From: Jakub Kicinski <kuba@kernel.org>
To: "Toke Høiland-Jørgensen" <toke@redhat.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Alexei Starovoitov <alexei.starovoitov@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
Network Development <netdev@vger.kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Boqun Feng <boqun.feng@gmail.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Eric Dumazet <edumazet@google.com>,
Frederic Weisbecker <frederic@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Paolo Abeni <pabeni@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Waiman Long <longman@redhat.com>, Will Deacon <will@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Cong Wang <xiyou.wangcong@gmail.com>, Hao Luo <haoluo@google.com>,
Jamal Hadi Salim <jhs@mojatatu.com>,
Jesper Dangaard Brouer <hawk@kernel.org>,
Jiri Olsa <jolsa@kernel.org>, Jiri Pirko <jiri@resnulli.us>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
Ronak Doshi <doshir@vmware.com>, Song Liu <song@kernel.org>,
Stanislav Fomichev <sdf@google.com>,
VMware PV-Drivers Reviewers <pv-drivers@vmware.com>,
Yonghong Song <yonghong.song@linux.dev>,
bpf <bpf@vger.kernel.org>
Subject: Re: [PATCH net-next 15/24] net: Use nested-BH locking for XDP redirect.
Date: Thu, 18 Jan 2024 08:37:30 -0800 [thread overview]
Message-ID: <20240118083730.5e0166aa@kernel.org> (raw)
In-Reply-To: <87bk9i6ert.fsf@toke.dk>
On Thu, 18 Jan 2024 12:51:18 +0100 Toke Høiland-Jørgensen wrote:
> I do agree that conceptually it makes a lot of sense to encapsulate the
> budget like this so drivers don't have to do all this state tracking
> themselves. It does appear that drivers are doing different things with
> the budget as it is today, though. For instance, the intel drivers seem
> to divide the budget over all the enabled RX rings(?); so I'm wondering
> if it'll be possible to unify drivers around a more opaque NAPI poll API?
We can come up with APIs which would cater to multi-queue cases.
Bigger question is what is the sensible polling strategy for those,
just dividing the budget seems, hm, crude.
next prev parent reply other threads:[~2024-01-18 16:37 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-15 17:07 [PATCH net-next 00/24] locking: Introduce nested-BH locking Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 01/24] locking/local_lock: Introduce guard definition for local_lock Sebastian Andrzej Siewior
2023-12-18 8:16 ` Paolo Abeni
2024-01-11 16:19 ` Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 02/24] locking/local_lock: Add local nested BH locking infrastructure Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 03/24] net: Use __napi_alloc_frag_align() instead of open coding it Sebastian Andrzej Siewior
2023-12-18 7:48 ` Paolo Abeni
2024-01-12 9:01 ` Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 04/24] net: Use nested-BH locking for napi_alloc_cache Sebastian Andrzej Siewior
2023-12-16 4:43 ` kernel test robot
2024-01-12 10:58 ` Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 05/24] net/tcp_sigpool: Use nested-BH locking for sigpool_scratch Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 06/24] net/ipv4: Use nested-BH locking for ipv4_tcp_sk Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 07/24] netfilter: br_netfilter: Use nested-BH locking for brnf_frag_data_storage Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 08/24] net: softnet_data: Make xmit.recursion per task Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 09/24] dev: Use the RPS lock for softnet_data::input_pkt_queue on PREEMPT_RT Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 10/24] dev: Use nested-BH locking for softnet_data.process_queue Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 11/24] lwt: Don't disable migration prio invoking BPF Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 12/24] seg6: Use nested-BH locking for seg6_bpf_srh_states Sebastian Andrzej Siewior
2023-12-16 3:39 ` kernel test robot
2023-12-18 8:33 ` Paolo Abeni
2024-01-12 11:23 ` Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 13/24] net: Use nested-BH locking for bpf_scratchpad Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 14/24] net: Add a lock which held during the redirect process Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 15/24] net: Use nested-BH locking for XDP redirect Sebastian Andrzej Siewior
2023-12-16 4:12 ` kernel test robot
2023-12-20 0:25 ` Alexei Starovoitov
2024-01-04 19:29 ` Toke Høiland-Jørgensen
2024-01-12 17:41 ` Sebastian Andrzej Siewior
2024-01-17 16:37 ` Toke Høiland-Jørgensen
2024-01-18 2:04 ` Jakub Kicinski
2024-01-18 8:27 ` Sebastian Andrzej Siewior
2024-01-18 16:38 ` Jakub Kicinski
2024-01-18 16:50 ` Sebastian Andrzej Siewior
2024-01-18 11:51 ` Toke Høiland-Jørgensen
2024-01-18 16:37 ` Jakub Kicinski [this message]
2024-01-20 14:41 ` Toke Høiland-Jørgensen
2024-01-18 7:35 ` Sebastian Andrzej Siewior
2024-01-18 11:58 ` Toke Høiland-Jørgensen
2023-12-15 17:07 ` [PATCH net-next 16/24] net: netkit, veth, tun, virt*: " Sebastian Andrzej Siewior
2023-12-16 19:28 ` kernel test robot
2023-12-18 8:52 ` Daniel Borkmann
2024-01-12 15:37 ` Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 17/24] net: amazon, aquanti, broadcom, cavium, engleder: " Sebastian Andrzej Siewior
2023-12-16 22:09 ` Kiyanovski, Arthur
2024-01-12 17:53 ` Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 18/24] net: Freescale: " Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 19/24] net: fungible, gve, mtk, microchip, mana: " Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 20/24] net: intel: " Sebastian Andrzej Siewior
2023-12-16 4:53 ` kernel test robot
2023-12-19 0:01 ` Nathan Chancellor
2023-12-19 16:55 ` Nick Desaulniers
2023-12-15 17:07 ` [PATCH net-next 21/24] net: marvell: " Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 22/24] net: mellanox, nfp, sfc: " Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 23/24] net: qlogic, socionext, stmmac, cpsw: " Sebastian Andrzej Siewior
2023-12-15 17:07 ` [PATCH net-next 24/24] net: bpf: Add lockdep assert for the redirect process Sebastian Andrzej Siewior
2023-12-15 22:50 ` [PATCH net-next 00/24] locking: Introduce nested-BH locking Jakub Kicinski
2023-12-18 17:23 ` Sebastian Andrzej Siewior
2023-12-19 0:41 ` Jakub Kicinski
2023-12-21 20:46 ` Sebastian Andrzej Siewior
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