LinuxLists.cc - Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to allocate agent number (fwd)

2018-06-16 16:05:25

Subject: Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to allocate agent number (fwd)

ib_mad_client_id
julia

---------- Forwarded Date: Fri, 8 Jun From: kbuild test To: :::::: commit date: 6 hours ago

>> drivers/infini
# is declared as u32, so it will not be < 0 (line 382).
message ----------
2018 08:49:57 +0800
robot <[email protected]>
/email-protection#85eee7f0ece9e1c5b5b4abeaf7e2">[email protected]
<[email protected]>
v3 2/2] IB/mad: Use ID allocator routines to allocate agent
the patch! Perhaps something to improve:
WARNING on linus/master]
WARNING on v4.17]
is applied to the wrong git tree, please drop us a note to help improve the system]
://github.com/0day-ci/linux/commits/Hans-Westgaard-Ry/IB-mad-Use-ID-allocator-routines-to-allocate-agent-number/20180608-022348">https://github.com/0day-ci/linux/commits/Hans-Westgaard-Ry/IB-mad-Use-ID-allocator-routines-to-allocate-agent-number/20180608-022348
band/core/mad.c:382:5-21: WARNING: Unsigned expression compared with zero: ib_mad_client_id < 0
hub.com/0day-ci/linux/commit/74b1ba09003c9d132878734bf44f32a62bad31db">https://github.com/0day-ci/linux/commit/74b1ba09003c9d132878734bf44f32a62bad31db
href="https://github.com/0day-ci/linux">https://github.com/0day-ci/linux
3c9d132878734bf44f32a62bad31db
band/core/mad.c
2006-07-20 190
2005-04-16 191 /*
2005-04-16 192 * ib_register_mad_agent - Register to send/receive MADs
2005-04-16 193 */
2005-04-16 194 struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
2005-04-16 195 u8 port_num,
2005-04-16 196 enum ib_qp_type qp_type,
2005-04-16 197 struct ib_mad_reg_req *mad_reg_req,
2005-04-16 198 u8 rmpp_version,
2005-04-16 199 ib_mad_send_handler send_handler,
2005-04-16 200 ib_mad_recv_handler recv_handler,
2014-08-08 201 void *context,
2014-08-08 202 u32 registration_flags)
2005-04-16 203 {
2005-04-16 204 struct ib_mad_port_private *port_priv;
2005-04-16 205 struct ib_mad_agent *ret = ERR_PTR(-EINVAL);
2005-04-16 206 struct ib_mad_agent_private *mad_agent_priv;
2005-04-16 207 struct ib_mad_reg_req *reg_req = NULL;
2005-04-16 208 struct ib_mad_mgmt_class_table *class;
2005-04-16 209 struct ib_mad_mgmt_vendor_class_table *vendor;
2005-04-16 210 struct ib_mad_mgmt_vendor_class *vendor_class;
2005-04-16 211 struct ib_mad_mgmt_method_table *method;
2005-04-16 212 int ret2, qpn;
2005-04-16 213 unsigned long flags;
2005-04-16 214 u8 mgmt_class, vclass;
Westgaard Ry 2018-06-07 215 u32 ib_mad_client_id;
2005-04-16 216 /* Validate parameters */
2005-04-16 217 qpn = get_spl_qp_index(qp_type);
2014-08-08 218 if (qpn == -1) {
2014-08-08 219 dev_notice(&device->dev,
2014-08-08 220 "ib_register_mad_agent: invalid QP Type %d\n",
2014-08-08 221 qp_type);
2005-04-16 222 goto error1;
2014-08-08 223 }
2005-04-16 224
2014-08-08 225 if (rmpp_version && rmpp_version != IB_MGMT_RMPP_VERSION) {
2014-08-08 226 dev_notice(&device->dev,
2014-08-08 227 "ib_register_mad_agent: invalid RMPP Version %u\n",
2014-08-08 228 rmpp_version);
2005-07-27 229 goto error1;
2014-08-08 230 }
2005-04-16 231
2005-04-16 232 /* Validate MAD registration request if supplied */
2005-04-16 233 if (mad_reg_req) {
2014-08-08 234 if (mad_reg_req->mgmt_class_version >= MAX_MGMT_VERSION) {
2014-08-08 235 dev_notice(&device->dev,
2014-08-08 236 "ib_register_mad_agent: invalid Class Version %u\n",
2014-08-08 237 mad_reg_req->mgmt_class_version);
2005-04-16 238 goto error1;
2014-08-08 239 }
2014-08-08 240 if (!recv_handler) {
2014-08-08 241 dev_notice(&device->dev,
2014-08-08 242 "ib_register_mad_agent: no recv_handler\n");
2005-04-16 243 goto error1;
2014-08-08 244 }
2005-04-16 245 if (mad_reg_req->mgmt_class >= MAX_MGMT_CLASS) {
2005-04-16 246 /*
2005-04-16 247 * IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE is the only
2005-04-16 248 * one in this range currently allowed
2005-04-16 249 */
2005-04-16 250 if (mad_reg_req->mgmt_class !=
2014-08-08 251 IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) {
2014-08-08 252 dev_notice(&device->dev,
2014-08-08 253 "ib_register_mad_agent: Invalid Mgmt Class 0x%x\n",
2014-08-08 254 mad_reg_req->mgmt_class);
2005-04-16 255 goto error1;
2014-08-08 256 }
2005-04-16 257 } else if (mad_reg_req->mgmt_class == 0) {
2005-04-16 258 /*
2005-04-16 259 * Class 0 is reserved in IBA and is used for
2005-04-16 260 * aliasing of IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE
2005-04-16 261 */
2014-08-08 262 dev_notice(&device->dev,
2014-08-08 263 "ib_register_mad_agent: Invalid Mgmt Class 0\n");
2005-04-16 264 goto error1;
2005-04-16 265 } else if (is_vendor_class(mad_reg_req->mgmt_class)) {
2005-04-16 266 /*
2005-04-16 267 * If class is in "new" vendor range,
2005-04-16 268 * ensure supplied OUI is not zero
2005-04-16 269 */
2014-08-08 270 if (!is_vendor_oui(mad_reg_req->oui)) {
2014-08-08 271 dev_notice(&device->dev,
2014-08-08 272 "ib_register_mad_agent: No OUI specified for class 0x%x\n",
2014-08-08 273 mad_reg_req->mgmt_class);
2005-04-16 274 goto error1;
2005-04-16 275 }
2014-08-08 276 }
2006-03-28 277 /* Make sure class supplied is consistent with RMPP */
2006-04-12 278 if (!ib_is_mad_class_rmpp(mad_reg_req->mgmt_class)) {
2014-08-08 279 if (rmpp_version) {
2014-08-08 280 dev_notice(&device->dev,
2014-08-08 281 "ib_register_mad_agent: RMPP version for non-RMPP class 0x%x\n",
2014-08-08 282 mad_reg_req->mgmt_class);
2006-03-28 283 goto error1;
2006-03-28 284 }
2014-08-08 285 }
2014-08-08 286
2005-04-16 287 /* Make sure class supplied is consistent with QP type */
2005-04-16 288 if (qp_type == IB_QPT_SMI) {
2005-04-16 289 if ((mad_reg_req->mgmt_class !=
2005-04-16 290 IB_MGMT_CLASS_SUBN_LID_ROUTED) &&
2005-04-16 291 (mad_reg_req->mgmt_class !=
2014-08-08 292 IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)) {
2014-08-08 293 dev_notice(&device->dev,
2014-08-08 294 "ib_register_mad_agent: Invalid SM QP type: class 0x%x\n",
2014-08-08 295 mad_reg_req->mgmt_class);
2005-04-16 296 goto error1;
2014-08-08 297 }
2005-04-16 298 } else {
2005-04-16 299 if ((mad_reg_req->mgmt_class ==
2005-04-16 300 IB_MGMT_CLASS_SUBN_LID_ROUTED) ||
2005-04-16 301 (mad_reg_req->mgmt_class ==
2014-08-08 302 IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)) {
2014-08-08 303 dev_notice(&device->dev,
