Commit | Line | Data |
---|---|---|
fab97220 HS |
1 | /* |
2 | * IBM eServer eHCA Infiniband device driver for Linux on POWER | |
3 | * | |
4 | * module start stop, hca detection | |
5 | * | |
6 | * Authors: Heiko J Schick <schickhj@de.ibm.com> | |
7 | * Hoang-Nam Nguyen <hnguyen@de.ibm.com> | |
8 | * Joachim Fenkes <fenkes@de.ibm.com> | |
9 | * | |
10 | * Copyright (c) 2005 IBM Corporation | |
11 | * | |
12 | * All rights reserved. | |
13 | * | |
14 | * This source code is distributed under a dual license of GPL v2.0 and OpenIB | |
15 | * BSD. | |
16 | * | |
17 | * OpenIB BSD License | |
18 | * | |
19 | * Redistribution and use in source and binary forms, with or without | |
20 | * modification, are permitted provided that the following conditions are met: | |
21 | * | |
22 | * Redistributions of source code must retain the above copyright notice, this | |
23 | * list of conditions and the following disclaimer. | |
24 | * | |
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. | |
29 | * | |
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. | |
41 | */ | |
42 | ||
7e28db5d HNN |
43 | #ifdef CONFIG_PPC_64K_PAGES |
44 | #include <linux/slab.h> | |
45 | #endif | |
fab97220 HS |
46 | #include "ehca_classes.h" |
47 | #include "ehca_iverbs.h" | |
48 | #include "ehca_mrmw.h" | |
49 | #include "ehca_tools.h" | |
50 | #include "hcp_if.h" | |
51 | ||
52 | MODULE_LICENSE("Dual BSD/GPL"); | |
53 | MODULE_AUTHOR("Christoph Raisch <raisch@de.ibm.com>"); | |
54 | MODULE_DESCRIPTION("IBM eServer HCA InfiniBand Device Driver"); | |
31726798 | 55 | MODULE_VERSION("SVNEHCA_0022"); |
fab97220 HS |
56 | |
57 | int ehca_open_aqp1 = 0; | |
58 | int ehca_debug_level = 0; | |
59 | int ehca_hw_level = 0; | |
60 | int ehca_nr_ports = 2; | |
61 | int ehca_use_hp_mr = 0; | |
62 | int ehca_port_act_time = 30; | |
63 | int ehca_poll_all_eqs = 1; | |
64 | int ehca_static_rate = -1; | |
4fd30060 | 65 | int ehca_scaling_code = 1; |
fab97220 HS |
66 | |
67 | module_param_named(open_aqp1, ehca_open_aqp1, int, 0); | |
68 | module_param_named(debug_level, ehca_debug_level, int, 0); | |
69 | module_param_named(hw_level, ehca_hw_level, int, 0); | |
70 | module_param_named(nr_ports, ehca_nr_ports, int, 0); | |
71 | module_param_named(use_hp_mr, ehca_use_hp_mr, int, 0); | |
72 | module_param_named(port_act_time, ehca_port_act_time, int, 0); | |
73 | module_param_named(poll_all_eqs, ehca_poll_all_eqs, int, 0); | |
74 | module_param_named(static_rate, ehca_static_rate, int, 0); | |
4fd30060 | 75 | module_param_named(scaling_code, ehca_scaling_code, int, 0); |
fab97220 HS |
76 | |
77 | MODULE_PARM_DESC(open_aqp1, | |
78 | "AQP1 on startup (0: no (default), 1: yes)"); | |
79 | MODULE_PARM_DESC(debug_level, | |
80 | "debug level" | |
81 | " (0: no debug traces (default), 1: with debug traces)"); | |
82 | MODULE_PARM_DESC(hw_level, | |
83 | "hardware level" | |
84 | " (0: autosensing (default), 1: v. 0.20, 2: v. 0.21)"); | |
85 | MODULE_PARM_DESC(nr_ports, | |
86 | "number of connected ports (default: 2)"); | |
87 | MODULE_PARM_DESC(use_hp_mr, | |
88 | "high performance MRs (0: no (default), 1: yes)"); | |
89 | MODULE_PARM_DESC(port_act_time, | |
90 | "time to wait for port activation (default: 30 sec)"); | |
91 | MODULE_PARM_DESC(poll_all_eqs, | |
92 | "polls all event queues periodically" | |
93 | " (0: no, 1: yes (default))"); | |
94 | MODULE_PARM_DESC(static_rate, | |
95 | "set permanent static rate (default: disabled)"); | |
4fd30060 HNN |
96 | MODULE_PARM_DESC(scaling_code, |
97 | "set scaling code (0: disabled, 1: enabled/default)"); | |
fab97220 HS |
98 | |
99 | spinlock_t ehca_qp_idr_lock; | |
100 | spinlock_t ehca_cq_idr_lock; | |
101 | DEFINE_IDR(ehca_qp_idr); | |
102 | DEFINE_IDR(ehca_cq_idr); | |
103 | ||
7e28db5d | 104 | |
fab97220 HS |
105 | static struct list_head shca_list; /* list of all registered ehcas */ |
106 | static spinlock_t shca_list_lock; | |
