Subject: Re: [PATCH net-next] net: mana: Expose page_pool stats via ethtool

From: Jakub Kicinski <[email-masked]>
Date: Fri, 27 Feb 2026 09:27:22 -0800

On Fri, 27 Feb 2026 01:39:18 -0800 Dipayaan Roy wrote:
> MANA relies on page_pool for RX buffers, and the buffer refill paths
> can behave quite differently across architectures and configurations (e.g.
> base page size, fragment vs full-page usage). This makes it harder to
> understand and compare RX buffer behavior when investigating performance
> and memory differences across platforms.

Standard stats must not be duplicated in ethtool -S.
ynl and ynltool provide easy access to these stats

# ynltool page-pool stats 
    eth0[2]	page pools: 44 (zombies: 0)
		refs: 495680 bytes: 2030305280 (refs: 0 bytes: 0)
		recycling: 100.0% (alloc: 7745:2097593009 recycle: 379301630:1717888312)