1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) 2014-2015 Hisilicon Limited.
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/spinlock.h>
15
16#include "hns_dsaf_main.h"
17#include "hns_dsaf_ppe.h"
18#include "hns_dsaf_rcb.h"
19
20#define RCB_COMMON_REG_OFFSET 0x80000
21#define TX_RING 0
22#define RX_RING 1
23
24#define RCB_RESET_WAIT_TIMES 30
25#define RCB_RESET_TRY_TIMES 10
26
27/* Because default mtu is 1500, rcb buffer size is set to 2048 enough */
28#define RCB_DEFAULT_BUFFER_SIZE 2048
29
30/**
31 *hns_rcb_wait_fbd_clean - clean fbd
32 *@qs: ring struct pointer array
33 *@q_num: num of array
34 *@flag: tx or rx flag
35 */
36void hns_rcb_wait_fbd_clean(struct hnae_queue **qs, int q_num, u32 flag)
37{
38 int i, wait_cnt;
39 u32 fbd_num;
40
41 for (wait_cnt = i = 0; i < q_num; wait_cnt++) {
42 usleep_range(min: 200, max: 300);
43 fbd_num = 0;
44 if (flag & RCB_INT_FLAG_TX)
45 fbd_num += dsaf_read_dev(qs[i],
46 RCB_RING_TX_RING_FBDNUM_REG);
47 if (flag & RCB_INT_FLAG_RX)
48 fbd_num += dsaf_read_dev(qs[i],
49 RCB_RING_RX_RING_FBDNUM_REG);
50 if (!fbd_num)
51 i++;
52 if (wait_cnt >= 10000)
53 break;
54 }
55
56 if (i < q_num)
57 dev_err(qs[i]->handle->owner_dev,
58 "queue(%d) wait fbd(%d) clean fail!!\n", i, fbd_num);
59}
60
61int hns_rcb_wait_tx_ring_clean(struct hnae_queue *qs)
62{
63 u32 head, tail;
64 int wait_cnt;
65
66 tail = dsaf_read_dev(&qs->tx_ring, RCB_REG_TAIL);
67 wait_cnt = 0;
68 while (wait_cnt++ < HNS_MAX_WAIT_CNT) {
69 head = dsaf_read_dev(&qs->tx_ring, RCB_REG_HEAD);
70 if (tail == head)
71 break;
72
73 usleep_range(min: 100, max: 200);
74 }
75
76 if (wait_cnt >= HNS_MAX_WAIT_CNT) {
77 dev_err(qs->dev->dev, "rcb wait timeout, head not equal to tail.\n");
78 return -EBUSY;
79 }
80
81 return 0;
82}
83
84/**
85 *hns_rcb_reset_ring_hw - ring reset
86 *@q: ring struct pointer
87 */
88void hns_rcb_reset_ring_hw(struct hnae_queue *q)
89{
90 u32 wait_cnt;
91 u32 try_cnt = 0;
92 u32 could_ret;
93
94 u32 tx_fbd_num;
95
96 while (try_cnt++ < RCB_RESET_TRY_TIMES) {
97 usleep_range(min: 100, max: 200);
98 tx_fbd_num = dsaf_read_dev(q, RCB_RING_TX_RING_FBDNUM_REG);
99 if (tx_fbd_num)
100 continue;
101
102 dsaf_write_dev(q, RCB_RING_PREFETCH_EN_REG, 0);
103
104 dsaf_write_dev(q, RCB_RING_T0_BE_RST, 1);
105
106 msleep(msecs: 20);
107 could_ret = dsaf_read_dev(q, RCB_RING_COULD_BE_RST);
108
109 wait_cnt = 0;
110 while (!could_ret && (wait_cnt < RCB_RESET_WAIT_TIMES)) {
111 dsaf_write_dev(q, RCB_RING_T0_BE_RST, 0);
112
113 dsaf_write_dev(q, RCB_RING_T0_BE_RST, 1);
114
115 msleep(msecs: 20);
116 could_ret = dsaf_read_dev(q, RCB_RING_COULD_BE_RST);
117
118 wait_cnt++;
119 }
120
121 dsaf_write_dev(q, RCB_RING_T0_BE_RST, 0);
122
123 if (could_ret)
124 break;
125 }
126
127 if (try_cnt >= RCB_RESET_TRY_TIMES)
128 dev_err(q->dev->dev, "port%d reset ring fail\n",
129 hns_ae_get_vf_cb(q->handle)->port_index);
130}
131
132/**
133 *hns_rcb_int_ctrl_hw - rcb irq enable control
134 *@q: hnae queue struct pointer
135 *@flag:ring flag tx or rx
136 *@mask:mask
137 */
138void hns_rcb_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 mask)
139{
140 u32 int_mask_en = !!mask;
141
142 if (flag & RCB_INT_FLAG_TX) {
143 dsaf_write_dev(q, RCB_RING_INTMSK_TXWL_REG, int_mask_en);
144 dsaf_write_dev(q, RCB_RING_INTMSK_TX_OVERTIME_REG,
145 int_mask_en);
146 }
147
148 if (flag & RCB_INT_FLAG_RX) {
149 dsaf_write_dev(q, RCB_RING_INTMSK_RXWL_REG, int_mask_en);
150 dsaf_write_dev(q, RCB_RING_INTMSK_RX_OVERTIME_REG,
151 int_mask_en);
152 }
153}
154
155void hns_rcb_int_clr_hw(struct hnae_queue *q, u32 flag)
156{
157 if (flag & RCB_INT_FLAG_TX) {
158 dsaf_write_dev(q, RCB_RING_INTSTS_TX_RING_REG, 1);
159 dsaf_write_dev(q, RCB_RING_INTSTS_TX_OVERTIME_REG, 1);
160 }
161
162 if (flag & RCB_INT_FLAG_RX) {
163 dsaf_write_dev(q, RCB_RING_INTSTS_RX_RING_REG, 1);
164 dsaf_write_dev(q, RCB_RING_INTSTS_RX_OVERTIME_REG, 1);
165 }
166}
167
168void hns_rcbv2_int_ctrl_hw(struct hnae_queue *q, u32 flag, u32 mask)
169{
170 u32 int_mask_en = !!mask;
171
172 if (flag & RCB_INT_FLAG_TX)
173 dsaf_write_dev(q, RCB_RING_INTMSK_TXWL_REG, int_mask_en);
174
175 if (flag & RCB_INT_FLAG_RX)
176 dsaf_write_dev(q, RCB_RING_INTMSK_RXWL_REG, int_mask_en);
177}
178
179void hns_rcbv2_int_clr_hw(struct hnae_queue *q, u32 flag)
180{
181 if (flag & RCB_INT_FLAG_TX)
182 dsaf_write_dev(q, RCBV2_TX_RING_INT_STS_REG, 1);
183
184 if (flag & RCB_INT_FLAG_RX)
185 dsaf_write_dev(q, RCBV2_RX_RING_INT_STS_REG, 1);
186}
187
188/**
189 *hns_rcb_ring_enable_hw - enable ring