107 | ||
108 | static struct timer_list poll_eqs_timer; | |
109 | ||
7e28db5d HNN |
110 | #ifdef CONFIG_PPC_64K_PAGES |
111 | static struct kmem_cache *ctblk_cache = NULL; | |
112 | ||
f2d91361 | 113 | void *ehca_alloc_fw_ctrlblock(gfp_t flags) |
7e28db5d | 114 | { |
f2d91361 | 115 | void *ret = kmem_cache_zalloc(ctblk_cache, flags); |
7e28db5d HNN |
116 | if (!ret) |
117 | ehca_gen_err("Out of memory for ctblk"); | |
118 | return ret; | |
119 | } | |
120 | ||
121 | void ehca_free_fw_ctrlblock(void *ptr) | |
122 | { | |
123 | if (ptr) | |
124 | kmem_cache_free(ctblk_cache, ptr); | |
125 | ||
126 | } | |
127 | #endif | |
128 | ||
fab97220 HS |
129 | static int ehca_create_slab_caches(void) |
130 | { | |
131 | int ret; | |
132 | ||
133 | ret = ehca_init_pd_cache(); | |
134 | if (ret) { | |
135 | ehca_gen_err("Cannot create PD SLAB cache."); | |
136 | return ret; | |
137 | } | |
138 | ||
139 | ret = ehca_init_cq_cache(); | |
140 | if (ret) { | |
141 | ehca_gen_err("Cannot create CQ SLAB cache."); | |
142 | goto create_slab_caches2; | |
143 | } | |
144 | ||
145 | ret = ehca_init_qp_cache(); | |
146 | if (ret) { | |
147 | ehca_gen_err("Cannot create QP SLAB cache."); | |
148 | goto create_slab_caches3; | |
149 | } | |
150 | ||
151 | ret = ehca_init_av_cache(); | |
152 | if (ret) { | |
153 | ehca_gen_err("Cannot create AV SLAB cache."); | |
154 | goto create_slab_caches4; | |
155 | } | |
156 | ||
157 | ret = ehca_init_mrmw_cache(); | |
158 | if (ret) { | |
159 | ehca_gen_err("Cannot create MR&MW SLAB cache."); | |
160 | goto create_slab_caches5; | |
161 | } | |
162 | ||
7e28db5d HNN |
163 | #ifdef CONFIG_PPC_64K_PAGES |
164 | ctblk_cache = kmem_cache_create("ehca_cache_ctblk", | |
165 | EHCA_PAGESIZE, H_CB_ALIGNMENT, | |
166 | SLAB_HWCACHE_ALIGN, | |
167 | NULL, NULL); | |
168 | if (!ctblk_cache) { | |
169 | ehca_gen_err("Cannot create ctblk SLAB cache."); | |
170 | ehca_cleanup_mrmw_cache(); | |
171 | goto create_slab_caches5; | |
172 | } | |
173 | #endif | |
fab97220 HS |
174 | return 0; |
175 | ||
176 | create_slab_caches5: | |
177 | ehca_cleanup_av_cache(); | |
178 | ||
179 | create_slab_caches4: | |
180 | ehca_cleanup_qp_cache(); | |
181 | ||
182 | create_slab_caches3: | |
183 | ehca_cleanup_cq_cache(); | |
184 | ||
185 | create_slab_caches2: | |
186 | ehca_cleanup_pd_cache(); | |
187 | ||
188 | return ret; | |
189 | } | |
190 | ||
191 | static void ehca_destroy_slab_caches(void) | |
192 | { | |
193 | ehca_cleanup_mrmw_cache(); | |
194 | ehca_cleanup_av_cache(); | |
195 | ehca_cleanup_qp_cache(); | |
196 | ehca_cleanup_cq_cache(); | |
197 | ehca_cleanup_pd_cache(); | |
7e28db5d HNN |
198 | #ifdef CONFIG_PPC_64K_PAGES |
199 | if (ctblk_cache) | |
200 | kmem_cache_destroy(ctblk_cache); | |
201 | #endif | |
fab97220 HS |
202 | } |
203 | ||
204 | #define EHCA_HCAAVER EHCA_BMASK_IBM(32,39) | |
205 | #define EHCA_REVID EHCA_BMASK_IBM(40,63) | |
206 | ||
207 | int ehca_sense_attributes(struct ehca_shca *shca) | |
208 | { | |
209 | int ret = 0; | |
210 | u64 h_ret; | |
211 | struct hipz_query_hca *rblock; | |
212 | ||
f2d91361 | 213 | rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); |
fab97220 HS |
214 | if (!rblock) { |
215 | ehca_gen_err("Cannot allocate rblock memory."); | |
216 | return -ENOMEM; | |
217 | } | |
218 | ||
219 | h_ret = hipz_h_query_hca(shca->ipz_hca_handle, rblock); | |
220 | if (h_ret != H_SUCCESS) { | |
221 | ehca_gen_err("Cannot query device properties. h_ret=%lx", | |
222 | h_ret); | |
223 | ret = -EPERM; | |
224 | goto num_ports1; | |
225 | } | |
226 | ||
227 | if (ehca_nr_ports == 1) | |
228 | shca->num_ports = 1; | |
229 | else | |
230 | shca->num_ports = (u8)rblock->num_ports; | |
231 | ||
232 | ehca_gen_dbg(" ... found %x ports", rblock->num_ports); | |
233 | ||
234 | if (ehca_hw_level == 0) { | |
235 | u32 hcaaver; | |
236 | u32 revid; | |
237 | ||
