d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

net/af_packet: support 802.1Q VLAN

Browse Source 
AF_PACKET has some flags to check on the receive side for 802.1Q
information.  If present, we copy into the mbuf.  For transmit, we
insert any 802.1Q information into the packet before copying to the ring.

Signed-off-by: Chas Williams <ciwillia@brocade.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Chas Williams 2017-01-05 08:53:44 -05:00 committed by Ferruh Yigit
parent 218259590e
commit 23deeebfcf
1 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/net/af_packet/rte_eth_af_packet.c
View File

@ -161,6 +161,12 @@ eth_af_packet_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
pbuf = (uint8_t *) ppd + ppd->tp_mac;
memcpy(rte_pktmbuf_mtod(mbuf, void *), pbuf, rte_pktmbuf_data_len(mbuf));
/* check for vlan info */
if (ppd->tp_status & TP_STATUS_VLAN_VALID) {
mbuf->vlan_tci = ppd->tp_vlan_tci;
mbuf->ol_flags |= (PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED);
}
/* release incoming frame and advance ring buffer */
ppd->tp_status = TP_STATUS_KERNEL;
if (++framenum >= framecount)
@ -214,6 +220,14 @@ eth_af_packet_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
continue;
}
/* insert vlan info if necessary */
if (mbuf->ol_flags & PKT_TX_VLAN_PKT) {
if (rte_vlan_insert(&mbuf)) {
rte_pktmbuf_free(mbuf);
continue;
}
}
/* point at the next incoming frame */
if ((ppd->tp_status != TP_STATUS_AVAILABLE) &&
(poll(&pfd, 1, -1) < 0))