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gerrit.nordix.org / fdio / vpp / 64ae66903847cff20f0752caa7796b02e2fcec23 / . / vnet / vnet / devices / dpdk / init.c
blob: fac7e9acfeb03dd924d2ab5e37644017f3f39be9 [file] [log] [blame]
/*
* 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/error.h>
#include <vppinfra/format.h>
#include <vppinfra/bitmap.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/devices/dpdk/dpdk.h>
#include <vlib/unix/physmem.h>
#include <vlib/pci/pci.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/mount.h>
#include <string.h>
#include <fcntl.h>
#include "dpdk_priv.h"
dpdk_main_t dpdk_main;
/* force linker to link functions used by vlib and declared weak */
void *vlib_weakly_linked_functions[] = {
&rte_pktmbuf_init,
&rte_pktmbuf_pool_init,
};
#define LINK_STATE_ELOGS 0
#define DEFAULT_HUGE_DIR "/run/vpp/hugepages"
#define VPP_RUN_DIR "/run/vpp"
/* Port configuration, mildly modified Intel app values */
static struct rte_eth_conf port_conf_template = {
.rxmode = {
.split_hdr_size = 0,
.header_split = 0, /**< Header Split disabled */
.hw_ip_checksum = 0, /**< IP checksum offload disabled */
.hw_vlan_filter = 0, /**< VLAN filtering disabled */
.hw_strip_crc = 1, /**< CRC stripped by hardware */
},
.txmode = {
.mq_mode = ETH_MQ_TX_NONE,
},
};
clib_error_t *
dpdk_port_setup (dpdk_main_t * dm, dpdk_device_t * xd)
{
vlib_main_t * vm = vlib_get_main();
vlib_buffer_main_t * bm = vm->buffer_main;
int rv;
int j;
ASSERT(os_get_cpu_number() == 0);
if (xd->admin_up) {
vnet_hw_interface_set_flags (dm->vnet_main, xd->vlib_hw_if_index, 0);
rte_eth_dev_stop (xd->device_index);
}
rv = rte_eth_dev_configure (xd->device_index, xd->rx_q_used,
xd->tx_q_used, &xd->port_conf);
if (rv < 0)
return clib_error_return (0, "rte_eth_dev_configure[%d]: err %d",
xd->device_index, rv);
/* Set up one TX-queue per worker thread */
for (j = 0; j < xd->tx_q_used; j++)
{
rv = rte_eth_tx_queue_setup(xd->device_index, j, xd->nb_tx_desc,
xd->cpu_socket, &xd->tx_conf);
/* retry with any other CPU socket */
if (rv < 0)
rv = rte_eth_tx_queue_setup(xd->device_index, j, xd->nb_tx_desc,
SOCKET_ID_ANY, &xd->tx_conf);
if (rv < 0)
break;
}
if (rv < 0)
return clib_error_return (0, "rte_eth_tx_queue_setup[%d]: err %d",
xd->device_index, rv);
for (j = 0; j < xd->rx_q_used; j++)
{
rv = rte_eth_rx_queue_setup(xd->device_index, j, xd->nb_rx_desc,
xd->cpu_socket, 0,
bm->pktmbuf_pools[xd->cpu_socket_id_by_queue[j]]);
/* retry with any other CPU socket */
if (rv < 0)
rv = rte_eth_rx_queue_setup(xd->device_index, j, xd->nb_rx_desc,
SOCKET_ID_ANY, 0,
bm->pktmbuf_pools[xd->cpu_socket_id_by_queue[j]]);
if (rv < 0)
return clib_error_return (0, "rte_eth_rx_queue_setup[%d]: err %d",
xd->device_index, rv);
}
if (xd->admin_up) {
rte_eth_dev_start (xd->device_index);
}
return 0;
}
static u32 dpdk_flag_change (vnet_main_t * vnm,
vnet_hw_interface_t * hi,
u32 flags)
{
dpdk_main_t * dm = &dpdk_main;
dpdk_device_t * xd = vec_elt_at_index (dm->devices, hi->dev_instance);
u32 old = 0;
if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC(flags))
{
old = xd->promisc;
xd->promisc = flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL;
if (xd->admin_up)
{
if (xd->promisc)
rte_eth_promiscuous_enable(xd->device_index);
else
rte_eth_promiscuous_disable(xd->device_index);
}
}
else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU(flags))
{
/*
* DAW-FIXME: The Cisco VIC firmware does not provide an api for a
* driver to dynamically change the mtu. If/when the
* VIC firmware gets fixed, then this should be removed.
*/
if (xd->pmd == VNET_DPDK_PMD_VICE ||
xd->pmd == VNET_DPDK_PMD_ENIC)
{
struct rte_eth_dev_info dev_info;
/*
* Restore mtu to what has been set by CIMC in the firmware cfg.
