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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. | |
2a1d9b7f | 3 | * Copyright (c) 2005 Mellanox Technologies. All rights reserved. |
1da177e4 LT |
4 | * |
5 | * This software is available to you under a choice of one of two | |
6 | * licenses. You may choose to be licensed under the terms of the GNU | |
7 | * General Public License (GPL) Version 2, available from the file | |
8 | * COPYING in the main directory of this source tree, or the | |
9 | * OpenIB.org BSD license below: | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or | |
12 | * without modification, are permitted provided that the following | |
13 | * conditions are met: | |
14 | * | |
15 | * - Redistributions of source code must retain the above | |
16 | * copyright notice, this list of conditions and the following | |
17 | * disclaimer. | |
18 | * | |
19 | * - Redistributions in binary form must reproduce the above | |
20 | * copyright notice, this list of conditions and the following | |
21 | * disclaimer in the documentation and/or other materials | |
22 | * provided with the distribution. | |
23 | * | |
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
25 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
26 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
27 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
28 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
29 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
30 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
31 | * SOFTWARE. | |
1da177e4 LT |
32 | */ |
33 | ||
1da177e4 LT |
34 | #include <linux/errno.h> |
35 | #include <linux/interrupt.h> | |
36 | #include <linux/pci.h> | |
5a0e3ad6 | 37 | #include <linux/slab.h> |
1da177e4 LT |
38 | |
39 | #include "mthca_dev.h" | |
40 | #include "mthca_cmd.h" | |
41 | #include "mthca_config_reg.h" | |
42 | ||
43 | enum { | |
44 | MTHCA_NUM_ASYNC_EQE = 0x80, | |
45 | MTHCA_NUM_CMD_EQE = 0x80, | |
92898522 | 46 | MTHCA_NUM_SPARE_EQE = 0x80, |
1da177e4 LT |
47 | MTHCA_EQ_ENTRY_SIZE = 0x20 |
48 | }; | |
49 | ||
50 | /* | |
51 | * Must be packed because start is 64 bits but only aligned to 32 bits. | |
52 | */ | |
53 | struct mthca_eq_context { | |
97f52eb4 SH |
54 | __be32 flags; |
55 | __be64 start; | |
56 | __be32 logsize_usrpage; | |
57 | __be32 tavor_pd; /* reserved for Arbel */ | |
58 | u8 reserved1[3]; | |
59 | u8 intr; | |
60 | __be32 arbel_pd; /* lost_count for Tavor */ | |
61 | __be32 lkey; | |
62 | u32 reserved2[2]; | |
63 | __be32 consumer_index; | |
64 | __be32 producer_index; | |
65 | u32 reserved3[4]; | |
1da177e4 LT |
66 | } __attribute__((packed)); |
67 | ||
68 | #define MTHCA_EQ_STATUS_OK ( 0 << 28) | |
69 | #define MTHCA_EQ_STATUS_OVERFLOW ( 9 << 28) | |
70 | #define MTHCA_EQ_STATUS_WRITE_FAIL (10 << 28) | |
71 | #define MTHCA_EQ_OWNER_SW ( 0 << 24) | |
72 | #define MTHCA_EQ_OWNER_HW ( 1 << 24) | |
73 | #define MTHCA_EQ_FLAG_TR ( 1 << 18) | |
74 | #define MTHCA_EQ_FLAG_OI ( 1 << 17) | |
75 | #define MTHCA_EQ_STATE_ARMED ( 1 << 8) | |
76 | #define MTHCA_EQ_STATE_FIRED ( 2 << 8) | |
77 | #define MTHCA_EQ_STATE_ALWAYS_ARMED ( 3 << 8) | |
78 | #define MTHCA_EQ_STATE_ARBEL ( 8 << 8) | |
79 | ||
80 | enum { | |
81 | MTHCA_EVENT_TYPE_COMP = 0x00, | |
82 | MTHCA_EVENT_TYPE_PATH_MIG = 0x01, | |
83 | MTHCA_EVENT_TYPE_COMM_EST = 0x02, | |
84 | MTHCA_EVENT_TYPE_SQ_DRAINED = 0x03, | |
90f104da RD |
85 | MTHCA_EVENT_TYPE_SRQ_QP_LAST_WQE = 0x13, |
86 | MTHCA_EVENT_TYPE_SRQ_LIMIT = 0x14, | |
1da177e4 LT |
87 | MTHCA_EVENT_TYPE_CQ_ERROR = 0x04, |
88 | MTHCA_EVENT_TYPE_WQ_CATAS_ERROR = 0x05, | |
89 | MTHCA_EVENT_TYPE_EEC_CATAS_ERROR = 0x06, | |
90 | MTHCA_EVENT_TYPE_PATH_MIG_FAILED = 0x07, | |
91 | MTHCA_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10, | |
92 | MTHCA_EVENT_TYPE_WQ_ACCESS_ERROR = 0x11, | |
93 | MTHCA_EVENT_TYPE_SRQ_CATAS_ERROR = 0x12, | |
94 | MTHCA_EVENT_TYPE_LOCAL_CATAS_ERROR = 0x08, | |
95 | MTHCA_EVENT_TYPE_PORT_CHANGE = 0x09, | |
96 | MTHCA_EVENT_TYPE_EQ_OVERFLOW = 0x0f, | |
97 | MTHCA_EVENT_TYPE_ECC_DETECT = 0x0e, | |
98 | MTHCA_EVENT_TYPE_CMD = 0x0a | |
99 | }; | |
100 | ||
101 | #define MTHCA_ASYNC_EVENT_MASK ((1ULL << MTHCA_EVENT_TYPE_PATH_MIG) | \ | |
102 | (1ULL << MTHCA_EVENT_TYPE_COMM_EST) | \ | |
