diff options
author | 2017-11-08 14:15:11 +0000 | |
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committer | 2017-11-08 14:45:54 +0000 | |
commit | 055c52583a2794da8ba1e85a48cce3832372b12f (patch) | |
tree | 8ceb1cb78fbb46a0f341f8ee24feb3c6b5540013 /drivers/net/octeontx/octeontx_rxtx.c | |
parent | f239aed5e674965691846e8ce3f187dd47523689 (diff) |
New upstream version 17.11-rc3
Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'drivers/net/octeontx/octeontx_rxtx.c')
-rw-r--r-- | drivers/net/octeontx/octeontx_rxtx.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/drivers/net/octeontx/octeontx_rxtx.c b/drivers/net/octeontx/octeontx_rxtx.c new file mode 100644 index 00000000..c97d5b35 --- /dev/null +++ b/drivers/net/octeontx/octeontx_rxtx.c @@ -0,0 +1,127 @@ +/* + * BSD LICENSE + * + * Copyright (C) Cavium, Inc. 2017. All rights reserved. + * + * 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, Inc 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. + */ + +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include <rte_atomic.h> +#include <rte_common.h> +#include <rte_ethdev.h> +#include <rte_ether.h> +#include <rte_log.h> +#include <rte_mbuf.h> +#include <rte_prefetch.h> + +#include "octeontx_ethdev.h" +#include "octeontx_rxtx.h" +#include "octeontx_logs.h" + + +static __rte_always_inline uint16_t __hot +__octeontx_xmit_pkts(void *lmtline_va, void *ioreg_va, int64_t *fc_status_va, + struct rte_mbuf *tx_pkt) +{ + uint64_t cmd_buf[4]; + uint16_t gaura_id; + + if (unlikely(*((volatile int64_t *)fc_status_va) < 0)) + return -ENOSPC; + + /* Get the gaura Id */ + gaura_id = octeontx_fpa_bufpool_gpool((uintptr_t)tx_pkt->pool->pool_id); + + /* Setup PKO_SEND_HDR_S */ + cmd_buf[0] = tx_pkt->data_len & 0xffff; + cmd_buf[1] = 0x0; + + /* Set don't free bit if reference count > 1 */ + if (rte_mbuf_refcnt_read(tx_pkt) > 1) + cmd_buf[0] |= (1ULL << 58); /* SET DF */ + + /* Setup PKO_SEND_GATHER_S */ + cmd_buf[(1 << 1) | 1] = rte_mbuf_data_iova(tx_pkt); + cmd_buf[(1 << 1) | 0] = PKO_SEND_GATHER_SUBDC | + PKO_SEND_GATHER_LDTYPE(0x1ull) | + PKO_SEND_GATHER_GAUAR((long)gaura_id) | + tx_pkt->data_len; + + octeontx_reg_lmtst(lmtline_va, ioreg_va, cmd_buf, PKO_CMD_SZ); + + return 0; +} + +uint16_t __hot +octeontx_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) +{ + int count; + struct octeontx_txq *txq = tx_queue; + octeontx_dq_t *dq = &txq->dq; + int res; + + count = 0; + + while (count < nb_pkts) { + res = __octeontx_xmit_pkts(dq->lmtline_va, dq->ioreg_va, + dq->fc_status_va, + tx_pkts[count]); + if (res < 0) + break; + + count++; + } + + return count; /* return number of pkts transmitted */ +} + +uint16_t __hot +octeontx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts) +{ + struct octeontx_rxq *rxq; + struct rte_event ev; + size_t count; + uint16_t valid_event; + + rxq = rx_queue; + count = 0; + while (count < nb_pkts) { + valid_event = rte_event_dequeue_burst(rxq->evdev, + rxq->ev_ports, &ev, + 1, 0); + if (!valid_event) + break; + rx_pkts[count++] = ev.mbuf; + } + + return count; /* return number of pkts received */ +} |