*/
rte_eth_dev_info_get(xd->device_index, &dev_info);
hi->max_packet_bytes = dev_info.max_rx_pktlen;
vlib_cli_output (vlib_get_main(),
"Cisco VIC mtu can only be changed "
"using CIMC then rebooting the server!");
}
else
{
int rv;
xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
if (xd->admin_up)
rte_eth_dev_stop (xd->device_index);
rv = rte_eth_dev_configure
(xd->device_index,
xd->rx_q_used,
xd->tx_q_used,
&xd->port_conf);
if (rv < 0)
vlib_cli_output (vlib_get_main(),
"rte_eth_dev_configure[%d]: err %d",
xd->device_index, rv);
rte_eth_dev_set_mtu(xd->device_index, hi->max_packet_bytes);
if (xd->admin_up)
rte_eth_dev_start (xd->device_index);
}
}
return old;
}
#ifdef NETMAP
extern int rte_netmap_probe(void);
#endif
void
dpdk_device_lock_init(dpdk_device_t * xd)
{
int q;
vec_validate(xd->lockp, xd->tx_q_used - 1);
for (q = 0; q < xd->tx_q_used; q++)
{
xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
CLIB_CACHE_LINE_BYTES);
memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
}
xd->need_txlock = 1;
}
void
dpdk_device_lock_free(dpdk_device_t * xd)
{
int q;
for (q = 0; q < vec_len(xd->lockp); q++)
clib_mem_free((void *) xd->lockp[q]);
vec_free(xd->lockp);
xd->lockp = 0;
xd->need_txlock = 0;
}
static clib_error_t *
dpdk_lib_init (dpdk_main_t * dm)
{
u32 nports;
u32 nb_desc = 0;
int i;
clib_error_t * error;
vlib_main_t * vm = vlib_get_main();
vlib_thread_main_t * tm = vlib_get_thread_main();
vnet_sw_interface_t * sw;
vnet_hw_interface_t * hi;
dpdk_device_t * xd;
vlib_thread_registration_t * tr;
uword * p;
u32 next_cpu = 0;
u8 af_packet_port_id = 0;
dm->input_cpu_first_index = 0;
dm->input_cpu_count = 1;
/* find out which cpus will be used for input */
p = hash_get_mem (tm->thread_registrations_by_name, "io");
tr = p ? (vlib_thread_registration_t *) p[0] : 0;
if (!tr || tr->count == 0)
{
/* no io threads, workers doing input */
p = hash_get_mem (tm->thread_registrations_by_name, "workers");
tr = p ? (vlib_thread_registration_t *) p[0] : 0;
}
else
{
dm->have_io_threads = 1;
}
if (tr && tr->count > 0)
{
dm->input_cpu_first_index = tr->first_index;
dm->input_cpu_count = tr->count;
}
vec_validate_aligned (dm->devices_by_cpu, tm->n_vlib_mains - 1,
CLIB_CACHE_LINE_BYTES);
vec_validate_aligned (dm->workers, tm->n_vlib_mains - 1,
CLIB_CACHE_LINE_BYTES);
#ifdef NETMAP
if(rte_netmap_probe() < 0)
return clib_error_return (0, "rte netmap probe failed");
#endif
nports = rte_eth_dev_count();
if (nports < 1)
{
clib_warning ("DPDK drivers found no ports...");
}
if (CLIB_DEBUG > 0)
clib_warning ("DPDK drivers found %d ports...", nports);
/*
* All buffers are all allocated from the same rte_mempool.
* Thus they all have the same number of data bytes.
*/
dm->vlib_buffer_free_list_index =
vlib_buffer_get_or_create_free_list (
vm, VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES, "dpdk rx");
if (dm->conf->enable_tcp_udp_checksum)
dm->buffer_flags_template &= ~(IP_BUFFER_L4_CHECKSUM_CORRECT
| IP_BUFFER_L4_CHECKSUM_COMPUTED);
for (i = 0; i < nports; i++)
{
u8 addr[6];
int j;
struct rte_eth_dev_info dev_info;
clib_error_t * rv;
struct rte_eth_link l;
/* Create vnet interface */
vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
xd->cpu_socket = (i8) rte_eth_dev_socket_id(i);
rte_eth_dev_info_get(i, &dev_info);
clib_memcpy(&xd->tx_conf, &dev_info.default_txconf,
sizeof(struct rte_eth_txconf));
if (dm->conf->no_multi_seg)
{
xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
port_conf_template.rxmode.jumbo_frame = 0;
}
else
{
xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
port_conf_template.rxmode.jumbo_frame = 1;
}
clib_memcpy(&xd->port_conf, &port_conf_template, sizeof(struct rte_eth_conf));
xd->tx_q_used = clib_min(dev_info.max_tx_queues, tm->n_vlib_mains);
if (dm->conf->max_tx_queues)
xd->tx_q_used = clib_min(xd->tx_q_used, dm->conf->max_tx_queues);
if (dm->conf->use_rss > 1 && dev_info.max_rx_queues >= dm->conf->use_rss)
{
xd->rx_q_used = dm->conf->use_rss;
xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
xd->port_conf.rx_adv_conf.rss_conf.rss_hf = ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
}
else
xd->rx_q_used = 1;
xd->dev_type = VNET_DPDK_DEV_ETH;
/* workaround for drivers not setting driver_name */
if (!dev_info.driver_name)
dev_info.driver_name = dev_info.pci_dev->driver->name;
ASSERT(dev_info.driver_name);
if (!xd->pmd) {
#define _(s,f) else if (!strcmp(dev_info.driver_name, s)) \
xd->pmd = VNET_DPDK_PMD_##f;
if (0)
;
foreach_dpdk_pmd
#undef _
else
xd->pmd = VNET_DPDK_PMD_UNKNOWN;
switch (xd->pmd) {
/* 1G adapters */
case VNET_DPDK_PMD_E1000EM:
case VNET_DPDK_PMD_IGB:
case VNET_DPDK_PMD_IGBVF:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
break;
/* 10G adapters */
case VNET_DPDK_PMD_IXGBE:
case VNET_DPDK_PMD_IXGBEVF:
case VNET_DPDK_PMD_THUNDERX:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
break;
/* Cisco VIC */
case VNET_DPDK_PMD_VICE:
case VNET_DPDK_PMD_ENIC:
rte_eth_link_get_nowait(i, &l);
if (l.link_speed == 40000)
{
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
}
else
{
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
}
break;
/* Intel Fortville */
case VNET_DPDK_PMD_I40E:
case VNET_DPDK_PMD_I40EVF:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
switch (dev_info.pci_dev->id.device_id) {
case I40E_DEV_ID_10G_BASE_T:
case I40E_DEV_ID_SFP_XL710:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
break;
case I40E_DEV_ID_QSFP_A:
case I40E_DEV_ID_QSFP_B:
case I40E_DEV_ID_QSFP_C:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
break;
case I40E_DEV_ID_VF:
rte_eth_link_get_nowait(i, &l);
xd->port_type = l.link_speed == 10000 ?
