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>
49 #include <rte_virtio_net.h>
50 #include <rte_pci_dev_ids.h>
51 #include <rte_version.h>
53 #include <vnet/unix/pcap.h>
54 #include <vnet/devices/virtio/vhost-user.h>
57 #define always_inline static inline
59 #define always_inline static inline __attribute__ ((__always_inline__))
62 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
63 #define NB_MBUF (32<<10)
65 vnet_device_class_t dpdk_device_class;
66 vlib_node_registration_t dpdk_input_node;
67 vlib_node_registration_t dpdk_io_input_node;
68 vlib_node_registration_t handoff_dispatch_node;
71 VNET_DPDK_DEV_ETH = 1, /* Standard DPDK PMD driver */
72 VNET_DPDK_DEV_KNI, /* Kernel NIC Interface */
73 VNET_DPDK_DEV_VHOST_USER,
74 VNET_DPDK_DEV_UNKNOWN, /* must be last */
77 #define foreach_dpdk_pmd \
78 _ ("rte_nicvf_pmd", THUNDERX) \
79 _ ("rte_em_pmd", E1000EM) \
80 _ ("rte_igb_pmd", IGB) \
81 _ ("rte_igbvf_pmd", IGBVF) \
82 _ ("rte_ixgbe_pmd", IXGBE) \
83 _ ("rte_ixgbevf_pmd", IXGBEVF) \
84 _ ("rte_i40e_pmd", I40E) \
85 _ ("rte_i40evf_pmd", I40EVF) \
86 _ ("rte_virtio_pmd", VIRTIO) \
87 _ ("rte_vice_pmd", VICE) \
88 _ ("rte_enic_pmd", ENIC) \
89 _ ("rte_vmxnet3_pmd", VMXNET3) \
90 _ ("AF_PACKET PMD", AF_PACKET) \
91 _ ("rte_pmd_fm10k", FM10K) \
92 _ ("rte_cxgbe_pmd", CXGBE)
96 #define _(s,f) VNET_DPDK_PMD_##f,
100 VNET_DPDK_PMD_NETMAP,
102 VNET_DPDK_PMD_UNKNOWN, /* must be last */
106 VNET_DPDK_PORT_TYPE_ETH_1G,
107 VNET_DPDK_PORT_TYPE_ETH_10G,
108 VNET_DPDK_PORT_TYPE_ETH_40G,
109 VNET_DPDK_PORT_TYPE_ETH_SWITCH,
111 VNET_DPDK_PORT_TYPE_NETMAP,
113 VNET_DPDK_PORT_TYPE_AF_PACKET,
114 VNET_DPDK_PORT_TYPE_UNKNOWN,
119 vlib_frame_t * frame;
122 #define DPDK_EFD_MAX_DISCARD_RATE 10
128 u32 consec_full_frames_cnt;
133 u32 total_packet_cnt;
140 #if RTE_VERSION >= RTE_VERSION_NUM(2, 2, 0, 0)
144 u32 n_since_last_int;
153 char sock_filename[256];
160 #if RTE_VERSION >= RTE_VERSION_NUM(2, 2, 0, 0)
161 dpdk_vu_vring vrings[VHOST_MAX_QUEUE_PAIRS * 2];
163 dpdk_vu_vring vrings[2];
165 u64 region_addr[VHOST_MEMORY_MAX_NREGIONS];
166 u32 region_fd[VHOST_MEMORY_MAX_NREGIONS];
169 typedef void (*dpdk_flowcontrol_callback_t) (vlib_main_t *vm,
174 * The header for the tx_vector in dpdk_device_t.
175 * Head and tail are indexes into the tx_vector and are of type
176 * u64 so they never overflow.
