diff options
Diffstat (limited to 'vnet/vnet/devices/dpdk/dpdk_priv.h')
| -rw-r--r-- | vnet/vnet/devices/dpdk/dpdk_priv.h | 437 |
1 files changed, 437 insertions, 0 deletions
diff --git a/vnet/vnet/devices/dpdk/dpdk_priv.h b/vnet/vnet/devices/dpdk/dpdk_priv.h new file mode 100644 index 00000000000..e452e02d90d --- /dev/null +++ b/vnet/vnet/devices/dpdk/dpdk_priv.h @@ -0,0 +1,437 @@ +/* + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define DPDK_NB_RX_DESC_DEFAULT 512 +#define DPDK_NB_TX_DESC_DEFAULT 512 +#define DPDK_NB_RX_DESC_VIRTIO 256 +#define DPDK_NB_TX_DESC_VIRTIO 256 +#define DPDK_NB_RX_DESC_10GE 2048 +#define DPDK_NB_TX_DESC_10GE 2048 +#define DPDK_NB_RX_DESC_40GE (4096-128) +#define DPDK_NB_TX_DESC_40GE 2048 + +#define foreach_dpdk_counter \ + _ (tx_frames_ok, opackets) \ + _ (tx_bytes_ok, obytes) \ + _ (tx_errors, oerrors) \ + _ (tx_loopback_frames_ok, olbpackets) \ + _ (tx_loopback_bytes_ok, olbbytes) \ + _ (rx_frames_ok, ipackets) \ + _ (rx_bytes_ok, ibytes) \ + _ (rx_errors, ierrors) \ + _ (rx_missed, imissed) \ + _ (rx_bad_crc, ibadcrc) \ + _ (rx_bad_length, ibadlen) \ + _ (rx_multicast_frames_ok, imcasts) \ + _ (rx_no_bufs, rx_nombuf) \ + _ (rx_filter_match, fdirmatch) \ + _ (rx_filter_miss, fdirmiss) \ + _ (tx_pause_xon, tx_pause_xon) \ + _ (rx_pause_xon, rx_pause_xon) \ + _ (tx_pause_xoff, tx_pause_xoff) \ + _ (rx_pause_xoff, rx_pause_xoff) \ + _ (rx_loopback_frames_ok, ilbpackets) \ + _ (rx_loopback_bytes_ok, ilbbytes) + +#define foreach_dpdk_q_counter \ + _ (rx_frames_ok, q_ipackets) \ + _ (tx_frames_ok, q_opackets) \ + _ (rx_bytes_ok, q_ibytes) \ + _ (tx_bytes_ok, q_obytes) \ + _ (rx_errors, q_errors) + +#define foreach_dpdk_rss_hf \ + _(ETH_RSS_IPV4, "ipv4") \ + _(ETH_RSS_FRAG_IPV4, "ipv4-frag") \ + _(ETH_RSS_NONFRAG_IPV4_TCP, "ipv4-tcp") \ + _(ETH_RSS_NONFRAG_IPV4_UDP, "ipv4-udp") \ + _(ETH_RSS_NONFRAG_IPV4_SCTP, "ipv4-sctp") \ + _(ETH_RSS_NONFRAG_IPV4_OTHER, "ipv4-other") \ + _(ETH_RSS_IPV6, "ipv6") \ + _(ETH_RSS_FRAG_IPV6, "ipv6-frag") \ + _(ETH_RSS_NONFRAG_IPV6_TCP, "ipv6-tcp") \ + _(ETH_RSS_NONFRAG_IPV6_UDP, "ipv6-udp") \ + _(ETH_RSS_NONFRAG_IPV6_SCTP, "ipv6-sctp") \ + _(ETH_RSS_NONFRAG_IPV6_OTHER, "ipv6-other") \ + _(ETH_RSS_L2_PAYLOAD, "l2-payload") \ + _(ETH_RSS_IPV6_EX, "ipv6-ex") \ + _(ETH_RSS_IPV6_TCP_EX, "ipv6-tcp-ex") \ + _(ETH_RSS_IPV6_UDP_EX, "ipv6-udp-ex") + +#define foreach_dpdk_rx_offload_caps \ + _(DEV_RX_OFFLOAD_VLAN_STRIP, "vlan-strip") \ + _(DEV_RX_OFFLOAD_IPV4_CKSUM, "ipv4-cksum") \ + _(DEV_RX_OFFLOAD_UDP_CKSUM , "udp-cksum") \ + _(DEV_RX_OFFLOAD_TCP_CKSUM , "tcp-cksum") \ + _(DEV_RX_OFFLOAD_TCP_LRO , "rcp-lro") \ + _(DEV_RX_OFFLOAD_QINQ_STRIP, "qinq-strip") + +#define