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net/af_packet: support Tx scattered mbuf input

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Signed-off-by: Wenfeng Liu <liuwf@arraynetworks.com.cn>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Wenfeng Liu 2017-08-07 09:45:38 +00:00 committed by Ferruh Yigit
parent d77d07391d
commit ef6cb930d1
1 changed files with 12 additions and 3 deletions
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15
drivers/net/af_packet/rte_eth_af_packet.c
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@ -216,7 +216,7 @@ eth_af_packet_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
mbuf = *bufs++;
/* drop oversized packets */
if (rte_pktmbuf_data_len(mbuf) > pkt_q->frame_data_size) {
if (mbuf->pkt_len > pkt_q->frame_data_size) {
rte_pktmbuf_free(mbuf);
continue;
}
@ -237,8 +237,17 @@ eth_af_packet_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
/* copy the tx frame data */
pbuf = (uint8_t *) ppd + TPACKET2_HDRLEN -
sizeof(struct sockaddr_ll);
memcpy(pbuf, rte_pktmbuf_mtod(mbuf, void*), rte_pktmbuf_data_len(mbuf));
ppd->tp_len = ppd->tp_snaplen = rte_pktmbuf_data_len(mbuf);
struct rte_mbuf *tmp_mbuf = mbuf;
while (tmp_mbuf) {
uint16_t data_len = rte_pktmbuf_data_len(tmp_mbuf);
memcpy(pbuf, rte_pktmbuf_mtod(tmp_mbuf, void*), data_len);
pbuf += data_len;
tmp_mbuf = tmp_mbuf->next;
}
ppd->tp_len = mbuf->pkt_len;
ppd->tp_snaplen = mbuf->pkt_len;
/* release incoming frame and advance ring buffer */
ppd->tp_status = TP_STATUS_SEND_REQUEST;