1 /* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */ 2 /* Copyright (c) 2015 - 2021 Intel Corporation */ 3 #ifndef IRDMA_MAIN_H 4 #define IRDMA_MAIN_H 5 6 #include <linux/ip.h> 7 #include <linux/tcp.h> 8 #include <linux/if_vlan.h> 9 #include <net/addrconf.h> 10 #include <net/netevent.h> 11 #include <net/tcp.h> 12 #include <net/ip6_route.h> 13 #include <net/flow.h> 14 #include <net/secure_seq.h> 15 #include <linux/netdevice.h> 16 #include <linux/etherdevice.h> 17 #include <linux/inetdevice.h> 18 #include <linux/spinlock.h> 19 #include <linux/kernel.h> 20 #include <linux/delay.h> 21 #include <linux/pci.h> 22 #include <linux/dma-mapping.h> 23 #include <linux/workqueue.h> 24 #include <linux/slab.h> 25 #include <linux/io.h> 26 #include <linux/crc32c.h> 27 #include <linux/kthread.h> 28 #ifndef CONFIG_64BIT 29 #include <linux/io-64-nonatomic-lo-hi.h> 30 #endif 31 #include <linux/auxiliary_bus.h> 32 #include <linux/net/intel/iidc.h> 33 #include <crypto/hash.h> 34 #include <rdma/ib_smi.h> 35 #include <rdma/ib_verbs.h> 36 #include <rdma/ib_pack.h> 37 #include <rdma/rdma_cm.h> 38 #include <rdma/iw_cm.h> 39 #include <rdma/ib_user_verbs.h> 40 #include <rdma/ib_umem.h> 41 #include <rdma/ib_cache.h> 42 #include <rdma/uverbs_ioctl.h> 43 #include "osdep.h" 44 #include "defs.h" 45 #include "hmc.h" 46 #include "type.h" 47 #include "ws.h" 48 #include "protos.h" 49 #include "pble.h" 50 #include "cm.h" 51 #include <rdma/irdma-abi.h> 52 #include "verbs.h" 53 #include "user.h" 54 #include "puda.h" 55 56 extern struct auxiliary_driver i40iw_auxiliary_drv; 57 58 #define IRDMA_FW_VER_DEFAULT 2 59 #define IRDMA_HW_VER 2 60 61 #define IRDMA_ARP_ADD 1 62 #define IRDMA_ARP_DELETE 2 63 #define IRDMA_ARP_RESOLVE 3 64 65 #define IRDMA_MACIP_ADD 1 66 #define IRDMA_MACIP_DELETE 2 67 68 #define IW_CCQ_SIZE (IRDMA_CQP_SW_SQSIZE_2048 + 1) 69 #define IW_CEQ_SIZE 2048 70 #define IW_AEQ_SIZE 2048 71 72 #define RX_BUF_SIZE (1536 + 8) 73 #define IW_REG0_SIZE (4 * 1024) 74 #define IW_TX_TIMEOUT (6 * HZ) 75 #define IW_FIRST_QPN 1 76 77 #define IW_SW_CONTEXT_ALIGN 1024 78 79 #define MAX_DPC_ITERATIONS 128 80 81 #define IRDMA_EVENT_TIMEOUT 50000 82 #define IRDMA_VCHNL_EVENT_TIMEOUT 100000 83 #define IRDMA_RST_TIMEOUT_HZ 4 84 85 #define IRDMA_NO_QSET 0xffff 86 87 #define IW_CFG_FPM_QP_COUNT 32768 88 #define IRDMA_MAX_PAGES_PER_FMR 262144 89 #define IRDMA_MIN_PAGES_PER_FMR 1 90 #define IRDMA_CQP_COMPL_RQ_WQE_FLUSHED 2 91 #define IRDMA_CQP_COMPL_SQ_WQE_FLUSHED 3 92 93 #define IRDMA_Q_TYPE_PE_AEQ 0x80 94 #define IRDMA_Q_INVALID_IDX 0xffff 95 #define IRDMA_REM_ENDPOINT_TRK_QPID 3 96 97 #define IRDMA_DRV_OPT_ENA_MPA_VER_0 0x00000001 98 #define IRDMA_DRV_OPT_DISABLE_MPA_CRC 0x00000002 99 #define IRDMA_DRV_OPT_DISABLE_FIRST_WRITE 0x00000004 100 #define IRDMA_DRV_OPT_DISABLE_INTF 0x00000008 101 #define IRDMA_DRV_OPT_ENA_MSI 0x00000010 102 #define