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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
57static int fastreg_support = 1;
58module_param(fastreg_support, int, 0644);
59MODULE_PARM_DESC(fastreg_support, "Advertise fastreg support (default=1)");
60
61static struct ib_ah *c4iw_ah_create(struct ib_pd *pd,
62 struct rdma_ah_attr *ah_attr,
63 struct ib_udata *udata)
64
65{
66 return ERR_PTR(-ENOSYS);
67}
68
69static int c4iw_ah_destroy(struct ib_ah *ah)
70{
71 return -ENOSYS;
72}
73
74static int c4iw_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
75{
76 return -ENOSYS;
77}
78
79static int c4iw_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
80{
81 return -ENOSYS;
82}
83
84static int c4iw_process_mad(struct ib_device *ibdev, int mad_flags,
85 u8 port_num, const struct ib_wc *in_wc,
86 const struct ib_grh *in_grh,
87 const struct ib_mad_hdr *in_mad,
88 size_t in_mad_size,
89 struct ib_mad_hdr *out_mad,
90 size_t *out_mad_size,
91 u16 *out_mad_pkey_index)
92{
93 return -ENOSYS;
94}
95
96void _c4iw_free_ucontext(struct kref *kref)
97{
98 struct c4iw_ucontext *ucontext;
99 struct c4iw_dev *rhp;
100 struct c4iw_mm_entry *mm, *tmp;
101
102 ucontext = container_of(kref, struct c4iw_ucontext, kref);
103 rhp = to_c4iw_dev(ucontext->ibucontext.device);
104
105 pr_debug("ucontext %p\n", ucontext);
106 list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
107 kfree(mm);
108 c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx);
109 kfree(ucontext);
110}
111
112static int c4iw_dealloc_ucontext(struct ib_ucontext *context)
113{
114 struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
115
116 pr_debug("context %p\n", context);
117 c4iw_put_ucontext(ucontext);
118 return 0;
119}
120
121static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev,
122 struct ib_udata *udata)
123{
124 struct c4iw_ucontext *context;
125 struct c4iw_dev *rhp = to_c4iw_dev(ibdev);
126 struct c4iw_alloc_ucontext_resp uresp;
127 int ret = 0;
128 struct c4iw_mm_entry *mm = NULL;
129
130 pr_debug("ibdev %p\n", ibdev);
131 context = kzalloc(sizeof(*context), GFP_KERNEL);
132 if (!context) {
133 ret = -ENOMEM;
134 goto err;
135 }
136
137 c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx);
138 INIT_LIST_HEAD(&context->mmaps);
139 spin_lock_init(&context->mmap_lock);
140 kref_init(&context->kref);
141
142 if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) {
143 pr_err_once("Warning - downlevel libcxgb4 (non-fatal), device status page disabled\n");
144 rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED;
145 } else {
146 mm = kmalloc(sizeof(*mm), GFP_KERNEL);
147 if (!mm) {
148 ret = -ENOMEM;
149 goto err_free;
150 }
151
152 uresp.status_page_size = PAGE_SIZE;
153
154 spin_lock(&context->mmap_lock);
155 uresp.status_page_key = context->key;
156 context->key += PAGE_SIZE;
157 spin_unlock(&context->mmap_lock);
158
159 ret = ib_copy_to_udata(udata, &uresp,
160 sizeof(uresp) - sizeof(uresp.reserved));
161 if (ret)
162 goto err_mm;
163
164 mm->key = uresp.status_page_key;
165 mm->addr = virt_to_phys(rhp->rdev.status_page);
166 mm->len = PAGE_SIZE;
167 insert_mmap(context, mm);
168 }
169 return &context->ibucontext;
170err_mm:
171 kfree(mm);
172err_free:
173 kfree(context);
174err:
175 return ERR_PTR(ret);
176}
177
178static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
179{
180 int len = vma->vm_end - vma->vm_start;
181 u32 key = vma->vm_pgoff << PAGE_SHIFT;
182 struct c4iw_rdev *rdev;
183 int ret = 0;
184 struct c4iw_mm_entry *mm;
185 struct c4iw_ucontext *ucontext;
186 u64 addr;
187
188 pr_debug("pgoff 0x%lx key 0x%x len %d\n", vma->vm_pgoff,
189 key, len);
190
191 if (vma->vm_start & (PAGE_SIZE-1))
192 return -EINVAL;
193
194 rdev = &(to_c4iw_dev(context->device)->rdev);
195 ucontext = to_c4iw_ucontext(context);
196
197 mm = remove_mmap(ucontext, key, len);
198 if (!mm)
199 return -EINVAL;
200 addr = mm->addr;
201 kfree(mm);
202
203 if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) &&
204 (addr < (pci_resource_start(rdev->lldi.pdev, 0) +
205 pci_resource_len(rdev->lldi.pdev, 0)))) {
206
207
208
209
210 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
211 ret = io_remap_pfn_range(vma, vma->vm_start,
212 addr >> PAGE_SHIFT,
213 len, vma->vm_page_prot);
214 } else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) &&
215 (addr < (pci_resource_start(rdev->lldi.pdev, 2) +
216 pci_resource_len(rdev->lldi.pdev, 2)))) {
217
218
219
220
221 if (addr >= rdev->oc_mw_pa)
222 vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot);
223 else {
224 if (!is_t4(rdev->lldi.adapter_type))
225 vma->vm_page_prot =
226 t4_pgprot_wc(vma->vm_page_prot);
227 else
228 vma->vm_page_prot =
229 pgprot_noncached(vma->vm_page_prot);
230 }
231 ret = io_remap_pfn_range(vma, vma->vm_start,
232 addr >> PAGE_SHIFT,
233 len, vma->vm_page_prot);
234 } else {
235
236
237
238
239 ret = remap_pfn_range(vma, vma->vm_start,
240 addr >> PAGE_SHIFT,
241 len, vma->vm_page_prot);
242 }
243
244 return ret;
245}
246
247static int c4iw_deallocate_pd(struct ib_pd *pd)
248{
249 struct c4iw_dev *rhp;
250 struct c4iw_pd *php;
251
252 php = to_c4iw_pd(pd);
253 rhp = php->rhp;
254 pr_debug("ibpd %p pdid 0x%x\n", pd, php->pdid);
255 c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid);
256 mutex_lock(&rhp->rdev.stats.lock);
257 rhp->rdev.stats.pd.cur--;
258 mutex_unlock(&rhp->rdev.stats.lock);
259 kfree(php);
260 return 0;
261}
262
263static struct ib_pd *c4iw_allocate_pd(struct ib_device *ibdev,
264 struct ib_ucontext *context,
265 struct ib_udata *udata)
266{
267 struct c4iw_pd *php;
268 u32 pdid;
269 struct c4iw_dev *rhp;
270
271 pr_debug("ibdev %p\n", ibdev);
272 rhp = (struct c4iw_dev *) ibdev;
273 pdid = c4iw_get_resource(&rhp->rdev.resource.pdid_table);
274 if (!pdid)
275 return ERR_PTR(-EINVAL);
276 php = kzalloc(sizeof(*php), GFP_KERNEL);
277 if (!php) {
278 c4iw_put_resource(&rhp->rdev.resource.pdid_table, pdid);
279 return ERR_PTR(-ENOMEM);
280 }
281 php->pdid = pdid;
282 php->rhp = rhp;
283 if (context) {
284 struct c4iw_alloc_pd_resp uresp = {.pdid = php->pdid};
285
286 if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
287 c4iw_deallocate_pd(&php->ibpd);
288 return ERR_PTR(-EFAULT);
289 }
290 }
291 mutex_lock(&rhp->rdev.stats.lock);
292 rhp->rdev.stats.pd.cur++;
293 if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max)
294 rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur;
295 mutex_unlock(&rhp->rdev.stats.lock);
296 pr_debug("pdid 0x%0x ptr 0x%p\n", pdid, php);
297 return &php->ibpd;
298}
299
300static int c4iw_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
301 u16 *pkey)
302{
303 pr_debug("ibdev %p\n", ibdev);
304 *pkey = 0;
305 return 0;
306}
307
308static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index,
309 union ib_gid *gid)
310{
311 struct c4iw_dev *dev;
312
313 pr_debug("ibdev %p, port %d, index %d, gid %p\n",
314 ibdev, port, index, gid);
315 if (!port)
316 return -EINVAL;
317 dev = to_c4iw_dev(ibdev);
318 memset(&(gid->raw[0]), 0, sizeof(gid->raw));
319 memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6);
320 return 0;
321}
322
323static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
324 struct ib_udata *uhw)
325{
326
327 struct c4iw_dev *dev;
328
329 pr_debug("ibdev %p\n", ibdev);
330
331 if (uhw->inlen || uhw->outlen)
332 return -EINVAL;
333
334 dev = to_c4iw_dev(ibdev);
335 memset(props, 0, sizeof *props);
336 memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
337 props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type);
338 props->fw_ver = dev->rdev.lldi.fw_vers;
339 props->device_cap_flags = dev->device_cap_flags;
340 props->page_size_cap = T4_PAGESIZE_MASK;
341 props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor;
