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_MS 5000
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 request_done; /* READ/WRITE_ONCE macros operate on it */
163 bool waiting: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[];
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
to_iwdev(struct ib_device * ibdev)356 static inline struct irdma_device *to_iwdev(struct ib_device *ibdev)
357 {
358 return container_of(ibdev, struct irdma_device, ibdev);
359 }
360
to_ucontext(struct ib_ucontext * ibucontext)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 *
to_irdma_mmap_entry(struct rdma_user_mmap_entry * rdma_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
to_iwpd(struct ib_pd * ibpd)373 static inline struct irdma_pd *to_iwpd(struct ib_pd *ibpd)
374 {
375 return container_of(ibpd, struct irdma_pd, ibpd);
376 }
377
to_iwah(struct ib_ah * ibah)378 static inline struct irdma_ah *to_iwah(struct ib_ah *ibah)
379 {
380 return container_of(ibah, struct irdma_ah, ibah);
381 }
382
to_iwmr(struct ib_mr * ibmr)383 static inline struct irdma_mr *to_iwmr(struct ib_mr *ibmr)
384 {
385 return container_of(ibmr, struct irdma_mr, ibmr);
386 }
387
to_iwmw(struct ib_mw * ibmw)388 static inline struct irdma_mr *to_iwmw(struct ib_mw *ibmw)
389 {
390 return container_of(ibmw, struct irdma_mr, ibmw);
391 }
392
to_iwcq(struct ib_cq * ibcq)393 static inline struct irdma_cq *to_iwcq(struct ib_cq *ibcq)
394 {
395 return container_of(ibcq, struct irdma_cq, ibcq);
396 }
397
to_iwqp(struct ib_qp * ibqp)398 static inline struct irdma_qp *to_iwqp(struct ib_qp *ibqp)
399 {
400 return container_of(ibqp, struct irdma_qp, ibqp);
401 }
402
dev_to_rf(struct irdma_sc_dev * dev)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 **/
irdma_alloc_rsrc(struct irdma_pci_f * rf,unsigned long * rsrc_array,u32 max_rsrc,u32 * req_rsrc_num,u32 * next)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 **/
irdma_free_rsrc(struct irdma_pci_f * rf,unsigned long * rsrc_array,u32 rsrc_num)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