238 | hcaaver = EHCA_BMASK_GET(EHCA_HCAAVER, rblock->hw_ver); | |
239 | revid = EHCA_BMASK_GET(EHCA_REVID, rblock->hw_ver); | |
240 | ||
241 | ehca_gen_dbg(" ... hardware version=%x:%x", hcaaver, revid); | |
242 | ||
243 | if ((hcaaver == 1) && (revid == 0)) | |
244 | shca->hw_level = 0; | |
245 | else if ((hcaaver == 1) && (revid == 1)) | |
246 | shca->hw_level = 1; | |
247 | else if ((hcaaver == 1) && (revid == 2)) | |
248 | shca->hw_level = 2; | |
249 | } | |
250 | ehca_gen_dbg(" ... hardware level=%x", shca->hw_level); | |
251 | ||
252 | shca->sport[0].rate = IB_RATE_30_GBPS; | |
253 | shca->sport[1].rate = IB_RATE_30_GBPS; | |
254 | ||
255 | num_ports1: | |
7e28db5d | 256 | ehca_free_fw_ctrlblock(rblock); |
fab97220 HS |
257 | return ret; |
258 | } | |
259 | ||
260 | static int init_node_guid(struct ehca_shca *shca) | |
261 | { | |
262 | int ret = 0; | |
263 | struct hipz_query_hca *rblock; | |
264 | ||
f2d91361 | 265 | rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); |
fab97220 HS |
266 | if (!rblock) { |
267 | ehca_err(&shca->ib_device, "Can't allocate rblock memory."); | |
268 | return -ENOMEM; | |
269 | } | |
270 | ||
271 | if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) { | |
272 | ehca_err(&shca->ib_device, "Can't query device properties"); | |
273 | ret = -EINVAL; | |
274 | goto init_node_guid1; | |
275 | } | |
276 | ||
277 | memcpy(&shca->ib_device.node_guid, &rblock->node_guid, sizeof(u64)); | |
278 | ||
279 | init_node_guid1: | |
7e28db5d | 280 | ehca_free_fw_ctrlblock(rblock); |
fab97220 HS |
281 | return ret; |
282 | } | |
283 | ||
0f248d9c | 284 | int ehca_init_device(struct ehca_shca *shca) |
fab97220 HS |
285 | { |
286 | int ret; | |
287 | ||
288 | ret = init_node_guid(shca); | |
289 | if (ret) | |
290 | return ret; | |
291 | ||
292 | strlcpy(shca->ib_device.name, "ehca%d", IB_DEVICE_NAME_MAX); | |
293 | shca->ib_device.owner = THIS_MODULE; | |
294 | ||
4c34bdf5 | 295 | shca->ib_device.uverbs_abi_ver = 6; |
fab97220 HS |
296 | shca->ib_device.uverbs_cmd_mask = |
297 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
298 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
299 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
300 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
301 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
302 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
303 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
304 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
305 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
306 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
307 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
308 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
309 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | | |
310 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
311 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
312 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); | |
313 | ||
07ebafba | 314 | shca->ib_device.node_type = RDMA_NODE_IB_CA; |
fab97220 HS |
315 | shca->ib_device.phys_port_cnt = shca->num_ports; |
316 | shca->ib_device.dma_device = &shca->ibmebus_dev->ofdev.dev; | |
317 | shca->ib_device.query_device = ehca_query_device; | |
318 | shca->ib_device.query_port = ehca_query_port; | |
319 | shca->ib_device.query_gid = ehca_query_gid; | |
320 | shca->ib_device.query_pkey = ehca_query_pkey; | |
321 | /* shca->in_device.modify_device = ehca_modify_device */ | |
322 | shca->ib_device.modify_port = ehca_modify_port; | |
323 | shca->ib_device.alloc_ucontext = ehca_alloc_ucontext; | |
324 | shca->ib_device.dealloc_ucontext = ehca_dealloc_ucontext; | |
325 | shca->ib_device.alloc_pd = ehca_alloc_pd; | |
326 | shca->ib_device.dealloc_pd = ehca_dealloc_pd; | |
327 | shca->ib_device.create_ah = ehca_create_ah; | |
328 | /* shca->ib_device.modify_ah = ehca_modify_ah; */ | |
329 | shca->ib_device.query_ah = ehca_query_ah; | |
