root/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c

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DEFINITIONS

This source file includes following definitions.
  1. hns_rcb_wait_fbd_clean
  2. hns_rcb_wait_tx_ring_clean
  3. hns_rcb_reset_ring_hw
  4. hns_rcb_int_ctrl_hw
  5. hns_rcb_int_clr_hw
  6. hns_rcbv2_int_ctrl_hw
  7. hns_rcbv2_int_clr_hw
  8. hns_rcb_ring_enable_hw
  9. hns_rcb_start
  10. hns_rcb_common_init_commit_hw
  11. hns_rcb_set_tx_ring_bs
  12. hns_rcb_set_rx_ring_bs
  13. hns_rcb_ring_init
  14. hns_rcb_init_hw
  15. hns_rcb_set_port_desc_cnt
  16. hns_rcb_set_port_timeout
  17. hns_rcb_common_get_port_num
  18. hns_rcb_comm_exc_irq_en
  19. hns_rcb_common_init_hw
  20. hns_rcb_buf_size2type
  21. hns_rcb_ring_get_cfg
  22. hns_rcb_ring_pair_get_cfg
  23. hns_rcb_get_port_in_comm
  24. hns_rcb_get_base_irq_idx
  25. hns_rcb_get_cfg
  26. hns_rcb_get_rx_coalesced_frames
  27. hns_rcb_get_tx_coalesced_frames
  28. hns_rcb_get_coalesce_usecs
  29. hns_rcb_set_coalesce_usecs
  30. hns_rcb_set_tx_coalesced_frames
  31. hns_rcb_set_rx_coalesced_frames
  32. hns_rcb_get_queue_mode
  33. hns_rcb_get_ring_num
  34. hns_rcb_common_get_vaddr
  35. hns_rcb_common_get_paddr
  36. hns_rcb_common_get_cfg
  37. hns_rcb_common_free_cfg
  38. hns_rcb_update_stats
  39. hns_rcb_get_stats
  40. hns_rcb_get_ring_sset_count
  41. hns_rcb_get_common_regs_count
  42. hns_rcb_get_ring_regs_count
  43. hns_rcb_get_strings
  44. hns_rcb_get_common_regs
  45. hns_rcb_get_ring_regs

   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/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 /* Because default mtu is 1500, rcb buffer size is set to 2048 enough */
  32 #define RCB_DEFAULT_BUFFER_SIZE 2048
  33 
  34 /**
  35  *hns_rcb_wait_fbd_clean - clean fbd
  36  *@qs: ring struct pointer array
  37  *@qnum: num of array
  38  *@flag: tx or rx flag
  39  */
  40 void 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 
  65 int 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  *hns_rcb_reset_ring_hw - ring reset
  90  *@q: ring struct pointer
  91  */
  92 void 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  *hns_rcb_int_ctrl_hw - rcb irq enable control
 138  *@q: hnae queue struct pointer
 139  *@flag:ring flag tx or rx
 140  *@mask:mask
 141  */
 142 void 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 
 159 void 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 
 172 void 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 
 183 void 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  *hns_rcb_ring_enable_hw - enable ring
 194  *@ring: rcb ring
 195  */
 196 void hns_rcb_ring_enable_hw(struct hnae_queue *q, u32 val)
 197 {
 198         dsaf_write_dev(q, RCB_RING_PREFETCH_EN_REG, !!val);
 199 }
 200 
 201 void hns_rcb_start(struct hnae_queue *q, u32 val)
 202 {
 203         hns_rcb_ring_enable_hw(q, val);
 204 }
 205 
 206 /**
 207  *hns_rcb_common_init_commit_hw - make rcb common init completed
 208  *@rcb_common: rcb common device
 209  */
 210 void hns_rcb_common_init_commit_hw(struct rcb_common_cb *rcb_common)
 211 {
 212         wmb();  /* Sync point before breakpoint */
 213         dsaf_write_dev(rcb_common, RCB_COM_CFG_SYS_FSH_REG, 1);
 214         wmb();  /* Sync point after breakpoint */
 215 }
 216 
 217 /* hns_rcb_set_tx_ring_bs - init rcb ring buf size regester
 218  *@q: hnae_queue
 219  *@buf_size: buffer size set to hw
 220  */
 221 void hns_rcb_set_tx_ring_bs(struct hnae_queue *q, u32 buf_size)
 222 {
 223         u32 bd_size_type = hns_rcb_buf_size2type(buf_size);
 224 
 225         dsaf_write_dev(q, RCB_RING_TX_RING_BD_LEN_REG,
 226                        bd_size_type);
 227 }
 228 
 229 /* hns_rcb_set_rx_ring_bs - init rcb ring buf size regester
 230  *@q: hnae_queue
 231  *@buf_size: buffer size set to hw
 232  */
 233 void hns_rcb_set_rx_ring_bs(struct hnae_queue *q, u32 buf_size)
 234 {
 235         u32 bd_size_type = hns_rcb_buf_size2type(buf_size);
 236 
 237         dsaf_write_dev(q, RCB_RING_RX_RING_BD_LEN_REG,
 238                        bd_size_type);
 239 }
 240 
 241 /**
 242  *hns_rcb_ring_init - init rcb ring
 243  *@ring_pair: ring pair control block
 244  *@ring_type: ring type, RX_RING or TX_RING
 245  */
 246 static void hns_rcb_ring_init(struct ring_pair_cb *ring_pair, int ring_type)
 247 {
 248         struct hnae_queue *q = &ring_pair->q;
 249         struct hnae_ring *ring =
 250                 (ring_type == RX_RING) ? &q->rx_ring : &q->tx_ring;
 251         dma_addr_t dma = ring->desc_dma_addr;
 252 
 253         if (ring_type == RX_RING) {
 254                 dsaf_write_dev(q, RCB_RING_RX_RING_BASEADDR_L_REG,
 255                                (u32)dma);
 256                 dsaf_write_dev(q, RCB_RING_RX_RING_BASEADDR_H_REG,
 257                                (u32)((dma >> 31) >> 1));
 258 
 259                 hns_rcb_set_rx_ring_bs(q, ring->buf_size);
 260 
 261                 dsaf_write_dev(q, RCB_RING_RX_RING_BD_NUM_REG,
 262                                ring_pair->port_id_in_comm);
 263                 dsaf_write_dev(q, RCB_RING_RX_RING_PKTLINE_REG,
 264                                ring_pair->port_id_in_comm);
 265         } else {
 266                 dsaf_write_dev(q, RCB_RING_TX_RING_BASEADDR_L_REG,
 267                                (u32)dma);
 268                 dsaf_write_dev(q, RCB_RING_TX_RING_BASEADDR_H_REG,
 269                                (u32)((dma >> 31) >> 1));
 270 
 271                 hns_rcb_set_tx_ring_bs(q, ring->buf_size);
 272 
 273                 dsaf_write_dev(q, RCB_RING_TX_RING_BD_NUM_REG,
 274                                ring_pair->port_id_in_comm);
 275                 dsaf_write_dev(q, RCB_RING_TX_RING_PKTLINE_REG,
 276                         ring_pair->port_id_in_comm + HNS_RCB_TX_PKTLINE_OFFSET);
 277         }
 278 }
 279 
 280 /**
 281  *hns_rcb_init_hw - init rcb hardware
 282  *@ring: rcb ring
 283  */
 284 void hns_rcb_init_hw(struct ring_pair_cb *ring)
 285 {
 286         hns_rcb_ring_init(ring, RX_RING);
 287         hns_rcb_ring_init(ring, TX_RING);
 288 }
 289 
 290 /**
 291  *hns_rcb_set_port_desc_cnt - set rcb port description num
 292  *@rcb_common: rcb_common device
 293  *@port_idx:port index
 294  *@desc_cnt:BD num
 295  */
 296 static void hns_rcb_set_port_desc_cnt(struct rcb_common_cb *rcb_common,
 297                                       u32 port_idx, u32 desc_cnt)
 298 {
 299         dsaf_write_dev(rcb_common, RCB_CFG_BD_NUM_REG + port_idx * 4,
 300                        desc_cnt);
 301 }
 302 
 303 static void hns_rcb_set_port_timeout(
 304         struct rcb_common_cb *rcb_common, u32 port_idx, u32 timeout)
 305 {
 306         if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
 307                 dsaf_write_dev(rcb_common, RCB_CFG_OVERTIME_REG,
 308                                timeout * HNS_RCB_CLK_FREQ_MHZ);
 309         } else if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev)) {
 310                 if (timeout > HNS_RCB_DEF_GAP_TIME_USECS)
 311                         dsaf_write_dev(rcb_common,
 312                                        RCB_PORT_INT_GAPTIME_REG + port_idx * 4,
 313                                        HNS_RCB_DEF_GAP_TIME_USECS);
 314                 else
 315                         dsaf_write_dev(rcb_common,
 316                                        RCB_PORT_INT_GAPTIME_REG + port_idx * 4,
 317                                        timeout);
 318 
 319                 dsaf_write_dev(rcb_common,
 320                                RCB_PORT_CFG_OVERTIME_REG + port_idx * 4,
 321                                timeout);
 322         } else {
 323                 dsaf_write_dev(rcb_common,
 324                                RCB_PORT_CFG_OVERTIME_REG + port_idx * 4,
 325                                timeout);
 326         }
 327 }
 328 
 329 static int hns_rcb_common_get_port_num(struct rcb_common_cb *rcb_common)
 330 {
 331         if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev))
 332                 return HNS_RCB_SERVICE_NW_ENGINE_NUM;
 333         else
 334                 return HNS_RCB_DEBUG_NW_ENGINE_NUM;
 335 }
 336 
 337 /*clr rcb comm exception irq**/
 338 static void hns_rcb_comm_exc_irq_en(
 339                         struct rcb_common_cb *rcb_common, int en)
 340 {
 341         u32 clr_vlue = 0xfffffffful;
 342         u32 msk_vlue = en ? 0 : 0xfffffffful;
 343 
 344         /* clr int*/
 345         dsaf_write_dev(rcb_common, RCB_COM_INTSTS_ECC_ERR_REG, clr_vlue);
 346 
 347         dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_RING_STS, clr_vlue);
 348 
 349         dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_BD_RINT_STS, clr_vlue);
 350 
 351         dsaf_write_dev(rcb_common, RCB_COM_RINT_TX_PKT_REG, clr_vlue);
 352         dsaf_write_dev(rcb_common, RCB_COM_AXI_ERR_STS, clr_vlue);
 353 
 354         /*en msk*/
 355         dsaf_write_dev(rcb_common, RCB_COM_INTMASK_ECC_ERR_REG, msk_vlue);
 356 
 357         dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_INTMASK_RING, msk_vlue);
 358 
 359         /*for tx bd neednot cacheline, so msk sf_txring_fbd_intmask (bit 1)**/
 360         dsaf_write_dev(rcb_common, RCB_COM_SF_CFG_INTMASK_BD, msk_vlue | 2);
 361 
 362         dsaf_write_dev(rcb_common, RCB_COM_INTMSK_TX_PKT_REG, msk_vlue);
 363         dsaf_write_dev(rcb_common, RCB_COM_AXI_WR_ERR_INTMASK, msk_vlue);
 364 }
 365 
 366 /**
 367  *hns_rcb_common_init_hw - init rcb common hardware
 368  *@rcb_common: rcb_common device
 369  *retuen 0 - success , negative --fail
 370  */
 371 int hns_rcb_common_init_hw(struct rcb_common_cb *rcb_common)
 372 {
 373         u32 reg_val;
 374         int i;
 375         int port_num = hns_rcb_common_get_port_num(rcb_common);
 376 
 377         hns_rcb_comm_exc_irq_en(rcb_common, 0);
 378 
 379         reg_val = dsaf_read_dev(rcb_common, RCB_COM_CFG_INIT_FLAG_REG);
 380         if (0x1 != (reg_val & 0x1)) {
 381                 dev_err(rcb_common->dsaf_dev->dev,
 382                         "RCB_COM_CFG_INIT_FLAG_REG reg = 0x%x\n", reg_val);
 383                 return -EBUSY;
 384         }
 385 
 386         for (i = 0; i < port_num; i++) {
 387                 hns_rcb_set_port_desc_cnt(rcb_common, i, rcb_common->desc_num);
 388                 hns_rcb_set_rx_coalesced_frames(
 389                         rcb_common, i, HNS_RCB_DEF_RX_COALESCED_FRAMES);
 390                 if (!AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver) &&
 391                     !HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev))
 392                         hns_rcb_set_tx_coalesced_frames(
 393                                 rcb_common, i, HNS_RCB_DEF_TX_COALESCED_FRAMES);
 394                 hns_rcb_set_port_timeout(
 395                         rcb_common, i, HNS_RCB_DEF_COALESCED_USECS);
 396         }
 397 
 398         dsaf_write_dev(rcb_common, RCB_COM_CFG_ENDIAN_REG,
 399                        HNS_RCB_COMMON_ENDIAN);
 400 
 401         if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
 402                 dsaf_write_dev(rcb_common, RCB_COM_CFG_FNA_REG, 0x0);
 403                 dsaf_write_dev(rcb_common, RCB_COM_CFG_FA_REG, 0x1);
 404         } else {
 405                 dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_USER_REG,
 406                                  RCB_COM_CFG_FNA_B, false);
 407                 dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_USER_REG,
 408                                  RCB_COM_CFG_FA_B, true);
 409                 dsaf_set_dev_bit(rcb_common, RCBV2_COM_CFG_TSO_MODE_REG,
 410                                  RCB_COM_TSO_MODE_B, HNS_TSO_MODE_8BD_32K);
 411         }
 412 
 413         return 0;
 414 }
 415 
 416 int hns_rcb_buf_size2type(u32 buf_size)
 417 {
 418         int bd_size_type;
 419 
 420         switch (buf_size) {
 421         case 512:
 422                 bd_size_type = HNS_BD_SIZE_512_TYPE;
 423                 break;
 424         case 1024:
 425                 bd_size_type = HNS_BD_SIZE_1024_TYPE;
 426                 break;
 427         case 2048:
 428                 bd_size_type = HNS_BD_SIZE_2048_TYPE;
 429                 break;
 430         case 4096:
 431                 bd_size_type = HNS_BD_SIZE_4096_TYPE;
 432                 break;
 433         default:
 434                 bd_size_type = -EINVAL;
 435         }
 436 
 437         return bd_size_type;
 438 }
 439 
 440 static void hns_rcb_ring_get_cfg(struct hnae_queue *q, int ring_type)
 441 {
 442         struct hnae_ring *ring;
 443         struct rcb_common_cb *rcb_common;
 444         struct ring_pair_cb *ring_pair_cb;
 445         u16 desc_num, mdnum_ppkt;
 446         bool irq_idx, is_ver1;
 447 
 448         ring_pair_cb = container_of(q, struct ring_pair_cb, q);
 449         is_ver1 = AE_IS_VER1(ring_pair_cb->rcb_common->dsaf_dev->dsaf_ver);
 450         if (ring_type == RX_RING) {
 451                 ring = &q->rx_ring;
 452                 ring->io_base = ring_pair_cb->q.io_base;
 453                 irq_idx = HNS_RCB_IRQ_IDX_RX;
 454                 mdnum_ppkt = HNS_RCB_RING_MAX_BD_PER_PKT;
 455         } else {
 456                 ring = &q->tx_ring;
 457                 ring->io_base = ring_pair_cb->q.io_base +
 458                         HNS_RCB_TX_REG_OFFSET;
 459                 irq_idx = HNS_RCB_IRQ_IDX_TX;
 460                 mdnum_ppkt = is_ver1 ? HNS_RCB_RING_MAX_TXBD_PER_PKT :
 461                                  HNS_RCBV2_RING_MAX_TXBD_PER_PKT;
 462         }
 463 
 464         rcb_common = ring_pair_cb->rcb_common;
 465         desc_num = rcb_common->dsaf_dev->desc_num;
 466 
 467         ring->desc = NULL;
 468         ring->desc_cb = NULL;
 469 
 470         ring->irq = ring_pair_cb->virq[irq_idx];
 471         ring->desc_dma_addr = 0;
 472 
 473         ring->buf_size = RCB_DEFAULT_BUFFER_SIZE;
 474         ring->desc_num = desc_num;
 475         ring->max_desc_num_per_pkt = mdnum_ppkt;
 476         ring->max_raw_data_sz_per_desc = HNS_RCB_MAX_PKT_SIZE;
 477         ring->max_pkt_size = HNS_RCB_MAX_PKT_SIZE;
 478         ring->next_to_use = 0;
 479         ring->next_to_clean = 0;
 480 }
 481 
 482 static void hns_rcb_ring_pair_get_cfg(struct ring_pair_cb *ring_pair_cb)
 483 {
 484         ring_pair_cb->q.handle = NULL;
 485 
 486         hns_rcb_ring_get_cfg(&ring_pair_cb->q, RX_RING);
 487         hns_rcb_ring_get_cfg(&ring_pair_cb->q, TX_RING);
 488 }
 489 
 490 static int hns_rcb_get_port_in_comm(
 491         struct rcb_common_cb *rcb_common, int ring_idx)
 492 {
 493         return ring_idx / (rcb_common->max_q_per_vf * rcb_common->max_vfn);
 494 }
 495 
 496 #define SERVICE_RING_IRQ_IDX(v1) \
 497         ((v1) ? HNS_SERVICE_RING_IRQ_IDX : HNSV2_SERVICE_RING_IRQ_IDX)
 498 static int hns_rcb_get_base_irq_idx(struct rcb_common_cb *rcb_common)
 499 {
 500         bool is_ver1 = AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver);
 501 
 502         if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev))
 503                 return SERVICE_RING_IRQ_IDX(is_ver1);
 504         else
 505                 return  HNS_DEBUG_RING_IRQ_IDX;
 506 }
 507 
 508 #define RCB_COMM_BASE_TO_RING_BASE(base, ringid)\
 509         ((base) + 0x10000 + HNS_RCB_REG_OFFSET * (ringid))
 510 /**
 511  *hns_rcb_get_cfg - get rcb config
 512  *@rcb_common: rcb common device
 513  */
 514 int hns_rcb_get_cfg(struct rcb_common_cb *rcb_common)
 515 {
 516         struct ring_pair_cb *ring_pair_cb;
 517         u32 i;
 518         u32 ring_num = rcb_common->ring_num;
 519         int base_irq_idx = hns_rcb_get_base_irq_idx(rcb_common);
 520         struct platform_device *pdev =
 521                 to_platform_device(rcb_common->dsaf_dev->dev);
 522         bool is_ver1 = AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver);
 523 
 524         for (i = 0; i < ring_num; i++) {
 525                 ring_pair_cb = &rcb_common->ring_pair_cb[i];
 526                 ring_pair_cb->rcb_common = rcb_common;
 527                 ring_pair_cb->dev = rcb_common->dsaf_dev->dev;
 528                 ring_pair_cb->index = i;
 529                 ring_pair_cb->q.io_base =
 530                         RCB_COMM_BASE_TO_RING_BASE(rcb_common->io_base, i);
 531                 ring_pair_cb->port_id_in_comm =
 532                         hns_rcb_get_port_in_comm(rcb_common, i);
 533                 ring_pair_cb->virq[HNS_RCB_IRQ_IDX_TX] =
 534                 is_ver1 ? platform_get_irq(pdev, base_irq_idx + i * 2) :
 535                           platform_get_irq(pdev, base_irq_idx + i * 3 + 1);
 536                 ring_pair_cb->virq[HNS_RCB_IRQ_IDX_RX] =
 537                 is_ver1 ? platform_get_irq(pdev, base_irq_idx + i * 2 + 1) :
 538                           platform_get_irq(pdev, base_irq_idx + i * 3);
 539                 if ((ring_pair_cb->virq[HNS_RCB_IRQ_IDX_TX] == -EPROBE_DEFER) ||
 540                     (ring_pair_cb->virq[HNS_RCB_IRQ_IDX_RX] == -EPROBE_DEFER))
 541                         return -EPROBE_DEFER;
 542 
 543                 ring_pair_cb->q.phy_base =
 544                         RCB_COMM_BASE_TO_RING_BASE(rcb_common->phy_base, i);
 545                 hns_rcb_ring_pair_get_cfg(ring_pair_cb);
 546         }
 547 
 548         return 0;
 549 }
 550 
 551 /**
 552  *hns_rcb_get_rx_coalesced_frames - get rcb port rx coalesced frames
 553  *@rcb_common: rcb_common device
 554  *@port_idx:port id in comm
 555  *
 556  *Returns: coalesced_frames
 557  */
 558 u32 hns_rcb_get_rx_coalesced_frames(
 559         struct rcb_common_cb *rcb_common, u32 port_idx)
 560 {
 561         return dsaf_read_dev(rcb_common, RCB_CFG_PKTLINE_REG + port_idx * 4);
 562 }
 563 
 564 /**
 565  *hns_rcb_get_tx_coalesced_frames - get rcb port tx coalesced frames
 566  *@rcb_common: rcb_common device
 567  *@port_idx:port id in comm
 568  *
 569  *Returns: coalesced_frames
 570  */
 571 u32 hns_rcb_get_tx_coalesced_frames(
 572         struct rcb_common_cb *rcb_common, u32 port_idx)
 573 {
 574         u64 reg;
 575 
 576         reg = RCB_CFG_PKTLINE_REG + (port_idx + HNS_RCB_TX_PKTLINE_OFFSET) * 4;
 577         return dsaf_read_dev(rcb_common, reg);
 578 }
 579 
 580 /**
 581  *hns_rcb_get_coalesce_usecs - get rcb port coalesced time_out
 582  *@rcb_common: rcb_common device
 583  *@port_idx:port id in comm
 584  *
 585  *Returns: time_out
 586  */
 587 u32 hns_rcb_get_coalesce_usecs(
 588         struct rcb_common_cb *rcb_common, u32 port_idx)
 589 {
 590         if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver))
 591                 return dsaf_read_dev(rcb_common, RCB_CFG_OVERTIME_REG) /
 592                        HNS_RCB_CLK_FREQ_MHZ;
 593         else
 594                 return dsaf_read_dev(rcb_common,
 595                                      RCB_PORT_CFG_OVERTIME_REG + port_idx * 4);
 596 }
 597 
 598 /**
 599  *hns_rcb_set_coalesce_usecs - set rcb port coalesced time_out
 600  *@rcb_common: rcb_common device
 601  *@port_idx:port id in comm
 602  *@timeout:tx/rx time for coalesced time_out
 603  *
 604  * Returns:
 605  * Zero for success, or an error code in case of failure
 606  */
 607 int hns_rcb_set_coalesce_usecs(
 608         struct rcb_common_cb *rcb_common, u32 port_idx, u32 timeout)
 609 {
 610         u32 old_timeout = hns_rcb_get_coalesce_usecs(rcb_common, port_idx);
 611 
 612         if (timeout == old_timeout)
 613                 return 0;
 614 
 615         if (AE_IS_VER1(rcb_common->dsaf_dev->dsaf_ver)) {
 616                 if (!HNS_DSAF_IS_DEBUG(rcb_common->dsaf_dev)) {
 617                         dev_err(rcb_common->dsaf_dev->dev,
 618                                 "error: not support coalesce_usecs setting!\n");
 619                         return -EINVAL;
 620                 }
 621         }
 622         if (timeout > HNS_RCB_MAX_COALESCED_USECS || timeout == 0) {
 623                 dev_err(rcb_common->dsaf_dev->dev,
 624                         "error: coalesce_usecs setting supports 1~1023us\n");
 625                 return -EINVAL;
 626         }
 627         hns_rcb_set_port_timeout(rcb_common, port_idx, timeout);
 628         return 0;
 629 }
 630 
 631 /**
 632  *hns_rcb_set_tx_coalesced_frames - set rcb coalesced frames
 633  *@rcb_common: rcb_common device
 634  *@port_idx:port id in comm
 635  *@coalesced_frames:tx/rx BD num for coalesced frames
 636  *
 637  * Returns:
 638  * Zero for success, or an error code in case of failure
 639  */
 640 int hns_rcb_set_tx_coalesced_frames(
 641         struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames)
 642 {
 643         u32 old_waterline =
 644                 hns_rcb_get_tx_coalesced_frames(rcb_common, port_idx);
 645         u64 reg;
 646 
 647         if (coalesced_frames == old_waterline)
 648                 return 0;
 649 
 650         if (coalesced_frames != 1) {
 651                 dev_err(rcb_common->dsaf_dev->dev,
 652                         "error: not support tx coalesce_frames setting!\n");
 653                 return -EINVAL;
 654         }
 655 
 656         reg = RCB_CFG_PKTLINE_REG + (port_idx + HNS_RCB_TX_PKTLINE_OFFSET) * 4;
 657         dsaf_write_dev(rcb_common, reg, coalesced_frames);
 658         return 0;
 659 }
 660 
 661 /**
 662  *hns_rcb_set_rx_coalesced_frames - set rcb rx coalesced frames
 663  *@rcb_common: rcb_common device
 664  *@port_idx:port id in comm
 665  *@coalesced_frames:tx/rx BD num for coalesced frames
 666  *
 667  * Returns:
 668  * Zero for success, or an error code in case of failure
 669  */
 670 int hns_rcb_set_rx_coalesced_frames(
 671         struct rcb_common_cb *rcb_common, u32 port_idx, u32 coalesced_frames)
 672 {
 673         u32 old_waterline =
 674                 hns_rcb_get_rx_coalesced_frames(rcb_common, port_idx);
 675 
 676         if (coalesced_frames == old_waterline)
 677                 return 0;
 678 
 679         if (coalesced_frames >= rcb_common->desc_num ||
 680             coalesced_frames > HNS_RCB_MAX_COALESCED_FRAMES ||
 681             coalesced_frames < HNS_RCB_MIN_COALESCED_FRAMES) {
 682                 dev_err(rcb_common->dsaf_dev->dev,
 683                         "error: not support coalesce_frames setting!\n");
 684                 return -EINVAL;
 685         }
 686 
 687         dsaf_write_dev(rcb_common, RCB_CFG_PKTLINE_REG + port_idx * 4,
 688                        coalesced_frames);
 689         return 0;
 690 }
 691 
 692 /**
 693  *hns_rcb_get_queue_mode - get max VM number and max ring number per VM
 694  *                                              accordding to dsaf mode
 695  *@dsaf_mode: dsaf mode
 696  *@max_vfn : max vfn number
 697  *@max_q_per_vf:max ring number per vm
 698  */
 699 void hns_rcb_get_queue_mode(enum dsaf_mode dsaf_mode, u16 *max_vfn,
 700                             u16 *max_q_per_vf)
 701 {
 702         switch (dsaf_mode) {
 703         case DSAF_MODE_DISABLE_6PORT_0VM:
 704                 *max_vfn = 1;
 705                 *max_q_per_vf = 16;
 706                 break;
 707         case DSAF_MODE_DISABLE_FIX:
 708         case DSAF_MODE_DISABLE_SP:
 709                 *max_vfn = 1;
 710                 *max_q_per_vf = 1;
 711                 break;
 712         case DSAF_MODE_DISABLE_2PORT_64VM:
 713                 *max_vfn = 64;
 714                 *max_q_per_vf = 1;
 715                 break;
 716         case DSAF_MODE_DISABLE_6PORT_16VM:
 717                 *max_vfn = 16;
 718                 *max_q_per_vf = 1;
 719                 break;
 720         default:
 721                 *max_vfn = 1;
 722                 *max_q_per_vf = 16;
 723                 break;
 724         }
 725 }
 726 
 727 static int hns_rcb_get_ring_num(struct dsaf_device *dsaf_dev)
 728 {
 729         switch (dsaf_dev->dsaf_mode) {
 730         case DSAF_MODE_ENABLE_FIX:
 731         case DSAF_MODE_DISABLE_SP:
 732                 return 1;
 733 
 734         case DSAF_MODE_DISABLE_FIX:
 735                 return 6;
 736 
 737         case DSAF_MODE_ENABLE_0VM:
 738                 return 32;
 739 
 740         case DSAF_MODE_DISABLE_6PORT_0VM:
 741         case DSAF_MODE_ENABLE_16VM:
 742         case DSAF_MODE_DISABLE_6PORT_2VM:
 743         case DSAF_MODE_DISABLE_6PORT_16VM:
 744         case DSAF_MODE_DISABLE_6PORT_4VM:
 745         case DSAF_MODE_ENABLE_8VM:
 746                 return 96;
 747 
 748         case DSAF_MODE_DISABLE_2PORT_16VM:
 749         case DSAF_MODE_DISABLE_2PORT_8VM:
 750         case DSAF_MODE_ENABLE_32VM:
 751         case DSAF_MODE_DISABLE_2PORT_64VM:
 752         case DSAF_MODE_ENABLE_128VM:
 753                 return 128;
 754 
 755         default:
 756                 dev_warn(dsaf_dev->dev,
 757                          "get ring num fail,use default!dsaf_mode=%d\n",
 758                          dsaf_dev->dsaf_mode);
 759                 return 128;
 760         }
 761 }
 762 
 763 static u8 __iomem *hns_rcb_common_get_vaddr(struct rcb_common_cb *rcb_common)
 764 {
 765         struct dsaf_device *dsaf_dev = rcb_common->dsaf_dev;
 766 
 767         return dsaf_dev->ppe_base + RCB_COMMON_REG_OFFSET;
 768 }
 769 
 770 static phys_addr_t hns_rcb_common_get_paddr(struct rcb_common_cb *rcb_common)
 771 {
 772         struct dsaf_device *dsaf_dev = rcb_common->dsaf_dev;
 773 
 774         return dsaf_dev->ppe_paddr + RCB_COMMON_REG_OFFSET;
 775 }
 776 
 777 int hns_rcb_common_get_cfg(struct dsaf_device *dsaf_dev,
 778                            int comm_index)
 779 {
 780         struct rcb_common_cb *rcb_common;
 781         enum dsaf_mode dsaf_mode = dsaf_dev->dsaf_mode;
 782         u16 max_vfn;
 783         u16 max_q_per_vf;
 784         int ring_num = hns_rcb_get_ring_num(dsaf_dev);
 785 
 786         rcb_common =
 787                 devm_kzalloc(dsaf_dev->dev,
 788                              struct_size(rcb_common, ring_pair_cb, ring_num),
 789                              GFP_KERNEL);
 790         if (!rcb_common) {
 791                 dev_err(dsaf_dev->dev, "rcb common devm_kzalloc fail!\n");
 792                 return -ENOMEM;
 793         }
 794         rcb_common->comm_index = comm_index;
 795         rcb_common->ring_num = ring_num;
 796         rcb_common->dsaf_dev = dsaf_dev;
 797 
 798         rcb_common->desc_num = dsaf_dev->desc_num;
 799 
 800         hns_rcb_get_queue_mode(dsaf_mode, &max_vfn, &max_q_per_vf);
 801         rcb_common->max_vfn = max_vfn;
 802         rcb_common->max_q_per_vf = max_q_per_vf;
 803 
 804         rcb_common->io_base = hns_rcb_common_get_vaddr(rcb_common);
 805         rcb_common->phy_base = hns_rcb_common_get_paddr(rcb_common);
 806 
 807         dsaf_dev->rcb_common[comm_index] = rcb_common;
 808         return 0;
 809 }
 810 
 811 void hns_rcb_common_free_cfg(struct dsaf_device *dsaf_dev,
 812                              u32 comm_index)
 813 {
 814         dsaf_dev->rcb_common[comm_index] = NULL;
 815 }
 816 
 817 void hns_rcb_update_stats(struct hnae_queue *queue)
 818 {
 819         struct ring_pair_cb *ring =
 820                 container_of(queue, struct ring_pair_cb, q);
 821         struct dsaf_device *dsaf_dev = ring->rcb_common->dsaf_dev;
 822         struct ppe_common_cb *ppe_common
 823                 = dsaf_dev->ppe_common[ring->rcb_common->comm_index];
 824         struct hns_ring_hw_stats *hw_stats = &ring->hw_stats;
 825 
 826         hw_stats->rx_pkts += dsaf_read_dev(queue,
 827                          RCB_RING_RX_RING_PKTNUM_RECORD_REG);
 828         dsaf_write_dev(queue, RCB_RING_RX_RING_PKTNUM_RECORD_REG, 0x1);
 829 
 830         hw_stats->ppe_rx_ok_pkts += dsaf_read_dev(ppe_common,
 831                          PPE_COM_HIS_RX_PKT_QID_OK_CNT_REG + 4 * ring->index);
 832         hw_stats->ppe_rx_drop_pkts += dsaf_read_dev(ppe_common,
 833                          PPE_COM_HIS_RX_PKT_QID_DROP_CNT_REG + 4 * ring->index);
 834 
 835         hw_stats->tx_pkts += dsaf_read_dev(queue,
 836                          RCB_RING_TX_RING_PKTNUM_RECORD_REG);
 837         dsaf_write_dev(queue, RCB_RING_TX_RING_PKTNUM_RECORD_REG, 0x1);
 838 
 839         hw_stats->ppe_tx_ok_pkts += dsaf_read_dev(ppe_common,
 840                          PPE_COM_HIS_TX_PKT_QID_OK_CNT_REG + 4 * ring->index);
 841         hw_stats->ppe_tx_drop_pkts += dsaf_read_dev(ppe_common,
 842                          PPE_COM_HIS_TX_PKT_QID_ERR_CNT_REG + 4 * ring->index);
 843 }
 844 
 845 /**
 846  *hns_rcb_get_stats - get rcb statistic
 847  *@ring: rcb ring
 848  *@data:statistic value
 849  */
 850 void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data)
 851 {
 852         u64 *regs_buff = data;
 853         struct ring_pair_cb *ring =
 854                 container_of(queue, struct ring_pair_cb, q);
 855         struct hns_ring_hw_stats *hw_stats = &ring->hw_stats;
 856 
 857         regs_buff[0] = hw_stats->tx_pkts;
 858         regs_buff[1] = hw_stats->ppe_tx_ok_pkts;
 859         regs_buff[2] = hw_stats->ppe_tx_drop_pkts;
 860         regs_buff[3] =
 861                 dsaf_read_dev(queue, RCB_RING_TX_RING_FBDNUM_REG);
 862 
 863         regs_buff[4] = queue->tx_ring.stats.tx_pkts;
 864         regs_buff[5] = queue->tx_ring.stats.tx_bytes;
 865         regs_buff[6] = queue->tx_ring.stats.tx_err_cnt;
 866         regs_buff[7] = queue->tx_ring.stats.io_err_cnt;
 867         regs_buff[8] = queue->tx_ring.stats.sw_err_cnt;
 868         regs_buff[9] = queue->tx_ring.stats.seg_pkt_cnt;
 869         regs_buff[10] = queue->tx_ring.stats.restart_queue;
 870         regs_buff[11] = queue->tx_ring.stats.tx_busy;
 871 
 872         regs_buff[12] = hw_stats->rx_pkts;
 873         regs_buff[13] = hw_stats->ppe_rx_ok_pkts;
 874         regs_buff[14] = hw_stats->ppe_rx_drop_pkts;
 875         regs_buff[15] =
 876                 dsaf_read_dev(queue, RCB_RING_RX_RING_FBDNUM_REG);
 877 
 878         regs_buff[16] = queue->rx_ring.stats.rx_pkts;
 879         regs_buff[17] = queue->rx_ring.stats.rx_bytes;
 880         regs_buff[18] = queue->rx_ring.stats.rx_err_cnt;
 881         regs_buff[19] = queue->rx_ring.stats.io_err_cnt;
 882         regs_buff[20] = queue->rx_ring.stats.sw_err_cnt;
 883         regs_buff[21] = queue->rx_ring.stats.seg_pkt_cnt;
 884         regs_buff[22] = queue->rx_ring.stats.reuse_pg_cnt;
 885         regs_buff[23] = queue->rx_ring.stats.err_pkt_len;
 886         regs_buff[24] = queue->rx_ring.stats.non_vld_descs;
 887         regs_buff[25] = queue->rx_ring.stats.err_bd_num;
 888         regs_buff[26] = queue->rx_ring.stats.l2_err;
 889         regs_buff[27] = queue->rx_ring.stats.l3l4_csum_err;
 890 }
 891 
 892 /**
 893  *hns_rcb_get_ring_sset_count - rcb string set count
 894  *@stringset:ethtool cmd
 895  *return rcb ring string set count
 896  */
 897 int hns_rcb_get_ring_sset_count(int stringset)
 898 {
 899         if (stringset == ETH_SS_STATS)
 900                 return HNS_RING_STATIC_REG_NUM;
 901 
 902         return 0;
 903 }
 904 
 905 /**
 906  *hns_rcb_get_common_regs_count - rcb common regs count
 907  *return regs count
 908  */
 909 int hns_rcb_get_common_regs_count(void)
 910 {
 911         return HNS_RCB_COMMON_DUMP_REG_NUM;
 912 }
 913 
 914 /**
 915  *rcb_get_sset_count - rcb ring regs count
 916  *return regs count
 917  */
 918 int hns_rcb_get_ring_regs_count(void)
 919 {
 920         return HNS_RCB_RING_DUMP_REG_NUM;
 921 }
 922 
 923 /**
 924  *hns_rcb_get_strings - get rcb string set
 925  *@stringset:string set index
 926  *@data:strings name value
 927  *@index:queue index
 928  */
 929 void hns_rcb_get_strings(int stringset, u8 *data, int index)
 930 {
 931         char *buff = (char *)data;
 932 
 933         if (stringset != ETH_SS_STATS)
 934                 return;
 935 
 936         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_rcb_pkt_num", index);
 937         buff = buff + ETH_GSTRING_LEN;
 938         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_ppe_tx_pkt_num", index);
 939         buff = buff + ETH_GSTRING_LEN;
 940         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_ppe_drop_pkt_num", index);
 941         buff = buff + ETH_GSTRING_LEN;
 942         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_fbd_num", index);
 943         buff = buff + ETH_GSTRING_LEN;
 944 
 945         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_pkt_num", index);
 946         buff = buff + ETH_GSTRING_LEN;
 947         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_bytes", index);
 948         buff = buff + ETH_GSTRING_LEN;
 949         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_err_cnt", index);
 950         buff = buff + ETH_GSTRING_LEN;
 951         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_io_err", index);
 952         buff = buff + ETH_GSTRING_LEN;
 953         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_sw_err", index);
 954         buff = buff + ETH_GSTRING_LEN;
 955         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_seg_pkt", index);
 956         buff = buff + ETH_GSTRING_LEN;
 957         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_restart_queue", index);
 958         buff = buff + ETH_GSTRING_LEN;
 959         snprintf(buff, ETH_GSTRING_LEN, "tx_ring%d_tx_busy", index);
 960         buff = buff + ETH_GSTRING_LEN;
 961 
 962         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_rcb_pkt_num", index);
 963         buff = buff + ETH_GSTRING_LEN;
 964         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_ppe_pkt_num", index);
 965         buff = buff + ETH_GSTRING_LEN;
 966         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_ppe_drop_pkt_num", index);
 967         buff = buff + ETH_GSTRING_LEN;
 968         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_fbd_num", index);
 969         buff = buff + ETH_GSTRING_LEN;
 970 
 971         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_pkt_num", index);
 972         buff = buff + ETH_GSTRING_LEN;
 973         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_bytes", index);
 974         buff = buff + ETH_GSTRING_LEN;
 975         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_err_cnt", index);
 976         buff = buff + ETH_GSTRING_LEN;
 977         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_io_err", index);
 978         buff = buff + ETH_GSTRING_LEN;
 979         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_sw_err", index);
 980         buff = buff + ETH_GSTRING_LEN;
 981         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_seg_pkt", index);
 982         buff = buff + ETH_GSTRING_LEN;
 983         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_reuse_pg", index);
 984         buff = buff + ETH_GSTRING_LEN;
 985         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_len_err", index);
 986         buff = buff + ETH_GSTRING_LEN;
 987         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_non_vld_desc_err", index);
 988         buff = buff + ETH_GSTRING_LEN;
 989         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_bd_num_err", index);
 990         buff = buff + ETH_GSTRING_LEN;
 991         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_l2_err", index);
 992         buff = buff + ETH_GSTRING_LEN;
 993         snprintf(buff, ETH_GSTRING_LEN, "rx_ring%d_l3l4csum_err", index);
 994 }
 995 
 996 void hns_rcb_get_common_regs(struct rcb_common_cb *rcb_com, void *data)
 997 {
 998         u32 *regs = data;
 999         bool is_ver1 = AE_IS_VER1(rcb_com->dsaf_dev->dsaf_ver);
1000         bool is_dbg = HNS_DSAF_IS_DEBUG(rcb_com->dsaf_dev);
1001         u32 reg_tmp;
1002         u32 reg_num_tmp;
1003         u32 i = 0;
1004 
1005         /*rcb common registers */
1006         regs[0] = dsaf_read_dev(rcb_com, RCB_COM_CFG_ENDIAN_REG);
1007         regs[1] = dsaf_read_dev(rcb_com, RCB_COM_CFG_SYS_FSH_REG);
1008         regs[2] = dsaf_read_dev(rcb_com, RCB_COM_CFG_INIT_FLAG_REG);
1009 
1010         regs[3] = dsaf_read_dev(rcb_com, RCB_COM_CFG_PKT_REG);
1011         regs[4] = dsaf_read_dev(rcb_com, RCB_COM_CFG_RINVLD_REG);
1012         regs[5] = dsaf_read_dev(rcb_com, RCB_COM_CFG_FNA_REG);
1013         regs[6] = dsaf_read_dev(rcb_com, RCB_COM_CFG_FA_REG);
1014         regs[7] = dsaf_read_dev(rcb_com, RCB_COM_CFG_PKT_TC_BP_REG);
1015         regs[8] = dsaf_read_dev(rcb_com, RCB_COM_CFG_PPE_TNL_CLKEN_REG);
1016 
1017         regs[9] = dsaf_read_dev(rcb_com, RCB_COM_INTMSK_TX_PKT_REG);
1018         regs[10] = dsaf_read_dev(rcb_com, RCB_COM_RINT_TX_PKT_REG);
1019         regs[11] = dsaf_read_dev(rcb_com, RCB_COM_INTMASK_ECC_ERR_REG);
1020         regs[12] = dsaf_read_dev(rcb_com, RCB_COM_INTSTS_ECC_ERR_REG);
1021         regs[13] = dsaf_read_dev(rcb_com, RCB_COM_EBD_SRAM_ERR_REG);
1022         regs[14] = dsaf_read_dev(rcb_com, RCB_COM_RXRING_ERR_REG);
1023         regs[15] = dsaf_read_dev(rcb_com, RCB_COM_TXRING_ERR_REG);
1024         regs[16] = dsaf_read_dev(rcb_com, RCB_COM_TX_FBD_ERR_REG);
1025         regs[17] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK_EN_REG);
1026         regs[18] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK0_REG);
1027         regs[19] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK1_REG);
1028         regs[20] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK2_REG);
1029         regs[21] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK3_REG);
1030         regs[22] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK4_REG);
1031         regs[23] = dsaf_read_dev(rcb_com, RCB_SRAM_ECC_CHK5_REG);
1032         regs[24] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR0_REG);
1033         regs[25] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR3_REG);
1034         regs[26] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR4_REG);
1035         regs[27] = dsaf_read_dev(rcb_com, RCB_ECC_ERR_ADDR5_REG);
1036 
1037         regs[28] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_INTMASK_RING);
1038         regs[29] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_RING_STS);
1039         regs[30] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_RING);
1040         regs[31] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_INTMASK_BD);
1041         regs[32] = dsaf_read_dev(rcb_com, RCB_COM_SF_CFG_BD_RINT_STS);
1042         regs[33] = dsaf_read_dev(rcb_com, RCB_COM_RCB_RD_BD_BUSY);
1043         regs[34] = dsaf_read_dev(rcb_com, RCB_COM_RCB_FBD_CRT_EN);
1044         regs[35] = dsaf_read_dev(rcb_com, RCB_COM_AXI_WR_ERR_INTMASK);
1045         regs[36] = dsaf_read_dev(rcb_com, RCB_COM_AXI_ERR_STS);
1046         regs[37] = dsaf_read_dev(rcb_com, RCB_COM_CHK_TX_FBD_NUM_REG);
1047 
1048         /* rcb common entry registers */
1049         for (i = 0; i < 16; i++) { /* total 16 model registers */
1050                 regs[38 + i]
1051                         = dsaf_read_dev(rcb_com, RCB_CFG_BD_NUM_REG + 4 * i);
1052                 regs[54 + i]
1053                         = dsaf_read_dev(rcb_com, RCB_CFG_PKTLINE_REG + 4 * i);
1054         }
1055 
1056         reg_tmp = is_ver1 ? RCB_CFG_OVERTIME_REG : RCB_PORT_CFG_OVERTIME_REG;
1057         reg_num_tmp = (is_ver1 || is_dbg) ? 1 : 6;
1058         for (i = 0; i < reg_num_tmp; i++)
1059                 regs[70 + i] = dsaf_read_dev(rcb_com, reg_tmp);
1060 
1061         regs[76] = dsaf_read_dev(rcb_com, RCB_CFG_PKTLINE_INT_NUM_REG);
1062         regs[77] = dsaf_read_dev(rcb_com, RCB_CFG_OVERTIME_INT_NUM_REG);
1063 
1064         /* mark end of rcb common regs */
1065         for (i = 78; i < 80; i++)
1066                 regs[i] = 0xcccccccc;
1067 }
1068 
1069 void hns_rcb_get_ring_regs(struct hnae_queue *queue, void *data)
1070 {
1071         u32 *regs = data;
1072         struct ring_pair_cb *ring_pair
1073                 = container_of(queue, struct ring_pair_cb, q);
1074         u32 i = 0;
1075 
1076         /*rcb ring registers */
1077         regs[0] = dsaf_read_dev(queue, RCB_RING_RX_RING_BASEADDR_L_REG);
1078         regs[1] = dsaf_read_dev(queue, RCB_RING_RX_RING_BASEADDR_H_REG);
1079         regs[2] = dsaf_read_dev(queue, RCB_RING_RX_RING_BD_NUM_REG);
1080         regs[3] = dsaf_read_dev(queue, RCB_RING_RX_RING_BD_LEN_REG);
1081         regs[4] = dsaf_read_dev(queue, RCB_RING_RX_RING_PKTLINE_REG);
1082         regs[5] = dsaf_read_dev(queue, RCB_RING_RX_RING_TAIL_REG);
1083         regs[6] = dsaf_read_dev(queue, RCB_RING_RX_RING_HEAD_REG);
1084         regs[7] = dsaf_read_dev(queue, RCB_RING_RX_RING_FBDNUM_REG);
1085         regs[8] = dsaf_read_dev(queue, RCB_RING_RX_RING_PKTNUM_RECORD_REG);
1086 
1087         regs[9] = dsaf_read_dev(queue, RCB_RING_TX_RING_BASEADDR_L_REG);
1088         regs[10] = dsaf_read_dev(queue, RCB_RING_TX_RING_BASEADDR_H_REG);
1089         regs[11] = dsaf_read_dev(queue, RCB_RING_TX_RING_BD_NUM_REG);
1090         regs[12] = dsaf_read_dev(queue, RCB_RING_TX_RING_BD_LEN_REG);
1091         regs[13] = dsaf_read_dev(queue, RCB_RING_TX_RING_PKTLINE_REG);
1092         regs[15] = dsaf_read_dev(queue, RCB_RING_TX_RING_TAIL_REG);
1093         regs[16] = dsaf_read_dev(queue, RCB_RING_TX_RING_HEAD_REG);
1094         regs[17] = dsaf_read_dev(queue, RCB_RING_TX_RING_FBDNUM_REG);
1095         regs[18] = dsaf_read_dev(queue, RCB_RING_TX_RING_OFFSET_REG);
1096         regs[19] = dsaf_read_dev(queue, RCB_RING_TX_RING_PKTNUM_RECORD_REG);
1097 
1098         regs[20] = dsaf_read_dev(queue, RCB_RING_PREFETCH_EN_REG);
1099         regs[21] = dsaf_read_dev(queue, RCB_RING_CFG_VF_NUM_REG);
1100         regs[22] = dsaf_read_dev(queue, RCB_RING_ASID_REG);
1101         regs[23] = dsaf_read_dev(queue, RCB_RING_RX_VM_REG);
1102         regs[24] = dsaf_read_dev(queue, RCB_RING_T0_BE_RST);
1103         regs[25] = dsaf_read_dev(queue, RCB_RING_COULD_BE_RST);
1104         regs[26] = dsaf_read_dev(queue, RCB_RING_WRR_WEIGHT_REG);
1105 
1106         regs[27] = dsaf_read_dev(queue, RCB_RING_INTMSK_RXWL_REG);
1107         regs[28] = dsaf_read_dev(queue, RCB_RING_INTSTS_RX_RING_REG);
1108         regs[29] = dsaf_read_dev(queue, RCB_RING_INTMSK_TXWL_REG);
1109         regs[30] = dsaf_read_dev(queue, RCB_RING_INTSTS_TX_RING_REG);
1110         regs[31] = dsaf_read_dev(queue, RCB_RING_INTMSK_RX_OVERTIME_REG);
1111         regs[32] = dsaf_read_dev(queue, RCB_RING_INTSTS_RX_OVERTIME_REG);
1112         regs[33] = dsaf_read_dev(queue, RCB_RING_INTMSK_TX_OVERTIME_REG);
1113         regs[34] = dsaf_read_dev(queue, RCB_RING_INTSTS_TX_OVERTIME_REG);
1114 
1115         /* mark end of ring regs */
1116         for (i = 35; i < 40; i++)
1117                 regs[i] = 0xcccccc00 + ring_pair->index;
1118 }

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