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/ethtool.h> 40 #include <linux/list.h> 41 #include <linux/mutex.h> 42 #include <linux/netdevice.h> 43 #include <linux/if_vlan.h> 44 #include <linux/net_tstamp.h> 45 #ifdef CONFIG_MLX4_EN_DCB 46 #include <linux/dcbnl.h> 47 #endif 48 #include <linux/cpu_rmap.h> 49 #include <linux/ptp_clock_kernel.h> 50 #include <linux/irq.h> 51 #include <net/xdp.h> 52 #include <linux/notifier.h> 53 54 #include <linux/mlx4/device.h> 55 #include <linux/mlx4/qp.h> 56 #include <linux/mlx4/cq.h> 57 #include <linux/mlx4/srq.h> 58 #include <linux/mlx4/doorbell.h> 59 #include <linux/mlx4/cmd.h> 60 61 #include "en_port.h" 62 #include "mlx4_stats.h" 63 64 #define DRV_NAME "mlx4_en" 65 #define DRV_VERSION "4.0-0" 66 67 #define MLX4_EN_MSG_LEVEL (NETIF_MSG_LINK | NETIF_MSG_IFDOWN) 68 69 /* 70 * Device constants 71 */ 72 73 74 #define MLX4_EN_PAGE_SHIFT 12 75 #define MLX4_EN_PAGE_SIZE (1 << MLX4_EN_PAGE_SHIFT) 76 #define DEF_RX_RINGS 16 77 #define MAX_RX_RINGS 128 78 #define MIN_RX_RINGS 1 79 #define LOG_TXBB_SIZE 6 80 #define TXBB_SIZE BIT(LOG_TXBB_SIZE) 81 #define HEADROOM (2048 / TXBB_SIZE + 1) 82 #define STAMP_STRIDE 64 83 #define STAMP_DWORDS (STAMP_STRIDE / 4) 84 #define STAMP_SHIFT 31 85 #define STAMP_VAL 0x7fffffff 86 #define STATS_DELAY (HZ / 4) 87 #define SERVICE_TASK_DELAY (HZ / 4) 88 #define MAX_NUM_OF_FS_RULES 256 89 90 #define MLX4_EN_FILTER_HASH_SHIFT 4 91 #define MLX4_EN_FILTER_EXPIRY_QUOTA 60 92 93 #define CTRL_SIZE sizeof(struct mlx4_wqe_ctrl_seg) 94 #define DS_SIZE sizeof(struct mlx4_wqe_data_seg) 95 96 /* Maximal size of the bounce buffer: 97 * 256 bytes for LSO headers. 98 * CTRL_SIZE for control desc. 99 * DS_SIZE if skb->head contains some payload. 100 * MAX_SKB_FRAGS frags. 101 */ 102 #define MLX4_TX_BOUNCE_BUFFER_SIZE \ 103 ALIGN(256 + CTRL_SIZE + DS_SIZE + MAX_SKB_FRAGS * DS_SIZE, TXBB_SIZE) 104 105 #define MLX4_MAX_DESC_TXBBS (MLX4_TX_BOUNCE_BUFFER_SIZE / TXBB_SIZE) 106 107 /* 108 * OS related constants and tunables 109 */ 110 111 #define MLX4_EN_PRIV_FLAGS_BLUEFLAME 1 112 #define MLX4_EN_PRIV_FLAGS_PHV 2 113 114 #define MLX4_EN_WATCHDOG_TIMEOUT (15 * HZ) 115 116 /* Use the maximum between 16384 and a single page */ 117 #define MLX4_EN_ALLOC_SIZE PAGE_ALIGN(16384) 118 119 #define MLX4_EN_MAX_RX_FRAGS 4 120 121 /* Maximum ring sizes */ 122 #define MLX4_EN_MAX_TX_SIZE 8192 123 #define MLX4_EN_MAX_RX_SIZE 8192 124 125 /* Minimum ring size for our page-allocation scheme to work */ 126 #define MLX4_EN_MIN_RX_SIZE (MLX4_EN_ALLOC_SIZE / SMP_CACHE_BYTES) 127 #define MLX4_EN_MIN_TX_SIZE (4096 / TXBB_SIZE) 128 129 #define MLX4_EN_SMALL_PKT_SIZE 64 130 #define MLX4_EN_MIN_TX_RING_P_UP 1 131 #define MLX4_EN_MAX_TX_RING_P_UP 32 132 #define MLX4_EN_NUM_UP_LOW 1 133 #define MLX4_EN_NUM_UP_HIGH 8 134 #define MLX4_EN_DEF_RX_RING_SIZE 1024 135 #define MLX4_EN_DEF_TX_RING_SIZE MLX4_EN_DEF_RX_RING_SIZE 136 #define MAX_TX_RINGS (MLX4_EN_MAX_TX_RING_P_UP * \ 137 MLX4_EN_NUM_UP_HIGH) 138 139 #define MLX4_EN_DEFAULT_TX_WORK 256 140 141 /* Target number of packets to coalesce with interrupt moderation */ 142 #define MLX4_EN_RX_COAL_TARGET 44 143 #define MLX4_EN_RX_COAL_TIME 0x10 144 145 #define MLX4_EN_TX_COAL_PKTS 16 146 #define MLX4_EN_TX_COAL_TIME 0x10 147 148 #define MLX4_EN_MAX_COAL_PKTS U16_MAX 149 #define MLX4_EN_MAX_COAL_TIME U16_MAX 150 151 #define MLX4_EN_RX_RATE_LOW 400000 152 #define MLX4_EN_RX_COAL_TIME_LOW 0 153 #define MLX4_EN_RX_RATE_HIGH 450000 154 #define MLX4_EN_RX_COAL_TIME_HIGH 128 155 #define MLX4_EN_RX_SIZE_THRESH 1024 156 #define MLX4_EN_RX_RATE_THRESH (1000000 / MLX4_EN_RX_COAL_TIME_HIGH) 157 #define MLX4_EN_SAMPLE_INTERVAL 0 158 #define MLX4_EN_AVG_PKT_SMALL 256 159 160 #define MLX4_EN_AUTO_CONF 0xffff 161 162 #define MLX4_EN_DEF_RX_PAUSE 1 163 #define MLX4_EN_DEF_TX_PAUSE 1 164 165 /* Interval between successive polls in the Tx routine when polling is used 166 instead of interrupts (in per-core Tx rings) - should be power of 2 */ 167 #define MLX4_EN_TX_POLL_MODER 16 168 #define MLX4_EN_TX_POLL_TIMEOUT (HZ / 4) 169 170 #define SMALL_PACKET_SIZE (256 - NET_IP_ALIGN) 171 #define HEADER_COPY_SIZE (128 - NET_IP_ALIGN) 172 #define MLX4_LOOPBACK_TEST_PAYLOAD (HEADER_COPY_SIZE - ETH_HLEN) 173 #define PREAMBLE_LEN 8 174 #define MLX4_SELFTEST_LB_MIN_MTU (MLX4_LOOPBACK_TEST_PAYLOAD + NET_IP_ALIGN + \ 175 ETH_HLEN + PREAMBLE_LEN) 176 177 /* VLAN_HLEN is added twice,to support skb vlan tagged with multiple 178 * headers. (For example: ETH_P_8021Q and ETH_P_8021AD). 179 */ 180 #define MLX4_EN_EFF_MTU(mtu) ((mtu) + ETH_HLEN + (2 * VLAN_HLEN)) 181 #define ETH_BCAST 0xffffffffffffULL 182 183 #define MLX4_EN_LOOPBACK_RETRIES 5 184 #define MLX4_EN_LOOPBACK_TIMEOUT 100 185 186 /* Constants for TX flow */ 187 enum { 188 MAX_INLINE = 104, /* 128 - 16 - 4 - 4 */ 189 MAX_BF = 256, 190 MIN_PKT_LEN = 17, 191 }; 192 193 /* 194 * Configurables 195 */ 196 197 enum cq_type { 198 /* keep tx types first */ 199 TX, 200 TX_XDP, 201 #define MLX4_EN_NUM_TX_TYPES (TX_XDP + 1) 202 RX, 203 }; 204 205 206 /* 207 * Useful macros 208 */ 209 #define ROUNDUP_LOG2(x) ilog2(roundup_pow_of_two(x)) 210 #define XNOR(x, y) (!(x) == !(y)) 211 212 213 struct mlx4_en_tx_info { 214 union { 215 struct sk_buff *skb; 216 struct page *page; 217 }; 218 dma_addr_t map0_dma; 219 u32 map0_byte_count; 220 u32 nr_txbb; 221 u32 nr_bytes; 222 u8 linear; 223 u8 data_offset; 224 u8 inl; 225 u8 ts_requested; 226 u8 nr_maps; 227 } ____cacheline_aligned_in_smp; 228 229 230 #define MLX4_EN_BIT_DESC_OWN 0x80000000 231 #define MLX4_EN_MEMTYPE_PAD 0x100 232 233 234 struct mlx4_en_tx_desc { 235 struct mlx4_wqe_ctrl_seg ctrl; 236 union { 237 struct mlx4_wqe_data_seg data; /* at least one data segment */ 238 struct mlx4_wqe_lso_seg lso; 239 struct mlx4_wqe_inline_seg inl; 240 }; 241 }; 242 243 #define MLX4_EN_USE_SRQ 0x01000000 244 245 #define MLX4_EN_CX3_LOW_ID 0x1000 246 #define MLX4_EN_CX3_HIGH_ID 0x1005 247 248 struct mlx4_en_rx_alloc { 249 struct page *page; 250 dma_addr_t dma; 251 u32 page_offset; 252 }; 253 254 #define MLX4_EN_CACHE_SIZE (2 * NAPI_POLL_WEIGHT) 255 256 struct mlx4_en_page_cache { 257 u32 index; 258 struct { 259 struct page *page; 260 dma_addr_t dma; 261 } buf[MLX4_EN_CACHE_SIZE]; 262 }; 263 264 enum { 265 MLX4_EN_TX_RING_STATE_RECOVERING, 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 void __iomem *doorbell_address; 296 __be32 doorbell_qpn; 297 __be32 mr_key; 298 u32 size; /* number of TXBBs */ 299 u32 size_mask; 300 u32 full_size; 301 u32 buf_size; 302 void *buf; 303 struct mlx4_en_tx_info *tx_info; 304 int qpn; 305 u8 queue_index; 306 bool bf_enabled; 307 bool bf_alloced; 308 u8 hwtstamp_tx_type; 309 u8 *bounce_buf; 310 311 /* Not used in fast path 312 * Only queue_stopped might be used if BQL is not properly working. 313 */ 314 unsigned long queue_stopped; 315 unsigned long state; 316 struct mlx4_hwq_resources sp_wqres; 317 struct mlx4_qp sp_qp; 318 struct mlx4_qp_context sp_context; 319 cpumask_t sp_affinity_mask; 320 enum mlx4_qp_state sp_qp_state; 321 u16 sp_stride; 322 u16 sp_cqn; /* index of port CQ associated with this ring */ 323 } ____cacheline_aligned_in_smp; 324 325 struct mlx4_en_rx_desc { 326 /* actual number of entries depends on rx ring stride */ 327 DECLARE_FLEX_ARRAY(struct mlx4_wqe_data_seg, data); 328 }; 329 330 struct mlx4_en_rx_ring { 331 struct mlx4_hwq_resources wqres; 332 u32 size ; /* number of Rx descs*/ 333 u32 actual_size; 334 u32 size_mask; 335 u16 stride; 336 u16 log_stride; 337 u16 cqn; /* index of port CQ associated with this ring */ 338 u32 prod; 339 u32 cons; 340 u32 buf_size; 341 u8 fcs_del; 342 void *buf; 343 void *rx_info; 344 struct bpf_prog __rcu *xdp_prog; 345 struct mlx4_en_page_cache page_cache; 346 unsigned long bytes; 347 unsigned long packets; 348 unsigned long csum_ok; 349 unsigned long csum_none; 350 unsigned long csum_complete; 351 unsigned long rx_alloc_pages; 352 unsigned long xdp_drop; 353 unsigned long xdp_redirect; 354 unsigned long xdp_redirect_fail; 355 unsigned long xdp_tx; 356 unsigned long xdp_tx_full; 357 unsigned long dropped; 358 int hwtstamp_rx_filter; 359 cpumask_var_t affinity_mask; 360 struct xdp_rxq_info xdp_rxq; 361 }; 362 363 struct mlx4_en_cq { 364 struct mlx4_cq mcq; 365 struct mlx4_hwq_resources wqres; 366 int ring; 367 struct net_device *dev; 368 union { 369 struct napi_struct napi; 370 bool xdp_busy; 371 }; 372 int size; 373 int buf_size; 374 int vector; 375 enum cq_type type; 376 u16 moder_time; 377 u16 moder_cnt; 378 struct mlx4_cqe *buf; 379 #define MLX4_EN_OPCODE_ERROR 0x1e 380 381 const struct cpumask *aff_mask; 382 }; 383 384 struct mlx4_en_port_profile { 385 u32 flags; 386 u32 tx_ring_num[MLX4_EN_NUM_TX_TYPES]; 387 u32 rx_ring_num; 388 u32 tx_ring_size; 389 u32 rx_ring_size; 390 u8 num_tx_rings_p_up; 391 u8 rx_pause; 392 u8 rx_ppp; 393 u8 tx_pause; 394 u8 tx_ppp; 395 u8 num_up; 396 int rss_rings; 397 int inline_thold; 398 struct hwtstamp_config hwtstamp_config; 399 }; 400 401 struct mlx4_en_profile { 402 int udp_rss; 