drivers/net/ethernet/hisilicon/hns/hnae.h

   1 /*
   2  * Copyright (c) 2014-2015 Hisilicon Limited.
   3  *
   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.
   8  */
   9
  10 #ifndef __HNAE_H
  11 #define __HNAE_H
  12
  13 /* Names used in this framework:
  14  *      ae handle (handle):
  15  *        a set of queues provided by AE
  16  *      ring buffer queue (rbq):
  17  *        the channel between upper layer and the AE, can do tx and rx
  18  *      ring:
  19  *        a tx or rx channel within a rbq
  20  *      ring description (desc):
  21  *        an element in the ring with packet information
  22  *      buffer:
  23  *        a memory region referred by desc with the full packet payload
  24  *
  25  * "num" means a static number set as a parameter, "count" mean a dynamic
  26  *   number set while running
  27  * "cb" means control block
  28  */
  29
  30 #include <linux/delay.h>
  31 #include <linux/device.h>
  32 #include <linux/module.h>
  33 #include <linux/netdevice.h>
  34 #include <linux/notifier.h>
  35 #include <linux/phy.h>
  36 #include <linux/types.h>
  37
  38 #define HNAE_DRIVER_VERSION "1.3.0"
  39 #define HNAE_DRIVER_NAME "hns"
  40 #define HNAE_COPYRIGHT "Copyright(c) 2015 Huawei Corporation."
  41 #define HNAE_DRIVER_STRING "Hisilicon Network Subsystem Driver"
  42 #define HNAE_DEFAULT_DEVICE_DESCR "Hisilicon Network Subsystem"
  43
  44 #ifdef DEBUG
  45
  46 #ifndef assert
  47 #define assert(expr) \
  48 do { \
  49         if (!(expr)) { \
  50                 pr_err("Assertion failed! %s, %s, %s, line %d\n", \
  51                            #expr, __FILE__, __func__, __LINE__); \
  52         } \
  53 } while (0)
  54 #endif
  55
  56 #else
  57
  58 #ifndef assert
  59 #define assert(expr)
  60 #endif
  61
  62 #endif
  63
  64 #define AE_VERSION_1 ('6' << 16 | '6' << 8 | '0')
  65 #define AE_VERSION_2 ('1' << 24 | '6' << 16 | '1' << 8 | '0')
  66 #define AE_NAME_SIZE 16
  67
  68 /* some said the RX and TX RCB format should not be the same in the future. But
  69  * it is the same now...
  70  */
  71 #define RCB_REG_BASEADDR_L         0x00 /* P660 support only 32bit accessing */
  72 #define RCB_REG_BASEADDR_H         0x04
  73 #define RCB_REG_BD_NUM             0x08
  74 #define RCB_REG_BD_LEN             0x0C
  75 #define RCB_REG_PKTLINE            0x10
  76 #define RCB_REG_TAIL               0x18
  77 #define RCB_REG_HEAD               0x1C
  78 #define RCB_REG_FBDNUM             0x20
  79 #define RCB_REG_OFFSET             0x24 /* pkt num to be handled */
  80 #define RCB_REG_PKTNUM_RECORD      0x2C /* total pkt received */
  81
  82 #define HNS_RX_HEAD_SIZE 256
  83
  84 #define HNAE_AE_REGISTER 0x1
  85
  86 #define RCB_RING_NAME_LEN 16
  87
  88 enum hnae_led_state {
  89         HNAE_LED_INACTIVE,
  90         HNAE_LED_ACTIVE,
  91         HNAE_LED_ON,
  92         HNAE_LED_OFF
  93 };
  94
  95 #define HNS_RX_FLAG_VLAN_PRESENT 0x1
  96 #define HNS_RX_FLAG_L3ID_IPV4 0x0
  97 #define HNS_RX_FLAG_L3ID_IPV6 0x1
  98 #define HNS_RX_FLAG_L4ID_UDP 0x0
  99 #define HNS_RX_FLAG_L4ID_TCP 0x1
 100
 101 #define HNS_TXD_ASID_S 0
 102 #define HNS_TXD_ASID_M (0xff << HNS_TXD_ASID_S)
 103 #define HNS_TXD_BUFNUM_S 8
 104 #define HNS_TXD_BUFNUM_M (0x3 << HNS_TXD_BUFNUM_S)
 105 #define HNS_TXD_PORTID_S 10
 106 #define HNS_TXD_PORTID_M (0x7 << HNS_TXD_PORTID_S)
 107
 108 #define HNS_TXD_RA_B 8
 109 #define HNS_TXD_RI_B 9
 110 #define HNS_TXD_L4CS_B 10
 111 #define HNS_TXD_L3CS_B 11
 112 #define HNS_TXD_FE_B 12
 113 #define HNS_TXD_VLD_B 13
 114 #define HNS_TXD_IPOFFSET_S 14
 115 #define HNS_TXD_IPOFFSET_M (0xff << HNS_TXD_IPOFFSET_S)
