diff options
Diffstat (limited to 'src/vnet/devices/dpdk/device.c')
| -rw-r--r-- | src/vnet/devices/dpdk/device.c | 852 |
1 files changed, 0 insertions, 852 deletions
diff --git a/src/vnet/devices/dpdk/device.c b/src/vnet/devices/dpdk/device.c deleted file mode 100644 index 17397900c59..00000000000 --- a/src/vnet/devices/dpdk/device.c +++ /dev/null @@ -1,852 +0,0 @@ -/* - * 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 <vnet/vnet.h> -#include <vppinfra/vec.h> -#include <vppinfra/format.h> -#include <vlib/unix/cj.h> -#include <assert.h> - -#include <vnet/ethernet/ethernet.h> -#include <vnet/devices/dpdk/dpdk.h> - -#include "dpdk_priv.h" -#include <vppinfra/error.h> - -#define foreach_dpdk_tx_func_error \ - _(BAD_RETVAL, "DPDK tx function returned an error") \ - _(RING_FULL, "Tx packet drops (ring full)") \ - _(PKT_DROP, "Tx packet drops (dpdk tx failure)") \ - _(REPL_FAIL, "Tx packet drops (replication 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 _ -}; - -clib_error_t * -dpdk_set_mac_address (vnet_hw_interface_t * hi, char *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->device_index, - (struct ether_addr *) 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 (address)); - return NULL; - } -} - -clib_error_t * -dpdk_set_mc_filter (vnet_hw_interface_t * hi, - struct ether_addr mc_addr_vec[], int naddr) -{ - 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_set_mc_addr_list (xd->device_index, mc_addr_vec, naddr); - - if (error) - { - return clib_error_return (0, "mc addr list failed: %d", error); - } - else - { - return NULL; - } -} - -struct rte_mbuf * -dpdk_replicate_packet_mb (vlib_buffer_t * b) -{ - dpdk_main_t *dm = &dpdk_main; - struct rte_mbuf **mbufs = 0, *s, *d; - u8 nb_segs; - unsigned socket_id = rte_socket_id (); - int i; - - ASSERT (dm->pktmbuf_pools[socket_id]); - s = rte_mbuf_from_vlib_buffer (b); - nb_segs = s->nb_segs; - vec_validate (mbufs, nb_segs - 1); - - if (rte_pktmbuf_alloc_bulk (dm->pktmbuf_pools[socket_id], mbufs, nb_segs)) - { - vec_free (mbufs); - return 0; - } - - d = mbufs[0]; - d->nb_segs = s->nb_segs; - d->data_len = s->data_len; - d->pkt_len = s->pkt_len; - d->data_off = s->data_off; - clib_memcpy (d->buf_addr, s->buf_addr, RTE_PKTMBUF_HEADROOM + s->data_len); - - for (i = 1; i < nb_segs; i++) - { - d->next = mbufs[i]; - d = mbufs[i]; - s = s->next; - d->data_len = s->data_len; - clib_memcpy (d->buf_addr, s->buf_addr, - RTE_PKTMBUF_HEADROOM + s->data_len); - } - - d = mbufs[0]; - vec_free (mbufs); - return d; -} - -static void -dpdk_tx_trace_buffer (dpdk_main_t * dm, - vlib_node_runtime_t * node, - dpdk_device_t * xd, - u16 queue_id, u32 buffer_index, vlib_buffer_t * buffer) -{ - vlib_main_t *vm = vlib_get_main (); - dpdk_tx_dma_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 = buffer_index; - clib_memcpy (&t0->mb, mb, sizeof (t0->mb)); - clib_memcpy (&t0->buffer, buffer, - sizeof (buffer[0]) - sizeof (buffer->pre_data)); - clib_memcpy (t0->buffer.pre_data, buffer->data + buffer->current_data, - sizeof (t0->buffer.pre_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; - - /* 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)) - { - vlib_buffer_t *b2 = b; - last_mb = mb = rte_mbuf_from_vlib_buffer (b2); - rte_pktmbuf_reset (mb); - while (maybe_multiseg && (b2->flags & VLIB_BUFFER_NEXT_PRESENT)) - { - b2 = vlib_get_buffer (vm, b2->next_buffer); - mb = rte_mbuf_from_vlib_buffer (b2); - rte_pktmbuf_reset (mb); - } - } - - last_mb = first_mb = mb = rte_mbuf_from_vlib_buffer (b); - 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); - 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->n_add_refs)) - { - rte_mbuf_refcnt_update (mb, b->n_add_refs); - b->n_add_refs = 0; - } - } -} - -/* - * This function calls the dpdk's tx_burst function to transmit the packets - * on the tx_vector. It manages a lock per-device if the device does not - * support multiple queues. It returns the number of packets untransmitted - * on the tx_vector. If all packets are transmitted (the normal case), the - * function returns 0. - * - * The function assumes there is at least one packet on the tx_vector. - */ -static_always_inline - u32 tx_burst_vector_internal (vlib_main_t * vm, - dpdk_device_t * xd, - struct rte_mbuf **tx_vector) -{ - dpdk_main_t *dm = &dpdk_main; - u32 n_packets; - u32 tx_head; - u32 tx_tail; - u32 n_retry; - int rv; - int queue_id; - tx_ring_hdr_t *ring; - - ring = vec_header (tx_vector, sizeof (*ring)); - - n_packets = ring->tx_head - ring->tx_tail; - - tx_head = ring->tx_head % xd->nb_tx_desc; - - /* - * Ensure rte_eth_tx_burst is not called with 0 packets, which can lead to - * unpredictable results. - */ - ASSERT (n_packets > 0); - - /* - * Check for tx_vector overflow. If this fails it is a system configuration - * error. The ring should be sized big enough to handle the largest un-flowed - * off burst from a traffic manager. A larger size also helps performance - * a bit because it decreases the probability of having to issue two tx_burst - * calls due to a ring wrap. - */ - ASSERT (n_packets < xd->nb_tx_desc); - ASSERT (ring->tx_tail == 0); - - n_retry = 16; - queue_id = vm->cpu_index; - - do - { - /* start the burst at the tail */ - tx_tail = ring->tx_tail % xd->nb_tx_desc; - - /* - * This device only supports one TX queue, - * and we're running multi-threaded... - */ - if (PREDICT_FALSE (xd->lockp != 0)) - { - queue_id = queue_id % xd->tx_q_used; - while (__sync_lock_test_and_set (xd->lockp[queue_id], 1)) - /* zzzz */ - queue_id = (queue_id + 1) % xd->tx_q_used; - } - - if (PREDICT_FALSE (xd->flags & DPDK_DEVICE_FLAG_HQOS)) /* HQoS ON */ - { - /* no wrap, transmit in one burst */ - dpdk_device_hqos_per_worker_thread_t *hqos = - &xd->hqos_wt[vm->cpu_index]; - - ASSERT (hqos->swq != NULL); - - dpdk_hqos_metadata_set (hqos, - &tx_vector[tx_tail], tx_head - tx_tail); - rv = rte_ring_sp_enqueue_burst (hqos->swq, - (void **) &tx_vector[tx_tail], - (uint16_t) (tx_head - tx_tail)); - } - else if (PREDICT_TRUE (xd->flags & DPDK_DEVICE_FLAG_PMD)) - { - /* no wrap, transmit in one burst */ - rv = rte_eth_tx_burst (xd->device_index, - (uint16_t) queue_id, - &tx_vector[tx_tail], - (uint16_t) (tx_head - tx_tail)); - } - else - { - ASSERT (0); - rv = 0; - } - - if (PREDICT_FALSE (xd->lockp != 0)) - *xd->lockp[queue_id] = 0; - - if (PREDICT_FALSE (rv < 0)) - { - // emit non-fatal message, bump counter - vnet_main_t *vnm = dm->vnet_main; - vnet_interface_main_t *im = &vnm->interface_main; - u32 node_index; - - node_index = vec_elt_at_index (im->hw_interfaces, - xd->vlib_hw_if_index)->tx_node_index; - - vlib_error_count (vm, node_index, DPDK_TX_FUNC_ERROR_BAD_RETVAL, 1); - clib_warning ("rte_eth_tx_burst[%d]: error %d", xd->device_index, - rv); - return n_packets; // untransmitted packets - } - ring->tx_tail += (u16) rv; - n_packets -= (uint16_t) rv; - } - while (rv && n_packets && (n_retry > 0)); - - return n_packets; -} - -static_always_inline void -dpdk_prefetch_buffer_by_index (vlib_main_t * vm, u32 bi) -{ - vlib_buffer_t *b; - struct rte_mbuf *mb; - b = vlib_get_buffer (vm, bi); - mb = rte_mbuf_from_vlib_buffer (b); - CLIB_PREFETCH (mb, CLIB_CACHE_LINE_BYTES, LOAD); - CLIB_PREFETCH (b, CLIB_CACHE_LINE_BYTES, LOAD); -} - -static_always_inline void -dpdk_buffer_recycle (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_buffer_t * b, u32 bi, struct rte_mbuf **mbp) -{ - dpdk_main_t *dm = &dpdk_main; - u32 my_cpu = vm->cpu_index; - struct rte_mbuf *mb_new; - - if (PREDICT_FALSE (b->flags & VLIB_BUFFER_RECYCLE) == 0) - return; - - mb_new = dpdk_replicate_packet_mb (b); - if (PREDICT_FALSE (mb_new == 0)) - { - vlib_error_count (vm, node->node_index, - DPDK_TX_FUNC_ERROR_REPL_FAIL, 1); - b->flags |= VLIB_BUFFER_REPL_FAIL; - } - else - *mbp = mb_new; - - vec_add1 (dm->recycle[my_cpu], bi); -} - -/* - * Transmits the packets on the frame to the interface associated with the - * node. It first copies packets on the frame to a tx_vector containing the - * rte_mbuf pointers. It then passes this vector to tx_burst_vector_internal - * which calls the dpdk tx_burst function. - */ -static uword -dpdk_interface_tx (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); - u32 n_packets = f->n_vectors; - u32 n_left; - u32 *from; - struct rte_mbuf **tx_vector; - u16 i; - u16 nb_tx_desc = xd->nb_tx_desc; - int queue_id; - u32 my_cpu; - u32 tx_pkts = 0; - tx_ring_hdr_t *ring; - u32 n_on_ring; - - my_cpu = vm->cpu_index; - - queue_id = my_cpu; - - tx_vector = xd->tx_vectors[queue_id]; - ring = vec_header (tx_vector, sizeof (*ring)); - - n_on_ring = ring->tx_head - ring->tx_tail; - from = vlib_frame_vector_args (f); - - ASSERT (n_packets <= VLIB_FRAME_SIZE); - - if (PREDICT_FALSE (n_on_ring + n_packets > nb_tx_desc)) - { - /* - * Overflowing the ring should never happen. - * If it does then drop the whole frame. - */ - vlib_error_count (vm, node->node_index, DPDK_TX_FUNC_ERROR_RING_FULL, - n_packets); - - while (n_packets--) - { - u32 bi0 = from[n_packets]; - vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); - struct rte_mbuf *mb0 = rte_mbuf_from_vlib_buffer (b0); - rte_pktmbuf_free (mb0); - } - return n_on_ring; - } - - if (PREDICT_FALSE (dm->tx_pcap_enable)) - { - n_left = n_packets; - while (n_left > 0) - { - u32 bi0 = from[0]; - vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); - if (dm->pcap_sw_if_index == 0 || - dm->pcap_sw_if_index == vnet_buffer (b0)->sw_if_index[VLIB_TX]) - pcap_add_buffer (&dm->pcap_main, vm, bi0, 512); - from++; - n_left--; - } - } - - from = vlib_frame_vector_args (f); - n_left = n_packets; - i = ring->tx_head % nb_tx_desc; - - while (n_left >= 8) - { - u32 bi0, bi1, bi2, bi3; - struct rte_mbuf *mb0, *mb1, *mb2, *mb3; - vlib_buffer_t *b0, *b1, *b2, *b3; - u32 or_flags; - - dpdk_prefetch_buffer_by_index (vm, from[4]); - dpdk_prefetch_buffer_by_index (vm, from[5]); - dpdk_prefetch_buffer_by_index (vm, from[6]); - dpdk_prefetch_buffer_by_index (vm, from[7]); - - bi0 = from[0]; - bi1 = from[1]; - bi2 = from[2]; - bi3 = from[3]; - from += 4; - - b0 = vlib_get_buffer (vm, bi0); - b1 = vlib_get_buffer (vm, bi1); - b2 = vlib_get_buffer (vm, bi2); - b3 = vlib_get_buffer (vm, bi3); - - or_flags = b0->flags | b1->flags | b2->flags | b3->flags; - - if (or_flags & VLIB_BUFFER_NEXT_PRESENT) - { - dpdk_validate_rte_mbuf (vm, b0, 1); - dpdk_validate_rte_mbuf (vm, b1, 1); - dpdk_validate_rte_mbuf (vm, b2, 1); - dpdk_validate_rte_mbuf (vm, b3, 1); - } - else - { - dpdk_validate_rte_mbuf (vm, b0, 0); - dpdk_validate_rte_mbuf (vm, b1, 0); - dpdk_validate_rte_mbuf (vm, b2, 0); - dpdk_validate_rte_mbuf (vm, b3, 0); - } - - mb0 = rte_mbuf_from_vlib_buffer (b0); - mb1 = rte_mbuf_from_vlib_buffer (b1); - mb2 = rte_mbuf_from_vlib_buffer (b2); - mb3 = rte_mbuf_from_vlib_buffer (b3); - - if (PREDICT_FALSE (or_flags & VLIB_BUFFER_RECYCLE)) - { - dpdk_buffer_recycle (vm, node, b0, bi0, &mb0); - dpdk_buffer_recycle (vm, node, b1, bi1, &mb1); - dpdk_buffer_recycle (vm, node, b2, bi2, &mb2); - dpdk_buffer_recycle (vm, node, b3, bi3, &mb3); - - /* dont enqueue packets if replication failed as they must - be sent back to recycle */ - if (PREDICT_TRUE ((b0->flags & VLIB_BUFFER_REPL_FAIL) == 0)) - tx_vector[i++ % nb_tx_desc] = mb0; - if (PREDICT_TRUE ((b1->flags & VLIB_BUFFER_REPL_FAIL) == 0)) - tx_vector[i++ % nb_tx_desc] = mb1; - if (PREDICT_TRUE ((b2->flags & VLIB_BUFFER_REPL_FAIL) == 0)) - tx_vector[i++ % nb_tx_desc] = mb2; - if (PREDICT_TRUE ((b3->flags & VLIB_BUFFER_REPL_FAIL) == 0)) - tx_vector[i++ % nb_tx_desc] = mb3; - } - else - { - if (PREDICT_FALSE (i + 3 >= nb_tx_desc)) - { - tx_vector[i++ % nb_tx_desc] = mb0; - tx_vector[i++ % nb_tx_desc] = mb1; - tx_vector[i++ % nb_tx_desc] = mb2; - tx_vector[i++ % nb_tx_desc] = mb3; - i %= nb_tx_desc; - } - else - { - tx_vector[i++] = mb0; - tx_vector[i++] = mb1; - tx_vector[i++] = mb2; - tx_vector[i++] = mb3; - } - } - - - if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE)) - { - if (b0->flags & VLIB_BUFFER_IS_TRACED) - dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi0, b0); - if (b1->flags & VLIB_BUFFER_IS_TRACED) - dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi1, b1); - if (b2->flags & VLIB_BUFFER_IS_TRACED) - dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi2, b2); - if (b3->flags & VLIB_BUFFER_IS_TRACED) - dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi3, b3); - } - - n_left -= 4; - } - while (n_left > 0) - { - u32 bi0; - struct rte_mbuf *mb0; - vlib_buffer_t *b0; - - bi0 = from[0]; - from++; - - b0 = vlib_get_buffer (vm, bi0); - - dpdk_validate_rte_mbuf (vm, b0, 1); - - mb0 = rte_mbuf_from_vlib_buffer (b0); - dpdk_buffer_recycle (vm, node, b0, bi0, &mb0); - - if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE)) - if (b0->flags & VLIB_BUFFER_IS_TRACED) - dpdk_tx_trace_buffer (dm, node, xd, queue_id, bi0, b0); - - if (PREDICT_TRUE ((b0->flags & VLIB_BUFFER_REPL_FAIL) == 0)) - { - tx_vector[i % nb_tx_desc] = mb0; - i++; - } - n_left--; - } - - /* account for additional packets in the ring */ - ring->tx_head += n_packets; - n_on_ring = ring->tx_head - ring->tx_tail; - - /* transmit as many packets as possible */ - n_packets = tx_burst_vector_internal (vm, xd, tx_vector); - - /* - * tx_pkts is the number of packets successfully transmitted - * This is the number originally on ring minus the number remaining on ring - */ - tx_pkts = n_on_ring - n_packets; - - { - /* If there is no callback then drop any non-transmitted packets */ - if (PREDICT_FALSE (n_packets)) - { - 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, my_cpu, xd->vlib_sw_if_index, - n_packets); - - vlib_error_count (vm, node->node_index, DPDK_TX_FUNC_ERROR_PKT_DROP, - n_packets); - - while (n_packets--) - rte_pktmbuf_free (tx_vector[ring->tx_tail + n_packets]); - } - - /* Reset head/tail to avoid unnecessary wrap */ - ring->tx_head = 0; - ring->tx_tail = 0; - } - - /* Recycle replicated buffers */ - if (PREDICT_FALSE (vec_len (dm->recycle[my_cpu]))) - { - vlib_buffer_free (vm, dm->recycle[my_cpu], - vec_len (dm->recycle[my_cpu])); - _vec_len (dm->recycle[my_cpu]) = 0; - } - - ASSERT (ring->tx_head >= ring->tx_tail); - - 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); - - /* - * Set the "last_cleared_stats" to the current stats, so that - * things appear to clear from a display perspective. - */ - dpdk_update_counters (xd, vlib_time_now (dm->vlib_main)); - - clib_memcpy (&xd->last_cleared_stats, &xd->stats, sizeof (xd->stats)); - clib_memcpy (xd->last_cleared_xstats, xd->xstats, - vec_len (xd->last_cleared_xstats) * - sizeof (xd->last_cleared_xstats[0])); - -} - -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); - int rv = 0; - - if (is_up) - { - f64 now = vlib_time_now (dm->vlib_main); - - if ((xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) == 0) - { - rv = rte_eth_dev_start (xd->device_index); - if (!rv && xd->default_mac_address) - rv = rte_eth_dev_default_mac_addr_set (xd->device_index, - (struct ether_addr *) - xd->default_mac_address); - } - - if (xd->flags & DPDK_DEVICE_FLAG_PROMISC) - rte_eth_promiscuous_enable (xd->device_index); - else - rte_eth_promiscuous_disable (xd->device_index); - - rte_eth_allmulticast_enable (xd->device_index); - xd->flags |= DPDK_DEVICE_FLAG_ADMIN_UP; - dpdk_update_counters (xd, now); - dpdk_update_link_state (xd, now); - } - else - { - xd->flags &= ~DPDK_DEVICE_FLAG_ADMIN_UP; - - rte_eth_allmulticast_disable (xd->device_index); - vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, 0); - rte_eth_dev_stop (xd->device_index); - - /* For bonded interface, stop slave links */ - if (xd->pmd == VNET_DPDK_PMD_BOND) - { - u8 slink[16]; - int nlink = rte_eth_bond_slaves_get (xd->device_index, slink, 16); - while (nlink >= 1) - { - u8 dpdk_port = slink[--nlink]; - rte_eth_dev_stop (dpdk_port); - } - } - } - - if (rv < 0) - clib_warning ("rte_eth_dev_%s error: %d", is_up ? "start" : "stop", rv); - - 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 (xm->vlib_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--; - - if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0) - goto done; - - /* currently we program VLANS only for IXGBE VF and I40E VF */ - if ((xd->pmd != VNET_DPDK_PMD_IXGBEVF) && (xd->pmd != VNET_DPDK_PMD_I40EVF)) - 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->device_index); - vlan_offload |= ETH_VLAN_FILTER_OFFLOAD; - - if ((r = rte_eth_dev_set_vlan_offload (xd->device_index, vlan_offload))) - { - xd->num_subifs = prev_subifs; - err = clib_error_return (0, "rte_eth_dev_set_vlan_offload[%d]: err %d", - xd->device_index, r); - goto done; - } - - - if ((r = - rte_eth_dev_vlan_filter (xd->device_index, 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->device_index, 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; -} - -/* *INDENT-OFF* */ -VNET_DEVICE_CLASS (dpdk_device_class) = { - .name = "dpdk", - .tx_function = dpdk_interface_tx, - .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_dma_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, -}; - -VLIB_DEVICE_TX_FUNCTION_MULTIARCH (dpdk_device_class, dpdk_interface_tx) -/* *INDENT-ON* */ - -#define UP_DOWN_FLAG_EVENT 1 - -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 */ -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (admin_up_down_process_node,static) = { - .function = admin_up_down_process, - .type = VLIB_NODE_TYPE_PROCESS, - .name = "admin-up-down-process", - .process_log2_n_stack_bytes = 17, // 256KB -}; -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |