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1 : : /* SPDX-License-Identifier: BSD-3-Clause
2 : : * Copyright (C) 2016 Intel Corporation. All rights reserved.
3 : : * Copyright (c) 2019-2021 Mellanox Technologies LTD. All rights reserved.
4 : : * Copyright (c) 2021-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
5 : : */
6 : :
7 : : #include "spdk/stdinc.h"
8 : :
9 : : #include "spdk/config.h"
10 : : #include "spdk/thread.h"
11 : : #include "spdk/likely.h"
12 : : #include "spdk/nvmf_transport.h"
13 : : #include "spdk/string.h"
14 : : #include "spdk/trace.h"
15 : : #include "spdk/tree.h"
16 : : #include "spdk/util.h"
17 : :
18 : : #include "spdk_internal/assert.h"
19 : : #include "spdk/log.h"
20 : : #include "spdk_internal/rdma_provider.h"
21 : : #include "spdk_internal/rdma_utils.h"
22 : :
23 : : #include "nvmf_internal.h"
24 : : #include "transport.h"
25 : :
26 : : #include "spdk_internal/trace_defs.h"
27 : :
28 : : struct spdk_nvme_rdma_hooks g_nvmf_hooks = {};
29 : : const struct spdk_nvmf_transport_ops spdk_nvmf_transport_rdma;
30 : :
31 : : /*
32 : : RDMA Connection Resource Defaults
33 : : */
34 : : #define NVMF_DEFAULT_MSDBD 16
35 : : #define NVMF_DEFAULT_TX_SGE SPDK_NVMF_MAX_SGL_ENTRIES
36 : : #define NVMF_DEFAULT_RSP_SGE 1
37 : : #define NVMF_DEFAULT_RX_SGE 2
38 : :
39 : : #define NVMF_RDMA_MAX_EVENTS_PER_POLL 32
40 : :
41 : : SPDK_STATIC_ASSERT(NVMF_DEFAULT_MSDBD <= SPDK_NVMF_MAX_SGL_ENTRIES,
42 : : "MSDBD must not exceed SPDK_NVMF_MAX_SGL_ENTRIES");
43 : :
44 : : /* The RDMA completion queue size */
45 : : #define DEFAULT_NVMF_RDMA_CQ_SIZE 4096
46 : : #define MAX_WR_PER_QP(queue_depth) (queue_depth * 3 + 2)
47 : :
48 : : enum spdk_nvmf_rdma_request_state {
49 : : /* The request is not currently in use */
50 : : RDMA_REQUEST_STATE_FREE = 0,
51 : :
52 : : /* Initial state when request first received */
53 : : RDMA_REQUEST_STATE_NEW,
54 : :
55 : : /* The request is queued until a data buffer is available. */
56 : : RDMA_REQUEST_STATE_NEED_BUFFER,
57 : :
58 : : /* The request is waiting on RDMA queue depth availability
59 : : * to transfer data from the host to the controller.
60 : : */
61 : : RDMA_REQUEST_STATE_DATA_TRANSFER_TO_CONTROLLER_PENDING,
62 : :
63 : : /* The request is currently transferring data from the host to the controller. */
64 : : RDMA_REQUEST_STATE_TRANSFERRING_HOST_TO_CONTROLLER,
65 : :
66 : : /* The request is ready to execute at the block device */
67 : : RDMA_REQUEST_STATE_READY_TO_EXECUTE,
68 : :
69 : : /* The request is currently executing at the block device */
70 : : RDMA_REQUEST_STATE_EXECUTING,
71 : :
72 : : /* The request finished executing at the block device */
73 : : RDMA_REQUEST_STATE_EXECUTED,
74 : :
75 : : /* The request is waiting on RDMA queue depth availability
76 : : * to transfer data from the controller to the host.
77 : : */
78 : : RDMA_REQUEST_STATE_DATA_TRANSFER_TO_HOST_PENDING,
79 : :
80 : : /* The request is waiting on RDMA queue depth availability
81 : : * to send response to the host.
82 : : */
83 : : RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING,
84 : :
85 : : /* The request is ready to send a completion */
86 : : RDMA_REQUEST_STATE_READY_TO_COMPLETE,
87 : :
88 : : /* The request is currently transferring data from the controller to the host. */
89 : : RDMA_REQUEST_STATE_TRANSFERRING_CONTROLLER_TO_HOST,
90 : :
91 : : /* The request currently has an outstanding completion without an
92 : : * associated data transfer.
93 : : */
94 : : RDMA_REQUEST_STATE_COMPLETING,
95 : :
96 : : /* The request completed and can be marked free. */
97 : : RDMA_REQUEST_STATE_COMPLETED,
98 : :
99 : : /* Terminator */
100 : : RDMA_REQUEST_NUM_STATES,
101 : : };
102 : :
103 : : static void
104 : 906 : nvmf_trace(void)
105 : : {
106 : 906 : spdk_trace_register_object(OBJECT_NVMF_RDMA_IO, 'r');
107 : :
108 : 906 : struct spdk_trace_tpoint_opts opts[] = {
109 : : {
110 : : "RDMA_REQ_NEW", TRACE_RDMA_REQUEST_STATE_NEW,
111 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 1,
112 : : {
113 : : { "qpair", SPDK_TRACE_ARG_TYPE_PTR, 8 },
114 : : { "qd", SPDK_TRACE_ARG_TYPE_INT, 4 }
115 : : }
116 : : },
117 : : {
118 : : "RDMA_REQ_COMPLETED", TRACE_RDMA_REQUEST_STATE_COMPLETED,
119 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
120 : : {
121 : : { "qpair", SPDK_TRACE_ARG_TYPE_PTR, 8 },
122 : : { "qd", SPDK_TRACE_ARG_TYPE_INT, 4 }
123 : : }
124 : : },
125 : : };
126 : :
127 : 906 : spdk_trace_register_description_ext(opts, SPDK_COUNTOF(opts));
128 : 906 : spdk_trace_register_description("RDMA_REQ_NEED_BUFFER", TRACE_RDMA_REQUEST_STATE_NEED_BUFFER,
129 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
130 : : SPDK_TRACE_ARG_TYPE_PTR, "qpair");
131 : 906 : spdk_trace_register_description("RDMA_REQ_TX_PENDING_C2H",
132 : : TRACE_RDMA_REQUEST_STATE_DATA_TRANSFER_TO_HOST_PENDING,
133 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
134 : : SPDK_TRACE_ARG_TYPE_PTR, "qpair");
135 : 906 : spdk_trace_register_description("RDMA_REQ_TX_PENDING_H2C",
136 : : TRACE_RDMA_REQUEST_STATE_DATA_TRANSFER_TO_CONTROLLER_PENDING,
137 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
138 : : SPDK_TRACE_ARG_TYPE_PTR, "qpair");
139 : 906 : spdk_trace_register_description("RDMA_REQ_TX_H2C",
140 : : TRACE_RDMA_REQUEST_STATE_TRANSFERRING_HOST_TO_CONTROLLER,
141 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
142 : : SPDK_TRACE_ARG_TYPE_PTR, "qpair");
143 : 906 : spdk_trace_register_description("RDMA_REQ_RDY_TO_EXECUTE",
144 : : TRACE_RDMA_REQUEST_STATE_READY_TO_EXECUTE,
145 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
146 : : SPDK_TRACE_ARG_TYPE_PTR, "qpair");
147 : 906 : spdk_trace_register_description("RDMA_REQ_EXECUTING",
148 : : TRACE_RDMA_REQUEST_STATE_EXECUTING,
149 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
150 : : SPDK_TRACE_ARG_TYPE_PTR, "qpair");
151 : 906 : spdk_trace_register_description("RDMA_REQ_EXECUTED",
152 : : TRACE_RDMA_REQUEST_STATE_EXECUTED,
153 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
154 : : SPDK_TRACE_ARG_TYPE_PTR, "qpair");
155 : 906 : spdk_trace_register_description("RDMA_REQ_RDY2COMPL_PEND",
156 : : TRACE_RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING,
157 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
158 : : SPDK_TRACE_ARG_TYPE_PTR, "qpair");
159 : 906 : spdk_trace_register_description("RDMA_REQ_RDY_TO_COMPL",
160 : : TRACE_RDMA_REQUEST_STATE_READY_TO_COMPLETE,
161 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
162 : : SPDK_TRACE_ARG_TYPE_PTR, "qpair");
163 : 906 : spdk_trace_register_description("RDMA_REQ_COMPLETING_C2H",
164 : : TRACE_RDMA_REQUEST_STATE_TRANSFERRING_CONTROLLER_TO_HOST,
165 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
166 : : SPDK_TRACE_ARG_TYPE_PTR, "qpair");
167 : 906 : spdk_trace_register_description("RDMA_REQ_COMPLETING",
168 : : TRACE_RDMA_REQUEST_STATE_COMPLETING,
169 : : OWNER_TYPE_NONE, OBJECT_NVMF_RDMA_IO, 0,
170 : : SPDK_TRACE_ARG_TYPE_PTR, "qpair");
171 : :
172 : 906 : spdk_trace_register_description("RDMA_QP_CREATE", TRACE_RDMA_QP_CREATE,
173 : : OWNER_TYPE_NONE, OBJECT_NONE, 0,
174 : : SPDK_TRACE_ARG_TYPE_INT, "");
175 : 906 : spdk_trace_register_description("RDMA_IBV_ASYNC_EVENT", TRACE_RDMA_IBV_ASYNC_EVENT,
176 : : OWNER_TYPE_NONE, OBJECT_NONE, 0,
177 : : SPDK_TRACE_ARG_TYPE_INT, "type");
178 : 906 : spdk_trace_register_description("RDMA_CM_ASYNC_EVENT", TRACE_RDMA_CM_ASYNC_EVENT,
179 : : OWNER_TYPE_NONE, OBJECT_NONE, 0,
180 : : SPDK_TRACE_ARG_TYPE_INT, "type");
181 : 906 : spdk_trace_register_description("RDMA_QP_DISCONNECT", TRACE_RDMA_QP_DISCONNECT,
182 : : OWNER_TYPE_NONE, OBJECT_NONE, 0,
183 : : SPDK_TRACE_ARG_TYPE_INT, "");
184 : 906 : spdk_trace_register_description("RDMA_QP_DESTROY", TRACE_RDMA_QP_DESTROY,
185 : : OWNER_TYPE_NONE, OBJECT_NONE, 0,
186 : : SPDK_TRACE_ARG_TYPE_INT, "");
187 : :
188 : 906 : spdk_trace_tpoint_register_relation(TRACE_BDEV_IO_START, OBJECT_NVMF_RDMA_IO, 1);
189 : 906 : spdk_trace_tpoint_register_relation(TRACE_BDEV_IO_DONE, OBJECT_NVMF_RDMA_IO, 0);
190 : 906 : }
191 : 979 : SPDK_TRACE_REGISTER_FN(nvmf_trace, "nvmf_rdma", TRACE_GROUP_NVMF_RDMA)
192 : :
193 : : enum spdk_nvmf_rdma_wr_type {
194 : : RDMA_WR_TYPE_RECV,
195 : : RDMA_WR_TYPE_SEND,
196 : : RDMA_WR_TYPE_DATA,
197 : : };
198 : :
199 : : struct spdk_nvmf_rdma_wr {
200 : : /* Uses enum spdk_nvmf_rdma_wr_type */
201 : : uint8_t type;
202 : : };
203 : :
204 : : /* This structure holds commands as they are received off the wire.
205 : : * It must be dynamically paired with a full request object
206 : : * (spdk_nvmf_rdma_request) to service a request. It is separate
207 : : * from the request because RDMA does not appear to order
208 : : * completions, so occasionally we'll get a new incoming
209 : : * command when there aren't any free request objects.
210 : : */
211 : : struct spdk_nvmf_rdma_recv {
212 : : struct ibv_recv_wr wr;
213 : : struct ibv_sge sgl[NVMF_DEFAULT_RX_SGE];
214 : :
215 : : struct spdk_nvmf_rdma_qpair *qpair;
216 : :
217 : : /* In-capsule data buffer */
218 : : uint8_t *buf;
219 : :
220 : : struct spdk_nvmf_rdma_wr rdma_wr;
221 : : uint64_t receive_tsc;
222 : :
223 : : STAILQ_ENTRY(spdk_nvmf_rdma_recv) link;
224 : : };
225 : :
226 : : struct spdk_nvmf_rdma_request_data {
227 : : struct ibv_send_wr wr;
228 : : struct ibv_sge sgl[SPDK_NVMF_MAX_SGL_ENTRIES];
229 : : };
230 : :
231 : : struct spdk_nvmf_rdma_request {
232 : : struct spdk_nvmf_request req;
233 : :
234 : : bool fused_failed;
235 : :
236 : : struct spdk_nvmf_rdma_wr data_wr;
237 : : struct spdk_nvmf_rdma_wr rsp_wr;
238 : :
239 : : /* Uses enum spdk_nvmf_rdma_request_state */
240 : : uint8_t state;
241 : :
242 : : /* Data offset in req.iov */
243 : : uint32_t offset;
244 : :
245 : : struct spdk_nvmf_rdma_recv *recv;
246 : :
247 : : struct {
248 : : struct ibv_send_wr wr;
249 : : struct ibv_sge sgl[NVMF_DEFAULT_RSP_SGE];
250 : : } rsp;
251 : :
252 : : uint16_t iovpos;
253 : : uint16_t num_outstanding_data_wr;
254 : : /* Used to split Write IO with multi SGL payload */
255 : : uint16_t num_remaining_data_wr;
256 : : uint64_t receive_tsc;
257 : : struct spdk_nvmf_rdma_request *fused_pair;
258 : : STAILQ_ENTRY(spdk_nvmf_rdma_request) state_link;
259 : : struct ibv_send_wr *remaining_tranfer_in_wrs;
260 : : struct ibv_send_wr *transfer_wr;
261 : : struct spdk_nvmf_rdma_request_data data;
262 : : };
263 : :
264 : : struct spdk_nvmf_rdma_resource_opts {
265 : : struct spdk_nvmf_rdma_qpair *qpair;
266 : : /* qp points either to an ibv_qp object or an ibv_srq object depending on the value of shared. */
267 : : void *qp;
268 : : struct spdk_rdma_utils_mem_map *map;
269 : : uint32_t max_queue_depth;
270 : : uint32_t in_capsule_data_size;
271 : : bool shared;
272 : : };
273 : :
274 : : struct spdk_nvmf_rdma_resources {
275 : : /* Array of size "max_queue_depth" containing RDMA requests. */
276 : : struct spdk_nvmf_rdma_request *reqs;
277 : :
278 : : /* Array of size "max_queue_depth" containing RDMA recvs. */
279 : : struct spdk_nvmf_rdma_recv *recvs;
280 : :
281 : : /* Array of size "max_queue_depth" containing 64 byte capsules
282 : : * used for receive.
283 : : */
284 : : union nvmf_h2c_msg *cmds;
285 : :
286 : : /* Array of size "max_queue_depth" containing 16 byte completions
287 : : * to be sent back to the user.
288 : : */
289 : : union nvmf_c2h_msg *cpls;
290 : :
291 : : /* Array of size "max_queue_depth * InCapsuleDataSize" containing
292 : : * buffers to be used for in capsule data.
293 : : */
294 : : void *bufs;
295 : :
296 : : /* Receives that are waiting for a request object */
297 : : STAILQ_HEAD(, spdk_nvmf_rdma_recv) incoming_queue;
298 : :
299 : : /* Queue to track free requests */
300 : : STAILQ_HEAD(, spdk_nvmf_rdma_request) free_queue;
301 : : };
302 : :
303 : : typedef void (*spdk_nvmf_rdma_qpair_ibv_event)(struct spdk_nvmf_rdma_qpair *rqpair);
304 : :
305 : : typedef void (*spdk_poller_destroy_cb)(void *ctx);
306 : :
307 : : struct spdk_nvmf_rdma_ibv_event_ctx {
308 : : struct spdk_nvmf_rdma_qpair *rqpair;
309 : : spdk_nvmf_rdma_qpair_ibv_event cb_fn;
310 : : /* Link to other ibv events associated with this qpair */
311 : : STAILQ_ENTRY(spdk_nvmf_rdma_ibv_event_ctx) link;
312 : : };
313 : :
314 : : struct spdk_nvmf_rdma_qpair {
315 : : struct spdk_nvmf_qpair qpair;
316 : :
317 : : struct spdk_nvmf_rdma_device *device;
318 : : struct spdk_nvmf_rdma_poller *poller;
319 : :
320 : : struct spdk_rdma_provider_qp *rdma_qp;
321 : : struct rdma_cm_id *cm_id;
322 : : struct spdk_rdma_provider_srq *srq;
323 : : struct rdma_cm_id *listen_id;
324 : :
325 : : /* Cache the QP number to improve QP search by RB tree. */
326 : : uint32_t qp_num;
327 : :
328 : : /* The maximum number of I/O outstanding on this connection at one time */
329 : : uint16_t max_queue_depth;
330 : :
331 : : /* The maximum number of active RDMA READ and ATOMIC operations at one time */
332 : : uint16_t max_read_depth;
333 : :
334 : : /* The maximum number of RDMA SEND operations at one time */
335 : : uint32_t max_send_depth;
336 : :
337 : : /* The current number of outstanding WRs from this qpair's
338 : : * recv queue. Should not exceed device->attr.max_queue_depth.
339 : : */
340 : : uint16_t current_recv_depth;
341 : :
342 : : /* The current number of active RDMA READ operations */
343 : : uint16_t current_read_depth;
344 : :
345 : : /* The current number of posted WRs from this qpair's
346 : : * send queue. Should not exceed max_send_depth.
347 : : */
348 : : uint32_t current_send_depth;
349 : :
350 : : /* The maximum number of SGEs per WR on the send queue */
351 : : uint32_t max_send_sge;
352 : :
353 : : /* The maximum number of SGEs per WR on the recv queue */
354 : : uint32_t max_recv_sge;
355 : :
356 : : struct spdk_nvmf_rdma_resources *resources;
357 : :
358 : : STAILQ_HEAD(, spdk_nvmf_rdma_request) pending_rdma_read_queue;
359 : :
360 : : STAILQ_HEAD(, spdk_nvmf_rdma_request) pending_rdma_write_queue;
361 : :
362 : : STAILQ_HEAD(, spdk_nvmf_rdma_request) pending_rdma_send_queue;
363 : :
364 : : /* Number of requests not in the free state */
365 : : uint32_t qd;
366 : :
367 : : bool ibv_in_error_state;
368 : :
369 : : RB_ENTRY(spdk_nvmf_rdma_qpair) node;
370 : :
371 : : STAILQ_ENTRY(spdk_nvmf_rdma_qpair) recv_link;
372 : :
373 : : STAILQ_ENTRY(spdk_nvmf_rdma_qpair) send_link;
374 : :
375 : : /* Points to the a request that has fuse bits set to
376 : : * SPDK_NVME_CMD_FUSE_FIRST, when the qpair is waiting
377 : : * for the request that has SPDK_NVME_CMD_FUSE_SECOND.
378 : : */
379 : : struct spdk_nvmf_rdma_request *fused_first;
380 : :
381 : : /*
382 : : * io_channel which is used to destroy qpair when it is removed from poll group
383 : : */
384 : : struct spdk_io_channel *destruct_channel;
385 : :
386 : : /* List of ibv async events */
387 : : STAILQ_HEAD(, spdk_nvmf_rdma_ibv_event_ctx) ibv_events;
388 : :
389 : : /* Lets us know that we have received the last_wqe event. */
390 : : bool last_wqe_reached;
391 : :
392 : : /* Indicate that nvmf_rdma_close_qpair is called */
393 : : bool to_close;
394 : : };
395 : :
396 : : struct spdk_nvmf_rdma_poller_stat {
397 : : uint64_t completions;
398 : : uint64_t polls;
399 : : uint64_t idle_polls;
400 : : uint64_t requests;
401 : : uint64_t request_latency;
402 : : uint64_t pending_free_request;
403 : : uint64_t pending_rdma_read;
404 : : uint64_t pending_rdma_write;
405 : : uint64_t pending_rdma_send;
406 : : struct spdk_rdma_provider_qp_stats qp_stats;
407 : : };
408 : :
409 : : struct spdk_nvmf_rdma_poller {
410 : : struct spdk_nvmf_rdma_device *device;
411 : : struct spdk_nvmf_rdma_poll_group *group;
412 : :
413 : : int num_cqe;
414 : : int required_num_wr;
415 : : struct ibv_cq *cq;
416 : :
417 : : /* The maximum number of I/O outstanding on the shared receive queue at one time */
418 : : uint16_t max_srq_depth;
419 : : bool need_destroy;
420 : :
421 : : /* Shared receive queue */
422 : : struct spdk_rdma_provider_srq *srq;
423 : :
424 : : struct spdk_nvmf_rdma_resources *resources;
425 : : struct spdk_nvmf_rdma_poller_stat stat;
426 : :
427 : : spdk_poller_destroy_cb destroy_cb;
428 : : void *destroy_cb_ctx;
429 : :
430 : : RB_HEAD(qpairs_tree, spdk_nvmf_rdma_qpair) qpairs;
431 : :
432 : : STAILQ_HEAD(, spdk_nvmf_rdma_qpair) qpairs_pending_recv;
433 : :
434 : : STAILQ_HEAD(, spdk_nvmf_rdma_qpair) qpairs_pending_send;
435 : :
436 : : TAILQ_ENTRY(spdk_nvmf_rdma_poller) link;
437 : : };
438 : :
439 : : struct spdk_nvmf_rdma_poll_group_stat {
440 : : uint64_t pending_data_buffer;
441 : : };
442 : :
443 : : struct spdk_nvmf_rdma_poll_group {
444 : : struct spdk_nvmf_transport_poll_group group;
445 : : struct spdk_nvmf_rdma_poll_group_stat stat;
446 : : TAILQ_HEAD(, spdk_nvmf_rdma_poller) pollers;
447 : : TAILQ_ENTRY(spdk_nvmf_rdma_poll_group) link;
448 : : };
449 : :
450 : : struct spdk_nvmf_rdma_conn_sched {
451 : : struct spdk_nvmf_rdma_poll_group *next_admin_pg;
452 : : struct spdk_nvmf_rdma_poll_group *next_io_pg;
453 : : };
454 : :
455 : : /* Assuming rdma_cm uses just one protection domain per ibv_context. */
456 : : struct spdk_nvmf_rdma_device {
457 : : struct ibv_device_attr attr;
458 : : struct ibv_context *context;
459 : :
460 : : struct spdk_rdma_utils_mem_map *map;
461 : : struct ibv_pd *pd;
462 : :
463 : : int num_srq;
464 : : bool need_destroy;
465 : : bool ready_to_destroy;
466 : : bool is_ready;
467 : :
468 : : TAILQ_ENTRY(spdk_nvmf_rdma_device) link;
469 : : };
470 : :
471 : : struct spdk_nvmf_rdma_port {
472 : : const struct spdk_nvme_transport_id *trid;
473 : : struct rdma_cm_id *id;
474 : : struct spdk_nvmf_rdma_device *device;
475 : : TAILQ_ENTRY(spdk_nvmf_rdma_port) link;
476 : : };
477 : :
478 : : struct rdma_transport_opts {
479 : : int num_cqe;
480 : : uint32_t max_srq_depth;
481 : : bool no_srq;
482 : : bool no_wr_batching;
483 : : int acceptor_backlog;
484 : : };
485 : :
486 : : struct spdk_nvmf_rdma_transport {
487 : : struct spdk_nvmf_transport transport;
488 : : struct rdma_transport_opts rdma_opts;
489 : :
490 : : struct spdk_nvmf_rdma_conn_sched conn_sched;
491 : :
492 : : struct rdma_event_channel *event_channel;
493 : :
494 : : struct spdk_mempool *data_wr_pool;
495 : :
496 : : struct spdk_poller *accept_poller;
497 : :
498 : : /* fields used to poll RDMA/IB events */
499 : : nfds_t npoll_fds;
500 : : struct pollfd *poll_fds;
501 : :
502 : : TAILQ_HEAD(, spdk_nvmf_rdma_device) devices;
503 : : TAILQ_HEAD(, spdk_nvmf_rdma_port) ports;
504 : : TAILQ_HEAD(, spdk_nvmf_rdma_poll_group) poll_groups;
505 : :
506 : : /* ports that are removed unexpectedly and need retry listen */
507 : : TAILQ_HEAD(, spdk_nvmf_rdma_port) retry_ports;
508 : : };
509 : :
510 : : struct poller_manage_ctx {
511 : : struct spdk_nvmf_rdma_transport *rtransport;
512 : : struct spdk_nvmf_rdma_poll_group *rgroup;
513 : : struct spdk_nvmf_rdma_poller *rpoller;
514 : : struct spdk_nvmf_rdma_device *device;
515 : :
516 : : struct spdk_thread *thread;
517 : : volatile int *inflight_op_counter;
518 : : };
519 : :
520 : : static const struct spdk_json_object_decoder rdma_transport_opts_decoder[] = {
521 : : {
522 : : "num_cqe", offsetof(struct rdma_transport_opts, num_cqe),
523 : : spdk_json_decode_int32, true
524 : : },
525 : : {
526 : : "max_srq_depth", offsetof(struct rdma_transport_opts, max_srq_depth),
527 : : spdk_json_decode_uint32, true
528 : : },
529 : : {
530 : : "no_srq", offsetof(struct rdma_transport_opts, no_srq),
531 : : spdk_json_decode_bool, true
532 : : },
533 : : {
534 : : "no_wr_batching", offsetof(struct rdma_transport_opts, no_wr_batching),
535 : : spdk_json_decode_bool, true
536 : : },
537 : : {
538 : : "acceptor_backlog", offsetof(struct rdma_transport_opts, acceptor_backlog),
539 : : spdk_json_decode_int32, true
540 : : },
541 : : };
542 : :
543 : : static int
544 : 16433878 : nvmf_rdma_qpair_compare(struct spdk_nvmf_rdma_qpair *rqpair1, struct spdk_nvmf_rdma_qpair *rqpair2)
545 : : {
546 [ + + # # : 16433878 : return rqpair1->qp_num < rqpair2->qp_num ? -1 : rqpair1->qp_num > rqpair2->qp_num;
# # # # #
# # # # #
# # # # ]
547 : : }
548 : :
549 [ + + + + : 16445020 : RB_GENERATE_STATIC(qpairs_tree, spdk_nvmf_rdma_qpair, node, nvmf_rdma_qpair_compare);
+ + + + +
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550 : :
551 : : static bool nvmf_rdma_request_process(struct spdk_nvmf_rdma_transport *rtransport,
552 : : struct spdk_nvmf_rdma_request *rdma_req);
553 : :
554 : : static void _poller_submit_sends(struct spdk_nvmf_rdma_transport *rtransport,
555 : : struct spdk_nvmf_rdma_poller *rpoller);
556 : :
557 : : static void _poller_submit_recvs(struct spdk_nvmf_rdma_transport *rtransport,
558 : : struct spdk_nvmf_rdma_poller *rpoller);
559 : :
560 : : static void _nvmf_rdma_remove_destroyed_device(void *c);
561 : :
562 : : static inline enum spdk_nvme_media_error_status_code
563 : 0 : nvmf_rdma_dif_error_to_compl_status(uint8_t err_type) {
564 : : enum spdk_nvme_media_error_status_code result;
565 [ # # # # ]: 0 : switch (err_type)
566 : : {
567 : 0 : case SPDK_DIF_REFTAG_ERROR:
568 : 0 : result = SPDK_NVME_SC_REFERENCE_TAG_CHECK_ERROR;
569 : 0 : break;
570 : 0 : case SPDK_DIF_APPTAG_ERROR:
571 : 0 : result = SPDK_NVME_SC_APPLICATION_TAG_CHECK_ERROR;
572 : 0 : break;
573 : 0 : case SPDK_DIF_GUARD_ERROR:
574 : 0 : result = SPDK_NVME_SC_GUARD_CHECK_ERROR;
575 : 0 : break;
576 : 0 : default:
577 [ # # ]: 0 : SPDK_UNREACHABLE();
578 : : }
579 : :
580 : 0 : return result;
581 : : }
582 : :
583 : : /*
584 : : * Return data_wrs to pool starting from \b data_wr
585 : : * Request's own response and data WR are excluded
586 : : */
587 : : static void
588 : 7859400 : _nvmf_rdma_request_free_data(struct spdk_nvmf_rdma_request *rdma_req,
589 : : struct ibv_send_wr *data_wr,
590 : : struct spdk_mempool *pool)
591 : : {
592 : 21 : struct spdk_nvmf_rdma_request_data *work_requests[SPDK_NVMF_MAX_SGL_ENTRIES];
593 : : struct spdk_nvmf_rdma_request_data *nvmf_data;
594 : : struct ibv_send_wr *next_send_wr;
595 [ # # ]: 7859400 : uint64_t req_wrid = (uint64_t)&rdma_req->data_wr;
596 : 7859400 : uint32_t num_wrs = 0;
597 : :
598 [ + + + + : 16950896 : while (data_wr && data_wr->wr_id == req_wrid) {
# # # # ]
599 : 9091496 : nvmf_data = SPDK_CONTAINEROF(data_wr, struct spdk_nvmf_rdma_request_data, wr);
600 [ - + # # : 9091496 : memset(nvmf_data->sgl, 0, sizeof(data_wr->sg_list[0]) * data_wr->num_sge);
# # # # ]
601 [ # # # # ]: 9091496 : data_wr->num_sge = 0;
602 [ # # # # ]: 9091496 : next_send_wr = data_wr->next;
603 [ + + # # : 9091496 : if (data_wr != &rdma_req->data.wr) {
# # ]
604 [ # # # # ]: 1293849 : data_wr->next = NULL;
605 [ - + # # ]: 1293849 : assert(num_wrs < SPDK_NVMF_MAX_SGL_ENTRIES);
606 [ # # # # : 1293849 : work_requests[num_wrs] = nvmf_data;
# # ]
607 : 1293849 : num_wrs++;
608 : 0 : }
609 [ + + + + : 9091496 : data_wr = (!next_send_wr || next_send_wr == &rdma_req->rsp.wr) ? NULL : next_send_wr;
# # # # ]
610 : : }
611 : :
612 [ + + ]: 7859400 : if (num_wrs) {
613 : 199896 : spdk_mempool_put_bulk(pool, (void **) work_requests, num_wrs);
614 : 0 : }
615 : 7859400 : }
616 : :
617 : : static void
618 : 7798060 : nvmf_rdma_request_free_data(struct spdk_nvmf_rdma_request *rdma_req,
619 : : struct spdk_nvmf_rdma_transport *rtransport)
620 : : {
621 [ # # # # ]: 7798060 : rdma_req->num_outstanding_data_wr = 0;
622 : :
623 [ # # # # : 7798060 : _nvmf_rdma_request_free_data(rdma_req, rdma_req->transfer_wr, rtransport->data_wr_pool);
# # # # ]
624 : :
625 [ - + # # : 7798060 : if (rdma_req->remaining_tranfer_in_wrs) {
# # ]
626 [ # # # # ]: 0 : _nvmf_rdma_request_free_data(rdma_req, rdma_req->remaining_tranfer_in_wrs,
627 [ # # # # ]: 0 : rtransport->data_wr_pool);
628 [ # # # # ]: 0 : rdma_req->remaining_tranfer_in_wrs = NULL;
629 : 0 : }
630 : :
631 [ # # # # : 7798060 : rdma_req->data.wr.next = NULL;
# # # # ]
632 [ # # # # : 7798060 : rdma_req->rsp.wr.next = NULL;
# # # # ]
633 : 7798060 : }
634 : :
635 : : static void
636 : 0 : nvmf_rdma_dump_request(struct spdk_nvmf_rdma_request *req)
637 : : {
638 [ # # # # : 0 : SPDK_ERRLOG("\t\tRequest Data From Pool: %d\n", req->req.data_from_pool);
# # # # ]
639 [ # # # # : 0 : if (req->req.cmd) {
# # # # ]
640 [ # # # # : 0 : SPDK_ERRLOG("\t\tRequest opcode: %d\n", req->req.cmd->nvmf_cmd.opcode);
# # # # #
# # # ]
641 : 0 : }
642 [ # # # # : 0 : if (req->recv) {
# # ]
643 [ # # # # : 0 : SPDK_ERRLOG("\t\tRequest recv wr_id%lu\n", req->recv->wr.wr_id);
# # # # #
# ]
644 : 0 : }
645 : 0 : }
646 : :
647 : : static void
648 : 0 : nvmf_rdma_dump_qpair_contents(struct spdk_nvmf_rdma_qpair *rqpair)
649 : : {
650 : : int i;
651 : :
652 [ # # # # : 0 : SPDK_ERRLOG("Dumping contents of queue pair (QID %d)\n", rqpair->qpair.qid);
# # ]
653 [ # # # # : 0 : for (i = 0; i < rqpair->max_queue_depth; i++) {
# # # # ]
654 [ # # # # : 0 : if (rqpair->resources->reqs[i].state != RDMA_REQUEST_STATE_FREE) {
# # # # #
# # # # #
# # ]
655 [ # # # # : 0 : nvmf_rdma_dump_request(&rqpair->resources->reqs[i]);
# # # # #
# ]
656 : 0 : }
657 : 0 : }
658 : 0 : }
659 : :
660 : : static void
661 : 281 : nvmf_rdma_resources_destroy(struct spdk_nvmf_rdma_resources *resources)
662 : : {
663 [ # # # # ]: 281 : spdk_free(resources->cmds);
664 [ # # # # ]: 281 : spdk_free(resources->cpls);
665 [ # # # # ]: 281 : spdk_free(resources->bufs);
666 [ # # # # ]: 281 : spdk_free(resources->reqs);
667 [ # # # # ]: 281 : spdk_free(resources->recvs);
668 : 281 : free(resources);
669 : 281 : }
670 : :
671 : :
672 : : static struct spdk_nvmf_rdma_resources *
673 : 281 : nvmf_rdma_resources_create(struct spdk_nvmf_rdma_resource_opts *opts)
674 : : {
675 : : struct spdk_nvmf_rdma_resources *resources;
676 : : struct spdk_nvmf_rdma_request *rdma_req;
677 : : struct spdk_nvmf_rdma_recv *rdma_recv;
678 : 281 : struct spdk_rdma_provider_qp *qp = NULL;
679 : 281 : struct spdk_rdma_provider_srq *srq = NULL;
680 : 281 : struct ibv_recv_wr *bad_wr = NULL;
681 : 3 : struct spdk_rdma_utils_memory_translation translation;
682 : : uint32_t i;
683 : 281 : int rc = 0;
684 : :
685 : 281 : resources = calloc(1, sizeof(struct spdk_nvmf_rdma_resources));
686 [ - + ]: 281 : if (!resources) {
687 : 0 : SPDK_ERRLOG("Unable to allocate resources for receive queue.\n");
688 : 0 : return NULL;
689 : : }
690 : :
691 [ # # # # : 281 : resources->reqs = spdk_zmalloc(opts->max_queue_depth * sizeof(*resources->reqs),
# # # # ]
692 : : 0x1000, NULL, SPDK_ENV_LCORE_ID_ANY, SPDK_MALLOC_DMA);
693 [ # # # # : 281 : resources->recvs = spdk_zmalloc(opts->max_queue_depth * sizeof(*resources->recvs),
# # # # ]
694 : : 0x1000, NULL, SPDK_ENV_LCORE_ID_ANY, SPDK_MALLOC_DMA);
695 [ # # # # : 281 : resources->cmds = spdk_zmalloc(opts->max_queue_depth * sizeof(*resources->cmds),
# # # # ]
696 : : 0x1000, NULL, SPDK_ENV_LCORE_ID_ANY, SPDK_MALLOC_DMA);
697 [ # # # # : 281 : resources->cpls = spdk_zmalloc(opts->max_queue_depth * sizeof(*resources->cpls),
# # # # ]
698 : : 0x1000, NULL, SPDK_ENV_LCORE_ID_ANY, SPDK_MALLOC_DMA);
699 : :
700 [ + - # # : 281 : if (opts->in_capsule_data_size > 0) {
# # ]
701 [ # # # # : 281 : resources->bufs = spdk_zmalloc(opts->max_queue_depth * opts->in_capsule_data_size,
# # # # #
# # # ]
702 : : 0x1000, NULL, SPDK_ENV_LCORE_ID_ANY,
703 : : SPDK_MALLOC_DMA);
704 : 0 : }
705 : :
706 [ + - + - : 281 : if (!resources->reqs || !resources->recvs || !resources->cmds ||
+ - # # #
# # # # #
# # # # #
# ]
707 [ + - + - : 281 : !resources->cpls || (opts->in_capsule_data_size && !resources->bufs)) {
- + # # #
# # # # #
# # ]
708 : 0 : SPDK_ERRLOG("Unable to allocate sufficient memory for RDMA queue.\n");
709 : 0 : goto cleanup;
710 : : }
711 : :
712 [ - + - + : 281 : SPDK_DEBUGLOG(rdma, "Command Array: %p Length: %lx\n",
# # # # #
# # # #
# ]
713 : : resources->cmds, opts->max_queue_depth * sizeof(*resources->cmds));
714 [ - + - + : 281 : SPDK_DEBUGLOG(rdma, "Completion Array: %p Length: %lx\n",
# # # # #
# # # #
# ]
715 : : resources->cpls, opts->max_queue_depth * sizeof(*resources->cpls));
716 [ + - # # : 281 : if (resources->bufs) {
# # ]
717 [ - + - + : 281 : SPDK_DEBUGLOG(rdma, "In Capsule Data Array: %p Length: %x\n",
# # # # #
# # # # #
# # # # ]
718 : : resources->bufs, opts->max_queue_depth *
719 : : opts->in_capsule_data_size);
720 : 0 : }
721 : :
722 : : /* Initialize queues */
723 [ # # # # : 281 : STAILQ_INIT(&resources->incoming_queue);
# # # # #
# # # # #
# # ]
724 [ # # # # : 281 : STAILQ_INIT(&resources->free_queue);
# # # # #
# # # # #
# # ]
725 : :
726 [ + + + - : 281 : if (opts->shared) {
# # # # ]
727 [ # # # # ]: 281 : srq = (struct spdk_rdma_provider_srq *)opts->qp;
728 : 0 : } else {
729 [ # # # # ]: 0 : qp = (struct spdk_rdma_provider_qp *)opts->qp;
730 : : }
731 : :
732 [ + + # # : 1114777 : for (i = 0; i < opts->max_queue_depth; i++) {
# # ]
733 [ # # # # : 1114496 : rdma_recv = &resources->recvs[i];
# # ]
734 [ # # # # : 1114496 : rdma_recv->qpair = opts->qpair;
# # # # ]
735 : :
736 : : /* Set up memory to receive commands */
737 [ + - # # : 1114496 : if (resources->bufs) {
# # ]
738 [ # # # # : 2228864 : rdma_recv->buf = (void *)((uintptr_t)resources->bufs + (i *
# # # # ]
739 [ # # # # ]: 1114496 : opts->in_capsule_data_size));
740 : 0 : }
741 : :
742 [ # # # # : 1114496 : rdma_recv->rdma_wr.type = RDMA_WR_TYPE_RECV;
# # ]
743 : :
744 [ # # # # : 1114496 : rdma_recv->sgl[0].addr = (uintptr_t)&resources->cmds[i];
# # # # #
# # # # #
# # ]
745 [ # # # # : 1114496 : rdma_recv->sgl[0].length = sizeof(resources->cmds[i]);
# # # # #
# ]
746 [ # # # # : 1114496 : rc = spdk_rdma_utils_get_translation(opts->map, &resources->cmds[i], sizeof(resources->cmds[i]),
# # # # #
# ]
747 : : &translation);
748 [ - + ]: 1114496 : if (rc) {
749 : 0 : goto cleanup;
750 : : }
751 [ # # # # : 1114496 : rdma_recv->sgl[0].lkey = spdk_rdma_utils_memory_translation_get_lkey(&translation);
# # # # #
# ]
752 [ # # # # : 1114496 : rdma_recv->wr.num_sge = 1;
# # ]
753 : :
754 [ + - # # : 1114496 : if (rdma_recv->buf) {
# # ]
755 [ # # # # : 1114496 : rdma_recv->sgl[1].addr = (uintptr_t)rdma_recv->buf;
# # # # #
# # # #
# ]
756 [ # # # # : 1114496 : rdma_recv->sgl[1].length = opts->in_capsule_data_size;
# # # # #
# # # #
# ]
757 [ # # # # : 1114496 : rc = spdk_rdma_utils_get_translation(opts->map, rdma_recv->buf, opts->in_capsule_data_size,
# # # # #
# # # ]
758 : : &translation);
759 [ - + ]: 1114496 : if (rc) {
760 : 0 : goto cleanup;
761 : : }
762 [ # # # # : 1114496 : rdma_recv->sgl[1].lkey = spdk_rdma_utils_memory_translation_get_lkey(&translation);
# # # # #
# ]
763 [ # # # # : 1114496 : rdma_recv->wr.num_sge++;
# # ]
764 : 0 : }
765 : :
766 [ # # # # : 1114496 : rdma_recv->wr.wr_id = (uintptr_t)&rdma_recv->rdma_wr;
