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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> | |
d7b20045 | 52 | #include <linux/vmalloc.h> |
5a0e3ad6 | 53 | #include <linux/slab.h> |
f94b533d TT |
54 | |
55 | #include <asm/io.h> | |
56 | #include <asm/irq.h> | |
57 | #include <asm/byteorder.h> | |
58 | ||
59 | #include <rdma/ib_smi.h> | |
f7c6a7b5 | 60 | #include <rdma/ib_umem.h> |
f94b533d TT |
61 | #include <rdma/ib_user_verbs.h> |
62 | #include "c2.h" | |
63 | #include "c2_provider.h" | |
64 | #include "c2_user.h" | |
65 | ||
2528e33e MB |
66 | static int c2_query_device(struct ib_device *ibdev, struct ib_device_attr *props, |
67 | struct ib_udata *uhw) | |
f94b533d TT |
68 | { |
69 | struct c2_dev *c2dev = to_c2dev(ibdev); | |
70 | ||
33718363 | 71 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d | 72 | |
2528e33e MB |
73 | if (uhw->inlen || uhw->outlen) |
74 | return -EINVAL; | |
75 | ||
f94b533d TT |
76 | *props = c2dev->props; |
77 | return 0; | |
78 | } | |
79 | ||
80 | static int c2_query_port(struct ib_device *ibdev, | |
81 | u8 port, struct ib_port_attr *props) | |
82 | { | |
33718363 | 83 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
84 | |
85 | props->max_mtu = IB_MTU_4096; | |
86 | props->lid = 0; | |
87 | props->lmc = 0; | |
88 | props->sm_lid = 0; | |
89 | props->sm_sl = 0; | |
90 | props->state = IB_PORT_ACTIVE; | |
91 | props->phys_state = 0; | |
92 | props->port_cap_flags = | |
93 | IB_PORT_CM_SUP | | |
94 | IB_PORT_REINIT_SUP | | |
95 | IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; | |
96 | props->gid_tbl_len = 1; | |
97 | props->pkey_tbl_len = 1; | |
98 | props->qkey_viol_cntr = 0; | |
99 | props->active_width = 1; | |
2e96691c | 100 | props->active_speed = IB_SPEED_SDR; |
f94b533d TT |
101 | |
102 | return 0; | |
103 | } | |
104 | ||
f94b533d TT |
105 | static int c2_query_pkey(struct ib_device *ibdev, |
106 | u8 port, u16 index, u16 * pkey) | |
107 | { | |
33718363 | 108 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
109 | *pkey = 0; |
110 | return 0; | |
111 | } | |
112 | ||
113 | static int c2_query_gid(struct ib_device *ibdev, u8 port, | |
114 | int index, union ib_gid *gid) | |
115 | { | |
116 | struct c2_dev *c2dev = to_c2dev(ibdev); | |
117 | ||
33718363 | 118 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
119 | memset(&(gid->raw[0]), 0, sizeof(gid->raw)); |
120 | memcpy(&(gid->raw[0]), c2dev->pseudo_netdev->dev_addr, 6); | |
121 | ||
122 | return 0; | |
123 | } | |
124 | ||
125 | /* Allocate the user context data structure. This keeps track | |
126 | * of all objects associated with a particular user-mode client. | |
127 | */ | |
128 | static struct ib_ucontext *c2_alloc_ucontext(struct ib_device *ibdev, | |
129 | struct ib_udata *udata) | |
130 | { | |
131 | struct c2_ucontext *context; | |
132 | ||
33718363 | 133 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
134 | context = kmalloc(sizeof(*context), GFP_KERNEL); |
135 | if (!context) | |
136 | return ERR_PTR(-ENOMEM); | |
137 | ||
138 | return &context->ibucontext; | |
139 | } | |
140 | ||
141 | static int c2_dealloc_ucontext(struct ib_ucontext *context) | |
142 | { | |
33718363 | 143 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
144 | kfree(context); |
145 | return 0; | |
146 | } | |
147 | ||
148 | static int c2_mmap_uar(struct ib_ucontext *context, struct vm_area_struct *vma) | |
149 | { | |
33718363 | 150 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
151 | return -ENOSYS; |
152 | } | |
153 | ||
