]>
Commit | Line | Data |
---|---|---|
f94b533d TT |
1 | /* |
2 | * Copyright (c) 2005 Ammasso, Inc. All rights reserved. | |
3 | * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. | |
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. | |
32 | * | |
33 | */ | |
34 | ||
35 | #include <linux/module.h> | |
36 | #include <linux/moduleparam.h> | |
37 | #include <linux/pci.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/etherdevice.h> | |
40 | #include <linux/inetdevice.h> | |
41 | #include <linux/delay.h> | |
42 | #include <linux/ethtool.h> | |
43 | #include <linux/mii.h> | |
44 | #include <linux/if_vlan.h> | |
45 | #include <linux/crc32.h> | |
46 | #include <linux/in.h> | |
47 | #include <linux/ip.h> | |
48 | #include <linux/tcp.h> | |
49 | #include <linux/init.h> | |
50 | #include <linux/dma-mapping.h> | |
51 | #include <linux/if_arp.h> | |
52 | ||
53 | #include <asm/io.h> | |
54 | #include <asm/irq.h> | |
55 | #include <asm/byteorder.h> | |
56 | ||
57 | #include <rdma/ib_smi.h> | |
58 | #include <rdma/ib_user_verbs.h> | |
59 | #include "c2.h" | |
60 | #include "c2_provider.h" | |
61 | #include "c2_user.h" | |
62 | ||
63 | static int c2_query_device(struct ib_device *ibdev, | |
64 | struct ib_device_attr *props) | |
65 | { | |
66 | struct c2_dev *c2dev = to_c2dev(ibdev); | |
67 | ||
68 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
69 | ||
70 | *props = c2dev->props; | |
71 | return 0; | |
72 | } | |
73 | ||
74 | static int c2_query_port(struct ib_device *ibdev, | |
75 | u8 port, struct ib_port_attr *props) | |
76 | { | |
77 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
78 | ||
79 | props->max_mtu = IB_MTU_4096; | |
80 | props->lid = 0; | |
81 | props->lmc = 0; | |
82 | props->sm_lid = 0; | |
83 | props->sm_sl = 0; | |
84 | props->state = IB_PORT_ACTIVE; | |
85 | props->phys_state = 0; | |
86 | props->port_cap_flags = | |
87 | IB_PORT_CM_SUP | | |
88 | IB_PORT_REINIT_SUP | | |
89 | IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; | |
90 | props->gid_tbl_len = 1; | |
91 | props->pkey_tbl_len = 1; | |
92 | props->qkey_viol_cntr = 0; | |
93 | props->active_width = 1; | |
94 | props->active_speed = 1; | |
95 | ||
96 | return 0; | |
97 | } | |
98 | ||
99 | static int c2_modify_port(struct ib_device *ibdev, | |
100 | u8 port, int port_modify_mask, | |
101 | struct ib_port_modify *props) | |
102 | { | |
103 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
104 | return 0; | |
105 | } | |
106 | ||
107 | static int c2_query_pkey(struct ib_device *ibdev, | |
108 | u8 port, u16 index, u16 * pkey) | |
109 | { | |
110 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
111 | *pkey = 0; | |
112 | return 0; | |
113 | } | |
114 | ||
115 | static int c2_query_gid(struct ib_device *ibdev, u8 port, | |
116 | int index, union ib_gid *gid) | |
117 | { | |
118 | struct c2_dev *c2dev = to_c2dev(ibdev); | |
119 | ||
120 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
121 | memset(&(gid->raw[0]), 0, sizeof(gid->raw)); | |
122 | memcpy(&(gid->raw[0]), c2dev->pseudo_netdev->dev_addr, 6); | |
123 | ||
124 | return 0; | |
125 | } | |
126 | ||
127 | /* Allocate the user context data structure. This keeps track | |
128 | * of all objects associated with a particular user-mode client. | |
129 | */ | |
130 | static struct ib_ucontext *c2_alloc_ucontext(struct ib_device *ibdev, | |
131 | struct ib_udata *udata) | |
132 | { | |
133 | struct c2_ucontext *context; | |
