net/dpaa2: support Tx confirmation mode
[dpdk.git] / drivers / net / dpaa2 / dpaa2_rxtx.c
index 1aa1847..1c14b73 100644 (file)
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  *
  *   Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
- *   Copyright 2016-2018 NXP
+ *   Copyright 2016-2019 NXP
  *
  */
 
@@ -370,8 +370,9 @@ eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
        DPAA2_SET_FD_LEN(fd, mbuf->pkt_len);
        DPAA2_SET_ONLY_FD_BPID(fd, bpid);
        DPAA2_SET_FD_OFFSET(fd, temp->data_off);
-       DPAA2_SET_FD_ASAL(fd, DPAA2_ASAL_VAL);
        DPAA2_FD_SET_FORMAT(fd, qbman_fd_sg);
+       DPAA2_RESET_FD_FRC(fd);
+       DPAA2_RESET_FD_CTRL(fd);
        /*Set Scatter gather table and Scatter gather entries*/
        sgt = (struct qbman_sge *)(
                        (size_t)DPAA2_IOVA_TO_VADDR(DPAA2_GET_FD_ADDR(fd))
@@ -726,6 +727,215 @@ dpaa2_dev_process_ordered_event(struct qbman_swp *swp,
        qbman_swp_dqrr_consume(swp, dq);
 }
 
+uint16_t
+dpaa2_dev_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+{
+       /* Function 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, next_pull = nb_pkts, num_pulled;
+       uint8_t pending, status;
+       struct qbman_swp *swp;
+       const struct qbman_fd *fd, *next_fd;
+       struct qbman_pull_desc pulldesc;
+       struct rte_eth_dev_data *eth_data = dpaa2_q->eth_data;
+
+       if (unlikely(!DPAA2_PER_LCORE_DPIO)) {
+               ret = dpaa2_affine_qbman_swp();
+               if (ret) {
+                       DPAA2_PMD_ERR("Failure in affining portal\n");
+                       return 0;
+               }
+       }
+       swp = DPAA2_PER_LCORE_PORTAL;
+
+       do {
+               dq_storage = dpaa2_q->q_storage->dq_storage[0];
+               qbman_pull_desc_clear(&pulldesc);
+               qbman_pull_desc_set_fq(&pulldesc, fqid);
+               qbman_pull_desc_set_storage(&pulldesc, dq_storage,
+                               (size_t)(DPAA2_VADDR_TO_IOVA(dq_storage)), 1);
+
+               if (next_pull > dpaa2_dqrr_size) {
+                       qbman_pull_desc_set_numframes(&pulldesc,
+                               dpaa2_dqrr_size);
+                       next_pull -= dpaa2_dqrr_size;
+               } else {
+                       qbman_pull_desc_set_numframes(&pulldesc, next_pull);
+                       next_pull = 0;
+               }
+
+               while (1) {
+                       if (qbman_swp_pull(swp, &pulldesc)) {
+                               DPAA2_PMD_DP_DEBUG(
+                                       "VDQ command is not issued.QBMAN is busy\n");
+                               /* Portal was busy, try again */
+                               continue;
+                       }
+                       break;
+               }
+
+               rte_prefetch0((void *)((size_t)(dq_storage + 1)));
+               /* Check if the previous issued command is completed. */
+               while (!qbman_check_command_complete(dq_storage))
+                       ;
+
+               num_pulled = 0;
+               pending = 1;
+               do {
+                       /* Loop until the dq_storage is updated with
+                        * new token by QBMAN
+                        */
+                       while (!qbman_check_new_result(dq_storage))
+                               ;
+                       rte_prefetch0((void *)((size_t)(dq_storage + 2)));
+                       /* Check whether Last Pull command is Expired and
+                        * setting Condition for Loop termination
+                        */
+                       if (qbman_result_DQ_is_pull_complete(dq_storage)) {
+                               pending = 0;
+                               /* Check for valid frame. */
+                               status = qbman_result_DQ_flags(dq_storage);
+                               if (unlikely((status &
+                                       QBMAN_DQ_STAT_VALIDFRAME) == 0))
+                                       continue;
+                       }
+                       fd = qbman_result_DQ_fd(dq_storage);
+
+                       next_fd = qbman_result_DQ_fd(dq_storage + 1);
+                       /* Prefetch Annotation address for the parse results */
+                       rte_prefetch0(
+                               (void *)(size_t)(DPAA2_GET_FD_ADDR(next_fd)
+                                       + DPAA2_FD_PTA_SIZE + 16));
+
