2 * IBM eServer eHCA Infiniband device driver for Linux on POWER
4 * Struct definition for eHCA internal structures
6 * Authors: Heiko J Schick <schickhj@de.ibm.com>
7 * Christoph Raisch <raisch@de.ibm.com>
8 * Joachim Fenkes <fenkes@de.ibm.com>
10 * Copyright (c) 2005 IBM Corporation
12 * All rights reserved.
14 * This source code is distributed under a dual license of GPL v2.0 and OpenIB
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions are met:
22 * Redistributions of source code must retain the above copyright notice, this
23 * list of conditions and the following disclaimer.
25 * Redistributions in binary form must reproduce the above copyright notice,
26 * this list of conditions and the following disclaimer in the documentation
27 * and/or other materials
28 * provided with the distribution.
30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
31 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
34 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
35 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
36 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
37 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
38 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
40 * POSSIBILITY OF SUCH DAMAGE.
43 #ifndef __EHCA_CLASSES_H__
44 #define __EHCA_CLASSES_H__
55 #include <linux/wait.h>
56 #include <linux/mutex.h>
58 #include <rdma/ib_verbs.h>
59 #include <rdma/ib_user_verbs.h>
62 #include "ehca_classes_pSeries.h"
64 #include "ipz_pt_fn.h"
68 #define EHCA_EQE_CACHE_SIZE 20
69 #define EHCA_MAX_NUM_QUEUES 0xffff
71 struct ehca_eqe_cache_entry {
78 struct ipz_queue ipz_queue;
79 struct ipz_eq_handle ipz_eq_handle;
80 struct work_struct work;
81 struct h_galpas galpas;
85 struct tasklet_struct interrupt_task;
87 spinlock_t irq_spinlock;
88 struct ehca_eqe_cache_entry eqe_cache[EHCA_EQE_CACHE_SIZE];
91 struct ehca_sma_attr {
92 u16 lid, lmc, sm_sl, sm_lid;
93 u16 pkey_tbl_len, pkeys[16];
97 struct ib_cq *ibcq_aqp1;
98 struct ib_qp *ibqp_sqp[2];
99 /* lock to serialze modify_qp() calls for sqp in normal
100 * and irq path (when event PORT_ACTIVE is received first time)
102 spinlock_t mod_sqp_lock;
103 enum ib_port_state port_state;
104 struct ehca_sma_attr saved_attr;
108 #define HCA_CAP_MR_PGSIZE_4K 0x80000000
109 #define HCA_CAP_MR_PGSIZE_64K 0x40000000
110 #define HCA_CAP_MR_PGSIZE_1M 0x20000000
111 #define HCA_CAP_MR_PGSIZE_16M 0x10000000
114 struct ib_device ib_device;
115 struct of_device *ofdev;
118 struct list_head shca_list;
119 struct ipz_adapter_handle ipz_hca_handle;
120 struct ehca_sport sport[2];
123 struct ehca_mr *maxmr;
125 struct h_galpas galpas;
126 struct mutex modify_mutex;
128 /* MR pgsize: bit 0-3 means 4K, 64K, 1M, 16M respectively */
129 u32 hca_cap_mr_pgsize;
140 /* small queue mgmt */
142 struct list_head free[2];
143 struct list_head full[2];
146 enum ehca_ext_qp_type {
153 /* struct to cache modify_qp()'s parms for GSI/SMI qp */
154 struct ehca_mod_qp_parm {
156 struct ib_qp_attr attr;
159 #define EHCA_MOD_QP_PARM_MAX 4
161 #define QMAP_IDX_MASK 0xFFFFULL
163 /* struct for tracking if cqes have been reported to the application */
164 struct ehca_qmap_entry {
170 struct ehca_queue_map {
171 struct ehca_qmap_entry *map;
172 unsigned int entries;
174 unsigned int left_to_poll;
