bpf: introduce basic Rx/Tx filters
Introduce API to install BPF based filters on ethdev RX/TX path. Current implementation is pure SW one, based on ethdev RX/TX callback mechanism. Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com> Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Konstantin Ananyev
Thomas Monjalon
parent
cc752e43e0
commit
a93ff62a89
@ -226,6 +226,8 @@ New Features
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The BPF Library provides the ability to load and execute
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Enhanced Berkeley Packet Filter (eBPF) within user-space dpdk application.
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Also it introduces basic framework to load/unload BPF-based filters
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on eth devices (right now only via SW RX/TX callbacks).
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It also adds dependency on libelf.
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@ -24,6 +24,7 @@ LIBABIVER := 1
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SRCS-$(CONFIG_RTE_LIBRTE_BPF) += bpf.c
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SRCS-$(CONFIG_RTE_LIBRTE_BPF) += bpf_exec.c
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SRCS-$(CONFIG_RTE_LIBRTE_BPF) += bpf_load.c
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SRCS-$(CONFIG_RTE_LIBRTE_BPF) += bpf_pkt.c
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SRCS-$(CONFIG_RTE_LIBRTE_BPF) += bpf_validate.c
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ifeq ($(CONFIG_RTE_LIBRTE_BPF_ELF),y)
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SRCS-$(CONFIG_RTE_LIBRTE_BPF) += bpf_load_elf.c
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@ -35,5 +36,6 @@ endif
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# install header files
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SYMLINK-$(CONFIG_RTE_LIBRTE_BPF)-include += bpf_def.h
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SYMLINK-$(CONFIG_RTE_LIBRTE_BPF)-include += rte_bpf.h
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SYMLINK-$(CONFIG_RTE_LIBRTE_BPF)-include += rte_bpf_ethdev.h
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include $(RTE_SDK)/mk/rte.lib.mk
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605
lib/librte_bpf/bpf_pkt.c
Normal file
605
lib/librte_bpf/bpf_pkt.c
Normal file
@ -0,0 +1,605 @@
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2018 Intel Corporation
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*/
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <inttypes.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/queue.h>
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#include <rte_common.h>
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#include <rte_byteorder.h>
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#include <rte_malloc.h>
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#include <rte_log.h>
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#include <rte_debug.h>
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#include <rte_cycles.h>
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#include <rte_eal.h>
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#include <rte_per_lcore.h>
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#include <rte_lcore.h>
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#include <rte_atomic.h>
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#include <rte_mbuf.h>
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#include <rte_ethdev.h>
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#include <rte_bpf_ethdev.h>
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#include "bpf_impl.h"
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/*
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* information about installed BPF rx/tx callback
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*/
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struct bpf_eth_cbi {
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/* used by both data & control path */
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uint32_t use; /*usage counter */
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const struct rte_eth_rxtx_callback *cb; /* callback handle */
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struct rte_bpf *bpf;
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struct rte_bpf_jit jit;
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/* used by control path only */
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LIST_ENTRY(bpf_eth_cbi) link;
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uint16_t port;
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uint16_t queue;
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} __rte_cache_aligned;
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/*
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* Odd number means that callback is used by datapath.
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* Even number means that callback is not used by datapath.
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*/
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#define BPF_ETH_CBI_INUSE 1
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/*
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* List to manage RX/TX installed callbacks.
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*/
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LIST_HEAD(bpf_eth_cbi_list, bpf_eth_cbi);
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enum {
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BPF_ETH_RX,
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BPF_ETH_TX,
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BPF_ETH_NUM,
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};
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/*
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* information about all installed BPF rx/tx callbacks
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*/
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struct bpf_eth_cbh {
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rte_spinlock_t lock;
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struct bpf_eth_cbi_list list;
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uint32_t type;
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};
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static struct bpf_eth_cbh rx_cbh = {
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.lock = RTE_SPINLOCK_INITIALIZER,
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.list = LIST_HEAD_INITIALIZER(list),
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.type = BPF_ETH_RX,
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};
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static struct bpf_eth_cbh tx_cbh = {
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.lock = RTE_SPINLOCK_INITIALIZER,
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.list = LIST_HEAD_INITIALIZER(list),
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.type = BPF_ETH_TX,
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};
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/*
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* Marks given callback as used by datapath.