 116
 117 #define HNS_RXD_IPOFFSET_S 0
 118 #define HNS_RXD_IPOFFSET_M (0xff << HNS_TXD_IPOFFSET_S)
 119 #define HNS_RXD_BUFNUM_S 8
 120 #define HNS_RXD_BUFNUM_M (0x3 << HNS_RXD_BUFNUM_S)
 121 #define HNS_RXD_PORTID_S 10
 122 #define HNS_RXD_PORTID_M (0x7 << HNS_RXD_PORTID_S)
 123 #define HNS_RXD_DMAC_S 13
 124 #define HNS_RXD_DMAC_M (0x3 << HNS_RXD_DMAC_S)
 125 #define HNS_RXD_VLAN_S 15
 126 #define HNS_RXD_VLAN_M (0x3 << HNS_RXD_VLAN_S)
 127 #define HNS_RXD_L3ID_S 17
 128 #define HNS_RXD_L3ID_M (0xf << HNS_RXD_L3ID_S)
 129 #define HNS_RXD_L4ID_S 21
 130 #define HNS_RXD_L4ID_M (0xf << HNS_RXD_L4ID_S)
 131 #define HNS_RXD_FE_B 25
 132 #define HNS_RXD_FRAG_B 26
 133 #define HNS_RXD_VLD_B 27
 134 #define HNS_RXD_L2E_B 28
 135 #define HNS_RXD_L3E_B 29
 136 #define HNS_RXD_L4E_B 30
 137 #define HNS_RXD_DROP_B 31
 138
 139 #define HNS_RXD_VLANID_S 8
 140 #define HNS_RXD_VLANID_M (0xfff << HNS_RXD_VLANID_S)
 141 #define HNS_RXD_CFI_B 20
 142 #define HNS_RXD_PRI_S 21
 143 #define HNS_RXD_PRI_M (0x7 << HNS_RXD_PRI_S)
 144 #define HNS_RXD_ASID_S 24
 145 #define HNS_RXD_ASID_M (0xff << HNS_RXD_ASID_S)
 146
 147 /* hardware spec ring buffer format */
 148 struct __packed hnae_desc {
 149         __le64 addr;
 150         union {
 151                 struct {
 152                         __le16 asid_bufnum_pid;
 153                         __le16 send_size;
 154                         __le32 flag_ipoffset;
 155                         __le32 reserved_3[4];
 156                 } tx;
 157
 158                 struct {
 159                         __le32 ipoff_bnum_pid_flag;
 160                         __le16 pkt_len;
 161                         __le16 size;
 162                         __le32 vlan_pri_asid;
 163                         __le32 reserved_2[3];
 164                 } rx;
 165         };
 166 };
 167
 168 struct hnae_desc_cb {
 169         dma_addr_t dma; /* dma address of this desc */
 170         void *buf;      /* cpu addr for a desc */
 171
 172         /* priv data for the desc, e.g. skb when use with ip stack*/
 173         void *priv;
 174         u16 page_offset;
 175         u16 reuse_flag;
 176
 177         u16 length;     /* length of the buffer */
 178
 179        /* desc type, used by the ring user to mark the type of the priv data */
 180         u16 type;
 181 };
 182
 183 #define setflags(flags, bits) ((flags) |= (bits))
 184 #define unsetflags(flags, bits) ((flags) &= ~(bits))
 185
 186 /* hnae_ring->flags fields */
 187 #define RINGF_DIR 0x1       /* TX or RX ring, set if TX */
 188 #define is_tx_ring(ring) ((ring)->flags & RINGF_DIR)
 189 #define is_rx_ring(ring) (!is_tx_ring(ring))
 190 #define ring_to_dma_dir(ring) (is_tx_ring(ring) ? \
 191         DMA_TO_DEVICE : DMA_FROM_DEVICE)
 192
 193 struct ring_stats {
 194         u64 io_err_cnt;
 195         u64 sw_err_cnt;
 196         u64 seg_pkt_cnt;
 197         union {
 198                 struct {
 199                         u64 tx_pkts;
 200                         u64 tx_bytes;
 201                         u64 tx_err_cnt;
 202                         u64 restart_queue;
 203                         u64 tx_busy;
 204                 };
 205                 struct {
 206                         u64 rx_pkts;
 207                         u64 rx_bytes;
 208                         u64 rx_err_cnt;
 209                         u64 reuse_pg_cnt;
 210                         u64 err_pkt_len;
 211                         u64 non_vld_descs;
 212                         u64 err_bd_num;
 213                         u64 l2_err;
 214                         u64 l3l4_csum_err;
 215                 };
 216         };
