From: Andrew Lunn <andrew@lunn.ch>
To: "Marek Behún" <kabel@kernel.org>
Cc: netdev@vger.kernel.org, davem@davemloft.net,
Jakub Kicinski <kuba@kernel.org>,
Sven Auhagen <sven.auhagen@voleatech.de>,
Matteo Croce <mcroce@microsoft.com>,
Lorenzo Bianconi <lorenzo@kernel.org>
Subject: Re: [PATCH net-next] net: mvpp2: increase MTU limit when XDP enabled
Date: Tue, 5 Jan 2021 21:23:12 +0100 [thread overview]
Message-ID: <X/TKsHr+8U82kwAz@lunn.ch> (raw)
In-Reply-To: <20210105171921.8022-1-kabel@kernel.org>
> @@ -4913,8 +4914,8 @@ static int mvpp2_xdp_setup(struct mvpp2_port *port, struct netdev_bpf *bpf)
> bool running = netif_running(port->dev);
> bool reset = !prog != !port->xdp_prog;
>
> - if (port->dev->mtu > ETH_DATA_LEN) {
> - NL_SET_ERR_MSG_MOD(bpf->extack, "XDP is not supported with jumbo frames enabled");
> + if (port->dev->mtu > MVPP2_MAX_RX_BUF_SIZE) {
> + NL_SET_ERR_MSG_MOD(bpf->extack, "MTU too large for XDP");
Hi Marek
Since MVPP2_MAX_RX_BUF_SIZE is a constant, you can probably do some
CPP magic and have it part of the extack message, to give the user a
clue what the maximum is.
Andrew
next prev parent reply other threads:[~2021-01-05 20:24 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-05 17:19 [PATCH net-next] net: mvpp2: increase MTU limit when XDP enabled Marek Behún
2021-01-05 17:24 ` Sven Auhagen
2021-01-05 17:43 ` Marek Behún
2021-01-05 20:21 ` Andrew Lunn
2021-01-06 11:56 ` Marek Behún
2021-01-06 12:32 ` Marek Behún
2021-01-06 12:33 ` Marek Behún
2021-01-06 18:34 ` Andrew Lunn
2021-01-06 13:13 ` Vladimir Oltean
2021-01-06 10:33 ` Jesper Dangaard Brouer
2021-01-06 11:28 ` Sven Auhagen
2021-01-05 20:23 ` Andrew Lunn [this message]
2021-01-06 12:11 ` Marek Behún
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