134 | ||
135 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
136 | context = kmalloc(sizeof(*context), GFP_KERNEL); | |
137 | if (!context) | |
138 | return ERR_PTR(-ENOMEM); | |
139 | ||
140 | return &context->ibucontext; | |
141 | } | |
142 | ||
143 | static int c2_dealloc_ucontext(struct ib_ucontext *context) | |
144 | { | |
145 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
146 | kfree(context); | |
147 | return 0; | |
148 | } | |
149 | ||
150 | static int c2_mmap_uar(struct ib_ucontext *context, struct vm_area_struct *vma) | |
151 | { | |
152 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
153 | return -ENOSYS; | |
154 | } | |
155 | ||
156 | static struct ib_pd *c2_alloc_pd(struct ib_device *ibdev, | |
157 | struct ib_ucontext *context, | |
158 | struct ib_udata *udata) | |
159 | { | |
160 | struct c2_pd *pd; | |
161 | int err; | |
162 | ||
163 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
164 | ||
165 | pd = kmalloc(sizeof(*pd), GFP_KERNEL); | |
166 | if (!pd) | |
167 | return ERR_PTR(-ENOMEM); | |
168 | ||
169 | err = c2_pd_alloc(to_c2dev(ibdev), !context, pd); | |
170 | if (err) { | |
171 | kfree(pd); | |
172 | return ERR_PTR(err); | |
173 | } | |
174 | ||
175 | if (context) { | |
176 | if (ib_copy_to_udata(udata, &pd->pd_id, sizeof(__u32))) { | |
177 | c2_pd_free(to_c2dev(ibdev), pd); | |
178 | kfree(pd); | |
179 | return ERR_PTR(-EFAULT); | |
180 | } | |
181 | } | |
182 | ||
183 | return &pd->ibpd; | |
184 | } | |
185 | ||
186 | static int c2_dealloc_pd(struct ib_pd *pd) | |
187 | { | |
188 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
189 | c2_pd_free(to_c2dev(pd->device), to_c2pd(pd)); | |
190 | kfree(pd); | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
195 | static struct ib_ah *c2_ah_create(struct ib_pd *pd, struct ib_ah_attr *ah_attr) | |
196 | { | |
197 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
198 | return ERR_PTR(-ENOSYS); | |
199 | } | |
200 | ||
201 | static int c2_ah_destroy(struct ib_ah *ah) | |
202 | { | |
203 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
204 | return -ENOSYS; | |
205 | } | |
206 | ||
207 | static void c2_add_ref(struct ib_qp *ibqp) | |
208 | { | |
209 | struct c2_qp *qp; | |
210 | BUG_ON(!ibqp); | |
211 | qp = to_c2qp(ibqp); | |
212 | atomic_inc(&qp->refcount); | |
213 | } | |
214 | ||
215 | static void c2_rem_ref(struct ib_qp *ibqp) | |
216 | { | |
217 | struct c2_qp *qp; | |
218 | BUG_ON(!ibqp); | |
219 | qp = to_c2qp(ibqp); | |
220 | if (atomic_dec_and_test(&qp->refcount)) | |
221 | wake_up(&qp->wait); | |
222 | } | |
223 | ||
224 | struct ib_qp *c2_get_qp(struct ib_device *device, int qpn) | |
225 | { | |
226 | struct c2_dev* c2dev = to_c2dev(device); | |
227 | struct c2_qp *qp; | |
228 | ||
229 | qp = c2_find_qpn(c2dev, qpn); | |
230 | pr_debug("%s Returning QP=%p for QPN=%d, device=%p, refcount=%d\n", | |
231 | __FUNCTION__, qp, qpn, device, | |
232 | (qp?atomic_read(&qp->refcount):0)); | |
233 | ||
234 | return (qp?&qp->ibqp:NULL); | |
235 | } | |
236 | ||
237 | static struct ib_qp *c2_create_qp(struct ib_pd *pd, | |
238 | struct ib_qp_init_attr *init_attr, | |
239 | struct ib_udata *udata) | |
240 | { | |
241 | struct c2_qp *qp; | |
242 | int err; | |
243 | ||
244 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
245 | ||
246 | switch (init_attr->qp_type) { | |
247 | case IB_QPT_RC: | |
248 | qp = kzalloc(sizeof(*qp), GFP_KERNEL); | |