IRDMA_DRV_OPT_DUAL_LOGICAL_PORT 0x00000020 103 #define IRDMA_DRV_OPT_NO_INLINE_DATA 0x00000080 104 #define IRDMA_DRV_OPT_DISABLE_INT_MOD 0x00000100 105 #define IRDMA_DRV_OPT_DISABLE_VIRT_WQ 0x00000200 106 #define IRDMA_DRV_OPT_ENA_PAU 0x00000400 107 #define IRDMA_DRV_OPT_MCAST_LOGPORT_MAP 0x00000800 108 109 #define IW_HMC_OBJ_TYPE_NUM ARRAY_SIZE(iw_hmc_obj_types) 110 #define IRDMA_ROCE_CWND_DEFAULT 0x400 111 #define IRDMA_ROCE_ACKCREDS_DEFAULT 0x1E 112 113 #define IRDMA_FLUSH_SQ BIT(0) 114 #define IRDMA_FLUSH_RQ BIT(1) 115 #define IRDMA_REFLUSH BIT(2) 116 #define IRDMA_FLUSH_WAIT BIT(3) 117 118 enum init_completion_state { 119 INVALID_STATE = 0, 120 INITIAL_STATE, 121 CQP_CREATED, 122 HMC_OBJS_CREATED, 123 HW_RSRC_INITIALIZED, 124 CCQ_CREATED, 125 CEQ0_CREATED, /* Last state of probe */ 126 ILQ_CREATED, 127 IEQ_CREATED, 128 CEQS_CREATED, 129 PBLE_CHUNK_MEM, 130 AEQ_CREATED, 131 IP_ADDR_REGISTERED, /* Last state of open */ 132 }; 133 134 struct irdma_rsrc_limits { 135 u32 qplimit; 136 u32 mrlimit; 137 u32 cqlimit; 138 }; 139 140 struct irdma_cqp_err_info { 141 u16 maj; 142 u16 min; 143 const char *desc; 144 }; 145 146 struct irdma_cqp_compl_info { 147 u32 op_ret_val; 148 u16 maj_err_code; 149 u16 min_err_code; 150 bool error; 151 u8 op_code; 152 }; 153 154 struct irdma_cqp_request { 155 struct cqp_cmds_info info; 156 wait_queue_head_t waitq; 157 struct list_head list; 158 refcount_t refcnt; 159 void (*callback_fcn)(struct irdma_cqp_request *cqp_request); 160 void *param; 161 struct irdma_cqp_compl_info compl_info; 162 bool waiting:1; 163 bool request_done:1; 164 bool dynamic:1; 165 }; 166 167 struct irdma_cqp { 168 struct irdma_sc_cqp sc_cqp; 169 spinlock_t req_lock; /* protect CQP request list */ 170 spinlock_t compl_lock; /* protect CQP completion processing */ 171 wait_queue_head_t waitq; 172 wait_queue_head_t remove_wq; 173 struct irdma_dma_mem sq; 174 struct irdma_dma_mem host_ctx; 175 u64 *scratch_array; 176 struct irdma_cqp_request *cqp_requests; 177 struct list_head cqp_avail_reqs; 178 struct list_head cqp_pending_reqs; 179 }; 180 181 struct irdma_ccq { 182 struct irdma_sc_cq sc_cq; 183 struct irdma_dma_mem mem_cq; 184 struct irdma_dma_mem shadow_area; 185 }; 186 187 struct irdma_ceq { 188 struct irdma_sc_ceq sc_ceq; 189 struct irdma_dma_mem mem; 190 u32 irq; 191 u32 msix_idx; 192 struct irdma_pci_f *rf; 193 struct tasklet_struct dpc_tasklet; 194 spinlock_t ce_lock; /* sync cq destroy with cq completion event notification */ 195 }; 196 197 struct irdma_aeq { 198 struct irdma_sc_aeq sc_aeq; 199 struct irdma_dma_mem mem; 200 struct irdma_pble_alloc palloc; 201 bool virtual_map; 202 }; 203 204 struct irdma_arp_entry { 205 u32 ip_addr[4]; 206 u8 mac_addr[ETH_ALEN]; 207 }; 208 209 struct irdma_msix_vector { 210 u32 idx; 211 u32 irq; 212 u32 cpu_affinity; 213 u32 ceq_id; 214 cpumask_t mask; 215 }; 216 217 struct