VNET_DPDK_PORT_TYPE_ETH_10G : VNET_DPDK_PORT_TYPE_ETH_40G;
break;
default:
xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
}
break;
case VNET_DPDK_PMD_CXGBE:
switch (dev_info.pci_dev->id.device_id) {
case 0x5410: /* T580-LP-cr */
xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
break;
default:
xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
}
break;
/* Intel Red Rock Canyon */
case VNET_DPDK_PMD_FM10K:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
break;
/* virtio */
case VNET_DPDK_PMD_VIRTIO:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
break;
/* vmxnet3 */
case VNET_DPDK_PMD_VMXNET3:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
break;
case VNET_DPDK_PMD_AF_PACKET:
xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
xd->af_packet_port_id = af_packet_port_id++;
break;
case VNET_DPDK_PMD_BOND:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
break;
default:
xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
}
#ifdef NETMAP
if(strncmp(dev_info.driver_name, "vale", 4) == 0
|| strncmp(dev_info.driver_name, "netmap", 6) == 0)
{
xd->pmd = VNET_DPDK_PMD_NETMAP;
xd->port_type = VNET_DPDK_PORT_TYPE_NETMAP;
}
#endif
}
/*
* Ensure default mtu is not > the mtu read from the hardware.
* Otherwise rte_eth_dev_configure() will fail and the port will
* not be available.
*/
if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
{
/*
* This device does not support the platforms's max frame
* size. Use it's advertised mru instead.
*/
xd->port_conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
}
else
{
xd->port_conf.rxmode.max_rx_pkt_len = ETHERNET_MAX_PACKET_BYTES;
/*
* Some platforms do not account for Ethernet FCS (4 bytes) in
* MTU calculations. To interop with them increase mru but only
* if the device's settings can support it.
*/
if ((dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)) &&
xd->port_conf.rxmode.hw_strip_crc)
{
/*
* Allow additional 4 bytes (for Ethernet FCS). These bytes are
* stripped by h/w and so will not consume any buffer memory.
*/
xd->port_conf.rxmode.max_rx_pkt_len += 4;
}
}
#if RTE_VERSION < RTE_VERSION_NUM(16, 4, 0, 0)
/*
* Older VMXNET3 driver doesn't support jumbo / multi-buffer pkts
*/
if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
{
xd->port_conf.rxmode.max_rx_pkt_len = 1518;
xd->port_conf.rxmode.jumbo_frame = 0;
}
#endif
if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
{
f64 now = vlib_time_now(vm);
u32 rnd;
rnd = (u32) (now * 1e6);
rnd = random_u32 (&rnd);
clib_memcpy (addr+2, &rnd, sizeof(rnd));
addr[0] = 2;
addr[1] = 0xfe;
}
else
rte_eth_macaddr_get(i,(struct ether_addr *)addr);
if (xd->tx_q_used < tm->n_vlib_mains)
dpdk_device_lock_init(xd);
xd->device_index = xd - dm->devices;
ASSERT(i == xd->device_index);
xd->per_interface_next_index = ~0;
/* assign interface to input thread */
dpdk_device_and_queue_t * dq;
int q;
for (q = 0; q < xd->rx_q_used; q++)
{
int cpu = dm->input_cpu_first_index + next_cpu;
unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id;
/*
* numa node for worker thread handling this queue
* needed for taking buffers from the right mempool
*/
vec_validate(xd->cpu_socket_id_by_queue, q);
xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore);
/*
* construct vector of (device,queue) pairs for each worker thread
*/
vec_add2(dm->devices_by_cpu[cpu], dq, 1);
dq->device = xd->device_index;
dq->queue_id = q;
next_cpu++;
if (next_cpu == dm->input_cpu_count)
next_cpu = 0;
}
vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
CLIB_CACHE_LINE_BYTES);
for (j = 0; j < tm->n_vlib_mains; j++)
{
vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
vec_reset_length (xd->tx_vectors[j]);
}
vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
CLIB_CACHE_LINE_BYTES);
for (j = 0; j< xd->rx_q_used; j++)
{
vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
CLIB_CACHE_LINE_BYTES);
vec_reset_length (xd->rx_vectors[j]);
}
vec_validate_aligned (xd->frames, tm->n_vlib_mains,
CLIB_CACHE_LINE_BYTES);
rv = dpdk_port_setup(dm, xd);
if (rv < 0)
return rv;
/* count the number of descriptors used for this device */
nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
error = ethernet_register_interface
(dm->vnet_main,
dpdk_device_class.index,
xd->device_index,
/* ethernet address */ addr,
&xd->vlib_hw_if_index,
dpdk_flag_change);
if (error)
return error;
sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
xd->vlib_sw_if_index = sw->sw_if_index;
hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
/*
* DAW-FIXME: The Cisco VIC firmware does not provide an api for a
* driver to dynamically change the mtu. If/when the
* VIC firmware gets fixed, then this should be removed.
*/
if (xd->pmd == VNET_DPDK_PMD_VICE ||
xd->pmd == VNET_DPDK_PMD_ENIC)
{
/*
* Initialize mtu to what has been set by CIMC in the firmware cfg.
*/
hi->max_packet_bytes = dev_info.max_rx_pktlen;
/*
* remove vlan tag from VIC port to fix VLAN0 issue.
