Merge tag 'drm-misc-next-fixes-2023-09-01' of git://anongit.freedesktop.org/drm/drm...
[platform/kernel/linux-rpi.git] / drivers / infiniband / hw / irdma / main.h
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 #define IRDMA_IRQ_NAME_STR_LEN (64)
119
120 enum init_completion_state {
121         INVALID_STATE = 0,
122         INITIAL_STATE,
123         CQP_CREATED,
124         HMC_OBJS_CREATED,
125         HW_RSRC_INITIALIZED,
126         CCQ_CREATED,
127         CEQ0_CREATED, /* Last state of probe */
128         ILQ_CREATED,
129         IEQ_CREATED,
130         CEQS_CREATED,
131         PBLE_CHUNK_MEM,
132         AEQ_CREATED,
133         IP_ADDR_REGISTERED,  /* Last state of open */
134 };
135
136 struct irdma_rsrc_limits {
137         u32 qplimit;
138         u32 mrlimit;
139         u32 cqlimit;
140 };
141
142 struct irdma_cqp_err_info {
143         u16 maj;
144         u16 min;
145         const char *desc;
146 };
147
148 struct irdma_cqp_compl_info {
149         u32 op_ret_val;
150         u16 maj_err_code;
151         u16 min_err_code;
152         bool error;
153         u8 op_code;
154 };
155
156 struct irdma_cqp_request {
157         struct cqp_cmds_info info;
158         wait_queue_head_t waitq;
159         struct list_head list;
160         refcount_t refcnt;
161         void (*callback_fcn)(struct irdma_cqp_request *cqp_request);
162         void *param;
163         struct irdma_cqp_compl_info compl_info;
164         bool request_done; /* READ/WRITE_ONCE macros operate on it */
165         bool waiting:1;
166         bool dynamic:1;
167 };
168
169 struct irdma_cqp {
170         struct irdma_sc_cqp sc_cqp;
171         spinlock_t req_lock; /* protect CQP request list */
172         spinlock_t compl_lock; /* protect CQP completion processing */
173         wait_queue_head_t waitq;
174         wait_queue_head_t remove_wq;
175         struct irdma_dma_mem sq;
176         struct irdma_dma_mem host_ctx;
177         u64 *scratch_array;
178         struct irdma_cqp_request *cqp_requests;
179         struct list_head cqp_avail_reqs;
180         struct list_head cqp_pending_reqs;
181 };
182
183 struct irdma_ccq {
184         struct irdma_sc_cq sc_cq;
185         struct irdma_dma_mem mem_cq;
186         struct irdma_dma_mem shadow_area;
187 };
188
189 struct irdma_ceq {
190         struct irdma_sc_ceq sc_ceq;
191         struct irdma_dma_mem mem;
192         u32 irq;
193         u32 msix_idx;
194         struct irdma_pci_f *rf;
195         struct tasklet_struct dpc_tasklet;
196         spinlock_t ce_lock; /* sync cq destroy with cq completion event notification */
197 };
198
199 struct irdma_aeq {
200         struct irdma_sc_aeq sc_aeq;
201         struct irdma_dma_mem mem;
202         struct irdma_pble_alloc palloc;
203         bool virtual_map;
204 };
205
206 struct irdma_arp_entry {
207         u32 ip_addr[4];
208         u8 mac_addr[ETH_ALEN];
209 };
210
211 struct irdma_msix_vector {
212         u32 idx;
213         u32 irq;
214         u32 cpu_affinity;
215         u32 ceq_id;
216         cpumask_t mask;
217         char name[IRDMA_IRQ_NAME_STR_LEN];
218 };
219
220 struct irdma_mc_table_info {
221         u32 mgn;
222         u32 dest_ip[4];
223         bool lan_fwd:1;
224         bool ipv4_valid:1;
225 };
226
227 struct mc_table_list {
228         struct list_head list;
