mbuf: rename deprecated VLAN flags
[dpdk.git] / drivers / net / dpaa2 / dpaa2_rxtx.c
index 30125eb..8ecd238 100644 (file)
@@ -2,7 +2,7 @@
  *   BSD LICENSE
  *
  *   Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
- *   Copyright (c) 2016 NXP. All rights reserved.
+ *   Copyright 2016 NXP.
  *
  *   Redistribution and use in source and binary forms, with or without
  *   modification, are permitted provided that the following conditions
@@ -40,7 +40,6 @@
 #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>
@@ -123,7 +122,7 @@ dpaa2_dev_rx_offload(uint64_t hw_annot_addr, struct rte_mbuf *mbuf)
 
        if (BIT_ISSET_AT_POS(annotation->word3,
                             L2_VLAN_1_PRESENT | L2_VLAN_N_PRESENT))
-               mbuf->ol_flags |= PKT_RX_VLAN_PKT;
+               mbuf->ol_flags |= PKT_RX_VLAN;
 
        if (BIT_ISSET_AT_POS(annotation->word8, DPAA2_ETH_FAS_L3CE))
                mbuf->ol_flags |= PKT_RX_IP_CKSUM_BAD;
@@ -132,6 +131,66 @@ dpaa2_dev_rx_offload(uint64_t hw_annot_addr, struct rte_mbuf *mbuf)
                mbuf->ol_flags |= PKT_RX_L4_CKSUM_BAD;
 }
 
+static inline struct rte_mbuf *__attribute__((hot))
+eth_sg_fd_to_mbuf(const struct qbman_fd *fd)
+{
+       struct qbman_sge *sgt, *sge;
+       dma_addr_t sg_addr;
+       int i = 0;
+       uint64_t fd_addr;
+       struct rte_mbuf *first_seg, *next_seg, *cur_seg, *temp;
+
+       fd_addr = (uint64_t)DPAA2_IOVA_TO_VADDR(DPAA2_GET_FD_ADDR(fd));
+
+       /* Get Scatter gather table address */
+       sgt = (struct qbman_sge *)(fd_addr + DPAA2_GET_FD_OFFSET(fd));
+
+       sge = &sgt[i++];
+       sg_addr = (uint64_t)DPAA2_IOVA_TO_VADDR(DPAA2_GET_FLE_ADDR(sge));
+
+       /* First Scatter gather entry */
+       first_seg = DPAA2_INLINE_MBUF_FROM_BUF(sg_addr,
+               rte_dpaa2_bpid_info[DPAA2_GET_FD_BPID(fd)].meta_data_size);
+       /* Prepare all the metadata for first segment */
+       first_seg->buf_addr = (uint8_t *)sg_addr;
+       first_seg->ol_flags = 0;
+       first_seg->data_off = DPAA2_GET_FLE_OFFSET(sge);
+       first_seg->data_len = sge->length  & 0x1FFFF;
+       first_seg->pkt_len = DPAA2_GET_FD_LEN(fd);
+       first_seg->nb_segs = 1;
+       first_seg->next = NULL;
+
+       first_seg->packet_type = dpaa2_dev_rx_parse(
+                        (uint64_t)DPAA2_IOVA_TO_VADDR(DPAA2_GET_FD_ADDR(fd))
+                        + DPAA2_FD_PTA_SIZE);
+       dpaa2_dev_rx_offload((uint64_t)DPAA2_IOVA_TO_VADDR(
+                       DPAA2_GET_FD_ADDR(fd)) +
+                       DPAA2_FD_PTA_SIZE, first_seg);
+       rte_mbuf_refcnt_set(first_seg, 1);
+       cur_seg = first_seg;
+       while (!DPAA2_SG_IS_FINAL(sge)) {
+               sge = &sgt[i++];
+               sg_addr = (uint64_t)DPAA2_IOVA_TO_VADDR(
+                               DPAA2_GET_FLE_ADDR(sge));
+               next_seg = DPAA2_INLINE_MBUF_FROM_BUF(sg_addr,
+                       rte_dpaa2_bpid_info[DPAA2_GET_FLE_BPID(sge)].meta_data_size);
+               next_seg->buf_addr  = (uint8_t *)sg_addr;
+               next_seg->data_off  = DPAA2_GET_FLE_OFFSET(sge);
+               next_seg->data_len  = sge->length  & 0x1FFFF;
+               first_seg->nb_segs += 1;
+               rte_mbuf_refcnt_set(next_seg, 1);
+               cur_seg->next = next_seg;
+               next_seg->next = NULL;
+               cur_seg = next_seg;
+       }
+       temp = DPAA2_INLINE_MBUF_FROM_BUF(fd_addr,
+               rte_dpaa2_bpid_info[DPAA2_GET_FD_BPID(fd)].meta_data_size);
+       rte_mbuf_refcnt_set(temp, 1);
+       rte_pktmbuf_free_seg(temp);
+
+       return (void *)first_seg;
+}
+
 static inline struct rte_mbuf *__attribute__((hot))
 eth_fd_to_mbuf(const struct qbman_fd *fd)
 {
@@ -171,7 +230,81 @@ eth_fd_to_mbuf(const struct qbman_fd *fd)
        return mbuf;
 }
 
