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37#ifndef MTHCA_DEV_H
38#define MTHCA_DEV_H
39
40#include <linux/spinlock.h>
41#include <linux/kernel.h>
42#include <linux/pci.h>
43#include <linux/dma-mapping.h>
44#include <linux/timer.h>
45#include <linux/mutex.h>
46#include <linux/list.h>
47#include <linux/semaphore.h>
48
49#include "mthca_provider.h"
50#include "mthca_doorbell.h"
51
52#define DRV_NAME "ib_mthca"
53#define PFX DRV_NAME ": "
54#define DRV_VERSION "1.0"
55#define DRV_RELDATE "April 4, 2008"
56
57enum {
58 MTHCA_FLAG_DDR_HIDDEN = 1 << 1,
59 MTHCA_FLAG_SRQ = 1 << 2,
60 MTHCA_FLAG_MSI_X = 1 << 3,
61 MTHCA_FLAG_NO_LAM = 1 << 4,
62 MTHCA_FLAG_FMR = 1 << 5,
63 MTHCA_FLAG_MEMFREE = 1 << 6,
64 MTHCA_FLAG_PCIE = 1 << 7,
65 MTHCA_FLAG_SINAI_OPT = 1 << 8
66};
67
68enum {
69 MTHCA_MAX_PORTS = 2
70};
71
72enum {
73 MTHCA_BOARD_ID_LEN = 64
74};
75
76enum {
77 MTHCA_EQ_CONTEXT_SIZE = 0x40,
78 MTHCA_CQ_CONTEXT_SIZE = 0x40,
79 MTHCA_QP_CONTEXT_SIZE = 0x200,
80 MTHCA_RDB_ENTRY_SIZE = 0x20,
81 MTHCA_AV_SIZE = 0x20,
82 MTHCA_MGM_ENTRY_SIZE = 0x100,
83
84
85 MTHCA_MPT_ENTRY_SIZE = 0x40,
86 MTHCA_MTT_SEG_SIZE = 0x40,
87
88 MTHCA_QP_PER_MGM = 4 * (MTHCA_MGM_ENTRY_SIZE / 16 - 2)
89};
90
91enum {
92 MTHCA_EQ_CMD,
93 MTHCA_EQ_ASYNC,
94 MTHCA_EQ_COMP,
95 MTHCA_NUM_EQ
96};
97
98enum {
99 MTHCA_OPCODE_NOP = 0x00,
100 MTHCA_OPCODE_RDMA_WRITE = 0x08,
101 MTHCA_OPCODE_RDMA_WRITE_IMM = 0x09,
102 MTHCA_OPCODE_SEND = 0x0a,
103 MTHCA_OPCODE_SEND_IMM = 0x0b,
104 MTHCA_OPCODE_RDMA_READ = 0x10,
105 MTHCA_OPCODE_ATOMIC_CS = 0x11,
106 MTHCA_OPCODE_ATOMIC_FA = 0x12,
107 MTHCA_OPCODE_BIND_MW = 0x18,
108 MTHCA_OPCODE_INVALID = 0xff
109};
110
111enum {
112 MTHCA_CMD_USE_EVENTS = 1 << 0,
113 MTHCA_CMD_POST_DOORBELLS = 1 << 1
114};
115
116enum {
117 MTHCA_CMD_NUM_DBELL_DWORDS = 8
118};
119
120struct mthca_cmd {
121 struct dma_pool *pool;
122 struct mutex hcr_mutex;
123 struct semaphore poll_sem;
124 struct semaphore event_sem;
125 int max_cmds;
126 spinlock_t context_lock;
127 int free_head;
128 struct mthca_cmd_context *context;
129 u16 token_mask;
130 u32 flags;
131 void __iomem *dbell_map;
132 u16 dbell_offsets[MTHCA_CMD_NUM_DBELL_DWORDS];
133};
134
135struct mthca_limits {
136 int num_ports;
137 int vl_cap;
138 int mtu_cap;
139 int gid_table_len;
140 int pkey_table_len;
141 int local_ca_ack_delay;
142 int num_uars;
143 int max_sg;
144 int num_qps;
145 int max_wqes;
146 int max_desc_sz;
147 int max_qp_init_rdma;
148 int reserved_qps;
149 int num_srqs;
150 int max_srq_wqes;
151 int max_srq_sge;
152 int reserved_srqs;
153 int num_eecs;
154 int reserved_eecs;
155 int num_cqs;
156 int max_cqes;
157 int reserved_cqs;
158 int num_eqs;
159 int reserved_eqs;
160 int num_mpts;
161 int num_mtt_segs;
162 int mtt_seg_size;
163 int fmr_reserved_mtts;
164 int reserved_mtts;
165 int reserved_mrws;
166 int reserved_uars;
167 int num_mgms;
168 int num_amgms;
169 int reserved_mcgs;
170 int num_pds;
171 int reserved_pds;
172 u32 page_size_cap;
173 u32 flags;
174 u16 stat_rate_support;
175 u8 port_width_cap;
176};
177
178struct mthca_alloc {
179 u32 last;
180 u32 top;
181 u32 max;
182 u32 mask;
183 spinlock_t lock;
184 unsigned long *table;
185};
186
187struct mthca_array {
188 struct {
189 void **page;
190 int used;
191 } *page_list;
192};
193
194struct mthca_uar_table {
195 struct mthca_alloc alloc;
196 u64 uarc_base;
197 int uarc_size;
198};
199
200struct mthca_pd_table {