229         struct irdma_mc_table_info mc_info;
230         struct irdma_mcast_grp_info mc_grp_ctx;
231 };
232
233 struct irdma_qv_info {
234         u32 v_idx; /* msix_vector */
235         u16 ceq_idx;
236         u16 aeq_idx;
237         u8 itr_idx;
238 };
239
240 struct irdma_qvlist_info {
241         u32 num_vectors;
242         struct irdma_qv_info qv_info[1];
243 };
244
245 struct irdma_gen_ops {
246         void (*request_reset)(struct irdma_pci_f *rf);
247         int (*register_qset)(struct irdma_sc_vsi *vsi,
248                              struct irdma_ws_node *tc_node);
249         void (*unregister_qset)(struct irdma_sc_vsi *vsi,
250                                 struct irdma_ws_node *tc_node);
251 };
252
253 struct irdma_pci_f {
254         bool reset:1;
255         bool rsrc_created:1;
256         bool msix_shared:1;
257         u8 rsrc_profile;
258         u8 *hmc_info_mem;
259         u8 *mem_rsrc;
260         u8 rdma_ver;
261         u8 rst_to;
262         u8 pf_id;
263         enum irdma_protocol_used protocol_used;
264         u32 sd_type;
265         u32 msix_count;
266         u32 max_mr;
267         u32 max_qp;
268         u32 max_cq;
269         u32 max_ah;
270         u32 next_ah;
271         u32 max_mcg;
272         u32 next_mcg;
273         u32 max_pd;
274         u32 next_qp;
275         u32 next_cq;
276         u32 next_pd;
277         u32 max_mr_size;
278         u32 max_cqe;
279         u32 mr_stagmask;
280         u32 used_pds;
281         u32 used_cqs;
282         u32 used_mrs;
283         u32 used_qps;
284         u32 arp_table_size;
285         u32 next_arp_index;
286         u32 ceqs_count;
287         u32 next_ws_node_id;
288         u32 max_ws_node_id;
289         u32 limits_sel;
290         unsigned long *allocated_ws_nodes;
291         unsigned long *allocated_qps;
292         unsigned long *allocated_cqs;
293         unsigned long *allocated_mrs;
294         unsigned long *allocated_pds;
295         unsigned long *allocated_mcgs;
296         unsigned long *allocated_ahs;
297         unsigned long *allocated_arps;
298         enum init_completion_state init_state;
299         struct irdma_sc_dev sc_dev;
300         struct pci_dev *pcidev;
301         void *cdev;
302         struct irdma_hw hw;
303         struct irdma_cqp cqp;
304         struct irdma_ccq ccq;
305         struct irdma_aeq aeq;
306         struct irdma_ceq *ceqlist;
307         struct irdma_hmc_pble_rsrc *pble_rsrc;
308         struct irdma_arp_entry *arp_table;
309         spinlock_t arp_lock; /*protect ARP table access*/
310         spinlock_t rsrc_lock; /* protect HW resource array access */
311         spinlock_t qptable_lock; /*protect QP table access*/
312         struct irdma_qp **qp_table;
313         spinlock_t qh_list_lock; /* protect mc_qht_list */
314         struct mc_table_list mc_qht_list;
315         struct irdma_msix_vector *iw_msixtbl;
316         struct irdma_qvlist_info *iw_qvlist;
317         struct tasklet_struct dpc_tasklet;
318         struct msix_entry *msix_entries;
319         struct irdma_dma_mem obj_mem;
320         struct irdma_dma_mem obj_next;
321         atomic_t vchnl_msgs;
322         wait_queue_head_t vchnl_waitq;
323         struct workqueue_struct *cqp_cmpl_wq;
324         struct work_struct cqp_cmpl_work;
325         struct irdma_sc_vsi default_vsi;
326         void *back_fcn;
