ARM: 9148/1: handle CONFIG_CPU_ENDIAN_BE32 in arch/arm/kernel/head.S
[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 "status.h"
44 #include "osdep.h"
45 #include "defs.h"
46 #include "hmc.h"
47 #include "type.h"
48 #include "ws.h"
49 #include "protos.h"
50 #include "pble.h"
51 #include "cm.h"
52 #include <rdma/irdma-abi.h>
53 #include "verbs.h"
54 #include "user.h"
55 #include "puda.h"
56
57 extern struct auxiliary_driver i40iw_auxiliary_drv;
58
59 #define IRDMA_FW_VER_DEFAULT    2
60 #define IRDMA_HW_VER            2
61
62 #define IRDMA_ARP_ADD           1
63 #define IRDMA_ARP_DELETE        2
64 #define IRDMA_ARP_RESOLVE       3
65
66 #define IRDMA_MACIP_ADD         1
67 #define IRDMA_MACIP_DELETE      2
68
69 #define IW_CCQ_SIZE     (IRDMA_CQP_SW_SQSIZE_2048 + 1)
70 #define IW_CEQ_SIZE     2048
71 #define IW_AEQ_SIZE     2048
72
73 #define RX_BUF_SIZE     (1536 + 8)
74 #define IW_REG0_SIZE    (4 * 1024)
75 #define IW_TX_TIMEOUT   (6 * HZ)
76 #define IW_FIRST_QPN    1
77
78 #define IW_SW_CONTEXT_ALIGN     1024
79
80 #define MAX_DPC_ITERATIONS      128
81
82 #define IRDMA_EVENT_TIMEOUT             50000
83 #define IRDMA_VCHNL_EVENT_TIMEOUT       100000
84 #define IRDMA_RST_TIMEOUT_HZ            4
85
86 #define IRDMA_NO_QSET   0xffff
87
88 #define IW_CFG_FPM_QP_COUNT             32768
89 #define IRDMA_MAX_PAGES_PER_FMR         512
90 #define IRDMA_MIN_PAGES_PER_FMR         1
91 #define IRDMA_CQP_COMPL_RQ_WQE_FLUSHED  2
92 #define IRDMA_CQP_COMPL_SQ_WQE_FLUSHED  3
93
94 #define IRDMA_Q_TYPE_PE_AEQ     0x80
95 #define IRDMA_Q_INVALID_IDX     0xffff
96 #define IRDMA_REM_ENDPOINT_TRK_QPID     3
97
98 #define IRDMA_DRV_OPT_ENA_MPA_VER_0             0x00000001
99 #define IRDMA_DRV_OPT_DISABLE_MPA_CRC           0x00000002
100 #define IRDMA_DRV_OPT_DISABLE_FIRST_WRITE       0x00000004
101 #define IRDMA_DRV_OPT_DISABLE_INTF              0x00000008
102 #define IRDMA_DRV_OPT_ENA_MSI                   0x00000010
103 #define IRDMA_DRV_OPT_DUAL_LOGICAL_PORT         0x00000020
104 #define IRDMA_DRV_OPT_NO_INLINE_DATA            0x00000080
105 #define IRDMA_DRV_OPT_DISABLE_INT_MOD           0x00000100
106 #define IRDMA_DRV_OPT_DISABLE_VIRT_WQ           0x00000200
107 #define IRDMA_DRV_OPT_ENA_PAU                   0x00000400
108 #define IRDMA_DRV_OPT_MCAST_LOGPORT_MAP         0x00000800
109
110 #define IW_HMC_OBJ_TYPE_NUM     ARRAY_SIZE(iw_hmc_obj_types)
111 #define IRDMA_ROCE_CWND_DEFAULT                 0x400
112 #define IRDMA_ROCE_ACKCREDS_DEFAULT             0x1E
113
114 #define IRDMA_FLUSH_SQ          BIT(0)
115 #define IRDMA_FLUSH_RQ          BIT(1)
116 #define IRDMA_REFLUSH           BIT(2)
117 #define IRDMA_FLUSH_WAIT        BIT(3)
118
119 enum init_completion_state {
120         INVALID_STATE = 0,
121         INITIAL_STATE,
122         CQP_CREATED,
123         HMC_OBJS_CREATED,
124         HW_RSRC_INITIALIZED,
125         CCQ_CREATED,
126         CEQ0_CREATED, /* Last state of probe */
127         ILQ_CREATED,
128         IEQ_CREATED,
129         CEQS_CREATED,
130         PBLE_CHUNK_MEM,
131         AEQ_CREATED,
132         IP_ADDR_REGISTERED,  /* Last state of open */
133 };
134
135 struct irdma_rsrc_limits {
136         u32 qplimit;
137         u32 mrlimit;
138         u32 cqlimit;
139 };
140
141 struct irdma_cqp_err_info {
142         u16 maj;
143         u16 min;
144         const char *desc;
145 };
146
147 struct irdma_cqp_compl_info {
148         u32 op_ret_val;
149         u16 maj_err_code;
150         u16 min_err_code;
151         bool error;
152         u8 op_code;
153 };
154
155 struct irdma_cqp_request {
156         struct cqp_cmds_info info;
157         wait_queue_head_t waitq;
158         struct list_head list;
159         refcount_t refcnt;
160         void (*callback_fcn)(struct irdma_cqp_request *cqp_request);
161         void *param;
162         struct irdma_cqp_compl_info compl_info;
163         bool waiting:1;
164         bool request_done:1;
165         bool dynamic:1;
166 };
167
168 struct irdma_cqp {
169         struct irdma_sc_cqp sc_cqp;