154 | static struct ib_pd *c2_alloc_pd(struct ib_device *ibdev, | |
155 | struct ib_ucontext *context, | |
156 | struct ib_udata *udata) | |
157 | { | |
158 | struct c2_pd *pd; | |
159 | int err; | |
160 | ||
33718363 | 161 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
162 | |
163 | pd = kmalloc(sizeof(*pd), GFP_KERNEL); | |
164 | if (!pd) | |
165 | return ERR_PTR(-ENOMEM); | |
166 | ||
167 | err = c2_pd_alloc(to_c2dev(ibdev), !context, pd); | |
168 | if (err) { | |
169 | kfree(pd); | |
170 | return ERR_PTR(err); | |
171 | } | |
172 | ||
173 | if (context) { | |
174 | if (ib_copy_to_udata(udata, &pd->pd_id, sizeof(__u32))) { | |
175 | c2_pd_free(to_c2dev(ibdev), pd); | |
176 | kfree(pd); | |
177 | return ERR_PTR(-EFAULT); | |
178 | } | |
179 | } | |
180 | ||
181 | return &pd->ibpd; | |
182 | } | |
183 | ||
184 | static int c2_dealloc_pd(struct ib_pd *pd) | |
185 | { | |
33718363 | 186 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
187 | c2_pd_free(to_c2dev(pd->device), to_c2pd(pd)); |
188 | kfree(pd); | |
189 | ||
190 | return 0; | |
191 | } | |
192 | ||
193 | static struct ib_ah *c2_ah_create(struct ib_pd *pd, struct ib_ah_attr *ah_attr) | |
194 | { | |
33718363 | 195 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
196 | return ERR_PTR(-ENOSYS); |
197 | } | |
198 | ||
199 | static int c2_ah_destroy(struct ib_ah *ah) | |
200 | { | |
33718363 | 201 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
202 | return -ENOSYS; |
203 | } | |
204 | ||
205 | static void c2_add_ref(struct ib_qp *ibqp) | |
206 | { | |
207 | struct c2_qp *qp; | |
208 | BUG_ON(!ibqp); | |
209 | qp = to_c2qp(ibqp); | |
210 | atomic_inc(&qp->refcount); | |
211 | } | |
212 | ||
213 | static void c2_rem_ref(struct ib_qp *ibqp) | |
214 | { | |
215 | struct c2_qp *qp; | |
216 | BUG_ON(!ibqp); | |
217 | qp = to_c2qp(ibqp); | |
218 | if (atomic_dec_and_test(&qp->refcount)) | |
219 | wake_up(&qp->wait); | |
220 | } | |
221 | ||
222 | struct ib_qp *c2_get_qp(struct ib_device *device, int qpn) | |
223 | { | |
224 | struct c2_dev* c2dev = to_c2dev(device); | |
225 | struct c2_qp *qp; | |
226 | ||
227 | qp = c2_find_qpn(c2dev, qpn); | |
228 | pr_debug("%s Returning QP=%p for QPN=%d, device=%p, refcount=%d\n", | |
33718363 | 229 | __func__, qp, qpn, device, |
f94b533d TT |
230 | (qp?atomic_read(&qp->refcount):0)); |
231 | ||
232 | return (qp?&qp->ibqp:NULL); | |
233 | } | |
234 | ||
235 | static struct ib_qp *c2_create_qp(struct ib_pd *pd, | |
236 | struct ib_qp_init_attr *init_attr, | |
237 | struct ib_udata *udata) | |
238 | { | |
239 | struct c2_qp *qp; | |
240 | int err; | |
241 | ||
33718363 | 242 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d | 243 | |
b846f25a EC |
244 | if (init_attr->create_flags) |
245 | return ERR_PTR(-EINVAL); | |
246 | ||
f94b533d TT |
247 | switch (init_attr->qp_type) { |
248 | case IB_QPT_RC: | |
249 | qp = kzalloc(sizeof(*qp), GFP_KERNEL); | |
250 | if (!qp) { | |
33718363 | 251 | pr_debug("%s: Unable to allocate QP\n", __func__); |
f94b533d TT |
252 | return ERR_PTR(-ENOMEM); |
253 | } | |
254 | spin_lock_init(&qp->lock); | |
255 | if (pd->uobject) { | |
256 | /* userspace specific */ | |
257 | } | |
258 | ||
259 | err = c2_alloc_qp(to_c2dev(pd->device), | |
260 | to_c2pd(pd), init_attr, qp); | |
261 | ||
262 | if (err && pd->uobject) { | |
263 | /* userspace specific */ | |
264 | } | |
265 | ||
266 | break; | |
267 | default: | |
33718363 | 268 | pr_debug("%s: Invalid QP type: %d\n", __func__, |
f94b533d TT |
269 | init_attr->qp_type); |
270 | return ERR_PTR(-EINVAL); | |
f94b533d TT |
