2 * Copyright (c) 2014-2015 Hisilicon Limited.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
10 #include <linux/cdev.h>
11 #include <linux/module.h>
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/netdevice.h>
15 #include <linux/etherdevice.h>
16 #include <asm/cacheflush.h>
17 #include <linux/platform_device.h>
19 #include <linux/of_address.h>
20 #include <linux/of_platform.h>
21 #include <linux/of_irq.h>
22 #include <linux/spinlock.h>
24 #include "hns_dsaf_main.h"
25 #include "hns_dsaf_ppe.h"
26 #include "hns_dsaf_rcb.h"
28 #define RCB_COMMON_REG_OFFSET 0x80000
32 #define RCB_RESET_WAIT_TIMES 30
33 #define RCB_RESET_TRY_TIMES 10
36 *hns_rcb_wait_fbd_clean - clean fbd
37 *@qs: ring struct pointer array
41 void hns_rcb_wait_fbd_clean(struct hnae_queue
**qs
, int q_num
, u32 flag
)
46 for (wait_cnt
= i
= 0; i
< q_num
; wait_cnt
++) {
47 usleep_range(200, 300);
49 if (flag
& RCB_INT_FLAG_TX
)
50 fbd_num
+= dsaf_read_dev(qs
[i
],
51 RCB_RING_TX_RING_FBDNUM_REG
);
52 if (flag
& RCB_INT_FLAG_RX
)
53 fbd_num
+= dsaf_read_dev(qs
[i
],
54 RCB_RING_RX_RING_FBDNUM_REG
);
57 if (wait_cnt
>= 10000)
62 dev_err(qs
[i
]->handle
->owner_dev
,
63 "queue(%d) wait fbd(%d) clean fail!!\n", i
, fbd_num
);
67 *hns_rcb_reset_ring_hw - ring reset
68 *@q: ring struct pointer
70 void hns_rcb_reset_ring_hw(struct hnae_queue
*q
)
78 while (try_cnt
++ < RCB_RESET_TRY_TIMES
) {
79 usleep_range(100, 200);
80 tx_fbd_num
= dsaf_read_dev(q
, RCB_RING_TX_RING_FBDNUM_REG
);
84 dsaf_write_dev(q
, RCB_RING_PREFETCH_EN_REG
, 0);
86 dsaf_write_dev(q
, RCB_RING_T0_BE_RST
, 1);
89 could_ret
= dsaf_read_dev(q
, RCB_RING_COULD_BE_RST
);
92 while (!could_ret
&& (wait_cnt
< RCB_RESET_WAIT_TIMES
)) {
93 dsaf_write_dev(q
, RCB_RING_T0_BE_RST
, 0);
95 dsaf_write_dev(q
, RCB_RING_T0_BE_RST
, 1);
98 could_ret
= dsaf_read_dev(q
, RCB_RING_COULD_BE_RST
);
103 dsaf_write_dev(q
, RCB_RING_T0_BE_RST
, 0);
109 if (try_cnt
>= RCB_RESET_TRY_TIMES
)
110 dev_err(q
->dev
->dev
, "port%d reset ring fail\n",
111 hns_ae_get_vf_cb(q
->handle
)->port_index
);
115 *hns_rcb_int_ctrl_hw - rcb irq enable control
116 *@q: hnae queue struct pointer
117 *@flag:ring flag tx or rx
120 void hns_rcb_int_ctrl_hw(struct hnae_queue
*q
, u32 flag
, u32 mask
)
122 u32 int_mask_en
= !!mask
;
124 if (flag
& RCB_INT_FLAG_TX
) {
125 dsaf_write_dev(q
, RCB_RING_INTMSK_TXWL_REG
, int_mask_en
);
126 dsaf_write_dev(q
, RCB_RING_INTMSK_TX_OVERTIME_REG
,
130 if (flag
& RCB_INT_FLAG_RX
) {
131 dsaf_write_dev(q
, RCB_RING_INTMSK_RXWL_REG
, int_mask_en
);
132 dsaf_write_dev(q
, RCB_RING_INTMSK_RX_OVERTIME_REG
,
137 void hns_rcb_int_clr_hw(struct hnae_queue
*q
, u32 flag
)
139 if (flag
& RCB_INT_FLAG_TX
) {
140 dsaf_write_dev(q
, RCB_RING_INTSTS_TX_RING_REG
, 1);
141 dsaf_write_dev(q
, RCB_RING_INTSTS_TX_OVERTIME_REG
, 1);
144 if (flag
& RCB_INT_FLAG_RX
) {
145 dsaf_write_dev(q
, RCB_RING_INTSTS_RX_RING_REG
, 1);
146 dsaf_write_dev(q
, RCB_RING_INTSTS_RX_OVERTIME_REG
, 1);
150 void hns_rcbv2_int_ctrl_hw(struct hnae_queue
*q
, u32 flag
, u32 mask
)
152 u32 int_mask_en
= !!mask
;
154 if (flag
& RCB_INT_FLAG_TX
)
155 dsaf_write_dev(q
, RCB_RING_INTMSK_TXWL_REG
, int_mask_en
);
157 if (flag
& RCB_INT_FLAG_RX
)
158 dsaf_write_dev(q
, RCB_RING_INTMSK_RXWL_REG
, int_mask_en
);
161 void hns_rcbv2_int_clr_hw(struct hnae_queue
*q
, u32 flag
)
163 if (flag
& RCB_INT_FLAG_TX
)
164 dsaf_write_dev(q
, RCBV2_TX_RING_INT_STS_REG
, 1);
166 if (flag
& RCB_INT_FLAG_RX
)
167 dsaf_write_dev(q
, RCBV2_RX_RING_INT_STS_REG
, 1);
171 *hns_rcb_ring_enable_hw - enable ring
174 void hns_rcb_ring_enable_hw(struct hnae_queue
*q
, u32 val
)
176 dsaf_write_dev(q
, RCB_RING_PREFETCH_EN_REG
, !!val
);
179 void hns_rcb_start(struct hnae_queue
*q
, u32 val
)
181 hns_rcb_ring_enable_hw(q
, val
);
185 *hns_rcb_common_init_commit_hw - make rcb common init completed
186 *@rcb_common: rcb common device
188 void hns_rcb_common_init_commit_hw(struct rcb_common_cb
*rcb_common
)
190 wmb(); /* Sync point before breakpoint */
