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 "4.0-0" 62 63 #define MLX4_EN_MSG_LEVEL (NETIF_MSG_LINK | NETIF_MSG_IFDOWN) 64 65 /* 66 * Device constants 67 */ 68 69 70 #define MLX4_EN_PAGE_SHIFT 12 71 #define MLX4_EN_PAGE_SIZE (1 << MLX4_EN_PAGE_SHIFT) 72 #define DEF_RX_RINGS 16 73 #define MAX_RX_RINGS 128 74 #define MIN_RX_RINGS 4 75 #define LOG_TXBB_SIZE 6 76 #define TXBB_SIZE BIT(LOG_TXBB_SIZE) 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_MAX_RX_FRAGS 4 106 107 /* Maximum ring sizes */ 108 #define MLX4_EN_MAX_TX_SIZE 8192 109 #define MLX4_EN_MAX_RX_SIZE 8192 110 111 /* Minimum ring size for our page-allocation scheme to work */ 112 #define MLX4_EN_MIN_RX_SIZE (MLX4_EN_ALLOC_SIZE / SMP_CACHE_BYTES) 113 #define MLX4_EN_MIN_TX_SIZE (4096 / TXBB_SIZE) 114 115 #define MLX4_EN_SMALL_PKT_SIZE 64 116 #define MLX4_EN_MIN_TX_RING_P_UP 1 117 #define MLX4_EN_MAX_TX_RING_P_UP 32 118 #define MLX4_EN_NUM_UP_LOW 1 119 #define MLX4_EN_NUM_UP_HIGH 8 120 #define MLX4_EN_DEF_RX_RING_SIZE 1024 121 #define MLX4_EN_DEF_TX_RING_SIZE MLX4_EN_DEF_RX_RING_SIZE 122 #define MAX_TX_RINGS (MLX4_EN_MAX_TX_RING_P_UP * \ 123 MLX4_EN_NUM_UP_HIGH) 124 125 #define MLX4_EN_DEFAULT_TX_WORK 256 126 127 /* Target number of packets to coalesce with interrupt moderation */ 128 #define MLX4_EN_RX_COAL_TARGET 44 129 #define MLX4_EN_RX_COAL_TIME 0x10 130 131 #define MLX4_EN_TX_COAL_PKTS 16 132 #define MLX4_EN_TX_COAL_TIME 0x10 133 134 #define MLX4_EN_RX_RATE_LOW 400000 135 #define MLX4_EN_RX_COAL_TIME_LOW 0 136 #define MLX4_EN_RX_RATE_HIGH 450000 137 #define MLX4_EN_RX_COAL_TIME_HIGH 128 138 #define MLX4_EN_RX_SIZE_THRESH 1024 139 #define MLX4_EN_RX_RATE_THRESH (1000000 / MLX4_EN_RX_COAL_TIME_HIGH) 140 #define MLX4_EN_SAMPLE_INTERVAL 0 141 #define MLX4_EN_AVG_PKT_SMALL 256 142 143 #define MLX4_EN_AUTO_CONF 0xffff 144 145 #define MLX4_EN_DEF_RX_PAUSE 1 146 #define MLX4_EN_DEF_TX_PAUSE 1 147 148 /* Interval between successive polls in the Tx routine when polling is used 149 instead of interrupts (in per-core Tx rings) - should be power of 2 */ 150 #define MLX4_EN_TX_POLL_MODER 16 151 #define MLX4_EN_TX_POLL_TIMEOUT (HZ / 4) 152 153 #define SMALL_PACKET_SIZE (256 - NET_IP_ALIGN) 154 #define HEADER_COPY_SIZE (128 - NET_IP_ALIGN) 155 #define MLX4_LOOPBACK_TEST_PAYLOAD (HEADER_COPY_SIZE - ETH_HLEN) 156 157 #define MLX4_EN_MIN_MTU 46 158 /* VLAN_HLEN is added twice,to support skb vlan tagged with multiple 159 * headers. (For example: ETH_P_8021Q and ETH_P_8021AD). 160 */ 161 #define MLX4_EN_EFF_MTU(mtu) ((mtu) + ETH_HLEN + (2 * VLAN_HLEN)) 162 #define ETH_BCAST 0xffffffffffffULL 163 164 #define MLX4_EN_LOOPBACK_RETRIES 5 165 #define MLX4_EN_LOOPBACK_TIMEOUT 100 166 167 #ifdef MLX4_EN_PERF_STAT 168 /* Number of samples to 'average' */ 169 #define AVG_SIZE 128 170 #define AVG_FACTOR 1024 171 172 #define INC_PERF_COUNTER(cnt) (++(cnt)) 173 #define ADD_PERF_COUNTER(cnt, add) ((cnt) += (add)) 174 #define AVG_PERF_COUNTER(cnt, sample) \ 175 ((cnt) = ((cnt) * (AVG_SIZE - 1) + (sample) * AVG_FACTOR) / AVG_SIZE) 176 #define GET_PERF_COUNTER(cnt) (cnt) 177 #define GET_AVG_PERF_COUNTER(cnt) ((cnt) / AVG_FACTOR) 178 179 #else 180 181 #define INC_PERF_COUNTER(cnt) do {} while (0) 182 #define ADD_PERF_COUNTER(cnt, add) do {} while (0) 183 #define