/**
* test main entrance for library sched
*/
static int
test_sched(void)
{
struct rte_mempool *mp = NULL;
struct rte_sched_port *port = NULL;
uint32_t pipe;
struct rte_mbuf *in_mbufs[10];
struct rte_mbuf *out_mbufs[10];
int i;
int err;
mp = create_mempool();
port_param.socket = 0;
port_param.rate = (uint64_t) 10000 * 1000 * 1000 / 8;
port = rte_sched_port_config(&port_param);
VERIFY(port != NULL, "Error config sched port\n");
err = rte_sched_subport_config(port, SUBPORT, subport_param);
VERIFY(err == 0, "Error config sched, err=%d\n", err);
for (pipe = 0; pipe < port_param.n_pipes_per_subport; pipe ++) {
err = rte_sched_pipe_config(port, SUBPORT, pipe, 0);
VERIFY(err == 0, "Error config sched pipe %u, err=%d\n", pipe, err);
}
for (i = 0; i < 10; i++) {
in_mbufs[i] = rte_pktmbuf_alloc(mp);
prepare_pkt(in_mbufs[i]);
}
err = rte_sched_port_enqueue(port, in_mbufs, 10);
VERIFY(err == 10, "Wrong enqueue, err=%d\n", err);
err = rte_sched_port_dequeue(port, out_mbufs, 10);
VERIFY(err == 10, "Wrong dequeue, err=%d\n", err);
for (i = 0; i < 10; i++) {
enum rte_meter_color color;
uint32_t subport, traffic_class, queue;
color = rte_sched_port_pkt_read_color(out_mbufs[i]);
VERIFY(color == e_RTE_METER_YELLOW, "Wrong color\n");
rte_sched_port_pkt_read_tree_path(out_mbufs[i],
&subport, &pipe, &traffic_class, &queue);
VERIFY(subport == SUBPORT, "Wrong subport\n");
VERIFY(pipe == PIPE, "Wrong pipe\n");
VERIFY(traffic_class == TC, "Wrong traffic_class\n");
VERIFY(queue == QUEUE, "Wrong queue\n");
}
struct rte_sched_subport_stats subport_stats;
uint32_t tc_ov;
rte_sched_subport_read_stats(port, SUBPORT, &subport_stats, &tc_ov);
//VERIFY(subport_stats.n_pkts_tc[TC-1] == 10, "Wrong subport stats\n");
struct rte_sched_queue_stats queue_stats;
uint16_t qlen;
rte_sched_queue_read_stats(port, QUEUE, &queue_stats, &qlen);
//VERIFY(queue_stats.n_pkts == 10, "Wrong queue stats\n");
rte_sched_port_free(port);
return 0;
}
/**
* Dequeue mbufs from output queue and send to ethernet port.
* This function is called from I/O (Output) thread.
*/
static inline void
app_lcore_io_tx(struct app_lcore_params_io *lp,
uint32_t n_workers,
uint32_t bsz_rd,
uint32_t bsz_wr) {
uint32_t worker;
for (worker = 0; worker < n_workers; worker ++) {
uint32_t i;
for (i = 0; i < lp->tx.n_nic_ports; i ++) {
uint8_t port = lp->tx.nic_ports[i];
struct rte_ring *ring = lp->tx.rings[port][worker];
struct interface *ifp;
uint32_t n_mbufs, n_pkts;
int ret;
n_mbufs = lp->tx.mbuf_out[port].n_mbufs;
ret = rte_ring_sc_dequeue_burst(ring,
(void **) &lp->tx.mbuf_out[port].array[n_mbufs],
bsz_rd - n_mbufs);
if (unlikely(ret == 0)) {
continue;
}
n_mbufs += (uint32_t)ret;
#if APP_IO_TX_DROP_ALL_PACKETS
{
uint32_t j;
APP_IO_TX_PREFETCH0(lp->tx.mbuf_out[port].array[0]);
APP_IO_TX_PREFETCH0(lp->tx.mbuf_out[port].array[1]);
for (j = 0; j < n_mbufs; j ++) {
if (likely(j < n_mbufs - 2)) {
APP_IO_TX_PREFETCH0(lp->tx.mbuf_out[port].array[j + 2]);
}
rte_pktmbuf_free(lp->tx.mbuf_out[port].array[j]);
}
lp->tx.mbuf_out[port].n_mbufs = 0;
continue;
}
#endif
if (unlikely(n_mbufs < bsz_wr)) {
lp->tx.mbuf_out[port].n_mbufs = n_mbufs;
lp->tx.mbuf_out_flush[port] = 1;
continue;
}
ifp = dpdk_interface_lookup(port);
if (ifp != NULL && ifp->sched_port != NULL) {
struct lagopus_packet *pkt;
struct rte_mbuf *m;
int qidx, color;
for (i = 0; i < n_mbufs; i++) {
m = lp->tx.mbuf_out[port].array[i];
pkt = (struct lagopus_packet *)
(m->buf_addr + APP_DEFAULT_MBUF_LOCALDATA_OFFSET);
if (unlikely(pkt->queue_id != 0)) {
qidx = dpdk_interface_queue_id_to_index(ifp, pkt->queue_id);
color = rte_meter_trtcm_color_blind_check(&ifp->ifqueue.meters[qidx],
rte_rdtsc(),
OS_M_PKTLEN(m));
rte_sched_port_pkt_write(m, 0, 0, 0, qidx, color);
}
}
n_mbufs = rte_sched_port_enqueue(ifp->sched_port,
lp->tx.mbuf_out[port].array,
n_mbufs);
n_mbufs = rte_sched_port_dequeue(ifp->sched_port,
lp->tx.mbuf_out[port].array,
n_mbufs);
}
DPRINTF("send %d pkts\n", n_mbufs);
n_pkts = rte_eth_tx_burst(port,
0,
lp->tx.mbuf_out[port].array,
(uint16_t) n_mbufs);
DPRINTF("sent %d pkts\n", n_pkts);
#if APP_STATS
lp->tx.nic_ports_iters[port] ++;
lp->tx.nic_ports_count[port] += n_pkts;
if (unlikely(lp->tx.nic_ports_iters[port] == APP_STATS)) {
unsigned lcore = rte_lcore_id();
printf("\t\t\tI/O TX %u out (port %u): avg burst size = %.2f\n",
lcore,
(unsigned) port,
((double) lp->tx.nic_ports_count[port]) / ((double)
lp->tx.nic_ports_iters[port]));
lp->tx.nic_ports_iters[port] = 0;
lp->tx.nic_ports_count[port] = 0;
}
#endif
if (unlikely(n_pkts < n_mbufs)) {
uint32_t k;
for (k = n_pkts; k < n_mbufs; k ++) {
struct rte_mbuf *pkt_to_free = lp->tx.mbuf_out[port].array[k];
rte_pktmbuf_free(pkt_to_free);
}
}
lp->tx.mbuf_out[port].n_mbufs = 0;
lp->tx.mbuf_out_flush[port] = 0;
}
}
}
