--- /dev/null
+/*
+ * Copyright (c) 2014 Nicira, Inc.
+ *
+ * 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.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <config.h>
+#include <errno.h>
+#include <sched.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include "connectivity.h"
+#include "dpif-netdev.h"
+#include "list.h"
+#include "netdev-dpdk.h"
+#include "netdev-provider.h"
+#include "netdev-vport.h"
+#include "odp-util.h"
+#include "ofp-print.h"
+#include "ofpbuf.h"
+#include "ovs-thread.h"
+#include "ovs-rcu.h"
+#include "packets.h"
+#include "shash.h"
+#include "seq.h"
+#include "sset.h"
+#include "unaligned.h"
+#include "timeval.h"
+#include "unixctl.h"
+#include "vlog.h"
+
+VLOG_DEFINE_THIS_MODULE(dpdk);
+static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
+
+#define DPDK_PORT_WATCHDOG_INTERVAL 5
+
+#define OVS_CACHE_LINE_SIZE CACHE_LINE_SIZE
+#define OVS_VPORT_DPDK "ovs_dpdk"
+
+/*
+ * need to reserve tons of extra space in the mbufs so we can align the
+ * DMA addresses to 4KB.
+ */
+
+#define MTU_TO_MAX_LEN(mtu) ((mtu) + ETHER_HDR_LEN + ETHER_CRC_LEN)
+#define MBUF_SIZE(mtu) (MTU_TO_MAX_LEN(mtu) + (512) + \
+ sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
+
+/* TODO: mempool size should be based on system resources. */
+#define NB_MBUF (4096 * 64)
+#define MP_CACHE_SZ (256 * 2)
+#define SOCKET0 0
+
+#define NON_PMD_THREAD_TX_QUEUE 0
+
+/* TODO: Needs per NIC value for these constants. */
+#define RX_PTHRESH 32 /* Default values of RX prefetch threshold reg. */
+#define RX_HTHRESH 32 /* Default values of RX host threshold reg. */
+#define RX_WTHRESH 16 /* Default values of RX write-back threshold reg. */
+
+#define TX_PTHRESH 36 /* Default values of TX prefetch threshold reg. */
+#define TX_HTHRESH 0 /* Default values of TX host threshold reg. */
+#define TX_WTHRESH 0 /* Default values of TX write-back threshold reg. */
+
+static const struct rte_eth_conf port_conf = {
+ .rxmode = {
+ .mq_mode = ETH_MQ_RX_RSS,
+ .split_hdr_size = 0,
+ .header_split = 0, /* Header Split disabled */
+ .hw_ip_checksum = 0, /* IP checksum offload disabled */
+ .hw_vlan_filter = 0, /* VLAN filtering disabled */
+ .jumbo_frame = 0, /* Jumbo Frame Support disabled */
+ .hw_strip_crc = 0,
+ },
+ .rx_adv_conf = {
+ .rss_conf = {
+ .rss_key = NULL,
+ .rss_hf = ETH_RSS_IPV4_TCP | ETH_RSS_IPV4 | ETH_RSS_IPV6,
+ },
+ },
+ .txmode = {
+ .mq_mode = ETH_MQ_TX_NONE,
+ },
+};
+
+static const struct rte_eth_rxconf rx_conf = {
+ .rx_thresh = {
+ .pthresh = RX_PTHRESH,
+ .hthresh = RX_HTHRESH,
+ .wthresh = RX_WTHRESH,
+ },
+};
+
+static const struct rte_eth_txconf tx_conf = {
+ .tx_thresh = {
+ .pthresh = TX_PTHRESH,
+ .hthresh = TX_HTHRESH,
+ .wthresh = TX_WTHRESH,
+ },
+ .tx_free_thresh = 0,
+ .tx_rs_thresh = 0,
+};
+
+enum { MAX_RX_QUEUE_LEN = 64 };
+enum { MAX_TX_QUEUE_LEN = 64 };
+enum { DRAIN_TSC = 200000ULL };
+
+static int rte_eal_init_ret = ENODEV;
+
+static struct ovs_mutex dpdk_mutex = OVS_MUTEX_INITIALIZER;
+
+/* Contains all 'struct dpdk_dev's. */
+static struct list dpdk_list OVS_GUARDED_BY(dpdk_mutex)
+ = LIST_INITIALIZER(&dpdk_list);
+
+static struct list dpdk_mp_list OVS_GUARDED_BY(dpdk_mutex)
+ = LIST_INITIALIZER(&dpdk_mp_list);
+
+static pthread_t watchdog_thread;
+
+struct dpdk_mp {
+ struct rte_mempool *mp;
+ int mtu;
+ int socket_id;
+ int refcount;
+ struct list list_node OVS_GUARDED_BY(dpdk_mutex);
+};
+
+struct dpdk_tx_queue {