* TODO Handle VLAN tagged traffic
*/
int vlan_off;
vlan_off = rte_eth_dev_get_vlan_offload(xd->device_index);
vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
rte_eth_dev_set_vlan_offload(xd->device_index, vlan_off);
}
#if RTE_VERSION < RTE_VERSION_NUM(16, 4, 0, 0)
/*
* Older VMXNET3 driver doesn't support jumbo / multi-buffer pkts
*/
else if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
hi->max_packet_bytes = 1518;
#endif
hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
xd->port_conf.rxmode.max_rx_pkt_len - sizeof(ethernet_header_t);
rte_eth_dev_set_mtu(xd->device_index, hi->max_packet_bytes);
}
#ifdef RTE_LIBRTE_KNI
if (dm->conf->num_kni) {
clib_warning("Initializing KNI interfaces...");
rte_kni_init(dm->conf->num_kni);
for (i = 0; i < dm->conf->num_kni; i++)
{
u8 addr[6];
int j;
/* Create vnet interface */
vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
xd->dev_type = VNET_DPDK_DEV_KNI;
xd->device_index = xd - dm->devices;
ASSERT(nports + i == xd->device_index);
xd->per_interface_next_index = ~0;
xd->kni_port_id = i;
xd->cpu_socket = -1;
hash_set (dm->dpdk_device_by_kni_port_id, i, xd - dm->devices);
xd->rx_q_used = 1;
/* assign interface to input thread */
dpdk_device_and_queue_t * dq;
vec_add2(dm->devices_by_cpu[dm->input_cpu_first_index], dq, 1);
dq->device = xd->device_index;
dq->queue_id = 0;
vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
CLIB_CACHE_LINE_BYTES);
for (j = 0; j < tm->n_vlib_mains; j++)
{
vec_validate_ha (xd->tx_vectors[j], DPDK_TX_RING_SIZE,
sizeof(tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
vec_reset_length (xd->tx_vectors[j]);
}
vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
CLIB_CACHE_LINE_BYTES);
for (j = 0; j< xd->rx_q_used; j++)
{
vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE-1,
CLIB_CACHE_LINE_BYTES);
vec_reset_length (xd->rx_vectors[j]);
}
vec_validate_aligned (xd->frames, tm->n_vlib_mains,
CLIB_CACHE_LINE_BYTES);
/* FIXME Set up one TX-queue per worker thread */
{
f64 now = vlib_time_now(vm);
u32 rnd;
rnd = (u32) (now * 1e6);
rnd = random_u32 (&rnd);
clib_memcpy (addr+2, &rnd, sizeof(rnd));
addr[0] = 2;
addr[1] = 0xfe;
}
error = ethernet_register_interface
(dm->vnet_main,
dpdk_device_class.index,
xd->device_index,
/* ethernet address */ addr,
&xd->vlib_hw_if_index,
dpdk_flag_change);
if (error)
return error;
sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
xd->vlib_sw_if_index = sw->sw_if_index;
hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
}
}
#endif
if (nb_desc > dm->conf->num_mbufs)
clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
dm->conf->num_mbufs, nb_desc);
/* init next vhost-user if index */
dm->next_vu_if_id = 0;
return 0;
}
static void
dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
{
vlib_pci_main_t * pm = &pci_main;
clib_error_t * error;
vlib_pci_device_t * d;
pci_config_header_t * c;
u8 * pci_addr = 0;
pool_foreach (d, pm->pci_devs, ({
c = &d->config0.header;
vec_reset_length (pci_addr);
pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, &d->bus_address, 0);
if (c->device_class != PCI_CLASS_NETWORK_ETHERNET)
continue;
/* if whitelist exists process only whitelisted devices */
if (conf->eth_if_whitelist &&
!strstr ((char *) conf->eth_if_whitelist, (char *) pci_addr))
continue;
/* virtio */
if (c->vendor_id == 0x1af4 && c->device_id == 0x1000)
;
/* vmxnet3 */
else if (c->vendor_id == 0x15ad && c->device_id == 0x07b0)
;
/* all Intel devices */
else if (c->vendor_id == 0x8086)
;
/* Cisco VIC */
else if (c->vendor_id == 0x1137 && c->device_id == 0x0043)
;
/* Chelsio T4/T5 */
else if (c->vendor_id == 0x1425 && (c->device_id & 0xe000) == 0x4000)
;
else
{
clib_warning ("Unsupported Ethernet PCI device 0x%04x:0x%04x found "
"at PCI address %s\n", (u16) c->vendor_id, (u16) c->device_id,
pci_addr);
continue;
}
error = vlib_pci_bind_to_uio (d, (char *) conf->uio_driver_name);
if (error)
{
if (!conf->eth_if_whitelist)
conf->eth_if_blacklist = format (conf->eth_if_blacklist, "%U ",
format_vlib_pci_addr, &d->bus_address);
clib_error_report (error);
}
}));
vec_free (pci_addr);
}
static clib_error_t *
dpdk_config (vlib_main_t * vm, unformat_input_t * input)
{
clib_error_t * error = 0;
dpdk_config_main_t * conf = &dpdk_config_main;
vlib_thread_main_t * tm = vlib_get_thread_main();
vlib_node_runtime_t * rt = vlib_node_get_runtime (vm, dpdk_input_node.index);
u8 * s, * tmp = 0;
u8 * pci_dev_id = 0;
u8 * rte_cmd = 0, * ethname = 0;
u32 log_level;
int ret, i;
char * fmt;
#ifdef NETMAP
int rxrings, txrings, rxslots, txslots, txburst;
char * nmnam;
#endif
unformat_input_t _in;
unformat_input_t * in = &_in;
u8 no_pci = 0;
u8 no_huge = 0;
u8 huge_dir = 0;
u8 file_prefix = 0;
u8 * socket_mem = 0;
// MATT-FIXME: inverted virtio-vhost logic to use virtio by default
conf->use_virtio_vhost = 1;
while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
{
/* Prime the pump */
if (unformat (input, "no-hugetlb"))
{
vec_add1 (conf->eal_init_args, (u8 *) "no-huge");
no_huge = 1;
}
else if (unformat (input, "enable-tcp-udp-checksum"))
conf->enable_tcp_udp_checksum = 1;
else if (unformat (input, "decimal-interface-names"))
conf->interface_name_format_decimal = 1;
else if (unformat (input, "no-multi-seg"))
conf->no_multi_seg = 1;
else if (unformat (input, "dev %s", &pci_dev_id))
{
if (conf->eth_if_whitelist)
{
/*
* Don't add duplicate device id's.
*/
if (strstr ((char *)conf->eth_if_whitelist, (char *)pci_dev_id))
continue;
_vec_len (conf->eth_if_whitelist) -= 1; // chomp trailing NULL.
conf->eth_if_whitelist = format (conf->eth_if_whitelist, " %s%c",
pci_dev_id, 0);
}
else
conf->eth_if_whitelist = format (0, "%s%c", pci_dev_id, 0);
}
#ifdef NETMAP
else if (unformat(input, "netmap %s/%d:%d/%d:%d/%d",
&nmname, &rxrings, &rxslots, &txrings, &txslots, &txburst)) {
char * rv;
rv = (char *)
eth_nm_args(nmname, rxrings, rxslots, txrings, txslots, txburst);
if (rv) {
error = clib_error_return (0, "%s", rv);
goto done;
}
}else if (unformat(input, "netmap %s", &nmname)) {
char * rv;
rv = (char *)
eth_nm_args(nmname, 0, 0, 0, 0, 0);
if (rv) {
error = clib_error_return (0, "%s", rv);
goto done;
}
}
#endif
else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
;
else if (unformat (input, "max-tx-queues %d", &conf->max_tx_queues))
;
else if (unformat (input, "kni %d", &conf->num_kni))
;
else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
;
else if (unformat (input, "socket-mem %s", &socket_mem))
;
else if (unformat (input, "vhost-user-coalesce-frames %d", &conf->vhost_coalesce_frames))
;
else if (unformat (input, "vhost-user-coalesce-time %f", &conf->vhost_coalesce_time))
;
else if (unformat (input, "enable-vhost-user"))
conf->use_virtio_vhost = 0;
else if (unformat (input, "rss %d", &conf->use_rss))
;
#define _(a) \
else if (unformat(input, #a)) \
{ \
if (!strncmp(#a, "no-pci", 6)) \
no_pci = 1; \
tmp = format (0, "--%s%c", #a, 0); \
vec_add1 (conf->eal_init_args, tmp); \
}
foreach_eal_double_hyphen_predicate_arg
#undef _
#define _(a) \
else if (unformat(input, #a " %s", &s)) \
{ \
if (!strncmp(#a, "huge-dir", 8)) \
huge_dir = 1; \
else if (!strncmp(#a, "file-prefix", 11)) \
file_prefix = 1; \
tmp = format (0, "--%s%c", #a, 0); \
vec_add1 (conf->eal_init_args, tmp); \
vec_add1 (s, 0); \
vec_add1 (conf->eal_init_args, s); \
}
foreach_eal_double_hyphen_arg
#undef _
#define _(a,b) \
else if (unformat(input, #a " %s", &s)) \
{ \
tmp = format (0, "-%s%c", #b, 0); \
vec_add1 (conf->eal_init_args, tmp); \
vec_add1 (s, 0); \
vec_add1 (conf->eal_init_args, s); \
}
foreach_eal_single_hyphen_arg
#undef _
#define _(a,b) \
else if (unformat(input, #a " %s", &s)) \
{ \
tmp = format (0, "-%s%c", #b, 0); \
vec_add1 (conf->eal_init_args, tmp); \
vec_add1 (s, 0); \
vec_add1 (conf->eal_init_args, s); \
conf->a##_set_manually = 1; \
}
foreach_eal_single_hyphen_mandatory_arg
#undef _
else if (unformat(input, "default"))
;
else
{
error = clib_error_return (0, "unknown input `%U'",
format_unformat_error, input);
goto done;
}
}
if (!conf->uio_driver_name)
conf->uio_driver_name = format (0, "igb_uio%c", 0);
/*
* Use 1G huge pages if available.
*/
if (!no_huge && !huge_dir)
{
u32 x, * mem_by_socket = 0;
uword c = 0;
u8 use_1g = 1;
u8 use_2m = 1;
u8 less_than_1g = 1;
int rv;
umount(DEFAULT_HUGE_DIR);
/* Process "socket-mem" parameter value */
if (vec_len (socket_mem))
{
unformat_input_t in;
unformat_init_vector(&in, socket_mem);
while (unformat_check_input (&in) != UNFORMAT_END_OF_INPUT)
{
if (unformat (&in, "%u,", &x))
;
else if (unformat (&in, "%u", &x))
;
else if (unformat (&in, ","))
x = 0;
else
break;
vec_add1(mem_by_socket, x);
if (x > 1023)
less_than_1g = 0;
}
/* Note: unformat_free vec_frees(in.buffer), aka socket_mem... */
unformat_free(&in);
socket_mem = 0;
}
else
{
clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
{
vec_validate(mem_by_socket, c);
mem_by_socket[c] = 512; /* default per-socket mem */
}
));
}
/* check if available enough 1GB pages for each socket */
clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
{
u32 pages_avail, page_size, mem;
u8 *s = 0;
u8 *p = 0;
char * numa_path = "/sys/devices/system/node/node%u/";
char * nonnuma_path = "/sys/kernel/mm/";
char * suffix = "hugepages/hugepages-%ukB/free_hugepages%c";
char * path = NULL;
struct stat sb_numa, sb_nonnuma;
p = format(p, numa_path, c);
stat(numa_path, &sb_numa);
stat(nonnuma_path, &sb_nonnuma);
if (S_ISDIR(sb_numa.st_mode)) {
path = (char*)format((u8*)path, "%s%s", p, suffix);
} else if (S_ISDIR(sb_nonnuma.st_mode)) {
path = (char*)format((u8*)path, "%s%s", nonnuma_path, suffix);
} else {
use_1g = 0;
use_2m = 0;
vec_free(p);
break;
}
vec_validate(mem_by_socket, c);
mem = mem_by_socket[c];
page_size = 1024;
pages_avail = 0;
s = format (s, path, page_size * 1024, 0);
vlib_sysfs_read ((char *) s, "%u", &pages_avail);
vec_reset_length (s);
if (page_size * pages_avail < mem)
use_1g = 0;
page_size = 2;
pages_avail = 0;
s = format (s, path, page_size * 1024, 0);
vlib_sysfs_read ((char *) s, "%u", &pages_avail);
vec_reset_length (s);
if (page_size * pages_avail < mem)
use_2m = 0;
vec_free(s);
vec_free(p);
vec_free(path);
}));
_vec_len (mem_by_socket) = c + 1;
/* regenerate socket_mem string */
vec_foreach_index (x, mem_by_socket)
socket_mem = format (socket_mem, "%s%u",
socket_mem ? "," : "",
mem_by_socket[x]);
socket_mem = format (socket_mem, "%c", 0);
vec_free (mem_by_socket);
rv = mkdir(VPP_RUN_DIR, 0755);
if (rv && errno != EEXIST)
{
error = clib_error_return (0, "mkdir '%s' failed errno %d",
VPP_RUN_DIR, errno);
goto done;
}
rv = mkdir(DEFAULT_HUGE_DIR, 0755);
if (rv && errno != EEXIST)
