netdev - Re: [PATCH net-next v4 0/3] sfc: add MCDI tracing

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Date:	Wed, 27 May 2015 13:55:23 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	ecree@...arflare.com
Cc:	netdev@...r.kernel.org, linux-net-drivers@...arflare.com
Subject: Re: [PATCH net-next v4 0/3] sfc: add MCDI tracing

From: Edward Cree <ecree@...arflare.com>
Date: Wed, 27 May 2015 13:12:31 +0100

> This patchset adds support for logging MCDI (Management-Controller-to-
>  Driver Interface) interactions between the sfc driver and a bound device,
>  to aid in debugging.
> Solarflare has a tool to decode the resulting traces and will look to
>  open-source this if there is any external interest, but the protocol is
>  already detailed in drivers/net/ethernet/sfc/mcdi_pcol.h.
> The logging buffer we allocate per MCDI context is a work area for
>  constructing each individual message before logging it with netif_info.
> The reason the buffer is long-lived is simply to avoid the overhead of
>  allocating and freeing it every MCDI call, since MCDIs are already known
>  to be serialised for other reasons.
> 
> --
> v4: remove patch #4, which has already been applied via sshah
> v3: add some explanations to cover letter and patch #4
> v2: avoid long lines in cover letter; fix multiline comment style

Series applied, thanks.
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