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_dealloc_ucontext(struct ib_ucontext * context)61 static void c4iw_dealloc_ucontext(struct ib_ucontext *context)
62 {
63 struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
64 struct c4iw_dev *rhp;
65 struct c4iw_mm_entry *mm, *tmp;
66
67 pr_debug("context %p\n", context);
68 rhp = to_c4iw_dev(ucontext->ibucontext.device);
69
70 list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
71 kfree(mm);
72 c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx);
73 }
74
c4iw_alloc_ucontext(struct ib_ucontext * ucontext,struct ib_udata * udata)75 static int c4iw_alloc_ucontext(struct ib_ucontext *ucontext,
76 struct ib_udata *udata)
77 {
78 struct ib_device *ibdev = ucontext->device;
79 struct c4iw_ucontext *context = to_c4iw_ucontext(ucontext);
80 struct c4iw_dev *rhp = to_c4iw_dev(ibdev);
81 struct c4iw_alloc_ucontext_resp uresp;
82 int ret = 0;
83 struct c4iw_mm_entry *mm = NULL;
84
85 pr_debug("ibdev %p\n", ibdev);
86 c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx);
87 INIT_LIST_HEAD(&context->mmaps);
88 spin_lock_init(&context->mmap_lock);
89
90 if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) {
91 pr_err_once("Warning - downlevel libcxgb4 (non-fatal), device status page disabled\n");
92 rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED;
93 } else {
94 mm = kmalloc(sizeof(*mm), GFP_KERNEL);
95 if (!mm) {
96 ret = -ENOMEM;
97 goto err;
98 }
99
100 uresp.status_page_size = PAGE_SIZE;
101
102 spin_lock(&context->mmap_lock);
103 uresp.status_page_key = context->key;
104 context->key += PAGE_SIZE;
105 spin_unlock(&context->mmap_lock);
106
107 ret = ib_copy_to_udata(udata, &uresp,
108 sizeof(uresp) - sizeof(uresp.reserved));
109 if (ret)
110 goto err_mm;
111
112 mm->key = uresp.status_page_key;
113 mm->addr = virt_to_phys(rhp->rdev.status_page);
114 mm->len = PAGE_SIZE;
115 insert_mmap(context, mm);
116 }
117 return 0;
118 err_mm:
119 kfree(mm);
120 err:
121 return ret;
122 }
123
c4iw_mmap(struct ib_ucontext * context,struct vm_area_struct * vma)124 static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
125 {
126 int len = vma->vm_end - vma->vm_start;
127 u32 key = vma->vm_pgoff << PAGE_SHIFT;
128 struct c4iw_rdev *rdev;
129 int ret = 0;
130 struct c4iw_mm_entry *mm;
131 struct c4iw_ucontext *ucontext;
132 u64 addr;
133
134 pr_debug("pgoff 0x%lx key 0x%x len %d\n", vma->vm_pgoff,
135 key, len);
136
137 if (vma->vm_start & (PAGE_SIZE-1))
138 return -EINVAL;
139
140 rdev = &(to_c4iw_dev(context->device)->rdev);
141 ucontext = to_c4iw_ucontext(context);
142
143 mm = remove_mmap(ucontext, key, len);
144 if (!mm)
145 return -EINVAL;
146 addr = mm->addr;
147 kfree(mm);
148
149 if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) &&
150 (addr < (pci_resource_start(rdev->lldi.pdev, 0) +
151 pci_resource_len(rdev->lldi.pdev, 0)))) {
152
153 /*
154 * MA_SYNC register...
155 */
156 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
157 ret = io_remap_pfn_range(vma, vma->vm_start,
158 addr >> PAGE_SHIFT,
159 len, vma->vm_page_prot);
160 } else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) &&
161 (addr < (pci_resource_start(rdev->lldi.pdev, 2) +
162 pci_resource_len(rdev->lldi.pdev, 2)))) {
163
164 /*
165 * Map user DB or OCQP memory...
166 */
167 if (addr >= rdev->oc_mw_pa)
168 vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot);
169 else {
170 if (!is_t4(rdev->lldi.adapter_type))
171 vma->vm_page_prot =
172 t4_pgprot_wc(vma->vm_page_prot);
173 else
174 vma->vm_page_prot =
175 pgprot_noncached(vma->vm_page_prot);
176 }
177 ret = io_remap_pfn_range(vma, vma->vm_start,
178 addr >> PAGE_SHIFT,
179 len, vma->vm_page_prot);
180 } else {
181
182 /*
183 * Map WQ or CQ contig dma memory...