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", | |
33718363 | 286 | __func__, __LINE__, ib_qp, qp->state); |
f94b533d TT |
287 | c2_free_qp(to_c2dev(ib_qp->device), qp); |
288 | kfree(qp); | |
289 | return 0; | |
290 | } | |
291 | ||
bcf4c1ea MB |
292 | static struct ib_cq *c2_create_cq(struct ib_device *ibdev, |
293 | const struct ib_cq_init_attr *attr, | |
f94b533d TT |
294 | struct ib_ucontext *context, |
295 | struct ib_udata *udata) | |
296 | { | |
bcf4c1ea | 297 | int entries = attr->cqe; |
f94b533d TT |
298 | struct c2_cq *cq; |
299 | int err; | |
300 | ||
bcf4c1ea MB |
301 | if (attr->flags) |
302 | return ERR_PTR(-EINVAL); | |
303 | ||
f94b533d TT |
304 | cq = kmalloc(sizeof(*cq), GFP_KERNEL); |
305 | if (!cq) { | |
33718363 | 306 | pr_debug("%s: Unable to allocate CQ\n", __func__); |
f94b533d TT |
307 | return ERR_PTR(-ENOMEM); |
308 | } | |
309 | ||
310 | err = c2_init_cq(to_c2dev(ibdev), entries, NULL, cq); | |
311 | if (err) { | |
33718363 | 312 | pr_debug("%s: error initializing CQ\n", __func__); |
f94b533d TT |
313 | kfree(cq); |
314 | return ERR_PTR(err); | |
315 | } | |
316 | ||
317 | return &cq->ibcq; | |
318 | } | |
319 | ||
320 | static int c2_destroy_cq(struct ib_cq *ib_cq) | |
321 | { | |
322 | struct c2_cq *cq = to_c2cq(ib_cq); | |
323 | ||
33718363 | 324 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
325 | |
326 | c2_free_cq(to_c2dev(ib_cq->device), cq); | |
327 | kfree(cq); | |
328 | ||
329 | return 0; | |
330 | } | |
331 | ||
332 | static inline u32 c2_convert_access(int acc) | |
333 | { | |
334 | return (acc & IB_ACCESS_REMOTE_WRITE ? C2_ACF_REMOTE_WRITE : 0) | | |
335 | (acc & IB_ACCESS_REMOTE_READ ? C2_ACF_REMOTE_READ : 0) | | |
336 | (acc & IB_ACCESS_LOCAL_WRITE ? C2_ACF_LOCAL_WRITE : 0) | | |
337 | C2_ACF_LOCAL_READ | C2_ACF_WINDOW_BIND; | |
338 | } | |
339 | ||
33f09219 | 340 | static struct ib_mr *c2_get_dma_mr(struct ib_pd *pd, int acc) |
f94b533d TT |
341 | { |
342 | struct c2_mr *mr; | |
343 | u64 *page_list; | |
33f09219 CH |
344 | const u32 total_len = 0xffffffff; /* AMSO1100 limit */ |
345 | int err, page_shift, pbl_depth, i; | |
346 | u64 kva = 0; | |
f94b533d | 347 | |
33f09219 | 348 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d | 349 | |
f94b533d | 350 | /* |
33f09219 | 351 | * This is a map of all phy mem...use a 32k page_shift. |
f94b533d | 352 | */ |
33f09219 CH |
353 | page_shift = PAGE_SHIFT + 3; |
354 | pbl_depth = ALIGN(total_len, BIT(page_shift)) >> page_shift; | |
f94b533d TT |
355 | |
356 | page_list = vmalloc(sizeof(u64) * pbl_depth); | |
357 | if (!page_list) { | |
358 | pr_debug("couldn't vmalloc page_list of size %zd\n", | |
359 | (sizeof(u64) * pbl_depth)); | |
360 | return ERR_PTR(-ENOMEM); | |
361 | } | |
362 | ||
33f09219 CH |
363 | for (i = 0; i < pbl_depth; i++) |
364 | page_list[i] = (i << page_shift); | |
f94b533d TT |
365 | |
366 | mr = kmalloc(sizeof(*mr), GFP_KERNEL); | |
ee30cb5b RD |
367 | if (!mr) { |
368 | vfree(page_list); | |
f94b533d | 369 | return ERR_PTR(-ENOMEM); |
ee30cb5b | 370 | } |
f94b533d | 371 | |
33f09219 | 372 | mr->pd = to_c2pd(pd); |
f7c6a7b5 | 373 | mr->umem = NULL; |
f94b533d TT |
374 | pr_debug("%s - page shift %d, pbl_depth %d, total_len %u, " |
375 | "*iova_start %llx, first pa %llx, last pa %llx\n", | |
33718363 | 376 | __func__, page_shift, pbl_depth, total_len, |
33f09219 | 377 | (unsigned long long) kva, |
6edf6023 RD |
378 | (unsigned long long) page_list[0], |
379 | (unsigned long long) page_list[pbl_depth-1]); | |
33f09219 | 380 | err = c2_nsmr_register_phys_kern(to_c2dev(pd->device), page_list, |