AVG_PERF_COUNTER(cnt, sample) do {} while (0) 184 #define GET_PERF_COUNTER(cnt) (0) 185 #define GET_AVG_PERF_COUNTER(cnt) (0) 186 #endif /* MLX4_EN_PERF_STAT */ 187 188 /* Constants for TX flow */ 189 enum { 190 MAX_INLINE = 104, /* 128 - 16 - 4 - 4 */ 191 MAX_BF = 256, 192 MIN_PKT_LEN = 17, 193 }; 194 195 /* 196 * Configurables 197 */ 198 199 enum cq_type { 200 /* keep tx types first */ 201 TX, 202 TX_XDP, 203 #define MLX4_EN_NUM_TX_TYPES (TX_XDP + 1) 204 RX, 205 }; 206 207 208 /* 209 * Useful macros 210 */ 211 #define ROUNDUP_LOG2(x) ilog2(roundup_pow_of_two(x)) 212 #define XNOR(x, y) (!(x) == !(y)) 213 214 215 struct mlx4_en_tx_info { 216 union { 217 struct sk_buff *skb; 218 struct page *page; 219 }; 220 dma_addr_t map0_dma; 221 u32 map0_byte_count; 222 u32 nr_txbb; 223 u32 nr_bytes; 224 u8 linear; 225 u8 data_offset; 226 u8 inl; 227 u8 ts_requested; 228 u8 nr_maps; 229 } ____cacheline_aligned_in_smp; 230 231 232 #define MLX4_EN_BIT_DESC_OWN 0x80000000 233 #define CTRL_SIZE sizeof(struct mlx4_wqe_ctrl_seg) 234 #define MLX4_EN_MEMTYPE_PAD 0x100 235 #define DS_SIZE sizeof(struct mlx4_wqe_data_seg) 236 237 238 struct mlx4_en_tx_desc { 239 struct mlx4_wqe_ctrl_seg ctrl; 240 union { 241 struct mlx4_wqe_data_seg data; /* at least one data segment */ 242 struct mlx4_wqe_lso_seg lso; 243 struct mlx4_wqe_inline_seg inl; 244 }; 245 }; 246 247 #define MLX4_EN_USE_SRQ 0x01000000 248 249 #define MLX4_EN_CX3_LOW_ID 0x1000 250 #define MLX4_EN_CX3_HIGH_ID 0x1005 251 252 struct mlx4_en_rx_alloc { 253 struct page *page; 254 dma_addr_t dma; 255 u32 page_offset; 256 }; 257 258 #define MLX4_EN_CACHE_SIZE (2 * NAPI_POLL_WEIGHT) 259 260 struct mlx4_en_page_cache { 261 u32 index; 262 struct { 263 struct page *page; 264 dma_addr_t dma; 265 } buf[MLX4_EN_CACHE_SIZE]; 266 }; 267 268 struct mlx4_en_priv; 269 270 struct mlx4_en_tx_ring { 271 /* cache line used and dirtied in tx completion 272 * (mlx4_en_free_tx_buf()) 273 */ 274 u32 last_nr_txbb; 275 u32 cons; 276 unsigned long wake_queue; 277 struct netdev_queue *tx_queue; 278 u32 (*free_tx_desc)(struct mlx4_en_priv *priv, 279 struct mlx4_en_tx_ring *ring, 280 int index, 281 u64 timestamp, int napi_mode); 282 struct mlx4_en_rx_ring *recycle_ring; 283 284 /* cache line used and dirtied in mlx4_en_xmit() */ 285 u32 prod ____cacheline_aligned_in_smp; 286 unsigned int tx_dropped; 287 unsigned long bytes; 288 unsigned long packets; 289 unsigned long tx_csum; 290 unsigned long tso_packets; 291 unsigned long xmit_more; 292 struct mlx4_bf bf; 293 294 /* Following part should be mostly read */ 295 __be32 doorbell_qpn; 296 __be32 mr_key; 297 u32 size; /* number of TXBBs */ 298 u32 size_mask; 299 u32 full_size; 300 u32 buf_size; 301 void *buf; 302 struct mlx4_en_tx_info *tx_info; 303 int qpn; 304 u8 queue_index; 305 bool bf_enabled; 306 bool bf_alloced; 307 u8 hwtstamp_tx_type; 308 u8 *bounce_buf; 309 310 /* Not used in fast path 311 * Only queue_stopped might be used if BQL is not properly working. 