+static int
+sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
+{
+ struct sfc_adapter *sa = dev->data->dev_private;
+ size_t pdu = EFX_MAC_PDU(mtu);
+ size_t old_pdu;
+ int rc;
+
+ sfc_log_init(sa, "mtu=%u", mtu);
+
+ rc = EINVAL;
+ if (pdu < EFX_MAC_PDU_MIN) {
+ sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
+ (unsigned int)mtu, (unsigned int)pdu,
+ EFX_MAC_PDU_MIN);
+ goto fail_inval;
+ }
+ if (pdu > EFX_MAC_PDU_MAX) {
+ sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
+ (unsigned int)mtu, (unsigned int)pdu,
+ EFX_MAC_PDU_MAX);
+ goto fail_inval;
+ }
+
+ sfc_adapter_lock(sa);
+
+ if (pdu != sa->port.pdu) {
+ if (sa->state == SFC_ADAPTER_STARTED) {
+ sfc_stop(sa);
+
+ old_pdu = sa->port.pdu;
+ sa->port.pdu = pdu;
+ rc = sfc_start(sa);
+ if (rc != 0)
+ goto fail_start;
+ } else {
+ sa->port.pdu = pdu;
+ }
+ }
+
+ /*
+ * The driver does not use it, but other PMDs update jumbo_frame
+ * flag and max_rx_pkt_len when MTU is set.
+ */
+ dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
+ dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
+
+ sfc_adapter_unlock(sa);
+
+ sfc_log_init(sa, "done");
+ return 0;
+
+fail_start:
+ sa->port.pdu = old_pdu;
+ if (sfc_start(sa) != 0)
+ sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
+ "PDU max size - port is stopped",
+ (unsigned int)pdu, (unsigned int)old_pdu);
+ sfc_adapter_unlock(sa);
+
+fail_inval:
+ sfc_log_init(sa, "failed %d", rc);
+ SFC_ASSERT(rc > 0);
+ return -rc;
+}
+static void
+sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
+{
+ struct sfc_adapter *sa = dev->data->dev_private;
+ const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
+ int rc;
+
+ sfc_adapter_lock(sa);
+
+ if (sa->state != SFC_ADAPTER_STARTED) {
+ sfc_info(sa, "the port is not started");
+ sfc_info(sa, "the new MAC address will be set on port start");
+
+ goto unlock;
+ }
+
+ if (encp->enc_allow_set_mac_with_installed_filters) {
+ rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
+ if (rc != 0) {
+ sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
+ goto unlock;
+ }
+
+ /*
+ * Changing the MAC address by means of MCDI request
+ * has no effect on received traffic, therefore
+ * we also need to update unicast filters
+ */
+ rc = sfc_set_rx_mode(sa);
+ if (rc != 0)
+ sfc_err(sa, "cannot set filter (rc = %u)", rc);
+ } else {
+ sfc_warn(sa, "cannot set MAC address with filters installed");
+ sfc_warn(sa, "adapter will be restarted to pick the new MAC");
+ sfc_warn(sa, "(some traffic may be dropped)");
+
+ /*
+ * Since setting MAC address with filters installed is not
+ * allowed on the adapter, one needs to simply restart adapter
+ * so that the new MAC address will be taken from an outer
+ * storage and set flawlessly by means of sfc_start() call
+ */
+ sfc_stop(sa);
+ rc = sfc_start(sa);
+ if (rc != 0)
+ sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
+ }
+
+unlock:
+ sfc_adapter_unlock(sa);
+}
+
+
+static int
+sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
+ uint32_t nb_mc_addr)
+{
+ struct sfc_adapter *sa = dev->data->dev_private;
+ uint8_t *mc_addrs_p;
+ uint8_t *mc_addrs;
+ int rc;
+ unsigned int i;
+
+ if (nb_mc_addr > EFX_MAC_MULTICAST_LIST_MAX) {
+ sfc_err(sa, "too many multicast addresses: %u > %u",
+ nb_mc_addr, EFX_MAC_MULTICAST_LIST_MAX);
+ return -EINVAL;
+ }
+
+ mc_addrs_p = rte_calloc("mc-addrs", nb_mc_addr, EFX_MAC_ADDR_LEN, 0);
+ if (mc_addrs_p == NULL)
+ return -ENOMEM;
+
+ mc_addrs = mc_addrs_p;
+
+ for (i = 0; i < nb_mc_addr; ++i) {
+ (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
+ EFX_MAC_ADDR_LEN);
+ mc_addrs += EFX_MAC_ADDR_LEN;
+ }
+
+ rc = efx_mac_multicast_list_set(sa->nic, mc_addrs_p, nb_mc_addr);
+
+ rte_free(mc_addrs_p);
+
+ if (rc != 0)
+ sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
+
+ SFC_ASSERT(rc > 0);
+ return -rc;
+}
+