327         struct irdma_gen_ops gen_ops;
328         struct irdma_device *iwdev;
329 };
330
331 struct irdma_device {
332         struct ib_device ibdev;
333         struct irdma_pci_f *rf;
334         struct net_device *netdev;
335         struct workqueue_struct *cleanup_wq;
336         struct irdma_sc_vsi vsi;
337         struct irdma_cm_core cm_core;
338         DECLARE_HASHTABLE(ah_hash_tbl, 8);
339         struct mutex ah_tbl_lock; /* protect AH hash table access */
340         u32 roce_cwnd;
341         u32 roce_ackcreds;
342         u32 vendor_id;
343         u32 vendor_part_id;
344         u32 push_mode;
345         u32 rcv_wnd;
346         u16 mac_ip_table_idx;
347         u16 vsi_num;
348         u8 rcv_wscale;
349         u8 iw_status;
350         bool roce_mode:1;
351         bool roce_dcqcn_en:1;
352         bool dcb_vlan_mode:1;
353         bool iw_ooo:1;
354         enum init_completion_state init_state;
355
356         wait_queue_head_t suspend_wq;
357 };
358
359 static inline struct irdma_device *to_iwdev(struct ib_device *ibdev)
360 {
361         return container_of(ibdev, struct irdma_device, ibdev);
362 }
363
364 static inline struct irdma_ucontext *to_ucontext(struct ib_ucontext *ibucontext)
365 {
366         return container_of(ibucontext, struct irdma_ucontext, ibucontext);
367 }
368
369 static inline struct irdma_user_mmap_entry *
370 to_irdma_mmap_entry(struct rdma_user_mmap_entry *rdma_entry)
371 {
372         return container_of(rdma_entry, struct irdma_user_mmap_entry,
373                             rdma_entry);
374 }
375
376 static inline struct irdma_pd *to_iwpd(struct ib_pd *ibpd)
377 {
378         return container_of(ibpd, struct irdma_pd, ibpd);
379 }
380
381 static inline struct irdma_ah *to_iwah(struct ib_ah *ibah)
382 {
383         return container_of(ibah, struct irdma_ah, ibah);
384 }
385
386 static inline struct irdma_mr *to_iwmr(struct ib_mr *ibmr)
387 {
388         return container_of(ibmr, struct irdma_mr, ibmr);
389 }
390
391 static inline struct irdma_mr *to_iwmw(struct ib_mw *ibmw)
392 {
393         return container_of(ibmw, struct irdma_mr, ibmw);
394 }
395
396 static inline struct irdma_cq *to_iwcq(struct ib_cq *ibcq)
397 {
398         return container_of(ibcq, struct irdma_cq, ibcq);
399 }
400
401 static inline struct irdma_qp *to_iwqp(struct ib_qp *ibqp)
402 {
403         return container_of(ibqp, struct irdma_qp, ibqp);
404 }
405
406 static inline struct irdma_pci_f *dev_to_rf(struct irdma_sc_dev *dev)
407 {
408         return container_of(dev, struct irdma_pci_f, sc_dev);
409 }
410
411 /**
412  * irdma_alloc_resource - allocate a resource
413  * @iwdev: device pointer
414  * @resource_array: resource bit array:
415  * @max_resources: maximum resource number
416  * @req_resources_num: Allocated resource number
417  * @next: next free id
418  **/
419 static inline int irdma_alloc_rsrc(struct irdma_pci_f *rf,
420                                    unsigned long *rsrc_array, u32 max_rsrc,
421                                    u32 *req_rsrc_num, u32 *next)
422 {
423         u32 rsrc_num;
424         unsigned long flags;
425
426         spin_lock_irqsave(&rf->rsrc_lock, flags);
427         rsrc_num = find_next_zero_bit(rsrc_array, max_rsrc, *next);
428         if (rsrc_num >= max_rsrc) {
429                 rsrc_num = find_first_zero_bit(rsrc_array, max_rsrc);
