aaf4363e1e
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com> Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2017 Cavium, Inc
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <rte_atomic.h>
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#include <rte_common.h>
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#include <rte_ethdev.h>
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#include <rte_ether.h>
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#include <rte_log.h>
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#include <rte_mbuf.h>
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#include <rte_prefetch.h>
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#include "octeontx_ethdev.h"
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#include "octeontx_rxtx.h"
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#include "octeontx_logs.h"
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static __rte_always_inline uint16_t __hot
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__octeontx_xmit_pkts(void *lmtline_va, void *ioreg_va, int64_t *fc_status_va,
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struct rte_mbuf *tx_pkt)
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{
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uint64_t cmd_buf[4];
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uint16_t gaura_id;
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if (unlikely(*((volatile int64_t *)fc_status_va) < 0))
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return -ENOSPC;
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/* Get the gaura Id */
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gaura_id = octeontx_fpa_bufpool_gpool((uintptr_t)tx_pkt->pool->pool_id);
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/* Setup PKO_SEND_HDR_S */
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cmd_buf[0] = tx_pkt->data_len & 0xffff;
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cmd_buf[1] = 0x0;
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/* Set don't free bit if reference count > 1 */
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if (rte_mbuf_refcnt_read(tx_pkt) > 1)
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cmd_buf[0] |= (1ULL << 58); /* SET DF */
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/* Setup PKO_SEND_GATHER_S */
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cmd_buf[(1 << 1) | 1] = rte_mbuf_data_iova(tx_pkt);
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cmd_buf[(1 << 1) | 0] = PKO_SEND_GATHER_SUBDC |
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PKO_SEND_GATHER_LDTYPE(0x1ull) |
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PKO_SEND_GATHER_GAUAR((long)gaura_id) |
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tx_pkt->data_len;
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octeontx_reg_lmtst(lmtline_va, ioreg_va, cmd_buf, PKO_CMD_SZ);
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return 0;
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}
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uint16_t __hot
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octeontx_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
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{
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int count;
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struct octeontx_txq *txq = tx_queue;
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octeontx_dq_t *dq = &txq->dq;
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int res;
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count = 0;
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while (count < nb_pkts) {
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res = __octeontx_xmit_pkts(dq->lmtline_va, dq->ioreg_va,
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dq->fc_status_va,
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tx_pkts[count]);
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if (res < 0)
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break;
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count++;
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}
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return count; /* return number of pkts transmitted */
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}
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uint16_t __hot
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octeontx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
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{
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struct octeontx_rxq *rxq;
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struct rte_event ev;
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size_t count;
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uint16_t valid_event;
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rxq = rx_queue;
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count = 0;
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while (count < nb_pkts) {
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valid_event = rte_event_dequeue_burst(rxq->evdev,
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rxq->ev_ports, &ev,
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1, 0);
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if (!valid_event)
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break;
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rx_pkts[count++] = ev.mbuf;
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}
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return count; /* return number of pkts received */
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}
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