2014-08-08 304 "ib_register_mad_agent: Invalid GS QP type: class 0x%x\n",
2014-08-08 305 mad_reg_req->mgmt_class);
2005-04-16 306 goto error1;
2005-04-16 307 }
2014-08-08 308 }
2005-04-16 309 } else {
2005-04-16 310 /* No registration request supplied */
2005-04-16 311 if (!send_handler)
2005-04-16 312 goto error1;
2014-08-08 313 if (registration_flags & IB_MAD_USER_RMPP)
2014-08-08 314 goto error1;
2005-04-16 315 }
2005-04-16 316
2005-04-16 317 /* Validate device and port */
2005-04-16 318 port_priv = ib_get_mad_port(device, port_num);
2005-04-16 319 if (!port_priv) {
2017-01-19 320 dev_notice(&device->dev,
2017-01-19 321 "ib_register_mad_agent: Invalid port %d\n",
2017-01-19 322 port_num);
2005-04-16 323 ret = ERR_PTR(-ENODEV);
2005-04-16 324 goto error1;
2005-04-16 325 }
2005-04-16 326
2011-05-19 327 /* Verify the QP requested is supported. For example, Ethernet devices
2011-05-19 328 * will not have QP0 */
2011-05-19 329 if (!port_priv->qp_info[qpn].qp) {
2014-08-08 330 dev_notice(&device->dev,
2014-08-08 331 "ib_register_mad_agent: QP %d not supported\n", qpn);
2011-05-19 332 ret = ERR_PTR(-EPROTONOSUPPORT);
2011-05-19 333 goto error1;
2011-05-19 334 }
2011-05-19 335
2005-04-16 336 /* Allocate structures */
2005-11-02 337 mad_agent_priv = kzalloc(sizeof *mad_agent_priv, GFP_KERNEL);
2005-04-16 338 if (!mad_agent_priv) {
2005-04-16 339 ret = ERR_PTR(-ENOMEM);
2005-04-16 340 goto error1;
2005-04-16 341 }
2005-07-27 342
2005-04-16 343 if (mad_reg_req) {
2010-05-15 344 reg_req = kmemdup(mad_reg_req, sizeof *reg_req, GFP_KERNEL);
2005-04-16 345 if (!reg_req) {
2005-04-16 346 ret = ERR_PTR(-ENOMEM);
2005-07-27 347 goto error3;
2005-04-16 348 }
2005-04-16 349 }
2005-04-16 350
2005-04-16 351 /* Now, fill in the various structures */
2005-04-16 352 mad_agent_priv->qp_info = &port_priv->qp_info[qpn];
2005-04-16 353 mad_agent_priv->reg_req = reg_req;
2005-07-27 354 mad_agent_priv->agent.rmpp_version = rmpp_version;
2005-04-16 355 mad_agent_priv->agent.device = device;
2005-04-16 356 mad_agent_priv->agent.recv_handler = recv_handler;
2005-04-16 357 mad_agent_priv->agent.send_handler = send_handler;
2005-04-16 358 mad_agent_priv->agent.context = context;
2005-04-16 359 mad_agent_priv->agent.qp = port_priv->qp_info[qpn].qp;
2005-04-16 360 mad_agent_priv->agent.port_num = port_num;
2014-08-08 361 mad_agent_priv->agent.flags = registration_flags;
2009-02-27 362 spin_lock_init(&mad_agent_priv->lock);
2009-02-27 363 INIT_LIST_HEAD(&mad_agent_priv->send_list);
2009-02-27 364 INIT_LIST_HEAD(&mad_agent_priv->wait_list);
2009-02-27 365 INIT_LIST_HEAD(&mad_agent_priv->done_list);
2009-02-27 366 INIT_LIST_HEAD(&mad_agent_priv->rmpp_list);
2009-02-27 367 INIT_DELAYED_WORK(&mad_agent_priv->timed_work, timeout_sends);
2009-02-27 368 INIT_LIST_HEAD(&mad_agent_priv->local_list);
2009-02-27 369 INIT_WORK(&mad_agent_priv->local_work, local_completions);
2009-02-27 370 atomic_set(&mad_agent_priv->refcount, 1);
2009-02-27 371 init_completion(&mad_agent_priv->comp);
2005-04-16 372
2017-05-19 373 ret2 = ib_mad_agent_security_setup(&mad_agent_priv->agent, qp_type);
2017-05-19 374 if (ret2) {
2017-05-19 375 ret = ERR_PTR(ret2);
2017-05-19 376 goto error4;
2017-05-19 377 }
Westgaard Ry 2018-06-07 378 ib_mad_client_id = ida_simple_get_cyclic(&ib_mad_client_ids,
Westgaard Ry 2018-06-07 379 1,
Westgaard Ry 2018-06-07 380 BIT(24) - 1,
Westgaard Ry 2018-06-07 381 GFP_KERNEL);
Westgaard Ry 2018-06-07 @382 if (ib_mad_client_id < 0) {
Westgaard Ry 2018-06-07 383 pr_err("Couldn't allocate agent tid; errcode: %#x\n",
Westgaard Ry 2018-06-07 384 ib_mad_client_id);
Westgaard Ry 2018-06-07 385 ret = ERR_PTR(ib_mad_client_id);
Westgaard Ry 2018-06-07 386 goto error4;
Westgaard Ry 2018-06-07 387 }
Westgaard Ry 2018-06-07 388 mad_agent_priv->agent.hi_tid = ib_mad_client_id;
2017-05-19 389
2005-04-16 390 spin_lock_irqsave(&port_priv->reg_lock, flags);
2005-04-16 391
2005-04-16 392 /*
2005-04-16 393 * Make sure MAD registration (if supplied)
2005-04-16 394 * is non overlapping with any existing ones
2005-04-16 395 */
2005-04-16 396 if (mad_reg_req) {
2005-04-16 397 mgmt_class = convert_mgmt_class(mad_reg_req->mgmt_class);
2005-04-16 398 if (!is_vendor_class(mgmt_class)) {
2005-04-16 399 class = port_priv->version[mad_reg_req->
2005-04-16 400 mgmt_class_version].class;
2005-04-16 401 if (class) {
2005-04-16 402 method = class->method_table[mgmt_class];
2005-04-16 403 if (method) {
2005-04-16 404 if (method_in_use(&method,
2005-04-16 405 mad_reg_req))
2017-05-19 406 goto error5;
2005-04-16 407 }
2005-04-16 408 }
2005-04-16 409 ret2 = add_nonoui_reg_req(mad_reg_req, mad_agent_priv,
2005-04-16 410 mgmt_class);
2005-04-16 411 } else {
2005-04-16 412 /* "New" vendor class range */
2005-04-16 413 vendor = port_priv->version[mad_reg_req->
2005-04-16 414 mgmt_class_version].vendor;
2005-04-16 415 if (vendor) {
2005-04-16 416 vclass = vendor_class_index(mgmt_class);
2005-04-16 417 vendor_class = vendor->vendor_class[vclass];
2005-04-16 418 if (vendor_class) {
2005-04-16 419 if (is_vendor_method_in_use(
2005-04-16 420 vendor_class,
2005-04-16 421 mad_reg_req))
2017-05-19 422 goto error5;
2005-04-16 423 }
2005-04-16 424 }
2005-04-16 425 ret2 = add_oui_reg_req(mad_reg_req, mad_agent_priv);
2005-04-16 426 }
2005-04-16 427 if (ret2) {
2005-04-16 428 ret = ERR_PTR(ret2);
2017-05-19 429 goto error5;
2005-04-16 430 }
2005-04-16 431 }
2005-04-16 432
2005-04-16 433 /* Add mad agent into port's agent list */
2005-04-16 434 list_add_tail(&mad_agent_priv->agent_list, &port_priv->agent_list);
2005-04-16 435 spin_unlock_irqrestore(&port_priv->reg_lock, flags);
2005-04-16 436
2005-04-16 437 return &mad_agent_priv->agent;
2017-05-19 438 error5:
2005-04-16 439 spin_unlock_irqrestore(&port_priv->reg_lock, flags);
2017-05-19 440 ib_mad_agent_security_cleanup(&mad_agent_priv->agent);
Westgaard Ry 2018-06-07 441 ida_simple_remove(&ib_mad_client_ids, ib_mad_client_id);
Westgaard Ry 2018-06-07 442
2017-05-19 443 error4:
2005-04-16 444 kfree(reg_req);
2005-07-27 445 error3:
2005-11-27 446 kfree(mad_agent_priv);
2005-04-16 447 error1:
2005-04-16 448 return ret;
2005-04-16 449 }
2005-04-16 450 EXPORT_SYMBOL(ib_register_mad_agent);
2005-04-16 451
Open Source Technology Center
.01.org/pipermail/kbuild-all">https://lists.01.org/pipermail/kbuild-all Intel Corporation