330 | shca->ib_device.destroy_ah = ehca_destroy_ah; | |
331 | shca->ib_device.create_qp = ehca_create_qp; | |
332 | shca->ib_device.modify_qp = ehca_modify_qp; | |
333 | shca->ib_device.query_qp = ehca_query_qp; | |
334 | shca->ib_device.destroy_qp = ehca_destroy_qp; | |
335 | shca->ib_device.post_send = ehca_post_send; | |
336 | shca->ib_device.post_recv = ehca_post_recv; | |
337 | shca->ib_device.create_cq = ehca_create_cq; | |
338 | shca->ib_device.destroy_cq = ehca_destroy_cq; | |
339 | shca->ib_device.resize_cq = ehca_resize_cq; | |
340 | shca->ib_device.poll_cq = ehca_poll_cq; | |
341 | /* shca->ib_device.peek_cq = ehca_peek_cq; */ | |
342 | shca->ib_device.req_notify_cq = ehca_req_notify_cq; | |
343 | /* shca->ib_device.req_ncomp_notif = ehca_req_ncomp_notif; */ | |
344 | shca->ib_device.get_dma_mr = ehca_get_dma_mr; | |
345 | shca->ib_device.reg_phys_mr = ehca_reg_phys_mr; | |
346 | shca->ib_device.reg_user_mr = ehca_reg_user_mr; | |
347 | shca->ib_device.query_mr = ehca_query_mr; | |
348 | shca->ib_device.dereg_mr = ehca_dereg_mr; | |
349 | shca->ib_device.rereg_phys_mr = ehca_rereg_phys_mr; | |
350 | shca->ib_device.alloc_mw = ehca_alloc_mw; | |
351 | shca->ib_device.bind_mw = ehca_bind_mw; | |
352 | shca->ib_device.dealloc_mw = ehca_dealloc_mw; | |
353 | shca->ib_device.alloc_fmr = ehca_alloc_fmr; | |
354 | shca->ib_device.map_phys_fmr = ehca_map_phys_fmr; | |
355 | shca->ib_device.unmap_fmr = ehca_unmap_fmr; | |
356 | shca->ib_device.dealloc_fmr = ehca_dealloc_fmr; | |
357 | shca->ib_device.attach_mcast = ehca_attach_mcast; | |
358 | shca->ib_device.detach_mcast = ehca_detach_mcast; | |
359 | /* shca->ib_device.process_mad = ehca_process_mad; */ | |
360 | shca->ib_device.mmap = ehca_mmap; | |
361 | ||
fab97220 HS |
362 | return ret; |
363 | } | |
364 | ||
365 | static int ehca_create_aqp1(struct ehca_shca *shca, u32 port) | |
366 | { | |
367 | struct ehca_sport *sport = &shca->sport[port - 1]; | |
368 | struct ib_cq *ibcq; | |
369 | struct ib_qp *ibqp; | |
370 | struct ib_qp_init_attr qp_init_attr; | |
371 | int ret; | |
372 | ||
373 | if (sport->ibcq_aqp1) { | |
374 | ehca_err(&shca->ib_device, "AQP1 CQ is already created."); | |
375 | return -EPERM; | |
376 | } | |
377 | ||
378 | ibcq = ib_create_cq(&shca->ib_device, NULL, NULL, (void*)(-1), 10); | |
379 | if (IS_ERR(ibcq)) { | |
380 | ehca_err(&shca->ib_device, "Cannot create AQP1 CQ."); | |
381 | return PTR_ERR(ibcq); | |
382 | } | |
383 | sport->ibcq_aqp1 = ibcq; | |
384 | ||
385 | if (sport->ibqp_aqp1) { | |
386 | ehca_err(&shca->ib_device, "AQP1 QP is already created."); | |
387 | ret = -EPERM; | |
388 | goto create_aqp1; | |
389 | } | |
390 | ||
391 | memset(&qp_init_attr, 0, sizeof(struct ib_qp_init_attr)); | |
392 | qp_init_attr.send_cq = ibcq; | |
393 | qp_init_attr.recv_cq = ibcq; | |
394 | qp_init_attr.sq_sig_type = IB_SIGNAL_ALL_WR; | |
395 | qp_init_attr.cap.max_send_wr = 100; | |
396 | qp_init_attr.cap.max_recv_wr = 100; | |
397 | qp_init_attr.cap.max_send_sge = 2; | |
398 | qp_init_attr.cap.max_recv_sge = 1; | |
399 | qp_init_attr.qp_type = IB_QPT_GSI; | |
400 | qp_init_attr.port_num = port; | |
401 | qp_init_attr.qp_context = NULL; | |
402 | qp_init_attr.event_handler = NULL; | |
403 | qp_init_attr.srq = NULL; | |
404 | ||
405 | ibqp = ib_create_qp(&shca->pd->ib_pd, &qp_init_attr); | |
406 | if (IS_ERR(ibqp)) { | |
407 | ehca_err(&shca->ib_device, "Cannot create AQP1 QP."); | |
408 | ret = PTR_ERR(ibqp); | |
409 | goto create_aqp1; | |
410 | } | |
411 | sport->ibqp_aqp1 = ibqp; | |
412 | ||
413 | return 0; | |
414 | ||
415 | create_aqp1: | |
416 | ib_destroy_cq(sport->ibcq_aqp1); | |
417 | return ret; | |
418 | } | |
419 | ||
420 | static int ehca_destroy_aqp1(struct ehca_sport *sport) | |
421 | { | |
422 | int ret; | |
423 | ||
424 | ret = ib_destroy_qp(sport->ibqp_aqp1); | |
425 | if (ret) { | |
