drivers/net/ethernet/mellanox/mlx4/mlx4_en.h

   1 /*
   2  * Copyright (c) 2007 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  */
  33
  34 #ifndef _MLX4_EN_H_
  35 #define _MLX4_EN_H_
  36
  37 #include <linux/bitops.h>
  38 #include <linux/compiler.h>
  39 #include <linux/list.h>
  40 #include <linux/mutex.h>
  41 #include <linux/netdevice.h>
  42 #include <linux/if_vlan.h>
  43 #include <linux/net_tstamp.h>
  44 #ifdef CONFIG_MLX4_EN_DCB
  45 #include <linux/dcbnl.h>
  46 #endif
  47 #include <linux/cpu_rmap.h>
  48 #include <linux/ptp_clock_kernel.h>
  49
  50 #include <linux/mlx4/device.h>
  51 #include <linux/mlx4/qp.h>
  52 #include <linux/mlx4/cq.h>
  53 #include <linux/mlx4/srq.h>
  54 #include <linux/mlx4/doorbell.h>
  55 #include <linux/mlx4/cmd.h>
  56
  57 #include "en_port.h"
  58 #include "mlx4_stats.h"
  59
  60 #define DRV_NAME        "mlx4_en"
  61 #define DRV_VERSION     "2.2-1"
  62 #define DRV_RELDATE     "Feb 2014"
  63
  64 #define MLX4_EN_MSG_LEVEL       (NETIF_MSG_LINK | NETIF_MSG_IFDOWN)
  65
  66 /*
  67  * Device constants
  68  */
  69
  70
  71 #define MLX4_EN_PAGE_SHIFT      12
  72 #define MLX4_EN_PAGE_SIZE       (1 << MLX4_EN_PAGE_SHIFT)
  73 #define DEF_RX_RINGS            16
  74 #define MAX_RX_RINGS            128
  75 #define MIN_RX_RINGS            4
  76 #define TXBB_SIZE               64
  77 #define HEADROOM                (2048 / TXBB_SIZE + 1)
  78 #define STAMP_STRIDE            64
  79 #define STAMP_DWORDS            (STAMP_STRIDE / 4)
  80 #define STAMP_SHIFT             31
  81 #define STAMP_VAL               0x7fffffff
  82 #define STATS_DELAY             (HZ / 4)
  83 #define SERVICE_TASK_DELAY      (HZ / 4)
  84 #define MAX_NUM_OF_FS_RULES     256
  85
  86 #define MLX4_EN_FILTER_HASH_SHIFT 4
  87 #define MLX4_EN_FILTER_EXPIRY_QUOTA 60
  88
  89 /* Typical TSO descriptor with 16 gather entries is 352 bytes... */
  90 #define MAX_DESC_SIZE           512
  91 #define MAX_DESC_TXBBS          (MAX_DESC_SIZE / TXBB_SIZE)
  92
  93 /*
  94  * OS related constants and tunables
  95  */
  96
  97 #define MLX4_EN_PRIV_FLAGS_BLUEFLAME 1
  98 #define MLX4_EN_PRIV_FLAGS_PHV       2
  99
 100 #define MLX4_EN_WATCHDOG_TIMEOUT        (15 * HZ)
 101
 102 /* Use the maximum between 16384 and a single page */
 103 #define MLX4_EN_ALLOC_SIZE      PAGE_ALIGN(16384)
 104
 105 #define MLX4_EN_ALLOC_PREFER_ORDER      PAGE_ALLOC_COSTLY_ORDER
 106
 107 /* Receive fragment sizes; we use at most 3 fragments (for 9600 byte MTU
 108  * and 4K allocations) */
 109 enum {
 110         FRAG_SZ0 = 1536 - NET_IP_ALIGN,
 111         FRAG_SZ1 = 4096,
 112         FRAG_SZ2 = 4096,
 113         FRAG_SZ3 = MLX4_EN_ALLOC_SIZE
 114 };
 115 #define MLX4_EN_MAX_RX_FRAGS    4
 116
 117 /* Maximum ring sizes */
 118 #define MLX4_EN_MAX_TX_SIZE     8192
 119 #define MLX4_EN_MAX_RX_SIZE     8192
 120
 121 /* Minimum ring size for our page-allocation scheme to work */
 122 #define MLX4_EN_MIN_RX_SIZE     (MLX4_EN_ALLOC_SIZE / SMP_CACHE_BYTES)
 123 #define MLX4_EN_MIN_TX_SIZE     (4096 / TXBB_SIZE)
 124
 125 #define MLX4_EN_SMALL_PKT_SIZE          64
 126 #define MLX4_EN_MIN_TX_RING_P_UP        1
 127 #define MLX4_EN_MAX_TX_RING_P_UP        32
 128 #define MLX4_EN_NUM_UP                  8
 129 #define MLX4_EN_DEF_TX_RING_SIZE        512
 130 #define MLX4_EN_DEF_RX_RING_SIZE        1024
 131 #define MAX_TX_RINGS                    (MLX4_EN_MAX_TX_RING_P_UP * \
 132                                          MLX4_EN_NUM_UP)
 133
 134 #define MLX4_EN_DEFAULT_TX_WORK         256