184 CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
185 volatile u32 **lockp;
190 u32 vlib_hw_if_index;
191 u32 vlib_sw_if_index;
193 /* next node index if we decide to steal the rx graph arc */
194 u32 per_interface_next_index;
196 /* dpdk rte_mbuf rx and tx vectors, VLIB_FRAME_SIZE */
197 struct rte_mbuf *** tx_vectors; /* one per worker thread */
198 struct rte_mbuf *** rx_vectors;
200 /* vector of traced contexts, per device */
201 u32 * d_trace_buffers;
203 /* per-worker destination frame queue */
204 dpdk_frame_t * frames;
206 dpdk_device_type_t dev_type:8;
213 CLIB_CACHE_LINE_ALIGN_MARK(cacheline1);
220 u16 * cpu_socket_id_by_queue;
221 struct rte_eth_conf port_conf;
222 struct rte_eth_txconf tx_conf;
228 /* vhost-user related */
230 struct virtio_net vu_vhost_dev;
232 dpdk_vu_intf_t *vu_intf;
235 u8 af_packet_port_id;
237 struct rte_eth_link link;
238 f64 time_last_link_update;
240 struct rte_eth_stats stats;
241 struct rte_eth_stats last_stats;
242 struct rte_eth_xstats * xstats;
243 f64 time_last_stats_update;
244 dpdk_port_type_t port_type;
246 dpdk_efd_agent_t efd_agent;
251 CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
259 i32 n_vectors[MAX_NELTS];
260 } frame_queue_trace_t;
262 #define DPDK_TX_RING_SIZE (4 * 1024)
264 #define DPDK_STATS_POLL_INTERVAL 10.0
265 #define DPDK_LINK_POLL_INTERVAL 3.0
268 CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
270 /* total input packet counter */
271 u64 aggregate_rx_packets;
277 } dpdk_device_and_queue_t;
279 /* Early-Fast-Discard (EFD) */
280 #define DPDK_EFD_DISABLED 0
281 #define DPDK_EFD_DISCARD_ENABLED (1 << 0)
282 #define DPDK_EFD_MONITOR_ENABLED (1 << 1)
283 #define DPDK_EFD_DROPALL_ENABLED (1 << 2)
285 #define DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT 90
286 #define DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH 6
288 typedef struct dpdk_efd_t {
291 u16 consec_full_frames_hi_thresh;
298 dpdk_device_t * devices;
299 dpdk_device_and_queue_t ** devices_by_cpu;
301 /* per-thread recycle lists */
304 /* buffer flags template, configurable to enable/disable tcp / udp cksum */
305 u32 buffer_flags_template;
307 /* flow control callback. If 0 then flow control is disabled */
308 dpdk_flowcontrol_callback_t flowcontrol_callback;
310 /* vlib buffer free list, must be same size as an rte_mbuf */
311 u32 vlib_buffer_free_list_index;
314 * format interface names ala xxxEthernet%d/%d/%d instead of
315 * xxxEthernet%x/%x/%x. For VIRL.
317 u8 interface_name_format_decimal;
320 /* dpdk worker "threads" */
321 dpdk_worker_t * workers;
325 u8 * eth_if_blacklist;
326 u8 * eth_if_whitelist;
327 u8 * uio_driver_name;
330 /* Required config parameters */
331 u8 coremask_set_manually;
332 u8 nchannels_set_manually;
338 u8 num_kni; /* while kni_init allows u32, port_id in callback fn is only u8 */
340 /* Ethernet input node index */
341 u32 ethernet_input_node_index;
343 /* dpdk i/o thread initialization barrier */
344 volatile u32 io_thread_release;
346 /* pcap tracing [only works if (CLIB_DEBUG > 0)] */
348 pcap_main_t pcap_main;
350 u32 pcap_sw_if_index;
351 u32 pcap_pkts_to_capture;
353 /* virtio vhost-user switch */
356 /* vhost-user coalescence frames config */
357 u32 vhost_coalesce_frames;
358 f64 vhost_coalesce_time;
361 uword * dpdk_device_by_kni_port_id;
362 uword * vu_sw_if_index_by_listener_fd;
363 uword * vu_sw_if_index_by_sock_fd;
364 u32 * vu_inactive_interfaces_device_index;
368 /* efd (early-fast-discard) settings */
372 * flag indicating that a posted admin up/down
373 * (via post_sw_interface_set_flags) is in progress
375 u8 admin_up_down_in_progress;
379 /* which cpus are running dpdk-input */
380 int input_cpu_first_index;
384 vlib_main_t * vlib_main;
385 vnet_main_t * vnet_main;
388 dpdk_main_t dpdk_main;