2018-06-17 06:36:22

by jackm

[permalink] [raw]

Subject: Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to allocate agent number (fwd)

On Sat, 16 Jun 2018 18:04:41 +0200 (CEST)
Julia Lawall <[email protected]> wrote:

> ib_mad_client_id is declared as u32, so it will not be < 0 (line 382).
>
> julia
>
Julia, your are correct.
However, I was under the impression that this patch set was abandoned
in favor of the one submitted by Matthew Wilcox! (Convert IB/mad to use
an IDR for agent IDs)

Hans, Matthew?

-Jack
> ---------- Forwarded message ----------
> Date: Fri, 8 Jun 2018 08:49:57 +0800
> From: kbuild test robot <[email protected]>
> To: [email protected]
> Cc: Julia Lawall <[email protected]>
> Subject: Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to
> allocate agent number
>
> Hi Hans,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on linus/master]
> [also build test WARNING on v4.17]
> [if your patch is applied to the wrong git tree, please drop us a
> note to help improve the system]
>
> url:
> https://github.com/0day-ci/linux/commits/Hans-Westgaard-Ry/IB-mad-Use-ID-allocator-routines-to-allocate-agent-number/20180608-022348 ::::::
> branch date: 6 hours ago :::::: commit date: 6 hours ago
>
> >> drivers/infiniband/core/mad.c:382:5-21: WARNING: Unsigned
> >> expression compared with zero: ib_mad_client_id < 0
>
> #
> https://github.com/0day-ci/linux/commit/74b1ba09003c9d132878734bf44f32a62bad31db
> git remote add linux-review https://github.com/0day-ci/linux git
> remote update linux-review git checkout
> 74b1ba09003c9d132878734bf44f32a62bad31db vim +382
> drivers/infiniband/core/mad.c
>
> 2527e681 Sean Hefty 2006-07-20 190
> ^1da177e Linus Torvalds 2005-04-16 191 /*
> ^1da177e Linus Torvalds 2005-04-16 192 * ib_register_mad_agent
> - Register to send/receive MADs ^1da177e Linus Torvalds
> 2005-04-16 193 */ ^1da177e Linus Torvalds 2005-04-16 194
> struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
> ^1da177e Linus Torvalds 2005-04-16 195
> u8 port_num, ^1da177e
> Linus Torvalds 2005-04-16 196
> enum ib_qp_type qp_type,
> ^1da177e Linus Torvalds 2005-04-16 197
> struct ib_mad_reg_req
> *mad_reg_req, ^1da177e Linus Torvalds 2005-04-16 198
> u8 rmpp_version, ^1da177e
> Linus Torvalds 2005-04-16 199
> ib_mad_send_handler
> send_handler, ^1da177e Linus Torvalds 2005-04-16 200
> ib_mad_recv_handler
> recv_handler, 0f29b46d Ira Weiny 2014-08-08 201
> void *context, 0f29b46d
> Ira Weiny 2014-08-08 202
> u32 registration_flags)
> ^1da177e Linus Torvalds 2005-04-16 203 { ^1da177e Linus
> Torvalds 2005-04-16 204 struct ib_mad_port_private
> *port_priv; ^1da177e Linus Torvalds 2005-04-16 205
> struct ib_mad_agent *ret = ERR_PTR(-EINVAL); ^1da177e Linus
> Torvalds 2005-04-16 206 struct ib_mad_agent_private
> *mad_agent_priv; ^1da177e Linus Torvalds 2005-04-16 207
> struct ib_mad_reg_req *reg_req = NULL; ^1da177e Linus Torvalds
> 2005-04-16 208 struct ib_mad_mgmt_class_table *class;
> ^1da177e Linus Torvalds 2005-04-16 209 struct
> ib_mad_mgmt_vendor_class_table *vendor; ^1da177e Linus Torvalds
> 2005-04-16 210 struct ib_mad_mgmt_vendor_class
> *vendor_class; ^1da177e Linus Torvalds 2005-04-16 211
> struct ib_mad_mgmt_method_table *method; ^1da177e Linus Torvalds
> 2005-04-16 212 int ret2, qpn; ^1da177e Linus Torvalds
> 2005-04-16 213 unsigned long flags; ^1da177e Linus
> Torvalds 2005-04-16 214 u8 mgmt_class, vclass; 74b1ba09
> Hans Westgaard Ry 2018-06-07 215 u32 ib_mad_client_id;
> ^1da177e Linus Torvalds 2005-04-16 216 /* Validate
> parameters */ ^1da177e Linus Torvalds 2005-04-16 217 qpn
> = get_spl_qp_index(qp_type); 9ad13a42 Ira Weiny 2014-08-08
> 218 if (qpn == -1) { 9ad13a42 Ira Weiny 2014-08-08
> 219 dev_notice(&device->dev, 9ad13a42 Ira
> Weiny 2014-08-08 220
> "ib_register_mad_agent: invalid QP Type %d\n", 9ad13a42 Ira
> Weiny 2014-08-08 221 qp_type);
> ^1da177e Linus Torvalds 2005-04-16 222 goto
> error1; 9ad13a42 Ira Weiny 2014-08-08 223 }
> ^1da177e Linus Torvalds 2005-04-16 224 9ad13a42 Ira Weiny
> 2014-08-08 225 if (rmpp_version && rmpp_version !=
> IB_MGMT_RMPP_VERSION) { 9ad13a42 Ira Weiny 2014-08-08 226
> dev_notice(&device->dev, 9ad13a42 Ira Weiny
> 2014-08-08 227 "ib_register_mad_agent:
> invalid RMPP Version %u\n", 9ad13a42 Ira Weiny 2014-08-08
> 228 rmpp_version); fa619a77 Hal
> Rosenstock 2005-07-27 229 goto error1; 9ad13a42
> Ira Weiny 2014-08-08 230 } ^1da177e Linus
> Torvalds 2005-04-16 231 ^1da177e Linus Torvalds 2005-04-16
> 232 /* Validate MAD registration request if supplied */
> ^1da177e Linus Torvalds 2005-04-16 233 if (mad_reg_req)
> { 9ad13a42 Ira Weiny 2014-08-08 234 if
> (mad_reg_req->mgmt_class_version >= MAX_MGMT_VERSION) { 9ad13a42 Ira
> Weiny 2014-08-08 235
> dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 236
> "ib_register_mad_agent: invalid
> Class Version %u\n", 9ad13a42 Ira Weiny 2014-08-08 237
> mad_reg_req->mgmt_class_version);
> ^1da177e Linus Torvalds 2005-04-16 238
> goto error1; 9ad13a42 Ira Weiny 2014-08-08 239
> } 9ad13a42 Ira Weiny 2014-08-08 240
> if (!recv_handler) { 9ad13a42 Ira Weiny
> 2014-08-08 241 dev_notice(&device->dev,
> 9ad13a42 Ira Weiny 2014-08-08 242
> "ib_register_mad_agent: no
> recv_handler\n"); ^1da177e Linus Torvalds 2005-04-16 243
> goto error1; 9ad13a42 Ira Weiny
> 2014-08-08 244 } ^1da177e Linus Torvalds
> 2005-04-16 245 if (mad_reg_req->mgmt_class >=
> MAX_MGMT_CLASS) { ^1da177e Linus Torvalds 2005-04-16 246
> /* ^1da177e Linus Torvalds 2005-04-16
> 247 * IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE is
> the only ^1da177e Linus Torvalds 2005-04-16 248
> * one in this range currently allowed
> ^1da177e Linus Torvalds 2005-04-16 249
> */ ^1da177e Linus Torvalds 2005-04-16 250
> if (mad_reg_req->mgmt_class != 9ad13a42 Ira
> Weiny 2014-08-08 251
> IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) { 9ad13a42 Ira Weiny
> 2014-08-08 252
> dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 253
> "ib_register_mad_agent:
> Invalid Mgmt Class 0x%x\n", 9ad13a42 Ira Weiny 2014-08-08
> 254
> mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 255
> goto error1; 9ad13a42 Ira
> Weiny 2014-08-08 256 } ^1da177e
> Linus Torvalds 2005-04-16 257 } else if
> (mad_reg_req->mgmt_class == 0) { ^1da177e Linus Torvalds
> 2005-04-16 258 /* ^1da177e Linus
> Torvalds 2005-04-16 259 * Class 0 is
> reserved in IBA and is used for ^1da177e Linus Torvalds
> 2005-04-16 260 * aliasing of
> IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE ^1da177e Linus Torvalds
> 2005-04-16 261 */ 9ad13a42 Ira
> Weiny 2014-08-08 262
> dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 263
> "ib_register_mad_agent: Invalid
> Mgmt Class 0\n"); ^1da177e Linus Torvalds 2005-04-16 264
> goto error1; ^1da177e Linus Torvalds
> 2005-04-16 265 } else if
> (is_vendor_class(mad_reg_req->mgmt_class)) { ^1da177e Linus
> Torvalds 2005-04-16 266 /* ^1da177e
> Linus Torvalds 2005-04-16 267 * If
> class is in "new" vendor range, ^1da177e Linus Torvalds
> 2005-04-16 268 * ensure supplied OUI is
> not zero ^1da177e Linus Torvalds 2005-04-16 269
> */ 9ad13a42 Ira Weiny 2014-08-08
> 270 if (!is_vendor_oui(mad_reg_req->oui))
> { 9ad13a42 Ira Weiny 2014-08-08 271
> dev_notice(&device->dev, 9ad13a42 Ira
> Weiny 2014-08-08 272
> "ib_register_mad_agent: No
> OUI specified for class 0x%x\n", 9ad13a42 Ira Weiny
> 2014-08-08 273
> mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 274
> goto error1; ^1da177e Linus
> Torvalds 2005-04-16 275 } 9ad13a42 Ira
> Weiny 2014-08-08 276 } 618a3c03 Hal
> Rosenstock 2006-03-28 277 /* Make sure class
> supplied is consistent with RMPP */ 64cb9c6a Hal Rosenstock
> 2006-04-12 278 if
> (!ib_is_mad_class_rmpp(mad_reg_req->mgmt_class)) { 9ad13a42 Ira
> Weiny 2014-08-08 279 if
> (rmpp_version) { 9ad13a42 Ira Weiny 2014-08-08 280
> dev_notice(&device->dev, 9ad13a42 Ira
> Weiny 2014-08-08 281
> "ib_register_mad_agent:
> RMPP version for non-RMPP class 0x%x\n", 9ad13a42 Ira Weiny
> 2014-08-08 282
> mad_reg_req->mgmt_class); 618a3c03 Hal Rosenstock 2006-03-28 283
> goto error1; 618a3c03 Hal
> Rosenstock 2006-03-28 284 } 9ad13a42 Ira
> Weiny 2014-08-08 285 } 1471cb6c Ira
> Weiny 2014-08-08 286 ^1da177e Linus Torvalds 2005-04-16
> 287 /* Make sure class supplied is consistent with
> QP type */ ^1da177e Linus Torvalds 2005-04-16 288
> if (qp_type == IB_QPT_SMI) { ^1da177e Linus
> Torvalds 2005-04-16 289 if
> ((mad_reg_req->mgmt_class != ^1da177e Linus Torvalds 2005-04-16
> 290
> IB_MGMT_CLASS_SUBN_LID_ROUTED) && ^1da177e Linus Torvalds
> 2005-04-16 291
> (mad_reg_req->mgmt_class != 9ad13a42 Ira Weiny 2014-08-08
> 292
> IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)) { 9ad13a42 Ira Weiny
> 2014-08-08 293
> dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 294
> "ib_register_mad_agent:
> Invalid SM QP type: class 0x%x\n", 9ad13a42 Ira Weiny
> 2014-08-08 295
> mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 296
> goto error1; 9ad13a42 Ira
> Weiny 2014-08-08 297 } ^1da177e
> Linus Torvalds 2005-04-16 298 } else { ^1da177e
> Linus Torvalds 2005-04-16 299 if
> ((mad_reg_req->mgmt_class == ^1da177e Linus Torvalds 2005-04-16
> 300
> IB_MGMT_CLASS_SUBN_LID_ROUTED) || ^1da177e Linus Torvalds
> 2005-04-16 301 (mad_reg_req->mgmt_class
> == 9ad13a42 Ira Weiny 2014-08-08 302
> IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE))
> { 9ad13a42 Ira Weiny 2014-08-08 303
> dev_notice(&device->dev, 9ad13a42 Ira
> Weiny 2014-08-08 304
> "ib_register_mad_agent:
> Invalid GS QP type: class 0x%x\n", 9ad13a42 Ira Weiny
> 2014-08-08 305
> mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 306
> goto error1; ^1da177e Linus
> Torvalds 2005-04-16 307 } 9ad13a42 Ira
> Weiny 2014-08-08 308 } ^1da177e Linus
> Torvalds 2005-04-16 309 } else { ^1da177e Linus
> Torvalds 2005-04-16 310 /* No registration
> request supplied */ ^1da177e Linus Torvalds 2005-04-16 311
> if (!send_handler) ^1da177e Linus Torvalds
> 2005-04-16 312 goto error1; 1471cb6c Ira
> Weiny 2014-08-08 313 if (registration_flags
> & IB_MAD_USER_RMPP) 1471cb6c Ira Weiny 2014-08-08 314
> goto error1; ^1da177e Linus Torvalds
> 2005-04-16 315 } ^1da177e Linus Torvalds 2005-04-16 316
> ^1da177e Linus Torvalds 2005-04-16 317 /* Validate
> device and port */ ^1da177e Linus Torvalds 2005-04-16 318
> port_priv = ib_get_mad_port(device, port_num); ^1da177e Linus
> Torvalds 2005-04-16 319 if (!port_priv) { f57e8ca5 Yuval
> Shaia 2017-01-19 320 dev_notice(&device->dev,
> f57e8ca5 Yuval Shaia 2017-01-19 321
> "ib_register_mad_agent: Invalid port
> %d\n", f57e8ca5 Yuval Shaia 2017-01-19 322
> port_num); ^1da177e Linus Torvalds
> 2005-04-16 323 ret = ERR_PTR(-ENODEV); ^1da177e
> Linus Torvalds 2005-04-16 324 goto error1;
> ^1da177e Linus Torvalds 2005-04-16 325 } ^1da177e Linus
> Torvalds 2005-04-16 326 c8367c4c Ira Weiny 2011-05-19
> 327 /* Verify the QP requested is supported. For example,
> Ethernet devices c8367c4c Ira Weiny 2011-05-19 328
> * will not have QP0 */ c8367c4c Ira Weiny 2011-05-19 329
> if (!port_priv->qp_info[qpn].qp) { 9ad13a42 Ira Weiny
> 2014-08-08 330 dev_notice(&device->dev, 9ad13a42
> Ira Weiny 2014-08-08 331
> "ib_register_mad_agent: QP %d not supported\n", qpn); c8367c4c Ira
> Weiny 2011-05-19 332 ret =
> ERR_PTR(-EPROTONOSUPPORT); c8367c4c Ira Weiny 2011-05-19
> 333 goto error1; c8367c4c Ira Weiny
> 2011-05-19 334 } c8367c4c Ira Weiny 2011-05-19 335
> ^1da177e Linus Torvalds 2005-04-16 336 /* Allocate
> structures */ de6eb66b Roland Dreier 2005-11-02 337
> mad_agent_priv = kzalloc(sizeof *mad_agent_priv, GFP_KERNEL);
> ^1da177e Linus Torvalds 2005-04-16 338 if
> (!mad_agent_priv) { ^1da177e Linus Torvalds 2005-04-16 339
> ret = ERR_PTR(-ENOMEM); ^1da177e Linus Torvalds
> 2005-04-16 340 goto error1; ^1da177e Linus
> Torvalds 2005-04-16 341 } b82cab6b Hal Rosenstock
> 2005-07-27 342 ^1da177e Linus Torvalds 2005-04-16 343
> if (mad_reg_req) { 9893e742 Julia Lawall 2010-05-15 344
> reg_req = kmemdup(mad_reg_req, sizeof *reg_req,
> GFP_KERNEL); ^1da177e Linus Torvalds 2005-04-16 345
> if (!reg_req) { ^1da177e Linus Torvalds
> 2005-04-16 346 ret = ERR_PTR(-ENOMEM);
> b82cab6b Hal Rosenstock 2005-07-27 347
> goto error3; ^1da177e Linus Torvalds 2005-04-16 348
> } ^1da177e Linus Torvalds 2005-04-16 349
> } ^1da177e Linus Torvalds 2005-04-16 350 ^1da177e Linus
> Torvalds 2005-04-16 351 /* Now, fill in the various
> structures */ ^1da177e Linus Torvalds 2005-04-16 352
> mad_agent_priv->qp_info = &port_priv->qp_info[qpn]; ^1da177e Linus
> Torvalds 2005-04-16 353 mad_agent_priv->reg_req =
> reg_req; fa619a77 Hal Rosenstock 2005-07-27 354
> mad_agent_priv->agent.rmpp_version = rmpp_version; ^1da177e Linus
> Torvalds 2005-04-16 355 mad_agent_priv->agent.device =
> device; ^1da177e Linus Torvalds 2005-04-16 356
> mad_agent_priv->agent.recv_handler = recv_handler; ^1da177e Linus
> Torvalds 2005-04-16 357
> mad_agent_priv->agent.send_handler = send_handler; ^1da177e Linus
> Torvalds 2005-04-16 358 mad_agent_priv->agent.context =
