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_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 8 119 #define MLX4_EN_DEF_TX_RING_SIZE 512 120 #define MLX4_EN_DEF_RX_RING_SIZE 1024 121 #define MAX_TX_RINGS (MLX4_EN_MAX_TX_RING_P_UP * \ 122 MLX4_EN_NUM_UP) 123 124 #define MLX4_EN_DEFAULT_TX_WORK 256 125 #define MLX4_EN_DOORBELL_BUDGET 8 126 127 /* 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, u8 owner, 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 struct napi_struct napi; 364 int size; 365 int buf_size; 366 int vector; 367 enum cq_type type; 368 u16 moder_time; 369 u16 moder_cnt; 370 struct mlx4_cqe *buf; 371 #define MLX4_EN_OPCODE_ERROR 0x1e 372 373 struct irq_desc *irq_desc; 374 }; 375 376 struct mlx4_en_port_profile { 377 u32 flags; 378 u32 tx_ring_num[MLX4_EN_NUM_TX_TYPES]; 379 u32 rx_ring_num; 380 u32 tx_ring_size; 381 u32 rx_ring_size; 382 u8 num_tx_rings_p_up; 383 u8 rx_pause; 384 u8 rx_ppp; 385 u8 tx_pause; 386 u8 tx_ppp; 387 int rss_rings; 388 int inline_thold; 389 struct hwtstamp_config hwtstamp_config; 390 }; 391 392 struct mlx4_en_profile { 393 int udp_rss; 394 u8 rss_mask; 395 u32 active_ports; 396 u32 small_pkt_int; 397 u8 no_reset; 398 u8 num_tx_rings_p_up; 399 struct mlx4_en_port_profile prof[MLX4_MAX_PORTS + 1]; 400 }; 401 402 struct mlx4_en_dev { 403 struct mlx4_dev *dev; 404 struct pci_dev *pdev; 405 struct mutex state_lock; 406 struct net_device *pndev[MLX4_MAX_PORTS + 1]; 407 struct net_device *upper[MLX4_MAX_PORTS + 1]; 408 u32 port_cnt; 409 bool device_up; 410 struct mlx4_en_profile profile; 411 u32 LSO_support; 412 struct workqueue_struct *workqueue; 413 struct device *dma_device; 414 void __iomem *uar_map; 415 struct mlx4_uar priv_uar; 416 struct mlx4_mr mr; 417 u32 priv_pdn; 418 spinlock_t uar_lock; 419 u8 mac_removed[MLX4_MAX_PORTS + 1]; 420 u32 nominal_c_mult; 421 struct cyclecounter cycles; 422 seqlock_t clock_lock; 423 struct timecounter clock; 424 unsigned long last_overflow_check; 425 struct ptp_clock *ptp_clock; 426 struct ptp_clock_info ptp_clock_info; 427 struct notifier_block nb; 428 }; 429 430 431 struct mlx4_en_rss_map { 432 int base_qpn; 433 struct mlx4_qp qps[MAX_RX_RINGS]; 434 enum mlx4_qp_state state[MAX_RX_RINGS]; 435 struct mlx4_qp indir_qp; 436 enum mlx4_qp_state indir_state; 437 }; 438 439 enum mlx4_en_port_flag { 440 MLX4_EN_PORT_ANC = 1<<0, /* Auto-negotiation complete */ 441 MLX4_EN_PORT_ANE = 1<<1, /* Auto-negotiation enabled */ 442 }; 443 444 struct mlx4_en_port_state { 445 int link_state; 446 int link_speed; 447 int transceiver; 448 u32 flags; 449 }; 450 451 enum mlx4_en_mclist_act { 452 MCLIST_NONE, 453 MCLIST_REM, 454 MCLIST_ADD, 455 }; 456 457 struct mlx4_en_mc_list { 458 struct list_head list; 459 enum mlx4_en_mclist_act action; 460 u8 addr[ETH_ALEN]; 461 u64 reg_id; 462 u64 tunnel_reg_id; 463 }; 464 465 struct mlx4_en_frag_info { 466 u16 frag_size; 467 u32 frag_stride; 468 }; 469 470 #ifdef CONFIG_MLX4_EN_DCB 471 /* Minimal TC BW - setting to 0 will block traffic */ 472 #define MLX4_EN_BW_MIN 1 473 #define MLX4_EN_BW_MAX 100 /* Utilize 