[PATCH] net/i40e: fix simple Tx prepare rejecting tunnel type flags

[PATCH] net/i40e: fix simple Tx prepare rejecting tunnel type flags

[Ciara Loftus]

The tunnel type bits in ol_flags (RTE_MBUF_F_TX_TUNNEL_*) identify
the encapsulation protocol used by a packet. An application may set
these to indicate tunnel type without requesting any tunnel offload.
The simple Tx path was incorrectly treating these flags as unsupported
offload requests and rejecting the packet.

Add RTE_MBUF_F_TX_TUNNEL_MASK to the set of permitted flags in the
simple Tx supported offloads mask to permit tunnel flags in the mbuf.

Bugzilla ID: 1342
Fixes: 146ffa81d05e ("net/i40e: add Tx preparation for simple Tx datapath")
Cc: stable@dpdk.org

Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
---
 drivers/net/intel/i40e/i40e_rxtx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/intel/i40e/i40e_rxtx.c b/drivers/net/intel/i40e/i40e_rxtx.c
index c5ac75e0f0..a2b351e932 100644
--- a/drivers/net/intel/i40e/i40e_rxtx.c
+++ b/drivers/net/intel/i40e/i40e_rxtx.c
@@ -74,7 +74,8 @@
 #define I40E_TX_OFFLOAD_SIMPLE_SUP_MASK (RTE_MBUF_F_TX_IPV4 | \
 		RTE_MBUF_F_TX_IPV6 | \
 		RTE_MBUF_F_TX_OUTER_IPV4 | \
-		RTE_MBUF_F_TX_OUTER_IPV6)
+		RTE_MBUF_F_TX_OUTER_IPV6 | \
+		RTE_MBUF_F_TX_TUNNEL_MASK)
 
 #define I40E_TX_OFFLOAD_SIMPLE_NOTSUP_MASK \
 		(RTE_MBUF_F_TX_OFFLOAD_MASK ^ I40E_TX_OFFLOAD_SIMPLE_SUP_MASK)
-- 
2.43.0

Re: [PATCH] net/i40e: fix simple Tx prepare rejecting tunnel type flags

[Bruce Richardson]

On Fri, Mar 20, 2026 at 11:14:59AM +0000, Ciara Loftus wrote:
> The tunnel type bits in ol_flags (RTE_MBUF_F_TX_TUNNEL_*) identify
> the encapsulation protocol used by a packet. An application may set
> these to indicate tunnel type without requesting any tunnel offload.
> The simple Tx path was incorrectly treating these flags as unsupported
> offload requests and rejecting the packet.
> 
> Add RTE_MBUF_F_TX_TUNNEL_MASK to the set of permitted flags in the
> simple Tx supported offloads mask to permit tunnel flags in the mbuf.
> 
> Bugzilla ID: 1342
> Fixes: 146ffa81d05e ("net/i40e: add Tx preparation for simple Tx datapath")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
> ---
>  drivers/net/intel/i40e/i40e_rxtx.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Applied to dpdk-next-net-intel.

Thanks,
/Bruce