root/drivers/net/ethernet/mellanox/mlx5/core/en.h

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INCLUDED FROM


DEFINITIONS

This source file includes following definitions.
  1. mlx5e_get_num_lag_ports
  2. mlx5_min_rx_wqes
  3. mlx5e_get_max_num_channels
  4. mlx5e_rqwq_get_size
  5. mlx5e_rqwq_get_cur_sz
  6. mlx5_tx_swp_supported

   1 /*
   2  * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32 #ifndef __MLX5_EN_H__
  33 #define __MLX5_EN_H__
  34 
  35 #include <linux/if_vlan.h>
  36 #include <linux/etherdevice.h>
  37 #include <linux/timecounter.h>
  38 #include <linux/net_tstamp.h>
  39 #include <linux/ptp_clock_kernel.h>
  40 #include <linux/crash_dump.h>
  41 #include <linux/mlx5/driver.h>
  42 #include <linux/mlx5/qp.h>
  43 #include <linux/mlx5/cq.h>
  44 #include <linux/mlx5/port.h>
  45 #include <linux/mlx5/vport.h>
  46 #include <linux/mlx5/transobj.h>
  47 #include <linux/mlx5/fs.h>
  48 #include <linux/rhashtable.h>
  49 #include <net/switchdev.h>
  50 #include <net/xdp.h>
  51 #include <linux/dim.h>
  52 #include <linux/bits.h>
  53 #include "wq.h"
  54 #include "mlx5_core.h"
  55 #include "en_stats.h"
  56 #include "en/fs.h"
  57 #include "lib/hv_vhca.h"
  58 
  59 extern const struct net_device_ops mlx5e_netdev_ops;
  60 struct page_pool;
  61 
  62 #define MLX5E_METADATA_ETHER_TYPE (0x8CE4)
  63 #define MLX5E_METADATA_ETHER_LEN 8
  64 
  65 #define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v)
  66 
  67 #define MLX5E_ETH_HARD_MTU (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN)
  68 
  69 #define MLX5E_HW2SW_MTU(params, hwmtu) ((hwmtu) - ((params)->hard_mtu))
  70 #define MLX5E_SW2HW_MTU(params, swmtu) ((swmtu) + ((params)->hard_mtu))
  71 
  72 #define MLX5E_MAX_PRIORITY      8
  73 #define MLX5E_MAX_DSCP          64
  74 #define MLX5E_MAX_NUM_TC        8
  75 
  76 #define MLX5_RX_HEADROOM NET_SKB_PAD
  77 #define MLX5_SKB_FRAG_SZ(len)   (SKB_DATA_ALIGN(len) +  \
  78                                  SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
  79 
  80 #define MLX5E_RX_MAX_HEAD (256)
  81 
  82 #define MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(mdev) \
  83         (6 + MLX5_CAP_GEN(mdev, cache_line_128byte)) /* HW restriction */
  84 #define MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, req) \
  85         max_t(u32, MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(mdev), req)
  86 #define MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(mdev) \
  87         MLX5_MPWRQ_LOG_STRIDE_SZ(mdev, order_base_2(MLX5E_RX_MAX_HEAD))
  88 
  89 #define MLX5_MPWRQ_LOG_WQE_SZ                   18
  90 #define MLX5_MPWRQ_WQE_PAGE_ORDER  (MLX5_MPWRQ_LOG_WQE_SZ - PAGE_SHIFT > 0 ? \
  91                                     MLX5_MPWRQ_LOG_WQE_SZ - PAGE_SHIFT : 0)
  92 #define MLX5_MPWRQ_PAGES_PER_WQE                BIT(MLX5_MPWRQ_WQE_PAGE_ORDER)
  93 
  94 #define MLX5_MTT_OCTW(npages) (ALIGN(npages, 8) / 2)
  95 #define MLX5E_REQUIRED_WQE_MTTS         (ALIGN(MLX5_MPWRQ_PAGES_PER_WQE, 8))
  96 #define MLX5E_LOG_ALIGNED_MPWQE_PPW     (ilog2(MLX5E_REQUIRED_WQE_MTTS))
  97 #define MLX5E_REQUIRED_MTTS(wqes)       (wqes * MLX5E_REQUIRED_WQE_MTTS)
  98 #define MLX5E_MAX_RQ_NUM_MTTS   \
  99         ((1 << 16) * 2) /* So that MLX5_MTT_OCTW(num_mtts) fits into u16 */
 100 #define MLX5E_ORDER2_MAX_PACKET_MTU (order_base_2(10 * 1024))
 101 #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW    \
 102                 (ilog2(MLX5E_MAX_RQ_NUM_MTTS / MLX5E_REQUIRED_WQE_MTTS))
 103 #define MLX5E_LOG_MAX_RQ_NUM_PACKETS_MPW \
 104         (MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW + \
 105          (MLX5_MPWRQ_LOG_WQE_SZ - MLX5E_ORDER2_MAX_PACKET_MTU))
 106 
 107 #define MLX5E_MIN_SKB_FRAG_SZ           (MLX5_SKB_FRAG_SZ(MLX5_RX_HEADROOM))
 108 #define MLX5E_LOG_MAX_RX_WQE_BULK       \
 109         (ilog2(PAGE_SIZE / roundup_pow_of_two(MLX5E_MIN_SKB_FRAG_SZ)))
 110 
 111 #define MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE                0x6
 112 #define MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE                0xa
 113 #define MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE                0xd
 114 
 115 #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE (1 + MLX5E_LOG_MAX_RX_WQE_BULK)
 116 #define MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE                0xa
 117 #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE min_t(u8, 0xd, \
 118                                                MLX5E_LOG_MAX_RQ_NUM_PACKETS_MPW)
 119 
 120 #define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW            0x2
 121 
 122 #define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ                 (64 * 1024)
 123 #define MLX5E_DEFAULT_LRO_TIMEOUT                       32
 124 #define MLX5E_LRO_TIMEOUT_ARR_SIZE                      4
 125 
 126 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC      0x10
 127 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE 0x3
 128 #define MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS      0x20
 129 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC      0x10
 130 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC_FROM_CQE 0x10
 131 #define MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS      0x20
 132 #define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES                0x80
 133 #define MLX5E_PARAMS_DEFAULT_MIN_RX_WQES_MPW            0x2
 134 
 135 #define MLX5E_LOG_INDIR_RQT_SIZE       0x7
 136 #define MLX5E_INDIR_RQT_SIZE           BIT(MLX5E_LOG_INDIR_RQT_SIZE)
 137 #define MLX5E_MIN_NUM_CHANNELS         0x1
 138 #define MLX5E_MAX_NUM_CHANNELS         (MLX5E_INDIR_RQT_SIZE >> 1)
 139 #define MLX5E_MAX_NUM_SQS              (MLX5E_MAX_NUM_CHANNELS * MLX5E_MAX_NUM_TC)
