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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"); | |
2771e9ed | 55 | MODULE_VERSION("SVNEHCA_0019"); |
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; | |
65 | ||
66 | module_param_named(open_aqp1, ehca_open_aqp1, int, 0); | |
67 | module_param_named(debug_level, ehca_debug_level, int, 0); | |
68 | module_param_named(hw_level, ehca_hw_level, int, 0); | |
69 | module_param_named(nr_ports, ehca_nr_ports, int, 0); | |
70 | module_param_named(use_hp_mr, ehca_use_hp_mr, int, 0); | |
71 | module_param_named(port_act_time, ehca_port_act_time, int, 0); | |
72 | module_param_named(poll_all_eqs, ehca_poll_all_eqs, int, 0); | |
73 | module_param_named(static_rate, ehca_static_rate, int, 0); | |
74 | ||
75 | MODULE_PARM_DESC(open_aqp1, | |
76 | "AQP1 on startup (0: no (default), 1: yes)"); | |
77 | MODULE_PARM_DESC(debug_level, | |
78 | "debug level" | |
79 | " (0: no debug traces (default), 1: with debug traces)"); | |
80 | MODULE_PARM_DESC(hw_level, | |
81 | "hardware level" | |
82 | " (0: autosensing (default), 1: v. 0.20, 2: v. 0.21)"); | |
83 | MODULE_PARM_DESC(nr_ports, | |
84 | "number of connected ports (default: 2)"); | |
85 | MODULE_PARM_DESC(use_hp_mr, | |
86 | "high performance MRs (0: no (default), 1: yes)"); | |
87 | MODULE_PARM_DESC(port_act_time, | |
88 | "time to wait for port activation (default: 30 sec)"); | |
89 | MODULE_PARM_DESC(poll_all_eqs, | |
90 | "polls all event queues periodically" | |
91 | " (0: no, 1: yes (default))"); | |
92 | MODULE_PARM_DESC(static_rate, | |
93 | "set permanent static rate (default: disabled)"); | |
94 | ||
95 | spinlock_t ehca_qp_idr_lock; | |
96 | spinlock_t ehca_cq_idr_lock; | |
97 | DEFINE_IDR(ehca_qp_idr); | |
98 | DEFINE_IDR(ehca_cq_idr); | |
99 | ||
7e28db5d | 100 | |
fab97220 HS |
101 | static struct list_head shca_list; /* list of all registered ehcas */ |
102 | static spinlock_t shca_list_lock; | |
103 | ||
104 | static struct timer_list poll_eqs_timer; | |
105 | ||
7e28db5d HNN |
106 | #ifdef CONFIG_PPC_64K_PAGES |
107 | static struct kmem_cache *ctblk_cache = NULL; | |
108 | ||
f2d91361 | 109 | void *ehca_alloc_fw_ctrlblock(gfp_t flags) |
7e28db5d | 110 | { |
f2d91361 | 111 | void *ret = kmem_cache_zalloc(ctblk_cache, flags); |
7e28db5d HNN |
112 | if (!ret) |
113 | ehca_gen_err("Out of memory for ctblk"); | |
114 | return ret; | |
115 | } | |
116 | ||
117 | void ehca_free_fw_ctrlblock(void *ptr) | |
118 | { | |
119 | if (ptr) | |
120 | kmem_cache_free(ctblk_cache, ptr); | |
121 | ||
122 | } | |
123 | #endif | |
124 | ||
fab97220 HS |
125 | static int ehca_create_slab_caches(void) |
126 | { | |
127 | int ret; | |
128 | ||
129 | ret = ehca_init_pd_cache(); | |
130 | if (ret) { | |
131 | ehca_gen_err("Cannot create PD SLAB cache."); | |
132 | return ret; | |
133 | } | |
134 | ||
135 | ret = ehca_init_cq_cache(); | |
136 | if (ret) { | |
137 | ehca_gen_err("Cannot create CQ SLAB cache."); | |
138 | goto create_slab_caches2; | |
139 | } | |
140 | ||
141 | ret = ehca_init_qp_cache(); | |
142 | if (ret) { | |
143 | ehca_gen_err("Cannot create QP SLAB cache."); | |
144 | goto create_slab_caches3; | |
145 | } | |
146 | ||
147 | ret = ehca_init_av_cache(); | |
148 | if (ret) { | |
149 | ehca_gen_err("Cannot create AV SLAB cache."); | |
150 | goto create_slab_caches4; | |
151 | } | |
152 | ||
153 | ret = ehca_init_mrmw_cache(); | |
154 | if (ret) { | |
155 | ehca_gen_err("Cannot create MR&MW SLAB cache."); | |
156 | goto create_slab_caches5; | |
157 | } | |
158 | ||
7e28db5d HNN |