201 struct mthca_alloc alloc;
202};
203
204struct mthca_buddy {
205 unsigned long **bits;
206 int *num_free;
207 int max_order;
208 spinlock_t lock;
209};
210
211struct mthca_mr_table {
212 struct mthca_alloc mpt_alloc;
213 struct mthca_buddy mtt_buddy;
214 struct mthca_buddy *fmr_mtt_buddy;
215 u64 mtt_base;
216 u64 mpt_base;
217 struct mthca_icm_table *mtt_table;
218 struct mthca_icm_table *mpt_table;
219 struct {
220 void __iomem *mpt_base;
221 void __iomem *mtt_base;
222 struct mthca_buddy mtt_buddy;
223 } tavor_fmr;
224};
225
226struct mthca_eq_table {
227 struct mthca_alloc alloc;
228 void __iomem *clr_int;
229 u32 clr_mask;
230 u32 arm_mask;
231 struct mthca_eq eq[MTHCA_NUM_EQ];
232 u64 icm_virt;
233 struct page *icm_page;
234 dma_addr_t icm_dma;
235 int have_irq;
236 u8 inta_pin;
237};
238
239struct mthca_cq_table {
240 struct mthca_alloc alloc;
241 spinlock_t lock;
242 struct mthca_array cq;
243 struct mthca_icm_table *table;
244};
245
246struct mthca_srq_table {
247 struct mthca_alloc alloc;
248 spinlock_t lock;
249 struct mthca_array srq;
250 struct mthca_icm_table *table;
251};
252
253struct mthca_qp_table {
254 struct mthca_alloc alloc;
255 u32 rdb_base;
256 int rdb_shift;
257 int sqp_start;
258 spinlock_t lock;
259 struct mthca_array qp;
260 struct mthca_icm_table *qp_table;
261 struct mthca_icm_table *eqp_table;
262 struct mthca_icm_table *rdb_table;
263};
264
265struct mthca_av_table {
266 struct dma_pool *pool;
267 int num_ddr_avs;
268 u64 ddr_av_base;
269 void __iomem *av_map;
270 struct mthca_alloc alloc;
271};
272
273struct mthca_mcg_table {
274 struct mutex mutex;
275 struct mthca_alloc alloc;
276 struct mthca_icm_table *table;
277};
278
279struct mthca_catas_err {
280 u64 addr;
281 u32 __iomem *map;
282 u32 size;
283 struct timer_list timer;
284 struct list_head list;
285};
286
287extern struct mutex mthca_device_mutex;
288
289struct mthca_dev {
290 struct ib_device ib_dev;
291 struct pci_dev *pdev;
292
293 int hca_type;
294 unsigned long mthca_flags;
295 unsigned long device_cap_flags;
296
297 u32 rev_id;
298 char board_id[MTHCA_BOARD_ID_LEN];
299
300
301 u64 fw_ver;
302 union {
303 struct {
304 u64 fw_start;
305 u64 fw_end;
306 } tavor;
307 struct {
308 u64 clr_int_base;
309 u64 eq_arm_base;
310 u64 eq_set_ci_base;
311 struct mthca_icm *fw_icm;
312 struct mthca_icm *aux_icm;
313 u16 fw_pages;
314 } arbel;
315 } fw;
316
317 u64 ddr_start;
318 u64 ddr_end;
319
320 MTHCA_DECLARE_DOORBELL_LOCK(doorbell_lock)
321 struct mutex cap_mask_mutex;
322
323 void __iomem *hcr;
324 void __iomem *kar;
325 void __iomem *clr_base;
326 union {
327 struct {
328 void __iomem *ecr_base;
329 } tavor;
330 struct {
331 void __iomem *eq_arm;
332 void __iomem *eq_set_ci_base;
333 } arbel;
334 } eq_regs;
335
336 struct mthca_cmd cmd;
337 struct mthca_limits limits;
338
339 struct mthca_uar_table uar_table;
340 struct mthca_pd_table pd_table;
341 struct mthca_mr_table mr_table;
342 struct mthca_eq_table eq_table;
343 struct mthca_cq_table cq_table;
344 struct mthca_srq_table srq_table;
345 struct mthca_qp_table qp_table;
346 struct mthca_av_table av_table;
347 struct mthca_mcg_table mcg_table;
348
349 struct mthca_catas_err catas_err;
350
351 struct mthca_uar driver_uar;
352 struct mthca_db_table *db_tab;
353 struct mthca_pd driver_pd;
354 struct mthca_mr driver_mr;
355
356 struct ib_mad_agent *send_agent[MTHCA_MAX_PORTS][2];
357 struct ib_ah *sm_ah[MTHCA_MAX_PORTS];
