[PATCH v8 19/20] drivers: add testpmd commands for private features

[Stephen Hemminger]

On Wed,  3 Jun 2026 14:29:44 +0800
liujie5 at linkdatatechnology.com wrote:

> From: Jie Liu <liujie5 at linkdatatechnology.com>
> 
> Introduce private testpmd commands and implementation files to enable
> debugging and testing of sxe2-specific hardware features (such as
> packet scheduling reset, UDP tunnel configuration, and IPsec ingress/
> egress offloads) directly within the testpmd application.
> 
> The parameters are parsed using the standard 'rte_kvargs' library during
> the PCI/vdev probing phase. Documentation for these parameters is also
> updated.
> 
> During memory hotplug events, the SXE2 driver needs to track memory
> segment layout changes to maintain internal DMA mappings. However,
> existing memseg walk functions (rte_memseg_walk) acquire memory locks
> and cannot be called from within memory event callbacks, leading to
> potential deadlocks.
> 
> This commit introduces sxe2_memseg_walk_cb() as a helper that walks
> memory segments using the thread-unsafe variant
> rte_memseg_walk_thread_unsafe(), which is safe to call from
> memory-related callbacks [citation:1][citation:3][citation:5].
> 
> The implementation follows the standard rte_memseg_walk_t prototype,
> processing each memseg to update driver-specific data structures.
> 
> Signed-off-by: Jie Liu <liujie5 at linkdatatechnology.com>
> ---

WARNING: [TYPO_SPELLING] 'thw' may be misspelled - perhaps 'the'?
#  drivers/net/sxe2/sxe2_testpmd_lib.c:90:
+  			cmdline_printf(cl, "\thw flow id: %d\n", hw_flow->flow_id);

total: 0 errors, 1 warnings, 0 checks, 2371 lines checked

18/20 valid patches