[dpdk-dev] [PATCH] net/octeontx2: add support for VLAN based RSS hash

[kirankumark at marvell.com]

From: Kiran Kumar K <kirankumark at marvell.com>

Adding support for VLAN based RSS hash. 2 bytes of SPI will
be considered for hashing.

Signed-off-by: Kiran Kumar K <kirankumark at marvell.com>
---
 drivers/common/octeontx2/otx2_mbox.h | 2 ++
 drivers/net/octeontx2/otx2_ethdev.h  | 2 +-
 drivers/net/octeontx2/otx2_rss.c     | 3 +++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/common/octeontx2/otx2_mbox.h b/drivers/common/octeontx2/otx2_mbox.h
index 34b1d0663..831445703 100644
--- a/drivers/common/octeontx2/otx2_mbox.h
+++ b/drivers/common/octeontx2/otx2_mbox.h
@@ -966,6 +966,8 @@ struct nix_rss_flowkey_cfg {
 #define FLOW_KEY_TYPE_INNR_SCTP     BIT(16)
 #define FLOW_KEY_TYPE_INNR_ETH_DMAC BIT(17)
 #define FLOW_KEY_TYPE_CH_LEN_90B	BIT(18)
+#define FLOW_KEY_TYPE_CUSTOM0		BIT(19)
+#define FLOW_KEY_TYPE_VLAN		BIT(20)
 #define FLOW_KEY_TYPE_L4_DST BIT(28)
 #define FLOW_KEY_TYPE_L4_SRC BIT(29)
 #define FLOW_KEY_TYPE_L3_DST BIT(30)
diff --git a/drivers/net/octeontx2/otx2_ethdev.h b/drivers/net/octeontx2/otx2_ethdev.h
index e9efe52bb..c4cb09621 100644
--- a/drivers/net/octeontx2/otx2_ethdev.h
+++ b/drivers/net/octeontx2/otx2_ethdev.h
@@ -119,7 +119,7 @@
 #define NIX_RSS_OFFLOAD		(ETH_RSS_PORT | ETH_RSS_IP | ETH_RSS_UDP |\
 				 ETH_RSS_TCP | ETH_RSS_SCTP | \
 				 ETH_RSS_TUNNEL | ETH_RSS_L2_PAYLOAD | \
-				 NIX_RSS_L3_L4_SRC_DST)
+				 NIX_RSS_L3_L4_SRC_DST | ETH_RSS_C_VLAN)
 
 #define NIX_TX_OFFLOAD_CAPA ( \
 	DEV_TX_OFFLOAD_MBUF_FAST_FREE	| \
diff --git a/drivers/net/octeontx2/otx2_rss.c b/drivers/net/octeontx2/otx2_rss.c
index d859937e6..364dc623c 100644
--- a/drivers/net/octeontx2/otx2_rss.c
+++ b/drivers/net/octeontx2/otx2_rss.c
@@ -238,6 +238,9 @@ otx2_rss_ethdev_to_nix(struct otx2_eth_dev *dev, uint64_t ethdev_rss,
 		flowkey_cfg |= FLOW_KEY_TYPE_CH_LEN_90B;
 	}
 
+	if (ethdev_rss & ETH_RSS_C_VLAN)
+		flowkey_cfg |= FLOW_KEY_TYPE_VLAN;
+
 	if (ethdev_rss & ETH_RSS_L3_SRC_ONLY)
 		flowkey_cfg |= FLOW_KEY_TYPE_L3_SRC;
 
-- 
2.25.1