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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_devargs.h>
18 #include <rte_malloc.h>
19 #include <rte_kvargs.h>
20 #include <rte_atomic.h>
21 #include <rte_branch_prediction.h>
22 #include <rte_ether.h>
23 #include <rte_ethdev_driver.h>
24 #include <rte_cycles.h>
25 #include <rte_errno.h>
26 #include <rte_memory.h>
27 #include <rte_eal.h>
28 #include <rte_dev.h>
29 #include <rte_bus_vmbus.h>
30
31 #include "hn_logs.h"
32 #include "hn_var.h"
33 #include "hn_rndis.h"
34 #include "hn_nvs.h"
35 #include "ndis.h"
36
37 #define HN_TX_OFFLOAD_CAPS (DEV_TX_OFFLOAD_IPV4_CKSUM | \
38 DEV_TX_OFFLOAD_TCP_CKSUM | \
39 DEV_TX_OFFLOAD_UDP_CKSUM | \
40 DEV_TX_OFFLOAD_TCP_TSO | \
41 DEV_TX_OFFLOAD_MULTI_SEGS | \
42 DEV_TX_OFFLOAD_VLAN_INSERT)
43
44 #define HN_RX_OFFLOAD_CAPS (DEV_RX_OFFLOAD_CHECKSUM | \
45 DEV_RX_OFFLOAD_VLAN_STRIP | \
46 DEV_RX_OFFLOAD_RSS_HASH)
47
48 int hn_logtype_init;
49 int hn_logtype_driver;
50
51 struct hn_xstats_name_off {
52 char name[RTE_ETH_XSTATS_NAME_SIZE];
53 unsigned int offset;
54 };
55
56 static const struct hn_xstats_name_off hn_stat_strings[] = {
57 { "good_packets", offsetof(struct hn_stats, packets) },
58 { "good_bytes", offsetof(struct hn_stats, bytes) },
59 { "errors", offsetof(struct hn_stats, errors) },
60 { "ring full", offsetof(struct hn_stats, ring_full) },
61 { "multicast_packets", offsetof(struct hn_stats, multicast) },
62 { "broadcast_packets", offsetof(struct hn_stats, broadcast) },
63 { "undersize_packets", offsetof(struct hn_stats, size_bins[0]) },
64 { "size_64_packets", offsetof(struct hn_stats, size_bins[1]) },
65 { "size_65_127_packets", offsetof(struct hn_stats, size_bins[2]) },
66 { "size_128_255_packets", offsetof(struct hn_stats, size_bins[3]) },
67 { "size_256_511_packets", offsetof(struct hn_stats, size_bins[4]) },
68 { "size_512_1023_packets", offsetof(struct hn_stats, size_bins[5]) },
69 { "size_1024_1518_packets", offsetof(struct hn_stats, size_bins[6]) },
70 { "size_1519_max_packets", offsetof(struct hn_stats, size_bins[7]) },
71 };
72
73 /* The default RSS key.
74 * This value is the same as MLX5 so that flows will be
75 * received on same path for both VF and synthetic NIC.
76 */
77 static const uint8_t rss_default_key[NDIS_HASH_KEYSIZE_TOEPLITZ] = {
78 0x2c, 0xc6, 0x81, 0xd1, 0x5b, 0xdb, 0xf4, 0xf7,
79 0xfc, 0xa2, 0x83, 0x19, 0xdb, 0x1a, 0x3e, 0x94,
80 0x6b, 0x9e, 0x38, 0xd9, 0x2c, 0x9c, 0x03, 0xd1,
81 0xad, 0x99, 0x44, 0xa7, 0xd9, 0x56, 0x3d, 0x59,
82 0x06, 0x3c, 0x25, 0xf3, 0xfc, 0x1f, 0xdc, 0x2a,
83 };
84
85 static struct rte_eth_dev *
86 eth_dev_vmbus_allocate(struct rte_vmbus_device *dev, size_t private_data_size)
87 {
88 struct rte_eth_dev *eth_dev;
89 const char *name;
90
91 if (!dev)
92 return NULL;
93
94 name = dev->device.name;
95
96 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
97 eth_dev = rte_eth_dev_allocate(name);
98 if (!eth_dev) {
99 PMD_DRV_LOG(NOTICE, "can not allocate rte ethdev");
100 return NULL;
101 }
102
103 if (private_data_size) {
104 eth_dev->data->dev_private =
105 rte_zmalloc_socket(name, private_data_size,
106 RTE_CACHE_LINE_SIZE, dev->device.numa_node);
107 if (!eth_dev->data->dev_private) {
108 PMD_DRV_LOG(NOTICE, "can not allocate driver data");
109 rte_eth_dev_release_port(eth_dev);
110 return NULL;
111 }
112 }
113 } else {
114 eth_dev = rte_eth_dev_attach_secondary(name);
115 if (!eth_dev) {
116 PMD_DRV_LOG(NOTICE, "can not attach secondary");
117 return NULL;
118 }
119 }
120
121 eth_dev->device = &dev->device;
122
123 /* interrupt is simulated */
