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[76.102.12.149]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b6b34c0e22sm10795194eec.6.2026.01.18.17.44.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 18 Jan 2026 17:44:53 -0800 (PST) Date: Sun, 18 Jan 2026 17:44:52 -0800 From: Stanislav Fomichev To: Daniel Borkmann Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, kuba@kernel.org, davem@davemloft.net, razor@blackwall.org, pabeni@redhat.com, willemb@google.com, sdf@fomichev.me, john.fastabend@gmail.com, martin.lau@kernel.org, jordan@jrife.io, maciej.fijalkowski@intel.com, magnus.karlsson@intel.com, dw@davidwei.uk, toke@redhat.com, yangzhenze@bytedance.com, wangdongdong.6@bytedance.com Subject: Re: [PATCH net-next v7 05/16] net: Proxy net_mp_{open,close}_rxq for leased queues Message-ID: References: <20260115082603.219152-1-daniel@iogearbox.net> <20260115082603.219152-6-daniel@iogearbox.net> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20260115082603.219152-6-daniel@iogearbox.net> On 01/15, Daniel Borkmann wrote: > From: David Wei > > When a process in a container wants to setup a memory provider, it will > use the virtual netdev and a leased rxq, and call net_mp_{open,close}_rxq > to try and restart the queue. At this point, proxy the queue restart on > the real rxq in the physical netdev. > > For memory providers (io_uring zero-copy rx and devmem), it causes the > real rxq in the physical netdev to be filled from a memory provider that > has DMA mapped memory from a process within a container. > > Signed-off-by: David Wei > Co-developed-by: Daniel Borkmann > Signed-off-by: Daniel Borkmann > Reviewed-by: Nikolay Aleksandrov Acked-by: Stanislav Fomichev