> -----Original Message-----
> From: Dariusz Sosnowski
> Sent: Friday, February 9, 2024 12:04
> To: Gregory Etelson <getel...@nvidia.com>; dev@dpdk.org
> Cc: Gregory Etelson <getel...@nvidia.com>; Maayan Kashani
> <mkash...@nvidia.com>; Ori Kam <or...@nvidia.com>; Aman Singh
> <aman.deep.si...@intel.com>; Yuying Zhang <yuying.zh...@intel.com>
> Subject: RE: [PATCH] app/testpmd: add size parameter to raw_encap action
>
> Hi Gregory,
>
> > -----Original Message-----
> > From: Gregory Etelson <getel...@nvidia.com>
> > Sent: Thursday, October 26, 2023 09:31
> > To: dev@dpdk.org
> > Cc: Gregory Etelson <getel...@nvidia.com>; Maayan Kashani
> > <mkash...@nvidia.com>; Ori Kam <or...@nvidia.com>; Aman Singh
> > <aman.deep.si...@intel.com>; Yuying Zhang <yuying.zh...@intel.com>
> > Subject: [PATCH] app/testpmd: add size parameter to raw_encap action
> >
> > Testpmd always provides RAW_ENCAP flow action configuration with encap
> > buffer and the buffer size.
> > That implementation does not allow to create non-masked raw_encap
> > action in the template API actions template.
> >
> > The patch adds the `size` parameter to testpmd `raw_encap` action
> > configuration.
> > Testpmd can create non-masked raw-encap action template and specify
> > encap buffer during flow creation.
> >
> > Example:
> >
> > # total data size is 50
> > testpmd> set raw_encap 0 \
> > eth src is 11:22:33:44:55:66 dst is aa:bb:cc:dd:01:aa / \
> > ipv4 src is 31.31.31.31 dst is 63.63.63.1 / udp src is 1 / \
> > vxlan vni is 1 / end_set
> >
> > testpmd> flow actions_template 0 create ingress \
> > actions_template_id 50 \
> > template raw_encap size 50 / jump / end \
> > mask raw_encap size 50 / jump / end \
> >
> > tstpmd> flow queue 0 create 0 template_table 0 \
> > pattern_template 0 actions_template 0 postpone no \
> > pattern ... end \
> > actions raw_encap index 0 / jump group 1 / end
> >
> > The new `size` parameter is mutually exclusive with the existing
> > `index` parameter.
> >
> > Signed-off-by: Gregory Etelson <getel...@nvidia.com>
>
> The following sequence of commands results in "Bad arguments" error, but I
> think it should be accepted.
>
> testpmd> port stop all
> Stopping ports...
> Checking link statuses...
> Done
> testpmd> flow configure 0 queues_number 4 queues_size 64
> Configure flows on port 0: number of queues 4 with 64 elements
> testpmd> port start all
> Port 0: B8:CE:F6:7B:D8:E0
> Checking link statuses...
> Done
> testpmd> set raw_encap 0 eth src is 11:22:33:44:55:66 dst is
> testpmd> aa:bb:cc:dd:01:aa / ipv4 src is 31.31.31.31 dst is 63.63.63.1 /
> testpmd> udp src is 1 / vxlan vni is 1 / end_set flow actions_template 0
> testpmd> create ingress actions_template_id 100 template raw_encap index
> testpmd> 0 / jump / end mask raw_encap index 0 / jump / end
> Bad arguments
I bisected the tree, and it appears that this issue is not caused by this
commit, but it's an existing problem in testpmd.
The root cause of "Bad arguments" is the fact that when parsing function for
raw_encap index is called,
parse_int() is called with size == 0, but raw_encap index size is
sizeof(size_t).
This causes a failure in validation introduced in commit 913b919906da
("app/testpmd: add size validation to token parsers").
The same issue appears for other cases where parse_int() is called with size ==
0 e.g., parsing RSS queues in RSS flow action.
I'll provide a patch for testpmd which addresses that.
Best regards,
Dariusz Sosnowski
