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
_c4iw_free_ucontext(struct kref * kref)61 void _c4iw_free_ucontext(struct kref *kref)
62 {
63 struct c4iw_ucontext *ucontext;
64 struct c4iw_dev *rhp;
65 struct c4iw_mm_entry *mm, *tmp;
66
67 ucontext = container_of(kref, struct c4iw_ucontext, kref);
68 rhp = to_c4iw_dev(ucontext->ibucontext.device);
69
70 pr_debug("ucontext %p\n", ucontext);
71 list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
72 kfree(mm);
73 c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx);
74 kfree(ucontext);
75 }
76
c4iw_dealloc_ucontext(struct ib_ucontext * context)77 static int c4iw_dealloc_ucontext(struct ib_ucontext *context)
78 {
79 struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
80
81 pr_debug("context %p\n", context);
82 c4iw_put_ucontext(ucontext);
83 return 0;
84 }
85
c4iw_alloc_ucontext(struct ib_device * ibdev,struct ib_udata * udata)86 static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev,
87 struct ib_udata *udata)
88 {
89 struct c4iw_ucontext *context;
90 struct c4iw_dev *rhp = to_c4iw_dev(ibdev);
91 struct c4iw_alloc_ucontext_resp uresp;
92 int ret = 0;
93 struct c4iw_mm_entry *mm = NULL;
94
95 pr_debug("ibdev %p\n", ibdev);
96 context = kzalloc(sizeof(*context), GFP_KERNEL);
97 if (!context) {
98 ret = -ENOMEM;
99 goto err;
100 }
101
102 c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx);
103 INIT_LIST_HEAD(&context->mmaps);
104 spin_lock_init(&context->mmap_lock);
105 kref_init(&context->kref);
106
107 if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) {
108 pr_err_once("Warning - downlevel libcxgb4 (non-fatal), device status page disabled\n");
109 rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED;
110 } else {
111 mm = kmalloc(sizeof(*mm), GFP_KERNEL);
112 if (!mm) {
113 ret = -ENOMEM;
114 goto err_free;
115 }
116
117 uresp.status_page_size = PAGE_SIZE;
118
119 spin_lock(&context->mmap_lock);
120 uresp.status_page_key = context->key;
121 context->key += PAGE_SIZE;
122 spin_unlock(&context->mmap_lock);
123
124 ret = ib_copy_to_udata(udata, &uresp,
125 sizeof(uresp) - sizeof(uresp.reserved));
126 if (ret)
127 goto err_mm;
128
129 mm->key = uresp.status_page_key;
130 mm->addr = virt_to_phys(rhp->rdev.status_page);
131 mm->len = PAGE_SIZE;
132 insert_mmap(context, mm);
133 }
134 return &context->ibucontext;
135 err_mm:
136 kfree(mm);
137 err_free:
138 kfree(context);
139 err:
140 return ERR_PTR(ret);
141 }
142
c4iw_mmap(struct ib_ucontext * context,struct vm_area_struct * vma)143 static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
144 {
145 int len = vma->vm_end - vma->vm_start;
146 u32 key = vma->vm_pgoff << PAGE_SHIFT;
147 struct c4iw_rdev *rdev;
148 int ret = 0;
149 struct c4iw_mm_entry *mm;
150 struct c4iw_ucontext *ucontext;
151 u64 addr;
152
153 pr_debug("pgoff 0x%lx key 0x%x len %d\n", vma->vm_pgoff,
154 key, len);
155
156 if (vma->vm_start & (PAGE_SIZE-1))
157 return -EINVAL;
158
159 rdev = &(to_c4iw_dev(context->device)->rdev);
160 ucontext = to_c4iw_ucontext(context);
161
162 mm = remove_mmap(ucontext, key, len);
163 if (!mm)
164 return -EINVAL;
165 addr = mm->addr;
166 kfree(mm);
167
168 if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) &&
169 (addr < (pci_resource_start(rdev->lldi.pdev, 0) +
170 pci_resource_len(rdev->lldi.pdev, 0)))) {
171
172 /*
173 * MA_SYNC register...
174 */
175 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
176 ret = io_remap_pfn_range(vma, vma->vm_start,
177 addr >> PAGE_SHIFT,
178 len, vma->vm_page_prot);
179 } else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) &&
180 (addr < (pci_resource_start(rdev->lldi.pdev, 2) +
181 pci_resource_len(rdev->lldi.pdev, 2)))) {
182
183 /*
184 * Map user DB or OCQP memory...
