[dpdk-dev] [PATCH 3/8] net/vmxnet3: gather offload data on first and last segment
Didier Pallard
didier.pallard at 6wind.com
Wed Mar 28 17:43:44 CEST 2018
Offloads are split between first and last segment of a packet.
Call a single vmxnet3_rx_offload function that will contain all
offload operations. This patch does not introduce any code modification.
Pass a vmxnet3_hw as parameter to the function, it is not presently
used in this patch, but will be later used for TSO offloads.
Signed-off-by: Didier Pallard <didier.pallard at 6wind.com>
---
drivers/net/vmxnet3/vmxnet3_rxtx.c | 56 +++++++++++++++++++++-----------------
1 file changed, 31 insertions(+), 25 deletions(-)
diff --git a/drivers/net/vmxnet3/vmxnet3_rxtx.c b/drivers/net/vmxnet3/vmxnet3_rxtx.c
index 156dc8e52..27f17ef0a 100644
--- a/drivers/net/vmxnet3/vmxnet3_rxtx.c
+++ b/drivers/net/vmxnet3/vmxnet3_rxtx.c
@@ -648,28 +648,40 @@ vmxnet3_post_rx_bufs(vmxnet3_rx_queue_t *rxq, uint8_t ring_id)
/* Receive side checksum and other offloads */
-static void
-vmxnet3_rx_offload(const Vmxnet3_RxCompDesc *rcd, struct rte_mbuf *rxm)
+static inline void
+vmxnet3_rx_offload(struct vmxnet3_hw *hw, const Vmxnet3_RxCompDesc *rcd,
+ struct rte_mbuf *rxm, const uint8_t sop)
{
- /* Check for RSS */
- if (rcd->rssType != VMXNET3_RCD_RSS_TYPE_NONE) {
- rxm->ol_flags |= PKT_RX_RSS_HASH;
- rxm->hash.rss = rcd->rssHash;
- }
+ (void)hw;
+
+ /* Offloads set in sop */
+ if (sop) {
+ /* Check for RSS */
+ if (rcd->rssType != VMXNET3_RCD_RSS_TYPE_NONE) {
+ rxm->ol_flags |= PKT_RX_RSS_HASH;
+ rxm->hash.rss = rcd->rssHash;
+ }
- /* Check packet type, checksum errors, etc. Only support IPv4 for now. */
- if (rcd->v4) {
- rxm->packet_type = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
+ /* Check packet type, checksum errors. Only IPv4 for now. */
+ if (rcd->v4) {
+ rxm->packet_type = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
- if (!rcd->cnc) {
- if (!rcd->ipc)
- rxm->ol_flags |= PKT_RX_IP_CKSUM_BAD;
+ if (!rcd->cnc) {
+ if (!rcd->ipc)
+ rxm->ol_flags |= PKT_RX_IP_CKSUM_BAD;
- if ((rcd->tcp || rcd->udp) && !rcd->tuc)
- rxm->ol_flags |= PKT_RX_L4_CKSUM_BAD;
+ if ((rcd->tcp || rcd->udp) && !rcd->tuc)
+ rxm->ol_flags |= PKT_RX_L4_CKSUM_BAD;
+ }
+ } else {
+ rxm->packet_type = RTE_PTYPE_UNKNOWN;
+ }
+ } else { /* Offloads set in eop */
+ /* Check for hardware stripped VLAN tag */
+ if (rcd->ts) {
+ rxm->ol_flags |= (PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED);
+ rxm->vlan_tci = rte_le_to_cpu_16((uint16_t)rcd->tci);
}
- } else {
- rxm->packet_type = RTE_PTYPE_UNKNOWN;
}
}
@@ -801,7 +813,7 @@ vmxnet3_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
}
rxq->start_seg = rxm;
- vmxnet3_rx_offload(rcd, rxm);
+ vmxnet3_rx_offload(hw, rcd, rxm, 1);
} else {
struct rte_mbuf *start = rxq->start_seg;
@@ -817,13 +829,7 @@ vmxnet3_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
if (rcd->eop) {
struct rte_mbuf *start = rxq->start_seg;
- /* Check for hardware stripped VLAN tag */
- if (rcd->ts) {
- start->ol_flags |= (PKT_RX_VLAN |
- PKT_RX_VLAN_STRIPPED);
- start->vlan_tci = rte_le_to_cpu_16((uint16_t)rcd->tci);
- }
-
+ vmxnet3_rx_offload(hw, rcd, start, 0);
rx_pkts[nb_rx++] = start;
rxq->start_seg = NULL;
}
--
2.11.0
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