1
2
3
4
5
6#include <linux/cdev.h>
7#include <linux/module.h>
8#include <linux/kernel.h>
9#include <linux/init.h>
10#include <linux/netdevice.h>
11#include <linux/etherdevice.h>
12#include <asm/cacheflush.h>
13#include <linux/platform_device.h>
14#include <linux/of.h>
15#include <linux/of_address.h>
16#include <linux/of_platform.h>
17#include <linux/of_irq.h>
18#include <linux/spinlock.h>
19
20#include "hns_dsaf_main.h"
21#include "hns_dsaf_ppe.h"
22#include "hns_dsaf_rcb.h"
23
24#define RCB_COMMON_REG_OFFSET 0x80000
25#define TX_RING 0
26#define RX_RING 1
27
28#define RCB_RESET_WAIT_TIMES 30
29#define RCB_RESET_TRY_TIMES 10
30
31
32#define RCB_DEFAULT_BUFFER_SIZE 2048
33
34
35
36
37
38
39
40void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag)
41{
42 int i, wait_cnt;
43 u32 fbd_num;
44
45 for (wait_cnt = i = 0; i < q_num; wait_cnt++) {
46 usleep_range(200, 300);
47 fbd_num = 0;
48 if (flag & RCB_INT_FLAG_TX)
49 fbd_num += dsaf_read_dev(qs[i],
50 RCB_RING_TX_RING_FBDNUM_REG);
51 if (flag & RCB_INT_FLAG_RX)
52 fbd_num += dsaf_read_dev(qs[i],
53 RCB_RING_RX_RING_FBDNUM_REG);
54 if (!fbd_num)
55 i++;
56 if (wait_cnt >= 10000)
57 break;
58 }
59
60 if (i < q_num)
61 dev_err(qs[i]->handle->owner_dev,
62 "queue(%d) wait fbd(%d) clean fail!!\n", i, fbd_num);
63}
64
65int hns_rcb_wait_tx_ring_clean(struct hnae_queue *qs)
66{
67 u32 head, tail;
68 int wait_cnt;
69
70 tail = dsaf_read_dev(&qs->tx_ring, RCB_REG_TAIL);
71 wait_cnt = 0;
72 while (wait_cnt++ < HNS_MAX_WAIT_CNT) {
73 head = dsaf_read_dev(&qs->tx_ring, RCB_REG_HEAD);
74 if (tail == head)
75 break;
76
77 usleep_range(100, 200);
78 }
79
80 if (wait_cnt >= HNS_MAX_WAIT_CNT) {
81 dev_err(qs->dev->dev, "rcb wait timeout, head not equal to tail.\n");
82 return -EBUSY;
83 }
84
85 return 0;
86}
87
88
89
90
91
92void hns_rcb_reset_ring_hw(struct hnae_queue *q)
93{
94 u32 wait_cnt;
95 u32 try_cnt = 0;
96 u32 could_ret;
97
98 u32 tx_fbd_num;
99
100 while (try_cnt++ < RCB_RESET_TRY_TIMES) {
101 usleep_range(100, 200);
102 tx_fbd_num = dsaf_read_dev(q, RCB_RING_TX_RING_FBDNUM_REG);
103 if (tx_fbd_num)
104 continue;
105
106 dsaf_write_dev(q, RCB_RING_PREFETCH_EN_REG, 0);
107
108 dsaf_write_dev(q, RCB_RING_T0_BE_RST, 1);
109
110 msleep(20);
111 could_ret = dsaf_read_dev(q, RCB_RING_COULD_BE_RST);
112
113 wait_cnt = 0;
114 while (!could_ret && (wait_cnt < RCB_RESET_WAIT_TIMES)) {
115 dsaf_write_dev(q, RCB_RING_T0_BE_RST, 0);
116
117 dsaf_write_dev(q, RCB_RING_T0_BE_RST, 1);
118
119 msleep(20);
120 could_ret = dsaf_read_dev(q, RCB_RING_COULD_BE_RST);
121
122 wait_cnt++;
123 }
124
125 dsaf_write_dev(q, RCB_RING_T0_BE_RST, 0);
126
127 if (could_ret)
128 break;
129 }
130
131 if (try_cnt >= RCB_RESET_TRY_TIMES)
132 dev_err(q->dev->dev, "port%d reset ring fail\n",
133 hns_ae_get_vf_cb(q->handle)->port_index);
134}
135
136
137
138
139
140
141
142void hns_rcb_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 mask)
143{
144 u32 int_mask_en = !!mask;
145
146 if (flag & RCB_INT_FLAG_TX) {
147 dsaf_write_dev(q, RCB_RING_INTMSK_TXWL_REG, int_mask_en);
148 dsaf_write_dev(q, RCB_RING_INTMSK_TX_OVERTIME_REG,
149 int_mask_en);
150 }
151
152 if (flag & RCB_INT_FLAG_RX) {
153 dsaf_write_dev(q, RCB_RING_INTMSK_RXWL_REG, int_mask_en);
154 dsaf_write_dev(q, RCB_RING_INTMSK_RX_OVERTIME_REG,
155 int_mask_en);
156 }
157}
158
159void hns_rcb_int_clr_hw(struct hnae_queue *q, u32 flag)
160{
161 if (flag & RCB_INT_FLAG_TX) {
162 dsaf_write_dev(q, RCB_RING_INTSTS_TX_RING_REG, 1);
163 dsaf_write_dev(q, RCB_RING_INTSTS_TX_OVERTIME_REG, 1);
164 }
165
166 if (flag & RCB_INT_FLAG_RX) {
167 dsaf_write_dev(q, RCB_RING_INTSTS_RX_RING_REG, 1);
168 dsaf_write_dev(q, RCB_RING_INTSTS_RX_OVERTIME_REG, 1);
169 }
170}
171
172void hns_rcbv2_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 mask)
173{
174 u32 int_mask_en = !!mask;
175
176 if (flag & RCB_INT_FLAG_TX)
177 dsaf_write_dev(q, RCB_RING_INTMSK_TXWL_REG, int_mask_en);
178
179 if (flag & RCB_INT_FLAG_RX)