124 dev->intr_handle.type = RTE_INTR_HANDLE_EXT;
125 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
126 eth_dev->intr_handle = &dev->intr_handle;
127
128 /* allow ethdev to remove on close */
129 eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
130
131 return eth_dev;
132 }
133
134 static void
135 eth_dev_vmbus_release(struct rte_eth_dev *eth_dev)
136 {
137 /* free ether device */
138 rte_eth_dev_release_port(eth_dev);
139
140 eth_dev->device = NULL;
141 eth_dev->intr_handle = NULL;
142 }
143
144 /* handle "latency=X" from devargs */
145 static int hn_set_latency(const char *key, const char *value, void *opaque)
146 {
147 struct hn_data *hv = opaque;
148 char *endp = NULL;
149 unsigned long lat;
150
151 errno = 0;
152 lat = strtoul(value, &endp, 0);
153
154 if (*value == '\0' || *endp != '\0') {
155 PMD_DRV_LOG(ERR, "invalid parameter %s=%s", key, value);
156 return -EINVAL;
157 }
158
159 PMD_DRV_LOG(DEBUG, "set latency %lu usec", lat);
160
161 hv->latency = lat * 1000; /* usec to nsec */
162 return 0;
163 }
164
165 /* Parse device arguments */
166 static int hn_parse_args(const struct rte_eth_dev *dev)
167 {
168 struct hn_data *hv = dev->data->dev_private;
169 struct rte_devargs *devargs = dev->device->devargs;
170 static const char * const valid_keys[] = {
171 "latency",
172 NULL
173 };
174 struct rte_kvargs *kvlist;
175 int ret;
176
177 if (!devargs)
178 return 0;
179
180 PMD_INIT_LOG(DEBUG, "device args %s %s",
181 devargs->name, devargs->args);
182
183 kvlist = rte_kvargs_parse(devargs->args, valid_keys);
184 if (!kvlist) {
185 PMD_DRV_LOG(NOTICE, "invalid parameters");
186 return -EINVAL;
187 }
188
189 ret = rte_kvargs_process(kvlist, "latency", hn_set_latency, hv);
190 if (ret)
191 PMD_DRV_LOG(ERR, "Unable to process latency arg\n");
192
193 rte_kvargs_free(kvlist);
194 return ret;
195 }
196
197 /* Update link status.
198 * Note: the DPDK definition of "wait_to_complete"
199 * means block this call until link is up.
200 * which is not worth supporting.
201 */
202 int
203 hn_dev_link_update(struct rte_eth_dev *dev,
204 int wait_to_complete)
205 {
206 struct hn_data *hv = dev->data->dev_private;
207 struct rte_eth_link link, old;
208 int error;
209
210 old = dev->data->dev_link;
211
212 error = hn_rndis_get_linkstatus(hv);
213 if (error)
214 return error;
215
216 hn_rndis_get_linkspeed(hv);
217
218 hn_vf_link_update(dev, wait_to_complete);
219
220 link = (struct rte_eth_link) {
221 .link_duplex = ETH_LINK_FULL_DUPLEX,
222 .link_autoneg = ETH_LINK_SPEED_FIXED,
223 .link_speed = hv->link_speed / 10000,
224 };
225
226 if (hv->link_status == NDIS_MEDIA_STATE_CONNECTED)
227 link.link_status = ETH_LINK_UP;
228 else
229 link.link_status = ETH_LINK_DOWN;
230
231 if (old.link_status == link.link_status)
232 return 0;
233
234 PMD_INIT_LOG(DEBUG, "Port %d is %s", dev->data->port_id,
235 (link.link_status == ETH_LINK_UP) ? "up" : "down");
236
237 return rte_eth_linkstatus_set(dev, &link);
238 }
239
240 static int hn_dev_info_get(struct rte_eth_dev *dev,
241 struct rte_eth_dev_info *dev_info)
242 {
243 struct hn_data *hv = dev->data->dev_private;
244 int rc;
245
246 dev_info->speed_capa = ETH_LINK_SPEED_10G;
247 dev_info->min_rx_bufsize = HN_MIN_RX_BUF_SIZE;
248 dev_info->max_rx_pktlen = HN_MAX_XFER_LEN;
249 dev_info->max_mac_addrs = 1;
250
251 dev_info->hash_key_size = NDIS_HASH_KEYSIZE_TOEPLITZ;
252 dev_info->flow_type_rss_offloads = hv->rss_offloads;
253 dev_info->reta_size = ETH_RSS_RETA_SIZE_128;
254
255 dev_info->max_rx_queues = hv->max_queues;
