[PATCH] net/gve: add reset path

[Stephen Hemminger]

On Tue, 30 Dec 2025 02:29:58 +0000
"Jasper Tran O'Leary" <jtranoleary at google.com> wrote:

> Currently, the driver does not include any reset functionality and hence
> cannot be reset by the application. This patch introduces a driver
> callback for the `rte_eth_dev_reset` function which will reset the
> device.
> 
> Also, as a precaution, null out device pointers to rx and tx queue
> arrays when we release the queues during a reset.
> 
> Signed-off-by: Jasper Tran O'Leary <jtranoleary at google.com>
> Reviewed-by: Joshua Washington <joshwash at google.com>
> ---

AI code review spotted some minor things, please provide an updated version.

Patch 2: net/gve: add reset path
Verdict: ⚠️ Needs minor fixes
Commit Message:

✅ Subject line: 23 characters (within 60 limit)
✅ Correct prefix net/gve:
✅ Imperative mood, lowercase, no trailing period
✅ Signed-off-by and Reviewed-by present

Warnings:

Unnecessary initialization (line 45): int err = 0; — err is always assigned before use in gve_init_priv(). Should be just int err;
Missing release notes: Adding dev_reset callback is a new feature. Per guidelines, new features/API additions should update doc/guides/rel_notes/ for the current release.
Missing documentation: The PMD documentation in doc/guides/nics/gve.rst should be updated to reflect that reset is now supported, and doc/guides/nics/features/gve.ini should list the feature if applicable.

Code:

✅ Good defensive check for secondary process
✅ Good check that device is stopped before reset
✅ Error handling is appropriate
✅ NULL-ing queue pointers after release is good practice