180 dsaf_write_dev(q, RCB_RING_INTMSK_RXWL_REG, int_mask_en);
181}
182
183void hns_rcbv2_int_clr_hw(struct hnae_queue *q, u32 flag)
184{
185 if (flag & RCB_INT_FLAG_TX)
186 dsaf_write_dev(q, RCBV2_TX_RING_INT_STS_REG, 1);
187
188 if (flag & RCB_INT_FLAG_RX)
189 dsaf_write_dev(q, RCBV2_RX_RING_INT_STS_REG, 1);
190}
191
192
193
194
195
196
197void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val)
198{
199 dsaf_write_dev(q, RCB_RING_PREFETCH_EN_REG, !!val);
200}
201
202void hns_rcb_start(struct hnae_queue *q, u32 val)
203{
204 hns_rcb_ring_enable_hw(q, val);
205}
206
207
208
209
210
211void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common)
212{
213 wmb();
214 dsaf_write_dev(rcb_common, RCB_COM_CFG_SYS_FSH_REG, 1);
215 wmb();
216}
217
218
219
220
221
222void hns_rcb_set_tx_ring_bs(struct hnae_queue *q, u32 buf_size)
223{
224 u32 bd_size_type = hns_rcb_buf_size2type(buf_size);
225
226 dsaf_write_dev(q, RCB_RING_TX_RING_BD_LEN_REG,
227 bd_size_type);
228}
229
230
231
232
233
234void hns_rcb_set_rx_ring_bs(struct hnae_queue *q, u32 buf_size)
235{
236 u32 bd_size_type = hns_rcb_buf_size2type(buf_size);
237
238 dsaf_write_dev(q, RCB_RING_RX_RING_BD_LEN_REG,
239 bd_size_type);
240}
241
242
243
244
245
246
247static void hns_rcb_ring_init(struct ring_pair_cb *ring_pair, int ring_type)
248{
249 struct hnae_queue *q = &ring_pair->q;
250 struct hnae_ring *ring =
251 (ring_type == RX_RING) ? &q->rx_ring : &q->tx_ring;
252 dma_addr_t dma = ring->desc_dma_addr;
253
254 if (ring_type == RX_RING) {
255 dsaf_write_dev(q, RCB_RING_RX_RING_BASEADDR_L_REG,
256 (u32)dma);
257 dsaf_write_dev(q, RCB_RING_RX_RING_BASEADDR_H_REG,
258 (u32)((dma >> 31) >> 1));
259
260 hns_rcb_set_rx_ring_bs(q, ring->buf_size);
261
262 dsaf_write_dev(q, RCB_RING_RX_RING_BD_NUM_REG,
263 ring_pair->port_id_in_comm);
264 dsaf_write_dev(q, RCB_RING_RX_RING_PKTLINE_REG,
265 ring_pair->port_id_in_comm);
266 } else {
267 dsaf_write_dev(q, RCB_RING_TX_RING_BASEADDR_L_REG,
268 (u32)dma);
269 dsaf_write_dev(q, RCB_RING_TX_RING_BASEADDR_H_REG,
270 (u32)((dma >> 31) >> 1));
271
272 hns_rcb_set_tx_ring_bs(q, ring->buf_size);
273
274 dsaf_write_dev(q, RCB_RING_TX_RING_BD_NUM_REG,
275 ring_pair->port_id_in_comm);
276 dsaf_write_dev(q, RCB_RING_TX_RING_PKTLINE_REG,
277 ring_pair->port_id_in_comm + HNS_RCB_TX_PKTLINE_OFFSET);
278 }
279}
280
281
282
283
284
285void hns_rcb_init_hw(struct ring_pair_cb *ring)
286{
287 hns_rcb_ring_init(ring, RX_RING);
288 hns_rcb_ring_init(ring, TX_RING);
289}
290
291
292
293
294
295
296
297static void hns_rcb_set_port_desc_cnt(struct rcb_common_cb *rcb_common,
298 u32 port_idx, u32 desc_cnt)
299{
300 dsaf_write_dev(rcb_common, RCB_CFG_BD_NUM_REG + port_idx * 4,
301 desc_cnt);
302}
303
304static void hns_rcb_set_port_timeout(
305 struct rcb_common_cb *rcb_common, u32 port_idx, u32 timeout)
306{
307 if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
308 dsaf_write_dev(rcb_common, RCB_CFG_OVERTIME_REG,
309 timeout * HNS_RCB_CLK_FREQ_MHZ);
310 } else if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev)) {
311 if (timeout > HNS_RCB_DEF_GAP_TIME_USECS)
312 dsaf_write_dev(rcb_common,
313 RCB_PORT_INT_GAPTIME_REG + port_idx * 4,
314 HNS_RCB_DEF_GAP_TIME_USECS);
315 else
316 dsaf_write_dev(rcb_common,
317 RCB_PORT_INT_GAPTIME_REG + port_idx * 4,
318 timeout);
319
320 dsaf_write_dev(rcb_common,
321 RCB_PORT_CFG_OVERTIME_REG + port_idx * 4,
322 timeout);
323 } else {
324 dsaf_write_dev(rcb_common,
325 RCB_PORT_CFG_OVERTIME_REG + port_idx * 4,
326 timeout);
327 }
328}
329
330static int hns_rcb_common_get_port_num(struct rcb_common_cb *rcb_common)
331{
332 if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev))
333 return HNS_RCB_SERVICE_NW_ENGINE_NUM;
334 else
335 return HNS_RCB_DEBUG_NW_ENGINE_NUM;
336}
337
338
339static void hns_rcb_comm_exc_irq_en(
340 struct rcb_common_cb *rcb_common, int en)
341{
342 u32 clr_vlue = 0xfffffffful;
343 u32 msk_vlue = en ? 0 : 0xfffffffful;
344
345
346 dsaf_write_dev(rcb_common, RCB_COM_INTSTS_ECC_ERR_REG, clr_vlue);
