netdev - Re: [PATCH] tg3: Fix rx hang on MTU change with 5717/5719

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Message-Id: <20171219.102540.514500547389365802.davem@davemloft.net>
Date:   Tue, 19 Dec 2017 10:25:40 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     brking@...ux.vnet.ibm.com
Cc:     siva.kallam@...adcom.com, prashant@...adcom.com,
        mchan@...adcom.com, benjamin.kun@...adcom.com,
        netdev@...r.kernel.org, maurosr@...ux.vnet.ibm.com,
        muvic@...ux.vnet.ibm.com, brking@...ox.com, stable@...r.kernel.org
Subject: Re: [PATCH] tg3: Fix rx hang on MTU change with 5717/5719

From: Brian King <brking@...ux.vnet.ibm.com>
Date: Fri, 15 Dec 2017 15:21:50 -0600

> This fixes a hang issue seen when changing the MTU size from 1500 MTU
> to 9000 MTU on both 5717 and 5719 chips. In discussion with Broadcom,
> they've indicated that these chipsets have the same phy as the 57766
> chipset, so the same workarounds apply. This has been tested by IBM
> on both Power 8 and Power 9 systems as well as by Broadcom on x86
> hardware and has been confirmed to resolve the hang issue.
> 
> Cc: stable <stable@...r.kernel.org>
> Signed-off-by: Brian King <brking@...ux.vnet.ibm.com>

Applied and queued up for -stable.

Please do not add explicit CC: stable tags for networking patches, as
documented in Documentation/networking/netdev-FAQ.txt

Thank you.