> context; ^1da177e Linus Torvalds 2005-04-16 359
> mad_agent_priv->agent.qp = port_priv->qp_info[qpn].qp; ^1da177e Linus
> Torvalds 2005-04-16 360 mad_agent_priv->agent.port_num =
> port_num; 0f29b46d Ira Weiny 2014-08-08 361
> mad_agent_priv->agent.flags = registration_flags; d9620a4c Ralph
> Campbell 2009-02-27 362
> spin_lock_init(&mad_agent_priv->lock); d9620a4c Ralph Campbell
> 2009-02-27 363 INIT_LIST_HEAD(&mad_agent_priv->send_list);
> d9620a4c Ralph Campbell 2009-02-27 364
> INIT_LIST_HEAD(&mad_agent_priv->wait_list); d9620a4c Ralph
> Campbell 2009-02-27 365
> INIT_LIST_HEAD(&mad_agent_priv->done_list); d9620a4c Ralph
> Campbell 2009-02-27 366
> INIT_LIST_HEAD(&mad_agent_priv->rmpp_list); d9620a4c Ralph
> Campbell 2009-02-27 367
> INIT_DELAYED_WORK(&mad_agent_priv->timed_work, timeout_sends);
> d9620a4c Ralph Campbell 2009-02-27 368
> INIT_LIST_HEAD(&mad_agent_priv->local_list); d9620a4c Ralph
> Campbell 2009-02-27 369
> INIT_WORK(&mad_agent_priv->local_work, local_completions); d9620a4c
> Ralph Campbell 2009-02-27 370
> atomic_set(&mad_agent_priv->refcount, 1); d9620a4c Ralph Campbell
> 2009-02-27 371 init_completion(&mad_agent_priv->comp);
> ^1da177e Linus Torvalds 2005-04-16 372 47a2b338 Daniel Jurgens
> 2017-05-19 373 ret2 =
> ib_mad_agent_security_setup(&mad_agent_priv->agent, qp_type);
> 47a2b338 Daniel Jurgens 2017-05-19 374 if (ret2)
> { 47a2b338 Daniel Jurgens 2017-05-19 375 ret =
> ERR_PTR(ret2); 47a2b338 Daniel Jurgens 2017-05-19 376
> goto error4; 47a2b338 Daniel Jurgens 2017-05-19
> 377 } 74b1ba09 Hans Westgaard Ry 2018-06-07 378
> ib_mad_client_id = ida_simple_get_cyclic(&ib_mad_client_ids, 74b1ba09
> Hans Westgaard Ry 2018-06-07 379
> 1, 74b1ba09 Hans
> Westgaard Ry 2018-06-07 380
> BIT(24) - 1, 74b1ba09
> Hans Westgaard Ry 2018-06-07 381
> GFP_KERNEL); 74b1ba09
> Hans Westgaard Ry 2018-06-07 @382 if (ib_mad_client_id < 0)
> { 74b1ba09 Hans Westgaard Ry 2018-06-07 383
> pr_err("Couldn't allocate agent tid; errcode: %#x\n", 74b1ba09 Hans
> Westgaard Ry 2018-06-07 384
> ib_mad_client_id); 74b1ba09 Hans Westgaard Ry 2018-06-07 385
> ret = ERR_PTR(ib_mad_client_id); 74b1ba09 Hans
> Westgaard Ry 2018-06-07 386 goto error4; 74b1ba09
> Hans Westgaard Ry 2018-06-07 387 } 74b1ba09 Hans Westgaard
> Ry 2018-06-07 388 mad_agent_priv->agent.hi_tid =
> ib_mad_client_id; 47a2b338 Daniel Jurgens 2017-05-19 389 ^1da177e
> Linus Torvalds 2005-04-16 390
> spin_lock_irqsave(&port_priv->reg_lock, flags); ^1da177e Linus
> Torvalds 2005-04-16 391 ^1da177e Linus Torvalds 2005-04-16
> 392 /* ^1da177e Linus Torvalds 2005-04-16 393
> * Make sure MAD registration (if supplied) ^1da177e Linus Torvalds
> 2005-04-16 394 * is non overlapping with any existing ones
> ^1da177e Linus Torvalds 2005-04-16 395 */ ^1da177e
> Linus Torvalds 2005-04-16 396 if (mad_reg_req)
> { ^1da177e Linus Torvalds 2005-04-16 397
> mgmt_class = convert_mgmt_class(mad_reg_req->mgmt_class); ^1da177e
> Linus Torvalds 2005-04-16 398 if
> (!is_vendor_class(mgmt_class)) { ^1da177e Linus Torvalds
> 2005-04-16 399 class =
> port_priv->version[mad_reg_req-> ^1da177e Linus Torvalds
> 2005-04-16 400
> mgmt_class_version].class; ^1da177e Linus Torvalds 2005-04-16
> 401 if (class) { ^1da177e Linus Torvalds
> 2005-04-16 402 method =
> class->method_table[mgmt_class]; ^1da177e Linus Torvalds
> 2005-04-16 403 if (method)
> { ^1da177e Linus Torvalds 2005-04-16 404
> if (method_in_use(&method,
> ^1da177e Linus Torvalds 2005-04-16 405
> mad_reg_req))
> 47a2b338 Daniel Jurgens 2017-05-19 406
> goto error5; ^1da177e
> Linus Torvalds 2005-04-16 407 }
> ^1da177e Linus Torvalds 2005-04-16 408 }
> ^1da177e Linus Torvalds 2005-04-16 409
> ret2 = add_nonoui_reg_req(mad_reg_req, mad_agent_priv, ^1da177e Linus
> Torvalds 2005-04-16 410
> mgmt_class);
> ^1da177e Linus Torvalds 2005-04-16 411 } else
> { ^1da177e Linus Torvalds 2005-04-16 412
> /* "New" vendor class range */ ^1da177e Linus
> Torvalds 2005-04-16 413 vendor =
> port_priv->version[mad_reg_req-> ^1da177e Linus Torvalds
> 2005-04-16 414
> mgmt_class_version].vendor; ^1da177e Linus Torvalds 2005-04-16
> 415 if (vendor) { ^1da177e Linus Torvalds
> 2005-04-16 416 vclass =
> vendor_class_index(mgmt_class); ^1da177e Linus Torvalds
> 2005-04-16 417 vendor_class =
> vendor->vendor_class[vclass]; ^1da177e Linus Torvalds 2005-04-16
> 418 if (vendor_class) { ^1da177e
> Linus Torvalds 2005-04-16 419
> if
> (is_vendor_method_in_use( ^1da177e Linus Torvalds 2005-04-16 420
> vendor_class,
> ^1da177e Linus Torvalds 2005-04-16 421
> mad_reg_req))
> 47a2b338 Daniel Jurgens 2017-05-19 422
> goto error5; ^1da177e
> Linus Torvalds 2005-04-16 423 }
> ^1da177e Linus Torvalds 2005-04-16 424 }
> ^1da177e Linus Torvalds 2005-04-16 425
> ret2 = add_oui_reg_req(mad_reg_req, mad_agent_priv); ^1da177e Linus
> Torvalds 2005-04-16 426 } ^1da177e Linus
> Torvalds 2005-04-16 427 if (ret2) { ^1da177e
> Linus Torvalds 2005-04-16 428 ret =
> ERR_PTR(ret2); 47a2b338 Daniel Jurgens 2017-05-19 429
> goto error5; ^1da177e Linus Torvalds
> 2005-04-16 430 } ^1da177e Linus Torvalds
> 2005-04-16 431 } ^1da177e Linus Torvalds 2005-04-16 432
> ^1da177e Linus Torvalds 2005-04-16 433 /* Add mad agent
> into port's agent list */ ^1da177e Linus Torvalds 2005-04-16 434
> list_add_tail(&mad_agent_priv->agent_list,
> &port_priv->agent_list); ^1da177e Linus Torvalds 2005-04-16 435
> spin_unlock_irqrestore(&port_priv->reg_lock, flags); ^1da177e
> Linus Torvalds 2005-04-16 436 ^1da177e Linus Torvalds
> 2005-04-16 437 return &mad_agent_priv->agent; 47a2b338
> Daniel Jurgens 2017-05-19 438 error5: ^1da177e Linus Torvalds
> 2005-04-16 439 spin_unlock_irqrestore(&port_priv->reg_lock,
> flags); 47a2b338 Daniel Jurgens 2017-05-19 440
> ib_mad_agent_security_cleanup(&mad_agent_priv->agent); 74b1ba09 Hans
> Westgaard Ry 2018-06-07 441
> ida_simple_remove(&ib_mad_client_ids, ib_mad_client_id); 74b1ba09
> Hans Westgaard Ry 2018-06-07 442 47a2b338 Daniel Jurgens
> 2017-05-19 443 error4: ^1da177e Linus Torvalds 2005-04-16 444
> kfree(reg_req); b82cab6b Hal Rosenstock 2005-07-27 445
> error3: 2012a116 Adrian Bunk 2005-11-27 446
> kfree(mad_agent_priv); ^1da177e Linus Torvalds 2005-04-16 447
> error1: ^1da177e Linus Torvalds 2005-04-16 448 return
> ret; ^1da177e Linus Torvalds 2005-04-16 449 } ^1da177e Linus
> Torvalds 2005-04-16 450 EXPORT_SYMBOL(ib_register_mad_agent);
> ^1da177e Linus Torvalds 2005-04-16 451
>
> ---
> 0-DAY kernel test infrastructure Open Source
> Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel
> Corporation