foreach_dpdk_tx_offload_caps \ + _(DEV_TX_OFFLOAD_VLAN_INSERT, "vlan-insert") \ + _(DEV_TX_OFFLOAD_IPV4_CKSUM, "ipv4-cksum") \ + _(DEV_TX_OFFLOAD_UDP_CKSUM , "udp-cksum") \ + _(DEV_TX_OFFLOAD_TCP_CKSUM , "tcp-cksum") \ + _(DEV_TX_OFFLOAD_SCTP_CKSUM , "sctp-cksum") \ + _(DEV_TX_OFFLOAD_TCP_TSO , "tcp-tso") \ + _(DEV_TX_OFFLOAD_UDP_TSO , "udp-tso") \ + _(DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM, "outer-ipv4-cksum") \ + _(DEV_TX_OFFLOAD_QINQ_INSERT, "qinq-insert") + +#if RTE_VERSION >= RTE_VERSION_NUM(2, 1, 0, 0) + +#define foreach_dpdk_pkt_rx_offload_flag \ + _ (PKT_RX_VLAN_PKT, "RX packet is a 802.1q VLAN packet") \ + _ (PKT_RX_RSS_HASH, "RX packet with RSS hash result") \ + _ (PKT_RX_FDIR, "RX packet with FDIR infos") \ + _ (PKT_RX_L4_CKSUM_BAD, "L4 cksum of RX pkt. is not OK") \ + _ (PKT_RX_IP_CKSUM_BAD, "IP cksum of RX pkt. is not OK") \ + _ (PKT_RX_IEEE1588_PTP, "RX IEEE1588 L2 Ethernet PT Packet") \ + _ (PKT_RX_IEEE1588_TMST, "RX IEEE1588 L2/L4 timestamped packet") + +#define foreach_dpdk_pkt_type \ + _ (RTE_PTYPE_L3_IPV4, "Packet with IPv4 header") \ + _ (RTE_PTYPE_L3_IPV4_EXT, "Packet with extended IPv4 header") \ + _ (RTE_PTYPE_L3_IPV6, "Packet with IPv6 header") \ + _ (RTE_PTYPE_L3_IPV6_EXT, "Packet with extended IPv6 header") +#else +#define foreach_dpdk_pkt_rx_offload_flag \ + _ (PKT_RX_VLAN_PKT, "RX packet is a 802.1q VLAN packet") \ + _ (PKT_RX_RSS_HASH, "RX packet with RSS hash result") \ + _ (PKT_RX_FDIR, "RX packet with FDIR infos") \ + _ (PKT_RX_L4_CKSUM_BAD, "L4 cksum of RX pkt. is not OK") \ + _ (PKT_RX_IP_CKSUM_BAD, "IP cksum of RX pkt. is not OK") \ + _ (PKT_RX_IPV4_HDR, "RX packet with IPv4 header") \ + _ (PKT_RX_IPV4_HDR_EXT, "RX packet with extended IPv4 header") \ + _ (PKT_RX_IPV6_HDR, "RX packet with IPv6 header") \ + _ (PKT_RX_IPV6_HDR_EXT, "RX packet with extended IPv6 header") \ + _ (PKT_RX_IEEE1588_PTP, "RX IEEE1588 L2 Ethernet PT Packet") \ + _ (PKT_RX_IEEE1588_TMST, "RX IEEE1588 L2/L4 timestamped packet") + +#define foreach_dpdk_pkt_type /* Dummy */ +#endif /* RTE_VERSION */ + +#define foreach_dpdk_pkt_tx_offload_flag \ + _ (PKT_TX_VLAN_PKT, "TX packet is a 802.1q VLAN packet") \ + _ (PKT_TX_IP_CKSUM, "IP cksum of TX pkt. computed by NIC") \ + _ (PKT_TX_TCP_CKSUM, "TCP cksum of TX pkt. computed by NIC") \ + _ (PKT_TX_SCTP_CKSUM, "SCTP cksum of TX pkt. computed by NIC") \ + _ (PKT_TX_IEEE1588_TMST, "TX IEEE1588 packet to timestamp") + +#define foreach_dpdk_pkt_offload_flag \ + foreach_dpdk_pkt_rx_offload_flag \ + foreach_dpdk_pkt_tx_offload_flag + +static inline u8 * format_dpdk_pkt_types (u8 * s, va_list * va) +{ + u32 *pkt_types = va_arg (*va, u32 *); + uword indent __attribute__((unused)) = format_get_indent (s) + 2; + + if (!*pkt_types) + return s; + + s = format (s, "Packet Types"); + +#define _(F, S) \ + if (*pkt_types & F) \ + { \ + s = format (s, "\n%U%s (0x%04x) %s", \ + format_white_space, indent, #F, F, S); \ + } + + foreach_dpdk_pkt_type + +#undef _ + + return s; +} + +static inline u8 * format_dpdk_pkt_offload_flags (u8 * s, va_list * va) +{ + u16 *ol_flags = va_arg (*va, u16 *); + uword indent = format_get_indent (s) + 2; + + if (!*ol_flags) + return s; + + s = format (s, "Packet Offload Flags"); + +#define _(F, S) \ + if (*ol_flags & F) \ + { \ + s = format (s, "\n%U%s (0x%04x) %s", \ + format_white_space, indent, #F, F, S); \ + } + + foreach_dpdk_pkt_offload_flag + +#undef _ + + return s; +} + +static inline u8 * format_dpdk_rte_mbuf (u8 * s, va_list * va) +{ + struct rte_mbuf * mb = va_arg (*va, struct rte_mbuf *); + uword indent = format_get_indent (s) + 2; + + s = format (s, "PKT MBUF: port %d, nb_segs %d, pkt_len %d" + "\n%Ubuf_len %d, data_len %d, ol_flags 0x%x," + "\n%Upacket_type 0x%x", + mb->port, mb->nb_segs, mb->pkt_len, + format_white_space, indent, + mb->buf_len, mb->data_len, mb->ol_flags, + format_white_space, indent, + mb->packet_type); + + if (mb->ol_flags) + s = format (s, "\n%U%U", format_white_space, indent, + format_dpdk_pkt_offload_flags, &mb->ol_flags); + + if (mb->packet_type) + s = format (s, "\n%U%U", format_white_space, indent, + format_dpdk_pkt_types, &mb->packet_type); + return s; +} + +#ifdef RTE_LIBRTE_MBUF_EXT_RX_OLFLAGS +#define foreach_dpdk_pkt_ext_rx_offload_flag \ + _ (PKT_EXT_RX_PKT_ERROR, "RX Packet Error") \ + _ (PKT_EXT_RX_BAD_FCS, "RX Bad FCS checksum") \ + _ (PKT_EXT_RX_UDP, "RX packet with UDP L4 header") \ + _ (PKT_EXT_RX_TCP, "RX packet with TCP L4 header") \ + _ (PKT_EXT_RX_IPV4_FRAGMENT, "RX packet IPv4 Fragment") + +#define foreach_dpdk_pkt_ext_offload_flag \ + foreach_dpdk_pkt_rx_offload_flag \ + foreach_dpdk_pkt_ext_rx_offload_flag + +static inline u8 * format_dpdk_pkt_rx_offload_flags (u8 * s, va_list * va) +{ + u16 *ol_flags = va_arg (*va, u16 *); + uword indent = format_get_indent (s) + 2; + + if (!*ol_flags) + return s; + + s = format (s, "Packet RX Offload Flags"); + +#define _(F, S) \ + if (*ol_flags & F) \ + { \ + s = format (s, "\n%U%s (0x%04x) %s", \ + format_white_space, indent, #F, F, S); \ + } + + foreach_dpdk_pkt_ext_offload_flag + +#undef _ + + return s; +} + +static inline u8 * format_dpdk_rx_rte_mbuf (u8 * s, va_list * va) +{ + struct rte_mbuf * mb = va_arg (*va, struct rte_mbuf *); + uword indent = format_get_indent (s) + 2; + + /* + * Note: Assumes mb is head of pkt chain -- port, nb_segs, & pkt_len + * are only valid for the 1st mbuf segment. + */ + s = format (s, "PKT MBUF: port %d, nb_segs %d, pkt_len %d" + "\n%Ubuf_len %d, data_len %d, ol_flags 0x%x" + "\n%Upacket_type 0x%x", + mb->port, mb->nb_segs, mb->pkt_len, + format_white_space, indent, + mb->buf_len, mb->data_len, mb->ol_flags, + format_white_space, indent, + mb->packet_type); + + if (mb->ol_flags) + s = format (s, "\n%U%U", format_white_space, indent, + format_dpdk_pkt_rx_offload_flags, &mb->ol_flags); + + if (mb->packet_type) + s = format (s, "\n%U%U", format_white_space, indent, + format_dpdk_pkt_types, &mb->packet_type); + return s; +} +#endif /* RTE_LIBRTE_MBUF_EXT_RX_OLFLAGS */ + +/* These args appear by themselves */ +#define foreach_eal_double_hyphen_predicate_arg \ +_(no-shconf) \ +_(no-hpet) \ +_(no-pci) \ +_(no-huge) \ +_(vmware-tsc-map) \ +_(virtio-vhost) + +#define foreach_eal_single_hyphen_mandatory_arg \ +_(coremask, c) \ +_(nchannels, n) \ + +#define foreach_eal_single_hyphen_arg \ +_(blacklist, b) \ +_(mem-alloc-request, m) \ +_(force-ranks, r) + +/* These args are preceeded by "--" and followed by a single string */ +#define foreach_eal_double_hyphen_arg \ +_(huge-dir) \ +_(proc-type) \ +_(file-prefix) \ +_(socket-mem) \ +_(vdev) + +static inline u32 +dpdk_rx_burst ( dpdk_main_t * dm, dpdk_device_t * xd, u16 queue_id) +{ + u32 n_buffers; + u32 n_left; + u32 n_this_chunk; + + n_left = VLIB_FRAME_SIZE; + n_buffers = 0; + + if (PREDICT_TRUE(xd->dev_type == VNET_DPDK_DEV_ETH)) + { + while (n_left) + { + n_this_chunk = rte_eth_rx_burst (xd->device_index, queue_id, + xd->rx_vectors[queue_id] + n_buffers, n_left); + n_buffers += n_this_chunk; + n_left -= n_this_chunk; + + /* Empirically, DPDK r1.8 produces vectors w/ 32 or fewer elts */ + if (n_this_chunk < 32) + break; + } + } + else if (xd->dev_type == VNET_DPDK_DEV_VHOST_USER) + { + vlib_main_t * vm = vlib_get_main(); + vlib_buffer_main_t * bm = vm->buffer_main; + unsigned socket_id = rte_socket_id(); + + if (PREDICT_FALSE(!xd->vu_is_running)) + return 0; + + n_buffers = rte_vhost_dequeue_burst(&xd->vu_vhost_dev, VIRTIO_TXQ, + bm->pktmbuf_pools[socket_id], + xd->rx_vectors[queue_id], VLIB_FRAME_SIZE); + + f64 now = vlib_time_now (dm->vlib_main); + + /* send pending interrupts if needed */ + if (dpdk_vhost_user_want_interrupt(xd, VIRTIO_TXQ)) { + dpdk_vu_vring *vring = &(xd->vu_intf->vrings[VIRTIO_TXQ]); + vring->n_since_last_int += n_buffers; + + if ((vring->n_since_last_int && (vring->int_deadline < now)) + || (vring->n_since_last_int > dm->vhost_coalesce_frames)) + dpdk_vhost_user_send_interrupt(dm->vlib_main, xd, VIRTIO_TXQ); + } + + if (dpdk_vhost_user_want_interrupt(xd, VIRTIO_RXQ)) { + dpdk_vu_vring *vring = &(xd->vu_intf->vrings[VIRTIO_RXQ]); + if (vring->n_since_last_int && (vring->int_deadline < now)) + dpdk_vhost_user_send_interrupt(dm->vlib_main, xd, VIRTIO_RXQ); + } + + } + else if (xd->dev_type == VNET_DPDK_DEV_KNI) + { + n_buffers = rte_kni_rx_burst(xd->kni, xd->rx_vectors[queue_id], VLIB_FRAME_SIZE); + rte_kni_handle_request(xd->kni); + } + else + { + ASSERT(0); + } + + return n_buffers; +} + + +static inline void +dpdk_update_counters (dpdk_device_t * xd, f64 now) +{ + vlib_simple_counter_main_t * cm; + vnet_main_t * vnm = vnet_get_main(); + u32 my_cpu = os_get_cpu_number(); + u64 rxerrors, last_rxerrors; + int len; + + /* only update counters for PMD interfaces */ + if (xd->dev_type != VNET_DPDK_DEV_ETH) + return; + + /* + * DAW-FIXME: VMXNET3 device stop/start doesn't work, + * therefore fake the stop in the dpdk driver by + * silently dropping all of the incoming pkts instead of + * stopping the driver / hardware. + */ + if (xd->admin_up != 0xff) + { + xd->time_last_stats_update = now ? now : xd->time_last_stats_update; + memcpy (&xd->last_stats, &xd->stats, sizeof (xd->last_stats)); + rte_eth_stats_get (xd->device_index, &xd->stats); + + /* maybe bump interface rx no buffer counter */ + if (PREDICT_FALSE (xd->stats.rx_nombuf != xd->last_stats.rx_nombuf)) + { + cm = vec_elt_at_index (vnm->interface_main.sw_if_counters, + VNET_INTERFACE_COUNTER_RX_NO_BUF); + + vlib_increment_simple_counter (cm, my_cpu, xd->vlib_sw_if_index, + xd->stats.rx_nombuf - + xd->last_stats.rx_nombuf); + } + + /* missed pkt counter */ + if (PREDICT_FALSE (xd->stats.imissed != xd->last_stats.imissed)) + { + cm = vec_elt_at_index (vnm->interface_main.sw_if_counters, + VNET_INTERFACE_COUNTER_RX_MISS); + + vlib_increment_simple_counter (cm, my_cpu, xd->vlib_sw_if_index, + xd->stats.imissed - + xd->last_stats.imissed); + } + rxerrors = xd->stats.ibadcrc + + xd->stats.ibadlen + xd->stats.ierrors; + last_rxerrors = xd->last_stats.ibadcrc + + xd->last_stats.ibadlen + xd->last_stats.ierrors; + + if (PREDICT_FALSE (rxerrors != last_rxerrors)) + { + cm = vec_elt_at_index (vnm->interface_main.sw_if_counters, + VNET_INTERFACE_COUNTER_RX_ERROR); + + vlib_increment_simple_counter (cm, my_cpu, xd->vlib_sw_if_index, + rxerrors - last_rxerrors); + } + } + + if ((len = rte_eth_xstats_get(xd->device_index, NULL, 0)) > 0) + { + vec_validate(xd->xstats, len - 1); + len = rte_eth_xstats_get(xd->device_index, xd->xstats, vec_len(xd->xstats)); + ASSERT(vec_len(xd->xstats) == len); + _vec_len(xd->xstats) = len; + } +} |