403 u8 rss_mask; 404 u32 active_ports; 405 u32 small_pkt_int; 406 u8 no_reset; 407 u8 max_num_tx_rings_p_up; 408 struct mlx4_en_port_profile prof[MLX4_MAX_PORTS + 1]; 409 }; 410 411 struct mlx4_en_dev { 412 struct mlx4_dev *dev; 413 struct pci_dev *pdev; 414 struct mutex state_lock; 415 struct net_device *pndev[MLX4_MAX_PORTS + 1]; 416 struct net_device *upper[MLX4_MAX_PORTS + 1]; 417 u32 port_cnt; 418 bool device_up; 419 struct mlx4_en_profile profile; 420 u32 LSO_support; 421 struct workqueue_struct *workqueue; 422 struct device *dma_device; 423 void __iomem *uar_map; 424 struct mlx4_uar priv_uar; 425 struct mlx4_mr mr; 426 u32 priv_pdn; 427 spinlock_t uar_lock; 428 u8 mac_removed[MLX4_MAX_PORTS + 1]; 429 u32 nominal_c_mult; 430 struct cyclecounter cycles; 431 seqlock_t clock_lock; 432 struct timecounter clock; 433 unsigned long last_overflow_check; 434 struct ptp_clock *ptp_clock; 435 struct ptp_clock_info ptp_clock_info; 436 struct notifier_block netdev_nb; 437 struct notifier_block mlx_nb; 438 }; 439 440 441 struct mlx4_en_rss_map { 442 int base_qpn; 443 struct mlx4_qp qps[MAX_RX_RINGS]; 444 enum mlx4_qp_state state[MAX_RX_RINGS]; 445 struct mlx4_qp *indir_qp; 446 enum mlx4_qp_state indir_state; 447 }; 448 449 enum mlx4_en_port_flag { 450 MLX4_EN_PORT_ANC = 1<<0, /* Auto-negotiation complete */ 451 MLX4_EN_PORT_ANE = 1<<1, /* Auto-negotiation enabled */ 452 }; 453 454 struct mlx4_en_port_state { 455 int link_state; 456 int link_speed; 457 int transceiver; 458 u32 flags; 459 }; 460 461 enum mlx4_en_mclist_act { 462 MCLIST_NONE, 463 MCLIST_REM, 464 MCLIST_ADD, 465 }; 466 467 struct mlx4_en_mc_list { 468 struct list_head list; 469 enum mlx4_en_mclist_act action; 470 u8 addr[ETH_ALEN]; 471 u64 reg_id; 472 u64 tunnel_reg_id; 473 }; 474 475 struct mlx4_en_frag_info { 476 u16 frag_size; 477 u32 frag_stride; 478 }; 479 480 #ifdef CONFIG_MLX4_EN_DCB 481 /* Minimal TC BW - setting to 0 will block traffic */ 482 #define MLX4_EN_BW_MIN 1 483 #define MLX4_EN_BW_MAX 100 /* Utilize 100% of the line */ 484 485 #define MLX4_EN_TC_VENDOR 0 486 #define MLX4_EN_TC_ETS 7 487 488 enum dcb_pfc_type { 489 pfc_disabled = 0, 490 pfc_enabled_full, 491 pfc_enabled_tx, 492 pfc_enabled_rx 493 }; 494 495 struct mlx4_en_cee_config { 496 bool pfc_state; 497 enum dcb_pfc_type dcb_pfc[MLX4_EN_NUM_UP_HIGH]; 498 }; 499 #endif 500 501 struct ethtool_flow_id { 502 struct list_head list; 503 struct ethtool_rx_flow_spec flow_spec; 504 u64 id; 505 }; 506 507 enum { 508 MLX4_EN_FLAG_PROMISC = (1 << 0), 509 MLX4_EN_FLAG_MC_PROMISC = (1 << 1), 510 /* whether we need to enable hardware loopback by putting dmac 511 * in Tx WQE 512 */ 513 MLX4_EN_FLAG_ENABLE_HW_LOOPBACK = (1 << 2), 514 /* whether we need to drop packets that hardware loopback-ed */ 515 MLX4_EN_FLAG_RX_FILTER_NEEDED = (1 << 3), 516 MLX4_EN_FLAG_FORCE_PROMISC = (1 << 4), 517 MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP = (1 << 5), 518 #ifdef CONFIG_MLX4_EN_DCB 519 MLX4_EN_FLAG_DCB_ENABLED = (1 << 6), 