2018-06-17 06:43:45

by Julia Lawall

[permalink] [raw]

Subject: Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to allocate agent number (fwd)

On Sun, 17 Jun 2018, jackm wrote:

> On Sat, 16 Jun 2018 18:04:41 +0200 (CEST)
> Julia Lawall <[email protected]> wrote:
>
> > ib_mad_client_id is declared as u32, so it will not be < 0 (line 382).
> >
> > julia
> >
> Julia, your are correct.
> However, I was under the impression that this patch set was abandoned
> in favor of the one submitted by Matthew Wilcox! (Convert IB/mad to use
> an IDR for agent IDs)

No idea. I just get the kbuild reports, and this was one that I didn't
get to in a timely manner. So it's probably fine to ignore it.

julia

>
> Hans, Matthew?
>
> -Jack
> > ---------- Forwarded message ----------
> > Date: Fri, 8 Jun 2018 08:49:57 +0800
> > From: kbuild test robot <[email protected]>
> > To: [email protected]
> > Cc: Julia Lawall <[email protected]>
> > Subject: Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to
> > allocate agent number
> >
> > Hi Hans,
> >
> > Thank you for the patch! Perhaps something to improve:
> >
> > [auto build test WARNING on linus/master]
> > [also build test WARNING on v4.17]
> > [if your patch is applied to the wrong git tree, please drop us a
> > note to help improve the system]
> >
> > url:
> > https://github.com/0day-ci/linux/commits/Hans-Westgaard-Ry/IB-mad-Use-ID-allocator-routines-to-allocate-agent-number/20180608-022348 ::::::
> > branch date: 6 hours ago :::::: commit date: 6 hours ago
> >
> > >> drivers/infiniband/core/mad.c:382:5-21: WARNING: Unsigned
> > >> expression compared with zero: ib_mad_client_id < 0
> >
> > #
> > https://github.com/0day-ci/linux/commit/74b1ba09003c9d132878734bf44f32a62bad31db
> > git remote add linux-review https://github.com/0day-ci/linux git
> > remote update linux-review git checkout
> > 74b1ba09003c9d132878734bf44f32a62bad31db vim +382
> > drivers/infiniband/core/mad.c
> >
> > 2527e681 Sean Hefty 2006-07-20 190
> > ^1da177e Linus Torvalds 2005-04-16 191 /*
> > ^1da177e Linus Torvalds 2005-04-16 192 * ib_register_mad_agent
> > - Register to send/receive MADs ^1da177e Linus Torvalds
> > 2005-04-16 193 */ ^1da177e Linus Torvalds 2005-04-16 194
> > struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
> > ^1da177e Linus Torvalds 2005-04-16 195
> > u8 port_num, ^1da177e
> > Linus Torvalds 2005-04-16 196
> > enum ib_qp_type qp_type,
> > ^1da177e Linus Torvalds 2005-04-16 197
> > struct ib_mad_reg_req
> > *mad_reg_req, ^1da177e Linus Torvalds 2005-04-16 198
> > u8 rmpp_version, ^1da177e
> > Linus Torvalds 2005-04-16 199
> > ib_mad_send_handler
> > send_handler, ^1da177e Linus Torvalds 2005-04-16 200
> > ib_mad_recv_handler
> > recv_handler, 0f29b46d Ira Weiny 2014-08-08 201
> > void *context, 0f29b46d
> > Ira Weiny 2014-08-08 202
> > u32 registration_flags)
> > ^1da177e Linus Torvalds 2005-04-16 203 { ^1da177e Linus
> > Torvalds 2005-04-16 204 struct ib_mad_port_private
> > *port_priv; ^1da177e Linus Torvalds 2005-04-16 205
> > struct ib_mad_agent *ret = ERR_PTR(-EINVAL); ^1da177e Linus
> > Torvalds 2005-04-16 206 struct ib_mad_agent_private
> > *mad_agent_priv; ^1da177e Linus Torvalds 2005-04-16 207
> > struct ib_mad_reg_req *reg_req = NULL; ^1da177e Linus Torvalds
> > 2005-04-16 208 struct ib_mad_mgmt_class_table *class;
> > ^1da177e Linus Torvalds 2005-04-16 209 struct
> > ib_mad_mgmt_vendor_class_table *vendor; ^1da177e Linus Torvalds
> > 2005-04-16 210 struct ib_mad_mgmt_vendor_class
> > *vendor_class; ^1da177e Linus Torvalds 2005-04-16 211
> > struct ib_mad_mgmt_method_table *method; ^1da177e Linus Torvalds
> > 2005-04-16 212 int ret2, qpn; ^1da177e Linus Torvalds
> > 2005-04-16 213 unsigned long flags; ^1da177e Linus
> > Torvalds 2005-04-16 214 u8 mgmt_class, vclass; 74b1ba09
> > Hans Westgaard Ry 2018-06-07 215 u32 ib_mad_client_id;
> > ^1da177e Linus Torvalds 2005-04-16 216 /* Validate
> > parameters */ ^1da177e Linus Torvalds 2005-04-16 217 qpn
> > = get_spl_qp_index(qp_type); 9ad13a42 Ira Weiny 2014-08-08
> > 218 if (qpn == -1) { 9ad13a42 Ira Weiny 2014-08-08
> > 219 dev_notice(&device->dev, 9ad13a42 Ira
> > Weiny 2014-08-08 220
> > "ib_register_mad_agent: invalid QP Type %d\n", 9ad13a42 Ira
> > Weiny 2014-08-08 221 qp_type);
> > ^1da177e Linus Torvalds 2005-04-16 222 goto
> > error1; 9ad13a42 Ira Weiny 2014-08-08 223 }
> > ^1da177e Linus Torvalds 2005-04-16 224 9ad13a42 Ira Weiny
> > 2014-08-08 225 if (rmpp_version && rmpp_version !=
> > IB_MGMT_RMPP_VERSION) { 9ad13a42 Ira Weiny 2014-08-08 226
> > dev_notice(&device->dev, 9ad13a42 Ira Weiny
> > 2014-08-08 227 "ib_register_mad_agent:
> > invalid RMPP Version %u\n", 9ad13a42 Ira Weiny 2014-08-08
> > 228 rmpp_version); fa619a77 Hal
> > Rosenstock 2005-07-27 229 goto error1; 9ad13a42
> > Ira Weiny 2014-08-08 230 } ^1da177e Linus
> > Torvalds 2005-04-16 231 ^1da177e Linus Torvalds 2005-04-16
> > 232 /* Validate MAD registration request if supplied */
> > ^1da177e Linus Torvalds 2005-04-16 233 if (mad_reg_req)
> > { 9ad13a42 Ira Weiny 2014-08-08 234 if
> > (mad_reg_req->mgmt_class_version >= MAX_MGMT_VERSION) { 9ad13a42 Ira
> > Weiny 2014-08-08 235
> > dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 236
> > "ib_register_mad_agent: invalid
> > Class Version %u\n", 9ad13a42 Ira Weiny 2014-08-08 237
> > mad_reg_req->mgmt_class_version);
> > ^1da177e Linus Torvalds 2005-04-16 238
> > goto error1; 9ad13a42 Ira Weiny 2014-08-08 239
> > } 9ad13a42 Ira Weiny 2014-08-08 240
> > if (!recv_handler) { 9ad13a42 Ira Weiny
> > 2014-08-08 241 dev_notice(&device->dev,
> > 9ad13a42 Ira Weiny 2014-08-08 242
> > "ib_register_mad_agent: no
> > recv_handler\n"); ^1da177e Linus Torvalds 2005-04-16 243
> > goto error1; 9ad13a42 Ira Weiny
> > 2014-08-08 244 } ^1da177e Linus Torvalds
> > 2005-04-16 245 if (mad_reg_req->mgmt_class >=
> > MAX_MGMT_CLASS) { ^1da177e Linus Torvalds 2005-04-16 246
> > /* ^1da177e Linus Torvalds 2005-04-16
> > 247 * IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE is
> > the only ^1da177e Linus Torvalds 2005-04-16 248
> > * one in this range currently allowed
> > ^1da177e Linus Torvalds 2005-04-16 249
> > */ ^1da177e Linus Torvalds 2005-04-16 250
> > if (mad_reg_req->mgmt_class != 9ad13a42 Ira
> > Weiny 2014-08-08 251
> > IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) { 9ad13a42 Ira Weiny
> > 2014-08-08 252
> > dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 253
> > "ib_register_mad_agent:
> > Invalid Mgmt Class 0x%x\n", 9ad13a42 Ira Weiny 2014-08-08
> > 254
> > mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 255
> > goto error1; 9ad13a42 Ira
> > Weiny 2014-08-08 256 } ^1da177e
> > Linus Torvalds 2005-04-16 257 } else if
> > (mad_reg_req->mgmt_class == 0) { ^1da177e Linus Torvalds
> > 2005-04-16 258 /* ^1da177e Linus
> > Torvalds 2005-04-16 259 * Class 0 is
