mirror of
https://github.com/scylladb/scylladb.git
synced 2026-04-21 17:10:35 +00:00
06565c80d5
- Allocate the data buffers instead of using the default inline rte_mbuf
layout.
- Implement an rx_gc() and add an _rx_gc_poller to call it: we will refill
the rx mbuf's when at least 64 free buffers.
This threshold has been chosen as a sane enough number.
- Introduce the mbuf_data_size == 4K. Allocate 4K buffers for a detached flow.
We are still going to allocate 2K data buffers for an inline case since 4K
buffers would require 2 pages per mbuf due to "mbuf_overhead".
Signed-off-by: Vlad Zolotarov <vladz@cloudius-systems.com>
98 lines
3.3 KiB
C++
98 lines
3.3 KiB
C++
/*
|
|
* This file is open source software, licensed to you under the terms
|
|
* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
|
|
* distributed with this work for additional information regarding copyright
|
|
* ownership. 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 DPDK_RTE_HH_
|
|
#define DPDK_RTE_HH_
|
|
|
|
#ifdef HAVE_DPDK
|
|
|
|
#include <bitset>
|
|
#include <rte_config.h>
|
|
#include <rte_ethdev.h>
|
|
#include <rte_version.h>
|
|
#include <boost/program_options.hpp>
|
|
|
|
/*********************** Compat section ***************************************/
|
|
// We currently support only versions 1.7 and above.
|
|
// So, since currently the only above version is 1.8.x we will use it as "else"
|
|
// of ver. 1.7.x.
|
|
#if (RTE_VERSION >= RTE_VERSION_NUM(1,7,0,0)) && \
|
|
(RTE_VERSION < RTE_VERSION_NUM(1,8,0,0))
|
|
#define RTE_VERSION_1_7
|
|
#endif
|
|
|
|
#ifdef RTE_VERSION_1_7
|
|
#if defined(RTE_LIBRTE_PMD_BOND) || defined(RTE_MBUF_SCATTER_GATHER) || \
|
|
defined(RTE_LIBRTE_IP_FRAG)
|
|
#error "RTE_LIBRTE_PMD_BOND, RTE_MBUF_SCATTER_GATHER," \
|
|
"and RTE_LIBRTE_IP_FRAG should be disabled in DPDK's " \
|
|
"config/common_linuxapp"
|
|
#endif
|
|
|
|
#define rte_mbuf_vlan_tci(m) ((m)->pkt.vlan_macip.f.vlan_tci)
|
|
#define rte_mbuf_rss_hash(m) ((m)->pkt.hash.rss)
|
|
#define rte_mbuf_data_len(m) ((m)->pkt.data_len)
|
|
#define rte_mbuf_pkt_len(m) ((m)->pkt.pkt_len)
|
|
#define rte_mbuf_next(m) ((m)->pkt.next)
|
|
#define rte_mbuf_nb_segs(m) ((m)->pkt.nb_segs)
|
|
#define rte_mbuf_l2_len(m) ((m)->pkt.vlan_macip.f.l2_len)
|
|
#define rte_mbuf_l3_len(m) ((m)->pkt.vlan_macip.f.l3_len)
|
|
#define rte_mbuf_buf_addr(m) ((m)->buf_addr)
|
|
#define rte_mbuf_buf_physaddr(m) ((m)->buf_physaddr)
|
|
#define rte_mbuf_buf_len(m) ((m)->buf_len)
|
|
#else
|
|
#if defined(RTE_MBUF_REFCNT)
|
|
#error "RTE_MBUF_REFCNT should be disabled in DPDK's config/common_linuxapp"
|
|
#endif
|
|
#define rte_mbuf_vlan_tci(m) ((m)->vlan_tci)
|
|
#define rte_mbuf_rss_hash(m) ((m)->hash.rss)
|
|
#define rte_mbuf_data_len(m) ((m)->data_len)
|
|
#define rte_mbuf_pkt_len(m) ((m)->pkt_len)
|
|
#define rte_mbuf_next(m) ((m)->next)
|
|
#define rte_mbuf_nb_segs(m) ((m)->nb_segs)
|
|
#define rte_mbuf_l2_len(m) ((m)->l2_len)
|
|
#define rte_mbuf_l3_len(m) ((m)->l3_len)
|
|
#define rte_mbuf_buf_addr(m) ((m)->buf_addr)
|
|
#define rte_mbuf_buf_physaddr(m) ((m)->buf_physaddr)
|
|
#define rte_mbuf_buf_len(m) ((m)->buf_len)
|
|
|
|
#endif
|
|
|
|
/******************************************************************************/
|
|
|
|
namespace dpdk {
|
|
|
|
// DPDK Environment Abstraction Layer
|
|
class eal {
|
|
public:
|
|
using cpuset = std::bitset<RTE_MAX_LCORE>;
|
|
|
|
static void init(cpuset cpus, boost::program_options::variables_map opts);
|
|
/**
|
|
* Returns the amount of memory needed for DPDK
|
|
* @param num_cpus Number of CPUs the application is going to use
|
|
*
|
|
* @return
|
|
*/
|
|
static size_t mem_size(int num_cpus, bool hugetlbfs_membackend = true);
|
|
static bool initialized;
|
|
};
|
|
|
|
} // namespace dpdk
|
|
#endif // HAVE_DPDK
|
|
#endif // DPDK_RTE_HH_
|