358 spinlock_t sm_lock;
359 u8 rate[MTHCA_MAX_PORTS];
360 bool active;
361};
362
363#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
364extern int mthca_debug_level;
365
366#define mthca_dbg(mdev, format, arg...) \
367 do { \
368 if (mthca_debug_level) \
369 dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ## arg); \
370 } while (0)
371
372#else
373
374#define mthca_dbg(mdev, format, arg...) do { (void) mdev; } while (0)
375
376#endif
377
378#define mthca_err(mdev, format, arg...) \
379 dev_err(&mdev->pdev->dev, format, ## arg)
380#define mthca_info(mdev, format, arg...) \
381 dev_info(&mdev->pdev->dev, format, ## arg)
382#define mthca_warn(mdev, format, arg...) \
383 dev_warn(&mdev->pdev->dev, format, ## arg)
384
385extern void __buggy_use_of_MTHCA_GET(void);
386extern void __buggy_use_of_MTHCA_PUT(void);
387
388#define MTHCA_GET(dest, source, offset) \
389 do { \
390 void *__p = (char *) (source) + (offset); \
391 switch (sizeof (dest)) { \
392 case 1: (dest) = *(u8 *) __p; break; \
393 case 2: (dest) = be16_to_cpup(__p); break; \
394 case 4: (dest) = be32_to_cpup(__p); break; \
395 case 8: (dest) = be64_to_cpup(__p); break; \
396 default: __buggy_use_of_MTHCA_GET(); \
397 } \
398 } while (0)
399
400#define MTHCA_PUT(dest, source, offset) \
401 do { \
402 void *__d = ((char *) (dest) + (offset)); \
403 switch (sizeof(source)) { \
404 case 1: *(u8 *) __d = (source); break; \
405 case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
406 case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
407 case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
408 default: __buggy_use_of_MTHCA_PUT(); \
409 } \
410 } while (0)
411
412int mthca_reset(struct mthca_dev *mdev);
413
414u32 mthca_alloc(struct mthca_alloc *alloc);
415void mthca_free(struct mthca_alloc *alloc, u32 obj);
416int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask,
417 u32 reserved);
418void mthca_alloc_cleanup(struct mthca_alloc *alloc);
419void *mthca_array_get(struct mthca_array *array, int index);
420int mthca_array_set(struct mthca_array *array, int index, void *value);
421void mthca_array_clear(struct mthca_array *array, int index);
422int mthca_array_init(struct mthca_array *array, int nent);
423void mthca_array_cleanup(struct mthca_array *array, int nent);
424int mthca_buf_alloc(struct mthca_dev *dev, int size, int max_direct,
425 union mthca_buf *buf, int *is_direct, struct mthca_pd *pd,
426 int hca_write, struct mthca_mr *mr);
427void mthca_buf_free(struct mthca_dev *dev, int size, union mthca_buf *buf,
428 int is_direct, struct mthca_mr *mr);
429
430int mthca_init_uar_table(struct mthca_dev *dev);
431int mthca_init_pd_table(struct mthca_dev *dev);
432int mthca_init_mr_table(struct mthca_dev *dev);
433int mthca_init_eq_table(struct mthca_dev *dev);
434int mthca_init_cq_table(struct mthca_dev *dev);
435int mthca_init_srq_table(struct mthca_dev *dev);
436int mthca_init_qp_table(struct mthca_dev *dev);
437int mthca_init_av_table(struct mthca_dev *dev);
438int mthca_init_mcg_table(struct mthca_dev *dev);
439
440void mthca_cleanup_uar_table(struct mthca_dev *dev);
441void mthca_cleanup_pd_table(struct mthca_dev *dev);
442void mthca_cleanup_mr_table(struct mthca_dev *dev);
443void mthca_cleanup_eq_table(struct mthca_dev *dev);
444void mthca_cleanup_cq_table(struct mthca_dev *dev);
445void mthca_cleanup_srq_table(struct mthca_dev *dev);