-static void __rte_noinline __attribute__((hot))
+static int __attribute__ ((noinline)) __attribute__((hot))
+eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
+                 struct qbman_fd *fd, uint16_t bpid)
+{
+       struct rte_mbuf *cur_seg = mbuf, *prev_seg, *mi, *temp;
+       struct qbman_sge *sgt, *sge = NULL;
+       int i;
+
+       /* First Prepare FD to be transmited*/
+       /* Resetting the buffer pool id and offset field*/
+       fd->simple.bpid_offset = 0;
+
+       temp = rte_pktmbuf_alloc(mbuf->pool);
+       if (temp == NULL) {
+               PMD_TX_LOG(ERR, "No memory to allocate S/G table");
+               return -ENOMEM;
+       }
+
+       DPAA2_SET_FD_ADDR(fd, DPAA2_MBUF_VADDR_TO_IOVA(temp));
+       DPAA2_SET_FD_LEN(fd, mbuf->pkt_len);
+       DPAA2_SET_FD_OFFSET(fd, temp->data_off);
+       DPAA2_SET_FD_BPID(fd, bpid);
+       DPAA2_SET_FD_ASAL(fd, DPAA2_ASAL_VAL);
+       DPAA2_FD_SET_FORMAT(fd, qbman_fd_sg);
+       /*Set Scatter gather table and Scatter gather entries*/
+       sgt = (struct qbman_sge *)(
+                       (uint64_t)DPAA2_IOVA_TO_VADDR(DPAA2_GET_FD_ADDR(fd))
+                       + DPAA2_GET_FD_OFFSET(fd));
+
+       for (i = 0; i < mbuf->nb_segs; i++) {
+               sge = &sgt[i];
+               /*Resetting the buffer pool id and offset field*/
+               sge->fin_bpid_offset = 0;
+               DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(cur_seg));
+               DPAA2_SET_FLE_OFFSET(sge, cur_seg->data_off);
+               sge->length = cur_seg->data_len;
+               if (RTE_MBUF_DIRECT(cur_seg)) {
+                       if (rte_mbuf_refcnt_read(cur_seg) > 1) {
+                               /* If refcnt > 1, invalid bpid is set to ensure
+                                * buffer is not freed by HW
+                                */
+                               DPAA2_SET_FLE_IVP(sge);
+                               rte_mbuf_refcnt_update(cur_seg, -1);
+                       } else
+                               DPAA2_SET_FLE_BPID(sge,
+                                               mempool_to_bpid(cur_seg->pool));
+                       cur_seg = cur_seg->next;
+               } else {
+                       /* Get owner MBUF from indirect buffer */
+                       mi = rte_mbuf_from_indirect(cur_seg);
+                       if (rte_mbuf_refcnt_read(mi) > 1) {
+                               /* If refcnt > 1, invalid bpid is set to ensure
+                                * owner buffer is not freed by HW
+                                */
+                               DPAA2_SET_FLE_IVP(sge);
+                       } else {
+                               DPAA2_SET_FLE_BPID(sge,
+                                                  mempool_to_bpid(mi->pool));
+                               rte_mbuf_refcnt_update(mi, 1);
+                       }
+                       prev_seg = cur_seg;
+                       cur_seg = cur_seg->next;
+                       prev_seg->next = NULL;
+                       rte_pktmbuf_free(prev_seg);
+               }
+       }
+       DPAA2_SG_SET_FINAL(sge, true);
+       return 0;
+}
+
+static void
+eth_mbuf_to_fd(struct rte_mbuf *mbuf,
+              struct qbman_fd *fd, uint16_t bpid) __attribute__((unused));
+
+static void __attribute__ ((noinline)) __attribute__((hot))
 eth_mbuf_to_fd(struct rte_mbuf *mbuf,
               struct qbman_fd *fd, uint16_t bpid)
 {
@@ -190,8 +323,22 @@ eth_mbuf_to_fd(struct rte_mbuf *mbuf,
                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));
-}
+       if (RTE_MBUF_DIRECT(mbuf)) {
+               if (rte_mbuf_refcnt_read(mbuf) > 1) {
+                       DPAA2_SET_FD_IVP(fd);
+                       rte_mbuf_refcnt_update(mbuf, -1);
+               }
+       } else {
+               struct rte_mbuf *mi;
 
