uint32_t cq_mgr_mlx5::clean_cq()
{
uint32_t ret_total = 0;
uint64_t cq_poll_sn = 0;
mem_buf_desc_t* buff;
if (m_b_is_rx) {
if (m_rq) {
buff_status_e status = BS_OK;
while((buff = poll(status))) {
if (process_cq_element_rx( buff, status)) {
m_rx_queue.push_back(buff);
}
++ret_total;
}
update_global_sn(cq_poll_sn, ret_total);
}
} else {//Tx
int ret = 0;
/* coverity[stack_use_local_overflow] */
vma_ibv_wc wce[MCE_MAX_CQ_POLL_BATCH];
while ((ret = cq_mgr::poll(wce, MCE_MAX_CQ_POLL_BATCH, &cq_poll_sn)) > 0) {
for (int i = 0; i < ret; i++) {
buff = process_cq_element_tx(&wce[i]);
if (buff)
m_rx_queue.push_back(buff);
}
ret_total += ret;
}
}
return ret_total;
}
cq_mgr::~cq_mgr()
{
cq_logdbg("destroying CQ as %s", (m_b_is_rx?"Rx":"Tx"));
int ret = 0;
uint32_t ret_total = 0;
uint64_t cq_poll_sn = 0;
mem_buf_desc_t* buff = NULL;
struct ibv_wc wce[MCE_MAX_CQ_POLL_BATCH];
while ((ret = poll(wce, MCE_MAX_CQ_POLL_BATCH, &cq_poll_sn)) > 0) {
for (int i = 0; i < ret; i++) {
if (m_b_is_rx) {
buff = process_cq_element_rx(&wce[i]);
} else {
buff = process_cq_element_tx(&wce[i]);
}
if (buff)
m_rx_queue.push_back(buff);
}
ret_total += ret;
}
m_b_was_drained = true;
if (ret_total > 0) {
cq_logdbg("Drained %d wce", ret_total);
}
if (m_rx_queue.size() + m_rx_pool.size()) {
cq_logdbg("Returning %d buffers to global Rx pool (ready queue %d, free pool %d))", m_rx_queue.size() + m_rx_pool.size(), m_rx_queue.size(), m_rx_pool.size());
g_buffer_pool_rx->put_buffers_thread_safe(&m_rx_queue, m_rx_queue.size());
m_p_cq_stat->n_rx_sw_queue_len = m_rx_queue.size();
g_buffer_pool_rx->put_buffers_thread_safe(&m_rx_pool, m_rx_pool.size());
m_p_cq_stat->n_buffer_pool_len = m_rx_pool.size();
}
cq_logfunc("destroying ibv_cq");
IF_VERBS_FAILURE(ibv_destroy_cq(m_p_ibv_cq)) {
cq_logerr("destroy cq failed (errno=%d %m)", errno);
} ENDIF_VERBS_FAILURE;
statistics_print();
if (m_b_is_rx)
vma_stats_instance_remove_cq_block(m_p_cq_stat);
cq_logdbg("done");
}