 135
 136 /* Target number of packets to coalesce with interrupt moderation */
 137 #define MLX4_EN_RX_COAL_TARGET  44
 138 #define MLX4_EN_RX_COAL_TIME    0x10
 139
 140 #define MLX4_EN_TX_COAL_PKTS    16
 141 #define MLX4_EN_TX_COAL_TIME    0x10
 142
 143 #define MLX4_EN_RX_RATE_LOW             400000
 144 #define MLX4_EN_RX_COAL_TIME_LOW        0
 145 #define MLX4_EN_RX_RATE_HIGH            450000
 146 #define MLX4_EN_RX_COAL_TIME_HIGH       128
 147 #define MLX4_EN_RX_SIZE_THRESH          1024
 148 #define MLX4_EN_RX_RATE_THRESH          (1000000 / MLX4_EN_RX_COAL_TIME_HIGH)
 149 #define MLX4_EN_SAMPLE_INTERVAL         0
 150 #define MLX4_EN_AVG_PKT_SMALL           256
 151
 152 #define MLX4_EN_AUTO_CONF       0xffff
 153
 154 #define MLX4_EN_DEF_RX_PAUSE    1
 155 #define MLX4_EN_DEF_TX_PAUSE    1
 156
 157 /* Interval between successive polls in the Tx routine when polling is used
 158    instead of interrupts (in per-core Tx rings) - should be power of 2 */
 159 #define MLX4_EN_TX_POLL_MODER   16
 160 #define MLX4_EN_TX_POLL_TIMEOUT (HZ / 4)
 161
 162 #define SMALL_PACKET_SIZE      (256 - NET_IP_ALIGN)
 163 #define HEADER_COPY_SIZE       (128 - NET_IP_ALIGN)
 164 #define MLX4_LOOPBACK_TEST_PAYLOAD (HEADER_COPY_SIZE - ETH_HLEN)
 165
 166 #define MLX4_EN_MIN_MTU         46
 167 #define ETH_BCAST               0xffffffffffffULL
 168
 169 #define MLX4_EN_LOOPBACK_RETRIES        5
 170 #define MLX4_EN_LOOPBACK_TIMEOUT        100
 171
 172 #ifdef MLX4_EN_PERF_STAT
 173 /* Number of samples to 'average' */
 174 #define AVG_SIZE                        128
 175 #define AVG_FACTOR                      1024
 176
 177 #define INC_PERF_COUNTER(cnt)           (++(cnt))
 178 #define ADD_PERF_COUNTER(cnt, add)      ((cnt) += (add))
 179 #define AVG_PERF_COUNTER(cnt, sample) \
 180         ((cnt) = ((cnt) * (AVG_SIZE - 1) + (sample) * AVG_FACTOR) / AVG_SIZE)
 181 #define GET_PERF_COUNTER(cnt)           (cnt)
 182 #define GET_AVG_PERF_COUNTER(cnt)       ((cnt) / AVG_FACTOR)
 183
 184 #else
 185
 186 #define INC_PERF_COUNTER(cnt)           do {} while (0)
 187 #define ADD_PERF_COUNTER(cnt, add)      do {} while (0)
 188 #define AVG_PERF_COUNTER(cnt, sample)   do {} while (0)
 189 #define GET_PERF_COUNTER(cnt)           (0)
 190 #define GET_AVG_PERF_COUNTER(cnt)       (0)
 191 #endif /* MLX4_EN_PERF_STAT */
 192
 193 /* Constants for TX flow */
 194 enum {
 195         MAX_INLINE = 104, /* 128 - 16 - 4 - 4 */
 196         MAX_BF = 256,
 197         MIN_PKT_LEN = 17,
 198 };
 199
 200 /*
 201  * Configurables
 202  */
 203
 204 enum cq_type {
 205         RX = 0,
 206         TX = 1,
 207 };
 208
 209
 210 /*
 211  * Useful macros
 212  */
 213 #define ROUNDUP_LOG2(x)         ilog2(roundup_pow_of_two(x))
 214 #define XNOR(x, y)              (!(x) == !(y))
 215
 216
 217 struct mlx4_en_tx_info {
 218         struct sk_buff *skb;
 219         dma_addr_t      map0_dma;
 220         u32             map0_byte_count;
 221         u32             nr_txbb;
 222         u32             nr_bytes;
 223         u8              linear;
 224         u8              data_offset;
 225         u8              inl;
 226         u8              ts_requested;
 227         u8              nr_maps;
 228 } ____cacheline_aligned_in_smp;
 229
 230
 231 #define MLX4_EN_BIT_DESC_OWN    0x80000000
 232 #define CTRL_SIZE       sizeof(struct mlx4_wqe_ctrl_seg)
 233 #define MLX4_EN_MEMTYPE_PAD     0x100
 234 #define DS_SIZE         sizeof(struct mlx4_wqe_data_seg)
 235
 236
 237 struct mlx4_en_tx_desc {
