/* * Copyright (c) 2015 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include #include #include #include #include #include #include #include #include #include #define foreach_dpdk_tx_func_error \ _(PKT_DROP, "Tx packet drops (dpdk tx failure)") typedef enum { #define _(f,s) DPDK_TX_FUNC_ERROR_##f, foreach_dpdk_tx_func_error #undef _ DPDK_TX_FUNC_N_ERROR, } dpdk_tx_func_error_t; static char *dpdk_tx_func_error_strings[] = { #define _(n,s) s, foreach_dpdk_tx_func_error #undef _ }; static clib_error_t * dpdk_add_del_mac_address (vnet_hw_interface_t * hi, const u8 * address, u8 is_add) { int error; dpdk_main_t *dm = &dpdk_main; dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance); if (is_add) error = rte_eth_dev_mac_addr_add (xd->port_id, (struct rte_ether_addr *) address, 0); else error = rte_eth_dev_mac_addr_remove (xd->port_id, (struct rte_ether_addr *) address); if (error) { return clib_error_return (0, "mac address add/del failed: %d", error); } return NULL; } static clib_error_t * dpdk_set_mac_address (vnet_hw_interface_t * hi, const u8 * old_address, const u8 * address) { int error; dpdk_main_t *dm = &dpdk_main; dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance); error = rte_eth_dev_default_mac_addr_set (xd->port_id, (void *) address); if (error) { return clib_error_return (0, "mac address set failed: %d", error); } else { vec_reset_length (xd->default_mac_address); vec_add (xd->default_mac_address, address, sizeof (mac_address_t)); return NULL; } } static void dpdk_tx_trace_buffer (dpdk_main_t * dm, vlib_node_runtime_t * node, dpdk_device_t * xd, u16 queue_id, vlib_buffer_t * buffer) { vlib_main_t *vm = vlib_get_main (); dpdk_tx_trace_t *t0; struct rte_mbuf *mb; mb = rte_mbuf_from_vlib_buffer (buffer); t0 = vlib_add_trace (vm, node, buffer, sizeof (t0[0])); t0->queue_index = queue_id; t0->device_index = xd->device_index; t0->buffer_index = vlib_get_buffer_index (vm, buffer); clib_memcpy_fast (&t0->mb, mb, sizeof (t0->mb)); clib_memcpy_fast (&t0->buffer, buffer, sizeof (buffer[0]) - sizeof (buffer->pre_data)); clib_memcpy_fast (t0->buffer.pre_data, buffer->data + buffer->current_data, sizeof (t0->buffer.pre_data)); clib_memcpy_fast (&t0->data, mb->buf_addr + mb->data_off, sizeof (t0->data)); } static_always_inline void dpdk_validate_rte_mbuf (vlib_main_t * vm, vlib_buffer_t * b, int maybe_multiseg) { struct rte_mbuf *mb, *first_mb, *last_mb; last_mb = first_mb = mb = rte_mbuf_from_vlib_buffer (b); /* buffer is coming from non-dpdk source so we need to init rte_mbuf header */ if (PREDICT_FALSE ((b->flags & VLIB_BUFFER_EXT_HDR_VALID) == 0)) rte_pktmbuf_reset (mb); first_mb->nb_segs = 1; mb->data_len = b->current_length; mb->pkt_len = maybe_multiseg ? vlib_buffer_length_in_chain (vm, b) : b->current_length; mb->data_off = VLIB_BUFFER_PRE_DATA_SIZE + b->current_data; while (maybe_multiseg && (b->flags & VLIB_BUFFER_NEXT_PRESENT)) { b = vlib_get_buffer (vm, b->next_buffer); mb = rte_mbuf_from_vlib_buffer (b); if (PREDICT_FALSE ((b->flags & VLIB_BUFFER_EXT_HDR_VALID) == 0)) rte_pktmbuf_reset (mb); last_mb->next = mb; last_mb = mb; mb->data_len = b->current_length; mb->pkt_len = b->current_length; mb->data_off = VLIB_BUFFER_PRE_DATA_SIZE + b->current_data; first_mb->nb_segs++; if (PREDICT_FALSE (b->ref_count > 1)) mb->pool = dpdk_no_cache_mempool_by_buffer_pool_index[b->buffer_pool_index]; } } /* * This