249 | if (!qp) { | |
250 | pr_debug("%s: Unable to allocate QP\n", __FUNCTION__); | |
251 | return ERR_PTR(-ENOMEM); | |
252 | } | |
253 | spin_lock_init(&qp->lock); | |
254 | if (pd->uobject) { | |
255 | /* userspace specific */ | |
256 | } | |
257 | ||
258 | err = c2_alloc_qp(to_c2dev(pd->device), | |
259 | to_c2pd(pd), init_attr, qp); | |
260 | ||
261 | if (err && pd->uobject) { | |
262 | /* userspace specific */ | |
263 | } | |
264 | ||
265 | break; | |
266 | default: | |
267 | pr_debug("%s: Invalid QP type: %d\n", __FUNCTION__, | |
268 | init_attr->qp_type); | |
269 | return ERR_PTR(-EINVAL); | |
270 | break; | |
271 | } | |
272 | ||
273 | if (err) { | |
274 | kfree(qp); | |
275 | return ERR_PTR(err); | |
276 | } | |
277 | ||
278 | return &qp->ibqp; | |
279 | } | |
280 | ||
281 | static int c2_destroy_qp(struct ib_qp *ib_qp) | |
282 | { | |
283 | struct c2_qp *qp = to_c2qp(ib_qp); | |
284 | ||
285 | pr_debug("%s:%u qp=%p,qp->state=%d\n", | |
286 | __FUNCTION__, __LINE__,ib_qp,qp->state); | |
287 | c2_free_qp(to_c2dev(ib_qp->device), qp); | |
288 | kfree(qp); | |
289 | return 0; | |
290 | } | |
291 | ||
292 | static struct ib_cq *c2_create_cq(struct ib_device *ibdev, int entries, | |
293 | struct ib_ucontext *context, | |
294 | struct ib_udata *udata) | |
295 | { | |
296 | struct c2_cq *cq; | |
297 | int err; | |
298 | ||
299 | cq = kmalloc(sizeof(*cq), GFP_KERNEL); | |
300 | if (!cq) { | |
301 | pr_debug("%s: Unable to allocate CQ\n", __FUNCTION__); | |
302 | return ERR_PTR(-ENOMEM); | |
303 | } | |
304 | ||
305 | err = c2_init_cq(to_c2dev(ibdev), entries, NULL, cq); | |
306 | if (err) { | |
307 | pr_debug("%s: error initializing CQ\n", __FUNCTION__); | |
308 | kfree(cq); | |
309 | return ERR_PTR(err); | |
310 | } | |
311 | ||
312 | return &cq->ibcq; | |
313 | } | |
314 | ||
315 | static int c2_destroy_cq(struct ib_cq *ib_cq) | |
316 | { | |
317 | struct c2_cq *cq = to_c2cq(ib_cq); | |
318 | ||
319 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
320 | ||
321 | c2_free_cq(to_c2dev(ib_cq->device), cq); | |
322 | kfree(cq); | |
323 | ||
324 | return 0; | |
325 | } | |
326 | ||
327 | static inline u32 c2_convert_access(int acc) | |
328 | { | |
329 | return (acc & IB_ACCESS_REMOTE_WRITE ? C2_ACF_REMOTE_WRITE : 0) | | |
330 | (acc & IB_ACCESS_REMOTE_READ ? C2_ACF_REMOTE_READ : 0) | | |
331 | (acc & IB_ACCESS_LOCAL_WRITE ? C2_ACF_LOCAL_WRITE : 0) | | |
332 | C2_ACF_LOCAL_READ | C2_ACF_WINDOW_BIND; | |
333 | } | |
334 | ||
335 | static struct ib_mr *c2_reg_phys_mr(struct ib_pd *ib_pd, | |
336 | struct ib_phys_buf *buffer_list, | |
337 | int num_phys_buf, int acc, u64 * iova_start) | |
338 | { | |
339 | struct c2_mr *mr; | |
340 | u64 *page_list; | |
341 | u32 total_len; | |
342 | int err, i, j, k, page_shift, pbl_depth; | |
343 | ||
344 | pbl_depth = 0; | |
345 | total_len = 0; | |
346 | ||
347 | page_shift = PAGE_SHIFT; | |
348 | /* | |
349 | * If there is only 1 buffer we assume this could | |
350 | * be a map of all phy mem...use a 32k page_shift. | |
351 | */ | |
352 | if (num_phys_buf == 1) | |
353 | page_shift += 3; | |
354 | ||
355 | for (i = 0; i < num_phys_buf; i++) { | |
356 | ||
357 | if (buffer_list[i].addr & ~PAGE_MASK) { | |
358 | pr_debug("Unaligned Memory Buffer: 0x%x\n", | |
359 | (unsigned int) buffer_list[i].addr); | |
360 | return ERR_PTR(-EINVAL); | |
361 | } | |
362 | ||
363 | if (!buffer_list[i].size) { | |
364 | pr_debug("Invalid Buffer Size\n"); | |