430                 if (rsrc_num >= max_rsrc) {
431                         spin_unlock_irqrestore(&rf->rsrc_lock, flags);
432                         ibdev_dbg(&rf->iwdev->ibdev,
433                                   "ERR: resource [%d] allocation failed\n",
434                                   rsrc_num);
435                         return -EOVERFLOW;
436                 }
437         }
438         __set_bit(rsrc_num, rsrc_array);
439         *next = rsrc_num + 1;
440         if (*next == max_rsrc)
441                 *next = 0;
442         *req_rsrc_num = rsrc_num;
443         spin_unlock_irqrestore(&rf->rsrc_lock, flags);
444
445         return 0;
446 }
447
448 /**
449  * irdma_free_resource - free a resource
450  * @iwdev: device pointer
451  * @resource_array: resource array for the resource_num
452  * @resource_num: resource number to free
453  **/
454 static inline void irdma_free_rsrc(struct irdma_pci_f *rf,
455                                    unsigned long *rsrc_array, u32 rsrc_num)
456 {
457         unsigned long flags;
458
459         spin_lock_irqsave(&rf->rsrc_lock, flags);
460         __clear_bit(rsrc_num, rsrc_array);
461         spin_unlock_irqrestore(&rf->rsrc_lock, flags);
462 }
463
464 int irdma_ctrl_init_hw(struct irdma_pci_f *rf);
465 void irdma_ctrl_deinit_hw(struct irdma_pci_f *rf);
466 int irdma_rt_init_hw(struct irdma_device *iwdev,
467                      struct irdma_l2params *l2params);
468 void irdma_rt_deinit_hw(struct irdma_device *iwdev);
469 void irdma_qp_add_ref(struct ib_qp *ibqp);
470 void irdma_qp_rem_ref(struct ib_qp *ibqp);
471 void irdma_free_lsmm_rsrc(struct irdma_qp *iwqp);
472 struct ib_qp *irdma_get_qp(struct ib_device *ibdev, int qpn);
473 void irdma_flush_wqes(struct irdma_qp *iwqp, u32 flush_mask);
474 void irdma_manage_arp_cache(struct irdma_pci_f *rf,
475                             const unsigned char *mac_addr,
476                             u32 *ip_addr, bool ipv4, u32 action);
477 struct irdma_apbvt_entry *irdma_add_apbvt(struct irdma_device *iwdev, u16 port);
478 void irdma_del_apbvt(struct irdma_device *iwdev,
479                      struct irdma_apbvt_entry *entry);
480 struct irdma_cqp_request *irdma_alloc_and_get_cqp_request(struct irdma_cqp *cqp,
481                                                           bool wait);
482 void irdma_free_cqp_request(struct irdma_cqp *cqp,
483                             struct irdma_cqp_request *cqp_request);
484 void irdma_put_cqp_request(struct irdma_cqp *cqp,
485                            struct irdma_cqp_request *cqp_request);
486 int irdma_alloc_local_mac_entry(struct irdma_pci_f *rf, u16 *mac_tbl_idx);
487 int irdma_add_local_mac_entry(struct irdma_pci_f *rf, const u8 *mac_addr, u16 idx);
488 void irdma_del_local_mac_entry(struct irdma_pci_f *rf, u16 idx);
489
490 u32 irdma_initialize_hw_rsrc(struct irdma_pci_f *rf);
491 void irdma_port_ibevent(struct irdma_device *iwdev);
492 void irdma_cm_disconn(struct irdma_qp *qp);
493
494 bool irdma_cqp_crit_err(struct irdma_sc_dev *dev, u8 cqp_cmd,
495                         u16 maj_err_code, u16 min_err_code);
496 int irdma_handle_cqp_op(struct irdma_pci_f *rf,
497                         struct irdma_cqp_request *cqp_request);
498
499 int irdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
500                     struct ib_udata *udata);
