On Thu, Dec 19, 2019 at 05:21:16PM +0200, Madalin Bucur wrote:
> From: Madalin Bucur <madalin.bucur@xxxxxxx>
>
> Add explicit entries for XFI, SFI to make sure the device
> tree entries for phy-connection-type "xfi" or "sfi" are
> properly parsed and differentiated against the existing
> backplane 10GBASE-KR mode.
10GBASE-KR is actually used for XFI and SFI (due to a slight mistake on
my part, it should've been just 10GBASE-R).
Please explain exactly what the difference is between XFI, SFI and
10GBASE-R. I have not been able to find definitive definitions for
XFI and SFI anywhere, and they appear to be precisely identical to
10GBASE-R. It seems that it's just a terminology thing, with
different groups wanting to "own" what is essentially exactly the
same interface type.
>
> Signed-off-by: Madalin Bucur <madalin.bucur@xxxxxxx>
> ---
> include/linux/phy.h | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/phy.h b/include/linux/phy.h
> index 5032d453ac66..ebb793621f0b 100644
> --- a/include/linux/phy.h
> +++ b/include/linux/phy.h
> @@ -99,7 +99,8 @@ typedef enum {
> PHY_INTERFACE_MODE_2500BASEX,
> PHY_INTERFACE_MODE_RXAUI,
> PHY_INTERFACE_MODE_XAUI,
> - /* 10GBASE-KR, XFI, SFI - single lane 10G Serdes */
> + PHY_INTERFACE_MODE_XFI,
> + PHY_INTERFACE_MODE_SFI,
> PHY_INTERFACE_MODE_10GKR,
> PHY_INTERFACE_MODE_USXGMII,
> PHY_INTERFACE_MODE_MAX,
> @@ -175,6 +176,10 @@ static inline const char *phy_modes(phy_interface_t interface)
> return "rxaui";
> case PHY_INTERFACE_MODE_XAUI:
> return "xaui";
> + case PHY_INTERFACE_MODE_XFI:
> + return "xfi";
> + case PHY_INTERFACE_MODE_SFI:
> + return "sfi";
> case PHY_INTERFACE_MODE_10GKR:
> return "10gbase-kr";
> case PHY_INTERFACE_MODE_USXGMII:
> --
> 2.1.0
>
>
--
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