312 */ 313 unsigned long queue_stopped; 314 struct mlx4_hwq_resources sp_wqres; 315 struct mlx4_qp sp_qp; 316 struct mlx4_qp_context sp_context; 317 cpumask_t sp_affinity_mask; 318 enum mlx4_qp_state sp_qp_state; 319 u16 sp_stride; 320 u16 sp_cqn; /* index of port CQ associated with this ring */ 321 } ____cacheline_aligned_in_smp; 322 323 struct mlx4_en_rx_desc { 324 /* actual number of entries depends on rx ring stride */ 325 struct mlx4_wqe_data_seg data[0]; 326 }; 327 328 struct mlx4_en_rx_ring { 329 struct mlx4_hwq_resources wqres; 330 u32 size ; /* number of Rx descs*/ 331 u32 actual_size; 332 u32 size_mask; 333 u16 stride; 334 u16 log_stride; 335 u16 cqn; /* index of port CQ associated with this ring */ 336 u32 prod; 337 u32 cons; 338 u32 buf_size; 339 u8 fcs_del; 340 void *buf; 341 void *rx_info; 342 struct bpf_prog __rcu *xdp_prog; 343 struct mlx4_en_page_cache page_cache; 344 unsigned long bytes; 345 unsigned long packets; 346 unsigned long csum_ok; 347 unsigned long csum_none; 348 unsigned long csum_complete; 349 unsigned long rx_alloc_pages; 350 unsigned long xdp_drop; 351 unsigned long xdp_tx; 352 unsigned long xdp_tx_full; 353 unsigned long dropped; 354 int hwtstamp_rx_filter; 355 cpumask_var_t affinity_mask; 356 }; 357 358 struct mlx4_en_cq { 359 struct mlx4_cq mcq; 360 struct mlx4_hwq_resources wqres; 361 int ring; 362 struct net_device *dev; 363 union { 364 struct napi_struct napi; 365 bool xdp_busy; 366 }; 367 int size; 368 int buf_size; 369 int vector; 370 enum cq_type type; 371 u16 moder_time; 372 u16 moder_cnt; 373 struct mlx4_cqe *buf; 374 #define MLX4_EN_OPCODE_ERROR 0x1e 375 376 struct irq_desc *irq_desc; 377 }; 378 379 struct mlx4_en_port_profile { 380 u32 flags; 381 u32 tx_ring_num[MLX4_EN_NUM_TX_TYPES]; 382 u32 rx_ring_num; 383 u32 tx_ring_size; 384 u32 rx_ring_size; 385 u8 num_tx_rings_p_up; 386 u8 rx_pause; 387 u8 rx_ppp; 388 u8 tx_pause; 389 u8 tx_ppp; 390 u8 num_up; 391 int rss_rings; 392 int inline_thold; 393 struct hwtstamp_config hwtstamp_config; 394 }; 395 396 struct mlx4_en_profile { 397 int udp_rss; 398 u8 rss_mask; 399 u32 active_ports; 400 u32 small_pkt_int; 401 u8 no_reset; 402 u8 max_num_tx_rings_p_up; 403 struct mlx4_en_port_profile prof[MLX4_MAX_PORTS + 1]; 404 }; 405 406 struct mlx4_en_dev { 407 struct mlx4_dev *dev; 408 struct pci_dev *pdev; 409 struct mutex state_lock; 410 struct net_device *pndev[MLX4_MAX_PORTS + 1]; 411 struct net_device *upper[MLX4_MAX_PORTS + 1]; 412 u32 port_cnt; 413 bool device_up; 414 struct mlx4_en_profile profile; 415 u32 LSO_support; 416 struct workqueue_struct *workqueue; 417 struct device *dma_device; 418 void __iomem *uar_map; 419 struct mlx4_uar priv_uar; 420 struct mlx4_mr mr; 421 u32 priv_pdn; 422 spinlock_t uar_lock; 423 u8 mac_removed[MLX4_MAX_PORTS + 1]; 424 u32 nominal_c_mult; 425 struct cyclecounter cycles; 426 seqlock_t clock_lock; 427 struct timecounter clock; 428 unsigned long last_overflow_check; 429 struct ptp_clock *ptp_clock; 430 struct ptp_clock_info ptp_clock_info; 431 struct notifier_block nb; 432 }; 433 434 435 struct mlx4_en_rss_map { 436 int base_qpn; 437 struct mlx4_qp qps[MAX_RX_RINGS]; 438 enum mlx4_qp_state state[MAX_RX_RINGS]; 439 struct mlx4_qp *indir_qp; 440 enum mlx4_qp_state indir_state; 441 }; 442 443 enum mlx4_en_port_flag { 444 MLX4_EN_PORT_ANC = 1<<0, /* Auto-negotiation complete */ 445 MLX4_EN_PORT_ANE = 1<<1, /* Auto-negotiation enabled */ 446 }; 447 448 struct mlx4_en_port_state { 449 int link_state; 450 int link_speed; 451 int transceiver; 452 u32 flags; 453 }; 454 455 