+ sfc_sriov_detach(sa);
+
+ sa->state = SFC_ETHDEV_UNINITIALIZED;
+}
+
+static int
+sfc_kvarg_fv_variant_handler(__rte_unused const char *key,
+ const char *value_str, void *opaque)
+{
+ uint32_t *value = opaque;
+
+ if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_DONT_CARE) == 0)
+ *value = EFX_FW_VARIANT_DONT_CARE;
+ else if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_FULL_FEATURED) == 0)
+ *value = EFX_FW_VARIANT_FULL_FEATURED;
+ else if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_LOW_LATENCY) == 0)
+ *value = EFX_FW_VARIANT_LOW_LATENCY;
+ else if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_PACKED_STREAM) == 0)
+ *value = EFX_FW_VARIANT_PACKED_STREAM;
+ else if (strcasecmp(value_str, SFC_KVARG_FW_VARIANT_DPDK) == 0)
+ *value = EFX_FW_VARIANT_DPDK;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+static int
+sfc_get_fw_variant(struct sfc_adapter *sa, efx_fw_variant_t *efv)
+{
+ efx_nic_fw_info_t enfi;
+ int rc;
+
+ rc = efx_nic_get_fw_version(sa->nic, &enfi);
+ if (rc != 0)
+ return rc;
+ else if (!enfi.enfi_dpcpu_fw_ids_valid)
+ return ENOTSUP;
+
+ /*
+ * Firmware variant can be uniquely identified by the RxDPCPU
+ * firmware id
+ */
+ switch (enfi.enfi_rx_dpcpu_fw_id) {
+ case EFX_RXDP_FULL_FEATURED_FW_ID:
+ *efv = EFX_FW_VARIANT_FULL_FEATURED;
+ break;
+
+ case EFX_RXDP_LOW_LATENCY_FW_ID:
+ *efv = EFX_FW_VARIANT_LOW_LATENCY;
+ break;
+
+ case EFX_RXDP_PACKED_STREAM_FW_ID:
+ *efv = EFX_FW_VARIANT_PACKED_STREAM;
+ break;
+
+ case EFX_RXDP_DPDK_FW_ID:
+ *efv = EFX_FW_VARIANT_DPDK;
+ break;
+
+ default:
+ /*
+ * Other firmware variants are not considered, since they are
+ * not supported in the device parameters
+ */
+ *efv = EFX_FW_VARIANT_DONT_CARE;
+ break;
+ }
+
+ return 0;
+}
+
+static const char *
+sfc_fw_variant2str(efx_fw_variant_t efv)
+{
+ switch (efv) {
+ case EFX_RXDP_FULL_FEATURED_FW_ID:
+ return SFC_KVARG_FW_VARIANT_FULL_FEATURED;
+ case EFX_RXDP_LOW_LATENCY_FW_ID:
+ return SFC_KVARG_FW_VARIANT_LOW_LATENCY;
+ case EFX_RXDP_PACKED_STREAM_FW_ID:
+ return SFC_KVARG_FW_VARIANT_PACKED_STREAM;
+ case EFX_RXDP_DPDK_FW_ID:
+ return SFC_KVARG_FW_VARIANT_DPDK;
+ default:
+ return "unknown";
+ }
+}
+
+static int
+sfc_kvarg_rxd_wait_timeout_ns(struct sfc_adapter *sa)
+{
+ int rc;
+ long value;
+
+ value = SFC_RXD_WAIT_TIMEOUT_NS_DEF;