 140 #define MLX5E_TX_CQ_POLL_BUDGET        128
 141 #define MLX5E_TX_XSK_POLL_BUDGET       64
 142 #define MLX5E_SQ_RECOVER_MIN_INTERVAL  500 /* msecs */
 143 
 144 #define MLX5E_UMR_WQE_INLINE_SZ \
 145         (sizeof(struct mlx5e_umr_wqe) + \
 146          ALIGN(MLX5_MPWRQ_PAGES_PER_WQE * sizeof(struct mlx5_mtt), \
 147                MLX5_UMR_MTT_ALIGNMENT))
 148 #define MLX5E_UMR_WQEBBS \
 149         (DIV_ROUND_UP(MLX5E_UMR_WQE_INLINE_SZ, MLX5_SEND_WQE_BB))
 150 
 151 #define MLX5E_MSG_LEVEL                 NETIF_MSG_LINK
 152 
 153 #define mlx5e_dbg(mlevel, priv, format, ...)                    \
 154 do {                                                            \
 155         if (NETIF_MSG_##mlevel & (priv)->msglevel)              \
 156                 netdev_warn(priv->netdev, format,               \
 157                             ##__VA_ARGS__);                     \
 158 } while (0)
 159 
 160 enum mlx5e_rq_group {
 161         MLX5E_RQ_GROUP_REGULAR,
 162         MLX5E_RQ_GROUP_XSK,
 163 #define MLX5E_NUM_RQ_GROUPS(g) (1 + MLX5E_RQ_GROUP_##g)
 164 };
 165 
 166 static inline u8 mlx5e_get_num_lag_ports(struct mlx5_core_dev *mdev)
 167 {
 168         if (mlx5_lag_is_lacp_owner(mdev))
 169                 return 1;
 170 
 171         return clamp_t(u8, MLX5_CAP_GEN(mdev, num_lag_ports), 1, MLX5_MAX_PORTS);
 172 }
 173 
 174 static inline u16 mlx5_min_rx_wqes(int wq_type, u32 wq_size)
 175 {
 176         switch (wq_type) {
 177         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
 178                 return min_t(u16, MLX5E_PARAMS_DEFAULT_MIN_RX_WQES_MPW,
 179                              wq_size / 2);
 180         default:
 181                 return min_t(u16, MLX5E_PARAMS_DEFAULT_MIN_RX_WQES,
 182                              wq_size / 2);
 183         }
 184 }
 185 
 186 /* Use this function to get max num channels (rxqs/txqs) only to create netdev */
 187 static inline int mlx5e_get_max_num_channels(struct mlx5_core_dev *mdev)
 188 {
 189         return is_kdump_kernel() ?
 190                 MLX5E_MIN_NUM_CHANNELS :
 191                 min_t(int, mlx5_comp_vectors_count(mdev), MLX5E_MAX_NUM_CHANNELS);
 192 }
 193 
 194 struct mlx5e_tx_wqe {
 195         struct mlx5_wqe_ctrl_seg ctrl;
 196         union {
 197                 struct {
 198                         struct mlx5_wqe_eth_seg  eth;
 199                         struct mlx5_wqe_data_seg data[0];
 200                 };
 201                 u8 tls_progress_params_ctx[0];
 202         };
 203 };
 204 
 205 struct mlx5e_rx_wqe_ll {
 206         struct mlx5_wqe_srq_next_seg  next;
 207         struct mlx5_wqe_data_seg      data[0];
 208 };
 209 
 210 struct mlx5e_rx_wqe_cyc {
 211         struct mlx5_wqe_data_seg      data[0];
 212 };
 213 
 214 struct mlx5e_umr_wqe {
 215         struct mlx5_wqe_ctrl_seg       ctrl;
 216         struct mlx5_wqe_umr_ctrl_seg   uctrl;
 217         struct mlx5_mkey_seg           mkc;
 218         union {
 219                 struct mlx5_mtt        inline_mtts[0];
 220                 u8                     tls_static_params_ctx[0];
 221         };
 222 };
 223 
 224 extern const char mlx5e_self_tests[][ETH_GSTRING_LEN];
 225 
 226 enum mlx5e_priv_flag {
 227         MLX5E_PFLAG_RX_CQE_BASED_MODER,
 228         MLX5E_PFLAG_TX_CQE_BASED_MODER,
 229         MLX5E_PFLAG_RX_CQE_COMPRESS,
 230         MLX5E_PFLAG_RX_STRIDING_RQ,
 231         MLX5E_PFLAG_RX_NO_CSUM_COMPLETE,
 232         MLX5E_PFLAG_XDP_TX_MPWQE,
 233         MLX5E_NUM_PFLAGS, /* Keep last */
 234 };
 235 
 236 #define MLX5E_SET_PFLAG(params, pflag, enable)                  \
 237         do {                                                    \
 238                 if (enable)                                     \
 239                         (params)->pflags |= BIT(pflag);         \
 240                 else                                            \
 241                         (params)->pflags &= ~(BIT(pflag));      \
 242         } while (0)
 243 
 244 #define MLX5E_GET_PFLAG(params, pflag) (!!((params)->pflags & (BIT(pflag))))
 245 
 246 #ifdef CONFIG_MLX5_CORE_EN_DCB
 247 #define MLX5E_MAX_BW_ALLOC 100 /* Max percentage of BW allocation */
 248 #endif
 249 
 250 struct mlx5e_params {
 251         u8  log_sq_size;
 252         u8  rq_wq_type;
 253         u8  log_rq_mtu_frames;
 254         u16 num_channels;
 255         u8  num_tc;
 256         bool rx_cqe_compress_def;
 257         bool tunneled_offload_en;
 258         struct dim_cq_moder rx_cq_moderation;
 259         struct dim_cq_moder tx_cq_moderation;
 260         bool lro_en;
 261         u8  tx_min_inline_mode;
 262         bool vlan_strip_disable;
 263         bool scatter_fcs_en;
 264         bool rx_dim_enabled;
 265         bool tx_dim_enabled;
 266         u32 lro_timeout;
 267         u32 pflags;
 268         struct bpf_prog *xdp_prog;
 269         struct mlx5e_xsk *xsk;
 270         unsigned int sw_mtu;
 271         int hard_mtu;
 272 };
 273 
 274 #ifdef CONFIG_MLX5_CORE_EN_DCB
 275 struct mlx5e_cee_config {
 276         /* bw pct for priority group */
 277         u8                         pg_bw_pct[CEE_DCBX_MAX_PGS];
 278         u8                         prio_to_pg_map[CEE_DCBX_MAX_PRIO];
 279         bool                       pfc_setting[CEE_DCBX_MAX_PRIO];
 280         bool                       pfc_enable;
 281 };
 282 
 283 enum {
 284         MLX5_DCB_CHG_RESET,
 285         MLX5_DCB_NO_CHG,
 286         MLX5_DCB_CHG_NO_RESET,
 287 };
 288 
 289 struct mlx5e_dcbx {
 290         enum mlx5_dcbx_oper_mode   mode;
 291         struct mlx5e_cee_config    cee_cfg; /* pending configuration */
 292         u8                         dscp_app_cnt;
 293 
 294         /* The only setting that cannot be read from FW */
 295         u8                         tc_tsa[IEEE_8021QAZ_MAX_TCS];
 296         u8                         cap;
 297 
 298         /* Buffer configuration */
 299         bool                       manual_buffer;
 300         u32                        cable_len;
 301         u32                        xoff;
 302 };
 303 
 304 struct mlx5e_dcbx_dp {
 305         u8                         dscp2prio[MLX5E_MAX_DSCP];
 306         u8                         trust_state;
 307 };
 308 #endif
 309 
 310 enum {
 311         MLX5E_RQ_STATE_ENABLED,
 312         MLX5E_RQ_STATE_RECOVERING,
 313         MLX5E_RQ_STATE_AM,
 314         MLX5E_RQ_STATE_NO_CSUM_COMPLETE,
 315         MLX5E_RQ_STATE_CSUM_FULL, /* cqe_csum_full hw bit is set */
 316 };
 317 
 318 struct mlx5e_cq {
 319         /* data path - accessed per cqe */
 320         struct mlx5_cqwq           wq;
 321 
 322         /* data path - accessed per napi poll */
 323         u16                        event_ctr;
 324         struct napi_struct        *napi;
 325         struct mlx5_core_cq        mcq;
 326         struct mlx5e_channel      *channel;
 327 
 328         /* control */
 329         struct mlx5_core_dev      *mdev;
 330         struct mlx5_wq_ctrl        wq_ctrl;
 331 } ____cacheline_aligned_in_smp;
 332 
 333 struct mlx5e_cq_decomp {
 334         /* cqe decompression */
 335         struct mlx5_cqe64          title;
 336         struct mlx5_mini_cqe8      mini_arr[MLX5_MINI_CQE_ARRAY_SIZE];
 337         u8                         mini_arr_idx;
 338         u16                        left;
 339         u16                        wqe_counter;
 340 } ____cacheline_aligned_in_smp;
 341 
 342 struct mlx5e_tx_wqe_info {
 343         struct sk_buff *skb;
 344         u32 num_bytes;
 345         u8  num_wqebbs;
 346         u8  num_dma;
 347 #ifdef CONFIG_MLX5_EN_TLS
 348         struct page *resync_dump_frag_page;
 349 #endif
 350 };
 351 
 352 enum mlx5e_dma_map_type {
 353         MLX5E_DMA_MAP_SINGLE,
 354         MLX5E_DMA_MAP_PAGE
 355 };
 356 
 357 struct mlx5e_sq_dma {
 358         dma_addr_t              addr;
 359         u32                     size;
 360         enum mlx5e_dma_map_type type;
 361 };
 362 
 363 enum {
 364         MLX5E_SQ_STATE_ENABLED,
 365         MLX5E_SQ_STATE_RECOVERING,
 366         MLX5E_SQ_STATE_IPSEC,
 367         MLX5E_SQ_STATE_AM,
 368         MLX5E_SQ_STATE_TLS,
 369         MLX5E_SQ_STATE_VLAN_NEED_L2_INLINE,
 370         MLX5E_SQ_STATE_PENDING_XSK_TX,
 371 };
 372 
 373 struct mlx5e_sq_wqe_info {
 374         u8  opcode;
 375         u8 num_wqebbs;
 376 
 377         /* Auxiliary data for different opcodes. */
 378         union {
 379                 struct {
 380                         struct mlx5e_rq *rq;
 381                 } umr;
 382         };
 383 };
 384 
 385 struct mlx5e_txqsq {
 386         /* data path */
 387 
 388         /* dirtied @completion */
 389         u16                        cc;
 390         u32                        dma_fifo_cc;
 391         struct dim                 dim; /* Adaptive Moderation */
 392 
 393         /* dirtied @xmit */
 394         u16                        pc ____cacheline_aligned_in_smp;
 395         u32                        dma_fifo_pc;
 396 
 397         struct mlx5e_cq            cq;
 398 
 399         /* read only */
 400         struct mlx5_wq_cyc         wq;
 401         u32                        dma_fifo_mask;
 402         struct mlx5e_sq_stats     *stats;
 403         struct {
 404                 struct mlx5e_sq_dma       *dma_fifo;
 405                 struct mlx5e_tx_wqe_info  *wqe_info;
 406         } db;
 407         void __iomem              *uar_map;
 408         struct netdev_queue       *txq;
 409         u32                        sqn;
 410         u16                        stop_room;
 411         u8                         min_inline_mode;
 412         struct device             *pdev;
 413         __be32                     mkey_be;
 414         unsigned long              state;
 415         unsigned int               hw_mtu;
 416         struct hwtstamp_config    *tstamp;
 417         struct mlx5_clock         *clock;
 418 
 419         /* control path */
 420         struct mlx5_wq_ctrl        wq_ctrl;
 421         struct mlx5e_channel      *channel;
 422         int                        ch_ix;
 423         int                        txq_ix;
 424         u32                        rate_limit;
 425         struct work_struct         recover_work;
 426 } ____cacheline_aligned_in_smp;
 427 
 428 struct mlx5e_dma_info {
 429         dma_addr_t addr;
 430         union {
 431                 struct page *page;
 432                 struct {
 433                         u64 handle;
 434                         void *data;
 435                 } xsk;
 436         };
 437 };
 438 
 439 /* XDP packets can be transmitted in different ways. On completion, we need to
 440  * distinguish between them to clean up things in a proper way.
 441  */
 442 enum mlx5e_xdp_xmit_mode {
 443         /* An xdp_frame was transmitted due to either XDP_REDIRECT from another
 444          * device or XDP_TX from an XSK RQ. The frame has to be unmapped and
 445          * returned.
 446          */
 447         MLX5E_XDP_XMIT_MODE_FRAME,
 448 
 449         /* The xdp_frame was created in place as a result of XDP_TX from a
 450          * regular RQ. No DMA remapping happened, and the page belongs to us.
 451          */
 452         MLX5E_XDP_XMIT_MODE_PAGE,
 453 
 454         /* No xdp_frame was created at all, the transmit happened from a UMEM
 455          * page. The UMEM Completion Ring producer pointer has to be increased.