520 #endif 521 }; 522 523 #define PORT_BEACON_MAX_LIMIT (65535) 524 #define MLX4_EN_MAC_HASH_SIZE (1 << BITS_PER_BYTE) 525 #define MLX4_EN_MAC_HASH_IDX 5 526 527 struct mlx4_en_stats_bitmap { 528 DECLARE_BITMAP(bitmap, NUM_ALL_STATS); 529 struct mutex mutex; /* for mutual access to stats bitmap */ 530 }; 531 532 enum { 533 MLX4_EN_STATE_FLAG_RESTARTING, 534 }; 535 536 struct mlx4_en_priv { 537 struct mlx4_en_dev *mdev; 538 struct mlx4_en_port_profile *prof; 539 struct net_device *dev; 540 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 541 struct mlx4_en_port_state port_state; 542 spinlock_t stats_lock; 543 struct ethtool_flow_id ethtool_rules[MAX_NUM_OF_FS_RULES]; 544 /* To allow rules removal while port is going down */ 545 struct list_head ethtool_list; 546 547 unsigned long last_moder_packets[MAX_RX_RINGS]; 548 unsigned long last_moder_tx_packets; 549 unsigned long last_moder_bytes[MAX_RX_RINGS]; 550 unsigned long last_moder_jiffies; 551 int last_moder_time[MAX_RX_RINGS]; 552 u16 rx_usecs; 553 u16 rx_frames; 554 u16 tx_usecs; 555 u16 tx_frames; 556 u32 pkt_rate_low; 557 u16 rx_usecs_low; 558 u32 pkt_rate_high; 559 u16 rx_usecs_high; 560 u32 sample_interval; 561 u32 adaptive_rx_coal; 562 u32 msg_enable; 563 u32 loopback_ok; 564 u32 validate_loopback; 565 566 struct mlx4_hwq_resources res; 567 int link_state; 568 bool port_up; 569 int port; 570 int registered; 571 int allocated; 572 int stride; 573 unsigned char current_mac[ETH_ALEN + 2]; 574 int mac_index; 575 unsigned max_mtu; 576 int base_qpn; 577 int cqe_factor; 578 int cqe_size; 579 580 struct mlx4_en_rss_map rss_map; 581 __be32 ctrl_flags; 582 u32 flags; 583 u8 num_tx_rings_p_up; 584 u32 tx_work_limit; 585 u32 tx_ring_num[MLX4_EN_NUM_TX_TYPES]; 586 u32 rx_ring_num; 587 u32 rx_skb_size; 588 struct mlx4_en_frag_info frag_info[MLX4_EN_MAX_RX_FRAGS]; 589 u8 num_frags; 590 u8 log_rx_info; 591 u8 dma_dir; 592 u16 rx_headroom; 593 594 struct mlx4_en_tx_ring **tx_ring[MLX4_EN_NUM_TX_TYPES]; 595 struct mlx4_en_rx_ring *rx_ring[MAX_RX_RINGS]; 596 struct mlx4_en_cq **tx_cq[MLX4_EN_NUM_TX_TYPES]; 597 struct mlx4_en_cq *rx_cq[MAX_RX_RINGS]; 598 struct mlx4_qp drop_qp; 599 struct work_struct rx_mode_task; 600 struct work_struct restart_task; 601 struct work_struct linkstate_task; 602 struct delayed_work stats_task; 603 struct delayed_work service_task; 604 struct mlx4_en_pkt_stats pkstats; 605 struct mlx4_en_counter_stats pf_stats; 606 struct mlx4_en_flow_stats_rx rx_priority_flowstats[MLX4_NUM_PRIORITIES]; 607 struct mlx4_en_flow_stats_tx tx_priority_flowstats[MLX4_NUM_PRIORITIES]; 608 struct mlx4_en_flow_stats_rx rx_flowstats; 609 struct mlx4_en_flow_stats_tx tx_flowstats; 610 struct mlx4_en_port_stats port_stats; 611 struct mlx4_en_xdp_stats xdp_stats; 612 struct mlx4_en_phy_stats phy_stats; 613 struct mlx4_en_stats_bitmap stats_bitmap; 614 struct list_head mc_list; 615 struct list_head curr_list; 616 u64 broadcast_id; 617 struct mlx4_en_stat_out_mbox hw_stats; 618 int vids[128]; 