426 | ehca_gen_err("Cannot destroy AQP1 QP. ret=%x", ret); | |
427 | return ret; | |
428 | } | |
429 | ||
430 | ret = ib_destroy_cq(sport->ibcq_aqp1); | |
431 | if (ret) | |
432 | ehca_gen_err("Cannot destroy AQP1 CQ. ret=%x", ret); | |
433 | ||
434 | return ret; | |
435 | } | |
436 | ||
437 | static ssize_t ehca_show_debug_level(struct device_driver *ddp, char *buf) | |
438 | { | |
78d8d5f9 HNN |
439 | return snprintf(buf, PAGE_SIZE, "%d\n", |
440 | ehca_debug_level); | |
fab97220 HS |
441 | } |
442 | ||
443 | static ssize_t ehca_store_debug_level(struct device_driver *ddp, | |
444 | const char *buf, size_t count) | |
445 | { | |
446 | int value = (*buf) - '0'; | |
447 | if (value >= 0 && value <= 9) | |
448 | ehca_debug_level = value; | |
449 | return 1; | |
450 | } | |
451 | ||
452 | DRIVER_ATTR(debug_level, S_IRUSR | S_IWUSR, | |
453 | ehca_show_debug_level, ehca_store_debug_level); | |
454 | ||
455 | void ehca_create_driver_sysfs(struct ibmebus_driver *drv) | |
456 | { | |
457 | driver_create_file(&drv->driver, &driver_attr_debug_level); | |
458 | } | |
459 | ||
460 | void ehca_remove_driver_sysfs(struct ibmebus_driver *drv) | |
461 | { | |
462 | driver_remove_file(&drv->driver, &driver_attr_debug_level); | |
463 | } | |
464 | ||
465 | #define EHCA_RESOURCE_ATTR(name) \ | |
466 | static ssize_t ehca_show_##name(struct device *dev, \ | |
467 | struct device_attribute *attr, \ | |
468 | char *buf) \ | |
469 | { \ | |
470 | struct ehca_shca *shca; \ | |
471 | struct hipz_query_hca *rblock; \ | |
472 | int data; \ | |
473 | \ | |
474 | shca = dev->driver_data; \ | |
475 | \ | |
f2d91361 | 476 | rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); \ |
fab97220 HS |
477 | if (!rblock) { \ |
478 | dev_err(dev, "Can't allocate rblock memory."); \ | |
479 | return 0; \ | |
480 | } \ | |
481 | \ | |
482 | if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) { \ | |
483 | dev_err(dev, "Can't query device properties"); \ | |
7e28db5d | 484 | ehca_free_fw_ctrlblock(rblock); \ |
fab97220 HS |
485 | return 0; \ |
486 | } \ | |
487 | \ | |
488 | data = rblock->name; \ | |
7e28db5d | 489 | ehca_free_fw_ctrlblock(rblock); \ |
fab97220 HS |
490 | \ |
491 | if ((strcmp(#name, "num_ports") == 0) && (ehca_nr_ports == 1)) \ | |
492 | return snprintf(buf, 256, "1\n"); \ | |
493 | else \ | |
494 | return snprintf(buf, 256, "%d\n", data); \ | |
495 | \ | |
496 | } \ | |
497 | static DEVICE_ATTR(name, S_IRUGO, ehca_show_##name, NULL); | |
498 | ||
499 | EHCA_RESOURCE_ATTR(num_ports); | |
500 | EHCA_RESOURCE_ATTR(hw_ver); | |
501 | EHCA_RESOURCE_ATTR(max_eq); | |
502 | EHCA_RESOURCE_ATTR(cur_eq); | |
503 | EHCA_RESOURCE_ATTR(max_cq); | |
504 | EHCA_RESOURCE_ATTR(cur_cq); | |
505 | EHCA_RESOURCE_ATTR(max_qp); | |
506 | EHCA_RESOURCE_ATTR(cur_qp); | |
507 | EHCA_RESOURCE_ATTR(max_mr); | |
508 | EHCA_RESOURCE_ATTR(cur_mr); | |
509 | EHCA_RESOURCE_ATTR(max_mw); | |
510 | EHCA_RESOURCE_ATTR(cur_mw); | |
511 | EHCA_RESOURCE_ATTR(max_pd); | |
512 | EHCA_RESOURCE_ATTR(max_ah); | |
513 | ||
514 | static ssize_t ehca_show_adapter_handle(struct device *dev, | |
515 | struct device_attribute *attr, | |
516 | char *buf) | |
517 | { | |
518 | struct ehca_shca *shca = dev->driver_data; | |
519 | ||
520 | return sprintf(buf, "%lx\n", shca->ipz_hca_handle.handle); | |
521 | ||
522 | } | |
523 | static DEVICE_ATTR(adapter_handle, S_IRUGO, ehca_show_adapter_handle, NULL); | |
524 | ||
525 | ||
526 | void ehca_create_device_sysfs(struct ibmebus_dev *dev) | |
527 | { | |
528 | device_create_file(&dev->ofdev.dev, &dev_attr_adapter_handle); | |
529 | device_create_file(&dev->ofdev.dev, &dev_attr_num_ports); | |
530 | device_create_file(&dev->ofdev.dev, &dev_attr_hw_ver); | |
531 | device_create_file(&dev->ofdev.dev, &dev_attr_max_eq); | |
532 | device_create_file(&dev->ofdev.dev, &dev_attr_cur_eq); | |
533 | device_create_file(&dev->ofdev.dev, &dev_attr_max_cq); | |