184 */
185 ret = remap_pfn_range(vma, vma->vm_start,
186 addr >> PAGE_SHIFT,
187 len, vma->vm_page_prot);
188 }
189
190 return ret;
191 }
192
c4iw_deallocate_pd(struct ib_pd * pd,struct ib_udata * udata)193 static void c4iw_deallocate_pd(struct ib_pd *pd, struct ib_udata *udata)
194 {
195 struct c4iw_dev *rhp;
196 struct c4iw_pd *php;
197
198 php = to_c4iw_pd(pd);
199 rhp = php->rhp;
200 pr_debug("ibpd %p pdid 0x%x\n", pd, php->pdid);
201 c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid);
202 mutex_lock(&rhp->rdev.stats.lock);
203 rhp->rdev.stats.pd.cur--;
204 mutex_unlock(&rhp->rdev.stats.lock);
205 }
206
c4iw_allocate_pd(struct ib_pd * pd,struct ib_udata * udata)207 static int c4iw_allocate_pd(struct ib_pd *pd, struct ib_udata *udata)
208 {
209 struct c4iw_pd *php = to_c4iw_pd(pd);
210 struct ib_device *ibdev = pd->device;
211 u32 pdid;
212 struct c4iw_dev *rhp;
213
214 pr_debug("ibdev %p\n", ibdev);
215 rhp = (struct c4iw_dev *) ibdev;
216 pdid = c4iw_get_resource(&rhp->rdev.resource.pdid_table);
217 if (!pdid)
218 return -EINVAL;
219
220 php->pdid = pdid;
221 php->rhp = rhp;
222 if (udata) {
223 struct c4iw_alloc_pd_resp uresp = {.pdid = php->pdid};
224
225 if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
226 c4iw_deallocate_pd(&php->ibpd, udata);
227 return -EFAULT;
228 }
229 }
230 mutex_lock(&rhp->rdev.stats.lock);
231 rhp->rdev.stats.pd.cur++;
232 if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max)
233 rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur;
234 mutex_unlock(&rhp->rdev.stats.lock);
235 pr_debug("pdid 0x%0x ptr 0x%p\n", pdid, php);
236 return 0;
237 }
238
c4iw_query_pkey(struct ib_device * ibdev,u8 port,u16 index,u16 * pkey)239 static int c4iw_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
240 u16 *pkey)
241 {
242 pr_debug("ibdev %p\n", ibdev);
243 *pkey = 0;
244 return 0;
245 }
246
c4iw_query_gid(struct ib_device * ibdev,u8 port,int index,union ib_gid * gid)247 static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index,
248 union ib_gid *gid)
249 {
250 struct c4iw_dev *dev;
251
252 pr_debug("ibdev %p, port %d, index %d, gid %p\n",
253 ibdev, port, index, gid);
254 if (!port)
255 return -EINVAL;
256 dev = to_c4iw_dev(ibdev);
257 memset(&(gid->raw[0]), 0, sizeof(gid->raw));
258 memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6);
259 return 0;
260 }
261
c4iw_query_device(struct ib_device * ibdev,struct ib_device_attr * props,struct ib_udata * uhw)262 static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
263 struct ib_udata *uhw)
264 {
265
266 struct c4iw_dev *dev;
267
268 pr_debug("ibdev %p\n", ibdev);
269
270 if (uhw->inlen || uhw->outlen)
271 return -EINVAL;
272
273 dev = to_c4iw_dev(ibdev);
274 memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
275 props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type);
276 props->fw_ver = dev->rdev.lldi.fw_vers;
277 props->device_cap_flags = dev->device_cap_flags;
278 props->page_size_cap = T4_PAGESIZE_MASK;
279 props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor;
280 props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device;
281 props->max_mr_size = T4_MAX_MR_SIZE;
