On 6/15/24 1:30 PM, Paul Barker wrote:
> The datasheets for all SoCs using the GbEth IP specify a maximum
> transmission frame size of 1.5 kByte. I've confirmed through internal
> discussions that support for 1522 byte frames has been validated, which
> allows us to support the default MTU of 1500 bytes after reserving space
> for the Ethernet header, frame checksums and an optional VLAN tag.
>
> Fixes: 2e95e08ac009 ("ravb: Add rx_max_buf_size to struct ravb_hw_info")
> Signed-off-by: Paul Barker <paul.barker.ct@xxxxxxxxxxxxxx>
[...]
Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
> diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
> index c1546b916e4e..02cbf850bd85 100644
> --- a/drivers/net/ethernet/renesas/ravb_main.c
> +++ b/drivers/net/ethernet/renesas/ravb_main.c
> @@ -2664,6 +2664,7 @@ static const struct ravb_hw_info ravb_gen3_hw_info = {
> .net_features = NETIF_F_RXCSUM,
> .stats_len = ARRAY_SIZE(ravb_gstrings_stats),
> .tccr_mask = TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3,
> + .tx_max_frame_size = SZ_2K,
The R-Car gen3 manual says 2047... Typo? :-)
[...]
MBR, Sergey
