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From: Hemant Agrawal <hemant.agrawal@nxp.com>
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Subject: [dpdk-dev] [PATCH v12 18/22] net/dpaa2: handle non-hardware backed
buffer pool
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Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
drivers/net/dpaa2/dpaa2_rxtx.c | 75 ++++++++++++++++++++++++++++++++++++++++--
1 file changed, 73 insertions(+), 2 deletions(-)
diff --git a/drivers/net/dpaa2/dpaa2_rxtx.c b/drivers/net/dpaa2/dpaa2_rxtx.c
index c1ea33a..deec210 100644
--- a/drivers/net/dpaa2/dpaa2_rxtx.c
+++ b/drivers/net/dpaa2/dpaa2_rxtx.c
@@ -191,6 +191,55 @@ static void __attribute__ ((noinline)) __attribute__((hot))
DPAA2_GET_FD_BPID(fd), DPAA2_GET_FD_LEN(fd));
}
+
+static inline int __attribute__((hot))
+eth_copy_mbuf_to_fd(struct rte_mbuf *mbuf,
+ struct qbman_fd *fd, uint16_t bpid)
+{
+ struct rte_mbuf *m;
+ void *mb = NULL;
+
+ 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;
+ memcpy((char *)m->buf_addr + mbuf->data_off,
+ (void *)((char *)mbuf->buf_addr + mbuf->data_off),
+ mbuf->pkt_len);
+
+ /* Copy required fields */
+ m->data_off = mbuf->data_off;
+ m->ol_flags = mbuf->ol_flags;
+ m->packet_type = mbuf->packet_type;
+ m->tx_offload = mbuf->tx_offload;
+
+ /*Resetting the buffer pool id and offset field*/
+ fd->simple.bpid_offset = 0;
+
+ DPAA2_SET_FD_ADDR(fd, (m->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 BMAN buf addr %p",
+ (void *)mbuf, mbuf->buf_addr);
+
+ PMD_TX_LOG(DEBUG, " fdaddr =%lx bpid =%d meta =%d off =%d, len =%d",
+ DPAA2_GET_FD_ADDR(fd),
+ DPAA2_GET_FD_BPID(fd),
+ 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;
+}
+
uint16_t
dpaa2_dev_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
{
@@ -331,8 +380,29 @@ static void __attribute__ ((noinline)) __attribute__((hot))
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);
+ /* Not a hw_pkt pool allocated frame */
+ 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;
+ }
+ if (eth_copy_mbuf_to_fd(*bufs,
+ &fd_arr[loop], bpid)) {
+ bufs++;
+ continue;
+ }
+ } else {
+ bpid = mempool_to_bpid(mp);
+ eth_mbuf_to_fd(*bufs, &fd_arr[loop], bpid);
+ }
bufs++;
}
loop = 0;
@@ -345,5 +415,6 @@ static void __attribute__ ((noinline)) __attribute__((hot))
dpaa2_q->tx_pkts += frames_to_send;
nb_pkts -= frames_to_send;
}
+skip_tx:
return num_tx;
}
--
1.9.1