# # # # ]
767 [ # # # # : 1114496 : rdma_recv->wr.sg_list = rdma_recv->sgl;
# # # # ]
768 [ + + ]: 1114496 : if (srq) {
769 [ # # ]: 1114112 : spdk_rdma_provider_srq_queue_recv_wrs(srq, &rdma_recv->wr);
770 : 0 : } else {
771 [ # # ]: 384 : spdk_rdma_provider_qp_queue_recv_wrs(qp, &rdma_recv->wr);
772 : : }
773 : 0 : }
774 : :
775 [ + + # # : 1114777 : for (i = 0; i < opts->max_queue_depth; i++) {
# # ]
776 [ # # # # : 1114496 : rdma_req = &resources->reqs[i];
# # ]
777 : :
778 [ + + # # : 1114496 : if (opts->qpair != NULL) {
# # ]
779 [ # # # # : 384 : rdma_req->req.qpair = &opts->qpair->qpair;
# # # # #
# # # ]
780 : 0 : } else {
781 [ # # # # : 1114112 : rdma_req->req.qpair = NULL;
# # ]
782 : : }
783 [ # # # # : 1114496 : rdma_req->req.cmd = NULL;
# # ]
784 [ # # # # : 1114496 : rdma_req->req.iovcnt = 0;
# # ]
785 [ # # # # : 1114496 : rdma_req->req.stripped_data = NULL;
# # ]
786 : :
787 : : /* Set up memory to send responses */
788 [ # # # # : 1114496 : rdma_req->req.rsp = &resources->cpls[i];
# # # # #
# # # ]
789 : :
790 [ # # # # : 1114496 : rdma_req->rsp.sgl[0].addr = (uintptr_t)&resources->cpls[i];
# # # # #
# # # # #
# # ]
791 [ # # # # : 1114496 : rdma_req->rsp.sgl[0].length = sizeof(resources->cpls[i]);
# # # # #
# ]
792 [ # # # # : 1114496 : rc = spdk_rdma_utils_get_translation(opts->map, &resources->cpls[i], sizeof(resources->cpls[i]),
# # # # #
# ]
793 : : &translation);
794 [ - + ]: 1114496 : if (rc) {
795 : 0 : goto cleanup;
796 : : }
797 [ # # # # : 1114496 : rdma_req->rsp.sgl[0].lkey = spdk_rdma_utils_memory_translation_get_lkey(&translation);
# # # # #
# ]
798 : :
799 [ # # # # : 1114496 : rdma_req->rsp_wr.type = RDMA_WR_TYPE_SEND;
# # ]
800 [ # # # # : 1114496 : rdma_req->rsp.wr.wr_id = (uintptr_t)&rdma_req->rsp_wr;
# # # # #
# ]
801 [ # # # # : 1114496 : rdma_req->rsp.wr.next = NULL;
# # # # ]
802 [ # # # # : 1114496 : rdma_req->rsp.wr.opcode = IBV_WR_SEND;
# # # # ]
803 [ # # # # : 1114496 : rdma_req->rsp.wr.send_flags = IBV_SEND_SIGNALED;
# # # # ]
804 [ # # # # : 1114496 : rdma_req->rsp.wr.sg_list = rdma_req->rsp.sgl;
# # # # #
# # # ]
805 [ # # # # : 1114496 : rdma_req->rsp.wr.num_sge = SPDK_COUNTOF(rdma_req->rsp.sgl);
# # # # ]
806 : :
807 : : /* Set up memory for data buffers */
808 [ # # # # : 1114496 : rdma_req->data_wr.type = RDMA_WR_TYPE_DATA;
# # ]
809 [ # # # # : 1114496 : rdma_req->data.wr.wr_id = (uintptr_t)&rdma_req->data_wr;
# # # # #
# ]
810 [ # # # # : 1114496 : rdma_req->data.wr.next = NULL;
# # # # ]
811 [ # # # # : 1114496 : rdma_req->data.wr.send_flags = IBV_SEND_SIGNALED;
# # # # ]
812 [ # # # # : 1114496 : rdma_req->data.wr.sg_list = rdma_req->data.sgl;
# # # # #
# # # ]
813 [ # # # # : 1114496 : rdma_req->data.wr.num_sge = SPDK_COUNTOF(rdma_req->data.sgl);
# # # # ]
814 : :
815 : : /* Initialize request state to FREE */
816 [ # # # # ]: 1114496 : rdma_req->state = RDMA_REQUEST_STATE_FREE;
817 [ # # # # : 1114496 : STAILQ_INSERT_TAIL(&resources->free_queue, rdma_req, state_link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
818 : 0 : }
819 : :
820 [ + + ]: 281 : if (srq) {
821 : 278 : rc = spdk_rdma_provider_srq_flush_recv_wrs(srq, &bad_wr);
822 : 0 : } else {
823 : 3 : rc = spdk_rdma_provider_qp_flush_recv_wrs(qp, &bad_wr);
824 : : }
825 : :
826 [ - + ]: 281 : if (rc) {
827 : 0 : goto cleanup;
828 : : }
829 : :
830 : 281 : return resources;
831 : :
832 : 0 : cleanup:
833 : 0 : nvmf_rdma_resources_destroy(resources);
834 : 0 : return NULL;
835 : 0 : }
836 : :
837 : : static void
838 : 2453 : nvmf_rdma_qpair_clean_ibv_events(struct spdk_nvmf_rdma_qpair *rqpair)
839 : : {
840 : : struct spdk_nvmf_rdma_ibv_event_ctx *ctx, *tctx;
841 [ - + # # : 2453 : STAILQ_FOREACH_SAFE(ctx, &rqpair->ibv_events, link, tctx) {
# # # # #
# # # # #
# # ]
842 [ # # # # ]: 0 : ctx->rqpair = NULL;
843 : : /* Memory allocated for ctx is freed in nvmf_rdma_qpair_process_ibv_event */
844 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->ibv_events, ctx, spdk_nvmf_rdma_ibv_event_ctx, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
845 : 0 : }
846 : 2453 : }
847 : :
848 : : static void nvmf_rdma_poller_destroy(struct spdk_nvmf_rdma_poller *poller);
849 : :
850 : : static void
851 : 2453 : nvmf_rdma_qpair_destroy(struct spdk_nvmf_rdma_qpair *rqpair)
852 : : {
853 : : struct spdk_nvmf_rdma_recv *rdma_recv, *recv_tmp;
854 : 2453 : struct ibv_recv_wr *bad_recv_wr = NULL;
855 : : int rc;
856 : :
857 [ + + + - : 2453 : spdk_trace_record(TRACE_RDMA_QP_DESTROY, 0, 0, (uintptr_t)rqpair);
# # # # #
# # # # #
# # ]
858 : :
859 [ - + # # : 2453 : if (rqpair->qd != 0) {
# # ]
860 [ # # ]: 0 : struct spdk_nvmf_qpair *qpair = &rqpair->qpair;
861 [ # # # # ]: 0 : struct spdk_nvmf_rdma_transport *rtransport = SPDK_CONTAINEROF(qpair->transport,
862 : : struct spdk_nvmf_rdma_transport, transport);
863 : : struct spdk_nvmf_rdma_request *req;
864 : 0 : uint32_t i, max_req_count = 0;
865 : :
866 [ # # # # ]: 0 : SPDK_WARNLOG("Destroying qpair when queue depth is %d\n", rqpair->qd);
867 : :
868 [ # # # # : 0 : if (rqpair->srq == NULL) {
# # ]
869 : 0 : nvmf_rdma_dump_qpair_contents(rqpair);
870 [ # # # # ]: 0 : max_req_count = rqpair->max_queue_depth;
871 [ # # # # : 0 : } else if (rqpair->poller && rqpair->resources) {
# # # # #
# # # ]
872 [ # # # # : 0 : max_req_count = rqpair->poller->max_srq_depth;
# # # # ]
873 : 0 : }
874 : :
875 [ # # # # : 0 : SPDK_DEBUGLOG(rdma, "Release incomplete requests\n");
# # ]
876 [ # # ]: 0 : for (i = 0; i < max_req_count; i++) {
877 [ # # # # : 0 : req = &rqpair->resources->reqs[i];
# # # # #
# ]
878 [ # # # # : 0 : if (req->req.qpair == qpair && req->state != RDMA_REQUEST_STATE_FREE) {
# # # # #
# # # #
# ]
879 : : /* nvmf_rdma_request_process checks qpair ibv and internal state
880 : : * and completes a request */
881 : 0 : nvmf_rdma_request_process(rtransport, req);
882 : 0 : }
883 : 0 : }
884 [ # # # # : 0 : assert(rqpair->qd == 0);
# # # # ]
885 : 0 : }
886 : :
887 [ + - # # : 2453 : if (rqpair->poller) {
# # ]
888 [ # # # # : 2453 : RB_REMOVE(qpairs_tree, &rqpair->poller->qpairs, rqpair);
# # ]
889 : :
890 [ + - + - : 2453 : if (rqpair->srq != NULL && rqpair->resources != NULL) {
# # # # #
# # # ]
891 : : /* Drop all received but unprocessed commands for this queue and return them to SRQ */
892 [ - + # # : 2453 : STAILQ_FOREACH_SAFE(rdma_recv, &rqpair->resources->incoming_queue, link, recv_tmp) {
# # # # #
# # # # #
# # # # #
# ]
893 [ # # # # : 0 : if (rqpair == rdma_recv->qpair) {
# # ]
894 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->resources->incoming_queue, rdma_recv, spdk_nvmf_rdma_recv, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
895 [ # # # # : 0 : spdk_rdma_provider_srq_queue_recv_wrs(rqpair->srq, &rdma_recv->wr);
# # ]
896 [ # # # # ]: 0 : rc = spdk_rdma_provider_srq_flush_recv_wrs(rqpair->srq, &bad_recv_wr);
897 [ # # ]: 0 : if (rc) {
898 : 0 : SPDK_ERRLOG("Unable to re-post rx descriptor\n");
899 : 0 : }
900 : 0 : }
901 : 0 : }
902 : 0 : }
903 : 0 : }
904 : :
905 [ + - # # : 2453 : if (rqpair->cm_id) {
# # ]
906 [ + - # # : 2453 : if (rqpair->rdma_qp != NULL) {
# # ]
907 [ # # # # ]: 2453 : spdk_rdma_provider_qp_destroy(rqpair->rdma_qp);
908 [ # # # # ]: 2453 : rqpair->rdma_qp = NULL;
909 : 0 : }
910 : :
911 [ + - - + : 2453 : if (rqpair->poller != NULL && rqpair->srq == NULL) {
# # # # #
# # # ]
912 [ # # # # : 0 : rqpair->poller->required_num_wr -= MAX_WR_PER_QP(rqpair->max_queue_depth);
# # # # #
# # # # #
# # # # ]
913 : 0 : }
914 : 0 : }
915 : :
916 [ - + - - : 2453 : if (rqpair->srq == NULL && rqpair->resources != NULL) {
# # # # #
# # # ]
917 [ # # # # ]: 0 : nvmf_rdma_resources_destroy(rqpair->resources);
918 : 0 : }
919 : :
920 : 2453 : nvmf_rdma_qpair_clean_ibv_events(rqpair);
921 : :
922 [ + - # # : 2453 : if (rqpair->destruct_channel) {
# # ]
923 [ # # # # ]: 2453 : spdk_put_io_channel(rqpair->destruct_channel);
924 [ # # # # ]: 2453 : rqpair->destruct_channel = NULL;
925 : 0 : }
926 : :
927 [ + - - + : 2453 : if (rqpair->poller && rqpair->poller->need_destroy && RB_EMPTY(&rqpair->poller->qpairs)) {
- + - - #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
928 [ # # # # ]: 0 : nvmf_rdma_poller_destroy(rqpair->poller);
929 : 0 : }
930 : :
931 : : /* destroy cm_id last so cma device will not be freed before we destroy the cq. */
932 [ + - # # : 2453 : if (rqpair->cm_id) {
# # ]
933 [ # # # # ]: 2453 : rdma_destroy_id(rqpair->cm_id);
934 : 0 : }
935 : :
936 : 2453 : free(rqpair);
937 : 2453 : }
938 : :
939 : : static int
940 : 15 : nvmf_rdma_resize_cq(struct spdk_nvmf_rdma_qpair *rqpair, struct spdk_nvmf_rdma_device *device)
941 : : {
942 : : struct spdk_nvmf_rdma_poller *rpoller;
943 : : int rc, num_cqe, required_num_wr;
944 : :
945 : : /* Enlarge CQ size dynamically */
946 [ # # # # ]: 15 : rpoller = rqpair->poller;
947 [ # # # # : 15 : required_num_wr = rpoller->required_num_wr + MAX_WR_PER_QP(rqpair->max_queue_depth);
# # # # #
# # # #
# ]
948 [ # # # # ]: 15 : num_cqe = rpoller->num_cqe;
949 [ + + ]: 15 : if (num_cqe < required_num_wr) {
950 [ # # # # : 12 : num_cqe = spdk_max(num_cqe * 2, required_num_wr);
# # ]
951 [ # # # # : 12 : num_cqe = spdk_min(num_cqe, device->attr.max_cqe);
# # # # #
# # # #
# ]
952 : 0 : }
953 : :
954 [ + + # # : 15 : if (rpoller->num_cqe != num_cqe) {
# # ]
955 [ + + # # : 12 : if (device->context->device->transport_type == IBV_TRANSPORT_IWARP) {
# # # # #
# # # #
# ]
956 [ # # # # ]: 3 : SPDK_ERRLOG("iWARP doesn't support CQ resize. Current capacity %u, required %u\n"
957 : : "Using CQ of insufficient size may lead to CQ overrun\n", rpoller->num_cqe, num_cqe);
958 : 3 : return -1;
959 : : }
960 [ + + # # : 9 : if (required_num_wr > device->attr.max_cqe) {
# # # # ]
961 [ # # # # : 3 : SPDK_ERRLOG("RDMA CQE requirement (%d) exceeds device max_cqe limitation (%d)\n",
# # ]
962 : : required_num_wr, device->attr.max_cqe);
963 : 3 : return -1;
964 : : }
965 : :
966 [ - + - + : 6 : SPDK_DEBUGLOG(rdma, "Resize RDMA CQ from %d to %d\n", rpoller->num_cqe, num_cqe);
# # # # #
# ]
967 [ # # # # ]: 6 : rc = ibv_resize_cq(rpoller->cq, num_cqe);
968 [ + + ]: 6 : if (rc) {
969 [ # # # # ]: 3 : SPDK_ERRLOG("RDMA CQ resize failed: errno %d: %s\n", errno, spdk_strerror(errno));
970 : 3 : return -1;
971 : : }
972 : :
973 [ # # # # ]: 3 : rpoller->num_cqe = num_cqe;
974 : 0 : }
975 : :
976 [ # # # # ]: 6 : rpoller->required_num_wr = required_num_wr;
977 : 6 : return 0;
978 : 0 : }
979 : :
980 : : static int
981 : 2453 : nvmf_rdma_qpair_initialize(struct spdk_nvmf_qpair *qpair)
982 : : {
983 : : struct spdk_nvmf_rdma_qpair *rqpair;
984 : : struct spdk_nvmf_rdma_transport *rtransport;
985 : : struct spdk_nvmf_transport *transport;
986 : 0 : struct spdk_nvmf_rdma_resource_opts opts;
987 : : struct spdk_nvmf_rdma_device *device;
988 : 2453 : struct spdk_rdma_provider_qp_init_attr qp_init_attr = {};
989 : :
990 : 2453 : rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
991 [ # # # # ]: 2453 : device = rqpair->device;
992 : :
993 : 2453 : qp_init_attr.qp_context = rqpair;
994 [ # # # # : 2453 : qp_init_attr.pd = device->pd;
# # ]
995 [ # # # # : 2453 : qp_init_attr.send_cq = rqpair->poller->cq;
# # # # #
# ]
996 [ # # # # : 2453 : qp_init_attr.recv_cq = rqpair->poller->cq;
# # # # #
# ]
997 : :
998 [ + - # # : 2453 : if (rqpair->srq) {
# # ]
999 [ # # # # : 2453 : qp_init_attr.srq = rqpair->srq->srq;
# # # # #
# ]
1000 : 0 : } else {
1001 [ # # # # : 0 : qp_init_attr.cap.max_recv_wr = rqpair->max_queue_depth;
# # # # ]
1002 : : }
1003 : :
1004 : : /* SEND, READ, and WRITE operations */
1005 [ # # # # : 2453 : qp_init_attr.cap.max_send_wr = (uint32_t)rqpair->max_queue_depth * 2;
# # # # ]
1006 [ # # # # : 2453 : qp_init_attr.cap.max_send_sge = spdk_min((uint32_t)device->attr.max_sge, NVMF_DEFAULT_TX_SGE);
# # # # #
# # # # #
# # # # ]
1007 [ # # # # : 2453 : qp_init_attr.cap.max_recv_sge = spdk_min((uint32_t)device->attr.max_sge, NVMF_DEFAULT_RX_SGE);
# # # # #
# # # # #
# # # # ]
1008 [ # # # # : 2453 : qp_init_attr.stats = &rqpair->poller->stat.qp_stats;
# # # # #
# ]
1009 : :
1010 [ - + - - : 2453 : if (rqpair->srq == NULL && nvmf_rdma_resize_cq(rqpair, device) < 0) {
# # # # ]
1011 : 0 : SPDK_ERRLOG("Failed to resize the completion queue. Cannot initialize qpair.\n");
1012 : 0 : goto error;
1013 : : }
1014 : :
1015 [ # # # # : 2453 : rqpair->rdma_qp = spdk_rdma_provider_qp_create(rqpair->cm_id, &qp_init_attr);
# # # # ]
1016 [ - + # # : 2453 : if (!rqpair->rdma_qp) {
# # ]
1017 : 0 : goto error;
1018 : : }
1019 : :
1020 [ # # # # : 2453 : rqpair->qp_num = rqpair->rdma_qp->qp->qp_num;
# # # # #
# # # # #
# # ]
1021 : :
1022 [ # # # # : 2453 : rqpair->max_send_depth = spdk_min((uint32_t)(rqpair->max_queue_depth * 2),
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
1023 : : qp_init_attr.cap.max_send_wr);
1024 [ # # # # : 2453 : rqpair->max_send_sge = spdk_min(NVMF_DEFAULT_TX_SGE, qp_init_attr.cap.max_send_sge);
# # # # #
# # # #
# ]
1025 [ # # # # : 2453 : rqpair->max_recv_sge = spdk_min(NVMF_DEFAULT_RX_SGE, qp_init_attr.cap.max_recv_sge);
# # # # #
# # # #
# ]
1026 [ + + + - : 2453 : spdk_trace_record(TRACE_RDMA_QP_CREATE, 0, 0, (uintptr_t)rqpair);
# # # # #
# # # # #
# # ]
1027 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma, "New RDMA Connection: %p\n", qpair);
# # ]
1028 : :
1029 [ - + # # : 2453 : if (rqpair->poller->srq == NULL) {
# # # # #
# ]
1030 [ # # # # ]: 0 : rtransport = SPDK_CONTAINEROF(qpair->transport, struct spdk_nvmf_rdma_transport, transport);
1031 [ # # ]: 0 : transport = &rtransport->transport;
1032 : :
1033 [ # # # # : 0 : opts.qp = rqpair->rdma_qp;
# # ]
1034 [ # # # # : 0 : opts.map = device->map;
# # ]
1035 : 0 : opts.qpair = rqpair;
1036 [ # # ]: 0 : opts.shared = false;
1037 [ # # # # : 0 : opts.max_queue_depth = rqpair->max_queue_depth;
# # ]
1038 [ # # # # : 0 : opts.in_capsule_data_size = transport->opts.in_capsule_data_size;
# # # # ]
1039 : :
1040 [ # # # # ]: 0 : rqpair->resources = nvmf_rdma_resources_create(&opts);
1041 : :
1042 [ # # # # : 0 : if (!rqpair->resources) {
# # ]
1043 : 0 : SPDK_ERRLOG("Unable to allocate resources for receive queue.\n");
1044 [ # # # # ]: 0 : rdma_destroy_qp(rqpair->cm_id);
1045 : 0 : goto error;
1046 : : }
1047 : 0 : } else {
1048 [ # # # # : 2453 : rqpair->resources = rqpair->poller->resources;
# # # # #
# # # ]
1049 : : }
1050 : :
1051 [ # # # # ]: 2453 : rqpair->current_recv_depth = 0;
1052 [ # # # # : 2453 : STAILQ_INIT(&rqpair->pending_rdma_read_queue);
# # # # #
# # # # #
# # ]
1053 [ # # # # : 2453 : STAILQ_INIT(&rqpair->pending_rdma_write_queue);
# # # # #
# # # # #
# # ]
1054 [ # # # # : 2453 : STAILQ_INIT(&rqpair->pending_rdma_send_queue);
# # # # #
# # # # #
# # ]
1055 [ # # # # : 2453 : rqpair->qpair.queue_depth = 0;
# # ]
1056 : :
1057 : 2453 : return 0;
1058 : :
1059 : 0 : error:
1060 [ # # # # ]: 0 : rdma_destroy_id(rqpair->cm_id);
1061 [ # # # # ]: 0 : rqpair->cm_id = NULL;
1062 : 0 : return -1;
1063 : 0 : }
1064 : :
1065 : : /* Append the given recv wr structure to the resource structs outstanding recvs list. */
1066 : : /* This function accepts either a single wr or the first wr in a linked list. */
1067 : : static void
1068 : 7794851 : nvmf_rdma_qpair_queue_recv_wrs(struct spdk_nvmf_rdma_qpair *rqpair, struct ibv_recv_wr *first)
1069 : : {
1070 [ # # # # : 7794851 : struct spdk_nvmf_rdma_transport *rtransport = SPDK_CONTAINEROF(rqpair->qpair.transport,
# # ]
1071 : : struct spdk_nvmf_rdma_transport, transport);
1072 : :
1073 [ + + # # : 7794851 : if (rqpair->srq != NULL) {
# # ]
1074 [ # # # # ]: 7794833 : spdk_rdma_provider_srq_queue_recv_wrs(rqpair->srq, first);
1075 : 0 : } else {
1076 [ + - # # : 18 : if (spdk_rdma_provider_qp_queue_recv_wrs(rqpair->rdma_qp, first)) {
# # ]
1077 [ # # # # : 18 : STAILQ_INSERT_TAIL(&rqpair->poller->qpairs_pending_recv, rqpair, recv_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
1078 : 0 : }
1079 : : }
1080 : :
1081 [ - + - + : 7794851 : if (rtransport->rdma_opts.no_wr_batching) {
# # # # #
# ]
1082 [ # # # # ]: 0 : _poller_submit_recvs(rtransport, rqpair->poller);
1083 : 0 : }
1084 : 7794851 : }
1085 : :
1086 : : static inline void
1087 : 789722 : request_transfer_in(struct spdk_nvmf_request *req)
1088 : : {
1089 : : struct spdk_nvmf_rdma_request *rdma_req;
1090 : : struct spdk_nvmf_qpair *qpair;
1091 : : struct spdk_nvmf_rdma_qpair *rqpair;
1092 : : struct spdk_nvmf_rdma_transport *rtransport;
1093 : :
1094 [ # # # # ]: 789722 : qpair = req->qpair;
1095 : 789722 : rdma_req = SPDK_CONTAINEROF(req, struct spdk_nvmf_rdma_request, req);
1096 : 789722 : rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
1097 [ # # # # : 789722 : rtransport = SPDK_CONTAINEROF(rqpair->qpair.transport,
# # ]
1098 : : struct spdk_nvmf_rdma_transport, transport);
1099 : :
1100 [ - + # # : 789722 : assert(req->xfer == SPDK_NVME_DATA_HOST_TO_CONTROLLER);
# # # # ]
1101 [ - + # # ]: 789722 : assert(rdma_req != NULL);
1102 : :
1103 [ + + # # : 789722 : if (spdk_rdma_provider_qp_queue_send_wrs(rqpair->rdma_qp, rdma_req->transfer_wr)) {
# # # # #
# ]
1104 [ # # # # : 149039 : STAILQ_INSERT_TAIL(&rqpair->poller->qpairs_pending_send, rqpair, send_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
1105 : 0 : }
1106 [ - + - + : 789722 : if (rtransport->rdma_opts.no_wr_batching) {
# # # # #
# ]
1107 [ # # # # ]: 0 : _poller_submit_sends(rtransport, rqpair->poller);
1108 : 0 : }
1109 : :
1110 [ - + # # : 789722 : assert(rqpair->current_read_depth + rdma_req->num_outstanding_data_wr <= rqpair->max_read_depth);
# # # # #
# # # # #
# # ]
1111 [ # # # # : 789722 : rqpair->current_read_depth += rdma_req->num_outstanding_data_wr;
# # # # #
# ]
1112 [ - + # # : 789722 : assert(rqpair->current_send_depth + rdma_req->num_outstanding_data_wr <= rqpair->max_send_depth);
# # # # #
# # # # #
# # ]
1113 [ # # # # : 789722 : rqpair->current_send_depth += rdma_req->num_outstanding_data_wr;
# # # # ]
1114 : 789722 : }
1115 : :
1116 : : static inline void
1117 : 61340 : nvmf_rdma_request_reset_transfer_in(struct spdk_nvmf_rdma_request *rdma_req,
1118 : : struct spdk_nvmf_rdma_transport *rtransport)
1119 : : {
1120 : : /* Put completed WRs back to pool and move transfer_wr pointer */
1121 [ # # # # : 61340 : _nvmf_rdma_request_free_data(rdma_req, rdma_req->transfer_wr, rtransport->data_wr_pool);
# # # # ]
1122 [ # # # # : 61340 : rdma_req->transfer_wr = rdma_req->remaining_tranfer_in_wrs;
# # # # ]
1123 [ # # # # ]: 61340 : rdma_req->remaining_tranfer_in_wrs = NULL;
1124 [ # # # # : 61340 : rdma_req->num_outstanding_data_wr = rdma_req->num_remaining_data_wr;
# # # # ]
1125 [ # # # # ]: 61340 : rdma_req->num_remaining_data_wr = 0;
1126 : 61340 : }
1127 : :
1128 : : static inline int
1129 : 61340 : request_prepare_transfer_in_part(struct spdk_nvmf_request *req, uint32_t num_reads_available)
1130 : : {
1131 : : struct spdk_nvmf_rdma_request *rdma_req;
1132 : : struct ibv_send_wr *wr;
1133 : : uint32_t i;
1134 : :
1135 : 61340 : rdma_req = SPDK_CONTAINEROF(req, struct spdk_nvmf_rdma_request, req);
1136 : :
1137 [ - + # # : 61340 : assert(req->xfer == SPDK_NVME_DATA_HOST_TO_CONTROLLER);
# # # # ]
1138 [ - + # # ]: 61340 : assert(rdma_req != NULL);
1139 [ - + # # ]: 61340 : assert(num_reads_available > 0);
1140 [ - + # # : 61340 : assert(rdma_req->num_outstanding_data_wr > num_reads_available);
# # # # ]
1141 [ # # # # ]: 61340 : wr = rdma_req->transfer_wr;
1142 : :
1143 [ + + ]: 203958 : for (i = 0; i < num_reads_available - 1; i++) {
1144 [ # # # # ]: 142618 : wr = wr->next;
1145 : 0 : }
1146 : :
1147 [ # # # # : 61340 : rdma_req->remaining_tranfer_in_wrs = wr->next;
# # # # ]
1148 [ # # # # : 61340 : rdma_req->num_remaining_data_wr = rdma_req->num_outstanding_data_wr - num_reads_available;
# # # # ]
1149 [ # # # # ]: 61340 : rdma_req->num_outstanding_data_wr = num_reads_available;
1150 : : /* Break chain of WRs to send only part. Once this portion completes, we continue sending RDMA_READs */
1151 [ # # # # ]: 61340 : wr->next = NULL;
1152 : :
1153 : 61340 : return 0;
1154 : : }
1155 : :
1156 : : static int
1157 : 7794851 : request_transfer_out(struct spdk_nvmf_request *req, int *data_posted)
1158 : : {
1159 : 7794851 : int num_outstanding_data_wr = 0;
1160 : : struct spdk_nvmf_rdma_request *rdma_req;
1161 : : struct spdk_nvmf_qpair *qpair;
1162 : : struct spdk_nvmf_rdma_qpair *rqpair;
1163 : : struct spdk_nvme_cpl *rsp;
1164 : 7794851 : struct ibv_send_wr *first = NULL;
1165 : : struct spdk_nvmf_rdma_transport *rtransport;
1166 : :
1167 [ # # ]: 7794851 : *data_posted = 0;
1168 [ # # # # ]: 7794851 : qpair = req->qpair;
1169 [ # # # # : 7794851 : rsp = &req->rsp->nvme_cpl;
# # ]
1170 : 7794851 : rdma_req = SPDK_CONTAINEROF(req, struct spdk_nvmf_rdma_request, req);
1171 : 7794851 : rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
1172 [ # # # # : 7794851 : rtransport = SPDK_CONTAINEROF(rqpair->qpair.transport,
# # ]
1173 : : struct spdk_nvmf_rdma_transport, transport);
1174 : :
1175 : : /* Advance our sq_head pointer */
1176 [ + + # # : 7794851 : if (qpair->sq_head == qpair->sq_head_max) {
# # # # #
# ]
1177 [ # # # # ]: 63859 : qpair->sq_head = 0;
1178 : 0 : } else {
1179 [ # # ]: 7730992 : qpair->sq_head++;
1180 : : }
1181 [ # # # # : 7794851 : rsp->sqhd = qpair->sq_head;
# # # # ]
1182 : :
1183 : : /* queue the capsule for the recv buffer */
1184 [ - + # # : 7794851 : assert(rdma_req->recv != NULL);
# # # # ]
1185 : :
1186 [ # # # # : 7794851 : nvmf_rdma_qpair_queue_recv_wrs(rqpair, &rdma_req->recv->wr);
# # ]
1187 : :
1188 [ # # # # ]: 7794851 : rdma_req->recv = NULL;
1189 [ - + # # : 7794851 : assert(rqpair->current_recv_depth > 0);
# # # # ]
1190 [ # # ]: 7794851 : rqpair->current_recv_depth--;
1191 : :
1192 : : /* Build the response which consists of optional
1193 : : * RDMA WRITEs to transfer data, plus an RDMA SEND
1194 : : * containing the response.
1195 : : */
1196 [ # # # # ]: 7794851 : first = &rdma_req->rsp.wr;
1197 : :
1198 [ + + # # : 7794851 : if (spdk_unlikely(rsp->status.sc != SPDK_NVME_SC_SUCCESS)) {
# # # # ]
1199 : : /* On failure, data was not read from the controller. So clear the
1200 : : * number of outstanding data WRs to zero.
1201 : : */
1202 [ # # # # ]: 1284058 : rdma_req->num_outstanding_data_wr = 0;
1203 [ + + # # : 6510793 : } else if (req->xfer == SPDK_NVME_DATA_CONTROLLER_TO_HOST) {
# # ]
1204 [ # # # # ]: 3817278 : first = rdma_req->transfer_wr;
1205 [ # # ]: 3817278 : *data_posted = 1;
1206 [ # # # # ]: 3817278 : num_outstanding_data_wr = rdma_req->num_outstanding_data_wr;
1207 : 0 : }
1208 [ + + # # : 7794851 : if (spdk_rdma_provider_qp_queue_send_wrs(rqpair->rdma_qp, first)) {
# # ]
1209 [ # # # # : 1196300 : STAILQ_INSERT_TAIL(&rqpair->poller->qpairs_pending_send, rqpair, send_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
1210 : 0 : }
1211 [ - + - + : 7794851 : if (rtransport->rdma_opts.no_wr_batching) {
# # # # #
# ]
1212 [ # # # # ]: 0 : _poller_submit_sends(rtransport, rqpair->poller);
1213 : 0 : }
1214 : :
1215 : : /* +1 for the rsp wr */
1216 [ - + # # : 7794851 : assert(rqpair->current_send_depth + num_outstanding_data_wr + 1 <= rqpair->max_send_depth);
# # # # #
# # # ]
1217 [ # # # # : 7794851 : rqpair->current_send_depth += num_outstanding_data_wr + 1;
# # ]
1218 : :
1219 : 7794851 : return 0;
1220 : : }
1221 : :
1222 : : static int
1223 : 2453 : nvmf_rdma_event_accept(struct rdma_cm_id *id, struct spdk_nvmf_rdma_qpair *rqpair)
1224 : : {
1225 : 0 : struct spdk_nvmf_rdma_accept_private_data accept_data;
1226 : 2453 : struct rdma_conn_param ctrlr_event_data = {};
1227 : : int rc;
1228 : :
1229 : 2453 : accept_data.recfmt = 0;
1230 [ # # # # ]: 2453 : accept_data.crqsize = rqpair->max_queue_depth;
1231 : :
1232 : 2453 : ctrlr_event_data.private_data = &accept_data;
1233 [ # # ]: 2453 : ctrlr_event_data.private_data_len = sizeof(accept_data);
1234 [ + - # # : 2453 : if (id->ps == RDMA_PS_TCP) {
# # ]
1235 : 2453 : ctrlr_event_data.responder_resources = 0; /* We accept 0 reads from the host */
1236 [ # # # # : 2453 : ctrlr_event_data.initiator_depth = rqpair->max_read_depth;
# # ]
1237 : 0 : }
1238 : :
1239 : : /* Configure infinite retries for the initiator side qpair.
1240 : : * We need to pass this value to the initiator to prevent the
1241 : : * initiator side NIC from completing SEND requests back to the
1242 : : * initiator with status rnr_retry_count_exceeded. */
1243 : 2453 : ctrlr_event_data.rnr_retry_count = 0x7;
1244 : :
1245 : : /* When qpair is created without use of rdma cm API, an additional
1246 : : * information must be provided to initiator in the connection response:
1247 : : * whether qpair is using SRQ and its qp_num
1248 : : * Fields below are ignored by rdma cm if qpair has been
1249 : : * created using rdma cm API. */
1250 [ # # # # : 2453 : ctrlr_event_data.srq = rqpair->srq ? 1 : 0;
# # ]
1251 [ # # # # : 2453 : ctrlr_event_data.qp_num = rqpair->qp_num;
# # ]
1252 : :
1253 [ # # # # ]: 2453 : rc = spdk_rdma_provider_qp_accept(rqpair->rdma_qp, &ctrlr_event_data);
1254 [ - + ]: 2453 : if (rc) {
1255 [ # # ]: 0 : SPDK_ERRLOG("Error %d on spdk_rdma_provider_qp_accept\n", errno);
1256 : 0 : } else {
1257 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma, "Sent back the accept\n");
# # ]
1258 : : }
1259 : :
1260 : 2453 : return rc;
1261 : : }
1262 : :
1263 : : static void
1264 : 0 : nvmf_rdma_event_reject(struct rdma_cm_id *id, enum spdk_nvmf_rdma_transport_error error)
1265 : : {
1266 : 0 : struct spdk_nvmf_rdma_reject_private_data rej_data;
1267 : :
1268 : 0 : rej_data.recfmt = 0;
1269 : 0 : rej_data.sts = error;
1270 : :
1271 : 0 : rdma_reject(id, &rej_data, sizeof(rej_data));
1272 : 0 : }
1273 : :
1274 : : static int
1275 : 2453 : nvmf_rdma_connect(struct spdk_nvmf_transport *transport, struct rdma_cm_event *event)
1276 : : {
1277 : : struct spdk_nvmf_rdma_transport *rtransport;
1278 : 2453 : struct spdk_nvmf_rdma_qpair *rqpair = NULL;
1279 : : struct spdk_nvmf_rdma_port *port;
1280 : 2453 : struct rdma_conn_param *rdma_param = NULL;
1281 : 2453 : const struct spdk_nvmf_rdma_request_private_data *private_data = NULL;
1282 : : uint16_t max_queue_depth;
1283 : : uint16_t max_read_depth;
1284 : :
1285 : 2453 : rtransport = SPDK_CONTAINEROF(transport, struct spdk_nvmf_rdma_transport, transport);
1286 : :
1287 [ - + # # : 2453 : assert(event->id != NULL); /* Impossible. Can't even reject the connection. */
# # # # ]
1288 [ - + # # : 2453 : assert(event->id->verbs != NULL); /* Impossible. No way to handle this. */
# # # # #
# # # ]
1289 : :
1290 [ # # # # ]: 2453 : rdma_param = &event->param.conn;
1291 [ + - # # : 2453 : if (rdma_param->private_data == NULL ||
# # # # ]
1292 [ - + # # ]: 2453 : rdma_param->private_data_len < sizeof(struct spdk_nvmf_rdma_request_private_data)) {
1293 : 0 : SPDK_ERRLOG("connect request: no private data provided\n");
1294 [ # # # # ]: 0 : nvmf_rdma_event_reject(event->id, SPDK_NVMF_RDMA_ERROR_INVALID_PRIVATE_DATA_LENGTH);
1295 : 0 : return -1;
1296 : : }
1297 : :
1298 [ # # # # ]: 2453 : private_data = rdma_param->private_data;
1299 [ - + # # : 2453 : if (private_data->recfmt != 0) {
# # ]
1300 : 0 : SPDK_ERRLOG("Received RDMA private data with RECFMT != 0\n");
1301 [ # # # # ]: 0 : nvmf_rdma_event_reject(event->id, SPDK_NVMF_RDMA_ERROR_INVALID_RECFMT);
1302 : 0 : return -1;
1303 : : }
1304 : :
1305 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma, "Connect Recv on fabric intf name %s, dev_name %s\n",
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # #
# ]
1306 : : event->id->verbs->device->name, event->id->verbs->device->dev_name);
1307 : :
1308 [ # # # # : 2453 : port = event->listen_id->context;
# # # # ]
1309 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma, "Listen Id was %p with verbs %p. ListenAddr: %p\n",
# # # # #
# # # # #
# # # # ]
1310 : : event->listen_id, event->listen_id->verbs, port);
1311 : :
1312 : : /* Figure out the supported queue depth. This is a multi-step process
1313 : : * that takes into account hardware maximums, host provided values,
1314 : : * and our target's internal memory limits */
1315 : :
1316 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma, "Calculating Queue Depth\n");
# # ]
1317 : :
1318 : : /* Start with the maximum queue depth allowed by the target */
1319 [ # # # # : 2453 : max_queue_depth = rtransport->transport.opts.max_queue_depth;
# # # # ]
1320 [ # # # # : 2453 : max_read_depth = rtransport->transport.opts.max_queue_depth;
# # # # ]
1321 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma, "Target Max Queue Depth: %d\n",
# # # # #
# # # #
# ]
1322 : : rtransport->transport.opts.max_queue_depth);
1323 : :
1324 : : /* Next check the local NIC's hardware limitations */
1325 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma,
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
1326 : : "Local NIC Max Send/Recv Queue Depth: %d Max Read/Write Queue Depth: %d\n",
1327 : : port->device->attr.max_qp_wr, port->device->attr.max_qp_rd_atom);
1328 [ # # # # : 2453 : max_queue_depth = spdk_min(max_queue_depth, port->device->attr.max_qp_wr);
# # # # #
# # # # #
# # # # #
# # # ]
1329 [ # # # # : 2453 : max_read_depth = spdk_min(max_read_depth, port->device->attr.max_qp_init_rd_atom);
# # # # #
# # # # #
# # # # #
# # # ]
1330 : :
1331 : : /* Next check the remote NIC's hardware limitations */
1332 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma,
# # # # #
# # # #
# ]
1333 : : "Host (Initiator) NIC Max Incoming RDMA R/W operations: %d Max Outgoing RDMA R/W operations: %d\n",
1334 : : rdma_param->initiator_depth, rdma_param->responder_resources);
1335 : : /* from man3 rdma_get_cm_event
1336 : : * responder_resources - Specifies the number of responder resources that is requested by the recipient.
1337 : : * The responder_resources field must match the initiator depth specified by the remote node when running
1338 : : * the rdma_connect and rdma_accept functions. */
1339 [ - + # # : 2453 : if (rdma_param->responder_resources != 0) {
# # ]
1340 [ # # # # : 0 : if (private_data->qid) {
# # ]
1341 [ # # # # : 0 : SPDK_DEBUGLOG(rdma, "Host (Initiator) is not allowed to use RDMA operations,"
# # # # #
# ]
1342 : : " responder_resources must be 0 but set to %u\n",
1343 : : rdma_param->responder_resources);
1344 : 0 : } else {
1345 [ # # # # ]: 0 : SPDK_WARNLOG("Host (Initiator) is not allowed to use RDMA operations,"
1346 : : " responder_resources must be 0 but set to %u\n",
1347 : : rdma_param->responder_resources);
1348 : : }
1349 : 0 : }
1350 : : /* from man3 rdma_get_cm_event
1351 : : * initiator_depth - Specifies the maximum number of outstanding RDMA read operations that the recipient holds.