enum mlx4_en_mclist_act { 456 MCLIST_NONE, 457 MCLIST_REM, 458 MCLIST_ADD, 459 }; 460 461 struct mlx4_en_mc_list { 462 struct list_head list; 463 enum mlx4_en_mclist_act action; 464 u8 addr[ETH_ALEN]; 465 u64 reg_id; 466 u64 tunnel_reg_id; 467 }; 468 469 struct mlx4_en_frag_info { 470 u16 frag_size; 471 u32 frag_stride; 472 }; 473 474 #ifdef CONFIG_MLX4_EN_DCB 475 /* Minimal TC BW - setting to 0 will block traffic */ 476 #define MLX4_EN_BW_MIN 1 477 #define MLX4_EN_BW_MAX 100 /* Utilize 100% of the line */ 478 479 #define MLX4_EN_TC_ETS 7 480 481 enum dcb_pfc_type { 482 pfc_disabled = 0, 483 pfc_enabled_full, 484 pfc_enabled_tx, 485 pfc_enabled_rx 486 }; 487 488 struct mlx4_en_cee_config { 489 bool pfc_state; 490 enum dcb_pfc_type dcb_pfc[MLX4_EN_NUM_UP_HIGH]; 491 }; 492 #endif 493 494 struct ethtool_flow_id { 495 struct list_head list; 496 struct ethtool_rx_flow_spec flow_spec; 497 u64 id; 498 }; 499 500 enum { 501 MLX4_EN_FLAG_PROMISC = (1 << 0), 502 MLX4_EN_FLAG_MC_PROMISC = (1 << 1), 503 /* whether we need to enable hardware loopback by putting dmac 504 * in Tx WQE 505 */ 506 MLX4_EN_FLAG_ENABLE_HW_LOOPBACK = (1 << 2), 507 /* whether we need to drop packets that hardware loopback-ed */ 508 MLX4_EN_FLAG_RX_FILTER_NEEDED = (1 << 3), 509 MLX4_EN_FLAG_FORCE_PROMISC = (1 << 4), 510 MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP = (1 << 5), 511 #ifdef CONFIG_MLX4_EN_DCB 512 MLX4_EN_FLAG_DCB_ENABLED = (1 << 6), 513 #endif 514 }; 515 516 #define PORT_BEACON_MAX_LIMIT (65535) 517 #define MLX4_EN_MAC_HASH_SIZE (1 << BITS_PER_BYTE) 518 #define MLX4_EN_MAC_HASH_IDX 5 519 520 struct mlx4_en_stats_bitmap { 521 DECLARE_BITMAP(bitmap, NUM_ALL_STATS); 522 struct mutex mutex; /* for mutual access to stats bitmap */ 523 }; 524 525 struct mlx4_en_priv { 526 struct mlx4_en_dev *mdev; 527 struct mlx4_en_port_profile *prof; 528 struct net_device *dev; 529 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 530 struct mlx4_en_port_state port_state; 531 spinlock_t stats_lock; 532 struct ethtool_flow_id ethtool_rules[MAX_NUM_OF_FS_RULES]; 533 /* To allow rules removal while port is going down */ 534 struct list_head ethtool_list; 535 536 unsigned long last_moder_packets[MAX_RX_RINGS]; 537 unsigned long last_moder_tx_packets; 538 unsigned long last_moder_bytes[MAX_RX_RINGS]; 539 unsigned long last_moder_jiffies; 540 int last_moder_time[MAX_RX_RINGS]; 541 u16 rx_usecs; 542 u16 rx_frames; 543 u16 tx_usecs; 544 u16 tx_frames; 545 u32 pkt_rate_low; 546 u16 rx_usecs_low; 547 u32 pkt_rate_high; 548 u16 rx_usecs_high; 549 u16 sample_interval; 550 u16 adaptive_rx_coal; 551 u32 msg_enable; 552 u32 loopback_ok; 553 u32 validate_loopback; 554 555 struct mlx4_hwq_resources res; 556 int link_state; 557 int last_link_state; 558 bool port_up; 559 int port; 560 int registered; 561 int allocated; 562 int stride; 563 unsigned char current_mac[ETH_ALEN + 2]; 564 int mac_index; 565 unsigned max_mtu; 566 int base_qpn; 567 int cqe_factor; 568 int cqe_size; 569 570 struct mlx4_en_rss_map rss_map; 571 __be32 ctrl_flags; 572 u32 flags; 573 u8 num_tx_rings_p_up; 574 u32 tx_work_limit; 575 u32 tx_ring_num[MLX4_EN_NUM_TX_TYPES]; 576 u32 rx_ring_num; 577 u32 rx_skb_size; 578 struct mlx4_en_frag_info frag_info[MLX4_EN_MAX_RX_FRAGS]; 579 u8 