv->num_tx_rings; i++)
64 if (priv->tx_ring[i]->tsd_enable)
65 return -EBUSY;
66
67 if (admin_conf->num_entries > enetc_get_max_gcl_len(hw))
68 return -EINVAL;
69
70 if (admin_conf->cycle_time > U32_MAX ||
71 admin_conf->cycle_time_extension > U32_MAX)
72 return -EINVAL;
73
74 /* Configure the (administrative) gate control list using the
75 * control BD descriptor.
76 */
77 gcl_config = &cbd.gcl_conf;
78 gcl_len = admin_conf->num_entries;
79
80 data_size = struct_size(gcl_data, entry, gcl_len);
81 tmp = enetc_cbd_alloc_data_mem(priv->si, &cbd, data_size,
82 &dma, (void *)&gcl_data);
83 if (!tmp)
84 return -ENOMEM;
85
86 gce = (struct gce *)(gcl_data + 1);
87
88 /* Set all gates open as default */
89 gcl_config->atc = 0xff;
90 gcl_config->acl_len = cpu_to_le16(gcl_len);
91
92 gcl_data->btl = cpu_to_le32(lower_32_bits(admin_conf->base_time));
93 gcl_data->bth = cpu_to_le32(upper_32_bits(admin_conf->base_time));
94 gcl_data->ct = cpu_to_le32(admin_conf->cycle_time);
95 gcl_data->cte = cpu_to_le32(admin_conf->cycle_time_extension);
96
97 for (i = 0; i < gcl_len; i++) {
98 struct tc_taprio_sched_entry *temp_entry;
99 struct gce *temp_gce = gce + i;
100
101 temp_entry = &admin_conf->entries[i];
102
103 temp_gce->gate = (u8)temp_entry->gate_mask;
104 temp_gce->period = cpu_to_le32(temp_entry->interval);
105 }
106
107 cbd.status_flags = 0;
108
109 cbd.cls = BDCR_CMD_PORT_GCL;
110 cbd.status_flags = 0;
111
112 tge = enetc_rd(hw, ENETC_PTGCR);
113 enetc_wr(hw, ENETC_PTGCR, tge | ENETC_PTGCR_TGE);
114
115 err = enetc_send_cmd(priv->si, &cbd);
116 if (err)
117 enetc_wr(hw, ENETC_PTGCR, tge & ~ENETC_PTGCR_TGE);
118
119 enetc_cbd_free_data_mem(priv->si, data_size, tmp, &dma);
120
121 if (err)
122 return err;
123
124 enetc_set_ptcmsdur(hw, admin_conf->max_sdu);
125 priv->active_offloads |= ENETC_F_QBV;
126
127 return 0;
128}
129
130static void enetc_reset_taprio_stats(struct enetc_ndev_priv *priv)
131{
132 int i;
133
134 for (i = 0; i < priv->num_tx_rings; i++)
135 priv->tx_ring[i]->stats.win_drop = 0;
136}
137
138static void enetc_reset_taprio(struct enetc_ndev_priv *priv)
139{
140 struct enetc_hw *hw = &priv->si->hw;
141 u32 val;
142
143 val = enetc_rd(hw, ENETC_PTGCR);
144 enetc_wr(hw, ENETC_PTGCR, val & ~ENETC_PTGCR_TGE);
145 enetc_reset_ptcmsdur(hw);
146
147 priv->active_offloads &= ~ENETC_F_QBV;
148}
149
150static void enetc_taprio_destroy(struct net_device *ndev)
151{
152 struct enetc_ndev_priv *priv = netdev_priv(ndev);
153
154 enetc_reset_taprio(priv);
155 enetc_reset_tc_mqprio(ndev);
156 enetc_reset_taprio_stats(priv);
157}
158
159static void enetc_taprio_stats(struct net_device *ndev,
160 struct tc_taprio_qopt_stats *stats)
161{
162 struct enetc_ndev_priv *priv = netdev_priv(ndev);
163 u64 window_drops = 0;
164 int i;
165
166 for (i = 0; i < priv->num_tx_rings; i++)
167 window_drops += priv->tx_ring[i]->stats.win_drop;
168
169 stats->window_drops = window_drops;
170}
171
172static void enetc_taprio_queue_stats(struct net_device *ndev,
173 struct tc_taprio_qopt_queue_stats *queue_stats)
174{
175 struct tc_taprio_qopt_stats *stats = &queue_stats->stats;
176 struct enetc_ndev_priv *priv = netdev_priv(ndev);
177 int queue = queue_stats->queue;
178
179 stats->window_drops = priv->tx_ring[queue]->stats.win_drop;
180}
181
182static int enetc_taprio_replace(struct net_device *ndev,
183 struct tc_taprio_qopt_offload *offload)
184{
185 struct enetc_ndev_priv *priv = netdev_priv(ndev);
186 int err;
187
188 err = enetc_setup_tc_mqprio(ndev, &offload->mqprio);
189 if (err)
190 return err;
191
192 err = enetc_setup_taprio(priv, offload);
193 if (err)
194 enetc_reset_tc_mqprio(ndev);
195
196 return err;
197}
198
199int enetc_setup_tc_taprio(struct net_device *ndev, void *type_data)
200{
201 struct tc_taprio_qopt_offload *offload = type_data;
202 int err = 0;
203
204 switch (offload->cmd) {
205 case TAPRIO_CMD_REPLACE:
206 err = enetc_taprio_replace(ndev, offload);
207 break;
208 case TAPRIO_CMD_DESTROY:
209 enetc_taprio_destroy(ndev);
210 break;
211 case TAPRIO_CMD_STATS:
212 enetc_taprio_stats(ndev, &offload->stats);
213 break;
214 case TAPRIO_CMD_QUEUE_STATS:
215 enetc_taprio_queue_stats(ndev, &offload->queue_stats);
216 break;
217 default:
218 err = -EOPNOTSUPP;
219 }
220
221 return err;
222}
223
224static u32 enetc_get_cbs_enable(struct enetc_hw *hw, u8 tc)
225{
226 return enetc_port_rd(hw, ENETC_PTCCBSR0(tc)) & ENETC_CBSE;
227}
228
229static u8 enetc_get_cbs_bw(struct enetc_hw *hw, u8 tc)
230{
231 return enetc_port_rd(hw, ENETC_PTCCBSR0(tc)) & ENETC_CBS_BW_MASK;
232}
233
234int enetc_setup_tc_cbs(struct net_device *ndev, void *type_data)
235{
236 struct enetc_ndev_priv *priv = netdev_priv(ndev);
237 struct tc_cbs_qopt_offload *cbs = type_data;
238 u32 port_transmit_rate = priv->speed;
239 u8 tc_nums = netdev_get_num_tc(ndev);
240 struct enetc_hw *hw = &priv->si->hw;
241 u32 hi_credit_bit, hi_credit_reg;
242 u32 max_interference_size;
243 u32 port_frame_max_size;
244 u8 tc = cbs->queue;
245 u8 prio_top, prio_next;
246 int bw_sum = 0;
247 u8 bw;
248
249 prio_top = tc_nums - 1;
250 prio_next = tc_nums - 2;
251
252 /* Support highest prio and second prio tc in cbs mode */
253 if (tc != prio_top && tc != prio_next)
254 return -EOPNOTSUPP;
255
256 if (!cbs->enable) {
257 /* Make sure the other TC that are numerically
258 * lower than this TC have been disabled.