100% of the line */ 474 475 #define MLX4_EN_TC_ETS 7 476 477 enum dcb_pfc_type { 478 pfc_disabled = 0, 479 pfc_enabled_full, 480 pfc_enabled_tx, 481 pfc_enabled_rx 482 }; 483 484 struct mlx4_en_cee_config { 485 bool pfc_state; 486 enum dcb_pfc_type dcb_pfc[MLX4_EN_NUM_UP]; 487 }; 488 #endif 489 490 struct ethtool_flow_id { 491 struct list_head list; 492 struct ethtool_rx_flow_spec flow_spec; 493 u64 id; 494 }; 495 496 enum { 497 MLX4_EN_FLAG_PROMISC = (1 << 0), 498 MLX4_EN_FLAG_MC_PROMISC = (1 << 1), 499 /* whether we need to enable hardware loopback by putting dmac 500 * in Tx WQE 501 */ 502 MLX4_EN_FLAG_ENABLE_HW_LOOPBACK = (1 << 2), 503 /* whether we need to drop packets that hardware loopback-ed */ 504 MLX4_EN_FLAG_RX_FILTER_NEEDED = (1 << 3), 505 MLX4_EN_FLAG_FORCE_PROMISC = (1 << 4), 506 MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP = (1 << 5), 507 #ifdef CONFIG_MLX4_EN_DCB 508 MLX4_EN_FLAG_DCB_ENABLED = (1 << 6), 509 #endif 510 }; 511 512 #define PORT_BEACON_MAX_LIMIT (65535) 513 #define MLX4_EN_MAC_HASH_SIZE (1 << BITS_PER_BYTE) 514 #define MLX4_EN_MAC_HASH_IDX 5 515 516 struct mlx4_en_stats_bitmap { 517 DECLARE_BITMAP(bitmap, NUM_ALL_STATS); 518 struct mutex mutex; /* for mutual access to stats bitmap */ 519 }; 520 521 struct mlx4_en_priv { 522 struct mlx4_en_dev *mdev; 523 struct mlx4_en_port_profile *prof; 524 struct net_device *dev; 525 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 526 struct mlx4_en_port_state port_state; 527 spinlock_t stats_lock; 528 struct ethtool_flow_id ethtool_rules[MAX_NUM_OF_FS_RULES]; 529 /* To allow rules removal while port is going down */ 530 struct list_head ethtool_list; 531 532 unsigned long last_moder_packets[MAX_RX_RINGS]; 533 unsigned long last_moder_tx_packets; 534 unsigned long last_moder_bytes[MAX_RX_RINGS]; 535 unsigned long last_moder_jiffies; 536 int last_moder_time[MAX_RX_RINGS]; 537 u16 rx_usecs; 538 u16 rx_frames; 539 u16 tx_usecs; 540 u16 tx_frames; 541 u32 pkt_rate_low; 542 u16 rx_usecs_low; 543 u32 pkt_rate_high; 544 u16 rx_usecs_high; 545 u16 sample_interval; 546 u16 adaptive_rx_coal; 547 u32 msg_enable; 548 u32 loopback_ok; 549 u32 validate_loopback; 550 551 struct mlx4_hwq_resources res; 552 int link_state; 553 int last_link_state; 554 bool port_up; 555 int port; 556 int registered; 557 int allocated; 558 int stride; 559 unsigned char current_mac[ETH_ALEN + 2]; 560 int mac_index; 561 unsigned max_mtu; 562 int base_qpn; 563 int cqe_factor; 564 int cqe_size; 565 566 struct mlx4_en_rss_map rss_map; 567 __be32 ctrl_flags; 568 u32 flags; 569 u8 num_tx_rings_p_up; 570 u32 tx_work_limit; 571 u32 tx_ring_num[MLX4_EN_NUM_TX_TYPES]; 572 u32 rx_ring_num; 573 u32 rx_skb_size; 574 struct mlx4_en_frag_info frag_info[MLX4_EN_MAX_RX_FRAGS]; 575 u8 num_frags; 576 u8 log_rx_info; 577 u8 dma_dir; 578 u16 rx_headroom; 579 580 struct mlx4_en_tx_ring **tx_ring[MLX4_EN_NUM_TX_TYPES]; 581 struct mlx4_en_rx_ring *rx_ring[MAX_RX_RINGS]; 582 struct mlx4_en_cq **tx_cq[MLX4_EN_NUM_TX_TYPES]; 583 struct mlx4_en_cq *rx_cq[MAX_RX_RINGS]; 584 struct mlx4_qp drop_qp; 