[PATCH v4] app/testpmd: fix DCB queue allocation for VMDq devices

[Stephen Hemminger]

On Thu,  9 Apr 2026 06:43:46 +0000
KAVYA AV <kavyax.a.v at intel.com> wrote:

> When using DCB mode with VT disabled and requesting more queues than
> traffic classes (e.g., rxq=64 with 8 TCs), testpmd crashes with null
> pointer errors because it artificially limits queue allocation to
> num_tcs.
> 
> For VMDq devices, use actual VMDq queue layout (vmdq_queue_num) instead
> of limiting to num_tcs. This allows VMDq devices to utilize their full
> queue capacity while maintaining compatibility with non-VMDq devices.
> 
> Fixes: 2169699b15fc ("app/testpmd: add queue restriction in DCB command")
> Cc: stable at dpdk.org
> 
> Signed-off-by: KAVYA AV <kavyax.a.v at intel.com>
> ---

Applied to next-net