159 | #ifdef CONFIG_PPC_64K_PAGES |
160 | ctblk_cache = kmem_cache_create("ehca_cache_ctblk", | |
161 | EHCA_PAGESIZE, H_CB_ALIGNMENT, | |
162 | SLAB_HWCACHE_ALIGN, | |
163 | NULL, NULL); | |
164 | if (!ctblk_cache) { | |
165 | ehca_gen_err("Cannot create ctblk SLAB cache."); | |
166 | ehca_cleanup_mrmw_cache(); | |
167 | goto create_slab_caches5; | |
168 | } | |
169 | #endif | |
fab97220 HS |
170 | return 0; |
171 | ||
172 | create_slab_caches5: | |
173 | ehca_cleanup_av_cache(); | |
174 | ||
175 | create_slab_caches4: | |
176 | ehca_cleanup_qp_cache(); | |
177 | ||
178 | create_slab_caches3: | |
179 | ehca_cleanup_cq_cache(); | |
180 | ||
181 | create_slab_caches2: | |
182 | ehca_cleanup_pd_cache(); | |
183 | ||
184 | return ret; | |
185 | } | |
186 | ||
187 | static void ehca_destroy_slab_caches(void) | |
188 | { | |
189 | ehca_cleanup_mrmw_cache(); | |
190 | ehca_cleanup_av_cache(); | |
191 | ehca_cleanup_qp_cache(); | |
192 | ehca_cleanup_cq_cache(); | |
193 | ehca_cleanup_pd_cache(); | |
7e28db5d HNN |
194 | #ifdef CONFIG_PPC_64K_PAGES |
195 | if (ctblk_cache) | |
196 | kmem_cache_destroy(ctblk_cache); | |
197 | #endif | |
fab97220 HS |
198 | } |
199 | ||
200 | #define EHCA_HCAAVER EHCA_BMASK_IBM(32,39) | |
201 | #define EHCA_REVID EHCA_BMASK_IBM(40,63) | |
202 | ||
203 | int ehca_sense_attributes(struct ehca_shca *shca) | |
204 | { | |
205 | int ret = 0; | |
206 | u64 h_ret; | |
207 | struct hipz_query_hca *rblock; | |
208 | ||
f2d91361 | 209 | rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); |
fab97220 HS |
210 | if (!rblock) { |
211 | ehca_gen_err("Cannot allocate rblock memory."); | |
212 | return -ENOMEM; | |
213 | } | |
214 | ||
215 | h_ret = hipz_h_query_hca(shca->ipz_hca_handle, rblock); | |
216 | if (h_ret != H_SUCCESS) { | |
217 | ehca_gen_err("Cannot query device properties. h_ret=%lx", | |
218 | h_ret); | |
219 | ret = -EPERM; | |
220 | goto num_ports1; | |
221 | } | |
222 | ||
223 | if (ehca_nr_ports == 1) | |
224 | shca->num_ports = 1; | |
225 | else | |
226 | shca->num_ports = (u8)rblock->num_ports; | |
227 | ||
228 | ehca_gen_dbg(" ... found %x ports", rblock->num_ports); | |
229 | ||
230 | if (ehca_hw_level == 0) { | |
231 | u32 hcaaver; | |
232 | u32 revid; | |
233 | ||
234 | hcaaver = EHCA_BMASK_GET(EHCA_HCAAVER, rblock->hw_ver); | |
235 | revid = EHCA_BMASK_GET(EHCA_REVID, rblock->hw_ver); | |
236 | ||
237 | ehca_gen_dbg(" ... hardware version=%x:%x", hcaaver, revid); | |
238 | ||
239 | if ((hcaaver == 1) && (revid == 0)) | |
240 | shca->hw_level = 0; | |
241 | else if ((hcaaver == 1) && (revid == 1)) | |
242 | shca->hw_level = 1; | |
243 | else if ((hcaaver == 1) && (revid == 2)) | |
244 | shca->hw_level = 2; | |
245 | } | |
246 | ehca_gen_dbg(" ... hardware level=%x", shca->hw_level); | |
247 | ||
248 | shca->sport[0].rate = IB_RATE_30_GBPS; | |
249 | shca->sport[1].rate = IB_RATE_30_GBPS; | |
250 | ||
251 | num_ports1: | |
7e28db5d | 252 | ehca_free_fw_ctrlblock(rblock); |
fab97220 HS |
253 | return ret; |
254 | } | |
255 | ||
256 | static int init_node_guid(struct ehca_shca *shca) | |
257 | { | |
258 | int ret = 0; | |
259 | struct hipz_query_hca *rblock; | |
260 | ||
f2d91361 | 261 | rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); |
fab97220 HS |
262 | if (!rblock) { |
263 | ehca_err(&shca->ib_device, "Can't allocate rblock memory."); | |
264 | return -ENOMEM; | |
265 | } | |
266 | ||
267 | if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) { | |
268 | ehca_err(&shca->ib_device, "Can't query device properties"); | |
269 | ret = -EINVAL; | |
