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[ceph.git] / ceph / src / spdk / dpdk / drivers / net / netvsc / hn_ethdev.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2016-2018 Microsoft Corporation
3 * Copyright(c) 2013-2016 Brocade Communications Systems, Inc.
4 * All rights reserved.
5 */
6
7 #include <stdint.h>
8 #include <string.h>
9 #include <stdio.h>
10 #include <errno.h>
11 #include <unistd.h>
12
13 #include <rte_ethdev.h>
14 #include <rte_memcpy.h>
15 #include <rte_string_fns.h>
16 #include <rte_memzone.h>
17 #include <rte_malloc.h>
18 #include <rte_atomic.h>
19 #include <rte_branch_prediction.h>
20 #include <rte_ether.h>
21 #include <rte_ethdev_driver.h>
22 #include <rte_cycles.h>
23 #include <rte_errno.h>
24 #include <rte_memory.h>
25 #include <rte_eal.h>
26 #include <rte_dev.h>
27 #include <rte_bus_vmbus.h>
28
29 #include "hn_logs.h"
30 #include "hn_var.h"
31 #include "hn_rndis.h"
32 #include "hn_nvs.h"
33 #include "ndis.h"
34
35 #define HN_TX_OFFLOAD_CAPS (DEV_TX_OFFLOAD_IPV4_CKSUM | \
36 DEV_TX_OFFLOAD_TCP_CKSUM | \
37 DEV_TX_OFFLOAD_UDP_CKSUM | \
38 DEV_TX_OFFLOAD_TCP_TSO | \
39 DEV_TX_OFFLOAD_MULTI_SEGS | \
40 DEV_TX_OFFLOAD_VLAN_INSERT)
41
42 #define HN_RX_OFFLOAD_CAPS (DEV_RX_OFFLOAD_CHECKSUM | \
43 DEV_RX_OFFLOAD_VLAN_STRIP | \
44 DEV_RX_OFFLOAD_CRC_STRIP)
45
46 int hn_logtype_init;
47 int hn_logtype_driver;
48
49 struct hn_xstats_name_off {
50 char name[RTE_ETH_XSTATS_NAME_SIZE];
51 unsigned int offset;
52 };
53
54 static const struct hn_xstats_name_off hn_stat_strings[] = {
55 { "good_packets", offsetof(struct hn_stats, packets) },
56 { "good_bytes", offsetof(struct hn_stats, bytes) },
57 { "errors", offsetof(struct hn_stats, errors) },
58 { "allocation_failed", offsetof(struct hn_stats, nomemory) },
59 { "multicast_packets", offsetof(struct hn_stats, multicast) },
60 { "broadcast_packets", offsetof(struct hn_stats, broadcast) },
61 { "undersize_packets", offsetof(struct hn_stats, size_bins[0]) },
62 { "size_64_packets", offsetof(struct hn_stats, size_bins[1]) },
63 { "size_65_127_packets", offsetof(struct hn_stats, size_bins[2]) },
64 { "size_128_255_packets", offsetof(struct hn_stats, size_bins[3]) },
65 { "size_256_511_packets", offsetof(struct hn_stats, size_bins[4]) },
66 { "size_512_1023_packets", offsetof(struct hn_stats, size_bins[5]) },
67 { "size_1024_1518_packets", offsetof(struct hn_stats, size_bins[6]) },
68 { "size_1519_max_packets", offsetof(struct hn_stats, size_bins[7]) },
69 };
70
71 static struct rte_eth_dev *
72 eth_dev_vmbus_allocate(struct rte_vmbus_device *dev, size_t private_data_size)
73 {
74 struct rte_eth_dev *eth_dev;
75 const char *name;
76
77 if (!dev)
78 return NULL;
79
80 name = dev->device.name;
81
82 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
83 eth_dev = rte_eth_dev_allocate(name);
84 if (!eth_dev) {
85 PMD_DRV_LOG(NOTICE, "can not allocate rte ethdev");
86 return NULL;
87 }
88
89 if (private_data_size) {
90 eth_dev->data->dev_private =
91 rte_zmalloc_socket(name, private_data_size,
92 RTE_CACHE_LINE_SIZE, dev->device.numa_node);
93 if (!eth_dev->data->dev_private) {
94 PMD_DRV_LOG(NOTICE, "can not allocate driver data");
95 rte_eth_dev_release_port(eth_dev);
96 return NULL;
97 }
98 }
99 } else {
100 eth_dev = rte_eth_dev_attach_secondary(name);
101 if (!eth_dev) {
102 PMD_DRV_LOG(NOTICE, "can not attach secondary");
103 return NULL;
104 }
105 }
106
107 eth_dev->device = &dev->device;
108 eth_dev->intr_handle = &dev->intr_handle;
109
110 return eth_dev;
111 }
112
113 static void
114 eth_dev_vmbus_release(struct rte_eth_dev *eth_dev)
115 {
116 /* free ether device */
117 rte_eth_dev_release_port(eth_dev);
118
119 if (rte_eal_process_type() == RTE_PROC_PRIMARY)
120 rte_free(eth_dev->data->dev_private);
121
122 eth_dev->data->dev_private = NULL;
123
124 /*
125 * Secondary process will check the name to attach.