282 props->max_qp = dev->rdev.lldi.vr->qp.size / 2;
283 props->max_srq = dev->rdev.lldi.vr->srq.size;
284 props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth;
285 props->max_srq_wr = dev->rdev.hw_queue.t4_max_qp_depth;
286 props->max_send_sge = min(T4_MAX_SEND_SGE, T4_MAX_WRITE_SGE);
287 props->max_recv_sge = T4_MAX_RECV_SGE;
288 props->max_srq_sge = T4_MAX_RECV_SGE;
289 props->max_sge_rd = 1;
290 props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter;
291 props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp,
292 c4iw_max_read_depth);
293 props->max_qp_init_rd_atom = props->max_qp_rd_atom;
294 props->max_cq = dev->rdev.lldi.vr->qp.size;
295 props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth;
296 props->max_mr = c4iw_num_stags(&dev->rdev);
297 props->max_pd = T4_MAX_NUM_PD;
298 props->local_ca_ack_delay = 0;
299 props->max_fast_reg_page_list_len =
300 t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl);
301
302 return 0;
303 }
304
c4iw_query_port(struct ib_device * ibdev,u8 port,struct ib_port_attr * props)305 static int c4iw_query_port(struct ib_device *ibdev, u8 port,
306 struct ib_port_attr *props)
307 {
308 pr_debug("ibdev %p\n", ibdev);
309
310 props->port_cap_flags =
311 IB_PORT_CM_SUP |
312 IB_PORT_SNMP_TUNNEL_SUP |
313 IB_PORT_REINIT_SUP |
314 IB_PORT_DEVICE_MGMT_SUP |
315 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
316 props->gid_tbl_len = 1;
317 props->pkey_tbl_len = 1;
318 props->active_width = 2;
319 props->active_speed = IB_SPEED_DDR;
320 props->max_msg_sz = -1;
321
322 return 0;
323 }
324
hw_rev_show(struct device * dev,struct device_attribute * attr,char * buf)325 static ssize_t hw_rev_show(struct device *dev,
326 struct device_attribute *attr, char *buf)
327 {
328 struct c4iw_dev *c4iw_dev =
329 rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev);
330
331 pr_debug("dev 0x%p\n", dev);
332 return sprintf(buf, "%d\n",
333 CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type));
334 }
335 static DEVICE_ATTR_RO(hw_rev);
336
hca_type_show(struct device * dev,struct device_attribute * attr,char * buf)337 static ssize_t hca_type_show(struct device *dev,
338 struct device_attribute *attr, char *buf)
339 {
340 struct c4iw_dev *c4iw_dev =
341 rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev);
342 struct ethtool_drvinfo info;
343 struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0];
344
345 pr_debug("dev 0x%p\n", dev);
346 lldev->ethtool_ops->get_drvinfo(lldev, &info);
347 return sprintf(buf, "%s\n", info.driver);
348 }
349 static DEVICE_ATTR_RO(hca_type);
350
board_id_show(struct device * dev,struct device_attribute * attr,char * buf)351 static ssize_t board_id_show(struct device *dev, struct device_attribute *attr,
352 char *buf)
353 {
354 struct c4iw_dev *c4iw_dev =
355 rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev);
356
357 pr_debug("dev 0x%p\n", dev);
358 return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor,
359 c4iw_dev->rdev.lldi.pdev->device);
360 }
361 static DEVICE_ATTR_RO(board_id);
362
363 enum counters {
364 IP4INSEGS,
365 IP4OUTSEGS,
366 IP4RETRANSSEGS,
367 IP4OUTRSTS,
368 IP6INSEGS,
369 IP6OUTSEGS,
370 IP6RETRANSSEGS,