1352 : : * The initiator_depth field must match the responder resources specified by the remote node when running
1353 : : * the rdma_connect and rdma_accept functions. */
1354 [ - + # # : 2453 : if (rdma_param->initiator_depth == 0) {
# # ]
1355 : 0 : SPDK_ERRLOG("Host (Initiator) doesn't support RDMA_READ or atomic operations\n");
1356 [ # # # # ]: 0 : nvmf_rdma_event_reject(event->id, SPDK_NVMF_RDMA_ERROR_INVALID_IRD);
1357 : 0 : return -1;
1358 : : }
1359 [ # # # # : 2453 : max_read_depth = spdk_min(max_read_depth, rdma_param->initiator_depth);
# # # # #
# ]
1360 : :
1361 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma, "Host Receive Queue Size: %d\n", private_data->hrqsize);
# # # # #
# ]
1362 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma, "Host Send Queue Size: %d\n", private_data->hsqsize);
# # # # #
# ]
1363 [ # # # # : 2453 : max_queue_depth = spdk_min(max_queue_depth, private_data->hrqsize);
# # # # #
# ]
1364 [ + + # # : 2453 : max_queue_depth = spdk_min(max_queue_depth, private_data->hsqsize + 1);
# # # # #
# # # #
# ]
1365 : :
1366 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma, "Final Negotiated Queue Depth: %d R/W Depth: %d\n",
# # ]
1367 : : max_queue_depth, max_read_depth);
1368 : :
1369 : 2453 : rqpair = calloc(1, sizeof(struct spdk_nvmf_rdma_qpair));
1370 [ - + ]: 2453 : if (rqpair == NULL) {
1371 : 0 : SPDK_ERRLOG("Could not allocate new connection.\n");
1372 [ # # # # ]: 0 : nvmf_rdma_event_reject(event->id, SPDK_NVMF_RDMA_ERROR_NO_RESOURCES);
1373 : 0 : return -1;
1374 : : }
1375 : :
1376 [ # # # # : 2453 : rqpair->device = port->device;
# # # # ]
1377 [ # # # # ]: 2453 : rqpair->max_queue_depth = max_queue_depth;
1378 [ # # # # ]: 2453 : rqpair->max_read_depth = max_read_depth;
1379 [ # # # # : 2453 : rqpair->cm_id = event->id;
# # # # ]
1380 [ # # # # : 2453 : rqpair->listen_id = event->listen_id;
# # # # ]
1381 [ # # # # : 2453 : rqpair->qpair.transport = transport;
# # ]
1382 [ # # # # : 2453 : STAILQ_INIT(&rqpair->ibv_events);
# # # # #
# # # # #
# # ]
1383 : : /* use qid from the private data to determine the qpair type
1384 : : qid will be set to the appropriate value when the controller is created */
1385 [ # # # # : 2453 : rqpair->qpair.qid = private_data->qid;
# # # # #
# ]
1386 [ # # # # : 2453 : rqpair->qpair.numa.id_valid = 1;
# # ]
1387 [ # # # # : 2453 : rqpair->qpair.numa.id = spdk_rdma_cm_id_get_numa_id(rqpair->cm_id);
# # # # #
# ]
1388 : :
1389 [ # # # # : 2453 : event->id->context = &rqpair->qpair;
# # # # #
# ]
1390 : :
1391 [ # # # # : 2453 : spdk_nvmf_tgt_new_qpair(transport->tgt, &rqpair->qpair);
# # ]
1392 : :
1393 : 2453 : return 0;
1394 : 0 : }
1395 : :
1396 : : static inline void
1397 : 8134800 : nvmf_rdma_setup_wr(struct ibv_send_wr *wr, struct ibv_send_wr *next,
1398 : : enum spdk_nvme_data_transfer xfer)
1399 : : {
1400 [ + + ]: 8134800 : if (xfer == SPDK_NVME_DATA_CONTROLLER_TO_HOST) {
1401 [ # # # # ]: 5484373 : wr->opcode = IBV_WR_RDMA_WRITE;
1402 [ # # # # ]: 5484373 : wr->send_flags = 0;
1403 [ # # # # ]: 5484373 : wr->next = next;
1404 [ + - ]: 2650427 : } else if (xfer == SPDK_NVME_DATA_HOST_TO_CONTROLLER) {
1405 [ # # # # ]: 2650427 : wr->opcode = IBV_WR_RDMA_READ;
1406 [ # # # # ]: 2650427 : wr->send_flags = IBV_SEND_SIGNALED;
1407 [ # # # # ]: 2650427 : wr->next = NULL;
1408 : 0 : } else {
1409 [ # # ]: 0 : assert(0);
1410 : : }
1411 : 8134800 : }
1412 : :
1413 : : static int
1414 : 1147952 : nvmf_request_alloc_wrs(struct spdk_nvmf_rdma_transport *rtransport,
1415 : : struct spdk_nvmf_rdma_request *rdma_req,
1416 : : uint32_t num_sgl_descriptors)
1417 : : {
1418 : 18 : struct spdk_nvmf_rdma_request_data *work_requests[SPDK_NVMF_MAX_SGL_ENTRIES];
1419 : : struct spdk_nvmf_rdma_request_data *current_data_wr;
1420 : : uint32_t i;
1421 : :
1422 [ - + ]: 1147952 : if (spdk_unlikely(num_sgl_descriptors > SPDK_NVMF_MAX_SGL_ENTRIES)) {
1423 : 0 : SPDK_ERRLOG("Requested too much entries (%u), the limit is %u\n",
1424 : : num_sgl_descriptors, SPDK_NVMF_MAX_SGL_ENTRIES);
1425 : 0 : return -EINVAL;
1426 : : }
1427 : :
1428 [ + + # # : 1147952 : if (spdk_unlikely(spdk_mempool_get_bulk(rtransport->data_wr_pool, (void **)work_requests,
# # ]
1429 : : num_sgl_descriptors))) {
1430 : 978414 : return -ENOMEM;
1431 : : }
1432 : :
1433 [ # # ]: 169538 : current_data_wr = &rdma_req->data;
1434 : :
1435 [ + + ]: 1463402 : for (i = 0; i < num_sgl_descriptors; i++) {
1436 [ # # # # : 1293864 : nvmf_rdma_setup_wr(¤t_data_wr->wr, &work_requests[i]->wr, rdma_req->req.xfer);
# # # # #
# # # # #
# # ]
1437 [ # # # # : 1293864 : current_data_wr->wr.next = &work_requests[i]->wr;
# # # # #
# # # #
# ]
1438 [ # # # # : 1293864 : current_data_wr = work_requests[i];
# # ]
1439 [ # # # # : 1293864 : current_data_wr->wr.sg_list = current_data_wr->sgl;
# # # # ]
1440 [ # # # # : 1293864 : current_data_wr->wr.wr_id = rdma_req->data.wr.wr_id;
# # # # #
# # # #
# ]
1441 : 0 : }
1442 : :
1443 [ # # # # : 169538 : nvmf_rdma_setup_wr(¤t_data_wr->wr, &rdma_req->rsp.wr, rdma_req->req.xfer);
# # # # #
# # # ]
1444 : :
1445 : 169538 : return 0;
1446 : 0 : }
1447 : :
1448 : : static inline void
1449 : 6671398 : nvmf_rdma_setup_request(struct spdk_nvmf_rdma_request *rdma_req)
1450 : : {
1451 [ # # # # ]: 6671398 : struct ibv_send_wr *wr = &rdma_req->data.wr;
1452 [ # # # # : 6671398 : struct spdk_nvme_sgl_descriptor *sgl = &rdma_req->req.cmd->nvme_cmd.dptr.sgl1;
# # # # #
# # # ]
1453 : :
1454 [ # # # # : 6671398 : wr->wr.rdma.rkey = sgl->keyed.key;
# # # # #
# # # #
# ]
1455 [ # # # # : 6671398 : wr->wr.rdma.remote_addr = sgl->address;
# # # # #
# # # ]
1456 [ # # # # : 6671398 : nvmf_rdma_setup_wr(wr, &rdma_req->rsp.wr, rdma_req->req.xfer);
# # # # #
# ]
1457 : 6671398 : }
1458 : :
1459 : : static inline void
1460 : 3 : nvmf_rdma_update_remote_addr(struct spdk_nvmf_rdma_request *rdma_req, uint32_t num_wrs)
1461 : : {
1462 [ # # # # ]: 3 : struct ibv_send_wr *wr = &rdma_req->data.wr;
1463 [ # # # # : 3 : struct spdk_nvme_sgl_descriptor *sgl = &rdma_req->req.cmd->nvme_cmd.dptr.sgl1;
# # # # #
# # # ]
1464 : : uint32_t i;
1465 : : int j;
1466 : 3 : uint64_t remote_addr_offset = 0;
1467 : :
1468 [ + + ]: 9 : for (i = 0; i < num_wrs; ++i) {
1469 [ # # # # : 6 : wr->wr.rdma.rkey = sgl->keyed.key;
# # # # #
# # # #
# ]
1470 [ # # # # : 6 : wr->wr.rdma.remote_addr = sgl->address + remote_addr_offset;
# # # # #
# # # ]
1471 [ + + # # : 57 : for (j = 0; j < wr->num_sge; ++j) {
# # # # ]
1472 [ # # # # : 51 : remote_addr_offset += wr->sg_list[j].length;
# # # # #
# ]
1473 : 0 : }
1474 [ # # # # ]: 6 : wr = wr->next;
1475 : 0 : }
1476 : 3 : }
1477 : :
1478 : : static int
1479 : 6003958 : nvmf_rdma_fill_wr_sgl(struct spdk_nvmf_rdma_device *device,
1480 : : struct spdk_nvmf_rdma_request *rdma_req,
1481 : : struct ibv_send_wr *wr,
1482 : : uint32_t total_length)
1483 : : {
1484 : 45 : struct spdk_rdma_utils_memory_translation mem_translation;
1485 : : struct ibv_sge *sg_ele;
1486 : : struct iovec *iov;
1487 : : uint32_t lkey, remaining;
1488 : : int rc;
1489 : :
1490 [ # # # # ]: 6003958 : wr->num_sge = 0;
1491 : :
1492 [ + + + - : 29685418 : while (total_length && wr->num_sge < SPDK_NVMF_MAX_SGL_ENTRIES) {
# # # # ]
1493 [ # # # # : 23681460 : iov = &rdma_req->req.iov[rdma_req->iovpos];
# # # # #
# # # ]
1494 [ # # # # : 23681460 : rc = spdk_rdma_utils_get_translation(device->map, iov->iov_base, iov->iov_len, &mem_translation);
# # # # #
# # # ]
1495 [ - + ]: 23681460 : if (spdk_unlikely(rc)) {
1496 : 0 : return rc;
1497 : : }
1498 : :
1499 : 23681460 : lkey = spdk_rdma_utils_memory_translation_get_lkey(&mem_translation);
1500 [ # # # # : 23681460 : sg_ele = &wr->sg_list[wr->num_sge];
# # # # #
# ]
1501 [ # # # # : 23681460 : remaining = spdk_min((uint32_t)iov->iov_len - rdma_req->offset, total_length);
# # # # #
# # # # #
# # # # ]
1502 : :
1503 [ # # # # ]: 23681460 : sg_ele->lkey = lkey;
1504 [ # # # # : 23681460 : sg_ele->addr = (uintptr_t)iov->iov_base + rdma_req->offset;
# # # # #
# # # ]
1505 [ # # # # ]: 23681460 : sg_ele->length = remaining;
1506 [ - + - + : 23681460 : SPDK_DEBUGLOG(rdma, "sge[%d] %p addr 0x%"PRIx64", len %u\n", wr->num_sge, sg_ele, sg_ele->addr,
# # # # #
# # # # #
# # # # ]
1507 : : sg_ele->length);
1508 [ # # # # : 23681460 : rdma_req->offset += sg_ele->length;
# # # # ]
1509 [ # # # # ]: 23681460 : total_length -= sg_ele->length;
1510 [ # # # # ]: 23681460 : wr->num_sge++;
1511 : :
1512 [ + + # # : 23681460 : if (rdma_req->offset == iov->iov_len) {
# # # # #
# ]
1513 [ # # # # ]: 23124988 : rdma_req->offset = 0;
1514 [ # # ]: 23124988 : rdma_req->iovpos++;
1515 : 0 : }
1516 : : }
1517 : :
1518 [ - + ]: 6003958 : if (spdk_unlikely(total_length)) {
1519 : 0 : SPDK_ERRLOG("Not enough SG entries to hold data buffer\n");
1520 : 0 : return -EINVAL;
1521 : : }
1522 : :
1523 : 6003958 : return 0;
1524 : 0 : }
1525 : :
1526 : : static int
1527 : 30 : nvmf_rdma_fill_wr_sgl_with_dif(struct spdk_nvmf_rdma_device *device,
1528 : : struct spdk_nvmf_rdma_request *rdma_req,
1529 : : struct ibv_send_wr *wr,
1530 : : uint32_t total_length,
1531 : : uint32_t num_extra_wrs)
1532 : : {
1533 : 30 : struct spdk_rdma_utils_memory_translation mem_translation;
1534 [ # # # # : 30 : struct spdk_dif_ctx *dif_ctx = &rdma_req->req.dif.dif_ctx;
# # ]
1535 : : struct ibv_sge *sg_ele;
1536 : : struct iovec *iov;
1537 : : struct iovec *rdma_iov;
1538 : : uint32_t lkey, remaining;
1539 : : uint32_t remaining_data_block, data_block_size, md_size;
1540 : : uint32_t sge_len;
1541 : : int rc;
1542 : :
1543 [ # # # # : 30 : data_block_size = dif_ctx->block_size - dif_ctx->md_size;
# # # # ]
1544 : :
1545 [ + + # # : 30 : if (spdk_likely(!rdma_req->req.stripped_data)) {
# # # # ]
1546 [ # # # # ]: 15 : rdma_iov = rdma_req->req.iov;
1547 : 15 : remaining_data_block = data_block_size;
1548 [ # # # # ]: 15 : md_size = dif_ctx->md_size;
1549 : 0 : } else {
1550 [ # # # # : 15 : rdma_iov = rdma_req->req.stripped_data->iov;
# # # # ]
1551 [ - + # # : 15 : total_length = total_length / dif_ctx->block_size * data_block_size;
# # ]
1552 : 15 : remaining_data_block = total_length;
1553 : 15 : md_size = 0;
1554 : : }
1555 : :
1556 [ # # # # ]: 30 : wr->num_sge = 0;
1557 : :
1558 [ + + + + : 75 : while (total_length && (num_extra_wrs || wr->num_sge < SPDK_NVMF_MAX_SGL_ENTRIES)) {
+ - # # #
# ]
1559 [ # # # # : 45 : iov = rdma_iov + rdma_req->iovpos;
# # ]
1560 [ # # # # : 45 : rc = spdk_rdma_utils_get_translation(device->map, iov->iov_base, iov->iov_len, &mem_translation);
# # # # #
# # # ]
1561 [ - + ]: 45 : if (spdk_unlikely(rc)) {
1562 : 0 : return rc;
1563 : : }
1564 : :
1565 : 45 : lkey = spdk_rdma_utils_memory_translation_get_lkey(&mem_translation);
1566 [ # # # # : 45 : sg_ele = &wr->sg_list[wr->num_sge];
# # # # #
# ]
1567 [ # # # # : 45 : remaining = spdk_min((uint32_t)iov->iov_len - rdma_req->offset, total_length);
# # # # #
# # # # #
# # # # ]
1568 : :
1569 [ + + ]: 159 : while (remaining) {
1570 [ + + # # : 114 : if (wr->num_sge >= SPDK_NVMF_MAX_SGL_ENTRIES) {
# # ]
1571 [ + - + - : 3 : if (num_extra_wrs > 0 && wr->next) {
# # # # ]
1572 [ # # # # ]: 3 : wr = wr->next;
1573 [ # # # # ]: 3 : wr->num_sge = 0;
1574 [ # # # # : 3 : sg_ele = &wr->sg_list[wr->num_sge];
# # # # #
# ]
1575 : 3 : num_extra_wrs--;
1576 : 0 : } else {
1577 : 0 : break;
1578 : : }
1579 : 0 : }
1580 [ # # # # ]: 114 : sg_ele->lkey = lkey;
1581 [ # # # # : 114 : sg_ele->addr = (uintptr_t)((char *)iov->iov_base + rdma_req->offset);
# # # # #
# # # #
# ]
1582 [ # # ]: 114 : sge_len = spdk_min(remaining, remaining_data_block);
1583 [ # # # # ]: 114 : sg_ele->length = sge_len;
1584 [ - + - + : 114 : SPDK_DEBUGLOG(rdma, "sge[%d] %p addr 0x%"PRIx64", len %u\n", wr->num_sge, sg_ele,
# # # # #
# # # # #
# # # # ]
1585 : : sg_ele->addr, sg_ele->length);
1586 : 114 : remaining -= sge_len;
1587 : 114 : remaining_data_block -= sge_len;
1588 [ # # # # ]: 114 : rdma_req->offset += sge_len;
1589 : 114 : total_length -= sge_len;
1590 : :
1591 [ # # ]: 114 : sg_ele++;
1592 [ # # # # ]: 114 : wr->num_sge++;
1593 : :
1594 [ + + ]: 114 : if (remaining_data_block == 0) {
1595 : : /* skip metadata */
1596 [ # # # # ]: 102 : rdma_req->offset += md_size;
1597 : 102 : total_length -= md_size;
1598 : : /* Metadata that do not fit this IO buffer will be included in the next IO buffer */
1599 [ # # ]: 102 : remaining -= spdk_min(remaining, md_size);
1600 : 102 : remaining_data_block = data_block_size;
1601 : 0 : }
1602 : :
1603 [ + + ]: 114 : if (remaining == 0) {
1604 : : /* By subtracting the size of the last IOV from the offset, we ensure that we skip
1605 : : the remaining metadata bits at the beginning of the next buffer */
1606 [ # # # # : 45 : rdma_req->offset -= spdk_min(iov->iov_len, rdma_req->offset);
# # # # #
# # # # #
# # # # #
# # # ]
1607 [ # # ]: 45 : rdma_req->iovpos++;
1608 : 0 : }
1609 : : }
1610 : : }
1611 : :
1612 [ - + ]: 30 : if (spdk_unlikely(total_length)) {
1613 : 0 : SPDK_ERRLOG("Not enough SG entries to hold data buffer\n");
1614 : 0 : return -EINVAL;
1615 : : }
1616 : :
1617 : 30 : return 0;
1618 : 0 : }
1619 : :
1620 : : static inline uint32_t
1621 : 24 : nvmf_rdma_calc_num_wrs(uint32_t length, uint32_t io_unit_size, uint32_t block_size)
1622 : : {
1623 : : /* estimate the number of SG entries and WRs needed to process the request */
1624 : 24 : uint32_t num_sge = 0;
1625 : : uint32_t i;
1626 [ - + ]: 24 : uint32_t num_buffers = SPDK_CEIL_DIV(length, io_unit_size);
1627 : :
1628 [ + + + - ]: 69 : for (i = 0; i < num_buffers && length > 0; i++) {
1629 [ # # ]: 45 : uint32_t buffer_len = spdk_min(length, io_unit_size);
1630 [ - + ]: 45 : uint32_t num_sge_in_block = SPDK_CEIL_DIV(buffer_len, block_size);
1631 : :
1632 [ + + ]: 45 : if (num_sge_in_block * block_size > buffer_len) {
1633 : 33 : ++num_sge_in_block;
1634 : 0 : }
1635 : 45 : num_sge += num_sge_in_block;
1636 : 45 : length -= buffer_len;
1637 : 0 : }
1638 [ # # ]: 24 : return SPDK_CEIL_DIV(num_sge, SPDK_NVMF_MAX_SGL_ENTRIES);
1639 : : }
1640 : :
1641 : : static int
1642 : 6671398 : nvmf_rdma_request_fill_iovs(struct spdk_nvmf_rdma_transport *rtransport,
1643 : : struct spdk_nvmf_rdma_device *device,
1644 : : struct spdk_nvmf_rdma_request *rdma_req)
1645 : : {
1646 : : struct spdk_nvmf_rdma_qpair *rqpair;
1647 : : struct spdk_nvmf_rdma_poll_group *rgroup;
1648 [ # # ]: 6671398 : struct spdk_nvmf_request *req = &rdma_req->req;
1649 [ # # # # ]: 6671398 : struct ibv_send_wr *wr = &rdma_req->data.wr;
1650 : : int rc;
1651 : 6671398 : uint32_t num_wrs = 1;
1652 : : uint32_t length;
1653 : :
1654 [ # # # # ]: 6671398 : rqpair = SPDK_CONTAINEROF(req->qpair, struct spdk_nvmf_rdma_qpair, qpair);
1655 [ # # # # : 6671398 : rgroup = rqpair->poller->group;
# # # # ]
1656 : :
1657 : : /* rdma wr specifics */
1658 : 6671398 : nvmf_rdma_setup_request(rdma_req);
1659 : :
1660 [ # # # # ]: 6671398 : length = req->length;
1661 [ + + # # : 6671398 : if (spdk_unlikely(req->dif_enabled)) {
# # # # ]
1662 [ # # # # : 24 : req->dif.orig_length = length;
# # ]
1663 [ # # # # ]: 24 : length = spdk_dif_get_length_with_md(length, &req->dif.dif_ctx);
1664 [ # # # # : 24 : req->dif.elba_length = length;
# # ]
1665 : 0 : }
1666 : :
1667 [ # # # # ]: 6671398 : rc = spdk_nvmf_request_get_buffers(req, &rgroup->group, &rtransport->transport,
1668 : 0 : length);
1669 [ + + ]: 6671398 : if (spdk_unlikely(rc != 0)) {
1670 : 2130806 : return rc;
1671 : : }
1672 : :
1673 [ - + # # : 4540592 : assert(req->iovcnt <= rqpair->max_send_sge);
# # # # #
# # # ]
1674 : :
1675 : : /* When dif_insert_or_strip is true and the I/O data length is greater than one block,
1676 : : * the stripped_buffers are got for DIF stripping. */
1677 [ + + + - : 4540592 : if (spdk_unlikely(req->dif_enabled && (req->xfer == SPDK_NVME_DATA_CONTROLLER_TO_HOST)
+ + + + #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
1678 : : && (req->dif.elba_length > req->dif.dif_ctx.block_size))) {
1679 [ # # ]: 21 : rc = nvmf_request_get_stripped_buffers(req, &rgroup->group,
1680 [ # # # # : 0 : &rtransport->transport, req->dif.orig_length);
# # # # ]
1681 [ + + ]: 21 : if (rc != 0) {
1682 [ - + - + : 12 : SPDK_INFOLOG(rdma, "Get stripped buffers fail %d, fallback to req.iov.\n", rc);
# # ]
1683 : 0 : }
1684 : 0 : }
1685 : :
1686 [ # # # # ]: 4540592 : rdma_req->iovpos = 0;
1687 : :
1688 [ + + # # : 4540592 : if (spdk_unlikely(req->dif_enabled)) {
# # # # ]
1689 [ # # # # : 24 : num_wrs = nvmf_rdma_calc_num_wrs(length, rtransport->transport.opts.io_unit_size,
# # # # ]
1690 [ # # # # : 0 : req->dif.dif_ctx.block_size);
# # # # ]
1691 [ + + ]: 24 : if (num_wrs > 1) {
1692 : 3 : rc = nvmf_request_alloc_wrs(rtransport, rdma_req, num_wrs - 1);
1693 [ - + ]: 3 : if (spdk_unlikely(rc != 0)) {
1694 : 0 : goto err_exit;
1695 : : }
1696 : 0 : }
1697 : :
1698 : 24 : rc = nvmf_rdma_fill_wr_sgl_with_dif(device, rdma_req, wr, length, num_wrs - 1);
1699 [ - + ]: 24 : if (spdk_unlikely(rc != 0)) {
1700 : 0 : goto err_exit;
1701 : : }
1702 : :
1703 [ + + ]: 24 : if (num_wrs > 1) {
1704 : 3 : nvmf_rdma_update_remote_addr(rdma_req, num_wrs);
1705 : 0 : }
1706 : 0 : } else {
1707 : 4540568 : rc = nvmf_rdma_fill_wr_sgl(device, rdma_req, wr, length);
1708 [ - + ]: 4540568 : if (spdk_unlikely(rc != 0)) {
1709 : 0 : goto err_exit;
1710 : : }
1711 : : }
1712 : :
1713 : : /* set the number of outstanding data WRs for this request. */
1714 [ # # # # ]: 4540592 : rdma_req->num_outstanding_data_wr = num_wrs;
1715 : :
1716 : 4540592 : return rc;
1717 : :
1718 : 0 : err_exit:
1719 [ # # # # ]: 0 : spdk_nvmf_request_free_buffers(req, &rgroup->group, &rtransport->transport);
1720 : 0 : nvmf_rdma_request_free_data(rdma_req, rtransport);
1721 [ # # # # ]: 0 : req->iovcnt = 0;
1722 : 0 : return rc;
1723 : 0 : }
1724 : :
1725 : : static int
1726 : 1147949 : nvmf_rdma_request_fill_iovs_multi_sgl(struct spdk_nvmf_rdma_transport *rtransport,
1727 : : struct spdk_nvmf_rdma_device *device,
1728 : : struct spdk_nvmf_rdma_request *rdma_req)
1729 : : {
1730 : : struct spdk_nvmf_rdma_qpair *rqpair;
1731 : : struct spdk_nvmf_rdma_poll_group *rgroup;
1732 : : struct ibv_send_wr *current_wr;
1733 [ # # ]: 1147949 : struct spdk_nvmf_request *req = &rdma_req->req;
1734 : : struct spdk_nvme_sgl_descriptor *inline_segment, *desc;
1735 : : uint32_t num_sgl_descriptors;
1736 : 1147949 : uint32_t lengths[SPDK_NVMF_MAX_SGL_ENTRIES], total_length = 0;
1737 : : uint32_t i;
1738 : : int rc;
1739 : :
1740 [ # # # # : 1147949 : rqpair = SPDK_CONTAINEROF(rdma_req->req.qpair, struct spdk_nvmf_rdma_qpair, qpair);
# # ]
1741 [ # # # # : 1147949 : rgroup = rqpair->poller->group;
# # # # ]
1742 : :
1743 [ # # # # : 1147949 : inline_segment = &req->cmd->nvme_cmd.dptr.sgl1;
# # # # #
# ]
1744 [ - + # # : 1147949 : assert(inline_segment->generic.type == SPDK_NVME_SGL_TYPE_LAST_SEGMENT);
# # # # #
# ]
1745 [ - + # # : 1147949 : assert(inline_segment->unkeyed.subtype == SPDK_NVME_SGL_SUBTYPE_OFFSET);
# # # # #
# ]
1746 : :
1747 [ # # # # : 1147949 : num_sgl_descriptors = inline_segment->unkeyed.length / sizeof(struct spdk_nvme_sgl_descriptor);
# # # # #
# ]
1748 [ - + # # ]: 1147949 : assert(num_sgl_descriptors <= SPDK_NVMF_MAX_SGL_ENTRIES);
1749 : :
1750 [ # # # # : 1147949 : desc = (struct spdk_nvme_sgl_descriptor *)rdma_req->recv->buf + inline_segment->address;
# # # # #
# # # #
# ]
1751 [ + + ]: 13373899 : for (i = 0; i < num_sgl_descriptors; i++) {
1752 [ + + # # : 12225950 : if (spdk_likely(!req->dif_enabled)) {
# # # # ]
1753 [ # # # # : 12225944 : lengths[i] = desc->keyed.length;
# # # # #
# # # ]
1754 : 0 : } else {
1755 [ # # # # : 6 : req->dif.orig_length += desc->keyed.length;
# # # # #
# # # ]
1756 [ # # # # : 6 : lengths[i] = spdk_dif_get_length_with_md(desc->keyed.length, &req->dif.dif_ctx);
# # # # #
# # # # #
# # ]
1757 [ # # # # : 6 : req->dif.elba_length += lengths[i];
# # # # #
# # # ]
1758 : : }
1759 [ # # # # : 12225950 : total_length += lengths[i];
# # ]
1760 [ # # ]: 12225950 : desc++;
1761 : 0 : }
1762 : :
1763 [ - + # # : 1147949 : if (spdk_unlikely(total_length > rtransport->transport.opts.max_io_size)) {
# # # # #
# ]
1764 [ # # # # : 0 : SPDK_ERRLOG("Multi SGL length 0x%x exceeds max io size 0x%x\n",
# # # # ]
1765 : : total_length, rtransport->transport.opts.max_io_size);
1766 [ # # # # : 0 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
# # # # #
# # # ]
1767 : 0 : return -EINVAL;
1768 : : }
1769 : :
1770 : 1147949 : rc = nvmf_request_alloc_wrs(rtransport, rdma_req, num_sgl_descriptors - 1);
1771 [ + + ]: 1147949 : if (spdk_unlikely(rc != 0)) {
1772 : 978414 : return -ENOMEM;
1773 : : }
1774 : :
1775 [ # # # # ]: 169535 : rc = spdk_nvmf_request_get_buffers(req, &rgroup->group, &rtransport->transport, total_length);
1776 [ - + ]: 169535 : if (spdk_unlikely(rc != 0)) {
1777 : 0 : nvmf_rdma_request_free_data(rdma_req, rtransport);
1778 : 0 : return rc;
1779 : : }
1780 : :
1781 : : /* When dif_insert_or_strip is true and the I/O data length is greater than one block,
1782 : : * the stripped_buffers are got for DIF stripping. */
1783 [ + + + - : 169535 : if (spdk_unlikely(req->dif_enabled && (req->xfer == SPDK_NVME_DATA_CONTROLLER_TO_HOST)
+ + + - #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
1784 : : && (req->dif.elba_length > req->dif.dif_ctx.block_size))) {
1785 [ # # ]: 3 : rc = nvmf_request_get_stripped_buffers(req, &rgroup->group,
1786 [ # # # # : 0 : &rtransport->transport, req->dif.orig_length);
# # # # ]
1787 [ - + ]: 3 : if (spdk_unlikely(rc != 0)) {
1788 [ # # # # : 0 : SPDK_INFOLOG(rdma, "Get stripped buffers fail %d, fallback to req.iov.\n", rc);
# # ]
1789 : 0 : }
1790 : 0 : }
1791 : :
1792 : : /* The first WR must always be the embedded data WR. This is how we unwind them later. */
1793 [ # # # # ]: 169535 : current_wr = &rdma_req->data.wr;
1794 [ - + # # ]: 169535 : assert(current_wr != NULL);
1795 : :
1796 [ # # # # ]: 169535 : req->length = 0;
1797 [ # # # # ]: 169535 : rdma_req->iovpos = 0;
1798 [ # # # # : 169535 : desc = (struct spdk_nvme_sgl_descriptor *)rdma_req->recv->buf + inline_segment->address;
# # # # #
# # # #
# ]
1799 [ + + ]: 1632931 : for (i = 0; i < num_sgl_descriptors; i++) {
1800 : : /* The descriptors must be keyed data block descriptors with an address, not an offset. */
1801 [ + - - + : 1463396 : if (spdk_unlikely(desc->generic.type != SPDK_NVME_SGL_TYPE_KEYED_DATA_BLOCK ||
# # # # #
# # # # #
# # ]
1802 : : desc->keyed.subtype != SPDK_NVME_SGL_SUBTYPE_ADDRESS)) {
1803 : 0 : rc = -EINVAL;
1804 : 0 : goto err_exit;
1805 : : }
1806 : :
1807 [ + + # # : 1463396 : if (spdk_likely(!req->dif_enabled)) {
# # # # ]
1808 [ # # # # : 1463390 : rc = nvmf_rdma_fill_wr_sgl(device, rdma_req, current_wr, lengths[i]);
# # ]
1809 : 0 : } else {
1810 : 6 : rc = nvmf_rdma_fill_wr_sgl_with_dif(device, rdma_req, current_wr,
1811 [ # # # # : 4 : lengths[i], 0);
# # ]
1812 : : }
1813 [ - + ]: 1463396 : if (spdk_unlikely(rc != 0)) {
1814 : 0 : rc = -ENOMEM;
1815 : 0 : goto err_exit;
1816 : : }
1817 : :
1818 [ # # # # : 1463396 : req->length += desc->keyed.length;
# # # # #
# ]
1819 [ # # # # : 1463396 : current_wr->wr.rdma.rkey = desc->keyed.key;
# # # # #
# # # #
# ]
1820 [ # # # # : 1463396 : current_wr->wr.rdma.remote_addr = desc->address;
# # # # #
# # # ]
1821 [ # # # # ]: 1463396 : current_wr = current_wr->next;
1822 [ # # ]: 1463396 : desc++;
1823 : 0 : }
1824 : :
1825 : : #ifdef SPDK_CONFIG_RDMA_SEND_WITH_INVAL
1826 : : /* Go back to the last descriptor in the list. */
1827 [ # # ]: 169535 : desc--;
1828 [ + + # # : 169535 : if ((device->attr.device_cap_flags & IBV_DEVICE_MEM_MGT_EXTENSIONS) != 0) {
# # # # ]
1829 [ - + # # : 169520 : if (desc->keyed.subtype == SPDK_NVME_SGL_SUBTYPE_INVALIDATE_KEY) {
# # # # ]
1830 [ # # # # : 0 : rdma_req->rsp.wr.opcode = IBV_WR_SEND_WITH_INV;
# # # # ]
1831 [ # # # # : 0 : rdma_req->rsp.wr.imm_data = desc->keyed.key;
# # # # #
# # # # #
# # ]
1832 : 0 : }
1833 : 0 : }
1834 : : #endif
1835 : :
1836 [ # # # # ]: 169535 : rdma_req->num_outstanding_data_wr = num_sgl_descriptors;
1837 : :
1838 : 169535 : return 0;
1839 : :
1840 : 0 : err_exit:
1841 [ # # # # ]: 0 : spdk_nvmf_request_free_buffers(req, &rgroup->group, &rtransport->transport);
1842 : 0 : nvmf_rdma_request_free_data(rdma_req, rtransport);
1843 : 0 : return rc;
1844 : 0 : }
1845 : :
1846 : : static int
1847 : 9757160 : nvmf_rdma_request_parse_sgl(struct spdk_nvmf_rdma_transport *rtransport,
1848 : : struct spdk_nvmf_rdma_device *device,
1849 : : struct spdk_nvmf_rdma_request *rdma_req)
1850 : : {
1851 [ # # ]: 9757160 : struct spdk_nvmf_request *req = &rdma_req->req;
1852 : : struct spdk_nvme_cpl *rsp;
1853 : : struct spdk_nvme_sgl_descriptor *sgl;
1854 : : int rc;
1855 : : uint32_t length;
1856 : :
1857 [ # # # # : 9757160 : rsp = &req->rsp->nvme_cpl;
# # ]
1858 [ # # # # : 9757160 : sgl = &req->cmd->nvme_cmd.dptr.sgl1;
# # # # #
# ]
1859 : :
1860 [ + + # # : 9757160 : if (sgl->generic.type == SPDK_NVME_SGL_TYPE_KEYED_DATA_BLOCK &&
# # # # #
# ]
1861 [ + + # # : 6671401 : (sgl->keyed.subtype == SPDK_NVME_SGL_SUBTYPE_ADDRESS ||
# # # # ]
1862 [ + - # # : 3319017 : sgl->keyed.subtype == SPDK_NVME_SGL_SUBTYPE_INVALIDATE_KEY)) {
# # ]
1863 : :
1864 [ # # # # : 6671401 : length = sgl->keyed.length;
# # ]
1865 [ + + # # : 6671401 : if (spdk_unlikely(length > rtransport->transport.opts.max_io_size)) {
# # # # #
# ]
1866 [ # # # # : 3 : SPDK_ERRLOG("SGL length 0x%x exceeds max io size 0x%x\n",
# # # # ]
1867 : : length, rtransport->transport.opts.max_io_size);
1868 [ # # # # : 3 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
# # ]
1869 : 3 : return -1;
1870 : : }
1871 : : #ifdef SPDK_CONFIG_RDMA_SEND_WITH_INVAL
1872 [ + + # # : 6671398 : if ((device->attr.device_cap_flags & IBV_DEVICE_MEM_MGT_EXTENSIONS) != 0) {
# # # # ]
1873 [ + + # # : 6671350 : if (sgl->keyed.subtype == SPDK_NVME_SGL_SUBTYPE_INVALIDATE_KEY) {
# # # # ]
1874 [ # # # # : 3319017 : rdma_req->rsp.wr.opcode = IBV_WR_SEND_WITH_INV;
# # # # ]
1875 [ # # # # : 3319017 : rdma_req->rsp.wr.imm_data = sgl->keyed.key;
# # # # #
# # # # #
# # ]
1876 : 0 : }
1877 : 0 : }
1878 : : #endif
1879 : :
1880 : : /* fill request length and populate iovs */
1881 [ # # # # ]: 6671398 : req->length = length;
1882 : :
1883 : 6671398 : rc = nvmf_rdma_request_fill_iovs(rtransport, device, rdma_req);
1884 [ + + ]: 6671398 : if (spdk_unlikely(rc < 0)) {
1885 [ - + ]: 2130806 : if (rc == -EINVAL) {
1886 : 0 : SPDK_ERRLOG("SGL length exceeds the max I/O size\n");
1887 [ # # # # : 0 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
# # ]
1888 : 0 : return -1;
1889 : : }
1890 : : /* No available buffers. Queue this request up. */
1891 [ - + - + : 2130806 : SPDK_DEBUGLOG(rdma, "No available large data buffers. Queueing request %p\n", rdma_req);
# # ]
1892 : 2130806 : return 0;
1893 : : }
1894 : :
1895 [ - + - + : 4540592 : SPDK_DEBUGLOG(rdma, "Request %p took %d buffer/s from central pool\n", rdma_req,
# # # # #
# ]
1896 : : req->iovcnt);
1897 : :
1898 : 4540592 : return 0;
1899 [ + + # # : 3085759 : } else if (sgl->generic.type == SPDK_NVME_SGL_TYPE_DATA_BLOCK &&
# # # # #
# ]
1900 [ + - # # : 1937810 : sgl->unkeyed.subtype == SPDK_NVME_SGL_SUBTYPE_OFFSET) {
# # ]
1901 [ # # # # ]: 1937810 : uint64_t offset = sgl->address;
1902 [ # # # # : 1937810 : uint32_t max_len = rtransport->transport.opts.in_capsule_data_size;
# # # # ]
1903 : :
1904 [ - + - + : 1937810 : SPDK_DEBUGLOG(nvmf, "In-capsule data: offset 0x%" PRIx64 ", length 0x%x\n",
# # # # #
# # # #
# ]
1905 : : offset, sgl->unkeyed.length);
1906 : :
1907 [ - + ]: 1937810 : if (spdk_unlikely(offset > max_len)) {
1908 : 0 : SPDK_ERRLOG("In-capsule offset 0x%" PRIx64 " exceeds capsule length 0x%x\n",
1909 : : offset, max_len);
1910 [ # # # # : 0 : rsp->status.sc = SPDK_NVME_SC_INVALID_SGL_OFFSET;
# # ]
1911 : 0 : return -1;
1912 : : }
1913 : 1937810 : max_len -= (uint32_t)offset;
1914 : :
1915 [ + + # # : 1937810 : if (spdk_unlikely(sgl->unkeyed.length > max_len)) {
# # # # #
# ]
1916 [ # # # # : 6 : SPDK_ERRLOG("In-capsule data length 0x%x exceeds capsule length 0x%x\n",
# # # # ]
1917 : : sgl->unkeyed.length, max_len);
1918 [ # # # # : 6 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
# # ]
1919 : 6 : return -1;
1920 : : }
1921 : :
1922 [ # # # # ]: 1937804 : rdma_req->num_outstanding_data_wr = 0;
1923 [ # # # # : 1937804 : req->data_from_pool = false;
# # ]
1924 [ # # # # : 1937804 : req->length = sgl->unkeyed.length;
# # # # #
# # # ]
1925 : :
1926 [ # # # # : 1937804 : req->iov[0].iov_base = rdma_req->recv->buf + offset;
# # # # #
# # # # #
# # # # #
# ]
1927 [ # # # # : 1937804 : req->iov[0].iov_len = req->length;
# # # # #
# # # #
# ]
1928 [ # # # # ]: 1937804 : req->iovcnt = 1;
1929 : :
1930 : 1937804 : return 0;
1931 [ + - # # : 1147949 : } else if (sgl->generic.type == SPDK_NVME_SGL_TYPE_LAST_SEGMENT &&
# # # # #
# ]
1932 [ + - # # : 1147949 : sgl->unkeyed.subtype == SPDK_NVME_SGL_SUBTYPE_OFFSET) {
# # ]
1933 : :
1934 : 1147949 : rc = nvmf_rdma_request_fill_iovs_multi_sgl(rtransport, device, rdma_req);
1935 [ + + ]: 1147949 : if (spdk_unlikely(rc == -ENOMEM)) {
1936 [ - + - + : 978414 : SPDK_DEBUGLOG(rdma, "No available large data buffers. Queueing request %p\n", rdma_req);
# # ]
1937 : 978414 : return 0;
1938 [ - + ]: 169535 : } else if (spdk_unlikely(rc == -EINVAL)) {
1939 : 0 : SPDK_ERRLOG("Multi SGL element request length exceeds the max I/O size\n");
1940 [ # # # # : 0 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
# # ]
1941 : 0 : return -1;
1942 : : }
1943 : :
1944 [ - + - + : 169535 : SPDK_DEBUGLOG(rdma, "Request %p took %d buffer/s from central pool\n", rdma_req,
# # # # #
# ]
1945 : : req->iovcnt);
1946 : :
1947 : 169535 : return 0;
1948 : : }
1949 : :
1950 [ # # # # : 0 : SPDK_ERRLOG("Invalid NVMf I/O Command SGL: Type 0x%x, Subtype 0x%x\n",
# # # # #
# # # ]
1951 : : sgl->generic.type, sgl->generic.subtype);
1952 [ # # # # : 0 : rsp->status.sc = SPDK_NVME_SC_SGL_DESCRIPTOR_TYPE_INVALID;
# # ]
1953 : 0 : return -1;
1954 : 0 : }
1955 : :
1956 : : static void
1957 : 7798057 : _nvmf_rdma_request_free(struct spdk_nvmf_rdma_request *rdma_req,
1958 : : struct spdk_nvmf_rdma_transport *rtransport)
1959 : : {
1960 : : struct spdk_nvmf_rdma_qpair *rqpair;
1961 : : struct spdk_nvmf_rdma_poll_group *rgroup;
1962 : :
1963 [ # # # # : 7798057 : rqpair = SPDK_CONTAINEROF(rdma_req->req.qpair, struct spdk_nvmf_rdma_qpair, qpair);
# # ]
1964 [ + + # # : 7798057 : if (rdma_req->req.data_from_pool) {
# # # # #
# ]
1965 [ # # # # : 4710082 : rgroup = rqpair->poller->group;
# # # # ]
1966 : :
1967 [ # # # # : 4710082 : spdk_nvmf_request_free_buffers(&rdma_req->req, &rgroup->group, &rtransport->transport);
# # ]
1968 : 0 : }
1969 [ - + # # : 7798057 : if (rdma_req->req.stripped_data) {
# # # # ]
1970 [ # # ]: 0 : nvmf_request_free_stripped_buffers(&rdma_req->req,
1971 [ # # # # : 0 : &rqpair->poller->group->group,
# # # # #
# ]
1972 [ # # ]: 0 : &rtransport->transport);
1973 : 0 : }
1974 : 7798057 : nvmf_rdma_request_free_data(rdma_req, rtransport);
1975 [ # # # # : 7798057 : rdma_req->req.length = 0;
# # ]
1976 [ # # # # : 7798057 : rdma_req->req.iovcnt = 0;
# # ]
1977 [ # # # # ]: 7798057 : rdma_req->offset = 0;
1978 [ # # # # : 7798057 : rdma_req->req.dif_enabled = false;
# # # # ]
1979 [ # # # # ]: 7798057 : rdma_req->fused_failed = false;
1980 [ # # # # ]: 7798057 : rdma_req->transfer_wr = NULL;
1981 [ - + # # : 7798057 : if (rdma_req->fused_pair) {
# # ]
1982 : : /* This req was part of a valid fused pair, but failed before it got to
1983 : : * READ_TO_EXECUTE state. This means we need to fail the other request
1984 : : * in the pair, because it is no longer part of a valid pair. If the pair
1985 : : * already reached READY_TO_EXECUTE state, we need to kick it.
