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55 lines
1.2 KiB
55 lines
1.2 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Copyright (C) 2015-2019 Jason A. Donenfeld <[email protected]>. All Rights Reserved. |
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*/ |
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#include "queueing.h" |
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struct multicore_worker __percpu * |
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wg_packet_percpu_multicore_worker_alloc(work_func_t function, void *ptr) |
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{ |
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int cpu; |
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struct multicore_worker __percpu *worker = |
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alloc_percpu(struct multicore_worker); |
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if (!worker) |
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return NULL; |
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for_each_possible_cpu(cpu) { |
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per_cpu_ptr(worker, cpu)->ptr = ptr; |
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INIT_WORK(&per_cpu_ptr(worker, cpu)->work, function); |
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} |
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return worker; |
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} |
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int wg_packet_queue_init(struct crypt_queue *queue, work_func_t function, |
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bool multicore, unsigned int len) |
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{ |
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int ret; |
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memset(queue, 0, sizeof(*queue)); |
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ret = ptr_ring_init(&queue->ring, len, GFP_KERNEL); |
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if (ret) |
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return ret; |
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if (function) { |
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if (multicore) { |
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queue->worker = wg_packet_percpu_multicore_worker_alloc( |
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function, queue); |
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if (!queue->worker) { |
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ptr_ring_cleanup(&queue->ring, NULL); |
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return -ENOMEM; |
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} |
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} else { |
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INIT_WORK(&queue->work, function); |
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} |
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} |
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return 0; |
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} |
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void wg_packet_queue_free(struct crypt_queue *queue, bool multicore) |
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{ |
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if (multicore) |
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free_percpu(queue->worker); |
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WARN_ON(!__ptr_ring_empty(&queue->ring)); |
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ptr_ring_cleanup(&queue->ring, NULL); |
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}
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