126 * Clear this field to avoid attaching a released ports.
127 */
128 eth_dev->data->name[0] = '\0';
129
130 eth_dev->device = NULL;
131 eth_dev->intr_handle = NULL;
132 }
133
134 /* Update link status.
135 * Note: the DPDK definition of "wait_to_complete"
136 * means block this call until link is up.
137 * which is not worth supporting.
138 */
139 static int
140 hn_dev_link_update(struct rte_eth_dev *dev,
141 __rte_unused int wait_to_complete)
142 {
143 struct hn_data *hv = dev->data->dev_private;
144 struct rte_eth_link link, old;
145 int error;
146
147 old = dev->data->dev_link;
148
149 error = hn_rndis_get_linkstatus(hv);
150 if (error)
151 return error;
152
153 hn_rndis_get_linkspeed(hv);
154
155 link = (struct rte_eth_link) {
156 .link_duplex = ETH_LINK_FULL_DUPLEX,
157 .link_autoneg = ETH_LINK_SPEED_FIXED,
158 .link_speed = hv->link_speed / 10000,
159 };
160
161 if (hv->link_status == NDIS_MEDIA_STATE_CONNECTED)
162 link.link_status = ETH_LINK_UP;
163 else
164 link.link_status = ETH_LINK_DOWN;
165
166 if (old.link_status == link.link_status)
167 return 0;
168
169 PMD_INIT_LOG(DEBUG, "Port %d is %s", dev->data->port_id,
170 (link.link_status == ETH_LINK_UP) ? "up" : "down");
171
172 return rte_eth_linkstatus_set(dev, &link);
173 }
174
175 static void hn_dev_info_get(struct rte_eth_dev *dev,
176 struct rte_eth_dev_info *dev_info)
177 {
178 struct hn_data *hv = dev->data->dev_private;
179
180 dev_info->speed_capa = ETH_LINK_SPEED_10G;
181 dev_info->min_rx_bufsize = HN_MIN_RX_BUF_SIZE;
182 dev_info->max_rx_pktlen = HN_MAX_XFER_LEN;
183 dev_info->max_mac_addrs = 1;
184
185 dev_info->hash_key_size = NDIS_HASH_KEYSIZE_TOEPLITZ;
186 dev_info->flow_type_rss_offloads =
187 ETH_RSS_IPV4 | ETH_RSS_IPV6 | ETH_RSS_TCP | ETH_RSS_UDP;
188
189 dev_info->max_rx_queues = hv->max_queues;
190 dev_info->max_tx_queues = hv->max_queues;
191
192 hn_rndis_get_offload(hv, dev_info);
193 }
194
195 static void
196 hn_dev_promiscuous_enable(struct rte_eth_dev *dev)
197 {
198 struct hn_data *hv = dev->data->dev_private;
199
200 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_PROMISCUOUS);
201 }
202
203 static void
204 hn_dev_promiscuous_disable(struct rte_eth_dev *dev)
205 {
206 struct hn_data *hv = dev->data->dev_private;
207 uint32_t filter;
208
209 filter = NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST;
210 if (dev->data->all_multicast)
211 filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
212 hn_rndis_set_rxfilter(hv, filter);
213 }
214
215 static void
216 hn_dev_allmulticast_enable(struct rte_eth_dev *dev)
217 {
218 struct hn_data *hv = dev->data->dev_private;
219
220 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED |
221 NDIS_PACKET_TYPE_ALL_MULTICAST |
222 NDIS_PACKET_TYPE_BROADCAST);
223 }
224
225 static void
226 hn_dev_allmulticast_disable(struct rte_eth_dev *dev)
227 {
228 struct hn_data *hv = dev->data->dev_private;
229
230 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED |
231 NDIS_PACKET_TYPE_BROADCAST);
232 }
233
234 /* Setup shared rx/tx queue data */
235 static int hn_subchan_configure(struct hn_data *hv,
236 uint32_t subchan)
237 {
238 struct vmbus_channel *primary = hn_primary_chan(hv);
239 int err;
240 unsigned int retry = 0;