256 dev_info->max_tx_queues = hv->max_queues;
257
258 dev_info->tx_desc_lim.nb_min = 1;
259 dev_info->tx_desc_lim.nb_max = 4096;
260
261 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
262 return 0;
263
264 /* fills in rx and tx offload capability */
265 rc = hn_rndis_get_offload(hv, dev_info);
266 if (rc != 0)
267 return rc;
268
269 /* merges the offload and queues of vf */
270 return hn_vf_info_get(hv, dev_info);
271 }
272
273 static int hn_rss_reta_update(struct rte_eth_dev *dev,
274 struct rte_eth_rss_reta_entry64 *reta_conf,
275 uint16_t reta_size)
276 {
277 struct hn_data *hv = dev->data->dev_private;
278 unsigned int i;
279 int err;
280
281 PMD_INIT_FUNC_TRACE();
282
283 if (reta_size != NDIS_HASH_INDCNT) {
284 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS");
285 return -EINVAL;
286 }
287
288 for (i = 0; i < NDIS_HASH_INDCNT; i++) {
289 uint16_t idx = i / RTE_RETA_GROUP_SIZE;
290 uint16_t shift = i % RTE_RETA_GROUP_SIZE;
291 uint64_t mask = (uint64_t)1 << shift;
292
293 if (reta_conf[idx].mask & mask)
294 hv->rss_ind[i] = reta_conf[idx].reta[shift];
295 }
296
297 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE);
298 if (err) {
299 PMD_DRV_LOG(NOTICE,
300 "rss disable failed");
301 return err;
302 }
303
304 err = hn_rndis_conf_rss(hv, 0);
305 if (err) {
306 PMD_DRV_LOG(NOTICE,
307 "reta reconfig failed");
308 return err;
309 }
310
311 return hn_vf_reta_hash_update(dev, reta_conf, reta_size);
312 }
313
314 static int hn_rss_reta_query(struct rte_eth_dev *dev,
315 struct rte_eth_rss_reta_entry64 *reta_conf,
316 uint16_t reta_size)
317 {
318 struct hn_data *hv = dev->data->dev_private;
319 unsigned int i;
320
321 PMD_INIT_FUNC_TRACE();
322
323 if (reta_size != NDIS_HASH_INDCNT) {
324 PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS");
325 return -EINVAL;
326 }
327
328 for (i = 0; i < NDIS_HASH_INDCNT; i++) {
329 uint16_t idx = i / RTE_RETA_GROUP_SIZE;
330 uint16_t shift = i % RTE_RETA_GROUP_SIZE;
331 uint64_t mask = (uint64_t)1 << shift;
332
333 if (reta_conf[idx].mask & mask)
334 reta_conf[idx].reta[shift] = hv->rss_ind[i];
335 }
336 return 0;
337 }
338
339 static void hn_rss_hash_init(struct hn_data *hv,
340 const struct rte_eth_rss_conf *rss_conf)
341 {
342 /* Convert from DPDK RSS hash flags to NDIS hash flags */
343 hv->rss_hash = NDIS_HASH_FUNCTION_TOEPLITZ;
344
345 if (rss_conf->rss_hf & ETH_RSS_IPV4)
346 hv->rss_hash |= NDIS_HASH_IPV4;
347 if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
348 hv->rss_hash |= NDIS_HASH_TCP_IPV4;
349 if (rss_conf->rss_hf & ETH_RSS_IPV6)
350 hv->rss_hash |= NDIS_HASH_IPV6;
351 if (rss_conf->rss_hf & ETH_RSS_IPV6_EX)
352 hv->rss_hash |= NDIS_HASH_IPV6_EX;
353 if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP)
354 hv->rss_hash |= NDIS_HASH_TCP_IPV6;
355 if (rss_conf->rss_hf & ETH_RSS_IPV6_TCP_EX)
356 hv->rss_hash |= NDIS_HASH_TCP_IPV6_EX;
357
358 memcpy(hv->rss_key, rss_conf->rss_key ? : rss_default_key,
359 NDIS_HASH_KEYSIZE_TOEPLITZ);
360 }
361
362 static int hn_rss_hash_update(struct rte_eth_dev *dev,
363 struct rte_eth_rss_conf *rss_conf)
364 {
365 struct hn_data *hv = dev->data->dev_private;
366 int err;
367
368 PMD_INIT_FUNC_TRACE();
369
370 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE);
371 if (err) {
372 PMD_DRV_LOG(NOTICE,
373 "rss disable failed");
374 return err;
375 }
376
377 hn_rss_hash_init(hv, rss_conf);
378
379 if (rss_conf->rss_hf != 0) {
380 err = hn_rndis_conf_rss(hv, 0);
381 if (err) {
382 PMD_DRV_LOG(NOTICE,
383 "rss reconfig failed (RSS disabled)");
384 return err;
385 }
386 }
387
