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"); | |
4e430dcb | 55 | MODULE_VERSION("SVNEHCA_0023"); |
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; | |
4e430dcb | 65 | int ehca_scaling_code = 0; |
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 | 96 | MODULE_PARM_DESC(scaling_code, |
b8a3ba55 | 97 | "set scaling code (0: disabled/default, 1: enabled)"); |
fab97220 | 98 | |
26ed687f JF |
99 | DEFINE_RWLOCK(ehca_qp_idr_lock); |
100 | DEFINE_RWLOCK(ehca_cq_idr_lock); | |
fab97220 HS |
101 | DEFINE_IDR(ehca_qp_idr); |
102 | DEFINE_IDR(ehca_cq_idr); | |
103 | ||
9844b71b JF |
104 | static LIST_HEAD(shca_list); /* list of all registered ehcas */ |
105 | static DEFINE_SPINLOCK(shca_list_lock); | |
fab97220 HS |
106 | |
107 | static struct timer_list poll_eqs_timer; | |
108 | ||
7e28db5d | 109 | #ifdef CONFIG_PPC_64K_PAGES |
2b94397a | 110 | static struct kmem_cache *ctblk_cache; |
7e28db5d | 111 | |
f2d91361 | 112 | void *ehca_alloc_fw_ctrlblock(gfp_t flags) |
7e28db5d | 113 | { |
f2d91361 | 114 | void *ret = kmem_cache_zalloc(ctblk_cache, flags); |
7e28db5d HNN |
115 | if (!ret) |
116 | ehca_gen_err("Out of memory for ctblk"); | |
117 | return ret; | |
118 | } | |
119 | ||
120 | void ehca_free_fw_ctrlblock(void *ptr) | |
121 | { | |
122 | if (ptr) | |
123 | kmem_cache_free(ctblk_cache, ptr); | |
124 | ||
125 | } | |
126 | #endif | |
127 | ||
fab97220 HS |
128 | static int ehca_create_slab_caches(void) |
129 | { | |
130 | int ret; | |
131 | ||
132 | ret = ehca_init_pd_cache(); | |
133 | if (ret) { | |
134 | ehca_gen_err("Cannot create PD SLAB cache."); | |
135 | return ret; | |
136 | } | |
137 | ||
138 | ret = ehca_init_cq_cache(); | |
139 | if (ret) { | |
140 | ehca_gen_err("Cannot create CQ SLAB cache."); | |
141 | goto create_slab_caches2; | |
142 | } | |
143 | ||
144 | ret = ehca_init_qp_cache(); | |
145 | if (ret) { | |
146 | ehca_gen_err("Cannot create QP SLAB cache."); | |
147 | goto create_slab_caches3; | |
148 | } | |
149 | ||
150 | ret = ehca_init_av_cache(); | |
151 | if (ret) { | |
152 | ehca_gen_err("Cannot create AV SLAB cache."); | |
153 | goto create_slab_caches4; | |
154 | } | |
155 | ||
156 | ret = ehca_init_mrmw_cache(); | |
157 | if (ret) { | |
158 | ehca_gen_err("Cannot create MR&MW SLAB cache."); | |
159 | goto create_slab_caches5; | |
160 | } | |
161 | ||
7e28db5d HNN |
162 | #ifdef CONFIG_PPC_64K_PAGES |
163 | ctblk_cache = kmem_cache_create("ehca_cache_ctblk", | |
164 | EHCA_PAGESIZE, H_CB_ALIGNMENT, | |
165 | SLAB_HWCACHE_ALIGN, | |
20c2df83 | 166 | NULL); |
7e28db5d HNN |
167 | if (!ctblk_cache) { |
168 | ehca_gen_err("Cannot create ctblk SLAB cache."); | |
169 | ehca_cleanup_mrmw_cache(); | |
170 | goto create_slab_caches5; | |
171 | } | |
172 | #endif | |
fab97220 HS |
173 | return 0; |
174 | ||
175 | create_slab_caches5: | |
176 | ehca_cleanup_av_cache(); | |
177 | ||
178 | create_slab_caches4: | |
179 | ehca_cleanup_qp_cache(); | |
180 | ||
181 | create_slab_caches3: | |
182 | ehca_cleanup_cq_cache(); | |
183 | ||
184 | create_slab_caches2: | |
185 | ehca_cleanup_pd_cache(); | |
186 | ||
187 | return ret; | |
188 | } | |
189 | ||
190 | static void ehca_destroy_slab_caches(void) | |
191 | { | |
192 | ehca_cleanup_mrmw_cache(); | |
193 | ehca_cleanup_av_cache(); | |
194 | ehca_cleanup_qp_cache(); | |
195 | ehca_cleanup_cq_cache(); | |
196 | ehca_cleanup_pd_cache(); | |
7e28db5d HNN |
197 | #ifdef CONFIG_PPC_64K_PAGES |
198 | if (ctblk_cache) | |
199 | kmem_cache_destroy(ctblk_cache); | |
200 | #endif | |
fab97220 HS |
201 | } |
202 | ||
2b94397a HNN |
203 | #define EHCA_HCAAVER EHCA_BMASK_IBM(32, 39) |
204 | #define EHCA_REVID EHCA_BMASK_IBM(40, 63) | |
fab97220 | 205 | |
91f13aa3 JF |
206 | static struct cap_descr { |
207 | u64 mask; | |
208 | char *descr; | |
209 | } hca_cap_descr[] = { | |
210 | { HCA_CAP_AH_PORT_NR_CHECK, "HCA_CAP_AH_PORT_NR_CHECK" }, | |
211 | { HCA_CAP_ATOMIC, "HCA_CAP_ATOMIC" }, | |
212 | { HCA_CAP_AUTO_PATH_MIG, "HCA_CAP_AUTO_PATH_MIG" }, | |
213 | { HCA_CAP_BAD_P_KEY_CTR, "HCA_CAP_BAD_P_KEY_CTR" }, | |
214 | { HCA_CAP_SQD_RTS_PORT_CHANGE, "HCA_CAP_SQD_RTS_PORT_CHANGE" }, | |
215 | { HCA_CAP_CUR_QP_STATE_MOD, "HCA_CAP_CUR_QP_STATE_MOD" }, | |
216 | { HCA_CAP_INIT_TYPE, "HCA_CAP_INIT_TYPE" }, | |
217 | { HCA_CAP_PORT_ACTIVE_EVENT, "HCA_CAP_PORT_ACTIVE_EVENT" }, | |
218 | { HCA_CAP_Q_KEY_VIOL_CTR, "HCA_CAP_Q_KEY_VIOL_CTR" }, | |
219 | { HCA_CAP_WQE_RESIZE, "HCA_CAP_WQE_RESIZE" }, | |
220 | { HCA_CAP_RAW_PACKET_MCAST, "HCA_CAP_RAW_PACKET_MCAST" }, | |
221 | { HCA_CAP_SHUTDOWN_PORT, "HCA_CAP_SHUTDOWN_PORT" }, | |
222 | { HCA_CAP_RC_LL_QP, "HCA_CAP_RC_LL_QP" }, | |
223 | { HCA_CAP_SRQ, "HCA_CAP_SRQ" }, | |
224 | { HCA_CAP_UD_LL_QP, "HCA_CAP_UD_LL_QP" }, | |
225 | { HCA_CAP_RESIZE_MR, "HCA_CAP_RESIZE_MR" }, | |
226 | { HCA_CAP_MINI_QP, "HCA_CAP_MINI_QP" }, | |
227 | }; | |
228 | ||
fab97220 HS |
229 | int ehca_sense_attributes(struct ehca_shca *shca) |
230 | { | |
91f13aa3 | 231 | int i, ret = 0; |
fab97220 HS |
232 | u64 h_ret; |
233 | struct hipz_query_hca *rblock; | |
91f13aa3 | 234 | struct hipz_query_port *port; |
fab97220 | 235 | |
f2d91361 | 236 | rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); |
fab97220 HS |
237 | if (!rblock) { |
238 | ehca_gen_err("Cannot allocate rblock memory."); | |
239 | return -ENOMEM; | |
240 | } | |
241 | ||
242 | h_ret = hipz_h_query_hca(shca->ipz_hca_handle, rblock); | |
243 | if (h_ret != H_SUCCESS) { | |
244 | ehca_gen_err("Cannot query device properties. h_ret=%lx", | |
245 | h_ret); | |
246 | ret = -EPERM; | |
91f13aa3 | 247 | goto sense_attributes1; |
fab97220 HS |
248 | } |
249 | ||
250 | if (ehca_nr_ports == 1) | |
251 | shca->num_ports = 1; | |
252 | else | |
253 | shca->num_ports = (u8)rblock->num_ports; | |
254 | ||
255 | ehca_gen_dbg(" ... found %x ports", rblock->num_ports); | |
256 | ||
257 | if (ehca_hw_level == 0) { | |
258 | u32 hcaaver; | |
259 | u32 revid; | |
260 | ||
261 | hcaaver = EHCA_BMASK_GET(EHCA_HCAAVER, rblock->hw_ver); | |
262 | revid = EHCA_BMASK_GET(EHCA_REVID, rblock->hw_ver); | |
263 | ||
264 | ehca_gen_dbg(" ... hardware version=%x:%x", hcaaver, revid); | |
265 | ||
fbb9318b JF |
266 | if (hcaaver == 1) { |
267 | if (revid <= 3) | |
268 | shca->hw_level = 0x10 | (revid + 1); | |
269 | else | |
270 | shca->hw_level = 0x14; | |
271 | } else if (hcaaver == 2) { | |
272 | if (revid == 0) | |
273 | shca->hw_level = 0x21; | |
274 | else if (revid == 0x10) | |
275 | shca->hw_level = 0x22; | |
276 | else if (revid == 0x20 || revid == 0x21) | |
277 | shca->hw_level = 0x23; | |
278 | } | |
279 | ||
280 | if (!shca->hw_level) { | |
91f13aa3 JF |
281 | ehca_gen_warn("unknown hardware version" |
282 | " - assuming default level"); | |
283 | shca->hw_level = 0x22; | |
284 | } | |
fbb9318b JF |
285 | } else |
286 | shca->hw_level = ehca_hw_level; | |
fab97220 HS |
287 | ehca_gen_dbg(" ... hardware level=%x", shca->hw_level); |
288 | ||
289 | shca->sport[0].rate = IB_RATE_30_GBPS; | |
290 | shca->sport[1].rate = IB_RATE_30_GBPS; | |
291 | ||
91f13aa3 JF |
292 | shca->hca_cap = rblock->hca_cap_indicators; |
293 | ehca_gen_dbg(" ... HCA capabilities:"); | |
294 | for (i = 0; i < ARRAY_SIZE(hca_cap_descr); i++) | |
295 | if (EHCA_BMASK_GET(hca_cap_descr[i].mask, shca->hca_cap)) | |
296 | ehca_gen_dbg(" %s", hca_cap_descr[i].descr); | |
297 | ||
2b94397a | 298 | port = (struct hipz_query_port *)rblock; |
91f13aa3 JF |
299 | h_ret = hipz_h_query_port(shca->ipz_hca_handle, 1, port); |
300 | if (h_ret != H_SUCCESS) { | |
301 | ehca_gen_err("Cannot query port properties. h_ret=%lx", | |