+               mi = rte_mbuf_from_indirect(mbuf);
+               if (rte_mbuf_refcnt_read(mi) > 1)
+                       DPAA2_SET_FD_IVP(fd);
+               else
+                       rte_mbuf_refcnt_update(mi, 1);
+               rte_pktmbuf_free(mbuf);
+       }
+}
 
 static inline int __attribute__((hot))
 eth_copy_mbuf_to_fd(struct rte_mbuf *mbuf,
@@ -203,7 +350,6 @@ eth_copy_mbuf_to_fd(struct rte_mbuf *mbuf,
        if (rte_dpaa2_mbuf_alloc_bulk(
                rte_dpaa2_bpid_info[bpid].bp_list->mp, &mb, 1)) {
                PMD_TX_LOG(WARNING, "Unable to allocated DPAA2 buffer");
-               rte_pktmbuf_free(mbuf);
                return -1;
        }
        m = (struct rte_mbuf *)mb;
@@ -235,8 +381,6 @@ eth_copy_mbuf_to_fd(struct rte_mbuf *mbuf,
                rte_dpaa2_bpid_info[DPAA2_GET_FD_BPID(fd)].meta_data_size,
                DPAA2_GET_FD_OFFSET(fd),
                DPAA2_GET_FD_LEN(fd));
-       /*free the original packet */
-       rte_pktmbuf_free(mbuf);
 
        return 0;
 }
@@ -275,7 +419,7 @@ dpaa2_dev_prefetch_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
                qbman_pull_desc_set_storage(&pulldesc, dq_storage,
                        (dma_addr_t)(DPAA2_VADDR_TO_IOVA(dq_storage)), 1);
                if (check_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index)) {
-                       while (!qbman_check_command_complete(swp,
+                       while (!qbman_check_command_complete(
                               get_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index)))
                                ;
                        clear_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index);
@@ -298,7 +442,7 @@ dpaa2_dev_prefetch_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
         * Also seems like the SWP is shared between the Ethernet Driver
         * and the SEC driver.
         */
-       while (!qbman_check_command_complete(swp, dq_storage))
+       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);
@@ -306,7 +450,7 @@ dpaa2_dev_prefetch_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
                /* Loop until the dq_storage is updated with
                 * new token by QBMAN
                 */
-               while (!qbman_result_has_new_result(swp, dq_storage))
+               while (!qbman_check_new_result(dq_storage))
                        ;
                rte_prefetch0((void *)((uint64_t)(dq_storage + 1)));
                /* Check whether Last Pull command is Expired and
@@ -325,10 +469,11 @@ dpaa2_dev_prefetch_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
                rte_prefetch0((void *)((uint64_t)DPAA2_GET_FD_ADDR(fd[num_rx])
                                + DPAA2_FD_PTA_SIZE + 16));
 
