From: <nshettyj@marvell.com>
To: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: Satheesh Paul A <psatheesh@marvell.com>,
Nitin Shetty J <nshettyj@marvell.com>,
Sunil Goutham <sgoutham@marvell.com>,
"Ratheesh Kannoth" <rkannoth@marvell.com>,
Geetha sowjanya <gakula@marvell.com>,
Subbaraya Sundeep <sbhatta@marvell.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Subject: [PATCH net-next] octeontx2-af: add support for custom L2 header
Date: Wed, 15 Jul 2026 12:50:34 +0530 [thread overview]
Message-ID: <20260715072035.617544-1-nshettyj@marvell.com> (raw)
From: Satheesh Paul A <psatheesh@marvell.com>
Add packet parsing support for custom L2 headers. Also add support
to include a field from the custom header for flow tag generation.
Introduce a new flow key type NIX_FLOW_KEY_TYPE_CH_LEN_90B which
maps to the NPC_LT_LA_CUSTOM_L2_90B_ETHER layer type. This extracts
a 2-byte field at a 24-byte offset in layer A to be used in flow
tag generation.
Signed-off-by: Satheesh Paul A <psatheesh@marvell.com>
Signed-off-by: Nitin Shetty J <nshettyj@marvell.com>
---
drivers/net/ethernet/marvell/octeontx2/af/mbox.h | 1 +
drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 7 +++++++
2 files changed, 8 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 253dfee9646e..10552e9cf519 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -1263,6 +1263,7 @@ struct nix_rss_flowkey_cfg {
#define NIX_FLOW_KEY_TYPE_INNR_UDP BIT(15)
#define NIX_FLOW_KEY_TYPE_INNR_SCTP BIT(16)
#define NIX_FLOW_KEY_TYPE_INNR_ETH_DMAC BIT(17)
+#define NIX_FLOW_KEY_TYPE_CH_LEN_90B BIT(18)
#define NIX_FLOW_KEY_TYPE_CUSTOM0 BIT(19)
#define NIX_FLOW_KEY_TYPE_VLAN BIT(20)
#define NIX_FLOW_KEY_TYPE_IPV4_PROTO BIT(21)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index c5bddd2ad920..dade7bb6deb7 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -4288,6 +4288,13 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg)
field->ltype_match = NPC_LT_LC_CUSTOM0;
field->ltype_mask = 0xF;
break;
+ case NIX_FLOW_KEY_TYPE_CH_LEN_90B:
+ field->lid = NPC_LID_LA;
+ field->hdr_offset = 24;
+ field->bytesm1 = 1; /* 2 Bytes*/
+ field->ltype_match = NPC_LT_LA_CUSTOM_L2_90B_ETHER;
+ field->ltype_mask = 0xF;
+ break;
case NIX_FLOW_KEY_TYPE_VLAN:
field->lid = NPC_LID_LB;
field->hdr_offset = 2; /* Skip TPID (2-bytes) */
--
2.48.1
reply other threads:[~2026-07-15 7:21 UTC|newest]
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