num_frags; 580 u8 log_rx_info; 581 u8 dma_dir; 582 u16 rx_headroom; 583 584 struct mlx4_en_tx_ring **tx_ring[MLX4_EN_NUM_TX_TYPES]; 585 struct mlx4_en_rx_ring *rx_ring[MAX_RX_RINGS]; 586 struct mlx4_en_cq **tx_cq[MLX4_EN_NUM_TX_TYPES]; 587 struct mlx4_en_cq *rx_cq[MAX_RX_RINGS]; 588 struct mlx4_qp drop_qp; 589 struct work_struct rx_mode_task; 590 struct work_struct watchdog_task; 591 struct work_struct linkstate_task; 592 struct delayed_work stats_task; 593 struct delayed_work service_task; 594 struct work_struct vxlan_add_task; 595 struct work_struct vxlan_del_task; 596 struct mlx4_en_perf_stats pstats; 597 struct mlx4_en_pkt_stats pkstats; 598 struct mlx4_en_counter_stats pf_stats; 599 struct mlx4_en_flow_stats_rx rx_priority_flowstats[MLX4_NUM_PRIORITIES]; 600 struct mlx4_en_flow_stats_tx tx_priority_flowstats[MLX4_NUM_PRIORITIES]; 601 struct mlx4_en_flow_stats_rx rx_flowstats; 602 struct mlx4_en_flow_stats_tx tx_flowstats; 603 struct mlx4_en_port_stats port_stats; 604 struct mlx4_en_xdp_stats xdp_stats; 605 struct mlx4_en_stats_bitmap stats_bitmap; 606 struct list_head mc_list; 607 struct list_head curr_list; 608 u64 broadcast_id; 609 struct mlx4_en_stat_out_mbox hw_stats; 610 int vids[128]; 611 bool wol; 612 struct device *ddev; 613 struct hlist_head mac_hash[MLX4_EN_MAC_HASH_SIZE]; 614 struct hwtstamp_config hwtstamp_config; 615 u32 counter_index; 616 617 #ifdef CONFIG_MLX4_EN_DCB 618 #define MLX4_EN_DCB_ENABLED 0x3 619 struct ieee_ets ets; 620 u16 maxrate[IEEE_8021QAZ_MAX_TCS]; 621 enum dcbnl_cndd_states cndd_state[IEEE_8021QAZ_MAX_TCS]; 622 struct mlx4_en_cee_config cee_config; 623 u8 dcbx_cap; 624 #endif 625 #ifdef CONFIG_RFS_ACCEL 626 spinlock_t filters_lock; 627 int last_filter_id; 628 struct list_head filters; 629 struct hlist_head filter_hash[1 << MLX4_EN_FILTER_HASH_SHIFT]; 630 #endif 631 u64 tunnel_reg_id; 632 __be16 vxlan_port; 633 634 u32 pflags; 635 u8 rss_key[MLX4_EN_RSS_KEY_SIZE]; 636 u8 rss_hash_fn; 637 }; 638 639 enum mlx4_en_wol { 640 MLX4_EN_WOL_MAGIC = (1ULL << 61), 641 MLX4_EN_WOL_ENABLED = (1ULL << 62), 642 }; 643 644 struct mlx4_mac_entry { 645 struct hlist_node hlist; 646 unsigned char mac[ETH_ALEN + 2]; 647 u64 reg_id; 648 struct rcu_head rcu; 649 }; 650 651 static inline struct mlx4_cqe *mlx4_en_get_cqe(void *buf, int idx, int cqe_sz) 652 { 653 return buf + idx * cqe_sz; 654 } 655 656 #define MLX4_EN_WOL_DO_MODIFY (1ULL << 63) 657 658 void mlx4_en_init_ptys2ethtool_map(void); 659 void mlx4_en_update_loopback_state(struct net_device *dev, 660 netdev_features_t features); 661 662 void mlx4_en_destroy_netdev(struct net_device *dev); 663 int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, 664 struct mlx4_en_port_profile *prof); 665 666 int mlx4_en_start_port(struct net_device *dev); 667 void mlx4_en_stop_port(struct net_device *dev, int detach); 668 669 void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev, 670 struct mlx4_en_stats_bitmap *stats_bitmap, 671 u8 rx_ppp, u8 rx_pause, 672 u8 tx_ppp, u8 tx_pause); 673 674 int mlx4_en_try_alloc_resources(struct mlx4_en_priv *priv, 675 struct mlx4_en_priv *tmp, 676 struct mlx4_en_port_profile *prof, 677 bool carry_xdp_prog); 678 void mlx4_en_safe_replace_resources(struct mlx4_en_priv *priv, 679 struct mlx4_en_priv *tmp); 680 681 int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq, 682 int entries, int ring, enum cq_type mode, int node); 683 void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq); 684 int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, 685 int cq_idx); 686 void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); 687 int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); 688 void mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); 689 690 void mlx4_en_tx_irq(struct mlx4_cq *mcq); 691 u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb, 692 void *accel_priv, select_queue_fallback_t fallback); 693 netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev); 694 netdev_tx_t mlx4_en_xmit_frame(struct mlx4_en_rx_ring *rx_ring, 695 struct mlx4_en_rx_alloc *frame, 696 struct mlx4_en_priv *priv, unsigned int length, 697 int tx_ind, bool *doorbell_pending); 698 void mlx4_en_xmit_doorbell(struct mlx4_en_tx_ring *ring); 699 bool mlx4_en_rx_recycle(struct mlx4_en_rx_ring *ring, 700 struct mlx4_en_rx_alloc *frame); 701 702 int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, 703 struct mlx4_en_tx_ring **pring, 704 u32 size, u16 stride, 705 int node, int queue_index); 706 void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, 707 struct mlx4_en_tx_ring **pring); 708 void mlx4_en_init_tx_xdp_ring_descs(struct mlx4_en_priv *priv, 709 struct mlx4_en_tx_ring *ring); 710 int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv, 711 struct mlx4_en_tx_ring *ring, 712 int cq, int user_prio); 713 void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv, 714 struct mlx4_en_tx_ring *ring); 715 void mlx4_en_set_num_rx_rings(struct mlx4_en_dev *mdev); 716 void mlx4_en_recover_from_oom(struct mlx4_en_priv *priv); 717 int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv, 718 struct mlx4_en_rx_ring **pring, 719 u32 size, u16 stride, int node); 720 void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv, 721 struct mlx4_en_rx_ring **pring, 722 u32 size, u16 stride); 723 int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv); 724 void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv, 725 struct mlx4_en_rx_ring *ring); 726 int mlx4_en_process_rx_cq(struct net_device *dev, 727 struct mlx4_en_cq *cq, 728 int budget); 729 int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget); 730 int mlx4_en_poll_tx_cq(struct napi_struct *napi, int budget); 731 bool mlx4_en_process_tx_cq(struct net_device *dev, 732 struct mlx4_en_cq *cq, int napi_budget); 733 u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv, 734 struct mlx4_en_tx_ring *ring, 735 int index, u64 timestamp, 736 int napi_mode); 737 u32 mlx4_en_recycle_tx_desc(struct mlx4_en_priv *priv, 738 struct mlx4_en_tx_ring *ring, 739 int index, u64 timestamp, 740 int napi_mode); 741 void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride, 742 int is_tx, int rss, int qpn, int cqn, int user_prio, 743 struct mlx4_qp_context *context); 744 void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event); 745 int mlx4_en_change_mcast_lb(struct mlx4_en_priv *priv, struct mlx4_qp *qp, 746 int loopback); 747 void mlx4_en_calc_rx_buf(struct net_device *dev); 748 int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv); 749 