 238         struct mlx4_wqe_ctrl_seg ctrl;
 239         union {
 240                 struct mlx4_wqe_data_seg data; /* at least one data segment */
 241                 struct mlx4_wqe_lso_seg lso;
 242                 struct mlx4_wqe_inline_seg inl;
 243         };
 244 };
 245
 246 #define MLX4_EN_USE_SRQ         0x01000000
 247
 248 #define MLX4_EN_CX3_LOW_ID      0x1000
 249 #define MLX4_EN_CX3_HIGH_ID     0x1005
 250
 251 struct mlx4_en_rx_alloc {
 252         struct page     *page;
 253         dma_addr_t      dma;
 254         u32             page_offset;
 255         u32             page_size;
 256 };
 257
 258 struct mlx4_en_tx_ring {
 259         /* cache line used and dirtied in tx completion
 260          * (mlx4_en_free_tx_buf())
 261          */
 262         u32                     last_nr_txbb;
 263         u32                     cons;
 264         unsigned long           wake_queue;
 265
 266         /* cache line used and dirtied in mlx4_en_xmit() */
 267         u32                     prod ____cacheline_aligned_in_smp;
 268         unsigned long           bytes;
 269         unsigned long           packets;
 270         unsigned long           tx_csum;
 271         unsigned long           tso_packets;
 272         unsigned long           xmit_more;
 273         struct mlx4_bf          bf;
 274         unsigned long           queue_stopped;
 275
 276         /* Following part should be mostly read */
 277         cpumask_t               affinity_mask;
 278         struct mlx4_qp          qp;
 279         struct mlx4_hwq_resources wqres;
 280         u32                     size; /* number of TXBBs */
 281         u32                     size_mask;
 282         u16                     stride;
 283         u32                     full_size;
 284         u16                     cqn;    /* index of port CQ associated with this ring */
 285         u32                     buf_size;
 286         __be32                  doorbell_qpn;
 287         __be32                  mr_key;
 288         void                    *buf;
 289         struct mlx4_en_tx_info  *tx_info;
 290         u8                      *bounce_buf;
 291         struct mlx4_qp_context  context;
 292         int                     qpn;
 293         enum mlx4_qp_state      qp_state;
 294         u8                      queue_index;
 295         bool                    bf_enabled;
 296         bool                    bf_alloced;
 297         struct netdev_queue     *tx_queue;
 298         int                     hwtstamp_tx_type;
 299 } ____cacheline_aligned_in_smp;
 300
 301 struct mlx4_en_rx_desc {
 302         /* actual number of entries depends on rx ring stride */
 303         struct mlx4_wqe_data_seg data[0];
 304 };
 305
 306 struct mlx4_en_rx_ring {
 307         struct mlx4_hwq_resources wqres;
 308         struct mlx4_en_rx_alloc page_alloc[MLX4_EN_MAX_RX_FRAGS];
 309         u32 size ;      /* number of Rx descs*/
 310         u32 actual_size;
 311         u32 size_mask;
 312         u16 stride;
 313         u16 log_stride;
 314         u16 cqn;        /* index of port CQ associated with this ring */
 315         u32 prod;
 316         u32 cons;
 317         u32 buf_size;
 318         u8  fcs_del;
 319         void *buf;
 320         void *rx_info;
 321         unsigned long bytes;
 322         unsigned long packets;
 323         unsigned long csum_ok;
 324         unsigned long csum_none;
 325         unsigned long csum_complete;
 326         int hwtstamp_rx_filter;
 327         cpumask_var_t affinity_mask;
