From: Stanislav Fomichev <sdf.kernel@gmail.com>
To: Mina Almasry <almasrymina@google.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
Donald Hunter <donald.hunter@gmail.com>,
Stanislav Fomichev <sdf@fomichev.me>,
Nikolay Aleksandrov <razor@blackwall.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Bobby Eshleman <bobbyeshleman@meta.com>
Subject: Re: [PATCH net-next v1] net: devmem: document that bind-tx is unprivileged by design
Date: Mon, 21 Sep 2026 13:50:59 -0700 [thread overview]
Message-ID: <arGYqUOdDXccGVBB@devvm7509.cco0.facebook.com> (raw)
In-Reply-To: <20260921195545.493253-1-almasrymina@google.com>
On 09/21, Mina Almasry wrote:
> Unlike bind-rx, which configures shared NIC RX queues to steer incoming
> traffic into the caller's dmabuf and requires CAP_NET_ADMIN
> (uns-admin-perm), bind-tx only DMA-maps the caller's dmabuf so the caller
> can transmit from it on their own sockets without affecting other traffic
> or device configuration.
>
> Add a comment in netdev.yaml and above netdev_nl_bind_tx_doit() to make it
> explicit that NETDEV_CMD_BIND_TX is unprivileged by design.
>
> Signed-off-by: Mina Almasry <almasrymina@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
next prev parent reply other threads:[~2026-09-21 20:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-21 19:54 [PATCH net-next v1] net: devmem: document that bind-tx is unprivileged by design Mina Almasry
2026-09-21 20:50 ` Stanislav Fomichev [this message]
2026-09-21 21:00 ` Daniel Borkmann
2026-09-22 10:56 ` netdev-bot+sashiko
2026-09-22 14:52 ` Mina Almasry
2026-09-23 2:00 ` patchwork-bot+netdevbpf
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