185 */
186 if (addr >= rdev->oc_mw_pa)
187 vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot);
188 else {
189 if (!is_t4(rdev->lldi.adapter_type))
190 vma->vm_page_prot =
191 t4_pgprot_wc(vma->vm_page_prot);
192 else
193 vma->vm_page_prot =
194 pgprot_noncached(vma->vm_page_prot);
195 }
196 ret = io_remap_pfn_range(vma, vma->vm_start,
197 addr >> PAGE_SHIFT,
198 len, vma->vm_page_prot);
199 } else {
200
201 /*
202 * Map WQ or CQ contig dma memory...
203 */
204 ret = remap_pfn_range(vma, vma->vm_start,
205 addr >> PAGE_SHIFT,
206 len, vma->vm_page_prot);
207 }
208
209 return ret;
210 }
211
c4iw_deallocate_pd(struct ib_pd * pd)212 static int c4iw_deallocate_pd(struct ib_pd *pd)
213 {
214 struct c4iw_dev *rhp;
215 struct c4iw_pd *php;
216
217 php = to_c4iw_pd(pd);
218 rhp = php->rhp;
219 pr_debug("ibpd %p pdid 0x%x\n", pd, php->pdid);
220 c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid);
221 mutex_lock(&rhp->rdev.stats.lock);
222 rhp->rdev.stats.pd.cur--;
223 mutex_unlock(&rhp->rdev.stats.lock);
224 kfree(php);
225 return 0;
226 }
227
c4iw_allocate_pd(struct ib_device * ibdev,struct ib_ucontext * context,struct ib_udata * udata)228 static struct ib_pd *c4iw_allocate_pd(struct ib_device *ibdev,
229 struct ib_ucontext *context,
230 struct ib_udata *udata)
231 {
232 struct c4iw_pd *php;
233 u32 pdid;
234 struct c4iw_dev *rhp;
235
236 pr_debug("ibdev %p\n", ibdev);
237 rhp = (struct c4iw_dev *) ibdev;
238 pdid = c4iw_get_resource(&rhp->rdev.resource.pdid_table);
239 if (!pdid)
240 return ERR_PTR(-EINVAL);
241 php = kzalloc(sizeof(*php), GFP_KERNEL);
242 if (!php) {
243 c4iw_put_resource(&rhp->rdev.resource.pdid_table, pdid);
244 return ERR_PTR(-ENOMEM);
245 }
246 php->pdid = pdid;
247 php->rhp = rhp;
248 if (context) {
249 struct c4iw_alloc_pd_resp uresp = {.pdid = php->pdid};
250
251 if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
252 c4iw_deallocate_pd(&php->ibpd);
253 return ERR_PTR(-EFAULT);
254 }
255 }
256 mutex_lock(&rhp->rdev.stats.lock);
257 rhp->rdev.stats.pd.cur++;
258 if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max)
259 rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur;
260 mutex_unlock(&rhp->rdev.stats.lock);
261 pr_debug("pdid 0x%0x ptr 0x%p\n", pdid, php);
262 return &php->ibpd;
263 }
264
c4iw_query_pkey(struct ib_device * ibdev,u8 port,u16 index,u16 * pkey)265 static int c4iw_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
266 u16 *pkey)
267 {
268 pr_debug("ibdev %p\n", ibdev);
269 *pkey = 0;
270 return 0;
271 }
272
c4iw_query_gid(struct ib_device * ibdev,u8 port,int index,union ib_gid * gid)273 static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index,
274 union ib_gid *gid)
275 {
276 struct c4iw_dev *dev;
277
278 pr_debug("ibdev %p, port %d, index %d, gid %p\n",
279 ibdev, port, index, gid);
280 if (!port)
281 return -EINVAL;
282 dev = to_c4iw_dev(ibdev);
283 memset(&(gid->raw[0]), 0, sizeof(gid->raw));
284 memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6);
285 return 0;
286 }
287
c4iw_query_device(struct ib_device * ibdev,struct ib_device_attr * props,struct ib_udata * uhw)288 static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
289 struct ib_udata *uhw)
290 {
291
292 struct c4iw_dev *dev;
293
294 pr_debug("ibdev %p\n", ibdev);
295
296 if (uhw->inlen || uhw->outlen)
297 return -EINVAL;
298
299 dev = to_c4iw_dev(ibdev);
300 memset(props, 0, sizeof *props);
301 memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
302 props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type);
303 props->fw_ver = dev->rdev.lldi.fw_vers;
304 props->device_cap_flags = dev->device_cap_flags;
305 props->page_size_cap = T4_PAGESIZE_MASK;
306 props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor;