function calls the dpdk's tx_burst function to transmit the packets. * It manages a lock per-device if the device does not * support multiple queues. It returns the number of packets untransmitted * If all packets are transmitted (the normal case), the function returns 0. */ static_always_inline u32 tx_burst_vector_internal (vlib_main_t *vm, dpdk_device_t *xd, struct rte_mbuf **mb, u32 n_left, int queue_id, u8 is_shared) { dpdk_tx_queue_t *txq; u32 n_retry; int n_sent = 0; n_retry = 16; txq = vec_elt_at_index (xd->tx_queues, queue_id); do { if (is_shared) clib_spinlock_lock (&txq->lock); /* no wrap, transmit in one burst */ n_sent = rte_eth_tx_burst (xd->port_id, queue_id, mb, n_left); if (is_shared) clib_spinlock_unlock (&txq->lock); n_retry--; n_left -= n_sent; mb += n_sent; } while (n_sent && n_left && (n_retry > 0)); return n_left; } static_always_inline __clib_unused void dpdk_prefetch_buffer (vlib_main_t * vm, struct rte_mbuf *mb) { vlib_buffer_t *b = vlib_buffer_from_rte_mbuf (mb); CLIB_PREFETCH (mb, sizeof (struct rte_mbuf), STORE); clib_prefetch_load (b); } static_always_inline void dpdk_buffer_tx_offload (dpdk_device_t * xd, vlib_buffer_t * b, struct rte_mbuf *mb) { int is_ip4 = b->flags & VNET_BUFFER_F_IS_IP4; u32 tso = b->flags & VNET_BUFFER_F_GSO, max_pkt_len; u32 ip_cksum, tcp_cksum, udp_cksum, outer_hdr_len = 0; u32 outer_ip_cksum, vxlan_tunnel; u64 ol_flags; vnet_buffer_oflags_t oflags = 0; /* Is there any work for us? */ if (PREDICT_TRUE (((b->flags & VNET_BUFFER_F_OFFLOAD) | tso) == 0)) return; oflags = vnet_buffer (b)->oflags; ip_cksum = oflags & VNET_BUFFER_OFFLOAD_F_IP_CKSUM; tcp_cksum = oflags & VNET_BUFFER_OFFLOAD_F_TCP_CKSUM; udp_cksum = oflags & VNET_BUFFER_OFFLOAD_F_UDP_CKSUM; outer_ip_cksum = oflags & VNET_BUFFER_OFFLOAD_F_OUTER_IP_CKSUM; vxlan_tunnel = oflags & VNET_BUFFER_OFFLOAD_F_TNL_VXLAN; ol_flags = is_ip4 ? RTE_MBUF_F_TX_IPV4 : RTE_MBUF_F_TX_IPV6; ol_flags |= ip_cksum ? RTE_MBUF_F_TX_IP_CKSUM : 0; ol_flags |= tcp_cksum ? RTE_MBUF_F_TX_TCP_CKSUM : 0; ol_flags |= udp_cksum ? RTE_MBUF_F_TX_UDP_CKSUM : 0; if (vxlan_tunnel) { ol_flags |= outer_ip_cksum ? RTE_MBUF_F_TX_OUTER_IPV4 | RTE_MBUF_F_TX_OUTER_IP_CKSUM : RTE_MBUF_F_TX_OUTER_IPV6; ol_flags |= RTE_MBUF_F_TX_TUNNEL_VXLAN; mb->l2_len = vnet_buffer (b)->l3_hdr_offset - vnet_buffer2 (b)->outer_l4_hdr_offset; mb->l3_len = vnet_buffer (b)->l4_hdr_offset - vnet_buffer (b)->l3_hdr_offset; mb->outer_l2_len = vnet_buffer2 (b)->outer_l3_hdr_offset - b->current_data; mb->outer_l3_len = vnet_buffer2 (b)->outer_l4_hdr_offset - vnet_buffer2 (b)->outer_l3_hdr_offset; outer_hdr_len = mb->outer_l2_len + mb->outer_l3_len; } else { mb->l2_len = vnet_buffer (b)->l3_hdr_offset - b->current_data; mb->l3_len = vnet_buffer (b)->l4_hdr_offset - vnet_buffer (b)->l3_hdr_offset; mb->outer_l2_len = 0; mb->outer_l3_len = 0; } if (tso) { mb->l4_len = vnet_buffer2 (b)->gso_l4_hdr_sz; mb->tso_segsz = vnet_buffer2 (b)->gso_size; /* ensure packet is large enough to require tso */ max_pkt_len = outer_hdr_len + mb->l2_len + mb->l3_len + mb->l4_len + mb->tso_segsz; if (mb->tso_segsz != 0 && mb->pkt_len > max_pkt_len) ol_flags |= (tcp_cksum ? RTE_MBUF_F_TX_TCP_SEG : RTE_MBUF_F_TX_UDP_SEG); } mb->ol_flags |= ol_flags; /* we are trying to help compiler here by using local ol_flags with known state of all flags */ if (xd->flags & DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM) rte_net_intel_cksum_flags_prepare (mb, ol_flags); } /* * Transmits the packets on the frame to the interface associated with the * node. It first copies packets on the frame to a per-thread arrays * containing the rte_mbuf pointers. */ VNET_DEVICE_CLASS_TX_FN (dpdk_device_class) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f) { dpdk_main_t *dm = &dpdk_main; vnet_interface_output_runtime_t *rd = (void *) node->runtime_data; dpdk_device_t *xd = vec_elt_at_index (dm->devices, rd->dev_instance); vnet_hw_if_tx_frame_t *tf = vlib_frame_scalar_args (f); u32 n_packets = f->n_vectors; u32 n_left; u32 thread_index = vm->thread_index; int queue_id = tf->queue_id; u8 is_shared = tf->shared_queue; u32 tx_pkts = 0; dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, thread_index); struct rte_mbuf **mb; vlib_buffer_t *b[4]; ASSERT (n_packets <= VLIB_FRAME_SIZE); /* calculate rte_mbuf pointers out of buffer indices */ vlib_get_buffers_with_offset (vm, vlib_frame_vector_args (f), (void **) ptd->mbufs, n_packets, -(i32) sizeof (struct rte_mbuf)); n_left = n_packets; mb = ptd->mbufs; #if (CLIB_N_PREFETCHES >= 8) while (n_left >= 8) { u32 or_flags; dpdk_prefetch_buffer (vm, mb[4]); dpdk_prefetch_buffer (vm, mb[5]); dpdk_prefetch_buffer (vm, mb[6]); dpdk_prefetch_buffer (vm, mb[7]); b[0] = vlib_buffer_from_rte_mbuf (mb[0]); b[1] = vlib_buffer_from_rte_mbuf (mb[1]); b[2] = vlib_buffer_from_rte_mbuf (mb[2]); b[3] = vlib_buffer_from_rte_mbuf (mb[3]); or_flags = b[0]->flags | b[1]->flags | b[2]->flags | b[3]->flags; if (or_flags & VLIB_BUFFER_NEXT_PRESENT) { dpdk_validate_rte_mbuf (vm, b[0], 1); dpdk_validate_rte_mbuf (vm, b[1], 1); dpdk_validate_rte_mbuf (vm, b[2], 1); dpdk_validate_rte_mbuf (vm, b[3], 1); } else { dpdk_validate_rte_mbuf (vm, b[0], 0); dpdk_validate_rte_mbuf (vm, b[1], 0); dpdk_validate_rte_mbuf (vm, b[2], 0); dpdk_validate_rte_mbuf (vm, b[3], 0); } if (PREDICT_FALSE ((xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD) && (or_flags & VNET_BUFFER_F_OFFLOAD))) { dpdk_buffer_tx_offload (xd, b[0], mb[0]); dpdk_buffer_tx_offload (xd, b[1], mb[1]); dpdk_buffer_tx_offload (xd, b[2], mb[2]); dpdk_buffer_tx_offload (xd, b[3], mb[3]); } if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE)) { if (b[0]->flags & VLIB_BUFFER_IS_TRACED) dpdk_tx_trace_buffer (dm, node, xd, queue_id, b[0]); if (b[1]->flags & VLIB_BUFFER_IS_TRACED) dpdk_tx_trace_buffer (dm, node, xd, queue_id, b[1]); if (b[2]->flags & VLIB_BUFFER_IS_TRACED) dpdk_tx_trace_buffer (dm, node, xd, queue_id, b[2]); if (b[3]->flags & VLIB_BUFFER_IS_TRACED) dpdk_tx_trace_buffer (dm, node, xd, queue_id, b[3]); } mb += 4; n_left -= 4; } #elif (CLIB_N_PREFETCHES >= 4) while (n_left >= 4) { vlib_buffer_t *b2, *b3; u32 or_flags; clib_prefetch_store (mb[2]); clib_prefetch_store (mb[3]); b2 = vlib_buffer_from_rte_mbuf (mb[2]); clib_prefetch_load (b2); b3 = vlib_buffer_from_rte_mbuf (mb[3]); clib_prefetch_load (b3); b[0] = vlib_buffer_from_rte_mbuf (mb[0]); b[1] = vlib_buffer_from_rte_mbuf (mb[1]); or_flags = b[0]->flags | b[1]->flags; if (or_flags & VLIB_BUFFER_NEXT_PRESENT) { dpdk_validate_rte_mbuf (vm, b[0], 1); dpdk_validate_rte_mbuf (vm, b[1], 1); } else { dpdk_validate_rte_mbuf (vm, b[0], 0); dpdk_validate_rte_mbuf (vm, b[1], 0); } if (PREDICT_FALSE ((xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD) && (or_flags & VNET_BUFFER_F_OFFLOAD))) { dpdk_buffer_tx_offload (xd, b[0], mb[0]); dpdk_buffer_tx_offload (xd, b[1], mb[1]); } if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE)) { if (b[0]->flags & VLIB_BUFFER_IS_TRACED) dpdk_tx_trace_buffer (dm, node, xd, queue_id, b[0]); if (b[1]->flags & VLIB_BUFFER_IS_TRACED) dpdk_tx_trace_buffer (dm, node, xd, queue_id, b[1]); } mb += 2; n_left -= 2; } #endif while (n_left > 0) { b[0] = vlib_buffer_from_rte_mbuf (mb[0]); dpdk_validate_rte_mbuf (vm, b[0], 1); dpdk_buffer_tx_offload (xd, b[0], mb[0]); if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE)) if (b[0]->flags & VLIB_BUFFER_IS_TRACED) dpdk_tx_trace_buffer (dm, node, xd, queue_id, b[0]); mb++; n_left--; } /* transmit as many packets as possible */ tx_pkts = n_packets = mb - ptd->mbufs; n_left = tx_burst_vector_internal (vm, xd, ptd->mbufs, n_packets, queue_id, is_shared); { /* If there is no callback then drop any non-transmitted packets */ if (PREDICT_FALSE (n_left)) { tx_pkts -= n_left; vlib_simple_counter_main_t *cm; vnet_main_t *vnm = vnet_get_main (); cm = vec_elt_at_index (vnm->interface_main.sw_if_counters, VNET_INTERFACE_COUNTER_TX_ERROR); vlib_increment_simple_counter (cm, thread_index, xd->sw_if_index, n_left); vlib_error_count (vm, node->node_index, DPDK_TX_FUNC_ERROR_PKT_DROP, n_left); while (n_left--) rte_pktmbuf_free (ptd->mbufs[n_packets - n_left - 1]); } } return tx_pkts; } static void dpdk_clear_hw_interface_counters (u32 instance) { dpdk_main_t *dm = &dpdk_main; dpdk_device_t *xd = vec_elt_at_index (dm->devices, instance); rte_eth_stats_reset (xd->port_id); rte_eth_xstats_reset (xd->port_id); } static clib_error_t * dpdk_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) { vnet_hw_interface_t *hif = vnet_get_hw_interface (vnm, hw_if_index); uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0; dpdk_main_t *dm = &dpdk_main; dpdk_device_t *xd = vec_elt_at_index (dm->devices, hif->dev_instance); if (xd->flags & DPDK_DEVICE_FLAG_PMD_INIT_FAIL) return clib_error_return (0, "Interface not initialized"); if (is_up) { if ((xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) == 0) { dpdk_device_start (xd); if (vec_len (xd->errors)) return clib_error_create ("Interface start failed"); xd->flags |= DPDK_DEVICE_FLAG_ADMIN_UP; f64 now = vlib_time_now (vlib_get_main ()); dpdk_update_counters (xd, now); dpdk_update_link_state (xd, now); } } else { vnet_hw_interface_set_flags (vnm, xd->hw_if_index, 0); if ((xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0) dpdk_device_stop (xd); xd->flags &= ~DPDK_DEVICE_FLAG_ADMIN_UP; } return /* no error */ 0; } /* * Dynamically redirect all pkts from a specific interface * to the specified node */ static void dpdk_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index, u32 node_index) { dpdk_main_t *xm = &dpdk_main; vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); dpdk_device_t *xd = vec_elt_at_index (xm->devices, hw->dev_instance); /* Shut off redirection */ if (node_index == ~0) { xd->per_interface_next_index = node_index; return; } xd->per_interface_next_index = vlib_node_add_next (vlib_get_main (), dpdk_input_node.index, node_index); } static clib_error_t * dpdk_subif_add_del_function (vnet_main_t * vnm, u32 hw_if_index, struct vnet_sw_interface_t *st, int is_add) { dpdk_main_t *xm = &dpdk_main; vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); dpdk_device_t *xd = vec_elt_at_index (xm->devices, hw->dev_instance); vnet_sw_interface_t *t = (vnet_sw_interface_t *) st; int r, vlan_offload; u32 prev_subifs = xd->num_subifs; clib_error_t *err = 0; if (is_add) xd->num_subifs++; else if (xd->num_subifs) xd->num_subifs--; /* currently we program VLANS only for IXGBE VF */ if (xd->driver->program_vlans == 0) goto done; if (t->sub.eth.flags.no_tags == 1) goto done; if ((t->sub.eth.flags.one_tag != 1) || (t->sub.eth.flags.exact_match != 1)) { xd->num_subifs = prev_subifs; err = clib_error_return (0, "unsupported VLAN setup"); goto done; } vlan_offload = rte_eth_dev_get_vlan_offload (xd->port_id); vlan_offload |= RTE_ETH_VLAN_FILTER_OFFLOAD; if ((r = rte_eth_dev_set_vlan_offload (xd->port_id, vlan_offload))) { xd->num_subifs = prev_subifs; err = clib_error_return (0, "rte_eth_dev_set_vlan_offload[%d]: err %d", xd->port_id, r); goto done; } if ((r = rte_eth_dev_vlan_filter (xd->port_id, t->sub.eth.outer_vlan_id, is_add))) { xd->num_subifs = prev_subifs; err = clib_error_return (0, "rte_eth_dev_vlan_filter[%d]: err %d", xd->port_id, r); goto done; } done: if (xd->num_subifs) xd->flags |= DPDK_DEVICE_FLAG_HAVE_SUBIF; else xd->flags &= ~DPDK_DEVICE_FLAG_HAVE_SUBIF; return err; } static clib_error_t * dpdk_interface_set_rss_queues (struct vnet_main_t *vnm, struct vnet_hw_interface_t *hi, clib_bitmap_t * bitmap) { dpdk_main_t *xm = &dpdk_main; u32 hw_if_index = hi->hw_if_index; vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); dpdk_device_t *xd = vec_elt_at_index (xm->devices, hw->dev_instance); clib_error_t *err = 0; struct rte_eth_rss_reta_entry64 *reta_conf = NULL; struct rte_eth_dev_info dev_info; u16 *reta = NULL; u16 *valid_queue = NULL; u16 valid_queue_count = 0; uint32_t i, j; uint32_t ret; rte_eth_dev_info_get (xd->port_id, &dev_info); /* parameter check */ if (clib_bitmap_count_set_bits (bitmap) == 0) { err = clib_error_return (0, "must assign at least one valid rss queue"); goto done; } if (clib_bitmap_count_set_bits (bitmap) > dev_info.nb_rx_queues) { err = clib_error_return (0, "too many rss queues"); goto done; } /* new RETA */ reta = clib_mem_alloc (dev_info.reta_size * sizeof (*reta)); if (reta == NULL) { err = clib_error_return (0, "clib_mem_alloc failed"); goto done; } clib_memset (reta, 0, dev_info.reta_size * sizeof (*reta)); valid_queue_count = 0; clib_bitmap_foreach (i, bitmap) { if (i >= dev_info.nb_rx_queues) { err = clib_error_return (0, "illegal queue number"); goto done; } reta[valid_queue_count++] = i; } /* check valid_queue_count not zero, make coverity happy */ if (valid_queue_count == 0) { err = clib_error_return (0, "must assign at least one valid rss queue"); goto done; } valid_queue = reta; for (i = valid_queue_count, j = 0; i < dev_info.reta_size; i++, j++) { j = j % valid_queue_count; reta[i] = valid_queue[j]; } /* update reta table */ reta_conf = (struct rte_eth_rss_reta_entry64 *) clib_mem_alloc ( dev_info.reta_size / RTE_ETH_RETA_GROUP_SIZE * sizeof (*reta_conf)); if (reta_conf == NULL) { err = clib_error_return (0, "clib_mem_alloc failed"); goto done; } clib_memset (reta_conf, 0, dev_info.reta_size / RTE_ETH_RETA_GROUP_SIZE * sizeof (*reta_conf)); for (i = 0; i < dev_info.reta_size; i++) { uint32_t reta_id = i / RTE_ETH_RETA_GROUP_SIZE; uint32_t