2 * Copyright (c) 2015 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
15 #ifndef __included_dpdk_h__
16 #define __included_dpdk_h__
18 /* $$$$ We should rename always_inline -> clib_always_inline */
21 #include <rte_config.h>
23 #include <rte_common.h>
26 #include <rte_memory.h>
27 #include <rte_memcpy.h>
28 #include <rte_memzone.h>
29 #include <rte_tailq.h>
31 #include <rte_per_lcore.h>
32 #include <rte_launch.h>
33 #include <rte_atomic.h>
34 #include <rte_cycles.h>
35 #include <rte_prefetch.h>
36 #include <rte_lcore.h>
37 #include <rte_per_lcore.h>
38 #include <rte_branch_prediction.h>
39 #include <rte_interrupts.h>
41 #include <rte_random.h>
42 #include <rte_debug.h>
43 #include <rte_ether.h>
44 #include <rte_ethdev.h>
46 #include <rte_mempool.h>
51 #include <rte_virtio_net.h>
52 #include <rte_pci_dev_ids.h>
53 #include <rte_version.h>
55 #include <vnet/unix/pcap.h>
56 #include <vnet/devices/virtio/vhost-user.h>
59 #define always_inline static inline
61 #define always_inline static inline __attribute__ ((__always_inline__))
64 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
65 #define NB_MBUF (32<<10)
67 vnet_device_class_t dpdk_device_class;
68 vlib_node_registration_t dpdk_input_node;
69 vlib_node_registration_t dpdk_io_input_node;
70 vlib_node_registration_t handoff_dispatch_node;
73 VNET_DPDK_DEV_ETH = 1, /* Standard DPDK PMD driver */
74 VNET_DPDK_DEV_KNI, /* Kernel NIC Interface */
75 VNET_DPDK_DEV_VHOST_USER,
76 VNET_DPDK_DEV_UNKNOWN, /* must be last */
79 #define foreach_dpdk_pmd \
80 _ ("rte_nicvf_pmd", THUNDERX) \
81 _ ("rte_em_pmd", E1000EM) \
82 _ ("rte_igb_pmd", IGB) \
83 _ ("rte_igbvf_pmd", IGBVF) \
84 _ ("rte_ixgbe_pmd", IXGBE) \
85 _ ("rte_ixgbevf_pmd", IXGBEVF) \
86 _ ("rte_i40e_pmd", I40E) \
87 _ ("rte_i40evf_pmd", I40EVF) \
88 _ ("rte_virtio_pmd", VIRTIO) \
89 _ ("rte_vice_pmd", VICE) \
90 _ ("rte_enic_pmd", ENIC) \
91 _ ("rte_vmxnet3_pmd", VMXNET3) \
92 _ ("AF_PACKET PMD", AF_PACKET) \
93 _ ("rte_pmd_fm10k", FM10K) \
94 _ ("rte_cxgbe_pmd", CXGBE)
98 #define _(s,f) VNET_DPDK_PMD_##f,
102 VNET_DPDK_PMD_NETMAP,
104 VNET_DPDK_PMD_UNKNOWN, /* must be last */
108 VNET_DPDK_PORT_TYPE_ETH_1G,
109 VNET_DPDK_PORT_TYPE_ETH_10G,
110 VNET_DPDK_PORT_TYPE_ETH_40G,
111 VNET_DPDK_PORT_TYPE_ETH_SWITCH,
113 VNET_DPDK_PORT_TYPE_NETMAP,
115 VNET_DPDK_PORT_TYPE_AF_PACKET,
116 VNET_DPDK_PORT_TYPE_UNKNOWN,
121 vlib_frame_t * frame;
124 #define DPDK_EFD_MAX_DISCARD_RATE 10
130 u32 consec_full_frames_cnt;
135 u32 total_packet_cnt;
142 #if RTE_VERSION >= RTE_VERSION_NUM(2, 2, 0, 0)
146 u32 n_since_last_int;
155 char sock_filename[256];
162 #if RTE_VERSION >= RTE_VERSION_NUM(2, 2, 0, 0)
163 dpdk_vu_vring vrings[VHOST_MAX_QUEUE_PAIRS * 2];
165 dpdk_vu_vring vrings[2];
167 u64 region_addr[VHOST_MEMORY_MAX_NREGIONS];
168 u32 region_fd[VHOST_MEMORY_MAX_NREGIONS];
171 typedef void (*dpdk_flowcontrol_callback_t) (vlib_main_t *vm,
176 * The header for the tx_vector in dpdk_device_t.
177 * Head and tail are indexes into the tx_vector and are of type
178 * u64 so they never overflow.