191 dsaf_write_dev(rcb_common
, RCB_COM_CFG_SYS_FSH_REG
, 1);
192 wmb(); /* Sync point after breakpoint */
196 *hns_rcb_ring_init - init rcb ring
197 *@ring_pair: ring pair control block
198 *@ring_type: ring type, RX_RING or TX_RING
200 static void hns_rcb_ring_init(struct ring_pair_cb
*ring_pair
, int ring_type
)
202 struct hnae_queue
*q
= &ring_pair
->q
;
203 struct rcb_common_cb
*rcb_common
= ring_pair
->rcb_common
;
204 u32 bd_size_type
= rcb_common
->dsaf_dev
->buf_size_type
;
205 struct hnae_ring
*ring
=
206 (ring_type
== RX_RING
) ? &q
->rx_ring
: &q
->tx_ring
;
207 dma_addr_t dma
= ring
->desc_dma_addr
;
209 if (ring_type
== RX_RING
) {
210 dsaf_write_dev(q
, RCB_RING_RX_RING_BASEADDR_L_REG
,
212 dsaf_write_dev(q
, RCB_RING_RX_RING_BASEADDR_H_REG
,
213 (u32
)((dma
>> 31) >> 1));
215 dsaf_write_dev(q
, RCB_RING_RX_RING_BD_LEN_REG
,
217 dsaf_write_dev(q
, RCB_RING_RX_RING_BD_NUM_REG
,
218 ring_pair
->port_id_in_comm
);
219 dsaf_write_dev(q
, RCB_RING_RX_RING_PKTLINE_REG
,
220 ring_pair
->port_id_in_comm
);
222 dsaf_write_dev(q
, RCB_RING_TX_RING_BASEADDR_L_REG
,
224 dsaf_write_dev(q
, RCB_RING_TX_RING_BASEADDR_H_REG
,
225 (u32
)((dma
>> 31) >> 1));
227 dsaf_write_dev(q
, RCB_RING_TX_RING_BD_LEN_REG
,
229 dsaf_write_dev(q
, RCB_RING_TX_RING_BD_NUM_REG
,
230 ring_pair
->port_id_in_comm
);
231 dsaf_write_dev(q
, RCB_RING_TX_RING_PKTLINE_REG
,
232 ring_pair
->port_id_in_comm
);
237 *hns_rcb_init_hw - init rcb hardware
240 void hns_rcb_init_hw(struct ring_pair_cb
*ring
)
242 hns_rcb_ring_init(ring
, RX_RING
);
243 hns_rcb_ring_init(ring
, TX_RING
);
247 *hns_rcb_set_port_desc_cnt - set rcb port description num
248 *@rcb_common: rcb_common device
249 *@port_idx:port index
252 static void hns_rcb_set_port_desc_cnt(struct rcb_common_cb
*rcb_common
,
253 u32 port_idx
, u32 desc_cnt
)
255 dsaf_write_dev(rcb_common
, RCB_CFG_BD_NUM_REG
+ port_idx
* 4,
259 static void hns_rcb_set_port_timeout(
260 struct rcb_common_cb
*rcb_common
, u32 port_idx
, u32 timeout
)
262 if (AE_IS_VER1(rcb_common
->dsaf_dev
->dsaf_ver
))
263 dsaf_write_dev(rcb_common
, RCB_CFG_OVERTIME_REG
,
264 timeout
* HNS_RCB_CLK_FREQ_MHZ
);
266 dsaf_write_dev(rcb_common
,
267 RCB_PORT_CFG_OVERTIME_REG
+ port_idx
* 4,
271 static int hns_rcb_common_get_port_num(struct rcb_common_cb
*rcb_common
)
273 if (!HNS_DSAF_IS_DEBUG(rcb_common
->dsaf_dev
))
274 return HNS_RCB_SERVICE_NW_ENGINE_NUM
;
276 return HNS_RCB_DEBUG_NW_ENGINE_NUM
;
279 /*clr rcb comm exception irq**/
280 static void hns_rcb_comm_exc_irq_en(
281 struct rcb_common_cb
*rcb_common
, int en
)
283 u32 clr_vlue
= 0xfffffffful
;
284 u32 msk_vlue
= en
? 0 : 0xfffffffful
;
287 dsaf_write_dev(rcb_common
, RCB_COM_INTSTS_ECC_ERR_REG
, clr_vlue
);
289 dsaf_write_dev(rcb_common
, RCB_COM_SF_CFG_RING_STS
, clr_vlue
);
291 dsaf_write_dev(rcb_common
, RCB_COM_SF_CFG_BD_RINT_STS
, clr_vlue
);
293 dsaf_write_dev(rcb_common
, RCB_COM_RINT_TX_PKT_REG
, clr_vlue
);
294 dsaf_write_dev(rcb_common
, RCB_COM_AXI_ERR_STS
, clr_vlue
);
297 dsaf_write_dev(rcb_common
, RCB_COM_INTMASK_ECC_ERR_REG
, msk_vlue
);
299 dsaf_write_dev(rcb_common
, RCB_COM_SF_CFG_INTMASK_RING
, msk_vlue
);
301 /*for tx bd neednot cacheline, so msk sf_txring_fbd_intmask (bit 1)**/
302 dsaf_write_dev(rcb_common
, RCB_COM_SF_CFG_INTMASK_BD
, msk_vlue
| 2);
304 dsaf_write_dev(rcb_common
, RCB_COM_INTMSK_TX_PKT_REG
, msk_vlue
);
305 dsaf_write_dev(rcb_common
, RCB_COM_AXI_WR_ERR_INTMASK
, msk_vlue
);
309 *hns_rcb_common_init_hw - init rcb common hardware
310 *@rcb_common: rcb_common device
311 *retuen 0 - success , negative --fail
313 int hns_rcb_common_init_hw(struct rcb_common_cb
*rcb_common
)
317 int port_num
= hns_rcb_common_get_port_num(rcb_common
);
319 hns_rcb_comm_exc_irq_en(rcb_common
, 0);
321 reg_val
= dsaf_read_dev(rcb_common
, RCB_COM_CFG_INIT_FLAG_REG
);
322 if (0x1 != (reg_val
& 0x1)) {
323 dev_err(rcb_common
->dsaf_dev
->dev
,
324 "RCB_COM_CFG_INIT_FLAG_REG reg = 0x%x\n", reg_val
);
328 for (i
= 0; i
< port_num
; i
++) {
329 hns_rcb_set_port_desc_cnt(rcb_common
, i
, rcb_common
->desc_num
);
330 (void)hns_rcb_set_coalesced_frames(
331 rcb_common
, i
, HNS_RCB_DEF_COALESCED_FRAMES
);
332 hns_rcb_set_port_timeout(
333 rcb_common
, i
, HNS_RCB_DEF_COALESCED_USECS
);
336 dsaf_write_dev(rcb_common
, RCB_COM_CFG_ENDIAN_REG
,
337 HNS_RCB_COMMON_ENDIAN
);
339 if (AE_IS_VER1(rcb_common
->dsaf_dev
->dsaf_ver
)) {
340 dsaf_write_dev(rcb_common
, RCB_COM_CFG_FNA_REG
, 0x0);
341 dsaf_write_dev(rcb_common
, RCB_COM_CFG_FA_REG
, 0x1);
343 dsaf_set_dev_bit(rcb_common
, RCBV2_COM_CFG_USER_REG
,
344 RCB_COM_CFG_FNA_B
, false);
345 dsaf_set_dev_bit(rcb_common
, RCBV2_COM_CFG_USER_REG
,
346 RCB_COM_CFG_FA_B
, true);
347 dsaf_set_dev_bit(rcb_common
, RCBV2_COM_CFG_TSO_MODE_REG
,
348 RCB_COM_TSO_MODE_B
, HNS_TSO_MODE_8BD_32K
);
354 int hns_rcb_buf_size2type(u32 buf_size
)
360 bd_size_type
= HNS_BD_SIZE_512_TYPE
;
363 bd_size_type
= HNS_BD_SIZE_1024_TYPE
;
366 bd_size_type
= HNS_BD_SIZE_2048_TYPE
;
369 bd_size_type
= HNS_BD_SIZE_4096_TYPE
;
372 bd_size_type
= -EINVAL
;
378 static void hns_rcb_ring_get_cfg(struct hnae_queue
*q
, int ring_type
)
380 struct hnae_ring
*ring
;
381 struct rcb_common_cb
*rcb_common
;
382 struct ring_pair_cb
*ring_pair_cb
;
384 u16 desc_num
, mdnum_ppkt
;
385 bool irq_idx
, is_ver1
;
387 ring_pair_cb
= container_of(q
, struct ring_pair_cb
, q
);
388 is_ver1
= AE_IS_VER1(ring_pair_cb
->rcb_common
->dsaf_dev
->dsaf_ver
);
389 if (ring_type
== RX_RING
) {
391 ring
->io_base
= ring_pair_cb
->q
.io_base
;
392 irq_idx
= HNS_RCB_IRQ_IDX_RX
;
393 mdnum_ppkt
= HNS_RCB_RING_MAX_BD_PER_PKT
;
396 ring
->io_base
= (u8 __iomem
*)ring_pair_cb
->q
.io_base
+
397 HNS_RCB_TX_REG_OFFSET
;
398 irq_idx
= HNS_RCB_IRQ_IDX_TX
;
399 mdnum_ppkt
= is_ver1
? HNS_RCB_RING_MAX_TXBD_PER_PKT
:
400 HNS_RCBV2_RING_MAX_TXBD_PER_PKT
;
403 rcb_common
= ring_pair_cb
->rcb_common
;
404 buf_size
= rcb_common
->dsaf_dev
->buf_size
;
405 desc_num
= rcb_common
->dsaf_dev
->desc_num
;
408 ring
->desc_cb
= NULL
;
410 ring
->irq
= ring_pair_cb
->virq
[irq_idx
];
411 ring
->desc_dma_addr
= 0;
413 ring
->buf_size
= buf_size
;
414 ring
->desc_num
= desc_num
;
415 ring
->max_desc_num_per_pkt
= mdnum_ppkt
;
416 ring
->max_raw_data_sz_per_desc
= HNS_RCB_MAX_PKT_SIZE
;
417 ring
->max_pkt_size
= HNS_RCB_MAX_PKT_SIZE
;
418 ring
->next_to_use
= 0;
419 ring
->next_to_clean
= 0;
422 static void hns_rcb_ring_pair_get_cfg(struct ring_pair_cb
*ring_pair_cb
)
424 ring_pair_cb
->q
.handle
= NULL
;
426 hns_rcb_ring_get_cfg(&ring_pair_cb
->q
, RX_RING
);
427 hns_rcb_ring_get_cfg(&ring_pair_cb
->q
, TX_RING
);
430 static int hns_rcb_get_port_in_comm(
431 struct rcb_common_cb
*rcb_common
, int ring_idx
)
436 if (!HNS_DSAF_IS_DEBUG(rcb_common
->dsaf_dev
)) {
437 q_num
= (int)rcb_common
->max_q_per_vf
* rcb_common
->max_vfn
;
438 port
= ring_idx
/ q_num
;
440 port
= 0; /* config debug-ports port_id_in_comm to 0*/
446 #define SERVICE_RING_IRQ_IDX(v1) \
447 ((v1) ? HNS_SERVICE_RING_IRQ_IDX : HNSV2_SERVICE_RING_IRQ_IDX)
448 #define DEBUG_RING_IRQ_IDX(v1) \
449 ((v1) ? HNS_DEBUG_RING_IRQ_IDX : HNSV2_DEBUG_RING_IRQ_IDX)
450 #define DEBUG_RING_IRQ_OFFSET(v1) \
451 ((v1) ? HNS_DEBUG_RING_IRQ_OFFSET : HNSV2_DEBUG_RING_IRQ_OFFSET)
452 static int hns_rcb_get_base_irq_idx(struct rcb_common_cb
*rcb_common
)
454 int comm_index
= rcb_common
->comm_index
;
455 bool is_ver1
= AE_IS_VER1(rcb_common
->dsaf_dev
->dsaf_ver
);
457 if (!HNS_DSAF_IS_DEBUG(rcb_common
->dsaf_dev
))
458 return SERVICE_RING_IRQ_IDX(is_ver1
);
460 return DEBUG_RING_IRQ_IDX(is_ver1
) +
461 (comm_index
- 1) * DEBUG_RING_IRQ_OFFSET(is_ver1
);
464 #define RCB_COMM_BASE_TO_RING_BASE(base, ringid)\
465 ((base) + 0x10000 + HNS_RCB_REG_OFFSET * (ringid))
467 *hns_rcb_get_cfg - get rcb config
468 *@rcb_common: rcb common device
470 void hns_rcb_get_cfg(struct rcb_common_cb
*rcb_common
)
472 struct ring_pair_cb
*ring_pair_cb
;
474 u32 ring_num
= rcb_common
->ring_num
;
475 int base_irq_idx
= hns_rcb_get_base_irq_idx(rcb_common
);
476 struct device_node
*np
= rcb_common
->dsaf_dev
->dev
->of_node
;
477 struct platform_device
*pdev
=
478 to_platform_device(rcb_common
->dsaf_dev
->dev
);
479 bool is_ver1
= AE_IS_VER1(rcb_common
->dsaf_dev
->dsaf_ver
);
481 for (i
= 0; i
< ring_num
; i
++) {
482 ring_pair_cb
= &rcb_common
->ring_pair_cb
[i
];
483 ring_pair_cb
->rcb_common
= rcb_common
;
484 ring_pair_cb
->dev
= rcb_common
->dsaf_dev
->dev
;
485 ring_pair_cb
->index
= i
;
486 ring_pair_cb
->q
.io_base
=
487 RCB_COMM_BASE_TO_RING_BASE(rcb_common
->io_base
, i
);
488 ring_pair_cb
->port_id_in_comm
=
489 hns_rcb_get_port_in_comm(rcb_common
, i
);
490 ring_pair_cb
->virq
[HNS_RCB_IRQ_IDX_TX
] =
491 is_ver1
? irq_of_parse_and_map(np
, base_irq_idx
+ i
* 2) :
492 platform_get_irq(pdev
, base_irq_idx
+ i
* 3 + 1);
493 ring_pair_cb
->virq
[HNS_RCB_IRQ_IDX_RX
] =
494 is_ver1
? irq_of_parse_and_map(np
, base_irq_idx
+ i
* 2 + 1) :
495 platform_get_irq(pdev
, base_irq_idx
+ i
* 3);
496 ring_pair_cb
->q
.phy_base
=
497 RCB_COMM_BASE_TO_RING_BASE(rcb_common
->phy_base
, i
);
498 hns_rcb_ring_pair_get_cfg(ring_pair_cb
);
503 *hns_rcb_get_coalesced_frames - get rcb port coalesced frames
504 *@rcb_common: rcb_common device
505 *@port_idx:port id in comm
507 *Returns: coalesced_frames
509 u32
hns_rcb_get_coalesced_frames(
510 struct rcb_common_cb
*rcb_common
, u32 port_idx
)
512 return dsaf_read_dev(rcb_common
, RCB_CFG_PKTLINE_REG
+ port_idx
* 4);
516 *hns_rcb_get_coalesce_usecs - get rcb port coalesced time_out
517 *@rcb_common: rcb_common device
518 *@port_idx:port id in comm
522 u32
hns_rcb_get_coalesce_usecs(
523 struct rcb_common_cb
*rcb_common
, u32 port_idx
)
525 if (AE_IS_VER1(rcb_common
->dsaf_dev
->dsaf_ver
))
526 return dsaf_read_dev(rcb_common
, RCB_CFG_OVERTIME_REG
) /
527 HNS_RCB_CLK_FREQ_MHZ
;
529 return dsaf_read_dev(rcb_common
,
530 RCB_PORT_CFG_OVERTIME_REG
+ port_idx
* 4);
534 *hns_rcb_set_coalesce_usecs - set rcb port coalesced time_out
535 *@rcb_common: rcb_common device
536 *@port_idx:port id in comm
537 *@timeout:tx/rx time for coalesced time_out
540 * Zero for success, or an error code in case of failure
542 int hns_rcb_set_coalesce_usecs(
543 struct rcb_common_cb
*rcb_common
, u32 port_idx
, u32 timeout
)
545 u32 old_timeout
= hns_rcb_get_coalesce_usecs(rcb_common
, port_idx
);
547 if (timeout
== old_timeout
)
550 if (AE_IS_VER1(rcb_common
->dsaf_dev
->dsaf_ver
)) {
551 if (!HNS_DSAF_IS_DEBUG(rcb_common
->dsaf_dev
)) {
552 dev_err(rcb_common
->dsaf_dev
->dev
,
553 "error: not support coalesce_usecs setting!\n");
557 if (timeout
> HNS_RCB_MAX_COALESCED_USECS
) {
558 dev_err(rcb_common
->dsaf_dev
->dev
,
559 "error: not support coalesce %dus!\n", timeout
);
562 hns_rcb_set_port_timeout(rcb_common
, port_idx
, timeout
);
567 *hns_rcb_set_coalesced_frames - set rcb coalesced frames
568 *@rcb_common: rcb_common device
569 *@port_idx:port id in comm
570 *@coalesced_frames:tx/rx BD num for coalesced frames
573 * Zero for success, or an error code in case of failure
575 int hns_rcb_set_coalesced_frames(
576 struct rcb_common_cb
*rcb_common
, u32 port_idx
, u32 coalesced_frames
)
578 u32 old_waterline
= hns_rcb_get_coalesced_frames(rcb_common
, port_idx
);
580 if (coalesced_frames
== old_waterline
)
583 if (coalesced_frames
>= rcb_common
->desc_num
||
584 coalesced_frames
> HNS_RCB_MAX_COALESCED_FRAMES
||
585 coalesced_frames
< HNS_RCB_MIN_COALESCED_FRAMES
) {
586 dev_err(rcb_common
->dsaf_dev
->dev
,
587 "error: not support coalesce_frames setting!\n");
591 dsaf_write_dev(rcb_common
, RCB_CFG_PKTLINE_REG
+ port_idx
* 4,
597 *hns_rcb_get_queue_mode - get max VM number and max ring number per VM
598 * accordding to dsaf mode
599 *@dsaf_mode: dsaf mode
600 *@max_vfn : max vfn number
601 *@max_q_per_vf:max ring number per vm
603 void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode
, u16
*max_vfn
,
607 case DSAF_MODE_DISABLE_6PORT_0VM
:
611 case DSAF_MODE_DISABLE_FIX
:
612 case DSAF_MODE_DISABLE_SP
:
616 case DSAF_MODE_DISABLE_2PORT_64VM
:
620 case DSAF_MODE_DISABLE_6PORT_16VM
:
631 int hns_rcb_get_ring_num(struct dsaf_device
*dsaf_dev
)
633 switch (dsaf_dev
->dsaf_mode
) {
634 case DSAF_MODE_ENABLE_FIX
:
635 case DSAF_MODE_DISABLE_SP
:
638 case DSAF_MODE_DISABLE_FIX
:
641 case DSAF_MODE_ENABLE_0VM
:
644 case DSAF_MODE_DISABLE_6PORT_0VM
:
645 case DSAF_MODE_ENABLE_16VM
:
646 case DSAF_MODE_DISABLE_6PORT_2VM
:
647 case DSAF_MODE_DISABLE_6PORT_16VM
:
648 case DSAF_MODE_DISABLE_6PORT_4VM
:
649 case DSAF_MODE_ENABLE_8VM
:
652 case DSAF_MODE_DISABLE_2PORT_16VM
:
653 case DSAF_MODE_DISABLE_2PORT_8VM
:
654 case DSAF_MODE_ENABLE_32VM
:
655 case DSAF_MODE_DISABLE_2PORT_64VM
:
656 case DSAF_MODE_ENABLE_128VM
:
660 dev_warn(dsaf_dev
->dev
,
661 "get ring num fail,use default!dsaf_mode=%d\n",
662 dsaf_dev
->dsaf_mode
);
667 void __iomem
*hns_rcb_common_get_vaddr(struct dsaf_device
*dsaf_dev
,
670 void __iomem
*base_addr
;
672 if (!HNS_DSAF_IS_DEBUG(dsaf_dev
))
673 base_addr
= dsaf_dev
->ppe_base
+ RCB_COMMON_REG_OFFSET
;
675 base_addr
= dsaf_dev
->sds_base
676 + (comm_index
- 1) * HNS_DSAF_DEBUG_NW_REG_OFFSET
677 + RCB_COMMON_REG_OFFSET
;
682 static phys_addr_t
hns_rcb_common_get_paddr(struct dsaf_device
*dsaf_dev
,
685 struct device_node
*np
= dsaf_dev
->dev
->of_node
;
686 phys_addr_t phy_addr
;
687 const __be32
*tmp_addr
;
692 if (!HNS_DSAF_IS_DEBUG(dsaf_dev
)) {
694 addr_offset
= RCB_COMMON_REG_OFFSET
;
697 addr_offset
= (comm_index
- 1) * HNS_DSAF_DEBUG_NW_REG_OFFSET
+
698 RCB_COMMON_REG_OFFSET
;
700 tmp_addr
= of_get_address(np
, index
, &size
, NULL
);
701 phy_addr
= of_translate_address(np
, tmp_addr
);
702 return phy_addr
+ addr_offset
;
705 int hns_rcb_common_get_cfg(struct dsaf_device
*dsaf_dev
,
708 struct rcb_common_cb
*rcb_common
;
709 enum dsaf_mode dsaf_mode
= dsaf_dev
->dsaf_mode
;
712 int ring_num
= hns_rcb_get_ring_num(dsaf_dev
);
715 devm_kzalloc(dsaf_dev
->dev
, sizeof(*rcb_common
) +
716 ring_num
* sizeof(struct ring_pair_cb
), GFP_KERNEL
);
718 dev_err(dsaf_dev
->dev
, "rcb common devm_kzalloc fail!\n");
721 rcb_common
->comm_index
= comm_index
;
722 rcb_common
->ring_num
= ring_num
;
723 rcb_common
->dsaf_dev
= dsaf_dev
;
725 rcb_common
->desc_num
= dsaf_dev
->desc_num
;
727 hns_rcb_get_queue_mode(dsaf_mode
, &max_vfn
, &max_q_per_vf
);
728 rcb_common
->max_vfn
= max_vfn
;
729 rcb_common
->max_q_per_vf
= max_q_per_vf
;
731 rcb_common
->io_base
= hns_rcb_common_get_vaddr(dsaf_dev
, comm_index
);
732 rcb_common
->phy_base
= hns_rcb_common_get_paddr(dsaf_dev
, comm_index
);
734 dsaf_dev
->rcb_common
[comm_index
] = rcb_common
;
738 void hns_rcb_common_free_cfg(struct dsaf_device
*dsaf_dev
,
741 dsaf_dev
->rcb_common
[comm_index
] = NULL
;
744 void hns_rcb_update_stats(struct hnae_queue
*queue
)
746 struct ring_pair_cb
*ring
=
747 container_of(queue
, struct ring_pair_cb
, q
);
748 struct dsaf_device
*dsaf_dev
= ring
->rcb_common
->dsaf_dev
;
749 struct ppe_common_cb
*ppe_common
750 = dsaf_dev
->ppe_common
[ring
->rcb_common
->comm_index
];
751 struct hns_ring_hw_stats
*hw_stats
= &ring
->hw_stats
;
753 hw_stats
->rx_pkts
+= dsaf_read_dev(queue
,
754 RCB_RING_RX_RING_PKTNUM_RECORD_REG
);
755 dsaf_write_dev(queue
, RCB_RING_RX_RING_PKTNUM_RECORD_REG
, 0x1);
757 hw_stats
->ppe_rx_ok_pkts
+= dsaf_read_dev(ppe_common
,
758 PPE_COM_HIS_RX_PKT_QID_OK_CNT_REG
+ 4 * ring
->index
);
759 hw_stats
->ppe_rx_drop_pkts
+= dsaf_read_dev(ppe_common
,
760 PPE_COM_HIS_RX_PKT_QID_DROP_CNT_REG
+ 4 * ring
->index
);
762 hw_stats
->tx_pkts
+= dsaf_read_dev(queue
,
763 RCB_RING_TX_RING_PKTNUM_RECORD_REG
);
764 dsaf_write_dev(queue
, RCB_RING_TX_RING_PKTNUM_RECORD_REG
, 0x1);
766 hw_stats
->ppe_tx_ok_pkts
+= dsaf_read_dev(ppe_common
,
767 PPE_COM_HIS_TX_PKT_QID_OK_CNT_REG
+ 4 * ring
->index
);
768 hw_stats
->ppe_tx_drop_pkts
+= dsaf_read_dev(ppe_common
,
769 PPE_COM_HIS_TX_PKT_QID_ERR_CNT_REG
+ 4 * ring
->index
);
773 *hns_rcb_get_stats - get rcb statistic
775 *@data:statistic value
777 void hns_rcb_get_stats(struct hnae_queue
*queue
, u64
*data
)
779 u64
*regs_buff
= data
;
780 struct ring_pair_cb
*ring
=
781 container_of(queue
, struct ring_pair_cb
, q
);
782 struct hns_ring_hw_stats
*hw_stats
= &ring
->hw_stats
;
784 regs_buff
[0] = hw_stats
->tx_pkts
;
785 regs_buff
[1] = hw_stats
->ppe_tx_ok_pkts
;
786 regs_buff
[2] = hw_stats
->ppe_tx_drop_pkts
;
788 dsaf_read_dev(queue
, RCB_RING_TX_RING_FBDNUM_REG
);
790 regs_buff
[4] = queue
->tx_ring
.stats
.tx_pkts
;
791 regs_buff
[5] = queue
->tx_ring
.stats
.tx_bytes
;
792 regs_buff
[6] = queue
->tx_ring
.stats
.tx_err_cnt
;
793 regs_buff
[7] = queue
->tx_ring
.stats
.io_err_cnt
;
794 regs_buff
[8] = queue
->tx_ring
.stats
.sw_err_cnt
;
795 regs_buff
[9] = queue
->tx_ring
.stats
.seg_pkt_cnt
;
796 regs_buff
[10] = queue
->tx_ring
.stats
.restart_queue
;
797 regs_buff
[11] = queue
->tx_ring
.stats
.tx_busy
;
799 regs_buff
[12] = hw_stats
->rx_pkts
;
800 regs_buff
[13] = hw_stats
->ppe_rx_ok_pkts
;
801 regs_buff
[14] = hw_stats
->ppe_rx_drop_pkts
;
803 dsaf_read_dev(queue
, RCB_RING_RX_RING_FBDNUM_REG
);
805 regs_buff
[16] = queue
->rx_ring
.stats
.rx_pkts
;
806 regs_buff
[17] = queue
->rx_ring
.stats
.rx_bytes
;
807 regs_buff
[18] = queue
->rx_ring
.stats
.rx_err_cnt
;
808 regs_buff
[19] = queue
->rx_ring
.stats
.io_err_cnt
;
809 regs_buff
[20] = queue
->rx_ring
.stats
.sw_err_cnt
;
810 regs_buff
[21] = queue
->rx_ring
.stats
.seg_pkt_cnt
;
811 regs_buff
[22] = queue
->rx_ring
.stats
.reuse_pg_cnt
;
812 regs_buff
[23] = queue
->rx_ring
.stats
.err_pkt_len
;
813 regs_buff
[24] = queue
->rx_ring
.stats
.non_vld_descs
;
814 regs_buff
[25] = queue
->rx_ring
.stats
.err_bd_num
;
815 regs_buff
[26] = queue
->rx_ring
.stats
.l2_err
;
816 regs_buff
[27] = queue
->rx_ring
.stats
.l3l4_csum_err
;
820 *hns_rcb_get_ring_sset_count - rcb string set count
821 *@stringset:ethtool cmd
822 *return rcb ring string set count
824 int hns_rcb_get_ring_sset_count(int stringset
)
826 if (stringset
== ETH_SS_STATS
)
827 return HNS_RING_STATIC_REG_NUM
;
833 *hns_rcb_get_common_regs_count - rcb common regs count
836 int hns_rcb_get_common_regs_count(void)
838 return HNS_RCB_COMMON_DUMP_REG_NUM
;
842 *rcb_get_sset_count - rcb ring regs count
845 int hns_rcb_get_ring_regs_count(void)
847 return HNS_RCB_RING_DUMP_REG_NUM
;
851 *hns_rcb_get_strings - get rcb string set
852 *@stringset:string set index
853 *@data:strings name value
856 void hns_rcb_get_strings(int stringset
, u8
*data
, int index
)
858 char *buff
= (char *)data
;
860 if (stringset
!= ETH_SS_STATS
)
863 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_rcb_pkt_num", index
);
864 buff
= buff
+ ETH_GSTRING_LEN
;
865 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_ppe_tx_pkt_num", index
);
866 buff
= buff
+ ETH_GSTRING_LEN
;
867 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_ppe_drop_pkt_num", index
);
868 buff
= buff
+ ETH_GSTRING_LEN
;
869 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_fbd_num", index
);
870 buff
= buff
+ ETH_GSTRING_LEN
;
872 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_pkt_num", index
);
873 buff
= buff
+ ETH_GSTRING_LEN
;
874 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_bytes", index
);
875 buff
= buff
+ ETH_GSTRING_LEN
;
876 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_err_cnt", index
);
877 buff
= buff
+ ETH_GSTRING_LEN
;
878 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_io_err", index
);
879 buff
= buff
+ ETH_GSTRING_LEN
;
880 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_sw_err", index
);
881 buff
= buff
+ ETH_GSTRING_LEN
;
882 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_seg_pkt", index
);
883 buff
= buff
+ ETH_GSTRING_LEN
;
884 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_restart_queue", index
);
885 buff
= buff
+ ETH_GSTRING_LEN
;
886 snprintf(buff
, ETH_GSTRING_LEN
, "tx_ring%d_tx_busy", index
);
887 buff
= buff