103 | (1ULL << MTHCA_EVENT_TYPE_SQ_DRAINED) | \ | |
104 | (1ULL << MTHCA_EVENT_TYPE_CQ_ERROR) | \ | |
105 | (1ULL << MTHCA_EVENT_TYPE_WQ_CATAS_ERROR) | \ | |
106 | (1ULL << MTHCA_EVENT_TYPE_EEC_CATAS_ERROR) | \ | |
107 | (1ULL << MTHCA_EVENT_TYPE_PATH_MIG_FAILED) | \ | |
108 | (1ULL << MTHCA_EVENT_TYPE_WQ_INVAL_REQ_ERROR) | \ | |
109 | (1ULL << MTHCA_EVENT_TYPE_WQ_ACCESS_ERROR) | \ | |
110 | (1ULL << MTHCA_EVENT_TYPE_LOCAL_CATAS_ERROR) | \ | |
111 | (1ULL << MTHCA_EVENT_TYPE_PORT_CHANGE) | \ | |
112 | (1ULL << MTHCA_EVENT_TYPE_ECC_DETECT)) | |
90f104da RD |
113 | #define MTHCA_SRQ_EVENT_MASK ((1ULL << MTHCA_EVENT_TYPE_SRQ_CATAS_ERROR) | \ |
114 | (1ULL << MTHCA_EVENT_TYPE_SRQ_QP_LAST_WQE) | \ | |
115 | (1ULL << MTHCA_EVENT_TYPE_SRQ_LIMIT)) | |
1da177e4 LT |
116 | #define MTHCA_CMD_EVENT_MASK (1ULL << MTHCA_EVENT_TYPE_CMD) |
117 | ||
118 | #define MTHCA_EQ_DB_INC_CI (1 << 24) | |
119 | #define MTHCA_EQ_DB_REQ_NOT (2 << 24) | |
120 | #define MTHCA_EQ_DB_DISARM_CQ (3 << 24) | |
121 | #define MTHCA_EQ_DB_SET_CI (4 << 24) | |
122 | #define MTHCA_EQ_DB_ALWAYS_ARM (5 << 24) | |
123 | ||
124 | struct mthca_eqe { | |
125 | u8 reserved1; | |
126 | u8 type; | |
127 | u8 reserved2; | |
128 | u8 subtype; | |
129 | union { | |
130 | u32 raw[6]; | |
131 | struct { | |
97f52eb4 | 132 | __be32 cqn; |
1da177e4 LT |
133 | } __attribute__((packed)) comp; |
134 | struct { | |
97f52eb4 SH |
135 | u16 reserved1; |
136 | __be16 token; | |
137 | u32 reserved2; | |
138 | u8 reserved3[3]; | |
139 | u8 status; | |
140 | __be64 out_param; | |
1da177e4 LT |
141 | } __attribute__((packed)) cmd; |
142 | struct { | |
97f52eb4 | 143 | __be32 qpn; |
1da177e4 | 144 | } __attribute__((packed)) qp; |
90f104da RD |
145 | struct { |
146 | __be32 srqn; | |
147 | } __attribute__((packed)) srq; | |
1da177e4 | 148 | struct { |
97f52eb4 SH |
149 | __be32 cqn; |
150 | u32 reserved1; | |
151 | u8 reserved2[3]; | |
152 | u8 syndrome; | |
1da177e4 LT |
153 | } __attribute__((packed)) cq_err; |
154 | struct { | |
97f52eb4 SH |
155 | u32 reserved1[2]; |
156 | __be32 port; | |
1da177e4 LT |
157 | } __attribute__((packed)) port_change; |
158 | } event; | |
159 | u8 reserved3[3]; | |
160 | u8 owner; | |
161 | } __attribute__((packed)); | |
162 | ||
163 | #define MTHCA_EQ_ENTRY_OWNER_SW (0 << 7) | |
164 | #define MTHCA_EQ_ENTRY_OWNER_HW (1 << 7) | |
165 | ||
166 | static inline u64 async_mask(struct mthca_dev *dev) | |
167 | { | |
168 | return dev->mthca_flags & MTHCA_FLAG_SRQ ? | |
169 | MTHCA_ASYNC_EVENT_MASK | MTHCA_SRQ_EVENT_MASK : | |
170 | MTHCA_ASYNC_EVENT_MASK; | |
171 | } | |
172 | ||
173 | static inline void tavor_set_eq_ci(struct mthca_dev *dev, struct mthca_eq *eq, u32 ci) | |
174 | { | |
1da177e4 LT |
175 | /* |
176 | * This barrier makes sure that all updates to ownership bits | |
177 | * done by set_eqe_hw() hit memory before the consumer index | |
178 | * is updated. set_eq_ci() allows the HCA to possibly write | |
179 | * more EQ entries, and we want to avoid the exceedingly | |
180 | * unlikely possibility of the HCA writing an entry and then | |
181 | * having set_eqe_hw() overwrite the owner field. | |
182 | */ | |
183 | wmb(); | |
ab8403c4 | 184 | mthca_write64(MTHCA_EQ_DB_SET_CI | eq->eqn, ci & (eq->nent - 1), |
1da177e4 LT |
185 | dev->kar + MTHCA_EQ_DOORBELL, |
186 | MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock)); | |
187 | } | |
188 | ||
189 | static inline void arbel_set_eq_ci(struct mthca_dev *dev, struct mthca_eq *eq, u32 ci) | |
190 | { | |
191 | /* See comment in tavor_set_eq_ci() above. */ | |
192 | wmb(); | |
97f52eb4 SH |
193 | __raw_writel((__force u32) cpu_to_be32(ci), |
194 | dev->eq_regs.arbel.eq_set_ci_base + eq->eqn * 8); | |
1da177e4 LT |
195 | /* We still want ordering, just not swabbing, so add a barrier */ |
196 | mb(); | |
197 | } | |
198 | ||
199 | static inline void set_eq_ci(struct mthca_dev *dev, struct mthca_eq *eq, u32 ci) | |
200 | { | |
d10ddbf6 | 201 | if (mthca_is_memfree(dev)) |
1da177e4 LT |
202 | arbel_set_eq_ci(dev, eq, ci); |
203 | else | |
204 | tavor_set_eq_ci(dev, eq, ci); | |
205 | } | |
206 | ||
207 | static inline void tavor_eq_req_not(struct mthca_dev *dev, int eqn) | |
208 | { | |
ab8403c4 | 209 | mthca_write64(MTHCA_EQ_DB_REQ_NOT | eqn, 0, |
