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dp-packet: Add OVS offloading API.

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As a preparation for tracking inner checksums, separate Rx checksum
status from the DPDK ol_flags field.
To minimize the cost of translating from DPDK API to OVS API, simply map
OVS flags to DPDK Rx mbuf flags.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
This commit is contained in:
David Marchand
2025-06-17 09:20:54 +02:00
committed by Ilya Maximets
parent 19ef1b1f0f
commit d29ba0abdc
6 changed files with 96 additions and 77 deletions
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22
lib/netdev-dpdk.c
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@@ -2627,6 +2627,24 @@ netdev_dpdk_rxq_dealloc(struct netdev_rxq *rxq)
rte_free(rx);
}
static inline void
netdev_dpdk_batch_init_packet_fields(struct dp_packet_batch *batch)
{
struct dp_packet *packet;
DP_PACKET_BATCH_FOR_EACH (i, packet, batch) {
dp_packet_reset_cutlen(packet);
packet->packet_type = htonl(PT_ETH);
packet->has_hash = !!(packet->mbuf.ol_flags & RTE_MBUF_F_RX_RSS_HASH);
packet->has_mark = !!(packet->mbuf.ol_flags & RTE_MBUF_F_RX_FDIR_ID);
packet->offloads =
packet->mbuf.ol_flags & (RTE_MBUF_F_RX_IP_CKSUM_BAD
| RTE_MBUF_F_RX_IP_CKSUM_GOOD
| RTE_MBUF_F_RX_L4_CKSUM_BAD
| RTE_MBUF_F_RX_L4_CKSUM_GOOD);
}
}
/* Prepare the packet for HWOL.
* Return True if the packet is OK to continue. */
static bool
@@ -2976,7 +2994,7 @@ netdev_dpdk_vhost_rxq_recv(struct netdev_rxq *rxq,
}
batch->count = nb_rx;
dp_packet_batch_init_packet_fields(batch);
netdev_dpdk_batch_init_packet_fields(batch);
return 0;
}
@@ -3027,7 +3045,7 @@ netdev_dpdk_rxq_recv(struct netdev_rxq *rxq, struct dp_packet_batch *batch,
}
batch->count = nb_rx;
dp_packet_batch_init_packet_fields(batch);
netdev_dpdk_batch_init_packet_fields(batch);
if (qfill) {
if (nb_rx == NETDEV_MAX_BURST) {