259 */
260 if (tc == prio_top &&
261 enetc_get_cbs_enable(hw, prio_next)) {
262 dev_err(&ndev->dev,
263 "Disable TC%d before disable TC%d\n",
264 prio_next, tc);
265 return -EINVAL;
266 }
267
268 enetc_port_wr(hw, ENETC_PTCCBSR1(tc), 0);
269 enetc_port_wr(hw, ENETC_PTCCBSR0(tc), 0);
270
271 return 0;
272 }
273
274 if (cbs->idleslope - cbs->sendslope != port_transmit_rate * 1000L ||
275 cbs->idleslope < 0 || cbs->sendslope > 0)
276 return -EOPNOTSUPP;
277
278 port_frame_max_size = ndev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
279
280 bw = cbs->idleslope / (port_transmit_rate * 10UL);
281
282 /* Make sure the other TC that are numerically
283 * higher than this TC have been enabled.
284 */
285 if (tc == prio_next) {
286 if (!enetc_get_cbs_enable(hw, prio_top)) {
287 dev_err(&ndev->dev,
288 "Enable TC%d first before enable TC%d\n",
289 prio_top, prio_next);
290 return -EINVAL;
291 }
292 bw_sum += enetc_get_cbs_bw(hw, prio_top);
293 }
294
295 if (bw_sum + bw >= 100) {
296 dev_err(&ndev->dev,
297 "The sum of all CBS Bandwidth can't exceed 100\n");
298 return -EINVAL;
299 }
300
301 enetc_port_rd(hw, ENETC_PTCMSDUR(tc));
302
303 /* For top prio TC, the max_interfrence_size is maxSizedFrame.
304 *
305 * For next prio TC, the max_interfrence_size is calculated as below:
306 *
307 * max_interference_size = M0 + Ma + Ra * M0 / (R0 - Ra)
308 *
309 * - RA: idleSlope for AVB Class A
310 * - R0: port transmit rate
311 * - M0: maximum sized frame for the port
312 * - MA: maximum sized frame for AVB Class A
313 */
314
315 if (tc == prio_top) {
316 max_interference_size = port_frame_max_size * 8;
317 } else {
318 u32 m0, ma, r0, ra;
319
320 m0 = port_frame_max_size * 8;
321 ma = enetc_port_rd(hw, ENETC_PTCMSDUR(prio_top)) * 8;
322 ra = enetc_get_cbs_bw(hw, prio_top) *
323 port_transmit_rate * 10000ULL;
324 r0 = port_transmit_rate * 1000000ULL;
325 max_interference_size = m0 + ma +
326 (u32)div_u64((u64)ra * m0, r0 - ra);
327 }
328
329 /* hiCredit bits calculate by:
330 *
331 * maxSizedFrame * (idleSlope/portTxRate)
332 */
333 hi_credit_bit = max_interference_size * bw / 100;
334
335 /* hiCredit bits to hiCredit register need to calculated as:
336 *
337 * (enetClockFrequency / portTransmitRate) * 100
338 */
339 hi_credit_reg = (u32)div_u64((ENETC_CLK * 100ULL) * hi_credit_bit,
340 port_transmit_rate * 1000000ULL);
341
342 enetc_port_wr(hw, ENETC_PTCCBSR1(tc), hi_credit_reg);
343
344 /* Set bw register and enable this traffic class */
345 enetc_port_wr(hw, ENETC_PTCCBSR0(tc), bw | ENETC_CBSE);
346
347 return 0;
348}
349
350int enetc_setup_tc_txtime(struct net_device *ndev, void *type_data)
351{
352 struct enetc_ndev_priv *priv = netdev_priv(ndev);
353 struct tc_etf_qopt_offload *qopt = type_data;
354 u8 tc_nums = netdev_get_num_tc(ndev);
355 struct enetc_hw *hw = &priv->si->hw;
356 int tc;
357
358 if (!tc_nums)
359 return -EOPNOTSUPP;
360
361 tc = qopt->queue;
362
363 if (tc < 0 || tc >= priv->num_tx_rings)
364 return -EINVAL;
365
366 /* TSD and Qbv are mutually exclusive in hardware */
367 if (enetc_rd(hw, ENETC_PTGCR) & ENETC_PTGCR_TGE)
368 return -EBUSY;
369
370 priv->tx_ring[tc]->tsd_enable = qopt->enable;
371 enetc_port_wr(hw, ENETC_PTCTSDR(tc), qopt->enable ? ENETC_TSDE : 0);
372
373 return 0;
374}
375
376enum streamid_type {
377 STREAMID_TYPE_RESERVED = 0,
378 STREAMID_TYPE_NULL,
379 STREAMID_TYPE_SMAC,
380};
381
382enum streamid_vlan_tagged {
383 STREAMID_VLAN_RESERVED = 0,
384 STREAMID_VLAN_TAGGED,
385 STREAMID_VLAN_UNTAGGED,
386 STREAMID_VLAN_ALL,
387};
388
389#define ENETC_PSFP_WILDCARD -1
390#define HANDLE_OFFSET 100
391
392enum forward_type {
393 FILTER_ACTION_TYPE_PSFP = BIT(0),
394 FILTER_ACTION_TYPE_ACL = BIT(1),
395 FILTER_ACTION_TYPE_BOTH = GENMASK(1, 0),
396};
397
398/* This is for limit output type for input actions */
399struct actions_fwd {
400 u64 actions;
401 u64 keys; /* include the must needed keys */
402 enum forward_type output;
403};
404
405struct psfp_streamfilter_counters {
406 u64 matching_frames_count;
407 u64 passing_frames_count;
408 u64 not_passing_frames_count;
409 u64 passing_sdu_count;
410 u64 not_passing_sdu_count;
411 u64 red_frames_count;
412};
413
414struct enetc_streamid {
415 u32 index;
416 union {
417 u8 src_mac[6];
418 u8 dst_mac[6];
419 };
420 u8 filtertype;
421 u16 vid;
422 u8 tagged;
423 s32 handle;
424};
425
426struct enetc_psfp_filter {
427 u32 index;
428 s32 handle;
429 s8 prio;
430 u32 maxsdu;
431 u32 gate_id;
432 s32 meter_id;
433 refcount_t refcount;
434 struct hlist_node node;
435};
436
437struct enetc_psfp_gate {
438 u32 index;
439 s8 init_ipv;
440 u64 basetime;
441 u64 cycletime;
442 u64 cycletimext;
443 u32 num_entries;
444 refcount_t refcount;
445 struct hlist_node node;
446 struct action_gate_entry entries[] __counted_by(num_entries);
447};
448
449/* Only enable the green color frame now
450 * Will add eir and ebs color blind, couple flag etc when
451 * policing action add more offloading parameters
452 */
453struct enetc_psfp_meter {
454 u32 index;
455 u32 cir;
456 u32 cbs;
457 refcount_t refcount;