619 bool wol; 620 struct device *ddev; 621 struct hlist_head mac_hash[MLX4_EN_MAC_HASH_SIZE]; 622 struct hwtstamp_config hwtstamp_config; 623 u32 counter_index; 624 625 #ifdef CONFIG_MLX4_EN_DCB 626 #define MLX4_EN_DCB_ENABLED 0x3 627 struct ieee_ets ets; 628 u16 maxrate[IEEE_8021QAZ_MAX_TCS]; 629 enum dcbnl_cndd_states cndd_state[IEEE_8021QAZ_MAX_TCS]; 630 struct mlx4_en_cee_config cee_config; 631 u8 dcbx_cap; 632 #endif 633 #ifdef CONFIG_RFS_ACCEL 634 spinlock_t filters_lock; 635 int last_filter_id; 636 struct list_head filters; 637 struct hlist_head filter_hash[1 << MLX4_EN_FILTER_HASH_SHIFT]; 638 #endif 639 u64 tunnel_reg_id; 640 __be16 vxlan_port; 641 642 u32 pflags; 643 u8 rss_key[MLX4_EN_RSS_KEY_SIZE]; 644 u8 rss_hash_fn; 645 unsigned long state; 646 }; 647 648 enum mlx4_en_wol { 649 MLX4_EN_WOL_MAGIC = (1ULL << 61), 650 MLX4_EN_WOL_ENABLED = (1ULL << 62), 651 }; 652 653 struct mlx4_mac_entry { 654 struct hlist_node hlist; 655 unsigned char mac[ETH_ALEN + 2]; 656 u64 reg_id; 657 struct rcu_head rcu; 658 }; 659 mlx4_en_get_cqe(void * buf,int idx,int cqe_sz)660 static inline struct mlx4_cqe *mlx4_en_get_cqe(void *buf, int idx, int cqe_sz) 661 { 662 return buf + idx * cqe_sz; 663 } 664 665 #define MLX4_EN_WOL_DO_MODIFY (1ULL << 63) 666 667 void mlx4_en_init_ptys2ethtool_map(void); 668 void mlx4_en_update_loopback_state(struct net_device *dev, 669 netdev_features_t features); 670 671 void mlx4_en_destroy_netdev(struct net_device *dev); 672 int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, 673 struct mlx4_en_port_profile *prof); 674 675 int mlx4_en_start_port(struct net_device *dev); 676 void mlx4_en_stop_port(struct net_device *dev, int detach); 677 678 void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev, 679 struct mlx4_en_stats_bitmap *stats_bitmap, 680 u8 rx_ppp, u8 rx_pause, 681 u8 tx_ppp, u8 tx_pause); 682 683 int mlx4_en_try_alloc_resources(struct mlx4_en_priv *priv, 684 struct mlx4_en_priv *tmp, 685 struct mlx4_en_port_profile *prof, 686 bool carry_xdp_prog); 687 void mlx4_en_safe_replace_resources(struct mlx4_en_priv *priv, 688 struct mlx4_en_priv *tmp); 689 690 int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq, 691 int entries, int ring, enum cq_type mode, int node); 692 void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq); 693 int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, 694 int cq_idx); 695 void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); 696 int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); 697 void mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); 698 699 void mlx4_en_tx_irq(struct mlx4_cq *mcq); 700 u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb, 701 struct net_device *sb_dev); 702 netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev); 703 netdev_tx_t mlx4_en_xmit_frame(struct mlx4_en_rx_ring *rx_ring, 704 struct mlx4_en_rx_alloc *frame, 705 struct mlx4_en_priv *priv, unsigned int length, 706 int tx_ind, bool *doorbell_pending); 707 