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*/
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static __rte_always_inline void
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bpf_eth_cbi_inuse(struct bpf_eth_cbi *cbi)
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{
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cbi->use++;
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/* make sure no store/load reordering could happen */
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rte_smp_mb();
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}
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/*
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* Marks given callback list as not used by datapath.
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*/
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static __rte_always_inline void
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bpf_eth_cbi_unuse(struct bpf_eth_cbi *cbi)
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{
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/* make sure all previous loads are completed */
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rte_smp_rmb();
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cbi->use++;
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}
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/*
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* Waits till datapath finished using given callback.
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*/
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static void
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bpf_eth_cbi_wait(const struct bpf_eth_cbi *cbi)
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{
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uint32_t nuse, puse;
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/* make sure all previous loads and stores are completed */
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rte_smp_mb();
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puse = cbi->use;
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/* in use, busy wait till current RX/TX iteration is finished */
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if ((puse & BPF_ETH_CBI_INUSE) != 0) {
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do {
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rte_pause();
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rte_compiler_barrier();
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nuse = cbi->use;
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} while (nuse == puse);
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}
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}
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static void
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bpf_eth_cbi_cleanup(struct bpf_eth_cbi *bc)
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{
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bc->bpf = NULL;
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memset(&bc->jit, 0, sizeof(bc->jit));
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}
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static struct bpf_eth_cbi *
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bpf_eth_cbh_find(struct bpf_eth_cbh *cbh, uint16_t port, uint16_t queue)
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{
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struct bpf_eth_cbi *cbi;
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LIST_FOREACH(cbi, &cbh->list, link) {
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if (cbi->port == port && cbi->queue == queue)
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break;
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}
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return cbi;
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}
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static struct bpf_eth_cbi *
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bpf_eth_cbh_add(struct bpf_eth_cbh *cbh, uint16_t port, uint16_t queue)
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{
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struct bpf_eth_cbi *cbi;
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/* return an existing one */
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cbi = bpf_eth_cbh_find(cbh, port, queue);
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if (cbi != NULL)
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return cbi;
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cbi = rte_zmalloc(NULL, sizeof(*cbi), RTE_CACHE_LINE_SIZE);
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if (cbi != NULL) {
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cbi->port = port;
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cbi->queue = queue;
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LIST_INSERT_HEAD(&cbh->list, cbi, link);
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}
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return cbi;
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}
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/*
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* BPF packet processing routinies.
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*/
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static inline uint32_t
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apply_filter(struct rte_mbuf *mb[], const uint64_t rc[], uint32_t num,
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uint32_t drop)
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{
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uint32_t i, j, k;
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struct rte_mbuf *dr[num];
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for (i = 0, j = 0, k = 0; i != num; i++) {
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/* filter matches */
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if (rc[i] != 0)
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mb[j++] = mb[i];
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/* no match */
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else
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dr[k++] = mb[i];
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}
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if (drop != 0) {
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/* free filtered out mbufs */
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for (i = 0; i != k; i++)
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rte_pktmbuf_free(dr[i]);
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} else {
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/* copy filtered out mbufs beyond good ones */
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for (i = 0; i != k; i++)
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mb[j + i] = dr[i];
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}
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return j;
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}
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static inline uint32_t
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pkt_filter_vm(const struct rte_bpf *bpf, struct rte_mbuf *mb[], uint32_t num,
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uint32_t drop)
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{
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uint32_t i;
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void *dp[num];
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uint64_t rc[num];
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for (i = 0; i != num; i++)
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dp[i] = rte_pktmbuf_mtod(mb[i], void *);
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rte_bpf_exec_burst(bpf, dp, rc, num);
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return apply_filter(mb, rc, num, drop);
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}
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static inline uint32_t
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pkt_filter_jit(const struct rte_bpf_jit *jit, struct rte_mbuf *mb[],
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uint32_t num, uint32_t drop)
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{
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uint32_t i, n;
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void *dp;
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uint64_t rc[num];
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n = 0;
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for (i = 0; i != num; i++) {
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dp = rte_pktmbuf_mtod(mb[i], void *);
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rc[i] = jit->func(dp);
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n += (rc[i] == 0);
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}
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if (n != 0)
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num = apply_filter(mb, rc, num, drop);
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return num;
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}
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static inline uint32_t
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pkt_filter_mb_vm(const struct rte_bpf *bpf, struct rte_mbuf *mb[], uint32_t num,
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uint32_t drop)
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{
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uint64_t rc[num];
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rte_bpf_exec_burst(bpf, (void **)mb, rc, num);
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return apply_filter(mb, rc, num, drop);
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}
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static inline uint32_t
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pkt_filter_mb_jit(const struct rte_bpf_jit *jit, struct rte_mbuf *mb[],
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uint32_t num, uint32_t drop)
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{
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uint32_t i, n;
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uint64_t rc[num];
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n = 0;
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for (i = 0; i != num; i++) {
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rc[i] = jit->func(mb[i]);
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n += (rc[i] == 0);
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}
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if (n != 0)
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num = apply_filter(mb, rc, num, drop);
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return num;
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}
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/*
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* RX/TX callbacks for raw data bpf.