+                       if (unlikely(DPAA2_FD_GET_FORMAT(fd) == qbman_fd_sg))
+                               bufs[num_rx] = eth_sg_fd_to_mbuf(fd);
+                       else
+                               bufs[num_rx] = eth_fd_to_mbuf(fd);
+                       bufs[num_rx]->port = eth_data->port_id;
+
+               if (eth_data->dev_conf.rxmode.offloads &
+                               DEV_RX_OFFLOAD_VLAN_STRIP) {
+                       rte_vlan_strip(bufs[num_rx]);
+               }
+
+                       dq_storage++;
+                       num_rx++;
+                       num_pulled++;
+               } while (pending);
+       /* Last VDQ provided all packets and more packets are requested */
+       } while (next_pull && num_pulled == dpaa2_dqrr_size);
+
+       dpaa2_q->rx_pkts += num_rx;
+
+       return num_rx;
+}
+
+uint16_t dpaa2_dev_tx_conf(void *queue)
+{
+       /* Function 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_tx_conf = 0, num_pulled;
+       uint8_t pending, status;
+       struct qbman_swp *swp;
+       const struct qbman_fd *fd, *next_fd;
+       struct qbman_pull_desc pulldesc;
+       struct qbman_release_desc releasedesc;
+       uint32_t bpid;
+       uint64_t buf;
+
+       if (unlikely(!DPAA2_PER_LCORE_DPIO)) {
+               ret = dpaa2_affine_qbman_swp();
+               if (ret) {
+                       DPAA2_PMD_ERR("Failure in affining portal\n");
+                       return 0;
+               }
+       }
+       swp = DPAA2_PER_LCORE_PORTAL;
+
+       do {
+               dq_storage = dpaa2_q->q_storage->dq_storage[0];
+               qbman_pull_desc_clear(&pulldesc);
+               qbman_pull_desc_set_fq(&pulldesc, fqid);
+               qbman_pull_desc_set_storage(&pulldesc, dq_storage,
+                               (size_t)(DPAA2_VADDR_TO_IOVA(dq_storage)), 1);
+
+               qbman_pull_desc_set_numframes(&pulldesc, dpaa2_dqrr_size);
+
+               while (1) {
+                       if (qbman_swp_pull(swp, &pulldesc)) {
+                               DPAA2_PMD_DP_DEBUG("VDQ command is not issued."
+                                                  "QBMAN is busy\n");
+                               /* Portal was busy, try again */
+                               continue;
+                       }
+                       break;
+               }
+
+               rte_prefetch0((void *)((size_t)(dq_storage + 1)));
+               /* Check if the previous issued command is completed. */
+               while (!qbman_check_command_complete(dq_storage))
+                       ;
+
+               num_pulled = 0;
+               pending = 1;
+               do {
+                       /* Loop until the dq_storage is updated with
+                        * new token by QBMAN
+                        */
+                       while (!qbman_check_new_result(dq_storage))
+                               ;
+                       rte_prefetch0((void *)((size_t)(dq_storage + 2)));
+                       /* Check whether Last Pull command is Expired and
+                        * setting Condition for Loop termination
+                        */
+                       if (qbman_result_DQ_is_pull_complete(dq_storage)) {
+                               pending = 0;
+                               /* Check for valid frame. */
+                               status = qbman_result_DQ_flags(dq_storage);
+                               if (unlikely((status &
+                                       QBMAN_DQ_STAT_VALIDFRAME) == 0))
+                                       continue;
+                       }
+                       fd = qbman_result_DQ_fd(dq_storage);
+
+                       next_fd = qbman_result_DQ_fd(dq_storage + 1);
+                       /* Prefetch Annotation address for the parse results */
+                       rte_prefetch0((void *)(size_t)
+                               (DPAA2_GET_FD_ADDR(next_fd) +
+                                DPAA2_FD_PTA_SIZE + 16));
+
+                       bpid = DPAA2_GET_FD_BPID(fd);
+
+                       /* Create a release descriptor required for releasing
+                        * buffers into QBMAN
+                        */
+                       qbman_release_desc_clear(&releasedesc);
+                       qbman_release_desc_set_bpid(&releasedesc, bpid);
+
+                       buf = DPAA2_GET_FD_ADDR(fd);
+                       /* feed them to bman */
+                       do {