347
348 dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_RING_STS, clr_vlue);
349
350 dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_BD_RINT_STS, clr_vlue);
351
352 dsaf_write_dev(rcb_common, RCB_COM_RINT_TX_PKT_REG, clr_vlue);
353 dsaf_write_dev(rcb_common, RCB_COM_AXI_ERR_STS, clr_vlue);
354
355
356 dsaf_write_dev(rcb_common, RCB_COM_INTMASK_ECC_ERR_REG, msk_vlue);
357
358 dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_INTMASK_RING, msk_vlue);
359
360
361 dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_INTMASK_BD, msk_vlue | 2);
362
363 dsaf_write_dev(rcb_common, RCB_COM_INTMSK_TX_PKT_REG, msk_vlue);
364 dsaf_write_dev(rcb_common, RCB_COM_AXI_WR_ERR_INTMASK, msk_vlue);
365}
366
367
368
369
370
371
372int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common)
373{
374 u32 reg_val;
375 int i;
376 int port_num = hns_rcb_common_get_port_num(rcb_common);
377
378 hns_rcb_comm_exc_irq_en(rcb_common, 0);
379
380 reg_val = dsaf_read_dev(rcb_common, RCB_COM_CFG_INIT_FLAG_REG);
381 if (0x1 != (reg_val & 0x1)) {
382 dev_err(rcb_common->dsaf_dev->dev,
383 "RCB_COM_CFG_INIT_FLAG_REG reg = 0x%x\n", reg_val);
384 return -EBUSY;
385 }
386
387 for (i = 0; i < port_num; i++) {
388 hns_rcb_set_port_desc_cnt(rcb_common, i, rcb_common->desc_num);
389 hns_rcb_set_rx_coalesced_frames(
390 rcb_common, i, HNS_RCB_DEF_RX_COALESCED_FRAMES);
391 if (!AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver) &&
392 !HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev))
393 hns_rcb_set_tx_coalesced_frames(
394 rcb_common, i, HNS_RCB_DEF_TX_COALESCED_FRAMES);
395 hns_rcb_set_port_timeout(
396 rcb_common, i, HNS_RCB_DEF_COALESCED_USECS);
397 }
398
399 dsaf_write_dev(rcb_common, RCB_COM_CFG_ENDIAN_REG,
400 HNS_RCB_COMMON_ENDIAN);
401
402 if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
403 dsaf_write_dev(rcb_common, RCB_COM_CFG_FNA_REG, 0x0);
404 dsaf_write_dev(rcb_common, RCB_COM_CFG_FA_REG, 0x1);
405 } else {
406 dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_USER_REG,
407 RCB_COM_CFG_FNA_B, false);
408 dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_USER_REG,
409 RCB_COM_CFG_FA_B, true);
410 dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_TSO_MODE_REG,
411 RCB_COM_TSO_MODE_B, HNS_TSO_MODE_8BD_32K);
412 }
413
414 return 0;
415}
416
417int hns_rcb_buf_size2type(u32 buf_size)
418{
419 int bd_size_type;
420
421 switch (buf_size) {
422 case 512:
423 bd_size_type = HNS_BD_SIZE_512_TYPE;
424 break;
425 case 1024:
426 bd_size_type = HNS_BD_SIZE_1024_TYPE;
427 break;
428 case 2048:
429 bd_size_type = HNS_BD_SIZE_2048_TYPE;
430 break;
431 case 4096:
432 bd_size_type = HNS_BD_SIZE_4096_TYPE;
433 break;
434 default:
435 bd_size_type = -EINVAL;
436 }
437
438 return bd_size_type;
439}
440
441static void hns_rcb_ring_get_cfg(struct hnae_queue *q, int ring_type)
442{
443 struct hnae_ring *ring;
444 struct rcb_common_cb *rcb_common;
445 struct ring_pair_cb *ring_pair_cb;
446 u16 desc_num, mdnum_ppkt;
447 bool irq_idx, is_ver1;
448
449 ring_pair_cb = container_of(q, struct ring_pair_cb, q);
450 is_ver1 = AE_IS_VER1(ring_pair_cb->rcb_common->dsaf_dev->dsaf_ver);
451 if (ring_type == RX_RING) {
452 ring = &q->rx_ring;
453 ring->io_base = ring_pair_cb->q.io_base;
454 irq_idx = HNS_RCB_IRQ_IDX_RX;
455 mdnum_ppkt = HNS_RCB_RING_MAX_BD_PER_PKT;
456 } else {
457 ring = &q->tx_ring;
458 ring->io_base = ring_pair_cb->q.io_base +
459 HNS_RCB_TX_REG_OFFSET;
460 irq_idx = HNS_RCB_IRQ_IDX_TX;
461 mdnum_ppkt = is_ver1 ? HNS_RCB_RING_MAX_TXBD_PER_PKT :
462 HNS_RCBV2_RING_MAX_TXBD_PER_PKT;
463 }
464
465 rcb_common = ring_pair_cb->rcb_common;
466 desc_num = rcb_common->dsaf_dev->desc_num;
467
468 ring->desc = NULL;
469 ring->desc_cb = NULL;
470
471 ring->irq = ring_pair_cb->virq[irq_idx];
472 ring->desc_dma_addr = 0;
473
474 ring->buf_size = RCB_DEFAULT_BUFFER_SIZE;
475 ring->desc_num = desc_num;
476 ring->max_desc_num_per_pkt = mdnum_ppkt;
