/* SPDX-License-Identifier: BSD-3-Clause * Copyright(c) 2016-2018 Microsoft Corporation * Copyright(c) 2013-2016 Brocade Communications Systems, Inc. * All rights reserved. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "hn_logs.h" #include "hn_var.h" #include "hn_rndis.h" #include "hn_nvs.h" #include "ndis.h" #define HN_TX_OFFLOAD_CAPS (RTE_ETH_TX_OFFLOAD_IPV4_CKSUM | \ RTE_ETH_TX_OFFLOAD_TCP_CKSUM | \ RTE_ETH_TX_OFFLOAD_UDP_CKSUM | \ RTE_ETH_TX_OFFLOAD_TCP_TSO | \ RTE_ETH_TX_OFFLOAD_MULTI_SEGS | \ RTE_ETH_TX_OFFLOAD_VLAN_INSERT) #define HN_RX_OFFLOAD_CAPS (RTE_ETH_RX_OFFLOAD_CHECKSUM | \ RTE_ETH_RX_OFFLOAD_VLAN_STRIP | \ RTE_ETH_RX_OFFLOAD_RSS_HASH) #define NETVSC_ARG_LATENCY "latency" #define NETVSC_ARG_RXBREAK "rx_copybreak" #define NETVSC_ARG_TXBREAK "tx_copybreak" #define NETVSC_ARG_RX_EXTMBUF_ENABLE "rx_extmbuf_enable" /* The max number of retry when hot adding a VF device */ #define NETVSC_MAX_HOTADD_RETRY 10 struct hn_xstats_name_off { char name[RTE_ETH_XSTATS_NAME_SIZE]; unsigned int offset; }; static const struct hn_xstats_name_off hn_stat_strings[] = { { "good_packets", offsetof(struct hn_stats, packets) }, { "good_bytes", offsetof(struct hn_stats, bytes) }, { "errors", offsetof(struct hn_stats, errors) }, { "ring full", offsetof(struct hn_stats, ring_full) }, { "channel full", offsetof(struct hn_stats, channel_full) }, { "multicast_packets", offsetof(struct hn_stats, multicast) }, { "broadcast_packets", offsetof(struct hn_stats, broadcast) }, { "undersize_packets", offsetof(struct hn_stats, size_bins[0]) }, { "size_64_packets", offsetof(struct hn_stats, size_bins[1]) }, { "size_65_127_packets", offsetof(struct hn_stats, size_bins[2]) }, { "size_128_255_packets", offsetof(struct hn_stats, size_bins[3]) }, { "size_256_511_packets", offsetof(struct hn_stats, size_bins[4]) }, { "size_512_1023_packets", offsetof(struct hn_stats, size_bins[5]) }, { "size_1024_1518_packets", offsetof(struct hn_stats, size_bins[6]) }, { "size_1519_max_packets", offsetof(struct hn_stats, size_bins[7]) }, }; /* The default RSS key. * This value is the same as MLX5 so that flows will be * received on same path for both VF and synthetic NIC. */ static const uint8_t rss_default_key[NDIS_HASH_KEYSIZE_TOEPLITZ] = { 0x2c, 0xc6, 0x81, 0xd1, 0x5b, 0xdb, 0xf4, 0xf7, 0xfc, 0xa2, 0x83, 0x19, 0xdb, 0x1a, 0x3e, 0x94, 0x6b, 0x9e, 0x38, 0xd9, 0x2c, 0x9c, 0x03, 0xd1, 0xad, 0x99, 0x44, 0xa7, 0xd9, 0x56, 0x3d, 0x59, 0x06, 0x3c, 0x25, 0xf3, 0xfc, 0x1f, 0xdc, 0x2a, }; static struct rte_eth_dev * eth_dev_vmbus_allocate(struct rte_vmbus_device *dev, size_t private_data_size) { struct rte_eth_dev *eth_dev; const char *name; if (!dev) return NULL; name = dev->device.name; if (rte_eal_process_type() == RTE_PROC_PRIMARY) { eth_dev = rte_eth_dev_allocate(name); if (!eth_dev) { PMD_DRV_LOG(NOTICE, "can not allocate rte ethdev"); return NULL; } if (private_data_size) { eth_dev->data->dev_private = rte_zmalloc_socket(name, private_data_size, RTE_CACHE_LINE_SIZE, dev->device.numa_node); if (!eth_dev->data->dev_private) { PMD_DRV_LOG(NOTICE, "can not allocate driver data"); rte_eth_dev_release_port(eth_dev); return NULL; } } } else { eth_dev = rte_eth_dev_attach_secondary(name); if (!eth_dev) { PMD_DRV_LOG(NOTICE, "can not attach secondary"); return NULL; } } eth_dev->device = &dev->device; /* interrupt is simulated */ rte_intr_type_set(dev->intr_handle, RTE_INTR_HANDLE_EXT); eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC; eth_dev->intr_handle = dev->intr_handle; return eth_dev; } static void eth_dev_vmbus_release(struct rte_eth_dev *eth_dev) { /* free ether device */ rte_eth_dev_release_port(eth_dev); eth_dev->device = NULL; eth_dev->intr_handle = NULL; } static int hn_set_parameter(const char *key, const char *value, void *opaque) { struct hn_data *hv = opaque; char *endp = NULL; unsigned long v; v = strtoul(value, &endp, 0); if (*value == '\0' || *endp != '\0') { PMD_DRV_LOG(ERR, "invalid parameter %s=%s", key, value); return -EINVAL; } if (!strcmp(key, NETVSC_ARG_LATENCY)) { /* usec to nsec */ hv->latency = v * 1000; PMD_DRV_LOG(DEBUG, "set latency %u usec", hv->latency); } else if (!strcmp(key, NETVSC_ARG_RXBREAK)) { hv->rx_copybreak = v; PMD_DRV_LOG(DEBUG, "rx copy break set to %u", hv->rx_copybreak); } else if (!strcmp(key, NETVSC_ARG_TXBREAK)) { hv->tx_copybreak = v; PMD_DRV_LOG(DEBUG, "tx copy break set to %u", hv->tx_copybreak); } else if (!strcmp(key, NETVSC_ARG_RX_EXTMBUF_ENABLE)) { hv->rx_extmbuf_enable = v; PMD_DRV_LOG(DEBUG, "rx extmbuf enable set to %u", hv->rx_extmbuf_enable); } return 0; } /* Parse device arguments */ static int hn_parse_args(const struct rte_eth_dev *dev) { struct hn_data *hv = dev->data->dev_private; struct rte_devargs *devargs = dev->device->devargs; static const char * const valid_keys[] = { NETVSC_ARG_LATENCY, NETVSC_ARG_RXBREAK, NETVSC_ARG_TXBREAK, NETVSC_ARG_RX_EXTMBUF_ENABLE, NULL }; struct rte_kvargs *kvlist; int ret; if (!devargs) return 0; PMD_INIT_LOG(DEBUG, "device args %s %s", devargs->name, devargs->args); kvlist = rte_kvargs_parse(devargs->args, valid_keys); if (!kvlist) { PMD_DRV_LOG(ERR, "invalid parameters"); return -EINVAL; } ret = rte_kvargs_process(kvlist, NULL, hn_set_parameter, hv); rte_kvargs_free(kvlist); return ret; } /* Update link status. * Note: the DPDK definition of "wait_to_complete" * means block this call until link is up. * which is not worth supporting. */ int hn_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete __rte_unused) { struct hn_data *hv = dev->data->dev_private; struct rte_eth_link link, old; int error; old = dev->data->dev_link; error = hn_rndis_get_linkstatus(hv); if (error) return error; hn_rndis_get_linkspeed(hv); link = (struct rte_eth_link) { .link_duplex = RTE_ETH_LINK_FULL_DUPLEX, .link_autoneg = RTE_ETH_LINK_SPEED_FIXED, .link_speed = hv->link_speed / 10000, }; if (hv->link_status == NDIS_MEDIA_STATE_CONNECTED) link.link_status = RTE_ETH_LINK_UP; else link.link_status = RTE_ETH_LINK_DOWN; if (old.link_status == link.link_status) return 0; PMD_INIT_LOG(DEBUG, "Port %d is %s", dev->data->port_id, (link.link_status == RTE_ETH_LINK_UP) ? "up" : "down"); return rte_eth_linkstatus_set(dev, &link); } static int hn_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) { struct hn_data *hv = dev->data->dev_private; int rc; dev_info->speed_capa = RTE_ETH_LINK_SPEED_10G; dev_info->min_rx_bufsize = HN_MIN_RX_BUF_SIZE; dev_info->max_rx_pktlen = HN_MAX_XFER_LEN; dev_info->max_mac_addrs = 1; dev_info->hash_key_size = NDIS_HASH_KEYSIZE_TOEPLITZ; dev_info->flow_type_rss_offloads = hv->rss_offloads; dev_info->reta_size = RTE_ETH_RSS_RETA_SIZE_128; dev_info->max_rx_queues = hv->max_queues; dev_info->max_tx_queues = hv->max_queues; dev_info->tx_desc_lim.nb_min = 1; dev_info->tx_desc_lim.nb_max = 4096; if (rte_eal_process_type() != RTE_PROC_PRIMARY) return 0; /* fills in rx and tx offload capability */ rc = hn_rndis_get_offload(hv, dev_info); if (rc != 0) return rc; /* merges the offload and queues of vf */ return hn_vf_info_get(hv, dev_info); } static int hn_rss_reta_update(struct rte_eth_dev *dev, struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size) { struct hn_data *hv = dev->data->dev_private; unsigned int i; int err; PMD_INIT_FUNC_TRACE(); if (reta_size != NDIS_HASH_INDCNT) { PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); return -EINVAL; } for (i = 0; i < NDIS_HASH_INDCNT; i++) { uint16_t idx = i / RTE_ETH_RETA_GROUP_SIZE; uint16_t shift = i % RTE_ETH_RETA_GROUP_SIZE; uint64_t mask = (uint64_t)1 << shift; if (reta_conf[idx].mask & mask) hv->rss_ind[i] = reta_conf[idx].reta[shift]; } err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); if (err) { PMD_DRV_LOG(NOTICE, "rss disable failed"); return err; } err = hn_rndis_conf_rss(hv, 0); if (err) { PMD_DRV_LOG(NOTICE, "reta reconfig failed"); return err; } return hn_vf_reta_hash_update(dev, reta_conf, reta_size); } static int hn_rss_reta_query(struct rte_eth_dev *dev, struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size) { struct hn_data *hv = dev->data->dev_private; unsigned int i; PMD_INIT_FUNC_TRACE(); if (reta_size != NDIS_HASH_INDCNT) { PMD_DRV_LOG(ERR, "Hash lookup table size does not match NDIS"); return -EINVAL; } for (i = 0; i < NDIS_HASH_INDCNT; i++) { uint16_t idx = i / RTE_ETH_RETA_GROUP_SIZE; uint16_t shift = i % RTE_ETH_RETA_GROUP_SIZE; uint64_t mask = (uint64_t)1 << shift; if (reta_conf[idx].mask & mask) reta_conf[idx].reta[shift] = hv->rss_ind[i]; } return 0; } static void hn_rss_hash_init(struct hn_data *hv, const struct rte_eth_rss_conf *rss_conf) { /* Convert from DPDK RSS hash flags to NDIS hash flags */ hv->rss_hash = NDIS_HASH_FUNCTION_TOEPLITZ; if (rss_conf->rss_hf & RTE_ETH_RSS_IPV4) hv->rss_hash |= NDIS_HASH_IPV4; if (rss_conf->rss_hf & RTE_ETH_RSS_NONFRAG_IPV4_TCP) hv->rss_hash |= NDIS_HASH_TCP_IPV4; if (rss_conf->rss_hf & RTE_ETH_RSS_IPV6) hv->rss_hash |= NDIS_HASH_IPV6; if (rss_conf->rss_hf & RTE_ETH_RSS_IPV6_EX) hv->rss_hash |= NDIS_HASH_IPV6_EX; if (rss_conf->rss_hf & RTE_ETH_RSS_NONFRAG_IPV6_TCP) hv->rss_hash |= NDIS_HASH_TCP_IPV6; if (rss_conf->rss_hf & RTE_ETH_RSS_IPV6_TCP_EX) hv->rss_hash |= NDIS_HASH_TCP_IPV6_EX; memcpy(hv->rss_key, rss_conf->rss_key ? : rss_default_key, NDIS_HASH_KEYSIZE_TOEPLITZ); } static int hn_rss_hash_update(struct rte_eth_dev *dev, struct rte_eth_rss_conf *rss_conf) { struct hn_data *hv = dev->data->dev_private; int err; PMD_INIT_FUNC_TRACE(); err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); if (err) { PMD_DRV_LOG(NOTICE, "rss disable failed"); return err; } hn_rss_hash_init(hv, rss_conf); if (rss_conf->rss_hf != 0) { err = hn_rndis_conf_rss(hv, 0); if (err) { PMD_DRV_LOG(NOTICE, "rss reconfig failed (RSS disabled)"); return err; } } return hn_vf_rss_hash_update(dev, rss_conf); } static int hn_rss_hash_conf_get(struct rte_eth_dev *dev, struct rte_eth_rss_conf *rss_conf) { struct hn_data *hv = dev->data->dev_private; PMD_INIT_FUNC_TRACE(); if (hv->ndis_ver < NDIS_VERSION_6_20) { PMD_DRV_LOG(DEBUG, "RSS not supported on this host"); return -EOPNOTSUPP; } rss_conf->rss_key_len = NDIS_HASH_KEYSIZE_TOEPLITZ; if (rss_conf->rss_key) memcpy(rss_conf->rss_key, hv->rss_key, NDIS_HASH_KEYSIZE_TOEPLITZ); rss_conf->rss_hf = 0; if (hv->rss_hash & NDIS_HASH_IPV4) rss_conf->rss_hf |= RTE_ETH_RSS_IPV4; if (hv->rss_hash & NDIS_HASH_TCP_IPV4) rss_conf->rss_hf |= RTE_ETH_RSS_NONFRAG_IPV4_TCP; if (hv->rss_hash & NDIS_HASH_IPV6) rss_conf->rss_hf |= RTE_ETH_RSS_IPV6; if (hv->rss_hash & NDIS_HASH_IPV6_EX) rss_conf->rss_hf |= RTE_ETH_RSS_IPV6_EX; if (hv->rss_hash & NDIS_HASH_TCP_IPV6) rss_conf->rss_hf |= RTE_ETH_RSS_NONFRAG_IPV6_TCP; if (hv->rss_hash & NDIS_HASH_TCP_IPV6_EX) rss_conf->rss_hf |= RTE_ETH_RSS_IPV6_TCP_EX; return 0; } static int hn_dev_promiscuous_enable(struct rte_eth_dev *dev) { struct hn_data *hv = dev->data->dev_private; hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_PROMISCUOUS); return hn_vf_promiscuous_enable(dev); } static int hn_dev_promiscuous_disable(struct rte_eth_dev *dev) { struct hn_data *hv = dev->data->dev_private; uint32_t