458 struct hlist_node node;
459};
460
461#define ENETC_PSFP_FLAGS_FMI BIT(0)
462
463struct enetc_stream_filter {
464 struct enetc_streamid sid;
465 u32 sfi_index;
466 u32 sgi_index;
467 u32 flags;
468 u32 fmi_index;
469 struct flow_stats stats;
470 struct hlist_node node;
471};
472
473struct enetc_psfp {
474 unsigned long dev_bitmap;
475 unsigned long *psfp_sfi_bitmap;
476 struct hlist_head stream_list;
477 struct hlist_head psfp_filter_list;
478 struct hlist_head psfp_gate_list;
479 struct hlist_head psfp_meter_list;
480 spinlock_t psfp_lock; /* spinlock for the struct enetc_psfp r/w */
481};
482
483static struct actions_fwd enetc_act_fwd[] = {
484 {
485 BIT(FLOW_ACTION_GATE),
486 BIT_ULL(FLOW_DISSECTOR_KEY_ETH_ADDRS),
487 FILTER_ACTION_TYPE_PSFP
488 },
489 {
490 BIT(FLOW_ACTION_POLICE) |
491 BIT(FLOW_ACTION_GATE),
492 BIT_ULL(FLOW_DISSECTOR_KEY_ETH_ADDRS),
493 FILTER_ACTION_TYPE_PSFP
494 },
495 /* example for ACL actions */
496 {
497 BIT(FLOW_ACTION_DROP),
498 0,
499 FILTER_ACTION_TYPE_ACL
500 }
501};
502
503static struct enetc_psfp epsfp = {
504 .dev_bitmap = 0,
505 .psfp_sfi_bitmap = NULL,
506};
507
508static LIST_HEAD(enetc_block_cb_list);
509
510/* Stream Identity Entry Set Descriptor */
511static int enetc_streamid_hw_set(struct enetc_ndev_priv *priv,
512 struct enetc_streamid *sid,
513 u8 enable)
514{
515 struct enetc_cbd cbd = {.cmd = 0};
516 struct streamid_data *si_data;
517 struct streamid_conf *si_conf;
518 dma_addr_t dma;
519 u16 data_size;
520 void *tmp;
521 int port;
522 int err;
523
524 port = enetc_pf_to_port(priv->si->pdev);
525 if (port < 0)
526 return -EINVAL;
527
528 if (sid->index >= priv->psfp_cap.max_streamid)
529 return -EINVAL;
530
531 if (sid->filtertype != STREAMID_TYPE_NULL &&
532 sid->filtertype != STREAMID_TYPE_SMAC)
533 return -EOPNOTSUPP;
534
535 /* Disable operation before enable */
536 cbd.index = cpu_to_le16((u16)sid->index);
537 cbd.cls = BDCR_CMD_STREAM_IDENTIFY;
538 cbd.status_flags = 0;
539
540 data_size = sizeof(struct streamid_data);
541 tmp = enetc_cbd_alloc_data_mem(priv->si, &cbd, data_size,
542 &dma, (void *)&si_data);
543 if (!tmp)
544 return -ENOMEM;
545
546 eth_broadcast_addr(si_data->dmac);
547 si_data->vid_vidm_tg = (ENETC_CBDR_SID_VID_MASK
548 + ((0x3 << 14) | ENETC_CBDR_SID_VIDM));
549
550 si_conf = &cbd.sid_set;
551 /* Only one port supported for one entry, set itself */
552 si_conf->iports = cpu_to_le32(1 << port);
553 si_conf->id_type = 1;
554 si_conf->oui[2] = 0x0;
555 si_conf->oui[1] = 0x80;
556 si_conf->oui[0] = 0xC2;
557
558 err = enetc_send_cmd(priv->si, &cbd);
559 if (err)
560 goto out;
561
562 if (!enable)
563 goto out;
564
565 /* Enable the entry overwrite again incase space flushed by hardware */
566 cbd.status_flags = 0;
567
568 si_conf->en = 0x80;
569 si_conf->stream_handle = cpu_to_le32(sid->handle);
570 si_conf->iports = cpu_to_le32(1 << port);
571 si_conf->id_type = sid->filtertype;
572 si_conf->oui[2] = 0x0;
573 si_conf->oui[1] = 0x80;
574 si_conf->oui[0] = 0xC2;
575
576 memset(si_data, 0, data_size);
577
578 /* VIDM default to be 1.
579 * VID Match. If set (b1) then the VID must match, otherwise
580 * any VID is considered a match. VIDM setting is only used
581 * when TG is set to b01.
582 */
583 if (si_conf->id_type == STREAMID_TYPE_NULL) {
584 ether_addr_copy(si_data->dmac, sid->dst_mac);
585 si_data->vid_vidm_tg = (sid->vid & ENETC_CBDR_SID_VID_MASK) +
586 ((((u16)(sid->tagged) & 0x3) << 14)
587 | ENETC_CBDR_SID_VIDM);
588 } else if (si_conf->id_type == STREAMID_TYPE_SMAC) {
589 ether_addr_copy(si_data->smac, sid->src_mac);
590 si_data->vid_vidm_tg = (sid->vid & ENETC_CBDR_SID_VID_MASK) +
591 ((((u16)(sid->tagged) & 0x3) << 14)
592 | ENETC_CBDR_SID_VIDM);
593 }
594
595 err = enetc_send_cmd(priv->si, &cbd);
596out:
597 enetc_cbd_free_data_mem(priv->si, data_size, tmp, &dma);
598
599 return err;
600}
601
602/* Stream Filter Instance Set Descriptor */
603static int enetc_streamfilter_hw_set(struct enetc_ndev_priv *priv,
604 struct enetc_psfp_filter *sfi,
605 u8 enable)
606{
607 struct enetc_cbd cbd = {.cmd = 0};
608 struct sfi_conf *sfi_config;
609 int port;
610
611 port = enetc_pf_to_port(priv->si->pdev);
612 if (port < 0)
613 return -EINVAL;
614
615 cbd.index = cpu_to_le16(sfi->index);
616 cbd.cls = BDCR_CMD_STREAM_FILTER;
617 cbd.status_flags = 0x80;
618 cbd.length = cpu_to_le16(1);
619
620 sfi_config = &cbd.sfi_conf;
621 if (!enable)
622 goto exit;
623
624 sfi_config->en = 0x80;
625
626 if (sfi->handle >= 0) {
627 sfi_config->stream_handle =
628 cpu_to_le32(sfi->handle);
629 sfi_config->sthm |= 0x80;
630 }
631
632 sfi_config->sg_inst_table_index = cpu_to_le16(sfi->gate_id);
633 sfi_config->input_ports = cpu_to_le32(1 << port);
634
635 /* The priority value which may be matched against the
636 * frame’s priority value to determine a match for this entry.
637 */
638 if (sfi->prio >= 0)
639 sfi_config->multi |= (sfi->prio & 0x7) | 0x8;
640
641 /* Filter Type. Identifies the contents of the MSDU/FM_INST_INDEX
642 * field as being either an MSDU value or an index into the Flow
643 * Meter Instance table.