 328 };
 329
 330 struct mlx4_en_cq {
 331         struct mlx4_cq          mcq;
 332         struct mlx4_hwq_resources wqres;
 333         int                     ring;
 334         struct net_device      *dev;
 335         struct napi_struct      napi;
 336         int size;
 337         int buf_size;
 338         int vector;
 339         enum cq_type is_tx;
 340         u16 moder_time;
 341         u16 moder_cnt;
 342         struct mlx4_cqe *buf;
 343 #define MLX4_EN_OPCODE_ERROR    0x1e
 344
 345         struct irq_desc *irq_desc;
 346 };
 347
 348 struct mlx4_en_port_profile {
 349         u32 flags;
 350         u32 tx_ring_num;
 351         u32 rx_ring_num;
 352         u32 tx_ring_size;
 353         u32 rx_ring_size;
 354         u8 rx_pause;
 355         u8 rx_ppp;
 356         u8 tx_pause;
 357         u8 tx_ppp;
 358         int rss_rings;
 359         int inline_thold;
 360 };
 361
 362 struct mlx4_en_profile {
 363         int udp_rss;
 364         u8 rss_mask;
 365         u32 active_ports;
 366         u32 small_pkt_int;
 367         u8 no_reset;
 368         u8 num_tx_rings_p_up;
 369         struct mlx4_en_port_profile prof[MLX4_MAX_PORTS + 1];
 370 };
 371
 372 struct mlx4_en_dev {
 373         struct mlx4_dev         *dev;
 374         struct pci_dev          *pdev;
 375         struct mutex            state_lock;
 376         struct net_device       *pndev[MLX4_MAX_PORTS + 1];
 377         struct net_device       *upper[MLX4_MAX_PORTS + 1];
 378         u32                     port_cnt;
 379         bool                    device_up;
 380         struct mlx4_en_profile  profile;
 381         u32                     LSO_support;
 382         struct workqueue_struct *workqueue;
 383         struct device           *dma_device;
 384         void __iomem            *uar_map;
 385         struct mlx4_uar         priv_uar;
 386         struct mlx4_mr          mr;
 387         u32                     priv_pdn;
 388         spinlock_t              uar_lock;
 389         u8                      mac_removed[MLX4_MAX_PORTS + 1];
 390         rwlock_t                clock_lock;
 391         u32                     nominal_c_mult;
 392         struct cyclecounter     cycles;
 393         struct timecounter      clock;
 394         unsigned long           last_overflow_check;
 395         unsigned long           overflow_period;
 396         struct ptp_clock        *ptp_clock;
 397         struct ptp_clock_info   ptp_clock_info;
 398         struct notifier_block   nb;
 399 };
 400
 401
 402 struct mlx4_en_rss_map {
 403         int base_qpn;
 404         struct mlx4_qp qps[MAX_RX_RINGS];
 405         enum mlx4_qp_state state[MAX_RX_RINGS];
 406         struct mlx4_qp indir_qp;
 407         enum mlx4_qp_state indir_state;
 408 };
 409
 410 enum mlx4_en_port_flag {
 411         MLX4_EN_PORT_ANC = 1<<0, /* Auto-negotiation complete */
 412         MLX4_EN_PORT_ANE = 1<<1, /* Auto-negotiation enabled */
 413 };
 414
 415 struct mlx4_en_port_state {
 416         int link_state;
 417         int link_speed;
 418         int transceiver;
 419         u32 flags;
 420 };
 421
 422 enum mlx4_en_mclist_act {
 423         MCLIST_NONE,
 424         MCLIST_REM,
 425         MCLIST_ADD,
 426 };
 427
 428 struct mlx4_en_mc_list {
 429         struct list_head        list;
 430         enum mlx4_en_mclist_act action;
 431         u8                      addr[ETH_ALEN];
 432         u64                     reg_id;
 433         u64                     tunnel_reg_id;
 434 };
 435