270 | goto init_node_guid1; | |
271 | } | |
272 | ||
273 | memcpy(&shca->ib_device.node_guid, &rblock->node_guid, sizeof(u64)); | |
274 | ||
275 | init_node_guid1: | |
7e28db5d | 276 | ehca_free_fw_ctrlblock(rblock); |
fab97220 HS |
277 | return ret; |
278 | } | |
279 | ||
0f248d9c | 280 | int ehca_init_device(struct ehca_shca *shca) |
fab97220 HS |
281 | { |
282 | int ret; | |
283 | ||
284 | ret = init_node_guid(shca); | |
285 | if (ret) | |
286 | return ret; | |
287 | ||
288 | strlcpy(shca->ib_device.name, "ehca%d", IB_DEVICE_NAME_MAX); | |
289 | shca->ib_device.owner = THIS_MODULE; | |
290 | ||
291 | shca->ib_device.uverbs_abi_ver = 5; | |
292 | shca->ib_device.uverbs_cmd_mask = | |
293 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
294 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
295 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
296 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
297 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
298 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
299 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
300 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
301 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
302 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
303 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
304 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
305 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | | |
306 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
307 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
308 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); | |
309 | ||
07ebafba | 310 | shca->ib_device.node_type = RDMA_NODE_IB_CA; |
fab97220 HS |
311 | shca->ib_device.phys_port_cnt = shca->num_ports; |
312 | shca->ib_device.dma_device = &shca->ibmebus_dev->ofdev.dev; | |
313 | shca->ib_device.query_device = ehca_query_device; | |
314 | shca->ib_device.query_port = ehca_query_port; | |
315 | shca->ib_device.query_gid = ehca_query_gid; | |
316 | shca->ib_device.query_pkey = ehca_query_pkey; | |
317 | /* shca->in_device.modify_device = ehca_modify_device */ | |
318 | shca->ib_device.modify_port = ehca_modify_port; | |
319 | shca->ib_device.alloc_ucontext = ehca_alloc_ucontext; | |
320 | shca->ib_device.dealloc_ucontext = ehca_dealloc_ucontext; | |
321 | shca->ib_device.alloc_pd = ehca_alloc_pd; | |
322 | shca->ib_device.dealloc_pd = ehca_dealloc_pd; | |
323 | shca->ib_device.create_ah = ehca_create_ah; | |
324 | /* shca->ib_device.modify_ah = ehca_modify_ah; */ | |
325 | shca->ib_device.query_ah = ehca_query_ah; | |
326 | shca->ib_device.destroy_ah = ehca_destroy_ah; | |
327 | shca->ib_device.create_qp = ehca_create_qp; | |
328 | shca->ib_device.modify_qp = ehca_modify_qp; | |
329 | shca->ib_device.query_qp = ehca_query_qp; | |
330 | shca->ib_device.destroy_qp = ehca_destroy_qp; | |
331 | shca->ib_device.post_send = ehca_post_send; | |
332 | shca->ib_device.post_recv = ehca_post_recv; | |
333 | shca->ib_device.create_cq = ehca_create_cq; | |
334 | shca->ib_device.destroy_cq = ehca_destroy_cq; | |
335 | shca->ib_device.resize_cq = ehca_resize_cq; | |
336 | shca->ib_device.poll_cq = ehca_poll_cq; | |
337 | /* shca->ib_device.peek_cq = ehca_peek_cq; */ | |
338 | shca->ib_device.req_notify_cq = ehca_req_notify_cq; | |
339 | /* shca->ib_device.req_ncomp_notif = ehca_req_ncomp_notif; */ | |
340 | shca->ib_device.get_dma_mr = ehca_get_dma_mr; | |
341 | shca->ib_device.reg_phys_mr = ehca_reg_phys_mr; | |
342 | shca->ib_device.reg_user_mr = ehca_reg_user_mr; | |