644 */
645 if (sfi->maxsdu) {
646 sfi_config->msdu =
647 cpu_to_le16(sfi->maxsdu);
648 sfi_config->multi |= 0x40;
649 }
650
651 if (sfi->meter_id >= 0) {
652 sfi_config->fm_inst_table_index = cpu_to_le16(sfi->meter_id);
653 sfi_config->multi |= 0x80;
654 }
655
656exit:
657 return enetc_send_cmd(priv->si, &cbd);
658}
659
660static int enetc_streamcounter_hw_get(struct enetc_ndev_priv *priv,
661 u32 index,
662 struct psfp_streamfilter_counters *cnt)
663{
664 struct enetc_cbd cbd = { .cmd = 2 };
665 struct sfi_counter_data *data_buf;
666 dma_addr_t dma;
667 u16 data_size;
668 void *tmp;
669 int err;
670
671 cbd.index = cpu_to_le16((u16)index);
672 cbd.cmd = 2;
673 cbd.cls = BDCR_CMD_STREAM_FILTER;
674 cbd.status_flags = 0;
675
676 data_size = sizeof(struct sfi_counter_data);
677
678 tmp = enetc_cbd_alloc_data_mem(priv->si, &cbd, data_size,
679 &dma, (void *)&data_buf);
680 if (!tmp)
681 return -ENOMEM;
682
683 err = enetc_send_cmd(priv->si, &cbd);
684 if (err)
685 goto exit;
686
687 cnt->matching_frames_count = ((u64)data_buf->matchh << 32) +
688 data_buf->matchl;
689
690 cnt->not_passing_sdu_count = ((u64)data_buf->msdu_droph << 32) +
691 data_buf->msdu_dropl;
692
693 cnt->passing_sdu_count = cnt->matching_frames_count
694 - cnt->not_passing_sdu_count;
695
696 cnt->not_passing_frames_count =
697 ((u64)data_buf->stream_gate_droph << 32) +
698 data_buf->stream_gate_dropl;
699
700 cnt->passing_frames_count = cnt->matching_frames_count -
701 cnt->not_passing_sdu_count -
702 cnt->not_passing_frames_count;
703
704 cnt->red_frames_count = ((u64)data_buf->flow_meter_droph << 32) +
705 data_buf->flow_meter_dropl;
706
707exit:
708 enetc_cbd_free_data_mem(priv->si, data_size, tmp, &dma);
709
710 return err;
711}
712
713static u64 get_ptp_now(struct enetc_hw *hw)
714{
715 u64 now_lo, now_hi, now;
716
717 now_lo = enetc_rd(hw, ENETC_SICTR0);
718 now_hi = enetc_rd(hw, ENETC_SICTR1);
719 now = now_lo | now_hi << 32;
720
721 return now;
722}
723
724static int get_start_ns(u64 now, u64 cycle, u64 *start)
725{
726 u64 n;
727
728 if (!cycle)
729 return -EFAULT;
730
731 n = div64_u64(now, cycle);
732
733 *start = (n + 1) * cycle;
734
735 return 0;
736}
737
738/* Stream Gate Instance Set Descriptor */
739static int enetc_streamgate_hw_set(struct enetc_ndev_priv *priv,
740 struct enetc_psfp_gate *sgi,
741 u8 enable)
742{
743 struct enetc_cbd cbd = { .cmd = 0 };
744 struct sgi_table *sgi_config;
745 struct sgcl_conf *sgcl_config;
746 struct sgcl_data *sgcl_data;
747 struct sgce *sgce;
748 dma_addr_t dma;
749 u16 data_size;
750 int err, i;
751 void *tmp;
752 u64 now;
753
754 cbd.index = cpu_to_le16(sgi->index);
755 cbd.cmd = 0;
756 cbd.cls = BDCR_CMD_STREAM_GCL;
757 cbd.status_flags = 0x80;
758
759 /* disable */
760 if (!enable)
761 return enetc_send_cmd(priv->si, &cbd);
762
763 if (!sgi->num_entries)
764 return 0;
765
766 if (sgi->num_entries > priv->psfp_cap.max_psfp_gatelist ||
767 !sgi->cycletime)
768 return -EINVAL;
769
770 /* enable */
771 sgi_config = &cbd.sgi_table;
772
773 /* Keep open before gate list start */
774 sgi_config->ocgtst = 0x80;
775
776 sgi_config->oipv = (sgi->init_ipv < 0) ?
777 0x0 : ((sgi->init_ipv & 0x7) | 0x8);
778
779 sgi_config->en = 0x80;
780
781 /* Basic config */
782 err = enetc_send_cmd(priv->si, &cbd);
783 if (err)
784 return -EINVAL;
785
786 memset(&cbd, 0, sizeof(cbd));
787
788 cbd.index = cpu_to_le16(sgi->index);
789 cbd.cmd = 1;
790 cbd.cls = BDCR_CMD_STREAM_GCL;
791 cbd.status_flags = 0;
792
793 sgcl_config = &cbd.sgcl_conf;
794
795 sgcl_config->acl_len = (sgi->num_entries - 1) & 0x3;
796
797 data_size = struct_size(sgcl_data, sgcl, sgi->num_entries);
798 tmp = enetc_cbd_alloc_data_mem(priv->si, &cbd, data_size,
799 &dma, (void *)&sgcl_data);
800 if (!tmp)
801 return -ENOMEM;
802
803 sgce = &sgcl_data->sgcl[0];
804
805 sgcl_config->agtst = 0x80;
806
807 sgcl_data->ct = sgi->cycletime;
808 sgcl_data->cte = sgi->cycletimext;
809
810 if (sgi->init_ipv >= 0)
811 sgcl_config->aipv = (sgi->init_ipv & 0x7) | 0x8;
812
813 for (i = 0; i < sgi->num_entries; i++) {
814 struct action_gate_entry *from = &sgi->entries[i];
815 struct sgce *to = &sgce[i];
816
817 if (from->gate_state)
818 to->multi |= 0x10;
819
820 if (from->ipv >= 0)
821 to->multi |= ((from->ipv & 0x7) << 5) | 0x08;
822
823 if (from->maxoctets >= 0) {
824 to->multi |= 0x01;
825 to->msdu[0] = from->maxoctets & 0xFF;
826 to->msdu[1] = (from->maxoctets >> 8) & 0xFF;
827 to->msdu[2] = (from->maxoctets >> 16) & 0xFF;
828 }
829
830 to->interval = from->interval;
831 }
832
833 /* If basetime is less than now, calculate start time */
834 now = get_ptp_now(&priv->si->hw);
835
836 if (sgi->basetime < now) {
837 u64 start;
838
839 err = get_start_ns(now, sgi->cycletime, &start);
840 if (err)
841 goto exit;
842 sgcl_data->btl = lower_32_bits(start);
843 sgcl_data->bth = upper_32_bits(start);
844 } else {
845 u32 hi, lo;
846
847 hi = upper_32_bits(sgi->basetime);
848 lo = lower_32_bits(sgi->basetime);
849 sgcl_data->bth = hi;
850 sgcl_data->btl = lo;
851 }
852
853 err = enetc_send_cmd(priv->si, &cbd);
854
855exit:
856 enetc_cbd_free_data_mem(priv->si, data_size, tmp, &dma);
857 return err;
858}
859
860static int enetc_flowmeter_hw_set(struct enetc_ndev_priv *priv,
861 struct enetc_psfp_meter *fmi,
862 u8 enable)
863{
864 struct enetc_cbd cbd = { .cmd = 0 };
865 struct fmi_conf *fmi_config;
866 u64 temp = 0;
867
868 cbd.index = cpu_to_le16((u16)fmi->index);
869 cbd.cls = BDCR_CMD_FLOW_METER;