 436 struct mlx4_en_frag_info {
 437         u16 frag_size;
 438         u16 frag_prefix_size;
 439         u16 frag_stride;
 440 };
 441
 442 #ifdef CONFIG_MLX4_EN_DCB
 443 /* Minimal TC BW - setting to 0 will block traffic */
 444 #define MLX4_EN_BW_MIN 1
 445 #define MLX4_EN_BW_MAX 100 /* Utilize 100% of the line */
 446
 447 #define MLX4_EN_TC_ETS 7
 448
 449 #endif
 450
 451 struct ethtool_flow_id {
 452         struct list_head list;
 453         struct ethtool_rx_flow_spec flow_spec;
 454         u64 id;
 455 };
 456
 457 enum {
 458         MLX4_EN_FLAG_PROMISC            = (1 << 0),
 459         MLX4_EN_FLAG_MC_PROMISC         = (1 << 1),
 460         /* whether we need to enable hardware loopback by putting dmac
 461          * in Tx WQE
 462          */
 463         MLX4_EN_FLAG_ENABLE_HW_LOOPBACK = (1 << 2),
 464         /* whether we need to drop packets that hardware loopback-ed */
 465         MLX4_EN_FLAG_RX_FILTER_NEEDED   = (1 << 3),
 466         MLX4_EN_FLAG_FORCE_PROMISC      = (1 << 4),
 467         MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP        = (1 << 5),
 468 };
 469
 470 #define PORT_BEACON_MAX_LIMIT (65535)
 471 #define MLX4_EN_MAC_HASH_SIZE (1 << BITS_PER_BYTE)
 472 #define MLX4_EN_MAC_HASH_IDX 5
 473
 474 struct mlx4_en_stats_bitmap {
 475         DECLARE_BITMAP(bitmap, NUM_ALL_STATS);
 476         struct mutex mutex; /* for mutual access to stats bitmap */
 477 };
 478
 479 struct mlx4_en_priv {
 480         struct mlx4_en_dev *mdev;
 481         struct mlx4_en_port_profile *prof;
 482         struct net_device *dev;
 483         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 484         struct net_device_stats stats;
 485         struct net_device_stats ret_stats;
 486         struct mlx4_en_port_state port_state;
 487         spinlock_t stats_lock;
 488         struct ethtool_flow_id ethtool_rules[MAX_NUM_OF_FS_RULES];
 489         /* To allow rules removal while port is going down */
 490         struct list_head ethtool_list;
 491
 492         unsigned long last_moder_packets[MAX_RX_RINGS];
 493         unsigned long last_moder_tx_packets;
 494         unsigned long last_moder_bytes[MAX_RX_RINGS];
 495         unsigned long last_moder_jiffies;
 496         int last_moder_time[MAX_RX_RINGS];
 497         u16 rx_usecs;
 498         u16 rx_frames;
 499         u16 tx_usecs;
 500         u16 tx_frames;
 501         u32 pkt_rate_low;
 502         u16 rx_usecs_low;
 503         u32 pkt_rate_high;
 504         u16 rx_usecs_high;
 505         u16 sample_interval;
 506         u16 adaptive_rx_coal;
 507         u32 msg_enable;
 508         u32 loopback_ok;
 509         u32 validate_loopback;
 510
 511         struct mlx4_hwq_resources res;
 512         int link_state;
 513         int last_link_state;
 514         bool port_up;
 515         int port;
 516         int registered;
 517         int allocated;
 518         int stride;
 519         unsigned char current_mac[ETH_ALEN + 2];
 520         int mac_index;
 521         unsigned max_mtu;
 522         int base_qpn;
 523         int cqe_factor;
 524         int cqe_size;
 525
 526         struct mlx4_en_rss_map rss_map;
 527         __be32 ctrl_flags;
 528         u32 flags;
 529         u8 num_tx_rings_p_up;
 530         u32 tx_work_limit;
 531         u32 tx_ring_num;
 532         u32 rx_ring_num;
 533         u32 rx_skb_size;
 534         struct mlx4_en_frag_info frag_info[MLX4_EN_MAX_RX_FRAGS];
 535         u16 num_frags;
 536         u16 log_rx_info;
 537
 538         struct mlx4_en_tx_ring **tx_ring;