+ rte_spinlock_t tx_lock;
+ int count;
+ uint64_t tsc;
+ struct rte_mbuf *burst_pkts[MAX_TX_QUEUE_LEN];
+};
+
+struct netdev_dpdk {
+ struct netdev up;
+ int port_id;
+ int max_packet_len;
+
+ struct dpdk_tx_queue tx_q[NR_QUEUE];
+
+ struct ovs_mutex mutex OVS_ACQ_AFTER(dpdk_mutex);
+
+ struct dpdk_mp *dpdk_mp;
+ int mtu;
+ int socket_id;
+ int buf_size;
+ struct netdev_stats stats_offset;
+ struct netdev_stats stats;
+
+ uint8_t hwaddr[ETH_ADDR_LEN];
+ enum netdev_flags flags;
+
+ struct rte_eth_link link;
+ int link_reset_cnt;
+
+ /* In dpdk_list. */
+ struct list list_node OVS_GUARDED_BY(dpdk_mutex);
+};
+
+struct netdev_rxq_dpdk {
+ struct netdev_rxq up;
+ int port_id;
+};
+
+static int netdev_dpdk_construct(struct netdev *);
+
+static bool
+is_dpdk_class(const struct netdev_class *class)
+{
+ return class->construct == netdev_dpdk_construct;
+}
+
+/* TODO: use dpdk malloc for entire OVS. infact huge page shld be used
+ * for all other sengments data, bss and text. */
+
+static void *
+dpdk_rte_mzalloc(size_t sz)
+{
+ void *ptr;
+
+ ptr = rte_zmalloc(OVS_VPORT_DPDK, sz, OVS_CACHE_LINE_SIZE);
+ if (ptr == NULL) {
+ out_of_memory();
+ }
+ return ptr;
+}
+
+void
+free_dpdk_buf(struct ofpbuf *b)
+{
+ struct rte_mbuf *pkt;
+
+ pkt = b->private_p;
+ if (!pkt) {
+ return;
+ }
+
+ rte_mempool_put(pkt->pool, pkt);
+}
+
+static struct dpdk_mp *
+dpdk_mp_get(int socket_id, int mtu) OVS_REQUIRES(dpdk_mutex)
+{
+ struct dpdk_mp *dmp = NULL;
+ char mp_name[RTE_MEMPOOL_NAMESIZE];
+
+ LIST_FOR_EACH (dmp, list_node, &dpdk_mp_list) {
+ if (dmp->socket_id == socket_id && dmp->mtu == mtu) {
+ dmp->refcount++;
+ return dmp;
+ }
+ }
+
+ dmp = dpdk_rte_mzalloc(sizeof *dmp);
+ dmp->socket_id = socket_id;
+ dmp->mtu = mtu;
+ dmp->refcount = 1;
+
+ snprintf(mp_name, RTE_MEMPOOL_NAMESIZE, "ovs_mp_%d", dmp->mtu);
+ dmp->mp = rte_mempool_create(mp_name, NB_MBUF, MBUF_SIZE(mtu),
+ MP_CACHE_SZ,
+ sizeof(struct rte_pktmbuf_pool_private),
+ rte_pktmbuf_pool_init, NULL,
+ rte_pktmbuf_init, NULL,
+ socket_id, 0);
+
+ if (dmp->mp == NULL) {
+ return NULL;
+ }
+
+ list_push_back(&dpdk_mp_list, &dmp->list_node);
+ return dmp;
+}
+
+static void
+dpdk_mp_put(struct dpdk_mp *dmp)
+{
+
+ if (!dmp) {
+ return;
+ }
+
+ dmp->refcount--;
+ ovs_assert(dmp->refcount >= 0);
+
+#if 0
+ /* I could not find any API to destroy mp. */
+ if (dmp->refcount == 0) {
+ list_delete(dmp->list_node);
+ /* destroy mp-pool. */
+ }
+#endif
+}
+
+static void
+check_link_status(struct netdev_dpdk *dev)
+{
+ struct rte_eth_link link;
+
+ rte_eth_link_get_nowait(dev->port_id, &link);
+
+ if (dev->link.link_status != link.link_status) {
+ seq_change(connectivity_seq_get());
+
+ dev->link_reset_cnt++;
+ dev->link = link;
+ if (dev->link.link_status) {
+ VLOG_DBG_RL(&rl, "Port %d Link Up - speed %u Mbps - %s",
+ dev->port_id, (unsigned)dev->link.link_speed,
+ (dev->link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
+ ("full-duplex") : ("half-duplex"));
+ } else {
+ VLOG_DBG_RL(&rl, "Port %d Link Down", dev->port_id);
+ }
+ }
+}
+
+static void *
+dpdk_watchdog(void *dummy OVS_UNUSED)
+{
+ struct netdev_dpdk *dev;
+
+ pthread_detach(pthread_self());
+
+ for (;;) {
+ ovs_mutex_lock(&dpdk_mutex);
+ LIST_FOR_EACH (dev, list_node, &dpdk_list) {
+ ovs_mutex_lock(&dev->mutex);
+ check_link_status(dev);
+ ovs_mutex_unlock(&dev->mutex);
+ }
+ ovs_mutex_unlock(&dpdk_mutex);
+ xsleep(DPDK_PORT_WATCHDOG_INTERVAL);
+ }
+