870 cbd.status_flags = 0x80;
871
872 if (!enable)
873 return enetc_send_cmd(priv->si, &cbd);
874
875 fmi_config = &cbd.fmi_conf;
876 fmi_config->en = 0x80;
877
878 if (fmi->cir) {
879 temp = (u64)8000 * fmi->cir;
880 temp = div_u64(temp, 3725);
881 }
882
883 fmi_config->cir = cpu_to_le32((u32)temp);
884 fmi_config->cbs = cpu_to_le32(fmi->cbs);
885
886 /* Default for eir ebs disable */
887 fmi_config->eir = 0;
888 fmi_config->ebs = 0;
889
890 /* Default:
891 * mark red disable
892 * drop on yellow disable
893 * color mode disable
894 * couple flag disable
895 */
896 fmi_config->conf = 0;
897
898 return enetc_send_cmd(priv->si, &cbd);
899}
900
901static struct enetc_stream_filter *enetc_get_stream_by_index(u32 index)
902{
903 struct enetc_stream_filter *f;
904
905 hlist_for_each_entry(f, &epsfp.stream_list, node)
906 if (f->sid.index == index)
907 return f;
908
909 return NULL;
910}
911
912static struct enetc_psfp_gate *enetc_get_gate_by_index(u32 index)
913{
914 struct enetc_psfp_gate *g;
915
916 hlist_for_each_entry(g, &epsfp.psfp_gate_list, node)
917 if (g->index == index)
918 return g;
919
920 return NULL;
921}
922
923static struct enetc_psfp_filter *enetc_get_filter_by_index(u32 index)
924{
925 struct enetc_psfp_filter *s;
926
927 hlist_for_each_entry(s, &epsfp.psfp_filter_list, node)
928 if (s->index == index)
929 return s;
930
931 return NULL;
932}
933
934static struct enetc_psfp_meter *enetc_get_meter_by_index(u32 index)
935{
936 struct enetc_psfp_meter *m;
937
938 hlist_for_each_entry(m, &epsfp.psfp_meter_list, node)
939 if (m->index == index)
940 return m;
941
942 return NULL;
943}
944
945static struct enetc_psfp_filter
946 *enetc_psfp_check_sfi(struct enetc_psfp_filter *sfi)
947{
948 struct enetc_psfp_filter *s;
949
950 hlist_for_each_entry(s, &epsfp.psfp_filter_list, node)
951 if (s->gate_id == sfi->gate_id &&
952 s->prio == sfi->prio &&
953 s->maxsdu == sfi->maxsdu &&
954 s->meter_id == sfi->meter_id)
955 return s;
956
957 return NULL;
958}
959
960static int enetc_get_free_index(struct enetc_ndev_priv *priv)
961{
962 u32 max_size = priv->psfp_cap.max_psfp_filter;
963 unsigned long index;
964
965 index = find_first_zero_bit(epsfp.psfp_sfi_bitmap, max_size);
966 if (index == max_size)
967 return -1;
968
969 return index;
970}
971
972static void stream_filter_unref(struct enetc_ndev_priv *priv, u32 index)
973{
974 struct enetc_psfp_filter *sfi;
975 u8 z;
976
977 sfi = enetc_get_filter_by_index(index);
978 WARN_ON(!sfi);
979 z = refcount_dec_and_test(&sfi->refcount);
980
981 if (z) {
982 enetc_streamfilter_hw_set(priv, sfi, false);
983 hlist_del(&sfi->node);
984 kfree(sfi);
985 clear_bit(index, epsfp.psfp_sfi_bitmap);
986 }
987}
988
989static void stream_gate_unref(struct enetc_ndev_priv *priv, u32 index)
990{
991 struct enetc_psfp_gate *sgi;
992 u8 z;
993
994 sgi = enetc_get_gate_by_index(index);
995 WARN_ON(!sgi);
996 z = refcount_dec_and_test(&sgi->refcount);
997 if (z) {
998 enetc_streamgate_hw_set(priv, sgi, false);
999 hlist_del(&sgi->node);
1000 kfree(sgi);
1001 }
1002}
1003
1004static void flow_meter_unref(struct enetc_ndev_priv *priv, u32 index)
1005{
1006 struct enetc_psfp_meter *fmi;
1007 u8 z;
1008
1009 fmi = enetc_get_meter_by_index(index);
1010 WARN_ON(!fmi);
1011 z = refcount_dec_and_test(&fmi->refcount);
1012 if (z) {
1013 enetc_flowmeter_hw_set(priv, fmi, false);
1014 hlist_del(&fmi->node);
1015 kfree(fmi);
1016 }
1017}
1018
1019static void remove_one_chain(struct enetc_ndev_priv *priv,
1020 struct enetc_stream_filter *filter)
1021{
1022 if (filter->flags & ENETC_PSFP_FLAGS_FMI)
1023 flow_meter_unref(priv, filter->fmi_index);
1024
1025 stream_gate_unref(priv, filter->sgi_index);
1026 stream_filter_unref(priv, filter->sfi_index);
1027
1028 hlist_del(&filter->node);
1029 kfree(filter);
1030}
1031
1032static int enetc_psfp_hw_set(struct enetc_ndev_priv *priv,
1033 struct enetc_streamid *sid,
1034 struct enetc_psfp_filter *sfi,
1035 struct enetc_psfp_gate *sgi,
1036 struct enetc_psfp_meter *fmi)
1037{
1038 int err;
1039
1040 err = enetc_streamid_hw_set(priv, sid, true);
1041 if (err)
1042 return err;
1043
1044 if (sfi) {
1045 err = enetc_streamfilter_hw_set(priv, sfi, true);
1046 if (err)
1047 goto revert_sid;
1048 }
1049
1050 err = enetc_streamgate_hw_set(priv, sgi, true);
1051 if (err)
1052 goto revert_sfi;
1053
1054 if (fmi) {
1055 err = enetc_flowmeter_hw_set(priv, fmi, true);
1056 if (err)
1057 goto revert_sgi;
1058 }
1059
1060 return 0;
1061
1062revert_sgi:
1063 enetc_streamgate_hw_set(priv, sgi, false);
1064revert_sfi:
1065 if (sfi)
1066 enetc_streamfilter_hw_set(priv, sfi, false);
1067revert_sid:
1068 enetc_streamid_hw_set(priv, sid, false);
1069 return err;
1070}
1071
1072static struct actions_fwd *
1073enetc_check_flow_actions(u64 acts, unsigned long long inputkeys)
1074{
1075 int i;
1076
1077 for (i = 0; i < ARRAY_SIZE(enetc_act_fwd); i++)
1078 if (acts == enetc_act_fwd[i].actions &&
1079 inputkeys & enetc_act_fwd[i].keys)
1080 return &enetc_act_fwd[i];
1081
1082 return NULL;
1083}
1084
1085static int enetc_psfp_policer_validate(const struct flow_action *action,
1086 const struct flow_action_entry *act,
1087 struct netlink_ext_ack *extack)
1088{
1089 if (act->police.exceed.act_id != FLOW_ACTION_DROP) {
1090 NL_SET_ERR_MSG_MOD(extack,
1091 "Offload not supported when exceed action is not drop");
1092 return -EOPNOTSUPP;
1093 }
1094
1095 if (act->police.notexceed.act_id != FLOW_ACTION_PIPE &&