 456          */
 457         MLX5E_XDP_XMIT_MODE_XSK,
 458 };
 459 
 460 struct mlx5e_xdp_info {
 461         enum mlx5e_xdp_xmit_mode mode;
 462         union {
 463                 struct {
 464                         struct xdp_frame *xdpf;
 465                         dma_addr_t dma_addr;
 466                 } frame;
 467                 struct {
 468                         struct mlx5e_rq *rq;
 469                         struct mlx5e_dma_info di;
 470                 } page;
 471         };
 472 };
 473 
 474 struct mlx5e_xdp_xmit_data {
 475         dma_addr_t  dma_addr;
 476         void       *data;
 477         u32         len;
 478 };
 479 
 480 struct mlx5e_xdp_info_fifo {
 481         struct mlx5e_xdp_info *xi;
 482         u32 *cc;
 483         u32 *pc;
 484         u32 mask;
 485 };
 486 
 487 struct mlx5e_xdp_wqe_info {
 488         u8 num_wqebbs;
 489         u8 num_pkts;
 490 };
 491 
 492 struct mlx5e_xdp_mpwqe {
 493         /* Current MPWQE session */
 494         struct mlx5e_tx_wqe *wqe;
 495         u8                   ds_count;
 496         u8                   pkt_count;
 497         u8                   inline_on;
 498 };
 499 
 500 struct mlx5e_xdpsq;
 501 typedef int (*mlx5e_fp_xmit_xdp_frame_check)(struct mlx5e_xdpsq *);
 502 typedef bool (*mlx5e_fp_xmit_xdp_frame)(struct mlx5e_xdpsq *,
 503                                         struct mlx5e_xdp_xmit_data *,
 504                                         struct mlx5e_xdp_info *,
 505                                         int);
 506 
 507 struct mlx5e_xdpsq {
 508         /* data path */
 509 
 510         /* dirtied @completion */
 511         u32                        xdpi_fifo_cc;
 512         u16                        cc;
 513 
 514         /* dirtied @xmit */
 515         u32                        xdpi_fifo_pc ____cacheline_aligned_in_smp;
 516         u16                        pc;
 517         struct mlx5_wqe_ctrl_seg   *doorbell_cseg;
 518         struct mlx5e_xdp_mpwqe     mpwqe;
 519 
 520         struct mlx5e_cq            cq;
 521 
 522         /* read only */
 523         struct xdp_umem           *umem;
 524         struct mlx5_wq_cyc         wq;
 525         struct mlx5e_xdpsq_stats  *stats;
 526         mlx5e_fp_xmit_xdp_frame_check xmit_xdp_frame_check;
 527         mlx5e_fp_xmit_xdp_frame    xmit_xdp_frame;
 528         struct {
 529                 struct mlx5e_xdp_wqe_info *wqe_info;
 530                 struct mlx5e_xdp_info_fifo xdpi_fifo;
 531         } db;
 532         void __iomem              *uar_map;
 533         u32                        sqn;
 534         struct device             *pdev;
 535         __be32                     mkey_be;
 536         u8                         min_inline_mode;
 537         unsigned long              state;
 538         unsigned int               hw_mtu;
 539 
 540         /* control path */
 541         struct mlx5_wq_ctrl        wq_ctrl;
 542         struct mlx5e_channel      *channel;
 543 } ____cacheline_aligned_in_smp;
 544 
 545 struct mlx5e_icosq {
 546         /* data path */
 547         u16                        cc;
 548         u16                        pc;
 549 
 550         struct mlx5_wqe_ctrl_seg  *doorbell_cseg;
 551         struct mlx5e_cq            cq;
 552 
 553         /* write@xmit, read@completion */
 554         struct {
 555                 struct mlx5e_sq_wqe_info *ico_wqe;
 556         } db;
 557 
 558         /* read only */
 559         struct mlx5_wq_cyc         wq;
 560         void __iomem              *uar_map;
 561         u32                        sqn;
 562         unsigned long              state;
 563 
 564         /* control path */
 565         struct mlx5_wq_ctrl        wq_ctrl;
 566         struct mlx5e_channel      *channel;
 567 
 568         struct work_struct         recover_work;
 569 } ____cacheline_aligned_in_smp;
 570 
 571 struct mlx5e_wqe_frag_info {
 572         struct mlx5e_dma_info *di;
 573         u32 offset;
 574         bool last_in_page;
 575 };
 576 
 577 struct mlx5e_umr_dma_info {
 578         struct mlx5e_dma_info  dma_info[MLX5_MPWRQ_PAGES_PER_WQE];
 579 };
 580 
 581 struct mlx5e_mpw_info {
 582         struct mlx5e_umr_dma_info umr;
 583         u16 consumed_strides;
 584         DECLARE_BITMAP(xdp_xmit_bitmap, MLX5_MPWRQ_PAGES_PER_WQE);
 585 };
 586 
 587 #define MLX5E_MAX_RX_FRAGS 4
 588 
 589 /* a single cache unit is capable to serve one napi call (for non-striding rq)
 590  * or a MPWQE (for striding rq).
 591  */
 592 #define MLX5E_CACHE_UNIT        (MLX5_MPWRQ_PAGES_PER_WQE > NAPI_POLL_WEIGHT ? \
 593                                  MLX5_MPWRQ_PAGES_PER_WQE : NAPI_POLL_WEIGHT)
 594 #define MLX5E_CACHE_SIZE        (4 * roundup_pow_of_two(MLX5E_CACHE_UNIT))
 595 struct mlx5e_page_cache {
 596         u32 head;
 597         u32 tail;
 598         struct mlx5e_dma_info page_cache[MLX5E_CACHE_SIZE];
 599 };
 600 
 601 struct mlx5e_rq;
 602 typedef void (*mlx5e_fp_handle_rx_cqe)(struct mlx5e_rq*, struct mlx5_cqe64*);
 603 typedef struct sk_buff *
 604 (*mlx5e_fp_skb_from_cqe_mpwrq)(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
 605                                u16 cqe_bcnt, u32 head_offset, u32 page_idx);
 606 typedef struct sk_buff *
 607 (*mlx5e_fp_skb_from_cqe)(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe,
 608                          struct mlx5e_wqe_frag_info *wi, u32 cqe_bcnt);
 609 typedef bool (*mlx5e_fp_post_rx_wqes)(struct mlx5e_rq *rq);
 610 typedef void (*mlx5e_fp_dealloc_wqe)(struct mlx5e_rq*, u16);
 611 
 612 enum mlx5e_rq_flag {
 613         MLX5E_RQ_FLAG_XDP_XMIT,
 614         MLX5E_RQ_FLAG_XDP_REDIRECT,
 615 };
 616 
 617 struct mlx5e_rq_frag_info {
 618         int frag_size;
 619         int frag_stride;
 620 };
 621 
 622 struct mlx5e_rq_frags_info {
 623         struct mlx5e_rq_frag_info arr[MLX5E_MAX_RX_FRAGS];
 624         u8 num_frags;
 625         u8 log_num_frags;
 626         u8 wqe_bulk;
 627 };
 628 
 629 struct mlx5e_rq {
 630         /* data path */
 631         union {
 632                 struct {
 633                         struct mlx5_wq_cyc          wq;
 634                         struct mlx5e_wqe_frag_info *frags;
 635                         struct mlx5e_dma_info      *di;
 636                         struct mlx5e_rq_frags_info  info;
 637                         mlx5e_fp_skb_from_cqe       skb_from_cqe;