b49f3b23 | 381 | BIT(page_shift), pbl_depth, |
33f09219 | 382 | total_len, 0, &kva, |
f94b533d TT |
383 | c2_convert_access(acc), mr); |
384 | vfree(page_list); | |
385 | if (err) { | |
386 | kfree(mr); | |
387 | return ERR_PTR(err); | |
388 | } | |
389 | ||
390 | return &mr->ibmr; | |
391 | } | |
392 | ||
f7c6a7b5 RD |
393 | static struct ib_mr *c2_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, |
394 | u64 virt, int acc, struct ib_udata *udata) | |
f94b533d TT |
395 | { |
396 | u64 *pages; | |
397 | u64 kva = 0; | |
398 | int shift, n, len; | |
eeb8461e | 399 | int i, k, entry; |
f94b533d | 400 | int err = 0; |
eeb8461e | 401 | struct scatterlist *sg; |
f94b533d TT |
402 | struct c2_pd *c2pd = to_c2pd(pd); |
403 | struct c2_mr *c2mr; | |
404 | ||
33718363 | 405 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
406 | |
407 | c2mr = kmalloc(sizeof(*c2mr), GFP_KERNEL); | |
408 | if (!c2mr) | |
409 | return ERR_PTR(-ENOMEM); | |
410 | c2mr->pd = c2pd; | |
411 | ||
cb9fbc5c | 412 | c2mr->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0); |
f7c6a7b5 RD |
413 | if (IS_ERR(c2mr->umem)) { |
414 | err = PTR_ERR(c2mr->umem); | |
415 | kfree(c2mr); | |
416 | return ERR_PTR(err); | |
417 | } | |
418 | ||
419 | shift = ffs(c2mr->umem->page_size) - 1; | |
eeb8461e | 420 | n = c2mr->umem->nmap; |
f94b533d | 421 | |
fb1dc957 | 422 | pages = kmalloc_array(n, sizeof(u64), GFP_KERNEL); |
f94b533d TT |
423 | if (!pages) { |
424 | err = -ENOMEM; | |
425 | goto err; | |
426 | } | |
427 | ||
428 | i = 0; | |
eeb8461e YH |
429 | for_each_sg(c2mr->umem->sg_head.sgl, sg, c2mr->umem->nmap, entry) { |
430 | len = sg_dma_len(sg) >> shift; | |
431 | for (k = 0; k < len; ++k) { | |
432 | pages[i++] = | |
433 | sg_dma_address(sg) + | |
434 | (c2mr->umem->page_size * k); | |
f94b533d TT |
435 | } |
436 | } | |
437 | ||
f7c6a7b5 | 438 | kva = virt; |
f94b533d TT |
439 | err = c2_nsmr_register_phys_kern(to_c2dev(pd->device), |
440 | pages, | |
f7c6a7b5 | 441 | c2mr->umem->page_size, |
f94b533d | 442 | i, |
f7c6a7b5 | 443 | length, |
406f9e5f | 444 | ib_umem_offset(c2mr->umem), |
f94b533d TT |
445 | &kva, |
446 | c2_convert_access(acc), | |
447 | c2mr); | |
448 | kfree(pages); | |
f7c6a7b5 RD |
449 | if (err) |
450 | goto err; | |
f94b533d TT |
451 | return &c2mr->ibmr; |
452 | ||
453 | err: | |
f7c6a7b5 | 454 | ib_umem_release(c2mr->umem); |
f94b533d TT |
455 | kfree(c2mr); |
456 | return ERR_PTR(err); | |
457 | } | |
458 | ||
459 | static int c2_dereg_mr(struct ib_mr *ib_mr) | |
460 | { | |
461 | struct c2_mr *mr = to_c2mr(ib_mr); | |
462 | int err; | |
463 | ||
33718363 | 464 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
465 | |
466 | err = c2_stag_dealloc(to_c2dev(ib_mr->device), ib_mr->lkey); | |
467 | if (err) | |
468 | pr_debug("c2_stag_dealloc failed: %d\n", err); | |
f7c6a7b5 RD |
469 | else { |
470 | if (mr->umem) | |
471 | ib_umem_release(mr->umem); | |
f94b533d | 472 | kfree(mr); |
f7c6a7b5 | 473 | } |
f94b533d TT |
474 | |
475 | return err; | |
476 | } | |
477 | ||
f4e91eb4 TJ |
478 | static ssize_t show_rev(struct device *dev, struct device_attribute *attr, |
479 | char *buf) | |
f94b533d | 480 | { |
f4e91eb4 | 481 | struct c2_dev *c2dev = container_of(dev, struct c2_dev, ibdev.dev); |
33718363 | 482 | pr_debug("%s:%u\n", __func__, __LINE__); |
f4e91eb4 | 483 | return sprintf(buf, "%x\n", c2dev->props.hw_ver); |
f94b533d TT |
484 | } |
485 | ||
f4e91eb4 TJ |
486 | static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, |
487 | char *buf) | |