1096 act->police.notexceed.act_id != FLOW_ACTION_ACCEPT) {
1097 NL_SET_ERR_MSG_MOD(extack,
1098 "Offload not supported when conform action is not pipe or ok");
1099 return -EOPNOTSUPP;
1100 }
1101
1102 if (act->police.notexceed.act_id == FLOW_ACTION_ACCEPT &&
1103 !flow_action_is_last_entry(action, act)) {
1104 NL_SET_ERR_MSG_MOD(extack,
1105 "Offload not supported when conform action is ok, but action is not last");
1106 return -EOPNOTSUPP;
1107 }
1108
1109 if (act->police.peakrate_bytes_ps ||
1110 act->police.avrate || act->police.overhead) {
1111 NL_SET_ERR_MSG_MOD(extack,
1112 "Offload not supported when peakrate/avrate/overhead is configured");
1113 return -EOPNOTSUPP;
1114 }
1115
1116 if (act->police.rate_pkt_ps) {
1117 NL_SET_ERR_MSG_MOD(extack,
1118 "QoS offload not support packets per second");
1119 return -EOPNOTSUPP;
1120 }
1121
1122 return 0;
1123}
1124
1125static int enetc_psfp_parse_clsflower(struct enetc_ndev_priv *priv,
1126 struct flow_cls_offload *f)
1127{
1128 struct flow_action_entry *entryg = NULL, *entryp = NULL;
1129 struct flow_rule *rule = flow_cls_offload_flow_rule(f);
1130 struct netlink_ext_ack *extack = f->common.extack;
1131 struct enetc_stream_filter *filter, *old_filter;
1132 struct enetc_psfp_meter *fmi = NULL, *old_fmi;
1133 struct enetc_psfp_filter *sfi, *old_sfi;
1134 struct enetc_psfp_gate *sgi, *old_sgi;
1135 struct flow_action_entry *entry;
1136 struct action_gate_entry *e;
1137 u8 sfi_overwrite = 0;
1138 int entries_size;
1139 int i, err;
1140
1141 if (f->common.chain_index >= priv->psfp_cap.max_streamid) {
1142 NL_SET_ERR_MSG_MOD(extack, "No Stream identify resource!");
1143 return -ENOSPC;
1144 }
1145
1146 flow_action_for_each(i, entry, &rule->action)
1147 if (entry->id == FLOW_ACTION_GATE)
1148 entryg = entry;
1149 else if (entry->id == FLOW_ACTION_POLICE)
1150 entryp = entry;
1151
1152 /* Not support without gate action */
1153 if (!entryg)
1154 return -EINVAL;
1155
1156 filter = kzalloc(sizeof(*filter), GFP_KERNEL);
1157 if (!filter)
1158 return -ENOMEM;
1159
1160 filter->sid.index = f->common.chain_index;
1161
1162 if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
1163 struct flow_match_eth_addrs match;
1164
1165 flow_rule_match_eth_addrs(rule, &match);
1166
1167 if (!is_zero_ether_addr(match.mask->dst) &&
1168 !is_zero_ether_addr(match.mask->src)) {
1169 NL_SET_ERR_MSG_MOD(extack,
1170 "Cannot match on both source and destination MAC");
1171 err = -EINVAL;
1172 goto free_filter;
1173 }
1174
1175 if (!is_zero_ether_addr(match.mask->dst)) {
1176 if (!is_broadcast_ether_addr(match.mask->dst)) {
1177 NL_SET_ERR_MSG_MOD(extack,
1178 "Masked matching on destination MAC not supported");
1179 err = -EINVAL;
1180 goto free_filter;
1181 }
1182 ether_addr_copy(filter->sid.dst_mac, match.key->dst);
1183 filter->sid.filtertype = STREAMID_TYPE_NULL;
1184 }
1185
1186 if (!is_zero_ether_addr(match.mask->src)) {
1187 if (!is_broadcast_ether_addr(match.mask->src)) {
1188 NL_SET_ERR_MSG_MOD(extack,
1189 "Masked matching on source MAC not supported");
1190 err = -EINVAL;
1191 goto free_filter;
1192 }
1193 ether_addr_copy(filter->sid.src_mac, match.key->src);
1194 filter->sid.filtertype = STREAMID_TYPE_SMAC;
1195 }
1196 } else {
1197 NL_SET_ERR_MSG_MOD(extack, "Unsupported, must include ETH_ADDRS");
1198 err = -EINVAL;
1199 goto free_filter;
1200 }
1201
1202 if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
1203 struct flow_match_vlan match;
1204
1205 flow_rule_match_vlan(rule, &match);
1206 if (match.mask->vlan_priority) {
1207 if (match.mask->vlan_priority !=
1208 (VLAN_PRIO_MASK >> VLAN_PRIO_SHIFT)) {
1209 NL_SET_ERR_MSG_MOD(extack, "Only full mask is supported for VLAN priority");
1210 err = -EINVAL;
1211 goto free_filter;
1212 }
1213 }
1214
1215 if (match.mask->vlan_id) {
1216 if (match.mask->vlan_id != VLAN_VID_MASK) {
1217 NL_SET_ERR_MSG_MOD(extack, "Only full mask is supported for VLAN id");
1218 err = -EINVAL;
1219 goto free_filter;
1220 }
1221
1222 filter->sid.vid = match.key->vlan_id;
1223 if (!filter->sid.vid)
1224 filter->sid.tagged = STREAMID_VLAN_UNTAGGED;
1225 else
1226 filter->sid.tagged = STREAMID_VLAN_TAGGED;
1227 }
1228 } else {
1229 filter->sid.tagged = STREAMID_VLAN_ALL;
1230 }
1231
1232 /* parsing gate action */
1233 if (entryg->hw_index >= priv->psfp_cap.max_psfp_gate) {
1234 NL_SET_ERR_MSG_MOD(extack, "No Stream Gate resource!");
1235 err = -ENOSPC;
1236 goto free_filter;
1237 }
1238
1239 if (entryg->gate.num_entries >= priv->psfp_cap.max_psfp_gatelist) {
1240 NL_SET_ERR_MSG_MOD(extack, "No Stream Gate resource!");
1241 err = -ENOSPC;
1242 goto free_filter;
1243 }
1244
1245 entries_size = struct_size(sgi, entries, entryg->gate.num_entries);
1246 sgi = kzalloc(entries_size, GFP_KERNEL);
1247 if (!sgi) {
1248 err = -ENOMEM;
1249 goto free_filter;
1250 }
1251
1252 refcount_set(&sgi->refcount, 1);
1253 sgi->index = entryg->hw_index;
1254 sgi->init_ipv = entryg->gate.prio;
1255 sgi->basetime = entryg->gate.basetime;
1256 sgi->cycletime = entryg->gate.cycletime;
1257 sgi->num_entries = entryg->gate.num_entries;
1258
1259 e = sgi->entries;
1260 for (i = 0; i < entryg->gate.num_entries; i++) {
1261 e[i].gate_state = entryg->gate.entries[i].gate_state;
1262 e[i].interval = entryg->gate.entries[i].interval;
1263 e[i].ipv = entryg->gate.entries[i].ipv;
1264 e[i].maxoctets = entryg->gate.entries[i].maxoctets;
1265 }
1266
1267 filter->sgi_index = sgi->index;
1268