 539         struct mlx4_en_rx_ring *rx_ring[MAX_RX_RINGS];
 540         struct mlx4_en_cq **tx_cq;
 541         struct mlx4_en_cq *rx_cq[MAX_RX_RINGS];
 542         struct mlx4_qp drop_qp;
 543         struct work_struct rx_mode_task;
 544         struct work_struct watchdog_task;
 545         struct work_struct linkstate_task;
 546         struct delayed_work stats_task;
 547         struct delayed_work service_task;
 548 #ifdef CONFIG_MLX4_EN_VXLAN
 549         struct work_struct vxlan_add_task;
 550         struct work_struct vxlan_del_task;
 551 #endif
 552         struct mlx4_en_perf_stats pstats;
 553         struct mlx4_en_pkt_stats pkstats;
 554         struct mlx4_en_counter_stats pf_stats;
 555         struct mlx4_en_flow_stats_rx rx_priority_flowstats[MLX4_NUM_PRIORITIES];
 556         struct mlx4_en_flow_stats_tx tx_priority_flowstats[MLX4_NUM_PRIORITIES];
 557         struct mlx4_en_flow_stats_rx rx_flowstats;
 558         struct mlx4_en_flow_stats_tx tx_flowstats;
 559         struct mlx4_en_port_stats port_stats;
 560         struct mlx4_en_stats_bitmap stats_bitmap;
 561         struct list_head mc_list;
 562         struct list_head curr_list;
 563         u64 broadcast_id;
 564         struct mlx4_en_stat_out_mbox hw_stats;
 565         int vids[128];
 566         bool wol;
 567         struct device *ddev;
 568         struct hlist_head mac_hash[MLX4_EN_MAC_HASH_SIZE];
 569         struct hwtstamp_config hwtstamp_config;
 570         u32 counter_index;
 571
 572 #ifdef CONFIG_MLX4_EN_DCB
 573         struct ieee_ets ets;
 574         u16 maxrate[IEEE_8021QAZ_MAX_TCS];
 575         enum dcbnl_cndd_states cndd_state[IEEE_8021QAZ_MAX_TCS];
 576 #endif
 577 #ifdef CONFIG_RFS_ACCEL
 578         spinlock_t filters_lock;
 579         int last_filter_id;
 580         struct list_head filters;
 581         struct hlist_head filter_hash[1 << MLX4_EN_FILTER_HASH_SHIFT];
 582 #endif
 583         u64 tunnel_reg_id;
 584         __be16 vxlan_port;
 585
 586         u32 pflags;
 587         u8 rss_key[MLX4_EN_RSS_KEY_SIZE];
 588         u8 rss_hash_fn;
 589 };
 590
 591 enum mlx4_en_wol {
 592         MLX4_EN_WOL_MAGIC = (1ULL << 61),
 593         MLX4_EN_WOL_ENABLED = (1ULL << 62),
 594 };
 595
 596 struct mlx4_mac_entry {
 597         struct hlist_node hlist;
 598         unsigned char mac[ETH_ALEN + 2];
 599         u64 reg_id;
 600         struct rcu_head rcu;
 601 };
 602
 603 static inline struct mlx4_cqe *mlx4_en_get_cqe(void *buf, int idx, int cqe_sz)
 604 {
 605         return buf + idx * cqe_sz;
 606 }
 607
 608 #define MLX4_EN_WOL_DO_MODIFY (1ULL << 63)
 609
 610 void mlx4_en_init_ptys2ethtool_map(void);
 611 void mlx4_en_update_loopback_state(struct net_device *dev,
 612                                    netdev_features_t features);
 613
 614 void mlx4_en_destroy_netdev(struct net_device *dev);
 615 int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 616                         struct mlx4_en_port_profile *prof);
 617
 618 int mlx4_en_start_port(struct net_device *dev);
 619 void mlx4_en_stop_port(struct net_device *dev, int detach);
 620
 621 void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev,
 622                               struct mlx4_en_stats_bitmap *stats_bitmap,
 623                               u8 rx_ppp, u8 rx_pause,
 624                               u8 tx_ppp, u8 tx_pause);
 625
 626 void mlx4_en_free_resources(struct mlx4_en_priv *priv);
 627 int mlx4_en_alloc_resources(struct mlx4_en_priv *priv);
 628