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*/
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static uint16_t
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bpf_rx_callback_vm(__rte_unused uint16_t port, __rte_unused uint16_t queue,
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struct rte_mbuf *pkt[], uint16_t nb_pkts,
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__rte_unused uint16_t max_pkts, void *user_param)
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{
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struct bpf_eth_cbi *cbi;
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uint16_t rc;
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cbi = user_param;
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bpf_eth_cbi_inuse(cbi);
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rc = (cbi->cb != NULL) ?
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pkt_filter_vm(cbi->bpf, pkt, nb_pkts, 1) :
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nb_pkts;
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bpf_eth_cbi_unuse(cbi);
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return rc;
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}
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static uint16_t
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bpf_rx_callback_jit(__rte_unused uint16_t port, __rte_unused uint16_t queue,
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struct rte_mbuf *pkt[], uint16_t nb_pkts,
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__rte_unused uint16_t max_pkts, void *user_param)
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{
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struct bpf_eth_cbi *cbi;
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uint16_t rc;
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cbi = user_param;
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bpf_eth_cbi_inuse(cbi);
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rc = (cbi->cb != NULL) ?
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pkt_filter_jit(&cbi->jit, pkt, nb_pkts, 1) :
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nb_pkts;
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bpf_eth_cbi_unuse(cbi);
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return rc;
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}
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static uint16_t
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bpf_tx_callback_vm(__rte_unused uint16_t port, __rte_unused uint16_t queue,
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struct rte_mbuf *pkt[], uint16_t nb_pkts, void *user_param)
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{
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struct bpf_eth_cbi *cbi;
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uint16_t rc;
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cbi = user_param;
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bpf_eth_cbi_inuse(cbi);
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rc = (cbi->cb != NULL) ?
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pkt_filter_vm(cbi->bpf, pkt, nb_pkts, 0) :
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nb_pkts;
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bpf_eth_cbi_unuse(cbi);
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return rc;
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}
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static uint16_t
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bpf_tx_callback_jit(__rte_unused uint16_t port, __rte_unused uint16_t queue,
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struct rte_mbuf *pkt[], uint16_t nb_pkts, void *user_param)
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{
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struct bpf_eth_cbi *cbi;
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uint16_t rc;
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cbi = user_param;
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bpf_eth_cbi_inuse(cbi);
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rc = (cbi->cb != NULL) ?
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pkt_filter_jit(&cbi->jit, pkt, nb_pkts, 0) :
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nb_pkts;
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bpf_eth_cbi_unuse(cbi);
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return rc;
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}
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/*
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* RX/TX callbacks for mbuf.
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*/
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static uint16_t
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bpf_rx_callback_mb_vm(__rte_unused uint16_t port, __rte_unused uint16_t queue,
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struct rte_mbuf *pkt[], uint16_t nb_pkts,
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__rte_unused uint16_t max_pkts, void *user_param)
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{
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struct bpf_eth_cbi *cbi;
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uint16_t rc;
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cbi = user_param;
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bpf_eth_cbi_inuse(cbi);
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rc = (cbi->cb != NULL) ?
