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
70 struct ehca_eqe_cache_entry {
77 struct ipz_queue ipz_queue;
78 struct ipz_eq_handle ipz_eq_handle;
79 struct work_struct work;
80 struct h_galpas galpas;
84 struct tasklet_struct interrupt_task;
86 spinlock_t irq_spinlock;
87 struct ehca_eqe_cache_entry eqe_cache[EHCA_EQE_CACHE_SIZE];
90 struct ehca_sma_attr {
91 u16 lid, lmc, sm_sl, sm_lid;
92 u16 pkey_tbl_len, pkeys[16];
96 struct ib_cq *ibcq_aqp1;
97 struct ib_qp *ibqp_sqp[2];
98 /* lock to serialze modify_qp() calls for sqp in normal
99 * and irq path (when event PORT_ACTIVE is received first time)
101 spinlock_t mod_sqp_lock;
102 enum ib_port_state port_state;
103 struct ehca_sma_attr saved_attr;
106 #define HCA_CAP_MR_PGSIZE_4K 0x80000000
107 #define HCA_CAP_MR_PGSIZE_64K 0x40000000
108 #define HCA_CAP_MR_PGSIZE_1M 0x20000000
109 #define HCA_CAP_MR_PGSIZE_16M 0x10000000
112 struct ib_device ib_device;
113 struct of_device *ofdev;
116 struct list_head shca_list;
117 struct ipz_adapter_handle ipz_hca_handle;
118 struct ehca_sport sport[2];
121 struct ehca_mr *maxmr;
123 struct h_galpas galpas;
124 struct mutex modify_mutex;
126 /* MR pgsize: bit 0-3 means 4K, 64K, 1M, 16M respectively */
127 u32 hca_cap_mr_pgsize;
135 /* small queue mgmt */
137 struct list_head free[2];
138 struct list_head full[2];
141 enum ehca_ext_qp_type {
148 /* struct to cache modify_qp()'s parms for GSI/SMI qp */
149 struct ehca_mod_qp_parm {
151 struct ib_qp_attr attr;
154 #define EHCA_MOD_QP_PARM_MAX 4
159 struct ib_srq ib_srq;
162 enum ehca_ext_qp_type ext_type;
163 struct ipz_queue ipz_squeue;
164 struct ipz_queue ipz_rqueue;
165 struct h_galpas galpas;
169 spinlock_t spinlock_s;
170 spinlock_t spinlock_r;
171 u32 sq_max_inline_data_size;
172 struct ipz_qp_handle ipz_qp_handle;
174 struct ib_qp_init_attr init_attr;
175 struct ehca_cq *send_cq;
176 struct ehca_cq *recv_cq;
177 unsigned int sqerr_purgeflag;
178 struct hlist_node list_entries;
179 /* array to cache modify_qp()'s parms for GSI/SMI qp */
180 struct ehca_mod_qp_parm *mod_qp_parm;
182 /* mmap counter for resources mapped into user space */
188 #define IS_SRQ(qp) (qp->ext_type == EQPT_SRQ)
189 #define HAS_SQ(qp) (qp->ext_type != EQPT_SRQ)
190 #define HAS_RQ(qp) (qp->ext_type != EQPT_SRQBASE)
192 /* must be power of 2 */
193 #define QP_HASHTAB_LEN 8
197 struct ipz_queue ipz_queue;
198 struct h_galpas galpas;
203 struct ipz_cq_handle ipz_cq_handle;
206 struct hlist_head qp_hashtab[QP_HASHTAB_LEN];
207 struct list_head entry;
208 u32 nr_callbacks; /* #events assigned to cpu by scaling code */
209 atomic_t nr_events; /* #events seen */
210 wait_queue_head_t wait_completion;
211 spinlock_t task_lock;
213 /* mmap counter for resources mapped into user space */
219 EHCA_MR_FLAG_FMR = 0x80000000, /* FMR, created with ehca_alloc_fmr */
220 EHCA_MR_FLAG_MAXMR = 0x40000000, /* max-MR */
225 struct ib_mr ib_mr; /* must always be first in ehca_mr */
226 struct ib_fmr ib_fmr; /* must always be first in ehca_mr */
228 struct ib_umem *umem;
231 enum ehca_mr_flag flags;
232 u32 num_kpages; /* number of kernel pages */
233 u32 num_hwpages; /* number of hw pages to form MR */
234 u64 hwpage_size; /* hw page size used for this MR */
235 int acl; /* ACL (stored here for usage in reregister) */
236 u64 *start; /* virtual start address (stored here for */
237 /* usage in reregister) */
238 u64 size; /* size (stored here for usage in reregister) */
239 u32 fmr_page_size; /* page size for FMR */
240 u32 fmr_max_pages; /* max pages for FMR */
241 u32 fmr_max_maps; /* max outstanding maps for FMR */
242 u32 fmr_map_cnt; /* map counter for FMR */
243 /* fw specific data */
244 struct ipz_mrmw_handle ipz_mr_handle; /* MR handle for h-calls */
245 struct h_galpas galpas;
249 struct ib_mw ib_mw; /* gen2 mw, must always be first in ehca_mw */
252 u8 never_bound; /* indication MW was never bound */
253 struct ipz_mrmw_handle ipz_mw_handle; /* MW handle for h-calls */
254 struct h_galpas galpas;
257 enum ehca_mr_pgi_type {
258 EHCA_MR_PGI_PHYS = 1, /* type of ehca_reg_phys_mr,
259 * ehca_rereg_phys_mr,
260 * ehca_reg_internal_maxmr */
261 EHCA_MR_PGI_USER = 2, /* type of ehca_reg_user_mr */
262 EHCA_MR_PGI_FMR = 3 /* type of ehca_map_phys_fmr */
265 struct ehca_mr_pginfo {
266 enum ehca_mr_pgi_type type;
269 u64 hwpage_size; /* hw page size used for this MR */
270 u64 num_hwpages; /* number of hw pages */
271 u64 hwpage_cnt; /* counter for hw pages */
272 u64 next_hwpage; /* next hw page in buffer/chunk/listelem */
275 struct { /* type EHCA_MR_PGI_PHYS section */
277 struct ib_phys_buf *phys_buf_array;
280 struct { /* type EHCA_MR_PGI_USER section */
281 struct ib_umem *region;
282 struct ib_umem_chunk *next_chunk;
285 struct { /* type EHCA_MR_PGI_FMR section */
293 /* output parameters for MR/FMR hipz calls */
294 struct ehca_mr_hipzout_parms {
295 struct ipz_mrmw_handle handle;
303 /* output parameters for MW hipz calls */
304 struct ehca_mw_hipzout_parms {
305 struct ipz_mrmw_handle handle;
311 struct ehca_ud_av av;
314 struct ehca_ucontext {
315 struct ib_ucontext ib_ucontext;
318 int ehca_init_pd_cache(void);
319 void ehca_cleanup_pd_cache(void);
320 int ehca_init_cq_cache(void);
321 void ehca_cleanup_cq_cache(void);
322 int ehca_init_qp_cache(void);
323 void ehca_cleanup_qp_cache(void);
324 int ehca_init_av_cache(void);
325 void ehca_cleanup_av_cache(void);
326 int ehca_init_mrmw_cache(void);
327 void ehca_cleanup_mrmw_cache(void);
328 int ehca_init_small_qp_cache(void);
329 void ehca_cleanup_small_qp_cache(void);
331 extern rwlock_t ehca_qp_idr_lock;
332 extern rwlock_t ehca_cq_idr_lock;
333 extern struct idr ehca_qp_idr;
334 extern struct idr ehca_cq_idr;
336 extern int ehca_static_rate;
337 extern int ehca_port_act_time;
338 extern int ehca_use_hp_mr;
339 extern int ehca_scaling_code;
340 extern int ehca_lock_hcalls;
341 extern int ehca_nr_ports;
343 struct ipzu_queue_resp {
344 u32 qe_size; /* queue entry size */
346 u32 queue_length; /* queue length allocated in bytes */
349 u32 offset; /* save offset within a page for small_qp */
352 struct ehca_create_cq_resp {
355 struct ipzu_queue_resp ipz_queue;
360 struct ehca_create_qp_resp {
366 /* qp_num assigned by ehca: sqp0/1 may have got different numbers */
370 struct ipzu_queue_resp ipz_squeue;
371 struct ipzu_queue_resp ipz_rqueue;
374 struct ehca_alloc_cq_parms {
376 u32 act_nr_of_entries;
378 struct ipz_eq_handle eq_handle;
381 enum ehca_service_type {
388 enum ehca_ll_comp_flags {
389 LLQP_SEND_COMP = 0x20,
390 LLQP_RECV_COMP = 0x40,
391 LLQP_COMP_MASK = 0x60,
394 struct ehca_alloc_queue_parms {
395 /* input parameters */
401 /* output parameters */
404 u32 queue_size; /* bytes for small queues, pages otherwise */
407 struct ehca_alloc_qp_parms {
408 struct ehca_alloc_queue_parms squeue;
409 struct ehca_alloc_queue_parms rqueue;
411 /* input parameters */
412 enum ehca_service_type servicetype;
415 enum ehca_ext_qp_type ext_type;
416 enum ehca_ll_comp_flags ll_comp_flags;
420 struct ipz_eq_handle eq_handle;
422 struct ipz_cq_handle send_cq_handle, recv_cq_handle;
424 u32 srq_qpn, srq_token, srq_limit;
426 /* output parameters */
428 struct ipz_qp_handle qp_handle;
429 struct h_galpas galpas;
432 int ehca_cq_assign_qp(struct ehca_cq *cq, struct ehca_qp *qp);
433 int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int qp_num);
434 struct ehca_qp *ehca_cq_get_qp(struct ehca_cq *cq, int qp_num);