void mlx4_en_xmit_doorbell(struct mlx4_en_tx_ring *ring); 708 bool mlx4_en_rx_recycle(struct mlx4_en_rx_ring *ring, 709 struct mlx4_en_rx_alloc *frame); 710 711 int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, 712 struct mlx4_en_tx_ring **pring, 713 u32 size, u16 stride, 714 int node, int queue_index); 715 void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, 716 struct mlx4_en_tx_ring **pring); 717 void mlx4_en_init_tx_xdp_ring_descs(struct mlx4_en_priv *priv, 718 struct mlx4_en_tx_ring *ring); 719 int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv, 720 struct mlx4_en_tx_ring *ring, 721 int cq, int user_prio); 722 void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv, 723 struct mlx4_en_tx_ring *ring); 724 void mlx4_en_set_num_rx_rings(struct mlx4_en_dev *mdev); 725 void mlx4_en_recover_from_oom(struct mlx4_en_priv *priv); 726 int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv, 727 struct mlx4_en_rx_ring **pring, 728 u32 size, u16 stride, int node, int queue_index); 729 void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv, 730 struct mlx4_en_rx_ring **pring, 731 u32 size, u16 stride); 732 int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv); 733 void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv, 734 struct mlx4_en_rx_ring *ring); 735 int mlx4_en_process_rx_cq(struct net_device *dev, 736 struct mlx4_en_cq *cq, 737 int budget); 738 int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget); 739 int mlx4_en_poll_tx_cq(struct napi_struct *napi, int budget); 740 int mlx4_en_process_tx_cq(struct net_device *dev, 741 struct mlx4_en_cq *cq, int napi_budget); 742 u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv, 743 struct mlx4_en_tx_ring *ring, 744 int index, u64 timestamp, 745 int napi_mode); 746 u32 mlx4_en_recycle_tx_desc(struct mlx4_en_priv *priv, 747 struct mlx4_en_tx_ring *ring, 748 int index, u64 timestamp, 749 int napi_mode); 750 void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride, 751 int is_tx, int rss, int qpn, int cqn, int user_prio, 752 struct mlx4_qp_context *context); 753 void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event); 754 int mlx4_en_change_mcast_lb(struct mlx4_en_priv *priv, struct mlx4_qp *qp, 755 int loopback); 756 void mlx4_en_calc_rx_buf(struct net_device *dev); 757 int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv); 758 void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv); 759 int mlx4_en_create_drop_qp(struct mlx4_en_priv *priv); 760 void mlx4_en_destroy_drop_qp(struct mlx4_en_priv *priv); 761 int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring); 762 void mlx4_en_rx_irq(struct mlx4_cq *mcq); 763 764 int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode); 765 int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv); 766 767 void mlx4_en_fold_software_stats(struct net_device *dev); 768 int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset); 769 int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port); 