irdma_mc_table_info { 218 u32 mgn; 219 u32 dest_ip[4]; 220 bool lan_fwd:1; 221 bool ipv4_valid:1; 222 }; 223 224 struct mc_table_list { 225 struct list_head list; 226 struct irdma_mc_table_info mc_info; 227 struct irdma_mcast_grp_info mc_grp_ctx; 228 }; 229 230 struct irdma_qv_info { 231 u32 v_idx; /* msix_vector */ 232 u16 ceq_idx; 233 u16 aeq_idx; 234 u8 itr_idx; 235 }; 236 237 struct irdma_qvlist_info { 238 u32 num_vectors; 239 struct irdma_qv_info qv_info[1]; 240 }; 241 242 struct irdma_gen_ops { 243 void (*request_reset)(struct irdma_pci_f *rf); 244 int (*register_qset)(struct irdma_sc_vsi *vsi, 245 struct irdma_ws_node *tc_node); 246 void (*unregister_qset)(struct irdma_sc_vsi *vsi, 247 struct irdma_ws_node *tc_node); 248 }; 249 250 struct irdma_pci_f { 251 bool reset:1; 252 bool rsrc_created:1; 253 bool msix_shared:1; 254 u8 rsrc_profile; 255 u8 *hmc_info_mem; 256 u8 *mem_rsrc; 257 u8 rdma_ver; 258 u8 rst_to; 259 u8 pf_id; 260 enum irdma_protocol_used protocol_used; 261 u32 sd_type; 262 u32 msix_count; 263 u32 max_mr; 264 u32 max_qp; 265 u32 max_cq; 266 u32 max_ah; 267 u32 next_ah; 268 u32 max_mcg; 269 u32 next_mcg; 270 u32 max_pd; 271 u32 next_qp; 272 u32 next_cq; 273 u32 next_pd; 274 u32 max_mr_size; 275 u32 max_cqe; 276 u32 mr_stagmask; 277 u32 used_pds; 278 u32 used_cqs; 279 u32 used_mrs; 280 u32 used_qps; 281 u32 arp_table_size; 282 u32 next_arp_index; 283 u32 ceqs_count; 284 u32 next_ws_node_id; 285 u32 max_ws_node_id; 286 u32 limits_sel; 287 unsigned long *allocated_ws_nodes; 288 unsigned long *allocated_qps; 289 unsigned long *allocated_cqs; 290 unsigned long *allocated_mrs; 291 unsigned long *allocated_pds; 292 unsigned long *allocated_mcgs; 293 unsigned long *allocated_ahs; 294 unsigned long *allocated_arps; 295 enum init_completion_state init_state; 296 struct irdma_sc_dev sc_dev; 297 struct pci_dev *pcidev; 298 void *cdev; 299 struct irdma_hw hw; 300 struct irdma_cqp cqp; 301 struct irdma_ccq ccq; 302 struct irdma_aeq aeq; 303 struct irdma_ceq *ceqlist; 304 struct irdma_hmc_pble_rsrc *pble_rsrc; 305 struct irdma_arp_entry *arp_table; 306 spinlock_t arp_lock; /*protect ARP table access*/ 307 spinlock_t rsrc_lock; /* protect HW resource array access */ 308 spinlock_t qptable_lock; /*protect QP table access*/ 309 struct irdma_qp **qp_table; 310 spinlock_t qh_list_lock; /* protect mc_qht_list */ 311 struct mc_table_list mc_qht_list; 312 struct irdma_msix_vector *iw_msixtbl; 313 struct irdma_qvlist_info *iw_qvlist; 314 struct tasklet_struct dpc_tasklet; 315 struct msix_entry *msix_entries; 316 struct irdma_dma_mem obj_mem; 317 struct irdma_dma_mem obj_next; 318 atomic_t vchnl_msgs; 319 wait_queue_head_t vchnl_waitq; 320 struct workqueue_struct *cqp_cmpl_wq; 321 struct work_struct cqp_cmpl_work; 322 struct irdma_sc_vsi default_vsi; 323 void *back_fcn; 324 struct irdma_gen_ops gen_ops; 325 struct