On 25-Oct-23 12:30 AM, Zhang, Qi Z wrote:

-----Original Message-----
From: Nicolau, Radu <[email protected]>
Sent: Tuesday, October 24, 2023 10:49 PM
To: Zhang, Qi Z <[email protected]>; Marchand, David
<[email protected]>
Cc: Wu, Jingjing <[email protected]>; Xing, Beilei <[email protected]>;
[email protected]; [email protected]
Subject: Re: [PATCH] net/iavf: fix IAVF_TX_OFFLOAD_MASK definition


On 24-Oct-23 12:24 PM, Zhang, Qi Z wrote:
-----Original Message-----
From: Radu Nicolau <[email protected]>
Sent: Tuesday, October 24, 2023 6:23 PM
To: Marchand, David <[email protected]>
Cc: Wu, Jingjing <[email protected]>; Xing, Beilei
<[email protected]>; [email protected]; [email protected]
Subject: Re: [PATCH] net/iavf: fix IAVF_TX_OFFLOAD_MASK definition


On 24-Oct-23 10:49 AM, David Marchand wrote:
On Tue, Oct 24, 2023 at 11:13 AM Radu Nicolau
<[email protected]>
wrote:
IAVF_TX_OFFLOAD_MASK definition contained
RTE_ETH_TX_OFFLOAD_SECURITY
instead of RTE_MBUF_F_TX_SEC_OFFLOAD.

Fixes: 6bc987ecb860 ("net/iavf: support IPsec inline crypto")
Cc: [email protected]

Signed-off-by: Radu Nicolau <[email protected]>
Something is not clear to me.
How was the IPsec inline crypto feature supposed to work with this
driver so far?

Any packet with the RTE_MBUF_F_TX_SEC_OFFLOAD flag should have
been
refused in iavf_prep_pkts.

It worked because the IPsec sample app doesn't call
rte_eth_tx_prepare, and from what I can see no other sample app does.
To keep consistent, its better to refine the
IAVF_TX_OFFLOAD_NOTSUP_MASK definition.

You mean like this?


#define IAVF_TX_OFFLOAD_NOTSUP_MASK ( \
          RTE_MBUF_F_TX_OFFLOAD_MASK ^ (  \
              RTE_MBUF_F_TX_OUTER_IPV6 |         \
              RTE_MBUF_F_TX_OUTER_IPV4 |         \
              RTE_MBUF_F_TX_IPV6 |             \
              RTE_MBUF_F_TX_IPV4 |             \
              RTE_MBUF_F_TX_VLAN |         \
              RTE_MBUF_F_TX_IP_CKSUM |         \
              RTE_MBUF_F_TX_L4_MASK |         \
              RTE_MBUF_F_TX_TCP_SEG |         \
              RTE_MBUF_F_TX_UDP_SEG |      \
              RTE_MBUF_F_TX_TUNNEL_MASK |    \
              RTE_MBUF_F_TX_OUTER_IP_CKSUM |  \
              RTE_MBUF_F_TX_OUTER_UDP_CKSUM | \
              RTE_MBUF_F_TX_SEC_OFFLOAD))
Sorry, I miss understanding this code change, actually you didn't remove a 
flag, but just replace it,  NOTSUP_MASK no need to be changed

Then I don't understand why "Any packet with the RTE_MBUF_F_TX_SEC_OFFLOAD flag 
should have refused in iavf_prep_pkts"
But I assume tx_pkt_prepare should reject only invalid packets while still 
functioning correctly with inline IPsec.

rte_eth_tx_prepare would have rejected the packets before this fix, but no app calls rte_eth_tx_prepare. The only app that calls it is testpmd.


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