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net/octeontx2: support GRE key parsing

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Adding support to parse GRE KEY for octeontx2 Flow.
Matching on GRE Key will only work, if checksum and routing
bits in the GRE header are equal to 0.

Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
This commit is contained in:
Kiran Kumar K 2019-07-26 14:33:03 +05:30 committed by Ferruh Yigit
parent 122135e73c
commit e0e5d23b3c
2 changed files with 14 additions and 0 deletions
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7
doc/guides/nics/octeontx2.rst
View File

@ -268,6 +268,13 @@ Patterns:
+----+--------------------------------+
| 22 | RTE_FLOW_ITEM_TYPE_ANY |
+----+--------------------------------+
| 23 | RTE_FLOW_ITEM_TYPE_GRE_KEY |
+----+--------------------------------+
.. note::
``RTE_FLOW_ITEM_TYPE_GRE_KEY`` works only when checksum and routing
bits in the GRE header are equal to 0.
Actions:

7
drivers/net/octeontx2/otx2_flow_parse.c
View File

@ -389,6 +389,7 @@ int
otx2_flow_parse_ld(struct otx2_parse_state *pst)
{
char hw_mask[NPC_MAX_EXTRACT_DATA_LEN];
uint32_t gre_key_mask = 0xffffffff;
struct otx2_flow_item_info info;
int lid, lt, lflags;
int rc;
@ -450,6 +451,12 @@ otx2_flow_parse_ld(struct otx2_parse_state *pst)
info.def_mask = &rte_flow_item_gre_mask;
info.len = sizeof(struct rte_flow_item_gre);
break;
case RTE_FLOW_ITEM_TYPE_GRE_KEY:
lt = NPC_LT_LD_GRE;
info.def_mask = &gre_key_mask;
info.len = sizeof(gre_key_mask);
info.hw_hdr_len = 4;
break;
case RTE_FLOW_ITEM_TYPE_NVGRE:
lt = NPC_LT_LD_GRE;
lflags = NPC_F_GRE_NVGRE;