302 | h_ret); | |
303 | ret = -EPERM; | |
304 | goto sense_attributes1; | |
305 | } | |
306 | ||
307 | shca->max_mtu = port->max_mtu; | |
308 | ||
309 | sense_attributes1: | |
7e28db5d | 310 | ehca_free_fw_ctrlblock(rblock); |
fab97220 HS |
311 | return ret; |
312 | } | |
313 | ||
314 | static int init_node_guid(struct ehca_shca *shca) | |
315 | { | |
316 | int ret = 0; | |
317 | struct hipz_query_hca *rblock; | |
318 | ||
f2d91361 | 319 | rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); |
fab97220 HS |
320 | if (!rblock) { |
321 | ehca_err(&shca->ib_device, "Can't allocate rblock memory."); | |
322 | return -ENOMEM; | |
323 | } | |
324 | ||
325 | if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) { | |
326 | ehca_err(&shca->ib_device, "Can't query device properties"); | |
327 | ret = -EINVAL; | |
328 | goto init_node_guid1; | |
329 | } | |
330 | ||
331 | memcpy(&shca->ib_device.node_guid, &rblock->node_guid, sizeof(u64)); | |
332 | ||
333 | init_node_guid1: | |
7e28db5d | 334 | ehca_free_fw_ctrlblock(rblock); |
fab97220 HS |
335 | return ret; |
336 | } | |
337 | ||
0f248d9c | 338 | int ehca_init_device(struct ehca_shca *shca) |
fab97220 HS |
339 | { |
340 | int ret; | |
341 | ||
342 | ret = init_node_guid(shca); | |
343 | if (ret) | |
344 | return ret; | |
345 | ||
346 | strlcpy(shca->ib_device.name, "ehca%d", IB_DEVICE_NAME_MAX); | |
347 | shca->ib_device.owner = THIS_MODULE; | |
348 | ||
a6a12947 | 349 | shca->ib_device.uverbs_abi_ver = 7; |
fab97220 HS |
350 | shca->ib_device.uverbs_cmd_mask = |
351 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
352 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
353 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
354 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
355 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
356 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
357 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
358 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
359 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
360 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
361 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
362 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
363 | (1ull << IB_USER_VERBS_CMD_QUERY_QP) | | |
364 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
365 | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | | |
366 | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); | |
367 | ||
07ebafba | 368 | shca->ib_device.node_type = RDMA_NODE_IB_CA; |
fab97220 | 369 | shca->ib_device.phys_port_cnt = shca->num_ports; |
f4fd0b22 | 370 | shca->ib_device.num_comp_vectors = 1; |
fab97220 HS |
371 | shca->ib_device.dma_device = &shca->ibmebus_dev->ofdev.dev; |
372 | shca->ib_device.query_device = ehca_query_device; | |
373 | shca->ib_device.query_port = ehca_query_port; | |
374 | shca->ib_device.query_gid = ehca_query_gid; | |
375 | shca->ib_device.query_pkey = ehca_query_pkey; | |
376 | /* shca->in_device.modify_device = ehca_modify_device */ | |
377 | shca->ib_device.modify_port = ehca_modify_port; | |
378 | shca->ib_device.alloc_ucontext = ehca_alloc_ucontext; | |
379 | shca->ib_device.dealloc_ucontext = ehca_dealloc_ucontext; | |
380 | shca->ib_device.alloc_pd = ehca_alloc_pd; | |
381 | shca->ib_device.dealloc_pd = ehca_dealloc_pd; | |
382 | shca->ib_device.create_ah = ehca_create_ah; | |
383 | /* shca->ib_device.modify_ah = ehca_modify_ah; */ | |
384 | shca->ib_device.query_ah = ehca_query_ah; | |
385 | shca->ib_device.destroy_ah = ehca_destroy_ah; | |
386 | shca->ib_device.create_qp = ehca_create_qp; | |
387 | shca->ib_device.modify_qp = ehca_modify_qp; | |
388 | shca->ib_device.query_qp = ehca_query_qp; | |
389 | shca->ib_device.destroy_qp = ehca_destroy_qp; | |
