netdev - Re: [PATCH iwl v2] i40e: print correct hw max rss count in kernel ring buffer

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Date: Mon, 22 Jan 2024 20:51:37 +0000
From: Simon Horman <horms@...nel.org>
To: Suresh Kumar <suresh2514@...il.com>
Cc: jesse.brandeburg@...el.com, anthony.l.nguyen@...el.com,
	davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
	pabeni@...hat.com, intel-wired-lan@...ts.osuosl.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH iwl v2] i40e: print correct hw max rss count in kernel
 ring buffer

On Sat, Jan 20, 2024 at 12:58:06PM +0530, Suresh Kumar wrote:
> pf->rss_size_max is hardcoded and always prints max rss count as 64.
> 
> Eg:
>   kernel: i40e 0000:af:00.1: User requested queue count/HW max RSS count:  104/64
> 
> whereas  ethtool reports the correct value from "vsi->num_queue_pairs"
> 
> Channel parameters for eno33:
> Pre-set maximums:
> RX:     n/a
> TX:     n/a
> Other:      1
> Combined:   104
> Current hardware settings:
> RX:     n/a
> TX:     n/a
> Other:      1
> Combined:   104  <-------
> 
> and is misleading.
> 
> Change it to vsi->num_queue_pairs
> 
> Signed-off-by: Suresh Kumar <suresh2514@...il.com>

Hi Suresh,

following-up on our earlier emails.

I do think that if this it is a fix it should have a fixes tag.
Which should be for the commit where the bug was first visible to users.