net/dpaa: support external buffers in Tx

This patch support tx of external buffers

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>

diff --git a/drivers/net/dpaa/dpaa_rxtx.c b/drivers/net/dpaa/dpaa_rxtx.c
index e38fba2..423de40 100644 (file)
--- a/drivers/net/dpaa/dpaa_rxtx.c
+++ b/drivers/net/dpaa/dpaa_rxtx.c
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  *
  *   Copyright 2016 Freescale Semiconductor, Inc. All rights reserved.
- *   Copyright 2017,2019 NXP
+ *   Copyright 2017,2019-2021 NXP
  *
  */
 
@@ -334,7 +334,7 @@ dpaa_unsegmented_checksum(struct rte_mbuf *mbuf, struct qm_fd *fd_arr)
        }
 }
 
-struct rte_mbuf *
+static struct rte_mbuf *
 dpaa_eth_sg_to_mbuf(const struct qm_fd *fd, uint32_t ifid)
 {
        struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(fd->bpid);
@@ -791,13 +791,12 @@ uint16_t dpaa_eth_queue_rx(void *q,
        return num_rx;
 }
 
-int
+static int
 dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
                struct qm_fd *fd,
-               uint32_t bpid)
+               struct dpaa_bp_info *bp_info)
 {
        struct rte_mbuf *cur_seg = mbuf, *prev_seg = NULL;
-       struct dpaa_bp_info *bp_info = DPAA_BPID_TO_POOL_INFO(bpid);
        struct rte_mbuf *temp, *mi;
        struct qm_sg_entry *sg_temp, *sgt;
        int i = 0;
@@ -840,7 +839,7 @@ dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
        fd->format = QM_FD_SG;
        fd->addr = temp->buf_iova;
        fd->offset = temp->data_off;
-       fd->bpid = bpid;
+       fd->bpid = bp_info ? bp_info->bpid : 0xff;
        fd->length20 = mbuf->pkt_len;
 
        while (i < DPAA_SGT_MAX_ENTRIES) {
@@ -862,6 +861,9 @@ dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
                                        DPAA_MEMPOOL_TO_BPID(cur_seg->pool);
                        }
                        cur_seg = cur_seg->next;
+               } else if (RTE_MBUF_HAS_EXTBUF(cur_seg)) {
+                       sg_temp->bpid = 0xff;
+                       cur_seg = cur_seg->next;
                } else {
                        /* Get owner MBUF from indirect buffer */
                        mi = rte_mbuf_from_indirect(cur_seg);
@@ -911,6 +913,9 @@ tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf,
                         */
                        DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
                }
+       } else if (RTE_MBUF_HAS_EXTBUF(mbuf)) {
+               DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr,
+                               bp_info ? bp_info->bpid : 0xff);
        } else {
                /* This is data-containing core mbuf: 'mi' */
                mi = rte_mbuf_from_indirect(mbuf);
@@ -929,7 +934,8 @@ tx_on_dpaa_pool_unsegmented(struct rte_mbuf *mbuf,
                         * been released by BMAN.
                         */
                        rte_mbuf_refcnt_update(mi, 1);
-                       DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr, bp_info->bpid);
+                       DPAA_MBUF_TO_CONTIG_FD(mbuf, fd_arr,
+                                               bp_info ? bp_info->bpid : 0xff);
                }
                rte_pktmbuf_free(mbuf);
        }
@@ -951,7 +957,7 @@ tx_on_dpaa_pool(struct rte_mbuf *mbuf,
                tx_on_dpaa_pool_unsegmented(mbuf, bp_info, fd_arr);
        } else if (mbuf->nb_segs > 1 &&
                   mbuf->nb_segs <= DPAA_SGT_MAX_ENTRIES) {
-               if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info->bpid)) {
+               if (dpaa_eth_mbuf_to_sg_fd(mbuf, fd_arr, bp_info)) {
                        DPAA_PMD_DEBUG("Unable to create Scatter Gather FD");
                        return 1;
                }
@@ -1055,6 +1061,7 @@ dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
        uint16_t state;
        int ret, realloc_mbuf = 0;
        uint32_t seqn, index, flags[DPAA_TX_BURST_SIZE] = {0};
+       struct rte_mbuf **orig_bufs = bufs;
 
        if (unlikely(!DPAA_PER_LCORE_PORTAL)) {
                ret = rte_dpaa_portal_init((void *)0);
@@ -1112,6 +1119,11 @@ dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
                                mp = mi->pool;
                        }
 
+                       if (unlikely(RTE_MBUF_HAS_EXTBUF(mbuf))) {
+                               bp_info = NULL;
+                               goto indirect_buf;
+                       }
+
                        bp_info = DPAA_MEMPOOL_TO_POOL_INFO(mp);
                        if (unlikely(mp->ops_index != bp_info->dpaa_ops_index ||
                                     realloc_mbuf == 1)) {
@@ -1130,7 +1142,7 @@ dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
                                mbuf = temp_mbuf;
                                realloc_mbuf = 0;
                        }
-
+indirect_buf:
                        state = tx_on_dpaa_pool(mbuf, bp_info,
                                                &fd_arr[loop]);
                        if (unlikely(state)) {
@@ -1157,6 +1169,15 @@ send_pkts:
 
        DPAA_DP_LOG(DEBUG, "Transmitted %d buffers on queue: %p", sent, q);
 
+
+       loop = 0;
+       while (loop < sent) {
+               if (unlikely(RTE_MBUF_HAS_EXTBUF(*orig_bufs)))
+                       rte_pktmbuf_free(*orig_bufs);
+               orig_bufs++;
+               loop++;
+       }
+
        return sent;
 }
 

diff --git a/drivers/net/dpaa/dpaa_rxtx.h b/drivers/net/dpaa/dpaa_rxtx.h
index d9d7e04..99e0919 100644 (file)
--- a/drivers/net/dpaa/dpaa_rxtx.h
+++ b/drivers/net/dpaa/dpaa_rxtx.h
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  *
  *   Copyright 2016 Freescale Semiconductor, Inc. All rights reserved.
- *   Copyright 2017,2020 NXP
+ *   Copyright 2017,2020-2021 NXP
  *
  */
 
@@ -279,12 +279,6 @@ uint16_t dpaa_eth_tx_drop_all(void *q  __rte_unused,
                              struct rte_mbuf **bufs __rte_unused,
                              uint16_t nb_bufs __rte_unused);
 
-struct rte_mbuf *dpaa_eth_sg_to_mbuf(const struct qm_fd *fd, uint32_t ifid);
-
-int dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
-                          struct qm_fd *fd,
-                          uint32_t bpid);
-
 uint16_t dpaa_free_mbuf(const struct qm_fd *fd);
 void dpaa_rx_cb(struct qman_fq **fq,
                struct qm_dqrr_entry **dqrr, void **bufs, int num_bufs);