RE: [PATCH v8 16/18] NTB: tool: Enable the NTB/PCIe link on the local or remote side of bridge

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> -----Original Message-----
> From: Kishon Vijay Abraham I <kishon@xxxxxx>
> Sent: Wednesday, November 11, 2020 8:36 AM
> To: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>; Jonathan Corbet
> <corbet@xxxxxxx>; Kishon Vijay Abraham I <kishon@xxxxxx>; Lorenzo
> Pieralisi <lorenzo.pieralisi@xxxxxxx>; Arnd Bergmann <arnd@xxxxxxxx>;
> Jon Mason <jdmason@xxxxxxxx>; Jiang, Dave <dave.jiang@xxxxxxxxx>;
> Allen Hubbe <allenbh@xxxxxxxxx>; Tom Joseph <tjoseph@xxxxxxxxxxx>;
> Rob Herring <robh@xxxxxxxxxx>
> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>; linux-
> pci@xxxxxxxxxxxxxxx; linux-doc@xxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; linux-ntb@xxxxxxxxxxxxxxxx
> Subject: [PATCH v8 16/18] NTB: tool: Enable the NTB/PCIe link on the local or
> remote side of bridge
> 
> Invoke ntb_link_enable() to enable the NTB/PCIe link on the local or remote
> side of the bridge.
> 
> Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
> ---
>  drivers/ntb/test/ntb_tool.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/ntb/test/ntb_tool.c b/drivers/ntb/test/ntb_tool.c index
> b7bf3f863d79..8230ced503e3 100644
> --- a/drivers/ntb/test/ntb_tool.c
> +++ b/drivers/ntb/test/ntb_tool.c
> @@ -1638,6 +1638,7 @@ static int tool_probe(struct ntb_client *self, struct
> ntb_dev *ntb)
> 
>  	tool_setup_dbgfs(tc);
> 
> +	ntb_link_enable(ntb, NTB_SPEED_AUTO, NTB_WIDTH_AUTO);

The tool expects the user to enable the link via debugfs according to documentation. Is this necessary?

>  	return 0;
> 
>  err_clear_mws:
> --
> 2.17.1




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