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