72512e1897
The new mbuf pool type is added to testpmd. To engage the mbuf pool with externally attached data buffers the parameter "--mp-alloc=xbuf" should be specified in testpmd command line. The objective of this patch is just to test whether mbuf pool with externally attached data buffers works OK. The memory for data buffers is allocated from DPDK memory, so this is not "true" external memory from some physical device (this is supposed the most common use case for such kind of mbuf pool). The user should be aware that not all drivers support the mbuf with EXT_ATTACHED_BUF flags set in newly allocated mbuf (many PMDs just overwrite ol_flags field and flag value is getting lost). Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com> Acked-by: Olivier Matz <olivier.matz@6wind.com>
253 lines
7.5 KiB
C
253 lines
7.5 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2013 Tilera Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Tilera Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <stdarg.h>
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#include <string.h>
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#include <stdio.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/queue.h>
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#include <sys/stat.h>
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#include <rte_common.h>
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#include <rte_byteorder.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_memory.h>
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#include <rte_memcpy.h>
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#include <rte_launch.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_branch_prediction.h>
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#include <rte_mempool.h>
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#include <rte_mbuf.h>
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#include <rte_interrupts.h>
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#include <rte_pci.h>
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#include <rte_ether.h>
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#include <rte_ethdev.h>
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#include <rte_ip.h>
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#include <rte_tcp.h>
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#include <rte_udp.h>
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#include <rte_string_fns.h>
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#include <rte_flow.h>
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#include "testpmd.h"
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/* hardcoded configuration (for now) */
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static unsigned cfg_n_flows = 1024;
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static uint32_t cfg_ip_src = RTE_IPV4(10, 254, 0, 0);
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static uint32_t cfg_ip_dst = RTE_IPV4(10, 253, 0, 0);
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static uint16_t cfg_udp_src = 1000;
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static uint16_t cfg_udp_dst = 1001;
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static struct rte_ether_addr cfg_ether_src =
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{{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x00 }};
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static struct rte_ether_addr cfg_ether_dst =
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{{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x01 }};
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#define IP_DEFTTL 64 /* from RFC 1340. */
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static inline uint16_t
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ip_sum(const unaligned_uint16_t *hdr, int hdr_len)
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{
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uint32_t sum = 0;
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while (hdr_len > 1)
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{
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sum += *hdr++;
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if (sum & 0x80000000)
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sum = (sum & 0xFFFF) + (sum >> 16);
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hdr_len -= 2;
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}
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while (sum >> 16)
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sum = (sum & 0xFFFF) + (sum >> 16);
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return ~sum;
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}
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/*
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* Multi-flow generation mode.
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*
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* We originate a bunch of flows (varying destination IP addresses), and
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* terminate receive traffic. Received traffic is simply discarded, but we
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* still do so in order to maintain traffic statistics.
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*/
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static void
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pkt_burst_flow_gen(struct fwd_stream *fs)
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{
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unsigned pkt_size = tx_pkt_length - 4; /* Adjust FCS */
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struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
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struct rte_mempool *mbp;
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struct rte_mbuf *pkt;
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struct rte_ether_hdr *eth_hdr;
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struct rte_ipv4_hdr *ip_hdr;
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struct rte_udp_hdr *udp_hdr;
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uint16_t vlan_tci, vlan_tci_outer;
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uint64_t ol_flags = 0;
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uint16_t nb_rx;
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uint16_t nb_tx;
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uint16_t nb_pkt;
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uint16_t i;
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uint32_t retry;
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uint64_t tx_offloads;
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#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
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uint64_t start_tsc;
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uint64_t end_tsc;
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uint64_t core_cycles;
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#endif
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static int next_flow = 0;
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#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
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start_tsc = rte_rdtsc();
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#endif
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/* Receive a burst of packets and discard them. */
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nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
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nb_pkt_per_burst);
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fs->rx_packets += nb_rx;
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for (i = 0; i < nb_rx; i++)
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rte_pktmbuf_free(pkts_burst[i]);
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mbp = current_fwd_lcore()->mbp;
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vlan_tci = ports[fs->tx_port].tx_vlan_id;
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vlan_tci_outer = ports[fs->tx_port].tx_vlan_id_outer;
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tx_offloads = ports[fs->tx_port].dev_conf.txmode.offloads;
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if (tx_offloads & DEV_TX_OFFLOAD_VLAN_INSERT)
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ol_flags |= PKT_TX_VLAN_PKT;
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if (tx_offloads & DEV_TX_OFFLOAD_QINQ_INSERT)
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ol_flags |= PKT_TX_QINQ_PKT;
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if (tx_offloads & DEV_TX_OFFLOAD_MACSEC_INSERT)
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ol_flags |= PKT_TX_MACSEC;
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for (nb_pkt = 0; nb_pkt < nb_pkt_per_burst; nb_pkt++) {
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pkt = rte_mbuf_raw_alloc(mbp);
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if (!pkt)
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break;
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pkt->data_len = pkt_size;
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pkt->next = NULL;
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/* Initialize Ethernet header. */
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eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
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rte_ether_addr_copy(&cfg_ether_dst, ð_hdr->d_addr);
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rte_ether_addr_copy(&cfg_ether_src, ð_hdr->s_addr);
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eth_hdr->ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
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/* Initialize IP header. */
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ip_hdr = (struct rte_ipv4_hdr *)(eth_hdr + 1);
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memset(ip_hdr, 0, sizeof(*ip_hdr));
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ip_hdr->version_ihl = RTE_IPV4_VHL_DEF;
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ip_hdr->type_of_service = 0;
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ip_hdr->fragment_offset = 0;
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ip_hdr->time_to_live = IP_DEFTTL;
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ip_hdr->next_proto_id = IPPROTO_UDP;
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ip_hdr->packet_id = 0;
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ip_hdr->src_addr = rte_cpu_to_be_32(cfg_ip_src);
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ip_hdr->dst_addr = rte_cpu_to_be_32(cfg_ip_dst +
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next_flow);
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ip_hdr->total_length = RTE_CPU_TO_BE_16(pkt_size -
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sizeof(*eth_hdr));
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ip_hdr->hdr_checksum = ip_sum((unaligned_uint16_t *)ip_hdr,
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sizeof(*ip_hdr));
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/* Initialize UDP header. */
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udp_hdr = (struct rte_udp_hdr *)(ip_hdr + 1);
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udp_hdr->src_port = rte_cpu_to_be_16(cfg_udp_src);
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udp_hdr->dst_port = rte_cpu_to_be_16(cfg_udp_dst);
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udp_hdr->dgram_cksum = 0; /* No UDP checksum. */
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udp_hdr->dgram_len = RTE_CPU_TO_BE_16(pkt_size -
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sizeof(*eth_hdr) -
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sizeof(*ip_hdr));
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pkt->nb_segs = 1;
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pkt->pkt_len = pkt_size;
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pkt->ol_flags &= EXT_ATTACHED_MBUF;
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pkt->ol_flags |= ol_flags;
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pkt->vlan_tci = vlan_tci;
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pkt->vlan_tci_outer = vlan_tci_outer;
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pkt->l2_len = sizeof(struct rte_ether_hdr);
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pkt->l3_len = sizeof(struct rte_ipv4_hdr);
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pkts_burst[nb_pkt] = pkt;
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next_flow = (next_flow + 1) % cfg_n_flows;
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}
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nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_pkt);
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/*
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* Retry if necessary
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*/
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if (unlikely(nb_tx < nb_rx) && fs->retry_enabled) {
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retry = 0;
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while (nb_tx < nb_rx && retry++ < burst_tx_retry_num) {
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rte_delay_us(burst_tx_delay_time);
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nb_tx += rte_eth_tx_burst(fs->tx_port, fs->tx_queue,
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&pkts_burst[nb_tx], nb_rx - nb_tx);
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}
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}
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fs->tx_packets += nb_tx;
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#ifdef RTE_TEST_PMD_RECORD_BURST_STATS
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fs->tx_burst_stats.pkt_burst_spread[nb_tx]++;
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#endif
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if (unlikely(nb_tx < nb_pkt)) {
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/* Back out the flow counter. */
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next_flow -= (nb_pkt - nb_tx);
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while (next_flow < 0)
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next_flow += cfg_n_flows;
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do {
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rte_pktmbuf_free(pkts_burst[nb_tx]);
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} while (++nb_tx < nb_pkt);
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}
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#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
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end_tsc = rte_rdtsc();
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core_cycles = (end_tsc - start_tsc);
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fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
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#endif
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}
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struct fwd_engine flow_gen_engine = {
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.fwd_mode_name = "flowgen",
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.port_fwd_begin = NULL,
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.port_fwd_end = NULL,
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.packet_fwd = pkt_burst_flow_gen,
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};
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