585 struct work_struct rx_mode_task; 586 struct work_struct watchdog_task; 587 struct work_struct linkstate_task; 588 struct delayed_work stats_task; 589 struct delayed_work service_task; 590 struct work_struct vxlan_add_task; 591 struct work_struct vxlan_del_task; 592 struct mlx4_en_perf_stats pstats; 593 struct mlx4_en_pkt_stats pkstats; 594 struct mlx4_en_counter_stats pf_stats; 595 struct mlx4_en_flow_stats_rx rx_priority_flowstats[MLX4_NUM_PRIORITIES]; 596 struct mlx4_en_flow_stats_tx tx_priority_flowstats[MLX4_NUM_PRIORITIES]; 597 struct mlx4_en_flow_stats_rx rx_flowstats; 598 struct mlx4_en_flow_stats_tx tx_flowstats; 599 struct mlx4_en_port_stats port_stats; 600 struct mlx4_en_xdp_stats xdp_stats; 601 struct mlx4_en_stats_bitmap stats_bitmap; 602 struct list_head mc_list; 603 struct list_head curr_list; 604 u64 broadcast_id; 605 struct mlx4_en_stat_out_mbox hw_stats; 606 int vids[128]; 607 bool wol; 608 struct device *ddev; 609 struct hlist_head mac_hash[MLX4_EN_MAC_HASH_SIZE]; 610 struct hwtstamp_config hwtstamp_config; 611 u32 counter_index; 612 613 #ifdef CONFIG_MLX4_EN_DCB 614 #define MLX4_EN_DCB_ENABLED 0x3 615 struct ieee_ets ets; 616 u16 maxrate[IEEE_8021QAZ_MAX_TCS]; 617 enum dcbnl_cndd_states cndd_state[IEEE_8021QAZ_MAX_TCS]; 618 struct mlx4_en_cee_config cee_config; 619 u8 dcbx_cap; 620 #endif 621 #ifdef CONFIG_RFS_ACCEL 622 spinlock_t filters_lock; 623 int last_filter_id; 624 struct list_head filters; 625 struct hlist_head filter_hash[1 << MLX4_EN_FILTER_HASH_SHIFT]; 626 #endif 627 u64 tunnel_reg_id; 628 __be16 vxlan_port; 629 630 u32 pflags; 631 u8 rss_key[MLX4_EN_RSS_KEY_SIZE]; 632 u8 rss_hash_fn; 633 }; 634 635 enum mlx4_en_wol { 636 MLX4_EN_WOL_MAGIC = (1ULL << 61), 637 MLX4_EN_WOL_ENABLED = (1ULL << 62), 638 }; 639 640 struct mlx4_mac_entry { 641 struct hlist_node hlist; 642 unsigned char mac[ETH_ALEN + 2]; 643 u64 reg_id; 644 struct rcu_head rcu; 645 }; 646 647 static inline struct mlx4_cqe *mlx4_en_get_cqe(void *buf, int idx, int cqe_sz) 648 { 649 return buf + idx * cqe_sz; 650 } 651 652 #define MLX4_EN_WOL_DO_MODIFY (1ULL << 63) 653 654 void mlx4_en_init_ptys2ethtool_map(void); 655 void mlx4_en_update_loopback_state(struct net_device *dev, 656 netdev_features_t features); 657 658 void mlx4_en_destroy_netdev(struct net_device *dev); 659 int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, 660 struct mlx4_en_port_profile *prof); 661 662 int mlx4_en_start_port(struct net_device *dev); 663 void mlx4_en_stop_port(struct net_device *dev, int detach); 664 665 void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev, 666 struct mlx4_en_stats_bitmap *stats_bitmap, 667 u8 rx_ppp, u8 rx_pause, 668 u8 tx_ppp, u8 tx_pause); 669 670 int mlx4_en_try_alloc_resources(struct mlx4_en_priv *priv, 671 struct mlx4_en_priv *tmp, 672 struct mlx4_en_port_profile *prof, 673 bool carry_xdp_prog); 674 void mlx4_en_safe_replace_resources(struct mlx4_en_priv *priv, 675 struct mlx4_en_priv *tmp); 676 677 int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq, 678 int entries, int ring, enum cq_type mode, int