388 return hn_vf_rss_hash_update(dev, rss_conf);
389 }
390
391 static int hn_rss_hash_conf_get(struct rte_eth_dev *dev,
392 struct rte_eth_rss_conf *rss_conf)
393 {
394 struct hn_data *hv = dev->data->dev_private;
395
396 PMD_INIT_FUNC_TRACE();
397
398 if (hv->ndis_ver < NDIS_VERSION_6_20) {
399 PMD_DRV_LOG(DEBUG, "RSS not supported on this host");
400 return -EOPNOTSUPP;
401 }
402
403 rss_conf->rss_key_len = NDIS_HASH_KEYSIZE_TOEPLITZ;
404 if (rss_conf->rss_key)
405 memcpy(rss_conf->rss_key, hv->rss_key,
406 NDIS_HASH_KEYSIZE_TOEPLITZ);
407
408 rss_conf->rss_hf = 0;
409 if (hv->rss_hash & NDIS_HASH_IPV4)
410 rss_conf->rss_hf |= ETH_RSS_IPV4;
411
412 if (hv->rss_hash & NDIS_HASH_TCP_IPV4)
413 rss_conf->rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP;
414
415 if (hv->rss_hash & NDIS_HASH_IPV6)
416 rss_conf->rss_hf |= ETH_RSS_IPV6;
417
418 if (hv->rss_hash & NDIS_HASH_IPV6_EX)
419 rss_conf->rss_hf |= ETH_RSS_IPV6_EX;
420
421 if (hv->rss_hash & NDIS_HASH_TCP_IPV6)
422 rss_conf->rss_hf |= ETH_RSS_NONFRAG_IPV6_TCP;
423
424 if (hv->rss_hash & NDIS_HASH_TCP_IPV6_EX)
425 rss_conf->rss_hf |= ETH_RSS_IPV6_TCP_EX;
426
427 return 0;
428 }
429
430 static int
431 hn_dev_promiscuous_enable(struct rte_eth_dev *dev)
432 {
433 struct hn_data *hv = dev->data->dev_private;
434
435 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_PROMISCUOUS);
436 return hn_vf_promiscuous_enable(dev);
437 }
438
439 static int
440 hn_dev_promiscuous_disable(struct rte_eth_dev *dev)
441 {
442 struct hn_data *hv = dev->data->dev_private;
443 uint32_t filter;
444
445 filter = NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST;
446 if (dev->data->all_multicast)
447 filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
448 hn_rndis_set_rxfilter(hv, filter);
449 return hn_vf_promiscuous_disable(dev);
450 }
451
452 static int
453 hn_dev_allmulticast_enable(struct rte_eth_dev *dev)
454 {
455 struct hn_data *hv = dev->data->dev_private;
456
457 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED |
458 NDIS_PACKET_TYPE_ALL_MULTICAST |
459 NDIS_PACKET_TYPE_BROADCAST);
460 return hn_vf_allmulticast_enable(dev);
461 }
462
463 static int
464 hn_dev_allmulticast_disable(struct rte_eth_dev *dev)
465 {
466 struct hn_data *hv = dev->data->dev_private;
467
468 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED |
469 NDIS_PACKET_TYPE_BROADCAST);
470 return hn_vf_allmulticast_disable(dev);
471 }
472
473 static int
474 hn_dev_mc_addr_list(struct rte_eth_dev *dev,
475 struct rte_ether_addr *mc_addr_set,
476 uint32_t nb_mc_addr)
477 {
478 /* No filtering on the synthetic path, but can do it on VF */
479 return hn_vf_mc_addr_list(dev, mc_addr_set, nb_mc_addr);
480 }
481
482 /* Setup shared rx/tx queue data */
483 static int hn_subchan_configure(struct hn_data *hv,
484 uint32_t subchan)
485 {
486 struct vmbus_channel *primary = hn_primary_chan(hv);
487 int err;
488 unsigned int retry = 0;
489
490 PMD_DRV_LOG(DEBUG,
491 "open %u subchannels", subchan);
492
493 /* Send create sub channels command */
494 err = hn_nvs_alloc_subchans(hv, &subchan);
495 if (err)
496 return err;
497
498 while (subchan > 0) {
499 struct vmbus_channel *new_sc;
500 uint16_t chn_index;
501
502 err = rte_vmbus_subchan_open(primary, &new_sc);
503 if (err == -ENOENT && ++retry < 1000) {
504 /* This can happen if not ready yet */
505 rte_delay_ms(10);
506 continue;
507 }
508
509 if (err) {
510 PMD_DRV_LOG(ERR,
511 "open subchannel failed: %d", err);
512 return err;
513 }
514
515 rte_vmbus_set_latency(hv->vmbus, new_sc, hv->latency);
516
517 retry = 0;
