netdev - Re: [PATCH net] enic: add wq clean up budget

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Message-Id: <20171220.135034.1783184839821083677.davem@davemloft.net>
Date:   Wed, 20 Dec 2017 13:50:34 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     gvaradar@...co.com
Cc:     netdev@...r.kernel.org, govindarajulu90@...il.com, benve@...co.com
Subject: Re: [PATCH net] enic: add wq clean up budget

From: Govindarajulu Varadarajan <gvaradar@...co.com>
Date: Tue, 19 Dec 2017 16:37:14 -0800

> How would you want us to fix this issue? Is doing an ioread on
> fetch_index for every poll our only option? (to get head and tail
> point once)
> 
> If 256 is not reasonable, will wq_budget equal to wq ring size be
> acceptable?
> At any point number of wq entries to be cleaned cannot be more than
> ring size.

You can resubmit your orignal patch to increase things to 256 but
realize that I still consider this driver terrible at layering,
indirection, and how it does reclaim.