477 ring->max_raw_data_sz_per_desc = HNS_RCB_MAX_PKT_SIZE;
478 ring->max_pkt_size = HNS_RCB_MAX_PKT_SIZE;
479 ring->next_to_use = 0;
480 ring->next_to_clean = 0;
481}
482
483static void hns_rcb_ring_pair_get_cfg(struct ring_pair_cb *ring_pair_cb)
484{
485 ring_pair_cb->q.handle = NULL;
486
487 hns_rcb_ring_get_cfg(&ring_pair_cb->q, RX_RING);
488 hns_rcb_ring_get_cfg(&ring_pair_cb->q, TX_RING);
489}
490
491static int hns_rcb_get_port_in_comm(
492 struct rcb_common_cb *rcb_common, int ring_idx)
493{
494 return ring_idx / (rcb_common->max_q_per_vf * rcb_common->max_vfn);
495}
496
497#define SERVICE_RING_IRQ_IDX(v1) \
498 ((v1) ? HNS_SERVICE_RING_IRQ_IDX : HNSV2_SERVICE_RING_IRQ_IDX)
499static int hns_rcb_get_base_irq_idx(struct rcb_common_cb *rcb_common)
500{
501 bool is_ver1 = AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver);
502
503 if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev))
504 return SERVICE_RING_IRQ_IDX(is_ver1);
505 else
506 return HNS_DEBUG_RING_IRQ_IDX;
507}
508
509#define RCB_COMM_BASE_TO_RING_BASE(base, ringid)\
510 ((base) + 0x10000 + HNS_RCB_REG_OFFSET * (ringid))
511
512
513
514
515int hns_rcb_get_cfg(struct rcb_common_cb *rcb_common)
516{
517 struct ring_pair_cb *ring_pair_cb;
518 u32 i;
519 u32 ring_num = rcb_common->ring_num;
520 int base_irq_idx = hns_rcb_get_base_irq_idx(rcb_common);
521 struct platform_device *pdev =
522 to_platform_device(rcb_common->dsaf_dev->dev);
523 bool is_ver1 = AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver);
524
525 for (i = 0; i < ring_num; i++) {
526 ring_pair_cb = &rcb_common->ring_pair_cb[i];
527 ring_pair_cb->rcb_common = rcb_common;
528 ring_pair_cb->dev = rcb_common->dsaf_dev->dev;
529 ring_pair_cb->index = i;
530 ring_pair_cb->q.io_base =
531 RCB_COMM_BASE_TO_RING_BASE(rcb_common->io_base, i);
532 ring_pair_cb->port_id_in_comm =
533 hns_rcb_get_port_in_comm(rcb_common, i);
534 ring_pair_cb->virq[HNS_RCB_IRQ_IDX_TX] =
535 is_ver1 ? platform_get_irq(pdev, base_irq_idx + i * 2) :
536 platform_get_irq(pdev, base_irq_idx + i * 3 + 1);
537 ring_pair_cb->virq[HNS_RCB_IRQ_IDX_RX] =
538 is_ver1 ? platform_get_irq(pdev, base_irq_idx + i * 2 + 1) :
539 platform_get_irq(pdev, base_irq_idx + i * 3);
540 if ((ring_pair_cb->virq[HNS_RCB_IRQ_IDX_TX] == -EPROBE_DEFER) ||
541 (ring_pair_cb->virq[HNS_RCB_IRQ_IDX_RX] == -EPROBE_DEFER))
542 return -EPROBE_DEFER;
543
544 ring_pair_cb->q.phy_base =
545 RCB_COMM_BASE_TO_RING_BASE(rcb_common->phy_base, i);
546 hns_rcb_ring_pair_get_cfg(ring_pair_cb);
547 }
548
549 return 0;
550}
551
552
553
554
555
556
557
558
559u32 hns_rcb_get_rx_coalesced_frames(
560 struct rcb_common_cb *rcb_common, u32 port_idx)
561{
562 return dsaf_read_dev(rcb_common, RCB_CFG_PKTLINE_REG + port_idx * 4);
563}
564
565
566
567
568
569
570
571
572u32 hns_rcb_get_tx_coalesced_frames(
573 struct rcb_common_cb *rcb_common, u32 port_idx)
574{
575 u64 reg;
576
577 reg = RCB_CFG_PKTLINE_REG + (port_idx + HNS_RCB_TX_PKTLINE_OFFSET) * 4;
578 return dsaf_read_dev(rcb_common, reg);
579}
580
581
582
583
584
585
586
587
588u32 hns_rcb_get_coalesce_usecs(
589 struct rcb_common_cb *rcb_common, u32 port_idx)
590{
591 if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver))
592 return dsaf_read_dev(rcb_common, RCB_CFG_OVERTIME_REG) /
593 HNS_RCB_CLK_FREQ_MHZ;
594 else
595 return dsaf_read_dev(rcb_common,
596 RCB_PORT_CFG_OVERTIME_REG + port_idx * 4);
597}
598
599
600
601
602
603
604
605
606
607
608int hns_rcb_set_coalesce_usecs(
609 struct rcb_common_cb *rcb_common, u32 port_idx, u32 timeout)
610{
611 u32 old_timeout = hns_rcb_get_coalesce_usecs(rcb_common, port_idx);
612
613 if (timeout == old_timeout)
614 return 0;
615
616 if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
617 if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev)) {
618 dev_err(rcb_common->dsaf_dev->dev,
619 "error: not support coalesce_usecs setting!\n");
620 return -EINVAL;
621 }
622 }
623 if (timeout > HNS_RCB_MAX_COALESCED_USECS || timeout == 0) {