770 771 #ifdef CONFIG_MLX4_EN_DCB 772 extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_ops; 773 extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_pfc_ops; 774 #endif 775 776 int mlx4_en_setup_tc(struct net_device *dev, u8 up); 777 int mlx4_en_alloc_tx_queue_per_tc(struct net_device *dev, u8 tc); 778 779 #ifdef CONFIG_RFS_ACCEL 780 void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv); 781 #endif 782 783 #define MLX4_EN_NUM_SELF_TEST 5 784 void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf); 785 void mlx4_en_ptp_overflow_check(struct mlx4_en_dev *mdev); 786 787 #define DEV_FEATURE_CHANGED(dev, new_features, feature) \ 788 ((dev->features & feature) ^ (new_features & feature)) 789 790 int mlx4_en_moderation_update(struct mlx4_en_priv *priv); 791 int mlx4_en_reset_config(struct net_device *dev, 792 struct hwtstamp_config ts_config, 793 netdev_features_t new_features); 794 void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev, 795 struct mlx4_en_stats_bitmap *stats_bitmap, 796 u8 rx_ppp, u8 rx_pause, 797 u8 tx_ppp, u8 tx_pause); 798 int mlx4_en_netdev_event(struct notifier_block *this, 799 unsigned long event, void *ptr); 800 801 struct xdp_md; 802 int mlx4_en_xdp_rx_timestamp(const struct xdp_md *ctx, u64 *timestamp); 803 int mlx4_en_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash, 804 enum xdp_rss_hash_type *rss_type); 805 806 /* 807 * Functions for time stamping 808 */ 809 u64 mlx4_en_get_cqe_ts(struct mlx4_cqe *cqe); 810 u64 mlx4_en_get_hwtstamp(struct mlx4_en_dev *mdev, u64 timestamp); 811 void mlx4_en_fill_hwtstamps(struct mlx4_en_dev *mdev, 812 struct skb_shared_hwtstamps *hwts, 813 u64 timestamp); 814 void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev); 815 void mlx4_en_remove_timestamp(struct mlx4_en_dev *mdev); 816 817 /* Globals 818 */ 819 extern const struct ethtool_ops mlx4_en_ethtool_ops; 820 821 822 823 /* 824 * printk / logging functions 825 */ 826 827 __printf(3, 4) 828 void en_print(const char *level, const struct mlx4_en_priv *priv, 829 const char *format, ...); 830 831 #define en_dbg(mlevel, priv, format, ...) \ 832 do { \ 833 if (NETIF_MSG_##mlevel & (priv)->msg_enable) \ 834 en_print(KERN_DEBUG, priv, format, ##__VA_ARGS__); \ 835 } while (0) 836 #define en_warn(priv, format, ...) \ 837 en_print(KERN_WARNING, priv, format, ##__VA_ARGS__) 838 #define en_err(priv, format, ...) \ 839 en_print(KERN_ERR, priv, format, ##__VA_ARGS__) 840 #define en_info(priv, format, ...) \ 841 en_print(KERN_INFO, priv, format, ##__VA_ARGS__) 842 843 #define mlx4_err(mdev, format, ...) \ 844 pr_err(DRV_NAME " %s: " format, \ 845 dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) 846 #define mlx4_info(mdev, format, ...) \ 847 pr_info(DRV_NAME " %s: " format, \ 848 dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) 849 #define mlx4_warn(mdev, format, ...) \ 850 pr_warn(DRV_NAME " %s: " format, \ 851 dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) 852 853 #endif 854