filter; filter = NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST; if (dev->data->all_multicast) filter |= NDIS_PACKET_TYPE_ALL_MULTICAST; hn_rndis_set_rxfilter(hv, filter); return hn_vf_promiscuous_disable(dev); } static int hn_dev_allmulticast_enable(struct rte_eth_dev *dev) { struct hn_data *hv = dev->data->dev_private; hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_ALL_MULTICAST | NDIS_PACKET_TYPE_BROADCAST); return hn_vf_allmulticast_enable(dev); } static int hn_dev_allmulticast_disable(struct rte_eth_dev *dev) { struct hn_data *hv = dev->data->dev_private; hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_DIRECTED | NDIS_PACKET_TYPE_BROADCAST); return hn_vf_allmulticast_disable(dev); } static int hn_dev_mc_addr_list(struct rte_eth_dev *dev, struct rte_ether_addr *mc_addr_set, uint32_t nb_mc_addr) { /* No filtering on the synthetic path, but can do it on VF */ return hn_vf_mc_addr_list(dev, mc_addr_set, nb_mc_addr); } /* Setup shared rx/tx queue data */ static int hn_subchan_configure(struct hn_data *hv, uint32_t subchan) { struct vmbus_channel *primary = hn_primary_chan(hv); int err; unsigned int retry = 0; PMD_DRV_LOG(DEBUG, "open %u subchannels", subchan); /* Send create sub channels command */ err = hn_nvs_alloc_subchans(hv, &subchan); if (err) return err; while (subchan > 0) { struct vmbus_channel *new_sc; uint16_t chn_index; err = rte_vmbus_subchan_open(primary, &new_sc); if (err == -ENOENT && ++retry < 1000) { /* This can happen if not ready yet */ rte_delay_ms(10); continue; } if (err) { PMD_DRV_LOG(ERR, "open subchannel failed: %d", err); return err; } rte_vmbus_set_latency(hv->vmbus, new_sc, hv->latency); retry = 0; chn_index = rte_vmbus_sub_channel_index(new_sc); if (chn_index == 0 || chn_index > hv->max_queues) { PMD_DRV_LOG(ERR, "Invalid subchannel offermsg channel %u", chn_index); return -EIO; } PMD_DRV_LOG(DEBUG, "new sub channel %u", chn_index); hv->channels[chn_index] = new_sc; --subchan; } return err; } static void netvsc_hotplug_retry(void *args) { int ret; struct hn_data *hv = args; struct rte_eth_dev *dev = &rte_eth_devices[hv->port_id]; struct rte_devargs *d = &hv->devargs; char buf[256]; DIR *di; struct dirent *dir; struct ifreq req; struct rte_ether_addr eth_addr; int s; PMD_DRV_LOG(DEBUG, "%s: retry count %d", __func__, hv->eal_hot_plug_retry); if (hv->eal_hot_plug_retry++ > NETVSC_MAX_HOTADD_RETRY) return; snprintf(buf, sizeof(buf), "/sys/bus/pci/devices/%s/net", d->name); di = opendir(buf); if (!di) { PMD_DRV_LOG(DEBUG, "%s: can't open directory %s, " "retrying in 1 second", __func__, buf); goto retry; } while ((dir = readdir(di))) { /* Skip . and .. directories */ if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, "..")) continue; /* trying to get mac address if this is a network device*/ s = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); if (s == -1) { PMD_DRV_LOG(ERR, "Failed to create socket errno %d", errno); break; } strlcpy(req.ifr_name, dir->d_name, sizeof(req.ifr_name)); ret = ioctl(s, SIOCGIFHWADDR, &req); close(s); if (ret == -1) { PMD_DRV_LOG(ERR, "Failed to send SIOCGIFHWADDR for device %s", dir->d_name); break; } if (req.ifr_hwaddr.sa_family != ARPHRD_ETHER) { closedir(di); return; } memcpy(eth_addr.addr_bytes, req.ifr_hwaddr.sa_data, RTE_DIM(eth_addr.addr_bytes)); if (rte_is_same_ether_addr(ð_addr, dev->data->mac_addrs)) { PMD_DRV_LOG(NOTICE, "Found matching MAC address, adding device %s network name %s", d->name, dir->d_name); ret = rte_eal_hotplug_add(d->bus->name, d->name, d->args); if (ret) { PMD_DRV_LOG(ERR, "Failed to add PCI device %s", d->name); break; } } /* When the code reaches here, we either have already added * the device, or