390 | shca->ib_device.post_send = ehca_post_send; | |
391 | shca->ib_device.post_recv = ehca_post_recv; | |
392 | shca->ib_device.create_cq = ehca_create_cq; | |
393 | shca->ib_device.destroy_cq = ehca_destroy_cq; | |
394 | shca->ib_device.resize_cq = ehca_resize_cq; | |
395 | shca->ib_device.poll_cq = ehca_poll_cq; | |
396 | /* shca->ib_device.peek_cq = ehca_peek_cq; */ | |
397 | shca->ib_device.req_notify_cq = ehca_req_notify_cq; | |
398 | /* shca->ib_device.req_ncomp_notif = ehca_req_ncomp_notif; */ | |
399 | shca->ib_device.get_dma_mr = ehca_get_dma_mr; | |
400 | shca->ib_device.reg_phys_mr = ehca_reg_phys_mr; | |
401 | shca->ib_device.reg_user_mr = ehca_reg_user_mr; | |
402 | shca->ib_device.query_mr = ehca_query_mr; | |
403 | shca->ib_device.dereg_mr = ehca_dereg_mr; | |
404 | shca->ib_device.rereg_phys_mr = ehca_rereg_phys_mr; | |
405 | shca->ib_device.alloc_mw = ehca_alloc_mw; | |
406 | shca->ib_device.bind_mw = ehca_bind_mw; | |
407 | shca->ib_device.dealloc_mw = ehca_dealloc_mw; | |
408 | shca->ib_device.alloc_fmr = ehca_alloc_fmr; | |
409 | shca->ib_device.map_phys_fmr = ehca_map_phys_fmr; | |
410 | shca->ib_device.unmap_fmr = ehca_unmap_fmr; | |
411 | shca->ib_device.dealloc_fmr = ehca_dealloc_fmr; | |
412 | shca->ib_device.attach_mcast = ehca_attach_mcast; | |
413 | shca->ib_device.detach_mcast = ehca_detach_mcast; | |
414 | /* shca->ib_device.process_mad = ehca_process_mad; */ | |
415 | shca->ib_device.mmap = ehca_mmap; | |
416 | ||
a6a12947 JF |
417 | if (EHCA_BMASK_GET(HCA_CAP_SRQ, shca->hca_cap)) { |
418 | shca->ib_device.uverbs_cmd_mask |= | |
419 | (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | | |
420 | (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | | |
421 | (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | | |
422 | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); | |
423 | ||
424 | shca->ib_device.create_srq = ehca_create_srq; | |
425 | shca->ib_device.modify_srq = ehca_modify_srq; | |
426 | shca->ib_device.query_srq = ehca_query_srq; | |
427 | shca->ib_device.destroy_srq = ehca_destroy_srq; | |
428 | shca->ib_device.post_srq_recv = ehca_post_srq_recv; | |
429 | } | |
430 | ||
fab97220 HS |
431 | return ret; |
432 | } | |
433 | ||
434 | static int ehca_create_aqp1(struct ehca_shca *shca, u32 port) | |
435 | { | |
436 | struct ehca_sport *sport = &shca->sport[port - 1]; | |
437 | struct ib_cq *ibcq; | |
438 | struct ib_qp *ibqp; | |
439 | struct ib_qp_init_attr qp_init_attr; | |
440 | int ret; | |
441 | ||
442 | if (sport->ibcq_aqp1) { | |
443 | ehca_err(&shca->ib_device, "AQP1 CQ is already created."); | |
444 | return -EPERM; | |
445 | } | |
446 | ||
2b94397a | 447 | ibcq = ib_create_cq(&shca->ib_device, NULL, NULL, (void *)(-1), 10, 0); |
fab97220 HS |
448 | if (IS_ERR(ibcq)) { |
449 | ehca_err(&shca->ib_device, "Cannot create AQP1 CQ."); | |
450 | return PTR_ERR(ibcq); | |
451 | } | |
452 | sport->ibcq_aqp1 = ibcq; | |
453 | ||
454 | if (sport->ibqp_aqp1) { | |
455 | ehca_err(&shca->ib_device, "AQP1 QP is already created."); | |
456 | ret = -EPERM; | |
457 | goto create_aqp1; | |
458 | } | |
459 | ||
460 | memset(&qp_init_attr, 0, sizeof(struct ib_qp_init_attr)); | |
461 | qp_init_attr.send_cq = ibcq; | |
462 | qp_init_attr.recv_cq = ibcq; | |
463 | qp_init_attr.sq_sig_type = IB_SIGNAL_ALL_WR; | |
464 | qp_init_attr.cap.max_send_wr = 100; | |
465 | qp_init_attr.cap.max_recv_wr = 100; | |
466 | qp_init_attr.cap.max_send_sge = 2; | |
467 | qp_init_attr.cap.max_recv_sge = 1; | |
468 | qp_init_attr.qp_type = IB_QPT_GSI; | |
469 | qp_init_attr.port_num = port; | |
470 | qp_init_attr.qp_context = NULL; | |
471 | qp_init_attr.event_handler = NULL; | |
472 | qp_init_attr.srq = NULL; | |
473 | ||
474 | ibqp = ib_create_qp(&shca->pd->ib_pd, &qp_init_attr); | |