f94b533d | 488 | { |
f4e91eb4 | 489 | struct c2_dev *c2dev = container_of(dev, struct c2_dev, ibdev.dev); |
33718363 | 490 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d | 491 | return sprintf(buf, "%x.%x.%x\n", |
f4e91eb4 TJ |
492 | (int) (c2dev->props.fw_ver >> 32), |
493 | (int) (c2dev->props.fw_ver >> 16) & 0xffff, | |
494 | (int) (c2dev->props.fw_ver & 0xffff)); | |
f94b533d TT |
495 | } |
496 | ||
f4e91eb4 TJ |
497 | static ssize_t show_hca(struct device *dev, struct device_attribute *attr, |
498 | char *buf) | |
f94b533d | 499 | { |
33718363 | 500 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
501 | return sprintf(buf, "AMSO1100\n"); |
502 | } | |
503 | ||
f4e91eb4 TJ |
504 | static ssize_t show_board(struct device *dev, struct device_attribute *attr, |
505 | char *buf) | |
f94b533d | 506 | { |
33718363 | 507 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
508 | return sprintf(buf, "%.*s\n", 32, "AMSO1100 Board ID"); |
509 | } | |
510 | ||
f4e91eb4 TJ |
511 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
512 | static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); | |
513 | static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); | |
514 | static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); | |
f94b533d | 515 | |
f4e91eb4 TJ |
516 | static struct device_attribute *c2_dev_attributes[] = { |
517 | &dev_attr_hw_rev, | |
518 | &dev_attr_fw_ver, | |
519 | &dev_attr_hca_type, | |
520 | &dev_attr_board_id | |
f94b533d TT |
521 | }; |
522 | ||
523 | static int c2_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, | |
524 | int attr_mask, struct ib_udata *udata) | |
525 | { | |
526 | int err; | |
527 | ||
528 | err = | |
529 | c2_qp_modify(to_c2dev(ibqp->device), to_c2qp(ibqp), attr, | |
530 | attr_mask); | |
531 | ||
532 | return err; | |
533 | } | |
534 | ||
535 | static int c2_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
536 | { | |
33718363 | 537 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
538 | return -ENOSYS; |
539 | } | |
540 | ||
541 | static int c2_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) | |
542 | { | |
33718363 | 543 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
544 | return -ENOSYS; |
545 | } | |
546 | ||
547 | static int c2_process_mad(struct ib_device *ibdev, | |
548 | int mad_flags, | |
549 | u8 port_num, | |
a97e2d86 IW |
550 | const struct ib_wc *in_wc, |
551 | const struct ib_grh *in_grh, | |
4cd7c947 IW |
552 | const struct ib_mad_hdr *in_mad, |
553 | size_t in_mad_size, | |
554 | struct ib_mad_hdr *out_mad, | |
555 | size_t *out_mad_size, | |
556 | u16 *out_mad_pkey_index) | |
f94b533d | 557 | { |
33718363 | 558 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
559 | return -ENOSYS; |
560 | } | |
561 | ||
562 | static int c2_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) | |
563 | { | |
33718363 | 564 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
565 | |
566 | /* Request a connection */ | |
567 | return c2_llp_connect(cm_id, iw_param); | |
568 | } | |
569 | ||
570 | static int c2_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) | |
571 | { | |
33718363 | 572 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
573 | |
574 | /* Accept the new connection */ | |
575 | return c2_llp_accept(cm_id, iw_param); | |
576 | } | |
577 | ||
578 | static int c2_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len) | |
579 | { | |
33718363 | 580 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d | 581 | |
b629a6f6 | 582 | return c2_llp_reject(cm_id, pdata, pdata_len); |