irdma_device *iwdev; 326 }; 327 328 struct irdma_device { 329 struct ib_device ibdev; 330 struct irdma_pci_f *rf; 331 struct net_device *netdev; 332 struct workqueue_struct *cleanup_wq; 333 struct irdma_sc_vsi vsi; 334 struct irdma_cm_core cm_core; 335 DECLARE_HASHTABLE(ah_hash_tbl, 8); 336 struct mutex ah_tbl_lock; /* protect AH hash table access */ 337 u32 roce_cwnd; 338 u32 roce_ackcreds; 339 u32 vendor_id; 340 u32 vendor_part_id; 341 u32 push_mode; 342 u32 rcv_wnd; 343 u16 mac_ip_table_idx; 344 u16 vsi_num; 345 u8 rcv_wscale; 346 u8 iw_status; 347 bool roce_mode:1; 348 bool roce_dcqcn_en:1; 349 bool dcb_vlan_mode:1; 350 bool iw_ooo:1; 351 enum init_completion_state init_state; 352 353 wait_queue_head_t suspend_wq; 354 }; 355 356 static inline struct irdma_device *to_iwdev(struct ib_device *ibdev) 357 { 358 return container_of(ibdev, struct irdma_device, ibdev); 359 } 360 361 static inline struct irdma_ucontext *to_ucontext(struct ib_ucontext *ibucontext) 362 { 363 return container_of(ibucontext, struct irdma_ucontext, ibucontext); 364 } 365 366 static inline struct irdma_user_mmap_entry * 367 to_irdma_mmap_entry(struct rdma_user_mmap_entry *rdma_entry) 368 { 369 return container_of(rdma_entry, struct irdma_user_mmap_entry, 370 rdma_entry); 371 } 372 373 static inline struct irdma_pd *to_iwpd(struct ib_pd *ibpd) 374 { 375 return container_of(ibpd, struct irdma_pd, ibpd); 376 } 377 378 static inline struct irdma_ah *to_iwah(struct ib_ah *ibah) 379 { 380 return container_of(ibah, struct irdma_ah, ibah); 381 } 382 383 static inline struct irdma_mr *to_iwmr(struct ib_mr *ibmr) 384 { 385 return container_of(ibmr, struct irdma_mr, ibmr); 386 } 387 388 static inline struct irdma_mr *to_iwmw(struct ib_mw *ibmw) 389 { 390 return container_of(ibmw, struct irdma_mr, ibmw); 391 } 392 393 static inline struct irdma_cq *to_iwcq(struct ib_cq *ibcq) 394 { 395 return container_of(ibcq, struct irdma_cq, ibcq); 396 } 397 398 static inline struct irdma_qp *to_iwqp(struct ib_qp *ibqp) 399 { 400 return container_of(ibqp, struct irdma_qp, ibqp); 401 } 402 403 static inline struct irdma_pci_f *dev_to_rf(struct irdma_sc_dev *dev) 404 { 405 return container_of(dev, struct irdma_pci_f, sc_dev); 406 } 407 408 /** 409 * irdma_alloc_resource - allocate a resource 410 * @iwdev: device pointer 411 * @resource_array: resource bit array: 412 * @max_resources: maximum resource number 413 * @req_resources_num: Allocated resource number 414 * @next: next free id 415 **/ 416 static inline int irdma_alloc_rsrc(struct irdma_pci_f *rf, 417 unsigned long *rsrc_array, u32 max_rsrc, 418 u32 *req_rsrc_num, u32 *next) 419 { 420 u32 rsrc_num; 421 unsigned long flags; 422 423 spin_lock_irqsave(&rf->rsrc_lock, flags); 424 rsrc_num = find_next_zero_bit(rsrc_array, max_rsrc, *next); 425 if (rsrc_num >= max_rsrc) { 426 rsrc_num = find_first_zero_bit(rsrc_array, max_rsrc); 