307 props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device;
308 props->max_mr_size = T4_MAX_MR_SIZE;
309 props->max_qp = dev->rdev.lldi.vr->qp.size / 2;
310 props->max_srq = dev->rdev.lldi.vr->srq.size;
311 props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth;
312 props->max_srq_wr = dev->rdev.hw_queue.t4_max_qp_depth;
313 props->max_send_sge = min(T4_MAX_SEND_SGE, T4_MAX_WRITE_SGE);
314 props->max_recv_sge = T4_MAX_RECV_SGE;
315 props->max_srq_sge = T4_MAX_RECV_SGE;
316 props->max_sge_rd = 1;
317 props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter;
318 props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp,
319 c4iw_max_read_depth);
320 props->max_qp_init_rd_atom = props->max_qp_rd_atom;
321 props->max_cq = dev->rdev.lldi.vr->qp.size;
322 props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth;
323 props->max_mr = c4iw_num_stags(&dev->rdev);
324 props->max_pd = T4_MAX_NUM_PD;
325 props->local_ca_ack_delay = 0;
326 props->max_fast_reg_page_list_len =
327 t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl);
328
329 return 0;
330 }
331
c4iw_query_port(struct ib_device * ibdev,u8 port,struct ib_port_attr * props)332 static int c4iw_query_port(struct ib_device *ibdev, u8 port,
333 struct ib_port_attr *props)
334 {
335 struct c4iw_dev *dev;
336 struct net_device *netdev;
337 struct in_device *inetdev;
338
339 pr_debug("ibdev %p\n", ibdev);
340
341 dev = to_c4iw_dev(ibdev);
342 netdev = dev->rdev.lldi.ports[port-1];
343 /* props being zeroed by the caller, avoid zeroing it here */
344 props->max_mtu = IB_MTU_4096;
345 props->active_mtu = ib_mtu_int_to_enum(netdev->mtu);
346
347 if (!netif_carrier_ok(netdev))
348 props->state = IB_PORT_DOWN;
349 else {
350 inetdev = in_dev_get(netdev);
351 if (inetdev) {
352 if (inetdev->ifa_list)
353 props->state = IB_PORT_ACTIVE;
354 else
355 props->state = IB_PORT_INIT;
356 in_dev_put(inetdev);
357 } else
358 props->state = IB_PORT_INIT;
359 }
360
361 props->port_cap_flags =
362 IB_PORT_CM_SUP |
363 IB_PORT_SNMP_TUNNEL_SUP |
364 IB_PORT_REINIT_SUP |
365 IB_PORT_DEVICE_MGMT_SUP |
366 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
367 props->gid_tbl_len = 1;
368 props->pkey_tbl_len = 1;
369 props->active_width = 2;
370 props->active_speed = IB_SPEED_DDR;
371 props->max_msg_sz = -1;
372
373 return 0;
374 }
375
show_rev(struct device * dev,struct device_attribute * attr,char * buf)376 static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
377 char *buf)
378 {
379 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
380 ibdev.dev);
381 pr_debug("dev 0x%p\n", dev);
382 return sprintf(buf, "%d\n",
383 CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type));
384 }
385
show_hca(struct device * dev,struct device_attribute * attr,char * buf)386 static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
387 char *buf)
388 {
389 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
390 ibdev.dev);
391 struct ethtool_drvinfo info;
392 struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0];
393
394 pr_debug("dev 0x%p\n", dev);
395 lldev->ethtool_ops->get_drvinfo(lldev, &info);
396 return sprintf(buf, "%s\n", info.driver);
397 }
398
show_board(struct device * dev,struct device_attribute * attr,char * buf)399 static ssize_t show_board(struct device *dev, struct device_attribute *attr,
400 char *buf)
401 {
402 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
403 ibdev.dev);
404 pr_debug("dev 0x%p\n", dev);
405 return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor,
406 c4iw_dev->rdev.lldi.pdev->device);
407 }
408
409 enum counters {
410 IP4INSEGS,
411 IP4OUTSEGS,
412 IP4RETRANSSEGS,
413 IP4OUTRSTS,
414 IP6INSEGS,
415 IP6OUTSEGS,
416 IP6RETRANSSEGS,