+ return NULL;
+}
+
+static int
+dpdk_eth_dev_init(struct netdev_dpdk *dev) OVS_REQUIRES(dpdk_mutex)
+{
+ struct rte_pktmbuf_pool_private *mbp_priv;
+ struct ether_addr eth_addr;
+ int diag;
+ int i;
+
+ if (dev->port_id < 0 || dev->port_id >= rte_eth_dev_count()) {
+ return -ENODEV;
+ }
+
+ diag = rte_eth_dev_configure(dev->port_id, NR_QUEUE, NR_QUEUE, &port_conf);
+ if (diag) {
+ VLOG_ERR("eth dev config error %d",diag);
+ return diag;
+ }
+
+ for (i = 0; i < NR_QUEUE; i++) {
+ diag = rte_eth_tx_queue_setup(dev->port_id, i, 64, 0, &tx_conf);
+ if (diag) {
+ VLOG_ERR("eth dev tx queue setup error %d",diag);
+ return diag;
+ }
+ }
+
+ for (i = 0; i < NR_QUEUE; i++) {
+ diag = rte_eth_rx_queue_setup(dev->port_id, i, 64, 0, &rx_conf,
+ dev->dpdk_mp->mp);
+ if (diag) {
+ VLOG_ERR("eth dev rx queue setup error %d",diag);
+ return diag;
+ }
+ }
+
+ diag = rte_eth_dev_start(dev->port_id);
+ if (diag) {
+ VLOG_ERR("eth dev start error %d",diag);
+ return diag;
+ }
+
+ rte_eth_promiscuous_enable(dev->port_id);
+ rte_eth_allmulticast_enable(dev->port_id);
+
+ memset(ð_addr, 0x0, sizeof(eth_addr));
+ rte_eth_macaddr_get(dev->port_id, ð_addr);
+ VLOG_INFO_RL(&rl, "Port %d: "ETH_ADDR_FMT"",
+ dev->port_id, ETH_ADDR_ARGS(eth_addr.addr_bytes));
+
+ memcpy(dev->hwaddr, eth_addr.addr_bytes, ETH_ADDR_LEN);
+ rte_eth_link_get_nowait(dev->port_id, &dev->link);
+
+ mbp_priv = rte_mempool_get_priv(dev->dpdk_mp->mp);
+ dev->buf_size = mbp_priv->mbuf_data_room_size - RTE_PKTMBUF_HEADROOM;
+
+ dev->flags = NETDEV_UP | NETDEV_PROMISC;
+ return 0;
+}
+
+static struct netdev_dpdk *
+netdev_dpdk_cast(const struct netdev *netdev)
+{
+ return CONTAINER_OF(netdev, struct netdev_dpdk, up);
+}
+
+static struct netdev *
+netdev_dpdk_alloc(void)
+{
+ struct netdev_dpdk *netdev = dpdk_rte_mzalloc(sizeof *netdev);
+ return &netdev->up;
+}
+
+static int
+netdev_dpdk_construct(struct netdev *netdev_)
+{
+ struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_);
+ unsigned int port_no;
+ char *cport;
+ int err;
+ int i;
+
+ if (rte_eal_init_ret) {
+ return rte_eal_init_ret;
+ }
+
+ ovs_mutex_lock(&dpdk_mutex);
+ cport = netdev_->name + 4; /* Names always start with "dpdk" */
+
+ if (strncmp(netdev_->name, "dpdk", 4)) {
+ err = ENODEV;
+ goto unlock_dpdk;
+ }
+
+ port_no = strtol(cport, 0, 0); /* string must be null terminated */
+
+ for (i = 0; i < NR_QUEUE; i++) {
+ rte_spinlock_init(&netdev->tx_q[i].tx_lock);
+ }
+
+ ovs_mutex_init(&netdev->mutex);
+
+ ovs_mutex_lock(&netdev->mutex);
+ netdev->flags = 0;
+
+ netdev->mtu = ETHER_MTU;
+ netdev->max_packet_len = MTU_TO_MAX_LEN(netdev->mtu);
+
+ /* TODO: need to discover device node at run time. */
+ netdev->socket_id = SOCKET0;
+ netdev->port_id = port_no;
+
+ netdev->dpdk_mp = dpdk_mp_get(netdev->socket_id, netdev->mtu);
+ if (!netdev->dpdk_mp) {
+ err = ENOMEM;
+ goto unlock_dev;
+ }
+
+ err = dpdk_eth_dev_init(netdev);
+ if (err) {
+ goto unlock_dev;
+ }
+ netdev_->n_rxq = NR_QUEUE;
+
+ list_push_back(&dpdk_list, &netdev->list_node);
+
+unlock_dev:
+ ovs_mutex_unlock(&netdev->mutex);
+unlock_dpdk:
+ ovs_mutex_unlock(&dpdk_mutex);
+ return err;
+}
+
+static void
+netdev_dpdk_destruct(struct netdev *netdev_)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_);
+
+ ovs_mutex_lock(&dev->mutex);
+ rte_eth_dev_stop(dev->port_id);
+ ovs_mutex_unlock(&dev->mutex);
+
+ ovs_mutex_lock(&dpdk_mutex);
+ list_remove(&dev->list_node);
+ dpdk_mp_put(dev->dpdk_mp);