+                               ret = qbman_swp_release(swp, &releasedesc,
+                                                       &buf, 1);
+                       } while (ret == -EBUSY);
+
+                       dq_storage++;
+                       num_tx_conf++;
+                       num_pulled++;
+               } while (pending);
+
+       /* Last VDQ provided all packets and more packets are requested */
+       } while (num_pulled == dpaa2_dqrr_size);
+
+       dpaa2_q->rx_pkts += num_tx_conf;
+
+       return num_tx_conf;
+}
+
 /*
  * Callback to handle sending packets through WRIOP based interface
  */
@@ -763,8 +973,8 @@ dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
        /*Prepare enqueue descriptor*/
        qbman_eq_desc_clear(&eqdesc);
        qbman_eq_desc_set_no_orp(&eqdesc, DPAA2_EQ_RESP_ERR_FQ);
-       qbman_eq_desc_set_qd(&eqdesc, priv->qdid,
-                            dpaa2_q->flow_id, dpaa2_q->tc_index);
+       qbman_eq_desc_set_fq(&eqdesc, dpaa2_q->fqid);
+
        /*Clear the unused FD fields before sending*/
        while (nb_pkts) {
                /*Check if the queue is congested*/
@@ -915,8 +1125,7 @@ dpaa2_set_enqueue_descriptor(struct dpaa2_queue *dpaa2_q,
        uint16_t orpid, seqnum;
        uint8_t dq_idx;
 
-       qbman_eq_desc_set_qd(eqdesc, priv->qdid, dpaa2_q->flow_id,
-                            dpaa2_q->tc_index);
+       qbman_eq_desc_set_fq(eqdesc, dpaa2_q->fqid);
 
        if (m->seqn & DPAA2_ENQUEUE_FLAG_ORP) {
                orpid = (m->seqn & DPAA2_EQCR_OPRID_MASK) >>
@@ -1022,9 +1231,8 @@ dpaa2_dev_tx_ordered(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
                        } else {
                                qbman_eq_desc_set_no_orp(&eqdesc[loop],
                                                         DPAA2_EQ_RESP_ERR_FQ);
-                               qbman_eq_desc_set_qd(&eqdesc[loop], priv->qdid,
-                                                    dpaa2_q->flow_id,
-                                                    dpaa2_q->tc_index);
+                               qbman_eq_desc_set_fq(&eqdesc[loop],
+                                                    dpaa2_q->fqid);
                        }
 
                        if (likely(RTE_MBUF_DIRECT(*bufs))) {
@@ -1143,3 +1351,164 @@ dummy_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
        (void)nb_pkts;
        return 0;
 }
+
+#if defined(RTE_TOOLCHAIN_GCC)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#elif defined(RTE_TOOLCHAIN_CLANG)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wcast-qual"
+#endif
+
+/* This function loopbacks all the received packets.*/
+uint16_t
+dpaa2_dev_loopback_rx(void *queue,
+                     struct rte_mbuf **bufs __rte_unused,
+                     uint16_t nb_pkts)
+{
+       /* Function receive frames for a given device and VQ*/
+       struct dpaa2_queue *dpaa2_q = (struct dpaa2_queue *)queue;
+       struct qbman_result *dq_storage, *dq_storage1 = NULL;
+       uint32_t fqid = dpaa2_q->fqid;
+       int ret, num_rx = 0, num_tx = 0, pull_size;
+       uint8_t pending, status;
+       struct qbman_swp *swp;
+       struct qbman_fd *fd[DPAA2_LX2_DQRR_RING_SIZE];
+       struct qbman_pull_desc pulldesc;
+       struct qbman_eq_desc eqdesc;
+       struct queue_storage_info_t *q_storage = dpaa2_q->q_storage;
+       struct rte_eth_dev_data *eth_data = dpaa2_q->eth_data;
+       struct dpaa2_dev_priv *priv = eth_data->dev_private;
+       struct dpaa2_queue *tx_q = priv->tx_vq[0];
+       /* todo - currently we are using 1st TX queue only for loopback*/
+
+       if (unlikely(!DPAA2_PER_LCORE_ETHRX_DPIO)) {
+               ret = dpaa2_affine_qbman_ethrx_swp();
+               if (ret) {
+                       DPAA2_PMD_ERR("Failure in affining portal");
+                       return 0;
+               }
+       }
+       swp = DPAA2_PER_LCORE_ETHRX_PORTAL;
+       pull_size = (nb_pkts > dpaa2_dqrr_size) ? dpaa2_dqrr_size : nb_pkts;
+       if (unlikely(!q_storage->active_dqs)) {
+               q_storage->toggle = 0;
+               dq_storage = q_storage->dq_storage[q_storage->toggle];
+               q_storage->last_num_pkts = pull_size;
+               qbman_pull_desc_clear(&pulldesc);
+               qbman_pull_desc_set_numframes(&pulldesc,
+                                             q_storage->last_num_pkts);
+               qbman_pull_desc_set_fq(&pulldesc, fqid);