427 if (rsrc_num >= max_rsrc) { 428 spin_unlock_irqrestore(&rf->rsrc_lock, flags); 429 ibdev_dbg(&rf->iwdev->ibdev, 430 "ERR: resource [%d] allocation failed\n", 431 rsrc_num); 432 return -EOVERFLOW; 433 } 434 } 435 __set_bit(rsrc_num, rsrc_array); 436 *next = rsrc_num + 1; 437 if (*next == max_rsrc) 438 *next = 0; 439 *req_rsrc_num = rsrc_num; 440 spin_unlock_irqrestore(&rf->rsrc_lock, flags); 441 442 return 0; 443 } 444 445 /** 446 * irdma_free_resource - free a resource 447 * @iwdev: device pointer 448 * @resource_array: resource array for the resource_num 449 * @resource_num: resource number to free 450 **/ 451 static inline void irdma_free_rsrc(struct irdma_pci_f *rf, 452 unsigned long *rsrc_array, u32 rsrc_num) 453 { 454 unsigned long flags; 455 456 spin_lock_irqsave(&rf->rsrc_lock, flags); 457 __clear_bit(rsrc_num, rsrc_array); 458 spin_unlock_irqrestore(&rf->rsrc_lock, flags); 459 } 460 461 int irdma_ctrl_init_hw(struct irdma_pci_f *rf); 462 void irdma_ctrl_deinit_hw(struct irdma_pci_f *rf); 463 int irdma_rt_init_hw(struct irdma_device *iwdev, 464 struct irdma_l2params *l2params); 465 void irdma_rt_deinit_hw(struct irdma_device *iwdev); 466 void irdma_qp_add_ref(struct ib_qp *ibqp); 467 void irdma_qp_rem_ref(struct ib_qp *ibqp); 468 void irdma_free_lsmm_rsrc(struct irdma_qp *iwqp); 469 struct ib_qp *irdma_get_qp(struct ib_device *ibdev, int qpn); 470 void irdma_flush_wqes(struct irdma_qp *iwqp, u32 flush_mask); 471 void irdma_manage_arp_cache(struct irdma_pci_f *rf, 472 const unsigned char *mac_addr, 473 u32 *ip_addr, bool ipv4, u32 action); 474 struct irdma_apbvt_entry *irdma_add_apbvt(struct irdma_device *iwdev, u16 port); 475 void irdma_del_apbvt(struct irdma_device *iwdev, 476 struct irdma_apbvt_entry *entry); 477 struct irdma_cqp_request *irdma_alloc_and_get_cqp_request(struct irdma_cqp *cqp, 478 bool wait); 479 void irdma_free_cqp_request(struct irdma_cqp *cqp, 480 struct irdma_cqp_request *cqp_request); 481 void irdma_put_cqp_request(struct irdma_cqp *cqp, 482 struct irdma_cqp_request *cqp_request); 483 int irdma_alloc_local_mac_entry(struct irdma_pci_f *rf, u16 *mac_tbl_idx); 484 int irdma_add_local_mac_entry(struct irdma_pci_f *rf, const u8 *mac_addr, u16 idx); 485 void irdma_del_local_mac_entry(struct irdma_pci_f *rf, u16 idx); 486 487 u32 irdma_initialize_hw_rsrc(struct irdma_pci_f *rf); 488 void irdma_port_ibevent(struct irdma_device *iwdev); 489 void irdma_cm_disconn(struct irdma_qp *qp); 490 491 bool irdma_cqp_crit_err(struct irdma_sc_dev *dev, u8 cqp_cmd, 492 u16 maj_err_code, u16 min_err_code); 493 int irdma_handle_cqp_op(struct irdma_pci_f *rf, 494 struct irdma_cqp_request *cqp_request); 495 496 int irdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, 497 struct ib_udata *udata); 498 int irdma_modify_qp_roce(struct ib_qp *ibqp, struct ib_qp_attr *attr, 499 int