371 IP6OUTRSTS,
372 NR_COUNTERS
373 };
374
375 static const char * const names[] = {
376 [IP4INSEGS] = "ip4InSegs",
377 [IP4OUTSEGS] = "ip4OutSegs",
378 [IP4RETRANSSEGS] = "ip4RetransSegs",
379 [IP4OUTRSTS] = "ip4OutRsts",
380 [IP6INSEGS] = "ip6InSegs",
381 [IP6OUTSEGS] = "ip6OutSegs",
382 [IP6RETRANSSEGS] = "ip6RetransSegs",
383 [IP6OUTRSTS] = "ip6OutRsts"
384 };
385
c4iw_alloc_stats(struct ib_device * ibdev,u8 port_num)386 static struct rdma_hw_stats *c4iw_alloc_stats(struct ib_device *ibdev,
387 u8 port_num)
388 {
389 BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS);
390
391 if (port_num != 0)
392 return NULL;
393
394 return rdma_alloc_hw_stats_struct(names, NR_COUNTERS,
395 RDMA_HW_STATS_DEFAULT_LIFESPAN);
396 }
397
c4iw_get_mib(struct ib_device * ibdev,struct rdma_hw_stats * stats,u8 port,int index)398 static int c4iw_get_mib(struct ib_device *ibdev,
399 struct rdma_hw_stats *stats,
400 u8 port, int index)
401 {
402 struct tp_tcp_stats v4, v6;
403 struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev);
404
405 cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6);
406 stats->value[IP4INSEGS] = v4.tcp_in_segs;
407 stats->value[IP4OUTSEGS] = v4.tcp_out_segs;
408 stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs;
409 stats->value[IP4OUTRSTS] = v4.tcp_out_rsts;
410 stats->value[IP6INSEGS] = v6.tcp_in_segs;
411 stats->value[IP6OUTSEGS] = v6.tcp_out_segs;
412 stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs;
413 stats->value[IP6OUTRSTS] = v6.tcp_out_rsts;
414
415 return stats->num_counters;
416 }
417
418 static struct attribute *c4iw_class_attributes[] = {
419 &dev_attr_hw_rev.attr,
420 &dev_attr_hca_type.attr,
421 &dev_attr_board_id.attr,
422 NULL
423 };
424
425 static const struct attribute_group c4iw_attr_group = {
426 .attrs = c4iw_class_attributes,
427 };
428
c4iw_port_immutable(struct ib_device * ibdev,u8 port_num,struct ib_port_immutable * immutable)429 static int c4iw_port_immutable(struct ib_device *ibdev, u8 port_num,
430 struct ib_port_immutable *immutable)
431 {
432 struct ib_port_attr attr;
433 int err;
434
435 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
436
437 err = ib_query_port(ibdev, port_num, &attr);
438 if (err)
439 return err;
440
441 immutable->pkey_tbl_len = attr.pkey_tbl_len;
442 immutable->gid_tbl_len = attr.gid_tbl_len;
443
444 return 0;
445 }
446
get_dev_fw_str(struct ib_device * dev,char * str)447 static void get_dev_fw_str(struct ib_device *dev, char *str)
448 {
449 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
450 ibdev);
451 pr_debug("dev 0x%p\n", dev);
452
453 snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u.%u.%u",
454 FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers),
455 FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers),
456 FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers),
457 FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers));
458 }
459
fill_res_entry(struct sk_buff * msg,struct rdma_restrack_entry * res)460 static int fill_res_entry(struct sk_buff *msg, struct rdma_restrack_entry *res)
461 {
462 return (res->type < ARRAY_SIZE(c4iw_restrack_funcs) &&
463 c4iw_restrack_funcs[res->type]) ?