624 dev_err(rcb_common->dsaf_dev->dev,
625 "error: coalesce_usecs setting supports 1~1023us\n");
626 return -EINVAL;
627 }
628 hns_rcb_set_port_timeout(rcb_common, port_idx, timeout);
629 return 0;
630}
631
632
633
634
635
636
637
638
639
640
641int hns_rcb_set_tx_coalesced_frames(
642 struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames)
643{
644 u32 old_waterline =
645 hns_rcb_get_tx_coalesced_frames(rcb_common, port_idx);
646 u64 reg;
647
648 if (coalesced_frames == old_waterline)
649 return 0;
650
651 if (coalesced_frames != 1) {
652 dev_err(rcb_common->dsaf_dev->dev,
653 "error: not support tx coalesce_frames setting!\n");
654 return -EINVAL;
655 }
656
657 reg = RCB_CFG_PKTLINE_REG + (port_idx + HNS_RCB_TX_PKTLINE_OFFSET) * 4;
658 dsaf_write_dev(rcb_common, reg, coalesced_frames);
659 return 0;
660}
661
662
663
664
665
666
667
668
669
670
671int hns_rcb_set_rx_coalesced_frames(
672 struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames)
673{
674 u32 old_waterline =
675 hns_rcb_get_rx_coalesced_frames(rcb_common, port_idx);
676
677 if (coalesced_frames == old_waterline)
678 return 0;
679
680 if (coalesced_frames >= rcb_common->desc_num ||
681 coalesced_frames > HNS_RCB_MAX_COALESCED_FRAMES ||
682 coalesced_frames < HNS_RCB_MIN_COALESCED_FRAMES) {
683 dev_err(rcb_common->dsaf_dev->dev,
684 "error: not support coalesce_frames setting!\n");
685 return -EINVAL;
686 }
687
688 dsaf_write_dev(rcb_common, RCB_CFG_PKTLINE_REG + port_idx * 4,
689 coalesced_frames);
690 return 0;
691}
692
693
694
695
696
697
698
699
700void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, u16 *max_vfn,
701 u16 *max_q_per_vf)
702{
703 switch (dsaf_mode) {
704 case DSAF_MODE_DISABLE_6PORT_0VM:
705 *max_vfn = 1;
706 *max_q_per_vf = 16;
707 break;
708 case DSAF_MODE_DISABLE_FIX:
709 case DSAF_MODE_DISABLE_SP:
710 *max_vfn = 1;
711 *max_q_per_vf = 1;
712 break;
713 case DSAF_MODE_DISABLE_2PORT_64VM:
714 *max_vfn = 64;
715 *max_q_per_vf = 1;
716 break;
717 case DSAF_MODE_DISABLE_6PORT_16VM:
718 *max_vfn = 16;
719 *max_q_per_vf = 1;
720 break;
721 default:
722 *max_vfn = 1;
723 *max_q_per_vf = 16;
724 break;
725 }
726}
727
728static int hns_rcb_get_ring_num(struct dsaf_device *dsaf_dev)
729{
730 switch (dsaf_dev->dsaf_mode) {
731 case DSAF_MODE_ENABLE_FIX:
732 case DSAF_MODE_DISABLE_SP:
733 return 1;
734
735 case DSAF_MODE_DISABLE_FIX:
736 return 6;
737
738 case DSAF_MODE_ENABLE_0VM:
739 return 32;
740
741 case DSAF_MODE_DISABLE_6PORT_0VM:
742 case DSAF_MODE_ENABLE_16VM:
743 case DSAF_MODE_DISABLE_6PORT_2VM:
744 case DSAF_MODE_DISABLE_6PORT_16VM:
745 case DSAF_MODE_DISABLE_6PORT_4VM:
746 case DSAF_MODE_ENABLE_8VM:
747 return 96;
748
749 case DSAF_MODE_DISABLE_2PORT_16VM:
750 case DSAF_MODE_DISABLE_2PORT_8VM:
751 case DSAF_MODE_ENABLE_32VM:
752 case DSAF_MODE_DISABLE_2PORT_64VM:
753 case DSAF_MODE_ENABLE_128VM:
754 return 128;
755
756 default:
757 dev_warn(dsaf_dev->dev,
758 "get ring num fail,use default!dsaf_mode=%d\n",
759 dsaf_dev->dsaf_mode);
760 return 128;
761 }
762}
763
764static u8 __iomem *hns_rcb_common_get_vaddr(struct rcb_common_cb *rcb_common)
765{
766 struct dsaf_device *dsaf_dev = rcb_common->dsaf_dev;
767
768 return dsaf_dev->ppe_base + RCB_COMMON_REG_OFFSET;
769}
770
771static phys_addr_t hns_rcb_common_get_paddr(struct rcb_common_cb *rcb_common)
772{
773 struct dsaf_device *dsaf_dev = rcb_common->dsaf_dev;
774
775 return dsaf_dev->ppe_paddr + RCB_COMMON_REG_OFFSET;
776}
777
778int hns_rcb_common_get_cfg(struct dsaf_device *dsaf_dev,
779 int comm_index)
780{
781 struct rcb_common_cb *rcb_common;
782 enum dsaf_mode dsaf_mode = dsaf_dev->dsaf_mode;
783 u16 max_vfn;
784 u16 max_q_per_vf;
785 int ring_num = hns_rcb_get_ring_num(dsaf_dev);
786
787 rcb_common =
788 devm_kzalloc(dsaf_dev->dev,
789 struct_size(rcb_common, ring_pair_cb, ring_num),
790 GFP_KERNEL);
791 if (!rcb_common) {
792 dev_err(dsaf_dev->dev, "rcb common devm_kzalloc fail!\n");
793 return -ENOMEM;
794 }
795 rcb_common->comm_index = comm_index;