343 | shca->ib_device.query_mr = ehca_query_mr; | |
344 | shca->ib_device.dereg_mr = ehca_dereg_mr; | |
345 | shca->ib_device.rereg_phys_mr = ehca_rereg_phys_mr; | |
346 | shca->ib_device.alloc_mw = ehca_alloc_mw; | |
347 | shca->ib_device.bind_mw = ehca_bind_mw; | |
348 | shca->ib_device.dealloc_mw = ehca_dealloc_mw; | |
349 | shca->ib_device.alloc_fmr = ehca_alloc_fmr; | |
350 | shca->ib_device.map_phys_fmr = ehca_map_phys_fmr; | |
351 | shca->ib_device.unmap_fmr = ehca_unmap_fmr; | |
352 | shca->ib_device.dealloc_fmr = ehca_dealloc_fmr; | |
353 | shca->ib_device.attach_mcast = ehca_attach_mcast; | |
354 | shca->ib_device.detach_mcast = ehca_detach_mcast; | |
355 | /* shca->ib_device.process_mad = ehca_process_mad; */ | |
356 | shca->ib_device.mmap = ehca_mmap; | |
357 | ||
fab97220 HS |
358 | return ret; |
359 | } | |
360 | ||
361 | static int ehca_create_aqp1(struct ehca_shca *shca, u32 port) | |
362 | { | |
363 | struct ehca_sport *sport = &shca->sport[port - 1]; | |
364 | struct ib_cq *ibcq; | |
365 | struct ib_qp *ibqp; | |
366 | struct ib_qp_init_attr qp_init_attr; | |
367 | int ret; | |
368 | ||
369 | if (sport->ibcq_aqp1) { | |
370 | ehca_err(&shca->ib_device, "AQP1 CQ is already created."); | |
371 | return -EPERM; | |
372 | } | |
373 | ||
374 | ibcq = ib_create_cq(&shca->ib_device, NULL, NULL, (void*)(-1), 10); | |
375 | if (IS_ERR(ibcq)) { | |
376 | ehca_err(&shca->ib_device, "Cannot create AQP1 CQ."); | |
377 | return PTR_ERR(ibcq); | |
378 | } | |
379 | sport->ibcq_aqp1 = ibcq; | |
380 | ||
381 | if (sport->ibqp_aqp1) { | |
382 | ehca_err(&shca->ib_device, "AQP1 QP is already created."); | |
383 | ret = -EPERM; | |
384 | goto create_aqp1; | |
385 | } | |
386 | ||
387 | memset(&qp_init_attr, 0, sizeof(struct ib_qp_init_attr)); | |
388 | qp_init_attr.send_cq = ibcq; | |
389 | qp_init_attr.recv_cq = ibcq; | |
390 | qp_init_attr.sq_sig_type = IB_SIGNAL_ALL_WR; | |
391 | qp_init_attr.cap.max_send_wr = 100; | |
392 | qp_init_attr.cap.max_recv_wr = 100; | |
393 | qp_init_attr.cap.max_send_sge = 2; | |
394 | qp_init_attr.cap.max_recv_sge = 1; | |
395 | qp_init_attr.qp_type = IB_QPT_GSI; | |
396 | qp_init_attr.port_num = port; | |
397 | qp_init_attr.qp_context = NULL; | |
398 | qp_init_attr.event_handler = NULL; | |
399 | qp_init_attr.srq = NULL; | |
400 | ||
401 | ibqp = ib_create_qp(&shca->pd->ib_pd, &qp_init_attr); | |
402 | if (IS_ERR(ibqp)) { | |
403 | ehca_err(&shca->ib_device, "Cannot create AQP1 QP."); | |
404 | ret = PTR_ERR(ibqp); | |
405 | goto create_aqp1; | |
406 | } | |
407 | sport->ibqp_aqp1 = ibqp; | |
408 | ||
409 | return 0; | |
410 | ||
411 | create_aqp1: | |
412 | ib_destroy_cq(sport->ibcq_aqp1); | |
413 | return ret; | |
414 | } | |
415 | ||
416 | static int ehca_destroy_aqp1(struct ehca_sport *sport) | |
417 | { | |
418 | int ret; | |
419 | ||
420 | ret = ib_destroy_qp(sport->ibqp_aqp1); | |
421 | if (ret) { | |
422 | ehca_gen_err("Cannot destroy AQP1 QP. ret=%x", ret); | |
423 | return ret; | |
424 | } | |
425 | ||
426 | ret = ib_destroy_cq(sport->ibcq_aqp1); | |
427 | if (ret) | |
428 | ehca_gen_err("Cannot destroy AQP1 CQ. ret=%x", ret); | |
429 | ||
430 | return ret; | |
431 | } | |
432 | ||
433 | static ssize_t ehca_show_debug_level(struct device_driver *ddp, char *buf) | |
434 | { | |
435 | return snprintf(buf, PAGE_SIZE, "%d\n", | |
436 | ehca_debug_level); | |
437 | } | |
438 | ||
439 | static ssize_t ehca_store_debug_level(struct device_driver *ddp, | |
440 | const char *buf, size_t count) | |
441 | { | |
442 | int value = (*buf) - '0'; | |