1da177e4 LT |
210 | dev->kar + MTHCA_EQ_DOORBELL, |
211 | MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock)); | |
212 | } | |
213 | ||
214 | static inline void arbel_eq_req_not(struct mthca_dev *dev, u32 eqn_mask) | |
215 | { | |
216 | writel(eqn_mask, dev->eq_regs.arbel.eq_arm); | |
217 | } | |
218 | ||
219 | static inline void disarm_cq(struct mthca_dev *dev, int eqn, int cqn) | |
220 | { | |
d10ddbf6 | 221 | if (!mthca_is_memfree(dev)) { |
ab8403c4 | 222 | mthca_write64(MTHCA_EQ_DB_DISARM_CQ | eqn, cqn, |
1da177e4 LT |
223 | dev->kar + MTHCA_EQ_DOORBELL, |
224 | MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock)); | |
225 | } | |
226 | } | |
227 | ||
228 | static inline struct mthca_eqe *get_eqe(struct mthca_eq *eq, u32 entry) | |
229 | { | |
230 | unsigned long off = (entry & (eq->nent - 1)) * MTHCA_EQ_ENTRY_SIZE; | |
231 | return eq->page_list[off / PAGE_SIZE].buf + off % PAGE_SIZE; | |
232 | } | |
233 | ||
b3999393 | 234 | static inline struct mthca_eqe *next_eqe_sw(struct mthca_eq *eq) |
1da177e4 | 235 | { |
b3999393 | 236 | struct mthca_eqe *eqe; |
1da177e4 LT |
237 | eqe = get_eqe(eq, eq->cons_index); |
238 | return (MTHCA_EQ_ENTRY_OWNER_HW & eqe->owner) ? NULL : eqe; | |
239 | } | |
240 | ||
241 | static inline void set_eqe_hw(struct mthca_eqe *eqe) | |
242 | { | |
243 | eqe->owner = MTHCA_EQ_ENTRY_OWNER_HW; | |
244 | } | |
245 | ||
246 | static void port_change(struct mthca_dev *dev, int port, int active) | |
247 | { | |
248 | struct ib_event record; | |
249 | ||
250 | mthca_dbg(dev, "Port change to %s for port %d\n", | |
251 | active ? "active" : "down", port); | |
252 | ||
253 | record.device = &dev->ib_dev; | |
254 | record.event = active ? IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; | |
255 | record.element.port_num = port; | |
256 | ||
257 | ib_dispatch_event(&record); | |
258 | } | |
259 | ||
260 | static int mthca_eq_int(struct mthca_dev *dev, struct mthca_eq *eq) | |
261 | { | |
262 | struct mthca_eqe *eqe; | |
263 | int disarm_cqn; | |
92898522 MT |
264 | int eqes_found = 0; |
265 | int set_ci = 0; | |
1da177e4 LT |
266 | |
267 | while ((eqe = next_eqe_sw(eq))) { | |
1da177e4 LT |
268 | /* |
269 | * Make sure we read EQ entry contents after we've | |
270 | * checked the ownership bit. | |
271 | */ | |
272 | rmb(); | |
273 | ||
274 | switch (eqe->type) { | |
275 | case MTHCA_EVENT_TYPE_COMP: | |
276 | disarm_cqn = be32_to_cpu(eqe->event.comp.cqn) & 0xffffff; | |
277 | disarm_cq(dev, eq->eqn, disarm_cqn); | |
affcd505 | 278 | mthca_cq_completion(dev, disarm_cqn); |
1da177e4 LT |
279 | break; |
280 | ||
281 | case MTHCA_EVENT_TYPE_PATH_MIG: | |
282 | mthca_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff, | |
283 | IB_EVENT_PATH_MIG); | |
284 | break; | |
285 | ||
286 | case MTHCA_EVENT_TYPE_COMM_EST: | |
287 | mthca_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff, | |
288 | IB_EVENT_COMM_EST); | |
289 | break; | |
290 | ||
291 | case MTHCA_EVENT_TYPE_SQ_DRAINED: | |
292 | mthca_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff, | |
293 | IB_EVENT_SQ_DRAINED); | |
294 | break; | |
295 | ||
90f104da RD |
296 | case MTHCA_EVENT_TYPE_SRQ_QP_LAST_WQE: |
297 | mthca_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff, | |
298 | IB_EVENT_QP_LAST_WQE_REACHED); | |
299 | break; | |
300 | ||
301 | case MTHCA_EVENT_TYPE_SRQ_LIMIT: | |
302 | mthca_srq_event(dev, be32_to_cpu(eqe->event.srq.srqn) & 0xffffff, | |
303 | IB_EVENT_SRQ_LIMIT_REACHED); | |
304 | break; | |
305 | ||
1da177e4 LT |
306 | case MTHCA_EVENT_TYPE_WQ_CATAS_ERROR: |
307 | mthca_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff, | |
308 | IB_EVENT_QP_FATAL); | |
309 | break; | |
310 | ||
311 | case MTHCA_EVENT_TYPE_PATH_MIG_FAILED: | |
312 | mthca_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff, | |
313 | IB_EVENT_PATH_MIG_ERR); | |
314 | break; | |
315 | ||
316 | case MTHCA_EVENT_TYPE_WQ_INVAL_REQ_ERROR: | |
317 | mthca_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff, | |
318 | IB_EVENT_QP_REQ_ERR); | |
319 | break; | |
320 | ||
321 | case MTHCA_EVENT_TYPE_WQ_ACCESS_ERROR: | |
322 | mthca_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff, | |
323 | IB_EVENT_QP_ACCESS_ERR); | |
324 | break; | |