175 unsigned int next_wqe_idx; /* Idx to first wqe to be flushed */
178 /* function to calculate the next index for the qmap */
179 static inline unsigned int next_index(unsigned int cur_index, unsigned int limit)
181 unsigned int temp = cur_index + 1;
182 return (temp == limit) ? 0 : temp;
188 struct ib_srq ib_srq;
191 enum ehca_ext_qp_type ext_type;
192 enum ib_qp_state state;
193 struct ipz_queue ipz_squeue;
194 struct ehca_queue_map sq_map;
195 struct ipz_queue ipz_rqueue;
196 struct ehca_queue_map rq_map;
197 struct h_galpas galpas;
201 spinlock_t spinlock_s;
202 spinlock_t spinlock_r;
203 u32 sq_max_inline_data_size;
204 struct ipz_qp_handle ipz_qp_handle;
206 struct ib_qp_init_attr init_attr;
207 struct ehca_cq *send_cq;
208 struct ehca_cq *recv_cq;
209 unsigned int sqerr_purgeflag;
210 struct hlist_node list_entries;
211 /* array to cache modify_qp()'s parms for GSI/SMI qp */
212 struct ehca_mod_qp_parm *mod_qp_parm;
214 /* mmap counter for resources mapped into user space */
218 /* unsolicited ack circumvention */
223 atomic_t nr_events; /* events seen */
224 wait_queue_head_t wait_completion;
226 struct list_head sq_err_node;
227 struct list_head rq_err_node;
230 #define IS_SRQ(qp) (qp->ext_type == EQPT_SRQ)
231 #define HAS_SQ(qp) (qp->ext_type != EQPT_SRQ)
232 #define HAS_RQ(qp) (qp->ext_type != EQPT_SRQBASE)
234 /* must be power of 2 */
235 #define QP_HASHTAB_LEN 8
239 struct ipz_queue ipz_queue;
240 struct h_galpas galpas;
245 struct ipz_cq_handle ipz_cq_handle;
248 struct hlist_head qp_hashtab[QP_HASHTAB_LEN];
249 struct list_head entry;
250 u32 nr_callbacks; /* #events assigned to cpu by scaling code */
251 atomic_t nr_events; /* #events seen */
252 wait_queue_head_t wait_completion;
253 spinlock_t task_lock;
254 /* mmap counter for resources mapped into user space */
257 struct list_head sqp_err_list;
258 struct list_head rqp_err_list;
262 EHCA_MR_FLAG_FMR = 0x80000000, /* FMR, created with ehca_alloc_fmr */
263 EHCA_MR_FLAG_MAXMR = 0x40000000, /* max-MR */
268 struct ib_mr ib_mr; /* must always be first in ehca_mr */
269 struct ib_fmr ib_fmr; /* must always be first in ehca_mr */
271 struct ib_umem *umem;
274 enum ehca_mr_flag flags;
275 u32 num_kpages; /* number of kernel pages */
276 u32 num_hwpages; /* number of hw pages to form MR */
277 u64 hwpage_size; /* hw page size used for this MR */
278 int acl; /* ACL (stored here for usage in reregister) */
279 u64 *start; /* virtual start address (stored here for */
280 /* usage in reregister) */
281 u64 size; /* size (stored here for usage in reregister) */
282 u32 fmr_page_size; /* page size for FMR */
283 u32 fmr_max_pages; /* max pages for FMR */
284 u32 fmr_max_maps; /* max outstanding maps for FMR */
285 u32 fmr_map_cnt; /* map counter for FMR */
286 /* fw specific data */
287 struct ipz_mrmw_handle ipz_mr_handle; /* MR handle for h-calls */
288 struct h_galpas galpas;
292 struct ib_mw ib_mw; /* gen2 mw, must always be first in ehca_mw */
295 u8 never_bound; /* indication MW was never bound */
296 struct ipz_mrmw_handle ipz_mw_handle; /* MW handle for h-calls */
297 struct h_galpas galpas;
300 enum ehca_mr_pgi_type {
301 EHCA_MR_PGI_PHYS = 1, /* type of ehca_reg_phys_mr,
302 * ehca_rereg_phys_mr,
303 * ehca_reg_internal_maxmr */
304 EHCA_MR_PGI_USER = 2, /* type of ehca_reg_user_mr */
305 EHCA_MR_PGI_FMR = 3 /* type of ehca_map_phys_fmr */
308 struct ehca_mr_pginfo {
309 enum ehca_mr_pgi_type type;
312 u64 hwpage_size; /* hw page size used for this MR */
313 u64 num_hwpages; /* number of hw pages */
314 u64 hwpage_cnt; /* counter for hw pages */
315 u64 next_hwpage; /* next hw page in buffer/chunk/listelem */
318 struct { /* type EHCA_MR_PGI_PHYS section */
320 struct ib_phys_buf *phys_buf_array;
323 struct { /* type EHCA_MR_PGI_USER section */
324 struct ib_umem *region;
325 struct ib_umem_chunk *next_chunk;
328 struct { /* type EHCA_MR_PGI_FMR section */
336 /* output parameters for MR/FMR hipz calls */
337 struct ehca_mr_hipzout_parms {
338 struct ipz_mrmw_handle handle;
346 /* output parameters for MW hipz calls */
347 struct ehca_mw_hipzout_parms {
348 struct ipz_mrmw_handle handle;
354 struct ehca_ud_av av;
357 struct ehca_ucontext {
358 struct ib_ucontext ib_ucontext;
361 int ehca_init_pd_cache(void);
362 void ehca_cleanup_pd_cache(void);
363 int ehca_init_cq_cache(void);
364 void ehca_cleanup_cq_cache(void);
365 int ehca_init_qp_cache(void);
366 void ehca_cleanup_qp_cache(void);
367 int ehca_init_av_cache(void);
368 void ehca_cleanup_av_cache(void);
369 int ehca_init_mrmw_cache(void);
370 void ehca_cleanup_mrmw_cache(void);
371 int ehca_init_small_qp_cache(void);
372 void ehca_cleanup_small_qp_cache(void);
374 extern rwlock_t ehca_qp_idr_lock;
375 extern rwlock_t ehca_cq_idr_lock;
376 extern struct idr ehca_qp_idr;
377 extern struct idr ehca_cq_idr;
379 extern int ehca_static_rate;
380 extern int ehca_port_act_time;
381 extern int ehca_use_hp_mr;
382 extern int ehca_scaling_code;
383 extern int ehca_lock_hcalls;
384 extern int ehca_nr_ports;
385 extern int ehca_max_cq;
386 extern int ehca_max_qp;
388 struct ipzu_queue_resp {
389 u32 qe_size; /* queue entry size */
391 u32 queue_length; /* queue length allocated in bytes */
394 u32 offset; /* save offset within a page for small_qp */
397 struct ehca_create_cq_resp {
400 struct ipzu_queue_resp ipz_queue;
405 struct ehca_create_qp_resp {
411 /* qp_num assigned by ehca: sqp0/1 may have got different numbers */
415 struct ipzu_queue_resp ipz_squeue;
416 struct ipzu_queue_resp ipz_rqueue;
419 struct ehca_alloc_cq_parms {
421 u32 act_nr_of_entries;
423 struct ipz_eq_handle eq_handle;
426 enum ehca_service_type {
433 enum ehca_ll_comp_flags {
434 LLQP_SEND_COMP = 0x20,
435 LLQP_RECV_COMP = 0x40,
436 LLQP_COMP_MASK = 0x60,
439 struct ehca_alloc_queue_parms {
440 /* input parameters */
446 /* output parameters */
449 u32 queue_size; /* bytes for small queues, pages otherwise */
452 struct ehca_alloc_qp_parms {
453 struct ehca_alloc_queue_parms squeue;
454 struct ehca_alloc_queue_parms rqueue;
456 /* input parameters */
457 enum ehca_service_type servicetype;
460 enum ehca_ext_qp_type ext_type;
461 enum ehca_ll_comp_flags ll_comp_flags;
465 struct ipz_eq_handle eq_handle;
467 struct ipz_cq_handle send_cq_handle, recv_cq_handle;
469 u32 srq_qpn, srq_token, srq_limit;
471 /* output parameters */
473 struct ipz_qp_handle qp_handle;
474 struct h_galpas galpas;
477 int ehca_cq_assign_qp(struct ehca_cq *cq, struct ehca_qp *qp);
478 int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int qp_num);
479 struct ehca_qp *ehca_cq_get_qp(struct ehca_cq *cq, int qp_num);