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/*
* BSD LICENSE
*
* Copyright (C) Cavium networks Ltd. 2016.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Cavium networks nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __THUNDERX_NICVF_RXTX_H__
#define __THUNDERX_NICVF_RXTX_H__
#include <rte_byteorder.h>
#include <rte_ethdev.h>
#define NICVF_TX_OFFLOAD_MASK (PKT_TX_IP_CKSUM | PKT_TX_L4_MASK)
#ifndef __hot
#define __hot __attribute__((hot))
#endif
#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
static inline uint16_t __attribute__((const))
nicvf_frag_num(uint16_t i)
{
return (i & ~3) + 3 - (i & 3);
}
static inline void __hot
fill_sq_desc_gather(union sq_entry_t *entry, struct rte_mbuf *pkt)
{
/* Local variable sqe to avoid read from sq desc memory*/
union sq_entry_t sqe;
/* Fill the SQ gather entry */
sqe.buff[0] = 0; sqe.buff[1] = 0;
sqe.gather.subdesc_type = SQ_DESC_TYPE_GATHER;
sqe.gather.ld_type = NIC_SEND_LD_TYPE_E_LDT;
sqe.gather.size = pkt->data_len;
sqe.gather.addr = rte_mbuf_data_dma_addr(pkt);
entry->buff[0] = sqe.buff[0];
entry->buff[1] = sqe.buff[1];
}
#else
static inline uint16_t __attribute__((const))
nicvf_frag_num(uint16_t i)
{
return i;
}
static inline void __hot
fill_sq_desc_gather(union sq_entry_t *entry, struct rte_mbuf *pkt)
{
entry->buff[0] = (uint64_t)SQ_DESC_TYPE_GATHER << 60 |
(uint64_t)NIC_SEND_LD_TYPE_E_LDT << 58 |
pkt->data_len;
entry->buff[1] = rte_mbuf_data_dma_addr(pkt);
}
#endif
static inline void
nicvf_mbuff_init_update(struct rte_mbuf *pkt, const uint64_t mbuf_init,
uint16_t apad)
{
union mbuf_initializer init = {.value = mbuf_init};
#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
init.fields.data_off += apad;
#else
init.value += apad;
#endif
*(uint64_t *)(&pkt->rearm_data) = init.value;
}
static inline void
nicvf_mbuff_init_mseg_update(struct rte_mbuf *pkt, const uint64_t mbuf_init,
uint16_t apad, uint16_t nb_segs)
{
union mbuf_initializer init = {.value = mbuf_init};
#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
init.fields.data_off += apad;
#else
init.value += apad;
#endif
init.fields.nb_segs = nb_segs;
*(uint64_t *)(&pkt->rearm_data) = init.value;
}
uint32_t nicvf_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t queue_idx);
uint32_t nicvf_dev_rbdr_refill(struct rte_eth_dev *dev, uint16_t queue_idx);
uint16_t nicvf_recv_pkts(void *rxq, struct rte_mbuf **rx_pkts, uint16_t pkts);
uint16_t nicvf_recv_pkts_multiseg(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
uint16_t nicvf_xmit_pkts(void *txq, struct rte_mbuf **tx_pkts, uint16_t pkts);
uint16_t nicvf_xmit_pkts_multiseg(void *txq, struct rte_mbuf **tx_pkts,
uint16_t pkts);
void nicvf_single_pool_free_xmited_buffers(struct nicvf_txq *sq);
void nicvf_multi_pool_free_xmited_buffers(struct nicvf_txq *sq);
#endif /* __THUNDERX_NICVF_RXTX_H__ */
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