+ ovs_mutex_unlock(&dpdk_mutex);
+
+ ovs_mutex_destroy(&dev->mutex);
+}
+
+static void
+netdev_dpdk_dealloc(struct netdev *netdev_)
+{
+ struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_);
+
+ rte_free(netdev);
+}
+
+static int
+netdev_dpdk_get_config(const struct netdev *netdev_, struct smap *args)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_);
+
+ ovs_mutex_lock(&dev->mutex);
+
+ /* TODO: Allow to configure number of queues. */
+ smap_add_format(args, "configured_rx_queues", "%u", netdev_->n_rxq);
+ smap_add_format(args, "configured_tx_queues", "%u", netdev_->n_rxq);
+ ovs_mutex_unlock(&dev->mutex);
+
+ return 0;
+}
+
+static struct netdev_rxq *
+netdev_dpdk_rxq_alloc(void)
+{
+ struct netdev_rxq_dpdk *rx = dpdk_rte_mzalloc(sizeof *rx);
+
+ return &rx->up;
+}
+
+static struct netdev_rxq_dpdk *
+netdev_rxq_dpdk_cast(const struct netdev_rxq *rx)
+{
+ return CONTAINER_OF(rx, struct netdev_rxq_dpdk, up);
+}
+
+static int
+netdev_dpdk_rxq_construct(struct netdev_rxq *rxq_)
+{
+ struct netdev_rxq_dpdk *rx = netdev_rxq_dpdk_cast(rxq_);
+ struct netdev_dpdk *netdev = netdev_dpdk_cast(rx->up.netdev);
+
+ ovs_mutex_lock(&netdev->mutex);
+ rx->port_id = netdev->port_id;
+ ovs_mutex_unlock(&netdev->mutex);
+
+ return 0;
+}
+
+static void
+netdev_dpdk_rxq_destruct(struct netdev_rxq *rxq_ OVS_UNUSED)
+{
+}
+
+static void
+netdev_dpdk_rxq_dealloc(struct netdev_rxq *rxq_)
+{
+ struct netdev_rxq_dpdk *rx = netdev_rxq_dpdk_cast(rxq_);
+
+ rte_free(rx);
+}
+
+inline static void
+dpdk_queue_flush(struct netdev_dpdk *dev, int qid)
+{
+ struct dpdk_tx_queue *txq = &dev->tx_q[qid];
+ uint32_t nb_tx;
+
+ if (txq->count == 0) {
+ return;
+ }
+ rte_spinlock_lock(&txq->tx_lock);
+ nb_tx = rte_eth_tx_burst(dev->port_id, qid, txq->burst_pkts, txq->count);
+ if (nb_tx != txq->count) {
+ /* free buffers if we couldn't transmit packets */
+ rte_mempool_put_bulk(dev->dpdk_mp->mp,
+ (void **) &txq->burst_pkts[nb_tx],
+ (txq->count - nb_tx));
+ }
+ txq->count = 0;
+ rte_spinlock_unlock(&txq->tx_lock);
+}
+
+inline static struct ofpbuf *
+build_ofpbuf(struct rte_mbuf *pkt)
+{
+ struct ofpbuf *b;
+
+ b = ofpbuf_new(0);
+ b->private_p = pkt;
+
+ b->data = pkt->pkt.data;
+ b->base = (char *)b->data - DP_NETDEV_HEADROOM - VLAN_ETH_HEADER_LEN;
+ b->allocated = pkt->buf_len;
+ b->source = OFPBUF_DPDK;
+ b->size = rte_pktmbuf_data_len(pkt);
+
+ dp_packet_pad(b);
+
+ return b;
+}
+
+static int
+netdev_dpdk_rxq_recv(struct netdev_rxq *rxq_, struct ofpbuf **packet, int *c)
+{
+ struct netdev_rxq_dpdk *rx = netdev_rxq_dpdk_cast(rxq_);
+ struct netdev *netdev = rx->up.netdev;
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
+ struct rte_mbuf *burst_pkts[MAX_RX_QUEUE_LEN];
+ int nb_rx;
+ int i;
+
+ dpdk_queue_flush(dev, rxq_->queue_id);
+
+ nb_rx = rte_eth_rx_burst(rx->port_id, rxq_->queue_id,
+ burst_pkts, MAX_RX_QUEUE_LEN);
+ if (!nb_rx) {
+ return EAGAIN;
+ }
+
+ for (i = 0; i < nb_rx; i++) {
+ packet[i] = build_ofpbuf(burst_pkts[i]);
+ }
+
+ *c = nb_rx;
+
+ return 0;
+}
+
+inline static void
+dpdk_queue_pkt(struct netdev_dpdk *dev, int qid,
+ struct rte_mbuf *pkt)
+{
+ struct dpdk_tx_queue *txq = &dev->tx_q[qid];
+ uint64_t diff_tsc;
+ uint64_t cur_tsc;
+ uint32_t nb_tx;
+
+ rte_spinlock_lock(&txq->tx_lock);
+ txq->burst_pkts[txq->count++] = pkt;
+ if (txq->count == MAX_TX_QUEUE_LEN) {
+ goto flush;
+ }
+ cur_tsc = rte_get_timer_cycles();
+ if (txq->count == 1) {
