FILE
idpf.h
File preview with syntax highlighting.
linux-6.19.14/drivers/net/ethernet/intel/idpf/idpf.h
1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* Copyright (C) 2023 Intel Corporation */ 3 4#ifndef _IDPF_H_ 5#define _IDPF_H_ 6 7/* Forward declaration */ 8struct idpf_adapter; 9struct idpf_vport; 10struct idpf_vport_max_q; 11 12#include <net/pkt_sched.h> 13#include <linux/aer.h> 14#include <linux/etherdevice.h> 15#include <linux/ioport.h> 16#include <linux/pci.h> 17#include <linux/bitfield.h> 18#include <linux/sctp.h> 19#include <linux/ethtool_netlink.h> 20#include <net/gro.h> 21 22#include <linux/net/intel/iidc_rdma.h> 23#include <linux/net/intel/iidc_rdma_idpf.h> 24 25#include "virtchnl2.h" 26#include "idpf_txrx.h" 27#include "idpf_controlq.h" 28 29#define GETMAXVAL(num_bits) GENMASK((num_bits) - 1, 0) 30 31#define IDPF_NO_FREE_SLOT 0xffff 32 33/* Default Mailbox settings */ 34#define IDPF_NUM_FILTERS_PER_MSG 20 35#define IDPF_NUM_DFLT_MBX_Q 2 /* includes both TX and RX */ 36#define IDPF_DFLT_MBX_Q_LEN 64 37#define IDPF_DFLT_MBX_ID -1 38/* maximum number of times to try before resetting mailbox */ 39#define IDPF_MB_MAX_ERR 20 40#define IDPF_NUM_CHUNKS_PER_MSG(struct_sz, chunk_sz) \ 41 ((IDPF_CTLQ_MAX_BUF_LEN - (struct_sz)) / (chunk_sz)) 42 43#define IDPF_WAIT_FOR_MARKER_TIMEO 500 44#define IDPF_MAX_WAIT 500 45 46/* available message levels */ 47#define IDPF_AVAIL_NETIF_M (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) 48 49#define IDPF_DIM_PROFILE_SLOTS 5 50 51#define IDPF_VIRTCHNL_VERSION_MAJOR VIRTCHNL2_VERSION_MAJOR_2 52#define IDPF_VIRTCHNL_VERSION_MINOR VIRTCHNL2_VERSION_MINOR_0 53 54/** 55 * struct idpf_mac_filter 56 * @list: list member field 57 * @macaddr: MAC address 58 * @remove: filter should be removed (virtchnl) 59 * @add: filter should be added (virtchnl) 60 */ 61struct idpf_mac_filter { 62 struct list_head list; 63 u8 macaddr[ETH_ALEN]; 64 bool remove; 65 bool add; 66}; 67 68/** 69 * enum idpf_state - State machine to handle bring up 70 * @__IDPF_VER_CHECK: Negotiate virtchnl version 71 * @__IDPF_GET_CAPS: Negotiate capabilities 72 * @__IDPF_INIT_SW: Init based on given capabilities 73 * @__IDPF_STATE_LAST: Must be last, used to determine size 74 */ 75enum idpf_state { 76 __IDPF_VER_CHECK, 77 __IDPF_GET_CAPS, 78 __IDPF_INIT_SW, 79 __IDPF_STATE_LAST, 80}; 81 82/** 83 * enum idpf_flags - Hard reset causes. 84 * @IDPF_HR_FUNC_RESET: Hard reset when TxRx timeout 85 * @IDPF_HR_DRV_LOAD: Set on driver load for a clean HW 86 * @IDPF_HR_RESET_IN_PROG: Reset in progress 87 * @IDPF_REMOVE_IN_PROG: Driver remove in progress 88 * @IDPF_MB_INTR_MODE: Mailbox in interrupt mode 89 * @IDPF_VC_CORE_INIT: virtchnl core has been init 90 * @IDPF_FLAGS_NBITS: Must be last 91 */ 92enum idpf_flags { 93 IDPF_HR_FUNC_RESET, 94 IDPF_HR_DRV_LOAD, 95 IDPF_HR_RESET_IN_PROG, 96 IDPF_REMOVE_IN_PROG, 97 IDPF_MB_INTR_MODE, 98 IDPF_VC_CORE_INIT, 99 IDPF_FLAGS_NBITS, 100}; 101 102/** 103 * enum idpf_cap_field - Offsets into capabilities struct for specific caps 104 * @IDPF_BASE_CAPS: generic base capabilities 105 * @IDPF_CSUM_CAPS: checksum offload capabilities 106 * @IDPF_SEG_CAPS: segmentation offload capabilities 107 * @IDPF_RSS_CAPS: RSS offload capabilities 108 * @IDPF_HSPLIT_CAPS: Header split capabilities 109 * @IDPF_RSC_CAPS: RSC offload capabilities 110 * @IDPF_OTHER_CAPS: miscellaneous offloads 111 * 112 * Used when checking for a specific capability flag since different capability 113 * sets are not mutually exclusive numerically, the caller must specify which 114 * type of capability they are checking for. 115 */ 116enum idpf_cap_field { 117 IDPF_BASE_CAPS = -1, 118 IDPF_CSUM_CAPS = offsetof(struct virtchnl2_get_capabilities, 119 csum_caps), 120 IDPF_SEG_CAPS = offsetof(struct virtchnl2_get_capabilities, 121 seg_caps), 122 IDPF_RSS_CAPS = offsetof(struct virtchnl2_get_capabilities, 123 rss_caps), 124 IDPF_HSPLIT_CAPS = offsetof(struct virtchnl2_get_capabilities, 125 hsplit_caps), 126 IDPF_RSC_CAPS = offsetof(struct virtchnl2_get_capabilities, 127 rsc_caps), 128 IDPF_OTHER_CAPS = offsetof(struct virtchnl2_get_capabilities, 129 other_caps), 130}; 131 132/** 133 * enum idpf_vport_state - Current vport state 134 * @IDPF_VPORT_UP: Vport is up 135 * @IDPF_VPORT_STATE_NBITS: Must be last, number of states 136 */ 137enum idpf_vport_state { 138 IDPF_VPORT_UP, 139 IDPF_VPORT_STATE_NBITS 140}; 141 142/** 143 * struct idpf_netdev_priv - Struct to store vport back pointer 144 * @adapter: Adapter back pointer 145 * @vport: Vport back pointer 146 * @vport_id: Vport identifier 147 * @link_speed_mbps: Link speed in mbps 148 * @vport_idx: Relative vport index 149 * @max_tx_hdr_size: Max header length hardware can support 150 * @tx_max_bufs: Max buffers that can be transmitted with scatter-gather 151 * @state: See enum idpf_vport_state 152 * @netstats: Packet and byte stats 153 * @stats_lock: Lock to protect stats update 154 */ 155struct idpf_netdev_priv { 156 struct idpf_adapter *adapter; 157 struct idpf_vport *vport; 158 u32 vport_id; 159 u32 link_speed_mbps; 160 u16 vport_idx; 161 u16 max_tx_hdr_size; 162 u16 tx_max_bufs; 163 DECLARE_BITMAP(state, IDPF_VPORT_STATE_NBITS); 164 struct rtnl_link_stats64 netstats; 165 spinlock_t stats_lock; 166}; 167 168/** 169 * struct idpf_reset_reg - Reset register offsets/masks 170 * @rstat: Reset status register 171 * @rstat_m: Reset status mask 172 */ 173struct idpf_reset_reg { 174 void __iomem *rstat; 175 u32 rstat_m; 176}; 177 178/** 179 * struct idpf_vport_max_q - Queue limits 180 * @max_rxq: Maximum number of RX queues supported 181 * @max_txq: Maixmum number of TX queues supported 182 * @max_bufq: In splitq, maximum number of buffer queues supported 183 * @max_complq: In splitq, maximum number of completion queues supported 184 */ 185struct idpf_vport_max_q { 186 u16 max_rxq; 187 u16 max_txq; 188 u16 max_bufq; 189 u16 max_complq; 190}; 191 192/** 193 * struct idpf_reg_ops - Device specific register operation function pointers 194 * @ctlq_reg_init: Mailbox control queue register initialization 195 * @intr_reg_init: Traffic interrupt register initialization 196 * @mb_intr_reg_init: Mailbox interrupt register initialization 197 * @reset_reg_init: Reset register initialization 198 * @trigger_reset: Trigger a reset to occur 199 * @ptp_reg_init: PTP register initialization 200 */ 201struct idpf_reg_ops { 202 void (*ctlq_reg_init)(struct idpf_adapter *adapter, 203 struct idpf_ctlq_create_info *cq); 204 int (*intr_reg_init)(struct idpf_vport *vport); 205 void (*mb_intr_reg_init)(struct idpf_adapter *adapter); 206 void (*reset_reg_init)(struct idpf_adapter *adapter); 207 void (*trigger_reset)(struct idpf_adapter *adapter, 208 enum idpf_flags trig_cause); 209 void (*ptp_reg_init)(const struct idpf_adapter *adapter); 210}; 211 212#define IDPF_MMIO_REG_NUM_STATIC 2 213#define IDPF_PF_MBX_REGION_SZ 4096 214#define IDPF_PF_RSTAT_REGION_SZ 2048 215#define IDPF_VF_MBX_REGION_SZ 10240 216#define IDPF_VF_RSTAT_REGION_SZ 2048 217 218/** 219 * struct idpf_dev_ops - Device specific operations 220 * @reg_ops: Register operations 221 * @idc_init: IDC initialization 222 * @static_reg_info: array of mailbox and rstat register info 223 */ 224struct idpf_dev_ops { 225 struct idpf_reg_ops reg_ops; 226 227 int (*idc_init)(struct idpf_adapter *adapter); 228 229 /* static_reg_info[0] is mailbox region, static_reg_info[1] is rstat */ 230 struct resource static_reg_info[IDPF_MMIO_REG_NUM_STATIC]; 231}; 232 233/** 234 * enum idpf_vport_reset_cause - Vport soft reset causes 235 * @IDPF_SR_Q_CHANGE: Soft reset queue change 236 * @IDPF_SR_Q_DESC_CHANGE: Soft reset descriptor change 237 * @IDPF_SR_MTU_CHANGE: Soft reset MTU change 238 * @IDPF_SR_RSC_CHANGE: Soft reset RSC change 239 */ 240enum idpf_vport_reset_cause { 241 IDPF_SR_Q_CHANGE, 242 IDPF_SR_Q_DESC_CHANGE, 243 IDPF_SR_MTU_CHANGE, 244 IDPF_SR_RSC_CHANGE, 245}; 246 247/** 248 * enum idpf_vport_flags - Vport flags 249 * @IDPF_VPORT_DEL_QUEUES: To send delete queues message 250 * @IDPF_VPORT_FLAGS_NBITS: Must be last 251 */ 252enum idpf_vport_flags { 253 IDPF_VPORT_DEL_QUEUES, 254 IDPF_VPORT_FLAGS_NBITS, 255}; 256 257/** 258 * struct idpf_tstamp_stats - Tx timestamp statistics 259 * @stats_sync: See struct u64_stats_sync 260 * @packets: Number of packets successfully timestamped by the hardware 261 * @discarded: Number of Tx skbs discarded due to cached PHC 262 * being too old to correctly extend timestamp 263 * @flushed: Number of Tx skbs flushed due to interface closed 264 */ 265struct idpf_tstamp_stats { 266 struct u64_stats_sync stats_sync; 267 u64_stats_t packets; 268 u64_stats_t discarded; 269 u64_stats_t flushed; 270}; 271 272struct idpf_port_stats { 273 struct u64_stats_sync stats_sync; 274 u64_stats_t rx_hw_csum_err; 275 u64_stats_t rx_hsplit; 276 u64_stats_t rx_hsplit_hbo; 277 u64_stats_t rx_bad_descs; 278 u64_stats_t tx_linearize; 279 u64_stats_t tx_busy; 280 u64_stats_t tx_drops; 281 u64_stats_t tx_dma_map_errs; 282 struct virtchnl2_vport_stats vport_stats; 283}; 284 285struct idpf_fsteer_fltr { 286 struct list_head list; 287 struct ethtool_rx_flow_spec fs; 288}; 289 290/** 291 * struct idpf_vport - Handle for netdevices and queue resources 292 * @num_txq: Number of allocated TX queues 293 * @num_complq: Number of allocated completion queues 294 * @txq_desc_count: TX queue descriptor count 295 * @complq_desc_count: Completion queue descriptor count 296 * @compln_clean_budget: Work budget for completion clean 297 * @num_txq_grp: Number of TX queue groups 298 * @txq_grps: Array of TX queue groups 299 * @txq_model: Split queue or single queue queuing model 300 * @txqs: Used only in hotpath to get to the right queue very fast 301 * @crc_enable: Enable CRC insertion offload 302 * @xdpsq_share: whether XDPSQ sharing is enabled 303 * @num_xdp_txq: number of XDPSQs 304 * @xdp_txq_offset: index of the first XDPSQ (== number of regular SQs) 305 * @xdp_prog: installed XDP program 306 * @num_rxq: Number of allocated RX queues 307 * @num_bufq: Number of allocated buffer queues 308 * @rxq_desc_count: RX queue descriptor count. *MUST* have enough descriptors 309 * to complete all buffer descriptors for all buffer queues in 310 * the worst case. 311 * @num_bufqs_per_qgrp: Buffer queues per RX queue in a given grouping 312 * @bufq_desc_count: Buffer queue descriptor count 313 * @num_rxq_grp: Number of RX queues in a group 314 * @rxq_grps: Total number of RX groups. Number of groups * number of RX per 315 * group will yield total number of RX queues. 316 * @rxq_model: Splitq queue or single queue queuing model 317 * @rx_ptype_lkup: Lookup table for ptypes on RX 318 * @vdev_info: IDC vport device info pointer 319 * @adapter: back pointer to associated adapter 320 * @netdev: Associated net_device. Each vport should have one and only one 321 * associated netdev. 322 * @flags: See enum idpf_vport_flags 323 * @vport_type: Default SRIOV, SIOV, etc. 324 * @vport_id: Device given vport identifier 325 * @idx: Software index in adapter vports struct 326 * @default_vport: Use this vport if one isn't specified 327 * @base_rxd: True if the driver should use base descriptors instead of flex 328 * @num_q_vectors: Number of IRQ vectors allocated 329 * @q_vectors: Array of queue vectors 330 * @q_vector_idxs: Starting index of queue vectors 331 * @noirq_dyn_ctl: register to enable/disable the vector for NOIRQ queues 332 * @noirq_dyn_ctl_ena: value to write to the above to enable it 333 * @noirq_v_idx: ID of the NOIRQ vector 334 * @max_mtu: device given max possible MTU 335 * @default_mac_addr: device will give a default MAC to use 336 * @rx_itr_profile: RX profiles for Dynamic Interrupt Moderation 337 * @tx_itr_profile: TX profiles for Dynamic Interrupt Moderation 338 * @port_stats: per port csum, header split, and other offload stats 339 * @link_up: True if link is up 340 * @tx_tstamp_caps: Capabilities negotiated for Tx timestamping 341 * @tstamp_config: The Tx tstamp config 342 * @tstamp_task: Tx timestamping task 343 * @tstamp_stats: Tx timestamping statistics 344 */ 345struct idpf_vport { 346 u16 num_txq; 347 u16 num_complq; 348 u32 txq_desc_count; 349 u32 complq_desc_count; 350 u32 compln_clean_budget; 351 u16 num_txq_grp; 352 struct idpf_txq_group *txq_grps; 353 u32 txq_model; 354 struct idpf_tx_queue **txqs; 355 bool crc_enable; 356 357 bool xdpsq_share; 358 u16 num_xdp_txq; 359 u16 xdp_txq_offset; 360 struct bpf_prog *xdp_prog; 361 362 u16 num_rxq; 363 u16 num_bufq; 364 u32 rxq_desc_count; 365 u8 num_bufqs_per_qgrp; 366 u32 bufq_desc_count[IDPF_MAX_BUFQS_PER_RXQ_GRP]; 367 u16 num_rxq_grp; 368 struct idpf_rxq_group *rxq_grps; 369 u32 rxq_model; 370 struct libeth_rx_pt *rx_ptype_lkup; 371 372 struct iidc_rdma_vport_dev_info *vdev_info; 373 374 struct idpf_adapter *adapter; 375 struct net_device *netdev; 376 DECLARE_BITMAP(flags, IDPF_VPORT_FLAGS_NBITS); 377 u16 vport_type; 378 u32 vport_id; 379 u16 idx; 380 bool default_vport; 381 bool base_rxd; 382 383 u16 num_q_vectors; 384 struct idpf_q_vector *q_vectors; 385 u16 *q_vector_idxs; 386 387 void __iomem *noirq_dyn_ctl; 388 u32 noirq_dyn_ctl_ena; 389 u16 noirq_v_idx; 390 391 u16 max_mtu; 392 u8 default_mac_addr[ETH_ALEN]; 393 u16 rx_itr_profile[IDPF_DIM_PROFILE_SLOTS]; 