> > reserved in IBA and is used for ^1da177e Linus Torvalds
> > 2005-04-16 260 * aliasing of
> > IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE ^1da177e Linus Torvalds
> > 2005-04-16 261 */ 9ad13a42 Ira
> > Weiny 2014-08-08 262
> > dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 263
> > "ib_register_mad_agent: Invalid
> > Mgmt Class 0\n"); ^1da177e Linus Torvalds 2005-04-16 264
> > goto error1; ^1da177e Linus Torvalds
> > 2005-04-16 265 } else if
> > (is_vendor_class(mad_reg_req->mgmt_class)) { ^1da177e Linus
> > Torvalds 2005-04-16 266 /* ^1da177e
> > Linus Torvalds 2005-04-16 267 * If
> > class is in "new" vendor range, ^1da177e Linus Torvalds
> > 2005-04-16 268 * ensure supplied OUI is
> > not zero ^1da177e Linus Torvalds 2005-04-16 269
> > */ 9ad13a42 Ira Weiny 2014-08-08
> > 270 if (!is_vendor_oui(mad_reg_req->oui))
> > { 9ad13a42 Ira Weiny 2014-08-08 271
> > dev_notice(&device->dev, 9ad13a42 Ira
> > Weiny 2014-08-08 272
> > "ib_register_mad_agent: No
> > OUI specified for class 0x%x\n", 9ad13a42 Ira Weiny
> > 2014-08-08 273
> > mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 274
> > goto error1; ^1da177e Linus
> > Torvalds 2005-04-16 275 } 9ad13a42 Ira
> > Weiny 2014-08-08 276 } 618a3c03 Hal
> > Rosenstock 2006-03-28 277 /* Make sure class
> > supplied is consistent with RMPP */ 64cb9c6a Hal Rosenstock
> > 2006-04-12 278 if
> > (!ib_is_mad_class_rmpp(mad_reg_req->mgmt_class)) { 9ad13a42 Ira
> > Weiny 2014-08-08 279 if
> > (rmpp_version) { 9ad13a42 Ira Weiny 2014-08-08 280
> > dev_notice(&device->dev, 9ad13a42 Ira
> > Weiny 2014-08-08 281
> > "ib_register_mad_agent:
> > RMPP version for non-RMPP class 0x%x\n", 9ad13a42 Ira Weiny
> > 2014-08-08 282
> > mad_reg_req->mgmt_class); 618a3c03 Hal Rosenstock 2006-03-28 283
> > goto error1; 618a3c03 Hal
> > Rosenstock 2006-03-28 284 } 9ad13a42 Ira
> > Weiny 2014-08-08 285 } 1471cb6c Ira
> > Weiny 2014-08-08 286 ^1da177e Linus Torvalds 2005-04-16
> > 287 /* Make sure class supplied is consistent with
> > QP type */ ^1da177e Linus Torvalds 2005-04-16 288
> > if (qp_type == IB_QPT_SMI) { ^1da177e Linus
> > Torvalds 2005-04-16 289 if
> > ((mad_reg_req->mgmt_class != ^1da177e Linus Torvalds 2005-04-16
> > 290
> > IB_MGMT_CLASS_SUBN_LID_ROUTED) && ^1da177e Linus Torvalds
> > 2005-04-16 291
> > (mad_reg_req->mgmt_class != 9ad13a42 Ira Weiny 2014-08-08
> > 292
> > IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)) { 9ad13a42 Ira Weiny
> > 2014-08-08 293
> > dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 294
> > "ib_register_mad_agent:
> > Invalid SM QP type: class 0x%x\n", 9ad13a42 Ira Weiny
> > 2014-08-08 295
> > mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 296
> > goto error1; 9ad13a42 Ira
> > Weiny 2014-08-08 297 } ^1da177e
> > Linus Torvalds 2005-04-16 298 } else { ^1da177e
> > Linus Torvalds 2005-04-16 299 if
> > ((mad_reg_req->mgmt_class == ^1da177e Linus Torvalds 2005-04-16
> > 300
> > IB_MGMT_CLASS_SUBN_LID_ROUTED) || ^1da177e Linus Torvalds
> > 2005-04-16 301 (mad_reg_req->mgmt_class
> > == 9ad13a42 Ira Weiny 2014-08-08 302
> > IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE))
> > { 9ad13a42 Ira Weiny 2014-08-08 303
> > dev_notice(&device->dev, 9ad13a42 Ira
> > Weiny 2014-08-08 304
> > "ib_register_mad_agent:
> > Invalid GS QP type: class 0x%x\n", 9ad13a42 Ira Weiny
> > 2014-08-08 305
> > mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 306
> > goto error1; ^1da177e Linus
> > Torvalds 2005-04-16 307 } 9ad13a42 Ira
> > Weiny 2014-08-08 308 } ^1da177e Linus
> > Torvalds 2005-04-16 309 } else { ^1da177e Linus
> > Torvalds 2005-04-16 310 /* No registration
> > request supplied */ ^1da177e Linus Torvalds 2005-04-16 311
> > if (!send_handler) ^1da177e Linus Torvalds
> > 2005-04-16 312 goto error1; 1471cb6c Ira
> > Weiny 2014-08-08 313 if (registration_flags
> > & IB_MAD_USER_RMPP) 1471cb6c Ira Weiny 2014-08-08 314
> > goto error1; ^1da177e Linus Torvalds
> > 2005-04-16 315 } ^1da177e Linus Torvalds 2005-04-16 316
> > ^1da177e Linus Torvalds 2005-04-16 317 /* Validate
> > device and port */ ^1da177e Linus Torvalds 2005-04-16 318
> > port_priv = ib_get_mad_port(device, port_num); ^1da177e Linus
> > Torvalds 2005-04-16 319 if (!port_priv) { f57e8ca5 Yuval
> > Shaia 2017-01-19 320 dev_notice(&device->dev,
> > f57e8ca5 Yuval Shaia 2017-01-19 321
> > "ib_register_mad_agent: Invalid port
> > %d\n", f57e8ca5 Yuval Shaia 2017-01-19 322
> > port_num); ^1da177e Linus Torvalds
> > 2005-04-16 323 ret = ERR_PTR(-ENODEV); ^1da177e
> > Linus Torvalds 2005-04-16 324 goto error1;
> > ^1da177e Linus Torvalds 2005-04-16 325 } ^1da177e Linus
> > Torvalds 2005-04-16 326 c8367c4c Ira Weiny 2011-05-19
> > 327 /* Verify the QP requested is supported. For example,
> > Ethernet devices c8367c4c Ira Weiny 2011-05-19 328
> > * will not have QP0 */ c8367c4c Ira Weiny 2011-05-19 329
> > if (!port_priv->qp_info[qpn].qp) { 9ad13a42 Ira Weiny
> > 2014-08-08 330 dev_notice(&device->dev, 9ad13a42
> > Ira Weiny 2014-08-08 331
> > "ib_register_mad_agent: QP %d not supported\n", qpn); c8367c4c Ira
> > Weiny 2011-05-19 332 ret =
> > ERR_PTR(-EPROTONOSUPPORT); c8367c4c Ira Weiny 2011-05-19
> > 333 goto error1; c8367c4c Ira Weiny
> > 2011-05-19 334 } c8367c4c Ira Weiny 2011-05-19 335
> > ^1da177e Linus Torvalds 2005-04-16 336 /* Allocate
> > structures */ de6eb66b Roland Dreier 2005-11-02 337
> > mad_agent_priv = kzalloc(sizeof *mad_agent_priv, GFP_KERNEL);
> > ^1da177e Linus Torvalds 2005-04-16 338 if
> > (!mad_agent_priv) { ^1da177e Linus Torvalds 2005-04-16 339
> > ret = ERR_PTR(-ENOMEM); ^1da177e Linus Torvalds
> > 2005-04-16 340 goto error1; ^1da177e Linus
> > Torvalds 2005-04-16 341 } b82cab6b Hal Rosenstock
> > 2005-07-27 342 ^1da177e Linus Torvalds 2005-04-16 343
> > if (mad_reg_req) { 9893e742 Julia Lawall 2010-05-15 344
> > reg_req = kmemdup(mad_reg_req, sizeof *reg_req,
> > GFP_KERNEL); ^1da177e Linus Torvalds 2005-04-16 345
> > if (!reg_req) { ^1da177e Linus Torvalds
> > 2005-04-16 346 ret = ERR_PTR(-ENOMEM);
> > b82cab6b Hal Rosenstock 2005-07-27 347
> > goto error3; ^1da177e Linus Torvalds 2005-04-16 348
> > } ^1da177e Linus Torvalds 2005-04-16 349
> > } ^1da177e Linus Torvalds 2005-04-16 350 ^1da177e Linus
> > Torvalds 2005-04-16 351 /* Now, fill in the various
> > structures */ ^1da177e Linus Torvalds 2005-04-16 352
> > mad_agent_priv->qp_info = &port_priv->qp_info[qpn]; ^1da177e Linus
> > Torvalds 2005-04-16 353 mad_agent_priv->reg_req =
> > reg_req; fa619a77 Hal Rosenstock 2005-07-27 354
> > mad_agent_priv->agent.rmpp_version = rmpp_version; ^1da177e Linus
> > Torvalds 2005-04-16 355 mad_agent_priv->agent.device =
> > device; ^1da177e Linus Torvalds 2005-04-16 356
> > mad_agent_priv->agent.recv_handler = recv_handler; ^1da177e Linus
> > Torvalds 2005-04-16 357
> > mad_agent_priv->agent.send_handler = send_handler; ^1da177e Linus
