1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2017 Cavium, Inc
10 #include <rte_atomic.h>
11 #include <rte_common.h>
12 #include <rte_ethdev_driver.h>
13 #include <rte_ether.h>
16 #include <rte_prefetch.h>
18 #include "octeontx_ethdev.h"
19 #include "octeontx_rxtx.h"
20 #include "octeontx_logs.h"
23 static __rte_always_inline uint16_t __hot
24 __octeontx_xmit_pkts(void *lmtline_va, void *ioreg_va, int64_t *fc_status_va,
25 struct rte_mbuf *tx_pkt)
30 if (unlikely(*((volatile int64_t *)fc_status_va) < 0))
33 /* Get the gaura Id */
34 gaura_id = octeontx_fpa_bufpool_gaura((uintptr_t)tx_pkt->pool->pool_id);
36 /* Setup PKO_SEND_HDR_S */
37 cmd_buf[0] = tx_pkt->data_len & 0xffff;
40 /* Set don't free bit if reference count > 1 */
41 if (rte_mbuf_refcnt_read(tx_pkt) > 1)
42 cmd_buf[0] |= (1ULL << 58); /* SET DF */
44 /* Setup PKO_SEND_GATHER_S */
45 cmd_buf[(1 << 1) | 1] = rte_mbuf_data_iova(tx_pkt);
46 cmd_buf[(1 << 1) | 0] = PKO_SEND_GATHER_SUBDC |
47 PKO_SEND_GATHER_LDTYPE(0x1ull) |
48 PKO_SEND_GATHER_GAUAR((long)gaura_id) |
51 octeontx_reg_lmtst(lmtline_va, ioreg_va, cmd_buf, PKO_CMD_SZ);
57 octeontx_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
60 struct octeontx_txq *txq = tx_queue;
61 octeontx_dq_t *dq = &txq->dq;
67 while (count < nb_pkts) {
68 res = __octeontx_xmit_pkts(dq->lmtline_va, dq->ioreg_va,
77 return count; /* return number of pkts transmitted */
81 octeontx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
83 struct octeontx_rxq *rxq;
90 while (count < nb_pkts) {
91 valid_event = rte_event_dequeue_burst(rxq->evdev,
96 rx_pkts[count++] = ev.mbuf;
99 return count; /* return number of pkts received */