365 | return ERR_PTR(-EINVAL); | |
366 | } | |
367 | ||
368 | total_len += buffer_list[i].size; | |
369 | pbl_depth += ALIGN(buffer_list[i].size, | |
370 | (1 << page_shift)) >> page_shift; | |
371 | } | |
372 | ||
373 | page_list = vmalloc(sizeof(u64) * pbl_depth); | |
374 | if (!page_list) { | |
375 | pr_debug("couldn't vmalloc page_list of size %zd\n", | |
376 | (sizeof(u64) * pbl_depth)); | |
377 | return ERR_PTR(-ENOMEM); | |
378 | } | |
379 | ||
380 | for (i = 0, j = 0; i < num_phys_buf; i++) { | |
381 | ||
382 | int naddrs; | |
383 | ||
384 | naddrs = ALIGN(buffer_list[i].size, | |
385 | (1 << page_shift)) >> page_shift; | |
386 | for (k = 0; k < naddrs; k++) | |
387 | page_list[j++] = (buffer_list[i].addr + | |
388 | (k << page_shift)); | |
389 | } | |
390 | ||
391 | mr = kmalloc(sizeof(*mr), GFP_KERNEL); | |
392 | if (!mr) | |
393 | return ERR_PTR(-ENOMEM); | |
394 | ||
395 | mr->pd = to_c2pd(ib_pd); | |
396 | pr_debug("%s - page shift %d, pbl_depth %d, total_len %u, " | |
397 | "*iova_start %llx, first pa %llx, last pa %llx\n", | |
398 | __FUNCTION__, page_shift, pbl_depth, total_len, | |
399 | *iova_start, page_list[0], page_list[pbl_depth-1]); | |
400 | err = c2_nsmr_register_phys_kern(to_c2dev(ib_pd->device), page_list, | |
401 | (1 << page_shift), pbl_depth, | |
402 | total_len, 0, iova_start, | |
403 | c2_convert_access(acc), mr); | |
404 | vfree(page_list); | |
405 | if (err) { | |
406 | kfree(mr); | |
407 | return ERR_PTR(err); | |
408 | } | |
409 | ||
410 | return &mr->ibmr; | |
411 | } | |
412 | ||
413 | static struct ib_mr *c2_get_dma_mr(struct ib_pd *pd, int acc) | |
414 | { | |
415 | struct ib_phys_buf bl; | |
416 | u64 kva = 0; | |
417 | ||
418 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
419 | ||
420 | /* AMSO1100 limit */ | |
421 | bl.size = 0xffffffff; | |
422 | bl.addr = 0; | |
423 | return c2_reg_phys_mr(pd, &bl, 1, acc, &kva); | |
424 | } | |
425 | ||
426 | static struct ib_mr *c2_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, | |
427 | int acc, struct ib_udata *udata) | |
428 | { | |
429 | u64 *pages; | |
430 | u64 kva = 0; | |
431 | int shift, n, len; | |
432 | int i, j, k; | |
433 | int err = 0; | |
434 | struct ib_umem_chunk *chunk; | |
435 | struct c2_pd *c2pd = to_c2pd(pd); | |
436 | struct c2_mr *c2mr; | |
437 | ||
438 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
439 | shift = ffs(region->page_size) - 1; | |
440 | ||
441 | c2mr = kmalloc(sizeof(*c2mr), GFP_KERNEL); | |
442 | if (!c2mr) | |
443 | return ERR_PTR(-ENOMEM); | |
444 | c2mr->pd = c2pd; | |
445 | ||
446 | n = 0; | |
447 | list_for_each_entry(chunk, ®ion->chunk_list, list) | |
448 | n += chunk->nents; | |
449 | ||
450 | pages = kmalloc(n * sizeof(u64), GFP_KERNEL); | |
451 | if (!pages) { | |
452 | err = -ENOMEM; | |
453 | goto err; | |
454 | } | |
455 | ||
456 | i = 0; | |
457 | list_for_each_entry(chunk, ®ion->chunk_list, list) { | |
458 | for (j = 0; j < chunk->nmap; ++j) { | |
459 | len = sg_dma_len(&chunk->page_list[j]) >> shift; | |
460 | for (k = 0; k < len; ++k) { | |
461 | pages[i++] = | |
462 | sg_dma_address(&chunk->page_list[j]) + | |
463 | (region->page_size * k); | |
464 | } | |
465 | } | |
466 | } | |
467 | ||
468 | kva = (u64)region->virt_base; | |
469 | err = c2_nsmr_register_phys_kern(to_c2dev(pd->device), | |
470 | pages, | |
471 | region->page_size, | |
472 | i, | |
473 | region->length, | |
474 | region->offset, | |
475 | &kva, | |
476 | c2_convert_access(acc), | |
477 | c2mr); | |
478 | kfree(pages); | |
479 | if (err) { | |
480 | kfree(c2mr); | |
481 | return ERR_PTR(err); | |
482 | } | |
483 | return &c2mr->ibmr; | |
484 | ||
485 | err: | |
486 | kfree(c2mr); | |
487 | return ERR_PTR(err); | |
488 | } | |
489 | ||
490 | static int c2_dereg_mr(struct ib_mr *ib_mr) | |
491 | { | |
492 | struct c2_mr *mr = to_c2mr(ib_mr); | |
493 | int err; | |
494 | ||
495 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
496 | ||
497 | err = c2_stag_dealloc(to_c2dev(ib_mr->device), ib_mr->lkey); | |
498 | if (err) | |
499 | pr_debug("c2_stag_dealloc failed: %d\n", err); | |
500 | else | |
501 | kfree(mr); | |
502 | ||
503 | return err; | |
504 | } | |
505 | ||
506 | static ssize_t show_rev(struct class_device *cdev, char *buf) | |
507 | { | |
508 | struct c2_dev *dev = container_of(cdev, struct c2_dev, ibdev.class_dev); | |
509 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
510 | return sprintf(buf, "%x\n", dev->props.hw_ver); | |
511 | } | |
512 | ||
513 | static ssize_t show_fw_ver(struct class_device *cdev, char *buf) | |
514 | { | |
515 | struct c2_dev *dev = container_of(cdev, struct c2_dev, ibdev.class_dev); | |
516 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
517 | return sprintf(buf, "%x.%x.%x\n", | |
518 | (int) (dev->props.fw_ver >> 32), | |
519 | (int) (dev->props.fw_ver >> 16) & 0xffff, | |
520 | (int) (dev->props.fw_ver & 0xffff)); | |
521 | } | |
522 | ||
523 | static ssize_t show_hca(struct class_device *cdev, char *buf) | |
524 | { | |
525 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
526 | return sprintf(buf, "AMSO1100\n"); | |
527 | } | |
528 | ||
529 | static ssize_t show_board(struct class_device *cdev, char *buf) | |
530 | { | |
531 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
532 | return sprintf(buf, "%.*s\n", 32, "AMSO1100 Board ID"); | |
533 | } | |
534 | ||
535 | static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); | |
536 | static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
537 | static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
538 | static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
539 | ||
540 | static struct class_device_attribute *c2_class_attributes[] = { | |
541 | &class_device_attr_hw_rev, | |
542 | &class_device_attr_fw_ver, | |
543 | &class_device_attr_hca_type, | |
544 | &class_device_attr_board_id | |
545 | }; | |
546 | ||
547 | static int c2_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
548 | int attr_mask, struct ib_udata *udata) | |
549 | { | |
550 | int err; | |
551 | ||
552 | err = | |
553 | c2_qp_modify(to_c2dev(ibqp->device), to_c2qp(ibqp), attr, | |
554 | attr_mask); | |
555 | ||
556 | return err; | |
557 | } | |
558 | ||
559 | static int c2_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
560 | { | |
561 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
562 | return -ENOSYS; | |
563 | } | |
564 | ||
565 | static int c2_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
566 | { | |
567 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
568 | return -ENOSYS; | |
569 | } | |
570 | ||
571 | static int c2_process_mad(struct ib_device *ibdev, | |
572 | int mad_flags, | |
573 | u8 port_num, | |
574 | struct ib_wc *in_wc, | |
575 | struct ib_grh *in_grh, | |
576 | struct ib_mad *in_mad, struct ib_mad *out_mad) | |
577 | { | |