241
242 PMD_DRV_LOG(DEBUG,
243 "open %u subchannels", subchan);
244
245 /* Send create sub channels command */
246 err = hn_nvs_alloc_subchans(hv, &subchan);
247 if (err)
248 return err;
249
250 while (subchan > 0) {
251 struct vmbus_channel *new_sc;
252 uint16_t chn_index;
253
254 err = rte_vmbus_subchan_open(primary, &new_sc);
255 if (err == -ENOENT && ++retry < 1000) {
256 /* This can happen if not ready yet */
257 rte_delay_ms(10);
258 continue;
259 }
260
261 if (err) {
262 PMD_DRV_LOG(ERR,
263 "open subchannel failed: %d", err);
264 return err;
265 }
266
267 retry = 0;
268 chn_index = rte_vmbus_sub_channel_index(new_sc);
269 if (chn_index == 0 || chn_index > hv->max_queues) {
270 PMD_DRV_LOG(ERR,
271 "Invalid subchannel offermsg channel %u",
272 chn_index);
273 return -EIO;
274 }
275
276 PMD_DRV_LOG(DEBUG, "new sub channel %u", chn_index);
277 hv->channels[chn_index] = new_sc;
278 --subchan;
279 }
280
281 return err;
282 }
283
284 static int hn_dev_configure(struct rte_eth_dev *dev)
285 {
286 const struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
287 const struct rte_eth_rxmode *rxmode = &dev_conf->rxmode;
288 const struct rte_eth_txmode *txmode = &dev_conf->txmode;
289
290 const struct rte_eth_rss_conf *rss_conf =
291 &dev_conf->rx_adv_conf.rss_conf;
292 struct hn_data *hv = dev->data->dev_private;
293 uint64_t unsupported;
294 int err, subchan;
295
296 PMD_INIT_FUNC_TRACE();
297
298 unsupported = txmode->offloads & ~HN_TX_OFFLOAD_CAPS;
299 if (unsupported) {
300 PMD_DRV_LOG(NOTICE,
301 "unsupported TX offload: %#" PRIx64,
302 unsupported);
303 return -EINVAL;
304 }
305
306 unsupported = rxmode->offloads & ~HN_RX_OFFLOAD_CAPS;
307 if (unsupported) {
308 PMD_DRV_LOG(NOTICE,
309 "unsupported RX offload: %#" PRIx64,
310 rxmode->offloads);
311 return -EINVAL;
312 }
313
314 err = hn_rndis_conf_offload(hv, txmode->offloads,
315 rxmode->offloads);
316 if (err) {
317 PMD_DRV_LOG(NOTICE,
318 "offload configure failed");
319 return err;
320 }
321
322 hv->num_queues = RTE_MAX(dev->data->nb_rx_queues,
323 dev->data->nb_tx_queues);
324 subchan = hv->num_queues - 1;
325 if (subchan > 0) {
326 err = hn_subchan_configure(hv, subchan);
327 if (err) {
328 PMD_DRV_LOG(NOTICE,
329 "subchannel configuration failed");
330 return err;
331 }
332
333 err = hn_rndis_conf_rss(hv, rss_conf);
334 if (err) {
335 PMD_DRV_LOG(NOTICE,
336 "rss configuration failed");
337 return err;
338 }
339 }
340
341 return 0;
342 }
343
344 static int hn_dev_stats_get(struct rte_eth_dev *dev,
345 struct rte_eth_stats *stats)
346 {
347 unsigned int i;
348
349 for (i = 0; i < dev->data->nb_tx_queues; i++) {
350 const struct hn_tx_queue *txq = dev->data->tx_queues[i];
351
352 if (!txq)
353 continue;
354
355 stats->opackets += txq->stats.packets;
356 stats->obytes += txq->stats.bytes;
357 stats->oerrors += txq->stats.errors + txq->stats.nomemory;
358
359 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
360 stats->q_opackets[i] = txq->stats.packets;
361 stats->q_obytes[i] = txq->stats.bytes;
362 }
363 }
364
365 for (i = 0; i < dev->data->nb_rx_queues; i++) {
366 const struct hn_rx_queue *rxq = dev->data->rx_queues[i];
367
368 if (!rxq)
369 continue;
370
371 stats->ipackets += rxq->stats.packets;
372 stats->ibytes += rxq->stats.bytes;
373 stats->ierrors += rxq->stats.errors;
374 stats->imissed += rxq->ring_full;
375
376 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
377 stats->q_ipackets[i] = rxq->stats.packets;
378 stats->q_ibytes[i] = rxq->stats.bytes;
379 }
380 }
381
382 stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed;
383 return 0;
384 }
385
386 static void
387 hn_dev_stats_reset(struct rte_eth_dev *dev)
388 {
389 unsigned int i;
390
391 PMD_INIT_FUNC_TRACE();
392
393 for (i = 0; i < dev->data->nb_tx_queues; i++) {
394 struct hn_tx_queue *txq = dev->data->tx_queues[i];
395
396 if (!txq)
397 continue;
398 memset(&txq->stats, 0, sizeof(struct hn_stats));
399 }
400
401 for (i = 0; i < dev->data->nb_rx_queues; i++) {
402 struct hn_rx_queue *rxq = dev->data->rx_queues[i];
403
404 if (!rxq)
405 continue;
406
407 memset(&rxq->stats, 0, sizeof(struct hn_stats));
408 rxq->ring_full = 0;
409 }
410 }
411
412 static int
413 hn_dev_xstats_get_names(struct rte_eth_dev *dev,
414 struct rte_eth_xstat_name *xstats_names,
415 __rte_unused unsigned int limit)
416 {
417 unsigned int i, t, count = 0;
418
419 PMD_INIT_FUNC_TRACE();
420
421 if (!xstats_names)
422 return dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings)
423 + dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings);
424
425 /* Note: limit checked in rte_eth_xstats_names() */
426 for (i = 0; i < dev->data->nb_tx_queues; i++) {
427 const struct hn_tx_queue *txq = dev->data->tx_queues[i];
428
429 if (!txq)
430 continue;
431
432 for (t = 0; t < RTE_DIM(hn_stat_strings); t++)
433 snprintf(xstats_names[count++].name,
434 RTE_ETH_XSTATS_NAME_SIZE,
435 "tx_q%u_%s", i, hn_stat_strings[t].name);
436 }
437
438 for (i = 0; i < dev->data->nb_rx_queues; i++) {
439 const struct hn_rx_queue *rxq = dev->data->rx_queues[i];
440
441 if (!rxq)
442 continue;
443
444 for (t = 0; t < RTE_DIM(hn_stat_strings); t++)
445 snprintf(xstats_names[count++].name,
446 RTE_ETH_XSTATS_NAME_SIZE,
447 "rx_q%u_%s", i,
448 hn_stat_strings[t].name);
449 }
450
451 return count;
452 }
453
454 static int
455 hn_dev_xstats_get(struct rte_eth_dev *dev,
456 struct rte_eth_xstat *xstats,
457 unsigned int n)
458 {
459 unsigned int i, t, count = 0;
460
461 const unsigned int nstats =
462 dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings)
463 + dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings);
464 const char *stats;
465
466 PMD_INIT_FUNC_TRACE();
467
468 if (n < nstats)
469 return nstats;
470
471 for (i = 0; i < dev->data->nb_tx_queues; i++) {
472 const struct hn_tx_queue *txq = dev->data->tx_queues[i];
473
474 if (!txq)
475 continue;
476
477 stats = (const char *)&txq->stats;
478 for (t = 0; t < RTE_DIM(hn_stat_strings); t++)
479 xstats[count++].value = *(const uint64_t *)
480 (stats + hn_stat_strings[t].offset);
481 }
482
483 for (i = 0; i < dev->data->nb_rx_queues; i++) {
484 const struct hn_rx_queue *rxq = dev->data->rx_queues[i];
485
486 if (!rxq)
487 continue;
488
489 stats = (const char *)&rxq->stats;
490 for (t = 0; t < RTE_DIM(hn_stat_strings); t++)
491 xstats[count++].value = *(const uint64_t *)
492 (stats + hn_stat_strings[t].offset);
493 }
494
495 return count;
496 }
497
498 static int
499 hn_dev_start(struct rte_eth_dev *dev)
500 {
501 struct hn_data *hv = dev->data->dev_private;
502
503 PMD_INIT_FUNC_TRACE();
504
505 /* check if lsc interrupt feature is enabled */
506 if (dev->data->dev_conf.intr_conf.lsc) {
507 PMD_DRV_LOG(ERR, "link status not supported yet");
508 return -ENOTSUP;
509 }
510
511 return hn_rndis_set_rxfilter(hv,
512 NDIS_PACKET_TYPE_BROADCAST |
513 NDIS_PACKET_TYPE_ALL_MULTICAST |
514 NDIS_PACKET_TYPE_DIRECTED);
515 }
516
517 static void
518 hn_dev_stop(struct rte_eth_dev *dev)
519 {
520 struct hn_data *hv = dev->data->dev_private;
521
522 PMD_INIT_FUNC_TRACE();
523
524 hn_rndis_set_rxfilter(hv, 0);
525 }
526
527 static void
528 hn_dev_close(struct rte_eth_dev *dev __rte_unused)
529 {
530 PMD_INIT_LOG(DEBUG, "close");
531 }
532
533 static const struct eth_dev_ops hn_eth_dev_ops = {
534 .dev_configure = hn_dev_configure,
535 .dev_start = hn_dev_start,
536 .dev_stop = hn_dev_stop,
537 .dev_close = hn_dev_close,
538 .dev_infos_get = hn_dev_info_get,
539 .txq_info_get = hn_dev_tx_queue_info,
540 .rxq_info_get = hn_dev_rx_queue_info,
541 .promiscuous_enable = hn_dev_promiscuous_enable,
542 .promiscuous_disable = hn_dev_promiscuous_disable,
543 .allmulticast_enable = hn_dev_allmulticast_enable,
544 .allmulticast_disable = hn_dev_allmulticast_disable,
545 .tx_queue_setup = hn_dev_tx_queue_setup,
546 .tx_queue_release = hn_dev_tx_queue_release,
547 .rx_queue_setup = hn_dev_rx_queue_setup,
548 .rx_queue_release = hn_dev_rx_queue_release,
549 .link_update = hn_dev_link_update,
550 .stats_get = hn_dev_stats_get,
551 .xstats_get = hn_dev_xstats_get,
552 .xstats_get_names = hn_dev_xstats_get_names,
553 .stats_reset = hn_dev_stats_reset,
554 .xstats_reset = hn_dev_stats_reset,
555 };
556
557 /*
558 * Setup connection between PMD and kernel.
559 */
560 static int
561 hn_attach(struct hn_data *hv, unsigned int mtu)
562 {
563 int error;
564
565 /* Attach NVS */
566 error = hn_nvs_attach(hv, mtu);
567 if (error)
568 goto failed_nvs;
569
570 /* Attach RNDIS */
571 error = hn_rndis_attach(hv);
572 if (error)
573 goto failed_rndis;
574
575 /*
576 * NOTE:
577 * Under certain conditions on certain versions of Hyper-V,
578 * the RNDIS rxfilter is _not_ zero on the hypervisor side
579 * after the successful RNDIS initialization.
580 */
581 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE);
582 return 0;
583 failed_rndis:
584 hn_nvs_detach(hv);
585 failed_nvs:
586 return error;
587 }
588
589 static void
590 hn_detach(struct hn_data *hv)
591 {
592 hn_nvs_detach(hv);
593 hn_rndis_detach(hv);
594 }
595
596 static int
597 eth_hn_dev_init(struct rte_eth_dev *eth_dev)
598 {
599 struct hn_data *hv = eth_dev->data->dev_private;
600 struct rte_device *device = eth_dev->device;
601 struct rte_vmbus_device *vmbus;
602 unsigned int rxr_cnt;
603 int err, max_chan;
604
605 PMD_INIT_FUNC_TRACE();
606
607 vmbus = container_of(device, struct rte_vmbus_device, device);
608 eth_dev->dev_ops = &hn_eth_dev_ops;
609 eth_dev->tx_pkt_burst = &hn_xmit_pkts;
610 eth_dev->rx_pkt_burst = &hn_recv_pkts;
611
612 /*
613 * for secondary processes, we don't initialize any further as primary
614 * has already done this work.