{
error = clib_error_return (0, "mkdir '%s' failed errno %d",
DEFAULT_HUGE_DIR, errno);
goto done;
}
if (use_1g && !(less_than_1g && use_2m))
{
rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G");
}
else if (use_2m)
{
rv = mount("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL);
}
else
{
return clib_error_return (0, "not enough free huge pages");
}
if (rv)
{
error = clib_error_return (0, "mount failed %d", errno);
goto done;
}
tmp = format (0, "--huge-dir%c", 0);
vec_add1 (conf->eal_init_args, tmp);
tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0);
vec_add1 (conf->eal_init_args, tmp);
if (!file_prefix)
{
tmp = format (0, "--file-prefix%c", 0);
vec_add1 (conf->eal_init_args, tmp);
tmp = format (0, "vpp%c", 0);
vec_add1 (conf->eal_init_args, tmp);
}
}
vec_free (rte_cmd);
vec_free (ethname);
if (error)
return error;
/* I'll bet that -c and -n must be the first and second args... */
if (!conf->coremask_set_manually)
{
vlib_thread_registration_t * tr;
uword * coremask = 0;
int i;
/* main thread core */
coremask = clib_bitmap_set(coremask, tm->main_lcore, 1);
for (i = 0; i < vec_len (tm->registrations); i++)
{
tr = tm->registrations[i];
coremask = clib_bitmap_or(coremask, tr->coremask);
}
vec_insert (conf->eal_init_args, 2, 1);
conf->eal_init_args[1] = (u8 *) "-c";
tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
conf->eal_init_args[2] = tmp;
clib_bitmap_free(coremask);
}
if (!conf->nchannels_set_manually)
{
vec_insert (conf->eal_init_args, 2, 3);
conf->eal_init_args[3] = (u8 *) "-n";
tmp = format (0, "%d", conf->nchannels);
conf->eal_init_args[4] = tmp;
}
if (no_pci == 0 && geteuid() == 0)
dpdk_bind_devices_to_uio(conf);
/*
* If there are whitelisted devices,
* add the whitelist option & device list to the dpdk arg list...
*/
if (conf->eth_if_whitelist)
{
unformat_init_string (in, (char *) conf->eth_if_whitelist,
vec_len (conf->eth_if_whitelist) - 1);
fmt = "-w%c";
}
/*
* Otherwise add the blacklisted devices to the dpdk arg list.
*/
else
{
unformat_init_string (in, (char *)conf->eth_if_blacklist,
vec_len(conf->eth_if_blacklist) - 1);
fmt = "-b%c";
}
while (unformat_check_input (in) != UNFORMAT_END_OF_INPUT)
{
tmp = format (0, fmt, 0);
vec_add1 (conf->eal_init_args, tmp);
unformat (in, "%s", &pci_dev_id);
vec_add1 (conf->eal_init_args, pci_dev_id);
}
/* set master-lcore */
tmp = format (0, "--master-lcore%c", 0);
vec_add1 (conf->eal_init_args, tmp);
tmp = format (0, "%u%c", tm->main_lcore, 0);
vec_add1 (conf->eal_init_args, tmp);
/* set socket-mem */
tmp = format (0, "--socket-mem%c", 0);
vec_add1 (conf->eal_init_args, tmp);
tmp = format (0, "%s%c", socket_mem, 0);
vec_add1 (conf->eal_init_args, tmp);
/* NULL terminate the "argv" vector, in case of stupidity */
vec_add1 (conf->eal_init_args, 0);
_vec_len(conf->eal_init_args) -= 1;
/* Set up DPDK eal and packet mbuf pool early. */
log_level = (CLIB_DEBUG > 0) ? RTE_LOG_DEBUG : RTE_LOG_NOTICE;
rte_set_log_level (log_level);
vm = vlib_get_main ();
/* make copy of args as rte_eal_init tends to mess up with arg array */
for (i = 1; i < vec_len(conf->eal_init_args); i++)
conf->eal_init_args_str = format(conf->eal_init_args_str, "%s ",
conf->eal_init_args[i]);
ret = rte_eal_init(vec_len(conf->eal_init_args), (char **) conf->eal_init_args);
/* lazy umount hugepages */
umount2(DEFAULT_HUGE_DIR, MNT_DETACH);
if (ret < 0)
return clib_error_return (0, "rte_eal_init returned %d", ret);
/* Dump the physical memory layout prior to creating the mbuf_pool */
fprintf(stdout, "DPDK physical memory layout:\n");
rte_dump_physmem_layout(stdout);
/* main thread 1st */
error = vlib_buffer_pool_create(vm, conf->num_mbufs, rte_socket_id());
if (error)
return error;
for (i = 0; i < RTE_MAX_LCORE; i++)
{
error = vlib_buffer_pool_create(vm, conf->num_mbufs,
rte_lcore_to_socket_id(i));
if (error)
return error;
}
if (conf->use_rss)
rt->function = dpdk_input_rss_multiarch_select();
else
rt->function = dpdk_input_multiarch_select();
done:
return error;
}
VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
void dpdk_update_link_state (dpdk_device_t * xd, f64 now)
{
vnet_main_t * vnm = vnet_get_main();
struct rte_eth_link prev_link = xd->link;
u32 hw_flags = 0;
u8 hw_flags_chg = 0;
/* only update link state for PMD interfaces */
if (xd->dev_type != VNET_DPDK_DEV_ETH)
return;
xd->time_last_link_update = now ? now : xd->time_last_link_update;
memset(&xd->link, 0, sizeof(xd->link));
rte_eth_link_get_nowait (xd->device_index, &xd->link);
if (LINK_STATE_ELOGS)
{
vlib_main_t * vm = vlib_get_main();
ELOG_TYPE_DECLARE(e) = {
.format =
"update-link-state: sw_if_index %d, admin_up %d,"
"old link_state %d new link_state %d",
.format_args = "i4i1i1i1",
};
struct { u32 sw_if_index; u8 admin_up;
u8 old_link_state; u8 new_link_state;} *ed;
ed = ELOG_DATA (&vm->elog_main, e);
ed->sw_if_index = xd->vlib_sw_if_index;
ed->admin_up = xd->admin_up;
ed->old_link_state = (u8)
vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index);
ed->new_link_state = (u8) xd->link.link_status;
}
if ((xd->admin_up == 1) &&
((xd->link.link_status != 0) ^
vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index)))
{
hw_flags_chg = 1;
hw_flags |= (xd->link.link_status ?