+ ETH_GSTRING_LEN
;
889 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_rcb_pkt_num", index
);
890 buff
= buff
+ ETH_GSTRING_LEN
;
891 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_ppe_pkt_num", index
);
892 buff
= buff
+ ETH_GSTRING_LEN
;
893 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_ppe_drop_pkt_num", index
);
894 buff
= buff
+ ETH_GSTRING_LEN
;
895 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_fbd_num", index
);
896 buff
= buff
+ ETH_GSTRING_LEN
;
898 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_pkt_num", index
);
899 buff
= buff
+ ETH_GSTRING_LEN
;
900 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_bytes", index
);
901 buff
= buff
+ ETH_GSTRING_LEN
;
902 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_err_cnt", index
);
903 buff
= buff
+ ETH_GSTRING_LEN
;
904 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_io_err", index
);
905 buff
= buff
+ ETH_GSTRING_LEN
;
906 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_sw_err", index
);
907 buff
= buff
+ ETH_GSTRING_LEN
;
908 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_seg_pkt", index
);
909 buff
= buff
+ ETH_GSTRING_LEN
;
910 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_reuse_pg", index
);
911 buff
= buff
+ ETH_GSTRING_LEN
;
912 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_len_err", index
);
913 buff
= buff
+ ETH_GSTRING_LEN
;
914 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_non_vld_desc_err", index
);
915 buff
= buff
+ ETH_GSTRING_LEN
;
916 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_bd_num_err", index
);
917 buff
= buff
+ ETH_GSTRING_LEN
;
918 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_l2_err", index
);
919 buff
= buff
+ ETH_GSTRING_LEN
;
920 snprintf(buff
, ETH_GSTRING_LEN
, "rx_ring%d_l3l4csum_err", index
);
923 void hns_rcb_get_common_regs(struct rcb_common_cb
*rcb_com
, void *data
)
926 bool is_ver1
= AE_IS_VER1(rcb_com
->dsaf_dev
->dsaf_ver
);
927 bool is_dbg
= HNS_DSAF_IS_DEBUG(rcb_com
->dsaf_dev
);
932 /*rcb common registers */
933 regs
[0] = dsaf_read_dev(rcb_com
, RCB_COM_CFG_ENDIAN_REG
);
934 regs
[1] = dsaf_read_dev(rcb_com
, RCB_COM_CFG_SYS_FSH_REG
);
935 regs
[2] = dsaf_read_dev(rcb_com
, RCB_COM_CFG_INIT_FLAG_REG
);
937 regs
[3] = dsaf_read_dev(rcb_com
, RCB_COM_CFG_PKT_REG
);
938 regs
[4] = dsaf_read_dev(rcb_com
, RCB_COM_CFG_RINVLD_REG
);
939 regs
[5] = dsaf_read_dev(rcb_com
, RCB_COM_CFG_FNA_REG
);
940 regs
[6] = dsaf_read_dev(rcb_com
, RCB_COM_CFG_FA_REG
);
941 regs
[7] = dsaf_read_dev(rcb_com
, RCB_COM_CFG_PKT_TC_BP_REG
);
942 regs
[8] = dsaf_read_dev(rcb_com
, RCB_COM_CFG_PPE_TNL_CLKEN_REG
);
944 regs
[9] = dsaf_read_dev(rcb_com
, RCB_COM_INTMSK_TX_PKT_REG
);
945 regs
[10] = dsaf_read_dev(rcb_com
, RCB_COM_RINT_TX_PKT_REG
);
946 regs
[11] = dsaf_read_dev(rcb_com
, RCB_COM_INTMASK_ECC_ERR_REG
);
947 regs
[12] = dsaf_read_dev(rcb_com
, RCB_COM_INTSTS_ECC_ERR_REG
);
948 regs
[13] = dsaf_read_dev(rcb_com
, RCB_COM_EBD_SRAM_ERR_REG
);
949 regs
[14] = dsaf_read_dev(rcb_com
, RCB_COM_RXRING_ERR_REG
);
950 regs
[15] = dsaf_read_dev(rcb_com
, RCB_COM_TXRING_ERR_REG
);
951 regs
[16] = dsaf_read_dev(rcb_com
, RCB_COM_TX_FBD_ERR_REG
);
952 regs
[17] = dsaf_read_dev(rcb_com
, RCB_SRAM_ECC_CHK_EN_REG
);
953 regs
[18] = dsaf_read_dev(rcb_com
, RCB_SRAM_ECC_CHK0_REG
);
954 regs
[19] = dsaf_read_dev(rcb_com
, RCB_SRAM_ECC_CHK1_REG
);
955 regs
[20] = dsaf_read_dev(rcb_com
, RCB_SRAM_ECC_CHK2_REG
);
956 regs
[21] = dsaf_read_dev(rcb_com
, RCB_SRAM_ECC_CHK3_REG
);
957 regs
[22] = dsaf_read_dev(rcb_com
, RCB_SRAM_ECC_CHK4_REG
);
958 regs
[23] = dsaf_read_dev(rcb_com
, RCB_SRAM_ECC_CHK5_REG
);
959 regs
[24] = dsaf_read_dev(rcb_com
, RCB_ECC_ERR_ADDR0_REG
);
960 regs
[25] = dsaf_read_dev(rcb_com
, RCB_ECC_ERR_ADDR3_REG
);
961 regs
[26] = dsaf_read_dev(rcb_com
, RCB_ECC_ERR_ADDR4_REG
);
962 regs
[27] = dsaf_read_dev(rcb_com
, RCB_ECC_ERR_ADDR5_REG
);
964 regs
[28] = dsaf_read_dev(rcb_com
, RCB_COM_SF_CFG_INTMASK_RING
);
965 regs
[29] = dsaf_read_dev(rcb_com
, RCB_COM_SF_CFG_RING_STS
);
966 regs
[30] = dsaf_read_dev(rcb_com
, RCB_COM_SF_CFG_RING
);
967 regs
[31] = dsaf_read_dev(rcb_com
, RCB_COM_SF_CFG_INTMASK_BD
);
968 regs
[32] = dsaf_read_dev(rcb_com
, RCB_COM_SF_CFG_BD_RINT_STS
);
969 regs
[33] = dsaf_read_dev(rcb_com
, RCB_COM_RCB_RD_BD_BUSY
);
970 regs
[34] = dsaf_read_dev(rcb_com
, RCB_COM_RCB_FBD_CRT_EN
);
971 regs
[35] = dsaf_read_dev(rcb_com
, RCB_COM_AXI_WR_ERR_INTMASK
);
972 regs
[36] = dsaf_read_dev(rcb_com
, RCB_COM_AXI_ERR_STS
);
973 regs
[37] = dsaf_read_dev(rcb_com
, RCB_COM_CHK_TX_FBD_NUM_REG
);
975 /* rcb common entry registers */
976 for (i
= 0; i
< 16; i
++) { /* total 16 model registers */
978 = dsaf_read_dev(rcb_com
, RCB_CFG_BD_NUM_REG
+ 4 * i
);
980 = dsaf_read_dev(rcb_com
, RCB_CFG_PKTLINE_REG
+ 4 * i
);
983 reg_tmp
= is_ver1
? RCB_CFG_OVERTIME_REG
: RCB_PORT_CFG_OVERTIME_REG
;
984 reg_num_tmp
= (is_ver1
|| is_dbg
) ? 1 : 6;
985 for (i
= 0; i
< reg_num_tmp
; i
++)
986 regs
[70 + i
] = dsaf_read_dev(rcb_com
, reg_tmp
);
988 regs
[76] = dsaf_read_dev(rcb_com
, RCB_CFG_PKTLINE_INT_NUM_REG
);
989 regs
[77] = dsaf_read_dev(rcb_com
, RCB_CFG_OVERTIME_INT_NUM_REG
);
991 /* mark end of rcb common regs */
992 for (i
= 78; i
< 80; i
++)
993 regs
[i
] = 0xcccccccc;
996 void hns_rcb_get_ring_regs(struct hnae_queue
*queue
, void *data
)
999 struct ring_pair_cb
*ring_pair
1000 = container_of(queue
, struct ring_pair_cb
, q
);
1003 /*rcb ring registers */
1004 regs
[0] = dsaf_read_dev(queue
, RCB_RING_RX_RING_BASEADDR_L_REG
);
1005 regs
[1] = dsaf_read_dev(queue
, RCB_RING_RX_RING_BASEADDR_H_REG
);
1006 regs
[2] = dsaf_read_dev(queue
, RCB_RING_RX_RING_BD_NUM_REG
);
1007 regs
[3] = dsaf_read_dev(queue
, RCB_RING_RX_RING_BD_LEN_REG
);
1008 regs
[4] = dsaf_read_dev(queue
, RCB_RING_RX_RING_PKTLINE_REG
);
1009 regs
[5] = dsaf_read_dev(queue
, RCB_RING_RX_RING_TAIL_REG
);
1010 regs
[6] = dsaf_read_dev(queue
, RCB_RING_RX_RING_HEAD_REG
);
1011 regs
[7] = dsaf_read_dev(queue
, RCB_RING_RX_RING_FBDNUM_REG
);
1012 regs
[8] = dsaf_read_dev(queue
, RCB_RING_RX_RING_PKTNUM_RECORD_REG
);
1014 regs
[9] = dsaf_read_dev(queue
, RCB_RING_TX_RING_BASEADDR_L_REG
);
1015 regs
[10] = dsaf_read_dev(queue
, RCB_RING_TX_RING_BASEADDR_H_REG
);
1016 regs
[11] = dsaf_read_dev(queue
, RCB_RING_TX_RING_BD_NUM_REG
);
1017 regs
[12] = dsaf_read_dev(queue
, RCB_RING_TX_RING_BD_LEN_REG
);
1018 regs
[13] = dsaf_read_dev(queue
, RCB_RING_TX_RING_PKTLINE_REG
);
1019 regs
[15] = dsaf_read_dev(queue
, RCB_RING_TX_RING_TAIL_REG
);
1020 regs
[16] = dsaf_read_dev(queue
, RCB_RING_TX_RING_HEAD_REG
);
1021 regs
[17] = dsaf_read_dev(queue
, RCB_RING_TX_RING_FBDNUM_REG
);
1022 regs
[18] = dsaf_read_dev(queue
, RCB_RING_TX_RING_OFFSET_REG
);
1023 regs
[19] = dsaf_read_dev(queue
, RCB_RING_TX_RING_PKTNUM_RECORD_REG
);
1025 regs
[20] = dsaf_read_dev(queue
, RCB_RING_PREFETCH_EN_REG
);
1026 regs
[21] = dsaf_read_dev(queue
, RCB_RING_CFG_VF_NUM_REG
);
1027 regs
[22] = dsaf_read_dev(queue
, RCB_RING_ASID_REG
);
1028 regs
[23] = dsaf_read_dev(queue
, RCB_RING_RX_VM_REG
);
1029 regs
[24] = dsaf_read_dev(queue
, RCB_RING_T0_BE_RST
);
1030 regs
[25] = dsaf_read_dev(queue
, RCB_RING_COULD_BE_RST
);
1031 regs
[26] = dsaf_read_dev(queue
, RCB_RING_WRR_WEIGHT_REG
);
1033 regs
[27] = dsaf_read_dev(queue
, RCB_RING_INTMSK_RXWL_REG
);
1034 regs
[28] = dsaf_read_dev(queue
, RCB_RING_INTSTS_RX_RING_REG
);
1035 regs
[29] = dsaf_read_dev(queue
, RCB_RING_INTMSK_TXWL_REG
);
1036 regs
[30] = dsaf_read_dev(queue
, RCB_RING_INTSTS_TX_RING_REG
);
1037 regs
[31] = dsaf_read_dev(queue
, RCB_RING_INTMSK_RX_OVERTIME_REG
);
1038 regs
[32] = dsaf_read_dev(queue
, RCB_RING_INTSTS_RX_OVERTIME_REG
);
1039 regs
[33] = dsaf_read_dev(queue
, RCB_RING_INTMSK_TX_OVERTIME_REG
);
1040 regs
[34] = dsaf_read_dev(queue
, RCB_RING_INTSTS_TX_OVERTIME_REG
);
1042 /* mark end of ring regs */
1043 for (i
= 35; i
< 40; i
++)
1044 regs
[i
] = 0xcccccc00 + ring_pair
->index
;