578 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
579 | return -ENOSYS; | |
580 | } | |
581 | ||
582 | static int c2_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) | |
583 | { | |
584 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
585 | ||
586 | /* Request a connection */ | |
587 | return c2_llp_connect(cm_id, iw_param); | |
588 | } | |
589 | ||
590 | static int c2_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) | |
591 | { | |
592 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
593 | ||
594 | /* Accept the new connection */ | |
595 | return c2_llp_accept(cm_id, iw_param); | |
596 | } | |
597 | ||
598 | static int c2_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len) | |
599 | { | |
600 | int err; | |
601 | ||
602 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
603 | ||
604 | err = c2_llp_reject(cm_id, pdata, pdata_len); | |
605 | return err; | |
606 | } | |
607 | ||
608 | static int c2_service_create(struct iw_cm_id *cm_id, int backlog) | |
609 | { | |
610 | int err; | |
611 | ||
612 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
613 | err = c2_llp_service_create(cm_id, backlog); | |
614 | pr_debug("%s:%u err=%d\n", | |
615 | __FUNCTION__, __LINE__, | |
616 | err); | |
617 | return err; | |
618 | } | |
619 | ||
620 | static int c2_service_destroy(struct iw_cm_id *cm_id) | |
621 | { | |
622 | int err; | |
623 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
624 | ||
625 | err = c2_llp_service_destroy(cm_id); | |
626 | ||
627 | return err; | |
628 | } | |
629 | ||
630 | static int c2_pseudo_up(struct net_device *netdev) | |
631 | { | |
632 | struct in_device *ind; | |
633 | struct c2_dev *c2dev = netdev->priv; | |
634 | ||
635 | ind = in_dev_get(netdev); | |
636 | if (!ind) | |
637 | return 0; | |
638 | ||
639 | pr_debug("adding...\n"); | |
640 | for_ifa(ind) { | |
641 | #ifdef DEBUG | |
642 | u8 *ip = (u8 *) & ifa->ifa_address; | |
643 | ||
644 | pr_debug("%s: %d.%d.%d.%d\n", | |
645 | ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]); | |
646 | #endif | |
647 | c2_add_addr(c2dev, ifa->ifa_address, ifa->ifa_mask); | |
648 | } | |
649 | endfor_ifa(ind); | |
650 | in_dev_put(ind); | |
651 | ||
652 | return 0; | |
653 | } | |
654 | ||
655 | static int c2_pseudo_down(struct net_device *netdev) | |
656 | { | |
657 | struct in_device *ind; | |
658 | struct c2_dev *c2dev = netdev->priv; | |
659 | ||
660 | ind = in_dev_get(netdev); | |
661 | if (!ind) | |
662 | return 0; | |
663 | ||
664 | pr_debug("deleting...\n"); | |
665 | for_ifa(ind) { | |
666 | #ifdef DEBUG | |
667 | u8 *ip = (u8 *) & ifa->ifa_address; | |
668 | ||
669 | pr_debug("%s: %d.%d.%d.%d\n", | |
670 | ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]); | |
671 | #endif | |
672 | c2_del_addr(c2dev, ifa->ifa_address, ifa->ifa_mask); | |
673 | } | |
674 | endfor_ifa(ind); | |
675 | in_dev_put(ind); | |
676 | ||
677 | return 0; | |
678 | } | |
679 | ||
680 | static int c2_pseudo_xmit_frame(struct sk_buff *skb, struct net_device *netdev) | |
681 | { | |
682 | kfree_skb(skb); | |
683 | return NETDEV_TX_OK; | |
684 | } | |
685 | ||
686 | static int c2_pseudo_change_mtu(struct net_device *netdev, int new_mtu) | |
687 | { | |
688 | int ret = 0; | |
689 | ||
690 | if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) | |
691 | return -EINVAL; | |
692 | ||
693 | netdev->mtu = new_mtu; | |
694 | ||
695 | /* TODO: Tell rnic about new rmda interface mtu */ | |