f94b533d TT |
583 | } |
584 | ||
585 | static int c2_service_create(struct iw_cm_id *cm_id, int backlog) | |
586 | { | |
587 | int err; | |
588 | ||
33718363 | 589 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
590 | err = c2_llp_service_create(cm_id, backlog); |
591 | pr_debug("%s:%u err=%d\n", | |
33718363 | 592 | __func__, __LINE__, |
f94b533d TT |
593 | err); |
594 | return err; | |
595 | } | |
596 | ||
597 | static int c2_service_destroy(struct iw_cm_id *cm_id) | |
598 | { | |
33718363 | 599 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d | 600 | |
b629a6f6 | 601 | return c2_llp_service_destroy(cm_id); |
f94b533d TT |
602 | } |
603 | ||
604 | static int c2_pseudo_up(struct net_device *netdev) | |
605 | { | |
606 | struct in_device *ind; | |
4b40eed7 | 607 | struct c2_dev *c2dev = netdev->ml_priv; |
f94b533d TT |
608 | |
609 | ind = in_dev_get(netdev); | |
610 | if (!ind) | |
611 | return 0; | |
612 | ||
613 | pr_debug("adding...\n"); | |
614 | for_ifa(ind) { | |
615 | #ifdef DEBUG | |
616 | u8 *ip = (u8 *) & ifa->ifa_address; | |
617 | ||
618 | pr_debug("%s: %d.%d.%d.%d\n", | |
619 | ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]); | |
620 | #endif | |
621 | c2_add_addr(c2dev, ifa->ifa_address, ifa->ifa_mask); | |
622 | } | |
623 | endfor_ifa(ind); | |
624 | in_dev_put(ind); | |
625 | ||
626 | return 0; | |
627 | } | |
628 | ||
629 | static int c2_pseudo_down(struct net_device *netdev) | |
630 | { | |
631 | struct in_device *ind; | |
4b40eed7 | 632 | struct c2_dev *c2dev = netdev->ml_priv; |
f94b533d TT |
633 | |
634 | ind = in_dev_get(netdev); | |
635 | if (!ind) | |
636 | return 0; | |
637 | ||
638 | pr_debug("deleting...\n"); | |
639 | for_ifa(ind) { | |
640 | #ifdef DEBUG | |
641 | u8 *ip = (u8 *) & ifa->ifa_address; | |
642 | ||
643 | pr_debug("%s: %d.%d.%d.%d\n", | |
644 | ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]); | |
645 | #endif | |
646 | c2_del_addr(c2dev, ifa->ifa_address, ifa->ifa_mask); | |
647 | } | |
648 | endfor_ifa(ind); | |
649 | in_dev_put(ind); | |
650 | ||
651 | return 0; | |
652 | } | |
653 | ||
654 | static int c2_pseudo_xmit_frame(struct sk_buff *skb, struct net_device *netdev) | |
655 | { | |
656 | kfree_skb(skb); | |
657 | return NETDEV_TX_OK; | |
658 | } | |
659 | ||
660 | static int c2_pseudo_change_mtu(struct net_device *netdev, int new_mtu) | |
661 | { | |
f94b533d TT |
662 | if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) |
663 | return -EINVAL; | |
664 | ||
665 | netdev->mtu = new_mtu; | |
666 | ||
667 | /* TODO: Tell rnic about new rmda interface mtu */ | |
687c75dc | 668 | return 0; |
f94b533d TT |
669 | } |
670 | ||
687c75dc SH |
671 | static const struct net_device_ops c2_pseudo_netdev_ops = { |
672 | .ndo_open = c2_pseudo_up, | |
673 | .ndo_stop = c2_pseudo_down, | |
674 | .ndo_start_xmit = c2_pseudo_xmit_frame, | |
675 | .ndo_change_mtu = c2_pseudo_change_mtu, | |
676 | .ndo_validate_addr = eth_validate_addr, | |
677 | }; | |
678 | ||
f94b533d TT |
679 | static void setup(struct net_device *netdev) |
680 | { | |
687c75dc SH |
681 | netdev->netdev_ops = &c2_pseudo_netdev_ops; |
682 | ||
f94b533d TT |
683 | netdev->watchdog_timeo = 0; |
684 | netdev->type = ARPHRD_ETHER; | |
685 | netdev->mtu = 1500; | |
686 | netdev->hard_header_len = ETH_HLEN; | |
687 | netdev->addr_len = ETH_ALEN; | |
688 | netdev->tx_queue_len = 0; | |
689 | netdev->flags |= IFF_NOARP; | |
f94b533d TT |
690 | } |
691 | ||
692 | static struct net_device *c2_pseudo_netdev_init(struct c2_dev *c2dev) | |
693 | { | |