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pkt_filter_mb_vm(cbi->bpf, pkt, nb_pkts, 1) :
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nb_pkts;
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bpf_eth_cbi_unuse(cbi);
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return rc;
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}
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static uint16_t
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bpf_rx_callback_mb_jit(__rte_unused uint16_t port, __rte_unused uint16_t queue,
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struct rte_mbuf *pkt[], uint16_t nb_pkts,
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__rte_unused uint16_t max_pkts, void *user_param)
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{
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struct bpf_eth_cbi *cbi;
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uint16_t rc;
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cbi = user_param;
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bpf_eth_cbi_inuse(cbi);
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rc = (cbi->cb != NULL) ?
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pkt_filter_mb_jit(&cbi->jit, pkt, nb_pkts, 1) :
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nb_pkts;
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bpf_eth_cbi_unuse(cbi);
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return rc;
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}
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static uint16_t
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bpf_tx_callback_mb_vm(__rte_unused uint16_t port, __rte_unused uint16_t queue,
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struct rte_mbuf *pkt[], uint16_t nb_pkts, void *user_param)
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{
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struct bpf_eth_cbi *cbi;
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uint16_t rc;
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cbi = user_param;
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bpf_eth_cbi_inuse(cbi);
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rc = (cbi->cb != NULL) ?
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pkt_filter_mb_vm(cbi->bpf, pkt, nb_pkts, 0) :
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nb_pkts;
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bpf_eth_cbi_unuse(cbi);
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return rc;
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}
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static uint16_t
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bpf_tx_callback_mb_jit(__rte_unused uint16_t port, __rte_unused uint16_t queue,
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struct rte_mbuf *pkt[], uint16_t nb_pkts, void *user_param)
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{
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struct bpf_eth_cbi *cbi;
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uint16_t rc;
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cbi = user_param;
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bpf_eth_cbi_inuse(cbi);
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rc = (cbi->cb != NULL) ?
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pkt_filter_mb_jit(&cbi->jit, pkt, nb_pkts, 0) :
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nb_pkts;
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bpf_eth_cbi_unuse(cbi);
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return rc;
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}
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static rte_rx_callback_fn
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select_rx_callback(enum rte_bpf_arg_type type, uint32_t flags)
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{
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if (flags & RTE_BPF_ETH_F_JIT) {
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if (type == RTE_BPF_ARG_PTR)
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return bpf_rx_callback_jit;
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else if (type == RTE_BPF_ARG_PTR_MBUF)
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return bpf_rx_callback_mb_jit;
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} else if (type == RTE_BPF_ARG_PTR)
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return bpf_rx_callback_vm;
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else if (type == RTE_BPF_ARG_PTR_MBUF)
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return bpf_rx_callback_mb_vm;
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return NULL;
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}
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static rte_tx_callback_fn
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select_tx_callback(enum rte_bpf_arg_type type, uint32_t flags)
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{
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if (flags & RTE_BPF_ETH_F_JIT) {
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if (type == RTE_BPF_ARG_PTR)
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return bpf_tx_callback_jit;
|
||||
else if (type == RTE_BPF_ARG_PTR_MBUF)
|
||||
return bpf_tx_callback_mb_jit;
|
||||
} else if (type == RTE_BPF_ARG_PTR)
|
||||
return bpf_tx_callback_vm;
|
||||
else if (type == RTE_BPF_ARG_PTR_MBUF)
|
||||
return bpf_tx_callback_mb_vm;
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/*
|
||||
* helper function to perform BPF unload for given port/queue.
|
||||
* have to introduce extra complexity (and possible slowdown) here,
|
||||
* as right now there is no safe generic way to remove RX/TX callback
|
||||
* while IO is active.
|
||||
* Still don't free memory allocated for callback handle itself,
|
||||
* again right now there is no safe way to do that without stopping RX/TX
|
||||
* on given port/queue first.
|
||||
*/
|
||||
static void
|
||||
bpf_eth_cbi_unload(struct bpf_eth_cbi *bc)
|
||||
{
|
||||
/* mark this cbi as empty */
|
||||
bc->cb = NULL;
|
||||
rte_smp_mb();
|
||||
|
||||
/* make sure datapath doesn't use bpf anymore, then destroy bpf */
|
||||
bpf_eth_cbi_wait(bc);
|
||||
rte_bpf_destroy(bc->bpf);
|
||||
bpf_eth_cbi_cleanup(bc);
|
||||
}
|
||||
|
||||
static void
|
||||
bpf_eth_unload(struct bpf_eth_cbh *cbh, uint16_t port, uint16_t queue)
|
||||
{
|
||||
struct bpf_eth_cbi *bc;
|
||||
|
||||
bc = bpf_eth_cbh_find(cbh, port, queue);
|
||||
if (bc == NULL || bc->cb == NULL)
|
||||
return;
|
||||
|
||||
if (cbh->type == BPF_ETH_RX)
|
||||
rte_eth_remove_rx_callback(port, queue, bc->cb);
|
||||
else
|
||||
rte_eth_remove_tx_callback(port, queue, bc->cb);
|
||||
|
||||
bpf_eth_cbi_unload(bc);
|
||||
}
|
||||
|
||||
|
||||
__rte_experimental void
|
||||
rte_bpf_eth_rx_unload(uint16_t port, uint16_t queue)
|
||||
{
|
||||
struct bpf_eth_cbh *cbh;
|
||||
|
||||
cbh = &rx_cbh;
|
||||
rte_spinlock_lock(&cbh->lock);
|
||||
bpf_eth_unload(cbh, port, queue);
|
||||
rte_spinlock_unlock(&cbh->lock);
|
||||
}
|
||||
|
||||
__rte_experimental void
|
||||
rte_bpf_eth_tx_unload(uint16_t port, uint16_t queue)
|
||||
{
|
||||
struct bpf_eth_cbh *cbh;
|
||||
|
||||
cbh = &tx_cbh;
|
||||
rte_spinlock_lock(&cbh->lock);
|
||||
bpf_eth_unload(cbh, port, queue);
|
||||
rte_spinlock_unlock(&cbh->lock);
|
||||
}
|
||||
|
||||
static int
|
||||
bpf_eth_elf_load(struct bpf_eth_cbh *cbh, uint16_t port, uint16_t queue,
|
||||
const struct rte_bpf_prm *prm, const char *fname, const char *sname,
|
||||
uint32_t flags)
|
||||
{
|
||||
int32_t rc;
|
||||
struct bpf_eth_cbi *bc;
|
||||
struct rte_bpf *bpf;
|
||||
rte_rx_callback_fn frx;
|
||||
rte_tx_callback_fn ftx;
|
||||
struct rte_bpf_jit jit;
|
||||
|
||||
frx = NULL;
|
||||
ftx = NULL;
|
||||
|
||||
if (prm == NULL || rte_eth_dev_is_valid_port(port) == 0 ||
|
||||
queue >= RTE_MAX_QUEUES_PER_PORT)
|
||||
return -EINVAL;
|
||||
|
||||
if (cbh->type == BPF_ETH_RX)
|
||||
frx = select_rx_callback(prm->prog_arg.type, flags);
|
||||
else
|
||||
ftx = select_tx_callback(prm->prog_arg.type, flags);
|
||||
|
||||
if (frx == NULL && ftx == NULL) {
|
||||
RTE_BPF_LOG(ERR, "%s(%u, %u): no callback selected;\n",
|
||||
__func__, port, queue);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
bpf = rte_bpf_elf_load(prm, fname, sname);
|
||||
if (bpf == NULL)
|
||||
return -rte_errno;
|
||||
|
||||
rte_bpf_get_jit(bpf, &jit);
|
||||
|
||||
if ((flags & RTE_BPF_ETH_F_JIT) != 0 && jit.func == NULL) {
|
||||
RTE_BPF_LOG(ERR, "%s(%u, %u): no JIT generated;\n",
|
||||
__func__, port, queue);
|
||||
rte_bpf_destroy(bpf);
|
||||
return -ENOTSUP;
|
||||
}
|
||||
|
||||
/* setup/update global callback info */
|
||||
bc = bpf_eth_cbh_add(cbh, port, queue);
|
||||
if (bc == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
/* remove old one, if any */