1269 sfi = kzalloc(sizeof(*sfi), GFP_KERNEL);
1270 if (!sfi) {
1271 err = -ENOMEM;
1272 goto free_gate;
1273 }
1274
1275 refcount_set(&sfi->refcount, 1);
1276 sfi->gate_id = sgi->index;
1277 sfi->meter_id = ENETC_PSFP_WILDCARD;
1278
1279 /* Flow meter and max frame size */
1280 if (entryp) {
1281 err = enetc_psfp_policer_validate(&rule->action, entryp, extack);
1282 if (err)
1283 goto free_sfi;
1284
1285 if (entryp->police.burst) {
1286 fmi = kzalloc(sizeof(*fmi), GFP_KERNEL);
1287 if (!fmi) {
1288 err = -ENOMEM;
1289 goto free_sfi;
1290 }
1291 refcount_set(&fmi->refcount, 1);
1292 fmi->cir = entryp->police.rate_bytes_ps;
1293 fmi->cbs = entryp->police.burst;
1294 fmi->index = entryp->hw_index;
1295 filter->flags |= ENETC_PSFP_FLAGS_FMI;
1296 filter->fmi_index = fmi->index;
1297 sfi->meter_id = fmi->index;
1298 }
1299
1300 if (entryp->police.mtu)
1301 sfi->maxsdu = entryp->police.mtu;
1302 }
1303
1304 /* prio ref the filter prio */
1305 if (f->common.prio && f->common.prio <= BIT(3))
1306 sfi->prio = f->common.prio - 1;
1307 else
1308 sfi->prio = ENETC_PSFP_WILDCARD;
1309
1310 old_sfi = enetc_psfp_check_sfi(sfi);
1311 if (!old_sfi) {
1312 int index;
1313
1314 index = enetc_get_free_index(priv);
1315 if (index < 0) {
1316 NL_SET_ERR_MSG_MOD(extack, "No Stream Filter resource!");
1317 err = -ENOSPC;
1318 goto free_fmi;
1319 }
1320
1321 sfi->index = index;
1322 sfi->handle = index + HANDLE_OFFSET;
1323 /* Update the stream filter handle also */
1324 filter->sid.handle = sfi->handle;
1325 filter->sfi_index = sfi->index;
1326 sfi_overwrite = 0;
1327 } else {
1328 filter->sfi_index = old_sfi->index;
1329 filter->sid.handle = old_sfi->handle;
1330 sfi_overwrite = 1;
1331 }
1332
1333 err = enetc_psfp_hw_set(priv, &filter->sid,
1334 sfi_overwrite ? NULL : sfi, sgi, fmi);
1335 if (err)
1336 goto free_fmi;
1337
1338 spin_lock(&epsfp.psfp_lock);
1339 if (filter->flags & ENETC_PSFP_FLAGS_FMI) {
1340 old_fmi = enetc_get_meter_by_index(filter->fmi_index);
1341 if (old_fmi) {
1342 fmi->refcount = old_fmi->refcount;
1343 refcount_set(&fmi->refcount,
1344 refcount_read(&old_fmi->refcount) + 1);
1345 hlist_del(&old_fmi->node);
1346 kfree(old_fmi);
1347 }
1348 hlist_add_head(&fmi->node, &epsfp.psfp_meter_list);
1349 }
1350
1351 /* Remove the old node if exist and update with a new node */
1352 old_sgi = enetc_get_gate_by_index(filter->sgi_index);
1353 if (old_sgi) {
1354 refcount_set(&sgi->refcount,
1355 refcount_read(&old_sgi->refcount) + 1);
1356 hlist_del(&old_sgi->node);
1357 kfree(old_sgi);
1358 }
1359
1360 hlist_add_head(&sgi->node, &epsfp.psfp_gate_list);
1361
1362 if (!old_sfi) {
1363 hlist_add_head(&sfi->node, &epsfp.psfp_filter_list);
1364 set_bit(sfi->index, epsfp.psfp_sfi_bitmap);
1365 } else {
1366 kfree(sfi);
1367 refcount_inc(&old_sfi->refcount);
1368 }
1369
1370 old_filter = enetc_get_stream_by_index(filter->sid.index);
1371 if (old_filter)
1372 remove_one_chain(priv, old_filter);
1373
1374 filter->stats.lastused = jiffies;
1375 hlist_add_head(&filter->node, &epsfp.stream_list);
1376
1377 spin_unlock(&epsfp.psfp_lock);
1378
1379 return 0;
1380
1381free_fmi:
1382 kfree(fmi);
1383free_sfi:
1384 kfree(sfi);
1385free_gate:
1386 kfree(sgi);
1387free_filter:
1388 kfree(filter);
1389
1390 return err;
1391}
1392
1393static int enetc_config_clsflower(struct enetc_ndev_priv *priv,
1394 struct flow_cls_offload *cls_flower)
1395{
1396 struct flow_rule *rule = flow_cls_offload_flow_rule(cls_flower);
1397 struct netlink_ext_ack *extack = cls_flower->common.extack;
1398 struct flow_dissector *dissector = rule->match.dissector;
1399 struct flow_action *action = &rule->action;
1400 struct flow_action_entry *entry;
1401 struct actions_fwd *fwd;
1402 u64 actions = 0;
1403 int i, err;
1404
1405 if (!flow_action_has_entries(action)) {
1406 NL_SET_ERR_MSG_MOD(extack, "At least one action is needed");
1407 return -EINVAL;
1408 }
1409
1410 flow_action_for_each(i, entry, action)
1411 actions |= BIT(entry->id);
1412
1413 fwd = enetc_check_flow_actions(actions, dissector->used_keys);
1414 if (!fwd) {
1415 NL_SET_ERR_MSG_MOD(extack, "Unsupported filter type!");
1416 return -EOPNOTSUPP;
1417 }
1418
1419 if (fwd->output & FILTER_ACTION_TYPE_PSFP) {
1420 err = enetc_psfp_parse_clsflower(priv, cls_flower);
1421 if (err) {
1422 NL_SET_ERR_MSG_MOD(extack, "Invalid PSFP inputs");
1423 return err;
1424 }
1425 } else {
1426 NL_SET_ERR_MSG_MOD(extack, "Unsupported actions");
1427 return -EOPNOTSUPP;
1428 }
1429
1430 return 0;
1431}
1432
1433static int enetc_psfp_destroy_clsflower(struct enetc_ndev_priv *priv,
1434 struct flow_cls_offload *f)
1435{
1436 struct enetc_stream_filter *filter;
1437 struct netlink_ext_ack *extack = f->common.extack;
1438 int err;
1439
1440 if (f->common.chain_index >= priv->psfp_cap.max_streamid) {
1441 NL_SET_ERR_MSG_MOD(extack, "No Stream identify resource!");
1442 return -ENOSPC;
1443 }
1444
1445 filter = enetc_get_stream_by_index(f->common.chain_index);
1446 if (!filter)
1447 return -EINVAL;
1448
1449 err = enetc_streamid_hw_set(priv, &filter->sid, false);
1450 if (err)
1451 return err;
1452
1453 remove_one_chain(priv, filter);
1454
1455 return 0;
1456}
1457
1458static int enetc_destroy_clsflower(struct enetc_ndev_priv *priv,
1459 struct flow_cls_offload *f)
1460{
1461 return enetc_psfp_destroy_clsflower(priv, f);
1462}
1463
1464static int enetc_psfp_get_stats(struct enetc_ndev_priv *priv,
1465 struct flow_cls_offload *f)
1466{