446void mthca_cleanup_qp_table(struct mthca_dev *dev);
447void mthca_cleanup_av_table(struct mthca_dev *dev);
448void mthca_cleanup_mcg_table(struct mthca_dev *dev);
449
450int mthca_register_device(struct mthca_dev *dev);
451void mthca_unregister_device(struct mthca_dev *dev);
452
453void mthca_start_catas_poll(struct mthca_dev *dev);
454void mthca_stop_catas_poll(struct mthca_dev *dev);
455int __mthca_restart_one(struct pci_dev *pdev);
456int mthca_catas_init(void);
457void mthca_catas_cleanup(void);
458
459int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar);
460void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar);
461
462int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd);
463void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd);
464
465int mthca_write_mtt_size(struct mthca_dev *dev);
466
467struct mthca_mtt *mthca_alloc_mtt(struct mthca_dev *dev, int size);
468void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt);
469int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
470 int start_index, u64 *buffer_list, int list_len);
471int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
472 u64 iova, u64 total_size, u32 access, struct mthca_mr *mr);
473int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
474 u32 access, struct mthca_mr *mr);
475int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
476 u64 *buffer_list, int buffer_size_shift,
477 int list_len, u64 iova, u64 total_size,
478 u32 access, struct mthca_mr *mr);
479void mthca_free_mr(struct mthca_dev *dev, struct mthca_mr *mr);
480
481int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
482 u32 access, struct mthca_fmr *fmr);
483int mthca_tavor_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
484 int list_len, u64 iova);
485void mthca_tavor_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
486int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
487 int list_len, u64 iova);
488void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
489int mthca_free_fmr(struct mthca_dev *dev, struct mthca_fmr *fmr);
490
491int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt);
492void mthca_unmap_eq_icm(struct mthca_dev *dev);
493
494int mthca_poll_cq(struct ib_cq *ibcq, int num_entries,
495 struct ib_wc *entry);
496int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
497int mthca_arbel_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
498int mthca_init_cq(struct mthca_dev *dev, int nent,
499 struct mthca_ucontext *ctx, u32 pdn,
500 struct mthca_cq *cq);
501void mthca_free_cq(struct mthca_dev *dev,
502 struct mthca_cq *cq);
503void mthca_cq_completion(struct mthca_dev *dev, u32 cqn);
504void mthca_cq_event(struct mthca_dev *dev, u32 cqn,
505 enum ib_event_type event_type);
506void mthca_cq_clean(struct mthca_dev *dev, struct mthca_cq *cq, u32 qpn,
507 struct mthca_srq *srq);
508void mthca_cq_resize_copy_cqes(struct mthca_cq *cq);
509int mthca_alloc_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int nent);
510void mthca_free_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int cqe);
511
512int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd,
513 struct ib_srq_attr *attr, struct mthca_srq *srq,
514 struct ib_udata *udata);
515void mthca_free_srq(struct mthca_dev *dev, struct mthca_srq *srq);
516int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
517 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