node); 679 void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq); 680 int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, 681 int cq_idx); 682 void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); 683 int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); 684 int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq); 685 686 void mlx4_en_tx_irq(struct mlx4_cq *mcq); 687 u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb, 688 void *accel_priv, select_queue_fallback_t fallback); 689 netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev); 690 netdev_tx_t mlx4_en_xmit_frame(struct mlx4_en_rx_ring *rx_ring, 691 struct mlx4_en_rx_alloc *frame, 692 struct net_device *dev, unsigned int length, 693 int tx_ind, int *doorbell_pending); 694 void mlx4_en_xmit_doorbell(struct mlx4_en_tx_ring *ring); 695 bool mlx4_en_rx_recycle(struct mlx4_en_rx_ring *ring, 696 struct mlx4_en_rx_alloc *frame); 697 698 int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, 699 struct mlx4_en_tx_ring **pring, 700 u32 size, u16 stride, 701 int node, int queue_index); 702 void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, 703 struct mlx4_en_tx_ring **pring); 704 int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv, 705 struct mlx4_en_tx_ring *ring, 706 int cq, int user_prio); 707 void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv, 708 struct mlx4_en_tx_ring *ring); 709 void mlx4_en_set_num_rx_rings(struct mlx4_en_dev *mdev); 710 void mlx4_en_recover_from_oom(struct mlx4_en_priv *priv); 711 int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv, 712 struct mlx4_en_rx_ring **pring, 713 u32 size, u16 stride, int node); 714 void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv, 715 struct mlx4_en_rx_ring **pring, 716 u32 size, u16 stride); 717 int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv); 718 void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv, 719 struct mlx4_en_rx_ring *ring); 720 int mlx4_en_process_rx_cq(struct net_device *dev, 721 struct mlx4_en_cq *cq, 722 int budget); 723 int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget); 724 int mlx4_en_poll_tx_cq(struct napi_struct *napi, int budget); 725 u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv, 726 struct mlx4_en_tx_ring *ring, 727 int index, u8 owner, u64 timestamp, 728 int napi_mode); 729 u32 mlx4_en_recycle_tx_desc(struct mlx4_en_priv *priv, 730 struct mlx4_en_tx_ring *ring, 731 int index, u8 owner, u64 timestamp, 732 int napi_mode); 733 void mlx4_en_fill_qp_context(struct mlx4_en_priv *priv, int size, int stride, 734 int is_tx, int rss, int qpn, int cqn, int user_prio, 735 struct mlx4_qp_context *context); 736 void mlx4_en_sqp_event(struct mlx4_qp *qp, enum mlx4_event event); 737 int mlx4_en_change_mcast_lb(struct mlx4_en_priv *priv, struct mlx4_qp *qp, 738 int loopback); 739 void mlx4_en_calc_rx_buf(struct net_device *dev); 740 int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv); 741 void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv); 742 int mlx4_en_create_drop_qp(struct