 217 };
 218
 219 struct hnae_queue;
 220
 221 struct hnae_ring {
 222         u8 __iomem *io_base; /* base io address for the ring */
 223         struct hnae_desc *desc; /* dma map address space */
 224         struct hnae_desc_cb *desc_cb;
 225         struct hnae_queue *q;
 226         int irq;
 227         char ring_name[RCB_RING_NAME_LEN];
 228
 229         /* statistic */
 230         struct ring_stats stats;
 231
 232         dma_addr_t desc_dma_addr;
 233         u32 buf_size;       /* size for hnae_desc->addr, preset by AE */
 234         u16 desc_num;       /* total number of desc */
 235         u16 max_desc_num_per_pkt;
 236         u16 max_raw_data_sz_per_desc;
 237         u16 max_pkt_size;
 238         int next_to_use;    /* idx of next spare desc */
 239
 240         /* idx of lastest sent desc, the ring is empty when equal to
 241          * next_to_use
 242          */
 243         int next_to_clean;
 244
 245         int flags;          /* ring attribute */
 246         int irq_init_flag;
 247 };
 248
 249 #define ring_ptr_move_fw(ring, p) \
 250         ((ring)->p = ((ring)->p + 1) % (ring)->desc_num)
 251 #define ring_ptr_move_bw(ring, p) \
 252         ((ring)->p = ((ring)->p - 1 + (ring)->desc_num) % (ring)->desc_num)
 253
 254 enum hns_desc_type {
 255         DESC_TYPE_SKB,
 256         DESC_TYPE_PAGE,
 257 };
 258
 259 #define assert_is_ring_idx(ring, idx) \
 260         assert((idx) >= 0 && (idx) < (ring)->desc_num)
 261
 262 /* the distance between [begin, end) in a ring buffer
 263  * note: there is a unuse slot between the begin and the end
 264  */
 265 static inline int ring_dist(struct hnae_ring *ring, int begin, int end)
 266 {
 267         assert_is_ring_idx(ring, begin);
 268         assert_is_ring_idx(ring, end);
 269
 270         return (end - begin + ring->desc_num) % ring->desc_num;
 271 }
 272
 273 static inline int ring_space(struct hnae_ring *ring)
 274 {
 275         return ring->desc_num -
 276                 ring_dist(ring, ring->next_to_clean, ring->next_to_use) - 1;
 277 }
 278
 279 static inline int is_ring_empty(struct hnae_ring *ring)
 280 {
 281         assert_is_ring_idx(ring, ring->next_to_use);
 282         assert_is_ring_idx(ring, ring->next_to_clean);
 283
 284         return ring->next_to_use == ring->next_to_clean;
 285 }
 286
 287 #define hnae_buf_size(_ring) ((_ring)->buf_size)
 288 #define hnae_page_order(_ring) (get_order(hnae_buf_size(_ring)))
 289 #define hnae_page_size(_ring) (PAGE_SIZE << hnae_page_order(_ring))
 290
 291 struct hnae_handle;
 292
 293 /* allocate and dma map space for hnae desc */
 294 struct hnae_buf_ops {
 295         int (*alloc_buffer)(struct hnae_ring *ring, struct hnae_desc_cb *cb);
 296         void (*free_buffer)(struct hnae_ring *ring, struct hnae_desc_cb *cb);
 297         int (*map_buffer)(struct hnae_ring *ring, struct hnae_desc_cb *cb);
 298         void (*unmap_buffer)(struct hnae_ring *ring, struct hnae_desc_cb *cb);
 299 };
 300
 301 struct hnae_queue {
 302         void __iomem *io_base;
 303         phys_addr_t phy_base;
 304         struct hnae_ae_dev *dev;        /* the device who use this queue */
 305         struct hnae_ring rx_ring, tx_ring;
 306         struct hnae_handle *handle;
 307 };
 308
 309 /*hnae loop mode*/
 310 enum hnae_loop {
 311         MAC_INTERNALLOOP_MAC = 0,
 312         MAC_INTERNALLOOP_SERDES,
 313         MAC_INTERNALLOOP_PHY,
 314         MAC_LOOP_NONE,
 315 };
 316
 317 /*hnae port type*/
 318 enum hnae_port_type {
 319         HNAE_PORT_SERVICE = 0,
 320         HNAE_PORT_DEBUG
 321 };
 322
 323 /* This struct defines the operation on the handle.