501 int irdma_modify_qp_roce(struct ib_qp *ibqp, struct ib_qp_attr *attr,
502                          int attr_mask, struct ib_udata *udata);
503 void irdma_cq_wq_destroy(struct irdma_pci_f *rf, struct irdma_sc_cq *cq);
504
505 void irdma_cleanup_pending_cqp_op(struct irdma_pci_f *rf);
506 int irdma_hw_modify_qp(struct irdma_device *iwdev, struct irdma_qp *iwqp,
507                        struct irdma_modify_qp_info *info, bool wait);
508 int irdma_qp_suspend_resume(struct irdma_sc_qp *qp, bool suspend);
509 int irdma_manage_qhash(struct irdma_device *iwdev, struct irdma_cm_info *cminfo,
510                        enum irdma_quad_entry_type etype,
511                        enum irdma_quad_hash_manage_type mtype, void *cmnode,
512                        bool wait);
513 void irdma_receive_ilq(struct irdma_sc_vsi *vsi, struct irdma_puda_buf *rbuf);
514 void irdma_free_sqbuf(struct irdma_sc_vsi *vsi, void *bufp);
515 void irdma_free_qp_rsrc(struct irdma_qp *iwqp);
516 int irdma_setup_cm_core(struct irdma_device *iwdev, u8 ver);
517 void irdma_cleanup_cm_core(struct irdma_cm_core *cm_core);
518 void irdma_next_iw_state(struct irdma_qp *iwqp, u8 state, u8 del_hash, u8 term,
519                          u8 term_len);
520 int irdma_send_syn(struct irdma_cm_node *cm_node, u32 sendack);
521 int irdma_send_reset(struct irdma_cm_node *cm_node);
522 struct irdma_cm_node *irdma_find_node(struct irdma_cm_core *cm_core,
523                                       u16 rem_port, u32 *rem_addr, u16 loc_port,
524                                       u32 *loc_addr, u16 vlan_id);
525 int irdma_hw_flush_wqes(struct irdma_pci_f *rf, struct irdma_sc_qp *qp,
526                         struct irdma_qp_flush_info *info, bool wait);
527 void irdma_gen_ae(struct irdma_pci_f *rf, struct irdma_sc_qp *qp,
528                   struct irdma_gen_ae_info *info, bool wait);
529 void irdma_copy_ip_ntohl(u32 *dst, __be32 *src);
530 void irdma_copy_ip_htonl(__be32 *dst, u32 *src);
531 u16 irdma_get_vlan_ipv4(u32 *addr);
532 struct net_device *irdma_netdev_vlan_ipv6(u32 *addr, u16 *vlan_id, u8 *mac);
533 struct ib_mr *irdma_reg_phys_mr(struct ib_pd *ib_pd, u64 addr, u64 size,
534                                 int acc, u64 *iova_start);
535 int irdma_upload_qp_context(struct irdma_qp *iwqp, bool freeze, bool raw);
536 void irdma_cqp_ce_handler(struct irdma_pci_f *rf, struct irdma_sc_cq *cq);
537 int irdma_ah_cqp_op(struct irdma_pci_f *rf, struct irdma_sc_ah *sc_ah, u8 cmd,
538                     bool wait,
539                     void (*callback_fcn)(struct irdma_cqp_request *cqp_request),
540                     void *cb_param);
541 void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request);
542 bool irdma_cq_empty(struct irdma_cq *iwcq);
543 int irdma_inetaddr_event(struct notifier_block *notifier, unsigned long event,
544                          void *ptr);
545 int irdma_inet6addr_event(struct notifier_block *notifier, unsigned long event,
546                           void *ptr);
547 int irdma_net_event(struct notifier_block *notifier, unsigned long event,
548                     void *ptr);
549 int irdma_netdevice_event(struct notifier_block *notifier, unsigned long event,
550                           void *ptr);
551 void irdma_add_ip(struct irdma_device *iwdev);
552 void cqp_compl_worker(struct work_struct *work);
553 #endif /* IRDMA_MAIN_H */