518int mthca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
519int mthca_max_srq_sge(struct mthca_dev *dev);
520void mthca_srq_event(struct mthca_dev *dev, u32 srqn,
521 enum ib_event_type event_type);
522void mthca_free_srq_wqe(struct mthca_srq *srq, u32 wqe_addr);
523int mthca_tavor_post_srq_recv(struct ib_srq *srq, const struct ib_recv_wr *wr,
524 const struct ib_recv_wr **bad_wr);
525int mthca_arbel_post_srq_recv(struct ib_srq *srq, const struct ib_recv_wr *wr,
526 const struct ib_recv_wr **bad_wr);
527
528void mthca_qp_event(struct mthca_dev *dev, u32 qpn,
529 enum ib_event_type event_type);
530int mthca_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
531 struct ib_qp_init_attr *qp_init_attr);
532int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
533 struct ib_udata *udata);
534int mthca_tavor_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
535 const struct ib_send_wr **bad_wr);
536int mthca_tavor_post_receive(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
537 const struct ib_recv_wr **bad_wr);
538int mthca_arbel_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
539 const struct ib_send_wr **bad_wr);
540int mthca_arbel_post_receive(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
541 const struct ib_recv_wr **bad_wr);
542void mthca_free_err_wqe(struct mthca_dev *dev, struct mthca_qp *qp, int is_send,
543 int index, int *dbd, __be32 *new_wqe);
544int mthca_alloc_qp(struct mthca_dev *dev,
545 struct mthca_pd *pd,
546 struct mthca_cq *send_cq,
547 struct mthca_cq *recv_cq,
548 enum ib_qp_type type,
549 enum ib_sig_type send_policy,
550 struct ib_qp_cap *cap,
551 struct mthca_qp *qp,
552 struct ib_udata *udata);
553int mthca_alloc_sqp(struct mthca_dev *dev,
554 struct mthca_pd *pd,
555 struct mthca_cq *send_cq,
556 struct mthca_cq *recv_cq,
557 enum ib_sig_type send_policy,
558 struct ib_qp_cap *cap,
559 int qpn,
560 int port,
561 struct mthca_sqp *sqp,
562 struct ib_udata *udata);
563void mthca_free_qp(struct mthca_dev *dev, struct mthca_qp *qp);
564int mthca_create_ah(struct mthca_dev *dev,
565 struct mthca_pd *pd,
566 struct rdma_ah_attr *ah_attr,
567 struct mthca_ah *ah);
568int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah);
569int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
570 struct ib_ud_header *header);
571int mthca_ah_query(struct ib_ah *ibah, struct rdma_ah_attr *attr);
572int mthca_ah_grh_present(struct mthca_ah *ah);
573u8 mthca_get_rate(struct mthca_dev *dev, int static_rate, u8 port);
574enum ib_rate mthca_rate_to_ib(struct mthca_dev *dev, u8 mthca_rate, u8 port);
575
576int mthca_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
577int mthca_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
578
579int mthca_process_mad(struct ib_device *ibdev,
580 int mad_flags,
581 u8 port_num,
582 const struct ib_wc *in_wc,
583 const struct ib_grh *in_grh,
584 const struct ib_mad_hdr *in, size_t in_mad_size,
585 struct ib_mad_hdr *out, size_t *out_mad_size,
586 u16 *out_mad_pkey_index);
587int mthca_create_agents(struct mthca_dev *dev);
588void mthca_free_agents(struct mthca_dev *dev);
589
590static inline struct mthca_dev *to_mdev(struct ib_device *ibdev)
591{
592 return container_of(ibdev, struct mthca_dev, ib_dev);
593}
594
595static inline int mthca_is_memfree(struct mthca_dev *dev)
596{
597 return dev->mthca_flags & MTHCA_FLAG_MEMFREE;
598}
599
600#endif
601