-               bufs[num_rx] = eth_fd_to_mbuf(fd[num_rx]);
+               if (unlikely(DPAA2_FD_GET_FORMAT(fd[num_rx]) == qbman_fd_sg))
+                       bufs[num_rx] = eth_sg_fd_to_mbuf(fd[num_rx]);
+               else
+                       bufs[num_rx] = eth_fd_to_mbuf(fd[num_rx]);
                bufs[num_rx]->port = dev->data->port_id;
-               if (dev->data->dev_conf.rxmode.hw_vlan_strip)
-                       rte_vlan_strip(bufs[num_rx]);
 
                if (dev->data->dev_conf.rxmode.hw_vlan_strip)
                        rte_vlan_strip(bufs[num_rx]);
@@ -338,7 +483,7 @@ dpaa2_dev_prefetch_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
        }
 
        if (check_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index)) {
-               while (!qbman_check_command_complete(swp,
+               while (!qbman_check_command_complete(
                       get_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index)))
                        ;
                clear_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index);
@@ -369,6 +514,26 @@ dpaa2_dev_prefetch_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
        return num_rx;
 }
 
+void __attribute__((hot))
+dpaa2_dev_process_parallel_event(struct qbman_swp *swp,
+                                const struct qbman_fd *fd,
+                                const struct qbman_result *dq,
+                                struct dpaa2_queue *rxq,
+                                struct rte_event *ev)
+{
+       ev->mbuf = eth_fd_to_mbuf(fd);
+
+       ev->flow_id = rxq->ev.flow_id;
+       ev->sub_event_type = rxq->ev.sub_event_type;
+       ev->event_type = RTE_EVENT_TYPE_ETHDEV;
+       ev->op = RTE_EVENT_OP_NEW;
+       ev->sched_type = rxq->ev.sched_type;
+       ev->queue_id = rxq->ev.queue_id;
+       ev->priority = rxq->ev.priority;
+
+       qbman_swp_dqrr_consume(swp, dq);
+}
+
 /*
  * Callback to handle sending packets through WRIOP based interface
  */
@@ -376,9 +541,10 @@ 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;
+       uint32_t loop, retry_count;
        int32_t ret;
        struct qbman_fd fd_arr[MAX_TX_RING_SLOTS];
+       struct rte_mbuf *mi;
        uint32_t frames_to_send;
        struct rte_mempool *mp;
        struct qbman_eq_desc eqdesc;
@@ -410,8 +576,13 @@ dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
        /*Clear the unused FD fields before sending*/
        while (nb_pkts) {
                /*Check if the queue is congested*/
-               if (qbman_result_SCN_state_in_mem(dpaa2_q->cscn))
-                       goto skip_tx;
+               retry_count = 0;
+               while (qbman_result_SCN_state(dpaa2_q->cscn)) {
+                       retry_count++;
+                       /* Retry for some time before giving up */
+                       if (retry_count > CONG_RETRY_COUNT)
+                               goto skip_tx;
+               }
 
                frames_to_send = (nb_pkts >> 3) ? MAX_TX_RING_SLOTS : nb_pkts;
 
