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gerrit.nordix.org / fdio / vpp / a173a7a07beef2e7b4f88367061923407a9b63ad / . / src / plugins / dpdk / device / init.c
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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/error.h>
#include <vppinfra/format.h>
#include <vppinfra/bitmap.h>
#include <vppinfra/linux/sysfs.h>
#include <vlib/unix/unix.h>
#include <vlib/log.h>
#include <vnet/ethernet/ethernet.h>
#include <dpdk/device/dpdk.h>
#include <vlib/pci/pci.h>
#include <rte_ring.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/device/dpdk_priv.h>
#define ETHER_MAX_LEN 1518 /**< Maximum frame len, including CRC. */
dpdk_main_t dpdk_main;
dpdk_config_main_t dpdk_config_main;
#define LINK_STATE_ELOGS 0
/* Port configuration, mildly modified Intel app values */
static dpdk_port_type_t
port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
{
if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
return VNET_DPDK_PORT_TYPE_ETH_100G;
else if (dev_info->speed_capa & ETH_LINK_SPEED_56G)
return VNET_DPDK_PORT_TYPE_ETH_56G;
else if (dev_info->speed_capa & ETH_LINK_SPEED_50G)
return VNET_DPDK_PORT_TYPE_ETH_50G;
else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
return VNET_DPDK_PORT_TYPE_ETH_40G;
else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
return VNET_DPDK_PORT_TYPE_ETH_25G;
else if (dev_info->speed_capa & ETH_LINK_SPEED_20G)
return VNET_DPDK_PORT_TYPE_ETH_20G;
else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
return VNET_DPDK_PORT_TYPE_ETH_10G;
else if (dev_info->speed_capa & ETH_LINK_SPEED_5G)
return VNET_DPDK_PORT_TYPE_ETH_5G;
else if (dev_info->speed_capa & ETH_LINK_SPEED_2_5G)
return VNET_DPDK_PORT_TYPE_ETH_2_5G;
else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
return VNET_DPDK_PORT_TYPE_ETH_1G;
return VNET_DPDK_PORT_TYPE_UNKNOWN;
}
static dpdk_port_type_t
port_type_from_link_speed (u32 link_speed)
{
switch (link_speed)
{
case ETH_SPEED_NUM_1G:
return VNET_DPDK_PORT_TYPE_ETH_1G;
case ETH_SPEED_NUM_2_5G:
return VNET_DPDK_PORT_TYPE_ETH_2_5G;
case ETH_SPEED_NUM_5G:
return VNET_DPDK_PORT_TYPE_ETH_5G;
case ETH_SPEED_NUM_10G:
return VNET_DPDK_PORT_TYPE_ETH_10G;
case ETH_SPEED_NUM_20G:
return VNET_DPDK_PORT_TYPE_ETH_20G;
case ETH_SPEED_NUM_25G:
return VNET_DPDK_PORT_TYPE_ETH_25G;
case ETH_SPEED_NUM_40G:
return VNET_DPDK_PORT_TYPE_ETH_40G;
case ETH_SPEED_NUM_50G:
return VNET_DPDK_PORT_TYPE_ETH_50G;
case ETH_SPEED_NUM_56G:
return VNET_DPDK_PORT_TYPE_ETH_56G;
case ETH_SPEED_NUM_100G:
return VNET_DPDK_PORT_TYPE_ETH_100G;
default:
return VNET_DPDK_PORT_TYPE_UNKNOWN;
}
}
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->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
if (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
else
xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
{
if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
rte_eth_promiscuous_enable (xd->port_id);
else
rte_eth_promiscuous_disable (xd->port_id);
}
}
else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
{
xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
dpdk_device_setup (xd);
}
return old;
}
static 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);
clib_memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
}
}
static struct rte_mempool_ops *
get_ops_by_name (char *ops_name)
{
u32 i;
for (i = 0; i < rte_mempool_ops_table.num_ops; i++)
{
if (!strcmp (ops_name, rte_mempool_ops_table.ops[i].name))
return &rte_mempool_ops_table.ops[i];
}
return 0;
}
static int
dpdk_ring_alloc (struct rte_mempool *mp)
{
u32 rg_flags = 0, count;
i32 ret;
char rg_name[RTE_RING_NAMESIZE];
struct rte_ring *r;
ret = snprintf (rg_name, sizeof (rg_name), RTE_MEMPOOL_MZ_FORMAT, mp->name);
if (ret < 0 || ret >= (i32) sizeof (rg_name))
return -ENAMETOOLONG;
/* ring flags */
if (mp->flags & MEMPOOL_F_SP_PUT)
rg_flags |= RING_F_SP_ENQ;
if (mp->flags & MEMPOOL_F_SC_GET)
rg_flags |= RING_F_SC_DEQ;
count = rte_align32pow2 (mp->size + 1);
/*
* Allocate the ring that will be used to store objects.