 324  *
 325  * get_handle(): (mandatory)
 326  *   Get a handle from AE according to its name and options.
 327  *   the AE driver should manage the space used by handle and its queues while
 328  *   the HNAE framework will allocate desc and desc_cb for all rings in the
 329  *   queues.
 330  * put_handle():
 331  *   Release the handle.
 332  * start():
 333  *   Enable the hardware, include all queues
 334  * stop():
 335  *   Disable the hardware
 336  * set_opts(): (mandatory)
 337  *   Set options to the AE
 338  * get_opts(): (mandatory)
 339  *   Get options from the AE
 340  * get_status():
 341  *   Get the carrier state of the back channel of the handle, 1 for ok, 0 for
 342  *   non-ok
 343  * toggle_ring_irq(): (mandatory)
 344  *   Set the ring irq to be enabled(0) or disable(1)
 345  * toggle_queue_status(): (mandatory)
 346  *   Set the queue to be enabled(1) or disable(0), this will not change the
 347  *   ring irq state
 348  * adjust_link()
 349  *   adjust link status
 350  * set_loopback()
 351  *   set loopback
 352  * get_ring_bdnum_limit()
 353  *   get ring bd number limit
 354  * get_pauseparam()
 355  *   get tx and rx of pause frame use
 356  * set_autoneg()
 357  *   set auto autonegotiation of pause frame use
 358  * get_autoneg()
 359  *   get auto autonegotiation of pause frame use
 360  * set_pauseparam()
 361  *   set tx and rx of pause frame use
 362  * get_coalesce_usecs()
 363  *   get usecs to delay a TX interrupt after a packet is sent
 364  * get_rx_max_coalesced_frames()
 365  *   get Maximum number of packets to be sent before a TX interrupt.
 366  * set_coalesce_usecs()
 367  *   set usecs to delay a TX interrupt after a packet is sent
 368  * set_coalesce_frames()
 369  *   set Maximum number of packets to be sent before a TX interrupt.
 370  * get_ringnum()
 371  *   get RX/TX ring number
 372  * get_max_ringnum()
 373  *   get RX/TX ring maximum number
 374  * get_mac_addr()
 375  *   get mac address
 376  * set_mac_addr()
 377  *   set mac address
 378  * set_mc_addr()
 379  *   set multicast mode
 380  * set_mtu()
 381  *   set mtu
 382  * update_stats()
 383  *   update Old network device statistics
 384  * get_ethtool_stats()
 385  *   get ethtool network device statistics
 386  * get_strings()
 387  *   get a set of strings that describe the requested objects
 388  * get_sset_count()
 389  *   get number of strings that @get_strings will write
 390  * update_led_status()
 391  *   update the led status
 392  * set_led_id()
 393  *   set led id
 394  * get_regs()
 395  *   get regs dump
 396  * get_regs_len()
 397  *   get the len of the regs dump
 398  */
 399 struct hnae_ae_ops {
 400         struct hnae_handle *(*get_handle)(struct hnae_ae_dev *dev,
 401                                           u32 port_id);
 402         void (*put_handle)(struct hnae_handle *handle);
 403         void (*init_queue)(struct hnae_queue *q);
 404         void (*fini_queue)(struct hnae_queue *q);
 405         int (*start)(struct hnae_handle *handle);
 406         void (*stop)(struct hnae_handle *handle);
 407         void (*reset)(struct hnae_handle *handle);
 408         int (*set_opts)(struct hnae_handle *handle, int type, void *opts);
 409         int (*get_opts)(struct hnae_handle *handle, int type, void **opts);
 410         int (*get_status)(struct hnae_handle *handle);
 411         int (*get_info)(struct hnae_handle *handle,
 412                         u8 *auto_neg, u16 *speed, u8 *duplex);
 413         void (*toggle_ring_irq)(struct hnae_ring *ring, u32 val);
 414         void (*toggle_queue_status)(struct hnae_queue *queue, u32 val);
 415         void (*adjust_link)(struct hnae_handle *handle, int speed, int duplex);
 416         int (*set_loopback)(struct hnae_handle *handle,
 417                             enum hnae_loop loop_mode, int en);
 418         void (*get_ring_bdnum_limit)(struct hnae_queue *queue,
 419                                      u32 *uplimit);
 420         void (*get_pauseparam)(struct hnae_handle *handle,
 421                                u32 *auto_neg, u32 *rx_en, u32 *tx_en);
 422         int (*set_autoneg)(struct hnae_handle *handle, u8 enable);
 423         int (*get_autoneg)(struct hnae_handle *handle);
 424         int (*set_pauseparam)(struct hnae_handle *handle,
 425                               u32 auto_neg, u32 rx_en, u32 tx_en);
 426         void (*get_coalesce_usecs)(struct hnae_handle *handle,
 427                                    u32 *tx_usecs, u32 *rx_usecs);
 428         void (*get_rx_max_coalesced_frames)(struct hnae_handle *handle,
 429                                             u32 *tx_frames, u32 *rx_frames);
 430         void (*set_coalesce_usecs)(struct hnae_handle *handle, u32 timeout);
 431         int (*set_coalesce_frames)(struct hnae_handle *handle,
 432                                    u32 coalesce_frames);
 433         void (*set_promisc_mode)(struct hnae_handle *handle, u32 en);
 434         int (*get_mac_addr)(struct hnae_handle *handle, void **p);
 435         int (*set_mac_addr)(struct hnae_handle *handle, void *p);
 436         int (*set_mc_addr)(struct hnae_handle *handle, void *addr);
 437         int (*set_mtu)(struct hnae_handle *handle, int new_mtu);
 438         void (*update_stats)(struct hnae_handle *handle,
 439                              struct net_device_stats *net_stats);
 440         void (*get_stats)(struct hnae_handle *handle, u64 *data);
 441         void (*get_strings)(struct hnae_handle *handle,
 442                             u32 stringset, u8 *data);
 443         int (*get_sset_count)(struct hnae_handle *handle, int stringset);
 444         void (*update_led_status)(struct hnae_handle *handle);
 445         int (*set_led_id)(struct hnae_handle *handle,
 446                           enum hnae_led_state status);
 447         void (*get_regs)(struct hnae_handle *handle, void *data);
 448         int (*get_regs_len)(struct hnae_handle *handle);
 449 };
 450
 451 struct hnae_ae_dev {
 452         struct device cls_dev; /* the class dev */
 453         struct device *dev; /* the presented dev */
 454         struct hnae_ae_ops *ops;
 455         struct list_head node;
 456         struct module *owner; /* the module who provides this dev */
 457         int id;
 458         char name[AE_NAME_SIZE];
 459         struct list_head handle_list;
 460         spinlock_t lock; /* lock to protect the handle_list */
 461 };
 462
 463 struct hnae_handle {
 464         struct device *owner_dev; /* the device which make use of this handle */
 465         struct hnae_ae_dev *dev;  /* the device who provides this handle */
 466         struct device_node *phy_node;
 467         phy_interface_t phy_if;
 468         u32 if_support;
 469         int q_num;
 470         int vf_id;
 471         u32 eport_id;
 472         enum hnae_port_type port_type;
 473         struct list_head node;    /* list to hnae_ae_dev->handle_list */
 474         struct hnae_buf_ops *bops; /* operation for the buffer */
 475         struct hnae_queue **qs;  /* array base of all queues */
 476 };
 477
 478 #define ring_to_dev(ring) ((ring)->q->dev->dev)
 479
 480 struct hnae_handle *hnae_get_handle(struct device *owner_dev, const char *ae_id,
 481                                     u32 port_id, struct hnae_buf_ops *bops);
 482 void hnae_put_handle(struct hnae_handle *handle);
 483 int hnae_ae_register(struct hnae_ae_dev *dev, struct module *owner);
 484 void hnae_ae_unregister(struct hnae_ae_dev *dev);
 485
 486 int hnae_register_notifier(struct notifier_block *nb);
 487 void hnae_unregister_notifier(struct notifier_block *nb);
 488 int hnae_reinit_handle(struct hnae_handle *handle);
 489
 490 #define hnae_queue_xmit(q, buf_num) writel_relaxed(buf_num, \
 491         (q)->tx_ring.io_base + RCB_REG_TAIL)
 492
 493 #ifndef assert
 494 #define assert(cond)
 495 #endif
 496
 497 static inline int hnae_reserve_buffer_map(struct hnae_ring *ring,
 498                                           struct hnae_desc_cb *cb)
 499 {
 500         struct hnae_buf_ops *bops = ring->q->handle->bops;
 501         int ret;
 502
 503         ret = bops->alloc_buffer(ring, cb);
 504         if (ret)
 505                 goto out;
 506
 507         ret = bops->map_buffer(ring, cb);
 508         if (ret)
 509                 goto out_with_buf;
 510
 511         return 0;
 512
 513 out_with_buf:
 514         bops->free_buffer(ring, cb);
 515 out:
 516         return ret;
 517 }
 518
 519 static inline int hnae_alloc_buffer_attach(struct hnae_ring *ring, int i)
 520 {
 521         int ret = hnae_reserve_buffer_map(ring, &ring->desc_cb[i]);
 522
 523         if (ret)
 524                 return ret;
 525
 526         ring->desc[i].addr = (__le64)ring->desc_cb[i].dma;
 527
 528         return 0;
 529 }
 530
 531 static inline void hnae_buffer_detach(struct hnae_ring *ring, int i)
 532 {
 533         ring->q->handle->bops->unmap_buffer(ring, &ring->desc_cb[i]);
 534         ring->desc[i].addr = 0;
 535 }
 536
 537 static inline void hnae_free_buffer_detach(struct hnae_ring *ring, int i)
 538 {
 539         struct hnae_buf_ops *bops = ring->q->handle->bops;
 540         struct hnae_desc_cb *cb = &ring->desc_cb[i];
 541
 542         if (!ring->desc_cb[i].dma)
 543                 return;
 544
 545         hnae_buffer_detach(ring, i);
 546         bops->free_buffer(ring, cb);
 547 }
 548
 549 /* detach a in-used buffer and replace with a reserved one  */
 550 static inline void hnae_replace_buffer(struct hnae_ring *ring, int i,
 551                                        struct hnae_desc_cb *res_cb)
 552 {
 553         struct hnae_buf_ops *bops = ring->q->handle->bops;
 554         struct hnae_desc_cb tmp_cb = ring->desc_cb[i];
 555
 556         bops->unmap_buffer(ring, &ring->desc_cb[i]);
 557         ring->desc_cb[i] = *res_cb;
 558         *res_cb = tmp_cb;
 559         ring->desc[i].addr = (__le64)ring->desc_cb[i].dma;
 560         ring->desc[i].rx.ipoff_bnum_pid_flag = 0;
 561 }
 562
 563 static inline void hnae_reuse_buffer(struct hnae_ring *ring, int i)
 564 {
 565         ring->desc_cb[i].reuse_flag = 0;
 566         ring->desc[i].addr = (__le64)(ring->desc_cb[i].dma
 567                 + ring->desc_cb[i].page_offset);
 568         ring->desc[i].rx.ipoff_bnum_pid_flag = 0;
 569 }
 570
 571 #define hnae_set_field(origin, mask, shift, val) \
 572         do { \
 573                 (origin) &= (~(mask)); \
 574                 (origin) |= ((val) << (shift)) & (mask); \
 575         } while (0)
 576
 577 #define hnae_set_bit(origin, shift, val) \
 578         hnae_set_field((origin), (0x1 << (shift)), (shift), (val))
 579
 580 #define hnae_get_field(origin, mask, shift) (((origin) & (mask)) >> (shift))
 581
 582 #define hnae_get_bit(origin, shift) \
 583         hnae_get_field((origin), (0x1 << (shift)), (shift))
 584
 585 #endif