|SUCCESS|dpdk-next-net-intel|6876d632bb| intel-Functional

[sys_stv at intel.com]

Test-Label: intel-Functional
Test-Status: SUCCESS
_Functional PASS_

DPDK git repo: dpdk-next-net-intel
commit 6876d632bb4d930024dd66b3dc9c87810eaed755
Author: Ciara Loftus <ciara.loftus at intel.com>
Date:   Fri Jun 12 14:35:31 2026 +0000

    net/iavf: fix scalar Rx path zero-length segment
    
    When hardware CRC stripping is active, a frame whose on-wire size is an
    exact multiple of the Rx buffer size can cause the NIC to fill the final
    data descriptor and place the four CRC bytes into a separate trailing
    descriptor. After hardware stripping, that descriptor carries zero bytes
    of payload.
    
    The existing CRC cleanup code only handles a zero-length trailing segment
    when software CRC stripping is enabled. When hardware stripping is
    active, the zero-length mbuf is silently chained to the reassembled
    packet. Forwarding such a packet causes a zero-length Tx descriptor,
    triggering a Malicious Driver Detection event on the PF and resetting
    the VF.
    
    Fix by adding logic to detect a zero-length final segment when hardware
    CRC stripping is active, and freeing it.
    
    Fixes: a2b29a7733ef ("net/avf: enable basic Rx Tx")
    Fixes: b8b4c54ef9b0 ("net/iavf: support flexible Rx descriptor in normal path")
    Cc: stable at dpdk.org
    
    Signed-off-by: Declan Doherty <declan.doherty at intel.com>
    Signed-off-by: Ciara Loftus <ciara.loftus at intel.com>
    Acked-by: Bruce Richardson <bruce.richardson at intel.com>

Smoke-Testing Summary : 31 Case Done, 31 Successful, 0 Failures      


OS : Ubuntu 24.04.4 LTS       
Kernel : 6.8.0-71-generic         
GCC : 13.3.0-6ubuntu2~24.04.1        
NIC : Ethernet Controller XL710 for 40GbE QSFP+         
Target : x86_64-native-linuxapp-gcc      

	Test result details:
	+-----------------+---------------------------------------------------+-------+
	| suite           | case                                              | status|
	+-----------------+---------------------------------------------------+-------+
	| checksum_offload| test_do_not_insert_checksum_on_the_transmit_packet| passed|
	| checksum_offload| test_hardware_checksum_check_ip_rx                | passed|
	| checksum_offload| test_hardware_checksum_check_ip_tx                | passed|
	| checksum_offload| test_hardware_checksum_check_l4_rx                | passed|
	| checksum_offload| test_hardware_checksum_check_l4_tx                | passed|
	| checksum_offload| test_insert_checksum_on_the_transmit_packet       | passed|
	| checksum_offload| test_rx_checksum_valid_flags                      | passed|
	| checksum_offload| test_checksum_offload_with_vlan                   | n/a   |
	| dual_vlan       | test_dual_vlan_priority_rxtx                      | passed|
	| dual_vlan       | test_vlan_filter_config                           | passed|
	| dual_vlan       | test_vlan_filter_table                            | passed|
	| dual_vlan       | test_vlan_insert_config                           | passed|
	| dual_vlan       | test_vlan_random_test                             | passed|
	| dual_vlan       | test_vlan_strip_config                            | passed|
	| dual_vlan       | test_vlan_synthetic_test                          | passed|
	| dual_vlan       | test_vlan_tpid_config                             | passed|
	| dual_vlan       | test_vlan_stripq_config                           | n/a   |
	| jumboframes     | test_jumboframes_bigger_jumbo                     | passed|
	| jumboframes     | test_jumboframes_jumbo_jumbo                      | passed|
	| jumboframes     | test_jumboframes_jumbo_nojumbo                    | passed|
	| jumboframes     | test_jumboframes_normal_jumbo                     | passed|
	| jumboframes     | test_jumboframes_normal_nojumbo                   | passed|
	| rxtx_offload    | test_rxoffload_port_all                           | passed|
	| rxtx_offload    | test_rxoffload_port_cmdline                       | passed|
	| rxtx_offload    | test_txoffload_port                               | passed|
	| rxtx_offload    | test_txoffload_port_all                           | passed|
	| rxtx_offload    | test_txoffload_port_checksum                      | passed|
	| rxtx_offload    | test_txoffload_port_cmdline                       | passed|
	| rxtx_offload    | test_txoffload_port_multi_segs                    | passed|
	| rxtx_offload    | test_txoffload_queue                              | passed|
	| rxtx_offload    | test_rxoffload_queue                              | n/a   |
	+-----------------+---------------------------------------------------+-------+


DPDK STV team