* Ring functions will return appropriate errors if we are
* running as a secondary process etc., so no checks made
* in this function for that condition.
*/
/* XXX can we get memory from the right socket? */
r = clib_mem_alloc_aligned (rte_ring_get_memsize (count),
CLIB_CACHE_LINE_BYTES);
/* XXX rte_ring_lookup will not work */
ret = rte_ring_init (r, rg_name, count, rg_flags);
if (ret)
return ret;
mp->pool_data = r;
return 0;
}
static int
dpdk_port_crc_strip_enabled (dpdk_device_t * xd)
{
#if RTE_VERSION < RTE_VERSION_NUM(18, 8, 0, 0)
return ! !(xd->port_conf.rxmode.hw_strip_crc);
#elif RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
return ! !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_CRC_STRIP);
#else
return !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC);
#endif
}
static clib_error_t *
dpdk_lib_init (dpdk_main_t * dm)
{
u32 nports;
u32 mtu, max_rx_frame;
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_device_main_t *vdm = &vnet_device_main;
vnet_sw_interface_t *sw;
vnet_hw_interface_t *hi;
dpdk_device_t *xd;
vlib_pci_addr_t last_pci_addr;
u32 last_pci_addr_port = 0;
vlib_thread_registration_t *tr_hqos;
uword *p_hqos;
u32 next_hqos_cpu = 0;
u8 af_packet_instance_num = 0;
u8 bond_ether_instance_num = 0;
last_pci_addr.as_u32 = ~0;
dm->hqos_cpu_first_index = 0;
dm->hqos_cpu_count = 0;
/* find out which cpus will be used for I/O TX */
p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
if (tr_hqos && tr_hqos->count > 0)
{
dm->hqos_cpu_first_index = tr_hqos->first_index;
dm->hqos_cpu_count = tr_hqos->count;
}
vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
CLIB_CACHE_LINE_BYTES);
nports = rte_eth_dev_count_avail ();
if (nports < 1)
{
dpdk_log_notice ("DPDK drivers found no ports...");
}
if (CLIB_DEBUG > 0)
dpdk_log_notice ("DPDK drivers found %d ports...", nports);
if (dm->conf->enable_tcp_udp_checksum)
dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
| VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
/* vlib_buffer_t template */
vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
CLIB_CACHE_LINE_BYTES);
for (i = 0; i < tm->n_vlib_mains; i++)
{
vlib_buffer_free_list_t *fl;
dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
fl = vlib_buffer_get_free_list (vm,
VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
vlib_buffer_init_for_free_list (&ptd->buffer_template, fl);
ptd->buffer_template.flags = dm->buffer_flags_template;
vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
}
/* *INDENT-OFF* */
RTE_ETH_FOREACH_DEV(i)
{
u8 addr[6];
u8 vlan_strip = 0;
struct rte_eth_dev_info dev_info;
struct rte_pci_device *pci_dev;
struct rte_eth_link l;
dpdk_device_config_t *devconf = 0;
vlib_pci_addr_t pci_addr;
uword *p = 0;
if (!rte_eth_dev_is_valid_port(i))
continue;
rte_eth_link_get_nowait (i, &l);
rte_eth_dev_info_get (i, &dev_info);
if (dev_info.device == 0)
{
clib_warning ("DPDK bug: missing device info. Skipping %s device",
dev_info.driver_name);
continue;
}
pci_dev = dpdk_get_pci_device (&dev_info);
if (pci_dev) /* bonded interface has no pci info */
{
pci_addr.domain = pci_dev->addr.domain;
pci_addr.bus = pci_dev->addr.bus;
pci_addr.slot = pci_dev->addr.devid;
pci_addr.function = pci_dev->addr.function;
p = hash_get (dm->conf->device_config_index_by_pci_addr,
pci_addr.as_u32);
}
/* 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);
if (p)
{
devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
xd->name = devconf->name;
}
else
devconf = &dm->conf->default_devconf;
/* Handle interface naming for devices with multiple ports sharing same PCI ID */
if (pci_dev)
{
struct rte_eth_dev_info di = { 0 };
struct rte_pci_device *next_pci_dev;
rte_eth_dev_info_get (i + 1, &di);
next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
if (pci_dev && next_pci_dev &&
pci_addr.as_u32 != last_pci_addr.as_u32 &&
memcmp (&pci_dev->addr, &next_pci_dev->addr,
sizeof (struct rte_pci_addr)) == 0)
{
xd->interface_name_suffix = format (0, "0");
last_pci_addr.as_u32 = pci_addr.as_u32;
last_pci_addr_port = i;
}
else if (pci_addr.as_u32 == last_pci_addr.as_u32)
