drivers/net/ethernet/hisilicon/hns3/hnae3.h

   1 /*
   2  * Copyright (c) 2016-2017 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 __HNAE3_H
  11 #define __HNAE3_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/acpi.h>
  31 #include <linux/delay.h>
  32 #include <linux/device.h>
  33 #include <linux/module.h>
  34 #include <linux/netdevice.h>
  35 #include <linux/pci.h>
  36 #include <linux/types.h>
  37
  38 /* Device IDs */
  39 #define HNAE3_DEV_ID_GE                         0xA220
  40 #define HNAE3_DEV_ID_25GE                       0xA221
  41 #define HNAE3_DEV_ID_25GE_RDMA                  0xA222
  42 #define HNAE3_DEV_ID_25GE_RDMA_MACSEC           0xA223
  43 #define HNAE3_DEV_ID_50GE_RDMA                  0xA224
  44 #define HNAE3_DEV_ID_50GE_RDMA_MACSEC           0xA225
  45 #define HNAE3_DEV_ID_100G_RDMA_MACSEC           0xA226
  46 #define HNAE3_DEV_ID_100G_VF                    0xA22E
  47 #define HNAE3_DEV_ID_100G_RDMA_DCB_PFC_VF       0xA22F
  48
  49 #define HNAE3_CLASS_NAME_SIZE 16
  50
  51 #define HNAE3_DEV_INITED_B                      0x0
  52 #define HNAE3_DEV_SUPPORT_ROCE_B                0x1
  53 #define HNAE3_DEV_SUPPORT_DCB_B                 0x2
  54
  55 #define HNAE3_DEV_SUPPORT_ROCE_DCB_BITS (BIT(HNAE3_DEV_SUPPORT_DCB_B) |\
  56                 BIT(HNAE3_DEV_SUPPORT_ROCE_B))
  57
  58 #define hnae3_dev_roce_supported(hdev) \
  59         hnae_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_ROCE_B)
  60
  61 #define hnae3_dev_dcb_supported(hdev) \
  62         hnae_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_DCB_B)
  63
  64 #define ring_ptr_move_fw(ring, p) \
  65         ((ring)->p = ((ring)->p + 1) % (ring)->desc_num)
  66 #define ring_ptr_move_bw(ring, p) \
  67         ((ring)->p = ((ring)->p - 1 + (ring)->desc_num) % (ring)->desc_num)
  68
  69 enum hns_desc_type {
  70         DESC_TYPE_SKB,
  71         DESC_TYPE_PAGE,
  72 };
  73
  74 struct hnae3_handle;
  75
  76 struct hnae3_queue {
  77         void __iomem *io_base;
  78         struct hnae3_ae_algo *ae_algo;
  79         struct hnae3_handle *handle;
  80         int tqp_index;  /* index in a handle */
  81         u32 buf_size;   /* size for hnae_desc->addr, preset by AE */
  82         u16 desc_num;   /* total number of desc */
  83 };
  84
  85 /*hnae3 loop mode*/
  86 enum hnae3_loop {
  87         HNAE3_MAC_INTER_LOOP_MAC,
  88         HNAE3_MAC_INTER_LOOP_SERDES,
  89         HNAE3_MAC_INTER_LOOP_PHY,
  90         HNAE3_MAC_LOOP_NONE,
  91 };
  92
  93 enum hnae3_client_type {
  94         HNAE3_CLIENT_KNIC,
  95         HNAE3_CLIENT_UNIC,
  96         HNAE3_CLIENT_ROCE,
  97 };
  98
  99 enum hnae3_dev_type {
 100         HNAE3_DEV_KNIC,
 101         HNAE3_DEV_UNIC,
 102 };
 103
 104 /* mac media type */
 105 enum hnae3_media_type {
 106         HNAE3_MEDIA_TYPE_UNKNOWN,
 107         HNAE3_MEDIA_TYPE_FIBER,
 108         HNAE3_MEDIA_TYPE_COPPER,
 109         HNAE3_MEDIA_TYPE_BACKPLANE,
 110 };
 111