394 u16 tx_itr_profile[IDPF_DIM_PROFILE_SLOTS]; 395 struct idpf_port_stats port_stats; 396 397 bool link_up; 398 399 struct idpf_ptp_vport_tx_tstamp_caps *tx_tstamp_caps; 400 struct kernel_hwtstamp_config tstamp_config; 401 struct work_struct tstamp_task; 402 struct idpf_tstamp_stats tstamp_stats; 403}; 404 405/** 406 * enum idpf_user_flags 407 * @__IDPF_USER_FLAG_HSPLIT: header split state 408 * @__IDPF_PROMISC_UC: Unicast promiscuous mode 409 * @__IDPF_PROMISC_MC: Multicast promiscuous mode 410 * @__IDPF_USER_FLAGS_NBITS: Must be last 411 */ 412enum idpf_user_flags { 413 __IDPF_USER_FLAG_HSPLIT = 0U, 414 __IDPF_PROMISC_UC = 32, 415 __IDPF_PROMISC_MC, 416 417 __IDPF_USER_FLAGS_NBITS, 418}; 419 420/** 421 * struct idpf_rss_data - Associated RSS data 422 * @rss_key_size: Size of RSS hash key 423 * @rss_key: RSS hash key 424 * @rss_lut_size: Size of RSS lookup table 425 * @rss_lut: RSS lookup table 426 */ 427struct idpf_rss_data { 428 u16 rss_key_size; 429 u8 *rss_key; 430 u16 rss_lut_size; 431 u32 *rss_lut; 432}; 433 434/** 435 * struct idpf_q_coalesce - User defined coalescing configuration values for 436 * a single queue. 437 * @tx_intr_mode: Dynamic TX ITR or not 438 * @rx_intr_mode: Dynamic RX ITR or not 439 * @tx_coalesce_usecs: TX interrupt throttling rate 440 * @rx_coalesce_usecs: RX interrupt throttling rate 441 * 442 * Used to restore user coalescing configuration after a reset. 443 */ 444struct idpf_q_coalesce { 445 u32 tx_intr_mode; 446 u32 rx_intr_mode; 447 u32 tx_coalesce_usecs; 448 u32 rx_coalesce_usecs; 449}; 450 451/** 452 * struct idpf_vport_user_config_data - User defined configuration values for 453 * each vport. 454 * @rss_data: See struct idpf_rss_data 455 * @q_coalesce: Array of per queue coalescing data 456 * @num_req_tx_qs: Number of user requested TX queues through ethtool 457 * @num_req_rx_qs: Number of user requested RX queues through ethtool 458 * @num_req_txq_desc: Number of user requested TX queue descriptors through 459 * ethtool 460 * @num_req_rxq_desc: Number of user requested RX queue descriptors through 461 * ethtool 462 * @xdp_prog: requested XDP program to install 463 * @user_flags: User toggled config flags 464 * @mac_filter_list: List of MAC filters 465 * @num_fsteer_fltrs: number of flow steering filters 466 * @flow_steer_list: list of flow steering filters 467 * 468 * Used to restore configuration after a reset as the vport will get wiped. 469 */ 470struct idpf_vport_user_config_data { 471 struct idpf_rss_data rss_data; 472 struct idpf_q_coalesce *q_coalesce; 473 u16 num_req_tx_qs; 474 u16 num_req_rx_qs; 475 u32 num_req_txq_desc; 476 u32 num_req_rxq_desc; 477 struct bpf_prog *xdp_prog; 478 DECLARE_BITMAP(user_flags, __IDPF_USER_FLAGS_NBITS); 479 struct list_head mac_filter_list; 480 u32 num_fsteer_fltrs; 481 struct list_head flow_steer_list; 482}; 483 484/** 485 * enum idpf_vport_config_flags - Vport config flags 486 * @IDPF_VPORT_REG_NETDEV: Register netdev 487 * @IDPF_VPORT_UP_REQUESTED: Set if interface up is requested on core reset 488 * @IDPF_VPORT_CONFIG_FLAGS_NBITS: Must be last 489 */ 490enum idpf_vport_config_flags { 491 IDPF_VPORT_REG_NETDEV, 492 IDPF_VPORT_UP_REQUESTED, 493 IDPF_VPORT_CONFIG_FLAGS_NBITS, 494}; 495 496/** 497 * struct idpf_avail_queue_info 498 * @avail_rxq: Available RX queues 499 * @avail_txq: Available TX queues 500 * @avail_bufq: Available buffer queues 501 * @avail_complq: Available completion queues 502 * 503 * Maintain total queues available after allocating max queues to each vport. 504 */ 505struct idpf_avail_queue_info { 506 u16 avail_rxq; 507 u16 avail_txq; 508 u16 avail_bufq; 509 u16 avail_complq; 510}; 511 512/** 513 * struct idpf_vector_info - Utility structure to pass function arguments as a 514 * structure 515 * @num_req_vecs: Vectors required based on the number of queues updated by the 516 * user via ethtool 517 * @num_curr_vecs: Current number of vectors, must be >= @num_req_vecs 518 * @index: Relative starting index for vectors 519 * @default_vport: Vectors are for default vport 520 */ 521struct idpf_vector_info { 522 u16 num_req_vecs; 523 u16 num_curr_vecs; 524 u16 index; 525 bool default_vport; 526}; 527 528/** 529 * struct idpf_vector_lifo - Stack to maintain vector indexes used for vector 530 * distribution algorithm 531 * @top: Points to stack top i.e. next available vector index 532 * @base: Always points to start of the free pool 533 * @size: Total size of the vector stack 534 * @vec_idx: Array to store all the vector indexes 535 * 536 * Vector stack maintains all the relative vector indexes at the *adapter* 537 * level. This stack is divided into 2 parts, first one is called as 'default 538 * pool' and other one is called 'free pool'. Vector distribution algorithm 539 * gives priority to default vports in a way that at least IDPF_MIN_Q_VEC 540 * vectors are allocated per default vport and the relative vector indexes for 541 * those are maintained in default pool. Free pool contains all the unallocated 542 * vector indexes which can be allocated on-demand basis. Mailbox vector index 543 * is maintained in the default pool of the stack. 544 */ 545struct idpf_vector_lifo { 546 u16 top; 547 u16 base; 548 u16 size; 549 u16 *vec_idx; 550}; 551 552/** 553 * struct idpf_vport_config - Vport configuration data 554 * @user_config: see struct idpf_vport_user_config_data 555 * @max_q: Maximum possible queues 556 * @req_qs_chunks: Queue chunk data for requested queues 557 * @mac_filter_list_lock: Lock to protect mac filters 558 * @flow_steer_list_lock: Lock to protect fsteer filters 559 * @flags: See enum idpf_vport_config_flags 560 */ 561struct idpf_vport_config { 562 struct idpf_vport_user_config_data user_config; 563 struct idpf_vport_max_q max_q; 564 struct virtchnl2_add_queues *req_qs_chunks; 565 spinlock_t mac_filter_list_lock; 566 spinlock_t flow_steer_list_lock; 567 DECLARE_BITMAP(flags, IDPF_VPORT_CONFIG_FLAGS_NBITS); 568}; 569 570struct idpf_vc_xn_manager; 571 572#define idpf_for_each_vport(adapter, iter) \ 573 for (struct idpf_vport **__##iter = &(adapter)->vports[0], \ 574 *iter = (adapter)->max_vports ? *__##iter : NULL; \ 575 iter; \ 576 iter = (++__##iter) < &(adapter)->vports[(adapter)->max_vports] ? \ 577 *__##iter : NULL) 578 579/** 580 * struct idpf_adapter - Device data struct generated on probe 581 * @pdev: PCI device struct given on probe 582 * @virt_ver_maj: Virtchnl version major 583 * @virt_ver_min: Virtchnl version minor 584 * @msg_enable: Debug message level enabled 585 * @mb_wait_count: Number of times mailbox was attempted initialization 586 * @state: Init state machine 587 * @flags: See enum idpf_flags 588 * @reset_reg: See struct idpf_reset_reg 589 * @hw: Device access data 590 * @num_avail_msix: Available number of MSIX vectors 591 * @num_msix_entries: Number of entries in MSIX table 592 * @msix_entries: MSIX table 593 * @num_rdma_msix_entries: Available number of MSIX vectors for RDMA 594 * @rdma_msix_entries: RDMA MSIX table 595 * @req_vec_chunks: Requested vector chunk data 596 * @mb_vector: Mailbox vector data 597 * @vector_stack: Stack to store the msix vector indexes 598 * @irq_mb_handler: Handler for hard interrupt for mailbox 599 * @tx_timeout_count: Number of TX timeouts that have occurred 600 * @avail_queues: Device given queue limits 601 * @vports: Array to store vports created by the driver 602 * @netdevs: Associated Vport netdevs 603 * @vport_params_reqd: Vport params requested 604 * @vport_params_recvd: Vport params received 605 * @vport_ids: Array of device given vport identifiers 606 * @vport_config: Vport config parameters 607 * @max_vports: Maximum vports that can be allocated 608 * @num_alloc_vports: Current number of vports allocated 609 * @next_vport: Next free slot in pf->vport[] - 0-based! 610 * @init_task: Initialization task 611 * @init_wq: Workqueue for initialization task 612 * @serv_task: Periodically recurring maintenance task 613 * @serv_wq: Workqueue for service task 614 * @mbx_task: Task to handle mailbox interrupts 615 * @mbx_wq: Workqueue for mailbox responses 616 * @vc_event_task: Task to handle out of band virtchnl event notifications 617 * @vc_event_wq: Workqueue for virtchnl events 618 * @stats_task: Periodic statistics retrieval task 619 * @stats_wq: Workqueue for statistics task 620 * @caps: Negotiated capabilities with device 621 * @vcxn_mngr: Virtchnl transaction manager 622 * @dev_ops: See idpf_dev_ops 623 * @cdev_info: IDC core device info pointer 624 * @num_vfs: Number of allocated VFs through sysfs. PF does not directly talk 625 * to VFs but is used to initialize them 626 * @crc_enable: Enable CRC insertion offload 627 * @req_tx_splitq: TX split or single queue model to request 628 * @req_rx_splitq: RX split or single queue model to request 629 * @vport_ctrl_lock: Lock to protect the vport control flow 630 * @vector_lock: Lock to protect vector distribution 631 * @queue_lock: Lock to protect queue distribution 632 * @vc_buf_lock: Lock to protect virtchnl buffer 633 * @ptp: Storage for PTP-related data 634 */ 635struct idpf_adapter { 636 struct pci_dev *pdev; 637 u32 virt_ver_maj; 638 u32 virt_ver_min; 639 640 u32 msg_enable; 641 u32 mb_wait_count; 642 enum idpf_state state; 643 DECLARE_BITMAP(flags, IDPF_FLAGS_NBITS); 644 struct idpf_reset_reg reset_reg; 645 struct idpf_hw hw; 646 u16 num_avail_msix; 647 u16 num_msix_entries; 648 struct msix_entry *msix_entries; 649 u16 num_rdma_msix_entries; 650 struct msix_entry *rdma_msix_entries; 651 struct virtchnl2_alloc_vectors *req_vec_chunks; 652 struct idpf_q_vector mb_vector; 653 struct idpf_vector_lifo vector_stack; 654 irqreturn_t (*irq_mb_handler)(int irq, void *data); 655 656 u32 tx_timeout_count; 657 struct idpf_avail_queue_info avail_queues; 658 struct idpf_vport **vports; 659 struct net_device **netdevs; 660 struct virtchnl2_create_vport **vport_params_reqd; 661 struct virtchnl2_create_vport **vport_params_recvd; 662 u32 *vport_ids; 663 664 struct idpf_vport_config **vport_config; 665 u16 max_vports; 666 u16 num_alloc_vports; 667 u16 next_vport; 668 669 struct delayed_work init_task; 670 struct workqueue_struct *init_wq; 671 struct delayed_work serv_task; 672 struct workqueue_struct *serv_wq; 673 struct delayed_work mbx_task; 674 struct workqueue_struct *mbx_wq; 675 struct delayed_work vc_event_task; 676 struct workqueue_struct *vc_event_wq; 677 struct delayed_work stats_task; 678 struct workqueue_struct *stats_wq; 679 struct virtchnl2_get_capabilities caps; 680 struct idpf_vc_xn_manager *vcxn_mngr; 681 682 struct idpf_dev_ops dev_ops; 683 struct iidc_rdma_core_dev_info *cdev_info; 684 int num_vfs; 685 bool crc_enable; 686 bool req_tx_splitq; 687 bool req_rx_splitq; 688 689 struct mutex vport_ctrl_lock; 690 struct mutex vector_lock; 691 struct mutex queue_lock; 692 struct mutex vc_buf_lock; 693 694 struct idpf_ptp *ptp; 695}; 696 697/** 698 * idpf_is_queue_model_split - check if queue model is split 699 * @q_model: queue model single or split 700 * 701 * Returns true if queue model is split else false 702 */ 703static inline int idpf_is_queue_model_split(u16 q_model) 704{ 705 return !IS_ENABLED(CONFIG_IDPF_SINGLEQ) || 706 q_model == VIRTCHNL2_QUEUE_MODEL_SPLIT; 707} 708 709static inline bool idpf_xdp_enabled(const struct idpf_vport *vport) 710{ 711 return vport->adapter && vport->xdp_prog; 712} 713 714#define idpf_is_cap_ena(adapter, field, flag) \ 715 idpf_is_capability_ena(adapter, false, field, flag) 716#define idpf_is_cap_ena_all(adapter, field, flag) \ 717 idpf_is_capability_ena(adapter, true, field, flag) 718 719bool idpf_is_capability_ena(struct idpf_adapter *adapter, bool all, 720 enum idpf_cap_field field, u64 flag); 721 722/** 723 * idpf_is_rdma_cap_ena - Determine if RDMA is supported 724 * @adapter: private data struct 725 * 726 * Return: true if RDMA capability is enabled, false otherwise 727 */ 728static inline bool idpf_is_rdma_cap_ena(struct idpf_adapter *adapter) 729{ 730 return idpf_is_cap_ena(adapter, IDPF_OTHER_CAPS, VIRTCHNL2_CAP_RDMA); 731} 732 733#define IDPF_CAP_RSS (\ 734 VIRTCHNL2_FLOW_IPV4_TCP |\ 735 VIRTCHNL2_FLOW_IPV4_UDP |\ 736 VIRTCHNL2_FLOW_IPV4_SCTP |\ 737 VIRTCHNL2_FLOW_IPV4_OTHER |\ 738 VIRTCHNL2_FLOW_IPV6_TCP |\ 739 VIRTCHNL2_FLOW_IPV6_UDP |\ 740 VIRTCHNL2_FLOW_IPV6_SCTP |\ 741 VIRTCHNL2_FLOW_IPV6_OTHER) 742 743#define IDPF_CAP_RSC (\ 744 VIRTCHNL2_CAP_RSC_IPV4_TCP |\ 745 VIRTCHNL2_CAP_RSC_IPV6_TCP) 746 747#define IDPF_CAP_HSPLIT (\ 748 VIRTCHNL2_CAP_RX_HSPLIT_AT_L4V4 |\ 749 VIRTCHNL2_CAP_RX_HSPLIT_AT_L4V6) 750 751#define IDPF_CAP_TX_CSUM_L4V4 (\ 752 VIRTCHNL2_CAP_TX_CSUM_L4_IPV4_TCP |\ 753 VIRTCHNL2_CAP_TX_CSUM_L4_IPV4_UDP) 754 755#define IDPF_CAP_TX_CSUM_L4V6 (\ 756 VIRTCHNL2_CAP_TX_CSUM_L4_IPV6_TCP |\ 757 VIRTCHNL2_CAP_TX_CSUM_L4_IPV6_UDP) 758 759#define IDPF_CAP_RX_CSUM (\ 760 VIRTCHNL2_CAP_RX_CSUM_L3_IPV4 |\ 761 VIRTCHNL2_CAP_RX_CSUM_L4_IPV4_TCP |\ 762 VIRTCHNL2_CAP_RX_CSUM_L4_IPV4_UDP |\ 763 VIRTCHNL2_CAP_RX_CSUM_L4_IPV6_TCP |\ 764 VIRTCHNL2_CAP_RX_CSUM_L4_IPV6_UDP) 765 766#define IDPF_CAP_TX_SCTP_CSUM (\ 767 VIRTCHNL2_CAP_TX_CSUM_L4_IPV4_SCTP |\ 768 VIRTCHNL2_CAP_TX_CSUM_L4_IPV6_SCTP) 769 770#define IDPF_CAP_TUNNEL_TX_CSUM (\ 771 VIRTCHNL2_CAP_TX_CSUM_L3_SINGLE_TUNNEL |\ 