Function sfc_fec_get

dpdk/drivers/net/sfc/sfc_ethdev.c:2502–2561

}

static int
sfc_fec_get(struct rte_eth_dev *dev, uint32_t *fec_capa)
{
	struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
	struct sfc_port *port = &sa->port;
	struct rte_eth_link current_link;
	efx_phy_fec_type_t active_fec;
	bool is_25g = false;
	int rc = 0;

	sfc_adapter_lock(sa);

	sfc_dev_get_rte_link(dev, 1, &current_link);

	if (current_link.link_status == RTE_ETH_LINK_DOWN) {
		uint32_t speed = current_link.link_speed;

		if (port->fec_auto) {
			*fec_capa = RTE_ETH_FEC_MODE_TO_CAPA(RTE_ETH_FEC_AUTO);
			goto adapter_unlock;
		}

		is_25g = (speed == RTE_ETH_SPEED_NUM_25G ||
			  speed == RTE_ETH_SPEED_NUM_50G);

		*fec_capa = sfc_efx_caps_to_fec(port->fec_cfg, is_25g);
		if (*fec_capa == 0)
			rc = ENOTSUP;

		goto adapter_unlock;
	}

	rc = efx_phy_fec_type_get(sa->nic, &active_fec);
	if (rc != 0)
		goto adapter_unlock;

	switch (active_fec) {
	case EFX_PHY_FEC_NONE:
		*fec_capa = RTE_ETH_FEC_MODE_TO_CAPA(RTE_ETH_FEC_NOFEC);
		break;
	case EFX_PHY_FEC_BASER:
		*fec_capa = RTE_ETH_FEC_MODE_TO_CAPA(RTE_ETH_FEC_BASER);
		break;
	case EFX_PHY_FEC_RS:
		*fec_capa = RTE_ETH_FEC_MODE_TO_CAPA(RTE_ETH_FEC_RS);
		break;
	default:
		rc = ENOTSUP;
		break;
	}

adapter_unlock:
	sfc_adapter_unlock(sa);

	if (rc != 0)
		sfc_err(sa, "failed to get FEC mode");

	SFC_ASSERT(rc >= 0);