443 | if (value >= 0 && value <= 9) | |
444 | ehca_debug_level = value; | |
445 | return 1; | |
446 | } | |
447 | ||
448 | DRIVER_ATTR(debug_level, S_IRUSR | S_IWUSR, | |
449 | ehca_show_debug_level, ehca_store_debug_level); | |
450 | ||
451 | void ehca_create_driver_sysfs(struct ibmebus_driver *drv) | |
452 | { | |
453 | driver_create_file(&drv->driver, &driver_attr_debug_level); | |
454 | } | |
455 | ||
456 | void ehca_remove_driver_sysfs(struct ibmebus_driver *drv) | |
457 | { | |
458 | driver_remove_file(&drv->driver, &driver_attr_debug_level); | |
459 | } | |
460 | ||
461 | #define EHCA_RESOURCE_ATTR(name) \ | |
462 | static ssize_t ehca_show_##name(struct device *dev, \ | |
463 | struct device_attribute *attr, \ | |
464 | char *buf) \ | |
465 | { \ | |
466 | struct ehca_shca *shca; \ | |
467 | struct hipz_query_hca *rblock; \ | |
468 | int data; \ | |
469 | \ | |
470 | shca = dev->driver_data; \ | |
471 | \ | |
f2d91361 | 472 | rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); \ |
fab97220 HS |
473 | if (!rblock) { \ |
474 | dev_err(dev, "Can't allocate rblock memory."); \ | |
475 | return 0; \ | |
476 | } \ | |
477 | \ | |
478 | if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) { \ | |
479 | dev_err(dev, "Can't query device properties"); \ | |
7e28db5d | 480 | ehca_free_fw_ctrlblock(rblock); \ |
fab97220 HS |
481 | return 0; \ |
482 | } \ | |
483 | \ | |
484 | data = rblock->name; \ | |
7e28db5d | 485 | ehca_free_fw_ctrlblock(rblock); \ |
fab97220 HS |
486 | \ |
487 | if ((strcmp(#name, "num_ports") == 0) && (ehca_nr_ports == 1)) \ | |
488 | return snprintf(buf, 256, "1\n"); \ | |
489 | else \ | |
490 | return snprintf(buf, 256, "%d\n", data); \ | |
491 | \ | |
492 | } \ | |
493 | static DEVICE_ATTR(name, S_IRUGO, ehca_show_##name, NULL); | |
494 | ||
495 | EHCA_RESOURCE_ATTR(num_ports); | |
496 | EHCA_RESOURCE_ATTR(hw_ver); | |
497 | EHCA_RESOURCE_ATTR(max_eq); | |
498 | EHCA_RESOURCE_ATTR(cur_eq); | |
499 | EHCA_RESOURCE_ATTR(max_cq); | |
500 | EHCA_RESOURCE_ATTR(cur_cq); | |
501 | EHCA_RESOURCE_ATTR(max_qp); | |
502 | EHCA_RESOURCE_ATTR(cur_qp); | |
503 | EHCA_RESOURCE_ATTR(max_mr); | |
504 | EHCA_RESOURCE_ATTR(cur_mr); | |
505 | EHCA_RESOURCE_ATTR(max_mw); | |
506 | EHCA_RESOURCE_ATTR(cur_mw); | |
507 | EHCA_RESOURCE_ATTR(max_pd); | |
508 | EHCA_RESOURCE_ATTR(max_ah); | |
509 | ||
510 | static ssize_t ehca_show_adapter_handle(struct device *dev, | |
511 | struct device_attribute *attr, | |
512 | char *buf) | |
513 | { | |
514 | struct ehca_shca *shca = dev->driver_data; | |
515 | ||
516 | return sprintf(buf, "%lx\n", shca->ipz_hca_handle.handle); | |
517 | ||
518 | } | |
519 | static DEVICE_ATTR(adapter_handle, S_IRUGO, ehca_show_adapter_handle, NULL); | |
520 | ||
521 | ||
522 | void ehca_create_device_sysfs(struct ibmebus_dev *dev) | |
523 | { | |
524 | device_create_file(&dev->ofdev.dev, &dev_attr_adapter_handle); | |
525 | device_create_file(&dev->ofdev.dev, &dev_attr_num_ports); | |
526 | device_create_file(&dev->ofdev.dev, &dev_attr_hw_ver); | |
527 | device_create_file(&dev->ofdev.dev, &dev_attr_max_eq); | |
528 | device_create_file(&dev->ofdev.dev, &dev_attr_cur_eq); | |
529 | device_create_file(&dev->ofdev.dev, &dev_attr_max_cq); | |
530 | device_create_file(&dev->ofdev.dev, &dev_attr_cur_cq); | |
531 | device_create_file(&dev->ofdev.dev, &dev_attr_max_qp); | |
532 | device_create_file(&dev->ofdev.dev, &dev_attr_cur_qp); | |
533 | device_create_file(&dev->ofdev.dev, &dev_attr_max_mr); | |
534 | device_create_file(&dev->ofdev.dev, &dev_attr_cur_mr); | |
535 | device_create_file(&dev->ofdev.dev, &dev_attr_max_mw); | |
536 | device_create_file(&dev->ofdev.dev, &dev_attr_cur_mw); | |
537 | device_create_file(&dev->ofdev.dev, &dev_attr_max_pd); | |
538 | device_create_file(&dev->ofdev.dev, &dev_attr_max_ah); | |
539 | } | |
540 | ||
541 | void ehca_remove_device_sysfs(struct ibmebus_dev *dev) | |
542 | { | |
543 | device_remove_file(&dev->ofdev.dev, &dev_attr_adapter_handle); | |
544 | device_remove_file(&dev->ofdev.dev, &dev_attr_num_ports); | |
545 | device_remove_file(&dev->ofdev.dev, &dev_attr_hw_ver); | |
546 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_eq); | |
547 | device_remove_file(&dev->ofdev.dev, &dev_attr_cur_eq); | |
548 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_cq); | |
549 | device_remove_file(&dev->ofdev.dev, &dev_attr_cur_cq); | |
550 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_qp); | |
551 | device_remove_file(&dev->ofdev.dev, &dev_attr_cur_qp); | |
552 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_mr); | |
553 | device_remove_file(&dev->ofdev.dev, &dev_attr_cur_mr); | |
554 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_mw); | |
555 | device_remove_file(&dev->ofdev.dev, &dev_attr_cur_mw); | |
556 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_pd); | |
557 | device_remove_file(&dev->ofdev.dev, &dev_attr_max_ah); | |
558 | } | |
559 | ||
560 | static int __devinit ehca_probe(struct ibmebus_dev *dev, | |
561 | const struct of_device_id *id) | |
562 | { | |
563 | struct ehca_shca *shca; | |
564 | u64 *handle; | |
565 | struct ib_pd *ibpd; | |
566 | int ret; | |
567 | ||
568 | handle = (u64 *)get_property(dev->ofdev.node, "ibm,hca-handle", NULL); | |
569 | if (!handle) { | |
570 | ehca_gen_err("Cannot get eHCA handle for adapter: %s.", | |
571 | dev->ofdev.node->full_name); | |
572 | return -ENODEV; | |
573 | } | |
574 | ||
575 | if (!(*handle)) { | |
576 | ehca_gen_err("Wrong eHCA handle for adapter: %s.", | |
577 | dev->ofdev.node->full_name); | |
578 | return -ENODEV; | |
579 | } | |
580 | ||
581 | shca = (struct ehca_shca *)ib_alloc_device(sizeof(*shca)); | |
582 | if (!shca) { | |
583 | ehca_gen_err("Cannot allocate shca memory."); | |
584 | return -ENOMEM; | |
585 | } | |
586 | ||
587 | shca->ibmebus_dev = dev; | |
588 | shca->ipz_hca_handle.handle = *handle; | |
589 | dev->ofdev.dev.driver_data = shca; | |
590 | ||
591 | ret = ehca_sense_attributes(shca); | |
592 | if (ret < 0) { | |
593 | ehca_gen_err("Cannot sense eHCA attributes."); | |
594 | goto probe1; | |
595 | } | |
596 | ||
0f248d9c | 597 | ret = ehca_init_device(shca); |
fab97220 | 598 | if (ret) { |
0f248d9c | 599 | ehca_gen_err("Cannot init ehca device struct"); |
fab97220 HS |
600 | goto probe1; |
601 | } | |
602 | ||
603 | /* create event queues */ | |
604 | ret = ehca_create_eq(shca, &shca->eq, EHCA_EQ, 2048); | |
605 | if (ret) { | |
606 | ehca_err(&shca->ib_device, "Cannot create EQ."); | |
0f248d9c | 607 | goto probe1; |
fab97220 HS |
608 | } |
609 | ||
610 | ret = ehca_create_eq(shca, &shca->neq, EHCA_NEQ, 513); | |
611 | if (ret) { | |
612 | ehca_err(&shca->ib_device, "Cannot create NEQ."); | |
613 | goto probe3; | |
614 | } | |
615 | ||
616 | /* create internal protection domain */ | |
617 | ibpd = ehca_alloc_pd(&shca->ib_device, (void*)(-1), NULL); | |
618 | if (IS_ERR(ibpd)) { | |
619 | ehca_err(&shca->ib_device, "Cannot create internal PD."); | |
620 | ret = PTR_ERR(ibpd); | |
621 | goto probe4; | |
622 | } | |
623 | ||
624 | shca->pd = container_of(ibpd, struct ehca_pd, ib_pd); | |