{
xd->interface_name_suffix =
format (0, "%u", i - last_pci_addr_port);
}
else
{
last_pci_addr.as_u32 = ~0;
}
}
else
last_pci_addr.as_u32 = ~0;
clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
sizeof (struct rte_eth_txconf));
if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
{
xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
}
if (dm->conf->no_multi_seg)
{
#if RTE_VERSION < RTE_VERSION_NUM(18, 8, 0, 0)
xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
xd->port_conf.rxmode.jumbo_frame = 0;
xd->port_conf.rxmode.enable_scatter = 0;
#else
xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
#endif
}
else
{
#if RTE_VERSION < RTE_VERSION_NUM(18, 8, 0, 0)
xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
xd->port_conf.rxmode.jumbo_frame = 1;
xd->port_conf.rxmode.enable_scatter = 1;
#else
xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
#endif
xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
}
xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
if (devconf->num_tx_queues > 0
&& devconf->num_tx_queues < xd->tx_q_used)
xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
if (devconf->num_rx_queues > 1
&& dev_info.max_rx_queues >= devconf->num_rx_queues)
{
xd->rx_q_used = devconf->num_rx_queues;
xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
if (devconf->rss_fn == 0)
xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
else
{
u64 unsupported_bits;
xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
unsupported_bits &= ~dev_info.flow_type_rss_offloads;
if (unsupported_bits)
dpdk_log_warn ("Unsupported RSS hash functions: %U",
format_dpdk_rss_hf_name, unsupported_bits);
}
xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
dev_info.flow_type_rss_offloads;
}
else
xd->rx_q_used = 1;
xd->flags |= DPDK_DEVICE_FLAG_PMD;
/* workaround for drivers not setting driver_name */
if ((!dev_info.driver_name) && (pci_dev))
dev_info.driver_name = pci_dev->driver->driver.name;
ASSERT (dev_info.driver_name);
if (!xd->pmd)
{
#define _(s,f) else if (dev_info.driver_name && \
!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;
xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
switch (xd->pmd)
{
/* Drivers with valid speed_capa set */
case VNET_DPDK_PMD_E1000EM:
case VNET_DPDK_PMD_IGB:
case VNET_DPDK_PMD_IXGBE:
case VNET_DPDK_PMD_I40E:
xd->port_type = port_type_from_speed_capa (&dev_info);
xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
VNET_FLOW_ACTION_REDIRECT_TO_NODE |
VNET_FLOW_ACTION_BUFFER_ADVANCE |
VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
if (dm->conf->no_tx_checksum_offload == 0)
{
#if RTE_VERSION < RTE_VERSION_NUM(18, 8, 0, 0)
xd->tx_conf.txq_flags &= ~(ETH_TXQ_FLAGS_NOXSUMUDP |
ETH_TXQ_FLAGS_NOXSUMTCP);
#else
xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
#endif
xd->flags |=
DPDK_DEVICE_FLAG_TX_OFFLOAD |
DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
}
break;
case VNET_DPDK_PMD_CXGBE:
case VNET_DPDK_PMD_MLX4:
case VNET_DPDK_PMD_MLX5:
case VNET_DPDK_PMD_QEDE:
xd->port_type = port_type_from_speed_capa (&dev_info);
break;
/* SR-IOV VFs */
case VNET_DPDK_PMD_IGBVF:
case VNET_DPDK_PMD_IXGBEVF:
case VNET_DPDK_PMD_I40EVF:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
#if RTE_VERSION < RTE_VERSION_NUM(18, 8, 0, 0)
xd->port_conf.rxmode.hw_strip_crc = 1;
#elif RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CRC_STRIP;
#endif
break;
case VNET_DPDK_PMD_THUNDERX:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
#if RTE_VERSION < RTE_VERSION_NUM(18, 8, 0, 0)
xd->port_conf.rxmode.hw_strip_crc = 1;
#elif RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CRC_STRIP;
#endif
if (dm->conf->no_tx_checksum_offload == 0)
{
#if RTE_VERSION < RTE_VERSION_NUM(18, 8, 0, 0)
xd->tx_conf.txq_flags &= ~(ETH_TXQ_FLAGS_NOXSUMUDP |
ETH_TXQ_FLAGS_NOXSUMTCP);
#else
xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
#endif
xd->flags |=
DPDK_DEVICE_FLAG_TX_OFFLOAD;
}
break;
case VNET_DPDK_PMD_ENA:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
#if RTE_VERSION < RTE_VERSION_NUM(18, 8, 0, 0)