its MAC address did not match. */ closedir(di); return; } closedir(di); retry: /* The device is still being initialized, retry after 1 second */ rte_eal_alarm_set(1000000, netvsc_hotplug_retry, hv); } static void netvsc_hotadd_callback(const char *device_name, enum rte_dev_event_type type, void *arg) { struct hn_data *hv = arg; struct rte_devargs *d = &hv->devargs; int ret; PMD_DRV_LOG(INFO, "Device notification type=%d device_name=%s", type, device_name); switch (type) { case RTE_DEV_EVENT_ADD: /* if we already has a VF, don't check on hot add */ if (hv->vf_ctx.vf_state > vf_removed) break; ret = rte_devargs_parse(d, device_name); if (ret) { PMD_DRV_LOG(ERR, "devargs parsing failed ret=%d", ret); return; } if (!strcmp(d->bus->name, "pci")) { /* Start the process of figuring out if this * PCI device is a VF device */ hv->eal_hot_plug_retry = 0; rte_eal_alarm_set(1000000, netvsc_hotplug_retry, hv); } /* We will switch to VF on RDNIS configure message * sent from VSP */ break; default: break; } } static int hn_dev_configure(struct rte_eth_dev *dev) { struct rte_eth_conf *dev_conf = &dev->data->dev_conf; struct rte_eth_rss_conf *rss_conf = &dev_conf->rx_adv_conf.rss_conf; const struct rte_eth_rxmode *rxmode = &dev_conf->rxmode; const struct rte_eth_txmode *txmode = &dev_conf->txmode; struct hn_data *hv = dev->data->dev_private; uint64_t unsupported; int i, err, subchan; PMD_INIT_FUNC_TRACE(); if (dev_conf->rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) dev_conf->rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH; unsupported = txmode->offloads & ~HN_TX_OFFLOAD_CAPS; if (unsupported) { PMD_DRV_LOG(NOTICE, "unsupported TX offload: %#" PRIx64, unsupported); return -EINVAL; } unsupported = rxmode->offloads & ~HN_RX_OFFLOAD_CAPS; if (unsupported) { PMD_DRV_LOG(NOTICE, "unsupported RX offload: %#" PRIx64, rxmode->offloads); return -EINVAL; } hv->vlan_strip = !!(rxmode->offloads & RTE_ETH_RX_OFFLOAD_VLAN_STRIP); err = hn_rndis_conf_offload(hv, txmode->offloads, rxmode->offloads); if (err) { PMD_DRV_LOG(NOTICE, "offload configure failed"); return err; } hv->num_queues = RTE_MAX(dev->data->nb_rx_queues, dev->data->nb_tx_queues); for (i = 0; i < NDIS_HASH_INDCNT; i++) hv->rss_ind[i] = i % dev->data->nb_rx_queues; hn_rss_hash_init(hv, rss_conf); subchan = hv->num_queues - 1; if (subchan > 0) { err = hn_subchan_configure(hv, subchan); if (err) { PMD_DRV_LOG(NOTICE, "subchannel configuration failed"); return err; } err = hn_rndis_conf_rss(hv, NDIS_RSS_FLAG_DISABLE); if (err) { PMD_DRV_LOG(NOTICE, "rss disable failed"); return err; } if (rss_conf->rss_hf != 0) { err = hn_rndis_conf_rss(hv, 0); if (err) { PMD_DRV_LOG(NOTICE, "initial RSS config failed"); return err; } } } return hn_vf_configure_locked(dev, dev_conf); } static int hn_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) { unsigned int i; hn_vf_stats_get(dev, stats); for (i = 0; i < dev->data->nb_tx_queues; i++) { const struct hn_tx_queue *txq = dev->data->tx_queues[i]; if (!txq) continue; stats->opackets += txq->stats.packets; stats->obytes += txq->stats.bytes; stats->oerrors += txq->stats.errors; if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { stats->q_opackets[i] = txq->stats.packets; stats->q_obytes[i] = txq->stats.bytes; } } for (i = 0; i < dev->data->nb_rx_queues; i++) { const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; if (!rxq) continue; stats->ipackets += rxq->stats.packets; stats->ibytes += rxq->stats.bytes; stats->ierrors += rxq->stats.errors; stats->imissed += rxq->stats.ring_full; if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) { stats->q_ipackets[i] = rxq->stats.packets; stats->q_ibytes[i] = rxq->stats.bytes; } } stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed; return 