772 VIRTCHNL2_CAP_TX_CSUM_L4_SINGLE_TUNNEL) 773 774/** 775 * idpf_get_reserved_vecs - Get reserved vectors 776 * @adapter: private data struct 777 */ 778static inline u16 idpf_get_reserved_vecs(struct idpf_adapter *adapter) 779{ 780 return le16_to_cpu(adapter->caps.num_allocated_vectors); 781} 782 783/** 784 * idpf_get_reserved_rdma_vecs - Get reserved RDMA vectors 785 * @adapter: private data struct 786 * 787 * Return: number of vectors reserved for RDMA 788 */ 789static inline u16 idpf_get_reserved_rdma_vecs(struct idpf_adapter *adapter) 790{ 791 return le16_to_cpu(adapter->caps.num_rdma_allocated_vectors); 792} 793 794/** 795 * idpf_get_default_vports - Get default number of vports 796 * @adapter: private data struct 797 */ 798static inline u16 idpf_get_default_vports(struct idpf_adapter *adapter) 799{ 800 return le16_to_cpu(adapter->caps.default_num_vports); 801} 802 803/** 804 * idpf_get_max_vports - Get max number of vports 805 * @adapter: private data struct 806 */ 807static inline u16 idpf_get_max_vports(struct idpf_adapter *adapter) 808{ 809 return le16_to_cpu(adapter->caps.max_vports); 810} 811 812/** 813 * idpf_get_max_tx_bufs - Get max scatter-gather buffers supported by the device 814 * @adapter: private data struct 815 */ 816static inline unsigned int idpf_get_max_tx_bufs(struct idpf_adapter *adapter) 817{ 818 return adapter->caps.max_sg_bufs_per_tx_pkt; 819} 820 821/** 822 * idpf_get_min_tx_pkt_len - Get min packet length supported by the device 823 * @adapter: private data struct 824 */ 825static inline u8 idpf_get_min_tx_pkt_len(struct idpf_adapter *adapter) 826{ 827 u8 pkt_len = adapter->caps.min_sso_packet_len; 828 829 return pkt_len ? pkt_len : IDPF_TX_MIN_PKT_LEN; 830} 831 832/** 833 * idpf_get_mbx_reg_addr - Get BAR0 mailbox register address 834 * @adapter: private data struct 835 * @reg_offset: register offset value 836 * 837 * Return: BAR0 mailbox register address based on register offset. 838 */ 839static inline void __iomem *idpf_get_mbx_reg_addr(struct idpf_adapter *adapter, 840 resource_size_t reg_offset) 841{ 842 return adapter->hw.mbx.vaddr + reg_offset; 843} 844 845/** 846 * idpf_get_rstat_reg_addr - Get BAR0 rstat register address 847 * @adapter: private data struct 848 * @reg_offset: register offset value 849 * 850 * Return: BAR0 rstat register address based on register offset. 851 */ 852static inline void __iomem *idpf_get_rstat_reg_addr(struct idpf_adapter *adapter, 853 resource_size_t reg_offset) 854{ 855 reg_offset -= adapter->dev_ops.static_reg_info[1].start; 856 857 return adapter->hw.rstat.vaddr + reg_offset; 858} 859 860/** 861 * idpf_get_reg_addr - Get BAR0 register address 862 * @adapter: private data struct 863 * @reg_offset: register offset value 864 * 865 * Based on the register offset, return the actual BAR0 register address 866 */ 867static inline void __iomem *idpf_get_reg_addr(struct idpf_adapter *adapter, 868 resource_size_t reg_offset) 869{ 870 struct idpf_hw *hw = &adapter->hw; 871 872 for (int i = 0; i < hw->num_lan_regs; i++) { 873 struct idpf_mmio_reg *region = &hw->lan_regs[i]; 874 875 if (reg_offset >= region->addr_start && 876 reg_offset < (region->addr_start + region->addr_len)) { 877 /* Convert the offset so that it is relative to the 878 * start of the region. Then add the base address of 879 * the region to get the final address. 880 */ 881 reg_offset -= region->addr_start; 882 883 return region->vaddr + reg_offset; 884 } 885 } 886 887 /* It's impossible to hit this case with offsets from the CP. But if we 888 * do for any other reason, the kernel will panic on that register 889 * access. Might as well do it here to make it clear what's happening. 890 */ 891 BUG(); 892 893 return NULL; 894} 895 896/** 897 * idpf_is_reset_detected - check if we were reset at some point 898 * @adapter: driver specific private structure 899 * 900 * Returns true if we are either in reset currently or were previously reset. 901 */ 902static inline bool idpf_is_reset_detected(struct idpf_adapter *adapter) 903{ 904 if (!adapter->hw.arq) 905 return true; 906 907 return !(readl(idpf_get_mbx_reg_addr(adapter, adapter->hw.arq->reg.len)) & 908 adapter->hw.arq->reg.len_mask); 909} 910 911/** 912 * idpf_is_reset_in_prog - check if reset is in progress 913 * @adapter: driver specific private structure 914 * 915 * Returns true if hard reset is in progress, false otherwise 916 */ 917static inline bool idpf_is_reset_in_prog(struct idpf_adapter *adapter) 918{ 919 return (test_bit(IDPF_HR_RESET_IN_PROG, adapter->flags) || 920 test_bit(IDPF_HR_FUNC_RESET, adapter->flags) || 921 test_bit(IDPF_HR_DRV_LOAD, adapter->flags)); 922} 923 924/** 925 * idpf_netdev_to_vport - get a vport handle from a netdev 926 * @netdev: network interface device structure 927 */ 928static inline struct idpf_vport *idpf_netdev_to_vport(struct net_device *netdev) 929{ 930 struct idpf_netdev_priv *np = netdev_priv(netdev); 931 932 return np->vport; 933} 934 935/** 936 * idpf_netdev_to_adapter - Get adapter handle from a netdev 937 * @netdev: Network interface device structure 938 */ 939static inline struct idpf_adapter *idpf_netdev_to_adapter(struct net_device *netdev) 940{ 941 struct idpf_netdev_priv *np = netdev_priv(netdev); 942 943 return np->adapter; 944} 945 946/** 947 * idpf_is_feature_ena - Determine if a particular feature is enabled 948 * @vport: Vport to check 949 * @feature: Netdev flag to check 950 * 951 * Returns true or false if a particular feature is enabled. 952 */ 953static inline bool idpf_is_feature_ena(const struct idpf_vport *vport, 954 netdev_features_t feature) 955{ 956 return vport->netdev->features & feature; 957} 958 959/** 960 * idpf_get_max_tx_hdr_size -- get the size of tx header 961 * @adapter: Driver specific private structure 962 */ 963static inline u16 idpf_get_max_tx_hdr_size(struct idpf_adapter *adapter) 964{ 965 return le16_to_cpu(adapter->caps.max_tx_hdr_size); 966} 967 968/** 969 * idpf_vport_ctrl_lock - Acquire the vport control lock 970 * @netdev: Network interface device structure 971 * 972 * This lock should be used by non-datapath code to protect against vport 973 * destruction. 974 */ 975static inline void idpf_vport_ctrl_lock(struct net_device *netdev) 976{ 977 struct idpf_netdev_priv *np = netdev_priv(netdev); 978 979 mutex_lock(&np->adapter->vport_ctrl_lock); 980} 981 982/** 983 * idpf_vport_ctrl_unlock - Release the vport control lock 984 * @netdev: Network interface device structure 985 */ 986static inline void idpf_vport_ctrl_unlock(struct net_device *netdev) 987{ 988 struct idpf_netdev_priv *np = netdev_priv(netdev); 989 990 mutex_unlock(&np->adapter->vport_ctrl_lock); 991} 992 993static inline bool idpf_vport_ctrl_is_locked(struct net_device *netdev) 994{ 995 struct idpf_netdev_priv *np = netdev_priv(netdev); 996 997 return mutex_is_locked(&np->adapter->vport_ctrl_lock); 998} 999 1000void idpf_statistics_task(struct work_struct *work); 1001void idpf_init_task(struct work_struct *work); 1002void idpf_service_task(struct work_struct *work); 1003void idpf_mbx_task(struct work_struct *work); 1004void idpf_vc_event_task(struct work_struct *work); 1005void idpf_dev_ops_init(struct idpf_adapter *adapter); 1006void idpf_vf_dev_ops_init(struct idpf_adapter *adapter); 1007int idpf_intr_req(struct idpf_adapter *adapter); 1008void idpf_intr_rel(struct idpf_adapter *adapter); 1009u16 idpf_get_max_tx_hdr_size(struct idpf_adapter *adapter); 1010int idpf_initiate_soft_reset(struct idpf_vport *vport, 1011 enum idpf_vport_reset_cause reset_cause); 1012void idpf_deinit_task(struct idpf_adapter *adapter); 1013int idpf_req_rel_vector_indexes(struct idpf_adapter *adapter, 1014 u16 *q_vector_idxs, 1015 struct idpf_vector_info *vec_info); 1016void idpf_set_ethtool_ops(struct net_device *netdev); 1017void idpf_vport_intr_write_itr(struct idpf_q_vector *q_vector, 1018 u16 itr, bool tx); 1019int idpf_sriov_configure(struct pci_dev *pdev, int num_vfs); 1020 1021u8 idpf_vport_get_hsplit(const struct idpf_vport *vport); 1022bool idpf_vport_set_hsplit(const struct idpf_vport *vport, u8 val); 1023int idpf_idc_init(struct idpf_adapter *adapter); 1024int idpf_idc_init_aux_core_dev(struct idpf_adapter *adapter, 1025 enum iidc_function_type ftype); 1026void idpf_idc_deinit_core_aux_device(struct iidc_rdma_core_dev_info *cdev_info); 1027void idpf_idc_deinit_vport_aux_device(struct iidc_rdma_vport_dev_info *vdev_info); 1028void idpf_idc_issue_reset_event(struct iidc_rdma_core_dev_info *cdev_info); 1029void idpf_idc_vdev_mtu_event(struct iidc_rdma_vport_dev_info *vdev_info, 1030 enum iidc_rdma_event_type event_type); 1031 1032int idpf_add_del_fsteer_filters(struct idpf_adapter *adapter, 1033 struct virtchnl2_flow_rule_add_del *rule, 1034 enum virtchnl2_op opcode); 1035#endif /* !_IDPF_H_ */
~/
Read-only file preview.