X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=drivers%2Fnet%2Focteontx%2Focteontx_rxtx.c;fp=drivers%2Fnet%2Focteontx%2Focteontx_rxtx.c;h=c97d5b351bb2ba61f5d07cfe296130f5d16b1597;hb=055c52583a2794da8ba1e85a48cce3832372b12f;hp=0000000000000000000000000000000000000000;hpb=f239aed5e674965691846e8ce3f187dd47523689;p=deb_dpdk.git

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 */
+}