615 */
616 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
617 return 0;
618
619 /* Since Hyper-V only supports one MAC address, just use local data */
620 eth_dev->data->mac_addrs = &hv->mac_addr;
621
622 hv->vmbus = vmbus;
623 hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP];
624 hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP];
625 hv->port_id = eth_dev->data->port_id;
626
627 /* Initialize primary channel input for control operations */
628 err = rte_vmbus_chan_open(vmbus, &hv->channels[0]);
629 if (err)
630 return err;
631
632 hv->primary = hn_rx_queue_alloc(hv, 0,
633 eth_dev->device->numa_node);
634
635 if (!hv->primary)
636 return -ENOMEM;
637
638 err = hn_attach(hv, ETHER_MTU);
639 if (err)
640 goto failed;
641
642 err = hn_tx_pool_init(eth_dev);
643 if (err)
644 goto failed;
645
646 err = hn_rndis_get_eaddr(hv, hv->mac_addr.addr_bytes);
647 if (err)
648 goto failed;
649
650 max_chan = rte_vmbus_max_channels(vmbus);
651 PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan);
652 if (max_chan <= 0)
653 goto failed;
654
655 if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0)
656 rxr_cnt = 1;
657
658 hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan);
659
660 return 0;
661
662 failed:
663 PMD_INIT_LOG(NOTICE, "device init failed");
664
665 hn_detach(hv);
666 return err;
667 }
668
669 static int
670 eth_hn_dev_uninit(struct rte_eth_dev *eth_dev)
671 {
672 struct hn_data *hv = eth_dev->data->dev_private;
673
674 PMD_INIT_FUNC_TRACE();
675
676 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
677 return 0;
678
679 hn_dev_stop(eth_dev);
680 hn_dev_close(eth_dev);
681
682 eth_dev->dev_ops = NULL;
683 eth_dev->tx_pkt_burst = NULL;
684 eth_dev->rx_pkt_burst = NULL;
685
686 hn_detach(hv);
687 rte_vmbus_chan_close(hv->primary->chan);
688 rte_free(hv->primary);
689
690 eth_dev->data->mac_addrs = NULL;
691
692 return 0;
693 }
694
695 static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused,
696 struct rte_vmbus_device *dev)
697 {
698 struct rte_eth_dev *eth_dev;
699 int ret;
700
701 PMD_INIT_FUNC_TRACE();
702
703 eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data));
704 if (!eth_dev)
705 return -ENOMEM;
706
707 ret = eth_hn_dev_init(eth_dev);
708 if (ret)
709 eth_dev_vmbus_release(eth_dev);
710 else
711 rte_eth_dev_probing_finish(eth_dev);
712
713 return ret;
714 }
715
716 static int eth_hn_remove(struct rte_vmbus_device *dev)
717 {
718 struct rte_eth_dev *eth_dev;
719 int ret;
720
721 PMD_INIT_FUNC_TRACE();
722
723 eth_dev = rte_eth_dev_allocated(dev->device.name);
724 if (!eth_dev)
725 return -ENODEV;
726
727 ret = eth_hn_dev_uninit(eth_dev);
728 if (ret)
729 return ret;
730
731 eth_dev_vmbus_release(eth_dev);
732 return 0;
733 }
734
735 /* Network device GUID */
736 static const rte_uuid_t hn_net_ids[] = {
737 /* f8615163-df3e-46c5-913f-f2d2f965ed0e */
738 RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL),
739 { 0 }
740 };
741
742 static struct rte_vmbus_driver rte_netvsc_pmd = {
743 .id_table = hn_net_ids,
744 .probe = eth_hn_probe,
745 .remove = eth_hn_remove,
746 };
747
748 RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd);
749 RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic");
750
751 RTE_INIT(hn_init_log);
752 static void
753 hn_init_log(void)
754 {
755 hn_logtype_init = rte_log_register("pmd.net.netvsc.init");
756 if (hn_logtype_init >= 0)
757 rte_log_set_level(hn_logtype_init, RTE_LOG_NOTICE);
758 hn_logtype_driver = rte_log_register("pmd.net.netvsc.driver");
759 if (hn_logtype_driver >= 0)
760 rte_log_set_level(hn_logtype_driver, RTE_LOG_NOTICE);
761 }
Ceph