475 | if (IS_ERR(ibqp)) { | |
476 | ehca_err(&shca->ib_device, "Cannot create AQP1 QP."); | |
477 | ret = PTR_ERR(ibqp); | |
478 | goto create_aqp1; | |
479 | } | |
480 | sport->ibqp_aqp1 = ibqp; | |
481 | ||
482 | return 0; | |
483 | ||
484 | create_aqp1: | |
485 | ib_destroy_cq(sport->ibcq_aqp1); | |
486 | return ret; | |
487 | } | |
488 | ||
489 | static int ehca_destroy_aqp1(struct ehca_sport *sport) | |
490 | { | |
491 | int ret; | |
492 | ||
493 | ret = ib_destroy_qp(sport->ibqp_aqp1); | |
494 | if (ret) { | |
495 | ehca_gen_err("Cannot destroy AQP1 QP. ret=%x", ret); | |
496 | return ret; | |
497 | } | |
498 | ||
499 | ret = ib_destroy_cq(sport->ibcq_aqp1); | |
500 | if (ret) | |
501 | ehca_gen_err("Cannot destroy AQP1 CQ. ret=%x", ret); | |
502 | ||
503 | return ret; | |
504 | } | |
505 | ||
506 | static ssize_t ehca_show_debug_level(struct device_driver *ddp, char *buf) | |
507 | { | |
78d8d5f9 HNN |
508 | return snprintf(buf, PAGE_SIZE, "%d\n", |
509 | ehca_debug_level); | |
fab97220 HS |
510 | } |
511 | ||
512 | static ssize_t ehca_store_debug_level(struct device_driver *ddp, | |
513 | const char *buf, size_t count) | |
514 | { | |
515 | int value = (*buf) - '0'; | |
516 | if (value >= 0 && value <= 9) | |
517 | ehca_debug_level = value; | |
518 | return 1; | |
519 | } | |
520 | ||
521 | DRIVER_ATTR(debug_level, S_IRUSR | S_IWUSR, | |
522 | ehca_show_debug_level, ehca_store_debug_level); | |
523 | ||
bba9b601 JF |
524 | static struct attribute *ehca_drv_attrs[] = { |
525 | &driver_attr_debug_level.attr, | |
526 | NULL | |
527 | }; | |
fab97220 | 528 | |
bba9b601 JF |
529 | static struct attribute_group ehca_drv_attr_grp = { |
530 | .attrs = ehca_drv_attrs | |
531 | }; | |
fab97220 HS |
532 | |
533 | #define EHCA_RESOURCE_ATTR(name) \ | |
534 | static ssize_t ehca_show_##name(struct device *dev, \ | |
535 | struct device_attribute *attr, \ | |
536 | char *buf) \ | |
537 | { \ | |
538 | struct ehca_shca *shca; \ | |
539 | struct hipz_query_hca *rblock; \ | |
540 | int data; \ | |
541 | \ | |
542 | shca = dev->driver_data; \ | |
543 | \ | |
f2d91361 | 544 | rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL); \ |
fab97220 HS |
545 | if (!rblock) { \ |
546 | dev_err(dev, "Can't allocate rblock memory."); \ | |
547 | return 0; \ | |
548 | } \ | |
549 | \ | |
550 | if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) { \ | |
551 | dev_err(dev, "Can't query device properties"); \ | |
7e28db5d | 552 | ehca_free_fw_ctrlblock(rblock); \ |
fab97220 HS |
553 | return 0; \ |
554 | } \ | |
555 | \ | |
556 | data = rblock->name; \ | |
7e28db5d | 557 | ehca_free_fw_ctrlblock(rblock); \ |
fab97220 HS |
558 | \ |
559 | if ((strcmp(#name, "num_ports") == 0) && (ehca_nr_ports == 1)) \ | |
560 | return snprintf(buf, 256, "1\n"); \ | |
561 | else \ | |
562 | return snprintf(buf, 256, "%d\n", data); \ | |
563 | \ | |
564 | } \ | |
565 | static DEVICE_ATTR(name, S_IRUGO, ehca_show_##name, NULL); | |
566 | ||
567 | EHCA_RESOURCE_ATTR(num_ports); | |
568 | EHCA_RESOURCE_ATTR(hw_ver); | |
569 | EHCA_RESOURCE_ATTR(max_eq); | |
570 | EHCA_RESOURCE_ATTR(cur_eq); | |
571 | EHCA_RESOURCE_ATTR(max_cq); | |
572 | EHCA_RESOURCE_ATTR(cur_cq); | |
573 | EHCA_RESOURCE_ATTR(max_qp); | |
574 | EHCA_RESOURCE_ATTR(cur_qp); | |
575 | EHCA_RESOURCE_ATTR(max_mr); | |
576 | EHCA_RESOURCE_ATTR(cur_mr); | |
577 | EHCA_RESOURCE_ATTR(max_mw); | |
578 | EHCA_RESOURCE_ATTR(cur_mw); | |
579 | EHCA_RESOURCE_ATTR(max_pd); | |
580 | EHCA_RESOURCE_ATTR(max_ah); | |
581 | ||
582 | static ssize_t ehca_show_adapter_handle(struct device *dev, | |
583 | struct device_attribute *attr, | |
584 | char *buf) | |
585 | { | |
586 | struct ehca_shca *shca = dev->driver_data; | |
587 | ||
588 | return sprintf(buf, "%lx\n", shca->ipz_hca_handle.handle); | |
589 | ||
590 | } | |
591 | static DEVICE_ATTR(adapter_handle, S_IRUGO, ehca_show_adapter_handle, NULL); | |
592 | ||
bba9b601 JF |
593 | static struct attribute *ehca_dev_attrs[] = { |
594 | &dev_attr_adapter_handle.attr, | |
595 | &dev_attr_num_ports.attr, | |
596 | &dev_attr_hw_ver.attr, | |
597 | &dev_attr_max_eq.attr, | |
598 | &dev_attr_cur_eq.attr, | |
599 | &dev_attr_max_cq.attr, | |
600 | &dev_attr_cur_cq.attr, | |
601 | &dev_attr_max_qp.attr, | |
602 | &dev_attr_cur_qp.attr, | |
603 | &dev_attr_max_mr.attr, | |
604 | &dev_attr_cur_mr.attr, | |
605 | &dev_attr_max_mw.attr, | |
606 | &dev_attr_cur_mw.attr, | |
607 | &dev_attr_max_pd.attr, | |
608 | &dev_attr_max_ah.attr, | |
609 | NULL | |
610 | }; | |
fab97220 | 611 | |
bba9b601 JF |
612 | static struct attribute_group ehca_dev_attr_grp = { |
613 | .attrs = ehca_dev_attrs | |
614 | }; | |
fab97220 HS |
615 | |
616 | static int __devinit ehca_probe(struct ibmebus_dev *dev, | |
617 | const struct of_device_id *id) | |
618 | { | |
619 | struct ehca_shca *shca; | |
a7edd0e6 | 620 | const u64 *handle; |
fab97220 HS |
621 | struct ib_pd *ibpd; |
622 | int ret; | |
623 | ||
40cd3a45 | 624 | handle = of_get_property(dev->ofdev.node, "ibm,hca-handle", NULL); |
fab97220 HS |
625 | if (!handle) { |
626 | ehca_gen_err("Cannot get eHCA handle for adapter: %s.", | |
627 | dev->ofdev.node->full_name); | |
628 | return -ENODEV; | |
629 | } | |
630 | ||
631 | if (!(*handle)) { | |
632 | ehca_gen_err("Wrong eHCA handle for adapter: %s.", | |
633 | dev->ofdev.node->full_name); | |
634 | return -ENODEV; | |
635 | } | |
636 | ||
637 | shca = (struct ehca_shca *)ib_alloc_device(sizeof(*shca)); | |
638 | if (!shca) { | |
639 | ehca_gen_err("Cannot allocate shca memory."); | |
640 | return -ENOMEM; | |
641 | } | |
c4ed790d | 642 | mutex_init(&shca->modify_mutex); |
fab97220 HS |
643 | |
644 | shca->ibmebus_dev = dev; | |
645 | shca->ipz_hca_handle.handle = *handle; | |
646 | dev->ofdev.dev.driver_data = shca; | |
647 | ||
648 | ret = ehca_sense_attributes(shca); | |
649 | if (ret < 0) { | |
650 | ehca_gen_err("Cannot sense eHCA attributes."); | |
651 | goto probe1; | |
652 | } | |
653 | ||
0f248d9c | 654 | ret = ehca_init_device(shca); |
fab97220 | 655 | if (ret) { |
0f248d9c | 656 | ehca_gen_err("Cannot init ehca device struct"); |
fab97220 HS |
657 | goto probe1; |
658 | } | |
659 | ||
660 | /* create event queues */ | |
661 | ret = ehca_create_eq(shca, &shca->eq, EHCA_EQ, 2048); | |
662 | if (ret) { | |
663 | ehca_err(&shca->ib_device, "Cannot create EQ."); | |
0f248d9c | 664 | goto probe1; |
fab97220 HS |
665 | } |
666 | ||
667 | ret = ehca_create_eq(shca, &shca->neq, EHCA_NEQ, 513); | |
668 | if (ret) { | |
669 | ehca_err(&shca->ib_device, "Cannot create NEQ."); | |
670 | goto probe3; | |
671 | } | |
672 | ||
673 | /* create internal protection domain */ | |
2b94397a | 674 | ibpd = ehca_alloc_pd(&shca->ib_device, (void *)(-1), NULL); |
fab97220 HS |
675 | if (IS_ERR(ibpd)) { |
676 | ehca_err(&shca->ib_device, "Cannot create internal PD."); | |
677 | ret = PTR_ERR(ibpd); | |
678 | goto probe4; | |
679 | } | |
680 | ||
681 | shca->pd = container_of(ibpd, struct ehca_pd, ib_pd); | |
682 | shca->pd->ib_pd.device = &shca->ib_device; | |
683 | ||
684 | /* create internal max MR */ | |
685 | ret = ehca_reg_internal_maxmr(shca, shca->pd, &shca->maxmr); | |
686 | ||
687 | if (ret) { | |
688 | ehca_err(&shca->ib_device, "Cannot create internal MR ret=%x", | |
689 | ret); | |
690 | goto probe5; | |
691 | } | |
692 | ||
0f248d9c HNN |
693 | ret = ib_register_device(&shca->ib_device); |
694 | if (ret) { | |
695 | ehca_err(&shca->ib_device, | |
696 | "ib_register_device() failed ret=%x", ret); | |
697 | goto probe6; | |
698 | } | |
699 | ||
fab97220 HS |
700 | /* create AQP1 for port 1 */ |
701 | if (ehca_open_aqp1 == 1) { | |
702 | shca->sport[0].port_state = IB_PORT_DOWN; | |
703 | ret = ehca_create_aqp1(shca, 1); | |
704 | if (ret) { | |
705 | ehca_err(&shca->ib_device, | |
706 | "Cannot create AQP1 for port 1."); | |
0f248d9c | 707 | goto probe7; |
fab97220 HS |
708 | } |
709 | } | |
710 | ||
711 | /* create AQP1 for port 2 */ | |
712 | if ((ehca_open_aqp1 == 1) && (shca->num_ports == 2)) { | |
713 | shca->sport[1].port_state = IB_PORT_DOWN; | |
714 | ret = ehca_create_aqp1(shca, 2); | |
715 | if (ret) { | |
716 | ehca_err(&shca->ib_device, | |
717 | "Cannot create AQP1 for port 2."); | |
0f248d9c | 718 | goto probe8; |
fab97220 HS |
719 | } |
720 | } | |
721 | ||
bba9b601 JF |
722 | ret = sysfs_create_group(&dev->ofdev.dev.kobj, &ehca_dev_attr_grp); |
723 | if (ret) /* only complain; we can live without attributes */ | |
724 | ehca_err(&shca->ib_device, | |
725 | "Cannot create device attributes ret=%d", ret); | |
fab97220 HS |
726 | |
727 | spin_lock(&shca_list_lock); | |
728 | list_add(&shca->shca_list, &shca_list); | |
729 | spin_unlock(&shca_list_lock); | |
730 | ||
731 | return 0; | |
732 | ||
0f248d9c | 733 | probe8: |
fab97220 HS |
734 | ret = ehca_destroy_aqp1(&shca->sport[0]); |
735 | if (ret) | |
736 | ehca_err(&shca->ib_device, | |
737 | "Cannot destroy AQP1 for port 1. ret=%x", ret); | |
738 | ||
0f248d9c HNN |
739 | probe7: |
740 | ib_unregister_device(&shca->ib_device); | |
741 | ||
fab97220 HS |
742 | probe6: |
743 | ret = ehca_dereg_internal_maxmr(shca); | |
744 | if (ret) | |
745 | ehca_err(&shca->ib_device, | |
746 | "Cannot destroy internal MR. ret=%x", ret); | |
747 | ||
748 | probe5: | |
749 | ret = ehca_dealloc_pd(&shca->pd->ib_pd); | |
750 | if (ret) | |
751 | ehca_err(&shca->ib_device, | |
752 | "Cannot destroy internal PD. ret=%x", ret); | |
753 | ||
754 | probe4: | |
755 | ret = ehca_destroy_eq(shca, &shca->neq); | |
756 | if (ret) | |
757 | ehca_err(&shca->ib_device, | |
758 | "Cannot destroy NEQ. ret=%x", ret); | |
759 | ||
760 | probe3: | |
761 | ret = ehca_destroy_eq(shca, &shca->eq); | |
762 | if (ret) | |
763 | ehca_err(&shca->ib_device, | |
764 | "Cannot destroy EQ. ret=%x", ret); | |
765 | ||
fab97220 HS |
766 | probe1: |
767 | ib_dealloc_device(&shca->ib_device); | |
768 | ||
769 | return -EINVAL; | |
770 | } | |
771 | ||
772 | static int __devexit ehca_remove(struct ibmebus_dev *dev) | |
773 | { | |
774 | struct ehca_shca *shca = dev->ofdev.dev.driver_data; | |
775 | int ret; | |
776 | ||
bba9b601 | 777 | sysfs_remove_group(&dev->ofdev.dev.kobj, &ehca_dev_attr_grp); |
fab97220 HS |
778 | |
779 | if (ehca_open_aqp1 == 1) { | |
780 | int i; | |
781 | for (i = 0; i < shca->num_ports; i++) { | |
782 | ret = ehca_destroy_aqp1(&shca->sport[i]); | |
783 | if (ret) | |
784 | ehca_err(&shca->ib_device, | |
785 | "Cannot destroy AQP1 for port %x " | |
786 | "ret=%x", ret, i); | |
787 | } | |
788 | } | |
789 | ||
790 | ib_unregister_device(&shca->ib_device); | |
791 | ||
792 | ret = ehca_dereg_internal_maxmr(shca); | |
793 | if (ret) | |
794 | ehca_err(&shca->ib_device, | |
795 | "Cannot destroy internal MR. ret=%x", ret); | |
796 | ||
797 | ret = ehca_dealloc_pd(&shca->pd->ib_pd); | |
798 | if (ret) | |
799 | ehca_err(&shca->ib_device, | |
800 | "Cannot destroy internal PD. ret=%x", ret); | |
801 | ||
802 | ret = ehca_destroy_eq(shca, &shca->eq); | |
803 | if (ret) | |
804 | ehca_err(&shca->ib_device, "Cannot destroy EQ. ret=%x", ret); | |
805 | ||
806 | ret = ehca_destroy_eq(shca, &shca->neq); | |
807 | if (ret) | |
808 | ehca_err(&shca->ib_device, "Canot destroy NEQ. ret=%x", ret); | |
809 | ||
810 | ib_dealloc_device(&shca->ib_device); | |
811 | ||
812 | spin_lock(&shca_list_lock); | |
813 | list_del(&shca->shca_list); | |
