Hi all, I have realized that the PKT_TX_VLAN_PKT flag for Tx Vlan Offload doesn't work in my application.
According to the NICs I have (IGB) there seems to be a problem with this vlan offload tx feature and this version of DPDK according to the Bug 17 : https://bugs.dpdk.org/show_bug.cgi?id=17 I have tested it using vfio_pci and igb_uio drivers as well as SW vlan insertion (rte_vlan_insert) and the result is exactly the same. Have this bug been solved so far? These are my NICs: 04:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01) Subsystem: Super Micro Computer Inc Device 10c9 Flags: fast devsel, IRQ 17 Memory at fafe0000 (32-bit, non-prefetchable) [disabled] [size=128K] Memory at fafc0000 (32-bit, non-prefetchable) [disabled] [size=128K] I/O ports at ec00 [disabled] [size=32] Memory at fafbc000 (32-bit, non-prefetchable) [disabled] [size=16K] [virtual] Expansion ROM at faf80000 [disabled] [size=128K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+ Capabilities: [70] MSI-X: Enable- Count=10 Masked- Capabilities: [a0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Device Serial Number 00-30-48-ff-ff-bb-17-02 Capabilities: [150] Alternative Routing-ID Interpretation (ARI) Capabilities: [160] Single Root I/O Virtualization (SR-IOV) Kernel driver in use: vfio-pci Kernel modules: igb 04:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01) Subsystem: Super Micro Computer Inc Device 10c9 Flags: fast devsel, IRQ 16 Memory at faf60000 (32-bit, non-prefetchable) [disabled] [size=128K] Memory at faf40000 (32-bit, non-prefetchable) [disabled] [size=128K] I/O ports at e880 [disabled] [size=32] Memory at faf3c000 (32-bit, non-prefetchable) [disabled] [size=16K] [virtual] Expansion ROM at faf00000 [disabled] [size=128K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+ Capabilities: [70] MSI-X: Enable- Count=10 Masked- Capabilities: [a0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Device Serial Number 00-30-48-ff-ff-bb-17-02 Capabilities: [150] Alternative Routing-ID Interpretation (ARI) Capabilities: [160] Single Root I/O Virtualization (SR-IOV) Kernel driver in use: vfio-pci Kernel modules: igb Thanks for your attention Regards, PD: BTW, I have observed that capturing a, for example, an ARP message in an rx queue which the VLAN stripped the answer is sent correctly if I set the PKT_TX_VLAN_PKT flag and the VLAN_TCI is the same... However, if I try to set the VLAN header from a non-VLAN stripped frame then it doesnt work. -- Victor
