(void)nb_pkts;
return 0;
}
+
+#if defined(RTE_TOOLCHAIN_GCC)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#elif defined(RTE_TOOLCHAIN_CLANG)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wcast-qual"
+#endif
+
+/* This function loopbacks all the received packets.*/
+uint16_t
+dpaa2_dev_loopback_rx(void *queue,
+ struct rte_mbuf **bufs __rte_unused,
+ uint16_t nb_pkts)
+{
+ /* Function receive frames for a given device and VQ*/
+ struct dpaa2_queue *dpaa2_q = (struct dpaa2_queue *)queue;
+ struct qbman_result *dq_storage, *dq_storage1 = NULL;
+ uint32_t fqid = dpaa2_q->fqid;
+ int ret, num_rx = 0, num_tx = 0, pull_size;
+ uint8_t pending, status;
+ struct qbman_swp *swp;
+ struct qbman_fd *fd[DPAA2_LX2_DQRR_RING_SIZE];
+ struct qbman_pull_desc pulldesc;
+ struct qbman_eq_desc eqdesc;
+ struct queue_storage_info_t *q_storage = dpaa2_q->q_storage;
+ struct rte_eth_dev_data *eth_data = dpaa2_q->eth_data;
+ struct dpaa2_dev_priv *priv = eth_data->dev_private;
+ struct dpaa2_queue *tx_q = priv->tx_vq[0];
+ /* todo - currently we are using 1st TX queue only for loopback*/
+
+ if (unlikely(!DPAA2_PER_LCORE_ETHRX_DPIO)) {
+ ret = dpaa2_affine_qbman_ethrx_swp();
+ if (ret) {
+ DPAA2_PMD_ERR("Failure in affining portal");
+ return 0;
+ }
+ }
+ swp = DPAA2_PER_LCORE_ETHRX_PORTAL;
+ pull_size = (nb_pkts > dpaa2_dqrr_size) ? dpaa2_dqrr_size : nb_pkts;
+ if (unlikely(!q_storage->active_dqs)) {
+ q_storage->toggle = 0;
+ dq_storage = q_storage->dq_storage[q_storage->toggle];
+ q_storage->last_num_pkts = pull_size;
+ qbman_pull_desc_clear(&pulldesc);
+ qbman_pull_desc_set_numframes(&pulldesc,
+ q_storage->last_num_pkts);
+ qbman_pull_desc_set_fq(&pulldesc, fqid);
+ qbman_pull_desc_set_storage(&pulldesc, dq_storage,
+ (size_t)(DPAA2_VADDR_TO_IOVA(dq_storage)), 1);
+ if (check_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index)) {
+ while (!qbman_check_command_complete(
+ get_swp_active_dqs(
+ DPAA2_PER_LCORE_ETHRX_DPIO->index)))
+ ;
+ clear_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index);
+ }
+ while (1) {
+ if (qbman_swp_pull(swp, &pulldesc)) {
+ DPAA2_PMD_DP_DEBUG(
+ "VDQ command not issued.QBMAN busy\n");
+ /* Portal was busy, try again */
+ continue;
+ }
+ break;
+ }
+ q_storage->active_dqs = dq_storage;
+ q_storage->active_dpio_id = DPAA2_PER_LCORE_ETHRX_DPIO->index;
+ set_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index,
+ dq_storage);
+ }
+
+ dq_storage = q_storage->active_dqs;
+ rte_prefetch0((void *)(size_t)(dq_storage));
+ rte_prefetch0((void *)(size_t)(dq_storage + 1));
+
+ /* Prepare next pull descriptor. This will give space for the
+ * prefething done on DQRR entries
+ */
+ q_storage->toggle ^= 1;
+ dq_storage1 = q_storage->dq_storage[q_storage->toggle];
+ qbman_pull_desc_clear(&pulldesc);
+ qbman_pull_desc_set_numframes(&pulldesc, pull_size);
+ qbman_pull_desc_set_fq(&pulldesc, fqid);
+ qbman_pull_desc_set_storage(&pulldesc, dq_storage1,
+ (size_t)(DPAA2_VADDR_TO_IOVA(dq_storage1)), 1);
+
+ /*Prepare enqueue descriptor*/
+ qbman_eq_desc_clear(&eqdesc);
+ qbman_eq_desc_set_no_orp(&eqdesc, DPAA2_EQ_RESP_ERR_FQ);
+ qbman_eq_desc_set_response(&eqdesc, 0, 0);
+ qbman_eq_desc_set_fq(&eqdesc, tx_q->fqid);
+
+ /* Check if the previous issued command is completed.
+ * Also seems like the SWP is shared between the Ethernet Driver
+ * and the SEC driver.
+ */
+ while (!qbman_check_command_complete(dq_storage))
+ ;
+ if (dq_storage == get_swp_active_dqs(q_storage->active_dpio_id))
+ clear_swp_active_dqs(q_storage->active_dpio_id);
+
+ pending = 1;
+
+ do {
+ /* Loop until the dq_storage is updated with
+ * new token by QBMAN
+ */
+ while (!qbman_check_new_result(dq_storage))
+ ;
+ rte_prefetch0((void *)((size_t)(dq_storage + 2)));
+ /* Check whether Last Pull command is Expired and
+ * setting Condition for Loop termination
+ */
+ if (qbman_result_DQ_is_pull_complete(dq_storage)) {
+ pending = 0;
+ /* Check for valid frame. */
+ status = qbman_result_DQ_flags(dq_storage);
+ if (unlikely((status & QBMAN_DQ_STAT_VALIDFRAME) == 0))
+ continue;
+ }
+ fd[num_rx] = (struct qbman_fd *)qbman_result_DQ_fd(dq_storage);
+
+ dq_storage++;
+ num_rx++;
+ } while (pending);
+
+ while (num_tx < num_rx) {
+ num_tx += qbman_swp_enqueue_multiple_fd(swp, &eqdesc,
+ &fd[num_tx], 0, num_rx - num_tx);
+ }
+
+ if (check_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index)) {
+ while (!qbman_check_command_complete(
+ get_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index)))
+ ;
+ clear_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index);
+ }
+ /* issue a volatile dequeue command for next pull */
+ while (1) {
+ if (qbman_swp_pull(swp, &pulldesc)) {
+ DPAA2_PMD_DP_DEBUG("VDQ command is not issued."
+ "QBMAN is busy (2)\n");
+ continue;
+ }
+ break;
+ }
+ q_storage->active_dqs = dq_storage1;
+ q_storage->active_dpio_id = DPAA2_PER_LCORE_ETHRX_DPIO->index;
+ set_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index, dq_storage1);
+
+ dpaa2_q->rx_pkts += num_rx;
+ dpaa2_q->tx_pkts += num_tx;
+
+ return 0;
+}
+#if defined(RTE_TOOLCHAIN_GCC)
+#pragma GCC diagnostic pop
+#elif defined(RTE_TOOLCHAIN_CLANG)
+#pragma clang diagnostic pop
+#endif
git.droids-corp.org / dpdk.git / blobdiff