 629 int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq,
 630                       int entries, int ring, enum cq_type mode, int node);
 631 void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq);
 632 int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
 633                         int cq_idx);
 634 void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
 635 int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
 636 int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
 637
 638 void mlx4_en_tx_irq(struct mlx4_cq *mcq);
 639 u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb,
 640                          void *accel_priv, select_queue_fallback_t fallback);
 641 netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev);
 642
 643 int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 644                            struct mlx4_en_tx_ring **pring,
 645                            u32 size, u16 stride,
 646                            int node, int queue_index);
 647 void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
 648                              struct mlx4_en_tx_ring **pring);
 649 int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
 650                              struct mlx4_en_tx_ring *ring,
 651                              int cq, int user_prio);
 652 void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv,
 653                                 struct mlx4_en_tx_ring *ring);
 654 void mlx4_en_set_num_rx_rings(struct mlx4_en_dev *mdev);
 655 void mlx4_en_recover_from_oom(struct mlx4_en_priv *priv);
 656 int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
 657                            struct mlx4_en_rx_ring **pring,
 658                            u32 size, u16 stride, int node);
 659 void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
 660                              struct mlx4_en_rx_ring **pring,
 661                              u32 size, u16 stride);
 662 int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv);
 663 void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv,
 664                                 struct mlx4_en_rx_ring *ring);
 665 int mlx4_en_process_rx_cq(struct net_device *dev,
 666                           struct mlx4_en_cq *cq,
 667                           int budget);
 668 int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget);
 669 int mlx4_en_poll_tx_cq(struct napi_struct *napi, int budget);
 670 void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride,
 671                 int is_tx, int rss, int qpn, int cqn, int user_prio,
 672                 struct mlx4_qp_context *context);
 673 void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event);
 674 int mlx4_en_map_buffer(struct mlx4_buf *buf);
 675 void mlx4_en_unmap_buffer(struct mlx4_buf *buf);
 676 int mlx4_en_change_mcast_lb(struct mlx4_en_priv *priv, struct mlx4_qp *qp,
 677                             int loopback);
 678 void mlx4_en_calc_rx_buf(struct net_device *dev);
 679 int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv);
 680 void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv);
 681 int mlx4_en_create_drop_qp(struct mlx4_en_priv *priv);
 682 void mlx4_en_destroy_drop_qp(struct mlx4_en_priv *priv);
 683 int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring);
 684 void mlx4_en_rx_irq(struct mlx4_cq *mcq);
 685
 686 int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
 687 int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv);
 688
 689 int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset);