391 DPDK_RX_NEXT_IP4_INPUT,
392 DPDK_RX_NEXT_IP6_INPUT,
393 DPDK_RX_NEXT_MPLS_INPUT,
394 DPDK_RX_NEXT_ETHERNET_INPUT,
399 void vnet_buffer_needs_dpdk_mb (vlib_buffer_t * b);
401 void dpdk_set_next_node (dpdk_rx_next_t, char *);
403 typedef void (*dpdk_io_thread_callback_t) (vlib_main_t *vm);
405 void dpdk_io_thread (vlib_worker_thread_t * w,
409 dpdk_io_thread_callback_t callback);
410 void dpdk_thread_input (dpdk_main_t * dm, dpdk_device_t * xd);
412 clib_error_t * dpdk_port_setup (dpdk_main_t * dm, dpdk_device_t * xd);
414 void dpdk_set_flowcontrol_callback (vlib_main_t *vm,
415 dpdk_flowcontrol_callback_t callback);
417 u32 dpdk_interface_tx_vector (vlib_main_t * vm, u32 dev_instance);
419 vlib_frame_queue_elt_t * vlib_get_handoff_queue_elt (u32 vlib_worker_index);
421 u32 dpdk_get_handoff_node_index (void);
423 void set_efd_bitmap (u8 *bitmap, u32 value, u32 op);
425 #define foreach_dpdk_error \
426 _(NONE, "no error") \
427 _(RX_PACKET_ERROR, "Rx packet errors") \
428 _(RX_BAD_FCS, "Rx bad fcs") \
429 _(L4_CHECKSUM_ERROR, "Rx L4 checksum errors") \
430 _(IP_CHECKSUM_ERROR, "Rx ip checksum errors") \
431 _(RX_ALLOC_FAIL, "rx buf alloc from free list failed") \
432 _(RX_ALLOC_NO_PHYSMEM, "rx buf alloc failed no physmem") \
433 _(RX_ALLOC_DROP_PKTS, "rx packets dropped due to alloc error") \
434 _(IPV4_EFD_DROP_PKTS, "IPV4 Early Fast Discard rx drops") \
435 _(IPV6_EFD_DROP_PKTS, "IPV6 Early Fast Discard rx drops") \
436 _(MPLS_EFD_DROP_PKTS, "MPLS Early Fast Discard rx drops") \
437 _(VLAN_EFD_DROP_PKTS, "VLAN Early Fast Discard rx drops")
440 #define _(f,s) DPDK_ERROR_##f,
447 * Increment EFD drop counter
450 void increment_efd_drop_counter (vlib_main_t * vm, u32 counter_index, u32 count)
454 my_n = vlib_get_node (vm, dpdk_input_node.index);
455 vm->error_main.counters[my_n->error_heap_index+counter_index] += count;
458 void dpdk_update_link_state (dpdk_device_t * xd, f64 now);
459 void dpdk_device_lock_init(dpdk_device_t * xd);
460 void dpdk_device_lock_free(dpdk_device_t * xd);
461 void dpdk_efd_update_counters(dpdk_device_t *xd, u32 n_buffers, u16 enabled);
462 u32 is_efd_discardable(vlib_thread_main_t *tm,
464 struct rte_mbuf *mb);
466 /* dpdk vhost-user interrupt management */
467 u8 dpdk_vhost_user_want_interrupt (dpdk_device_t *xd, int idx);
468 void dpdk_vhost_user_send_interrupt (vlib_main_t * vm, dpdk_device_t * xd,
472 static inline u64 vnet_get_aggregate_rx_packets (void)
474 dpdk_main_t * dm = &dpdk_main;
478 vec_foreach(dw, dm->workers)
479 sum += dw->aggregate_rx_packets;
484 void dpdk_rx_trace (dpdk_main_t * dm,
485 vlib_node_runtime_t * node,
491 #define EFD_OPERATION_LESS_THAN 0
492 #define EFD_OPERATION_GREATER_OR_EQUAL 1
494 void efd_config(u32 enabled,
495 u32 ip_prec, u32 ip_op,
496 u32 mpls_exp, u32 mpls_op,
497 u32 vlan_cos, u32 vlan_op);
499 void post_sw_interface_set_flags (vlib_main_t *vm, u32 sw_if_index, u32 flags);
501 typedef struct vhost_user_memory vhost_user_memory_t;
503 void dpdk_vhost_user_process_init (void **ctx);
504 void dpdk_vhost_user_process_cleanup (void *ctx);
505 uword dpdk_vhost_user_process_if (vlib_main_t *vm, dpdk_device_t *xd, void *ctx);
508 int dpdk_vhost_user_create_if (vnet_main_t * vnm, vlib_main_t * vm,
509 const char * sock_filename,
513 u8 renumber, u32 custom_dev_instance);
514 int dpdk_vhost_user_modify_if (vnet_main_t * vnm, vlib_main_t * vm,
515 const char * sock_filename,
519 u8 renumber, u32 custom_dev_instance);
520 int dpdk_vhost_user_delete_if (vnet_main_t * vnm, vlib_main_t * vm,
522 int dpdk_vhost_user_dump_ifs (vnet_main_t * vnm, vlib_main_t * vm,
523 vhost_user_intf_details_t **out_vuids);
525 u32 dpdk_get_admin_up_down_in_progress (void);
528 dpdk_input_rss (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f);
530 #endif /* __included_dpdk_h__ */