1986 : : */
1987 [ # # # # : 0 : rdma_req->fused_pair->fused_failed = true;
# # # # ]
1988 [ # # # # : 0 : if (rdma_req->fused_pair->state == RDMA_REQUEST_STATE_READY_TO_EXECUTE) {
# # # # #
# ]
1989 [ # # # # ]: 0 : nvmf_rdma_request_process(rtransport, rdma_req->fused_pair);
1990 : 0 : }
1991 [ # # # # ]: 0 : rdma_req->fused_pair = NULL;
1992 : 0 : }
1993 [ - + # # : 7798057 : memset(&rdma_req->req.dif, 0, sizeof(rdma_req->req.dif));
# # ]
1994 [ # # ]: 7798057 : rqpair->qd--;
1995 : :
1996 [ + + # # : 7798057 : STAILQ_INSERT_HEAD(&rqpair->resources->free_queue, rdma_req, state_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
1997 [ # # # # ]: 7798057 : rqpair->qpair.queue_depth--;
1998 [ # # # # ]: 7798057 : rdma_req->state = RDMA_REQUEST_STATE_FREE;
1999 : 7798057 : }
2000 : :
2001 : : static void
2002 : 7797644 : nvmf_rdma_check_fused_ordering(struct spdk_nvmf_rdma_transport *rtransport,
2003 : : struct spdk_nvmf_rdma_qpair *rqpair,
2004 : : struct spdk_nvmf_rdma_request *rdma_req)
2005 : : {
2006 : : enum spdk_nvme_cmd_fuse last, next;
2007 : :
2008 [ + + # # : 7797644 : last = rqpair->fused_first ? rqpair->fused_first->req.cmd->nvme_cmd.fuse : SPDK_NVME_CMD_FUSE_NONE;
# # # # #
# # # # #
# # # # #
# ]
2009 [ # # # # : 7797644 : next = rdma_req->req.cmd->nvme_cmd.fuse;
# # # # #
# ]
2010 : :
2011 [ - + # # ]: 7797644 : assert(last != SPDK_NVME_CMD_FUSE_SECOND);
2012 : :
2013 [ + + + + ]: 7797644 : if (spdk_likely(last == SPDK_NVME_CMD_FUSE_NONE && next == SPDK_NVME_CMD_FUSE_NONE)) {
2014 : 7795586 : return;
2015 : : }
2016 : :
2017 [ + + ]: 2058 : if (last == SPDK_NVME_CMD_FUSE_FIRST) {
2018 [ + - ]: 1029 : if (next == SPDK_NVME_CMD_FUSE_SECOND) {
2019 : : /* This is a valid pair of fused commands. Point them at each other
2020 : : * so they can be submitted consecutively once ready to be executed.
2021 : : */
2022 [ # # # # : 1029 : rqpair->fused_first->fused_pair = rdma_req;
# # # # ]
2023 [ # # # # : 1029 : rdma_req->fused_pair = rqpair->fused_first;
# # # # ]
2024 [ # # # # ]: 1029 : rqpair->fused_first = NULL;
2025 : 1029 : return;
2026 : : } else {
2027 : : /* Mark the last req as failed since it wasn't followed by a SECOND. */
2028 [ # # # # : 0 : rqpair->fused_first->fused_failed = true;
# # # # ]
2029 : :
2030 : : /* If the last req is in READY_TO_EXECUTE state, then call
2031 : : * nvmf_rdma_request_process(), otherwise nothing else will kick it.
2032 : : */
2033 [ # # # # : 0 : if (rqpair->fused_first->state == RDMA_REQUEST_STATE_READY_TO_EXECUTE) {
# # # # #
# ]
2034 [ # # # # ]: 0 : nvmf_rdma_request_process(rtransport, rqpair->fused_first);
2035 : 0 : }
2036 : :
2037 [ # # # # ]: 0 : rqpair->fused_first = NULL;
2038 : : }
2039 : 0 : }
2040 : :
2041 [ + - ]: 1029 : if (next == SPDK_NVME_CMD_FUSE_FIRST) {
2042 : : /* Set rqpair->fused_first here so that we know to check that the next request
2043 : : * is a SECOND (and to fail this one if it isn't).
2044 : : */
2045 [ # # # # ]: 1029 : rqpair->fused_first = rdma_req;
2046 [ # # ]: 0 : } else if (next == SPDK_NVME_CMD_FUSE_SECOND) {
2047 : : /* Mark this req failed since it ia SECOND and the last one was not a FIRST. */
2048 [ # # # # ]: 0 : rdma_req->fused_failed = true;
2049 : 0 : }
2050 : 0 : }
2051 : :
2052 : : bool
2053 : 31435455 : nvmf_rdma_request_process(struct spdk_nvmf_rdma_transport *rtransport,
2054 : : struct spdk_nvmf_rdma_request *rdma_req)
2055 : : {
2056 : : struct spdk_nvmf_rdma_qpair *rqpair;
2057 : : struct spdk_nvmf_rdma_device *device;
2058 : : struct spdk_nvmf_rdma_poll_group *rgroup;
2059 [ # # # # : 31435455 : struct spdk_nvme_cpl *rsp = &rdma_req->req.rsp->nvme_cpl;
# # # # ]
2060 : : int rc;
2061 : : struct spdk_nvmf_rdma_recv *rdma_recv;
2062 : : enum spdk_nvmf_rdma_request_state prev_state;
2063 : 31435455 : bool progress = false;
2064 : 69 : int data_posted;
2065 : : uint32_t num_blocks, num_rdma_reads_available, qdepth;
2066 : :
2067 [ # # # # : 31435455 : rqpair = SPDK_CONTAINEROF(rdma_req->req.qpair, struct spdk_nvmf_rdma_qpair, qpair);
# # ]
2068 [ # # # # ]: 31435455 : device = rqpair->device;
2069 [ # # # # : 31435455 : rgroup = rqpair->poller->group;
# # # # ]
2070 : :
2071 [ - + # # : 31435455 : assert(rdma_req->state != RDMA_REQUEST_STATE_FREE);
# # # # ]
2072 : :
2073 : : /* If the queue pair is in an error state, force the request to the completed state
2074 : : * to release resources. */
2075 [ + + + + : 31435455 : if (spdk_unlikely(rqpair->ibv_in_error_state || !spdk_nvmf_qpair_is_active(&rqpair->qpair))) {
+ + # # #
# # # ]
2076 [ + + - - : 2128 : switch (rdma_req->state) {
- + # # #
# ]
2077 : 506 : case RDMA_REQUEST_STATE_NEED_BUFFER:
2078 [ + + - + : 63836 : STAILQ_REMOVE(&rgroup->group.pending_buf_queue, &rdma_req->req, spdk_nvmf_request, buf_link);
+ + + + #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
2079 : 506 : break;
2080 : 659 : case RDMA_REQUEST_STATE_DATA_TRANSFER_TO_CONTROLLER_PENDING:
2081 [ + + + + : 659 : STAILQ_REMOVE(&rqpair->pending_rdma_read_queue, rdma_req, spdk_nvmf_rdma_request, state_link);
- + + + #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
2082 : 659 : break;
2083 : 0 : case RDMA_REQUEST_STATE_TRANSFERRING_HOST_TO_CONTROLLER:
2084 [ # # # # : 0 : if (rdma_req->num_remaining_data_wr) {
# # ]
2085 : : /* Partially sent request is still in the pending_rdma_read_queue,
2086 : : * remove it before completing */
2087 [ # # # # ]: 0 : rdma_req->num_remaining_data_wr = 0;
2088 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->pending_rdma_read_queue, rdma_req, spdk_nvmf_rdma_request, state_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
2089 : 0 : }
2090 : 0 : break;
2091 : 0 : case RDMA_REQUEST_STATE_DATA_TRANSFER_TO_HOST_PENDING:
2092 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->pending_rdma_write_queue, rdma_req, spdk_nvmf_rdma_request, state_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
2093 : 0 : break;
2094 : 0 : case RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING:
2095 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->pending_rdma_send_queue, rdma_req, spdk_nvmf_rdma_request, state_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
2096 : 0 : break;
2097 : 963 : default:
2098 : 963 : break;
2099 : : }
2100 [ # # # # ]: 2128 : rdma_req->state = RDMA_REQUEST_STATE_COMPLETED;
2101 : 0 : }
2102 : :
2103 : : /* The loop here is to allow for several back-to-back state changes. */
2104 : 0 : do {
2105 [ # # # # ]: 85647391 : prev_state = rdma_req->state;
2106 : :
2107 [ - + - + : 85647391 : SPDK_DEBUGLOG(rdma, "Request %p entering state %d\n", rdma_req, prev_state);
# # ]
2108 : :
2109 [ + + + + : 85647391 : switch (rdma_req->state) {
+ + + + +
+ + + + +
- # # # #
# ]
2110 : 7796709 : case RDMA_REQUEST_STATE_FREE:
2111 : : /* Some external code must kick a request into RDMA_REQUEST_STATE_NEW
2112 : : * to escape this state. */
2113 : 7796709 : break;
2114 : 7797644 : case RDMA_REQUEST_STATE_NEW:
2115 [ + + + - : 7797644 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_NEW, 0, 0,
# # # # #
# # # # #
# # # # #
# # # ]
2116 : : (uintptr_t)rdma_req, (uintptr_t)rqpair, rqpair->qpair.queue_depth);
2117 [ # # # # ]: 7797644 : rdma_recv = rdma_req->recv;
2118 : :
2119 : : /* The first element of the SGL is the NVMe command */
2120 [ # # # # : 7797644 : rdma_req->req.cmd = (union nvmf_h2c_msg *)rdma_recv->sgl[0].addr;
# # # # #
# # # # #
# # ]
2121 [ - + # # : 7797644 : memset(rdma_req->req.rsp, 0, sizeof(*rdma_req->req.rsp));
# # # # ]
2122 [ # # # # : 7797644 : rdma_req->transfer_wr = &rdma_req->data.wr;
# # # # ]
2123 : :
2124 [ + + + + : 7797644 : if (spdk_unlikely(rqpair->ibv_in_error_state || !spdk_nvmf_qpair_is_active(&rqpair->qpair))) {
- + # # #
# # # ]
2125 [ # # # # ]: 0 : rdma_req->state = RDMA_REQUEST_STATE_COMPLETED;
2126 : 0 : break;
2127 : : }
2128 : :
2129 [ - + # # : 7797644 : if (spdk_unlikely(spdk_nvmf_request_get_dif_ctx(&rdma_req->req, &rdma_req->req.dif.dif_ctx))) {
# # # # #
# ]
2130 [ # # # # : 0 : rdma_req->req.dif_enabled = true;
# # # # ]
2131 : 0 : }
2132 : :
2133 : 7797644 : nvmf_rdma_check_fused_ordering(rtransport, rqpair, rdma_req);
2134 : :
2135 : : #ifdef SPDK_CONFIG_RDMA_SEND_WITH_INVAL
2136 [ # # # # : 7797644 : rdma_req->rsp.wr.opcode = IBV_WR_SEND;
# # # # ]
2137 [ # # # # : 7797644 : rdma_req->rsp.wr.imm_data = 0;
# # # # #
# ]
2138 : : #endif
2139 : :
2140 : : /* The next state transition depends on the data transfer needs of this request. */
2141 [ # # # # : 7797644 : rdma_req->req.xfer = spdk_nvmf_req_get_xfer(&rdma_req->req);
# # # # ]
2142 : :
2143 [ + + # # : 7797644 : if (spdk_unlikely(rdma_req->req.xfer == SPDK_NVME_DATA_BIDIRECTIONAL)) {
# # # # ]
2144 [ # # # # : 3 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
# # ]
2145 [ # # # # : 3 : rsp->status.sc = SPDK_NVME_SC_INVALID_OPCODE;
# # ]
2146 [ # # # # : 3 : STAILQ_INSERT_TAIL(&rqpair->pending_rdma_send_queue, rdma_req, state_link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
2147 [ # # # # ]: 3 : rdma_req->state = RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING;
2148 [ - + - + : 3 : SPDK_DEBUGLOG(rdma, "Request %p: invalid xfer type (BIDIRECTIONAL)\n", rdma_req);
# # ]
2149 : 3 : break;
2150 : : }
2151 : :
2152 : : /* If no data to transfer, ready to execute. */
2153 [ + + # # : 7797641 : if (rdma_req->req.xfer == SPDK_NVME_DATA_NONE) {
# # # # ]
2154 [ # # # # ]: 1149252 : rdma_req->state = RDMA_REQUEST_STATE_READY_TO_EXECUTE;
2155 : 1149252 : break;
2156 : : }
2157 : :
2158 [ # # # # ]: 6648389 : rdma_req->state = RDMA_REQUEST_STATE_NEED_BUFFER;
2159 [ # # # # : 6648389 : STAILQ_INSERT_TAIL(&rgroup->group.pending_buf_queue, &rdma_req->req, buf_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # #
# ]
2160 : 6648389 : break;
2161 : 10771751 : case RDMA_REQUEST_STATE_NEED_BUFFER:
2162 [ + + + - : 10771751 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_NEED_BUFFER, 0, 0,
# # # # #
# # # # #
# # ]
2163 : : (uintptr_t)rdma_req, (uintptr_t)rqpair);
2164 : :
2165 [ - + # # : 10771751 : assert(rdma_req->req.xfer != SPDK_NVME_DATA_NONE);
# # # # #
# ]
2166 : :
2167 [ + + # # : 10771751 : if (&rdma_req->req != STAILQ_FIRST(&rgroup->group.pending_buf_queue)) {
# # # # #
# # # ]
2168 : : /* This request needs to wait in line to obtain a buffer */
2169 : 1014651 : break;
2170 : : }
2171 : :
2172 : : /* Try to get a data buffer */
2173 : 9757100 : rc = nvmf_rdma_request_parse_sgl(rtransport, device, rdma_req);
2174 [ - + ]: 9757100 : if (spdk_unlikely(rc < 0)) {
2175 [ # # # # : 0 : STAILQ_REMOVE_HEAD(&rgroup->group.pending_buf_queue, buf_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
2176 [ # # # # : 0 : STAILQ_INSERT_TAIL(&rqpair->pending_rdma_send_queue, rdma_req, state_link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
2177 [ # # # # ]: 0 : rdma_req->state = RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING;
2178 : 0 : break;
2179 : : }
2180 : :
2181 [ + + # # : 9757100 : if (rdma_req->req.iovcnt == 0) {
# # # # ]
2182 : : /* No buffers available. */
2183 [ # # # # ]: 3109217 : rgroup->stat.pending_data_buffer++;
2184 : 3109217 : break;
2185 : : }
2186 : :
2187 [ + + # # : 6647883 : STAILQ_REMOVE_HEAD(&rgroup->group.pending_buf_queue, buf_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
2188 : :
2189 : : /* If data is transferring from host to controller and the data didn't
2190 : : * arrive using in capsule data, we need to do a transfer from the host.
2191 : : */
2192 [ + + + + : 6647883 : if (rdma_req->req.xfer == SPDK_NVME_DATA_HOST_TO_CONTROLLER &&
# # # # #
# ]
2193 [ # # # # : 0 : rdma_req->req.data_from_pool) {
# # # # ]
2194 [ # # # # : 729041 : STAILQ_INSERT_TAIL(&rqpair->pending_rdma_read_queue, rdma_req, state_link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
2195 [ # # # # ]: 729041 : rdma_req->state = RDMA_REQUEST_STATE_DATA_TRANSFER_TO_CONTROLLER_PENDING;
2196 : 729041 : break;
2197 : : }
2198 : :
2199 [ # # # # ]: 5918842 : rdma_req->state = RDMA_REQUEST_STATE_READY_TO_EXECUTE;
2200 : 5918842 : break;
2201 : 3909508 : case RDMA_REQUEST_STATE_DATA_TRANSFER_TO_CONTROLLER_PENDING:
2202 [ + + + - : 3909508 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_DATA_TRANSFER_TO_CONTROLLER_PENDING, 0, 0,
# # # # #
# # # # #
# # ]
2203 : : (uintptr_t)rdma_req, (uintptr_t)rqpair);
2204 : :
2205 [ + + # # : 3909508 : if (rdma_req != STAILQ_FIRST(&rqpair->pending_rdma_read_queue)) {
# # # # ]
2206 : : /* This request needs to wait in line to perform RDMA */
2207 : 1690853 : break;
2208 : : }
2209 [ - + # # : 2218655 : assert(rqpair->max_send_depth >= rqpair->current_send_depth);
# # # # #
# # # ]
2210 [ # # # # : 2218655 : qdepth = rqpair->max_send_depth - rqpair->current_send_depth;
# # # # ]
2211 [ - + # # : 2218655 : assert(rqpair->max_read_depth >= rqpair->current_read_depth);
# # # # #
# # # ]
2212 [ # # # # : 2218655 : num_rdma_reads_available = rqpair->max_read_depth - rqpair->current_read_depth;
# # # # ]
2213 [ + + # # : 2218655 : if (rdma_req->num_outstanding_data_wr > qdepth ||
# # # # ]
2214 [ + + # # ]: 2218275 : rdma_req->num_outstanding_data_wr > num_rdma_reads_available) {
2215 [ + + + + ]: 1490273 : if (num_rdma_reads_available && qdepth) {
2216 : : /* Send as much as we can */
2217 [ # # # # ]: 61340 : request_prepare_transfer_in_part(&rdma_req->req, spdk_min(num_rdma_reads_available, qdepth));
2218 : 0 : } else {
2219 : : /* We can only have so many WRs outstanding. we have to wait until some finish. */
2220 [ # # # # : 1428933 : rqpair->poller->stat.pending_rdma_read++;
# # # # ]
2221 : 1428933 : break;
2222 : : }
2223 : 0 : }
2224 : :
2225 : : /* We have already verified that this request is the head of the queue. */
2226 [ + + # # : 789722 : if (rdma_req->num_remaining_data_wr == 0) {
# # ]
2227 [ + + # # : 728382 : STAILQ_REMOVE_HEAD(&rqpair->pending_rdma_read_queue, state_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
2228 : 0 : }
2229 : :
2230 [ # # ]: 789722 : request_transfer_in(&rdma_req->req);
2231 [ # # # # ]: 789722 : rdma_req->state = RDMA_REQUEST_STATE_TRANSFERRING_HOST_TO_CONTROLLER;
2232 : :
2233 : 789722 : break;
2234 : 789722 : case RDMA_REQUEST_STATE_TRANSFERRING_HOST_TO_CONTROLLER:
2235 [ + + + - : 789722 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_TRANSFERRING_HOST_TO_CONTROLLER, 0, 0,
# # # # #
# # # # #
# # ]
2236 : : (uintptr_t)rdma_req, (uintptr_t)rqpair);
2237 : : /* Some external code must kick a request into RDMA_REQUEST_STATE_READY_TO_EXECUTE
2238 : : * to escape this state. */
2239 : 789722 : break;
2240 : 7796457 : case RDMA_REQUEST_STATE_READY_TO_EXECUTE:
2241 [ + + + - : 7796457 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_READY_TO_EXECUTE, 0, 0,
# # # # #
# # # # #
# # ]
2242 : : (uintptr_t)rdma_req, (uintptr_t)rqpair);
2243 : :
2244 [ - + # # : 7796457 : if (spdk_unlikely(rdma_req->req.dif_enabled)) {
# # # # #
# ]
2245 [ # # # # : 0 : if (rdma_req->req.xfer == SPDK_NVME_DATA_HOST_TO_CONTROLLER) {
# # # # ]
2246 : : /* generate DIF for write operation */
2247 [ # # # # : 0 : num_blocks = SPDK_CEIL_DIV(rdma_req->req.dif.elba_length, rdma_req->req.dif.dif_ctx.block_size);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
2248 [ # # # # ]: 0 : assert(num_blocks > 0);
2249 : :
2250 [ # # # # : 0 : rc = spdk_dif_generate(rdma_req->req.iov, rdma_req->req.iovcnt,
# # # # #
# ]
2251 [ # # # # : 0 : num_blocks, &rdma_req->req.dif.dif_ctx);
# # ]
2252 [ # # ]: 0 : if (rc != 0) {
2253 : 0 : SPDK_ERRLOG("DIF generation failed\n");
2254 [ # # # # ]: 0 : rdma_req->state = RDMA_REQUEST_STATE_COMPLETED;
2255 [ # # ]: 0 : spdk_nvmf_qpair_disconnect(&rqpair->qpair);
2256 : 0 : break;
2257 : : }
2258 : 0 : }
2259 : :
2260 [ # # # # : 0 : assert(rdma_req->req.dif.elba_length >= rdma_req->req.length);
# # # # #
# # # # #
# # # # ]
2261 : : /* set extended length before IO operation */
2262 [ # # # # : 0 : rdma_req->req.length = rdma_req->req.dif.elba_length;
# # # # #
# # # #
# ]
2263 : 0 : }
2264 : :
2265 [ + + # # : 7796457 : if (rdma_req->req.cmd->nvme_cmd.fuse != SPDK_NVME_CMD_FUSE_NONE) {
# # # # #
# # # ]
2266 [ - + - + : 2058 : if (rdma_req->fused_failed) {
# # # # ]
2267 : : /* This request failed FUSED semantics. Fail it immediately, without
2268 : : * even sending it to the target layer.
2269 : : */
2270 [ # # # # : 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
# # ]
2271 [ # # # # : 0 : rsp->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
# # ]
2272 [ # # # # : 0 : STAILQ_INSERT_TAIL(&rqpair->pending_rdma_send_queue, rdma_req, state_link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
2273 [ # # # # ]: 0 : rdma_req->state = RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING;
2274 : 0 : break;
2275 : : }
2276 : :
2277 [ + + # # : 2058 : if (rdma_req->fused_pair == NULL ||
# # # # ]
2278 [ + - # # : 1029 : rdma_req->fused_pair->state != RDMA_REQUEST_STATE_READY_TO_EXECUTE) {
# # # # ]
2279 : : /* This request is ready to execute, but either we don't know yet if it's
2280 : : * valid - i.e. this is a FIRST but we haven't received the next
2281 : : * request yet or the other request of this fused pair isn't ready to
2282 : : * execute. So break here and this request will get processed later either
2283 : : * when the other request is ready or we find that this request isn't valid.
2284 : : */
2285 : 0 : break;
2286 : : }
2287 : 0 : }
2288 : :
2289 : : /* If we get to this point, and this request is a fused command, we know that
2290 : : * it is part of valid sequence (FIRST followed by a SECOND) and that both
2291 : : * requests are READY_TO_EXECUTE. So call spdk_nvmf_request_exec() both on this
2292 : : * request, and the other request of the fused pair, in the correct order.
2293 : : * Also clear the ->fused_pair pointers on both requests, since after this point
2294 : : * we no longer need to maintain the relationship between these two requests.
2295 : : */
2296 [ + + # # : 7795428 : if (rdma_req->req.cmd->nvme_cmd.fuse == SPDK_NVME_CMD_FUSE_SECOND) {
# # # # #
# # # ]
2297 [ - + # # : 1029 : assert(rdma_req->fused_pair != NULL);
# # # # ]
2298 [ - + # # : 1029 : assert(rdma_req->fused_pair->fused_pair != NULL);
# # # # #
# # # ]
2299 [ # # # # : 1029 : rdma_req->fused_pair->state = RDMA_REQUEST_STATE_EXECUTING;
# # # # ]
2300 [ # # # # : 1029 : spdk_nvmf_request_exec(&rdma_req->fused_pair->req);
# # ]
2301 [ # # # # : 1029 : rdma_req->fused_pair->fused_pair = NULL;
# # # # ]
2302 [ # # # # ]: 1029 : rdma_req->fused_pair = NULL;
2303 : 0 : }
2304 [ # # # # ]: 7795428 : rdma_req->state = RDMA_REQUEST_STATE_EXECUTING;
2305 [ # # ]: 7795428 : spdk_nvmf_request_exec(&rdma_req->req);
2306 [ - + # # : 7795428 : if (rdma_req->req.cmd->nvme_cmd.fuse == SPDK_NVME_CMD_FUSE_FIRST) {
# # # # #
# # # ]
2307 [ # # # # : 0 : assert(rdma_req->fused_pair != NULL);
# # # # ]
2308 [ # # # # : 0 : assert(rdma_req->fused_pair->fused_pair != NULL);
# # # # #
# # # ]
2309 [ # # # # : 0 : rdma_req->fused_pair->state = RDMA_REQUEST_STATE_EXECUTING;
# # # # ]
2310 [ # # # # : 0 : spdk_nvmf_request_exec(&rdma_req->fused_pair->req);
# # ]
2311 [ # # # # : 0 : rdma_req->fused_pair->fused_pair = NULL;
# # # # ]
2312 [ # # # # ]: 0 : rdma_req->fused_pair = NULL;
2313 : 0 : }
2314 : 7795428 : break;
2315 : 6522173 : case RDMA_REQUEST_STATE_EXECUTING:
2316 [ + + + - : 6522173 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_EXECUTING, 0, 0,
# # # # #
# # # # #
# # ]
2317 : : (uintptr_t)rdma_req, (uintptr_t)rqpair);
2318 : : /* Some external code must kick a request into RDMA_REQUEST_STATE_EXECUTED
2319 : : * to escape this state. */
2320 : 6522173 : break;
2321 : 7794848 : case RDMA_REQUEST_STATE_EXECUTED:
2322 [ + + + - : 7794848 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_EXECUTED, 0, 0,
# # # # #
# # # # #
# # ]
2323 : : (uintptr_t)rdma_req, (uintptr_t)rqpair);
2324 [ + + # # : 7794848 : if (rsp->status.sc == SPDK_NVME_SC_SUCCESS &&
# # # # #
# ]
2325 [ + + # # : 6510793 : rdma_req->req.xfer == SPDK_NVME_DATA_CONTROLLER_TO_HOST) {
# # ]
2326 [ # # # # : 3817278 : STAILQ_INSERT_TAIL(&rqpair->pending_rdma_write_queue, rdma_req, state_link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
2327 [ # # # # ]: 3817278 : rdma_req->state = RDMA_REQUEST_STATE_DATA_TRANSFER_TO_HOST_PENDING;
2328 : 0 : } else {
2329 [ # # # # : 3977570 : STAILQ_INSERT_TAIL(&rqpair->pending_rdma_send_queue, rdma_req, state_link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
2330 [ # # # # ]: 3977570 : rdma_req->state = RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING;
2331 : : }
2332 [ - + # # : 7794848 : if (spdk_unlikely(rdma_req->req.dif_enabled)) {
# # # # #
# ]
2333 : : /* restore the original length */
2334 [ # # # # : 0 : rdma_req->req.length = rdma_req->req.dif.orig_length;
# # # # #
# # # #
# ]
2335 : :
2336 [ # # # # : 0 : if (rdma_req->req.xfer == SPDK_NVME_DATA_CONTROLLER_TO_HOST) {
# # # # ]
2337 : 0 : struct spdk_dif_error error_blk;
2338 : :
2339 [ # # # # : 0 : num_blocks = SPDK_CEIL_DIV(rdma_req->req.dif.elba_length, rdma_req->req.dif.dif_ctx.block_size);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
2340 [ # # # # : 0 : if (!rdma_req->req.stripped_data) {
# # # # ]
2341 [ # # # # : 0 : rc = spdk_dif_verify(rdma_req->req.iov, rdma_req->req.iovcnt, num_blocks,
# # # # #
# ]
2342 [ # # # # : 0 : &rdma_req->req.dif.dif_ctx, &error_blk);
# # ]
2343 : 0 : } else {
2344 [ # # # # : 0 : rc = spdk_dif_verify_copy(rdma_req->req.stripped_data->iov,
# # # # ]
2345 [ # # # # : 0 : rdma_req->req.stripped_data->iovcnt,
# # # # #
# ]
2346 [ # # # # : 0 : rdma_req->req.iov, rdma_req->req.iovcnt, num_blocks,
# # # # #
# ]
2347 [ # # # # : 0 : &rdma_req->req.dif.dif_ctx, &error_blk);
# # ]
2348 : : }
2349 [ # # ]: 0 : if (rc) {
2350 [ # # # # : 0 : struct spdk_nvme_cpl *rsp = &rdma_req->req.rsp->nvme_cpl;
# # # # ]
2351 : :
2352 [ # # ]: 0 : SPDK_ERRLOG("DIF error detected. type=%d, offset=%" PRIu32 "\n", error_blk.err_type,
2353 : : error_blk.err_offset);
2354 [ # # # # : 0 : rsp->status.sct = SPDK_NVME_SCT_MEDIA_ERROR;
# # ]
2355 [ # # # # : 0 : rsp->status.sc = nvmf_rdma_dif_error_to_compl_status(error_blk.err_type);
# # ]
2356 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->pending_rdma_write_queue, rdma_req, spdk_nvmf_rdma_request, state_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
2357 [ # # # # : 0 : STAILQ_INSERT_TAIL(&rqpair->pending_rdma_send_queue, rdma_req, state_link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
2358 [ # # # # ]: 0 : rdma_req->state = RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING;
2359 : 0 : }
2360 : 0 : }
2361 : 0 : }
2362 : 7794848 : break;
2363 : 3831253 : case RDMA_REQUEST_STATE_DATA_TRANSFER_TO_HOST_PENDING:
2364 [ + + + - : 3831253 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_DATA_TRANSFER_TO_HOST_PENDING, 0, 0,
# # # # #
# # # # #
# # ]
2365 : : (uintptr_t)rdma_req, (uintptr_t)rqpair);
2366 : :
2367 [ + + # # : 3831253 : if (rdma_req != STAILQ_FIRST(&rqpair->pending_rdma_write_queue)) {
# # # # ]
2368 : : /* This request needs to wait in line to perform RDMA */
2369 : 4221 : break;
2370 : : }
2371 [ # # # # : 3827032 : if ((rqpair->current_send_depth + rdma_req->num_outstanding_data_wr + 1) >
# # # # #
# ]
2372 [ + + # # ]: 3827032 : rqpair->max_send_depth) {
2373 : : /* We can only have so many WRs outstanding. we have to wait until some finish.
2374 : : * +1 since each request has an additional wr in the resp. */
2375 [ # # # # : 9754 : rqpair->poller->stat.pending_rdma_write++;
# # # # ]
2376 : 9754 : break;
2377 : : }
2378 : :
2379 : : /* We have already verified that this request is the head of the queue. */
2380 [ + + # # : 3817278 : STAILQ_REMOVE_HEAD(&rqpair->pending_rdma_write_queue, state_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
2381 : :
2382 : : /* The data transfer will be kicked off from
2383 : : * RDMA_REQUEST_STATE_READY_TO_COMPLETE state.
2384 : : * We verified that data + response fit into send queue, so we can go to the next state directly
2385 : : */
2386 [ # # # # ]: 3817278 : rdma_req->state = RDMA_REQUEST_STATE_READY_TO_COMPLETE;
2387 : 3817278 : break;
2388 : 3977660 : case RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING:
2389 [ + + + - : 3977660 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING, 0, 0,
# # # # #
# # # # #
# # ]
2390 : : (uintptr_t)rdma_req, (uintptr_t)rqpair);
2391 : :
2392 [ + + # # : 3977660 : if (rdma_req != STAILQ_FIRST(&rqpair->pending_rdma_send_queue)) {
# # # # ]
2393 : : /* This request needs to wait in line to send the completion */
2394 : 16 : break;
2395 : : }
2396 : :
2397 [ - + # # : 3977644 : assert(rqpair->current_send_depth <= rqpair->max_send_depth);
# # # # #
# # # ]
2398 [ + + # # : 3977644 : if (rqpair->current_send_depth == rqpair->max_send_depth) {
# # # # #
# ]
2399 : : /* We can only have so many WRs outstanding. we have to wait until some finish */
2400 [ # # # # : 71 : rqpair->poller->stat.pending_rdma_send++;
# # # # ]
2401 : 71 : break;
2402 : : }
2403 : :
2404 : : /* We have already verified that this request is the head of the queue. */
2405 [ + + # # : 3977573 : STAILQ_REMOVE_HEAD(&rqpair->pending_rdma_send_queue, state_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
2406 : :
2407 : : /* The response sending will be kicked off from
2408 : : * RDMA_REQUEST_STATE_READY_TO_COMPLETE state.
2409 : : */
2410 [ # # # # ]: 3977573 : rdma_req->state = RDMA_REQUEST_STATE_READY_TO_COMPLETE;
2411 : 3977573 : break;
2412 : 7794851 : case RDMA_REQUEST_STATE_READY_TO_COMPLETE:
2413 [ + + + - : 7794851 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_READY_TO_COMPLETE, 0, 0,
# # # # #
# # # # #
# # ]
2414 : : (uintptr_t)rdma_req, (uintptr_t)rqpair);
2415 [ # # ]: 7794851 : rc = request_transfer_out(&rdma_req->req, &data_posted);
2416 [ - + # # ]: 7794851 : assert(rc == 0); /* No good way to handle this currently */
2417 [ - + ]: 7794851 : if (spdk_unlikely(rc)) {
2418 [ # # # # ]: 0 : rdma_req->state = RDMA_REQUEST_STATE_COMPLETED;
2419 : 0 : } else {
2420 [ + + # # ]: 7794851 : rdma_req->state = data_posted ? RDMA_REQUEST_STATE_TRANSFERRING_CONTROLLER_TO_HOST :
2421 : : RDMA_REQUEST_STATE_COMPLETING;
2422 : : }
2423 : 7794851 : break;
2424 : 3821699 : case RDMA_REQUEST_STATE_TRANSFERRING_CONTROLLER_TO_HOST:
2425 [ + + + - : 3821699 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_TRANSFERRING_CONTROLLER_TO_HOST, 0, 0,
# # # # #
# # # # #
# # ]
2426 : : (uintptr_t)rdma_req, (uintptr_t)rqpair);
2427 : : /* Some external code must kick a request into RDMA_REQUEST_STATE_COMPLETED
2428 : : * to escape this state. */
2429 : 3821699 : break;
2430 : 5246407 : case RDMA_REQUEST_STATE_COMPLETING:
2431 [ + + + - : 5246407 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_COMPLETING, 0, 0,
# # # # #
# # # # #
# # ]
2432 : : (uintptr_t)rdma_req, (uintptr_t)rqpair);
2433 : : /* Some external code must kick a request into RDMA_REQUEST_STATE_COMPLETED
2434 : : * to escape this state. */
2435 : 5246407 : break;
2436 : 7796709 : case RDMA_REQUEST_STATE_COMPLETED:
2437 [ + + + - : 7796709 : spdk_trace_record(TRACE_RDMA_REQUEST_STATE_COMPLETED, 0, 0,
# # # # #
# # # # #
# # # # #
# # # ]
2438 : : (uintptr_t)rdma_req, (uintptr_t)rqpair, rqpair->qpair.queue_depth);
2439 : :
2440 [ # # # # : 7796709 : rqpair->poller->stat.request_latency += spdk_get_ticks() - rdma_req->receive_tsc;
# # # # #
# # # #
# ]
2441 : 7796709 : _nvmf_rdma_request_free(rdma_req, rtransport);
2442 : 7796709 : break;
2443 : 0 : case RDMA_REQUEST_NUM_STATES:
2444 : : default:
2445 [ # # ]: 0 : assert(0);
2446 : : break;
2447 : : }
2448 : :
2449 [ + + # # : 85647391 : if (rdma_req->state != prev_state) {
# # ]
2450 : 54211936 : progress = true;
2451 : 0 : }
2452 [ + + # # : 85647391 : } while (rdma_req->state != prev_state);
# # ]
2453 : :
2454 [ # # ]: 31435455 : return progress;
2455 : : }
2456 : :
2457 : : /* Public API callbacks begin here */
2458 : :
2459 : : #define SPDK_NVMF_RDMA_DEFAULT_MAX_QUEUE_DEPTH 128
2460 : : #define SPDK_NVMF_RDMA_DEFAULT_AQ_DEPTH 128
2461 : : #define SPDK_NVMF_RDMA_DEFAULT_SRQ_DEPTH 4096
2462 : : #define SPDK_NVMF_RDMA_DEFAULT_MAX_QPAIRS_PER_CTRLR 128
2463 : : #define SPDK_NVMF_RDMA_DEFAULT_IN_CAPSULE_DATA_SIZE 4096
2464 : : #define SPDK_NVMF_RDMA_DEFAULT_MAX_IO_SIZE 131072
2465 : : #define SPDK_NVMF_RDMA_MIN_IO_BUFFER_SIZE (SPDK_NVMF_RDMA_DEFAULT_MAX_IO_SIZE / SPDK_NVMF_MAX_SGL_ENTRIES)
2466 : : #define SPDK_NVMF_RDMA_DEFAULT_NUM_SHARED_BUFFERS 4095
2467 : : #define SPDK_NVMF_RDMA_DEFAULT_BUFFER_CACHE_SIZE UINT32_MAX
2468 : : #define SPDK_NVMF_RDMA_DEFAULT_NO_SRQ false
2469 : : #define SPDK_NVMF_RDMA_DIF_INSERT_OR_STRIP false
2470 : : #define SPDK_NVMF_RDMA_ACCEPTOR_BACKLOG 100
2471 : : #define SPDK_NVMF_RDMA_DEFAULT_ABORT_TIMEOUT_SEC 1
2472 : : #define SPDK_NVMF_RDMA_DEFAULT_NO_WR_BATCHING false
2473 : : #define SPDK_NVMF_RDMA_DEFAULT_DATA_WR_POOL_SIZE 4095
2474 : :
2475 : : static void
2476 : 48 : nvmf_rdma_opts_init(struct spdk_nvmf_transport_opts *opts)
2477 : : {
2478 [ # # # # ]: 48 : opts->max_queue_depth = SPDK_NVMF_RDMA_DEFAULT_MAX_QUEUE_DEPTH;
2479 [ # # # # ]: 48 : opts->max_qpairs_per_ctrlr = SPDK_NVMF_RDMA_DEFAULT_MAX_QPAIRS_PER_CTRLR;
2480 [ # # # # ]: 48 : opts->in_capsule_data_size = SPDK_NVMF_RDMA_DEFAULT_IN_CAPSULE_DATA_SIZE;
2481 [ # # # # ]: 48 : opts->max_io_size = SPDK_NVMF_RDMA_DEFAULT_MAX_IO_SIZE;
2482 [ # # # # ]: 48 : opts->io_unit_size = SPDK_NVMF_RDMA_MIN_IO_BUFFER_SIZE;
2483 [ # # # # ]: 48 : opts->max_aq_depth = SPDK_NVMF_RDMA_DEFAULT_AQ_DEPTH;
2484 [ # # # # ]: 48 : opts->num_shared_buffers = SPDK_NVMF_RDMA_DEFAULT_NUM_SHARED_BUFFERS;
2485 [ # # # # ]: 48 : opts->buf_cache_size = SPDK_NVMF_RDMA_DEFAULT_BUFFER_CACHE_SIZE;
2486 [ # # # # ]: 48 : opts->dif_insert_or_strip = SPDK_NVMF_RDMA_DIF_INSERT_OR_STRIP;
2487 [ # # # # ]: 48 : opts->abort_timeout_sec = SPDK_NVMF_RDMA_DEFAULT_ABORT_TIMEOUT_SEC;
2488 [ # # # # ]: 48 : opts->transport_specific = NULL;
2489 [ # # # # ]: 48 : opts->data_wr_pool_size = SPDK_NVMF_RDMA_DEFAULT_DATA_WR_POOL_SIZE;
2490 : 48 : }
2491 : :
2492 : : static int nvmf_rdma_destroy(struct spdk_nvmf_transport *transport,
2493 : : spdk_nvmf_transport_destroy_done_cb cb_fn, void *cb_arg);
2494 : :
2495 : : static inline bool
2496 : 2691 : nvmf_rdma_is_rxe_device(struct spdk_nvmf_rdma_device *device)
2497 : : {
2498 [ + - # # : 5382 : return device->attr.vendor_id == SPDK_RDMA_RXE_VENDOR_ID_OLD ||
# # # # ]
2499 [ - + # # : 2691 : device->attr.vendor_id == SPDK_RDMA_RXE_VENDOR_ID_NEW;
# # ]
2500 : : }
2501 : :
2502 : : static int nvmf_rdma_accept(void *ctx);
2503 : : static bool nvmf_rdma_retry_listen_port(struct spdk_nvmf_rdma_transport *rtransport);
2504 : : static void destroy_ib_device(struct spdk_nvmf_rdma_transport *rtransport,
2505 : : struct spdk_nvmf_rdma_device *device);
2506 : :
2507 : : static int
2508 : 90 : create_ib_device(struct spdk_nvmf_rdma_transport *rtransport, struct ibv_context *context,
2509 : : struct spdk_nvmf_rdma_device **new_device)
2510 : : {
2511 : : struct spdk_nvmf_rdma_device *device;
2512 : 90 : int flag = 0;
2513 : 90 : int rc = 0;
2514 : :
2515 : 90 : device = calloc(1, sizeof(*device));
2516 [ - + ]: 90 : if (!device) {
2517 : 0 : SPDK_ERRLOG("Unable to allocate memory for RDMA devices.\n");
2518 : 0 : return -ENOMEM;
2519 : : }
2520 [ # # # # ]: 90 : device->context = context;
2521 [ # # # # : 90 : rc = ibv_query_device(device->context, &device->attr);
# # ]
2522 [ - + ]: 90 : if (rc < 0) {
2523 : 0 : SPDK_ERRLOG("Failed to query RDMA device attributes.\n");
2524 : 0 : free(device);
2525 : 0 : return rc;
2526 : : }
2527 : :
2528 : : #ifdef SPDK_CONFIG_RDMA_SEND_WITH_INVAL
2529 [ - + # # : 90 : if ((device->attr.device_cap_flags & IBV_DEVICE_MEM_MGT_EXTENSIONS) == 0) {
# # # # ]
2530 : 0 : SPDK_WARNLOG("The libibverbs on this system supports SEND_WITH_INVALIDATE,");
2531 [ # # # # : 0 : SPDK_WARNLOG("but the device with vendor ID %u does not.\n", device->attr.vendor_id);
# # ]
2532 : 0 : }
2533 : :
2534 : : /**
2535 : : * The vendor ID is assigned by the IEEE and an ID of 0 implies Soft-RoCE.