190 *@q: rcb ring
191 *@val: value to write
192 */
193void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val)
194{
195 dsaf_write_dev(q, RCB_RING_PREFETCH_EN_REG, !!val);
196}
197
198void hns_rcb_start(struct hnae_queue *q, u32 val)
199{
200 hns_rcb_ring_enable_hw(q, val);
201}
202
203/**
204 *hns_rcb_common_init_commit_hw - make rcb common init completed
205 *@rcb_common: rcb common device
206 */
207void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common)
208{
209 wmb(); /* Sync point before breakpoint */
210 dsaf_write_dev(rcb_common, RCB_COM_CFG_SYS_FSH_REG, 1);
211 wmb(); /* Sync point after breakpoint */
212}
213
214/* hns_rcb_set_tx_ring_bs - init rcb ring buf size regester
215 *@q: hnae_queue
216 *@buf_size: buffer size set to hw
217 */
218void hns_rcb_set_tx_ring_bs(struct hnae_queue *q, u32 buf_size)
219{
220 u32 bd_size_type = hns_rcb_buf_size2type(buf_size);
221
222 dsaf_write_dev(q, RCB_RING_TX_RING_BD_LEN_REG,
223 bd_size_type);
224}
225
226/* hns_rcb_set_rx_ring_bs - init rcb ring buf size regester
227 *@q: hnae_queue
228 *@buf_size: buffer size set to hw
229 */
230void hns_rcb_set_rx_ring_bs(struct hnae_queue *q, u32 buf_size)
231{
232 u32 bd_size_type = hns_rcb_buf_size2type(buf_size);
233
234 dsaf_write_dev(q, RCB_RING_RX_RING_BD_LEN_REG,
235 bd_size_type);
236}
237
238/**
239 *hns_rcb_ring_init - init rcb ring
240 *@ring_pair: ring pair control block
241 *@ring_type: ring type, RX_RING or TX_RING
242 */
243static void hns_rcb_ring_init(struct ring_pair_cb *ring_pair, int ring_type)
244{
245 struct hnae_queue *q = &ring_pair->q;
246 struct hnae_ring *ring =
247 (ring_type == RX_RING) ? &q->rx_ring : &q->tx_ring;
248 dma_addr_t dma = ring->desc_dma_addr;
249
250 if (ring_type == RX_RING) {
251 dsaf_write_dev(q, RCB_RING_RX_RING_BASEADDR_L_REG,
252 (u32)dma);
253 dsaf_write_dev(q, RCB_RING_RX_RING_BASEADDR_H_REG,
254 (u32)((dma >> 31) >> 1));
255
256 hns_rcb_set_rx_ring_bs(q, buf_size: ring->buf_size);
257
258 dsaf_write_dev(q, RCB_RING_RX_RING_BD_NUM_REG,
259 ring_pair->port_id_in_comm);
260 dsaf_write_dev(q, RCB_RING_RX_RING_PKTLINE_REG,
261 ring_pair->port_id_in_comm);
262 } else {
263 dsaf_write_dev(q, RCB_RING_TX_RING_BASEADDR_L_REG,
264 (u32)dma);
265 dsaf_write_dev(q, RCB_RING_TX_RING_BASEADDR_H_REG,
266 (u32)((dma >> 31) >> 1));
267
268 hns_rcb_set_tx_ring_bs(q, buf_size: ring->buf_size);
269
270 dsaf_write_dev(q, RCB_RING_TX_RING_BD_NUM_REG,
271 ring_pair->port_id_in_comm);
272 dsaf_write_dev(q, RCB_RING_TX_RING_PKTLINE_REG,
273 ring_pair->port_id_in_comm + HNS_RCB_TX_PKTLINE_OFFSET);
274 }
275}
276
277/**
278 *hns_rcb_init_hw - init rcb hardware
279 *@ring: rcb ring
280 */
281void hns_rcb_init_hw(struct ring_pair_cb *ring)
282{
283 hns_rcb_ring_init(ring_pair: ring, RX_RING);
284 hns_rcb_ring_init(ring_pair: ring, TX_RING);
285}
286
287/**
288 *hns_rcb_set_port_desc_cnt - set rcb port description num
289 *@rcb_common: rcb_common device
290 *@port_idx:port index
291 *@desc_cnt:BD num
292 */
293static void hns_rcb_set_port_desc_cnt(struct rcb_common_cb *rcb_common,
294 u32 port_idx, u32 desc_cnt)
295{
296 dsaf_write_dev(rcb_common, RCB_CFG_BD_NUM_REG + port_idx * 4,
297 desc_cnt);
298}
299
300static void hns_rcb_set_port_timeout(
301 struct rcb_common_cb *rcb_common, u32 port_idx, u32 timeout)
302{
303 if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
304 dsaf_write_dev(rcb_common, RCB_CFG_OVERTIME_REG,
305 timeout * HNS_RCB_CLK_FREQ_MHZ);
306 } else if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev)) {
307 if (timeout > HNS_RCB_DEF_GAP_TIME_USECS)
308 dsaf_write_dev(rcb_common,
309 RCB_PORT_INT_GAPTIME_REG + port_idx * 4,
310 HNS_RCB_DEF_GAP_TIME_USECS);
311 else
312 dsaf_write_dev(rcb_common,
313 RCB_PORT_INT_GAPTIME_REG + port_idx * 4,
314 timeout);
315
316 dsaf_write_dev(rcb_common,
317 RCB_PORT_CFG_OVERTIME_REG + port_idx * 4,
318 timeout);
319 } else {
320 dsaf_write_dev(rcb_common,
321 RCB_PORT_CFG_OVERTIME_REG + port_idx * 4,
322 timeout);
323 }
324}
325
326static int hns_rcb_common_get_port_num(struct rcb_common_cb *rcb_common)
327{
328 if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev))
329 return HNS_RCB_SERVICE_NW_ENGINE_NUM;
330 else
331 return HNS_RCB_DEBUG_NW_ENGINE_NUM;
332}
333
334/*clr rcb comm exception irq**/
335static void hns_rcb_comm_exc_irq_en(
336 struct rcb_common_cb *rcb_common, int en)
337{
338 u32 clr_vlue = 0xfffffffful;
339 u32 msk_vlue = en ? 0 : 0xfffffffful;
340
341 /* clr int*/
342 dsaf_write_dev(rcb_common, RCB_COM_INTSTS_ECC_ERR_REG, clr_vlue);
343
344 dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_RING_STS, clr_vlue);
345
346 dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_BD_RINT_STS, clr_vlue);
347
348 dsaf_write_dev(rcb_common, RCB_COM_RINT_TX_PKT_REG, clr_vlue);
349 dsaf_write_dev(rcb_common, RCB_COM_AXI_ERR_STS, clr_vlue);
350
351 /*en msk*/
352 dsaf_write_dev(rcb_common, RCB_COM_INTMASK_ECC_ERR_REG, msk_vlue);
353
354 dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_INTMASK_RING, msk_vlue);
355
356 /*for tx bd neednot cacheline, so msk sf_txring_fbd_intmask (bit 1)**/
357 dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_INTMASK_BD, msk_vlue | 2);
358
359 dsaf_write_dev(rcb_common, RCB_COM_INTMSK_TX_PKT_REG, msk_vlue);
360 dsaf_write_dev(rcb_common, RCB_COM_AXI_WR_ERR_INTMASK, msk_vlue);
361}
362
363/**
364 *hns_rcb_common_init_hw - init rcb common hardware
365 *@rcb_common: rcb_common device
366 *retuen 0 - success , negative --fail
367 */
368int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common)
369{
370 u32 reg_val;
371 int i;
372 int port_num = hns_rcb_common_get_port_num(rcb_common);
373
374 hns_rcb_comm_exc_irq_en(rcb_common, en: 0);
375
376 reg_val = dsaf_read_dev(rcb_common, RCB_COM_CFG_INIT_FLAG_REG);
377 if (0x1 != (reg_val & 0x1)) {
378 dev_err(rcb_common->dsaf_dev->dev,
379 "RCB_COM_CFG_INIT_FLAG_REG reg = 0x%x\n", reg_val);
380 return -EBUSY;
381 }
382
383 for (i = 0; i < port_num; i++) {
384 hns_rcb_set_port_desc_cnt(rcb_common, port_idx: i, desc_cnt: rcb_common->desc_num);
385 hns_rcb_set_rx_coalesced_frames(
386 rcb_common, port_idx: i, HNS_RCB_DEF_RX_COALESCED_FRAMES);
387 if (!AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver) &&
388 !HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev))
389 hns_rcb_set_tx_coalesced_frames(
390 rcb_common, port_idx: i, HNS_RCB_DEF_TX_COALESCED_FRAMES);
391 hns_rcb_set_port_timeout(
392 rcb_common, port_idx: i, HNS_RCB_DEF_COALESCED_USECS);
393 }
394
395 dsaf_write_dev(rcb_common, RCB_COM_CFG_ENDIAN_REG,
396 HNS_RCB_COMMON_ENDIAN);
397
398 if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
399 dsaf_write_dev(rcb_common, RCB_COM_CFG_FNA_REG, 0x0);
400 dsaf_write_dev(rcb_common, RCB_COM_CFG_FA_REG, 0x1);
401 } else {
402 dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_USER_REG,
403 RCB_COM_CFG_FNA_B, false);
404 dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_USER_REG,
405 RCB_COM_CFG_FA_B, true);
406 dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_TSO_MODE_REG,
407 RCB_COM_TSO_MODE_B, HNS_TSO_MODE_8BD_32K);
408 }
409
410 return 0;
411}
412
413int hns_rcb_buf_size2type(u32 buf_size)
414{
415 int bd_size_type;
416
417 switch (buf_size) {
418 case 512:
419 bd_size_type = HNS_BD_SIZE_512_TYPE;
420 break;
421 case 1024:
422 bd_size_type = HNS_BD_SIZE_1024_TYPE;
423 break;
424 case 2048:
425 bd_size_type = HNS_BD_SIZE_2048_TYPE;
426 break;
427 case 4096:
428 bd_size_type = HNS_BD_SIZE_4096_TYPE;
429 break;
430 default:
431 bd_size_type = -EINVAL;
432 }
433
434 return bd_size_type;
435}
436
437static void hns_rcb_ring_get_cfg(struct hnae_queue *q, int ring_type)
438{
439 struct hnae_ring *ring;
440 struct rcb_common_cb *rcb_common;
441 struct ring_pair_cb *ring_pair_cb;
442 u16 desc_num, mdnum_ppkt;
443 bool irq_idx, is_ver1;
444
445 ring_pair_cb = container_of(q, struct ring_pair_cb, q);
446 is_ver1 = AE_IS_VER1(ring_pair_cb->rcb_common->dsaf_dev->dsaf_ver);
447 if (ring_type == RX_RING) {
448 ring = &q->rx_ring;
449 ring->io_base = ring_pair_cb->q.io_base;
450 irq_idx = HNS_RCB_IRQ_IDX_RX;
451 mdnum_ppkt = HNS_RCB_RING_MAX_BD_PER_PKT;
452 } else {
453 ring = &q->tx_ring;
454 ring->io_base = ring_pair_cb->q.io_base +
455 HNS_RCB_TX_REG_OFFSET;
456 irq_idx = HNS_RCB_IRQ_IDX_TX;
457 mdnum_ppkt = is_ver1 ? HNS_RCB_RING_MAX_TXBD_PER_PKT :
458 HNS_RCBV2_RING_MAX_TXBD_PER_PKT;
459 }
460
461 rcb_common = ring_pair_cb->rcb_common;
462 desc_num = rcb_common->dsaf_dev->desc_num;
463
464 ring->desc = NULL;
465 ring->desc_cb = NULL;
466
467 ring->irq = ring_pair_cb->virq[irq_idx];
468 ring->desc_dma_addr = 0;
469
470 ring->buf_size = RCB_DEFAULT_BUFFER_SIZE;
471 ring->desc_num = desc_num;
472 ring->max_desc_num_per_pkt = mdnum_ppkt;
473 ring->max_raw_data_sz_per_desc = HNS_RCB_MAX_PKT_SIZE;
474 ring->max_pkt_size = HNS_RCB_MAX_PKT_SIZE;
475 ring->next_to_use = 0;
476 ring->next_to_clean = 0;
477}
478
479static void hns_rcb_ring_pair_get_cfg(struct ring_pair_cb *ring_pair_cb)
480{
481 ring_pair_cb->q.handle = NULL;
482
483 hns_rcb_ring_get_cfg(q: &ring_pair_cb->q, RX_RING);
484 hns_rcb_ring_get_cfg(q: &ring_pair_cb->q, TX_RING);
485}
486
487static int hns_rcb_get_port_in_comm(
488 struct rcb_common_cb *rcb_common, int ring_idx)
489{
490 return ring_idx / (rcb_common->max_q_per_vf * rcb_common->max_vfn);
491}
492
493#define SERVICE_RING_IRQ_IDX(v1) \
494 ((v1) ? HNS_SERVICE_RING_IRQ_IDX : HNSV2_SERVICE_RING_IRQ_IDX)
495static int hns_rcb_get_base_irq_idx(struct rcb_common_cb *rcb_common)
496{
497 bool is_ver1 = AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver);
498
499 if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev))
500 return SERVICE_RING_IRQ_IDX(is_ver1);
501 else
502 return HNS_DEBUG_RING_IRQ_IDX;
503}
504
505#define RCB_COMM_BASE_TO_RING_BASE(base, ringid)\
506 ((base) + 0x10000 + HNS_RCB_REG_OFFSET * (ringid))
507/**
508 *hns_rcb_get_cfg - get rcb config
509 *@rcb_common: rcb common device
510 */
511int hns_rcb_get_cfg(struct rcb_common_cb *rcb_common)
512{
513 struct ring_pair_cb *ring_pair_cb;
514 u32 i;
515 u32 ring_num = rcb_common->ring_num;
516 int base_irq_idx = hns_rcb_get_base_irq_idx(rcb_common);
517 struct platform_device *pdev =
518 to_platform_device(rcb_common->dsaf_dev->dev);
519 bool is_ver1 = AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver);
520
521 for (i = 0; i < ring_num; i++) {
522 ring_pair_cb = &rcb_common->ring_pair_cb[i];
523 ring_pair_cb->rcb_common = rcb_common;
524 ring_pair_cb->dev = rcb_common->dsaf_dev->dev;
525 ring_pair_cb->index = i;
526 ring_pair_cb->q.io_base =
527 RCB_COMM_BASE_TO_RING_BASE(rcb_common->io_base, i);
528 ring_pair_cb->port_id_in_comm =
529 hns_rcb_get_port_in_comm(rcb_common, ring_idx: i);
530 ring_pair_cb->virq[HNS_RCB_IRQ_IDX_TX] =
531 is_ver1 ? platform_get_irq(pdev, base_irq_idx + i * 2) :
532 platform_get_irq(pdev, base_irq_idx + i * 3 + 1);
533 ring_pair_cb->virq[HNS_RCB_IRQ_IDX_RX] =
534 is_ver1 ? platform_get_irq(pdev, base_irq_idx + i * 2 + 1) :
535 platform_get_irq(pdev, base_irq_idx + i * 3);
536 if ((ring_pair_cb->virq[HNS_RCB_IRQ_IDX_TX] == -EPROBE_DEFER) ||
537 (ring_pair_cb->virq[HNS_RCB_IRQ_IDX_RX] == -EPROBE_DEFER))
538 return -EPROBE_DEFER;
539
540 ring_pair_cb->q.phy_base =
541 RCB_COMM_BASE_TO_RING_BASE(rcb_common->phy_base, i);
542 hns_rcb_ring_pair_get_cfg(ring_pair_cb);
543 }
544
545 return 0;
546}
547
548/**
549 *hns_rcb_get_rx_coalesced_frames - get rcb port rx coalesced frames
550 *@rcb_common: rcb_common device
551 *@port_idx:port id in comm
552 *
553 *Returns: coalesced_frames
554 */
555u32 hns_rcb_get_rx_coalesced_frames(
556 struct rcb_common_cb *rcb_common, u32 port_idx)
557{
558 return dsaf_read_dev(rcb_common, RCB_CFG_PKTLINE_REG + port_idx * 4);
559}
560
561/**
562 *hns_rcb_get_tx_coalesced_frames - get rcb port tx coalesced frames
563 *@rcb_common: rcb_common device
564 *@port_idx:port id in comm
565 *
566 *Returns: coalesced_frames
567 */
568u32 hns_rcb_get_tx_coalesced_frames(
569 struct rcb_common_cb *rcb_common, u32 port_idx)
570{
571 u64 reg;
572
573 reg = RCB_CFG_PKTLINE_REG + (port_idx + HNS_RCB_TX_PKTLINE_OFFSET) * 4;
574 return dsaf_read_dev(rcb_common, reg);
575}
576
577/**
578 *hns_rcb_get_coalesce_usecs - get rcb port coalesced time_out
579 *@rcb_common: rcb_common device
580 *@port_idx:port id in comm
581 *
582 *Returns: time_out
583 */
584u32 hns_rcb_get_coalesce_usecs(
585 struct rcb_common_cb *rcb_common, u32 port_idx)
586{
587 if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver))
588 return dsaf_read_dev(rcb_common, RCB_CFG_OVERTIME_REG) /
589 HNS_RCB_CLK_FREQ_MHZ;
590 else
591 return dsaf_read_dev(rcb_common,
592 RCB_PORT_CFG_OVERTIME_REG + port_idx * 4);
593}
594
595/**
596 *hns_rcb_set_coalesce_usecs - set rcb port coalesced time_out
597 *@rcb_common: rcb_common device
598 *@port_idx:port id in comm
599 *@timeout:tx/rx time for coalesced time_out
600 *
601 * Returns:
602 * Zero for success, or an error code in case of failure
603 */
604int hns_rcb_set_coalesce_usecs(
605 struct rcb_common_cb *rcb_common, u32 port_idx, u32 timeout)
606{
607 u32 old_timeout = hns_rcb_get_coalesce_usecs(rcb_common, port_idx);
608
609 if (timeout == old_timeout)
610 return 0;
611
612 if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
613 if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev)) {
614 dev_err(rcb_common->dsaf_dev->dev,
615 "error: not support coalesce_usecs setting!\n");
616 return -EINVAL;
617 }
618 }
619 if (timeout > HNS_RCB_MAX_COALESCED_USECS || timeout == 0) {
620 dev_err(rcb_common->dsaf_dev->dev,
621 "error: coalesce_usecs setting supports 1~1023us\n");
622 return -EINVAL;
623 }
624 hns_rcb_set_port_timeout(rcb_common, port_idx, timeout);
625 return 0;
626}
627
628/**
629 *hns_rcb_set_tx_coalesced_frames - set rcb coalesced frames
630 *@rcb_common: rcb_common device
631 *@port_idx:port id in comm
632 *@coalesced_frames:tx/rx BD num for coalesced frames
633 *
634 * Returns:
635 * Zero for success, or an error code in case of failure
636 */
637int hns_rcb_set_tx_coalesced_frames(
638 struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames)
639{
640 u32 old_waterline =
641 hns_rcb_get_tx_coalesced_frames(rcb_common, port_idx);
642 u64 reg;
643
644 if (coalesced_frames == old_waterline)
645 return 0;
646
647 if (coalesced_frames != 1) {
648 dev_err(rcb_common->dsaf_dev->dev,
649 "error: not support tx coalesce_frames setting!\n");
650 return -EINVAL;
651 }
652
653 reg = RCB_CFG_PKTLINE_REG + (port_idx + HNS_RCB_TX_PKTLINE_OFFSET) * 4;
654 dsaf_write_dev(rcb_common, reg, coalesced_frames);
655 return 0;
656}
657
658/**
659 *hns_rcb_set_rx_coalesced_frames - set rcb rx coalesced frames
660 *@rcb_common: rcb_common device
661 *@port_idx:port id in comm
662 *@coalesced_frames:tx/rx BD num for coalesced frames
663 *
664 * Returns:
665 * Zero for success, or an error code in case of failure
666 */
667int hns_rcb_set_rx_coalesced_frames(
668 struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames)
669{
670 u32 old_waterline =
671 hns_rcb_get_rx_coalesced_frames(rcb_common, port_idx);
672
673 if (coalesced_frames == old_waterline)
674 return 0;
675
676 if (coalesced_frames >= rcb_common->desc_num ||
677 coalesced_frames > HNS_RCB_MAX_COALESCED_FRAMES ||
678 coalesced_frames < HNS_RCB_MIN_COALESCED_FRAMES) {
679 dev_err(rcb_common->dsaf_dev->dev,
680 "error: not support coalesce_frames setting!\n");
681 return -EINVAL;
682 }
683
684 dsaf_write_dev(rcb_common, RCB_CFG_PKTLINE_REG + port_idx * 4,
685 coalesced_frames);
686 return 0;
687}
688
689/**
690 *hns_rcb_get_queue_mode - get max VM number and max ring number per VM
691 * accordding to dsaf mode
692 *@dsaf_mode: dsaf mode
693 *@max_vfn : max vfn number
694 *@max_q_per_vf:max ring number per vm
695 */
696void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, u16 *max_vfn,
697 u16 *max_q_per_vf)
698{
699 switch (dsaf_mode) {
700 case DSAF_MODE_DISABLE_6PORT_0VM:
701 *max_vfn = 1;
702 *max_q_per_vf = 16;
703 break;
704 case DSAF_MODE_DISABLE_FIX:
705 case DSAF_MODE_DISABLE_SP:
706 *max_vfn = 1;
707 *max_q_per_vf = 1;
708 break;
709 case DSAF_MODE_DISABLE_2PORT_64VM:
710 *max_vfn = 64;
711 *max_q_per_vf = 1;
712 break;
713 case DSAF_MODE_DISABLE_6PORT_16VM:
714 *max_vfn = 16;
715 *max_q_per_vf = 1;
716 break;
717 default:
718 *max_vfn = 1;
719 *max_q_per_vf = 16;
720 break;
721 }
722}
723
724static int hns_rcb_get_ring_num(struct dsaf_device *dsaf_dev)
725{
726 switch (dsaf_dev->dsaf_mode) {
727 case DSAF_MODE_ENABLE_FIX:
728 case DSAF_MODE_DISABLE_SP:
729 return 1;
730
731 case DSAF_MODE_DISABLE_FIX:
732 return 6;
733
734 case DSAF_MODE_ENABLE_0VM:
735 return 32;
736
737 case DSAF_MODE_DISABLE_6PORT_0VM:
738 case DSAF_MODE_ENABLE_16VM:
739 case DSAF_MODE_DISABLE_6PORT_2VM:
740 case DSAF_MODE_DISABLE_6PORT_16VM:
741 case DSAF_MODE_DISABLE_6PORT_4VM:
742 case DSAF_MODE_ENABLE_8VM:
743 return 96;
744
745 case DSAF_MODE_DISABLE_2PORT_16VM:
746 case DSAF_MODE_DISABLE_2PORT_8VM:
747 case DSAF_MODE_ENABLE_32VM:
748 case DSAF_MODE_DISABLE_2PORT_64VM:
749 case DSAF_MODE_ENABLE_128VM:
750 return 128;
751
752 default:
753 dev_warn(dsaf_dev->dev,
754 "get ring num fail,use default!dsaf_mode=%d\n",
755 dsaf_dev->dsaf_mode);
756 return 128;
757 }
758}
759
760static u8 __iomem *hns_rcb_common_get_vaddr(struct rcb_common_cb *rcb_common)
761{
762 struct dsaf_device *dsaf_dev = rcb_common->dsaf_dev;
763
764 return dsaf_dev->ppe_base + RCB_COMMON_REG_OFFSET;
765}
766
767static phys_addr_t hns_rcb_common_get_paddr(struct rcb_common_cb *rcb_common)
768{
769 struct dsaf_device *dsaf_dev = rcb_common->dsaf_dev;
770
771 return dsaf_dev->ppe_paddr + RCB_COMMON_REG_OFFSET;
772}
773
774int hns_rcb_common_get_cfg(struct dsaf_device *dsaf_dev,
775 int comm_index)
776{
777 struct rcb_common_cb *rcb_common;
778 enum dsaf_mode dsaf_mode = dsaf_dev->dsaf_mode;
779 u16 max_vfn;
780 u16 max_q_per_vf;
781 int ring_num = hns_rcb_get_ring_num(dsaf_dev);
782
783 rcb_common =
784 devm_kzalloc(dev: dsaf_dev->dev,
785 struct_size(rcb_common, ring_pair_cb, ring_num),
786 GFP_KERNEL);
787 if (!rcb_common) {
788 dev_err(dsaf_dev->dev, "rcb common devm_kzalloc fail!\n");
789 return -ENOMEM;
790 }
791 rcb_common->comm_index = comm_index;
792 rcb_common->ring_num = ring_num;
793 rcb_common->dsaf_dev = dsaf_dev;
794
795 rcb_common->desc_num = dsaf_dev->desc_num;
796
797 hns_rcb_get_queue_mode(dsaf_mode, max_vfn: &max_vfn, max_q_per_vf: &max_q_per_vf);
798 rcb_common->max_vfn = max_vfn;
799 rcb_common->max_q_per_vf = max_q_per_vf;
800
801 rcb_common->io_base = hns_rcb_common_get_vaddr(rcb_common);
802 rcb_common->phy_base = hns_rcb_common_get_paddr(rcb_common);
803
804 dsaf_dev->rcb_common[comm_index] = rcb_common;
805 return 0;
806}
807
808void hns_rcb_common_free_cfg(struct dsaf_device *dsaf_dev,
809 u32 comm_index)
810{
811 dsaf_dev->rcb_common[comm_index] = NULL;
812}
813
814void hns_rcb_update_stats(struct hnae_queue *queue)
815{
816 struct ring_pair_cb *ring =
817 container_of(queue, struct ring_pair_cb, q);
818 struct dsaf_device *dsaf_dev = ring->rcb_common->dsaf_dev;
819 struct ppe_common_cb *ppe_common
820 = dsaf_dev->ppe_common[ring->rcb_common->comm_index];
821 struct hns_ring_hw_stats *hw_stats = &ring->hw_stats;
822
823 hw_stats->rx_pkts += dsaf_read_dev(queue,
824 RCB_RING_RX_RING_PKTNUM_RECORD_REG);
825 dsaf_write_dev(queue, RCB_RING_RX_RING_PKTNUM_RECORD_REG, 0x1);
826
827 hw_stats->ppe_rx_ok_pkts += dsaf_read_dev(ppe_common,
828 PPE_COM_HIS_RX_PKT_QID_OK_CNT_REG + 4 * ring->index);
829 hw_stats->ppe_rx_drop_pkts += dsaf_read_dev(ppe_common,
830 PPE_COM_HIS_RX_PKT_QID_DROP_CNT_REG + 4 * ring->index);
831
832 hw_stats->tx_pkts += dsaf_read_dev(queue,
833 RCB_RING_TX_RING_PKTNUM_RECORD_REG);
834 dsaf_write_dev(queue, RCB_RING_TX_RING_PKTNUM_RECORD_REG, 0x1);
835
836 hw_stats->ppe_tx_ok_pkts += dsaf_read_dev(ppe_common,
837 PPE_COM_HIS_TX_PKT_QID_OK_CNT_REG + 4 * ring->index);
838 hw_stats->ppe_tx_drop_pkts += dsaf_read_dev(ppe_common,
839 PPE_COM_HIS_TX_PKT_QID_ERR_CNT_REG + 4 * ring->index);
840}
841
842/**
843 *hns_rcb_get_stats - get rcb statistic
844 *@queue: rcb ring
845 *@data:statistic value
846 */
847void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data)
848{
849 u64 *regs_buff = data;
850 struct ring_pair_cb *ring =
851 container_of(queue, struct ring_pair_cb, q);
852 struct hns_ring_hw_stats *hw_stats = &ring->hw_stats;
853
854 regs_buff[0] = hw_stats->tx_pkts;
855 regs_buff[1] = hw_stats->ppe_tx_ok_pkts;
856 regs_buff[2] = hw_stats->ppe_tx_drop_pkts;
857 regs_buff[3] =
858 dsaf_read_dev(queue, RCB_RING_TX_RING_FBDNUM_REG);
859
860 regs_buff[4] = queue->tx_ring.stats.tx_pkts;
861 regs_buff[5] = queue->tx_ring.stats.tx_bytes;
862 regs_buff[6] = queue->tx_ring.stats.tx_err_cnt;
863 regs_buff[7] = queue->tx_ring.stats.io_err_cnt;
864 regs_buff[8] = queue->tx_ring.stats.sw_err_cnt;
865 regs_buff[9] = queue->tx_ring.stats.seg_pkt_cnt;
866 regs_buff[10] = queue->tx_ring.stats.restart_queue;
867 regs_buff[11] = queue->tx_ring.stats.tx_busy;
868
869 regs_buff[12] = hw_stats->rx_pkts;
870 regs_buff[13] = hw_stats->ppe_rx_ok_pkts;
871 regs_buff[14] = hw_stats->ppe_rx_drop_pkts;
872 regs_buff[15] =
873 dsaf_read_dev(queue, RCB_RING_RX_RING_FBDNUM_REG);
874
875 regs_buff[16] = queue->rx_ring.stats.rx_pkts;
876 regs_buff[17] = queue->rx_ring.stats.rx_bytes;
877 regs_buff[18] = queue->rx_ring.stats.rx_err_cnt;
878 regs_buff[19] = queue->rx_ring.stats.io_err_cnt;
879 regs_buff[20] = queue->rx_ring.stats.sw_err_cnt;
880 regs_buff[21] = queue->rx_ring.stats.seg_pkt_cnt;
881 regs_buff[22] = queue->rx_ring.stats.reuse_pg_cnt;
882 regs_buff[23] = queue->rx_ring.stats.err_pkt_len;
883 regs_buff[24] = queue->rx_ring.stats.non_vld_descs;
884 regs_buff[25] = queue->rx_ring.stats.err_bd_num;
885 regs_buff[26] = queue->rx_ring.stats.l2_err;
886 regs_buff[27] = queue->rx_ring.stats.l3l4_csum_err;
887}
888
889/**
890 *hns_rcb_get_ring_sset_count - rcb string set count
891 *@stringset:ethtool cmd
892 *return rcb ring string set count
893 */
894int hns_rcb_get_ring_sset_count(int stringset)
895{
896 if (stringset == ETH_SS_STATS)
897 return HNS_RING_STATIC_REG_NUM;
898
899 return 0;
900}
901
902/**
903 *hns_rcb_get_common_regs_count - rcb common regs count
904 *return regs count
905 */
906int hns_rcb_get_common_regs_count(void)
907{
908 return HNS_RCB_COMMON_DUMP_REG_NUM;
909}
910
911/**
912 *hns_rcb_get_ring_regs_count - rcb ring regs count
913 *return regs count
914 */
915int hns_rcb_get_ring_regs_count(void)
916{
917 return HNS_RCB_RING_DUMP_REG_NUM;
918}
919
920/**
921 *hns_rcb_get_strings - get rcb string set
922 *@stringset:string set index
923 *@data:strings name value
924 *@index:queue index
925 */
926void hns_rcb_get_strings(int stringset, u8 *data, int index)
927{
928 u8 *buff = data;
929
930 if (stringset != ETH_SS_STATS)
931 return;
932
933 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_rcb_pkt_num", index);
934 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_ppe_tx_pkt_num", index);
935 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_ppe_drop_pkt_num", index);
936 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_fbd_num", index);
937
938 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_pkt_num", index);
939 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_bytes", index);
940 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_err_cnt", index);
941 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_io_err", index);
942 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_sw_err", index);
943 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_seg_pkt", index);
944 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_restart_queue", index);
945 ethtool_sprintf(data: &buff, fmt: "tx_ring%d_tx_busy", index);
946
947 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_rcb_pkt_num", index);
948 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_ppe_pkt_num", index);
949 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_ppe_drop_pkt_num", index);
950 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_fbd_num", index);
951
952 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_pkt_num", index);
953 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_bytes", index);
954 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_err_cnt", index);
955 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_io_err", index);
956 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_sw_err", index);
957 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_seg_pkt", index);
958 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_reuse_pg", index);
959 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_len_err", index);
960 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_non_vld_desc_err", index);
961 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_bd_num_err", index);
962 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_l2_err", index);
963 ethtool_sprintf(data: &buff, fmt: "rx_ring%d_l3l4csum_err", index);
964}
965
966void hns_rcb_get_common_regs(struct rcb_common_cb *rcb_com, void *data)
967{
968 u32 *regs = data;
969 bool is_ver1 = AE_IS_VER1(rcb_com->dsaf_dev->dsaf_ver);
970 bool is_dbg = HNS_DSAF_IS_DEBUG(rcb_com->dsaf_dev);
971 u32 reg_tmp;
972 u32 reg_num_tmp;
973 u32 i;
974
975 /*rcb common registers */
976 regs[0] = dsaf_read_dev(rcb_com, RCB_COM_CFG_ENDIAN_REG);
977 regs[1] = dsaf_read_dev(rcb_com, RCB_COM_CFG_SYS_FSH_REG);
978 regs[2] = dsaf_read_dev(rcb_com, RCB_COM_CFG_INIT_FLAG_REG);
979
980 regs[3] = dsaf_read_dev(rcb_com, RCB_COM_CFG_PKT_REG);
981 regs[4] = dsaf_read_dev(rcb_com, RCB_COM_CFG_RINVLD_REG);
982 regs[5] = dsaf_read_dev(rcb_com, RCB_COM_CFG_FNA_REG);
983 regs[6] = dsaf_read_dev(rcb_com, RCB_COM_CFG_FA_REG);
984 regs[7] = dsaf_read_dev(rcb_com, RCB_COM_CFG_PKT_TC_BP_REG);
985 regs[8] = dsaf_read_dev(rcb_com, RCB_COM_CFG_PPE_TNL_CLKEN_REG);
986
987 regs[9] = dsaf_read_dev(rcb_com, RCB_COM_INTMSK_TX_PKT_REG);
988 regs[10] = dsaf_read_dev(rcb_com, RCB_COM_RINT_TX_PKT_REG);
989 regs[11] = dsaf_read_dev(rcb_com, RCB_COM_INTMASK_ECC_ERR_REG);
990 regs[12] = dsaf_read_dev(rcb_com, RCB_COM_INTSTS_ECC_ERR_REG);
991 regs[13] = dsaf_read_dev(rcb_com, RCB_COM_EBD_SRAM_ERR_REG);
992 regs[14] = dsaf_read_dev(rcb_com, RCB_COM_RXRING_ERR_REG);
993 regs[15] = dsaf_read_dev(rcb_com, RCB_COM_TXRING_ERR_REG);
994 regs[16] = dsaf_read_dev(rcb_com, RCB_COM_TX_FBD_ERR_REG);
995 regs[17] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK_EN_REG);
996 regs[18] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK0_REG);
997 regs[19] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK1_REG);
998 regs[20] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK2_REG);
999 regs[21] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK3_REG);
1000 regs[22] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK4_REG);
1001 regs[23] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK5_REG);
