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

DPDK git repo: dpdk-next-net-intel
commit 00f8d452607bbddbd47a2d4c7abde1038dec9b1e
Author: Morten Brørup <mb@smartsharesystems.com>
Date:   Fri Dec 12 11:11:36 2025 +0000

    net/intel: cache mbuf fast release mempool
    
    When fast release of mbufs is enabled, the mempool to free the mbufs to
    was determined by looking at the pool pointer of the first mbuf in the
    burst being freed, potentially costing a cache miss.
    
    This patch adds a mbuf fast release mempool pointer to the common transmit
    queue structure, so reading the mbufs during fast release is avoided.
    The pointer in located a cache line already being accessed,
    and is only set once, when the first mbuf ever is released.
    
    The fast release mempool pointer also indicates if fast release is
    enabled, so this pointer is checked instead of the
    RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE flag in the offloads field in the
    transmit queue structure.
    
    The same optimizations were applied to mbuf recycle.
    
    For the ice driver, prefetcing the mbufs when fast release of mbufs is
    enabled became superflouous, and has been moved into the branch for normal
    mbuf release.
    
    For the i40e driver, prefetcing the mbufs when fast release of mbufs is
    enabled was already superflouous, and has been moved into the branch for
    normal mbuf release.
    
    Signed-off-by: Morten Brørup <mb@smartsharesystems.com>

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


OS : Ubuntu 24.04.3 LTS       
Kernel : 6.8.0-71-generic         
GCC : 13.3.0-6ubuntu2~24.04        
NIC : Ethernet Controller XL710 for 40GbE QSFP+         
Target : x86_64-native-linuxapp-gcc      

	Test result details:
	+-----------------+---------------------------------------------------+-------+
	| suite           | case                                              | status|
	+-----------------+---------------------------------------------------+-------+
	| checksum_offload| test_checksum_offload_with_vlan                   | passed|
	| 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|
	| 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   |
	+-----------------+---------------------------------------------------+-------+


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