796 rcb_common->ring_num = ring_num;
797 rcb_common->dsaf_dev = dsaf_dev;
798
799 rcb_common->desc_num = dsaf_dev->desc_num;
800
801 hns_rcb_get_queue_mode(dsaf_mode, &max_vfn, &max_q_per_vf);
802 rcb_common->max_vfn = max_vfn;
803 rcb_common->max_q_per_vf = max_q_per_vf;
804
805 rcb_common->io_base = hns_rcb_common_get_vaddr(rcb_common);
806 rcb_common->phy_base = hns_rcb_common_get_paddr(rcb_common);
807
808 dsaf_dev->rcb_common[comm_index] = rcb_common;
809 return 0;
810}
811
812void hns_rcb_common_free_cfg(struct dsaf_device *dsaf_dev,
813 u32 comm_index)
814{
815 dsaf_dev->rcb_common[comm_index] = NULL;
816}
817
818void hns_rcb_update_stats(struct hnae_queue *queue)
819{
820 struct ring_pair_cb *ring =
821 container_of(queue, struct ring_pair_cb, q);
822 struct dsaf_device *dsaf_dev = ring->rcb_common->dsaf_dev;
823 struct ppe_common_cb *ppe_common
824 = dsaf_dev->ppe_common[ring->rcb_common->comm_index];
825 struct hns_ring_hw_stats *hw_stats = &ring->hw_stats;
826
827 hw_stats->rx_pkts += dsaf_read_dev(queue,
828 RCB_RING_RX_RING_PKTNUM_RECORD_REG);
829 dsaf_write_dev(queue, RCB_RING_RX_RING_PKTNUM_RECORD_REG, 0x1);
830
831 hw_stats->ppe_rx_ok_pkts += dsaf_read_dev(ppe_common,
832 PPE_COM_HIS_RX_PKT_QID_OK_CNT_REG + 4 * ring->index);
833 hw_stats->ppe_rx_drop_pkts += dsaf_read_dev(ppe_common,
834 PPE_COM_HIS_RX_PKT_QID_DROP_CNT_REG + 4 * ring->index);
835
836 hw_stats->tx_pkts += dsaf_read_dev(queue,
837 RCB_RING_TX_RING_PKTNUM_RECORD_REG);
838 dsaf_write_dev(queue, RCB_RING_TX_RING_PKTNUM_RECORD_REG, 0x1);
839
840 hw_stats->ppe_tx_ok_pkts += dsaf_read_dev(ppe_common,
841 PPE_COM_HIS_TX_PKT_QID_OK_CNT_REG + 4 * ring->index);
842 hw_stats->ppe_tx_drop_pkts += dsaf_read_dev(ppe_common,
843 PPE_COM_HIS_TX_PKT_QID_ERR_CNT_REG + 4 * ring->index);
844}
845
846
847
848
849
850
851void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data)
852{
853 u64 *regs_buff = data;
854 struct ring_pair_cb *ring =
855 container_of(queue, struct ring_pair_cb, q);
856 struct hns_ring_hw_stats *hw_stats = &ring->hw_stats;
857
858 regs_buff[0] = hw_stats->tx_pkts;
859 regs_buff[1] = hw_stats->ppe_tx_ok_pkts;
860 regs_buff[2] = hw_stats->ppe_tx_drop_pkts;
861 regs_buff[3] =
862 dsaf_read_dev(queue, RCB_RING_TX_RING_FBDNUM_REG);
863
864 regs_buff[4] = queue->tx_ring.stats.tx_pkts;
865 regs_buff[5] = queue->tx_ring.stats.tx_bytes;
866 regs_buff[6] = queue->tx_ring.stats.tx_err_cnt;
867 regs_buff[7] = queue->tx_ring.stats.io_err_cnt;
868 regs_buff[8] = queue->tx_ring.stats.sw_err_cnt;
869 regs_buff[9] = queue->tx_ring.stats.seg_pkt_cnt;
870 regs_buff[10] = queue->tx_ring.stats.restart_queue;
871 regs_buff[11] = queue->tx_ring.stats.tx_busy;
872
873 regs_buff[12] = hw_stats->rx_pkts;
874 regs_buff[13] = hw_stats->ppe_rx_ok_pkts;
875 regs_buff[14] = hw_stats->ppe_rx_drop_pkts;
876 regs_buff[15] =
877 dsaf_read_dev(queue, RCB_RING_RX_RING_FBDNUM_REG);
878
879 regs_buff[16] = queue->rx_ring.stats.rx_pkts;
880 regs_buff[17] = queue->rx_ring.stats.rx_bytes;
881 regs_buff[18] = queue->rx_ring.stats.rx_err_cnt;
882 regs_buff[19] = queue->rx_ring.stats.io_err_cnt;
883 regs_buff[20] = queue->rx_ring.stats.sw_err_cnt;
884 regs_buff[21] = queue->rx_ring.stats.seg_pkt_cnt;
885 regs_buff[22] = queue->rx_ring.stats.reuse_pg_cnt;
886 regs_buff[23] = queue->rx_ring.stats.err_pkt_len;
887 regs_buff[24] = queue->rx_ring.stats.non_vld_descs;
888 regs_buff[25] = queue->rx_ring.stats.err_bd_num;
889 regs_buff[26] = queue->rx_ring.stats.l2_err;
890 regs_buff[27] = queue->rx_ring.stats.l3l4_csum_err;
891}
892
893
894
895
896
897
898int hns_rcb_get_ring_sset_count(int stringset)
899{
900 if (stringset == ETH_SS_STATS)
901 return HNS_RING_STATIC_REG_NUM;
902
903 return 0;
904}
905
906
907
908
909
910int hns_rcb_get_common_regs_count(void)
911{
912 return HNS_RCB_COMMON_DUMP_REG_NUM;
913}
914
915
916
917
918
919int hns_rcb_get_ring_regs_count(void)
920{
921 return HNS_RCB_RING_DUMP_REG_NUM;
922}
923
924
925
926
927
928
929
930void hns_rcb_get_strings(int stringset, u8 *data, int index)
931{
932 u8 *buff = data;
933
934 if (stringset != ETH_SS_STATS)
935 return;
936
937 ethtool_sprintf(&buff, "tx_ring%d_rcb_pkt_num", index);
938 ethtool_sprintf(&buff, "tx_ring%d_ppe_tx_pkt_num", index);
939 ethtool_sprintf(&buff, "tx_ring%d_ppe_drop_pkt_num", index);
940 ethtool_sprintf(&buff, "tx_ring%d_fbd_num", index);
941
942 ethtool_sprintf(&buff, "tx_ring%d_pkt_num", index);
943 ethtool_sprintf(&buff, "tx_ring%d_bytes", index);
944 ethtool_sprintf(&buff, "tx_ring%d_err_cnt", index);
945 ethtool_sprintf(&buff, "tx_ring%d_io_err", index);
946 ethtool_sprintf(&buff, "tx_ring%d_sw_err", index);
947 ethtool_sprintf(&buff, "tx_ring%d_seg_pkt", index);
948 ethtool_sprintf(&buff, "tx_ring%d_restart_queue", index);
949 ethtool_sprintf(&buff, "tx_ring%d_tx_busy", index);
950
951 ethtool_sprintf(&buff, "rx_ring%d_rcb_pkt_num", index);
952 ethtool_sprintf(&buff, "rx_ring%d_ppe_pkt_num", index);
953 ethtool_sprintf(&buff, "rx_ring%d_ppe_drop_pkt_num", index);
954 ethtool_sprintf(&buff, "rx_ring%d_fbd_num", index);
955
956 ethtool_sprintf(&buff, "rx_ring%d_pkt_num", index);
957 ethtool_sprintf(&buff, "rx_ring%d_bytes", index);
958 ethtool_sprintf(&buff, "rx_ring%d_err_cnt", index);
959 ethtool_sprintf(&buff, "rx_ring%d_io_err", index);
960 ethtool_sprintf(&buff, "rx_ring%d_sw_err", index);
961 ethtool_sprintf(&buff, "rx_ring%d_seg_pkt", index);
962 ethtool_sprintf(&buff, "rx_ring%d_reuse_pg", index);
963 ethtool_sprintf(&buff, "rx_ring%d_len_err", index);
964 ethtool_sprintf(&buff, "rx_ring%d_non_vld_desc_err", index);
965 ethtool_sprintf(&buff, "rx_ring%d_bd_num_err", index);
966 ethtool_sprintf(&buff, "rx_ring%d_l2_err", index);
967 ethtool_sprintf(&buff, "rx_ring%d_l3l4csum_err", index);
968}
969
970void hns_rcb_get_common_regs(struct rcb_common_cb *rcb_com, void *data)
971{
972 u32 *regs = data;
973 bool is_ver1 = AE_IS_VER1(rcb_com->dsaf_dev->dsaf_ver);
974 bool is_dbg = HNS_DSAF_IS_DEBUG(rcb_com->dsaf_dev);
975 u32 reg_tmp;
976 u32 reg_num_tmp;
977 u32 i;
978
979
980 regs[0] = dsaf_read_dev(rcb_com, RCB_COM_CFG_ENDIAN_REG);
981 regs[1] = dsaf_read_dev(rcb_com, RCB_COM_CFG_SYS_FSH_REG);
982 regs[2] = dsaf_read_dev(rcb_com, RCB_COM_CFG_INIT_FLAG_REG);
983
984 regs[3] = dsaf_read_dev(rcb_com, RCB_COM_CFG_PKT_REG);
985 regs[4] = dsaf_read_dev(rcb_com, RCB_COM_CFG_RINVLD_REG);
986 regs[5] = dsaf_read_dev(rcb_com, RCB_COM_CFG_FNA_REG);
987 regs[6] = dsaf_read_dev(rcb_com, RCB_COM_CFG_FA_REG);
988 regs[7] = dsaf_read_dev(rcb_com, RCB_COM_CFG_PKT_TC_BP_REG);
989 regs[8] = dsaf_read_dev(rcb_com, RCB_COM_CFG_PPE_TNL_CLKEN_REG);
990
991 regs[9] = dsaf_read_dev(rcb_com, RCB_COM_INTMSK_TX_PKT_REG);
992 regs[10] = dsaf_read_dev(rcb_com, RCB_COM_RINT_TX_PKT_REG);
993 regs[11] = dsaf_read_dev(rcb_com, RCB_COM_INTMASK_ECC_ERR_REG);
994 regs[12] = dsaf_read_dev(rcb_com, RCB_COM_INTSTS_ECC_ERR_REG);
995 regs[13] = dsaf_read_dev(rcb_com, RCB_COM_EBD_SRAM_ERR_REG);
996 regs[14] = dsaf_read_dev(rcb_com, RCB_COM_RXRING_ERR_REG);
997 regs[15] = dsaf_read_dev(rcb_com, RCB_COM_TXRING_ERR_REG);
998 regs[16] = dsaf_read_dev(rcb_com, RCB_COM_TX_FBD_ERR_REG);
999 regs[17] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK_EN_REG);
1000 regs[18] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK0_REG);
1001 regs[19] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK1_REG);
1002 regs[20] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK2_REG);
1003 regs[21] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK3_REG);
1004 regs[22] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK4_REG);
1005 regs[23] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK5_REG);
1006 regs[24] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR0_REG);
1007 regs[25] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR3_REG);
1008 regs[26] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR4_REG);
1009 regs[27] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR5_REG);