 112 struct hnae3_vector_info {
 113         u8 __iomem *io_addr;
 114         int vector;
 115 };
 116
 117 #define HNAE3_RING_TYPE_B 0
 118 #define HNAE3_RING_TYPE_TX 0
 119 #define HNAE3_RING_TYPE_RX 1
 120
 121 struct hnae3_ring_chain_node {
 122         struct hnae3_ring_chain_node *next;
 123         u32 tqp_index;
 124         u32 flag;
 125 };
 126
 127 #define HNAE3_IS_TX_RING(node) \
 128         (((node)->flag & (1 << HNAE3_RING_TYPE_B)) == HNAE3_RING_TYPE_TX)
 129
 130 struct hnae3_client_ops {
 131         int (*init_instance)(struct hnae3_handle *handle);
 132         void (*uninit_instance)(struct hnae3_handle *handle, bool reset);
 133         void (*link_status_change)(struct hnae3_handle *handle, bool state);
 134 };
 135
 136 #define HNAE3_CLIENT_NAME_LENGTH 16
 137 struct hnae3_client {
 138         char name[HNAE3_CLIENT_NAME_LENGTH];
 139         u16 version;
 140         unsigned long state;
 141         enum hnae3_client_type type;
 142         const struct hnae3_client_ops *ops;
 143         struct list_head node;
 144 };
 145
 146 struct hnae3_ae_dev {
 147         struct pci_dev *pdev;
 148         const struct hnae3_ae_ops *ops;
 149         struct list_head node;
 150         u32 flag;
 151         enum hnae3_dev_type dev_type;
 152         void *priv;
 153 };
 154
 155 /* This struct defines the operation on the handle.
 156  *
 157  * init_ae_dev(): (mandatory)
 158  *   Get PF configure from pci_dev and initialize PF hardware
 159  * uninit_ae_dev()
 160  *   Disable PF device and release PF resource
 161  * register_client
 162  *   Register client to ae_dev
 163  * unregister_client()
 164  *   Unregister client from ae_dev
 165  * start()
 166  *   Enable the hardware
 167  * stop()
 168  *   Disable the hardware
 169  * get_status()
 170  *   Get the carrier state of the back channel of the handle, 1 for ok, 0 for
 171  *   non-ok
 172  * get_ksettings_an_result()
 173  *   Get negotiation status,speed and duplex
 174  * update_speed_duplex_h()
 175  *   Update hardware speed and duplex
 176  * get_media_type()
 177  *   Get media type of MAC
 178  * adjust_link()
 179  *   Adjust link status
 180  * set_loopback()
 181  *   Set loopback
 182  * set_promisc_mode
 183  *   Set promisc mode
 184  * set_mtu()
 185  *   set mtu
 186  * get_pauseparam()
 187  *   get tx and rx of pause frame use
 188  * set_pauseparam()
 189  *   set tx and rx of pause frame use
 190  * set_autoneg()
 191  *   set auto autonegotiation of pause frame use
 192  * get_autoneg()
 193  *   get auto autonegotiation of pause frame use
 194  * get_coalesce_usecs()
 195  *   get usecs to delay a TX interrupt after a packet is sent
 196  * get_rx_max_coalesced_frames()
 197  *   get Maximum number of packets to be sent before a TX interrupt.
 198  * set_coalesce_usecs()
 199  *   set usecs to delay a TX interrupt after a packet is sent
 200  * set_coalesce_frames()
 201  *   set Maximum number of packets to be sent before a TX interrupt.