694 | char name[IFNAMSIZ]; | |
695 | struct net_device *netdev; | |
696 | ||
697 | /* change ethxxx to iwxxx */ | |
698 | strcpy(name, "iw"); | |
699 | strcat(name, &c2dev->netdev->name[3]); | |
c835a677 | 700 | netdev = alloc_netdev(0, name, NET_NAME_UNKNOWN, setup); |
f94b533d TT |
701 | if (!netdev) { |
702 | printk(KERN_ERR PFX "%s - etherdev alloc failed", | |
33718363 | 703 | __func__); |
f94b533d TT |
704 | return NULL; |
705 | } | |
706 | ||
4b40eed7 | 707 | netdev->ml_priv = c2dev; |
f94b533d TT |
708 | |
709 | SET_NETDEV_DEV(netdev, &c2dev->pcidev->dev); | |
710 | ||
711 | memcpy_fromio(netdev->dev_addr, c2dev->kva + C2_REGS_RDMA_ENADDR, 6); | |
712 | ||
713 | /* Print out the MAC address */ | |
2be60533 | 714 | pr_debug("%s: MAC %pM\n", netdev->name, netdev->dev_addr); |
f94b533d TT |
715 | |
716 | #if 0 | |
717 | /* Disable network packets */ | |
718 | netif_stop_queue(netdev); | |
719 | #endif | |
720 | return netdev; | |
721 | } | |
722 | ||
7738613e IW |
723 | static int c2_port_immutable(struct ib_device *ibdev, u8 port_num, |
724 | struct ib_port_immutable *immutable) | |
725 | { | |
726 | struct ib_port_attr attr; | |
727 | int err; | |
728 | ||
729 | err = c2_query_port(ibdev, port_num, &attr); | |
730 | if (err) | |
731 | return err; | |
732 | ||
733 | immutable->pkey_tbl_len = attr.pkey_tbl_len; | |
734 | immutable->gid_tbl_len = attr.gid_tbl_len; | |
f9b22e35 | 735 | immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; |
7738613e IW |
736 | |
737 | return 0; | |
738 | } | |
739 | ||
f94b533d TT |
740 | int c2_register_device(struct c2_dev *dev) |
741 | { | |
2ffcab6a | 742 | int ret = -ENOMEM; |
f94b533d TT |
743 | int i; |
744 | ||
745 | /* Register pseudo network device */ | |
746 | dev->pseudo_netdev = c2_pseudo_netdev_init(dev); | |
2ffcab6a | 747 | if (!dev->pseudo_netdev) |
1493ab40 | 748 | goto out; |
2ffcab6a TT |
749 | |
750 | ret = register_netdev(dev->pseudo_netdev); | |
751 | if (ret) | |
1493ab40 | 752 | goto out_free_netdev; |
f94b533d | 753 | |
33718363 | 754 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
755 | strlcpy(dev->ibdev.name, "amso%d", IB_DEVICE_NAME_MAX); |
756 | dev->ibdev.owner = THIS_MODULE; | |
757 | dev->ibdev.uverbs_cmd_mask = | |
758 | (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | | |
759 | (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | | |
760 | (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | | |
761 | (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | | |
762 | (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | | |
763 | (1ull << IB_USER_VERBS_CMD_REG_MR) | | |
764 | (1ull << IB_USER_VERBS_CMD_DEREG_MR) | | |
765 | (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | | |
766 | (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | | |
767 | (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | | |
768 | (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | | |
769 | (1ull << IB_USER_VERBS_CMD_CREATE_QP) | | |
770 | (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | | |
771 | (1ull << IB_USER_VERBS_CMD_POLL_CQ) | | |
772 | (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | | |
773 | (1ull << IB_USER_VERBS_CMD_POST_SEND) | | |
774 | (1ull << IB_USER_VERBS_CMD_POST_RECV); | |
775 | ||
776 | dev->ibdev.node_type = RDMA_NODE_RNIC; | |
777 | memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); | |
778 | memcpy(&dev->ibdev.node_guid, dev->pseudo_netdev->dev_addr, 6); | |
779 | dev->ibdev.phys_port_cnt = 1; | |
f4fd0b22 | 780 | dev->ibdev.num_comp_vectors = 1; |
