--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
+ * Copyright (c) 2016 NXP. 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 Freescale Semiconductor, 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 <time.h>
+#include <net/if.h>
+
+#include <rte_mbuf.h>
+#include <rte_ethdev.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_string_fns.h>
+#include <rte_dev.h>
+#include <rte_ethdev.h>
+
+#include <fslmc_logs.h>
+#include <fslmc_vfio.h>
+#include <dpaa2_hw_pvt.h>
+#include <dpaa2_hw_dpio.h>
+#include <dpaa2_hw_mempool.h>
+
+#include "dpaa2_ethdev.h"
+
+static inline struct rte_mbuf *__attribute__((hot))
+eth_fd_to_mbuf(const struct qbman_fd *fd)
+{
+ struct rte_mbuf *mbuf = DPAA2_INLINE_MBUF_FROM_BUF(
+ DPAA2_GET_FD_ADDR(fd),
+ rte_dpaa2_bpid_info[DPAA2_GET_FD_BPID(fd)].meta_data_size);
+
+ /* need to repopulated some of the fields,
+ * as they may have changed in last transmission
+ */
+ mbuf->nb_segs = 1;
+ mbuf->ol_flags = 0;
+ mbuf->data_off = DPAA2_GET_FD_OFFSET(fd);
+ mbuf->data_len = DPAA2_GET_FD_LEN(fd);
+ mbuf->pkt_len = mbuf->data_len;
+
+ mbuf->packet_type = RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4;
+
+ mbuf->next = NULL;
+ rte_mbuf_refcnt_set(mbuf, 1);
+
+ PMD_RX_LOG(DEBUG, "to mbuf - mbuf =%p, mbuf->buf_addr =%p, off = %d,"
+ "fd_off=%d fd =%lx, meta = %d bpid =%d, len=%d\n",
+ mbuf, mbuf->buf_addr, mbuf->data_off,
+ DPAA2_GET_FD_OFFSET(fd), DPAA2_GET_FD_ADDR(fd),
+ rte_dpaa2_bpid_info[DPAA2_GET_FD_BPID(fd)].meta_data_size,
+ DPAA2_GET_FD_BPID(fd), DPAA2_GET_FD_LEN(fd));
+
+ return mbuf;
+}
+
+static void __attribute__ ((noinline)) __attribute__((hot))
+eth_mbuf_to_fd(struct rte_mbuf *mbuf,
+ struct qbman_fd *fd, uint16_t bpid)
+{
+ /*Resetting the buffer pool id and offset field*/
+ fd->simple.bpid_offset = 0;
+
+ DPAA2_SET_FD_ADDR(fd, (mbuf->buf_addr));
+ DPAA2_SET_FD_LEN(fd, mbuf->data_len);
+ DPAA2_SET_FD_BPID(fd, bpid);
+ DPAA2_SET_FD_OFFSET(fd, mbuf->data_off);
+ DPAA2_SET_FD_ASAL(fd, DPAA2_ASAL_VAL);
+
+ PMD_TX_LOG(DEBUG, "mbuf =%p, mbuf->buf_addr =%p, off = %d,"
+ "fd_off=%d fd =%lx, meta = %d bpid =%d, len=%d\n",
+ mbuf, mbuf->buf_addr, mbuf->data_off,
+ DPAA2_GET_FD_OFFSET(fd), DPAA2_GET_FD_ADDR(fd),
+ rte_dpaa2_bpid_info[DPAA2_GET_FD_BPID(fd)].meta_data_size,
+ DPAA2_GET_FD_BPID(fd), DPAA2_GET_FD_LEN(fd));
+}
+
+uint16_t
+dpaa2_dev_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+{
+ /* Function is responsible to receive frames for a given device and VQ*/
+ struct dpaa2_queue *dpaa2_q = (struct dpaa2_queue *)queue;
+ struct qbman_result *dq_storage;
+ uint32_t fqid = dpaa2_q->fqid;
+ int ret, num_rx = 0;
+ uint8_t is_last = 0, status;
+ struct qbman_swp *swp;
+ const struct qbman_fd *fd;
+ struct qbman_pull_desc pulldesc;
+ struct rte_eth_dev *dev = dpaa2_q->dev;
+
+ if (unlikely(!DPAA2_PER_LCORE_DPIO)) {
+ ret = dpaa2_affine_qbman_swp();
+ if (ret) {
+ RTE_LOG(ERR, PMD, "Failure in affining portal\n");
+ return 0;
+ }
+ }
+ swp = DPAA2_PER_LCORE_PORTAL;
+ dq_storage = dpaa2_q->q_storage->dq_storage[0];
+
+ qbman_pull_desc_clear(&pulldesc);
+ qbman_pull_desc_set_numframes(&pulldesc,
+ (nb_pkts > DPAA2_DQRR_RING_SIZE) ?
+ DPAA2_DQRR_RING_SIZE : nb_pkts);
+ qbman_pull_desc_set_fq(&pulldesc, fqid);
+ /* todo optimization - we can have dq_storage_phys available*/
+ qbman_pull_desc_set_storage(&pulldesc, dq_storage,
+ (dma_addr_t)(dq_storage), 1);
+
+ /*Issue a volatile dequeue command. */
+ while (1) {
+ if (qbman_swp_pull(swp, &pulldesc)) {
+ PMD_RX_LOG(ERR, "VDQ command is not issued."