186 CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
187 volatile u32 **lockp;
192 u32 vlib_hw_if_index;
193 u32 vlib_sw_if_index;
195 /* next node index if we decide to steal the rx graph arc */
196 u32 per_interface_next_index;
198 /* dpdk rte_mbuf rx and tx vectors, VLIB_FRAME_SIZE */
199 struct rte_mbuf *** tx_vectors; /* one per worker thread */
200 struct rte_mbuf *** rx_vectors;
202 /* vector of traced contexts, per device */
203 u32 * d_trace_buffers;
205 /* per-worker destination frame queue */
206 dpdk_frame_t * frames;
208 dpdk_device_type_t dev_type:8;
215 CLIB_CACHE_LINE_ALIGN_MARK(cacheline1);
222 u16 * cpu_socket_id_by_queue;
223 struct rte_eth_conf port_conf;
224 struct rte_eth_txconf tx_conf;
230 /* vhost-user related */
232 struct virtio_net vu_vhost_dev;
234 dpdk_vu_intf_t *vu_intf;
237 u8 af_packet_port_id;
239 struct rte_eth_link link;
240 f64 time_last_link_update;
242 struct rte_eth_stats stats;
243 struct rte_eth_stats last_stats;
244 struct rte_eth_xstats * xstats;
245 f64 time_last_stats_update;
246 dpdk_port_type_t port_type;
248 dpdk_efd_agent_t efd_agent;
249 u8 need_txlock; /* Used by VNET_DPDK_DEV_VHOST_USER */
254 CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
262 i32 n_vectors[MAX_NELTS];
263 } frame_queue_trace_t;
265 #define DPDK_TX_RING_SIZE (4 * 1024)
267 #define DPDK_STATS_POLL_INTERVAL 10.0
268 #define DPDK_LINK_POLL_INTERVAL 3.0
271 CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
273 /* total input packet counter */
274 u64 aggregate_rx_packets;
280 } dpdk_device_and_queue_t;
282 /* Early-Fast-Discard (EFD) */
283 #define DPDK_EFD_DISABLED 0
284 #define DPDK_EFD_DISCARD_ENABLED (1 << 0)
285 #define DPDK_EFD_MONITOR_ENABLED (1 << 1)
286 #define DPDK_EFD_DROPALL_ENABLED (1 << 2)
288 #define DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT 90
289 #define DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH 6
291 typedef struct dpdk_efd_t {
294 u16 consec_full_frames_hi_thresh;
301 dpdk_device_t * devices;
302 dpdk_device_and_queue_t ** devices_by_cpu;
304 /* per-thread recycle lists */
307 /* buffer flags template, configurable to enable/disable tcp / udp cksum */
308 u32 buffer_flags_template;
310 /* flow control callback. If 0 then flow control is disabled */
311 dpdk_flowcontrol_callback_t flowcontrol_callback;
313 /* vlib buffer free list, must be same size as an rte_mbuf */
314 u32 vlib_buffer_free_list_index;
317 * format interface names ala xxxEthernet%d/%d/%d instead of
318 * xxxEthernet%x/%x/%x. For VIRL.
320 u8 interface_name_format_decimal;
323 /* dpdk worker "threads" */
324 dpdk_worker_t * workers;
328 u8 * eal_init_args_str;
329 u8 * eth_if_blacklist;
330 u8 * eth_if_whitelist;
331 u8 * uio_driver_name;
334 /* Required config parameters */
335 u8 coremask_set_manually;
336 u8 nchannels_set_manually;
342 u8 num_kni; /* while kni_init allows u32, port_id in callback fn is only u8 */
344 /* Ethernet input node index */
345 u32 ethernet_input_node_index;
347 /* dpdk i/o thread initialization barrier */
348 volatile u32 io_thread_release;
350 /* pcap tracing [only works if (CLIB_DEBUG > 0)] */
352 pcap_main_t pcap_main;
354 u32 pcap_sw_if_index;
355 u32 pcap_pkts_to_capture;
357 /* virtio vhost-user switch */
360 /* vhost-user coalescence frames config */
361 u32 vhost_coalesce_frames;
362 f64 vhost_coalesce_time;
365 uword * dpdk_device_by_kni_port_id;
366 uword * vu_sw_if_index_by_listener_fd;
367 uword * vu_sw_if_index_by_sock_fd;
368 u32 * vu_inactive_interfaces_device_index;
372 /* efd (early-fast-discard) settings */
376 * flag indicating that a posted admin up/down
377 * (via post_sw_interface_set_flags) is in progress
379 u8 admin_up_down_in_progress;
383 /* which cpus are running dpdk-input */
384 int input_cpu_first_index;
388 vlib_main_t * vlib_main;
389 vnet_main_t * vnet_main;