1467 struct psfp_streamfilter_counters counters = {};
1468 struct enetc_stream_filter *filter;
1469 struct flow_stats stats = {};
1470 int err;
1471
1472 filter = enetc_get_stream_by_index(f->common.chain_index);
1473 if (!filter)
1474 return -EINVAL;
1475
1476 err = enetc_streamcounter_hw_get(priv, filter->sfi_index, &counters);
1477 if (err)
1478 return -EINVAL;
1479
1480 spin_lock(&epsfp.psfp_lock);
1481 stats.pkts = counters.matching_frames_count +
1482 counters.not_passing_sdu_count -
1483 filter->stats.pkts;
1484 stats.drops = counters.not_passing_frames_count +
1485 counters.not_passing_sdu_count +
1486 counters.red_frames_count -
1487 filter->stats.drops;
1488 stats.lastused = filter->stats.lastused;
1489 filter->stats.pkts += stats.pkts;
1490 filter->stats.drops += stats.drops;
1491 spin_unlock(&epsfp.psfp_lock);
1492
1493 flow_stats_update(&f->stats, 0x0, stats.pkts, stats.drops,
1494 stats.lastused, FLOW_ACTION_HW_STATS_DELAYED);
1495
1496 return 0;
1497}
1498
1499static int enetc_setup_tc_cls_flower(struct enetc_ndev_priv *priv,
1500 struct flow_cls_offload *cls_flower)
1501{
1502 switch (cls_flower->command) {
1503 case FLOW_CLS_REPLACE:
1504 return enetc_config_clsflower(priv, cls_flower);
1505 case FLOW_CLS_DESTROY:
1506 return enetc_destroy_clsflower(priv, cls_flower);
1507 case FLOW_CLS_STATS:
1508 return enetc_psfp_get_stats(priv, cls_flower);
1509 default:
1510 return -EOPNOTSUPP;
1511 }
1512}
1513
1514static inline void clean_psfp_sfi_bitmap(void)
1515{
1516 bitmap_free(epsfp.psfp_sfi_bitmap);
1517 epsfp.psfp_sfi_bitmap = NULL;
1518}
1519
1520static void clean_stream_list(void)
1521{
1522 struct enetc_stream_filter *s;
1523 struct hlist_node *tmp;
1524
1525 hlist_for_each_entry_safe(s, tmp, &epsfp.stream_list, node) {
1526 hlist_del(&s->node);
1527 kfree(s);
1528 }
1529}
1530
1531static void clean_sfi_list(void)
1532{
1533 struct enetc_psfp_filter *sfi;
1534 struct hlist_node *tmp;
1535
1536 hlist_for_each_entry_safe(sfi, tmp, &epsfp.psfp_filter_list, node) {
1537 hlist_del(&sfi->node);
1538 kfree(sfi);
1539 }
1540}
1541
1542static void clean_sgi_list(void)
1543{
1544 struct enetc_psfp_gate *sgi;
1545 struct hlist_node *tmp;
1546
1547 hlist_for_each_entry_safe(sgi, tmp, &epsfp.psfp_gate_list, node) {
1548 hlist_del(&sgi->node);
1549 kfree(sgi);
1550 }
1551}
1552
1553static void clean_psfp_all(void)
1554{
1555 /* Disable all list nodes and free all memory */
1556 clean_sfi_list();
1557 clean_sgi_list();
1558 clean_stream_list();
1559 epsfp.dev_bitmap = 0;
1560 clean_psfp_sfi_bitmap();
1561}
1562
1563int enetc_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
1564 void *cb_priv)
1565{
1566 struct net_device *ndev = cb_priv;
1567
1568 if (!tc_can_offload(ndev))
1569 return -EOPNOTSUPP;
1570
1571 switch (type) {
1572 case TC_SETUP_CLSFLOWER:
1573 return enetc_setup_tc_cls_flower(netdev_priv(ndev), type_data);
1574 default:
1575 return -EOPNOTSUPP;
1576 }
1577}
1578
1579int enetc_set_psfp(struct net_device *ndev, bool en)
1580{
1581 struct enetc_ndev_priv *priv = netdev_priv(ndev);
1582 int err;
1583
1584 if (en) {
1585 err = enetc_psfp_enable(priv);
1586 if (err)
1587 return err;
1588
1589 priv->active_offloads |= ENETC_F_QCI;
1590 return 0;
1591 }
1592
1593 err = enetc_psfp_disable(priv);
1594 if (err)
1595 return err;
1596
1597 priv->active_offloads &= ~ENETC_F_QCI;
1598
1599 return 0;
1600}
1601
1602int enetc_psfp_init(struct enetc_ndev_priv *priv)
1603{
1604 if (epsfp.psfp_sfi_bitmap)
1605 return 0;
1606
1607 epsfp.psfp_sfi_bitmap = bitmap_zalloc(priv->psfp_cap.max_psfp_filter,
1608 GFP_KERNEL);
1609 if (!epsfp.psfp_sfi_bitmap)
1610 return -ENOMEM;
1611
1612 spin_lock_init(&epsfp.psfp_lock);
1613
1614 if (list_empty(&enetc_block_cb_list))
1615 epsfp.dev_bitmap = 0;
1616
1617 return 0;
1618}
1619
1620int enetc_psfp_clean(struct enetc_ndev_priv *priv)
1621{
1622 if (!list_empty(&enetc_block_cb_list))
1623 return -EBUSY;
1624
1625 clean_psfp_all();
1626
1627 return 0;
1628}
1629
1630int enetc_setup_tc_psfp(struct net_device *ndev, void *type_data)
1631{
1632 struct enetc_ndev_priv *priv = netdev_priv(ndev);
1633 struct flow_block_offload *f = type_data;
1634 int port, err;
1635
1636 err = flow_block_cb_setup_simple(f, &enetc_block_cb_list,
1637 enetc_setup_tc_block_cb,
1638 ndev, ndev, true);
1639 if (err)
1640 return err;
1641
1642 switch (f->command) {
1643 case FLOW_BLOCK_BIND:
1644 port = enetc_pf_to_port(priv->si->pdev);
1645 if (port < 0)
1646 return -EINVAL;
1647
1648 set_bit(port, &epsfp.dev_bitmap);
1649 break;
1650 case FLOW_BLOCK_UNBIND:
1651 port = enetc_pf_to_port(priv->si->pdev);
1652 if (port < 0)
1653 return -EINVAL;
1654
1655 clear_bit(port, &epsfp.dev_bitmap);
1656 if (!epsfp.dev_bitmap)
1657 clean_psfp_all();
1658 break;
1659 }
1660
1661 return 0;
1662}
1663
1664int enetc_qos_query_caps(struct net_device *ndev, void *type_data)
1665{
1666 struct enetc_ndev_priv *priv = netdev_priv(ndev);
1667 struct tc_query_caps_base *base = type_data;
1668 struct enetc_si *si = priv->si;
1669
1670 switch (base->type) {
1671 case TC_SETUP_QDISC_MQPRIO: {
1672 struct tc_mqprio_caps *caps = base->caps;
1673
1674 caps->validate_queue_counts = true;
1675
1676 return 0;
1677 }
1678 case TC_SETUP_QDISC_TAPRIO: {
1679 struct tc_taprio_caps *caps = base->caps;
1680
1681 if (si->hw_features & ENETC_SI_F_QBV)
1682 caps->supports_queue_max_sdu = true;
1683
1684 return 0;
1685 }
1686 default:
1687 return -EOPNOTSUPP;
1688 }
1689}