 638                 } wqe;
 639                 struct {
 640                         struct mlx5_wq_ll      wq;
 641                         struct mlx5e_umr_wqe   umr_wqe;
 642                         struct mlx5e_mpw_info *info;
 643                         mlx5e_fp_skb_from_cqe_mpwrq skb_from_cqe_mpwrq;
 644                         u16                    num_strides;
 645                         u16                    actual_wq_head;
 646                         u8                     log_stride_sz;
 647                         u8                     umr_in_progress;
 648                         u8                     umr_last_bulk;
 649                         u8                     umr_completed;
 650                 } mpwqe;
 651         };
 652         struct {
 653                 u16            umem_headroom;
 654                 u16            headroom;
 655                 u8             map_dir;   /* dma map direction */
 656         } buff;
 657 
 658         struct mlx5e_channel  *channel;
 659         struct device         *pdev;
 660         struct net_device     *netdev;
 661         struct mlx5e_rq_stats *stats;
 662         struct mlx5e_cq        cq;
 663         struct mlx5e_cq_decomp cqd;
 664         struct mlx5e_page_cache page_cache;
 665         struct hwtstamp_config *tstamp;
 666         struct mlx5_clock      *clock;
 667 
 668         mlx5e_fp_handle_rx_cqe handle_rx_cqe;
 669         mlx5e_fp_post_rx_wqes  post_wqes;
 670         mlx5e_fp_dealloc_wqe   dealloc_wqe;
 671 
 672         unsigned long          state;
 673         int                    ix;
 674         unsigned int           hw_mtu;
 675 
 676         struct dim         dim; /* Dynamic Interrupt Moderation */
 677 
 678         /* XDP */
 679         struct bpf_prog       *xdp_prog;
 680         struct mlx5e_xdpsq    *xdpsq;
 681         DECLARE_BITMAP(flags, 8);
 682         struct page_pool      *page_pool;
 683 
 684         /* AF_XDP zero-copy */
 685         struct zero_copy_allocator zca;
 686         struct xdp_umem       *umem;
 687 
 688         struct work_struct     recover_work;
 689 
 690         /* control */
 691         struct mlx5_wq_ctrl    wq_ctrl;
 692         __be32                 mkey_be;
 693         u8                     wq_type;
 694         u32                    rqn;
 695         struct mlx5_core_dev  *mdev;
 696         struct mlx5_core_mkey  umr_mkey;
 697 
 698         /* XDP read-mostly */
 699         struct xdp_rxq_info    xdp_rxq;
 700 } ____cacheline_aligned_in_smp;
 701 
 702 enum mlx5e_channel_state {
 703         MLX5E_CHANNEL_STATE_XSK,
 704         MLX5E_CHANNEL_NUM_STATES
 705 };
 706 
 707 struct mlx5e_channel {
 708         /* data path */
 709         struct mlx5e_rq            rq;
 710         struct mlx5e_xdpsq         rq_xdpsq;
 711         struct mlx5e_txqsq         sq[MLX5E_MAX_NUM_TC];
 712         struct mlx5e_icosq         icosq;   /* internal control operations */
 713         bool                       xdp;
 714         struct napi_struct         napi;
 715         struct device             *pdev;
 716         struct net_device         *netdev;
 717         __be32                     mkey_be;
 718         u8                         num_tc;
 719         u8                         lag_port;
 720 
 721         /* XDP_REDIRECT */
 722         struct mlx5e_xdpsq         xdpsq;
 723 
 724         /* AF_XDP zero-copy */
 725         struct mlx5e_rq            xskrq;
 726         struct mlx5e_xdpsq         xsksq;
 727         struct mlx5e_icosq         xskicosq;
 728         /* xskicosq can be accessed from any CPU - the spinlock protects it. */
 729         spinlock_t                 xskicosq_lock;
 730 
 731         /* data path - accessed per napi poll */
 732         struct irq_desc *irq_desc;
 733         struct mlx5e_ch_stats     *stats;
 734 
 735         /* control */
 736         struct mlx5e_priv         *priv;
 737         struct mlx5_core_dev      *mdev;
 738         struct hwtstamp_config    *tstamp;
 739         DECLARE_BITMAP(state, MLX5E_CHANNEL_NUM_STATES);
 740         int                        ix;
 741         int                        cpu;
 742         cpumask_var_t              xps_cpumask;
 743 };
 744 
 745 struct mlx5e_channels {
 746         struct mlx5e_channel **c;
 747         unsigned int           num;
 748         struct mlx5e_params    params;
 749 };
 750 
 751 struct mlx5e_channel_stats {
 752         struct mlx5e_ch_stats ch;
 753         struct mlx5e_sq_stats sq[MLX5E_MAX_NUM_TC];
 754         struct mlx5e_rq_stats rq;
 755         struct mlx5e_rq_stats xskrq;
 756         struct mlx5e_xdpsq_stats rq_xdpsq;
 757         struct mlx5e_xdpsq_stats xdpsq;
 758         struct mlx5e_xdpsq_stats xsksq;
 759 } ____cacheline_aligned_in_smp;
 760 
 761 enum {
 762         MLX5E_STATE_OPENED,
 763         MLX5E_STATE_DESTROYING,
 764         MLX5E_STATE_XDP_TX_ENABLED,
 765         MLX5E_STATE_XDP_ACTIVE,
 766 };
 767 
 768 struct mlx5e_rqt {
 769         u32              rqtn;
 770         bool             enabled;
 771 };
 772 
 773 struct mlx5e_tir {
 774         u32               tirn;
 775         struct mlx5e_rqt  rqt;
 776         struct list_head  list;
 777 };
 778 
 779 enum {
 780         MLX5E_TC_PRIO = 0,
 781         MLX5E_NIC_PRIO
 782 };
 783 
 784 struct mlx5e_rss_params {
 785         u32     indirection_rqt[MLX5E_INDIR_RQT_SIZE];
 786         u32     rx_hash_fields[MLX5E_NUM_INDIR_TIRS];
 787         u8      toeplitz_hash_key[40];
 788         u8      hfunc;
 789 };
 790 
 791 struct mlx5e_modify_sq_param {
 792         int curr_state;
 793         int next_state;
 794         int rl_update;
 795         int rl_index;
 796 };
 797 
 798 #if IS_ENABLED(CONFIG_PCI_HYPERV_INTERFACE)
 799 struct mlx5e_hv_vhca_stats_agent {
 800         struct mlx5_hv_vhca_agent *agent;
 801         struct delayed_work        work;
 802         u16                        delay;
 803         void                      *buf;
 804 };
 805 #endif
 806 
 807 struct mlx5e_xsk {
 808         /* UMEMs are stored separately from channels, because we don't want to
 809          * lose them when channels are recreated. The kernel also stores UMEMs,
 810          * but it doesn't distinguish between zero-copy and non-zero-copy UMEMs,
 811          * so rely on our mechanism.