+ txq->tsc = cur_tsc;
+ }
+ diff_tsc = cur_tsc - txq->tsc;
+ if (diff_tsc >= DRAIN_TSC) {
+ goto flush;
+ }
+ rte_spinlock_unlock(&txq->tx_lock);
+ return;
+
+flush:
+ nb_tx = rte_eth_tx_burst(dev->port_id, qid, txq->burst_pkts, txq->count);
+ if (nb_tx != txq->count) {
+ /* free buffers if we couldn't transmit packets */
+ rte_mempool_put_bulk(dev->dpdk_mp->mp,
+ (void **) &txq->burst_pkts[nb_tx],
+ (txq->count - nb_tx));
+ }
+ txq->count = 0;
+ rte_spinlock_unlock(&txq->tx_lock);
+}
+
+/* Tx function. Transmit packets indefinitely */
+static void
+dpdk_do_tx_copy(struct netdev *netdev, char *buf, int size)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
+ struct rte_mbuf *pkt;
+
+ pkt = rte_pktmbuf_alloc(dev->dpdk_mp->mp);
+ if (!pkt) {
+ ovs_mutex_lock(&dev->mutex);
+ dev->stats.tx_dropped++;
+ ovs_mutex_unlock(&dev->mutex);
+ return;
+ }
+
+ /* We have to do a copy for now */
+ memcpy(pkt->pkt.data, buf, size);
+
+ rte_pktmbuf_data_len(pkt) = size;
+ rte_pktmbuf_pkt_len(pkt) = size;
+
+ dpdk_queue_pkt(dev, NON_PMD_THREAD_TX_QUEUE, pkt);
+ dpdk_queue_flush(dev, NON_PMD_THREAD_TX_QUEUE);
+}
+
+static int
+netdev_dpdk_send(struct netdev *netdev,
+ struct ofpbuf *ofpbuf, bool may_steal)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
+ int ret;
+
+ if (ofpbuf->size > dev->max_packet_len) {
+ VLOG_WARN_RL(&rl, "Too big size %d max_packet_len %d",
+ (int)ofpbuf->size , dev->max_packet_len);
+
+ ovs_mutex_lock(&dev->mutex);
+ dev->stats.tx_dropped++;
+ ovs_mutex_unlock(&dev->mutex);
+
+ ret = E2BIG;
+ goto out;
+ }
+
+ rte_prefetch0(&ofpbuf->private_p);
+ if (!may_steal ||
+ !ofpbuf->private_p || ofpbuf->source != OFPBUF_DPDK) {
+ dpdk_do_tx_copy(netdev, (char *) ofpbuf->data, ofpbuf->size);
+ } else {
+ struct rte_mbuf *pkt;
+ int qid;
+
+ pkt = ofpbuf->private_p;
+ ofpbuf->private_p = NULL;
+ rte_pktmbuf_data_len(pkt) = ofpbuf->size;
+ rte_pktmbuf_pkt_len(pkt) = ofpbuf->size;
+
+ qid = rte_lcore_id() % NR_QUEUE;
+
+ dpdk_queue_pkt(dev, qid, pkt);
+
+ ofpbuf->private_p = NULL;
+ }
+ ret = 0;
+
+out:
+ if (may_steal) {
+ ofpbuf_delete(ofpbuf);
+ }
+
+ return ret;
+}
+
+static int
+netdev_dpdk_set_etheraddr(struct netdev *netdev,
+ const uint8_t mac[ETH_ADDR_LEN])
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
+
+ ovs_mutex_lock(&dev->mutex);
+ if (!eth_addr_equals(dev->hwaddr, mac)) {
+ memcpy(dev->hwaddr, mac, ETH_ADDR_LEN);
+ }
+ ovs_mutex_unlock(&dev->mutex);
+
+ return 0;
+}
+
+static int
+netdev_dpdk_get_etheraddr(const struct netdev *netdev,
+ uint8_t mac[ETH_ADDR_LEN])
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
+
+ ovs_mutex_lock(&dev->mutex);
+ memcpy(mac, dev->hwaddr, ETH_ADDR_LEN);
+ ovs_mutex_unlock(&dev->mutex);
+
+ return 0;
+}
+
+static int
+netdev_dpdk_get_mtu(const struct netdev *netdev, int *mtup)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
+
+ ovs_mutex_lock(&dev->mutex);
+ *mtup = dev->mtu;
+ ovs_mutex_unlock(&dev->mutex);
+
+ return 0;
+}
+
+static int
+netdev_dpdk_set_mtu(const struct netdev *netdev, int mtu)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
+ int old_mtu, err;
+ struct dpdk_mp *old_mp;
+ struct dpdk_mp *mp;
+
+ ovs_mutex_lock(&dpdk_mutex);
+ ovs_mutex_lock(&dev->mutex);
+ if (dev->mtu == mtu) {
+ err = 0;
+ goto out;
+ }
+
+ mp = dpdk_mp_get(dev->socket_id, dev->mtu);
+ if (!mp) {
+ err = ENOMEM;
+ goto out;
+ }
+
+ rte_eth_dev_stop(dev->port_id);
+
+ old_mtu = dev->mtu;
