netdev - Re: [PATCH net-next 0/5] nfp: control processor DMA support and RJ45

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Message-Id: <20190301.120048.1623143200791712278.davem@davemloft.net>
Date:   Fri, 01 Mar 2019 12:00:48 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     jakub.kicinski@...ronome.com
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com
Subject: Re: [PATCH net-next 0/5] nfp: control processor DMA support and
 RJ45

From: Jakub Kicinski <jakub.kicinski@...ronome.com>
Date: Tue, 26 Feb 2019 20:19:28 -0800

> This series starts with adding support for reporting twisted pair
> media type in ethtool.
> 
> Remaining patches add support for using DMA with the control/service
> processor.  Currently we always copy the command data into card's
> memory.  DMA support allows us to have the NSP read the data from
> host memory by itself.  Unfortunately, the FW loading and flashing
> cannot directly map the buffers for DMA because (a) the firmware
> ABI returns const buffers, and (b) the buffers may be vmalloc()ed
> in many mysterious/unmappable way.  So just bite the bullet -
> allocate new host buffer for the command and copy.
> 
> As Dirk explains, the NSP now supports updating all FWs at once
> which means the max flashing time grew significantly.  He bumps
> the max wait to avoid timeouts.

Series applied, thanks Jakub.