[ovs-dev] [PATCH 09/62] netdev-offload-dpdk: Add consumed_mask check in parse_flow_match
Tao YunXiang
taoyunxiang at cmss.chinamobile.com
Mon Dec 28 09:24:27 UTC 2020
From: Liuchang <liuchang at cmss.chinamobile.com>
Code Source From: Self Code
Description:
Add consumed_mask check in parse_flow_match
Jira: #[Optional]
市场项目编号(名称):[Optional]
---
lib/netdev-offload-dpdk.c | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/lib/netdev-offload-dpdk.c b/lib/netdev-offload-dpdk.c
index 05c7558..5cce175 100644
--- a/lib/netdev-offload-dpdk.c
+++ b/lib/netdev-offload-dpdk.c
@@ -568,6 +568,14 @@ parse_flow_match(struct flow_patterns *patterns,
{
uint8_t *next_proto_mask = NULL;
uint8_t proto = 0;
+ struct flow *consumed_masks;
+
+ consumed_masks = &match->wc.masks;
+ /* Not attemp to offload in_port/recirc_id ?
+ memset(&consumed_masks->in_port, 0, sizeof consumed_masks->in_port);
+ consumed_masks->recirc_id = 0;
+ */
+ consumed_masks->packet_type = 0;
/* Eth */
if (!eth_addr_is_zero(match->wc.masks.dl_src) ||
@@ -586,6 +594,9 @@ parse_flow_match(struct flow_patterns *patterns,
mask->type = match->wc.masks.dl_type;
add_flow_pattern(patterns, RTE_FLOW_ITEM_TYPE_ETH, spec, mask);
+ memset(&consumed_masks->dl_dst, 0, sizeof consumed_masks->dl_dst);
+ memset(&consumed_masks->dl_src, 0, sizeof consumed_masks->dl_src);
+
} else {
/*
* If user specifies a flow (like UDP flow) without L2 patterns,
@@ -596,6 +607,7 @@ parse_flow_match(struct flow_patterns *patterns,
*/
add_flow_pattern(patterns, RTE_FLOW_ITEM_TYPE_ETH, NULL, NULL);
}
+ consumed_masks->dl_type = 0;
/* VLAN */
if (match->wc.masks.vlans[0].tci && match->flow.vlans[0].tci) {
@@ -612,6 +624,7 @@ parse_flow_match(struct flow_patterns *patterns,
add_flow_pattern(patterns, RTE_FLOW_ITEM_TYPE_VLAN, spec, mask);
}
+ memset(&consumed_masks->vlans[0], 0, sizeof consumed_masks->vlans[0]);
/* do not attempt to offload frags. */
if (match->flow.nw_frag != OVS_FRAG_TYPE_NONE && match->wc.masks.nw_frag) {
@@ -619,6 +632,7 @@ parse_flow_match(struct flow_patterns *patterns,
match->wc.masks.nw_frag);
return -1;
}
+ consumed_masks->nw_frag = 0;
/* IP v4 */
if (match->flow.dl_type == htons(ETH_TYPE_IP)) {
@@ -641,6 +655,12 @@ parse_flow_match(struct flow_patterns *patterns,
add_flow_pattern(patterns, RTE_FLOW_ITEM_TYPE_IPV4, spec, mask);
+ consumed_masks->nw_tos = 0;
+ consumed_masks->nw_ttl = 0;
+ consumed_masks->nw_proto = 0;
+ consumed_masks->nw_src = 0;
+ consumed_masks->nw_dst = 0;
+
/* Save proto for L4 protocol setup. */
proto = spec->hdr.next_proto_id &
mask->hdr.next_proto_id;
@@ -679,6 +699,10 @@ parse_flow_match(struct flow_patterns *patterns,
add_flow_pattern(patterns, RTE_FLOW_ITEM_TYPE_TCP, spec, mask);
+ consumed_masks->tp_src = 0;
+ consumed_masks->tp_dst = 0;
+ consumed_masks->tcp_flags = 0;
+
/* proto == TCP and ITEM_TYPE_TCP, thus no need for proto match. */
if (next_proto_mask) {
*next_proto_mask = 0;
@@ -697,6 +721,9 @@ parse_flow_match(struct flow_patterns *patterns,
add_flow_pattern(patterns, RTE_FLOW_ITEM_TYPE_UDP, spec, mask);
+ consumed_masks->tp_src = 0;
+ consumed_masks->tp_dst = 0;
+
/* proto == UDP and ITEM_TYPE_UDP, thus no need for proto match. */
if (next_proto_mask) {
*next_proto_mask = 0;
@@ -715,6 +742,9 @@ parse_flow_match(struct flow_patterns *patterns,
add_flow_pattern(patterns, RTE_FLOW_ITEM_TYPE_SCTP, spec, mask);
+ consumed_masks->tp_src = 0;
+ consumed_masks->tp_dst = 0;
+
/* proto == SCTP and ITEM_TYPE_SCTP, thus no need for proto match. */
if (next_proto_mask) {
*next_proto_mask = 0;
@@ -733,6 +763,9 @@ parse_flow_match(struct flow_patterns *patterns,
add_flow_pattern(patterns, RTE_FLOW_ITEM_TYPE_ICMP, spec, mask);
+ consumed_masks->tp_src = 0;
+ consumed_masks->tp_dst = 0;
+
/* proto == ICMP and ITEM_TYPE_ICMP, thus no need for proto match. */
if (next_proto_mask) {
*next_proto_mask = 0;
@@ -741,6 +774,12 @@ parse_flow_match(struct flow_patterns *patterns,
add_flow_pattern(patterns, RTE_FLOW_ITEM_TYPE_END, NULL, NULL);
+ if (!is_all_zeros(consumed_masks, sizeof *consumed_masks)) {
+ VLOG_DBG("Cannot match all matches. dl_type=0x%04x",
+ ntohs(match->flow.dl_type));
+ return -1;
+ }
+
return 0;
}
--
1.8.3.1
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