+ old_mp = dev->dpdk_mp;
+ dev->dpdk_mp = mp;
+ dev->mtu = mtu;
+ dev->max_packet_len = MTU_TO_MAX_LEN(dev->mtu);
+
+ err = dpdk_eth_dev_init(dev);
+ if (err) {
+
+ dpdk_mp_put(mp);
+ dev->mtu = old_mtu;
+ dev->dpdk_mp = old_mp;
+ dev->max_packet_len = MTU_TO_MAX_LEN(dev->mtu);
+ dpdk_eth_dev_init(dev);
+ goto out;
+ }
+
+ dpdk_mp_put(old_mp);
+out:
+ ovs_mutex_unlock(&dev->mutex);
+ ovs_mutex_unlock(&dpdk_mutex);
+ return err;
+}
+
+static int
+netdev_dpdk_get_carrier(const struct netdev *netdev_, bool *carrier);
+
+static int
+netdev_dpdk_get_stats(const struct netdev *netdev, struct netdev_stats *stats)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
+ struct rte_eth_stats rte_stats;
+ bool gg;
+
+ netdev_dpdk_get_carrier(netdev, &gg);
+ ovs_mutex_lock(&dev->mutex);
+ rte_eth_stats_get(dev->port_id, &rte_stats);
+
+ *stats = dev->stats_offset;
+
+ stats->rx_packets += rte_stats.ipackets;
+ stats->tx_packets += rte_stats.opackets;
+ stats->rx_bytes += rte_stats.ibytes;
+ stats->tx_bytes += rte_stats.obytes;
+ stats->rx_errors += rte_stats.ierrors;
+ stats->tx_errors += rte_stats.oerrors;
+ stats->multicast += rte_stats.imcasts;
+
+ stats->tx_dropped += dev->stats.tx_dropped;
+ ovs_mutex_unlock(&dev->mutex);
+
+ return 0;
+}
+
+static int
+netdev_dpdk_set_stats(struct netdev *netdev, const struct netdev_stats *stats)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
+
+ ovs_mutex_lock(&dev->mutex);
+ dev->stats_offset = *stats;
+ ovs_mutex_unlock(&dev->mutex);
+
+ return 0;
+}
+
+static int
+netdev_dpdk_get_features(const struct netdev *netdev_,
+ enum netdev_features *current,
+ enum netdev_features *advertised OVS_UNUSED,
+ enum netdev_features *supported OVS_UNUSED,
+ enum netdev_features *peer OVS_UNUSED)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_);
+ struct rte_eth_link link;
+
+ ovs_mutex_lock(&dev->mutex);
+ link = dev->link;
+ ovs_mutex_unlock(&dev->mutex);
+
+ if (link.link_duplex == ETH_LINK_AUTONEG_DUPLEX) {
+ if (link.link_speed == ETH_LINK_SPEED_AUTONEG) {
+ *current = NETDEV_F_AUTONEG;
+ }
+ } else if (link.link_duplex == ETH_LINK_HALF_DUPLEX) {
+ if (link.link_speed == ETH_LINK_SPEED_10) {
+ *current = NETDEV_F_10MB_HD;
+ }
+ if (link.link_speed == ETH_LINK_SPEED_100) {
+ *current = NETDEV_F_100MB_HD;
+ }
+ if (link.link_speed == ETH_LINK_SPEED_1000) {
+ *current = NETDEV_F_1GB_HD;
+ }
+ } else if (link.link_duplex == ETH_LINK_FULL_DUPLEX) {
+ if (link.link_speed == ETH_LINK_SPEED_10) {
+ *current = NETDEV_F_10MB_FD;
+ }
+ if (link.link_speed == ETH_LINK_SPEED_100) {
+ *current = NETDEV_F_100MB_FD;
+ }
+ if (link.link_speed == ETH_LINK_SPEED_1000) {
+ *current = NETDEV_F_1GB_FD;
+ }
+ if (link.link_speed == ETH_LINK_SPEED_10000) {
+ *current = NETDEV_F_10GB_FD;
+ }
+ }
+
+ return 0;
+}
+
+static int
+netdev_dpdk_get_ifindex(const struct netdev *netdev)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev);
+ int ifindex;
+
+ ovs_mutex_lock(&dev->mutex);
+ ifindex = dev->port_id;
+ ovs_mutex_unlock(&dev->mutex);
+
+ return ifindex;
+}
+
+static int
+netdev_dpdk_get_carrier(const struct netdev *netdev_, bool *carrier)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_);
+
+ ovs_mutex_lock(&dev->mutex);
+ check_link_status(dev);
+ *carrier = dev->link.link_status;
+ ovs_mutex_unlock(&dev->mutex);
+
+ return 0;
+}
+
+static long long int
+netdev_dpdk_get_carrier_resets(const struct netdev *netdev_)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_);