+ "QBMAN is busy\n");
+ /* Portal was busy, try again */
+ continue;
+ }
+ break;
+ };
+
+ /* Receive the packets till Last Dequeue entry is found with
+ * respect to the above issues PULL command.
+ */
+ while (!is_last) {
+ struct rte_mbuf *mbuf;
+ /*Check if the previous issued command is completed.
+ * Also seems like the SWP is shared between the
+ * Ethernet Driver and the SEC driver.
+ */
+ while (!qbman_check_command_complete(swp, dq_storage))
+ ;
+ /* Loop until the dq_storage is updated with
+ * new token by QBMAN
+ */
+ while (!qbman_result_has_new_result(swp, dq_storage))
+ ;
+ /* Check whether Last Pull command is Expired and
+ * setting Condition for Loop termination
+ */
+ if (qbman_result_DQ_is_pull_complete(dq_storage)) {
+ is_last = 1;
+ /* Check for valid frame. */
+ status = (uint8_t)qbman_result_DQ_flags(dq_storage);
+ if (unlikely((status & QBMAN_DQ_STAT_VALIDFRAME) == 0))
+ continue;
+ }
+
+ fd = qbman_result_DQ_fd(dq_storage);
+ mbuf = (struct rte_mbuf *)(DPAA2_GET_FD_ADDR(fd)
+ - rte_dpaa2_bpid_info[DPAA2_GET_FD_BPID(fd)].meta_data_size);
+ /* Prefeth mbuf */
+ rte_prefetch0(mbuf);
+ /* Prefetch Annotation address for the parse results */
+ rte_prefetch0((void *)((uint64_t)DPAA2_GET_FD_ADDR(fd)
+ + DPAA2_FD_PTA_SIZE + 16));
+
+ bufs[num_rx] = eth_fd_to_mbuf(fd);
+ bufs[num_rx]->port = dev->data->port_id;
+
+ num_rx++;
+ dq_storage++;
+ } /* End of Packet Rx loop */
+
+ dpaa2_q->rx_pkts += num_rx;
+
+ /*Return the total number of packets received to DPAA2 app*/
+ return num_rx;
+}
+
+/*
+ * Callback to handle sending packets through WRIOP based interface
+ */
+uint16_t
+dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+{
+ /* Function to transmit the frames to given device and VQ*/
+ uint32_t loop;
+ int32_t ret;
+ struct qbman_fd fd_arr[MAX_TX_RING_SLOTS];
+ uint32_t frames_to_send;
+ struct rte_mempool *mp;
+ struct qbman_eq_desc eqdesc;
+ struct dpaa2_queue *dpaa2_q = (struct dpaa2_queue *)queue;
+ struct qbman_swp *swp;
+ uint16_t num_tx = 0;
+ uint16_t bpid;
+ struct rte_eth_dev *dev = dpaa2_q->dev;
+ struct dpaa2_dev_priv *priv = dev->data->dev_private;
+
+ if (unlikely(!DPAA2_PER_LCORE_DPIO)) {
+ ret = dpaa2_affine_qbman_swp();
+ if (ret) {
+ RTE_LOG(ERR, PMD, "Failure in affining portal\n");
+ return 0;
+ }
+ }
+ swp = DPAA2_PER_LCORE_PORTAL;
+
+ PMD_TX_LOG(DEBUG, "===> dev =%p, fqid =%d", dev, dpaa2_q->fqid);
+
+ /*Prepare enqueue descriptor*/
+ qbman_eq_desc_clear(&eqdesc);
+ qbman_eq_desc_set_no_orp(&eqdesc, DPAA2_EQ_RESP_ERR_FQ);
+ qbman_eq_desc_set_response(&eqdesc, 0, 0);
+ qbman_eq_desc_set_qd(&eqdesc, priv->qdid,
+ dpaa2_q->flow_id, dpaa2_q->tc_index);
+
+ /*Clear the unused FD fields before sending*/
+ while (nb_pkts) {
+ frames_to_send = (nb_pkts >> 3) ? MAX_TX_RING_SLOTS : nb_pkts;
+
+ for (loop = 0; loop < frames_to_send; loop++) {
+ fd_arr[loop].simple.frc = 0;
+ DPAA2_RESET_FD_CTRL((&fd_arr[loop]));
+ DPAA2_SET_FD_FLC((&fd_arr[loop]), NULL);
+ mp = (*bufs)->pool;
+ bpid = mempool_to_bpid(mp);
+ eth_mbuf_to_fd(*bufs, &fd_arr[loop], bpid);
+ bufs++;
+ }
+ loop = 0;
+ while (loop < frames_to_send) {
+ loop += qbman_swp_send_multiple(swp, &eqdesc,
+ &fd_arr[loop], frames_to_send - loop);
+ }
+
+ num_tx += frames_to_send;
+ dpaa2_q->tx_pkts += frames_to_send;
+ nb_pkts -= frames_to_send;
+ }
+ return num_tx;
+}
git.droids-corp.org / dpdk.git / commitdiff