# Copyright (c) 2018 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.
*** Settings ***
| Resource | resources/libraries/robot/performance/performance_setup.robot
| Library | resources.libraries.python.QemuUtils
| ...
| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
| ... | NIC_Intel-X520-DA2 | ETH | L2BDMACLRN | BASE | VHOST | VM | VHOST_256
| ... | CFS_OPT
| ...
| Suite Setup | Set up 3-node performance topology with DUT's NIC model
| ... | L2 | Intel-X520-DA2
| Suite Teardown | Tear down 3-node performance topology
| ...
| Test Setup | Set up performance test
| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
| ... | ${min_rate}pps | ${framesize} | ${traffic_profile}
| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
| ...
| Test Template | Local Template
| ...
| Documentation | *RFC2544: Packet throughput L2BD test cases with vhost*
| ...
| ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
| ... | with single links between nodes.
| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4. 802.1q
| ... | tagging is applied on link between DUT1 and DUT2.
| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 bridge-
| ... | domain and MAC learning enabled. Qemu Guest is connected to VPP via
| ... | vhost-user interfaces. Guest is running DPDK testpmd interconnecting
| ... | vhost-user interfaces using 5 cores pinned to cpus 5-9 and 2048M
| ... | memory. Testpmd is using socket-mem=1024M (512x2M hugepages), 5 cores
| ... | (1 main core and 4 cores dedicated for io), forwarding mode is set to
| ... | io, rxd/txd=256, burst=64. Scheduler policy is set to SCHED_RR with
| ... | priority 1 for all Qemu CPUs. DUT1, DUT2 are tested with 2p10GE NIC X520
| ... | Niantic by Intel.
| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop
| ... | Rate) with zero packet loss tolerance or throughput PDR (Partial Drop
| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage
| ... | of packets transmitted. NDR and PDR are discovered for different
| ... | Ethernet L2 frame sizes using MLRsearch library.
| ... | Test packets are generated by TG on
| ... | links to DUTs. TG traffic profile contains two L3 flow-groups
| ... | (flow-group per direction, 253 flows per flow-group) with all packets
| ... | containing Ethernet header, IPv4 header with IP protocol=61 and static
| ... | payload. MAC addresses are matching MAC addresses of the TG node
| ... | interfaces.
| ... | *[Ref] Applicable standard specifications:* RFC2544.
*** Variables ***
# X520-DA2 bandwidth limit
| ${s_limit} | ${10000000000}
# Traffic profile:
| ${
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/*
* 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 <assert.h>
#include <vnet/ethernet/ethernet.h>
#include <dpdk/buffer.h>
#include <dpdk/device/dpdk.h>
#include <dpdk/device/dpdk_priv.h>
#include <vppinfra/error.h>
#include <vlib/unix/unix.h>
#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)
{
dpdk_tx_queue_t *txq;
u32 n_retry;
int n_sent = 0;
int queue_id;
n_retry = 16;
queue_id = vm->thread_index % xd->conf.n_tx_queues;
txq = vec_elt_at_index (xd->tx_queues, queue_id);
do
{
clib_spinlock_lock_if_init (&txq->lock);
/* no wrap, transmit in one burst */
n_sent = rte_eth_tx_burst (xd->port_id, queue_id, mb, n_left);
clib_spinlock_unlock_if_init (&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);
u32 n_packets = f->n_vectors;
u32 n_left;
u32 thread_index = vm->thread_index;
int queue_id = thread_index;
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);
{
/* 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 |= 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;
/* *INDENT-OFF* */
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;
}
/* *INDENT-ON* */
/* 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_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_RETA_GROUP_SIZE *
sizeof (*reta_conf));
for (i = 0; i < dev_info.reta_size; i++)
{
uint32_t reta_id = i / RTE_RETA_GROUP_SIZE;
uint32_t reta_pos = i % RTE_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;
}
/* *INDENT-OFF* */
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,
};
/* *INDENT-ON* */
#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 */
}
/* *INDENT-OFF* */
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
};
/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/