392 dpdk_main_t dpdk_main;
395 DPDK_RX_NEXT_IP4_INPUT,
396 DPDK_RX_NEXT_IP6_INPUT,
397 DPDK_RX_NEXT_MPLS_INPUT,
398 DPDK_RX_NEXT_ETHERNET_INPUT,
403 void vnet_buffer_needs_dpdk_mb (vlib_buffer_t * b);
405 void dpdk_set_next_node (dpdk_rx_next_t, char *);
407 typedef void (*dpdk_io_thread_callback_t) (vlib_main_t *vm);
409 void dpdk_io_thread (vlib_worker_thread_t * w,
413 dpdk_io_thread_callback_t callback);
414 void dpdk_thread_input (dpdk_main_t * dm, dpdk_device_t * xd);
416 clib_error_t * dpdk_port_setup (dpdk_main_t * dm, dpdk_device_t * xd);
418 void dpdk_set_flowcontrol_callback (vlib_main_t *vm,
419 dpdk_flowcontrol_callback_t callback);
421 u32 dpdk_interface_tx_vector (vlib_main_t * vm, u32 dev_instance);
423 vlib_frame_queue_elt_t * vlib_get_handoff_queue_elt (u32 vlib_worker_index);
425 u32 dpdk_get_handoff_node_index (void);
427 void set_efd_bitmap (u8 *bitmap, u32 value, u32 op);
429 #define foreach_dpdk_error \
430 _(NONE, "no error") \
431 _(RX_PACKET_ERROR, "Rx packet errors") \
432 _(RX_BAD_FCS, "Rx bad fcs") \
433 _(L4_CHECKSUM_ERROR, "Rx L4 checksum errors") \
434 _(IP_CHECKSUM_ERROR, "Rx ip checksum errors") \
435 _(RX_ALLOC_FAIL, "rx buf alloc from free list failed") \
436 _(RX_ALLOC_NO_PHYSMEM, "rx buf alloc failed no physmem") \
437 _(RX_ALLOC_DROP_PKTS, "rx packets dropped due to alloc error") \
438 _(IPV4_EFD_DROP_PKTS, "IPV4 Early Fast Discard rx drops") \
439 _(IPV6_EFD_DROP_PKTS, "IPV6 Early Fast Discard rx drops") \
440 _(MPLS_EFD_DROP_PKTS, "MPLS Early Fast Discard rx drops") \
441 _(VLAN_EFD_DROP_PKTS, "VLAN Early Fast Discard rx drops")
444 #define _(f,s) DPDK_ERROR_##f,
451 * Increment EFD drop counter
454 void increment_efd_drop_counter (vlib_main_t * vm, u32 counter_index, u32 count)
458 my_n = vlib_get_node (vm, dpdk_input_node.index);
459 vm->error_main.counters[my_n->error_heap_index+counter_index] += count;
462 void dpdk_update_link_state (dpdk_device_t * xd, f64 now);
463 void dpdk_device_lock_init(dpdk_device_t * xd);
464 void dpdk_device_lock_free(dpdk_device_t * xd);
465 void dpdk_efd_update_counters(dpdk_device_t *xd, u32 n_buffers, u16 enabled);
466 u32 is_efd_discardable(vlib_thread_main_t *tm,
468 struct rte_mbuf *mb);
470 /* dpdk vhost-user interrupt management */
471 u8 dpdk_vhost_user_want_interrupt (dpdk_device_t *xd, int idx);
472 void dpdk_vhost_user_send_interrupt (vlib_main_t * vm, dpdk_device_t * xd,
476 static inline u64 vnet_get_aggregate_rx_packets (void)
478 dpdk_main_t * dm = &dpdk_main;
482 vec_foreach(dw, dm->workers)
483 sum += dw->aggregate_rx_packets;
488 void dpdk_rx_trace (dpdk_main_t * dm,
489 vlib_node_runtime_t * node,
495 #define EFD_OPERATION_LESS_THAN 0
496 #define EFD_OPERATION_GREATER_OR_EQUAL 1
498 void efd_config(u32 enabled,
499 u32 ip_prec, u32 ip_op,
500 u32 mpls_exp, u32 mpls_op,
501 u32 vlan_cos, u32 vlan_op);
503 void post_sw_interface_set_flags (vlib_main_t *vm, u32 sw_if_index, u32 flags);
505 typedef struct vhost_user_memory vhost_user_memory_t;
507 void dpdk_vhost_user_process_init (void **ctx);
508 void dpdk_vhost_user_process_cleanup (void *ctx);
509 uword dpdk_vhost_user_process_if (vlib_main_t *vm, dpdk_device_t *xd, void *ctx);
512 int dpdk_vhost_user_create_if (vnet_main_t * vnm, vlib_main_t * vm,
513 const char * sock_filename,
517 u8 renumber, u32 custom_dev_instance,
519 int dpdk_vhost_user_modify_if (vnet_main_t * vnm, vlib_main_t * vm,
520 const char * sock_filename,
524 u8 renumber, u32 custom_dev_instance);
525 int dpdk_vhost_user_delete_if (vnet_main_t * vnm, vlib_main_t * vm,
527 int dpdk_vhost_user_dump_ifs (vnet_main_t * vnm, vlib_main_t * vm,
528 vhost_user_intf_details_t **out_vuids);
530 u32 dpdk_get_admin_up_down_in_progress (void);
533 dpdk_input_rss (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f);
535 #endif /* __included_dpdk_h__ */