void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv); 750 int mlx4_en_create_drop_qp(struct mlx4_en_priv *priv); 751 void mlx4_en_destroy_drop_qp(struct mlx4_en_priv *priv); 752 int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring); 753 void mlx4_en_rx_irq(struct mlx4_cq *mcq); 754 755 int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode); 756 int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv); 757 758 void mlx4_en_fold_software_stats(struct net_device *dev); 759 int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset); 760 int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port); 761 762 #ifdef CONFIG_MLX4_EN_DCB 763 extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_ops; 764 extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_pfc_ops; 765 #endif 766 767 int mlx4_en_setup_tc(struct net_device *dev, u8 up); 768 int mlx4_en_alloc_tx_queue_per_tc(struct net_device *dev, u8 tc); 769 770 #ifdef CONFIG_RFS_ACCEL 771 void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv); 772 #endif 773 774 #define MLX4_EN_NUM_SELF_TEST 5 775 void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf); 776 void mlx4_en_ptp_overflow_check(struct mlx4_en_dev *mdev); 777 778 #define DEV_FEATURE_CHANGED(dev, new_features, feature) \ 779 ((dev->features & feature) ^ (new_features & feature)) 780 781 int mlx4_en_reset_config(struct net_device *dev, 782 struct hwtstamp_config ts_config, 783 netdev_features_t new_features); 784 void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev, 785 struct mlx4_en_stats_bitmap *stats_bitmap, 786 u8 rx_ppp, u8 rx_pause, 787 u8 tx_ppp, u8 tx_pause); 788 int mlx4_en_netdev_event(struct notifier_block *this, 789 unsigned long event, void *ptr); 790 791 /* 792 * Functions for time stamping 793 */ 794 u64 mlx4_en_get_cqe_ts(struct mlx4_cqe *cqe); 795 void mlx4_en_fill_hwtstamps(struct mlx4_en_dev *mdev, 796 struct skb_shared_hwtstamps *hwts, 797 u64 timestamp); 798 void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev); 799 void mlx4_en_remove_timestamp(struct mlx4_en_dev *mdev); 800 801 /* Globals 802 */ 803 extern const struct ethtool_ops mlx4_en_ethtool_ops; 804 805 806 807 /* 808 * printk / logging functions 809 */ 810 811 __printf(3, 4) 812 void en_print(const char *level, const struct mlx4_en_priv *priv, 813 const char *format, ...); 814 815 #define en_dbg(mlevel, priv, format, ...) \ 816 do { \ 817 if (NETIF_MSG_##mlevel & (priv)->msg_enable) \ 818 en_print(KERN_DEBUG, priv, format, ##__VA_ARGS__); \ 819 } while (0) 820 #define en_warn(priv, format, ...) \ 821 en_print(KERN_WARNING, priv, format, ##__VA_ARGS__) 822 #define en_err(priv, format, ...) \ 823 en_print(KERN_ERR, priv, format, ##__VA_ARGS__) 824 #define en_info(priv, format, ...) \ 825 en_print(KERN_INFO, priv, format, ##__VA_ARGS__) 826 827 #define mlx4_err(mdev, format, ...) \ 828 pr_err(DRV_NAME " %s: " format, \ 829 dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) 830 #define mlx4_info(mdev, format, ...) \ 831 pr_info(DRV_NAME " %s: " format, \ 832 dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) 833 #define mlx4_warn(mdev, format, ...) \ 834 pr_warn(DRV_NAME " %s: " format, \ 835 dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) 836 837 #endif 838