1010
1011 regs[28] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_INTMASK_RING);
1012 regs[29] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_RING_STS);
1013 regs[30] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_RING);
1014 regs[31] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_INTMASK_BD);
1015 regs[32] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_BD_RINT_STS);
1016 regs[33] = dsaf_read_dev(rcb_com, RCB_COM_RCB_RD_BD_BUSY);
1017 regs[34] = dsaf_read_dev(rcb_com, RCB_COM_RCB_FBD_CRT_EN);
1018 regs[35] = dsaf_read_dev(rcb_com, RCB_COM_AXI_WR_ERR_INTMASK);
1019 regs[36] = dsaf_read_dev(rcb_com, RCB_COM_AXI_ERR_STS);
1020 regs[37] = dsaf_read_dev(rcb_com, RCB_COM_CHK_TX_FBD_NUM_REG);
1021
1022
1023 for (i = 0; i < 16; i++) {
1024 regs[38 + i]
1025 = dsaf_read_dev(rcb_com, RCB_CFG_BD_NUM_REG + 4 * i);
1026 regs[54 + i]
1027 = dsaf_read_dev(rcb_com, RCB_CFG_PKTLINE_REG + 4 * i);
1028 }
1029
1030 reg_tmp = is_ver1 ? RCB_CFG_OVERTIME_REG : RCB_PORT_CFG_OVERTIME_REG;
1031 reg_num_tmp = (is_ver1 || is_dbg) ? 1 : 6;
1032 for (i = 0; i < reg_num_tmp; i++)
1033 regs[70 + i] = dsaf_read_dev(rcb_com, reg_tmp);
1034
1035 regs[76] = dsaf_read_dev(rcb_com, RCB_CFG_PKTLINE_INT_NUM_REG);
1036 regs[77] = dsaf_read_dev(rcb_com, RCB_CFG_OVERTIME_INT_NUM_REG);
1037
1038
1039 for (i = 78; i < 80; i++)
1040 regs[i] = 0xcccccccc;
1041}
1042
1043void hns_rcb_get_ring_regs(struct hnae_queue *queue, void *data)
1044{
1045 u32 *regs = data;
1046 struct ring_pair_cb *ring_pair
1047 = container_of(queue, struct ring_pair_cb, q);
1048 u32 i;
1049
1050
1051 regs[0] = dsaf_read_dev(queue, RCB_RING_RX_RING_BASEADDR_L_REG);
1052 regs[1] = dsaf_read_dev(queue, RCB_RING_RX_RING_BASEADDR_H_REG);
1053 regs[2] = dsaf_read_dev(queue, RCB_RING_RX_RING_BD_NUM_REG);
1054 regs[3] = dsaf_read_dev(queue, RCB_RING_RX_RING_BD_LEN_REG);
1055 regs[4] = dsaf_read_dev(queue, RCB_RING_RX_RING_PKTLINE_REG);
1056 regs[5] = dsaf_read_dev(queue, RCB_RING_RX_RING_TAIL_REG);
1057 regs[6] = dsaf_read_dev(queue, RCB_RING_RX_RING_HEAD_REG);
1058 regs[7] = dsaf_read_dev(queue, RCB_RING_RX_RING_FBDNUM_REG);
1059 regs[8] = dsaf_read_dev(queue, RCB_RING_RX_RING_PKTNUM_RECORD_REG);
1060
1061 regs[9] = dsaf_read_dev(queue, RCB_RING_TX_RING_BASEADDR_L_REG);
1062 regs[10] = dsaf_read_dev(queue, RCB_RING_TX_RING_BASEADDR_H_REG);
1063 regs[11] = dsaf_read_dev(queue, RCB_RING_TX_RING_BD_NUM_REG);
1064 regs[12] = dsaf_read_dev(queue, RCB_RING_TX_RING_BD_LEN_REG);
1065 regs[13] = dsaf_read_dev(queue, RCB_RING_TX_RING_PKTLINE_REG);
1066 regs[15] = dsaf_read_dev(queue, RCB_RING_TX_RING_TAIL_REG);
1067 regs[16] = dsaf_read_dev(queue, RCB_RING_TX_RING_HEAD_REG);
1068 regs[17] = dsaf_read_dev(queue, RCB_RING_TX_RING_FBDNUM_REG);
1069 regs[18] = dsaf_read_dev(queue, RCB_RING_TX_RING_OFFSET_REG);
1070 regs[19] = dsaf_read_dev(queue, RCB_RING_TX_RING_PKTNUM_RECORD_REG);
1071
1072 regs[20] = dsaf_read_dev(queue, RCB_RING_PREFETCH_EN_REG);
1073 regs[21] = dsaf_read_dev(queue, RCB_RING_CFG_VF_NUM_REG);
1074 regs[22] = dsaf_read_dev(queue, RCB_RING_ASID_REG);
1075 regs[23] = dsaf_read_dev(queue, RCB_RING_RX_VM_REG);
1076 regs[24] = dsaf_read_dev(queue, RCB_RING_T0_BE_RST);
1077 regs[25] = dsaf_read_dev(queue, RCB_RING_COULD_BE_RST);
1078 regs[26] = dsaf_read_dev(queue, RCB_RING_WRR_WEIGHT_REG);
1079
1080 regs[27] = dsaf_read_dev(queue, RCB_RING_INTMSK_RXWL_REG);
1081 regs[28] = dsaf_read_dev(queue, RCB_RING_INTSTS_RX_RING_REG);
1082 regs[29] = dsaf_read_dev(queue, RCB_RING_INTMSK_TXWL_REG);
1083 regs[30] = dsaf_read_dev(queue, RCB_RING_INTSTS_TX_RING_REG);
1084 regs[31] = dsaf_read_dev(queue, RCB_RING_INTMSK_RX_OVERTIME_REG);
1085 regs[32] = dsaf_read_dev(queue, RCB_RING_INTSTS_RX_OVERTIME_REG);
1086 regs[33] = dsaf_read_dev(queue, RCB_RING_INTMSK_TX_OVERTIME_REG);
1087 regs[34] = dsaf_read_dev(queue, RCB_RING_INTSTS_TX_OVERTIME_REG);
1088
1089
1090 for (i = 35; i < 40; i++)
1091 regs[i] = 0xcccccc00 + ring_pair->index;
1092}
1093