+ long long int carrier_resets;
+
+ ovs_mutex_lock(&dev->mutex);
+ carrier_resets = dev->link_reset_cnt;
+ ovs_mutex_unlock(&dev->mutex);
+
+ return carrier_resets;
+}
+
+static int
+netdev_dpdk_set_miimon(struct netdev *netdev_ OVS_UNUSED,
+ long long int interval OVS_UNUSED)
+{
+ return 0;
+}
+
+static int
+netdev_dpdk_update_flags__(struct netdev_dpdk *dev,
+ enum netdev_flags off, enum netdev_flags on,
+ enum netdev_flags *old_flagsp)
+ OVS_REQUIRES(dev->mutex)
+{
+ int err;
+
+ if ((off | on) & ~(NETDEV_UP | NETDEV_PROMISC)) {
+ return EINVAL;
+ }
+
+ *old_flagsp = dev->flags;
+ dev->flags |= on;
+ dev->flags &= ~off;
+
+ if (dev->flags == *old_flagsp) {
+ return 0;
+ }
+
+ if (dev->flags & NETDEV_UP) {
+ err = rte_eth_dev_start(dev->port_id);
+ if (err)
+ return err;
+ }
+
+ if (dev->flags & NETDEV_PROMISC) {
+ rte_eth_promiscuous_enable(dev->port_id);
+ }
+
+ if (!(dev->flags & NETDEV_UP)) {
+ rte_eth_dev_stop(dev->port_id);
+ }
+
+ return 0;
+}
+
+static int
+netdev_dpdk_update_flags(struct netdev *netdev_,
+ enum netdev_flags off, enum netdev_flags on,
+ enum netdev_flags *old_flagsp)
+{
+ struct netdev_dpdk *netdev = netdev_dpdk_cast(netdev_);
+ int error;
+
+ ovs_mutex_lock(&netdev->mutex);
+ error = netdev_dpdk_update_flags__(netdev, off, on, old_flagsp);
+ ovs_mutex_unlock(&netdev->mutex);
+
+ return error;
+}
+
+static int
+netdev_dpdk_get_status(const struct netdev *netdev_, struct smap *args)
+{
+ struct netdev_dpdk *dev = netdev_dpdk_cast(netdev_);
+ struct rte_eth_dev_info dev_info;
+
+ if (dev->port_id <= 0)
+ return ENODEV;
+
+ ovs_mutex_lock(&dev->mutex);
+ rte_eth_dev_info_get(dev->port_id, &dev_info);
+ ovs_mutex_unlock(&dev->mutex);
+
+ smap_add_format(args, "driver_name", "%s", dev_info.driver_name);
+
+ smap_add_format(args, "numa_id", "%d", rte_eth_dev_socket_id(dev->port_id));
+ smap_add_format(args, "driver_name", "%s", dev_info.driver_name);
+ smap_add_format(args, "min_rx_bufsize", "%u", dev_info.min_rx_bufsize);
+ smap_add_format(args, "max_rx_pktlen", "%u", dev_info.max_rx_pktlen);
+ smap_add_format(args, "max_rx_queues", "%u", dev_info.max_rx_queues);
+ smap_add_format(args, "max_tx_queues", "%u", dev_info.max_tx_queues);
+ smap_add_format(args, "max_mac_addrs", "%u", dev_info.max_mac_addrs);
+ smap_add_format(args, "max_hash_mac_addrs", "%u", dev_info.max_hash_mac_addrs);
+ smap_add_format(args, "max_vfs", "%u", dev_info.max_vfs);
+ smap_add_format(args, "max_vmdq_pools", "%u", dev_info.max_vmdq_pools);
+
+ smap_add_format(args, "pci-vendor_id", "0x%u", dev_info.pci_dev->id.vendor_id);
+ smap_add_format(args, "pci-device_id", "0x%x", dev_info.pci_dev->id.device_id);
+
+ return 0;
+}
+
+static void
+netdev_dpdk_set_admin_state__(struct netdev_dpdk *dev, bool admin_state)
+ OVS_REQUIRES(dev->mutex)
+{
+ enum netdev_flags old_flags;
+
+ if (admin_state) {
+ netdev_dpdk_update_flags__(dev, 0, NETDEV_UP, &old_flags);
+ } else {
+ netdev_dpdk_update_flags__(dev, NETDEV_UP, 0, &old_flags);
+ }
+}
+
+static void
+netdev_dpdk_set_admin_state(struct unixctl_conn *conn, int argc,
+ const char *argv[], void *aux OVS_UNUSED)
+{
+ bool up;
+
+ if (!strcasecmp(argv[argc - 1], "up")) {
+ up = true;
+ } else if ( !strcasecmp(argv[argc - 1], "down")) {
+ up = false;
+ } else {
+ unixctl_command_reply_error(conn, "Invalid Admin State");
+ return;
+ }
+
+ if (argc > 2) {
+ struct netdev *netdev = netdev_from_name(argv[1]);
