xref: /linux/drivers/infiniband/hw/cxgb4/provider.c (revision 0883c2c06fb5bcf5b9e008270827e63c09a88c1e)
1 /*
2  * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 #include <linux/module.h>
33 #include <linux/moduleparam.h>
34 #include <linux/device.h>
35 #include <linux/netdevice.h>
36 #include <linux/etherdevice.h>
37 #include <linux/delay.h>
38 #include <linux/errno.h>
39 #include <linux/list.h>
40 #include <linux/spinlock.h>
41 #include <linux/ethtool.h>
42 #include <linux/rtnetlink.h>
43 #include <linux/inetdevice.h>
44 #include <linux/io.h>
45 
46 #include <asm/irq.h>
47 #include <asm/byteorder.h>
48 
49 #include <rdma/iw_cm.h>
50 #include <rdma/ib_verbs.h>
51 #include <rdma/ib_smi.h>
52 #include <rdma/ib_umem.h>
53 #include <rdma/ib_user_verbs.h>
54 
55 #include "iw_cxgb4.h"
56 
57 static int fastreg_support = 1;
58 module_param(fastreg_support, int, 0644);
59 MODULE_PARM_DESC(fastreg_support, "Advertise fastreg support (default=1)");
60 
61 static struct ib_ah *c4iw_ah_create(struct ib_pd *pd,
62 				    struct ib_ah_attr *ah_attr)
63 {
64 	return ERR_PTR(-ENOSYS);
65 }
66 
67 static int c4iw_ah_destroy(struct ib_ah *ah)
68 {
69 	return -ENOSYS;
70 }
71 
72 static int c4iw_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
73 {
74 	return -ENOSYS;
75 }
76 
77 static int c4iw_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
78 {
79 	return -ENOSYS;
80 }
81 
82 static int c4iw_process_mad(struct ib_device *ibdev, int mad_flags,
83 			    u8 port_num, const struct ib_wc *in_wc,
84 			    const struct ib_grh *in_grh,
85 			    const struct ib_mad_hdr *in_mad,
86 			    size_t in_mad_size,
87 			    struct ib_mad_hdr *out_mad,
88 			    size_t *out_mad_size,
89 			    u16 *out_mad_pkey_index)
90 {
91 	return -ENOSYS;
92 }
93 
94 static int c4iw_dealloc_ucontext(struct ib_ucontext *context)
95 {
96 	struct c4iw_dev *rhp = to_c4iw_dev(context->device);
97 	struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
98 	struct c4iw_mm_entry *mm, *tmp;
99 
100 	PDBG("%s context %p\n", __func__, context);
101 	list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
102 		kfree(mm);
103 	c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx);
104 	kfree(ucontext);
105 	return 0;
106 }
107 
108 static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev,
109 					       struct ib_udata *udata)
110 {
111 	struct c4iw_ucontext *context;
112 	struct c4iw_dev *rhp = to_c4iw_dev(ibdev);
113 	static int warned;
114 	struct c4iw_alloc_ucontext_resp uresp;
115 	int ret = 0;
116 	struct c4iw_mm_entry *mm = NULL;
117 
118 	PDBG("%s ibdev %p\n", __func__, ibdev);
119 	context = kzalloc(sizeof(*context), GFP_KERNEL);
120 	if (!context) {
121 		ret = -ENOMEM;
122 		goto err;
123 	}
124 
125 	c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx);
126 	INIT_LIST_HEAD(&context->mmaps);
127 	spin_lock_init(&context->mmap_lock);
128 
129 	if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) {
130 		if (!warned++)
131 			pr_err(MOD "Warning - downlevel libcxgb4 (non-fatal), device status page disabled.");
132 		rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED;
133 	} else {
134 		mm = kmalloc(sizeof(*mm), GFP_KERNEL);
135 		if (!mm) {
136 			ret = -ENOMEM;
137 			goto err_free;
138 		}
139 
140 		uresp.status_page_size = PAGE_SIZE;
141 
142 		spin_lock(&context->mmap_lock);
143 		uresp.status_page_key = context->key;
144 		context->key += PAGE_SIZE;
145 		spin_unlock(&context->mmap_lock);
146 
147 		ret = ib_copy_to_udata(udata, &uresp,
148 				       sizeof(uresp) - sizeof(uresp.reserved));
149 		if (ret)
150 			goto err_mm;
151 
152 		mm->key = uresp.status_page_key;
153 		mm->addr = virt_to_phys(rhp->rdev.status_page);
154 		mm->len = PAGE_SIZE;
155 		insert_mmap(context, mm);
156 	}
157 	return &context->ibucontext;
158 err_mm:
159 	kfree(mm);
160 err_free:
161 	kfree(context);
162 err:
163 	return ERR_PTR(ret);
164 }
165 
166 static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
167 {
168 	int len = vma->vm_end - vma->vm_start;
169 	u32 key = vma->vm_pgoff << PAGE_SHIFT;
170 	struct c4iw_rdev *rdev;
171 	int ret = 0;
172 	struct c4iw_mm_entry *mm;
173 	struct c4iw_ucontext *ucontext;
174 	u64 addr;
175 
176 	PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
177 	     key, len);
178 
179 	if (vma->vm_start & (PAGE_SIZE-1))
180 		return -EINVAL;
181 
182 	rdev = &(to_c4iw_dev(context->device)->rdev);
183 	ucontext = to_c4iw_ucontext(context);
184 
185 	mm = remove_mmap(ucontext, key, len);
186 	if (!mm)
187 		return -EINVAL;
188 	addr = mm->addr;
189 	kfree(mm);
190 
191 	if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) &&
192 	    (addr < (pci_resource_start(rdev->lldi.pdev, 0) +
193 		    pci_resource_len(rdev->lldi.pdev, 0)))) {
194 
195 		/*
196 		 * MA_SYNC register...
197 		 */
198 		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
199 		ret = io_remap_pfn_range(vma, vma->vm_start,
200 					 addr >> PAGE_SHIFT,
201 					 len, vma->vm_page_prot);
202 	} else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) &&
203 		   (addr < (pci_resource_start(rdev->lldi.pdev, 2) +
204 		    pci_resource_len(rdev->lldi.pdev, 2)))) {
205 
206 		/*
207 		 * Map user DB or OCQP memory...
208 		 */
209 		if (addr >= rdev->oc_mw_pa)
210 			vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot);
211 		else {
212 			if (!is_t4(rdev->lldi.adapter_type))
213 				vma->vm_page_prot =
214 					t4_pgprot_wc(vma->vm_page_prot);
215 			else
216 				vma->vm_page_prot =
217 					pgprot_noncached(vma->vm_page_prot);
218 		}
219 		ret = io_remap_pfn_range(vma, vma->vm_start,
220 					 addr >> PAGE_SHIFT,
221 					 len, vma->vm_page_prot);
222 	} else {
223 
224 		/*
225 		 * Map WQ or CQ contig dma memory...