625 | shca->pd->ib_pd.device = &shca->ib_device; | |
626 | ||
627 | /* create internal max MR */ | |
628 | ret = ehca_reg_internal_maxmr(shca, shca->pd, &shca->maxmr); | |
629 | ||
630 | if (ret) { | |
631 | ehca_err(&shca->ib_device, "Cannot create internal MR ret=%x", | |
632 | ret); | |
633 | goto probe5; | |
634 | } | |
635 | ||
0f248d9c HNN |
636 | ret = ib_register_device(&shca->ib_device); |
637 | if (ret) { | |
638 | ehca_err(&shca->ib_device, | |
639 | "ib_register_device() failed ret=%x", ret); | |
640 | goto probe6; | |
641 | } | |
642 | ||
fab97220 HS |
643 | /* create AQP1 for port 1 */ |
644 | if (ehca_open_aqp1 == 1) { | |
645 | shca->sport[0].port_state = IB_PORT_DOWN; | |
646 | ret = ehca_create_aqp1(shca, 1); | |
647 | if (ret) { | |
648 | ehca_err(&shca->ib_device, | |
649 | "Cannot create AQP1 for port 1."); | |
0f248d9c | 650 | goto probe7; |
fab97220 HS |
651 | } |
652 | } | |
653 | ||
654 | /* create AQP1 for port 2 */ | |
655 | if ((ehca_open_aqp1 == 1) && (shca->num_ports == 2)) { | |
656 | shca->sport[1].port_state = IB_PORT_DOWN; | |
657 | ret = ehca_create_aqp1(shca, 2); | |
658 | if (ret) { | |
659 | ehca_err(&shca->ib_device, | |
660 | "Cannot create AQP1 for port 2."); | |
0f248d9c | 661 | goto probe8; |
fab97220 HS |
662 | } |
663 | } | |
664 | ||
665 | ehca_create_device_sysfs(dev); | |
666 | ||
667 | spin_lock(&shca_list_lock); | |
668 | list_add(&shca->shca_list, &shca_list); | |
669 | spin_unlock(&shca_list_lock); | |
670 | ||
671 | return 0; | |
672 | ||
0f248d9c | 673 | probe8: |
fab97220 HS |
674 | ret = ehca_destroy_aqp1(&shca->sport[0]); |
675 | if (ret) | |
676 | ehca_err(&shca->ib_device, | |
677 | "Cannot destroy AQP1 for port 1. ret=%x", ret); | |
678 | ||
0f248d9c HNN |
679 | probe7: |
680 | ib_unregister_device(&shca->ib_device); | |
681 | ||
fab97220 HS |
682 | probe6: |
683 | ret = ehca_dereg_internal_maxmr(shca); | |
684 | if (ret) | |
685 | ehca_err(&shca->ib_device, | |
686 | "Cannot destroy internal MR. ret=%x", ret); | |
687 | ||
688 | probe5: | |
689 | ret = ehca_dealloc_pd(&shca->pd->ib_pd); | |
690 | if (ret) | |
691 | ehca_err(&shca->ib_device, | |
692 | "Cannot destroy internal PD. ret=%x", ret); | |
693 | ||
694 | probe4: | |
695 | ret = ehca_destroy_eq(shca, &shca->neq); | |
696 | if (ret) | |
697 | ehca_err(&shca->ib_device, | |
698 | "Cannot destroy NEQ. ret=%x", ret); | |
699 | ||
700 | probe3: | |
701 | ret = ehca_destroy_eq(shca, &shca->eq); | |
702 | if (ret) | |
703 | ehca_err(&shca->ib_device, | |
704 | "Cannot destroy EQ. ret=%x", ret); | |
705 | ||
fab97220 HS |
706 | probe1: |
707 | ib_dealloc_device(&shca->ib_device); | |
708 | ||
709 | return -EINVAL; | |
710 | } | |
711 | ||
712 | static int __devexit ehca_remove(struct ibmebus_dev *dev) | |
713 | { | |
714 | struct ehca_shca *shca = dev->ofdev.dev.driver_data; | |
715 | int ret; | |
716 | ||
717 | ehca_remove_device_sysfs(dev); | |
718 | ||
719 | if (ehca_open_aqp1 == 1) { | |
720 | int i; | |
721 | for (i = 0; i < shca->num_ports; i++) { | |
722 | ret = ehca_destroy_aqp1(&shca->sport[i]); | |
723 | if (ret) | |
724 | ehca_err(&shca->ib_device, | |
725 | "Cannot destroy AQP1 for port %x " | |
726 | "ret=%x", ret, i); | |
727 | } | |
728 | } | |
729 | ||
730 | ib_unregister_device(&shca->ib_device); | |
731 | ||
732 | ret = ehca_dereg_internal_maxmr(shca); | |
733 | if (ret) | |
734 | ehca_err(&shca->ib_device, | |
735 | "Cannot destroy internal MR. ret=%x", ret); | |
736 | ||
737 | ret = ehca_dealloc_pd(&shca->pd->ib_pd); | |
738 | if (ret) | |
739 | ehca_err(&shca->ib_device, | |