2536 : : * The Soft-RoCE RXE driver does not currently support send with invalidate,
2537 : : * but incorrectly reports that it does. There are changes making their way
2538 : : * through the kernel now that will enable this feature. When they are merged,
2539 : : * we can conditionally enable this feature.
2540 : : *
2541 : : * TODO: enable this for versions of the kernel rxe driver that support it.
2542 : : */
2543 [ - + ]: 90 : if (nvmf_rdma_is_rxe_device(device)) {
2544 [ # # # # : 0 : device->attr.device_cap_flags &= ~(IBV_DEVICE_MEM_MGT_EXTENSIONS);
# # ]
2545 : 0 : }
2546 : : #endif
2547 : :
2548 : : /* set up device context async ev fd as NON_BLOCKING */
2549 [ # # # # : 90 : flag = fcntl(device->context->async_fd, F_GETFL);
# # # # ]
2550 [ # # # # : 90 : rc = fcntl(device->context->async_fd, F_SETFL, flag | O_NONBLOCK);
# # # # ]
2551 [ - + ]: 90 : if (rc < 0) {
2552 : 0 : SPDK_ERRLOG("Failed to set context async fd to NONBLOCK.\n");
2553 : 0 : free(device);
2554 : 0 : return rc;
2555 : : }
2556 : :
2557 [ # # # # : 90 : TAILQ_INSERT_TAIL(&rtransport->devices, device, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
2558 [ - + - + : 90 : SPDK_DEBUGLOG(rdma, "New device %p is added to RDMA transport\n", device);
# # ]
2559 : :
2560 [ - + ]: 90 : if (g_nvmf_hooks.get_ibv_pd) {
2561 [ # # # # : 0 : device->pd = g_nvmf_hooks.get_ibv_pd(NULL, device->context);
# # # # #
# # # ]
2562 : 0 : } else {
2563 [ # # # # : 90 : device->pd = ibv_alloc_pd(device->context);
# # # # ]
2564 : : }
2565 : :
2566 [ - + # # : 90 : if (!device->pd) {
# # ]
2567 : 0 : SPDK_ERRLOG("Unable to allocate protection domain.\n");
2568 : 0 : destroy_ib_device(rtransport, device);
2569 : 0 : return -ENOMEM;
2570 : : }
2571 : :
2572 [ - + # # : 90 : assert(device->map == NULL);
# # # # ]
2573 : :
2574 [ # # # # : 90 : device->map = spdk_rdma_utils_create_mem_map(device->pd, &g_nvmf_hooks, IBV_ACCESS_LOCAL_WRITE);
# # # # ]
2575 [ - + # # : 90 : if (!device->map) {
# # ]
2576 : 0 : SPDK_ERRLOG("Unable to allocate memory map for listen address\n");
2577 : 0 : destroy_ib_device(rtransport, device);
2578 : 0 : return -ENOMEM;
2579 : : }
2580 : :
2581 [ - + # # : 90 : assert(device->map != NULL);
# # # # ]
2582 [ - + # # : 90 : assert(device->pd != NULL);
# # # # ]
2583 : :
2584 [ + - ]: 90 : if (new_device) {
2585 [ # # ]: 90 : *new_device = device;
2586 : 0 : }
2587 [ # # # # ]: 90 : SPDK_NOTICELOG("Create IB device %s(%p/%p) succeed.\n", ibv_get_device_name(context->device),
2588 : : device, context);
2589 : :
2590 : 90 : return 0;
2591 : 0 : }
2592 : :
2593 : : static void
2594 : 45 : free_poll_fds(struct spdk_nvmf_rdma_transport *rtransport)
2595 : : {
2596 [ + - # # : 45 : if (rtransport->poll_fds) {
# # ]
2597 [ # # # # ]: 45 : free(rtransport->poll_fds);
2598 [ # # # # ]: 45 : rtransport->poll_fds = NULL;
2599 : 0 : }
2600 [ # # # # ]: 45 : rtransport->npoll_fds = 0;
2601 : 45 : }
2602 : :
2603 : : static int
2604 : 45 : generate_poll_fds(struct spdk_nvmf_rdma_transport *rtransport)
2605 : : {
2606 : : /* Set up poll descriptor array to monitor events from RDMA and IB
2607 : : * in a single poll syscall
2608 : : */
2609 : 45 : int device_count = 0;
2610 : 45 : int i = 0;
2611 : : struct spdk_nvmf_rdma_device *device, *tmp;
2612 : :
2613 [ + + # # : 135 : TAILQ_FOREACH_SAFE(device, &rtransport->devices, link, tmp) {
# # # # #
# # # # #
# # ]
2614 [ # # ]: 90 : device_count++;
2615 : 0 : }
2616 : :
2617 [ # # # # : 45 : rtransport->npoll_fds = device_count + 1;
# # ]
2618 : :
2619 [ # # # # : 45 : rtransport->poll_fds = calloc(rtransport->npoll_fds, sizeof(struct pollfd));
# # # # ]
2620 [ - + # # : 45 : if (rtransport->poll_fds == NULL) {
# # ]
2621 : 0 : SPDK_ERRLOG("poll_fds allocation failed\n");
2622 : 0 : return -ENOMEM;
2623 : : }
2624 : :
2625 [ # # # # : 45 : rtransport->poll_fds[i].fd = rtransport->event_channel->fd;
# # # # #
# # # # #
# # # # ]
2626 [ # # # # : 45 : rtransport->poll_fds[i++].events = POLLIN;
# # # # #
# # # ]
2627 : :
2628 [ + + # # : 135 : TAILQ_FOREACH_SAFE(device, &rtransport->devices, link, tmp) {
# # # # #
# # # # #
# # ]
2629 [ # # # # : 90 : rtransport->poll_fds[i].fd = device->context->async_fd;
# # # # #
# # # # #
# # # # ]
2630 [ # # # # : 90 : rtransport->poll_fds[i++].events = POLLIN;
# # # # #
# # # ]
2631 : 0 : }
2632 : :
2633 : 45 : return 0;
2634 : 0 : }
2635 : :
2636 : : static struct spdk_nvmf_transport *
2637 : 45 : nvmf_rdma_create(struct spdk_nvmf_transport_opts *opts)
2638 : : {
2639 : : int rc;
2640 : : struct spdk_nvmf_rdma_transport *rtransport;
2641 : 0 : struct spdk_nvmf_rdma_device *device;
2642 : : struct ibv_context **contexts;
2643 : : size_t data_wr_pool_size;
2644 : : uint32_t i;
2645 : : int flag;
2646 : : uint32_t sge_count;
2647 : : uint32_t min_shared_buffers;
2648 : : uint32_t min_in_capsule_data_size;
2649 : 45 : int max_device_sge = SPDK_NVMF_MAX_SGL_ENTRIES;
2650 : :
2651 : 45 : rtransport = calloc(1, sizeof(*rtransport));
2652 [ - + ]: 45 : if (!rtransport) {
2653 : 0 : return NULL;
2654 : : }
2655 : :
2656 [ # # # # : 45 : TAILQ_INIT(&rtransport->devices);
# # # # #
# # # # #
# # ]
2657 [ # # # # : 45 : TAILQ_INIT(&rtransport->ports);
# # # # #
# # # # #
# # ]
2658 [ # # # # : 45 : TAILQ_INIT(&rtransport->poll_groups);
# # # # #
# # # # #
# # ]
2659 [ # # # # : 45 : TAILQ_INIT(&rtransport->retry_ports);
# # # # #
# # # # #
# # ]
2660 : :
2661 [ # # # # : 45 : rtransport->transport.ops = &spdk_nvmf_transport_rdma;
# # ]
2662 [ # # # # : 45 : rtransport->rdma_opts.num_cqe = DEFAULT_NVMF_RDMA_CQ_SIZE;
# # ]
2663 [ # # # # : 45 : rtransport->rdma_opts.max_srq_depth = SPDK_NVMF_RDMA_DEFAULT_SRQ_DEPTH;
# # ]
2664 [ # # # # : 45 : rtransport->rdma_opts.no_srq = SPDK_NVMF_RDMA_DEFAULT_NO_SRQ;
# # ]
2665 [ # # # # : 45 : rtransport->rdma_opts.acceptor_backlog = SPDK_NVMF_RDMA_ACCEPTOR_BACKLOG;
# # ]
2666 [ # # # # : 45 : rtransport->rdma_opts.no_wr_batching = SPDK_NVMF_RDMA_DEFAULT_NO_WR_BATCHING;
# # ]
2667 [ + - - + : 90 : if (opts->transport_specific != NULL &&
# # # # ]
2668 [ # # # # ]: 45 : spdk_json_decode_object_relaxed(opts->transport_specific, rdma_transport_opts_decoder,
2669 : : SPDK_COUNTOF(rdma_transport_opts_decoder),
2670 [ # # ]: 45 : &rtransport->rdma_opts)) {
2671 : 0 : SPDK_ERRLOG("spdk_json_decode_object_relaxed failed\n");
2672 [ # # ]: 0 : nvmf_rdma_destroy(&rtransport->transport, NULL, NULL);
2673 : 0 : return NULL;
2674 : : }
2675 : :
2676 [ - + - + : 45 : SPDK_INFOLOG(rdma, "*** RDMA Transport Init ***\n"
- - - - #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # #
# ]
2677 : : " Transport opts: max_ioq_depth=%d, max_io_size=%d,\n"
2678 : : " max_io_qpairs_per_ctrlr=%d, io_unit_size=%d,\n"
2679 : : " in_capsule_data_size=%d, max_aq_depth=%d,\n"
2680 : : " num_shared_buffers=%d, num_cqe=%d, max_srq_depth=%d, no_srq=%d,"
2681 : : " acceptor_backlog=%d, no_wr_batching=%d abort_timeout_sec=%d\n",
2682 : : opts->max_queue_depth,
2683 : : opts->max_io_size,
2684 : : opts->max_qpairs_per_ctrlr - 1,
2685 : : opts->io_unit_size,
2686 : : opts->in_capsule_data_size,
2687 : : opts->max_aq_depth,
2688 : : opts->num_shared_buffers,
2689 : : rtransport->rdma_opts.num_cqe,
2690 : : rtransport->rdma_opts.max_srq_depth,
2691 : : rtransport->rdma_opts.no_srq,
2692 : : rtransport->rdma_opts.acceptor_backlog,
2693 : : rtransport->rdma_opts.no_wr_batching,
2694 : : opts->abort_timeout_sec);
2695 : :
2696 : : /* I/O unit size cannot be larger than max I/O size */
2697 [ - + # # : 45 : if (opts->io_unit_size > opts->max_io_size) {
# # # # #
# ]
2698 [ # # # # : 0 : opts->io_unit_size = opts->max_io_size;
# # # # ]
2699 : 0 : }
2700 : :
2701 [ - + # # : 45 : if (rtransport->rdma_opts.acceptor_backlog <= 0) {
# # # # ]
2702 : 0 : SPDK_ERRLOG("The acceptor backlog cannot be less than 1, setting to the default value of (%d).\n",
2703 : : SPDK_NVMF_RDMA_ACCEPTOR_BACKLOG);
2704 [ # # # # : 0 : rtransport->rdma_opts.acceptor_backlog = SPDK_NVMF_RDMA_ACCEPTOR_BACKLOG;
# # ]
2705 : 0 : }
2706 : :
2707 [ - + # # : 45 : if (opts->num_shared_buffers < (SPDK_NVMF_MAX_SGL_ENTRIES * 2)) {
# # ]
2708 [ # # # # ]: 0 : SPDK_ERRLOG("The number of shared data buffers (%d) is less than"
2709 : : "the minimum number required to guarantee that forward progress can be made (%d)\n",
2710 : : opts->num_shared_buffers, (SPDK_NVMF_MAX_SGL_ENTRIES * 2));
2711 [ # # ]: 0 : nvmf_rdma_destroy(&rtransport->transport, NULL, NULL);
2712 : 0 : return NULL;
2713 : : }
2714 : :
2715 : : /* If buf_cache_size == UINT32_MAX, we will dynamically pick a cache size later that we know will fit. */
2716 [ - + # # : 45 : if (opts->buf_cache_size < UINT32_MAX) {
# # ]
2717 [ # # # # ]: 0 : min_shared_buffers = spdk_env_get_core_count() * opts->buf_cache_size;
2718 [ # # # # : 0 : if (min_shared_buffers > opts->num_shared_buffers) {
# # ]
2719 [ # # # # ]: 0 : SPDK_ERRLOG("There are not enough buffers to satisfy"
2720 : : "per-poll group caches for each thread. (%" PRIu32 ")"
2721 : : "supplied. (%" PRIu32 ") required\n", opts->num_shared_buffers, min_shared_buffers);
2722 : 0 : SPDK_ERRLOG("Please specify a larger number of shared buffers\n");
2723 [ # # ]: 0 : nvmf_rdma_destroy(&rtransport->transport, NULL, NULL);
2724 : 0 : return NULL;
2725 : : }
2726 : 0 : }
2727 : :
2728 [ - + # # : 45 : sge_count = opts->max_io_size / opts->io_unit_size;
# # # # #
# ]
2729 [ - + ]: 45 : if (sge_count > NVMF_DEFAULT_TX_SGE) {
2730 [ # # # # ]: 0 : SPDK_ERRLOG("Unsupported IO Unit size specified, %d bytes\n", opts->io_unit_size);
2731 [ # # ]: 0 : nvmf_rdma_destroy(&rtransport->transport, NULL, NULL);
2732 : 0 : return NULL;
2733 : : }
2734 : :
2735 : 45 : min_in_capsule_data_size = sizeof(struct spdk_nvme_sgl_descriptor) * SPDK_NVMF_MAX_SGL_ENTRIES;
2736 [ + + # # : 45 : if (opts->in_capsule_data_size < min_in_capsule_data_size) {
# # ]
2737 : 4 : SPDK_WARNLOG("In capsule data size is set to %u, this is minimum size required to support msdbd=16\n",
2738 : : min_in_capsule_data_size);
2739 [ # # # # ]: 4 : opts->in_capsule_data_size = min_in_capsule_data_size;
2740 : 0 : }
2741 : :
2742 [ # # # # ]: 45 : rtransport->event_channel = rdma_create_event_channel();
2743 [ - + # # : 45 : if (rtransport->event_channel == NULL) {
# # ]
2744 [ # # ]: 0 : SPDK_ERRLOG("rdma_create_event_channel() failed, %s\n", spdk_strerror(errno));
2745 [ # # ]: 0 : nvmf_rdma_destroy(&rtransport->transport, NULL, NULL);
2746 : 0 : return NULL;
2747 : : }
2748 : :
2749 [ # # # # : 45 : flag = fcntl(rtransport->event_channel->fd, F_GETFL);
# # # # ]
2750 [ - + # # : 45 : if (fcntl(rtransport->event_channel->fd, F_SETFL, flag | O_NONBLOCK) < 0) {
# # # # #
# ]
2751 [ # # # # : 0 : SPDK_ERRLOG("fcntl can't set nonblocking mode for socket, fd: %d (%s)\n",
# # # # #
# ]
2752 : : rtransport->event_channel->fd, spdk_strerror(errno));
2753 [ # # ]: 0 : nvmf_rdma_destroy(&rtransport->transport, NULL, NULL);
2754 : 0 : return NULL;
2755 : : }
2756 : :
2757 [ # # # # ]: 45 : data_wr_pool_size = opts->data_wr_pool_size;
2758 [ - + ]: 45 : if (data_wr_pool_size < SPDK_NVMF_MAX_SGL_ENTRIES * 2 * spdk_env_get_core_count()) {
2759 : 0 : data_wr_pool_size = SPDK_NVMF_MAX_SGL_ENTRIES * 2 * spdk_env_get_core_count();
2760 : 0 : SPDK_NOTICELOG("data_wr_pool_size is changed to %zu to guarantee enough cache for handling "
2761 : : "at least one IO in each core\n", data_wr_pool_size);
2762 : 0 : }
2763 [ # # # # ]: 45 : rtransport->data_wr_pool = spdk_mempool_create("spdk_nvmf_rdma_wr_data", data_wr_pool_size,
2764 : : sizeof(struct spdk_nvmf_rdma_request_data), SPDK_MEMPOOL_DEFAULT_CACHE_SIZE,
2765 : : SPDK_ENV_NUMA_ID_ANY);
2766 [ - + # # : 45 : if (!rtransport->data_wr_pool) {
# # ]
2767 [ # # ]: 0 : if (spdk_mempool_lookup("spdk_nvmf_rdma_wr_data") != NULL) {
2768 : 0 : SPDK_ERRLOG("Unable to allocate work request pool for poll group: already exists\n");
2769 : 0 : SPDK_ERRLOG("Probably running in multiprocess environment, which is "
2770 : : "unsupported by the nvmf library\n");
2771 : 0 : } else {
2772 : 0 : SPDK_ERRLOG("Unable to allocate work request pool for poll group\n");
2773 : : }
2774 [ # # ]: 0 : nvmf_rdma_destroy(&rtransport->transport, NULL, NULL);
2775 : 0 : return NULL;
2776 : : }
2777 : :
2778 : 45 : contexts = rdma_get_devices(NULL);
2779 [ - + ]: 45 : if (contexts == NULL) {
2780 [ # # # # ]: 0 : SPDK_ERRLOG("rdma_get_devices() failed: %s (%d)\n", spdk_strerror(errno), errno);
2781 [ # # ]: 0 : nvmf_rdma_destroy(&rtransport->transport, NULL, NULL);
2782 : 0 : return NULL;
2783 : : }
2784 : :
2785 : 45 : i = 0;
2786 : 45 : rc = 0;
2787 [ + + # # : 135 : while (contexts[i] != NULL) {
# # ]
2788 [ # # # # ]: 90 : rc = create_ib_device(rtransport, contexts[i], &device);
2789 [ - + ]: 90 : if (rc < 0) {
2790 : 0 : break;
2791 : : }
2792 : 90 : i++;
2793 [ # # # # : 90 : max_device_sge = spdk_min(max_device_sge, device->attr.max_sge);
# # # # #
# # # #
# ]
2794 [ # # # # ]: 90 : device->is_ready = true;
2795 : : }
2796 : 45 : rdma_free_devices(contexts);
2797 : :
2798 [ - + # # : 45 : if (opts->io_unit_size * max_device_sge < opts->max_io_size) {
# # # # #
# ]
2799 : : /* divide and round up. */
2800 [ # # # # : 0 : opts->io_unit_size = (opts->max_io_size + max_device_sge - 1) / max_device_sge;
# # # # #
# ]
2801 : :
2802 : : /* round up to the nearest 4k. */
2803 [ # # # # : 0 : opts->io_unit_size = (opts->io_unit_size + NVMF_DATA_BUFFER_ALIGNMENT - 1) & ~NVMF_DATA_BUFFER_MASK;
# # # # #
# # # ]
2804 : :
2805 [ # # # # : 0 : opts->io_unit_size = spdk_max(opts->io_unit_size, SPDK_NVMF_RDMA_MIN_IO_BUFFER_SIZE);
# # # # #
# # # #
# ]
2806 [ # # # # ]: 0 : SPDK_NOTICELOG("Adjusting the io unit size to fit the device's maximum I/O size. New I/O unit size %u\n",
2807 : : opts->io_unit_size);
2808 : 0 : }
2809 : :
2810 [ - + ]: 45 : if (rc < 0) {
2811 [ # # ]: 0 : nvmf_rdma_destroy(&rtransport->transport, NULL, NULL);
2812 : 0 : return NULL;
2813 : : }
2814 : :
2815 : 45 : rc = generate_poll_fds(rtransport);
2816 [ - + ]: 45 : if (rc < 0) {
2817 [ # # ]: 0 : nvmf_rdma_destroy(&rtransport->transport, NULL, NULL);
2818 : 0 : return NULL;
2819 : : }
2820 : :
2821 [ # # # # : 45 : rtransport->accept_poller = SPDK_POLLER_REGISTER(nvmf_rdma_accept, &rtransport->transport,
# # # # #
# ]
2822 : : opts->acceptor_poll_rate);
2823 [ - + # # : 45 : if (!rtransport->accept_poller) {
# # ]
2824 [ # # ]: 0 : nvmf_rdma_destroy(&rtransport->transport, NULL, NULL);
2825 : 0 : return NULL;
2826 : : }
2827 : :
2828 [ # # ]: 45 : return &rtransport->transport;
2829 : 0 : }
2830 : :
2831 : : static void
2832 : 90 : destroy_ib_device(struct spdk_nvmf_rdma_transport *rtransport,
2833 : : struct spdk_nvmf_rdma_device *device)
2834 : : {
2835 [ + + # # : 90 : TAILQ_REMOVE(&rtransport->devices, device, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
2836 [ # # ]: 90 : spdk_rdma_utils_free_mem_map(&device->map);
2837 [ + - # # : 90 : if (device->pd) {
# # ]
2838 [ + - ]: 90 : if (!g_nvmf_hooks.get_ibv_pd) {
2839 [ # # # # ]: 90 : ibv_dealloc_pd(device->pd);
2840 : 0 : }
2841 : 0 : }
2842 [ - + - + : 90 : SPDK_DEBUGLOG(rdma, "IB device [%p] is destroyed.\n", device);
# # ]
2843 : 90 : free(device);
2844 : 90 : }
2845 : :
2846 : : static void
2847 : 44 : nvmf_rdma_dump_opts(struct spdk_nvmf_transport *transport, struct spdk_json_write_ctx *w)
2848 : : {
2849 : : struct spdk_nvmf_rdma_transport *rtransport;
2850 [ - + # # ]: 44 : assert(w != NULL);
2851 : :
2852 : 44 : rtransport = SPDK_CONTAINEROF(transport, struct spdk_nvmf_rdma_transport, transport);
2853 [ # # # # : 44 : spdk_json_write_named_uint32(w, "max_srq_depth", rtransport->rdma_opts.max_srq_depth);
# # ]
2854 [ - + # # : 44 : spdk_json_write_named_bool(w, "no_srq", rtransport->rdma_opts.no_srq);
# # # # ]
2855 [ - + - + : 44 : if (rtransport->rdma_opts.no_srq == true) {
# # # # #
# ]
2856 [ # # # # : 0 : spdk_json_write_named_int32(w, "num_cqe", rtransport->rdma_opts.num_cqe);
# # ]
2857 : 0 : }
2858 [ # # # # : 44 : spdk_json_write_named_int32(w, "acceptor_backlog", rtransport->rdma_opts.acceptor_backlog);
# # ]
2859 [ - + # # : 44 : spdk_json_write_named_bool(w, "no_wr_batching", rtransport->rdma_opts.no_wr_batching);
# # # # ]
2860 : 44 : }
2861 : :
2862 : : static int
2863 : 45 : nvmf_rdma_destroy(struct spdk_nvmf_transport *transport,
2864 : : spdk_nvmf_transport_destroy_done_cb cb_fn, void *cb_arg)
2865 : : {
2866 : : struct spdk_nvmf_rdma_transport *rtransport;
2867 : : struct spdk_nvmf_rdma_port *port, *port_tmp;
2868 : : struct spdk_nvmf_rdma_device *device, *device_tmp;
2869 : :
2870 : 45 : rtransport = SPDK_CONTAINEROF(transport, struct spdk_nvmf_rdma_transport, transport);
2871 : :
2872 [ - + # # : 45 : TAILQ_FOREACH_SAFE(port, &rtransport->retry_ports, link, port_tmp) {
# # # # #
# # # # #
# # ]
2873 [ # # # # : 0 : TAILQ_REMOVE(&rtransport->retry_ports, port, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
2874 : 0 : free(port);
2875 : 0 : }
2876 : :
2877 [ - + # # : 45 : TAILQ_FOREACH_SAFE(port, &rtransport->ports, link, port_tmp) {
# # # # #
# # # # #
# # ]
2878 [ # # # # : 0 : TAILQ_REMOVE(&rtransport->ports, port, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
2879 [ # # # # ]: 0 : rdma_destroy_id(port->id);
2880 : 0 : free(port);
2881 : 0 : }
2882 : :
2883 : 45 : free_poll_fds(rtransport);
2884 : :
2885 [ + - # # : 45 : if (rtransport->event_channel != NULL) {
# # ]
2886 [ # # # # ]: 45 : rdma_destroy_event_channel(rtransport->event_channel);
2887 : 0 : }
2888 : :
2889 [ + + # # : 135 : TAILQ_FOREACH_SAFE(device, &rtransport->devices, link, device_tmp) {
# # # # #
# # # # #
# # ]
2890 : 90 : destroy_ib_device(rtransport, device);
2891 : 0 : }
2892 : :
2893 [ + - # # : 45 : if (rtransport->data_wr_pool != NULL) {
# # ]
2894 [ - + # # : 45 : if (spdk_mempool_count(rtransport->data_wr_pool) != transport->opts.data_wr_pool_size) {
# # # # #
# # # ]
2895 [ # # # # : 0 : SPDK_ERRLOG("transport wr pool count is %zu but should be %u\n",
# # # # #
# # # ]
2896 : : spdk_mempool_count(rtransport->data_wr_pool),
2897 : : transport->opts.max_queue_depth * SPDK_NVMF_MAX_SGL_ENTRIES);
2898 : 0 : }
2899 : 0 : }
2900 : :
2901 [ # # # # ]: 45 : spdk_mempool_free(rtransport->data_wr_pool);
2902 : :
2903 [ # # ]: 45 : spdk_poller_unregister(&rtransport->accept_poller);
2904 : 45 : free(rtransport);
2905 : :
2906 [ + - ]: 45 : if (cb_fn) {
2907 [ # # # # ]: 45 : cb_fn(cb_arg);
2908 : 0 : }
2909 : 45 : return 0;
2910 : : }
2911 : :
2912 : : static int nvmf_rdma_trid_from_cm_id(struct rdma_cm_id *id,
2913 : : struct spdk_nvme_transport_id *trid,
2914 : : bool peer);
2915 : :
2916 : : static bool nvmf_rdma_rescan_devices(struct spdk_nvmf_rdma_transport *rtransport);
2917 : :
2918 : : static int
2919 : 65 : nvmf_rdma_listen(struct spdk_nvmf_transport *transport, const struct spdk_nvme_transport_id *trid,
2920 : : struct spdk_nvmf_listen_opts *listen_opts)
2921 : : {
2922 : : struct spdk_nvmf_rdma_transport *rtransport;
2923 : : struct spdk_nvmf_rdma_device *device;
2924 : : struct spdk_nvmf_rdma_port *port, *tmp_port;
2925 : 0 : struct addrinfo *res;
2926 : 0 : struct addrinfo hints;
2927 : : int family;
2928 : : int rc;
2929 : : long int port_val;
2930 : 65 : bool is_retry = false;
2931 : :
2932 [ - + # # : 65 : if (!strlen(trid->trsvcid)) {
# # ]
2933 : 0 : SPDK_ERRLOG("Service id is required\n");
2934 : 0 : return -EINVAL;
2935 : : }
2936 : :
2937 : 65 : rtransport = SPDK_CONTAINEROF(transport, struct spdk_nvmf_rdma_transport, transport);
2938 [ - + # # : 65 : assert(rtransport->event_channel != NULL);
# # # # ]
2939 : :
2940 : 65 : port = calloc(1, sizeof(*port));
2941 [ - + ]: 65 : if (!port) {
2942 : 0 : SPDK_ERRLOG("Port allocation failed\n");
2943 : 0 : return -ENOMEM;
2944 : : }
2945 : :
2946 [ # # # # ]: 65 : port->trid = trid;
2947 : :
2948 [ + - - # : 65 : switch (trid->adrfam) {
# # # ]
2949 : 65 : case SPDK_NVMF_ADRFAM_IPV4:
2950 : 65 : family = AF_INET;
2951 : 65 : break;
2952 : 0 : case SPDK_NVMF_ADRFAM_IPV6:
2953 : 0 : family = AF_INET6;
2954 : 0 : break;
2955 : 0 : default:
2956 [ # # # # ]: 0 : SPDK_ERRLOG("Unhandled ADRFAM %d\n", trid->adrfam);
2957 : 0 : free(port);
2958 : 0 : return -EINVAL;
2959 : : }
2960 : :
2961 [ - + ]: 65 : memset(&hints, 0, sizeof(hints));
2962 [ # # ]: 65 : hints.ai_family = family;
2963 : 65 : hints.ai_flags = AI_NUMERICSERV;
2964 [ # # ]: 65 : hints.ai_socktype = SOCK_STREAM;
2965 [ # # ]: 65 : hints.ai_protocol = 0;
2966 : :
2967 : : /* Range check the trsvcid. Fail in 3 cases:
2968 : : * < 0: means that spdk_strtol hit an error
2969 : : * 0: this results in ephemeral port which we don't want
2970 : : * > 65535: port too high
2971 : : */
2972 [ # # ]: 65 : port_val = spdk_strtol(trid->trsvcid, 10);
2973 [ + - - + ]: 65 : if (port_val <= 0 || port_val > 65535) {
2974 [ # # ]: 0 : SPDK_ERRLOG("invalid trsvcid %s\n", trid->trsvcid);
2975 : 0 : free(port);
2976 : 0 : return -EINVAL;
2977 : : }
2978 : :
2979 [ # # # # ]: 65 : rc = getaddrinfo(trid->traddr, trid->trsvcid, &hints, &res);
2980 [ - + ]: 65 : if (rc) {
2981 : 0 : SPDK_ERRLOG("getaddrinfo failed: %s (%d)\n", gai_strerror(rc), rc);
2982 : 0 : free(port);
2983 [ # # ]: 0 : return -(abs(rc));
2984 : : }
2985 : :
2986 [ # # # # : 65 : rc = rdma_create_id(rtransport->event_channel, &port->id, port, RDMA_PS_TCP);
# # ]
2987 [ - + ]: 65 : if (rc < 0) {
2988 : 0 : SPDK_ERRLOG("rdma_create_id() failed\n");
2989 : 0 : freeaddrinfo(res);
2990 : 0 : free(port);
2991 : 0 : return rc;
2992 : : }
2993 : :
2994 [ # # # # : 65 : rc = rdma_bind_addr(port->id, res->ai_addr);
# # # # ]
2995 : 65 : freeaddrinfo(res);
2996 : :
2997 [ - + ]: 65 : if (rc < 0) {
2998 [ # # # # : 0 : TAILQ_FOREACH(tmp_port, &rtransport->retry_ports, link) {
# # # # #
# # # #
# ]
2999 [ # # # # : 0 : if (spdk_nvme_transport_id_compare(tmp_port->trid, trid) == 0) {
# # ]
3000 : 0 : is_retry = true;
3001 : 0 : break;
3002 : : }
3003 : 0 : }
3004 [ # # # # ]: 0 : if (!is_retry) {
3005 : 0 : SPDK_ERRLOG("rdma_bind_addr() failed\n");
3006 : 0 : }
3007 [ # # # # ]: 0 : rdma_destroy_id(port->id);
3008 : 0 : free(port);
3009 : 0 : return rc;
3010 : : }
3011 : :
3012 [ - + # # : 65 : if (!port->id->verbs) {
# # # # #
# ]
3013 : 0 : SPDK_ERRLOG("ibv_context is null\n");
3014 [ # # # # ]: 0 : rdma_destroy_id(port->id);
3015 : 0 : free(port);
3016 : 0 : return -1;
3017 : : }
3018 : :
3019 [ # # # # : 65 : rc = rdma_listen(port->id, rtransport->rdma_opts.acceptor_backlog);
# # # # #
# ]
3020 [ - + ]: 65 : if (rc < 0) {
3021 : 0 : SPDK_ERRLOG("rdma_listen() failed\n");
3022 [ # # # # ]: 0 : rdma_destroy_id(port->id);
3023 : 0 : free(port);
3024 : 0 : return rc;
3025 : : }
3026 : :
3027 [ + - # # : 66 : TAILQ_FOREACH(device, &rtransport->devices, link) {
# # # # #
# # # #
# ]
3028 [ + + - + : 66 : if (device->context == port->id->verbs && device->is_ready) {
+ - # # #
# # # # #
# # # # #
# # # ]
3029 [ # # # # ]: 65 : port->device = device;
3030 : 65 : break;
3031 : : }
3032 : 0 : }
3033 [ - + # # : 65 : if (!port->device) {
# # ]
3034 [ # # # # : 0 : SPDK_ERRLOG("Accepted a connection with verbs %p, but unable to find a corresponding device.\n",
# # # # ]
3035 : : port->id->verbs);
3036 [ # # # # ]: 0 : rdma_destroy_id(port->id);
3037 : 0 : free(port);
3038 : 0 : nvmf_rdma_rescan_devices(rtransport);
3039 : 0 : return -EINVAL;
3040 : : }
3041 : :
3042 [ # # # # ]: 65 : SPDK_NOTICELOG("*** NVMe/RDMA Target Listening on %s port %s ***\n",
3043 : : trid->traddr, trid->trsvcid);
3044 : :
3045 [ # # # # : 65 : TAILQ_INSERT_TAIL(&rtransport->ports, port, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
3046 : 65 : return 0;
3047 : 0 : }
3048 : :
3049 : : static void
3050 : 65 : nvmf_rdma_stop_listen_ex(struct spdk_nvmf_transport *transport,
3051 : : const struct spdk_nvme_transport_id *trid, bool need_retry)
3052 : : {
3053 : : struct spdk_nvmf_rdma_transport *rtransport;
3054 : : struct spdk_nvmf_rdma_port *port, *tmp;
3055 : :
3056 : 65 : rtransport = SPDK_CONTAINEROF(transport, struct spdk_nvmf_rdma_transport, transport);
3057 : :
3058 [ + - # # ]: 65 : if (!need_retry) {
3059 [ - + # # : 65 : TAILQ_FOREACH_SAFE(port, &rtransport->retry_ports, link, tmp) {
# # # # #
# # # # #
# # ]
3060 [ # # # # : 0 : if (spdk_nvme_transport_id_compare(port->trid, trid) == 0) {
# # ]
3061 [ # # # # : 0 : TAILQ_REMOVE(&rtransport->retry_ports, port, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
3062 : 0 : free(port);
3063 : 0 : }
3064 : 0 : }
3065 : 0 : }
3066 : :
3067 [ + - # # : 74 : TAILQ_FOREACH_SAFE(port, &rtransport->ports, link, tmp) {
# # # # #
# # # # #
# # ]
3068 [ + + # # : 74 : if (spdk_nvme_transport_id_compare(port->trid, trid) == 0) {
# # ]
3069 [ - + - + : 65 : SPDK_DEBUGLOG(rdma, "Port %s:%s removed. need retry: %d\n",
# # # # #
# # # # #
# # # # #
# ]
3070 : : port->trid->traddr, port->trid->trsvcid, need_retry);
3071 [ + + # # : 65 : TAILQ_REMOVE(&rtransport->ports, port, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
3072 [ # # # # ]: 65 : rdma_destroy_id(port->id);
3073 [ # # # # ]: 65 : port->id = NULL;
3074 [ # # # # ]: 65 : port->device = NULL;
3075 [ - + # # ]: 65 : if (need_retry) {
3076 [ # # # # : 0 : TAILQ_INSERT_TAIL(&rtransport->retry_ports, port, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
3077 : 0 : } else {
3078 : 65 : free(port);
3079 : : }
3080 : 65 : break;
3081 : : }
3082 : 0 : }
3083 : 65 : }
3084 : :
3085 : : static void
3086 : 65 : nvmf_rdma_stop_listen(struct spdk_nvmf_transport *transport,
3087 : : const struct spdk_nvme_transport_id *trid)
3088 : : {
3089 : 65 : nvmf_rdma_stop_listen_ex(transport, trid, false);
3090 : 65 : }
3091 : :
3092 : : static void _nvmf_rdma_register_poller_in_group(void *c);
3093 : : static void _nvmf_rdma_remove_poller_in_group(void *c);
3094 : :
3095 : : static bool
3096 : 0 : nvmf_rdma_all_pollers_management_done(void *c)
3097 : : {
3098 : 0 : struct poller_manage_ctx *ctx = c;
3099 : : int counter;
3100 : :
3101 [ # # # # ]: 0 : counter = __atomic_sub_fetch(ctx->inflight_op_counter, 1, __ATOMIC_SEQ_CST);
3102 [ # # # # : 0 : SPDK_DEBUGLOG(rdma, "nvmf_rdma_all_pollers_management_done called. counter: %d, poller: %p\n",
# # # # #
# ]
3103 : : counter, ctx->rpoller);
3104 : :
3105 [ # # ]: 0 : if (counter == 0) {
3106 [ # # # # ]: 0 : free((void *)ctx->inflight_op_counter);
3107 : 0 : }
3108 : 0 : free(ctx);
3109 : :
3110 : 0 : return counter == 0;
3111 : : }
3112 : :
3113 : : static int
3114 : 0 : nvmf_rdma_manage_poller(struct spdk_nvmf_rdma_transport *rtransport,
3115 : : struct spdk_nvmf_rdma_device *device, bool *has_inflight, bool is_add)
3116 : : {
3117 : : struct spdk_nvmf_rdma_poll_group *rgroup;
3118 : : struct spdk_nvmf_rdma_poller *rpoller;
3119 : : struct spdk_nvmf_poll_group *poll_group;
3120 : : struct poller_manage_ctx *ctx;
3121 : : bool found;
3122 : : int *inflight_counter;
3123 : : spdk_msg_fn do_fn;
3124 : :
3125 [ # # ]: 0 : *has_inflight = false;
3126 [ # # ]: 0 : do_fn = is_add ? _nvmf_rdma_register_poller_in_group : _nvmf_rdma_remove_poller_in_group;
3127 : 0 : inflight_counter = calloc(1, sizeof(int));
3128 [ # # ]: 0 : if (!inflight_counter) {
3129 : 0 : SPDK_ERRLOG("Failed to allocate inflight counter when removing pollers\n");
3130 : 0 : return -ENOMEM;
3131 : : }
3132 : :
3133 [ # # # # : 0 : TAILQ_FOREACH(rgroup, &rtransport->poll_groups, link) {
# # # # #
# # # #
# ]
3134 [ # # ]: 0 : (*inflight_counter)++;
3135 : 0 : }
3136 : :
3137 [ # # # # : 0 : TAILQ_FOREACH(rgroup, &rtransport->poll_groups, link) {
# # # # #
# # # #
# ]
3138 : 0 : found = false;
3139 [ # # # # : 0 : TAILQ_FOREACH(rpoller, &rgroup->pollers, link) {
# # # # #
# # # #
# ]
3140 [ # # # # : 0 : if (rpoller->device == device) {
# # ]
3141 : 0 : found = true;
3142 : 0 : break;
3143 : : }
3144 : 0 : }
3145 [ # # # # : 0 : if (found == is_add) {
# # ]
3146 : 0 : __atomic_fetch_sub(inflight_counter, 1, __ATOMIC_SEQ_CST);
3147 : 0 : continue;
3148 : : }
3149 : :
3150 : 0 : ctx = calloc(1, sizeof(struct poller_manage_ctx));
3151 [ # # ]: 0 : if (!ctx) {
3152 : 0 : SPDK_ERRLOG("Failed to allocate poller_manage_ctx when removing pollers\n");
3153 [ # # # # : 0 : if (!*has_inflight) {
# # ]
3154 : 0 : free(inflight_counter);
3155 : 0 : }
3156 : 0 : return -ENOMEM;
3157 : : }
3158 : :
3159 [ # # # # ]: 0 : ctx->rtransport = rtransport;
3160 [ # # # # ]: 0 : ctx->rgroup = rgroup;
3161 [ # # # # ]: 0 : ctx->rpoller = rpoller;
3162 [ # # # # ]: 0 : ctx->device = device;
3163 [ # # # # ]: 0 : ctx->thread = spdk_get_thread();
3164 [ # # # # ]: 0 : ctx->inflight_op_counter = inflight_counter;
3165 [ # # ]: 0 : *has_inflight = true;
3166 : :
3167 [ # # # # : 0 : poll_group = rgroup->group.group;
# # ]
3168 [ # # # # : 0 : if (poll_group->thread != spdk_get_thread()) {
# # ]
3169 [ # # # # ]: 0 : spdk_thread_send_msg(poll_group->thread, do_fn, ctx);
3170 : 0 : } else {
3171 [ # # # # ]: 0 : do_fn(ctx);
3172 : : }
3173 : 0 : }
3174 : :
3175 [ # # # # : 0 : if (!*has_inflight) {
# # ]
3176 : 0 : free(inflight_counter);
3177 : 0 : }
3178 : :
3179 : 0 : return 0;
3180 : 0 : }
3181 : :
3182 : : static void nvmf_rdma_handle_device_removal(struct spdk_nvmf_rdma_transport *rtransport,
3183 : : struct spdk_nvmf_rdma_device *device);
3184 : :
3185 : : static struct spdk_nvmf_rdma_device *
3186 : 0 : nvmf_rdma_find_ib_device(struct spdk_nvmf_rdma_transport *rtransport,
3187 : : struct ibv_context *context)
3188 : : {
3189 : : struct spdk_nvmf_rdma_device *device, *tmp_device;
3190 : :
3191 [ # # # # : 0 : TAILQ_FOREACH_SAFE(device, &rtransport->devices, link, tmp_device) {
# # # # #
# # # # #
# # ]
3192 [ # # # # : 0 : if (device->need_destroy) {
# # # # ]
3193 : 0 : continue;
3194 : : }
3195 : :
3196 [ # # # # : 0 : if (strcmp(device->context->device->dev_name, context->device->dev_name) == 0) {
# # # # #
# # # # #
# # # # #
# # # ]
3197 : 0 : return device;
3198 : : }
3199 : 0 : }
3200 : :
3201 : 0 : return NULL;
3202 : 0 : }
3203 : :
3204 : : static bool
3205 : 0 : nvmf_rdma_check_devices_context(struct spdk_nvmf_rdma_transport *rtransport,
3206 : : struct ibv_context *context)
3207 : : {
3208 : 0 : struct spdk_nvmf_rdma_device *old_device, *new_device;
3209 : 0 : int rc = 0;
3210 : 0 : bool has_inflight;
3211 : :
3212 : 0 : old_device = nvmf_rdma_find_ib_device(rtransport, context);
3213 : :
3214 [ # # ]: 0 : if (old_device) {
3215 [ # # # # : 0 : if (old_device->context != context && !old_device->need_destroy && old_device->is_ready) {
# # # # #
# # # # #
# # # # #
# # # ]
3216 : : /* context may not have time to be cleaned when rescan. exactly one context
3217 : : * is valid for a device so this context must be invalid and just remove it. */
3218 [ # # # # ]: 0 : SPDK_WARNLOG("Device %p has a invalid context %p\n", old_device, old_device->context);
3219 [ # # # # ]: 0 : old_device->need_destroy = true;
3220 : 0 : nvmf_rdma_handle_device_removal(rtransport, old_device);
3221 : 0 : }
3222 : 0 : return false;
3223 : : }
3224 : :
3225 : 0 : rc = create_ib_device(rtransport, context, &new_device);
3226 : : /* TODO: update transport opts. */
3227 [ # # ]: 0 : if (rc < 0) {
3228 [ # # # # ]: 0 : SPDK_ERRLOG("Failed to create ib device for context: %s(%p)\n",
3229 : : ibv_get_device_name(context->device), context);
3230 : 0 : return false;
3231 : : }
3232 : :
3233 : 0 : rc = nvmf_rdma_manage_poller(rtransport, new_device, &has_inflight, true);
3234 [ # # ]: 0 : if (rc < 0) {
3235 [ # # # # ]: 0 : SPDK_ERRLOG("Failed to add poller for device context: %s(%p)\n",
3236 : : ibv_get_device_name(context->device), context);
3237 : 0 : return false;
3238 : : }
3239 : :
3240 [ # # # # ]: 0 : if (has_inflight) {
3241 [ # # # # ]: 0 : new_device->is_ready = true;
3242 : 0 : }
3243 : :
3244 : 0 : return true;
3245 : 0 : }
3246 : :
3247 : : static bool
3248 : 0 : nvmf_rdma_rescan_devices(struct spdk_nvmf_rdma_transport *rtransport)
3249 : : {
3250 : : struct spdk_nvmf_rdma_device *device;
3251 : 0 : struct ibv_device **ibv_device_list = NULL;
3252 : 0 : struct ibv_context **contexts = NULL;
3253 : 0 : int i = 0;
3254 : 0 : int num_dev = 0;
3255 : 0 : bool new_create = false, has_new_device = false;
3256 : 0 : struct ibv_context *tmp_verbs = NULL;
3257 : :
3258 : : /* do not rescan when any device is destroying, or context may be freed when
3259 : : * regenerating the poll fds.
