/* Try to increment stats for all vswitch counters, which should
* succeed */
static void
test_stats_vswitch_increment(int argc, char *argv[])
{
stats_init();
stats_vswitch_clear();
stats_vswitch_rx_drop_increment(23);
stats_vswitch_tx_drop_increment(23);
stats_vswitch_rx_drop_increment(19);
stats_vswitch_tx_drop_increment(19);
}
/*
* Function sends unmatched packets to vswitchd.
*/
void
send_packet_to_vswitchd(struct rte_mbuf *mbuf, struct dpdk_upcall *info)
{
int rslt = 0;
void *mbuf_ptr = NULL;
const uint64_t dpif_send_tsc =
(rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * DPIF_SEND_US;
uint64_t cur_tsc = 0;
uint64_t diff_tsc = 0;
static uint64_t prev_tsc = 0;
/* send one packet, delete information about segments */
rte_pktmbuf_pkt_len(mbuf) = rte_pktmbuf_data_len(mbuf);
/* allocate space before the packet for the upcall info */
mbuf_ptr = rte_pktmbuf_prepend(mbuf, sizeof(*info));
if (mbuf_ptr == NULL) {
printf("Cannot prepend upcall info\n");
rte_pktmbuf_free(mbuf);
stats_vswitch_tx_drop_increment(INC_BY_1);
stats_vport_tx_drop_increment(VSWITCHD, INC_BY_1);
return;
}
rte_memcpy(mbuf_ptr, info, sizeof(*info));
/* send the packet and the upcall info to the daemon */
rslt = rte_ring_mp_enqueue(vswitchd_packet_ring, mbuf);
if (rslt < 0) {
if (rslt == -ENOBUFS) {
rte_pktmbuf_free(mbuf);
stats_vswitch_tx_drop_increment(INC_BY_1);
stats_vport_tx_drop_increment(VSWITCHD, INC_BY_1);
return;
} else {
stats_vport_overrun_increment(VSWITCHD, INC_BY_1);
}
}
stats_vport_tx_increment(VSWITCHD, INC_BY_1);
cur_tsc = rte_rdtsc();
diff_tsc = cur_tsc - prev_tsc;
prev_tsc = cur_tsc;
/* Only signal the daemon after 100 milliseconds */
if (unlikely(diff_tsc > dpif_send_tsc))
send_signal_to_dpif();
}
/* Try to get stats for all vswitch, which should succeed */
static void
test_stats_vswitch_get(int argc, char *argv[])
{
stats_init();
stats_vswitch_clear();
/* increment stats so there's something to check */
stats_vswitch_rx_drop_increment(23);
stats_vswitch_tx_drop_increment(23);
stats_vswitch_rx_drop_increment(19);
stats_vswitch_tx_drop_increment(19);
assert(stats_vswitch_rx_drop_get() == 42);
assert(stats_vswitch_tx_drop_get() == 42);
}
/*
* Send a reply message to the vswitchd
*/
static void
send_reply_to_vswitchd(struct dpdk_message *reply)
{
struct rte_mbuf *mbuf = NULL;
void *pktmbuf_data = NULL;
int rslt = 0;
/* Preparing the buffer to send */
mbuf = rte_pktmbuf_alloc(pktmbuf_pool);
if (!mbuf) {
RTE_LOG(WARNING, APP, "Error : Unable to allocate an mbuf "
": %s : %d", __FUNCTION__, __LINE__);
stats_vswitch_tx_drop_increment(INC_BY_1);
stats_vport_rx_drop_increment(VSWITCHD, INC_BY_1);
return;
}
pktmbuf_data = rte_pktmbuf_mtod(mbuf, void *);
rte_memcpy(pktmbuf_data, reply, sizeof(*reply));
rte_pktmbuf_data_len(mbuf) = sizeof(*reply);
/* Sending the buffer to vswitchd */
rslt = rte_ring_mp_enqueue(vswitchd_reply_ring, (void *)mbuf);
if (rslt < 0) {
if (rslt == -ENOBUFS) {
rte_pktmbuf_free(mbuf);
stats_vswitch_tx_drop_increment(INC_BY_1);
stats_vport_rx_drop_increment(VSWITCHD, INC_BY_1);
} else {
stats_vport_overrun_increment(VSWITCHD, INC_BY_1);
stats_vport_rx_increment(VSWITCHD, INC_BY_1);
}
} else {
stats_vport_rx_increment(VSWITCHD, INC_BY_1);
}
}