reta_pos = i % RTE_ETH_RETA_GROUP_SIZE; reta_conf[reta_id].mask = UINT64_MAX; reta_conf[reta_id].reta[reta_pos] = reta[i]; } ret = rte_eth_dev_rss_reta_update (xd->port_id, reta_conf, dev_info.reta_size); if (ret) { err = clib_error_return (0, "rte_eth_dev_rss_reta_update err %d", ret); goto done; } done: if (reta) clib_mem_free (reta); if (reta_conf) clib_mem_free (reta_conf); return err; } static clib_error_t * dpdk_interface_rx_mode_change (vnet_main_t *vnm, u32 hw_if_index, u32 qid, vnet_hw_if_rx_mode mode) { dpdk_main_t *xm = &dpdk_main; vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); dpdk_device_t *xd = vec_elt_at_index (xm->devices, hw->dev_instance); clib_file_main_t *fm = &file_main; dpdk_rx_queue_t *rxq; clib_file_t *f; int rv = 0; if (!(xd->flags & DPDK_DEVICE_FLAG_INT_SUPPORTED)) return clib_error_return (0, "unsupported op (is the interface up?)", rv); if (mode == VNET_HW_IF_RX_MODE_POLLING && !(xd->flags & DPDK_DEVICE_FLAG_INT_UNMASKABLE)) rv = rte_eth_dev_rx_intr_disable (xd->port_id, qid); else if (mode == VNET_HW_IF_RX_MODE_POLLING) { rxq = vec_elt_at_index (xd->rx_queues, qid); f = pool_elt_at_index (fm->file_pool, rxq->clib_file_index); fm->file_update (f, UNIX_FILE_UPDATE_DELETE); } else if (!(xd->flags & DPDK_DEVICE_FLAG_INT_UNMASKABLE)) rv = rte_eth_dev_rx_intr_enable (xd->port_id, qid); else { rxq = vec_elt_at_index (xd->rx_queues, qid); f = pool_elt_at_index (fm->file_pool, rxq->clib_file_index); fm->file_update (f, UNIX_FILE_UPDATE_ADD); } if (rv) return clib_error_return (0, "dpdk_interface_rx_mode_change err %d", rv); return 0; } VNET_DEVICE_CLASS (dpdk_device_class) = { .name = "dpdk", .tx_function_n_errors = DPDK_TX_FUNC_N_ERROR, .tx_function_error_strings = dpdk_tx_func_error_strings, .format_device_name = format_dpdk_device_name, .format_device = format_dpdk_device, .format_tx_trace = format_dpdk_tx_trace, .clear_counters = dpdk_clear_hw_interface_counters, .admin_up_down_function = dpdk_interface_admin_up_down, .subif_add_del_function = dpdk_subif_add_del_function, .rx_redirect_to_node = dpdk_set_interface_next_node, .mac_addr_change_function = dpdk_set_mac_address, .mac_addr_add_del_function = dpdk_add_del_mac_address, .format_flow = format_dpdk_flow, .flow_ops_function = dpdk_flow_ops_fn, .set_rss_queues_function = dpdk_interface_set_rss_queues, .rx_mode_change_function = dpdk_interface_rx_mode_change, }; #define UP_DOWN_FLAG_EVENT 1 static uword admin_up_down_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f) { clib_error_t *error = 0; uword event_type; uword *event_data = 0; u32 sw_if_index; u32 flags; while (1) { vlib_process_wait_for_event (vm); event_type = vlib_process_get_events (vm, &event_data); dpdk_main.admin_up_down_in_progress = 1; switch (event_type) { case UP_DOWN_FLAG_EVENT: { if (vec_len (event_data) == 2) { sw_if_index = event_data[0]; flags = event_data[1]; error = vnet_sw_interface_set_flags (vnet_get_main (), sw_if_index, flags); clib_error_report (error); } } break; } vec_reset_length (event_data); dpdk_main.admin_up_down_in_progress = 0; } return 0; /* or not */ } VLIB_REGISTER_NODE (admin_up_down_process_node) = { .function = admin_up_down_process, .type = VLIB_NODE_TYPE_PROCESS, .name = "admin-up-down-process", .process_log2_n_stack_bytes = 17, // 256KB }; /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */