projects / ceph.git / blame
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|---|---|---|
| 11fdf7f2 TL |
1 | /* |
| 2 | * This file is open source software, licensed to you under the terms | |
| 3 | * of the Apache License, Version 2.0 (the "License"). See the NOTICE file | |
| 4 | * distributed with this work for additional information regarding copyright | |
| 5 | * ownership. You may not use this file except in compliance with the License. | |
| 6 | * | |
| 7 | * You may obtain a copy of the License at | |
| 8 | * | |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 | * | |
| 11 | * Unless required by applicable law or agreed to in writing, | |
| 12 | * software distributed under the License is distributed on an | |
| 13 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 14 | * KIND, either express or implied. See the License for the | |
| 15 | * specific language governing permissions and limitations | |
| 16 | * under the License. | |
| 17 | */ | |
| 18 | #pragma once | |
| 19 | ||
| 20 | #ifdef SEASTAR_HAVE_DPDK | |
| 21 | ||
| 22 | #include <bitset> | |
| 23 | #include <rte_config.h> | |
| 24 | #include <rte_ethdev.h> | |
| 25 | #include <rte_version.h> | |
| 11fdf7f2 TL |
26 | |
| 27 | /*********************** Compat section ***************************************/ | |
| 28 | // We currently support only versions 2.0 and above. | |
| 29 | #if (RTE_VERSION < RTE_VERSION_NUM(2,0,0,0)) | |
| 30 | #error "DPDK version above 2.0.0 is required" | |
| 31 | #endif | |
| 32 | ||
| 33 | #if defined(RTE_MBUF_REFCNT_ATOMIC) | |
| 34 | #warning "CONFIG_RTE_MBUF_REFCNT_ATOMIC should be disabled in DPDK's " \ | |
| 35 | "config/common_linuxapp" | |
| 36 | #endif | |
| 37 | /******************************************************************************/ | |
| 38 | ||
| 39 | namespace seastar { | |
| 40 | ||
| 41 | namespace dpdk { | |
| 42 | ||
| 43 | // DPDK Environment Abstraction Layer | |
| 44 | class eal { | |
| 45 | public: | |
| 46 | using cpuset = std::bitset<RTE_MAX_LCORE>; | |
| 47 | ||
| 20effc67 | 48 | static void init(cpuset cpus, const std::string& argv0, const std::optional<std::string>& hugepages_path, bool dpdk_pmd); |
| 11fdf7f2 TL |
49 | /** |
| 50 | * Returns the amount of memory needed for DPDK | |
| 51 | * @param num_cpus Number of CPUs the application is going to use | |
| 52 | * | |
| 53 | * @return | |
| 54 | */ | |
| 55 | static size_t mem_size(int num_cpus, bool hugetlbfs_membackend = true); | |
| 56 | static bool initialized; | |
| 57 | }; | |
| 58 | ||
| 59 | } // namespace dpdk | |
| 60 | ||
| 61 | } | |
| 62 | ||
| 63 | #endif // SEASTAR_HAVE_DPDK |