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__
56 #include <linux/wait.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_aqp1;
99 enum ib_port_state port_state;
100 struct ehca_sma_attr saved_attr;
104 struct ib_device ib_device;
105 struct ibmebus_dev *ibmebus_dev;
108 struct list_head shca_list;
109 struct ipz_adapter_handle ipz_hca_handle;
110 struct ehca_sport sport[2];
113 struct ehca_mr *maxmr;
115 struct h_galpas galpas;
116 struct mutex modify_mutex;
127 enum ehca_ext_qp_type {
137 struct ib_srq ib_srq;
140 enum ehca_ext_qp_type ext_type;
141 struct ipz_queue ipz_squeue;
142 struct ipz_queue ipz_rqueue;
143 struct h_galpas galpas;
147 spinlock_t spinlock_s;
148 spinlock_t spinlock_r;
149 u32 sq_max_inline_data_size;
150 struct ipz_qp_handle ipz_qp_handle;
152 struct ib_qp_init_attr init_attr;
153 struct ehca_cq *send_cq;
154 struct ehca_cq *recv_cq;
155 unsigned int sqerr_purgeflag;
156 struct hlist_node list_entries;
157 /* mmap counter for resources mapped into user space */
163 #define IS_SRQ(qp) (qp->ext_type == EQPT_SRQ)
164 #define HAS_SQ(qp) (qp->ext_type != EQPT_SRQ)
165 #define HAS_RQ(qp) (qp->ext_type != EQPT_SRQBASE)
167 /* must be power of 2 */
168 #define QP_HASHTAB_LEN 8
172 struct ipz_queue ipz_queue;
173 struct h_galpas galpas;
178 struct ipz_cq_handle ipz_cq_handle;
181 struct hlist_head qp_hashtab[QP_HASHTAB_LEN];
182 struct list_head entry;
183 u32 nr_callbacks; /* #events assigned to cpu by scaling code */
184 atomic_t nr_events; /* #events seen */
185 wait_queue_head_t wait_completion;
186 spinlock_t task_lock;
188 /* mmap counter for resources mapped into user space */
194 EHCA_MR_FLAG_FMR = 0x80000000, /* FMR, created with ehca_alloc_fmr */
195 EHCA_MR_FLAG_MAXMR = 0x40000000, /* max-MR */
200 struct ib_mr ib_mr; /* must always be first in ehca_mr */
201 struct ib_fmr ib_fmr; /* must always be first in ehca_mr */
203 struct ib_umem *umem;
206 enum ehca_mr_flag flags;
207 u32 num_kpages; /* number of kernel pages */
208 u32 num_hwpages; /* number of hw pages to form MR */
209 int acl; /* ACL (stored here for usage in reregister) */
210 u64 *start; /* virtual start address (stored here for */
211 /* usage in reregister) */
212 u64 size; /* size (stored here for usage in reregister) */
213 u32 fmr_page_size; /* page size for FMR */
214 u32 fmr_max_pages; /* max pages for FMR */
215 u32 fmr_max_maps; /* max outstanding maps for FMR */
216 u32 fmr_map_cnt; /* map counter for FMR */
217 /* fw specific data */
218 struct ipz_mrmw_handle ipz_mr_handle; /* MR handle for h-calls */
219 struct h_galpas galpas;
223 struct ib_mw ib_mw; /* gen2 mw, must always be first in ehca_mw */
226 u8 never_bound; /* indication MW was never bound */
227 struct ipz_mrmw_handle ipz_mw_handle; /* MW handle for h-calls */
228 struct h_galpas galpas;
231 enum ehca_mr_pgi_type {
232 EHCA_MR_PGI_PHYS = 1, /* type of ehca_reg_phys_mr,
233 * ehca_rereg_phys_mr,
234 * ehca_reg_internal_maxmr */