xd->port_conf.rxmode.enable_scatter = 0;
#else
xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
#endif
break;
case VNET_DPDK_PMD_DPAA2:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
break;
/* Cisco VIC */
case VNET_DPDK_PMD_ENIC:
if (l.link_speed == 40000)
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
else
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
break;
/* Intel Red Rock Canyon */
case VNET_DPDK_PMD_FM10K:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
#if RTE_VERSION < RTE_VERSION_NUM(18, 8, 0, 0)
xd->port_conf.rxmode.hw_strip_crc = 1;
#elif RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CRC_STRIP;
#endif
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;
#if RTE_VERSION < RTE_VERSION_NUM(18, 8, 0, 0)
xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
#else
xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
#endif
break;
case VNET_DPDK_PMD_AF_PACKET:
xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
xd->af_packet_instance_num = af_packet_instance_num++;
break;
case VNET_DPDK_PMD_BOND:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
xd->bond_instance_num = bond_ether_instance_num++;
break;
case VNET_DPDK_PMD_VIRTIO_USER:
xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
break;
case VNET_DPDK_PMD_VHOST_ETHER:
xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
break;
case VNET_DPDK_PMD_LIOVF_ETHER:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
break;
case VNET_DPDK_PMD_FAILSAFE:
xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
xd->port_conf.intr_conf.lsc = 1;
break;
case VNET_DPDK_PMD_NETVSC:
xd->port_type = port_type_from_link_speed (l.link_speed);
break;
default:
xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
}
if (devconf->num_rx_desc)
xd->nb_rx_desc = devconf->num_rx_desc;
if (devconf->num_tx_desc)
xd->nb_tx_desc = devconf->num_tx_desc;
}
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->port_id = i;
xd->device_index = xd - dm->devices;
xd->per_interface_next_index = ~0;
/* assign interface to input thread */
int q;
if (devconf->hqos_enabled)
{
xd->flags |= DPDK_DEVICE_FLAG_HQOS;
int cpu;
if (devconf->hqos.hqos_thread_valid)
{
if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
return clib_error_return (0, "invalid HQoS thread index");
cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
}
else
{
if (dm->hqos_cpu_count == 0)
return clib_error_return (0, "no HQoS threads available");
cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
next_hqos_cpu++;
if (next_hqos_cpu == dm->hqos_cpu_count)
next_hqos_cpu = 0;
devconf->hqos.hqos_thread_valid = 1;
devconf->hqos.hqos_thread = cpu;
}
dpdk_device_and_queue_t *dq;
vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
dq->device = xd->device_index;
dq->queue_id = 0;
}
/* 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->hw_if_index, dpdk_flag_change);
if (error)
return error;
/*
* 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.
* Calculate max_frame_size and mtu supported by NIC
*/
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.
*/
max_rx_frame = dev_info.max_rx_pktlen;
mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
}
else
{
/* VPP treats MTU and max_rx_pktlen both equal to
* ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
* ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
*/
if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
sizeof (ethernet_header_t)))
{
mtu = ETHERNET_MAX_PACKET_BYTES;
max_rx_frame = 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 (dpdk_port_crc_strip_enabled (xd) &&
(dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
sizeof (ethernet_header_t) +
4)))
{
max_rx_frame += 4;
}
}
else
{
max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
if (dpdk_port_crc_strip_enabled (xd) &&
(dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
{
max_rx_frame += 4;
}
}
}
if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
{
/* failsafe device numerables are reported with active device only,
* need to query the mtu for current device setup to overwrite
* reported value.
*/
uint16_t dev_mtu;
if (!rte_eth_dev_get_mtu (i, &dev_mtu))
{
mtu = dev_mtu;
max_rx_frame = mtu + sizeof (ethernet_header_t);
if (dpdk_port_crc_strip_enabled (xd))
{
max_rx_frame += 4;
}
}
}
/*Set port rxmode config */
xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
xd->sw_if_index = sw->sw_if_index;
vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
dpdk_input_node.index);
if (devconf->workers)
{
int i;
q = 0;
clib_bitmap_foreach (i, devconf->workers, ({
vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
vdm->first_worker_thread_index + i);
}));
}
else
for (q = 0; q < xd->rx_q_used; q++)
{
vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
~1);
}
/*Get vnet hardware interface */
hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
/*Override default max_packet_bytes and max_supported_bytes set in
* ethernet_register_interface() above*/
if (hi)
{
hi->max_packet_bytes = mtu;
hi->max_supported_packet_bytes = max_rx_frame;
}
if (dm->conf->no_tx_checksum_offload == 0)
if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
dpdk_device_setup (xd);
if (vec_len (xd->errors))
dpdk_log_err ("setup failed for device %U. Errors:\n %U",
format_dpdk_device_name, i,
format_dpdk_device_errors, xd);
if (devconf->hqos_enabled)
{
clib_error_t *rv;
rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
if (rv)
return rv;
}
/*
* For cisco VIC vNIC, set default to VLAN strip enabled, unless
* specified otherwise in the startup config.
* For other NICs default to VLAN strip disabled, unless specified
* otherwise in the startup config.
*/
if (xd->pmd == VNET_DPDK_PMD_ENIC)
{
if (devconf->vlan_strip_offload != DPDK_DEVICE_VLAN_STRIP_OFF)
vlan_strip = 1; /* remove vlan tag from VIC port by default */
else
dpdk_log_warn ("VLAN strip disabled for interface\n");
}
else if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
vlan_strip = 1;
if (vlan_strip)
{
int vlan_off;
vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
#if RTE_VERSION < RTE_VERSION_NUM(18, 8, 0, 0)
xd->port_conf.rxmode.hw_vlan_strip = vlan_off;
#else
if (vlan_off)
xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
else
xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
#endif
if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) == 0)
dpdk_log_info ("VLAN strip enabled for interface\n");
else
dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
}
if (hi)
hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
- sizeof (ethernet_header_t);
else
clib_warning ("hi NULL");
if (dm->conf->no_multi_seg)
mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
rte_eth_dev_set_mtu (xd->port_id, mtu);
}
/* *INDENT-ON* */
if (nb_desc > dm->conf->num_mbufs)
dpdk_log_err ("%d mbufs allocated but total rx/tx ring size is %d\n",
dm->conf->num_mbufs, nb_desc);
return 0;
}
static void
dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
{
vlib_main_t *vm = vlib_get_main ();
clib_error_t *error;
u8 *pci_addr = 0;
int num_whitelisted = vec_len (conf->dev_confs);
vlib_pci_device_info_t *d = 0;
vlib_pci_addr_t *addr = 0, *addrs;
addrs = vlib_pci_get_all_dev_addrs ();
/* *INDENT-OFF* */
vec_foreach (addr, addrs)
{
dpdk_device_config_t * devconf = 0;
vec_reset_length (pci_addr);
pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
if (d)
{
vlib_pci_free_device_info (d);
d = 0;
}
d = vlib_pci_get_device_info (vm, addr, &error);
if (error)
{
clib_error_report (error);
continue;
}
if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
continue;
if (num_whitelisted)
{
uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
if (!p)
continue;
devconf = pool_elt_at_index (conf->dev_confs, p[0]);
}
/* virtio */
if (d->vendor_id == 0x1af4 &&
(d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
;
/* vmxnet3 */
else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
{
/*
* For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
* the default is to put it in the blacklist.
*/
if (devconf == 0)
{
pool_get (conf->dev_confs, devconf);
hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
devconf - conf->dev_confs);
devconf->pci_addr.as_u32 = addr->as_u32;
devconf->is_blacklisted = 1;
}
}
/* all Intel network devices */
else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
;
/* all Intel QAT devices VFs */
else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
(d->device_id == 0x0443 || d->device_id == 0x37c9 || d->device_id == 0x19e3))
;
/* Cisco VIC */
else if (d->vendor_id == 0x1137 && d->device_id == 0x0043)
;
/* Chelsio T4/T5 */
else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
;
/* Amazen Elastic Network Adapter */
else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
;
/* Cavium Network Adapter */
else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
;
/* Cavium FastlinQ QL41000 Series */
else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
;
/* Mellanox mlx4 */
else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
{
continue;
}
/* Mellanox mlx5 */
else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
{
continue;
}
else
{
dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
"at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
pci_addr);
continue;
}
error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
if (error)
{
if (devconf == 0)
{
pool_get (conf->dev_confs, devconf);
hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
devconf - conf->dev_confs);
devconf->pci_addr.as_u32 = addr->as_u32;
}
devconf->is_blacklisted = 1;
clib_error_report (error);
}
}
/* *INDENT-ON* */
vec_free (pci_addr);
vlib_pci_free_device_info (d);
}
static clib_error_t *
dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
unformat_input_t * input, u8 is_default)
{
clib_error_t *error = 0;
uword *p;
dpdk_device_config_t *devconf;
unformat_input_t sub_input;
if (is_default)
{
devconf = &conf->default_devconf;
}
else
{
p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
if (!p)
{
pool_get (conf->dev_confs, devconf);
hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
devconf - conf->dev_confs);
}
else
return clib_error_return (0,
"duplicate configuration for PCI address %U",
format_vlib_pci_addr, &pci_addr);
}
devconf->pci_addr.as_u32 = pci_addr.as_u32;
devconf->hqos_enabled = 0;
dpdk_device_config_hqos_default (&devconf->hqos);
if (!input)
return 0;
unformat_skip_white_space (input);
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
;
else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
;
else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
;
else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
;
else if (unformat (input, "name %s", &devconf->name))
;
else if (unformat (input, "workers %U", unformat_bitmap_list,
&devconf->workers))
;
else
if (unformat
(input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
{
error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
if (error)
break;
}
else if (unformat (input, "vlan-strip-offload off"))
devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
else if (unformat (input, "vlan-strip-offload on"))
devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
else
if (unformat
(input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
{
devconf->hqos_enabled = 1;
error = unformat_hqos (&sub_input, &devconf->hqos);
if (error)
break;
}
else if (unformat (input, "hqos"))
{
devconf->hqos_enabled = 1;
}
else
{
error = clib_error_return (0, "unknown input `%U'",
format_unformat_error, input);
break;
}
}
if (error)
return error;
if (devconf->workers && devconf->num_rx_queues == 0)
devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
else if (devconf->workers &&
clib_bitmap_count_set_bits (devconf->workers) !=
devconf->num_rx_queues)
error =
clib_error_return (0,
"%U: number of worker threads must be "
"equal to number of rx queues", format_vlib_pci_addr,
&pci_addr);
return error;
}
static clib_error_t *
dpdk_log_read_ready (clib_file_t * uf)
{
unformat_input_t input;
u8 *line, *s = 0;
int n, n_try;
n = n_try = 4096;
while (n == n_try)
{
uword len = vec_len (s);
vec_resize (s, len + n_try);
n = read (uf->file_descriptor, s + len, n_try);
if (n < 0 && errno != EAGAIN)
return clib_error_return_unix (0, "read");
_vec_len (s) = len + (n < 0 ? 0 : n);
}
unformat_init_vector (&input, s);
while (unformat_user (&input, unformat_line, &line))
{
dpdk_log_notice ("%v", line);
vec_free (line);
}
unformat_free (&input);
return 0;
}
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 ();
dpdk_device_config_t *devconf;
vlib_pci_addr_t pci_addr;
unformat_input_t sub_input;
uword x;
u8 *s, *tmp = 0;
u32 log_level;
int ret, i;
int num_whitelisted = 0;
u8 no_pci = 0;
u8 no_huge = 0;
u8 huge_dir = 0;
u8 file_prefix = 0;
u8 *socket_mem = 0;
u8 *huge_dir_path = 0;
huge_dir_path =
format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
log_level = RTE_LOG_NOTICE;
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, "no-tx-checksum-offload"))
conf->no_tx_checksum_offload = 1;
else if (unformat (input, "decimal-interface-names"))
conf->interface_name_format_decimal = 1;
else if (unformat (input, "log-level %U", unformat_dpdk_log_level, &x))
log_level = x;
else if (unformat (input, "no-multi-seg"))
conf->no_multi_seg = 1;
else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
&sub_input))
{
error =
dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1);
if (error)
return error;
}
else
if (unformat
(input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
unformat_vlib_cli_sub_input, &sub_input))
{
error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
if (error)
return error;
num_whitelisted++;
}
else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
{
error = dpdk_device_config (conf, pci_addr, 0, 0);
if (error)
return error;
num_whitelisted++;
}
else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
conf->nchannels_set_manually = 0;
else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
;
else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
;
else if (unformat (input, "socket-mem %s", &socket_mem))
;
else if (unformat (input, "no-pci"))
{
no_pci = 1;
tmp = format (0, "--no-pci%c", 0);
vec_add1 (conf->eal_init_args, tmp);
}
#define _(a) \
else if (unformat(input, #a)) \
{ \
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); \
if (!strncmp(#a, "vdev", 4)) \
if (strstr((char*)s, "af_packet")) \
clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
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 if (unformat_skip_white_space (input))
;
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, "auto%c", 0);
/*
* Use 1G huge pages if available.
*/
if (!no_huge && !huge_dir)
{
u32 x, *mem_by_socket = 0;
uword c = 0;
int rv;
umount ((char *) huge_dir_path);
/* 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);
}
/* Note: unformat_free vec_frees(in.buffer), aka socket_mem... */
unformat_free (&in);
socket_mem = 0;
}
else
{
/* *INDENT-OFF* */
clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
{
vec_validate(mem_by_socket, c);
mem_by_socket[c] = 64; /* default per-socket mem */
}
));
/* *INDENT-ON* */
}
uword default_hugepage_sz = clib_mem_get_default_hugepage_size ();
/* *INDENT-OFF* */
clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
{
clib_error_t *e;
uword n_pages;
vec_validate(mem_by_socket, c);
n_pages = round_pow2 ((uword) mem_by_socket[c]<<20,
default_hugepage_sz);
n_pages /= default_hugepage_sz;
if ((e = clib_sysfs_prealloc_hugepages(c, 0, n_pages)))
clib_error_report (e);
}));
/* *INDENT-ON* */
if (mem_by_socket == 0)
{
error = clib_error_return (0, "mem_by_socket NULL");
goto done;
}
_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);
error = vlib_unix_recursive_mkdir ((char *) huge_dir_path);
if (error)
{
goto done;
}
rv = mount ("none", (char *) huge_dir_path, "hugetlbfs", 0, NULL);
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", huge_dir_path, 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);
}
}
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);
#define _(x) \
if (devconf->x == 0 && conf->default_devconf.x > 0) \
devconf->x = conf->default_devconf.x ;
/* *INDENT-OFF* */
pool_foreach (devconf, conf->dev_confs, ({
/* default per-device config items */
foreach_dpdk_device_config_item
/* add DPDK EAL whitelist/blacklist entry */
if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
{
tmp = format (0, "-w%c", 0);
vec_add1 (conf->eal_init_args, tmp);
tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
vec_add1 (conf->eal_init_args, tmp);
}
else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
{
tmp = format (0, "-b%c", 0);
vec_add1 (conf->eal_init_args, tmp);
tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
vec_add1 (conf->eal_init_args, tmp);
}
}));
/* *INDENT-ON* */
#undef _
/* 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 */
if (!no_huge)
{
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. */
rte_log_set_global_level (log_level);
int log_fds[2] = { 0 };
if (pipe (log_fds) == 0)
{
if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
{
FILE *f = fdopen (log_fds[1], "a");
if (f && rte_openlog_stream (f) == 0)
{
clib_file_t t = { 0 };
t.read_function = dpdk_log_read_ready;
t.file_descriptor = log_fds[0];
t.description = format (0, "DPDK logging pipe");
clib_file_add (&file_main, &t);
}
}
else
{
close (log_fds[0]);
close (log_fds[1]);
}
}
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]);
dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
ret = rte_eal_init (vec_len (conf->eal_init_args),
(char **) conf->eal_init_args);
/* lazy umount hugepages */
umount2 ((char *) huge_dir_path, MNT_DETACH);
rmdir ((char *) huge_dir_path);
vec_free (huge_dir_path);
if (ret < 0)
return clib_error_return (0, "rte_eal_init returned %d", ret);
/* set custom ring memory allocator */
{
struct rte_mempool_ops *ops = NULL;
ops = get_ops_by_name ("ring_sp_sc");
ops->alloc = dpdk_ring_alloc;
ops = get_ops_by_name ("ring_mp_sc");
ops->alloc = dpdk_ring_alloc;
ops = get_ops_by_name ("ring_sp_mc");
ops->alloc = dpdk_ring_alloc;
ops = get_ops_by_name ("ring_mp_mc");
ops->alloc = dpdk_ring_alloc;
}
/* main thread 1st */
error = dpdk_buffer_pool_create (vm, conf->num_mbufs, rte_socket_id ());
if (error)
return error;
for (i = 0; i < RTE_MAX_LCORE; i++)
{
error = dpdk_buffer_pool_create (vm, conf->num_mbufs,
rte_lcore_to_socket_id (i));
if (error)
return error;
}
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->flags & DPDK_DEVICE_FLAG_PMD) == 0)
return;
xd->time_last_link_update = now ? now : xd->time_last_link_update;
clib_memset (&xd->link, 0, sizeof (xd->link));
rte_eth_link_get_nowait (xd->port_id, &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->sw_if_index;
ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
ed->old_link_state = (u8)
vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
ed->new_link_state = (u8) xd->link.link_status;
}
if ((xd->flags & (DPDK_DEVICE_FLAG_ADMIN_UP | DPDK_DEVICE_FLAG_BOND_SLAVE))
&& ((xd->link.link_status != 0) ^
vnet_hw_interface_is_link_up (vnm, xd->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 (xd->link.link_speed != prev_link.link_speed)
vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
xd->link.link_speed * 1000);
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->sw_if_index;
ed->flags = hw_flags;
}
vnet_hw_interface_set_flags (vnm, xd->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 ();
int i;
int j;
error = dpdk_lib_init (dm);
if (error)
clib_error_report (error);
tm->worker_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_device_setup() but needs to be done again here to take
* effect.