226 		 */
227 		ret = remap_pfn_range(vma, vma->vm_start,
228 				      addr >> PAGE_SHIFT,
229 				      len, vma->vm_page_prot);
230 	}
231 
232 	return ret;
233 }
234 
235 static int c4iw_deallocate_pd(struct ib_pd *pd)
236 {
237 	struct c4iw_dev *rhp;
238 	struct c4iw_pd *php;
239 
240 	php = to_c4iw_pd(pd);
241 	rhp = php->rhp;
242 	PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
243 	c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid);
244 	mutex_lock(&rhp->rdev.stats.lock);
245 	rhp->rdev.stats.pd.cur--;
246 	mutex_unlock(&rhp->rdev.stats.lock);
247 	kfree(php);
248 	return 0;
249 }
250 
251 static struct ib_pd *c4iw_allocate_pd(struct ib_device *ibdev,
252 				      struct ib_ucontext *context,
253 				      struct ib_udata *udata)
254 {
255 	struct c4iw_pd *php;
256 	u32 pdid;
257 	struct c4iw_dev *rhp;
258 
259 	PDBG("%s ibdev %p\n", __func__, ibdev);
260 	rhp = (struct c4iw_dev *) ibdev;
261 	pdid =  c4iw_get_resource(&rhp->rdev.resource.pdid_table);
262 	if (!pdid)
263 		return ERR_PTR(-EINVAL);
264 	php = kzalloc(sizeof(*php), GFP_KERNEL);
265 	if (!php) {
266 		c4iw_put_resource(&rhp->rdev.resource.pdid_table, pdid);
267 		return ERR_PTR(-ENOMEM);
268 	}
269 	php->pdid = pdid;
270 	php->rhp = rhp;
271 	if (context) {
272 		if (ib_copy_to_udata(udata, &php->pdid, sizeof(u32))) {
273 			c4iw_deallocate_pd(&php->ibpd);
274 			return ERR_PTR(-EFAULT);
275 		}
276 	}
277 	mutex_lock(&rhp->rdev.stats.lock);
278 	rhp->rdev.stats.pd.cur++;
279 	if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max)
280 		rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur;
281 	mutex_unlock(&rhp->rdev.stats.lock);
282 	PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
283 	return &php->ibpd;
284 }
285 
286 static int c4iw_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
287 			   u16 *pkey)
288 {
289 	PDBG("%s ibdev %p\n", __func__, ibdev);
290 	*pkey = 0;
291 	return 0;
292 }
293 
294 static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index,
295 			  union ib_gid *gid)
296 {
297 	struct c4iw_dev *dev;
298 
299 	PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
300 	       __func__, ibdev, port, index, gid);
301 	dev = to_c4iw_dev(ibdev);
302 	BUG_ON(port == 0);
303 	memset(&(gid->raw[0]), 0, sizeof(gid->raw));
304 	memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6);
305 	return 0;
306 }
307 
308 static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
309 			     struct ib_udata *uhw)
310 {
311 
312 	struct c4iw_dev *dev;
313 
314 	PDBG("%s ibdev %p\n", __func__, ibdev);
315 
316 	if (uhw->inlen || uhw->outlen)
317 		return -EINVAL;
318 
319 	dev = to_c4iw_dev(ibdev);
320 	memset(props, 0, sizeof *props);
321 	memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
322 	props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type);
323 	props->fw_ver = dev->rdev.lldi.fw_vers;
324 	props->device_cap_flags = dev->device_cap_flags;
325 	props->page_size_cap = T4_PAGESIZE_MASK;
326 	props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor;
327 	props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device;
328 	props->max_mr_size = T4_MAX_MR_SIZE;
329 	props->max_qp = dev->rdev.lldi.vr->qp.size / 2;
330 	props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth;
331 	props->max_sge = T4_MAX_RECV_SGE;
332 	props->max_sge_rd = 1;
333 	props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter;
334 	props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp,
335 				    c4iw_max_read_depth);
336 	props->max_qp_init_rd_atom = props->max_qp_rd_atom;
337 	props->max_cq = dev->rdev.lldi.vr->qp.size;
338 	props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth;
339 	props->max_mr = c4iw_num_stags(&dev->rdev);
340 	props->max_pd = T4_MAX_NUM_PD;
341 	props->local_ca_ack_delay = 0;
342 	props->max_fast_reg_page_list_len =
343 		t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl);
344 
345 	return 0;
346 }
347 
348 static int c4iw_query_port(struct ib_device *ibdev, u8 port,
349 			   struct ib_port_attr *props)
350 {
351 	struct c4iw_dev *dev;
352 	struct net_device *netdev;
353 	struct in_device *inetdev;
354 
355 	PDBG("%s ibdev %p\n", __func__, ibdev);
356 
357 	dev = to_c4iw_dev(ibdev);
358 	netdev = dev->rdev.lldi.ports[port-1];
359 
360 	memset(props, 0, sizeof(struct ib_port_attr));
361 	props->max_mtu = IB_MTU_4096;
362 	if (netdev->mtu >= 4096)
363 		props->active_mtu = IB_MTU_4096;
364 	else if (netdev->mtu >= 2048)
365 		props->active_mtu = IB_MTU_2048;
366 	else if (netdev->mtu >= 1024)
367 		props->active_mtu = IB_MTU_1024;
368 	else if (netdev->mtu >= 512)
369 		props->active_mtu = IB_MTU_512;
370 	else
371 		props->active_mtu = IB_MTU_256;
372 
373 	if (!netif_carrier_ok(netdev))
374 		props->state = IB_PORT_DOWN;
375 	else {
376 		inetdev = in_dev_get(netdev);
377 		if (inetdev) {
378 			if (inetdev->ifa_list)
379 				props->state = IB_PORT_ACTIVE;
380 			else
381 				props->state = IB_PORT_INIT;
382 			in_dev_put(inetdev);
383 		} else
384 			props->state = IB_PORT_INIT;
385 	}
386 
387 	props->port_cap_flags =
388 	    IB_PORT_CM_SUP |
389 	    IB_PORT_SNMP_TUNNEL_SUP |
390 	    IB_PORT_REINIT_SUP |
391 	    IB_PORT_DEVICE_MGMT_SUP |
392 	    IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
393 	props->gid_tbl_len = 1;
394 	props->pkey_tbl_len = 1;
395 	props->active_width = 2;
396 	props->active_speed = IB_SPEED_DDR;
397 	props->max_msg_sz = -1;
398 
399 	return 0;
400 }
401 
402 static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
403 			char *buf)
404 {
405 	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
406 						 ibdev.dev);
407 	PDBG("%s dev 0x%p\n", __func__, dev);
408 	return sprintf(buf, "%d\n",
409 		       CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type));
410 }
411 
412 static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr,
413 			   char *buf)
414 {
415 	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
416 						 ibdev.dev);
417 	PDBG("%s dev 0x%p\n", __func__, dev);
418 
419 	return sprintf(buf, "%u.%u.%u.%u\n",
420 			FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers),
421 			FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers),
422 			FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers),
423 			FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers));
424 }
425 
426 static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
427 			char *buf)
428 {
429 	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
430 						 ibdev.dev);
431 	struct ethtool_drvinfo info;
432 	struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0];
433 
434 	PDBG("%s dev 0x%p\n", __func__, dev);
435 	lldev->ethtool_ops->get_drvinfo(lldev, &info);
436 	return sprintf(buf, "%s\n", info.driver);
437 }
438 
439 static ssize_t show_board(struct device *dev, struct device_attribute *attr,
440 			  char *buf)
441 {
442 	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
443 						 ibdev.dev);
444 	PDBG("%s dev 0x%p\n", __func__, dev);
445 	return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor,
446 		       c4iw_dev->rdev.lldi.pdev->device);
447 }
448 
449 enum counters {
450 	IP4INSEGS,
451 	IP4OUTSEGS,
452 	IP4RETRANSSEGS,
453 	IP4OUTRSTS,
454 	IP6INSEGS,
455 	IP6OUTSEGS,
456 	IP6RETRANSSEGS,
457 	IP6OUTRSTS,
458 	NR_COUNTERS
459 };
460 
461 static const char * const names[] = {
462 	[IP4INSEGS] = "ip4InSegs",
463 	[IP4OUTSEGS] = "ip4OutSegs",