attr_mask, struct ib_udata *udata); 500 void irdma_cq_wq_destroy(struct irdma_pci_f *rf, struct irdma_sc_cq *cq); 501 502 void irdma_cleanup_pending_cqp_op(struct irdma_pci_f *rf); 503 int irdma_hw_modify_qp(struct irdma_device *iwdev, struct irdma_qp *iwqp, 504 struct irdma_modify_qp_info *info, bool wait); 505 int irdma_qp_suspend_resume(struct irdma_sc_qp *qp, bool suspend); 506 int irdma_manage_qhash(struct irdma_device *iwdev, struct irdma_cm_info *cminfo, 507 enum irdma_quad_entry_type etype, 508 enum irdma_quad_hash_manage_type mtype, void *cmnode, 509 bool wait); 510 void irdma_receive_ilq(struct irdma_sc_vsi *vsi, struct irdma_puda_buf *rbuf); 511 void irdma_free_sqbuf(struct irdma_sc_vsi *vsi, void *bufp); 512 void irdma_free_qp_rsrc(struct irdma_qp *iwqp); 513 int irdma_setup_cm_core(struct irdma_device *iwdev, u8 ver); 514 void irdma_cleanup_cm_core(struct irdma_cm_core *cm_core); 515 void irdma_next_iw_state(struct irdma_qp *iwqp, u8 state, u8 del_hash, u8 term, 516 u8 term_len); 517 int irdma_send_syn(struct irdma_cm_node *cm_node, u32 sendack); 518 int irdma_send_reset(struct irdma_cm_node *cm_node); 519 struct irdma_cm_node *irdma_find_node(struct irdma_cm_core *cm_core, 520 u16 rem_port, u32 *rem_addr, u16 loc_port, 521 u32 *loc_addr, u16 vlan_id); 522 int irdma_hw_flush_wqes(struct irdma_pci_f *rf, struct irdma_sc_qp *qp, 523 struct irdma_qp_flush_info *info, bool wait); 524 void irdma_gen_ae(struct irdma_pci_f *rf, struct irdma_sc_qp *qp, 525 struct irdma_gen_ae_info *info, bool wait); 526 void irdma_copy_ip_ntohl(u32 *dst, __be32 *src); 527 void irdma_copy_ip_htonl(__be32 *dst, u32 *src); 528 u16 irdma_get_vlan_ipv4(u32 *addr); 529 struct net_device *irdma_netdev_vlan_ipv6(u32 *addr, u16 *vlan_id, u8 *mac); 530 struct ib_mr *irdma_reg_phys_mr(struct ib_pd *ib_pd, u64 addr, u64 size, 531 int acc, u64 *iova_start); 532 int irdma_upload_qp_context(struct irdma_qp *iwqp, bool freeze, bool raw); 533 void irdma_cqp_ce_handler(struct irdma_pci_f *rf, struct irdma_sc_cq *cq); 534 int irdma_ah_cqp_op(struct irdma_pci_f *rf, struct irdma_sc_ah *sc_ah, u8 cmd, 535 bool wait, 536 void (*callback_fcn)(struct irdma_cqp_request *cqp_request), 537 void *cb_param); 538 void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request); 539 bool irdma_cq_empty(struct irdma_cq *iwcq); 540 int irdma_inetaddr_event(struct notifier_block *notifier, unsigned long event, 541 void *ptr); 542 int irdma_inet6addr_event(struct notifier_block *notifier, unsigned long event, 543 void *ptr); 544 int irdma_net_event(struct notifier_block *notifier, unsigned long event, 545 void *ptr); 546 int irdma_netdevice_event(struct notifier_block *notifier, unsigned long event, 547 void *ptr); 548 void irdma_add_ip(struct irdma_device *iwdev); 549 void cqp_compl_worker(struct work_struct *work); 550 #endif /* IRDMA_MAIN_H */ 551