518 chn_index = rte_vmbus_sub_channel_index(new_sc);
519 if (chn_index == 0 || chn_index > hv->max_queues) {
520 PMD_DRV_LOG(ERR,
521 "Invalid subchannel offermsg channel %u",
522 chn_index);
523 return -EIO;
524 }
525
526 PMD_DRV_LOG(DEBUG, "new sub channel %u", chn_index);
527 hv->channels[chn_index] = new_sc;
528 --subchan;
529 }
530
531 return err;
532 }
533
534 static int hn_dev_configure(struct rte_eth_dev *dev)
535 {
536 struct rte_eth_conf *dev_conf = &dev->data->dev_conf;
537 struct rte_eth_rss_conf *rss_conf = &dev_conf->rx_adv_conf.rss_conf;
538 const struct rte_eth_rxmode *rxmode = &dev_conf->rxmode;
539 const struct rte_eth_txmode *txmode = &dev_conf->txmode;
540 struct hn_data *hv = dev->data->dev_private;
541 uint64_t unsupported;
542 int i, err, subchan;
543
544 PMD_INIT_FUNC_TRACE();
545
546 if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
547 dev_conf->rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
548
549 unsupported = txmode->offloads & ~HN_TX_OFFLOAD_CAPS;
550 if (unsupported) {
551 PMD_DRV_LOG(NOTICE,
552 "unsupported TX offload: %#" PRIx64,
553 unsupported);
554 return -EINVAL;
555 }
556
557 unsupported = rxmode->offloads & ~HN_RX_OFFLOAD_CAPS;
558 if (unsupported) {
559 PMD_DRV_LOG(NOTICE,
560 "unsupported RX offload: %#" PRIx64,
561 rxmode->offloads);
562 return -EINVAL;
563 }
564
565 hv->vlan_strip = !!(rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP);
566
567 err = hn_rndis_conf_offload(hv, txmode->offloads,
568 rxmode->offloads);
569 if (err) {
570 PMD_DRV_LOG(NOTICE,
571 "offload configure failed");
572 return err;
573 }
574
575 hv->num_queues = RTE_MAX(dev->data->nb_rx_queues,
576 dev->data->nb_tx_queues);
577
578 for (i = 0; i < NDIS_HASH_INDCNT; i++)
579 hv->rss_ind[i] = i % dev->data->nb_rx_queues;
580
581 hn_rss_hash_init(hv, rss_conf);
582
583 subchan = hv->num_queues - 1;
584 if (subchan > 0) {
585 err = hn_subchan_configure(hv, subchan);
586 if (err) {
587 PMD_DRV_LOG(NOTICE,
588 "subchannel configuration failed");
589 return err;
590 }
591
592 err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE);
593 if (err) {
594 PMD_DRV_LOG(NOTICE,
595 "rss disable failed");
596 return err;
597 }
598
599 if (rss_conf->rss_hf != 0) {
600 err = hn_rndis_conf_rss(hv, 0);
601 if (err) {
602 PMD_DRV_LOG(NOTICE,
603 "initial RSS config failed");
604 return err;
605 }
606 }
607 }
608
609 return hn_vf_configure(dev, dev_conf);
610 }
611
612 static int hn_dev_stats_get(struct rte_eth_dev *dev,
613 struct rte_eth_stats *stats)
614 {
615 unsigned int i;
616
617 hn_vf_stats_get(dev, stats);
618
619 for (i = 0; i < dev->data->nb_tx_queues; i++) {
620 const struct hn_tx_queue *txq = dev->data->tx_queues[i];
621
622 if (!txq)
623 continue;
624
625 stats->opackets += txq->stats.packets;
626 stats->obytes += txq->stats.bytes;
627 stats->oerrors += txq->stats.errors;
628
629 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
630 stats->q_opackets[i] = txq->stats.packets;
631 stats->q_obytes[i] = txq->stats.bytes;
632 }
633 }
634
635 for (i = 0; i < dev->data->nb_rx_queues; i++) {
636 const struct hn_rx_queue *rxq = dev->data->rx_queues[i];
637
638 if (!rxq)
639 continue;
640
641 stats->ipackets += rxq->stats.packets;
642 stats->ibytes += rxq->stats.bytes;
643 stats->ierrors += rxq->stats.errors;
644 stats->imissed += rxq->stats.ring_full;
645
646 if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
647 stats->q_ipackets[i] = rxq->stats.packets;
648 stats->q_ibytes[i] = rxq->stats.bytes;
649 }
650 }
651
652 stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed;
653 return 0;
654 }
655
656 static int
657 hn_dev_stats_reset(struct rte_eth_dev *dev)
658 {
659 unsigned int i;
660
661 PMD_INIT_FUNC_TRACE();
662
663 for (i = 0; i < dev->data->nb_tx_queues; i++) {
664 struct hn_tx_queue *txq = dev->data->tx_queues[i];
665
666 if (!txq)
667 continue;
668 memset(&txq->stats, 0, sizeof(struct hn_stats));
669 }
670
671 for (i = 0; i < dev->data->nb_rx_queues; i++) {
672 struct hn_rx_queue *rxq = dev->data->rx_queues[i];
673
674 if (!rxq)
675 continue;
676
677 memset(&rxq->stats, 0, sizeof(struct hn_stats));
678 }
679
680 return 0;
681 }
682
683 static int
684 hn_dev_xstats_reset(struct rte_eth_dev *dev)
685 {
686 int ret;
687
688 ret = hn_dev_stats_reset(dev);
689 if (ret != 0)
690 return 0;
691
692 return hn_vf_xstats_reset(dev);
693 }
694
695 static int
696 hn_dev_xstats_count(struct rte_eth_dev *dev)
697 {
698 int ret, count;
699
700 count = dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings);
701 count += dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings);
702
703 ret = hn_vf_xstats_get_names(dev, NULL, 0);
704 if (ret < 0)
705 return ret;
706
707 return count + ret;
708 }
709
710 static int
711 hn_dev_xstats_get_names(struct rte_eth_dev *dev,
712 struct rte_eth_xstat_name *xstats_names,
713 unsigned int limit)
714 {
715 unsigned int i, t, count = 0;
716 int ret;
717
718 if (!xstats_names)
719 return hn_dev_xstats_count(dev);
720
721 /* Note: limit checked in rte_eth_xstats_names() */
722 for (i = 0; i < dev->data->nb_tx_queues; i++) {
723 const struct hn_tx_queue *txq = dev->data->tx_queues[i];
724
725 if (!txq)
726 continue;
727
728 if (count >= limit)
729 break;
730
731 for (t = 0; t < RTE_DIM(hn_stat_strings); t++)
732 snprintf(xstats_names[count++].name,
733 RTE_ETH_XSTATS_NAME_SIZE,
734 "tx_q%u_%s", i, hn_stat_strings[t].name);
735 }
736
737 for (i = 0; i < dev->data->nb_rx_queues; i++) {
738 const struct hn_rx_queue *rxq = dev->data->rx_queues[i];
739
740 if (!rxq)
741 continue;
742
743 if (count >= limit)
744 break;
745
746 for (t = 0; t < RTE_DIM(hn_stat_strings); t++)
747 snprintf(xstats_names[count++].name,
748 RTE_ETH_XSTATS_NAME_SIZE,
749 "rx_q%u_%s", i,
750 hn_stat_strings[t].name);
751 }
752
753 ret = hn_vf_xstats_get_names(dev, xstats_names + count,
754 limit - count);
755 if (ret < 0)
756 return ret;
757
758 return count + ret;
759 }
760
761 static int
762 hn_dev_xstats_get(struct rte_eth_dev *dev,
763 struct rte_eth_xstat *xstats,
764 unsigned int n)
765 {
766 unsigned int i, t, count = 0;
767 const unsigned int nstats = hn_dev_xstats_count(dev);
768 const char *stats;
769 int ret;
770
771 PMD_INIT_FUNC_TRACE();
772
773 if (n < nstats)
774 return nstats;
775
776 for (i = 0; i < dev->data->nb_tx_queues; i++) {
777 const struct hn_tx_queue *txq = dev->data->tx_queues[i];
778
779 if (!txq)
780 continue;
781
782 stats = (const char *)&txq->stats;
783 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) {
784 xstats[count].id = count;
785 xstats[count].value = *(const uint64_t *)
786 (stats + hn_stat_strings[t].offset);
787 }
788 }
789
790 for (i = 0; i < dev->data->nb_rx_queues; i++) {
791 const struct hn_rx_queue *rxq = dev->data->rx_queues[i];
792
793 if (!rxq)
794 continue;
795
796 stats = (const char *)&rxq->stats;
797 for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) {
798 xstats[count].id = count;
799 xstats[count].value = *(const uint64_t *)
800 (stats + hn_stat_strings[t].offset);
801 }
802 }
803
804 ret = hn_vf_xstats_get(dev, xstats, count, n);
805 if (ret < 0)
806 return ret;
807
808 return count + ret;
809 }
810
811 static int
812 hn_dev_start(struct rte_eth_dev *dev)
813 {
814 struct hn_data *hv = dev->data->dev_private;
815 int error;
816
817 PMD_INIT_FUNC_TRACE();
818
819 error = hn_rndis_set_rxfilter(hv,
820 NDIS_PACKET_TYPE_BROADCAST |
821 NDIS_PACKET_TYPE_ALL_MULTICAST |
822 NDIS_PACKET_TYPE_DIRECTED);
823 if (error)
824 return error;
825
826 error = hn_vf_start(dev);
827 if (error)
828 hn_rndis_set_rxfilter(hv, 0);
829
830 /* Initialize Link state */
831 if (error == 0)
832 hn_dev_link_update(dev, 0);
833
834 return error;
835 }
836
837 static void
838 hn_dev_stop(struct rte_eth_dev *dev)
839 {
840 struct hn_data *hv = dev->data->dev_private;
841
842 PMD_INIT_FUNC_TRACE();
843
844 hn_rndis_set_rxfilter(hv, 0);
845 hn_vf_stop(dev);
846 }
847
848 static void
849 hn_dev_close(struct rte_eth_dev *dev)
850 {
851 PMD_INIT_FUNC_TRACE();
852
853 hn_vf_close(dev);
854 hn_dev_free_queues(dev);
855 }
856
857 static const struct eth_dev_ops hn_eth_dev_ops = {
858 .dev_configure = hn_dev_configure,
859 .dev_start = hn_dev_start,
860 .dev_stop = hn_dev_stop,
861 .dev_close = hn_dev_close,
862 .dev_infos_get = hn_dev_info_get,
863 .dev_supported_ptypes_get = hn_vf_supported_ptypes,
864 .promiscuous_enable = hn_dev_promiscuous_enable,
865 .promiscuous_disable = hn_dev_promiscuous_disable,
866 .allmulticast_enable = hn_dev_allmulticast_enable,
867 .allmulticast_disable = hn_dev_allmulticast_disable,
868 .set_mc_addr_list = hn_dev_mc_addr_list,
869 .reta_update = hn_rss_reta_update,
870 .reta_query = hn_rss_reta_query,
871 .rss_hash_update = hn_rss_hash_update,
872 .rss_hash_conf_get = hn_rss_hash_conf_get,
873 .tx_queue_setup = hn_dev_tx_queue_setup,
874 .tx_queue_release = hn_dev_tx_queue_release,
875 .tx_done_cleanup = hn_dev_tx_done_cleanup,
876 .rx_queue_setup = hn_dev_rx_queue_setup,
877 .rx_queue_release = hn_dev_rx_queue_release,
878 .link_update = hn_dev_link_update,
879 .stats_get = hn_dev_stats_get,
880 .stats_reset = hn_dev_stats_reset,
881 .xstats_get = hn_dev_xstats_get,
882 .xstats_get_names = hn_dev_xstats_get_names,
883 .xstats_reset = hn_dev_xstats_reset,
884 };
885
886 /*
887 * Setup connection between PMD and kernel.
888 */
889 static int
890 hn_attach(struct hn_data *hv, unsigned int mtu)
891 {
892 int error;
893
894 /* Attach NVS */
895 error = hn_nvs_attach(hv, mtu);
896 if (error)
897 goto failed_nvs;
898
899 /* Attach RNDIS */
900 error = hn_rndis_attach(hv);
901 if (error)
902 goto failed_rndis;
903
904 /*
905 * NOTE:
906 * Under certain conditions on certain versions of Hyper-V,
907 * the RNDIS rxfilter is _not_ zero on the hypervisor side
908 * after the successful RNDIS initialization.
909 */
910 hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE);
911 return 0;
912 failed_rndis:
913 hn_nvs_detach(hv);
914 failed_nvs:
915 return error;
916 }
917
918 static void
919 hn_detach(struct hn_data *hv)
920 {
921 hn_nvs_detach(hv);
922 hn_rndis_detach(hv);
923 }
924
925 static int
926 eth_hn_dev_init(struct rte_eth_dev *eth_dev)
927 {
928 struct hn_data *hv = eth_dev->data->dev_private;
929 struct rte_device *device = eth_dev->device;
930 struct rte_vmbus_device *vmbus;
931 unsigned int rxr_cnt;
932 int err, max_chan;
933
934 PMD_INIT_FUNC_TRACE();
935
936 vmbus = container_of(device, struct rte_vmbus_device, device);
937 eth_dev->dev_ops = &hn_eth_dev_ops;
938 eth_dev->tx_pkt_burst = &hn_xmit_pkts;
939 eth_dev->rx_pkt_burst = &hn_recv_pkts;
940
941 /*
942 * for secondary processes, we don't initialize any further as primary
943 * has already done this work.
944 */
945 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
946 return 0;
947
948 /* Since Hyper-V only supports one MAC address */
949 eth_dev->data->mac_addrs = rte_calloc("hv_mac", HN_MAX_MAC_ADDRS,
950 sizeof(struct rte_ether_addr), 0);
951 if (eth_dev->data->mac_addrs == NULL) {
952 PMD_INIT_LOG(ERR,
953 "Failed to allocate memory store MAC addresses");
954 return -ENOMEM;
955 }
956
957 hv->vmbus = vmbus;
958 hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP];
959 hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP];
960 hv->port_id = eth_dev->data->port_id;
961 hv->latency = HN_CHAN_LATENCY_NS;
962 hv->max_queues = 1;
963 rte_rwlock_init(&hv->vf_lock);
964 hv->vf_port = HN_INVALID_PORT;
965
966 err = hn_parse_args(eth_dev);
967 if (err)
968 return err;
969
970 strlcpy(hv->owner.name, eth_dev->device->name,
971 RTE_ETH_MAX_OWNER_NAME_LEN);
972 err = rte_eth_dev_owner_new(&hv->owner.id);
973 if (err) {
974 PMD_INIT_LOG(ERR, "Can not get owner id");
975 return err;
976 }
977
978 /* Initialize primary channel input for control operations */
979 err = rte_vmbus_chan_open(vmbus, &hv->channels[0]);
980 if (err)
981 return err;
982
983 rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency);
984
985 hv->primary = hn_rx_queue_alloc(hv, 0,
986 eth_dev->device->numa_node);
987
988 if (!hv->primary)
989 return -ENOMEM;
990
991 err = hn_attach(hv, RTE_ETHER_MTU);
992 if (err)
993 goto failed;
994
995 err = hn_chim_init(eth_dev);
996 if (err)
997 goto failed;
998
999 err = hn_rndis_get_eaddr(hv, eth_dev->data->mac_addrs->addr_bytes);
1000 if (err)
1001 goto failed;
1002
1003 /* Multi queue requires later versions of windows server */
1004 if (hv->nvs_ver < NVS_VERSION_5)
1005 return 0;
1006
1007 max_chan = rte_vmbus_max_channels(vmbus);
1008 PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan);
1009 if (max_chan <= 0)
1010 goto failed;
1011
1012 if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0)
1013 rxr_cnt = 1;
1014
1015 hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan);
1016
1017 /* If VF was reported but not added, do it now */
1018 if (hv->vf_present && !hn_vf_attached(hv)) {
1019 PMD_INIT_LOG(DEBUG, "Adding VF device");
1020
1021 err = hn_vf_add(eth_dev, hv);
1022 if (err)
1023 hv->vf_present = 0;
1024 }
1025
1026 return 0;
1027
1028 failed:
1029 PMD_INIT_LOG(NOTICE, "device init failed");
1030
1031 hn_chim_uninit(eth_dev);
1032 hn_detach(hv);
1033 return err;
1034 }
1035
1036 static int
1037 eth_hn_dev_uninit(struct rte_eth_dev *eth_dev)
1038 {
1039 struct hn_data *hv = eth_dev->data->dev_private;
1040 int ret;
1041
1042 PMD_INIT_FUNC_TRACE();
1043
1044 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1045 return 0;
1046
1047 hn_dev_stop(eth_dev);
1048 hn_dev_close(eth_dev);
1049
1050 eth_dev->dev_ops = NULL;
1051 eth_dev->tx_pkt_burst = NULL;
1052 eth_dev->rx_pkt_burst = NULL;
1053
1054 hn_detach(hv);
1055 hn_chim_uninit(eth_dev);
1056 rte_vmbus_chan_close(hv->primary->chan);
1057 rte_free(hv->primary);
1058 ret = rte_eth_dev_owner_delete(hv->owner.id);
1059 if (ret != 0)
1060 return ret;
1061
1062 return 0;
1063 }
1064
1065 static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused,
1066 struct rte_vmbus_device *dev)
1067 {
1068 struct rte_eth_dev *eth_dev;
1069 int ret;
1070
1071 PMD_INIT_FUNC_TRACE();
1072
1073 eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data));
1074 if (!eth_dev)
1075 return -ENOMEM;
1076
1077 ret = eth_hn_dev_init(eth_dev);
1078 if (ret)
1079 eth_dev_vmbus_release(eth_dev);
1080 else
1081 rte_eth_dev_probing_finish(eth_dev);
1082
1083 return ret;
1084 }
1085
1086 static int eth_hn_remove(struct rte_vmbus_device *dev)
1087 {
1088 struct rte_eth_dev *eth_dev;
1089 int ret;
1090
1091 PMD_INIT_FUNC_TRACE();
1092
1093 eth_dev = rte_eth_dev_allocated(dev->device.name);
1094 if (!eth_dev)
1095 return -ENODEV;
1096
1097 ret = eth_hn_dev_uninit(eth_dev);
1098 if (ret)
1099 return ret;
1100
1101 eth_dev_vmbus_release(eth_dev);
1102 return 0;
1103 }
1104
1105 /* Network device GUID */
1106 static const rte_uuid_t hn_net_ids[] = {
1107 /* f8615163-df3e-46c5-913f-f2d2f965ed0e */
1108 RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL),
1109 { 0 }
1110 };
1111
1112 static struct rte_vmbus_driver rte_netvsc_pmd = {
1113 .id_table = hn_net_ids,
1114 .probe = eth_hn_probe,
1115 .remove = eth_hn_remove,
1116 };
1117
1118 RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd);
1119 RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic");
1120
1121 RTE_INIT(hn_init_log)
1122 {
1123 hn_logtype_init = rte_log_register("pmd.net.netvsc.init");
1124 if (hn_logtype_init >= 0)
1125 rte_log_set_level(hn_logtype_init, RTE_LOG_NOTICE);
1126 hn_logtype_driver = rte_log_register("pmd.net.netvsc.driver");
1127 if (hn_logtype_driver >= 0)
1128 rte_log_set_level(hn_logtype_driver, RTE_LOG_NOTICE);
1129 }
Ceph