@@ -419,35 +590,52 @@ dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
                        fd_arr[loop].simple.frc = 0;
                        DPAA2_RESET_FD_CTRL((&fd_arr[loop]));
                        DPAA2_SET_FD_FLC((&fd_arr[loop]), NULL);
-                       mp = (*bufs)->pool;
+                       if (RTE_MBUF_DIRECT(*bufs)) {
+                               mp = (*bufs)->pool;
+                       } else {
+                               mi = rte_mbuf_from_indirect(*bufs);
+                               mp = mi->pool;
+                       }
                        /* Not a hw_pkt pool allocated frame */
+                       if (unlikely(!mp || !priv->bp_list)) {
+                               PMD_TX_LOG(ERR, "err: no bpool attached");
+                               goto send_n_return;
+                       }
+
                        if (mp->ops_index != priv->bp_list->dpaa2_ops_index) {
                                PMD_TX_LOG(ERR, "non hw offload bufffer ");
                                /* alloc should be from the default buffer pool
                                 * attached to this interface
                                 */
-                               if (priv->bp_list) {
-                                       bpid = priv->bp_list->buf_pool.bpid;
-                               } else {
-                                       PMD_TX_LOG(ERR, "errr: why no bpool"
-                                                  " attached");
-                                       num_tx = 0;
-                                       goto skip_tx;
+                               bpid = priv->bp_list->buf_pool.bpid;
+
+                               if (unlikely((*bufs)->nb_segs > 1)) {
+                                       PMD_TX_LOG(ERR, "S/G support not added"
+                                               " for non hw offload buffer");
+                                       goto send_n_return;
                                }
                                if (eth_copy_mbuf_to_fd(*bufs,
                                                        &fd_arr[loop], bpid)) {
-                                       bufs++;
-                                       continue;
+                                       goto send_n_return;
                                }
+                               /* free the original packet */
+                               rte_pktmbuf_free(*bufs);
                        } else {
                                bpid = mempool_to_bpid(mp);
-                               eth_mbuf_to_fd(*bufs, &fd_arr[loop], bpid);
+                               if (unlikely((*bufs)->nb_segs > 1)) {
+                                       if (eth_mbuf_to_sg_fd(*bufs,
+                                                       &fd_arr[loop], bpid))
+                                               goto send_n_return;
+                               } else {
+                                       eth_mbuf_to_fd(*bufs,
+                                                      &fd_arr[loop], bpid);
+                               }
                        }
                        bufs++;
                }
                loop = 0;
                while (loop < frames_to_send) {
-                       loop += qbman_swp_send_multiple(swp, &eqdesc,
+                       loop += qbman_swp_enqueue_multiple(swp, &eqdesc,
                                        &fd_arr[loop], frames_to_send - loop);
                }
 
@@ -455,6 +643,45 @@ dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
                dpaa2_q->tx_pkts += frames_to_send;
                nb_pkts -= frames_to_send;
        }
+       return num_tx;
+
+send_n_return:
+       /* send any already prepared fd */
+       if (loop) {
+               unsigned int i = 0;
+
+               while (i < loop) {
+                       i += qbman_swp_enqueue_multiple(swp, &eqdesc,
+                                                       &fd_arr[i], loop - i);
+               }
+               num_tx += loop;
+               dpaa2_q->tx_pkts += loop;
+       }
 skip_tx:
        return num_tx;
 }
+
+/**
+ * Dummy DPDK callback for TX.
+ *
+ * This function is used to temporarily replace the real callback during
+ * unsafe control operations on the queue, or in case of error.
+ *
+ * @param dpdk_txq
+ *   Generic pointer to TX queue structure.
+ * @param[in] pkts
+ *   Packets to transmit.
+ * @param pkts_n
+ *   Number of packets in array.
+ *
+ * @return
+ *   Number of packets successfully transmitted (<= pkts_n).
+ */
+uint16_t
+dummy_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+{
+       (void)queue;
+       (void)bufs;
+       (void)nb_pkts;
+       return 0;
+}