+               qbman_pull_desc_set_storage(&pulldesc, dq_storage,
+                       (size_t)(DPAA2_VADDR_TO_IOVA(dq_storage)), 1);
+               if (check_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index)) {
+                       while (!qbman_check_command_complete(
+                              get_swp_active_dqs(
+                              DPAA2_PER_LCORE_ETHRX_DPIO->index)))
+                               ;
+                       clear_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index);
+               }
+               while (1) {
+                       if (qbman_swp_pull(swp, &pulldesc)) {
+                               DPAA2_PMD_DP_DEBUG(
+                                       "VDQ command not issued.QBMAN busy\n");
+                               /* Portal was busy, try again */
+                               continue;
+                       }
+                       break;
+               }
+               q_storage->active_dqs = dq_storage;
+               q_storage->active_dpio_id = DPAA2_PER_LCORE_ETHRX_DPIO->index;
+               set_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index,
+                                  dq_storage);
+       }
+
+       dq_storage = q_storage->active_dqs;
+       rte_prefetch0((void *)(size_t)(dq_storage));
+       rte_prefetch0((void *)(size_t)(dq_storage + 1));
+
+       /* Prepare next pull descriptor. This will give space for the
+        * prefething done on DQRR entries
+        */
+       q_storage->toggle ^= 1;
+       dq_storage1 = q_storage->dq_storage[q_storage->toggle];
+       qbman_pull_desc_clear(&pulldesc);
+       qbman_pull_desc_set_numframes(&pulldesc, pull_size);
+       qbman_pull_desc_set_fq(&pulldesc, fqid);
+       qbman_pull_desc_set_storage(&pulldesc, dq_storage1,
+               (size_t)(DPAA2_VADDR_TO_IOVA(dq_storage1)), 1);
+
+       /*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_fq(&eqdesc, tx_q->fqid);
+
+       /* 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(dq_storage))
+               ;
+       if (dq_storage == get_swp_active_dqs(q_storage->active_dpio_id))
+               clear_swp_active_dqs(q_storage->active_dpio_id);
+
+       pending = 1;
+
+       do {
+               /* Loop until the dq_storage is updated with
+                * new token by QBMAN
+                */
+               while (!qbman_check_new_result(dq_storage))
+                       ;
+               rte_prefetch0((void *)((size_t)(dq_storage + 2)));
+               /* Check whether Last Pull command is Expired and
+                * setting Condition for Loop termination
+                */
+               if (qbman_result_DQ_is_pull_complete(dq_storage)) {
+                       pending = 0;
+                       /* Check for valid frame. */
+                       status = qbman_result_DQ_flags(dq_storage);
+                       if (unlikely((status & QBMAN_DQ_STAT_VALIDFRAME) == 0))
+                               continue;
+               }
+               fd[num_rx] = (struct qbman_fd *)qbman_result_DQ_fd(dq_storage);
+
+               dq_storage++;
+               num_rx++;
+       } while (pending);
+
+       while (num_tx < num_rx) {
+               num_tx += qbman_swp_enqueue_multiple_fd(swp, &eqdesc,
+                               &fd[num_tx], 0, num_rx - num_tx);
+       }
+
+       if (check_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index)) {
+               while (!qbman_check_command_complete(
+                      get_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index)))
+                       ;
+               clear_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index);
+       }
+       /* issue a volatile dequeue command for next pull */
+       while (1) {
+               if (qbman_swp_pull(swp, &pulldesc)) {
+                       DPAA2_PMD_DP_DEBUG("VDQ command is not issued."
+                                         "QBMAN is busy (2)\n");
+                       continue;
+               }
+               break;
+       }
+       q_storage->active_dqs = dq_storage1;
+       q_storage->active_dpio_id = DPAA2_PER_LCORE_ETHRX_DPIO->index;
+       set_swp_active_dqs(DPAA2_PER_LCORE_ETHRX_DPIO->index, dq_storage1);
+
+       dpaa2_q->rx_pkts += num_rx;
+       dpaa2_q->tx_pkts += num_tx;
+
+       return 0;
+}
+#if defined(RTE_TOOLCHAIN_GCC)
+#pragma GCC diagnostic pop
+#elif defined(RTE_TOOLCHAIN_CLANG)
+#pragma clang diagnostic pop
+#endif