static int
exec_burst(uint32_t flags, int lcore)
{
unsigned i, portid, nb_tx = 0;
struct lcore_conf *conf;
uint32_t pkt_per_port;
int num, idx = 0;
int diff_tsc;
conf = &lcore_conf[lcore];
pkt_per_port = MAX_TRAFFIC_BURST;
num = pkt_per_port;
rte_atomic64_init(&start);
/* start polling thread, but not actually poll yet */
rte_eal_remote_launch(poll_burst,
(void *)&pkt_per_port, lcore);
/* Only when polling first */
if (flags == SC_BURST_POLL_FIRST)
rte_atomic64_set(&start, 1);
/* start xmit */
while (num) {
nb_tx = RTE_MIN(MAX_PKT_BURST, num);
for (i = 0; i < conf->nb_ports; i++) {
portid = conf->portlist[i];
rte_eth_tx_burst(portid, 0,
&tx_burst[idx], nb_tx);
idx += nb_tx;
}
num -= nb_tx;
}
sleep(5);
/* only when polling second */
if (flags == SC_BURST_XMIT_FIRST)
rte_atomic64_set(&start, 1);
/* wait for polling finished */
diff_tsc = rte_eal_wait_lcore(lcore);
if (diff_tsc < 0) {
printf("exec_burst: Failed to measure cycles per packet\n");
return -1;
}
printf("Result: %d cycles per packet\n", diff_tsc);
return 0;
}
static void
cn23xx_pfvf_hs_callback(struct lio_device *lio_dev,
struct lio_mbox_cmd *cmd, void *arg)
{
uint32_t major = 0;
PMD_INIT_FUNC_TRACE();
rte_memcpy((uint8_t *)&lio_dev->pfvf_hsword, cmd->msg.s.params, 6);
if (cmd->recv_len > 1) {
struct lio_version *lio_ver = (struct lio_version *)cmd->data;
major = lio_ver->major;
major = major << 16;
}
rte_atomic64_set((rte_atomic64_t *)arg, major | 1);
}
int
cn23xx_pfvf_handshake(struct lio_device *lio_dev)
{
struct lio_mbox_cmd mbox_cmd;
struct lio_version *lio_ver = (struct lio_version *)&mbox_cmd.data[0];
uint32_t q_no, count = 0;
rte_atomic64_t status;
uint32_t pfmajor;
uint32_t vfmajor;
uint32_t ret;
PMD_INIT_FUNC_TRACE();
/* Sending VF_ACTIVE indication to the PF driver */
lio_dev_dbg(lio_dev, "requesting info from PF\n");
mbox_cmd.msg.mbox_msg64 = 0;
mbox_cmd.msg.s.type = LIO_MBOX_REQUEST;
mbox_cmd.msg.s.resp_needed = 1;
mbox_cmd.msg.s.cmd = LIO_VF_ACTIVE;
mbox_cmd.msg.s.len = 2;
mbox_cmd.data[0] = 0;
lio_ver->major = LIO_BASE_MAJOR_VERSION;
lio_ver->minor = LIO_BASE_MINOR_VERSION;
lio_ver->micro = LIO_BASE_MICRO_VERSION;
mbox_cmd.q_no = 0;
mbox_cmd.recv_len = 0;
mbox_cmd.recv_status = 0;
mbox_cmd.fn = (lio_mbox_callback)cn23xx_pfvf_hs_callback;
mbox_cmd.fn_arg = (void *)&status;
if (lio_mbox_write(lio_dev, &mbox_cmd)) {
lio_dev_err(lio_dev, "Write to mailbox failed\n");
return -1;
}
rte_atomic64_set(&status, 0);
do {
rte_delay_ms(1);
} while ((rte_atomic64_read(&status) == 0) && (count++ < 10000));
ret = rte_atomic64_read(&status);
if (ret == 0) {
lio_dev_err(lio_dev, "cn23xx_pfvf_handshake timeout\n");
return -1;
}
for (q_no = 0; q_no < lio_dev->num_iqs; q_no++)
lio_dev->instr_queue[q_no]->txpciq.s.pkind =
lio_dev->pfvf_hsword.pkind;
vfmajor = LIO_BASE_MAJOR_VERSION;
pfmajor = ret >> 16;
if (pfmajor != vfmajor) {
lio_dev_err(lio_dev,
"VF LiquidIO driver (major version %d) is not compatible with LiquidIO PF driver (major version %d)\n",
vfmajor, pfmajor);
ret = -EPERM;
} else {
lio_dev_dbg(lio_dev,
"VF LiquidIO driver (major version %d), LiquidIO PF driver (major version %d)\n",
vfmajor, pfmajor);
ret = 0;
}
lio_dev_dbg(lio_dev, "got data from PF pkind is %d\n",
lio_dev->pfvf_hsword.pkind);
return ret;
}