325 | ||
326 | case MTHCA_EVENT_TYPE_CMD: | |
327 | mthca_cmd_event(dev, | |
328 | be16_to_cpu(eqe->event.cmd.token), | |
329 | eqe->event.cmd.status, | |
330 | be64_to_cpu(eqe->event.cmd.out_param)); | |
1da177e4 LT |
331 | break; |
332 | ||
333 | case MTHCA_EVENT_TYPE_PORT_CHANGE: | |
334 | port_change(dev, | |
335 | (be32_to_cpu(eqe->event.port_change.port) >> 28) & 3, | |
336 | eqe->subtype == 0x4); | |
337 | break; | |
338 | ||
339 | case MTHCA_EVENT_TYPE_CQ_ERROR: | |
b87dcfba | 340 | mthca_warn(dev, "CQ %s on CQN %06x\n", |
1da177e4 LT |
341 | eqe->event.cq_err.syndrome == 1 ? |
342 | "overrun" : "access violation", | |
b87dcfba | 343 | be32_to_cpu(eqe->event.cq_err.cqn) & 0xffffff); |
affcd505 MT |
344 | mthca_cq_event(dev, be32_to_cpu(eqe->event.cq_err.cqn), |
345 | IB_EVENT_CQ_ERR); | |
1da177e4 LT |
346 | break; |
347 | ||
348 | case MTHCA_EVENT_TYPE_EQ_OVERFLOW: | |
349 | mthca_warn(dev, "EQ overrun on EQN %d\n", eq->eqn); | |
350 | break; | |
351 | ||
352 | case MTHCA_EVENT_TYPE_EEC_CATAS_ERROR: | |
353 | case MTHCA_EVENT_TYPE_SRQ_CATAS_ERROR: | |
354 | case MTHCA_EVENT_TYPE_LOCAL_CATAS_ERROR: | |
355 | case MTHCA_EVENT_TYPE_ECC_DETECT: | |
356 | default: | |
357 | mthca_warn(dev, "Unhandled event %02x(%02x) on EQ %d\n", | |
358 | eqe->type, eqe->subtype, eq->eqn); | |
359 | break; | |
2b50176d | 360 | } |
1da177e4 LT |
361 | |
362 | set_eqe_hw(eqe); | |
363 | ++eq->cons_index; | |
364 | eqes_found = 1; | |
92898522 | 365 | ++set_ci; |
1da177e4 | 366 | |
92898522 MT |
367 | /* |
368 | * The HCA will think the queue has overflowed if we | |
369 | * don't tell it we've been processing events. We | |
370 | * create our EQs with MTHCA_NUM_SPARE_EQE extra | |
371 | * entries, so we must update our consumer index at | |
372 | * least that often. | |
373 | */ | |
374 | if (unlikely(set_ci >= MTHCA_NUM_SPARE_EQE)) { | |
1da177e4 LT |
375 | /* |
376 | * Conditional on hca_type is OK here because | |
377 | * this is a rare case, not the fast path. | |
378 | */ | |
379 | set_eq_ci(dev, eq, eq->cons_index); | |
380 | set_ci = 0; | |
381 | } | |
382 | } | |
383 | ||
384 | /* | |
385 | * Rely on caller to set consumer index so that we don't have | |
386 | * to test hca_type in our interrupt handling fast path. | |
387 | */ | |
388 | return eqes_found; | |
389 | } | |
390 | ||
7d12e780 | 391 | static irqreturn_t mthca_tavor_interrupt(int irq, void *dev_ptr) |
1da177e4 LT |
392 | { |
393 | struct mthca_dev *dev = dev_ptr; | |
394 | u32 ecr; | |
395 | int i; | |
396 | ||
397 | if (dev->eq_table.clr_mask) | |
398 | writel(dev->eq_table.clr_mask, dev->eq_table.clr_int); | |
399 | ||
400 | ecr = readl(dev->eq_regs.tavor.ecr_base + 4); | |
c8e0ca68 RD |
401 | if (!ecr) |
402 | return IRQ_NONE; | |
1da177e4 | 403 | |
c8e0ca68 RD |
404 | writel(ecr, dev->eq_regs.tavor.ecr_base + |
405 | MTHCA_ECR_CLR_BASE - MTHCA_ECR_BASE + 4); | |
406 | ||
407 | for (i = 0; i < MTHCA_NUM_EQ; ++i) | |
408 | if (ecr & dev->eq_table.eq[i].eqn_mask) { | |
409 | if (mthca_eq_int(dev, &dev->eq_table.eq[i])) | |
1da177e4 LT |
410 | tavor_set_eq_ci(dev, &dev->eq_table.eq[i], |
411 | dev->eq_table.eq[i].cons_index); | |
c8e0ca68 RD |
412 | tavor_eq_req_not(dev, dev->eq_table.eq[i].eqn); |
413 | } | |
1da177e4 | 414 | |
c8e0ca68 | 415 | return IRQ_HANDLED; |
1da177e4 LT |
416 | } |
417 | ||
7d12e780 | 418 | static irqreturn_t mthca_tavor_msi_x_interrupt(int irq, void *eq_ptr) |
1da177e4 LT |
419 | { |
420 | struct mthca_eq *eq = eq_ptr; | |
421 | struct mthca_dev *dev = eq->dev; | |
422 | ||
423 | mthca_eq_int(dev, eq); | |
424 | tavor_set_eq_ci(dev, eq, eq->cons_index); | |
425 | tavor_eq_req_not(dev, eq->eqn); | |
426 | ||
427 | /* MSI-X vectors always belong to us */ | |
428 | return IRQ_HANDLED; | |
429 | } | |
430 | ||
7d12e780 | 431 | static irqreturn_t mthca_arbel_interrupt(int irq, void *dev_ptr) |
1da177e4 LT |
432 | { |
433 | struct mthca_dev *dev = dev_ptr; | |
434 | int work = 0; | |
435 | int i; | |
436 | ||
437 | if (dev->eq_table.clr_mask) | |
438 | writel(dev->eq_table.clr_mask, dev->eq_table.clr_int); | |
439 | ||
440 | for (i = 0; i < MTHCA_NUM_EQ; ++i) | |
441 | if (mthca_eq_int(dev, &dev->eq_table.eq[i])) { | |
442 | work = 1; | |
443 | arbel_set_eq_ci(dev, &dev->eq_table.eq[i], | |