3260 : : */
3261 [ # # # # : 0 : TAILQ_FOREACH(device, &rtransport->devices, link) {
# # # # #
# # # #
# ]
3262 [ # # # # : 0 : if (device->need_destroy) {
# # # # ]
3263 : 0 : return false;
3264 : : }
3265 : 0 : }
3266 : :
3267 : 0 : ibv_device_list = ibv_get_device_list(&num_dev);
3268 : :
3269 : : /* There is a bug in librdmacm. If verbs init failed in rdma_get_devices, it'll be
3270 : : * marked as dead verbs and never be init again. So we need to make sure the
3271 : : * verbs is available before we call rdma_get_devices. */
3272 [ # # ]: 0 : if (num_dev >= 0) {
3273 [ # # # # ]: 0 : for (i = 0; i < num_dev; i++) {
3274 [ # # # # ]: 0 : tmp_verbs = ibv_open_device(ibv_device_list[i]);
3275 [ # # ]: 0 : if (!tmp_verbs) {
3276 [ # # # # : 0 : SPDK_WARNLOG("Failed to init ibv device %p, err %d. Skip rescan.\n", ibv_device_list[i], errno);
# # ]
3277 : 0 : break;
3278 : : }
3279 [ # # ]: 0 : if (nvmf_rdma_find_ib_device(rtransport, tmp_verbs) == NULL) {
3280 [ # # # # : 0 : SPDK_DEBUGLOG(rdma, "Find new verbs init ibv device %p(%s).\n", ibv_device_list[i],
# # # # #
# # # # #
# # ]
3281 : : tmp_verbs->device->dev_name);
3282 : 0 : has_new_device = true;
3283 : 0 : }
3284 : 0 : ibv_close_device(tmp_verbs);
3285 : 0 : }
3286 : 0 : ibv_free_device_list(ibv_device_list);
3287 [ # # # # : 0 : if (!tmp_verbs || !has_new_device) {
# # ]
3288 : 0 : return false;
3289 : : }
3290 : 0 : }
3291 : :
3292 : 0 : contexts = rdma_get_devices(NULL);
3293 : :
3294 [ # # # # : 0 : for (i = 0; contexts && contexts[i] != NULL; i++) {
# # # # #
# ]
3295 [ # # # # : 0 : new_create |= nvmf_rdma_check_devices_context(rtransport, contexts[i]);
# # ]
3296 : 0 : }
3297 : :
3298 [ # # # # ]: 0 : if (new_create) {
3299 : 0 : free_poll_fds(rtransport);
3300 : 0 : generate_poll_fds(rtransport);
3301 : 0 : }
3302 : :
3303 [ # # ]: 0 : if (contexts) {
3304 : 0 : rdma_free_devices(contexts);
3305 : 0 : }
3306 : :
3307 [ # # ]: 0 : return new_create;
3308 : 0 : }
3309 : :
3310 : : static bool
3311 : 109059 : nvmf_rdma_retry_listen_port(struct spdk_nvmf_rdma_transport *rtransport)
3312 : : {
3313 : : struct spdk_nvmf_rdma_port *port, *tmp_port;
3314 : 109059 : int rc = 0;
3315 : 109059 : bool new_create = false;
3316 : :
3317 [ + - # # : 109059 : if (TAILQ_EMPTY(&rtransport->retry_ports)) {
# # # # ]
3318 : 109059 : return false;
3319 : : }
3320 : :
3321 : 0 : new_create = nvmf_rdma_rescan_devices(rtransport);
3322 : :
3323 [ # # # # : 0 : TAILQ_FOREACH_SAFE(port, &rtransport->retry_ports, link, tmp_port) {
# # # # #
# # # # #
# # ]
3324 [ # # # # : 0 : rc = nvmf_rdma_listen(&rtransport->transport, port->trid, NULL);
# # ]
3325 : :
3326 [ # # # # : 0 : TAILQ_REMOVE(&rtransport->retry_ports, port, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
3327 [ # # ]: 0 : if (rc) {
3328 [ # # # # ]: 0 : if (new_create) {
3329 [ # # # # : 0 : SPDK_ERRLOG("Found new IB device but port %s:%s is still failed(%d) to listen.\n",
# # # # #
# # # ]
3330 : : port->trid->traddr, port->trid->trsvcid, rc);
3331 : 0 : }
3332 [ # # # # : 0 : TAILQ_INSERT_TAIL(&rtransport->retry_ports, port, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
3333 : 0 : break;
3334 : : } else {
3335 [ # # # # : 0 : SPDK_NOTICELOG("Port %s:%s come back\n", port->trid->traddr, port->trid->trsvcid);
# # # # #
# # # ]
3336 : 0 : free(port);
3337 : : }
3338 : 0 : }
3339 : :
3340 : 0 : return true;
3341 : 0 : }
3342 : :
3343 : : static void
3344 : 17416357 : nvmf_rdma_qpair_process_pending(struct spdk_nvmf_rdma_transport *rtransport,
3345 : : struct spdk_nvmf_rdma_qpair *rqpair, bool drain)
3346 : : {
3347 : : struct spdk_nvmf_request *req, *tmp;
3348 : : struct spdk_nvmf_rdma_request *rdma_req, *req_tmp;
3349 : : struct spdk_nvmf_rdma_resources *resources;
3350 : :
3351 : : /* First process requests which are waiting for response to be sent */
3352 [ + + # # : 17416421 : STAILQ_FOREACH_SAFE(rdma_req, &rqpair->pending_rdma_send_queue, state_link, req_tmp) {
# # # # #
# # # # #
# # ]
3353 [ + + + - : 81 : if (nvmf_rdma_request_process(rtransport, rdma_req) == false && drain == false) {
# # ]
3354 : 17 : break;
3355 : : }
3356 : 0 : }
3357 : :
3358 : : /* We process I/O in the data transfer pending queue at the highest priority. */
3359 [ + + # # : 19065900 : STAILQ_FOREACH_SAFE(rdma_req, &rqpair->pending_rdma_read_queue, state_link, req_tmp) {
# # # # #
# # # # #
# # ]
3360 [ + + # # : 4302996 : if (rdma_req->state != RDMA_REQUEST_STATE_DATA_TRANSFER_TO_CONTROLLER_PENDING) {
# # ]
3361 : : /* Requests in this queue might be in state RDMA_REQUEST_STATE_TRANSFERRING_HOST_TO_CONTROLLER,
3362 : : * they are transmitting data over network but we keep them in the list to guarantee
3363 : : * fair processing. */
3364 : 1183210 : continue;
3365 : : }
3366 [ + + + - : 3119786 : if (nvmf_rdma_request_process(rtransport, rdma_req) == false && drain == false) {
# # ]
3367 : 2653453 : break;
3368 : : }
3369 : 0 : }
3370 : :
3371 : : /* Then RDMA writes since reads have stronger restrictions than writes */
3372 [ + + # # : 17420944 : STAILQ_FOREACH_SAFE(rdma_req, &rqpair->pending_rdma_write_queue, state_link, req_tmp) {
# # # # #
# # # # #
# # ]
3373 [ + + + - : 13975 : if (nvmf_rdma_request_process(rtransport, rdma_req) == false && drain == false) {
# # ]
3374 : 9388 : break;
3375 : : }
3376 : 0 : }
3377 : :
3378 : : /* Then we handle request waiting on memory buffers. */
3379 [ + + # # : 18434164 : STAILQ_FOREACH_SAFE(req, &rqpair->poller->group->group.pending_buf_queue, buf_link, tmp) {
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
3380 : 4019745 : rdma_req = SPDK_CONTAINEROF(req, struct spdk_nvmf_rdma_request, req);
3381 [ + + + + : 4019745 : if (nvmf_rdma_request_process(rtransport, rdma_req) == false && drain == false) {
# # ]
3382 : 3001938 : break;
3383 : : }
3384 : 0 : }
3385 : :
3386 [ # # # # ]: 17416357 : resources = rqpair->resources;
3387 [ + + + + : 25214396 : while (!STAILQ_EMPTY(&resources->free_queue) && !STAILQ_EMPTY(&resources->incoming_queue)) {
# # # # #
# # # # #
# # ]
3388 [ # # # # : 7798039 : rdma_req = STAILQ_FIRST(&resources->free_queue);
# # ]
3389 [ + + # # : 7798039 : STAILQ_REMOVE_HEAD(&resources->free_queue, state_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
3390 [ # # # # : 7798039 : rdma_req->recv = STAILQ_FIRST(&resources->incoming_queue);
# # # # #
# ]
3391 [ + + # # : 7798039 : STAILQ_REMOVE_HEAD(&resources->incoming_queue, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
3392 : :
3393 [ + - # # : 7798039 : if (rqpair->srq != NULL) {
# # ]
3394 [ # # # # : 7798039 : rdma_req->req.qpair = &rdma_req->recv->qpair->qpair;
# # # # #
# # # # #
# # ]
3395 [ # # # # : 7798039 : rdma_req->recv->qpair->qd++;
# # # # #
# ]
3396 : 0 : } else {
3397 [ # # ]: 0 : rqpair->qd++;
3398 : : }
3399 : :
3400 [ # # # # : 7798039 : rdma_req->receive_tsc = rdma_req->recv->receive_tsc;
# # # # #
# # # ]
3401 [ # # # # ]: 7798039 : rdma_req->state = RDMA_REQUEST_STATE_NEW;
3402 [ - + ]: 7798039 : if (nvmf_rdma_request_process(rtransport, rdma_req) == false) {
3403 : 0 : break;
3404 : : }
3405 : : }
3406 [ + + + - : 17416357 : if (!STAILQ_EMPTY(&resources->incoming_queue) && STAILQ_EMPTY(&resources->free_queue)) {
# # # # #
# # # # #
# # ]
3407 [ # # # # : 204 : rqpair->poller->stat.pending_free_request++;
# # # # ]
3408 : 0 : }
3409 : 17416357 : }
3410 : :
3411 : : static void
3412 : 866474474 : nvmf_rdma_poller_process_pending_buf_queue(struct spdk_nvmf_rdma_transport *rtransport,
3413 : : struct spdk_nvmf_rdma_poller *rpoller)
3414 : : {
3415 : : struct spdk_nvmf_request *req, *tmp;
3416 : : struct spdk_nvmf_rdma_request *rdma_req;
3417 : :
3418 [ + + # # : 866474474 : STAILQ_FOREACH_SAFE(req, &rpoller->group->group.pending_buf_queue, buf_link, tmp) {
# # # # #
# # # # #
# # # # #
# # # ]
3419 : 104123 : rdma_req = SPDK_CONTAINEROF(req, struct spdk_nvmf_rdma_request, req);
3420 [ + - ]: 104123 : if (nvmf_rdma_request_process(rtransport, rdma_req) == false) {
3421 : 104123 : break;
3422 : : }
3423 : 0 : }
3424 : 866474474 : }
3425 : :
3426 : : static inline bool
3427 : 2601 : nvmf_rdma_can_ignore_last_wqe_reached(struct spdk_nvmf_rdma_device *device)
3428 : : {
3429 : : /* iWARP transport and SoftRoCE driver don't support LAST_WQE_REACHED ibv async event */
3430 [ + - ]: 5202 : return nvmf_rdma_is_rxe_device(device) ||
3431 [ - + # # : 2601 : device->context->device->transport_type == IBV_TRANSPORT_IWARP;
# # # # #
# # # ]
3432 : : }
3433 : :
3434 : : static void
3435 : 5823 : nvmf_rdma_destroy_drained_qpair(struct spdk_nvmf_rdma_qpair *rqpair)
3436 : : {
3437 [ # # # # : 5823 : struct spdk_nvmf_rdma_transport *rtransport = SPDK_CONTAINEROF(rqpair->qpair.transport,
# # ]
3438 : : struct spdk_nvmf_rdma_transport, transport);
3439 : :
3440 : 5823 : nvmf_rdma_qpair_process_pending(rtransport, rqpair, true);
3441 : :
3442 : : /* nvmf_rdma_close_qpair is not called */
3443 [ - + + + : 5823 : if (!rqpair->to_close) {
# # # # ]
3444 : 54 : return;
3445 : : }
3446 : :
3447 : : /* device is already destroyed and we should force destroy this qpair. */
3448 [ + - - + : 5769 : if (rqpair->poller && rqpair->poller->need_destroy) {
- + # # #
# # # # #
# # # # ]
3449 : 0 : nvmf_rdma_qpair_destroy(rqpair);
3450 : 0 : return;
3451 : : }
3452 : :
3453 : : /* In non SRQ path, we will reach rqpair->max_queue_depth. In SRQ path, we will get the last_wqe event. */
3454 [ + + # # : 5769 : if (rqpair->current_send_depth != 0) {
# # ]
3455 : 715 : return;
3456 : : }
3457 : :
3458 [ - + - - : 5054 : if (rqpair->srq == NULL && rqpair->current_recv_depth != rqpair->max_queue_depth) {
# # # # #
# # # # #
# # ]
3459 : 0 : return;
3460 : : }
3461 : :
3462 [ + - - + : 5054 : if (rqpair->srq != NULL && rqpair->last_wqe_reached == false &&
+ + # # #
# # # # #
# # ]
3463 [ + - # # ]: 2601 : !nvmf_rdma_can_ignore_last_wqe_reached(rqpair->device)) {
3464 : 2601 : return;
3465 : : }
3466 : :
3467 [ - + # # : 2453 : assert(rqpair->qpair.state == SPDK_NVMF_QPAIR_ERROR);
# # # # #
# ]
3468 : :
3469 : 2453 : nvmf_rdma_qpair_destroy(rqpair);
3470 : 0 : }
3471 : :
3472 : : static int
3473 : 2375 : nvmf_rdma_disconnect(struct rdma_cm_event *evt, bool *event_acked)
3474 : : {
3475 : : struct spdk_nvmf_qpair *qpair;
3476 : : struct spdk_nvmf_rdma_qpair *rqpair;
3477 : :
3478 [ - + # # : 2375 : if (evt->id == NULL) {
# # ]
3479 : 0 : SPDK_ERRLOG("disconnect request: missing cm_id\n");
3480 : 0 : return -1;
3481 : : }
3482 : :
3483 [ # # # # : 2375 : qpair = evt->id->context;
# # # # ]
3484 [ - + ]: 2375 : if (qpair == NULL) {
3485 : 0 : SPDK_ERRLOG("disconnect request: no active connection\n");
3486 : 0 : return -1;
3487 : : }
3488 : :
3489 : 2375 : rdma_ack_cm_event(evt);
3490 [ # # ]: 2375 : *event_acked = true;
3491 : :
3492 : 2375 : rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
3493 : :
3494 [ + + + - : 2375 : spdk_trace_record(TRACE_RDMA_QP_DISCONNECT, 0, 0, (uintptr_t)rqpair);
# # # # #
# # # # #
# # ]
3495 : :
3496 [ # # ]: 2375 : spdk_nvmf_qpair_disconnect(&rqpair->qpair);
3497 : :
3498 : 2375 : return 0;
3499 : 0 : }
3500 : :
3501 : : #ifdef DEBUG
3502 : : static const char *CM_EVENT_STR[] = {
3503 : : "RDMA_CM_EVENT_ADDR_RESOLVED",
3504 : : "RDMA_CM_EVENT_ADDR_ERROR",
3505 : : "RDMA_CM_EVENT_ROUTE_RESOLVED",
3506 : : "RDMA_CM_EVENT_ROUTE_ERROR",
3507 : : "RDMA_CM_EVENT_CONNECT_REQUEST",
3508 : : "RDMA_CM_EVENT_CONNECT_RESPONSE",
3509 : : "RDMA_CM_EVENT_CONNECT_ERROR",
3510 : : "RDMA_CM_EVENT_UNREACHABLE",
3511 : : "RDMA_CM_EVENT_REJECTED",
3512 : : "RDMA_CM_EVENT_ESTABLISHED",
3513 : : "RDMA_CM_EVENT_DISCONNECTED",
3514 : : "RDMA_CM_EVENT_DEVICE_REMOVAL",
3515 : : "RDMA_CM_EVENT_MULTICAST_JOIN",
3516 : : "RDMA_CM_EVENT_MULTICAST_ERROR",
3517 : : "RDMA_CM_EVENT_ADDR_CHANGE",
3518 : : "RDMA_CM_EVENT_TIMEWAIT_EXIT"
3519 : : };
3520 : : #endif /* DEBUG */
3521 : :
3522 : : static void
3523 : 0 : nvmf_rdma_disconnect_qpairs_on_port(struct spdk_nvmf_rdma_transport *rtransport,
3524 : : struct spdk_nvmf_rdma_port *port)
3525 : : {
3526 : : struct spdk_nvmf_rdma_poll_group *rgroup;
3527 : : struct spdk_nvmf_rdma_poller *rpoller;
3528 : : struct spdk_nvmf_rdma_qpair *rqpair;
3529 : :
3530 [ # # # # : 0 : TAILQ_FOREACH(rgroup, &rtransport->poll_groups, link) {
# # # # #
# # # #
# ]
3531 [ # # # # : 0 : TAILQ_FOREACH(rpoller, &rgroup->pollers, link) {
# # # # #
# # # #
# ]
3532 [ # # # # ]: 0 : RB_FOREACH(rqpair, qpairs_tree, &rpoller->qpairs) {
3533 [ # # # # : 0 : if (rqpair->listen_id == port->id) {
# # # # #
# ]
3534 [ # # ]: 0 : spdk_nvmf_qpair_disconnect(&rqpair->qpair);
3535 : 0 : }
3536 : 0 : }
3537 : 0 : }
3538 : 0 : }
3539 : 0 : }
3540 : :
3541 : : static bool
3542 : 0 : nvmf_rdma_handle_cm_event_addr_change(struct spdk_nvmf_transport *transport,
3543 : : struct rdma_cm_event *event)
3544 : : {
3545 : : const struct spdk_nvme_transport_id *trid;
3546 : : struct spdk_nvmf_rdma_port *port;
3547 : : struct spdk_nvmf_rdma_transport *rtransport;
3548 : 0 : bool event_acked = false;
3549 : :
3550 : 0 : rtransport = SPDK_CONTAINEROF(transport, struct spdk_nvmf_rdma_transport, transport);
3551 [ # # # # : 0 : TAILQ_FOREACH(port, &rtransport->ports, link) {
# # # # #
# # # #
# ]
3552 [ # # # # : 0 : if (port->id == event->id) {
# # # # #
# ]
3553 [ # # # # : 0 : SPDK_ERRLOG("ADDR_CHANGE: IP %s:%s migrated\n", port->trid->traddr, port->trid->trsvcid);
# # # # #
# # # ]
3554 : 0 : rdma_ack_cm_event(event);
3555 : 0 : event_acked = true;
3556 [ # # # # ]: 0 : trid = port->trid;
3557 : 0 : break;
3558 : : }
3559 : 0 : }
3560 : :
3561 [ # # # # ]: 0 : if (event_acked) {
3562 : 0 : nvmf_rdma_disconnect_qpairs_on_port(rtransport, port);
3563 : :
3564 : 0 : nvmf_rdma_stop_listen(transport, trid);
3565 : 0 : nvmf_rdma_listen(transport, trid, NULL);
3566 : 0 : }
3567 : :
3568 [ # # ]: 0 : return event_acked;
3569 : : }
3570 : :
3571 : : static void
3572 : 0 : nvmf_rdma_handle_device_removal(struct spdk_nvmf_rdma_transport *rtransport,
3573 : : struct spdk_nvmf_rdma_device *device)
3574 : : {
3575 : : struct spdk_nvmf_rdma_port *port, *port_tmp;
3576 : : int rc;
3577 : 0 : bool has_inflight;
3578 : :
3579 : 0 : rc = nvmf_rdma_manage_poller(rtransport, device, &has_inflight, false);
3580 [ # # ]: 0 : if (rc) {
3581 : 0 : SPDK_ERRLOG("Failed to handle device removal, rc %d\n", rc);
3582 : 0 : return;
3583 : : }
3584 : :
3585 [ # # # # ]: 0 : if (!has_inflight) {
3586 : : /* no pollers, destroy the device */
3587 [ # # # # ]: 0 : device->ready_to_destroy = true;
3588 : 0 : spdk_thread_send_msg(spdk_get_thread(), _nvmf_rdma_remove_destroyed_device, rtransport);
3589 : 0 : }
3590 : :
3591 [ # # # # : 0 : TAILQ_FOREACH_SAFE(port, &rtransport->ports, link, port_tmp) {
# # # # #
# # # # #
# # ]
3592 [ # # # # : 0 : if (port->device == device) {
# # ]
3593 [ # # # # : 0 : SPDK_NOTICELOG("Port %s:%s on device %s is being removed.\n",
# # # # #
# # # # #
# # # # #
# # # #
# ]
3594 : : port->trid->traddr,
3595 : : port->trid->trsvcid,
3596 : : ibv_get_device_name(port->device->context->device));
3597 : :
3598 : : /* keep NVMF listener and only destroy structures of the
3599 : : * RDMA transport. when the device comes back we can retry listening
3600 : : * and the application's workflow will not be interrupted.
3601 : : */
3602 [ # # # # : 0 : nvmf_rdma_stop_listen_ex(&rtransport->transport, port->trid, true);
# # ]
3603 : 0 : }
3604 : 0 : }
3605 : 0 : }
3606 : :
3607 : : static void
3608 : 0 : nvmf_rdma_handle_cm_event_port_removal(struct spdk_nvmf_transport *transport,
3609 : : struct rdma_cm_event *event)
3610 : : {
3611 : : struct spdk_nvmf_rdma_port *port, *tmp_port;
3612 : : struct spdk_nvmf_rdma_transport *rtransport;
3613 : :
3614 [ # # # # : 0 : port = event->id->context;
# # # # ]
3615 : 0 : rtransport = SPDK_CONTAINEROF(transport, struct spdk_nvmf_rdma_transport, transport);
3616 : :
3617 : 0 : rdma_ack_cm_event(event);
3618 : :
3619 : : /* if device removal happens during ctrl qpair disconnecting, it's possible that we receive
3620 : : * an DEVICE_REMOVAL event on qpair but the id->qp is just NULL. So we should make sure that
3621 : : * we are handling a port event here.
3622 : : */
3623 [ # # # # : 0 : TAILQ_FOREACH(tmp_port, &rtransport->ports, link) {
# # # # #
# # # #
# ]
3624 [ # # # # : 0 : if (port == tmp_port && port->device && !port->device->need_destroy) {
# # # # #
# # # # #
# # # # #
# ]
3625 [ # # # # : 0 : port->device->need_destroy = true;
# # # # ]
3626 [ # # # # ]: 0 : nvmf_rdma_handle_device_removal(rtransport, port->device);
3627 : 0 : }
3628 : 0 : }
3629 : 0 : }
3630 : :
3631 : : static void
3632 : 5645 : nvmf_process_cm_events(struct spdk_nvmf_transport *transport, uint32_t max_events)
3633 : : {
3634 : : struct spdk_nvmf_rdma_transport *rtransport;
3635 : 0 : struct rdma_cm_event *event;
3636 : : uint32_t i;
3637 : : int rc;
3638 : 0 : bool event_acked;
3639 : :
3640 : 5645 : rtransport = SPDK_CONTAINEROF(transport, struct spdk_nvmf_rdma_transport, transport);
3641 : :
3642 [ - + # # : 5645 : if (rtransport->event_channel == NULL) {
# # ]
3643 : 0 : return;
3644 : : }
3645 : :
3646 [ + - ]: 12926 : for (i = 0; i < max_events; i++) {
3647 : 12926 : event_acked = false;
3648 [ # # # # ]: 12926 : rc = rdma_get_cm_event(rtransport->event_channel, &event);
3649 [ + + ]: 12926 : if (rc) {
3650 [ - + - - : 5645 : if (errno != EAGAIN && errno != EWOULDBLOCK) {
# # # # ]
3651 [ # # ]: 0 : SPDK_ERRLOG("Acceptor Event Error: %s\n", spdk_strerror(errno));
3652 : 0 : }
3653 : 5645 : break;
3654 : : }
3655 : :
3656 [ - + - + : 7281 : SPDK_DEBUGLOG(rdma, "Acceptor Event: %s\n", CM_EVENT_STR[event->event]);
# # # # #
# # # # #
# # ]
3657 : :
3658 [ + + + - : 7281 : spdk_trace_record(TRACE_RDMA_CM_ASYNC_EVENT, 0, 0, 0, event->event);
# # # # #
# # # # #
# # # # #
# ]
3659 : :
3660 [ - + - - : 7281 : switch (event->event) {
- + + - -
- - - # #
# # ]
3661 : 0 : case RDMA_CM_EVENT_ADDR_RESOLVED:
3662 : : case RDMA_CM_EVENT_ADDR_ERROR:
3663 : : case RDMA_CM_EVENT_ROUTE_RESOLVED:
3664 : : case RDMA_CM_EVENT_ROUTE_ERROR:
3665 : : /* No action required. The target never attempts to resolve routes. */
3666 : 0 : break;
3667 : 2453 : case RDMA_CM_EVENT_CONNECT_REQUEST:
3668 : 2453 : rc = nvmf_rdma_connect(transport, event);
3669 [ - + ]: 2453 : if (rc < 0) {
3670 : 0 : SPDK_ERRLOG("Unable to process connect event. rc: %d\n", rc);
3671 : 0 : break;
3672 : : }
3673 : 2453 : break;
3674 : 0 : case RDMA_CM_EVENT_CONNECT_RESPONSE:
3675 : : /* The target never initiates a new connection. So this will not occur. */
3676 : 0 : break;
3677 : 0 : case RDMA_CM_EVENT_CONNECT_ERROR:
3678 : : /* Can this happen? The docs say it can, but not sure what causes it. */
3679 : 0 : break;
3680 : 0 : case RDMA_CM_EVENT_UNREACHABLE:
3681 : : case RDMA_CM_EVENT_REJECTED:
3682 : : /* These only occur on the client side. */
3683 : 0 : break;
3684 : 2453 : case RDMA_CM_EVENT_ESTABLISHED:
3685 : : /* TODO: Should we be waiting for this event anywhere? */
3686 : 2453 : break;
3687 : 2375 : case RDMA_CM_EVENT_DISCONNECTED:
3688 : 2375 : rc = nvmf_rdma_disconnect(event, &event_acked);
3689 [ - + ]: 2375 : if (rc < 0) {
3690 : 0 : SPDK_ERRLOG("Unable to process disconnect event. rc: %d\n", rc);
3691 : 0 : break;
3692 : : }
3693 : 2375 : break;
3694 : 0 : case RDMA_CM_EVENT_DEVICE_REMOVAL:
3695 : : /* In case of device removal, kernel IB part triggers IBV_EVENT_DEVICE_FATAL
3696 : : * which triggers RDMA_CM_EVENT_DEVICE_REMOVAL on all cma_id’s.