 812          */
 813         struct xdp_umem **umems;
 814         u16 refcnt;
 815         bool ever_used;
 816 };
 817 
 818 struct mlx5e_priv {
 819         /* priv data path fields - start */
 820         struct mlx5e_txqsq *txq2sq[MLX5E_MAX_NUM_CHANNELS * MLX5E_MAX_NUM_TC];
 821         int channel_tc2realtxq[MLX5E_MAX_NUM_CHANNELS][MLX5E_MAX_NUM_TC];
 822 #ifdef CONFIG_MLX5_CORE_EN_DCB
 823         struct mlx5e_dcbx_dp       dcbx_dp;
 824 #endif
 825         /* priv data path fields - end */
 826 
 827         u32                        msglevel;
 828         unsigned long              state;
 829         struct mutex               state_lock; /* Protects Interface state */
 830         struct mlx5e_rq            drop_rq;
 831 
 832         struct mlx5e_channels      channels;
 833         u32                        tisn[MLX5_MAX_PORTS][MLX5E_MAX_NUM_TC];
 834         struct mlx5e_rqt           indir_rqt;
 835         struct mlx5e_tir           indir_tir[MLX5E_NUM_INDIR_TIRS];
 836         struct mlx5e_tir           inner_indir_tir[MLX5E_NUM_INDIR_TIRS];
 837         struct mlx5e_tir           direct_tir[MLX5E_MAX_NUM_CHANNELS];
 838         struct mlx5e_tir           xsk_tir[MLX5E_MAX_NUM_CHANNELS];
 839         struct mlx5e_rss_params    rss_params;
 840         u32                        tx_rates[MLX5E_MAX_NUM_SQS];
 841 
 842         struct mlx5e_flow_steering fs;
 843 
 844         struct workqueue_struct    *wq;
 845         struct work_struct         update_carrier_work;
 846         struct work_struct         set_rx_mode_work;
 847         struct work_struct         tx_timeout_work;
 848         struct work_struct         update_stats_work;
 849         struct work_struct         monitor_counters_work;
 850         struct mlx5_nb             monitor_counters_nb;
 851 
 852         struct mlx5_core_dev      *mdev;
 853         struct net_device         *netdev;
 854         struct mlx5e_stats         stats;
 855         struct mlx5e_channel_stats channel_stats[MLX5E_MAX_NUM_CHANNELS];
 856         u16                        max_nch;
 857         u8                         max_opened_tc;
 858         struct hwtstamp_config     tstamp;
 859         u16                        q_counter;
 860         u16                        drop_rq_q_counter;
 861         struct notifier_block      events_nb;
 862 
 863 #ifdef CONFIG_MLX5_CORE_EN_DCB
 864         struct mlx5e_dcbx          dcbx;
 865 #endif
 866 
 867         const struct mlx5e_profile *profile;
 868         void                      *ppriv;
 869 #ifdef CONFIG_MLX5_EN_IPSEC
 870         struct mlx5e_ipsec        *ipsec;
 871 #endif
 872 #ifdef CONFIG_MLX5_EN_TLS
 873         struct mlx5e_tls          *tls;
 874 #endif
 875         struct devlink_health_reporter *tx_reporter;
 876         struct devlink_health_reporter *rx_reporter;
 877         struct mlx5e_xsk           xsk;
 878 #if IS_ENABLED(CONFIG_PCI_HYPERV_INTERFACE)
 879         struct mlx5e_hv_vhca_stats_agent stats_agent;
 880 #endif
 881 };
 882 
 883 struct mlx5e_profile {
 884         int     (*init)(struct mlx5_core_dev *mdev,
 885                         struct net_device *netdev,
 886                         const struct mlx5e_profile *profile, void *ppriv);
 887         void    (*cleanup)(struct mlx5e_priv *priv);
 888         int     (*init_rx)(struct mlx5e_priv *priv);
 889         void    (*cleanup_rx)(struct mlx5e_priv *priv);
 890         int     (*init_tx)(struct mlx5e_priv *priv);
 891         void    (*cleanup_tx)(struct mlx5e_priv *priv);
 892         void    (*enable)(struct mlx5e_priv *priv);
 893         void    (*disable)(struct mlx5e_priv *priv);
 894         int     (*update_rx)(struct mlx5e_priv *priv);
 895         void    (*update_stats)(struct mlx5e_priv *priv);
 896         void    (*update_carrier)(struct mlx5e_priv *priv);
 897         struct {
 898                 mlx5e_fp_handle_rx_cqe handle_rx_cqe;
 899                 mlx5e_fp_handle_rx_cqe handle_rx_cqe_mpwqe;
 900         } rx_handlers;
 901         int     max_tc;
 902         u8      rq_groups;
 903 };
 904 
 905 void mlx5e_build_ptys2ethtool_map(void);
 906 
 907 u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
 908                        struct net_device *sb_dev);
 909 netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev);
 910 netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
 911                           struct mlx5e_tx_wqe *wqe, u16 pi, bool xmit_more);
 912 
 913 void mlx5e_trigger_irq(struct mlx5e_icosq *sq);
 914 void mlx5e_completion_event(struct mlx5_core_cq *mcq, struct mlx5_eqe *eqe);
 915 void mlx5e_cq_error_event(struct mlx5_core_cq *mcq, enum mlx5_event event);
 916 int mlx5e_napi_poll(struct napi_struct *napi, int budget);
 917 bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget);
 918 int mlx5e_poll_rx_cq(struct mlx5e_cq *cq, int budget);
 919 void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq);
 920 
 921 static inline u32 mlx5e_rqwq_get_size(struct mlx5e_rq *rq)
 922 {
 923         switch (rq->wq_type) {
 924         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
 925                 return mlx5_wq_ll_get_size(&rq->mpwqe.wq);
 926         default:
 927                 return mlx5_wq_cyc_get_size(&rq->wqe.wq);
 928         }
 929 }
 930 
 931 static inline u32 mlx5e_rqwq_get_cur_sz(struct mlx5e_rq *rq)
 932 {
 933         switch (rq->wq_type) {
 934         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
 935                 return rq->mpwqe.wq.cur_sz;
 936         default:
 937                 return rq->wqe.wq.cur_sz;
 938         }
 939 }
 940 
 941 bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev);
 942 bool mlx5e_striding_rq_possible(struct mlx5_core_dev *mdev,
 943                                 struct mlx5e_params *params);
 944 
 945 void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info);
 946 void mlx5e_page_release_dynamic(struct mlx5e_rq *rq,
 947                                 struct mlx5e_dma_info *dma_info,
 948                                 bool recycle);
 949 void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
 950 void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
 951 bool mlx5e_post_rx_wqes(struct mlx5e_rq *rq);
 952 int mlx5e_poll_ico_cq(struct mlx5e_cq *cq);
 953 bool mlx5e_post_rx_mpwqes(struct mlx5e_rq *rq);
 954 void mlx5e_dealloc_rx_wqe(struct mlx5e_rq *rq, u16 ix);
 955 void mlx5e_dealloc_rx_mpwqe(struct mlx5e_rq *rq, u16 ix);
 956 struct sk_buff *
 957 mlx5e_skb_from_cqe_mpwrq_linear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
 958                                 u16 cqe_bcnt, u32 head_offset, u32 page_idx);
 959 struct sk_buff *