170         spinlock_t req_lock; /* protect CQP request list */
171         spinlock_t compl_lock; /* protect CQP completion processing */
172         wait_queue_head_t waitq;
173         wait_queue_head_t remove_wq;
174         struct irdma_dma_mem sq;
175         struct irdma_dma_mem host_ctx;
176         u64 *scratch_array;
177         struct irdma_cqp_request *cqp_requests;
178         struct list_head cqp_avail_reqs;
179         struct list_head cqp_pending_reqs;
180 };
181
182 struct irdma_ccq {
183         struct irdma_sc_cq sc_cq;
184         struct irdma_dma_mem mem_cq;
185         struct irdma_dma_mem shadow_area;
186 };
187
188 struct irdma_ceq {
189         struct irdma_sc_ceq sc_ceq;
190         struct irdma_dma_mem mem;
191         u32 irq;
192         u32 msix_idx;
193         struct irdma_pci_f *rf;
194         struct tasklet_struct dpc_tasklet;
195         spinlock_t ce_lock; /* sync cq destroy with cq completion event notification */
196 };
197
198 struct irdma_aeq {
199         struct irdma_sc_aeq sc_aeq;
200         struct irdma_dma_mem mem;
201         struct irdma_pble_alloc palloc;
202         bool virtual_map;
203 };
204
205 struct irdma_arp_entry {
206         u32 ip_addr[4];
207         u8 mac_addr[ETH_ALEN];
208 };
209
210 struct irdma_msix_vector {
211         u32 idx;
212         u32 irq;
213         u32 cpu_affinity;
214         u32 ceq_id;
215         cpumask_t mask;
216 };
217
218 struct irdma_mc_table_info {
219         u32 mgn;
220         u32 dest_ip[4];
221         bool lan_fwd:1;
222         bool ipv4_valid:1;
223 };
224
225 struct mc_table_list {
226         struct list_head list;
227         struct irdma_mc_table_info mc_info;
228         struct irdma_mcast_grp_info mc_grp_ctx;
229 };
230
231 struct irdma_qv_info {
232         u32 v_idx; /* msix_vector */
233         u16 ceq_idx;
234         u16 aeq_idx;
235         u8 itr_idx;
236 };
237
238 struct irdma_qvlist_info {
239         u32 num_vectors;
240         struct irdma_qv_info qv_info[1];
241 };
242
243 struct irdma_gen_ops {
244         void (*request_reset)(struct irdma_pci_f *rf);
245         enum irdma_status_code (*register_qset)(struct irdma_sc_vsi *vsi,
246                                                 struct irdma_ws_node *tc_node);
247         void (*unregister_qset)(struct irdma_sc_vsi *vsi,
248                                 struct irdma_ws_node *tc_node);
249 };
250
251 struct irdma_pci_f {
252         bool reset:1;
253         bool rsrc_created:1;
254         bool msix_shared:1;
255         u8 rsrc_profile;
256         u8 *hmc_info_mem;
257         u8 *mem_rsrc;
258         u8 rdma_ver;
259         u8 rst_to;
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         u32 roce_cwnd;
336         u32 roce_ackcreds;
337         u32 vendor_id;
338         u32 vendor_part_id;
339         u32 device_cap_flags;
340         u32 push_mode;
341         u32 rcv_wnd;
342         u16 mac_ip_table_idx;
343         u16 vsi_num;
344         u8 rcv_wscale;
345         u8 iw_status;
346         bool roce_mode:1;
347         bool roce_dcqcn_en:1;
348         bool dcb:1;
349         bool reset: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 enum irdma_status_code irdma_ctrl_init_hw(struct irdma_pci_f *rf);
462 void irdma_ctrl_deinit_hw(struct irdma_pci_f *rf);
463 enum irdma_status_code 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, unsigned char *mac_addr,
472                             u32 *ip_addr, bool ipv4, u32 action);
473 struct irdma_apbvt_entry *irdma_add_apbvt(struct irdma_device *iwdev, u16 port);
474 void irdma_del_apbvt(struct irdma_device *iwdev,
475                      struct irdma_apbvt_entry *entry);
476 struct irdma_cqp_request *irdma_alloc_and_get_cqp_request(struct irdma_cqp *cqp,
477                                                           bool wait);
478 void irdma_free_cqp_request(struct irdma_cqp *cqp,
479                             struct irdma_cqp_request *cqp_request);
480 void irdma_put_cqp_request(struct irdma_cqp *cqp,
481                            struct irdma_cqp_request *cqp_request);
482 int irdma_alloc_local_mac_entry(struct irdma_pci_f *rf, u16 *mac_tbl_idx);
483 int irdma_add_local_mac_entry(struct irdma_pci_f *rf, u8 *mac_addr, u16 idx);
484 void irdma_del_local_mac_entry(struct irdma_pci_f *rf, u16 idx);
485
486 u32 irdma_initialize_hw_rsrc(struct irdma_pci_f *rf);
487 void irdma_port_ibevent(struct irdma_device *iwdev);
488 void irdma_cm_disconn(struct irdma_qp *qp);
489
490 bool irdma_cqp_crit_err(struct irdma_sc_dev *dev, u8 cqp_cmd,
491                         u16 maj_err_code, u16 min_err_code);
492 enum irdma_status_code
493 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 enum irdma_status_code irdma_hw_modify_qp(struct irdma_device *iwdev,
504                                           struct irdma_qp *iwqp,
505                                           struct irdma_modify_qp_info *info,
506                                           bool wait);
507 enum irdma_status_code irdma_qp_suspend_resume(struct irdma_sc_qp *qp,
508                                                bool suspend);
509 enum irdma_status_code
510 irdma_manage_qhash(struct irdma_device *iwdev, struct irdma_cm_info *cminfo,
511                    enum irdma_quad_entry_type etype,
512                    enum irdma_quad_hash_manage_type mtype, void *cmnode,
513                    bool wait);
514 void irdma_receive_ilq(struct irdma_sc_vsi *vsi, struct irdma_puda_buf *rbuf);
515 void irdma_free_sqbuf(struct irdma_sc_vsi *vsi, void *bufp);
516 void irdma_free_qp_rsrc(struct irdma_qp *iwqp);
517 enum irdma_status_code irdma_setup_cm_core(struct irdma_device *iwdev, u8 ver);
518 void irdma_cleanup_cm_core(struct irdma_cm_core *cm_core);
519 void irdma_next_iw_state(struct irdma_qp *iwqp, u8 state, u8 del_hash, u8 term,
520                          u8 term_len);
521 int irdma_send_syn(struct irdma_cm_node *cm_node, u32 sendack);
522 int irdma_send_reset(struct irdma_cm_node *cm_node);
523 struct irdma_cm_node *irdma_find_node(struct irdma_cm_core *cm_core,
524                                       u16 rem_port, u32 *rem_addr, u16 loc_port,
525                                       u32 *loc_addr, u16 vlan_id);
526 enum irdma_status_code irdma_hw_flush_wqes(struct irdma_pci_f *rf,
527                                            struct irdma_sc_qp *qp,
528                                            struct irdma_qp_flush_info *info,
529                                            bool wait);
530 void irdma_gen_ae(struct irdma_pci_f *rf, struct irdma_sc_qp *qp,
531                   struct irdma_gen_ae_info *info, bool wait);
532 void irdma_copy_ip_ntohl(u32 *dst, __be32 *src);
533 void irdma_copy_ip_htonl(__be32 *dst, u32 *src);
534 u16 irdma_get_vlan_ipv4(u32 *addr);
535 struct net_device *irdma_netdev_vlan_ipv6(u32 *addr, u16 *vlan_id, u8 *mac);
536 struct ib_mr *irdma_reg_phys_mr(struct ib_pd *ib_pd, u64 addr, u64 size,
537                                 int acc, u64 *iova_start);
538 int irdma_upload_qp_context(struct irdma_qp *iwqp, bool freeze, bool raw);
539 void irdma_cqp_ce_handler(struct irdma_pci_f *rf, struct irdma_sc_cq *cq);
540 int irdma_ah_cqp_op(struct irdma_pci_f *rf, struct irdma_sc_ah *sc_ah, u8 cmd,
541                     bool wait,
542                     void (*callback_fcn)(struct irdma_cqp_request *cqp_request),
543                     void *cb_param);
544 void irdma_gsi_ud_qp_ah_cb(struct irdma_cqp_request *cqp_request);
545 int irdma_inetaddr_event(struct notifier_block *notifier, unsigned long event,
546                          void *ptr);
547 int irdma_inet6addr_event(struct notifier_block *notifier, unsigned long event,
548                           void *ptr);
549 int irdma_net_event(struct notifier_block *notifier, unsigned long event,
550                     void *ptr);
551 int irdma_netdevice_event(struct notifier_block *notifier, unsigned long event,
552                           void *ptr);
553 void irdma_add_ip(struct irdma_device *iwdev);
554 void cqp_compl_worker(struct work_struct *work);
555 #endif /* IRDMA_MAIN_H */