342 props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device;
343 props->max_mr_size = T4_MAX_MR_SIZE;
344 props->max_qp = dev->rdev.lldi.vr->qp.size / 2;
345 props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth;
346 props->max_sge = T4_MAX_RECV_SGE;
347 props->max_sge_rd = 1;
348 props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter;
349 props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp,
350 c4iw_max_read_depth);
351 props->max_qp_init_rd_atom = props->max_qp_rd_atom;
352 props->max_cq = dev->rdev.lldi.vr->qp.size;
353 props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth;
354 props->max_mr = c4iw_num_stags(&dev->rdev);
355 props->max_pd = T4_MAX_NUM_PD;
356 props->local_ca_ack_delay = 0;
357 props->max_fast_reg_page_list_len =
358 t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl);
359
360 return 0;
361}
362
363static int c4iw_query_port(struct ib_device *ibdev, u8 port,
364 struct ib_port_attr *props)
365{
366 struct c4iw_dev *dev;
367 struct net_device *netdev;
368 struct in_device *inetdev;
369
370 pr_debug("ibdev %p\n", ibdev);
371
372 dev = to_c4iw_dev(ibdev);
373 netdev = dev->rdev.lldi.ports[port-1];
374
375 props->max_mtu = IB_MTU_4096;
376 props->active_mtu = ib_mtu_int_to_enum(netdev->mtu);
377
378 if (!netif_carrier_ok(netdev))
379 props->state = IB_PORT_DOWN;
380 else {
381 inetdev = in_dev_get(netdev);
382 if (inetdev) {
383 if (inetdev->ifa_list)
384 props->state = IB_PORT_ACTIVE;
385 else
386 props->state = IB_PORT_INIT;
387 in_dev_put(inetdev);
388 } else
389 props->state = IB_PORT_INIT;
390 }
391
392 props->port_cap_flags =
393 IB_PORT_CM_SUP |
394 IB_PORT_SNMP_TUNNEL_SUP |
395 IB_PORT_REINIT_SUP |
396 IB_PORT_DEVICE_MGMT_SUP |
397 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
398 props->gid_tbl_len = 1;
399 props->pkey_tbl_len = 1;
400 props->active_width = 2;
401 props->active_speed = IB_SPEED_DDR;
402 props->max_msg_sz = -1;
403
404 return 0;
405}
406
407static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
408 char *buf)
409{
410 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
411 ibdev.dev);
412 pr_debug("dev 0x%p\n", dev);
413 return sprintf(buf, "%d\n",
414 CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type));
415}
416
417static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
418 char *buf)
419{
420 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
421 ibdev.dev);
422 struct ethtool_drvinfo info;
423 struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0];
424
425 pr_debug("dev 0x%p\n", dev);
426 lldev->ethtool_ops->get_drvinfo(lldev, &info);
427 return sprintf(buf, "%s\n", info.driver);
428}
429
430static ssize_t show_board(struct device *dev, struct device_attribute *attr,
431 char *buf)
432{
433 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
434 ibdev.dev);
435 pr_debug("dev 0x%p\n", dev);
436 return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor,
437 c4iw_dev->rdev.lldi.pdev->device);
438}
439
440enum counters {
441 IP4INSEGS,
442 IP4OUTSEGS,
443 IP4RETRANSSEGS,
444 IP4OUTRSTS,
445 IP6INSEGS,
446 IP6OUTSEGS,
447 IP6RETRANSSEGS,
448 IP6OUTRSTS,
449 NR_COUNTERS
450};
451
452static const char * const names[] = {
453 [IP4INSEGS] = "ip4InSegs",
454 [IP4OUTSEGS] = "ip4OutSegs",
455 [IP4RETRANSSEGS] = "ip4RetransSegs",
456 [IP4OUTRSTS] = "ip4OutRsts",
457 [IP6INSEGS] = "ip6InSegs",
458 [IP6OUTSEGS] = "ip6OutSegs",
459 [IP6RETRANSSEGS] = "ip6RetransSegs",
460 [IP6OUTRSTS] = "ip6OutRsts"
461};
462
463static struct rdma_hw_stats *c4iw_alloc_stats(struct ib_device *ibdev,
464 u8 port_num)
465{
466 BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS);
467
468 if (port_num != 0)
469 return NULL;
470
471 return rdma_alloc_hw_stats_struct(names, NR_COUNTERS,
472 RDMA_HW_STATS_DEFAULT_LIFESPAN);
473}
474
475static int c4iw_get_mib(struct ib_device *ibdev,
476 struct rdma_hw_stats *stats,
477 u8 port, int index)
478{
479 struct tp_tcp_stats v4, v6;
480 struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev);
481
482 cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6);
483 stats->value[IP4INSEGS] = v4.tcp_in_segs;
484 stats->value[IP4OUTSEGS] = v4.tcp_out_segs;
485 stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs;
486 stats->value[IP4OUTRSTS] = v4.tcp_out_rsts;
487 stats->value[IP6INSEGS] = v6.tcp_in_segs;
488 stats->value[IP6OUTSEGS] = v6.tcp_out_segs;
489 stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs;
490 stats->value[IP6OUTRSTS] = v6.tcp_out_rsts;
491
492 return stats->num_counters;
493}
494
495static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
496static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
497static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
498
499static struct device_attribute *c4iw_class_attributes[] = {
500 &dev_attr_hw_rev,
501 &dev_attr_hca_type,
502 &dev_attr_board_id,
503};
504
505static int c4iw_port_immutable(struct ib_device *ibdev, u8 port_num,
506 struct ib_port_immutable *immutable)
507{
508 struct ib_port_attr attr;
509 int err;
510
511 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
512
513 err = ib_query_port(ibdev, port_num, &attr);
514 if (err)
515 return err;
516
517 immutable->pkey_tbl_len = attr.pkey_tbl_len;
518 immutable->gid_tbl_len = attr.gid_tbl_len;
519
520 return 0;
521}
522
523static void get_dev_fw_str(struct ib_device *dev, char *str)
524{
525 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
526 ibdev);
527 pr_debug("dev 0x%p\n", dev);
528
529 snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u.%u.%u",
530 FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers),
531 FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers),
532 FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers),
533 FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers));
534}
535
536static struct net_device *get_netdev(struct ib_device *dev, u8 port)
537{
538 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, ibdev);
539 struct c4iw_rdev *rdev = &c4iw_dev->rdev;
540 struct net_device *ndev;
541
542 if (!port || port > rdev->lldi.nports)
543 return NULL;
544
545 rcu_read_lock();
546 ndev = rdev->lldi.ports[port - 1];
547 if (ndev)
548 dev_hold(ndev);
549 rcu_read_unlock();
550
551 return ndev;
552}
553
554void c4iw_register_device(struct work_struct *work)
555{
556 int ret;
557 int i;
558 struct uld_ctx *ctx = container_of(work, struct uld_ctx, reg_work);
559 struct c4iw_dev *dev = ctx->dev;
560
561 pr_debug("c4iw_dev %p\n", dev);
562 strlcpy(dev->ibdev.name, "cxgb4_%d", IB_DEVICE_NAME_MAX);
563 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
564 memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
565 dev->ibdev.owner = THIS_MODULE;
566 dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW;
567 if (fastreg_support)
568 dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
569 dev->ibdev.local_dma_lkey = 0;
570 dev->ibdev.uverbs_cmd_mask =
571 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
572 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
573 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
574 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
575 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
576 (1ull << IB_USER_VERBS_CMD_REG_MR) |
577 (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
578 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
579 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
580 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
581 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
582 (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
583 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
584 (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
585 (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