 690 int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port);
 691
 692 #ifdef CONFIG_MLX4_EN_DCB
 693 extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_ops;
 694 extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_pfc_ops;
 695 #endif
 696
 697 int mlx4_en_setup_tc(struct net_device *dev, u8 up);
 698
 699 #ifdef CONFIG_RFS_ACCEL
 700 void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv);
 701 #endif
 702
 703 #define MLX4_EN_NUM_SELF_TEST   5
 704 void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf);
 705 void mlx4_en_ptp_overflow_check(struct mlx4_en_dev *mdev);
 706
 707 #define DEV_FEATURE_CHANGED(dev, new_features, feature) \
 708         ((dev->features & feature) ^ (new_features & feature))
 709
 710 int mlx4_en_reset_config(struct net_device *dev,
 711                          struct hwtstamp_config ts_config,
 712                          netdev_features_t new_features);
 713 void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev,
 714                                      struct mlx4_en_stats_bitmap *stats_bitmap,
 715                                      u8 rx_ppp, u8 rx_pause,
 716                                      u8 tx_ppp, u8 tx_pause);
 717 int mlx4_en_netdev_event(struct notifier_block *this,
 718                          unsigned long event, void *ptr);
 719
 720 /*
 721  * Functions for time stamping
 722  */
 723 u64 mlx4_en_get_cqe_ts(struct mlx4_cqe *cqe);
 724 void mlx4_en_fill_hwtstamps(struct mlx4_en_dev *mdev,
 725                             struct skb_shared_hwtstamps *hwts,
 726                             u64 timestamp);
 727 void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev);
 728 void mlx4_en_remove_timestamp(struct mlx4_en_dev *mdev);
 729
 730 /* Globals
 731  */
 732 extern const struct ethtool_ops mlx4_en_ethtool_ops;
 733
 734
 735
 736 /*
 737  * printk / logging functions
 738  */
 739
 740 __printf(3, 4)
 741 void en_print(const char *level, const struct mlx4_en_priv *priv,
 742               const char *format, ...);
 743
 744 #define en_dbg(mlevel, priv, format, ...)                               \
 745 do {                                                                    \
 746         if (NETIF_MSG_##mlevel & (priv)->msg_enable)                    \
 747                 en_print(KERN_DEBUG, priv, format, ##__VA_ARGS__);      \
 748 } while (0)
 749 #define en_warn(priv, format, ...)                                      \
 750         en_print(KERN_WARNING, priv, format, ##__VA_ARGS__)
 751 #define en_err(priv, format, ...)                                       \
 752         en_print(KERN_ERR, priv, format, ##__VA_ARGS__)
 753 #define en_info(priv, format, ...)                                      \
 754         en_print(KERN_INFO, priv, format, ##__VA_ARGS__)
 755
 756 #define mlx4_err(mdev, format, ...)                                     \
 757         pr_err(DRV_NAME " %s: " format,                                 \
 758                dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__)
 759 #define mlx4_info(mdev, format, ...)                                    \
 760         pr_info(DRV_NAME " %s: " format,                                \
 761                 dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__)
 762 #define mlx4_warn(mdev, format, ...)                                    \
 763         pr_warn(DRV_NAME " %s: " format,                                \
 764                 dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__)
 765
 766 #endif