VNET_HW_INTERFACE_FLAG_LINK_UP: 0);
}
if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
{
hw_flags_chg = 1;
switch (xd->link.link_duplex)
{
case ETH_LINK_HALF_DUPLEX:
hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
break;
case ETH_LINK_FULL_DUPLEX:
hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
break;
default:
break;
}
}
#if RTE_VERSION >= RTE_VERSION_NUM(16, 4, 0, 0)
if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
{
hw_flags_chg = 1;
switch (xd->link.link_speed)
{
case ETH_SPEED_NUM_10M:
hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
break;
case ETH_SPEED_NUM_100M:
hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
break;
case ETH_SPEED_NUM_1G:
hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
break;
case ETH_SPEED_NUM_10G:
hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
break;
case ETH_SPEED_NUM_40G:
hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
break;
case 0:
break;
default:
clib_warning("unknown link speed %d", xd->link.link_speed);
break;
}
}
#else
if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
{
hw_flags_chg = 1;
switch (xd->link.link_speed)
{
case ETH_LINK_SPEED_10:
hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
break;
case ETH_LINK_SPEED_100:
hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
break;
case ETH_LINK_SPEED_1000:
hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
break;
case ETH_LINK_SPEED_10000:
hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
break;
case ETH_LINK_SPEED_40G:
hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
break;
case 0:
break;
default:
clib_warning("unknown link speed %d", xd->link.link_speed);
break;
}
}
#endif
if (hw_flags_chg)
{
if (LINK_STATE_ELOGS)
{
vlib_main_t * vm = vlib_get_main();
ELOG_TYPE_DECLARE(e) = {
.format = "update-link-state: sw_if_index %d, new flags %d",
.format_args = "i4i4",
};
struct { u32 sw_if_index; u32 flags; } *ed;
ed = ELOG_DATA (&vm->elog_main, e);
ed->sw_if_index = xd->vlib_sw_if_index;
ed->flags = hw_flags;
}
vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, hw_flags);
}
}
static uword
dpdk_process (vlib_main_t * vm,
vlib_node_runtime_t * rt,
vlib_frame_t * f)
{
clib_error_t * error;
vnet_main_t * vnm = vnet_get_main();
dpdk_main_t * dm = &dpdk_main;
ethernet_main_t * em = &ethernet_main;
dpdk_device_t * xd;
vlib_thread_main_t * tm = vlib_get_thread_main();
void *vu_state;
int i;
error = dpdk_lib_init (dm);
/*
* Turn on the input node if we found some devices to drive
* and we're not running worker threads or i/o threads
*/
if (error == 0 && vec_len(dm->devices) > 0)
{
if (tm->n_vlib_mains == 1)
vlib_node_set_state (vm, dpdk_input_node.index,
VLIB_NODE_STATE_POLLING);
else if (tm->main_thread_is_io_node)
vlib_node_set_state (vm, dpdk_io_input_node.index,
VLIB_NODE_STATE_POLLING);
else if (!dm->have_io_threads)
for (i=0; i < tm->n_vlib_mains; i++)
if (vec_len(dm->devices_by_cpu[i]) > 0)
vlib_node_set_state (vlib_mains[i], dpdk_input_node.index,
VLIB_NODE_STATE_POLLING);
}
if (error)
clib_error_report (error);
dpdk_vhost_user_process_init(&vu_state);
dm->io_thread_release = 1;
f64 now = vlib_time_now (vm);
vec_foreach (xd, dm->devices)
{
dpdk_update_link_state (xd, now);
}
{ // Extra set up for bond interfaces:
// 1. Setup MACs for bond interfaces and their slave links which was set
// in dpdk_port_setup() but needs to be done again here to take effect.