464 c4iw_restrack_funcs[res->type](msg, res) : 0;
465 }
466
467 static const struct ib_device_ops c4iw_dev_ops = {
468 .owner = THIS_MODULE,
469 .driver_id = RDMA_DRIVER_CXGB4,
470 .uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION,
471
472 .alloc_hw_stats = c4iw_alloc_stats,
473 .alloc_mr = c4iw_alloc_mr,
474 .alloc_mw = c4iw_alloc_mw,
475 .alloc_pd = c4iw_allocate_pd,
476 .alloc_ucontext = c4iw_alloc_ucontext,
477 .create_cq = c4iw_create_cq,
478 .create_qp = c4iw_create_qp,
479 .create_srq = c4iw_create_srq,
480 .dealloc_mw = c4iw_dealloc_mw,
481 .dealloc_pd = c4iw_deallocate_pd,
482 .dealloc_ucontext = c4iw_dealloc_ucontext,
483 .dereg_mr = c4iw_dereg_mr,
484 .destroy_cq = c4iw_destroy_cq,
485 .destroy_qp = c4iw_destroy_qp,
486 .destroy_srq = c4iw_destroy_srq,
487 .fill_res_entry = fill_res_entry,
488 .get_dev_fw_str = get_dev_fw_str,
489 .get_dma_mr = c4iw_get_dma_mr,
490 .get_hw_stats = c4iw_get_mib,
491 .get_port_immutable = c4iw_port_immutable,
492 .iw_accept = c4iw_accept_cr,
493 .iw_add_ref = c4iw_qp_add_ref,
494 .iw_connect = c4iw_connect,
495 .iw_create_listen = c4iw_create_listen,
496 .iw_destroy_listen = c4iw_destroy_listen,
497 .iw_get_qp = c4iw_get_qp,
498 .iw_reject = c4iw_reject_cr,
499 .iw_rem_ref = c4iw_qp_rem_ref,
500 .map_mr_sg = c4iw_map_mr_sg,
501 .mmap = c4iw_mmap,
502 .modify_qp = c4iw_ib_modify_qp,
503 .modify_srq = c4iw_modify_srq,
504 .poll_cq = c4iw_poll_cq,
505 .post_recv = c4iw_post_receive,
506 .post_send = c4iw_post_send,
507 .post_srq_recv = c4iw_post_srq_recv,
508 .query_device = c4iw_query_device,
509 .query_gid = c4iw_query_gid,
510 .query_pkey = c4iw_query_pkey,
511 .query_port = c4iw_query_port,
512 .query_qp = c4iw_ib_query_qp,
513 .reg_user_mr = c4iw_reg_user_mr,
514 .req_notify_cq = c4iw_arm_cq,
515 INIT_RDMA_OBJ_SIZE(ib_pd, c4iw_pd, ibpd),
516 INIT_RDMA_OBJ_SIZE(ib_cq, c4iw_cq, ibcq),
517 INIT_RDMA_OBJ_SIZE(ib_srq, c4iw_srq, ibsrq),
518 INIT_RDMA_OBJ_SIZE(ib_ucontext, c4iw_ucontext, ibucontext),
519 };
520
set_netdevs(struct ib_device * ib_dev,struct c4iw_rdev * rdev)521 static int set_netdevs(struct ib_device *ib_dev, struct c4iw_rdev *rdev)
522 {
523 int ret;
524 int i;
525
526 for (i = 0; i < rdev->lldi.nports; i++) {
527 ret = ib_device_set_netdev(ib_dev, rdev->lldi.ports[i],
528 i + 1);
529 if (ret)
530 return ret;
531 }
532 return 0;
533 }
534
c4iw_register_device(struct work_struct * work)535 void c4iw_register_device(struct work_struct *work)
536 {
537 int ret;
538 struct uld_ctx *ctx = container_of(work, struct uld_ctx, reg_work);
539 struct c4iw_dev *dev = ctx->dev;
540
541 pr_debug("c4iw_dev %p\n", dev);
542 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
543 memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
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 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
568 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
569 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
570 dev->ibdev.node_type = RDMA_NODE_RNIC;
571 BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX);
572 memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC));
573 dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports;
574 dev->ibdev.num_comp_vectors = dev->rdev.lldi.nciq;
575 dev->ibdev.dev.parent = &dev->rdev.lldi.pdev->dev;
576
577 memcpy(dev->ibdev.iw_ifname, dev->rdev.lldi.ports[0]->name,
578 sizeof(dev->ibdev.iw_ifname));
579
580 rdma_set_device_sysfs_group(&dev->ibdev, &c4iw_attr_group);
581 ib_set_device_ops(&dev->ibdev, &c4iw_dev_ops);
582 ret = set_netdevs(&dev->ibdev, &dev->rdev);
583 if (ret)
584 goto err_dealloc_ctx;
585 ret = ib_register_device(&dev->ibdev, "cxgb4_%d");
586 if (ret)
587 goto err_dealloc_ctx;
588 return;
589
590 err_dealloc_ctx:
591 pr_err("%s - Failed registering iwarp device: %d\n",
592 pci_name(ctx->lldi.pdev), ret);
593 c4iw_dealloc(ctx);
594 return;
595 }
596
c4iw_unregister_device(struct c4iw_dev * dev)597 void c4iw_unregister_device(struct c4iw_dev *dev)
598 {
599 pr_debug("c4iw_dev %p\n", dev);
600 ib_unregister_device(&dev->ibdev);
601 return;
602 }
603