 960 mlx5e_skb_from_cqe_mpwrq_nonlinear(struct mlx5e_rq *rq, struct mlx5e_mpw_info *wi,
 961                                    u16 cqe_bcnt, u32 head_offset, u32 page_idx);
 962 struct sk_buff *
 963 mlx5e_skb_from_cqe_linear(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe,
 964                           struct mlx5e_wqe_frag_info *wi, u32 cqe_bcnt);
 965 struct sk_buff *
 966 mlx5e_skb_from_cqe_nonlinear(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe,
 967                              struct mlx5e_wqe_frag_info *wi, u32 cqe_bcnt);
 968 
 969 void mlx5e_update_stats(struct mlx5e_priv *priv);
 970 void mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats);
 971 void mlx5e_fold_sw_stats64(struct mlx5e_priv *priv, struct rtnl_link_stats64 *s);
 972 
 973 void mlx5e_init_l2_addr(struct mlx5e_priv *priv);
 974 int mlx5e_self_test_num(struct mlx5e_priv *priv);
 975 void mlx5e_self_test(struct net_device *ndev, struct ethtool_test *etest,
 976                      u64 *buf);
 977 void mlx5e_set_rx_mode_work(struct work_struct *work);
 978 
 979 int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr);
 980 int mlx5e_hwstamp_get(struct mlx5e_priv *priv, struct ifreq *ifr);
 981 int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool val);
 982 
 983 int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto,
 984                           u16 vid);
 985 int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __always_unused __be16 proto,
 986                            u16 vid);
 987 void mlx5e_timestamp_init(struct mlx5e_priv *priv);
 988 
 989 struct mlx5e_redirect_rqt_param {
 990         bool is_rss;
 991         union {
 992                 u32 rqn; /* Direct RQN (Non-RSS) */
 993                 struct {
 994                         u8 hfunc;
 995                         struct mlx5e_channels *channels;
 996                 } rss; /* RSS data */
 997         };
 998 };
 999 
1000 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz,
1001                        struct mlx5e_redirect_rqt_param rrp);
1002 void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_rss_params *rss_params,
1003                                     const struct mlx5e_tirc_config *ttconfig,
1004                                     void *tirc, bool inner);
1005 void mlx5e_modify_tirs_hash(struct mlx5e_priv *priv, void *in, int inlen);
1006 struct mlx5e_tirc_config mlx5e_tirc_get_default_config(enum mlx5e_traffic_types tt);
1007 
1008 struct mlx5e_xsk_param;
1009 
1010 struct mlx5e_rq_param;
1011 int mlx5e_open_rq(struct mlx5e_channel *c, struct mlx5e_params *params,
1012                   struct mlx5e_rq_param *param, struct mlx5e_xsk_param *xsk,
1013                   struct xdp_umem *umem, struct mlx5e_rq *rq);
1014 int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq, int wait_time);
1015 void mlx5e_deactivate_rq(struct mlx5e_rq *rq);
1016 void mlx5e_close_rq(struct mlx5e_rq *rq);
1017 
1018 struct mlx5e_sq_param;
1019 int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
1020                      struct mlx5e_sq_param *param, struct mlx5e_icosq *sq);
1021 void mlx5e_close_icosq(struct mlx5e_icosq *sq);
1022 int mlx5e_open_xdpsq(struct mlx5e_channel *c, struct mlx5e_params *params,
1023                      struct mlx5e_sq_param *param, struct xdp_umem *umem,
1024                      struct mlx5e_xdpsq *sq, bool is_redirect);
1025 void mlx5e_close_xdpsq(struct mlx5e_xdpsq *sq);
1026 
1027 struct mlx5e_cq_param;
1028 int mlx5e_open_cq(struct mlx5e_channel *c, struct dim_cq_moder moder,
1029                   struct mlx5e_cq_param *param, struct mlx5e_cq *cq);
1030 void mlx5e_close_cq(struct mlx5e_cq *cq);
1031 
1032 int mlx5e_open_locked(struct net_device *netdev);
1033 int mlx5e_close_locked(struct net_device *netdev);
1034 
1035 int mlx5e_open_channels(struct mlx5e_priv *priv,
1036                         struct mlx5e_channels *chs);
1037 void mlx5e_close_channels(struct mlx5e_channels *chs);
1038 
1039 /* Function pointer to be used to modify HW or kernel settings while
1040  * switching channels
1041  */
1042 typedef int (*mlx5e_fp_preactivate)(struct mlx5e_priv *priv);
1043 int mlx5e_safe_reopen_channels(struct mlx5e_priv *priv);
1044 int mlx5e_safe_switch_channels(struct mlx5e_priv *priv,
1045                                struct mlx5e_channels *new_chs,
1046                                mlx5e_fp_preactivate preactivate);
1047 int mlx5e_num_channels_changed(struct mlx5e_priv *priv);
1048 void mlx5e_activate_priv_channels(struct mlx5e_priv *priv);
1049 void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv);
1050 
1051 void mlx5e_build_default_indir_rqt(u32 *indirection_rqt, int len,
1052                                    int num_channels);
1053 void mlx5e_set_tx_cq_mode_params(struct mlx5e_params *params,
1054                                  u8 cq_period_mode);
1055 void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params,
1056                                  u8 cq_period_mode);
1057 void mlx5e_set_rq_type(struct mlx5_core_dev *mdev, struct mlx5e_params *params);
1058 void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev,
1059                                struct mlx5e_params *params);
1060 int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state, int next_state);
1061 void mlx5e_activate_rq(struct mlx5e_rq *rq);
1062 void mlx5e_deactivate_rq(struct mlx5e_rq *rq);
1063 void mlx5e_free_rx_descs(struct mlx5e_rq *rq);
1064 void mlx5e_free_rx_in_progress_descs(struct mlx5e_rq *rq);
1065 void mlx5e_activate_icosq(struct mlx5e_icosq *icosq);
1066 void mlx5e_deactivate_icosq(struct mlx5e_icosq *icosq);
1067 
1068 int mlx5e_modify_sq(struct mlx5_core_dev *mdev, u32 sqn,
1069                     struct mlx5e_modify_sq_param *p);
1070 void mlx5e_activate_txqsq(struct mlx5e_txqsq *sq);
1071 void mlx5e_tx_disable_queue(struct netdev_queue *txq);
1072 
1073 static inline bool mlx5_tx_swp_supported(struct mlx5_core_dev *mdev)
1074 {
1075         return MLX5_CAP_ETH(mdev, swp) &&
1076                 MLX5_CAP_ETH(mdev, swp_csum) && MLX5_CAP_ETH(mdev, swp_lso);
1077 }
1078 
1079 extern const struct ethtool_ops mlx5e_ethtool_ops;
1080 #ifdef CONFIG_MLX5_CORE_EN_DCB
1081 extern const struct dcbnl_rtnl_ops mlx5e_dcbnl_ops;
1082 int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets);
1083 void mlx5e_dcbnl_initialize(struct mlx5e_priv *priv);
1084 void mlx5e_dcbnl_init_app(struct mlx5e_priv *priv);
1085 void mlx5e_dcbnl_delete_app(struct mlx5e_priv *priv);
1086 #endif
1087 
1088 int mlx5e_create_tir(struct mlx5_core_dev *mdev,
1089                      struct mlx5e_tir *tir, u32 *in, int inlen);
1090 void mlx5e_destroy_tir(struct mlx5_core_dev *mdev,
1091                        struct mlx5e_tir *tir);