534 | device_create_file(&dev->ofdev.dev, &dev_attr_cur_cq); | |
535 | device_create_file(&dev->ofdev.dev, &dev_attr_max_qp); | |
536 | device_create_file(&dev->ofdev.dev, &dev_attr_cur_qp); | |
537 | device_create_file(&dev->ofdev.dev, &dev_attr_max_mr); | |
538 | device_create_file(&dev->ofdev.dev, &dev_attr_cur_mr); | |
539 | device_create_file(&dev->ofdev.dev, &dev_attr_max_mw); | |
540 | device_create_file(&dev->ofdev.dev, &dev_attr_cur_mw); | |
541 | device_create_file(&dev->ofdev.dev, &dev_attr_max_pd); | |
542 | device_create_file(&dev->ofdev.dev, &dev_attr_max_ah); | |
543 | } | |
544 | ||
545 | void ehca_remove_device_sysfs(struct ibmebus_dev *dev) | |
546 | { | |
547 | device_remove_file(&dev->ofdev.dev, &dev_attr_adapter_handle); | |
548 | device_remove_file(&dev->ofdev.dev, &dev_attr_num_ports); | |
549 | device_remove_file(&dev->ofdev.dev, &dev_attr_hw_ver); | |
550 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_eq); | |
551 | device_remove_file(&dev->ofdev.dev, &dev_attr_cur_eq); | |
552 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_cq); | |
553 | device_remove_file(&dev->ofdev.dev, &dev_attr_cur_cq); | |
554 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_qp); | |
555 | device_remove_file(&dev->ofdev.dev, &dev_attr_cur_qp); | |
556 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_mr); | |
557 | device_remove_file(&dev->ofdev.dev, &dev_attr_cur_mr); | |
558 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_mw); | |
559 | device_remove_file(&dev->ofdev.dev, &dev_attr_cur_mw); | |
560 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_pd); | |
561 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_ah); | |
562 | } | |
563 | ||
564 | static int __devinit ehca_probe(struct ibmebus_dev *dev, | |
565 | const struct of_device_id *id) | |
566 | { | |
567 | struct ehca_shca *shca; | |
568 | u64 *handle; | |
569 | struct ib_pd *ibpd; | |
570 | int ret; | |
571 | ||
572 | handle = (u64 *)get_property(dev->ofdev.node, "ibm,hca-handle", NULL); | |
573 | if (!handle) { | |
574 | ehca_gen_err("Cannot get eHCA handle for adapter: %s.", | |
575 | dev->ofdev.node->full_name); | |
576 | return -ENODEV; | |
577 | } | |
578 | ||
579 | if (!(*handle)) { | |
580 | ehca_gen_err("Wrong eHCA handle for adapter: %s.", | |
581 | dev->ofdev.node->full_name); | |
582 | return -ENODEV; | |
583 | } | |
584 | ||
585 | shca = (struct ehca_shca *)ib_alloc_device(sizeof(*shca)); | |
586 | if (!shca) { | |
587 | ehca_gen_err("Cannot allocate shca memory."); | |
588 | return -ENOMEM; | |
589 | } | |
c4ed790d | 590 | mutex_init(&shca->modify_mutex); |
fab97220 HS |
591 | |
592 | shca->ibmebus_dev = dev; | |
593 | shca->ipz_hca_handle.handle = *handle; | |
594 | dev->ofdev.dev.driver_data = shca; | |
595 | ||
596 | ret = ehca_sense_attributes(shca); | |
597 | if (ret < 0) { | |
598 | ehca_gen_err("Cannot sense eHCA attributes."); | |
599 | goto probe1; | |
600 | } | |
601 | ||
0f248d9c | 602 | ret = ehca_init_device(shca); |
fab97220 | 603 | if (ret) { |
0f248d9c | 604 | ehca_gen_err("Cannot init ehca device struct"); |
fab97220 HS |
605 | goto probe1; |
606 | } | |
607 | ||
608 | /* create event queues */ | |
609 | ret = ehca_create_eq(shca, &shca->eq, EHCA_EQ, 2048); | |
610 | if (ret) { | |
611 | ehca_err(&shca->ib_device, "Cannot create EQ."); | |
0f248d9c | 612 | goto probe1; |
fab97220 HS |
613 | } |
614 | ||
615 | ret = ehca_create_eq(shca, &shca->neq, EHCA_NEQ, 513); | |
616 | if (ret) { | |
617 | ehca_err(&shca->ib_device, "Cannot create NEQ."); | |
618 | goto probe3; | |
619 | } | |
620 | ||
621 | /* create internal protection domain */ | |
622 | ibpd = ehca_alloc_pd(&shca->ib_device, (void*)(-1), NULL); | |
623 | if (IS_ERR(ibpd)) { | |
624 | ehca_err(&shca->ib_device, "Cannot create internal PD."); | |
625 | ret = PTR_ERR(ibpd); | |
626 | goto probe4; | |
627 | } | |
628 | ||