464 	[IP4RETRANSSEGS] = "ip4RetransSegs",
465 	[IP4OUTRSTS] = "ip4OutRsts",
466 	[IP6INSEGS] = "ip6InSegs",
467 	[IP6OUTSEGS] = "ip6OutSegs",
468 	[IP6RETRANSSEGS] = "ip6RetransSegs",
469 	[IP6OUTRSTS] = "ip6OutRsts"
470 };
471 
472 static struct rdma_hw_stats *c4iw_alloc_stats(struct ib_device *ibdev,
473 					      u8 port_num)
474 {
475 	BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS);
476 
477 	if (port_num != 0)
478 		return NULL;
479 
480 	return rdma_alloc_hw_stats_struct(names, NR_COUNTERS,
481 					  RDMA_HW_STATS_DEFAULT_LIFESPAN);
482 }
483 
484 static int c4iw_get_mib(struct ib_device *ibdev,
485 			struct rdma_hw_stats *stats,
486 			u8 port, int index)
487 {
488 	struct tp_tcp_stats v4, v6;
489 	struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev);
490 
491 	cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6);
492 	stats->value[IP4INSEGS] = v4.tcp_in_segs;
493 	stats->value[IP4OUTSEGS] = v4.tcp_out_segs;
494 	stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs;
495 	stats->value[IP4OUTRSTS] = v4.tcp_out_rsts;
496 	stats->value[IP6INSEGS] = v6.tcp_in_segs;
497 	stats->value[IP6OUTSEGS] = v6.tcp_out_segs;
498 	stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs;
499 	stats->value[IP6OUTRSTS] = v6.tcp_out_rsts;
500 
501 	return stats->num_counters;
502 }
503 
504 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
505 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
506 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
507 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
508 
509 static struct device_attribute *c4iw_class_attributes[] = {
510 	&dev_attr_hw_rev,
511 	&dev_attr_fw_ver,
512 	&dev_attr_hca_type,
513 	&dev_attr_board_id,
514 };
515 
516 static int c4iw_port_immutable(struct ib_device *ibdev, u8 port_num,
517 			       struct ib_port_immutable *immutable)
518 {
519 	struct ib_port_attr attr;
520 	int err;
521 
522 	err = c4iw_query_port(ibdev, port_num, &attr);
523 	if (err)
524 		return err;
525 
526 	immutable->pkey_tbl_len = attr.pkey_tbl_len;
527 	immutable->gid_tbl_len = attr.gid_tbl_len;
528 	immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
529 
530 	return 0;
531 }
532 
533 int c4iw_register_device(struct c4iw_dev *dev)
534 {
535 	int ret;
536 	int i;
537 
538 	PDBG("%s c4iw_dev %p\n", __func__, dev);
539 	BUG_ON(!dev->rdev.lldi.ports[0]);
540 	strlcpy(dev->ibdev.name, "cxgb4_%d", IB_DEVICE_NAME_MAX);
541 	memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
542 	memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
543 	dev->ibdev.owner = THIS_MODULE;
544 	dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW;
545 	if (fastreg_support)
546 		dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
547 	dev->ibdev.local_dma_lkey = 0;
548 	dev->ibdev.uverbs_cmd_mask =
549 	    (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
550 	    (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
551 	    (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
552 	    (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
553 	    (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
554 	    (1ull << IB_USER_VERBS_CMD_REG_MR) |
555 	    (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
556 	    (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
557 	    (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
558 	    (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
559 	    (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
560 	    (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
561 	    (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
562 	    (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
563 	    (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
564 	    (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
565 	    (1ull << IB_USER_VERBS_CMD_POST_SEND) |
566 	    (1ull << IB_USER_VERBS_CMD_POST_RECV);
567 	dev->ibdev.node_type = RDMA_NODE_RNIC;
568 	memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC));
569 	dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports;
570 	dev->ibdev.num_comp_vectors =  dev->rdev.lldi.nciq;
571 	dev->ibdev.dma_device = &(dev->rdev.lldi.pdev->dev);
572 	dev->ibdev.query_device = c4iw_query_device;
573 	dev->ibdev.query_port = c4iw_query_port;
574 	dev->ibdev.query_pkey = c4iw_query_pkey;
575 	dev->ibdev.query_gid = c4iw_query_gid;
576 	dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext;
577 	dev->ibdev.dealloc_ucontext = c4iw_dealloc_ucontext;
578 	dev->ibdev.mmap = c4iw_mmap;
579 	dev->ibdev.alloc_pd = c4iw_allocate_pd;
580 	dev->ibdev.dealloc_pd = c4iw_deallocate_pd;
581 	dev->ibdev.create_ah = c4iw_ah_create;
582 	dev->ibdev.destroy_ah = c4iw_ah_destroy;
583 	dev->ibdev.create_qp = c4iw_create_qp;
584 	dev->ibdev.modify_qp = c4iw_ib_modify_qp;
585 	dev->ibdev.query_qp = c4iw_ib_query_qp;
586 	dev->ibdev.destroy_qp = c4iw_destroy_qp;
587 	dev->ibdev.create_cq = c4iw_create_cq;
588 	dev->ibdev.destroy_cq = c4iw_destroy_cq;
589 	dev->ibdev.resize_cq = c4iw_resize_cq;
590 	dev->ibdev.poll_cq = c4iw_poll_cq;
591 	dev->ibdev.get_dma_mr = c4iw_get_dma_mr;
592 	dev->ibdev.reg_user_mr = c4iw_reg_user_mr;
593 	dev->ibdev.dereg_mr = c4iw_dereg_mr;
594 	dev->ibdev.alloc_mw = c4iw_alloc_mw;
595 	dev->ibdev.dealloc_mw = c4iw_dealloc_mw;
596 	dev->ibdev.alloc_mr = c4iw_alloc_mr;
597 	dev->ibdev.map_mr_sg = c4iw_map_mr_sg;
598 	dev->ibdev.attach_mcast = c4iw_multicast_attach;
599 	dev->ibdev.detach_mcast = c4iw_multicast_detach;
600 	dev->ibdev.process_mad = c4iw_process_mad;
601 	dev->ibdev.req_notify_cq = c4iw_arm_cq;
602 	dev->ibdev.post_send = c4iw_post_send;
603 	dev->ibdev.post_recv = c4iw_post_receive;
604 	dev->ibdev.alloc_hw_stats = c4iw_alloc_stats;
605 	dev->ibdev.get_hw_stats = c4iw_get_mib;
606 	dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION;
607 	dev->ibdev.get_port_immutable = c4iw_port_immutable;
608 	dev->ibdev.drain_sq = c4iw_drain_sq;
609 	dev->ibdev.drain_rq = c4iw_drain_rq;
610 
611 	dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
612 	if (!dev->ibdev.iwcm)
613 		return -ENOMEM;
614 
615 	dev->ibdev.iwcm->connect = c4iw_connect;
616 	dev->ibdev.iwcm->accept = c4iw_accept_cr;
617 	dev->ibdev.iwcm->reject = c4iw_reject_cr;
618 	dev->ibdev.iwcm->create_listen = c4iw_create_listen;
619 	dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen;
620 	dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref;
621 	dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref;
622 	dev->ibdev.iwcm->get_qp = c4iw_get_qp;
623 	memcpy(dev->ibdev.iwcm->ifname, dev->rdev.lldi.ports[0]->name,
624 	       sizeof(dev->ibdev.iwcm->ifname));
625 
626 	ret = ib_register_device(&dev->ibdev, NULL);
627 	if (ret)
628 		goto bail1;
629 
630 	for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) {
631 		ret = device_create_file(&dev->ibdev.dev,
632 					 c4iw_class_attributes[i]);
633 		if (ret)
634 			goto bail2;
635 	}
636 	return 0;
637 bail2:
638 	ib_unregister_device(&dev->ibdev);
639 bail1:
640 	kfree(dev->ibdev.iwcm);
641 	return ret;
642 }
643 
644 void c4iw_unregister_device(struct c4iw_dev *dev)
645 {
646 	int i;
647 
648 	PDBG("%s c4iw_dev %p\n", __func__, dev);
649 	for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i)
650 		device_remove_file(&dev->ibdev.dev,
651 				   c4iw_class_attributes[i]);
652 	ib_unregister_device(&dev->ibdev);
653 	kfree(dev->ibdev.iwcm);
654 	return;
655 }
656