3697 : : * Once these events are sent to SPDK, we should release all IB resources and
3698 : : * don't make attempts to call any ibv_query/modify/create functions. We can only call
3699 : : * ibv_destroy* functions to release user space memory allocated by IB. All kernel
3700 : : * resources are already cleaned. */
3701 [ # # # # : 0 : if (event->id->qp) {
# # # # #
# ]
3702 : : /* If rdma_cm event has a valid `qp` pointer then the event refers to the
3703 : : * corresponding qpair. Otherwise the event refers to a listening device. */
3704 : 0 : rc = nvmf_rdma_disconnect(event, &event_acked);
3705 [ # # ]: 0 : if (rc < 0) {
3706 : 0 : SPDK_ERRLOG("Unable to process disconnect event. rc: %d\n", rc);
3707 : 0 : break;
3708 : : }
3709 : 0 : } else {
3710 : 0 : nvmf_rdma_handle_cm_event_port_removal(transport, event);
3711 : 0 : event_acked = true;
3712 : : }
3713 : 0 : break;
3714 : 0 : case RDMA_CM_EVENT_MULTICAST_JOIN:
3715 : : case RDMA_CM_EVENT_MULTICAST_ERROR:
3716 : : /* Multicast is not used */
3717 : 0 : break;
3718 : 0 : case RDMA_CM_EVENT_ADDR_CHANGE:
3719 : 0 : event_acked = nvmf_rdma_handle_cm_event_addr_change(transport, event);
3720 : 0 : break;
3721 : 0 : case RDMA_CM_EVENT_TIMEWAIT_EXIT:
3722 : : /* For now, do nothing. The target never re-uses queue pairs. */
3723 : 0 : break;
3724 : 0 : default:
3725 [ # # # # ]: 0 : SPDK_ERRLOG("Unexpected Acceptor Event [%d]\n", event->event);
3726 : 0 : break;
3727 : : }
3728 [ - + + + ]: 7281 : if (!event_acked) {
3729 : 4906 : rdma_ack_cm_event(event);
3730 : 0 : }
3731 : 0 : }
3732 : 0 : }
3733 : :
3734 : : static void
3735 : 2453 : nvmf_rdma_handle_last_wqe_reached(struct spdk_nvmf_rdma_qpair *rqpair)
3736 : : {
3737 [ # # # # ]: 2453 : rqpair->last_wqe_reached = true;
3738 : 2453 : nvmf_rdma_destroy_drained_qpair(rqpair);
3739 : 2453 : }
3740 : :
3741 : : static void
3742 : 2453 : nvmf_rdma_qpair_process_ibv_event(void *ctx)
3743 : : {
3744 : 2453 : struct spdk_nvmf_rdma_ibv_event_ctx *event_ctx = ctx;
3745 : :
3746 [ + - # # : 2453 : if (event_ctx->rqpair) {
# # ]
3747 [ + - + - : 2453 : STAILQ_REMOVE(&event_ctx->rqpair->ibv_events, event_ctx, spdk_nvmf_rdma_ibv_event_ctx, link);
- - - - #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
3748 [ + - # # : 2453 : if (event_ctx->cb_fn) {
# # ]
3749 [ # # # # : 2453 : event_ctx->cb_fn(event_ctx->rqpair);
# # # # #
# # # ]
3750 : 0 : }
3751 : 0 : }
3752 : 2453 : free(event_ctx);
3753 : 2453 : }
3754 : :
3755 : : static int
3756 : 2453 : nvmf_rdma_send_qpair_async_event(struct spdk_nvmf_rdma_qpair *rqpair,
3757 : : spdk_nvmf_rdma_qpair_ibv_event fn)
3758 : : {
3759 : : struct spdk_nvmf_rdma_ibv_event_ctx *ctx;
3760 : 2453 : struct spdk_thread *thr = NULL;
3761 : : int rc;
3762 : :
3763 [ - + # # : 2453 : if (rqpair->qpair.group) {
# # # # ]
3764 [ # # # # : 0 : thr = rqpair->qpair.group->thread;
# # # # #
# ]
3765 [ + - # # : 2453 : } else if (rqpair->destruct_channel) {
# # ]
3766 [ # # # # ]: 2453 : thr = spdk_io_channel_get_thread(rqpair->destruct_channel);
3767 : 0 : }
3768 : :
3769 [ - + ]: 2453 : if (!thr) {
3770 [ # # # # : 0 : SPDK_DEBUGLOG(rdma, "rqpair %p has no thread\n", rqpair);
# # ]
3771 : 0 : return -EINVAL;
3772 : : }
3773 : :
3774 : 2453 : ctx = calloc(1, sizeof(*ctx));
3775 [ - + ]: 2453 : if (!ctx) {
3776 : 0 : return -ENOMEM;
3777 : : }
3778 : :
3779 [ # # # # ]: 2453 : ctx->rqpair = rqpair;
3780 [ # # # # ]: 2453 : ctx->cb_fn = fn;
3781 [ # # # # : 2453 : STAILQ_INSERT_TAIL(&rqpair->ibv_events, ctx, link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
3782 : :
3783 : 2453 : rc = spdk_thread_send_msg(thr, nvmf_rdma_qpair_process_ibv_event, ctx);
3784 [ - + ]: 2453 : if (rc) {
3785 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->ibv_events, ctx, spdk_nvmf_rdma_ibv_event_ctx, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
3786 : 0 : free(ctx);
3787 : 0 : }
3788 : :
3789 : 2453 : return rc;
3790 : 0 : }
3791 : :
3792 : : static int
3793 : 3787 : nvmf_process_ib_event(struct spdk_nvmf_rdma_device *device)
3794 : : {
3795 : : int rc;
3796 : 3787 : struct spdk_nvmf_rdma_qpair *rqpair = NULL;
3797 : 0 : struct ibv_async_event event;
3798 : :
3799 [ # # # # ]: 3787 : rc = ibv_get_async_event(device->context, &event);
3800 : :
3801 [ + + ]: 3787 : if (rc) {
3802 : : /* In non-blocking mode -1 means there are no events available */
3803 : 1334 : return rc;
3804 : : }
3805 : :
3806 [ + - - # : 2453 : switch (event.event_type) {
# # ]
3807 : 2453 : case IBV_EVENT_QP_FATAL:
3808 : : case IBV_EVENT_QP_LAST_WQE_REACHED:
3809 : : case IBV_EVENT_QP_REQ_ERR:
3810 : : case IBV_EVENT_QP_ACCESS_ERR:
3811 : : case IBV_EVENT_COMM_EST:
3812 : : case IBV_EVENT_PATH_MIG:
3813 : : case IBV_EVENT_PATH_MIG_ERR:
3814 [ # # # # ]: 2453 : rqpair = event.element.qp->qp_context;
3815 [ - + ]: 2453 : if (!rqpair) {
3816 : : /* Any QP event for NVMe-RDMA initiator may be returned. */
3817 [ # # ]: 0 : SPDK_NOTICELOG("Async QP event for unknown QP: %s\n",
3818 : : ibv_event_type_str(event.event_type));
3819 : 0 : break;
3820 : : }
3821 : :
3822 [ - + - - : 2453 : switch (event.event_type) {
# # ]
3823 : 0 : case IBV_EVENT_QP_FATAL:
3824 : 0 : SPDK_ERRLOG("Fatal event received for rqpair %p\n", rqpair);
3825 [ # # # # : 0 : spdk_trace_record(TRACE_RDMA_IBV_ASYNC_EVENT, 0, 0,
# # # # #
# # # # #
# # # # ]
3826 : : (uintptr_t)rqpair, event.event_type);
3827 [ # # # # ]: 0 : rqpair->ibv_in_error_state = true;
3828 [ # # ]: 0 : spdk_nvmf_qpair_disconnect(&rqpair->qpair);
3829 : 0 : break;
3830 : 2453 : case IBV_EVENT_QP_LAST_WQE_REACHED:
3831 : : /* This event only occurs for shared receive queues. */
3832 [ - + - + : 2453 : SPDK_DEBUGLOG(rdma, "Last WQE reached event received for rqpair %p\n", rqpair);
# # ]
3833 : 2453 : rc = nvmf_rdma_send_qpair_async_event(rqpair, nvmf_rdma_handle_last_wqe_reached);
3834 [ - + ]: 2453 : if (rc) {
3835 : 0 : SPDK_WARNLOG("Failed to send LAST_WQE_REACHED event. rqpair %p, err %d\n", rqpair, rc);
3836 [ # # # # ]: 0 : rqpair->last_wqe_reached = true;
3837 : 0 : }
3838 : 2453 : break;
3839 : 0 : case IBV_EVENT_QP_REQ_ERR:
3840 : : case IBV_EVENT_QP_ACCESS_ERR:
3841 : : case IBV_EVENT_COMM_EST:
3842 : : case IBV_EVENT_PATH_MIG:
3843 : : case IBV_EVENT_PATH_MIG_ERR:
3844 [ # # ]: 0 : SPDK_NOTICELOG("Async QP event: %s\n",
3845 : : ibv_event_type_str(event.event_type));
3846 [ # # # # : 0 : spdk_trace_record(TRACE_RDMA_IBV_ASYNC_EVENT, 0, 0,
# # # # #
# # # # #
# # # # ]
3847 : : (uintptr_t)rqpair, event.event_type);
3848 [ # # # # ]: 0 : rqpair->ibv_in_error_state = true;
3849 : 0 : break;
3850 : 0 : default:
3851 : 0 : break;
3852 : : }
3853 : 2453 : break;
3854 : 0 : case IBV_EVENT_DEVICE_FATAL:
3855 [ # # # # : 0 : SPDK_ERRLOG("Device Fatal event[%s] received on %s. device: %p\n",
# # # # #
# ]
3856 : : ibv_event_type_str(event.event_type), ibv_get_device_name(device->context->device), device);
3857 [ # # # # ]: 0 : device->need_destroy = true;
3858 : 0 : break;
3859 : 0 : case IBV_EVENT_CQ_ERR:
3860 : : case IBV_EVENT_PORT_ACTIVE:
3861 : : case IBV_EVENT_PORT_ERR:
3862 : : case IBV_EVENT_LID_CHANGE:
3863 : : case IBV_EVENT_PKEY_CHANGE:
3864 : : case IBV_EVENT_SM_CHANGE:
3865 : : case IBV_EVENT_SRQ_ERR:
3866 : : case IBV_EVENT_SRQ_LIMIT_REACHED:
3867 : : case IBV_EVENT_CLIENT_REREGISTER:
3868 : : case IBV_EVENT_GID_CHANGE:
3869 : 0 : case IBV_EVENT_SQ_DRAINED:
3870 : : default:
3871 [ # # ]: 0 : SPDK_NOTICELOG("Async event: %s\n",
3872 : : ibv_event_type_str(event.event_type));
3873 [ # # # # : 0 : spdk_trace_record(TRACE_RDMA_IBV_ASYNC_EVENT, 0, 0, 0, event.event_type);
# # # # #
# # # # #
# # # # ]
3874 : 0 : break;
3875 : : }
3876 : 2453 : ibv_ack_async_event(&event);
3877 : :
3878 : 2453 : return 0;
3879 : 0 : }
3880 : :
3881 : : static void
3882 : 1334 : nvmf_process_ib_events(struct spdk_nvmf_rdma_device *device, uint32_t max_events)
3883 : : {
3884 : 1334 : int rc = 0;
3885 : 1334 : uint32_t i = 0;
3886 : :
3887 [ + - ]: 3787 : for (i = 0; i < max_events; i++) {
3888 : 3787 : rc = nvmf_process_ib_event(device);
3889 [ + + ]: 3787 : if (rc) {
3890 : 1334 : break;
3891 : : }
3892 : 0 : }
3893 : :
3894 [ - + - + : 1334 : SPDK_DEBUGLOG(rdma, "Device %s: %u events processed\n", device->context->device->name, i);
# # # # #
# # # # #
# # ]
3895 : 1334 : }
3896 : :
3897 : : static int
3898 : 109059 : nvmf_rdma_accept(void *ctx)
3899 : : {
3900 : 109059 : int nfds, i = 0;
3901 : 109059 : struct spdk_nvmf_transport *transport = ctx;
3902 : : struct spdk_nvmf_rdma_transport *rtransport;
3903 : : struct spdk_nvmf_rdma_device *device, *tmp;
3904 : : uint32_t count;
3905 : : short revents;
3906 : : bool do_retry;
3907 : :
3908 : 109059 : rtransport = SPDK_CONTAINEROF(transport, struct spdk_nvmf_rdma_transport, transport);
3909 : 109059 : do_retry = nvmf_rdma_retry_listen_port(rtransport);
3910 : :
3911 [ # # # # : 109059 : count = nfds = poll(rtransport->poll_fds, rtransport->npoll_fds, 0);
# # # # ]
3912 : :
3913 [ + + ]: 109059 : if (nfds <= 0) {
3914 [ # # ]: 102674 : return do_retry ? SPDK_POLLER_BUSY : SPDK_POLLER_IDLE;
3915 : : }
3916 : :
3917 : : /* The first poll descriptor is RDMA CM event */
3918 [ + + # # : 6385 : if (rtransport->poll_fds[i++].revents & POLLIN) {
# # # # #
# # # #
# ]
3919 : 5645 : nvmf_process_cm_events(transport, NVMF_RDMA_MAX_EVENTS_PER_POLL);
3920 [ # # ]: 5645 : nfds--;
3921 : 0 : }
3922 : :
3923 [ + + ]: 6385 : if (nfds == 0) {
3924 : 5051 : return SPDK_POLLER_BUSY;
3925 : : }
3926 : :
3927 : : /* Second and subsequent poll descriptors are IB async events */
3928 [ + + # # : 4002 : TAILQ_FOREACH_SAFE(device, &rtransport->devices, link, tmp) {
# # # # #
# # # # #
# # ]
3929 [ # # # # : 2668 : revents = rtransport->poll_fds[i++].revents;
# # # # #
# # # ]
3930 [ + + ]: 2668 : if (revents & POLLIN) {
3931 [ - + + - : 1334 : if (spdk_likely(!device->need_destroy)) {
# # # # ]
3932 : 1334 : nvmf_process_ib_events(device, NVMF_RDMA_MAX_EVENTS_PER_POLL);
3933 [ - + - + : 1334 : if (spdk_unlikely(device->need_destroy)) {
# # # # ]
3934 : 0 : nvmf_rdma_handle_device_removal(rtransport, device);
3935 : 0 : }
3936 : 0 : }
3937 [ # # ]: 1334 : nfds--;
3938 [ + - - + ]: 1334 : } else if (revents & POLLNVAL || revents & POLLHUP) {
3939 : 0 : SPDK_ERRLOG("Receive unknown revent %x on device %p\n", (int)revents, device);
3940 [ # # ]: 0 : nfds--;
3941 : 0 : }
3942 : 0 : }
3943 : : /* check all flagged fd's have been served */
3944 [ - + # # ]: 1334 : assert(nfds == 0);
3945 : :
3946 : 1334 : return count > 0 ? SPDK_POLLER_BUSY : SPDK_POLLER_IDLE;
3947 : 0 : }
3948 : :
3949 : : static void
3950 : 512 : nvmf_rdma_cdata_init(struct spdk_nvmf_transport *transport, struct spdk_nvmf_subsystem *subsystem,
3951 : : struct spdk_nvmf_ctrlr_data *cdata)
3952 : : {
3953 [ # # # # : 512 : cdata->nvmf_specific.msdbd = NVMF_DEFAULT_MSDBD;
# # ]
3954 : :
3955 : : /* Disable in-capsule data transfer for RDMA controller when dif_insert_or_strip is enabled
3956 : : since in-capsule data only works with NVME drives that support SGL memory layout */
3957 [ - + - + : 512 : if (transport->opts.dif_insert_or_strip) {
# # # # #
# ]
3958 [ # # # # : 0 : cdata->nvmf_specific.ioccsz = sizeof(struct spdk_nvme_cmd) / 16;
# # ]
3959 : 0 : }
3960 : :
3961 [ - + # # : 512 : if (cdata->nvmf_specific.ioccsz > ((sizeof(struct spdk_nvme_cmd) + 0x1000) / 16)) {
# # # # ]
3962 : 0 : SPDK_WARNLOG("RDMA is configured to support up to 16 SGL entries while in capsule"
3963 : : " data is greater than 4KiB.\n");
3964 : 0 : SPDK_WARNLOG("When used in conjunction with the NVMe-oF initiator from the Linux "
3965 : : "kernel between versions 5.4 and 5.12 data corruption may occur for "
3966 : : "writes that are not a multiple of 4KiB in size.\n");
3967 : 0 : }
3968 : 512 : }
3969 : :
3970 : : static void
3971 : 128 : nvmf_rdma_discover(struct spdk_nvmf_transport *transport,
3972 : : struct spdk_nvme_transport_id *trid,
3973 : : struct spdk_nvmf_discovery_log_page_entry *entry)
3974 : : {
3975 [ # # # # ]: 128 : entry->trtype = SPDK_NVMF_TRTYPE_RDMA;
3976 [ # # # # : 128 : entry->adrfam = trid->adrfam;
# # # # ]
3977 [ # # # # ]: 128 : entry->treq.secure_channel = SPDK_NVMF_TREQ_SECURE_CHANNEL_NOT_REQUIRED;
3978 : :
3979 [ # # # # ]: 128 : spdk_strcpy_pad(entry->trsvcid, trid->trsvcid, sizeof(entry->trsvcid), ' ');
3980 [ # # # # ]: 128 : spdk_strcpy_pad(entry->traddr, trid->traddr, sizeof(entry->traddr), ' ');
3981 : :
3982 [ # # # # : 128 : entry->tsas.rdma.rdma_qptype = SPDK_NVMF_RDMA_QPTYPE_RELIABLE_CONNECTED;
# # # # ]
3983 [ # # # # : 128 : entry->tsas.rdma.rdma_prtype = SPDK_NVMF_RDMA_PRTYPE_NONE;
# # # # ]
3984 [ # # # # : 128 : entry->tsas.rdma.rdma_cms = SPDK_NVMF_RDMA_CMS_RDMA_CM;
# # # # ]
3985 : 128 : }
3986 : :
3987 : : static int
3988 : 278 : nvmf_rdma_poller_create(struct spdk_nvmf_rdma_transport *rtransport,
3989 : : struct spdk_nvmf_rdma_poll_group *rgroup, struct spdk_nvmf_rdma_device *device,
3990 : : struct spdk_nvmf_rdma_poller **out_poller)
3991 : : {
3992 : : struct spdk_nvmf_rdma_poller *poller;
3993 : 0 : struct spdk_rdma_provider_srq_init_attr srq_init_attr;
3994 : 0 : struct spdk_nvmf_rdma_resource_opts opts;
3995 : : int num_cqe;
3996 : :
3997 : 278 : poller = calloc(1, sizeof(*poller));
3998 [ - + ]: 278 : if (!poller) {
3999 : 0 : SPDK_ERRLOG("Unable to allocate memory for new RDMA poller\n");
4000 : 0 : return -1;
4001 : : }
4002 : :
4003 [ # # # # ]: 278 : poller->device = device;
4004 [ # # # # ]: 278 : poller->group = rgroup;
4005 [ # # ]: 278 : *out_poller = poller;
4006 : :
4007 [ # # # # : 278 : RB_INIT(&poller->qpairs);
# # ]
4008 [ # # # # : 278 : STAILQ_INIT(&poller->qpairs_pending_send);
# # # # #
# # # # #
# # ]
4009 [ # # # # : 278 : STAILQ_INIT(&poller->qpairs_pending_recv);
# # # # #
# # # # #
# # ]
4010 : :
4011 [ # # # # : 278 : TAILQ_INSERT_TAIL(&rgroup->pollers, poller, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
4012 [ - + - + : 278 : SPDK_DEBUGLOG(rdma, "Create poller %p on device %p in poll group %p.\n", poller, device, rgroup);
# # ]
4013 [ - + + - : 278 : if (rtransport->rdma_opts.no_srq == false && device->num_srq < device->attr.max_srq) {
+ - # # #
# # # # #
# # # # #
# # # ]
4014 [ - + # # : 278 : if ((int)rtransport->rdma_opts.max_srq_depth > device->attr.max_srq_wr) {
# # # # #
# # # #
# ]
4015 [ # # # # : 0 : SPDK_WARNLOG("Requested SRQ depth %u, max supported by dev %s is %d\n",
# # # # #
# # # # #
# # # # #
# # # ]
4016 : : rtransport->rdma_opts.max_srq_depth, device->context->device->name, device->attr.max_srq_wr);
4017 : 0 : }
4018 [ # # # # : 278 : poller->max_srq_depth = spdk_min((int)rtransport->rdma_opts.max_srq_depth, device->attr.max_srq_wr);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
4019 : :
4020 [ # # # # ]: 278 : device->num_srq++;
4021 [ # # ]: 278 : memset(&srq_init_attr, 0, sizeof(srq_init_attr));
4022 [ # # # # ]: 278 : srq_init_attr.pd = device->pd;
4023 [ # # # # : 278 : srq_init_attr.stats = &poller->stat.qp_stats.recv;
# # # # ]
4024 [ # # # # : 278 : srq_init_attr.srq_init_attr.attr.max_wr = poller->max_srq_depth;
# # # # #
# ]
4025 [ # # # # : 278 : srq_init_attr.srq_init_attr.attr.max_sge = spdk_min(device->attr.max_sge, NVMF_DEFAULT_RX_SGE);
# # # # #
# # # # #
# # # # #
# ]
4026 [ # # # # ]: 278 : poller->srq = spdk_rdma_provider_srq_create(&srq_init_attr);
4027 [ - + # # : 278 : if (!poller->srq) {
# # ]
4028 [ # # ]: 0 : SPDK_ERRLOG("Unable to create shared receive queue, errno %d\n", errno);
4029 : 0 : return -1;
4030 : : }
4031 : :
4032 [ # # # # : 278 : opts.qp = poller->srq;
# # ]
4033 [ # # # # : 278 : opts.map = device->map;
# # ]
4034 : 278 : opts.qpair = NULL;
4035 [ # # ]: 278 : opts.shared = true;
4036 [ # # # # : 278 : opts.max_queue_depth = poller->max_srq_depth;
# # ]
4037 [ # # # # : 278 : opts.in_capsule_data_size = rtransport->transport.opts.in_capsule_data_size;
# # # # #
# ]
4038 : :
4039 [ # # # # ]: 278 : poller->resources = nvmf_rdma_resources_create(&opts);
4040 [ - + # # : 278 : if (!poller->resources) {
# # ]
4041 : 0 : SPDK_ERRLOG("Unable to allocate resources for shared receive queue.\n");
4042 : 0 : return -1;
4043 : : }
4044 : 0 : }
4045 : :
4046 : : /*
4047 : : * When using an srq, we can limit the completion queue at startup.
4048 : : * The following formula represents the calculation:
4049 : : * num_cqe = num_recv + num_data_wr + num_send_wr.
4050 : : * where num_recv=num_data_wr=and num_send_wr=poller->max_srq_depth
4051 : : */
4052 [ + - # # : 278 : if (poller->srq) {
# # ]
4053 [ # # # # : 278 : num_cqe = poller->max_srq_depth * 3;
# # ]
4054 : 0 : } else {
4055 [ # # # # : 0 : num_cqe = rtransport->rdma_opts.num_cqe;
# # ]
4056 : : }
4057 : :
4058 [ # # # # : 278 : poller->cq = ibv_create_cq(device->context, num_cqe, poller, NULL, 0);
# # # # ]
4059 [ - + # # : 278 : if (!poller->cq) {
# # ]
4060 : 0 : SPDK_ERRLOG("Unable to create completion queue\n");
4061 : 0 : return -1;
4062 : : }
4063 [ # # # # ]: 278 : poller->num_cqe = num_cqe;
4064 : 278 : return 0;
4065 : 0 : }
4066 : :
4067 : : static void
4068 : 0 : _nvmf_rdma_register_poller_in_group(void *c)
4069 : : {
4070 : 0 : struct spdk_nvmf_rdma_poller *poller;
4071 : 0 : struct poller_manage_ctx *ctx = c;
4072 : : struct spdk_nvmf_rdma_device *device;
4073 : : int rc;
4074 : :
4075 [ # # # # : 0 : rc = nvmf_rdma_poller_create(ctx->rtransport, ctx->rgroup, ctx->device, &poller);
# # # # #
# # # ]
4076 [ # # # # ]: 0 : if (rc < 0 && poller) {
4077 : 0 : nvmf_rdma_poller_destroy(poller);
4078 : 0 : }
4079 : :
4080 [ # # # # ]: 0 : device = ctx->device;
4081 [ # # ]: 0 : if (nvmf_rdma_all_pollers_management_done(ctx)) {
4082 [ # # # # ]: 0 : device->is_ready = true;
4083 : 0 : }
4084 : 0 : }
4085 : :
4086 : : static void nvmf_rdma_poll_group_destroy(struct spdk_nvmf_transport_poll_group *group);
4087 : :
4088 : : static struct spdk_nvmf_transport_poll_group *
4089 : 154 : nvmf_rdma_poll_group_create(struct spdk_nvmf_transport *transport,
4090 : : struct spdk_nvmf_poll_group *group)
4091 : : {
4092 : : struct spdk_nvmf_rdma_transport *rtransport;
4093 : : struct spdk_nvmf_rdma_poll_group *rgroup;
4094 : 15 : struct spdk_nvmf_rdma_poller *poller;
4095 : : struct spdk_nvmf_rdma_device *device;
4096 : : int rc;
4097 : :
4098 [ - + ]: 154 : if (spdk_interrupt_mode_is_enabled()) {
4099 : 0 : SPDK_ERRLOG("RDMA transport does not support interrupt mode\n");
4100 : 0 : return NULL;
4101 : : }
4102 : :
4103 : 154 : rtransport = SPDK_CONTAINEROF(transport, struct spdk_nvmf_rdma_transport, transport);
4104 : :
4105 : 154 : rgroup = calloc(1, sizeof(*rgroup));
4106 [ - + ]: 154 : if (!rgroup) {
4107 : 0 : return NULL;
4108 : : }
4109 : :
4110 [ # # # # : 154 : TAILQ_INIT(&rgroup->pollers);
# # # # #
# # # # #
# # ]
4111 : :
4112 [ + + # # : 432 : TAILQ_FOREACH(device, &rtransport->devices, link) {
# # # # #
# # # #
# ]
4113 : 278 : rc = nvmf_rdma_poller_create(rtransport, rgroup, device, &poller);
4114 [ - + ]: 278 : if (rc < 0) {
4115 [ # # ]: 0 : nvmf_rdma_poll_group_destroy(&rgroup->group);
4116 : 0 : return NULL;
4117 : : }
4118 : 0 : }
4119 : :
4120 [ # # # # : 154 : TAILQ_INSERT_TAIL(&rtransport->poll_groups, rgroup, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
4121 [ + + # # : 154 : if (rtransport->conn_sched.next_admin_pg == NULL) {
# # # # ]
4122 [ # # # # : 48 : rtransport->conn_sched.next_admin_pg = rgroup;
# # ]
4123 [ # # # # : 48 : rtransport->conn_sched.next_io_pg = rgroup;
# # ]
4124 : 0 : }
4125 : :
4126 [ # # ]: 154 : return &rgroup->group;
4127 : 0 : }
4128 : :
4129 : : static uint32_t
4130 : 6827 : nvmf_poll_group_get_io_qpair_count(struct spdk_nvmf_poll_group *pg)
4131 : : {
4132 : : uint32_t count;
4133 : :
4134 : : /* Just assume that unassociated qpairs will eventually be io
4135 : : * qpairs. This is close enough for the use cases for this
4136 : : * function.
4137 : : */
4138 [ - + # # ]: 6827 : pthread_mutex_lock(&pg->mutex);
4139 [ # # # # : 6827 : count = pg->stat.current_io_qpairs + pg->current_unassociated_qpairs;
# # # # #
# ]
4140 [ - + # # ]: 6827 : pthread_mutex_unlock(&pg->mutex);
4141 : :
4142 : 6827 : return count;
4143 : : }
4144 : :
4145 : : static struct spdk_nvmf_transport_poll_group *
4146 : 2495 : nvmf_rdma_get_optimal_poll_group(struct spdk_nvmf_qpair *qpair)
4147 : : {
4148 : : struct spdk_nvmf_rdma_transport *rtransport;
4149 : : struct spdk_nvmf_rdma_poll_group **pg;
4150 : : struct spdk_nvmf_transport_poll_group *result;
4151 : : uint32_t count;
4152 : :
4153 [ # # # # ]: 2495 : rtransport = SPDK_CONTAINEROF(qpair->transport, struct spdk_nvmf_rdma_transport, transport);
4154 : :
4155 [ + + # # : 2495 : if (TAILQ_EMPTY(&rtransport->poll_groups)) {
# # # # ]
4156 : 6 : return NULL;
4157 : : }
4158 : :
4159 [ + + # # : 2489 : if (qpair->qid == 0) {
# # ]
4160 [ # # # # ]: 532 : pg = &rtransport->conn_sched.next_admin_pg;
4161 : 0 : } else {
4162 : : struct spdk_nvmf_rdma_poll_group *pg_min, *pg_start, *pg_current;
4163 : : uint32_t min_value;
4164 : :
4165 [ # # # # ]: 1957 : pg = &rtransport->conn_sched.next_io_pg;
4166 [ # # ]: 1957 : pg_min = *pg;
4167 [ # # ]: 1957 : pg_start = *pg;
4168 [ # # ]: 1957 : pg_current = *pg;
4169 [ # # # # : 1957 : min_value = nvmf_poll_group_get_io_qpair_count(pg_current->group.group);
# # ]
4170 : :
4171 : 0 : while (1) {
4172 [ # # # # : 4870 : count = nvmf_poll_group_get_io_qpair_count(pg_current->group.group);
# # ]
4173 : :
4174 [ + + ]: 4870 : if (count < min_value) {
4175 : 3 : min_value = count;
4176 : 3 : pg_min = pg_current;
4177 : 0 : }
4178 : :
4179 [ # # # # : 4870 : pg_current = TAILQ_NEXT(pg_current, link);
# # ]
4180 [ + + ]: 4870 : if (pg_current == NULL) {
4181 [ # # # # : 1356 : pg_current = TAILQ_FIRST(&rtransport->poll_groups);
# # ]
4182 : 0 : }
4183 : :
4184 [ + + + + ]: 4870 : if (pg_current == pg_start || min_value == 0) {
4185 : 0 : break;
4186 : : }
4187 : : }
4188 [ # # ]: 1957 : *pg = pg_min;
4189 : : }
4190 : :
4191 [ - + # # : 2489 : assert(*pg != NULL);
# # ]
4192 : :
4193 [ # # # # ]: 2489 : result = &(*pg)->group;
4194 : :
4195 [ # # # # : 2489 : *pg = TAILQ_NEXT(*pg, link);
# # # # #
# ]
4196 [ + + # # ]: 2489 : if (*pg == NULL) {
4197 [ # # # # : 859 : *pg = TAILQ_FIRST(&rtransport->poll_groups);
# # # # ]
4198 : 0 : }
4199 : :
4200 : 2489 : return result;
4201 : 0 : }
4202 : :
4203 : : static void
4204 : 278 : nvmf_rdma_poller_destroy(struct spdk_nvmf_rdma_poller *poller)
4205 : : {
4206 : : struct spdk_nvmf_rdma_qpair *qpair, *tmp_qpair;
4207 : : int rc;
4208 : :
4209 [ + + # # : 278 : TAILQ_REMOVE(&poller->group->pollers, poller, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
4210 [ - + - - : 278 : RB_FOREACH_SAFE(qpair, qpairs_tree, &poller->qpairs, tmp_qpair) {
# # ]
4211 : 0 : nvmf_rdma_qpair_destroy(qpair);
4212 : 0 : }
4213 : :
4214 [ + - # # : 278 : if (poller->srq) {
# # ]
4215 [ + - # # : 278 : if (poller->resources) {
# # ]
4216 [ # # # # ]: 278 : nvmf_rdma_resources_destroy(poller->resources);
4217 : 0 : }
4218 [ # # # # ]: 278 : spdk_rdma_provider_srq_destroy(poller->srq);
4219 [ - + - + : 278 : SPDK_DEBUGLOG(rdma, "Destroyed RDMA shared queue %p\n", poller->srq);
# # # # #
# ]
4220 : 0 : }
4221 : :
4222 [ + - # # : 278 : if (poller->cq) {
# # ]
4223 [ # # # # ]: 278 : rc = ibv_destroy_cq(poller->cq);
4224 [ - + ]: 278 : if (rc != 0) {
4225 [ # # ]: 0 : SPDK_ERRLOG("Destroy cq return %d, error: %s\n", rc, strerror(errno));
4226 : 0 : }
4227 : 0 : }
4228 : :
4229 [ - + # # : 278 : if (poller->destroy_cb) {
# # ]
4230 [ # # # # : 0 : poller->destroy_cb(poller->destroy_cb_ctx);
# # # # #
# # # ]
4231 [ # # # # ]: 0 : poller->destroy_cb = NULL;
4232 : 0 : }
4233 : :
4234 : 278 : free(poller);
4235 : 278 : }
4236 : :
4237 : : static void
4238 : 154 : nvmf_rdma_poll_group_destroy(struct spdk_nvmf_transport_poll_group *group)
4239 : : {
4240 : : struct spdk_nvmf_rdma_poll_group *rgroup, *next_rgroup;
4241 : : struct spdk_nvmf_rdma_poller *poller, *tmp;
4242 : : struct spdk_nvmf_rdma_transport *rtransport;
4243 : :
4244 : 154 : rgroup = SPDK_CONTAINEROF(group, struct spdk_nvmf_rdma_poll_group, group);
4245 [ - + ]: 154 : if (!rgroup) {
4246 : 0 : return;
4247 : : }
4248 : :
4249 [ + + # # : 432 : TAILQ_FOREACH_SAFE(poller, &rgroup->pollers, link, tmp) {
# # # # #
# # # # #
# # ]
4250 : 278 : nvmf_rdma_poller_destroy(poller);
4251 : 0 : }
4252 : :
4253 [ - + # # : 154 : if (rgroup->group.transport == NULL) {
# # # # ]
4254 : : /* Transport can be NULL when nvmf_rdma_poll_group_create()
4255 : : * calls this function directly in a failure path. */
4256 : 0 : free(rgroup);
4257 : 0 : return;
4258 : : }
4259 : :
4260 [ # # # # : 154 : rtransport = SPDK_CONTAINEROF(rgroup->group.transport, struct spdk_nvmf_rdma_transport, transport);
# # ]
4261 : :
4262 [ # # # # : 154 : next_rgroup = TAILQ_NEXT(rgroup, link);
# # ]
4263 [ + + # # : 154 : TAILQ_REMOVE(&rtransport->poll_groups, rgroup, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
4264 [ + + ]: 154 : if (next_rgroup == NULL) {
4265 [ # # # # : 71 : next_rgroup = TAILQ_FIRST(&rtransport->poll_groups);
# # ]
4266 : 0 : }
4267 [ + + # # : 154 : if (rtransport->conn_sched.next_admin_pg == rgroup) {
# # # # ]
4268 [ # # # # : 96 : rtransport->conn_sched.next_admin_pg = next_rgroup;
# # ]
4269 : 0 : }
4270 [ + + # # : 154 : if (rtransport->conn_sched.next_io_pg == rgroup) {
# # # # ]
4271 [ # # # # : 101 : rtransport->conn_sched.next_io_pg = next_rgroup;
# # ]
4272 : 0 : }
4273 : :
4274 : 154 : free(rgroup);
4275 : 0 : }
4276 : :
4277 : : static void
4278 : 0 : nvmf_rdma_qpair_reject_connection(struct spdk_nvmf_rdma_qpair *rqpair)
4279 : : {
4280 [ # # # # : 0 : if (rqpair->cm_id != NULL) {
# # ]
4281 [ # # # # ]: 0 : nvmf_rdma_event_reject(rqpair->cm_id, SPDK_NVMF_RDMA_ERROR_NO_RESOURCES);
4282 : 0 : }
4283 : 0 : }
4284 : :
4285 : : static int
4286 : 2453 : nvmf_rdma_poll_group_add(struct spdk_nvmf_transport_poll_group *group,
4287 : : struct spdk_nvmf_qpair *qpair)
4288 : : {
4289 : : struct spdk_nvmf_rdma_poll_group *rgroup;
4290 : : struct spdk_nvmf_rdma_qpair *rqpair;
4291 : : struct spdk_nvmf_rdma_device *device;
4292 : : struct spdk_nvmf_rdma_poller *poller;
4293 : : int rc;
4294 : :
4295 : 2453 : rgroup = SPDK_CONTAINEROF(group, struct spdk_nvmf_rdma_poll_group, group);
4296 : 2453 : rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
4297 : :
4298 [ # # # # ]: 2453 : device = rqpair->device;
4299 : :
4300 [ + - # # : 2458 : TAILQ_FOREACH(poller, &rgroup->pollers, link) {
# # # # #
# # # #
# ]
4301 [ + + # # : 2458 : if (poller->device == device) {
# # ]
4302 : 2453 : break;
4303 : : }
4304 : 0 : }
4305 : :
4306 [ - + ]: 2453 : if (!poller) {
4307 : 0 : SPDK_ERRLOG("No poller found for device.\n");
4308 : 0 : return -1;
4309 : : }
4310 : :
4311 [ - + - + : 2453 : if (poller->need_destroy) {
# # # # ]
4312 : 0 : SPDK_ERRLOG("Poller is destroying.\n");
4313 : 0 : return -1;
4314 : : }
4315 : :
4316 [ # # # # ]: 2453 : rqpair->poller = poller;
4317 [ # # # # : 2453 : rqpair->srq = rqpair->poller->srq;
# # # # #
# # # ]
4318 : :
4319 : 2453 : rc = nvmf_rdma_qpair_initialize(qpair);
4320 [ - + ]: 2453 : if (rc < 0) {
4321 : 0 : SPDK_ERRLOG("Failed to initialize nvmf_rdma_qpair with qpair=%p\n", qpair);
4322 [ # # # # ]: 0 : rqpair->poller = NULL;
4323 [ # # # # ]: 0 : rqpair->srq = NULL;
4324 : 0 : return -1;
4325 : : }
4326 : :
4327 [ # # ]: 2453 : RB_INSERT(qpairs_tree, &poller->qpairs, rqpair);
4328 : :
4329 [ # # # # ]: 2453 : rc = nvmf_rdma_event_accept(rqpair->cm_id, rqpair);
4330 [ - + ]: 2453 : if (rc) {
4331 : : /* Try to reject, but we probably can't */
4332 : 0 : nvmf_rdma_qpair_reject_connection(rqpair);
4333 : 0 : return -1;
4334 : : }
4335 : :
4336 : 2453 : return 0;
4337 : 0 : }
4338 : :
4339 : : static int
4340 : 2453 : nvmf_rdma_poll_group_remove(struct spdk_nvmf_transport_poll_group *group,
4341 : : struct spdk_nvmf_qpair *qpair)
4342 : : {
4343 : : struct spdk_nvmf_rdma_qpair *rqpair;
4344 : :
4345 : 2453 : rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
4346 [ - + # # : 2453 : assert(group->transport->tgt != NULL);
# # # # #
# # # ]
4347 : :
4348 [ # # # # : 2453 : rqpair->destruct_channel = spdk_get_io_channel(group->transport->tgt);
# # # # #
# # # ]
4349 : :
4350 [ - + # # : 2453 : if (!rqpair->destruct_channel) {
# # ]
4351 : 0 : SPDK_WARNLOG("failed to get io_channel, qpair %p\n", qpair);
4352 : 0 : return 0;
4353 : : }
4354 : :
4355 : : /* Sanity check that we get io_channel on the correct thread */
4356 [ + - # # : 2453 : if (qpair->group) {
# # ]
4357 [ - + # # : 2453 : assert(qpair->group->thread == spdk_io_channel_get_thread(rqpair->destruct_channel));
# # # # #
# # # # #
# # ]
4358 : 0 : }
4359 : :
4360 : 2453 : return 0;
4361 : 0 : }
4362 : :
4363 : : static int
4364 : 1348 : nvmf_rdma_request_free(struct spdk_nvmf_request *req)
4365 : : {
4366 : 1348 : struct spdk_nvmf_rdma_request *rdma_req = SPDK_CONTAINEROF(req, struct spdk_nvmf_rdma_request, req);
4367 [ # # # # : 1348 : struct spdk_nvmf_rdma_transport *rtransport = SPDK_CONTAINEROF(req->qpair->transport,
# # # # ]
4368 : : struct spdk_nvmf_rdma_transport, transport);
4369 [ # # # # : 1348 : struct spdk_nvmf_rdma_qpair *rqpair = SPDK_CONTAINEROF(rdma_req->req.qpair,
# # ]
4370 : : struct spdk_nvmf_rdma_qpair, qpair);
4371 : :
4372 : : /*
4373 : : * AER requests are freed when a qpair is destroyed. The recv corresponding to that request
4374 : : * needs to be returned to the shared receive queue or the poll group will eventually be
4375 : : * starved of RECV structures.
4376 : : */
4377 [ + - + - : 1348 : if (rqpair->srq && rdma_req->recv) {
# # # # #
# # # ]
4378 : : int rc;
4379 : 0 : struct ibv_recv_wr *bad_recv_wr;
4380 : :
4381 [ # # # # : 1348 : spdk_rdma_provider_srq_queue_recv_wrs(rqpair->srq, &rdma_req->recv->wr);
# # # # #
# ]
4382 [ # # # # ]: 1348 : rc = spdk_rdma_provider_srq_flush_recv_wrs(rqpair->srq, &bad_recv_wr);
4383 [ - + ]: 1348 : if (rc) {
4384 : 0 : SPDK_ERRLOG("Unable to re-post rx descriptor\n");
4385 : 0 : }
4386 : 0 : }
4387 : :
4388 : 1348 : _nvmf_rdma_request_free(rdma_req, rtransport);
4389 : 1348 : return 0;
4390 : : }
4391 : :
4392 : : static int
4393 : 7795094 : nvmf_rdma_request_complete(struct spdk_nvmf_request *req)
4394 : : {
4395 [ # # # # : 7795094 : struct spdk_nvmf_rdma_transport *rtransport = SPDK_CONTAINEROF(req->qpair->transport,
# # # # ]
4396 : : struct spdk_nvmf_rdma_transport, transport);
4397 : 7795094 : struct spdk_nvmf_rdma_request *rdma_req = SPDK_CONTAINEROF(req,
4398 : : struct spdk_nvmf_rdma_request, req);
4399 [ # # # # : 7795094 : struct spdk_nvmf_rdma_qpair *rqpair = SPDK_CONTAINEROF(rdma_req->req.qpair,
# # ]
4400 : : struct spdk_nvmf_rdma_qpair, qpair);
4401 : :
4402 [ - + - + : 7795094 : if (spdk_unlikely(rqpair->ibv_in_error_state)) {
# # # # ]
4403 : : /* The connection is dead. Move the request directly to the completed state. */
4404 [ # # # # ]: 0 : rdma_req->state = RDMA_REQUEST_STATE_COMPLETED;
4405 : 0 : } else {
4406 : : /* The connection is alive, so process the request as normal */
4407 [ # # # # ]: 7795094 : rdma_req->state = RDMA_REQUEST_STATE_EXECUTED;
4408 : : }
4409 : :
4410 : 7795094 : nvmf_rdma_request_process(rtransport, rdma_req);
4411 : :
4412 : 7795094 : return 0;
4413 : : }
4414 : :
4415 : : static void
4416 : 2453 : nvmf_rdma_close_qpair(struct spdk_nvmf_qpair *qpair,
4417 : : spdk_nvmf_transport_qpair_fini_cb cb_fn, void *cb_arg)
4418 : : {
4419 : 2453 : struct spdk_nvmf_rdma_qpair *rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
4420 : :
4421 [ # # # # ]: 2453 : rqpair->to_close = true;
4422 : :
4423 : : /* This happens only when the qpair is disconnected before
4424 : : * it is added to the poll group. Since there is no poll group,
4425 : : * the RDMA qp has not been initialized yet and the RDMA CM
4426 : : * event has not yet been acknowledged, so we need to reject it.
4427 : : */
4428 [ - + # # : 2453 : if (rqpair->qpair.state == SPDK_NVMF_QPAIR_UNINITIALIZED) {
# # # # ]
4429 : 0 : nvmf_rdma_qpair_reject_connection(rqpair);
4430 : 0 : nvmf_rdma_qpair_destroy(rqpair);
4431 : 0 : return;
4432 : : }
4433 : :
4434 [ + - # # : 2453 : if (rqpair->rdma_qp) {
# # ]
4435 [ # # # # ]: 2453 : spdk_rdma_provider_qp_disconnect(rqpair->rdma_qp);
4436 : 0 : }
4437 : :
4438 : 2453 : nvmf_rdma_destroy_drained_qpair(rqpair);
4439 : :
4440 [ + - ]: 2453 : if (cb_fn) {
4441 [ # # # # ]: 2453 : cb_fn(cb_arg);
4442 : 0 : }
4443 : 0 : }
4444 : :
4445 : : static struct spdk_nvmf_rdma_qpair *
4446 : 7798039 : get_rdma_qpair_from_wc(struct spdk_nvmf_rdma_poller *rpoller, struct ibv_wc *wc)
4447 : : {
4448 : 0 : struct spdk_nvmf_rdma_qpair find;
4449 : :
4450 [ # # # # : 7798039 : find.qp_num = wc->qp_num;
# # ]
4451 : :
4452 [ # # ]: 7798039 : return RB_FIND(qpairs_tree, &rpoller->qpairs, &find);
4453 : : }
4454 : :
4455 : : #ifdef DEBUG
4456 : : static int
4457 : 7794833 : nvmf_rdma_req_is_completing(struct spdk_nvmf_rdma_request *rdma_req)
4458 : : {
4459 [ + + # # : 11772391 : return rdma_req->state == RDMA_REQUEST_STATE_TRANSFERRING_CONTROLLER_TO_HOST ||
# # ]
4460 [ + - # # ]: 3977558 : rdma_req->state == RDMA_REQUEST_STATE_COMPLETING;
4461 : : }
4462 : : #endif
4463 : :
4464 : : static void
4465 : 0 : _poller_reset_failed_recvs(struct spdk_nvmf_rdma_poller *rpoller, struct ibv_recv_wr *bad_recv_wr,
4466 : : int rc)
4467 : : {
4468 : : struct spdk_nvmf_rdma_recv *rdma_recv;
4469 : : struct spdk_nvmf_rdma_wr *bad_rdma_wr;
4470 : :
4471 [ # # ]: 0 : SPDK_ERRLOG("Failed to post a recv for the poller %p with errno %d\n", rpoller, -rc);
4472 [ # # ]: 0 : while (bad_recv_wr != NULL) {
4473 [ # # # # ]: 0 : bad_rdma_wr = (struct spdk_nvmf_rdma_wr *)bad_recv_wr->wr_id;
4474 : 0 : rdma_recv = SPDK_CONTAINEROF(bad_rdma_wr, struct spdk_nvmf_rdma_recv, rdma_wr);
4475 : :
4476 [ # # # # : 0 : rdma_recv->qpair->current_recv_depth++;
# # ]
4477 [ # # # # ]: 0 : bad_recv_wr = bad_recv_wr->next;
4478 [ # # # # : 0 : SPDK_ERRLOG("Failed to post a recv for the qpair %p with errno %d\n", rdma_recv->qpair, -rc);
# # ]
4479 [ # # # # : 0 : spdk_nvmf_qpair_disconnect(&rdma_recv->qpair->qpair);
# # ]
4480 : : }
4481 : 0 : }
4482 : :
4483 : : static void
4484 : 0 : _qp_reset_failed_recvs(struct spdk_nvmf_rdma_qpair *rqpair, struct ibv_recv_wr *bad_recv_wr, int rc)
4485 : : {
4486 [ # # ]: 0 : SPDK_ERRLOG("Failed to post a recv for the qpair %p with errno %d\n", rqpair, -rc);
4487 [ # # ]: 0 : while (bad_recv_wr != NULL) {
4488 [ # # # # ]: 0 : bad_recv_wr = bad_recv_wr->next;
4489 [ # # ]: 0 : rqpair->current_recv_depth++;
4490 : : }
4491 [ # # ]: 0 : spdk_nvmf_qpair_disconnect(&rqpair->qpair);
4492 : 0 : }
4493 : :
4494 : : static void
4495 : 868128236 : _poller_submit_recvs(struct spdk_nvmf_rdma_transport *rtransport,
4496 : : struct spdk_nvmf_rdma_poller *rpoller)
4497 : : {
4498 : : struct spdk_nvmf_rdma_qpair *rqpair;
4499 : 0 : struct ibv_recv_wr *bad_recv_wr;
4500 : : int rc;
4501 : :
4502 [ + - # # : 868128236 : if (rpoller->srq) {
# # ]
4503 [ # # # # ]: 868128236 : rc = spdk_rdma_provider_srq_flush_recv_wrs(rpoller->srq, &bad_recv_wr);
4504 [ - + ]: 868128236 : if (spdk_unlikely(rc)) {
4505 : 0 : _poller_reset_failed_recvs(rpoller, bad_recv_wr, rc);
4506 : 0 : }
4507 : 0 : } else {
4508 [ # # # # : 0 : while (!STAILQ_EMPTY(&rpoller->qpairs_pending_recv)) {
# # # # ]
4509 [ # # # # : 0 : rqpair = STAILQ_FIRST(&rpoller->qpairs_pending_recv);
# # ]
4510 [ # # # # ]: 0 : rc = spdk_rdma_provider_qp_flush_recv_wrs(rqpair->rdma_qp, &bad_recv_wr);
4511 [ # # ]: 0 : if (spdk_unlikely(rc)) {
4512 : 0 : _qp_reset_failed_recvs(rqpair, bad_recv_wr, rc);
4513 : 0 : }
4514 [ # # # # : 0 : STAILQ_REMOVE_HEAD(&rpoller->qpairs_pending_recv, recv_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
4515 : : }
4516 : : }
4517 : 868128236 : }
4518 : :
4519 : : static void
4520 : 0 : _qp_reset_failed_sends(struct spdk_nvmf_rdma_transport *rtransport,
4521 : : struct spdk_nvmf_rdma_qpair *rqpair, struct ibv_send_wr *bad_wr, int rc)
4522 : : {
4523 : : struct spdk_nvmf_rdma_wr *bad_rdma_wr;
4524 : 0 : struct spdk_nvmf_rdma_request *prev_rdma_req = NULL, *cur_rdma_req = NULL;
4525 : :
4526 [ # # ]: 0 : SPDK_ERRLOG("Failed to post a send for the qpair %p with errno %d\n", rqpair, -rc);
4527 [ # # # # : 0 : for (; bad_wr != NULL; bad_wr = bad_wr->next) {
# # ]
4528 [ # # # # ]: 0 : bad_rdma_wr = (struct spdk_nvmf_rdma_wr *)bad_wr->wr_id;
4529 [ # # # # : 0 : assert(rqpair->current_send_depth > 0);
# # # # ]
4530 [ # # ]: 0 : rqpair->current_send_depth--;
4531 [ # # # # : 0 : switch (bad_rdma_wr->type) {
# # # ]
4532 : 0 : case RDMA_WR_TYPE_DATA:
4533 : 0 : cur_rdma_req = SPDK_CONTAINEROF(bad_rdma_wr, struct spdk_nvmf_rdma_request, data_wr);
4534 [ # # # # : 0 : if (bad_wr->opcode == IBV_WR_RDMA_READ) {
# # ]
4535 [ # # # # : 0 : assert(rqpair->current_read_depth > 0);
# # # # ]
4536 [ # # ]: 0 : rqpair->current_read_depth--;
4537 : 0 : }
4538 : 0 : break;
4539 : 0 : case RDMA_WR_TYPE_SEND:
4540 : 0 : cur_rdma_req = SPDK_CONTAINEROF(bad_rdma_wr, struct spdk_nvmf_rdma_request, rsp_wr);
4541 : 0 : break;
4542 : 0 : default:
4543 : 0 : SPDK_ERRLOG("Found a RECV in the list of pending SEND requests for qpair %p\n", rqpair);
4544 : 0 : prev_rdma_req = cur_rdma_req;
4545 : 0 : continue;
4546 : : }
4547 : :
4548 [ # # ]: 0 : if (prev_rdma_req == cur_rdma_req) {
4549 : : /* this request was handled by an earlier wr. i.e. we were performing an nvme read. */
4550 : : /* We only have to check against prev_wr since each requests wrs are contiguous in this list. */
4551 : 0 : continue;
4552 : : }
4553 : :
4554 [ # # # # : 0 : switch (cur_rdma_req->state) {
# # # ]
4555 : 0 : case RDMA_REQUEST_STATE_TRANSFERRING_HOST_TO_CONTROLLER:
4556 [ # # # # : 0 : cur_rdma_req->req.rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
# # # # #
# # # #
# ]
4557 [ # # # # : 0 : STAILQ_INSERT_TAIL(&rqpair->pending_rdma_send_queue, cur_rdma_req, state_link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
4558 [ # # # # ]: 0 : cur_rdma_req->state = RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING;
4559 : 0 : break;
4560 : 0 : case RDMA_REQUEST_STATE_TRANSFERRING_CONTROLLER_TO_HOST:
4561 : : case RDMA_REQUEST_STATE_COMPLETING:
4562 [ # # # # ]: 0 : cur_rdma_req->state = RDMA_REQUEST_STATE_COMPLETED;
4563 : 0 : break;
4564 : 0 : default:
4565 [ # # # # ]: 0 : SPDK_ERRLOG("Found a request in a bad state %d when draining pending SEND requests for qpair %p\n",
4566 : : cur_rdma_req->state, rqpair);
4567 : 0 : continue;
4568 : : }
4569 : :
4570 : 0 : nvmf_rdma_request_process(rtransport, cur_rdma_req);
4571 : 0 : prev_rdma_req = cur_rdma_req;
4572 : 0 : }
4573 : :
4574 [ # # # # ]: 0 : if (spdk_nvmf_qpair_is_active(&rqpair->qpair)) {
4575 : : /* Disconnect the connection. */
4576 [ # # ]: 0 : spdk_nvmf_qpair_disconnect(&rqpair->qpair);
4577 : 0 : }
4578 : :
4579 : 0 : }
4580 : :
4581 : : static void
4582 : 868128236 : _poller_submit_sends(struct spdk_nvmf_rdma_transport *rtransport,
4583 : : struct spdk_nvmf_rdma_poller *rpoller)
4584 : : {
4585 : : struct spdk_nvmf_rdma_qpair *rqpair;
4586 : 868128236 : struct ibv_send_wr *bad_wr = NULL;
4587 : : int rc;
4588 : :
4589 [ + + # # : 1737601781 : while (!STAILQ_EMPTY(&rpoller->qpairs_pending_send)) {
# # # # ]
4590 [ # # # # : 1345309 : rqpair = STAILQ_FIRST(&rpoller->qpairs_pending_send);
# # ]
4591 [ # # # # ]: 1345309 : rc = spdk_rdma_provider_qp_flush_send_wrs(rqpair->rdma_qp, &bad_wr);
4592 : :
4593 : : /* bad wr always points to the first wr that failed. */
4594 [ - + ]: 1345309 : if (spdk_unlikely(rc)) {
4595 : 0 : _qp_reset_failed_sends(rtransport, rqpair, bad_wr, rc);
4596 : 0 : }
4597 [ + + # # : 1345309 : STAILQ_REMOVE_HEAD(&rpoller->qpairs_pending_send, send_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
4598 : : }
4599 : 868128236 : }
4600 : :
4601 : : static const char *
4602 : 0 : nvmf_rdma_wr_type_str(enum spdk_nvmf_rdma_wr_type wr_type)
4603 : : {
4604 [ # # # # ]: 0 : switch (wr_type) {
4605 : 0 : case RDMA_WR_TYPE_RECV:
4606 : 0 : return "RECV";
4607 : 0 : case RDMA_WR_TYPE_SEND:
4608 : 0 : return "SEND";
4609 : 0 : case RDMA_WR_TYPE_DATA:
4610 : 0 : return "DATA";
4611 : 0 : default:
4612 : 0 : SPDK_ERRLOG("Unknown WR type %d\n", wr_type);
4613 [ # # ]: 0 : SPDK_UNREACHABLE();
4614 : : }
4615 : 0 : }
4616 : :
4617 : : static inline void
4618 : 0 : nvmf_rdma_log_wc_status(struct spdk_nvmf_rdma_qpair *rqpair, struct ibv_wc *wc)
4619 : : {
4620 [ # # # # : 0 : enum spdk_nvmf_rdma_wr_type wr_type = ((struct spdk_nvmf_rdma_wr *)wc->wr_id)->type;
# # # # ]
4621 : :
4622 [ # # # # : 0 : if (wc->status == IBV_WC_WR_FLUSH_ERR) {
# # ]
4623 : : /* If qpair is in ERR state, we will receive completions for all posted and not completed
4624 : : * Work Requests with IBV_WC_WR_FLUSH_ERR status. Don't log an error in that case */
4625 [ # # # # : 0 : SPDK_DEBUGLOG(rdma,
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
4626 : : "Error on CQ %p, (qp state %d, in_error %d) request 0x%lu, type %s, status: (%d): %s\n",
4627 : : rqpair->poller->cq, rqpair->qpair.state, rqpair->ibv_in_error_state, wc->wr_id,
4628 : : nvmf_rdma_wr_type_str(wr_type), wc->status, ibv_wc_status_str(wc->status));
4629 : 0 : } else {
4630 [ # # # # : 0 : SPDK_ERRLOG("Error on CQ %p, (qp state %d, in_error %d) request 0x%lu, type %s, status: (%d): %s\n",
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
4631 : : rqpair->poller->cq, rqpair->qpair.state, rqpair->ibv_in_error_state, wc->wr_id,
4632 : : nvmf_rdma_wr_type_str(wr_type), wc->status, ibv_wc_status_str(wc->status));
4633 : : }
4634 : 0 : }
4635 : :
4636 : : static int
4637 : 868128236 : nvmf_rdma_poller_poll(struct spdk_nvmf_rdma_transport *rtransport,
4638 : : struct spdk_nvmf_rdma_poller *rpoller)
4639 : : {
4640 : 0 : struct ibv_wc wc[32];
4641 : : struct spdk_nvmf_rdma_wr *rdma_wr;
4642 : : struct spdk_nvmf_rdma_request *rdma_req;
4643 : : struct spdk_nvmf_rdma_recv *rdma_recv;
4644 : : struct spdk_nvmf_rdma_qpair *rqpair, *tmp_rqpair;
4645 : : int reaped, i;
4646 : 868128236 : int count = 0;
4647 : : int rc;
4648 : 868128236 : bool error = false;
4649 : 868128236 : uint64_t poll_tsc = spdk_get_ticks();
4650 : :
4651 [ - + - + : 868128236 : if (spdk_unlikely(rpoller->need_destroy)) {
# # # # ]
4652 : : /* If qpair is closed before poller destroy, nvmf_rdma_destroy_drained_qpair may not
4653 : : * be called because we cannot poll anything from cq. So we call that here to force
4654 : : * destroy the qpair after to_close turning true.
4655 : : */
4656 [ # # # # : 0 : RB_FOREACH_SAFE(rqpair, qpairs_tree, &rpoller->qpairs, tmp_rqpair) {
# # ]
4657 : 0 : nvmf_rdma_destroy_drained_qpair(rqpair);
4658 : 0 : }
4659 : 0 : return 0;
4660 : : }
4661 : :
4662 : : /* Poll for completing operations. */
4663 [ # # # # ]: 868128236 : reaped = ibv_poll_cq(rpoller->cq, 32, wc);
4664 [ - + ]: 868128236 : if (spdk_unlikely(reaped < 0)) {
4665 [ # # # # ]: 0 : SPDK_ERRLOG("Error polling CQ! (%d): %s\n",
4666 : : errno, spdk_strerror(errno));
4667 : 0 : return -1;
4668 [ + + ]: 868128236 : } else if (reaped == 0) {
4669 [ # # # # ]: 866474474 : rpoller->stat.idle_polls++;
4670 : 0 : }
4671 : :
4672 [ # # # # ]: 868128236 : rpoller->stat.polls++;
4673 [ # # # # : 868128236 : rpoller->stat.completions += reaped;
# # ]
4674 : :
4675 [ + + # # ]: 885538770 : for (i = 0; i < reaped; i++) {
4676 : :
4677 [ # # # # : 17410534 : rdma_wr = (struct spdk_nvmf_rdma_wr *)wc[i].wr_id;
# # # # ]
4678 : :
4679 [ + + + - : 17410534 : switch (rdma_wr->type) {
# # # # ]
4680 : 7794833 : case RDMA_WR_TYPE_SEND:
4681 : 7794833 : rdma_req = SPDK_CONTAINEROF(rdma_wr, struct spdk_nvmf_rdma_request, rsp_wr);
4682 [ # # # # : 7794833 : rqpair = SPDK_CONTAINEROF(rdma_req->req.qpair, struct spdk_nvmf_rdma_qpair, qpair);
# # ]
4683 : :
4684 [ + - # # : 7794833 : if (spdk_likely(!wc[i].status)) {
# # # # #
# ]
4685 [ # # ]: 7794833 : count++;
4686 [ - + # # : 7794833 : assert(wc[i].opcode == IBV_WC_SEND);
# # # # #
# # # ]
4687 [ - + # # ]: 7794833 : assert(nvmf_rdma_req_is_completing(rdma_req));
4688 : 0 : }
4689 : :
4690 [ # # # # ]: 7794833 : rdma_req->state = RDMA_REQUEST_STATE_COMPLETED;
4691 : : /* RDMA_WRITE operation completed. +1 since it was chained with rsp WR */
4692 [ - + # # : 7794833 : assert(rqpair->current_send_depth >= (uint32_t)rdma_req->num_outstanding_data_wr + 1);
# # # # #
# # # ]
4693 [ # # # # : 7794833 : rqpair->current_send_depth -= rdma_req->num_outstanding_data_wr + 1;
# # # # #
# ]
4694 [ # # # # ]: 7794833 : rdma_req->num_outstanding_data_wr = 0;
4695 : :
4696 : 7794833 : nvmf_rdma_request_process(rtransport, rdma_req);
4697 : 7794833 : break;
4698 : 7798039 : case RDMA_WR_TYPE_RECV:
4699 : : /* rdma_recv->qpair will be invalid if using an SRQ. In that case we have to get the qpair from the wc. */
4700 : 7798039 : rdma_recv = SPDK_CONTAINEROF(rdma_wr, struct spdk_nvmf_rdma_recv, rdma_wr);
4701 [ + - # # : 7798039 : if (rpoller->srq != NULL) {
# # ]
4702 [ # # # # : 7798039 : rdma_recv->qpair = get_rdma_qpair_from_wc(rpoller, &wc[i]);
# # # # ]
4703 : : /* It is possible that there are still some completions for destroyed QP
4704 : : * associated with SRQ. We just ignore these late completions and re-post
4705 : : * receive WRs back to SRQ.
4706 : : */
4707 [ - + # # : 7798039 : if (spdk_unlikely(NULL == rdma_recv->qpair)) {
# # ]
4708 : 0 : struct ibv_recv_wr *bad_wr;
4709 : :
4710 [ # # # # : 0 : rdma_recv->wr.next = NULL;
# # ]
4711 [ # # # # : 0 : spdk_rdma_provider_srq_queue_recv_wrs(rpoller->srq, &rdma_recv->wr);
# # ]
4712 [ # # # # ]: 0 : rc = spdk_rdma_provider_srq_flush_recv_wrs(rpoller->srq, &bad_wr);
4713 [ # # ]: 0 : if (rc) {
4714 : 0 : SPDK_ERRLOG("Failed to re-post recv WR to SRQ, err %d\n", rc);
4715 : 0 : }
4716 : 0 : continue;
4717 : : }
4718 : 0 : }
4719 [ # # # # ]: 7798039 : rqpair = rdma_recv->qpair;
4720 : :
4721 [ - + # # ]: 7798039 : assert(rqpair != NULL);
4722 [ + - # # : 7798039 : if (spdk_likely(!wc[i].status)) {
# # # # #
# ]
4723 [ - + # # : 7798039 : assert(wc[i].opcode == IBV_WC_RECV);
# # # # #
# # # ]
4724 [ - + # # : 7798039 : if (rqpair->current_recv_depth >= rqpair->max_queue_depth) {
# # # # #
# ]
4725 [ # # ]: 0 : spdk_nvmf_qpair_disconnect(&rqpair->qpair);
4726 : 0 : break;
4727 : : }
4728 : 0 : }
4729 : :
4730 [ # # # # : 7798039 : rdma_recv->wr.next = NULL;
# # ]
4731 [ # # ]: 7798039 : rqpair->current_recv_depth++;
4732 [ # # # # ]: 7798039 : rdma_recv->receive_tsc = poll_tsc;
4733 [ # # # # ]: 7798039 : rpoller->stat.requests++;
4734 [ + + # # : 7798039 : STAILQ_INSERT_HEAD(&rqpair->resources->incoming_queue, rdma_recv, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
4735 [ # # # # ]: 7798039 : rqpair->qpair.queue_depth++;
4736 : 7798039 : break;
4737 : 1817662 : case RDMA_WR_TYPE_DATA:
4738 : 1817662 : rdma_req = SPDK_CONTAINEROF(rdma_wr, struct spdk_nvmf_rdma_request, data_wr);
4739 [ # # # # : 1817662 : rqpair = SPDK_CONTAINEROF(rdma_req->req.qpair, struct spdk_nvmf_rdma_qpair, qpair);
# # ]
4740 : :
4741 [ - + # # : 1817662 : assert(rdma_req->num_outstanding_data_wr > 0);
# # # # ]
4742 : :
4743 [ # # ]: 1817662 : rqpair->current_send_depth--;
4744 [ # # ]: 1817662 : rdma_req->num_outstanding_data_wr--;
4745 [ + - # # : 1817662 : if (spdk_likely(!wc[i].status)) {
# # # # #
# ]
4746 [ - + # # : 1817662 : assert(wc[i].opcode == IBV_WC_RDMA_READ);
# # # # #
# # # ]
4747 [ # # ]: 1817662 : rqpair->current_read_depth--;
4748 : : /* wait for all outstanding reads associated with the same rdma_req to complete before proceeding. */
4749 [ + + # # : 1817662 : if (rdma_req->num_outstanding_data_wr == 0) {
# # ]
4750 [ + + # # : 789710 : if (rdma_req->num_remaining_data_wr) {
# # ]
4751 : : /* Only part of RDMA_READ operations was submitted, process the rest */
4752 : 61340 : nvmf_rdma_request_reset_transfer_in(rdma_req, rtransport);
4753 [ # # # # ]: 61340 : rdma_req->state = RDMA_REQUEST_STATE_DATA_TRANSFER_TO_CONTROLLER_PENDING;
4754 : 61340 : nvmf_rdma_request_process(rtransport, rdma_req);
4755 : 61340 : break;
4756 : : }
4757 [ # # # # ]: 728370 : rdma_req->state = RDMA_REQUEST_STATE_READY_TO_EXECUTE;
4758 : 728370 : nvmf_rdma_request_process(rtransport, rdma_req);
4759 : 0 : }
4760 : 0 : } else {
4761 : : /* If the data transfer fails still force the queue into the error state,
4762 : : * if we were performing an RDMA_READ, we need to force the request into a
4763 : : * completed state since it wasn't linked to a send. However, in the RDMA_WRITE
4764 : : * case, we should wait for the SEND to complete. */
4765 [ # # # # : 0 : if (rdma_req->data.wr.opcode == IBV_WR_RDMA_READ) {
# # # # #
# ]
4766 [ # # ]: 0 : rqpair->current_read_depth--;
4767 [ # # # # : 0 : if (rdma_req->num_outstanding_data_wr == 0) {
# # ]
4768 [ # # # # : 0 : if (rdma_req->num_remaining_data_wr) {
# # ]
4769 : : /* Partially sent request is still in the pending_rdma_read_queue,
4770 : : * remove it now before completing */
4771 [ # # # # ]: 0 : rdma_req->num_remaining_data_wr = 0;
4772 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->pending_rdma_read_queue, rdma_req, spdk_nvmf_rdma_request, state_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
4773 : 0 : }
4774 [ # # # # ]: 0 : rdma_req->state = RDMA_REQUEST_STATE_COMPLETED;
4775 : 0 : nvmf_rdma_request_process(rtransport, rdma_req);
4776 : 0 : }
4777 : 0 : }
4778 : : }
4779 : 1756322 : break;
4780 : 0 : default:
4781 [ # # # # : 0 : SPDK_ERRLOG("Received an unknown opcode on the CQ: %d\n", wc[i].opcode);
# # # # ]
4782 : 0 : continue;
4783 : : }
4784 : :
4785 : : /* Handle error conditions */
4786 [ - + # # : 17410534 : if (spdk_unlikely(wc[i].status)) {
# # # # #
# ]
4787 [ # # # # ]: 0 : rqpair->ibv_in_error_state = true;
4788 [ # # # # ]: 0 : nvmf_rdma_log_wc_status(rqpair, &wc[i]);
4789 : :
4790 : 0 : error = true;
4791 : :
4792 [ # # # # ]: 0 : if (spdk_nvmf_qpair_is_active(&rqpair->qpair)) {
4793 : : /* Disconnect the connection. */
4794 [ # # ]: 0 : spdk_nvmf_qpair_disconnect(&rqpair->qpair);
4795 : 0 : } else {
4796 : 0 : nvmf_rdma_destroy_drained_qpair(rqpair);
4797 : : }
4798 : 0 : continue;
4799 : : }
4800 : :
4801 : 17410534 : nvmf_rdma_qpair_process_pending(rtransport, rqpair, false);
4802 : :
4803 [ + + # # ]: 17410534 : if (spdk_unlikely(!spdk_nvmf_qpair_is_active(&rqpair->qpair))) {
4804 : 917 : nvmf_rdma_destroy_drained_qpair(rqpair);
4805 : 0 : }
4806 : 0 : }
4807 : :
4808 [ - + # # ]: 868128236 : if (spdk_unlikely(error == true)) {
4809 : 0 : return -1;
4810 : : }
4811 : :
4812 [ + + ]: 868128236 : if (reaped == 0) {
4813 : : /* In some cases we may not receive any CQE but we still may have pending IO requests waiting for
4814 : : * a resource (e.g. a WR from the data_wr_pool).
4815 : : * We need to start processing of such requests if no CQE reaped */
4816 : 866474474 : nvmf_rdma_poller_process_pending_buf_queue(rtransport, rpoller);
4817 : 0 : }
4818 : :
4819 : : /* submit outstanding work requests. */
4820 : 868128236 : _poller_submit_recvs(rtransport, rpoller);
4821 : 868128236 : _poller_submit_sends(rtransport, rpoller);
4822 : :
4823 : 868128236 : return count;
4824 : 0 : }
4825 : :
4826 : : static void
4827 : 0 : _nvmf_rdma_remove_destroyed_device(void *c)
4828 : : {
4829 : 0 : struct spdk_nvmf_rdma_transport *rtransport = c;
4830 : : struct spdk_nvmf_rdma_device *device, *device_tmp;
4831 : : int rc;
4832 : :
4833 [ # # # # : 0 : TAILQ_FOREACH_SAFE(device, &rtransport->devices, link, device_tmp) {
# # # # #
# # # # #
# # ]
4834 [ # # # # : 0 : if (device->ready_to_destroy) {
# # # # ]
4835 : 0 : destroy_ib_device(rtransport, device);
4836 : 0 : }
4837 : 0 : }
4838 : :
4839 : 0 : free_poll_fds(rtransport);
4840 : 0 : rc = generate_poll_fds(rtransport);
4841 : : /* cannot handle fd allocation error here */
4842 [ # # ]: 0 : if (rc != 0) {
4843 : 0 : SPDK_ERRLOG("Failed to generate poll fds after remove ib device.\n");
4844 : 0 : }
4845 : 0 : }
4846 : :
4847 : : static void
4848 : 0 : _nvmf_rdma_remove_poller_in_group_cb(void *c)
4849 : : {
4850 : 0 : struct poller_manage_ctx *ctx = c;
4851 [ # # # # ]: 0 : struct spdk_nvmf_rdma_transport *rtransport = ctx->rtransport;
4852 [ # # # # ]: 0 : struct spdk_nvmf_rdma_device *device = ctx->device;
4853 [ # # # # ]: 0 : struct spdk_thread *thread = ctx->thread;
4854 : :
4855 [ # # ]: 0 : if (nvmf_rdma_all_pollers_management_done(c)) {
4856 : : /* destroy device when last poller is destroyed */
4857 [ # # # # ]: 0 : device->ready_to_destroy = true;
4858 : 0 : spdk_thread_send_msg(thread, _nvmf_rdma_remove_destroyed_device, rtransport);
4859 : 0 : }
4860 : 0 : }
4861 : :
4862 : : static void
4863 : 0 : _nvmf_rdma_remove_poller_in_group(void *c)
4864 : : {
4865 : 0 : struct poller_manage_ctx *ctx = c;
4866 : :
4867 [ # # # # : 0 : ctx->rpoller->need_destroy = true;
# # # # ]
4868 [ # # # # : 0 : ctx->rpoller->destroy_cb_ctx = ctx;
# # # # ]
4869 [ # # # # : 0 : ctx->rpoller->destroy_cb = _nvmf_rdma_remove_poller_in_group_cb;
# # # # ]
4870 : :
4871 : : /* qp will be disconnected after receiving a RDMA_CM_EVENT_DEVICE_REMOVAL event. */
4872 [ # # # # : 0 : if (RB_EMPTY(&ctx->rpoller->qpairs)) {
# # # # #
# # # ]
4873 [ # # # # ]: 0 : nvmf_rdma_poller_destroy(ctx->rpoller);
4874 : 0 : }
4875 : 0 : }
4876 : :
4877 : : static int
4878 : 434064118 : nvmf_rdma_poll_group_poll(struct spdk_nvmf_transport_poll_group *group)
4879 : : {
4880 : : struct spdk_nvmf_rdma_transport *rtransport;
4881 : : struct spdk_nvmf_rdma_poll_group *rgroup;
4882 : : struct spdk_nvmf_rdma_poller *rpoller, *tmp;
4883 : 434064118 : int count = 0, rc, rc2 = 0;
4884 : :
4885 [ # # # # ]: 434064118 : rtransport = SPDK_CONTAINEROF(group->transport, struct spdk_nvmf_rdma_transport, transport);
4886 : 434064118 : rgroup = SPDK_CONTAINEROF(group, struct spdk_nvmf_rdma_poll_group, group);
4887 : :
4888 [ + + # # : 1302192354 : TAILQ_FOREACH_SAFE(rpoller, &rgroup->pollers, link, tmp) {
# # # # #
# # # # #
# # ]
4889 : 868128236 : rc = nvmf_rdma_poller_poll(rtransport, rpoller);
4890 [ - + ]: 868128236 : if (spdk_unlikely(rc < 0)) {
4891 [ # # ]: 0 : if (rc2 == 0) {
4892 : 0 : rc2 = rc;
4893 : 0 : }
4894 : 0 : continue;
4895 : : }
4896 [ # # ]: 868128236 : count += rc;
4897 : 0 : }
4898 : :
4899 [ - + ]: 434064118 : return rc2 ? rc2 : count;
4900 : : }
4901 : :
4902 : : static int
4903 : 3147 : nvmf_rdma_trid_from_cm_id(struct rdma_cm_id *id,
4904 : : struct spdk_nvme_transport_id *trid,
4905 : : bool peer)
4906 : : {
4907 : : struct sockaddr *saddr;
4908 : : uint16_t port;
4909 : :
4910 : 3147 : spdk_nvme_trid_populate_transport(trid, SPDK_NVME_TRANSPORT_RDMA);
4911 : :
4912 [ + + # # ]: 3147 : if (peer) {
4913 : 74 : saddr = rdma_get_peer_addr(id);
4914 : 0 : } else {
4915 : 3073 : saddr = rdma_get_local_addr(id);
4916 : : }
4917 [ + - - # : 3147 : switch (saddr->sa_family) {
# # # ]
4918 : 3147 : case AF_INET: {
4919 : 3147 : struct sockaddr_in *saddr_in = (struct sockaddr_in *)saddr;
4920 : :
4921 [ # # # # ]: 3147 : trid->adrfam = SPDK_NVMF_ADRFAM_IPV4;
4922 [ # # ]: 3147 : inet_ntop(AF_INET, &saddr_in->sin_addr,
4923 [ # # ]: 3147 : trid->traddr, sizeof(trid->traddr));
4924 [ + + # # ]: 3147 : if (peer) {
4925 : 74 : port = ntohs(rdma_get_dst_port(id));
4926 : 0 : } else {
4927 : 3073 : port = ntohs(rdma_get_src_port(id));
4928 : : }
4929 [ # # ]: 3147 : snprintf(trid->trsvcid, sizeof(trid->trsvcid), "%u", port);
4930 : 3147 : break;
4931 : : }
4932 : 0 : case AF_INET6: {
4933 : 0 : struct sockaddr_in6 *saddr_in = (struct sockaddr_in6 *)saddr;
4934 [ # # # # ]: 0 : trid->adrfam = SPDK_NVMF_ADRFAM_IPV6;
4935 [ # # ]: 0 : inet_ntop(AF_INET6, &saddr_in->sin6_addr,
4936 [ # # ]: 0 : trid->traddr, sizeof(trid->traddr));
4937 [ # # # # ]: 0 : if (peer) {
4938 : 0 : port = ntohs(rdma_get_dst_port(id));
4939 : 0 : } else {
4940 : 0 : port = ntohs(rdma_get_src_port(id));
4941 : : }
4942 [ # # ]: 0 : snprintf(trid->trsvcid, sizeof(trid->trsvcid), "%u", port);
4943 : 0 : break;
4944 : : }
4945 : 0 : default:
4946 : 0 : return -1;
4947 : :
4948 : : }
4949 : :
4950 : 3147 : return 0;
4951 : 0 : }
4952 : :
4953 : : static int
4954 : 74 : nvmf_rdma_qpair_get_peer_trid(struct spdk_nvmf_qpair *qpair,
4955 : : struct spdk_nvme_transport_id *trid)
4956 : : {
4957 : : struct spdk_nvmf_rdma_qpair *rqpair;
4958 : :
4959 : 74 : rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
4960 : :
4961 [ # # # # ]: 74 : return nvmf_rdma_trid_from_cm_id(rqpair->cm_id, trid, true);
4962 : : }
4963 : :
4964 : : static int
4965 : 0 : nvmf_rdma_qpair_get_local_trid(struct spdk_nvmf_qpair *qpair,
4966 : : struct spdk_nvme_transport_id *trid)
4967 : : {
4968 : : struct spdk_nvmf_rdma_qpair *rqpair;
4969 : :
4970 : 0 : rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
4971 : :
4972 [ # # # # ]: 0 : return nvmf_rdma_trid_from_cm_id(rqpair->cm_id, trid, false);
4973 : : }
4974 : :
4975 : : static int
4976 : 3073 : nvmf_rdma_qpair_get_listen_trid(struct spdk_nvmf_qpair *qpair,
4977 : : struct spdk_nvme_transport_id *trid)
4978 : : {
4979 : : struct spdk_nvmf_rdma_qpair *rqpair;
4980 : :
4981 : 3073 : rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
4982 : :
4983 [ # # # # ]: 3073 : return nvmf_rdma_trid_from_cm_id(rqpair->listen_id, trid, false);
4984 : : }
4985 : :
4986 : : void
4987 : 0 : spdk_nvmf_rdma_init_hooks(struct spdk_nvme_rdma_hooks *hooks)
4988 : : {
4989 : 0 : g_nvmf_hooks = *hooks;
4990 : 0 : }
4991 : :
4992 : : static void
4993 : 0 : nvmf_rdma_request_set_abort_status(struct spdk_nvmf_request *req,
4994 : : struct spdk_nvmf_rdma_request *rdma_req_to_abort,
4995 : : struct spdk_nvmf_rdma_qpair *rqpair)
4996 : : {
4997 [ # # # # : 0 : rdma_req_to_abort->req.rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
# # # # #
# # # #
# ]
4998 [ # # # # : 0 : rdma_req_to_abort->req.rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST;
# # # # #
# # # #
# ]
4999 : :
5000 [ # # # # : 0 : STAILQ_INSERT_TAIL(&rqpair->pending_rdma_send_queue, rdma_req_to_abort, state_link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
5001 [ # # # # ]: 0 : rdma_req_to_abort->state = RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING;
5002 : :
5003 [ # # # # : 0 : req->rsp->nvme_cpl.cdw0 &= ~1U; /* Command was successfully aborted. */
# # # # #
# ]
5004 : 0 : }
5005 : :
5006 : : static int
5007 : 9656 : _nvmf_rdma_qpair_abort_request(void *ctx)
5008 : : {
5009 : 9656 : struct spdk_nvmf_request *req = ctx;
5010 [ # # # # ]: 9656 : struct spdk_nvmf_rdma_request *rdma_req_to_abort = SPDK_CONTAINEROF(
5011 : : req->req_to_abort, struct spdk_nvmf_rdma_request, req);
5012 [ # # # # : 9656 : struct spdk_nvmf_rdma_qpair *rqpair = SPDK_CONTAINEROF(req->req_to_abort->qpair,
# # # # ]
5013 : : struct spdk_nvmf_rdma_qpair, qpair);
5014 : : int rc;
5015 : :
5016 [ # # ]: 9656 : spdk_poller_unregister(&req->poller);
5017 : :
5018 [ + - - - : 9656 : switch (rdma_req_to_abort->state) {
- - - # #
# # ]
5019 : 9656 : case RDMA_REQUEST_STATE_EXECUTING:
5020 : 9656 : rc = nvmf_ctrlr_abort_request(req);
5021 [ + - ]: 9656 : if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS) {
5022 : 9656 : return SPDK_POLLER_BUSY;
5023 : : }
5024 : 0 : break;
5025 : :
5026 : 0 : case RDMA_REQUEST_STATE_NEED_BUFFER:
5027 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->poller->group->group.pending_buf_queue,
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
5028 : : &rdma_req_to_abort->req, spdk_nvmf_request, buf_link);
5029 : :
5030 : 0 : nvmf_rdma_request_set_abort_status(req, rdma_req_to_abort, rqpair);
5031 : 0 : break;
5032 : :
5033 : 0 : case RDMA_REQUEST_STATE_DATA_TRANSFER_TO_CONTROLLER_PENDING:
5034 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->pending_rdma_read_queue, rdma_req_to_abort,
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
5035 : : spdk_nvmf_rdma_request, state_link);
5036 : :
5037 : 0 : nvmf_rdma_request_set_abort_status(req, rdma_req_to_abort, rqpair);
5038 : 0 : break;
5039 : :
5040 : 0 : case RDMA_REQUEST_STATE_DATA_TRANSFER_TO_HOST_PENDING:
5041 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->pending_rdma_write_queue, rdma_req_to_abort,
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
5042 : : spdk_nvmf_rdma_request, state_link);
5043 : :
5044 : 0 : nvmf_rdma_request_set_abort_status(req, rdma_req_to_abort, rqpair);
5045 : 0 : break;
5046 : :
5047 : 0 : case RDMA_REQUEST_STATE_READY_TO_COMPLETE_PENDING:
5048 : : /* Remove req from the list here to re-use common function */
5049 [ # # # # : 0 : STAILQ_REMOVE(&rqpair->pending_rdma_send_queue, rdma_req_to_abort,
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
5050 : : spdk_nvmf_rdma_request, state_link);
5051 : :
5052 : 0 : nvmf_rdma_request_set_abort_status(req, rdma_req_to_abort, rqpair);
5053 : 0 : break;
5054 : :
5055 : 0 : case RDMA_REQUEST_STATE_TRANSFERRING_HOST_TO_CONTROLLER:
5056 [ # # # # : 0 : if (spdk_get_ticks() < req->timeout_tsc) {
# # ]
5057 [ # # # # ]: 0 : req->poller = SPDK_POLLER_REGISTER(_nvmf_rdma_qpair_abort_request, req, 0);
5058 : 0 : return SPDK_POLLER_BUSY;
5059 : : }
5060 : 0 : break;
5061 : :
5062 : 0 : default:
5063 : 0 : break;
5064 : : }
5065 : :
5066 : 0 : spdk_nvmf_request_complete(req);
5067 : 0 : return SPDK_POLLER_BUSY;
5068 : 0 : }
5069 : :
5070 : : static void
5071 : 9716 : nvmf_rdma_qpair_abort_request(struct spdk_nvmf_qpair *qpair,
5072 : : struct spdk_nvmf_request *req)
5073 : : {
5074 : : struct spdk_nvmf_rdma_qpair *rqpair;
5075 : : struct spdk_nvmf_rdma_transport *rtransport;
5076 : : struct spdk_nvmf_transport *transport;
5077 : : uint16_t cid;
5078 : : uint32_t i, max_req_count;
5079 : 9716 : struct spdk_nvmf_rdma_request *rdma_req_to_abort = NULL, *rdma_req;
5080 : :
5081 : 9716 : rqpair = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_rdma_qpair, qpair);
5082 [ # # # # ]: 9716 : rtransport = SPDK_CONTAINEROF(qpair->transport, struct spdk_nvmf_rdma_transport, transport);
5083 [ # # ]: 9716 : transport = &rtransport->transport;
5084 : :
5085 [ # # # # : 9716 : cid = req->cmd->nvme_cmd.cdw10_bits.abort.cid;
# # # # #
# # # #
# ]
5086 [ - + # # : 9716 : max_req_count = rqpair->srq == NULL ? rqpair->max_queue_depth : rqpair->poller->max_srq_depth;
# # # # #
# # # # #
# # # # ]
5087 : :
5088 [ + + ]: 592344 : for (i = 0; i < max_req_count; i++) {
5089 [ # # # # : 592284 : rdma_req = &rqpair->resources->reqs[i];
# # # # #
# ]
5090 : : /* When SRQ == NULL, rqpair has its own requests and req.qpair pointer always points to the qpair
5091 : : * When SRQ != NULL all rqpairs share common requests and qpair pointer is assigned when we start to
5092 : : * process a request. So in both cases all requests which are not in FREE state have valid qpair ptr */
5093 [ + + + + : 592284 : if (rdma_req->state != RDMA_REQUEST_STATE_FREE && rdma_req->req.cmd->nvme_cmd.cid == cid &&
# # # # #
# # # # #
# # # # #
# # # ]
5094 [ + - # # : 9656 : rdma_req->req.qpair == qpair) {
# # ]
5095 : 9656 : rdma_req_to_abort = rdma_req;
5096 : 9656 : break;
5097 : : }
5098 : 0 : }
5099 : :
5100 [ + + ]: 9716 : if (rdma_req_to_abort == NULL) {
5101 : 60 : spdk_nvmf_request_complete(req);
5102 : 60 : return;
5103 : : }
5104 : :
5105 [ # # # # : 9656 : req->req_to_abort = &rdma_req_to_abort->req;
# # ]
5106 [ # # # # ]: 19312 : req->timeout_tsc = spdk_get_ticks() +
5107 [ # # # # : 9656 : transport->opts.abort_timeout_sec * spdk_get_ticks_hz();
# # ]
5108 [ # # # # ]: 9656 : req->poller = NULL;
5109 : :
5110 : 9656 : _nvmf_rdma_qpair_abort_request(req);
5111 : 0 : }
5112 : :
5113 : : static void
5114 : 8 : nvmf_rdma_poll_group_dump_stat(struct spdk_nvmf_transport_poll_group *group,
5115 : : struct spdk_json_write_ctx *w)
5116 : : {
5117 : : struct spdk_nvmf_rdma_poll_group *rgroup;
5118 : : struct spdk_nvmf_rdma_poller *rpoller;
5119 : :
5120 [ - + # # ]: 8 : assert(w != NULL);
5121 : :
5122 : 8 : rgroup = SPDK_CONTAINEROF(group, struct spdk_nvmf_rdma_poll_group, group);
5123 : :
5124 [ # # # # : 8 : spdk_json_write_named_uint64(w, "pending_data_buffer", rgroup->stat.pending_data_buffer);
# # ]
5125 : :
5126 : 8 : spdk_json_write_named_array_begin(w, "devices");
5127 : :
5128 [ + + # # : 24 : TAILQ_FOREACH(rpoller, &rgroup->pollers, link) {
# # # # #
# # # #
# ]
5129 : 16 : spdk_json_write_object_begin(w);
5130 : 16 : spdk_json_write_named_string(w, "name",
5131 [ # # # # : 16 : ibv_get_device_name(rpoller->device->context->device));
# # # # #
# # # ]
5132 : 16 : spdk_json_write_named_uint64(w, "polls",
5133 [ # # # # : 0 : rpoller->stat.polls);
# # ]
5134 : 16 : spdk_json_write_named_uint64(w, "idle_polls",
5135 [ # # # # : 0 : rpoller->stat.idle_polls);
# # ]
5136 : 16 : spdk_json_write_named_uint64(w, "completions",
5137 [ # # # # : 0 : rpoller->stat.completions);
# # ]
5138 : 16 : spdk_json_write_named_uint64(w, "requests",
5139 [ # # # # : 0 : rpoller->stat.requests);
# # ]
5140 : 16 : spdk_json_write_named_uint64(w, "request_latency",
5141 [ # # # # : 0 : rpoller->stat.request_latency);
# # ]
5142 : 16 : spdk_json_write_named_uint64(w, "pending_free_request",
5143 [ # # # # : 0 : rpoller->stat.pending_free_request);
# # ]
5144 : 16 : spdk_json_write_named_uint64(w, "pending_rdma_read",
5145 [ # # # # : 0 : rpoller->stat.pending_rdma_read);
# # ]
5146 : 16 : spdk_json_write_named_uint64(w, "pending_rdma_write",
5147 [ # # # # : 0 : rpoller->stat.pending_rdma_write);
# # ]
5148 : 16 : spdk_json_write_named_uint64(w, "pending_rdma_send",
5149 [ # # # # : 0 : rpoller->stat.pending_rdma_send);
# # ]
5150 : 16 : spdk_json_write_named_uint64(w, "total_send_wrs",
5151 [ # # # # : 0 : rpoller->stat.qp_stats.send.num_submitted_wrs);
# # # # #
# ]
5152 : 16 : spdk_json_write_named_uint64(w, "send_doorbell_updates",
5153 [ # # # # : 0 : rpoller->stat.qp_stats.send.doorbell_updates);
# # # # #
# ]
5154 : 16 : spdk_json_write_named_uint64(w, "total_recv_wrs",
5155 [ # # # # : 0 : rpoller->stat.qp_stats.recv.num_submitted_wrs);
# # # # #
# ]
5156 : 16 : spdk_json_write_named_uint64(w, "recv_doorbell_updates",
5157 [ # # # # : 0 : rpoller->stat.qp_stats.recv.doorbell_updates);
# # # # #
# ]
5158 : 16 : spdk_json_write_object_end(w);
5159 : 0 : }
5160 : :
5161 : 8 : spdk_json_write_array_end(w);
5162 : 8 : }
5163 : :
5164 : : const struct spdk_nvmf_transport_ops spdk_nvmf_transport_rdma = {
5165 : : .name = "RDMA",
5166 : : .type = SPDK_NVME_TRANSPORT_RDMA,
5167 : : .opts_init = nvmf_rdma_opts_init,
5168 : : .create = nvmf_rdma_create,
5169 : : .dump_opts = nvmf_rdma_dump_opts,
5170 : : .destroy = nvmf_rdma_destroy,
5171 : :
5172 : : .listen = nvmf_rdma_listen,
5173 : : .stop_listen = nvmf_rdma_stop_listen,
5174 : : .cdata_init = nvmf_rdma_cdata_init,
5175 : :
5176 : : .listener_discover = nvmf_rdma_discover,
5177 : :
5178 : : .poll_group_create = nvmf_rdma_poll_group_create,
5179 : : .get_optimal_poll_group = nvmf_rdma_get_optimal_poll_group,
5180 : : .poll_group_destroy = nvmf_rdma_poll_group_destroy,
5181 : : .poll_group_add = nvmf_rdma_poll_group_add,
5182 : : .poll_group_remove = nvmf_rdma_poll_group_remove,
5183 : : .poll_group_poll = nvmf_rdma_poll_group_poll,
5184 : :
5185 : : .req_free = nvmf_rdma_request_free,
5186 : : .req_complete = nvmf_rdma_request_complete,
5187 : :
5188 : : .qpair_fini = nvmf_rdma_close_qpair,
5189 : : .qpair_get_peer_trid = nvmf_rdma_qpair_get_peer_trid,
5190 : : .qpair_get_local_trid = nvmf_rdma_qpair_get_local_trid,
5191 : : .qpair_get_listen_trid = nvmf_rdma_qpair_get_listen_trid,
5192 : : .qpair_abort_request = nvmf_rdma_qpair_abort_request,
5193 : :
5194 : : .poll_group_dump_stat = nvmf_rdma_poll_group_dump_stat,
5195 : : };
5196 : :
5197 : 979 : SPDK_NVMF_TRANSPORT_REGISTER(rdma, &spdk_nvmf_transport_rdma);
5198 : 979 : SPDK_LOG_REGISTER_COMPONENT(rdma)
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