629 | shca->pd = container_of(ibpd, struct ehca_pd, ib_pd); | |
630 | shca->pd->ib_pd.device = &shca->ib_device; | |
631 | ||
632 | /* create internal max MR */ | |
633 | ret = ehca_reg_internal_maxmr(shca, shca->pd, &shca->maxmr); | |
634 | ||
635 | if (ret) { | |
636 | ehca_err(&shca->ib_device, "Cannot create internal MR ret=%x", | |
637 | ret); | |
638 | goto probe5; | |
639 | } | |
640 | ||
0f248d9c HNN |
641 | ret = ib_register_device(&shca->ib_device); |
642 | if (ret) { | |
643 | ehca_err(&shca->ib_device, | |
644 | "ib_register_device() failed ret=%x", ret); | |
645 | goto probe6; | |
646 | } | |
647 | ||
fab97220 HS |
648 | /* create AQP1 for port 1 */ |
649 | if (ehca_open_aqp1 == 1) { | |
650 | shca->sport[0].port_state = IB_PORT_DOWN; | |
651 | ret = ehca_create_aqp1(shca, 1); | |
652 | if (ret) { | |
653 | ehca_err(&shca->ib_device, | |
654 | "Cannot create AQP1 for port 1."); | |
0f248d9c | 655 | goto probe7; |
fab97220 HS |
656 | } |
657 | } | |
658 | ||
659 | /* create AQP1 for port 2 */ | |
660 | if ((ehca_open_aqp1 == 1) && (shca->num_ports == 2)) { | |
661 | shca->sport[1].port_state = IB_PORT_DOWN; | |
662 | ret = ehca_create_aqp1(shca, 2); | |
663 | if (ret) { | |
664 | ehca_err(&shca->ib_device, | |
665 | "Cannot create AQP1 for port 2."); | |
0f248d9c | 666 | goto probe8; |
fab97220 HS |
667 | } |
668 | } | |
669 | ||
670 | ehca_create_device_sysfs(dev); | |
671 | ||
672 | spin_lock(&shca_list_lock); | |
673 | list_add(&shca->shca_list, &shca_list); | |
674 | spin_unlock(&shca_list_lock); | |
675 | ||
676 | return 0; | |
677 | ||
0f248d9c | 678 | probe8: |
fab97220 HS |
679 | ret = ehca_destroy_aqp1(&shca->sport[0]); |
680 | if (ret) | |
681 | ehca_err(&shca->ib_device, | |
682 | "Cannot destroy AQP1 for port 1. ret=%x", ret); | |
683 | ||
0f248d9c HNN |
684 | probe7: |
685 | ib_unregister_device(&shca->ib_device); | |
686 | ||
fab97220 HS |
687 | probe6: |
688 | ret = ehca_dereg_internal_maxmr(shca); | |
689 | if (ret) | |
690 | ehca_err(&shca->ib_device, | |
691 | "Cannot destroy internal MR. ret=%x", ret); | |
692 | ||
693 | probe5: | |
694 | ret = ehca_dealloc_pd(&shca->pd->ib_pd); | |
695 | if (ret) | |
696 | ehca_err(&shca->ib_device, | |
697 | "Cannot destroy internal PD. ret=%x", ret); | |
698 | ||
699 | probe4: | |
700 | ret = ehca_destroy_eq(shca, &shca->neq); | |
701 | if (ret) | |
702 | ehca_err(&shca->ib_device, | |
703 | "Cannot destroy NEQ. ret=%x", ret); | |
704 | ||
705 | probe3: | |
706 | ret = ehca_destroy_eq(shca, &shca->eq); | |
707 | if (ret) | |
708 | ehca_err(&shca->ib_device, | |
709 | "Cannot destroy EQ. ret=%x", ret); | |
710 | ||
fab97220 HS |
711 | probe1: |
712 | ib_dealloc_device(&shca->ib_device); | |
713 | ||
714 | return -EINVAL; | |
715 | } | |
716 | ||
717 | static int __devexit ehca_remove(struct ibmebus_dev *dev) | |
718 | { | |
719 | struct ehca_shca *shca = dev->ofdev.dev.driver_data; | |
720 | int ret; | |
721 | ||
722 | ehca_remove_device_sysfs(dev); | |
723 | ||
724 | if (ehca_open_aqp1 == 1) { | |
725 | int i; | |
726 | for (i = 0; i < shca->num_ports; i++) { | |
727 | ret = ehca_destroy_aqp1(&shca->sport[i]); | |
728 | if (ret) | |
729 | ehca_err(&shca->ib_device, | |
730 | "Cannot destroy AQP1 for port %x " | |
731 | "ret=%x", ret, i); | |
732 | } | |
733 | } | |
734 | ||
735 | ib_unregister_device(&shca->ib_device); | |
736 | ||
737 | ret = ehca_dereg_internal_maxmr(shca); | |
738 | if (ret) | |
739 | ehca_err(&shca->ib_device, | |
740 | "Cannot destroy internal MR. ret=%x", ret); | |
741 | ||
742 | ret = ehca_dealloc_pd(&shca->pd->ib_pd); | |
743 | if (ret) | |
744 | ehca_err(&shca->ib_device, | |
745 | "Cannot destroy internal PD. ret=%x", ret); | |
746 | ||
747 | ret = ehca_destroy_eq(shca, &shca->eq); | |
748 | if (ret) | |
749 | ehca_err(&shca->ib_device, "Cannot destroy EQ. ret=%x", ret); | |
750 | ||
751 | ret = ehca_destroy_eq(shca, &shca->neq); | |
752 | if (ret) | |
753 | ehca_err(&shca->ib_device, "Canot destroy NEQ. ret=%x", ret); | |
754 | ||
755 | ib_dealloc_device(&shca->ib_device); | |
756 | ||
757 | spin_lock(&shca_list_lock); | |
758 | list_del(&shca->shca_list); | |
759 | spin_unlock(&shca_list_lock); | |
760 | ||
761 | return ret; | |
762 | } | |
763 | ||
764 | static struct of_device_id ehca_device_table[] = | |
765 | { | |
766 | { | |
767 | .name = "lhca", | |
768 | .compatible = "IBM,lhca", | |
769 | }, | |
770 | {}, | |
771 | }; | |
772 | ||
773 | static struct ibmebus_driver ehca_driver = { | |
774 | .name = "ehca", | |
775 | .id_table = ehca_device_table, | |
776 | .probe = ehca_probe, | |
777 | .remove = ehca_remove, | |
778 | }; | |
779 | ||
780 | void ehca_poll_eqs(unsigned long data) | |
781 | { | |
782 | struct ehca_shca *shca; | |
783 | ||
784 | spin_lock(&shca_list_lock); | |
785 | list_for_each_entry(shca, &shca_list, shca_list) { | |
78d8d5f9 HNN |
786 | if (shca->eq.is_initialized) { |
787 | /* call deadman proc only if eq ptr does not change */ | |
788 | struct ehca_eq *eq = &shca->eq; | |
789 | int max = 3; | |
790 | volatile u64 q_ofs, q_ofs2; | |
791 | u64 flags; | |
792 | spin_lock_irqsave(&eq->spinlock, flags); | |
793 | q_ofs = eq->ipz_queue.current_q_offset; | |
794 | spin_unlock_irqrestore(&eq->spinlock, flags); | |
795 | do { | |
796 | spin_lock_irqsave(&eq->spinlock, flags); | |
797 | q_ofs2 = eq->ipz_queue.current_q_offset; | |
798 | spin_unlock_irqrestore(&eq->spinlock, flags); | |
799 | max--; | |
800 | } while (q_ofs == q_ofs2 && max > 0); | |
801 | if (q_ofs == q_ofs2) | |
802 | ehca_process_eq(shca, 0); | |
803 | } | |
fab97220 HS |
804 | } |
805 | mod_timer(&poll_eqs_timer, jiffies + HZ); | |
806 | spin_unlock(&shca_list_lock); | |
807 | } | |
808 | ||
809 | int __init ehca_module_init(void) | |
810 | { | |
811 | int ret; | |
812 | ||
813 | printk(KERN_INFO "eHCA Infiniband Device Driver " | |
31726798 | 814 | "(Rel.: SVNEHCA_0022)\n"); |
fab97220 HS |
815 | idr_init(&ehca_qp_idr); |
816 | idr_init(&ehca_cq_idr); | |
817 | spin_lock_init(&ehca_qp_idr_lock); | |
818 | spin_lock_init(&ehca_cq_idr_lock); | |
819 | ||
820 | INIT_LIST_HEAD(&shca_list); | |
821 | spin_lock_init(&shca_list_lock); | |
822 | ||
823 | if ((ret = ehca_create_comp_pool())) { | |
824 | ehca_gen_err("Cannot create comp pool."); | |
825 | return ret; | |
826 | } | |
827 | ||
828 | if ((ret = ehca_create_slab_caches())) { | |
829 | ehca_gen_err("Cannot create SLAB caches"); | |
830 | ret = -ENOMEM; | |
831 | goto module_init1; | |
832 | } | |
833 | ||
834 | if ((ret = ibmebus_register_driver(&ehca_driver))) { | |
835 | ehca_gen_err("Cannot register eHCA device driver"); | |
836 | ret = -EINVAL; | |
837 | goto module_init2; | |
838 | } | |
839 | ||
840 | ehca_create_driver_sysfs(&ehca_driver); | |
841 | ||
842 | if (ehca_poll_all_eqs != 1) { | |
843 | ehca_gen_err("WARNING!!!"); | |
844 | ehca_gen_err("It is possible to lose interrupts."); | |
845 | } else { | |
846 | init_timer(&poll_eqs_timer); | |
847 | poll_eqs_timer.function = ehca_poll_eqs; | |
848 | poll_eqs_timer.expires = jiffies + HZ; | |
849 | add_timer(&poll_eqs_timer); | |
850 | } | |
851 | ||
852 | return 0; | |
853 | ||
854 | module_init2: | |
855 | ehca_destroy_slab_caches(); | |
856 | ||
857 | module_init1: | |
858 | ehca_destroy_comp_pool(); | |
859 | return ret; | |
860 | }; | |
861 | ||
862 | void __exit ehca_module_exit(void) | |
863 | { | |
864 | if (ehca_poll_all_eqs == 1) | |
865 | del_timer_sync(&poll_eqs_timer); | |
866 | ||
867 | ehca_remove_driver_sysfs(&ehca_driver); | |
868 | ibmebus_unregister_driver(&ehca_driver); | |
869 | ||
870 | ehca_destroy_slab_caches(); | |
871 | ||
872 | ehca_destroy_comp_pool(); | |
873 | ||
874 | idr_destroy(&ehca_cq_idr); | |
875 | idr_destroy(&ehca_qp_idr); | |
876 | }; | |
877 | ||
878 | module_init(ehca_module_init); | |
879 | module_exit(ehca_module_exit); |