444 | dev->eq_table.eq[i].cons_index); | |
445 | } | |
446 | ||
447 | arbel_eq_req_not(dev, dev->eq_table.arm_mask); | |
448 | ||
449 | return IRQ_RETVAL(work); | |
450 | } | |
451 | ||
7d12e780 | 452 | static irqreturn_t mthca_arbel_msi_x_interrupt(int irq, void *eq_ptr) |
1da177e4 LT |
453 | { |
454 | struct mthca_eq *eq = eq_ptr; | |
455 | struct mthca_dev *dev = eq->dev; | |
456 | ||
457 | mthca_eq_int(dev, eq); | |
458 | arbel_set_eq_ci(dev, eq, eq->cons_index); | |
459 | arbel_eq_req_not(dev, eq->eqn_mask); | |
460 | ||
461 | /* MSI-X vectors always belong to us */ | |
462 | return IRQ_HANDLED; | |
463 | } | |
464 | ||
f4f3d0f0 RD |
465 | static int mthca_create_eq(struct mthca_dev *dev, |
466 | int nent, | |
467 | u8 intr, | |
468 | struct mthca_eq *eq) | |
1da177e4 | 469 | { |
46620056 | 470 | int npages; |
1da177e4 LT |
471 | u64 *dma_list = NULL; |
472 | dma_addr_t t; | |
ed878458 | 473 | struct mthca_mailbox *mailbox; |
1da177e4 LT |
474 | struct mthca_eq_context *eq_context; |
475 | int err = -ENOMEM; | |
476 | int i; | |
1da177e4 | 477 | |
c915033f RD |
478 | eq->dev = dev; |
479 | eq->nent = roundup_pow_of_two(max(nent, 2)); | |
2fa5e2eb | 480 | npages = ALIGN(eq->nent * MTHCA_EQ_ENTRY_SIZE, PAGE_SIZE) / PAGE_SIZE; |
1da177e4 LT |
481 | |
482 | eq->page_list = kmalloc(npages * sizeof *eq->page_list, | |
483 | GFP_KERNEL); | |
484 | if (!eq->page_list) | |
485 | goto err_out; | |
486 | ||
487 | for (i = 0; i < npages; ++i) | |
488 | eq->page_list[i].buf = NULL; | |
489 | ||
490 | dma_list = kmalloc(npages * sizeof *dma_list, GFP_KERNEL); | |
491 | if (!dma_list) | |
492 | goto err_out_free; | |
493 | ||
ed878458 RD |
494 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
495 | if (IS_ERR(mailbox)) | |
1da177e4 | 496 | goto err_out_free; |
ed878458 | 497 | eq_context = mailbox->buf; |
1da177e4 LT |
498 | |
499 | for (i = 0; i < npages; ++i) { | |
64dc81fc RD |
500 | eq->page_list[i].buf = dma_alloc_coherent(&dev->pdev->dev, |
501 | PAGE_SIZE, &t, GFP_KERNEL); | |
1da177e4 | 502 | if (!eq->page_list[i].buf) |
ed878458 | 503 | goto err_out_free_pages; |
1da177e4 LT |
504 | |
505 | dma_list[i] = t; | |
3a2baff7 | 506 | dma_unmap_addr_set(&eq->page_list[i], mapping, t); |
1da177e4 | 507 | |
8909c571 | 508 | clear_page(eq->page_list[i].buf); |
1da177e4 LT |
509 | } |
510 | ||
c915033f | 511 | for (i = 0; i < eq->nent; ++i) |
1da177e4 LT |
512 | set_eqe_hw(get_eqe(eq, i)); |
513 | ||
514 | eq->eqn = mthca_alloc(&dev->eq_table.alloc); | |
515 | if (eq->eqn == -1) | |
ed878458 | 516 | goto err_out_free_pages; |
1da177e4 LT |
517 | |
518 | err = mthca_mr_alloc_phys(dev, dev->driver_pd.pd_num, | |
519 | dma_list, PAGE_SHIFT, npages, | |
520 | 0, npages * PAGE_SIZE, | |
521 | MTHCA_MPT_FLAG_LOCAL_WRITE | | |
522 | MTHCA_MPT_FLAG_LOCAL_READ, | |
523 | &eq->mr); | |
524 | if (err) | |
525 | goto err_out_free_eq; | |
526 | ||
1da177e4 LT |
527 | memset(eq_context, 0, sizeof *eq_context); |
528 | eq_context->flags = cpu_to_be32(MTHCA_EQ_STATUS_OK | | |
529 | MTHCA_EQ_OWNER_HW | | |
530 | MTHCA_EQ_STATE_ARMED | | |
531 | MTHCA_EQ_FLAG_TR); | |
d10ddbf6 | 532 | if (mthca_is_memfree(dev)) |
1da177e4 LT |
533 | eq_context->flags |= cpu_to_be32(MTHCA_EQ_STATE_ARBEL); |
534 | ||
c915033f | 535 | eq_context->logsize_usrpage = cpu_to_be32((ffs(eq->nent) - 1) << 24); |
d10ddbf6 | 536 | if (mthca_is_memfree(dev)) { |
1da177e4 LT |
537 | eq_context->arbel_pd = cpu_to_be32(dev->driver_pd.pd_num); |
538 | } else { | |
539 | eq_context->logsize_usrpage |= cpu_to_be32(dev->driver_uar.index); | |
540 | eq_context->tavor_pd = cpu_to_be32(dev->driver_pd.pd_num); | |
541 | } | |
542 | eq_context->intr = intr; | |
543 | eq_context->lkey = cpu_to_be32(eq->mr.ibmr.lkey); | |
544 | ||
cdb73db0 | 545 | err = mthca_SW2HW_EQ(dev, mailbox, eq->eqn); |
1da177e4 | 546 | if (err) { |
cdb73db0 | 547 | mthca_warn(dev, "SW2HW_EQ returned %d\n", err); |
1da177e4 LT |
548 | goto err_out_free_mr; |
549 | } | |
550 | ||
551 | kfree(dma_list); | |
ed878458 | 552 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
553 | |
554 | eq->eqn_mask = swab32(1 << eq->eqn); | |
555 | eq->cons_index = 0; | |
556 | ||
557 | dev->eq_table.arm_mask |= eq->eqn_mask; | |
558 | ||
559 | mthca_dbg(dev, "Allocated EQ %d with %d entries\n", | |