|
||||
if (bc->cb != NULL)
|
||||
bpf_eth_unload(cbh, port, queue);
|
||||
|
||||
bc->bpf = bpf;
|
||||
bc->jit = jit;
|
||||
|
||||
if (cbh->type == BPF_ETH_RX)
|
||||
bc->cb = rte_eth_add_rx_callback(port, queue, frx, bc);
|
||||
else
|
||||
bc->cb = rte_eth_add_tx_callback(port, queue, ftx, bc);
|
||||
|
||||
if (bc->cb == NULL) {
|
||||
rc = -rte_errno;
|
||||
rte_bpf_destroy(bpf);
|
||||
bpf_eth_cbi_cleanup(bc);
|
||||
} else
|
||||
rc = 0;
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
__rte_experimental int
|
||||
rte_bpf_eth_rx_elf_load(uint16_t port, uint16_t queue,
|
||||
const struct rte_bpf_prm *prm, const char *fname, const char *sname,
|
||||
uint32_t flags)
|
||||
{
|
||||
int32_t rc;
|
||||
struct bpf_eth_cbh *cbh;
|
||||
|
||||
cbh = &rx_cbh;
|
||||
rte_spinlock_lock(&cbh->lock);
|
||||
rc = bpf_eth_elf_load(cbh, port, queue, prm, fname, sname, flags);
|
||||
rte_spinlock_unlock(&cbh->lock);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
__rte_experimental int
|
||||
rte_bpf_eth_tx_elf_load(uint16_t port, uint16_t queue,
|
||||
const struct rte_bpf_prm *prm, const char *fname, const char *sname,
|
||||
uint32_t flags)
|
||||
{
|
||||
int32_t rc;
|
||||
struct bpf_eth_cbh *cbh;
|
||||
|
||||
cbh = &tx_cbh;
|
||||
rte_spinlock_lock(&cbh->lock);
|
||||
rc = bpf_eth_elf_load(cbh, port, queue, prm, fname, sname, flags);
|
||||
rte_spinlock_unlock(&cbh->lock);
|
||||
|
||||
return rc;
|
||||
}
|
||||
@ -5,6 +5,7 @@ allow_experimental_apis = true
|
||||
sources = files('bpf.c',
|
||||
'bpf_exec.c',
|
||||
'bpf_load.c',
|
||||
'bpf_pkt.c',
|
||||
'bpf_validate.c')
|
||||
|
||||
if arch_subdir == 'x86'
|
||||
@ -12,9 +13,10 @@ if arch_subdir == 'x86'
|
||||
endif
|
||||
|
||||
install_headers = files('bpf_def.h',
|
||||
'rte_bpf.h')
|
||||
'rte_bpf.h',
|
||||
'rte_bpf_ethdev.h')
|
||||
|
||||
deps += ['mbuf', 'net']
|
||||
deps += ['mbuf', 'net', 'ethdev']
|
||||
|
||||
dep = cc.find_library('elf', required: false)
|
||||
if dep.found() == true and cc.has_header('libelf.h', dependencies: dep)
|
||||
|
||||
112
lib/librte_bpf/rte_bpf_ethdev.h
Normal file
112
lib/librte_bpf/rte_bpf_ethdev.h
Normal file
@ -0,0 +1,112 @@
|
||||
/* SPDX-License-Identifier: BSD-3-Clause
|
||||
* Copyright(c) 2018 Intel Corporation
|
||||
*/
|
||||
|
||||
#ifndef _RTE_BPF_ETHDEV_H_
|
||||
#define _RTE_BPF_ETHDEV_H_
|
||||
|
||||
/**
|
||||
* @file
|
||||
*
|
||||
* API to install BPF filter as RX/TX callbacks for eth devices.
|
||||
* Note that right now:
|
||||
* - it is not MT safe, i.e. it is not allowed to do load/unload for the
|
||||
* same port/queue from different threads in parallel.
|
||||
* - though it allows to do load/unload at runtime
|
||||
* (while RX/TX is ongoing on given port/queue).
|
||||
* - allows only one BPF program per port/queue,
|
||||
* i.e. new load will replace previously loaded for that port/queue BPF program.
|
||||
* Filter behaviour - if BPF program returns zero value for a given packet,
|
||||
* then it will be dropped inside callback and no further processing
|
||||
* on RX - it will be dropped inside callback and no further processing
|
||||
* for that packet will happen.
|
||||
* on TX - packet will remain unsent, and it is responsibility of the user
|
||||
* to handle such situation (drop, try to send again, etc.).
|
||||
*/
|
||||
|
||||
#include <rte_bpf.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
enum {
|
||||
RTE_BPF_ETH_F_NONE = 0,
|
||||
RTE_BPF_ETH_F_JIT = 0x1, /*< use compiled into native ISA code */
|
||||
};
|
||||
|
||||
/**
|
||||
* Unload previously loaded BPF program (if any) from given RX port/queue
|
||||
* and remove appropriate RX port/queue callback.
|
||||
*
|
||||
* @param port
|
||||
* The identifier of the ethernet port
|
||||
* @param queue
|
||||
* The identifier of the RX queue on the given port
|
||||
*/
|
||||
void rte_bpf_eth_rx_unload(uint16_t port, uint16_t queue);
|
||||
|
||||
/**
|
||||
* Unload previously loaded BPF program (if any) from given TX port/queue
|
||||
* and remove appropriate TX port/queue callback.
|
||||
*
|
||||
* @param port
|
||||
* The identifier of the ethernet port
|
||||
* @param queue
|
||||
* The identifier of the TX queue on the given port
|
||||
*/
|
||||
void rte_bpf_eth_tx_unload(uint16_t port, uint16_t queue);
|
||||
|
||||
/**
|
||||
* Load BPF program from the ELF file and install callback to execute it
|
||||
* on given RX port/queue.
|
||||
*
|
||||
* @param port
|
||||
* The identifier of the ethernet port
|
||||
* @param queue
|
||||
* The identifier of the RX queue on the given port
|
||||
* @param fname
|
||||
* Pathname for a ELF file.
|
||||
* @param sname
|
||||
* Name of the executable section within the file to load.
|
||||
* @param prm
|
||||
* Parameters used to create and initialise the BPF exeution context.
|
||||
* @param flags
|
||||
* Flags that define expected expected behavior of the loaded filter
|
||||
* (i.e. jited/non-jited version to use).
|
||||
* @return
|
||||
* Zero on successful completion or negative error code otherwise.
|
||||
*/
|
||||
int rte_bpf_eth_rx_elf_load(uint16_t port, uint16_t queue,
|
||||
const struct rte_bpf_prm *prm, const char *fname, const char *sname,
|
||||
uint32_t flags);
|
||||
|
||||
/**
|
||||
* Load BPF program from the ELF file and install callback to execute it
|
||||
* on given TX port/queue.
|
||||
*
|
||||
* @param port
|
||||
* The identifier of the ethernet port
|
||||
* @param queue
|
||||
* The identifier of the TX queue on the given port
|
||||
* @param fname
|
||||
* Pathname for a ELF file.
|
||||
* @param sname
|
||||
* Name of the executable section within the file to load.
|
||||
* @param prm
|
||||
* Parameters used to create and initialise the BPF exeution context.
|
||||
* @param flags
|
||||
* Flags that define expected expected behavior of the loaded filter
|
||||
* (i.e. jited/non-jited version to use).
|
||||
* @return
|
||||
* Zero on successful completion or negative error code otherwise.
|
||||
*/
|
||||
int rte_bpf_eth_tx_elf_load(uint16_t port, uint16_t queue,
|
||||
const struct rte_bpf_prm *prm, const char *fname, const char *sname,
|
||||
uint32_t flags);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _RTE_BPF_ETHDEV_H_ */
|
||||
@ -3,6 +3,10 @@ EXPERIMENTAL {
|
||||
|
||||
rte_bpf_destroy;
|
||||
rte_bpf_elf_load;
|
||||
rte_bpf_eth_rx_elf_load;
|
||||
rte_bpf_eth_rx_unload;
|
||||
rte_bpf_eth_tx_elf_load;
|
||||
rte_bpf_eth_tx_unload;
|
||||
rte_bpf_exec;
|
||||
rte_bpf_exec_burst;
|
||||
rte_bpf_get_jit;
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user