+ if (netdev && is_dpdk_class(netdev->netdev_class)) {
+ struct netdev_dpdk *dpdk_dev = netdev_dpdk_cast(netdev);
+
+ ovs_mutex_lock(&dpdk_dev->mutex);
+ netdev_dpdk_set_admin_state__(dpdk_dev, up);
+ ovs_mutex_unlock(&dpdk_dev->mutex);
+
+ netdev_close(netdev);
+ } else {
+ unixctl_command_reply_error(conn, "Not a DPDK Interface");
+ netdev_close(netdev);
+ return;
+ }
+ } else {
+ struct netdev_dpdk *netdev;
+
+ ovs_mutex_lock(&dpdk_mutex);
+ LIST_FOR_EACH (netdev, list_node, &dpdk_list) {
+ ovs_mutex_lock(&netdev->mutex);
+ netdev_dpdk_set_admin_state__(netdev, up);
+ ovs_mutex_unlock(&netdev->mutex);
+ }
+ ovs_mutex_unlock(&dpdk_mutex);
+ }
+ unixctl_command_reply(conn, "OK");
+}
+
+static int
+dpdk_class_init(void)
+{
+ int result;
+
+ if (rte_eal_init_ret) {
+ return 0;
+ }
+
+ result = rte_pmd_init_all();
+ if (result) {
+ VLOG_ERR("Cannot init PMD");
+ return result;
+ }
+
+ result = rte_eal_pci_probe();
+ if (result) {
+ VLOG_ERR("Cannot probe PCI");
+ return result;
+ }
+
+ if (rte_eth_dev_count() < 1) {
+ VLOG_ERR("No Ethernet devices found. Try assigning ports to UIO.");
+ }
+
+ VLOG_INFO("Ethernet Device Count: %d", (int)rte_eth_dev_count());
+
+ list_init(&dpdk_list);
+ list_init(&dpdk_mp_list);
+
+ unixctl_command_register("netdev-dpdk/set-admin-state",
+ "[netdev] up|down", 1, 2,
+ netdev_dpdk_set_admin_state, NULL);
+
+ xpthread_create(&watchdog_thread, NULL, dpdk_watchdog, NULL);
+ return 0;
+}
+
+static struct netdev_class netdev_dpdk_class = {
+ "dpdk",
+ dpdk_class_init, /* init */
+ NULL, /* netdev_dpdk_run */
+ NULL, /* netdev_dpdk_wait */
+
+ netdev_dpdk_alloc,
+ netdev_dpdk_construct,
+ netdev_dpdk_destruct,
+ netdev_dpdk_dealloc,
+ netdev_dpdk_get_config,
+ NULL, /* netdev_dpdk_set_config */
+ NULL, /* get_tunnel_config */
+
+ netdev_dpdk_send, /* send */
+ NULL, /* send_wait */
+
+ netdev_dpdk_set_etheraddr,
+ netdev_dpdk_get_etheraddr,
+ netdev_dpdk_get_mtu,
+ netdev_dpdk_set_mtu,
+ netdev_dpdk_get_ifindex,
+ netdev_dpdk_get_carrier,
+ netdev_dpdk_get_carrier_resets,
+ netdev_dpdk_set_miimon,
+ netdev_dpdk_get_stats,
+ netdev_dpdk_set_stats,
+ netdev_dpdk_get_features,
+ NULL, /* set_advertisements */
+
+ NULL, /* set_policing */
+ NULL, /* get_qos_types */
+ NULL, /* get_qos_capabilities */
+ NULL, /* get_qos */
+ NULL, /* set_qos */
+ NULL, /* get_queue */
+ NULL, /* set_queue */
+ NULL, /* delete_queue */
+ NULL, /* get_queue_stats */
+ NULL, /* queue_dump_start */
+ NULL, /* queue_dump_next */
+ NULL, /* queue_dump_done */
+ NULL, /* dump_queue_stats */
+
+ NULL, /* get_in4 */
+ NULL, /* set_in4 */
+ NULL, /* get_in6 */
+ NULL, /* add_router */
+ NULL, /* get_next_hop */
+ netdev_dpdk_get_status,
+ NULL, /* arp_lookup */
+
+ netdev_dpdk_update_flags,
+
+ netdev_dpdk_rxq_alloc,
+ netdev_dpdk_rxq_construct,
+ netdev_dpdk_rxq_destruct,
+ netdev_dpdk_rxq_dealloc,
+ netdev_dpdk_rxq_recv,
+ NULL, /* rxq_wait */
+ NULL, /* rxq_drain */
+};
+
+int
+dpdk_init(int argc, char **argv)
+{
+ int result;
+
+ if (strcmp(argv[1], "--dpdk"))
+ return 0;
+
+ argc--;
+ argv++;
+
+ /* Make sure things are initialized ... */
+ result = rte_eal_init(argc, argv);
+ if (result < 0)
+ ovs_abort(result, "Cannot init EAL\n");
+
+ rte_memzone_dump();
+ rte_eal_init_ret = 0;
+
+ return result;
+}
+
+void
+netdev_dpdk_register(void)
+{
+ netdev_register_provider(&netdev_dpdk_class);
+}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff