+static int ftag_check_handler(__rte_unused const char *key,
+ const char *value, __rte_unused void *opaque)
+{
+ if (strcmp(value, "1"))
+ return -1;
+
+ return 0;
+}
+
+static int
+fm10k_check_ftag(struct rte_devargs *devargs)
+{
+ struct rte_kvargs *kvlist;
+ const char *ftag_key = "enable_ftag";
+
+ if (devargs == NULL)
+ return 0;
+
+ kvlist = rte_kvargs_parse(devargs->args, NULL);
+ if (kvlist == NULL)
+ return 0;
+
+ if (!rte_kvargs_count(kvlist, ftag_key)) {
+ rte_kvargs_free(kvlist);
+ return 0;
+ }
+ /* FTAG is enabled when there's key-value pair: enable_ftag=1 */
+ if (rte_kvargs_process(kvlist, ftag_key,
+ ftag_check_handler, NULL) < 0) {
+ rte_kvargs_free(kvlist);
+ return 0;
+ }
+ rte_kvargs_free(kvlist);
+
+ return 1;
+}
+
+static uint16_t
+fm10k_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts)
+{
+ uint16_t nb_tx = 0;
+ struct fm10k_tx_queue *txq = (struct fm10k_tx_queue *)tx_queue;
+
+ while (nb_pkts) {
+ uint16_t ret, num;
+
+ num = (uint16_t)RTE_MIN(nb_pkts, txq->rs_thresh);
+ ret = fm10k_xmit_fixed_burst_vec(tx_queue, &tx_pkts[nb_tx],
+ num);
+ nb_tx += ret;
+ nb_pkts -= ret;
+ if (ret < num)
+ break;
+ }
+
+ return nb_tx;
+}
+
+static void __attribute__((cold))
+fm10k_set_tx_function(struct rte_eth_dev *dev)
+{
+ struct fm10k_tx_queue *txq;
+ int i;
+ int use_sse = 1;
+ uint16_t tx_ftag_en = 0;
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+ /* primary process has set the ftag flag and offloads */
+ txq = dev->data->tx_queues[0];
+ if (fm10k_tx_vec_condition_check(txq)) {
+ dev->tx_pkt_burst = fm10k_xmit_pkts;
+ dev->tx_pkt_prepare = fm10k_prep_pkts;
+ PMD_INIT_LOG(DEBUG, "Use regular Tx func");
+ } else {
+ PMD_INIT_LOG(DEBUG, "Use vector Tx func");
+ dev->tx_pkt_burst = fm10k_xmit_pkts_vec;
+ dev->tx_pkt_prepare = NULL;
+ }
+ return;
+ }
+
+ if (fm10k_check_ftag(dev->device->devargs))
+ tx_ftag_en = 1;
+
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ txq = dev->data->tx_queues[i];
+ txq->tx_ftag_en = tx_ftag_en;
+ /* Check if Vector Tx is satisfied */
+ if (fm10k_tx_vec_condition_check(txq))
+ use_sse = 0;
+ }
+
+ if (use_sse) {
+ PMD_INIT_LOG(DEBUG, "Use vector Tx func");
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ txq = dev->data->tx_queues[i];
+ fm10k_txq_vec_setup(txq);
+ }
+ dev->tx_pkt_burst = fm10k_xmit_pkts_vec;
+ dev->tx_pkt_prepare = NULL;
+ } else {
+ dev->tx_pkt_burst = fm10k_xmit_pkts;
+ dev->tx_pkt_prepare = fm10k_prep_pkts;
+ PMD_INIT_LOG(DEBUG, "Use regular Tx func");
+ }
+}
+
+static void __attribute__((cold))
+fm10k_set_rx_function(struct rte_eth_dev *dev)
+{
+ struct fm10k_dev_info *dev_info =
+ FM10K_DEV_PRIVATE_TO_INFO(dev->data->dev_private);
+ uint16_t i, rx_using_sse;
+ uint16_t rx_ftag_en = 0;
+
+ if (fm10k_check_ftag(dev->device->devargs))
+ rx_ftag_en = 1;
+
+ /* In order to allow Vector Rx there are a few configuration
+ * conditions to be met.
+ */
+ if (!fm10k_rx_vec_condition_check(dev) &&
+ dev_info->rx_vec_allowed && !rx_ftag_en) {
+ if (dev->data->scattered_rx)
+ dev->rx_pkt_burst = fm10k_recv_scattered_pkts_vec;
+ else
+ dev->rx_pkt_burst = fm10k_recv_pkts_vec;
+ } else if (dev->data->scattered_rx)
+ dev->rx_pkt_burst = fm10k_recv_scattered_pkts;
+ else
+ dev->rx_pkt_burst = fm10k_recv_pkts;
+
+ rx_using_sse =
+ (dev->rx_pkt_burst == fm10k_recv_scattered_pkts_vec ||
+ dev->rx_pkt_burst == fm10k_recv_pkts_vec);
+
+ if (rx_using_sse)
+ PMD_INIT_LOG(DEBUG, "Use vector Rx func");
+ else
+ PMD_INIT_LOG(DEBUG, "Use regular Rx func");
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return;
+
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ struct fm10k_rx_queue *rxq = dev->data->rx_queues[i];
+
+ rxq->rx_using_sse = rx_using_sse;
+ rxq->rx_ftag_en = rx_ftag_en;
+ }
+}
+
+static void
+fm10k_params_init(struct rte_eth_dev *dev)
+{
+ struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct fm10k_dev_info *info =
+ FM10K_DEV_PRIVATE_TO_INFO(dev->data->dev_private);
+
+ /* Inialize bus info. Normally we would call fm10k_get_bus_info(), but
+ * there is no way to get link status without reading BAR4. Until this
+ * works, assume we have maximum bandwidth.
+ * @todo - fix bus info
+ */
+ hw->bus_caps.speed = fm10k_bus_speed_8000;
+ hw->bus_caps.width = fm10k_bus_width_pcie_x8;
+ hw->bus_caps.payload = fm10k_bus_payload_512;
+ hw->bus.speed = fm10k_bus_speed_8000;
+ hw->bus.width = fm10k_bus_width_pcie_x8;
+ hw->bus.payload = fm10k_bus_payload_256;
+
+ info->rx_vec_allowed = true;
+}
+