696 | return ret; | |
697 | } | |
698 | ||
699 | static void setup(struct net_device *netdev) | |
700 | { | |
701 | SET_MODULE_OWNER(netdev); | |
702 | netdev->open = c2_pseudo_up; | |
703 | netdev->stop = c2_pseudo_down; | |
704 | netdev->hard_start_xmit = c2_pseudo_xmit_frame; | |
705 | netdev->get_stats = NULL; | |
706 | netdev->tx_timeout = NULL; | |
707 | netdev->set_mac_address = NULL; | |
708 | netdev->change_mtu = c2_pseudo_change_mtu; | |
709 | netdev->watchdog_timeo = 0; | |
710 | netdev->type = ARPHRD_ETHER; | |
711 | netdev->mtu = 1500; | |
712 | netdev->hard_header_len = ETH_HLEN; | |
713 | netdev->addr_len = ETH_ALEN; | |
714 | netdev->tx_queue_len = 0; | |
715 | netdev->flags |= IFF_NOARP; | |
716 | return; | |
717 | } | |
718 | ||
719 | static struct net_device *c2_pseudo_netdev_init(struct c2_dev *c2dev) | |
720 | { | |
721 | char name[IFNAMSIZ]; | |
722 | struct net_device *netdev; | |
723 | ||
724 | /* change ethxxx to iwxxx */ | |
725 | strcpy(name, "iw"); | |
726 | strcat(name, &c2dev->netdev->name[3]); | |
727 | netdev = alloc_netdev(sizeof(*netdev), name, setup); | |
728 | if (!netdev) { | |
729 | printk(KERN_ERR PFX "%s - etherdev alloc failed", | |
730 | __FUNCTION__); | |
731 | return NULL; | |
732 | } | |
733 | ||
734 | netdev->priv = c2dev; | |
735 | ||
736 | SET_NETDEV_DEV(netdev, &c2dev->pcidev->dev); | |
737 | ||
738 | memcpy_fromio(netdev->dev_addr, c2dev->kva + C2_REGS_RDMA_ENADDR, 6); | |
739 | ||
740 | /* Print out the MAC address */ | |
741 | pr_debug("%s: MAC %02X:%02X:%02X:%02X:%02X:%02X\n", | |
742 | netdev->name, | |
743 | netdev->dev_addr[0], netdev->dev_addr[1], netdev->dev_addr[2], | |
744 | netdev->dev_addr[3], netdev->dev_addr[4], netdev->dev_addr[5]); | |
745 | ||
746 | #if 0 | |
747 | /* Disable network packets */ | |
748 | netif_stop_queue(netdev); | |
749 | #endif | |
750 | return netdev; | |
751 | } | |
752 | ||
753 | int c2_register_device(struct c2_dev *dev) | |
754 | { | |
755 | int ret; | |
756 | int i; | |
757 | ||
758 | /* Register pseudo network device */ | |
759 | dev->pseudo_netdev = c2_pseudo_netdev_init(dev); | |
760 | if (dev->pseudo_netdev) { | |
761 | ret = register_netdev(dev->pseudo_netdev); | |
762 | if (ret) { | |
763 | printk(KERN_ERR PFX | |
764 | "Unable to register netdev, ret = %d\n", ret); | |
765 | free_netdev(dev->pseudo_netdev); | |
766 | return ret; | |
767 | } | |
768 | } | |
769 | ||
770 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
771 | strlcpy(dev->ibdev.name, "amso%d", IB_DEVICE_NAME_MAX); | |
772 | dev->ibdev.owner = THIS_MODULE; | |
773 | dev->ibdev.uverbs_cmd_mask = | |
774 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
775 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
776 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
777 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
778 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
779 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
780 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
781 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
782 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
783 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
784 | (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | | |
785 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
786 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
787 | (1ull << IB_USER_VERBS_CMD_POLL_CQ) | | |