417 IP6OUTRSTS,
418 NR_COUNTERS
419 };
420
421 static const char * const names[] = {
422 [IP4INSEGS] = "ip4InSegs",
423 [IP4OUTSEGS] = "ip4OutSegs",
424 [IP4RETRANSSEGS] = "ip4RetransSegs",
425 [IP4OUTRSTS] = "ip4OutRsts",
426 [IP6INSEGS] = "ip6InSegs",
427 [IP6OUTSEGS] = "ip6OutSegs",
428 [IP6RETRANSSEGS] = "ip6RetransSegs",
429 [IP6OUTRSTS] = "ip6OutRsts"
430 };
431
c4iw_alloc_stats(struct ib_device * ibdev,u8 port_num)432 static struct rdma_hw_stats *c4iw_alloc_stats(struct ib_device *ibdev,
433 u8 port_num)
434 {
435 BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS);
436
437 if (port_num != 0)
438 return NULL;
439
440 return rdma_alloc_hw_stats_struct(names, NR_COUNTERS,
441 RDMA_HW_STATS_DEFAULT_LIFESPAN);
442 }
443
c4iw_get_mib(struct ib_device * ibdev,struct rdma_hw_stats * stats,u8 port,int index)444 static int c4iw_get_mib(struct ib_device *ibdev,
445 struct rdma_hw_stats *stats,
446 u8 port, int index)
447 {
448 struct tp_tcp_stats v4, v6;
449 struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev);
450
451 cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6);
452 stats->value[IP4INSEGS] = v4.tcp_in_segs;
453 stats->value[IP4OUTSEGS] = v4.tcp_out_segs;
454 stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs;
455 stats->value[IP4OUTRSTS] = v4.tcp_out_rsts;
456 stats->value[IP6INSEGS] = v6.tcp_in_segs;
457 stats->value[IP6OUTSEGS] = v6.tcp_out_segs;
458 stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs;
459 stats->value[IP6OUTRSTS] = v6.tcp_out_rsts;
460
461 return stats->num_counters;
462 }
463
464 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
465 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
466 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
467
468 static struct device_attribute *c4iw_class_attributes[] = {
469 &dev_attr_hw_rev,
470 &dev_attr_hca_type,
471 &dev_attr_board_id,
472 };
473
c4iw_port_immutable(struct ib_device * ibdev,u8 port_num,struct ib_port_immutable * immutable)474 static int c4iw_port_immutable(struct ib_device *ibdev, u8 port_num,
475 struct ib_port_immutable *immutable)
476 {
477 struct ib_port_attr attr;
478 int err;
479
480 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
481
482 err = ib_query_port(ibdev, port_num, &attr);
483 if (err)
484 return err;
485
486 immutable->pkey_tbl_len = attr.pkey_tbl_len;
487 immutable->gid_tbl_len = attr.gid_tbl_len;
488
489 return 0;
490 }
491
get_dev_fw_str(struct ib_device * dev,char * str)492 static void get_dev_fw_str(struct ib_device *dev, char *str)
493 {
494 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
495 ibdev);
496 pr_debug("dev 0x%p\n", dev);
497
498 snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u.%u.%u",
499 FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers),
500 FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers),
501 FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers),
502 FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers));
503 }
504
get_netdev(struct ib_device * dev,u8 port)505 static struct net_device *get_netdev(struct ib_device *dev, u8 port)
506 {
507 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, ibdev);
508 struct c4iw_rdev *rdev = &c4iw_dev->rdev;
509 struct net_device *ndev;
510
511 if (!port || port > rdev->lldi.nports)
512 return NULL;
513
514 rcu_read_lock();
515 ndev = rdev->lldi.ports[port - 1];
516 if (ndev)
517 dev_hold(ndev);
518 rcu_read_unlock();
519
520 return ndev;
521 }
522
fill_res_entry(struct sk_buff * msg,struct rdma_restrack_entry * res)523 static int fill_res_entry(struct sk_buff *msg, struct rdma_restrack_entry *res)
524 {
525 return (res->type < ARRAY_SIZE(c4iw_restrack_funcs) &&
526 c4iw_restrack_funcs[res->type]) ?
527 c4iw_restrack_funcs[res->type](msg, res) : 0;
528 }
529
c4iw_register_device(struct work_struct * work)530 void c4iw_register_device(struct work_struct *work)
531 {
532 int ret;
533 int i;
534 struct uld_ctx *ctx = container_of(work, struct uld_ctx, reg_work);
535 struct c4iw_dev *dev = ctx->dev;
536
537 pr_debug("c4iw_dev %p\n", dev);
538 strlcpy(dev->ibdev.name, "cxgb4_%d", IB_DEVICE_NAME_MAX);
539 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
540 memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
541 dev->ibdev.owner = THIS_MODULE;
542 dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW;
543 if (fastreg_support)
544 dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
545 dev->ibdev.local_dma_lkey = 0;
546 dev->ibdev.uverbs_cmd_mask =
547 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
548 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
549 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
550 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
551 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
552 (1ull << IB_USER_VERBS_CMD_REG_MR) |
553 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
554 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
555 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
556 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
557 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
558 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
559 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
560 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
561 (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
562 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
563 (1ull << IB_USER_VERBS_CMD_POST_SEND) |
564 (1ull << IB_USER_VERBS_CMD_POST_RECV) |
565 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
566 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
567 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
568 dev->ibdev.node_type = RDMA_NODE_RNIC;
569 BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX);
570 memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC));
571 dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports;
572 dev->ibdev.num_comp_vectors = dev->rdev.lldi.nciq;
573 dev->ibdev.dev.parent = &dev->rdev.lldi.pdev->dev;
574 dev->ibdev.query_device = c4iw_query_device;
575 dev->ibdev.query_port = c4iw_query_port;
576 dev->ibdev.query_pkey = c4iw_query_pkey;
577 dev->ibdev.query_gid = c4iw_query_gid;
578 dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext;
579 dev->ibdev.dealloc_ucontext = c4iw_dealloc_ucontext;
580 dev->ibdev.mmap = c4iw_mmap;
581 dev->ibdev.alloc_pd = c4iw_allocate_pd;
582 dev->ibdev.dealloc_pd = c4iw_deallocate_pd;
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_srq = c4iw_create_srq;
588 dev->ibdev.modify_srq = c4iw_modify_srq;
589 dev->ibdev.destroy_srq = c4iw_destroy_srq;
590 dev->ibdev.create_cq = c4iw_create_cq;
591 dev->ibdev.destroy_cq = c4iw_destroy_cq;
592 dev->ibdev.poll_cq = c4iw_poll_cq;
593 dev->ibdev.get_dma_mr = c4iw_get_dma_mr;
594 dev->ibdev.reg_user_mr = c4iw_reg_user_mr;
595 dev->ibdev.dereg_mr = c4iw_dereg_mr;
596 dev->ibdev.alloc_mw = c4iw_alloc_mw;
597 dev->ibdev.dealloc_mw = c4iw_dealloc_mw;
598 dev->ibdev.alloc_mr = c4iw_alloc_mr;
599 dev->ibdev.map_mr_sg = c4iw_map_mr_sg;
600 dev->ibdev.req_notify_cq = c4iw_arm_cq;
601 dev->ibdev.post_send = c4iw_post_send;
602 dev->ibdev.post_recv = c4iw_post_receive;
603 dev->ibdev.post_srq_recv = c4iw_post_srq_recv;
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.get_dev_fw_str = get_dev_fw_str;
609 dev->ibdev.get_netdev = get_netdev;
610
611 dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
612 if (!dev->ibdev.iwcm) {
613 ret = -ENOMEM;
614 goto err_dealloc_ctx;
615 }
616
617 dev->ibdev.iwcm->connect = c4iw_connect;
618 dev->ibdev.iwcm->accept = c4iw_accept_cr;
619 dev->ibdev.iwcm->reject = c4iw_reject_cr;
620 dev->ibdev.iwcm->create_listen = c4iw_create_listen;
621 dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen;
622 dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref;
623 dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref;
624 dev->ibdev.iwcm->get_qp = c4iw_get_qp;
625 dev->ibdev.res.fill_res_entry = fill_res_entry;
626 memcpy(dev->ibdev.iwcm->ifname, dev->rdev.lldi.ports[0]->name,
627 sizeof(dev->ibdev.iwcm->ifname));
628
629 dev->ibdev.driver_id = RDMA_DRIVER_CXGB4;
630 ret = ib_register_device(&dev->ibdev, NULL);
631 if (ret)
632 goto err_kfree_iwcm;
633
634 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) {
635 ret = device_create_file(&dev->ibdev.dev,
636 c4iw_class_attributes[i]);
637 if (ret)
638 goto err_unregister_device;
639 }
640 return;
641 err_unregister_device:
642 ib_unregister_device(&dev->ibdev);
643 err_kfree_iwcm:
644 kfree(dev->ibdev.iwcm);
645 err_dealloc_ctx:
646 pr_err("%s - Failed registering iwarp device: %d\n",
647 pci_name(ctx->lldi.pdev), ret);
648 c4iw_dealloc(ctx);
649 return;
650 }
651
c4iw_unregister_device(struct c4iw_dev * dev)652 void c4iw_unregister_device(struct c4iw_dev *dev)
653 {
654 int i;
655
656 pr_debug("c4iw_dev %p\n", dev);
657 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i)
658 device_remove_file(&dev->ibdev.dev,
659 c4iw_class_attributes[i]);
660 ib_unregister_device(&dev->ibdev);
661 kfree(dev->ibdev.iwcm);
662 return;
663 }
664