235 EHCA_MR_PGI_USER = 2, /* type of ehca_reg_user_mr */
236 EHCA_MR_PGI_FMR = 3 /* type of ehca_map_phys_fmr */
239 struct ehca_mr_pginfo {
240 enum ehca_mr_pgi_type type;
243 u64 num_hwpages; /* number of hw pages */
244 u64 hwpage_cnt; /* counter for hw pages */
245 u64 next_hwpage; /* next hw page in buffer/chunk/listelem */
248 struct { /* type EHCA_MR_PGI_PHYS section */
250 struct ib_phys_buf *phys_buf_array;
253 struct { /* type EHCA_MR_PGI_USER section */
254 struct ib_umem *region;
255 struct ib_umem_chunk *next_chunk;
258 struct { /* type EHCA_MR_PGI_FMR section */
266 /* output parameters for MR/FMR hipz calls */
267 struct ehca_mr_hipzout_parms {
268 struct ipz_mrmw_handle handle;
276 /* output parameters for MW hipz calls */
277 struct ehca_mw_hipzout_parms {
278 struct ipz_mrmw_handle handle;
284 struct ehca_ud_av av;
287 struct ehca_ucontext {
288 struct ib_ucontext ib_ucontext;
291 int ehca_init_pd_cache(void);
292 void ehca_cleanup_pd_cache(void);
293 int ehca_init_cq_cache(void);
294 void ehca_cleanup_cq_cache(void);
295 int ehca_init_qp_cache(void);
296 void ehca_cleanup_qp_cache(void);
297 int ehca_init_av_cache(void);
298 void ehca_cleanup_av_cache(void);
299 int ehca_init_mrmw_cache(void);
300 void ehca_cleanup_mrmw_cache(void);
302 extern rwlock_t ehca_qp_idr_lock;
303 extern rwlock_t ehca_cq_idr_lock;
304 extern struct idr ehca_qp_idr;
305 extern struct idr ehca_cq_idr;
307 extern int ehca_static_rate;
308 extern int ehca_port_act_time;
309 extern int ehca_use_hp_mr;
310 extern int ehca_scaling_code;
312 struct ipzu_queue_resp {
313 u32 qe_size; /* queue entry size */
315 u32 queue_length; /* queue length allocated in bytes */
318 u32 dummy; /* padding for 8 byte alignment */
321 struct ehca_create_cq_resp {
324 struct ipzu_queue_resp ipz_queue;
327 struct ehca_create_qp_resp {
333 /* qp_num assigned by ehca: sqp0/1 may have got different numbers */
335 u32 dummy; /* padding for 8 byte alignment */
336 struct ipzu_queue_resp ipz_squeue;
337 struct ipzu_queue_resp ipz_rqueue;
340 struct ehca_alloc_cq_parms {
342 u32 act_nr_of_entries;
344 struct ipz_eq_handle eq_handle;
347 enum ehca_service_type {
354 enum ehca_ll_comp_flags {
355 LLQP_SEND_COMP = 0x20,
356 LLQP_RECV_COMP = 0x40,
357 LLQP_COMP_MASK = 0x60,
360 struct ehca_alloc_qp_parms {
361 /* input parameters */
362 enum ehca_service_type servicetype;
364 enum ehca_ext_qp_type ext_type;
365 enum ehca_ll_comp_flags ll_comp_flags;
367 int max_send_wr, max_recv_wr;
368 int max_send_sge, max_recv_sge;
372 struct ipz_eq_handle eq_handle;
374 struct ipz_cq_handle send_cq_handle, recv_cq_handle;
376 u32 srq_qpn, srq_token, srq_limit;
378 /* output parameters */
380 struct ipz_qp_handle qp_handle;
381 struct h_galpas galpas;
383 u16 act_nr_send_wqes;
384 u16 act_nr_recv_wqes;
392 int ehca_cq_assign_qp(struct ehca_cq *cq, struct ehca_qp *qp);
393 int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int qp_num);
394 struct ehca_qp *ehca_cq_get_qp(struct ehca_cq *cq, int qp_num);