ACK: [PATCH Wily SRU] powerpc/eeh: Fix recursive fenced PHB on Broadcom shiner adapter

[Brad Figg]

On Wed, Jan 13, 2016 at 12:32:29PM -0700, tim.gardner at canonical.com wrote:
> From: Gavin Shan <gwshan at linux.vnet.ibm.com>
> 
> BugLink: http://bugs.launchpad.net/bugs/1532942
> 
> Similar to commit b6541db ("powerpc/eeh: Block PCI config access
> upon frozen PE"), this blocks the PCI config space of Broadcom
> Shiner adapter until PE reset is completed, to avoid recursive
> fenced PHB when dumping PCI config registers during the period
> of error recovery.
> 
>    ~# lspci -ns 0003:03:00.0
>    0003:03:00.0 0200: 14e4:168a (rev 10)
>    ~# lspci -s 0003:03:00.0
>    0003:03:00.0 Ethernet controller: Broadcom Corporation \
>                 NetXtreme II BCM57800 1/10 Gigabit Ethernet (rev 10)
> 
> Signed-off-by: Gavin Shan <gwshan at linux.vnet.ibm.com>
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
> (cherry picked from commit 353169acf1858bb2dc3f91475dafabce547de14c)
> Signed-off-by: Tim Gardner <tim.gardner at canonical.com>
> ---
>  arch/powerpc/platforms/powernv/eeh-powernv.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c
> index 7cf0df8..d01a0c1 100644
> --- a/arch/powerpc/platforms/powernv/eeh-powernv.c
> +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c
> @@ -443,11 +443,14 @@ static void *pnv_eeh_probe(struct pci_dn *pdn, void *data)
>  	 * that PE to block its config space.
>  	 *
>  	 * Broadcom Austin 4-ports NICs (14e4:1657)
> +	 * Broadcom Shiner 4-ports 1G NICs (14e4:168a)
>  	 * Broadcom Shiner 2-ports 10G NICs (14e4:168e)
>  	 */
>  	if ((pdn->vendor_id == PCI_VENDOR_ID_BROADCOM &&
>  	     pdn->device_id == 0x1657) ||
>  	    (pdn->vendor_id == PCI_VENDOR_ID_BROADCOM &&
> +	     pdn->device_id == 0x168a) ||
> +	    (pdn->vendor_id == PCI_VENDOR_ID_BROADCOM &&
>  	     pdn->device_id == 0x168e))
>  		edev->pe->state |= EEH_PE_CFG_RESTRICTED;
>  
> -- 
> 1.9.1
> 
> 
> -- 
> kernel-team mailing list
> kernel-team at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team

Clean cherry-pick.

-- 
Brad Figg brad.figg at canonical.com http://www.canonical.com