c915033f | 560 | eq->eqn, eq->nent); |
1da177e4 LT |
561 | |
562 | return err; | |
563 | ||
564 | err_out_free_mr: | |
565 | mthca_free_mr(dev, &eq->mr); | |
566 | ||
567 | err_out_free_eq: | |
568 | mthca_free(&dev->eq_table.alloc, eq->eqn); | |
569 | ||
ed878458 | 570 | err_out_free_pages: |
1da177e4 LT |
571 | for (i = 0; i < npages; ++i) |
572 | if (eq->page_list[i].buf) | |
64dc81fc RD |
573 | dma_free_coherent(&dev->pdev->dev, PAGE_SIZE, |
574 | eq->page_list[i].buf, | |
3a2baff7 | 575 | dma_unmap_addr(&eq->page_list[i], |
64dc81fc | 576 | mapping)); |
1da177e4 | 577 | |
ed878458 RD |
578 | mthca_free_mailbox(dev, mailbox); |
579 | ||
580 | err_out_free: | |
1da177e4 LT |
581 | kfree(eq->page_list); |
582 | kfree(dma_list); | |
1da177e4 LT |
583 | |
584 | err_out: | |
585 | return err; | |
586 | } | |
587 | ||
588 | static void mthca_free_eq(struct mthca_dev *dev, | |
589 | struct mthca_eq *eq) | |
590 | { | |
ed878458 | 591 | struct mthca_mailbox *mailbox; |
1da177e4 | 592 | int err; |
1da177e4 LT |
593 | int npages = (eq->nent * MTHCA_EQ_ENTRY_SIZE + PAGE_SIZE - 1) / |
594 | PAGE_SIZE; | |
595 | int i; | |
596 | ||
ed878458 RD |
597 | mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); |
598 | if (IS_ERR(mailbox)) | |
1da177e4 LT |
599 | return; |
600 | ||
cdb73db0 | 601 | err = mthca_HW2SW_EQ(dev, mailbox, eq->eqn); |
1da177e4 | 602 | if (err) |
cdb73db0 | 603 | mthca_warn(dev, "HW2SW_EQ returned %d\n", err); |
1da177e4 LT |
604 | |
605 | dev->eq_table.arm_mask &= ~eq->eqn_mask; | |
606 | ||
607 | if (0) { | |
608 | mthca_dbg(dev, "Dumping EQ context %02x:\n", eq->eqn); | |
609 | for (i = 0; i < sizeof (struct mthca_eq_context) / 4; ++i) { | |
610 | if (i % 4 == 0) | |
611 | printk("[%02x] ", i * 4); | |
ed878458 | 612 | printk(" %08x", be32_to_cpup(mailbox->buf + i * 4)); |
1da177e4 LT |
613 | if ((i + 1) % 4 == 0) |
614 | printk("\n"); | |
615 | } | |
616 | } | |
617 | ||
618 | mthca_free_mr(dev, &eq->mr); | |
619 | for (i = 0; i < npages; ++i) | |
620 | pci_free_consistent(dev->pdev, PAGE_SIZE, | |
621 | eq->page_list[i].buf, | |
3a2baff7 | 622 | dma_unmap_addr(&eq->page_list[i], mapping)); |
1da177e4 LT |
623 | |
624 | kfree(eq->page_list); | |
ed878458 | 625 | mthca_free_mailbox(dev, mailbox); |
1da177e4 LT |
626 | } |
627 | ||
628 | static void mthca_free_irqs(struct mthca_dev *dev) | |
629 | { | |
630 | int i; | |
631 | ||
632 | if (dev->eq_table.have_irq) | |
633 | free_irq(dev->pdev->irq, dev); | |
634 | for (i = 0; i < MTHCA_NUM_EQ; ++i) | |
9aa0a489 | 635 | if (dev->eq_table.eq[i].have_irq) { |
1da177e4 LT |
636 | free_irq(dev->eq_table.eq[i].msi_x_vector, |
637 | dev->eq_table.eq + i); | |
9aa0a489 RD |
638 | dev->eq_table.eq[i].have_irq = 0; |
639 | } | |
1da177e4 LT |
640 | } |
641 | ||
f4f3d0f0 RD |
642 | static int mthca_map_reg(struct mthca_dev *dev, |
643 | unsigned long offset, unsigned long size, | |
644 | void __iomem **map) | |
1da177e4 | 645 | { |
eb4a7cbf | 646 | phys_addr_t base = pci_resource_start(dev->pdev, 0); |
1da177e4 | 647 | |
1da177e4 | 648 | *map = ioremap(base + offset, size); |
208dde28 | 649 | if (!*map) |
1da177e4 | 650 | return -ENOMEM; |
1da177e4 LT |
651 | |
652 | return 0; | |
653 | } | |
654 | ||
f4f3d0f0 | 655 | static int mthca_map_eq_regs(struct mthca_dev *dev) |
1da177e4 | 656 | { |
d10ddbf6 | 657 | if (mthca_is_memfree(dev)) { |
1da177e4 LT |
658 | /* |
659 | * We assume that the EQ arm and EQ set CI registers | |
660 | * fall within the first BAR. We can't trust the | |
661 | * values firmware gives us, since those addresses are | |
662 | * valid on the HCA's side of the PCI bus but not | |
663 | * necessarily the host side. | |
664 | */ | |
665 | if (mthca_map_reg(dev, (pci_resource_len(dev->pdev, 0) - 1) & | |
666 | dev->fw.arbel.clr_int_base, MTHCA_CLR_INT_SIZE, | |
667 | &dev->clr_base)) { | |
668 | mthca_err(dev, "Couldn't map interrupt clear register, " | |
669 | "aborting.\n"); | |
670 | return -ENOMEM; | |
671 | } | |
672 | ||
673 | /* | |
674 | * Add 4 because we limit ourselves to EQs 0 ... 31, | |
675 | * so we only need the low word of the register. | |
676 | */ | |
677 | if (mthca_map_reg(dev, ((pci_resource_len(dev->pdev, 0) - 1) & | |
678 | dev->fw.arbel.eq_arm_base) + 4, 4, | |
