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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2015 Intel Corporation
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <rte_cycles.h>
#include <rte_memory.h>
#include <rte_branch_prediction.h>
#include <rte_mempool.h>
#include <rte_malloc.h>
#include <rte_mbuf.h>
#include <rte_ether.h>
#include <rte_ethdev_driver.h>
#include <rte_prefetch.h>
#include <rte_string_fns.h>
#include <rte_errno.h>
#include <rte_byteorder.h>
#include "virtio_rxtx_simple.h"
#ifndef __INTEL_COMPILER
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif
int __attribute__((cold))
virtio_rxq_vec_setup(struct virtnet_rx *rxq)
{
uintptr_t p;
struct rte_mbuf mb_def = { .buf_addr = 0 }; /* zeroed mbuf */
mb_def.nb_segs = 1;
mb_def.data_off = RTE_PKTMBUF_HEADROOM;
mb_def.port = rxq->port_id;
rte_mbuf_refcnt_set(&mb_def, 1);
/* prevent compiler reordering: rearm_data covers previous fields */
rte_compiler_barrier();
p = (uintptr_t)&mb_def.rearm_data;
rxq->mbuf_initializer = *(uint64_t *)p;
return 0;
}
/* Stub for linkage when arch specific implementation is not available */
__rte_weak uint16_t
virtio_recv_pkts_vec(void *rx_queue __rte_unused,
struct rte_mbuf **rx_pkts __rte_unused,
uint16_t nb_pkts __rte_unused)
{
rte_panic("Wrong weak function linked by linker\n");
return 0;
}
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