f94b533d | 781 | dev->ibdev.dma_device = &dev->pcidev->dev; |
f94b533d TT |
782 | dev->ibdev.query_device = c2_query_device; |
783 | dev->ibdev.query_port = c2_query_port; | |
f94b533d TT |
784 | dev->ibdev.query_pkey = c2_query_pkey; |
785 | dev->ibdev.query_gid = c2_query_gid; | |
786 | dev->ibdev.alloc_ucontext = c2_alloc_ucontext; | |
787 | dev->ibdev.dealloc_ucontext = c2_dealloc_ucontext; | |
788 | dev->ibdev.mmap = c2_mmap_uar; | |
789 | dev->ibdev.alloc_pd = c2_alloc_pd; | |
790 | dev->ibdev.dealloc_pd = c2_dealloc_pd; | |
791 | dev->ibdev.create_ah = c2_ah_create; | |
792 | dev->ibdev.destroy_ah = c2_ah_destroy; | |
793 | dev->ibdev.create_qp = c2_create_qp; | |
794 | dev->ibdev.modify_qp = c2_modify_qp; | |
795 | dev->ibdev.destroy_qp = c2_destroy_qp; | |
796 | dev->ibdev.create_cq = c2_create_cq; | |
797 | dev->ibdev.destroy_cq = c2_destroy_cq; | |
798 | dev->ibdev.poll_cq = c2_poll_cq; | |
799 | dev->ibdev.get_dma_mr = c2_get_dma_mr; | |
f94b533d TT |
800 | dev->ibdev.reg_user_mr = c2_reg_user_mr; |
801 | dev->ibdev.dereg_mr = c2_dereg_mr; | |
7738613e | 802 | dev->ibdev.get_port_immutable = c2_port_immutable; |
f94b533d TT |
803 | |
804 | dev->ibdev.alloc_fmr = NULL; | |
805 | dev->ibdev.unmap_fmr = NULL; | |
806 | dev->ibdev.dealloc_fmr = NULL; | |
807 | dev->ibdev.map_phys_fmr = NULL; | |
808 | ||
809 | dev->ibdev.attach_mcast = c2_multicast_attach; | |
810 | dev->ibdev.detach_mcast = c2_multicast_detach; | |
811 | dev->ibdev.process_mad = c2_process_mad; | |
812 | ||
813 | dev->ibdev.req_notify_cq = c2_arm_cq; | |
814 | dev->ibdev.post_send = c2_post_send; | |
815 | dev->ibdev.post_recv = c2_post_receive; | |
816 | ||
817 | dev->ibdev.iwcm = kmalloc(sizeof(*dev->ibdev.iwcm), GFP_KERNEL); | |
1493ab40 RK |
818 | if (dev->ibdev.iwcm == NULL) { |
819 | ret = -ENOMEM; | |
820 | goto out_unregister_netdev; | |
821 | } | |
f94b533d TT |
822 | dev->ibdev.iwcm->add_ref = c2_add_ref; |
823 | dev->ibdev.iwcm->rem_ref = c2_rem_ref; | |
824 | dev->ibdev.iwcm->get_qp = c2_get_qp; | |
825 | dev->ibdev.iwcm->connect = c2_connect; | |
826 | dev->ibdev.iwcm->accept = c2_accept; | |
827 | dev->ibdev.iwcm->reject = c2_reject; | |
828 | dev->ibdev.iwcm->create_listen = c2_service_create; | |
829 | dev->ibdev.iwcm->destroy_listen = c2_service_destroy; | |
830 | ||
9a6edb60 | 831 | ret = ib_register_device(&dev->ibdev, NULL); |
f94b533d | 832 | if (ret) |
1493ab40 | 833 | goto out_free_iwcm; |
f94b533d | 834 | |
f4e91eb4 TJ |
835 | for (i = 0; i < ARRAY_SIZE(c2_dev_attributes); ++i) { |
836 | ret = device_create_file(&dev->ibdev.dev, | |
837 | c2_dev_attributes[i]); | |
2ffcab6a | 838 | if (ret) |
1493ab40 | 839 | goto out_unregister_ibdev; |
f94b533d | 840 | } |
1493ab40 | 841 | goto out; |
f94b533d | 842 | |
1493ab40 | 843 | out_unregister_ibdev: |
2ffcab6a | 844 | ib_unregister_device(&dev->ibdev); |
1493ab40 RK |
845 | out_free_iwcm: |
846 | kfree(dev->ibdev.iwcm); | |
847 | out_unregister_netdev: | |
2ffcab6a | 848 | unregister_netdev(dev->pseudo_netdev); |
1493ab40 | 849 | out_free_netdev: |
2ffcab6a | 850 | free_netdev(dev->pseudo_netdev); |
1493ab40 | 851 | out: |
33718363 | 852 | pr_debug("%s:%u ret=%d\n", __func__, __LINE__, ret); |
2ffcab6a | 853 | return ret; |
f94b533d TT |
854 | } |
855 | ||
856 | void c2_unregister_device(struct c2_dev *dev) | |
857 | { | |
33718363 | 858 | pr_debug("%s:%u\n", __func__, __LINE__); |
f94b533d TT |
859 | unregister_netdev(dev->pseudo_netdev); |
860 | free_netdev(dev->pseudo_netdev); | |
861 | ib_unregister_device(&dev->ibdev); | |
862 | } |