740 | "Cannot destroy internal PD. ret=%x", ret); | |
741 | ||
742 | ret = ehca_destroy_eq(shca, &shca->eq); | |
743 | if (ret) | |
744 | ehca_err(&shca->ib_device, "Cannot destroy EQ. ret=%x", ret); | |
745 | ||
746 | ret = ehca_destroy_eq(shca, &shca->neq); | |
747 | if (ret) | |
748 | ehca_err(&shca->ib_device, "Canot destroy NEQ. ret=%x", ret); | |
749 | ||
750 | ib_dealloc_device(&shca->ib_device); | |
751 | ||
752 | spin_lock(&shca_list_lock); | |
753 | list_del(&shca->shca_list); | |
754 | spin_unlock(&shca_list_lock); | |
755 | ||
756 | return ret; | |
757 | } | |
758 | ||
759 | static struct of_device_id ehca_device_table[] = | |
760 | { | |
761 | { | |
762 | .name = "lhca", | |
763 | .compatible = "IBM,lhca", | |
764 | }, | |
765 | {}, | |
766 | }; | |
767 | ||
768 | static struct ibmebus_driver ehca_driver = { | |
769 | .name = "ehca", | |
770 | .id_table = ehca_device_table, | |
771 | .probe = ehca_probe, | |
772 | .remove = ehca_remove, | |
773 | }; | |
774 | ||
775 | void ehca_poll_eqs(unsigned long data) | |
776 | { | |
777 | struct ehca_shca *shca; | |
778 | ||
779 | spin_lock(&shca_list_lock); | |
780 | list_for_each_entry(shca, &shca_list, shca_list) { | |
781 | if (shca->eq.is_initialized) | |
782 | ehca_tasklet_eq((unsigned long)(void*)shca); | |
783 | } | |
784 | mod_timer(&poll_eqs_timer, jiffies + HZ); | |
785 | spin_unlock(&shca_list_lock); | |
786 | } | |
787 | ||
788 | int __init ehca_module_init(void) | |
789 | { | |
790 | int ret; | |
791 | ||
792 | printk(KERN_INFO "eHCA Infiniband Device Driver " | |
2771e9ed | 793 | "(Rel.: SVNEHCA_0019)\n"); |
fab97220 HS |
794 | idr_init(&ehca_qp_idr); |
795 | idr_init(&ehca_cq_idr); | |
796 | spin_lock_init(&ehca_qp_idr_lock); | |
797 | spin_lock_init(&ehca_cq_idr_lock); | |
798 | ||
799 | INIT_LIST_HEAD(&shca_list); | |
800 | spin_lock_init(&shca_list_lock); | |
801 | ||
802 | if ((ret = ehca_create_comp_pool())) { | |
803 | ehca_gen_err("Cannot create comp pool."); | |
804 | return ret; | |
805 | } | |
806 | ||
807 | if ((ret = ehca_create_slab_caches())) { | |
808 | ehca_gen_err("Cannot create SLAB caches"); | |
809 | ret = -ENOMEM; | |
810 | goto module_init1; | |
811 | } | |
812 | ||
813 | if ((ret = ibmebus_register_driver(&ehca_driver))) { | |
814 | ehca_gen_err("Cannot register eHCA device driver"); | |
815 | ret = -EINVAL; | |
816 | goto module_init2; | |
817 | } | |
818 | ||
819 | ehca_create_driver_sysfs(&ehca_driver); | |
820 | ||
821 | if (ehca_poll_all_eqs != 1) { | |
822 | ehca_gen_err("WARNING!!!"); | |
823 | ehca_gen_err("It is possible to lose interrupts."); | |
824 | } else { | |
825 | init_timer(&poll_eqs_timer); | |
826 | poll_eqs_timer.function = ehca_poll_eqs; | |
827 | poll_eqs_timer.expires = jiffies + HZ; | |
828 | add_timer(&poll_eqs_timer); | |
829 | } | |
830 | ||
831 | return 0; | |
832 | ||
833 | module_init2: | |
834 | ehca_destroy_slab_caches(); | |
835 | ||
836 | module_init1: | |
837 | ehca_destroy_comp_pool(); | |
838 | return ret; | |
839 | }; | |
840 | ||
841 | void __exit ehca_module_exit(void) | |
842 | { | |
843 | if (ehca_poll_all_eqs == 1) | |
844 | del_timer_sync(&poll_eqs_timer); | |
845 | ||
846 | ehca_remove_driver_sysfs(&ehca_driver); | |
847 | ibmebus_unregister_driver(&ehca_driver); | |
848 | ||
849 | ehca_destroy_slab_caches(); | |
850 | ||
851 | ehca_destroy_comp_pool(); | |
852 | ||
853 | idr_destroy(&ehca_cq_idr); | |
854 | idr_destroy(&ehca_qp_idr); | |
855 | }; | |
856 | ||
857 | module_init(ehca_module_init); | |
858 | module_exit(ehca_module_exit); |