1002 regs[24] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR0_REG);
1003 regs[25] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR3_REG);
1004 regs[26] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR4_REG);
1005 regs[27] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR5_REG);
1006
1007 regs[28] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_INTMASK_RING);
1008 regs[29] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_RING_STS);
1009 regs[30] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_RING);
1010 regs[31] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_INTMASK_BD);
1011 regs[32] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_BD_RINT_STS);
1012 regs[33] = dsaf_read_dev(rcb_com, RCB_COM_RCB_RD_BD_BUSY);
1013 regs[34] = dsaf_read_dev(rcb_com, RCB_COM_RCB_FBD_CRT_EN);
1014 regs[35] = dsaf_read_dev(rcb_com, RCB_COM_AXI_WR_ERR_INTMASK);
1015 regs[36] = dsaf_read_dev(rcb_com, RCB_COM_AXI_ERR_STS);
1016 regs[37] = dsaf_read_dev(rcb_com, RCB_COM_CHK_TX_FBD_NUM_REG);
1017
1018 /* rcb common entry registers */
1019 for (i = 0; i < 16; i++) { /* total 16 model registers */
1020 regs[38 + i]
1021 = dsaf_read_dev(rcb_com, RCB_CFG_BD_NUM_REG + 4 * i);
1022 regs[54 + i]
1023 = dsaf_read_dev(rcb_com, RCB_CFG_PKTLINE_REG + 4 * i);
1024 }
1025
1026 reg_tmp = is_ver1 ? RCB_CFG_OVERTIME_REG : RCB_PORT_CFG_OVERTIME_REG;
1027 reg_num_tmp = (is_ver1 || is_dbg) ? 1 : 6;
1028 for (i = 0; i < reg_num_tmp; i++)
1029 regs[70 + i] = dsaf_read_dev(rcb_com, reg_tmp);
1030
1031 regs[76] = dsaf_read_dev(rcb_com, RCB_CFG_PKTLINE_INT_NUM_REG);
1032 regs[77] = dsaf_read_dev(rcb_com, RCB_CFG_OVERTIME_INT_NUM_REG);
1033
1034 /* mark end of rcb common regs */
1035 for (i = 78; i < 80; i++)
1036 regs[i] = 0xcccccccc;
1037}
1038
1039void hns_rcb_get_ring_regs(struct hnae_queue *queue, void *data)
1040{
1041 u32 *regs = data;
1042 struct ring_pair_cb *ring_pair
1043 = container_of(queue, struct ring_pair_cb, q);
1044 u32 i;
1045
1046 /*rcb ring registers */
1047 regs[0] = dsaf_read_dev(queue, RCB_RING_RX_RING_BASEADDR_L_REG);
1048 regs[1] = dsaf_read_dev(queue, RCB_RING_RX_RING_BASEADDR_H_REG);
1049 regs[2] = dsaf_read_dev(queue, RCB_RING_RX_RING_BD_NUM_REG);
1050 regs[3] = dsaf_read_dev(queue, RCB_RING_RX_RING_BD_LEN_REG);
1051 regs[4] = dsaf_read_dev(queue, RCB_RING_RX_RING_PKTLINE_REG);
1052 regs[5] = dsaf_read_dev(queue, RCB_RING_RX_RING_TAIL_REG);
1053 regs[6] = dsaf_read_dev(queue, RCB_RING_RX_RING_HEAD_REG);
1054 regs[7] = dsaf_read_dev(queue, RCB_RING_RX_RING_FBDNUM_REG);
1055 regs[8] = dsaf_read_dev(queue, RCB_RING_RX_RING_PKTNUM_RECORD_REG);
1056
1057 regs[9] = dsaf_read_dev(queue, RCB_RING_TX_RING_BASEADDR_L_REG);
1058 regs[10] = dsaf_read_dev(queue, RCB_RING_TX_RING_BASEADDR_H_REG);
1059 regs[11] = dsaf_read_dev(queue, RCB_RING_TX_RING_BD_NUM_REG);
1060 regs[12] = dsaf_read_dev(queue, RCB_RING_TX_RING_BD_LEN_REG);
1061 regs[13] = dsaf_read_dev(queue, RCB_RING_TX_RING_PKTLINE_REG);
1062 regs[15] = dsaf_read_dev(queue, RCB_RING_TX_RING_TAIL_REG);
1063 regs[16] = dsaf_read_dev(queue, RCB_RING_TX_RING_HEAD_REG);
1064 regs[17] = dsaf_read_dev(queue, RCB_RING_TX_RING_FBDNUM_REG);
1065 regs[18] = dsaf_read_dev(queue, RCB_RING_TX_RING_OFFSET_REG);
1066 regs[19] = dsaf_read_dev(queue, RCB_RING_TX_RING_PKTNUM_RECORD_REG);
1067
1068 regs[20] = dsaf_read_dev(queue, RCB_RING_PREFETCH_EN_REG);
1069 regs[21] = dsaf_read_dev(queue, RCB_RING_CFG_VF_NUM_REG);
1070 regs[22] = dsaf_read_dev(queue, RCB_RING_ASID_REG);
1071 regs[23] = dsaf_read_dev(queue, RCB_RING_RX_VM_REG);
1072 regs[24] = dsaf_read_dev(queue, RCB_RING_T0_BE_RST);
1073 regs[25] = dsaf_read_dev(queue, RCB_RING_COULD_BE_RST);
1074 regs[26] = dsaf_read_dev(queue, RCB_RING_WRR_WEIGHT_REG);
1075
1076 regs[27] = dsaf_read_dev(queue, RCB_RING_INTMSK_RXWL_REG);
1077 regs[28] = dsaf_read_dev(queue, RCB_RING_INTSTS_RX_RING_REG);
1078 regs[29] = dsaf_read_dev(queue, RCB_RING_INTMSK_TXWL_REG);
1079 regs[30] = dsaf_read_dev(queue, RCB_RING_INTSTS_TX_RING_REG);
1080 regs[31] = dsaf_read_dev(queue, RCB_RING_INTMSK_RX_OVERTIME_REG);
1081 regs[32] = dsaf_read_dev(queue, RCB_RING_INTSTS_RX_OVERTIME_REG);
1082 regs[33] = dsaf_read_dev(queue, RCB_RING_INTMSK_TX_OVERTIME_REG);
1083 regs[34] = dsaf_read_dev(queue, RCB_RING_INTSTS_TX_OVERTIME_REG);
1084
1085 /* mark end of ring regs */
1086 for (i = 35; i < 40; i++)
1087 regs[i] = 0xcccccc00 + ring_pair->index;
1088}
1089

source code of linux/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c