* 2. Set up info and register slave link state change callback handling.
* 3. Set up info for bond interface related CLI support.
*/
int nports = rte_eth_dev_count_avail ();
if (nports > 0)
{
/* *INDENT-OFF* */
RTE_ETH_FOREACH_DEV(i)
{
xd = NULL;
for (j = 0; j < nports; j++)
{
if (dm->devices[j].port_id == i)
{
xd = &dm->devices[j];
}
}
if (xd != NULL && xd->pmd == VNET_DPDK_PMD_BOND)
{
u8 addr[6];
dpdk_portid_t slink[16];
int nlink = rte_eth_bond_slaves_get (i, slink, 16);
if (nlink > 0)
{
vnet_hw_interface_t *bhi;
ethernet_interface_t *bei;
int rv;
/* 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 */
dpdk_log_info ("Set MAC for bond port %d BondEthernet%d",
i, xd->bond_instance_num);
rv = rte_eth_bond_mac_address_set
(i, (struct ether_addr *) addr);
if (rv)
dpdk_log_warn ("Set MAC addr failure rv=%d", rv);
/* Populate MAC of bonded interface in VPP hw tables */
bhi = vnet_get_hw_interface
(vnm, dm->devices[i].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_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
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;
ethernet_interface_t *sei;
/* Add MAC to all slave links except the first one */
if (nlink)
{
dpdk_log_info ("Add MAC for slave port %d",
slave);
rv = rte_eth_dev_mac_addr_add
(slave, (struct ether_addr *) addr, 0);
if (rv)
dpdk_log_warn ("Add MAC addr failure rv=%d",
rv);
}
/* Setup slave link state change callback handling */
rte_eth_dev_callback_register
(slave, RTE_ETH_EVENT_INTR_LSC,
dpdk_port_state_callback, NULL);
dpdk_device_t *sxd = &dm->devices[slave];
sxd->flags |= DPDK_DEVICE_FLAG_BOND_SLAVE;
sxd->bond_port = i;
/* Set slaves bitmap for bonded interface */
bhi->bond_info = clib_bitmap_set
(bhi->bond_info, sdev->hw_if_index, 1);
/* Set MACs and slave link flags on slave interface */
shi = vnet_get_hw_interface (vnm, sdev->hw_if_index);
ssi = vnet_get_sw_interface (vnm, sdev->sw_if_index);
sei = pool_elt_at_index
(em->interfaces, shi->hw_instance);
shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
clib_memcpy (shi->hw_address, addr, 6);
clib_memcpy (sei->address, addr, 6);
/* Set l3 packet size allowed as the lowest of slave */
if (bhi->max_packet_bytes > shi->max_packet_bytes)
bhi->max_packet_bytes = shi->max_packet_bytes;
}
}
}
}
/* *INDENT-ON* */
}
}
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 (dm->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);
}
}
return 0;
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (dpdk_process_node,static) = {
.function = dpdk_process,
.type = VLIB_NODE_TYPE_PROCESS,
.name = "dpdk-process",
.process_log2_n_stack_bytes = 17,
};
/* *INDENT-ON* */
static clib_error_t *
dpdk_init (vlib_main_t * vm)
{
dpdk_main_t *dm = &dpdk_main;
clib_error_t *error = 0;
/* verify that structs are cacheline aligned */
STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
"Cache line marker must be 1st element in dpdk_device_t");
STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
CLIB_CACHE_LINE_BYTES,
"Data in cache line 0 is bigger than cache line size");
STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
"Cache line marker must be 1st element in frame_queue_trace_t");
STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
"DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
dm->vlib_main = vm;
dm->vnet_main = vnet_get_main ();
dm->conf = &dpdk_config_main;
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");
/* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
VLIB_BUFFER_EXT_HDR_VALID |
VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
VNET_BUFFER_F_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;
dm->log_default = vlib_log_register_class ("dpdk", 0);
return error;
}
VLIB_INIT_FUNCTION (dpdk_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/