679 | &dev->eq_regs.arbel.eq_arm)) { | |
177214af | 680 | mthca_err(dev, "Couldn't map EQ arm register, aborting.\n"); |
208dde28 | 681 | iounmap(dev->clr_base); |
1da177e4 LT |
682 | return -ENOMEM; |
683 | } | |
684 | ||
685 | if (mthca_map_reg(dev, (pci_resource_len(dev->pdev, 0) - 1) & | |
686 | dev->fw.arbel.eq_set_ci_base, | |
687 | MTHCA_EQ_SET_CI_SIZE, | |
688 | &dev->eq_regs.arbel.eq_set_ci_base)) { | |
177214af | 689 | mthca_err(dev, "Couldn't map EQ CI register, aborting.\n"); |
208dde28 RD |
690 | iounmap(dev->eq_regs.arbel.eq_arm); |
691 | iounmap(dev->clr_base); | |
1da177e4 LT |
692 | return -ENOMEM; |
693 | } | |
694 | } else { | |
695 | if (mthca_map_reg(dev, MTHCA_CLR_INT_BASE, MTHCA_CLR_INT_SIZE, | |
696 | &dev->clr_base)) { | |
697 | mthca_err(dev, "Couldn't map interrupt clear register, " | |
698 | "aborting.\n"); | |
699 | return -ENOMEM; | |
700 | } | |
701 | ||
702 | if (mthca_map_reg(dev, MTHCA_ECR_BASE, | |
703 | MTHCA_ECR_SIZE + MTHCA_ECR_CLR_SIZE, | |
704 | &dev->eq_regs.tavor.ecr_base)) { | |
705 | mthca_err(dev, "Couldn't map ecr register, " | |
706 | "aborting.\n"); | |
208dde28 | 707 | iounmap(dev->clr_base); |
1da177e4 LT |
708 | return -ENOMEM; |
709 | } | |
710 | } | |
711 | ||
712 | return 0; | |
713 | ||
714 | } | |
715 | ||
e1f7868c | 716 | static void mthca_unmap_eq_regs(struct mthca_dev *dev) |
1da177e4 | 717 | { |
d10ddbf6 | 718 | if (mthca_is_memfree(dev)) { |
208dde28 RD |
719 | iounmap(dev->eq_regs.arbel.eq_set_ci_base); |
720 | iounmap(dev->eq_regs.arbel.eq_arm); | |
721 | iounmap(dev->clr_base); | |
1da177e4 | 722 | } else { |
208dde28 RD |
723 | iounmap(dev->eq_regs.tavor.ecr_base); |
724 | iounmap(dev->clr_base); | |
1da177e4 LT |
725 | } |
726 | } | |
727 | ||
f4f3d0f0 | 728 | int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt) |
1da177e4 LT |
729 | { |
730 | int ret; | |
1da177e4 LT |
731 | |
732 | /* | |
733 | * We assume that mapping one page is enough for the whole EQ | |
734 | * context table. This is fine with all current HCAs, because | |
735 | * we only use 32 EQs and each EQ uses 32 bytes of context | |
736 | * memory, or 1 KB total. | |
737 | */ | |
738 | dev->eq_table.icm_virt = icm_virt; | |
739 | dev->eq_table.icm_page = alloc_page(GFP_HIGHUSER); | |
740 | if (!dev->eq_table.icm_page) | |
741 | return -ENOMEM; | |
742 | dev->eq_table.icm_dma = pci_map_page(dev->pdev, dev->eq_table.icm_page, 0, | |
743 | PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); | |
8d8bb39b | 744 | if (pci_dma_mapping_error(dev->pdev, dev->eq_table.icm_dma)) { |
1da177e4 LT |
745 | __free_page(dev->eq_table.icm_page); |
746 | return -ENOMEM; | |
747 | } | |
748 | ||
cdb73db0 | 749 | ret = mthca_MAP_ICM_page(dev, dev->eq_table.icm_dma, icm_virt); |
1da177e4 LT |
750 | if (ret) { |
751 | pci_unmap_page(dev->pdev, dev->eq_table.icm_dma, PAGE_SIZE, | |
752 | PCI_DMA_BIDIRECTIONAL); | |
753 | __free_page(dev->eq_table.icm_page); | |
754 | } | |
755 | ||
756 | return ret; | |
757 | } | |
758 | ||
e1f7868c | 759 | void mthca_unmap_eq_icm(struct mthca_dev *dev) |
1da177e4 | 760 | { |
cdb73db0 | 761 | mthca_UNMAP_ICM(dev, dev->eq_table.icm_virt, 1); |
1da177e4 LT |
762 | pci_unmap_page(dev->pdev, dev->eq_table.icm_dma, PAGE_SIZE, |
763 | PCI_DMA_BIDIRECTIONAL); | |
764 | __free_page(dev->eq_table.icm_page); | |
765 | } | |
766 | ||
f4f3d0f0 | 767 | int mthca_init_eq_table(struct mthca_dev *dev) |
1da177e4 LT |
768 | { |
769 | int err; | |
1da177e4 LT |
770 | u8 intr; |
771 | int i; | |
772 | ||
773 | err = mthca_alloc_init(&dev->eq_table.alloc, | |
774 | dev->limits.num_eqs, | |
775 | dev->limits.num_eqs - 1, | |
776 | dev->limits.reserved_eqs); | |
777 | if (err) | |
778 | return err; | |
779 | ||
780 | err = mthca_map_eq_regs(dev); | |
781 | if (err) | |
782 | goto err_out_free; | |
783 | ||
e57895d3 | 784 | if (dev->mthca_flags & MTHCA_FLAG_MSI_X) { |
1da177e4 LT |
785 | dev->eq_table.clr_mask = 0; |
786 | } else { | |
787 | dev->eq_table.clr_mask = | |
788 | swab32(1 << (dev->eq_table.inta_pin & 31)); | |
789 | dev->eq_table.clr_int = dev->clr_base + | |
f7ed3a59 | 790 | (dev->eq_table.inta_pin < 32 ? 4 : 0); |
1da177e4 LT |
791 | } |
792 | ||
793 | dev->eq_table.arm_mask = 0; | |
794 | ||
