From: Jesper Dangaard Brouer <brouer@redhat.com>
To: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: netdev@vger.kernel.org, jaswinder.singh@linaro.org,
ard.biesheuvel@linaro.org, bjorn.topel@intel.com,
magnus.karlsson@intel.com, daniel@iogearbox.net, ast@kernel.org,
makita.toshiaki@lab.ntt.co.jp, jakub.kicinski@netronome.com,
john.fastabend@gmail.com, davem@davemloft.net,
maciejromanfijalkowski@gmail.com, brouer@redhat.com
Subject: Re: [PATCH 3/3, net-next] net: netsec: add XDP support
Date: Fri, 28 Jun 2019 15:35:52 +0200 [thread overview]
Message-ID: <20190628153552.78a8c5ad@carbon> (raw)
In-Reply-To: <1561718355-13919-4-git-send-email-ilias.apalodimas@linaro.org>
On Fri, 28 Jun 2019 13:39:15 +0300
Ilias Apalodimas <ilias.apalodimas@linaro.org> wrote:
> +static int netsec_xdp_setup(struct netsec_priv *priv, struct bpf_prog *prog,
> + struct netlink_ext_ack *extack)
> +{
> + struct net_device *dev = priv->ndev;
> + struct bpf_prog *old_prog;
> +
> + /* For now just support only the usual MTU sized frames */
> + if (prog && dev->mtu > 1500) {
> + NL_SET_ERR_MSG_MOD(extack, "Jumbo frames not supported on XDP");
> + return -EOPNOTSUPP;
> + }
> +
> + if (netif_running(dev))
> + netsec_netdev_stop(dev);
> +
> + /* Detach old prog, if any */
> + old_prog = xchg(&priv->xdp_prog, prog);
> + if (old_prog)
> + bpf_prog_put(old_prog);
> +
> + if (netif_running(dev))
> + netsec_netdev_open(dev);
Shouldn't the if-statement be if (!netif_running(dev))
> +
> + return 0;
> +}
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
LinkedIn: http://www.linkedin.com/in/brouer
next prev parent reply other threads:[~2019-06-28 13:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-28 10:39 [PATCH 0/3, net-next] net: netsec: Add XDP Support Ilias Apalodimas
2019-06-28 10:39 ` [PATCH 1/3, net-next] net: netsec: Use page_pool API Ilias Apalodimas
2019-06-28 13:03 ` Jesper Dangaard Brouer
2019-06-28 13:04 ` Jesper Dangaard Brouer
2019-06-28 16:43 ` David Miller
2019-06-28 17:19 ` Ilias Apalodimas
2019-06-28 17:41 ` Jesper Dangaard Brouer
2019-06-28 10:39 ` [PATCH 2/3, net-next] net: page_pool: add helper function for retrieving dma direction Ilias Apalodimas
2019-06-28 13:07 ` Jesper Dangaard Brouer
2019-06-28 10:39 ` [PATCH 3/3, net-next] net: netsec: add XDP support Ilias Apalodimas
2019-06-28 13:35 ` Jesper Dangaard Brouer [this message]
2019-06-28 16:44 ` David Miller
2019-06-28 16:47 ` Ilias Apalodimas
2019-06-28 17:23 ` Maciej Fijalkowski
2019-06-28 17:59 ` Ilias Apalodimas
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