[PATCH 1/3] app/testpmd: add/remove multiple VLAN filter IDs at once

[Stephen Hemminger]

On Fri, 11 Apr 2025 16:10:03 +0800
Chaoyong He <chaoyong.he at corigine.com> wrote:

> From: Long Wu <long.wu at corigine.com>
> 
> The command of setting VLAN filter IDs can only set one VLAN filter
> ID at once. For example:
> testpmd> rx_vlan add 100 0  
> 
> This is very inefficient in some case because it forces the
> user type this command as many times as the VLAN filter IDs
> they want to set.
> 
> This patch supports the user set any number valid VLAN filter
> IDs just through one command and it is also backwards compatible.
> For example:
> testpmd> rx_vlan add 100,102-103,200 0  
> The VLAN filter IDs 100, 102, 103, 200 will be added to port 0.
> 
> Signed-off-by: Long Wu <long.wu at corigine.com>
> Reviewed-by: Chaoyong He <chaoyong.he at corigine.com>

Not sure if this is really worth the effort.
Testpmd is intended to exercise drivers, not as a production forwarding application
though users have tendency to be lazy and use it for that.

If consensus is to implement this, then DPDK should really have a way to parse
a range of values (already needed for cores). Then the library code could be used
here, rather than special parsing code only for VLAN's in testpmd.