0; } static int hn_dev_stats_reset(struct rte_eth_dev *dev) { unsigned int i; PMD_INIT_FUNC_TRACE(); for (i = 0; i < dev->data->nb_tx_queues; i++) { struct hn_tx_queue *txq = dev->data->tx_queues[i]; if (!txq) continue; memset(&txq->stats, 0, sizeof(struct hn_stats)); } for (i = 0; i < dev->data->nb_rx_queues; i++) { struct hn_rx_queue *rxq = dev->data->rx_queues[i]; if (!rxq) continue; memset(&rxq->stats, 0, sizeof(struct hn_stats)); } return 0; } static int hn_dev_xstats_reset(struct rte_eth_dev *dev) { int ret; ret = hn_dev_stats_reset(dev); if (ret != 0) return 0; return hn_vf_xstats_reset(dev); } static int hn_dev_xstats_count(struct rte_eth_dev *dev) { int ret, count; count = dev->data->nb_tx_queues * RTE_DIM(hn_stat_strings); count += dev->data->nb_rx_queues * RTE_DIM(hn_stat_strings); ret = hn_vf_xstats_get_names(dev, NULL, 0); if (ret < 0) return ret; return count + ret; } static int hn_dev_xstats_get_names(struct rte_eth_dev *dev, struct rte_eth_xstat_name *xstats_names, unsigned int limit) { unsigned int i, t, count = 0; int ret; if (!xstats_names) return hn_dev_xstats_count(dev); /* Note: limit checked in rte_eth_xstats_names() */ for (i = 0; i < dev->data->nb_tx_queues; i++) { const struct hn_tx_queue *txq = dev->data->tx_queues[i]; if (!txq) continue; if (count >= limit) break; for (t = 0; t < RTE_DIM(hn_stat_strings); t++) snprintf(xstats_names[count++].name, RTE_ETH_XSTATS_NAME_SIZE, "tx_q%u_%s", i, hn_stat_strings[t].name); } for (i = 0; i < dev->data->nb_rx_queues; i++) { const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; if (!rxq) continue; if (count >= limit) break; for (t = 0; t < RTE_DIM(hn_stat_strings); t++) snprintf(xstats_names[count++].name, RTE_ETH_XSTATS_NAME_SIZE, "rx_q%u_%s", i, hn_stat_strings[t].name); } ret = hn_vf_xstats_get_names(dev, xstats_names + count, limit - count); if (ret < 0) return ret; return count + ret; } static int hn_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats, unsigned int n) { unsigned int i, t, count = 0; const unsigned int nstats = hn_dev_xstats_count(dev); const char *stats; int ret; PMD_INIT_FUNC_TRACE(); if (n < nstats) return nstats; for (i = 0; i < dev->data->nb_tx_queues; i++) { const struct hn_tx_queue *txq = dev->data->tx_queues[i]; if (!txq) continue; stats = (const char *)&txq->stats; for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { xstats[count].id = count; xstats[count].value = *(const uint64_t *) (stats + hn_stat_strings[t].offset); } } for (i = 0; i < dev->data->nb_rx_queues; i++) { const struct hn_rx_queue *rxq = dev->data->rx_queues[i]; if (!rxq) continue; stats = (const char *)&rxq->stats; for (t = 0; t < RTE_DIM(hn_stat_strings); t++, count++) { xstats[count].id = count; xstats[count].value = *(const uint64_t *) (stats + hn_stat_strings[t].offset); } } ret = hn_vf_xstats_get(dev, xstats, count, n); if (ret < 0) return ret; return count + ret; } static int hn_dev_start(struct rte_eth_dev *dev) { struct hn_data *hv = dev->data->dev_private; int error; PMD_INIT_FUNC_TRACE(); /* Register to monitor hot plug events */ error = rte_dev_event_callback_register(NULL, netvsc_hotadd_callback, hv); if (error) { PMD_DRV_LOG(ERR, "failed to register device event callback"); return error; } error = hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_BROADCAST | NDIS_PACKET_TYPE_ALL_MULTICAST | NDIS_PACKET_TYPE_DIRECTED); if (error) return error; error = hn_vf_start(dev); if (error) hn_rndis_set_rxfilter(hv, 0); /* Initialize Link state */ if (error == 0) hn_dev_link_update(dev, 0); return error; } static int hn_dev_stop(struct rte_eth_dev *dev) { struct hn_data *hv = dev->data->dev_private; PMD_INIT_FUNC_TRACE(); dev->data->dev_started = 0; rte_dev_event_callback_unregister(NULL, netvsc_hotadd_callback, hv); hn_rndis_set_rxfilter(hv, 0); return hn_vf_stop(dev); } static int hn_dev_close(struct rte_eth_dev *dev) { int ret; struct hn_data *hv = dev->data->dev_private; PMD_INIT_FUNC_TRACE(); if (rte_eal_process_type() != RTE_PROC_PRIMARY) return 0; rte_eal_alarm_cancel(netvsc_hotplug_retry, &hv->devargs); ret = hn_vf_close(dev); hn_dev_free_queues(dev); return ret; } static const struct eth_dev_ops hn_eth_dev_ops = { .dev_configure = hn_dev_configure, .dev_start = hn_dev_start, .dev_stop = hn_dev_stop, .dev_close = hn_dev_close, .dev_infos_get = hn_dev_info_get, .txq_info_get = hn_dev_tx_queue_info, .rxq_info_get = hn_dev_rx_queue_info, .dev_supported_ptypes_get = hn_vf_supported_ptypes, .promiscuous_enable = hn_dev_promiscuous_enable, .promiscuous_disable = hn_dev_promiscuous_disable, .allmulticast_enable = hn_dev_allmulticast_enable, .allmulticast_disable = hn_dev_allmulticast_disable, .set_mc_addr_list = hn_dev_mc_addr_list, .reta_update = hn_rss_reta_update, .reta_query = hn_rss_reta_query, .rss_hash_update = hn_rss_hash_update, .rss_hash_conf_get = hn_rss_hash_conf_get, .tx_queue_setup = hn_dev_tx_queue_setup, .tx_queue_release = hn_dev_tx_queue_release, .tx_done_cleanup = hn_dev_tx_done_cleanup, .rx_queue_setup = hn_dev_rx_queue_setup, .rx_queue_release = hn_dev_rx_queue_release, .link_update = hn_dev_link_update, .stats_get = hn_dev_stats_get, .stats_reset = hn_dev_stats_reset, .xstats_get = hn_dev_xstats_get, .xstats_get_names = hn_dev_xstats_get_names, .xstats_reset = hn_dev_xstats_reset, }; /* * Setup connection between PMD and kernel. */ static int hn_attach(struct hn_data *hv, unsigned int mtu) { int error; /* Attach NVS */ error = hn_nvs_attach(hv, mtu); if (error) goto failed_nvs; /* Attach RNDIS */ error = hn_rndis_attach(hv); if (error) goto failed_rndis; /* * NOTE: * Under certain conditions on certain versions of Hyper-V, * the RNDIS rxfilter is _not_ zero on the hypervisor side * after the successful RNDIS initialization. */ hn_rndis_set_rxfilter(hv, NDIS_PACKET_TYPE_NONE); return 0; failed_rndis: hn_nvs_detach(hv); failed_nvs: return error; } static void hn_detach(struct hn_data *hv) { hn_nvs_detach(hv); hn_rndis_detach(hv); } static int eth_hn_dev_init(struct rte_eth_dev *eth_dev) { struct hn_data *hv = eth_dev->data->dev_private; struct rte_device *device = eth_dev->device; struct rte_vmbus_device *vmbus; unsigned int rxr_cnt; int err, max_chan; PMD_INIT_FUNC_TRACE(); vmbus = container_of(device, struct rte_vmbus_device, device); eth_dev->dev_ops = &hn_eth_dev_ops; eth_dev->rx_queue_count = hn_dev_rx_queue_count; eth_dev->rx_descriptor_status = hn_dev_rx_queue_status; eth_dev->tx_descriptor_status = hn_dev_tx_descriptor_status; eth_dev->tx_pkt_burst = &hn_xmit_pkts; eth_dev->rx_pkt_burst = &hn_recv_pkts; /* * for secondary processes, we don't initialize any further as primary * has already done this work. */ if (rte_eal_process_type() != RTE_PROC_PRIMARY) return 0; eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS; /* Since Hyper-V only supports one MAC address */ eth_dev->data->mac_addrs = rte_calloc("hv_mac", HN_MAX_MAC_ADDRS, sizeof(struct rte_ether_addr), 0); if (eth_dev->data->mac_addrs == NULL) { PMD_INIT_LOG(ERR, "Failed to allocate memory store MAC addresses"); return -ENOMEM; } hv->vmbus = vmbus; hv->rxbuf_res = &vmbus->resource[HV_RECV_BUF_MAP]; hv->chim_res = &vmbus->resource[HV_SEND_BUF_MAP]; hv->port_id = eth_dev->data->port_id; hv->latency = HN_CHAN_LATENCY_NS; hv->rx_copybreak = HN_RXCOPY_THRESHOLD; hv->tx_copybreak = HN_TXCOPY_THRESHOLD; hv->rx_extmbuf_enable = HN_RX_EXTMBUF_ENABLE; hv->max_queues = 1; rte_rwlock_init(&hv->vf_lock); hv->vf_ctx.vf_vsc_switched = false; hv->vf_ctx.vf_vsp_reported = false; hv->vf_ctx.vf_attached = false; hv->vf_ctx.vf_state = vf_unknown; err = hn_parse_args(eth_dev); if (err) return err; strlcpy(hv->owner.name, eth_dev->device->name, RTE_ETH_MAX_OWNER_NAME_LEN); err = rte_eth_dev_owner_new(&hv->owner.id); if (err) { PMD_INIT_LOG(ERR, "Can not get owner id"); return err; } /* Initialize primary channel input for control operations */ err = rte_vmbus_chan_open(vmbus, &hv->channels[0]); if (err) return err; rte_vmbus_set_latency(hv->vmbus, hv->channels[0], hv->latency); hv->primary = hn_rx_queue_alloc(hv, 0, eth_dev->device->numa_node); if (!hv->primary) return -ENOMEM; err = hn_attach(hv, RTE_ETHER_MTU); if (err) goto failed; err = hn_chim_init(eth_dev); if (err) goto failed; err = hn_rndis_get_eaddr(hv, eth_dev->data->mac_addrs->addr_bytes); if (err) goto failed; /* Multi queue requires later versions of windows server */ if (hv->nvs_ver < NVS_VERSION_5) return 0; max_chan = rte_vmbus_max_channels(vmbus); PMD_INIT_LOG(DEBUG, "VMBus max channels %d", max_chan); if (max_chan <= 0) goto failed; if (hn_rndis_query_rsscaps(hv, &rxr_cnt) != 0) rxr_cnt = 1; hv->max_queues = RTE_MIN(rxr_cnt, (unsigned int)max_chan); /* If VF was reported but not added, do it now */ if (hv->vf_ctx.vf_vsp_reported && !hv->vf_ctx.vf_vsc_switched) { PMD_INIT_LOG(DEBUG, "Adding VF device"); err = hn_vf_add(eth_dev, hv); } return 0; failed: PMD_INIT_LOG(NOTICE, "device init failed"); hn_chim_uninit(eth_dev); hn_detach(hv); return err; } static int eth_hn_dev_uninit(struct rte_eth_dev *eth_dev) { struct hn_data *hv = eth_dev->data->dev_private; int ret, ret_stop; PMD_INIT_FUNC_TRACE(); if (rte_eal_process_type() != RTE_PROC_PRIMARY) return 0; ret_stop = hn_dev_stop(eth_dev); hn_dev_close(eth_dev); hn_detach(hv); hn_chim_uninit(eth_dev); rte_vmbus_chan_close(hv->primary->chan); rte_free(hv->primary); ret = rte_eth_dev_owner_delete(hv->owner.id); if (ret != 0) return ret; return ret_stop; } static int eth_hn_probe(struct rte_vmbus_driver *drv __rte_unused, struct rte_vmbus_device *dev) { struct rte_eth_dev *eth_dev; int ret; PMD_INIT_FUNC_TRACE(); ret = rte_dev_event_monitor_start(); if (ret) { PMD_DRV_LOG(ERR, "Failed to start device event monitoring"); return ret; } eth_dev = eth_dev_vmbus_allocate(dev, sizeof(struct hn_data)); if (!eth_dev) return -ENOMEM; ret = eth_hn_dev_init(eth_dev); if (ret) { eth_dev_vmbus_release(eth_dev); rte_dev_event_monitor_stop(); } else { rte_eth_dev_probing_finish(eth_dev); } return ret; } static int eth_hn_remove(struct rte_vmbus_device *dev) { struct rte_eth_dev *eth_dev; int ret; PMD_INIT_FUNC_TRACE(); eth_dev = rte_eth_dev_allocated(dev->device.name); if (!eth_dev) return 0; /* port already released */ ret = eth_hn_dev_uninit(eth_dev); if (ret) return ret; eth_dev_vmbus_release(eth_dev); rte_dev_event_monitor_stop(); return 0; } /* Network device GUID */ static const rte_uuid_t hn_net_ids[] = { /* f8615163-df3e-46c5-913f-f2d2f965ed0e */ RTE_UUID_INIT(0xf8615163, 0xdf3e, 0x46c5, 0x913f, 0xf2d2f965ed0eULL), { 0 } }; static struct rte_vmbus_driver rte_netvsc_pmd = { .id_table = hn_net_ids, .probe = eth_hn_probe, .remove = eth_hn_remove, }; RTE_PMD_REGISTER_VMBUS(net_netvsc, rte_netvsc_pmd); RTE_PMD_REGISTER_KMOD_DEP(net_netvsc, "* uio_hv_generic"); RTE_LOG_REGISTER_SUFFIX(hn_logtype_init, init, NOTICE); RTE_LOG_REGISTER_SUFFIX(hn_logtype_driver, driver, NOTICE); RTE_PMD_REGISTER_PARAM_STRING(net_netvsc, NETVSC_ARG_LATENCY "= " NETVSC_ARG_RXBREAK "= " NETVSC_ARG_TXBREAK "= " NETVSC_ARG_RX_EXTMBUF_ENABLE "=<0|1>");