> > Torvalds 2005-04-16 358 mad_agent_priv->agent.context =
> > context; ^1da177e Linus Torvalds 2005-04-16 359
> > mad_agent_priv->agent.qp = port_priv->qp_info[qpn].qp; ^1da177e Linus
> > Torvalds 2005-04-16 360 mad_agent_priv->agent.port_num =
> > port_num; 0f29b46d Ira Weiny 2014-08-08 361
> > mad_agent_priv->agent.flags = registration_flags; d9620a4c Ralph
> > Campbell 2009-02-27 362
> > spin_lock_init(&mad_agent_priv->lock); d9620a4c Ralph Campbell
> > 2009-02-27 363 INIT_LIST_HEAD(&mad_agent_priv->send_list);
> > d9620a4c Ralph Campbell 2009-02-27 364
> > INIT_LIST_HEAD(&mad_agent_priv->wait_list); d9620a4c Ralph
> > Campbell 2009-02-27 365
> > INIT_LIST_HEAD(&mad_agent_priv->done_list); d9620a4c Ralph
> > Campbell 2009-02-27 366
> > INIT_LIST_HEAD(&mad_agent_priv->rmpp_list); d9620a4c Ralph
> > Campbell 2009-02-27 367
> > INIT_DELAYED_WORK(&mad_agent_priv->timed_work, timeout_sends);
> > d9620a4c Ralph Campbell 2009-02-27 368
> > INIT_LIST_HEAD(&mad_agent_priv->local_list); d9620a4c Ralph
> > Campbell 2009-02-27 369
> > INIT_WORK(&mad_agent_priv->local_work, local_completions); d9620a4c
> > Ralph Campbell 2009-02-27 370
> > atomic_set(&mad_agent_priv->refcount, 1); d9620a4c Ralph Campbell
> > 2009-02-27 371 init_completion(&mad_agent_priv->comp);
> > ^1da177e Linus Torvalds 2005-04-16 372 47a2b338 Daniel Jurgens
> > 2017-05-19 373 ret2 =
> > ib_mad_agent_security_setup(&mad_agent_priv->agent, qp_type);
> > 47a2b338 Daniel Jurgens 2017-05-19 374 if (ret2)
> > { 47a2b338 Daniel Jurgens 2017-05-19 375 ret =
> > ERR_PTR(ret2); 47a2b338 Daniel Jurgens 2017-05-19 376
> > goto error4; 47a2b338 Daniel Jurgens 2017-05-19
> > 377 } 74b1ba09 Hans Westgaard Ry 2018-06-07 378
> > ib_mad_client_id = ida_simple_get_cyclic(&ib_mad_client_ids, 74b1ba09
> > Hans Westgaard Ry 2018-06-07 379
> > 1, 74b1ba09 Hans
> > Westgaard Ry 2018-06-07 380
> > BIT(24) - 1, 74b1ba09
> > Hans Westgaard Ry 2018-06-07 381
> > GFP_KERNEL); 74b1ba09
> > Hans Westgaard Ry 2018-06-07 @382 if (ib_mad_client_id < 0)
> > { 74b1ba09 Hans Westgaard Ry 2018-06-07 383
> > pr_err("Couldn't allocate agent tid; errcode: %#x\n", 74b1ba09 Hans
> > Westgaard Ry 2018-06-07 384
> > ib_mad_client_id); 74b1ba09 Hans Westgaard Ry 2018-06-07 385
> > ret = ERR_PTR(ib_mad_client_id); 74b1ba09 Hans
> > Westgaard Ry 2018-06-07 386 goto error4; 74b1ba09
> > Hans Westgaard Ry 2018-06-07 387 } 74b1ba09 Hans Westgaard
> > Ry 2018-06-07 388 mad_agent_priv->agent.hi_tid =
> > ib_mad_client_id; 47a2b338 Daniel Jurgens 2017-05-19 389 ^1da177e
> > Linus Torvalds 2005-04-16 390
> > spin_lock_irqsave(&port_priv->reg_lock, flags); ^1da177e Linus
> > Torvalds 2005-04-16 391 ^1da177e Linus Torvalds 2005-04-16
> > 392 /* ^1da177e Linus Torvalds 2005-04-16 393
> > * Make sure MAD registration (if supplied) ^1da177e Linus Torvalds
> > 2005-04-16 394 * is non overlapping with any existing ones
> > ^1da177e Linus Torvalds 2005-04-16 395 */ ^1da177e
> > Linus Torvalds 2005-04-16 396 if (mad_reg_req)
> > { ^1da177e Linus Torvalds 2005-04-16 397
> > mgmt_class = convert_mgmt_class(mad_reg_req->mgmt_class); ^1da177e
> > Linus Torvalds 2005-04-16 398 if
> > (!is_vendor_class(mgmt_class)) { ^1da177e Linus Torvalds
> > 2005-04-16 399 class =
> > port_priv->version[mad_reg_req-> ^1da177e Linus Torvalds
> > 2005-04-16 400
> > mgmt_class_version].class; ^1da177e Linus Torvalds 2005-04-16
> > 401 if (class) { ^1da177e Linus Torvalds
> > 2005-04-16 402 method =
> > class->method_table[mgmt_class]; ^1da177e Linus Torvalds
> > 2005-04-16 403 if (method)
> > { ^1da177e Linus Torvalds 2005-04-16 404
> > if (method_in_use(&method,
> > ^1da177e Linus Torvalds 2005-04-16 405
> > mad_reg_req))
> > 47a2b338 Daniel Jurgens 2017-05-19 406
> > goto error5; ^1da177e
> > Linus Torvalds 2005-04-16 407 }
> > ^1da177e Linus Torvalds 2005-04-16 408 }
> > ^1da177e Linus Torvalds 2005-04-16 409
> > ret2 = add_nonoui_reg_req(mad_reg_req, mad_agent_priv, ^1da177e Linus
> > Torvalds 2005-04-16 410
> > mgmt_class);
> > ^1da177e Linus Torvalds 2005-04-16 411 } else
> > { ^1da177e Linus Torvalds 2005-04-16 412
> > /* "New" vendor class range */ ^1da177e Linus
> > Torvalds 2005-04-16 413 vendor =
> > port_priv->version[mad_reg_req-> ^1da177e Linus Torvalds
> > 2005-04-16 414
> > mgmt_class_version].vendor; ^1da177e Linus Torvalds 2005-04-16
> > 415 if (vendor) { ^1da177e Linus Torvalds
> > 2005-04-16 416 vclass =
> > vendor_class_index(mgmt_class); ^1da177e Linus Torvalds
> > 2005-04-16 417 vendor_class =
> > vendor->vendor_class[vclass]; ^1da177e Linus Torvalds 2005-04-16
> > 418 if (vendor_class) { ^1da177e
> > Linus Torvalds 2005-04-16 419
> > if
> > (is_vendor_method_in_use( ^1da177e Linus Torvalds 2005-04-16 420
> > vendor_class,
> > ^1da177e Linus Torvalds 2005-04-16 421
> > mad_reg_req))
> > 47a2b338 Daniel Jurgens 2017-05-19 422
> > goto error5; ^1da177e
> > Linus Torvalds 2005-04-16 423 }
> > ^1da177e Linus Torvalds 2005-04-16 424 }
> > ^1da177e Linus Torvalds 2005-04-16 425
> > ret2 = add_oui_reg_req(mad_reg_req, mad_agent_priv); ^1da177e Linus
> > Torvalds 2005-04-16 426 } ^1da177e Linus
> > Torvalds 2005-04-16 427 if (ret2) { ^1da177e
> > Linus Torvalds 2005-04-16 428 ret =
> > ERR_PTR(ret2); 47a2b338 Daniel Jurgens 2017-05-19 429
> > goto error5; ^1da177e Linus Torvalds
> > 2005-04-16 430 } ^1da177e Linus Torvalds
> > 2005-04-16 431 } ^1da177e Linus Torvalds 2005-04-16 432
> > ^1da177e Linus Torvalds 2005-04-16 433 /* Add mad agent
> > into port's agent list */ ^1da177e Linus Torvalds 2005-04-16 434
> > list_add_tail(&mad_agent_priv->agent_list,
> > &port_priv->agent_list); ^1da177e Linus Torvalds 2005-04-16 435
> > spin_unlock_irqrestore(&port_priv->reg_lock, flags); ^1da177e
> > Linus Torvalds 2005-04-16 436 ^1da177e Linus Torvalds
> > 2005-04-16 437 return &mad_agent_priv->agent; 47a2b338
> > Daniel Jurgens 2017-05-19 438 error5: ^1da177e Linus Torvalds
> > 2005-04-16 439 spin_unlock_irqrestore(&port_priv->reg_lock,
> > flags); 47a2b338 Daniel Jurgens 2017-05-19 440
> > ib_mad_agent_security_cleanup(&mad_agent_priv->agent); 74b1ba09 Hans
> > Westgaard Ry 2018-06-07 441
> > ida_simple_remove(&ib_mad_client_ids, ib_mad_client_id); 74b1ba09
> > Hans Westgaard Ry 2018-06-07 442 47a2b338 Daniel Jurgens
> > 2017-05-19 443 error4: ^1da177e Linus Torvalds 2005-04-16 444
> > kfree(reg_req); b82cab6b Hal Rosenstock 2005-07-27 445
> > error3: 2012a116 Adrian Bunk 2005-11-27 446
> > kfree(mad_agent_priv); ^1da177e Linus Torvalds 2005-04-16 447
> > error1: ^1da177e Linus Torvalds 2005-04-16 448 return
> > ret; ^1da177e Linus Torvalds 2005-04-16 449 } ^1da177e Linus
> > Torvalds 2005-04-16 450 EXPORT_SYMBOL(ib_register_mad_agent);
> > ^1da177e Linus Torvalds 2005-04-16 451
> >
> > ---
> > 0-DAY kernel test infrastructure Open Source
> > Technology Center
> > https://lists.01.org/pipermail/kbuild-all Intel
> > Corporation
>
>