[PATCH] net: gem: Disable broadcast setting

[Ramon Fried]

On Fri, Oct 15, 2021 at 4:03 PM Michal Simek <michal.simek at xilinx.com> wrote:
>
> There is no need for GEM to accepts broadcast packets because they are not
> handled by u-boot anyway. That's why use HW IP feature and don't waste time
> on these packats which will be dropped anyway.
>
> Signed-off-by: Michal Simek <michal.simek at xilinx.com>
> ---
>
>  drivers/net/zynq_gem.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
> index ff599822673c..c309c3c95499 100644
> --- a/drivers/net/zynq_gem.c
> +++ b/drivers/net/zynq_gem.c
> @@ -60,6 +60,7 @@
>  #define ZYNQ_GEM_NWCFG_SPEED100                0x00000001 /* 100 Mbps operation */
>  #define ZYNQ_GEM_NWCFG_SPEED1000       0x00000400 /* 1Gbps operation */
>  #define ZYNQ_GEM_NWCFG_FDEN            0x00000002 /* Full Duplex mode */
> +#define ZYNQ_GEM_NWCFG_NO_BRDC         BIT(5) /* No broadcast */
>  #define ZYNQ_GEM_NWCFG_FSREM           0x00020000 /* FCS removal */
>  #define ZYNQ_GEM_NWCFG_SGMII_ENBL      0x08000000 /* SGMII Enable */
>  #define ZYNQ_GEM_NWCFG_PCS_SEL         0x00000800 /* PCS select */
> @@ -77,6 +78,7 @@
>
>  #define ZYNQ_GEM_NWCFG_INIT            (ZYNQ_GEM_DBUS_WIDTH | \
>                                         ZYNQ_GEM_NWCFG_FDEN | \
> +                                       ZYNQ_GEM_NWCFG_NO_BRDC | \
>                                         ZYNQ_GEM_NWCFG_FSREM | \
>                                         ZYNQ_GEM_NWCFG_MDCCLKDIV)
>
> --
> 2.33.1
>
Reviewed-by: Ramon Fried <rfried.dev at gmail.com>