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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.
*/
#ifndef __included_dpdk_h__
#define __included_dpdk_h__
/* $$$$ We should rename always_inline -> clib_always_inline */
#undef always_inline
#include <rte_config.h>
#include <rte_common.h>
#include <rte_dev.h>
#include <rte_log.h>
#include <rte_memory.h>
#include <rte_memzone.h>
#include <rte_tailq.h>
#include <rte_eal.h>
#include <rte_per_lcore.h>
#include <rte_launch.h>
#include <rte_atomic.h>
#include <rte_cycles.h>
#include <rte_prefetch.h>
#include <rte_lcore.h>
#include <rte_per_lcore.h>
#include <rte_branch_prediction.h>
#include <rte_interrupts.h>
#include <rte_pci.h>
#include <rte_random.h>
#include <rte_debug.h>
#include <rte_ether.h>
#include <rte_ethdev.h>
#include <rte_ring.h>
#include <rte_mempool.h>
#include <rte_mbuf.h>
#ifdef RTE_LIBRTE_KNI
#include <rte_kni.h>
#endif
#include <rte_virtio_net.h>
#include <rte_pci_dev_ids.h>
#include <rte_version.h>
#include <rte_eth_bond.h>
#include <vnet/unix/pcap.h>
#include <vnet/devices/virtio/vhost-user.h>
#if CLIB_DEBUG > 0
#define always_inline static inline
#else
#define always_inline static inline __attribute__ ((__always_inline__))
#endif
#if RTE_VERSION < RTE_VERSION_NUM(16, 7, 0, 0)
#define DPDK_VHOST_USER 1
#else
#define DPDK_VHOST_USER 0
#endif
#include <vlib/pci/pci.h>
#define NB_MBUF (16<<10)
extern vnet_device_class_t dpdk_device_class;
extern vlib_node_registration_t dpdk_input_node;
extern vlib_node_registration_t handoff_dispatch_node;
typedef enum {
VNET_DPDK_DEV_ETH = 1, /* Standard DPDK PMD driver */
VNET_DPDK_DEV_KNI, /* Kernel NIC Interface */
VNET_DPDK_DEV_VHOST_USER,
VNET_DPDK_DEV_UNKNOWN, /* must be last */
} dpdk_device_type_t;
#define foreach_dpdk_pmd \
_ ("rte_nicvf_pmd", THUNDERX) \
_ ("rte_em_pmd", E1000EM) \
_ ("rte_igb_pmd", IGB) \
_ ("rte_igbvf_pmd", IGBVF) \
_ ("rte_ixgbe_pmd", IXGBE) \
_ ("rte_ixgbevf_pmd", IXGBEVF) \
_ ("rte_i40e_pmd", I40E) \
_ ("rte_i40evf_pmd", I40EVF) \
_ ("rte_virtio_pmd", VIRTIO) \
_ ("rte_enic_pmd", ENIC) \
_ ("rte_vmxnet3_pmd", VMXNET3) \
_ ("AF_PACKET PMD", AF_PACKET) \
_ ("rte_bond_pmd", BOND) \
_ ("rte_pmd_fm10k", FM10K) \
_ ("rte_cxgbe_pmd", CXGBE) \
_ ("rte_dpaa2_dpni", DPAA2)
typedef enum {
VNET_DPDK_PMD_NONE,
#define _(s,f) VNET_DPDK_PMD_##f,
foreach_dpdk_pmd
#undef _
VNET_DPDK_PMD_UNKNOWN, /* must be last */
} dpdk_pmd_t;
typedef enum {
VNET_DPDK_PORT_TYPE_ETH_1G,
VNET_DPDK_PORT_TYPE_ETH_10G,
VNET_DPDK_PORT_TYPE_ETH_40G,
VNET_DPDK_PORT_TYPE_ETH_BOND,
VNET_DPDK_PORT_TYPE_ETH_SWITCH,
VNET_DPDK_PORT_TYPE_AF_PACKET,
VNET_DPDK_PORT_TYPE_UNKNOWN,
} dpdk_port_type_t;
typedef struct {
f64 deadline;
vlib_frame_t * frame;
} dpdk_frame_t;
#define DPDK_EFD_MAX_DISCARD_RATE 10
typedef struct {
u16 last_burst_sz;
u16 max_burst_sz;
u32 full_frames_cnt;
u32 consec_full_frames_cnt;
u32 congestion_cnt;
u64 last_poll_time;
u64 max_poll_delay;
u32 discard_cnt;
u32 total_packet_cnt;
} dpdk_efd_agent_t;
#if DPDK_VHOST_USER
typedef struct {
int callfd;
int kickfd;
int errfd;
int enabled;
u32 callfd_idx;
u32 n_since_last_int;
f64 int_deadline;
u64 packets;
u64 bytes;
} dpdk_vu_vring;
typedef struct {
u32 is_up;
u32 unix_fd;
u32 unix_file_index;
u32 client_fd;
char sock_filename[256];
int sock_errno;
u8 sock_is_server;
u8 active;
u64 feature_mask;
u32 num_vrings;
dpdk_vu_vring vrings[VHOST_MAX_QUEUE_PAIRS * 2];
u64 region_addr[VHOST_MEMORY_MAX_NREGIONS];
u32 region_fd[VHOST_MEMORY_MAX_NREGIONS];
u64 region_offset[VHOST_MEMORY_MAX_NREGIONS];
} dpdk_vu_intf_t;
#endif
typedef void (*dpdk_flowcontrol_callback_t) (vlib_main_t *vm,
u32 hw_if_index,
u32 n_packets);
/*
* The header for the tx_vector in dpdk_device_t.
* Head and tail are indexes into the tx_vector and are of type
* u64 so they never overflow.
*/
typedef struct {
u64 tx_head;
u64 tx_tail;
} tx_ring_hdr_t;
typedef struct {
CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
volatile u32 **lockp;
/* Instance ID */
u32 device_index;
u32 vlib_hw_if_index;
u32 vlib_sw_if_index;
/* next node index if we decide to steal the rx graph arc */
u32 per_interface_next_index;
/* dpdk rte_mbuf rx and tx vectors, VLIB_FRAME_SIZE */
struct rte_mbuf *** tx_vectors; /* one per worker thread */
struct rte_mbuf *** rx_vectors;
/* vector of traced contexts, per device */
u32 * d_trace_buffers;
/* number of sub-interfaces */
u16 vlan_subifs;
dpdk_device_type_t dev_type:8;
dpdk_pmd_t pmd:8;
i8 cpu_socket;
u8 admin_up;
u8 promisc;
CLIB_CACHE_LINE_ALIGN_MARK(cacheline1);
u8 * interface_name_suffix;
/* PMD related */
u16 tx_q_used;
u16 rx_q_used;
u16 nb_rx_desc;
u16 nb_tx_desc;
u16 * cpu_socket_id_by_queue;
struct rte_eth_conf port_conf;
struct rte_eth_txconf tx_conf;
/* KNI related */
struct rte_kni *kni;
u8 kni_port_id;
#if DPDK_VHOST_USER
/* vhost-user related */
u32 vu_if_id;
struct virtio_net vu_vhost_dev;
u32 vu_is_running;
dpdk_vu_intf_t *vu_intf;
#endif
/* af_packet */
u8 af_packet_port_id;
struct rte_eth_link link;
f64 time_last_link_update;
struct rte_eth_stats stats;
struct rte_eth_stats last_stats;
struct rte_eth_stats last_cleared_stats;
#if RTE_VERSION >= RTE_VERSION_NUM(16, 7, 0, 0)
struct rte_eth_xstat * xstats;
struct rte_eth_xstat * last_cleared_xstats;
#else
struct rte_eth_xstats * xstats;
struct rte_eth_xstats * last_cleared_xstats;
#endif
f64 time_last_stats_update;
dpdk_port_type_t port_type;
dpdk_efd_agent_t efd_agent;
u8 need_txlock; /* Used by VNET_DPDK_DEV_VHOST_USER */
} dpdk_device_t;
#define DPDK_TX_RING_SIZE (4 * 1024)
#define DPDK_STATS_POLL_INTERVAL (10.0)
#define DPDK_MIN_STATS_POLL_INTERVAL (0.001) /* 1msec */
#define DPDK_LINK_POLL_INTERVAL (3.0)
#define DPDK_MIN_LINK_POLL_INTERVAL (0.001) /* 1msec */
typedef struct {
CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
/* total input packet counter */
u64 aggregate_rx_packets;
} dpdk_worker_t;
typedef struct {
u32 device;
u16 queue_id;
} dpdk_device_and_queue_t;
/* Early-Fast-Discard (EFD) */
#define DPDK_EFD_DISABLED 0
#define DPDK_EFD_DISCARD_ENABLED (1 << 0)
#define DPDK_EFD_MONITOR_ENABLED (1 << 1)
#define DPDK_EFD_DROPALL_ENABLED (1 << 2)
#define DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT 90
#define DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH 6
typedef struct dpdk_efd_t {
u16 enabled;
u16 queue_hi_thresh;
u16 consec_full_frames_hi_thresh;
u16 pad;
} dpdk_efd_t;
#define foreach_dpdk_device_config_item \
_ (num_rx_queues) \
_ (num_tx_queues) \
_ (num_rx_desc) \
_ (num_tx_desc) \
_ (rss_fn)
typedef struct {
vlib_pci_addr_t pci_addr;
u8 is_blacklisted;
u8 vlan_strip_offload;
#define DPDK_DEVICE_VLAN_STRIP_DEFAULT 0
#define DPDK_DEVICE_VLAN_STRIP_OFF 1
#define DPDK_DEVICE_VLAN_STRIP_ON 2
#define _(x) uword x;
foreach_dpdk_device_config_item
#undef _
clib_bitmap_t * workers;
} dpdk_device_config_t;
typedef struct {
/* Config stuff */
u8 ** eal_init_args;
u8 * eal_init_args_str;
u8 * uio_driver_name;
u8 no_multi_seg;
u8 enable_tcp_udp_checksum;
/* Required config parameters */
u8 coremask_set_manually;
u8 nchannels_set_manually;
u32 coremask;
u32 nchannels;
u32 num_mbufs;
u8 num_kni;/* while kni_init allows u32, port_id in callback fn is only u8 */
/*
* format interface names ala xxxEthernet%d/%d/%d instead of
* xxxEthernet%x/%x/%x.
*/
u8 interface_name_format_decimal;
/* virtio vhost-user switch */
u8 use_virtio_vhost;
/* vhost-user coalescence frames config */
u32 vhost_coalesce_frames;
f64 vhost_coalesce_time;
/* per-device config */
dpdk_device_config_t default_devconf;
dpdk_device_config_t * dev_confs;
uword * device_config_index_by_pci_addr;
} dpdk_config_main_t;
dpdk_config_main_t dpdk_config_main;
typedef struct {
/* Devices */
dpdk_device_t * devices;
dpdk_device_and_queue_t ** devices_by_cpu;
/* per-thread recycle lists */
u32 ** recycle;
/* buffer flags template, configurable to enable/disable tcp / udp cksum */
u32 buffer_flags_template;
/* flow control callback. If 0 then flow control is disabled */
dpdk_flowcontrol_callback_t flowcontrol_callback;
/* vlib buffer free list, must be same size as an rte_mbuf */
u32 vlib_buffer_free_list_index;
/* dpdk worker "threads" */
dpdk_worker_t * workers;
/* Ethernet input node index */
u32 ethernet_input_node_index;
/* pcap tracing [only works if (CLIB_DEBUG > 0)] */
int tx_pcap_enable;
pcap_main_t pcap_main;
u8 * pcap_filename;
u32 pcap_sw_if_index;
u32 pcap_pkts_to_capture;
/* hashes */
uword * dpdk_device_by_kni_port_id;
uword * vu_sw_if_index_by_listener_fd;
uword * vu_sw_if_index_by_sock_fd;
u32 * vu_inactive_interfaces_device_index;
u32 next_vu_if_id;
/* efd (early-fast-discard) settings */
dpdk_efd_t efd;
/*
* flag indicating that a posted admin up/down
* (via post_sw_interface_set_flags) is in progress
*/
u8 admin_up_down_in_progress;
u8 use_rss;
/* which cpus are running dpdk-input */
int input_cpu_first_index;
int input_cpu_count;
/* control interval of dpdk link state and stat polling */
f64 link_state_poll_interval;
f64 stat_poll_interval;
/* Sleep for this many MS after each device poll */
u32 poll_sleep;
/* convenience */
vlib_main_t * vlib_main;
vnet_main_t * vnet_main;
dpdk_config_main_t * conf;
} dpdk_main_t;
dpdk_main_t dpdk_main;
typedef enum {
DPDK_RX_NEXT_IP4_INPUT,
DPDK_RX_NEXT_IP6_INPUT,
DPDK_RX_NEXT_MPLS_INPUT,
DPDK_RX_NEXT_ETHERNET_INPUT,
DPDK_RX_NEXT_DROP,
DPDK_RX_N_NEXT,
} dpdk_rx_next_t;
typedef struct {
u32 buffer_index;
u16 device_index;
u8 queue_index;
struct rte_mbuf mb;
/* Copy of VLIB buffer; packet data stored in pre_data. */
vlib_buffer_t buffer;
} dpdk_tx_dma_trace_t;
typedef struct {
u32 buffer_index;
u16 device_index;
u16 queue_index;
struct rte_mbuf mb;
vlib_buffer_t buffer; /* Copy of VLIB buffer; pkt data stored in pre_data. */
u8 data[256]; /* First 256 data bytes, used for hexdump */
} dpdk_rx_dma_trace_t;
void vnet_buffer_needs_dpdk_mb (vlib_buffer_t * b);
void dpdk_set_next_node (dpdk_rx_next_t, char *);
clib_error_t * dpdk_set_mac_address (vnet_hw_interface_t * hi, char * address);
clib_error_t * dpdk_set_mc_filter (vnet_hw_interface_t * hi,
struct ether_addr mc_addr_vec[], int naddr);
void dpdk_thread_input (dpdk_main_t * dm, dpdk_device_t * xd);
clib_error_t * dpdk_port_setup (dpdk_main_t * dm, dpdk_device_t * xd);
void dpdk_set_flowcontrol_callback (vlib_main_t *vm,
dpdk_flowcontrol_callback_t callback);
u32 dpdk_interface_tx_vector (vlib_main_t * vm, u32 dev_instance);
void set_efd_bitmap (u8 *bitmap, u32 value, u32 op);
struct rte_mbuf * dpdk_replicate_packet_mb (vlib_buffer_t * b);
struct rte_mbuf * dpdk_zerocopy_replicate_packet_mb (vlib_buffer_t * b);
#define foreach_dpdk_error \
_(NONE, "no error") \
_(RX_PACKET_ERROR, "Rx packet errors") \
_(RX_BAD_FCS, "Rx bad fcs") \
_(L4_CHECKSUM_ERROR, "Rx L4 checksum errors") \
_(IP_CHECKSUM_ERROR, "Rx ip checksum errors") \
_(RX_ALLOC_FAIL, "rx buf alloc from free list failed") \
_(RX_ALLOC_NO_PHYSMEM, "rx buf alloc failed no physmem") \
_(RX_ALLOC_DROP_PKTS, "rx packets dropped due to alloc error") \
_(IPV4_EFD_DROP_PKTS, "IPV4 Early Fast Discard rx drops") \
_(IPV6_EFD_DROP_PKTS, "IPV6 Early Fast Discard rx drops") \
_(MPLS_EFD_DROP_PKTS, "MPLS Early Fast Discard rx drops") \
_(VLAN_EFD_DROP_PKTS, "VLAN Early Fast Discard rx drops")
typedef enum {
#define _(f,s) DPDK_ERROR_##f,
foreach_dpdk_error
#undef _
DPDK_N_ERROR,
} dpdk_error_t;
/*
* Increment EFD drop counter
*/
static_always_inline
void increment_efd_drop_counter (vlib_main_t * vm, u32 counter_index, u32 count)
{
vlib_node_t *my_n;
my_n = vlib_get_node (vm, dpdk_input_node.index);
vm->error_main.counters[my_n->error_heap_index+counter_index] += count;
}
int dpdk_set_stat_poll_interval (f64 interval);
int dpdk_set_link_state_poll_interval (f64 interval);
void dpdk_update_link_state (dpdk_device_t * xd, f64 now);
void dpdk_device_lock_init(dpdk_device_t * xd);
void dpdk_device_lock_free(dpdk_device_t * xd);
void dpdk_efd_update_counters(dpdk_device_t *xd, u32 n_buffers, u16 enabled);
u32 is_efd_discardable(vlib_thread_main_t *tm,
vlib_buffer_t * b0,
struct rte_mbuf *mb);
#if DPDK_VHOST_USER
/* dpdk vhost-user interrupt management */
u8 dpdk_vhost_user_want_interrupt (dpdk_device_t *xd, int idx);
void dpdk_vhost_user_send_interrupt (vlib_main_t * vm, dpdk_device_t * xd,
int idx);
#endif
static inline u64 vnet_get_aggregate_rx_packets (void)
{
dpdk_main_t * dm = &dpdk_main;
u64 sum = 0;
dpdk_worker_t * dw;
vec_foreach(dw, dm->workers)
sum += dw->aggregate_rx_packets;
return sum;
}
void dpdk_rx_trace (dpdk_main_t * dm,
vlib_node_runtime_t * node,
dpdk_device_t * xd,
u16 queue_id,
u32 * buffers,
uword n_buffers);
#define EFD_OPERATION_LESS_THAN 0
#define EFD_OPERATION_GREATER_OR_EQUAL 1
void efd_config(u32 enabled,
u32 ip_prec, u32 ip_op,
u32 mpls_exp, u32 mpls_op,
u32 vlan_cos, u32 vlan_op);
void post_sw_interface_set_flags (vlib_main_t *vm, u32 sw_if_index, u32 flags);
#if DPDK_VHOST_USER
typedef struct vhost_user_memory vhost_user_memory_t;
void dpdk_vhost_user_process_init (void **ctx);
void dpdk_vhost_user_process_cleanup (void *ctx);
uword dpdk_vhost_user_process_if (vlib_main_t *vm, dpdk_device_t *xd, void *ctx);
// vhost-user calls
int dpdk_vhost_user_create_if (vnet_main_t * vnm, vlib_main_t * vm,
const char * sock_filename,
u8 is_server,
u32 * sw_if_index,
u64 feature_mask,
u8 renumber, u32 custom_dev_instance,
u8 *hwaddr);
int dpdk_vhost_user_modify_if (vnet_main_t * vnm, vlib_main_t * vm,
const char * sock_filename,
u8 is_server,
u32 sw_if_index,
u64 feature_mask,
u8 renumber, u32 custom_dev_instance);
int dpdk_vhost_user_delete_if (vnet_main_t * vnm, vlib_main_t * vm,
u32 sw_if_index);
int dpdk_vhost_user_dump_ifs (vnet_main_t * vnm, vlib_main_t * vm,
vhost_user_intf_details_t **out_vuids);
#endif
u32 dpdk_get_admin_up_down_in_progress (void);
u32 dpdk_num_mbufs (void);
dpdk_pmd_t dpdk_get_pmd_type (vnet_hw_interface_t *hi);
i8 dpdk_get_cpu_socket (vnet_hw_interface_t *hi);
void * dpdk_input_multiarch_select();
void * dpdk_input_rss_multiarch_select();
void * dpdk_input_efd_multiarch_select();
clib_error_t*
dpdk_get_hw_interface_stats (u32 hw_if_index, struct rte_eth_stats* dest);
format_function_t format_dpdk_device_name;
format_function_t format_dpdk_device;
format_function_t format_dpdk_tx_dma_trace;
format_function_t format_dpdk_rx_dma_trace;
format_function_t format_dpdk_rte_mbuf;
format_function_t format_dpdk_rx_rte_mbuf;
unformat_function_t unformat_socket_mem;
clib_error_t * unformat_rss_fn(unformat_input_t * input, uword * rss_fn);
static inline void
dpdk_pmd_constructor_init()
{
/* Add references to DPDK Driver Constructor functions to get the dynamic
* loader to pull in the driver library & run the constructors.
*/
#define _(d) \
do { \
void devinitfn_ ##d(void); \
__attribute__((unused)) void (* volatile pf)(void); \
pf = devinitfn_ ##d; \
} while(0);
#ifdef RTE_LIBRTE_EM_PMD
_(em_pmd_drv)
#endif
#ifdef RTE_LIBRTE_IGB_PMD
_(pmd_igb_drv)
#endif
#ifdef RTE_LIBRTE_IXGBE_PMD
_(rte_ixgbe_driver)
#endif
#ifdef RTE_LIBRTE_I40E_PMD
_(rte_i40e_driver)
_(rte_i40evf_driver)
#endif
#ifdef RTE_LIBRTE_FM10K_PMD
_(rte_fm10k_driver)
#endif
#ifdef RTE_LIBRTE_VIRTIO_PMD
_(rte_virtio_driver)
#endif
#ifdef RTE_LIBRTE_VMXNET3_PMD
_(rte_vmxnet3_driver)
#endif
#ifdef RTE_LIBRTE_VICE_PMD
_(rte_vice_driver)
#endif
#ifdef RTE_LIBRTE_ENIC_PMD
_(rte_enic_driver)
#endif
#ifdef RTE_LIBRTE_PMD_AF_PACKET
_(pmd_af_packet_drv)
#endif
#ifdef RTE_LIBRTE_CXGBE_PMD
_(rte_cxgbe_driver)
#endif
#ifdef RTE_LIBRTE_PMD_BOND
_(bond_drv)
#endif
#ifdef RTE_LIBRTE_DPAA2_PMD
_(pmd_dpaa2_drv)
#endif
#undef _
/*
* At the moment, the ThunderX NIC driver doesn't have
* an entry point named "devinitfn_rte_xxx_driver"
*/
#define _(d) \
do { \
void d(void); \
__attribute__((unused)) void (* volatile pf)(void); \
pf = d; \
} while(0);
#ifdef RTE_LIBRTE_THUNDERVNIC_PMD
_(rte_nicvf_pmd_init)
#endif
#undef _
}
uword
admin_up_down_process (vlib_main_t * vm,
vlib_node_runtime_t * rt,
vlib_frame_t * f);
#endif /* __included_dpdk_h__ */
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