 202  * get_mac_addr()
 203  *   get mac address
 204  * set_mac_addr()
 205  *   set mac address
 206  * add_uc_addr
 207  *   Add unicast addr to mac table
 208  * rm_uc_addr
 209  *   Remove unicast addr from mac table
 210  * set_mc_addr()
 211  *   Set multicast address
 212  * add_mc_addr
 213  *   Add multicast address to mac table
 214  * rm_mc_addr
 215  *   Remove multicast address from mac table
 216  * update_stats()
 217  *   Update Old network device statistics
 218  * get_ethtool_stats()
 219  *   Get ethtool network device statistics
 220  * get_strings()
 221  *   Get a set of strings that describe the requested objects
 222  * get_sset_count()
 223  *   Get number of strings that @get_strings will write
 224  * update_led_status()
 225  *   Update the led status
 226  * set_led_id()
 227  *   Set led id
 228  * get_regs()
 229  *   Get regs dump
 230  * get_regs_len()
 231  *   Get the len of the regs dump
 232  * get_rss_key_size()
 233  *   Get rss key size
 234  * get_rss_indir_size()
 235  *   Get rss indirection table size
 236  * get_rss()
 237  *   Get rss table
 238  * set_rss()
 239  *   Set rss table
 240  * get_tc_size()
 241  *   Get tc size of handle
 242  * get_vector()
 243  *   Get vector number and vector information
 244  * map_ring_to_vector()
 245  *   Map rings to vector
 246  * unmap_ring_from_vector()
 247  *   Unmap rings from vector
 248  * add_tunnel_udp()
 249  *   Add tunnel information to hardware
 250  * del_tunnel_udp()
 251  *   Delete tunnel information from hardware
 252  * reset_queue()
 253  *   Reset queue
 254  * get_fw_version()
 255  *   Get firmware version
 256  * get_mdix_mode()
 257  *   Get media typr of phy
 258  * set_vlan_filter()
 259  *   Set vlan filter config of Ports
 260  * set_vf_vlan_filter()
 261  *   Set vlan filter config of vf
 262  */
 263 struct hnae3_ae_ops {
 264         int (*init_ae_dev)(struct hnae3_ae_dev *ae_dev);
 265         void (*uninit_ae_dev)(struct hnae3_ae_dev *ae_dev);
 266
 267         int (*init_client_instance)(struct hnae3_client *client,
 268                                     struct hnae3_ae_dev *ae_dev);
 269         void (*uninit_client_instance)(struct hnae3_client *client,
 270                                        struct hnae3_ae_dev *ae_dev);
 271         int (*start)(struct hnae3_handle *handle);
 272         void (*stop)(struct hnae3_handle *handle);
 273         int (*get_status)(struct hnae3_handle *handle);
 274         void (*get_ksettings_an_result)(struct hnae3_handle *handle,
 275                                         u8 *auto_neg, u32 *speed, u8 *duplex);
 276
 277         int (*update_speed_duplex_h)(struct hnae3_handle *handle);
 278         int (*cfg_mac_speed_dup_h)(struct hnae3_handle *handle, int speed,
 279                                    u8 duplex);
 280
 281         void (*get_media_type)(struct hnae3_handle *handle, u8 *media_type);
 282         void (*adjust_link)(struct hnae3_handle *handle, int speed, int duplex);
 283         int (*set_loopback)(struct hnae3_handle *handle,
 284                             enum hnae3_loop loop_mode, bool en);
 285
 286         void (*set_promisc_mode)(struct hnae3_handle *handle, u32 en);
 287         int (*set_mtu)(struct hnae3_handle *handle, int new_mtu);
 288
 289         void (*get_pauseparam)(struct hnae3_handle *handle,
 290                                u32 *auto_neg, u32 *rx_en, u32 *tx_en);
 291         int (*set_pauseparam)(struct hnae3_handle *handle,
 292                               u32 auto_neg, u32 rx_en, u32 tx_en);
 293
 294         int (*set_autoneg)(struct hnae3_handle *handle, bool enable);
 295         int (*get_autoneg)(struct hnae3_handle *handle);
 296
 297         void (*get_coalesce_usecs)(struct hnae3_handle *handle,
 298                                    u32 *tx_usecs, u32 *rx_usecs);
 299         void (*get_rx_max_coalesced_frames)(struct hnae3_handle *handle,
 300                                             u32 *tx_frames, u32 *rx_frames);
 301         int (*set_coalesce_usecs)(struct hnae3_handle *handle, u32 timeout);
 302         int (*set_coalesce_frames)(struct hnae3_handle *handle,
 303                                    u32 coalesce_frames);
 304         void (*get_coalesce_range)(struct hnae3_handle *handle,
 305                                    u32 *tx_frames_low, u32 *rx_frames_low,
 306                                    u32 *tx_frames_high, u32 *rx_frames_high,
 307                                    u32 *tx_usecs_low, u32 *rx_usecs_low,
 308                                    u32 *tx_usecs_high, u32 *rx_usecs_high);
 309
 310         void (*get_mac_addr)(struct hnae3_handle *handle, u8 *p);
 311         int (*set_mac_addr)(struct hnae3_handle *handle, void *p);
 312         int (*add_uc_addr)(struct hnae3_handle *handle,
 313                            const unsigned char *addr);
 314         int (*rm_uc_addr)(struct hnae3_handle *handle,
 315                           const unsigned char *addr);
 316         int (*set_mc_addr)(struct hnae3_handle *handle, void *addr);
 317         int (*add_mc_addr)(struct hnae3_handle *handle,
 318                            const unsigned char *addr);
 319         int (*rm_mc_addr)(struct hnae3_handle *handle,
 320                           const unsigned char *addr);
 321
 322         void (*set_tso_stats)(struct hnae3_handle *handle, int enable);
 323         void (*update_stats)(struct hnae3_handle *handle,
 324                              struct net_device_stats *net_stats);
 325         void (*get_stats)(struct hnae3_handle *handle, u64 *data);
 326
 327         void (*get_strings)(struct hnae3_handle *handle,
 328                             u32 stringset, u8 *data);
 329         int (*get_sset_count)(struct hnae3_handle *handle, int stringset);
 330
 331         void (*get_regs)(struct hnae3_handle *handle, void *data);
 332         int (*get_regs_len)(struct hnae3_handle *handle);
 333
 334         u32 (*get_rss_key_size)(struct hnae3_handle *handle);
 335         u32 (*get_rss_indir_size)(struct hnae3_handle *handle);
 336         int (*get_rss)(struct hnae3_handle *handle, u32 *indir, u8 *key,
 337                        u8 *hfunc);
 338         int (*set_rss)(struct hnae3_handle *handle, const u32 *indir,
 339                        const u8 *key, const u8 hfunc);
 340
 341         int (*get_tc_size)(struct hnae3_handle *handle);
 342
 343         int (*get_vector)(struct hnae3_handle *handle, u16 vector_num,
 344                           struct hnae3_vector_info *vector_info);
 345         int (*map_ring_to_vector)(struct hnae3_handle *handle,
 346                                   int vector_num,
 347                                   struct hnae3_ring_chain_node *vr_chain);
 348         int (*unmap_ring_from_vector)(struct hnae3_handle *handle,
 349                                       int vector_num,
 350                                       struct hnae3_ring_chain_node *vr_chain);
 351
 352         int (*add_tunnel_udp)(struct hnae3_handle *handle, u16 port_num);
 353         int (*del_tunnel_udp)(struct hnae3_handle *handle, u16 port_num);
 354
 355         void (*reset_queue)(struct hnae3_handle *handle, u16 queue_id);
 356         u32 (*get_fw_version)(struct hnae3_handle *handle);
 357         void (*get_mdix_mode)(struct hnae3_handle *handle,
 358                               u8 *tp_mdix_ctrl, u8 *tp_mdix);
 359
 360         int (*set_vlan_filter)(struct hnae3_handle *handle, __be16 proto,
 361                                u16 vlan_id, bool is_kill);
 362         int (*set_vf_vlan_filter)(struct hnae3_handle *handle, int vfid,
 363                                   u16 vlan, u8 qos, __be16 proto);
 364 };
 365
 366 struct hnae3_ae_algo {
 367         const struct hnae3_ae_ops *ops;
 368         struct list_head node;
 369         char name[HNAE3_CLASS_NAME_SIZE];
 370         const struct pci_device_id *pdev_id_table;
 371 };
 372
 373 #define HNAE3_INT_NAME_LEN        (IFNAMSIZ + 16)
 374 #define HNAE3_ITR_COUNTDOWN_START 100
 375
 376 struct hnae3_tc_info {
 377         u16     tqp_offset;     /* TQP offset from base TQP */
 378         u16     tqp_count;      /* Total TQPs */
 379         u8      tc;             /* TC index */
 380         bool    enable;         /* If this TC is enable or not */
 381 };
 382
 383 #define HNAE3_MAX_TC            8
 384 #define HNAE3_MAX_USER_PRIO     8
 385 struct hnae3_knic_private_info {
 386         struct net_device *netdev; /* Set by KNIC client when init instance */
 387         u16 rss_size;              /* Allocated RSS queues */
 388         u16 rx_buf_len;
 389         u16 num_desc;
 390
 391         u8 num_tc;                 /* Total number of enabled TCs */
 392         u8 prio_tc[HNAE3_MAX_USER_PRIO];  /* TC indexed by prio */
 393         struct hnae3_tc_info tc_info[HNAE3_MAX_TC]; /* Idx of array is HW TC */
 394
 395         u16 num_tqps;             /* total number of TQPs in this handle */
 396         struct hnae3_queue **tqp;  /* array base of all TQPs in this instance */
 397 };
 398
 399 struct hnae3_roce_private_info {
 400         struct net_device *netdev;
 401         void __iomem *roce_io_base;
 402         int base_vector;
 403         int num_vectors;
 404 };
 405
 406 struct hnae3_unic_private_info {
 407         struct net_device *netdev;
 408         u16 rx_buf_len;
 409         u16 num_desc;
 410         u16 num_tqps;   /* total number of tqps in this handle */
 411         struct hnae3_queue **tqp;  /* array base of all TQPs of this instance */
 412 };
 413
 414 #define HNAE3_SUPPORT_MAC_LOOPBACK    1
 415 #define HNAE3_SUPPORT_PHY_LOOPBACK    2
 416 #define HNAE3_SUPPORT_SERDES_LOOPBACK 4
 417
 418 struct hnae3_handle {
 419         struct hnae3_client *client;
 420         struct pci_dev *pdev;
 421         void *priv;
 422         struct hnae3_ae_algo *ae_algo;  /* the class who provides this handle */
 423         u64 flags; /* Indicate the capabilities for this handle*/
 424
 425         union {
 426                 struct net_device *netdev; /* first member */
 427                 struct hnae3_knic_private_info kinfo;
 428                 struct hnae3_unic_private_info uinfo;
 429                 struct hnae3_roce_private_info rinfo;
 430         };
 431
 432         u32 numa_node_mask;     /* for multi-chip support */
 433 };
 434
 435 #define hnae_set_field(origin, mask, shift, val) \
 436         do { \
 437                 (origin) &= (~(mask)); \
 438                 (origin) |= ((val) << (shift)) & (mask); \
 439         } while (0)
 440 #define hnae_get_field(origin, mask, shift) (((origin) & (mask)) >> (shift))
 441
 442 #define hnae_set_bit(origin, shift, val) \
 443         hnae_set_field((origin), (0x1 << (shift)), (shift), (val))
 444 #define hnae_get_bit(origin, shift) \
 445         hnae_get_field((origin), (0x1 << (shift)), (shift))
 446
 447 int hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev);
 448 void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev);
 449
 450 void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo);
 451 int hnae3_register_ae_algo(struct hnae3_ae_algo *ae_algo);
 452
 453 void hnae3_unregister_client(struct hnae3_client *client);
 454 int hnae3_register_client(struct hnae3_client *client);
 455 #endif