// 2. Set max L3 packet size of each bond interface to the lowerst value of
// its slave links
// 3. Set up info for bond interface related CLI support.
int nports = rte_eth_dev_count();
if (nports > 0) {
for (i = 0; i < nports; i++) {
struct rte_eth_dev_info dev_info;
rte_eth_dev_info_get(i, &dev_info);
if (!dev_info.driver_name)
dev_info.driver_name = dev_info.pci_dev->driver->name;
ASSERT(dev_info.driver_name);
if (strncmp(dev_info.driver_name, "rte_bond_pmd", 12) == 0) {
u8 addr[6];
u8 slink[16];
int nlink = rte_eth_bond_slaves_get(i, slink, 16);
if (nlink > 0) {
vnet_hw_interface_t * bhi;
ethernet_interface_t * bei;
/* Get MAC of 1st slave link */
rte_eth_macaddr_get(slink[0], (struct ether_addr *)addr);
/* Set MAC of bounded interface to that of 1st slave link */
rte_eth_bond_mac_address_set(i, (struct ether_addr *)addr);
/* Populate MAC of bonded interface in VPP hw tables */
bhi = vnet_get_hw_interface(
vnm, dm->devices[i].vlib_hw_if_index);
bei = pool_elt_at_index(em->interfaces, bhi->hw_instance);
clib_memcpy(bhi->hw_address, addr, 6);
clib_memcpy(bei->address, addr, 6);
/* Init l3 packet size allowed on bonded interface */
bhi->max_l3_packet_bytes[VLIB_RX] =
bhi->max_l3_packet_bytes[VLIB_TX] =
ETHERNET_MAX_PACKET_BYTES - sizeof(ethernet_header_t);
while (nlink >= 1) { /* for all slave links */
int slave = slink[--nlink];
dpdk_device_t * sdev = &dm->devices[slave];
vnet_hw_interface_t * shi;
vnet_sw_interface_t * ssi;
/* Add MAC to all slave links except the first one */
if (nlink) rte_eth_dev_mac_addr_add(
slave, (struct ether_addr *)addr, 0);
/* Set slaves bitmap for bonded interface */
bhi->bond_info = clib_bitmap_set(
bhi->bond_info, sdev->vlib_hw_if_index, 1);
/* Set slave link flags on slave interface */
shi = vnet_get_hw_interface(vnm, sdev->vlib_hw_if_index);
ssi = vnet_get_sw_interface(vnm, sdev->vlib_sw_if_index);
shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
/* Set l3 packet size allowed as the lowest of slave */
if (bhi->max_l3_packet_bytes[VLIB_RX] >
shi->max_l3_packet_bytes[VLIB_RX])
bhi->max_l3_packet_bytes[VLIB_RX] =
bhi->max_l3_packet_bytes[VLIB_TX] =
shi->max_l3_packet_bytes[VLIB_RX];
}
}
}
}
}
}
while (1)
{
/*
* check each time through the loop in case intervals are changed
*/
f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
dm->link_state_poll_interval : dm->stat_poll_interval;
vlib_process_wait_for_event_or_clock (vm, min_wait);
if (dpdk_get_admin_up_down_in_progress())
/* skip the poll if an admin up down is in progress (on any interface) */
continue;
vec_foreach (xd, dm->devices)
{
f64 now = vlib_time_now (vm);
if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
dpdk_update_counters (xd, now);
if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
dpdk_update_link_state (xd, now);
if (xd->dev_type == VNET_DPDK_DEV_VHOST_USER)
if (dpdk_vhost_user_process_if(vm, xd, vu_state) != 0)
continue;
}
}
dpdk_vhost_user_process_cleanup(vu_state);
return 0;
}
VLIB_REGISTER_NODE (dpdk_process_node,static) = {
.function = dpdk_process,
.type = VLIB_NODE_TYPE_PROCESS,
.name = "dpdk-process",
.process_log2_n_stack_bytes = 17,
};
int dpdk_set_stat_poll_interval (f64 interval)
{
if (interval < DPDK_MIN_STATS_POLL_INTERVAL)
return (VNET_API_ERROR_INVALID_VALUE);
dpdk_main.stat_poll_interval = interval;
return 0;
}
int dpdk_set_link_state_poll_interval (f64 interval)
{
if (interval < DPDK_MIN_LINK_POLL_INTERVAL)
return (VNET_API_ERROR_INVALID_VALUE);
dpdk_main.link_state_poll_interval = interval;
return 0;
}
clib_error_t *
dpdk_init (vlib_main_t * vm)
{
dpdk_main_t * dm = &dpdk_main;
vlib_node_t * ei;
clib_error_t * error = 0;
vlib_thread_main_t * tm = vlib_get_thread_main();
/* verify that structs are cacheline aligned */
ASSERT(offsetof(dpdk_device_t, cacheline0) == 0);
ASSERT(offsetof(dpdk_device_t, cacheline1) == CLIB_CACHE_LINE_BYTES);
ASSERT(offsetof(dpdk_worker_t, cacheline0) == 0);
ASSERT(offsetof(frame_queue_trace_t, cacheline0) == 0);
dm->vlib_main = vm;
dm->vnet_main = vnet_get_main();
dm->conf = &dpdk_config_main;
ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
if (ei == 0)
return clib_error_return (0, "ethernet-input node AWOL");
dm->ethernet_input_node_index = ei->index;
dm->conf->nchannels = 4;
dm->conf->num_mbufs = dm->conf->num_mbufs ? dm->conf->num_mbufs : NB_MBUF;
vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
dm->dpdk_device_by_kni_port_id = hash_create (0, sizeof (uword));
dm->vu_sw_if_index_by_listener_fd = hash_create (0, sizeof (uword));
dm->vu_sw_if_index_by_sock_fd = hash_create (0, sizeof (uword));
/* $$$ use n_thread_stacks since it's known-good at this point */
vec_validate (dm->recycle, tm->n_thread_stacks - 1);
/* initialize EFD (early fast discard) default settings */
dm->efd.enabled = DPDK_EFD_DISABLED;
dm->efd.queue_hi_thresh = ((DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT *
DPDK_NB_RX_DESC_10GE)/100);
dm->efd.consec_full_frames_hi_thresh =
DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH;
/* vhost-user coalescence frames defaults */
dm->conf->vhost_coalesce_frames = 32;
dm->conf->vhost_coalesce_time = 1e-3;
/* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
dm->buffer_flags_template =
(VLIB_BUFFER_TOTAL_LENGTH_VALID
| IP_BUFFER_L4_CHECKSUM_COMPUTED
| IP_BUFFER_L4_CHECKSUM_CORRECT);
dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
/* init CLI */
if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
return error;
return error;
}
VLIB_INIT_FUNCTION (dpdk_init);