788 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
789 | (1ull << IB_USER_VERBS_CMD_POST_SEND) | | |
790 | (1ull << IB_USER_VERBS_CMD_POST_RECV); | |
791 | ||
792 | dev->ibdev.node_type = RDMA_NODE_RNIC; | |
793 | memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); | |
794 | memcpy(&dev->ibdev.node_guid, dev->pseudo_netdev->dev_addr, 6); | |
795 | dev->ibdev.phys_port_cnt = 1; | |
796 | dev->ibdev.dma_device = &dev->pcidev->dev; | |
797 | dev->ibdev.class_dev.dev = &dev->pcidev->dev; | |
798 | dev->ibdev.query_device = c2_query_device; | |
799 | dev->ibdev.query_port = c2_query_port; | |
800 | dev->ibdev.modify_port = c2_modify_port; | |
801 | dev->ibdev.query_pkey = c2_query_pkey; | |
802 | dev->ibdev.query_gid = c2_query_gid; | |
803 | dev->ibdev.alloc_ucontext = c2_alloc_ucontext; | |
804 | dev->ibdev.dealloc_ucontext = c2_dealloc_ucontext; | |
805 | dev->ibdev.mmap = c2_mmap_uar; | |
806 | dev->ibdev.alloc_pd = c2_alloc_pd; | |
807 | dev->ibdev.dealloc_pd = c2_dealloc_pd; | |
808 | dev->ibdev.create_ah = c2_ah_create; | |
809 | dev->ibdev.destroy_ah = c2_ah_destroy; | |
810 | dev->ibdev.create_qp = c2_create_qp; | |
811 | dev->ibdev.modify_qp = c2_modify_qp; | |
812 | dev->ibdev.destroy_qp = c2_destroy_qp; | |
813 | dev->ibdev.create_cq = c2_create_cq; | |
814 | dev->ibdev.destroy_cq = c2_destroy_cq; | |
815 | dev->ibdev.poll_cq = c2_poll_cq; | |
816 | dev->ibdev.get_dma_mr = c2_get_dma_mr; | |
817 | dev->ibdev.reg_phys_mr = c2_reg_phys_mr; | |
818 | dev->ibdev.reg_user_mr = c2_reg_user_mr; | |
819 | dev->ibdev.dereg_mr = c2_dereg_mr; | |
820 | ||
821 | dev->ibdev.alloc_fmr = NULL; | |
822 | dev->ibdev.unmap_fmr = NULL; | |
823 | dev->ibdev.dealloc_fmr = NULL; | |
824 | dev->ibdev.map_phys_fmr = NULL; | |
825 | ||
826 | dev->ibdev.attach_mcast = c2_multicast_attach; | |
827 | dev->ibdev.detach_mcast = c2_multicast_detach; | |
828 | dev->ibdev.process_mad = c2_process_mad; | |
829 | ||
830 | dev->ibdev.req_notify_cq = c2_arm_cq; | |
831 | dev->ibdev.post_send = c2_post_send; | |
832 | dev->ibdev.post_recv = c2_post_receive; | |
833 | ||
834 | dev->ibdev.iwcm = kmalloc(sizeof(*dev->ibdev.iwcm), GFP_KERNEL); | |
835 | dev->ibdev.iwcm->add_ref = c2_add_ref; | |
836 | dev->ibdev.iwcm->rem_ref = c2_rem_ref; | |
837 | dev->ibdev.iwcm->get_qp = c2_get_qp; | |
838 | dev->ibdev.iwcm->connect = c2_connect; | |
839 | dev->ibdev.iwcm->accept = c2_accept; | |
840 | dev->ibdev.iwcm->reject = c2_reject; | |
841 | dev->ibdev.iwcm->create_listen = c2_service_create; | |
842 | dev->ibdev.iwcm->destroy_listen = c2_service_destroy; | |
843 | ||
844 | ret = ib_register_device(&dev->ibdev); | |
845 | if (ret) | |
846 | return ret; | |
847 | ||
848 | for (i = 0; i < ARRAY_SIZE(c2_class_attributes); ++i) { | |
849 | ret = class_device_create_file(&dev->ibdev.class_dev, | |
850 | c2_class_attributes[i]); | |
851 | if (ret) { | |
852 | unregister_netdev(dev->pseudo_netdev); | |
853 | free_netdev(dev->pseudo_netdev); | |
854 | ib_unregister_device(&dev->ibdev); | |
855 | return ret; | |
856 | } | |
857 | } | |
858 | ||
859 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
860 | return 0; | |
861 | } | |
862 | ||
863 | void c2_unregister_device(struct c2_dev *dev) | |
864 | { | |
865 | pr_debug("%s:%u\n", __FUNCTION__, __LINE__); | |
866 | unregister_netdev(dev->pseudo_netdev); | |
867 | free_netdev(dev->pseudo_netdev); | |
868 | ib_unregister_device(&dev->ibdev); | |
869 | } |