projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | /*- |
| 2 | * BSD LICENSE | |
| 3 | * | |
| 4 | * Copyright (c) Intel Corporation. | |
| 5 | * All rights reserved. | |
| 6 | * | |
| 7 | * Redistribution and use in source and binary forms, with or without | |
| 8 | * modification, are permitted provided that the following conditions | |
| 9 | * are met: | |
| 10 | * | |
| 11 | * * Redistributions of source code must retain the above copyright | |
| 12 | * notice, this list of conditions and the following disclaimer. | |
| 13 | * * Redistributions in binary form must reproduce the above copyright | |
| 14 | * notice, this list of conditions and the following disclaimer in | |
| 15 | * the documentation and/or other materials provided with the | |
| 16 | * distribution. | |
| 17 | * * Neither the name of Intel Corporation nor the names of its | |
| 18 | * contributors may be used to endorse or promote products derived | |
| 19 | * from this software without specific prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 22 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 24 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 25 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 26 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 27 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 32 | */ | |
| 33 | ||
| 34 | #include "spdk/env.h" | |
| 35 | ||
| 36 | #include <rte_config.h> | |
| 37 | #include <rte_lcore.h> | |
| 38 | ||
| 39 | uint32_t | |
| 40 | spdk_env_get_core_count(void) | |
| 41 | { | |
| 42 | return rte_lcore_count(); | |
| 43 | } | |
| 44 | ||
| 45 | uint32_t | |
| 46 | spdk_env_get_current_core(void) | |
| 47 | { | |
| 48 | return rte_lcore_id(); | |
| 49 | } | |
| 50 | ||
| 51 | uint32_t | |
| 52 | spdk_env_get_first_core(void) | |
| 53 | { | |
| 54 | return rte_get_next_lcore(-1, 0, 0); | |
| 55 | } | |
| 56 | ||
| 11fdf7f2 TL |
57 | uint32_t |
| 58 | spdk_env_get_last_core(void) | |
| 59 | { | |
| 60 | uint32_t i; | |
| 61 | uint32_t last_core = UINT32_MAX; | |
| 62 | ||
| 63 | SPDK_ENV_FOREACH_CORE(i) { | |
| 64 | last_core = i; | |
| 65 | } | |
| 66 | ||
| 67 | assert(last_core != UINT32_MAX); | |
| 68 | ||
| 69 | return last_core; | |
| 70 | } | |
| 71 | ||
| 7c673cae FG |
72 | uint32_t |
| 73 | spdk_env_get_next_core(uint32_t prev_core) | |
| 74 | { | |
| 75 | unsigned lcore; | |
| 76 | ||
| 77 | lcore = rte_get_next_lcore(prev_core, 0, 0); | |
| 78 | if (lcore == RTE_MAX_LCORE) { | |
| 79 | return UINT32_MAX; | |
| 80 | } | |
| 81 | return lcore; | |
| 82 | } | |
| 83 | ||
| 84 | uint32_t | |
| 85 | spdk_env_get_socket_id(uint32_t core) | |
| 86 | { | |
| 11fdf7f2 TL |
87 | if (core >= RTE_MAX_LCORE) { |
| 88 | return SPDK_ENV_SOCKET_ID_ANY; | |
| 89 | } | |
| 90 | ||
| 7c673cae FG |
91 | return rte_lcore_to_socket_id(core); |
| 92 | } | |
| 11fdf7f2 TL |
93 | |
| 94 | int | |
| 95 | spdk_env_thread_launch_pinned(uint32_t core, thread_start_fn fn, void *arg) | |
| 96 | { | |
| 97 | int rc; | |
| 98 | ||
| 99 | rc = rte_eal_remote_launch(fn, arg, core); | |
| 100 | ||
| 101 | return rc; | |
| 102 | } | |
| 103 | ||
| 104 | void | |
| 105 | spdk_env_thread_wait_all(void) | |
| 106 | { | |
| 107 | rte_eal_mp_wait_lcore(); | |
| 108 | } |