1092 int mlx5e_create_mdev_resources(struct mlx5_core_dev *mdev);
1093 void mlx5e_destroy_mdev_resources(struct mlx5_core_dev *mdev);
1094 int mlx5e_refresh_tirs(struct mlx5e_priv *priv, bool enable_uc_lb);
1095 
1096 /* common netdev helpers */
1097 void mlx5e_create_q_counters(struct mlx5e_priv *priv);
1098 void mlx5e_destroy_q_counters(struct mlx5e_priv *priv);
1099 int mlx5e_open_drop_rq(struct mlx5e_priv *priv,
1100                        struct mlx5e_rq *drop_rq);
1101 void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq);
1102 
1103 int mlx5e_create_indirect_rqt(struct mlx5e_priv *priv);
1104 
1105 int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv, bool inner_ttc);
1106 void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv);
1107 
1108 int mlx5e_create_direct_rqts(struct mlx5e_priv *priv, struct mlx5e_tir *tirs);
1109 void mlx5e_destroy_direct_rqts(struct mlx5e_priv *priv, struct mlx5e_tir *tirs);
1110 int mlx5e_create_direct_tirs(struct mlx5e_priv *priv, struct mlx5e_tir *tirs);
1111 void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv, struct mlx5e_tir *tirs);
1112 void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt);
1113 
1114 int mlx5e_create_tis(struct mlx5_core_dev *mdev, void *in, u32 *tisn);
1115 void mlx5e_destroy_tis(struct mlx5_core_dev *mdev, u32 tisn);
1116 
1117 int mlx5e_create_tises(struct mlx5e_priv *priv);
1118 void mlx5e_destroy_tises(struct mlx5e_priv *priv);
1119 int mlx5e_update_nic_rx(struct mlx5e_priv *priv);
1120 void mlx5e_update_carrier(struct mlx5e_priv *priv);
1121 int mlx5e_close(struct net_device *netdev);
1122 int mlx5e_open(struct net_device *netdev);
1123 void mlx5e_update_ndo_stats(struct mlx5e_priv *priv);
1124 
1125 void mlx5e_queue_update_stats(struct mlx5e_priv *priv);
1126 int mlx5e_bits_invert(unsigned long a, int size);
1127 
1128 typedef int (*change_hw_mtu_cb)(struct mlx5e_priv *priv);
1129 int mlx5e_set_dev_port_mtu(struct mlx5e_priv *priv);
1130 int mlx5e_change_mtu(struct net_device *netdev, int new_mtu,
1131                      change_hw_mtu_cb set_mtu_cb);
1132 
1133 /* ethtool helpers */
1134 void mlx5e_ethtool_get_drvinfo(struct mlx5e_priv *priv,
1135                                struct ethtool_drvinfo *drvinfo);
1136 void mlx5e_ethtool_get_strings(struct mlx5e_priv *priv,
1137                                uint32_t stringset, uint8_t *data);
1138 int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset);
1139 void mlx5e_ethtool_get_ethtool_stats(struct mlx5e_priv *priv,
1140                                      struct ethtool_stats *stats, u64 *data);
1141 void mlx5e_ethtool_get_ringparam(struct mlx5e_priv *priv,
1142                                  struct ethtool_ringparam *param);
1143 int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv,
1144                                 struct ethtool_ringparam *param);
1145 void mlx5e_ethtool_get_channels(struct mlx5e_priv *priv,
1146                                 struct ethtool_channels *ch);
1147 int mlx5e_ethtool_set_channels(struct mlx5e_priv *priv,
1148                                struct ethtool_channels *ch);
1149 int mlx5e_ethtool_get_coalesce(struct mlx5e_priv *priv,
1150                                struct ethtool_coalesce *coal);
1151 int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
1152                                struct ethtool_coalesce *coal);
1153 int mlx5e_ethtool_get_link_ksettings(struct mlx5e_priv *priv,
1154                                      struct ethtool_link_ksettings *link_ksettings);
1155 int mlx5e_ethtool_set_link_ksettings(struct mlx5e_priv *priv,
1156                                      const struct ethtool_link_ksettings *link_ksettings);
1157 u32 mlx5e_ethtool_get_rxfh_key_size(struct mlx5e_priv *priv);
1158 u32 mlx5e_ethtool_get_rxfh_indir_size(struct mlx5e_priv *priv);
1159 int mlx5e_ethtool_get_ts_info(struct mlx5e_priv *priv,
1160                               struct ethtool_ts_info *info);
1161 int mlx5e_ethtool_flash_device(struct mlx5e_priv *priv,
1162                                struct ethtool_flash *flash);
1163 void mlx5e_ethtool_get_pauseparam(struct mlx5e_priv *priv,
1164                                   struct ethtool_pauseparam *pauseparam);
1165 int mlx5e_ethtool_set_pauseparam(struct mlx5e_priv *priv,
1166                                  struct ethtool_pauseparam *pauseparam);
1167 
1168 /* mlx5e generic netdev management API */
1169 int mlx5e_netdev_init(struct net_device *netdev,
1170                       struct mlx5e_priv *priv,
1171                       struct mlx5_core_dev *mdev,
1172                       const struct mlx5e_profile *profile,
1173                       void *ppriv);
1174 void mlx5e_netdev_cleanup(struct net_device *netdev, struct mlx5e_priv *priv);
1175 struct net_device*
1176 mlx5e_create_netdev(struct mlx5_core_dev *mdev, const struct mlx5e_profile *profile,
1177                     int nch, void *ppriv);
1178 int mlx5e_attach_netdev(struct mlx5e_priv *priv);
1179 void mlx5e_detach_netdev(struct mlx5e_priv *priv);
1180 void mlx5e_destroy_netdev(struct mlx5e_priv *priv);
1181 void mlx5e_set_netdev_mtu_boundaries(struct mlx5e_priv *priv);
1182 void mlx5e_build_nic_params(struct mlx5_core_dev *mdev,
1183                             struct mlx5e_xsk *xsk,
1184                             struct mlx5e_rss_params *rss_params,
1185                             struct mlx5e_params *params,
1186                             u16 max_channels, u16 mtu);
1187 void mlx5e_build_rq_params(struct mlx5_core_dev *mdev,
1188                            struct mlx5e_params *params);
1189 void mlx5e_build_rss_params(struct mlx5e_rss_params *rss_params,
1190                             u16 num_channels);
1191 void mlx5e_rx_dim_work(struct work_struct *work);
1192 void mlx5e_tx_dim_work(struct work_struct *work);
1193 
1194 void mlx5e_add_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti);
1195 void mlx5e_del_vxlan_port(struct net_device *netdev, struct udp_tunnel_info *ti);
1196 netdev_features_t mlx5e_features_check(struct sk_buff *skb,
1197                                        struct net_device *netdev,
1198                                        netdev_features_t features);
1199 int mlx5e_set_features(struct net_device *netdev, netdev_features_t features);
1200 #ifdef CONFIG_MLX5_ESWITCH
1201 int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac);
1202 int mlx5e_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate, int max_tx_rate);
1203 int mlx5e_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_info *ivi);
1204 int mlx5e_get_vf_stats(struct net_device *dev, int vf, struct ifla_vf_stats *vf_stats);
1205 #endif
1206 #endif /* __MLX5_EN_H__ */

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