e57895d3 | 795 | intr = dev->eq_table.inta_pin; |
1da177e4 | 796 | |
92898522 | 797 | err = mthca_create_eq(dev, dev->limits.num_cqs + MTHCA_NUM_SPARE_EQE, |
1da177e4 LT |
798 | (dev->mthca_flags & MTHCA_FLAG_MSI_X) ? 128 : intr, |
799 | &dev->eq_table.eq[MTHCA_EQ_COMP]); | |
800 | if (err) | |
801 | goto err_out_unmap; | |
802 | ||
92898522 | 803 | err = mthca_create_eq(dev, MTHCA_NUM_ASYNC_EQE + MTHCA_NUM_SPARE_EQE, |
1da177e4 LT |
804 | (dev->mthca_flags & MTHCA_FLAG_MSI_X) ? 129 : intr, |
805 | &dev->eq_table.eq[MTHCA_EQ_ASYNC]); | |
806 | if (err) | |
807 | goto err_out_comp; | |
808 | ||
92898522 | 809 | err = mthca_create_eq(dev, MTHCA_NUM_CMD_EQE + MTHCA_NUM_SPARE_EQE, |
1da177e4 LT |
810 | (dev->mthca_flags & MTHCA_FLAG_MSI_X) ? 130 : intr, |
811 | &dev->eq_table.eq[MTHCA_EQ_CMD]); | |
812 | if (err) | |
813 | goto err_out_async; | |
814 | ||
815 | if (dev->mthca_flags & MTHCA_FLAG_MSI_X) { | |
816 | static const char *eq_name[] = { | |
d94a8689 AB |
817 | [MTHCA_EQ_COMP] = DRV_NAME "-comp", |
818 | [MTHCA_EQ_ASYNC] = DRV_NAME "-async", | |
819 | [MTHCA_EQ_CMD] = DRV_NAME "-cmd" | |
1da177e4 LT |
820 | }; |
821 | ||
822 | for (i = 0; i < MTHCA_NUM_EQ; ++i) { | |
d94a8689 AB |
823 | snprintf(dev->eq_table.eq[i].irq_name, |
824 | IB_DEVICE_NAME_MAX, | |
825 | "%s@pci:%s", eq_name[i], | |
826 | pci_name(dev->pdev)); | |
1da177e4 | 827 | err = request_irq(dev->eq_table.eq[i].msi_x_vector, |
d10ddbf6 | 828 | mthca_is_memfree(dev) ? |
1da177e4 LT |
829 | mthca_arbel_msi_x_interrupt : |
830 | mthca_tavor_msi_x_interrupt, | |
d94a8689 AB |
831 | 0, dev->eq_table.eq[i].irq_name, |
832 | dev->eq_table.eq + i); | |
1da177e4 LT |
833 | if (err) |
834 | goto err_out_cmd; | |
835 | dev->eq_table.eq[i].have_irq = 1; | |
836 | } | |
837 | } else { | |
d94a8689 AB |
838 | snprintf(dev->eq_table.eq[0].irq_name, IB_DEVICE_NAME_MAX, |
839 | DRV_NAME "@pci:%s", pci_name(dev->pdev)); | |
1da177e4 | 840 | err = request_irq(dev->pdev->irq, |
d10ddbf6 | 841 | mthca_is_memfree(dev) ? |
1da177e4 LT |
842 | mthca_arbel_interrupt : |
843 | mthca_tavor_interrupt, | |
d94a8689 | 844 | IRQF_SHARED, dev->eq_table.eq[0].irq_name, dev); |
1da177e4 LT |
845 | if (err) |
846 | goto err_out_cmd; | |
847 | dev->eq_table.have_irq = 1; | |
848 | } | |
849 | ||
850 | err = mthca_MAP_EQ(dev, async_mask(dev), | |
cdb73db0 | 851 | 0, dev->eq_table.eq[MTHCA_EQ_ASYNC].eqn); |
1da177e4 LT |
852 | if (err) |
853 | mthca_warn(dev, "MAP_EQ for async EQ %d failed (%d)\n", | |
854 | dev->eq_table.eq[MTHCA_EQ_ASYNC].eqn, err); | |
1da177e4 LT |
855 | |
856 | err = mthca_MAP_EQ(dev, MTHCA_CMD_EVENT_MASK, | |
cdb73db0 | 857 | 0, dev->eq_table.eq[MTHCA_EQ_CMD].eqn); |
1da177e4 LT |
858 | if (err) |
859 | mthca_warn(dev, "MAP_EQ for cmd EQ %d failed (%d)\n", | |
860 | dev->eq_table.eq[MTHCA_EQ_CMD].eqn, err); | |
1da177e4 | 861 | |
6b63e301 | 862 | for (i = 0; i < MTHCA_NUM_EQ; ++i) |
d10ddbf6 | 863 | if (mthca_is_memfree(dev)) |
1da177e4 LT |
864 | arbel_eq_req_not(dev, dev->eq_table.eq[i].eqn_mask); |
865 | else | |
866 | tavor_eq_req_not(dev, dev->eq_table.eq[i].eqn); | |
867 | ||
868 | return 0; | |
869 | ||
870 | err_out_cmd: | |
871 | mthca_free_irqs(dev); | |
872 | mthca_free_eq(dev, &dev->eq_table.eq[MTHCA_EQ_CMD]); | |
873 | ||
874 | err_out_async: | |
875 | mthca_free_eq(dev, &dev->eq_table.eq[MTHCA_EQ_ASYNC]); | |
876 | ||
877 | err_out_comp: | |
878 | mthca_free_eq(dev, &dev->eq_table.eq[MTHCA_EQ_COMP]); | |
879 | ||
880 | err_out_unmap: | |
881 | mthca_unmap_eq_regs(dev); | |
882 | ||
883 | err_out_free: | |
884 | mthca_alloc_cleanup(&dev->eq_table.alloc); | |
885 | return err; | |
886 | } | |
887 | ||
e1f7868c | 888 | void mthca_cleanup_eq_table(struct mthca_dev *dev) |
1da177e4 | 889 | { |
1da177e4 LT |
890 | int i; |
891 | ||
892 | mthca_free_irqs(dev); | |
893 | ||
894 | mthca_MAP_EQ(dev, async_mask(dev), | |
cdb73db0 | 895 | 1, dev->eq_table.eq[MTHCA_EQ_ASYNC].eqn); |
1da177e4 | 896 | mthca_MAP_EQ(dev, MTHCA_CMD_EVENT_MASK, |
cdb73db0 | 897 | 1, dev->eq_table.eq[MTHCA_EQ_CMD].eqn); |
1da177e4 LT |
898 | |
899 | for (i = 0; i < MTHCA_NUM_EQ; ++i) | |
900 | mthca_free_eq(dev, &dev->eq_table.eq[i]); | |
901 | ||
902 | mthca_unmap_eq_regs(dev); | |
903 | ||
904 | mthca_alloc_cleanup(&dev->eq_table.alloc); | |
905 | } |