mlx4_en_priv *priv); 743 void mlx4_en_destroy_drop_qp(struct mlx4_en_priv *priv); 744 int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring); 745 void mlx4_en_rx_irq(struct mlx4_cq *mcq); 746 747 int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode); 748 int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv); 749 750 void mlx4_en_fold_software_stats(struct net_device *dev); 751 int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset); 752 int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port); 753 754 #ifdef CONFIG_MLX4_EN_DCB 755 extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_ops; 756 extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_pfc_ops; 757 #endif 758 759 int mlx4_en_setup_tc(struct net_device *dev, u8 up); 760 761 #ifdef CONFIG_RFS_ACCEL 762 void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv); 763 #endif 764 765 #define MLX4_EN_NUM_SELF_TEST 5 766 void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf); 767 void mlx4_en_ptp_overflow_check(struct mlx4_en_dev *mdev); 768 769 #define DEV_FEATURE_CHANGED(dev, new_features, feature) \ 770 ((dev->features & feature) ^ (new_features & feature)) 771 772 int mlx4_en_reset_config(struct net_device *dev, 773 struct hwtstamp_config ts_config, 774 netdev_features_t new_features); 775 void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev, 776 struct mlx4_en_stats_bitmap *stats_bitmap, 777 u8 rx_ppp, u8 rx_pause, 778 u8 tx_ppp, u8 tx_pause); 779 int mlx4_en_netdev_event(struct notifier_block *this, 780 unsigned long event, void *ptr); 781 782 /* 783 * Functions for time stamping 784 */ 785 u64 mlx4_en_get_cqe_ts(struct mlx4_cqe *cqe); 786 void mlx4_en_fill_hwtstamps(struct mlx4_en_dev *mdev, 787 struct skb_shared_hwtstamps *hwts, 788 u64 timestamp); 789 void mlx4_en_init_timestamp(struct mlx4_en_dev *mdev); 790 void mlx4_en_remove_timestamp(struct mlx4_en_dev *mdev); 791 792 /* Globals 793 */ 794 extern const struct ethtool_ops mlx4_en_ethtool_ops; 795 796 797 798 /* 799 * printk / logging functions 800 */ 801 802 __printf(3, 4) 803 void en_print(const char *level, const struct mlx4_en_priv *priv, 804 const char *format, ...); 805 806 #define en_dbg(mlevel, priv, format, ...) \ 807 do { \ 808 if (NETIF_MSG_##mlevel & (priv)->msg_enable) \ 809 en_print(KERN_DEBUG, priv, format, ##__VA_ARGS__); \ 810 } while (0) 811 #define en_warn(priv, format, ...) \ 812 en_print(KERN_WARNING, priv, format, ##__VA_ARGS__) 813 #define en_err(priv, format, ...) \ 814 en_print(KERN_ERR, priv, format, ##__VA_ARGS__) 815 #define en_info(priv, format, ...) \ 816 en_print(KERN_INFO, priv, format, ##__VA_ARGS__) 817 818 #define mlx4_err(mdev, format, ...) \ 819 pr_err(DRV_NAME " %s: " format, \ 820 dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) 821 #define mlx4_info(mdev, format, ...) \ 822 pr_info(DRV_NAME " %s: " format, \ 823 dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) 824 #define mlx4_warn(mdev, format, ...) \ 825 pr_warn(DRV_NAME " %s: " format, \ 826 dev_name(&(mdev)->pdev->dev), ##__VA_ARGS__) 827 828 #endif 829