586 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
587 (1ull << IB_USER_VERBS_CMD_POST_SEND) |
588 (1ull << IB_USER_VERBS_CMD_POST_RECV);
589 dev->ibdev.node_type = RDMA_NODE_RNIC;
590 BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX);
591 memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC));
592 dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports;
593 dev->ibdev.num_comp_vectors = dev->rdev.lldi.nciq;
594 dev->ibdev.dev.parent = &dev->rdev.lldi.pdev->dev;
595 dev->ibdev.query_device = c4iw_query_device;
596 dev->ibdev.query_port = c4iw_query_port;
597 dev->ibdev.query_pkey = c4iw_query_pkey;
598 dev->ibdev.query_gid = c4iw_query_gid;
599 dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext;
600 dev->ibdev.dealloc_ucontext = c4iw_dealloc_ucontext;
601 dev->ibdev.mmap = c4iw_mmap;
602 dev->ibdev.alloc_pd = c4iw_allocate_pd;
603 dev->ibdev.dealloc_pd = c4iw_deallocate_pd;
604 dev->ibdev.create_ah = c4iw_ah_create;
605 dev->ibdev.destroy_ah = c4iw_ah_destroy;
606 dev->ibdev.create_qp = c4iw_create_qp;
607 dev->ibdev.modify_qp = c4iw_ib_modify_qp;
608 dev->ibdev.query_qp = c4iw_ib_query_qp;
609 dev->ibdev.destroy_qp = c4iw_destroy_qp;
610 dev->ibdev.create_cq = c4iw_create_cq;
611 dev->ibdev.destroy_cq = c4iw_destroy_cq;
612 dev->ibdev.resize_cq = c4iw_resize_cq;
613 dev->ibdev.poll_cq = c4iw_poll_cq;
614 dev->ibdev.get_dma_mr = c4iw_get_dma_mr;
615 dev->ibdev.reg_user_mr = c4iw_reg_user_mr;
616 dev->ibdev.dereg_mr = c4iw_dereg_mr;
617 dev->ibdev.alloc_mw = c4iw_alloc_mw;
618 dev->ibdev.dealloc_mw = c4iw_dealloc_mw;
619 dev->ibdev.alloc_mr = c4iw_alloc_mr;
620 dev->ibdev.map_mr_sg = c4iw_map_mr_sg;
621 dev->ibdev.attach_mcast = c4iw_multicast_attach;
622 dev->ibdev.detach_mcast = c4iw_multicast_detach;
623 dev->ibdev.process_mad = c4iw_process_mad;
624 dev->ibdev.req_notify_cq = c4iw_arm_cq;
625 dev->ibdev.post_send = c4iw_post_send;
626 dev->ibdev.post_recv = c4iw_post_receive;
627 dev->ibdev.alloc_hw_stats = c4iw_alloc_stats;
628 dev->ibdev.get_hw_stats = c4iw_get_mib;
629 dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION;
630 dev->ibdev.get_port_immutable = c4iw_port_immutable;
631 dev->ibdev.get_dev_fw_str = get_dev_fw_str;
632 dev->ibdev.get_netdev = get_netdev;
633
634 dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
635 if (!dev->ibdev.iwcm) {
636 ret = -ENOMEM;
637 goto err_dealloc_ctx;
638 }
639
640 dev->ibdev.iwcm->connect = c4iw_connect;
641 dev->ibdev.iwcm->accept = c4iw_accept_cr;
642 dev->ibdev.iwcm->reject = c4iw_reject_cr;
643 dev->ibdev.iwcm->create_listen = c4iw_create_listen;
644 dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen;
645 dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref;
646 dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref;
647 dev->ibdev.iwcm->get_qp = c4iw_get_qp;
648 memcpy(dev->ibdev.iwcm->ifname, dev->rdev.lldi.ports[0]->name,
649 sizeof(dev->ibdev.iwcm->ifname));
650
651 dev->ibdev.driver_id = RDMA_DRIVER_CXGB4;
652 ret = ib_register_device(&dev->ibdev, NULL);
653 if (ret)
654 goto err_kfree_iwcm;
655
656 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) {
657 ret = device_create_file(&dev->ibdev.dev,
658 c4iw_class_attributes[i]);
659 if (ret)
660 goto err_unregister_device;
661 }
662 return;
663err_unregister_device:
664 ib_unregister_device(&dev->ibdev);
665err_kfree_iwcm:
666 kfree(dev->ibdev.iwcm);
667err_dealloc_ctx:
668 pr_err("%s - Failed registering iwarp device: %d\n",
669 pci_name(ctx->lldi.pdev), ret);
670 c4iw_dealloc(ctx);
671 return;
672}
673
674void c4iw_unregister_device(struct c4iw_dev *dev)
675{
676 int i;
677
678 pr_debug("c4iw_dev %p\n", dev);
679 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i)
680 device_remove_file(&dev->ibdev.dev,
681 c4iw_class_attributes[i]);
682 ib_unregister_device(&dev->ibdev);
683 kfree(dev->ibdev.iwcm);
684 return;
685}
686