814 | spin_unlock(&shca_list_lock); | |
815 | ||
816 | return ret; | |
817 | } | |
818 | ||
819 | static struct of_device_id ehca_device_table[] = | |
820 | { | |
821 | { | |
822 | .name = "lhca", | |
823 | .compatible = "IBM,lhca", | |
824 | }, | |
825 | {}, | |
826 | }; | |
827 | ||
828 | static struct ibmebus_driver ehca_driver = { | |
829 | .name = "ehca", | |
830 | .id_table = ehca_device_table, | |
831 | .probe = ehca_probe, | |
832 | .remove = ehca_remove, | |
833 | }; | |
834 | ||
835 | void ehca_poll_eqs(unsigned long data) | |
836 | { | |
837 | struct ehca_shca *shca; | |
838 | ||
839 | spin_lock(&shca_list_lock); | |
840 | list_for_each_entry(shca, &shca_list, shca_list) { | |
78d8d5f9 HNN |
841 | if (shca->eq.is_initialized) { |
842 | /* call deadman proc only if eq ptr does not change */ | |
843 | struct ehca_eq *eq = &shca->eq; | |
844 | int max = 3; | |
845 | volatile u64 q_ofs, q_ofs2; | |
846 | u64 flags; | |
847 | spin_lock_irqsave(&eq->spinlock, flags); | |
848 | q_ofs = eq->ipz_queue.current_q_offset; | |
849 | spin_unlock_irqrestore(&eq->spinlock, flags); | |
850 | do { | |
851 | spin_lock_irqsave(&eq->spinlock, flags); | |
852 | q_ofs2 = eq->ipz_queue.current_q_offset; | |
853 | spin_unlock_irqrestore(&eq->spinlock, flags); | |
854 | max--; | |
855 | } while (q_ofs == q_ofs2 && max > 0); | |
856 | if (q_ofs == q_ofs2) | |
857 | ehca_process_eq(shca, 0); | |
858 | } | |
fab97220 HS |
859 | } |
860 | mod_timer(&poll_eqs_timer, jiffies + HZ); | |
861 | spin_unlock(&shca_list_lock); | |
862 | } | |
863 | ||
864 | int __init ehca_module_init(void) | |
865 | { | |
866 | int ret; | |
867 | ||
868 | printk(KERN_INFO "eHCA Infiniband Device Driver " | |
4e430dcb | 869 | "(Rel.: SVNEHCA_0023)\n"); |
fab97220 | 870 | |
2b94397a HNN |
871 | ret = ehca_create_comp_pool(); |
872 | if (ret) { | |
fab97220 HS |
873 | ehca_gen_err("Cannot create comp pool."); |
874 | return ret; | |
875 | } | |
876 | ||
2b94397a HNN |
877 | ret = ehca_create_slab_caches(); |
878 | if (ret) { | |
fab97220 HS |
879 | ehca_gen_err("Cannot create SLAB caches"); |
880 | ret = -ENOMEM; | |
881 | goto module_init1; | |
882 | } | |
883 | ||
2b94397a HNN |
884 | ret = ibmebus_register_driver(&ehca_driver); |
885 | if (ret) { | |
fab97220 HS |
886 | ehca_gen_err("Cannot register eHCA device driver"); |
887 | ret = -EINVAL; | |
888 | goto module_init2; | |
889 | } | |
890 | ||
bba9b601 JF |
891 | ret = sysfs_create_group(&ehca_driver.driver.kobj, &ehca_drv_attr_grp); |
892 | if (ret) /* only complain; we can live without attributes */ | |
893 | ehca_gen_err("Cannot create driver attributes ret=%d", ret); | |
fab97220 HS |
894 | |
895 | if (ehca_poll_all_eqs != 1) { | |
896 | ehca_gen_err("WARNING!!!"); | |
897 | ehca_gen_err("It is possible to lose interrupts."); | |
898 | } else { | |
899 | init_timer(&poll_eqs_timer); | |
900 | poll_eqs_timer.function = ehca_poll_eqs; | |
901 | poll_eqs_timer.expires = jiffies + HZ; | |
902 | add_timer(&poll_eqs_timer); | |
903 | } | |
904 | ||
905 | return 0; | |
906 | ||
907 | module_init2: | |
908 | ehca_destroy_slab_caches(); | |
909 | ||
910 | module_init1: | |
911 | ehca_destroy_comp_pool(); | |
912 | return ret; | |
913 | }; | |
914 | ||
915 | void __exit ehca_module_exit(void) | |
916 | { | |
917 | if (ehca_poll_all_eqs == 1) | |
918 | del_timer_sync(&poll_eqs_timer); | |
919 | ||
bba9b601 | 920 | sysfs_remove_group(&ehca_driver.driver.kobj, &ehca_drv_attr_grp); |
fab97220 HS |
921 | ibmebus_unregister_driver(&ehca_driver); |
922 | ||
923 | ehca_destroy_slab_caches(); | |
924 | ||
925 | ehca_destroy_comp_pool(); | |
926 | ||
927 | idr_destroy(&ehca_cq_idr); | |
928 | idr_destroy(&ehca_qp_idr); | |
929 | }; | |
930 | ||
931 | module_init(ehca_module_init); | |
932 | module_exit(ehca_module_exit); |