|SUCCESS|dpdk|14cbc58b6f| intel-Functional

[sys_stv at intel.com]

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

DPDK git repo: dpdk
commit 14cbc58b6fca8e725043910f6f9af3b748d3374d
Author: Junlong Wang <wang.junlong1 at zte.com.cn>
Date:   Thu Sep 3 19:32:19 2026 +0800

    net/zxdh: optimize Tx performance
    
    1. Rework the Tx completion flush to walk descriptors one at a time and
       free each completed segment with rte_pktmbuf_free_seg(), add prefetch
       hints on the next descriptor cache line, switch the ring-held mbufs
       in zxdh_dev_free_mbufs() to rte_pktmbuf_free_seg().
    
    2. The flush drives the inner do/while off the device-returned
       `desc[used_idx].id` (last segment's index for a chain): iterates
       once on the push path, walks every segment of a chain on the
       append path and frees each segment's cookie via
       `vq->vq_descx[used_idx].cookie`. The flush also rewrites
       `desc[used_idx].id = used_idx`; this is redundant given that the
       enqueue paths already set the id, but is kept for commercial
       alignment.
    
    3. Guard the walk with a `budget` counter initialised to `vq_nentries`,
       break on `id >= size`, and mask the prefetch index with `(size - 1)`
       so the walk and `free_cnt` stay bounded even if the device writes
       an out-of-range or stale id.
    
    4. Document the Tx xmit changes in the 26.11 release notes.
    
    Signed-off-by: Junlong Wang <wang.junlong1 at zte.com.cn>

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